Commit | Line | Data |
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1da177e4 LT |
1 | /******************************************************************************* |
2 | ||
0abb6eb1 AK |
3 | Intel PRO/1000 Linux driver |
4 | Copyright(c) 1999 - 2006 Intel Corporation. | |
5 | ||
6 | This program is free software; you can redistribute it and/or modify it | |
7 | under the terms and conditions of the GNU General Public License, | |
8 | version 2, as published by the Free Software Foundation. | |
9 | ||
10 | This program is distributed in the hope it will be useful, but WITHOUT | |
11 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
1da177e4 | 13 | more details. |
0abb6eb1 | 14 | |
1da177e4 | 15 | You should have received a copy of the GNU General Public License along with |
0abb6eb1 AK |
16 | this program; if not, write to the Free Software Foundation, Inc., |
17 | 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. | |
18 | ||
19 | The full GNU General Public License is included in this distribution in | |
20 | the file called "COPYING". | |
21 | ||
1da177e4 LT |
22 | Contact Information: |
23 | Linux NICS <linux.nics@intel.com> | |
3d41e30a | 24 | e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> |
1da177e4 LT |
25 | Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 |
26 | ||
27 | *******************************************************************************/ | |
28 | ||
29 | /* e1000_hw.c | |
30 | * Shared functions for accessing and configuring the MAC | |
31 | */ | |
32 | ||
8fc897b0 | 33 | |
1da177e4 LT |
34 | #include "e1000_hw.h" |
35 | ||
406874a7 JP |
36 | static s32 e1000_swfw_sync_acquire(struct e1000_hw *hw, u16 mask); |
37 | static void e1000_swfw_sync_release(struct e1000_hw *hw, u16 mask); | |
38 | static s32 e1000_read_kmrn_reg(struct e1000_hw *hw, u32 reg_addr, u16 *data); | |
39 | static s32 e1000_write_kmrn_reg(struct e1000_hw *hw, u32 reg_addr, u16 data); | |
40 | static s32 e1000_get_software_semaphore(struct e1000_hw *hw); | |
35574764 NN |
41 | static void e1000_release_software_semaphore(struct e1000_hw *hw); |
42 | ||
406874a7 JP |
43 | static u8 e1000_arc_subsystem_valid(struct e1000_hw *hw); |
44 | static s32 e1000_check_downshift(struct e1000_hw *hw); | |
45 | static s32 e1000_check_polarity(struct e1000_hw *hw, e1000_rev_polarity *polarity); | |
35574764 NN |
46 | static void e1000_clear_hw_cntrs(struct e1000_hw *hw); |
47 | static void e1000_clear_vfta(struct e1000_hw *hw); | |
406874a7 JP |
48 | static s32 e1000_commit_shadow_ram(struct e1000_hw *hw); |
49 | static s32 e1000_config_dsp_after_link_change(struct e1000_hw *hw, | |
c3033b01 | 50 | bool link_up); |
406874a7 JP |
51 | static s32 e1000_config_fc_after_link_up(struct e1000_hw *hw); |
52 | static s32 e1000_detect_gig_phy(struct e1000_hw *hw); | |
53 | static s32 e1000_erase_ich8_4k_segment(struct e1000_hw *hw, u32 bank); | |
54 | static s32 e1000_get_auto_rd_done(struct e1000_hw *hw); | |
55 | static s32 e1000_get_cable_length(struct e1000_hw *hw, u16 *min_length, u16 *max_length); | |
56 | static s32 e1000_get_hw_eeprom_semaphore(struct e1000_hw *hw); | |
57 | static s32 e1000_get_phy_cfg_done(struct e1000_hw *hw); | |
58 | static s32 e1000_get_software_flag(struct e1000_hw *hw); | |
59 | static s32 e1000_ich8_cycle_init(struct e1000_hw *hw); | |
60 | static s32 e1000_ich8_flash_cycle(struct e1000_hw *hw, u32 timeout); | |
61 | static s32 e1000_id_led_init(struct e1000_hw *hw); | |
62 | static s32 e1000_init_lcd_from_nvm_config_region(struct e1000_hw *hw, u32 cnf_base_addr, u32 cnf_size); | |
63 | static s32 e1000_init_lcd_from_nvm(struct e1000_hw *hw); | |
35574764 | 64 | static void e1000_init_rx_addrs(struct e1000_hw *hw); |
09ae3e88 | 65 | static void e1000_initialize_hardware_bits(struct e1000_hw *hw); |
c3033b01 | 66 | static bool e1000_is_onboard_nvm_eeprom(struct e1000_hw *hw); |
406874a7 JP |
67 | static s32 e1000_kumeran_lock_loss_workaround(struct e1000_hw *hw); |
68 | static s32 e1000_mng_enable_host_if(struct e1000_hw *hw); | |
69 | static s32 e1000_mng_host_if_write(struct e1000_hw *hw, u8 *buffer, u16 length, u16 offset, u8 *sum); | |
70 | static s32 e1000_mng_write_cmd_header(struct e1000_hw* hw, struct e1000_host_mng_command_header* hdr); | |
71 | static s32 e1000_mng_write_commit(struct e1000_hw *hw); | |
72 | static s32 e1000_phy_ife_get_info(struct e1000_hw *hw, struct e1000_phy_info *phy_info); | |
73 | static s32 e1000_phy_igp_get_info(struct e1000_hw *hw, struct e1000_phy_info *phy_info); | |
74 | static s32 e1000_read_eeprom_eerd(struct e1000_hw *hw, u16 offset, u16 words, u16 *data); | |
75 | static s32 e1000_write_eeprom_eewr(struct e1000_hw *hw, u16 offset, u16 words, u16 *data); | |
76 | static s32 e1000_poll_eerd_eewr_done(struct e1000_hw *hw, int eerd); | |
77 | static s32 e1000_phy_m88_get_info(struct e1000_hw *hw, struct e1000_phy_info *phy_info); | |
35574764 | 78 | static void e1000_put_hw_eeprom_semaphore(struct e1000_hw *hw); |
406874a7 JP |
79 | static s32 e1000_read_ich8_byte(struct e1000_hw *hw, u32 index, u8 *data); |
80 | static s32 e1000_verify_write_ich8_byte(struct e1000_hw *hw, u32 index, u8 byte); | |
81 | static s32 e1000_write_ich8_byte(struct e1000_hw *hw, u32 index, u8 byte); | |
82 | static s32 e1000_read_ich8_word(struct e1000_hw *hw, u32 index, u16 *data); | |
83 | static s32 e1000_read_ich8_data(struct e1000_hw *hw, u32 index, u32 size, u16 *data); | |
84 | static s32 e1000_write_ich8_data(struct e1000_hw *hw, u32 index, u32 size, u16 data); | |
85 | static s32 e1000_read_eeprom_ich8(struct e1000_hw *hw, u16 offset, u16 words, u16 *data); | |
86 | static s32 e1000_write_eeprom_ich8(struct e1000_hw *hw, u16 offset, u16 words, u16 *data); | |
35574764 | 87 | static void e1000_release_software_flag(struct e1000_hw *hw); |
406874a7 JP |
88 | static s32 e1000_set_d3_lplu_state(struct e1000_hw *hw, bool active); |
89 | static s32 e1000_set_d0_lplu_state(struct e1000_hw *hw, bool active); | |
90 | static s32 e1000_set_pci_ex_no_snoop(struct e1000_hw *hw, u32 no_snoop); | |
35574764 | 91 | static void e1000_set_pci_express_master_disable(struct e1000_hw *hw); |
406874a7 JP |
92 | static s32 e1000_wait_autoneg(struct e1000_hw *hw); |
93 | static void e1000_write_reg_io(struct e1000_hw *hw, u32 offset, u32 value); | |
94 | static s32 e1000_set_phy_type(struct e1000_hw *hw); | |
1da177e4 | 95 | static void e1000_phy_init_script(struct e1000_hw *hw); |
406874a7 JP |
96 | static s32 e1000_setup_copper_link(struct e1000_hw *hw); |
97 | static s32 e1000_setup_fiber_serdes_link(struct e1000_hw *hw); | |
98 | static s32 e1000_adjust_serdes_amplitude(struct e1000_hw *hw); | |
99 | static s32 e1000_phy_force_speed_duplex(struct e1000_hw *hw); | |
100 | static s32 e1000_config_mac_to_phy(struct e1000_hw *hw); | |
101 | static void e1000_raise_mdi_clk(struct e1000_hw *hw, u32 *ctrl); | |
102 | static void e1000_lower_mdi_clk(struct e1000_hw *hw, u32 *ctrl); | |
103 | static void e1000_shift_out_mdi_bits(struct e1000_hw *hw, u32 data, | |
104 | u16 count); | |
105 | static u16 e1000_shift_in_mdi_bits(struct e1000_hw *hw); | |
106 | static s32 e1000_phy_reset_dsp(struct e1000_hw *hw); | |
107 | static s32 e1000_write_eeprom_spi(struct e1000_hw *hw, u16 offset, | |
108 | u16 words, u16 *data); | |
109 | static s32 e1000_write_eeprom_microwire(struct e1000_hw *hw, | |
110 | u16 offset, u16 words, | |
111 | u16 *data); | |
112 | static s32 e1000_spi_eeprom_ready(struct e1000_hw *hw); | |
113 | static void e1000_raise_ee_clk(struct e1000_hw *hw, u32 *eecd); | |
114 | static void e1000_lower_ee_clk(struct e1000_hw *hw, u32 *eecd); | |
115 | static void e1000_shift_out_ee_bits(struct e1000_hw *hw, u16 data, | |
116 | u16 count); | |
117 | static s32 e1000_write_phy_reg_ex(struct e1000_hw *hw, u32 reg_addr, | |
118 | u16 phy_data); | |
119 | static s32 e1000_read_phy_reg_ex(struct e1000_hw *hw,u32 reg_addr, | |
120 | u16 *phy_data); | |
121 | static u16 e1000_shift_in_ee_bits(struct e1000_hw *hw, u16 count); | |
122 | static s32 e1000_acquire_eeprom(struct e1000_hw *hw); | |
1da177e4 LT |
123 | static void e1000_release_eeprom(struct e1000_hw *hw); |
124 | static void e1000_standby_eeprom(struct e1000_hw *hw); | |
406874a7 JP |
125 | static s32 e1000_set_vco_speed(struct e1000_hw *hw); |
126 | static s32 e1000_polarity_reversal_workaround(struct e1000_hw *hw); | |
127 | static s32 e1000_set_phy_mode(struct e1000_hw *hw); | |
128 | static s32 e1000_host_if_read_cookie(struct e1000_hw *hw, u8 *buffer); | |
129 | static u8 e1000_calculate_mng_checksum(char *buffer, u32 length); | |
130 | static s32 e1000_configure_kmrn_for_10_100(struct e1000_hw *hw, | |
131 | u16 duplex); | |
132 | static s32 e1000_configure_kmrn_for_1000(struct e1000_hw *hw); | |
1da177e4 LT |
133 | |
134 | /* IGP cable length table */ | |
135 | static const | |
406874a7 | 136 | u16 e1000_igp_cable_length_table[IGP01E1000_AGC_LENGTH_TABLE_SIZE] = |
1da177e4 LT |
137 | { 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, |
138 | 5, 10, 10, 10, 10, 10, 10, 10, 20, 20, 20, 20, 20, 25, 25, 25, | |
139 | 25, 25, 25, 25, 30, 30, 30, 30, 40, 40, 40, 40, 40, 40, 40, 40, | |
140 | 40, 50, 50, 50, 50, 50, 50, 50, 60, 60, 60, 60, 60, 60, 60, 60, | |
141 | 60, 70, 70, 70, 70, 70, 70, 80, 80, 80, 80, 80, 80, 90, 90, 90, | |
142 | 90, 90, 90, 90, 90, 90, 100, 100, 100, 100, 100, 100, 100, 100, 100, 100, | |
143 | 100, 100, 100, 100, 110, 110, 110, 110, 110, 110, 110, 110, 110, 110, 110, 110, | |
144 | 110, 110, 110, 110, 110, 110, 120, 120, 120, 120, 120, 120, 120, 120, 120, 120}; | |
145 | ||
2d7edb92 | 146 | static const |
406874a7 | 147 | u16 e1000_igp_2_cable_length_table[IGP02E1000_AGC_LENGTH_TABLE_SIZE] = |
868d5309 MC |
148 | { 0, 0, 0, 0, 0, 0, 0, 0, 3, 5, 8, 11, 13, 16, 18, 21, |
149 | 0, 0, 0, 3, 6, 10, 13, 16, 19, 23, 26, 29, 32, 35, 38, 41, | |
150 | 6, 10, 14, 18, 22, 26, 30, 33, 37, 41, 44, 48, 51, 54, 58, 61, | |
151 | 21, 26, 31, 35, 40, 44, 49, 53, 57, 61, 65, 68, 72, 75, 79, 82, | |
152 | 40, 45, 51, 56, 61, 66, 70, 75, 79, 83, 87, 91, 94, 98, 101, 104, | |
153 | 60, 66, 72, 77, 82, 87, 92, 96, 100, 104, 108, 111, 114, 117, 119, 121, | |
154 | 83, 89, 95, 100, 105, 109, 113, 116, 119, 122, 124, | |
155 | 104, 109, 114, 118, 121, 124}; | |
2d7edb92 | 156 | |
1da177e4 LT |
157 | /****************************************************************************** |
158 | * Set the phy type member in the hw struct. | |
159 | * | |
160 | * hw - Struct containing variables accessed by shared code | |
161 | *****************************************************************************/ | |
406874a7 | 162 | static s32 |
1da177e4 LT |
163 | e1000_set_phy_type(struct e1000_hw *hw) |
164 | { | |
165 | DEBUGFUNC("e1000_set_phy_type"); | |
166 | ||
8fc897b0 | 167 | if (hw->mac_type == e1000_undefined) |
2d7edb92 MC |
168 | return -E1000_ERR_PHY_TYPE; |
169 | ||
8fc897b0 | 170 | switch (hw->phy_id) { |
1da177e4 LT |
171 | case M88E1000_E_PHY_ID: |
172 | case M88E1000_I_PHY_ID: | |
173 | case M88E1011_I_PHY_ID: | |
2d7edb92 | 174 | case M88E1111_I_PHY_ID: |
1da177e4 LT |
175 | hw->phy_type = e1000_phy_m88; |
176 | break; | |
177 | case IGP01E1000_I_PHY_ID: | |
8fc897b0 AK |
178 | if (hw->mac_type == e1000_82541 || |
179 | hw->mac_type == e1000_82541_rev_2 || | |
180 | hw->mac_type == e1000_82547 || | |
181 | hw->mac_type == e1000_82547_rev_2) { | |
1da177e4 LT |
182 | hw->phy_type = e1000_phy_igp; |
183 | break; | |
184 | } | |
cd94dd0b AK |
185 | case IGP03E1000_E_PHY_ID: |
186 | hw->phy_type = e1000_phy_igp_3; | |
187 | break; | |
188 | case IFE_E_PHY_ID: | |
189 | case IFE_PLUS_E_PHY_ID: | |
190 | case IFE_C_E_PHY_ID: | |
191 | hw->phy_type = e1000_phy_ife; | |
192 | break; | |
6418ecc6 JK |
193 | case GG82563_E_PHY_ID: |
194 | if (hw->mac_type == e1000_80003es2lan) { | |
195 | hw->phy_type = e1000_phy_gg82563; | |
196 | break; | |
197 | } | |
1da177e4 LT |
198 | /* Fall Through */ |
199 | default: | |
200 | /* Should never have loaded on this device */ | |
201 | hw->phy_type = e1000_phy_undefined; | |
202 | return -E1000_ERR_PHY_TYPE; | |
203 | } | |
204 | ||
205 | return E1000_SUCCESS; | |
206 | } | |
207 | ||
208 | /****************************************************************************** | |
209 | * IGP phy init script - initializes the GbE PHY | |
210 | * | |
211 | * hw - Struct containing variables accessed by shared code | |
212 | *****************************************************************************/ | |
213 | static void | |
214 | e1000_phy_init_script(struct e1000_hw *hw) | |
215 | { | |
406874a7 JP |
216 | u32 ret_val; |
217 | u16 phy_saved_data; | |
1da177e4 LT |
218 | |
219 | DEBUGFUNC("e1000_phy_init_script"); | |
220 | ||
8fc897b0 | 221 | if (hw->phy_init_script) { |
f8ec4733 | 222 | msleep(20); |
1da177e4 LT |
223 | |
224 | /* Save off the current value of register 0x2F5B to be restored at | |
225 | * the end of this routine. */ | |
226 | ret_val = e1000_read_phy_reg(hw, 0x2F5B, &phy_saved_data); | |
227 | ||
228 | /* Disabled the PHY transmitter */ | |
229 | e1000_write_phy_reg(hw, 0x2F5B, 0x0003); | |
230 | ||
f8ec4733 | 231 | msleep(20); |
1da177e4 LT |
232 | |
233 | e1000_write_phy_reg(hw,0x0000,0x0140); | |
234 | ||
f8ec4733 | 235 | msleep(5); |
1da177e4 | 236 | |
8fc897b0 | 237 | switch (hw->mac_type) { |
1da177e4 LT |
238 | case e1000_82541: |
239 | case e1000_82547: | |
240 | e1000_write_phy_reg(hw, 0x1F95, 0x0001); | |
241 | ||
242 | e1000_write_phy_reg(hw, 0x1F71, 0xBD21); | |
243 | ||
244 | e1000_write_phy_reg(hw, 0x1F79, 0x0018); | |
245 | ||
246 | e1000_write_phy_reg(hw, 0x1F30, 0x1600); | |
247 | ||
248 | e1000_write_phy_reg(hw, 0x1F31, 0x0014); | |
249 | ||
250 | e1000_write_phy_reg(hw, 0x1F32, 0x161C); | |
251 | ||
252 | e1000_write_phy_reg(hw, 0x1F94, 0x0003); | |
253 | ||
254 | e1000_write_phy_reg(hw, 0x1F96, 0x003F); | |
255 | ||
256 | e1000_write_phy_reg(hw, 0x2010, 0x0008); | |
257 | break; | |
258 | ||
259 | case e1000_82541_rev_2: | |
260 | case e1000_82547_rev_2: | |
261 | e1000_write_phy_reg(hw, 0x1F73, 0x0099); | |
262 | break; | |
263 | default: | |
264 | break; | |
265 | } | |
266 | ||
267 | e1000_write_phy_reg(hw, 0x0000, 0x3300); | |
268 | ||
f8ec4733 | 269 | msleep(20); |
1da177e4 LT |
270 | |
271 | /* Now enable the transmitter */ | |
272 | e1000_write_phy_reg(hw, 0x2F5B, phy_saved_data); | |
273 | ||
8fc897b0 | 274 | if (hw->mac_type == e1000_82547) { |
406874a7 | 275 | u16 fused, fine, coarse; |
1da177e4 LT |
276 | |
277 | /* Move to analog registers page */ | |
278 | e1000_read_phy_reg(hw, IGP01E1000_ANALOG_SPARE_FUSE_STATUS, &fused); | |
279 | ||
8fc897b0 | 280 | if (!(fused & IGP01E1000_ANALOG_SPARE_FUSE_ENABLED)) { |
1da177e4 LT |
281 | e1000_read_phy_reg(hw, IGP01E1000_ANALOG_FUSE_STATUS, &fused); |
282 | ||
283 | fine = fused & IGP01E1000_ANALOG_FUSE_FINE_MASK; | |
284 | coarse = fused & IGP01E1000_ANALOG_FUSE_COARSE_MASK; | |
285 | ||
8fc897b0 | 286 | if (coarse > IGP01E1000_ANALOG_FUSE_COARSE_THRESH) { |
1da177e4 LT |
287 | coarse -= IGP01E1000_ANALOG_FUSE_COARSE_10; |
288 | fine -= IGP01E1000_ANALOG_FUSE_FINE_1; | |
8fc897b0 | 289 | } else if (coarse == IGP01E1000_ANALOG_FUSE_COARSE_THRESH) |
1da177e4 LT |
290 | fine -= IGP01E1000_ANALOG_FUSE_FINE_10; |
291 | ||
292 | fused = (fused & IGP01E1000_ANALOG_FUSE_POLY_MASK) | | |
293 | (fine & IGP01E1000_ANALOG_FUSE_FINE_MASK) | | |
294 | (coarse & IGP01E1000_ANALOG_FUSE_COARSE_MASK); | |
295 | ||
296 | e1000_write_phy_reg(hw, IGP01E1000_ANALOG_FUSE_CONTROL, fused); | |
297 | e1000_write_phy_reg(hw, IGP01E1000_ANALOG_FUSE_BYPASS, | |
298 | IGP01E1000_ANALOG_FUSE_ENABLE_SW_CONTROL); | |
299 | } | |
300 | } | |
301 | } | |
302 | } | |
303 | ||
304 | /****************************************************************************** | |
305 | * Set the mac type member in the hw struct. | |
306 | * | |
307 | * hw - Struct containing variables accessed by shared code | |
308 | *****************************************************************************/ | |
406874a7 | 309 | s32 |
1da177e4 LT |
310 | e1000_set_mac_type(struct e1000_hw *hw) |
311 | { | |
bd2371eb JG |
312 | DEBUGFUNC("e1000_set_mac_type"); |
313 | ||
314 | switch (hw->device_id) { | |
315 | case E1000_DEV_ID_82542: | |
316 | switch (hw->revision_id) { | |
317 | case E1000_82542_2_0_REV_ID: | |
318 | hw->mac_type = e1000_82542_rev2_0; | |
319 | break; | |
320 | case E1000_82542_2_1_REV_ID: | |
321 | hw->mac_type = e1000_82542_rev2_1; | |
322 | break; | |
323 | default: | |
324 | /* Invalid 82542 revision ID */ | |
325 | return -E1000_ERR_MAC_TYPE; | |
326 | } | |
327 | break; | |
328 | case E1000_DEV_ID_82543GC_FIBER: | |
329 | case E1000_DEV_ID_82543GC_COPPER: | |
330 | hw->mac_type = e1000_82543; | |
331 | break; | |
332 | case E1000_DEV_ID_82544EI_COPPER: | |
333 | case E1000_DEV_ID_82544EI_FIBER: | |
334 | case E1000_DEV_ID_82544GC_COPPER: | |
335 | case E1000_DEV_ID_82544GC_LOM: | |
336 | hw->mac_type = e1000_82544; | |
337 | break; | |
338 | case E1000_DEV_ID_82540EM: | |
339 | case E1000_DEV_ID_82540EM_LOM: | |
340 | case E1000_DEV_ID_82540EP: | |
341 | case E1000_DEV_ID_82540EP_LOM: | |
342 | case E1000_DEV_ID_82540EP_LP: | |
343 | hw->mac_type = e1000_82540; | |
344 | break; | |
345 | case E1000_DEV_ID_82545EM_COPPER: | |
346 | case E1000_DEV_ID_82545EM_FIBER: | |
347 | hw->mac_type = e1000_82545; | |
348 | break; | |
349 | case E1000_DEV_ID_82545GM_COPPER: | |
350 | case E1000_DEV_ID_82545GM_FIBER: | |
351 | case E1000_DEV_ID_82545GM_SERDES: | |
352 | hw->mac_type = e1000_82545_rev_3; | |
353 | break; | |
354 | case E1000_DEV_ID_82546EB_COPPER: | |
355 | case E1000_DEV_ID_82546EB_FIBER: | |
356 | case E1000_DEV_ID_82546EB_QUAD_COPPER: | |
357 | hw->mac_type = e1000_82546; | |
358 | break; | |
359 | case E1000_DEV_ID_82546GB_COPPER: | |
360 | case E1000_DEV_ID_82546GB_FIBER: | |
361 | case E1000_DEV_ID_82546GB_SERDES: | |
362 | case E1000_DEV_ID_82546GB_PCIE: | |
363 | case E1000_DEV_ID_82546GB_QUAD_COPPER: | |
364 | case E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3: | |
365 | hw->mac_type = e1000_82546_rev_3; | |
366 | break; | |
367 | case E1000_DEV_ID_82541EI: | |
368 | case E1000_DEV_ID_82541EI_MOBILE: | |
369 | case E1000_DEV_ID_82541ER_LOM: | |
370 | hw->mac_type = e1000_82541; | |
371 | break; | |
372 | case E1000_DEV_ID_82541ER: | |
373 | case E1000_DEV_ID_82541GI: | |
374 | case E1000_DEV_ID_82541GI_LF: | |
375 | case E1000_DEV_ID_82541GI_MOBILE: | |
376 | hw->mac_type = e1000_82541_rev_2; | |
377 | break; | |
378 | case E1000_DEV_ID_82547EI: | |
379 | case E1000_DEV_ID_82547EI_MOBILE: | |
380 | hw->mac_type = e1000_82547; | |
381 | break; | |
382 | case E1000_DEV_ID_82547GI: | |
383 | hw->mac_type = e1000_82547_rev_2; | |
384 | break; | |
385 | case E1000_DEV_ID_82571EB_COPPER: | |
386 | case E1000_DEV_ID_82571EB_FIBER: | |
387 | case E1000_DEV_ID_82571EB_SERDES: | |
ce57a02c AK |
388 | case E1000_DEV_ID_82571EB_SERDES_DUAL: |
389 | case E1000_DEV_ID_82571EB_SERDES_QUAD: | |
bd2371eb | 390 | case E1000_DEV_ID_82571EB_QUAD_COPPER: |
f4ec7f98 | 391 | case E1000_DEV_ID_82571PT_QUAD_COPPER: |
ce57a02c | 392 | case E1000_DEV_ID_82571EB_QUAD_FIBER: |
bd2371eb JG |
393 | case E1000_DEV_ID_82571EB_QUAD_COPPER_LOWPROFILE: |
394 | hw->mac_type = e1000_82571; | |
395 | break; | |
396 | case E1000_DEV_ID_82572EI_COPPER: | |
397 | case E1000_DEV_ID_82572EI_FIBER: | |
398 | case E1000_DEV_ID_82572EI_SERDES: | |
399 | case E1000_DEV_ID_82572EI: | |
400 | hw->mac_type = e1000_82572; | |
401 | break; | |
402 | case E1000_DEV_ID_82573E: | |
403 | case E1000_DEV_ID_82573E_IAMT: | |
404 | case E1000_DEV_ID_82573L: | |
405 | hw->mac_type = e1000_82573; | |
406 | break; | |
407 | case E1000_DEV_ID_80003ES2LAN_COPPER_SPT: | |
408 | case E1000_DEV_ID_80003ES2LAN_SERDES_SPT: | |
409 | case E1000_DEV_ID_80003ES2LAN_COPPER_DPT: | |
410 | case E1000_DEV_ID_80003ES2LAN_SERDES_DPT: | |
411 | hw->mac_type = e1000_80003es2lan; | |
412 | break; | |
413 | case E1000_DEV_ID_ICH8_IGP_M_AMT: | |
414 | case E1000_DEV_ID_ICH8_IGP_AMT: | |
415 | case E1000_DEV_ID_ICH8_IGP_C: | |
416 | case E1000_DEV_ID_ICH8_IFE: | |
417 | case E1000_DEV_ID_ICH8_IFE_GT: | |
418 | case E1000_DEV_ID_ICH8_IFE_G: | |
419 | case E1000_DEV_ID_ICH8_IGP_M: | |
420 | hw->mac_type = e1000_ich8lan; | |
421 | break; | |
422 | default: | |
423 | /* Should never have loaded on this device */ | |
424 | return -E1000_ERR_MAC_TYPE; | |
425 | } | |
426 | ||
427 | switch (hw->mac_type) { | |
428 | case e1000_ich8lan: | |
c3033b01 JP |
429 | hw->swfwhw_semaphore_present = true; |
430 | hw->asf_firmware_present = true; | |
bd2371eb JG |
431 | break; |
432 | case e1000_80003es2lan: | |
c3033b01 | 433 | hw->swfw_sync_present = true; |
bd2371eb JG |
434 | /* fall through */ |
435 | case e1000_82571: | |
436 | case e1000_82572: | |
437 | case e1000_82573: | |
c3033b01 | 438 | hw->eeprom_semaphore_present = true; |
bd2371eb JG |
439 | /* fall through */ |
440 | case e1000_82541: | |
441 | case e1000_82547: | |
442 | case e1000_82541_rev_2: | |
443 | case e1000_82547_rev_2: | |
c3033b01 | 444 | hw->asf_firmware_present = true; |
bd2371eb JG |
445 | break; |
446 | default: | |
447 | break; | |
448 | } | |
449 | ||
167fb284 JG |
450 | /* The 82543 chip does not count tx_carrier_errors properly in |
451 | * FD mode | |
452 | */ | |
453 | if (hw->mac_type == e1000_82543) | |
c3033b01 | 454 | hw->bad_tx_carr_stats_fd = true; |
167fb284 | 455 | |
0fccd0e9 JG |
456 | /* capable of receiving management packets to the host */ |
457 | if (hw->mac_type >= e1000_82571) | |
c3033b01 | 458 | hw->has_manc2h = true; |
0fccd0e9 | 459 | |
bb8e3311 JG |
460 | /* In rare occasions, ESB2 systems would end up started without |
461 | * the RX unit being turned on. | |
462 | */ | |
463 | if (hw->mac_type == e1000_80003es2lan) | |
c3033b01 | 464 | hw->rx_needs_kicking = true; |
15e376b4 JG |
465 | |
466 | if (hw->mac_type > e1000_82544) | |
c3033b01 | 467 | hw->has_smbus = true; |
bb8e3311 | 468 | |
bd2371eb | 469 | return E1000_SUCCESS; |
1da177e4 LT |
470 | } |
471 | ||
472 | /***************************************************************************** | |
473 | * Set media type and TBI compatibility. | |
474 | * | |
475 | * hw - Struct containing variables accessed by shared code | |
476 | * **************************************************************************/ | |
477 | void | |
478 | e1000_set_media_type(struct e1000_hw *hw) | |
479 | { | |
406874a7 | 480 | u32 status; |
1da177e4 LT |
481 | |
482 | DEBUGFUNC("e1000_set_media_type"); | |
483 | ||
8fc897b0 | 484 | if (hw->mac_type != e1000_82543) { |
1da177e4 | 485 | /* tbi_compatibility is only valid on 82543 */ |
c3033b01 | 486 | hw->tbi_compatibility_en = false; |
1da177e4 LT |
487 | } |
488 | ||
489 | switch (hw->device_id) { | |
490 | case E1000_DEV_ID_82545GM_SERDES: | |
491 | case E1000_DEV_ID_82546GB_SERDES: | |
868d5309 | 492 | case E1000_DEV_ID_82571EB_SERDES: |
ce57a02c AK |
493 | case E1000_DEV_ID_82571EB_SERDES_DUAL: |
494 | case E1000_DEV_ID_82571EB_SERDES_QUAD: | |
868d5309 | 495 | case E1000_DEV_ID_82572EI_SERDES: |
6418ecc6 | 496 | case E1000_DEV_ID_80003ES2LAN_SERDES_DPT: |
1da177e4 LT |
497 | hw->media_type = e1000_media_type_internal_serdes; |
498 | break; | |
499 | default: | |
3893d547 MC |
500 | switch (hw->mac_type) { |
501 | case e1000_82542_rev2_0: | |
502 | case e1000_82542_rev2_1: | |
503 | hw->media_type = e1000_media_type_fiber; | |
504 | break; | |
cd94dd0b | 505 | case e1000_ich8lan: |
3893d547 MC |
506 | case e1000_82573: |
507 | /* The STATUS_TBIMODE bit is reserved or reused for the this | |
508 | * device. | |
509 | */ | |
510 | hw->media_type = e1000_media_type_copper; | |
511 | break; | |
512 | default: | |
1da177e4 | 513 | status = E1000_READ_REG(hw, STATUS); |
3893d547 | 514 | if (status & E1000_STATUS_TBIMODE) { |
1da177e4 LT |
515 | hw->media_type = e1000_media_type_fiber; |
516 | /* tbi_compatibility not valid on fiber */ | |
c3033b01 | 517 | hw->tbi_compatibility_en = false; |
1da177e4 LT |
518 | } else { |
519 | hw->media_type = e1000_media_type_copper; | |
520 | } | |
3893d547 | 521 | break; |
1da177e4 LT |
522 | } |
523 | } | |
524 | } | |
525 | ||
526 | /****************************************************************************** | |
527 | * Reset the transmit and receive units; mask and clear all interrupts. | |
528 | * | |
529 | * hw - Struct containing variables accessed by shared code | |
530 | *****************************************************************************/ | |
406874a7 | 531 | s32 |
1da177e4 LT |
532 | e1000_reset_hw(struct e1000_hw *hw) |
533 | { | |
406874a7 JP |
534 | u32 ctrl; |
535 | u32 ctrl_ext; | |
536 | u32 icr; | |
537 | u32 manc; | |
538 | u32 led_ctrl; | |
539 | u32 timeout; | |
540 | u32 extcnf_ctrl; | |
541 | s32 ret_val; | |
1da177e4 LT |
542 | |
543 | DEBUGFUNC("e1000_reset_hw"); | |
544 | ||
545 | /* For 82542 (rev 2.0), disable MWI before issuing a device reset */ | |
8fc897b0 | 546 | if (hw->mac_type == e1000_82542_rev2_0) { |
1da177e4 LT |
547 | DEBUGOUT("Disabling MWI on 82542 rev 2.0\n"); |
548 | e1000_pci_clear_mwi(hw); | |
549 | } | |
550 | ||
8fc897b0 | 551 | if (hw->bus_type == e1000_bus_type_pci_express) { |
2d7edb92 MC |
552 | /* Prevent the PCI-E bus from sticking if there is no TLP connection |
553 | * on the last TLP read/write transaction when MAC is reset. | |
554 | */ | |
8fc897b0 | 555 | if (e1000_disable_pciex_master(hw) != E1000_SUCCESS) { |
2d7edb92 MC |
556 | DEBUGOUT("PCI-E Master disable polling has failed.\n"); |
557 | } | |
558 | } | |
559 | ||
1da177e4 LT |
560 | /* Clear interrupt mask to stop board from generating interrupts */ |
561 | DEBUGOUT("Masking off all interrupts\n"); | |
562 | E1000_WRITE_REG(hw, IMC, 0xffffffff); | |
563 | ||
564 | /* Disable the Transmit and Receive units. Then delay to allow | |
565 | * any pending transactions to complete before we hit the MAC with | |
566 | * the global reset. | |
567 | */ | |
568 | E1000_WRITE_REG(hw, RCTL, 0); | |
569 | E1000_WRITE_REG(hw, TCTL, E1000_TCTL_PSP); | |
570 | E1000_WRITE_FLUSH(hw); | |
571 | ||
572 | /* The tbi_compatibility_on Flag must be cleared when Rctl is cleared. */ | |
c3033b01 | 573 | hw->tbi_compatibility_on = false; |
1da177e4 LT |
574 | |
575 | /* Delay to allow any outstanding PCI transactions to complete before | |
576 | * resetting the device | |
577 | */ | |
f8ec4733 | 578 | msleep(10); |
1da177e4 LT |
579 | |
580 | ctrl = E1000_READ_REG(hw, CTRL); | |
581 | ||
582 | /* Must reset the PHY before resetting the MAC */ | |
8fc897b0 | 583 | if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) { |
2d7edb92 | 584 | E1000_WRITE_REG(hw, CTRL, (ctrl | E1000_CTRL_PHY_RST)); |
f8ec4733 | 585 | msleep(5); |
1da177e4 LT |
586 | } |
587 | ||
2d7edb92 MC |
588 | /* Must acquire the MDIO ownership before MAC reset. |
589 | * Ownership defaults to firmware after a reset. */ | |
8fc897b0 | 590 | if (hw->mac_type == e1000_82573) { |
2d7edb92 MC |
591 | timeout = 10; |
592 | ||
593 | extcnf_ctrl = E1000_READ_REG(hw, EXTCNF_CTRL); | |
594 | extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP; | |
595 | ||
596 | do { | |
597 | E1000_WRITE_REG(hw, EXTCNF_CTRL, extcnf_ctrl); | |
598 | extcnf_ctrl = E1000_READ_REG(hw, EXTCNF_CTRL); | |
599 | ||
8fc897b0 | 600 | if (extcnf_ctrl & E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP) |
2d7edb92 MC |
601 | break; |
602 | else | |
603 | extcnf_ctrl |= E1000_EXTCNF_CTRL_MDIO_SW_OWNERSHIP; | |
604 | ||
f8ec4733 | 605 | msleep(2); |
2d7edb92 | 606 | timeout--; |
8fc897b0 | 607 | } while (timeout); |
2d7edb92 MC |
608 | } |
609 | ||
cd94dd0b AK |
610 | /* Workaround for ICH8 bit corruption issue in FIFO memory */ |
611 | if (hw->mac_type == e1000_ich8lan) { | |
612 | /* Set Tx and Rx buffer allocation to 8k apiece. */ | |
613 | E1000_WRITE_REG(hw, PBA, E1000_PBA_8K); | |
614 | /* Set Packet Buffer Size to 16k. */ | |
615 | E1000_WRITE_REG(hw, PBS, E1000_PBS_16K); | |
616 | } | |
617 | ||
1da177e4 LT |
618 | /* Issue a global reset to the MAC. This will reset the chip's |
619 | * transmit, receive, DMA, and link units. It will not effect | |
620 | * the current PCI configuration. The global reset bit is self- | |
621 | * clearing, and should clear within a microsecond. | |
622 | */ | |
623 | DEBUGOUT("Issuing a global reset to MAC\n"); | |
624 | ||
8fc897b0 | 625 | switch (hw->mac_type) { |
1da177e4 LT |
626 | case e1000_82544: |
627 | case e1000_82540: | |
628 | case e1000_82545: | |
629 | case e1000_82546: | |
630 | case e1000_82541: | |
631 | case e1000_82541_rev_2: | |
632 | /* These controllers can't ack the 64-bit write when issuing the | |
633 | * reset, so use IO-mapping as a workaround to issue the reset */ | |
634 | E1000_WRITE_REG_IO(hw, CTRL, (ctrl | E1000_CTRL_RST)); | |
635 | break; | |
636 | case e1000_82545_rev_3: | |
637 | case e1000_82546_rev_3: | |
638 | /* Reset is performed on a shadow of the control register */ | |
639 | E1000_WRITE_REG(hw, CTRL_DUP, (ctrl | E1000_CTRL_RST)); | |
640 | break; | |
cd94dd0b AK |
641 | case e1000_ich8lan: |
642 | if (!hw->phy_reset_disable && | |
643 | e1000_check_phy_reset_block(hw) == E1000_SUCCESS) { | |
644 | /* e1000_ich8lan PHY HW reset requires MAC CORE reset | |
645 | * at the same time to make sure the interface between | |
646 | * MAC and the external PHY is reset. | |
647 | */ | |
648 | ctrl |= E1000_CTRL_PHY_RST; | |
649 | } | |
650 | ||
651 | e1000_get_software_flag(hw); | |
652 | E1000_WRITE_REG(hw, CTRL, (ctrl | E1000_CTRL_RST)); | |
f8ec4733 | 653 | msleep(5); |
cd94dd0b | 654 | break; |
1da177e4 LT |
655 | default: |
656 | E1000_WRITE_REG(hw, CTRL, (ctrl | E1000_CTRL_RST)); | |
657 | break; | |
658 | } | |
659 | ||
660 | /* After MAC reset, force reload of EEPROM to restore power-on settings to | |
661 | * device. Later controllers reload the EEPROM automatically, so just wait | |
662 | * for reload to complete. | |
663 | */ | |
8fc897b0 | 664 | switch (hw->mac_type) { |
1da177e4 LT |
665 | case e1000_82542_rev2_0: |
666 | case e1000_82542_rev2_1: | |
667 | case e1000_82543: | |
668 | case e1000_82544: | |
669 | /* Wait for reset to complete */ | |
670 | udelay(10); | |
671 | ctrl_ext = E1000_READ_REG(hw, CTRL_EXT); | |
672 | ctrl_ext |= E1000_CTRL_EXT_EE_RST; | |
673 | E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext); | |
674 | E1000_WRITE_FLUSH(hw); | |
675 | /* Wait for EEPROM reload */ | |
f8ec4733 | 676 | msleep(2); |
1da177e4 LT |
677 | break; |
678 | case e1000_82541: | |
679 | case e1000_82541_rev_2: | |
680 | case e1000_82547: | |
681 | case e1000_82547_rev_2: | |
682 | /* Wait for EEPROM reload */ | |
f8ec4733 | 683 | msleep(20); |
1da177e4 | 684 | break; |
2d7edb92 | 685 | case e1000_82573: |
c3033b01 | 686 | if (!e1000_is_onboard_nvm_eeprom(hw)) { |
fd803241 JK |
687 | udelay(10); |
688 | ctrl_ext = E1000_READ_REG(hw, CTRL_EXT); | |
689 | ctrl_ext |= E1000_CTRL_EXT_EE_RST; | |
690 | E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext); | |
691 | E1000_WRITE_FLUSH(hw); | |
692 | } | |
2d7edb92 | 693 | /* fall through */ |
2a88c173 JK |
694 | default: |
695 | /* Auto read done will delay 5ms or poll based on mac type */ | |
2d7edb92 | 696 | ret_val = e1000_get_auto_rd_done(hw); |
8fc897b0 | 697 | if (ret_val) |
2d7edb92 MC |
698 | return ret_val; |
699 | break; | |
1da177e4 LT |
700 | } |
701 | ||
702 | /* Disable HW ARPs on ASF enabled adapters */ | |
8fc897b0 | 703 | if (hw->mac_type >= e1000_82540 && hw->mac_type <= e1000_82547_rev_2) { |
1da177e4 LT |
704 | manc = E1000_READ_REG(hw, MANC); |
705 | manc &= ~(E1000_MANC_ARP_EN); | |
706 | E1000_WRITE_REG(hw, MANC, manc); | |
707 | } | |
708 | ||
8fc897b0 | 709 | if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) { |
1da177e4 LT |
710 | e1000_phy_init_script(hw); |
711 | ||
712 | /* Configure activity LED after PHY reset */ | |
713 | led_ctrl = E1000_READ_REG(hw, LEDCTL); | |
714 | led_ctrl &= IGP_ACTIVITY_LED_MASK; | |
715 | led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE); | |
716 | E1000_WRITE_REG(hw, LEDCTL, led_ctrl); | |
717 | } | |
718 | ||
719 | /* Clear interrupt mask to stop board from generating interrupts */ | |
720 | DEBUGOUT("Masking off all interrupts\n"); | |
721 | E1000_WRITE_REG(hw, IMC, 0xffffffff); | |
722 | ||
723 | /* Clear any pending interrupt events. */ | |
724 | icr = E1000_READ_REG(hw, ICR); | |
725 | ||
726 | /* If MWI was previously enabled, reenable it. */ | |
8fc897b0 | 727 | if (hw->mac_type == e1000_82542_rev2_0) { |
f8ec4733 | 728 | if (hw->pci_cmd_word & PCI_COMMAND_INVALIDATE) |
1da177e4 LT |
729 | e1000_pci_set_mwi(hw); |
730 | } | |
731 | ||
cd94dd0b | 732 | if (hw->mac_type == e1000_ich8lan) { |
406874a7 | 733 | u32 kab = E1000_READ_REG(hw, KABGTXD); |
cd94dd0b AK |
734 | kab |= E1000_KABGTXD_BGSQLBIAS; |
735 | E1000_WRITE_REG(hw, KABGTXD, kab); | |
736 | } | |
737 | ||
1da177e4 LT |
738 | return E1000_SUCCESS; |
739 | } | |
740 | ||
09ae3e88 JK |
741 | /****************************************************************************** |
742 | * | |
743 | * Initialize a number of hardware-dependent bits | |
744 | * | |
745 | * hw: Struct containing variables accessed by shared code | |
746 | * | |
747 | * This function contains hardware limitation workarounds for PCI-E adapters | |
748 | * | |
749 | *****************************************************************************/ | |
750 | static void | |
751 | e1000_initialize_hardware_bits(struct e1000_hw *hw) | |
752 | { | |
753 | if ((hw->mac_type >= e1000_82571) && (!hw->initialize_hw_bits_disable)) { | |
754 | /* Settings common to all PCI-express silicon */ | |
406874a7 JP |
755 | u32 reg_ctrl, reg_ctrl_ext; |
756 | u32 reg_tarc0, reg_tarc1; | |
757 | u32 reg_tctl; | |
758 | u32 reg_txdctl, reg_txdctl1; | |
09ae3e88 JK |
759 | |
760 | /* link autonegotiation/sync workarounds */ | |
761 | reg_tarc0 = E1000_READ_REG(hw, TARC0); | |
762 | reg_tarc0 &= ~((1 << 30)|(1 << 29)|(1 << 28)|(1 << 27)); | |
763 | ||
764 | /* Enable not-done TX descriptor counting */ | |
765 | reg_txdctl = E1000_READ_REG(hw, TXDCTL); | |
766 | reg_txdctl |= E1000_TXDCTL_COUNT_DESC; | |
767 | E1000_WRITE_REG(hw, TXDCTL, reg_txdctl); | |
768 | reg_txdctl1 = E1000_READ_REG(hw, TXDCTL1); | |
769 | reg_txdctl1 |= E1000_TXDCTL_COUNT_DESC; | |
770 | E1000_WRITE_REG(hw, TXDCTL1, reg_txdctl1); | |
771 | ||
772 | switch (hw->mac_type) { | |
773 | case e1000_82571: | |
774 | case e1000_82572: | |
775 | /* Clear PHY TX compatible mode bits */ | |
776 | reg_tarc1 = E1000_READ_REG(hw, TARC1); | |
777 | reg_tarc1 &= ~((1 << 30)|(1 << 29)); | |
778 | ||
779 | /* link autonegotiation/sync workarounds */ | |
780 | reg_tarc0 |= ((1 << 26)|(1 << 25)|(1 << 24)|(1 << 23)); | |
781 | ||
782 | /* TX ring control fixes */ | |
783 | reg_tarc1 |= ((1 << 26)|(1 << 25)|(1 << 24)); | |
784 | ||
785 | /* Multiple read bit is reversed polarity */ | |
786 | reg_tctl = E1000_READ_REG(hw, TCTL); | |
787 | if (reg_tctl & E1000_TCTL_MULR) | |
788 | reg_tarc1 &= ~(1 << 28); | |
789 | else | |
790 | reg_tarc1 |= (1 << 28); | |
791 | ||
792 | E1000_WRITE_REG(hw, TARC1, reg_tarc1); | |
793 | break; | |
794 | case e1000_82573: | |
795 | reg_ctrl_ext = E1000_READ_REG(hw, CTRL_EXT); | |
796 | reg_ctrl_ext &= ~(1 << 23); | |
797 | reg_ctrl_ext |= (1 << 22); | |
798 | ||
799 | /* TX byte count fix */ | |
800 | reg_ctrl = E1000_READ_REG(hw, CTRL); | |
801 | reg_ctrl &= ~(1 << 29); | |
802 | ||
803 | E1000_WRITE_REG(hw, CTRL_EXT, reg_ctrl_ext); | |
804 | E1000_WRITE_REG(hw, CTRL, reg_ctrl); | |
805 | break; | |
806 | case e1000_80003es2lan: | |
807 | /* improve small packet performace for fiber/serdes */ | |
808 | if ((hw->media_type == e1000_media_type_fiber) || | |
809 | (hw->media_type == e1000_media_type_internal_serdes)) { | |
810 | reg_tarc0 &= ~(1 << 20); | |
811 | } | |
812 | ||
813 | /* Multiple read bit is reversed polarity */ | |
814 | reg_tctl = E1000_READ_REG(hw, TCTL); | |
815 | reg_tarc1 = E1000_READ_REG(hw, TARC1); | |
816 | if (reg_tctl & E1000_TCTL_MULR) | |
817 | reg_tarc1 &= ~(1 << 28); | |
818 | else | |
819 | reg_tarc1 |= (1 << 28); | |
820 | ||
821 | E1000_WRITE_REG(hw, TARC1, reg_tarc1); | |
822 | break; | |
823 | case e1000_ich8lan: | |
824 | /* Reduce concurrent DMA requests to 3 from 4 */ | |
825 | if ((hw->revision_id < 3) || | |
826 | ((hw->device_id != E1000_DEV_ID_ICH8_IGP_M_AMT) && | |
827 | (hw->device_id != E1000_DEV_ID_ICH8_IGP_M))) | |
828 | reg_tarc0 |= ((1 << 29)|(1 << 28)); | |
829 | ||
830 | reg_ctrl_ext = E1000_READ_REG(hw, CTRL_EXT); | |
831 | reg_ctrl_ext |= (1 << 22); | |
832 | E1000_WRITE_REG(hw, CTRL_EXT, reg_ctrl_ext); | |
833 | ||
834 | /* workaround TX hang with TSO=on */ | |
835 | reg_tarc0 |= ((1 << 27)|(1 << 26)|(1 << 24)|(1 << 23)); | |
836 | ||
837 | /* Multiple read bit is reversed polarity */ | |
838 | reg_tctl = E1000_READ_REG(hw, TCTL); | |
839 | reg_tarc1 = E1000_READ_REG(hw, TARC1); | |
840 | if (reg_tctl & E1000_TCTL_MULR) | |
841 | reg_tarc1 &= ~(1 << 28); | |
842 | else | |
843 | reg_tarc1 |= (1 << 28); | |
844 | ||
845 | /* workaround TX hang with TSO=on */ | |
846 | reg_tarc1 |= ((1 << 30)|(1 << 26)|(1 << 24)); | |
847 | ||
848 | E1000_WRITE_REG(hw, TARC1, reg_tarc1); | |
849 | break; | |
850 | default: | |
851 | break; | |
852 | } | |
853 | ||
854 | E1000_WRITE_REG(hw, TARC0, reg_tarc0); | |
855 | } | |
856 | } | |
857 | ||
1da177e4 LT |
858 | /****************************************************************************** |
859 | * Performs basic configuration of the adapter. | |
860 | * | |
861 | * hw - Struct containing variables accessed by shared code | |
862 | * | |
863 | * Assumes that the controller has previously been reset and is in a | |
864 | * post-reset uninitialized state. Initializes the receive address registers, | |
865 | * multicast table, and VLAN filter table. Calls routines to setup link | |
866 | * configuration and flow control settings. Clears all on-chip counters. Leaves | |
867 | * the transmit and receive units disabled and uninitialized. | |
868 | *****************************************************************************/ | |
406874a7 | 869 | s32 |
1da177e4 LT |
870 | e1000_init_hw(struct e1000_hw *hw) |
871 | { | |
406874a7 JP |
872 | u32 ctrl; |
873 | u32 i; | |
874 | s32 ret_val; | |
875 | u32 mta_size; | |
876 | u32 reg_data; | |
877 | u32 ctrl_ext; | |
2d7edb92 | 878 | |
1da177e4 LT |
879 | DEBUGFUNC("e1000_init_hw"); |
880 | ||
7820d428 | 881 | /* force full DMA clock frequency for 10/100 on ICH8 A0-B0 */ |
09ae3e88 JK |
882 | if ((hw->mac_type == e1000_ich8lan) && |
883 | ((hw->revision_id < 3) || | |
884 | ((hw->device_id != E1000_DEV_ID_ICH8_IGP_M_AMT) && | |
885 | (hw->device_id != E1000_DEV_ID_ICH8_IGP_M)))) { | |
886 | reg_data = E1000_READ_REG(hw, STATUS); | |
887 | reg_data &= ~0x80000000; | |
888 | E1000_WRITE_REG(hw, STATUS, reg_data); | |
7820d428 JK |
889 | } |
890 | ||
1da177e4 LT |
891 | /* Initialize Identification LED */ |
892 | ret_val = e1000_id_led_init(hw); | |
8fc897b0 | 893 | if (ret_val) { |
1da177e4 LT |
894 | DEBUGOUT("Error Initializing Identification LED\n"); |
895 | return ret_val; | |
896 | } | |
897 | ||
898 | /* Set the media type and TBI compatibility */ | |
899 | e1000_set_media_type(hw); | |
900 | ||
09ae3e88 JK |
901 | /* Must be called after e1000_set_media_type because media_type is used */ |
902 | e1000_initialize_hardware_bits(hw); | |
903 | ||
1da177e4 LT |
904 | /* Disabling VLAN filtering. */ |
905 | DEBUGOUT("Initializing the IEEE VLAN\n"); | |
cd94dd0b AK |
906 | /* VET hardcoded to standard value and VFTA removed in ICH8 LAN */ |
907 | if (hw->mac_type != e1000_ich8lan) { | |
908 | if (hw->mac_type < e1000_82545_rev_3) | |
909 | E1000_WRITE_REG(hw, VET, 0); | |
910 | e1000_clear_vfta(hw); | |
911 | } | |
1da177e4 LT |
912 | |
913 | /* For 82542 (rev 2.0), disable MWI and put the receiver into reset */ | |
8fc897b0 | 914 | if (hw->mac_type == e1000_82542_rev2_0) { |
1da177e4 LT |
915 | DEBUGOUT("Disabling MWI on 82542 rev 2.0\n"); |
916 | e1000_pci_clear_mwi(hw); | |
917 | E1000_WRITE_REG(hw, RCTL, E1000_RCTL_RST); | |
918 | E1000_WRITE_FLUSH(hw); | |
f8ec4733 | 919 | msleep(5); |
1da177e4 LT |
920 | } |
921 | ||
922 | /* Setup the receive address. This involves initializing all of the Receive | |
923 | * Address Registers (RARs 0 - 15). | |
924 | */ | |
925 | e1000_init_rx_addrs(hw); | |
926 | ||
927 | /* For 82542 (rev 2.0), take the receiver out of reset and enable MWI */ | |
8fc897b0 | 928 | if (hw->mac_type == e1000_82542_rev2_0) { |
1da177e4 LT |
929 | E1000_WRITE_REG(hw, RCTL, 0); |
930 | E1000_WRITE_FLUSH(hw); | |
f8ec4733 JG |
931 | msleep(1); |
932 | if (hw->pci_cmd_word & PCI_COMMAND_INVALIDATE) | |
1da177e4 LT |
933 | e1000_pci_set_mwi(hw); |
934 | } | |
935 | ||
936 | /* Zero out the Multicast HASH table */ | |
937 | DEBUGOUT("Zeroing the MTA\n"); | |
2d7edb92 | 938 | mta_size = E1000_MC_TBL_SIZE; |
cd94dd0b AK |
939 | if (hw->mac_type == e1000_ich8lan) |
940 | mta_size = E1000_MC_TBL_SIZE_ICH8LAN; | |
8fc897b0 | 941 | for (i = 0; i < mta_size; i++) { |
1da177e4 | 942 | E1000_WRITE_REG_ARRAY(hw, MTA, i, 0); |
4ca213a6 AK |
943 | /* use write flush to prevent Memory Write Block (MWB) from |
944 | * occuring when accessing our register space */ | |
945 | E1000_WRITE_FLUSH(hw); | |
946 | } | |
1da177e4 LT |
947 | |
948 | /* Set the PCI priority bit correctly in the CTRL register. This | |
949 | * determines if the adapter gives priority to receives, or if it | |
2d7edb92 MC |
950 | * gives equal priority to transmits and receives. Valid only on |
951 | * 82542 and 82543 silicon. | |
1da177e4 | 952 | */ |
8fc897b0 | 953 | if (hw->dma_fairness && hw->mac_type <= e1000_82543) { |
1da177e4 LT |
954 | ctrl = E1000_READ_REG(hw, CTRL); |
955 | E1000_WRITE_REG(hw, CTRL, ctrl | E1000_CTRL_PRIOR); | |
956 | } | |
957 | ||
8fc897b0 | 958 | switch (hw->mac_type) { |
1da177e4 LT |
959 | case e1000_82545_rev_3: |
960 | case e1000_82546_rev_3: | |
961 | break; | |
962 | default: | |
963 | /* Workaround for PCI-X problem when BIOS sets MMRBC incorrectly. */ | |
007755eb PO |
964 | if (hw->bus_type == e1000_bus_type_pcix && e1000_pcix_get_mmrbc(hw) > 2048) |
965 | e1000_pcix_set_mmrbc(hw, 2048); | |
966 | break; | |
1da177e4 LT |
967 | } |
968 | ||
cd94dd0b AK |
969 | /* More time needed for PHY to initialize */ |
970 | if (hw->mac_type == e1000_ich8lan) | |
f8ec4733 | 971 | msleep(15); |
cd94dd0b | 972 | |
1da177e4 LT |
973 | /* Call a subroutine to configure the link and setup flow control. */ |
974 | ret_val = e1000_setup_link(hw); | |
975 | ||
976 | /* Set the transmit descriptor write-back policy */ | |
8fc897b0 | 977 | if (hw->mac_type > e1000_82544) { |
1da177e4 LT |
978 | ctrl = E1000_READ_REG(hw, TXDCTL); |
979 | ctrl = (ctrl & ~E1000_TXDCTL_WTHRESH) | E1000_TXDCTL_FULL_TX_DESC_WB; | |
980 | E1000_WRITE_REG(hw, TXDCTL, ctrl); | |
981 | } | |
982 | ||
2d7edb92 | 983 | if (hw->mac_type == e1000_82573) { |
76c224bc | 984 | e1000_enable_tx_pkt_filtering(hw); |
2d7edb92 MC |
985 | } |
986 | ||
868d5309 MC |
987 | switch (hw->mac_type) { |
988 | default: | |
989 | break; | |
6418ecc6 JK |
990 | case e1000_80003es2lan: |
991 | /* Enable retransmit on late collisions */ | |
992 | reg_data = E1000_READ_REG(hw, TCTL); | |
993 | reg_data |= E1000_TCTL_RTLC; | |
994 | E1000_WRITE_REG(hw, TCTL, reg_data); | |
995 | ||
996 | /* Configure Gigabit Carry Extend Padding */ | |
997 | reg_data = E1000_READ_REG(hw, TCTL_EXT); | |
998 | reg_data &= ~E1000_TCTL_EXT_GCEX_MASK; | |
999 | reg_data |= DEFAULT_80003ES2LAN_TCTL_EXT_GCEX; | |
1000 | E1000_WRITE_REG(hw, TCTL_EXT, reg_data); | |
1001 | ||
1002 | /* Configure Transmit Inter-Packet Gap */ | |
1003 | reg_data = E1000_READ_REG(hw, TIPG); | |
1004 | reg_data &= ~E1000_TIPG_IPGT_MASK; | |
1005 | reg_data |= DEFAULT_80003ES2LAN_TIPG_IPGT_1000; | |
1006 | E1000_WRITE_REG(hw, TIPG, reg_data); | |
1007 | ||
1008 | reg_data = E1000_READ_REG_ARRAY(hw, FFLT, 0x0001); | |
1009 | reg_data &= ~0x00100000; | |
1010 | E1000_WRITE_REG_ARRAY(hw, FFLT, 0x0001, reg_data); | |
1011 | /* Fall through */ | |
868d5309 | 1012 | case e1000_82571: |
a7990ba6 | 1013 | case e1000_82572: |
cd94dd0b | 1014 | case e1000_ich8lan: |
868d5309 | 1015 | ctrl = E1000_READ_REG(hw, TXDCTL1); |
6418ecc6 | 1016 | ctrl = (ctrl & ~E1000_TXDCTL_WTHRESH) | E1000_TXDCTL_FULL_TX_DESC_WB; |
868d5309 MC |
1017 | E1000_WRITE_REG(hw, TXDCTL1, ctrl); |
1018 | break; | |
1019 | } | |
1020 | ||
1021 | ||
868d5309 | 1022 | if (hw->mac_type == e1000_82573) { |
406874a7 | 1023 | u32 gcr = E1000_READ_REG(hw, GCR); |
868d5309 MC |
1024 | gcr |= E1000_GCR_L1_ACT_WITHOUT_L0S_RX; |
1025 | E1000_WRITE_REG(hw, GCR, gcr); | |
1026 | } | |
2d7edb92 | 1027 | |
1da177e4 LT |
1028 | /* Clear all of the statistics registers (clear on read). It is |
1029 | * important that we do this after we have tried to establish link | |
1030 | * because the symbol error count will increment wildly if there | |
1031 | * is no link. | |
1032 | */ | |
1033 | e1000_clear_hw_cntrs(hw); | |
1034 | ||
cd94dd0b AK |
1035 | /* ICH8 No-snoop bits are opposite polarity. |
1036 | * Set to snoop by default after reset. */ | |
1037 | if (hw->mac_type == e1000_ich8lan) | |
1038 | e1000_set_pci_ex_no_snoop(hw, PCI_EX_82566_SNOOP_ALL); | |
1039 | ||
b7ee49db JK |
1040 | if (hw->device_id == E1000_DEV_ID_82546GB_QUAD_COPPER || |
1041 | hw->device_id == E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3) { | |
1042 | ctrl_ext = E1000_READ_REG(hw, CTRL_EXT); | |
1043 | /* Relaxed ordering must be disabled to avoid a parity | |
1044 | * error crash in a PCI slot. */ | |
1045 | ctrl_ext |= E1000_CTRL_EXT_RO_DIS; | |
1046 | E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext); | |
1047 | } | |
1048 | ||
1da177e4 LT |
1049 | return ret_val; |
1050 | } | |
1051 | ||
1052 | /****************************************************************************** | |
1053 | * Adjust SERDES output amplitude based on EEPROM setting. | |
1054 | * | |
1055 | * hw - Struct containing variables accessed by shared code. | |
1056 | *****************************************************************************/ | |
406874a7 | 1057 | static s32 |
1da177e4 LT |
1058 | e1000_adjust_serdes_amplitude(struct e1000_hw *hw) |
1059 | { | |
406874a7 JP |
1060 | u16 eeprom_data; |
1061 | s32 ret_val; | |
1da177e4 LT |
1062 | |
1063 | DEBUGFUNC("e1000_adjust_serdes_amplitude"); | |
1064 | ||
8fc897b0 | 1065 | if (hw->media_type != e1000_media_type_internal_serdes) |
1da177e4 LT |
1066 | return E1000_SUCCESS; |
1067 | ||
8fc897b0 | 1068 | switch (hw->mac_type) { |
1da177e4 LT |
1069 | case e1000_82545_rev_3: |
1070 | case e1000_82546_rev_3: | |
1071 | break; | |
1072 | default: | |
1073 | return E1000_SUCCESS; | |
1074 | } | |
1075 | ||
1076 | ret_val = e1000_read_eeprom(hw, EEPROM_SERDES_AMPLITUDE, 1, &eeprom_data); | |
1077 | if (ret_val) { | |
1078 | return ret_val; | |
1079 | } | |
1080 | ||
8fc897b0 | 1081 | if (eeprom_data != EEPROM_RESERVED_WORD) { |
1da177e4 | 1082 | /* Adjust SERDES output amplitude only. */ |
76c224bc | 1083 | eeprom_data &= EEPROM_SERDES_AMPLITUDE_MASK; |
1da177e4 | 1084 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_EXT_CTRL, eeprom_data); |
8fc897b0 | 1085 | if (ret_val) |
1da177e4 LT |
1086 | return ret_val; |
1087 | } | |
1088 | ||
1089 | return E1000_SUCCESS; | |
1090 | } | |
1091 | ||
1092 | /****************************************************************************** | |
1093 | * Configures flow control and link settings. | |
1094 | * | |
1095 | * hw - Struct containing variables accessed by shared code | |
1096 | * | |
1097 | * Determines which flow control settings to use. Calls the apropriate media- | |
1098 | * specific link configuration function. Configures the flow control settings. | |
1099 | * Assuming the adapter has a valid link partner, a valid link should be | |
1100 | * established. Assumes the hardware has previously been reset and the | |
1101 | * transmitter and receiver are not enabled. | |
1102 | *****************************************************************************/ | |
406874a7 | 1103 | s32 |
1da177e4 LT |
1104 | e1000_setup_link(struct e1000_hw *hw) |
1105 | { | |
406874a7 JP |
1106 | u32 ctrl_ext; |
1107 | s32 ret_val; | |
1108 | u16 eeprom_data; | |
1da177e4 LT |
1109 | |
1110 | DEBUGFUNC("e1000_setup_link"); | |
1111 | ||
526f9957 JK |
1112 | /* In the case of the phy reset being blocked, we already have a link. |
1113 | * We do not have to set it up again. */ | |
1114 | if (e1000_check_phy_reset_block(hw)) | |
1115 | return E1000_SUCCESS; | |
1116 | ||
1da177e4 LT |
1117 | /* Read and store word 0x0F of the EEPROM. This word contains bits |
1118 | * that determine the hardware's default PAUSE (flow control) mode, | |
1119 | * a bit that determines whether the HW defaults to enabling or | |
1120 | * disabling auto-negotiation, and the direction of the | |
1121 | * SW defined pins. If there is no SW over-ride of the flow | |
1122 | * control setting, then the variable hw->fc will | |
1123 | * be initialized based on a value in the EEPROM. | |
1124 | */ | |
11241b10 | 1125 | if (hw->fc == E1000_FC_DEFAULT) { |
fd803241 | 1126 | switch (hw->mac_type) { |
cd94dd0b | 1127 | case e1000_ich8lan: |
fd803241 | 1128 | case e1000_82573: |
11241b10 | 1129 | hw->fc = E1000_FC_FULL; |
fd803241 JK |
1130 | break; |
1131 | default: | |
1132 | ret_val = e1000_read_eeprom(hw, EEPROM_INIT_CONTROL2_REG, | |
1133 | 1, &eeprom_data); | |
1134 | if (ret_val) { | |
1135 | DEBUGOUT("EEPROM Read Error\n"); | |
1136 | return -E1000_ERR_EEPROM; | |
1137 | } | |
1138 | if ((eeprom_data & EEPROM_WORD0F_PAUSE_MASK) == 0) | |
11241b10 | 1139 | hw->fc = E1000_FC_NONE; |
fd803241 JK |
1140 | else if ((eeprom_data & EEPROM_WORD0F_PAUSE_MASK) == |
1141 | EEPROM_WORD0F_ASM_DIR) | |
11241b10 | 1142 | hw->fc = E1000_FC_TX_PAUSE; |
fd803241 | 1143 | else |
11241b10 | 1144 | hw->fc = E1000_FC_FULL; |
fd803241 JK |
1145 | break; |
1146 | } | |
1da177e4 LT |
1147 | } |
1148 | ||
1149 | /* We want to save off the original Flow Control configuration just | |
1150 | * in case we get disconnected and then reconnected into a different | |
1151 | * hub or switch with different Flow Control capabilities. | |
1152 | */ | |
8fc897b0 | 1153 | if (hw->mac_type == e1000_82542_rev2_0) |
11241b10 | 1154 | hw->fc &= (~E1000_FC_TX_PAUSE); |
1da177e4 | 1155 | |
8fc897b0 | 1156 | if ((hw->mac_type < e1000_82543) && (hw->report_tx_early == 1)) |
11241b10 | 1157 | hw->fc &= (~E1000_FC_RX_PAUSE); |
1da177e4 LT |
1158 | |
1159 | hw->original_fc = hw->fc; | |
1160 | ||
1161 | DEBUGOUT1("After fix-ups FlowControl is now = %x\n", hw->fc); | |
1162 | ||
1163 | /* Take the 4 bits from EEPROM word 0x0F that determine the initial | |
1164 | * polarity value for the SW controlled pins, and setup the | |
1165 | * Extended Device Control reg with that info. | |
1166 | * This is needed because one of the SW controlled pins is used for | |
1167 | * signal detection. So this should be done before e1000_setup_pcs_link() | |
1168 | * or e1000_phy_setup() is called. | |
1169 | */ | |
497fce5e | 1170 | if (hw->mac_type == e1000_82543) { |
8fc897b0 AK |
1171 | ret_val = e1000_read_eeprom(hw, EEPROM_INIT_CONTROL2_REG, |
1172 | 1, &eeprom_data); | |
1173 | if (ret_val) { | |
1174 | DEBUGOUT("EEPROM Read Error\n"); | |
1175 | return -E1000_ERR_EEPROM; | |
1176 | } | |
1da177e4 LT |
1177 | ctrl_ext = ((eeprom_data & EEPROM_WORD0F_SWPDIO_EXT) << |
1178 | SWDPIO__EXT_SHIFT); | |
1179 | E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext); | |
1180 | } | |
1181 | ||
1182 | /* Call the necessary subroutine to configure the link. */ | |
1183 | ret_val = (hw->media_type == e1000_media_type_copper) ? | |
1184 | e1000_setup_copper_link(hw) : | |
1185 | e1000_setup_fiber_serdes_link(hw); | |
1186 | ||
1187 | /* Initialize the flow control address, type, and PAUSE timer | |
1188 | * registers to their default values. This is done even if flow | |
1189 | * control is disabled, because it does not hurt anything to | |
1190 | * initialize these registers. | |
1191 | */ | |
1192 | DEBUGOUT("Initializing the Flow Control address, type and timer regs\n"); | |
1193 | ||
cd94dd0b AK |
1194 | /* FCAL/H and FCT are hardcoded to standard values in e1000_ich8lan. */ |
1195 | if (hw->mac_type != e1000_ich8lan) { | |
1196 | E1000_WRITE_REG(hw, FCT, FLOW_CONTROL_TYPE); | |
1197 | E1000_WRITE_REG(hw, FCAH, FLOW_CONTROL_ADDRESS_HIGH); | |
1198 | E1000_WRITE_REG(hw, FCAL, FLOW_CONTROL_ADDRESS_LOW); | |
1199 | } | |
2d7edb92 | 1200 | |
1da177e4 LT |
1201 | E1000_WRITE_REG(hw, FCTTV, hw->fc_pause_time); |
1202 | ||
1203 | /* Set the flow control receive threshold registers. Normally, | |
1204 | * these registers will be set to a default threshold that may be | |
1205 | * adjusted later by the driver's runtime code. However, if the | |
1206 | * ability to transmit pause frames in not enabled, then these | |
1207 | * registers will be set to 0. | |
1208 | */ | |
11241b10 | 1209 | if (!(hw->fc & E1000_FC_TX_PAUSE)) { |
1da177e4 LT |
1210 | E1000_WRITE_REG(hw, FCRTL, 0); |
1211 | E1000_WRITE_REG(hw, FCRTH, 0); | |
1212 | } else { | |
1213 | /* We need to set up the Receive Threshold high and low water marks | |
1214 | * as well as (optionally) enabling the transmission of XON frames. | |
1215 | */ | |
8fc897b0 | 1216 | if (hw->fc_send_xon) { |
1da177e4 LT |
1217 | E1000_WRITE_REG(hw, FCRTL, (hw->fc_low_water | E1000_FCRTL_XONE)); |
1218 | E1000_WRITE_REG(hw, FCRTH, hw->fc_high_water); | |
1219 | } else { | |
1220 | E1000_WRITE_REG(hw, FCRTL, hw->fc_low_water); | |
1221 | E1000_WRITE_REG(hw, FCRTH, hw->fc_high_water); | |
1222 | } | |
1223 | } | |
1224 | return ret_val; | |
1225 | } | |
1226 | ||
1227 | /****************************************************************************** | |
1228 | * Sets up link for a fiber based or serdes based adapter | |
1229 | * | |
1230 | * hw - Struct containing variables accessed by shared code | |
1231 | * | |
1232 | * Manipulates Physical Coding Sublayer functions in order to configure | |
1233 | * link. Assumes the hardware has been previously reset and the transmitter | |
1234 | * and receiver are not enabled. | |
1235 | *****************************************************************************/ | |
406874a7 | 1236 | static s32 |
1da177e4 LT |
1237 | e1000_setup_fiber_serdes_link(struct e1000_hw *hw) |
1238 | { | |
406874a7 JP |
1239 | u32 ctrl; |
1240 | u32 status; | |
1241 | u32 txcw = 0; | |
1242 | u32 i; | |
1243 | u32 signal = 0; | |
1244 | s32 ret_val; | |
1da177e4 LT |
1245 | |
1246 | DEBUGFUNC("e1000_setup_fiber_serdes_link"); | |
1247 | ||
868d5309 MC |
1248 | /* On 82571 and 82572 Fiber connections, SerDes loopback mode persists |
1249 | * until explicitly turned off or a power cycle is performed. A read to | |
1250 | * the register does not indicate its status. Therefore, we ensure | |
1251 | * loopback mode is disabled during initialization. | |
1252 | */ | |
1253 | if (hw->mac_type == e1000_82571 || hw->mac_type == e1000_82572) | |
1254 | E1000_WRITE_REG(hw, SCTL, E1000_DISABLE_SERDES_LOOPBACK); | |
1255 | ||
09ae3e88 | 1256 | /* On adapters with a MAC newer than 82544, SWDP 1 will be |
1da177e4 LT |
1257 | * set when the optics detect a signal. On older adapters, it will be |
1258 | * cleared when there is a signal. This applies to fiber media only. | |
09ae3e88 JK |
1259 | * If we're on serdes media, adjust the output amplitude to value |
1260 | * set in the EEPROM. | |
1da177e4 LT |
1261 | */ |
1262 | ctrl = E1000_READ_REG(hw, CTRL); | |
8fc897b0 | 1263 | if (hw->media_type == e1000_media_type_fiber) |
1da177e4 LT |
1264 | signal = (hw->mac_type > e1000_82544) ? E1000_CTRL_SWDPIN1 : 0; |
1265 | ||
1266 | ret_val = e1000_adjust_serdes_amplitude(hw); | |
8fc897b0 | 1267 | if (ret_val) |
1da177e4 LT |
1268 | return ret_val; |
1269 | ||
1270 | /* Take the link out of reset */ | |
1271 | ctrl &= ~(E1000_CTRL_LRST); | |
1272 | ||
1273 | /* Adjust VCO speed to improve BER performance */ | |
1274 | ret_val = e1000_set_vco_speed(hw); | |
8fc897b0 | 1275 | if (ret_val) |
1da177e4 LT |
1276 | return ret_val; |
1277 | ||
1278 | e1000_config_collision_dist(hw); | |
1279 | ||
1280 | /* Check for a software override of the flow control settings, and setup | |
1281 | * the device accordingly. If auto-negotiation is enabled, then software | |
1282 | * will have to set the "PAUSE" bits to the correct value in the Tranmsit | |
1283 | * Config Word Register (TXCW) and re-start auto-negotiation. However, if | |
1284 | * auto-negotiation is disabled, then software will have to manually | |
1285 | * configure the two flow control enable bits in the CTRL register. | |
1286 | * | |
1287 | * The possible values of the "fc" parameter are: | |
1288 | * 0: Flow control is completely disabled | |
1289 | * 1: Rx flow control is enabled (we can receive pause frames, but | |
1290 | * not send pause frames). | |
1291 | * 2: Tx flow control is enabled (we can send pause frames but we do | |
1292 | * not support receiving pause frames). | |
1293 | * 3: Both Rx and TX flow control (symmetric) are enabled. | |
1294 | */ | |
1295 | switch (hw->fc) { | |
11241b10 | 1296 | case E1000_FC_NONE: |
1da177e4 LT |
1297 | /* Flow control is completely disabled by a software over-ride. */ |
1298 | txcw = (E1000_TXCW_ANE | E1000_TXCW_FD); | |
1299 | break; | |
11241b10 | 1300 | case E1000_FC_RX_PAUSE: |
1da177e4 LT |
1301 | /* RX Flow control is enabled and TX Flow control is disabled by a |
1302 | * software over-ride. Since there really isn't a way to advertise | |
1303 | * that we are capable of RX Pause ONLY, we will advertise that we | |
1304 | * support both symmetric and asymmetric RX PAUSE. Later, we will | |
1305 | * disable the adapter's ability to send PAUSE frames. | |
1306 | */ | |
1307 | txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_PAUSE_MASK); | |
1308 | break; | |
11241b10 | 1309 | case E1000_FC_TX_PAUSE: |
1da177e4 LT |
1310 | /* TX Flow control is enabled, and RX Flow control is disabled, by a |
1311 | * software over-ride. | |
1312 | */ | |
1313 | txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_ASM_DIR); | |
1314 | break; | |
11241b10 | 1315 | case E1000_FC_FULL: |
1da177e4 LT |
1316 | /* Flow control (both RX and TX) is enabled by a software over-ride. */ |
1317 | txcw = (E1000_TXCW_ANE | E1000_TXCW_FD | E1000_TXCW_PAUSE_MASK); | |
1318 | break; | |
1319 | default: | |
1320 | DEBUGOUT("Flow control param set incorrectly\n"); | |
1321 | return -E1000_ERR_CONFIG; | |
1322 | break; | |
1323 | } | |
1324 | ||
1325 | /* Since auto-negotiation is enabled, take the link out of reset (the link | |
1326 | * will be in reset, because we previously reset the chip). This will | |
1327 | * restart auto-negotiation. If auto-neogtiation is successful then the | |
1328 | * link-up status bit will be set and the flow control enable bits (RFCE | |
1329 | * and TFCE) will be set according to their negotiated value. | |
1330 | */ | |
1331 | DEBUGOUT("Auto-negotiation enabled\n"); | |
1332 | ||
1333 | E1000_WRITE_REG(hw, TXCW, txcw); | |
1334 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
1335 | E1000_WRITE_FLUSH(hw); | |
1336 | ||
1337 | hw->txcw = txcw; | |
f8ec4733 | 1338 | msleep(1); |
1da177e4 LT |
1339 | |
1340 | /* If we have a signal (the cable is plugged in) then poll for a "Link-Up" | |
1341 | * indication in the Device Status Register. Time-out if a link isn't | |
1342 | * seen in 500 milliseconds seconds (Auto-negotiation should complete in | |
1343 | * less than 500 milliseconds even if the other end is doing it in SW). | |
1344 | * For internal serdes, we just assume a signal is present, then poll. | |
1345 | */ | |
8fc897b0 | 1346 | if (hw->media_type == e1000_media_type_internal_serdes || |
1da177e4 LT |
1347 | (E1000_READ_REG(hw, CTRL) & E1000_CTRL_SWDPIN1) == signal) { |
1348 | DEBUGOUT("Looking for Link\n"); | |
8fc897b0 | 1349 | for (i = 0; i < (LINK_UP_TIMEOUT / 10); i++) { |
f8ec4733 | 1350 | msleep(10); |
1da177e4 | 1351 | status = E1000_READ_REG(hw, STATUS); |
8fc897b0 | 1352 | if (status & E1000_STATUS_LU) break; |
1da177e4 | 1353 | } |
8fc897b0 | 1354 | if (i == (LINK_UP_TIMEOUT / 10)) { |
1da177e4 LT |
1355 | DEBUGOUT("Never got a valid link from auto-neg!!!\n"); |
1356 | hw->autoneg_failed = 1; | |
1357 | /* AutoNeg failed to achieve a link, so we'll call | |
1358 | * e1000_check_for_link. This routine will force the link up if | |
1359 | * we detect a signal. This will allow us to communicate with | |
1360 | * non-autonegotiating link partners. | |
1361 | */ | |
1362 | ret_val = e1000_check_for_link(hw); | |
8fc897b0 | 1363 | if (ret_val) { |
1da177e4 LT |
1364 | DEBUGOUT("Error while checking for link\n"); |
1365 | return ret_val; | |
1366 | } | |
1367 | hw->autoneg_failed = 0; | |
1368 | } else { | |
1369 | hw->autoneg_failed = 0; | |
1370 | DEBUGOUT("Valid Link Found\n"); | |
1371 | } | |
1372 | } else { | |
1373 | DEBUGOUT("No Signal Detected\n"); | |
1374 | } | |
1375 | return E1000_SUCCESS; | |
1376 | } | |
1377 | ||
1378 | /****************************************************************************** | |
2d7edb92 | 1379 | * Make sure we have a valid PHY and change PHY mode before link setup. |
1da177e4 LT |
1380 | * |
1381 | * hw - Struct containing variables accessed by shared code | |
1382 | ******************************************************************************/ | |
406874a7 | 1383 | static s32 |
2d7edb92 | 1384 | e1000_copper_link_preconfig(struct e1000_hw *hw) |
1da177e4 | 1385 | { |
406874a7 JP |
1386 | u32 ctrl; |
1387 | s32 ret_val; | |
1388 | u16 phy_data; | |
1da177e4 | 1389 | |
2d7edb92 | 1390 | DEBUGFUNC("e1000_copper_link_preconfig"); |
1da177e4 LT |
1391 | |
1392 | ctrl = E1000_READ_REG(hw, CTRL); | |
1393 | /* With 82543, we need to force speed and duplex on the MAC equal to what | |
1394 | * the PHY speed and duplex configuration is. In addition, we need to | |
1395 | * perform a hardware reset on the PHY to take it out of reset. | |
1396 | */ | |
8fc897b0 | 1397 | if (hw->mac_type > e1000_82543) { |
1da177e4 LT |
1398 | ctrl |= E1000_CTRL_SLU; |
1399 | ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); | |
1400 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
1401 | } else { | |
1402 | ctrl |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX | E1000_CTRL_SLU); | |
1403 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
2d7edb92 | 1404 | ret_val = e1000_phy_hw_reset(hw); |
8fc897b0 | 1405 | if (ret_val) |
2d7edb92 | 1406 | return ret_val; |
1da177e4 LT |
1407 | } |
1408 | ||
1409 | /* Make sure we have a valid PHY */ | |
1410 | ret_val = e1000_detect_gig_phy(hw); | |
8fc897b0 | 1411 | if (ret_val) { |
1da177e4 LT |
1412 | DEBUGOUT("Error, did not detect valid phy.\n"); |
1413 | return ret_val; | |
1414 | } | |
1415 | DEBUGOUT1("Phy ID = %x \n", hw->phy_id); | |
1416 | ||
1417 | /* Set PHY to class A mode (if necessary) */ | |
1418 | ret_val = e1000_set_phy_mode(hw); | |
8fc897b0 | 1419 | if (ret_val) |
1da177e4 LT |
1420 | return ret_val; |
1421 | ||
8fc897b0 | 1422 | if ((hw->mac_type == e1000_82545_rev_3) || |
1da177e4 LT |
1423 | (hw->mac_type == e1000_82546_rev_3)) { |
1424 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); | |
1425 | phy_data |= 0x00000008; | |
1426 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data); | |
1427 | } | |
1428 | ||
8fc897b0 AK |
1429 | if (hw->mac_type <= e1000_82543 || |
1430 | hw->mac_type == e1000_82541 || hw->mac_type == e1000_82547 || | |
1431 | hw->mac_type == e1000_82541_rev_2 || hw->mac_type == e1000_82547_rev_2) | |
c3033b01 | 1432 | hw->phy_reset_disable = false; |
1da177e4 | 1433 | |
2d7edb92 MC |
1434 | return E1000_SUCCESS; |
1435 | } | |
1da177e4 | 1436 | |
1da177e4 | 1437 | |
2d7edb92 MC |
1438 | /******************************************************************** |
1439 | * Copper link setup for e1000_phy_igp series. | |
1440 | * | |
1441 | * hw - Struct containing variables accessed by shared code | |
1442 | *********************************************************************/ | |
406874a7 | 1443 | static s32 |
2d7edb92 MC |
1444 | e1000_copper_link_igp_setup(struct e1000_hw *hw) |
1445 | { | |
406874a7 JP |
1446 | u32 led_ctrl; |
1447 | s32 ret_val; | |
1448 | u16 phy_data; | |
1da177e4 | 1449 | |
2d7edb92 | 1450 | DEBUGFUNC("e1000_copper_link_igp_setup"); |
1da177e4 | 1451 | |
2d7edb92 MC |
1452 | if (hw->phy_reset_disable) |
1453 | return E1000_SUCCESS; | |
76c224bc | 1454 | |
2d7edb92 MC |
1455 | ret_val = e1000_phy_reset(hw); |
1456 | if (ret_val) { | |
1457 | DEBUGOUT("Error Resetting the PHY\n"); | |
1458 | return ret_val; | |
1459 | } | |
1da177e4 | 1460 | |
8fc897b0 | 1461 | /* Wait 15ms for MAC to configure PHY from eeprom settings */ |
f8ec4733 | 1462 | msleep(15); |
cd94dd0b | 1463 | if (hw->mac_type != e1000_ich8lan) { |
2d7edb92 MC |
1464 | /* Configure activity LED after PHY reset */ |
1465 | led_ctrl = E1000_READ_REG(hw, LEDCTL); | |
1466 | led_ctrl &= IGP_ACTIVITY_LED_MASK; | |
1467 | led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE); | |
1468 | E1000_WRITE_REG(hw, LEDCTL, led_ctrl); | |
cd94dd0b | 1469 | } |
1da177e4 | 1470 | |
c9c1b834 JK |
1471 | /* The NVM settings will configure LPLU in D3 for IGP2 and IGP3 PHYs */ |
1472 | if (hw->phy_type == e1000_phy_igp) { | |
1473 | /* disable lplu d3 during driver init */ | |
c3033b01 | 1474 | ret_val = e1000_set_d3_lplu_state(hw, false); |
c9c1b834 JK |
1475 | if (ret_val) { |
1476 | DEBUGOUT("Error Disabling LPLU D3\n"); | |
1477 | return ret_val; | |
1478 | } | |
2d7edb92 | 1479 | } |
1da177e4 | 1480 | |
2d7edb92 | 1481 | /* disable lplu d0 during driver init */ |
c3033b01 | 1482 | ret_val = e1000_set_d0_lplu_state(hw, false); |
2d7edb92 MC |
1483 | if (ret_val) { |
1484 | DEBUGOUT("Error Disabling LPLU D0\n"); | |
1485 | return ret_val; | |
1486 | } | |
1487 | /* Configure mdi-mdix settings */ | |
1488 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, &phy_data); | |
1489 | if (ret_val) | |
1490 | return ret_val; | |
1da177e4 | 1491 | |
2d7edb92 MC |
1492 | if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) { |
1493 | hw->dsp_config_state = e1000_dsp_config_disabled; | |
1494 | /* Force MDI for earlier revs of the IGP PHY */ | |
1495 | phy_data &= ~(IGP01E1000_PSCR_AUTO_MDIX | IGP01E1000_PSCR_FORCE_MDI_MDIX); | |
1496 | hw->mdix = 1; | |
1da177e4 | 1497 | |
2d7edb92 MC |
1498 | } else { |
1499 | hw->dsp_config_state = e1000_dsp_config_enabled; | |
1500 | phy_data &= ~IGP01E1000_PSCR_AUTO_MDIX; | |
1da177e4 | 1501 | |
2d7edb92 MC |
1502 | switch (hw->mdix) { |
1503 | case 1: | |
1504 | phy_data &= ~IGP01E1000_PSCR_FORCE_MDI_MDIX; | |
1505 | break; | |
1506 | case 2: | |
1507 | phy_data |= IGP01E1000_PSCR_FORCE_MDI_MDIX; | |
1508 | break; | |
1509 | case 0: | |
1510 | default: | |
1511 | phy_data |= IGP01E1000_PSCR_AUTO_MDIX; | |
1512 | break; | |
1513 | } | |
1514 | } | |
1515 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, phy_data); | |
8fc897b0 | 1516 | if (ret_val) |
2d7edb92 | 1517 | return ret_val; |
1da177e4 | 1518 | |
2d7edb92 | 1519 | /* set auto-master slave resolution settings */ |
8fc897b0 | 1520 | if (hw->autoneg) { |
2d7edb92 | 1521 | e1000_ms_type phy_ms_setting = hw->master_slave; |
1da177e4 | 1522 | |
8fc897b0 | 1523 | if (hw->ffe_config_state == e1000_ffe_config_active) |
2d7edb92 | 1524 | hw->ffe_config_state = e1000_ffe_config_enabled; |
1da177e4 | 1525 | |
8fc897b0 | 1526 | if (hw->dsp_config_state == e1000_dsp_config_activated) |
2d7edb92 | 1527 | hw->dsp_config_state = e1000_dsp_config_enabled; |
1da177e4 | 1528 | |
2d7edb92 MC |
1529 | /* when autonegotiation advertisment is only 1000Mbps then we |
1530 | * should disable SmartSpeed and enable Auto MasterSlave | |
1531 | * resolution as hardware default. */ | |
8fc897b0 | 1532 | if (hw->autoneg_advertised == ADVERTISE_1000_FULL) { |
2d7edb92 | 1533 | /* Disable SmartSpeed */ |
8fc897b0 AK |
1534 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, |
1535 | &phy_data); | |
1536 | if (ret_val) | |
1da177e4 | 1537 | return ret_val; |
2d7edb92 | 1538 | phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; |
8fc897b0 AK |
1539 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, |
1540 | phy_data); | |
1541 | if (ret_val) | |
1da177e4 | 1542 | return ret_val; |
2d7edb92 MC |
1543 | /* Set auto Master/Slave resolution process */ |
1544 | ret_val = e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_data); | |
8fc897b0 | 1545 | if (ret_val) |
2d7edb92 MC |
1546 | return ret_val; |
1547 | phy_data &= ~CR_1000T_MS_ENABLE; | |
1548 | ret_val = e1000_write_phy_reg(hw, PHY_1000T_CTRL, phy_data); | |
8fc897b0 | 1549 | if (ret_val) |
2d7edb92 MC |
1550 | return ret_val; |
1551 | } | |
1da177e4 | 1552 | |
2d7edb92 | 1553 | ret_val = e1000_read_phy_reg(hw, PHY_1000T_CTRL, &phy_data); |
8fc897b0 | 1554 | if (ret_val) |
2d7edb92 | 1555 | return ret_val; |
1da177e4 | 1556 | |
2d7edb92 MC |
1557 | /* load defaults for future use */ |
1558 | hw->original_master_slave = (phy_data & CR_1000T_MS_ENABLE) ? | |
1559 | ((phy_data & CR_1000T_MS_VALUE) ? | |
1560 | e1000_ms_force_master : | |
1561 | e1000_ms_force_slave) : | |
1562 | e1000_ms_auto; | |
1da177e4 | 1563 | |
2d7edb92 MC |
1564 | switch (phy_ms_setting) { |
1565 | case e1000_ms_force_master: | |
1566 | phy_data |= (CR_1000T_MS_ENABLE | CR_1000T_MS_VALUE); | |
1567 | break; | |
1568 | case e1000_ms_force_slave: | |
1569 | phy_data |= CR_1000T_MS_ENABLE; | |
1570 | phy_data &= ~(CR_1000T_MS_VALUE); | |
1571 | break; | |
1572 | case e1000_ms_auto: | |
1573 | phy_data &= ~CR_1000T_MS_ENABLE; | |
1574 | default: | |
1575 | break; | |
1576 | } | |
1577 | ret_val = e1000_write_phy_reg(hw, PHY_1000T_CTRL, phy_data); | |
8fc897b0 | 1578 | if (ret_val) |
2d7edb92 | 1579 | return ret_val; |
2b02893e | 1580 | } |
1da177e4 | 1581 | |
2b02893e | 1582 | return E1000_SUCCESS; |
2d7edb92 | 1583 | } |
1da177e4 | 1584 | |
6418ecc6 JK |
1585 | /******************************************************************** |
1586 | * Copper link setup for e1000_phy_gg82563 series. | |
1587 | * | |
1588 | * hw - Struct containing variables accessed by shared code | |
1589 | *********************************************************************/ | |
406874a7 | 1590 | static s32 |
6418ecc6 JK |
1591 | e1000_copper_link_ggp_setup(struct e1000_hw *hw) |
1592 | { | |
406874a7 JP |
1593 | s32 ret_val; |
1594 | u16 phy_data; | |
1595 | u32 reg_data; | |
6418ecc6 JK |
1596 | |
1597 | DEBUGFUNC("e1000_copper_link_ggp_setup"); | |
1598 | ||
8fc897b0 | 1599 | if (!hw->phy_reset_disable) { |
76c224bc | 1600 | |
6418ecc6 JK |
1601 | /* Enable CRS on TX for half-duplex operation. */ |
1602 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_MAC_SPEC_CTRL, | |
1603 | &phy_data); | |
8fc897b0 | 1604 | if (ret_val) |
6418ecc6 JK |
1605 | return ret_val; |
1606 | ||
1607 | phy_data |= GG82563_MSCR_ASSERT_CRS_ON_TX; | |
1608 | /* Use 25MHz for both link down and 1000BASE-T for Tx clock */ | |
1609 | phy_data |= GG82563_MSCR_TX_CLK_1000MBPS_25MHZ; | |
1610 | ||
1611 | ret_val = e1000_write_phy_reg(hw, GG82563_PHY_MAC_SPEC_CTRL, | |
1612 | phy_data); | |
8fc897b0 | 1613 | if (ret_val) |
6418ecc6 JK |
1614 | return ret_val; |
1615 | ||
1616 | /* Options: | |
1617 | * MDI/MDI-X = 0 (default) | |
1618 | * 0 - Auto for all speeds | |
1619 | * 1 - MDI mode | |
1620 | * 2 - MDI-X mode | |
1621 | * 3 - Auto for 1000Base-T only (MDI-X for 10/100Base-T modes) | |
1622 | */ | |
1623 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_SPEC_CTRL, &phy_data); | |
8fc897b0 | 1624 | if (ret_val) |
6418ecc6 JK |
1625 | return ret_val; |
1626 | ||
1627 | phy_data &= ~GG82563_PSCR_CROSSOVER_MODE_MASK; | |
1628 | ||
1629 | switch (hw->mdix) { | |
1630 | case 1: | |
1631 | phy_data |= GG82563_PSCR_CROSSOVER_MODE_MDI; | |
1632 | break; | |
1633 | case 2: | |
1634 | phy_data |= GG82563_PSCR_CROSSOVER_MODE_MDIX; | |
1635 | break; | |
1636 | case 0: | |
1637 | default: | |
1638 | phy_data |= GG82563_PSCR_CROSSOVER_MODE_AUTO; | |
1639 | break; | |
1640 | } | |
1641 | ||
1642 | /* Options: | |
1643 | * disable_polarity_correction = 0 (default) | |
1644 | * Automatic Correction for Reversed Cable Polarity | |
1645 | * 0 - Disabled | |
1646 | * 1 - Enabled | |
1647 | */ | |
1648 | phy_data &= ~GG82563_PSCR_POLARITY_REVERSAL_DISABLE; | |
8fc897b0 | 1649 | if (hw->disable_polarity_correction == 1) |
6418ecc6 JK |
1650 | phy_data |= GG82563_PSCR_POLARITY_REVERSAL_DISABLE; |
1651 | ret_val = e1000_write_phy_reg(hw, GG82563_PHY_SPEC_CTRL, phy_data); | |
1652 | ||
8fc897b0 | 1653 | if (ret_val) |
6418ecc6 JK |
1654 | return ret_val; |
1655 | ||
1656 | /* SW Reset the PHY so all changes take effect */ | |
1657 | ret_val = e1000_phy_reset(hw); | |
1658 | if (ret_val) { | |
1659 | DEBUGOUT("Error Resetting the PHY\n"); | |
1660 | return ret_val; | |
1661 | } | |
1662 | } /* phy_reset_disable */ | |
1663 | ||
1664 | if (hw->mac_type == e1000_80003es2lan) { | |
1665 | /* Bypass RX and TX FIFO's */ | |
1666 | ret_val = e1000_write_kmrn_reg(hw, E1000_KUMCTRLSTA_OFFSET_FIFO_CTRL, | |
1667 | E1000_KUMCTRLSTA_FIFO_CTRL_RX_BYPASS | | |
1668 | E1000_KUMCTRLSTA_FIFO_CTRL_TX_BYPASS); | |
1669 | if (ret_val) | |
1670 | return ret_val; | |
1671 | ||
1672 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_SPEC_CTRL_2, &phy_data); | |
1673 | if (ret_val) | |
1674 | return ret_val; | |
1675 | ||
1676 | phy_data &= ~GG82563_PSCR2_REVERSE_AUTO_NEG; | |
1677 | ret_val = e1000_write_phy_reg(hw, GG82563_PHY_SPEC_CTRL_2, phy_data); | |
1678 | ||
1679 | if (ret_val) | |
1680 | return ret_val; | |
1681 | ||
1682 | reg_data = E1000_READ_REG(hw, CTRL_EXT); | |
1683 | reg_data &= ~(E1000_CTRL_EXT_LINK_MODE_MASK); | |
1684 | E1000_WRITE_REG(hw, CTRL_EXT, reg_data); | |
1685 | ||
1686 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_PWR_MGMT_CTRL, | |
1687 | &phy_data); | |
1688 | if (ret_val) | |
1689 | return ret_val; | |
1690 | ||
1691 | /* Do not init these registers when the HW is in IAMT mode, since the | |
1692 | * firmware will have already initialized them. We only initialize | |
1693 | * them if the HW is not in IAMT mode. | |
1694 | */ | |
c3033b01 | 1695 | if (!e1000_check_mng_mode(hw)) { |
6418ecc6 JK |
1696 | /* Enable Electrical Idle on the PHY */ |
1697 | phy_data |= GG82563_PMCR_ENABLE_ELECTRICAL_IDLE; | |
1698 | ret_val = e1000_write_phy_reg(hw, GG82563_PHY_PWR_MGMT_CTRL, | |
1699 | phy_data); | |
1700 | if (ret_val) | |
1701 | return ret_val; | |
1702 | ||
1703 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, | |
1704 | &phy_data); | |
1705 | if (ret_val) | |
1706 | return ret_val; | |
1707 | ||
cd94dd0b | 1708 | phy_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER; |
6418ecc6 JK |
1709 | ret_val = e1000_write_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, |
1710 | phy_data); | |
8fc897b0 | 1711 | |
6418ecc6 JK |
1712 | if (ret_val) |
1713 | return ret_val; | |
1714 | } | |
1715 | ||
1716 | /* Workaround: Disable padding in Kumeran interface in the MAC | |
1717 | * and in the PHY to avoid CRC errors. | |
1718 | */ | |
1719 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_INBAND_CTRL, | |
1720 | &phy_data); | |
1721 | if (ret_val) | |
1722 | return ret_val; | |
1723 | phy_data |= GG82563_ICR_DIS_PADDING; | |
1724 | ret_val = e1000_write_phy_reg(hw, GG82563_PHY_INBAND_CTRL, | |
1725 | phy_data); | |
1726 | if (ret_val) | |
1727 | return ret_val; | |
1728 | } | |
1729 | ||
1730 | return E1000_SUCCESS; | |
1731 | } | |
1da177e4 | 1732 | |
2d7edb92 MC |
1733 | /******************************************************************** |
1734 | * Copper link setup for e1000_phy_m88 series. | |
1735 | * | |
1736 | * hw - Struct containing variables accessed by shared code | |
1737 | *********************************************************************/ | |
406874a7 | 1738 | static s32 |
2d7edb92 MC |
1739 | e1000_copper_link_mgp_setup(struct e1000_hw *hw) |
1740 | { | |
406874a7 JP |
1741 | s32 ret_val; |
1742 | u16 phy_data; | |
1da177e4 | 1743 | |
2d7edb92 | 1744 | DEBUGFUNC("e1000_copper_link_mgp_setup"); |
1da177e4 | 1745 | |
8fc897b0 | 1746 | if (hw->phy_reset_disable) |
2d7edb92 | 1747 | return E1000_SUCCESS; |
76c224bc | 1748 | |
2d7edb92 MC |
1749 | /* Enable CRS on TX. This must be set for half-duplex operation. */ |
1750 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); | |
8fc897b0 | 1751 | if (ret_val) |
2d7edb92 | 1752 | return ret_val; |
1da177e4 | 1753 | |
2d7edb92 | 1754 | phy_data |= M88E1000_PSCR_ASSERT_CRS_ON_TX; |
1da177e4 | 1755 | |
2d7edb92 MC |
1756 | /* Options: |
1757 | * MDI/MDI-X = 0 (default) | |
1758 | * 0 - Auto for all speeds | |
1759 | * 1 - MDI mode | |
1760 | * 2 - MDI-X mode | |
1761 | * 3 - Auto for 1000Base-T only (MDI-X for 10/100Base-T modes) | |
1762 | */ | |
1763 | phy_data &= ~M88E1000_PSCR_AUTO_X_MODE; | |
1da177e4 | 1764 | |
2d7edb92 MC |
1765 | switch (hw->mdix) { |
1766 | case 1: | |
1767 | phy_data |= M88E1000_PSCR_MDI_MANUAL_MODE; | |
1768 | break; | |
1769 | case 2: | |
1770 | phy_data |= M88E1000_PSCR_MDIX_MANUAL_MODE; | |
1771 | break; | |
1772 | case 3: | |
1773 | phy_data |= M88E1000_PSCR_AUTO_X_1000T; | |
1774 | break; | |
1775 | case 0: | |
1776 | default: | |
1777 | phy_data |= M88E1000_PSCR_AUTO_X_MODE; | |
1778 | break; | |
1779 | } | |
1780 | ||
1781 | /* Options: | |
1782 | * disable_polarity_correction = 0 (default) | |
1783 | * Automatic Correction for Reversed Cable Polarity | |
1784 | * 0 - Disabled | |
1785 | * 1 - Enabled | |
1da177e4 | 1786 | */ |
2d7edb92 | 1787 | phy_data &= ~M88E1000_PSCR_POLARITY_REVERSAL; |
8fc897b0 | 1788 | if (hw->disable_polarity_correction == 1) |
2d7edb92 | 1789 | phy_data |= M88E1000_PSCR_POLARITY_REVERSAL; |
ee04022a AK |
1790 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data); |
1791 | if (ret_val) | |
2d7edb92 MC |
1792 | return ret_val; |
1793 | ||
2d7edb92 | 1794 | if (hw->phy_revision < M88E1011_I_REV_4) { |
ee04022a AK |
1795 | /* Force TX_CLK in the Extended PHY Specific Control Register |
1796 | * to 25MHz clock. | |
1797 | */ | |
1798 | ret_val = e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_data); | |
1799 | if (ret_val) | |
1800 | return ret_val; | |
1801 | ||
1802 | phy_data |= M88E1000_EPSCR_TX_CLK_25; | |
1803 | ||
1804 | if ((hw->phy_revision == E1000_REVISION_2) && | |
1805 | (hw->phy_id == M88E1111_I_PHY_ID)) { | |
1806 | /* Vidalia Phy, set the downshift counter to 5x */ | |
1807 | phy_data &= ~(M88EC018_EPSCR_DOWNSHIFT_COUNTER_MASK); | |
1808 | phy_data |= M88EC018_EPSCR_DOWNSHIFT_COUNTER_5X; | |
1809 | ret_val = e1000_write_phy_reg(hw, | |
1810 | M88E1000_EXT_PHY_SPEC_CTRL, phy_data); | |
1811 | if (ret_val) | |
1812 | return ret_val; | |
1813 | } else { | |
1814 | /* Configure Master and Slave downshift values */ | |
1815 | phy_data &= ~(M88E1000_EPSCR_MASTER_DOWNSHIFT_MASK | | |
2d7edb92 | 1816 | M88E1000_EPSCR_SLAVE_DOWNSHIFT_MASK); |
ee04022a | 1817 | phy_data |= (M88E1000_EPSCR_MASTER_DOWNSHIFT_1X | |
2d7edb92 | 1818 | M88E1000_EPSCR_SLAVE_DOWNSHIFT_1X); |
ee04022a AK |
1819 | ret_val = e1000_write_phy_reg(hw, |
1820 | M88E1000_EXT_PHY_SPEC_CTRL, phy_data); | |
1821 | if (ret_val) | |
1822 | return ret_val; | |
1823 | } | |
2d7edb92 | 1824 | } |
1da177e4 | 1825 | |
2d7edb92 MC |
1826 | /* SW Reset the PHY so all changes take effect */ |
1827 | ret_val = e1000_phy_reset(hw); | |
8fc897b0 | 1828 | if (ret_val) { |
2d7edb92 MC |
1829 | DEBUGOUT("Error Resetting the PHY\n"); |
1830 | return ret_val; | |
1da177e4 LT |
1831 | } |
1832 | ||
2d7edb92 | 1833 | return E1000_SUCCESS; |
1da177e4 LT |
1834 | } |
1835 | ||
2d7edb92 MC |
1836 | /******************************************************************** |
1837 | * Setup auto-negotiation and flow control advertisements, | |
1838 | * and then perform auto-negotiation. | |
1da177e4 LT |
1839 | * |
1840 | * hw - Struct containing variables accessed by shared code | |
2d7edb92 | 1841 | *********************************************************************/ |
406874a7 | 1842 | static s32 |
2d7edb92 | 1843 | e1000_copper_link_autoneg(struct e1000_hw *hw) |
1da177e4 | 1844 | { |
406874a7 JP |
1845 | s32 ret_val; |
1846 | u16 phy_data; | |
1da177e4 | 1847 | |
2d7edb92 | 1848 | DEBUGFUNC("e1000_copper_link_autoneg"); |
1da177e4 | 1849 | |
2d7edb92 MC |
1850 | /* Perform some bounds checking on the hw->autoneg_advertised |
1851 | * parameter. If this variable is zero, then set it to the default. | |
1852 | */ | |
1853 | hw->autoneg_advertised &= AUTONEG_ADVERTISE_SPEED_DEFAULT; | |
1854 | ||
1855 | /* If autoneg_advertised is zero, we assume it was not defaulted | |
1856 | * by the calling code so we set to advertise full capability. | |
1857 | */ | |
8fc897b0 | 1858 | if (hw->autoneg_advertised == 0) |
2d7edb92 MC |
1859 | hw->autoneg_advertised = AUTONEG_ADVERTISE_SPEED_DEFAULT; |
1860 | ||
cd94dd0b AK |
1861 | /* IFE phy only supports 10/100 */ |
1862 | if (hw->phy_type == e1000_phy_ife) | |
1863 | hw->autoneg_advertised &= AUTONEG_ADVERTISE_10_100_ALL; | |
1864 | ||
2d7edb92 MC |
1865 | DEBUGOUT("Reconfiguring auto-neg advertisement params\n"); |
1866 | ret_val = e1000_phy_setup_autoneg(hw); | |
8fc897b0 | 1867 | if (ret_val) { |
2d7edb92 MC |
1868 | DEBUGOUT("Error Setting up Auto-Negotiation\n"); |
1869 | return ret_val; | |
1870 | } | |
1871 | DEBUGOUT("Restarting Auto-Neg\n"); | |
1872 | ||
1873 | /* Restart auto-negotiation by setting the Auto Neg Enable bit and | |
1874 | * the Auto Neg Restart bit in the PHY control register. | |
1875 | */ | |
1876 | ret_val = e1000_read_phy_reg(hw, PHY_CTRL, &phy_data); | |
8fc897b0 | 1877 | if (ret_val) |
1da177e4 LT |
1878 | return ret_val; |
1879 | ||
2d7edb92 MC |
1880 | phy_data |= (MII_CR_AUTO_NEG_EN | MII_CR_RESTART_AUTO_NEG); |
1881 | ret_val = e1000_write_phy_reg(hw, PHY_CTRL, phy_data); | |
8fc897b0 | 1882 | if (ret_val) |
1da177e4 LT |
1883 | return ret_val; |
1884 | ||
2d7edb92 MC |
1885 | /* Does the user want to wait for Auto-Neg to complete here, or |
1886 | * check at a later time (for example, callback routine). | |
1887 | */ | |
8fc897b0 | 1888 | if (hw->wait_autoneg_complete) { |
2d7edb92 | 1889 | ret_val = e1000_wait_autoneg(hw); |
8fc897b0 | 1890 | if (ret_val) { |
2d7edb92 MC |
1891 | DEBUGOUT("Error while waiting for autoneg to complete\n"); |
1892 | return ret_val; | |
1893 | } | |
1894 | } | |
1895 | ||
c3033b01 | 1896 | hw->get_link_status = true; |
2d7edb92 MC |
1897 | |
1898 | return E1000_SUCCESS; | |
1899 | } | |
1900 | ||
2d7edb92 MC |
1901 | /****************************************************************************** |
1902 | * Config the MAC and the PHY after link is up. | |
1903 | * 1) Set up the MAC to the current PHY speed/duplex | |
1904 | * if we are on 82543. If we | |
1905 | * are on newer silicon, we only need to configure | |
1906 | * collision distance in the Transmit Control Register. | |
1907 | * 2) Set up flow control on the MAC to that established with | |
1908 | * the link partner. | |
76c224bc | 1909 | * 3) Config DSP to improve Gigabit link quality for some PHY revisions. |
2d7edb92 MC |
1910 | * |
1911 | * hw - Struct containing variables accessed by shared code | |
1912 | ******************************************************************************/ | |
406874a7 | 1913 | static s32 |
2d7edb92 MC |
1914 | e1000_copper_link_postconfig(struct e1000_hw *hw) |
1915 | { | |
406874a7 | 1916 | s32 ret_val; |
2d7edb92 | 1917 | DEBUGFUNC("e1000_copper_link_postconfig"); |
76c224bc | 1918 | |
8fc897b0 | 1919 | if (hw->mac_type >= e1000_82544) { |
2d7edb92 MC |
1920 | e1000_config_collision_dist(hw); |
1921 | } else { | |
1922 | ret_val = e1000_config_mac_to_phy(hw); | |
8fc897b0 | 1923 | if (ret_val) { |
2d7edb92 MC |
1924 | DEBUGOUT("Error configuring MAC to PHY settings\n"); |
1925 | return ret_val; | |
1926 | } | |
1927 | } | |
1928 | ret_val = e1000_config_fc_after_link_up(hw); | |
8fc897b0 | 1929 | if (ret_val) { |
2d7edb92 MC |
1930 | DEBUGOUT("Error Configuring Flow Control\n"); |
1931 | return ret_val; | |
1932 | } | |
1933 | ||
1934 | /* Config DSP to improve Giga link quality */ | |
8fc897b0 | 1935 | if (hw->phy_type == e1000_phy_igp) { |
c3033b01 | 1936 | ret_val = e1000_config_dsp_after_link_change(hw, true); |
8fc897b0 | 1937 | if (ret_val) { |
2d7edb92 MC |
1938 | DEBUGOUT("Error Configuring DSP after link up\n"); |
1939 | return ret_val; | |
1940 | } | |
1941 | } | |
76c224bc | 1942 | |
2d7edb92 MC |
1943 | return E1000_SUCCESS; |
1944 | } | |
1945 | ||
1946 | /****************************************************************************** | |
1947 | * Detects which PHY is present and setup the speed and duplex | |
1948 | * | |
1949 | * hw - Struct containing variables accessed by shared code | |
1950 | ******************************************************************************/ | |
406874a7 | 1951 | static s32 |
2d7edb92 MC |
1952 | e1000_setup_copper_link(struct e1000_hw *hw) |
1953 | { | |
406874a7 JP |
1954 | s32 ret_val; |
1955 | u16 i; | |
1956 | u16 phy_data; | |
1957 | u16 reg_data; | |
2d7edb92 MC |
1958 | |
1959 | DEBUGFUNC("e1000_setup_copper_link"); | |
1960 | ||
cd94dd0b AK |
1961 | switch (hw->mac_type) { |
1962 | case e1000_80003es2lan: | |
1963 | case e1000_ich8lan: | |
1964 | /* Set the mac to wait the maximum time between each | |
1965 | * iteration and increase the max iterations when | |
1966 | * polling the phy; this fixes erroneous timeouts at 10Mbps. */ | |
1967 | ret_val = e1000_write_kmrn_reg(hw, GG82563_REG(0x34, 4), 0xFFFF); | |
1968 | if (ret_val) | |
1969 | return ret_val; | |
1970 | ret_val = e1000_read_kmrn_reg(hw, GG82563_REG(0x34, 9), ®_data); | |
1971 | if (ret_val) | |
1972 | return ret_val; | |
1973 | reg_data |= 0x3F; | |
1974 | ret_val = e1000_write_kmrn_reg(hw, GG82563_REG(0x34, 9), reg_data); | |
1975 | if (ret_val) | |
1976 | return ret_val; | |
1977 | default: | |
1978 | break; | |
1979 | } | |
1980 | ||
2d7edb92 MC |
1981 | /* Check if it is a valid PHY and set PHY mode if necessary. */ |
1982 | ret_val = e1000_copper_link_preconfig(hw); | |
8fc897b0 | 1983 | if (ret_val) |
2d7edb92 MC |
1984 | return ret_val; |
1985 | ||
6418ecc6 JK |
1986 | switch (hw->mac_type) { |
1987 | case e1000_80003es2lan: | |
cd94dd0b AK |
1988 | /* Kumeran registers are written-only */ |
1989 | reg_data = E1000_KUMCTRLSTA_INB_CTRL_LINK_STATUS_TX_TIMEOUT_DEFAULT; | |
6418ecc6 JK |
1990 | reg_data |= E1000_KUMCTRLSTA_INB_CTRL_DIS_PADDING; |
1991 | ret_val = e1000_write_kmrn_reg(hw, E1000_KUMCTRLSTA_OFFSET_INB_CTRL, | |
1992 | reg_data); | |
1993 | if (ret_val) | |
1994 | return ret_val; | |
1995 | break; | |
1996 | default: | |
1997 | break; | |
1998 | } | |
1999 | ||
2d7edb92 | 2000 | if (hw->phy_type == e1000_phy_igp || |
cd94dd0b | 2001 | hw->phy_type == e1000_phy_igp_3 || |
2d7edb92 MC |
2002 | hw->phy_type == e1000_phy_igp_2) { |
2003 | ret_val = e1000_copper_link_igp_setup(hw); | |
8fc897b0 | 2004 | if (ret_val) |
2d7edb92 MC |
2005 | return ret_val; |
2006 | } else if (hw->phy_type == e1000_phy_m88) { | |
2007 | ret_val = e1000_copper_link_mgp_setup(hw); | |
8fc897b0 | 2008 | if (ret_val) |
2d7edb92 | 2009 | return ret_val; |
6418ecc6 JK |
2010 | } else if (hw->phy_type == e1000_phy_gg82563) { |
2011 | ret_val = e1000_copper_link_ggp_setup(hw); | |
8fc897b0 | 2012 | if (ret_val) |
6418ecc6 | 2013 | return ret_val; |
2d7edb92 MC |
2014 | } |
2015 | ||
8fc897b0 | 2016 | if (hw->autoneg) { |
76c224bc AK |
2017 | /* Setup autoneg and flow control advertisement |
2018 | * and perform autonegotiation */ | |
2d7edb92 | 2019 | ret_val = e1000_copper_link_autoneg(hw); |
8fc897b0 | 2020 | if (ret_val) |
76c224bc | 2021 | return ret_val; |
2d7edb92 MC |
2022 | } else { |
2023 | /* PHY will be set to 10H, 10F, 100H,or 100F | |
2024 | * depending on value from forced_speed_duplex. */ | |
2025 | DEBUGOUT("Forcing speed and duplex\n"); | |
2026 | ret_val = e1000_phy_force_speed_duplex(hw); | |
8fc897b0 | 2027 | if (ret_val) { |
2d7edb92 MC |
2028 | DEBUGOUT("Error Forcing Speed and Duplex\n"); |
2029 | return ret_val; | |
2030 | } | |
2031 | } | |
2032 | ||
2033 | /* Check link status. Wait up to 100 microseconds for link to become | |
2034 | * valid. | |
2035 | */ | |
8fc897b0 | 2036 | for (i = 0; i < 10; i++) { |
2d7edb92 | 2037 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); |
8fc897b0 | 2038 | if (ret_val) |
2d7edb92 MC |
2039 | return ret_val; |
2040 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); | |
8fc897b0 | 2041 | if (ret_val) |
2d7edb92 MC |
2042 | return ret_val; |
2043 | ||
8fc897b0 | 2044 | if (phy_data & MII_SR_LINK_STATUS) { |
2d7edb92 MC |
2045 | /* Config the MAC and PHY after link is up */ |
2046 | ret_val = e1000_copper_link_postconfig(hw); | |
8fc897b0 | 2047 | if (ret_val) |
2d7edb92 | 2048 | return ret_val; |
76c224bc | 2049 | |
2d7edb92 MC |
2050 | DEBUGOUT("Valid link established!!!\n"); |
2051 | return E1000_SUCCESS; | |
2052 | } | |
2053 | udelay(10); | |
2054 | } | |
2055 | ||
2056 | DEBUGOUT("Unable to establish link!!!\n"); | |
2057 | return E1000_SUCCESS; | |
2058 | } | |
2059 | ||
6418ecc6 JK |
2060 | /****************************************************************************** |
2061 | * Configure the MAC-to-PHY interface for 10/100Mbps | |
2062 | * | |
2063 | * hw - Struct containing variables accessed by shared code | |
2064 | ******************************************************************************/ | |
406874a7 JP |
2065 | static s32 |
2066 | e1000_configure_kmrn_for_10_100(struct e1000_hw *hw, u16 duplex) | |
6418ecc6 | 2067 | { |
406874a7 JP |
2068 | s32 ret_val = E1000_SUCCESS; |
2069 | u32 tipg; | |
2070 | u16 reg_data; | |
6418ecc6 JK |
2071 | |
2072 | DEBUGFUNC("e1000_configure_kmrn_for_10_100"); | |
2073 | ||
2074 | reg_data = E1000_KUMCTRLSTA_HD_CTRL_10_100_DEFAULT; | |
2075 | ret_val = e1000_write_kmrn_reg(hw, E1000_KUMCTRLSTA_OFFSET_HD_CTRL, | |
2076 | reg_data); | |
2077 | if (ret_val) | |
2078 | return ret_val; | |
2079 | ||
2080 | /* Configure Transmit Inter-Packet Gap */ | |
2081 | tipg = E1000_READ_REG(hw, TIPG); | |
2082 | tipg &= ~E1000_TIPG_IPGT_MASK; | |
2083 | tipg |= DEFAULT_80003ES2LAN_TIPG_IPGT_10_100; | |
2084 | E1000_WRITE_REG(hw, TIPG, tipg); | |
2085 | ||
cd94dd0b AK |
2086 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, ®_data); |
2087 | ||
2088 | if (ret_val) | |
2089 | return ret_val; | |
2090 | ||
2091 | if (duplex == HALF_DUPLEX) | |
2092 | reg_data |= GG82563_KMCR_PASS_FALSE_CARRIER; | |
2093 | else | |
2094 | reg_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER; | |
2095 | ||
2096 | ret_val = e1000_write_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, reg_data); | |
2097 | ||
6418ecc6 JK |
2098 | return ret_val; |
2099 | } | |
2100 | ||
406874a7 | 2101 | static s32 |
6418ecc6 JK |
2102 | e1000_configure_kmrn_for_1000(struct e1000_hw *hw) |
2103 | { | |
406874a7 JP |
2104 | s32 ret_val = E1000_SUCCESS; |
2105 | u16 reg_data; | |
2106 | u32 tipg; | |
6418ecc6 JK |
2107 | |
2108 | DEBUGFUNC("e1000_configure_kmrn_for_1000"); | |
2109 | ||
2110 | reg_data = E1000_KUMCTRLSTA_HD_CTRL_1000_DEFAULT; | |
2111 | ret_val = e1000_write_kmrn_reg(hw, E1000_KUMCTRLSTA_OFFSET_HD_CTRL, | |
2112 | reg_data); | |
2113 | if (ret_val) | |
2114 | return ret_val; | |
2115 | ||
2116 | /* Configure Transmit Inter-Packet Gap */ | |
2117 | tipg = E1000_READ_REG(hw, TIPG); | |
2118 | tipg &= ~E1000_TIPG_IPGT_MASK; | |
2119 | tipg |= DEFAULT_80003ES2LAN_TIPG_IPGT_1000; | |
2120 | E1000_WRITE_REG(hw, TIPG, tipg); | |
2121 | ||
cd94dd0b AK |
2122 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, ®_data); |
2123 | ||
2124 | if (ret_val) | |
2125 | return ret_val; | |
2126 | ||
2127 | reg_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER; | |
2128 | ret_val = e1000_write_phy_reg(hw, GG82563_PHY_KMRN_MODE_CTRL, reg_data); | |
2129 | ||
6418ecc6 JK |
2130 | return ret_val; |
2131 | } | |
2132 | ||
2d7edb92 MC |
2133 | /****************************************************************************** |
2134 | * Configures PHY autoneg and flow control advertisement settings | |
2135 | * | |
2136 | * hw - Struct containing variables accessed by shared code | |
2137 | ******************************************************************************/ | |
406874a7 | 2138 | s32 |
2d7edb92 MC |
2139 | e1000_phy_setup_autoneg(struct e1000_hw *hw) |
2140 | { | |
406874a7 JP |
2141 | s32 ret_val; |
2142 | u16 mii_autoneg_adv_reg; | |
2143 | u16 mii_1000t_ctrl_reg; | |
2d7edb92 MC |
2144 | |
2145 | DEBUGFUNC("e1000_phy_setup_autoneg"); | |
2146 | ||
2147 | /* Read the MII Auto-Neg Advertisement Register (Address 4). */ | |
2148 | ret_val = e1000_read_phy_reg(hw, PHY_AUTONEG_ADV, &mii_autoneg_adv_reg); | |
8fc897b0 | 2149 | if (ret_val) |
2d7edb92 MC |
2150 | return ret_val; |
2151 | ||
cd94dd0b AK |
2152 | if (hw->phy_type != e1000_phy_ife) { |
2153 | /* Read the MII 1000Base-T Control Register (Address 9). */ | |
2154 | ret_val = e1000_read_phy_reg(hw, PHY_1000T_CTRL, &mii_1000t_ctrl_reg); | |
2155 | if (ret_val) | |
2156 | return ret_val; | |
2157 | } else | |
2158 | mii_1000t_ctrl_reg=0; | |
2d7edb92 MC |
2159 | |
2160 | /* Need to parse both autoneg_advertised and fc and set up | |
2161 | * the appropriate PHY registers. First we will parse for | |
1da177e4 LT |
2162 | * autoneg_advertised software override. Since we can advertise |
2163 | * a plethora of combinations, we need to check each bit | |
2164 | * individually. | |
2165 | */ | |
2166 | ||
2167 | /* First we clear all the 10/100 mb speed bits in the Auto-Neg | |
2168 | * Advertisement Register (Address 4) and the 1000 mb speed bits in | |
2169 | * the 1000Base-T Control Register (Address 9). | |
2170 | */ | |
2171 | mii_autoneg_adv_reg &= ~REG4_SPEED_MASK; | |
2172 | mii_1000t_ctrl_reg &= ~REG9_SPEED_MASK; | |
2173 | ||
2174 | DEBUGOUT1("autoneg_advertised %x\n", hw->autoneg_advertised); | |
2175 | ||
2176 | /* Do we want to advertise 10 Mb Half Duplex? */ | |
8fc897b0 | 2177 | if (hw->autoneg_advertised & ADVERTISE_10_HALF) { |
1da177e4 LT |
2178 | DEBUGOUT("Advertise 10mb Half duplex\n"); |
2179 | mii_autoneg_adv_reg |= NWAY_AR_10T_HD_CAPS; | |
2180 | } | |
2181 | ||
2182 | /* Do we want to advertise 10 Mb Full Duplex? */ | |
8fc897b0 | 2183 | if (hw->autoneg_advertised & ADVERTISE_10_FULL) { |
1da177e4 LT |
2184 | DEBUGOUT("Advertise 10mb Full duplex\n"); |
2185 | mii_autoneg_adv_reg |= NWAY_AR_10T_FD_CAPS; | |
2186 | } | |
2187 | ||
2188 | /* Do we want to advertise 100 Mb Half Duplex? */ | |
8fc897b0 | 2189 | if (hw->autoneg_advertised & ADVERTISE_100_HALF) { |
1da177e4 LT |
2190 | DEBUGOUT("Advertise 100mb Half duplex\n"); |
2191 | mii_autoneg_adv_reg |= NWAY_AR_100TX_HD_CAPS; | |
2192 | } | |
2193 | ||
2194 | /* Do we want to advertise 100 Mb Full Duplex? */ | |
8fc897b0 | 2195 | if (hw->autoneg_advertised & ADVERTISE_100_FULL) { |
1da177e4 LT |
2196 | DEBUGOUT("Advertise 100mb Full duplex\n"); |
2197 | mii_autoneg_adv_reg |= NWAY_AR_100TX_FD_CAPS; | |
2198 | } | |
2199 | ||
2200 | /* We do not allow the Phy to advertise 1000 Mb Half Duplex */ | |
8fc897b0 | 2201 | if (hw->autoneg_advertised & ADVERTISE_1000_HALF) { |
1da177e4 LT |
2202 | DEBUGOUT("Advertise 1000mb Half duplex requested, request denied!\n"); |
2203 | } | |
2204 | ||
2205 | /* Do we want to advertise 1000 Mb Full Duplex? */ | |
8fc897b0 | 2206 | if (hw->autoneg_advertised & ADVERTISE_1000_FULL) { |
1da177e4 LT |
2207 | DEBUGOUT("Advertise 1000mb Full duplex\n"); |
2208 | mii_1000t_ctrl_reg |= CR_1000T_FD_CAPS; | |
cd94dd0b AK |
2209 | if (hw->phy_type == e1000_phy_ife) { |
2210 | DEBUGOUT("e1000_phy_ife is a 10/100 PHY. Gigabit speed is not supported.\n"); | |
2211 | } | |
1da177e4 LT |
2212 | } |
2213 | ||
2214 | /* Check for a software override of the flow control settings, and | |
2215 | * setup the PHY advertisement registers accordingly. If | |
2216 | * auto-negotiation is enabled, then software will have to set the | |
2217 | * "PAUSE" bits to the correct value in the Auto-Negotiation | |
2218 | * Advertisement Register (PHY_AUTONEG_ADV) and re-start auto-negotiation. | |
2219 | * | |
2220 | * The possible values of the "fc" parameter are: | |
2221 | * 0: Flow control is completely disabled | |
2222 | * 1: Rx flow control is enabled (we can receive pause frames | |
2223 | * but not send pause frames). | |
2224 | * 2: Tx flow control is enabled (we can send pause frames | |
2225 | * but we do not support receiving pause frames). | |
2226 | * 3: Both Rx and TX flow control (symmetric) are enabled. | |
2227 | * other: No software override. The flow control configuration | |
2228 | * in the EEPROM is used. | |
2229 | */ | |
2230 | switch (hw->fc) { | |
11241b10 | 2231 | case E1000_FC_NONE: /* 0 */ |
1da177e4 LT |
2232 | /* Flow control (RX & TX) is completely disabled by a |
2233 | * software over-ride. | |
2234 | */ | |
2235 | mii_autoneg_adv_reg &= ~(NWAY_AR_ASM_DIR | NWAY_AR_PAUSE); | |
2236 | break; | |
11241b10 | 2237 | case E1000_FC_RX_PAUSE: /* 1 */ |
1da177e4 LT |
2238 | /* RX Flow control is enabled, and TX Flow control is |
2239 | * disabled, by a software over-ride. | |
2240 | */ | |
2241 | /* Since there really isn't a way to advertise that we are | |
2242 | * capable of RX Pause ONLY, we will advertise that we | |
2243 | * support both symmetric and asymmetric RX PAUSE. Later | |
2244 | * (in e1000_config_fc_after_link_up) we will disable the | |
2245 | *hw's ability to send PAUSE frames. | |
2246 | */ | |
2247 | mii_autoneg_adv_reg |= (NWAY_AR_ASM_DIR | NWAY_AR_PAUSE); | |
2248 | break; | |
11241b10 | 2249 | case E1000_FC_TX_PAUSE: /* 2 */ |
1da177e4 LT |
2250 | /* TX Flow control is enabled, and RX Flow control is |
2251 | * disabled, by a software over-ride. | |
2252 | */ | |
2253 | mii_autoneg_adv_reg |= NWAY_AR_ASM_DIR; | |
2254 | mii_autoneg_adv_reg &= ~NWAY_AR_PAUSE; | |
2255 | break; | |
11241b10 | 2256 | case E1000_FC_FULL: /* 3 */ |
1da177e4 LT |
2257 | /* Flow control (both RX and TX) is enabled by a software |
2258 | * over-ride. | |
2259 | */ | |
2260 | mii_autoneg_adv_reg |= (NWAY_AR_ASM_DIR | NWAY_AR_PAUSE); | |
2261 | break; | |
2262 | default: | |
2263 | DEBUGOUT("Flow control param set incorrectly\n"); | |
2264 | return -E1000_ERR_CONFIG; | |
2265 | } | |
2266 | ||
2267 | ret_val = e1000_write_phy_reg(hw, PHY_AUTONEG_ADV, mii_autoneg_adv_reg); | |
8fc897b0 | 2268 | if (ret_val) |
1da177e4 LT |
2269 | return ret_val; |
2270 | ||
2271 | DEBUGOUT1("Auto-Neg Advertising %x\n", mii_autoneg_adv_reg); | |
2272 | ||
cd94dd0b AK |
2273 | if (hw->phy_type != e1000_phy_ife) { |
2274 | ret_val = e1000_write_phy_reg(hw, PHY_1000T_CTRL, mii_1000t_ctrl_reg); | |
2275 | if (ret_val) | |
2276 | return ret_val; | |
2277 | } | |
1da177e4 LT |
2278 | |
2279 | return E1000_SUCCESS; | |
2280 | } | |
2281 | ||
2282 | /****************************************************************************** | |
2283 | * Force PHY speed and duplex settings to hw->forced_speed_duplex | |
2284 | * | |
2285 | * hw - Struct containing variables accessed by shared code | |
2286 | ******************************************************************************/ | |
406874a7 | 2287 | static s32 |
1da177e4 LT |
2288 | e1000_phy_force_speed_duplex(struct e1000_hw *hw) |
2289 | { | |
406874a7 JP |
2290 | u32 ctrl; |
2291 | s32 ret_val; | |
2292 | u16 mii_ctrl_reg; | |
2293 | u16 mii_status_reg; | |
2294 | u16 phy_data; | |
2295 | u16 i; | |
1da177e4 LT |
2296 | |
2297 | DEBUGFUNC("e1000_phy_force_speed_duplex"); | |
2298 | ||
2299 | /* Turn off Flow control if we are forcing speed and duplex. */ | |
11241b10 | 2300 | hw->fc = E1000_FC_NONE; |
1da177e4 LT |
2301 | |
2302 | DEBUGOUT1("hw->fc = %d\n", hw->fc); | |
2303 | ||
2304 | /* Read the Device Control Register. */ | |
2305 | ctrl = E1000_READ_REG(hw, CTRL); | |
2306 | ||
2307 | /* Set the bits to Force Speed and Duplex in the Device Ctrl Reg. */ | |
2308 | ctrl |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); | |
2309 | ctrl &= ~(DEVICE_SPEED_MASK); | |
2310 | ||
2311 | /* Clear the Auto Speed Detect Enable bit. */ | |
2312 | ctrl &= ~E1000_CTRL_ASDE; | |
2313 | ||
2314 | /* Read the MII Control Register. */ | |
2315 | ret_val = e1000_read_phy_reg(hw, PHY_CTRL, &mii_ctrl_reg); | |
8fc897b0 | 2316 | if (ret_val) |
1da177e4 LT |
2317 | return ret_val; |
2318 | ||
2319 | /* We need to disable autoneg in order to force link and duplex. */ | |
2320 | ||
2321 | mii_ctrl_reg &= ~MII_CR_AUTO_NEG_EN; | |
2322 | ||
2323 | /* Are we forcing Full or Half Duplex? */ | |
8fc897b0 AK |
2324 | if (hw->forced_speed_duplex == e1000_100_full || |
2325 | hw->forced_speed_duplex == e1000_10_full) { | |
1da177e4 LT |
2326 | /* We want to force full duplex so we SET the full duplex bits in the |
2327 | * Device and MII Control Registers. | |
2328 | */ | |
2329 | ctrl |= E1000_CTRL_FD; | |
2330 | mii_ctrl_reg |= MII_CR_FULL_DUPLEX; | |
2331 | DEBUGOUT("Full Duplex\n"); | |
2332 | } else { | |
2333 | /* We want to force half duplex so we CLEAR the full duplex bits in | |
2334 | * the Device and MII Control Registers. | |
2335 | */ | |
2336 | ctrl &= ~E1000_CTRL_FD; | |
2337 | mii_ctrl_reg &= ~MII_CR_FULL_DUPLEX; | |
2338 | DEBUGOUT("Half Duplex\n"); | |
2339 | } | |
2340 | ||
2341 | /* Are we forcing 100Mbps??? */ | |
8fc897b0 | 2342 | if (hw->forced_speed_duplex == e1000_100_full || |
1da177e4 LT |
2343 | hw->forced_speed_duplex == e1000_100_half) { |
2344 | /* Set the 100Mb bit and turn off the 1000Mb and 10Mb bits. */ | |
2345 | ctrl |= E1000_CTRL_SPD_100; | |
2346 | mii_ctrl_reg |= MII_CR_SPEED_100; | |
2347 | mii_ctrl_reg &= ~(MII_CR_SPEED_1000 | MII_CR_SPEED_10); | |
2348 | DEBUGOUT("Forcing 100mb "); | |
2349 | } else { | |
2350 | /* Set the 10Mb bit and turn off the 1000Mb and 100Mb bits. */ | |
2351 | ctrl &= ~(E1000_CTRL_SPD_1000 | E1000_CTRL_SPD_100); | |
2352 | mii_ctrl_reg |= MII_CR_SPEED_10; | |
2353 | mii_ctrl_reg &= ~(MII_CR_SPEED_1000 | MII_CR_SPEED_100); | |
2354 | DEBUGOUT("Forcing 10mb "); | |
2355 | } | |
2356 | ||
2357 | e1000_config_collision_dist(hw); | |
2358 | ||
2359 | /* Write the configured values back to the Device Control Reg. */ | |
2360 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
2361 | ||
6418ecc6 JK |
2362 | if ((hw->phy_type == e1000_phy_m88) || |
2363 | (hw->phy_type == e1000_phy_gg82563)) { | |
1da177e4 | 2364 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); |
8fc897b0 | 2365 | if (ret_val) |
1da177e4 LT |
2366 | return ret_val; |
2367 | ||
2368 | /* Clear Auto-Crossover to force MDI manually. M88E1000 requires MDI | |
2369 | * forced whenever speed are duplex are forced. | |
2370 | */ | |
2371 | phy_data &= ~M88E1000_PSCR_AUTO_X_MODE; | |
2372 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data); | |
8fc897b0 | 2373 | if (ret_val) |
1da177e4 LT |
2374 | return ret_val; |
2375 | ||
2376 | DEBUGOUT1("M88E1000 PSCR: %x \n", phy_data); | |
2377 | ||
2378 | /* Need to reset the PHY or these changes will be ignored */ | |
2379 | mii_ctrl_reg |= MII_CR_RESET; | |
90fb5135 | 2380 | |
cd94dd0b AK |
2381 | /* Disable MDI-X support for 10/100 */ |
2382 | } else if (hw->phy_type == e1000_phy_ife) { | |
2383 | ret_val = e1000_read_phy_reg(hw, IFE_PHY_MDIX_CONTROL, &phy_data); | |
2384 | if (ret_val) | |
2385 | return ret_val; | |
2386 | ||
2387 | phy_data &= ~IFE_PMC_AUTO_MDIX; | |
2388 | phy_data &= ~IFE_PMC_FORCE_MDIX; | |
2389 | ||
2390 | ret_val = e1000_write_phy_reg(hw, IFE_PHY_MDIX_CONTROL, phy_data); | |
2391 | if (ret_val) | |
2392 | return ret_val; | |
90fb5135 | 2393 | |
1da177e4 LT |
2394 | } else { |
2395 | /* Clear Auto-Crossover to force MDI manually. IGP requires MDI | |
2396 | * forced whenever speed or duplex are forced. | |
2397 | */ | |
2398 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, &phy_data); | |
8fc897b0 | 2399 | if (ret_val) |
1da177e4 LT |
2400 | return ret_val; |
2401 | ||
2402 | phy_data &= ~IGP01E1000_PSCR_AUTO_MDIX; | |
2403 | phy_data &= ~IGP01E1000_PSCR_FORCE_MDI_MDIX; | |
2404 | ||
2405 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CTRL, phy_data); | |
8fc897b0 | 2406 | if (ret_val) |
1da177e4 LT |
2407 | return ret_val; |
2408 | } | |
2409 | ||
2410 | /* Write back the modified PHY MII control register. */ | |
2411 | ret_val = e1000_write_phy_reg(hw, PHY_CTRL, mii_ctrl_reg); | |
8fc897b0 | 2412 | if (ret_val) |
1da177e4 LT |
2413 | return ret_val; |
2414 | ||
2415 | udelay(1); | |
2416 | ||
2417 | /* The wait_autoneg_complete flag may be a little misleading here. | |
2418 | * Since we are forcing speed and duplex, Auto-Neg is not enabled. | |
2419 | * But we do want to delay for a period while forcing only so we | |
2420 | * don't generate false No Link messages. So we will wait here | |
2421 | * only if the user has set wait_autoneg_complete to 1, which is | |
2422 | * the default. | |
2423 | */ | |
8fc897b0 | 2424 | if (hw->wait_autoneg_complete) { |
1da177e4 LT |
2425 | /* We will wait for autoneg to complete. */ |
2426 | DEBUGOUT("Waiting for forced speed/duplex link.\n"); | |
2427 | mii_status_reg = 0; | |
2428 | ||
2429 | /* We will wait for autoneg to complete or 4.5 seconds to expire. */ | |
8fc897b0 | 2430 | for (i = PHY_FORCE_TIME; i > 0; i--) { |
1da177e4 LT |
2431 | /* Read the MII Status Register and wait for Auto-Neg Complete bit |
2432 | * to be set. | |
2433 | */ | |
2434 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 2435 | if (ret_val) |
1da177e4 LT |
2436 | return ret_val; |
2437 | ||
2438 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 2439 | if (ret_val) |
1da177e4 LT |
2440 | return ret_val; |
2441 | ||
8fc897b0 | 2442 | if (mii_status_reg & MII_SR_LINK_STATUS) break; |
f8ec4733 | 2443 | msleep(100); |
1da177e4 | 2444 | } |
8fc897b0 | 2445 | if ((i == 0) && |
6418ecc6 JK |
2446 | ((hw->phy_type == e1000_phy_m88) || |
2447 | (hw->phy_type == e1000_phy_gg82563))) { | |
1da177e4 LT |
2448 | /* We didn't get link. Reset the DSP and wait again for link. */ |
2449 | ret_val = e1000_phy_reset_dsp(hw); | |
8fc897b0 | 2450 | if (ret_val) { |
1da177e4 LT |
2451 | DEBUGOUT("Error Resetting PHY DSP\n"); |
2452 | return ret_val; | |
2453 | } | |
2454 | } | |
2455 | /* This loop will early-out if the link condition has been met. */ | |
8fc897b0 AK |
2456 | for (i = PHY_FORCE_TIME; i > 0; i--) { |
2457 | if (mii_status_reg & MII_SR_LINK_STATUS) break; | |
f8ec4733 | 2458 | msleep(100); |
1da177e4 LT |
2459 | /* Read the MII Status Register and wait for Auto-Neg Complete bit |
2460 | * to be set. | |
2461 | */ | |
2462 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 2463 | if (ret_val) |
1da177e4 LT |
2464 | return ret_val; |
2465 | ||
2466 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 2467 | if (ret_val) |
1da177e4 LT |
2468 | return ret_val; |
2469 | } | |
2470 | } | |
2471 | ||
2472 | if (hw->phy_type == e1000_phy_m88) { | |
2473 | /* Because we reset the PHY above, we need to re-force TX_CLK in the | |
2474 | * Extended PHY Specific Control Register to 25MHz clock. This value | |
2475 | * defaults back to a 2.5MHz clock when the PHY is reset. | |
2476 | */ | |
2477 | ret_val = e1000_read_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_data); | |
8fc897b0 | 2478 | if (ret_val) |
1da177e4 LT |
2479 | return ret_val; |
2480 | ||
2481 | phy_data |= M88E1000_EPSCR_TX_CLK_25; | |
2482 | ret_val = e1000_write_phy_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, phy_data); | |
8fc897b0 | 2483 | if (ret_val) |
1da177e4 LT |
2484 | return ret_val; |
2485 | ||
2486 | /* In addition, because of the s/w reset above, we need to enable CRS on | |
2487 | * TX. This must be set for both full and half duplex operation. | |
2488 | */ | |
2489 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); | |
8fc897b0 | 2490 | if (ret_val) |
1da177e4 LT |
2491 | return ret_val; |
2492 | ||
2493 | phy_data |= M88E1000_PSCR_ASSERT_CRS_ON_TX; | |
2494 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data); | |
8fc897b0 | 2495 | if (ret_val) |
1da177e4 LT |
2496 | return ret_val; |
2497 | ||
8fc897b0 AK |
2498 | if ((hw->mac_type == e1000_82544 || hw->mac_type == e1000_82543) && |
2499 | (!hw->autoneg) && (hw->forced_speed_duplex == e1000_10_full || | |
2500 | hw->forced_speed_duplex == e1000_10_half)) { | |
1da177e4 | 2501 | ret_val = e1000_polarity_reversal_workaround(hw); |
8fc897b0 | 2502 | if (ret_val) |
1da177e4 LT |
2503 | return ret_val; |
2504 | } | |
6418ecc6 JK |
2505 | } else if (hw->phy_type == e1000_phy_gg82563) { |
2506 | /* The TX_CLK of the Extended PHY Specific Control Register defaults | |
2507 | * to 2.5MHz on a reset. We need to re-force it back to 25MHz, if | |
2508 | * we're not in a forced 10/duplex configuration. */ | |
2509 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_MAC_SPEC_CTRL, &phy_data); | |
2510 | if (ret_val) | |
2511 | return ret_val; | |
2512 | ||
2513 | phy_data &= ~GG82563_MSCR_TX_CLK_MASK; | |
2514 | if ((hw->forced_speed_duplex == e1000_10_full) || | |
2515 | (hw->forced_speed_duplex == e1000_10_half)) | |
2516 | phy_data |= GG82563_MSCR_TX_CLK_10MBPS_2_5MHZ; | |
2517 | else | |
2518 | phy_data |= GG82563_MSCR_TX_CLK_100MBPS_25MHZ; | |
2519 | ||
2520 | /* Also due to the reset, we need to enable CRS on Tx. */ | |
2521 | phy_data |= GG82563_MSCR_ASSERT_CRS_ON_TX; | |
2522 | ||
2523 | ret_val = e1000_write_phy_reg(hw, GG82563_PHY_MAC_SPEC_CTRL, phy_data); | |
2524 | if (ret_val) | |
2525 | return ret_val; | |
1da177e4 LT |
2526 | } |
2527 | return E1000_SUCCESS; | |
2528 | } | |
2529 | ||
2530 | /****************************************************************************** | |
2531 | * Sets the collision distance in the Transmit Control register | |
2532 | * | |
2533 | * hw - Struct containing variables accessed by shared code | |
2534 | * | |
2535 | * Link should have been established previously. Reads the speed and duplex | |
2536 | * information from the Device Status register. | |
2537 | ******************************************************************************/ | |
2538 | void | |
2539 | e1000_config_collision_dist(struct e1000_hw *hw) | |
2540 | { | |
406874a7 | 2541 | u32 tctl, coll_dist; |
1da177e4 LT |
2542 | |
2543 | DEBUGFUNC("e1000_config_collision_dist"); | |
2544 | ||
0fadb059 JK |
2545 | if (hw->mac_type < e1000_82543) |
2546 | coll_dist = E1000_COLLISION_DISTANCE_82542; | |
2547 | else | |
2548 | coll_dist = E1000_COLLISION_DISTANCE; | |
2549 | ||
1da177e4 LT |
2550 | tctl = E1000_READ_REG(hw, TCTL); |
2551 | ||
2552 | tctl &= ~E1000_TCTL_COLD; | |
0fadb059 | 2553 | tctl |= coll_dist << E1000_COLD_SHIFT; |
1da177e4 LT |
2554 | |
2555 | E1000_WRITE_REG(hw, TCTL, tctl); | |
2556 | E1000_WRITE_FLUSH(hw); | |
2557 | } | |
2558 | ||
2559 | /****************************************************************************** | |
2560 | * Sets MAC speed and duplex settings to reflect the those in the PHY | |
2561 | * | |
2562 | * hw - Struct containing variables accessed by shared code | |
2563 | * mii_reg - data to write to the MII control register | |
2564 | * | |
2565 | * The contents of the PHY register containing the needed information need to | |
2566 | * be passed in. | |
2567 | ******************************************************************************/ | |
406874a7 | 2568 | static s32 |
1da177e4 LT |
2569 | e1000_config_mac_to_phy(struct e1000_hw *hw) |
2570 | { | |
406874a7 JP |
2571 | u32 ctrl; |
2572 | s32 ret_val; | |
2573 | u16 phy_data; | |
1da177e4 LT |
2574 | |
2575 | DEBUGFUNC("e1000_config_mac_to_phy"); | |
2576 | ||
76c224bc | 2577 | /* 82544 or newer MAC, Auto Speed Detection takes care of |
2d7edb92 MC |
2578 | * MAC speed/duplex configuration.*/ |
2579 | if (hw->mac_type >= e1000_82544) | |
2580 | return E1000_SUCCESS; | |
2581 | ||
1da177e4 LT |
2582 | /* Read the Device Control Register and set the bits to Force Speed |
2583 | * and Duplex. | |
2584 | */ | |
2585 | ctrl = E1000_READ_REG(hw, CTRL); | |
2586 | ctrl |= (E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); | |
2587 | ctrl &= ~(E1000_CTRL_SPD_SEL | E1000_CTRL_ILOS); | |
2588 | ||
2589 | /* Set up duplex in the Device Control and Transmit Control | |
2590 | * registers depending on negotiated values. | |
2591 | */ | |
2d7edb92 | 2592 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data); |
8fc897b0 | 2593 | if (ret_val) |
2d7edb92 | 2594 | return ret_val; |
1da177e4 | 2595 | |
8fc897b0 | 2596 | if (phy_data & M88E1000_PSSR_DPLX) |
2d7edb92 | 2597 | ctrl |= E1000_CTRL_FD; |
76c224bc | 2598 | else |
2d7edb92 | 2599 | ctrl &= ~E1000_CTRL_FD; |
1da177e4 | 2600 | |
2d7edb92 | 2601 | e1000_config_collision_dist(hw); |
1da177e4 | 2602 | |
2d7edb92 MC |
2603 | /* Set up speed in the Device Control register depending on |
2604 | * negotiated values. | |
2605 | */ | |
8fc897b0 | 2606 | if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_1000MBS) |
2d7edb92 | 2607 | ctrl |= E1000_CTRL_SPD_1000; |
8fc897b0 | 2608 | else if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_100MBS) |
2d7edb92 | 2609 | ctrl |= E1000_CTRL_SPD_100; |
1da177e4 | 2610 | |
1da177e4 LT |
2611 | /* Write the configured values back to the Device Control Reg. */ |
2612 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
2613 | return E1000_SUCCESS; | |
2614 | } | |
2615 | ||
2616 | /****************************************************************************** | |
2617 | * Forces the MAC's flow control settings. | |
2618 | * | |
2619 | * hw - Struct containing variables accessed by shared code | |
2620 | * | |
2621 | * Sets the TFCE and RFCE bits in the device control register to reflect | |
2622 | * the adapter settings. TFCE and RFCE need to be explicitly set by | |
2623 | * software when a Copper PHY is used because autonegotiation is managed | |
2624 | * by the PHY rather than the MAC. Software must also configure these | |
2625 | * bits when link is forced on a fiber connection. | |
2626 | *****************************************************************************/ | |
406874a7 | 2627 | s32 |
1da177e4 LT |
2628 | e1000_force_mac_fc(struct e1000_hw *hw) |
2629 | { | |
406874a7 | 2630 | u32 ctrl; |
1da177e4 LT |
2631 | |
2632 | DEBUGFUNC("e1000_force_mac_fc"); | |
2633 | ||
2634 | /* Get the current configuration of the Device Control Register */ | |
2635 | ctrl = E1000_READ_REG(hw, CTRL); | |
2636 | ||
2637 | /* Because we didn't get link via the internal auto-negotiation | |
2638 | * mechanism (we either forced link or we got link via PHY | |
2639 | * auto-neg), we have to manually enable/disable transmit an | |
2640 | * receive flow control. | |
2641 | * | |
2642 | * The "Case" statement below enables/disable flow control | |
2643 | * according to the "hw->fc" parameter. | |
2644 | * | |
2645 | * The possible values of the "fc" parameter are: | |
2646 | * 0: Flow control is completely disabled | |
2647 | * 1: Rx flow control is enabled (we can receive pause | |
2648 | * frames but not send pause frames). | |
2649 | * 2: Tx flow control is enabled (we can send pause frames | |
2650 | * frames but we do not receive pause frames). | |
2651 | * 3: Both Rx and TX flow control (symmetric) is enabled. | |
2652 | * other: No other values should be possible at this point. | |
2653 | */ | |
2654 | ||
2655 | switch (hw->fc) { | |
11241b10 | 2656 | case E1000_FC_NONE: |
1da177e4 LT |
2657 | ctrl &= (~(E1000_CTRL_TFCE | E1000_CTRL_RFCE)); |
2658 | break; | |
11241b10 | 2659 | case E1000_FC_RX_PAUSE: |
1da177e4 LT |
2660 | ctrl &= (~E1000_CTRL_TFCE); |
2661 | ctrl |= E1000_CTRL_RFCE; | |
2662 | break; | |
11241b10 | 2663 | case E1000_FC_TX_PAUSE: |
1da177e4 LT |
2664 | ctrl &= (~E1000_CTRL_RFCE); |
2665 | ctrl |= E1000_CTRL_TFCE; | |
2666 | break; | |
11241b10 | 2667 | case E1000_FC_FULL: |
1da177e4 LT |
2668 | ctrl |= (E1000_CTRL_TFCE | E1000_CTRL_RFCE); |
2669 | break; | |
2670 | default: | |
2671 | DEBUGOUT("Flow control param set incorrectly\n"); | |
2672 | return -E1000_ERR_CONFIG; | |
2673 | } | |
2674 | ||
2675 | /* Disable TX Flow Control for 82542 (rev 2.0) */ | |
8fc897b0 | 2676 | if (hw->mac_type == e1000_82542_rev2_0) |
1da177e4 LT |
2677 | ctrl &= (~E1000_CTRL_TFCE); |
2678 | ||
2679 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
2680 | return E1000_SUCCESS; | |
2681 | } | |
2682 | ||
2683 | /****************************************************************************** | |
2684 | * Configures flow control settings after link is established | |
2685 | * | |
2686 | * hw - Struct containing variables accessed by shared code | |
2687 | * | |
2688 | * Should be called immediately after a valid link has been established. | |
2689 | * Forces MAC flow control settings if link was forced. When in MII/GMII mode | |
2690 | * and autonegotiation is enabled, the MAC flow control settings will be set | |
2691 | * based on the flow control negotiated by the PHY. In TBI mode, the TFCE | |
2692 | * and RFCE bits will be automaticaly set to the negotiated flow control mode. | |
2693 | *****************************************************************************/ | |
406874a7 | 2694 | static s32 |
1da177e4 LT |
2695 | e1000_config_fc_after_link_up(struct e1000_hw *hw) |
2696 | { | |
406874a7 JP |
2697 | s32 ret_val; |
2698 | u16 mii_status_reg; | |
2699 | u16 mii_nway_adv_reg; | |
2700 | u16 mii_nway_lp_ability_reg; | |
2701 | u16 speed; | |
2702 | u16 duplex; | |
1da177e4 LT |
2703 | |
2704 | DEBUGFUNC("e1000_config_fc_after_link_up"); | |
2705 | ||
2706 | /* Check for the case where we have fiber media and auto-neg failed | |
2707 | * so we had to force link. In this case, we need to force the | |
2708 | * configuration of the MAC to match the "fc" parameter. | |
2709 | */ | |
8fc897b0 AK |
2710 | if (((hw->media_type == e1000_media_type_fiber) && (hw->autoneg_failed)) || |
2711 | ((hw->media_type == e1000_media_type_internal_serdes) && | |
2712 | (hw->autoneg_failed)) || | |
2713 | ((hw->media_type == e1000_media_type_copper) && (!hw->autoneg))) { | |
1da177e4 | 2714 | ret_val = e1000_force_mac_fc(hw); |
8fc897b0 | 2715 | if (ret_val) { |
1da177e4 LT |
2716 | DEBUGOUT("Error forcing flow control settings\n"); |
2717 | return ret_val; | |
2718 | } | |
2719 | } | |
2720 | ||
2721 | /* Check for the case where we have copper media and auto-neg is | |
2722 | * enabled. In this case, we need to check and see if Auto-Neg | |
2723 | * has completed, and if so, how the PHY and link partner has | |
2724 | * flow control configured. | |
2725 | */ | |
8fc897b0 | 2726 | if ((hw->media_type == e1000_media_type_copper) && hw->autoneg) { |
1da177e4 LT |
2727 | /* Read the MII Status Register and check to see if AutoNeg |
2728 | * has completed. We read this twice because this reg has | |
2729 | * some "sticky" (latched) bits. | |
2730 | */ | |
2731 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 2732 | if (ret_val) |
1da177e4 LT |
2733 | return ret_val; |
2734 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 2735 | if (ret_val) |
1da177e4 LT |
2736 | return ret_val; |
2737 | ||
8fc897b0 | 2738 | if (mii_status_reg & MII_SR_AUTONEG_COMPLETE) { |
1da177e4 LT |
2739 | /* The AutoNeg process has completed, so we now need to |
2740 | * read both the Auto Negotiation Advertisement Register | |
2741 | * (Address 4) and the Auto_Negotiation Base Page Ability | |
2742 | * Register (Address 5) to determine how flow control was | |
2743 | * negotiated. | |
2744 | */ | |
2745 | ret_val = e1000_read_phy_reg(hw, PHY_AUTONEG_ADV, | |
2746 | &mii_nway_adv_reg); | |
8fc897b0 | 2747 | if (ret_val) |
1da177e4 LT |
2748 | return ret_val; |
2749 | ret_val = e1000_read_phy_reg(hw, PHY_LP_ABILITY, | |
2750 | &mii_nway_lp_ability_reg); | |
8fc897b0 | 2751 | if (ret_val) |
1da177e4 LT |
2752 | return ret_val; |
2753 | ||
2754 | /* Two bits in the Auto Negotiation Advertisement Register | |
2755 | * (Address 4) and two bits in the Auto Negotiation Base | |
2756 | * Page Ability Register (Address 5) determine flow control | |
2757 | * for both the PHY and the link partner. The following | |
2758 | * table, taken out of the IEEE 802.3ab/D6.0 dated March 25, | |
2759 | * 1999, describes these PAUSE resolution bits and how flow | |
2760 | * control is determined based upon these settings. | |
2761 | * NOTE: DC = Don't Care | |
2762 | * | |
2763 | * LOCAL DEVICE | LINK PARTNER | |
2764 | * PAUSE | ASM_DIR | PAUSE | ASM_DIR | NIC Resolution | |
2765 | *-------|---------|-------|---------|-------------------- | |
11241b10 JK |
2766 | * 0 | 0 | DC | DC | E1000_FC_NONE |
2767 | * 0 | 1 | 0 | DC | E1000_FC_NONE | |
2768 | * 0 | 1 | 1 | 0 | E1000_FC_NONE | |
2769 | * 0 | 1 | 1 | 1 | E1000_FC_TX_PAUSE | |
2770 | * 1 | 0 | 0 | DC | E1000_FC_NONE | |
2771 | * 1 | DC | 1 | DC | E1000_FC_FULL | |
2772 | * 1 | 1 | 0 | 0 | E1000_FC_NONE | |
2773 | * 1 | 1 | 0 | 1 | E1000_FC_RX_PAUSE | |
1da177e4 LT |
2774 | * |
2775 | */ | |
2776 | /* Are both PAUSE bits set to 1? If so, this implies | |
2777 | * Symmetric Flow Control is enabled at both ends. The | |
2778 | * ASM_DIR bits are irrelevant per the spec. | |
2779 | * | |
2780 | * For Symmetric Flow Control: | |
2781 | * | |
2782 | * LOCAL DEVICE | LINK PARTNER | |
2783 | * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result | |
2784 | *-------|---------|-------|---------|-------------------- | |
11241b10 | 2785 | * 1 | DC | 1 | DC | E1000_FC_FULL |
1da177e4 LT |
2786 | * |
2787 | */ | |
8fc897b0 AK |
2788 | if ((mii_nway_adv_reg & NWAY_AR_PAUSE) && |
2789 | (mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE)) { | |
1da177e4 LT |
2790 | /* Now we need to check if the user selected RX ONLY |
2791 | * of pause frames. In this case, we had to advertise | |
2792 | * FULL flow control because we could not advertise RX | |
2793 | * ONLY. Hence, we must now check to see if we need to | |
2794 | * turn OFF the TRANSMISSION of PAUSE frames. | |
2795 | */ | |
11241b10 JK |
2796 | if (hw->original_fc == E1000_FC_FULL) { |
2797 | hw->fc = E1000_FC_FULL; | |
a42a507c | 2798 | DEBUGOUT("Flow Control = FULL.\n"); |
1da177e4 | 2799 | } else { |
11241b10 | 2800 | hw->fc = E1000_FC_RX_PAUSE; |
a42a507c | 2801 | DEBUGOUT("Flow Control = RX PAUSE frames only.\n"); |
1da177e4 LT |
2802 | } |
2803 | } | |
2804 | /* For receiving PAUSE frames ONLY. | |
2805 | * | |
2806 | * LOCAL DEVICE | LINK PARTNER | |
2807 | * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result | |
2808 | *-------|---------|-------|---------|-------------------- | |
11241b10 | 2809 | * 0 | 1 | 1 | 1 | E1000_FC_TX_PAUSE |
1da177e4 LT |
2810 | * |
2811 | */ | |
8fc897b0 AK |
2812 | else if (!(mii_nway_adv_reg & NWAY_AR_PAUSE) && |
2813 | (mii_nway_adv_reg & NWAY_AR_ASM_DIR) && | |
2814 | (mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE) && | |
2815 | (mii_nway_lp_ability_reg & NWAY_LPAR_ASM_DIR)) { | |
11241b10 | 2816 | hw->fc = E1000_FC_TX_PAUSE; |
a42a507c | 2817 | DEBUGOUT("Flow Control = TX PAUSE frames only.\n"); |
1da177e4 LT |
2818 | } |
2819 | /* For transmitting PAUSE frames ONLY. | |
2820 | * | |
2821 | * LOCAL DEVICE | LINK PARTNER | |
2822 | * PAUSE | ASM_DIR | PAUSE | ASM_DIR | Result | |
2823 | *-------|---------|-------|---------|-------------------- | |
11241b10 | 2824 | * 1 | 1 | 0 | 1 | E1000_FC_RX_PAUSE |
1da177e4 LT |
2825 | * |
2826 | */ | |
8fc897b0 AK |
2827 | else if ((mii_nway_adv_reg & NWAY_AR_PAUSE) && |
2828 | (mii_nway_adv_reg & NWAY_AR_ASM_DIR) && | |
2829 | !(mii_nway_lp_ability_reg & NWAY_LPAR_PAUSE) && | |
2830 | (mii_nway_lp_ability_reg & NWAY_LPAR_ASM_DIR)) { | |
11241b10 | 2831 | hw->fc = E1000_FC_RX_PAUSE; |
a42a507c | 2832 | DEBUGOUT("Flow Control = RX PAUSE frames only.\n"); |
1da177e4 LT |
2833 | } |
2834 | /* Per the IEEE spec, at this point flow control should be | |
2835 | * disabled. However, we want to consider that we could | |
2836 | * be connected to a legacy switch that doesn't advertise | |
2837 | * desired flow control, but can be forced on the link | |
2838 | * partner. So if we advertised no flow control, that is | |
2839 | * what we will resolve to. If we advertised some kind of | |
2840 | * receive capability (Rx Pause Only or Full Flow Control) | |
2841 | * and the link partner advertised none, we will configure | |
2842 | * ourselves to enable Rx Flow Control only. We can do | |
2843 | * this safely for two reasons: If the link partner really | |
2844 | * didn't want flow control enabled, and we enable Rx, no | |
2845 | * harm done since we won't be receiving any PAUSE frames | |
2846 | * anyway. If the intent on the link partner was to have | |
2847 | * flow control enabled, then by us enabling RX only, we | |
2848 | * can at least receive pause frames and process them. | |
2849 | * This is a good idea because in most cases, since we are | |
2850 | * predominantly a server NIC, more times than not we will | |
2851 | * be asked to delay transmission of packets than asking | |
2852 | * our link partner to pause transmission of frames. | |
2853 | */ | |
11241b10 JK |
2854 | else if ((hw->original_fc == E1000_FC_NONE || |
2855 | hw->original_fc == E1000_FC_TX_PAUSE) || | |
8fc897b0 | 2856 | hw->fc_strict_ieee) { |
11241b10 | 2857 | hw->fc = E1000_FC_NONE; |
a42a507c | 2858 | DEBUGOUT("Flow Control = NONE.\n"); |
1da177e4 | 2859 | } else { |
11241b10 | 2860 | hw->fc = E1000_FC_RX_PAUSE; |
a42a507c | 2861 | DEBUGOUT("Flow Control = RX PAUSE frames only.\n"); |
1da177e4 LT |
2862 | } |
2863 | ||
2864 | /* Now we need to do one last check... If we auto- | |
2865 | * negotiated to HALF DUPLEX, flow control should not be | |
2866 | * enabled per IEEE 802.3 spec. | |
2867 | */ | |
2868 | ret_val = e1000_get_speed_and_duplex(hw, &speed, &duplex); | |
8fc897b0 | 2869 | if (ret_val) { |
1da177e4 LT |
2870 | DEBUGOUT("Error getting link speed and duplex\n"); |
2871 | return ret_val; | |
2872 | } | |
2873 | ||
8fc897b0 | 2874 | if (duplex == HALF_DUPLEX) |
11241b10 | 2875 | hw->fc = E1000_FC_NONE; |
1da177e4 LT |
2876 | |
2877 | /* Now we call a subroutine to actually force the MAC | |
2878 | * controller to use the correct flow control settings. | |
2879 | */ | |
2880 | ret_val = e1000_force_mac_fc(hw); | |
8fc897b0 | 2881 | if (ret_val) { |
1da177e4 LT |
2882 | DEBUGOUT("Error forcing flow control settings\n"); |
2883 | return ret_val; | |
2884 | } | |
2885 | } else { | |
a42a507c | 2886 | DEBUGOUT("Copper PHY and Auto Neg has not completed.\n"); |
1da177e4 LT |
2887 | } |
2888 | } | |
2889 | return E1000_SUCCESS; | |
2890 | } | |
2891 | ||
2892 | /****************************************************************************** | |
2893 | * Checks to see if the link status of the hardware has changed. | |
2894 | * | |
2895 | * hw - Struct containing variables accessed by shared code | |
2896 | * | |
2897 | * Called by any function that needs to check the link status of the adapter. | |
2898 | *****************************************************************************/ | |
406874a7 | 2899 | s32 |
1da177e4 LT |
2900 | e1000_check_for_link(struct e1000_hw *hw) |
2901 | { | |
406874a7 JP |
2902 | u32 rxcw = 0; |
2903 | u32 ctrl; | |
2904 | u32 status; | |
2905 | u32 rctl; | |
2906 | u32 icr; | |
2907 | u32 signal = 0; | |
2908 | s32 ret_val; | |
2909 | u16 phy_data; | |
1da177e4 LT |
2910 | |
2911 | DEBUGFUNC("e1000_check_for_link"); | |
2912 | ||
2913 | ctrl = E1000_READ_REG(hw, CTRL); | |
2914 | status = E1000_READ_REG(hw, STATUS); | |
2915 | ||
2916 | /* On adapters with a MAC newer than 82544, SW Defineable pin 1 will be | |
2917 | * set when the optics detect a signal. On older adapters, it will be | |
2918 | * cleared when there is a signal. This applies to fiber media only. | |
2919 | */ | |
8fc897b0 AK |
2920 | if ((hw->media_type == e1000_media_type_fiber) || |
2921 | (hw->media_type == e1000_media_type_internal_serdes)) { | |
1da177e4 LT |
2922 | rxcw = E1000_READ_REG(hw, RXCW); |
2923 | ||
8fc897b0 | 2924 | if (hw->media_type == e1000_media_type_fiber) { |
1da177e4 | 2925 | signal = (hw->mac_type > e1000_82544) ? E1000_CTRL_SWDPIN1 : 0; |
8fc897b0 | 2926 | if (status & E1000_STATUS_LU) |
c3033b01 | 2927 | hw->get_link_status = false; |
1da177e4 LT |
2928 | } |
2929 | } | |
2930 | ||
2931 | /* If we have a copper PHY then we only want to go out to the PHY | |
2932 | * registers to see if Auto-Neg has completed and/or if our link | |
2933 | * status has changed. The get_link_status flag will be set if we | |
2934 | * receive a Link Status Change interrupt or we have Rx Sequence | |
2935 | * Errors. | |
2936 | */ | |
8fc897b0 | 2937 | if ((hw->media_type == e1000_media_type_copper) && hw->get_link_status) { |
1da177e4 LT |
2938 | /* First we want to see if the MII Status Register reports |
2939 | * link. If so, then we want to get the current speed/duplex | |
2940 | * of the PHY. | |
2941 | * Read the register twice since the link bit is sticky. | |
2942 | */ | |
2943 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); | |
8fc897b0 | 2944 | if (ret_val) |
1da177e4 LT |
2945 | return ret_val; |
2946 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); | |
8fc897b0 | 2947 | if (ret_val) |
1da177e4 LT |
2948 | return ret_val; |
2949 | ||
8fc897b0 | 2950 | if (phy_data & MII_SR_LINK_STATUS) { |
c3033b01 | 2951 | hw->get_link_status = false; |
1da177e4 LT |
2952 | /* Check if there was DownShift, must be checked immediately after |
2953 | * link-up */ | |
2954 | e1000_check_downshift(hw); | |
2955 | ||
2956 | /* If we are on 82544 or 82543 silicon and speed/duplex | |
2957 | * are forced to 10H or 10F, then we will implement the polarity | |
2958 | * reversal workaround. We disable interrupts first, and upon | |
2959 | * returning, place the devices interrupt state to its previous | |
2960 | * value except for the link status change interrupt which will | |
2961 | * happen due to the execution of this workaround. | |
2962 | */ | |
2963 | ||
8fc897b0 AK |
2964 | if ((hw->mac_type == e1000_82544 || hw->mac_type == e1000_82543) && |
2965 | (!hw->autoneg) && | |
2966 | (hw->forced_speed_duplex == e1000_10_full || | |
2967 | hw->forced_speed_duplex == e1000_10_half)) { | |
1da177e4 LT |
2968 | E1000_WRITE_REG(hw, IMC, 0xffffffff); |
2969 | ret_val = e1000_polarity_reversal_workaround(hw); | |
2970 | icr = E1000_READ_REG(hw, ICR); | |
2971 | E1000_WRITE_REG(hw, ICS, (icr & ~E1000_ICS_LSC)); | |
2972 | E1000_WRITE_REG(hw, IMS, IMS_ENABLE_MASK); | |
2973 | } | |
2974 | ||
2975 | } else { | |
2976 | /* No link detected */ | |
c3033b01 | 2977 | e1000_config_dsp_after_link_change(hw, false); |
1da177e4 LT |
2978 | return 0; |
2979 | } | |
2980 | ||
2981 | /* If we are forcing speed/duplex, then we simply return since | |
2982 | * we have already determined whether we have link or not. | |
2983 | */ | |
8fc897b0 | 2984 | if (!hw->autoneg) return -E1000_ERR_CONFIG; |
1da177e4 LT |
2985 | |
2986 | /* optimize the dsp settings for the igp phy */ | |
c3033b01 | 2987 | e1000_config_dsp_after_link_change(hw, true); |
1da177e4 LT |
2988 | |
2989 | /* We have a M88E1000 PHY and Auto-Neg is enabled. If we | |
2990 | * have Si on board that is 82544 or newer, Auto | |
2991 | * Speed Detection takes care of MAC speed/duplex | |
2992 | * configuration. So we only need to configure Collision | |
2993 | * Distance in the MAC. Otherwise, we need to force | |
2994 | * speed/duplex on the MAC to the current PHY speed/duplex | |
2995 | * settings. | |
2996 | */ | |
8fc897b0 | 2997 | if (hw->mac_type >= e1000_82544) |
1da177e4 LT |
2998 | e1000_config_collision_dist(hw); |
2999 | else { | |
3000 | ret_val = e1000_config_mac_to_phy(hw); | |
8fc897b0 | 3001 | if (ret_val) { |
1da177e4 LT |
3002 | DEBUGOUT("Error configuring MAC to PHY settings\n"); |
3003 | return ret_val; | |
3004 | } | |
3005 | } | |
3006 | ||
3007 | /* Configure Flow Control now that Auto-Neg has completed. First, we | |
3008 | * need to restore the desired flow control settings because we may | |
3009 | * have had to re-autoneg with a different link partner. | |
3010 | */ | |
3011 | ret_val = e1000_config_fc_after_link_up(hw); | |
8fc897b0 | 3012 | if (ret_val) { |
1da177e4 LT |
3013 | DEBUGOUT("Error configuring flow control\n"); |
3014 | return ret_val; | |
3015 | } | |
3016 | ||
3017 | /* At this point we know that we are on copper and we have | |
3018 | * auto-negotiated link. These are conditions for checking the link | |
3019 | * partner capability register. We use the link speed to determine if | |
3020 | * TBI compatibility needs to be turned on or off. If the link is not | |
3021 | * at gigabit speed, then TBI compatibility is not needed. If we are | |
3022 | * at gigabit speed, we turn on TBI compatibility. | |
3023 | */ | |
8fc897b0 | 3024 | if (hw->tbi_compatibility_en) { |
406874a7 | 3025 | u16 speed, duplex; |
592600a0 AK |
3026 | ret_val = e1000_get_speed_and_duplex(hw, &speed, &duplex); |
3027 | if (ret_val) { | |
3028 | DEBUGOUT("Error getting link speed and duplex\n"); | |
3029 | return ret_val; | |
3030 | } | |
3031 | if (speed != SPEED_1000) { | |
1da177e4 LT |
3032 | /* If link speed is not set to gigabit speed, we do not need |
3033 | * to enable TBI compatibility. | |
3034 | */ | |
8fc897b0 | 3035 | if (hw->tbi_compatibility_on) { |
1da177e4 LT |
3036 | /* If we previously were in the mode, turn it off. */ |
3037 | rctl = E1000_READ_REG(hw, RCTL); | |
3038 | rctl &= ~E1000_RCTL_SBP; | |
3039 | E1000_WRITE_REG(hw, RCTL, rctl); | |
c3033b01 | 3040 | hw->tbi_compatibility_on = false; |
1da177e4 LT |
3041 | } |
3042 | } else { | |
3043 | /* If TBI compatibility is was previously off, turn it on. For | |
3044 | * compatibility with a TBI link partner, we will store bad | |
3045 | * packets. Some frames have an additional byte on the end and | |
3046 | * will look like CRC errors to to the hardware. | |
3047 | */ | |
8fc897b0 | 3048 | if (!hw->tbi_compatibility_on) { |
c3033b01 | 3049 | hw->tbi_compatibility_on = true; |
1da177e4 LT |
3050 | rctl = E1000_READ_REG(hw, RCTL); |
3051 | rctl |= E1000_RCTL_SBP; | |
3052 | E1000_WRITE_REG(hw, RCTL, rctl); | |
3053 | } | |
3054 | } | |
3055 | } | |
3056 | } | |
3057 | /* If we don't have link (auto-negotiation failed or link partner cannot | |
3058 | * auto-negotiate), the cable is plugged in (we have signal), and our | |
3059 | * link partner is not trying to auto-negotiate with us (we are receiving | |
3060 | * idles or data), we need to force link up. We also need to give | |
3061 | * auto-negotiation time to complete, in case the cable was just plugged | |
3062 | * in. The autoneg_failed flag does this. | |
3063 | */ | |
8fc897b0 | 3064 | else if ((((hw->media_type == e1000_media_type_fiber) && |
1da177e4 | 3065 | ((ctrl & E1000_CTRL_SWDPIN1) == signal)) || |
8fc897b0 AK |
3066 | (hw->media_type == e1000_media_type_internal_serdes)) && |
3067 | (!(status & E1000_STATUS_LU)) && | |
3068 | (!(rxcw & E1000_RXCW_C))) { | |
3069 | if (hw->autoneg_failed == 0) { | |
1da177e4 LT |
3070 | hw->autoneg_failed = 1; |
3071 | return 0; | |
3072 | } | |
a42a507c | 3073 | DEBUGOUT("NOT RXing /C/, disable AutoNeg and force link.\n"); |
1da177e4 LT |
3074 | |
3075 | /* Disable auto-negotiation in the TXCW register */ | |
3076 | E1000_WRITE_REG(hw, TXCW, (hw->txcw & ~E1000_TXCW_ANE)); | |
3077 | ||
3078 | /* Force link-up and also force full-duplex. */ | |
3079 | ctrl = E1000_READ_REG(hw, CTRL); | |
3080 | ctrl |= (E1000_CTRL_SLU | E1000_CTRL_FD); | |
3081 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
3082 | ||
3083 | /* Configure Flow Control after forcing link up. */ | |
3084 | ret_val = e1000_config_fc_after_link_up(hw); | |
8fc897b0 | 3085 | if (ret_val) { |
1da177e4 LT |
3086 | DEBUGOUT("Error configuring flow control\n"); |
3087 | return ret_val; | |
3088 | } | |
3089 | } | |
3090 | /* If we are forcing link and we are receiving /C/ ordered sets, re-enable | |
3091 | * auto-negotiation in the TXCW register and disable forced link in the | |
3092 | * Device Control register in an attempt to auto-negotiate with our link | |
3093 | * partner. | |
3094 | */ | |
8fc897b0 AK |
3095 | else if (((hw->media_type == e1000_media_type_fiber) || |
3096 | (hw->media_type == e1000_media_type_internal_serdes)) && | |
3097 | (ctrl & E1000_CTRL_SLU) && (rxcw & E1000_RXCW_C)) { | |
a42a507c | 3098 | DEBUGOUT("RXing /C/, enable AutoNeg and stop forcing link.\n"); |
1da177e4 LT |
3099 | E1000_WRITE_REG(hw, TXCW, hw->txcw); |
3100 | E1000_WRITE_REG(hw, CTRL, (ctrl & ~E1000_CTRL_SLU)); | |
3101 | ||
c3033b01 | 3102 | hw->serdes_link_down = false; |
1da177e4 LT |
3103 | } |
3104 | /* If we force link for non-auto-negotiation switch, check link status | |
3105 | * based on MAC synchronization for internal serdes media type. | |
3106 | */ | |
8fc897b0 AK |
3107 | else if ((hw->media_type == e1000_media_type_internal_serdes) && |
3108 | !(E1000_TXCW_ANE & E1000_READ_REG(hw, TXCW))) { | |
1da177e4 LT |
3109 | /* SYNCH bit and IV bit are sticky. */ |
3110 | udelay(10); | |
8fc897b0 AK |
3111 | if (E1000_RXCW_SYNCH & E1000_READ_REG(hw, RXCW)) { |
3112 | if (!(rxcw & E1000_RXCW_IV)) { | |
c3033b01 | 3113 | hw->serdes_link_down = false; |
1da177e4 LT |
3114 | DEBUGOUT("SERDES: Link is up.\n"); |
3115 | } | |
3116 | } else { | |
c3033b01 | 3117 | hw->serdes_link_down = true; |
1da177e4 LT |
3118 | DEBUGOUT("SERDES: Link is down.\n"); |
3119 | } | |
3120 | } | |
8fc897b0 AK |
3121 | if ((hw->media_type == e1000_media_type_internal_serdes) && |
3122 | (E1000_TXCW_ANE & E1000_READ_REG(hw, TXCW))) { | |
1da177e4 LT |
3123 | hw->serdes_link_down = !(E1000_STATUS_LU & E1000_READ_REG(hw, STATUS)); |
3124 | } | |
3125 | return E1000_SUCCESS; | |
3126 | } | |
3127 | ||
3128 | /****************************************************************************** | |
3129 | * Detects the current speed and duplex settings of the hardware. | |
3130 | * | |
3131 | * hw - Struct containing variables accessed by shared code | |
3132 | * speed - Speed of the connection | |
3133 | * duplex - Duplex setting of the connection | |
3134 | *****************************************************************************/ | |
406874a7 | 3135 | s32 |
1da177e4 | 3136 | e1000_get_speed_and_duplex(struct e1000_hw *hw, |
406874a7 JP |
3137 | u16 *speed, |
3138 | u16 *duplex) | |
1da177e4 | 3139 | { |
406874a7 JP |
3140 | u32 status; |
3141 | s32 ret_val; | |
3142 | u16 phy_data; | |
1da177e4 LT |
3143 | |
3144 | DEBUGFUNC("e1000_get_speed_and_duplex"); | |
3145 | ||
8fc897b0 | 3146 | if (hw->mac_type >= e1000_82543) { |
1da177e4 | 3147 | status = E1000_READ_REG(hw, STATUS); |
8fc897b0 | 3148 | if (status & E1000_STATUS_SPEED_1000) { |
1da177e4 LT |
3149 | *speed = SPEED_1000; |
3150 | DEBUGOUT("1000 Mbs, "); | |
8fc897b0 | 3151 | } else if (status & E1000_STATUS_SPEED_100) { |
1da177e4 LT |
3152 | *speed = SPEED_100; |
3153 | DEBUGOUT("100 Mbs, "); | |
3154 | } else { | |
3155 | *speed = SPEED_10; | |
3156 | DEBUGOUT("10 Mbs, "); | |
3157 | } | |
3158 | ||
8fc897b0 | 3159 | if (status & E1000_STATUS_FD) { |
1da177e4 | 3160 | *duplex = FULL_DUPLEX; |
a42a507c | 3161 | DEBUGOUT("Full Duplex\n"); |
1da177e4 LT |
3162 | } else { |
3163 | *duplex = HALF_DUPLEX; | |
a42a507c | 3164 | DEBUGOUT(" Half Duplex\n"); |
1da177e4 LT |
3165 | } |
3166 | } else { | |
a42a507c | 3167 | DEBUGOUT("1000 Mbs, Full Duplex\n"); |
1da177e4 LT |
3168 | *speed = SPEED_1000; |
3169 | *duplex = FULL_DUPLEX; | |
3170 | } | |
3171 | ||
3172 | /* IGP01 PHY may advertise full duplex operation after speed downgrade even | |
3173 | * if it is operating at half duplex. Here we set the duplex settings to | |
3174 | * match the duplex in the link partner's capabilities. | |
3175 | */ | |
8fc897b0 | 3176 | if (hw->phy_type == e1000_phy_igp && hw->speed_downgraded) { |
1da177e4 | 3177 | ret_val = e1000_read_phy_reg(hw, PHY_AUTONEG_EXP, &phy_data); |
8fc897b0 | 3178 | if (ret_val) |
1da177e4 LT |
3179 | return ret_val; |
3180 | ||
8fc897b0 | 3181 | if (!(phy_data & NWAY_ER_LP_NWAY_CAPS)) |
1da177e4 LT |
3182 | *duplex = HALF_DUPLEX; |
3183 | else { | |
3184 | ret_val = e1000_read_phy_reg(hw, PHY_LP_ABILITY, &phy_data); | |
8fc897b0 | 3185 | if (ret_val) |
1da177e4 | 3186 | return ret_val; |
8fc897b0 | 3187 | if ((*speed == SPEED_100 && !(phy_data & NWAY_LPAR_100TX_FD_CAPS)) || |
1da177e4 LT |
3188 | (*speed == SPEED_10 && !(phy_data & NWAY_LPAR_10T_FD_CAPS))) |
3189 | *duplex = HALF_DUPLEX; | |
3190 | } | |
3191 | } | |
3192 | ||
76c224bc | 3193 | if ((hw->mac_type == e1000_80003es2lan) && |
6418ecc6 JK |
3194 | (hw->media_type == e1000_media_type_copper)) { |
3195 | if (*speed == SPEED_1000) | |
3196 | ret_val = e1000_configure_kmrn_for_1000(hw); | |
3197 | else | |
cd94dd0b AK |
3198 | ret_val = e1000_configure_kmrn_for_10_100(hw, *duplex); |
3199 | if (ret_val) | |
3200 | return ret_val; | |
3201 | } | |
3202 | ||
3203 | if ((hw->phy_type == e1000_phy_igp_3) && (*speed == SPEED_1000)) { | |
3204 | ret_val = e1000_kumeran_lock_loss_workaround(hw); | |
6418ecc6 JK |
3205 | if (ret_val) |
3206 | return ret_val; | |
3207 | } | |
3208 | ||
1da177e4 LT |
3209 | return E1000_SUCCESS; |
3210 | } | |
3211 | ||
3212 | /****************************************************************************** | |
3213 | * Blocks until autoneg completes or times out (~4.5 seconds) | |
3214 | * | |
3215 | * hw - Struct containing variables accessed by shared code | |
3216 | ******************************************************************************/ | |
406874a7 | 3217 | static s32 |
1da177e4 LT |
3218 | e1000_wait_autoneg(struct e1000_hw *hw) |
3219 | { | |
406874a7 JP |
3220 | s32 ret_val; |
3221 | u16 i; | |
3222 | u16 phy_data; | |
1da177e4 LT |
3223 | |
3224 | DEBUGFUNC("e1000_wait_autoneg"); | |
3225 | DEBUGOUT("Waiting for Auto-Neg to complete.\n"); | |
3226 | ||
3227 | /* We will wait for autoneg to complete or 4.5 seconds to expire. */ | |
8fc897b0 | 3228 | for (i = PHY_AUTO_NEG_TIME; i > 0; i--) { |
1da177e4 LT |
3229 | /* Read the MII Status Register and wait for Auto-Neg |
3230 | * Complete bit to be set. | |
3231 | */ | |
3232 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); | |
8fc897b0 | 3233 | if (ret_val) |
1da177e4 LT |
3234 | return ret_val; |
3235 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); | |
8fc897b0 | 3236 | if (ret_val) |
1da177e4 | 3237 | return ret_val; |
8fc897b0 | 3238 | if (phy_data & MII_SR_AUTONEG_COMPLETE) { |
1da177e4 LT |
3239 | return E1000_SUCCESS; |
3240 | } | |
f8ec4733 | 3241 | msleep(100); |
1da177e4 LT |
3242 | } |
3243 | return E1000_SUCCESS; | |
3244 | } | |
3245 | ||
3246 | /****************************************************************************** | |
3247 | * Raises the Management Data Clock | |
3248 | * | |
3249 | * hw - Struct containing variables accessed by shared code | |
3250 | * ctrl - Device control register's current value | |
3251 | ******************************************************************************/ | |
3252 | static void | |
3253 | e1000_raise_mdi_clk(struct e1000_hw *hw, | |
406874a7 | 3254 | u32 *ctrl) |
1da177e4 LT |
3255 | { |
3256 | /* Raise the clock input to the Management Data Clock (by setting the MDC | |
3257 | * bit), and then delay 10 microseconds. | |
3258 | */ | |
3259 | E1000_WRITE_REG(hw, CTRL, (*ctrl | E1000_CTRL_MDC)); | |
3260 | E1000_WRITE_FLUSH(hw); | |
3261 | udelay(10); | |
3262 | } | |
3263 | ||
3264 | /****************************************************************************** | |
3265 | * Lowers the Management Data Clock | |
3266 | * | |
3267 | * hw - Struct containing variables accessed by shared code | |
3268 | * ctrl - Device control register's current value | |
3269 | ******************************************************************************/ | |
3270 | static void | |
3271 | e1000_lower_mdi_clk(struct e1000_hw *hw, | |
406874a7 | 3272 | u32 *ctrl) |
1da177e4 LT |
3273 | { |
3274 | /* Lower the clock input to the Management Data Clock (by clearing the MDC | |
3275 | * bit), and then delay 10 microseconds. | |
3276 | */ | |
3277 | E1000_WRITE_REG(hw, CTRL, (*ctrl & ~E1000_CTRL_MDC)); | |
3278 | E1000_WRITE_FLUSH(hw); | |
3279 | udelay(10); | |
3280 | } | |
3281 | ||
3282 | /****************************************************************************** | |
3283 | * Shifts data bits out to the PHY | |
3284 | * | |
3285 | * hw - Struct containing variables accessed by shared code | |
3286 | * data - Data to send out to the PHY | |
3287 | * count - Number of bits to shift out | |
3288 | * | |
3289 | * Bits are shifted out in MSB to LSB order. | |
3290 | ******************************************************************************/ | |
3291 | static void | |
3292 | e1000_shift_out_mdi_bits(struct e1000_hw *hw, | |
406874a7 JP |
3293 | u32 data, |
3294 | u16 count) | |
1da177e4 | 3295 | { |
406874a7 JP |
3296 | u32 ctrl; |
3297 | u32 mask; | |
1da177e4 LT |
3298 | |
3299 | /* We need to shift "count" number of bits out to the PHY. So, the value | |
3300 | * in the "data" parameter will be shifted out to the PHY one bit at a | |
3301 | * time. In order to do this, "data" must be broken down into bits. | |
3302 | */ | |
3303 | mask = 0x01; | |
3304 | mask <<= (count - 1); | |
3305 | ||
3306 | ctrl = E1000_READ_REG(hw, CTRL); | |
3307 | ||
3308 | /* Set MDIO_DIR and MDC_DIR direction bits to be used as output pins. */ | |
3309 | ctrl |= (E1000_CTRL_MDIO_DIR | E1000_CTRL_MDC_DIR); | |
3310 | ||
8fc897b0 | 3311 | while (mask) { |
1da177e4 LT |
3312 | /* A "1" is shifted out to the PHY by setting the MDIO bit to "1" and |
3313 | * then raising and lowering the Management Data Clock. A "0" is | |
3314 | * shifted out to the PHY by setting the MDIO bit to "0" and then | |
3315 | * raising and lowering the clock. | |
3316 | */ | |
8fc897b0 AK |
3317 | if (data & mask) |
3318 | ctrl |= E1000_CTRL_MDIO; | |
3319 | else | |
3320 | ctrl &= ~E1000_CTRL_MDIO; | |
1da177e4 LT |
3321 | |
3322 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
3323 | E1000_WRITE_FLUSH(hw); | |
3324 | ||
3325 | udelay(10); | |
3326 | ||
3327 | e1000_raise_mdi_clk(hw, &ctrl); | |
3328 | e1000_lower_mdi_clk(hw, &ctrl); | |
3329 | ||
3330 | mask = mask >> 1; | |
3331 | } | |
3332 | } | |
3333 | ||
3334 | /****************************************************************************** | |
3335 | * Shifts data bits in from the PHY | |
3336 | * | |
3337 | * hw - Struct containing variables accessed by shared code | |
3338 | * | |
3339 | * Bits are shifted in in MSB to LSB order. | |
3340 | ******************************************************************************/ | |
406874a7 | 3341 | static u16 |
1da177e4 LT |
3342 | e1000_shift_in_mdi_bits(struct e1000_hw *hw) |
3343 | { | |
406874a7 JP |
3344 | u32 ctrl; |
3345 | u16 data = 0; | |
3346 | u8 i; | |
1da177e4 LT |
3347 | |
3348 | /* In order to read a register from the PHY, we need to shift in a total | |
3349 | * of 18 bits from the PHY. The first two bit (turnaround) times are used | |
3350 | * to avoid contention on the MDIO pin when a read operation is performed. | |
3351 | * These two bits are ignored by us and thrown away. Bits are "shifted in" | |
3352 | * by raising the input to the Management Data Clock (setting the MDC bit), | |
3353 | * and then reading the value of the MDIO bit. | |
3354 | */ | |
3355 | ctrl = E1000_READ_REG(hw, CTRL); | |
3356 | ||
3357 | /* Clear MDIO_DIR (SWDPIO1) to indicate this bit is to be used as input. */ | |
3358 | ctrl &= ~E1000_CTRL_MDIO_DIR; | |
3359 | ctrl &= ~E1000_CTRL_MDIO; | |
3360 | ||
3361 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
3362 | E1000_WRITE_FLUSH(hw); | |
3363 | ||
3364 | /* Raise and Lower the clock before reading in the data. This accounts for | |
3365 | * the turnaround bits. The first clock occurred when we clocked out the | |
3366 | * last bit of the Register Address. | |
3367 | */ | |
3368 | e1000_raise_mdi_clk(hw, &ctrl); | |
3369 | e1000_lower_mdi_clk(hw, &ctrl); | |
3370 | ||
8fc897b0 | 3371 | for (data = 0, i = 0; i < 16; i++) { |
1da177e4 LT |
3372 | data = data << 1; |
3373 | e1000_raise_mdi_clk(hw, &ctrl); | |
3374 | ctrl = E1000_READ_REG(hw, CTRL); | |
3375 | /* Check to see if we shifted in a "1". */ | |
8fc897b0 AK |
3376 | if (ctrl & E1000_CTRL_MDIO) |
3377 | data |= 1; | |
1da177e4 LT |
3378 | e1000_lower_mdi_clk(hw, &ctrl); |
3379 | } | |
3380 | ||
3381 | e1000_raise_mdi_clk(hw, &ctrl); | |
3382 | e1000_lower_mdi_clk(hw, &ctrl); | |
3383 | ||
3384 | return data; | |
3385 | } | |
3386 | ||
406874a7 JP |
3387 | static s32 |
3388 | e1000_swfw_sync_acquire(struct e1000_hw *hw, u16 mask) | |
6418ecc6 | 3389 | { |
406874a7 JP |
3390 | u32 swfw_sync = 0; |
3391 | u32 swmask = mask; | |
3392 | u32 fwmask = mask << 16; | |
3393 | s32 timeout = 200; | |
6418ecc6 JK |
3394 | |
3395 | DEBUGFUNC("e1000_swfw_sync_acquire"); | |
3396 | ||
cd94dd0b AK |
3397 | if (hw->swfwhw_semaphore_present) |
3398 | return e1000_get_software_flag(hw); | |
3399 | ||
6418ecc6 JK |
3400 | if (!hw->swfw_sync_present) |
3401 | return e1000_get_hw_eeprom_semaphore(hw); | |
3402 | ||
8fc897b0 | 3403 | while (timeout) { |
6418ecc6 JK |
3404 | if (e1000_get_hw_eeprom_semaphore(hw)) |
3405 | return -E1000_ERR_SWFW_SYNC; | |
3406 | ||
3407 | swfw_sync = E1000_READ_REG(hw, SW_FW_SYNC); | |
3408 | if (!(swfw_sync & (fwmask | swmask))) { | |
3409 | break; | |
3410 | } | |
3411 | ||
3412 | /* firmware currently using resource (fwmask) */ | |
3413 | /* or other software thread currently using resource (swmask) */ | |
3414 | e1000_put_hw_eeprom_semaphore(hw); | |
f8ec4733 | 3415 | mdelay(5); |
6418ecc6 JK |
3416 | timeout--; |
3417 | } | |
3418 | ||
3419 | if (!timeout) { | |
3420 | DEBUGOUT("Driver can't access resource, SW_FW_SYNC timeout.\n"); | |
3421 | return -E1000_ERR_SWFW_SYNC; | |
3422 | } | |
3423 | ||
3424 | swfw_sync |= swmask; | |
3425 | E1000_WRITE_REG(hw, SW_FW_SYNC, swfw_sync); | |
3426 | ||
3427 | e1000_put_hw_eeprom_semaphore(hw); | |
3428 | return E1000_SUCCESS; | |
3429 | } | |
3430 | ||
e4c780b1 | 3431 | static void |
406874a7 | 3432 | e1000_swfw_sync_release(struct e1000_hw *hw, u16 mask) |
6418ecc6 | 3433 | { |
406874a7 JP |
3434 | u32 swfw_sync; |
3435 | u32 swmask = mask; | |
6418ecc6 JK |
3436 | |
3437 | DEBUGFUNC("e1000_swfw_sync_release"); | |
3438 | ||
cd94dd0b AK |
3439 | if (hw->swfwhw_semaphore_present) { |
3440 | e1000_release_software_flag(hw); | |
3441 | return; | |
3442 | } | |
3443 | ||
6418ecc6 JK |
3444 | if (!hw->swfw_sync_present) { |
3445 | e1000_put_hw_eeprom_semaphore(hw); | |
3446 | return; | |
3447 | } | |
3448 | ||
3449 | /* if (e1000_get_hw_eeprom_semaphore(hw)) | |
3450 | * return -E1000_ERR_SWFW_SYNC; */ | |
3451 | while (e1000_get_hw_eeprom_semaphore(hw) != E1000_SUCCESS); | |
3452 | /* empty */ | |
3453 | ||
3454 | swfw_sync = E1000_READ_REG(hw, SW_FW_SYNC); | |
3455 | swfw_sync &= ~swmask; | |
3456 | E1000_WRITE_REG(hw, SW_FW_SYNC, swfw_sync); | |
3457 | ||
3458 | e1000_put_hw_eeprom_semaphore(hw); | |
3459 | } | |
3460 | ||
1da177e4 LT |
3461 | /***************************************************************************** |
3462 | * Reads the value from a PHY register, if the value is on a specific non zero | |
3463 | * page, sets the page first. | |
3464 | * hw - Struct containing variables accessed by shared code | |
3465 | * reg_addr - address of the PHY register to read | |
3466 | ******************************************************************************/ | |
406874a7 | 3467 | s32 |
1da177e4 | 3468 | e1000_read_phy_reg(struct e1000_hw *hw, |
406874a7 JP |
3469 | u32 reg_addr, |
3470 | u16 *phy_data) | |
1da177e4 | 3471 | { |
406874a7 JP |
3472 | u32 ret_val; |
3473 | u16 swfw; | |
1da177e4 LT |
3474 | |
3475 | DEBUGFUNC("e1000_read_phy_reg"); | |
3476 | ||
6418ecc6 JK |
3477 | if ((hw->mac_type == e1000_80003es2lan) && |
3478 | (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1)) { | |
3479 | swfw = E1000_SWFW_PHY1_SM; | |
3480 | } else { | |
3481 | swfw = E1000_SWFW_PHY0_SM; | |
3482 | } | |
3483 | if (e1000_swfw_sync_acquire(hw, swfw)) | |
3484 | return -E1000_ERR_SWFW_SYNC; | |
3485 | ||
cd94dd0b AK |
3486 | if ((hw->phy_type == e1000_phy_igp || |
3487 | hw->phy_type == e1000_phy_igp_3 || | |
2d7edb92 | 3488 | hw->phy_type == e1000_phy_igp_2) && |
1da177e4 LT |
3489 | (reg_addr > MAX_PHY_MULTI_PAGE_REG)) { |
3490 | ret_val = e1000_write_phy_reg_ex(hw, IGP01E1000_PHY_PAGE_SELECT, | |
406874a7 | 3491 | (u16)reg_addr); |
8fc897b0 | 3492 | if (ret_val) { |
6418ecc6 | 3493 | e1000_swfw_sync_release(hw, swfw); |
1da177e4 LT |
3494 | return ret_val; |
3495 | } | |
6418ecc6 JK |
3496 | } else if (hw->phy_type == e1000_phy_gg82563) { |
3497 | if (((reg_addr & MAX_PHY_REG_ADDRESS) > MAX_PHY_MULTI_PAGE_REG) || | |
3498 | (hw->mac_type == e1000_80003es2lan)) { | |
3499 | /* Select Configuration Page */ | |
3500 | if ((reg_addr & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) { | |
3501 | ret_val = e1000_write_phy_reg_ex(hw, GG82563_PHY_PAGE_SELECT, | |
406874a7 | 3502 | (u16)((u16)reg_addr >> GG82563_PAGE_SHIFT)); |
6418ecc6 JK |
3503 | } else { |
3504 | /* Use Alternative Page Select register to access | |
3505 | * registers 30 and 31 | |
3506 | */ | |
3507 | ret_val = e1000_write_phy_reg_ex(hw, | |
3508 | GG82563_PHY_PAGE_SELECT_ALT, | |
406874a7 | 3509 | (u16)((u16)reg_addr >> GG82563_PAGE_SHIFT)); |
6418ecc6 JK |
3510 | } |
3511 | ||
3512 | if (ret_val) { | |
3513 | e1000_swfw_sync_release(hw, swfw); | |
3514 | return ret_val; | |
3515 | } | |
3516 | } | |
1da177e4 LT |
3517 | } |
3518 | ||
3519 | ret_val = e1000_read_phy_reg_ex(hw, MAX_PHY_REG_ADDRESS & reg_addr, | |
3520 | phy_data); | |
3521 | ||
6418ecc6 | 3522 | e1000_swfw_sync_release(hw, swfw); |
1da177e4 LT |
3523 | return ret_val; |
3524 | } | |
3525 | ||
406874a7 JP |
3526 | static s32 |
3527 | e1000_read_phy_reg_ex(struct e1000_hw *hw, u32 reg_addr, | |
3528 | u16 *phy_data) | |
1da177e4 | 3529 | { |
406874a7 JP |
3530 | u32 i; |
3531 | u32 mdic = 0; | |
3532 | const u32 phy_addr = 1; | |
1da177e4 LT |
3533 | |
3534 | DEBUGFUNC("e1000_read_phy_reg_ex"); | |
3535 | ||
8fc897b0 | 3536 | if (reg_addr > MAX_PHY_REG_ADDRESS) { |
1da177e4 LT |
3537 | DEBUGOUT1("PHY Address %d is out of range\n", reg_addr); |
3538 | return -E1000_ERR_PARAM; | |
3539 | } | |
3540 | ||
8fc897b0 | 3541 | if (hw->mac_type > e1000_82543) { |
1da177e4 LT |
3542 | /* Set up Op-code, Phy Address, and register address in the MDI |
3543 | * Control register. The MAC will take care of interfacing with the | |
3544 | * PHY to retrieve the desired data. | |
3545 | */ | |
3546 | mdic = ((reg_addr << E1000_MDIC_REG_SHIFT) | | |
3547 | (phy_addr << E1000_MDIC_PHY_SHIFT) | | |
3548 | (E1000_MDIC_OP_READ)); | |
3549 | ||
3550 | E1000_WRITE_REG(hw, MDIC, mdic); | |
3551 | ||
3552 | /* Poll the ready bit to see if the MDI read completed */ | |
8fc897b0 | 3553 | for (i = 0; i < 64; i++) { |
1da177e4 LT |
3554 | udelay(50); |
3555 | mdic = E1000_READ_REG(hw, MDIC); | |
8fc897b0 | 3556 | if (mdic & E1000_MDIC_READY) break; |
1da177e4 | 3557 | } |
8fc897b0 | 3558 | if (!(mdic & E1000_MDIC_READY)) { |
1da177e4 LT |
3559 | DEBUGOUT("MDI Read did not complete\n"); |
3560 | return -E1000_ERR_PHY; | |
3561 | } | |
8fc897b0 | 3562 | if (mdic & E1000_MDIC_ERROR) { |
1da177e4 LT |
3563 | DEBUGOUT("MDI Error\n"); |
3564 | return -E1000_ERR_PHY; | |
3565 | } | |
406874a7 | 3566 | *phy_data = (u16) mdic; |
1da177e4 LT |
3567 | } else { |
3568 | /* We must first send a preamble through the MDIO pin to signal the | |
3569 | * beginning of an MII instruction. This is done by sending 32 | |
3570 | * consecutive "1" bits. | |
3571 | */ | |
3572 | e1000_shift_out_mdi_bits(hw, PHY_PREAMBLE, PHY_PREAMBLE_SIZE); | |
3573 | ||
3574 | /* Now combine the next few fields that are required for a read | |
3575 | * operation. We use this method instead of calling the | |
3576 | * e1000_shift_out_mdi_bits routine five different times. The format of | |
3577 | * a MII read instruction consists of a shift out of 14 bits and is | |
3578 | * defined as follows: | |
3579 | * <Preamble><SOF><Op Code><Phy Addr><Reg Addr> | |
3580 | * followed by a shift in of 18 bits. This first two bits shifted in | |
3581 | * are TurnAround bits used to avoid contention on the MDIO pin when a | |
3582 | * READ operation is performed. These two bits are thrown away | |
3583 | * followed by a shift in of 16 bits which contains the desired data. | |
3584 | */ | |
3585 | mdic = ((reg_addr) | (phy_addr << 5) | | |
3586 | (PHY_OP_READ << 10) | (PHY_SOF << 12)); | |
3587 | ||
3588 | e1000_shift_out_mdi_bits(hw, mdic, 14); | |
3589 | ||
3590 | /* Now that we've shifted out the read command to the MII, we need to | |
3591 | * "shift in" the 16-bit value (18 total bits) of the requested PHY | |
3592 | * register address. | |
3593 | */ | |
3594 | *phy_data = e1000_shift_in_mdi_bits(hw); | |
3595 | } | |
3596 | return E1000_SUCCESS; | |
3597 | } | |
3598 | ||
3599 | /****************************************************************************** | |
3600 | * Writes a value to a PHY register | |
3601 | * | |
3602 | * hw - Struct containing variables accessed by shared code | |
3603 | * reg_addr - address of the PHY register to write | |
3604 | * data - data to write to the PHY | |
3605 | ******************************************************************************/ | |
406874a7 JP |
3606 | s32 |
3607 | e1000_write_phy_reg(struct e1000_hw *hw, u32 reg_addr, | |
3608 | u16 phy_data) | |
1da177e4 | 3609 | { |
406874a7 JP |
3610 | u32 ret_val; |
3611 | u16 swfw; | |
1da177e4 LT |
3612 | |
3613 | DEBUGFUNC("e1000_write_phy_reg"); | |
3614 | ||
6418ecc6 JK |
3615 | if ((hw->mac_type == e1000_80003es2lan) && |
3616 | (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1)) { | |
3617 | swfw = E1000_SWFW_PHY1_SM; | |
3618 | } else { | |
3619 | swfw = E1000_SWFW_PHY0_SM; | |
3620 | } | |
3621 | if (e1000_swfw_sync_acquire(hw, swfw)) | |
3622 | return -E1000_ERR_SWFW_SYNC; | |
3623 | ||
cd94dd0b AK |
3624 | if ((hw->phy_type == e1000_phy_igp || |
3625 | hw->phy_type == e1000_phy_igp_3 || | |
2d7edb92 | 3626 | hw->phy_type == e1000_phy_igp_2) && |
1da177e4 LT |
3627 | (reg_addr > MAX_PHY_MULTI_PAGE_REG)) { |
3628 | ret_val = e1000_write_phy_reg_ex(hw, IGP01E1000_PHY_PAGE_SELECT, | |
406874a7 | 3629 | (u16)reg_addr); |
8fc897b0 | 3630 | if (ret_val) { |
6418ecc6 | 3631 | e1000_swfw_sync_release(hw, swfw); |
1da177e4 LT |
3632 | return ret_val; |
3633 | } | |
6418ecc6 JK |
3634 | } else if (hw->phy_type == e1000_phy_gg82563) { |
3635 | if (((reg_addr & MAX_PHY_REG_ADDRESS) > MAX_PHY_MULTI_PAGE_REG) || | |
3636 | (hw->mac_type == e1000_80003es2lan)) { | |
3637 | /* Select Configuration Page */ | |
3638 | if ((reg_addr & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) { | |
3639 | ret_val = e1000_write_phy_reg_ex(hw, GG82563_PHY_PAGE_SELECT, | |
406874a7 | 3640 | (u16)((u16)reg_addr >> GG82563_PAGE_SHIFT)); |
6418ecc6 JK |
3641 | } else { |
3642 | /* Use Alternative Page Select register to access | |
3643 | * registers 30 and 31 | |
3644 | */ | |
3645 | ret_val = e1000_write_phy_reg_ex(hw, | |
3646 | GG82563_PHY_PAGE_SELECT_ALT, | |
406874a7 | 3647 | (u16)((u16)reg_addr >> GG82563_PAGE_SHIFT)); |
6418ecc6 JK |
3648 | } |
3649 | ||
3650 | if (ret_val) { | |
3651 | e1000_swfw_sync_release(hw, swfw); | |
3652 | return ret_val; | |
3653 | } | |
3654 | } | |
1da177e4 LT |
3655 | } |
3656 | ||
3657 | ret_val = e1000_write_phy_reg_ex(hw, MAX_PHY_REG_ADDRESS & reg_addr, | |
3658 | phy_data); | |
3659 | ||
6418ecc6 | 3660 | e1000_swfw_sync_release(hw, swfw); |
1da177e4 LT |
3661 | return ret_val; |
3662 | } | |
3663 | ||
406874a7 JP |
3664 | static s32 |
3665 | e1000_write_phy_reg_ex(struct e1000_hw *hw, u32 reg_addr, | |
3666 | u16 phy_data) | |
1da177e4 | 3667 | { |
406874a7 JP |
3668 | u32 i; |
3669 | u32 mdic = 0; | |
3670 | const u32 phy_addr = 1; | |
1da177e4 LT |
3671 | |
3672 | DEBUGFUNC("e1000_write_phy_reg_ex"); | |
3673 | ||
8fc897b0 | 3674 | if (reg_addr > MAX_PHY_REG_ADDRESS) { |
1da177e4 LT |
3675 | DEBUGOUT1("PHY Address %d is out of range\n", reg_addr); |
3676 | return -E1000_ERR_PARAM; | |
3677 | } | |
3678 | ||
8fc897b0 | 3679 | if (hw->mac_type > e1000_82543) { |
1da177e4 LT |
3680 | /* Set up Op-code, Phy Address, register address, and data intended |
3681 | * for the PHY register in the MDI Control register. The MAC will take | |
3682 | * care of interfacing with the PHY to send the desired data. | |
3683 | */ | |
406874a7 | 3684 | mdic = (((u32) phy_data) | |
1da177e4 LT |
3685 | (reg_addr << E1000_MDIC_REG_SHIFT) | |
3686 | (phy_addr << E1000_MDIC_PHY_SHIFT) | | |
3687 | (E1000_MDIC_OP_WRITE)); | |
3688 | ||
3689 | E1000_WRITE_REG(hw, MDIC, mdic); | |
3690 | ||
3691 | /* Poll the ready bit to see if the MDI read completed */ | |
8fc897b0 | 3692 | for (i = 0; i < 641; i++) { |
1da177e4 LT |
3693 | udelay(5); |
3694 | mdic = E1000_READ_REG(hw, MDIC); | |
8fc897b0 | 3695 | if (mdic & E1000_MDIC_READY) break; |
1da177e4 | 3696 | } |
8fc897b0 | 3697 | if (!(mdic & E1000_MDIC_READY)) { |
1da177e4 LT |
3698 | DEBUGOUT("MDI Write did not complete\n"); |
3699 | return -E1000_ERR_PHY; | |
3700 | } | |
3701 | } else { | |
3702 | /* We'll need to use the SW defined pins to shift the write command | |
3703 | * out to the PHY. We first send a preamble to the PHY to signal the | |
3704 | * beginning of the MII instruction. This is done by sending 32 | |
3705 | * consecutive "1" bits. | |
3706 | */ | |
3707 | e1000_shift_out_mdi_bits(hw, PHY_PREAMBLE, PHY_PREAMBLE_SIZE); | |
3708 | ||
3709 | /* Now combine the remaining required fields that will indicate a | |
3710 | * write operation. We use this method instead of calling the | |
3711 | * e1000_shift_out_mdi_bits routine for each field in the command. The | |
3712 | * format of a MII write instruction is as follows: | |
3713 | * <Preamble><SOF><Op Code><Phy Addr><Reg Addr><Turnaround><Data>. | |
3714 | */ | |
3715 | mdic = ((PHY_TURNAROUND) | (reg_addr << 2) | (phy_addr << 7) | | |
3716 | (PHY_OP_WRITE << 12) | (PHY_SOF << 14)); | |
3717 | mdic <<= 16; | |
406874a7 | 3718 | mdic |= (u32) phy_data; |
1da177e4 LT |
3719 | |
3720 | e1000_shift_out_mdi_bits(hw, mdic, 32); | |
3721 | } | |
3722 | ||
3723 | return E1000_SUCCESS; | |
3724 | } | |
3725 | ||
406874a7 | 3726 | static s32 |
6418ecc6 | 3727 | e1000_read_kmrn_reg(struct e1000_hw *hw, |
406874a7 JP |
3728 | u32 reg_addr, |
3729 | u16 *data) | |
6418ecc6 | 3730 | { |
406874a7 JP |
3731 | u32 reg_val; |
3732 | u16 swfw; | |
6418ecc6 JK |
3733 | DEBUGFUNC("e1000_read_kmrn_reg"); |
3734 | ||
3735 | if ((hw->mac_type == e1000_80003es2lan) && | |
3736 | (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1)) { | |
3737 | swfw = E1000_SWFW_PHY1_SM; | |
3738 | } else { | |
3739 | swfw = E1000_SWFW_PHY0_SM; | |
3740 | } | |
3741 | if (e1000_swfw_sync_acquire(hw, swfw)) | |
3742 | return -E1000_ERR_SWFW_SYNC; | |
3743 | ||
3744 | /* Write register address */ | |
3745 | reg_val = ((reg_addr << E1000_KUMCTRLSTA_OFFSET_SHIFT) & | |
3746 | E1000_KUMCTRLSTA_OFFSET) | | |
3747 | E1000_KUMCTRLSTA_REN; | |
3748 | E1000_WRITE_REG(hw, KUMCTRLSTA, reg_val); | |
3749 | udelay(2); | |
3750 | ||
3751 | /* Read the data returned */ | |
3752 | reg_val = E1000_READ_REG(hw, KUMCTRLSTA); | |
406874a7 | 3753 | *data = (u16)reg_val; |
6418ecc6 JK |
3754 | |
3755 | e1000_swfw_sync_release(hw, swfw); | |
3756 | return E1000_SUCCESS; | |
3757 | } | |
3758 | ||
406874a7 | 3759 | static s32 |
6418ecc6 | 3760 | e1000_write_kmrn_reg(struct e1000_hw *hw, |
406874a7 JP |
3761 | u32 reg_addr, |
3762 | u16 data) | |
6418ecc6 | 3763 | { |
406874a7 JP |
3764 | u32 reg_val; |
3765 | u16 swfw; | |
6418ecc6 JK |
3766 | DEBUGFUNC("e1000_write_kmrn_reg"); |
3767 | ||
3768 | if ((hw->mac_type == e1000_80003es2lan) && | |
3769 | (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1)) { | |
3770 | swfw = E1000_SWFW_PHY1_SM; | |
3771 | } else { | |
3772 | swfw = E1000_SWFW_PHY0_SM; | |
3773 | } | |
3774 | if (e1000_swfw_sync_acquire(hw, swfw)) | |
3775 | return -E1000_ERR_SWFW_SYNC; | |
3776 | ||
3777 | reg_val = ((reg_addr << E1000_KUMCTRLSTA_OFFSET_SHIFT) & | |
3778 | E1000_KUMCTRLSTA_OFFSET) | data; | |
3779 | E1000_WRITE_REG(hw, KUMCTRLSTA, reg_val); | |
3780 | udelay(2); | |
3781 | ||
3782 | e1000_swfw_sync_release(hw, swfw); | |
3783 | return E1000_SUCCESS; | |
3784 | } | |
2d7edb92 | 3785 | |
1da177e4 LT |
3786 | /****************************************************************************** |
3787 | * Returns the PHY to the power-on reset state | |
3788 | * | |
3789 | * hw - Struct containing variables accessed by shared code | |
3790 | ******************************************************************************/ | |
406874a7 | 3791 | s32 |
1da177e4 LT |
3792 | e1000_phy_hw_reset(struct e1000_hw *hw) |
3793 | { | |
406874a7 JP |
3794 | u32 ctrl, ctrl_ext; |
3795 | u32 led_ctrl; | |
3796 | s32 ret_val; | |
3797 | u16 swfw; | |
1da177e4 LT |
3798 | |
3799 | DEBUGFUNC("e1000_phy_hw_reset"); | |
3800 | ||
2d7edb92 MC |
3801 | /* In the case of the phy reset being blocked, it's not an error, we |
3802 | * simply return success without performing the reset. */ | |
3803 | ret_val = e1000_check_phy_reset_block(hw); | |
3804 | if (ret_val) | |
3805 | return E1000_SUCCESS; | |
3806 | ||
1da177e4 LT |
3807 | DEBUGOUT("Resetting Phy...\n"); |
3808 | ||
8fc897b0 | 3809 | if (hw->mac_type > e1000_82543) { |
6418ecc6 JK |
3810 | if ((hw->mac_type == e1000_80003es2lan) && |
3811 | (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1)) { | |
3812 | swfw = E1000_SWFW_PHY1_SM; | |
3813 | } else { | |
3814 | swfw = E1000_SWFW_PHY0_SM; | |
3815 | } | |
3816 | if (e1000_swfw_sync_acquire(hw, swfw)) { | |
2a88c173 | 3817 | DEBUGOUT("Unable to acquire swfw sync\n"); |
6418ecc6 JK |
3818 | return -E1000_ERR_SWFW_SYNC; |
3819 | } | |
1da177e4 LT |
3820 | /* Read the device control register and assert the E1000_CTRL_PHY_RST |
3821 | * bit. Then, take it out of reset. | |
76c224bc | 3822 | * For pre-e1000_82571 hardware, we delay for 10ms between the assert |
fd803241 | 3823 | * and deassert. For e1000_82571 hardware and later, we instead delay |
0f15a8fa | 3824 | * for 50us between and 10ms after the deassertion. |
1da177e4 LT |
3825 | */ |
3826 | ctrl = E1000_READ_REG(hw, CTRL); | |
3827 | E1000_WRITE_REG(hw, CTRL, ctrl | E1000_CTRL_PHY_RST); | |
3828 | E1000_WRITE_FLUSH(hw); | |
76c224bc AK |
3829 | |
3830 | if (hw->mac_type < e1000_82571) | |
f8ec4733 | 3831 | msleep(10); |
b55ccb35 JK |
3832 | else |
3833 | udelay(100); | |
76c224bc | 3834 | |
1da177e4 LT |
3835 | E1000_WRITE_REG(hw, CTRL, ctrl); |
3836 | E1000_WRITE_FLUSH(hw); | |
76c224bc | 3837 | |
fd803241 | 3838 | if (hw->mac_type >= e1000_82571) |
f8ec4733 | 3839 | mdelay(10); |
35574764 | 3840 | |
6418ecc6 | 3841 | e1000_swfw_sync_release(hw, swfw); |
1da177e4 LT |
3842 | } else { |
3843 | /* Read the Extended Device Control Register, assert the PHY_RESET_DIR | |
3844 | * bit to put the PHY into reset. Then, take it out of reset. | |
3845 | */ | |
3846 | ctrl_ext = E1000_READ_REG(hw, CTRL_EXT); | |
3847 | ctrl_ext |= E1000_CTRL_EXT_SDP4_DIR; | |
3848 | ctrl_ext &= ~E1000_CTRL_EXT_SDP4_DATA; | |
3849 | E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext); | |
3850 | E1000_WRITE_FLUSH(hw); | |
f8ec4733 | 3851 | msleep(10); |
1da177e4 LT |
3852 | ctrl_ext |= E1000_CTRL_EXT_SDP4_DATA; |
3853 | E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext); | |
3854 | E1000_WRITE_FLUSH(hw); | |
3855 | } | |
3856 | udelay(150); | |
3857 | ||
8fc897b0 | 3858 | if ((hw->mac_type == e1000_82541) || (hw->mac_type == e1000_82547)) { |
1da177e4 LT |
3859 | /* Configure activity LED after PHY reset */ |
3860 | led_ctrl = E1000_READ_REG(hw, LEDCTL); | |
3861 | led_ctrl &= IGP_ACTIVITY_LED_MASK; | |
3862 | led_ctrl |= (IGP_ACTIVITY_LED_ENABLE | IGP_LED3_MODE); | |
3863 | E1000_WRITE_REG(hw, LEDCTL, led_ctrl); | |
3864 | } | |
2d7edb92 MC |
3865 | |
3866 | /* Wait for FW to finish PHY configuration. */ | |
3867 | ret_val = e1000_get_phy_cfg_done(hw); | |
8fc897b0 AK |
3868 | if (ret_val != E1000_SUCCESS) |
3869 | return ret_val; | |
6418ecc6 | 3870 | e1000_release_software_semaphore(hw); |
2d7edb92 | 3871 | |
8fc897b0 AK |
3872 | if ((hw->mac_type == e1000_ich8lan) && (hw->phy_type == e1000_phy_igp_3)) |
3873 | ret_val = e1000_init_lcd_from_nvm(hw); | |
3874 | ||
2d7edb92 | 3875 | return ret_val; |
1da177e4 LT |
3876 | } |
3877 | ||
3878 | /****************************************************************************** | |
3879 | * Resets the PHY | |
3880 | * | |
3881 | * hw - Struct containing variables accessed by shared code | |
3882 | * | |
0779bf2d | 3883 | * Sets bit 15 of the MII Control register |
1da177e4 | 3884 | ******************************************************************************/ |
406874a7 | 3885 | s32 |
1da177e4 LT |
3886 | e1000_phy_reset(struct e1000_hw *hw) |
3887 | { | |
406874a7 JP |
3888 | s32 ret_val; |
3889 | u16 phy_data; | |
1da177e4 LT |
3890 | |
3891 | DEBUGFUNC("e1000_phy_reset"); | |
3892 | ||
2d7edb92 MC |
3893 | /* In the case of the phy reset being blocked, it's not an error, we |
3894 | * simply return success without performing the reset. */ | |
3895 | ret_val = e1000_check_phy_reset_block(hw); | |
3896 | if (ret_val) | |
3897 | return E1000_SUCCESS; | |
3898 | ||
2a88c173 JK |
3899 | switch (hw->phy_type) { |
3900 | case e1000_phy_igp: | |
3901 | case e1000_phy_igp_2: | |
3902 | case e1000_phy_igp_3: | |
3903 | case e1000_phy_ife: | |
2d7edb92 | 3904 | ret_val = e1000_phy_hw_reset(hw); |
8fc897b0 | 3905 | if (ret_val) |
2d7edb92 MC |
3906 | return ret_val; |
3907 | break; | |
3908 | default: | |
1da177e4 | 3909 | ret_val = e1000_read_phy_reg(hw, PHY_CTRL, &phy_data); |
8fc897b0 | 3910 | if (ret_val) |
1da177e4 LT |
3911 | return ret_val; |
3912 | ||
3913 | phy_data |= MII_CR_RESET; | |
3914 | ret_val = e1000_write_phy_reg(hw, PHY_CTRL, phy_data); | |
8fc897b0 | 3915 | if (ret_val) |
1da177e4 LT |
3916 | return ret_val; |
3917 | ||
3918 | udelay(1); | |
2d7edb92 MC |
3919 | break; |
3920 | } | |
1da177e4 | 3921 | |
8fc897b0 | 3922 | if (hw->phy_type == e1000_phy_igp || hw->phy_type == e1000_phy_igp_2) |
1da177e4 LT |
3923 | e1000_phy_init_script(hw); |
3924 | ||
3925 | return E1000_SUCCESS; | |
3926 | } | |
3927 | ||
d37ea5d5 AK |
3928 | /****************************************************************************** |
3929 | * Work-around for 82566 power-down: on D3 entry- | |
3930 | * 1) disable gigabit link | |
3931 | * 2) write VR power-down enable | |
3932 | * 3) read it back | |
3933 | * if successful continue, else issue LCD reset and repeat | |
3934 | * | |
3935 | * hw - struct containing variables accessed by shared code | |
3936 | ******************************************************************************/ | |
3937 | void | |
3938 | e1000_phy_powerdown_workaround(struct e1000_hw *hw) | |
3939 | { | |
406874a7 JP |
3940 | s32 reg; |
3941 | u16 phy_data; | |
3942 | s32 retry = 0; | |
d37ea5d5 AK |
3943 | |
3944 | DEBUGFUNC("e1000_phy_powerdown_workaround"); | |
3945 | ||
3946 | if (hw->phy_type != e1000_phy_igp_3) | |
3947 | return; | |
3948 | ||
3949 | do { | |
3950 | /* Disable link */ | |
3951 | reg = E1000_READ_REG(hw, PHY_CTRL); | |
3952 | E1000_WRITE_REG(hw, PHY_CTRL, reg | E1000_PHY_CTRL_GBE_DISABLE | | |
3953 | E1000_PHY_CTRL_NOND0A_GBE_DISABLE); | |
3954 | ||
070f6ffb | 3955 | /* Write VR power-down enable - bits 9:8 should be 10b */ |
d37ea5d5 | 3956 | e1000_read_phy_reg(hw, IGP3_VR_CTRL, &phy_data); |
070f6ffb JK |
3957 | phy_data |= (1 << 9); |
3958 | phy_data &= ~(1 << 8); | |
3959 | e1000_write_phy_reg(hw, IGP3_VR_CTRL, phy_data); | |
d37ea5d5 AK |
3960 | |
3961 | /* Read it back and test */ | |
3962 | e1000_read_phy_reg(hw, IGP3_VR_CTRL, &phy_data); | |
070f6ffb | 3963 | if (((phy_data & IGP3_VR_CTRL_MODE_MASK) == IGP3_VR_CTRL_MODE_SHUT) || retry) |
d37ea5d5 AK |
3964 | break; |
3965 | ||
3966 | /* Issue PHY reset and repeat at most one more time */ | |
3967 | reg = E1000_READ_REG(hw, CTRL); | |
3968 | E1000_WRITE_REG(hw, CTRL, reg | E1000_CTRL_PHY_RST); | |
3969 | retry++; | |
3970 | } while (retry); | |
3971 | ||
3972 | return; | |
3973 | ||
3974 | } | |
3975 | ||
3976 | /****************************************************************************** | |
3977 | * Work-around for 82566 Kumeran PCS lock loss: | |
3978 | * On link status change (i.e. PCI reset, speed change) and link is up and | |
3979 | * speed is gigabit- | |
3980 | * 0) if workaround is optionally disabled do nothing | |
3981 | * 1) wait 1ms for Kumeran link to come up | |
3982 | * 2) check Kumeran Diagnostic register PCS lock loss bit | |
3983 | * 3) if not set the link is locked (all is good), otherwise... | |
3984 | * 4) reset the PHY | |
3985 | * 5) repeat up to 10 times | |
3986 | * Note: this is only called for IGP3 copper when speed is 1gb. | |
3987 | * | |
3988 | * hw - struct containing variables accessed by shared code | |
3989 | ******************************************************************************/ | |
406874a7 | 3990 | static s32 |
d37ea5d5 AK |
3991 | e1000_kumeran_lock_loss_workaround(struct e1000_hw *hw) |
3992 | { | |
406874a7 JP |
3993 | s32 ret_val; |
3994 | s32 reg; | |
3995 | s32 cnt; | |
3996 | u16 phy_data; | |
d37ea5d5 AK |
3997 | |
3998 | if (hw->kmrn_lock_loss_workaround_disabled) | |
3999 | return E1000_SUCCESS; | |
4000 | ||
8fc897b0 AK |
4001 | /* Make sure link is up before proceeding. If not just return. |
4002 | * Attempting this while link is negotiating fouled up link | |
d37ea5d5 AK |
4003 | * stability */ |
4004 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); | |
4005 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); | |
4006 | ||
4007 | if (phy_data & MII_SR_LINK_STATUS) { | |
4008 | for (cnt = 0; cnt < 10; cnt++) { | |
4009 | /* read once to clear */ | |
4010 | ret_val = e1000_read_phy_reg(hw, IGP3_KMRN_DIAG, &phy_data); | |
4011 | if (ret_val) | |
4012 | return ret_val; | |
4013 | /* and again to get new status */ | |
4014 | ret_val = e1000_read_phy_reg(hw, IGP3_KMRN_DIAG, &phy_data); | |
4015 | if (ret_val) | |
4016 | return ret_val; | |
4017 | ||
4018 | /* check for PCS lock */ | |
4019 | if (!(phy_data & IGP3_KMRN_DIAG_PCS_LOCK_LOSS)) | |
4020 | return E1000_SUCCESS; | |
4021 | ||
4022 | /* Issue PHY reset */ | |
4023 | e1000_phy_hw_reset(hw); | |
f8ec4733 | 4024 | mdelay(5); |
d37ea5d5 AK |
4025 | } |
4026 | /* Disable GigE link negotiation */ | |
4027 | reg = E1000_READ_REG(hw, PHY_CTRL); | |
4028 | E1000_WRITE_REG(hw, PHY_CTRL, reg | E1000_PHY_CTRL_GBE_DISABLE | | |
4029 | E1000_PHY_CTRL_NOND0A_GBE_DISABLE); | |
4030 | ||
4031 | /* unable to acquire PCS lock */ | |
4032 | return E1000_ERR_PHY; | |
4033 | } | |
4034 | ||
4035 | return E1000_SUCCESS; | |
4036 | } | |
4037 | ||
1da177e4 LT |
4038 | /****************************************************************************** |
4039 | * Probes the expected PHY address for known PHY IDs | |
4040 | * | |
4041 | * hw - Struct containing variables accessed by shared code | |
4042 | ******************************************************************************/ | |
406874a7 | 4043 | static s32 |
1da177e4 LT |
4044 | e1000_detect_gig_phy(struct e1000_hw *hw) |
4045 | { | |
406874a7 JP |
4046 | s32 phy_init_status, ret_val; |
4047 | u16 phy_id_high, phy_id_low; | |
c3033b01 | 4048 | bool match = false; |
1da177e4 LT |
4049 | |
4050 | DEBUGFUNC("e1000_detect_gig_phy"); | |
4051 | ||
2a88c173 JK |
4052 | if (hw->phy_id != 0) |
4053 | return E1000_SUCCESS; | |
4054 | ||
868d5309 MC |
4055 | /* The 82571 firmware may still be configuring the PHY. In this |
4056 | * case, we cannot access the PHY until the configuration is done. So | |
4057 | * we explicitly set the PHY values. */ | |
cd94dd0b AK |
4058 | if (hw->mac_type == e1000_82571 || |
4059 | hw->mac_type == e1000_82572) { | |
868d5309 MC |
4060 | hw->phy_id = IGP01E1000_I_PHY_ID; |
4061 | hw->phy_type = e1000_phy_igp_2; | |
4062 | return E1000_SUCCESS; | |
4063 | } | |
4064 | ||
6418ecc6 JK |
4065 | /* ESB-2 PHY reads require e1000_phy_gg82563 to be set because of a work- |
4066 | * around that forces PHY page 0 to be set or the reads fail. The rest of | |
4067 | * the code in this routine uses e1000_read_phy_reg to read the PHY ID. | |
4068 | * So for ESB-2 we need to have this set so our reads won't fail. If the | |
4069 | * attached PHY is not a e1000_phy_gg82563, the routines below will figure | |
4070 | * this out as well. */ | |
4071 | if (hw->mac_type == e1000_80003es2lan) | |
4072 | hw->phy_type = e1000_phy_gg82563; | |
4073 | ||
1da177e4 LT |
4074 | /* Read the PHY ID Registers to identify which PHY is onboard. */ |
4075 | ret_val = e1000_read_phy_reg(hw, PHY_ID1, &phy_id_high); | |
cd94dd0b | 4076 | if (ret_val) |
1da177e4 LT |
4077 | return ret_val; |
4078 | ||
406874a7 | 4079 | hw->phy_id = (u32) (phy_id_high << 16); |
1da177e4 LT |
4080 | udelay(20); |
4081 | ret_val = e1000_read_phy_reg(hw, PHY_ID2, &phy_id_low); | |
8fc897b0 | 4082 | if (ret_val) |
1da177e4 LT |
4083 | return ret_val; |
4084 | ||
406874a7 JP |
4085 | hw->phy_id |= (u32) (phy_id_low & PHY_REVISION_MASK); |
4086 | hw->phy_revision = (u32) phy_id_low & ~PHY_REVISION_MASK; | |
1da177e4 | 4087 | |
8fc897b0 | 4088 | switch (hw->mac_type) { |
1da177e4 | 4089 | case e1000_82543: |
c3033b01 | 4090 | if (hw->phy_id == M88E1000_E_PHY_ID) match = true; |
1da177e4 LT |
4091 | break; |
4092 | case e1000_82544: | |
c3033b01 | 4093 | if (hw->phy_id == M88E1000_I_PHY_ID) match = true; |
1da177e4 LT |
4094 | break; |
4095 | case e1000_82540: | |
4096 | case e1000_82545: | |
4097 | case e1000_82545_rev_3: | |
4098 | case e1000_82546: | |
4099 | case e1000_82546_rev_3: | |
c3033b01 | 4100 | if (hw->phy_id == M88E1011_I_PHY_ID) match = true; |
1da177e4 LT |
4101 | break; |
4102 | case e1000_82541: | |
4103 | case e1000_82541_rev_2: | |
4104 | case e1000_82547: | |
4105 | case e1000_82547_rev_2: | |
c3033b01 | 4106 | if (hw->phy_id == IGP01E1000_I_PHY_ID) match = true; |
1da177e4 | 4107 | break; |
2d7edb92 | 4108 | case e1000_82573: |
c3033b01 | 4109 | if (hw->phy_id == M88E1111_I_PHY_ID) match = true; |
2d7edb92 | 4110 | break; |
6418ecc6 | 4111 | case e1000_80003es2lan: |
c3033b01 | 4112 | if (hw->phy_id == GG82563_E_PHY_ID) match = true; |
6418ecc6 | 4113 | break; |
cd94dd0b | 4114 | case e1000_ich8lan: |
c3033b01 JP |
4115 | if (hw->phy_id == IGP03E1000_E_PHY_ID) match = true; |
4116 | if (hw->phy_id == IFE_E_PHY_ID) match = true; | |
4117 | if (hw->phy_id == IFE_PLUS_E_PHY_ID) match = true; | |
4118 | if (hw->phy_id == IFE_C_E_PHY_ID) match = true; | |
cd94dd0b | 4119 | break; |
1da177e4 LT |
4120 | default: |
4121 | DEBUGOUT1("Invalid MAC type %d\n", hw->mac_type); | |
4122 | return -E1000_ERR_CONFIG; | |
4123 | } | |
4124 | phy_init_status = e1000_set_phy_type(hw); | |
4125 | ||
4126 | if ((match) && (phy_init_status == E1000_SUCCESS)) { | |
4127 | DEBUGOUT1("PHY ID 0x%X detected\n", hw->phy_id); | |
4128 | return E1000_SUCCESS; | |
4129 | } | |
4130 | DEBUGOUT1("Invalid PHY ID 0x%X\n", hw->phy_id); | |
4131 | return -E1000_ERR_PHY; | |
4132 | } | |
4133 | ||
4134 | /****************************************************************************** | |
4135 | * Resets the PHY's DSP | |
4136 | * | |
4137 | * hw - Struct containing variables accessed by shared code | |
4138 | ******************************************************************************/ | |
406874a7 | 4139 | static s32 |
1da177e4 LT |
4140 | e1000_phy_reset_dsp(struct e1000_hw *hw) |
4141 | { | |
406874a7 | 4142 | s32 ret_val; |
1da177e4 LT |
4143 | DEBUGFUNC("e1000_phy_reset_dsp"); |
4144 | ||
4145 | do { | |
6418ecc6 JK |
4146 | if (hw->phy_type != e1000_phy_gg82563) { |
4147 | ret_val = e1000_write_phy_reg(hw, 29, 0x001d); | |
8fc897b0 | 4148 | if (ret_val) break; |
6418ecc6 | 4149 | } |
1da177e4 | 4150 | ret_val = e1000_write_phy_reg(hw, 30, 0x00c1); |
8fc897b0 | 4151 | if (ret_val) break; |
1da177e4 | 4152 | ret_val = e1000_write_phy_reg(hw, 30, 0x0000); |
8fc897b0 | 4153 | if (ret_val) break; |
1da177e4 | 4154 | ret_val = E1000_SUCCESS; |
8fc897b0 | 4155 | } while (0); |
1da177e4 LT |
4156 | |
4157 | return ret_val; | |
4158 | } | |
4159 | ||
4160 | /****************************************************************************** | |
4161 | * Get PHY information from various PHY registers for igp PHY only. | |
4162 | * | |
4163 | * hw - Struct containing variables accessed by shared code | |
4164 | * phy_info - PHY information structure | |
4165 | ******************************************************************************/ | |
406874a7 | 4166 | static s32 |
1da177e4 LT |
4167 | e1000_phy_igp_get_info(struct e1000_hw *hw, |
4168 | struct e1000_phy_info *phy_info) | |
4169 | { | |
406874a7 JP |
4170 | s32 ret_val; |
4171 | u16 phy_data, min_length, max_length, average; | |
70c6f30a | 4172 | e1000_rev_polarity polarity; |
1da177e4 LT |
4173 | |
4174 | DEBUGFUNC("e1000_phy_igp_get_info"); | |
4175 | ||
4176 | /* The downshift status is checked only once, after link is established, | |
4177 | * and it stored in the hw->speed_downgraded parameter. */ | |
2d7edb92 | 4178 | phy_info->downshift = (e1000_downshift)hw->speed_downgraded; |
1da177e4 LT |
4179 | |
4180 | /* IGP01E1000 does not need to support it. */ | |
4181 | phy_info->extended_10bt_distance = e1000_10bt_ext_dist_enable_normal; | |
4182 | ||
4183 | /* IGP01E1000 always correct polarity reversal */ | |
4184 | phy_info->polarity_correction = e1000_polarity_reversal_enabled; | |
4185 | ||
4186 | /* Check polarity status */ | |
4187 | ret_val = e1000_check_polarity(hw, &polarity); | |
8fc897b0 | 4188 | if (ret_val) |
1da177e4 LT |
4189 | return ret_val; |
4190 | ||
4191 | phy_info->cable_polarity = polarity; | |
4192 | ||
4193 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS, &phy_data); | |
8fc897b0 | 4194 | if (ret_val) |
1da177e4 LT |
4195 | return ret_val; |
4196 | ||
70c6f30a JK |
4197 | phy_info->mdix_mode = (e1000_auto_x_mode)((phy_data & IGP01E1000_PSSR_MDIX) >> |
4198 | IGP01E1000_PSSR_MDIX_SHIFT); | |
1da177e4 | 4199 | |
8fc897b0 | 4200 | if ((phy_data & IGP01E1000_PSSR_SPEED_MASK) == |
1da177e4 LT |
4201 | IGP01E1000_PSSR_SPEED_1000MBPS) { |
4202 | /* Local/Remote Receiver Information are only valid at 1000 Mbps */ | |
4203 | ret_val = e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data); | |
8fc897b0 | 4204 | if (ret_val) |
1da177e4 LT |
4205 | return ret_val; |
4206 | ||
70c6f30a JK |
4207 | phy_info->local_rx = ((phy_data & SR_1000T_LOCAL_RX_STATUS) >> |
4208 | SR_1000T_LOCAL_RX_STATUS_SHIFT) ? | |
4209 | e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok; | |
4210 | phy_info->remote_rx = ((phy_data & SR_1000T_REMOTE_RX_STATUS) >> | |
4211 | SR_1000T_REMOTE_RX_STATUS_SHIFT) ? | |
4212 | e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok; | |
1da177e4 LT |
4213 | |
4214 | /* Get cable length */ | |
4215 | ret_val = e1000_get_cable_length(hw, &min_length, &max_length); | |
8fc897b0 | 4216 | if (ret_val) |
1da177e4 LT |
4217 | return ret_val; |
4218 | ||
2d7edb92 | 4219 | /* Translate to old method */ |
1da177e4 LT |
4220 | average = (max_length + min_length) / 2; |
4221 | ||
8fc897b0 | 4222 | if (average <= e1000_igp_cable_length_50) |
1da177e4 | 4223 | phy_info->cable_length = e1000_cable_length_50; |
8fc897b0 | 4224 | else if (average <= e1000_igp_cable_length_80) |
1da177e4 | 4225 | phy_info->cable_length = e1000_cable_length_50_80; |
8fc897b0 | 4226 | else if (average <= e1000_igp_cable_length_110) |
1da177e4 | 4227 | phy_info->cable_length = e1000_cable_length_80_110; |
8fc897b0 | 4228 | else if (average <= e1000_igp_cable_length_140) |
1da177e4 LT |
4229 | phy_info->cable_length = e1000_cable_length_110_140; |
4230 | else | |
4231 | phy_info->cable_length = e1000_cable_length_140; | |
4232 | } | |
4233 | ||
4234 | return E1000_SUCCESS; | |
4235 | } | |
4236 | ||
d37ea5d5 AK |
4237 | /****************************************************************************** |
4238 | * Get PHY information from various PHY registers for ife PHY only. | |
4239 | * | |
4240 | * hw - Struct containing variables accessed by shared code | |
4241 | * phy_info - PHY information structure | |
4242 | ******************************************************************************/ | |
406874a7 | 4243 | static s32 |
d37ea5d5 AK |
4244 | e1000_phy_ife_get_info(struct e1000_hw *hw, |
4245 | struct e1000_phy_info *phy_info) | |
4246 | { | |
406874a7 JP |
4247 | s32 ret_val; |
4248 | u16 phy_data; | |
70c6f30a | 4249 | e1000_rev_polarity polarity; |
d37ea5d5 AK |
4250 | |
4251 | DEBUGFUNC("e1000_phy_ife_get_info"); | |
4252 | ||
4253 | phy_info->downshift = (e1000_downshift)hw->speed_downgraded; | |
4254 | phy_info->extended_10bt_distance = e1000_10bt_ext_dist_enable_normal; | |
4255 | ||
4256 | ret_val = e1000_read_phy_reg(hw, IFE_PHY_SPECIAL_CONTROL, &phy_data); | |
4257 | if (ret_val) | |
4258 | return ret_val; | |
4259 | phy_info->polarity_correction = | |
70c6f30a JK |
4260 | ((phy_data & IFE_PSC_AUTO_POLARITY_DISABLE) >> |
4261 | IFE_PSC_AUTO_POLARITY_DISABLE_SHIFT) ? | |
4262 | e1000_polarity_reversal_disabled : e1000_polarity_reversal_enabled; | |
d37ea5d5 AK |
4263 | |
4264 | if (phy_info->polarity_correction == e1000_polarity_reversal_enabled) { | |
4265 | ret_val = e1000_check_polarity(hw, &polarity); | |
4266 | if (ret_val) | |
4267 | return ret_val; | |
4268 | } else { | |
4269 | /* Polarity is forced. */ | |
70c6f30a JK |
4270 | polarity = ((phy_data & IFE_PSC_FORCE_POLARITY) >> |
4271 | IFE_PSC_FORCE_POLARITY_SHIFT) ? | |
4272 | e1000_rev_polarity_reversed : e1000_rev_polarity_normal; | |
d37ea5d5 AK |
4273 | } |
4274 | phy_info->cable_polarity = polarity; | |
4275 | ||
4276 | ret_val = e1000_read_phy_reg(hw, IFE_PHY_MDIX_CONTROL, &phy_data); | |
4277 | if (ret_val) | |
4278 | return ret_val; | |
4279 | ||
70c6f30a JK |
4280 | phy_info->mdix_mode = (e1000_auto_x_mode) |
4281 | ((phy_data & (IFE_PMC_AUTO_MDIX | IFE_PMC_FORCE_MDIX)) >> | |
4282 | IFE_PMC_MDIX_MODE_SHIFT); | |
d37ea5d5 AK |
4283 | |
4284 | return E1000_SUCCESS; | |
4285 | } | |
4286 | ||
1da177e4 LT |
4287 | /****************************************************************************** |
4288 | * Get PHY information from various PHY registers fot m88 PHY only. | |
4289 | * | |
4290 | * hw - Struct containing variables accessed by shared code | |
4291 | * phy_info - PHY information structure | |
4292 | ******************************************************************************/ | |
406874a7 | 4293 | static s32 |
1da177e4 LT |
4294 | e1000_phy_m88_get_info(struct e1000_hw *hw, |
4295 | struct e1000_phy_info *phy_info) | |
4296 | { | |
406874a7 JP |
4297 | s32 ret_val; |
4298 | u16 phy_data; | |
70c6f30a | 4299 | e1000_rev_polarity polarity; |
1da177e4 LT |
4300 | |
4301 | DEBUGFUNC("e1000_phy_m88_get_info"); | |
4302 | ||
4303 | /* The downshift status is checked only once, after link is established, | |
4304 | * and it stored in the hw->speed_downgraded parameter. */ | |
2d7edb92 | 4305 | phy_info->downshift = (e1000_downshift)hw->speed_downgraded; |
1da177e4 LT |
4306 | |
4307 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); | |
8fc897b0 | 4308 | if (ret_val) |
1da177e4 LT |
4309 | return ret_val; |
4310 | ||
4311 | phy_info->extended_10bt_distance = | |
70c6f30a JK |
4312 | ((phy_data & M88E1000_PSCR_10BT_EXT_DIST_ENABLE) >> |
4313 | M88E1000_PSCR_10BT_EXT_DIST_ENABLE_SHIFT) ? | |
4314 | e1000_10bt_ext_dist_enable_lower : e1000_10bt_ext_dist_enable_normal; | |
4315 | ||
1da177e4 | 4316 | phy_info->polarity_correction = |
70c6f30a JK |
4317 | ((phy_data & M88E1000_PSCR_POLARITY_REVERSAL) >> |
4318 | M88E1000_PSCR_POLARITY_REVERSAL_SHIFT) ? | |
4319 | e1000_polarity_reversal_disabled : e1000_polarity_reversal_enabled; | |
1da177e4 LT |
4320 | |
4321 | /* Check polarity status */ | |
4322 | ret_val = e1000_check_polarity(hw, &polarity); | |
8fc897b0 | 4323 | if (ret_val) |
76c224bc | 4324 | return ret_val; |
1da177e4 LT |
4325 | phy_info->cable_polarity = polarity; |
4326 | ||
4327 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, &phy_data); | |
8fc897b0 | 4328 | if (ret_val) |
1da177e4 LT |
4329 | return ret_val; |
4330 | ||
70c6f30a JK |
4331 | phy_info->mdix_mode = (e1000_auto_x_mode)((phy_data & M88E1000_PSSR_MDIX) >> |
4332 | M88E1000_PSSR_MDIX_SHIFT); | |
1da177e4 LT |
4333 | |
4334 | if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_1000MBS) { | |
4335 | /* Cable Length Estimation and Local/Remote Receiver Information | |
4336 | * are only valid at 1000 Mbps. | |
4337 | */ | |
6418ecc6 | 4338 | if (hw->phy_type != e1000_phy_gg82563) { |
70c6f30a | 4339 | phy_info->cable_length = (e1000_cable_length)((phy_data & M88E1000_PSSR_CABLE_LENGTH) >> |
6418ecc6 JK |
4340 | M88E1000_PSSR_CABLE_LENGTH_SHIFT); |
4341 | } else { | |
4342 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_DSP_DISTANCE, | |
4343 | &phy_data); | |
4344 | if (ret_val) | |
4345 | return ret_val; | |
4346 | ||
70c6f30a | 4347 | phy_info->cable_length = (e1000_cable_length)(phy_data & GG82563_DSPD_CABLE_LENGTH); |
6418ecc6 | 4348 | } |
1da177e4 LT |
4349 | |
4350 | ret_val = e1000_read_phy_reg(hw, PHY_1000T_STATUS, &phy_data); | |
8fc897b0 | 4351 | if (ret_val) |
1da177e4 LT |
4352 | return ret_val; |
4353 | ||
70c6f30a JK |
4354 | phy_info->local_rx = ((phy_data & SR_1000T_LOCAL_RX_STATUS) >> |
4355 | SR_1000T_LOCAL_RX_STATUS_SHIFT) ? | |
4356 | e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok; | |
4357 | phy_info->remote_rx = ((phy_data & SR_1000T_REMOTE_RX_STATUS) >> | |
4358 | SR_1000T_REMOTE_RX_STATUS_SHIFT) ? | |
4359 | e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok; | |
1da177e4 | 4360 | |
1da177e4 LT |
4361 | } |
4362 | ||
4363 | return E1000_SUCCESS; | |
4364 | } | |
4365 | ||
4366 | /****************************************************************************** | |
4367 | * Get PHY information from various PHY registers | |
4368 | * | |
4369 | * hw - Struct containing variables accessed by shared code | |
4370 | * phy_info - PHY information structure | |
4371 | ******************************************************************************/ | |
406874a7 | 4372 | s32 |
1da177e4 LT |
4373 | e1000_phy_get_info(struct e1000_hw *hw, |
4374 | struct e1000_phy_info *phy_info) | |
4375 | { | |
406874a7 JP |
4376 | s32 ret_val; |
4377 | u16 phy_data; | |
1da177e4 LT |
4378 | |
4379 | DEBUGFUNC("e1000_phy_get_info"); | |
4380 | ||
4381 | phy_info->cable_length = e1000_cable_length_undefined; | |
4382 | phy_info->extended_10bt_distance = e1000_10bt_ext_dist_enable_undefined; | |
4383 | phy_info->cable_polarity = e1000_rev_polarity_undefined; | |
4384 | phy_info->downshift = e1000_downshift_undefined; | |
4385 | phy_info->polarity_correction = e1000_polarity_reversal_undefined; | |
4386 | phy_info->mdix_mode = e1000_auto_x_mode_undefined; | |
4387 | phy_info->local_rx = e1000_1000t_rx_status_undefined; | |
4388 | phy_info->remote_rx = e1000_1000t_rx_status_undefined; | |
4389 | ||
8fc897b0 | 4390 | if (hw->media_type != e1000_media_type_copper) { |
1da177e4 LT |
4391 | DEBUGOUT("PHY info is only valid for copper media\n"); |
4392 | return -E1000_ERR_CONFIG; | |
4393 | } | |
4394 | ||
4395 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); | |
8fc897b0 | 4396 | if (ret_val) |
1da177e4 LT |
4397 | return ret_val; |
4398 | ||
4399 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &phy_data); | |
8fc897b0 | 4400 | if (ret_val) |
1da177e4 LT |
4401 | return ret_val; |
4402 | ||
8fc897b0 | 4403 | if ((phy_data & MII_SR_LINK_STATUS) != MII_SR_LINK_STATUS) { |
1da177e4 LT |
4404 | DEBUGOUT("PHY info is only valid if link is up\n"); |
4405 | return -E1000_ERR_CONFIG; | |
4406 | } | |
4407 | ||
cd94dd0b AK |
4408 | if (hw->phy_type == e1000_phy_igp || |
4409 | hw->phy_type == e1000_phy_igp_3 || | |
2d7edb92 | 4410 | hw->phy_type == e1000_phy_igp_2) |
1da177e4 | 4411 | return e1000_phy_igp_get_info(hw, phy_info); |
cd94dd0b AK |
4412 | else if (hw->phy_type == e1000_phy_ife) |
4413 | return e1000_phy_ife_get_info(hw, phy_info); | |
1da177e4 LT |
4414 | else |
4415 | return e1000_phy_m88_get_info(hw, phy_info); | |
4416 | } | |
4417 | ||
406874a7 | 4418 | s32 |
1da177e4 LT |
4419 | e1000_validate_mdi_setting(struct e1000_hw *hw) |
4420 | { | |
4421 | DEBUGFUNC("e1000_validate_mdi_settings"); | |
4422 | ||
8fc897b0 | 4423 | if (!hw->autoneg && (hw->mdix == 0 || hw->mdix == 3)) { |
1da177e4 LT |
4424 | DEBUGOUT("Invalid MDI setting detected\n"); |
4425 | hw->mdix = 1; | |
4426 | return -E1000_ERR_CONFIG; | |
4427 | } | |
4428 | return E1000_SUCCESS; | |
4429 | } | |
4430 | ||
4431 | ||
4432 | /****************************************************************************** | |
4433 | * Sets up eeprom variables in the hw struct. Must be called after mac_type | |
0f15a8fa JK |
4434 | * is configured. Additionally, if this is ICH8, the flash controller GbE |
4435 | * registers must be mapped, or this will crash. | |
1da177e4 LT |
4436 | * |
4437 | * hw - Struct containing variables accessed by shared code | |
4438 | *****************************************************************************/ | |
406874a7 | 4439 | s32 |
1da177e4 LT |
4440 | e1000_init_eeprom_params(struct e1000_hw *hw) |
4441 | { | |
4442 | struct e1000_eeprom_info *eeprom = &hw->eeprom; | |
406874a7 JP |
4443 | u32 eecd = E1000_READ_REG(hw, EECD); |
4444 | s32 ret_val = E1000_SUCCESS; | |
4445 | u16 eeprom_size; | |
1da177e4 LT |
4446 | |
4447 | DEBUGFUNC("e1000_init_eeprom_params"); | |
4448 | ||
4449 | switch (hw->mac_type) { | |
4450 | case e1000_82542_rev2_0: | |
4451 | case e1000_82542_rev2_1: | |
4452 | case e1000_82543: | |
4453 | case e1000_82544: | |
4454 | eeprom->type = e1000_eeprom_microwire; | |
4455 | eeprom->word_size = 64; | |
4456 | eeprom->opcode_bits = 3; | |
4457 | eeprom->address_bits = 6; | |
4458 | eeprom->delay_usec = 50; | |
c3033b01 JP |
4459 | eeprom->use_eerd = false; |
4460 | eeprom->use_eewr = false; | |
1da177e4 LT |
4461 | break; |
4462 | case e1000_82540: | |
4463 | case e1000_82545: | |
4464 | case e1000_82545_rev_3: | |
4465 | case e1000_82546: | |
4466 | case e1000_82546_rev_3: | |
4467 | eeprom->type = e1000_eeprom_microwire; | |
4468 | eeprom->opcode_bits = 3; | |
4469 | eeprom->delay_usec = 50; | |
8fc897b0 | 4470 | if (eecd & E1000_EECD_SIZE) { |
1da177e4 LT |
4471 | eeprom->word_size = 256; |
4472 | eeprom->address_bits = 8; | |
4473 | } else { | |
4474 | eeprom->word_size = 64; | |
4475 | eeprom->address_bits = 6; | |
4476 | } | |
c3033b01 JP |
4477 | eeprom->use_eerd = false; |
4478 | eeprom->use_eewr = false; | |
1da177e4 LT |
4479 | break; |
4480 | case e1000_82541: | |
4481 | case e1000_82541_rev_2: | |
4482 | case e1000_82547: | |
4483 | case e1000_82547_rev_2: | |
4484 | if (eecd & E1000_EECD_TYPE) { | |
4485 | eeprom->type = e1000_eeprom_spi; | |
4486 | eeprom->opcode_bits = 8; | |
4487 | eeprom->delay_usec = 1; | |
4488 | if (eecd & E1000_EECD_ADDR_BITS) { | |
4489 | eeprom->page_size = 32; | |
4490 | eeprom->address_bits = 16; | |
4491 | } else { | |
4492 | eeprom->page_size = 8; | |
4493 | eeprom->address_bits = 8; | |
4494 | } | |
4495 | } else { | |
4496 | eeprom->type = e1000_eeprom_microwire; | |
4497 | eeprom->opcode_bits = 3; | |
4498 | eeprom->delay_usec = 50; | |
4499 | if (eecd & E1000_EECD_ADDR_BITS) { | |
4500 | eeprom->word_size = 256; | |
4501 | eeprom->address_bits = 8; | |
4502 | } else { | |
4503 | eeprom->word_size = 64; | |
4504 | eeprom->address_bits = 6; | |
4505 | } | |
4506 | } | |
c3033b01 JP |
4507 | eeprom->use_eerd = false; |
4508 | eeprom->use_eewr = false; | |
2d7edb92 | 4509 | break; |
868d5309 MC |
4510 | case e1000_82571: |
4511 | case e1000_82572: | |
4512 | eeprom->type = e1000_eeprom_spi; | |
4513 | eeprom->opcode_bits = 8; | |
4514 | eeprom->delay_usec = 1; | |
4515 | if (eecd & E1000_EECD_ADDR_BITS) { | |
4516 | eeprom->page_size = 32; | |
4517 | eeprom->address_bits = 16; | |
4518 | } else { | |
4519 | eeprom->page_size = 8; | |
4520 | eeprom->address_bits = 8; | |
4521 | } | |
c3033b01 JP |
4522 | eeprom->use_eerd = false; |
4523 | eeprom->use_eewr = false; | |
868d5309 | 4524 | break; |
2d7edb92 MC |
4525 | case e1000_82573: |
4526 | eeprom->type = e1000_eeprom_spi; | |
4527 | eeprom->opcode_bits = 8; | |
4528 | eeprom->delay_usec = 1; | |
4529 | if (eecd & E1000_EECD_ADDR_BITS) { | |
4530 | eeprom->page_size = 32; | |
4531 | eeprom->address_bits = 16; | |
4532 | } else { | |
4533 | eeprom->page_size = 8; | |
4534 | eeprom->address_bits = 8; | |
4535 | } | |
c3033b01 JP |
4536 | eeprom->use_eerd = true; |
4537 | eeprom->use_eewr = true; | |
4538 | if (!e1000_is_onboard_nvm_eeprom(hw)) { | |
2d7edb92 MC |
4539 | eeprom->type = e1000_eeprom_flash; |
4540 | eeprom->word_size = 2048; | |
4541 | ||
4542 | /* Ensure that the Autonomous FLASH update bit is cleared due to | |
4543 | * Flash update issue on parts which use a FLASH for NVM. */ | |
4544 | eecd &= ~E1000_EECD_AUPDEN; | |
4545 | E1000_WRITE_REG(hw, EECD, eecd); | |
4546 | } | |
1da177e4 | 4547 | break; |
6418ecc6 JK |
4548 | case e1000_80003es2lan: |
4549 | eeprom->type = e1000_eeprom_spi; | |
4550 | eeprom->opcode_bits = 8; | |
4551 | eeprom->delay_usec = 1; | |
4552 | if (eecd & E1000_EECD_ADDR_BITS) { | |
4553 | eeprom->page_size = 32; | |
4554 | eeprom->address_bits = 16; | |
4555 | } else { | |
4556 | eeprom->page_size = 8; | |
4557 | eeprom->address_bits = 8; | |
4558 | } | |
c3033b01 JP |
4559 | eeprom->use_eerd = true; |
4560 | eeprom->use_eewr = false; | |
6418ecc6 | 4561 | break; |
cd94dd0b | 4562 | case e1000_ich8lan: |
35574764 | 4563 | { |
406874a7 JP |
4564 | s32 i = 0; |
4565 | u32 flash_size = E1000_READ_ICH_FLASH_REG(hw, ICH_FLASH_GFPREG); | |
cd94dd0b AK |
4566 | |
4567 | eeprom->type = e1000_eeprom_ich8; | |
c3033b01 JP |
4568 | eeprom->use_eerd = false; |
4569 | eeprom->use_eewr = false; | |
cd94dd0b AK |
4570 | eeprom->word_size = E1000_SHADOW_RAM_WORDS; |
4571 | ||
4572 | /* Zero the shadow RAM structure. But don't load it from NVM | |
4573 | * so as to save time for driver init */ | |
4574 | if (hw->eeprom_shadow_ram != NULL) { | |
4575 | for (i = 0; i < E1000_SHADOW_RAM_WORDS; i++) { | |
c3033b01 | 4576 | hw->eeprom_shadow_ram[i].modified = false; |
cd94dd0b AK |
4577 | hw->eeprom_shadow_ram[i].eeprom_word = 0xFFFF; |
4578 | } | |
4579 | } | |
4580 | ||
2df7d59f JK |
4581 | hw->flash_base_addr = (flash_size & ICH_GFPREG_BASE_MASK) * |
4582 | ICH_FLASH_SECTOR_SIZE; | |
4583 | ||
4584 | hw->flash_bank_size = ((flash_size >> 16) & ICH_GFPREG_BASE_MASK) + 1; | |
4585 | hw->flash_bank_size -= (flash_size & ICH_GFPREG_BASE_MASK); | |
4586 | ||
4587 | hw->flash_bank_size *= ICH_FLASH_SECTOR_SIZE; | |
cd94dd0b | 4588 | |
406874a7 | 4589 | hw->flash_bank_size /= 2 * sizeof(u16); |
cd94dd0b AK |
4590 | |
4591 | break; | |
35574764 | 4592 | } |
1da177e4 LT |
4593 | default: |
4594 | break; | |
4595 | } | |
4596 | ||
4597 | if (eeprom->type == e1000_eeprom_spi) { | |
2d7edb92 MC |
4598 | /* eeprom_size will be an enum [0..8] that maps to eeprom sizes 128B to |
4599 | * 32KB (incremented by powers of 2). | |
4600 | */ | |
8fc897b0 | 4601 | if (hw->mac_type <= e1000_82547_rev_2) { |
2d7edb92 MC |
4602 | /* Set to default value for initial eeprom read. */ |
4603 | eeprom->word_size = 64; | |
4604 | ret_val = e1000_read_eeprom(hw, EEPROM_CFG, 1, &eeprom_size); | |
8fc897b0 | 4605 | if (ret_val) |
2d7edb92 MC |
4606 | return ret_val; |
4607 | eeprom_size = (eeprom_size & EEPROM_SIZE_MASK) >> EEPROM_SIZE_SHIFT; | |
4608 | /* 256B eeprom size was not supported in earlier hardware, so we | |
4609 | * bump eeprom_size up one to ensure that "1" (which maps to 256B) | |
4610 | * is never the result used in the shifting logic below. */ | |
8fc897b0 | 4611 | if (eeprom_size) |
2d7edb92 MC |
4612 | eeprom_size++; |
4613 | } else { | |
406874a7 | 4614 | eeprom_size = (u16)((eecd & E1000_EECD_SIZE_EX_MASK) >> |
2d7edb92 | 4615 | E1000_EECD_SIZE_EX_SHIFT); |
1da177e4 | 4616 | } |
2d7edb92 MC |
4617 | |
4618 | eeprom->word_size = 1 << (eeprom_size + EEPROM_WORD_SIZE_SHIFT); | |
1da177e4 | 4619 | } |
2d7edb92 | 4620 | return ret_val; |
1da177e4 LT |
4621 | } |
4622 | ||
4623 | /****************************************************************************** | |
4624 | * Raises the EEPROM's clock input. | |
4625 | * | |
4626 | * hw - Struct containing variables accessed by shared code | |
4627 | * eecd - EECD's current value | |
4628 | *****************************************************************************/ | |
4629 | static void | |
4630 | e1000_raise_ee_clk(struct e1000_hw *hw, | |
406874a7 | 4631 | u32 *eecd) |
1da177e4 LT |
4632 | { |
4633 | /* Raise the clock input to the EEPROM (by setting the SK bit), and then | |
4634 | * wait <delay> microseconds. | |
4635 | */ | |
4636 | *eecd = *eecd | E1000_EECD_SK; | |
4637 | E1000_WRITE_REG(hw, EECD, *eecd); | |
4638 | E1000_WRITE_FLUSH(hw); | |
4639 | udelay(hw->eeprom.delay_usec); | |
4640 | } | |
4641 | ||
4642 | /****************************************************************************** | |
4643 | * Lowers the EEPROM's clock input. | |
4644 | * | |
4645 | * hw - Struct containing variables accessed by shared code | |
4646 | * eecd - EECD's current value | |
4647 | *****************************************************************************/ | |
4648 | static void | |
4649 | e1000_lower_ee_clk(struct e1000_hw *hw, | |
406874a7 | 4650 | u32 *eecd) |
1da177e4 LT |
4651 | { |
4652 | /* Lower the clock input to the EEPROM (by clearing the SK bit), and then | |
4653 | * wait 50 microseconds. | |
4654 | */ | |
4655 | *eecd = *eecd & ~E1000_EECD_SK; | |
4656 | E1000_WRITE_REG(hw, EECD, *eecd); | |
4657 | E1000_WRITE_FLUSH(hw); | |
4658 | udelay(hw->eeprom.delay_usec); | |
4659 | } | |
4660 | ||
4661 | /****************************************************************************** | |
4662 | * Shift data bits out to the EEPROM. | |
4663 | * | |
4664 | * hw - Struct containing variables accessed by shared code | |
4665 | * data - data to send to the EEPROM | |
4666 | * count - number of bits to shift out | |
4667 | *****************************************************************************/ | |
4668 | static void | |
4669 | e1000_shift_out_ee_bits(struct e1000_hw *hw, | |
406874a7 JP |
4670 | u16 data, |
4671 | u16 count) | |
1da177e4 LT |
4672 | { |
4673 | struct e1000_eeprom_info *eeprom = &hw->eeprom; | |
406874a7 JP |
4674 | u32 eecd; |
4675 | u32 mask; | |
1da177e4 LT |
4676 | |
4677 | /* We need to shift "count" bits out to the EEPROM. So, value in the | |
4678 | * "data" parameter will be shifted out to the EEPROM one bit at a time. | |
4679 | * In order to do this, "data" must be broken down into bits. | |
4680 | */ | |
4681 | mask = 0x01 << (count - 1); | |
4682 | eecd = E1000_READ_REG(hw, EECD); | |
4683 | if (eeprom->type == e1000_eeprom_microwire) { | |
4684 | eecd &= ~E1000_EECD_DO; | |
4685 | } else if (eeprom->type == e1000_eeprom_spi) { | |
4686 | eecd |= E1000_EECD_DO; | |
4687 | } | |
4688 | do { | |
4689 | /* A "1" is shifted out to the EEPROM by setting bit "DI" to a "1", | |
4690 | * and then raising and then lowering the clock (the SK bit controls | |
4691 | * the clock input to the EEPROM). A "0" is shifted out to the EEPROM | |
4692 | * by setting "DI" to "0" and then raising and then lowering the clock. | |
4693 | */ | |
4694 | eecd &= ~E1000_EECD_DI; | |
4695 | ||
8fc897b0 | 4696 | if (data & mask) |
1da177e4 LT |
4697 | eecd |= E1000_EECD_DI; |
4698 | ||
4699 | E1000_WRITE_REG(hw, EECD, eecd); | |
4700 | E1000_WRITE_FLUSH(hw); | |
4701 | ||
4702 | udelay(eeprom->delay_usec); | |
4703 | ||
4704 | e1000_raise_ee_clk(hw, &eecd); | |
4705 | e1000_lower_ee_clk(hw, &eecd); | |
4706 | ||
4707 | mask = mask >> 1; | |
4708 | ||
8fc897b0 | 4709 | } while (mask); |
1da177e4 LT |
4710 | |
4711 | /* We leave the "DI" bit set to "0" when we leave this routine. */ | |
4712 | eecd &= ~E1000_EECD_DI; | |
4713 | E1000_WRITE_REG(hw, EECD, eecd); | |
4714 | } | |
4715 | ||
4716 | /****************************************************************************** | |
4717 | * Shift data bits in from the EEPROM | |
4718 | * | |
4719 | * hw - Struct containing variables accessed by shared code | |
4720 | *****************************************************************************/ | |
406874a7 | 4721 | static u16 |
1da177e4 | 4722 | e1000_shift_in_ee_bits(struct e1000_hw *hw, |
406874a7 | 4723 | u16 count) |
1da177e4 | 4724 | { |
406874a7 JP |
4725 | u32 eecd; |
4726 | u32 i; | |
4727 | u16 data; | |
1da177e4 LT |
4728 | |
4729 | /* In order to read a register from the EEPROM, we need to shift 'count' | |
4730 | * bits in from the EEPROM. Bits are "shifted in" by raising the clock | |
4731 | * input to the EEPROM (setting the SK bit), and then reading the value of | |
4732 | * the "DO" bit. During this "shifting in" process the "DI" bit should | |
4733 | * always be clear. | |
4734 | */ | |
4735 | ||
4736 | eecd = E1000_READ_REG(hw, EECD); | |
4737 | ||
4738 | eecd &= ~(E1000_EECD_DO | E1000_EECD_DI); | |
4739 | data = 0; | |
4740 | ||
8fc897b0 | 4741 | for (i = 0; i < count; i++) { |
1da177e4 LT |
4742 | data = data << 1; |
4743 | e1000_raise_ee_clk(hw, &eecd); | |
4744 | ||
4745 | eecd = E1000_READ_REG(hw, EECD); | |
4746 | ||
4747 | eecd &= ~(E1000_EECD_DI); | |
8fc897b0 | 4748 | if (eecd & E1000_EECD_DO) |
1da177e4 LT |
4749 | data |= 1; |
4750 | ||
4751 | e1000_lower_ee_clk(hw, &eecd); | |
4752 | } | |
4753 | ||
4754 | return data; | |
4755 | } | |
4756 | ||
4757 | /****************************************************************************** | |
4758 | * Prepares EEPROM for access | |
4759 | * | |
4760 | * hw - Struct containing variables accessed by shared code | |
4761 | * | |
4762 | * Lowers EEPROM clock. Clears input pin. Sets the chip select pin. This | |
4763 | * function should be called before issuing a command to the EEPROM. | |
4764 | *****************************************************************************/ | |
406874a7 | 4765 | static s32 |
1da177e4 LT |
4766 | e1000_acquire_eeprom(struct e1000_hw *hw) |
4767 | { | |
4768 | struct e1000_eeprom_info *eeprom = &hw->eeprom; | |
406874a7 | 4769 | u32 eecd, i=0; |
1da177e4 LT |
4770 | |
4771 | DEBUGFUNC("e1000_acquire_eeprom"); | |
4772 | ||
6418ecc6 JK |
4773 | if (e1000_swfw_sync_acquire(hw, E1000_SWFW_EEP_SM)) |
4774 | return -E1000_ERR_SWFW_SYNC; | |
1da177e4 LT |
4775 | eecd = E1000_READ_REG(hw, EECD); |
4776 | ||
2d7edb92 | 4777 | if (hw->mac_type != e1000_82573) { |
868d5309 | 4778 | /* Request EEPROM Access */ |
8fc897b0 | 4779 | if (hw->mac_type > e1000_82544) { |
868d5309 | 4780 | eecd |= E1000_EECD_REQ; |
1da177e4 | 4781 | E1000_WRITE_REG(hw, EECD, eecd); |
868d5309 | 4782 | eecd = E1000_READ_REG(hw, EECD); |
8fc897b0 | 4783 | while ((!(eecd & E1000_EECD_GNT)) && |
868d5309 MC |
4784 | (i < E1000_EEPROM_GRANT_ATTEMPTS)) { |
4785 | i++; | |
4786 | udelay(5); | |
4787 | eecd = E1000_READ_REG(hw, EECD); | |
4788 | } | |
8fc897b0 | 4789 | if (!(eecd & E1000_EECD_GNT)) { |
868d5309 MC |
4790 | eecd &= ~E1000_EECD_REQ; |
4791 | E1000_WRITE_REG(hw, EECD, eecd); | |
4792 | DEBUGOUT("Could not acquire EEPROM grant\n"); | |
6418ecc6 | 4793 | e1000_swfw_sync_release(hw, E1000_SWFW_EEP_SM); |
868d5309 MC |
4794 | return -E1000_ERR_EEPROM; |
4795 | } | |
1da177e4 LT |
4796 | } |
4797 | } | |
4798 | ||
4799 | /* Setup EEPROM for Read/Write */ | |
4800 | ||
4801 | if (eeprom->type == e1000_eeprom_microwire) { | |
4802 | /* Clear SK and DI */ | |
4803 | eecd &= ~(E1000_EECD_DI | E1000_EECD_SK); | |
4804 | E1000_WRITE_REG(hw, EECD, eecd); | |
4805 | ||
4806 | /* Set CS */ | |
4807 | eecd |= E1000_EECD_CS; | |
4808 | E1000_WRITE_REG(hw, EECD, eecd); | |
4809 | } else if (eeprom->type == e1000_eeprom_spi) { | |
4810 | /* Clear SK and CS */ | |
4811 | eecd &= ~(E1000_EECD_CS | E1000_EECD_SK); | |
4812 | E1000_WRITE_REG(hw, EECD, eecd); | |
4813 | udelay(1); | |
4814 | } | |
4815 | ||
4816 | return E1000_SUCCESS; | |
4817 | } | |
4818 | ||
4819 | /****************************************************************************** | |
4820 | * Returns EEPROM to a "standby" state | |
4821 | * | |
4822 | * hw - Struct containing variables accessed by shared code | |
4823 | *****************************************************************************/ | |
4824 | static void | |
4825 | e1000_standby_eeprom(struct e1000_hw *hw) | |
4826 | { | |
4827 | struct e1000_eeprom_info *eeprom = &hw->eeprom; | |
406874a7 | 4828 | u32 eecd; |
1da177e4 LT |
4829 | |
4830 | eecd = E1000_READ_REG(hw, EECD); | |
4831 | ||
8fc897b0 | 4832 | if (eeprom->type == e1000_eeprom_microwire) { |
1da177e4 LT |
4833 | eecd &= ~(E1000_EECD_CS | E1000_EECD_SK); |
4834 | E1000_WRITE_REG(hw, EECD, eecd); | |
4835 | E1000_WRITE_FLUSH(hw); | |
4836 | udelay(eeprom->delay_usec); | |
4837 | ||
4838 | /* Clock high */ | |
4839 | eecd |= E1000_EECD_SK; | |
4840 | E1000_WRITE_REG(hw, EECD, eecd); | |
4841 | E1000_WRITE_FLUSH(hw); | |
4842 | udelay(eeprom->delay_usec); | |
4843 | ||
4844 | /* Select EEPROM */ | |
4845 | eecd |= E1000_EECD_CS; | |
4846 | E1000_WRITE_REG(hw, EECD, eecd); | |
4847 | E1000_WRITE_FLUSH(hw); | |
4848 | udelay(eeprom->delay_usec); | |
4849 | ||
4850 | /* Clock low */ | |
4851 | eecd &= ~E1000_EECD_SK; | |
4852 | E1000_WRITE_REG(hw, EECD, eecd); | |
4853 | E1000_WRITE_FLUSH(hw); | |
4854 | udelay(eeprom->delay_usec); | |
8fc897b0 | 4855 | } else if (eeprom->type == e1000_eeprom_spi) { |
1da177e4 LT |
4856 | /* Toggle CS to flush commands */ |
4857 | eecd |= E1000_EECD_CS; | |
4858 | E1000_WRITE_REG(hw, EECD, eecd); | |
4859 | E1000_WRITE_FLUSH(hw); | |
4860 | udelay(eeprom->delay_usec); | |
4861 | eecd &= ~E1000_EECD_CS; | |
4862 | E1000_WRITE_REG(hw, EECD, eecd); | |
4863 | E1000_WRITE_FLUSH(hw); | |
4864 | udelay(eeprom->delay_usec); | |
4865 | } | |
4866 | } | |
4867 | ||
4868 | /****************************************************************************** | |
4869 | * Terminates a command by inverting the EEPROM's chip select pin | |
4870 | * | |
4871 | * hw - Struct containing variables accessed by shared code | |
4872 | *****************************************************************************/ | |
4873 | static void | |
4874 | e1000_release_eeprom(struct e1000_hw *hw) | |
4875 | { | |
406874a7 | 4876 | u32 eecd; |
1da177e4 LT |
4877 | |
4878 | DEBUGFUNC("e1000_release_eeprom"); | |
4879 | ||
4880 | eecd = E1000_READ_REG(hw, EECD); | |
4881 | ||
4882 | if (hw->eeprom.type == e1000_eeprom_spi) { | |
4883 | eecd |= E1000_EECD_CS; /* Pull CS high */ | |
4884 | eecd &= ~E1000_EECD_SK; /* Lower SCK */ | |
4885 | ||
4886 | E1000_WRITE_REG(hw, EECD, eecd); | |
4887 | ||
4888 | udelay(hw->eeprom.delay_usec); | |
8fc897b0 | 4889 | } else if (hw->eeprom.type == e1000_eeprom_microwire) { |
1da177e4 LT |
4890 | /* cleanup eeprom */ |
4891 | ||
4892 | /* CS on Microwire is active-high */ | |
4893 | eecd &= ~(E1000_EECD_CS | E1000_EECD_DI); | |
4894 | ||
4895 | E1000_WRITE_REG(hw, EECD, eecd); | |
4896 | ||
4897 | /* Rising edge of clock */ | |
4898 | eecd |= E1000_EECD_SK; | |
4899 | E1000_WRITE_REG(hw, EECD, eecd); | |
4900 | E1000_WRITE_FLUSH(hw); | |
4901 | udelay(hw->eeprom.delay_usec); | |
4902 | ||
4903 | /* Falling edge of clock */ | |
4904 | eecd &= ~E1000_EECD_SK; | |
4905 | E1000_WRITE_REG(hw, EECD, eecd); | |
4906 | E1000_WRITE_FLUSH(hw); | |
4907 | udelay(hw->eeprom.delay_usec); | |
4908 | } | |
4909 | ||
4910 | /* Stop requesting EEPROM access */ | |
8fc897b0 | 4911 | if (hw->mac_type > e1000_82544) { |
1da177e4 LT |
4912 | eecd &= ~E1000_EECD_REQ; |
4913 | E1000_WRITE_REG(hw, EECD, eecd); | |
4914 | } | |
2d7edb92 | 4915 | |
6418ecc6 | 4916 | e1000_swfw_sync_release(hw, E1000_SWFW_EEP_SM); |
1da177e4 LT |
4917 | } |
4918 | ||
4919 | /****************************************************************************** | |
4920 | * Reads a 16 bit word from the EEPROM. | |
4921 | * | |
4922 | * hw - Struct containing variables accessed by shared code | |
4923 | *****************************************************************************/ | |
406874a7 | 4924 | static s32 |
1da177e4 LT |
4925 | e1000_spi_eeprom_ready(struct e1000_hw *hw) |
4926 | { | |
406874a7 JP |
4927 | u16 retry_count = 0; |
4928 | u8 spi_stat_reg; | |
1da177e4 LT |
4929 | |
4930 | DEBUGFUNC("e1000_spi_eeprom_ready"); | |
4931 | ||
4932 | /* Read "Status Register" repeatedly until the LSB is cleared. The | |
4933 | * EEPROM will signal that the command has been completed by clearing | |
4934 | * bit 0 of the internal status register. If it's not cleared within | |
4935 | * 5 milliseconds, then error out. | |
4936 | */ | |
4937 | retry_count = 0; | |
4938 | do { | |
4939 | e1000_shift_out_ee_bits(hw, EEPROM_RDSR_OPCODE_SPI, | |
4940 | hw->eeprom.opcode_bits); | |
406874a7 | 4941 | spi_stat_reg = (u8)e1000_shift_in_ee_bits(hw, 8); |
1da177e4 LT |
4942 | if (!(spi_stat_reg & EEPROM_STATUS_RDY_SPI)) |
4943 | break; | |
4944 | ||
4945 | udelay(5); | |
4946 | retry_count += 5; | |
4947 | ||
4948 | e1000_standby_eeprom(hw); | |
8fc897b0 | 4949 | } while (retry_count < EEPROM_MAX_RETRY_SPI); |
1da177e4 LT |
4950 | |
4951 | /* ATMEL SPI write time could vary from 0-20mSec on 3.3V devices (and | |
4952 | * only 0-5mSec on 5V devices) | |
4953 | */ | |
8fc897b0 | 4954 | if (retry_count >= EEPROM_MAX_RETRY_SPI) { |
1da177e4 LT |
4955 | DEBUGOUT("SPI EEPROM Status error\n"); |
4956 | return -E1000_ERR_EEPROM; | |
4957 | } | |
4958 | ||
4959 | return E1000_SUCCESS; | |
4960 | } | |
4961 | ||
4962 | /****************************************************************************** | |
4963 | * Reads a 16 bit word from the EEPROM. | |
4964 | * | |
4965 | * hw - Struct containing variables accessed by shared code | |
4966 | * offset - offset of word in the EEPROM to read | |
4967 | * data - word read from the EEPROM | |
4968 | * words - number of words to read | |
4969 | *****************************************************************************/ | |
406874a7 | 4970 | s32 |
1da177e4 | 4971 | e1000_read_eeprom(struct e1000_hw *hw, |
406874a7 JP |
4972 | u16 offset, |
4973 | u16 words, | |
4974 | u16 *data) | |
1da177e4 LT |
4975 | { |
4976 | struct e1000_eeprom_info *eeprom = &hw->eeprom; | |
406874a7 | 4977 | u32 i = 0; |
1da177e4 LT |
4978 | |
4979 | DEBUGFUNC("e1000_read_eeprom"); | |
2d7edb92 | 4980 | |
2a88c173 JK |
4981 | /* If eeprom is not yet detected, do so now */ |
4982 | if (eeprom->word_size == 0) | |
4983 | e1000_init_eeprom_params(hw); | |
4984 | ||
1da177e4 LT |
4985 | /* A check for invalid values: offset too large, too many words, and not |
4986 | * enough words. | |
4987 | */ | |
8fc897b0 | 4988 | if ((offset >= eeprom->word_size) || (words > eeprom->word_size - offset) || |
1da177e4 | 4989 | (words == 0)) { |
2a88c173 | 4990 | DEBUGOUT2("\"words\" parameter out of bounds. Words = %d, size = %d\n", offset, eeprom->word_size); |
1da177e4 LT |
4991 | return -E1000_ERR_EEPROM; |
4992 | } | |
4993 | ||
2a88c173 JK |
4994 | /* EEPROM's that don't use EERD to read require us to bit-bang the SPI |
4995 | * directly. In this case, we need to acquire the EEPROM so that | |
4996 | * FW or other port software does not interrupt. | |
4997 | */ | |
c3033b01 | 4998 | if (e1000_is_onboard_nvm_eeprom(hw) && !hw->eeprom.use_eerd) { |
2a88c173 JK |
4999 | /* Prepare the EEPROM for bit-bang reading */ |
5000 | if (e1000_acquire_eeprom(hw) != E1000_SUCCESS) | |
5001 | return -E1000_ERR_EEPROM; | |
2d7edb92 MC |
5002 | } |
5003 | ||
2a88c173 | 5004 | /* Eerd register EEPROM access requires no eeprom aquire/release */ |
c3033b01 | 5005 | if (eeprom->use_eerd) |
2a88c173 | 5006 | return e1000_read_eeprom_eerd(hw, offset, words, data); |
1da177e4 | 5007 | |
2a88c173 | 5008 | /* ICH EEPROM access is done via the ICH flash controller */ |
cd94dd0b AK |
5009 | if (eeprom->type == e1000_eeprom_ich8) |
5010 | return e1000_read_eeprom_ich8(hw, offset, words, data); | |
5011 | ||
2a88c173 JK |
5012 | /* Set up the SPI or Microwire EEPROM for bit-bang reading. We have |
5013 | * acquired the EEPROM at this point, so any returns should relase it */ | |
cd94dd0b | 5014 | if (eeprom->type == e1000_eeprom_spi) { |
406874a7 JP |
5015 | u16 word_in; |
5016 | u8 read_opcode = EEPROM_READ_OPCODE_SPI; | |
1da177e4 | 5017 | |
8fc897b0 | 5018 | if (e1000_spi_eeprom_ready(hw)) { |
1da177e4 LT |
5019 | e1000_release_eeprom(hw); |
5020 | return -E1000_ERR_EEPROM; | |
5021 | } | |
5022 | ||
5023 | e1000_standby_eeprom(hw); | |
5024 | ||
5025 | /* Some SPI eeproms use the 8th address bit embedded in the opcode */ | |
8fc897b0 | 5026 | if ((eeprom->address_bits == 8) && (offset >= 128)) |
1da177e4 LT |
5027 | read_opcode |= EEPROM_A8_OPCODE_SPI; |
5028 | ||
5029 | /* Send the READ command (opcode + addr) */ | |
5030 | e1000_shift_out_ee_bits(hw, read_opcode, eeprom->opcode_bits); | |
406874a7 | 5031 | e1000_shift_out_ee_bits(hw, (u16)(offset*2), eeprom->address_bits); |
1da177e4 LT |
5032 | |
5033 | /* Read the data. The address of the eeprom internally increments with | |
5034 | * each byte (spi) being read, saving on the overhead of eeprom setup | |
5035 | * and tear-down. The address counter will roll over if reading beyond | |
5036 | * the size of the eeprom, thus allowing the entire memory to be read | |
5037 | * starting from any offset. */ | |
5038 | for (i = 0; i < words; i++) { | |
5039 | word_in = e1000_shift_in_ee_bits(hw, 16); | |
5040 | data[i] = (word_in >> 8) | (word_in << 8); | |
5041 | } | |
8fc897b0 | 5042 | } else if (eeprom->type == e1000_eeprom_microwire) { |
1da177e4 LT |
5043 | for (i = 0; i < words; i++) { |
5044 | /* Send the READ command (opcode + addr) */ | |
5045 | e1000_shift_out_ee_bits(hw, EEPROM_READ_OPCODE_MICROWIRE, | |
5046 | eeprom->opcode_bits); | |
406874a7 | 5047 | e1000_shift_out_ee_bits(hw, (u16)(offset + i), |
1da177e4 LT |
5048 | eeprom->address_bits); |
5049 | ||
5050 | /* Read the data. For microwire, each word requires the overhead | |
5051 | * of eeprom setup and tear-down. */ | |
5052 | data[i] = e1000_shift_in_ee_bits(hw, 16); | |
5053 | e1000_standby_eeprom(hw); | |
5054 | } | |
5055 | } | |
5056 | ||
5057 | /* End this read operation */ | |
5058 | e1000_release_eeprom(hw); | |
5059 | ||
5060 | return E1000_SUCCESS; | |
5061 | } | |
5062 | ||
5063 | /****************************************************************************** | |
2d7edb92 | 5064 | * Reads a 16 bit word from the EEPROM using the EERD register. |
1da177e4 LT |
5065 | * |
5066 | * hw - Struct containing variables accessed by shared code | |
2d7edb92 MC |
5067 | * offset - offset of word in the EEPROM to read |
5068 | * data - word read from the EEPROM | |
5069 | * words - number of words to read | |
1da177e4 | 5070 | *****************************************************************************/ |
406874a7 | 5071 | static s32 |
2d7edb92 | 5072 | e1000_read_eeprom_eerd(struct e1000_hw *hw, |
406874a7 JP |
5073 | u16 offset, |
5074 | u16 words, | |
5075 | u16 *data) | |
1da177e4 | 5076 | { |
406874a7 JP |
5077 | u32 i, eerd = 0; |
5078 | s32 error = 0; | |
1da177e4 | 5079 | |
2d7edb92 MC |
5080 | for (i = 0; i < words; i++) { |
5081 | eerd = ((offset+i) << E1000_EEPROM_RW_ADDR_SHIFT) + | |
5082 | E1000_EEPROM_RW_REG_START; | |
1da177e4 | 5083 | |
2d7edb92 MC |
5084 | E1000_WRITE_REG(hw, EERD, eerd); |
5085 | error = e1000_poll_eerd_eewr_done(hw, E1000_EEPROM_POLL_READ); | |
76c224bc | 5086 | |
8fc897b0 | 5087 | if (error) { |
2d7edb92 | 5088 | break; |
1da177e4 | 5089 | } |
2d7edb92 | 5090 | data[i] = (E1000_READ_REG(hw, EERD) >> E1000_EEPROM_RW_REG_DATA); |
76c224bc | 5091 | |
1da177e4 | 5092 | } |
76c224bc | 5093 | |
2d7edb92 | 5094 | return error; |
1da177e4 LT |
5095 | } |
5096 | ||
5097 | /****************************************************************************** | |
2d7edb92 | 5098 | * Writes a 16 bit word from the EEPROM using the EEWR register. |
1da177e4 LT |
5099 | * |
5100 | * hw - Struct containing variables accessed by shared code | |
2d7edb92 MC |
5101 | * offset - offset of word in the EEPROM to read |
5102 | * data - word read from the EEPROM | |
5103 | * words - number of words to read | |
1da177e4 | 5104 | *****************************************************************************/ |
406874a7 | 5105 | static s32 |
2d7edb92 | 5106 | e1000_write_eeprom_eewr(struct e1000_hw *hw, |
406874a7 JP |
5107 | u16 offset, |
5108 | u16 words, | |
5109 | u16 *data) | |
1da177e4 | 5110 | { |
406874a7 JP |
5111 | u32 register_value = 0; |
5112 | u32 i = 0; | |
5113 | s32 error = 0; | |
1da177e4 | 5114 | |
6418ecc6 JK |
5115 | if (e1000_swfw_sync_acquire(hw, E1000_SWFW_EEP_SM)) |
5116 | return -E1000_ERR_SWFW_SYNC; | |
5117 | ||
2d7edb92 | 5118 | for (i = 0; i < words; i++) { |
76c224bc AK |
5119 | register_value = (data[i] << E1000_EEPROM_RW_REG_DATA) | |
5120 | ((offset+i) << E1000_EEPROM_RW_ADDR_SHIFT) | | |
2d7edb92 | 5121 | E1000_EEPROM_RW_REG_START; |
1da177e4 | 5122 | |
2d7edb92 | 5123 | error = e1000_poll_eerd_eewr_done(hw, E1000_EEPROM_POLL_WRITE); |
8fc897b0 | 5124 | if (error) { |
2d7edb92 | 5125 | break; |
76c224bc | 5126 | } |
2d7edb92 MC |
5127 | |
5128 | E1000_WRITE_REG(hw, EEWR, register_value); | |
76c224bc | 5129 | |
2d7edb92 | 5130 | error = e1000_poll_eerd_eewr_done(hw, E1000_EEPROM_POLL_WRITE); |
76c224bc | 5131 | |
8fc897b0 | 5132 | if (error) { |
2d7edb92 | 5133 | break; |
76c224bc | 5134 | } |
2d7edb92 | 5135 | } |
76c224bc | 5136 | |
6418ecc6 | 5137 | e1000_swfw_sync_release(hw, E1000_SWFW_EEP_SM); |
2d7edb92 MC |
5138 | return error; |
5139 | } | |
5140 | ||
5141 | /****************************************************************************** | |
5142 | * Polls the status bit (bit 1) of the EERD to determine when the read is done. | |
5143 | * | |
5144 | * hw - Struct containing variables accessed by shared code | |
5145 | *****************************************************************************/ | |
406874a7 | 5146 | static s32 |
2d7edb92 MC |
5147 | e1000_poll_eerd_eewr_done(struct e1000_hw *hw, int eerd) |
5148 | { | |
406874a7 JP |
5149 | u32 attempts = 100000; |
5150 | u32 i, reg = 0; | |
5151 | s32 done = E1000_ERR_EEPROM; | |
2d7edb92 | 5152 | |
8fc897b0 AK |
5153 | for (i = 0; i < attempts; i++) { |
5154 | if (eerd == E1000_EEPROM_POLL_READ) | |
2d7edb92 | 5155 | reg = E1000_READ_REG(hw, EERD); |
76c224bc | 5156 | else |
2d7edb92 MC |
5157 | reg = E1000_READ_REG(hw, EEWR); |
5158 | ||
8fc897b0 | 5159 | if (reg & E1000_EEPROM_RW_REG_DONE) { |
2d7edb92 MC |
5160 | done = E1000_SUCCESS; |
5161 | break; | |
5162 | } | |
5163 | udelay(5); | |
5164 | } | |
5165 | ||
5166 | return done; | |
5167 | } | |
5168 | ||
5169 | /*************************************************************************** | |
5170 | * Description: Determines if the onboard NVM is FLASH or EEPROM. | |
5171 | * | |
5172 | * hw - Struct containing variables accessed by shared code | |
5173 | ****************************************************************************/ | |
c3033b01 | 5174 | static bool |
2d7edb92 MC |
5175 | e1000_is_onboard_nvm_eeprom(struct e1000_hw *hw) |
5176 | { | |
406874a7 | 5177 | u32 eecd = 0; |
2d7edb92 | 5178 | |
6418ecc6 JK |
5179 | DEBUGFUNC("e1000_is_onboard_nvm_eeprom"); |
5180 | ||
cd94dd0b | 5181 | if (hw->mac_type == e1000_ich8lan) |
c3033b01 | 5182 | return false; |
cd94dd0b AK |
5183 | |
5184 | if (hw->mac_type == e1000_82573) { | |
2d7edb92 MC |
5185 | eecd = E1000_READ_REG(hw, EECD); |
5186 | ||
5187 | /* Isolate bits 15 & 16 */ | |
5188 | eecd = ((eecd >> 15) & 0x03); | |
5189 | ||
5190 | /* If both bits are set, device is Flash type */ | |
8fc897b0 | 5191 | if (eecd == 0x03) { |
c3033b01 | 5192 | return false; |
2d7edb92 MC |
5193 | } |
5194 | } | |
c3033b01 | 5195 | return true; |
2d7edb92 MC |
5196 | } |
5197 | ||
5198 | /****************************************************************************** | |
5199 | * Verifies that the EEPROM has a valid checksum | |
5200 | * | |
5201 | * hw - Struct containing variables accessed by shared code | |
5202 | * | |
5203 | * Reads the first 64 16 bit words of the EEPROM and sums the values read. | |
5204 | * If the the sum of the 64 16 bit words is 0xBABA, the EEPROM's checksum is | |
5205 | * valid. | |
5206 | *****************************************************************************/ | |
406874a7 | 5207 | s32 |
2d7edb92 MC |
5208 | e1000_validate_eeprom_checksum(struct e1000_hw *hw) |
5209 | { | |
406874a7 JP |
5210 | u16 checksum = 0; |
5211 | u16 i, eeprom_data; | |
2d7edb92 MC |
5212 | |
5213 | DEBUGFUNC("e1000_validate_eeprom_checksum"); | |
5214 | ||
c3033b01 | 5215 | if ((hw->mac_type == e1000_82573) && !e1000_is_onboard_nvm_eeprom(hw)) { |
2d7edb92 MC |
5216 | /* Check bit 4 of word 10h. If it is 0, firmware is done updating |
5217 | * 10h-12h. Checksum may need to be fixed. */ | |
5218 | e1000_read_eeprom(hw, 0x10, 1, &eeprom_data); | |
5219 | if ((eeprom_data & 0x10) == 0) { | |
5220 | /* Read 0x23 and check bit 15. This bit is a 1 when the checksum | |
5221 | * has already been fixed. If the checksum is still wrong and this | |
5222 | * bit is a 1, we need to return bad checksum. Otherwise, we need | |
5223 | * to set this bit to a 1 and update the checksum. */ | |
5224 | e1000_read_eeprom(hw, 0x23, 1, &eeprom_data); | |
5225 | if ((eeprom_data & 0x8000) == 0) { | |
5226 | eeprom_data |= 0x8000; | |
5227 | e1000_write_eeprom(hw, 0x23, 1, &eeprom_data); | |
5228 | e1000_update_eeprom_checksum(hw); | |
5229 | } | |
5230 | } | |
5231 | } | |
5232 | ||
cd94dd0b AK |
5233 | if (hw->mac_type == e1000_ich8lan) { |
5234 | /* Drivers must allocate the shadow ram structure for the | |
5235 | * EEPROM checksum to be updated. Otherwise, this bit as well | |
5236 | * as the checksum must both be set correctly for this | |
5237 | * validation to pass. | |
5238 | */ | |
5239 | e1000_read_eeprom(hw, 0x19, 1, &eeprom_data); | |
5240 | if ((eeprom_data & 0x40) == 0) { | |
5241 | eeprom_data |= 0x40; | |
5242 | e1000_write_eeprom(hw, 0x19, 1, &eeprom_data); | |
5243 | e1000_update_eeprom_checksum(hw); | |
5244 | } | |
5245 | } | |
5246 | ||
5247 | for (i = 0; i < (EEPROM_CHECKSUM_REG + 1); i++) { | |
5248 | if (e1000_read_eeprom(hw, i, 1, &eeprom_data) < 0) { | |
2d7edb92 MC |
5249 | DEBUGOUT("EEPROM Read Error\n"); |
5250 | return -E1000_ERR_EEPROM; | |
5251 | } | |
5252 | checksum += eeprom_data; | |
5253 | } | |
5254 | ||
406874a7 | 5255 | if (checksum == (u16) EEPROM_SUM) |
2d7edb92 MC |
5256 | return E1000_SUCCESS; |
5257 | else { | |
5258 | DEBUGOUT("EEPROM Checksum Invalid\n"); | |
5259 | return -E1000_ERR_EEPROM; | |
5260 | } | |
5261 | } | |
5262 | ||
5263 | /****************************************************************************** | |
5264 | * Calculates the EEPROM checksum and writes it to the EEPROM | |
5265 | * | |
5266 | * hw - Struct containing variables accessed by shared code | |
5267 | * | |
5268 | * Sums the first 63 16 bit words of the EEPROM. Subtracts the sum from 0xBABA. | |
5269 | * Writes the difference to word offset 63 of the EEPROM. | |
5270 | *****************************************************************************/ | |
406874a7 | 5271 | s32 |
2d7edb92 MC |
5272 | e1000_update_eeprom_checksum(struct e1000_hw *hw) |
5273 | { | |
406874a7 JP |
5274 | u32 ctrl_ext; |
5275 | u16 checksum = 0; | |
5276 | u16 i, eeprom_data; | |
2d7edb92 MC |
5277 | |
5278 | DEBUGFUNC("e1000_update_eeprom_checksum"); | |
5279 | ||
8fc897b0 AK |
5280 | for (i = 0; i < EEPROM_CHECKSUM_REG; i++) { |
5281 | if (e1000_read_eeprom(hw, i, 1, &eeprom_data) < 0) { | |
2d7edb92 MC |
5282 | DEBUGOUT("EEPROM Read Error\n"); |
5283 | return -E1000_ERR_EEPROM; | |
5284 | } | |
5285 | checksum += eeprom_data; | |
5286 | } | |
406874a7 | 5287 | checksum = (u16) EEPROM_SUM - checksum; |
8fc897b0 | 5288 | if (e1000_write_eeprom(hw, EEPROM_CHECKSUM_REG, 1, &checksum) < 0) { |
1da177e4 LT |
5289 | DEBUGOUT("EEPROM Write Error\n"); |
5290 | return -E1000_ERR_EEPROM; | |
2d7edb92 MC |
5291 | } else if (hw->eeprom.type == e1000_eeprom_flash) { |
5292 | e1000_commit_shadow_ram(hw); | |
cd94dd0b AK |
5293 | } else if (hw->eeprom.type == e1000_eeprom_ich8) { |
5294 | e1000_commit_shadow_ram(hw); | |
5295 | /* Reload the EEPROM, or else modifications will not appear | |
5296 | * until after next adapter reset. */ | |
5297 | ctrl_ext = E1000_READ_REG(hw, CTRL_EXT); | |
5298 | ctrl_ext |= E1000_CTRL_EXT_EE_RST; | |
5299 | E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext); | |
f8ec4733 | 5300 | msleep(10); |
1da177e4 LT |
5301 | } |
5302 | return E1000_SUCCESS; | |
5303 | } | |
5304 | ||
5305 | /****************************************************************************** | |
5306 | * Parent function for writing words to the different EEPROM types. | |
5307 | * | |
5308 | * hw - Struct containing variables accessed by shared code | |
5309 | * offset - offset within the EEPROM to be written to | |
5310 | * words - number of words to write | |
5311 | * data - 16 bit word to be written to the EEPROM | |
5312 | * | |
5313 | * If e1000_update_eeprom_checksum is not called after this function, the | |
5314 | * EEPROM will most likely contain an invalid checksum. | |
5315 | *****************************************************************************/ | |
406874a7 | 5316 | s32 |
1da177e4 | 5317 | e1000_write_eeprom(struct e1000_hw *hw, |
406874a7 JP |
5318 | u16 offset, |
5319 | u16 words, | |
5320 | u16 *data) | |
1da177e4 LT |
5321 | { |
5322 | struct e1000_eeprom_info *eeprom = &hw->eeprom; | |
406874a7 | 5323 | s32 status = 0; |
1da177e4 LT |
5324 | |
5325 | DEBUGFUNC("e1000_write_eeprom"); | |
5326 | ||
2a88c173 JK |
5327 | /* If eeprom is not yet detected, do so now */ |
5328 | if (eeprom->word_size == 0) | |
5329 | e1000_init_eeprom_params(hw); | |
5330 | ||
1da177e4 LT |
5331 | /* A check for invalid values: offset too large, too many words, and not |
5332 | * enough words. | |
5333 | */ | |
8fc897b0 | 5334 | if ((offset >= eeprom->word_size) || (words > eeprom->word_size - offset) || |
1da177e4 LT |
5335 | (words == 0)) { |
5336 | DEBUGOUT("\"words\" parameter out of bounds\n"); | |
5337 | return -E1000_ERR_EEPROM; | |
5338 | } | |
5339 | ||
868d5309 | 5340 | /* 82573 writes only through eewr */ |
c3033b01 | 5341 | if (eeprom->use_eewr) |
2d7edb92 MC |
5342 | return e1000_write_eeprom_eewr(hw, offset, words, data); |
5343 | ||
cd94dd0b AK |
5344 | if (eeprom->type == e1000_eeprom_ich8) |
5345 | return e1000_write_eeprom_ich8(hw, offset, words, data); | |
5346 | ||
1da177e4 LT |
5347 | /* Prepare the EEPROM for writing */ |
5348 | if (e1000_acquire_eeprom(hw) != E1000_SUCCESS) | |
5349 | return -E1000_ERR_EEPROM; | |
5350 | ||
8fc897b0 | 5351 | if (eeprom->type == e1000_eeprom_microwire) { |
1da177e4 LT |
5352 | status = e1000_write_eeprom_microwire(hw, offset, words, data); |
5353 | } else { | |
5354 | status = e1000_write_eeprom_spi(hw, offset, words, data); | |
f8ec4733 | 5355 | msleep(10); |
1da177e4 LT |
5356 | } |
5357 | ||
5358 | /* Done with writing */ | |
5359 | e1000_release_eeprom(hw); | |
5360 | ||
5361 | return status; | |
5362 | } | |
5363 | ||
5364 | /****************************************************************************** | |
5365 | * Writes a 16 bit word to a given offset in an SPI EEPROM. | |
5366 | * | |
5367 | * hw - Struct containing variables accessed by shared code | |
5368 | * offset - offset within the EEPROM to be written to | |
5369 | * words - number of words to write | |
5370 | * data - pointer to array of 8 bit words to be written to the EEPROM | |
5371 | * | |
5372 | *****************************************************************************/ | |
406874a7 | 5373 | static s32 |
1da177e4 | 5374 | e1000_write_eeprom_spi(struct e1000_hw *hw, |
406874a7 JP |
5375 | u16 offset, |
5376 | u16 words, | |
5377 | u16 *data) | |
1da177e4 LT |
5378 | { |
5379 | struct e1000_eeprom_info *eeprom = &hw->eeprom; | |
406874a7 | 5380 | u16 widx = 0; |
1da177e4 LT |
5381 | |
5382 | DEBUGFUNC("e1000_write_eeprom_spi"); | |
5383 | ||
5384 | while (widx < words) { | |
406874a7 | 5385 | u8 write_opcode = EEPROM_WRITE_OPCODE_SPI; |
1da177e4 | 5386 | |
8fc897b0 | 5387 | if (e1000_spi_eeprom_ready(hw)) return -E1000_ERR_EEPROM; |
1da177e4 LT |
5388 | |
5389 | e1000_standby_eeprom(hw); | |
5390 | ||
5391 | /* Send the WRITE ENABLE command (8 bit opcode ) */ | |
5392 | e1000_shift_out_ee_bits(hw, EEPROM_WREN_OPCODE_SPI, | |
5393 | eeprom->opcode_bits); | |
5394 | ||
5395 | e1000_standby_eeprom(hw); | |
5396 | ||
5397 | /* Some SPI eeproms use the 8th address bit embedded in the opcode */ | |
8fc897b0 | 5398 | if ((eeprom->address_bits == 8) && (offset >= 128)) |
1da177e4 LT |
5399 | write_opcode |= EEPROM_A8_OPCODE_SPI; |
5400 | ||
5401 | /* Send the Write command (8-bit opcode + addr) */ | |
5402 | e1000_shift_out_ee_bits(hw, write_opcode, eeprom->opcode_bits); | |
5403 | ||
406874a7 | 5404 | e1000_shift_out_ee_bits(hw, (u16)((offset + widx)*2), |
1da177e4 LT |
5405 | eeprom->address_bits); |
5406 | ||
5407 | /* Send the data */ | |
5408 | ||
5409 | /* Loop to allow for up to whole page write (32 bytes) of eeprom */ | |
5410 | while (widx < words) { | |
406874a7 | 5411 | u16 word_out = data[widx]; |
1da177e4 LT |
5412 | word_out = (word_out >> 8) | (word_out << 8); |
5413 | e1000_shift_out_ee_bits(hw, word_out, 16); | |
5414 | widx++; | |
5415 | ||
5416 | /* Some larger eeprom sizes are capable of a 32-byte PAGE WRITE | |
5417 | * operation, while the smaller eeproms are capable of an 8-byte | |
5418 | * PAGE WRITE operation. Break the inner loop to pass new address | |
5419 | */ | |
8fc897b0 | 5420 | if ((((offset + widx)*2) % eeprom->page_size) == 0) { |
1da177e4 LT |
5421 | e1000_standby_eeprom(hw); |
5422 | break; | |
5423 | } | |
5424 | } | |
5425 | } | |
5426 | ||
5427 | return E1000_SUCCESS; | |
5428 | } | |
5429 | ||
5430 | /****************************************************************************** | |
5431 | * Writes a 16 bit word to a given offset in a Microwire EEPROM. | |
5432 | * | |
5433 | * hw - Struct containing variables accessed by shared code | |
5434 | * offset - offset within the EEPROM to be written to | |
5435 | * words - number of words to write | |
5436 | * data - pointer to array of 16 bit words to be written to the EEPROM | |
5437 | * | |
5438 | *****************************************************************************/ | |
406874a7 | 5439 | static s32 |
1da177e4 | 5440 | e1000_write_eeprom_microwire(struct e1000_hw *hw, |
406874a7 JP |
5441 | u16 offset, |
5442 | u16 words, | |
5443 | u16 *data) | |
1da177e4 LT |
5444 | { |
5445 | struct e1000_eeprom_info *eeprom = &hw->eeprom; | |
406874a7 JP |
5446 | u32 eecd; |
5447 | u16 words_written = 0; | |
5448 | u16 i = 0; | |
1da177e4 LT |
5449 | |
5450 | DEBUGFUNC("e1000_write_eeprom_microwire"); | |
5451 | ||
5452 | /* Send the write enable command to the EEPROM (3-bit opcode plus | |
5453 | * 6/8-bit dummy address beginning with 11). It's less work to include | |
5454 | * the 11 of the dummy address as part of the opcode than it is to shift | |
5455 | * it over the correct number of bits for the address. This puts the | |
5456 | * EEPROM into write/erase mode. | |
5457 | */ | |
5458 | e1000_shift_out_ee_bits(hw, EEPROM_EWEN_OPCODE_MICROWIRE, | |
406874a7 | 5459 | (u16)(eeprom->opcode_bits + 2)); |
1da177e4 | 5460 | |
406874a7 | 5461 | e1000_shift_out_ee_bits(hw, 0, (u16)(eeprom->address_bits - 2)); |
1da177e4 LT |
5462 | |
5463 | /* Prepare the EEPROM */ | |
5464 | e1000_standby_eeprom(hw); | |
5465 | ||
5466 | while (words_written < words) { | |
5467 | /* Send the Write command (3-bit opcode + addr) */ | |
5468 | e1000_shift_out_ee_bits(hw, EEPROM_WRITE_OPCODE_MICROWIRE, | |
5469 | eeprom->opcode_bits); | |
5470 | ||
406874a7 | 5471 | e1000_shift_out_ee_bits(hw, (u16)(offset + words_written), |
1da177e4 LT |
5472 | eeprom->address_bits); |
5473 | ||
5474 | /* Send the data */ | |
5475 | e1000_shift_out_ee_bits(hw, data[words_written], 16); | |
5476 | ||
5477 | /* Toggle the CS line. This in effect tells the EEPROM to execute | |
5478 | * the previous command. | |
5479 | */ | |
5480 | e1000_standby_eeprom(hw); | |
5481 | ||
5482 | /* Read DO repeatedly until it is high (equal to '1'). The EEPROM will | |
5483 | * signal that the command has been completed by raising the DO signal. | |
5484 | * If DO does not go high in 10 milliseconds, then error out. | |
5485 | */ | |
8fc897b0 | 5486 | for (i = 0; i < 200; i++) { |
1da177e4 | 5487 | eecd = E1000_READ_REG(hw, EECD); |
8fc897b0 | 5488 | if (eecd & E1000_EECD_DO) break; |
1da177e4 LT |
5489 | udelay(50); |
5490 | } | |
8fc897b0 | 5491 | if (i == 200) { |
1da177e4 LT |
5492 | DEBUGOUT("EEPROM Write did not complete\n"); |
5493 | return -E1000_ERR_EEPROM; | |
5494 | } | |
5495 | ||
5496 | /* Recover from write */ | |
5497 | e1000_standby_eeprom(hw); | |
5498 | ||
5499 | words_written++; | |
5500 | } | |
5501 | ||
5502 | /* Send the write disable command to the EEPROM (3-bit opcode plus | |
5503 | * 6/8-bit dummy address beginning with 10). It's less work to include | |
5504 | * the 10 of the dummy address as part of the opcode than it is to shift | |
5505 | * it over the correct number of bits for the address. This takes the | |
5506 | * EEPROM out of write/erase mode. | |
5507 | */ | |
5508 | e1000_shift_out_ee_bits(hw, EEPROM_EWDS_OPCODE_MICROWIRE, | |
406874a7 | 5509 | (u16)(eeprom->opcode_bits + 2)); |
1da177e4 | 5510 | |
406874a7 | 5511 | e1000_shift_out_ee_bits(hw, 0, (u16)(eeprom->address_bits - 2)); |
1da177e4 LT |
5512 | |
5513 | return E1000_SUCCESS; | |
5514 | } | |
5515 | ||
2d7edb92 MC |
5516 | /****************************************************************************** |
5517 | * Flushes the cached eeprom to NVM. This is done by saving the modified values | |
5518 | * in the eeprom cache and the non modified values in the currently active bank | |
5519 | * to the new bank. | |
5520 | * | |
5521 | * hw - Struct containing variables accessed by shared code | |
5522 | * offset - offset of word in the EEPROM to read | |
5523 | * data - word read from the EEPROM | |
5524 | * words - number of words to read | |
5525 | *****************************************************************************/ | |
406874a7 | 5526 | static s32 |
2d7edb92 MC |
5527 | e1000_commit_shadow_ram(struct e1000_hw *hw) |
5528 | { | |
406874a7 JP |
5529 | u32 attempts = 100000; |
5530 | u32 eecd = 0; | |
5531 | u32 flop = 0; | |
5532 | u32 i = 0; | |
5533 | s32 error = E1000_SUCCESS; | |
5534 | u32 old_bank_offset = 0; | |
5535 | u32 new_bank_offset = 0; | |
5536 | u8 low_byte = 0; | |
5537 | u8 high_byte = 0; | |
c3033b01 | 5538 | bool sector_write_failed = false; |
2d7edb92 MC |
5539 | |
5540 | if (hw->mac_type == e1000_82573) { | |
cd94dd0b AK |
5541 | /* The flop register will be used to determine if flash type is STM */ |
5542 | flop = E1000_READ_REG(hw, FLOP); | |
2d7edb92 MC |
5543 | for (i=0; i < attempts; i++) { |
5544 | eecd = E1000_READ_REG(hw, EECD); | |
5545 | if ((eecd & E1000_EECD_FLUPD) == 0) { | |
5546 | break; | |
5547 | } | |
5548 | udelay(5); | |
5549 | } | |
5550 | ||
5551 | if (i == attempts) { | |
5552 | return -E1000_ERR_EEPROM; | |
5553 | } | |
5554 | ||
96838a40 | 5555 | /* If STM opcode located in bits 15:8 of flop, reset firmware */ |
2d7edb92 MC |
5556 | if ((flop & 0xFF00) == E1000_STM_OPCODE) { |
5557 | E1000_WRITE_REG(hw, HICR, E1000_HICR_FW_RESET); | |
5558 | } | |
5559 | ||
5560 | /* Perform the flash update */ | |
5561 | E1000_WRITE_REG(hw, EECD, eecd | E1000_EECD_FLUPD); | |
5562 | ||
96838a40 | 5563 | for (i=0; i < attempts; i++) { |
2d7edb92 MC |
5564 | eecd = E1000_READ_REG(hw, EECD); |
5565 | if ((eecd & E1000_EECD_FLUPD) == 0) { | |
5566 | break; | |
5567 | } | |
5568 | udelay(5); | |
5569 | } | |
5570 | ||
5571 | if (i == attempts) { | |
5572 | return -E1000_ERR_EEPROM; | |
5573 | } | |
5574 | } | |
5575 | ||
cd94dd0b AK |
5576 | if (hw->mac_type == e1000_ich8lan && hw->eeprom_shadow_ram != NULL) { |
5577 | /* We're writing to the opposite bank so if we're on bank 1, | |
5578 | * write to bank 0 etc. We also need to erase the segment that | |
5579 | * is going to be written */ | |
5580 | if (!(E1000_READ_REG(hw, EECD) & E1000_EECD_SEC1VAL)) { | |
5581 | new_bank_offset = hw->flash_bank_size * 2; | |
5582 | old_bank_offset = 0; | |
5583 | e1000_erase_ich8_4k_segment(hw, 1); | |
5584 | } else { | |
5585 | old_bank_offset = hw->flash_bank_size * 2; | |
5586 | new_bank_offset = 0; | |
5587 | e1000_erase_ich8_4k_segment(hw, 0); | |
5588 | } | |
5589 | ||
c3033b01 | 5590 | sector_write_failed = false; |
2a88c173 JK |
5591 | /* Loop for every byte in the shadow RAM, |
5592 | * which is in units of words. */ | |
5593 | for (i = 0; i < E1000_SHADOW_RAM_WORDS; i++) { | |
5594 | /* Determine whether to write the value stored | |
5595 | * in the other NVM bank or a modified value stored | |
5596 | * in the shadow RAM */ | |
c3033b01 | 5597 | if (hw->eeprom_shadow_ram[i].modified) { |
406874a7 | 5598 | low_byte = (u8)hw->eeprom_shadow_ram[i].eeprom_word; |
2a88c173 JK |
5599 | udelay(100); |
5600 | error = e1000_verify_write_ich8_byte(hw, | |
5601 | (i << 1) + new_bank_offset, low_byte); | |
5602 | ||
5603 | if (error != E1000_SUCCESS) | |
c3033b01 | 5604 | sector_write_failed = true; |
2a88c173 | 5605 | else { |
cd94dd0b | 5606 | high_byte = |
406874a7 | 5607 | (u8)(hw->eeprom_shadow_ram[i].eeprom_word >> 8); |
cd94dd0b | 5608 | udelay(100); |
2a88c173 JK |
5609 | } |
5610 | } else { | |
5611 | e1000_read_ich8_byte(hw, (i << 1) + old_bank_offset, | |
5612 | &low_byte); | |
5613 | udelay(100); | |
5614 | error = e1000_verify_write_ich8_byte(hw, | |
5615 | (i << 1) + new_bank_offset, low_byte); | |
5616 | ||
5617 | if (error != E1000_SUCCESS) | |
c3033b01 | 5618 | sector_write_failed = true; |
2a88c173 | 5619 | else { |
cd94dd0b AK |
5620 | e1000_read_ich8_byte(hw, (i << 1) + old_bank_offset + 1, |
5621 | &high_byte); | |
2a88c173 | 5622 | udelay(100); |
cd94dd0b | 5623 | } |
2a88c173 | 5624 | } |
cd94dd0b | 5625 | |
c3033b01 | 5626 | /* If the write of the low byte was successful, go ahead and |
2a88c173 JK |
5627 | * write the high byte while checking to make sure that if it |
5628 | * is the signature byte, then it is handled properly */ | |
c3033b01 | 5629 | if (!sector_write_failed) { |
cd94dd0b AK |
5630 | /* If the word is 0x13, then make sure the signature bits |
5631 | * (15:14) are 11b until the commit has completed. | |
5632 | * This will allow us to write 10b which indicates the | |
5633 | * signature is valid. We want to do this after the write | |
5634 | * has completed so that we don't mark the segment valid | |
5635 | * while the write is still in progress */ | |
2df7d59f JK |
5636 | if (i == E1000_ICH_NVM_SIG_WORD) |
5637 | high_byte = E1000_ICH_NVM_SIG_MASK | high_byte; | |
cd94dd0b AK |
5638 | |
5639 | error = e1000_verify_write_ich8_byte(hw, | |
2a88c173 | 5640 | (i << 1) + new_bank_offset + 1, high_byte); |
cd94dd0b | 5641 | if (error != E1000_SUCCESS) |
c3033b01 | 5642 | sector_write_failed = true; |
cd94dd0b | 5643 | |
2a88c173 JK |
5644 | } else { |
5645 | /* If the write failed then break from the loop and | |
5646 | * return an error */ | |
5647 | break; | |
cd94dd0b | 5648 | } |
2a88c173 | 5649 | } |
cd94dd0b | 5650 | |
2a88c173 JK |
5651 | /* Don't bother writing the segment valid bits if sector |
5652 | * programming failed. */ | |
c3033b01 | 5653 | if (!sector_write_failed) { |
2a88c173 JK |
5654 | /* Finally validate the new segment by setting bit 15:14 |
5655 | * to 10b in word 0x13 , this can be done without an | |
5656 | * erase as well since these bits are 11 to start with | |
5657 | * and we need to change bit 14 to 0b */ | |
5658 | e1000_read_ich8_byte(hw, | |
2df7d59f | 5659 | E1000_ICH_NVM_SIG_WORD * 2 + 1 + new_bank_offset, |
2a88c173 JK |
5660 | &high_byte); |
5661 | high_byte &= 0xBF; | |
5662 | error = e1000_verify_write_ich8_byte(hw, | |
2df7d59f | 5663 | E1000_ICH_NVM_SIG_WORD * 2 + 1 + new_bank_offset, high_byte); |
2a88c173 JK |
5664 | /* And invalidate the previously valid segment by setting |
5665 | * its signature word (0x13) high_byte to 0b. This can be | |
5666 | * done without an erase because flash erase sets all bits | |
5667 | * to 1's. We can write 1's to 0's without an erase */ | |
5668 | if (error == E1000_SUCCESS) { | |
cd94dd0b | 5669 | error = e1000_verify_write_ich8_byte(hw, |
2df7d59f | 5670 | E1000_ICH_NVM_SIG_WORD * 2 + 1 + old_bank_offset, 0); |
2a88c173 | 5671 | } |
cd94dd0b | 5672 | |
2a88c173 JK |
5673 | /* Clear the now not used entry in the cache */ |
5674 | for (i = 0; i < E1000_SHADOW_RAM_WORDS; i++) { | |
c3033b01 | 5675 | hw->eeprom_shadow_ram[i].modified = false; |
2a88c173 | 5676 | hw->eeprom_shadow_ram[i].eeprom_word = 0xFFFF; |
cd94dd0b | 5677 | } |
2a88c173 | 5678 | } |
cd94dd0b AK |
5679 | } |
5680 | ||
2d7edb92 MC |
5681 | return error; |
5682 | } | |
5683 | ||
1da177e4 LT |
5684 | /****************************************************************************** |
5685 | * Reads the adapter's MAC address from the EEPROM and inverts the LSB for the | |
5686 | * second function of dual function devices | |
5687 | * | |
5688 | * hw - Struct containing variables accessed by shared code | |
5689 | *****************************************************************************/ | |
406874a7 | 5690 | s32 |
1da177e4 LT |
5691 | e1000_read_mac_addr(struct e1000_hw * hw) |
5692 | { | |
406874a7 JP |
5693 | u16 offset; |
5694 | u16 eeprom_data, i; | |
1da177e4 LT |
5695 | |
5696 | DEBUGFUNC("e1000_read_mac_addr"); | |
5697 | ||
8fc897b0 | 5698 | for (i = 0; i < NODE_ADDRESS_SIZE; i += 2) { |
1da177e4 | 5699 | offset = i >> 1; |
8fc897b0 | 5700 | if (e1000_read_eeprom(hw, offset, 1, &eeprom_data) < 0) { |
1da177e4 LT |
5701 | DEBUGOUT("EEPROM Read Error\n"); |
5702 | return -E1000_ERR_EEPROM; | |
5703 | } | |
406874a7 JP |
5704 | hw->perm_mac_addr[i] = (u8) (eeprom_data & 0x00FF); |
5705 | hw->perm_mac_addr[i+1] = (u8) (eeprom_data >> 8); | |
1da177e4 | 5706 | } |
96838a40 | 5707 | |
868d5309 MC |
5708 | switch (hw->mac_type) { |
5709 | default: | |
5710 | break; | |
5711 | case e1000_82546: | |
5712 | case e1000_82546_rev_3: | |
5713 | case e1000_82571: | |
6418ecc6 | 5714 | case e1000_80003es2lan: |
8fc897b0 | 5715 | if (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1) |
1da177e4 | 5716 | hw->perm_mac_addr[5] ^= 0x01; |
868d5309 MC |
5717 | break; |
5718 | } | |
1da177e4 | 5719 | |
8fc897b0 | 5720 | for (i = 0; i < NODE_ADDRESS_SIZE; i++) |
1da177e4 LT |
5721 | hw->mac_addr[i] = hw->perm_mac_addr[i]; |
5722 | return E1000_SUCCESS; | |
5723 | } | |
5724 | ||
5725 | /****************************************************************************** | |
5726 | * Initializes receive address filters. | |
5727 | * | |
5728 | * hw - Struct containing variables accessed by shared code | |
5729 | * | |
5730 | * Places the MAC address in receive address register 0 and clears the rest | |
5731 | * of the receive addresss registers. Clears the multicast table. Assumes | |
5732 | * the receiver is in reset when the routine is called. | |
5733 | *****************************************************************************/ | |
3ad2cc67 | 5734 | static void |
1da177e4 LT |
5735 | e1000_init_rx_addrs(struct e1000_hw *hw) |
5736 | { | |
406874a7 JP |
5737 | u32 i; |
5738 | u32 rar_num; | |
1da177e4 LT |
5739 | |
5740 | DEBUGFUNC("e1000_init_rx_addrs"); | |
5741 | ||
5742 | /* Setup the receive address. */ | |
5743 | DEBUGOUT("Programming MAC Address into RAR[0]\n"); | |
5744 | ||
5745 | e1000_rar_set(hw, hw->mac_addr, 0); | |
5746 | ||
2d7edb92 | 5747 | rar_num = E1000_RAR_ENTRIES; |
868d5309 MC |
5748 | |
5749 | /* Reserve a spot for the Locally Administered Address to work around | |
5750 | * an 82571 issue in which a reset on one port will reload the MAC on | |
5751 | * the other port. */ | |
c3033b01 | 5752 | if ((hw->mac_type == e1000_82571) && (hw->laa_is_present)) |
868d5309 | 5753 | rar_num -= 1; |
cd94dd0b AK |
5754 | if (hw->mac_type == e1000_ich8lan) |
5755 | rar_num = E1000_RAR_ENTRIES_ICH8LAN; | |
5756 | ||
1da177e4 LT |
5757 | /* Zero out the other 15 receive addresses. */ |
5758 | DEBUGOUT("Clearing RAR[1-15]\n"); | |
8fc897b0 | 5759 | for (i = 1; i < rar_num; i++) { |
1da177e4 | 5760 | E1000_WRITE_REG_ARRAY(hw, RA, (i << 1), 0); |
4ca213a6 | 5761 | E1000_WRITE_FLUSH(hw); |
1da177e4 | 5762 | E1000_WRITE_REG_ARRAY(hw, RA, ((i << 1) + 1), 0); |
4ca213a6 | 5763 | E1000_WRITE_FLUSH(hw); |
1da177e4 LT |
5764 | } |
5765 | } | |
5766 | ||
1da177e4 LT |
5767 | /****************************************************************************** |
5768 | * Hashes an address to determine its location in the multicast table | |
5769 | * | |
5770 | * hw - Struct containing variables accessed by shared code | |
5771 | * mc_addr - the multicast address to hash | |
5772 | *****************************************************************************/ | |
406874a7 | 5773 | u32 |
1da177e4 | 5774 | e1000_hash_mc_addr(struct e1000_hw *hw, |
406874a7 | 5775 | u8 *mc_addr) |
1da177e4 | 5776 | { |
406874a7 | 5777 | u32 hash_value = 0; |
1da177e4 LT |
5778 | |
5779 | /* The portion of the address that is used for the hash table is | |
5780 | * determined by the mc_filter_type setting. | |
5781 | */ | |
5782 | switch (hw->mc_filter_type) { | |
5783 | /* [0] [1] [2] [3] [4] [5] | |
5784 | * 01 AA 00 12 34 56 | |
5785 | * LSB MSB | |
5786 | */ | |
5787 | case 0: | |
cd94dd0b AK |
5788 | if (hw->mac_type == e1000_ich8lan) { |
5789 | /* [47:38] i.e. 0x158 for above example address */ | |
406874a7 | 5790 | hash_value = ((mc_addr[4] >> 6) | (((u16) mc_addr[5]) << 2)); |
cd94dd0b AK |
5791 | } else { |
5792 | /* [47:36] i.e. 0x563 for above example address */ | |
406874a7 | 5793 | hash_value = ((mc_addr[4] >> 4) | (((u16) mc_addr[5]) << 4)); |
cd94dd0b | 5794 | } |
1da177e4 LT |
5795 | break; |
5796 | case 1: | |
cd94dd0b AK |
5797 | if (hw->mac_type == e1000_ich8lan) { |
5798 | /* [46:37] i.e. 0x2B1 for above example address */ | |
406874a7 | 5799 | hash_value = ((mc_addr[4] >> 5) | (((u16) mc_addr[5]) << 3)); |
cd94dd0b AK |
5800 | } else { |
5801 | /* [46:35] i.e. 0xAC6 for above example address */ | |
406874a7 | 5802 | hash_value = ((mc_addr[4] >> 3) | (((u16) mc_addr[5]) << 5)); |
cd94dd0b | 5803 | } |
1da177e4 LT |
5804 | break; |
5805 | case 2: | |
cd94dd0b AK |
5806 | if (hw->mac_type == e1000_ich8lan) { |
5807 | /*[45:36] i.e. 0x163 for above example address */ | |
406874a7 | 5808 | hash_value = ((mc_addr[4] >> 4) | (((u16) mc_addr[5]) << 4)); |
cd94dd0b AK |
5809 | } else { |
5810 | /* [45:34] i.e. 0x5D8 for above example address */ | |
406874a7 | 5811 | hash_value = ((mc_addr[4] >> 2) | (((u16) mc_addr[5]) << 6)); |
cd94dd0b | 5812 | } |
1da177e4 LT |
5813 | break; |
5814 | case 3: | |
cd94dd0b AK |
5815 | if (hw->mac_type == e1000_ich8lan) { |
5816 | /* [43:34] i.e. 0x18D for above example address */ | |
406874a7 | 5817 | hash_value = ((mc_addr[4] >> 2) | (((u16) mc_addr[5]) << 6)); |
cd94dd0b AK |
5818 | } else { |
5819 | /* [43:32] i.e. 0x634 for above example address */ | |
406874a7 | 5820 | hash_value = ((mc_addr[4]) | (((u16) mc_addr[5]) << 8)); |
cd94dd0b | 5821 | } |
1da177e4 LT |
5822 | break; |
5823 | } | |
5824 | ||
5825 | hash_value &= 0xFFF; | |
cd94dd0b AK |
5826 | if (hw->mac_type == e1000_ich8lan) |
5827 | hash_value &= 0x3FF; | |
2d7edb92 | 5828 | |
1da177e4 LT |
5829 | return hash_value; |
5830 | } | |
5831 | ||
5832 | /****************************************************************************** | |
5833 | * Sets the bit in the multicast table corresponding to the hash value. | |
5834 | * | |
5835 | * hw - Struct containing variables accessed by shared code | |
5836 | * hash_value - Multicast address hash value | |
5837 | *****************************************************************************/ | |
5838 | void | |
5839 | e1000_mta_set(struct e1000_hw *hw, | |
406874a7 | 5840 | u32 hash_value) |
1da177e4 | 5841 | { |
406874a7 JP |
5842 | u32 hash_bit, hash_reg; |
5843 | u32 mta; | |
5844 | u32 temp; | |
1da177e4 LT |
5845 | |
5846 | /* The MTA is a register array of 128 32-bit registers. | |
5847 | * It is treated like an array of 4096 bits. We want to set | |
5848 | * bit BitArray[hash_value]. So we figure out what register | |
5849 | * the bit is in, read it, OR in the new bit, then write | |
5850 | * back the new value. The register is determined by the | |
5851 | * upper 7 bits of the hash value and the bit within that | |
5852 | * register are determined by the lower 5 bits of the value. | |
5853 | */ | |
5854 | hash_reg = (hash_value >> 5) & 0x7F; | |
cd94dd0b AK |
5855 | if (hw->mac_type == e1000_ich8lan) |
5856 | hash_reg &= 0x1F; | |
90fb5135 | 5857 | |
1da177e4 LT |
5858 | hash_bit = hash_value & 0x1F; |
5859 | ||
5860 | mta = E1000_READ_REG_ARRAY(hw, MTA, hash_reg); | |
5861 | ||
5862 | mta |= (1 << hash_bit); | |
5863 | ||
5864 | /* If we are on an 82544 and we are trying to write an odd offset | |
5865 | * in the MTA, save off the previous entry before writing and | |
5866 | * restore the old value after writing. | |
5867 | */ | |
8fc897b0 | 5868 | if ((hw->mac_type == e1000_82544) && ((hash_reg & 0x1) == 1)) { |
1da177e4 LT |
5869 | temp = E1000_READ_REG_ARRAY(hw, MTA, (hash_reg - 1)); |
5870 | E1000_WRITE_REG_ARRAY(hw, MTA, hash_reg, mta); | |
4ca213a6 | 5871 | E1000_WRITE_FLUSH(hw); |
1da177e4 | 5872 | E1000_WRITE_REG_ARRAY(hw, MTA, (hash_reg - 1), temp); |
4ca213a6 | 5873 | E1000_WRITE_FLUSH(hw); |
1da177e4 LT |
5874 | } else { |
5875 | E1000_WRITE_REG_ARRAY(hw, MTA, hash_reg, mta); | |
4ca213a6 | 5876 | E1000_WRITE_FLUSH(hw); |
1da177e4 LT |
5877 | } |
5878 | } | |
5879 | ||
5880 | /****************************************************************************** | |
5881 | * Puts an ethernet address into a receive address register. | |
5882 | * | |
5883 | * hw - Struct containing variables accessed by shared code | |
5884 | * addr - Address to put into receive address register | |
5885 | * index - Receive address register to write | |
5886 | *****************************************************************************/ | |
5887 | void | |
5888 | e1000_rar_set(struct e1000_hw *hw, | |
406874a7 JP |
5889 | u8 *addr, |
5890 | u32 index) | |
1da177e4 | 5891 | { |
406874a7 | 5892 | u32 rar_low, rar_high; |
1da177e4 LT |
5893 | |
5894 | /* HW expects these in little endian so we reverse the byte order | |
5895 | * from network order (big endian) to little endian | |
5896 | */ | |
406874a7 JP |
5897 | rar_low = ((u32) addr[0] | |
5898 | ((u32) addr[1] << 8) | | |
5899 | ((u32) addr[2] << 16) | ((u32) addr[3] << 24)); | |
5900 | rar_high = ((u32) addr[4] | ((u32) addr[5] << 8)); | |
1da177e4 | 5901 | |
8df06e50 JK |
5902 | /* Disable Rx and flush all Rx frames before enabling RSS to avoid Rx |
5903 | * unit hang. | |
5904 | * | |
5905 | * Description: | |
5906 | * If there are any Rx frames queued up or otherwise present in the HW | |
5907 | * before RSS is enabled, and then we enable RSS, the HW Rx unit will | |
5908 | * hang. To work around this issue, we have to disable receives and | |
5909 | * flush out all Rx frames before we enable RSS. To do so, we modify we | |
5910 | * redirect all Rx traffic to manageability and then reset the HW. | |
5911 | * This flushes away Rx frames, and (since the redirections to | |
5912 | * manageability persists across resets) keeps new ones from coming in | |
5913 | * while we work. Then, we clear the Address Valid AV bit for all MAC | |
5914 | * addresses and undo the re-direction to manageability. | |
5915 | * Now, frames are coming in again, but the MAC won't accept them, so | |
5916 | * far so good. We now proceed to initialize RSS (if necessary) and | |
5917 | * configure the Rx unit. Last, we re-enable the AV bits and continue | |
5918 | * on our merry way. | |
5919 | */ | |
5920 | switch (hw->mac_type) { | |
5921 | case e1000_82571: | |
5922 | case e1000_82572: | |
6418ecc6 | 5923 | case e1000_80003es2lan: |
c3033b01 | 5924 | if (hw->leave_av_bit_off) |
8df06e50 JK |
5925 | break; |
5926 | default: | |
5927 | /* Indicate to hardware the Address is Valid. */ | |
5928 | rar_high |= E1000_RAH_AV; | |
5929 | break; | |
5930 | } | |
1da177e4 LT |
5931 | |
5932 | E1000_WRITE_REG_ARRAY(hw, RA, (index << 1), rar_low); | |
4ca213a6 | 5933 | E1000_WRITE_FLUSH(hw); |
1da177e4 | 5934 | E1000_WRITE_REG_ARRAY(hw, RA, ((index << 1) + 1), rar_high); |
4ca213a6 | 5935 | E1000_WRITE_FLUSH(hw); |
1da177e4 LT |
5936 | } |
5937 | ||
5938 | /****************************************************************************** | |
5939 | * Writes a value to the specified offset in the VLAN filter table. | |
5940 | * | |
5941 | * hw - Struct containing variables accessed by shared code | |
5942 | * offset - Offset in VLAN filer table to write | |
5943 | * value - Value to write into VLAN filter table | |
5944 | *****************************************************************************/ | |
5945 | void | |
5946 | e1000_write_vfta(struct e1000_hw *hw, | |
406874a7 JP |
5947 | u32 offset, |
5948 | u32 value) | |
1da177e4 | 5949 | { |
406874a7 | 5950 | u32 temp; |
1da177e4 | 5951 | |
cd94dd0b AK |
5952 | if (hw->mac_type == e1000_ich8lan) |
5953 | return; | |
5954 | ||
5955 | if ((hw->mac_type == e1000_82544) && ((offset & 0x1) == 1)) { | |
1da177e4 LT |
5956 | temp = E1000_READ_REG_ARRAY(hw, VFTA, (offset - 1)); |
5957 | E1000_WRITE_REG_ARRAY(hw, VFTA, offset, value); | |
4ca213a6 | 5958 | E1000_WRITE_FLUSH(hw); |
1da177e4 | 5959 | E1000_WRITE_REG_ARRAY(hw, VFTA, (offset - 1), temp); |
4ca213a6 | 5960 | E1000_WRITE_FLUSH(hw); |
1da177e4 LT |
5961 | } else { |
5962 | E1000_WRITE_REG_ARRAY(hw, VFTA, offset, value); | |
4ca213a6 | 5963 | E1000_WRITE_FLUSH(hw); |
1da177e4 LT |
5964 | } |
5965 | } | |
5966 | ||
5967 | /****************************************************************************** | |
5968 | * Clears the VLAN filer table | |
5969 | * | |
5970 | * hw - Struct containing variables accessed by shared code | |
5971 | *****************************************************************************/ | |
3ad2cc67 | 5972 | static void |
1da177e4 LT |
5973 | e1000_clear_vfta(struct e1000_hw *hw) |
5974 | { | |
406874a7 JP |
5975 | u32 offset; |
5976 | u32 vfta_value = 0; | |
5977 | u32 vfta_offset = 0; | |
5978 | u32 vfta_bit_in_reg = 0; | |
2d7edb92 | 5979 | |
cd94dd0b AK |
5980 | if (hw->mac_type == e1000_ich8lan) |
5981 | return; | |
5982 | ||
2d7edb92 MC |
5983 | if (hw->mac_type == e1000_82573) { |
5984 | if (hw->mng_cookie.vlan_id != 0) { | |
5985 | /* The VFTA is a 4096b bit-field, each identifying a single VLAN | |
5986 | * ID. The following operations determine which 32b entry | |
5987 | * (i.e. offset) into the array we want to set the VLAN ID | |
5988 | * (i.e. bit) of the manageability unit. */ | |
5989 | vfta_offset = (hw->mng_cookie.vlan_id >> | |
5990 | E1000_VFTA_ENTRY_SHIFT) & | |
5991 | E1000_VFTA_ENTRY_MASK; | |
5992 | vfta_bit_in_reg = 1 << (hw->mng_cookie.vlan_id & | |
5993 | E1000_VFTA_ENTRY_BIT_SHIFT_MASK); | |
5994 | } | |
5995 | } | |
5996 | for (offset = 0; offset < E1000_VLAN_FILTER_TBL_SIZE; offset++) { | |
5997 | /* If the offset we want to clear is the same offset of the | |
5998 | * manageability VLAN ID, then clear all bits except that of the | |
5999 | * manageability unit */ | |
6000 | vfta_value = (offset == vfta_offset) ? vfta_bit_in_reg : 0; | |
6001 | E1000_WRITE_REG_ARRAY(hw, VFTA, offset, vfta_value); | |
4ca213a6 | 6002 | E1000_WRITE_FLUSH(hw); |
2d7edb92 | 6003 | } |
1da177e4 LT |
6004 | } |
6005 | ||
406874a7 | 6006 | static s32 |
1da177e4 LT |
6007 | e1000_id_led_init(struct e1000_hw * hw) |
6008 | { | |
406874a7 JP |
6009 | u32 ledctl; |
6010 | const u32 ledctl_mask = 0x000000FF; | |
6011 | const u32 ledctl_on = E1000_LEDCTL_MODE_LED_ON; | |
6012 | const u32 ledctl_off = E1000_LEDCTL_MODE_LED_OFF; | |
6013 | u16 eeprom_data, i, temp; | |
6014 | const u16 led_mask = 0x0F; | |
1da177e4 LT |
6015 | |
6016 | DEBUGFUNC("e1000_id_led_init"); | |
6017 | ||
8fc897b0 | 6018 | if (hw->mac_type < e1000_82540) { |
1da177e4 LT |
6019 | /* Nothing to do */ |
6020 | return E1000_SUCCESS; | |
6021 | } | |
6022 | ||
6023 | ledctl = E1000_READ_REG(hw, LEDCTL); | |
6024 | hw->ledctl_default = ledctl; | |
6025 | hw->ledctl_mode1 = hw->ledctl_default; | |
6026 | hw->ledctl_mode2 = hw->ledctl_default; | |
6027 | ||
8fc897b0 | 6028 | if (e1000_read_eeprom(hw, EEPROM_ID_LED_SETTINGS, 1, &eeprom_data) < 0) { |
1da177e4 LT |
6029 | DEBUGOUT("EEPROM Read Error\n"); |
6030 | return -E1000_ERR_EEPROM; | |
6031 | } | |
cd94dd0b AK |
6032 | |
6033 | if ((hw->mac_type == e1000_82573) && | |
6034 | (eeprom_data == ID_LED_RESERVED_82573)) | |
6035 | eeprom_data = ID_LED_DEFAULT_82573; | |
6036 | else if ((eeprom_data == ID_LED_RESERVED_0000) || | |
6037 | (eeprom_data == ID_LED_RESERVED_FFFF)) { | |
6038 | if (hw->mac_type == e1000_ich8lan) | |
6039 | eeprom_data = ID_LED_DEFAULT_ICH8LAN; | |
6040 | else | |
6041 | eeprom_data = ID_LED_DEFAULT; | |
6042 | } | |
90fb5135 | 6043 | |
cd94dd0b | 6044 | for (i = 0; i < 4; i++) { |
1da177e4 | 6045 | temp = (eeprom_data >> (i << 2)) & led_mask; |
8fc897b0 | 6046 | switch (temp) { |
1da177e4 LT |
6047 | case ID_LED_ON1_DEF2: |
6048 | case ID_LED_ON1_ON2: | |
6049 | case ID_LED_ON1_OFF2: | |
6050 | hw->ledctl_mode1 &= ~(ledctl_mask << (i << 3)); | |
6051 | hw->ledctl_mode1 |= ledctl_on << (i << 3); | |
6052 | break; | |
6053 | case ID_LED_OFF1_DEF2: | |
6054 | case ID_LED_OFF1_ON2: | |
6055 | case ID_LED_OFF1_OFF2: | |
6056 | hw->ledctl_mode1 &= ~(ledctl_mask << (i << 3)); | |
6057 | hw->ledctl_mode1 |= ledctl_off << (i << 3); | |
6058 | break; | |
6059 | default: | |
6060 | /* Do nothing */ | |
6061 | break; | |
6062 | } | |
8fc897b0 | 6063 | switch (temp) { |
1da177e4 LT |
6064 | case ID_LED_DEF1_ON2: |
6065 | case ID_LED_ON1_ON2: | |
6066 | case ID_LED_OFF1_ON2: | |
6067 | hw->ledctl_mode2 &= ~(ledctl_mask << (i << 3)); | |
6068 | hw->ledctl_mode2 |= ledctl_on << (i << 3); | |
6069 | break; | |
6070 | case ID_LED_DEF1_OFF2: | |
6071 | case ID_LED_ON1_OFF2: | |
6072 | case ID_LED_OFF1_OFF2: | |
6073 | hw->ledctl_mode2 &= ~(ledctl_mask << (i << 3)); | |
6074 | hw->ledctl_mode2 |= ledctl_off << (i << 3); | |
6075 | break; | |
6076 | default: | |
6077 | /* Do nothing */ | |
6078 | break; | |
6079 | } | |
6080 | } | |
6081 | return E1000_SUCCESS; | |
6082 | } | |
6083 | ||
6084 | /****************************************************************************** | |
6085 | * Prepares SW controlable LED for use and saves the current state of the LED. | |
6086 | * | |
6087 | * hw - Struct containing variables accessed by shared code | |
6088 | *****************************************************************************/ | |
406874a7 | 6089 | s32 |
1da177e4 LT |
6090 | e1000_setup_led(struct e1000_hw *hw) |
6091 | { | |
406874a7 JP |
6092 | u32 ledctl; |
6093 | s32 ret_val = E1000_SUCCESS; | |
1da177e4 LT |
6094 | |
6095 | DEBUGFUNC("e1000_setup_led"); | |
6096 | ||
8fc897b0 | 6097 | switch (hw->mac_type) { |
1da177e4 LT |
6098 | case e1000_82542_rev2_0: |
6099 | case e1000_82542_rev2_1: | |
6100 | case e1000_82543: | |
6101 | case e1000_82544: | |
6102 | /* No setup necessary */ | |
6103 | break; | |
6104 | case e1000_82541: | |
6105 | case e1000_82547: | |
6106 | case e1000_82541_rev_2: | |
6107 | case e1000_82547_rev_2: | |
6108 | /* Turn off PHY Smart Power Down (if enabled) */ | |
6109 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_GMII_FIFO, | |
6110 | &hw->phy_spd_default); | |
8fc897b0 | 6111 | if (ret_val) |
1da177e4 LT |
6112 | return ret_val; |
6113 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, | |
406874a7 | 6114 | (u16)(hw->phy_spd_default & |
1da177e4 | 6115 | ~IGP01E1000_GMII_SPD)); |
8fc897b0 | 6116 | if (ret_val) |
1da177e4 LT |
6117 | return ret_val; |
6118 | /* Fall Through */ | |
6119 | default: | |
8fc897b0 | 6120 | if (hw->media_type == e1000_media_type_fiber) { |
1da177e4 LT |
6121 | ledctl = E1000_READ_REG(hw, LEDCTL); |
6122 | /* Save current LEDCTL settings */ | |
6123 | hw->ledctl_default = ledctl; | |
6124 | /* Turn off LED0 */ | |
6125 | ledctl &= ~(E1000_LEDCTL_LED0_IVRT | | |
6126 | E1000_LEDCTL_LED0_BLINK | | |
6127 | E1000_LEDCTL_LED0_MODE_MASK); | |
6128 | ledctl |= (E1000_LEDCTL_MODE_LED_OFF << | |
6129 | E1000_LEDCTL_LED0_MODE_SHIFT); | |
6130 | E1000_WRITE_REG(hw, LEDCTL, ledctl); | |
8fc897b0 | 6131 | } else if (hw->media_type == e1000_media_type_copper) |
1da177e4 LT |
6132 | E1000_WRITE_REG(hw, LEDCTL, hw->ledctl_mode1); |
6133 | break; | |
6134 | } | |
6135 | ||
6136 | return E1000_SUCCESS; | |
6137 | } | |
6138 | ||
8fc897b0 | 6139 | |
f1b3a853 AK |
6140 | /****************************************************************************** |
6141 | * Used on 82571 and later Si that has LED blink bits. | |
6142 | * Callers must use their own timer and should have already called | |
6143 | * e1000_id_led_init() | |
6144 | * Call e1000_cleanup led() to stop blinking | |
6145 | * | |
6146 | * hw - Struct containing variables accessed by shared code | |
6147 | *****************************************************************************/ | |
406874a7 | 6148 | s32 |
f1b3a853 AK |
6149 | e1000_blink_led_start(struct e1000_hw *hw) |
6150 | { | |
406874a7 JP |
6151 | s16 i; |
6152 | u32 ledctl_blink = 0; | |
f1b3a853 AK |
6153 | |
6154 | DEBUGFUNC("e1000_id_led_blink_on"); | |
6155 | ||
6156 | if (hw->mac_type < e1000_82571) { | |
6157 | /* Nothing to do */ | |
6158 | return E1000_SUCCESS; | |
6159 | } | |
6160 | if (hw->media_type == e1000_media_type_fiber) { | |
6161 | /* always blink LED0 for PCI-E fiber */ | |
6162 | ledctl_blink = E1000_LEDCTL_LED0_BLINK | | |
6163 | (E1000_LEDCTL_MODE_LED_ON << E1000_LEDCTL_LED0_MODE_SHIFT); | |
6164 | } else { | |
6165 | /* set the blink bit for each LED that's "on" (0x0E) in ledctl_mode2 */ | |
6166 | ledctl_blink = hw->ledctl_mode2; | |
6167 | for (i=0; i < 4; i++) | |
6168 | if (((hw->ledctl_mode2 >> (i * 8)) & 0xFF) == | |
6169 | E1000_LEDCTL_MODE_LED_ON) | |
6170 | ledctl_blink |= (E1000_LEDCTL_LED0_BLINK << (i * 8)); | |
6171 | } | |
6172 | ||
6173 | E1000_WRITE_REG(hw, LEDCTL, ledctl_blink); | |
6174 | ||
6175 | return E1000_SUCCESS; | |
6176 | } | |
6177 | ||
1da177e4 LT |
6178 | /****************************************************************************** |
6179 | * Restores the saved state of the SW controlable LED. | |
6180 | * | |
6181 | * hw - Struct containing variables accessed by shared code | |
6182 | *****************************************************************************/ | |
406874a7 | 6183 | s32 |
1da177e4 LT |
6184 | e1000_cleanup_led(struct e1000_hw *hw) |
6185 | { | |
406874a7 | 6186 | s32 ret_val = E1000_SUCCESS; |
1da177e4 LT |
6187 | |
6188 | DEBUGFUNC("e1000_cleanup_led"); | |
6189 | ||
8fc897b0 | 6190 | switch (hw->mac_type) { |
1da177e4 LT |
6191 | case e1000_82542_rev2_0: |
6192 | case e1000_82542_rev2_1: | |
6193 | case e1000_82543: | |
6194 | case e1000_82544: | |
6195 | /* No cleanup necessary */ | |
6196 | break; | |
6197 | case e1000_82541: | |
6198 | case e1000_82547: | |
6199 | case e1000_82541_rev_2: | |
6200 | case e1000_82547_rev_2: | |
6201 | /* Turn on PHY Smart Power Down (if previously enabled) */ | |
6202 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, | |
6203 | hw->phy_spd_default); | |
8fc897b0 | 6204 | if (ret_val) |
1da177e4 LT |
6205 | return ret_val; |
6206 | /* Fall Through */ | |
6207 | default: | |
cd94dd0b AK |
6208 | if (hw->phy_type == e1000_phy_ife) { |
6209 | e1000_write_phy_reg(hw, IFE_PHY_SPECIAL_CONTROL_LED, 0); | |
6210 | break; | |
6211 | } | |
1da177e4 LT |
6212 | /* Restore LEDCTL settings */ |
6213 | E1000_WRITE_REG(hw, LEDCTL, hw->ledctl_default); | |
6214 | break; | |
6215 | } | |
6216 | ||
6217 | return E1000_SUCCESS; | |
6218 | } | |
6219 | ||
6220 | /****************************************************************************** | |
6221 | * Turns on the software controllable LED | |
6222 | * | |
6223 | * hw - Struct containing variables accessed by shared code | |
6224 | *****************************************************************************/ | |
406874a7 | 6225 | s32 |
1da177e4 LT |
6226 | e1000_led_on(struct e1000_hw *hw) |
6227 | { | |
406874a7 | 6228 | u32 ctrl = E1000_READ_REG(hw, CTRL); |
1da177e4 LT |
6229 | |
6230 | DEBUGFUNC("e1000_led_on"); | |
6231 | ||
8fc897b0 | 6232 | switch (hw->mac_type) { |
1da177e4 LT |
6233 | case e1000_82542_rev2_0: |
6234 | case e1000_82542_rev2_1: | |
6235 | case e1000_82543: | |
6236 | /* Set SW Defineable Pin 0 to turn on the LED */ | |
6237 | ctrl |= E1000_CTRL_SWDPIN0; | |
6238 | ctrl |= E1000_CTRL_SWDPIO0; | |
6239 | break; | |
6240 | case e1000_82544: | |
8fc897b0 | 6241 | if (hw->media_type == e1000_media_type_fiber) { |
1da177e4 LT |
6242 | /* Set SW Defineable Pin 0 to turn on the LED */ |
6243 | ctrl |= E1000_CTRL_SWDPIN0; | |
6244 | ctrl |= E1000_CTRL_SWDPIO0; | |
6245 | } else { | |
6246 | /* Clear SW Defineable Pin 0 to turn on the LED */ | |
6247 | ctrl &= ~E1000_CTRL_SWDPIN0; | |
6248 | ctrl |= E1000_CTRL_SWDPIO0; | |
6249 | } | |
6250 | break; | |
6251 | default: | |
8fc897b0 | 6252 | if (hw->media_type == e1000_media_type_fiber) { |
1da177e4 LT |
6253 | /* Clear SW Defineable Pin 0 to turn on the LED */ |
6254 | ctrl &= ~E1000_CTRL_SWDPIN0; | |
6255 | ctrl |= E1000_CTRL_SWDPIO0; | |
cd94dd0b AK |
6256 | } else if (hw->phy_type == e1000_phy_ife) { |
6257 | e1000_write_phy_reg(hw, IFE_PHY_SPECIAL_CONTROL_LED, | |
6258 | (IFE_PSCL_PROBE_MODE | IFE_PSCL_PROBE_LEDS_ON)); | |
6259 | } else if (hw->media_type == e1000_media_type_copper) { | |
1da177e4 LT |
6260 | E1000_WRITE_REG(hw, LEDCTL, hw->ledctl_mode2); |
6261 | return E1000_SUCCESS; | |
6262 | } | |
6263 | break; | |
6264 | } | |
6265 | ||
6266 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
6267 | ||
6268 | return E1000_SUCCESS; | |
6269 | } | |
6270 | ||
6271 | /****************************************************************************** | |
6272 | * Turns off the software controllable LED | |
6273 | * | |
6274 | * hw - Struct containing variables accessed by shared code | |
6275 | *****************************************************************************/ | |
406874a7 | 6276 | s32 |
1da177e4 LT |
6277 | e1000_led_off(struct e1000_hw *hw) |
6278 | { | |
406874a7 | 6279 | u32 ctrl = E1000_READ_REG(hw, CTRL); |
1da177e4 LT |
6280 | |
6281 | DEBUGFUNC("e1000_led_off"); | |
6282 | ||
8fc897b0 | 6283 | switch (hw->mac_type) { |
1da177e4 LT |
6284 | case e1000_82542_rev2_0: |
6285 | case e1000_82542_rev2_1: | |
6286 | case e1000_82543: | |
6287 | /* Clear SW Defineable Pin 0 to turn off the LED */ | |
6288 | ctrl &= ~E1000_CTRL_SWDPIN0; | |
6289 | ctrl |= E1000_CTRL_SWDPIO0; | |
6290 | break; | |
6291 | case e1000_82544: | |
8fc897b0 | 6292 | if (hw->media_type == e1000_media_type_fiber) { |
1da177e4 LT |
6293 | /* Clear SW Defineable Pin 0 to turn off the LED */ |
6294 | ctrl &= ~E1000_CTRL_SWDPIN0; | |
6295 | ctrl |= E1000_CTRL_SWDPIO0; | |
6296 | } else { | |
6297 | /* Set SW Defineable Pin 0 to turn off the LED */ | |
6298 | ctrl |= E1000_CTRL_SWDPIN0; | |
6299 | ctrl |= E1000_CTRL_SWDPIO0; | |
6300 | } | |
6301 | break; | |
6302 | default: | |
8fc897b0 | 6303 | if (hw->media_type == e1000_media_type_fiber) { |
1da177e4 LT |
6304 | /* Set SW Defineable Pin 0 to turn off the LED */ |
6305 | ctrl |= E1000_CTRL_SWDPIN0; | |
6306 | ctrl |= E1000_CTRL_SWDPIO0; | |
cd94dd0b AK |
6307 | } else if (hw->phy_type == e1000_phy_ife) { |
6308 | e1000_write_phy_reg(hw, IFE_PHY_SPECIAL_CONTROL_LED, | |
6309 | (IFE_PSCL_PROBE_MODE | IFE_PSCL_PROBE_LEDS_OFF)); | |
6310 | } else if (hw->media_type == e1000_media_type_copper) { | |
1da177e4 LT |
6311 | E1000_WRITE_REG(hw, LEDCTL, hw->ledctl_mode1); |
6312 | return E1000_SUCCESS; | |
6313 | } | |
6314 | break; | |
6315 | } | |
6316 | ||
6317 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
6318 | ||
6319 | return E1000_SUCCESS; | |
6320 | } | |
6321 | ||
6322 | /****************************************************************************** | |
6323 | * Clears all hardware statistics counters. | |
6324 | * | |
6325 | * hw - Struct containing variables accessed by shared code | |
6326 | *****************************************************************************/ | |
35574764 | 6327 | static void |
1da177e4 LT |
6328 | e1000_clear_hw_cntrs(struct e1000_hw *hw) |
6329 | { | |
406874a7 | 6330 | volatile u32 temp; |
1da177e4 LT |
6331 | |
6332 | temp = E1000_READ_REG(hw, CRCERRS); | |
6333 | temp = E1000_READ_REG(hw, SYMERRS); | |
6334 | temp = E1000_READ_REG(hw, MPC); | |
6335 | temp = E1000_READ_REG(hw, SCC); | |
6336 | temp = E1000_READ_REG(hw, ECOL); | |
6337 | temp = E1000_READ_REG(hw, MCC); | |
6338 | temp = E1000_READ_REG(hw, LATECOL); | |
6339 | temp = E1000_READ_REG(hw, COLC); | |
6340 | temp = E1000_READ_REG(hw, DC); | |
6341 | temp = E1000_READ_REG(hw, SEC); | |
6342 | temp = E1000_READ_REG(hw, RLEC); | |
6343 | temp = E1000_READ_REG(hw, XONRXC); | |
6344 | temp = E1000_READ_REG(hw, XONTXC); | |
6345 | temp = E1000_READ_REG(hw, XOFFRXC); | |
6346 | temp = E1000_READ_REG(hw, XOFFTXC); | |
6347 | temp = E1000_READ_REG(hw, FCRUC); | |
cd94dd0b AK |
6348 | |
6349 | if (hw->mac_type != e1000_ich8lan) { | |
1da177e4 LT |
6350 | temp = E1000_READ_REG(hw, PRC64); |
6351 | temp = E1000_READ_REG(hw, PRC127); | |
6352 | temp = E1000_READ_REG(hw, PRC255); | |
6353 | temp = E1000_READ_REG(hw, PRC511); | |
6354 | temp = E1000_READ_REG(hw, PRC1023); | |
6355 | temp = E1000_READ_REG(hw, PRC1522); | |
cd94dd0b AK |
6356 | } |
6357 | ||
1da177e4 LT |
6358 | temp = E1000_READ_REG(hw, GPRC); |
6359 | temp = E1000_READ_REG(hw, BPRC); | |
6360 | temp = E1000_READ_REG(hw, MPRC); | |
6361 | temp = E1000_READ_REG(hw, GPTC); | |
6362 | temp = E1000_READ_REG(hw, GORCL); | |
6363 | temp = E1000_READ_REG(hw, GORCH); | |
6364 | temp = E1000_READ_REG(hw, GOTCL); | |
6365 | temp = E1000_READ_REG(hw, GOTCH); | |
6366 | temp = E1000_READ_REG(hw, RNBC); | |
6367 | temp = E1000_READ_REG(hw, RUC); | |
6368 | temp = E1000_READ_REG(hw, RFC); | |
6369 | temp = E1000_READ_REG(hw, ROC); | |
6370 | temp = E1000_READ_REG(hw, RJC); | |
6371 | temp = E1000_READ_REG(hw, TORL); | |
6372 | temp = E1000_READ_REG(hw, TORH); | |
6373 | temp = E1000_READ_REG(hw, TOTL); | |
6374 | temp = E1000_READ_REG(hw, TOTH); | |
6375 | temp = E1000_READ_REG(hw, TPR); | |
6376 | temp = E1000_READ_REG(hw, TPT); | |
cd94dd0b AK |
6377 | |
6378 | if (hw->mac_type != e1000_ich8lan) { | |
1da177e4 LT |
6379 | temp = E1000_READ_REG(hw, PTC64); |
6380 | temp = E1000_READ_REG(hw, PTC127); | |
6381 | temp = E1000_READ_REG(hw, PTC255); | |
6382 | temp = E1000_READ_REG(hw, PTC511); | |
6383 | temp = E1000_READ_REG(hw, PTC1023); | |
6384 | temp = E1000_READ_REG(hw, PTC1522); | |
cd94dd0b AK |
6385 | } |
6386 | ||
1da177e4 LT |
6387 | temp = E1000_READ_REG(hw, MPTC); |
6388 | temp = E1000_READ_REG(hw, BPTC); | |
6389 | ||
8fc897b0 | 6390 | if (hw->mac_type < e1000_82543) return; |
1da177e4 LT |
6391 | |
6392 | temp = E1000_READ_REG(hw, ALGNERRC); | |
6393 | temp = E1000_READ_REG(hw, RXERRC); | |
6394 | temp = E1000_READ_REG(hw, TNCRS); | |
6395 | temp = E1000_READ_REG(hw, CEXTERR); | |
6396 | temp = E1000_READ_REG(hw, TSCTC); | |
6397 | temp = E1000_READ_REG(hw, TSCTFC); | |
6398 | ||
8fc897b0 | 6399 | if (hw->mac_type <= e1000_82544) return; |
1da177e4 LT |
6400 | |
6401 | temp = E1000_READ_REG(hw, MGTPRC); | |
6402 | temp = E1000_READ_REG(hw, MGTPDC); | |
6403 | temp = E1000_READ_REG(hw, MGTPTC); | |
2d7edb92 | 6404 | |
8fc897b0 | 6405 | if (hw->mac_type <= e1000_82547_rev_2) return; |
2d7edb92 MC |
6406 | |
6407 | temp = E1000_READ_REG(hw, IAC); | |
6408 | temp = E1000_READ_REG(hw, ICRXOC); | |
cd94dd0b AK |
6409 | |
6410 | if (hw->mac_type == e1000_ich8lan) return; | |
6411 | ||
2d7edb92 MC |
6412 | temp = E1000_READ_REG(hw, ICRXPTC); |
6413 | temp = E1000_READ_REG(hw, ICRXATC); | |
6414 | temp = E1000_READ_REG(hw, ICTXPTC); | |
6415 | temp = E1000_READ_REG(hw, ICTXATC); | |
6416 | temp = E1000_READ_REG(hw, ICTXQEC); | |
6417 | temp = E1000_READ_REG(hw, ICTXQMTC); | |
6418 | temp = E1000_READ_REG(hw, ICRXDMTC); | |
1da177e4 LT |
6419 | } |
6420 | ||
6421 | /****************************************************************************** | |
6422 | * Resets Adaptive IFS to its default state. | |
6423 | * | |
6424 | * hw - Struct containing variables accessed by shared code | |
6425 | * | |
6426 | * Call this after e1000_init_hw. You may override the IFS defaults by setting | |
c3033b01 | 6427 | * hw->ifs_params_forced to true. However, you must initialize hw-> |
1da177e4 LT |
6428 | * current_ifs_val, ifs_min_val, ifs_max_val, ifs_step_size, and ifs_ratio |
6429 | * before calling this function. | |
6430 | *****************************************************************************/ | |
6431 | void | |
6432 | e1000_reset_adaptive(struct e1000_hw *hw) | |
6433 | { | |
6434 | DEBUGFUNC("e1000_reset_adaptive"); | |
6435 | ||
8fc897b0 AK |
6436 | if (hw->adaptive_ifs) { |
6437 | if (!hw->ifs_params_forced) { | |
1da177e4 LT |
6438 | hw->current_ifs_val = 0; |
6439 | hw->ifs_min_val = IFS_MIN; | |
6440 | hw->ifs_max_val = IFS_MAX; | |
6441 | hw->ifs_step_size = IFS_STEP; | |
6442 | hw->ifs_ratio = IFS_RATIO; | |
6443 | } | |
c3033b01 | 6444 | hw->in_ifs_mode = false; |
1da177e4 LT |
6445 | E1000_WRITE_REG(hw, AIT, 0); |
6446 | } else { | |
6447 | DEBUGOUT("Not in Adaptive IFS mode!\n"); | |
6448 | } | |
6449 | } | |
6450 | ||
6451 | /****************************************************************************** | |
6452 | * Called during the callback/watchdog routine to update IFS value based on | |
6453 | * the ratio of transmits to collisions. | |
6454 | * | |
6455 | * hw - Struct containing variables accessed by shared code | |
6456 | * tx_packets - Number of transmits since last callback | |
6457 | * total_collisions - Number of collisions since last callback | |
6458 | *****************************************************************************/ | |
6459 | void | |
6460 | e1000_update_adaptive(struct e1000_hw *hw) | |
6461 | { | |
6462 | DEBUGFUNC("e1000_update_adaptive"); | |
6463 | ||
8fc897b0 AK |
6464 | if (hw->adaptive_ifs) { |
6465 | if ((hw->collision_delta * hw->ifs_ratio) > hw->tx_packet_delta) { | |
6466 | if (hw->tx_packet_delta > MIN_NUM_XMITS) { | |
c3033b01 | 6467 | hw->in_ifs_mode = true; |
8fc897b0 AK |
6468 | if (hw->current_ifs_val < hw->ifs_max_val) { |
6469 | if (hw->current_ifs_val == 0) | |
1da177e4 LT |
6470 | hw->current_ifs_val = hw->ifs_min_val; |
6471 | else | |
6472 | hw->current_ifs_val += hw->ifs_step_size; | |
6473 | E1000_WRITE_REG(hw, AIT, hw->current_ifs_val); | |
6474 | } | |
6475 | } | |
6476 | } else { | |
8fc897b0 | 6477 | if (hw->in_ifs_mode && (hw->tx_packet_delta <= MIN_NUM_XMITS)) { |
1da177e4 | 6478 | hw->current_ifs_val = 0; |
c3033b01 | 6479 | hw->in_ifs_mode = false; |
1da177e4 LT |
6480 | E1000_WRITE_REG(hw, AIT, 0); |
6481 | } | |
6482 | } | |
6483 | } else { | |
6484 | DEBUGOUT("Not in Adaptive IFS mode!\n"); | |
6485 | } | |
6486 | } | |
6487 | ||
6488 | /****************************************************************************** | |
6489 | * Adjusts the statistic counters when a frame is accepted by TBI_ACCEPT | |
6490 | * | |
6491 | * hw - Struct containing variables accessed by shared code | |
6492 | * frame_len - The length of the frame in question | |
6493 | * mac_addr - The Ethernet destination address of the frame in question | |
6494 | *****************************************************************************/ | |
6495 | void | |
6496 | e1000_tbi_adjust_stats(struct e1000_hw *hw, | |
6497 | struct e1000_hw_stats *stats, | |
406874a7 JP |
6498 | u32 frame_len, |
6499 | u8 *mac_addr) | |
1da177e4 | 6500 | { |
406874a7 | 6501 | u64 carry_bit; |
1da177e4 LT |
6502 | |
6503 | /* First adjust the frame length. */ | |
6504 | frame_len--; | |
6505 | /* We need to adjust the statistics counters, since the hardware | |
6506 | * counters overcount this packet as a CRC error and undercount | |
6507 | * the packet as a good packet | |
6508 | */ | |
6509 | /* This packet should not be counted as a CRC error. */ | |
6510 | stats->crcerrs--; | |
6511 | /* This packet does count as a Good Packet Received. */ | |
6512 | stats->gprc++; | |
6513 | ||
6514 | /* Adjust the Good Octets received counters */ | |
6515 | carry_bit = 0x80000000 & stats->gorcl; | |
6516 | stats->gorcl += frame_len; | |
6517 | /* If the high bit of Gorcl (the low 32 bits of the Good Octets | |
6518 | * Received Count) was one before the addition, | |
6519 | * AND it is zero after, then we lost the carry out, | |
6520 | * need to add one to Gorch (Good Octets Received Count High). | |
6521 | * This could be simplified if all environments supported | |
6522 | * 64-bit integers. | |
6523 | */ | |
8fc897b0 | 6524 | if (carry_bit && ((stats->gorcl & 0x80000000) == 0)) |
1da177e4 LT |
6525 | stats->gorch++; |
6526 | /* Is this a broadcast or multicast? Check broadcast first, | |
6527 | * since the test for a multicast frame will test positive on | |
6528 | * a broadcast frame. | |
6529 | */ | |
406874a7 | 6530 | if ((mac_addr[0] == (u8) 0xff) && (mac_addr[1] == (u8) 0xff)) |
1da177e4 LT |
6531 | /* Broadcast packet */ |
6532 | stats->bprc++; | |
8fc897b0 | 6533 | else if (*mac_addr & 0x01) |
1da177e4 LT |
6534 | /* Multicast packet */ |
6535 | stats->mprc++; | |
6536 | ||
8fc897b0 | 6537 | if (frame_len == hw->max_frame_size) { |
1da177e4 LT |
6538 | /* In this case, the hardware has overcounted the number of |
6539 | * oversize frames. | |
6540 | */ | |
8fc897b0 | 6541 | if (stats->roc > 0) |
1da177e4 LT |
6542 | stats->roc--; |
6543 | } | |
6544 | ||
6545 | /* Adjust the bin counters when the extra byte put the frame in the | |
6546 | * wrong bin. Remember that the frame_len was adjusted above. | |
6547 | */ | |
8fc897b0 | 6548 | if (frame_len == 64) { |
1da177e4 LT |
6549 | stats->prc64++; |
6550 | stats->prc127--; | |
8fc897b0 | 6551 | } else if (frame_len == 127) { |
1da177e4 LT |
6552 | stats->prc127++; |
6553 | stats->prc255--; | |
8fc897b0 | 6554 | } else if (frame_len == 255) { |
1da177e4 LT |
6555 | stats->prc255++; |
6556 | stats->prc511--; | |
8fc897b0 | 6557 | } else if (frame_len == 511) { |
1da177e4 LT |
6558 | stats->prc511++; |
6559 | stats->prc1023--; | |
8fc897b0 | 6560 | } else if (frame_len == 1023) { |
1da177e4 LT |
6561 | stats->prc1023++; |
6562 | stats->prc1522--; | |
8fc897b0 | 6563 | } else if (frame_len == 1522) { |
1da177e4 LT |
6564 | stats->prc1522++; |
6565 | } | |
6566 | } | |
6567 | ||
6568 | /****************************************************************************** | |
6569 | * Gets the current PCI bus type, speed, and width of the hardware | |
6570 | * | |
6571 | * hw - Struct containing variables accessed by shared code | |
6572 | *****************************************************************************/ | |
6573 | void | |
6574 | e1000_get_bus_info(struct e1000_hw *hw) | |
6575 | { | |
406874a7 JP |
6576 | s32 ret_val; |
6577 | u16 pci_ex_link_status; | |
6578 | u32 status; | |
1da177e4 LT |
6579 | |
6580 | switch (hw->mac_type) { | |
6581 | case e1000_82542_rev2_0: | |
6582 | case e1000_82542_rev2_1: | |
c3813ae6 | 6583 | hw->bus_type = e1000_bus_type_pci; |
1da177e4 LT |
6584 | hw->bus_speed = e1000_bus_speed_unknown; |
6585 | hw->bus_width = e1000_bus_width_unknown; | |
6586 | break; | |
caeccb68 | 6587 | case e1000_82571: |
868d5309 | 6588 | case e1000_82572: |
2d7edb92 | 6589 | case e1000_82573: |
caeccb68 | 6590 | case e1000_80003es2lan: |
fd803241 JK |
6591 | hw->bus_type = e1000_bus_type_pci_express; |
6592 | hw->bus_speed = e1000_bus_speed_2500; | |
caeccb68 JK |
6593 | ret_val = e1000_read_pcie_cap_reg(hw, |
6594 | PCI_EX_LINK_STATUS, | |
6595 | &pci_ex_link_status); | |
6596 | if (ret_val) | |
6597 | hw->bus_width = e1000_bus_width_unknown; | |
6598 | else | |
6599 | hw->bus_width = (pci_ex_link_status & PCI_EX_LINK_WIDTH_MASK) >> | |
6600 | PCI_EX_LINK_WIDTH_SHIFT; | |
fd803241 | 6601 | break; |
cd94dd0b | 6602 | case e1000_ich8lan: |
2d7edb92 MC |
6603 | hw->bus_type = e1000_bus_type_pci_express; |
6604 | hw->bus_speed = e1000_bus_speed_2500; | |
caeccb68 | 6605 | hw->bus_width = e1000_bus_width_pciex_1; |
2d7edb92 | 6606 | break; |
1da177e4 LT |
6607 | default: |
6608 | status = E1000_READ_REG(hw, STATUS); | |
6609 | hw->bus_type = (status & E1000_STATUS_PCIX_MODE) ? | |
6610 | e1000_bus_type_pcix : e1000_bus_type_pci; | |
6611 | ||
8fc897b0 | 6612 | if (hw->device_id == E1000_DEV_ID_82546EB_QUAD_COPPER) { |
1da177e4 LT |
6613 | hw->bus_speed = (hw->bus_type == e1000_bus_type_pci) ? |
6614 | e1000_bus_speed_66 : e1000_bus_speed_120; | |
8fc897b0 | 6615 | } else if (hw->bus_type == e1000_bus_type_pci) { |
1da177e4 LT |
6616 | hw->bus_speed = (status & E1000_STATUS_PCI66) ? |
6617 | e1000_bus_speed_66 : e1000_bus_speed_33; | |
6618 | } else { | |
6619 | switch (status & E1000_STATUS_PCIX_SPEED) { | |
6620 | case E1000_STATUS_PCIX_SPEED_66: | |
6621 | hw->bus_speed = e1000_bus_speed_66; | |
6622 | break; | |
6623 | case E1000_STATUS_PCIX_SPEED_100: | |
6624 | hw->bus_speed = e1000_bus_speed_100; | |
6625 | break; | |
6626 | case E1000_STATUS_PCIX_SPEED_133: | |
6627 | hw->bus_speed = e1000_bus_speed_133; | |
6628 | break; | |
6629 | default: | |
6630 | hw->bus_speed = e1000_bus_speed_reserved; | |
6631 | break; | |
6632 | } | |
6633 | } | |
6634 | hw->bus_width = (status & E1000_STATUS_BUS64) ? | |
6635 | e1000_bus_width_64 : e1000_bus_width_32; | |
6636 | break; | |
6637 | } | |
6638 | } | |
1da177e4 LT |
6639 | |
6640 | /****************************************************************************** | |
6641 | * Writes a value to one of the devices registers using port I/O (as opposed to | |
6642 | * memory mapped I/O). Only 82544 and newer devices support port I/O. | |
6643 | * | |
6644 | * hw - Struct containing variables accessed by shared code | |
6645 | * offset - offset to write to | |
6646 | * value - value to write | |
6647 | *****************************************************************************/ | |
3ad2cc67 | 6648 | static void |
1da177e4 | 6649 | e1000_write_reg_io(struct e1000_hw *hw, |
406874a7 JP |
6650 | u32 offset, |
6651 | u32 value) | |
1da177e4 LT |
6652 | { |
6653 | unsigned long io_addr = hw->io_base; | |
6654 | unsigned long io_data = hw->io_base + 4; | |
6655 | ||
6656 | e1000_io_write(hw, io_addr, offset); | |
6657 | e1000_io_write(hw, io_data, value); | |
6658 | } | |
6659 | ||
1da177e4 LT |
6660 | /****************************************************************************** |
6661 | * Estimates the cable length. | |
6662 | * | |
6663 | * hw - Struct containing variables accessed by shared code | |
6664 | * min_length - The estimated minimum length | |
6665 | * max_length - The estimated maximum length | |
6666 | * | |
6667 | * returns: - E1000_ERR_XXX | |
6668 | * E1000_SUCCESS | |
6669 | * | |
6670 | * This function always returns a ranged length (minimum & maximum). | |
6671 | * So for M88 phy's, this function interprets the one value returned from the | |
6672 | * register to the minimum and maximum range. | |
6673 | * For IGP phy's, the function calculates the range by the AGC registers. | |
6674 | *****************************************************************************/ | |
406874a7 | 6675 | static s32 |
1da177e4 | 6676 | e1000_get_cable_length(struct e1000_hw *hw, |
406874a7 JP |
6677 | u16 *min_length, |
6678 | u16 *max_length) | |
1da177e4 | 6679 | { |
406874a7 JP |
6680 | s32 ret_val; |
6681 | u16 agc_value = 0; | |
6682 | u16 i, phy_data; | |
6683 | u16 cable_length; | |
1da177e4 LT |
6684 | |
6685 | DEBUGFUNC("e1000_get_cable_length"); | |
6686 | ||
6687 | *min_length = *max_length = 0; | |
6688 | ||
6689 | /* Use old method for Phy older than IGP */ | |
8fc897b0 | 6690 | if (hw->phy_type == e1000_phy_m88) { |
2d7edb92 | 6691 | |
1da177e4 LT |
6692 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, |
6693 | &phy_data); | |
8fc897b0 | 6694 | if (ret_val) |
1da177e4 LT |
6695 | return ret_val; |
6696 | cable_length = (phy_data & M88E1000_PSSR_CABLE_LENGTH) >> | |
6697 | M88E1000_PSSR_CABLE_LENGTH_SHIFT; | |
6698 | ||
6699 | /* Convert the enum value to ranged values */ | |
6700 | switch (cable_length) { | |
6701 | case e1000_cable_length_50: | |
6702 | *min_length = 0; | |
6703 | *max_length = e1000_igp_cable_length_50; | |
6704 | break; | |
6705 | case e1000_cable_length_50_80: | |
6706 | *min_length = e1000_igp_cable_length_50; | |
6707 | *max_length = e1000_igp_cable_length_80; | |
6708 | break; | |
6709 | case e1000_cable_length_80_110: | |
6710 | *min_length = e1000_igp_cable_length_80; | |
6711 | *max_length = e1000_igp_cable_length_110; | |
6712 | break; | |
6713 | case e1000_cable_length_110_140: | |
6714 | *min_length = e1000_igp_cable_length_110; | |
6715 | *max_length = e1000_igp_cable_length_140; | |
6716 | break; | |
6717 | case e1000_cable_length_140: | |
6718 | *min_length = e1000_igp_cable_length_140; | |
6719 | *max_length = e1000_igp_cable_length_170; | |
6720 | break; | |
6721 | default: | |
6722 | return -E1000_ERR_PHY; | |
6723 | break; | |
6724 | } | |
6418ecc6 JK |
6725 | } else if (hw->phy_type == e1000_phy_gg82563) { |
6726 | ret_val = e1000_read_phy_reg(hw, GG82563_PHY_DSP_DISTANCE, | |
6727 | &phy_data); | |
6728 | if (ret_val) | |
6729 | return ret_val; | |
6730 | cable_length = phy_data & GG82563_DSPD_CABLE_LENGTH; | |
6731 | ||
6732 | switch (cable_length) { | |
6733 | case e1000_gg_cable_length_60: | |
6734 | *min_length = 0; | |
6735 | *max_length = e1000_igp_cable_length_60; | |
6736 | break; | |
6737 | case e1000_gg_cable_length_60_115: | |
6738 | *min_length = e1000_igp_cable_length_60; | |
6739 | *max_length = e1000_igp_cable_length_115; | |
6740 | break; | |
6741 | case e1000_gg_cable_length_115_150: | |
6742 | *min_length = e1000_igp_cable_length_115; | |
6743 | *max_length = e1000_igp_cable_length_150; | |
6744 | break; | |
6745 | case e1000_gg_cable_length_150: | |
6746 | *min_length = e1000_igp_cable_length_150; | |
6747 | *max_length = e1000_igp_cable_length_180; | |
6748 | break; | |
6749 | default: | |
6750 | return -E1000_ERR_PHY; | |
6751 | break; | |
6752 | } | |
8fc897b0 | 6753 | } else if (hw->phy_type == e1000_phy_igp) { /* For IGP PHY */ |
406874a7 JP |
6754 | u16 cur_agc_value; |
6755 | u16 min_agc_value = IGP01E1000_AGC_LENGTH_TABLE_SIZE; | |
6756 | u16 agc_reg_array[IGP01E1000_PHY_CHANNEL_NUM] = | |
1da177e4 LT |
6757 | {IGP01E1000_PHY_AGC_A, |
6758 | IGP01E1000_PHY_AGC_B, | |
6759 | IGP01E1000_PHY_AGC_C, | |
6760 | IGP01E1000_PHY_AGC_D}; | |
6761 | /* Read the AGC registers for all channels */ | |
8fc897b0 | 6762 | for (i = 0; i < IGP01E1000_PHY_CHANNEL_NUM; i++) { |
1da177e4 LT |
6763 | |
6764 | ret_val = e1000_read_phy_reg(hw, agc_reg_array[i], &phy_data); | |
8fc897b0 | 6765 | if (ret_val) |
1da177e4 LT |
6766 | return ret_val; |
6767 | ||
cd94dd0b | 6768 | cur_agc_value = phy_data >> IGP01E1000_AGC_LENGTH_SHIFT; |
1da177e4 | 6769 | |
cd94dd0b AK |
6770 | /* Value bound check. */ |
6771 | if ((cur_agc_value >= IGP01E1000_AGC_LENGTH_TABLE_SIZE - 1) || | |
6772 | (cur_agc_value == 0)) | |
1da177e4 LT |
6773 | return -E1000_ERR_PHY; |
6774 | ||
cd94dd0b | 6775 | agc_value += cur_agc_value; |
1da177e4 LT |
6776 | |
6777 | /* Update minimal AGC value. */ | |
cd94dd0b AK |
6778 | if (min_agc_value > cur_agc_value) |
6779 | min_agc_value = cur_agc_value; | |
1da177e4 LT |
6780 | } |
6781 | ||
6782 | /* Remove the minimal AGC result for length < 50m */ | |
cd94dd0b AK |
6783 | if (agc_value < IGP01E1000_PHY_CHANNEL_NUM * e1000_igp_cable_length_50) { |
6784 | agc_value -= min_agc_value; | |
1da177e4 LT |
6785 | |
6786 | /* Get the average length of the remaining 3 channels */ | |
6787 | agc_value /= (IGP01E1000_PHY_CHANNEL_NUM - 1); | |
6788 | } else { | |
6789 | /* Get the average length of all the 4 channels. */ | |
6790 | agc_value /= IGP01E1000_PHY_CHANNEL_NUM; | |
6791 | } | |
6792 | ||
6793 | /* Set the range of the calculated length. */ | |
6794 | *min_length = ((e1000_igp_cable_length_table[agc_value] - | |
6795 | IGP01E1000_AGC_RANGE) > 0) ? | |
6796 | (e1000_igp_cable_length_table[agc_value] - | |
6797 | IGP01E1000_AGC_RANGE) : 0; | |
6798 | *max_length = e1000_igp_cable_length_table[agc_value] + | |
6799 | IGP01E1000_AGC_RANGE; | |
cd94dd0b AK |
6800 | } else if (hw->phy_type == e1000_phy_igp_2 || |
6801 | hw->phy_type == e1000_phy_igp_3) { | |
406874a7 JP |
6802 | u16 cur_agc_index, max_agc_index = 0; |
6803 | u16 min_agc_index = IGP02E1000_AGC_LENGTH_TABLE_SIZE - 1; | |
6804 | u16 agc_reg_array[IGP02E1000_PHY_CHANNEL_NUM] = | |
868d5309 MC |
6805 | {IGP02E1000_PHY_AGC_A, |
6806 | IGP02E1000_PHY_AGC_B, | |
6807 | IGP02E1000_PHY_AGC_C, | |
6808 | IGP02E1000_PHY_AGC_D}; | |
6809 | /* Read the AGC registers for all channels */ | |
6810 | for (i = 0; i < IGP02E1000_PHY_CHANNEL_NUM; i++) { | |
6811 | ret_val = e1000_read_phy_reg(hw, agc_reg_array[i], &phy_data); | |
6812 | if (ret_val) | |
6813 | return ret_val; | |
6814 | ||
8fc897b0 | 6815 | /* Getting bits 15:9, which represent the combination of course and |
868d5309 MC |
6816 | * fine gain values. The result is a number that can be put into |
6817 | * the lookup table to obtain the approximate cable length. */ | |
cd94dd0b AK |
6818 | cur_agc_index = (phy_data >> IGP02E1000_AGC_LENGTH_SHIFT) & |
6819 | IGP02E1000_AGC_LENGTH_MASK; | |
868d5309 | 6820 | |
cd94dd0b AK |
6821 | /* Array index bound check. */ |
6822 | if ((cur_agc_index >= IGP02E1000_AGC_LENGTH_TABLE_SIZE) || | |
6823 | (cur_agc_index == 0)) | |
6824 | return -E1000_ERR_PHY; | |
868d5309 | 6825 | |
cd94dd0b AK |
6826 | /* Remove min & max AGC values from calculation. */ |
6827 | if (e1000_igp_2_cable_length_table[min_agc_index] > | |
6828 | e1000_igp_2_cable_length_table[cur_agc_index]) | |
6829 | min_agc_index = cur_agc_index; | |
6830 | if (e1000_igp_2_cable_length_table[max_agc_index] < | |
6831 | e1000_igp_2_cable_length_table[cur_agc_index]) | |
6832 | max_agc_index = cur_agc_index; | |
6833 | ||
6834 | agc_value += e1000_igp_2_cable_length_table[cur_agc_index]; | |
868d5309 MC |
6835 | } |
6836 | ||
cd94dd0b AK |
6837 | agc_value -= (e1000_igp_2_cable_length_table[min_agc_index] + |
6838 | e1000_igp_2_cable_length_table[max_agc_index]); | |
868d5309 MC |
6839 | agc_value /= (IGP02E1000_PHY_CHANNEL_NUM - 2); |
6840 | ||
6841 | /* Calculate cable length with the error range of +/- 10 meters. */ | |
6842 | *min_length = ((agc_value - IGP02E1000_AGC_RANGE) > 0) ? | |
6843 | (agc_value - IGP02E1000_AGC_RANGE) : 0; | |
6844 | *max_length = agc_value + IGP02E1000_AGC_RANGE; | |
1da177e4 LT |
6845 | } |
6846 | ||
6847 | return E1000_SUCCESS; | |
6848 | } | |
6849 | ||
6850 | /****************************************************************************** | |
6851 | * Check the cable polarity | |
6852 | * | |
6853 | * hw - Struct containing variables accessed by shared code | |
6854 | * polarity - output parameter : 0 - Polarity is not reversed | |
6855 | * 1 - Polarity is reversed. | |
6856 | * | |
6857 | * returns: - E1000_ERR_XXX | |
6858 | * E1000_SUCCESS | |
6859 | * | |
6860 | * For phy's older then IGP, this function simply reads the polarity bit in the | |
6861 | * Phy Status register. For IGP phy's, this bit is valid only if link speed is | |
6862 | * 10 Mbps. If the link speed is 100 Mbps there is no polarity so this bit will | |
6863 | * return 0. If the link speed is 1000 Mbps the polarity status is in the | |
6864 | * IGP01E1000_PHY_PCS_INIT_REG. | |
6865 | *****************************************************************************/ | |
406874a7 | 6866 | static s32 |
1da177e4 | 6867 | e1000_check_polarity(struct e1000_hw *hw, |
70c6f30a | 6868 | e1000_rev_polarity *polarity) |
1da177e4 | 6869 | { |
406874a7 JP |
6870 | s32 ret_val; |
6871 | u16 phy_data; | |
1da177e4 LT |
6872 | |
6873 | DEBUGFUNC("e1000_check_polarity"); | |
6874 | ||
6418ecc6 JK |
6875 | if ((hw->phy_type == e1000_phy_m88) || |
6876 | (hw->phy_type == e1000_phy_gg82563)) { | |
1da177e4 LT |
6877 | /* return the Polarity bit in the Status register. */ |
6878 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, | |
6879 | &phy_data); | |
8fc897b0 | 6880 | if (ret_val) |
1da177e4 | 6881 | return ret_val; |
70c6f30a JK |
6882 | *polarity = ((phy_data & M88E1000_PSSR_REV_POLARITY) >> |
6883 | M88E1000_PSSR_REV_POLARITY_SHIFT) ? | |
6884 | e1000_rev_polarity_reversed : e1000_rev_polarity_normal; | |
6885 | ||
cd94dd0b AK |
6886 | } else if (hw->phy_type == e1000_phy_igp || |
6887 | hw->phy_type == e1000_phy_igp_3 || | |
2d7edb92 | 6888 | hw->phy_type == e1000_phy_igp_2) { |
1da177e4 LT |
6889 | /* Read the Status register to check the speed */ |
6890 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_STATUS, | |
6891 | &phy_data); | |
8fc897b0 | 6892 | if (ret_val) |
1da177e4 LT |
6893 | return ret_val; |
6894 | ||
6895 | /* If speed is 1000 Mbps, must read the IGP01E1000_PHY_PCS_INIT_REG to | |
6896 | * find the polarity status */ | |
8fc897b0 | 6897 | if ((phy_data & IGP01E1000_PSSR_SPEED_MASK) == |
1da177e4 LT |
6898 | IGP01E1000_PSSR_SPEED_1000MBPS) { |
6899 | ||
6900 | /* Read the GIG initialization PCS register (0x00B4) */ | |
6901 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PCS_INIT_REG, | |
6902 | &phy_data); | |
8fc897b0 | 6903 | if (ret_val) |
1da177e4 LT |
6904 | return ret_val; |
6905 | ||
6906 | /* Check the polarity bits */ | |
70c6f30a JK |
6907 | *polarity = (phy_data & IGP01E1000_PHY_POLARITY_MASK) ? |
6908 | e1000_rev_polarity_reversed : e1000_rev_polarity_normal; | |
1da177e4 LT |
6909 | } else { |
6910 | /* For 10 Mbps, read the polarity bit in the status register. (for | |
6911 | * 100 Mbps this bit is always 0) */ | |
70c6f30a JK |
6912 | *polarity = (phy_data & IGP01E1000_PSSR_POLARITY_REVERSED) ? |
6913 | e1000_rev_polarity_reversed : e1000_rev_polarity_normal; | |
1da177e4 | 6914 | } |
cd94dd0b AK |
6915 | } else if (hw->phy_type == e1000_phy_ife) { |
6916 | ret_val = e1000_read_phy_reg(hw, IFE_PHY_EXTENDED_STATUS_CONTROL, | |
6917 | &phy_data); | |
6918 | if (ret_val) | |
6919 | return ret_val; | |
70c6f30a JK |
6920 | *polarity = ((phy_data & IFE_PESC_POLARITY_REVERSED) >> |
6921 | IFE_PESC_POLARITY_REVERSED_SHIFT) ? | |
6922 | e1000_rev_polarity_reversed : e1000_rev_polarity_normal; | |
1da177e4 LT |
6923 | } |
6924 | return E1000_SUCCESS; | |
6925 | } | |
6926 | ||
6927 | /****************************************************************************** | |
6928 | * Check if Downshift occured | |
6929 | * | |
6930 | * hw - Struct containing variables accessed by shared code | |
6931 | * downshift - output parameter : 0 - No Downshift ocured. | |
6932 | * 1 - Downshift ocured. | |
6933 | * | |
6934 | * returns: - E1000_ERR_XXX | |
76c224bc | 6935 | * E1000_SUCCESS |
1da177e4 LT |
6936 | * |
6937 | * For phy's older then IGP, this function reads the Downshift bit in the Phy | |
6938 | * Specific Status register. For IGP phy's, it reads the Downgrade bit in the | |
6939 | * Link Health register. In IGP this bit is latched high, so the driver must | |
6940 | * read it immediately after link is established. | |
6941 | *****************************************************************************/ | |
406874a7 | 6942 | static s32 |
1da177e4 LT |
6943 | e1000_check_downshift(struct e1000_hw *hw) |
6944 | { | |
406874a7 JP |
6945 | s32 ret_val; |
6946 | u16 phy_data; | |
1da177e4 LT |
6947 | |
6948 | DEBUGFUNC("e1000_check_downshift"); | |
6949 | ||
cd94dd0b AK |
6950 | if (hw->phy_type == e1000_phy_igp || |
6951 | hw->phy_type == e1000_phy_igp_3 || | |
2d7edb92 | 6952 | hw->phy_type == e1000_phy_igp_2) { |
1da177e4 LT |
6953 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_LINK_HEALTH, |
6954 | &phy_data); | |
8fc897b0 | 6955 | if (ret_val) |
1da177e4 LT |
6956 | return ret_val; |
6957 | ||
6958 | hw->speed_downgraded = (phy_data & IGP01E1000_PLHR_SS_DOWNGRADE) ? 1 : 0; | |
6418ecc6 JK |
6959 | } else if ((hw->phy_type == e1000_phy_m88) || |
6960 | (hw->phy_type == e1000_phy_gg82563)) { | |
1da177e4 LT |
6961 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_STATUS, |
6962 | &phy_data); | |
8fc897b0 | 6963 | if (ret_val) |
1da177e4 LT |
6964 | return ret_val; |
6965 | ||
6966 | hw->speed_downgraded = (phy_data & M88E1000_PSSR_DOWNSHIFT) >> | |
6967 | M88E1000_PSSR_DOWNSHIFT_SHIFT; | |
cd94dd0b AK |
6968 | } else if (hw->phy_type == e1000_phy_ife) { |
6969 | /* e1000_phy_ife supports 10/100 speed only */ | |
c3033b01 | 6970 | hw->speed_downgraded = false; |
1da177e4 | 6971 | } |
2d7edb92 | 6972 | |
1da177e4 LT |
6973 | return E1000_SUCCESS; |
6974 | } | |
6975 | ||
6976 | /***************************************************************************** | |
6977 | * | |
6978 | * 82541_rev_2 & 82547_rev_2 have the capability to configure the DSP when a | |
6979 | * gigabit link is achieved to improve link quality. | |
6980 | * | |
6981 | * hw: Struct containing variables accessed by shared code | |
6982 | * | |
6983 | * returns: - E1000_ERR_PHY if fail to read/write the PHY | |
6984 | * E1000_SUCCESS at any other case. | |
6985 | * | |
6986 | ****************************************************************************/ | |
6987 | ||
406874a7 | 6988 | static s32 |
1da177e4 | 6989 | e1000_config_dsp_after_link_change(struct e1000_hw *hw, |
c3033b01 | 6990 | bool link_up) |
1da177e4 | 6991 | { |
406874a7 JP |
6992 | s32 ret_val; |
6993 | u16 phy_data, phy_saved_data, speed, duplex, i; | |
6994 | u16 dsp_reg_array[IGP01E1000_PHY_CHANNEL_NUM] = | |
1da177e4 LT |
6995 | {IGP01E1000_PHY_AGC_PARAM_A, |
6996 | IGP01E1000_PHY_AGC_PARAM_B, | |
6997 | IGP01E1000_PHY_AGC_PARAM_C, | |
6998 | IGP01E1000_PHY_AGC_PARAM_D}; | |
406874a7 | 6999 | u16 min_length, max_length; |
1da177e4 LT |
7000 | |
7001 | DEBUGFUNC("e1000_config_dsp_after_link_change"); | |
7002 | ||
8fc897b0 | 7003 | if (hw->phy_type != e1000_phy_igp) |
1da177e4 LT |
7004 | return E1000_SUCCESS; |
7005 | ||
8fc897b0 | 7006 | if (link_up) { |
1da177e4 | 7007 | ret_val = e1000_get_speed_and_duplex(hw, &speed, &duplex); |
8fc897b0 | 7008 | if (ret_val) { |
1da177e4 LT |
7009 | DEBUGOUT("Error getting link speed and duplex\n"); |
7010 | return ret_val; | |
7011 | } | |
7012 | ||
8fc897b0 | 7013 | if (speed == SPEED_1000) { |
1da177e4 | 7014 | |
cd94dd0b AK |
7015 | ret_val = e1000_get_cable_length(hw, &min_length, &max_length); |
7016 | if (ret_val) | |
7017 | return ret_val; | |
1da177e4 | 7018 | |
8fc897b0 | 7019 | if ((hw->dsp_config_state == e1000_dsp_config_enabled) && |
1da177e4 LT |
7020 | min_length >= e1000_igp_cable_length_50) { |
7021 | ||
8fc897b0 | 7022 | for (i = 0; i < IGP01E1000_PHY_CHANNEL_NUM; i++) { |
1da177e4 LT |
7023 | ret_val = e1000_read_phy_reg(hw, dsp_reg_array[i], |
7024 | &phy_data); | |
8fc897b0 | 7025 | if (ret_val) |
1da177e4 LT |
7026 | return ret_val; |
7027 | ||
7028 | phy_data &= ~IGP01E1000_PHY_EDAC_MU_INDEX; | |
7029 | ||
7030 | ret_val = e1000_write_phy_reg(hw, dsp_reg_array[i], | |
7031 | phy_data); | |
8fc897b0 | 7032 | if (ret_val) |
1da177e4 LT |
7033 | return ret_val; |
7034 | } | |
7035 | hw->dsp_config_state = e1000_dsp_config_activated; | |
7036 | } | |
7037 | ||
8fc897b0 | 7038 | if ((hw->ffe_config_state == e1000_ffe_config_enabled) && |
1da177e4 LT |
7039 | (min_length < e1000_igp_cable_length_50)) { |
7040 | ||
406874a7 JP |
7041 | u16 ffe_idle_err_timeout = FFE_IDLE_ERR_COUNT_TIMEOUT_20; |
7042 | u32 idle_errs = 0; | |
1da177e4 LT |
7043 | |
7044 | /* clear previous idle error counts */ | |
7045 | ret_val = e1000_read_phy_reg(hw, PHY_1000T_STATUS, | |
7046 | &phy_data); | |
8fc897b0 | 7047 | if (ret_val) |
1da177e4 LT |
7048 | return ret_val; |
7049 | ||
8fc897b0 | 7050 | for (i = 0; i < ffe_idle_err_timeout; i++) { |
1da177e4 LT |
7051 | udelay(1000); |
7052 | ret_val = e1000_read_phy_reg(hw, PHY_1000T_STATUS, | |
7053 | &phy_data); | |
8fc897b0 | 7054 | if (ret_val) |
1da177e4 LT |
7055 | return ret_val; |
7056 | ||
7057 | idle_errs += (phy_data & SR_1000T_IDLE_ERROR_CNT); | |
8fc897b0 | 7058 | if (idle_errs > SR_1000T_PHY_EXCESSIVE_IDLE_ERR_COUNT) { |
1da177e4 LT |
7059 | hw->ffe_config_state = e1000_ffe_config_active; |
7060 | ||
7061 | ret_val = e1000_write_phy_reg(hw, | |
7062 | IGP01E1000_PHY_DSP_FFE, | |
7063 | IGP01E1000_PHY_DSP_FFE_CM_CP); | |
8fc897b0 | 7064 | if (ret_val) |
1da177e4 LT |
7065 | return ret_val; |
7066 | break; | |
7067 | } | |
7068 | ||
8fc897b0 | 7069 | if (idle_errs) |
1da177e4 LT |
7070 | ffe_idle_err_timeout = FFE_IDLE_ERR_COUNT_TIMEOUT_100; |
7071 | } | |
7072 | } | |
7073 | } | |
7074 | } else { | |
8fc897b0 | 7075 | if (hw->dsp_config_state == e1000_dsp_config_activated) { |
1da177e4 LT |
7076 | /* Save off the current value of register 0x2F5B to be restored at |
7077 | * the end of the routines. */ | |
7078 | ret_val = e1000_read_phy_reg(hw, 0x2F5B, &phy_saved_data); | |
7079 | ||
8fc897b0 | 7080 | if (ret_val) |
1da177e4 LT |
7081 | return ret_val; |
7082 | ||
7083 | /* Disable the PHY transmitter */ | |
7084 | ret_val = e1000_write_phy_reg(hw, 0x2F5B, 0x0003); | |
7085 | ||
8fc897b0 | 7086 | if (ret_val) |
1da177e4 LT |
7087 | return ret_val; |
7088 | ||
f8ec4733 | 7089 | mdelay(20); |
1da177e4 LT |
7090 | |
7091 | ret_val = e1000_write_phy_reg(hw, 0x0000, | |
7092 | IGP01E1000_IEEE_FORCE_GIGA); | |
8fc897b0 | 7093 | if (ret_val) |
1da177e4 | 7094 | return ret_val; |
8fc897b0 | 7095 | for (i = 0; i < IGP01E1000_PHY_CHANNEL_NUM; i++) { |
1da177e4 | 7096 | ret_val = e1000_read_phy_reg(hw, dsp_reg_array[i], &phy_data); |
8fc897b0 | 7097 | if (ret_val) |
1da177e4 LT |
7098 | return ret_val; |
7099 | ||
7100 | phy_data &= ~IGP01E1000_PHY_EDAC_MU_INDEX; | |
7101 | phy_data |= IGP01E1000_PHY_EDAC_SIGN_EXT_9_BITS; | |
7102 | ||
7103 | ret_val = e1000_write_phy_reg(hw,dsp_reg_array[i], phy_data); | |
8fc897b0 | 7104 | if (ret_val) |
1da177e4 LT |
7105 | return ret_val; |
7106 | } | |
7107 | ||
7108 | ret_val = e1000_write_phy_reg(hw, 0x0000, | |
7109 | IGP01E1000_IEEE_RESTART_AUTONEG); | |
8fc897b0 | 7110 | if (ret_val) |
1da177e4 LT |
7111 | return ret_val; |
7112 | ||
f8ec4733 | 7113 | mdelay(20); |
1da177e4 LT |
7114 | |
7115 | /* Now enable the transmitter */ | |
7116 | ret_val = e1000_write_phy_reg(hw, 0x2F5B, phy_saved_data); | |
7117 | ||
8fc897b0 | 7118 | if (ret_val) |
1da177e4 LT |
7119 | return ret_val; |
7120 | ||
7121 | hw->dsp_config_state = e1000_dsp_config_enabled; | |
7122 | } | |
7123 | ||
8fc897b0 | 7124 | if (hw->ffe_config_state == e1000_ffe_config_active) { |
1da177e4 LT |
7125 | /* Save off the current value of register 0x2F5B to be restored at |
7126 | * the end of the routines. */ | |
7127 | ret_val = e1000_read_phy_reg(hw, 0x2F5B, &phy_saved_data); | |
7128 | ||
8fc897b0 | 7129 | if (ret_val) |
1da177e4 LT |
7130 | return ret_val; |
7131 | ||
7132 | /* Disable the PHY transmitter */ | |
7133 | ret_val = e1000_write_phy_reg(hw, 0x2F5B, 0x0003); | |
7134 | ||
8fc897b0 | 7135 | if (ret_val) |
1da177e4 LT |
7136 | return ret_val; |
7137 | ||
f8ec4733 | 7138 | mdelay(20); |
1da177e4 LT |
7139 | |
7140 | ret_val = e1000_write_phy_reg(hw, 0x0000, | |
7141 | IGP01E1000_IEEE_FORCE_GIGA); | |
8fc897b0 | 7142 | if (ret_val) |
1da177e4 LT |
7143 | return ret_val; |
7144 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_DSP_FFE, | |
7145 | IGP01E1000_PHY_DSP_FFE_DEFAULT); | |
8fc897b0 | 7146 | if (ret_val) |
1da177e4 LT |
7147 | return ret_val; |
7148 | ||
7149 | ret_val = e1000_write_phy_reg(hw, 0x0000, | |
7150 | IGP01E1000_IEEE_RESTART_AUTONEG); | |
8fc897b0 | 7151 | if (ret_val) |
1da177e4 LT |
7152 | return ret_val; |
7153 | ||
f8ec4733 | 7154 | mdelay(20); |
1da177e4 LT |
7155 | |
7156 | /* Now enable the transmitter */ | |
7157 | ret_val = e1000_write_phy_reg(hw, 0x2F5B, phy_saved_data); | |
7158 | ||
8fc897b0 | 7159 | if (ret_val) |
1da177e4 LT |
7160 | return ret_val; |
7161 | ||
7162 | hw->ffe_config_state = e1000_ffe_config_enabled; | |
7163 | } | |
7164 | } | |
7165 | return E1000_SUCCESS; | |
7166 | } | |
7167 | ||
7168 | /***************************************************************************** | |
7169 | * Set PHY to class A mode | |
7170 | * Assumes the following operations will follow to enable the new class mode. | |
7171 | * 1. Do a PHY soft reset | |
7172 | * 2. Restart auto-negotiation or force link. | |
7173 | * | |
7174 | * hw - Struct containing variables accessed by shared code | |
7175 | ****************************************************************************/ | |
406874a7 | 7176 | static s32 |
1da177e4 LT |
7177 | e1000_set_phy_mode(struct e1000_hw *hw) |
7178 | { | |
406874a7 JP |
7179 | s32 ret_val; |
7180 | u16 eeprom_data; | |
1da177e4 LT |
7181 | |
7182 | DEBUGFUNC("e1000_set_phy_mode"); | |
7183 | ||
8fc897b0 AK |
7184 | if ((hw->mac_type == e1000_82545_rev_3) && |
7185 | (hw->media_type == e1000_media_type_copper)) { | |
1da177e4 | 7186 | ret_val = e1000_read_eeprom(hw, EEPROM_PHY_CLASS_WORD, 1, &eeprom_data); |
8fc897b0 | 7187 | if (ret_val) { |
1da177e4 LT |
7188 | return ret_val; |
7189 | } | |
7190 | ||
8fc897b0 AK |
7191 | if ((eeprom_data != EEPROM_RESERVED_WORD) && |
7192 | (eeprom_data & EEPROM_PHY_CLASS_A)) { | |
1da177e4 | 7193 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x000B); |
8fc897b0 | 7194 | if (ret_val) |
1da177e4 LT |
7195 | return ret_val; |
7196 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0x8104); | |
8fc897b0 | 7197 | if (ret_val) |
1da177e4 LT |
7198 | return ret_val; |
7199 | ||
c3033b01 | 7200 | hw->phy_reset_disable = false; |
1da177e4 LT |
7201 | } |
7202 | } | |
7203 | ||
7204 | return E1000_SUCCESS; | |
7205 | } | |
7206 | ||
7207 | /***************************************************************************** | |
7208 | * | |
7209 | * This function sets the lplu state according to the active flag. When | |
7210 | * activating lplu this function also disables smart speed and vise versa. | |
7211 | * lplu will not be activated unless the device autonegotiation advertisment | |
7212 | * meets standards of either 10 or 10/100 or 10/100/1000 at all duplexes. | |
7213 | * hw: Struct containing variables accessed by shared code | |
7214 | * active - true to enable lplu false to disable lplu. | |
7215 | * | |
7216 | * returns: - E1000_ERR_PHY if fail to read/write the PHY | |
7217 | * E1000_SUCCESS at any other case. | |
7218 | * | |
7219 | ****************************************************************************/ | |
7220 | ||
406874a7 | 7221 | static s32 |
1da177e4 | 7222 | e1000_set_d3_lplu_state(struct e1000_hw *hw, |
c3033b01 | 7223 | bool active) |
1da177e4 | 7224 | { |
406874a7 JP |
7225 | u32 phy_ctrl = 0; |
7226 | s32 ret_val; | |
7227 | u16 phy_data; | |
1da177e4 LT |
7228 | DEBUGFUNC("e1000_set_d3_lplu_state"); |
7229 | ||
cd94dd0b AK |
7230 | if (hw->phy_type != e1000_phy_igp && hw->phy_type != e1000_phy_igp_2 |
7231 | && hw->phy_type != e1000_phy_igp_3) | |
1da177e4 LT |
7232 | return E1000_SUCCESS; |
7233 | ||
7234 | /* During driver activity LPLU should not be used or it will attain link | |
7235 | * from the lowest speeds starting from 10Mbps. The capability is used for | |
7236 | * Dx transitions and states */ | |
cd94dd0b | 7237 | if (hw->mac_type == e1000_82541_rev_2 || hw->mac_type == e1000_82547_rev_2) { |
2d7edb92 | 7238 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_GMII_FIFO, &phy_data); |
cd94dd0b | 7239 | if (ret_val) |
2d7edb92 | 7240 | return ret_val; |
cd94dd0b AK |
7241 | } else if (hw->mac_type == e1000_ich8lan) { |
7242 | /* MAC writes into PHY register based on the state transition | |
7243 | * and start auto-negotiation. SW driver can overwrite the settings | |
7244 | * in CSR PHY power control E1000_PHY_CTRL register. */ | |
7245 | phy_ctrl = E1000_READ_REG(hw, PHY_CTRL); | |
2d7edb92 MC |
7246 | } else { |
7247 | ret_val = e1000_read_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, &phy_data); | |
8fc897b0 | 7248 | if (ret_val) |
1da177e4 | 7249 | return ret_val; |
2d7edb92 MC |
7250 | } |
7251 | ||
8fc897b0 AK |
7252 | if (!active) { |
7253 | if (hw->mac_type == e1000_82541_rev_2 || | |
7254 | hw->mac_type == e1000_82547_rev_2) { | |
2d7edb92 MC |
7255 | phy_data &= ~IGP01E1000_GMII_FLEX_SPD; |
7256 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, phy_data); | |
8fc897b0 | 7257 | if (ret_val) |
2d7edb92 MC |
7258 | return ret_val; |
7259 | } else { | |
cd94dd0b AK |
7260 | if (hw->mac_type == e1000_ich8lan) { |
7261 | phy_ctrl &= ~E1000_PHY_CTRL_NOND0A_LPLU; | |
7262 | E1000_WRITE_REG(hw, PHY_CTRL, phy_ctrl); | |
7263 | } else { | |
2d7edb92 MC |
7264 | phy_data &= ~IGP02E1000_PM_D3_LPLU; |
7265 | ret_val = e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, | |
7266 | phy_data); | |
7267 | if (ret_val) | |
7268 | return ret_val; | |
cd94dd0b | 7269 | } |
2d7edb92 | 7270 | } |
1da177e4 LT |
7271 | |
7272 | /* LPLU and SmartSpeed are mutually exclusive. LPLU is used during | |
7273 | * Dx states where the power conservation is most important. During | |
7274 | * driver activity we should enable SmartSpeed, so performance is | |
7275 | * maintained. */ | |
7276 | if (hw->smart_speed == e1000_smart_speed_on) { | |
7277 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, | |
7278 | &phy_data); | |
8fc897b0 | 7279 | if (ret_val) |
1da177e4 LT |
7280 | return ret_val; |
7281 | ||
7282 | phy_data |= IGP01E1000_PSCFR_SMART_SPEED; | |
7283 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, | |
7284 | phy_data); | |
8fc897b0 | 7285 | if (ret_val) |
1da177e4 LT |
7286 | return ret_val; |
7287 | } else if (hw->smart_speed == e1000_smart_speed_off) { | |
7288 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, | |
7289 | &phy_data); | |
35574764 | 7290 | if (ret_val) |
1da177e4 LT |
7291 | return ret_val; |
7292 | ||
7293 | phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; | |
7294 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, | |
7295 | phy_data); | |
8fc897b0 | 7296 | if (ret_val) |
1da177e4 LT |
7297 | return ret_val; |
7298 | } | |
7299 | ||
8fc897b0 AK |
7300 | } else if ((hw->autoneg_advertised == AUTONEG_ADVERTISE_SPEED_DEFAULT) || |
7301 | (hw->autoneg_advertised == AUTONEG_ADVERTISE_10_ALL ) || | |
7302 | (hw->autoneg_advertised == AUTONEG_ADVERTISE_10_100_ALL)) { | |
1da177e4 | 7303 | |
8fc897b0 | 7304 | if (hw->mac_type == e1000_82541_rev_2 || |
cd94dd0b | 7305 | hw->mac_type == e1000_82547_rev_2) { |
2d7edb92 MC |
7306 | phy_data |= IGP01E1000_GMII_FLEX_SPD; |
7307 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_GMII_FIFO, phy_data); | |
8fc897b0 | 7308 | if (ret_val) |
2d7edb92 MC |
7309 | return ret_val; |
7310 | } else { | |
cd94dd0b AK |
7311 | if (hw->mac_type == e1000_ich8lan) { |
7312 | phy_ctrl |= E1000_PHY_CTRL_NOND0A_LPLU; | |
7313 | E1000_WRITE_REG(hw, PHY_CTRL, phy_ctrl); | |
7314 | } else { | |
2d7edb92 MC |
7315 | phy_data |= IGP02E1000_PM_D3_LPLU; |
7316 | ret_val = e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, | |
7317 | phy_data); | |
7318 | if (ret_val) | |
7319 | return ret_val; | |
cd94dd0b | 7320 | } |
2d7edb92 MC |
7321 | } |
7322 | ||
7323 | /* When LPLU is enabled we should disable SmartSpeed */ | |
7324 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, &phy_data); | |
8fc897b0 | 7325 | if (ret_val) |
2d7edb92 MC |
7326 | return ret_val; |
7327 | ||
7328 | phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; | |
7329 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, phy_data); | |
8fc897b0 | 7330 | if (ret_val) |
2d7edb92 MC |
7331 | return ret_val; |
7332 | ||
7333 | } | |
7334 | return E1000_SUCCESS; | |
7335 | } | |
7336 | ||
7337 | /***************************************************************************** | |
7338 | * | |
7339 | * This function sets the lplu d0 state according to the active flag. When | |
7340 | * activating lplu this function also disables smart speed and vise versa. | |
7341 | * lplu will not be activated unless the device autonegotiation advertisment | |
7342 | * meets standards of either 10 or 10/100 or 10/100/1000 at all duplexes. | |
7343 | * hw: Struct containing variables accessed by shared code | |
7344 | * active - true to enable lplu false to disable lplu. | |
7345 | * | |
7346 | * returns: - E1000_ERR_PHY if fail to read/write the PHY | |
7347 | * E1000_SUCCESS at any other case. | |
7348 | * | |
7349 | ****************************************************************************/ | |
7350 | ||
406874a7 | 7351 | static s32 |
2d7edb92 | 7352 | e1000_set_d0_lplu_state(struct e1000_hw *hw, |
c3033b01 | 7353 | bool active) |
2d7edb92 | 7354 | { |
406874a7 JP |
7355 | u32 phy_ctrl = 0; |
7356 | s32 ret_val; | |
7357 | u16 phy_data; | |
2d7edb92 MC |
7358 | DEBUGFUNC("e1000_set_d0_lplu_state"); |
7359 | ||
8fc897b0 | 7360 | if (hw->mac_type <= e1000_82547_rev_2) |
2d7edb92 MC |
7361 | return E1000_SUCCESS; |
7362 | ||
cd94dd0b AK |
7363 | if (hw->mac_type == e1000_ich8lan) { |
7364 | phy_ctrl = E1000_READ_REG(hw, PHY_CTRL); | |
7365 | } else { | |
2d7edb92 | 7366 | ret_val = e1000_read_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, &phy_data); |
8fc897b0 | 7367 | if (ret_val) |
1da177e4 | 7368 | return ret_val; |
cd94dd0b | 7369 | } |
1da177e4 | 7370 | |
2d7edb92 | 7371 | if (!active) { |
cd94dd0b AK |
7372 | if (hw->mac_type == e1000_ich8lan) { |
7373 | phy_ctrl &= ~E1000_PHY_CTRL_D0A_LPLU; | |
7374 | E1000_WRITE_REG(hw, PHY_CTRL, phy_ctrl); | |
7375 | } else { | |
2d7edb92 MC |
7376 | phy_data &= ~IGP02E1000_PM_D0_LPLU; |
7377 | ret_val = e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, phy_data); | |
7378 | if (ret_val) | |
7379 | return ret_val; | |
cd94dd0b | 7380 | } |
2d7edb92 MC |
7381 | |
7382 | /* LPLU and SmartSpeed are mutually exclusive. LPLU is used during | |
7383 | * Dx states where the power conservation is most important. During | |
7384 | * driver activity we should enable SmartSpeed, so performance is | |
7385 | * maintained. */ | |
7386 | if (hw->smart_speed == e1000_smart_speed_on) { | |
7387 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, | |
7388 | &phy_data); | |
8fc897b0 | 7389 | if (ret_val) |
2d7edb92 MC |
7390 | return ret_val; |
7391 | ||
7392 | phy_data |= IGP01E1000_PSCFR_SMART_SPEED; | |
7393 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, | |
7394 | phy_data); | |
8fc897b0 | 7395 | if (ret_val) |
2d7edb92 MC |
7396 | return ret_val; |
7397 | } else if (hw->smart_speed == e1000_smart_speed_off) { | |
7398 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, | |
7399 | &phy_data); | |
35574764 | 7400 | if (ret_val) |
2d7edb92 MC |
7401 | return ret_val; |
7402 | ||
7403 | phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; | |
7404 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, | |
7405 | phy_data); | |
8fc897b0 | 7406 | if (ret_val) |
2d7edb92 MC |
7407 | return ret_val; |
7408 | } | |
7409 | ||
7410 | ||
7411 | } else { | |
76c224bc | 7412 | |
cd94dd0b AK |
7413 | if (hw->mac_type == e1000_ich8lan) { |
7414 | phy_ctrl |= E1000_PHY_CTRL_D0A_LPLU; | |
7415 | E1000_WRITE_REG(hw, PHY_CTRL, phy_ctrl); | |
7416 | } else { | |
76c224bc | 7417 | phy_data |= IGP02E1000_PM_D0_LPLU; |
2d7edb92 MC |
7418 | ret_val = e1000_write_phy_reg(hw, IGP02E1000_PHY_POWER_MGMT, phy_data); |
7419 | if (ret_val) | |
7420 | return ret_val; | |
cd94dd0b | 7421 | } |
2d7edb92 | 7422 | |
1da177e4 LT |
7423 | /* When LPLU is enabled we should disable SmartSpeed */ |
7424 | ret_val = e1000_read_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, &phy_data); | |
8fc897b0 | 7425 | if (ret_val) |
1da177e4 LT |
7426 | return ret_val; |
7427 | ||
7428 | phy_data &= ~IGP01E1000_PSCFR_SMART_SPEED; | |
7429 | ret_val = e1000_write_phy_reg(hw, IGP01E1000_PHY_PORT_CONFIG, phy_data); | |
8fc897b0 | 7430 | if (ret_val) |
1da177e4 LT |
7431 | return ret_val; |
7432 | ||
7433 | } | |
7434 | return E1000_SUCCESS; | |
7435 | } | |
7436 | ||
7437 | /****************************************************************************** | |
7438 | * Change VCO speed register to improve Bit Error Rate performance of SERDES. | |
7439 | * | |
7440 | * hw - Struct containing variables accessed by shared code | |
7441 | *****************************************************************************/ | |
406874a7 | 7442 | static s32 |
1da177e4 LT |
7443 | e1000_set_vco_speed(struct e1000_hw *hw) |
7444 | { | |
406874a7 JP |
7445 | s32 ret_val; |
7446 | u16 default_page = 0; | |
7447 | u16 phy_data; | |
1da177e4 LT |
7448 | |
7449 | DEBUGFUNC("e1000_set_vco_speed"); | |
7450 | ||
8fc897b0 | 7451 | switch (hw->mac_type) { |
1da177e4 LT |
7452 | case e1000_82545_rev_3: |
7453 | case e1000_82546_rev_3: | |
7454 | break; | |
7455 | default: | |
7456 | return E1000_SUCCESS; | |
7457 | } | |
7458 | ||
7459 | /* Set PHY register 30, page 5, bit 8 to 0 */ | |
7460 | ||
7461 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, &default_page); | |
8fc897b0 | 7462 | if (ret_val) |
1da177e4 LT |
7463 | return ret_val; |
7464 | ||
7465 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0005); | |
8fc897b0 | 7466 | if (ret_val) |
1da177e4 LT |
7467 | return ret_val; |
7468 | ||
7469 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, &phy_data); | |
8fc897b0 | 7470 | if (ret_val) |
1da177e4 LT |
7471 | return ret_val; |
7472 | ||
7473 | phy_data &= ~M88E1000_PHY_VCO_REG_BIT8; | |
7474 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, phy_data); | |
8fc897b0 | 7475 | if (ret_val) |
1da177e4 LT |
7476 | return ret_val; |
7477 | ||
7478 | /* Set PHY register 30, page 4, bit 11 to 1 */ | |
7479 | ||
7480 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0004); | |
8fc897b0 | 7481 | if (ret_val) |
1da177e4 LT |
7482 | return ret_val; |
7483 | ||
7484 | ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, &phy_data); | |
8fc897b0 | 7485 | if (ret_val) |
1da177e4 LT |
7486 | return ret_val; |
7487 | ||
7488 | phy_data |= M88E1000_PHY_VCO_REG_BIT11; | |
7489 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, phy_data); | |
8fc897b0 | 7490 | if (ret_val) |
1da177e4 LT |
7491 | return ret_val; |
7492 | ||
7493 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, default_page); | |
8fc897b0 | 7494 | if (ret_val) |
1da177e4 LT |
7495 | return ret_val; |
7496 | ||
7497 | return E1000_SUCCESS; | |
7498 | } | |
7499 | ||
1da177e4 | 7500 | |
2d7edb92 MC |
7501 | /***************************************************************************** |
7502 | * This function reads the cookie from ARC ram. | |
7503 | * | |
7504 | * returns: - E1000_SUCCESS . | |
7505 | ****************************************************************************/ | |
406874a7 JP |
7506 | static s32 |
7507 | e1000_host_if_read_cookie(struct e1000_hw * hw, u8 *buffer) | |
2d7edb92 | 7508 | { |
406874a7 JP |
7509 | u8 i; |
7510 | u32 offset = E1000_MNG_DHCP_COOKIE_OFFSET; | |
7511 | u8 length = E1000_MNG_DHCP_COOKIE_LENGTH; | |
1da177e4 | 7512 | |
2d7edb92 MC |
7513 | length = (length >> 2); |
7514 | offset = (offset >> 2); | |
1da177e4 | 7515 | |
2d7edb92 | 7516 | for (i = 0; i < length; i++) { |
406874a7 | 7517 | *((u32 *) buffer + i) = |
2d7edb92 MC |
7518 | E1000_READ_REG_ARRAY_DWORD(hw, HOST_IF, offset + i); |
7519 | } | |
7520 | return E1000_SUCCESS; | |
7521 | } | |
7522 | ||
7523 | ||
7524 | /***************************************************************************** | |
7525 | * This function checks whether the HOST IF is enabled for command operaton | |
7526 | * and also checks whether the previous command is completed. | |
7527 | * It busy waits in case of previous command is not completed. | |
7528 | * | |
76c224bc | 7529 | * returns: - E1000_ERR_HOST_INTERFACE_COMMAND in case if is not ready or |
2d7edb92 MC |
7530 | * timeout |
7531 | * - E1000_SUCCESS for success. | |
7532 | ****************************************************************************/ | |
406874a7 | 7533 | static s32 |
2d7edb92 MC |
7534 | e1000_mng_enable_host_if(struct e1000_hw * hw) |
7535 | { | |
406874a7 JP |
7536 | u32 hicr; |
7537 | u8 i; | |
2d7edb92 MC |
7538 | |
7539 | /* Check that the host interface is enabled. */ | |
7540 | hicr = E1000_READ_REG(hw, HICR); | |
7541 | if ((hicr & E1000_HICR_EN) == 0) { | |
7542 | DEBUGOUT("E1000_HOST_EN bit disabled.\n"); | |
7543 | return -E1000_ERR_HOST_INTERFACE_COMMAND; | |
7544 | } | |
7545 | /* check the previous command is completed */ | |
7546 | for (i = 0; i < E1000_MNG_DHCP_COMMAND_TIMEOUT; i++) { | |
7547 | hicr = E1000_READ_REG(hw, HICR); | |
7548 | if (!(hicr & E1000_HICR_C)) | |
7549 | break; | |
f8ec4733 | 7550 | mdelay(1); |
2d7edb92 MC |
7551 | } |
7552 | ||
76c224bc | 7553 | if (i == E1000_MNG_DHCP_COMMAND_TIMEOUT) { |
2d7edb92 MC |
7554 | DEBUGOUT("Previous command timeout failed .\n"); |
7555 | return -E1000_ERR_HOST_INTERFACE_COMMAND; | |
7556 | } | |
7557 | return E1000_SUCCESS; | |
7558 | } | |
7559 | ||
7560 | /***************************************************************************** | |
7561 | * This function writes the buffer content at the offset given on the host if. | |
7562 | * It also does alignment considerations to do the writes in most efficient way. | |
7563 | * Also fills up the sum of the buffer in *buffer parameter. | |
7564 | * | |
7565 | * returns - E1000_SUCCESS for success. | |
7566 | ****************************************************************************/ | |
406874a7 JP |
7567 | static s32 |
7568 | e1000_mng_host_if_write(struct e1000_hw * hw, u8 *buffer, | |
7569 | u16 length, u16 offset, u8 *sum) | |
2d7edb92 | 7570 | { |
406874a7 JP |
7571 | u8 *tmp; |
7572 | u8 *bufptr = buffer; | |
7573 | u32 data = 0; | |
7574 | u16 remaining, i, j, prev_bytes; | |
2d7edb92 MC |
7575 | |
7576 | /* sum = only sum of the data and it is not checksum */ | |
7577 | ||
7578 | if (length == 0 || offset + length > E1000_HI_MAX_MNG_DATA_LENGTH) { | |
7579 | return -E1000_ERR_PARAM; | |
7580 | } | |
7581 | ||
406874a7 | 7582 | tmp = (u8 *)&data; |
2d7edb92 MC |
7583 | prev_bytes = offset & 0x3; |
7584 | offset &= 0xFFFC; | |
7585 | offset >>= 2; | |
7586 | ||
7587 | if (prev_bytes) { | |
7588 | data = E1000_READ_REG_ARRAY_DWORD(hw, HOST_IF, offset); | |
406874a7 | 7589 | for (j = prev_bytes; j < sizeof(u32); j++) { |
2d7edb92 MC |
7590 | *(tmp + j) = *bufptr++; |
7591 | *sum += *(tmp + j); | |
7592 | } | |
7593 | E1000_WRITE_REG_ARRAY_DWORD(hw, HOST_IF, offset, data); | |
7594 | length -= j - prev_bytes; | |
7595 | offset++; | |
7596 | } | |
7597 | ||
7598 | remaining = length & 0x3; | |
7599 | length -= remaining; | |
7600 | ||
7601 | /* Calculate length in DWORDs */ | |
7602 | length >>= 2; | |
7603 | ||
7604 | /* The device driver writes the relevant command block into the | |
7605 | * ram area. */ | |
7606 | for (i = 0; i < length; i++) { | |
406874a7 | 7607 | for (j = 0; j < sizeof(u32); j++) { |
2d7edb92 MC |
7608 | *(tmp + j) = *bufptr++; |
7609 | *sum += *(tmp + j); | |
7610 | } | |
7611 | ||
7612 | E1000_WRITE_REG_ARRAY_DWORD(hw, HOST_IF, offset + i, data); | |
7613 | } | |
7614 | if (remaining) { | |
406874a7 | 7615 | for (j = 0; j < sizeof(u32); j++) { |
2d7edb92 MC |
7616 | if (j < remaining) |
7617 | *(tmp + j) = *bufptr++; | |
7618 | else | |
7619 | *(tmp + j) = 0; | |
7620 | ||
7621 | *sum += *(tmp + j); | |
7622 | } | |
7623 | E1000_WRITE_REG_ARRAY_DWORD(hw, HOST_IF, offset + i, data); | |
7624 | } | |
7625 | ||
7626 | return E1000_SUCCESS; | |
7627 | } | |
7628 | ||
7629 | ||
7630 | /***************************************************************************** | |
7631 | * This function writes the command header after does the checksum calculation. | |
7632 | * | |
7633 | * returns - E1000_SUCCESS for success. | |
7634 | ****************************************************************************/ | |
406874a7 | 7635 | static s32 |
2d7edb92 MC |
7636 | e1000_mng_write_cmd_header(struct e1000_hw * hw, |
7637 | struct e1000_host_mng_command_header * hdr) | |
7638 | { | |
406874a7 JP |
7639 | u16 i; |
7640 | u8 sum; | |
7641 | u8 *buffer; | |
2d7edb92 MC |
7642 | |
7643 | /* Write the whole command header structure which includes sum of | |
7644 | * the buffer */ | |
7645 | ||
406874a7 | 7646 | u16 length = sizeof(struct e1000_host_mng_command_header); |
2d7edb92 MC |
7647 | |
7648 | sum = hdr->checksum; | |
7649 | hdr->checksum = 0; | |
7650 | ||
406874a7 | 7651 | buffer = (u8 *) hdr; |
2d7edb92 | 7652 | i = length; |
8fc897b0 | 7653 | while (i--) |
2d7edb92 MC |
7654 | sum += buffer[i]; |
7655 | ||
7656 | hdr->checksum = 0 - sum; | |
7657 | ||
7658 | length >>= 2; | |
7659 | /* The device driver writes the relevant command block into the ram area. */ | |
4ca213a6 | 7660 | for (i = 0; i < length; i++) { |
406874a7 | 7661 | E1000_WRITE_REG_ARRAY_DWORD(hw, HOST_IF, i, *((u32 *) hdr + i)); |
4ca213a6 AK |
7662 | E1000_WRITE_FLUSH(hw); |
7663 | } | |
2d7edb92 MC |
7664 | |
7665 | return E1000_SUCCESS; | |
7666 | } | |
7667 | ||
7668 | ||
7669 | /***************************************************************************** | |
7670 | * This function indicates to ARC that a new command is pending which completes | |
7671 | * one write operation by the driver. | |
7672 | * | |
7673 | * returns - E1000_SUCCESS for success. | |
7674 | ****************************************************************************/ | |
406874a7 | 7675 | static s32 |
8fc897b0 | 7676 | e1000_mng_write_commit(struct e1000_hw * hw) |
2d7edb92 | 7677 | { |
406874a7 | 7678 | u32 hicr; |
2d7edb92 MC |
7679 | |
7680 | hicr = E1000_READ_REG(hw, HICR); | |
7681 | /* Setting this bit tells the ARC that a new command is pending. */ | |
7682 | E1000_WRITE_REG(hw, HICR, hicr | E1000_HICR_C); | |
7683 | ||
7684 | return E1000_SUCCESS; | |
7685 | } | |
7686 | ||
7687 | ||
7688 | /***************************************************************************** | |
7689 | * This function checks the mode of the firmware. | |
7690 | * | |
c3033b01 | 7691 | * returns - true when the mode is IAMT or false. |
2d7edb92 | 7692 | ****************************************************************************/ |
c3033b01 | 7693 | bool |
cd94dd0b | 7694 | e1000_check_mng_mode(struct e1000_hw *hw) |
2d7edb92 | 7695 | { |
406874a7 | 7696 | u32 fwsm; |
2d7edb92 MC |
7697 | |
7698 | fwsm = E1000_READ_REG(hw, FWSM); | |
7699 | ||
cd94dd0b AK |
7700 | if (hw->mac_type == e1000_ich8lan) { |
7701 | if ((fwsm & E1000_FWSM_MODE_MASK) == | |
7702 | (E1000_MNG_ICH_IAMT_MODE << E1000_FWSM_MODE_SHIFT)) | |
c3033b01 | 7703 | return true; |
cd94dd0b AK |
7704 | } else if ((fwsm & E1000_FWSM_MODE_MASK) == |
7705 | (E1000_MNG_IAMT_MODE << E1000_FWSM_MODE_SHIFT)) | |
c3033b01 | 7706 | return true; |
2d7edb92 | 7707 | |
c3033b01 | 7708 | return false; |
2d7edb92 MC |
7709 | } |
7710 | ||
7711 | ||
7712 | /***************************************************************************** | |
7713 | * This function writes the dhcp info . | |
7714 | ****************************************************************************/ | |
406874a7 JP |
7715 | s32 |
7716 | e1000_mng_write_dhcp_info(struct e1000_hw * hw, u8 *buffer, | |
7717 | u16 length) | |
2d7edb92 | 7718 | { |
406874a7 | 7719 | s32 ret_val; |
2d7edb92 MC |
7720 | struct e1000_host_mng_command_header hdr; |
7721 | ||
7722 | hdr.command_id = E1000_MNG_DHCP_TX_PAYLOAD_CMD; | |
7723 | hdr.command_length = length; | |
7724 | hdr.reserved1 = 0; | |
7725 | hdr.reserved2 = 0; | |
7726 | hdr.checksum = 0; | |
7727 | ||
7728 | ret_val = e1000_mng_enable_host_if(hw); | |
7729 | if (ret_val == E1000_SUCCESS) { | |
7730 | ret_val = e1000_mng_host_if_write(hw, buffer, length, sizeof(hdr), | |
7731 | &(hdr.checksum)); | |
7732 | if (ret_val == E1000_SUCCESS) { | |
7733 | ret_val = e1000_mng_write_cmd_header(hw, &hdr); | |
7734 | if (ret_val == E1000_SUCCESS) | |
7735 | ret_val = e1000_mng_write_commit(hw); | |
7736 | } | |
7737 | } | |
7738 | return ret_val; | |
7739 | } | |
7740 | ||
7741 | ||
7742 | /***************************************************************************** | |
7743 | * This function calculates the checksum. | |
7744 | * | |
7745 | * returns - checksum of buffer contents. | |
7746 | ****************************************************************************/ | |
406874a7 JP |
7747 | static u8 |
7748 | e1000_calculate_mng_checksum(char *buffer, u32 length) | |
2d7edb92 | 7749 | { |
406874a7 JP |
7750 | u8 sum = 0; |
7751 | u32 i; | |
2d7edb92 MC |
7752 | |
7753 | if (!buffer) | |
7754 | return 0; | |
7755 | ||
7756 | for (i=0; i < length; i++) | |
7757 | sum += buffer[i]; | |
7758 | ||
406874a7 | 7759 | return (u8) (0 - sum); |
2d7edb92 MC |
7760 | } |
7761 | ||
7762 | /***************************************************************************** | |
7763 | * This function checks whether tx pkt filtering needs to be enabled or not. | |
7764 | * | |
c3033b01 | 7765 | * returns - true for packet filtering or false. |
2d7edb92 | 7766 | ****************************************************************************/ |
c3033b01 | 7767 | bool |
2d7edb92 MC |
7768 | e1000_enable_tx_pkt_filtering(struct e1000_hw *hw) |
7769 | { | |
7770 | /* called in init as well as watchdog timer functions */ | |
7771 | ||
406874a7 | 7772 | s32 ret_val, checksum; |
c3033b01 | 7773 | bool tx_filter = false; |
2d7edb92 | 7774 | struct e1000_host_mng_dhcp_cookie *hdr = &(hw->mng_cookie); |
406874a7 | 7775 | u8 *buffer = (u8 *) &(hw->mng_cookie); |
2d7edb92 MC |
7776 | |
7777 | if (e1000_check_mng_mode(hw)) { | |
7778 | ret_val = e1000_mng_enable_host_if(hw); | |
7779 | if (ret_val == E1000_SUCCESS) { | |
7780 | ret_val = e1000_host_if_read_cookie(hw, buffer); | |
7781 | if (ret_val == E1000_SUCCESS) { | |
7782 | checksum = hdr->checksum; | |
7783 | hdr->checksum = 0; | |
7784 | if ((hdr->signature == E1000_IAMT_SIGNATURE) && | |
7785 | checksum == e1000_calculate_mng_checksum((char *)buffer, | |
7786 | E1000_MNG_DHCP_COOKIE_LENGTH)) { | |
7787 | if (hdr->status & | |
7788 | E1000_MNG_DHCP_COOKIE_STATUS_PARSING_SUPPORT) | |
c3033b01 | 7789 | tx_filter = true; |
2d7edb92 | 7790 | } else |
c3033b01 | 7791 | tx_filter = true; |
2d7edb92 | 7792 | } else |
c3033b01 | 7793 | tx_filter = true; |
2d7edb92 MC |
7794 | } |
7795 | } | |
7796 | ||
7797 | hw->tx_pkt_filtering = tx_filter; | |
7798 | return tx_filter; | |
7799 | } | |
7800 | ||
7801 | /****************************************************************************** | |
7802 | * Verifies the hardware needs to allow ARPs to be processed by the host | |
7803 | * | |
7804 | * hw - Struct containing variables accessed by shared code | |
7805 | * | |
c3033b01 | 7806 | * returns: - true/false |
2d7edb92 MC |
7807 | * |
7808 | *****************************************************************************/ | |
406874a7 | 7809 | u32 |
2d7edb92 MC |
7810 | e1000_enable_mng_pass_thru(struct e1000_hw *hw) |
7811 | { | |
406874a7 JP |
7812 | u32 manc; |
7813 | u32 fwsm, factps; | |
2d7edb92 MC |
7814 | |
7815 | if (hw->asf_firmware_present) { | |
7816 | manc = E1000_READ_REG(hw, MANC); | |
7817 | ||
7818 | if (!(manc & E1000_MANC_RCV_TCO_EN) || | |
7819 | !(manc & E1000_MANC_EN_MAC_ADDR_FILTER)) | |
c3033b01 JP |
7820 | return false; |
7821 | if (e1000_arc_subsystem_valid(hw)) { | |
2d7edb92 MC |
7822 | fwsm = E1000_READ_REG(hw, FWSM); |
7823 | factps = E1000_READ_REG(hw, FACTPS); | |
7824 | ||
0fccd0e9 JG |
7825 | if ((((fwsm & E1000_FWSM_MODE_MASK) >> E1000_FWSM_MODE_SHIFT) == |
7826 | e1000_mng_mode_pt) && !(factps & E1000_FACTPS_MNGCG)) | |
c3033b01 | 7827 | return true; |
2d7edb92 MC |
7828 | } else |
7829 | if ((manc & E1000_MANC_SMBUS_EN) && !(manc & E1000_MANC_ASF_EN)) | |
c3033b01 | 7830 | return true; |
2d7edb92 | 7831 | } |
c3033b01 | 7832 | return false; |
2d7edb92 MC |
7833 | } |
7834 | ||
406874a7 | 7835 | static s32 |
2d7edb92 MC |
7836 | e1000_polarity_reversal_workaround(struct e1000_hw *hw) |
7837 | { | |
406874a7 JP |
7838 | s32 ret_val; |
7839 | u16 mii_status_reg; | |
7840 | u16 i; | |
2d7edb92 MC |
7841 | |
7842 | /* Polarity reversal workaround for forced 10F/10H links. */ | |
7843 | ||
7844 | /* Disable the transmitter on the PHY */ | |
7845 | ||
7846 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0019); | |
8fc897b0 | 7847 | if (ret_val) |
1da177e4 LT |
7848 | return ret_val; |
7849 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0xFFFF); | |
8fc897b0 | 7850 | if (ret_val) |
1da177e4 LT |
7851 | return ret_val; |
7852 | ||
7853 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0000); | |
8fc897b0 | 7854 | if (ret_val) |
1da177e4 LT |
7855 | return ret_val; |
7856 | ||
7857 | /* This loop will early-out if the NO link condition has been met. */ | |
8fc897b0 | 7858 | for (i = PHY_FORCE_TIME; i > 0; i--) { |
1da177e4 LT |
7859 | /* Read the MII Status Register and wait for Link Status bit |
7860 | * to be clear. | |
7861 | */ | |
7862 | ||
7863 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 7864 | if (ret_val) |
1da177e4 LT |
7865 | return ret_val; |
7866 | ||
7867 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 7868 | if (ret_val) |
1da177e4 LT |
7869 | return ret_val; |
7870 | ||
8fc897b0 | 7871 | if ((mii_status_reg & ~MII_SR_LINK_STATUS) == 0) break; |
f8ec4733 | 7872 | mdelay(100); |
1da177e4 LT |
7873 | } |
7874 | ||
7875 | /* Recommended delay time after link has been lost */ | |
f8ec4733 | 7876 | mdelay(1000); |
1da177e4 LT |
7877 | |
7878 | /* Now we will re-enable th transmitter on the PHY */ | |
7879 | ||
7880 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0019); | |
8fc897b0 | 7881 | if (ret_val) |
1da177e4 | 7882 | return ret_val; |
f8ec4733 | 7883 | mdelay(50); |
1da177e4 | 7884 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0xFFF0); |
8fc897b0 | 7885 | if (ret_val) |
1da177e4 | 7886 | return ret_val; |
f8ec4733 | 7887 | mdelay(50); |
1da177e4 | 7888 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0xFF00); |
8fc897b0 | 7889 | if (ret_val) |
1da177e4 | 7890 | return ret_val; |
f8ec4733 | 7891 | mdelay(50); |
1da177e4 | 7892 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, 0x0000); |
8fc897b0 | 7893 | if (ret_val) |
1da177e4 LT |
7894 | return ret_val; |
7895 | ||
7896 | ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0000); | |
8fc897b0 | 7897 | if (ret_val) |
1da177e4 LT |
7898 | return ret_val; |
7899 | ||
7900 | /* This loop will early-out if the link condition has been met. */ | |
8fc897b0 | 7901 | for (i = PHY_FORCE_TIME; i > 0; i--) { |
1da177e4 LT |
7902 | /* Read the MII Status Register and wait for Link Status bit |
7903 | * to be set. | |
7904 | */ | |
7905 | ||
7906 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 7907 | if (ret_val) |
1da177e4 LT |
7908 | return ret_val; |
7909 | ||
7910 | ret_val = e1000_read_phy_reg(hw, PHY_STATUS, &mii_status_reg); | |
8fc897b0 | 7911 | if (ret_val) |
1da177e4 LT |
7912 | return ret_val; |
7913 | ||
8fc897b0 | 7914 | if (mii_status_reg & MII_SR_LINK_STATUS) break; |
f8ec4733 | 7915 | mdelay(100); |
1da177e4 LT |
7916 | } |
7917 | return E1000_SUCCESS; | |
7918 | } | |
7919 | ||
2d7edb92 MC |
7920 | /*************************************************************************** |
7921 | * | |
7922 | * Disables PCI-Express master access. | |
7923 | * | |
7924 | * hw: Struct containing variables accessed by shared code | |
7925 | * | |
7926 | * returns: - none. | |
7927 | * | |
7928 | ***************************************************************************/ | |
3ad2cc67 | 7929 | static void |
2d7edb92 MC |
7930 | e1000_set_pci_express_master_disable(struct e1000_hw *hw) |
7931 | { | |
406874a7 | 7932 | u32 ctrl; |
2d7edb92 MC |
7933 | |
7934 | DEBUGFUNC("e1000_set_pci_express_master_disable"); | |
7935 | ||
7936 | if (hw->bus_type != e1000_bus_type_pci_express) | |
7937 | return; | |
7938 | ||
7939 | ctrl = E1000_READ_REG(hw, CTRL); | |
7940 | ctrl |= E1000_CTRL_GIO_MASTER_DISABLE; | |
7941 | E1000_WRITE_REG(hw, CTRL, ctrl); | |
7942 | } | |
7943 | ||
2d7edb92 MC |
7944 | /******************************************************************************* |
7945 | * | |
7946 | * Disables PCI-Express master access and verifies there are no pending requests | |
7947 | * | |
7948 | * hw: Struct containing variables accessed by shared code | |
7949 | * | |
7950 | * returns: - E1000_ERR_MASTER_REQUESTS_PENDING if master disable bit hasn't | |
7951 | * caused the master requests to be disabled. | |
7952 | * E1000_SUCCESS master requests disabled. | |
7953 | * | |
7954 | ******************************************************************************/ | |
406874a7 | 7955 | s32 |
2d7edb92 MC |
7956 | e1000_disable_pciex_master(struct e1000_hw *hw) |
7957 | { | |
406874a7 | 7958 | s32 timeout = MASTER_DISABLE_TIMEOUT; /* 80ms */ |
2d7edb92 MC |
7959 | |
7960 | DEBUGFUNC("e1000_disable_pciex_master"); | |
7961 | ||
7962 | if (hw->bus_type != e1000_bus_type_pci_express) | |
7963 | return E1000_SUCCESS; | |
7964 | ||
7965 | e1000_set_pci_express_master_disable(hw); | |
7966 | ||
8fc897b0 AK |
7967 | while (timeout) { |
7968 | if (!(E1000_READ_REG(hw, STATUS) & E1000_STATUS_GIO_MASTER_ENABLE)) | |
2d7edb92 MC |
7969 | break; |
7970 | else | |
7971 | udelay(100); | |
7972 | timeout--; | |
7973 | } | |
7974 | ||
8fc897b0 | 7975 | if (!timeout) { |
2d7edb92 MC |
7976 | DEBUGOUT("Master requests are pending.\n"); |
7977 | return -E1000_ERR_MASTER_REQUESTS_PENDING; | |
7978 | } | |
7979 | ||
7980 | return E1000_SUCCESS; | |
7981 | } | |
7982 | ||
7983 | /******************************************************************************* | |
7984 | * | |
7985 | * Check for EEPROM Auto Read bit done. | |
7986 | * | |
7987 | * hw: Struct containing variables accessed by shared code | |
7988 | * | |
7989 | * returns: - E1000_ERR_RESET if fail to reset MAC | |
7990 | * E1000_SUCCESS at any other case. | |
7991 | * | |
7992 | ******************************************************************************/ | |
406874a7 | 7993 | static s32 |
2d7edb92 MC |
7994 | e1000_get_auto_rd_done(struct e1000_hw *hw) |
7995 | { | |
406874a7 | 7996 | s32 timeout = AUTO_READ_DONE_TIMEOUT; |
2d7edb92 MC |
7997 | |
7998 | DEBUGFUNC("e1000_get_auto_rd_done"); | |
7999 | ||
8000 | switch (hw->mac_type) { | |
8001 | default: | |
f8ec4733 | 8002 | msleep(5); |
2d7edb92 | 8003 | break; |
868d5309 MC |
8004 | case e1000_82571: |
8005 | case e1000_82572: | |
2d7edb92 | 8006 | case e1000_82573: |
6418ecc6 | 8007 | case e1000_80003es2lan: |
cd94dd0b AK |
8008 | case e1000_ich8lan: |
8009 | while (timeout) { | |
8010 | if (E1000_READ_REG(hw, EECD) & E1000_EECD_AUTO_RD) | |
8011 | break; | |
f8ec4733 | 8012 | else msleep(1); |
2d7edb92 MC |
8013 | timeout--; |
8014 | } | |
8015 | ||
8fc897b0 | 8016 | if (!timeout) { |
2d7edb92 MC |
8017 | DEBUGOUT("Auto read by HW from EEPROM has not completed.\n"); |
8018 | return -E1000_ERR_RESET; | |
8019 | } | |
8020 | break; | |
8021 | } | |
8022 | ||
fd803241 JK |
8023 | /* PHY configuration from NVM just starts after EECD_AUTO_RD sets to high. |
8024 | * Need to wait for PHY configuration completion before accessing NVM | |
8025 | * and PHY. */ | |
8026 | if (hw->mac_type == e1000_82573) | |
f8ec4733 | 8027 | msleep(25); |
fd803241 | 8028 | |
2d7edb92 MC |
8029 | return E1000_SUCCESS; |
8030 | } | |
8031 | ||
8032 | /*************************************************************************** | |
8033 | * Checks if the PHY configuration is done | |
8034 | * | |
8035 | * hw: Struct containing variables accessed by shared code | |
8036 | * | |
8037 | * returns: - E1000_ERR_RESET if fail to reset MAC | |
8038 | * E1000_SUCCESS at any other case. | |
8039 | * | |
8040 | ***************************************************************************/ | |
406874a7 | 8041 | static s32 |
2d7edb92 MC |
8042 | e1000_get_phy_cfg_done(struct e1000_hw *hw) |
8043 | { | |
406874a7 JP |
8044 | s32 timeout = PHY_CFG_TIMEOUT; |
8045 | u32 cfg_mask = E1000_EEPROM_CFG_DONE; | |
868d5309 | 8046 | |
2d7edb92 MC |
8047 | DEBUGFUNC("e1000_get_phy_cfg_done"); |
8048 | ||
868d5309 MC |
8049 | switch (hw->mac_type) { |
8050 | default: | |
f8ec4733 | 8051 | mdelay(10); |
868d5309 | 8052 | break; |
6418ecc6 JK |
8053 | case e1000_80003es2lan: |
8054 | /* Separate *_CFG_DONE_* bit for each port */ | |
8055 | if (E1000_READ_REG(hw, STATUS) & E1000_STATUS_FUNC_1) | |
8056 | cfg_mask = E1000_EEPROM_CFG_DONE_PORT_1; | |
8057 | /* Fall Through */ | |
868d5309 MC |
8058 | case e1000_82571: |
8059 | case e1000_82572: | |
8060 | while (timeout) { | |
8061 | if (E1000_READ_REG(hw, EEMNGCTL) & cfg_mask) | |
8062 | break; | |
8063 | else | |
f8ec4733 | 8064 | msleep(1); |
868d5309 MC |
8065 | timeout--; |
8066 | } | |
868d5309 MC |
8067 | if (!timeout) { |
8068 | DEBUGOUT("MNG configuration cycle has not completed.\n"); | |
8069 | return -E1000_ERR_RESET; | |
8070 | } | |
8071 | break; | |
8072 | } | |
2d7edb92 MC |
8073 | |
8074 | return E1000_SUCCESS; | |
8075 | } | |
8076 | ||
8077 | /*************************************************************************** | |
8078 | * | |
8079 | * Using the combination of SMBI and SWESMBI semaphore bits when resetting | |
8080 | * adapter or Eeprom access. | |
8081 | * | |
8082 | * hw: Struct containing variables accessed by shared code | |
8083 | * | |
8084 | * returns: - E1000_ERR_EEPROM if fail to access EEPROM. | |
8085 | * E1000_SUCCESS at any other case. | |
8086 | * | |
8087 | ***************************************************************************/ | |
406874a7 | 8088 | static s32 |
2d7edb92 MC |
8089 | e1000_get_hw_eeprom_semaphore(struct e1000_hw *hw) |
8090 | { | |
406874a7 JP |
8091 | s32 timeout; |
8092 | u32 swsm; | |
2d7edb92 MC |
8093 | |
8094 | DEBUGFUNC("e1000_get_hw_eeprom_semaphore"); | |
8095 | ||
8fc897b0 | 8096 | if (!hw->eeprom_semaphore_present) |
2d7edb92 MC |
8097 | return E1000_SUCCESS; |
8098 | ||
6418ecc6 JK |
8099 | if (hw->mac_type == e1000_80003es2lan) { |
8100 | /* Get the SW semaphore. */ | |
8101 | if (e1000_get_software_semaphore(hw) != E1000_SUCCESS) | |
8102 | return -E1000_ERR_EEPROM; | |
8103 | } | |
2d7edb92 MC |
8104 | |
8105 | /* Get the FW semaphore. */ | |
8106 | timeout = hw->eeprom.word_size + 1; | |
8fc897b0 | 8107 | while (timeout) { |
2d7edb92 MC |
8108 | swsm = E1000_READ_REG(hw, SWSM); |
8109 | swsm |= E1000_SWSM_SWESMBI; | |
8110 | E1000_WRITE_REG(hw, SWSM, swsm); | |
8111 | /* if we managed to set the bit we got the semaphore. */ | |
8112 | swsm = E1000_READ_REG(hw, SWSM); | |
8fc897b0 | 8113 | if (swsm & E1000_SWSM_SWESMBI) |
2d7edb92 MC |
8114 | break; |
8115 | ||
8116 | udelay(50); | |
8117 | timeout--; | |
8118 | } | |
8119 | ||
8fc897b0 | 8120 | if (!timeout) { |
2d7edb92 MC |
8121 | /* Release semaphores */ |
8122 | e1000_put_hw_eeprom_semaphore(hw); | |
8123 | DEBUGOUT("Driver can't access the Eeprom - SWESMBI bit is set.\n"); | |
8124 | return -E1000_ERR_EEPROM; | |
8125 | } | |
8126 | ||
8127 | return E1000_SUCCESS; | |
8128 | } | |
8129 | ||
8130 | /*************************************************************************** | |
8131 | * This function clears HW semaphore bits. | |
8132 | * | |
8133 | * hw: Struct containing variables accessed by shared code | |
8134 | * | |
8135 | * returns: - None. | |
8136 | * | |
8137 | ***************************************************************************/ | |
3ad2cc67 | 8138 | static void |
2d7edb92 MC |
8139 | e1000_put_hw_eeprom_semaphore(struct e1000_hw *hw) |
8140 | { | |
406874a7 | 8141 | u32 swsm; |
2d7edb92 MC |
8142 | |
8143 | DEBUGFUNC("e1000_put_hw_eeprom_semaphore"); | |
8144 | ||
8fc897b0 | 8145 | if (!hw->eeprom_semaphore_present) |
2d7edb92 MC |
8146 | return; |
8147 | ||
8148 | swsm = E1000_READ_REG(hw, SWSM); | |
6418ecc6 JK |
8149 | if (hw->mac_type == e1000_80003es2lan) { |
8150 | /* Release both semaphores. */ | |
8151 | swsm &= ~(E1000_SWSM_SMBI | E1000_SWSM_SWESMBI); | |
8152 | } else | |
868d5309 | 8153 | swsm &= ~(E1000_SWSM_SWESMBI); |
2d7edb92 MC |
8154 | E1000_WRITE_REG(hw, SWSM, swsm); |
8155 | } | |
8156 | ||
6418ecc6 JK |
8157 | /*************************************************************************** |
8158 | * | |
8159 | * Obtaining software semaphore bit (SMBI) before resetting PHY. | |
8160 | * | |
8161 | * hw: Struct containing variables accessed by shared code | |
8162 | * | |
8163 | * returns: - E1000_ERR_RESET if fail to obtain semaphore. | |
8164 | * E1000_SUCCESS at any other case. | |
8165 | * | |
8166 | ***************************************************************************/ | |
406874a7 | 8167 | static s32 |
6418ecc6 JK |
8168 | e1000_get_software_semaphore(struct e1000_hw *hw) |
8169 | { | |
406874a7 JP |
8170 | s32 timeout = hw->eeprom.word_size + 1; |
8171 | u32 swsm; | |
6418ecc6 JK |
8172 | |
8173 | DEBUGFUNC("e1000_get_software_semaphore"); | |
8174 | ||
35574764 | 8175 | if (hw->mac_type != e1000_80003es2lan) { |
6418ecc6 | 8176 | return E1000_SUCCESS; |
35574764 | 8177 | } |
6418ecc6 | 8178 | |
8fc897b0 | 8179 | while (timeout) { |
6418ecc6 JK |
8180 | swsm = E1000_READ_REG(hw, SWSM); |
8181 | /* If SMBI bit cleared, it is now set and we hold the semaphore */ | |
8fc897b0 | 8182 | if (!(swsm & E1000_SWSM_SMBI)) |
6418ecc6 | 8183 | break; |
f8ec4733 | 8184 | mdelay(1); |
6418ecc6 JK |
8185 | timeout--; |
8186 | } | |
8187 | ||
8fc897b0 | 8188 | if (!timeout) { |
6418ecc6 JK |
8189 | DEBUGOUT("Driver can't access device - SMBI bit is set.\n"); |
8190 | return -E1000_ERR_RESET; | |
8191 | } | |
8192 | ||
8193 | return E1000_SUCCESS; | |
8194 | } | |
8195 | ||
8196 | /*************************************************************************** | |
8197 | * | |
8198 | * Release semaphore bit (SMBI). | |
8199 | * | |
8200 | * hw: Struct containing variables accessed by shared code | |
8201 | * | |
8202 | ***************************************************************************/ | |
e4c780b1 | 8203 | static void |
6418ecc6 JK |
8204 | e1000_release_software_semaphore(struct e1000_hw *hw) |
8205 | { | |
406874a7 | 8206 | u32 swsm; |
6418ecc6 JK |
8207 | |
8208 | DEBUGFUNC("e1000_release_software_semaphore"); | |
8209 | ||
35574764 | 8210 | if (hw->mac_type != e1000_80003es2lan) { |
6418ecc6 | 8211 | return; |
35574764 | 8212 | } |
6418ecc6 JK |
8213 | |
8214 | swsm = E1000_READ_REG(hw, SWSM); | |
8215 | /* Release the SW semaphores.*/ | |
8216 | swsm &= ~E1000_SWSM_SMBI; | |
8217 | E1000_WRITE_REG(hw, SWSM, swsm); | |
8218 | } | |
8219 | ||
2d7edb92 MC |
8220 | /****************************************************************************** |
8221 | * Checks if PHY reset is blocked due to SOL/IDER session, for example. | |
8222 | * Returning E1000_BLK_PHY_RESET isn't necessarily an error. But it's up to | |
8223 | * the caller to figure out how to deal with it. | |
8224 | * | |
8225 | * hw - Struct containing variables accessed by shared code | |
8226 | * | |
8227 | * returns: - E1000_BLK_PHY_RESET | |
8228 | * E1000_SUCCESS | |
8229 | * | |
8230 | *****************************************************************************/ | |
406874a7 | 8231 | s32 |
2d7edb92 MC |
8232 | e1000_check_phy_reset_block(struct e1000_hw *hw) |
8233 | { | |
406874a7 JP |
8234 | u32 manc = 0; |
8235 | u32 fwsm = 0; | |
cd94dd0b AK |
8236 | |
8237 | if (hw->mac_type == e1000_ich8lan) { | |
8238 | fwsm = E1000_READ_REG(hw, FWSM); | |
8239 | return (fwsm & E1000_FWSM_RSPCIPHY) ? E1000_SUCCESS | |
8240 | : E1000_BLK_PHY_RESET; | |
8241 | } | |
96838a40 JB |
8242 | |
8243 | if (hw->mac_type > e1000_82547_rev_2) | |
2d7edb92 MC |
8244 | manc = E1000_READ_REG(hw, MANC); |
8245 | return (manc & E1000_MANC_BLK_PHY_RST_ON_IDE) ? | |
35574764 | 8246 | E1000_BLK_PHY_RESET : E1000_SUCCESS; |
2d7edb92 MC |
8247 | } |
8248 | ||
406874a7 | 8249 | static u8 |
2d7edb92 MC |
8250 | e1000_arc_subsystem_valid(struct e1000_hw *hw) |
8251 | { | |
406874a7 | 8252 | u32 fwsm; |
2d7edb92 MC |
8253 | |
8254 | /* On 8257x silicon, registers in the range of 0x8800 - 0x8FFC | |
8255 | * may not be provided a DMA clock when no manageability features are | |
8256 | * enabled. We do not want to perform any reads/writes to these registers | |
8257 | * if this is the case. We read FWSM to determine the manageability mode. | |
8258 | */ | |
8259 | switch (hw->mac_type) { | |
868d5309 MC |
8260 | case e1000_82571: |
8261 | case e1000_82572: | |
2d7edb92 | 8262 | case e1000_82573: |
6418ecc6 | 8263 | case e1000_80003es2lan: |
2d7edb92 | 8264 | fwsm = E1000_READ_REG(hw, FWSM); |
8fc897b0 | 8265 | if ((fwsm & E1000_FWSM_MODE_MASK) != 0) |
c3033b01 | 8266 | return true; |
2d7edb92 | 8267 | break; |
cd94dd0b | 8268 | case e1000_ich8lan: |
c3033b01 | 8269 | return true; |
2d7edb92 MC |
8270 | default: |
8271 | break; | |
8272 | } | |
c3033b01 | 8273 | return false; |
2d7edb92 MC |
8274 | } |
8275 | ||
8276 | ||
d37ea5d5 AK |
8277 | /****************************************************************************** |
8278 | * Configure PCI-Ex no-snoop | |
8279 | * | |
8280 | * hw - Struct containing variables accessed by shared code. | |
8281 | * no_snoop - Bitmap of no-snoop events. | |
8282 | * | |
8283 | * returns: E1000_SUCCESS | |
8284 | * | |
8285 | *****************************************************************************/ | |
406874a7 JP |
8286 | static s32 |
8287 | e1000_set_pci_ex_no_snoop(struct e1000_hw *hw, u32 no_snoop) | |
d37ea5d5 | 8288 | { |
406874a7 | 8289 | u32 gcr_reg = 0; |
d37ea5d5 AK |
8290 | |
8291 | DEBUGFUNC("e1000_set_pci_ex_no_snoop"); | |
8292 | ||
8293 | if (hw->bus_type == e1000_bus_type_unknown) | |
8294 | e1000_get_bus_info(hw); | |
8295 | ||
8296 | if (hw->bus_type != e1000_bus_type_pci_express) | |
8297 | return E1000_SUCCESS; | |
8298 | ||
8299 | if (no_snoop) { | |
8300 | gcr_reg = E1000_READ_REG(hw, GCR); | |
8301 | gcr_reg &= ~(PCI_EX_NO_SNOOP_ALL); | |
8302 | gcr_reg |= no_snoop; | |
8303 | E1000_WRITE_REG(hw, GCR, gcr_reg); | |
8304 | } | |
8305 | if (hw->mac_type == e1000_ich8lan) { | |
406874a7 | 8306 | u32 ctrl_ext; |
d37ea5d5 AK |
8307 | |
8308 | E1000_WRITE_REG(hw, GCR, PCI_EX_82566_SNOOP_ALL); | |
8309 | ||
8310 | ctrl_ext = E1000_READ_REG(hw, CTRL_EXT); | |
8311 | ctrl_ext |= E1000_CTRL_EXT_RO_DIS; | |
8312 | E1000_WRITE_REG(hw, CTRL_EXT, ctrl_ext); | |
8313 | } | |
8314 | ||
8315 | return E1000_SUCCESS; | |
8316 | } | |
8317 | ||
8318 | /*************************************************************************** | |
8319 | * | |
8320 | * Get software semaphore FLAG bit (SWFLAG). | |
8321 | * SWFLAG is used to synchronize the access to all shared resource between | |
8322 | * SW, FW and HW. | |
8323 | * | |
8324 | * hw: Struct containing variables accessed by shared code | |
8325 | * | |
8326 | ***************************************************************************/ | |
406874a7 | 8327 | static s32 |
d37ea5d5 AK |
8328 | e1000_get_software_flag(struct e1000_hw *hw) |
8329 | { | |
406874a7 JP |
8330 | s32 timeout = PHY_CFG_TIMEOUT; |
8331 | u32 extcnf_ctrl; | |
d37ea5d5 AK |
8332 | |
8333 | DEBUGFUNC("e1000_get_software_flag"); | |
8334 | ||
8335 | if (hw->mac_type == e1000_ich8lan) { | |
8336 | while (timeout) { | |
8337 | extcnf_ctrl = E1000_READ_REG(hw, EXTCNF_CTRL); | |
8338 | extcnf_ctrl |= E1000_EXTCNF_CTRL_SWFLAG; | |
8339 | E1000_WRITE_REG(hw, EXTCNF_CTRL, extcnf_ctrl); | |
8340 | ||
8341 | extcnf_ctrl = E1000_READ_REG(hw, EXTCNF_CTRL); | |
8342 | if (extcnf_ctrl & E1000_EXTCNF_CTRL_SWFLAG) | |
8343 | break; | |
f8ec4733 | 8344 | mdelay(1); |
d37ea5d5 AK |
8345 | timeout--; |
8346 | } | |
8347 | ||
8348 | if (!timeout) { | |
8349 | DEBUGOUT("FW or HW locks the resource too long.\n"); | |
8350 | return -E1000_ERR_CONFIG; | |
8351 | } | |
8352 | } | |
8353 | ||
8354 | return E1000_SUCCESS; | |
8355 | } | |
8356 | ||
8357 | /*************************************************************************** | |
8358 | * | |
8359 | * Release software semaphore FLAG bit (SWFLAG). | |
8360 | * SWFLAG is used to synchronize the access to all shared resource between | |
8361 | * SW, FW and HW. | |
8362 | * | |
8363 | * hw: Struct containing variables accessed by shared code | |
8364 | * | |
8365 | ***************************************************************************/ | |
e4c780b1 | 8366 | static void |
d37ea5d5 AK |
8367 | e1000_release_software_flag(struct e1000_hw *hw) |
8368 | { | |
406874a7 | 8369 | u32 extcnf_ctrl; |
d37ea5d5 AK |
8370 | |
8371 | DEBUGFUNC("e1000_release_software_flag"); | |
8372 | ||
8373 | if (hw->mac_type == e1000_ich8lan) { | |
8374 | extcnf_ctrl= E1000_READ_REG(hw, EXTCNF_CTRL); | |
8375 | extcnf_ctrl &= ~E1000_EXTCNF_CTRL_SWFLAG; | |
8376 | E1000_WRITE_REG(hw, EXTCNF_CTRL, extcnf_ctrl); | |
8377 | } | |
8378 | ||
8379 | return; | |
8380 | } | |
8381 | ||
d37ea5d5 AK |
8382 | /****************************************************************************** |
8383 | * Reads a 16 bit word or words from the EEPROM using the ICH8's flash access | |
8384 | * register. | |
8385 | * | |
8386 | * hw - Struct containing variables accessed by shared code | |
8387 | * offset - offset of word in the EEPROM to read | |
8388 | * data - word read from the EEPROM | |
8389 | * words - number of words to read | |
8390 | *****************************************************************************/ | |
406874a7 JP |
8391 | static s32 |
8392 | e1000_read_eeprom_ich8(struct e1000_hw *hw, u16 offset, u16 words, | |
8393 | u16 *data) | |
d37ea5d5 | 8394 | { |
406874a7 JP |
8395 | s32 error = E1000_SUCCESS; |
8396 | u32 flash_bank = 0; | |
8397 | u32 act_offset = 0; | |
8398 | u32 bank_offset = 0; | |
8399 | u16 word = 0; | |
8400 | u16 i = 0; | |
d37ea5d5 AK |
8401 | |
8402 | /* We need to know which is the valid flash bank. In the event | |
8403 | * that we didn't allocate eeprom_shadow_ram, we may not be | |
8404 | * managing flash_bank. So it cannot be trusted and needs | |
8405 | * to be updated with each read. | |
8406 | */ | |
8407 | /* Value of bit 22 corresponds to the flash bank we're on. */ | |
8408 | flash_bank = (E1000_READ_REG(hw, EECD) & E1000_EECD_SEC1VAL) ? 1 : 0; | |
8409 | ||
8410 | /* Adjust offset appropriately if we're on bank 1 - adjust for word size */ | |
8411 | bank_offset = flash_bank * (hw->flash_bank_size * 2); | |
8412 | ||
8413 | error = e1000_get_software_flag(hw); | |
8414 | if (error != E1000_SUCCESS) | |
8415 | return error; | |
8416 | ||
8417 | for (i = 0; i < words; i++) { | |
8418 | if (hw->eeprom_shadow_ram != NULL && | |
c3033b01 | 8419 | hw->eeprom_shadow_ram[offset+i].modified) { |
d37ea5d5 AK |
8420 | data[i] = hw->eeprom_shadow_ram[offset+i].eeprom_word; |
8421 | } else { | |
8422 | /* The NVM part needs a byte offset, hence * 2 */ | |
8423 | act_offset = bank_offset + ((offset + i) * 2); | |
8424 | error = e1000_read_ich8_word(hw, act_offset, &word); | |
8425 | if (error != E1000_SUCCESS) | |
8426 | break; | |
8427 | data[i] = word; | |
8428 | } | |
8429 | } | |
8430 | ||
8431 | e1000_release_software_flag(hw); | |
8432 | ||
8433 | return error; | |
8434 | } | |
8435 | ||
8436 | /****************************************************************************** | |
8437 | * Writes a 16 bit word or words to the EEPROM using the ICH8's flash access | |
8438 | * register. Actually, writes are written to the shadow ram cache in the hw | |
8439 | * structure hw->e1000_shadow_ram. e1000_commit_shadow_ram flushes this to | |
8440 | * the NVM, which occurs when the NVM checksum is updated. | |
8441 | * | |
8442 | * hw - Struct containing variables accessed by shared code | |
8443 | * offset - offset of word in the EEPROM to write | |
8444 | * words - number of words to write | |
8445 | * data - words to write to the EEPROM | |
8446 | *****************************************************************************/ | |
406874a7 JP |
8447 | static s32 |
8448 | e1000_write_eeprom_ich8(struct e1000_hw *hw, u16 offset, u16 words, | |
8449 | u16 *data) | |
d37ea5d5 | 8450 | { |
406874a7 JP |
8451 | u32 i = 0; |
8452 | s32 error = E1000_SUCCESS; | |
d37ea5d5 AK |
8453 | |
8454 | error = e1000_get_software_flag(hw); | |
8455 | if (error != E1000_SUCCESS) | |
8456 | return error; | |
8457 | ||
8458 | /* A driver can write to the NVM only if it has eeprom_shadow_ram | |
8459 | * allocated. Subsequent reads to the modified words are read from | |
8460 | * this cached structure as well. Writes will only go into this | |
8461 | * cached structure unless it's followed by a call to | |
8462 | * e1000_update_eeprom_checksum() where it will commit the changes | |
8463 | * and clear the "modified" field. | |
8464 | */ | |
8465 | if (hw->eeprom_shadow_ram != NULL) { | |
8466 | for (i = 0; i < words; i++) { | |
8467 | if ((offset + i) < E1000_SHADOW_RAM_WORDS) { | |
c3033b01 | 8468 | hw->eeprom_shadow_ram[offset+i].modified = true; |
d37ea5d5 AK |
8469 | hw->eeprom_shadow_ram[offset+i].eeprom_word = data[i]; |
8470 | } else { | |
8471 | error = -E1000_ERR_EEPROM; | |
8472 | break; | |
8473 | } | |
8474 | } | |
8475 | } else { | |
8476 | /* Drivers have the option to not allocate eeprom_shadow_ram as long | |
8477 | * as they don't perform any NVM writes. An attempt in doing so | |
8478 | * will result in this error. | |
8479 | */ | |
8480 | error = -E1000_ERR_EEPROM; | |
8481 | } | |
8482 | ||
8483 | e1000_release_software_flag(hw); | |
8484 | ||
8485 | return error; | |
8486 | } | |
8487 | ||
8488 | /****************************************************************************** | |
8489 | * This function does initial flash setup so that a new read/write/erase cycle | |
8490 | * can be started. | |
8491 | * | |
8492 | * hw - The pointer to the hw structure | |
8493 | ****************************************************************************/ | |
406874a7 | 8494 | static s32 |
d37ea5d5 AK |
8495 | e1000_ich8_cycle_init(struct e1000_hw *hw) |
8496 | { | |
8497 | union ich8_hws_flash_status hsfsts; | |
406874a7 JP |
8498 | s32 error = E1000_ERR_EEPROM; |
8499 | s32 i = 0; | |
d37ea5d5 AK |
8500 | |
8501 | DEBUGFUNC("e1000_ich8_cycle_init"); | |
8502 | ||
2df7d59f | 8503 | hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS); |
d37ea5d5 AK |
8504 | |
8505 | /* May be check the Flash Des Valid bit in Hw status */ | |
8506 | if (hsfsts.hsf_status.fldesvalid == 0) { | |
8507 | DEBUGOUT("Flash descriptor invalid. SW Sequencing must be used."); | |
8508 | return error; | |
8509 | } | |
8510 | ||
8511 | /* Clear FCERR in Hw status by writing 1 */ | |
8512 | /* Clear DAEL in Hw status by writing a 1 */ | |
8513 | hsfsts.hsf_status.flcerr = 1; | |
8514 | hsfsts.hsf_status.dael = 1; | |
8515 | ||
2df7d59f | 8516 | E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS, hsfsts.regval); |
d37ea5d5 AK |
8517 | |
8518 | /* Either we should have a hardware SPI cycle in progress bit to check | |
8519 | * against, in order to start a new cycle or FDONE bit should be changed | |
8520 | * in the hardware so that it is 1 after harware reset, which can then be | |
8521 | * used as an indication whether a cycle is in progress or has been | |
8522 | * completed .. we should also have some software semaphore mechanism to | |
8523 | * guard FDONE or the cycle in progress bit so that two threads access to | |
8524 | * those bits can be sequentiallized or a way so that 2 threads dont | |
8525 | * start the cycle at the same time */ | |
8526 | ||
8527 | if (hsfsts.hsf_status.flcinprog == 0) { | |
8528 | /* There is no cycle running at present, so we can start a cycle */ | |
8529 | /* Begin by setting Flash Cycle Done. */ | |
8530 | hsfsts.hsf_status.flcdone = 1; | |
2df7d59f | 8531 | E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS, hsfsts.regval); |
d37ea5d5 AK |
8532 | error = E1000_SUCCESS; |
8533 | } else { | |
8534 | /* otherwise poll for sometime so the current cycle has a chance | |
8535 | * to end before giving up. */ | |
2df7d59f JK |
8536 | for (i = 0; i < ICH_FLASH_COMMAND_TIMEOUT; i++) { |
8537 | hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS); | |
d37ea5d5 AK |
8538 | if (hsfsts.hsf_status.flcinprog == 0) { |
8539 | error = E1000_SUCCESS; | |
8540 | break; | |
8541 | } | |
8542 | udelay(1); | |
8543 | } | |
8544 | if (error == E1000_SUCCESS) { | |
8545 | /* Successful in waiting for previous cycle to timeout, | |
8546 | * now set the Flash Cycle Done. */ | |
8547 | hsfsts.hsf_status.flcdone = 1; | |
2df7d59f | 8548 | E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS, hsfsts.regval); |
d37ea5d5 AK |
8549 | } else { |
8550 | DEBUGOUT("Flash controller busy, cannot get access"); | |
8551 | } | |
8552 | } | |
8553 | return error; | |
8554 | } | |
8555 | ||
8556 | /****************************************************************************** | |
8557 | * This function starts a flash cycle and waits for its completion | |
8558 | * | |
8559 | * hw - The pointer to the hw structure | |
8560 | ****************************************************************************/ | |
406874a7 JP |
8561 | static s32 |
8562 | e1000_ich8_flash_cycle(struct e1000_hw *hw, u32 timeout) | |
d37ea5d5 AK |
8563 | { |
8564 | union ich8_hws_flash_ctrl hsflctl; | |
8565 | union ich8_hws_flash_status hsfsts; | |
406874a7 JP |
8566 | s32 error = E1000_ERR_EEPROM; |
8567 | u32 i = 0; | |
d37ea5d5 AK |
8568 | |
8569 | /* Start a cycle by writing 1 in Flash Cycle Go in Hw Flash Control */ | |
2df7d59f | 8570 | hsflctl.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL); |
d37ea5d5 | 8571 | hsflctl.hsf_ctrl.flcgo = 1; |
2df7d59f | 8572 | E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL, hsflctl.regval); |
d37ea5d5 AK |
8573 | |
8574 | /* wait till FDONE bit is set to 1 */ | |
8575 | do { | |
2df7d59f | 8576 | hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS); |
d37ea5d5 AK |
8577 | if (hsfsts.hsf_status.flcdone == 1) |
8578 | break; | |
8579 | udelay(1); | |
8580 | i++; | |
8581 | } while (i < timeout); | |
8582 | if (hsfsts.hsf_status.flcdone == 1 && hsfsts.hsf_status.flcerr == 0) { | |
8583 | error = E1000_SUCCESS; | |
8584 | } | |
8585 | return error; | |
8586 | } | |
8587 | ||
8588 | /****************************************************************************** | |
8589 | * Reads a byte or word from the NVM using the ICH8 flash access registers. | |
8590 | * | |
8591 | * hw - The pointer to the hw structure | |
8592 | * index - The index of the byte or word to read. | |
8593 | * size - Size of data to read, 1=byte 2=word | |
8594 | * data - Pointer to the word to store the value read. | |
8595 | *****************************************************************************/ | |
406874a7 JP |
8596 | static s32 |
8597 | e1000_read_ich8_data(struct e1000_hw *hw, u32 index, | |
8598 | u32 size, u16* data) | |
d37ea5d5 AK |
8599 | { |
8600 | union ich8_hws_flash_status hsfsts; | |
8601 | union ich8_hws_flash_ctrl hsflctl; | |
406874a7 JP |
8602 | u32 flash_linear_address; |
8603 | u32 flash_data = 0; | |
8604 | s32 error = -E1000_ERR_EEPROM; | |
8605 | s32 count = 0; | |
d37ea5d5 AK |
8606 | |
8607 | DEBUGFUNC("e1000_read_ich8_data"); | |
8608 | ||
abec42a4 | 8609 | if (size < 1 || size > 2 || data == NULL || |
2df7d59f | 8610 | index > ICH_FLASH_LINEAR_ADDR_MASK) |
d37ea5d5 AK |
8611 | return error; |
8612 | ||
2df7d59f | 8613 | flash_linear_address = (ICH_FLASH_LINEAR_ADDR_MASK & index) + |
d37ea5d5 AK |
8614 | hw->flash_base_addr; |
8615 | ||
8616 | do { | |
8617 | udelay(1); | |
8618 | /* Steps */ | |
8619 | error = e1000_ich8_cycle_init(hw); | |
8620 | if (error != E1000_SUCCESS) | |
8621 | break; | |
8622 | ||
2df7d59f | 8623 | hsflctl.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL); |
d37ea5d5 AK |
8624 | /* 0b/1b corresponds to 1 or 2 byte size, respectively. */ |
8625 | hsflctl.hsf_ctrl.fldbcount = size - 1; | |
2df7d59f JK |
8626 | hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_READ; |
8627 | E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL, hsflctl.regval); | |
d37ea5d5 AK |
8628 | |
8629 | /* Write the last 24 bits of index into Flash Linear address field in | |
8630 | * Flash Address */ | |
8631 | /* TODO: TBD maybe check the index against the size of flash */ | |
8632 | ||
2df7d59f | 8633 | E1000_WRITE_ICH_FLASH_REG(hw, ICH_FLASH_FADDR, flash_linear_address); |
d37ea5d5 | 8634 | |
2df7d59f | 8635 | error = e1000_ich8_flash_cycle(hw, ICH_FLASH_COMMAND_TIMEOUT); |
d37ea5d5 AK |
8636 | |
8637 | /* Check if FCERR is set to 1, if set to 1, clear it and try the whole | |
8638 | * sequence a few more times, else read in (shift in) the Flash Data0, | |
8639 | * the order is least significant byte first msb to lsb */ | |
8640 | if (error == E1000_SUCCESS) { | |
2df7d59f | 8641 | flash_data = E1000_READ_ICH_FLASH_REG(hw, ICH_FLASH_FDATA0); |
d37ea5d5 | 8642 | if (size == 1) { |
406874a7 | 8643 | *data = (u8)(flash_data & 0x000000FF); |
d37ea5d5 | 8644 | } else if (size == 2) { |
406874a7 | 8645 | *data = (u16)(flash_data & 0x0000FFFF); |
d37ea5d5 AK |
8646 | } |
8647 | break; | |
8648 | } else { | |
8649 | /* If we've gotten here, then things are probably completely hosed, | |
8650 | * but if the error condition is detected, it won't hurt to give | |
2df7d59f | 8651 | * it another try...ICH_FLASH_CYCLE_REPEAT_COUNT times. |
d37ea5d5 | 8652 | */ |
2df7d59f | 8653 | hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS); |
d37ea5d5 AK |
8654 | if (hsfsts.hsf_status.flcerr == 1) { |
8655 | /* Repeat for some time before giving up. */ | |
8656 | continue; | |
8657 | } else if (hsfsts.hsf_status.flcdone == 0) { | |
8658 | DEBUGOUT("Timeout error - flash cycle did not complete."); | |
8659 | break; | |
8660 | } | |
8661 | } | |
2df7d59f | 8662 | } while (count++ < ICH_FLASH_CYCLE_REPEAT_COUNT); |
d37ea5d5 AK |
8663 | |
8664 | return error; | |
8665 | } | |
8666 | ||
8667 | /****************************************************************************** | |
8668 | * Writes One /two bytes to the NVM using the ICH8 flash access registers. | |
8669 | * | |
8670 | * hw - The pointer to the hw structure | |
8671 | * index - The index of the byte/word to read. | |
8672 | * size - Size of data to read, 1=byte 2=word | |
8673 | * data - The byte(s) to write to the NVM. | |
8674 | *****************************************************************************/ | |
406874a7 JP |
8675 | static s32 |
8676 | e1000_write_ich8_data(struct e1000_hw *hw, u32 index, u32 size, | |
8677 | u16 data) | |
d37ea5d5 AK |
8678 | { |
8679 | union ich8_hws_flash_status hsfsts; | |
8680 | union ich8_hws_flash_ctrl hsflctl; | |
406874a7 JP |
8681 | u32 flash_linear_address; |
8682 | u32 flash_data = 0; | |
8683 | s32 error = -E1000_ERR_EEPROM; | |
8684 | s32 count = 0; | |
d37ea5d5 AK |
8685 | |
8686 | DEBUGFUNC("e1000_write_ich8_data"); | |
8687 | ||
8688 | if (size < 1 || size > 2 || data > size * 0xff || | |
2df7d59f | 8689 | index > ICH_FLASH_LINEAR_ADDR_MASK) |
d37ea5d5 AK |
8690 | return error; |
8691 | ||
2df7d59f | 8692 | flash_linear_address = (ICH_FLASH_LINEAR_ADDR_MASK & index) + |
d37ea5d5 AK |
8693 | hw->flash_base_addr; |
8694 | ||
8695 | do { | |
8696 | udelay(1); | |
8697 | /* Steps */ | |
8698 | error = e1000_ich8_cycle_init(hw); | |
8699 | if (error != E1000_SUCCESS) | |
8700 | break; | |
8701 | ||
2df7d59f | 8702 | hsflctl.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL); |
d37ea5d5 AK |
8703 | /* 0b/1b corresponds to 1 or 2 byte size, respectively. */ |
8704 | hsflctl.hsf_ctrl.fldbcount = size -1; | |
2df7d59f JK |
8705 | hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_WRITE; |
8706 | E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL, hsflctl.regval); | |
d37ea5d5 AK |
8707 | |
8708 | /* Write the last 24 bits of index into Flash Linear address field in | |
8709 | * Flash Address */ | |
2df7d59f | 8710 | E1000_WRITE_ICH_FLASH_REG(hw, ICH_FLASH_FADDR, flash_linear_address); |
d37ea5d5 AK |
8711 | |
8712 | if (size == 1) | |
406874a7 | 8713 | flash_data = (u32)data & 0x00FF; |
d37ea5d5 | 8714 | else |
406874a7 | 8715 | flash_data = (u32)data; |
d37ea5d5 | 8716 | |
2df7d59f | 8717 | E1000_WRITE_ICH_FLASH_REG(hw, ICH_FLASH_FDATA0, flash_data); |
d37ea5d5 AK |
8718 | |
8719 | /* check if FCERR is set to 1 , if set to 1, clear it and try the whole | |
8720 | * sequence a few more times else done */ | |
2df7d59f | 8721 | error = e1000_ich8_flash_cycle(hw, ICH_FLASH_COMMAND_TIMEOUT); |
d37ea5d5 AK |
8722 | if (error == E1000_SUCCESS) { |
8723 | break; | |
8724 | } else { | |
8725 | /* If we're here, then things are most likely completely hosed, | |
8726 | * but if the error condition is detected, it won't hurt to give | |
2df7d59f | 8727 | * it another try...ICH_FLASH_CYCLE_REPEAT_COUNT times. |
d37ea5d5 | 8728 | */ |
2df7d59f | 8729 | hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS); |
d37ea5d5 AK |
8730 | if (hsfsts.hsf_status.flcerr == 1) { |
8731 | /* Repeat for some time before giving up. */ | |
8732 | continue; | |
8733 | } else if (hsfsts.hsf_status.flcdone == 0) { | |
8734 | DEBUGOUT("Timeout error - flash cycle did not complete."); | |
8735 | break; | |
8736 | } | |
8737 | } | |
2df7d59f | 8738 | } while (count++ < ICH_FLASH_CYCLE_REPEAT_COUNT); |
d37ea5d5 AK |
8739 | |
8740 | return error; | |
8741 | } | |
8742 | ||
8743 | /****************************************************************************** | |
8744 | * Reads a single byte from the NVM using the ICH8 flash access registers. | |
8745 | * | |
8746 | * hw - pointer to e1000_hw structure | |
8747 | * index - The index of the byte to read. | |
8748 | * data - Pointer to a byte to store the value read. | |
8749 | *****************************************************************************/ | |
406874a7 JP |
8750 | static s32 |
8751 | e1000_read_ich8_byte(struct e1000_hw *hw, u32 index, u8* data) | |
d37ea5d5 | 8752 | { |
406874a7 JP |
8753 | s32 status = E1000_SUCCESS; |
8754 | u16 word = 0; | |
d37ea5d5 AK |
8755 | |
8756 | status = e1000_read_ich8_data(hw, index, 1, &word); | |
8757 | if (status == E1000_SUCCESS) { | |
406874a7 | 8758 | *data = (u8)word; |
d37ea5d5 AK |
8759 | } |
8760 | ||
8761 | return status; | |
8762 | } | |
8763 | ||
8764 | /****************************************************************************** | |
8765 | * Writes a single byte to the NVM using the ICH8 flash access registers. | |
8766 | * Performs verification by reading back the value and then going through | |
8767 | * a retry algorithm before giving up. | |
8768 | * | |
8769 | * hw - pointer to e1000_hw structure | |
8770 | * index - The index of the byte to write. | |
8771 | * byte - The byte to write to the NVM. | |
8772 | *****************************************************************************/ | |
406874a7 JP |
8773 | static s32 |
8774 | e1000_verify_write_ich8_byte(struct e1000_hw *hw, u32 index, u8 byte) | |
d37ea5d5 | 8775 | { |
406874a7 JP |
8776 | s32 error = E1000_SUCCESS; |
8777 | s32 program_retries = 0; | |
d37ea5d5 | 8778 | |
2a88c173 | 8779 | DEBUGOUT2("Byte := %2.2X Offset := %d\n", byte, index); |
d37ea5d5 | 8780 | |
2a88c173 JK |
8781 | error = e1000_write_ich8_byte(hw, index, byte); |
8782 | ||
8783 | if (error != E1000_SUCCESS) { | |
8784 | for (program_retries = 0; program_retries < 100; program_retries++) { | |
8785 | DEBUGOUT2("Retrying \t Byte := %2.2X Offset := %d\n", byte, index); | |
8786 | error = e1000_write_ich8_byte(hw, index, byte); | |
8787 | udelay(100); | |
8788 | if (error == E1000_SUCCESS) | |
8789 | break; | |
8790 | } | |
d37ea5d5 | 8791 | } |
2a88c173 | 8792 | |
d37ea5d5 AK |
8793 | if (program_retries == 100) |
8794 | error = E1000_ERR_EEPROM; | |
8795 | ||
8796 | return error; | |
8797 | } | |
8798 | ||
8799 | /****************************************************************************** | |
8800 | * Writes a single byte to the NVM using the ICH8 flash access registers. | |
8801 | * | |
8802 | * hw - pointer to e1000_hw structure | |
8803 | * index - The index of the byte to read. | |
8804 | * data - The byte to write to the NVM. | |
8805 | *****************************************************************************/ | |
406874a7 JP |
8806 | static s32 |
8807 | e1000_write_ich8_byte(struct e1000_hw *hw, u32 index, u8 data) | |
d37ea5d5 | 8808 | { |
406874a7 JP |
8809 | s32 status = E1000_SUCCESS; |
8810 | u16 word = (u16)data; | |
d37ea5d5 AK |
8811 | |
8812 | status = e1000_write_ich8_data(hw, index, 1, word); | |
8813 | ||
8814 | return status; | |
8815 | } | |
8816 | ||
8817 | /****************************************************************************** | |
8818 | * Reads a word from the NVM using the ICH8 flash access registers. | |
8819 | * | |
8820 | * hw - pointer to e1000_hw structure | |
8821 | * index - The starting byte index of the word to read. | |
8822 | * data - Pointer to a word to store the value read. | |
8823 | *****************************************************************************/ | |
406874a7 JP |
8824 | static s32 |
8825 | e1000_read_ich8_word(struct e1000_hw *hw, u32 index, u16 *data) | |
d37ea5d5 | 8826 | { |
406874a7 | 8827 | s32 status = E1000_SUCCESS; |
d37ea5d5 AK |
8828 | status = e1000_read_ich8_data(hw, index, 2, data); |
8829 | return status; | |
8830 | } | |
8831 | ||
8832 | /****************************************************************************** | |
2a88c173 JK |
8833 | * Erases the bank specified. Each bank may be a 4, 8 or 64k block. Banks are 0 |
8834 | * based. | |
d37ea5d5 AK |
8835 | * |
8836 | * hw - pointer to e1000_hw structure | |
2a88c173 | 8837 | * bank - 0 for first bank, 1 for second bank |
d37ea5d5 | 8838 | * |
2a88c173 JK |
8839 | * Note that this function may actually erase as much as 8 or 64 KBytes. The |
8840 | * amount of NVM used in each bank is a *minimum* of 4 KBytes, but in fact the | |
8841 | * bank size may be 4, 8 or 64 KBytes | |
d37ea5d5 | 8842 | *****************************************************************************/ |
406874a7 JP |
8843 | static s32 |
8844 | e1000_erase_ich8_4k_segment(struct e1000_hw *hw, u32 bank) | |
d37ea5d5 AK |
8845 | { |
8846 | union ich8_hws_flash_status hsfsts; | |
8847 | union ich8_hws_flash_ctrl hsflctl; | |
406874a7 JP |
8848 | u32 flash_linear_address; |
8849 | s32 count = 0; | |
8850 | s32 error = E1000_ERR_EEPROM; | |
8851 | s32 iteration; | |
8852 | s32 sub_sector_size = 0; | |
8853 | s32 bank_size; | |
8854 | s32 j = 0; | |
8855 | s32 error_flag = 0; | |
d37ea5d5 | 8856 | |
2df7d59f | 8857 | hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS); |
d37ea5d5 AK |
8858 | |
8859 | /* Determine HW Sector size: Read BERASE bits of Hw flash Status register */ | |
8860 | /* 00: The Hw sector is 256 bytes, hence we need to erase 16 | |
8861 | * consecutive sectors. The start index for the nth Hw sector can be | |
2a88c173 | 8862 | * calculated as bank * 4096 + n * 256 |
d37ea5d5 AK |
8863 | * 01: The Hw sector is 4K bytes, hence we need to erase 1 sector. |
8864 | * The start index for the nth Hw sector can be calculated | |
2a88c173 JK |
8865 | * as bank * 4096 |
8866 | * 10: The HW sector is 8K bytes | |
8867 | * 11: The Hw sector size is 64K bytes */ | |
d37ea5d5 AK |
8868 | if (hsfsts.hsf_status.berasesz == 0x0) { |
8869 | /* Hw sector size 256 */ | |
2df7d59f JK |
8870 | sub_sector_size = ICH_FLASH_SEG_SIZE_256; |
8871 | bank_size = ICH_FLASH_SECTOR_SIZE; | |
8872 | iteration = ICH_FLASH_SECTOR_SIZE / ICH_FLASH_SEG_SIZE_256; | |
d37ea5d5 | 8873 | } else if (hsfsts.hsf_status.berasesz == 0x1) { |
2df7d59f | 8874 | bank_size = ICH_FLASH_SEG_SIZE_4K; |
d37ea5d5 AK |
8875 | iteration = 1; |
8876 | } else if (hsfsts.hsf_status.berasesz == 0x3) { | |
2df7d59f | 8877 | bank_size = ICH_FLASH_SEG_SIZE_64K; |
d37ea5d5 AK |
8878 | iteration = 1; |
8879 | } else { | |
8880 | return error; | |
8881 | } | |
8882 | ||
8883 | for (j = 0; j < iteration ; j++) { | |
8884 | do { | |
8885 | count++; | |
8886 | /* Steps */ | |
8887 | error = e1000_ich8_cycle_init(hw); | |
8888 | if (error != E1000_SUCCESS) { | |
8889 | error_flag = 1; | |
8890 | break; | |
8891 | } | |
8892 | ||
8893 | /* Write a value 11 (block Erase) in Flash Cycle field in Hw flash | |
8894 | * Control */ | |
2df7d59f JK |
8895 | hsflctl.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL); |
8896 | hsflctl.hsf_ctrl.flcycle = ICH_CYCLE_ERASE; | |
8897 | E1000_WRITE_ICH_FLASH_REG16(hw, ICH_FLASH_HSFCTL, hsflctl.regval); | |
d37ea5d5 AK |
8898 | |
8899 | /* Write the last 24 bits of an index within the block into Flash | |
8900 | * Linear address field in Flash Address. This probably needs to | |
2a88c173 JK |
8901 | * be calculated here based off the on-chip erase sector size and |
8902 | * the software bank size (4, 8 or 64 KBytes) */ | |
8903 | flash_linear_address = bank * bank_size + j * sub_sector_size; | |
d37ea5d5 | 8904 | flash_linear_address += hw->flash_base_addr; |
2df7d59f | 8905 | flash_linear_address &= ICH_FLASH_LINEAR_ADDR_MASK; |
d37ea5d5 | 8906 | |
2df7d59f | 8907 | E1000_WRITE_ICH_FLASH_REG(hw, ICH_FLASH_FADDR, flash_linear_address); |
d37ea5d5 | 8908 | |
2df7d59f | 8909 | error = e1000_ich8_flash_cycle(hw, ICH_FLASH_ERASE_TIMEOUT); |
d37ea5d5 AK |
8910 | /* Check if FCERR is set to 1. If 1, clear it and try the whole |
8911 | * sequence a few more times else Done */ | |
8912 | if (error == E1000_SUCCESS) { | |
8913 | break; | |
8914 | } else { | |
2df7d59f | 8915 | hsfsts.regval = E1000_READ_ICH_FLASH_REG16(hw, ICH_FLASH_HSFSTS); |
d37ea5d5 AK |
8916 | if (hsfsts.hsf_status.flcerr == 1) { |
8917 | /* repeat for some time before giving up */ | |
8918 | continue; | |
8919 | } else if (hsfsts.hsf_status.flcdone == 0) { | |
8920 | error_flag = 1; | |
8921 | break; | |
8922 | } | |
8923 | } | |
2df7d59f | 8924 | } while ((count < ICH_FLASH_CYCLE_REPEAT_COUNT) && !error_flag); |
d37ea5d5 AK |
8925 | if (error_flag == 1) |
8926 | break; | |
8927 | } | |
8928 | if (error_flag != 1) | |
8929 | error = E1000_SUCCESS; | |
8930 | return error; | |
8931 | } | |
8932 | ||
406874a7 | 8933 | static s32 |
d37ea5d5 | 8934 | e1000_init_lcd_from_nvm_config_region(struct e1000_hw *hw, |
406874a7 | 8935 | u32 cnf_base_addr, u32 cnf_size) |
d37ea5d5 | 8936 | { |
406874a7 JP |
8937 | u32 ret_val = E1000_SUCCESS; |
8938 | u16 word_addr, reg_data, reg_addr; | |
8939 | u16 i; | |
d37ea5d5 AK |
8940 | |
8941 | /* cnf_base_addr is in DWORD */ | |
406874a7 | 8942 | word_addr = (u16)(cnf_base_addr << 1); |
d37ea5d5 AK |
8943 | |
8944 | /* cnf_size is returned in size of dwords */ | |
8945 | for (i = 0; i < cnf_size; i++) { | |
8946 | ret_val = e1000_read_eeprom(hw, (word_addr + i*2), 1, ®_data); | |
8947 | if (ret_val) | |
8948 | return ret_val; | |
8949 | ||
8950 | ret_val = e1000_read_eeprom(hw, (word_addr + i*2 + 1), 1, ®_addr); | |
8951 | if (ret_val) | |
8952 | return ret_val; | |
8953 | ||
8954 | ret_val = e1000_get_software_flag(hw); | |
8955 | if (ret_val != E1000_SUCCESS) | |
8956 | return ret_val; | |
8957 | ||
406874a7 | 8958 | ret_val = e1000_write_phy_reg_ex(hw, (u32)reg_addr, reg_data); |
d37ea5d5 AK |
8959 | |
8960 | e1000_release_software_flag(hw); | |
8961 | } | |
8962 | ||
8963 | return ret_val; | |
8964 | } | |
8965 | ||
8966 | ||
2a88c173 JK |
8967 | /****************************************************************************** |
8968 | * This function initializes the PHY from the NVM on ICH8 platforms. This | |
8969 | * is needed due to an issue where the NVM configuration is not properly | |
8970 | * autoloaded after power transitions. Therefore, after each PHY reset, we | |
8971 | * will load the configuration data out of the NVM manually. | |
8972 | * | |
8973 | * hw: Struct containing variables accessed by shared code | |
8974 | *****************************************************************************/ | |
406874a7 | 8975 | static s32 |
d37ea5d5 AK |
8976 | e1000_init_lcd_from_nvm(struct e1000_hw *hw) |
8977 | { | |
406874a7 | 8978 | u32 reg_data, cnf_base_addr, cnf_size, ret_val, loop; |
d37ea5d5 AK |
8979 | |
8980 | if (hw->phy_type != e1000_phy_igp_3) | |
8981 | return E1000_SUCCESS; | |
8982 | ||
8983 | /* Check if SW needs configure the PHY */ | |
8984 | reg_data = E1000_READ_REG(hw, FEXTNVM); | |
8985 | if (!(reg_data & FEXTNVM_SW_CONFIG)) | |
8986 | return E1000_SUCCESS; | |
8987 | ||
8988 | /* Wait for basic configuration completes before proceeding*/ | |
8989 | loop = 0; | |
8990 | do { | |
8991 | reg_data = E1000_READ_REG(hw, STATUS) & E1000_STATUS_LAN_INIT_DONE; | |
8992 | udelay(100); | |
8993 | loop++; | |
8994 | } while ((!reg_data) && (loop < 50)); | |
8995 | ||
8996 | /* Clear the Init Done bit for the next init event */ | |
8997 | reg_data = E1000_READ_REG(hw, STATUS); | |
8998 | reg_data &= ~E1000_STATUS_LAN_INIT_DONE; | |
8999 | E1000_WRITE_REG(hw, STATUS, reg_data); | |
9000 | ||
9001 | /* Make sure HW does not configure LCD from PHY extended configuration | |
9002 | before SW configuration */ | |
9003 | reg_data = E1000_READ_REG(hw, EXTCNF_CTRL); | |
9004 | if ((reg_data & E1000_EXTCNF_CTRL_LCD_WRITE_ENABLE) == 0x0000) { | |
9005 | reg_data = E1000_READ_REG(hw, EXTCNF_SIZE); | |
9006 | cnf_size = reg_data & E1000_EXTCNF_SIZE_EXT_PCIE_LENGTH; | |
9007 | cnf_size >>= 16; | |
9008 | if (cnf_size) { | |
9009 | reg_data = E1000_READ_REG(hw, EXTCNF_CTRL); | |
9010 | cnf_base_addr = reg_data & E1000_EXTCNF_CTRL_EXT_CNF_POINTER; | |
9011 | /* cnf_base_addr is in DWORD */ | |
9012 | cnf_base_addr >>= 16; | |
9013 | ||
9014 | /* Configure LCD from extended configuration region. */ | |
9015 | ret_val = e1000_init_lcd_from_nvm_config_region(hw, cnf_base_addr, | |
9016 | cnf_size); | |
9017 | if (ret_val) | |
9018 | return ret_val; | |
9019 | } | |
9020 | } | |
9021 | ||
9022 | return E1000_SUCCESS; | |
9023 | } | |
9024 |