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8199d3a7 CL |
1 | /***************************************************************************** |
2 | * * | |
3 | * File: pm3393.c * | |
559fb51b SB |
4 | * $Revision: 1.16 $ * |
5 | * $Date: 2005/05/14 00:59:32 $ * | |
8199d3a7 CL |
6 | * Description: * |
7 | * PMC/SIERRA (pm3393) MAC-PHY functionality. * | |
8 | * part of the Chelsio 10Gb Ethernet Driver. * | |
9 | * * | |
10 | * This program is free software; you can redistribute it and/or modify * | |
11 | * it under the terms of the GNU General Public License, version 2, as * | |
12 | * published by the Free Software Foundation. * | |
13 | * * | |
14 | * You should have received a copy of the GNU General Public License along * | |
15 | * with this program; if not, write to the Free Software Foundation, Inc., * | |
16 | * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. * | |
17 | * * | |
18 | * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED * | |
19 | * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF * | |
20 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. * | |
21 | * * | |
22 | * http://www.chelsio.com * | |
23 | * * | |
24 | * Copyright (c) 2003 - 2005 Chelsio Communications, Inc. * | |
25 | * All rights reserved. * | |
26 | * * | |
27 | * Maintainers: maintainers@chelsio.com * | |
28 | * * | |
29 | * Authors: Dimitrios Michailidis <dm@chelsio.com> * | |
30 | * Tina Yang <tainay@chelsio.com> * | |
31 | * Felix Marti <felix@chelsio.com> * | |
32 | * Scott Bardone <sbardone@chelsio.com> * | |
33 | * Kurt Ottaway <kottaway@chelsio.com> * | |
34 | * Frank DiMambro <frank@chelsio.com> * | |
35 | * * | |
36 | * History: * | |
37 | * * | |
38 | ****************************************************************************/ | |
39 | ||
40 | #include "common.h" | |
41 | #include "regs.h" | |
42 | #include "gmac.h" | |
43 | #include "elmer0.h" | |
44 | #include "suni1x10gexp_regs.h" | |
45 | ||
57834ca1 SH |
46 | #include <linux/crc32.h> |
47 | ||
e0348b9a | 48 | #define OFFSET(REG_ADDR) ((REG_ADDR) << 2) |
8199d3a7 CL |
49 | |
50 | /* Max frame size PM3393 can handle. Includes Ethernet header and CRC. */ | |
51 | #define MAX_FRAME_SIZE 9600 | |
52 | ||
53 | #define IPG 12 | |
54 | #define TXXG_CONF1_VAL ((IPG << SUNI1x10GEXP_BITOFF_TXXG_IPGT) | \ | |
55 | SUNI1x10GEXP_BITMSK_TXXG_32BIT_ALIGN | SUNI1x10GEXP_BITMSK_TXXG_CRCEN | \ | |
56 | SUNI1x10GEXP_BITMSK_TXXG_PADEN) | |
57 | #define RXXG_CONF1_VAL (SUNI1x10GEXP_BITMSK_RXXG_PUREP | 0x14 | \ | |
58 | SUNI1x10GEXP_BITMSK_RXXG_FLCHK | SUNI1x10GEXP_BITMSK_RXXG_CRC_STRIP) | |
59 | ||
60 | /* Update statistics every 15 minutes */ | |
61 | #define STATS_TICK_SECS (15 * 60) | |
62 | ||
63 | enum { /* RMON registers */ | |
64 | RxOctetsReceivedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_1_LOW, | |
65 | RxUnicastFramesReceivedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_4_LOW, | |
66 | RxMulticastFramesReceivedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_5_LOW, | |
67 | RxBroadcastFramesReceivedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_6_LOW, | |
68 | RxPAUSEMACCtrlFramesReceived = SUNI1x10GEXP_REG_MSTAT_COUNTER_8_LOW, | |
69 | RxFrameCheckSequenceErrors = SUNI1x10GEXP_REG_MSTAT_COUNTER_10_LOW, | |
70 | RxFramesLostDueToInternalMACErrors = SUNI1x10GEXP_REG_MSTAT_COUNTER_11_LOW, | |
71 | RxSymbolErrors = SUNI1x10GEXP_REG_MSTAT_COUNTER_12_LOW, | |
72 | RxInRangeLengthErrors = SUNI1x10GEXP_REG_MSTAT_COUNTER_13_LOW, | |
73 | RxFramesTooLongErrors = SUNI1x10GEXP_REG_MSTAT_COUNTER_15_LOW, | |
74 | RxJabbers = SUNI1x10GEXP_REG_MSTAT_COUNTER_16_LOW, | |
75 | RxFragments = SUNI1x10GEXP_REG_MSTAT_COUNTER_17_LOW, | |
76 | RxUndersizedFrames = SUNI1x10GEXP_REG_MSTAT_COUNTER_18_LOW, | |
f1d3d38a SH |
77 | RxJumboFramesReceivedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_25_LOW, |
78 | RxJumboOctetsReceivedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_26_LOW, | |
8199d3a7 CL |
79 | |
80 | TxOctetsTransmittedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_33_LOW, | |
81 | TxFramesLostDueToInternalMACTransmissionError = SUNI1x10GEXP_REG_MSTAT_COUNTER_35_LOW, | |
82 | TxTransmitSystemError = SUNI1x10GEXP_REG_MSTAT_COUNTER_36_LOW, | |
83 | TxUnicastFramesTransmittedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_38_LOW, | |
84 | TxMulticastFramesTransmittedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_40_LOW, | |
85 | TxBroadcastFramesTransmittedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_42_LOW, | |
f1d3d38a SH |
86 | TxPAUSEMACCtrlFramesTransmitted = SUNI1x10GEXP_REG_MSTAT_COUNTER_43_LOW, |
87 | TxJumboFramesReceivedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_51_LOW, | |
88 | TxJumboOctetsReceivedOK = SUNI1x10GEXP_REG_MSTAT_COUNTER_52_LOW | |
8199d3a7 CL |
89 | }; |
90 | ||
91 | struct _cmac_instance { | |
92 | u8 enabled; | |
93 | u8 fc; | |
94 | u8 mac_addr[6]; | |
95 | }; | |
96 | ||
97 | static int pmread(struct cmac *cmac, u32 reg, u32 * data32) | |
98 | { | |
99 | t1_tpi_read(cmac->adapter, OFFSET(reg), data32); | |
100 | return 0; | |
101 | } | |
102 | ||
103 | static int pmwrite(struct cmac *cmac, u32 reg, u32 data32) | |
104 | { | |
105 | t1_tpi_write(cmac->adapter, OFFSET(reg), data32); | |
106 | return 0; | |
107 | } | |
108 | ||
109 | /* Port reset. */ | |
110 | static int pm3393_reset(struct cmac *cmac) | |
111 | { | |
112 | return 0; | |
113 | } | |
114 | ||
115 | /* | |
116 | * Enable interrupts for the PM3393 | |
a7377a50 SH |
117 | * |
118 | * 1. Enable PM3393 BLOCK interrupts. | |
119 | * 2. Enable PM3393 Master Interrupt bit(INTE) | |
120 | * 3. Enable ELMER's PM3393 bit. | |
121 | * 4. Enable Terminator external interrupt. | |
122 | */ | |
8199d3a7 CL |
123 | static int pm3393_interrupt_enable(struct cmac *cmac) |
124 | { | |
125 | u32 pl_intr; | |
126 | ||
127 | /* PM3393 - Enabling all hardware block interrupts. | |
128 | */ | |
129 | pmwrite(cmac, SUNI1x10GEXP_REG_SERDES_3125_INTERRUPT_ENABLE, 0xffff); | |
130 | pmwrite(cmac, SUNI1x10GEXP_REG_XRF_INTERRUPT_ENABLE, 0xffff); | |
131 | pmwrite(cmac, SUNI1x10GEXP_REG_XRF_DIAG_INTERRUPT_ENABLE, 0xffff); | |
132 | pmwrite(cmac, SUNI1x10GEXP_REG_RXOAM_INTERRUPT_ENABLE, 0xffff); | |
133 | ||
134 | /* Don't interrupt on statistics overflow, we are polling */ | |
135 | pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_0, 0); | |
136 | pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_1, 0); | |
137 | pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_2, 0); | |
138 | pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_3, 0); | |
139 | ||
140 | pmwrite(cmac, SUNI1x10GEXP_REG_IFLX_FIFO_OVERFLOW_ENABLE, 0xffff); | |
141 | pmwrite(cmac, SUNI1x10GEXP_REG_PL4ODP_INTERRUPT_MASK, 0xffff); | |
142 | pmwrite(cmac, SUNI1x10GEXP_REG_XTEF_INTERRUPT_ENABLE, 0xffff); | |
143 | pmwrite(cmac, SUNI1x10GEXP_REG_TXOAM_INTERRUPT_ENABLE, 0xffff); | |
144 | pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_CONFIG_3, 0xffff); | |
145 | pmwrite(cmac, SUNI1x10GEXP_REG_PL4IO_LOCK_DETECT_MASK, 0xffff); | |
146 | pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_CONFIG_3, 0xffff); | |
147 | pmwrite(cmac, SUNI1x10GEXP_REG_PL4IDU_INTERRUPT_MASK, 0xffff); | |
148 | pmwrite(cmac, SUNI1x10GEXP_REG_EFLX_FIFO_OVERFLOW_ERROR_ENABLE, 0xffff); | |
149 | ||
150 | /* PM3393 - Global interrupt enable | |
151 | */ | |
152 | /* TBD XXX Disable for now until we figure out why error interrupts keep asserting. */ | |
153 | pmwrite(cmac, SUNI1x10GEXP_REG_GLOBAL_INTERRUPT_ENABLE, | |
154 | 0 /*SUNI1x10GEXP_BITMSK_TOP_INTE */ ); | |
155 | ||
156 | /* TERMINATOR - PL_INTERUPTS_EXT */ | |
559fb51b | 157 | pl_intr = readl(cmac->adapter->regs + A_PL_ENABLE); |
8199d3a7 | 158 | pl_intr |= F_PL_INTR_EXT; |
559fb51b | 159 | writel(pl_intr, cmac->adapter->regs + A_PL_ENABLE); |
8199d3a7 CL |
160 | return 0; |
161 | } | |
162 | ||
163 | static int pm3393_interrupt_disable(struct cmac *cmac) | |
164 | { | |
165 | u32 elmer; | |
166 | ||
167 | /* PM3393 - Enabling HW interrupt blocks. */ | |
168 | pmwrite(cmac, SUNI1x10GEXP_REG_SERDES_3125_INTERRUPT_ENABLE, 0); | |
169 | pmwrite(cmac, SUNI1x10GEXP_REG_XRF_INTERRUPT_ENABLE, 0); | |
170 | pmwrite(cmac, SUNI1x10GEXP_REG_XRF_DIAG_INTERRUPT_ENABLE, 0); | |
171 | pmwrite(cmac, SUNI1x10GEXP_REG_RXOAM_INTERRUPT_ENABLE, 0); | |
172 | pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_0, 0); | |
173 | pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_1, 0); | |
174 | pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_2, 0); | |
175 | pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_INTERRUPT_MASK_3, 0); | |
176 | pmwrite(cmac, SUNI1x10GEXP_REG_IFLX_FIFO_OVERFLOW_ENABLE, 0); | |
177 | pmwrite(cmac, SUNI1x10GEXP_REG_PL4ODP_INTERRUPT_MASK, 0); | |
178 | pmwrite(cmac, SUNI1x10GEXP_REG_XTEF_INTERRUPT_ENABLE, 0); | |
179 | pmwrite(cmac, SUNI1x10GEXP_REG_TXOAM_INTERRUPT_ENABLE, 0); | |
180 | pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_CONFIG_3, 0); | |
181 | pmwrite(cmac, SUNI1x10GEXP_REG_PL4IO_LOCK_DETECT_MASK, 0); | |
182 | pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_CONFIG_3, 0); | |
183 | pmwrite(cmac, SUNI1x10GEXP_REG_PL4IDU_INTERRUPT_MASK, 0); | |
184 | pmwrite(cmac, SUNI1x10GEXP_REG_EFLX_FIFO_OVERFLOW_ERROR_ENABLE, 0); | |
185 | ||
186 | /* PM3393 - Global interrupt enable */ | |
187 | pmwrite(cmac, SUNI1x10GEXP_REG_GLOBAL_INTERRUPT_ENABLE, 0); | |
188 | ||
189 | /* ELMER - External chip interrupts. */ | |
190 | t1_tpi_read(cmac->adapter, A_ELMER0_INT_ENABLE, &elmer); | |
191 | elmer &= ~ELMER0_GP_BIT1; | |
192 | t1_tpi_write(cmac->adapter, A_ELMER0_INT_ENABLE, elmer); | |
193 | ||
194 | /* TERMINATOR - PL_INTERUPTS_EXT */ | |
195 | /* DO NOT DISABLE TERMINATOR's EXTERNAL INTERRUPTS. ANOTHER CHIP | |
196 | * COULD WANT THEM ENABLED. We disable PM3393 at the ELMER level. | |
197 | */ | |
198 | ||
199 | return 0; | |
200 | } | |
201 | ||
202 | static int pm3393_interrupt_clear(struct cmac *cmac) | |
203 | { | |
204 | u32 elmer; | |
205 | u32 pl_intr; | |
206 | u32 val32; | |
207 | ||
208 | /* PM3393 - Clearing HW interrupt blocks. Note, this assumes | |
209 | * bit WCIMODE=0 for a clear-on-read. | |
210 | */ | |
211 | pmread(cmac, SUNI1x10GEXP_REG_SERDES_3125_INTERRUPT_STATUS, &val32); | |
212 | pmread(cmac, SUNI1x10GEXP_REG_XRF_INTERRUPT_STATUS, &val32); | |
213 | pmread(cmac, SUNI1x10GEXP_REG_XRF_DIAG_INTERRUPT_STATUS, &val32); | |
214 | pmread(cmac, SUNI1x10GEXP_REG_RXOAM_INTERRUPT_STATUS, &val32); | |
215 | pmread(cmac, SUNI1x10GEXP_REG_PL4ODP_INTERRUPT, &val32); | |
216 | pmread(cmac, SUNI1x10GEXP_REG_XTEF_INTERRUPT_STATUS, &val32); | |
217 | pmread(cmac, SUNI1x10GEXP_REG_IFLX_FIFO_OVERFLOW_INTERRUPT, &val32); | |
218 | pmread(cmac, SUNI1x10GEXP_REG_TXOAM_INTERRUPT_STATUS, &val32); | |
219 | pmread(cmac, SUNI1x10GEXP_REG_RXXG_INTERRUPT, &val32); | |
220 | pmread(cmac, SUNI1x10GEXP_REG_TXXG_INTERRUPT, &val32); | |
221 | pmread(cmac, SUNI1x10GEXP_REG_PL4IDU_INTERRUPT, &val32); | |
222 | pmread(cmac, SUNI1x10GEXP_REG_EFLX_FIFO_OVERFLOW_ERROR_INDICATION, | |
223 | &val32); | |
224 | pmread(cmac, SUNI1x10GEXP_REG_PL4IO_LOCK_DETECT_STATUS, &val32); | |
225 | pmread(cmac, SUNI1x10GEXP_REG_PL4IO_LOCK_DETECT_CHANGE, &val32); | |
226 | ||
227 | /* PM3393 - Global interrupt status | |
228 | */ | |
229 | pmread(cmac, SUNI1x10GEXP_REG_MASTER_INTERRUPT_STATUS, &val32); | |
230 | ||
231 | /* ELMER - External chip interrupts. | |
232 | */ | |
233 | t1_tpi_read(cmac->adapter, A_ELMER0_INT_CAUSE, &elmer); | |
234 | elmer |= ELMER0_GP_BIT1; | |
235 | t1_tpi_write(cmac->adapter, A_ELMER0_INT_CAUSE, elmer); | |
236 | ||
237 | /* TERMINATOR - PL_INTERUPTS_EXT | |
238 | */ | |
559fb51b | 239 | pl_intr = readl(cmac->adapter->regs + A_PL_CAUSE); |
8199d3a7 | 240 | pl_intr |= F_PL_INTR_EXT; |
559fb51b | 241 | writel(pl_intr, cmac->adapter->regs + A_PL_CAUSE); |
8199d3a7 CL |
242 | |
243 | return 0; | |
244 | } | |
245 | ||
246 | /* Interrupt handler */ | |
247 | static int pm3393_interrupt_handler(struct cmac *cmac) | |
248 | { | |
249 | u32 master_intr_status; | |
a7377a50 | 250 | |
8199d3a7 CL |
251 | /* Read the master interrupt status register. */ |
252 | pmread(cmac, SUNI1x10GEXP_REG_MASTER_INTERRUPT_STATUS, | |
253 | &master_intr_status); | |
f1d3d38a SH |
254 | CH_DBG(cmac->adapter, INTR, "PM3393 intr cause 0x%x\n", |
255 | master_intr_status); | |
8199d3a7 CL |
256 | |
257 | /* TBD XXX Lets just clear everything for now */ | |
258 | pm3393_interrupt_clear(cmac); | |
259 | ||
260 | return 0; | |
261 | } | |
262 | ||
263 | static int pm3393_enable(struct cmac *cmac, int which) | |
264 | { | |
265 | if (which & MAC_DIRECTION_RX) | |
266 | pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_CONFIG_1, | |
267 | (RXXG_CONF1_VAL | SUNI1x10GEXP_BITMSK_RXXG_RXEN)); | |
268 | ||
269 | if (which & MAC_DIRECTION_TX) { | |
270 | u32 val = TXXG_CONF1_VAL | SUNI1x10GEXP_BITMSK_TXXG_TXEN0; | |
271 | ||
272 | if (cmac->instance->fc & PAUSE_RX) | |
273 | val |= SUNI1x10GEXP_BITMSK_TXXG_FCRX; | |
274 | if (cmac->instance->fc & PAUSE_TX) | |
275 | val |= SUNI1x10GEXP_BITMSK_TXXG_FCTX; | |
276 | pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_CONFIG_1, val); | |
277 | } | |
278 | ||
279 | cmac->instance->enabled |= which; | |
280 | return 0; | |
281 | } | |
282 | ||
283 | static int pm3393_enable_port(struct cmac *cmac, int which) | |
284 | { | |
285 | /* Clear port statistics */ | |
286 | pmwrite(cmac, SUNI1x10GEXP_REG_MSTAT_CONTROL, | |
287 | SUNI1x10GEXP_BITMSK_MSTAT_CLEAR); | |
288 | udelay(2); | |
289 | memset(&cmac->stats, 0, sizeof(struct cmac_statistics)); | |
290 | ||
291 | pm3393_enable(cmac, which); | |
292 | ||
293 | /* | |
294 | * XXX This should be done by the PHY and preferrably not at all. | |
295 | * The PHY doesn't give us link status indication on its own so have | |
296 | * the link management code query it instead. | |
297 | */ | |
f1d3d38a | 298 | t1_link_changed(cmac->adapter, 0); |
8199d3a7 CL |
299 | return 0; |
300 | } | |
301 | ||
302 | static int pm3393_disable(struct cmac *cmac, int which) | |
303 | { | |
304 | if (which & MAC_DIRECTION_RX) | |
305 | pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_CONFIG_1, RXXG_CONF1_VAL); | |
306 | if (which & MAC_DIRECTION_TX) | |
307 | pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_CONFIG_1, TXXG_CONF1_VAL); | |
308 | ||
309 | /* | |
310 | * The disable is graceful. Give the PM3393 time. Can't wait very | |
311 | * long here, we may be holding locks. | |
312 | */ | |
313 | udelay(20); | |
314 | ||
315 | cmac->instance->enabled &= ~which; | |
316 | return 0; | |
317 | } | |
318 | ||
319 | static int pm3393_loopback_enable(struct cmac *cmac) | |
320 | { | |
321 | return 0; | |
322 | } | |
323 | ||
324 | static int pm3393_loopback_disable(struct cmac *cmac) | |
325 | { | |
326 | return 0; | |
327 | } | |
328 | ||
329 | static int pm3393_set_mtu(struct cmac *cmac, int mtu) | |
330 | { | |
331 | int enabled = cmac->instance->enabled; | |
332 | ||
333 | /* MAX_FRAME_SIZE includes header + FCS, mtu doesn't */ | |
334 | mtu += 14 + 4; | |
335 | if (mtu > MAX_FRAME_SIZE) | |
336 | return -EINVAL; | |
337 | ||
338 | /* Disable Rx/Tx MAC before configuring it. */ | |
339 | if (enabled) | |
340 | pm3393_disable(cmac, MAC_DIRECTION_RX | MAC_DIRECTION_TX); | |
341 | ||
342 | pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MAX_FRAME_LENGTH, mtu); | |
343 | pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_MAX_FRAME_SIZE, mtu); | |
344 | ||
345 | if (enabled) | |
346 | pm3393_enable(cmac, enabled); | |
347 | return 0; | |
348 | } | |
349 | ||
8199d3a7 CL |
350 | static int pm3393_set_rx_mode(struct cmac *cmac, struct t1_rx_mode *rm) |
351 | { | |
352 | int enabled = cmac->instance->enabled & MAC_DIRECTION_RX; | |
353 | u32 rx_mode; | |
354 | ||
355 | /* Disable MAC RX before reconfiguring it */ | |
356 | if (enabled) | |
357 | pm3393_disable(cmac, MAC_DIRECTION_RX); | |
358 | ||
359 | pmread(cmac, SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_2, &rx_mode); | |
360 | rx_mode &= ~(SUNI1x10GEXP_BITMSK_RXXG_PMODE | | |
361 | SUNI1x10GEXP_BITMSK_RXXG_MHASH_EN); | |
362 | pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_2, | |
363 | (u16)rx_mode); | |
364 | ||
365 | if (t1_rx_mode_promisc(rm)) { | |
366 | /* Promiscuous mode. */ | |
367 | rx_mode |= SUNI1x10GEXP_BITMSK_RXXG_PMODE; | |
368 | } | |
369 | if (t1_rx_mode_allmulti(rm)) { | |
370 | /* Accept all multicast. */ | |
371 | pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_LOW, 0xffff); | |
372 | pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_MIDLOW, 0xffff); | |
373 | pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_MIDHIGH, 0xffff); | |
374 | pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_HIGH, 0xffff); | |
375 | rx_mode |= SUNI1x10GEXP_BITMSK_RXXG_MHASH_EN; | |
376 | } else if (t1_rx_mode_mc_cnt(rm)) { | |
377 | /* Accept one or more multicast(s). */ | |
378 | u8 *addr; | |
379 | int bit; | |
380 | u16 mc_filter[4] = { 0, }; | |
381 | ||
382 | while ((addr = t1_get_next_mcaddr(rm))) { | |
57834ca1 | 383 | bit = (ether_crc(ETH_ALEN, addr) >> 23) & 0x3f; /* bit[23:28] */ |
8199d3a7 CL |
384 | mc_filter[bit >> 4] |= 1 << (bit & 0xf); |
385 | } | |
386 | pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_LOW, mc_filter[0]); | |
387 | pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_MIDLOW, mc_filter[1]); | |
388 | pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_MIDHIGH, mc_filter[2]); | |
389 | pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_MULTICAST_HASH_HIGH, mc_filter[3]); | |
390 | rx_mode |= SUNI1x10GEXP_BITMSK_RXXG_MHASH_EN; | |
391 | } | |
392 | ||
393 | pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_2, (u16)rx_mode); | |
394 | ||
395 | if (enabled) | |
396 | pm3393_enable(cmac, MAC_DIRECTION_RX); | |
397 | ||
398 | return 0; | |
399 | } | |
400 | ||
401 | static int pm3393_get_speed_duplex_fc(struct cmac *cmac, int *speed, | |
402 | int *duplex, int *fc) | |
403 | { | |
404 | if (speed) | |
405 | *speed = SPEED_10000; | |
406 | if (duplex) | |
407 | *duplex = DUPLEX_FULL; | |
408 | if (fc) | |
409 | *fc = cmac->instance->fc; | |
410 | return 0; | |
411 | } | |
412 | ||
413 | static int pm3393_set_speed_duplex_fc(struct cmac *cmac, int speed, int duplex, | |
414 | int fc) | |
415 | { | |
416 | if (speed >= 0 && speed != SPEED_10000) | |
417 | return -1; | |
418 | if (duplex >= 0 && duplex != DUPLEX_FULL) | |
419 | return -1; | |
420 | if (fc & ~(PAUSE_TX | PAUSE_RX)) | |
421 | return -1; | |
422 | ||
423 | if (fc != cmac->instance->fc) { | |
424 | cmac->instance->fc = (u8) fc; | |
425 | if (cmac->instance->enabled & MAC_DIRECTION_TX) | |
426 | pm3393_enable(cmac, MAC_DIRECTION_TX); | |
427 | } | |
428 | return 0; | |
429 | } | |
430 | ||
e0348b9a DLR |
431 | #define RMON_UPDATE(mac, name, stat_name) \ |
432 | { \ | |
433 | t1_tpi_read((mac)->adapter, OFFSET(name), &val0); \ | |
434 | t1_tpi_read((mac)->adapter, OFFSET((name)+1), &val1); \ | |
435 | t1_tpi_read((mac)->adapter, OFFSET((name)+2), &val2); \ | |
436 | (mac)->stats.stat_name = (u64)(val0 & 0xffff) | \ | |
437 | ((u64)(val1 & 0xffff) << 16) | \ | |
438 | ((u64)(val2 & 0xff) << 32) | \ | |
439 | ((mac)->stats.stat_name & \ | |
440 | 0xffffff0000000000ULL); \ | |
441 | if (ro & \ | |
442 | (1ULL << ((name - SUNI1x10GEXP_REG_MSTAT_COUNTER_0_LOW) >> 2))) \ | |
443 | (mac)->stats.stat_name += 1ULL << 40; \ | |
a7377a50 SH |
444 | } |
445 | ||
8199d3a7 CL |
446 | static const struct cmac_statistics *pm3393_update_statistics(struct cmac *mac, |
447 | int flag) | |
448 | { | |
e0348b9a DLR |
449 | u64 ro; |
450 | u32 val0, val1, val2, val3; | |
8199d3a7 CL |
451 | |
452 | /* Snap the counters */ | |
453 | pmwrite(mac, SUNI1x10GEXP_REG_MSTAT_CONTROL, | |
454 | SUNI1x10GEXP_BITMSK_MSTAT_SNAP); | |
455 | ||
456 | /* Counter rollover, clear on read */ | |
457 | pmread(mac, SUNI1x10GEXP_REG_MSTAT_COUNTER_ROLLOVER_0, &val0); | |
458 | pmread(mac, SUNI1x10GEXP_REG_MSTAT_COUNTER_ROLLOVER_1, &val1); | |
459 | pmread(mac, SUNI1x10GEXP_REG_MSTAT_COUNTER_ROLLOVER_2, &val2); | |
460 | pmread(mac, SUNI1x10GEXP_REG_MSTAT_COUNTER_ROLLOVER_3, &val3); | |
461 | ro = ((u64)val0 & 0xffff) | (((u64)val1 & 0xffff) << 16) | | |
462 | (((u64)val2 & 0xffff) << 32) | (((u64)val3 & 0xffff) << 48); | |
463 | ||
e0348b9a DLR |
464 | /* Rx stats */ |
465 | RMON_UPDATE(mac, RxOctetsReceivedOK, RxOctetsOK); | |
466 | RMON_UPDATE(mac, RxUnicastFramesReceivedOK, RxUnicastFramesOK); | |
467 | RMON_UPDATE(mac, RxMulticastFramesReceivedOK, RxMulticastFramesOK); | |
468 | RMON_UPDATE(mac, RxBroadcastFramesReceivedOK, RxBroadcastFramesOK); | |
469 | RMON_UPDATE(mac, RxPAUSEMACCtrlFramesReceived, RxPauseFrames); | |
470 | RMON_UPDATE(mac, RxFrameCheckSequenceErrors, RxFCSErrors); | |
471 | RMON_UPDATE(mac, RxFramesLostDueToInternalMACErrors, | |
472 | RxInternalMACRcvError); | |
473 | RMON_UPDATE(mac, RxSymbolErrors, RxSymbolErrors); | |
474 | RMON_UPDATE(mac, RxInRangeLengthErrors, RxInRangeLengthErrors); | |
475 | RMON_UPDATE(mac, RxFramesTooLongErrors , RxFrameTooLongErrors); | |
476 | RMON_UPDATE(mac, RxJabbers, RxJabberErrors); | |
477 | RMON_UPDATE(mac, RxFragments, RxRuntErrors); | |
478 | RMON_UPDATE(mac, RxUndersizedFrames, RxRuntErrors); | |
479 | RMON_UPDATE(mac, RxJumboFramesReceivedOK, RxJumboFramesOK); | |
480 | RMON_UPDATE(mac, RxJumboOctetsReceivedOK, RxJumboOctetsOK); | |
481 | ||
482 | /* Tx stats */ | |
483 | RMON_UPDATE(mac, TxOctetsTransmittedOK, TxOctetsOK); | |
484 | RMON_UPDATE(mac, TxFramesLostDueToInternalMACTransmissionError, | |
485 | TxInternalMACXmitError); | |
486 | RMON_UPDATE(mac, TxTransmitSystemError, TxFCSErrors); | |
487 | RMON_UPDATE(mac, TxUnicastFramesTransmittedOK, TxUnicastFramesOK); | |
488 | RMON_UPDATE(mac, TxMulticastFramesTransmittedOK, TxMulticastFramesOK); | |
489 | RMON_UPDATE(mac, TxBroadcastFramesTransmittedOK, TxBroadcastFramesOK); | |
490 | RMON_UPDATE(mac, TxPAUSEMACCtrlFramesTransmitted, TxPauseFrames); | |
491 | RMON_UPDATE(mac, TxJumboFramesReceivedOK, TxJumboFramesOK); | |
492 | RMON_UPDATE(mac, TxJumboOctetsReceivedOK, TxJumboOctetsOK); | |
8199d3a7 CL |
493 | |
494 | return &mac->stats; | |
495 | } | |
496 | ||
497 | static int pm3393_macaddress_get(struct cmac *cmac, u8 mac_addr[6]) | |
498 | { | |
499 | memcpy(mac_addr, cmac->instance->mac_addr, 6); | |
500 | return 0; | |
501 | } | |
502 | ||
503 | static int pm3393_macaddress_set(struct cmac *cmac, u8 ma[6]) | |
504 | { | |
505 | u32 val, lo, mid, hi, enabled = cmac->instance->enabled; | |
506 | ||
507 | /* | |
508 | * MAC addr: 00:07:43:00:13:09 | |
509 | * | |
510 | * ma[5] = 0x09 | |
511 | * ma[4] = 0x13 | |
512 | * ma[3] = 0x00 | |
513 | * ma[2] = 0x43 | |
514 | * ma[1] = 0x07 | |
515 | * ma[0] = 0x00 | |
516 | * | |
517 | * The PM3393 requires byte swapping and reverse order entry | |
518 | * when programming MAC addresses: | |
519 | * | |
520 | * low_bits[15:0] = ma[1]:ma[0] | |
521 | * mid_bits[31:16] = ma[3]:ma[2] | |
522 | * high_bits[47:32] = ma[5]:ma[4] | |
523 | */ | |
524 | ||
525 | /* Store local copy */ | |
526 | memcpy(cmac->instance->mac_addr, ma, 6); | |
527 | ||
356bd146 | 528 | lo = ((u32) ma[1] << 8) | (u32) ma[0]; |
8199d3a7 | 529 | mid = ((u32) ma[3] << 8) | (u32) ma[2]; |
356bd146 | 530 | hi = ((u32) ma[5] << 8) | (u32) ma[4]; |
8199d3a7 CL |
531 | |
532 | /* Disable Rx/Tx MAC before configuring it. */ | |
533 | if (enabled) | |
534 | pm3393_disable(cmac, MAC_DIRECTION_RX | MAC_DIRECTION_TX); | |
535 | ||
536 | /* Set RXXG Station Address */ | |
537 | pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_SA_15_0, lo); | |
538 | pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_SA_31_16, mid); | |
539 | pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_SA_47_32, hi); | |
540 | ||
541 | /* Set TXXG Station Address */ | |
542 | pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_SA_15_0, lo); | |
543 | pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_SA_31_16, mid); | |
544 | pmwrite(cmac, SUNI1x10GEXP_REG_TXXG_SA_47_32, hi); | |
545 | ||
546 | /* Setup Exact Match Filter 1 with our MAC address | |
547 | * | |
548 | * Must disable exact match filter before configuring it. | |
549 | */ | |
550 | pmread(cmac, SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_0, &val); | |
551 | val &= 0xff0f; | |
552 | pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_0, val); | |
553 | ||
554 | pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_EXACT_MATCH_ADDR_1_LOW, lo); | |
555 | pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_EXACT_MATCH_ADDR_1_MID, mid); | |
556 | pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_EXACT_MATCH_ADDR_1_HIGH, hi); | |
557 | ||
558 | val |= 0x0090; | |
559 | pmwrite(cmac, SUNI1x10GEXP_REG_RXXG_ADDRESS_FILTER_CONTROL_0, val); | |
560 | ||
561 | if (enabled) | |
562 | pm3393_enable(cmac, enabled); | |
563 | return 0; | |
564 | } | |
565 | ||
566 | static void pm3393_destroy(struct cmac *cmac) | |
567 | { | |
568 | kfree(cmac); | |
569 | } | |
570 | ||
571 | static struct cmac_ops pm3393_ops = { | |
572 | .destroy = pm3393_destroy, | |
573 | .reset = pm3393_reset, | |
574 | .interrupt_enable = pm3393_interrupt_enable, | |
575 | .interrupt_disable = pm3393_interrupt_disable, | |
576 | .interrupt_clear = pm3393_interrupt_clear, | |
577 | .interrupt_handler = pm3393_interrupt_handler, | |
578 | .enable = pm3393_enable_port, | |
579 | .disable = pm3393_disable, | |
580 | .loopback_enable = pm3393_loopback_enable, | |
581 | .loopback_disable = pm3393_loopback_disable, | |
582 | .set_mtu = pm3393_set_mtu, | |
583 | .set_rx_mode = pm3393_set_rx_mode, | |
584 | .get_speed_duplex_fc = pm3393_get_speed_duplex_fc, | |
585 | .set_speed_duplex_fc = pm3393_set_speed_duplex_fc, | |
586 | .statistics_update = pm3393_update_statistics, | |
587 | .macaddress_get = pm3393_macaddress_get, | |
588 | .macaddress_set = pm3393_macaddress_set | |
589 | }; | |
590 | ||
591 | static struct cmac *pm3393_mac_create(adapter_t *adapter, int index) | |
592 | { | |
593 | struct cmac *cmac; | |
594 | ||
1270266c | 595 | cmac = kzalloc(sizeof(*cmac) + sizeof(cmac_instance), GFP_KERNEL); |
8199d3a7 CL |
596 | if (!cmac) |
597 | return NULL; | |
8199d3a7 CL |
598 | |
599 | cmac->ops = &pm3393_ops; | |
600 | cmac->instance = (cmac_instance *) (cmac + 1); | |
601 | cmac->adapter = adapter; | |
602 | cmac->instance->fc = PAUSE_TX | PAUSE_RX; | |
603 | ||
604 | t1_tpi_write(adapter, OFFSET(0x0001), 0x00008000); | |
605 | t1_tpi_write(adapter, OFFSET(0x0001), 0x00000000); | |
606 | t1_tpi_write(adapter, OFFSET(0x2308), 0x00009800); | |
607 | t1_tpi_write(adapter, OFFSET(0x2305), 0x00001001); /* PL4IO Enable */ | |
608 | t1_tpi_write(adapter, OFFSET(0x2320), 0x00008800); | |
609 | t1_tpi_write(adapter, OFFSET(0x2321), 0x00008800); | |
610 | t1_tpi_write(adapter, OFFSET(0x2322), 0x00008800); | |
611 | t1_tpi_write(adapter, OFFSET(0x2323), 0x00008800); | |
612 | t1_tpi_write(adapter, OFFSET(0x2324), 0x00008800); | |
613 | t1_tpi_write(adapter, OFFSET(0x2325), 0x00008800); | |
614 | t1_tpi_write(adapter, OFFSET(0x2326), 0x00008800); | |
615 | t1_tpi_write(adapter, OFFSET(0x2327), 0x00008800); | |
616 | t1_tpi_write(adapter, OFFSET(0x2328), 0x00008800); | |
617 | t1_tpi_write(adapter, OFFSET(0x2329), 0x00008800); | |
618 | t1_tpi_write(adapter, OFFSET(0x232a), 0x00008800); | |
619 | t1_tpi_write(adapter, OFFSET(0x232b), 0x00008800); | |
620 | t1_tpi_write(adapter, OFFSET(0x232c), 0x00008800); | |
621 | t1_tpi_write(adapter, OFFSET(0x232d), 0x00008800); | |
622 | t1_tpi_write(adapter, OFFSET(0x232e), 0x00008800); | |
623 | t1_tpi_write(adapter, OFFSET(0x232f), 0x00008800); | |
624 | t1_tpi_write(adapter, OFFSET(0x230d), 0x00009c00); | |
625 | t1_tpi_write(adapter, OFFSET(0x2304), 0x00000202); /* PL4IO Calendar Repetitions */ | |
626 | ||
627 | t1_tpi_write(adapter, OFFSET(0x3200), 0x00008080); /* EFLX Enable */ | |
628 | t1_tpi_write(adapter, OFFSET(0x3210), 0x00000000); /* EFLX Channel Deprovision */ | |
629 | t1_tpi_write(adapter, OFFSET(0x3203), 0x00000000); /* EFLX Low Limit */ | |
630 | t1_tpi_write(adapter, OFFSET(0x3204), 0x00000040); /* EFLX High Limit */ | |
631 | t1_tpi_write(adapter, OFFSET(0x3205), 0x000002cc); /* EFLX Almost Full */ | |
632 | t1_tpi_write(adapter, OFFSET(0x3206), 0x00000199); /* EFLX Almost Empty */ | |
633 | t1_tpi_write(adapter, OFFSET(0x3207), 0x00000240); /* EFLX Cut Through Threshold */ | |
634 | t1_tpi_write(adapter, OFFSET(0x3202), 0x00000000); /* EFLX Indirect Register Update */ | |
635 | t1_tpi_write(adapter, OFFSET(0x3210), 0x00000001); /* EFLX Channel Provision */ | |
636 | t1_tpi_write(adapter, OFFSET(0x3208), 0x0000ffff); /* EFLX Undocumented */ | |
637 | t1_tpi_write(adapter, OFFSET(0x320a), 0x0000ffff); /* EFLX Undocumented */ | |
638 | t1_tpi_write(adapter, OFFSET(0x320c), 0x0000ffff); /* EFLX enable overflow interrupt The other bit are undocumented */ | |
639 | t1_tpi_write(adapter, OFFSET(0x320e), 0x0000ffff); /* EFLX Undocumented */ | |
640 | ||
641 | t1_tpi_write(adapter, OFFSET(0x2200), 0x0000c000); /* IFLX Configuration - enable */ | |
642 | t1_tpi_write(adapter, OFFSET(0x2201), 0x00000000); /* IFLX Channel Deprovision */ | |
643 | t1_tpi_write(adapter, OFFSET(0x220e), 0x00000000); /* IFLX Low Limit */ | |
644 | t1_tpi_write(adapter, OFFSET(0x220f), 0x00000100); /* IFLX High Limit */ | |
645 | t1_tpi_write(adapter, OFFSET(0x2210), 0x00000c00); /* IFLX Almost Full Limit */ | |
646 | t1_tpi_write(adapter, OFFSET(0x2211), 0x00000599); /* IFLX Almost Empty Limit */ | |
647 | t1_tpi_write(adapter, OFFSET(0x220d), 0x00000000); /* IFLX Indirect Register Update */ | |
648 | t1_tpi_write(adapter, OFFSET(0x2201), 0x00000001); /* IFLX Channel Provision */ | |
649 | t1_tpi_write(adapter, OFFSET(0x2203), 0x0000ffff); /* IFLX Undocumented */ | |
650 | t1_tpi_write(adapter, OFFSET(0x2205), 0x0000ffff); /* IFLX Undocumented */ | |
651 | t1_tpi_write(adapter, OFFSET(0x2209), 0x0000ffff); /* IFLX Enable overflow interrupt. The other bit are undocumented */ | |
652 | ||
653 | t1_tpi_write(adapter, OFFSET(0x2241), 0xfffffffe); /* PL4MOS Undocumented */ | |
654 | t1_tpi_write(adapter, OFFSET(0x2242), 0x0000ffff); /* PL4MOS Undocumented */ | |
655 | t1_tpi_write(adapter, OFFSET(0x2243), 0x00000008); /* PL4MOS Starving Burst Size */ | |
656 | t1_tpi_write(adapter, OFFSET(0x2244), 0x00000008); /* PL4MOS Hungry Burst Size */ | |
657 | t1_tpi_write(adapter, OFFSET(0x2245), 0x00000008); /* PL4MOS Transfer Size */ | |
658 | t1_tpi_write(adapter, OFFSET(0x2240), 0x00000005); /* PL4MOS Disable */ | |
659 | ||
660 | t1_tpi_write(adapter, OFFSET(0x2280), 0x00002103); /* PL4ODP Training Repeat and SOP rule */ | |
661 | t1_tpi_write(adapter, OFFSET(0x2284), 0x00000000); /* PL4ODP MAX_T setting */ | |
662 | ||
663 | t1_tpi_write(adapter, OFFSET(0x3280), 0x00000087); /* PL4IDU Enable data forward, port state machine. Set ALLOW_NON_ZERO_OLB */ | |
664 | t1_tpi_write(adapter, OFFSET(0x3282), 0x0000001f); /* PL4IDU Enable Dip4 check error interrupts */ | |
665 | ||
666 | t1_tpi_write(adapter, OFFSET(0x3040), 0x0c32); /* # TXXG Config */ | |
667 | /* For T1 use timer based Mac flow control. */ | |
559fb51b | 668 | t1_tpi_write(adapter, OFFSET(0x304d), 0x8000); |
8199d3a7 | 669 | t1_tpi_write(adapter, OFFSET(0x2040), 0x059c); /* # RXXG Config */ |
559fb51b | 670 | t1_tpi_write(adapter, OFFSET(0x2049), 0x0001); /* # RXXG Cut Through */ |
8199d3a7 CL |
671 | t1_tpi_write(adapter, OFFSET(0x2070), 0x0000); /* # Disable promiscuous mode */ |
672 | ||
673 | /* Setup Exact Match Filter 0 to allow broadcast packets. | |
674 | */ | |
675 | t1_tpi_write(adapter, OFFSET(0x206e), 0x0000); /* # Disable Match Enable bit */ | |
676 | t1_tpi_write(adapter, OFFSET(0x204a), 0xffff); /* # low addr */ | |
677 | t1_tpi_write(adapter, OFFSET(0x204b), 0xffff); /* # mid addr */ | |
678 | t1_tpi_write(adapter, OFFSET(0x204c), 0xffff); /* # high addr */ | |
679 | t1_tpi_write(adapter, OFFSET(0x206e), 0x0009); /* # Enable Match Enable bit */ | |
680 | ||
681 | t1_tpi_write(adapter, OFFSET(0x0003), 0x0000); /* # NO SOP/ PAD_EN setup */ | |
682 | t1_tpi_write(adapter, OFFSET(0x0100), 0x0ff0); /* # RXEQB disabled */ | |
683 | t1_tpi_write(adapter, OFFSET(0x0101), 0x0f0f); /* # No Preemphasis */ | |
684 | ||
685 | return cmac; | |
686 | } | |
687 | ||
688 | static int pm3393_mac_reset(adapter_t * adapter) | |
689 | { | |
690 | u32 val; | |
691 | u32 x; | |
692 | u32 is_pl4_reset_finished; | |
693 | u32 is_pl4_outof_lock; | |
694 | u32 is_xaui_mabc_pll_locked; | |
695 | u32 successful_reset; | |
696 | int i; | |
697 | ||
698 | /* The following steps are required to properly reset | |
699 | * the PM3393. This information is provided in the | |
700 | * PM3393 datasheet (Issue 2: November 2002) | |
701 | * section 13.1 -- Device Reset. | |
702 | * | |
703 | * The PM3393 has three types of components that are | |
704 | * individually reset: | |
705 | * | |
706 | * DRESETB - Digital circuitry | |
707 | * PL4_ARESETB - PL4 analog circuitry | |
708 | * XAUI_ARESETB - XAUI bus analog circuitry | |
709 | * | |
710 | * Steps to reset PM3393 using RSTB pin: | |
711 | * | |
712 | * 1. Assert RSTB pin low ( write 0 ) | |
713 | * 2. Wait at least 1ms to initiate a complete initialization of device. | |
714 | * 3. Wait until all external clocks and REFSEL are stable. | |
715 | * 4. Wait minimum of 1ms. (after external clocks and REFEL are stable) | |
716 | * 5. De-assert RSTB ( write 1 ) | |
717 | * 6. Wait until internal timers to expires after ~14ms. | |
718 | * - Allows analog clock synthesizer(PL4CSU) to stabilize to | |
719 | * selected reference frequency before allowing the digital | |
720 | * portion of the device to operate. | |
721 | * 7. Wait at least 200us for XAUI interface to stabilize. | |
722 | * 8. Verify the PM3393 came out of reset successfully. | |
723 | * Set successful reset flag if everything worked else try again | |
724 | * a few more times. | |
725 | */ | |
726 | ||
727 | successful_reset = 0; | |
728 | for (i = 0; i < 3 && !successful_reset; i++) { | |
729 | /* 1 */ | |
730 | t1_tpi_read(adapter, A_ELMER0_GPO, &val); | |
731 | val &= ~1; | |
732 | t1_tpi_write(adapter, A_ELMER0_GPO, val); | |
733 | ||
734 | /* 2 */ | |
735 | msleep(1); | |
736 | ||
737 | /* 3 */ | |
738 | msleep(1); | |
739 | ||
740 | /* 4 */ | |
741 | msleep(2 /*1 extra ms for safety */ ); | |
742 | ||
743 | /* 5 */ | |
744 | val |= 1; | |
745 | t1_tpi_write(adapter, A_ELMER0_GPO, val); | |
746 | ||
747 | /* 6 */ | |
748 | msleep(15 /*1 extra ms for safety */ ); | |
749 | ||
750 | /* 7 */ | |
751 | msleep(1); | |
752 | ||
753 | /* 8 */ | |
754 | ||
755 | /* Has PL4 analog block come out of reset correctly? */ | |
756 | t1_tpi_read(adapter, OFFSET(SUNI1x10GEXP_REG_DEVICE_STATUS), &val); | |
757 | is_pl4_reset_finished = (val & SUNI1x10GEXP_BITMSK_TOP_EXPIRED); | |
758 | ||
759 | /* TBD XXX SUNI1x10GEXP_BITMSK_TOP_PL4_IS_DOOL gets locked later in the init sequence | |
760 | * figure out why? */ | |
761 | ||
762 | /* Have all PL4 block clocks locked? */ | |
763 | x = (SUNI1x10GEXP_BITMSK_TOP_PL4_ID_DOOL | |
764 | /*| SUNI1x10GEXP_BITMSK_TOP_PL4_IS_DOOL */ | | |
765 | SUNI1x10GEXP_BITMSK_TOP_PL4_ID_ROOL | | |
766 | SUNI1x10GEXP_BITMSK_TOP_PL4_IS_ROOL | | |
767 | SUNI1x10GEXP_BITMSK_TOP_PL4_OUT_ROOL); | |
768 | is_pl4_outof_lock = (val & x); | |
769 | ||
770 | /* ??? If this fails, might be able to software reset the XAUI part | |
771 | * and try to recover... thus saving us from doing another HW reset */ | |
772 | /* Has the XAUI MABC PLL circuitry stablized? */ | |
773 | is_xaui_mabc_pll_locked = | |
774 | (val & SUNI1x10GEXP_BITMSK_TOP_SXRA_EXPIRED); | |
775 | ||
776 | successful_reset = (is_pl4_reset_finished && !is_pl4_outof_lock | |
777 | && is_xaui_mabc_pll_locked); | |
f1d3d38a SH |
778 | |
779 | CH_DBG(adapter, HW, | |
780 | "PM3393 HW reset %d: pl4_reset 0x%x, val 0x%x, " | |
781 | "is_pl4_outof_lock 0x%x, xaui_locked 0x%x\n", | |
782 | i, is_pl4_reset_finished, val, is_pl4_outof_lock, | |
783 | is_xaui_mabc_pll_locked); | |
8199d3a7 CL |
784 | } |
785 | return successful_reset ? 0 : 1; | |
786 | } | |
787 | ||
459e536b SH |
788 | const struct gmac t1_pm3393_ops = { |
789 | .stats_update_period = STATS_TICK_SECS, | |
790 | .create = pm3393_mac_create, | |
791 | .reset = pm3393_mac_reset, | |
8199d3a7 | 792 | }; |