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cf4ece53 | 1 | /* |
c47dda7d | 2 | * Copyright (C) 2010 OKI SEMICONDUCTOR CO., LTD. |
cf4ece53 MO |
3 | * |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; version 2 of the License. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this program; if not, write to the Free Software | |
15 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA. | |
16 | */ | |
17 | ||
18 | #include <linux/module.h> | |
19 | #include <linux/kernel.h> | |
20 | #include <linux/types.h> | |
21 | #include <linux/fs.h> | |
22 | #include <linux/uaccess.h> | |
23 | #include <linux/string.h> | |
24 | #include <linux/pci.h> | |
25 | #include <linux/io.h> | |
26 | #include <linux/delay.h> | |
27 | #include <linux/mutex.h> | |
28 | #include <linux/if_ether.h> | |
29 | #include <linux/ctype.h> | |
6ae705b2 | 30 | #include <linux/dmi.h> |
cf4ece53 MO |
31 | |
32 | #define PHUB_STATUS 0x00 /* Status Register offset */ | |
33 | #define PHUB_CONTROL 0x04 /* Control Register offset */ | |
34 | #define PHUB_TIMEOUT 0x05 /* Time out value for Status Register */ | |
35 | #define PCH_PHUB_ROM_WRITE_ENABLE 0x01 /* Enabling for writing ROM */ | |
36 | #define PCH_PHUB_ROM_WRITE_DISABLE 0x00 /* Disabling for writing ROM */ | |
275640b0 TM |
37 | #define PCH_PHUB_MAC_START_ADDR_EG20T 0x14 /* MAC data area start address |
38 | offset */ | |
39 | #define PCH_PHUB_MAC_START_ADDR_ML7223 0x20C /* MAC data area start address | |
40 | offset */ | |
41 | #define PCH_PHUB_ROM_START_ADDR_EG20T 0x80 /* ROM data area start address offset | |
c47dda7d TM |
42 | (Intel EG20T PCH)*/ |
43 | #define PCH_PHUB_ROM_START_ADDR_ML7213 0x400 /* ROM data area start address | |
44 | offset(OKI SEMICONDUCTOR ML7213) | |
45 | */ | |
275640b0 TM |
46 | #define PCH_PHUB_ROM_START_ADDR_ML7223 0x400 /* ROM data area start address |
47 | offset(OKI SEMICONDUCTOR ML7223) | |
48 | */ | |
cf4ece53 MO |
49 | |
50 | /* MAX number of INT_REDUCE_CONTROL registers */ | |
51 | #define MAX_NUM_INT_REDUCE_CONTROL_REG 128 | |
52 | #define PCI_DEVICE_ID_PCH1_PHUB 0x8801 | |
53 | #define PCH_MINOR_NOS 1 | |
54 | #define CLKCFG_CAN_50MHZ 0x12000000 | |
55 | #define CLKCFG_CANCLK_MASK 0xFF000000 | |
6ae705b2 DT |
56 | #define CLKCFG_UART_MASK 0xFFFFFF |
57 | ||
58 | /* CM-iTC */ | |
59 | #define CLKCFG_UART_48MHZ (1 << 16) | |
60 | #define CLKCFG_BAUDDIV (2 << 20) | |
61 | #define CLKCFG_PLL2VCO (8 << 9) | |
62 | #define CLKCFG_UARTCLKSEL (1 << 18) | |
cf4ece53 | 63 | |
1a738dcf TM |
64 | /* Macros for ML7213 */ |
65 | #define PCI_VENDOR_ID_ROHM 0x10db | |
66 | #define PCI_DEVICE_ID_ROHM_ML7213_PHUB 0x801A | |
cf4ece53 | 67 | |
c47dda7d TM |
68 | /* Macros for ML7213 */ |
69 | #define PCI_VENDOR_ID_ROHM 0x10db | |
70 | #define PCI_DEVICE_ID_ROHM_ML7213_PHUB 0x801A | |
71 | ||
275640b0 TM |
72 | /* Macros for ML7223 */ |
73 | #define PCI_DEVICE_ID_ROHM_ML7223_mPHUB 0x8012 /* for Bus-m */ | |
74 | #define PCI_DEVICE_ID_ROHM_ML7223_nPHUB 0x8002 /* for Bus-n */ | |
75 | ||
cf4ece53 MO |
76 | /* SROM ACCESS Macro */ |
77 | #define PCH_WORD_ADDR_MASK (~((1 << 2) - 1)) | |
78 | ||
79 | /* Registers address offset */ | |
80 | #define PCH_PHUB_ID_REG 0x0000 | |
81 | #define PCH_PHUB_QUEUE_PRI_VAL_REG 0x0004 | |
82 | #define PCH_PHUB_RC_QUEUE_MAXSIZE_REG 0x0008 | |
83 | #define PCH_PHUB_BRI_QUEUE_MAXSIZE_REG 0x000C | |
84 | #define PCH_PHUB_COMP_RESP_TIMEOUT_REG 0x0010 | |
85 | #define PCH_PHUB_BUS_SLAVE_CONTROL_REG 0x0014 | |
86 | #define PCH_PHUB_DEADLOCK_AVOID_TYPE_REG 0x0018 | |
87 | #define PCH_PHUB_INTPIN_REG_WPERMIT_REG0 0x0020 | |
88 | #define PCH_PHUB_INTPIN_REG_WPERMIT_REG1 0x0024 | |
89 | #define PCH_PHUB_INTPIN_REG_WPERMIT_REG2 0x0028 | |
90 | #define PCH_PHUB_INTPIN_REG_WPERMIT_REG3 0x002C | |
91 | #define PCH_PHUB_INT_REDUCE_CONTROL_REG_BASE 0x0040 | |
92 | #define CLKCFG_REG_OFFSET 0x500 | |
93 | ||
94 | #define PCH_PHUB_OROM_SIZE 15360 | |
95 | ||
96 | /** | |
97 | * struct pch_phub_reg - PHUB register structure | |
98 | * @phub_id_reg: PHUB_ID register val | |
99 | * @q_pri_val_reg: QUEUE_PRI_VAL register val | |
100 | * @rc_q_maxsize_reg: RC_QUEUE_MAXSIZE register val | |
101 | * @bri_q_maxsize_reg: BRI_QUEUE_MAXSIZE register val | |
102 | * @comp_resp_timeout_reg: COMP_RESP_TIMEOUT register val | |
103 | * @bus_slave_control_reg: BUS_SLAVE_CONTROL_REG register val | |
104 | * @deadlock_avoid_type_reg: DEADLOCK_AVOID_TYPE register val | |
105 | * @intpin_reg_wpermit_reg0: INTPIN_REG_WPERMIT register 0 val | |
106 | * @intpin_reg_wpermit_reg1: INTPIN_REG_WPERMIT register 1 val | |
107 | * @intpin_reg_wpermit_reg2: INTPIN_REG_WPERMIT register 2 val | |
108 | * @intpin_reg_wpermit_reg3: INTPIN_REG_WPERMIT register 3 val | |
109 | * @int_reduce_control_reg: INT_REDUCE_CONTROL registers val | |
110 | * @clkcfg_reg: CLK CFG register val | |
111 | * @pch_phub_base_address: Register base address | |
112 | * @pch_phub_extrom_base_address: external rom base address | |
275640b0 TM |
113 | * @pch_mac_start_address: MAC address area start address |
114 | * @pch_opt_rom_start_address: Option ROM start address | |
115 | * @ioh_type: Save IOH type | |
cf4ece53 MO |
116 | */ |
117 | struct pch_phub_reg { | |
118 | u32 phub_id_reg; | |
119 | u32 q_pri_val_reg; | |
120 | u32 rc_q_maxsize_reg; | |
121 | u32 bri_q_maxsize_reg; | |
122 | u32 comp_resp_timeout_reg; | |
123 | u32 bus_slave_control_reg; | |
124 | u32 deadlock_avoid_type_reg; | |
125 | u32 intpin_reg_wpermit_reg0; | |
126 | u32 intpin_reg_wpermit_reg1; | |
127 | u32 intpin_reg_wpermit_reg2; | |
128 | u32 intpin_reg_wpermit_reg3; | |
129 | u32 int_reduce_control_reg[MAX_NUM_INT_REDUCE_CONTROL_REG]; | |
130 | u32 clkcfg_reg; | |
131 | void __iomem *pch_phub_base_address; | |
132 | void __iomem *pch_phub_extrom_base_address; | |
275640b0 TM |
133 | u32 pch_mac_start_address; |
134 | u32 pch_opt_rom_start_address; | |
135 | int ioh_type; | |
cf4ece53 MO |
136 | }; |
137 | ||
138 | /* SROM SPEC for MAC address assignment offset */ | |
139 | static const int pch_phub_mac_offset[ETH_ALEN] = {0x3, 0x2, 0x1, 0x0, 0xb, 0xa}; | |
140 | ||
141 | static DEFINE_MUTEX(pch_phub_mutex); | |
142 | ||
143 | /** | |
144 | * pch_phub_read_modify_write_reg() - Reading modifying and writing register | |
145 | * @reg_addr_offset: Register offset address value. | |
146 | * @data: Writing value. | |
147 | * @mask: Mask value. | |
148 | */ | |
149 | static void pch_phub_read_modify_write_reg(struct pch_phub_reg *chip, | |
150 | unsigned int reg_addr_offset, | |
151 | unsigned int data, unsigned int mask) | |
152 | { | |
153 | void __iomem *reg_addr = chip->pch_phub_base_address + reg_addr_offset; | |
154 | iowrite32(((ioread32(reg_addr) & ~mask)) | data, reg_addr); | |
155 | } | |
156 | ||
157 | /* pch_phub_save_reg_conf - saves register configuration */ | |
158 | static void pch_phub_save_reg_conf(struct pci_dev *pdev) | |
159 | { | |
160 | unsigned int i; | |
161 | struct pch_phub_reg *chip = pci_get_drvdata(pdev); | |
162 | ||
163 | void __iomem *p = chip->pch_phub_base_address; | |
164 | ||
165 | chip->phub_id_reg = ioread32(p + PCH_PHUB_ID_REG); | |
166 | chip->q_pri_val_reg = ioread32(p + PCH_PHUB_QUEUE_PRI_VAL_REG); | |
167 | chip->rc_q_maxsize_reg = ioread32(p + PCH_PHUB_RC_QUEUE_MAXSIZE_REG); | |
168 | chip->bri_q_maxsize_reg = ioread32(p + PCH_PHUB_BRI_QUEUE_MAXSIZE_REG); | |
169 | chip->comp_resp_timeout_reg = | |
170 | ioread32(p + PCH_PHUB_COMP_RESP_TIMEOUT_REG); | |
171 | chip->bus_slave_control_reg = | |
172 | ioread32(p + PCH_PHUB_BUS_SLAVE_CONTROL_REG); | |
173 | chip->deadlock_avoid_type_reg = | |
174 | ioread32(p + PCH_PHUB_DEADLOCK_AVOID_TYPE_REG); | |
175 | chip->intpin_reg_wpermit_reg0 = | |
176 | ioread32(p + PCH_PHUB_INTPIN_REG_WPERMIT_REG0); | |
177 | chip->intpin_reg_wpermit_reg1 = | |
178 | ioread32(p + PCH_PHUB_INTPIN_REG_WPERMIT_REG1); | |
179 | chip->intpin_reg_wpermit_reg2 = | |
180 | ioread32(p + PCH_PHUB_INTPIN_REG_WPERMIT_REG2); | |
181 | chip->intpin_reg_wpermit_reg3 = | |
182 | ioread32(p + PCH_PHUB_INTPIN_REG_WPERMIT_REG3); | |
183 | dev_dbg(&pdev->dev, "%s : " | |
184 | "chip->phub_id_reg=%x, " | |
185 | "chip->q_pri_val_reg=%x, " | |
186 | "chip->rc_q_maxsize_reg=%x, " | |
187 | "chip->bri_q_maxsize_reg=%x, " | |
188 | "chip->comp_resp_timeout_reg=%x, " | |
189 | "chip->bus_slave_control_reg=%x, " | |
190 | "chip->deadlock_avoid_type_reg=%x, " | |
191 | "chip->intpin_reg_wpermit_reg0=%x, " | |
192 | "chip->intpin_reg_wpermit_reg1=%x, " | |
193 | "chip->intpin_reg_wpermit_reg2=%x, " | |
194 | "chip->intpin_reg_wpermit_reg3=%x\n", __func__, | |
195 | chip->phub_id_reg, | |
196 | chip->q_pri_val_reg, | |
197 | chip->rc_q_maxsize_reg, | |
198 | chip->bri_q_maxsize_reg, | |
199 | chip->comp_resp_timeout_reg, | |
200 | chip->bus_slave_control_reg, | |
201 | chip->deadlock_avoid_type_reg, | |
202 | chip->intpin_reg_wpermit_reg0, | |
203 | chip->intpin_reg_wpermit_reg1, | |
204 | chip->intpin_reg_wpermit_reg2, | |
205 | chip->intpin_reg_wpermit_reg3); | |
206 | for (i = 0; i < MAX_NUM_INT_REDUCE_CONTROL_REG; i++) { | |
207 | chip->int_reduce_control_reg[i] = | |
208 | ioread32(p + PCH_PHUB_INT_REDUCE_CONTROL_REG_BASE + 4 * i); | |
209 | dev_dbg(&pdev->dev, "%s : " | |
210 | "chip->int_reduce_control_reg[%d]=%x\n", | |
211 | __func__, i, chip->int_reduce_control_reg[i]); | |
212 | } | |
213 | chip->clkcfg_reg = ioread32(p + CLKCFG_REG_OFFSET); | |
214 | } | |
215 | ||
216 | /* pch_phub_restore_reg_conf - restore register configuration */ | |
217 | static void pch_phub_restore_reg_conf(struct pci_dev *pdev) | |
218 | { | |
219 | unsigned int i; | |
220 | struct pch_phub_reg *chip = pci_get_drvdata(pdev); | |
221 | void __iomem *p; | |
222 | p = chip->pch_phub_base_address; | |
223 | ||
224 | iowrite32(chip->phub_id_reg, p + PCH_PHUB_ID_REG); | |
225 | iowrite32(chip->q_pri_val_reg, p + PCH_PHUB_QUEUE_PRI_VAL_REG); | |
226 | iowrite32(chip->rc_q_maxsize_reg, p + PCH_PHUB_RC_QUEUE_MAXSIZE_REG); | |
227 | iowrite32(chip->bri_q_maxsize_reg, p + PCH_PHUB_BRI_QUEUE_MAXSIZE_REG); | |
228 | iowrite32(chip->comp_resp_timeout_reg, | |
229 | p + PCH_PHUB_COMP_RESP_TIMEOUT_REG); | |
230 | iowrite32(chip->bus_slave_control_reg, | |
231 | p + PCH_PHUB_BUS_SLAVE_CONTROL_REG); | |
232 | iowrite32(chip->deadlock_avoid_type_reg, | |
233 | p + PCH_PHUB_DEADLOCK_AVOID_TYPE_REG); | |
234 | iowrite32(chip->intpin_reg_wpermit_reg0, | |
235 | p + PCH_PHUB_INTPIN_REG_WPERMIT_REG0); | |
236 | iowrite32(chip->intpin_reg_wpermit_reg1, | |
237 | p + PCH_PHUB_INTPIN_REG_WPERMIT_REG1); | |
238 | iowrite32(chip->intpin_reg_wpermit_reg2, | |
239 | p + PCH_PHUB_INTPIN_REG_WPERMIT_REG2); | |
240 | iowrite32(chip->intpin_reg_wpermit_reg3, | |
241 | p + PCH_PHUB_INTPIN_REG_WPERMIT_REG3); | |
242 | dev_dbg(&pdev->dev, "%s : " | |
243 | "chip->phub_id_reg=%x, " | |
244 | "chip->q_pri_val_reg=%x, " | |
245 | "chip->rc_q_maxsize_reg=%x, " | |
246 | "chip->bri_q_maxsize_reg=%x, " | |
247 | "chip->comp_resp_timeout_reg=%x, " | |
248 | "chip->bus_slave_control_reg=%x, " | |
249 | "chip->deadlock_avoid_type_reg=%x, " | |
250 | "chip->intpin_reg_wpermit_reg0=%x, " | |
251 | "chip->intpin_reg_wpermit_reg1=%x, " | |
252 | "chip->intpin_reg_wpermit_reg2=%x, " | |
253 | "chip->intpin_reg_wpermit_reg3=%x\n", __func__, | |
254 | chip->phub_id_reg, | |
255 | chip->q_pri_val_reg, | |
256 | chip->rc_q_maxsize_reg, | |
257 | chip->bri_q_maxsize_reg, | |
258 | chip->comp_resp_timeout_reg, | |
259 | chip->bus_slave_control_reg, | |
260 | chip->deadlock_avoid_type_reg, | |
261 | chip->intpin_reg_wpermit_reg0, | |
262 | chip->intpin_reg_wpermit_reg1, | |
263 | chip->intpin_reg_wpermit_reg2, | |
264 | chip->intpin_reg_wpermit_reg3); | |
265 | for (i = 0; i < MAX_NUM_INT_REDUCE_CONTROL_REG; i++) { | |
266 | iowrite32(chip->int_reduce_control_reg[i], | |
267 | p + PCH_PHUB_INT_REDUCE_CONTROL_REG_BASE + 4 * i); | |
268 | dev_dbg(&pdev->dev, "%s : " | |
269 | "chip->int_reduce_control_reg[%d]=%x\n", | |
270 | __func__, i, chip->int_reduce_control_reg[i]); | |
271 | } | |
272 | ||
273 | iowrite32(chip->clkcfg_reg, p + CLKCFG_REG_OFFSET); | |
274 | } | |
275 | ||
276 | /** | |
277 | * pch_phub_read_serial_rom() - Reading Serial ROM | |
278 | * @offset_address: Serial ROM offset address to read. | |
279 | * @data: Read buffer for specified Serial ROM value. | |
280 | */ | |
281 | static void pch_phub_read_serial_rom(struct pch_phub_reg *chip, | |
282 | unsigned int offset_address, u8 *data) | |
283 | { | |
284 | void __iomem *mem_addr = chip->pch_phub_extrom_base_address + | |
285 | offset_address; | |
286 | ||
287 | *data = ioread8(mem_addr); | |
288 | } | |
289 | ||
290 | /** | |
291 | * pch_phub_write_serial_rom() - Writing Serial ROM | |
292 | * @offset_address: Serial ROM offset address. | |
293 | * @data: Serial ROM value to write. | |
294 | */ | |
295 | static int pch_phub_write_serial_rom(struct pch_phub_reg *chip, | |
296 | unsigned int offset_address, u8 data) | |
297 | { | |
298 | void __iomem *mem_addr = chip->pch_phub_extrom_base_address + | |
299 | (offset_address & PCH_WORD_ADDR_MASK); | |
300 | int i; | |
301 | unsigned int word_data; | |
302 | unsigned int pos; | |
303 | unsigned int mask; | |
304 | pos = (offset_address % 4) * 8; | |
305 | mask = ~(0xFF << pos); | |
306 | ||
307 | iowrite32(PCH_PHUB_ROM_WRITE_ENABLE, | |
308 | chip->pch_phub_extrom_base_address + PHUB_CONTROL); | |
309 | ||
310 | word_data = ioread32(mem_addr); | |
311 | iowrite32((word_data & mask) | (u32)data << pos, mem_addr); | |
312 | ||
313 | i = 0; | |
314 | while (ioread8(chip->pch_phub_extrom_base_address + | |
315 | PHUB_STATUS) != 0x00) { | |
316 | msleep(1); | |
317 | if (i == PHUB_TIMEOUT) | |
318 | return -ETIMEDOUT; | |
319 | i++; | |
320 | } | |
321 | ||
322 | iowrite32(PCH_PHUB_ROM_WRITE_DISABLE, | |
323 | chip->pch_phub_extrom_base_address + PHUB_CONTROL); | |
324 | ||
325 | return 0; | |
326 | } | |
327 | ||
328 | /** | |
329 | * pch_phub_read_serial_rom_val() - Read Serial ROM value | |
330 | * @offset_address: Serial ROM address offset value. | |
331 | * @data: Serial ROM value to read. | |
332 | */ | |
333 | static void pch_phub_read_serial_rom_val(struct pch_phub_reg *chip, | |
334 | unsigned int offset_address, u8 *data) | |
335 | { | |
336 | unsigned int mem_addr; | |
337 | ||
275640b0 | 338 | mem_addr = chip->pch_mac_start_address + |
cf4ece53 MO |
339 | pch_phub_mac_offset[offset_address]; |
340 | ||
341 | pch_phub_read_serial_rom(chip, mem_addr, data); | |
342 | } | |
343 | ||
344 | /** | |
345 | * pch_phub_write_serial_rom_val() - writing Serial ROM value | |
346 | * @offset_address: Serial ROM address offset value. | |
347 | * @data: Serial ROM value. | |
348 | */ | |
349 | static int pch_phub_write_serial_rom_val(struct pch_phub_reg *chip, | |
350 | unsigned int offset_address, u8 data) | |
351 | { | |
352 | int retval; | |
353 | unsigned int mem_addr; | |
354 | ||
275640b0 | 355 | mem_addr = chip->pch_mac_start_address + |
cf4ece53 MO |
356 | pch_phub_mac_offset[offset_address]; |
357 | ||
358 | retval = pch_phub_write_serial_rom(chip, mem_addr, data); | |
359 | ||
360 | return retval; | |
361 | } | |
362 | ||
363 | /* pch_phub_gbe_serial_rom_conf - makes Serial ROM header format configuration | |
364 | * for Gigabit Ethernet MAC address | |
365 | */ | |
366 | static int pch_phub_gbe_serial_rom_conf(struct pch_phub_reg *chip) | |
367 | { | |
368 | int retval; | |
369 | ||
370 | retval = pch_phub_write_serial_rom(chip, 0x0b, 0xbc); | |
371 | retval |= pch_phub_write_serial_rom(chip, 0x0a, 0x10); | |
372 | retval |= pch_phub_write_serial_rom(chip, 0x09, 0x01); | |
373 | retval |= pch_phub_write_serial_rom(chip, 0x08, 0x02); | |
374 | ||
375 | retval |= pch_phub_write_serial_rom(chip, 0x0f, 0x00); | |
376 | retval |= pch_phub_write_serial_rom(chip, 0x0e, 0x00); | |
377 | retval |= pch_phub_write_serial_rom(chip, 0x0d, 0x00); | |
378 | retval |= pch_phub_write_serial_rom(chip, 0x0c, 0x80); | |
379 | ||
380 | retval |= pch_phub_write_serial_rom(chip, 0x13, 0xbc); | |
381 | retval |= pch_phub_write_serial_rom(chip, 0x12, 0x10); | |
382 | retval |= pch_phub_write_serial_rom(chip, 0x11, 0x01); | |
383 | retval |= pch_phub_write_serial_rom(chip, 0x10, 0x18); | |
384 | ||
385 | retval |= pch_phub_write_serial_rom(chip, 0x1b, 0xbc); | |
386 | retval |= pch_phub_write_serial_rom(chip, 0x1a, 0x10); | |
387 | retval |= pch_phub_write_serial_rom(chip, 0x19, 0x01); | |
388 | retval |= pch_phub_write_serial_rom(chip, 0x18, 0x19); | |
389 | ||
390 | retval |= pch_phub_write_serial_rom(chip, 0x23, 0xbc); | |
391 | retval |= pch_phub_write_serial_rom(chip, 0x22, 0x10); | |
392 | retval |= pch_phub_write_serial_rom(chip, 0x21, 0x01); | |
393 | retval |= pch_phub_write_serial_rom(chip, 0x20, 0x3a); | |
394 | ||
395 | retval |= pch_phub_write_serial_rom(chip, 0x27, 0x01); | |
396 | retval |= pch_phub_write_serial_rom(chip, 0x26, 0x00); | |
397 | retval |= pch_phub_write_serial_rom(chip, 0x25, 0x00); | |
398 | retval |= pch_phub_write_serial_rom(chip, 0x24, 0x00); | |
399 | ||
400 | return retval; | |
401 | } | |
402 | ||
275640b0 TM |
403 | /* pch_phub_gbe_serial_rom_conf_mp - makes SerialROM header format configuration |
404 | * for Gigabit Ethernet MAC address | |
405 | */ | |
406 | static int pch_phub_gbe_serial_rom_conf_mp(struct pch_phub_reg *chip) | |
407 | { | |
408 | int retval; | |
409 | u32 offset_addr; | |
410 | ||
411 | offset_addr = 0x200; | |
412 | retval = pch_phub_write_serial_rom(chip, 0x03 + offset_addr, 0xbc); | |
413 | retval |= pch_phub_write_serial_rom(chip, 0x02 + offset_addr, 0x00); | |
414 | retval |= pch_phub_write_serial_rom(chip, 0x01 + offset_addr, 0x40); | |
415 | retval |= pch_phub_write_serial_rom(chip, 0x00 + offset_addr, 0x02); | |
416 | ||
417 | retval |= pch_phub_write_serial_rom(chip, 0x07 + offset_addr, 0x00); | |
418 | retval |= pch_phub_write_serial_rom(chip, 0x06 + offset_addr, 0x00); | |
419 | retval |= pch_phub_write_serial_rom(chip, 0x05 + offset_addr, 0x00); | |
420 | retval |= pch_phub_write_serial_rom(chip, 0x04 + offset_addr, 0x80); | |
421 | ||
422 | retval |= pch_phub_write_serial_rom(chip, 0x0b + offset_addr, 0xbc); | |
423 | retval |= pch_phub_write_serial_rom(chip, 0x0a + offset_addr, 0x00); | |
424 | retval |= pch_phub_write_serial_rom(chip, 0x09 + offset_addr, 0x40); | |
425 | retval |= pch_phub_write_serial_rom(chip, 0x08 + offset_addr, 0x18); | |
426 | ||
427 | retval |= pch_phub_write_serial_rom(chip, 0x13 + offset_addr, 0xbc); | |
428 | retval |= pch_phub_write_serial_rom(chip, 0x12 + offset_addr, 0x00); | |
429 | retval |= pch_phub_write_serial_rom(chip, 0x11 + offset_addr, 0x40); | |
430 | retval |= pch_phub_write_serial_rom(chip, 0x10 + offset_addr, 0x19); | |
431 | ||
432 | retval |= pch_phub_write_serial_rom(chip, 0x1b + offset_addr, 0xbc); | |
433 | retval |= pch_phub_write_serial_rom(chip, 0x1a + offset_addr, 0x00); | |
434 | retval |= pch_phub_write_serial_rom(chip, 0x19 + offset_addr, 0x40); | |
435 | retval |= pch_phub_write_serial_rom(chip, 0x18 + offset_addr, 0x3a); | |
436 | ||
437 | retval |= pch_phub_write_serial_rom(chip, 0x1f + offset_addr, 0x01); | |
438 | retval |= pch_phub_write_serial_rom(chip, 0x1e + offset_addr, 0x00); | |
439 | retval |= pch_phub_write_serial_rom(chip, 0x1d + offset_addr, 0x00); | |
440 | retval |= pch_phub_write_serial_rom(chip, 0x1c + offset_addr, 0x00); | |
441 | ||
442 | return retval; | |
443 | } | |
444 | ||
cf4ece53 MO |
445 | /** |
446 | * pch_phub_read_gbe_mac_addr() - Read Gigabit Ethernet MAC address | |
447 | * @offset_address: Gigabit Ethernet MAC address offset value. | |
448 | * @data: Buffer of the Gigabit Ethernet MAC address value. | |
449 | */ | |
450 | static void pch_phub_read_gbe_mac_addr(struct pch_phub_reg *chip, u8 *data) | |
451 | { | |
452 | int i; | |
453 | for (i = 0; i < ETH_ALEN; i++) | |
454 | pch_phub_read_serial_rom_val(chip, i, &data[i]); | |
455 | } | |
456 | ||
457 | /** | |
458 | * pch_phub_write_gbe_mac_addr() - Write MAC address | |
459 | * @offset_address: Gigabit Ethernet MAC address offset value. | |
460 | * @data: Gigabit Ethernet MAC address value. | |
461 | */ | |
462 | static int pch_phub_write_gbe_mac_addr(struct pch_phub_reg *chip, u8 *data) | |
463 | { | |
464 | int retval; | |
465 | int i; | |
466 | ||
275640b0 TM |
467 | if (chip->ioh_type == 1) /* EG20T */ |
468 | retval = pch_phub_gbe_serial_rom_conf(chip); | |
469 | else /* ML7223 */ | |
470 | retval = pch_phub_gbe_serial_rom_conf_mp(chip); | |
cf4ece53 MO |
471 | if (retval) |
472 | return retval; | |
473 | ||
474 | for (i = 0; i < ETH_ALEN; i++) { | |
475 | retval = pch_phub_write_serial_rom_val(chip, i, data[i]); | |
476 | if (retval) | |
477 | return retval; | |
478 | } | |
479 | ||
480 | return retval; | |
481 | } | |
482 | ||
483 | static ssize_t pch_phub_bin_read(struct file *filp, struct kobject *kobj, | |
484 | struct bin_attribute *attr, char *buf, | |
485 | loff_t off, size_t count) | |
486 | { | |
487 | unsigned int rom_signature; | |
488 | unsigned char rom_length; | |
489 | unsigned int tmp; | |
490 | unsigned int addr_offset; | |
491 | unsigned int orom_size; | |
492 | int ret; | |
493 | int err; | |
494 | ||
495 | struct pch_phub_reg *chip = | |
496 | dev_get_drvdata(container_of(kobj, struct device, kobj)); | |
497 | ||
498 | ret = mutex_lock_interruptible(&pch_phub_mutex); | |
499 | if (ret) { | |
500 | err = -ERESTARTSYS; | |
501 | goto return_err_nomutex; | |
502 | } | |
503 | ||
504 | /* Get Rom signature */ | |
275640b0 TM |
505 | pch_phub_read_serial_rom(chip, chip->pch_opt_rom_start_address, |
506 | (unsigned char *)&rom_signature); | |
cf4ece53 | 507 | rom_signature &= 0xff; |
275640b0 TM |
508 | pch_phub_read_serial_rom(chip, chip->pch_opt_rom_start_address + 1, |
509 | (unsigned char *)&tmp); | |
cf4ece53 MO |
510 | rom_signature |= (tmp & 0xff) << 8; |
511 | if (rom_signature == 0xAA55) { | |
275640b0 TM |
512 | pch_phub_read_serial_rom(chip, |
513 | chip->pch_opt_rom_start_address + 2, | |
514 | &rom_length); | |
cf4ece53 MO |
515 | orom_size = rom_length * 512; |
516 | if (orom_size < off) { | |
517 | addr_offset = 0; | |
518 | goto return_ok; | |
519 | } | |
520 | if (orom_size < count) { | |
521 | addr_offset = 0; | |
522 | goto return_ok; | |
523 | } | |
524 | ||
525 | for (addr_offset = 0; addr_offset < count; addr_offset++) { | |
275640b0 TM |
526 | pch_phub_read_serial_rom(chip, |
527 | chip->pch_opt_rom_start_address + addr_offset + off, | |
528 | &buf[addr_offset]); | |
cf4ece53 MO |
529 | } |
530 | } else { | |
531 | err = -ENODATA; | |
532 | goto return_err; | |
533 | } | |
534 | return_ok: | |
535 | mutex_unlock(&pch_phub_mutex); | |
536 | return addr_offset; | |
537 | ||
538 | return_err: | |
539 | mutex_unlock(&pch_phub_mutex); | |
540 | return_err_nomutex: | |
541 | return err; | |
542 | } | |
543 | ||
544 | static ssize_t pch_phub_bin_write(struct file *filp, struct kobject *kobj, | |
545 | struct bin_attribute *attr, | |
546 | char *buf, loff_t off, size_t count) | |
547 | { | |
548 | int err; | |
549 | unsigned int addr_offset; | |
550 | int ret; | |
551 | struct pch_phub_reg *chip = | |
552 | dev_get_drvdata(container_of(kobj, struct device, kobj)); | |
553 | ||
554 | ret = mutex_lock_interruptible(&pch_phub_mutex); | |
555 | if (ret) | |
556 | return -ERESTARTSYS; | |
557 | ||
558 | if (off > PCH_PHUB_OROM_SIZE) { | |
559 | addr_offset = 0; | |
560 | goto return_ok; | |
561 | } | |
562 | if (count > PCH_PHUB_OROM_SIZE) { | |
563 | addr_offset = 0; | |
564 | goto return_ok; | |
565 | } | |
566 | ||
567 | for (addr_offset = 0; addr_offset < count; addr_offset++) { | |
568 | if (PCH_PHUB_OROM_SIZE < off + addr_offset) | |
569 | goto return_ok; | |
570 | ||
275640b0 TM |
571 | ret = pch_phub_write_serial_rom(chip, |
572 | chip->pch_opt_rom_start_address + addr_offset + off, | |
573 | buf[addr_offset]); | |
cf4ece53 MO |
574 | if (ret) { |
575 | err = ret; | |
576 | goto return_err; | |
577 | } | |
578 | } | |
579 | ||
580 | return_ok: | |
581 | mutex_unlock(&pch_phub_mutex); | |
582 | return addr_offset; | |
583 | ||
584 | return_err: | |
585 | mutex_unlock(&pch_phub_mutex); | |
586 | return err; | |
587 | } | |
588 | ||
589 | static ssize_t show_pch_mac(struct device *dev, struct device_attribute *attr, | |
590 | char *buf) | |
591 | { | |
592 | u8 mac[8]; | |
593 | struct pch_phub_reg *chip = dev_get_drvdata(dev); | |
594 | ||
595 | pch_phub_read_gbe_mac_addr(chip, mac); | |
596 | ||
597 | return sprintf(buf, "%02x:%02x:%02x:%02x:%02x:%02x\n", | |
598 | mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]); | |
599 | } | |
600 | ||
601 | static ssize_t store_pch_mac(struct device *dev, struct device_attribute *attr, | |
602 | const char *buf, size_t count) | |
603 | { | |
604 | u8 mac[6]; | |
605 | struct pch_phub_reg *chip = dev_get_drvdata(dev); | |
606 | ||
607 | if (count != 18) | |
608 | return -EINVAL; | |
609 | ||
610 | sscanf(buf, "%02x:%02x:%02x:%02x:%02x:%02x", | |
611 | (u32 *)&mac[0], (u32 *)&mac[1], (u32 *)&mac[2], (u32 *)&mac[3], | |
612 | (u32 *)&mac[4], (u32 *)&mac[5]); | |
613 | ||
614 | pch_phub_write_gbe_mac_addr(chip, mac); | |
615 | ||
616 | return count; | |
617 | } | |
618 | ||
619 | static DEVICE_ATTR(pch_mac, S_IRUGO | S_IWUSR, show_pch_mac, store_pch_mac); | |
620 | ||
621 | static struct bin_attribute pch_bin_attr = { | |
622 | .attr = { | |
623 | .name = "pch_firmware", | |
624 | .mode = S_IRUGO | S_IWUSR, | |
625 | }, | |
626 | .size = PCH_PHUB_OROM_SIZE + 1, | |
627 | .read = pch_phub_bin_read, | |
628 | .write = pch_phub_bin_write, | |
629 | }; | |
630 | ||
631 | static int __devinit pch_phub_probe(struct pci_dev *pdev, | |
632 | const struct pci_device_id *id) | |
633 | { | |
634 | int retval; | |
635 | ||
636 | int ret; | |
da0d7f98 | 637 | ssize_t rom_size; |
cf4ece53 MO |
638 | struct pch_phub_reg *chip; |
639 | ||
640 | chip = kzalloc(sizeof(struct pch_phub_reg), GFP_KERNEL); | |
641 | if (chip == NULL) | |
642 | return -ENOMEM; | |
643 | ||
644 | ret = pci_enable_device(pdev); | |
645 | if (ret) { | |
646 | dev_err(&pdev->dev, | |
647 | "%s : pci_enable_device FAILED(ret=%d)", __func__, ret); | |
648 | goto err_pci_enable_dev; | |
649 | } | |
650 | dev_dbg(&pdev->dev, "%s : pci_enable_device returns %d\n", __func__, | |
651 | ret); | |
652 | ||
653 | ret = pci_request_regions(pdev, KBUILD_MODNAME); | |
654 | if (ret) { | |
655 | dev_err(&pdev->dev, | |
656 | "%s : pci_request_regions FAILED(ret=%d)", __func__, ret); | |
657 | goto err_req_regions; | |
658 | } | |
659 | dev_dbg(&pdev->dev, "%s : " | |
660 | "pci_request_regions returns %d\n", __func__, ret); | |
661 | ||
662 | chip->pch_phub_base_address = pci_iomap(pdev, 1, 0); | |
663 | ||
664 | ||
665 | if (chip->pch_phub_base_address == 0) { | |
666 | dev_err(&pdev->dev, "%s : pci_iomap FAILED", __func__); | |
667 | ret = -ENOMEM; | |
668 | goto err_pci_iomap; | |
669 | } | |
670 | dev_dbg(&pdev->dev, "%s : pci_iomap SUCCESS and value " | |
da0d7f98 GKH |
671 | "in pch_phub_base_address variable is %p\n", __func__, |
672 | chip->pch_phub_base_address); | |
cf4ece53 | 673 | |
275640b0 TM |
674 | if (id->driver_data != 3) { |
675 | chip->pch_phub_extrom_base_address =\ | |
676 | pci_map_rom(pdev, &rom_size); | |
677 | if (chip->pch_phub_extrom_base_address == 0) { | |
678 | dev_err(&pdev->dev, "%s: pci_map_rom FAILED", __func__); | |
679 | ret = -ENOMEM; | |
680 | goto err_pci_map; | |
681 | } | |
682 | dev_dbg(&pdev->dev, "%s : " | |
683 | "pci_map_rom SUCCESS and value in " | |
684 | "pch_phub_extrom_base_address variable is %p\n", | |
685 | __func__, chip->pch_phub_extrom_base_address); | |
cf4ece53 | 686 | } |
cf4ece53 | 687 | |
275640b0 | 688 | if (id->driver_data == 1) { /* EG20T PCH */ |
c47dda7d TM |
689 | retval = sysfs_create_file(&pdev->dev.kobj, |
690 | &dev_attr_pch_mac.attr); | |
691 | if (retval) | |
692 | goto err_sysfs_create; | |
cf4ece53 | 693 | |
c47dda7d TM |
694 | retval = sysfs_create_bin_file(&pdev->dev.kobj, &pch_bin_attr); |
695 | if (retval) | |
696 | goto exit_bin_attr; | |
697 | ||
698 | pch_phub_read_modify_write_reg(chip, | |
699 | (unsigned int)CLKCFG_REG_OFFSET, | |
700 | CLKCFG_CAN_50MHZ, | |
701 | CLKCFG_CANCLK_MASK); | |
702 | ||
6ae705b2 DT |
703 | /* quirk for CM-iTC board */ |
704 | if (strstr(dmi_get_system_info(DMI_BOARD_NAME), "CM-iTC")) | |
705 | pch_phub_read_modify_write_reg(chip, | |
706 | (unsigned int)CLKCFG_REG_OFFSET, | |
707 | CLKCFG_UART_48MHZ | CLKCFG_BAUDDIV | | |
708 | CLKCFG_PLL2VCO | CLKCFG_UARTCLKSEL, | |
709 | CLKCFG_UART_MASK); | |
710 | ||
c47dda7d TM |
711 | /* set the prefech value */ |
712 | iowrite32(0x000affaa, chip->pch_phub_base_address + 0x14); | |
713 | /* set the interrupt delay value */ | |
714 | iowrite32(0x25, chip->pch_phub_base_address + 0x44); | |
275640b0 TM |
715 | chip->pch_opt_rom_start_address = PCH_PHUB_ROM_START_ADDR_EG20T; |
716 | chip->pch_mac_start_address = PCH_PHUB_MAC_START_ADDR_EG20T; | |
717 | } else if (id->driver_data == 2) { /* ML7213 IOH */ | |
c47dda7d TM |
718 | retval = sysfs_create_bin_file(&pdev->dev.kobj, &pch_bin_attr); |
719 | if (retval) | |
720 | goto err_sysfs_create; | |
721 | /* set the prefech value | |
722 | * Device2(USB OHCI #1/ USB EHCI #1/ USB Device):a | |
723 | * Device4(SDIO #0,1,2):f | |
724 | * Device6(SATA 2):f | |
725 | * Device8(USB OHCI #0/ USB EHCI #0):a | |
726 | */ | |
727 | iowrite32(0x000affa0, chip->pch_phub_base_address + 0x14); | |
275640b0 TM |
728 | chip->pch_opt_rom_start_address =\ |
729 | PCH_PHUB_ROM_START_ADDR_ML7213; | |
730 | } else if (id->driver_data == 3) { /* ML7223 IOH Bus-m*/ | |
731 | /* set the prefech value | |
732 | * Device8(GbE) | |
733 | */ | |
734 | iowrite32(0x000a0000, chip->pch_phub_base_address + 0x14); | |
735 | chip->pch_opt_rom_start_address =\ | |
736 | PCH_PHUB_ROM_START_ADDR_ML7223; | |
737 | chip->pch_mac_start_address = PCH_PHUB_MAC_START_ADDR_ML7223; | |
738 | } else if (id->driver_data == 4) { /* ML7223 IOH Bus-n*/ | |
739 | retval = sysfs_create_file(&pdev->dev.kobj, | |
740 | &dev_attr_pch_mac.attr); | |
741 | if (retval) | |
742 | goto err_sysfs_create; | |
743 | retval = sysfs_create_bin_file(&pdev->dev.kobj, &pch_bin_attr); | |
744 | if (retval) | |
745 | goto exit_bin_attr; | |
746 | /* set the prefech value | |
747 | * Device2(USB OHCI #0,1,2,3/ USB EHCI #0):a | |
748 | * Device4(SDIO #0,1):f | |
749 | * Device6(SATA 2):f | |
750 | */ | |
751 | iowrite32(0x0000ffa0, chip->pch_phub_base_address + 0x14); | |
752 | /* set the interrupt delay value */ | |
753 | iowrite32(0x25, chip->pch_phub_base_address + 0x140); | |
754 | chip->pch_opt_rom_start_address =\ | |
755 | PCH_PHUB_ROM_START_ADDR_ML7223; | |
756 | chip->pch_mac_start_address = PCH_PHUB_MAC_START_ADDR_ML7223; | |
c47dda7d | 757 | } |
275640b0 TM |
758 | |
759 | chip->ioh_type = id->driver_data; | |
c47dda7d | 760 | pci_set_drvdata(pdev, chip); |
cf4ece53 MO |
761 | |
762 | return 0; | |
763 | exit_bin_attr: | |
764 | sysfs_remove_file(&pdev->dev.kobj, &dev_attr_pch_mac.attr); | |
765 | ||
766 | err_sysfs_create: | |
767 | pci_unmap_rom(pdev, chip->pch_phub_extrom_base_address); | |
768 | err_pci_map: | |
769 | pci_iounmap(pdev, chip->pch_phub_base_address); | |
770 | err_pci_iomap: | |
771 | pci_release_regions(pdev); | |
772 | err_req_regions: | |
773 | pci_disable_device(pdev); | |
774 | err_pci_enable_dev: | |
775 | kfree(chip); | |
776 | dev_err(&pdev->dev, "%s returns %d\n", __func__, ret); | |
777 | return ret; | |
778 | } | |
779 | ||
780 | static void __devexit pch_phub_remove(struct pci_dev *pdev) | |
781 | { | |
782 | struct pch_phub_reg *chip = pci_get_drvdata(pdev); | |
783 | ||
784 | sysfs_remove_file(&pdev->dev.kobj, &dev_attr_pch_mac.attr); | |
785 | sysfs_remove_bin_file(&pdev->dev.kobj, &pch_bin_attr); | |
786 | pci_unmap_rom(pdev, chip->pch_phub_extrom_base_address); | |
787 | pci_iounmap(pdev, chip->pch_phub_base_address); | |
788 | pci_release_regions(pdev); | |
789 | pci_disable_device(pdev); | |
790 | kfree(chip); | |
791 | } | |
792 | ||
793 | #ifdef CONFIG_PM | |
794 | ||
795 | static int pch_phub_suspend(struct pci_dev *pdev, pm_message_t state) | |
796 | { | |
797 | int ret; | |
798 | ||
799 | pch_phub_save_reg_conf(pdev); | |
800 | ret = pci_save_state(pdev); | |
801 | if (ret) { | |
802 | dev_err(&pdev->dev, | |
803 | " %s -pci_save_state returns %d\n", __func__, ret); | |
804 | return ret; | |
805 | } | |
806 | pci_enable_wake(pdev, PCI_D3hot, 0); | |
807 | pci_disable_device(pdev); | |
808 | pci_set_power_state(pdev, pci_choose_state(pdev, state)); | |
809 | ||
810 | return 0; | |
811 | } | |
812 | ||
813 | static int pch_phub_resume(struct pci_dev *pdev) | |
814 | { | |
815 | int ret; | |
816 | ||
817 | pci_set_power_state(pdev, PCI_D0); | |
818 | pci_restore_state(pdev); | |
819 | ret = pci_enable_device(pdev); | |
820 | if (ret) { | |
821 | dev_err(&pdev->dev, | |
822 | "%s-pci_enable_device failed(ret=%d) ", __func__, ret); | |
823 | return ret; | |
824 | } | |
825 | ||
826 | pci_enable_wake(pdev, PCI_D3hot, 0); | |
827 | pch_phub_restore_reg_conf(pdev); | |
828 | ||
829 | return 0; | |
830 | } | |
831 | #else | |
832 | #define pch_phub_suspend NULL | |
833 | #define pch_phub_resume NULL | |
834 | #endif /* CONFIG_PM */ | |
835 | ||
836 | static struct pci_device_id pch_phub_pcidev_id[] = { | |
c47dda7d TM |
837 | { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_PCH1_PHUB), 1, }, |
838 | { PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ROHM_ML7213_PHUB), 2, }, | |
275640b0 TM |
839 | { PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ROHM_ML7223_mPHUB), 3, }, |
840 | { PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ROHM_ML7223_nPHUB), 4, }, | |
c47dda7d | 841 | { } |
cf4ece53 | 842 | }; |
b2595142 | 843 | MODULE_DEVICE_TABLE(pci, pch_phub_pcidev_id); |
cf4ece53 MO |
844 | |
845 | static struct pci_driver pch_phub_driver = { | |
846 | .name = "pch_phub", | |
847 | .id_table = pch_phub_pcidev_id, | |
848 | .probe = pch_phub_probe, | |
849 | .remove = __devexit_p(pch_phub_remove), | |
850 | .suspend = pch_phub_suspend, | |
851 | .resume = pch_phub_resume | |
852 | }; | |
853 | ||
854 | static int __init pch_phub_pci_init(void) | |
855 | { | |
856 | return pci_register_driver(&pch_phub_driver); | |
857 | } | |
858 | ||
859 | static void __exit pch_phub_pci_exit(void) | |
860 | { | |
861 | pci_unregister_driver(&pch_phub_driver); | |
862 | } | |
863 | ||
864 | module_init(pch_phub_pci_init); | |
865 | module_exit(pch_phub_pci_exit); | |
866 | ||
275640b0 | 867 | MODULE_DESCRIPTION("Intel EG20T PCH/OKI SEMICONDUCTOR IOH(ML7213/ML7223) PHUB"); |
cf4ece53 | 868 | MODULE_LICENSE("GPL"); |