pch_phub.c revision 2b934c6236983392d01bef22e43af3051cac16f5
1/* 2 * Copyright (C) 2010 OKI SEMICONDUCTOR CO., LTD. 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> 30#include <linux/dmi.h> 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 */ 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 42 (Intel EG20T PCH)*/ 43#define PCH_PHUB_ROM_START_ADDR_ML7213 0x400 /* ROM data area start address 44 offset(OKI SEMICONDUCTOR ML7213) 45 */ 46#define PCH_PHUB_ROM_START_ADDR_ML7223 0x400 /* ROM data area start address 47 offset(OKI SEMICONDUCTOR ML7223) 48 */ 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 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) 63 64/* Macros for ML7213 */ 65#define PCI_VENDOR_ID_ROHM 0x10db 66#define PCI_DEVICE_ID_ROHM_ML7213_PHUB 0x801A 67 68/* Macros for ML7213 */ 69#define PCI_VENDOR_ID_ROHM 0x10db 70#define PCI_DEVICE_ID_ROHM_ML7213_PHUB 0x801A 71 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 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 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 116 */ 117struct 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; 133 u32 pch_mac_start_address; 134 u32 pch_opt_rom_start_address; 135 int ioh_type; 136}; 137 138/* SROM SPEC for MAC address assignment offset */ 139static const int pch_phub_mac_offset[ETH_ALEN] = {0x3, 0x2, 0x1, 0x0, 0xb, 0xa}; 140 141static 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 */ 149static 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 */ 158static 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 */ 217static 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 */ 281static 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 */ 295static 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 */ 333static 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; 337 338 mem_addr = chip->pch_mac_start_address + 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 */ 349static 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; 354 355 mem_addr = chip->pch_mac_start_address + 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 */ 366static 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} 402 403/* pch_phub_gbe_serial_rom_conf_mp - makes SerialROM header format configuration 404 * for Gigabit Ethernet MAC address 405 */ 406static 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} 444 445/** 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 */ 450static 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 */ 462static int pch_phub_write_gbe_mac_addr(struct pch_phub_reg *chip, u8 *data) 463{ 464 int retval; 465 int i; 466 467 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); 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 483static 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 */ 505 pch_phub_read_serial_rom(chip, chip->pch_opt_rom_start_address, 506 (unsigned char *)&rom_signature); 507 rom_signature &= 0xff; 508 pch_phub_read_serial_rom(chip, chip->pch_opt_rom_start_address + 1, 509 (unsigned char *)&tmp); 510 rom_signature |= (tmp & 0xff) << 8; 511 if (rom_signature == 0xAA55) { 512 pch_phub_read_serial_rom(chip, 513 chip->pch_opt_rom_start_address + 2, 514 &rom_length); 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++) { 526 pch_phub_read_serial_rom(chip, 527 chip->pch_opt_rom_start_address + addr_offset + off, 528 &buf[addr_offset]); 529 } 530 } else { 531 err = -ENODATA; 532 goto return_err; 533 } 534return_ok: 535 mutex_unlock(&pch_phub_mutex); 536 return addr_offset; 537 538return_err: 539 mutex_unlock(&pch_phub_mutex); 540return_err_nomutex: 541 return err; 542} 543 544static 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; 570 571 ret = pch_phub_write_serial_rom(chip, 572 chip->pch_opt_rom_start_address + addr_offset + off, 573 buf[addr_offset]); 574 if (ret) { 575 err = ret; 576 goto return_err; 577 } 578 } 579 580return_ok: 581 mutex_unlock(&pch_phub_mutex); 582 return addr_offset; 583 584return_err: 585 mutex_unlock(&pch_phub_mutex); 586 return err; 587} 588 589static 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 601static 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 619static DEVICE_ATTR(pch_mac, S_IRUGO | S_IWUSR, show_pch_mac, store_pch_mac); 620 621static 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 631static int __devinit pch_phub_probe(struct pci_dev *pdev, 632 const struct pci_device_id *id) 633{ 634 int retval; 635 636 int ret; 637 ssize_t rom_size; 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 " 671 "in pch_phub_base_address variable is %p\n", __func__, 672 chip->pch_phub_base_address); 673 674 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); 686 } 687 688 if (id->driver_data == 1) { /* EG20T PCH */ 689 const char *board_name; 690 691 retval = sysfs_create_file(&pdev->dev.kobj, 692 &dev_attr_pch_mac.attr); 693 if (retval) 694 goto err_sysfs_create; 695 696 retval = sysfs_create_bin_file(&pdev->dev.kobj, &pch_bin_attr); 697 if (retval) 698 goto exit_bin_attr; 699 700 pch_phub_read_modify_write_reg(chip, 701 (unsigned int)CLKCFG_REG_OFFSET, 702 CLKCFG_CAN_50MHZ, 703 CLKCFG_CANCLK_MASK); 704 705 /* quirk for CM-iTC board */ 706 board_name = dmi_get_system_info(DMI_BOARD_NAME); 707 if (board_name && strstr(board_name, "CM-iTC")) 708 pch_phub_read_modify_write_reg(chip, 709 (unsigned int)CLKCFG_REG_OFFSET, 710 CLKCFG_UART_48MHZ | CLKCFG_BAUDDIV | 711 CLKCFG_PLL2VCO | CLKCFG_UARTCLKSEL, 712 CLKCFG_UART_MASK); 713 714 /* set the prefech value */ 715 iowrite32(0x000affaa, chip->pch_phub_base_address + 0x14); 716 /* set the interrupt delay value */ 717 iowrite32(0x25, chip->pch_phub_base_address + 0x44); 718 chip->pch_opt_rom_start_address = PCH_PHUB_ROM_START_ADDR_EG20T; 719 chip->pch_mac_start_address = PCH_PHUB_MAC_START_ADDR_EG20T; 720 } else if (id->driver_data == 2) { /* ML7213 IOH */ 721 retval = sysfs_create_bin_file(&pdev->dev.kobj, &pch_bin_attr); 722 if (retval) 723 goto err_sysfs_create; 724 /* set the prefech value 725 * Device2(USB OHCI #1/ USB EHCI #1/ USB Device):a 726 * Device4(SDIO #0,1,2):f 727 * Device6(SATA 2):f 728 * Device8(USB OHCI #0/ USB EHCI #0):a 729 */ 730 iowrite32(0x000affa0, chip->pch_phub_base_address + 0x14); 731 chip->pch_opt_rom_start_address =\ 732 PCH_PHUB_ROM_START_ADDR_ML7213; 733 } else if (id->driver_data == 3) { /* ML7223 IOH Bus-m*/ 734 /* set the prefech value 735 * Device8(GbE) 736 */ 737 iowrite32(0x000a0000, chip->pch_phub_base_address + 0x14); 738 chip->pch_opt_rom_start_address =\ 739 PCH_PHUB_ROM_START_ADDR_ML7223; 740 chip->pch_mac_start_address = PCH_PHUB_MAC_START_ADDR_ML7223; 741 } else if (id->driver_data == 4) { /* ML7223 IOH Bus-n*/ 742 retval = sysfs_create_file(&pdev->dev.kobj, 743 &dev_attr_pch_mac.attr); 744 if (retval) 745 goto err_sysfs_create; 746 retval = sysfs_create_bin_file(&pdev->dev.kobj, &pch_bin_attr); 747 if (retval) 748 goto exit_bin_attr; 749 /* set the prefech value 750 * Device2(USB OHCI #0,1,2,3/ USB EHCI #0):a 751 * Device4(SDIO #0,1):f 752 * Device6(SATA 2):f 753 */ 754 iowrite32(0x0000ffa0, chip->pch_phub_base_address + 0x14); 755 /* set the interrupt delay value */ 756 iowrite32(0x25, chip->pch_phub_base_address + 0x140); 757 chip->pch_opt_rom_start_address =\ 758 PCH_PHUB_ROM_START_ADDR_ML7223; 759 chip->pch_mac_start_address = PCH_PHUB_MAC_START_ADDR_ML7223; 760 } 761 762 chip->ioh_type = id->driver_data; 763 pci_set_drvdata(pdev, chip); 764 765 return 0; 766exit_bin_attr: 767 sysfs_remove_file(&pdev->dev.kobj, &dev_attr_pch_mac.attr); 768 769err_sysfs_create: 770 pci_unmap_rom(pdev, chip->pch_phub_extrom_base_address); 771err_pci_map: 772 pci_iounmap(pdev, chip->pch_phub_base_address); 773err_pci_iomap: 774 pci_release_regions(pdev); 775err_req_regions: 776 pci_disable_device(pdev); 777err_pci_enable_dev: 778 kfree(chip); 779 dev_err(&pdev->dev, "%s returns %d\n", __func__, ret); 780 return ret; 781} 782 783static void __devexit pch_phub_remove(struct pci_dev *pdev) 784{ 785 struct pch_phub_reg *chip = pci_get_drvdata(pdev); 786 787 sysfs_remove_file(&pdev->dev.kobj, &dev_attr_pch_mac.attr); 788 sysfs_remove_bin_file(&pdev->dev.kobj, &pch_bin_attr); 789 pci_unmap_rom(pdev, chip->pch_phub_extrom_base_address); 790 pci_iounmap(pdev, chip->pch_phub_base_address); 791 pci_release_regions(pdev); 792 pci_disable_device(pdev); 793 kfree(chip); 794} 795 796#ifdef CONFIG_PM 797 798static int pch_phub_suspend(struct pci_dev *pdev, pm_message_t state) 799{ 800 int ret; 801 802 pch_phub_save_reg_conf(pdev); 803 ret = pci_save_state(pdev); 804 if (ret) { 805 dev_err(&pdev->dev, 806 " %s -pci_save_state returns %d\n", __func__, ret); 807 return ret; 808 } 809 pci_enable_wake(pdev, PCI_D3hot, 0); 810 pci_disable_device(pdev); 811 pci_set_power_state(pdev, pci_choose_state(pdev, state)); 812 813 return 0; 814} 815 816static int pch_phub_resume(struct pci_dev *pdev) 817{ 818 int ret; 819 820 pci_set_power_state(pdev, PCI_D0); 821 pci_restore_state(pdev); 822 ret = pci_enable_device(pdev); 823 if (ret) { 824 dev_err(&pdev->dev, 825 "%s-pci_enable_device failed(ret=%d) ", __func__, ret); 826 return ret; 827 } 828 829 pci_enable_wake(pdev, PCI_D3hot, 0); 830 pch_phub_restore_reg_conf(pdev); 831 832 return 0; 833} 834#else 835#define pch_phub_suspend NULL 836#define pch_phub_resume NULL 837#endif /* CONFIG_PM */ 838 839static struct pci_device_id pch_phub_pcidev_id[] = { 840 { PCI_VDEVICE(INTEL, PCI_DEVICE_ID_PCH1_PHUB), 1, }, 841 { PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ROHM_ML7213_PHUB), 2, }, 842 { PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ROHM_ML7223_mPHUB), 3, }, 843 { PCI_VDEVICE(ROHM, PCI_DEVICE_ID_ROHM_ML7223_nPHUB), 4, }, 844 { } 845}; 846MODULE_DEVICE_TABLE(pci, pch_phub_pcidev_id); 847 848static struct pci_driver pch_phub_driver = { 849 .name = "pch_phub", 850 .id_table = pch_phub_pcidev_id, 851 .probe = pch_phub_probe, 852 .remove = __devexit_p(pch_phub_remove), 853 .suspend = pch_phub_suspend, 854 .resume = pch_phub_resume 855}; 856 857static int __init pch_phub_pci_init(void) 858{ 859 return pci_register_driver(&pch_phub_driver); 860} 861 862static void __exit pch_phub_pci_exit(void) 863{ 864 pci_unregister_driver(&pch_phub_driver); 865} 866 867module_init(pch_phub_pci_init); 868module_exit(pch_phub_pci_exit); 869 870MODULE_DESCRIPTION("Intel EG20T PCH/OKI SEMICONDUCTOR IOH(ML7213/ML7223) PHUB"); 871MODULE_LICENSE("GPL"); 872