target/linux/lantiq/patches-3.8/0037-owrt-lantiq-wifi-and-ethernet-eeprom-handling.patch

   1 From 0c9b05716ac0e597ae0f81a96ff68e54716decc9 Mon Sep 17 00:00:00 2001
   2 From: John Crispin <blogic@openwrt.org>
   3 Date: Wed, 13 Mar 2013 10:02:58 +0100
   4 Subject: [PATCH 37/40] owrt: lantiq: wifi and ethernet eeprom handling
   5
   6 ---
   7  arch/mips/include/asm/mach-lantiq/pci-ath-fixup.h  |    6 +
   8  .../mips/include/asm/mach-lantiq/xway/lantiq_soc.h |    3 +
   9  arch/mips/lantiq/xway/Makefile                     |    3 +
  10  arch/mips/lantiq/xway/ath_eep.c                    |  206 ++++++++++++++++++++
  11  arch/mips/lantiq/xway/eth_mac.c                    |   76 ++++++++
  12  arch/mips/lantiq/xway/pci-ath-fixup.c              |  109 +++++++++++
  13  arch/mips/lantiq/xway/rt_eep.c                     |   60 ++++++
  14  drivers/net/ethernet/lantiq_etop.c                 |   10 +-
  15  8 files changed, 469 insertions(+), 4 deletions(-)
  16  create mode 100644 arch/mips/include/asm/mach-lantiq/pci-ath-fixup.h
  17  create mode 100644 arch/mips/lantiq/xway/ath_eep.c
  18  create mode 100644 arch/mips/lantiq/xway/eth_mac.c
  19  create mode 100644 arch/mips/lantiq/xway/pci-ath-fixup.c
  20  create mode 100644 arch/mips/lantiq/xway/rt_eep.c
  21
  22 --- /dev/null
  23 +++ b/arch/mips/include/asm/mach-lantiq/pci-ath-fixup.h
  24 @@ -0,0 +1,6 @@
  25 +#ifndef _PCI_ATH_FIXUP
  26 +#define _PCI_ATH_FIXUP
  27 +
  28 +void ltq_pci_ath_fixup(unsigned slot, u16 *cal_data) __init;
  29 +
  30 +#endif /* _PCI_ATH_FIXUP */
  31 --- a/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
  32 +++ b/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
  33 @@ -90,5 +90,8 @@ int xrx200_gphy_boot(struct device *dev,
  34  extern void ltq_pmu_enable(unsigned int module);
  35  extern void ltq_pmu_disable(unsigned int module);
  36
  37 +/* allow the ethernet driver to load a flash mapped mac addr */
  38 +const u8* ltq_get_eth_mac(void);
  39 +
  40  #endif /* CONFIG_SOC_TYPE_XWAY */
  41  #endif /* _LTQ_XWAY_H__ */
  42 --- a/arch/mips/lantiq/xway/Makefile
  43 +++ b/arch/mips/lantiq/xway/Makefile
  44 @@ -1,3 +1,6 @@
  45  obj-y := prom.o sysctrl.o clk.o reset.o dma.o gptu.o dcdc.o
  46
  47 +obj-y += eth_mac.o
  48 +obj-$(CONFIG_PCI) += ath_eep.o rt_eep.o pci-ath-fixup.o
  49 +
  50  obj-$(CONFIG_XRX200_PHY_FW) += xrx200_phy_fw.o
  51 --- /dev/null
  52 +++ b/arch/mips/lantiq/xway/ath_eep.c
  53 @@ -0,0 +1,206 @@
  54 +/*
  55 + *  Copyright (C) 2011 Luca Olivetti <luca@ventoso.org>
  56 + *  Copyright (C) 2011 John Crispin <blogic@openwrt.org>
  57 + *  Copyright (C) 2011 Andrej Vlašić <andrej.vlasic0@gmail.com>
  58 + *  Copyright (C) 2013 Álvaro Fernández Rojas <noltari@gmail.com>
  59 + *
  60 + *  This program is free software; you can redistribute it and/or modify it
  61 + *  under the terms of the GNU General Public License version 2 as published
  62 + *  by the Free Software Foundation.
  63 + */
  64 +
  65 +#include <linux/init.h>
  66 +#include <linux/module.h>
  67 +#include <linux/platform_device.h>
  68 +#include <linux/etherdevice.h>
  69 +#include <linux/ath5k_platform.h>
  70 +#include <linux/ath9k_platform.h>
  71 +#include <linux/pci.h>
  72 +#include <pci-ath-fixup.h>
  73 +
  74 +extern int (*ltq_pci_plat_dev_init)(struct pci_dev *dev);
  75 +struct ath5k_platform_data ath5k_pdata;
  76 +struct ath9k_platform_data ath9k_pdata = {
  77 +       .led_pin = -1,
  78 +};
  79 +static u16 ath5k_eeprom_data[ATH5K_PLAT_EEP_MAX_WORDS];
  80 +static u8 athxk_eeprom_mac[6];
  81 +
  82 +static int ath9k_pci_plat_dev_init(struct pci_dev *dev)
  83 +{
  84 +       dev->dev.platform_data = &ath9k_pdata;
  85 +       return 0;
  86 +}
  87 +
  88 +int __init of_ath9k_eeprom_probe(struct platform_device *pdev)
  89 +{
  90 +       struct device_node *np = pdev->dev.of_node;
  91 +       struct resource *eep_res, *mac_res;
  92 +       void __iomem *eep, *mac;
  93 +       int mac_offset;
  94 +       u32 mac_inc = 0, pci_slot = 0;
  95 +       int i;
  96 +       u16 *eepdata, sum, el;
  97 +
  98 +       eep_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
  99 +       mac_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
 100 +
 101 +       if (!eep_res) {
 102 +               dev_err(&pdev->dev, "failed to load eeprom address\n");
 103 +               return -ENODEV;
 104 +       }
 105 +       if (resource_size(eep_res) != ATH9K_PLAT_EEP_MAX_WORDS) {
 106 +               dev_err(&pdev->dev, "eeprom has an invalid size\n");
 107 +               return -EINVAL;
 108 +       }
 109 +
 110 +       eep = ioremap(eep_res->start, resource_size(eep_res));
 111 +       memcpy_fromio(ath9k_pdata.eeprom_data, eep, ATH9K_PLAT_EEP_MAX_WORDS);
 112 +
 113 +       if (of_find_property(np, "ath,eep-swap", NULL)) {
 114 +               ath9k_pdata.endian_check = true;
 115 +
 116 +               dev_info(&pdev->dev, "endian check enabled.\n");
 117 +       }
 118 +
 119 +       if (of_find_property(np, "ath,eep-csum", NULL)) {
 120 +               sum = ath9k_pdata.eeprom_data[0x200>>1];
 121 +               el = sum / sizeof(u16) - 2;  /* skip length and (old) checksum */
 122 +               eepdata = (u16 *) (&ath9k_pdata.eeprom_data[0x204>>1]); /* after checksum */
 123 +               for (i = 0; i < el; i++)
 124 +                       sum ^= *eepdata++;
 125 +               sum ^= 0xffff;
 126 +               ath9k_pdata.eeprom_data[0x202>>1] = sum;
 127 +
 128 +               dev_info(&pdev->dev, "checksum fixed.\n");
 129 +       }
 130 +
 131 +       if (!of_property_read_u32(np, "ath,mac-offset", &mac_offset)) {
 132 +               memcpy_fromio(athxk_eeprom_mac, (void*) ath9k_pdata.eeprom_data, 6);
 133 +       } else if (mac_res) {
 134 +               if (resource_size(mac_res) != 6) {
 135 +                       dev_err(&pdev->dev, "mac has an invalid size\n");
 136 +                       return -EINVAL;
 137 +               }
 138 +               mac = ioremap(mac_res->start, resource_size(mac_res));
 139 +               memcpy_fromio(athxk_eeprom_mac, mac, 6);
 140 +       } else {
 141 +               dev_warn(&pdev->dev, "using random mac\n");
 142 +               random_ether_addr(athxk_eeprom_mac);
 143 +       }
 144 +
 145 +       if (!of_property_read_u32(np, "ath,mac-increment", &mac_inc))
 146 +               athxk_eeprom_mac[5] += mac_inc;
 147 +
 148 +       ath9k_pdata.macaddr = athxk_eeprom_mac;
 149 +       ltq_pci_plat_dev_init = ath9k_pci_plat_dev_init;
 150 +
 151 +       if (!of_property_read_u32(np, "ath,pci-slot", &pci_slot)) {
 152 +               ltq_pci_ath_fixup(pci_slot, ath9k_pdata.eeprom_data);
 153 +
 154 +               dev_info(&pdev->dev, "pci slot: %u\n", pci_slot);
 155 +       }
 156 +
 157 +       dev_info(&pdev->dev, "loaded ath9k eeprom\n");
 158 +
 159 +       return 0;
 160 +}
 161 +
 162 +static struct of_device_id ath9k_eeprom_ids[] = {
 163 +       { .compatible = "ath9k,eeprom" },
 164 +       { }
 165 +};
 166 +
 167 +static struct platform_driver ath9k_eeprom_driver = {
 168 +       .driver         = {
 169 +               .name           = "ath9k,eeprom",
 170 +               .owner  = THIS_MODULE,
 171 +               .of_match_table = of_match_ptr(ath9k_eeprom_ids),
 172 +       },
 173 +};
 174 +
 175 +static int __init of_ath9k_eeprom_init(void)
 176 +{
 177 +       return platform_driver_probe(&ath9k_eeprom_driver, of_ath9k_eeprom_probe);
 178 +}
 179 +arch_initcall(of_ath9k_eeprom_init);
 180 +
 181 +
 182 +static int ath5k_pci_plat_dev_init(struct pci_dev *dev)
 183 +{
 184 +       dev->dev.platform_data = &ath5k_pdata;
 185 +       return 0;
 186 +}
 187 +
 188 +int __init of_ath5k_eeprom_probe(struct platform_device *pdev)
 189 +{
 190 +       struct device_node *np = pdev->dev.of_node;
 191 +       struct resource *eep_res, *mac_res;
 192 +       void __iomem *eep, *mac;
 193 +       int mac_offset;
 194 +       u32 mac_inc = 0;
 195 +       int i;
 196 +
 197 +       eep_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 198 +       mac_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
 199 +
 200 +       if (!eep_res) {
 201 +               dev_err(&pdev->dev, "failed to load eeprom address\n");
 202 +               return -ENODEV;
 203 +       }
 204 +       if (resource_size(eep_res) != ATH5K_PLAT_EEP_MAX_WORDS) {
 205 +               dev_err(&pdev->dev, "eeprom has an invalid size\n");
 206 +               return -EINVAL;
 207 +       }
 208 +
 209 +       eep = ioremap(eep_res->start, resource_size(eep_res));
 210 +       memcpy_fromio(ath5k_eeprom_data, eep, ATH5K_PLAT_EEP_MAX_WORDS);
 211 +
 212 +       if (of_find_property(np, "ath,eep-swap", NULL))
 213 +               for (i = 0; i < (ATH5K_PLAT_EEP_MAX_WORDS >> 1); i++)
 214 +                               ath5k_eeprom_data[i] = swab16(ath5k_eeprom_data[i]);
 215 +
 216 +       if (!of_property_read_u32(np, "ath,mac-offset", &mac_offset)) {
 217 +               memcpy_fromio(athxk_eeprom_mac, (void*) ath5k_eeprom_data, 6);
 218 +       } else if (mac_res) {
 219 +               if (resource_size(mac_res) != 6) {
 220 +                       dev_err(&pdev->dev, "mac has an invalid size\n");
 221 +                       return -EINVAL;
 222 +               }
 223 +               mac = ioremap(mac_res->start, resource_size(mac_res));
 224 +               memcpy_fromio(athxk_eeprom_mac, mac, 6);
 225 +       } else {
 226 +               dev_warn(&pdev->dev, "using random mac\n");
 227 +               random_ether_addr(athxk_eeprom_mac);
 228 +       }
 229 +
 230 +       if (!of_property_read_u32(np, "ath,mac-increment", &mac_inc))
 231 +               athxk_eeprom_mac[5] += mac_inc;
 232 +
 233 +       ath5k_pdata.eeprom_data = ath5k_eeprom_data;
 234 +       ath5k_pdata.macaddr = athxk_eeprom_mac;
 235 +       ltq_pci_plat_dev_init = ath5k_pci_plat_dev_init;
 236 +
 237 +       dev_info(&pdev->dev, "loaded ath5k eeprom\n");
 238 +
 239 +       return 0;
 240 +}
 241 +
 242 +static struct of_device_id ath5k_eeprom_ids[] = {
 243 +       { .compatible = "ath5k,eeprom" },
 244 +       { }
 245 +};
 246 +
 247 +static struct platform_driver ath5k_eeprom_driver = {
 248 +       .driver         = {
 249 +               .name           = "ath5k,eeprom",
 250 +               .owner  = THIS_MODULE,
 251 +               .of_match_table = of_match_ptr(ath5k_eeprom_ids),
 252 +       },
 253 +};
 254 +
 255 +static int __init of_ath5k_eeprom_init(void)
 256 +{
 257 +       return platform_driver_probe(&ath5k_eeprom_driver, of_ath5k_eeprom_probe);
 258 +}
 259 +device_initcall(of_ath5k_eeprom_init);
 260 --- /dev/null
 261 +++ b/arch/mips/lantiq/xway/eth_mac.c
 262 @@ -0,0 +1,76 @@
 263 +/*
 264 + *  Copyright (C) 2012 John Crispin <blogic@openwrt.org>
 265 + *
 266 + *  This program is free software; you can redistribute it and/or modify it
 267 + *  under the terms of the GNU General Public License version 2 as published
 268 + *  by the Free Software Foundation.
 269 + */
 270 +
 271 +#include <linux/init.h>
 272 +#include <linux/module.h>
 273 +#include <linux/of_platform.h>
 274 +#include <linux/if_ether.h>
 275 +
 276 +static u8 eth_mac[6];
 277 +static int eth_mac_set;
 278 +
 279 +const u8* ltq_get_eth_mac(void)
 280 +{
 281 +       return eth_mac;
 282 +}
 283 +
 284 +static int __init setup_ethaddr(char *str)
 285 +{
 286 +       eth_mac_set = mac_pton(str, eth_mac);
 287 +       return !eth_mac_set;
 288 +}
 289 +__setup("ethaddr=", setup_ethaddr);
 290 +
 291 +int __init of_eth_mac_probe(struct platform_device *pdev)
 292 +{
 293 +       struct device_node *np = pdev->dev.of_node;
 294 +       struct resource *mac_res;
 295 +       void __iomem *mac;
 296 +       u32 mac_inc = 0;
 297 +
 298 +       if (eth_mac_set) {
 299 +               dev_err(&pdev->dev, "mac was already set by bootloader\n");
 300 +               return -EINVAL;
 301 +       }
 302 +       mac_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 303 +
 304 +       if (!mac_res) {
 305 +               dev_err(&pdev->dev, "failed to load mac\n");
 306 +               return -EINVAL;
 307 +       }
 308 +       if (resource_size(mac_res) != 6) {
 309 +               dev_err(&pdev->dev, "mac has an invalid size\n");
 310 +               return -EINVAL;
 311 +       }
 312 +       mac = ioremap(mac_res->start, resource_size(mac_res));
 313 +       memcpy_fromio(eth_mac, mac, 6);
 314 +
 315 +       if (!of_property_read_u32(np, "mac-increment", &mac_inc))
 316 +               eth_mac[5] += mac_inc;
 317 +
 318 +       return 0;
 319 +}
 320 +
 321 +static struct of_device_id eth_mac_ids[] = {
 322 +       { .compatible = "lantiq,eth-mac" },
 323 +       { /* sentinel */ }
 324 +};
 325 +
 326 +static struct platform_driver eth_mac_driver = {
 327 +       .driver         = {
 328 +               .name           = "lantiq,eth-mac",
 329 +               .owner  = THIS_MODULE,
 330 +               .of_match_table = of_match_ptr(eth_mac_ids),
 331 +       },
 332 +};
 333 +
 334 +static int __init of_eth_mac_init(void)
 335 +{
 336 +       return platform_driver_probe(&eth_mac_driver, of_eth_mac_probe);
 337 +}
 338 +device_initcall(of_eth_mac_init);
 339 --- /dev/null
 340 +++ b/arch/mips/lantiq/xway/pci-ath-fixup.c
 341 @@ -0,0 +1,109 @@
 342 +/*
 343 + *  Atheros AP94 reference board PCI initialization
 344 + *
 345 + *  Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org>
 346 + *
 347 + *  This program is free software; you can redistribute it and/or modify it
 348 + *  under the terms of the GNU General Public License version 2 as published
 349 + *  by the Free Software Foundation.
 350 + */
 351 +
 352 +#include <linux/pci.h>
 353 +#include <linux/init.h>
 354 +#include <linux/delay.h>
 355 +#include <lantiq_soc.h>
 356 +
 357 +#define LTQ_PCI_MEM_BASE               0x18000000
 358 +
 359 +struct ath_fixup {
 360 +       u16             *cal_data;
 361 +       unsigned        slot;
 362 +};
 363 +
 364 +static int ath_num_fixups;
 365 +static struct ath_fixup ath_fixups[2];
 366 +
 367 +static void ath_pci_fixup(struct pci_dev *dev)
 368 +{
 369 +       void __iomem *mem;
 370 +       u16 *cal_data = NULL;
 371 +       u16 cmd;
 372 +       u32 bar0;
 373 +       u32 val;
 374 +       unsigned i;
 375 +
 376 +       for (i = 0; i < ath_num_fixups; i++) {
 377 +               if (ath_fixups[i].cal_data == NULL)
 378 +                       continue;
 379 +
 380 +               if (ath_fixups[i].slot != PCI_SLOT(dev->devfn))
 381 +                       continue;
 382 +
 383 +               cal_data = ath_fixups[i].cal_data;
 384 +               break;
 385 +       }
 386 +
 387 +       if (cal_data == NULL)
 388 +               return;
 389 +
 390 +       if (*cal_data != 0xa55a) {
 391 +               pr_err("pci %s: invalid calibration data\n", pci_name(dev));
 392 +               return;
 393 +       }
 394 +
 395 +       pr_info("pci %s: fixup device configuration\n", pci_name(dev));
 396 +
 397 +       mem = ioremap(LTQ_PCI_MEM_BASE, 0x10000);
 398 +       if (!mem) {
 399 +               pr_err("pci %s: ioremap error\n", pci_name(dev));
 400 +               return;
 401 +       }
 402 +
 403 +       pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &bar0);
 404 +       pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, LTQ_PCI_MEM_BASE);
 405 +       pci_read_config_word(dev, PCI_COMMAND, &cmd);
 406 +       cmd |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
 407 +       pci_write_config_word(dev, PCI_COMMAND, cmd);
 408 +
 409 +       /* set pointer to first reg address */
 410 +       cal_data += 3;
 411 +       while (*cal_data != 0xffff) {
 412 +               u32 reg;
 413 +               reg = *cal_data++;
 414 +               val = *cal_data++;
 415 +               val |= (*cal_data++) << 16;
 416 +
 417 +               ltq_w32(swab32(val), mem + reg);
 418 +               udelay(100);
 419 +       }
 420 +
 421 +       pci_read_config_dword(dev, PCI_VENDOR_ID, &val);
 422 +       dev->vendor = val & 0xffff;
 423 +       dev->device = (val >> 16) & 0xffff;
 424 +
 425 +       pci_read_config_dword(dev, PCI_CLASS_REVISION, &val);
 426 +       dev->revision = val & 0xff;
 427 +       dev->class = val >> 8; /* upper 3 bytes */
 428 +
 429 +       pr_info("pci %s: fixup info: [%04x:%04x] revision %02x class %#08x\n",
 430 +               pci_name(dev), dev->vendor, dev->device, dev->revision, dev->class);
 431 +
 432 +       pci_read_config_word(dev, PCI_COMMAND, &cmd);
 433 +       cmd &= ~(PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY);
 434 +       pci_write_config_word(dev, PCI_COMMAND, cmd);
 435 +
 436 +       pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, bar0);
 437 +
 438 +       iounmap(mem);
 439 +}
 440 +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ATHEROS, PCI_ANY_ID, ath_pci_fixup);
 441 +
 442 +void __init ltq_pci_ath_fixup(unsigned slot, u16 *cal_data)
 443 +{
 444 +       if (ath_num_fixups >= ARRAY_SIZE(ath_fixups))
 445 +               return;
 446 +
 447 +       ath_fixups[ath_num_fixups].slot = slot;
 448 +       ath_fixups[ath_num_fixups].cal_data = cal_data;
 449 +       ath_num_fixups++;
 450 +}
 451 --- /dev/null
 452 +++ b/arch/mips/lantiq/xway/rt_eep.c
 453 @@ -0,0 +1,60 @@
 454 +/*
 455 + *  Copyright (C) 2011 John Crispin <blogic@openwrt.org>
 456 + *
 457 + *  This program is free software; you can redistribute it and/or modify it
 458 + *  under the terms of the GNU General Public License version 2 as published
 459 + *  by the Free Software Foundation.
 460 + */
 461 +
 462 +#include <linux/init.h>
 463 +#include <linux/module.h>
 464 +#include <linux/pci.h>
 465 +#include <linux/platform_device.h>
 466 +#include <linux/rt2x00_platform.h>
 467 +
 468 +extern int (*ltq_pci_plat_dev_init)(struct pci_dev *dev);
 469 +static struct rt2x00_platform_data rt2x00_pdata;
 470 +
 471 +static int rt2x00_pci_plat_dev_init(struct pci_dev *dev)
 472 +{
 473 +       dev->dev.platform_data = &rt2x00_pdata;
 474 +       return 0;
 475 +}
 476 +
 477 +int __init of_ralink_eeprom_probe(struct platform_device *pdev)
 478 +{
 479 +       struct device_node *np = pdev->dev.of_node;
 480 +       const char *eeprom;
 481 +
 482 +       if (of_property_read_string(np, "ralink,eeprom", &eeprom)) {
 483 +               dev_err(&pdev->dev, "failed to load eeprom filename\n");
 484 +               return 0;
 485 +       }
 486 +
 487 +       rt2x00_pdata.eeprom_file_name = kstrdup(eeprom, GFP_KERNEL);
 488 +//     rt2x00_pdata.mac_address = mac;
 489 +       ltq_pci_plat_dev_init = rt2x00_pci_plat_dev_init;
 490 +
 491 +       dev_info(&pdev->dev, "using %s as eeprom\n", eeprom);
 492 +
 493 +       return 0;
 494 +}
 495 +
 496 +static struct of_device_id ralink_eeprom_ids[] = {
 497 +       { .compatible = "ralink,eeprom" },
 498 +       { }
 499 +};
 500 +
 501 +static struct platform_driver ralink_eeprom_driver = {
 502 +       .driver         = {
 503 +               .name           = "ralink,eeprom",
 504 +               .owner  = THIS_MODULE,
 505 +               .of_match_table = of_match_ptr(ralink_eeprom_ids),
 506 +       },
 507 +};
 508 +
 509 +static int __init of_ralink_eeprom_init(void)
 510 +{
 511 +       return platform_driver_probe(&ralink_eeprom_driver, of_ralink_eeprom_probe);
 512 +}
 513 +device_initcall(of_ralink_eeprom_init);
 514 --- a/drivers/net/ethernet/lantiq_etop.c
 515 +++ b/drivers/net/ethernet/lantiq_etop.c
 516 @@ -826,7 +826,8 @@ ltq_etop_init(struct net_device *dev)
 517
 518         ltq_etop_change_mtu(dev, 1500);
 519
 520 -       memcpy(&mac.sa_data, priv->mac, ETH_ALEN);
 521 +       if (priv->mac)
 522 +               memcpy(&mac.sa_data, priv->mac, ETH_ALEN);
 523         if (!is_valid_ether_addr(mac.sa_data)) {
 524                 pr_warn("etop: invalid MAC, using random\n");
 525                 random_ether_addr(mac.sa_data);
 526 @@ -885,8 +886,7 @@ static const struct net_device_ops ltq_e
 527         .ndo_tx_timeout = ltq_etop_tx_timeout,
 528  };
 529
 530 -static int __devinit
 531 -ltq_etop_probe(struct platform_device *pdev)
 532 +static int ltq_etop_probe(struct platform_device *pdev)
 533  {
 534         struct net_device *dev;
 535         struct ltq_etop_priv *priv;
 536 @@ -950,7 +950,9 @@ ltq_etop_probe(struct platform_device *p
 537         priv->tx_irq = irqres[0].start;
 538         priv->rx_irq = irqres[1].start;
 539         priv->mii_mode = of_get_phy_mode(pdev->dev.of_node);
 540 -       priv->mac = of_get_mac_address(pdev->dev.of_node);
 541 +       priv->mac = ltq_get_eth_mac();
 542 +       if (!priv->mac)
 543 +               priv->mac = of_get_mac_address(pdev->dev.of_node);
 544
 545         priv->clk_ppe = clk_get(&pdev->dev, NULL);
 546         if (IS_ERR(priv->clk_ppe))