target/linux/lantiq/patches-3.10/0010-MIPS-lantiq-wifi-and-ethernet-eeprom-handling.patch

   1 From 591a9bdde1fa9aa6f1c6132ea04771bb1dcd6180 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 18/22] 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                    |  248 ++++++++++++++++++++
  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  arch/mips/pci/pci-lantiq.c                         |    2 +-
  15  8 files changed, 506 insertions(+), 1 deletion(-)
  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 @@ -2,4 +2,7 @@ obj-y := prom.o sysctrl.o clk.o reset.o
  45
  46  obj-y += vmmc.o
  47
  48 +obj-y += eth_mac.o
  49 +obj-$(CONFIG_PCI) += ath_eep.o rt_eep.o pci-ath-fixup.o
  50 +
  51  obj-$(CONFIG_XRX200_PHY_FW) += xrx200_phy_fw.o
  52 --- /dev/null
  53 +++ b/arch/mips/lantiq/xway/ath_eep.c
  54 @@ -0,0 +1,271 @@
  55 +/*
  56 + *  Copyright (C) 2011 Luca Olivetti <luca@ventoso.org>
  57 + *  Copyright (C) 2011 John Crispin <blogic@openwrt.org>
  58 + *  Copyright (C) 2011 Andrej Vlašić <andrej.vlasic0@gmail.com>
  59 + *  Copyright (C) 2013 Álvaro Fernández Rojas <noltari@gmail.com>
  60 + *  Copyright (C) 2013 Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us>
  61 + *
  62 + *  This program is free software; you can redistribute it and/or modify it
  63 + *  under the terms of the GNU General Public License version 2 as published
  64 + *  by the Free Software Foundation.
  65 + */
  66 +
  67 +#include <linux/init.h>
  68 +#include <linux/module.h>
  69 +#include <linux/platform_device.h>
  70 +#include <linux/etherdevice.h>
  71 +#include <linux/ath5k_platform.h>
  72 +#include <linux/ath9k_platform.h>
  73 +#include <linux/pci.h>
  74 +#include <linux/err.h>
  75 +#include <linux/mtd/mtd.h>
  76 +#include <pci-ath-fixup.h>
  77 +#include <lantiq_soc.h>
  78 +
  79 +extern int (*ltq_pci_plat_dev_init)(struct pci_dev *dev);
  80 +struct ath5k_platform_data ath5k_pdata;
  81 +struct ath9k_platform_data ath9k_pdata = {
  82 +       .led_pin = -1,
  83 +};
  84 +static u8 athxk_eeprom_mac[6];
  85 +
  86 +static int ath9k_pci_plat_dev_init(struct pci_dev *dev)
  87 +{
  88 +       dev->dev.platform_data = &ath9k_pdata;
  89 +       return 0;
  90 +}
  91 +
  92 +static int ath9k_eep_load;
  93 +int __init of_ath9k_eeprom_probe(struct platform_device *pdev)
  94 +{
  95 +       struct device_node *np = pdev->dev.of_node, *mtd_np;
  96 +       struct resource *eep_res, *mac_res = NULL;
  97 +       void __iomem *eep, *mac;
  98 +       int mac_offset;
  99 +       u32 mac_inc = 0, pci_slot = 0;
 100 +       int i;
 101 +       struct mtd_info *the_mtd;
 102 +       size_t flash_readlen;
 103 +       const __be32 *list;
 104 +       const char *part;
 105 +       phandle phandle;
 106 +
 107 +       if ((list = of_get_property(np, "ath,eep-flash", &i)) && i == 2 *
 108 +                       sizeof(*list) && (phandle = be32_to_cpup(list++)) &&
 109 +                       (mtd_np = of_find_node_by_phandle(phandle)) && ((part =
 110 +                       of_get_property(mtd_np, "label", NULL)) || (part =
 111 +                       mtd_np->name)) && (the_mtd = get_mtd_device_nm(part))
 112 +                       != ERR_PTR(-ENODEV)) {
 113 +               i = mtd_read(the_mtd, be32_to_cpup(list),
 114 +                               ATH9K_PLAT_EEP_MAX_WORDS << 1, &flash_readlen,
 115 +                               (void *) ath9k_pdata.eeprom_data);
 116 +               put_mtd_device(the_mtd);
 117 +               if ((sizeof(ath9k_pdata.eeprom_data) != flash_readlen) || i) {
 118 +                       dev_err(&pdev->dev, "failed to load eeprom from mtd\n");
 119 +                       return -ENODEV;
 120 +               }
 121 +       } else {
 122 +               eep_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 123 +               mac_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
 124 +
 125 +               if (!eep_res) {
 126 +                       dev_err(&pdev->dev, "failed to load eeprom address\n");
 127 +                       return -ENODEV;
 128 +               }
 129 +               if (resource_size(eep_res) != ATH9K_PLAT_EEP_MAX_WORDS << 1) {
 130 +                       dev_err(&pdev->dev, "eeprom has an invalid size\n");
 131 +                       return -EINVAL;
 132 +               }
 133 +
 134 +               eep = ioremap(eep_res->start, resource_size(eep_res));
 135 +               memcpy_fromio(ath9k_pdata.eeprom_data, eep,
 136 +                               ATH9K_PLAT_EEP_MAX_WORDS << 1);
 137 +       }
 138 +
 139 +       if (of_find_property(np, "ath,eep-swap", NULL))
 140 +               for (i = 0; i < ATH9K_PLAT_EEP_MAX_WORDS; i++)
 141 +                       ath9k_pdata.eeprom_data[i] = swab16(ath9k_pdata.eeprom_data[i]);
 142 +
 143 +       if (of_find_property(np, "ath,eep-endian", NULL)) {
 144 +               ath9k_pdata.endian_check = true;
 145 +
 146 +               dev_info(&pdev->dev, "endian check enabled.\n");
 147 +       }
 148 +
 149 +       if (!of_property_read_u32(np, "ath,mac-offset", &mac_offset)) {
 150 +               memcpy_fromio(athxk_eeprom_mac, (void*) ath9k_pdata.eeprom_data + mac_offset, 6);
 151 +       } else if (mac_res) {
 152 +               if (resource_size(mac_res) != 6) {
 153 +                       dev_err(&pdev->dev, "mac has an invalid size\n");
 154 +                       return -EINVAL;
 155 +               }
 156 +               mac = ioremap(mac_res->start, resource_size(mac_res));
 157 +               memcpy_fromio(athxk_eeprom_mac, mac, 6);
 158 +       } else if (ltq_get_eth_mac())
 159 +               memcpy(athxk_eeprom_mac, ltq_get_eth_mac(), 6);
 160 +       else {
 161 +               dev_warn(&pdev->dev, "using random mac\n");
 162 +               random_ether_addr(athxk_eeprom_mac);
 163 +       }
 164 +
 165 +       if (!of_property_read_u32(np, "ath,mac-increment", &mac_inc))
 166 +               athxk_eeprom_mac[5] += mac_inc;
 167 +
 168 +       ath9k_pdata.macaddr = athxk_eeprom_mac;
 169 +       ltq_pci_plat_dev_init = ath9k_pci_plat_dev_init;
 170 +
 171 +       if (!of_property_read_u32(np, "ath,pci-slot", &pci_slot)) {
 172 +               ltq_pci_ath_fixup(pci_slot, ath9k_pdata.eeprom_data);
 173 +
 174 +               dev_info(&pdev->dev, "pci slot: %u\n", pci_slot);
 175 +                if (ath9k_eep_load) {
 176 +                        struct pci_dev *d = NULL;
 177 +                        while ((d = pci_get_device(PCI_VENDOR_ID_ATHEROS,
 178 +                                        PCI_ANY_ID, d)) != NULL)
 179 +                                pci_fixup_device(pci_fixup_early, d);
 180 +                }
 181 +
 182 +       }
 183 +
 184 +       dev_info(&pdev->dev, "loaded ath9k eeprom\n");
 185 +
 186 +       return 0;
 187 +}
 188 +
 189 +static struct of_device_id ath9k_eeprom_ids[] = {
 190 +       { .compatible = "ath9k,eeprom" },
 191 +       { }
 192 +};
 193 +
 194 +static struct platform_driver ath9k_eeprom_driver = {
 195 +       .driver         = {
 196 +               .name           = "ath9k,eeprom",
 197 +               .owner  = THIS_MODULE,
 198 +               .of_match_table = of_match_ptr(ath9k_eeprom_ids),
 199 +       },
 200 +};
 201 +
 202 +static int __init of_ath9k_eeprom_init(void)
 203 +{
 204 +        int ret = platform_driver_probe(&ath9k_eeprom_driver, of_ath9k_eeprom_probe);
 205 +
 206 +        if (ret)
 207 +                ath9k_eep_load = 1;
 208 +
 209 +        return ret;
 210 +}
 211 +
 212 +static int __init of_ath9k_eeprom_init_late(void)
 213 +{
 214 +        if (!ath9k_eep_load)
 215 +                return 0;
 216 +        return platform_driver_probe(&ath9k_eeprom_driver, of_ath9k_eeprom_probe);
 217 +}
 218 +late_initcall(of_ath9k_eeprom_init_late);
 219 +subsys_initcall(of_ath9k_eeprom_init);
 220 +
 221 +
 222 +static int ath5k_pci_plat_dev_init(struct pci_dev *dev)
 223 +{
 224 +       dev->dev.platform_data = &ath5k_pdata;
 225 +       return 0;
 226 +}
 227 +
 228 +int __init of_ath5k_eeprom_probe(struct platform_device *pdev)
 229 +{
 230 +       struct device_node *np = pdev->dev.of_node, *mtd_np;
 231 +       struct resource *eep_res, *mac_res = NULL;
 232 +       void __iomem *eep, *mac;
 233 +       int mac_offset;
 234 +       u32 mac_inc = 0;
 235 +       int i;
 236 +       struct mtd_info *the_mtd;
 237 +       size_t flash_readlen;
 238 +       const __be32 *list;
 239 +       const char *part;
 240 +       phandle phandle;
 241 +
 242 +       if ((list = of_get_property(np, "ath,eep-flash", &i)) && i == 2 *
 243 +                       sizeof(*list) && (phandle = be32_to_cpup(list++)) &&
 244 +                       (mtd_np = of_find_node_by_phandle(phandle)) && ((part =
 245 +                       of_get_property(mtd_np, "label", NULL)) || (part =
 246 +                       mtd_np->name)) && (the_mtd = get_mtd_device_nm(part))
 247 +                       != ERR_PTR(-ENODEV)) {
 248 +               i = mtd_read(the_mtd, be32_to_cpup(list),
 249 +                               ATH5K_PLAT_EEP_MAX_WORDS << 1, &flash_readlen,
 250 +                               (void *) ath5k_pdata.eeprom_data);
 251 +               put_mtd_device(the_mtd);
 252 +               if ((sizeof(ATH5K_PLAT_EEP_MAX_WORDS << 1) != flash_readlen)
 253 +                               || i) {
 254 +                       dev_err(&pdev->dev, "failed to load eeprom from mtd\n");
 255 +                       return -ENODEV;
 256 +               }
 257 +       } else {
 258 +               eep_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 259 +               mac_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
 260 +
 261 +               if (!eep_res) {
 262 +                       dev_err(&pdev->dev, "failed to load eeprom address\n");
 263 +                       return -ENODEV;
 264 +               }
 265 +               if (resource_size(eep_res) != ATH5K_PLAT_EEP_MAX_WORDS << 1) {
 266 +                       dev_err(&pdev->dev, "eeprom has an invalid size\n");
 267 +                       return -EINVAL;
 268 +               }
 269 +
 270 +               eep = ioremap(eep_res->start, resource_size(eep_res));
 271 +               ath5k_pdata.eeprom_data = kmalloc(ATH5K_PLAT_EEP_MAX_WORDS<<1,
 272 +                               GFP_KERNEL);
 273 +               memcpy_fromio(ath5k_pdata.eeprom_data, eep,
 274 +                               ATH5K_PLAT_EEP_MAX_WORDS << 1);
 275 +       }
 276 +
 277 +       if (of_find_property(np, "ath,eep-swap", NULL))
 278 +               for (i = 0; i < ATH5K_PLAT_EEP_MAX_WORDS; i++)
 279 +                       ath5k_pdata.eeprom_data[i] = swab16(ath5k_pdata.eeprom_data[i]);
 280 +
 281 +       if (!of_property_read_u32(np, "ath,mac-offset", &mac_offset)) {
 282 +               memcpy_fromio(athxk_eeprom_mac, (void*) ath5k_pdata.eeprom_data + mac_offset, 6);
 283 +       } else if (mac_res) {
 284 +               if (resource_size(mac_res) != 6) {
 285 +                       dev_err(&pdev->dev, "mac has an invalid size\n");
 286 +                       return -EINVAL;
 287 +               }
 288 +               mac = ioremap(mac_res->start, resource_size(mac_res));
 289 +               memcpy_fromio(athxk_eeprom_mac, mac, 6);
 290 +       } else if (ltq_get_eth_mac())
 291 +               memcpy(athxk_eeprom_mac, ltq_get_eth_mac(), 6);
 292 +       else {
 293 +               dev_warn(&pdev->dev, "using random mac\n");
 294 +               random_ether_addr(athxk_eeprom_mac);
 295 +       }
 296 +
 297 +       if (!of_property_read_u32(np, "ath,mac-increment", &mac_inc))
 298 +               athxk_eeprom_mac[5] += mac_inc;
 299 +
 300 +       ath5k_pdata.macaddr = athxk_eeprom_mac;
 301 +       ltq_pci_plat_dev_init = ath5k_pci_plat_dev_init;
 302 +
 303 +       dev_info(&pdev->dev, "loaded ath5k eeprom\n");
 304 +
 305 +       return 0;
 306 +}
 307 +
 308 +static struct of_device_id ath5k_eeprom_ids[] = {
 309 +       { .compatible = "ath5k,eeprom" },
 310 +       { }
 311 +};
 312 +
 313 +static struct platform_driver ath5k_eeprom_driver = {
 314 +       .driver         = {
 315 +               .name           = "ath5k,eeprom",
 316 +               .owner  = THIS_MODULE,
 317 +               .of_match_table = of_match_ptr(ath5k_eeprom_ids),
 318 +       },
 319 +};
 320 +
 321 +static int __init of_ath5k_eeprom_init(void)
 322 +{
 323 +       return platform_driver_probe(&ath5k_eeprom_driver, of_ath5k_eeprom_probe);
 324 +}
 325 +device_initcall(of_ath5k_eeprom_init);
 326 --- /dev/null
 327 +++ b/arch/mips/lantiq/xway/eth_mac.c
 328 @@ -0,0 +1,76 @@
 329 +/*
 330 + *  Copyright (C) 2012 John Crispin <blogic@openwrt.org>
 331 + *
 332 + *  This program is free software; you can redistribute it and/or modify it
 333 + *  under the terms of the GNU General Public License version 2 as published
 334 + *  by the Free Software Foundation.
 335 + */
 336 +
 337 +#include <linux/init.h>
 338 +#include <linux/module.h>
 339 +#include <linux/of_platform.h>
 340 +#include <linux/if_ether.h>
 341 +
 342 +static u8 eth_mac[6];
 343 +static int eth_mac_set;
 344 +
 345 +const u8* ltq_get_eth_mac(void)
 346 +{
 347 +       return eth_mac;
 348 +}
 349 +
 350 +static int __init setup_ethaddr(char *str)
 351 +{
 352 +       eth_mac_set = mac_pton(str, eth_mac);
 353 +       return !eth_mac_set;
 354 +}
 355 +__setup("ethaddr=", setup_ethaddr);
 356 +
 357 +int __init of_eth_mac_probe(struct platform_device *pdev)
 358 +{
 359 +       struct device_node *np = pdev->dev.of_node;
 360 +       struct resource *mac_res;
 361 +       void __iomem *mac;
 362 +       u32 mac_inc = 0;
 363 +
 364 +       if (eth_mac_set) {
 365 +               dev_err(&pdev->dev, "mac was already set by bootloader\n");
 366 +               return -EINVAL;
 367 +       }
 368 +       mac_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 369 +
 370 +       if (!mac_res) {
 371 +               dev_err(&pdev->dev, "failed to load mac\n");
 372 +               return -EINVAL;
 373 +       }
 374 +       if (resource_size(mac_res) != 6) {
 375 +               dev_err(&pdev->dev, "mac has an invalid size\n");
 376 +               return -EINVAL;
 377 +       }
 378 +       mac = ioremap(mac_res->start, resource_size(mac_res));
 379 +       memcpy_fromio(eth_mac, mac, 6);
 380 +
 381 +       if (!of_property_read_u32(np, "mac-increment", &mac_inc))
 382 +               eth_mac[5] += mac_inc;
 383 +
 384 +       return 0;
 385 +}
 386 +
 387 +static struct of_device_id eth_mac_ids[] = {
 388 +       { .compatible = "lantiq,eth-mac" },
 389 +       { /* sentinel */ }
 390 +};
 391 +
 392 +static struct platform_driver eth_mac_driver = {
 393 +       .driver         = {
 394 +               .name           = "lantiq,eth-mac",
 395 +               .owner  = THIS_MODULE,
 396 +               .of_match_table = of_match_ptr(eth_mac_ids),
 397 +       },
 398 +};
 399 +
 400 +static int __init of_eth_mac_init(void)
 401 +{
 402 +       return platform_driver_probe(&eth_mac_driver, of_eth_mac_probe);
 403 +}
 404 +device_initcall(of_eth_mac_init);
 405 --- /dev/null
 406 +++ b/arch/mips/lantiq/xway/pci-ath-fixup.c
 407 @@ -0,0 +1,109 @@
 408 +/*
 409 + *  Atheros AP94 reference board PCI initialization
 410 + *
 411 + *  Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org>
 412 + *
 413 + *  This program is free software; you can redistribute it and/or modify it
 414 + *  under the terms of the GNU General Public License version 2 as published
 415 + *  by the Free Software Foundation.
 416 + */
 417 +
 418 +#include <linux/pci.h>
 419 +#include <linux/init.h>
 420 +#include <linux/delay.h>
 421 +#include <lantiq_soc.h>
 422 +
 423 +#define LTQ_PCI_MEM_BASE               0x18000000
 424 +
 425 +struct ath_fixup {
 426 +       u16             *cal_data;
 427 +       unsigned        slot;
 428 +};
 429 +
 430 +static int ath_num_fixups;
 431 +static struct ath_fixup ath_fixups[2];
 432 +
 433 +static void ath_pci_fixup(struct pci_dev *dev)
 434 +{
 435 +       void __iomem *mem;
 436 +       u16 *cal_data = NULL;
 437 +       u16 cmd;
 438 +       u32 bar0;
 439 +       u32 val;
 440 +       unsigned i;
 441 +
 442 +       for (i = 0; i < ath_num_fixups; i++) {
 443 +               if (ath_fixups[i].cal_data == NULL)
 444 +                       continue;
 445 +
 446 +               if (ath_fixups[i].slot != PCI_SLOT(dev->devfn))
 447 +                       continue;
 448 +
 449 +               cal_data = ath_fixups[i].cal_data;
 450 +               break;
 451 +       }
 452 +
 453 +       if (cal_data == NULL)
 454 +               return;
 455 +
 456 +       if (*cal_data != 0xa55a) {
 457 +               pr_err("pci %s: invalid calibration data\n", pci_name(dev));
 458 +               return;
 459 +       }
 460 +
 461 +       pr_info("pci %s: fixup device configuration\n", pci_name(dev));
 462 +
 463 +       mem = ioremap(LTQ_PCI_MEM_BASE, 0x10000);
 464 +       if (!mem) {
 465 +               pr_err("pci %s: ioremap error\n", pci_name(dev));
 466 +               return;
 467 +       }
 468 +
 469 +       pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &bar0);
 470 +       pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, LTQ_PCI_MEM_BASE);
 471 +       pci_read_config_word(dev, PCI_COMMAND, &cmd);
 472 +       cmd |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
 473 +       pci_write_config_word(dev, PCI_COMMAND, cmd);
 474 +
 475 +       /* set pointer to first reg address */
 476 +       cal_data += 3;
 477 +       while (*cal_data != 0xffff) {
 478 +               u32 reg;
 479 +               reg = *cal_data++;
 480 +               val = *cal_data++;
 481 +               val |= (*cal_data++) << 16;
 482 +
 483 +               ltq_w32(swab32(val), mem + reg);
 484 +               udelay(100);
 485 +       }
 486 +
 487 +       pci_read_config_dword(dev, PCI_VENDOR_ID, &val);
 488 +       dev->vendor = val & 0xffff;
 489 +       dev->device = (val >> 16) & 0xffff;
 490 +
 491 +       pci_read_config_dword(dev, PCI_CLASS_REVISION, &val);
 492 +       dev->revision = val & 0xff;
 493 +       dev->class = val >> 8; /* upper 3 bytes */
 494 +
 495 +       pr_info("pci %s: fixup info: [%04x:%04x] revision %02x class %#08x\n",
 496 +               pci_name(dev), dev->vendor, dev->device, dev->revision, dev->class);
 497 +
 498 +       pci_read_config_word(dev, PCI_COMMAND, &cmd);
 499 +       cmd &= ~(PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY);
 500 +       pci_write_config_word(dev, PCI_COMMAND, cmd);
 501 +
 502 +       pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, bar0);
 503 +
 504 +       iounmap(mem);
 505 +}
 506 +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ATHEROS, PCI_ANY_ID, ath_pci_fixup);
 507 +
 508 +void __init ltq_pci_ath_fixup(unsigned slot, u16 *cal_data)
 509 +{
 510 +       if (ath_num_fixups >= ARRAY_SIZE(ath_fixups))
 511 +               return;
 512 +
 513 +       ath_fixups[ath_num_fixups].slot = slot;
 514 +       ath_fixups[ath_num_fixups].cal_data = cal_data;
 515 +       ath_num_fixups++;
 516 +}
 517 --- /dev/null
 518 +++ b/arch/mips/lantiq/xway/rt_eep.c
 519 @@ -0,0 +1,60 @@
 520 +/*
 521 + *  Copyright (C) 2011 John Crispin <blogic@openwrt.org>
 522 + *
 523 + *  This program is free software; you can redistribute it and/or modify it
 524 + *  under the terms of the GNU General Public License version 2 as published
 525 + *  by the Free Software Foundation.
 526 + */
 527 +
 528 +#include <linux/init.h>
 529 +#include <linux/module.h>
 530 +#include <linux/pci.h>
 531 +#include <linux/platform_device.h>
 532 +#include <linux/rt2x00_platform.h>
 533 +
 534 +extern int (*ltq_pci_plat_dev_init)(struct pci_dev *dev);
 535 +static struct rt2x00_platform_data rt2x00_pdata;
 536 +
 537 +static int rt2x00_pci_plat_dev_init(struct pci_dev *dev)
 538 +{
 539 +       dev->dev.platform_data = &rt2x00_pdata;
 540 +       return 0;
 541 +}
 542 +
 543 +int __init of_ralink_eeprom_probe(struct platform_device *pdev)
 544 +{
 545 +       struct device_node *np = pdev->dev.of_node;
 546 +       const char *eeprom;
 547 +
 548 +       if (of_property_read_string(np, "ralink,eeprom", &eeprom)) {
 549 +               dev_err(&pdev->dev, "failed to load eeprom filename\n");
 550 +               return 0;
 551 +       }
 552 +
 553 +       rt2x00_pdata.eeprom_file_name = kstrdup(eeprom, GFP_KERNEL);
 554 +//     rt2x00_pdata.mac_address = mac;
 555 +       ltq_pci_plat_dev_init = rt2x00_pci_plat_dev_init;
 556 +
 557 +       dev_info(&pdev->dev, "using %s as eeprom\n", eeprom);
 558 +
 559 +       return 0;
 560 +}
 561 +
 562 +static struct of_device_id ralink_eeprom_ids[] = {
 563 +       { .compatible = "ralink,eeprom" },
 564 +       { }
 565 +};
 566 +
 567 +static struct platform_driver ralink_eeprom_driver = {
 568 +       .driver         = {
 569 +               .name           = "ralink,eeprom",
 570 +               .owner  = THIS_MODULE,
 571 +               .of_match_table = of_match_ptr(ralink_eeprom_ids),
 572 +       },
 573 +};
 574 +
 575 +static int __init of_ralink_eeprom_init(void)
 576 +{
 577 +       return platform_driver_probe(&ralink_eeprom_driver, of_ralink_eeprom_probe);
 578 +}
 579 +device_initcall(of_ralink_eeprom_init);