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

   1 From 8c19ced548538d964dcfb83bdf9ea9e8fbb7bdb1 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 10/34] MIPS: lantiq: wifi and ethernet eeprom handling
   5
   6 Signed-off-by: John Crispin <blogic@openwrt.org>
   7 ---
   8  arch/mips/include/asm/mach-lantiq/pci-ath-fixup.h  |    6 +
   9  .../mips/include/asm/mach-lantiq/xway/lantiq_soc.h |    3 +
  10  arch/mips/lantiq/xway/Makefile                     |    2 +
  11  arch/mips/lantiq/xway/ath_eep.c                    |  237 ++++++++++++++++++++
  12  arch/mips/lantiq/xway/pci-ath-fixup.c              |  109 +++++++++
  13  arch/mips/lantiq/xway/rt_eep.c                     |   60 +++++
  14  6 files changed, 417 insertions(+)
  15  create mode 100644 arch/mips/include/asm/mach-lantiq/pci-ath-fixup.h
  16  create mode 100644 arch/mips/lantiq/xway/ath_eep.c
  17  create mode 100644 arch/mips/lantiq/xway/pci-ath-fixup.c
  18  create mode 100644 arch/mips/lantiq/xway/rt_eep.c
  19
  20 Index: linux-3.10.12/arch/mips/include/asm/mach-lantiq/pci-ath-fixup.h
  21 ===================================================================
  22 --- /dev/null   1970-01-01 00:00:00.000000000 +0000
  23 +++ linux-3.10.12/arch/mips/include/asm/mach-lantiq/pci-ath-fixup.h     2013-09-17 22:32:50.385021711 +0200
  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 Index: linux-3.10.12/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
  32 ===================================================================
  33 --- linux-3.10.12.orig/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h      2013-09-14 15:55:12.000000000 +0200
  34 +++ linux-3.10.12/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h   2013-09-17 22:32:50.389021711 +0200
  35 @@ -90,5 +90,8 @@
  36  extern void ltq_pmu_enable(unsigned int module);
  37  extern void ltq_pmu_disable(unsigned int module);
  38
  39 +/* allow the ethernet driver to load a flash mapped mac addr */
  40 +const u8* ltq_get_eth_mac(void);
  41 +
  42  #endif /* CONFIG_SOC_TYPE_XWAY */
  43  #endif /* _LTQ_XWAY_H__ */
  44 Index: linux-3.10.12/arch/mips/lantiq/xway/Makefile
  45 ===================================================================
  46 --- linux-3.10.12.orig/arch/mips/lantiq/xway/Makefile   2013-09-17 22:32:50.305021707 +0200
  47 +++ linux-3.10.12/arch/mips/lantiq/xway/Makefile        2013-09-18 02:41:31.613659574 +0200
  48 @@ -2,4 +2,6 @@
  49
  50  obj-y += vmmc.o
  51
  52 +obj-$(CONFIG_PCI) += ath_eep.o rt_eep.o pci-ath-fixup.o
  53 +
  54  obj-$(CONFIG_XRX200_PHY_FW) += xrx200_phy_fw.o
  55 Index: linux-3.10.12/arch/mips/lantiq/xway/ath_eep.c
  56 ===================================================================
  57 --- /dev/null   1970-01-01 00:00:00.000000000 +0000
  58 +++ linux-3.10.12/arch/mips/lantiq/xway/ath_eep.c       2013-09-18 02:41:28.525659442 +0200
  59 @@ -0,0 +1,250 @@
  60 +/*
  61 + *  Copyright (C) 2011 Luca Olivetti <luca@ventoso.org>
  62 + *  Copyright (C) 2011 John Crispin <blogic@openwrt.org>
  63 + *  Copyright (C) 2011 Andrej Vlašić <andrej.vlasic0@gmail.com>
  64 + *  Copyright (C) 2013 Álvaro Fernández Rojas <noltari@gmail.com>
  65 + *  Copyright (C) 2013 Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us>
  66 + *
  67 + *  This program is free software; you can redistribute it and/or modify it
  68 + *  under the terms of the GNU General Public License version 2 as published
  69 + *  by the Free Software Foundation.
  70 + */
  71 +
  72 +#include <linux/init.h>
  73 +#include <linux/module.h>
  74 +#include <linux/platform_device.h>
  75 +#include <linux/etherdevice.h>
  76 +#include <linux/ath5k_platform.h>
  77 +#include <linux/ath9k_platform.h>
  78 +#include <linux/pci.h>
  79 +#include <linux/err.h>
  80 +#include <linux/mtd/mtd.h>
  81 +#include <pci-ath-fixup.h>
  82 +#include <lantiq_soc.h>
  83 +#include <linux/of_net.h>
  84 +
  85 +extern int (*ltq_pci_plat_dev_init)(struct pci_dev *dev);
  86 +struct ath5k_platform_data ath5k_pdata;
  87 +struct ath9k_platform_data ath9k_pdata = {
  88 +       .led_pin = -1,
  89 +};
  90 +static u8 athxk_eeprom_mac[6];
  91 +
  92 +static int ath9k_pci_plat_dev_init(struct pci_dev *dev)
  93 +{
  94 +       dev->dev.platform_data = &ath9k_pdata;
  95 +       return 0;
  96 +}
  97 +
  98 +int __init of_ath9k_eeprom_probe(struct platform_device *pdev)
  99 +{
 100 +       struct device_node *np = pdev->dev.of_node, *mtd_np;
 101 +       int mac_offset;
 102 +       u32 mac_inc = 0, pci_slot = 0;
 103 +       int i;
 104 +       struct mtd_info *the_mtd;
 105 +       size_t flash_readlen;
 106 +       const __be32 *list;
 107 +       const char *part;
 108 +       phandle phandle;
 109 +
 110 +       list = of_get_property(np, "ath,eep-flash", &i);
 111 +       if (!list || (i !=  (2 * sizeof(*list)))) {
 112 +               dev_err(&pdev->dev, "failed to find ath,eep-flash\n");
 113 +               return -ENODEV;
 114 +       }
 115 +
 116 +       phandle = be32_to_cpup(list++);
 117 +       if (!phandle) {
 118 +               dev_err(&pdev->dev, "failed to find phandle\n");
 119 +               return -ENODEV;
 120 +       }
 121 +
 122 +       mtd_np = of_find_node_by_phandle(phandle);
 123 +       if (!mtd_np) {
 124 +               dev_err(&pdev->dev, "failed to find mtd node\n");
 125 +               return -ENODEV;
 126 +       }
 127 +
 128 +       part = of_get_property(mtd_np, "label", NULL);
 129 +       if (!part)
 130 +               part = mtd_np->name;
 131 +
 132 +       the_mtd = get_mtd_device_nm(part);
 133 +       if (the_mtd == ERR_PTR(-ENODEV)) {
 134 +               dev_err(&pdev->dev, "failed to find mtd device\n");
 135 +               return -ENODEV;
 136 +       }
 137 +
 138 +       i = mtd_read(the_mtd, be32_to_cpup(list),
 139 +                       ATH9K_PLAT_EEP_MAX_WORDS << 1, &flash_readlen,
 140 +                       (void *) ath9k_pdata.eeprom_data);
 141 +       put_mtd_device(the_mtd);
 142 +       if ((sizeof(ath9k_pdata.eeprom_data) != flash_readlen) || i) {
 143 +               dev_err(&pdev->dev, "failed to load eeprom from mtd\n");
 144 +               return -ENODEV;
 145 +       }
 146 +
 147 +       if (of_find_property(np, "ath,eep-swap", NULL))
 148 +               for (i = 0; i < ATH9K_PLAT_EEP_MAX_WORDS; i++)
 149 +                       ath9k_pdata.eeprom_data[i] = swab16(ath9k_pdata.eeprom_data[i]);
 150 +
 151 +       if (of_find_property(np, "ath,eep-endian", NULL)) {
 152 +               ath9k_pdata.endian_check = true;
 153 +
 154 +               dev_info(&pdev->dev, "endian check enabled.\n");
 155 +       }
 156 +
 157 +       if (!of_property_read_u32(np, "ath,mac-offset", &mac_offset)) {
 158 +               memcpy_fromio(athxk_eeprom_mac, (void*) ath9k_pdata.eeprom_data + mac_offset, 6);
 159 +       } else {
 160 +               random_ether_addr(athxk_eeprom_mac);
 161 +               if (of_get_mac_address_mtd(np, athxk_eeprom_mac))
 162 +                       dev_warn(&pdev->dev, "using random mac\n");
 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 +               dev_info(&pdev->dev, "pci slot: %u\n", pci_slot);
 174 +       }
 175 +
 176 +       dev_info(&pdev->dev, "loaded ath9k eeprom\n");
 177 +
 178 +       return 0;
 179 +}
 180 +
 181 +static struct of_device_id ath9k_eeprom_ids[] = {
 182 +       { .compatible = "ath9k,eeprom" },
 183 +       { }
 184 +};
 185 +
 186 +static struct platform_driver ath9k_eeprom_driver = {
 187 +       .driver         = {
 188 +               .name           = "ath9k,eeprom",
 189 +               .owner  = THIS_MODULE,
 190 +               .of_match_table = of_match_ptr(ath9k_eeprom_ids),
 191 +       },
 192 +};
 193 +
 194 +static int ath9k_eep_loaded;
 195 +static int __init of_ath9k_eeprom_init(void)
 196 +{
 197 +       int ret = platform_driver_probe(&ath9k_eeprom_driver, of_ath9k_eeprom_probe);
 198 +
 199 +       if (!ret)
 200 +               ath9k_eep_loaded = 1;
 201 +
 202 +       return ret;
 203 +}
 204 +
 205 +static int __init of_ath9k_eeprom_init_late(void)
 206 +{
 207 +       if (ath9k_eep_loaded)
 208 +               return 0;
 209 +       return platform_driver_probe(&ath9k_eeprom_driver, of_ath9k_eeprom_probe);
 210 +}
 211 +late_initcall(of_ath9k_eeprom_init_late);
 212 +subsys_initcall(of_ath9k_eeprom_init);
 213 +
 214 +static int ath5k_pci_plat_dev_init(struct pci_dev *dev)
 215 +{
 216 +       dev->dev.platform_data = &ath5k_pdata;
 217 +       return 0;
 218 +}
 219 +
 220 +int __init of_ath5k_eeprom_probe(struct platform_device *pdev)
 221 +{
 222 +       struct device_node *np = pdev->dev.of_node, *mtd_np;
 223 +       int mac_offset;
 224 +       u32 mac_inc = 0;
 225 +       int i;
 226 +       struct mtd_info *the_mtd;
 227 +       size_t flash_readlen;
 228 +       const __be32 *list;
 229 +       const char *part;
 230 +       phandle phandle;
 231 +
 232 +       list = of_get_property(np, "ath,eep-flash", &i);
 233 +       if (!list || (i !=  (2 * sizeof(*list)))) {
 234 +               dev_err(&pdev->dev, "failed to find ath,eep-flash\n");
 235 +               return -ENODEV;
 236 +       }
 237 +
 238 +       phandle = be32_to_cpup(list++);
 239 +       if (!phandle) {
 240 +               dev_err(&pdev->dev, "failed to find phandle\n");
 241 +               return -ENODEV;
 242 +       }
 243 +
 244 +       mtd_np = of_find_node_by_phandle(phandle);
 245 +       if (!mtd_np) {
 246 +               dev_err(&pdev->dev, "failed to find mtd node\n");
 247 +               return -ENODEV;
 248 +       }
 249 +
 250 +       part = of_get_property(mtd_np, "label", NULL);
 251 +       if (!part)
 252 +               part = mtd_np->name;
 253 +
 254 +       the_mtd = get_mtd_device_nm(part);
 255 +       if (the_mtd == ERR_PTR(-ENODEV)) {
 256 +               dev_err(&pdev->dev, "failed to find mtd device\n");
 257 +               return -ENODEV;
 258 +       }
 259 +
 260 +       i = mtd_read(the_mtd, be32_to_cpup(list),
 261 +                       ATH5K_PLAT_EEP_MAX_WORDS << 1, &flash_readlen,
 262 +                       (void *) ath5k_pdata.eeprom_data);
 263 +       put_mtd_device(the_mtd);
 264 +       if ((sizeof(ath5k_pdata.eeprom_data) != flash_readlen) || i) {
 265 +               dev_err(&pdev->dev, "failed to load eeprom from mtd\n");
 266 +               return -ENODEV;
 267 +       }
 268 +
 269 +       if (of_find_property(np, "ath,eep-swap", NULL))
 270 +               for (i = 0; i < ATH5K_PLAT_EEP_MAX_WORDS; i++)
 271 +                       ath5k_pdata.eeprom_data[i] = swab16(ath9k_pdata.eeprom_data[i]);
 272 +
 273 +       if (!of_property_read_u32(np, "ath,mac-offset", &mac_offset)) {
 274 +               memcpy_fromio(athxk_eeprom_mac, (void*) ath5k_pdata.eeprom_data + mac_offset, 6);
 275 +       } else {
 276 +               random_ether_addr(athxk_eeprom_mac);
 277 +               if (of_get_mac_address_mtd(np, athxk_eeprom_mac))
 278 +                       dev_warn(&pdev->dev, "using random mac\n");
 279 +       }
 280 +
 281 +       if (!of_property_read_u32(np, "ath,mac-increment", &mac_inc))
 282 +               athxk_eeprom_mac[5] += mac_inc;
 283 +
 284 +       ath5k_pdata.macaddr = athxk_eeprom_mac;
 285 +       ltq_pci_plat_dev_init = ath5k_pci_plat_dev_init;
 286 +
 287 +       dev_info(&pdev->dev, "loaded ath5k eeprom\n");
 288 +
 289 +       return 0;
 290 +}
 291 +
 292 +static struct of_device_id ath5k_eeprom_ids[] = {
 293 +       { .compatible = "ath5k,eeprom" },
 294 +       { }
 295 +};
 296 +
 297 +static struct platform_driver ath5k_eeprom_driver = {
 298 +       .driver         = {
 299 +               .name           = "ath5k,eeprom",
 300 +               .owner  = THIS_MODULE,
 301 +               .of_match_table = of_match_ptr(ath5k_eeprom_ids),
 302 +       },
 303 +};
 304 +
 305 +static int __init of_ath5k_eeprom_init(void)
 306 +{
 307 +       return platform_driver_probe(&ath5k_eeprom_driver, of_ath5k_eeprom_probe);
 308 +}
 309 +device_initcall(of_ath5k_eeprom_init);
 310 Index: linux-3.10.12/arch/mips/lantiq/xway/pci-ath-fixup.c
 311 ===================================================================
 312 --- /dev/null   1970-01-01 00:00:00.000000000 +0000
 313 +++ linux-3.10.12/arch/mips/lantiq/xway/pci-ath-fixup.c 2013-09-17 22:32:50.389021711 +0200
 314 @@ -0,0 +1,109 @@
 315 +/*
 316 + *  Atheros AP94 reference board PCI initialization
 317 + *
 318 + *  Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org>
 319 + *
 320 + *  This program is free software; you can redistribute it and/or modify it
 321 + *  under the terms of the GNU General Public License version 2 as published
 322 + *  by the Free Software Foundation.
 323 + */
 324 +
 325 +#include <linux/pci.h>
 326 +#include <linux/init.h>
 327 +#include <linux/delay.h>
 328 +#include <lantiq_soc.h>
 329 +
 330 +#define LTQ_PCI_MEM_BASE               0x18000000
 331 +
 332 +struct ath_fixup {
 333 +       u16             *cal_data;
 334 +       unsigned        slot;
 335 +};
 336 +
 337 +static int ath_num_fixups;
 338 +static struct ath_fixup ath_fixups[2];
 339 +
 340 +static void ath_pci_fixup(struct pci_dev *dev)
 341 +{
 342 +       void __iomem *mem;
 343 +       u16 *cal_data = NULL;
 344 +       u16 cmd;
 345 +       u32 bar0;
 346 +       u32 val;
 347 +       unsigned i;
 348 +
 349 +       for (i = 0; i < ath_num_fixups; i++) {
 350 +               if (ath_fixups[i].cal_data == NULL)
 351 +                       continue;
 352 +
 353 +               if (ath_fixups[i].slot != PCI_SLOT(dev->devfn))
 354 +                       continue;
 355 +
 356 +               cal_data = ath_fixups[i].cal_data;
 357 +               break;
 358 +       }
 359 +
 360 +       if (cal_data == NULL)
 361 +               return;
 362 +
 363 +       if (*cal_data != 0xa55a) {
 364 +               pr_err("pci %s: invalid calibration data\n", pci_name(dev));
 365 +               return;
 366 +       }
 367 +
 368 +       pr_info("pci %s: fixup device configuration\n", pci_name(dev));
 369 +
 370 +       mem = ioremap(LTQ_PCI_MEM_BASE, 0x10000);
 371 +       if (!mem) {
 372 +               pr_err("pci %s: ioremap error\n", pci_name(dev));
 373 +               return;
 374 +       }
 375 +
 376 +       pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &bar0);
 377 +       pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, LTQ_PCI_MEM_BASE);
 378 +       pci_read_config_word(dev, PCI_COMMAND, &cmd);
 379 +       cmd |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
 380 +       pci_write_config_word(dev, PCI_COMMAND, cmd);
 381 +
 382 +       /* set pointer to first reg address */
 383 +       cal_data += 3;
 384 +       while (*cal_data != 0xffff) {
 385 +               u32 reg;
 386 +               reg = *cal_data++;
 387 +               val = *cal_data++;
 388 +               val |= (*cal_data++) << 16;
 389 +
 390 +               ltq_w32(swab32(val), mem + reg);
 391 +               udelay(100);
 392 +       }
 393 +
 394 +       pci_read_config_dword(dev, PCI_VENDOR_ID, &val);
 395 +       dev->vendor = val & 0xffff;
 396 +       dev->device = (val >> 16) & 0xffff;
 397 +
 398 +       pci_read_config_dword(dev, PCI_CLASS_REVISION, &val);
 399 +       dev->revision = val & 0xff;
 400 +       dev->class = val >> 8; /* upper 3 bytes */
 401 +
 402 +       pr_info("pci %s: fixup info: [%04x:%04x] revision %02x class %#08x\n",
 403 +               pci_name(dev), dev->vendor, dev->device, dev->revision, dev->class);
 404 +
 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 +       pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, bar0);
 410 +
 411 +       iounmap(mem);
 412 +}
 413 +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ATHEROS, PCI_ANY_ID, ath_pci_fixup);
 414 +
 415 +void __init ltq_pci_ath_fixup(unsigned slot, u16 *cal_data)
 416 +{
 417 +       if (ath_num_fixups >= ARRAY_SIZE(ath_fixups))
 418 +               return;
 419 +
 420 +       ath_fixups[ath_num_fixups].slot = slot;
 421 +       ath_fixups[ath_num_fixups].cal_data = cal_data;
 422 +       ath_num_fixups++;
 423 +}
 424 Index: linux-3.10.12/arch/mips/lantiq/xway/rt_eep.c
 425 ===================================================================
 426 --- /dev/null   1970-01-01 00:00:00.000000000 +0000
 427 +++ linux-3.10.12/arch/mips/lantiq/xway/rt_eep.c        2013-09-17 22:32:50.389021711 +0200
 428 @@ -0,0 +1,60 @@
 429 +/*
 430 + *  Copyright (C) 2011 John Crispin <blogic@openwrt.org>
 431 + *
 432 + *  This program is free software; you can redistribute it and/or modify it
 433 + *  under the terms of the GNU General Public License version 2 as published
 434 + *  by the Free Software Foundation.
 435 + */
 436 +
 437 +#include <linux/init.h>
 438 +#include <linux/module.h>
 439 +#include <linux/pci.h>
 440 +#include <linux/platform_device.h>
 441 +#include <linux/rt2x00_platform.h>
 442 +
 443 +extern int (*ltq_pci_plat_dev_init)(struct pci_dev *dev);
 444 +static struct rt2x00_platform_data rt2x00_pdata;
 445 +
 446 +static int rt2x00_pci_plat_dev_init(struct pci_dev *dev)
 447 +{
 448 +       dev->dev.platform_data = &rt2x00_pdata;
 449 +       return 0;
 450 +}
 451 +
 452 +int __init of_ralink_eeprom_probe(struct platform_device *pdev)
 453 +{
 454 +       struct device_node *np = pdev->dev.of_node;
 455 +       const char *eeprom;
 456 +
 457 +       if (of_property_read_string(np, "ralink,eeprom", &eeprom)) {
 458 +               dev_err(&pdev->dev, "failed to load eeprom filename\n");
 459 +               return 0;
 460 +       }
 461 +
 462 +       rt2x00_pdata.eeprom_file_name = kstrdup(eeprom, GFP_KERNEL);
 463 +//     rt2x00_pdata.mac_address = mac;
 464 +       ltq_pci_plat_dev_init = rt2x00_pci_plat_dev_init;
 465 +
 466 +       dev_info(&pdev->dev, "using %s as eeprom\n", eeprom);
 467 +
 468 +       return 0;
 469 +}
 470 +
 471 +static struct of_device_id ralink_eeprom_ids[] = {
 472 +       { .compatible = "ralink,eeprom" },
 473 +       { }
 474 +};
 475 +
 476 +static struct platform_driver ralink_eeprom_driver = {
 477 +       .driver         = {
 478 +               .name           = "ralink,eeprom",
 479 +               .owner  = THIS_MODULE,
 480 +               .of_match_table = of_match_ptr(ralink_eeprom_ids),
 481 +       },
 482 +};
 483 +
 484 +static int __init of_ralink_eeprom_init(void)
 485 +{
 486 +       return platform_driver_probe(&ralink_eeprom_driver, of_ralink_eeprom_probe);
 487 +}
 488 +device_initcall(of_ralink_eeprom_init);