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 diff --git a/arch/mips/include/asm/mach-lantiq/pci-ath-fixup.h b/arch/mips/include/asm/mach-lantiq/pci-ath-fixup.h
  21 new file mode 100644
  22 index 0000000..095d261
  23 --- /dev/null
  24 +++ b/arch/mips/include/asm/mach-lantiq/pci-ath-fixup.h
  25 @@ -0,0 +1,6 @@
  26 +#ifndef _PCI_ATH_FIXUP
  27 +#define _PCI_ATH_FIXUP
  28 +
  29 +void ltq_pci_ath_fixup(unsigned slot, u16 *cal_data) __init;
  30 +
  31 +#endif /* _PCI_ATH_FIXUP */
  32 diff --git a/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h b/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
  33 index 133336b..779715c 100644
  34 --- a/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
  35 +++ b/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
  36 @@ -90,5 +90,8 @@ int xrx200_gphy_boot(struct device *dev, unsigned int id, dma_addr_t dev_addr);
  37  extern void ltq_pmu_enable(unsigned int module);
  38  extern void ltq_pmu_disable(unsigned int module);
  39
  40 +/* allow the ethernet driver to load a flash mapped mac addr */
  41 +const u8* ltq_get_eth_mac(void);
  42 +
  43  #endif /* CONFIG_SOC_TYPE_XWAY */
  44  #endif /* _LTQ_XWAY_H__ */
  45 diff --git a/arch/mips/lantiq/xway/Makefile b/arch/mips/lantiq/xway/Makefile
  46 index da51fe0..0af7a54 100644
  47 --- a/arch/mips/lantiq/xway/Makefile
  48 +++ b/arch/mips/lantiq/xway/Makefile
  49 @@ -2,4 +2,6 @@ obj-y := prom.o sysctrl.o clk.o reset.o dma.o timer.o dcdc.o
  50
  51  obj-y += vmmc.o
  52
  53 +obj-$(CONFIG_PCI) += ath_eep.o rt_eep.o pci-ath-fixup.o
  54 +
  55  obj-$(CONFIG_XRX200_PHY_FW) += xrx200_phy_fw.o
  56 diff --git a/arch/mips/lantiq/xway/ath_eep.c b/arch/mips/lantiq/xway/ath_eep.c
  57 new file mode 100644
  58 index 0000000..1146f01
  59 --- /dev/null
  60 +++ b/arch/mips/lantiq/xway/ath_eep.c
  61 @@ -0,0 +1,237 @@
  62 +/*
  63 + *  Copyright (C) 2011 Luca Olivetti <luca@ventoso.org>
  64 + *  Copyright (C) 2011 John Crispin <blogic@openwrt.org>
  65 + *  Copyright (C) 2011 Andrej Vlašić <andrej.vlasic0@gmail.com>
  66 + *  Copyright (C) 2013 Álvaro Fernández Rojas <noltari@gmail.com>
  67 + *  Copyright (C) 2013 Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us>
  68 + *
  69 + *  This program is free software; you can redistribute it and/or modify it
  70 + *  under the terms of the GNU General Public License version 2 as published
  71 + *  by the Free Software Foundation.
  72 + */
  73 +
  74 +#include <linux/init.h>
  75 +#include <linux/module.h>
  76 +#include <linux/platform_device.h>
  77 +#include <linux/etherdevice.h>
  78 +#include <linux/ath5k_platform.h>
  79 +#include <linux/ath9k_platform.h>
  80 +#include <linux/pci.h>
  81 +#include <linux/err.h>
  82 +#include <linux/mtd/mtd.h>
  83 +#include <pci-ath-fixup.h>
  84 +#include <lantiq_soc.h>
  85 +#include <linux/of_net.h>
  86 +
  87 +extern int (*ltq_pci_plat_dev_init)(struct pci_dev *dev);
  88 +struct ath5k_platform_data ath5k_pdata;
  89 +struct ath9k_platform_data ath9k_pdata = {
  90 +       .led_pin = -1,
  91 +};
  92 +static u8 athxk_eeprom_mac[6];
  93 +
  94 +static int ath9k_pci_plat_dev_init(struct pci_dev *dev)
  95 +{
  96 +       dev->dev.platform_data = &ath9k_pdata;
  97 +       return 0;
  98 +}
  99 +
 100 +int __init of_ath9k_eeprom_probe(struct platform_device *pdev)
 101 +{
 102 +       struct device_node *np = pdev->dev.of_node, *mtd_np;
 103 +       int mac_offset;
 104 +       u32 mac_inc = 0, pci_slot = 0;
 105 +       int i;
 106 +       struct mtd_info *the_mtd;
 107 +       size_t flash_readlen;
 108 +       const __be32 *list;
 109 +       const char *part;
 110 +       phandle phandle;
 111 +
 112 +       list = of_get_property(np, "ath,eep-flash", &i);
 113 +       if (!list || (i !=  (2 * sizeof(*list)))) {
 114 +               dev_err(&pdev->dev, "failed to find ath,eep-flash\n");
 115 +               return -ENODEV;
 116 +       }
 117 +
 118 +       phandle = be32_to_cpup(list++);
 119 +       if (!phandle) {
 120 +               dev_err(&pdev->dev, "failed to find phandle\n");
 121 +               return -ENODEV;
 122 +       }
 123 +
 124 +       mtd_np = of_find_node_by_phandle(phandle);
 125 +       if (!mtd_np) {
 126 +               dev_err(&pdev->dev, "failed to find mtd node\n");
 127 +               return -ENODEV;
 128 +       }
 129 +
 130 +       part = of_get_property(mtd_np, "label", NULL);
 131 +       if (!part)
 132 +               part = mtd_np->name;
 133 +
 134 +       the_mtd = get_mtd_device_nm(part);
 135 +       if (the_mtd == ERR_PTR(-ENODEV)) {
 136 +               dev_err(&pdev->dev, "failed to find mtd device\n");
 137 +               return -ENODEV;
 138 +       }
 139 +
 140 +       i = mtd_read(the_mtd, be32_to_cpup(list),
 141 +                       ATH9K_PLAT_EEP_MAX_WORDS << 1, &flash_readlen,
 142 +                       (void *) ath9k_pdata.eeprom_data);
 143 +       put_mtd_device(the_mtd);
 144 +       if ((sizeof(ath9k_pdata.eeprom_data) != flash_readlen) || i) {
 145 +               dev_err(&pdev->dev, "failed to load eeprom from mtd\n");
 146 +               return -ENODEV;
 147 +       }
 148 +
 149 +       if (of_find_property(np, "ath,eep-swap", NULL))
 150 +               for (i = 0; i < ATH9K_PLAT_EEP_MAX_WORDS; i++)
 151 +                       ath9k_pdata.eeprom_data[i] = swab16(ath9k_pdata.eeprom_data[i]);
 152 +
 153 +       if (of_find_property(np, "ath,eep-endian", NULL)) {
 154 +               ath9k_pdata.endian_check = true;
 155 +
 156 +               dev_info(&pdev->dev, "endian check enabled.\n");
 157 +       }
 158 +
 159 +       if (!of_property_read_u32(np, "ath,mac-offset", &mac_offset)) {
 160 +               memcpy_fromio(athxk_eeprom_mac, (void*) ath9k_pdata.eeprom_data + mac_offset, 6);
 161 +       } else {
 162 +               random_ether_addr(athxk_eeprom_mac);
 163 +               if (of_get_mac_address_mtd(np, athxk_eeprom_mac))
 164 +                       dev_warn(&pdev->dev, "using random mac\n");
 165 +       }
 166 +
 167 +       if (!of_property_read_u32(np, "ath,mac-increment", &mac_inc))
 168 +               athxk_eeprom_mac[5] += mac_inc;
 169 +
 170 +       ath9k_pdata.macaddr = athxk_eeprom_mac;
 171 +       ltq_pci_plat_dev_init = ath9k_pci_plat_dev_init;
 172 +
 173 +       if (!of_property_read_u32(np, "ath,pci-slot", &pci_slot)) {
 174 +               ltq_pci_ath_fixup(pci_slot, ath9k_pdata.eeprom_data);
 175 +               dev_info(&pdev->dev, "pci slot: %u\n", pci_slot);
 176 +       }
 177 +
 178 +       dev_info(&pdev->dev, "loaded ath9k eeprom\n");
 179 +
 180 +       return 0;
 181 +}
 182 +
 183 +static struct of_device_id ath9k_eeprom_ids[] = {
 184 +       { .compatible = "ath9k,eeprom" },
 185 +       { }
 186 +};
 187 +
 188 +static struct platform_driver ath9k_eeprom_driver = {
 189 +       .driver         = {
 190 +               .name           = "ath9k,eeprom",
 191 +               .owner  = THIS_MODULE,
 192 +               .of_match_table = of_match_ptr(ath9k_eeprom_ids),
 193 +       },
 194 +};
 195 +
 196 +static int __init of_ath9k_eeprom_init(void)
 197 +{
 198 +       return platform_driver_probe(&ath9k_eeprom_driver, of_ath9k_eeprom_probe);
 199 +}
 200 +late_initcall(of_ath9k_eeprom_init);
 201 +
 202 +
 203 +static int ath5k_pci_plat_dev_init(struct pci_dev *dev)
 204 +{
 205 +       dev->dev.platform_data = &ath5k_pdata;
 206 +       return 0;
 207 +}
 208 +
 209 +int __init of_ath5k_eeprom_probe(struct platform_device *pdev)
 210 +{
 211 +       struct device_node *np = pdev->dev.of_node, *mtd_np;
 212 +       int mac_offset;
 213 +       u32 mac_inc = 0;
 214 +       int i;
 215 +       struct mtd_info *the_mtd;
 216 +       size_t flash_readlen;
 217 +       const __be32 *list;
 218 +       const char *part;
 219 +       phandle phandle;
 220 +
 221 +       list = of_get_property(np, "ath,eep-flash", &i);
 222 +       if (!list || (i !=  (2 * sizeof(*list)))) {
 223 +               dev_err(&pdev->dev, "failed to find ath,eep-flash\n");
 224 +               return -ENODEV;
 225 +       }
 226 +
 227 +       phandle = be32_to_cpup(list++);
 228 +       if (!phandle) {
 229 +               dev_err(&pdev->dev, "failed to find phandle\n");
 230 +               return -ENODEV;
 231 +       }
 232 +
 233 +       mtd_np = of_find_node_by_phandle(phandle);
 234 +       if (!mtd_np) {
 235 +               dev_err(&pdev->dev, "failed to find mtd node\n");
 236 +               return -ENODEV;
 237 +       }
 238 +
 239 +       part = of_get_property(mtd_np, "label", NULL);
 240 +       if (!part)
 241 +               part = mtd_np->name;
 242 +
 243 +       the_mtd = get_mtd_device_nm(part);
 244 +       if (the_mtd == ERR_PTR(-ENODEV)) {
 245 +               dev_err(&pdev->dev, "failed to find mtd device\n");
 246 +               return -ENODEV;
 247 +       }
 248 +
 249 +       i = mtd_read(the_mtd, be32_to_cpup(list),
 250 +                       ATH5K_PLAT_EEP_MAX_WORDS << 1, &flash_readlen,
 251 +                       (void *) ath5k_pdata.eeprom_data);
 252 +       put_mtd_device(the_mtd);
 253 +       if ((sizeof(ath5k_pdata.eeprom_data) != flash_readlen) || i) {
 254 +               dev_err(&pdev->dev, "failed to load eeprom from mtd\n");
 255 +               return -ENODEV;
 256 +       }
 257 +
 258 +       if (of_find_property(np, "ath,eep-swap", NULL))
 259 +               for (i = 0; i < ATH5K_PLAT_EEP_MAX_WORDS; i++)
 260 +                       ath5k_pdata.eeprom_data[i] = swab16(ath9k_pdata.eeprom_data[i]);
 261 +
 262 +       if (!of_property_read_u32(np, "ath,mac-offset", &mac_offset)) {
 263 +               memcpy_fromio(athxk_eeprom_mac, (void*) ath5k_pdata.eeprom_data + mac_offset, 6);
 264 +       } else {
 265 +               random_ether_addr(athxk_eeprom_mac);
 266 +               if (of_get_mac_address_mtd(np, athxk_eeprom_mac))
 267 +                       dev_warn(&pdev->dev, "using random mac\n");
 268 +       }
 269 +
 270 +       if (!of_property_read_u32(np, "ath,mac-increment", &mac_inc))
 271 +               athxk_eeprom_mac[5] += mac_inc;
 272 +
 273 +       ath5k_pdata.macaddr = athxk_eeprom_mac;
 274 +       ltq_pci_plat_dev_init = ath5k_pci_plat_dev_init;
 275 +
 276 +       dev_info(&pdev->dev, "loaded ath5k eeprom\n");
 277 +
 278 +       return 0;
 279 +}
 280 +
 281 +static struct of_device_id ath5k_eeprom_ids[] = {
 282 +       { .compatible = "ath5k,eeprom" },
 283 +       { }
 284 +};
 285 +
 286 +static struct platform_driver ath5k_eeprom_driver = {
 287 +       .driver         = {
 288 +               .name           = "ath5k,eeprom",
 289 +               .owner  = THIS_MODULE,
 290 +               .of_match_table = of_match_ptr(ath5k_eeprom_ids),
 291 +       },
 292 +};
 293 +
 294 +static int __init of_ath5k_eeprom_init(void)
 295 +{
 296 +       return platform_driver_probe(&ath5k_eeprom_driver, of_ath5k_eeprom_probe);
 297 +}
 298 +device_initcall(of_ath5k_eeprom_init);
 299 diff --git a/arch/mips/lantiq/xway/pci-ath-fixup.c b/arch/mips/lantiq/xway/pci-ath-fixup.c
 300 new file mode 100644
 301 index 0000000..c87ffb2
 302 --- /dev/null
 303 +++ b/arch/mips/lantiq/xway/pci-ath-fixup.c
 304 @@ -0,0 +1,109 @@
 305 +/*
 306 + *  Atheros AP94 reference board PCI initialization
 307 + *
 308 + *  Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org>
 309 + *
 310 + *  This program is free software; you can redistribute it and/or modify it
 311 + *  under the terms of the GNU General Public License version 2 as published
 312 + *  by the Free Software Foundation.
 313 + */
 314 +
 315 +#include <linux/pci.h>
 316 +#include <linux/init.h>
 317 +#include <linux/delay.h>
 318 +#include <lantiq_soc.h>
 319 +
 320 +#define LTQ_PCI_MEM_BASE               0x18000000
 321 +
 322 +struct ath_fixup {
 323 +       u16             *cal_data;
 324 +       unsigned        slot;
 325 +};
 326 +
 327 +static int ath_num_fixups;
 328 +static struct ath_fixup ath_fixups[2];
 329 +
 330 +static void ath_pci_fixup(struct pci_dev *dev)
 331 +{
 332 +       void __iomem *mem;
 333 +       u16 *cal_data = NULL;
 334 +       u16 cmd;
 335 +       u32 bar0;
 336 +       u32 val;
 337 +       unsigned i;
 338 +
 339 +       for (i = 0; i < ath_num_fixups; i++) {
 340 +               if (ath_fixups[i].cal_data == NULL)
 341 +                       continue;
 342 +
 343 +               if (ath_fixups[i].slot != PCI_SLOT(dev->devfn))
 344 +                       continue;
 345 +
 346 +               cal_data = ath_fixups[i].cal_data;
 347 +               break;
 348 +       }
 349 +
 350 +       if (cal_data == NULL)
 351 +               return;
 352 +
 353 +       if (*cal_data != 0xa55a) {
 354 +               pr_err("pci %s: invalid calibration data\n", pci_name(dev));
 355 +               return;
 356 +       }
 357 +
 358 +       pr_info("pci %s: fixup device configuration\n", pci_name(dev));
 359 +
 360 +       mem = ioremap(LTQ_PCI_MEM_BASE, 0x10000);
 361 +       if (!mem) {
 362 +               pr_err("pci %s: ioremap error\n", pci_name(dev));
 363 +               return;
 364 +       }
 365 +
 366 +       pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &bar0);
 367 +       pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, LTQ_PCI_MEM_BASE);
 368 +       pci_read_config_word(dev, PCI_COMMAND, &cmd);
 369 +       cmd |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
 370 +       pci_write_config_word(dev, PCI_COMMAND, cmd);
 371 +
 372 +       /* set pointer to first reg address */
 373 +       cal_data += 3;
 374 +       while (*cal_data != 0xffff) {
 375 +               u32 reg;
 376 +               reg = *cal_data++;
 377 +               val = *cal_data++;
 378 +               val |= (*cal_data++) << 16;
 379 +
 380 +               ltq_w32(swab32(val), mem + reg);
 381 +               udelay(100);
 382 +       }
 383 +
 384 +       pci_read_config_dword(dev, PCI_VENDOR_ID, &val);
 385 +       dev->vendor = val & 0xffff;
 386 +       dev->device = (val >> 16) & 0xffff;
 387 +
 388 +       pci_read_config_dword(dev, PCI_CLASS_REVISION, &val);
 389 +       dev->revision = val & 0xff;
 390 +       dev->class = val >> 8; /* upper 3 bytes */
 391 +
 392 +       pr_info("pci %s: fixup info: [%04x:%04x] revision %02x class %#08x\n",
 393 +               pci_name(dev), dev->vendor, dev->device, dev->revision, dev->class);
 394 +
 395 +       pci_read_config_word(dev, PCI_COMMAND, &cmd);
 396 +       cmd &= ~(PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY);
 397 +       pci_write_config_word(dev, PCI_COMMAND, cmd);
 398 +
 399 +       pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, bar0);
 400 +
 401 +       iounmap(mem);
 402 +}
 403 +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ATHEROS, PCI_ANY_ID, ath_pci_fixup);
 404 +
 405 +void __init ltq_pci_ath_fixup(unsigned slot, u16 *cal_data)
 406 +{
 407 +       if (ath_num_fixups >= ARRAY_SIZE(ath_fixups))
 408 +               return;
 409 +
 410 +       ath_fixups[ath_num_fixups].slot = slot;
 411 +       ath_fixups[ath_num_fixups].cal_data = cal_data;
 412 +       ath_num_fixups++;
 413 +}
 414 diff --git a/arch/mips/lantiq/xway/rt_eep.c b/arch/mips/lantiq/xway/rt_eep.c
 415 new file mode 100644
 416 index 0000000..00f2d4c
 417 --- /dev/null
 418 +++ b/arch/mips/lantiq/xway/rt_eep.c
 419 @@ -0,0 +1,60 @@
 420 +/*
 421 + *  Copyright (C) 2011 John Crispin <blogic@openwrt.org>
 422 + *
 423 + *  This program is free software; you can redistribute it and/or modify it
 424 + *  under the terms of the GNU General Public License version 2 as published
 425 + *  by the Free Software Foundation.
 426 + */
 427 +
 428 +#include <linux/init.h>
 429 +#include <linux/module.h>
 430 +#include <linux/pci.h>
 431 +#include <linux/platform_device.h>
 432 +#include <linux/rt2x00_platform.h>
 433 +
 434 +extern int (*ltq_pci_plat_dev_init)(struct pci_dev *dev);
 435 +static struct rt2x00_platform_data rt2x00_pdata;
 436 +
 437 +static int rt2x00_pci_plat_dev_init(struct pci_dev *dev)
 438 +{
 439 +       dev->dev.platform_data = &rt2x00_pdata;
 440 +       return 0;
 441 +}
 442 +
 443 +int __init of_ralink_eeprom_probe(struct platform_device *pdev)
 444 +{
 445 +       struct device_node *np = pdev->dev.of_node;
 446 +       const char *eeprom;
 447 +
 448 +       if (of_property_read_string(np, "ralink,eeprom", &eeprom)) {
 449 +               dev_err(&pdev->dev, "failed to load eeprom filename\n");
 450 +               return 0;
 451 +       }
 452 +
 453 +       rt2x00_pdata.eeprom_file_name = kstrdup(eeprom, GFP_KERNEL);
 454 +//     rt2x00_pdata.mac_address = mac;
 455 +       ltq_pci_plat_dev_init = rt2x00_pci_plat_dev_init;
 456 +
 457 +       dev_info(&pdev->dev, "using %s as eeprom\n", eeprom);
 458 +
 459 +       return 0;
 460 +}
 461 +
 462 +static struct of_device_id ralink_eeprom_ids[] = {
 463 +       { .compatible = "ralink,eeprom" },
 464 +       { }
 465 +};
 466 +
 467 +static struct platform_driver ralink_eeprom_driver = {
 468 +       .driver         = {
 469 +               .name           = "ralink,eeprom",
 470 +               .owner  = THIS_MODULE,
 471 +               .of_match_table = of_match_ptr(ralink_eeprom_ids),
 472 +       },
 473 +};
 474 +
 475 +static int __init of_ralink_eeprom_init(void)
 476 +{
 477 +       return platform_driver_probe(&ralink_eeprom_driver, of_ralink_eeprom_probe);
 478 +}
 479 +device_initcall(of_ralink_eeprom_init);
 480 --
 481 1.7.10.4
 482