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
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
23 +++ b/arch/mips/include/asm/mach-lantiq/pci-ath-fixup.h
25 +#ifndef _PCI_ATH_FIXUP
26 +#define _PCI_ATH_FIXUP
28 +void ltq_pci_ath_fixup(unsigned slot, u16 *cal_data) __init;
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);
37 +/* allow the ethernet driver to load a flash mapped mac addr */
38 +const u8* ltq_get_eth_mac(void);
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
45 obj-y := prom.o sysctrl.o clk.o reset.o dma.o gptu.o dcdc.o
48 +obj-$(CONFIG_PCI) += ath_eep.o rt_eep.o pci-ath-fixup.o
50 obj-$(CONFIG_XRX200_PHY_FW) += xrx200_phy_fw.o
52 +++ b/arch/mips/lantiq/xway/ath_eep.c
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 + * Copyright (C) 2013 Daniel Gimpelevich <daniel@gimpelevich.san-francisco.ca.us>
61 + * This program is free software; you can redistribute it and/or modify it
62 + * under the terms of the GNU General Public License version 2 as published
63 + * by the Free Software Foundation.
66 +#include <linux/init.h>
67 +#include <linux/module.h>
68 +#include <linux/platform_device.h>
69 +#include <linux/etherdevice.h>
70 +#include <linux/ath5k_platform.h>
71 +#include <linux/ath9k_platform.h>
72 +#include <linux/pci.h>
73 +#include <linux/err.h>
74 +#include <linux/mtd/mtd.h>
75 +#include <pci-ath-fixup.h>
76 +#include <lantiq_soc.h>
78 +extern int (*ltq_pci_plat_dev_init)(struct pci_dev *dev);
79 +struct ath5k_platform_data ath5k_pdata;
80 +struct ath9k_platform_data ath9k_pdata = {
83 +static u8 athxk_eeprom_mac[6];
85 +static int ath9k_pci_plat_dev_init(struct pci_dev *dev)
87 + dev->dev.platform_data = &ath9k_pdata;
91 +int __init of_ath9k_eeprom_probe(struct platform_device *pdev)
93 + struct device_node *np = pdev->dev.of_node, *mtd_np;
94 + struct resource *eep_res, *mac_res = NULL;
95 + void __iomem *eep, *mac;
97 + u32 mac_inc = 0, pci_slot = 0;
99 + struct mtd_info *the_mtd;
100 + size_t flash_readlen;
101 + const __be32 *list;
105 + if ((list = of_get_property(np, "ath,eep-flash", &i)) && i == 2 *
106 + sizeof(*list) && (phandle = be32_to_cpup(list++)) &&
107 + (mtd_np = of_find_node_by_phandle(phandle)) && ((part =
108 + of_get_property(mtd_np, "label", NULL)) || (part =
109 + mtd_np->name)) && (the_mtd = get_mtd_device_nm(part))
110 + != ERR_PTR(-ENODEV)) {
111 + i = mtd_read(the_mtd, be32_to_cpup(list),
112 + ATH9K_PLAT_EEP_MAX_WORDS << 1, &flash_readlen,
113 + (void *) ath9k_pdata.eeprom_data);
114 + put_mtd_device(the_mtd);
115 + if ((sizeof(ath9k_pdata.eeprom_data) != flash_readlen) || i) {
116 + dev_err(&pdev->dev, "failed to load eeprom from mtd\n");
120 + eep_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
121 + mac_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
124 + dev_err(&pdev->dev, "failed to load eeprom address\n");
127 + if (resource_size(eep_res) != ATH9K_PLAT_EEP_MAX_WORDS << 1) {
128 + dev_err(&pdev->dev, "eeprom has an invalid size\n");
132 + eep = ioremap(eep_res->start, resource_size(eep_res));
133 + memcpy_fromio(ath9k_pdata.eeprom_data, eep,
134 + ATH9K_PLAT_EEP_MAX_WORDS << 1);
137 + if (of_find_property(np, "ath,eep-swap", NULL))
138 + for (i = 0; i < ATH9K_PLAT_EEP_MAX_WORDS; i++)
139 + ath9k_pdata.eeprom_data[i] = swab16(ath9k_pdata.eeprom_data[i]);
141 + if (of_find_property(np, "ath,eep-endian", NULL)) {
142 + ath9k_pdata.endian_check = true;
144 + dev_info(&pdev->dev, "endian check enabled.\n");
147 + if (!of_property_read_u32(np, "ath,mac-offset", &mac_offset)) {
148 + memcpy_fromio(athxk_eeprom_mac, (void*) ath9k_pdata.eeprom_data + mac_offset, 6);
149 + } else if (mac_res) {
150 + if (resource_size(mac_res) != 6) {
151 + dev_err(&pdev->dev, "mac has an invalid size\n");
154 + mac = ioremap(mac_res->start, resource_size(mac_res));
155 + memcpy_fromio(athxk_eeprom_mac, mac, 6);
156 + } else if (ltq_get_eth_mac())
157 + memcpy(athxk_eeprom_mac, ltq_get_eth_mac(), 6);
159 + dev_warn(&pdev->dev, "using random mac\n");
160 + random_ether_addr(athxk_eeprom_mac);
163 + if (!of_property_read_u32(np, "ath,mac-increment", &mac_inc))
164 + athxk_eeprom_mac[5] += mac_inc;
166 + ath9k_pdata.macaddr = athxk_eeprom_mac;
167 + ltq_pci_plat_dev_init = ath9k_pci_plat_dev_init;
169 + if (!of_property_read_u32(np, "ath,pci-slot", &pci_slot)) {
170 + ltq_pci_ath_fixup(pci_slot, ath9k_pdata.eeprom_data);
172 + dev_info(&pdev->dev, "pci slot: %u\n", pci_slot);
175 + dev_info(&pdev->dev, "loaded ath9k eeprom\n");
180 +static struct of_device_id ath9k_eeprom_ids[] = {
181 + { .compatible = "ath9k,eeprom" },
185 +static struct platform_driver ath9k_eeprom_driver = {
187 + .name = "ath9k,eeprom",
188 + .owner = THIS_MODULE,
189 + .of_match_table = of_match_ptr(ath9k_eeprom_ids),
193 +static int __init of_ath9k_eeprom_init(void)
195 + return platform_driver_probe(&ath9k_eeprom_driver, of_ath9k_eeprom_probe);
197 +arch_initcall(of_ath9k_eeprom_init);
200 +static int ath5k_pci_plat_dev_init(struct pci_dev *dev)
202 + dev->dev.platform_data = &ath5k_pdata;
206 +int __init of_ath5k_eeprom_probe(struct platform_device *pdev)
208 + struct device_node *np = pdev->dev.of_node, *mtd_np;
209 + struct resource *eep_res, *mac_res = NULL;
210 + void __iomem *eep, *mac;
214 + struct mtd_info *the_mtd;
215 + size_t flash_readlen;
216 + const __be32 *list;
220 + if ((list = of_get_property(np, "ath,eep-flash", &i)) && i == 2 *
221 + sizeof(*list) && (phandle = be32_to_cpup(list++)) &&
222 + (mtd_np = of_find_node_by_phandle(phandle)) && ((part =
223 + of_get_property(mtd_np, "label", NULL)) || (part =
224 + mtd_np->name)) && (the_mtd = get_mtd_device_nm(part))
225 + != ERR_PTR(-ENODEV)) {
226 + i = mtd_read(the_mtd, be32_to_cpup(list),
227 + ATH5K_PLAT_EEP_MAX_WORDS << 1, &flash_readlen,
228 + (void *) ath5k_pdata.eeprom_data);
229 + put_mtd_device(the_mtd);
230 + if ((sizeof(ATH5K_PLAT_EEP_MAX_WORDS << 1) != flash_readlen)
232 + dev_err(&pdev->dev, "failed to load eeprom from mtd\n");
236 + eep_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
237 + mac_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
240 + dev_err(&pdev->dev, "failed to load eeprom address\n");
243 + if (resource_size(eep_res) != ATH5K_PLAT_EEP_MAX_WORDS << 1) {
244 + dev_err(&pdev->dev, "eeprom has an invalid size\n");
248 + eep = ioremap(eep_res->start, resource_size(eep_res));
249 + ath5k_pdata.eeprom_data = kmalloc(ATH5K_PLAT_EEP_MAX_WORDS<<1,
251 + memcpy_fromio(ath5k_pdata.eeprom_data, eep,
252 + ATH5K_PLAT_EEP_MAX_WORDS << 1);
255 + if (of_find_property(np, "ath,eep-swap", NULL))
256 + for (i = 0; i < ATH5K_PLAT_EEP_MAX_WORDS; i++)
257 + ath5k_pdata.eeprom_data[i] = swab16(ath5k_pdata.eeprom_data[i]);
259 + if (!of_property_read_u32(np, "ath,mac-offset", &mac_offset)) {
260 + memcpy_fromio(athxk_eeprom_mac, (void*) ath5k_pdata.eeprom_data + mac_offset, 6);
261 + } else if (mac_res) {
262 + if (resource_size(mac_res) != 6) {
263 + dev_err(&pdev->dev, "mac has an invalid size\n");
266 + mac = ioremap(mac_res->start, resource_size(mac_res));
267 + memcpy_fromio(athxk_eeprom_mac, mac, 6);
268 + } else if (ltq_get_eth_mac())
269 + memcpy(athxk_eeprom_mac, ltq_get_eth_mac(), 6);
271 + dev_warn(&pdev->dev, "using random mac\n");
272 + random_ether_addr(athxk_eeprom_mac);
275 + if (!of_property_read_u32(np, "ath,mac-increment", &mac_inc))
276 + athxk_eeprom_mac[5] += mac_inc;
278 + ath5k_pdata.macaddr = athxk_eeprom_mac;
279 + ltq_pci_plat_dev_init = ath5k_pci_plat_dev_init;
281 + dev_info(&pdev->dev, "loaded ath5k eeprom\n");
286 +static struct of_device_id ath5k_eeprom_ids[] = {
287 + { .compatible = "ath5k,eeprom" },
291 +static struct platform_driver ath5k_eeprom_driver = {
293 + .name = "ath5k,eeprom",
294 + .owner = THIS_MODULE,
295 + .of_match_table = of_match_ptr(ath5k_eeprom_ids),
299 +static int __init of_ath5k_eeprom_init(void)
301 + return platform_driver_probe(&ath5k_eeprom_driver, of_ath5k_eeprom_probe);
303 +device_initcall(of_ath5k_eeprom_init);
305 +++ b/arch/mips/lantiq/xway/eth_mac.c
308 + * Copyright (C) 2012 John Crispin <blogic@openwrt.org>
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.
315 +#include <linux/init.h>
316 +#include <linux/module.h>
317 +#include <linux/of_platform.h>
318 +#include <linux/if_ether.h>
320 +static u8 eth_mac[6];
321 +static int eth_mac_set;
323 +const u8* ltq_get_eth_mac(void)
328 +static int __init setup_ethaddr(char *str)
330 + eth_mac_set = mac_pton(str, eth_mac);
331 + return !eth_mac_set;
333 +__setup("ethaddr=", setup_ethaddr);
335 +int __init of_eth_mac_probe(struct platform_device *pdev)
337 + struct device_node *np = pdev->dev.of_node;
338 + struct resource *mac_res;
343 + dev_err(&pdev->dev, "mac was already set by bootloader\n");
346 + mac_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
349 + dev_err(&pdev->dev, "failed to load mac\n");
352 + if (resource_size(mac_res) != 6) {
353 + dev_err(&pdev->dev, "mac has an invalid size\n");
356 + mac = ioremap(mac_res->start, resource_size(mac_res));
357 + memcpy_fromio(eth_mac, mac, 6);
359 + if (!of_property_read_u32(np, "mac-increment", &mac_inc))
360 + eth_mac[5] += mac_inc;
365 +static struct of_device_id eth_mac_ids[] = {
366 + { .compatible = "lantiq,eth-mac" },
370 +static struct platform_driver eth_mac_driver = {
372 + .name = "lantiq,eth-mac",
373 + .owner = THIS_MODULE,
374 + .of_match_table = of_match_ptr(eth_mac_ids),
378 +static int __init of_eth_mac_init(void)
380 + return platform_driver_probe(ð_mac_driver, of_eth_mac_probe);
382 +device_initcall(of_eth_mac_init);
384 +++ b/arch/mips/lantiq/xway/pci-ath-fixup.c
387 + * Atheros AP94 reference board PCI initialization
389 + * Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org>
391 + * This program is free software; you can redistribute it and/or modify it
392 + * under the terms of the GNU General Public License version 2 as published
393 + * by the Free Software Foundation.
396 +#include <linux/pci.h>
397 +#include <linux/init.h>
398 +#include <linux/delay.h>
399 +#include <lantiq_soc.h>
401 +#define LTQ_PCI_MEM_BASE 0x18000000
408 +static int ath_num_fixups;
409 +static struct ath_fixup ath_fixups[2];
411 +static void ath_pci_fixup(struct pci_dev *dev)
414 + u16 *cal_data = NULL;
420 + for (i = 0; i < ath_num_fixups; i++) {
421 + if (ath_fixups[i].cal_data == NULL)
424 + if (ath_fixups[i].slot != PCI_SLOT(dev->devfn))
427 + cal_data = ath_fixups[i].cal_data;
431 + if (cal_data == NULL)
434 + if (*cal_data != 0xa55a) {
435 + pr_err("pci %s: invalid calibration data\n", pci_name(dev));
439 + pr_info("pci %s: fixup device configuration\n", pci_name(dev));
441 + mem = ioremap(LTQ_PCI_MEM_BASE, 0x10000);
443 + pr_err("pci %s: ioremap error\n", pci_name(dev));
447 + pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &bar0);
448 + pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, LTQ_PCI_MEM_BASE);
449 + pci_read_config_word(dev, PCI_COMMAND, &cmd);
450 + cmd |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
451 + pci_write_config_word(dev, PCI_COMMAND, cmd);
453 + /* set pointer to first reg address */
455 + while (*cal_data != 0xffff) {
459 + val |= (*cal_data++) << 16;
461 + ltq_w32(swab32(val), mem + reg);
465 + pci_read_config_dword(dev, PCI_VENDOR_ID, &val);
466 + dev->vendor = val & 0xffff;
467 + dev->device = (val >> 16) & 0xffff;
469 + pci_read_config_dword(dev, PCI_CLASS_REVISION, &val);
470 + dev->revision = val & 0xff;
471 + dev->class = val >> 8; /* upper 3 bytes */
473 + pr_info("pci %s: fixup info: [%04x:%04x] revision %02x class %#08x\n",
474 + pci_name(dev), dev->vendor, dev->device, dev->revision, dev->class);
476 + pci_read_config_word(dev, PCI_COMMAND, &cmd);
477 + cmd &= ~(PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY);
478 + pci_write_config_word(dev, PCI_COMMAND, cmd);
480 + pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, bar0);
484 +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ATHEROS, PCI_ANY_ID, ath_pci_fixup);
486 +void __init ltq_pci_ath_fixup(unsigned slot, u16 *cal_data)
488 + if (ath_num_fixups >= ARRAY_SIZE(ath_fixups))
491 + ath_fixups[ath_num_fixups].slot = slot;
492 + ath_fixups[ath_num_fixups].cal_data = cal_data;
496 +++ b/arch/mips/lantiq/xway/rt_eep.c
499 + * Copyright (C) 2011 John Crispin <blogic@openwrt.org>
501 + * This program is free software; you can redistribute it and/or modify it
502 + * under the terms of the GNU General Public License version 2 as published
503 + * by the Free Software Foundation.
506 +#include <linux/init.h>
507 +#include <linux/module.h>
508 +#include <linux/pci.h>
509 +#include <linux/platform_device.h>
510 +#include <linux/rt2x00_platform.h>
512 +extern int (*ltq_pci_plat_dev_init)(struct pci_dev *dev);
513 +static struct rt2x00_platform_data rt2x00_pdata;
515 +static int rt2x00_pci_plat_dev_init(struct pci_dev *dev)
517 + dev->dev.platform_data = &rt2x00_pdata;
521 +int __init of_ralink_eeprom_probe(struct platform_device *pdev)
523 + struct device_node *np = pdev->dev.of_node;
524 + const char *eeprom;
526 + if (of_property_read_string(np, "ralink,eeprom", &eeprom)) {
527 + dev_err(&pdev->dev, "failed to load eeprom filename\n");
531 + rt2x00_pdata.eeprom_file_name = kstrdup(eeprom, GFP_KERNEL);
532 +// rt2x00_pdata.mac_address = mac;
533 + ltq_pci_plat_dev_init = rt2x00_pci_plat_dev_init;
535 + dev_info(&pdev->dev, "using %s as eeprom\n", eeprom);
540 +static struct of_device_id ralink_eeprom_ids[] = {
541 + { .compatible = "ralink,eeprom" },
545 +static struct platform_driver ralink_eeprom_driver = {
547 + .name = "ralink,eeprom",
548 + .owner = THIS_MODULE,
549 + .of_match_table = of_match_ptr(ralink_eeprom_ids),
553 +static int __init of_ralink_eeprom_init(void)
555 + return platform_driver_probe(&ralink_eeprom_driver, of_ralink_eeprom_probe);
557 +device_initcall(of_ralink_eeprom_init);