1 From f8c5db89e793a4bc6c1e87bd7b3a5cec16b75bc3 Mon Sep 17 00:00:00 2001
2 From: John Crispin <blogic@openwrt.org>
3 Date: Wed, 10 Sep 2014 22:42:14 +0200
4 Subject: [PATCH 35/36] owrt: lantiq: wifi and ethernet eeprom handling
6 Signed-off-by: John Crispin <blogic@openwrt.org>
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 | 3 +
11 arch/mips/lantiq/xway/ath_eep.c | 282 ++++++++++++++++++++
12 arch/mips/lantiq/xway/eth_mac.c | 76 ++++++
13 arch/mips/lantiq/xway/pci-ath-fixup.c | 109 ++++++++
14 arch/mips/lantiq/xway/rt_eep.c | 60 +++++
15 7 files changed, 539 insertions(+)
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
44 @@ -2,4 +2,7 @@ obj-y := prom.o sysctrl.o clk.o reset.o
46 obj-y += vmmc.o tffs.o
49 +obj-$(CONFIG_PCI) += ath_eep.o rt_eep.o pci-ath-fixup.o
51 obj-$(CONFIG_XRX200_PHY_FW) += xrx200_phy_fw.o
53 +++ b/arch/mips/lantiq/xway/ath_eep.c
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 + * Copyright (C) 2015 Vittorio Gambaletta <openwrt@vittgam.net>
63 + * This program is free software; you can redistribute it and/or modify it
64 + * under the terms of the GNU General Public License version 2 as published
65 + * by the Free Software Foundation.
68 +#include <linux/init.h>
69 +#include <linux/module.h>
70 +#include <linux/platform_device.h>
71 +#include <linux/etherdevice.h>
72 +#include <linux/ath5k_platform.h>
73 +#include <linux/ath9k_platform.h>
74 +#include <linux/pci.h>
75 +#include <linux/err.h>
76 +#include <linux/mtd/mtd.h>
77 +#include <pci-ath-fixup.h>
78 +#include <lantiq_soc.h>
80 +extern int (*ltq_pci_plat_dev_init)(struct pci_dev *dev);
81 +struct ath5k_platform_data ath5k_pdata;
82 +struct ath9k_platform_data ath9k_pdata = {
85 +static u8 athxk_eeprom_mac[6];
87 +static int ath9k_pci_plat_dev_init(struct pci_dev *dev)
89 + dev->dev.platform_data = &ath9k_pdata;
93 +static int ath9k_eep_load;
94 +int __init of_ath9k_eeprom_probe(struct platform_device *pdev)
96 + struct device_node *np = pdev->dev.of_node, *mtd_np;
97 + struct resource *eep_res, *mac_res = NULL;
98 + void __iomem *eep, *mac;
99 + int mac_offset, led_pin;
100 + u32 mac_inc = 0, pci_slot = 0;
102 + struct mtd_info *the_mtd;
103 + size_t flash_readlen;
104 + const __be32 *list;
108 + if ((list = of_get_property(np, "ath,eep-flash", &i)) && i == 2 *
109 + sizeof(*list) && (phandle = be32_to_cpup(list++)) &&
110 + (mtd_np = of_find_node_by_phandle(phandle)) && ((part =
111 + of_get_property(mtd_np, "label", NULL)) || (part =
112 + mtd_np->name)) && (the_mtd = get_mtd_device_nm(part))
113 + != ERR_PTR(-ENODEV)) {
114 + i = mtd_read(the_mtd, be32_to_cpup(list),
115 + ATH9K_PLAT_EEP_MAX_WORDS << 1, &flash_readlen,
116 + (void *) ath9k_pdata.eeprom_data);
117 + if (!of_property_read_u32(np, "ath,mac-offset", &mac_offset)) {
118 + size_t mac_readlen;
119 + mtd_read(the_mtd, mac_offset, 6, &mac_readlen,
120 + (void *) athxk_eeprom_mac);
122 + put_mtd_device(the_mtd);
123 + if ((sizeof(ath9k_pdata.eeprom_data) != flash_readlen) || i) {
124 + dev_err(&pdev->dev, "failed to load eeprom from mtd\n");
128 + eep_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
129 + mac_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
132 + dev_err(&pdev->dev, "failed to load eeprom address\n");
135 + if (resource_size(eep_res) != ATH9K_PLAT_EEP_MAX_WORDS << 1) {
136 + dev_err(&pdev->dev, "eeprom has an invalid size\n");
140 + eep = ioremap(eep_res->start, resource_size(eep_res));
141 + memcpy_fromio(ath9k_pdata.eeprom_data, eep,
142 + ATH9K_PLAT_EEP_MAX_WORDS << 1);
145 + if (of_find_property(np, "ath,eep-swap", NULL))
146 + for (i = 0; i < ATH9K_PLAT_EEP_MAX_WORDS; i++)
147 + ath9k_pdata.eeprom_data[i] = swab16(ath9k_pdata.eeprom_data[i]);
149 + if (of_find_property(np, "ath,eep-endian", NULL)) {
150 + ath9k_pdata.endian_check = true;
152 + dev_info(&pdev->dev, "endian check enabled.\n");
155 + if (!is_valid_ether_addr(athxk_eeprom_mac)) {
157 + if (resource_size(mac_res) != 6) {
158 + dev_err(&pdev->dev, "mac has an invalid size\n");
161 + mac = ioremap(mac_res->start, resource_size(mac_res));
162 + memcpy_fromio(athxk_eeprom_mac, mac, 6);
163 + } else if (ltq_get_eth_mac()) {
164 + memcpy(athxk_eeprom_mac, ltq_get_eth_mac(), 6);
167 + if (!is_valid_ether_addr(athxk_eeprom_mac)) {
168 + dev_warn(&pdev->dev, "using random mac\n");
169 + random_ether_addr(athxk_eeprom_mac);
172 + if (!of_property_read_u32(np, "ath,mac-increment", &mac_inc))
173 + athxk_eeprom_mac[5] += mac_inc;
175 + ath9k_pdata.macaddr = athxk_eeprom_mac;
176 + ltq_pci_plat_dev_init = ath9k_pci_plat_dev_init;
178 + if (!of_property_read_u32(np, "ath,pci-slot", &pci_slot)) {
179 + ltq_pci_ath_fixup(pci_slot, ath9k_pdata.eeprom_data);
181 + dev_info(&pdev->dev, "pci slot: %u\n", pci_slot);
182 + if (ath9k_eep_load) {
183 + struct pci_dev *d = NULL;
184 + while ((d = pci_get_device(PCI_VENDOR_ID_ATHEROS,
185 + PCI_ANY_ID, d)) != NULL)
186 + pci_fixup_device(pci_fixup_early, d);
191 + if (!of_property_read_u32(np, "ath,led-pin", &led_pin)) {
192 + ath9k_pdata.led_pin = led_pin;
193 + dev_info(&pdev->dev, "using led pin %d.\n", led_pin);
196 + if (of_property_read_bool(np, "ath,led-active-high")) {
197 + ath9k_pdata.led_active_high = true;
198 + dev_info(&pdev->dev, "inverted LED polarity\n");
201 + if (of_property_read_bool(np, "ath,disable-2ghz")) {
202 + ath9k_pdata.disable_2ghz = true;
203 + dev_info(&pdev->dev, "disabled 2.4 GHz band\n");
206 + if (of_property_read_bool(np, "ath,disable-5ghz")) {
207 + ath9k_pdata.disable_5ghz = true;
208 + dev_info(&pdev->dev, "disabled 5 GHz band\n");
211 + dev_info(&pdev->dev, "loaded ath9k eeprom\n");
216 +static struct of_device_id ath9k_eeprom_ids[] = {
217 + { .compatible = "ath9k,eeprom" },
221 +static struct platform_driver ath9k_eeprom_driver = {
223 + .name = "ath9k,eeprom",
224 + .owner = THIS_MODULE,
225 + .of_match_table = of_match_ptr(ath9k_eeprom_ids),
229 +static int __init of_ath9k_eeprom_init(void)
231 + int ret = platform_driver_probe(&ath9k_eeprom_driver, of_ath9k_eeprom_probe);
234 + ath9k_eep_load = 1;
239 +static int __init of_ath9k_eeprom_init_late(void)
241 + if (!ath9k_eep_load)
243 + return platform_driver_probe(&ath9k_eeprom_driver, of_ath9k_eeprom_probe);
245 +late_initcall(of_ath9k_eeprom_init_late);
246 +subsys_initcall(of_ath9k_eeprom_init);
249 +static int ath5k_pci_plat_dev_init(struct pci_dev *dev)
251 + dev->dev.platform_data = &ath5k_pdata;
255 +int __init of_ath5k_eeprom_probe(struct platform_device *pdev)
257 + struct device_node *np = pdev->dev.of_node, *mtd_np;
258 + struct resource *eep_res, *mac_res = NULL;
259 + void __iomem *eep, *mac;
263 + struct mtd_info *the_mtd;
264 + size_t flash_readlen;
265 + const __be32 *list;
269 + if ((list = of_get_property(np, "ath,eep-flash", &i)) && i == 2 *
270 + sizeof(*list) && (phandle = be32_to_cpup(list++)) &&
271 + (mtd_np = of_find_node_by_phandle(phandle)) && ((part =
272 + of_get_property(mtd_np, "label", NULL)) || (part =
273 + mtd_np->name)) && (the_mtd = get_mtd_device_nm(part))
274 + != ERR_PTR(-ENODEV)) {
275 + i = mtd_read(the_mtd, be32_to_cpup(list),
276 + ATH5K_PLAT_EEP_MAX_WORDS << 1, &flash_readlen,
277 + (void *) ath5k_pdata.eeprom_data);
278 + put_mtd_device(the_mtd);
279 + if ((sizeof(ATH5K_PLAT_EEP_MAX_WORDS << 1) != flash_readlen)
281 + dev_err(&pdev->dev, "failed to load eeprom from mtd\n");
285 + eep_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
286 + mac_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
289 + dev_err(&pdev->dev, "failed to load eeprom address\n");
292 + if (resource_size(eep_res) != ATH5K_PLAT_EEP_MAX_WORDS << 1) {
293 + dev_err(&pdev->dev, "eeprom has an invalid size\n");
297 + eep = ioremap(eep_res->start, resource_size(eep_res));
298 + ath5k_pdata.eeprom_data = kmalloc(ATH5K_PLAT_EEP_MAX_WORDS<<1,
300 + memcpy_fromio(ath5k_pdata.eeprom_data, eep,
301 + ATH5K_PLAT_EEP_MAX_WORDS << 1);
304 + if (of_find_property(np, "ath,eep-swap", NULL))
305 + for (i = 0; i < ATH5K_PLAT_EEP_MAX_WORDS; i++)
306 + ath5k_pdata.eeprom_data[i] = swab16(ath5k_pdata.eeprom_data[i]);
308 + if (!of_property_read_u32(np, "ath,mac-offset", &mac_offset)) {
309 + memcpy_fromio(athxk_eeprom_mac, (void*) ath5k_pdata.eeprom_data + mac_offset, 6);
310 + } else if (mac_res) {
311 + if (resource_size(mac_res) != 6) {
312 + dev_err(&pdev->dev, "mac has an invalid size\n");
315 + mac = ioremap(mac_res->start, resource_size(mac_res));
316 + memcpy_fromio(athxk_eeprom_mac, mac, 6);
317 + } else if (ltq_get_eth_mac())
318 + memcpy(athxk_eeprom_mac, ltq_get_eth_mac(), 6);
320 + dev_warn(&pdev->dev, "using random mac\n");
321 + random_ether_addr(athxk_eeprom_mac);
324 + if (!of_property_read_u32(np, "ath,mac-increment", &mac_inc))
325 + athxk_eeprom_mac[5] += mac_inc;
327 + ath5k_pdata.macaddr = athxk_eeprom_mac;
328 + ltq_pci_plat_dev_init = ath5k_pci_plat_dev_init;
330 + dev_info(&pdev->dev, "loaded ath5k eeprom\n");
335 +static struct of_device_id ath5k_eeprom_ids[] = {
336 + { .compatible = "ath5k,eeprom" },
340 +static struct platform_driver ath5k_eeprom_driver = {
342 + .name = "ath5k,eeprom",
343 + .owner = THIS_MODULE,
344 + .of_match_table = of_match_ptr(ath5k_eeprom_ids),
348 +static int __init of_ath5k_eeprom_init(void)
350 + return platform_driver_probe(&ath5k_eeprom_driver, of_ath5k_eeprom_probe);
352 +device_initcall(of_ath5k_eeprom_init);
354 +++ b/arch/mips/lantiq/xway/eth_mac.c
357 + * Copyright (C) 2012 John Crispin <blogic@openwrt.org>
359 + * This program is free software; you can redistribute it and/or modify it
360 + * under the terms of the GNU General Public License version 2 as published
361 + * by the Free Software Foundation.
364 +#include <linux/init.h>
365 +#include <linux/module.h>
366 +#include <linux/of_platform.h>
367 +#include <linux/if_ether.h>
369 +static u8 eth_mac[6];
370 +static int eth_mac_set;
372 +const u8* ltq_get_eth_mac(void)
377 +static int __init setup_ethaddr(char *str)
379 + eth_mac_set = mac_pton(str, eth_mac);
380 + return !eth_mac_set;
382 +__setup("ethaddr=", setup_ethaddr);
384 +int __init of_eth_mac_probe(struct platform_device *pdev)
386 + struct device_node *np = pdev->dev.of_node;
387 + struct resource *mac_res;
392 + dev_err(&pdev->dev, "mac was already set by bootloader\n");
395 + mac_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
398 + dev_err(&pdev->dev, "failed to load mac\n");
401 + if (resource_size(mac_res) != 6) {
402 + dev_err(&pdev->dev, "mac has an invalid size\n");
405 + mac = ioremap(mac_res->start, resource_size(mac_res));
406 + memcpy_fromio(eth_mac, mac, 6);
408 + if (!of_property_read_u32(np, "mac-increment", &mac_inc))
409 + eth_mac[5] += mac_inc;
414 +static struct of_device_id eth_mac_ids[] = {
415 + { .compatible = "lantiq,eth-mac" },
419 +static struct platform_driver eth_mac_driver = {
421 + .name = "lantiq,eth-mac",
422 + .owner = THIS_MODULE,
423 + .of_match_table = of_match_ptr(eth_mac_ids),
427 +static int __init of_eth_mac_init(void)
429 + return platform_driver_probe(ð_mac_driver, of_eth_mac_probe);
431 +device_initcall(of_eth_mac_init);
433 +++ b/arch/mips/lantiq/xway/pci-ath-fixup.c
436 + * Atheros AP94 reference board PCI initialization
438 + * Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org>
440 + * This program is free software; you can redistribute it and/or modify it
441 + * under the terms of the GNU General Public License version 2 as published
442 + * by the Free Software Foundation.
445 +#include <linux/pci.h>
446 +#include <linux/init.h>
447 +#include <linux/delay.h>
448 +#include <lantiq_soc.h>
450 +#define LTQ_PCI_MEM_BASE 0x18000000
457 +static int ath_num_fixups;
458 +static struct ath_fixup ath_fixups[2];
460 +static void ath_pci_fixup(struct pci_dev *dev)
463 + u16 *cal_data = NULL;
469 + for (i = 0; i < ath_num_fixups; i++) {
470 + if (ath_fixups[i].cal_data == NULL)
473 + if (ath_fixups[i].slot != PCI_SLOT(dev->devfn))
476 + cal_data = ath_fixups[i].cal_data;
480 + if (cal_data == NULL)
483 + if (*cal_data != 0xa55a) {
484 + pr_err("pci %s: invalid calibration data\n", pci_name(dev));
488 + pr_info("pci %s: fixup device configuration\n", pci_name(dev));
490 + mem = ioremap(LTQ_PCI_MEM_BASE, 0x10000);
492 + pr_err("pci %s: ioremap error\n", pci_name(dev));
496 + pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &bar0);
497 + pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, LTQ_PCI_MEM_BASE);
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);
502 + /* set pointer to first reg address */
504 + while (*cal_data != 0xffff) {
508 + val |= (*cal_data++) << 16;
510 + ltq_w32(swab32(val), mem + reg);
514 + pci_read_config_dword(dev, PCI_VENDOR_ID, &val);
515 + dev->vendor = val & 0xffff;
516 + dev->device = (val >> 16) & 0xffff;
518 + pci_read_config_dword(dev, PCI_CLASS_REVISION, &val);
519 + dev->revision = val & 0xff;
520 + dev->class = val >> 8; /* upper 3 bytes */
522 + pr_info("pci %s: fixup info: [%04x:%04x] revision %02x class %#08x\n",
523 + pci_name(dev), dev->vendor, dev->device, dev->revision, dev->class);
525 + pci_read_config_word(dev, PCI_COMMAND, &cmd);
526 + cmd &= ~(PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY);
527 + pci_write_config_word(dev, PCI_COMMAND, cmd);
529 + pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, bar0);
533 +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ATHEROS, PCI_ANY_ID, ath_pci_fixup);
535 +void __init ltq_pci_ath_fixup(unsigned slot, u16 *cal_data)
537 + if (ath_num_fixups >= ARRAY_SIZE(ath_fixups))
540 + ath_fixups[ath_num_fixups].slot = slot;
541 + ath_fixups[ath_num_fixups].cal_data = cal_data;
545 +++ b/arch/mips/lantiq/xway/rt_eep.c
548 + * Copyright (C) 2011 John Crispin <blogic@openwrt.org>
550 + * This program is free software; you can redistribute it and/or modify it
551 + * under the terms of the GNU General Public License version 2 as published
552 + * by the Free Software Foundation.
555 +#include <linux/init.h>
556 +#include <linux/module.h>
557 +#include <linux/pci.h>
558 +#include <linux/platform_device.h>
559 +#include <linux/rt2x00_platform.h>
561 +extern int (*ltq_pci_plat_dev_init)(struct pci_dev *dev);
562 +static struct rt2x00_platform_data rt2x00_pdata;
564 +static int rt2x00_pci_plat_dev_init(struct pci_dev *dev)
566 + dev->dev.platform_data = &rt2x00_pdata;
570 +int __init of_ralink_eeprom_probe(struct platform_device *pdev)
572 + struct device_node *np = pdev->dev.of_node;
573 + const char *eeprom;
575 + if (of_property_read_string(np, "ralink,eeprom", &eeprom)) {
576 + dev_err(&pdev->dev, "failed to load eeprom filename\n");
580 + rt2x00_pdata.eeprom_file_name = kstrdup(eeprom, GFP_KERNEL);
581 +// rt2x00_pdata.mac_address = mac;
582 + ltq_pci_plat_dev_init = rt2x00_pci_plat_dev_init;
584 + dev_info(&pdev->dev, "using %s as eeprom\n", eeprom);
589 +static struct of_device_id ralink_eeprom_ids[] = {
590 + { .compatible = "ralink,eeprom" },
594 +static struct platform_driver ralink_eeprom_driver = {
596 + .name = "ralink,eeprom",
597 + .owner = THIS_MODULE,
598 + .of_match_table = of_match_ptr(ralink_eeprom_ids),
602 +static int __init of_ralink_eeprom_init(void)
604 + return platform_driver_probe(&ralink_eeprom_driver, of_ralink_eeprom_probe);
606 +device_initcall(of_ralink_eeprom_init);
607 --- a/drivers/net/ethernet/lantiq_etop.c
608 +++ b/drivers/net/ethernet/lantiq_etop.c
609 @@ -161,7 +161,7 @@ struct ltq_etop_priv {
618 @@ -840,7 +840,11 @@ ltq_etop_init(struct net_device *dev)
622 - memcpy(&mac, &priv->pldata->mac, sizeof(struct sockaddr));
624 + memcpy(&mac.sa_data, priv->mac, ETH_ALEN);
626 + memcpy(&mac.sa_data, ltq_get_eth_mac(), ETH_ALEN);
628 if (!is_valid_ether_addr(mac.sa_data)) {
629 pr_warn("etop: invalid MAC, using random\n");
630 eth_random_addr(mac.sa_data);