1 From 0c9b05716ac0e597ae0f81a96ff68e54716decc9 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 37/40] 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 | 206 ++++++++++++++++++++
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 drivers/net/ethernet/lantiq_etop.c | 10 +-
15 8 files changed, 469 insertions(+), 4 deletions(-)
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>
60 + * This program is free software; you can redistribute it and/or modify it
61 + * under the terms of the GNU General Public License version 2 as published
62 + * by the Free Software Foundation.
65 +#include <linux/init.h>
66 +#include <linux/module.h>
67 +#include <linux/platform_device.h>
68 +#include <linux/etherdevice.h>
69 +#include <linux/ath5k_platform.h>
70 +#include <linux/ath9k_platform.h>
71 +#include <linux/pci.h>
72 +#include <linux/err.h>
73 +#include <linux/mtd/mtd.h>
74 +#include <pci-ath-fixup.h>
75 +#include <lantiq_soc.h>
77 +extern int (*ltq_pci_plat_dev_init)(struct pci_dev *dev);
78 +struct ath5k_platform_data ath5k_pdata;
79 +struct ath9k_platform_data ath9k_pdata = {
82 +static u16 ath5k_eeprom_data[ATH5K_PLAT_EEP_MAX_WORDS];
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 + u16 *eepdata, sum, el;
100 + struct mtd_info *the_mtd;
101 + size_t flash_readlen;
102 + const __be32 *list;
106 + if ((list = of_get_property(np, "ath,eep-flash", &i)) && i == 2 *
107 + sizeof(*list) && (phandle = be32_to_cpup(list++)) &&
108 + (mtd_np = of_find_node_by_phandle(phandle)) && ((part =
109 + of_get_property(mtd_np, "label", NULL)) || (part =
110 + mtd_np->name)) && (the_mtd = get_mtd_device_nm(part))
111 + != ERR_PTR(-ENODEV)) {
112 + i = mtd_read(the_mtd, be32_to_cpup(list),
113 + sizeof(ath9k_pdata.eeprom_data), &flash_readlen,
114 + (void *) ath9k_pdata.eeprom_data);
115 + put_mtd_device(the_mtd);
116 + if ((sizeof(ath9k_pdata.eeprom_data) != flash_readlen) || i) {
117 + dev_err(&pdev->dev, "failed to load eeprom from mtd\n");
121 + eep_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
122 + mac_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
125 + dev_err(&pdev->dev, "failed to load eeprom address\n");
128 + if (resource_size(eep_res) != ATH9K_PLAT_EEP_MAX_WORDS) {
129 + dev_err(&pdev->dev, "eeprom has an invalid size\n");
133 + eep = ioremap(eep_res->start, resource_size(eep_res));
134 + memcpy_fromio(ath9k_pdata.eeprom_data, eep,
135 + ATH9K_PLAT_EEP_MAX_WORDS);
138 + if (of_find_property(np, "ath,eep-swap", NULL)) {
139 + ath9k_pdata.endian_check = true;
140 + dev_info(&pdev->dev, "endian check enabled.\n");
141 + for (i = 0; i < ATH9K_PLAT_EEP_MAX_WORDS; i++)
142 + ath9k_pdata.eeprom_data[i] =
143 + swab16(ath9k_pdata.eeprom_data[i]);
146 + if (of_find_property(np, "ath,eep-csum", NULL)) {
147 + sum = ath9k_pdata.eeprom_data[0x200>>1];
148 + el = sum / sizeof(u16) - 2; /* skip length and (old) checksum */
149 + eepdata = (u16 *) (&ath9k_pdata.eeprom_data[0x204>>1]); /* after checksum */
150 + for (i = 0; i < el; i++)
153 + ath9k_pdata.eeprom_data[0x202>>1] = sum;
155 + dev_info(&pdev->dev, "checksum fixed.\n");
158 + if (!of_property_read_u32(np, "ath,mac-offset", &mac_offset)) {
159 + memcpy_fromio(athxk_eeprom_mac, (void*) ath9k_pdata.eeprom_data, 6);
160 + } else if (mac_res) {
161 + if (resource_size(mac_res) != 6) {
162 + dev_err(&pdev->dev, "mac has an invalid size\n");
165 + mac = ioremap(mac_res->start, resource_size(mac_res));
166 + memcpy_fromio(athxk_eeprom_mac, mac, 6);
167 + } else if (ltq_get_eth_mac())
168 + memcpy(athxk_eeprom_mac, ltq_get_eth_mac(), 6);
170 + dev_warn(&pdev->dev, "using random mac\n");
171 + random_ether_addr(athxk_eeprom_mac);
174 + if (!of_property_read_u32(np, "ath,mac-increment", &mac_inc))
175 + athxk_eeprom_mac[5] += mac_inc;
177 + ath9k_pdata.macaddr = athxk_eeprom_mac;
178 + ltq_pci_plat_dev_init = ath9k_pci_plat_dev_init;
180 + if (!of_property_read_u32(np, "ath,pci-slot", &pci_slot)) {
181 + ltq_pci_ath_fixup(pci_slot, ath9k_pdata.eeprom_data);
183 + dev_info(&pdev->dev, "pci slot: %u\n", pci_slot);
186 + dev_info(&pdev->dev, "loaded ath9k eeprom\n");
191 +static struct of_device_id ath9k_eeprom_ids[] = {
192 + { .compatible = "ath9k,eeprom" },
196 +static struct platform_driver ath9k_eeprom_driver = {
198 + .name = "ath9k,eeprom",
199 + .owner = THIS_MODULE,
200 + .of_match_table = of_match_ptr(ath9k_eeprom_ids),
204 +static int __init of_ath9k_eeprom_init(void)
206 + return platform_driver_probe(&ath9k_eeprom_driver, of_ath9k_eeprom_probe);
208 +late_initcall(of_ath9k_eeprom_init);
211 +static int ath5k_pci_plat_dev_init(struct pci_dev *dev)
213 + dev->dev.platform_data = &ath5k_pdata;
217 +int __init of_ath5k_eeprom_probe(struct platform_device *pdev)
219 + struct device_node *np = pdev->dev.of_node, *mtd_np;
220 + struct resource *eep_res, *mac_res = NULL;
221 + void __iomem *eep, *mac;
225 + struct mtd_info *the_mtd;
226 + size_t flash_readlen;
227 + const __be32 *list;
231 + if ((list = of_get_property(np, "ath,eep-flash", &i)) && i == 2 *
232 + sizeof(*list) && (phandle = be32_to_cpup(list++)) &&
233 + (mtd_np = of_find_node_by_phandle(phandle)) && ((part =
234 + of_get_property(mtd_np, "label", NULL)) || (part =
235 + mtd_np->name)) && (the_mtd = get_mtd_device_nm(part))
236 + != ERR_PTR(-ENODEV)) {
237 + i = mtd_read(the_mtd, be32_to_cpup(list),
238 + sizeof(ath5k_eeprom_data), &flash_readlen,
239 + (void *) ath5k_eeprom_data);
240 + put_mtd_device(the_mtd);
241 + if ((sizeof(ath5k_eeprom_data) != flash_readlen) || i) {
242 + dev_err(&pdev->dev, "failed to load eeprom from mtd\n");
246 + eep_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
247 + mac_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
250 + dev_err(&pdev->dev, "failed to load eeprom address\n");
253 + if (resource_size(eep_res) != ATH5K_PLAT_EEP_MAX_WORDS) {
254 + dev_err(&pdev->dev, "eeprom has an invalid size\n");
258 + eep = ioremap(eep_res->start, resource_size(eep_res));
259 + memcpy_fromio(ath5k_eeprom_data, eep, ATH5K_PLAT_EEP_MAX_WORDS);
262 + if (of_find_property(np, "ath,eep-swap", NULL))
263 + for (i = 0; i < ATH5K_PLAT_EEP_MAX_WORDS; i++)
264 + ath5k_eeprom_data[i] = swab16(ath5k_eeprom_data[i]);
266 + if (!of_property_read_u32(np, "ath,mac-offset", &mac_offset)) {
267 + memcpy_fromio(athxk_eeprom_mac, (void*) ath5k_eeprom_data, 6);
268 + } else if (mac_res) {
269 + if (resource_size(mac_res) != 6) {
270 + dev_err(&pdev->dev, "mac has an invalid size\n");
273 + mac = ioremap(mac_res->start, resource_size(mac_res));
274 + memcpy_fromio(athxk_eeprom_mac, mac, 6);
275 + } else if (ltq_get_eth_mac())
276 + memcpy(athxk_eeprom_mac, ltq_get_eth_mac(), 6);
278 + dev_warn(&pdev->dev, "using random mac\n");
279 + random_ether_addr(athxk_eeprom_mac);
282 + if (!of_property_read_u32(np, "ath,mac-increment", &mac_inc))
283 + athxk_eeprom_mac[5] += mac_inc;
285 + ath5k_pdata.eeprom_data = ath5k_eeprom_data;
286 + ath5k_pdata.macaddr = athxk_eeprom_mac;
287 + ltq_pci_plat_dev_init = ath5k_pci_plat_dev_init;
289 + dev_info(&pdev->dev, "loaded ath5k eeprom\n");
294 +static struct of_device_id ath5k_eeprom_ids[] = {
295 + { .compatible = "ath5k,eeprom" },
299 +static struct platform_driver ath5k_eeprom_driver = {
301 + .name = "ath5k,eeprom",
302 + .owner = THIS_MODULE,
303 + .of_match_table = of_match_ptr(ath5k_eeprom_ids),
307 +static int __init of_ath5k_eeprom_init(void)
309 + return platform_driver_probe(&ath5k_eeprom_driver, of_ath5k_eeprom_probe);
311 +late_initcall(of_ath5k_eeprom_init);
313 +++ b/arch/mips/lantiq/xway/eth_mac.c
316 + * Copyright (C) 2012 John Crispin <blogic@openwrt.org>
318 + * This program is free software; you can redistribute it and/or modify it
319 + * under the terms of the GNU General Public License version 2 as published
320 + * by the Free Software Foundation.
323 +#include <linux/init.h>
324 +#include <linux/module.h>
325 +#include <linux/of_platform.h>
326 +#include <linux/if_ether.h>
328 +static u8 eth_mac[6];
329 +static int eth_mac_set;
331 +const u8* ltq_get_eth_mac(void)
336 +static int __init setup_ethaddr(char *str)
338 + eth_mac_set = mac_pton(str, eth_mac);
339 + return !eth_mac_set;
341 +__setup("ethaddr=", setup_ethaddr);
343 +int __init of_eth_mac_probe(struct platform_device *pdev)
345 + struct device_node *np = pdev->dev.of_node;
346 + struct resource *mac_res;
351 + dev_err(&pdev->dev, "mac was already set by bootloader\n");
354 + mac_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
357 + dev_err(&pdev->dev, "failed to load mac\n");
360 + if (resource_size(mac_res) != 6) {
361 + dev_err(&pdev->dev, "mac has an invalid size\n");
364 + mac = ioremap(mac_res->start, resource_size(mac_res));
365 + memcpy_fromio(eth_mac, mac, 6);
367 + if (!of_property_read_u32(np, "mac-increment", &mac_inc))
368 + eth_mac[5] += mac_inc;
373 +static struct of_device_id eth_mac_ids[] = {
374 + { .compatible = "lantiq,eth-mac" },
378 +static struct platform_driver eth_mac_driver = {
380 + .name = "lantiq,eth-mac",
381 + .owner = THIS_MODULE,
382 + .of_match_table = of_match_ptr(eth_mac_ids),
386 +static int __init of_eth_mac_init(void)
388 + return platform_driver_probe(ð_mac_driver, of_eth_mac_probe);
390 +device_initcall(of_eth_mac_init);
392 +++ b/arch/mips/lantiq/xway/pci-ath-fixup.c
395 + * Atheros AP94 reference board PCI initialization
397 + * Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org>
399 + * This program is free software; you can redistribute it and/or modify it
400 + * under the terms of the GNU General Public License version 2 as published
401 + * by the Free Software Foundation.
404 +#include <linux/pci.h>
405 +#include <linux/init.h>
406 +#include <linux/delay.h>
407 +#include <lantiq_soc.h>
409 +#define LTQ_PCI_MEM_BASE 0x18000000
416 +static int ath_num_fixups;
417 +static struct ath_fixup ath_fixups[2];
419 +static void ath_pci_fixup(struct pci_dev *dev)
422 + u16 *cal_data = NULL;
428 + for (i = 0; i < ath_num_fixups; i++) {
429 + if (ath_fixups[i].cal_data == NULL)
432 + if (ath_fixups[i].slot != PCI_SLOT(dev->devfn))
435 + cal_data = ath_fixups[i].cal_data;
439 + if (cal_data == NULL)
442 + if (*cal_data != 0xa55a) {
443 + pr_err("pci %s: invalid calibration data\n", pci_name(dev));
447 + pr_info("pci %s: fixup device configuration\n", pci_name(dev));
449 + mem = ioremap(LTQ_PCI_MEM_BASE, 0x10000);
451 + pr_err("pci %s: ioremap error\n", pci_name(dev));
455 + pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &bar0);
456 + pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, LTQ_PCI_MEM_BASE);
457 + pci_read_config_word(dev, PCI_COMMAND, &cmd);
458 + cmd |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
459 + pci_write_config_word(dev, PCI_COMMAND, cmd);
461 + /* set pointer to first reg address */
463 + while (*cal_data != 0xffff) {
467 + val |= (*cal_data++) << 16;
469 + ltq_w32(swab32(val), mem + reg);
473 + pci_read_config_dword(dev, PCI_VENDOR_ID, &val);
474 + dev->vendor = val & 0xffff;
475 + dev->device = (val >> 16) & 0xffff;
477 + pci_read_config_dword(dev, PCI_CLASS_REVISION, &val);
478 + dev->revision = val & 0xff;
479 + dev->class = val >> 8; /* upper 3 bytes */
481 + pr_info("pci %s: fixup info: [%04x:%04x] revision %02x class %#08x\n",
482 + pci_name(dev), dev->vendor, dev->device, dev->revision, dev->class);
484 + pci_read_config_word(dev, PCI_COMMAND, &cmd);
485 + cmd &= ~(PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY);
486 + pci_write_config_word(dev, PCI_COMMAND, cmd);
488 + pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, bar0);
492 +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ATHEROS, PCI_ANY_ID, ath_pci_fixup);
494 +void __init ltq_pci_ath_fixup(unsigned slot, u16 *cal_data)
496 + if (ath_num_fixups >= ARRAY_SIZE(ath_fixups))
499 + ath_fixups[ath_num_fixups].slot = slot;
500 + ath_fixups[ath_num_fixups].cal_data = cal_data;
504 +++ b/arch/mips/lantiq/xway/rt_eep.c
507 + * Copyright (C) 2011 John Crispin <blogic@openwrt.org>
509 + * This program is free software; you can redistribute it and/or modify it
510 + * under the terms of the GNU General Public License version 2 as published
511 + * by the Free Software Foundation.
514 +#include <linux/init.h>
515 +#include <linux/module.h>
516 +#include <linux/pci.h>
517 +#include <linux/platform_device.h>
518 +#include <linux/rt2x00_platform.h>
520 +extern int (*ltq_pci_plat_dev_init)(struct pci_dev *dev);
521 +static struct rt2x00_platform_data rt2x00_pdata;
523 +static int rt2x00_pci_plat_dev_init(struct pci_dev *dev)
525 + dev->dev.platform_data = &rt2x00_pdata;
529 +int __init of_ralink_eeprom_probe(struct platform_device *pdev)
531 + struct device_node *np = pdev->dev.of_node;
532 + const char *eeprom;
534 + if (of_property_read_string(np, "ralink,eeprom", &eeprom)) {
535 + dev_err(&pdev->dev, "failed to load eeprom filename\n");
539 + rt2x00_pdata.eeprom_file_name = kstrdup(eeprom, GFP_KERNEL);
540 +// rt2x00_pdata.mac_address = mac;
541 + ltq_pci_plat_dev_init = rt2x00_pci_plat_dev_init;
543 + dev_info(&pdev->dev, "using %s as eeprom\n", eeprom);
548 +static struct of_device_id ralink_eeprom_ids[] = {
549 + { .compatible = "ralink,eeprom" },
553 +static struct platform_driver ralink_eeprom_driver = {
555 + .name = "ralink,eeprom",
556 + .owner = THIS_MODULE,
557 + .of_match_table = of_match_ptr(ralink_eeprom_ids),
561 +static int __init of_ralink_eeprom_init(void)
563 + return platform_driver_probe(&ralink_eeprom_driver, of_ralink_eeprom_probe);
565 +device_initcall(of_ralink_eeprom_init);
566 --- a/drivers/net/ethernet/lantiq_etop.c
567 +++ b/drivers/net/ethernet/lantiq_etop.c
568 @@ -826,7 +826,8 @@ ltq_etop_init(struct net_device *dev)
570 ltq_etop_change_mtu(dev, 1500);
572 - memcpy(&mac.sa_data, priv->mac, ETH_ALEN);
574 + memcpy(&mac.sa_data, priv->mac, ETH_ALEN);
575 if (!is_valid_ether_addr(mac.sa_data)) {
576 pr_warn("etop: invalid MAC, using random\n");
577 random_ether_addr(mac.sa_data);
578 @@ -885,8 +886,7 @@ static const struct net_device_ops ltq_e
579 .ndo_tx_timeout = ltq_etop_tx_timeout,
582 -static int __devinit
583 -ltq_etop_probe(struct platform_device *pdev)
584 +static int ltq_etop_probe(struct platform_device *pdev)
586 struct net_device *dev;
587 struct ltq_etop_priv *priv;
588 @@ -950,7 +950,9 @@ ltq_etop_probe(struct platform_device *p
589 priv->tx_irq = irqres[0].start;
590 priv->rx_irq = irqres[1].start;
591 priv->mii_mode = of_get_phy_mode(pdev->dev.of_node);
592 - priv->mac = of_get_mac_address(pdev->dev.of_node);
593 + priv->mac = ltq_get_eth_mac();
595 + priv->mac = of_get_mac_address(pdev->dev.of_node);
597 priv->clk_ppe = clk_get(&pdev->dev, NULL);
598 if (IS_ERR(priv->clk_ppe))
599 --- a/arch/mips/pci/pci-lantiq.c
600 +++ b/arch/mips/pci/pci-lantiq.c
601 @@ -260,4 +260,4 @@ int __init pcibios_init(void)
605 -arch_initcall(pcibios_init);
606 +late_initcall(pcibios_init);