7233e52fdbd8295c5fb02520e49bb98bfc6948da
[openwrt.git] / target / linux / lantiq / patches-3.7 / 0302-wifi-eep.patch
1 --- a/arch/mips/lantiq/xway/Makefile
2 +++ b/arch/mips/lantiq/xway/Makefile
3 @@ -1,3 +1,6 @@
4  obj-y := prom.o sysctrl.o clk.o reset.o dma.o timer.o dcdc.o
5  
6 +obj-y += eth_mac.o
7 +obj-$(CONFIG_PCI) += ath_eep.o rt_eep.o pci-ath-fixup.o
8 +
9  obj-$(CONFIG_XRX200_PHY_FW) += xrx200_phy_fw.o
10 --- /dev/null
11 +++ b/arch/mips/lantiq/xway/ath_eep.c
12 @@ -0,0 +1,206 @@
13 +/*
14 + *  Copyright (C) 2011 Luca Olivetti <luca@ventoso.org>
15 + *  Copyright (C) 2011 John Crispin <blogic@openwrt.org>
16 + *  Copyright (C) 2011 Andrej Vlašić <andrej.vlasic0@gmail.com>
17 + *  Copyright (C) 2013 Álvaro Fernández Rojas <noltari@gmail.com>
18 + *
19 + *  This program is free software; you can redistribute it and/or modify it
20 + *  under the terms of the GNU General Public License version 2 as published
21 + *  by the Free Software Foundation.
22 + */
23 +
24 +#include <linux/init.h>
25 +#include <linux/module.h>
26 +#include <linux/platform_device.h>
27 +#include <linux/etherdevice.h>
28 +#include <linux/ath5k_platform.h>
29 +#include <linux/ath9k_platform.h>
30 +#include <linux/pci.h>
31 +#include <pci-ath-fixup.h>
32 +
33 +extern int (*ltq_pci_plat_dev_init)(struct pci_dev *dev);
34 +struct ath5k_platform_data ath5k_pdata;
35 +struct ath9k_platform_data ath9k_pdata = {
36 +       .led_pin = -1,
37 +};
38 +static u16 ath5k_eeprom_data[ATH5K_PLAT_EEP_MAX_WORDS];
39 +static u8 athxk_eeprom_mac[6];
40 +
41 +static int ath9k_pci_plat_dev_init(struct pci_dev *dev)
42 +{
43 +       dev->dev.platform_data = &ath9k_pdata;
44 +       return 0;
45 +}
46 +
47 +int __init of_ath9k_eeprom_probe(struct platform_device *pdev)
48 +{
49 +       struct device_node *np = pdev->dev.of_node;
50 +       struct resource *eep_res, *mac_res;
51 +       void __iomem *eep, *mac;
52 +       int mac_offset;
53 +       u32 mac_inc = 0, pci_slot = 0;
54 +       int i;
55 +       u16 *eepdata, sum, el;
56 +
57 +       eep_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
58 +       mac_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
59 +
60 +       if (!eep_res) {
61 +               dev_err(&pdev->dev, "failed to load eeprom address\n");
62 +               return -ENODEV;
63 +       }
64 +       if (resource_size(eep_res) != ATH9K_PLAT_EEP_MAX_WORDS) {
65 +               dev_err(&pdev->dev, "eeprom has an invalid size\n");
66 +               return -EINVAL;
67 +       }
68 +
69 +       eep = ioremap(eep_res->start, resource_size(eep_res));
70 +       memcpy_fromio(ath9k_pdata.eeprom_data, eep, ATH9K_PLAT_EEP_MAX_WORDS);
71 +
72 +       if (of_find_property(np, "ath,eep-swap", NULL)) {
73 +               ath9k_pdata.endian_check = true;
74 +
75 +               dev_info(&pdev->dev, "endian check enabled.\n");
76 +       }
77 +
78 +       if (of_find_property(np, "ath,eep-csum", NULL)) {
79 +               sum = ath9k_pdata.eeprom_data[0x200>>1];
80 +               el = sum / sizeof(u16) - 2;  /* skip length and (old) checksum */
81 +               eepdata = (u16 *) (&ath9k_pdata.eeprom_data[0x204>>1]); /* after checksum */
82 +               for (i = 0; i < el; i++)
83 +                       sum ^= *eepdata++;
84 +               sum ^= 0xffff;
85 +               ath9k_pdata.eeprom_data[0x202>>1] = sum;
86 +
87 +               dev_info(&pdev->dev, "checksum fixed.\n");
88 +       }
89 +
90 +       if (!of_property_read_u32(np, "ath,mac-offset", &mac_offset)) {
91 +               memcpy_fromio(athxk_eeprom_mac, (void*) ath9k_pdata.eeprom_data, 6);
92 +       } else if (mac_res) {
93 +               if (resource_size(mac_res) != 6) {
94 +                       dev_err(&pdev->dev, "mac has an invalid size\n");
95 +                       return -EINVAL;
96 +               }
97 +               mac = ioremap(mac_res->start, resource_size(mac_res));
98 +               memcpy_fromio(athxk_eeprom_mac, mac, 6);
99 +       } else {
100 +               dev_warn(&pdev->dev, "using random mac\n");
101 +               random_ether_addr(athxk_eeprom_mac);
102 +       }
103 +
104 +       if (!of_property_read_u32(np, "ath,mac-increment", &mac_inc))
105 +               athxk_eeprom_mac[5] += mac_inc;
106 +
107 +       ath9k_pdata.macaddr = athxk_eeprom_mac;
108 +       ltq_pci_plat_dev_init = ath9k_pci_plat_dev_init;
109 +
110 +       if (!of_property_read_u32(np, "ath,pci-slot", &pci_slot)) {
111 +               ltq_pci_ath_fixup(pci_slot, ath9k_pdata.eeprom_data);
112 +
113 +               dev_info(&pdev->dev, "pci slot: %u\n", pci_slot);
114 +       }
115 +
116 +       dev_info(&pdev->dev, "loaded ath9k eeprom\n");
117 +
118 +       return 0;
119 +}
120 +
121 +static struct of_device_id ath9k_eeprom_ids[] = {
122 +       { .compatible = "ath9k,eeprom" },
123 +       { }
124 +};
125 +
126 +static struct platform_driver ath9k_eeprom_driver = {
127 +       .driver         = {
128 +               .name           = "ath9k,eeprom",
129 +               .owner  = THIS_MODULE,
130 +               .of_match_table = of_match_ptr(ath9k_eeprom_ids),
131 +       },
132 +};
133 +
134 +static int __init of_ath9k_eeprom_init(void)
135 +{
136 +       return platform_driver_probe(&ath9k_eeprom_driver, of_ath9k_eeprom_probe);
137 +}
138 +arch_initcall(of_ath9k_eeprom_init);
139 +
140 +
141 +static int ath5k_pci_plat_dev_init(struct pci_dev *dev)
142 +{
143 +       dev->dev.platform_data = &ath5k_pdata;
144 +       return 0;
145 +}
146 +
147 +int __init of_ath5k_eeprom_probe(struct platform_device *pdev)
148 +{
149 +       struct device_node *np = pdev->dev.of_node;
150 +       struct resource *eep_res, *mac_res;
151 +       void __iomem *eep, *mac;
152 +       int mac_offset;
153 +       u32 mac_inc = 0;
154 +       int i;
155 +
156 +       eep_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
157 +       mac_res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
158 +
159 +       if (!eep_res) {
160 +               dev_err(&pdev->dev, "failed to load eeprom address\n");
161 +               return -ENODEV;
162 +       }
163 +       if (resource_size(eep_res) != ATH5K_PLAT_EEP_MAX_WORDS) {
164 +               dev_err(&pdev->dev, "eeprom has an invalid size\n");
165 +               return -EINVAL;
166 +       }
167 +
168 +       eep = ioremap(eep_res->start, resource_size(eep_res));
169 +       memcpy_fromio(ath5k_eeprom_data, eep, ATH5K_PLAT_EEP_MAX_WORDS);
170 +
171 +       if (of_find_property(np, "ath,eep-swap", NULL))
172 +               for (i = 0; i < (ATH5K_PLAT_EEP_MAX_WORDS >> 1); i++)
173 +                               ath5k_eeprom_data[i] = swab16(ath5k_eeprom_data[i]);
174 +
175 +       if (!of_property_read_u32(np, "ath,mac-offset", &mac_offset)) {
176 +               memcpy_fromio(athxk_eeprom_mac, (void*) ath5k_eeprom_data, 6);
177 +       } else if (mac_res) {
178 +               if (resource_size(mac_res) != 6) {
179 +                       dev_err(&pdev->dev, "mac has an invalid size\n");
180 +                       return -EINVAL;
181 +               }
182 +               mac = ioremap(mac_res->start, resource_size(mac_res));
183 +               memcpy_fromio(athxk_eeprom_mac, mac, 6);
184 +       } else {
185 +               dev_warn(&pdev->dev, "using random mac\n");
186 +               random_ether_addr(athxk_eeprom_mac);
187 +       }
188 +
189 +       if (!of_property_read_u32(np, "ath,mac-increment", &mac_inc))
190 +               athxk_eeprom_mac[5] += mac_inc;
191 +
192 +       ath5k_pdata.eeprom_data = ath5k_eeprom_data;
193 +       ath5k_pdata.macaddr = athxk_eeprom_mac;
194 +       ltq_pci_plat_dev_init = ath5k_pci_plat_dev_init;
195 +
196 +       dev_info(&pdev->dev, "loaded ath5k eeprom\n");
197 +
198 +       return 0;
199 +}
200 +
201 +static struct of_device_id ath5k_eeprom_ids[] = {
202 +       { .compatible = "ath5k,eeprom" },
203 +       { }
204 +};
205 +
206 +static struct platform_driver ath5k_eeprom_driver = {
207 +       .driver         = {
208 +               .name           = "ath5k,eeprom",
209 +               .owner  = THIS_MODULE,
210 +               .of_match_table = of_match_ptr(ath5k_eeprom_ids),
211 +       },
212 +};
213 +
214 +static int __init of_ath5k_eeprom_init(void)
215 +{
216 +       return platform_driver_probe(&ath5k_eeprom_driver, of_ath5k_eeprom_probe);
217 +}
218 +device_initcall(of_ath5k_eeprom_init);
219 --- a/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
220 +++ b/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
221 @@ -90,5 +90,8 @@ int xrx200_gphy_boot(struct device *dev,
222  extern void ltq_pmu_enable(unsigned int module);
223  extern void ltq_pmu_disable(unsigned int module);
224  
225 +/* allow the ethernet driver to load a flash mapped mac addr */
226 +const u8* ltq_get_eth_mac(void);
227 +
228  #endif /* CONFIG_SOC_TYPE_XWAY */
229  #endif /* _LTQ_XWAY_H__ */
230 --- /dev/null
231 +++ b/arch/mips/lantiq/xway/eth_mac.c
232 @@ -0,0 +1,76 @@
233 +/*
234 + *  Copyright (C) 2012 John Crispin <blogic@openwrt.org>
235 + *
236 + *  This program is free software; you can redistribute it and/or modify it
237 + *  under the terms of the GNU General Public License version 2 as published
238 + *  by the Free Software Foundation.
239 + */
240 +
241 +#include <linux/init.h>
242 +#include <linux/module.h>
243 +#include <linux/of_platform.h>
244 +#include <linux/if_ether.h>
245 +
246 +static u8 eth_mac[6];
247 +static int eth_mac_set;
248 +
249 +const u8* ltq_get_eth_mac(void)
250 +{
251 +       return eth_mac;
252 +}
253 +
254 +static int __init setup_ethaddr(char *str)
255 +{
256 +       eth_mac_set = mac_pton(str, eth_mac);
257 +       return !eth_mac_set;
258 +}
259 +__setup("ethaddr=", setup_ethaddr);
260 +
261 +int __init of_eth_mac_probe(struct platform_device *pdev)
262 +{
263 +       struct device_node *np = pdev->dev.of_node;
264 +       struct resource *mac_res;
265 +       void __iomem *mac;
266 +       u32 mac_inc = 0;
267 +
268 +       if (eth_mac_set) {
269 +               dev_err(&pdev->dev, "mac was already set by bootloader\n");
270 +               return -EINVAL;
271 +       }
272 +       mac_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
273 +
274 +       if (!mac_res) {
275 +               dev_err(&pdev->dev, "failed to load mac\n");
276 +               return -EINVAL;
277 +       }
278 +       if (resource_size(mac_res) != 6) {
279 +               dev_err(&pdev->dev, "mac has an invalid size\n");
280 +               return -EINVAL;
281 +       }
282 +       mac = ioremap(mac_res->start, resource_size(mac_res));
283 +       memcpy_fromio(eth_mac, mac, 6);
284 +
285 +       if (!of_property_read_u32(np, "mac-increment", &mac_inc))
286 +               eth_mac[5] += mac_inc;
287 +
288 +       return 0;
289 +}
290 +
291 +static struct of_device_id eth_mac_ids[] = {
292 +       { .compatible = "lantiq,eth-mac" },
293 +       { /* sentinel */ }
294 +};
295 +
296 +static struct platform_driver eth_mac_driver = {
297 +       .driver         = {
298 +               .name           = "lantiq,eth-mac",
299 +               .owner  = THIS_MODULE,
300 +               .of_match_table = of_match_ptr(eth_mac_ids),
301 +       },
302 +};
303 +
304 +static int __init of_eth_mac_init(void)
305 +{
306 +       return platform_driver_probe(&eth_mac_driver, of_eth_mac_probe);
307 +}
308 +device_initcall(of_eth_mac_init);
309 --- a/drivers/net/ethernet/lantiq_etop.c
310 +++ b/drivers/net/ethernet/lantiq_etop.c
311 @@ -825,7 +825,8 @@ ltq_etop_init(struct net_device *dev)
312  
313         ltq_etop_change_mtu(dev, 1500);
314  
315 -       memcpy(&mac.sa_data, priv->mac, ETH_ALEN);
316 +       if (priv->mac)
317 +               memcpy(&mac.sa_data, priv->mac, ETH_ALEN);
318         if (!is_valid_ether_addr(mac.sa_data)) {
319                 pr_warn("etop: invalid MAC, using random\n");
320                 random_ether_addr(mac.sa_data);
321 @@ -949,7 +950,9 @@ ltq_etop_probe(struct platform_device *p
322         priv->tx_irq = irqres[0].start;
323         priv->rx_irq = irqres[1].start;
324         priv->mii_mode = of_get_phy_mode(pdev->dev.of_node);
325 -       priv->mac = of_get_mac_address(pdev->dev.of_node);
326 +       priv->mac = ltq_get_eth_mac();
327 +       if (!priv->mac)
328 +               priv->mac = of_get_mac_address(pdev->dev.of_node);
329  
330         priv->clk_ppe = clk_get(&pdev->dev, NULL);
331         if (IS_ERR(priv->clk_ppe))
332 --- /dev/null
333 +++ b/arch/mips/lantiq/xway/rt_eep.c
334 @@ -0,0 +1,60 @@
335 +/*
336 + *  Copyright (C) 2011 John Crispin <blogic@openwrt.org>
337 + *
338 + *  This program is free software; you can redistribute it and/or modify it
339 + *  under the terms of the GNU General Public License version 2 as published
340 + *  by the Free Software Foundation.
341 + */
342 +
343 +#include <linux/init.h>
344 +#include <linux/module.h>
345 +#include <linux/pci.h>
346 +#include <linux/platform_device.h>
347 +#include <linux/rt2x00_platform.h>
348 +
349 +extern int (*ltq_pci_plat_dev_init)(struct pci_dev *dev);
350 +static struct rt2x00_platform_data rt2x00_pdata;
351 +
352 +static int rt2x00_pci_plat_dev_init(struct pci_dev *dev)
353 +{
354 +       dev->dev.platform_data = &rt2x00_pdata;
355 +       return 0;
356 +}
357 +
358 +int __init of_ralink_eeprom_probe(struct platform_device *pdev)
359 +{
360 +       struct device_node *np = pdev->dev.of_node;
361 +       const char *eeprom;
362 +
363 +       if (of_property_read_string(np, "ralink,eeprom", &eeprom)) {
364 +               dev_err(&pdev->dev, "failed to load eeprom filename\n");
365 +               return 0;
366 +       }
367 +
368 +       rt2x00_pdata.eeprom_file_name = kstrdup(eeprom, GFP_KERNEL);
369 +//     rt2x00_pdata.mac_address = mac;
370 +       ltq_pci_plat_dev_init = rt2x00_pci_plat_dev_init;
371 +
372 +       dev_info(&pdev->dev, "using %s as eeprom\n", eeprom);
373 +
374 +       return 0;
375 +}
376 +
377 +static struct of_device_id ralink_eeprom_ids[] = {
378 +       { .compatible = "ralink,eeprom" },
379 +       { }
380 +};
381 +
382 +static struct platform_driver ralink_eeprom_driver = {
383 +       .driver         = {
384 +               .name           = "ralink,eeprom",
385 +               .owner  = THIS_MODULE,
386 +               .of_match_table = of_match_ptr(ralink_eeprom_ids),
387 +       },
388 +};
389 +
390 +static int __init of_ralink_eeprom_init(void)
391 +{
392 +       return platform_driver_probe(&ralink_eeprom_driver, of_ralink_eeprom_probe);
393 +}
394 +device_initcall(of_ralink_eeprom_init);
395 --- /dev/null
396 +++ b/arch/mips/include/asm/mach-lantiq/pci-ath-fixup.h
397 @@ -0,0 +1,6 @@
398 +#ifndef _PCI_ATH_FIXUP
399 +#define _PCI_ATH_FIXUP
400 +
401 +void ltq_pci_ath_fixup(unsigned slot, u16 *cal_data) __init;
402 +
403 +#endif /* _PCI_ATH_FIXUP */
404 --- /dev/null
405 +++ b/arch/mips/lantiq/xway/pci-ath-fixup.c
406 @@ -0,0 +1,109 @@
407 +/*
408 + *  Atheros AP94 reference board PCI initialization
409 + *
410 + *  Copyright (C) 2009-2010 Gabor Juhos <juhosg@openwrt.org>
411 + *
412 + *  This program is free software; you can redistribute it and/or modify it
413 + *  under the terms of the GNU General Public License version 2 as published
414 + *  by the Free Software Foundation.
415 + */
416 +
417 +#include <linux/pci.h>
418 +#include <linux/init.h>
419 +#include <linux/delay.h>
420 +#include <lantiq_soc.h>
421 +
422 +#define LTQ_PCI_MEM_BASE               0x18000000
423 +
424 +struct ath_fixup {
425 +       u16             *cal_data;
426 +       unsigned        slot;
427 +};
428 +
429 +static int ath_num_fixups;
430 +static struct ath_fixup ath_fixups[2];
431 +
432 +static void ath_pci_fixup(struct pci_dev *dev)
433 +{
434 +       void __iomem *mem;
435 +       u16 *cal_data = NULL;
436 +       u16 cmd;
437 +       u32 bar0;
438 +       u32 val;
439 +       unsigned i;
440 +
441 +       for (i = 0; i < ath_num_fixups; i++) {
442 +               if (ath_fixups[i].cal_data == NULL)
443 +                       continue;
444 +
445 +               if (ath_fixups[i].slot != PCI_SLOT(dev->devfn))
446 +                       continue;
447 +
448 +               cal_data = ath_fixups[i].cal_data;
449 +               break;
450 +       }
451 +
452 +       if (cal_data == NULL)
453 +               return;
454 +
455 +       if (*cal_data != 0xa55a) {
456 +               pr_err("pci %s: invalid calibration data\n", pci_name(dev));
457 +               return;
458 +       }
459 +
460 +       pr_info("pci %s: fixup device configuration\n", pci_name(dev));
461 +
462 +       mem = ioremap(LTQ_PCI_MEM_BASE, 0x10000);
463 +       if (!mem) {
464 +               pr_err("pci %s: ioremap error\n", pci_name(dev));
465 +               return;
466 +       }
467 +
468 +       pci_read_config_dword(dev, PCI_BASE_ADDRESS_0, &bar0);
469 +       pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, LTQ_PCI_MEM_BASE);
470 +       pci_read_config_word(dev, PCI_COMMAND, &cmd);
471 +       cmd |= PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
472 +       pci_write_config_word(dev, PCI_COMMAND, cmd);
473 +
474 +       /* set pointer to first reg address */
475 +       cal_data += 3;
476 +       while (*cal_data != 0xffff) {
477 +               u32 reg;
478 +               reg = *cal_data++;
479 +               val = *cal_data++;
480 +               val |= (*cal_data++) << 16;
481 +
482 +               ltq_w32(swab32(val), mem + reg);
483 +               udelay(100);
484 +       }
485 +
486 +       pci_read_config_dword(dev, PCI_VENDOR_ID, &val);
487 +       dev->vendor = val & 0xffff;
488 +       dev->device = (val >> 16) & 0xffff;
489 +
490 +       pci_read_config_dword(dev, PCI_CLASS_REVISION, &val);
491 +       dev->revision = val & 0xff;
492 +       dev->class = val >> 8; /* upper 3 bytes */
493 +
494 +       pr_info("pci %s: fixup info: [%04x:%04x] revision %02x class %#08x\n", 
495 +               pci_name(dev), dev->vendor, dev->device, dev->revision, dev->class);
496 +
497 +       pci_read_config_word(dev, PCI_COMMAND, &cmd);
498 +       cmd &= ~(PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY);
499 +       pci_write_config_word(dev, PCI_COMMAND, cmd);
500 +
501 +       pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, bar0);
502 +
503 +       iounmap(mem);
504 +}
505 +DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_ATHEROS, PCI_ANY_ID, ath_pci_fixup);
506 +
507 +void __init ltq_pci_ath_fixup(unsigned slot, u16 *cal_data)
508 +{
509 +       if (ath_num_fixups >= ARRAY_SIZE(ath_fixups))
510 +               return;
511 +
512 +       ath_fixups[ath_num_fixups].slot = slot;
513 +       ath_fixups[ath_num_fixups].cal_data = cal_data;
514 +       ath_num_fixups++;
515 +}