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Linux 4.1.18
[linux/fpc-iii.git] / arch / mips / ar7 / platform.c
blobbe9ff1673ded7f2d20bbffa7897b9ac70dcedb07
1 /*
2 * Copyright (C) 2006,2007 Felix Fietkau <nbd@openwrt.org>
3 * Copyright (C) 2006,2007 Eugene Konev <ejka@openwrt.org>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18 */
19
20 #include <linux/init.h>
21 #include <linux/types.h>
22 #include <linux/module.h>
23 #include <linux/delay.h>
24 #include <linux/dma-mapping.h>
25 #include <linux/platform_device.h>
26 #include <linux/mtd/physmap.h>
27 #include <linux/serial.h>
28 #include <linux/serial_8250.h>
29 #include <linux/ioport.h>
30 #include <linux/io.h>
31 #include <linux/vlynq.h>
32 #include <linux/leds.h>
33 #include <linux/string.h>
34 #include <linux/etherdevice.h>
35 #include <linux/phy.h>
36 #include <linux/phy_fixed.h>
37 #include <linux/gpio.h>
38 #include <linux/clk.h>
39
40 #include <asm/addrspace.h>
41 #include <asm/mach-ar7/ar7.h>
42 #include <asm/mach-ar7/gpio.h>
43 #include <asm/mach-ar7/prom.h>
44
45 /*****************************************************************************
46 * VLYNQ Bus
47 ****************************************************************************/
48 struct plat_vlynq_data {
49 struct plat_vlynq_ops ops;
50 int gpio_bit;
51 int reset_bit;
52 };
53
54 static int vlynq_on(struct vlynq_device *dev)
55 {
56 int ret;
57 struct plat_vlynq_data *pdata = dev->dev.platform_data;
58
59 ret = gpio_request(pdata->gpio_bit, "vlynq");
60 if (ret)
61 goto out;
62
63 ar7_device_reset(pdata->reset_bit);
64
65 ret = ar7_gpio_disable(pdata->gpio_bit);
66 if (ret)
67 goto out_enabled;
68
69 ret = ar7_gpio_enable(pdata->gpio_bit);
70 if (ret)
71 goto out_enabled;
72
73 ret = gpio_direction_output(pdata->gpio_bit, 0);
74 if (ret)
75 goto out_gpio_enabled;
76
77 msleep(50);
78
79 gpio_set_value(pdata->gpio_bit, 1);
80
81 msleep(50);
82
83 return 0;
84
85 out_gpio_enabled:
86 ar7_gpio_disable(pdata->gpio_bit);
87 out_enabled:
88 ar7_device_disable(pdata->reset_bit);
89 gpio_free(pdata->gpio_bit);
90 out:
91 return ret;
92 }
93
94 static void vlynq_off(struct vlynq_device *dev)
95 {
96 struct plat_vlynq_data *pdata = dev->dev.platform_data;
97
98 ar7_gpio_disable(pdata->gpio_bit);
99 gpio_free(pdata->gpio_bit);
100 ar7_device_disable(pdata->reset_bit);
101 }
102
103 static struct resource vlynq_low_res[] = {
104 {
105 .name = "regs",
106 .flags = IORESOURCE_MEM,
107 .start = AR7_REGS_VLYNQ0,
108 .end = AR7_REGS_VLYNQ0 + 0xff,
109 },
110 {
111 .name = "irq",
112 .flags = IORESOURCE_IRQ,
113 .start = 29,
114 .end = 29,
115 },
116 {
117 .name = "mem",
118 .flags = IORESOURCE_MEM,
119 .start = 0x04000000,
120 .end = 0x04ffffff,
121 },
122 {
123 .name = "devirq",
124 .flags = IORESOURCE_IRQ,
125 .start = 80,
126 .end = 111,
127 },
128 };
129
130 static struct resource vlynq_high_res[] = {
131 {
132 .name = "regs",
133 .flags = IORESOURCE_MEM,
134 .start = AR7_REGS_VLYNQ1,
135 .end = AR7_REGS_VLYNQ1 + 0xff,
136 },
137 {
138 .name = "irq",
139 .flags = IORESOURCE_IRQ,
140 .start = 33,
141 .end = 33,
142 },
143 {
144 .name = "mem",
145 .flags = IORESOURCE_MEM,
146 .start = 0x0c000000,
147 .end = 0x0cffffff,
148 },
149 {
150 .name = "devirq",
151 .flags = IORESOURCE_IRQ,
152 .start = 112,
153 .end = 143,
154 },
155 };
156
157 static struct plat_vlynq_data vlynq_low_data = {
158 .ops = {
159 .on = vlynq_on,
160 .off = vlynq_off,
161 },
162 .reset_bit = 20,
163 .gpio_bit = 18,
164 };
165
166 static struct plat_vlynq_data vlynq_high_data = {
167 .ops = {
168 .on = vlynq_on,
169 .off = vlynq_off,
170 },
171 .reset_bit = 16,
172 .gpio_bit = 19,
173 };
174
175 static struct platform_device vlynq_low = {
176 .id = 0,
177 .name = "vlynq",
178 .dev = {
179 .platform_data = &vlynq_low_data,
180 },
181 .resource = vlynq_low_res,
182 .num_resources = ARRAY_SIZE(vlynq_low_res),
183 };
184
185 static struct platform_device vlynq_high = {
186 .id = 1,
187 .name = "vlynq",
188 .dev = {
189 .platform_data = &vlynq_high_data,
190 },
191 .resource = vlynq_high_res,
192 .num_resources = ARRAY_SIZE(vlynq_high_res),
193 };
194
195 /*****************************************************************************
196 * Flash
197 ****************************************************************************/
198 static struct resource physmap_flash_resource = {
199 .name = "mem",
200 .flags = IORESOURCE_MEM,
201 .start = 0x10000000,
202 .end = 0x107fffff,
203 };
204
205 static const char *ar7_probe_types[] = { "ar7part", NULL };
206
207 static struct physmap_flash_data physmap_flash_data = {
208 .width = 2,
209 .part_probe_types = ar7_probe_types,
210 };
211
212 static struct platform_device physmap_flash = {
213 .name = "physmap-flash",
214 .dev = {
215 .platform_data = &physmap_flash_data,
216 },
217 .resource = &physmap_flash_resource,
218 .num_resources = 1,
219 };
220
221 /*****************************************************************************
222 * Ethernet
223 ****************************************************************************/
224 static struct resource cpmac_low_res[] = {
225 {
226 .name = "regs",
227 .flags = IORESOURCE_MEM,
228 .start = AR7_REGS_MAC0,
229 .end = AR7_REGS_MAC0 + 0x7ff,
230 },
231 {
232 .name = "irq",
233 .flags = IORESOURCE_IRQ,
234 .start = 27,
235 .end = 27,
236 },
237 };
238
239 static struct resource cpmac_high_res[] = {
240 {
241 .name = "regs",
242 .flags = IORESOURCE_MEM,
243 .start = AR7_REGS_MAC1,
244 .end = AR7_REGS_MAC1 + 0x7ff,
245 },
246 {
247 .name = "irq",
248 .flags = IORESOURCE_IRQ,
249 .start = 41,
250 .end = 41,
251 },
252 };
253
254 static struct fixed_phy_status fixed_phy_status __initdata = {
255 .link = 1,
256 .speed = 100,
257 .duplex = 1,
258 };
259
260 static struct plat_cpmac_data cpmac_low_data = {
261 .reset_bit = 17,
262 .power_bit = 20,
263 .phy_mask = 0x80000000,
264 };
265
266 static struct plat_cpmac_data cpmac_high_data = {
267 .reset_bit = 21,
268 .power_bit = 22,
269 .phy_mask = 0x7fffffff,
270 };
271
272 static u64 cpmac_dma_mask = DMA_BIT_MASK(32);
273
274 static struct platform_device cpmac_low = {
275 .id = 0,
276 .name = "cpmac",
277 .dev = {
278 .dma_mask = &cpmac_dma_mask,
279 .coherent_dma_mask = DMA_BIT_MASK(32),
280 .platform_data = &cpmac_low_data,
281 },
282 .resource = cpmac_low_res,
283 .num_resources = ARRAY_SIZE(cpmac_low_res),
284 };
285
286 static struct platform_device cpmac_high = {
287 .id = 1,
288 .name = "cpmac",
289 .dev = {
290 .dma_mask = &cpmac_dma_mask,
291 .coherent_dma_mask = DMA_BIT_MASK(32),
292 .platform_data = &cpmac_high_data,
293 },
294 .resource = cpmac_high_res,
295 .num_resources = ARRAY_SIZE(cpmac_high_res),
296 };
297
298 static void __init cpmac_get_mac(int instance, unsigned char *dev_addr)
299 {
300 char name[5], *mac;
301
302 sprintf(name, "mac%c", 'a' + instance);
303 mac = prom_getenv(name);
304 if (!mac && instance) {
305 sprintf(name, "mac%c", 'a');
306 mac = prom_getenv(name);
307 }
308
309 if (mac) {
310 if (!mac_pton(mac, dev_addr)) {
311 pr_warn("cannot parse mac address, using random address\n");
312 eth_random_addr(dev_addr);
313 }
314 } else
315 eth_random_addr(dev_addr);
316 }
317
318 /*****************************************************************************
319 * USB
320 ****************************************************************************/
321 static struct resource usb_res[] = {
322 {
323 .name = "regs",
324 .flags = IORESOURCE_MEM,
325 .start = AR7_REGS_USB,
326 .end = AR7_REGS_USB + 0xff,
327 },
328 {
329 .name = "irq",
330 .flags = IORESOURCE_IRQ,
331 .start = 32,
332 .end = 32,
333 },
334 {
335 .name = "mem",
336 .flags = IORESOURCE_MEM,
337 .start = 0x03400000,
338 .end = 0x03401fff,
339 },
340 };
341
342 static struct platform_device ar7_udc = {
343 .name = "ar7_udc",
344 .resource = usb_res,
345 .num_resources = ARRAY_SIZE(usb_res),
346 };
347
348 /*****************************************************************************
349 * LEDs
350 ****************************************************************************/
351 static struct gpio_led default_leds[] = {
352 {
353 .name = "status",
354 .gpio = 8,
355 .active_low = 1,
356 },
357 };
358
359 static struct gpio_led titan_leds[] = {
360 { .name = "status", .gpio = 8, .active_low = 1, },
361 { .name = "wifi", .gpio = 13, .active_low = 1, },
362 };
363
364 static struct gpio_led dsl502t_leds[] = {
365 {
366 .name = "status",
367 .gpio = 9,
368 .active_low = 1,
369 },
370 {
371 .name = "ethernet",
372 .gpio = 7,
373 .active_low = 1,
374 },
375 {
376 .name = "usb",
377 .gpio = 12,
378 .active_low = 1,
379 },
380 };
381
382 static struct gpio_led dg834g_leds[] = {
383 {
384 .name = "ppp",
385 .gpio = 6,
386 .active_low = 1,
387 },
388 {
389 .name = "status",
390 .gpio = 7,
391 .active_low = 1,
392 },
393 {
394 .name = "adsl",
395 .gpio = 8,
396 .active_low = 1,
397 },
398 {
399 .name = "wifi",
400 .gpio = 12,
401 .active_low = 1,
402 },
403 {
404 .name = "power",
405 .gpio = 14,
406 .active_low = 1,
407 .default_trigger = "default-on",
408 },
409 };
410
411 static struct gpio_led fb_sl_leds[] = {
412 {
413 .name = "1",
414 .gpio = 7,
415 },
416 {
417 .name = "2",
418 .gpio = 13,
419 .active_low = 1,
420 },
421 {
422 .name = "3",
423 .gpio = 10,
424 .active_low = 1,
425 },
426 {
427 .name = "4",
428 .gpio = 12,
429 .active_low = 1,
430 },
431 {
432 .name = "5",
433 .gpio = 9,
434 .active_low = 1,
435 },
436 };
437
438 static struct gpio_led fb_fon_leds[] = {
439 {
440 .name = "1",
441 .gpio = 8,
442 },
443 {
444 .name = "2",
445 .gpio = 3,
446 .active_low = 1,
447 },
448 {
449 .name = "3",
450 .gpio = 5,
451 },
452 {
453 .name = "4",
454 .gpio = 4,
455 .active_low = 1,
456 },
457 {
458 .name = "5",
459 .gpio = 11,
460 .active_low = 1,
461 },
462 };
463
464 static struct gpio_led gt701_leds[] = {
465 {
466 .name = "inet:green",
467 .gpio = 13,
468 .active_low = 1,
469 },
470 {
471 .name = "usb",
472 .gpio = 12,
473 .active_low = 1,
474 },
475 {
476 .name = "inet:red",
477 .gpio = 9,
478 .active_low = 1,
479 },
480 {
481 .name = "power:red",
482 .gpio = 7,
483 .active_low = 1,
484 },
485 {
486 .name = "power:green",
487 .gpio = 8,
488 .active_low = 1,
489 .default_trigger = "default-on",
490 },
491 {
492 .name = "ethernet",
493 .gpio = 10,
494 .active_low = 1,
495 },
496 };
497
498 static struct gpio_led_platform_data ar7_led_data;
499
500 static struct platform_device ar7_gpio_leds = {
501 .name = "leds-gpio",
502 .dev = {
503 .platform_data = &ar7_led_data,
504 }
505 };
506
507 static void __init detect_leds(void)
508 {
509 char *prid, *usb_prod;
510
511 /* Default LEDs */
512 ar7_led_data.num_leds = ARRAY_SIZE(default_leds);
513 ar7_led_data.leds = default_leds;
514
515 /* FIXME: the whole thing is unreliable */
516 prid = prom_getenv("ProductID");
517 usb_prod = prom_getenv("usb_prod");
518
519 /* If we can't get the product id from PROM, use the default LEDs */
520 if (!prid)
521 return;
522
523 if (strstr(prid, "Fritz_Box_FON")) {
524 ar7_led_data.num_leds = ARRAY_SIZE(fb_fon_leds);
525 ar7_led_data.leds = fb_fon_leds;
526 } else if (strstr(prid, "Fritz_Box_")) {
527 ar7_led_data.num_leds = ARRAY_SIZE(fb_sl_leds);
528 ar7_led_data.leds = fb_sl_leds;
529 } else if ((!strcmp(prid, "AR7RD") || !strcmp(prid, "AR7DB"))
530 && usb_prod != NULL && strstr(usb_prod, "DSL-502T")) {
531 ar7_led_data.num_leds = ARRAY_SIZE(dsl502t_leds);
532 ar7_led_data.leds = dsl502t_leds;
533 } else if (strstr(prid, "DG834")) {
534 ar7_led_data.num_leds = ARRAY_SIZE(dg834g_leds);
535 ar7_led_data.leds = dg834g_leds;
536 } else if (strstr(prid, "CYWM") || strstr(prid, "CYWL")) {
537 ar7_led_data.num_leds = ARRAY_SIZE(titan_leds);
538 ar7_led_data.leds = titan_leds;
539 } else if (strstr(prid, "GT701")) {
540 ar7_led_data.num_leds = ARRAY_SIZE(gt701_leds);
541 ar7_led_data.leds = gt701_leds;
542 }
543 }
544
545 /*****************************************************************************
546 * Watchdog
547 ****************************************************************************/
548 static struct resource ar7_wdt_res = {
549 .name = "regs",
550 .flags = IORESOURCE_MEM,
551 .start = -1, /* Filled at runtime */
552 .end = -1, /* Filled at runtime */
553 };
554
555 static struct platform_device ar7_wdt = {
556 .name = "ar7_wdt",
557 .resource = &ar7_wdt_res,
558 .num_resources = 1,
559 };
560
561 /*****************************************************************************
562 * Init
563 ****************************************************************************/
564 static int __init ar7_register_uarts(void)
565 {
566 #ifdef CONFIG_SERIAL_8250
567 static struct uart_port uart_port __initdata;
568 struct clk *bus_clk;
569 int res;
570
571 memset(&uart_port, 0, sizeof(struct uart_port));
572
573 bus_clk = clk_get(NULL, "bus");
574 if (IS_ERR(bus_clk))
575 panic("unable to get bus clk");
576
577 uart_port.type = PORT_AR7;
578 uart_port.uartclk = clk_get_rate(bus_clk) / 2;
579 uart_port.iotype = UPIO_MEM32;
580 uart_port.regshift = 2;
581
582 uart_port.line = 0;
583 uart_port.irq = AR7_IRQ_UART0;
584 uart_port.mapbase = AR7_REGS_UART0;
585 uart_port.membase = ioremap(uart_port.mapbase, 256);
586
587 res = early_serial_setup(&uart_port);
588 if (res)
589 return res;
590
591 /* Only TNETD73xx have a second serial port */
592 if (ar7_has_second_uart()) {
593 uart_port.line = 1;
594 uart_port.irq = AR7_IRQ_UART1;
595 uart_port.mapbase = UR8_REGS_UART1;
596 uart_port.membase = ioremap(uart_port.mapbase, 256);
597
598 res = early_serial_setup(&uart_port);
599 if (res)
600 return res;
601 }
602 #endif
603
604 return 0;
605 }
606
607 static void __init titan_fixup_devices(void)
608 {
609 /* Set vlynq0 data */
610 vlynq_low_data.reset_bit = 15;
611 vlynq_low_data.gpio_bit = 14;
612
613 /* Set vlynq1 data */
614 vlynq_high_data.reset_bit = 16;
615 vlynq_high_data.gpio_bit = 7;
616
617 /* Set vlynq0 resources */
618 vlynq_low_res[0].start = TITAN_REGS_VLYNQ0;
619 vlynq_low_res[0].end = TITAN_REGS_VLYNQ0 + 0xff;
620 vlynq_low_res[1].start = 33;
621 vlynq_low_res[1].end = 33;
622 vlynq_low_res[2].start = 0x0c000000;
623 vlynq_low_res[2].end = 0x0fffffff;
624 vlynq_low_res[3].start = 80;
625 vlynq_low_res[3].end = 111;
626
627 /* Set vlynq1 resources */
628 vlynq_high_res[0].start = TITAN_REGS_VLYNQ1;
629 vlynq_high_res[0].end = TITAN_REGS_VLYNQ1 + 0xff;
630 vlynq_high_res[1].start = 34;
631 vlynq_high_res[1].end = 34;
632 vlynq_high_res[2].start = 0x40000000;
633 vlynq_high_res[2].end = 0x43ffffff;
634 vlynq_high_res[3].start = 112;
635 vlynq_high_res[3].end = 143;
636
637 /* Set cpmac0 data */
638 cpmac_low_data.phy_mask = 0x40000000;
639
640 /* Set cpmac1 data */
641 cpmac_high_data.phy_mask = 0x80000000;
642
643 /* Set cpmac0 resources */
644 cpmac_low_res[0].start = TITAN_REGS_MAC0;
645 cpmac_low_res[0].end = TITAN_REGS_MAC0 + 0x7ff;
646
647 /* Set cpmac1 resources */
648 cpmac_high_res[0].start = TITAN_REGS_MAC1;
649 cpmac_high_res[0].end = TITAN_REGS_MAC1 + 0x7ff;
650 }
651
652 static int __init ar7_register_devices(void)
653 {
654 void __iomem *bootcr;
655 u32 val;
656 int res;
657
658 res = ar7_register_uarts();
659 if (res)
660 pr_err("unable to setup uart(s): %d\n", res);
661
662 res = platform_device_register(&physmap_flash);
663 if (res)
664 pr_warn("unable to register physmap-flash: %d\n", res);
665
666 if (ar7_is_titan())
667 titan_fixup_devices();
668
669 ar7_device_disable(vlynq_low_data.reset_bit);
670 res = platform_device_register(&vlynq_low);
671 if (res)
672 pr_warn("unable to register vlynq-low: %d\n", res);
673
674 if (ar7_has_high_vlynq()) {
675 ar7_device_disable(vlynq_high_data.reset_bit);
676 res = platform_device_register(&vlynq_high);
677 if (res)
678 pr_warn("unable to register vlynq-high: %d\n", res);
679 }
680
681 if (ar7_has_high_cpmac()) {
682 res = fixed_phy_add(PHY_POLL, cpmac_high.id, &fixed_phy_status);
683 if (!res) {
684 cpmac_get_mac(1, cpmac_high_data.dev_addr);
685
686 res = platform_device_register(&cpmac_high);
687 if (res)
688 pr_warn("unable to register cpmac-high: %d\n",
689 res);
690 } else
691 pr_warn("unable to add cpmac-high phy: %d\n", res);
692 } else
693 cpmac_low_data.phy_mask = 0xffffffff;
694
695 res = fixed_phy_add(PHY_POLL, cpmac_low.id, &fixed_phy_status);
696 if (!res) {
697 cpmac_get_mac(0, cpmac_low_data.dev_addr);
698 res = platform_device_register(&cpmac_low);
699 if (res)
700 pr_warn("unable to register cpmac-low: %d\n", res);
701 } else
702 pr_warn("unable to add cpmac-low phy: %d\n", res);
703
704 detect_leds();
705 res = platform_device_register(&ar7_gpio_leds);
706 if (res)
707 pr_warn("unable to register leds: %d\n", res);
708
709 res = platform_device_register(&ar7_udc);
710 if (res)
711 pr_warn("unable to register usb slave: %d\n", res);
712
713 /* Register watchdog only if enabled in hardware */
714 bootcr = ioremap_nocache(AR7_REGS_DCL, 4);
715 val = readl(bootcr);
716 iounmap(bootcr);
717 if (val & AR7_WDT_HW_ENA) {
718 if (ar7_has_high_vlynq())
719 ar7_wdt_res.start = UR8_REGS_WDT;
720 else
721 ar7_wdt_res.start = AR7_REGS_WDT;
722
723 ar7_wdt_res.end = ar7_wdt_res.start + 0x20;
724 res = platform_device_register(&ar7_wdt);
725 if (res)
726 pr_warn("unable to register watchdog: %d\n", res);
727 }
728
729 return 0;
730 }
731 device_initcall(ar7_register_devices);
Linux with added FPC-III support