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MIPS: eBPF: Fix icache flush end address
[linux/fpc-iii.git] / arch / mips / ar7 / platform.c
blobf09262e0a72f386c91aba072589c9f03a56ae40e
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/delay.h>
23 #include <linux/dma-mapping.h>
24 #include <linux/platform_device.h>
25 #include <linux/mtd/physmap.h>
26 #include <linux/serial.h>
27 #include <linux/serial_8250.h>
28 #include <linux/ioport.h>
29 #include <linux/io.h>
30 #include <linux/vlynq.h>
31 #include <linux/leds.h>
32 #include <linux/string.h>
33 #include <linux/etherdevice.h>
34 #include <linux/phy.h>
35 #include <linux/phy_fixed.h>
36 #include <linux/gpio.h>
37 #include <linux/clk.h>
38
39 #include <asm/addrspace.h>
40 #include <asm/mach-ar7/ar7.h>
41 #include <asm/mach-ar7/prom.h>
42
43 /*****************************************************************************
44 * VLYNQ Bus
45 ****************************************************************************/
46 struct plat_vlynq_data {
47 struct plat_vlynq_ops ops;
48 int gpio_bit;
49 int reset_bit;
50 };
51
52 static int vlynq_on(struct vlynq_device *dev)
53 {
54 int ret;
55 struct plat_vlynq_data *pdata = dev->dev.platform_data;
56
57 ret = gpio_request(pdata->gpio_bit, "vlynq");
58 if (ret)
59 goto out;
60
61 ar7_device_reset(pdata->reset_bit);
62
63 ret = ar7_gpio_disable(pdata->gpio_bit);
64 if (ret)
65 goto out_enabled;
66
67 ret = ar7_gpio_enable(pdata->gpio_bit);
68 if (ret)
69 goto out_enabled;
70
71 ret = gpio_direction_output(pdata->gpio_bit, 0);
72 if (ret)
73 goto out_gpio_enabled;
74
75 msleep(50);
76
77 gpio_set_value(pdata->gpio_bit, 1);
78
79 msleep(50);
80
81 return 0;
82
83 out_gpio_enabled:
84 ar7_gpio_disable(pdata->gpio_bit);
85 out_enabled:
86 ar7_device_disable(pdata->reset_bit);
87 gpio_free(pdata->gpio_bit);
88 out:
89 return ret;
90 }
91
92 static void vlynq_off(struct vlynq_device *dev)
93 {
94 struct plat_vlynq_data *pdata = dev->dev.platform_data;
95
96 ar7_gpio_disable(pdata->gpio_bit);
97 gpio_free(pdata->gpio_bit);
98 ar7_device_disable(pdata->reset_bit);
99 }
100
101 static struct resource vlynq_low_res[] = {
102 {
103 .name = "regs",
104 .flags = IORESOURCE_MEM,
105 .start = AR7_REGS_VLYNQ0,
106 .end = AR7_REGS_VLYNQ0 + 0xff,
107 },
108 {
109 .name = "irq",
110 .flags = IORESOURCE_IRQ,
111 .start = 29,
112 .end = 29,
113 },
114 {
115 .name = "mem",
116 .flags = IORESOURCE_MEM,
117 .start = 0x04000000,
118 .end = 0x04ffffff,
119 },
120 {
121 .name = "devirq",
122 .flags = IORESOURCE_IRQ,
123 .start = 80,
124 .end = 111,
125 },
126 };
127
128 static struct resource vlynq_high_res[] = {
129 {
130 .name = "regs",
131 .flags = IORESOURCE_MEM,
132 .start = AR7_REGS_VLYNQ1,
133 .end = AR7_REGS_VLYNQ1 + 0xff,
134 },
135 {
136 .name = "irq",
137 .flags = IORESOURCE_IRQ,
138 .start = 33,
139 .end = 33,
140 },
141 {
142 .name = "mem",
143 .flags = IORESOURCE_MEM,
144 .start = 0x0c000000,
145 .end = 0x0cffffff,
146 },
147 {
148 .name = "devirq",
149 .flags = IORESOURCE_IRQ,
150 .start = 112,
151 .end = 143,
152 },
153 };
154
155 static struct plat_vlynq_data vlynq_low_data = {
156 .ops = {
157 .on = vlynq_on,
158 .off = vlynq_off,
159 },
160 .reset_bit = 20,
161 .gpio_bit = 18,
162 };
163
164 static struct plat_vlynq_data vlynq_high_data = {
165 .ops = {
166 .on = vlynq_on,
167 .off = vlynq_off,
168 },
169 .reset_bit = 16,
170 .gpio_bit = 19,
171 };
172
173 static struct platform_device vlynq_low = {
174 .id = 0,
175 .name = "vlynq",
176 .dev = {
177 .platform_data = &vlynq_low_data,
178 },
179 .resource = vlynq_low_res,
180 .num_resources = ARRAY_SIZE(vlynq_low_res),
181 };
182
183 static struct platform_device vlynq_high = {
184 .id = 1,
185 .name = "vlynq",
186 .dev = {
187 .platform_data = &vlynq_high_data,
188 },
189 .resource = vlynq_high_res,
190 .num_resources = ARRAY_SIZE(vlynq_high_res),
191 };
192
193 /*****************************************************************************
194 * Flash
195 ****************************************************************************/
196 static struct resource physmap_flash_resource = {
197 .name = "mem",
198 .flags = IORESOURCE_MEM,
199 .start = 0x10000000,
200 .end = 0x107fffff,
201 };
202
203 static const char *ar7_probe_types[] = { "ar7part", NULL };
204
205 static struct physmap_flash_data physmap_flash_data = {
206 .width = 2,
207 .part_probe_types = ar7_probe_types,
208 };
209
210 static struct platform_device physmap_flash = {
211 .name = "physmap-flash",
212 .dev = {
213 .platform_data = &physmap_flash_data,
214 },
215 .resource = &physmap_flash_resource,
216 .num_resources = 1,
217 };
218
219 /*****************************************************************************
220 * Ethernet
221 ****************************************************************************/
222 static struct resource cpmac_low_res[] = {
223 {
224 .name = "regs",
225 .flags = IORESOURCE_MEM,
226 .start = AR7_REGS_MAC0,
227 .end = AR7_REGS_MAC0 + 0x7ff,
228 },
229 {
230 .name = "irq",
231 .flags = IORESOURCE_IRQ,
232 .start = 27,
233 .end = 27,
234 },
235 };
236
237 static struct resource cpmac_high_res[] = {
238 {
239 .name = "regs",
240 .flags = IORESOURCE_MEM,
241 .start = AR7_REGS_MAC1,
242 .end = AR7_REGS_MAC1 + 0x7ff,
243 },
244 {
245 .name = "irq",
246 .flags = IORESOURCE_IRQ,
247 .start = 41,
248 .end = 41,
249 },
250 };
251
252 static struct fixed_phy_status fixed_phy_status __initdata = {
253 .link = 1,
254 .speed = 100,
255 .duplex = 1,
256 };
257
258 static struct plat_cpmac_data cpmac_low_data = {
259 .reset_bit = 17,
260 .power_bit = 20,
261 .phy_mask = 0x80000000,
262 };
263
264 static struct plat_cpmac_data cpmac_high_data = {
265 .reset_bit = 21,
266 .power_bit = 22,
267 .phy_mask = 0x7fffffff,
268 };
269
270 static u64 cpmac_dma_mask = DMA_BIT_MASK(32);
271
272 static struct platform_device cpmac_low = {
273 .id = 0,
274 .name = "cpmac",
275 .dev = {
276 .dma_mask = &cpmac_dma_mask,
277 .coherent_dma_mask = DMA_BIT_MASK(32),
278 .platform_data = &cpmac_low_data,
279 },
280 .resource = cpmac_low_res,
281 .num_resources = ARRAY_SIZE(cpmac_low_res),
282 };
283
284 static struct platform_device cpmac_high = {
285 .id = 1,
286 .name = "cpmac",
287 .dev = {
288 .dma_mask = &cpmac_dma_mask,
289 .coherent_dma_mask = DMA_BIT_MASK(32),
290 .platform_data = &cpmac_high_data,
291 },
292 .resource = cpmac_high_res,
293 .num_resources = ARRAY_SIZE(cpmac_high_res),
294 };
295
296 static void __init cpmac_get_mac(int instance, unsigned char *dev_addr)
297 {
298 char name[5], *mac;
299
300 sprintf(name, "mac%c", 'a' + instance);
301 mac = prom_getenv(name);
302 if (!mac && instance) {
303 sprintf(name, "mac%c", 'a');
304 mac = prom_getenv(name);
305 }
306
307 if (mac) {
308 if (!mac_pton(mac, dev_addr)) {
309 pr_warn("cannot parse mac address, using random address\n");
310 eth_random_addr(dev_addr);
311 }
312 } else
313 eth_random_addr(dev_addr);
314 }
315
316 /*****************************************************************************
317 * USB
318 ****************************************************************************/
319 static struct resource usb_res[] = {
320 {
321 .name = "regs",
322 .flags = IORESOURCE_MEM,
323 .start = AR7_REGS_USB,
324 .end = AR7_REGS_USB + 0xff,
325 },
326 {
327 .name = "irq",
328 .flags = IORESOURCE_IRQ,
329 .start = 32,
330 .end = 32,
331 },
332 {
333 .name = "mem",
334 .flags = IORESOURCE_MEM,
335 .start = 0x03400000,
336 .end = 0x03401fff,
337 },
338 };
339
340 static struct platform_device ar7_udc = {
341 .name = "ar7_udc",
342 .resource = usb_res,
343 .num_resources = ARRAY_SIZE(usb_res),
344 };
345
346 /*****************************************************************************
347 * LEDs
348 ****************************************************************************/
349 static const struct gpio_led default_leds[] = {
350 {
351 .name = "status",
352 .gpio = 8,
353 .active_low = 1,
354 },
355 };
356
357 static const struct gpio_led titan_leds[] = {
358 { .name = "status", .gpio = 8, .active_low = 1, },
359 { .name = "wifi", .gpio = 13, .active_low = 1, },
360 };
361
362 static const struct gpio_led dsl502t_leds[] = {
363 {
364 .name = "status",
365 .gpio = 9,
366 .active_low = 1,
367 },
368 {
369 .name = "ethernet",
370 .gpio = 7,
371 .active_low = 1,
372 },
373 {
374 .name = "usb",
375 .gpio = 12,
376 .active_low = 1,
377 },
378 };
379
380 static const struct gpio_led dg834g_leds[] = {
381 {
382 .name = "ppp",
383 .gpio = 6,
384 .active_low = 1,
385 },
386 {
387 .name = "status",
388 .gpio = 7,
389 .active_low = 1,
390 },
391 {
392 .name = "adsl",
393 .gpio = 8,
394 .active_low = 1,
395 },
396 {
397 .name = "wifi",
398 .gpio = 12,
399 .active_low = 1,
400 },
401 {
402 .name = "power",
403 .gpio = 14,
404 .active_low = 1,
405 .default_trigger = "default-on",
406 },
407 };
408
409 static const struct gpio_led fb_sl_leds[] = {
410 {
411 .name = "1",
412 .gpio = 7,
413 },
414 {
415 .name = "2",
416 .gpio = 13,
417 .active_low = 1,
418 },
419 {
420 .name = "3",
421 .gpio = 10,
422 .active_low = 1,
423 },
424 {
425 .name = "4",
426 .gpio = 12,
427 .active_low = 1,
428 },
429 {
430 .name = "5",
431 .gpio = 9,
432 .active_low = 1,
433 },
434 };
435
436 static const struct gpio_led fb_fon_leds[] = {
437 {
438 .name = "1",
439 .gpio = 8,
440 },
441 {
442 .name = "2",
443 .gpio = 3,
444 .active_low = 1,
445 },
446 {
447 .name = "3",
448 .gpio = 5,
449 },
450 {
451 .name = "4",
452 .gpio = 4,
453 .active_low = 1,
454 },
455 {
456 .name = "5",
457 .gpio = 11,
458 .active_low = 1,
459 },
460 };
461
462 static const struct gpio_led gt701_leds[] = {
463 {
464 .name = "inet:green",
465 .gpio = 13,
466 .active_low = 1,
467 },
468 {
469 .name = "usb",
470 .gpio = 12,
471 .active_low = 1,
472 },
473 {
474 .name = "inet:red",
475 .gpio = 9,
476 .active_low = 1,
477 },
478 {
479 .name = "power:red",
480 .gpio = 7,
481 .active_low = 1,
482 },
483 {
484 .name = "power:green",
485 .gpio = 8,
486 .active_low = 1,
487 .default_trigger = "default-on",
488 },
489 {
490 .name = "ethernet",
491 .gpio = 10,
492 .active_low = 1,
493 },
494 };
495
496 static struct gpio_led_platform_data ar7_led_data;
497
498 static struct platform_device ar7_gpio_leds = {
499 .name = "leds-gpio",
500 .dev = {
501 .platform_data = &ar7_led_data,
502 }
503 };
504
505 static void __init detect_leds(void)
506 {
507 char *prid, *usb_prod;
508
509 /* Default LEDs */
510 ar7_led_data.num_leds = ARRAY_SIZE(default_leds);
511 ar7_led_data.leds = default_leds;
512
513 /* FIXME: the whole thing is unreliable */
514 prid = prom_getenv("ProductID");
515 usb_prod = prom_getenv("usb_prod");
516
517 /* If we can't get the product id from PROM, use the default LEDs */
518 if (!prid)
519 return;
520
521 if (strstr(prid, "Fritz_Box_FON")) {
522 ar7_led_data.num_leds = ARRAY_SIZE(fb_fon_leds);
523 ar7_led_data.leds = fb_fon_leds;
524 } else if (strstr(prid, "Fritz_Box_")) {
525 ar7_led_data.num_leds = ARRAY_SIZE(fb_sl_leds);
526 ar7_led_data.leds = fb_sl_leds;
527 } else if ((!strcmp(prid, "AR7RD") || !strcmp(prid, "AR7DB"))
528 && usb_prod != NULL && strstr(usb_prod, "DSL-502T")) {
529 ar7_led_data.num_leds = ARRAY_SIZE(dsl502t_leds);
530 ar7_led_data.leds = dsl502t_leds;
531 } else if (strstr(prid, "DG834")) {
532 ar7_led_data.num_leds = ARRAY_SIZE(dg834g_leds);
533 ar7_led_data.leds = dg834g_leds;
534 } else if (strstr(prid, "CYWM") || strstr(prid, "CYWL")) {
535 ar7_led_data.num_leds = ARRAY_SIZE(titan_leds);
536 ar7_led_data.leds = titan_leds;
537 } else if (strstr(prid, "GT701")) {
538 ar7_led_data.num_leds = ARRAY_SIZE(gt701_leds);
539 ar7_led_data.leds = gt701_leds;
540 }
541 }
542
543 /*****************************************************************************
544 * Watchdog
545 ****************************************************************************/
546 static struct resource ar7_wdt_res = {
547 .name = "regs",
548 .flags = IORESOURCE_MEM,
549 .start = -1, /* Filled at runtime */
550 .end = -1, /* Filled at runtime */
551 };
552
553 static struct platform_device ar7_wdt = {
554 .name = "ar7_wdt",
555 .resource = &ar7_wdt_res,
556 .num_resources = 1,
557 };
558
559 /*****************************************************************************
560 * Init
561 ****************************************************************************/
562 static int __init ar7_register_uarts(void)
563 {
564 #ifdef CONFIG_SERIAL_8250
565 static struct uart_port uart_port __initdata;
566 struct clk *bus_clk;
567 int res;
568
569 memset(&uart_port, 0, sizeof(struct uart_port));
570
571 bus_clk = clk_get(NULL, "bus");
572 if (IS_ERR(bus_clk))
573 panic("unable to get bus clk");
574
575 uart_port.type = PORT_AR7;
576 uart_port.uartclk = clk_get_rate(bus_clk) / 2;
577 uart_port.iotype = UPIO_MEM32;
578 uart_port.flags = UPF_FIXED_TYPE | UPF_BOOT_AUTOCONF;
579 uart_port.regshift = 2;
580
581 uart_port.line = 0;
582 uart_port.irq = AR7_IRQ_UART0;
583 uart_port.mapbase = AR7_REGS_UART0;
584 uart_port.membase = ioremap(uart_port.mapbase, 256);
585
586 res = early_serial_setup(&uart_port);
587 if (res)
588 return res;
589
590 /* Only TNETD73xx have a second serial port */
591 if (ar7_has_second_uart()) {
592 uart_port.line = 1;
593 uart_port.irq = AR7_IRQ_UART1;
594 uart_port.mapbase = UR8_REGS_UART1;
595 uart_port.membase = ioremap(uart_port.mapbase, 256);
596
597 res = early_serial_setup(&uart_port);
598 if (res)
599 return res;
600 }
601 #endif
602
603 return 0;
604 }
605
606 static void __init titan_fixup_devices(void)
607 {
608 /* Set vlynq0 data */
609 vlynq_low_data.reset_bit = 15;
610 vlynq_low_data.gpio_bit = 14;
611
612 /* Set vlynq1 data */
613 vlynq_high_data.reset_bit = 16;
614 vlynq_high_data.gpio_bit = 7;
615
616 /* Set vlynq0 resources */
617 vlynq_low_res[0].start = TITAN_REGS_VLYNQ0;
618 vlynq_low_res[0].end = TITAN_REGS_VLYNQ0 + 0xff;
619 vlynq_low_res[1].start = 33;
620 vlynq_low_res[1].end = 33;
621 vlynq_low_res[2].start = 0x0c000000;
622 vlynq_low_res[2].end = 0x0fffffff;
623 vlynq_low_res[3].start = 80;
624 vlynq_low_res[3].end = 111;
625
626 /* Set vlynq1 resources */
627 vlynq_high_res[0].start = TITAN_REGS_VLYNQ1;
628 vlynq_high_res[0].end = TITAN_REGS_VLYNQ1 + 0xff;
629 vlynq_high_res[1].start = 34;
630 vlynq_high_res[1].end = 34;
631 vlynq_high_res[2].start = 0x40000000;
632 vlynq_high_res[2].end = 0x43ffffff;
633 vlynq_high_res[3].start = 112;
634 vlynq_high_res[3].end = 143;
635
636 /* Set cpmac0 data */
637 cpmac_low_data.phy_mask = 0x40000000;
638
639 /* Set cpmac1 data */
640 cpmac_high_data.phy_mask = 0x80000000;
641
642 /* Set cpmac0 resources */
643 cpmac_low_res[0].start = TITAN_REGS_MAC0;
644 cpmac_low_res[0].end = TITAN_REGS_MAC0 + 0x7ff;
645
646 /* Set cpmac1 resources */
647 cpmac_high_res[0].start = TITAN_REGS_MAC1;
648 cpmac_high_res[0].end = TITAN_REGS_MAC1 + 0x7ff;
649 }
650
651 static int __init ar7_register_devices(void)
652 {
653 void __iomem *bootcr;
654 u32 val;
655 int res;
656
657 res = ar7_gpio_init();
658 if (res)
659 pr_warn("unable to register gpios: %d\n", res);
660
661 res = ar7_register_uarts();
662 if (res)
663 pr_err("unable to setup uart(s): %d\n", res);
664
665 res = platform_device_register(&physmap_flash);
666 if (res)
667 pr_warn("unable to register physmap-flash: %d\n", res);
668
669 if (ar7_is_titan())
670 titan_fixup_devices();
671
672 ar7_device_disable(vlynq_low_data.reset_bit);
673 res = platform_device_register(&vlynq_low);
674 if (res)
675 pr_warn("unable to register vlynq-low: %d\n", res);
676
677 if (ar7_has_high_vlynq()) {
678 ar7_device_disable(vlynq_high_data.reset_bit);
679 res = platform_device_register(&vlynq_high);
680 if (res)
681 pr_warn("unable to register vlynq-high: %d\n", res);
682 }
683
684 if (ar7_has_high_cpmac()) {
685 res = fixed_phy_add(PHY_POLL, cpmac_high.id,
686 &fixed_phy_status, -1);
687 if (!res) {
688 cpmac_get_mac(1, cpmac_high_data.dev_addr);
689
690 res = platform_device_register(&cpmac_high);
691 if (res)
692 pr_warn("unable to register cpmac-high: %d\n",
693 res);
694 } else
695 pr_warn("unable to add cpmac-high phy: %d\n", res);
696 } else
697 cpmac_low_data.phy_mask = 0xffffffff;
698
699 res = fixed_phy_add(PHY_POLL, cpmac_low.id, &fixed_phy_status, -1);
700 if (!res) {
701 cpmac_get_mac(0, cpmac_low_data.dev_addr);
702 res = platform_device_register(&cpmac_low);
703 if (res)
704 pr_warn("unable to register cpmac-low: %d\n", res);
705 } else
706 pr_warn("unable to add cpmac-low phy: %d\n", res);
707
708 detect_leds();
709 res = platform_device_register(&ar7_gpio_leds);
710 if (res)
711 pr_warn("unable to register leds: %d\n", res);
712
713 res = platform_device_register(&ar7_udc);
714 if (res)
715 pr_warn("unable to register usb slave: %d\n", res);
716
717 /* Register watchdog only if enabled in hardware */
718 bootcr = ioremap_nocache(AR7_REGS_DCL, 4);
719 val = readl(bootcr);
720 iounmap(bootcr);
721 if (val & AR7_WDT_HW_ENA) {
722 if (ar7_has_high_vlynq())
723 ar7_wdt_res.start = UR8_REGS_WDT;
724 else
725 ar7_wdt_res.start = AR7_REGS_WDT;
726
727 ar7_wdt_res.end = ar7_wdt_res.start + 0x20;
728 res = platform_device_register(&ar7_wdt);
729 if (res)
730 pr_warn("unable to register watchdog: %d\n", res);
731 }
732
733 return 0;
734 }
735 device_initcall(ar7_register_devices);
Linux with added FPC-III support