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[openwrt.git] / target / linux / ifxmips / files-2.6.33 / arch / mips / ifxmips / ar9 / board.c
1 /*
2 * This program is free software; you can redistribute it and/or modify
3 * it under the terms of the GNU General Public License as published by
4 * the Free Software Foundation; either version 2 of the License, or
5 * (at your option) any later version.
6 *
7 * This program is distributed in the hope that it will be useful,
8 * but WITHOUT ANY WARRANTY; without even the implied warranty of
9 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
10 * GNU General Public License for more details.
11 *
12 * You should have received a copy of the GNU General Public License
13 * along with this program; if not, write to the Free Software
14 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
15 *
16 * Copyright (C) 2007 John Crispin <blogic@openwrt.org>
17 */
18
19 #include <linux/autoconf.h>
20 #include <linux/init.h>
21 #include <linux/module.h>
22 #include <linux/types.h>
23 #include <linux/string.h>
24 #include <linux/mtd/physmap.h>
25 #include <linux/kernel.h>
26 #include <linux/reboot.h>
27 #include <linux/platform_device.h>
28 #include <linux/leds.h>
29 #include <linux/etherdevice.h>
30 #include <linux/reboot.h>
31 #include <linux/time.h>
32 #include <linux/io.h>
33 #include <linux/gpio.h>
34
35 #include <asm/bootinfo.h>
36 #include <asm/irq.h>
37
38 #include <ifxmips.h>
39 #include <ifxmips_irq.h>
40
41 #define MAX_BOARD_NAME_LEN 32
42 #define MAX_IFXMIPS_DEVS 9
43
44 #define SYSTEM_DANUBE "Danube"
45 #define SYSTEM_DANUBE_CHIPID1 0x00129083
46 #define SYSTEM_DANUBE_CHIPID2 0x0012B083
47
48 #define SYSTEM_TWINPASS "Twinpass"
49 #define SYSTEM_TWINPASS_CHIPID 0x0012D083
50
51 enum {
52 EASY50712,
53 EASY4010,
54 ARV4519,
55 ARV452,
56 };
57
58 extern int ifxmips_pci_external_clock;
59 extern int ifxmips_pci_req_mask;
60
61 static unsigned int chiprev;
62 static int cmdline_mac;
63 char board_name[MAX_BOARD_NAME_LEN + 1] = { 0 };
64
65 struct ifxmips_board {
66 int type;
67 char name[32];
68 unsigned int system_type;
69 struct platform_device **devs;
70 struct resource reset_resource;
71 struct resource gpiodev_resource;
72 struct gpio_led *ifxmips_leds;
73 struct gpio_led *gpio_leds;
74 int pci_external_clock;
75 int pci_req_mask;
76 int num_devs;
77 };
78
79 DEFINE_SPINLOCK(ebu_lock);
80 EXPORT_SYMBOL_GPL(ebu_lock);
81
82 extern unsigned char ifxmips_ethaddr[6];
83 static int ifxmips_brn;
84
85 static struct gpio_led_platform_data ifxmips_led_data;
86
87 static struct platform_device ifxmips_led = {
88 .id = 0,
89 .name = "ifxmips_led",
90 .dev = {
91 .platform_data = (void *) &ifxmips_led_data,
92 }
93 };
94
95 static struct platform_device ifxmips_gpio = {
96 .id = 0,
97 .name = "ifxmips_gpio",
98 .num_resources = 1,
99 };
100
101 static struct platform_device ifxmips_mii = {
102 .id = 0,
103 .name = "ifxmips_mii0",
104 .dev = {
105 .platform_data = ifxmips_ethaddr,
106 }
107 };
108
109 static struct platform_device ifxmips_wdt = {
110 .id = 0,
111 .name = "ifxmips_wdt",
112 };
113
114 static struct platform_device ifxmips_ebu = {
115 .id = 0,
116 .name = "ifxmips_ebu",
117 };
118
119 static struct resource ifxmips_mtd_resource = {
120 .start = IFXMIPS_FLASH_START,
121 .end = IFXMIPS_FLASH_START + IFXMIPS_FLASH_MAX - 1,
122 .flags = IORESOURCE_MEM,
123 };
124
125 static struct platform_device ifxmips_mtd = {
126 .id = 0,
127 .name = "ifxmips_mtd",
128 .num_resources = 1,
129 .resource = &ifxmips_mtd_resource,
130 };
131
132 static struct platform_device ifxmips_gpio_dev = {
133 .name = "GPIODEV",
134 .id = -1,
135 .num_resources = 1,
136 };
137
138 #ifdef CONFIG_LEDS_GPIO
139 static struct gpio_led arv4519_gpio_leds[] = {
140 { .name = "ifx:green:power", .gpio = 3, .active_low = 1, },
141 { .name = "ifx:red:power", .gpio = 7, .active_low = 1, },
142 { .name = "ifx:green:adsl", .gpio = 4, .active_low = 1, },
143 { .name = "ifx:green:internet", .gpio = 5, .active_low = 1, },
144 { .name = "ifx:red:internet", .gpio = 8, .active_low = 1, },
145 { .name = "ifx:green:wlan", .gpio = 6, .active_low = 1, },
146 { .name = "ifx:green:usbpwr", .gpio = 14, .active_low = 1, },
147 { .name = "ifx:green:usb", .gpio = 19, .active_low = 1, },
148 };
149
150 static struct gpio_led arv452_gpio_leds[] = {
151 { .name = "ifx:blue:power", .gpio = 3, .active_low = 1, },
152 { .name = "ifx:blue:adsl", .gpio = 4, .active_low = 1, },
153 { .name = "ifx:blue:internet", .gpio = 5, .active_low = 1, },
154 { .name = "ifx:red:power", .gpio = 6, .active_low = 1, },
155 { .name = "ifx:yello:wps", .gpio = 7, .active_low = 1, },
156 { .name = "ifx:red:wps", .gpio = 9, .active_low = 1, },
157 { .name = "ifx:blue:voip", .gpio = 32, .active_low = 1, },
158 { .name = "ifx:blue:fxs1", .gpio = 33, .active_low = 1, },
159 { .name = "ifx:blue:fxs2", .gpio = 34, .active_low = 1, },
160 { .name = "ifx:blue:fxo", .gpio = 35, .active_low = 1, },
161 { .name = "ifx:blue:voice", .gpio = 36, .active_low = 1, },
162 { .name = "ifx:blue:usb", .gpio = 37, .active_low = 1, },
163 { .name = "ifx:blue:wlan", .gpio = 38, .active_low = 1, },
164 { .name = "ifx:red:internet", .gpio = 41, .active_low = 1, },
165 };
166
167 static struct gpio_led_platform_data ifxmips_gpio_led_data;
168
169 static struct platform_device ifxmips_gpio_leds = {
170 .name = "leds-gpio",
171 .id = -1,
172 .dev = {
173 .platform_data = (void *) &ifxmips_gpio_led_data,
174 }
175 };
176 #endif
177
178 static struct resource dwc_usb_res[] = {
179 {
180 .name = "dwc3884_membase",
181 .flags = IORESOURCE_MEM,
182 .start = 0x1E101000,
183 .end = 0x1E101FFF
184 },
185 {
186 .name = "dwc3884_irq",
187 .flags = IORESOURCE_IRQ,
188 .start = IFXMIPS_USB_INT,
189 }
190 };
191
192 static struct platform_device dwc_usb =
193 {
194 .id = 0,
195 .name = "dwc3884-hcd",
196 .resource = dwc_usb_res,
197 .num_resources = ARRAY_SIZE(dwc_usb_res),
198 };
199
200 struct platform_device *easy50712_devs[] = {
201 &ifxmips_led, &ifxmips_gpio, &ifxmips_mii,
202 &ifxmips_mtd, &ifxmips_wdt, &ifxmips_gpio_dev, &dwc_usb
203 };
204
205 struct platform_device *easy4010_devs[] = {
206 &ifxmips_led, &ifxmips_gpio, &ifxmips_mii,
207 &ifxmips_mtd, &ifxmips_wdt, &ifxmips_gpio_dev, &dwc_usb
208 };
209
210 struct platform_device *arv5419_devs[] = {
211 &ifxmips_gpio, &ifxmips_mii, &ifxmips_mtd,
212 &ifxmips_gpio_dev, &ifxmips_wdt, &dwc_usb,
213 #ifdef CONFIG_LEDS_GPIO
214 &ifxmips_gpio_leds,
215 #endif
216 };
217
218 struct platform_device *arv452_devs[] = {
219 &ifxmips_gpio, &ifxmips_mii, &ifxmips_mtd,
220 &ifxmips_gpio_dev, &ifxmips_wdt, &dwc_usb,
221 &ifxmips_ebu,
222 #ifdef CONFIG_LEDS_GPIO
223 &ifxmips_gpio_leds,
224 #endif
225 };
226
227 static struct gpio_led easy50712_leds[] = {
228 { .name = "ifx:green:test0", .gpio = 0,},
229 { .name = "ifx:green:test1", .gpio = 1,},
230 { .name = "ifx:green:test2", .gpio = 2,},
231 { .name = "ifx:green:test3", .gpio = 3,},
232 };
233
234 static struct gpio_led easy4010_leds[] = {
235 { .name = "ifx:green:test0", .gpio = 0,},
236 { .name = "ifx:green:test1", .gpio = 1,},
237 { .name = "ifx:green:test2", .gpio = 2,},
238 { .name = "ifx:green:test3", .gpio = 3,},
239 };
240
241 static struct ifxmips_board boards[] = {
242 {
243 /* infineon eval kit */
244 .type = EASY50712,
245 .name = "EASY50712",
246 .system_type = SYSTEM_DANUBE_CHIPID1,
247 .devs = easy50712_devs,
248 .reset_resource = {.name = "reset", .start = 1, .end = 15,},
249 .gpiodev_resource = { .name = "gpio",
250 .start = (1 << 0) | (1 << 1),
251 .end = (1 << 0) | (1 << 1)},
252 .ifxmips_leds = easy50712_leds,
253 }, {
254 /* infineon eval kit */
255 .type = EASY4010,
256 .name = "EASY4010",
257 .system_type = SYSTEM_TWINPASS_CHIPID,
258 .devs = easy4010_devs,
259 .reset_resource = {.name = "reset", .start = 1, .end = 15},
260 .gpiodev_resource = { .name = "gpio",
261 .start = (1 << 0) | (1 << 1),
262 .end = (1 << 0) | (1 << 1)},
263 .ifxmips_leds = easy4010_leds,
264 }, {
265 /* arcaydian annex-a board used by thompson, airties, ... */
266 .type = ARV4519,
267 .name = "ARV4519",
268 .system_type = SYSTEM_DANUBE_CHIPID2,
269 .devs = arv5419_devs,
270 .reset_resource = {.name = "reset", .start = 1, .end = 14},
271 .pci_external_clock = 1,
272 #ifdef CONFIG_LEDS_GPIO
273 .gpio_leds = arv4519_gpio_leds,
274 #endif
275 }, {
276 /* arcaydian annex-b board used by airties, arcor */
277 .type = ARV452,
278 .name = "ARV452",
279 .system_type = SYSTEM_DANUBE_CHIPID2,
280 .devs = arv452_devs,
281 .reset_resource = {.name = "reset", .start = 1, .end = 14},
282 .pci_external_clock = 1,
283 #ifdef CONFIG_LEDS_GPIO
284 .gpio_leds = arv452_gpio_leds,
285 #endif
286 },
287 };
288
289 const char *get_system_type(void)
290 {
291 chiprev = (ifxmips_r32(IFXMIPS_MPS_CHIPID) & 0x0FFFFFFF);
292
293 switch (chiprev) {
294 case SYSTEM_DANUBE_CHIPID1:
295 case SYSTEM_DANUBE_CHIPID2:
296 return SYSTEM_DANUBE;
297
298 case SYSTEM_TWINPASS_CHIPID:
299 return SYSTEM_TWINPASS;
300 }
301
302 return BOARD_SYSTEM_TYPE;
303 }
304
305 static int __init ifxmips_set_board_type(char *str)
306 {
307 str = strchr(str, '=');
308 if (!str)
309 goto out;
310 str++;
311 if (strlen(str) > MAX_BOARD_NAME_LEN)
312 goto out;
313 strncpy(board_name, str, MAX_BOARD_NAME_LEN);
314 printk(KERN_INFO "bootloader told us, that this is a %s board\n",
315 board_name);
316 out:
317 return 1;
318 }
319 __setup("ifxmips_board", ifxmips_set_board_type);
320
321 static int __init ifxmips_set_ethaddr(char *str)
322 {
323 #define IS_HEX(x) \
324 (((x >= '0' && x <= '9') || (x >= 'a' && x <= 'f') \
325 || (x >= 'A' && x <= 'F')) ? (1) : (0))
326 int i;
327 str = strchr(str, '=');
328 if (!str)
329 goto out;
330 str++;
331 if (strlen(str) != 17)
332 goto out;
333 for (i = 0; i < 6; i++) {
334 if (!IS_HEX(str[3 * i]) || !IS_HEX(str[(3 * i) + 1]))
335 goto out;
336 if ((i != 5) && (str[(3 * i) + 2] != ':'))
337 goto out;
338 ifxmips_ethaddr[i] = simple_strtoul(&str[3 * i], NULL, 16);
339 }
340 if (is_valid_ether_addr(ifxmips_ethaddr))
341 cmdline_mac = 1;
342 out:
343 return 1;
344 }
345 __setup("ethaddr", ifxmips_set_ethaddr);
346
347 int ifxmips_find_brn_block(void)
348 {
349 unsigned char temp[8];
350 memcpy_fromio(temp,
351 (void *)KSEG1ADDR(IFXMIPS_FLASH_START + 0x800000 - 0x10000), 8);
352 if (memcmp(temp, "BRN-BOOT", 8) == 0) {
353 if (!cmdline_mac)
354 memcpy_fromio(ifxmips_ethaddr,
355 (void *)KSEG1ADDR(IFXMIPS_FLASH_START +
356 0x800000 - 0x10000 + 0x16), 6);
357 if (is_valid_ether_addr(ifxmips_ethaddr))
358 cmdline_mac = 1;
359 return 1;
360 } else {
361 return 0;
362 }
363 }
364
365 int ifxmips_has_brn_block(void)
366 {
367 return ifxmips_brn;
368 }
369 EXPORT_SYMBOL(ifxmips_has_brn_block);
370
371 struct ifxmips_board *ifxmips_find_board(void)
372 {
373 int i;
374 if (!*board_name)
375 return 0;
376 for (i = 0; i < ARRAY_SIZE(boards); i++)
377 if ((boards[i].system_type == chiprev) &&
378 (!strcmp(boards[i].name, board_name)))
379 return &boards[i];
380 return 0;
381 }
382
383 int __init ifxmips_init_devices(void)
384 {
385 struct ifxmips_board *board;
386
387 chiprev = (ifxmips_r32(IFXMIPS_MPS_CHIPID) & 0x0FFFFFFF);
388 board = ifxmips_find_board();
389 ifxmips_brn = ifxmips_find_brn_block();
390
391 if (!cmdline_mac)
392 random_ether_addr(ifxmips_ethaddr);
393
394 if (!board) {
395 switch (chiprev) {
396 case SYSTEM_DANUBE_CHIPID1:
397 case SYSTEM_DANUBE_CHIPID2:
398 default:
399 board = &boards[0];
400 break;
401 case SYSTEM_TWINPASS_CHIPID:
402 board = &boards[1];
403 break;
404 }
405 }
406
407 switch (board->type) {
408 case EASY50712:
409 board->num_devs = ARRAY_SIZE(easy50712_devs);
410 ifxmips_led_data.num_leds = ARRAY_SIZE(easy50712_leds);
411 break;
412 case EASY4010:
413 board->num_devs = ARRAY_SIZE(easy4010_devs);
414 ifxmips_led_data.num_leds = ARRAY_SIZE(easy4010_leds);
415 break;
416 case ARV4519:
417 /* set some sane defaults for the gpios */
418 gpio_set_value(3, 0);
419 gpio_set_value(4, 0);
420 gpio_set_value(5, 0);
421 gpio_set_value(6, 0);
422 gpio_set_value(7, 1);
423 gpio_set_value(8, 1);
424 gpio_set_value(19, 0);
425 board->num_devs = ARRAY_SIZE(arv5419_devs);
426 #ifdef CONFIG_LEDS_GPIO
427 ifxmips_gpio_led_data.num_leds = ARRAY_SIZE(arv4519_gpio_leds);
428 #endif
429 break;
430 case ARV452:
431 /* set some sane defaults for the gpios */
432 board->num_devs = ARRAY_SIZE(arv452_devs);
433 ifxmips_w32(0x8001e7ff, IFXMIPS_EBU_BUSCON1);
434 #ifdef CONFIG_LEDS_GPIO
435 ifxmips_gpio_led_data.num_leds = ARRAY_SIZE(arv452_gpio_leds);
436 #endif
437 break;
438 }
439 #ifdef CONFIG_LEDS_GPIO
440 ifxmips_gpio_led_data.leds = board->gpio_leds;
441 #endif
442 ifxmips_led_data.leds = board->ifxmips_leds;
443
444 printk(KERN_INFO "%s: adding %d devs\n",
445 __func__, board->num_devs);
446
447 ifxmips_gpio.resource = &board->reset_resource;
448 ifxmips_gpio_dev.resource = &board->gpiodev_resource;
449 if (board->pci_external_clock)
450 ifxmips_pci_external_clock = 1;
451 if (board->pci_req_mask)
452 ifxmips_pci_req_mask = board->pci_req_mask;
453 printk(KERN_INFO "using board definition %s\n", board->name);
454 return platform_add_devices(board->devs, board->num_devs);
455 }
456
457 arch_initcall(ifxmips_init_devices);
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