[WATCHDOG] Add AT91SAM9X watchdog
[deliverable/linux.git] / arch / arm / plat-omap / devices.c
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1a8bfa1e
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1/*
2 * linux/arch/arm/plat-omap/devices.c
3 *
4 * Common platform device setup/initialization for OMAP1 and OMAP2
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 */
11
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12#include <linux/module.h>
13#include <linux/kernel.h>
14#include <linux/init.h>
15#include <linux/platform_device.h>
16
a09e64fb 17#include <mach/hardware.h>
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18#include <asm/io.h>
19#include <asm/mach-types.h>
20#include <asm/mach/map.h>
21
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22#include <mach/tc.h>
23#include <mach/board.h>
7736c09c 24#include <mach/mmc.h>
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25#include <mach/mux.h>
26#include <mach/gpio.h>
27#include <mach/menelaus.h>
28#include <mach/mcbsp.h>
1a8bfa1e 29
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30#if defined(CONFIG_OMAP_DSP) || defined(CONFIG_OMAP_DSP_MODULE)
31
32#include "../plat-omap/dsp/dsp_common.h"
33
34static struct dsp_platform_data dsp_pdata = {
35 .kdev_list = LIST_HEAD_INIT(dsp_pdata.kdev_list),
36};
37
38static struct resource omap_dsp_resources[] = {
39 {
40 .name = "dsp_mmu",
41 .start = -1,
42 .flags = IORESOURCE_IRQ,
43 },
44};
45
46static struct platform_device omap_dsp_device = {
47 .name = "dsp",
48 .id = -1,
49 .num_resources = ARRAY_SIZE(omap_dsp_resources),
50 .resource = omap_dsp_resources,
51 .dev = {
52 .platform_data = &dsp_pdata,
53 },
54};
55
56static inline void omap_init_dsp(void)
57{
58 struct resource *res;
59 int irq;
60
61 if (cpu_is_omap15xx())
62 irq = INT_1510_DSP_MMU;
63 else if (cpu_is_omap16xx())
64 irq = INT_1610_DSP_MMU;
65 else if (cpu_is_omap24xx())
66 irq = INT_24XX_DSP_MMU;
67
68 res = platform_get_resource_byname(&omap_dsp_device,
69 IORESOURCE_IRQ, "dsp_mmu");
70 res->start = irq;
71
72 platform_device_register(&omap_dsp_device);
73}
74
75int dsp_kfunc_device_register(struct dsp_kfunc_device *kdev)
76{
77 static DEFINE_MUTEX(dsp_pdata_lock);
78
79 mutex_init(&kdev->lock);
80
81 mutex_lock(&dsp_pdata_lock);
82 list_add_tail(&kdev->entry, &dsp_pdata.kdev_list);
83 mutex_unlock(&dsp_pdata_lock);
84
85 return 0;
86}
87EXPORT_SYMBOL(dsp_kfunc_device_register);
88
89#else
90static inline void omap_init_dsp(void) { }
91#endif /* CONFIG_OMAP_DSP */
92
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93/*-------------------------------------------------------------------------*/
94#if defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE)
95
96static void omap_init_kp(void)
97{
98 if (machine_is_omap_h2() || machine_is_omap_h3()) {
99 omap_cfg_reg(F18_1610_KBC0);
100 omap_cfg_reg(D20_1610_KBC1);
101 omap_cfg_reg(D19_1610_KBC2);
102 omap_cfg_reg(E18_1610_KBC3);
103 omap_cfg_reg(C21_1610_KBC4);
104
105 omap_cfg_reg(G18_1610_KBR0);
106 omap_cfg_reg(F19_1610_KBR1);
107 omap_cfg_reg(H14_1610_KBR2);
108 omap_cfg_reg(E20_1610_KBR3);
109 omap_cfg_reg(E19_1610_KBR4);
110 omap_cfg_reg(N19_1610_KBR5);
495f71db 111 } else if (machine_is_omap_perseus2() || machine_is_omap_fsample()) {
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112 omap_cfg_reg(E2_730_KBR0);
113 omap_cfg_reg(J7_730_KBR1);
114 omap_cfg_reg(E1_730_KBR2);
115 omap_cfg_reg(F3_730_KBR3);
116 omap_cfg_reg(D2_730_KBR4);
117
118 omap_cfg_reg(C2_730_KBC0);
119 omap_cfg_reg(D3_730_KBC1);
120 omap_cfg_reg(E4_730_KBC2);
121 omap_cfg_reg(F4_730_KBC3);
122 omap_cfg_reg(E3_730_KBC4);
123 } else if (machine_is_omap_h4()) {
124 omap_cfg_reg(T19_24XX_KBR0);
125 omap_cfg_reg(R19_24XX_KBR1);
126 omap_cfg_reg(V18_24XX_KBR2);
127 omap_cfg_reg(M21_24XX_KBR3);
128 omap_cfg_reg(E5__24XX_KBR4);
129 if (omap_has_menelaus()) {
130 omap_cfg_reg(B3__24XX_KBR5);
131 omap_cfg_reg(AA4_24XX_KBC2);
132 omap_cfg_reg(B13_24XX_KBC6);
133 } else {
134 omap_cfg_reg(M18_24XX_KBR5);
135 omap_cfg_reg(H19_24XX_KBC2);
136 omap_cfg_reg(N19_24XX_KBC6);
137 }
138 omap_cfg_reg(R20_24XX_KBC0);
139 omap_cfg_reg(M14_24XX_KBC1);
140 omap_cfg_reg(V17_24XX_KBC3);
141 omap_cfg_reg(P21_24XX_KBC4);
142 omap_cfg_reg(L14_24XX_KBC5);
143 }
144}
145#else
146static inline void omap_init_kp(void) {}
147#endif
148
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149/*-------------------------------------------------------------------------*/
150#if defined(CONFIG_OMAP_MCBSP) || defined(CONFIG_OMAP_MCBSP_MODULE)
151
152static struct platform_device **omap_mcbsp_devices;
153
154void omap_mcbsp_register_board_cfg(struct omap_mcbsp_platform_data *config,
155 int size)
156{
157 int i;
158
159 if (size > OMAP_MAX_MCBSP_COUNT) {
160 printk(KERN_WARNING "Registered too many McBSPs platform_data."
161 " Using maximum (%d) available.\n",
162 OMAP_MAX_MCBSP_COUNT);
163 size = OMAP_MAX_MCBSP_COUNT;
164 }
165
166 omap_mcbsp_devices = kzalloc(size * sizeof(struct platform_device *),
167 GFP_KERNEL);
168 if (!omap_mcbsp_devices) {
169 printk(KERN_ERR "Could not register McBSP devices\n");
170 return;
171 }
172
173 for (i = 0; i < size; i++) {
174 struct platform_device *new_mcbsp;
175 int ret;
176
177 new_mcbsp = platform_device_alloc("omap-mcbsp", i + 1);
178 if (!new_mcbsp)
179 continue;
180 new_mcbsp->dev.platform_data = &config[i];
181 ret = platform_device_add(new_mcbsp);
182 if (ret) {
183 platform_device_put(new_mcbsp);
184 continue;
185 }
186 omap_mcbsp_devices[i] = new_mcbsp;
187 }
188}
189
190#else
191void omap_mcbsp_register_board_cfg(struct omap_mcbsp_platform_data *config,
192 int size)
193{ }
194#endif
195
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196/*-------------------------------------------------------------------------*/
197
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198#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) || \
199 defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE)
1a8bfa1e 200
7736c09c 201#if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX)
1a8bfa1e 202#define OMAP_MMC1_BASE 0x4809c000
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203#define OMAP_MMC1_END (OMAP_MMC1_BASE + 0x1fc)
204#define OMAP_MMC1_INT INT_24XX_MMC_IRQ
205
206#define OMAP_MMC2_BASE 0x480b4000
207#define OMAP_MMC2_END (OMAP_MMC2_BASE + 0x1fc)
208#define OMAP_MMC2_INT INT_24XX_MMC2_IRQ
209
1a8bfa1e 210#else
7736c09c 211
1a8bfa1e 212#define OMAP_MMC1_BASE 0xfffb7800
7736c09c 213#define OMAP_MMC1_END (OMAP_MMC1_BASE + 0x7f)
1a8bfa1e 214#define OMAP_MMC1_INT INT_MMC
7736c09c 215
1a8bfa1e 216#define OMAP_MMC2_BASE 0xfffb7c00 /* omap16xx only */
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217#define OMAP_MMC2_END (OMAP_MMC2_BASE + 0x7f)
218#define OMAP_MMC2_INT INT_1610_MMC2
1a8bfa1e 219
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220#endif
221
222static struct omap_mmc_platform_data mmc1_data;
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223
224static u64 mmc1_dmamask = 0xffffffff;
225
226static struct resource mmc1_resources[] = {
227 {
ce9c1a83 228 .start = OMAP_MMC1_BASE,
7736c09c 229 .end = OMAP_MMC1_END,
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230 .flags = IORESOURCE_MEM,
231 },
232 {
233 .start = OMAP_MMC1_INT,
234 .flags = IORESOURCE_IRQ,
235 },
236};
237
238static struct platform_device mmc_omap_device1 = {
239 .name = "mmci-omap",
240 .id = 1,
241 .dev = {
1a8bfa1e 242 .dma_mask = &mmc1_dmamask,
7736c09c 243 .platform_data = &mmc1_data,
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244 },
245 .num_resources = ARRAY_SIZE(mmc1_resources),
246 .resource = mmc1_resources,
247};
248
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249#if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP2430) || \
250 defined(CONFIG_ARCH_OMAP34XX)
1a8bfa1e 251
7736c09c 252static struct omap_mmc_platform_data mmc2_data;
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253
254static u64 mmc2_dmamask = 0xffffffff;
255
256static struct resource mmc2_resources[] = {
257 {
ce9c1a83 258 .start = OMAP_MMC2_BASE,
7736c09c 259 .end = OMAP_MMC2_END,
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260 .flags = IORESOURCE_MEM,
261 },
262 {
7736c09c 263 .start = OMAP_MMC2_INT,
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264 .flags = IORESOURCE_IRQ,
265 },
266};
267
268static struct platform_device mmc_omap_device2 = {
269 .name = "mmci-omap",
270 .id = 2,
271 .dev = {
1a8bfa1e 272 .dma_mask = &mmc2_dmamask,
7736c09c 273 .platform_data = &mmc2_data,
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274 },
275 .num_resources = ARRAY_SIZE(mmc2_resources),
276 .resource = mmc2_resources,
277};
278#endif
279
7736c09c 280static inline void omap_init_mmc_conf(const struct omap_mmc_config *mmc_conf)
1a8bfa1e 281{
7736c09c 282 if (cpu_is_omap2430() || cpu_is_omap34xx())
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283 return;
284
7736c09c 285 if (mmc_conf->mmc[0].enabled) {
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286 if (cpu_is_omap24xx()) {
287 omap_cfg_reg(H18_24XX_MMC_CMD);
288 omap_cfg_reg(H15_24XX_MMC_CLKI);
289 omap_cfg_reg(G19_24XX_MMC_CLKO);
290 omap_cfg_reg(F20_24XX_MMC_DAT0);
291 omap_cfg_reg(F19_24XX_MMC_DAT_DIR0);
292 omap_cfg_reg(G18_24XX_MMC_CMD_DIR);
293 } else {
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294 omap_cfg_reg(MMC_CMD);
295 omap_cfg_reg(MMC_CLK);
296 omap_cfg_reg(MMC_DAT0);
297 if (cpu_is_omap1710()) {
298 omap_cfg_reg(M15_1710_MMC_CLKI);
299 omap_cfg_reg(P19_1710_MMC_CMDDIR);
300 omap_cfg_reg(P20_1710_MMC_DATDIR0);
301 }
302 }
7736c09c 303 if (mmc_conf->mmc[0].wire4) {
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304 if (cpu_is_omap24xx()) {
305 omap_cfg_reg(H14_24XX_MMC_DAT1);
306 omap_cfg_reg(E19_24XX_MMC_DAT2);
307 omap_cfg_reg(D19_24XX_MMC_DAT3);
308 omap_cfg_reg(E20_24XX_MMC_DAT_DIR1);
309 omap_cfg_reg(F18_24XX_MMC_DAT_DIR2);
310 omap_cfg_reg(E18_24XX_MMC_DAT_DIR3);
311 } else {
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312 omap_cfg_reg(MMC_DAT1);
313 /* NOTE: DAT2 can be on W10 (here) or M15 */
7736c09c 314 if (!mmc_conf->mmc[0].nomux)
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315 omap_cfg_reg(MMC_DAT2);
316 omap_cfg_reg(MMC_DAT3);
317 }
318 }
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319 }
320
321#ifdef CONFIG_ARCH_OMAP16XX
322 /* block 2 is on newer chips, and has many pinout options */
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323 if (mmc_conf->mmc[1].enabled) {
324 if (!mmc_conf->mmc[1].nomux) {
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325 omap_cfg_reg(Y8_1610_MMC2_CMD);
326 omap_cfg_reg(Y10_1610_MMC2_CLK);
327 omap_cfg_reg(R18_1610_MMC2_CLKIN);
328 omap_cfg_reg(W8_1610_MMC2_DAT0);
7736c09c 329 if (mmc_conf->mmc[1].wire4) {
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330 omap_cfg_reg(V8_1610_MMC2_DAT1);
331 omap_cfg_reg(W15_1610_MMC2_DAT2);
332 omap_cfg_reg(R10_1610_MMC2_DAT3);
333 }
334
335 /* These are needed for the level shifter */
336 omap_cfg_reg(V9_1610_MMC2_CMDDIR);
337 omap_cfg_reg(V5_1610_MMC2_DATDIR0);
338 omap_cfg_reg(W19_1610_MMC2_DATDIR1);
339 }
340
341 /* Feedback clock must be set on OMAP-1710 MMC2 */
342 if (cpu_is_omap1710())
343 omap_writel(omap_readl(MOD_CONF_CTRL_1) | (1 << 24),
344 MOD_CONF_CTRL_1);
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RK
345 }
346#endif
347}
348
349static void __init omap_init_mmc(void)
350{
351 const struct omap_mmc_config *mmc_conf;
352
353 /* NOTE: assumes MMC was never (wrongly) enabled */
354 mmc_conf = omap_get_config(OMAP_TAG_MMC, struct omap_mmc_config);
355 if (!mmc_conf)
356 return;
357
358 omap_init_mmc_conf(mmc_conf);
359
360 if (mmc_conf->mmc[0].enabled) {
361 mmc1_data.conf = mmc_conf->mmc[0];
362 (void) platform_device_register(&mmc_omap_device1);
363 }
364
365#if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP2430) || \
366 defined(CONFIG_ARCH_OMAP34XX)
367 if (mmc_conf->mmc[1].enabled) {
368 mmc2_data.conf = mmc_conf->mmc[1];
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369 (void) platform_device_register(&mmc_omap_device2);
370 }
371#endif
1a8bfa1e 372}
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373
374void omap_set_mmc_info(int host, const struct omap_mmc_platform_data *info)
375{
376 switch (host) {
377 case 1:
378 mmc1_data = *info;
379 break;
380#if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP2430) || \
381 defined(CONFIG_ARCH_OMAP34XX)
382 case 2:
383 mmc2_data = *info;
384 break;
385#endif
386 default:
387 BUG();
388 }
389}
390
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391#else
392static inline void omap_init_mmc(void) {}
7736c09c 393void omap_set_mmc_info(int host, const struct omap_mmc_platform_data *info) {}
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394#endif
395
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396/*-------------------------------------------------------------------------*/
397
398/* Numbering for the SPI-capable controllers when used for SPI:
399 * spi = 1
400 * uwire = 2
401 * mmc1..2 = 3..4
402 * mcbsp1..3 = 5..7
403 */
404
405#if defined(CONFIG_SPI_OMAP_UWIRE) || defined(CONFIG_SPI_OMAP_UWIRE_MODULE)
406
407#define OMAP_UWIRE_BASE 0xfffb3000
408
409static struct resource uwire_resources[] = {
410 {
411 .start = OMAP_UWIRE_BASE,
412 .end = OMAP_UWIRE_BASE + 0x20,
413 .flags = IORESOURCE_MEM,
414 },
415};
416
417static struct platform_device omap_uwire_device = {
418 .name = "omap_uwire",
419 .id = -1,
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TL
420 .num_resources = ARRAY_SIZE(uwire_resources),
421 .resource = uwire_resources,
422};
423
424static void omap_init_uwire(void)
425{
426 /* FIXME define and use a boot tag; not all boards will be hooking
427 * up devices to the microwire controller, and multi-board configs
428 * mean that CONFIG_SPI_OMAP_UWIRE may be configured anyway...
429 */
430
431 /* board-specific code must configure chipselects (only a few
432 * are normally used) and SCLK/SDI/SDO (each has two choices).
433 */
434 (void) platform_device_register(&omap_uwire_device);
435}
436#else
437static inline void omap_init_uwire(void) {}
438#endif
439
440/*-------------------------------------------------------------------------*/
441
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TL
442#if defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE)
443
444#ifdef CONFIG_ARCH_OMAP24XX
445#define OMAP_WDT_BASE 0x48022000
446#else
447#define OMAP_WDT_BASE 0xfffeb000
448#endif
449
450static struct resource wdt_resources[] = {
451 {
452 .start = OMAP_WDT_BASE,
453 .end = OMAP_WDT_BASE + 0x4f,
454 .flags = IORESOURCE_MEM,
455 },
456};
457
458static struct platform_device omap_wdt_device = {
459 .name = "omap_wdt",
460 .id = -1,
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TL
461 .num_resources = ARRAY_SIZE(wdt_resources),
462 .resource = wdt_resources,
463};
464
465static void omap_init_wdt(void)
466{
467 (void) platform_device_register(&omap_wdt_device);
468}
469#else
470static inline void omap_init_wdt(void) {}
471#endif
472
473/*-------------------------------------------------------------------------*/
474
c40fae95 475#if defined(CONFIG_HW_RANDOM_OMAP) || defined(CONFIG_HW_RANDOM_OMAP_MODULE)
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476
477#ifdef CONFIG_ARCH_OMAP24XX
478#define OMAP_RNG_BASE 0x480A0000
479#else
480#define OMAP_RNG_BASE 0xfffe5000
481#endif
482
483static struct resource rng_resources[] = {
484 {
485 .start = OMAP_RNG_BASE,
486 .end = OMAP_RNG_BASE + 0x4f,
487 .flags = IORESOURCE_MEM,
488 },
489};
490
491static struct platform_device omap_rng_device = {
492 .name = "omap_rng",
493 .id = -1,
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494 .num_resources = ARRAY_SIZE(rng_resources),
495 .resource = rng_resources,
496};
497
498static void omap_init_rng(void)
499{
500 (void) platform_device_register(&omap_rng_device);
501}
502#else
503static inline void omap_init_rng(void) {}
504#endif
505
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TL
506/*
507 * This gets called after board-specific INIT_MACHINE, and initializes most
508 * on-chip peripherals accessible on this board (except for few like USB):
509 *
510 * (a) Does any "standard config" pin muxing needed. Board-specific
511 * code will have muxed GPIO pins and done "nonstandard" setup;
512 * that code could live in the boot loader.
513 * (b) Populating board-specific platform_data with the data drivers
514 * rely on to handle wiring variations.
515 * (c) Creating platform devices as meaningful on this board and
516 * with this kernel configuration.
517 *
518 * Claiming GPIOs, and setting their direction and initial values, is the
519 * responsibility of the device drivers. So is responding to probe().
520 *
521 * Board-specific knowlege like creating devices or pin setup is to be
522 * kept out of drivers as much as possible. In particular, pin setup
523 * may be handled by the boot loader, and drivers should expect it will
524 * normally have been done by the time they're probed.
525 */
526static int __init omap_init_devices(void)
527{
56a25641
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528/*
529 * Need to enable relevant once for 2430 SDP
530 */
531#ifndef CONFIG_MACH_OMAP_2430SDP
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532 /* please keep these calls, and their implementations above,
533 * in alphabetical order so they're easier to sort through.
534 */
c40fae95 535 omap_init_dsp();
9b6553cd 536 omap_init_kp();
1a8bfa1e 537 omap_init_mmc();
9b6553cd 538 omap_init_uwire();
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539 omap_init_wdt();
540 omap_init_rng();
56a25641 541#endif
1a8bfa1e
TL
542 return 0;
543}
544arch_initcall(omap_init_devices);
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