Merge branch 'proc' of git://git.kernel.org/pub/scm/linux/kernel/git/adobriyan/proc
[linux-2.6] / arch / arm / plat-omap / devices.c
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
12 #include <linux/module.h>
13 #include <linux/kernel.h>
14 #include <linux/init.h>
15 #include <linux/platform_device.h>
16 #include <linux/io.h>
17
18 #include <mach/hardware.h>
19 #include <asm/mach-types.h>
20 #include <asm/mach/map.h>
21
22 #include <mach/tc.h>
23 #include <mach/board.h>
24 #include <mach/mmc.h>
25 #include <mach/mux.h>
26 #include <mach/gpio.h>
27 #include <mach/menelaus.h>
28 #include <mach/mcbsp.h>
29
30 #if     defined(CONFIG_OMAP_DSP) || defined(CONFIG_OMAP_DSP_MODULE)
31
32 #include "../plat-omap/dsp/dsp_common.h"
33
34 static struct dsp_platform_data dsp_pdata = {
35         .kdev_list = LIST_HEAD_INIT(dsp_pdata.kdev_list),
36 };
37
38 static struct resource omap_dsp_resources[] = {
39         {
40                 .name   = "dsp_mmu",
41                 .start  = -1,
42                 .flags  = IORESOURCE_IRQ,
43         },
44 };
45
46 static 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
56 static 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
75 int 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 }
87 EXPORT_SYMBOL(dsp_kfunc_device_register);
88
89 #else
90 static inline void omap_init_dsp(void) { }
91 #endif  /* CONFIG_OMAP_DSP */
92
93 /*-------------------------------------------------------------------------*/
94 #if     defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE)
95
96 static 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);
111         } else if (machine_is_omap_perseus2() || machine_is_omap_fsample()) {
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
146 static inline void omap_init_kp(void) {}
147 #endif
148
149 /*-------------------------------------------------------------------------*/
150 #if defined(CONFIG_OMAP_MCBSP) || defined(CONFIG_OMAP_MCBSP_MODULE)
151
152 static struct platform_device **omap_mcbsp_devices;
153
154 void 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
191 void omap_mcbsp_register_board_cfg(struct omap_mcbsp_platform_data *config,
192                                         int size)
193 {  }
194 #endif
195
196 /*-------------------------------------------------------------------------*/
197
198 #if     defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) || \
199         defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE)
200
201 #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX)
202 #define OMAP_MMC1_BASE          0x4809c000
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
210 #else
211
212 #define OMAP_MMC1_BASE          0xfffb7800
213 #define OMAP_MMC1_END           (OMAP_MMC1_BASE + 0x7f)
214 #define OMAP_MMC1_INT           INT_MMC
215
216 #define OMAP_MMC2_BASE          0xfffb7c00      /* omap16xx only */
217 #define OMAP_MMC2_END           (OMAP_MMC2_BASE + 0x7f)
218 #define OMAP_MMC2_INT           INT_1610_MMC2
219
220 #endif
221
222 static struct omap_mmc_platform_data mmc1_data;
223
224 static u64 mmc1_dmamask = 0xffffffff;
225
226 static struct resource mmc1_resources[] = {
227         {
228                 .start          = OMAP_MMC1_BASE,
229                 .end            = OMAP_MMC1_END,
230                 .flags          = IORESOURCE_MEM,
231         },
232         {
233                 .start          = OMAP_MMC1_INT,
234                 .flags          = IORESOURCE_IRQ,
235         },
236 };
237
238 static struct platform_device mmc_omap_device1 = {
239         .name           = "mmci-omap",
240         .id             = 1,
241         .dev = {
242                 .dma_mask       = &mmc1_dmamask,
243                 .platform_data  = &mmc1_data,
244         },
245         .num_resources  = ARRAY_SIZE(mmc1_resources),
246         .resource       = mmc1_resources,
247 };
248
249 #if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP2430) || \
250         defined(CONFIG_ARCH_OMAP34XX)
251
252 static struct omap_mmc_platform_data mmc2_data;
253
254 static u64 mmc2_dmamask = 0xffffffff;
255
256 static struct resource mmc2_resources[] = {
257         {
258                 .start          = OMAP_MMC2_BASE,
259                 .end            = OMAP_MMC2_END,
260                 .flags          = IORESOURCE_MEM,
261         },
262         {
263                 .start          = OMAP_MMC2_INT,
264                 .flags          = IORESOURCE_IRQ,
265         },
266 };
267
268 static struct platform_device mmc_omap_device2 = {
269         .name           = "mmci-omap",
270         .id             = 2,
271         .dev = {
272                 .dma_mask       = &mmc2_dmamask,
273                 .platform_data  = &mmc2_data,
274         },
275         .num_resources  = ARRAY_SIZE(mmc2_resources),
276         .resource       = mmc2_resources,
277 };
278 #endif
279
280 static inline void omap_init_mmc_conf(const struct omap_mmc_config *mmc_conf)
281 {
282         if (cpu_is_omap2430() || cpu_is_omap34xx())
283                 return;
284
285         if (mmc_conf->mmc[0].enabled) {
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 {
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                 }
303                 if (mmc_conf->mmc[0].wire4) {
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 {
312                                 omap_cfg_reg(MMC_DAT1);
313                                 /* NOTE:  DAT2 can be on W10 (here) or M15 */
314                                 if (!mmc_conf->mmc[0].nomux)
315                                         omap_cfg_reg(MMC_DAT2);
316                                 omap_cfg_reg(MMC_DAT3);
317                         }
318                 }
319         }
320
321 #ifdef  CONFIG_ARCH_OMAP16XX
322         /* block 2 is on newer chips, and has many pinout options */
323         if (mmc_conf->mmc[1].enabled) {
324                 if (!mmc_conf->mmc[1].nomux) {
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);
329                         if (mmc_conf->mmc[1].wire4) {
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);
345         }
346 #endif
347 }
348
349 static 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];
369                 (void) platform_device_register(&mmc_omap_device2);
370         }
371 #endif
372 }
373
374 void 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
391 #else
392 static inline void omap_init_mmc(void) {}
393 void omap_set_mmc_info(int host, const struct omap_mmc_platform_data *info) {}
394 #endif
395
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
409 static struct resource uwire_resources[] = {
410         {
411                 .start          = OMAP_UWIRE_BASE,
412                 .end            = OMAP_UWIRE_BASE + 0x20,
413                 .flags          = IORESOURCE_MEM,
414         },
415 };
416
417 static struct platform_device omap_uwire_device = {
418         .name      = "omap_uwire",
419         .id          = -1,
420         .num_resources  = ARRAY_SIZE(uwire_resources),
421         .resource       = uwire_resources,
422 };
423
424 static 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
437 static inline void omap_init_uwire(void) {}
438 #endif
439
440 /*-------------------------------------------------------------------------*/
441
442 #if     defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE)
443
444 static struct resource wdt_resources[] = {
445         {
446                 .flags          = IORESOURCE_MEM,
447         },
448 };
449
450 static struct platform_device omap_wdt_device = {
451         .name      = "omap_wdt",
452         .id          = -1,
453         .num_resources  = ARRAY_SIZE(wdt_resources),
454         .resource       = wdt_resources,
455 };
456
457 static void omap_init_wdt(void)
458 {
459         if (cpu_is_omap16xx())
460                 wdt_resources[0].start = 0xfffeb000;
461         else if (cpu_is_omap2420())
462                 wdt_resources[0].start = 0x48022000; /* WDT2 */
463         else if (cpu_is_omap2430())
464                 wdt_resources[0].start = 0x49016000; /* WDT2 */
465         else if (cpu_is_omap343x())
466                 wdt_resources[0].start = 0x48314000; /* WDT2 */
467         else
468                 return;
469
470         wdt_resources[0].end = wdt_resources[0].start + 0x4f;
471
472         (void) platform_device_register(&omap_wdt_device);
473 }
474 #else
475 static inline void omap_init_wdt(void) {}
476 #endif
477
478 /*-------------------------------------------------------------------------*/
479
480 #if defined(CONFIG_HW_RANDOM_OMAP) || defined(CONFIG_HW_RANDOM_OMAP_MODULE)
481
482 #ifdef CONFIG_ARCH_OMAP24XX
483 #define OMAP_RNG_BASE           0x480A0000
484 #else
485 #define OMAP_RNG_BASE           0xfffe5000
486 #endif
487
488 static struct resource rng_resources[] = {
489         {
490                 .start          = OMAP_RNG_BASE,
491                 .end            = OMAP_RNG_BASE + 0x4f,
492                 .flags          = IORESOURCE_MEM,
493         },
494 };
495
496 static struct platform_device omap_rng_device = {
497         .name      = "omap_rng",
498         .id          = -1,
499         .num_resources  = ARRAY_SIZE(rng_resources),
500         .resource       = rng_resources,
501 };
502
503 static void omap_init_rng(void)
504 {
505         (void) platform_device_register(&omap_rng_device);
506 }
507 #else
508 static inline void omap_init_rng(void) {}
509 #endif
510
511 /*
512  * This gets called after board-specific INIT_MACHINE, and initializes most
513  * on-chip peripherals accessible on this board (except for few like USB):
514  *
515  *  (a) Does any "standard config" pin muxing needed.  Board-specific
516  *      code will have muxed GPIO pins and done "nonstandard" setup;
517  *      that code could live in the boot loader.
518  *  (b) Populating board-specific platform_data with the data drivers
519  *      rely on to handle wiring variations.
520  *  (c) Creating platform devices as meaningful on this board and
521  *      with this kernel configuration.
522  *
523  * Claiming GPIOs, and setting their direction and initial values, is the
524  * responsibility of the device drivers.  So is responding to probe().
525  *
526  * Board-specific knowlege like creating devices or pin setup is to be
527  * kept out of drivers as much as possible.  In particular, pin setup
528  * may be handled by the boot loader, and drivers should expect it will
529  * normally have been done by the time they're probed.
530  */
531 static int __init omap_init_devices(void)
532 {
533 /*
534  * Need to enable relevant once for 2430 SDP
535  */
536 #ifndef CONFIG_MACH_OMAP_2430SDP
537         /* please keep these calls, and their implementations above,
538          * in alphabetical order so they're easier to sort through.
539          */
540         omap_init_dsp();
541         omap_init_kp();
542         omap_init_mmc();
543         omap_init_uwire();
544         omap_init_wdt();
545         omap_init_rng();
546 #endif
547         return 0;
548 }
549 arch_initcall(omap_init_devices);