Merge branch 'for-rmk-fixes' of git://aeryn.fluff.org.uk/bjdooks/linux
[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/control.h>
24 #include <mach/board.h>
25 #include <mach/mmc.h>
26 #include <mach/mux.h>
27 #include <mach/gpio.h>
28 #include <mach/menelaus.h>
29 #include <mach/mcbsp.h>
30 #include <mach/dsp_common.h>
31
32 #if     defined(CONFIG_OMAP_DSP) || defined(CONFIG_OMAP_DSP_MODULE)
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         spin_lock_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         /* 2430 and 34xx keypad is on TWL4030 */
99         if (cpu_is_omap2430() || cpu_is_omap34xx())
100                 return;
101
102         if (machine_is_omap_h2() || machine_is_omap_h3()) {
103                 omap_cfg_reg(F18_1610_KBC0);
104                 omap_cfg_reg(D20_1610_KBC1);
105                 omap_cfg_reg(D19_1610_KBC2);
106                 omap_cfg_reg(E18_1610_KBC3);
107                 omap_cfg_reg(C21_1610_KBC4);
108
109                 omap_cfg_reg(G18_1610_KBR0);
110                 omap_cfg_reg(F19_1610_KBR1);
111                 omap_cfg_reg(H14_1610_KBR2);
112                 omap_cfg_reg(E20_1610_KBR3);
113                 omap_cfg_reg(E19_1610_KBR4);
114                 omap_cfg_reg(N19_1610_KBR5);
115         } else if (machine_is_omap_perseus2() || machine_is_omap_fsample()) {
116                 omap_cfg_reg(E2_730_KBR0);
117                 omap_cfg_reg(J7_730_KBR1);
118                 omap_cfg_reg(E1_730_KBR2);
119                 omap_cfg_reg(F3_730_KBR3);
120                 omap_cfg_reg(D2_730_KBR4);
121
122                 omap_cfg_reg(C2_730_KBC0);
123                 omap_cfg_reg(D3_730_KBC1);
124                 omap_cfg_reg(E4_730_KBC2);
125                 omap_cfg_reg(F4_730_KBC3);
126                 omap_cfg_reg(E3_730_KBC4);
127         } else if (machine_is_omap_h4()) {
128                 omap_cfg_reg(T19_24XX_KBR0);
129                 omap_cfg_reg(R19_24XX_KBR1);
130                 omap_cfg_reg(V18_24XX_KBR2);
131                 omap_cfg_reg(M21_24XX_KBR3);
132                 omap_cfg_reg(E5__24XX_KBR4);
133                 if (omap_has_menelaus()) {
134                         omap_cfg_reg(B3__24XX_KBR5);
135                         omap_cfg_reg(AA4_24XX_KBC2);
136                         omap_cfg_reg(B13_24XX_KBC6);
137                 } else {
138                         omap_cfg_reg(M18_24XX_KBR5);
139                         omap_cfg_reg(H19_24XX_KBC2);
140                         omap_cfg_reg(N19_24XX_KBC6);
141                 }
142                 omap_cfg_reg(R20_24XX_KBC0);
143                 omap_cfg_reg(M14_24XX_KBC1);
144                 omap_cfg_reg(V17_24XX_KBC3);
145                 omap_cfg_reg(P21_24XX_KBC4);
146                 omap_cfg_reg(L14_24XX_KBC5);
147         }
148 }
149 #else
150 static inline void omap_init_kp(void) {}
151 #endif
152
153 /*-------------------------------------------------------------------------*/
154 #if defined(CONFIG_OMAP_MCBSP) || defined(CONFIG_OMAP_MCBSP_MODULE)
155
156 static struct platform_device **omap_mcbsp_devices;
157
158 void omap_mcbsp_register_board_cfg(struct omap_mcbsp_platform_data *config,
159                                         int size)
160 {
161         int i;
162
163         omap_mcbsp_devices = kzalloc(size * sizeof(struct platform_device *),
164                                      GFP_KERNEL);
165         if (!omap_mcbsp_devices) {
166                 printk(KERN_ERR "Could not register McBSP devices\n");
167                 return;
168         }
169
170         for (i = 0; i < size; i++) {
171                 struct platform_device *new_mcbsp;
172                 int ret;
173
174                 new_mcbsp = platform_device_alloc("omap-mcbsp", i + 1);
175                 if (!new_mcbsp)
176                         continue;
177                 new_mcbsp->dev.platform_data = &config[i];
178                 ret = platform_device_add(new_mcbsp);
179                 if (ret) {
180                         platform_device_put(new_mcbsp);
181                         continue;
182                 }
183                 omap_mcbsp_devices[i] = new_mcbsp;
184         }
185 }
186
187 #else
188 void omap_mcbsp_register_board_cfg(struct omap_mcbsp_platform_data *config,
189                                         int size)
190 {  }
191 #endif
192
193 /*-------------------------------------------------------------------------*/
194
195 #if     defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) || \
196         defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE)
197
198 #if defined(CONFIG_ARCH_OMAP24XX) || defined(CONFIG_ARCH_OMAP34XX)
199 #define OMAP_MMC1_BASE          0x4809c000
200 #define OMAP_MMC1_END           (OMAP_MMC1_BASE + 0x1fc)
201 #define OMAP_MMC1_INT           INT_24XX_MMC_IRQ
202
203 #define OMAP_MMC2_BASE          0x480b4000
204 #define OMAP_MMC2_END           (OMAP_MMC2_BASE + 0x1fc)
205 #define OMAP_MMC2_INT           INT_24XX_MMC2_IRQ
206
207 #else
208
209 #define OMAP_MMC1_BASE          0xfffb7800
210 #define OMAP_MMC1_END           (OMAP_MMC1_BASE + 0x7f)
211 #define OMAP_MMC1_INT           INT_MMC
212
213 #define OMAP_MMC2_BASE          0xfffb7c00      /* omap16xx only */
214 #define OMAP_MMC2_END           (OMAP_MMC2_BASE + 0x7f)
215 #define OMAP_MMC2_INT           INT_1610_MMC2
216
217 #endif
218
219 static struct omap_mmc_platform_data mmc1_data;
220
221 static u64 mmc1_dmamask = 0xffffffff;
222
223 static struct resource mmc1_resources[] = {
224         {
225                 .start          = OMAP_MMC1_BASE,
226                 .end            = OMAP_MMC1_END,
227                 .flags          = IORESOURCE_MEM,
228         },
229         {
230                 .start          = OMAP_MMC1_INT,
231                 .flags          = IORESOURCE_IRQ,
232         },
233 };
234
235 static struct platform_device mmc_omap_device1 = {
236         .name           = "mmci-omap",
237         .id             = 1,
238         .dev = {
239                 .dma_mask       = &mmc1_dmamask,
240                 .platform_data  = &mmc1_data,
241         },
242         .num_resources  = ARRAY_SIZE(mmc1_resources),
243         .resource       = mmc1_resources,
244 };
245
246 #if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP2430) || \
247         defined(CONFIG_ARCH_OMAP34XX)
248
249 static struct omap_mmc_platform_data mmc2_data;
250
251 static u64 mmc2_dmamask = 0xffffffff;
252
253 static struct resource mmc2_resources[] = {
254         {
255                 .start          = OMAP_MMC2_BASE,
256                 .end            = OMAP_MMC2_END,
257                 .flags          = IORESOURCE_MEM,
258         },
259         {
260                 .start          = OMAP_MMC2_INT,
261                 .flags          = IORESOURCE_IRQ,
262         },
263 };
264
265 static struct platform_device mmc_omap_device2 = {
266         .name           = "mmci-omap",
267         .id             = 2,
268         .dev = {
269                 .dma_mask       = &mmc2_dmamask,
270                 .platform_data  = &mmc2_data,
271         },
272         .num_resources  = ARRAY_SIZE(mmc2_resources),
273         .resource       = mmc2_resources,
274 };
275 #endif
276
277 static inline void omap_init_mmc_conf(const struct omap_mmc_config *mmc_conf)
278 {
279         if (cpu_is_omap2430() || cpu_is_omap34xx())
280                 return;
281
282         if (mmc_conf->mmc[0].enabled) {
283                 if (cpu_is_omap24xx()) {
284                         omap_cfg_reg(H18_24XX_MMC_CMD);
285                         omap_cfg_reg(H15_24XX_MMC_CLKI);
286                         omap_cfg_reg(G19_24XX_MMC_CLKO);
287                         omap_cfg_reg(F20_24XX_MMC_DAT0);
288                         omap_cfg_reg(F19_24XX_MMC_DAT_DIR0);
289                         omap_cfg_reg(G18_24XX_MMC_CMD_DIR);
290                 } else {
291                         omap_cfg_reg(MMC_CMD);
292                         omap_cfg_reg(MMC_CLK);
293                         omap_cfg_reg(MMC_DAT0);
294                         if (cpu_is_omap1710()) {
295                                 omap_cfg_reg(M15_1710_MMC_CLKI);
296                                 omap_cfg_reg(P19_1710_MMC_CMDDIR);
297                                 omap_cfg_reg(P20_1710_MMC_DATDIR0);
298                         }
299                 }
300                 if (mmc_conf->mmc[0].wire4) {
301                         if (cpu_is_omap24xx()) {
302                                 omap_cfg_reg(H14_24XX_MMC_DAT1);
303                                 omap_cfg_reg(E19_24XX_MMC_DAT2);
304                                 omap_cfg_reg(D19_24XX_MMC_DAT3);
305                                 omap_cfg_reg(E20_24XX_MMC_DAT_DIR1);
306                                 omap_cfg_reg(F18_24XX_MMC_DAT_DIR2);
307                                 omap_cfg_reg(E18_24XX_MMC_DAT_DIR3);
308                         } else {
309                                 omap_cfg_reg(MMC_DAT1);
310                                 /* NOTE:  DAT2 can be on W10 (here) or M15 */
311                                 if (!mmc_conf->mmc[0].nomux)
312                                         omap_cfg_reg(MMC_DAT2);
313                                 omap_cfg_reg(MMC_DAT3);
314                         }
315                 }
316         }
317
318 #ifdef  CONFIG_ARCH_OMAP16XX
319         /* block 2 is on newer chips, and has many pinout options */
320         if (mmc_conf->mmc[1].enabled) {
321                 if (!mmc_conf->mmc[1].nomux) {
322                         omap_cfg_reg(Y8_1610_MMC2_CMD);
323                         omap_cfg_reg(Y10_1610_MMC2_CLK);
324                         omap_cfg_reg(R18_1610_MMC2_CLKIN);
325                         omap_cfg_reg(W8_1610_MMC2_DAT0);
326                         if (mmc_conf->mmc[1].wire4) {
327                                 omap_cfg_reg(V8_1610_MMC2_DAT1);
328                                 omap_cfg_reg(W15_1610_MMC2_DAT2);
329                                 omap_cfg_reg(R10_1610_MMC2_DAT3);
330                         }
331
332                         /* These are needed for the level shifter */
333                         omap_cfg_reg(V9_1610_MMC2_CMDDIR);
334                         omap_cfg_reg(V5_1610_MMC2_DATDIR0);
335                         omap_cfg_reg(W19_1610_MMC2_DATDIR1);
336                 }
337
338                 /* Feedback clock must be set on OMAP-1710 MMC2 */
339                 if (cpu_is_omap1710())
340                         omap_writel(omap_readl(MOD_CONF_CTRL_1) | (1 << 24),
341                                      MOD_CONF_CTRL_1);
342         }
343 #endif
344 }
345
346 static void __init omap_init_mmc(void)
347 {
348         const struct omap_mmc_config    *mmc_conf;
349
350         /* NOTE:  assumes MMC was never (wrongly) enabled */
351         mmc_conf = omap_get_config(OMAP_TAG_MMC, struct omap_mmc_config);
352         if (!mmc_conf)
353                 return;
354
355         omap_init_mmc_conf(mmc_conf);
356
357         if (mmc_conf->mmc[0].enabled) {
358                 mmc1_data.conf = mmc_conf->mmc[0];
359                 (void) platform_device_register(&mmc_omap_device1);
360         }
361
362 #if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP2430) || \
363         defined(CONFIG_ARCH_OMAP34XX)
364         if (mmc_conf->mmc[1].enabled) {
365                 mmc2_data.conf = mmc_conf->mmc[1];
366                 (void) platform_device_register(&mmc_omap_device2);
367         }
368 #endif
369 }
370
371 void omap_set_mmc_info(int host, const struct omap_mmc_platform_data *info)
372 {
373         switch (host) {
374         case 1:
375                 mmc1_data = *info;
376                 break;
377 #if defined(CONFIG_ARCH_OMAP16XX) || defined(CONFIG_ARCH_OMAP2430) || \
378         defined(CONFIG_ARCH_OMAP34XX)
379         case 2:
380                 mmc2_data = *info;
381                 break;
382 #endif
383         default:
384                 BUG();
385         }
386 }
387
388 #else
389 static inline void omap_init_mmc(void) {}
390 void omap_set_mmc_info(int host, const struct omap_mmc_platform_data *info) {}
391 #endif
392
393 /*-------------------------------------------------------------------------*/
394
395 /* Numbering for the SPI-capable controllers when used for SPI:
396  * spi          = 1
397  * uwire        = 2
398  * mmc1..2      = 3..4
399  * mcbsp1..3    = 5..7
400  */
401
402 #if defined(CONFIG_SPI_OMAP_UWIRE) || defined(CONFIG_SPI_OMAP_UWIRE_MODULE)
403
404 #define OMAP_UWIRE_BASE         0xfffb3000
405
406 static struct resource uwire_resources[] = {
407         {
408                 .start          = OMAP_UWIRE_BASE,
409                 .end            = OMAP_UWIRE_BASE + 0x20,
410                 .flags          = IORESOURCE_MEM,
411         },
412 };
413
414 static struct platform_device omap_uwire_device = {
415         .name      = "omap_uwire",
416         .id          = -1,
417         .num_resources  = ARRAY_SIZE(uwire_resources),
418         .resource       = uwire_resources,
419 };
420
421 static void omap_init_uwire(void)
422 {
423         /* FIXME define and use a boot tag; not all boards will be hooking
424          * up devices to the microwire controller, and multi-board configs
425          * mean that CONFIG_SPI_OMAP_UWIRE may be configured anyway...
426          */
427
428         /* board-specific code must configure chipselects (only a few
429          * are normally used) and SCLK/SDI/SDO (each has two choices).
430          */
431         (void) platform_device_register(&omap_uwire_device);
432 }
433 #else
434 static inline void omap_init_uwire(void) {}
435 #endif
436
437 /*-------------------------------------------------------------------------*/
438
439 #if     defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE)
440
441 static struct resource wdt_resources[] = {
442         {
443                 .flags          = IORESOURCE_MEM,
444         },
445 };
446
447 static struct platform_device omap_wdt_device = {
448         .name      = "omap_wdt",
449         .id          = -1,
450         .num_resources  = ARRAY_SIZE(wdt_resources),
451         .resource       = wdt_resources,
452 };
453
454 static void omap_init_wdt(void)
455 {
456         if (cpu_is_omap16xx())
457                 wdt_resources[0].start = 0xfffeb000;
458         else if (cpu_is_omap2420())
459                 wdt_resources[0].start = 0x48022000; /* WDT2 */
460         else if (cpu_is_omap2430())
461                 wdt_resources[0].start = 0x49016000; /* WDT2 */
462         else if (cpu_is_omap343x())
463                 wdt_resources[0].start = 0x48314000; /* WDT2 */
464         else
465                 return;
466
467         wdt_resources[0].end = wdt_resources[0].start + 0x4f;
468
469         (void) platform_device_register(&omap_wdt_device);
470 }
471 #else
472 static inline void omap_init_wdt(void) {}
473 #endif
474
475 /*-------------------------------------------------------------------------*/
476
477 #if defined(CONFIG_HW_RANDOM_OMAP) || defined(CONFIG_HW_RANDOM_OMAP_MODULE)
478
479 #ifdef CONFIG_ARCH_OMAP24XX
480 #define OMAP_RNG_BASE           0x480A0000
481 #else
482 #define OMAP_RNG_BASE           0xfffe5000
483 #endif
484
485 static struct resource rng_resources[] = {
486         {
487                 .start          = OMAP_RNG_BASE,
488                 .end            = OMAP_RNG_BASE + 0x4f,
489                 .flags          = IORESOURCE_MEM,
490         },
491 };
492
493 static struct platform_device omap_rng_device = {
494         .name      = "omap_rng",
495         .id          = -1,
496         .num_resources  = ARRAY_SIZE(rng_resources),
497         .resource       = rng_resources,
498 };
499
500 static void omap_init_rng(void)
501 {
502         (void) platform_device_register(&omap_rng_device);
503 }
504 #else
505 static inline void omap_init_rng(void) {}
506 #endif
507
508 /*
509  * This gets called after board-specific INIT_MACHINE, and initializes most
510  * on-chip peripherals accessible on this board (except for few like USB):
511  *
512  *  (a) Does any "standard config" pin muxing needed.  Board-specific
513  *      code will have muxed GPIO pins and done "nonstandard" setup;
514  *      that code could live in the boot loader.
515  *  (b) Populating board-specific platform_data with the data drivers
516  *      rely on to handle wiring variations.
517  *  (c) Creating platform devices as meaningful on this board and
518  *      with this kernel configuration.
519  *
520  * Claiming GPIOs, and setting their direction and initial values, is the
521  * responsibility of the device drivers.  So is responding to probe().
522  *
523  * Board-specific knowlege like creating devices or pin setup is to be
524  * kept out of drivers as much as possible.  In particular, pin setup
525  * may be handled by the boot loader, and drivers should expect it will
526  * normally have been done by the time they're probed.
527  */
528 static int __init omap_init_devices(void)
529 {
530         /* please keep these calls, and their implementations above,
531          * in alphabetical order so they're easier to sort through.
532          */
533         omap_init_dsp();
534         omap_init_kp();
535         omap_init_mmc();
536         omap_init_uwire();
537         omap_init_wdt();
538         omap_init_rng();
539         return 0;
540 }
541 arch_initcall(omap_init_devices);