Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzi...
[linux-3.10.git] / 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
17 #include <mach/hardware.h>
18 #include <asm/io.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/mux.h>
25 #include <mach/gpio.h>
26 #include <mach/menelaus.h>
27 #include <mach/mcbsp.h>
28
29 #if     defined(CONFIG_OMAP_DSP) || defined(CONFIG_OMAP_DSP_MODULE)
30
31 #include "../plat-omap/dsp/dsp_common.h"
32
33 static struct dsp_platform_data dsp_pdata = {
34         .kdev_list = LIST_HEAD_INIT(dsp_pdata.kdev_list),
35 };
36
37 static struct resource omap_dsp_resources[] = {
38         {
39                 .name   = "dsp_mmu",
40                 .start  = -1,
41                 .flags  = IORESOURCE_IRQ,
42         },
43 };
44
45 static struct platform_device omap_dsp_device = {
46         .name           = "dsp",
47         .id             = -1,
48         .num_resources  = ARRAY_SIZE(omap_dsp_resources),
49         .resource       = omap_dsp_resources,
50         .dev = {
51                 .platform_data = &dsp_pdata,
52         },
53 };
54
55 static inline void omap_init_dsp(void)
56 {
57         struct resource *res;
58         int irq;
59
60         if (cpu_is_omap15xx())
61                 irq = INT_1510_DSP_MMU;
62         else if (cpu_is_omap16xx())
63                 irq = INT_1610_DSP_MMU;
64         else if (cpu_is_omap24xx())
65                 irq = INT_24XX_DSP_MMU;
66
67         res = platform_get_resource_byname(&omap_dsp_device,
68                                            IORESOURCE_IRQ, "dsp_mmu");
69         res->start = irq;
70
71         platform_device_register(&omap_dsp_device);
72 }
73
74 int dsp_kfunc_device_register(struct dsp_kfunc_device *kdev)
75 {
76         static DEFINE_MUTEX(dsp_pdata_lock);
77
78         mutex_init(&kdev->lock);
79
80         mutex_lock(&dsp_pdata_lock);
81         list_add_tail(&kdev->entry, &dsp_pdata.kdev_list);
82         mutex_unlock(&dsp_pdata_lock);
83
84         return 0;
85 }
86 EXPORT_SYMBOL(dsp_kfunc_device_register);
87
88 #else
89 static inline void omap_init_dsp(void) { }
90 #endif  /* CONFIG_OMAP_DSP */
91
92 /*-------------------------------------------------------------------------*/
93 #if     defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE)
94
95 static void omap_init_kp(void)
96 {
97         if (machine_is_omap_h2() || machine_is_omap_h3()) {
98                 omap_cfg_reg(F18_1610_KBC0);
99                 omap_cfg_reg(D20_1610_KBC1);
100                 omap_cfg_reg(D19_1610_KBC2);
101                 omap_cfg_reg(E18_1610_KBC3);
102                 omap_cfg_reg(C21_1610_KBC4);
103
104                 omap_cfg_reg(G18_1610_KBR0);
105                 omap_cfg_reg(F19_1610_KBR1);
106                 omap_cfg_reg(H14_1610_KBR2);
107                 omap_cfg_reg(E20_1610_KBR3);
108                 omap_cfg_reg(E19_1610_KBR4);
109                 omap_cfg_reg(N19_1610_KBR5);
110         } else if (machine_is_omap_perseus2() || machine_is_omap_fsample()) {
111                 omap_cfg_reg(E2_730_KBR0);
112                 omap_cfg_reg(J7_730_KBR1);
113                 omap_cfg_reg(E1_730_KBR2);
114                 omap_cfg_reg(F3_730_KBR3);
115                 omap_cfg_reg(D2_730_KBR4);
116
117                 omap_cfg_reg(C2_730_KBC0);
118                 omap_cfg_reg(D3_730_KBC1);
119                 omap_cfg_reg(E4_730_KBC2);
120                 omap_cfg_reg(F4_730_KBC3);
121                 omap_cfg_reg(E3_730_KBC4);
122         } else if (machine_is_omap_h4()) {
123                 omap_cfg_reg(T19_24XX_KBR0);
124                 omap_cfg_reg(R19_24XX_KBR1);
125                 omap_cfg_reg(V18_24XX_KBR2);
126                 omap_cfg_reg(M21_24XX_KBR3);
127                 omap_cfg_reg(E5__24XX_KBR4);
128                 if (omap_has_menelaus()) {
129                         omap_cfg_reg(B3__24XX_KBR5);
130                         omap_cfg_reg(AA4_24XX_KBC2);
131                         omap_cfg_reg(B13_24XX_KBC6);
132                 } else {
133                         omap_cfg_reg(M18_24XX_KBR5);
134                         omap_cfg_reg(H19_24XX_KBC2);
135                         omap_cfg_reg(N19_24XX_KBC6);
136                 }
137                 omap_cfg_reg(R20_24XX_KBC0);
138                 omap_cfg_reg(M14_24XX_KBC1);
139                 omap_cfg_reg(V17_24XX_KBC3);
140                 omap_cfg_reg(P21_24XX_KBC4);
141                 omap_cfg_reg(L14_24XX_KBC5);
142         }
143 }
144 #else
145 static inline void omap_init_kp(void) {}
146 #endif
147
148 /*-------------------------------------------------------------------------*/
149 #if defined(CONFIG_OMAP_MCBSP) || defined(CONFIG_OMAP_MCBSP_MODULE)
150
151 static struct platform_device **omap_mcbsp_devices;
152
153 void omap_mcbsp_register_board_cfg(struct omap_mcbsp_platform_data *config,
154                                         int size)
155 {
156         int i;
157
158         if (size > OMAP_MAX_MCBSP_COUNT) {
159                 printk(KERN_WARNING "Registered too many McBSPs platform_data."
160                         " Using maximum (%d) available.\n",
161                         OMAP_MAX_MCBSP_COUNT);
162                 size = OMAP_MAX_MCBSP_COUNT;
163         }
164
165         omap_mcbsp_devices = kzalloc(size * sizeof(struct platform_device *),
166                                      GFP_KERNEL);
167         if (!omap_mcbsp_devices) {
168                 printk(KERN_ERR "Could not register McBSP devices\n");
169                 return;
170         }
171
172         for (i = 0; i < size; i++) {
173                 struct platform_device *new_mcbsp;
174                 int ret;
175
176                 new_mcbsp = platform_device_alloc("omap-mcbsp", i + 1);
177                 if (!new_mcbsp)
178                         continue;
179                 new_mcbsp->dev.platform_data = &config[i];
180                 ret = platform_device_add(new_mcbsp);
181                 if (ret) {
182                         platform_device_put(new_mcbsp);
183                         continue;
184                 }
185                 omap_mcbsp_devices[i] = new_mcbsp;
186         }
187 }
188
189 #else
190 void omap_mcbsp_register_board_cfg(struct omap_mcbsp_platform_data *config,
191                                         int size)
192 {  }
193 #endif
194
195 /*-------------------------------------------------------------------------*/
196
197 #if     defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
198
199 #ifdef CONFIG_ARCH_OMAP24XX
200 #define OMAP_MMC1_BASE          0x4809c000
201 #define OMAP_MMC1_INT           INT_24XX_MMC_IRQ
202 #else
203 #define OMAP_MMC1_BASE          0xfffb7800
204 #define OMAP_MMC1_INT           INT_MMC
205 #endif
206 #define OMAP_MMC2_BASE          0xfffb7c00      /* omap16xx only */
207
208 static struct omap_mmc_conf mmc1_conf;
209
210 static u64 mmc1_dmamask = 0xffffffff;
211
212 static struct resource mmc1_resources[] = {
213         {
214                 .start          = OMAP_MMC1_BASE,
215                 .end            = OMAP_MMC1_BASE + 0x7f,
216                 .flags          = IORESOURCE_MEM,
217         },
218         {
219                 .start          = OMAP_MMC1_INT,
220                 .flags          = IORESOURCE_IRQ,
221         },
222 };
223
224 static struct platform_device mmc_omap_device1 = {
225         .name           = "mmci-omap",
226         .id             = 1,
227         .dev = {
228                 .dma_mask       = &mmc1_dmamask,
229                 .platform_data  = &mmc1_conf,
230         },
231         .num_resources  = ARRAY_SIZE(mmc1_resources),
232         .resource       = mmc1_resources,
233 };
234
235 #ifdef  CONFIG_ARCH_OMAP16XX
236
237 static struct omap_mmc_conf mmc2_conf;
238
239 static u64 mmc2_dmamask = 0xffffffff;
240
241 static struct resource mmc2_resources[] = {
242         {
243                 .start          = OMAP_MMC2_BASE,
244                 .end            = OMAP_MMC2_BASE + 0x7f,
245                 .flags          = IORESOURCE_MEM,
246         },
247         {
248                 .start          = INT_1610_MMC2,
249                 .flags          = IORESOURCE_IRQ,
250         },
251 };
252
253 static struct platform_device mmc_omap_device2 = {
254         .name           = "mmci-omap",
255         .id             = 2,
256         .dev = {
257                 .dma_mask       = &mmc2_dmamask,
258                 .platform_data  = &mmc2_conf,
259         },
260         .num_resources  = ARRAY_SIZE(mmc2_resources),
261         .resource       = mmc2_resources,
262 };
263 #endif
264
265 static void __init omap_init_mmc(void)
266 {
267         const struct omap_mmc_config    *mmc_conf;
268         const struct omap_mmc_conf      *mmc;
269
270         /* NOTE:  assumes MMC was never (wrongly) enabled */
271         mmc_conf = omap_get_config(OMAP_TAG_MMC, struct omap_mmc_config);
272         if (!mmc_conf)
273                 return;
274
275         /* block 1 is always available and has just one pinout option */
276         mmc = &mmc_conf->mmc[0];
277         if (mmc->enabled) {
278                 if (cpu_is_omap24xx()) {
279                         omap_cfg_reg(H18_24XX_MMC_CMD);
280                         omap_cfg_reg(H15_24XX_MMC_CLKI);
281                         omap_cfg_reg(G19_24XX_MMC_CLKO);
282                         omap_cfg_reg(F20_24XX_MMC_DAT0);
283                         omap_cfg_reg(F19_24XX_MMC_DAT_DIR0);
284                         omap_cfg_reg(G18_24XX_MMC_CMD_DIR);
285                 } else {
286                         omap_cfg_reg(MMC_CMD);
287                         omap_cfg_reg(MMC_CLK);
288                         omap_cfg_reg(MMC_DAT0);
289                         if (cpu_is_omap1710()) {
290                                 omap_cfg_reg(M15_1710_MMC_CLKI);
291                                 omap_cfg_reg(P19_1710_MMC_CMDDIR);
292                                 omap_cfg_reg(P20_1710_MMC_DATDIR0);
293                         }
294                 }
295                 if (mmc->wire4) {
296                         if (cpu_is_omap24xx()) {
297                                 omap_cfg_reg(H14_24XX_MMC_DAT1);
298                                 omap_cfg_reg(E19_24XX_MMC_DAT2);
299                                 omap_cfg_reg(D19_24XX_MMC_DAT3);
300                                 omap_cfg_reg(E20_24XX_MMC_DAT_DIR1);
301                                 omap_cfg_reg(F18_24XX_MMC_DAT_DIR2);
302                                 omap_cfg_reg(E18_24XX_MMC_DAT_DIR3);
303                         } else {
304                                 omap_cfg_reg(MMC_DAT1);
305                                 /* NOTE:  DAT2 can be on W10 (here) or M15 */
306                                 if (!mmc->nomux)
307                                         omap_cfg_reg(MMC_DAT2);
308                                 omap_cfg_reg(MMC_DAT3);
309                         }
310                 }
311                 mmc1_conf = *mmc;
312                 (void) platform_device_register(&mmc_omap_device1);
313         }
314
315 #ifdef  CONFIG_ARCH_OMAP16XX
316         /* block 2 is on newer chips, and has many pinout options */
317         mmc = &mmc_conf->mmc[1];
318         if (mmc->enabled) {
319                 if (!mmc->nomux) {
320                         omap_cfg_reg(Y8_1610_MMC2_CMD);
321                         omap_cfg_reg(Y10_1610_MMC2_CLK);
322                         omap_cfg_reg(R18_1610_MMC2_CLKIN);
323                         omap_cfg_reg(W8_1610_MMC2_DAT0);
324                         if (mmc->wire4) {
325                                 omap_cfg_reg(V8_1610_MMC2_DAT1);
326                                 omap_cfg_reg(W15_1610_MMC2_DAT2);
327                                 omap_cfg_reg(R10_1610_MMC2_DAT3);
328                         }
329
330                         /* These are needed for the level shifter */
331                         omap_cfg_reg(V9_1610_MMC2_CMDDIR);
332                         omap_cfg_reg(V5_1610_MMC2_DATDIR0);
333                         omap_cfg_reg(W19_1610_MMC2_DATDIR1);
334                 }
335
336                 /* Feedback clock must be set on OMAP-1710 MMC2 */
337                 if (cpu_is_omap1710())
338                         omap_writel(omap_readl(MOD_CONF_CTRL_1) | (1 << 24),
339                                      MOD_CONF_CTRL_1);
340                 mmc2_conf = *mmc;
341                 (void) platform_device_register(&mmc_omap_device2);
342         }
343 #endif
344         return;
345 }
346 #else
347 static inline void omap_init_mmc(void) {}
348 #endif
349
350 /*-------------------------------------------------------------------------*/
351
352 /* Numbering for the SPI-capable controllers when used for SPI:
353  * spi          = 1
354  * uwire        = 2
355  * mmc1..2      = 3..4
356  * mcbsp1..3    = 5..7
357  */
358
359 #if defined(CONFIG_SPI_OMAP_UWIRE) || defined(CONFIG_SPI_OMAP_UWIRE_MODULE)
360
361 #define OMAP_UWIRE_BASE         0xfffb3000
362
363 static struct resource uwire_resources[] = {
364         {
365                 .start          = OMAP_UWIRE_BASE,
366                 .end            = OMAP_UWIRE_BASE + 0x20,
367                 .flags          = IORESOURCE_MEM,
368         },
369 };
370
371 static struct platform_device omap_uwire_device = {
372         .name      = "omap_uwire",
373         .id          = -1,
374         .num_resources  = ARRAY_SIZE(uwire_resources),
375         .resource       = uwire_resources,
376 };
377
378 static void omap_init_uwire(void)
379 {
380         /* FIXME define and use a boot tag; not all boards will be hooking
381          * up devices to the microwire controller, and multi-board configs
382          * mean that CONFIG_SPI_OMAP_UWIRE may be configured anyway...
383          */
384
385         /* board-specific code must configure chipselects (only a few
386          * are normally used) and SCLK/SDI/SDO (each has two choices).
387          */
388         (void) platform_device_register(&omap_uwire_device);
389 }
390 #else
391 static inline void omap_init_uwire(void) {}
392 #endif
393
394 /*-------------------------------------------------------------------------*/
395
396 #if     defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE)
397
398 #ifdef CONFIG_ARCH_OMAP24XX
399 #define OMAP_WDT_BASE           0x48022000
400 #else
401 #define OMAP_WDT_BASE           0xfffeb000
402 #endif
403
404 static struct resource wdt_resources[] = {
405         {
406                 .start          = OMAP_WDT_BASE,
407                 .end            = OMAP_WDT_BASE + 0x4f,
408                 .flags          = IORESOURCE_MEM,
409         },
410 };
411
412 static struct platform_device omap_wdt_device = {
413         .name      = "omap_wdt",
414         .id          = -1,
415         .num_resources  = ARRAY_SIZE(wdt_resources),
416         .resource       = wdt_resources,
417 };
418
419 static void omap_init_wdt(void)
420 {
421         (void) platform_device_register(&omap_wdt_device);
422 }
423 #else
424 static inline void omap_init_wdt(void) {}
425 #endif
426
427 /*-------------------------------------------------------------------------*/
428
429 #if defined(CONFIG_HW_RANDOM_OMAP) || defined(CONFIG_HW_RANDOM_OMAP_MODULE)
430
431 #ifdef CONFIG_ARCH_OMAP24XX
432 #define OMAP_RNG_BASE           0x480A0000
433 #else
434 #define OMAP_RNG_BASE           0xfffe5000
435 #endif
436
437 static struct resource rng_resources[] = {
438         {
439                 .start          = OMAP_RNG_BASE,
440                 .end            = OMAP_RNG_BASE + 0x4f,
441                 .flags          = IORESOURCE_MEM,
442         },
443 };
444
445 static struct platform_device omap_rng_device = {
446         .name      = "omap_rng",
447         .id          = -1,
448         .num_resources  = ARRAY_SIZE(rng_resources),
449         .resource       = rng_resources,
450 };
451
452 static void omap_init_rng(void)
453 {
454         (void) platform_device_register(&omap_rng_device);
455 }
456 #else
457 static inline void omap_init_rng(void) {}
458 #endif
459
460 /*
461  * This gets called after board-specific INIT_MACHINE, and initializes most
462  * on-chip peripherals accessible on this board (except for few like USB):
463  *
464  *  (a) Does any "standard config" pin muxing needed.  Board-specific
465  *      code will have muxed GPIO pins and done "nonstandard" setup;
466  *      that code could live in the boot loader.
467  *  (b) Populating board-specific platform_data with the data drivers
468  *      rely on to handle wiring variations.
469  *  (c) Creating platform devices as meaningful on this board and
470  *      with this kernel configuration.
471  *
472  * Claiming GPIOs, and setting their direction and initial values, is the
473  * responsibility of the device drivers.  So is responding to probe().
474  *
475  * Board-specific knowlege like creating devices or pin setup is to be
476  * kept out of drivers as much as possible.  In particular, pin setup
477  * may be handled by the boot loader, and drivers should expect it will
478  * normally have been done by the time they're probed.
479  */
480 static int __init omap_init_devices(void)
481 {
482 /*
483  * Need to enable relevant once for 2430 SDP
484  */
485 #ifndef CONFIG_MACH_OMAP_2430SDP
486         /* please keep these calls, and their implementations above,
487          * in alphabetical order so they're easier to sort through.
488          */
489         omap_init_dsp();
490         omap_init_kp();
491         omap_init_mmc();
492         omap_init_uwire();
493         omap_init_wdt();
494         omap_init_rng();
495 #endif
496         return 0;
497 }
498 arch_initcall(omap_init_devices);