Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
[pandora-kernel.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 #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 <plat/tc.h>
23 #include <plat/control.h>
24 #include <plat/board.h>
25 #include <plat/mmc.h>
26 #include <plat/mux.h>
27 #include <mach/gpio.h>
28 #include <plat/menelaus.h>
29 #include <plat/mcbsp.h>
30 #include <plat/dsp_common.h>
31 #include <plat/omap44xx.h>
32
33 #if     defined(CONFIG_OMAP_DSP) || defined(CONFIG_OMAP_DSP_MODULE)
34
35 static struct dsp_platform_data dsp_pdata = {
36         .kdev_list = LIST_HEAD_INIT(dsp_pdata.kdev_list),
37 };
38
39 static struct resource omap_dsp_resources[] = {
40         {
41                 .name   = "dsp_mmu",
42                 .start  = -1,
43                 .flags  = IORESOURCE_IRQ,
44         },
45 };
46
47 static struct platform_device omap_dsp_device = {
48         .name           = "dsp",
49         .id             = -1,
50         .num_resources  = ARRAY_SIZE(omap_dsp_resources),
51         .resource       = omap_dsp_resources,
52         .dev = {
53                 .platform_data = &dsp_pdata,
54         },
55 };
56
57 static inline void omap_init_dsp(void)
58 {
59         struct resource *res;
60         int irq;
61
62         if (cpu_is_omap15xx())
63                 irq = INT_1510_DSP_MMU;
64         else if (cpu_is_omap16xx())
65                 irq = INT_1610_DSP_MMU;
66         else if (cpu_is_omap24xx())
67                 irq = INT_24XX_DSP_MMU;
68
69         res = platform_get_resource_byname(&omap_dsp_device,
70                                            IORESOURCE_IRQ, "dsp_mmu");
71         res->start = irq;
72
73         platform_device_register(&omap_dsp_device);
74 }
75
76 int dsp_kfunc_device_register(struct dsp_kfunc_device *kdev)
77 {
78         static DEFINE_MUTEX(dsp_pdata_lock);
79
80         spin_lock_init(&kdev->lock);
81
82         mutex_lock(&dsp_pdata_lock);
83         list_add_tail(&kdev->entry, &dsp_pdata.kdev_list);
84         mutex_unlock(&dsp_pdata_lock);
85
86         return 0;
87 }
88 EXPORT_SYMBOL(dsp_kfunc_device_register);
89
90 #else
91 static inline void omap_init_dsp(void) { }
92 #endif  /* CONFIG_OMAP_DSP */
93
94 /*-------------------------------------------------------------------------*/
95 #if     defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE)
96
97 static void omap_init_kp(void)
98 {
99         /* 2430 and 34xx keypad is on TWL4030 */
100         if (cpu_is_omap2430() || cpu_is_omap34xx())
101                 return;
102
103         if (machine_is_omap_h2() || machine_is_omap_h3()) {
104                 omap_cfg_reg(F18_1610_KBC0);
105                 omap_cfg_reg(D20_1610_KBC1);
106                 omap_cfg_reg(D19_1610_KBC2);
107                 omap_cfg_reg(E18_1610_KBC3);
108                 omap_cfg_reg(C21_1610_KBC4);
109
110                 omap_cfg_reg(G18_1610_KBR0);
111                 omap_cfg_reg(F19_1610_KBR1);
112                 omap_cfg_reg(H14_1610_KBR2);
113                 omap_cfg_reg(E20_1610_KBR3);
114                 omap_cfg_reg(E19_1610_KBR4);
115                 omap_cfg_reg(N19_1610_KBR5);
116         } else if (machine_is_omap_perseus2() || machine_is_omap_fsample()) {
117                 omap_cfg_reg(E2_7XX_KBR0);
118                 omap_cfg_reg(J7_7XX_KBR1);
119                 omap_cfg_reg(E1_7XX_KBR2);
120                 omap_cfg_reg(F3_7XX_KBR3);
121                 omap_cfg_reg(D2_7XX_KBR4);
122
123                 omap_cfg_reg(C2_7XX_KBC0);
124                 omap_cfg_reg(D3_7XX_KBC1);
125                 omap_cfg_reg(E4_7XX_KBC2);
126                 omap_cfg_reg(F4_7XX_KBC3);
127                 omap_cfg_reg(E3_7XX_KBC4);
128         } else if (machine_is_omap_h4()) {
129                 omap_cfg_reg(T19_24XX_KBR0);
130                 omap_cfg_reg(R19_24XX_KBR1);
131                 omap_cfg_reg(V18_24XX_KBR2);
132                 omap_cfg_reg(M21_24XX_KBR3);
133                 omap_cfg_reg(E5__24XX_KBR4);
134                 if (omap_has_menelaus()) {
135                         omap_cfg_reg(B3__24XX_KBR5);
136                         omap_cfg_reg(AA4_24XX_KBC2);
137                         omap_cfg_reg(B13_24XX_KBC6);
138                 } else {
139                         omap_cfg_reg(M18_24XX_KBR5);
140                         omap_cfg_reg(H19_24XX_KBC2);
141                         omap_cfg_reg(N19_24XX_KBC6);
142                 }
143                 omap_cfg_reg(R20_24XX_KBC0);
144                 omap_cfg_reg(M14_24XX_KBC1);
145                 omap_cfg_reg(V17_24XX_KBC3);
146                 omap_cfg_reg(P21_24XX_KBC4);
147                 omap_cfg_reg(L14_24XX_KBC5);
148         }
149 }
150 #else
151 static inline void omap_init_kp(void) {}
152 #endif
153
154 /*-------------------------------------------------------------------------*/
155 #if defined(CONFIG_OMAP_MCBSP) || defined(CONFIG_OMAP_MCBSP_MODULE)
156
157 static struct platform_device **omap_mcbsp_devices;
158
159 void omap_mcbsp_register_board_cfg(struct omap_mcbsp_platform_data *config,
160                                         int size)
161 {
162         int i;
163
164         omap_mcbsp_devices = kzalloc(size * sizeof(struct platform_device *),
165                                      GFP_KERNEL);
166         if (!omap_mcbsp_devices) {
167                 printk(KERN_ERR "Could not register McBSP devices\n");
168                 return;
169         }
170
171         for (i = 0; i < size; i++) {
172                 struct platform_device *new_mcbsp;
173                 int ret;
174
175                 new_mcbsp = platform_device_alloc("omap-mcbsp", i + 1);
176                 if (!new_mcbsp)
177                         continue;
178                 new_mcbsp->dev.platform_data = &config[i];
179                 ret = platform_device_add(new_mcbsp);
180                 if (ret) {
181                         platform_device_put(new_mcbsp);
182                         continue;
183                 }
184                 omap_mcbsp_devices[i] = new_mcbsp;
185         }
186 }
187
188 #else
189 void omap_mcbsp_register_board_cfg(struct omap_mcbsp_platform_data *config,
190                                         int size)
191 {  }
192 #endif
193
194 /*-------------------------------------------------------------------------*/
195
196 #if defined(CONFIG_SND_OMAP_SOC_MCPDM) || \
197                 defined(CONFIG_SND_OMAP_SOC_MCPDM_MODULE)
198
199 static struct resource mcpdm_resources[] = {
200         {
201                 .name           = "mcpdm_mem",
202                 .start          = OMAP44XX_MCPDM_BASE,
203                 .end            = OMAP44XX_MCPDM_BASE + SZ_4K,
204                 .flags          = IORESOURCE_MEM,
205         },
206         {
207                 .name           = "mcpdm_irq",
208                 .start          = OMAP44XX_IRQ_MCPDM,
209                 .end            = OMAP44XX_IRQ_MCPDM,
210                 .flags          = IORESOURCE_IRQ,
211         },
212 };
213
214 static struct platform_device omap_mcpdm_device = {
215         .name           = "omap-mcpdm",
216         .id             = -1,
217         .num_resources  = ARRAY_SIZE(mcpdm_resources),
218         .resource       = mcpdm_resources,
219 };
220
221 static void omap_init_mcpdm(void)
222 {
223         (void) platform_device_register(&omap_mcpdm_device);
224 }
225 #else
226 static inline void omap_init_mcpdm(void) {}
227 #endif
228
229 /*-------------------------------------------------------------------------*/
230
231 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) || \
232         defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE)
233
234 #define OMAP_MMC_NR_RES         2
235
236 /*
237  * Register MMC devices. Called from mach-omap1 and mach-omap2 device init.
238  */
239 int __init omap_mmc_add(const char *name, int id, unsigned long base,
240                                 unsigned long size, unsigned int irq,
241                                 struct omap_mmc_platform_data *data)
242 {
243         struct platform_device *pdev;
244         struct resource res[OMAP_MMC_NR_RES];
245         int ret;
246
247         pdev = platform_device_alloc(name, id);
248         if (!pdev)
249                 return -ENOMEM;
250
251         memset(res, 0, OMAP_MMC_NR_RES * sizeof(struct resource));
252         res[0].start = base;
253         res[0].end = base + size - 1;
254         res[0].flags = IORESOURCE_MEM;
255         res[1].start = res[1].end = irq;
256         res[1].flags = IORESOURCE_IRQ;
257
258         ret = platform_device_add_resources(pdev, res, ARRAY_SIZE(res));
259         if (ret == 0)
260                 ret = platform_device_add_data(pdev, data, sizeof(*data));
261         if (ret)
262                 goto fail;
263
264         ret = platform_device_add(pdev);
265         if (ret)
266                 goto fail;
267
268         /* return device handle to board setup code */
269         data->dev = &pdev->dev;
270         return 0;
271
272 fail:
273         platform_device_put(pdev);
274         return ret;
275 }
276
277 #endif
278
279 /*-------------------------------------------------------------------------*/
280
281 #if defined(CONFIG_HW_RANDOM_OMAP) || defined(CONFIG_HW_RANDOM_OMAP_MODULE)
282
283 #ifdef CONFIG_ARCH_OMAP2
284 #define OMAP_RNG_BASE           0x480A0000
285 #else
286 #define OMAP_RNG_BASE           0xfffe5000
287 #endif
288
289 static struct resource rng_resources[] = {
290         {
291                 .start          = OMAP_RNG_BASE,
292                 .end            = OMAP_RNG_BASE + 0x4f,
293                 .flags          = IORESOURCE_MEM,
294         },
295 };
296
297 static struct platform_device omap_rng_device = {
298         .name           = "omap_rng",
299         .id             = -1,
300         .num_resources  = ARRAY_SIZE(rng_resources),
301         .resource       = rng_resources,
302 };
303
304 static void omap_init_rng(void)
305 {
306         (void) platform_device_register(&omap_rng_device);
307 }
308 #else
309 static inline void omap_init_rng(void) {}
310 #endif
311
312 /*-------------------------------------------------------------------------*/
313
314 /* Numbering for the SPI-capable controllers when used for SPI:
315  * spi          = 1
316  * uwire        = 2
317  * mmc1..2      = 3..4
318  * mcbsp1..3    = 5..7
319  */
320
321 #if defined(CONFIG_SPI_OMAP_UWIRE) || defined(CONFIG_SPI_OMAP_UWIRE_MODULE)
322
323 #define OMAP_UWIRE_BASE         0xfffb3000
324
325 static struct resource uwire_resources[] = {
326         {
327                 .start          = OMAP_UWIRE_BASE,
328                 .end            = OMAP_UWIRE_BASE + 0x20,
329                 .flags          = IORESOURCE_MEM,
330         },
331 };
332
333 static struct platform_device omap_uwire_device = {
334         .name      = "omap_uwire",
335         .id          = -1,
336         .num_resources  = ARRAY_SIZE(uwire_resources),
337         .resource       = uwire_resources,
338 };
339
340 static void omap_init_uwire(void)
341 {
342         /* FIXME define and use a boot tag; not all boards will be hooking
343          * up devices to the microwire controller, and multi-board configs
344          * mean that CONFIG_SPI_OMAP_UWIRE may be configured anyway...
345          */
346
347         /* board-specific code must configure chipselects (only a few
348          * are normally used) and SCLK/SDI/SDO (each has two choices).
349          */
350         (void) platform_device_register(&omap_uwire_device);
351 }
352 #else
353 static inline void omap_init_uwire(void) {}
354 #endif
355
356 /*-------------------------------------------------------------------------*/
357
358 #if     defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE)
359
360 static struct resource wdt_resources[] = {
361         {
362                 .flags          = IORESOURCE_MEM,
363         },
364 };
365
366 static struct platform_device omap_wdt_device = {
367         .name      = "omap_wdt",
368         .id          = -1,
369         .num_resources  = ARRAY_SIZE(wdt_resources),
370         .resource       = wdt_resources,
371 };
372
373 static void omap_init_wdt(void)
374 {
375         if (cpu_is_omap16xx())
376                 wdt_resources[0].start = 0xfffeb000;
377         else if (cpu_is_omap2420())
378                 wdt_resources[0].start = 0x48022000; /* WDT2 */
379         else if (cpu_is_omap2430())
380                 wdt_resources[0].start = 0x49016000; /* WDT2 */
381         else if (cpu_is_omap343x())
382                 wdt_resources[0].start = 0x48314000; /* WDT2 */
383         else if (cpu_is_omap44xx())
384                 wdt_resources[0].start = 0x4a314000;
385         else
386                 return;
387
388         wdt_resources[0].end = wdt_resources[0].start + 0x4f;
389
390         (void) platform_device_register(&omap_wdt_device);
391 }
392 #else
393 static inline void omap_init_wdt(void) {}
394 #endif
395
396 /*
397  * This gets called after board-specific INIT_MACHINE, and initializes most
398  * on-chip peripherals accessible on this board (except for few like USB):
399  *
400  *  (a) Does any "standard config" pin muxing needed.  Board-specific
401  *      code will have muxed GPIO pins and done "nonstandard" setup;
402  *      that code could live in the boot loader.
403  *  (b) Populating board-specific platform_data with the data drivers
404  *      rely on to handle wiring variations.
405  *  (c) Creating platform devices as meaningful on this board and
406  *      with this kernel configuration.
407  *
408  * Claiming GPIOs, and setting their direction and initial values, is the
409  * responsibility of the device drivers.  So is responding to probe().
410  *
411  * Board-specific knowlege like creating devices or pin setup is to be
412  * kept out of drivers as much as possible.  In particular, pin setup
413  * may be handled by the boot loader, and drivers should expect it will
414  * normally have been done by the time they're probed.
415  */
416 static int __init omap_init_devices(void)
417 {
418         /* please keep these calls, and their implementations above,
419          * in alphabetical order so they're easier to sort through.
420          */
421         omap_init_dsp();
422         omap_init_kp();
423         omap_init_rng();
424         omap_init_mcpdm();
425         omap_init_uwire();
426         omap_init_wdt();
427         return 0;
428 }
429 arch_initcall(omap_init_devices);