Merge branch 'audit.b51' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit...
[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
17 #include <asm/hardware.h>
18 #include <asm/io.h>
19 #include <asm/mach-types.h>
20 #include <asm/mach/map.h>
21
22 #include <asm/arch/tc.h>
23 #include <asm/arch/board.h>
24 #include <asm/arch/mux.h>
25 #include <asm/arch/gpio.h>
26 #include <asm/arch/menelaus.h>
27
28 #if     defined(CONFIG_OMAP_DSP) || defined(CONFIG_OMAP_DSP_MODULE)
29
30 #include "../plat-omap/dsp/dsp_common.h"
31
32 static struct dsp_platform_data dsp_pdata = {
33         .kdev_list = LIST_HEAD_INIT(dsp_pdata.kdev_list),
34 };
35
36 static struct resource omap_dsp_resources[] = {
37         {
38                 .name   = "dsp_mmu",
39                 .start  = -1,
40                 .flags  = IORESOURCE_IRQ,
41         },
42 };
43
44 static struct platform_device omap_dsp_device = {
45         .name           = "dsp",
46         .id             = -1,
47         .num_resources  = ARRAY_SIZE(omap_dsp_resources),
48         .resource       = omap_dsp_resources,
49         .dev = {
50                 .platform_data = &dsp_pdata,
51         },
52 };
53
54 static inline void omap_init_dsp(void)
55 {
56         struct resource *res;
57         int irq;
58
59         if (cpu_is_omap15xx())
60                 irq = INT_1510_DSP_MMU;
61         else if (cpu_is_omap16xx())
62                 irq = INT_1610_DSP_MMU;
63         else if (cpu_is_omap24xx())
64                 irq = INT_24XX_DSP_MMU;
65
66         res = platform_get_resource_byname(&omap_dsp_device,
67                                            IORESOURCE_IRQ, "dsp_mmu");
68         res->start = irq;
69
70         platform_device_register(&omap_dsp_device);
71 }
72
73 int dsp_kfunc_device_register(struct dsp_kfunc_device *kdev)
74 {
75         static DEFINE_MUTEX(dsp_pdata_lock);
76
77         mutex_init(&kdev->lock);
78
79         mutex_lock(&dsp_pdata_lock);
80         list_add_tail(&kdev->entry, &dsp_pdata.kdev_list);
81         mutex_unlock(&dsp_pdata_lock);
82
83         return 0;
84 }
85 EXPORT_SYMBOL(dsp_kfunc_device_register);
86
87 #else
88 static inline void omap_init_dsp(void) { }
89 #endif  /* CONFIG_OMAP_DSP */
90
91 /*-------------------------------------------------------------------------*/
92 #if     defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE)
93
94 static void omap_init_kp(void)
95 {
96         if (machine_is_omap_h2() || machine_is_omap_h3()) {
97                 omap_cfg_reg(F18_1610_KBC0);
98                 omap_cfg_reg(D20_1610_KBC1);
99                 omap_cfg_reg(D19_1610_KBC2);
100                 omap_cfg_reg(E18_1610_KBC3);
101                 omap_cfg_reg(C21_1610_KBC4);
102
103                 omap_cfg_reg(G18_1610_KBR0);
104                 omap_cfg_reg(F19_1610_KBR1);
105                 omap_cfg_reg(H14_1610_KBR2);
106                 omap_cfg_reg(E20_1610_KBR3);
107                 omap_cfg_reg(E19_1610_KBR4);
108                 omap_cfg_reg(N19_1610_KBR5);
109         } else if (machine_is_omap_perseus2() || machine_is_omap_fsample()) {
110                 omap_cfg_reg(E2_730_KBR0);
111                 omap_cfg_reg(J7_730_KBR1);
112                 omap_cfg_reg(E1_730_KBR2);
113                 omap_cfg_reg(F3_730_KBR3);
114                 omap_cfg_reg(D2_730_KBR4);
115
116                 omap_cfg_reg(C2_730_KBC0);
117                 omap_cfg_reg(D3_730_KBC1);
118                 omap_cfg_reg(E4_730_KBC2);
119                 omap_cfg_reg(F4_730_KBC3);
120                 omap_cfg_reg(E3_730_KBC4);
121         } else if (machine_is_omap_h4()) {
122                 omap_cfg_reg(T19_24XX_KBR0);
123                 omap_cfg_reg(R19_24XX_KBR1);
124                 omap_cfg_reg(V18_24XX_KBR2);
125                 omap_cfg_reg(M21_24XX_KBR3);
126                 omap_cfg_reg(E5__24XX_KBR4);
127                 if (omap_has_menelaus()) {
128                         omap_cfg_reg(B3__24XX_KBR5);
129                         omap_cfg_reg(AA4_24XX_KBC2);
130                         omap_cfg_reg(B13_24XX_KBC6);
131                 } else {
132                         omap_cfg_reg(M18_24XX_KBR5);
133                         omap_cfg_reg(H19_24XX_KBC2);
134                         omap_cfg_reg(N19_24XX_KBC6);
135                 }
136                 omap_cfg_reg(R20_24XX_KBC0);
137                 omap_cfg_reg(M14_24XX_KBC1);
138                 omap_cfg_reg(V17_24XX_KBC3);
139                 omap_cfg_reg(P21_24XX_KBC4);
140                 omap_cfg_reg(L14_24XX_KBC5);
141         }
142 }
143 #else
144 static inline void omap_init_kp(void) {}
145 #endif
146
147 /*-------------------------------------------------------------------------*/
148
149 #if     defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
150
151 #ifdef CONFIG_ARCH_OMAP24XX
152 #define OMAP_MMC1_BASE          0x4809c000
153 #define OMAP_MMC1_INT           INT_24XX_MMC_IRQ
154 #else
155 #define OMAP_MMC1_BASE          0xfffb7800
156 #define OMAP_MMC1_INT           INT_MMC
157 #endif
158 #define OMAP_MMC2_BASE          0xfffb7c00      /* omap16xx only */
159
160 static struct omap_mmc_conf mmc1_conf;
161
162 static u64 mmc1_dmamask = 0xffffffff;
163
164 static struct resource mmc1_resources[] = {
165         {
166                 .start          = OMAP_MMC1_BASE,
167                 .end            = OMAP_MMC1_BASE + 0x7f,
168                 .flags          = IORESOURCE_MEM,
169         },
170         {
171                 .start          = OMAP_MMC1_INT,
172                 .flags          = IORESOURCE_IRQ,
173         },
174 };
175
176 static struct platform_device mmc_omap_device1 = {
177         .name           = "mmci-omap",
178         .id             = 1,
179         .dev = {
180                 .dma_mask       = &mmc1_dmamask,
181                 .platform_data  = &mmc1_conf,
182         },
183         .num_resources  = ARRAY_SIZE(mmc1_resources),
184         .resource       = mmc1_resources,
185 };
186
187 #ifdef  CONFIG_ARCH_OMAP16XX
188
189 static struct omap_mmc_conf mmc2_conf;
190
191 static u64 mmc2_dmamask = 0xffffffff;
192
193 static struct resource mmc2_resources[] = {
194         {
195                 .start          = OMAP_MMC2_BASE,
196                 .end            = OMAP_MMC2_BASE + 0x7f,
197                 .flags          = IORESOURCE_MEM,
198         },
199         {
200                 .start          = INT_1610_MMC2,
201                 .flags          = IORESOURCE_IRQ,
202         },
203 };
204
205 static struct platform_device mmc_omap_device2 = {
206         .name           = "mmci-omap",
207         .id             = 2,
208         .dev = {
209                 .dma_mask       = &mmc2_dmamask,
210                 .platform_data  = &mmc2_conf,
211         },
212         .num_resources  = ARRAY_SIZE(mmc2_resources),
213         .resource       = mmc2_resources,
214 };
215 #endif
216
217 static void __init omap_init_mmc(void)
218 {
219         const struct omap_mmc_config    *mmc_conf;
220         const struct omap_mmc_conf      *mmc;
221
222         /* NOTE:  assumes MMC was never (wrongly) enabled */
223         mmc_conf = omap_get_config(OMAP_TAG_MMC, struct omap_mmc_config);
224         if (!mmc_conf)
225                 return;
226
227         /* block 1 is always available and has just one pinout option */
228         mmc = &mmc_conf->mmc[0];
229         if (mmc->enabled) {
230                 if (cpu_is_omap24xx()) {
231                         omap_cfg_reg(H18_24XX_MMC_CMD);
232                         omap_cfg_reg(H15_24XX_MMC_CLKI);
233                         omap_cfg_reg(G19_24XX_MMC_CLKO);
234                         omap_cfg_reg(F20_24XX_MMC_DAT0);
235                         omap_cfg_reg(F19_24XX_MMC_DAT_DIR0);
236                         omap_cfg_reg(G18_24XX_MMC_CMD_DIR);
237                 } else {
238                         omap_cfg_reg(MMC_CMD);
239                         omap_cfg_reg(MMC_CLK);
240                         omap_cfg_reg(MMC_DAT0);
241                         if (cpu_is_omap1710()) {
242                                 omap_cfg_reg(M15_1710_MMC_CLKI);
243                                 omap_cfg_reg(P19_1710_MMC_CMDDIR);
244                                 omap_cfg_reg(P20_1710_MMC_DATDIR0);
245                         }
246                 }
247                 if (mmc->wire4) {
248                         if (cpu_is_omap24xx()) {
249                                 omap_cfg_reg(H14_24XX_MMC_DAT1);
250                                 omap_cfg_reg(E19_24XX_MMC_DAT2);
251                                 omap_cfg_reg(D19_24XX_MMC_DAT3);
252                                 omap_cfg_reg(E20_24XX_MMC_DAT_DIR1);
253                                 omap_cfg_reg(F18_24XX_MMC_DAT_DIR2);
254                                 omap_cfg_reg(E18_24XX_MMC_DAT_DIR3);
255                         } else {
256                                 omap_cfg_reg(MMC_DAT1);
257                                 /* NOTE:  DAT2 can be on W10 (here) or M15 */
258                                 if (!mmc->nomux)
259                                         omap_cfg_reg(MMC_DAT2);
260                                 omap_cfg_reg(MMC_DAT3);
261                         }
262                 }
263                 mmc1_conf = *mmc;
264                 (void) platform_device_register(&mmc_omap_device1);
265         }
266
267 #ifdef  CONFIG_ARCH_OMAP16XX
268         /* block 2 is on newer chips, and has many pinout options */
269         mmc = &mmc_conf->mmc[1];
270         if (mmc->enabled) {
271                 if (!mmc->nomux) {
272                         omap_cfg_reg(Y8_1610_MMC2_CMD);
273                         omap_cfg_reg(Y10_1610_MMC2_CLK);
274                         omap_cfg_reg(R18_1610_MMC2_CLKIN);
275                         omap_cfg_reg(W8_1610_MMC2_DAT0);
276                         if (mmc->wire4) {
277                                 omap_cfg_reg(V8_1610_MMC2_DAT1);
278                                 omap_cfg_reg(W15_1610_MMC2_DAT2);
279                                 omap_cfg_reg(R10_1610_MMC2_DAT3);
280                         }
281
282                         /* These are needed for the level shifter */
283                         omap_cfg_reg(V9_1610_MMC2_CMDDIR);
284                         omap_cfg_reg(V5_1610_MMC2_DATDIR0);
285                         omap_cfg_reg(W19_1610_MMC2_DATDIR1);
286                 }
287
288                 /* Feedback clock must be set on OMAP-1710 MMC2 */
289                 if (cpu_is_omap1710())
290                         omap_writel(omap_readl(MOD_CONF_CTRL_1) | (1 << 24),
291                                      MOD_CONF_CTRL_1);
292                 mmc2_conf = *mmc;
293                 (void) platform_device_register(&mmc_omap_device2);
294         }
295 #endif
296         return;
297 }
298 #else
299 static inline void omap_init_mmc(void) {}
300 #endif
301
302 /*-------------------------------------------------------------------------*/
303
304 /* Numbering for the SPI-capable controllers when used for SPI:
305  * spi          = 1
306  * uwire        = 2
307  * mmc1..2      = 3..4
308  * mcbsp1..3    = 5..7
309  */
310
311 #if defined(CONFIG_SPI_OMAP_UWIRE) || defined(CONFIG_SPI_OMAP_UWIRE_MODULE)
312
313 #define OMAP_UWIRE_BASE         0xfffb3000
314
315 static struct resource uwire_resources[] = {
316         {
317                 .start          = OMAP_UWIRE_BASE,
318                 .end            = OMAP_UWIRE_BASE + 0x20,
319                 .flags          = IORESOURCE_MEM,
320         },
321 };
322
323 static struct platform_device omap_uwire_device = {
324         .name      = "omap_uwire",
325         .id          = -1,
326         .num_resources  = ARRAY_SIZE(uwire_resources),
327         .resource       = uwire_resources,
328 };
329
330 static void omap_init_uwire(void)
331 {
332         /* FIXME define and use a boot tag; not all boards will be hooking
333          * up devices to the microwire controller, and multi-board configs
334          * mean that CONFIG_SPI_OMAP_UWIRE may be configured anyway...
335          */
336
337         /* board-specific code must configure chipselects (only a few
338          * are normally used) and SCLK/SDI/SDO (each has two choices).
339          */
340         (void) platform_device_register(&omap_uwire_device);
341 }
342 #else
343 static inline void omap_init_uwire(void) {}
344 #endif
345
346 /*-------------------------------------------------------------------------*/
347
348 #if     defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE)
349
350 #ifdef CONFIG_ARCH_OMAP24XX
351 #define OMAP_WDT_BASE           0x48022000
352 #else
353 #define OMAP_WDT_BASE           0xfffeb000
354 #endif
355
356 static struct resource wdt_resources[] = {
357         {
358                 .start          = OMAP_WDT_BASE,
359                 .end            = OMAP_WDT_BASE + 0x4f,
360                 .flags          = IORESOURCE_MEM,
361         },
362 };
363
364 static struct platform_device omap_wdt_device = {
365         .name      = "omap_wdt",
366         .id          = -1,
367         .num_resources  = ARRAY_SIZE(wdt_resources),
368         .resource       = wdt_resources,
369 };
370
371 static void omap_init_wdt(void)
372 {
373         (void) platform_device_register(&omap_wdt_device);
374 }
375 #else
376 static inline void omap_init_wdt(void) {}
377 #endif
378
379 /*-------------------------------------------------------------------------*/
380
381 #if defined(CONFIG_HW_RANDOM_OMAP) || defined(CONFIG_HW_RANDOM_OMAP_MODULE)
382
383 #ifdef CONFIG_ARCH_OMAP24XX
384 #define OMAP_RNG_BASE           0x480A0000
385 #else
386 #define OMAP_RNG_BASE           0xfffe5000
387 #endif
388
389 static struct resource rng_resources[] = {
390         {
391                 .start          = OMAP_RNG_BASE,
392                 .end            = OMAP_RNG_BASE + 0x4f,
393                 .flags          = IORESOURCE_MEM,
394         },
395 };
396
397 static struct platform_device omap_rng_device = {
398         .name      = "omap_rng",
399         .id          = -1,
400         .num_resources  = ARRAY_SIZE(rng_resources),
401         .resource       = rng_resources,
402 };
403
404 static void omap_init_rng(void)
405 {
406         (void) platform_device_register(&omap_rng_device);
407 }
408 #else
409 static inline void omap_init_rng(void) {}
410 #endif
411
412 /*
413  * This gets called after board-specific INIT_MACHINE, and initializes most
414  * on-chip peripherals accessible on this board (except for few like USB):
415  *
416  *  (a) Does any "standard config" pin muxing needed.  Board-specific
417  *      code will have muxed GPIO pins and done "nonstandard" setup;
418  *      that code could live in the boot loader.
419  *  (b) Populating board-specific platform_data with the data drivers
420  *      rely on to handle wiring variations.
421  *  (c) Creating platform devices as meaningful on this board and
422  *      with this kernel configuration.
423  *
424  * Claiming GPIOs, and setting their direction and initial values, is the
425  * responsibility of the device drivers.  So is responding to probe().
426  *
427  * Board-specific knowlege like creating devices or pin setup is to be
428  * kept out of drivers as much as possible.  In particular, pin setup
429  * may be handled by the boot loader, and drivers should expect it will
430  * normally have been done by the time they're probed.
431  */
432 static int __init omap_init_devices(void)
433 {
434 /*
435  * Need to enable relevant once for 2430 SDP
436  */
437 #ifndef CONFIG_MACH_OMAP_2430SDP
438         /* please keep these calls, and their implementations above,
439          * in alphabetical order so they're easier to sort through.
440          */
441         omap_init_dsp();
442         omap_init_kp();
443         omap_init_mmc();
444         omap_init_uwire();
445         omap_init_wdt();
446         omap_init_rng();
447 #endif
448         return 0;
449 }
450 arch_initcall(omap_init_devices);