Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux-2.6.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
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_7XX_KBR0);
117                 omap_cfg_reg(J7_7XX_KBR1);
118                 omap_cfg_reg(E1_7XX_KBR2);
119                 omap_cfg_reg(F3_7XX_KBR3);
120                 omap_cfg_reg(D2_7XX_KBR4);
121
122                 omap_cfg_reg(C2_7XX_KBC0);
123                 omap_cfg_reg(D3_7XX_KBC1);
124                 omap_cfg_reg(E4_7XX_KBC2);
125                 omap_cfg_reg(F4_7XX_KBC3);
126                 omap_cfg_reg(E3_7XX_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 #define OMAP_MMC_NR_RES         2
199
200 /*
201  * Register MMC devices. Called from mach-omap1 and mach-omap2 device init.
202  */
203 int __init omap_mmc_add(const char *name, int id, unsigned long base,
204                                 unsigned long size, unsigned int irq,
205                                 struct omap_mmc_platform_data *data)
206 {
207         struct platform_device *pdev;
208         struct resource res[OMAP_MMC_NR_RES];
209         int ret;
210
211         pdev = platform_device_alloc(name, id);
212         if (!pdev)
213                 return -ENOMEM;
214
215         memset(res, 0, OMAP_MMC_NR_RES * sizeof(struct resource));
216         res[0].start = base;
217         res[0].end = base + size - 1;
218         res[0].flags = IORESOURCE_MEM;
219         res[1].start = res[1].end = irq;
220         res[1].flags = IORESOURCE_IRQ;
221
222         ret = platform_device_add_resources(pdev, res, ARRAY_SIZE(res));
223         if (ret == 0)
224                 ret = platform_device_add_data(pdev, data, sizeof(*data));
225         if (ret)
226                 goto fail;
227
228         ret = platform_device_add(pdev);
229         if (ret)
230                 goto fail;
231
232         /* return device handle to board setup code */
233         data->dev = &pdev->dev;
234         return 0;
235
236 fail:
237         platform_device_put(pdev);
238         return ret;
239 }
240
241 #endif
242
243 /*-------------------------------------------------------------------------*/
244
245 #if defined(CONFIG_HW_RANDOM_OMAP) || defined(CONFIG_HW_RANDOM_OMAP_MODULE)
246
247 #ifdef CONFIG_ARCH_OMAP24XX
248 #define OMAP_RNG_BASE           0x480A0000
249 #else
250 #define OMAP_RNG_BASE           0xfffe5000
251 #endif
252
253 static struct resource rng_resources[] = {
254         {
255                 .start          = OMAP_RNG_BASE,
256                 .end            = OMAP_RNG_BASE + 0x4f,
257                 .flags          = IORESOURCE_MEM,
258         },
259 };
260
261 static struct platform_device omap_rng_device = {
262         .name           = "omap_rng",
263         .id             = -1,
264         .num_resources  = ARRAY_SIZE(rng_resources),
265         .resource       = rng_resources,
266 };
267
268 static void omap_init_rng(void)
269 {
270         (void) platform_device_register(&omap_rng_device);
271 }
272 #else
273 static inline void omap_init_rng(void) {}
274 #endif
275
276 /*-------------------------------------------------------------------------*/
277
278 /* Numbering for the SPI-capable controllers when used for SPI:
279  * spi          = 1
280  * uwire        = 2
281  * mmc1..2      = 3..4
282  * mcbsp1..3    = 5..7
283  */
284
285 #if defined(CONFIG_SPI_OMAP_UWIRE) || defined(CONFIG_SPI_OMAP_UWIRE_MODULE)
286
287 #define OMAP_UWIRE_BASE         0xfffb3000
288
289 static struct resource uwire_resources[] = {
290         {
291                 .start          = OMAP_UWIRE_BASE,
292                 .end            = OMAP_UWIRE_BASE + 0x20,
293                 .flags          = IORESOURCE_MEM,
294         },
295 };
296
297 static struct platform_device omap_uwire_device = {
298         .name      = "omap_uwire",
299         .id          = -1,
300         .num_resources  = ARRAY_SIZE(uwire_resources),
301         .resource       = uwire_resources,
302 };
303
304 static void omap_init_uwire(void)
305 {
306         /* FIXME define and use a boot tag; not all boards will be hooking
307          * up devices to the microwire controller, and multi-board configs
308          * mean that CONFIG_SPI_OMAP_UWIRE may be configured anyway...
309          */
310
311         /* board-specific code must configure chipselects (only a few
312          * are normally used) and SCLK/SDI/SDO (each has two choices).
313          */
314         (void) platform_device_register(&omap_uwire_device);
315 }
316 #else
317 static inline void omap_init_uwire(void) {}
318 #endif
319
320 /*-------------------------------------------------------------------------*/
321
322 #if     defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE)
323
324 static struct resource wdt_resources[] = {
325         {
326                 .flags          = IORESOURCE_MEM,
327         },
328 };
329
330 static struct platform_device omap_wdt_device = {
331         .name      = "omap_wdt",
332         .id          = -1,
333         .num_resources  = ARRAY_SIZE(wdt_resources),
334         .resource       = wdt_resources,
335 };
336
337 static void omap_init_wdt(void)
338 {
339         if (cpu_is_omap16xx())
340                 wdt_resources[0].start = 0xfffeb000;
341         else if (cpu_is_omap2420())
342                 wdt_resources[0].start = 0x48022000; /* WDT2 */
343         else if (cpu_is_omap2430())
344                 wdt_resources[0].start = 0x49016000; /* WDT2 */
345         else if (cpu_is_omap343x())
346                 wdt_resources[0].start = 0x48314000; /* WDT2 */
347         else if (cpu_is_omap44xx())
348                 wdt_resources[0].start = 0x4a314000;
349         else
350                 return;
351
352         wdt_resources[0].end = wdt_resources[0].start + 0x4f;
353
354         (void) platform_device_register(&omap_wdt_device);
355 }
356 #else
357 static inline void omap_init_wdt(void) {}
358 #endif
359
360 /*
361  * This gets called after board-specific INIT_MACHINE, and initializes most
362  * on-chip peripherals accessible on this board (except for few like USB):
363  *
364  *  (a) Does any "standard config" pin muxing needed.  Board-specific
365  *      code will have muxed GPIO pins and done "nonstandard" setup;
366  *      that code could live in the boot loader.
367  *  (b) Populating board-specific platform_data with the data drivers
368  *      rely on to handle wiring variations.
369  *  (c) Creating platform devices as meaningful on this board and
370  *      with this kernel configuration.
371  *
372  * Claiming GPIOs, and setting their direction and initial values, is the
373  * responsibility of the device drivers.  So is responding to probe().
374  *
375  * Board-specific knowlege like creating devices or pin setup is to be
376  * kept out of drivers as much as possible.  In particular, pin setup
377  * may be handled by the boot loader, and drivers should expect it will
378  * normally have been done by the time they're probed.
379  */
380 static int __init omap_init_devices(void)
381 {
382         /* please keep these calls, and their implementations above,
383          * in alphabetical order so they're easier to sort through.
384          */
385         omap_init_dsp();
386         omap_init_kp();
387         omap_init_rng();
388         omap_init_uwire();
389         omap_init_wdt();
390         return 0;
391 }
392 arch_initcall(omap_init_devices);