36f26c3fa25ee5dc83291012718e8f2f5ea53aae
[linux-2.6.git] / arch / arm / mach-omap1 / devices.c
1 /*
2  * linux/arch/arm/mach-omap1/devices.c
3  *
4  * OMAP1 platform device setup/initialization
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/dma-mapping.h>
13 #include <linux/module.h>
14 #include <linux/kernel.h>
15 #include <linux/init.h>
16 #include <linux/platform_device.h>
17 #include <linux/io.h>
18 #include <linux/spi/spi.h>
19
20 #include <mach/camera.h>
21 #include <mach/hardware.h>
22 #include <asm/mach/map.h>
23
24 #include <plat/tc.h>
25 #include <plat/board.h>
26 #include <plat/mux.h>
27 #include <mach/gpio.h>
28 #include <plat/mmc.h>
29 #include <plat/omap7xx.h>
30 #include <plat/mcbsp.h>
31
32 /*-------------------------------------------------------------------------*/
33
34 #if defined(CONFIG_RTC_DRV_OMAP) || defined(CONFIG_RTC_DRV_OMAP_MODULE)
35
36 #define OMAP_RTC_BASE           0xfffb4800
37
38 static struct resource rtc_resources[] = {
39         {
40                 .start          = OMAP_RTC_BASE,
41                 .end            = OMAP_RTC_BASE + 0x5f,
42                 .flags          = IORESOURCE_MEM,
43         },
44         {
45                 .start          = INT_RTC_TIMER,
46                 .flags          = IORESOURCE_IRQ,
47         },
48         {
49                 .start          = INT_RTC_ALARM,
50                 .flags          = IORESOURCE_IRQ,
51         },
52 };
53
54 static struct platform_device omap_rtc_device = {
55         .name           = "omap_rtc",
56         .id             = -1,
57         .num_resources  = ARRAY_SIZE(rtc_resources),
58         .resource       = rtc_resources,
59 };
60
61 static void omap_init_rtc(void)
62 {
63         (void) platform_device_register(&omap_rtc_device);
64 }
65 #else
66 static inline void omap_init_rtc(void) {}
67 #endif
68
69 static inline void omap_init_mbox(void) { }
70
71 /*-------------------------------------------------------------------------*/
72
73 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
74
75 static inline void omap1_mmc_mux(struct omap_mmc_platform_data *mmc_controller,
76                         int controller_nr)
77 {
78         if (controller_nr == 0) {
79                 if (cpu_is_omap7xx()) {
80                         omap_cfg_reg(MMC_7XX_CMD);
81                         omap_cfg_reg(MMC_7XX_CLK);
82                         omap_cfg_reg(MMC_7XX_DAT0);
83                 } else {
84                         omap_cfg_reg(MMC_CMD);
85                         omap_cfg_reg(MMC_CLK);
86                         omap_cfg_reg(MMC_DAT0);
87                 }
88
89                 if (cpu_is_omap1710()) {
90                         omap_cfg_reg(M15_1710_MMC_CLKI);
91                         omap_cfg_reg(P19_1710_MMC_CMDDIR);
92                         omap_cfg_reg(P20_1710_MMC_DATDIR0);
93                 }
94                 if (mmc_controller->slots[0].wires == 4 && !cpu_is_omap7xx()) {
95                         omap_cfg_reg(MMC_DAT1);
96                         /* NOTE: DAT2 can be on W10 (here) or M15 */
97                         if (!mmc_controller->slots[0].nomux)
98                                 omap_cfg_reg(MMC_DAT2);
99                         omap_cfg_reg(MMC_DAT3);
100                 }
101         }
102
103         /* Block 2 is on newer chips, and has many pinout options */
104         if (cpu_is_omap16xx() && controller_nr == 1) {
105                 if (!mmc_controller->slots[1].nomux) {
106                         omap_cfg_reg(Y8_1610_MMC2_CMD);
107                         omap_cfg_reg(Y10_1610_MMC2_CLK);
108                         omap_cfg_reg(R18_1610_MMC2_CLKIN);
109                         omap_cfg_reg(W8_1610_MMC2_DAT0);
110                         if (mmc_controller->slots[1].wires == 4) {
111                                 omap_cfg_reg(V8_1610_MMC2_DAT1);
112                                 omap_cfg_reg(W15_1610_MMC2_DAT2);
113                                 omap_cfg_reg(R10_1610_MMC2_DAT3);
114                         }
115
116                         /* These are needed for the level shifter */
117                         omap_cfg_reg(V9_1610_MMC2_CMDDIR);
118                         omap_cfg_reg(V5_1610_MMC2_DATDIR0);
119                         omap_cfg_reg(W19_1610_MMC2_DATDIR1);
120                 }
121
122                 /* Feedback clock must be set on OMAP-1710 MMC2 */
123                 if (cpu_is_omap1710())
124                         omap_writel(omap_readl(MOD_CONF_CTRL_1) | (1 << 24),
125                                         MOD_CONF_CTRL_1);
126         }
127 }
128
129 void __init omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
130                         int nr_controllers)
131 {
132         int i;
133
134         for (i = 0; i < nr_controllers; i++) {
135                 unsigned long base, size;
136                 unsigned int irq = 0;
137
138                 if (!mmc_data[i])
139                         continue;
140
141                 omap1_mmc_mux(mmc_data[i], i);
142
143                 switch (i) {
144                 case 0:
145                         base = OMAP1_MMC1_BASE;
146                         irq = INT_MMC;
147                         break;
148                 case 1:
149                         if (!cpu_is_omap16xx())
150                                 return;
151                         base = OMAP1_MMC2_BASE;
152                         irq = INT_1610_MMC2;
153                         break;
154                 default:
155                         continue;
156                 }
157                 size = OMAP1_MMC_SIZE;
158
159                 omap_mmc_add("mmci-omap", i, base, size, irq, mmc_data[i]);
160         };
161 }
162
163 #endif
164
165 /*-------------------------------------------------------------------------*/
166
167 /* OMAP7xx SPI support */
168 #if defined(CONFIG_SPI_OMAP_100K) || defined(CONFIG_SPI_OMAP_100K_MODULE)
169
170 struct platform_device omap_spi1 = {
171         .name           = "omap1_spi100k",
172         .id             = 1,
173 };
174
175 struct platform_device omap_spi2 = {
176         .name           = "omap1_spi100k",
177         .id             = 2,
178 };
179
180 static void omap_init_spi100k(void)
181 {
182         omap_spi1.dev.platform_data = ioremap(OMAP7XX_SPI1_BASE, 0x7ff);
183         if (omap_spi1.dev.platform_data)
184                 platform_device_register(&omap_spi1);
185
186         omap_spi2.dev.platform_data = ioremap(OMAP7XX_SPI2_BASE, 0x7ff);
187         if (omap_spi2.dev.platform_data)
188                 platform_device_register(&omap_spi2);
189 }
190
191 #else
192 static inline void omap_init_spi100k(void)
193 {
194 }
195 #endif
196
197
198 #define OMAP1_CAMERA_BASE       0xfffb6800
199 #define OMAP1_CAMERA_IOSIZE     0x1c
200
201 static struct resource omap1_camera_resources[] = {
202         [0] = {
203                 .start  = OMAP1_CAMERA_BASE,
204                 .end    = OMAP1_CAMERA_BASE + OMAP1_CAMERA_IOSIZE - 1,
205                 .flags  = IORESOURCE_MEM,
206         },
207         [1] = {
208                 .start  = INT_CAMERA,
209                 .flags  = IORESOURCE_IRQ,
210         },
211 };
212
213 static u64 omap1_camera_dma_mask = DMA_BIT_MASK(32);
214
215 static struct platform_device omap1_camera_device = {
216         .name           = "omap1-camera",
217         .id             = 0, /* This is used to put cameras on this interface */
218         .dev            = {
219                 .dma_mask               = &omap1_camera_dma_mask,
220                 .coherent_dma_mask      = DMA_BIT_MASK(32),
221         },
222         .num_resources  = ARRAY_SIZE(omap1_camera_resources),
223         .resource       = omap1_camera_resources,
224 };
225
226 void __init omap1_camera_init(void *info)
227 {
228         struct platform_device *dev = &omap1_camera_device;
229         int ret;
230
231         dev->dev.platform_data = info;
232
233         ret = platform_device_register(dev);
234         if (ret)
235                 dev_err(&dev->dev, "unable to register device: %d\n", ret);
236 }
237
238
239 /*-------------------------------------------------------------------------*/
240
241 static inline void omap_init_sti(void) {}
242
243 #if defined(CONFIG_SND_SOC) || defined(CONFIG_SND_SOC_MODULE)
244
245 static struct platform_device omap_pcm = {
246         .name   = "omap-pcm-audio",
247         .id     = -1,
248 };
249
250 OMAP_MCBSP_PLATFORM_DEVICE(1);
251 OMAP_MCBSP_PLATFORM_DEVICE(2);
252 OMAP_MCBSP_PLATFORM_DEVICE(3);
253
254 static void omap_init_audio(void)
255 {
256         platform_device_register(&omap_mcbsp1);
257         platform_device_register(&omap_mcbsp2);
258         if (!cpu_is_omap7xx())
259                 platform_device_register(&omap_mcbsp3);
260         platform_device_register(&omap_pcm);
261 }
262
263 #else
264 static inline void omap_init_audio(void) {}
265 #endif
266
267 /*-------------------------------------------------------------------------*/
268
269 /*
270  * This gets called after board-specific INIT_MACHINE, and initializes most
271  * on-chip peripherals accessible on this board (except for few like USB):
272  *
273  *  (a) Does any "standard config" pin muxing needed.  Board-specific
274  *      code will have muxed GPIO pins and done "nonstandard" setup;
275  *      that code could live in the boot loader.
276  *  (b) Populating board-specific platform_data with the data drivers
277  *      rely on to handle wiring variations.
278  *  (c) Creating platform devices as meaningful on this board and
279  *      with this kernel configuration.
280  *
281  * Claiming GPIOs, and setting their direction and initial values, is the
282  * responsibility of the device drivers.  So is responding to probe().
283  *
284  * Board-specific knowledge like creating devices or pin setup is to be
285  * kept out of drivers as much as possible.  In particular, pin setup
286  * may be handled by the boot loader, and drivers should expect it will
287  * normally have been done by the time they're probed.
288  */
289 static int __init omap1_init_devices(void)
290 {
291         if (!cpu_class_is_omap1())
292                 return -ENODEV;
293
294         /* please keep these calls, and their implementations above,
295          * in alphabetical order so they're easier to sort through.
296          */
297
298         omap_init_mbox();
299         omap_init_rtc();
300         omap_init_spi100k();
301         omap_init_sti();
302         omap_init_audio();
303
304         return 0;
305 }
306 arch_initcall(omap1_init_devices);
307
308 #if defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE)
309
310 static struct resource wdt_resources[] = {
311         {
312                 .start          = 0xfffeb000,
313                 .end            = 0xfffeb07F,
314                 .flags          = IORESOURCE_MEM,
315         },
316 };
317
318 static struct platform_device omap_wdt_device = {
319         .name      = "omap_wdt",
320         .id          = -1,
321         .num_resources  = ARRAY_SIZE(wdt_resources),
322         .resource       = wdt_resources,
323 };
324
325 static int __init omap_init_wdt(void)
326 {
327         if (!cpu_is_omap16xx())
328                 return -ENODEV;
329
330         return platform_device_register(&omap_wdt_device);
331 }
332 subsys_initcall(omap_init_wdt);
333 #endif