mmc: omap: Remove cpu_is_omap usage from the driver
[muen/linux.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/gpio.h>
14 #include <linux/module.h>
15 #include <linux/kernel.h>
16 #include <linux/init.h>
17 #include <linux/platform_device.h>
18 #include <linux/spi/spi.h>
19
20 #include <asm/mach/map.h>
21
22 #include <plat/tc.h>
23 #include <mach/mux.h>
24 #include <plat/dma.h>
25
26 #include <mach/omap7xx.h>
27 #include <mach/camera.h>
28 #include <mach/hardware.h>
29
30 #include "common.h"
31 #include "clock.h"
32 #include "mmc.h"
33
34 #if defined(CONFIG_SND_SOC) || defined(CONFIG_SND_SOC_MODULE)
35
36 static struct platform_device omap_pcm = {
37         .name   = "omap-pcm-audio",
38         .id     = -1,
39 };
40
41 static void omap_init_audio(void)
42 {
43         platform_device_register(&omap_pcm);
44 }
45
46 #else
47 static inline void omap_init_audio(void) {}
48 #endif
49
50 /*-------------------------------------------------------------------------*/
51
52 #if defined(CONFIG_RTC_DRV_OMAP) || defined(CONFIG_RTC_DRV_OMAP_MODULE)
53
54 #define OMAP_RTC_BASE           0xfffb4800
55
56 static struct resource rtc_resources[] = {
57         {
58                 .start          = OMAP_RTC_BASE,
59                 .end            = OMAP_RTC_BASE + 0x5f,
60                 .flags          = IORESOURCE_MEM,
61         },
62         {
63                 .start          = INT_RTC_TIMER,
64                 .flags          = IORESOURCE_IRQ,
65         },
66         {
67                 .start          = INT_RTC_ALARM,
68                 .flags          = IORESOURCE_IRQ,
69         },
70 };
71
72 static struct platform_device omap_rtc_device = {
73         .name           = "omap_rtc",
74         .id             = -1,
75         .num_resources  = ARRAY_SIZE(rtc_resources),
76         .resource       = rtc_resources,
77 };
78
79 static void omap_init_rtc(void)
80 {
81         (void) platform_device_register(&omap_rtc_device);
82 }
83 #else
84 static inline void omap_init_rtc(void) {}
85 #endif
86
87 static inline void omap_init_mbox(void) { }
88
89 /*-------------------------------------------------------------------------*/
90
91 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
92
93 static inline void omap1_mmc_mux(struct omap_mmc_platform_data *mmc_controller,
94                         int controller_nr)
95 {
96         if (controller_nr == 0) {
97                 if (cpu_is_omap7xx()) {
98                         omap_cfg_reg(MMC_7XX_CMD);
99                         omap_cfg_reg(MMC_7XX_CLK);
100                         omap_cfg_reg(MMC_7XX_DAT0);
101                 } else {
102                         omap_cfg_reg(MMC_CMD);
103                         omap_cfg_reg(MMC_CLK);
104                         omap_cfg_reg(MMC_DAT0);
105                 }
106
107                 if (cpu_is_omap1710()) {
108                         omap_cfg_reg(M15_1710_MMC_CLKI);
109                         omap_cfg_reg(P19_1710_MMC_CMDDIR);
110                         omap_cfg_reg(P20_1710_MMC_DATDIR0);
111                 }
112                 if (mmc_controller->slots[0].wires == 4 && !cpu_is_omap7xx()) {
113                         omap_cfg_reg(MMC_DAT1);
114                         /* NOTE: DAT2 can be on W10 (here) or M15 */
115                         if (!mmc_controller->slots[0].nomux)
116                                 omap_cfg_reg(MMC_DAT2);
117                         omap_cfg_reg(MMC_DAT3);
118                 }
119         }
120
121         /* Block 2 is on newer chips, and has many pinout options */
122         if (cpu_is_omap16xx() && controller_nr == 1) {
123                 if (!mmc_controller->slots[1].nomux) {
124                         omap_cfg_reg(Y8_1610_MMC2_CMD);
125                         omap_cfg_reg(Y10_1610_MMC2_CLK);
126                         omap_cfg_reg(R18_1610_MMC2_CLKIN);
127                         omap_cfg_reg(W8_1610_MMC2_DAT0);
128                         if (mmc_controller->slots[1].wires == 4) {
129                                 omap_cfg_reg(V8_1610_MMC2_DAT1);
130                                 omap_cfg_reg(W15_1610_MMC2_DAT2);
131                                 omap_cfg_reg(R10_1610_MMC2_DAT3);
132                         }
133
134                         /* These are needed for the level shifter */
135                         omap_cfg_reg(V9_1610_MMC2_CMDDIR);
136                         omap_cfg_reg(V5_1610_MMC2_DATDIR0);
137                         omap_cfg_reg(W19_1610_MMC2_DATDIR1);
138                 }
139
140                 /* Feedback clock must be set on OMAP-1710 MMC2 */
141                 if (cpu_is_omap1710())
142                         omap_writel(omap_readl(MOD_CONF_CTRL_1) | (1 << 24),
143                                         MOD_CONF_CTRL_1);
144         }
145 }
146
147 #define OMAP_MMC_NR_RES         4
148
149 /*
150  * Register MMC devices.
151  */
152 static int __init omap_mmc_add(const char *name, int id, unsigned long base,
153                                 unsigned long size, unsigned int irq,
154                                 unsigned rx_req, unsigned tx_req,
155                                 struct omap_mmc_platform_data *data)
156 {
157         struct platform_device *pdev;
158         struct resource res[OMAP_MMC_NR_RES];
159         int ret;
160
161         pdev = platform_device_alloc(name, id);
162         if (!pdev)
163                 return -ENOMEM;
164
165         memset(res, 0, OMAP_MMC_NR_RES * sizeof(struct resource));
166         res[0].start = base;
167         res[0].end = base + size - 1;
168         res[0].flags = IORESOURCE_MEM;
169         res[1].start = res[1].end = irq;
170         res[1].flags = IORESOURCE_IRQ;
171         res[2].start = rx_req;
172         res[2].name = "rx";
173         res[2].flags = IORESOURCE_DMA;
174         res[3].start = tx_req;
175         res[3].name = "tx";
176         res[3].flags = IORESOURCE_DMA;
177
178         if (cpu_is_omap7xx())
179                 data->slots[0].features = MMC_OMAP7XX;
180         if (cpu_is_omap15xx())
181                 data->slots[0].features = MMC_OMAP15XX;
182         if (cpu_is_omap16xx())
183                 data->slots[0].features = MMC_OMAP16XX;
184
185         ret = platform_device_add_resources(pdev, res, ARRAY_SIZE(res));
186         if (ret == 0)
187                 ret = platform_device_add_data(pdev, data, sizeof(*data));
188         if (ret)
189                 goto fail;
190
191         ret = platform_device_add(pdev);
192         if (ret)
193                 goto fail;
194
195         /* return device handle to board setup code */
196         data->dev = &pdev->dev;
197         return 0;
198
199 fail:
200         platform_device_put(pdev);
201         return ret;
202 }
203
204 void __init omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
205                         int nr_controllers)
206 {
207         int i;
208
209         for (i = 0; i < nr_controllers; i++) {
210                 unsigned long base, size;
211                 unsigned rx_req, tx_req;
212                 unsigned int irq = 0;
213
214                 if (!mmc_data[i])
215                         continue;
216
217                 omap1_mmc_mux(mmc_data[i], i);
218
219                 switch (i) {
220                 case 0:
221                         base = OMAP1_MMC1_BASE;
222                         irq = INT_MMC;
223                         rx_req = OMAP_DMA_MMC_RX;
224                         tx_req = OMAP_DMA_MMC_TX;
225                         break;
226                 case 1:
227                         if (!cpu_is_omap16xx())
228                                 return;
229                         base = OMAP1_MMC2_BASE;
230                         irq = INT_1610_MMC2;
231                         rx_req = OMAP_DMA_MMC2_RX;
232                         tx_req = OMAP_DMA_MMC2_TX;
233                         break;
234                 default:
235                         continue;
236                 }
237                 size = OMAP1_MMC_SIZE;
238
239                 omap_mmc_add("mmci-omap", i, base, size, irq,
240                                 rx_req, tx_req, mmc_data[i]);
241         }
242 }
243
244 #endif
245
246 /*-------------------------------------------------------------------------*/
247
248 /* OMAP7xx SPI support */
249 #if defined(CONFIG_SPI_OMAP_100K) || defined(CONFIG_SPI_OMAP_100K_MODULE)
250
251 struct platform_device omap_spi1 = {
252         .name           = "omap1_spi100k",
253         .id             = 1,
254 };
255
256 struct platform_device omap_spi2 = {
257         .name           = "omap1_spi100k",
258         .id             = 2,
259 };
260
261 static void omap_init_spi100k(void)
262 {
263         omap_spi1.dev.platform_data = ioremap(OMAP7XX_SPI1_BASE, 0x7ff);
264         if (omap_spi1.dev.platform_data)
265                 platform_device_register(&omap_spi1);
266
267         omap_spi2.dev.platform_data = ioremap(OMAP7XX_SPI2_BASE, 0x7ff);
268         if (omap_spi2.dev.platform_data)
269                 platform_device_register(&omap_spi2);
270 }
271
272 #else
273 static inline void omap_init_spi100k(void)
274 {
275 }
276 #endif
277
278
279 #define OMAP1_CAMERA_BASE       0xfffb6800
280 #define OMAP1_CAMERA_IOSIZE     0x1c
281
282 static struct resource omap1_camera_resources[] = {
283         [0] = {
284                 .start  = OMAP1_CAMERA_BASE,
285                 .end    = OMAP1_CAMERA_BASE + OMAP1_CAMERA_IOSIZE - 1,
286                 .flags  = IORESOURCE_MEM,
287         },
288         [1] = {
289                 .start  = INT_CAMERA,
290                 .flags  = IORESOURCE_IRQ,
291         },
292 };
293
294 static u64 omap1_camera_dma_mask = DMA_BIT_MASK(32);
295
296 static struct platform_device omap1_camera_device = {
297         .name           = "omap1-camera",
298         .id             = 0, /* This is used to put cameras on this interface */
299         .dev            = {
300                 .dma_mask               = &omap1_camera_dma_mask,
301                 .coherent_dma_mask      = DMA_BIT_MASK(32),
302         },
303         .num_resources  = ARRAY_SIZE(omap1_camera_resources),
304         .resource       = omap1_camera_resources,
305 };
306
307 void __init omap1_camera_init(void *info)
308 {
309         struct platform_device *dev = &omap1_camera_device;
310         int ret;
311
312         dev->dev.platform_data = info;
313
314         ret = platform_device_register(dev);
315         if (ret)
316                 dev_err(&dev->dev, "unable to register device: %d\n", ret);
317 }
318
319
320 /*-------------------------------------------------------------------------*/
321
322 static inline void omap_init_sti(void) {}
323
324 /* Numbering for the SPI-capable controllers when used for SPI:
325  * spi          = 1
326  * uwire        = 2
327  * mmc1..2      = 3..4
328  * mcbsp1..3    = 5..7
329  */
330
331 #if defined(CONFIG_SPI_OMAP_UWIRE) || defined(CONFIG_SPI_OMAP_UWIRE_MODULE)
332
333 #define OMAP_UWIRE_BASE         0xfffb3000
334
335 static struct resource uwire_resources[] = {
336         {
337                 .start          = OMAP_UWIRE_BASE,
338                 .end            = OMAP_UWIRE_BASE + 0x20,
339                 .flags          = IORESOURCE_MEM,
340         },
341 };
342
343 static struct platform_device omap_uwire_device = {
344         .name      = "omap_uwire",
345         .id          = -1,
346         .num_resources  = ARRAY_SIZE(uwire_resources),
347         .resource       = uwire_resources,
348 };
349
350 static void omap_init_uwire(void)
351 {
352         /* FIXME define and use a boot tag; not all boards will be hooking
353          * up devices to the microwire controller, and multi-board configs
354          * mean that CONFIG_SPI_OMAP_UWIRE may be configured anyway...
355          */
356
357         /* board-specific code must configure chipselects (only a few
358          * are normally used) and SCLK/SDI/SDO (each has two choices).
359          */
360         (void) platform_device_register(&omap_uwire_device);
361 }
362 #else
363 static inline void omap_init_uwire(void) {}
364 #endif
365
366
367 #define OMAP1_RNG_BASE          0xfffe5000
368
369 static struct resource omap1_rng_resources[] = {
370         {
371                 .start          = OMAP1_RNG_BASE,
372                 .end            = OMAP1_RNG_BASE + 0x4f,
373                 .flags          = IORESOURCE_MEM,
374         },
375 };
376
377 static struct platform_device omap1_rng_device = {
378         .name           = "omap_rng",
379         .id             = -1,
380         .num_resources  = ARRAY_SIZE(omap1_rng_resources),
381         .resource       = omap1_rng_resources,
382 };
383
384 static void omap1_init_rng(void)
385 {
386         if (!cpu_is_omap16xx())
387                 return;
388
389         (void) platform_device_register(&omap1_rng_device);
390 }
391
392 /*-------------------------------------------------------------------------*/
393
394 /*
395  * This gets called after board-specific INIT_MACHINE, and initializes most
396  * on-chip peripherals accessible on this board (except for few like USB):
397  *
398  *  (a) Does any "standard config" pin muxing needed.  Board-specific
399  *      code will have muxed GPIO pins and done "nonstandard" setup;
400  *      that code could live in the boot loader.
401  *  (b) Populating board-specific platform_data with the data drivers
402  *      rely on to handle wiring variations.
403  *  (c) Creating platform devices as meaningful on this board and
404  *      with this kernel configuration.
405  *
406  * Claiming GPIOs, and setting their direction and initial values, is the
407  * responsibility of the device drivers.  So is responding to probe().
408  *
409  * Board-specific knowledge like creating devices or pin setup is to be
410  * kept out of drivers as much as possible.  In particular, pin setup
411  * may be handled by the boot loader, and drivers should expect it will
412  * normally have been done by the time they're probed.
413  */
414 static int __init omap1_init_devices(void)
415 {
416         if (!cpu_class_is_omap1())
417                 return -ENODEV;
418
419         omap_sram_init();
420         omap1_clk_late_init();
421
422         /* please keep these calls, and their implementations above,
423          * in alphabetical order so they're easier to sort through.
424          */
425
426         omap_init_audio();
427         omap_init_mbox();
428         omap_init_rtc();
429         omap_init_spi100k();
430         omap_init_sti();
431         omap_init_uwire();
432         omap1_init_rng();
433
434         return 0;
435 }
436 arch_initcall(omap1_init_devices);
437
438 #if defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE)
439
440 static struct resource wdt_resources[] = {
441         {
442                 .start          = 0xfffeb000,
443                 .end            = 0xfffeb07F,
444                 .flags          = IORESOURCE_MEM,
445         },
446 };
447
448 static struct platform_device omap_wdt_device = {
449         .name      = "omap_wdt",
450         .id          = -1,
451         .num_resources  = ARRAY_SIZE(wdt_resources),
452         .resource       = wdt_resources,
453 };
454
455 static int __init omap_init_wdt(void)
456 {
457         if (!cpu_is_omap16xx())
458                 return -ENODEV;
459
460         return platform_device_register(&omap_wdt_device);
461 }
462 subsys_initcall(omap_init_wdt);
463 #endif