2 * linux/arch/arm/mach-omap1/devices.c
4 * OMAP1 platform device setup/initialization
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.
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>
20 #include <asm/mach/map.h>
27 #include <mach/omap7xx.h>
28 #include <mach/camera.h>
29 #include <mach/hardware.h>
34 #if defined(CONFIG_SND_SOC) || defined(CONFIG_SND_SOC_MODULE)
36 static struct platform_device omap_pcm
= {
37 .name
= "omap-pcm-audio",
41 static void omap_init_audio(void)
43 platform_device_register(&omap_pcm
);
47 static inline void omap_init_audio(void) {}
50 /*-------------------------------------------------------------------------*/
52 #if defined(CONFIG_RTC_DRV_OMAP) || defined(CONFIG_RTC_DRV_OMAP_MODULE)
54 #define OMAP_RTC_BASE 0xfffb4800
56 static struct resource rtc_resources
[] = {
58 .start
= OMAP_RTC_BASE
,
59 .end
= OMAP_RTC_BASE
+ 0x5f,
60 .flags
= IORESOURCE_MEM
,
63 .start
= INT_RTC_TIMER
,
64 .flags
= IORESOURCE_IRQ
,
67 .start
= INT_RTC_ALARM
,
68 .flags
= IORESOURCE_IRQ
,
72 static struct platform_device omap_rtc_device
= {
75 .num_resources
= ARRAY_SIZE(rtc_resources
),
76 .resource
= rtc_resources
,
79 static void omap_init_rtc(void)
81 (void) platform_device_register(&omap_rtc_device
);
84 static inline void omap_init_rtc(void) {}
87 static inline void omap_init_mbox(void) { }
89 /*-------------------------------------------------------------------------*/
91 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
93 static inline void omap1_mmc_mux(struct omap_mmc_platform_data
*mmc_controller
,
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
);
102 omap_cfg_reg(MMC_CMD
);
103 omap_cfg_reg(MMC_CLK
);
104 omap_cfg_reg(MMC_DAT0
);
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
);
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
);
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
);
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
);
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),
147 #define OMAP_MMC_NR_RES 4
150 * Register MMC devices.
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
)
157 struct platform_device
*pdev
;
158 struct resource res
[OMAP_MMC_NR_RES
];
161 pdev
= platform_device_alloc(name
, id
);
165 memset(res
, 0, OMAP_MMC_NR_RES
* sizeof(struct resource
));
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
;
173 res
[2].flags
= IORESOURCE_DMA
;
174 res
[3].start
= tx_req
;
176 res
[3].flags
= IORESOURCE_DMA
;
178 ret
= platform_device_add_resources(pdev
, res
, ARRAY_SIZE(res
));
180 ret
= platform_device_add_data(pdev
, data
, sizeof(*data
));
184 ret
= platform_device_add(pdev
);
188 /* return device handle to board setup code */
189 data
->dev
= &pdev
->dev
;
193 platform_device_put(pdev
);
197 void __init
omap1_init_mmc(struct omap_mmc_platform_data
**mmc_data
,
202 for (i
= 0; i
< nr_controllers
; i
++) {
203 unsigned long base
, size
;
204 unsigned rx_req
, tx_req
;
205 unsigned int irq
= 0;
210 omap1_mmc_mux(mmc_data
[i
], i
);
214 base
= OMAP1_MMC1_BASE
;
216 rx_req
= OMAP_DMA_MMC_RX
;
217 tx_req
= OMAP_DMA_MMC_TX
;
220 if (!cpu_is_omap16xx())
222 base
= OMAP1_MMC2_BASE
;
224 rx_req
= OMAP_DMA_MMC2_RX
;
225 tx_req
= OMAP_DMA_MMC2_TX
;
230 size
= OMAP1_MMC_SIZE
;
232 omap_mmc_add("mmci-omap", i
, base
, size
, irq
,
233 rx_req
, tx_req
, mmc_data
[i
]);
239 /*-------------------------------------------------------------------------*/
241 /* OMAP7xx SPI support */
242 #if defined(CONFIG_SPI_OMAP_100K) || defined(CONFIG_SPI_OMAP_100K_MODULE)
244 struct platform_device omap_spi1
= {
245 .name
= "omap1_spi100k",
249 struct platform_device omap_spi2
= {
250 .name
= "omap1_spi100k",
254 static void omap_init_spi100k(void)
256 omap_spi1
.dev
.platform_data
= ioremap(OMAP7XX_SPI1_BASE
, 0x7ff);
257 if (omap_spi1
.dev
.platform_data
)
258 platform_device_register(&omap_spi1
);
260 omap_spi2
.dev
.platform_data
= ioremap(OMAP7XX_SPI2_BASE
, 0x7ff);
261 if (omap_spi2
.dev
.platform_data
)
262 platform_device_register(&omap_spi2
);
266 static inline void omap_init_spi100k(void)
272 #define OMAP1_CAMERA_BASE 0xfffb6800
273 #define OMAP1_CAMERA_IOSIZE 0x1c
275 static struct resource omap1_camera_resources
[] = {
277 .start
= OMAP1_CAMERA_BASE
,
278 .end
= OMAP1_CAMERA_BASE
+ OMAP1_CAMERA_IOSIZE
- 1,
279 .flags
= IORESOURCE_MEM
,
283 .flags
= IORESOURCE_IRQ
,
287 static u64 omap1_camera_dma_mask
= DMA_BIT_MASK(32);
289 static struct platform_device omap1_camera_device
= {
290 .name
= "omap1-camera",
291 .id
= 0, /* This is used to put cameras on this interface */
293 .dma_mask
= &omap1_camera_dma_mask
,
294 .coherent_dma_mask
= DMA_BIT_MASK(32),
296 .num_resources
= ARRAY_SIZE(omap1_camera_resources
),
297 .resource
= omap1_camera_resources
,
300 void __init
omap1_camera_init(void *info
)
302 struct platform_device
*dev
= &omap1_camera_device
;
305 dev
->dev
.platform_data
= info
;
307 ret
= platform_device_register(dev
);
309 dev_err(&dev
->dev
, "unable to register device: %d\n", ret
);
313 /*-------------------------------------------------------------------------*/
315 static inline void omap_init_sti(void) {}
317 /* Numbering for the SPI-capable controllers when used for SPI:
324 #if defined(CONFIG_SPI_OMAP_UWIRE) || defined(CONFIG_SPI_OMAP_UWIRE_MODULE)
326 #define OMAP_UWIRE_BASE 0xfffb3000
328 static struct resource uwire_resources
[] = {
330 .start
= OMAP_UWIRE_BASE
,
331 .end
= OMAP_UWIRE_BASE
+ 0x20,
332 .flags
= IORESOURCE_MEM
,
336 static struct platform_device omap_uwire_device
= {
337 .name
= "omap_uwire",
339 .num_resources
= ARRAY_SIZE(uwire_resources
),
340 .resource
= uwire_resources
,
343 static void omap_init_uwire(void)
345 /* FIXME define and use a boot tag; not all boards will be hooking
346 * up devices to the microwire controller, and multi-board configs
347 * mean that CONFIG_SPI_OMAP_UWIRE may be configured anyway...
350 /* board-specific code must configure chipselects (only a few
351 * are normally used) and SCLK/SDI/SDO (each has two choices).
353 (void) platform_device_register(&omap_uwire_device
);
356 static inline void omap_init_uwire(void) {}
360 #define OMAP1_RNG_BASE 0xfffe5000
362 static struct resource omap1_rng_resources
[] = {
364 .start
= OMAP1_RNG_BASE
,
365 .end
= OMAP1_RNG_BASE
+ 0x4f,
366 .flags
= IORESOURCE_MEM
,
370 static struct platform_device omap1_rng_device
= {
373 .num_resources
= ARRAY_SIZE(omap1_rng_resources
),
374 .resource
= omap1_rng_resources
,
377 static void omap1_init_rng(void)
379 if (!cpu_is_omap16xx())
382 (void) platform_device_register(&omap1_rng_device
);
385 /*-------------------------------------------------------------------------*/
388 * This gets called after board-specific INIT_MACHINE, and initializes most
389 * on-chip peripherals accessible on this board (except for few like USB):
391 * (a) Does any "standard config" pin muxing needed. Board-specific
392 * code will have muxed GPIO pins and done "nonstandard" setup;
393 * that code could live in the boot loader.
394 * (b) Populating board-specific platform_data with the data drivers
395 * rely on to handle wiring variations.
396 * (c) Creating platform devices as meaningful on this board and
397 * with this kernel configuration.
399 * Claiming GPIOs, and setting their direction and initial values, is the
400 * responsibility of the device drivers. So is responding to probe().
402 * Board-specific knowledge like creating devices or pin setup is to be
403 * kept out of drivers as much as possible. In particular, pin setup
404 * may be handled by the boot loader, and drivers should expect it will
405 * normally have been done by the time they're probed.
407 static int __init
omap1_init_devices(void)
409 if (!cpu_class_is_omap1())
413 omap1_clk_late_init();
415 /* please keep these calls, and their implementations above,
416 * in alphabetical order so they're easier to sort through.
429 arch_initcall(omap1_init_devices
);
431 #if defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE)
433 static struct resource wdt_resources
[] = {
437 .flags
= IORESOURCE_MEM
,
441 static struct platform_device omap_wdt_device
= {
444 .num_resources
= ARRAY_SIZE(wdt_resources
),
445 .resource
= wdt_resources
,
448 static int __init
omap_init_wdt(void)
450 if (!cpu_is_omap16xx())
453 return platform_device_register(&omap_wdt_device
);
455 subsys_initcall(omap_init_wdt
);