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>
23 #include <plat/board.h>
26 #include <plat/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 2
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 struct omap_mmc_platform_data *data)
156 struct platform_device *pdev;
157 struct resource res[OMAP_MMC_NR_RES];
160 pdev = platform_device_alloc(name, id);
164 memset(res, 0, OMAP_MMC_NR_RES * sizeof(struct resource));
166 res[0].end = base + size - 1;
167 res[0].flags = IORESOURCE_MEM;
168 res[1].start = res[1].end = irq;
169 res[1].flags = IORESOURCE_IRQ;
171 ret = platform_device_add_resources(pdev, res, ARRAY_SIZE(res));
173 ret = platform_device_add_data(pdev, data, sizeof(*data));
177 ret = platform_device_add(pdev);
181 /* return device handle to board setup code */
182 data->dev = &pdev->dev;
186 platform_device_put(pdev);
190 void __init omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
195 for (i = 0; i < nr_controllers; i++) {
196 unsigned long base, size;
197 unsigned int irq = 0;
202 omap1_mmc_mux(mmc_data[i], i);
206 base = OMAP1_MMC1_BASE;
210 if (!cpu_is_omap16xx())
212 base = OMAP1_MMC2_BASE;
218 size = OMAP1_MMC_SIZE;
220 omap_mmc_add("mmci-omap", i, base, size, irq, mmc_data[i]);
226 /*-------------------------------------------------------------------------*/
228 /* OMAP7xx SPI support */
229 #if defined(CONFIG_SPI_OMAP_100K) || defined(CONFIG_SPI_OMAP_100K_MODULE)
231 struct platform_device omap_spi1 = {
232 .name = "omap1_spi100k",
236 struct platform_device omap_spi2 = {
237 .name = "omap1_spi100k",
241 static void omap_init_spi100k(void)
243 omap_spi1.dev.platform_data = ioremap(OMAP7XX_SPI1_BASE, 0x7ff);
244 if (omap_spi1.dev.platform_data)
245 platform_device_register(&omap_spi1);
247 omap_spi2.dev.platform_data = ioremap(OMAP7XX_SPI2_BASE, 0x7ff);
248 if (omap_spi2.dev.platform_data)
249 platform_device_register(&omap_spi2);
253 static inline void omap_init_spi100k(void)
259 #define OMAP1_CAMERA_BASE 0xfffb6800
260 #define OMAP1_CAMERA_IOSIZE 0x1c
262 static struct resource omap1_camera_resources[] = {
264 .start = OMAP1_CAMERA_BASE,
265 .end = OMAP1_CAMERA_BASE + OMAP1_CAMERA_IOSIZE - 1,
266 .flags = IORESOURCE_MEM,
270 .flags = IORESOURCE_IRQ,
274 static u64 omap1_camera_dma_mask = DMA_BIT_MASK(32);
276 static struct platform_device omap1_camera_device = {
277 .name = "omap1-camera",
278 .id = 0, /* This is used to put cameras on this interface */
280 .dma_mask = &omap1_camera_dma_mask,
281 .coherent_dma_mask = DMA_BIT_MASK(32),
283 .num_resources = ARRAY_SIZE(omap1_camera_resources),
284 .resource = omap1_camera_resources,
287 void __init omap1_camera_init(void *info)
289 struct platform_device *dev = &omap1_camera_device;
292 dev->dev.platform_data = info;
294 ret = platform_device_register(dev);
296 dev_err(&dev->dev, "unable to register device: %d\n", ret);
300 /*-------------------------------------------------------------------------*/
302 static inline void omap_init_sti(void) {}
304 /* Numbering for the SPI-capable controllers when used for SPI:
311 #if defined(CONFIG_SPI_OMAP_UWIRE) || defined(CONFIG_SPI_OMAP_UWIRE_MODULE)
313 #define OMAP_UWIRE_BASE 0xfffb3000
315 static struct resource uwire_resources[] = {
317 .start = OMAP_UWIRE_BASE,
318 .end = OMAP_UWIRE_BASE + 0x20,
319 .flags = IORESOURCE_MEM,
323 static struct platform_device omap_uwire_device = {
324 .name = "omap_uwire",
326 .num_resources = ARRAY_SIZE(uwire_resources),
327 .resource = uwire_resources,
330 static void omap_init_uwire(void)
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...
337 /* board-specific code must configure chipselects (only a few
338 * are normally used) and SCLK/SDI/SDO (each has two choices).
340 (void) platform_device_register(&omap_uwire_device);
343 static inline void omap_init_uwire(void) {}
348 * This gets called after board-specific INIT_MACHINE, and initializes most
349 * on-chip peripherals accessible on this board (except for few like USB):
351 * (a) Does any "standard config" pin muxing needed. Board-specific
352 * code will have muxed GPIO pins and done "nonstandard" setup;
353 * that code could live in the boot loader.
354 * (b) Populating board-specific platform_data with the data drivers
355 * rely on to handle wiring variations.
356 * (c) Creating platform devices as meaningful on this board and
357 * with this kernel configuration.
359 * Claiming GPIOs, and setting their direction and initial values, is the
360 * responsibility of the device drivers. So is responding to probe().
362 * Board-specific knowledge like creating devices or pin setup is to be
363 * kept out of drivers as much as possible. In particular, pin setup
364 * may be handled by the boot loader, and drivers should expect it will
365 * normally have been done by the time they're probed.
367 static int __init omap1_init_devices(void)
369 if (!cpu_class_is_omap1())
373 omap1_clk_late_init();
375 /* please keep these calls, and their implementations above,
376 * in alphabetical order so they're easier to sort through.
388 arch_initcall(omap1_init_devices);
390 #if defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE)
392 static struct resource wdt_resources[] = {
396 .flags = IORESOURCE_MEM,
400 static struct platform_device omap_wdt_device = {
403 .num_resources = ARRAY_SIZE(wdt_resources),
404 .resource = wdt_resources,
407 static int __init omap_init_wdt(void)
409 if (!cpu_is_omap16xx())
412 return platform_device_register(&omap_wdt_device);
414 subsys_initcall(omap_init_wdt);