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/module.h>
14 #include <linux/kernel.h>
15 #include <linux/init.h>
16 #include <linux/platform_device.h>
18 #include <linux/spi/spi.h>
20 #include <mach/hardware.h>
21 #include <asm/mach/map.h>
24 #include <plat/board.h>
26 #include <mach/gpio.h>
28 #include <plat/omap7xx.h>
30 /*-------------------------------------------------------------------------*/
32 #if defined(CONFIG_RTC_DRV_OMAP) || defined(CONFIG_RTC_DRV_OMAP_MODULE)
34 #define OMAP_RTC_BASE 0xfffb4800
36 static struct resource rtc_resources[] = {
38 .start = OMAP_RTC_BASE,
39 .end = OMAP_RTC_BASE + 0x5f,
40 .flags = IORESOURCE_MEM,
43 .start = INT_RTC_TIMER,
44 .flags = IORESOURCE_IRQ,
47 .start = INT_RTC_ALARM,
48 .flags = IORESOURCE_IRQ,
52 static struct platform_device omap_rtc_device = {
55 .num_resources = ARRAY_SIZE(rtc_resources),
56 .resource = rtc_resources,
59 static void omap_init_rtc(void)
61 (void) platform_device_register(&omap_rtc_device);
64 static inline void omap_init_rtc(void) {}
67 static inline void omap_init_mbox(void) { }
69 /*-------------------------------------------------------------------------*/
71 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE)
73 static inline void omap1_mmc_mux(struct omap_mmc_platform_data *mmc_controller,
76 if (controller_nr == 0) {
77 if (cpu_is_omap7xx()) {
78 omap_cfg_reg(MMC_7XX_CMD);
79 omap_cfg_reg(MMC_7XX_CLK);
80 omap_cfg_reg(MMC_7XX_DAT0);
82 omap_cfg_reg(MMC_CMD);
83 omap_cfg_reg(MMC_CLK);
84 omap_cfg_reg(MMC_DAT0);
87 if (cpu_is_omap1710()) {
88 omap_cfg_reg(M15_1710_MMC_CLKI);
89 omap_cfg_reg(P19_1710_MMC_CMDDIR);
90 omap_cfg_reg(P20_1710_MMC_DATDIR0);
92 if (mmc_controller->slots[0].wires == 4 && !cpu_is_omap7xx()) {
93 omap_cfg_reg(MMC_DAT1);
94 /* NOTE: DAT2 can be on W10 (here) or M15 */
95 if (!mmc_controller->slots[0].nomux)
96 omap_cfg_reg(MMC_DAT2);
97 omap_cfg_reg(MMC_DAT3);
101 /* Block 2 is on newer chips, and has many pinout options */
102 if (cpu_is_omap16xx() && controller_nr == 1) {
103 if (!mmc_controller->slots[1].nomux) {
104 omap_cfg_reg(Y8_1610_MMC2_CMD);
105 omap_cfg_reg(Y10_1610_MMC2_CLK);
106 omap_cfg_reg(R18_1610_MMC2_CLKIN);
107 omap_cfg_reg(W8_1610_MMC2_DAT0);
108 if (mmc_controller->slots[1].wires == 4) {
109 omap_cfg_reg(V8_1610_MMC2_DAT1);
110 omap_cfg_reg(W15_1610_MMC2_DAT2);
111 omap_cfg_reg(R10_1610_MMC2_DAT3);
114 /* These are needed for the level shifter */
115 omap_cfg_reg(V9_1610_MMC2_CMDDIR);
116 omap_cfg_reg(V5_1610_MMC2_DATDIR0);
117 omap_cfg_reg(W19_1610_MMC2_DATDIR1);
120 /* Feedback clock must be set on OMAP-1710 MMC2 */
121 if (cpu_is_omap1710())
122 omap_writel(omap_readl(MOD_CONF_CTRL_1) | (1 << 24),
127 void __init omap1_init_mmc(struct omap_mmc_platform_data **mmc_data,
132 for (i = 0; i < nr_controllers; i++) {
133 unsigned long base, size;
134 unsigned int irq = 0;
139 omap1_mmc_mux(mmc_data[i], i);
143 base = OMAP1_MMC1_BASE;
147 if (!cpu_is_omap16xx())
149 base = OMAP1_MMC2_BASE;
155 size = OMAP1_MMC_SIZE;
157 omap_mmc_add("mmci-omap", i, base, size, irq, mmc_data[i]);
163 /*-------------------------------------------------------------------------*/
165 /* OMAP7xx SPI support */
166 #if defined(CONFIG_SPI_OMAP_100K) || defined(CONFIG_SPI_OMAP_100K_MODULE)
168 struct platform_device omap_spi1 = {
169 .name = "omap1_spi100k",
173 struct platform_device omap_spi2 = {
174 .name = "omap1_spi100k",
178 static void omap_init_spi100k(void)
180 omap_spi1.dev.platform_data = ioremap(OMAP7XX_SPI1_BASE, 0x7ff);
181 if (omap_spi1.dev.platform_data)
182 platform_device_register(&omap_spi1);
184 omap_spi2.dev.platform_data = ioremap(OMAP7XX_SPI2_BASE, 0x7ff);
185 if (omap_spi2.dev.platform_data)
186 platform_device_register(&omap_spi2);
190 static inline void omap_init_spi100k(void)
196 #define OMAP1_CAMERA_BASE 0xfffb6800
197 #define OMAP1_CAMERA_IOSIZE 0x1c
199 static struct resource omap1_camera_resources[] = {
201 .start = OMAP1_CAMERA_BASE,
202 .end = OMAP1_CAMERA_BASE + OMAP1_CAMERA_IOSIZE - 1,
203 .flags = IORESOURCE_MEM,
207 .flags = IORESOURCE_IRQ,
211 static u64 omap1_camera_dma_mask = DMA_BIT_MASK(32);
213 static struct platform_device omap1_camera_device = {
214 .name = "omap1-camera",
215 .id = 0, /* This is used to put cameras on this interface */
217 .dma_mask = &omap1_camera_dma_mask,
218 .coherent_dma_mask = DMA_BIT_MASK(32),
220 .num_resources = ARRAY_SIZE(omap1_camera_resources),
221 .resource = omap1_camera_resources,
224 void __init omap1_camera_init(void *info)
226 struct platform_device *dev = &omap1_camera_device;
229 dev->dev.platform_data = info;
231 ret = platform_device_register(dev);
233 dev_err(&dev->dev, "unable to register device: %d\n", ret);
237 /*-------------------------------------------------------------------------*/
239 static inline void omap_init_sti(void) {}
241 /*-------------------------------------------------------------------------*/
244 * This gets called after board-specific INIT_MACHINE, and initializes most
245 * on-chip peripherals accessible on this board (except for few like USB):
247 * (a) Does any "standard config" pin muxing needed. Board-specific
248 * code will have muxed GPIO pins and done "nonstandard" setup;
249 * that code could live in the boot loader.
250 * (b) Populating board-specific platform_data with the data drivers
251 * rely on to handle wiring variations.
252 * (c) Creating platform devices as meaningful on this board and
253 * with this kernel configuration.
255 * Claiming GPIOs, and setting their direction and initial values, is the
256 * responsibility of the device drivers. So is responding to probe().
258 * Board-specific knowlege like creating devices or pin setup is to be
259 * kept out of drivers as much as possible. In particular, pin setup
260 * may be handled by the boot loader, and drivers should expect it will
261 * normally have been done by the time they're probed.
263 static int __init omap1_init_devices(void)
265 /* please keep these calls, and their implementations above,
266 * in alphabetical order so they're easier to sort through.
276 arch_initcall(omap1_init_devices);