|  | /* | 
|  | * linux/arch/arm/mach-omap1/devices.c | 
|  | * | 
|  | * OMAP1 platform device setup/initialization | 
|  | * | 
|  | * This program is free software; you can redistribute it and/or modify | 
|  | * it under the terms of the GNU General Public License as published by | 
|  | * the Free Software Foundation; either version 2 of the License, or | 
|  | * (at your option) any later version. | 
|  | */ | 
|  |  | 
|  | #include <linux/dma-mapping.h> | 
|  | #include <linux/module.h> | 
|  | #include <linux/kernel.h> | 
|  | #include <linux/init.h> | 
|  | #include <linux/platform_device.h> | 
|  | #include <linux/io.h> | 
|  | #include <linux/spi/spi.h> | 
|  |  | 
|  | #include <mach/camera.h> | 
|  | #include <mach/hardware.h> | 
|  | #include <asm/mach/map.h> | 
|  |  | 
|  | #include <plat/tc.h> | 
|  | #include <plat/board.h> | 
|  | #include <plat/mux.h> | 
|  | #include <mach/gpio.h> | 
|  | #include <plat/mmc.h> | 
|  | #include <plat/omap7xx.h> | 
|  | #include <plat/mcbsp.h> | 
|  |  | 
|  | /*-------------------------------------------------------------------------*/ | 
|  |  | 
|  | #if defined(CONFIG_RTC_DRV_OMAP) || defined(CONFIG_RTC_DRV_OMAP_MODULE) | 
|  |  | 
|  | #define	OMAP_RTC_BASE		0xfffb4800 | 
|  |  | 
|  | static struct resource rtc_resources[] = { | 
|  | { | 
|  | .start		= OMAP_RTC_BASE, | 
|  | .end		= OMAP_RTC_BASE + 0x5f, | 
|  | .flags		= IORESOURCE_MEM, | 
|  | }, | 
|  | { | 
|  | .start		= INT_RTC_TIMER, | 
|  | .flags		= IORESOURCE_IRQ, | 
|  | }, | 
|  | { | 
|  | .start		= INT_RTC_ALARM, | 
|  | .flags		= IORESOURCE_IRQ, | 
|  | }, | 
|  | }; | 
|  |  | 
|  | static struct platform_device omap_rtc_device = { | 
|  | .name           = "omap_rtc", | 
|  | .id             = -1, | 
|  | .num_resources	= ARRAY_SIZE(rtc_resources), | 
|  | .resource	= rtc_resources, | 
|  | }; | 
|  |  | 
|  | static void omap_init_rtc(void) | 
|  | { | 
|  | (void) platform_device_register(&omap_rtc_device); | 
|  | } | 
|  | #else | 
|  | static inline void omap_init_rtc(void) {} | 
|  | #endif | 
|  |  | 
|  | static inline void omap_init_mbox(void) { } | 
|  |  | 
|  | /*-------------------------------------------------------------------------*/ | 
|  |  | 
|  | #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) | 
|  |  | 
|  | static inline void omap1_mmc_mux(struct omap_mmc_platform_data *mmc_controller, | 
|  | int controller_nr) | 
|  | { | 
|  | if (controller_nr == 0) { | 
|  | if (cpu_is_omap7xx()) { | 
|  | omap_cfg_reg(MMC_7XX_CMD); | 
|  | omap_cfg_reg(MMC_7XX_CLK); | 
|  | omap_cfg_reg(MMC_7XX_DAT0); | 
|  | } else { | 
|  | omap_cfg_reg(MMC_CMD); | 
|  | omap_cfg_reg(MMC_CLK); | 
|  | omap_cfg_reg(MMC_DAT0); | 
|  | } | 
|  |  | 
|  | if (cpu_is_omap1710()) { | 
|  | omap_cfg_reg(M15_1710_MMC_CLKI); | 
|  | omap_cfg_reg(P19_1710_MMC_CMDDIR); | 
|  | omap_cfg_reg(P20_1710_MMC_DATDIR0); | 
|  | } | 
|  | if (mmc_controller->slots[0].wires == 4 && !cpu_is_omap7xx()) { | 
|  | omap_cfg_reg(MMC_DAT1); | 
|  | /* NOTE: DAT2 can be on W10 (here) or M15 */ | 
|  | if (!mmc_controller->slots[0].nomux) | 
|  | omap_cfg_reg(MMC_DAT2); | 
|  | omap_cfg_reg(MMC_DAT3); | 
|  | } | 
|  | } | 
|  |  | 
|  | /* Block 2 is on newer chips, and has many pinout options */ | 
|  | if (cpu_is_omap16xx() && controller_nr == 1) { | 
|  | if (!mmc_controller->slots[1].nomux) { | 
|  | omap_cfg_reg(Y8_1610_MMC2_CMD); | 
|  | omap_cfg_reg(Y10_1610_MMC2_CLK); | 
|  | omap_cfg_reg(R18_1610_MMC2_CLKIN); | 
|  | omap_cfg_reg(W8_1610_MMC2_DAT0); | 
|  | if (mmc_controller->slots[1].wires == 4) { | 
|  | omap_cfg_reg(V8_1610_MMC2_DAT1); | 
|  | omap_cfg_reg(W15_1610_MMC2_DAT2); | 
|  | omap_cfg_reg(R10_1610_MMC2_DAT3); | 
|  | } | 
|  |  | 
|  | /* These are needed for the level shifter */ | 
|  | omap_cfg_reg(V9_1610_MMC2_CMDDIR); | 
|  | omap_cfg_reg(V5_1610_MMC2_DATDIR0); | 
|  | omap_cfg_reg(W19_1610_MMC2_DATDIR1); | 
|  | } | 
|  |  | 
|  | /* Feedback clock must be set on OMAP-1710 MMC2 */ | 
|  | if (cpu_is_omap1710()) | 
|  | omap_writel(omap_readl(MOD_CONF_CTRL_1) | (1 << 24), | 
|  | MOD_CONF_CTRL_1); | 
|  | } | 
|  | } | 
|  |  | 
|  | void __init omap1_init_mmc(struct omap_mmc_platform_data **mmc_data, | 
|  | int nr_controllers) | 
|  | { | 
|  | int i; | 
|  |  | 
|  | for (i = 0; i < nr_controllers; i++) { | 
|  | unsigned long base, size; | 
|  | unsigned int irq = 0; | 
|  |  | 
|  | if (!mmc_data[i]) | 
|  | continue; | 
|  |  | 
|  | omap1_mmc_mux(mmc_data[i], i); | 
|  |  | 
|  | switch (i) { | 
|  | case 0: | 
|  | base = OMAP1_MMC1_BASE; | 
|  | irq = INT_MMC; | 
|  | break; | 
|  | case 1: | 
|  | if (!cpu_is_omap16xx()) | 
|  | return; | 
|  | base = OMAP1_MMC2_BASE; | 
|  | irq = INT_1610_MMC2; | 
|  | break; | 
|  | default: | 
|  | continue; | 
|  | } | 
|  | size = OMAP1_MMC_SIZE; | 
|  |  | 
|  | omap_mmc_add("mmci-omap", i, base, size, irq, mmc_data[i]); | 
|  | }; | 
|  | } | 
|  |  | 
|  | #endif | 
|  |  | 
|  | /*-------------------------------------------------------------------------*/ | 
|  |  | 
|  | /* OMAP7xx SPI support */ | 
|  | #if defined(CONFIG_SPI_OMAP_100K) || defined(CONFIG_SPI_OMAP_100K_MODULE) | 
|  |  | 
|  | struct platform_device omap_spi1 = { | 
|  | .name           = "omap1_spi100k", | 
|  | .id             = 1, | 
|  | }; | 
|  |  | 
|  | struct platform_device omap_spi2 = { | 
|  | .name           = "omap1_spi100k", | 
|  | .id             = 2, | 
|  | }; | 
|  |  | 
|  | static void omap_init_spi100k(void) | 
|  | { | 
|  | omap_spi1.dev.platform_data = ioremap(OMAP7XX_SPI1_BASE, 0x7ff); | 
|  | if (omap_spi1.dev.platform_data) | 
|  | platform_device_register(&omap_spi1); | 
|  |  | 
|  | omap_spi2.dev.platform_data = ioremap(OMAP7XX_SPI2_BASE, 0x7ff); | 
|  | if (omap_spi2.dev.platform_data) | 
|  | platform_device_register(&omap_spi2); | 
|  | } | 
|  |  | 
|  | #else | 
|  | static inline void omap_init_spi100k(void) | 
|  | { | 
|  | } | 
|  | #endif | 
|  |  | 
|  |  | 
|  | #define OMAP1_CAMERA_BASE	0xfffb6800 | 
|  | #define OMAP1_CAMERA_IOSIZE	0x1c | 
|  |  | 
|  | static struct resource omap1_camera_resources[] = { | 
|  | [0] = { | 
|  | .start	= OMAP1_CAMERA_BASE, | 
|  | .end	= OMAP1_CAMERA_BASE + OMAP1_CAMERA_IOSIZE - 1, | 
|  | .flags	= IORESOURCE_MEM, | 
|  | }, | 
|  | [1] = { | 
|  | .start	= INT_CAMERA, | 
|  | .flags	= IORESOURCE_IRQ, | 
|  | }, | 
|  | }; | 
|  |  | 
|  | static u64 omap1_camera_dma_mask = DMA_BIT_MASK(32); | 
|  |  | 
|  | static struct platform_device omap1_camera_device = { | 
|  | .name		= "omap1-camera", | 
|  | .id		= 0, /* This is used to put cameras on this interface */ | 
|  | .dev		= { | 
|  | .dma_mask		= &omap1_camera_dma_mask, | 
|  | .coherent_dma_mask	= DMA_BIT_MASK(32), | 
|  | }, | 
|  | .num_resources	= ARRAY_SIZE(omap1_camera_resources), | 
|  | .resource	= omap1_camera_resources, | 
|  | }; | 
|  |  | 
|  | void __init omap1_camera_init(void *info) | 
|  | { | 
|  | struct platform_device *dev = &omap1_camera_device; | 
|  | int ret; | 
|  |  | 
|  | dev->dev.platform_data = info; | 
|  |  | 
|  | ret = platform_device_register(dev); | 
|  | if (ret) | 
|  | dev_err(&dev->dev, "unable to register device: %d\n", ret); | 
|  | } | 
|  |  | 
|  |  | 
|  | /*-------------------------------------------------------------------------*/ | 
|  |  | 
|  | static inline void omap_init_sti(void) {} | 
|  |  | 
|  | #if defined(CONFIG_SND_SOC) || defined(CONFIG_SND_SOC_MODULE) | 
|  |  | 
|  | static struct platform_device omap_pcm = { | 
|  | .name	= "omap-pcm-audio", | 
|  | .id	= -1, | 
|  | }; | 
|  |  | 
|  | OMAP_MCBSP_PLATFORM_DEVICE(1); | 
|  | OMAP_MCBSP_PLATFORM_DEVICE(2); | 
|  | OMAP_MCBSP_PLATFORM_DEVICE(3); | 
|  |  | 
|  | static void omap_init_audio(void) | 
|  | { | 
|  | platform_device_register(&omap_mcbsp1); | 
|  | platform_device_register(&omap_mcbsp2); | 
|  | if (!cpu_is_omap7xx()) | 
|  | platform_device_register(&omap_mcbsp3); | 
|  | platform_device_register(&omap_pcm); | 
|  | } | 
|  |  | 
|  | #else | 
|  | static inline void omap_init_audio(void) {} | 
|  | #endif | 
|  |  | 
|  | /*-------------------------------------------------------------------------*/ | 
|  |  | 
|  | /* | 
|  | * This gets called after board-specific INIT_MACHINE, and initializes most | 
|  | * on-chip peripherals accessible on this board (except for few like USB): | 
|  | * | 
|  | *  (a) Does any "standard config" pin muxing needed.  Board-specific | 
|  | *	code will have muxed GPIO pins and done "nonstandard" setup; | 
|  | *	that code could live in the boot loader. | 
|  | *  (b) Populating board-specific platform_data with the data drivers | 
|  | *	rely on to handle wiring variations. | 
|  | *  (c) Creating platform devices as meaningful on this board and | 
|  | *	with this kernel configuration. | 
|  | * | 
|  | * Claiming GPIOs, and setting their direction and initial values, is the | 
|  | * responsibility of the device drivers.  So is responding to probe(). | 
|  | * | 
|  | * Board-specific knowlege like creating devices or pin setup is to be | 
|  | * kept out of drivers as much as possible.  In particular, pin setup | 
|  | * may be handled by the boot loader, and drivers should expect it will | 
|  | * normally have been done by the time they're probed. | 
|  | */ | 
|  | static int __init omap1_init_devices(void) | 
|  | { | 
|  | if (!cpu_class_is_omap1()) | 
|  | return -ENODEV; | 
|  |  | 
|  | /* please keep these calls, and their implementations above, | 
|  | * in alphabetical order so they're easier to sort through. | 
|  | */ | 
|  |  | 
|  | omap_init_mbox(); | 
|  | omap_init_rtc(); | 
|  | omap_init_spi100k(); | 
|  | omap_init_sti(); | 
|  | omap_init_audio(); | 
|  |  | 
|  | return 0; | 
|  | } | 
|  | arch_initcall(omap1_init_devices); | 
|  |  | 
|  | #if defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE) | 
|  |  | 
|  | static struct resource wdt_resources[] = { | 
|  | { | 
|  | .start		= 0xfffeb000, | 
|  | .end		= 0xfffeb07F, | 
|  | .flags		= IORESOURCE_MEM, | 
|  | }, | 
|  | }; | 
|  |  | 
|  | static struct platform_device omap_wdt_device = { | 
|  | .name	   = "omap_wdt", | 
|  | .id	     = -1, | 
|  | .num_resources	= ARRAY_SIZE(wdt_resources), | 
|  | .resource	= wdt_resources, | 
|  | }; | 
|  |  | 
|  | static int __init omap_init_wdt(void) | 
|  | { | 
|  | if (!cpu_is_omap16xx()) | 
|  | return -ENODEV; | 
|  |  | 
|  | return platform_device_register(&omap_wdt_device); | 
|  | } | 
|  | subsys_initcall(omap_init_wdt); | 
|  | #endif |