| /* |
| * 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/gpio.h> |
| #include <linux/module.h> |
| #include <linux/kernel.h> |
| #include <linux/init.h> |
| #include <linux/platform_device.h> |
| #include <linux/spi/spi.h> |
| |
| #include <asm/mach/map.h> |
| |
| #include <mach/tc.h> |
| #include <mach/mux.h> |
| |
| #include <mach/omap7xx.h> |
| #include <mach/camera.h> |
| #include <mach/hardware.h> |
| |
| #include "../plat-omap/sram.h" |
| |
| #include "common.h" |
| #include "clock.h" |
| #include "dma.h" |
| #include "mmc.h" |
| |
| #if defined(CONFIG_SND_SOC) || defined(CONFIG_SND_SOC_MODULE) |
| |
| static struct platform_device omap_pcm = { |
| .name = "omap-pcm-audio", |
| .id = -1, |
| }; |
| |
| static void omap_init_audio(void) |
| { |
| platform_device_register(&omap_pcm); |
| } |
| |
| #else |
| static inline void omap_init_audio(void) {} |
| #endif |
| |
| /*-------------------------------------------------------------------------*/ |
| |
| #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); |
| } |
| } |
| |
| #define OMAP_MMC_NR_RES 4 |
| |
| /* |
| * Register MMC devices. |
| */ |
| static int __init omap_mmc_add(const char *name, int id, unsigned long base, |
| unsigned long size, unsigned int irq, |
| unsigned rx_req, unsigned tx_req, |
| struct omap_mmc_platform_data *data) |
| { |
| struct platform_device *pdev; |
| struct resource res[OMAP_MMC_NR_RES]; |
| int ret; |
| |
| pdev = platform_device_alloc(name, id); |
| if (!pdev) |
| return -ENOMEM; |
| |
| memset(res, 0, OMAP_MMC_NR_RES * sizeof(struct resource)); |
| res[0].start = base; |
| res[0].end = base + size - 1; |
| res[0].flags = IORESOURCE_MEM; |
| res[1].start = res[1].end = irq; |
| res[1].flags = IORESOURCE_IRQ; |
| res[2].start = rx_req; |
| res[2].name = "rx"; |
| res[2].flags = IORESOURCE_DMA; |
| res[3].start = tx_req; |
| res[3].name = "tx"; |
| res[3].flags = IORESOURCE_DMA; |
| |
| if (cpu_is_omap7xx()) |
| data->slots[0].features = MMC_OMAP7XX; |
| if (cpu_is_omap15xx()) |
| data->slots[0].features = MMC_OMAP15XX; |
| if (cpu_is_omap16xx()) |
| data->slots[0].features = MMC_OMAP16XX; |
| |
| ret = platform_device_add_resources(pdev, res, ARRAY_SIZE(res)); |
| if (ret == 0) |
| ret = platform_device_add_data(pdev, data, sizeof(*data)); |
| if (ret) |
| goto fail; |
| |
| ret = platform_device_add(pdev); |
| if (ret) |
| goto fail; |
| |
| /* return device handle to board setup code */ |
| data->dev = &pdev->dev; |
| return 0; |
| |
| fail: |
| platform_device_put(pdev); |
| return ret; |
| } |
| |
| 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 rx_req, tx_req; |
| 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; |
| rx_req = OMAP_DMA_MMC_RX; |
| tx_req = OMAP_DMA_MMC_TX; |
| break; |
| case 1: |
| if (!cpu_is_omap16xx()) |
| return; |
| base = OMAP1_MMC2_BASE; |
| irq = INT_1610_MMC2; |
| rx_req = OMAP_DMA_MMC2_RX; |
| tx_req = OMAP_DMA_MMC2_TX; |
| break; |
| default: |
| continue; |
| } |
| size = OMAP1_MMC_SIZE; |
| |
| omap_mmc_add("mmci-omap", i, base, size, irq, |
| rx_req, tx_req, 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) {} |
| |
| /* Numbering for the SPI-capable controllers when used for SPI: |
| * spi = 1 |
| * uwire = 2 |
| * mmc1..2 = 3..4 |
| * mcbsp1..3 = 5..7 |
| */ |
| |
| #if defined(CONFIG_SPI_OMAP_UWIRE) || defined(CONFIG_SPI_OMAP_UWIRE_MODULE) |
| |
| #define OMAP_UWIRE_BASE 0xfffb3000 |
| |
| static struct resource uwire_resources[] = { |
| { |
| .start = OMAP_UWIRE_BASE, |
| .end = OMAP_UWIRE_BASE + 0x20, |
| .flags = IORESOURCE_MEM, |
| }, |
| }; |
| |
| static struct platform_device omap_uwire_device = { |
| .name = "omap_uwire", |
| .id = -1, |
| .num_resources = ARRAY_SIZE(uwire_resources), |
| .resource = uwire_resources, |
| }; |
| |
| static void omap_init_uwire(void) |
| { |
| /* FIXME define and use a boot tag; not all boards will be hooking |
| * up devices to the microwire controller, and multi-board configs |
| * mean that CONFIG_SPI_OMAP_UWIRE may be configured anyway... |
| */ |
| |
| /* board-specific code must configure chipselects (only a few |
| * are normally used) and SCLK/SDI/SDO (each has two choices). |
| */ |
| (void) platform_device_register(&omap_uwire_device); |
| } |
| #else |
| static inline void omap_init_uwire(void) {} |
| #endif |
| |
| |
| #define OMAP1_RNG_BASE 0xfffe5000 |
| |
| static struct resource omap1_rng_resources[] = { |
| { |
| .start = OMAP1_RNG_BASE, |
| .end = OMAP1_RNG_BASE + 0x4f, |
| .flags = IORESOURCE_MEM, |
| }, |
| }; |
| |
| static struct platform_device omap1_rng_device = { |
| .name = "omap_rng", |
| .id = -1, |
| .num_resources = ARRAY_SIZE(omap1_rng_resources), |
| .resource = omap1_rng_resources, |
| }; |
| |
| static void omap1_init_rng(void) |
| { |
| if (!cpu_is_omap16xx()) |
| return; |
| |
| (void) platform_device_register(&omap1_rng_device); |
| } |
| |
| /*-------------------------------------------------------------------------*/ |
| |
| /* |
| * 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 knowledge 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; |
| |
| omap_sram_init(); |
| omap1_clk_late_init(); |
| |
| /* please keep these calls, and their implementations above, |
| * in alphabetical order so they're easier to sort through. |
| */ |
| |
| omap_init_audio(); |
| omap_init_mbox(); |
| omap_init_rtc(); |
| omap_init_spi100k(); |
| omap_init_sti(); |
| omap_init_uwire(); |
| omap1_init_rng(); |
| |
| 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 |