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arch/arm/mach-omap1/devices.c
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/* * 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. */ |
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#include <linux/dma-mapping.h> |
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#include <linux/gpio.h> |
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#include <linux/module.h> #include <linux/kernel.h> #include <linux/init.h> |
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#include <linux/platform_device.h> |
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#include <linux/io.h> |
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#include <linux/spi/spi.h> |
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#include <mach/camera.h> |
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#include <mach/hardware.h> |
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#include <asm/mach/map.h> |
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#include "common.h" |
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#include <plat/tc.h> #include <plat/board.h> #include <plat/mux.h> |
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#include <plat/mmc.h> |
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#include <plat/omap7xx.h> |
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#include <plat/mcbsp.h> |
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#include "clock.h" |
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/*-------------------------------------------------------------------------*/ |
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#if defined(CONFIG_RTC_DRV_OMAP) || defined(CONFIG_RTC_DRV_OMAP_MODULE) |
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#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, |
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.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 |
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static inline void omap_init_mbox(void) { } |
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/*-------------------------------------------------------------------------*/ #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) { |
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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); } |
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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); } |
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if (mmc_controller->slots[0].wires == 4 && !cpu_is_omap7xx()) { |
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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); |
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if (mmc_controller->slots[1].wires == 4) { |
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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; |
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omap_mmc_add("mmci-omap", i, base, size, irq, mmc_data[i]); |
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}; } #endif /*-------------------------------------------------------------------------*/ |
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/* 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 |
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#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 ", ret); } |
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/*-------------------------------------------------------------------------*/ |
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static inline void omap_init_sti(void) {} |
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#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 |
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/*-------------------------------------------------------------------------*/ /* * 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(). * |
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* Board-specific knowledge like creating devices or pin setup is to be |
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* 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. */ |
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static int __init omap1_init_devices(void) |
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{ |
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if (!cpu_class_is_omap1()) return -ENODEV; |
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omap_sram_init(); |
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omap1_clk_late_init(); |
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/* please keep these calls, and their implementations above, * in alphabetical order so they're easier to sort through. */ |
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omap_init_mbox(); |
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omap_init_rtc(); |
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omap_init_spi100k(); |
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omap_init_sti(); |
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omap_init_audio(); |
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return 0; } |
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arch_initcall(omap1_init_devices); |
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#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()) |
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return -ENODEV; |
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return platform_device_register(&omap_wdt_device); |
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} subsys_initcall(omap_init_wdt); #endif |