From 849369d6c66d3054688672f97d31fceb8e8230fb Mon Sep 17 00:00:00 2001 From: root Date: Fri, 25 Dec 2015 04:40:36 +0000 Subject: initial_commit --- arch/arm/mach-omap1/devices.c | 333 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 333 insertions(+) create mode 100644 arch/arm/mach-omap1/devices.c (limited to 'arch/arm/mach-omap1/devices.c') diff --git a/arch/arm/mach-omap1/devices.c b/arch/arm/mach-omap1/devices.c new file mode 100644 index 00000000..36f26c3f --- /dev/null +++ b/arch/arm/mach-omap1/devices.c @@ -0,0 +1,333 @@ +/* + * 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 +#include +#include +#include +#include +#include +#include + +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include + +/*-------------------------------------------------------------------------*/ + +#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 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; + + /* 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 -- cgit v1.2.3