| /* |
| * linux/arch/arm/plat-omap/devices.c |
| * |
| * Common platform device setup/initialization for OMAP1 and OMAP2 |
| * |
| * 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/config.h> |
| #include <linux/module.h> |
| #include <linux/kernel.h> |
| #include <linux/init.h> |
| #include <linux/platform_device.h> |
| |
| #include <asm/hardware.h> |
| #include <asm/io.h> |
| #include <asm/mach-types.h> |
| #include <asm/mach/map.h> |
| |
| #include <asm/arch/tc.h> |
| #include <asm/arch/board.h> |
| #include <asm/arch/mux.h> |
| #include <asm/arch/gpio.h> |
| #include <asm/arch/menelaus.h> |
| |
| #if defined(CONFIG_I2C_OMAP) || defined(CONFIG_I2C_OMAP_MODULE) |
| |
| #define OMAP1_I2C_BASE 0xfffb3800 |
| #define OMAP2_I2C_BASE1 0x48070000 |
| #define OMAP_I2C_SIZE 0x3f |
| #define OMAP1_I2C_INT INT_I2C |
| #define OMAP2_I2C_INT1 56 |
| |
| static struct resource i2c_resources1[] = { |
| { |
| .start = 0, |
| .end = 0, |
| .flags = IORESOURCE_MEM, |
| }, |
| { |
| .start = 0, |
| .flags = IORESOURCE_IRQ, |
| }, |
| }; |
| |
| /* DMA not used; works around erratum writing to non-empty i2c fifo */ |
| |
| static struct platform_device omap_i2c_device1 = { |
| .name = "i2c_omap", |
| .id = 1, |
| .num_resources = ARRAY_SIZE(i2c_resources1), |
| .resource = i2c_resources1, |
| }; |
| |
| /* See also arch/arm/mach-omap2/devices.c for second I2C on 24xx */ |
| static void omap_init_i2c(void) |
| { |
| if (cpu_is_omap24xx()) { |
| i2c_resources1[0].start = OMAP2_I2C_BASE1; |
| i2c_resources1[0].end = OMAP2_I2C_BASE1 + OMAP_I2C_SIZE; |
| i2c_resources1[1].start = OMAP2_I2C_INT1; |
| } else { |
| i2c_resources1[0].start = OMAP1_I2C_BASE; |
| i2c_resources1[0].end = OMAP1_I2C_BASE + OMAP_I2C_SIZE; |
| i2c_resources1[1].start = OMAP1_I2C_INT; |
| } |
| |
| /* FIXME define and use a boot tag, in case of boards that |
| * either don't wire up I2C, or chips that mux it differently... |
| * it can include clocking and address info, maybe more. |
| */ |
| if (cpu_is_omap24xx()) { |
| omap_cfg_reg(M19_24XX_I2C1_SCL); |
| omap_cfg_reg(L15_24XX_I2C1_SDA); |
| } else { |
| omap_cfg_reg(I2C_SCL); |
| omap_cfg_reg(I2C_SDA); |
| } |
| |
| (void) platform_device_register(&omap_i2c_device1); |
| } |
| |
| #else |
| static inline void omap_init_i2c(void) {} |
| #endif |
| |
| /*-------------------------------------------------------------------------*/ |
| #if defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE) |
| |
| static void omap_init_kp(void) |
| { |
| if (machine_is_omap_h2() || machine_is_omap_h3()) { |
| omap_cfg_reg(F18_1610_KBC0); |
| omap_cfg_reg(D20_1610_KBC1); |
| omap_cfg_reg(D19_1610_KBC2); |
| omap_cfg_reg(E18_1610_KBC3); |
| omap_cfg_reg(C21_1610_KBC4); |
| |
| omap_cfg_reg(G18_1610_KBR0); |
| omap_cfg_reg(F19_1610_KBR1); |
| omap_cfg_reg(H14_1610_KBR2); |
| omap_cfg_reg(E20_1610_KBR3); |
| omap_cfg_reg(E19_1610_KBR4); |
| omap_cfg_reg(N19_1610_KBR5); |
| } else if (machine_is_omap_perseus2()) { |
| omap_cfg_reg(E2_730_KBR0); |
| omap_cfg_reg(J7_730_KBR1); |
| omap_cfg_reg(E1_730_KBR2); |
| omap_cfg_reg(F3_730_KBR3); |
| omap_cfg_reg(D2_730_KBR4); |
| |
| omap_cfg_reg(C2_730_KBC0); |
| omap_cfg_reg(D3_730_KBC1); |
| omap_cfg_reg(E4_730_KBC2); |
| omap_cfg_reg(F4_730_KBC3); |
| omap_cfg_reg(E3_730_KBC4); |
| } else if (machine_is_omap_h4()) { |
| omap_cfg_reg(T19_24XX_KBR0); |
| omap_cfg_reg(R19_24XX_KBR1); |
| omap_cfg_reg(V18_24XX_KBR2); |
| omap_cfg_reg(M21_24XX_KBR3); |
| omap_cfg_reg(E5__24XX_KBR4); |
| if (omap_has_menelaus()) { |
| omap_cfg_reg(B3__24XX_KBR5); |
| omap_cfg_reg(AA4_24XX_KBC2); |
| omap_cfg_reg(B13_24XX_KBC6); |
| } else { |
| omap_cfg_reg(M18_24XX_KBR5); |
| omap_cfg_reg(H19_24XX_KBC2); |
| omap_cfg_reg(N19_24XX_KBC6); |
| } |
| omap_cfg_reg(R20_24XX_KBC0); |
| omap_cfg_reg(M14_24XX_KBC1); |
| omap_cfg_reg(V17_24XX_KBC3); |
| omap_cfg_reg(P21_24XX_KBC4); |
| omap_cfg_reg(L14_24XX_KBC5); |
| } |
| } |
| #else |
| static inline void omap_init_kp(void) {} |
| #endif |
| |
| /*-------------------------------------------------------------------------*/ |
| |
| #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) |
| |
| #ifdef CONFIG_ARCH_OMAP24XX |
| #define OMAP_MMC1_BASE 0x4809c000 |
| #define OMAP_MMC1_INT 83 |
| #else |
| #define OMAP_MMC1_BASE 0xfffb7800 |
| #define OMAP_MMC1_INT INT_MMC |
| #endif |
| #define OMAP_MMC2_BASE 0xfffb7c00 /* omap16xx only */ |
| |
| static struct omap_mmc_conf mmc1_conf; |
| |
| static u64 mmc1_dmamask = 0xffffffff; |
| |
| static struct resource mmc1_resources[] = { |
| { |
| .start = IO_ADDRESS(OMAP_MMC1_BASE), |
| .end = IO_ADDRESS(OMAP_MMC1_BASE) + 0x7f, |
| .flags = IORESOURCE_MEM, |
| }, |
| { |
| .start = OMAP_MMC1_INT, |
| .flags = IORESOURCE_IRQ, |
| }, |
| }; |
| |
| static struct platform_device mmc_omap_device1 = { |
| .name = "mmci-omap", |
| .id = 1, |
| .dev = { |
| .dma_mask = &mmc1_dmamask, |
| .platform_data = &mmc1_conf, |
| }, |
| .num_resources = ARRAY_SIZE(mmc1_resources), |
| .resource = mmc1_resources, |
| }; |
| |
| #ifdef CONFIG_ARCH_OMAP16XX |
| |
| static struct omap_mmc_conf mmc2_conf; |
| |
| static u64 mmc2_dmamask = 0xffffffff; |
| |
| static struct resource mmc2_resources[] = { |
| { |
| .start = IO_ADDRESS(OMAP_MMC2_BASE), |
| .end = IO_ADDRESS(OMAP_MMC2_BASE) + 0x7f, |
| .flags = IORESOURCE_MEM, |
| }, |
| { |
| .start = INT_1610_MMC2, |
| .flags = IORESOURCE_IRQ, |
| }, |
| }; |
| |
| static struct platform_device mmc_omap_device2 = { |
| .name = "mmci-omap", |
| .id = 2, |
| .dev = { |
| .dma_mask = &mmc2_dmamask, |
| .platform_data = &mmc2_conf, |
| }, |
| .num_resources = ARRAY_SIZE(mmc2_resources), |
| .resource = mmc2_resources, |
| }; |
| #endif |
| |
| static void __init omap_init_mmc(void) |
| { |
| const struct omap_mmc_config *mmc_conf; |
| const struct omap_mmc_conf *mmc; |
| |
| /* NOTE: assumes MMC was never (wrongly) enabled */ |
| mmc_conf = omap_get_config(OMAP_TAG_MMC, struct omap_mmc_config); |
| if (!mmc_conf) |
| return; |
| |
| /* block 1 is always available and has just one pinout option */ |
| mmc = &mmc_conf->mmc[0]; |
| if (mmc->enabled) { |
| if (!cpu_is_omap24xx()) { |
| 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->wire4) { |
| if (!cpu_is_omap24xx()) { |
| omap_cfg_reg(MMC_DAT1); |
| /* NOTE: DAT2 can be on W10 (here) or M15 */ |
| if (!mmc->nomux) |
| omap_cfg_reg(MMC_DAT2); |
| omap_cfg_reg(MMC_DAT3); |
| } |
| } |
| mmc1_conf = *mmc; |
| (void) platform_device_register(&mmc_omap_device1); |
| } |
| |
| #ifdef CONFIG_ARCH_OMAP16XX |
| /* block 2 is on newer chips, and has many pinout options */ |
| mmc = &mmc_conf->mmc[1]; |
| if (mmc->enabled) { |
| if (!mmc->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->wire4) { |
| 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); |
| mmc2_conf = *mmc; |
| (void) platform_device_register(&mmc_omap_device2); |
| } |
| #endif |
| return; |
| } |
| #else |
| static inline void omap_init_mmc(void) {} |
| #endif |
| |
| /*-------------------------------------------------------------------------*/ |
| |
| /* 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 |
| |
| /*-------------------------------------------------------------------------*/ |
| |
| #if defined(CONFIG_OMAP_WATCHDOG) || defined(CONFIG_OMAP_WATCHDOG_MODULE) |
| |
| #ifdef CONFIG_ARCH_OMAP24XX |
| #define OMAP_WDT_BASE 0x48022000 |
| #else |
| #define OMAP_WDT_BASE 0xfffeb000 |
| #endif |
| |
| static struct resource wdt_resources[] = { |
| { |
| .start = OMAP_WDT_BASE, |
| .end = OMAP_WDT_BASE + 0x4f, |
| .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 void omap_init_wdt(void) |
| { |
| (void) platform_device_register(&omap_wdt_device); |
| } |
| #else |
| static inline void omap_init_wdt(void) {} |
| #endif |
| |
| /*-------------------------------------------------------------------------*/ |
| |
| #if defined(CONFIG_OMAP_RNG) || defined(CONFIG_OMAP_RNG_MODULE) |
| |
| #ifdef CONFIG_ARCH_OMAP24XX |
| #define OMAP_RNG_BASE 0x480A0000 |
| #else |
| #define OMAP_RNG_BASE 0xfffe5000 |
| #endif |
| |
| static struct resource rng_resources[] = { |
| { |
| .start = OMAP_RNG_BASE, |
| .end = OMAP_RNG_BASE + 0x4f, |
| .flags = IORESOURCE_MEM, |
| }, |
| }; |
| |
| static struct platform_device omap_rng_device = { |
| .name = "omap_rng", |
| .id = -1, |
| .num_resources = ARRAY_SIZE(rng_resources), |
| .resource = rng_resources, |
| }; |
| |
| static void omap_init_rng(void) |
| { |
| (void) platform_device_register(&omap_rng_device); |
| } |
| #else |
| static inline void omap_init_rng(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 omap_init_devices(void) |
| { |
| /* please keep these calls, and their implementations above, |
| * in alphabetical order so they're easier to sort through. |
| */ |
| omap_init_i2c(); |
| omap_init_kp(); |
| omap_init_mmc(); |
| omap_init_uwire(); |
| omap_init_wdt(); |
| omap_init_rng(); |
| |
| return 0; |
| } |
| arch_initcall(omap_init_devices); |
| |