/* * 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/module.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/platform_device.h> #include <linux/io.h> #include <mach/hardware.h> #include <asm/mach/map.h> #include <mach/tc.h> #include <mach/board.h> #include <mach/mux.h> #include <mach/gpio.h> #include <mach/mmc.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 #if defined(CONFIG_OMAP_DSP) || defined(CONFIG_OMAP_DSP_MODULE) #if defined(CONFIG_ARCH_OMAP15XX) # define OMAP1_MBOX_SIZE 0x23 # define INT_DSP_MAILBOX1 INT_1510_DSP_MAILBOX1 #elif defined(CONFIG_ARCH_OMAP16XX) # define OMAP1_MBOX_SIZE 0x2f # define INT_DSP_MAILBOX1 INT_1610_DSP_MAILBOX1 #endif #define OMAP1_MBOX_BASE IO_ADDRESS(OMAP16XX_MAILBOX_BASE) static struct resource mbox_resources[] = { { .start = OMAP1_MBOX_BASE, .end = OMAP1_MBOX_BASE + OMAP1_MBOX_SIZE, .flags = IORESOURCE_MEM, }, { .start = INT_DSP_MAILBOX1, .flags = IORESOURCE_IRQ, }, }; static struct platform_device mbox_device = { .name = "omap1-mailbox", .id = -1, .num_resources = ARRAY_SIZE(mbox_resources), .resource = mbox_resources, }; static inline void omap_init_mbox(void) { platform_device_register(&mbox_device); } #else static inline void omap_init_mbox(void) { } #endif /*-------------------------------------------------------------------------*/ #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) { 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) { 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 /*-------------------------------------------------------------------------*/ #if defined(CONFIG_OMAP_STI) #define OMAP1_STI_BASE 0xfffea000 #define OMAP1_STI_CHANNEL_BASE (OMAP1_STI_BASE + 0x400) static struct resource sti_resources[] = { { .start = OMAP1_STI_BASE, .end = OMAP1_STI_BASE + SZ_1K - 1, .flags = IORESOURCE_MEM, }, { .start = OMAP1_STI_CHANNEL_BASE, .end = OMAP1_STI_CHANNEL_BASE + SZ_1K - 1, .flags = IORESOURCE_MEM, }, { .start = INT_1610_STI, .flags = IORESOURCE_IRQ, } }; static struct platform_device sti_device = { .name = "sti", .id = -1, .num_resources = ARRAY_SIZE(sti_resources), .resource = sti_resources, }; static inline void omap_init_sti(void) { platform_device_register(&sti_device); } #else static inline void omap_init_sti(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) { /* 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_sti(); return 0; } arch_initcall(omap1_init_devices);