/* * linux/arch/arm/mach-omap2/devices.c * * OMAP2 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 <linux/clk.h> #include <mach/hardware.h> #include <asm/mach-types.h> #include <asm/mach/map.h> #include <mach/control.h> #include <mach/tc.h> #include <mach/board.h> #include <mach/mux.h> #include <mach/gpio.h> #include <mach/eac.h> #include <mach/mmc.h> #if defined(CONFIG_OMAP_MBOX_FWK) || defined(CONFIG_OMAP_MBOX_FWK_MODULE) #define MBOX_REG_SIZE 0x120 static struct resource omap2_mbox_resources[] = { { .start = OMAP24XX_MAILBOX_BASE, .end = OMAP24XX_MAILBOX_BASE + MBOX_REG_SIZE - 1, .flags = IORESOURCE_MEM, }, { .start = INT_24XX_MAIL_U0_MPU, .flags = IORESOURCE_IRQ, }, { .start = INT_24XX_MAIL_U3_MPU, .flags = IORESOURCE_IRQ, }, }; static struct resource omap3_mbox_resources[] = { { .start = OMAP34XX_MAILBOX_BASE, .end = OMAP34XX_MAILBOX_BASE + MBOX_REG_SIZE - 1, .flags = IORESOURCE_MEM, }, { .start = INT_24XX_MAIL_U0_MPU, .flags = IORESOURCE_IRQ, }, }; static struct platform_device mbox_device = { .name = "omap2-mailbox", .id = -1, }; static inline void omap_init_mbox(void) { if (cpu_is_omap2420()) { mbox_device.num_resources = ARRAY_SIZE(omap2_mbox_resources); mbox_device.resource = omap2_mbox_resources; } else if (cpu_is_omap3430()) { mbox_device.num_resources = ARRAY_SIZE(omap3_mbox_resources); mbox_device.resource = omap3_mbox_resources; } else { pr_err("%s: platform not supported\n", __func__); return; } platform_device_register(&mbox_device); } #else static inline void omap_init_mbox(void) { } #endif /* CONFIG_OMAP_MBOX_FWK */ #if defined(CONFIG_OMAP_STI) #if defined(CONFIG_ARCH_OMAP2) #define OMAP2_STI_BASE 0x48068000 #define OMAP2_STI_CHANNEL_BASE 0x54000000 #define OMAP2_STI_IRQ 4 static struct resource sti_resources[] = { { .start = OMAP2_STI_BASE, .end = OMAP2_STI_BASE + 0x7ff, .flags = IORESOURCE_MEM, }, { .start = OMAP2_STI_CHANNEL_BASE, .end = OMAP2_STI_CHANNEL_BASE + SZ_64K - 1, .flags = IORESOURCE_MEM, }, { .start = OMAP2_STI_IRQ, .flags = IORESOURCE_IRQ, } }; #elif defined(CONFIG_ARCH_OMAP3) #define OMAP3_SDTI_BASE 0x54500000 #define OMAP3_SDTI_CHANNEL_BASE 0x54600000 static struct resource sti_resources[] = { { .start = OMAP3_SDTI_BASE, .end = OMAP3_SDTI_BASE + 0xFFF, .flags = IORESOURCE_MEM, }, { .start = OMAP3_SDTI_CHANNEL_BASE, .end = OMAP3_SDTI_CHANNEL_BASE + SZ_1M - 1, .flags = IORESOURCE_MEM, } }; #endif 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 #if defined(CONFIG_SPI_OMAP24XX) || defined(CONFIG_SPI_OMAP24XX_MODULE) #include <mach/mcspi.h> #define OMAP2_MCSPI1_BASE 0x48098000 #define OMAP2_MCSPI2_BASE 0x4809a000 #define OMAP2_MCSPI3_BASE 0x480b8000 #define OMAP2_MCSPI4_BASE 0x480ba000 static struct omap2_mcspi_platform_config omap2_mcspi1_config = { .num_cs = 4, }; static struct resource omap2_mcspi1_resources[] = { { .start = OMAP2_MCSPI1_BASE, .end = OMAP2_MCSPI1_BASE + 0xff, .flags = IORESOURCE_MEM, }, }; static struct platform_device omap2_mcspi1 = { .name = "omap2_mcspi", .id = 1, .num_resources = ARRAY_SIZE(omap2_mcspi1_resources), .resource = omap2_mcspi1_resources, .dev = { .platform_data = &omap2_mcspi1_config, }, }; static struct omap2_mcspi_platform_config omap2_mcspi2_config = { .num_cs = 2, }; static struct resource omap2_mcspi2_resources[] = { { .start = OMAP2_MCSPI2_BASE, .end = OMAP2_MCSPI2_BASE + 0xff, .flags = IORESOURCE_MEM, }, }; static struct platform_device omap2_mcspi2 = { .name = "omap2_mcspi", .id = 2, .num_resources = ARRAY_SIZE(omap2_mcspi2_resources), .resource = omap2_mcspi2_resources, .dev = { .platform_data = &omap2_mcspi2_config, }, }; #if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3) static struct omap2_mcspi_platform_config omap2_mcspi3_config = { .num_cs = 2, }; static struct resource omap2_mcspi3_resources[] = { { .start = OMAP2_MCSPI3_BASE, .end = OMAP2_MCSPI3_BASE + 0xff, .flags = IORESOURCE_MEM, }, }; static struct platform_device omap2_mcspi3 = { .name = "omap2_mcspi", .id = 3, .num_resources = ARRAY_SIZE(omap2_mcspi3_resources), .resource = omap2_mcspi3_resources, .dev = { .platform_data = &omap2_mcspi3_config, }, }; #endif #ifdef CONFIG_ARCH_OMAP3 static struct omap2_mcspi_platform_config omap2_mcspi4_config = { .num_cs = 1, }; static struct resource omap2_mcspi4_resources[] = { { .start = OMAP2_MCSPI4_BASE, .end = OMAP2_MCSPI4_BASE + 0xff, .flags = IORESOURCE_MEM, }, }; static struct platform_device omap2_mcspi4 = { .name = "omap2_mcspi", .id = 4, .num_resources = ARRAY_SIZE(omap2_mcspi4_resources), .resource = omap2_mcspi4_resources, .dev = { .platform_data = &omap2_mcspi4_config, }, }; #endif static void omap_init_mcspi(void) { platform_device_register(&omap2_mcspi1); platform_device_register(&omap2_mcspi2); #if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3) platform_device_register(&omap2_mcspi3); #endif #ifdef CONFIG_ARCH_OMAP3 platform_device_register(&omap2_mcspi4); #endif } #else static inline void omap_init_mcspi(void) {} #endif #ifdef CONFIG_SND_OMAP24XX_EAC #define OMAP2_EAC_BASE 0x48090000 static struct resource omap2_eac_resources[] = { { .start = OMAP2_EAC_BASE, .end = OMAP2_EAC_BASE + 0x109, .flags = IORESOURCE_MEM, }, }; static struct platform_device omap2_eac_device = { .name = "omap24xx-eac", .id = -1, .num_resources = ARRAY_SIZE(omap2_eac_resources), .resource = omap2_eac_resources, .dev = { .platform_data = NULL, }, }; void omap_init_eac(struct eac_platform_data *pdata) { omap2_eac_device.dev.platform_data = pdata; platform_device_register(&omap2_eac_device); } #else void omap_init_eac(struct eac_platform_data *pdata) {} #endif #ifdef CONFIG_OMAP_SHA1_MD5 static struct resource sha1_md5_resources[] = { { .start = OMAP24XX_SEC_SHA1MD5_BASE, .end = OMAP24XX_SEC_SHA1MD5_BASE + 0x64, .flags = IORESOURCE_MEM, }, { .start = INT_24XX_SHA1MD5, .flags = IORESOURCE_IRQ, } }; static struct platform_device sha1_md5_device = { .name = "OMAP SHA1/MD5", .id = -1, .num_resources = ARRAY_SIZE(sha1_md5_resources), .resource = sha1_md5_resources, }; static void omap_init_sha1_md5(void) { platform_device_register(&sha1_md5_device); } #else static inline void omap_init_sha1_md5(void) { } #endif /*-------------------------------------------------------------------------*/ #ifdef CONFIG_ARCH_OMAP3 #define MMCHS_SYSCONFIG 0x0010 #define MMCHS_SYSCONFIG_SWRESET (1 << 1) #define MMCHS_SYSSTATUS 0x0014 #define MMCHS_SYSSTATUS_RESETDONE (1 << 0) static struct platform_device dummy_pdev = { .dev = { .bus = &platform_bus_type, }, }; /** * omap_hsmmc_reset() - Full reset of each HS-MMC controller * * Ensure that each MMC controller is fully reset. Controllers * left in an unknown state (by bootloader) may prevent retention * or OFF-mode. This is especially important in cases where the * MMC driver is not enabled, _or_ built as a module. * * In order for reset to work, interface, functional and debounce * clocks must be enabled. The debounce clock comes from func_32k_clk * and is not under SW control, so we only enable i- and f-clocks. **/ static void __init omap_hsmmc_reset(void) { u32 i, nr_controllers = cpu_is_omap34xx() ? OMAP34XX_NR_MMC : OMAP24XX_NR_MMC; for (i = 0; i < nr_controllers; i++) { u32 v, base = 0; struct clk *iclk, *fclk; struct device *dev = &dummy_pdev.dev; switch (i) { case 0: base = OMAP2_MMC1_BASE; break; case 1: base = OMAP2_MMC2_BASE; break; case 2: base = OMAP3_MMC3_BASE; break; } dummy_pdev.id = i; iclk = clk_get(dev, "mmchs_ick"); if (iclk && clk_enable(iclk)) iclk = NULL; fclk = clk_get(dev, "mmchs_fck"); if (fclk && clk_enable(fclk)) fclk = NULL; if (!iclk || !fclk) { printk(KERN_WARNING "%s: Unable to enable clocks for MMC%d, " "cannot reset.\n", __func__, i); break; } omap_writel(MMCHS_SYSCONFIG_SWRESET, base + MMCHS_SYSCONFIG); v = omap_readl(base + MMCHS_SYSSTATUS); while (!(omap_readl(base + MMCHS_SYSSTATUS) & MMCHS_SYSSTATUS_RESETDONE)) cpu_relax(); if (fclk) { clk_disable(fclk); clk_put(fclk); } if (iclk) { clk_disable(iclk); clk_put(iclk); } } } #else static inline void omap_hsmmc_reset(void) {} #endif #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) || \ defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE) static inline void omap2_mmc_mux(struct omap_mmc_platform_data *mmc_controller, int controller_nr) { if (cpu_is_omap2420() && controller_nr == 0) { omap_cfg_reg(H18_24XX_MMC_CMD); omap_cfg_reg(H15_24XX_MMC_CLKI); omap_cfg_reg(G19_24XX_MMC_CLKO); omap_cfg_reg(F20_24XX_MMC_DAT0); omap_cfg_reg(F19_24XX_MMC_DAT_DIR0); omap_cfg_reg(G18_24XX_MMC_CMD_DIR); if (mmc_controller->slots[0].wires == 4) { omap_cfg_reg(H14_24XX_MMC_DAT1); omap_cfg_reg(E19_24XX_MMC_DAT2); omap_cfg_reg(D19_24XX_MMC_DAT3); omap_cfg_reg(E20_24XX_MMC_DAT_DIR1); omap_cfg_reg(F18_24XX_MMC_DAT_DIR2); omap_cfg_reg(E18_24XX_MMC_DAT_DIR3); } /* * Use internal loop-back in MMC/SDIO Module Input Clock * selection */ if (mmc_controller->slots[0].internal_clock) { u32 v = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0); v |= (1 << 24); omap_ctrl_writel(v, OMAP2_CONTROL_DEVCONF0); } } } void __init omap2_init_mmc(struct omap_mmc_platform_data **mmc_data, int nr_controllers) { int i; char *name; for (i = 0; i < nr_controllers; i++) { unsigned long base, size; unsigned int irq = 0; if (!mmc_data[i]) continue; omap2_mmc_mux(mmc_data[i], i); switch (i) { case 0: base = OMAP2_MMC1_BASE; irq = INT_24XX_MMC_IRQ; break; case 1: base = OMAP2_MMC2_BASE; irq = INT_24XX_MMC2_IRQ; break; case 2: if (!cpu_is_omap34xx()) return; base = OMAP3_MMC3_BASE; irq = INT_34XX_MMC3_IRQ; break; default: continue; } if (cpu_is_omap2420()) { size = OMAP2420_MMC_SIZE; name = "mmci-omap"; } else { size = HSMMC_SIZE; name = "mmci-omap-hs"; } omap_mmc_add(name, i, base, size, irq, mmc_data[i]); }; } #endif /*-------------------------------------------------------------------------*/ #if defined(CONFIG_HDQ_MASTER_OMAP) || defined(CONFIG_HDQ_MASTER_OMAP_MODULE) #if defined(CONFIG_ARCH_OMAP2430) || defined(CONFIG_ARCH_OMAP3430) #define OMAP_HDQ_BASE 0x480B2000 #endif static struct resource omap_hdq_resources[] = { { .start = OMAP_HDQ_BASE, .end = OMAP_HDQ_BASE + 0x1C, .flags = IORESOURCE_MEM, }, { .start = INT_24XX_HDQ_IRQ, .flags = IORESOURCE_IRQ, }, }; static struct platform_device omap_hdq_dev = { .name = "omap_hdq", .id = 0, .dev = { .platform_data = NULL, }, .num_resources = ARRAY_SIZE(omap_hdq_resources), .resource = omap_hdq_resources, }; static inline void omap_hdq_init(void) { (void) platform_device_register(&omap_hdq_dev); } #else static inline void omap_hdq_init(void) {} #endif /*-------------------------------------------------------------------------*/ static int __init omap2_init_devices(void) { /* please keep these calls, and their implementations above, * in alphabetical order so they're easier to sort through. */ omap_hsmmc_reset(); omap_init_mbox(); omap_init_mcspi(); omap_hdq_init(); omap_init_sti(); omap_init_sha1_md5(); return 0; } arch_initcall(omap2_init_devices);