diff options
Diffstat (limited to 'arch/arm/mach-davinci/devices.c')
| -rw-r--r-- | arch/arm/mach-davinci/devices.c | 189 |
1 files changed, 136 insertions, 53 deletions
diff --git a/arch/arm/mach-davinci/devices.c b/arch/arm/mach-davinci/devices.c index de16f347566..6257aa45256 100644 --- a/arch/arm/mach-davinci/devices.c +++ b/arch/arm/mach-davinci/devices.c @@ -9,28 +9,49 @@ * (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/dma-mapping.h> #include <linux/io.h> - -#include <asm/mach/map.h> +#include <linux/reboot.h> #include <mach/hardware.h> -#include <mach/i2c.h> +#include <linux/platform_data/i2c-davinci.h> #include <mach/irqs.h> #include <mach/cputype.h> #include <mach/mux.h> -#include <mach/edma.h> -#include <mach/mmc.h> +#include <linux/platform_data/mmc-davinci.h> #include <mach/time.h> +#include <linux/platform_data/edma.h> + + +#include "davinci.h" +#include "clock.h" #define DAVINCI_I2C_BASE 0x01C21000 +#define DAVINCI_ATA_BASE 0x01C66000 #define DAVINCI_MMCSD0_BASE 0x01E10000 #define DM355_MMCSD0_BASE 0x01E11000 #define DM355_MMCSD1_BASE 0x01E00000 +#define DM365_MMCSD0_BASE 0x01D11000 +#define DM365_MMCSD1_BASE 0x01D00000 + +#define DAVINCI_DMA_MMCRXEVT 26 +#define DAVINCI_DMA_MMCTXEVT 27 + +void __iomem *davinci_sysmod_base; + +void davinci_map_sysmod(void) +{ + davinci_sysmod_base = ioremap_nocache(DAVINCI_SYSTEM_MODULE_BASE, + 0x800); + /* + * Throw a bug since a lot of board initialization code depends + * on system module availability. ioremap() failing this early + * need careful looking into anyway. + */ + BUG_ON(!davinci_sysmod_base); +} static struct resource i2c_resources[] = { { @@ -60,7 +81,50 @@ void __init davinci_init_i2c(struct davinci_i2c_platform_data *pdata) (void) platform_device_register(&davinci_i2c_device); } -#if defined(CONFIG_MMC_DAVINCI) || defined(CONFIG_MMC_DAVINCI_MODULE) +static struct resource ide_resources[] = { + { + .start = DAVINCI_ATA_BASE, + .end = DAVINCI_ATA_BASE + 0x7ff, + .flags = IORESOURCE_MEM, + }, + { + .start = IRQ_IDE, + .end = IRQ_IDE, + .flags = IORESOURCE_IRQ, + }, +}; + +static u64 ide_dma_mask = DMA_BIT_MASK(32); + +static struct platform_device ide_device = { + .name = "palm_bk3710", + .id = -1, + .resource = ide_resources, + .num_resources = ARRAY_SIZE(ide_resources), + .dev = { + .dma_mask = &ide_dma_mask, + .coherent_dma_mask = DMA_BIT_MASK(32), + }, +}; + +void __init davinci_init_ide(void) +{ + if (cpu_is_davinci_dm644x()) { + davinci_cfg_reg(DM644X_HPIEN_DISABLE); + davinci_cfg_reg(DM644X_ATAEN); + davinci_cfg_reg(DM644X_HDIREN); + } else if (cpu_is_davinci_dm646x()) { + /* IRQ_DM646X_IDE is the same as IRQ_IDE */ + davinci_cfg_reg(DM646X_ATAEN); + } else { + WARN_ON(1); + return; + } + + platform_device_register(&ide_device); +} + +#if IS_ENABLED(CONFIG_MMC_DAVINCI) static u64 mmcsd0_dma_mask = DMA_BIT_MASK(32); @@ -82,16 +146,16 @@ static struct resource mmcsd0_resources[] = { }, /* DMA channels: RX, then TX */ { - .start = DAVINCI_DMA_MMCRXEVT, + .start = EDMA_CTLR_CHAN(0, DAVINCI_DMA_MMCRXEVT), .flags = IORESOURCE_DMA, }, { - .start = DAVINCI_DMA_MMCTXEVT, + .start = EDMA_CTLR_CHAN(0, DAVINCI_DMA_MMCTXEVT), .flags = IORESOURCE_DMA, }, }; static struct platform_device davinci_mmcsd0_device = { - .name = "davinci_mmc", + .name = "dm6441-mmc", .id = 0, .dev = { .dma_mask = &mmcsd0_dma_mask, @@ -119,16 +183,16 @@ static struct resource mmcsd1_resources[] = { }, /* DMA channels: RX, then TX */ { - .start = 30, /* rx */ + .start = EDMA_CTLR_CHAN(0, 30), /* rx */ .flags = IORESOURCE_DMA, }, { - .start = 31, /* tx */ + .start = EDMA_CTLR_CHAN(0, 31), /* tx */ .flags = IORESOURCE_DMA, }, }; static struct platform_device davinci_mmcsd1_device = { - .name = "davinci_mmc", + .name = "dm6441-mmc", .id = 1, .dev = { .dma_mask = &mmcsd1_dma_mask, @@ -154,19 +218,32 @@ void __init davinci_setup_mmc(int module, struct davinci_mmc_config *config) */ switch (module) { case 1: - if (!cpu_is_davinci_dm355()) + if (cpu_is_davinci_dm355()) { + /* REVISIT we may not need all these pins if e.g. this + * is a hard-wired SDIO device... + */ + davinci_cfg_reg(DM355_SD1_CMD); + davinci_cfg_reg(DM355_SD1_CLK); + davinci_cfg_reg(DM355_SD1_DATA0); + davinci_cfg_reg(DM355_SD1_DATA1); + davinci_cfg_reg(DM355_SD1_DATA2); + davinci_cfg_reg(DM355_SD1_DATA3); + } else if (cpu_is_davinci_dm365()) { + /* Configure pull down control */ + unsigned v; + + v = __raw_readl(DAVINCI_SYSMOD_VIRT(SYSMOD_PUPDCTL1)); + __raw_writel(v & ~0xfc0, + DAVINCI_SYSMOD_VIRT(SYSMOD_PUPDCTL1)); + + mmcsd1_resources[0].start = DM365_MMCSD1_BASE; + mmcsd1_resources[0].end = DM365_MMCSD1_BASE + + SZ_4K - 1; + mmcsd1_resources[2].start = IRQ_DM365_SDIOINT1; + davinci_mmcsd1_device.name = "da830-mmc"; + } else break; - /* REVISIT we may not need all these pins if e.g. this - * is a hard-wired SDIO device... - */ - davinci_cfg_reg(DM355_SD1_CMD); - davinci_cfg_reg(DM355_SD1_CLK); - davinci_cfg_reg(DM355_SD1_DATA0); - davinci_cfg_reg(DM355_SD1_DATA1); - davinci_cfg_reg(DM355_SD1_DATA2); - davinci_cfg_reg(DM355_SD1_DATA3); - pdev = &davinci_mmcsd1_device; break; case 0: @@ -180,15 +257,17 @@ void __init davinci_setup_mmc(int module, struct davinci_mmc_config *config) /* enable RX EDMA */ davinci_cfg_reg(DM355_EVT26_MMC0_RX); - } - - else if (cpu_is_davinci_dm644x()) { + } else if (cpu_is_davinci_dm365()) { + mmcsd0_resources[0].start = DM365_MMCSD0_BASE; + mmcsd0_resources[0].end = DM365_MMCSD0_BASE + + SZ_4K - 1; + mmcsd0_resources[2].start = IRQ_DM365_SDIOINT0; + davinci_mmcsd0_device.name = "da830-mmc"; + } else if (cpu_is_davinci_dm644x()) { /* REVISIT: should this be in board-init code? */ - void __iomem *base = - IO_ADDRESS(DAVINCI_SYSTEM_MODULE_BASE); - /* Power-on 3.3V IO cells */ - __raw_writel(0, base + DM64XX_VDD3P3V_PWDN); + __raw_writel(0, + DAVINCI_SYSMOD_VIRT(SYSMOD_VDD3P3VPWDN)); /*Set up the pull regiter for MMC */ davinci_cfg_reg(DM644X_MSTK); } @@ -216,52 +295,56 @@ void __init davinci_setup_mmc(int module, struct davinci_mmc_config *config) static struct resource wdt_resources[] = { { + .start = DAVINCI_WDOG_BASE, + .end = DAVINCI_WDOG_BASE + SZ_1K - 1, .flags = IORESOURCE_MEM, }, }; struct platform_device davinci_wdt_device = { - .name = "watchdog", + .name = "davinci-wdt", .id = -1, .num_resources = ARRAY_SIZE(wdt_resources), .resource = wdt_resources, }; -static void davinci_init_wdt(void) +void davinci_restart(enum reboot_mode mode, const char *cmd) +{ + davinci_watchdog_reset(&davinci_wdt_device); +} + +int davinci_init_wdt(void) { - struct davinci_soc_info *soc_info = &davinci_soc_info; + return platform_device_register(&davinci_wdt_device); +} - wdt_resources[0].start = (resource_size_t)soc_info->wdt_base; - wdt_resources[0].end = (resource_size_t)soc_info->wdt_base + SZ_1K - 1; +static struct platform_device davinci_gpio_device = { + .name = "davinci_gpio", + .id = -1, +}; - platform_device_register(&davinci_wdt_device); +int davinci_gpio_register(struct resource *res, int size, void *pdata) +{ + davinci_gpio_device.resource = res; + davinci_gpio_device.num_resources = size; + davinci_gpio_device.dev.platform_data = pdata; + return platform_device_register(&davinci_gpio_device); } /*-------------------------------------------------------------------------*/ +/*-------------------------------------------------------------------------*/ + struct davinci_timer_instance davinci_timer_instance[2] = { { - .base = IO_ADDRESS(DAVINCI_TIMER0_BASE), + .base = DAVINCI_TIMER0_BASE, .bottom_irq = IRQ_TINT0_TINT12, .top_irq = IRQ_TINT0_TINT34, }, { - .base = IO_ADDRESS(DAVINCI_TIMER1_BASE), + .base = DAVINCI_TIMER1_BASE, .bottom_irq = IRQ_TINT1_TINT12, .top_irq = IRQ_TINT1_TINT34, }, }; -/*-------------------------------------------------------------------------*/ - -static int __init davinci_init_devices(void) -{ - /* please keep these calls, and their implementations above, - * in alphabetical order so they're easier to sort through. - */ - davinci_init_wdt(); - - return 0; -} -arch_initcall(davinci_init_devices); - |