/* * mach-davinci/devices.c * * DaVinci 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 "clock.h" #define DAVINCI_I2C_BASE 0x01C21000 #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 static struct resource i2c_resources[] = { { .start = DAVINCI_I2C_BASE, .end = DAVINCI_I2C_BASE + 0x40, .flags = IORESOURCE_MEM, }, { .start = IRQ_I2C, .flags = IORESOURCE_IRQ, }, }; static struct platform_device davinci_i2c_device = { .name = "i2c_davinci", .id = 1, .num_resources = ARRAY_SIZE(i2c_resources), .resource = i2c_resources, }; void __init davinci_init_i2c(struct davinci_i2c_platform_data *pdata) { if (cpu_is_davinci_dm644x()) davinci_cfg_reg(DM644X_I2C); davinci_i2c_device.dev.platform_data = pdata; (void) platform_device_register(&davinci_i2c_device); } #if defined(CONFIG_MMC_DAVINCI) || defined(CONFIG_MMC_DAVINCI_MODULE) static u64 mmcsd0_dma_mask = DMA_BIT_MASK(32); static struct resource mmcsd0_resources[] = { { /* different on dm355 */ .start = DAVINCI_MMCSD0_BASE, .end = DAVINCI_MMCSD0_BASE + SZ_4K - 1, .flags = IORESOURCE_MEM, }, /* IRQs: MMC/SD, then SDIO */ { .start = IRQ_MMCINT, .flags = IORESOURCE_IRQ, }, { /* different on dm355 */ .start = IRQ_SDIOINT, .flags = IORESOURCE_IRQ, }, /* DMA channels: RX, then TX */ { .start = EDMA_CTLR_CHAN(0, DAVINCI_DMA_MMCRXEVT), .flags = IORESOURCE_DMA, }, { .start = EDMA_CTLR_CHAN(0, DAVINCI_DMA_MMCTXEVT), .flags = IORESOURCE_DMA, }, }; static struct platform_device davinci_mmcsd0_device = { .name = "davinci_mmc", .id = 0, .dev = { .dma_mask = &mmcsd0_dma_mask, .coherent_dma_mask = DMA_BIT_MASK(32), }, .num_resources = ARRAY_SIZE(mmcsd0_resources), .resource = mmcsd0_resources, }; static u64 mmcsd1_dma_mask = DMA_BIT_MASK(32); static struct resource mmcsd1_resources[] = { { .start = DM355_MMCSD1_BASE, .end = DM355_MMCSD1_BASE + SZ_4K - 1, .flags = IORESOURCE_MEM, }, /* IRQs: MMC/SD, then SDIO */ { .start = IRQ_DM355_MMCINT1, .flags = IORESOURCE_IRQ, }, { .start = IRQ_DM355_SDIOINT1, .flags = IORESOURCE_IRQ, }, /* DMA channels: RX, then TX */ { .start = EDMA_CTLR_CHAN(0, 30), /* rx */ .flags = IORESOURCE_DMA, }, { .start = EDMA_CTLR_CHAN(0, 31), /* tx */ .flags = IORESOURCE_DMA, }, }; static struct platform_device davinci_mmcsd1_device = { .name = "davinci_mmc", .id = 1, .dev = { .dma_mask = &mmcsd1_dma_mask, .coherent_dma_mask = DMA_BIT_MASK(32), }, .num_resources = ARRAY_SIZE(mmcsd1_resources), .resource = mmcsd1_resources, }; void __init davinci_setup_mmc(int module, struct davinci_mmc_config *config) { struct platform_device *pdev = NULL; if (WARN_ON(cpu_is_davinci_dm646x())) return; /* REVISIT: update PINMUX, ARM_IRQMUX, and EDMA_EVTMUX here too; * for example if MMCSD1 is used for SDIO, maybe DAT2 is unused. * * FIXME dm6441 (no MMC/SD), dm357 (one), and dm335 (two) are * not handled right here ... */ switch (module) { case 1: 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()) { void __iomem *pupdctl1 = IO_ADDRESS(DAVINCI_SYSTEM_MODULE_BASE + 0x7c); /* Configure pull down control */ __raw_writel((__raw_readl(pupdctl1) & ~0x400), 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; } else break; pdev = &davinci_mmcsd1_device; break; case 0: if (cpu_is_davinci_dm355()) { mmcsd0_resources[0].start = DM355_MMCSD0_BASE; mmcsd0_resources[0].end = DM355_MMCSD0_BASE + SZ_4K - 1; mmcsd0_resources[2].start = IRQ_DM355_SDIOINT0; /* expose all 6 MMC0 signals: CLK, CMD, DATA[0..3] */ davinci_cfg_reg(DM355_MMCSD0); /* enable RX EDMA */ davinci_cfg_reg(DM355_EVT26_MMC0_RX); } 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; } 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); /*Set up the pull regiter for MMC */ davinci_cfg_reg(DM644X_MSTK); } pdev = &davinci_mmcsd0_device; break; } if (WARN_ON(!pdev)) return; pdev->dev.platform_data = config; platform_device_register(pdev); } #else void __init davinci_setup_mmc(int module, struct davinci_mmc_config *config) { } #endif /*-------------------------------------------------------------------------*/ 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", .id = -1, .num_resources = ARRAY_SIZE(wdt_resources), .resource = wdt_resources, }; static void davinci_init_wdt(void) { platform_device_register(&davinci_wdt_device); } /*-------------------------------------------------------------------------*/ struct davinci_timer_instance davinci_timer_instance[2] = { { .base = IO_ADDRESS(DAVINCI_TIMER0_BASE), .bottom_irq = IRQ_TINT0_TINT12, .top_irq = IRQ_TINT0_TINT34, }, { .base = IO_ADDRESS(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);