This patch add platform devices for Synopsys DesignWare Multimedia Card Interface driver. Signed-off-by: Seungwon Jeon <tgih.jun@xxxxxxxxxxx> --- arch/arm/mach-exynos4/Kconfig | 12 ++++ arch/arm/mach-exynos4/Makefile | 1 + arch/arm/mach-exynos4/dev-dwmci.c | 88 +++++++++++++++++++++++++++++ arch/arm/mach-exynos4/include/mach/irqs.h | 1 + arch/arm/mach-exynos4/include/mach/map.h | 1 + arch/arm/plat-samsung/include/plat/devs.h | 1 + 6 files changed, 104 insertions(+), 0 deletions(-) create mode 100644 arch/arm/mach-exynos4/dev-dwmci.c diff --git a/arch/arm/mach-exynos4/Kconfig b/arch/arm/mach-exynos4/Kconfig index 5115b90..2ec5b96 100644 --- a/arch/arm/mach-exynos4/Kconfig +++ b/arch/arm/mach-exynos4/Kconfig @@ -35,6 +35,11 @@ config EXYNOS4_DEV_SYSMMU help Common setup code for SYSTEM MMU in EXYNOS4 +config EXYNOS4_DEV_DWMCI + bool + help + Compile in platform device definitions for DWMCI + config EXYNOS4_SETUP_I2C1 bool help @@ -200,6 +205,13 @@ comment "Configuration for HSMMC bus width" menu "Use 8-bit bus width" +config EXYNOS4_DWMCI_8BIT + bool "DWMCI with 8-bit bus" + depends on EXYNOS4_DEV_DWMCI + help + Support DWMCI 8-bit bus. + If selected, Channel 1 is disabled. + config EXYNOS4_SDHCI_CH0_8BIT bool "Channel 0 with 8-bit bus" help diff --git a/arch/arm/mach-exynos4/Makefile b/arch/arm/mach-exynos4/Makefile index 60fe5ec..eeeaada 100644 --- a/arch/arm/mach-exynos4/Makefile +++ b/arch/arm/mach-exynos4/Makefile @@ -43,6 +43,7 @@ obj-y += dev-audio.o obj-$(CONFIG_EXYNOS4_DEV_AHCI) += dev-ahci.o obj-$(CONFIG_EXYNOS4_DEV_PD) += dev-pd.o obj-$(CONFIG_EXYNOS4_DEV_SYSMMU) += dev-sysmmu.o +obj-$(CONFIG_EXYNOS4_DEV_DWMCI) += dev-dwmci.o obj-$(CONFIG_EXYNOS4_SETUP_FIMC) += setup-fimc.o obj-$(CONFIG_EXYNOS4_SETUP_I2C1) += setup-i2c1.o diff --git a/arch/arm/mach-exynos4/dev-dwmci.c b/arch/arm/mach-exynos4/dev-dwmci.c new file mode 100644 index 0000000..a0defa4 --- /dev/null +++ b/arch/arm/mach-exynos4/dev-dwmci.c @@ -0,0 +1,88 @@ +/* + * linuxarch/arm/mach-exynos4/dev-dwmci.c + * + * Copyright (c) 2011 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * Platform device for Synopsys DesignWare Mobile Storage IP + * + * 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/kernel.h> +#include <linux/dma-mapping.h> +#include <linux/platform_device.h> +#include <linux/interrupt.h> +#include <linux/mmc/dw_mmc.h> +#include <linux/mmc/host.h> +#include <linux/io.h> +#include <linux/gpio.h> + +#include <plat/devs.h> +#include <plat/cpu.h> +#include <plat/gpio-cfg.h> + +#include <mach/map.h> + +#ifdef EXYNOS4_DWMCI_8BIT +#define BUS_WIDTH 8 +#else +#define BUS_WIDTH 4 +#endif + +static int exynos4_dwmci_get_ocr(u32 slot_id) +{ + return MMC_VDD_32_33 | MMC_VDD_33_34; +} + +static int exynos4_dwmci_get_bus_wd(u32 slot_id) +{ + return BUS_WIDTH; +} + +static int exynos4_dwmci_init(u32 slot_id, irq_handler_t handler, void *data) +{ + return 0; +} + +static struct resource exynos4_dwmci_resource[] = { + [0] = { + .start = EXYNOS4_PA_DWMCI, + .end = EXYNOS4_PA_DWMCI + SZ_4K - 1, + .flags = IORESOURCE_MEM, + }, + [1] = { + .start = IRQ_DWMCI, + .end = IRQ_DWMCI, + .flags = IORESOURCE_IRQ, + } +}; + +static struct dw_mci_board exynos4_dwci_pdata = { + .num_slots = 1, + .quirks = DW_MCI_QUIRK_BROKEN_CARD_DETECTION, + .bus_hz = 80*1000*1000, + .detect_delay_ms = 200, + .init = exynos4_dwmci_init, + .get_ocr = exynos4_dwmci_get_ocr, + .get_bus_wd = exynos4_dwmci_get_bus_wd, + .select_slot = NULL, +}; + +static u64 exynos4_dwmci_dmamask = DMA_BIT_MASK(32); + +struct platform_device exynos4_device_dwmci = { + .name = "dw_mmc", + .id = -1, + .num_resources = ARRAY_SIZE(exynos4_dwmci_resource), + .resource = exynos4_dwmci_resource, + .dev = { + .dma_mask = &exynos4_dwmci_dmamask, + .coherent_dma_mask = DMA_BIT_MASK(32), + .platform_data = &exynos4_dwci_pdata, + }, +}; + diff --git a/arch/arm/mach-exynos4/include/mach/irqs.h b/arch/arm/mach-exynos4/include/mach/irqs.h index 5d03730..b720246 100644 --- a/arch/arm/mach-exynos4/include/mach/irqs.h +++ b/arch/arm/mach-exynos4/include/mach/irqs.h @@ -107,6 +107,7 @@ #define IRQ_HSMMC1 COMBINER_IRQ(29, 1) #define IRQ_HSMMC2 COMBINER_IRQ(29, 2) #define IRQ_HSMMC3 COMBINER_IRQ(29, 3) +#define IRQ_DWMCI COMBINER_IRQ(29, 4) #define IRQ_MIPI_CSIS0 COMBINER_IRQ(30, 0) #define IRQ_MIPI_CSIS1 COMBINER_IRQ(30, 1) diff --git a/arch/arm/mach-exynos4/include/mach/map.h b/arch/arm/mach-exynos4/include/mach/map.h index 0009e77..352e500 100644 --- a/arch/arm/mach-exynos4/include/mach/map.h +++ b/arch/arm/mach-exynos4/include/mach/map.h @@ -94,6 +94,7 @@ #define EXYNOS4_PA_MIPI_CSIS1 0x11890000 #define EXYNOS4_PA_HSMMC(x) (0x12510000 + ((x) * 0x10000)) +#define EXYNOS4_PA_DWMCI 0x12550000 #define EXYNOS4_PA_SATA 0x12560000 #define EXYNOS4_PA_SATAPHY 0x125D0000 diff --git a/arch/arm/plat-samsung/include/plat/devs.h b/arch/arm/plat-samsung/include/plat/devs.h index e3b31c2..29fa1cf 100644 --- a/arch/arm/plat-samsung/include/plat/devs.h +++ b/arch/arm/plat-samsung/include/plat/devs.h @@ -112,6 +112,7 @@ extern struct platform_device exynos4_device_i2s2; extern struct platform_device exynos4_device_spdif; extern struct platform_device exynos4_device_pd[]; extern struct platform_device exynos4_device_ahci; +extern struct platform_device exynos4_device_dwmci; extern struct platform_device s5p6440_device_pcm; extern struct platform_device s5p6440_device_iis; -- 1.7.2.3 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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