On Thu, Jul 14, 2011 at 6:53 PM, Seungwon Jeon <tgih.jun@xxxxxxxxxxx> wrote: > 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. No it should be determined at runtime instead of compile time. > + > 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 Right, each board can modify the bus width. so it needs the helper function to setup. > + > +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 > -- 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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