diff mbox

ARM: EXYNOS4: Add platform device for dwmci driver.

Message ID 1310541479-32252-1-git-send-email-tgih.jun@samsung.com (mailing list archive)
State New, archived
Headers show

Commit Message

Seungwon Jeon July 13, 2011, 7:17 a.m. UTC 
This patch add platform devices for Synopsys DesignWare Multimedia Card
Interface driver.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
---
 arch/arm/mach-exynos4/Kconfig             |    5 ++
 arch/arm/mach-exynos4/Makefile            |    1 +
 arch/arm/mach-exynos4/dev-dwmci.c         |   86 +++++++++++++++++++++++++++++
 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, 95 insertions(+), 0 deletions(-)
 create mode 100644 arch/arm/mach-exynos4/dev-dwmci.c

Comments

Kyungmin Park July 13, 2011, 8:20 a.m. UTC | #1 
On Wed, Jul 13, 2011 at 4:17 PM, Seungwon Jeon <tgih.jun@samsung.com> wrote:
> This patch add platform devices for Synopsys DesignWare Multimedia Card
> Interface driver.
>
> Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
> ---
>  arch/arm/mach-exynos4/Kconfig             |    5 ++
>  arch/arm/mach-exynos4/Makefile            |    1 +
>  arch/arm/mach-exynos4/dev-dwmci.c         |   86 +++++++++++++++++++++++++++++
>  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, 95 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..c82674a 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
> 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..6b69707
> --- /dev/null
> +++ b/arch/arm/mach-exynos4/dev-dwmci.c
> @@ -0,0 +1,86 @@
> +/*
> + * 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 <mach/map.h>
> +#include <mach/gpio.h>
> +
> +#include <plat/devs.h>
> +#include <plat/cpu.h>
> +#include <plat/gpio-cfg.h>
> +
> +static int exynos4_dwmci_init(u32 slot_id, irq_handler_t handler, void *data);
> +static int exynos4_dwmci_get_ocr(u32 slot_id);
> +static int exynos4_dwmci_get_bus_wd(u32 slot_id);
No need to declare it at here.
Just put the exynos4_dwci_pdata at last.
> +
> +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,
Does it correct value?
> +       .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,
> +       },
> +};
> +
> +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 4;
It's platform dependent value. Please give also platform helper
function to setup at each platform.
> +}
> +
> +static int exynos4_dwmci_init(u32 slot_id, irq_handler_t handler, void *data)
> +{
> +       return 0;
> +}
> +
> 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@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html
>
Russell King - ARM Linux July 13, 2011, 8:34 a.m. UTC | #2 
On Wed, Jul 13, 2011 at 04:17:59PM +0900, Seungwon Jeon wrote:
> +#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 <mach/map.h>
> +#include <mach/gpio.h>

This should be linux/gpio.h
Seungwon Jeon July 14, 2011, 1:30 a.m. UTC | #3 
Hi,

Kyungmin Park wrote:
> On Wed, Jul 13, 2011 at 4:17 PM, Seungwon Jeon <tgih.jun@samsung.com>
> wrote:
> > This patch add platform devices for Synopsys DesignWare Multimedia Card
> > Interface driver.
> >
> > Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
> > ---
> >  arch/arm/mach-exynos4/Kconfig             |    5 ++
> >  arch/arm/mach-exynos4/Makefile            |    1 +
> >  arch/arm/mach-exynos4/dev-dwmci.c         |   86
> +++++++++++++++++++++++++++++
> >  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, 95 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..c82674a 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
> > 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..6b69707
> > --- /dev/null
> > +++ b/arch/arm/mach-exynos4/dev-dwmci.c
> > @@ -0,0 +1,86 @@
> > +/*
> > + * 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 <mach/map.h>
> > +#include <mach/gpio.h>
> > +
> > +#include <plat/devs.h>
> > +#include <plat/cpu.h>
> > +#include <plat/gpio-cfg.h>
> > +
> > +static int exynos4_dwmci_init(u32 slot_id, irq_handler_t handler, void
> *data);
> > +static int exynos4_dwmci_get_ocr(u32 slot_id);
> > +static int exynos4_dwmci_get_bus_wd(u32 slot_id);
> No need to declare it at here.
> Just put the exynos4_dwci_pdata at last.

I'll apply your comment next.
Thank you.

> > +
> > +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,
> Does it correct value?
> > +       .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,
> > +       },
> > +};
> > +
> > +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 4;
> It's platform dependent value. Please give also platform helper
> function to setup at each platform.

I think it is related with board dependency rather than platform.
So, I prefer to adding board configuration option for decision of width.

> > +}
> > +
> > +static int exynos4_dwmci_init(u32 slot_id, irq_handler_t handler, void
> *data)
> > +{
> > +       return 0;
> > +}
> > +
> > 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@vger.kernel.org
> > More majordomo info at  http://vger.kernel.org/majordomo-info.html
> >
diff mbox

Patch

diff --git a/arch/arm/mach-exynos4/Kconfig b/arch/arm/mach-exynos4/Kconfig
index 5115b90..c82674a 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
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..6b69707
--- /dev/null
+++ b/arch/arm/mach-exynos4/dev-dwmci.c
@@ -0,0 +1,86 @@ 
+/*
+ * 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 <mach/map.h>
+#include <mach/gpio.h>
+
+#include <plat/devs.h>
+#include <plat/cpu.h>
+#include <plat/gpio-cfg.h>
+
+static int exynos4_dwmci_init(u32 slot_id, irq_handler_t handler, void *data);
+static int exynos4_dwmci_get_ocr(u32 slot_id);
+static int exynos4_dwmci_get_bus_wd(u32 slot_id);
+
+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,
+	},
+};
+
+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 4;
+}
+
+static int exynos4_dwmci_init(u32 slot_id, irq_handler_t handler, void *data)
+{
+	return 0;
+}
+
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;