exynos5250: arndale: Add mmc support

This patch adds mmc support to the arndale board.

Signed-off-by: Inderpal Singh <inderpal.singh@linaro.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>

board/samsung/arndale/arndale.c

@@ -6,6 +6,7 @@
 
 #include <common.h>
 #include <asm/arch/pinmux.h>
+#include <asm/arch/dwmmc.h>
 #include <asm/arch/power.h>
 
 DECLARE_GLOBAL_DATA_PTR;
@@ -48,6 +49,19 @@ void dram_init_banksize(void)
 	}
 }
 
+#ifdef CONFIG_GENERIC_MMC
+int board_mmc_init(bd_t *bis)
+{
+	int ret;
+	/* dwmmc initializattion for available channels */
+	ret = exynos_dwmmc_init(gd->fdt_blob);
+	if (ret)
+		debug("dwmmc init failed\n");
+
+	return ret;
+}
+#endif
+
 static int board_uart_init(void)
 {
 	int err = 0, uart_id;

board/samsung/dts/exynos5250-arndale.dts

@@ -18,4 +18,22 @@
 		serial0 = "/serial@12C20000";
 		console = "/serial@12C20000";
 	};
+
+	mmc@12200000 {
+		samsung,bus-width = <8>;
+		samsung,timing = <1 3 3>;
+	};
+
+	mmc@12210000 {
+		status = "disabled";
+	};
+
+	mmc@12220000 {
+		samsung,bus-width = <4>;
+		samsung,timing = <1 2 3>;
+	};
+
+	mmc@12230000 {
+		status = "disabled";
+	};
 };