[PATCH] dts: add support for MMC on socfpga boards

[Pavel Machek]

Add DTS binding for MMC on socfpga boards. Tested on Sockit.
    
Signed-off-by: Pavel Machek <pavel at denx.de>

diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi
index 537f1a5..cad7526 100644
--- a/arch/arm/boot/dts/socfpga.dtsi
+++ b/arch/arm/boot/dts/socfpga.dtsi
@@ -521,6 +521,23 @@
 			reg-io-width = <4>;
 		};
 
+		mmc: dwmmc0 at ff704000 {
+			compatible = "snps,dw-mshc";
+			reg = <0xff704000 0x1000>;
+			interrupts = <0 139 4>;
+			clock-frequency = <12500000>; /*12.5 MHz*/
+			#address-cells = <1>;
+			#size-cells = <0>;
+			num-slots = <1>;
+			supports-highspeed;
+			broken-cd;
+			fifo-depth = <0x400>;
+			slot at 0 {
+				reg = <0>;
+				bus-width = <4>;
+			};
+		};
+
 		rstmgr at ffd05000 {
 			compatible = "altr,rst-mgr";
 			reg = <0xffd05000 0x1000>;