dts: rk3036: add sdmmc for rk3036

rk3036 support sdmmc, add dts node to support it.

Signed-off-by: Eddie Cai <eddie.cai.linux@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>

arch/arm/dts/rk3036.dtsi

@@ -23,6 +23,7 @@
 		serial1 = &uart1;
 		serial2 = &uart2;
 		mmc0 = &emmc;
+		mmc1 = &sdmmc;
 	};
 
 	memory {
@@ -265,6 +266,18 @@
 		pinctrl-0 = <&emmc_clk &emmc_cmd &emmc_bus8>;
 	};
 
+	sdmmc: dwmmc@10214000 {
+		compatible = "rockchip,rk3036-dw-mshc", "rockchip,rk3288-dw-mshc";
+		reg = <0x10214000 0x4000>;
+		clock-frequency = <37500000>;
+		max-frequency = <37500000>;
+		clocks = <&cru HCLK_SDMMC>, <&cru SCLK_SDMMC>;
+		clock-names = "biu", "ciu";
+		fifo-depth = <0x100>;
+		interrupts = <GIC_SPI 14 IRQ_TYPE_LEVEL_HIGH>;
+		status = "disabled";
+	};
+
 	pinctrl: pinctrl {
 		compatible = "rockchip,rk3036-pinctrl";
 		rockchip,grf = <&grf>;