fdts: tc0: Add node for mmc

The pl180 mmc uses 3.3V fixed regulator and vexpress
sysreg for card detection and write protect.

Change-Id: I2513cfcb97217e282a081a700f3a9f723e8207ff
Signed-off-by: Usama Arif <usama.arif@arm.com>

fdts/tc0.dts

@@ -272,6 +272,35 @@
 		interrupts = <0 204 4>;
 	};
 
+	sysreg: sysreg@1c010000 {
+		compatible = "arm,vexpress-sysreg";
+		reg = <0x0 0x001c010000 0x0 0x1000>;
+		gpio-controller;
+		#gpio-cells = <2>;
+	};
+
+	fixed_3v3: v2m-3v3 {
+		compatible = "regulator-fixed";
+		regulator-name = "3V3";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-always-on;
+	};
+
+	mmci@1c050000 {
+		compatible = "arm,pl180", "arm,primecell";
+		reg = <0x0 0x001c050000 0x0 0x1000>;
+		interrupts = <0 107 0x4>,
+			     <0 108 0x4>;
+		cd-gpios = <&sysreg 0 0>;
+		wp-gpios = <&sysreg 1 0>;
+		bus-width = <8>;
+		max-frequency = <12000000>;
+		vmmc-supply = <&fixed_3v3>;
+		clocks = <&bp_clock24mhz>, <&bp_clock24mhz>;
+		clock-names = "mclk", "apb_pclk";
+	};
+
 	dp0: display@2cc00000 {
 		#address-cells = <1>;
 		#size-cells = <0>;