fdts: a5ds: add L2 cache node in devicetree

This change is to add L2 cache node into a5ds device tree.

Change-Id: I64b4b3e839c3ee565abbcd1567d1aa358c32d947
Signed-off-by: Vishnu Banavath <vishnu.banavath@arm.com>

fdts/a5ds.dts

@@ -27,24 +27,28 @@
 			compatible = "arm,cortex-a5";
 			enable-method = "psci";
 			reg = <0>;
+			next-level-cache = <&L2>;
 		};
 		cpu@1 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a5";
 			enable-method = "psci";
 			reg = <1>;
+			next-level-cache = <&L2>;
 		};
 		cpu@2 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a5";
 			enable-method = "psci";
 			reg = <2>;
+			next-level-cache = <&L2>;
 		};
 		cpu@3 {
 			device_type = "cpu";
 			compatible = "arm,cortex-a5";
 			enable-method = "psci";
 			reg = <3>;
+			next-level-cache = <&L2>;
 		};
 	};
 
@@ -53,6 +57,16 @@
 		reg = <0x80000000 0x7F000000>;
 	};
 
+	L2: cache-controller@1C010000 {
+		compatible = "arm,pl310-cache";
+		reg = <0x1C010000 0x1000>;
+		interrupts = <0 84 4>;
+		cache-level = <2>;
+		cache-unified;
+		arm,data-latency = <1 1 1>;
+		arm,tag-latency = <1 1 1>;
+	};
+
 	refclk100mhz: refclk100mhz {
 		compatible = "fixed-clock";
 		#clock-cells = <0>;