arm64: dts: marvell: Add AP806-quad cache description

Adding appropriate entries to device-tree allows the cache description
to show up in sysfs under: /sys/devices/system/cpu/cpuX/cache/.
Signed-off-by: Grzegorz Jaszczyk <jaz@semihalf.com>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>

arch/arm64/boot/dts/marvell/armada-ap806-quad.dtsi

@@ -22,6 +22,13 @@ cpu0: cpu@0 {
 			enable-method = "psci";
 			#cooling-cells = <2>;
 			clocks = <&cpu_clk 0>;
+			i-cache-size = <0xc000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			next-level-cache = <&l2_0>;
 		};
 		cpu1: cpu@1 {
 			device_type = "cpu";
@@ -30,6 +37,13 @@ cpu1: cpu@1 {
 			enable-method = "psci";
 			#cooling-cells = <2>;
 			clocks = <&cpu_clk 0>;
+			i-cache-size = <0xc000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			next-level-cache = <&l2_0>;
 		};
 		cpu2: cpu@100 {
 			device_type = "cpu";
@@ -38,6 +52,13 @@ cpu2: cpu@100 {
 			enable-method = "psci";
 			#cooling-cells = <2>;
 			clocks = <&cpu_clk 1>;
+			i-cache-size = <0xc000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			next-level-cache = <&l2_1>;
 		};
 		cpu3: cpu@101 {
 			device_type = "cpu";
@@ -46,6 +67,27 @@ cpu3: cpu@101 {
 			enable-method = "psci";
 			#cooling-cells = <2>;
 			clocks = <&cpu_clk 1>;
+			i-cache-size = <0xc000>;
+			i-cache-line-size = <64>;
+			i-cache-sets = <256>;
+			d-cache-size = <0x8000>;
+			d-cache-line-size = <64>;
+			d-cache-sets = <256>;
+			next-level-cache = <&l2_1>;
+		};
+
+		l2_0: l2-cache0 {
+			compatible = "cache";
+			cache-size = <0x80000>;
+			cache-line-size = <64>;
+			cache-sets = <512>;
+		};
+
+		l2_1: l2-cache1 {
+			compatible = "cache";
+			cache-size = <0x80000>;
+			cache-line-size = <64>;
+			cache-sets = <512>;
 		};
 	};
 };