ARM: dts: uniphier: add outer cache nodes

These nodes are not parsed by U-Boot for now, but syncing device trees
with Linux is helpful for easier diffing.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/arch/arm/dts/uniphier-ph1-sld8.dtsi b/arch/arm/dts/uniphier-ph1-sld8.dtsi
index bafe343..cb28bc4 100644
--- a/arch/arm/dts/uniphier-ph1-sld8.dtsi
+++ b/arch/arm/dts/uniphier-ph1-sld8.dtsi
@@ -19,6 +19,7 @@
 			device_type = "cpu";
 			compatible = "arm,cortex-a9";
 			reg = <0>;
+			next-level-cache = <&l2>;
 		};
 	};
 
@@ -44,6 +45,17 @@
 };
 
 &soc {
+	l2: l2-cache@500c0000 {
+		compatible = "socionext,uniphier-system-cache";
+		reg = <0x500c0000 0x2000>, <0x503c0100 0x4>, <0x506c0000 0x400>;
+		interrupts = <0 174 4>, <0 175 4>;
+		cache-unified;
+		cache-size = <(256 * 1024)>;
+		cache-sets = <256>;
+		cache-line-size = <128>;
+		cache-level = <2>;
+	};
+
 	i2c0: i2c@58400000 {
 		compatible = "socionext,uniphier-i2c";
 		status = "disabled";