[PATCH] arm64: dts: Add L2 cache topology to Hi6220

[Leo Yan]

This patch adds the L2 cache topology on Hi6220. Hi6220 has two
clusters, every cluster has 512KiB L2 cache (32KiB x 16 ways).

Signed-off-by: Leo Yan <leo.yan at linaro.org>
---
 arch/arm64/boot/dts/hisilicon/hi6220.dtsi | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
index d8b963c..1746d50 100644
--- a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
+++ b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi
@@ -82,6 +82,7 @@
 			device_type = "cpu";
 			reg = <0x0 0x0>;
 			enable-method = "psci";
+			next-level-cache = <&CLUSTER0_L2>;
 			clocks = <&stub_clock 0>;
 			operating-points-v2 = <&cpu_opp_table>;
 			cooling-min-level = <4>;
@@ -96,6 +97,7 @@
 			device_type = "cpu";
 			reg = <0x0 0x1>;
 			enable-method = "psci";
+			next-level-cache = <&CLUSTER0_L2>;
 			operating-points-v2 = <&cpu_opp_table>;
 			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
 		};
@@ -105,6 +107,7 @@
 			device_type = "cpu";
 			reg = <0x0 0x2>;
 			enable-method = "psci";
+			next-level-cache = <&CLUSTER0_L2>;
 			operating-points-v2 = <&cpu_opp_table>;
 			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
 		};
@@ -114,6 +117,7 @@
 			device_type = "cpu";
 			reg = <0x0 0x3>;
 			enable-method = "psci";
+			next-level-cache = <&CLUSTER0_L2>;
 			operating-points-v2 = <&cpu_opp_table>;
 			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
 		};
@@ -123,6 +127,7 @@
 			device_type = "cpu";
 			reg = <0x0 0x100>;
 			enable-method = "psci";
+			next-level-cache = <&CLUSTER1_L2>;
 			operating-points-v2 = <&cpu_opp_table>;
 			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
 		};
@@ -132,6 +137,7 @@
 			device_type = "cpu";
 			reg = <0x0 0x101>;
 			enable-method = "psci";
+			next-level-cache = <&CLUSTER1_L2>;
 			operating-points-v2 = <&cpu_opp_table>;
 			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
 		};
@@ -141,6 +147,7 @@
 			device_type = "cpu";
 			reg = <0x0 0x102>;
 			enable-method = "psci";
+			next-level-cache = <&CLUSTER1_L2>;
 			operating-points-v2 = <&cpu_opp_table>;
 			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
 		};
@@ -150,9 +157,18 @@
 			device_type = "cpu";
 			reg = <0x0 0x103>;
 			enable-method = "psci";
+			next-level-cache = <&CLUSTER1_L2>;
 			operating-points-v2 = <&cpu_opp_table>;
 			cpu-idle-states = <&CPU_SLEEP &CLUSTER_SLEEP>;
 		};
+
+		CLUSTER0_L2: l2-cache0 {
+			compatible = "cache";
+		};
+
+		CLUSTER1_L2: l2-cache1 {
+			compatible = "cache";
+		};
 	};
 
 	cpu_opp_table: cpu_opp_table {
-- 
1.9.1