arm64: tegra: Update cache properties

The DeviceTree Specification v0.3 specifies that the cache node
'compatible' and 'cache-level' properties are 'required'. Cf.
s3.8 Multi-level and Shared Cache Nodes
The 'cache-unified' property should be present if one of the
properties for unified cache is present ('cache-size', ...).

Update the Device Trees accordingly.

Signed-off-by: Pierre Gondois <pierre.gondois@arm.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>

3 files changed, 49 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
index a6721bb82bbd..e64b4a048efd 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
@@ -3050,36 +3050,51 @@
 		};
 
 		l2c_0: l2-cache0 {
+			compatible = "cache";
+			cache-unified;
 			cache-size = <2097152>;
 			cache-line-size = <64>;
 			cache-sets = <2048>;
+			cache-level = <2>;
 			next-level-cache = <&l3c>;
 		};
 
 		l2c_1: l2-cache1 {
+			compatible = "cache";
+			cache-unified;
 			cache-size = <2097152>;
 			cache-line-size = <64>;
 			cache-sets = <2048>;
+			cache-level = <2>;
 			next-level-cache = <&l3c>;
 		};
 
 		l2c_2: l2-cache2 {
+			compatible = "cache";
+			cache-unified;
 			cache-size = <2097152>;
 			cache-line-size = <64>;
 			cache-sets = <2048>;
+			cache-level = <2>;
 			next-level-cache = <&l3c>;
 		};
 
 		l2c_3: l2-cache3 {
+			compatible = "cache";
+			cache-unified;
 			cache-size = <2097152>;
 			cache-line-size = <64>;
 			cache-sets = <2048>;
+			cache-level = <2>;
 			next-level-cache = <&l3c>;
 		};
 
 		l3c: l3-cache {
+			compatible = "cache";
+			cache-unified;
 			cache-size = <4194304>;
 			cache-line-size = <64>;
+			cache-level = <3>;
 			cache-sets = <4096>;
 		};
 	};
diff --git a/arch/arm64/boot/dts/nvidia/tegra210.dtsi b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
index 0cdad97b6962..046ce8ebd505 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
@@ -2004,6 +2004,7 @@
 
 		L2: l2-cache {
 			compatible = "cache";
+			cache-level = <2>;
 		};
 	};
 
diff --git a/arch/arm64/boot/dts/nvidia/tegra234.dtsi b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
index 97d47327afdd..8baeed783903 100644
--- a/arch/arm64/boot/dts/nvidia/tegra234.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra234.dtsi
@@ -3084,117 +3084,150 @@
 		};
 
 		l2c0_0: l2-cache00 {
+			compatible = "cache";
 			cache-size = <262144>;
 			cache-line-size = <64>;
 			cache-sets = <512>;
 			cache-unified;
+			cache-level = <2>;
 			next-level-cache = <&l3c0>;
 		};
 
 		l2c0_1: l2-cache01 {
+			compatible = "cache";
 			cache-size = <262144>;
 			cache-line-size = <64>;
 			cache-sets = <512>;
 			cache-unified;
+			cache-level = <2>;
 			next-level-cache = <&l3c0>;
 		};
 
 		l2c0_2: l2-cache02 {
+			compatible = "cache";
 			cache-size = <262144>;
 			cache-line-size = <64>;
 			cache-sets = <512>;
 			cache-unified;
+			cache-level = <2>;
 			next-level-cache = <&l3c0>;
 		};
 
 		l2c0_3: l2-cache03 {
+			compatible = "cache";
 			cache-size = <262144>;
 			cache-line-size = <64>;
 			cache-sets = <512>;
 			cache-unified;
+			cache-level = <2>;
 			next-level-cache = <&l3c0>;
 		};
 
 		l2c1_0: l2-cache10 {
+			compatible = "cache";
 			cache-size = <262144>;
 			cache-line-size = <64>;
 			cache-sets = <512>;
 			cache-unified;
+			cache-level = <2>;
 			next-level-cache = <&l3c1>;
 		};
 
 		l2c1_1: l2-cache11 {
+			compatible = "cache";
 			cache-size = <262144>;
 			cache-line-size = <64>;
 			cache-sets = <512>;
 			cache-unified;
+			cache-level = <2>;
 			next-level-cache = <&l3c1>;
 		};
 
 		l2c1_2: l2-cache12 {
+			compatible = "cache";
 			cache-size = <262144>;
 			cache-line-size = <64>;
 			cache-sets = <512>;
 			cache-unified;
+			cache-level = <2>;
 			next-level-cache = <&l3c1>;
 		};
 
 		l2c1_3: l2-cache13 {
+			compatible = "cache";
 			cache-size = <262144>;
 			cache-line-size = <64>;
 			cache-sets = <512>;
 			cache-unified;
+			cache-level = <2>;
 			next-level-cache = <&l3c1>;
 		};
 
 		l2c2_0: l2-cache20 {
+			compatible = "cache";
 			cache-size = <262144>;
 			cache-line-size = <64>;
 			cache-sets = <512>;
 			cache-unified;
+			cache-level = <2>;
 			next-level-cache = <&l3c2>;
 		};
 
 		l2c2_1: l2-cache21 {
+			compatible = "cache";
 			cache-size = <262144>;
 			cache-line-size = <64>;
 			cache-sets = <512>;
 			cache-unified;
+			cache-level = <2>;
 			next-level-cache = <&l3c2>;
 		};
 
 		l2c2_2: l2-cache22 {
+			compatible = "cache";
 			cache-size = <262144>;
 			cache-line-size = <64>;
 			cache-sets = <512>;
 			cache-unified;
+			cache-level = <2>;
 			next-level-cache = <&l3c2>;
 		};
 
 		l2c2_3: l2-cache23 {
+			compatible = "cache";
 			cache-size = <262144>;
 			cache-line-size = <64>;
 			cache-sets = <512>;
 			cache-unified;
+			cache-level = <2>;
 			next-level-cache = <&l3c2>;
 		};
 
 		l3c0: l3-cache0 {
+			compatible = "cache";
+			cache-unified;
 			cache-size = <2097152>;
 			cache-line-size = <64>;
 			cache-sets = <2048>;
+			cache-level = <3>;
 		};
 
 		l3c1: l3-cache1 {
+			compatible = "cache";
+			cache-unified;
 			cache-size = <2097152>;
 			cache-line-size = <64>;
 			cache-sets = <2048>;
+			cache-level = <3>;
 		};
 
 		l3c2: l3-cache2 {
+			compatible = "cache";
+			cache-unified;
 			cache-size = <2097152>;
 			cache-line-size = <64>;
 			cache-sets = <2048>;
+			cache-level = <3>;
 		};
 	};