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@xxxxxxx> --- arch/arm64/boot/dts/amazon/alpine-v3.dtsi | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm64/boot/dts/amazon/alpine-v3.dtsi b/arch/arm64/boot/dts/amazon/alpine-v3.dtsi index 73a352ea8fd5..ba7e56dc85db 100644 --- a/arch/arm64/boot/dts/amazon/alpine-v3.dtsi +++ b/arch/arm64/boot/dts/amazon/alpine-v3.dtsi @@ -246,6 +246,7 @@ cpu@303 { cluster0_l2: cache@0 { compatible = "cache"; + cache-unified; cache-size = <0x200000>; cache-line-size = <64>; cache-sets = <2048>; @@ -254,6 +255,7 @@ cluster0_l2: cache@0 { cluster1_l2: cache@100 { compatible = "cache"; + cache-unified; cache-size = <0x200000>; cache-line-size = <64>; cache-sets = <2048>; @@ -262,6 +264,7 @@ cluster1_l2: cache@100 { cluster2_l2: cache@200 { compatible = "cache"; + cache-unified; cache-size = <0x200000>; cache-line-size = <64>; cache-sets = <2048>; @@ -270,6 +273,7 @@ cluster2_l2: cache@200 { cluster3_l2: cache@300 { compatible = "cache"; + cache-unified; cache-size = <0x200000>; cache-line-size = <64>; cache-sets = <2048>; -- 2.25.1