As per S905X3 datasheet add missing cache information to the Amlogic SM1 SoC. ARM Cortex-A55 CPU uses unified L3 cache instead of L2 cache. - Each Cortex-A55 core has 32KB of L1 instruction cache available and 32KB of L1 data cache available. - Along with 512KB Unified L3 cache. To improve system performance. Signed-off-by: Anand Moon <linux.amoon@xxxxxxxxx> --- Datasheet [0] https://dn.odroid.com/S905X3/ODROID-C4/Docs/S905X3_Public_Datasheet_Hardkernel.pdf [1] https://en.wikipedia.org/wiki/ARM_Cortex-A55 --- arch/arm64/boot/dts/amlogic/meson-sm1.dtsi | 39 ++++++++++++++++++---- 1 file changed, 33 insertions(+), 6 deletions(-) diff --git a/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi b/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi index 643f94d9d08e..403443e782e4 100644 --- a/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi +++ b/arch/arm64/boot/dts/amlogic/meson-sm1.dtsi @@ -55,7 +55,13 @@ cpu0: cpu@0 { compatible = "arm,cortex-a55"; reg = <0x0 0x0>; enable-method = "psci"; - next-level-cache = <&l2>; + d-cache-line-size = <32>; + d-cache-size = <0x8000>; + d-cache-sets = <32>; + i-cache-line-size = <32>; + i-cache-size = <0x8000>; + i-cache-sets = <32>; + next-level-cache = <&l3>; #cooling-cells = <2>; }; @@ -64,7 +70,13 @@ cpu1: cpu@1 { compatible = "arm,cortex-a55"; reg = <0x0 0x1>; enable-method = "psci"; - next-level-cache = <&l2>; + d-cache-line-size = <32>; + d-cache-size = <0x8000>; + d-cache-sets = <32>; + i-cache-line-size = <32>; + i-cache-size = <0x8000>; + i-cache-sets = <32>; + next-level-cache = <&l3>; #cooling-cells = <2>; }; @@ -73,7 +85,13 @@ cpu2: cpu@2 { compatible = "arm,cortex-a55"; reg = <0x0 0x2>; enable-method = "psci"; - next-level-cache = <&l2>; + d-cache-line-size = <32>; + d-cache-size = <0x8000>; + d-cache-sets = <32>; + i-cache-line-size = <32>; + i-cache-size = <0x8000>; + i-cache-sets = <32>; + next-level-cache = <&l3>; #cooling-cells = <2>; }; @@ -82,14 +100,23 @@ cpu3: cpu@3 { compatible = "arm,cortex-a55"; reg = <0x0 0x3>; enable-method = "psci"; - next-level-cache = <&l2>; + d-cache-line-size = <32>; + d-cache-size = <0x8000>; + d-cache-sets = <32>; + i-cache-line-size = <32>; + i-cache-size = <0x8000>; + i-cache-sets = <32>; + next-level-cache = <&l3>; #cooling-cells = <2>; }; - l2: l2-cache0 { + l3: l3-cache0 { compatible = "cache"; - cache-level = <2>; + cache-level = <3>; cache-unified; + cache-size = <0x7d000>; /* L2. 512 KB */ + cache-line-size = <64>; + cache-sets = <512>; }; }; -- 2.43.0
