[PATCH v3 09/11] arm64: dts: amlogic: Add cache information to the Amlogic S7 SoC
From: Anand Moon <hidden>
Date: 2025-09-05 11:59:56
Also in:
linux-amlogic, linux-arm-kernel, lkml
Subsystem:
arm/amlogic meson soc support, the rest · Maintainers:
Neil Armstrong, Kevin Hilman, Linus Torvalds
As per S7 datasheet add missing cache information to the Amlogic S7 SoC. ARM Cortex-A55 CPU uses unified L2 cache. - Each Cortex-A55 core has 32KB of L1 instruction cache available and 32KB of L1 data cache available. - Along with 256KB Unified L2 cache. Signed-off-by: Anand Moon <redacted> --- arch/arm64/boot/dts/amlogic/amlogic-s7.dtsi | 36 +++++++++++++++++++++ 1 file changed, 36 insertions(+)
diff --git a/arch/arm64/boot/dts/amlogic/amlogic-s7.dtsi b/arch/arm64/boot/dts/amlogic/amlogic-s7.dtsi
index 260918b37b9ae..d262c0b66e4b5 100644
--- a/arch/arm64/boot/dts/amlogic/amlogic-s7.dtsi
+++ b/arch/arm64/boot/dts/amlogic/amlogic-s7.dtsi@@ -18,6 +18,13 @@ cpu0: cpu@0 { compatible = "arm,cortex-a55"; reg = <0x0 0x0>; enable-method = "psci"; + 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 = <&l2>; }; cpu1: cpu@100 {
@@ -25,6 +32,13 @@ cpu1: cpu@100 { compatible = "arm,cortex-a55"; reg = <0x0 0x100>; enable-method = "psci"; + 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 = <&l2>; }; cpu2: cpu@200 {
@@ -32,6 +46,13 @@ cpu2: cpu@200 { compatible = "arm,cortex-a55"; reg = <0x0 0x200>; enable-method = "psci"; + 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 = <&l2>; }; cpu3: cpu@300 {
@@ -39,8 +60,23 @@ cpu3: cpu@300 { compatible = "arm,cortex-a55"; reg = <0x0 0x300>; enable-method = "psci"; + 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 = <&l2>; }; + l2: l2-cache0 { + compatible = "cache"; + cache-level = <2>; + cache-unified; + cache-size = <0x40000>; /* L2. 256 KB */ + cache-line-size = <64>; + cache-sets = <512>; + }; }; timer {
--
2.50.1