[PATCH v2 06/11] arm64: dts: amlogic: Add cache information to the Amlogic A1 SoC
Anand Moon
linux.amoon at gmail.com
Sun Aug 24 23:51:46 PDT 2025
As per the A1 datasheet add missing cache information to the Amlogic A1
SoC.
- Each Cortex-A53 core has 32KB of L1 instruction cache available and
32KB of L1 data cache available.
- Along with 512KB Unified L2 cache.
Cache memory significantly reduces the time it takes for the CPU
to access data and instructions, leading to faster program execution
and overall system responsiveness.
Signed-off-by: Anand Moon <linux.amoon at gmail.com>
---
arch/arm64/boot/dts/amlogic/meson-a1.dtsi | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
index f7f25a10f409..27b68ed85c4c 100644
--- a/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-a1.dtsi
@@ -27,6 +27,12 @@ cpu0: cpu at 0 {
compatible = "arm,cortex-a35";
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>;
#cooling-cells = <2>;
};
@@ -36,6 +42,12 @@ cpu1: cpu at 1 {
compatible = "arm,cortex-a35";
reg = <0x0 0x1>;
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>;
#cooling-cells = <2>;
};
@@ -44,6 +56,9 @@ l2: l2-cache0 {
compatible = "cache";
cache-level = <2>;
cache-unified;
+ cache-size = <0x80000>; /* L2. 512 KB */
+ cache-line-size = <64>;
+ cache-sets = <512>;
};
};
--
2.50.1
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