[PATCH v2 08/11] arm64: dts: amlogic: Add cache information to the Amlogic C3 SoC
Anand Moon
linux.amoon at gmail.com
Sun Aug 24 23:51:48 PDT 2025
As per C3 datasheet add missing cache information to the Amlogic C3 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/amlogic-c3.dtsi | 23 +++++++++++++++++++++
1 file changed, 23 insertions(+)
diff --git a/arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi b/arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi
index cb9ea3ca6ee0..ee0b1ffa947e 100644
--- a/arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi
+++ b/arch/arm64/boot/dts/amlogic/amlogic-c3.dtsi
@@ -23,6 +23,13 @@ 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>;
};
cpu1: cpu at 1 {
@@ -30,6 +37,22 @@ 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>;
+ };
+
+ l2: l2-cache0 {
+ compatible = "cache";
+ cache-level = <2>;
+ cache-unified;
+ cache-size = <0x7d000>; /* L2. 512 KB */
+ cache-line-size = <64>;
+ cache-sets = <512>;
};
};
--
2.50.1
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