[PATCHv1 1/5] arm64: dts: amlogic: Add cache information to the Amlogic GXBB and GXL SoC

From: Anand Moon
Date: Mon Feb 05 2024 - 12:20:33 EST


As per S905 and S905X datasheet add missing cache information to
the Amlogic GXBB and GXL 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.

To improve system performance.

Signed-off-by: Anand Moon <linux.amoon@xxxxxxxxx>
---
Datasheet
[0] https://dn.odroid.com/S905/DataSheet/S905_Public_Datasheet_V1.1.4.pdf
---
arch/arm64/boot/dts/amlogic/meson-gx.dtsi | 27 +++++++++++++++++++++++
1 file changed, 27 insertions(+)

diff --git a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
index 2673f0dbafe7..e141ade5e49b 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
@@ -95,6 +95,12 @@ cpu0: cpu@0 {
compatible = "arm,cortex-a53";
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>;
clocks = <&scpi_dvfs 0>;
#cooling-cells = <2>;
@@ -105,6 +111,12 @@ cpu1: cpu@1 {
compatible = "arm,cortex-a53";
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>;
clocks = <&scpi_dvfs 0>;
#cooling-cells = <2>;
@@ -115,6 +127,12 @@ cpu2: cpu@2 {
compatible = "arm,cortex-a53";
reg = <0x0 0x2>;
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>;
clocks = <&scpi_dvfs 0>;
#cooling-cells = <2>;
@@ -125,6 +143,12 @@ cpu3: cpu@3 {
compatible = "arm,cortex-a53";
reg = <0x0 0x3>;
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>;
clocks = <&scpi_dvfs 0>;
#cooling-cells = <2>;
@@ -134,6 +158,9 @@ l2: l2-cache0 {
compatible = "cache";
cache-level = <2>;
cache-unified;
+ cache-size = <0x7d000>; /* L2. 512 KB */
+ cache-line-size = <64>;
+ cache-sets = <512>;
};
};

--
2.43.0