[PATCH 6.1.y-cip 18/85] arm64: dts: renesas: r9a09g047: Add OPP table

Tommaso Merciai
2025-03-13T01:32:55Z

From: Biju Das <biju.das.jz@bp.renesas.com>

commit 8e96597f3c25007d292eabba9cfc9612e7d90f0f upstream.

Add OPP table for RZ/G3E SoC.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20241203105005.103927-11-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
arch/arm64/boot/dts/renesas/r9a09g047.dtsi | 41 ++++++++++++++++++++++
1 file changed, 41 insertions(+)

diff --git a/arch/arm64/boot/dts/renesas/r9a09g047.dtsi b/arch/arm64/boot/dts/renesas/r9a09g047.dtsi
index 4176b9aa6892..39a7cfb3095b 100644
--- a/arch/arm64/boot/dts/renesas/r9a09g047.dtsi
+++ b/arch/arm64/boot/dts/renesas/r9a09g047.dtsi
@@ -20,6 +20,39 @@ audio_extal_clk: audio-clk {
clock-frequency = <0>;
};

+ /*
+ * The default cluster table is based on the assumption that the PLLCA55 clock
+ * frequency is set to 1.7GHz. The PLLCA55 clock frequency can be set to
+ * 1.7/1.6/1.5/1.1 GHz based on the BOOTPLLCA_0/1 pins (and additionally can be
+ * clocked to 1.8GHz as well). The table below should be overridden in the board
+ * DTS based on the PLLCA55 clock frequency.
+ */
+ cluster0_opp: opp-table-0 {
+ compatible = "operating-points-v2";
+
+ opp-1700000000 {
+ opp-hz = /bits/ 64 <1700000000>;
+ opp-microvolt = <900000>;
+ clock-latency-ns = <300000>;
+ };
+ opp-850000000 {
+ opp-hz = /bits/ 64 <850000000>;
+ opp-microvolt = <800000>;
+ clock-latency-ns = <300000>;
+ };
+ opp-425000000 {
+ opp-hz = /bits/ 64 <425000000>;
+ opp-microvolt = <800000>;
+ clock-latency-ns = <300000>;
+ };
+ opp-212500000 {
+ opp-hz = /bits/ 64 <212500000>;
+ opp-microvolt = <800000>;
+ clock-latency-ns = <300000>;
+ opp-suspend;
+ };
+ };
+
cpus {
#address-cells = <1>;
#size-cells = <0>;
@@ -30,6 +63,8 @@ cpu0: cpu@0 {
device_type = "cpu";
next-level-cache = <&L3_CA55>;
enable-method = "psci";
+ clocks = <&cpg CPG_CORE R9A09G047_CA55_0_CORECLK0>;
+ operating-points-v2 = <&cluster0_opp>;
};

cpu1: cpu@100 {
@@ -38,6 +73,8 @@ cpu1: cpu@100 {
device_type = "cpu";
next-level-cache = <&L3_CA55>;
enable-method = "psci";
+ clocks = <&cpg CPG_CORE R9A09G047_CA55_0_CORECLK1>;
+ operating-points-v2 = <&cluster0_opp>;
};

cpu2: cpu@200 {
@@ -46,6 +83,8 @@ cpu2: cpu@200 {
device_type = "cpu";
next-level-cache = <&L3_CA55>;
enable-method = "psci";
+ clocks = <&cpg CPG_CORE R9A09G047_CA55_0_CORECLK2>;
+ operating-points-v2 = <&cluster0_opp>;
};

cpu3: cpu@300 {
@@ -54,6 +93,8 @@ cpu3: cpu@300 {
device_type = "cpu";
next-level-cache = <&L3_CA55>;
enable-method = "psci";
+ clocks = <&cpg CPG_CORE R9A09G047_CA55_0_CORECLK3>;
+ operating-points-v2 = <&cluster0_opp>;
};

L3_CA55: cache-controller-0 {
--
2.43.0