[PATCH v2 1/1] arm64: dts: rockchip: enable SCMI clk for RK3528 SoC

From: Chukun Pan
Date: Thu Mar 06 2025 - 10:00:48 EST


Same as RK3568, RK3528 uses SCMI clk instead of ARMCLK.
Add SCMI clk for CPU, GPU and RNG will also use it.

Signed-off-by: Chukun Pan <amadeus@xxxxxxxxxx>
---
arch/arm64/boot/dts/rockchip/rk3528.dtsi | 33 ++++++++++++++++++++++++
1 file changed, 33 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3528.dtsi b/arch/arm64/boot/dts/rockchip/rk3528.dtsi
index b1713ed4d7e2..476b83f98834 100644
--- a/arch/arm64/boot/dts/rockchip/rk3528.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3528.dtsi
@@ -59,6 +59,9 @@ cpu0: cpu@0 {
reg = <0x0>;
device_type = "cpu";
enable-method = "psci";
+ clocks = <&scmi_clk SCMI_CLK_CPU>;
+ assigned-clocks = <&scmi_clk SCMI_CLK_CPU>;
+ assigned-clock-rates = <1200000000>;
};

cpu1: cpu@1 {
@@ -66,6 +69,7 @@ cpu1: cpu@1 {
reg = <0x1>;
device_type = "cpu";
enable-method = "psci";
+ clocks = <&scmi_clk SCMI_CLK_CPU>;
};

cpu2: cpu@2 {
@@ -73,6 +77,7 @@ cpu2: cpu@2 {
reg = <0x2>;
device_type = "cpu";
enable-method = "psci";
+ clocks = <&scmi_clk SCMI_CLK_CPU>;
};

cpu3: cpu@3 {
@@ -80,6 +85,22 @@ cpu3: cpu@3 {
reg = <0x3>;
device_type = "cpu";
enable-method = "psci";
+ clocks = <&scmi_clk SCMI_CLK_CPU>;
+ };
+ };
+
+ firmware {
+ scmi: scmi {
+ compatible = "arm,scmi-smc";
+ arm,smc-id = <0x82000010>;
+ shmem = <&scmi_shmem>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ scmi_clk: protocol@14 {
+ reg = <0x14>;
+ #clock-cells = <1>;
+ };
};
};

@@ -88,6 +109,18 @@ psci {
method = "smc";
};

+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ scmi_shmem: shmem@10f000 {
+ compatible = "arm,scmi-shmem";
+ reg = <0x0 0x0010f000 0x0 0x100>;
+ no-map;
+ };
+ };
+
timer {
compatible = "arm,armv8-timer";
interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_LOW)>,
--
2.25.1