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

Chukun Pan
2025-03-06T13:23:36Z

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@jmu.edu.cn>
---
arch/arm64/boot/dts/rockchip/rk3528.dtsi | 32 ++++++++++++++++++++++++
1 file changed, 32 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3528.dtsi b/arch/arm64/boot/dts/rockchip/rk3528.dtsi
index 0c0e7f151462..aa68c2fef2f3 100644
--- a/arch/arm64/boot/dts/rockchip/rk3528.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3528.dtsi
@@ -59,6 +59,7 @@ cpu0: cpu@0 {
reg = <0x0>;
device_type = "cpu";
enable-method = "psci";
+ clocks = <&scmi_clk SCMI_CLK_CPU>;
};

cpu1: cpu@1 {
@@ -66,6 +67,7 @@ cpu1: cpu@1 {
reg = <0x1>;
device_type = "cpu";
enable-method = "psci";
+ clocks = <&scmi_clk SCMI_CLK_CPU>;
};

cpu2: cpu@2 {
@@ -73,6 +75,7 @@ cpu2: cpu@2 {
reg = <0x2>;
device_type = "cpu";
enable-method = "psci";
+ clocks = <&scmi_clk SCMI_CLK_CPU>;
};

cpu3: cpu@3 {
@@ -80,6 +83,22 @@ 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>;
+ };
};
};

@@ -110,6 +129,19 @@ gmac0_clk: clock-gmac50m {
#clock-cells = <0>;
};

+ sram@10f000 {
+ compatible = "mmio-sram";
+ reg = <0x0 0x0010f000 0x0 0x100>;
+ ranges = <0 0x0 0x0010f000 0x100>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ scmi_shmem: sram@0 {
+ compatible = "arm,scmi-shmem";
+ reg = <0x0 0x100>;
+ };
+ };
+
soc {
compatible = "simple-bus";
ranges = <0x0 0xfe000000 0x0 0xfe000000 0x0 0x2000000>;
--
2.25.1