[PATCH 2/3] arm64: dts: rockchip: Add GPU node for RK3528

Jonas Karlman
2025-05-18T22:58:52Z

Add a GPU node and a opp-table for the Mali-450 MP2 in the RK3528 SoC.

Signed-off-by: Jonas Karlman <jonas@kwiboo.se>
---
arch/arm64/boot/dts/rockchip/rk3528.dtsi | 58 ++++++++++++++++++++++++
1 file changed, 58 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3528.dtsi b/arch/arm64/boot/dts/rockchip/rk3528.dtsi
index 791cb9b1e8f1..548ac6d4793f 100644
--- a/arch/arm64/boot/dts/rockchip/rk3528.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3528.dtsi
@@ -96,6 +96,36 @@ scmi_clk: protocol@14 {
};
};

+ gpu_opp_table: opp-table-gpu {
+ compatible = "operating-points-v2";
+
+ opp-300000000 {
+ opp-hz = /bits/ 64 <300000000>;
+ opp-microvolt = <875000 875000 1000000>;
+ opp-suspend;
+ };
+
+ opp-500000000 {
+ opp-hz = /bits/ 64 <500000000>;
+ opp-microvolt = <875000 875000 1000000>;
+ };
+
+ opp-600000000 {
+ opp-hz = /bits/ 64 <600000000>;
+ opp-microvolt = <875000 875000 1000000>;
+ };
+
+ opp-700000000 {
+ opp-hz = /bits/ 64 <700000000>;
+ opp-microvolt = <900000 900000 1000000>;
+ };
+
+ opp-800000000 {
+ opp-hz = /bits/ 64 <800000000>;
+ opp-microvolt = <950000 950000 1000000>;
+ };
+ };
+
psci {
compatible = "arm,psci-1.0", "arm,psci-0.2";
method = "smc";
@@ -433,6 +463,34 @@ power-domain@RK3528_PD_VPU {
};
};

+ gpu: gpu@ff700000 {
+ compatible = "rockchip,rk3528-mali", "arm,mali-450";
+ reg = <0x0 0xff700000 0x0 0x40000>;
+ assigned-clocks = <&cru ACLK_GPU_MALI>,
+ <&scmi_clk SCMI_CLK_GPU>;
+ assigned-clock-rates = <297000000>, <300000000>;
+ clocks = <&cru ACLK_GPU_MALI>, <&scmi_clk SCMI_CLK_GPU>;
+ clock-names = "bus", "core";
+ interrupts = <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-names = "gp",
+ "gpmmu",
+ "pp",
+ "pp0",
+ "ppmmu0",
+ "pp1",
+ "ppmmu1";
+ operating-points-v2 = <&gpu_opp_table>;
+ power-domains = <&power RK3528_PD_GPU>;
+ resets = <&cru SRST_A_GPU>;
+ status = "disabled";
+ };
+
uart0: serial@ff9f0000 {
compatible = "rockchip,rk3528-uart", "snps,dw-apb-uart";
reg = <0x0 0xff9f0000 0x0 0x100>;
--
2.49.0