diff --git a/arch/arm64/boot/dts/rockchip/px30.dtsi b/arch/arm64/boot/dts/rockchip/px30.dtsi
index c0cd44a607d4..3cb1f95e2715 100644
--- a/arch/arm64/boot/dts/rockchip/px30.dtsi
+++ b/arch/arm64/boot/dts/rockchip/px30.dtsi
@@ -218,6 +218,28 @@
 		>;
 	};
 
+	soc_bus: soc-bus {
+		compatible = "rockchip,px30-bus";
+
+		soc-bus0 {
+			bus-id = <0>;
+			timer-us = <20>;
+			enable-msk = <0x40f7>;
+		};
+		soc-bus1 {
+			bus-id = <1>;
+			timer-us = <200>;
+			enable-msk = <0x40bf>;
+			status = "disabled";
+		};
+		soc-bus2 {
+			bus-id = <2>;
+			timer-us = <200>;
+			enable-msk = <0x4007>;
+			status = "disabled";
+		};
+	};
+
 	timer {
 		compatible = "arm,armv8-timer";
 		interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>,