diff --git a/arch/arm64/boot/dts/rockchip/rk3308b-amp.dtsi b/arch/arm64/boot/dts/rockchip/rk3308b-amp.dtsi
index 9b7ec9810f99..a2d39c8ea3ee 100644
--- a/arch/arm64/boot/dts/rockchip/rk3308b-amp.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3308b-amp.dtsi
@@ -14,8 +14,8 @@
 		pinctrl-names = "default";
 		pinctrl-0 = <&uart1_xfer>;
 		status = "okay";
-		amp-cpu-aff-maskbits = <0x0 0x1 0x1 0x2 0x2 0x4 0x3 0x8>;
-		amp-irqs = <GIC_AMP_IRQ_CFG_ROUTE(51, 0xd0, CPU_GET_AFFINITY(3, 0))>;
+		amp-cpu-aff-maskbits = /bits/ 64 <0x0 0x1 0x1 0x2 0x2 0x4 0x3 0x8>;
+		amp-irqs = /bits/ 64 <GIC_AMP_IRQ_CFG_ROUTE(51, 0xd0, CPU_GET_AFFINITY(3, 0))>;
 	};
 
 	reserved-memory {