diff --git a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
index 85ef492ffeae..7c5c39c56858 100644
--- a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi
@@ -1144,5 +1144,44 @@ npu: npu@7122000 {
 			resets = <&mcu_ccu RST_BUS_MCU_NPU>;
 			power-domains = <&ppu PD_NPU>;
 		};
+
+		msgbox: mailbox@3003000 {
+			compatible = "allwinner,sun55i-a523-msgbox";
+			reg = <0x03003000 0x1000>,
+			      <0x07094000 0x1000>,
+			      <0x07120000 0x1000>,
+			      <0x07136000 0x1000>;
+			reg-names = "arm", "dsp", "cpus", "rv";
+			clocks = <&ccu CLK_BUS_MSGBOX>;
+			resets = <&ccu RST_BUS_MSGBOX>;
+			interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 1 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 181 IRQ_TYPE_LEVEL_HIGH>,
+				     <GIC_SPI 174 IRQ_TYPE_LEVEL_HIGH>;
+			#mbox-cells = <1>;
+		};
+
+		rproc: remoteproc@7130000 {
+			compatible = "allwinner,sun55i-a523-rproc",
+				     "allwinner,sun55i-a527-rproc";
+			reg = <0x07130000 0x1000>,
+			      <0x07280000 0x40000>,
+			      <0x072c0000 0x40000>,
+			      <0x07010364 0x4>;
+			reg-names = "cfg", "r_sram", "r_sram1", "remap";
+			clocks = <&mcu_ccu CLK_BUS_MCU_RISCV_CFG>,
+				 <&mcu_ccu CLK_MCU_RISCV>,
+				 <&mcu_ccu CLK_BUS_MCU_PUBSRAM>,
+				 <&mcu_ccu CLK_BUS_MCU_RISCV_MSGBOX>;
+			clock-names = "bus", "core", "sram", "msgbox";
+			resets = <&mcu_ccu RST_BUS_MCU_RISCV_CFG>,
+				 <&mcu_ccu RST_BUS_MCU_RISCV_CORE>,
+				 <&mcu_ccu RST_BUS_MCU_PUBSRAM>,
+				 <&mcu_ccu RST_BUS_MCU_RISCV_MSGBOX>;
+			reset-names = "cfg", "core", "sram", "msgbox";
+			mboxes = <&msgbox 8>, <&msgbox 9>;
+			mbox-names = "rx", "tx";
+			status = "disabled";
+		};
 	};
 };