diff --git a/arch/arm64/boot/dts/amlogic/meson-s7d.dtsi b/arch/arm64/boot/dts/amlogic/meson-s7d.dtsi
index b88a5914a..17f156c82 100644
--- a/arch/arm64/boot/dts/amlogic/meson-s7d.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-s7d.dtsi
@@ -292,6 +292,7 @@
 		compatible = "amlogic,meson-vrtc";
 		reg = <0x0 0xfe010288 0x0 0x4>;
 		status = "okay";
+		mboxes = <&mbox_fifo S7D_REE2AO_VRTC>;
 	};
 
 	audio_data: audio_data {