diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi
index 46780bb48bbf..ab5474e5d1c8 100644
--- a/arch/arm/boot/dts/bcm2835-rpi.dtsi
+++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi
@@ -14,6 +14,13 @@ act {
 			linux,default-trigger = "heartbeat";
 		};
 	};
+
+	soc {
+		firmware: firmware {
+			compatible = "raspberrypi,bcm2835-firmware";
+			mboxes = <&mailbox>;
+		};
+	};
 };
 
 &gpio {