diff --git a/arch/arm/boot/dts/am33xx.dtsi b/arch/arm/boot/dts/am33xx.dtsi
index 4a4e02d0ce9e..3a0a161342ba 100644
--- a/arch/arm/boot/dts/am33xx.dtsi
+++ b/arch/arm/boot/dts/am33xx.dtsi
@@ -347,6 +347,15 @@ dcan1: d_can@481d0000 {
 			status = "disabled";
 		};
 
+		mailbox: mailbox@480C8000 {
+			compatible = "ti,omap4-mailbox";
+			reg = <0x480C8000 0x200>;
+			interrupts = <77>;
+			ti,hwmods = "mailbox";
+			ti,mbox-num-users = <4>;
+			ti,mbox-num-fifos = <8>;
+		};
+
 		timer1: timer@44e31000 {
 			compatible = "ti,am335x-timer-1ms";
 			reg = <0x44e31000 0x400>;