diff --git a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
index f86e18783205e1..93d7243f8351da 100644
--- a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
@@ -66,7 +66,7 @@
 		};
 
 		rtos_ipc_memory_region: ipc-memories@a2000000 {
-			reg = <0x00 0xa2000000 0x00 0x00100000>;
+			reg = <0x00 0xa2000000 0x00 0x00200000>;
 			alignment = <0x1000>;
 			no-map;
 		};