diff --git a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
index dd7c6aee8c61..c6c79dde79c5 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common.dtsi
@@ -644,6 +644,7 @@ &pcie1_rc {
 };
 
 &mailbox0_cluster0 {
+	status = "okay";
 	interrupts = <436>;
 
 	mbox_mcu_r5fss0_core0: mbox-mcu-r5fss0-core0 {
@@ -653,6 +654,7 @@ mbox_mcu_r5fss0_core0: mbox-mcu-r5fss0-core0 {
 };
 
 &mailbox0_cluster1 {
+	status = "okay";
 	interrupts = <432>;
 
 	mbox_mcu_r5fss0_core1: mbox-mcu-r5fss0-core1 {
@@ -661,46 +663,6 @@ mbox_mcu_r5fss0_core1: mbox-mcu-r5fss0-core1 {
 	};
 };
 
-&mailbox0_cluster2 {
-	status = "disabled";
-};
-
-&mailbox0_cluster3 {
-	status = "disabled";
-};
-
-&mailbox0_cluster4 {
-	status = "disabled";
-};
-
-&mailbox0_cluster5 {
-	status = "disabled";
-};
-
-&mailbox0_cluster6 {
-	status = "disabled";
-};
-
-&mailbox0_cluster7 {
-	status = "disabled";
-};
-
-&mailbox0_cluster8 {
-	status = "disabled";
-};
-
-&mailbox0_cluster9 {
-	status = "disabled";
-};
-
-&mailbox0_cluster10 {
-	status = "disabled";
-};
-
-&mailbox0_cluster11 {
-	status = "disabled";
-};
-
 &mcu_r5fss0_core0 {
 	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
 			<&mcu_r5fss0_core0_memory_region>;
diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
index 9081c791a312..3dc624a379c5 100644
--- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi
@@ -514,6 +514,7 @@ mailbox0_cluster0: mailbox@31f80000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&intr_main_navss>;
+			status = "disabled";
 		};
 
 		mailbox0_cluster1: mailbox@31f81000 {
@@ -523,6 +524,7 @@ mailbox0_cluster1: mailbox@31f81000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&intr_main_navss>;
+			status = "disabled";
 		};
 
 		mailbox0_cluster2: mailbox@31f82000 {
@@ -532,6 +534,7 @@ mailbox0_cluster2: mailbox@31f82000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&intr_main_navss>;
+			status = "disabled";
 		};
 
 		mailbox0_cluster3: mailbox@31f83000 {
@@ -541,6 +544,7 @@ mailbox0_cluster3: mailbox@31f83000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&intr_main_navss>;
+			status = "disabled";
 		};
 
 		mailbox0_cluster4: mailbox@31f84000 {
@@ -550,6 +554,7 @@ mailbox0_cluster4: mailbox@31f84000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&intr_main_navss>;
+			status = "disabled";
 		};
 
 		mailbox0_cluster5: mailbox@31f85000 {
@@ -559,6 +564,7 @@ mailbox0_cluster5: mailbox@31f85000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&intr_main_navss>;
+			status = "disabled";
 		};
 
 		mailbox0_cluster6: mailbox@31f86000 {
@@ -568,6 +574,7 @@ mailbox0_cluster6: mailbox@31f86000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&intr_main_navss>;
+			status = "disabled";
 		};
 
 		mailbox0_cluster7: mailbox@31f87000 {
@@ -577,6 +584,7 @@ mailbox0_cluster7: mailbox@31f87000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&intr_main_navss>;
+			status = "disabled";
 		};
 
 		mailbox0_cluster8: mailbox@31f88000 {
@@ -586,6 +594,7 @@ mailbox0_cluster8: mailbox@31f88000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&intr_main_navss>;
+			status = "disabled";
 		};
 
 		mailbox0_cluster9: mailbox@31f89000 {
@@ -595,6 +604,7 @@ mailbox0_cluster9: mailbox@31f89000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&intr_main_navss>;
+			status = "disabled";
 		};
 
 		mailbox0_cluster10: mailbox@31f8a000 {
@@ -604,6 +614,7 @@ mailbox0_cluster10: mailbox@31f8a000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&intr_main_navss>;
+			status = "disabled";
 		};
 
 		mailbox0_cluster11: mailbox@31f8b000 {
@@ -613,6 +624,7 @@ mailbox0_cluster11: mailbox@31f8b000 {
 			ti,mbox-num-users = <4>;
 			ti,mbox-num-fifos = <16>;
 			interrupt-parent = <&intr_main_navss>;
+			status = "disabled";
 		};
 
 		ringacc: ringacc@3c000000 {
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 a61060c6bc19..d1c8047d9672 100644
--- a/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
+++ b/arch/arm64/boot/dts/ti/k3-am654-base-board.dts
@@ -416,6 +416,7 @@ &serdes1 {
 };
 
 &mailbox0_cluster0 {
+	status = "okay";
 	interrupts = <436>;
 
 	mbox_mcu_r5fss0_core0: mbox-mcu-r5fss0-core0 {
@@ -425,6 +426,7 @@ mbox_mcu_r5fss0_core0: mbox-mcu-r5fss0-core0 {
 };
 
 &mailbox0_cluster1 {
+	status = "okay";
 	interrupts = <432>;
 
 	mbox_mcu_r5fss0_core1: mbox-mcu-r5fss0-core1 {
@@ -433,46 +435,6 @@ mbox_mcu_r5fss0_core1: mbox-mcu-r5fss0-core1 {
 	};
 };
 
-&mailbox0_cluster2 {
-	status = "disabled";
-};
-
-&mailbox0_cluster3 {
-	status = "disabled";
-};
-
-&mailbox0_cluster4 {
-	status = "disabled";
-};
-
-&mailbox0_cluster5 {
-	status = "disabled";
-};
-
-&mailbox0_cluster6 {
-	status = "disabled";
-};
-
-&mailbox0_cluster7 {
-	status = "disabled";
-};
-
-&mailbox0_cluster8 {
-	status = "disabled";
-};
-
-&mailbox0_cluster9 {
-	status = "disabled";
-};
-
-&mailbox0_cluster10 {
-	status = "disabled";
-};
-
-&mailbox0_cluster11 {
-	status = "disabled";
-};
-
 &mcu_r5fss0_core0 {
 	memory-region = <&mcu_r5fss0_core0_dma_memory_region>,
 			<&mcu_r5fss0_core0_memory_region>;