diff --git a/arch/arm64/boot/dts/broadcom/northstar2/ns2.dtsi b/arch/arm64/boot/dts/broadcom/northstar2/ns2.dtsi
index 18cdbc20f03f..e1b80e569cdf 100644
--- a/arch/arm64/boot/dts/broadcom/northstar2/ns2.dtsi
+++ b/arch/arm64/boot/dts/broadcom/northstar2/ns2.dtsi
@@ -294,7 +294,7 @@ dma0: dma-controller@61360000 {
 			clock-names = "apb_pclk";
 		};
 
-		smmu: mmu@64000000 {
+		smmu: iommu@64000000 {
 			compatible = "arm,mmu-500";
 			reg = <0x64000000 0x40000>;
 			#global-interrupts = <2>;
diff --git a/arch/arm64/boot/dts/broadcom/stingray/stingray.dtsi b/arch/arm64/boot/dts/broadcom/stingray/stingray.dtsi
index e05901abe957..a9186166c068 100644
--- a/arch/arm64/boot/dts/broadcom/stingray/stingray.dtsi
+++ b/arch/arm64/boot/dts/broadcom/stingray/stingray.dtsi
@@ -186,7 +186,7 @@ gic_its: gic-its@63c20000 {
 			};
 		};
 
-		smmu: mmu@3000000 {
+		smmu: iommu@3000000 {
 			compatible = "arm,mmu-500";
 			reg = <0x03000000 0x80000>;
 			#global-interrupts = <1>;
@@ -475,7 +475,6 @@ i2c1: i2c@e0000 {
 		};
 
 		uart0: serial@100000 {
-			device_type = "serial";
 			compatible = "snps,dw-apb-uart";
 			reg = <0x00100000 0x1000>;
 			reg-shift = <2>;
@@ -486,7 +485,6 @@ uart0: serial@100000 {
 		};
 
 		uart1: serial@110000 {
-			device_type = "serial";
 			compatible = "snps,dw-apb-uart";
 			reg = <0x00110000 0x1000>;
 			reg-shift = <2>;
@@ -497,7 +495,6 @@ uart1: serial@110000 {
 		};
 
 		uart2: serial@120000 {
-			device_type = "serial";
 			compatible = "snps,dw-apb-uart";
 			reg = <0x00120000 0x1000>;
 			reg-shift = <2>;
@@ -508,7 +505,6 @@ uart2: serial@120000 {
 		};
 
 		uart3: serial@130000 {
-			device_type = "serial";
 			compatible = "snps,dw-apb-uart";
 			reg = <0x00130000 0x1000>;
 			reg-shift = <2>;