diff --git a/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts b/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts
index 42d62d1..35bba4e 100644
--- a/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts
+++ b/arch/arm/boot/dts/sun8i-r40-bananapi-m2-ultra.dts
@@ -305,6 +305,12 @@
 	status = "okay";
 };
 
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart2_pi_pins>;
+	status = "disabled";
+};
+
 &uart3 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart3_pg_pins>, <&uart3_rts_cts_pg_pins>;
@@ -324,6 +330,24 @@
 	};
 };
 
+&uart4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart4_ph_pins>;
+	status = "disabled";
+};
+
+&uart5 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart5_ph_pins>;
+	status = "disabled";
+};
+
+&uart7 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart7_pi_pins>;
+	status = "disabled";
+};
+
 &usbphy {
 	usb1_vbus-supply = <&reg_vcc5v0>;
 	usb2_vbus-supply = <&reg_vcc5v0>;
diff --git a/arch/arm/boot/dts/sun8i-v40-bananapi-m2-berry.dts b/arch/arm/boot/dts/sun8i-v40-bananapi-m2-berry.dts
index 15c22b0..967833c 100644
--- a/arch/arm/boot/dts/sun8i-v40-bananapi-m2-berry.dts
+++ b/arch/arm/boot/dts/sun8i-v40-bananapi-m2-berry.dts
@@ -280,6 +280,12 @@
 	status = "okay";
 };
 
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart2_pi_pins>;
+	status = "disabled";
+};
+
 &uart3 {
 	pinctrl-names = "default";
 	pinctrl-0 = <&uart3_pg_pins>, <&uart3_rts_cts_pg_pins>;
@@ -299,6 +305,24 @@
 	};
 };
 
+&uart4 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart4_ph_pins>;
+	status = "disabled";
+};
+
+&uart5 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart5_ph_pins>;
+	status = "disabled";
+};
+
+&uart7 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&uart7_pi_pins>;
+	status = "disabled";
+};
+
 &usbphy {
 	usb1_vbus-supply = <&reg_vcc5v0>;
 	status = "okay";