diff --git a/target/linux/ramips/dts/kn_rc.dts b/target/linux/ramips/dts/kn_rc.dts
index c63c1a39148..2709b5188a8 100644
--- a/target/linux/ramips/dts/kn_rc.dts
+++ b/target/linux/ramips/dts/kn_rc.dts
@@ -56,6 +56,17 @@
 			linux,code = <BTN_0>;
 		};
 	};
+
+	gpio_export {
+		compatible = "gpio-export";
+		#size-cells = <0>;
+
+		usb_power {
+			gpio-export,name = "usb";
+			gpio-export,output = <1>;
+			gpios = <&gpio0 21 GPIO_ACTIVE_HIGH>;
+		};
+	};
 };
 
 &spi0 {
diff --git a/target/linux/ramips/dts/kn_rf.dts b/target/linux/ramips/dts/kn_rf.dts
index 22b16b05cc1..1190eab714d 100644
--- a/target/linux/ramips/dts/kn_rf.dts
+++ b/target/linux/ramips/dts/kn_rf.dts
@@ -56,6 +56,17 @@
 			linux,code = <BTN_0>;
 		};
 	};
+
+	gpio_export {
+		compatible = "gpio-export";
+		#size-cells = <0>;
+
+		usb_power {
+			gpio-export,name = "usb";
+			gpio-export,output = <1>;
+			gpios = <&gpio0 21 GPIO_ACTIVE_HIGH>;
+		};
+	};
 };
 
 &spi0 {