diff --git a/target/linux/ramips/dts/mt7621_h3c_tx180x.dtsi b/target/linux/ramips/dts/mt7621_h3c_tx180x.dtsi
index 1db4b43811..21cfeb2ec1 100644
--- a/target/linux/ramips/dts/mt7621_h3c_tx180x.dtsi
+++ b/target/linux/ramips/dts/mt7621_h3c_tx180x.dtsi
@@ -16,6 +16,7 @@
 
 	chosen {
 		bootargs = "console=ttyS0,115200";
+		bootargs-override = "console=ttyS0,115200";
 	};
 
 	keys {
@@ -125,6 +126,13 @@
 	status = "disabled";
 };
 
+&state_default {
+	gpio {
+		groups = "jtag";
+		function = "gpio";
+	};
+};
+
 &switch0 {
 	ports {
 		port@1 {