diff --git a/target/linux/ramips/dts/mt7621_h3c_tx180x.dtsi b/target/linux/ramips/dts/mt7621_h3c_tx180x.dtsi
index a02d16ba6e..1db4b43811 100644
--- a/target/linux/ramips/dts/mt7621_h3c_tx180x.dtsi
+++ b/target/linux/ramips/dts/mt7621_h3c_tx180x.dtsi
@@ -117,6 +117,7 @@
 		compatible = "mediatek,mt76";
 		reg = <0x0000 0 0 0 0>;
 		mediatek,mtd-eeprom = <&factory 0x0>;
+		mediatek,disable-radar-background;
 	};
 };
 
diff --git a/target/linux/ramips/dts/mt7621_jcg_q20.dts b/target/linux/ramips/dts/mt7621_jcg_q20.dts
index f0e829393c..e25adf5ee1 100644
--- a/target/linux/ramips/dts/mt7621_jcg_q20.dts
+++ b/target/linux/ramips/dts/mt7621_jcg_q20.dts
@@ -140,6 +140,7 @@
 		compatible = "mediatek,mt76";
 		reg = <0x0000 0 0 0 0>;
 		mediatek,mtd-eeprom = <&factory 0x0>;
+		mediatek,disable-radar-background;
 	};
 };
 
diff --git a/target/linux/ramips/dts/mt7621_totolink_x5000r.dts b/target/linux/ramips/dts/mt7621_totolink_x5000r.dts
index b05d83978d..78ab2bc6ce 100644
--- a/target/linux/ramips/dts/mt7621_totolink_x5000r.dts
+++ b/target/linux/ramips/dts/mt7621_totolink_x5000r.dts
@@ -94,6 +94,7 @@
 		compatible = "mediatek,mt76";
 		reg = <0x0000 0 0 0 0>;
 		mediatek,mtd-eeprom = <&factory 0x0000>;
+		mediatek,disable-radar-background;
 	};
 };
 
diff --git a/target/linux/ramips/dts/mt7621_ubnt_unifi-6-lite.dts b/target/linux/ramips/dts/mt7621_ubnt_unifi-6-lite.dts
index d374fd3dde..b3a97ca97e 100644
--- a/target/linux/ramips/dts/mt7621_ubnt_unifi-6-lite.dts
+++ b/target/linux/ramips/dts/mt7621_ubnt_unifi-6-lite.dts
@@ -81,4 +81,5 @@
 	mediatek,mtd-eeprom = <&factory 0x20000>;
 	mtd-mac-address = <&eeprom 0x6>;
 	ieee80211-freq-limit = <5000000 6000000>;
+	mediatek,disable-radar-background;
 };
diff --git a/target/linux/ramips/dts/mt7621_xiaomi_mi-router-cr660x.dtsi b/target/linux/ramips/dts/mt7621_xiaomi_mi-router-cr660x.dtsi
index dfdbcc77d4..6ad286b61f 100644
--- a/target/linux/ramips/dts/mt7621_xiaomi_mi-router-cr660x.dtsi
+++ b/target/linux/ramips/dts/mt7621_xiaomi_mi-router-cr660x.dtsi
@@ -136,6 +136,7 @@
 		compatible = "mediatek,mt76";
 		reg = <0x0000 0 0 0 0>;
 		mediatek,mtd-eeprom = <&factory 0x0>;
+		mediatek,disable-radar-background;
 	};
 };
 
diff --git a/target/linux/ramips/dts/mt7621_yuncore_ax820.dts b/target/linux/ramips/dts/mt7621_yuncore_ax820.dts
index 9775ec3572..7217e0307a 100644
--- a/target/linux/ramips/dts/mt7621_yuncore_ax820.dts
+++ b/target/linux/ramips/dts/mt7621_yuncore_ax820.dts
@@ -102,6 +102,7 @@
 		compatible = "mediatek,mt76";
 		reg = <0x0000 0 0 0 0>;
 		mediatek,mtd-eeprom = <&factory 0x0>;
+		mediatek,disable-radar-background;
 	};
 };