diff --git a/arch/arm64/boot/dts/rockchip/rk3588s-odroid-m2-android.dts b/arch/arm64/boot/dts/rockchip/rk3588s-odroid-m2-android.dts
index 5981c4f1f8a9..2e14e4458469 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588s-odroid-m2-android.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588s-odroid-m2-android.dts
@@ -26,3 +26,7 @@
 &chosen {
 	/delete-property/ bootargs;
 };
+
+&fiq_debugger {
+	rockchip,serial-id = <7>;
+};