diff --git a/arch/arm/boot/dts/rk3036-echo.dts b/arch/arm/boot/dts/rk3036-echo.dts
index 2fb411da8617..f0beac5798b3 100644
--- a/arch/arm/boot/dts/rk3036-echo.dts
+++ b/arch/arm/boot/dts/rk3036-echo.dts
@@ -50,7 +50,6 @@
 		compatible = "rockchip,fiq-debugger";
 		interrupts = <GIC_SPI 127 IRQ_TYPE_LEVEL_LOW>;
 		rockchip,serial-id = <2>;
-		rockchip,signal-irq = <106>;
 		rockchip,wake-irq = <0>;
 		/* If enable uart uses irq instead of fiq */
 		rockchip,irq-mode-enable = <0>;