diff --git a/br-ext-chip-hisilicon/board/hi3516av100/kernel/overlay/arch/arm/boot/dts/hi3516a-demb.dts b/br-ext-chip-hisilicon/board/hi3516av100/kernel/overlay/arch/arm/boot/dts/hi3516a-demb.dts
index 1b8b03a7..23bcafc6 100644
--- a/br-ext-chip-hisilicon/board/hi3516av100/kernel/overlay/arch/arm/boot/dts/hi3516a-demb.dts
+++ b/br-ext-chip-hisilicon/board/hi3516av100/kernel/overlay/arch/arm/boot/dts/hi3516a-demb.dts
@@ -154,7 +154,7 @@
 
 &mdio {
 	ethphy: ethernet-phy@1 {
-		reg = <1>;
+		/* reg = <1>; Disabled to invoke autoprobe */
 	};
 };