diff --git a/arch/arm64/boot/dts/renesas/ebisu.dtsi b/arch/arm64/boot/dts/renesas/ebisu.dtsi
index add60324e0e4..4b3775afcb01 100644
--- a/arch/arm64/boot/dts/renesas/ebisu.dtsi
+++ b/arch/arm64/boot/dts/renesas/ebisu.dtsi
@@ -322,6 +322,8 @@
 		reg = <0>;
 		interrupts-extended = <&gpio2 21 IRQ_TYPE_LEVEL_LOW>;
 		reset-gpios = <&gpio1 20 GPIO_ACTIVE_LOW>;
+		reset-assert-us = <10000>;
+		reset-deassert-us = <300>;
 		/*
 		 * TX clock internal delay mode is required for reliable
 		 * 1Gbps communication using the KSZ9031RNX phy present on