[][kernel][mt7986][eth][Change GMAC0/1 DTS configuratoin for HSGMII]

[Description]
Change GMAC0/1 DTS configuratoin for HSGMII.

1. Change GMAC0/1 DTS configuration to phy-handle.
2. Change PHY reset to bus level reset.

[Release-log]
N/A

Change-Id: I3b59f4e62aa5d2348f229047624db4a298785ff3
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/6376188
diff --git a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986a-2500wan-sd-rfb.dts b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986a-2500wan-sd-rfb.dts
index 6af58aa..153ac09 100644
--- a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986a-2500wan-sd-rfb.dts
+++ b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7986a-2500wan-sd-rfb.dts
@@ -88,48 +88,31 @@
 		compatible = "mediatek,eth-mac";
 		reg = <0>;
 		phy-mode = "2500base-x";
-
-		fixed-link {
-			speed = <2500>;
-			full-duplex;
-			pause;
-			link-gpio = <&pio 47 0>;
-			phy-handle = <&phy5>;
-			label = "lan5";
-		};
+		phy-handle = <&phy5>;
 	};
 
 	gmac1: mac@1 {
 		compatible = "mediatek,eth-mac";
 		reg = <1>;
 		phy-mode = "2500base-x";
-
-		fixed-link {
-			speed = <2500>;
-			full-duplex;
-			pause;
-			link-gpio = <&pio 46 0>;
-			phy-handle = <&phy6>;
-		};
+		phy-handle = <&phy6>;
 	};
 
 	mdio: mdio-bus {
 		#address-cells = <1>;
 		#size-cells = <0>;
 
+		reset-gpios = <&pio 6 1>;
+		reset-delay-us = <600>;
+
 		phy5: phy@5 {
-			compatible = "ethernet-phy-id67c9.de0a";
+			compatible = "ethernet-phy-ieee802.3-c45";
 			reg = <5>;
-			reset-gpios = <&pio 6 1>;
-			reset-assert-us = <600>;
-			reset-deassert-us = <20000>;
-			phy-mode = "2500base-x";
 		};
 
 		phy6: phy@6 {
-			compatible = "ethernet-phy-id67c9.de0a";
+			compatible = "ethernet-phy-ieee802.3-c45";
 			reg = <6>;
-			phy-mode = "2500base-x";
 		};
 
 		switch@0 {