diff --git a/target/linux/realtek/dts/rtl9302_plasmacloud_common.dtsi b/target/linux/realtek/dts/rtl9302_plasmacloud_common.dtsi
index 41eb699eb39..8ec411837b1 100644
--- a/target/linux/realtek/dts/rtl9302_plasmacloud_common.dtsi
+++ b/target/linux/realtek/dts/rtl9302_plasmacloud_common.dtsi
@@ -134,46 +134,14 @@
 };
 
 &mdio_bus0 {
-	/* External RTL8224 PHY */
-	phy0: ethernet-phy@0 {
-		reg = <0>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy1: ethernet-phy@1 {
-		reg = <1>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy2: ethernet-phy@2 {
-		reg = <2>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy3: ethernet-phy@3 {
-		reg = <3>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy8: ethernet-phy@4 {
-		reg = <4>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy9: ethernet-phy@5 {
-		reg = <5>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy10: ethernet-phy@6 {
-		reg = <6>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy11: ethernet-phy@7 {
-		reg = <7>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
+	PHY_C45(0, 0)
+	PHY_C45(1, 1)
+	PHY_C45(2, 2)
+	PHY_C45(3, 3)
+	PHY_C45(8, 4)
+	PHY_C45(9, 5)
+	PHY_C45(10, 6)
+	PHY_C45(11, 7)
 };
 
 &switch0 {
diff --git a/target/linux/realtek/dts/rtl9302_plasmacloud_mcx3.dts b/target/linux/realtek/dts/rtl9302_plasmacloud_mcx3.dts
index 98fbfe6b4ab..f6e1083162d 100644
--- a/target/linux/realtek/dts/rtl9302_plasmacloud_mcx3.dts
+++ b/target/linux/realtek/dts/rtl9302_plasmacloud_mcx3.dts
@@ -151,16 +151,8 @@
 };
 
 &mdio_bus0 {
-	/* External RTL8224 PHY */
-	phy0: ethernet-phy@0 {
-		reg = <0>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy1: ethernet-phy@1 {
-		reg = <1>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
+	PHY_C45(0, 0)
+	PHY_C45(1, 1)
 };
 
 &switch0 {
diff --git a/target/linux/realtek/dts/rtl9302_xikestor_sks8300-12e2t2x.dts b/target/linux/realtek/dts/rtl9302_xikestor_sks8300-12e2t2x.dts
index b479de6fb52..bd0f86c1694 100644
--- a/target/linux/realtek/dts/rtl9302_xikestor_sks8300-12e2t2x.dts
+++ b/target/linux/realtek/dts/rtl9302_xikestor_sks8300-12e2t2x.dts
@@ -147,71 +147,29 @@
 };
 
 &mdio_bus0 {
-	phy0: ethernet-phy@0 {
-		compatible = "ethernet-phy-ieee802.3-c45";
-		reg = <0>;
-	};
-	phy1: ethernet-phy@1 {
-		compatible = "ethernet-phy-ieee802.3-c45";
-		reg = <1>;
-	};
-	phy2: ethernet-phy@2 {
-		compatible = "ethernet-phy-ieee802.3-c45";
-		reg = <2>;
-	};
-	phy3: ethernet-phy@3 {
-		compatible = "ethernet-phy-ieee802.3-c45";
-		reg = <3>;
-	};
+	PHY_C45(0, 0)
+	PHY_C45(1, 1)
+	PHY_C45(2, 2)
+	PHY_C45(3, 3)
 };
 
 &mdio_bus1 {
-	phy8: ethernet-phy@0 {
-		compatible = "ethernet-phy-ieee802.3-c45";
-		reg = <0>;
-	};
-	phy9: ethernet-phy@1 {
-		compatible = "ethernet-phy-ieee802.3-c45";
-		reg = <1>;
-	};
-	phy10: ethernet-phy@2 {
-		compatible = "ethernet-phy-ieee802.3-c45";
-		reg = <2>;
-	};
-	phy11: ethernet-phy@3 {
-		compatible = "ethernet-phy-ieee802.3-c45";
-		reg = <3>;
-	};
+	PHY_C45(8, 0)
+	PHY_C45(9, 1)
+	PHY_C45(10, 2)
+	PHY_C45(11, 3)
 };
 
 &mdio_bus2 {
-	phy16: ethernet-phy@0 {
-		compatible = "ethernet-phy-ieee802.3-c45";
-		reg = <0>;
-	};
-	phy17: ethernet-phy@1 {
-		compatible = "ethernet-phy-ieee802.3-c45";
-		reg = <1>;
-	};
-	phy18: ethernet-phy@2 {
-		compatible = "ethernet-phy-ieee802.3-c45";
-		reg = <2>;
-	};
-	phy19: ethernet-phy@3 {
-		compatible = "ethernet-phy-ieee802.3-c45";
-		reg = <3>;
-	};
+	PHY_C45(16, 0)
+	PHY_C45(17, 1)
+	PHY_C45(18, 2)
+	PHY_C45(19, 3)
 };
 
 &mdio_bus3 {
-	phy24: ethernet-phy@0 {
-		compatible = "ethernet-phy-ieee802.3-c45";
-		reg = <0>;
-	};
-	phy25: ethernet-phy@1 {
-		compatible = "ethernet-phy-ieee802.3-c45";
-		reg = <1>;
-	};
+	PHY_C45(24, 0)
+	PHY_C45(25, 1)
 };
 
 &switch0 {
diff --git a/target/linux/realtek/dts/rtl9303_hasivo_s1100w-8xgt-se.dts b/target/linux/realtek/dts/rtl9303_hasivo_s1100w-8xgt-se.dts
index bce0f8219a7..9d0187adb8c 100644
--- a/target/linux/realtek/dts/rtl9303_hasivo_s1100w-8xgt-se.dts
+++ b/target/linux/realtek/dts/rtl9303_hasivo_s1100w-8xgt-se.dts
@@ -127,47 +127,17 @@
 };
 
 &mdio_bus0 {
-	phy0: ethernet-phy@0 {
-		compatible = "ethernet-phy-ieee802.3-c45";
-		reg = <0>;
-	};
-
-	phy8: ethernet-phy@1 {
-		compatible = "ethernet-phy-ieee802.3-c45";
-		reg = <1>;
-	};
-
-	phy16: ethernet-phy@2 {
-		compatible = "ethernet-phy-ieee802.3-c45";
-		reg = <2>;
-	};
-
-	phy20: ethernet-phy@3 {
-		compatible = "ethernet-phy-ieee802.3-c45";
-		reg = <3>;
-	};
+	PHY_C45(0, 0)
+	PHY_C45(8, 1)
+	PHY_C45(16, 2)
+	PHY_C45(20, 3)
 };
 
 &mdio_bus3 {
-	phy24: ethernet-phy@16 {
-		compatible = "ethernet-phy-ieee802.3-c45";
-		reg = <16>;
-	};
-
-	phy25: ethernet-phy@17 {
-		compatible = "ethernet-phy-ieee802.3-c45";
-		reg = <17>;
-	};
-
-	phy26: ethernet-phy@18 {
-		compatible = "ethernet-phy-ieee802.3-c45";
-		reg = <18>;
-	};
-
-	phy27: ethernet-phy@19 {
-		compatible = "ethernet-phy-ieee802.3-c45";
-		reg = <19>;
-	};
+	PHY_C45(24, 16)
+	PHY_C45(25, 17)
+	PHY_C45(26, 18)
+	PHY_C45(27, 19)
 };
 
 &switch0 {
diff --git a/target/linux/realtek/dts/rtl9303_hasivo_s1100wp-8gt-se.dts b/target/linux/realtek/dts/rtl9303_hasivo_s1100wp-8gt-se.dts
index c61db4ff506..d10df7cb176 100644
--- a/target/linux/realtek/dts/rtl9303_hasivo_s1100wp-8gt-se.dts
+++ b/target/linux/realtek/dts/rtl9303_hasivo_s1100wp-8gt-se.dts
@@ -175,55 +175,17 @@
 };
 
 &mdio_bus0 {
-	/* External RTL8221B PHY */
-	phy0: ethernet-phy@1 {
-		reg = <1>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	/* External RTL8221B PHY */
-	phy8: ethernet-phy@2 {
-		reg = <2>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	/* External RTL8221B PHY */
-	phy16: ethernet-phy@3 {
-		reg = <3>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	/* External RTL8221B PHY */
-	phy20: ethernet-phy@4 {
-		reg = <4>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
+	PHY_C45(0, 1)
+	PHY_C45(8, 2)
+	PHY_C45(16, 3)
+	PHY_C45(20, 4)
 };
 
 &mdio_bus1 {
-	/* External RTL8221B PHY */
-	phy24: ethernet-phy@1 {
-		reg = <1>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	/* External RTL8221B PHY */
-	phy25: ethernet-phy@2 {
-		reg = <2>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	/* External RTL8221B PHY */
-	phy26: ethernet-phy@3 {
-		reg = <3>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	/* External RTL8221B PHY */
-	phy27: ethernet-phy@4 {
-		reg = <4>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
+	PHY_C45(24, 1)
+	PHY_C45(25, 2)
+	PHY_C45(26, 3)
+	PHY_C45(27, 4)
 };
 
 &switch0 {
diff --git a/target/linux/realtek/dts/rtl9312_plasmacloud_common.dtsi b/target/linux/realtek/dts/rtl9312_plasmacloud_common.dtsi
index d0c9fecb90a..19222c8bfb0 100644
--- a/target/linux/realtek/dts/rtl9312_plasmacloud_common.dtsi
+++ b/target/linux/realtek/dts/rtl9312_plasmacloud_common.dtsi
@@ -239,128 +239,33 @@
 };
 
 &mdio_bus0 {
-	/* External RTL8224 PHY */
-	phy0: ethernet-phy@0 {
-		reg = <0>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy1: ethernet-phy@1 {
-		reg = <1>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy4: ethernet-phy@2 {
-		reg = <2>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy5: ethernet-phy@3 {
-		reg = <3>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy8: ethernet-phy@4 {
-		reg = <4>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy9: ethernet-phy@5 {
-		reg = <5>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy12: ethernet-phy@6 {
-		reg = <6>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy13: ethernet-phy@7 {
-		reg = <7>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy16: ethernet-phy@8 {
-		reg = <8>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy17: ethernet-phy@9 {
-		reg = <9>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy20: ethernet-phy@10 {
-		reg = <10>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy21: ethernet-phy@11 {
-		reg = <11>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
+	PHY_C45(0, 0)
+	PHY_C45(1, 1)
+	PHY_C45(4, 2)
+	PHY_C45(5, 3)
+	PHY_C45(8, 4)
+	PHY_C45(9, 5)
+	PHY_C45(12, 6)
+	PHY_C45(13, 7)
+	PHY_C45(16, 8)
+	PHY_C45(17, 9)
+	PHY_C45(20, 10)
+	PHY_C45(21, 11)
 };
 
 &mdio_bus1 {
-	phy24: ethernet-phy@12 {
-		reg = <12>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy25: ethernet-phy@13 {
-		reg = <13>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy28: ethernet-phy@14 {
-		reg = <14>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy29: ethernet-phy@15 {
-		reg = <15>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy32: ethernet-phy@16 {
-		reg = <16>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy33: ethernet-phy@17 {
-		reg = <17>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy36: ethernet-phy@18 {
-		reg = <18>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy37: ethernet-phy@19 {
-		reg = <19>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy40: ethernet-phy@20 {
-		reg = <20>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy41: ethernet-phy@21 {
-		reg = <21>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy44: ethernet-phy@22 {
-		reg = <22>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
-
-	phy45: ethernet-phy@23 {
-		reg = <23>;
-		compatible = "ethernet-phy-ieee802.3-c45";
-	};
+	PHY_C45(24, 12)
+	PHY_C45(25, 13)
+	PHY_C45(28, 14)
+	PHY_C45(29, 15)
+	PHY_C45(32, 16)
+	PHY_C45(33, 17)
+	PHY_C45(36, 18)
+	PHY_C45(37, 19)
+	PHY_C45(40, 20)
+	PHY_C45(41, 21)
+	PHY_C45(44, 22)
+	PHY_C45(45, 23)
 };
 
 &switch0 {