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diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28-var4.dts b/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28-var4.dts
new file mode 100644
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--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-kontron-sl28-var4.dts
@@ -0,0 +1,47 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Device Tree file for the Kontron SMARC-sAL28 board.
+ *
+ * This is for the network variant 4 which has two ethernet ports. It
+ * extends the base and provides one more port connected via RGMII.
+ *
+ * Copyright (C) 2021 Michael Walle <michael@walle.cc>
+ *
+ */
+
+/dts-v1/;
+#include "fsl-ls1028a-kontron-sl28.dts"
+#include <dt-bindings/net/qca-ar803x.h>
+
+/ {
+ model = "Kontron SMARC-sAL28 (Dual PHY)";
+ compatible = "kontron,sl28-var4", "kontron,sl28", "fsl,ls1028a";
+};
+
+&enetc_mdio_pf3 {
+ phy1: ethernet-phy@4 {
+ reg = <0x4>;
+ eee-broken-1000t;
+ eee-broken-100tx;
+ qca,clk-out-frequency = <125000000>;
+ qca,clk-out-strength = <AR803X_STRENGTH_FULL>;
+ qca,keep-pll-enabled;
+ vddio-supply = <&vddio>;
+
+ vddio: vddio-regulator {
+ regulator-name = "VDDIO";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ };
+
+ vddh: vddh-regulator {
+ regulator-name = "VDDH";
+ };
+ };
+};
+
+&enetc_port1 {
+ phy-handle = <&phy1>;
+ phy-mode = "rgmii-id";
+ status = "okay";
+};