samples: net: gptp: add imx943_evk_mimx94398_m33_ddr support

Added imx943_evk_mimx94398_m33_ddr support.

Signed-off-by: Yangbo Lu <[email protected]>

Author: yangbolu1991

samples/net/gptp/boards/imx943_evk_mimx94398_m33_ddr.conf

@@ -0,0 +1,6 @@
+CONFIG_NET_L2_ETHERNET=y
+CONFIG_ETH_DRIVER=y
+CONFIG_NET_IF_MAX_IPV4_COUNT=7
+CONFIG_NET_DSA=y
+CONFIG_NET_GPTP_MONITOR_SYNC_STATUS=y
+CONFIG_NET_GPTP_NUM_PORTS=5

samples/net/gptp/boards/imx943_evk_mimx94398_m33_ddr.overlay

@@ -0,0 +1,72 @@
+/*
+ * Copyright 2025 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&emdio {
+	status = "okay";
+
+	phy0: phy@2 {
+		status = "okay";
+	};
+
+	phy1: phy@3 {
+		status = "okay";
+	};
+
+	phy2: phy@5 {
+		status = "okay";
+	};
+
+	phy3: phy@6 {
+		status = "okay";
+	};
+
+	phy4: phy@7 {
+		status = "okay";
+	};
+};
+
+&enetc_psi0 {
+	ptp-clock = <&netc_ptp_clock0>;
+	status = "okay";
+};
+
+&enetc_psi1 {
+	ptp-clock = <&netc_ptp_clock0>;
+	status = "okay";
+};
+
+&enetc_psi2 {
+	ptp-clock = <&netc_ptp_clock0>;
+	status = "okay";
+};
+
+/* Internal port */
+&enetc_psi3 {
+	status = "okay";
+};
+
+&netc_switch {
+	status = "okay";
+
+	switch_port0: switch_port@0 {
+		ptp-clock = <&netc_ptp_clock0>;
+		status = "okay";
+	};
+
+	switch_port1: switch_port@1 {
+		ptp-clock = <&netc_ptp_clock0>;
+		status = "okay";
+	};
+
+	/* Internal port */
+	switch_port3: switch_port@3 {
+		status = "okay";
+	};
+};
+
+&netc_ptp_clock0 {
+	status = "okay";
+};