ARM: dts: add QorIQ DPAA 1 FMan v3 device tree nodes

Add the QorIQ DPAA Frame Manager v3 device tree nodes description.
The device tree fragments are copied over with little modification
from the Linux kernel source code.

Signed-off-by: Madalin Bucur <madalin.bucur@oss.nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/arch/arm/dts/qoriq-fman3-0-1g-2.dtsi b/arch/arm/dts/qoriq-fman3-0-1g-2.dtsi
new file mode 100644
index 0000000..7c5edc0
--- /dev/null
+++ b/arch/arm/dts/qoriq-fman3-0-1g-2.dtsi
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+/*
+ * QorIQ FMan v3 1g port #2 device tree
+ *
+ * Copyright 2012-2015 Freescale Semiconductor Inc.
+ * Copyright 2020 NXP
+ *
+ */
+
+fman@1a00000 {
+	fman0_rx_0x0a: port@8a000 {
+		cell-index = <0xa>;
+		compatible = "fsl,fman-v3-port-rx";
+		reg = <0x8a000 0x1000>;
+	};
+
+	fman0_tx_0x2a: port@aa000 {
+		cell-index = <0x2a>;
+		compatible = "fsl,fman-v3-port-tx";
+		reg = <0xaa000 0x1000>;
+	};
+
+	ethernet@e4000 {
+		cell-index = <2>;
+		compatible = "fsl,fman-memac";
+		reg = <0xe4000 0x1000>;
+		fsl,fman-ports = <&fman0_rx_0x0a &fman0_tx_0x2a>;
+		ptp-timer = <&ptp_timer0>;
+		pcsphy-handle = <&pcsphy2>;
+		status = "disabled";
+	};
+
+	mdio@e5000 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "fsl,fman-memac-mdio", "fsl,fman-xmdio";
+		reg = <0xe5000 0x1000>;
+
+		pcsphy2: ethernet-phy@0 {
+			reg = <0x0>;
+		};
+	};
+};