armv8: ls1028aqds: add lpuart dts support

Rename fsl-ls1028a-qds.dts to fsl-ls1028a-qds.dtsi so that
it can be used as common device tree for lpuart and duart.
Add lpuart device tree and duart device tree respectively
for qds which are used with duart and lpuart console.

Signed-off-by: Vabhav Sharma <vabhav.sharma@nxp.com>
Signed-off-by: Yuantian Tang <andy.tang@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/arch/arm/dts/fsl-ls1028a-qds.dtsi b/arch/arm/dts/fsl-ls1028a-qds.dtsi
new file mode 100644
index 0000000..4f56f40
--- /dev/null
+++ b/arch/arm/dts/fsl-ls1028a-qds.dtsi
@@ -0,0 +1,186 @@
+// SPDX-License-Identifier: GPL-2.0+ OR X11
+/*
+ * NXP ls1028AQDS device tree source
+ *
+ * Copyright 2019 NXP
+ *
+ */
+
+/dts-v1/;
+
+#include "fsl-ls1028a.dtsi"
+
+/ {
+	model = "NXP Layerscape 1028a QDS Board";
+	compatible = "fsl,ls1028a-qds", "fsl,ls1028a";
+	aliases {
+		spi0 = &fspi;
+	};
+
+};
+
+&dspi0 {
+	status = "okay";
+};
+
+&dspi1 {
+	status = "okay";
+};
+
+&dspi2 {
+	status = "okay";
+};
+
+&esdhc0 {
+	status = "okay";
+};
+
+&esdhc1 {
+	status = "okay";
+
+};
+
+&fspi {
+	status = "okay";
+
+	mt35xu02g0: flash@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "jedec,spi-nor";
+		spi-max-frequency = <50000000>;
+		reg = <0>;
+		spi-rx-bus-width = <8>;
+		spi-tx-bus-width = <1>;
+	};
+};
+
+&i2c0 {
+	status = "okay";
+	u-boot,dm-pre-reloc;
+
+	fpga@66 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "simple-mfd";
+		reg = <0x66>;
+
+		mux-mdio@54 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "mdio-mux-i2creg";
+			reg = <0x54>;
+			#mux-control-cells = <1>;
+			mux-reg-masks = <0x54 0xf0>;
+			mdio-parent-bus = <&mdio0>;
+
+			/* on-board MDIO with a single RGMII PHY */
+			mdio@00 {
+				#address-cells = <1>;
+				#size-cells = <0>;
+				reg = <0x00>;
+
+				qds_phy0: phy@5 {
+					reg = <5>;
+				};
+			};
+			/* slot 1 */
+			slot1: mdio@40 {
+				#address-cells = <1>;
+				#size-cells = <0>;
+				reg = <0x40>;
+			};
+			/* slot 2 */
+			slot2: mdio@50 {
+				#address-cells = <1>;
+				#size-cells = <0>;
+				reg = <0x50>;
+			};
+			/* slot 3 */
+			slot3: mdio@60 {
+				#address-cells = <1>;
+				#size-cells = <0>;
+				reg = <0x60>;
+			};
+			/* slot 4 */
+			slot4: mdio@70 {
+				#address-cells = <1>;
+				#size-cells = <0>;
+				reg = <0x70>;
+			};
+		};
+	};
+
+	i2c-mux@77 {
+		compatible = "nxp,pca9547";
+		reg = <0x77>;
+		#address-cells = <1>;
+		#size-cells = <0>;
+	};
+};
+
+&i2c1 {
+	status = "okay";
+
+	rtc@51 {
+		compatible = "pcf2127-rtc";
+		reg = <0x51>;
+	};
+};
+
+&i2c2 {
+	status = "okay";
+};
+
+&i2c3 {
+	status = "okay";
+};
+
+&i2c4 {
+	status = "okay";
+};
+
+&i2c5 {
+	status = "okay";
+};
+
+&i2c6 {
+	status = "okay";
+};
+
+&i2c7 {
+	status = "okay";
+};
+
+&lpuart0 {
+	status = "okay";
+};
+
+&sata {
+	status = "okay";
+};
+
+&serial0 {
+	status = "okay";
+};
+
+&serial1 {
+	status = "okay";
+};
+
+&usb1 {
+	status = "okay";
+};
+
+&usb2 {
+	status = "okay";
+};
+
+&enetc1 {
+	status = "okay";
+	phy-mode = "rgmii";
+	phy-handle = <&qds_phy0>;
+};
+
+&mdio0 {
+	status = "okay";
+};