armv8: lx2162aqds: Add support for LX2162AQDS platform

This patch add base support for LX2162AQDS board.
LX2162AQDS board supports LX2162A family SoCs.
This patch add basic support of platform.

Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Zhao Qiang <qiang.zhao@nxp.com>
Signed-off-by: hui.song <hui.song_1@nxp.com>
Signed-off-by: Manish Tomar <manish.tomar@nxp.com>
Signed-off-by: Vikas Singh <vikas.singh@nxp.com>
Signed-off-by: Meenakshi Aggarwal <meenakshi.aggarwal@nxp.com>
[Rebased]
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/arch/arm/dts/fsl-lx2160a-qds.dtsi b/arch/arm/dts/fsl-lx2160a-qds.dtsi
index 96c9800..288607c 100644
--- a/arch/arm/dts/fsl-lx2160a-qds.dtsi
+++ b/arch/arm/dts/fsl-lx2160a-qds.dtsi
@@ -2,12 +2,18 @@
 /*
  * NXP LX2160AQDS common device tree source
  *
- * Copyright 2018-2019 NXP
+ * Copyright 2018-2020 NXP
  *
  */
 
 #include "fsl-lx2160a.dtsi"
 
+/ {
+	aliases {
+		spi0 = &fspi;
+	};
+};
+
 &dpmac17 {
 	status = "okay";
 	phy-handle = <&rgmii_phy1>;
@@ -251,6 +257,20 @@
 	};
 };
 
+&fspi {
+	status = "okay";
+
+	mt35xu512aba0: 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>;
+	};
+};
+
 &sata0 {
 	status = "okay";
 };