ARM: zynq: Add support for Arty Z7 board

Board has eth, usb, mmc, qspi, uart and
512MB memory.

Signed-off-by: Michal Simek <[email protected]>

arch/arm/boot/dts/Makefile

@@ -727,6 +727,7 @@ dtb-$(CONFIG_ARCH_VT8500) += \
 dtb-$(CONFIG_ARCH_ZYNQ) += \
 	zynq-afx-nand.dtb \
 	zynq-afx-nor.dtb \
+	zynq-artyz7.dtb \
 	zynq-cc108.dtb \
 	zynq-parallella.dtb \
 	zynq-zc702.dtb \

arch/arm/boot/dts/zynq-artyz7.dts

@@ -0,0 +1,72 @@
+/*
+ * Digilent ARTY Z7 board DTS
+ *
+ *  Copyright (C) 2016 Digilent
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+/dts-v1/;
+#include "zynq-7000.dtsi"
+
+/ {
+	model = "Zynq ARTY Z7 Development Board";
+	compatible = "digilent,zynq-artyz7", "xlnx,zynq-7000";
+
+	aliases {
+		ethernet0 = &gem0;
+		serial0 = &uart0;
+		spi0 = &qspi;
+		mmc0 = &sdhci0;
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x0 0x20000000>;
+	};
+
+	chosen {
+		bootargs = "";
+		stdout-path = "serial0:115200n8";
+	};
+
+	usb_phy0: phy0 {
+		compatible = "usb-nop-xceiv";
+		#phy-cells = <0>;
+		reset-gpios = <&gpio0 46 1>;
+	};
+};
+
+&clkc {
+	ps-clk-frequency = <50000000>;
+};
+
+&gem0 {
+	status = "okay";
+	phy-mode = "rgmii-id";
+	phy-handle = <&ethernet_phy>;
+
+	ethernet_phy: ethernet-phy@0 { /* rtl8211e-vl */
+		reg = <1>;
+	};
+};
+
+&qspi {
+	u-boot,dm-pre-reloc;
+	status = "okay";
+};
+
+&sdhci0 {
+	u-boot,dm-pre-reloc;
+	status = "okay";
+};
+
+&uart0 {
+	u-boot,dm-pre-reloc;
+	status = "okay";
+};
+
+&usb0 {
+	status = "okay";
+	dr_mode = "host";
+	usb-phy = <&usb_phy0>;
+};