arm: zynq: add support for the zybo z7 board

The board is manufactured by Digilent
Main features:
- Soc: XC7Z010 (Z7-10) or XC7Z020 (Z7-20)
- RAM: 1 GB DDR3L
- FLASH: 16 MB QSPI
- 1 Gbps Ethernet
- USB 2.0
- microSD slot
- Pcam camera connector
- HDMI Tx and Rx
- Audio codec: stereo out, stereo in, mic
- 5 (Z7-10) or 6 (Z7-20) Pmod ports
- 6 push-buttons, 4 switches, 5 LEDs
- 1 (Z7-10) or 2 (Z7-20) RGB LEDs

Signed-off-by: Luis Araneda <luaraneda@gmail.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

2 files changed, 83 insertions, 1 deletions

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 89032bb545..797e5756a3 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -149,7 +149,8 @@ dtb-$(CONFIG_ARCH_ZYNQ) += \
 	zynq-zc770-xm013.dtb \
 	zynq-zed.dtb \
 	zynq-zturn.dtb \
-	zynq-zybo.dtb
+	zynq-zybo.dtb \
+	zynq-zybo-z7.dtb
 dtb-$(CONFIG_ARCH_ZYNQMP) += \
 	zynqmp-mini-emmc0.dtb			\
 	zynqmp-mini-emmc1.dtb			\
diff --git a/arch/arm/dts/zynq-zybo-z7.dts b/arch/arm/dts/zynq-zybo-z7.dts
new file mode 100644
index 0000000000..3f8a3bfa0f
--- /dev/null
+++ b/arch/arm/dts/zynq-zybo-z7.dts
@@ -0,0 +1,81 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ *  Copyright (C) 2011 - 2015 Xilinx
+ *  Copyright (C) 2012 National Instruments Corp.
+ */
+/dts-v1/;
+#include "zynq-7000.dtsi"
+#include <dt-bindings/gpio/gpio.h>
+
+/ {
+	model = "Digilent Zybo Z7 board";
+	compatible = "digilent,zynq-zybo-z7", "xlnx,zynq-7000";
+
+	aliases {
+		ethernet0 = &gem0;
+		serial0 = &uart1;
+		spi0 = &qspi;
+		mmc0 = &sdhci0;
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x40000000>;
+	};
+
+	chosen {
+		bootargs = "";
+		stdout-path = "serial0:115200n8";
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+
+		ld4 {
+			label = "zynq-zybo-z7:green:ld4";
+			gpios = <&gpio0 7 GPIO_ACTIVE_HIGH>;
+		};
+	};
+
+	usb_phy0: phy0 {
+		#phy-cells = <0>;
+		compatible = "usb-nop-xceiv";
+		reset-gpios = <&gpio0 46 GPIO_ACTIVE_LOW>;
+	};
+};
+
+&clkc {
+	ps-clk-frequency = <33333333>;
+};
+
+&gem0 {
+	status = "okay";
+	phy-mode = "rgmii-id";
+	phy-handle = <&ethernet_phy>;
+
+	ethernet_phy: ethernet-phy@0 {
+		reg = <0>;
+		device_type = "ethernet-phy";
+	};
+};
+
+&qspi {
+	u-boot,dm-pre-reloc;
+	status = "okay";
+};
+
+&sdhci0 {
+	u-boot,dm-pre-reloc;
+	status = "okay";
+};
+
+&uart1 {
+	u-boot,dm-pre-reloc;
+	status = "okay";
+};
+
+&usb0 {
+	status = "okay";
+	dr_mode = "host";
+	usb-phy = <&usb_phy0>;
+};