arm: dts: zynq: Add digilent ZYBO board dts

It's a Zynq board similar in design to the currently supported ones.
512MB of RAM and UART1 is used.

Signed-off-by: Peter Crosthwaite <crosthwaite.peter@gmail.com>
Acked-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 52f8926..8977d4b 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -34,6 +34,7 @@
 dtb-$(CONFIG_ZYNQ) += zynq-zc702.dtb \
 	zynq-zc706.dtb \
 	zynq-zed.dtb \
+	zynq-zybo.dtb \
 	zynq-microzed.dtb \
 	zynq-zc770-xm010.dtb \
 	zynq-zc770-xm012.dtb \
diff --git a/arch/arm/dts/zynq-zybo.dts b/arch/arm/dts/zynq-zybo.dts
new file mode 100644
index 0000000..20e0386
--- /dev/null
+++ b/arch/arm/dts/zynq-zybo.dts
@@ -0,0 +1,23 @@
+/*
+ * Digilent ZYBO board DTS
+ *
+ * Copyright (C) 2013 Xilinx, Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+/dts-v1/;
+#include "zynq-7000.dtsi"
+
+/ {
+	model = "Zynq ZYBO Board";
+	compatible = "xlnx,zynq-zybo", "xlnx,zynq-7000";
+
+	aliases {
+		serial0 = &uart1;
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0 0x20000000>;
+	};
+};