arm: zynq: Add support for SYZYGY Hub board

Add the Zynq-based SYZYGY Hub board from Opal Kelly. The board
contains a Xilinx Zynq xc7z012s SoC, 1GB DDR3 RAM, and supports
booting from SD.

Signed-off-by: Tom McLeod <tom.mcleod@opalkelly.com>
Cc: Michal Simek <monstr@monstr.eu>
CC: Albert Aribaud <albert.u.boot@aribaud.net>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>

1 files changed, 72 insertions, 0 deletions

diff --git a/arch/arm/dts/zynq-syzygy-hub.dts b/arch/arm/dts/zynq-syzygy-hub.dts
new file mode 100644
index 0000000000..ebd08b4f40
--- /dev/null
+++ b/arch/arm/dts/zynq-syzygy-hub.dts
@@ -0,0 +1,72 @@
+/*
+ * SYZYGY Hub DTS
+ *
+ *  Copyright (C) 2011 - 2015 Xilinx
+ *  Copyright (C) 2017 Opal Kelly Inc.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+/dts-v1/;
+/include/ "zynq-7000.dtsi"
+
+/ {
+	model = "SYZYGY Hub";
+	compatible = "opalkelly,syzygy-hub", "xlnx,zynq-7000";
+
+	aliases {
+		ethernet0 = &gem0;
+		serial0 = &uart0;
+		mmc0 = &sdhci0;
+	};
+
+	memory@0 {
+		device_type = "memory";
+		reg = <0x0 0x40000000>;
+	};
+
+	chosen {
+		bootargs = "";
+		stdout-path = "serial0:115200n8";
+	};
+
+	usb_phy0: phy0 {
+		#phy-cells = <0>;
+		compatible = "usb-nop-xceiv";
+		reset-gpios = <&gpio0 47 1>;
+	};
+};
+
+&clkc {
+	ps-clk-frequency = <50000000>;
+};
+
+&gem0 {
+	status = "okay";
+	phy-mode = "rgmii-id";
+	phy-handle = <&ethernet_phy>;
+
+	ethernet_phy: ethernet-phy@0 {
+		reg = <0>;
+		device_type = "ethernet-phy";
+	};
+};
+
+&i2c1 {
+	status = "okay";
+};
+
+&sdhci0 {
+	u-boot,dm-pre-reloc;
+	status = "okay";
+};
+
+&uart0 {
+	u-boot,dm-pre-reloc;
+	status = "okay";
+};
+
+&usb0 {
+	status = "okay";
+	dr_mode = "otg";
+	usb-phy = <&usb_phy0>;
+};