ARM: kirkwood: Add device-tree for d2net_v2 & net2big_v2

Import the dts files from Linux 4.17 and enable CONFIG_OF_CONTROL.

Signed-off-by: Chris Packham <judge.packham@gmail.com>
Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/arch/arm/dts/kirkwood-net2big.dts b/arch/arm/dts/kirkwood-net2big.dts
new file mode 100644
index 0000000..3e3ac28
--- /dev/null
+++ b/arch/arm/dts/kirkwood-net2big.dts
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree file for LaCie 2Big Network v2
+ *
+ * Copyright (C) 2014
+ *
+ * Andrew Lunn <andrew@lunn.ch>
+ *
+ * Based on netxbig_v2-setup.c,
+ * Copyright (C) 2010 Simon Guinot <sguinot@lacie.com>
+ *
+*/
+
+/dts-v1/;
+
+#include "kirkwood.dtsi"
+#include "kirkwood-6281.dtsi"
+#include "kirkwood-netxbig.dtsi"
+
+/ {
+	model = "LaCie 2Big Network v2";
+	compatible = "lacie,net2big_v2", "lacie,netxbig", "marvell,kirkwood-88f6281", "marvell,kirkwood";
+
+	memory {
+		device_type = "memory";
+		reg = <0x00000000 0x10000000>;
+	};
+
+	fan {
+		compatible = "gpio-fan";
+		alarm-gpios = <&gpio0 25 GPIO_ACTIVE_LOW>;
+	};
+};
+
+&regulators {
+	regulator@2 {
+		compatible = "regulator-fixed";
+		reg = <2>;
+		regulator-name = "hdd1power";
+		regulator-min-microvolt = <5000000>;
+		regulator-max-microvolt = <5000000>;
+		enable-active-high;
+		regulator-always-on;
+		regulator-boot-on;
+		gpio = <&gpio0 17 GPIO_ACTIVE_HIGH>;
+	};
+
+	clocks {
+	       g762_clk: g762-oscillator {
+			 compatible = "fixed-clock";
+			 #clock-cells = <0>;
+			 clock-frequency = <32768>;
+	       };
+	};
+};
+
+&i2c0 {
+	g762@3e {
+		compatible = "gmt,g762";
+		reg = <0x3e>;
+		clocks = <&g762_clk>;
+	};
+};