Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 181 insertions, 0 deletions

diff --git a/kernel/arch/arm/boot/dts/kirkwood-mv88f6281gtw-ge.dts b/kernel/arch/arm/boot/dts/kirkwood-mv88f6281gtw-ge.dts
new file mode 100644
index 000000000..f82827d6f
--- /dev/null
+++ b/kernel/arch/arm/boot/dts/kirkwood-mv88f6281gtw-ge.dts
@@ -0,0 +1,181 @@
+/*
+ * Marvell 88F6281 GTW GE Board
+ *
+ * Lennert Buytenhek <buytenh@marvell.com>
+ * Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ *
+ * This file contains the definitions that are common between the 6281
+ * and 6282 variants of the Marvell Kirkwood Development Board.
+ */
+
+/dts-v1/;
+
+#include "kirkwood.dtsi"
+#include "kirkwood-6281.dtsi"
+
+/ {
+	model = "Marvell 88F6281 GTW GE Board";
+	compatible = "marvell,mv88f6281gtw-ge", "marvell,kirkwood-88f6281", "marvell,kirkwood";
+
+	memory {
+		device_type = "memory";
+		reg = <0x00000000 0x20000000>; /* 512 MB */
+	};
+
+	chosen {
+		bootargs = "console=ttyS0,115200n8 earlyprintk";
+		stdout-path = &uart0;
+	};
+
+	mbus {
+		pcie-controller {
+			status = "okay";
+
+			pcie@1,0 {
+				status = "okay";
+			};
+		};
+        };
+
+	ocp@f1000000 {
+		pin-controller@10000 {
+			pmx_usb_led: pmx-usb-led {
+				marvell,pins = "mpp12";
+				marvell,function = "gpo";
+			};
+
+			pmx_leds: pmx-leds {
+				marvell,pins = "mpp20", "mpp21";
+				marvell,function = "gpio";
+			};
+
+			pmx_keys: pmx-keys {
+				marvell,pins = "mpp46", "mpp47";
+				marvell,function = "gpio";
+			};
+		};
+
+		spi@10600 {
+			status = "okay";
+
+			flash@0 {
+				#address-cells = <1>;
+				#size-cells = <1>;
+				compatible = "mxicy,mx25l12805d";
+				reg = <0>;
+				spi-max-frequency = <50000000>;
+				mode = <0>;
+			};
+		};
+
+		serial@12000 {
+			status = "okay";
+		};
+
+		ehci@50000 {
+			status = "okay";
+		};
+	};
+
+	gpio-leds {
+		compatible = "gpio-leds";
+		pinctrl-0 = <&pmx_leds &pmx_usb_led>;
+		pinctrl-names = "default";
+
+		green-status {
+			label = "gtw:green:Status";
+			gpios = <&gpio0 20 GPIO_ACTIVE_HIGH>;
+		};
+
+		red-status {
+			label = "gtw:red:Status";
+			gpios = <&gpio0 21 GPIO_ACTIVE_HIGH>;
+		};
+
+		green-usb {
+			label = "gtw:green:USB";
+			gpios = <&gpio0 12 GPIO_ACTIVE_HIGH>;
+		};
+	};
+
+	gpio_keys {
+		compatible = "gpio-keys";
+		#address-cells = <1>;
+		#size-cells = <0>;
+		pinctrl-0 = <&pmx_keys>;
+		pinctrl-names = "default";
+
+		button@1 {
+			label = "SWR Button";
+			linux,code = <KEY_RESTART>;
+			gpios = <&gpio1 15 GPIO_ACTIVE_LOW>;
+		};
+		button@2 {
+			label = "WPS Button";
+			linux,code = <KEY_WPS_BUTTON>;
+			gpios = <&gpio1 14 GPIO_ACTIVE_LOW>;
+		};
+	};
+
+	dsa@0 {
+		compatible = "marvell,dsa";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		dsa,ethernet = <&eth0port>;
+		dsa,mii-bus = <&mdio>;
+
+		switch@0 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0 0>;	/* MDIO address 0, switch 0 in tree */
+
+			port@0 {
+				reg = <0>;
+				label = "lan1";
+			};
+
+			port@1 {
+				reg = <1>;
+				label = "lan2";
+			};
+
+			port@2 {
+				reg = <2>;
+				label = "lan3";
+			};
+
+			port@3 {
+				reg = <3>;
+				label = "lan4";
+			};
+
+			port@4 {
+				reg = <4>;
+				label = "wan";
+			};
+
+			port@5 {
+				reg = <5>;
+				label = "cpu";
+			};
+		};
+	};
+};
+
+&mdio {
+	status = "okay";
+};
+
+&eth0 {
+	status = "okay";
+
+	ethernet0-port@0 {
+		speed = <1000>;
+		duplex = <1>;
+	};
+};