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, 132 insertions, 0 deletions

diff --git a/kernel/arch/arm/boot/dts/integrator.dtsi b/kernel/arch/arm/boot/dts/integrator.dtsi
new file mode 100644
index 000000000..28e38f8c6
--- /dev/null
+++ b/kernel/arch/arm/boot/dts/integrator.dtsi
@@ -0,0 +1,132 @@
+/*
+ * SoC core Device Tree for the ARM Integrator platforms
+ */
+
+/include/ "skeleton.dtsi"
+
+/ {
+	core-module@10000000 {
+		compatible = "arm,core-module-integrator", "syscon";
+		reg = <0x10000000 0x200>;
+
+		/* Use core module LED to indicate CPU load */
+		led@0c.0 {
+			compatible = "register-bit-led";
+			offset = <0x0c>;
+			mask = <0x01>;
+			label = "integrator:core_module";
+			linux,default-trigger = "cpu0";
+			default-state = "on";
+		};
+	};
+
+	ebi@12000000 {
+		compatible = "arm,external-bus-interface";
+		reg = <0x12000000 0x100>;
+	};
+
+	timer@13000000 {
+		reg = <0x13000000 0x100>;
+		interrupt-parent = <&pic>;
+		interrupts = <5>;
+	};
+
+	timer@13000100 {
+		reg = <0x13000100 0x100>;
+		interrupt-parent = <&pic>;
+		interrupts = <6>;
+	};
+
+	timer@13000200 {
+		reg = <0x13000200 0x100>;
+		interrupt-parent = <&pic>;
+		interrupts = <7>;
+	};
+
+	pic@14000000 {
+		compatible = "arm,versatile-fpga-irq";
+		#interrupt-cells = <1>;
+		interrupt-controller;
+		reg = <0x14000000 0x100>;
+		clear-mask = <0xffffffff>;
+	};
+
+	flash@24000000 {
+		compatible = "cfi-flash";
+		reg = <0x24000000 0x02000000>;
+	};
+
+	fpga {
+		compatible = "arm,amba-bus", "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+		interrupt-parent = <&pic>;
+
+		/*
+		 * These PrimeCells are in the same locations and using the
+		 * same interrupts in all Integrators, however the silicon
+		 * version deployed is different.
+		 */
+		rtc@15000000 {
+			reg = <0x15000000 0x1000>;
+			interrupts = <8>;
+		};
+
+		uart@16000000 {
+			reg = <0x16000000 0x1000>;
+			interrupts = <1>;
+		};
+
+		uart@17000000 {
+			reg = <0x17000000 0x1000>;
+			interrupts = <2>;
+		};
+
+		kmi@18000000 {
+			reg = <0x18000000 0x1000>;
+			interrupts = <3>;
+		};
+
+		kmi@19000000 {
+			reg = <0x19000000 0x1000>;
+			interrupts = <4>;
+		};
+
+		syscon {
+			/* Debug registers mapped as syscon */
+			compatible = "syscon";
+			reg = <0x1a000000 0x10>;
+
+			led@04.0 {
+				compatible = "register-bit-led";
+				offset = <0x04>;
+				mask = <0x01>;
+				label = "integrator:green0";
+				linux,default-trigger = "heartbeat";
+				default-state = "on";
+			};
+			led@04.1 {
+				compatible = "register-bit-led";
+				offset = <0x04>;
+				mask = <0x02>;
+				label = "integrator:yellow";
+				default-state = "off";
+			};
+			led@04.2 {
+				compatible = "register-bit-led";
+				offset = <0x04>;
+				mask = <0x04>;
+				label = "integrator:red";
+				default-state = "off";
+			};
+			led@04.3 {
+				compatible = "register-bit-led";
+				offset = <0x04>;
+				mask = <0x08>;
+				label = "integrator:green1";
+				default-state = "off";
+			};
+		};
+	};
+};