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, 46 insertions, 0 deletions

diff --git a/kernel/Documentation/devicetree/bindings/watchdog/marvel.txt b/kernel/Documentation/devicetree/bindings/watchdog/marvel.txt
new file mode 100644
index 000000000..858ed9221
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/watchdog/marvel.txt
@@ -0,0 +1,46 @@
+* Marvell Orion Watchdog Time
+
+Required Properties:
+
+- Compatibility : "marvell,orion-wdt"
+		  "marvell,armada-370-wdt"
+		  "marvell,armada-xp-wdt"
+		  "marvell,armada-375-wdt"
+		  "marvell,armada-380-wdt"
+
+- reg		: Should contain two entries: first one with the
+		  timer control address, second one with the
+		  rstout enable address.
+
+For "marvell,armada-375-wdt" and "marvell,armada-380-wdt":
+
+- reg		: A third entry is mandatory and should contain the
+                  shared mask/unmask RSTOUT address.
+
+Clocks required for compatibles = "marvell,orion-wdt",
+				  "marvell,armada-370-wdt":
+- clocks : Must contain a single entry describing the clock input
+
+Clocks required for compatibles = "marvell,armada-xp-wdt"
+				  "marvell,armada-375-wdt"
+				  "marvell,armada-380-wdt":
+- clocks : Must contain an entry for each entry in clock-names.
+- clock-names : Must include the following entries:
+  "nbclk" (L2/coherency fabric clock),
+  "fixed" (Reference 25 MHz fixed-clock).
+
+Optional properties:
+
+- interrupts	: Contains the IRQ for watchdog expiration
+- timeout-sec	: Contains the watchdog timeout in seconds
+
+Example:
+
+	wdt@20300 {
+		compatible = "marvell,orion-wdt";
+		reg = <0x20300 0x28>, <0x20108 0x4>;
+		interrupts = <3>;
+		timeout-sec = <10>;
+		status = "okay";
+		clocks = <&gate_clk 7>;
+	};