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, 22 insertions, 0 deletions

diff --git a/kernel/Documentation/devicetree/bindings/spi/brcm,bcm2835-spi.txt b/kernel/Documentation/devicetree/bindings/spi/brcm,bcm2835-spi.txt
new file mode 100644
index 000000000..f11f295c8
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/spi/brcm,bcm2835-spi.txt
@@ -0,0 +1,22 @@
+Broadcom BCM2835 SPI0 controller
+
+The BCM2835 contains two forms of SPI master controller, one known simply as
+SPI0, and the other known as the "Universal SPI Master"; part of the
+auxiliary block. This binding applies to the SPI0 controller.
+
+Required properties:
+- compatible: Should be "brcm,bcm2835-spi".
+- reg: Should contain register location and length.
+- interrupts: Should contain interrupt.
+- clocks: The clock feeding the SPI controller.
+
+Example:
+
+spi@20204000 {
+	compatible = "brcm,bcm2835-spi";
+	reg = <0x7e204000 0x1000>;
+	interrupts = <2 22>;
+	clocks = <&clk_spi>;
+	#address-cells = <1>;
+	#size-cells = <0>;
+};