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, 94 insertions, 0 deletions

diff --git a/kernel/Documentation/devicetree/bindings/clock/imx28-clock.txt b/kernel/Documentation/devicetree/bindings/clock/imx28-clock.txt
new file mode 100644
index 000000000..e6587af62
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/clock/imx28-clock.txt
@@ -0,0 +1,94 @@
+* Clock bindings for Freescale i.MX28
+
+Required properties:
+- compatible: Should be "fsl,imx28-clkctrl"
+- reg: Address and length of the register set
+- #clock-cells: Should be <1>
+
+The clock consumer should specify the desired clock by having the clock
+ID in its "clocks" phandle cell.  The following is a full list of i.MX28
+clocks and IDs.
+
+	Clock		ID
+	------------------
+	ref_xtal	0
+	pll0		1
+	pll1		2
+	pll2		3
+	ref_cpu		4
+	ref_emi		5
+	ref_io0		6
+	ref_io1		7
+	ref_pix		8
+	ref_hsadc	9
+	ref_gpmi	10
+	saif0_sel	11
+	saif1_sel	12
+	gpmi_sel	13
+	ssp0_sel	14
+	ssp1_sel	15
+	ssp2_sel	16
+	ssp3_sel	17
+	emi_sel		18
+	etm_sel		19
+	lcdif_sel	20
+	cpu		21
+	ptp_sel		22
+	cpu_pll		23
+	cpu_xtal	24
+	hbus		25
+	xbus		26
+	ssp0_div	27
+	ssp1_div	28
+	ssp2_div	29
+	ssp3_div	30
+	gpmi_div	31
+	emi_pll		32
+	emi_xtal	33
+	lcdif_div	34
+	etm_div		35
+	ptp		36
+	saif0_div	37
+	saif1_div	38
+	clk32k_div	39
+	rtc		40
+	lradc		41
+	spdif_div	42
+	clk32k		43
+	pwm		44
+	uart		45
+	ssp0		46
+	ssp1		47
+	ssp2		48
+	ssp3		49
+	gpmi		50
+	spdif		51
+	emi		52
+	saif0		53
+	saif1		54
+	lcdif		55
+	etm		56
+	fec		57
+	can0		58
+	can1		59
+	usb0		60
+	usb1		61
+	usb0_phy	62
+	usb1_phy	63
+	enet_out	64
+
+Examples:
+
+clks: clkctrl@80040000 {
+	compatible = "fsl,imx28-clkctrl";
+	reg = <0x80040000 0x2000>;
+	#clock-cells = <1>;
+};
+
+auart0: serial@8006a000 {
+	compatible = "fsl,imx28-auart", "fsl,imx23-auart";
+	reg = <0x8006a000 0x2000>;
+	interrupts = <112 70 71>;
+	clocks = <&clks 45>;
+	status = "disabled";
+};