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, 82 insertions, 0 deletions

diff --git a/kernel/arch/arm/boot/dts/stih41x-b2020.dtsi b/kernel/arch/arm/boot/dts/stih41x-b2020.dtsi
new file mode 100644
index 000000000..487d7d87d
--- /dev/null
+++ b/kernel/arch/arm/boot/dts/stih41x-b2020.dtsi
@@ -0,0 +1,82 @@
+/*
+ * Copyright (C) 2013 STMicroelectronics (R&D) Limited.
+ * Author: Srinivas Kandagatla <srinivas.kandagatla@st.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * publishhed by the Free Software Foundation.
+ */
+#include "stih41x-b2020x.dtsi"
+/ {
+	memory{
+		device_type = "memory";
+		reg = <0x40000000 0x80000000>;
+	};
+
+	chosen {
+		bootargs = "console=ttyAS0,115200 clk_ignore_unused";
+		linux,stdout-path = &sbc_serial1;
+	};
+
+	aliases {
+		ttyAS0 = &sbc_serial1;
+		ethernet1 = &ethernet1;
+	};
+	soc {
+		sbc_serial1: serial@fe531000 {
+			status = "okay";
+		};
+
+		leds {
+			compatible	= "gpio-leds";
+			red {
+				#gpio-cells = <1>;
+				label	= "Front Panel LED";
+				gpios	= <&pio4 1>;
+				linux,default-trigger	= "heartbeat";
+			};
+			green {
+				gpios	= <&pio4 7>;
+				default-state = "off";
+			};
+		};
+
+		i2c@fed40000 {
+			status = "okay";
+		};
+
+		/* HDMI Tx I2C */
+		i2c@fed41000 {
+			/* HDMI V1.3a supports Standard mode only */
+			clock-frequency = <100000>;
+			i2c-min-scl-pulse-width-us = <0>;
+			i2c-min-sda-pulse-width-us = <5>;
+
+			status = "okay";
+		};
+
+		i2c@fe540000 {
+			status = "okay";
+		};
+
+		i2c@fe541000 {
+			status = "okay";
+		};
+
+		ethernet1: dwmac@fef08000 {
+			status			= "okay";
+			phy-mode		= "rgmii-id";
+			max-speed		= <1000>;
+			st,tx-retime-src	= "clk_125";
+			snps,reset-gpio 	= <&pio3 0>;
+			snps,reset-active-low;
+			snps,reset-delays-us 	= <0 10000 10000>;
+
+			pinctrl-0	= <&pinctrl_rgmii1>;
+		};
+
+		mmc0: sdhci@fe81e000 {
+			bus-width = <8>;
+		};
+	};
+};