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, 97 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-s3c64xx/mach-smdk6400.c b/kernel/arch/arm/mach-s3c64xx/mach-smdk6400.c
new file mode 100644
index 000000000..6f425126a
--- /dev/null
+++ b/kernel/arch/arm/mach-s3c64xx/mach-smdk6400.c
@@ -0,0 +1,97 @@
+/* linux/arch/arm/mach-s3c64xx/mach-smdk6400.c
+ *
+ * Copyright 2008 Simtec Electronics
+ *	Ben Dooks <ben@simtec.co.uk>
+ *	http://armlinux.simtec.co.uk/
+ *
+ * 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
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/list.h>
+#include <linux/timer.h>
+#include <linux/init.h>
+#include <linux/serial_core.h>
+#include <linux/serial_s3c.h>
+#include <linux/platform_device.h>
+#include <linux/i2c.h>
+#include <linux/io.h>
+
+#include <asm/mach-types.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <mach/hardware.h>
+#include <mach/map.h>
+
+#include <plat/devs.h>
+#include <plat/cpu.h>
+#include <linux/platform_data/i2c-s3c2410.h>
+#include <mach/gpio-samsung.h>
+#include <plat/samsung-time.h>
+
+#include "common.h"
+
+#define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
+#define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
+#define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
+
+static struct s3c2410_uartcfg smdk6400_uartcfgs[] __initdata = {
+	[0] = {
+		.hwport	     = 0,
+		.flags	     = 0,
+		.ucon	     = 0x3c5,
+		.ulcon	     = 0x03,
+		.ufcon	     = 0x51,
+	},
+	[1] = {
+		.hwport	     = 1,
+		.flags	     = 0,
+		.ucon	     = 0x3c5,
+		.ulcon	     = 0x03,
+		.ufcon	     = 0x51,
+	},
+};
+
+static struct map_desc smdk6400_iodesc[] = {};
+
+static void __init smdk6400_map_io(void)
+{
+	s3c64xx_init_io(smdk6400_iodesc, ARRAY_SIZE(smdk6400_iodesc));
+	s3c64xx_set_xtal_freq(12000000);
+	s3c24xx_init_uarts(smdk6400_uartcfgs, ARRAY_SIZE(smdk6400_uartcfgs));
+	samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
+}
+
+static struct platform_device *smdk6400_devices[] __initdata = {
+	&s3c_device_hsmmc1,
+	&s3c_device_i2c0,
+};
+
+static struct i2c_board_info i2c_devs[] __initdata = {
+	{ I2C_BOARD_INFO("wm8753", 0x1A), },
+	{ I2C_BOARD_INFO("24c08", 0x50), },
+};
+
+static void __init smdk6400_machine_init(void)
+{
+	i2c_register_board_info(0, i2c_devs, ARRAY_SIZE(i2c_devs));
+	platform_add_devices(smdk6400_devices, ARRAY_SIZE(smdk6400_devices));
+}
+
+MACHINE_START(SMDK6400, "SMDK6400")
+	/* Maintainer: Ben Dooks <ben-linux@fluff.org> */
+	.atag_offset	= 0x100,
+
+	.init_irq	= s3c6400_init_irq,
+	.map_io		= smdk6400_map_io,
+	.init_machine	= smdk6400_machine_init,
+	.init_time	= samsung_timer_init,
+	.restart	= s3c64xx_restart,
+MACHINE_END