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, 135 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-s3c24xx/s3c244x.c b/kernel/arch/arm/mach-s3c24xx/s3c244x.c
new file mode 100644
index 000000000..b14119585
--- /dev/null
+++ b/kernel/arch/arm/mach-s3c24xx/s3c244x.c
@@ -0,0 +1,135 @@
+/* linux/arch/arm/plat-s3c24xx/s3c244x.c
+ *
+ * Copyright (c) 2004-2006 Simtec Electronics
+ *   Ben Dooks <ben@simtec.co.uk>
+ *
+ * Samsung S3C2440 and S3C2442 Mobile CPU support (not S3C2443)
+ *
+ * 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/reboot.h>
+#include <linux/device.h>
+#include <linux/syscore_ops.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+
+#include <asm/system_misc.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <mach/hardware.h>
+#include <asm/irq.h>
+
+#include <plat/cpu-freq.h>
+
+#include <mach/regs-clock.h>
+#include <mach/regs-gpio.h>
+
+#include <plat/devs.h>
+#include <plat/cpu.h>
+#include <plat/pm.h>
+#include <plat/nand-core.h>
+
+#include "common.h"
+#include "regs-dsc.h"
+
+static struct map_desc s3c244x_iodesc[] __initdata = {
+	IODESC_ENT(CLKPWR),
+	IODESC_ENT(TIMER),
+	IODESC_ENT(WATCHDOG),
+};
+
+/* uart initialisation */
+
+void __init s3c244x_init_uarts(struct s3c2410_uartcfg *cfg, int no)
+{
+	s3c24xx_init_uartdevs("s3c2440-uart", s3c2410_uart_resources, cfg, no);
+}
+
+void __init s3c244x_map_io(void)
+{
+	/* register our io-tables */
+
+	iotable_init(s3c244x_iodesc, ARRAY_SIZE(s3c244x_iodesc));
+
+	/* rename any peripherals used differing from the s3c2410 */
+
+	s3c_device_sdi.name  = "s3c2440-sdi";
+	s3c_device_i2c0.name  = "s3c2440-i2c";
+	s3c_nand_setname("s3c2440-nand");
+	s3c_device_ts.name = "s3c2440-ts";
+	s3c_device_usbgadget.name = "s3c2440-usbgadget";
+	s3c2410_device_dclk.name = "s3c2440-dclk";
+}
+
+/* Since the S3C2442 and S3C2440 share items, put both subsystems here */
+
+struct bus_type s3c2440_subsys = {
+	.name		= "s3c2440-core",
+	.dev_name	= "s3c2440-core",
+};
+
+struct bus_type s3c2442_subsys = {
+	.name		= "s3c2442-core",
+	.dev_name	= "s3c2442-core",
+};
+
+/* need to register the subsystem before we actually register the device, and
+ * we also need to ensure that it has been initialised before any of the
+ * drivers even try to use it (even if not on an s3c2440 based system)
+ * as a driver which may support both 2410 and 2440 may try and use it.
+*/
+
+static int __init s3c2440_core_init(void)
+{
+	return subsys_system_register(&s3c2440_subsys, NULL);
+}
+
+core_initcall(s3c2440_core_init);
+
+static int __init s3c2442_core_init(void)
+{
+	return subsys_system_register(&s3c2442_subsys, NULL);
+}
+
+core_initcall(s3c2442_core_init);
+
+
+#ifdef CONFIG_PM_SLEEP
+static struct sleep_save s3c244x_sleep[] = {
+	SAVE_ITEM(S3C2440_DSC0),
+	SAVE_ITEM(S3C2440_DSC1),
+	SAVE_ITEM(S3C2440_GPJDAT),
+	SAVE_ITEM(S3C2440_GPJCON),
+	SAVE_ITEM(S3C2440_GPJUP)
+};
+
+static int s3c244x_suspend(void)
+{
+	s3c_pm_do_save(s3c244x_sleep, ARRAY_SIZE(s3c244x_sleep));
+	return 0;
+}
+
+static void s3c244x_resume(void)
+{
+	s3c_pm_do_restore(s3c244x_sleep, ARRAY_SIZE(s3c244x_sleep));
+}
+
+struct syscore_ops s3c244x_pm_syscore_ops = {
+	.suspend	= s3c244x_suspend,
+	.resume		= s3c244x_resume,
+};
+#endif