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, 210 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-s3c24xx/common-smdk.c b/kernel/arch/arm/mach-s3c24xx/common-smdk.c
new file mode 100644
index 000000000..e9fbcc91c
--- /dev/null
+++ b/kernel/arch/arm/mach-s3c24xx/common-smdk.c
@@ -0,0 +1,210 @@
+/* linux/arch/arm/plat-s3c24xx/common-smdk.c
+ *
+ * Copyright (c) 2006 Simtec Electronics
+ *	Ben Dooks <ben@simtec.co.uk>
+ *
+ * Common code for SMDK2410 and SMDK2440 boards
+ *
+ * http://www.fluff.org/ben/smdk2440/
+ *
+ * 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/gpio.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/nand.h>
+#include <linux/mtd/nand_ecc.h>
+#include <linux/mtd/partitions.h>
+#include <linux/io.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <asm/mach-types.h>
+#include <mach/hardware.h>
+#include <asm/irq.h>
+
+#include <mach/regs-gpio.h>
+#include <mach/gpio-samsung.h>
+#include <linux/platform_data/leds-s3c24xx.h>
+#include <linux/platform_data/mtd-nand-s3c2410.h>
+
+#include <plat/gpio-cfg.h>
+#include <plat/devs.h>
+#include <plat/pm.h>
+
+#include "common-smdk.h"
+
+/* LED devices */
+
+static struct s3c24xx_led_platdata smdk_pdata_led4 = {
+	.gpio		= S3C2410_GPF(4),
+	.flags		= S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
+	.name		= "led4",
+	.def_trigger	= "timer",
+};
+
+static struct s3c24xx_led_platdata smdk_pdata_led5 = {
+	.gpio		= S3C2410_GPF(5),
+	.flags		= S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
+	.name		= "led5",
+	.def_trigger	= "nand-disk",
+};
+
+static struct s3c24xx_led_platdata smdk_pdata_led6 = {
+	.gpio		= S3C2410_GPF(6),
+	.flags		= S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
+	.name		= "led6",
+};
+
+static struct s3c24xx_led_platdata smdk_pdata_led7 = {
+	.gpio		= S3C2410_GPF(7),
+	.flags		= S3C24XX_LEDF_ACTLOW | S3C24XX_LEDF_TRISTATE,
+	.name		= "led7",
+};
+
+static struct platform_device smdk_led4 = {
+	.name		= "s3c24xx_led",
+	.id		= 0,
+	.dev		= {
+		.platform_data = &smdk_pdata_led4,
+	},
+};
+
+static struct platform_device smdk_led5 = {
+	.name		= "s3c24xx_led",
+	.id		= 1,
+	.dev		= {
+		.platform_data = &smdk_pdata_led5,
+	},
+};
+
+static struct platform_device smdk_led6 = {
+	.name		= "s3c24xx_led",
+	.id		= 2,
+	.dev		= {
+		.platform_data = &smdk_pdata_led6,
+	},
+};
+
+static struct platform_device smdk_led7 = {
+	.name		= "s3c24xx_led",
+	.id		= 3,
+	.dev		= {
+		.platform_data = &smdk_pdata_led7,
+	},
+};
+
+/* NAND parititon from 2.4.18-swl5 */
+
+static struct mtd_partition smdk_default_nand_part[] = {
+	[0] = {
+		.name	= "Boot Agent",
+		.size	= SZ_16K,
+		.offset	= 0,
+	},
+	[1] = {
+		.name	= "S3C2410 flash partition 1",
+		.offset = 0,
+		.size	= SZ_2M,
+	},
+	[2] = {
+		.name	= "S3C2410 flash partition 2",
+		.offset = SZ_4M,
+		.size	= SZ_4M,
+	},
+	[3] = {
+		.name	= "S3C2410 flash partition 3",
+		.offset	= SZ_8M,
+		.size	= SZ_2M,
+	},
+	[4] = {
+		.name	= "S3C2410 flash partition 4",
+		.offset = SZ_1M * 10,
+		.size	= SZ_4M,
+	},
+	[5] = {
+		.name	= "S3C2410 flash partition 5",
+		.offset	= SZ_1M * 14,
+		.size	= SZ_1M * 10,
+	},
+	[6] = {
+		.name	= "S3C2410 flash partition 6",
+		.offset	= SZ_1M * 24,
+		.size	= SZ_1M * 24,
+	},
+	[7] = {
+		.name	= "S3C2410 flash partition 7",
+		.offset = SZ_1M * 48,
+		.size	= MTDPART_SIZ_FULL,
+	}
+};
+
+static struct s3c2410_nand_set smdk_nand_sets[] = {
+	[0] = {
+		.name		= "NAND",
+		.nr_chips	= 1,
+		.nr_partitions	= ARRAY_SIZE(smdk_default_nand_part),
+		.partitions	= smdk_default_nand_part,
+	},
+};
+
+/* choose a set of timings which should suit most 512Mbit
+ * chips and beyond.
+*/
+
+static struct s3c2410_platform_nand smdk_nand_info = {
+	.tacls		= 20,
+	.twrph0		= 60,
+	.twrph1		= 20,
+	.nr_sets	= ARRAY_SIZE(smdk_nand_sets),
+	.sets		= smdk_nand_sets,
+};
+
+/* devices we initialise */
+
+static struct platform_device __initdata *smdk_devs[] = {
+	&s3c_device_nand,
+	&smdk_led4,
+	&smdk_led5,
+	&smdk_led6,
+	&smdk_led7,
+};
+
+static const struct gpio smdk_led_gpios[] = {
+	{ S3C2410_GPF(4), GPIOF_OUT_INIT_HIGH, NULL },
+	{ S3C2410_GPF(5), GPIOF_OUT_INIT_HIGH, NULL },
+	{ S3C2410_GPF(6), GPIOF_OUT_INIT_HIGH, NULL },
+	{ S3C2410_GPF(7), GPIOF_OUT_INIT_HIGH, NULL },
+};
+
+void __init smdk_machine_init(void)
+{
+	/* Configure the LEDs (even if we have no LED support)*/
+
+	int ret = gpio_request_array(smdk_led_gpios,
+				     ARRAY_SIZE(smdk_led_gpios));
+	if (!WARN_ON(ret < 0))
+		gpio_free_array(smdk_led_gpios, ARRAY_SIZE(smdk_led_gpios));
+
+	if (machine_is_smdk2443())
+		smdk_nand_info.twrph0 = 50;
+
+	s3c_nand_set_platdata(&smdk_nand_info);
+
+	platform_add_devices(smdk_devs, ARRAY_SIZE(smdk_devs));
+
+	s3c_pm_init();
+}