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>

5 files changed, 486 insertions, 0 deletions

diff --git a/kernel/arch/sh/boards/mach-landisk/Makefile b/kernel/arch/sh/boards/mach-landisk/Makefile
new file mode 100644
index 000000000..a696b4277
--- /dev/null
+++ b/kernel/arch/sh/boards/mach-landisk/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for I-O DATA DEVICE, INC. "LANDISK Series"
+#
+
+obj-y	 := setup.o irq.o psw.o gio.o
diff --git a/kernel/arch/sh/boards/mach-landisk/gio.c b/kernel/arch/sh/boards/mach-landisk/gio.c
new file mode 100644
index 000000000..8132dff07
--- /dev/null
+++ b/kernel/arch/sh/boards/mach-landisk/gio.c
@@ -0,0 +1,170 @@
+/*
+ * arch/sh/boards/landisk/gio.c - driver for landisk
+ *
+ * This driver will also support the I-O DATA Device, Inc. LANDISK Board.
+ * LANDISK and USL-5P Button, LED and GIO driver drive function.
+ *
+ *   Copylight (C) 2006 kogiidena
+ *   Copylight (C) 2002 Atom Create Engineering Co., Ltd. *
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ */
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kdev_t.h>
+#include <linux/cdev.h>
+#include <linux/fs.h>
+#include <asm/io.h>
+#include <asm/uaccess.h>
+#include <mach-landisk/mach/gio.h>
+#include <mach-landisk/mach/iodata_landisk.h>
+
+#define DEVCOUNT                4
+#define GIO_MINOR	        2	/* GIO minor no. */
+
+static dev_t dev;
+static struct cdev *cdev_p;
+static int openCnt;
+
+static int gio_open(struct inode *inode, struct file *filp)
+{
+	int minor;
+	int ret = -ENOENT;
+
+	preempt_disable();
+	minor = MINOR(inode->i_rdev);
+	if (minor < DEVCOUNT) {
+		if (openCnt > 0) {
+			ret = -EALREADY;
+		} else {
+			openCnt++;
+			ret = 0;
+		}
+	}
+	preempt_enable();
+	return ret;
+}
+
+static int gio_close(struct inode *inode, struct file *filp)
+{
+	int minor;
+
+	minor = MINOR(inode->i_rdev);
+	if (minor < DEVCOUNT) {
+		openCnt--;
+	}
+	return 0;
+}
+
+static long gio_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+{
+	unsigned int data;
+	static unsigned int addr = 0;
+
+	if (cmd & 0x01) {	/* write */
+		if (copy_from_user(&data, (int *)arg, sizeof(int))) {
+			return -EFAULT;
+		}
+	}
+
+	switch (cmd) {
+	case GIODRV_IOCSGIOSETADDR:	/* address set */
+		addr = data;
+		break;
+
+	case GIODRV_IOCSGIODATA1:	/* write byte */
+		__raw_writeb((unsigned char)(0x0ff & data), addr);
+		break;
+
+	case GIODRV_IOCSGIODATA2:	/* write word */
+		if (addr & 0x01) {
+			return -EFAULT;
+		}
+		__raw_writew((unsigned short int)(0x0ffff & data), addr);
+		break;
+
+	case GIODRV_IOCSGIODATA4:	/* write long */
+		if (addr & 0x03) {
+			return -EFAULT;
+		}
+		__raw_writel(data, addr);
+		break;
+
+	case GIODRV_IOCGGIODATA1:	/* read byte */
+		data = __raw_readb(addr);
+		break;
+
+	case GIODRV_IOCGGIODATA2:	/* read word */
+		if (addr & 0x01) {
+			return -EFAULT;
+		}
+		data = __raw_readw(addr);
+		break;
+
+	case GIODRV_IOCGGIODATA4:	/* read long */
+		if (addr & 0x03) {
+			return -EFAULT;
+		}
+		data = __raw_readl(addr);
+		break;
+	default:
+		return -EFAULT;
+		break;
+	}
+
+	if ((cmd & 0x01) == 0) {	/* read */
+		if (copy_to_user((int *)arg, &data, sizeof(int))) {
+			return -EFAULT;
+		}
+	}
+	return 0;
+}
+
+static const struct file_operations gio_fops = {
+	.owner = THIS_MODULE,
+	.open = gio_open,	/* open */
+	.release = gio_close,	/* release */
+	.unlocked_ioctl = gio_ioctl,
+	.llseek = noop_llseek,
+};
+
+static int __init gio_init(void)
+{
+	int error;
+
+	printk(KERN_INFO "gio: driver initialized\n");
+
+	openCnt = 0;
+
+	if ((error = alloc_chrdev_region(&dev, 0, DEVCOUNT, "gio")) < 0) {
+		printk(KERN_ERR
+		       "gio: Couldn't alloc_chrdev_region, error=%d\n",
+		       error);
+		return 1;
+	}
+
+	cdev_p = cdev_alloc();
+	cdev_p->ops = &gio_fops;
+	error = cdev_add(cdev_p, dev, DEVCOUNT);
+	if (error) {
+		printk(KERN_ERR
+		       "gio: Couldn't cdev_add, error=%d\n", error);
+		return 1;
+	}
+
+	return 0;
+}
+
+static void __exit gio_exit(void)
+{
+	cdev_del(cdev_p);
+	unregister_chrdev_region(dev, DEVCOUNT);
+}
+
+module_init(gio_init);
+module_exit(gio_exit);
+
+MODULE_LICENSE("GPL");
diff --git a/kernel/arch/sh/boards/mach-landisk/irq.c b/kernel/arch/sh/boards/mach-landisk/irq.c
new file mode 100644
index 000000000..c00ace38d
--- /dev/null
+++ b/kernel/arch/sh/boards/mach-landisk/irq.c
@@ -0,0 +1,66 @@
+/*
+ * arch/sh/boards/mach-landisk/irq.c
+ *
+ * I-O DATA Device, Inc. LANDISK Support
+ *
+ * Copyright (C) 2005-2007 kogiidena
+ * Copyright (C) 2011 Nobuhiro Iwamatsu
+ *
+ * Copyright (C) 2001  Ian da Silva, Jeremy Siegel
+ * Based largely on io_se.c.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <mach-landisk/mach/iodata_landisk.h>
+
+enum {
+	UNUSED = 0,
+
+	PCI_INTA, /* PCI int A */
+	PCI_INTB, /* PCI int B */
+	PCI_INTC, /* PCI int C */
+	PCI_INTD, /* PCI int D */
+	ATA,	  /* ATA */
+	FATA,	  /* CF */
+	POWER,	  /* Power swtich */
+	BUTTON,	  /* Button swtich */
+};
+
+/* Vectors for LANDISK */
+static struct intc_vect vectors_landisk[] __initdata = {
+	INTC_IRQ(PCI_INTA, IRQ_PCIINTA),
+	INTC_IRQ(PCI_INTB, IRQ_PCIINTB),
+	INTC_IRQ(PCI_INTC, IRQ_PCIINTC),
+	INTC_IRQ(PCI_INTD, IRQ_PCIINTD),
+	INTC_IRQ(ATA, IRQ_ATA),
+	INTC_IRQ(FATA, IRQ_FATA),
+	INTC_IRQ(POWER, IRQ_POWER),
+	INTC_IRQ(BUTTON, IRQ_BUTTON),
+};
+
+/* IRLMSK mask register layout for LANDISK */
+static struct intc_mask_reg mask_registers_landisk[] __initdata = {
+	{ PA_IMASK, 0, 8, /* IRLMSK */
+	  {  BUTTON, POWER, FATA, ATA,
+	     PCI_INTD, PCI_INTC, PCI_INTB, PCI_INTA,
+	  }
+	},
+};
+
+static DECLARE_INTC_DESC(intc_desc_landisk, "landisk", vectors_landisk, NULL,
+			mask_registers_landisk, NULL, NULL);
+/*
+ * Initialize IRQ setting
+ */
+void __init init_landisk_IRQ(void)
+{
+	register_intc_controller(&intc_desc_landisk);
+	__raw_writeb(0x00, PA_PWRINT_CLR);
+}
diff --git a/kernel/arch/sh/boards/mach-landisk/psw.c b/kernel/arch/sh/boards/mach-landisk/psw.c
new file mode 100644
index 000000000..bef83522f
--- /dev/null
+++ b/kernel/arch/sh/boards/mach-landisk/psw.c
@@ -0,0 +1,143 @@
+/*
+ * arch/sh/boards/landisk/psw.c
+ *
+ * push switch support for LANDISK and USL-5P
+ *
+ * Copyright (C) 2006-2007  Paul Mundt
+ * Copyright (C) 2007  kogiidena
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/io.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <mach-landisk/mach/iodata_landisk.h>
+#include <asm/push-switch.h>
+
+static irqreturn_t psw_irq_handler(int irq, void *arg)
+{
+	struct platform_device *pdev = arg;
+	struct push_switch *psw = platform_get_drvdata(pdev);
+	struct push_switch_platform_info *psw_info = pdev->dev.platform_data;
+	unsigned int sw_value;
+	int ret = 0;
+
+	sw_value = (0x0ff & (~__raw_readb(PA_STATUS)));
+
+	/* Nothing to do if there's no state change */
+	if (psw->state) {
+		ret = 1;
+		goto out;
+	}
+
+	/* Figure out who raised it */
+	if (sw_value & (1 << psw_info->bit)) {
+		psw->state = 1;
+		mod_timer(&psw->debounce, jiffies + 50);
+		ret = 1;
+	}
+
+out:
+	/* Clear the switch IRQs */
+	__raw_writeb(0x00, PA_PWRINT_CLR);
+
+	return IRQ_RETVAL(ret);
+}
+
+static struct resource psw_power_resources[] = {
+	[0] = {
+		.start = IRQ_POWER,
+		.flags = IORESOURCE_IRQ,
+       },
+};
+
+static struct resource psw_usl5p_resources[] = {
+	[0] = {
+		.start = IRQ_BUTTON,
+		.flags = IORESOURCE_IRQ,
+	},
+};
+
+static struct push_switch_platform_info psw_power_platform_data = {
+	.name		= "psw_power",
+	.bit		= 4,
+	.irq_flags	= IRQF_SHARED,
+	.irq_handler	= psw_irq_handler,
+};
+
+static struct push_switch_platform_info psw1_platform_data = {
+	.name		= "psw1",
+	.bit		= 0,
+	.irq_flags	= IRQF_SHARED,
+	.irq_handler	= psw_irq_handler,
+};
+
+static struct push_switch_platform_info psw2_platform_data = {
+	.name		= "psw2",
+	.bit		= 2,
+	.irq_flags	= IRQF_SHARED,
+	.irq_handler	= psw_irq_handler,
+};
+
+static struct push_switch_platform_info psw3_platform_data = {
+	.name		= "psw3",
+	.bit		= 1,
+	.irq_flags	= IRQF_SHARED,
+	.irq_handler	= psw_irq_handler,
+};
+
+static struct platform_device psw_power_switch_device = {
+	.name		= "push-switch",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(psw_power_resources),
+	.resource	= psw_power_resources,
+	.dev		= {
+		.platform_data = &psw_power_platform_data,
+	},
+};
+
+static struct platform_device psw1_switch_device = {
+	.name		= "push-switch",
+	.id		= 1,
+	.num_resources	= ARRAY_SIZE(psw_usl5p_resources),
+	.resource	= psw_usl5p_resources,
+	.dev		= {
+		.platform_data = &psw1_platform_data,
+	},
+};
+
+static struct platform_device psw2_switch_device = {
+	.name		= "push-switch",
+	.id		= 2,
+	.num_resources	= ARRAY_SIZE(psw_usl5p_resources),
+	.resource	= psw_usl5p_resources,
+	.dev		= {
+		.platform_data = &psw2_platform_data,
+	},
+};
+
+static struct platform_device psw3_switch_device = {
+	.name		= "push-switch",
+	.id		= 3,
+	.num_resources	= ARRAY_SIZE(psw_usl5p_resources),
+	.resource	= psw_usl5p_resources,
+	.dev = {
+		.platform_data = &psw3_platform_data,
+	},
+};
+
+static struct platform_device *psw_devices[] = {
+	&psw_power_switch_device,
+	&psw1_switch_device,
+	&psw2_switch_device,
+	&psw3_switch_device,
+};
+
+static int __init psw_init(void)
+{
+	return platform_add_devices(psw_devices, ARRAY_SIZE(psw_devices));
+}
+module_init(psw_init);
diff --git a/kernel/arch/sh/boards/mach-landisk/setup.c b/kernel/arch/sh/boards/mach-landisk/setup.c
new file mode 100644
index 000000000..f1147caeb
--- /dev/null
+++ b/kernel/arch/sh/boards/mach-landisk/setup.c
@@ -0,0 +1,102 @@
+/*
+ * arch/sh/boards/landisk/setup.c
+ *
+ * I-O DATA Device, Inc. LANDISK Support.
+ *
+ * Copyright (C) 2000 Kazumoto Kojima
+ * Copyright (C) 2002 Paul Mundt
+ * Copylight (C) 2002 Atom Create Engineering Co., Ltd.
+ * Copyright (C) 2005-2007 kogiidena
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/ata_platform.h>
+#include <linux/pm.h>
+#include <linux/mm.h>
+#include <asm/machvec.h>
+#include <mach-landisk/mach/iodata_landisk.h>
+#include <asm/io.h>
+
+static void landisk_power_off(void)
+{
+	__raw_writeb(0x01, PA_SHUTDOWN);
+}
+
+static struct resource cf_ide_resources[3];
+
+static struct pata_platform_info pata_info = {
+	.ioport_shift	= 1,
+};
+
+static struct platform_device cf_ide_device = {
+	.name		= "pata_platform",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(cf_ide_resources),
+	.resource	= cf_ide_resources,
+	.dev		= {
+		.platform_data = &pata_info,
+	},
+};
+
+static struct platform_device rtc_device = {
+	.name		= "rs5c313",
+	.id		= -1,
+};
+
+static struct platform_device *landisk_devices[] __initdata = {
+	&cf_ide_device,
+	&rtc_device,
+};
+
+static int __init landisk_devices_setup(void)
+{
+	pgprot_t prot;
+	unsigned long paddrbase;
+	void *cf_ide_base;
+
+	/* open I/O area window */
+	paddrbase = virt_to_phys((void *)PA_AREA5_IO);
+	prot = PAGE_KERNEL_PCC(1, _PAGE_PCC_IO16);
+	cf_ide_base = ioremap_prot(paddrbase, PAGE_SIZE, pgprot_val(prot));
+	if (!cf_ide_base) {
+		printk("allocate_cf_area : can't open CF I/O window!\n");
+		return -ENOMEM;
+	}
+
+	/* IDE cmd address : 0x1f0-0x1f7 and 0x3f6 */
+	cf_ide_resources[0].start = (unsigned long)cf_ide_base + 0x40;
+	cf_ide_resources[0].end   = (unsigned long)cf_ide_base + 0x40 + 0x0f;
+	cf_ide_resources[0].flags = IORESOURCE_IO;
+	cf_ide_resources[1].start = (unsigned long)cf_ide_base + 0x2c;
+	cf_ide_resources[1].end   = (unsigned long)cf_ide_base + 0x2c + 0x03;
+	cf_ide_resources[1].flags = IORESOURCE_IO;
+	cf_ide_resources[2].start = IRQ_FATA;
+	cf_ide_resources[2].flags = IORESOURCE_IRQ;
+
+	return platform_add_devices(landisk_devices,
+				    ARRAY_SIZE(landisk_devices));
+}
+
+device_initcall(landisk_devices_setup);
+
+static void __init landisk_setup(char **cmdline_p)
+{
+	/* LED ON */
+	__raw_writeb(__raw_readb(PA_LED) | 0x03, PA_LED);
+
+	printk(KERN_INFO "I-O DATA DEVICE, INC. \"LANDISK Series\" support.\n");
+	pm_power_off = landisk_power_off;
+}
+
+/*
+ * The Machine Vector
+ */
+static struct sh_machine_vector mv_landisk __initmv = {
+	.mv_name = "LANDISK",
+	.mv_setup = landisk_setup,
+	.mv_init_irq = init_landisk_IRQ,
+};