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, 130 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-ks8695/board-dsm320.c b/kernel/arch/arm/mach-ks8695/board-dsm320.c
new file mode 100644
index 000000000..d37c218c3
--- /dev/null
+++ b/kernel/arch/arm/mach-ks8695/board-dsm320.c
@@ -0,0 +1,130 @@
+/*
+ * arch/arm/mach-ks8695/board-dsm320.c
+ *
+ * DSM-320 D-Link Wireless Media Player, board support.
+ *
+ * Copyright 2008 Simtec Electronics
+ *		  Daniel Silverstone <dsilvers@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/gpio.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/map.h>
+#include <linux/mtd/physmap.h>
+#include <linux/mtd/partitions.h>
+
+#include <asm/mach-types.h>
+
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <asm/mach/irq.h>
+
+#include <mach/devices.h>
+#include <mach/gpio-ks8695.h>
+
+#include "generic.h"
+
+#ifdef CONFIG_PCI
+static int dsm320_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	switch (slot) {
+	case 0:
+		/* PCI-AHB bridge? */
+		return KS8695_IRQ_EXTERN0;
+	case 18:
+		/* Mini PCI slot */
+		return KS8695_IRQ_EXTERN2;
+	case 20:
+		/* RealMAGIC chip */
+		return KS8695_IRQ_EXTERN0;
+	}
+	BUG();
+}
+
+static struct ks8695_pci_cfg __initdata dsm320_pci = {
+	.mode		= KS8695_MODE_MINIPCI,
+	.map_irq	= dsm320_pci_map_irq,
+};
+
+static void __init dsm320_register_pci(void)
+{
+	/* Initialise the GPIO lines for interrupt mode */
+	/* RealMAGIC */
+	ks8695_gpio_interrupt(KS8695_GPIO_0, IRQ_TYPE_LEVEL_LOW);
+	/* MiniPCI Slot */
+	ks8695_gpio_interrupt(KS8695_GPIO_2, IRQ_TYPE_LEVEL_LOW);
+
+	ks8695_init_pci(&dsm320_pci);
+}
+
+#else
+static inline void __init dsm320_register_pci(void) { }
+#endif
+
+static struct physmap_flash_data dsm320_nor_pdata = {
+	.width		= 4,
+	.nr_parts	= 0,
+};
+
+static struct resource dsm320_nor_resource[] = {
+	[0] = {
+		.start = SZ_32M, /* We expect the bootloader to map
+				  * the flash here.
+				  */
+		.end   = SZ_32M + SZ_4M - 1,
+		.flags = IORESOURCE_MEM,
+	}
+};
+
+static struct platform_device dsm320_device_nor = {
+	.name		= "physmap-flash",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(dsm320_nor_resource),
+	.resource	= dsm320_nor_resource,
+	.dev		= {
+		.platform_data = &dsm320_nor_pdata,
+	},
+};
+
+void __init dsm320_register_nor(void)
+{
+	int ret;
+
+	ret = platform_device_register(&dsm320_device_nor);
+	if (ret < 0)
+		printk(KERN_ERR "failed to register physmap-flash device\n");
+}
+
+static void __init dsm320_init(void)
+{
+	/* GPIO registration */
+	ks8695_register_gpios();
+
+	/* PCI registration */
+	dsm320_register_pci();
+
+	/* Network device */
+	ks8695_add_device_lan();	/* eth0 = LAN */
+
+	/* NOR devices */
+	dsm320_register_nor();
+}
+
+MACHINE_START(DSM320, "D-Link DSM-320 Wireless Media Player")
+	/* Maintainer: Simtec Electronics. */
+	.atag_offset	= 0x100,
+	.map_io		= ks8695_map_io,
+	.init_irq	= ks8695_init_irq,
+	.init_machine	= dsm320_init,
+	.init_time	= ks8695_timer_init,
+	.restart	= ks8695_restart,
+MACHINE_END