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, 104 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-pxa/mp900.c b/kernel/arch/arm/mach-pxa/mp900.c
new file mode 100644
index 000000000..854f1f562
--- /dev/null
+++ b/kernel/arch/arm/mach-pxa/mp900.c
@@ -0,0 +1,104 @@
+/*
+ *  linux/arch/arm/mach-pxa/mp900.c
+ *
+ *  Support for the NEC MobilePro900/C platform
+ *
+ *  Based on mach-pxa/gumstix.c
+ *
+ *  2007, 2008 Kristoffer Ericson <kristoffer.ericson@gmail.com>
+ *  2007, 2008 Michael Petchkovsky <mkpetch@internode.on.net>
+ *
+ *  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/init.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/types.h>
+#include <linux/usb/isp116x.h>
+
+#include <asm/mach-types.h>
+#include <asm/mach/arch.h>
+
+#include <mach/pxa25x.h>
+#include "generic.h"
+
+static void isp116x_pfm_delay(struct device *dev, int delay)
+{
+
+	/* 400Mhz PXA2 = 2.5ns / instruction */
+
+	int cyc = delay / 10;
+
+	/* 4 Instructions = 4 x 2.5ns = 10ns */
+	__asm__ volatile ("0:\n"
+		"subs %0, %1, #1\n"
+		"bge 0b\n"
+		:"=r" (cyc)
+		:"0"(cyc)
+	);
+}
+
+static struct isp116x_platform_data isp116x_pfm_data = {
+	.remote_wakeup_enable = 1,
+	.delay = isp116x_pfm_delay,
+};
+
+static struct resource isp116x_pfm_resources[] = {
+	[0] =	{
+		.start	= 0x0d000000,
+		.end	= 0x0d000000 + 1,
+		.flags	= IORESOURCE_MEM,
+		},
+	[1] =	{
+		.start  = 0x0d000000 + 4,
+		.end	= 0x0d000000 + 5,
+		.flags  = IORESOURCE_MEM,
+		},
+	[2] =	{
+		.start	= 61,
+		.end	= 61,
+		.flags	= IORESOURCE_IRQ,
+		},
+};
+
+static struct platform_device mp900c_dummy_device = {
+	.name		= "mp900c_dummy",
+	.id		= -1,
+};
+
+static struct platform_device mp900c_usb = {
+	.name		= "isp116x-hcd",
+	.num_resources	= ARRAY_SIZE(isp116x_pfm_resources),
+	.resource	= isp116x_pfm_resources,
+	.dev.platform_data = &isp116x_pfm_data,
+};
+
+static struct platform_device *devices[] __initdata = {
+	&mp900c_dummy_device,
+	&mp900c_usb,
+};
+
+static void __init mp900c_init(void)
+{
+	printk(KERN_INFO "MobilePro 900/C machine init\n");
+	pxa_set_ffuart_info(NULL);
+	pxa_set_btuart_info(NULL);
+	pxa_set_stuart_info(NULL);
+	platform_add_devices(devices, ARRAY_SIZE(devices));
+}
+
+/* Maintainer - Michael Petchkovsky <mkpetch@internode.on.net> */
+MACHINE_START(NEC_MP900, "MobilePro900/C")
+	.atag_offset	= 0x220100,
+	.init_time	= pxa_timer_init,
+	.map_io		= pxa25x_map_io,
+	.nr_irqs	= PXA_NR_IRQS,
+	.init_irq	= pxa25x_init_irq,
+	.handle_irq	= pxa25x_handle_irq,
+	.init_machine	= mp900c_init,
+	.restart	= pxa_restart,
+MACHINE_END
+