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, 58 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-imx/mach-imx53.c b/kernel/arch/arm/mach-imx/mach-imx53.c
new file mode 100644
index 000000000..86316a979
--- /dev/null
+++ b/kernel/arch/arm/mach-imx/mach-imx53.c
@@ -0,0 +1,58 @@
+/*
+ * Copyright 2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ * Copyright 2011 Linaro Ltd.
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <linux/clk.h>
+#include <linux/clkdev.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/time.h>
+
+#include "common.h"
+#include "hardware.h"
+
+static void __init imx53_init_early(void)
+{
+	mxc_set_cpu_type(MXC_CPU_MX53);
+}
+
+static void __init imx53_dt_init(void)
+{
+	imx_src_init();
+
+	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+
+	imx_aips_allow_unprivileged_access("fsl,imx53-aipstz");
+}
+
+static void __init imx53_init_late(void)
+{
+	imx53_pm_init();
+
+	platform_device_register_simple("cpufreq-dt", -1, NULL, 0);
+}
+
+static const char * const imx53_dt_board_compat[] __initconst = {
+	"fsl,imx53",
+	NULL
+};
+
+DT_MACHINE_START(IMX53_DT, "Freescale i.MX53 (Device Tree Support)")
+	.init_early	= imx53_init_early,
+	.init_irq	= tzic_init_irq,
+	.init_machine	= imx53_dt_init,
+	.init_late	= imx53_init_late,
+	.dt_compat	= imx53_dt_board_compat,
+MACHINE_END