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, 82 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-orion5x/board-dt.c b/kernel/arch/arm/mach-orion5x/board-dt.c
new file mode 100644
index 000000000..79f033b1d
--- /dev/null
+++ b/kernel/arch/arm/mach-orion5x/board-dt.c
@@ -0,0 +1,82 @@
+/*
+ * Copyright 2012 (C), Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+ *
+ * arch/arm/mach-orion5x/board-dt.c
+ *
+ * Flattened Device Tree board initialization
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/cpu.h>
+#include <linux/mbus.h>
+#include <linux/clk-provider.h>
+#include <linux/clocksource.h>
+#include <asm/system_misc.h>
+#include <asm/mach/arch.h>
+#include <asm/mach/map.h>
+#include <mach/orion5x.h>
+#include <mach/bridge-regs.h>
+#include <plat/irq.h>
+#include <plat/time.h>
+#include "common.h"
+
+static struct of_dev_auxdata orion5x_auxdata_lookup[] __initdata = {
+	OF_DEV_AUXDATA("marvell,orion-spi", 0xf1010600, "orion_spi.0", NULL),
+	OF_DEV_AUXDATA("marvell,mv64xxx-i2c", 0xf1011000, "mv64xxx_i2c.0",
+		       NULL),
+	OF_DEV_AUXDATA("marvell,orion-wdt", 0xf1020300, "orion_wdt", NULL),
+	OF_DEV_AUXDATA("marvell,orion-sata", 0xf1080000, "sata_mv.0", NULL),
+	OF_DEV_AUXDATA("marvell,orion-crypto", 0xf1090000, "mv_crypto", NULL),
+	{},
+};
+
+static void __init orion5x_dt_init(void)
+{
+	char *dev_name;
+	u32 dev, rev;
+
+	orion5x_id(&dev, &rev, &dev_name);
+	printk(KERN_INFO "Orion ID: %s. TCLK=%d.\n", dev_name, orion5x_tclk);
+
+	BUG_ON(mvebu_mbus_dt_init(false));
+
+	/*
+	 * Setup Orion address map
+	 */
+	orion5x_setup_wins();
+
+	/*
+	 * Don't issue "Wait for Interrupt" instruction if we are
+	 * running on D0 5281 silicon.
+	 */
+	if (dev == MV88F5281_DEV_ID && rev == MV88F5281_REV_D0) {
+		printk(KERN_INFO "Orion: Applying 5281 D0 WFI workaround.\n");
+		cpu_idle_poll_ctrl(true);
+	}
+
+	if (of_machine_is_compatible("maxtor,shared-storage-2"))
+		mss2_init();
+
+	of_platform_populate(NULL, of_default_bus_match_table,
+			     orion5x_auxdata_lookup, NULL);
+}
+
+static const char *orion5x_dt_compat[] = {
+	"marvell,orion5x",
+	NULL,
+};
+
+DT_MACHINE_START(ORION5X_DT, "Marvell Orion5x (Flattened Device Tree)")
+	/* Maintainer: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> */
+	.map_io		= orion5x_map_io,
+	.init_machine	= orion5x_dt_init,
+	.restart	= orion5x_restart,
+	.dt_compat	= orion5x_dt_compat,
+MACHINE_END