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, 37 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-mv78xx0/mpp.c b/kernel/arch/arm/mach-mv78xx0/mpp.c
new file mode 100644
index 000000000..df5034217
--- /dev/null
+++ b/kernel/arch/arm/mach-mv78xx0/mpp.c
@@ -0,0 +1,37 @@
+/*
+ * arch/arm/mach-mv78x00/mpp.c
+ *
+ * MPP functions for Marvell MV78x00 SoCs
+ *
+ * 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/gpio.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <plat/mpp.h>
+#include <mach/hardware.h>
+#include "common.h"
+#include "mpp.h"
+
+static unsigned int __init mv78xx0_variant(void)
+{
+	u32 dev, rev;
+
+	mv78xx0_pcie_id(&dev, &rev);
+
+	if (dev == MV78100_DEV_ID && rev >= MV78100_REV_A0)
+		return MPP_78100_A0_MASK;
+
+	printk(KERN_ERR "MPP setup: unknown mv78x00 variant "
+			"(dev %#x rev %#x)\n", dev, rev);
+	return 0;
+}
+
+void __init mv78xx0_mpp_conf(unsigned int *mpp_list)
+{
+	orion_mpp_conf(mpp_list, mv78xx0_variant(),
+		       MPP_MAX, DEV_BUS_VIRT_BASE);
+}