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, 68 insertions, 0 deletions

diff --git a/kernel/arch/mn10300/unit-asb2303/unit-init.c b/kernel/arch/mn10300/unit-asb2303/unit-init.c
new file mode 100644
index 000000000..834a76aa5
--- /dev/null
+++ b/kernel/arch/mn10300/unit-asb2303/unit-init.c
@@ -0,0 +1,68 @@
+/* ASB2303 initialisation
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/param.h>
+#include <linux/init.h>
+#include <linux/device.h>
+
+#include <asm/io.h>
+#include <asm/setup.h>
+#include <asm/processor.h>
+#include <asm/irq.h>
+#include <asm/intctl-regs.h>
+
+/*
+ * initialise some of the unit hardware before gdbstub is set up
+ */
+asmlinkage void __init unit_init(void)
+{
+	/* set up the external interrupts */
+	SET_XIRQ_TRIGGER(0, XIRQ_TRIGGER_HILEVEL);
+	SET_XIRQ_TRIGGER(2, XIRQ_TRIGGER_LOWLEVEL);
+	SET_XIRQ_TRIGGER(3, XIRQ_TRIGGER_HILEVEL);
+	SET_XIRQ_TRIGGER(4, XIRQ_TRIGGER_LOWLEVEL);
+	SET_XIRQ_TRIGGER(5, XIRQ_TRIGGER_LOWLEVEL);
+
+#ifdef CONFIG_EXT_SERIAL_IRQ_LEVEL
+	set_intr_level(XIRQ0, NUM2GxICR_LEVEL(CONFIG_EXT_SERIAL_IRQ_LEVEL));
+#endif
+
+#ifdef CONFIG_ETHERNET_IRQ_LEVEL
+	set_intr_level(XIRQ3, NUM2GxICR_LEVEL(CONFIG_ETHERNET_IRQ_LEVEL));
+#endif
+}
+
+/*
+ * initialise the rest of the unit hardware after gdbstub is ready
+ */
+void __init unit_setup(void)
+{
+}
+
+/*
+ * initialise the external interrupts used by a unit of this type
+ */
+void __init unit_init_IRQ(void)
+{
+	unsigned int extnum;
+
+	for (extnum = 0; extnum < NR_XIRQS; extnum++) {
+		switch (GET_XIRQ_TRIGGER(extnum)) {
+		case XIRQ_TRIGGER_HILEVEL:
+		case XIRQ_TRIGGER_LOWLEVEL:
+			mn10300_set_lateack_irq_type(XIRQ2IRQ(extnum));
+			break;
+		default:
+			break;
+		}
+	}
+}