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, 41 insertions, 0 deletions

diff --git a/kernel/arch/m68k/include/asm/timex.h b/kernel/arch/m68k/include/asm/timex.h
new file mode 100644
index 000000000..efc1f4892
--- /dev/null
+++ b/kernel/arch/m68k/include/asm/timex.h
@@ -0,0 +1,41 @@
+/*
+ * linux/include/asm-m68k/timex.h
+ *
+ * m68k architecture timex specifications
+ */
+#ifndef _ASMm68K_TIMEX_H
+#define _ASMm68K_TIMEX_H
+
+#ifdef CONFIG_COLDFIRE
+/*
+ * CLOCK_TICK_RATE should give the underlying frequency of the tick timer
+ * to make ntp work best.  For Coldfires, that's the main clock.
+ */
+#include <asm/coldfire.h>
+#define CLOCK_TICK_RATE	MCF_CLK
+#else
+/*
+ * This default CLOCK_TICK_RATE is probably wrong for many 68k boards
+ * Users of those boards will need to check and modify accordingly
+ */
+#define CLOCK_TICK_RATE	1193180 /* Underlying HZ */
+#endif
+
+typedef unsigned long cycles_t;
+
+static inline cycles_t get_cycles(void)
+{
+	return 0;
+}
+
+extern unsigned long (*mach_random_get_entropy)(void);
+
+static inline unsigned long random_get_entropy(void)
+{
+	if (mach_random_get_entropy)
+		return mach_random_get_entropy();
+	return 0;
+}
+#define random_get_entropy	random_get_entropy
+
+#endif