use broken-out patches for the coldfire to make it easier to follow differences against the bsp

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@16547 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/coldfire/patches/053-mcfv4e_brcache_inval.patch

@@ -0,0 +1,42 @@
+From eba69831e8f35174e2e15e373a66f40dc0be8929 Mon Sep 17 00:00:00 2001
+From: Kurt Mahan <kmahan@freescale.com>
+Date: Wed, 14 May 2008 12:23:12 -0600
+Subject: [PATCH] Force branch-cache invalidate on task switch.
+
+When finishing a task switch make sure the branch cache
+gets invalidated to ensure no stale entries exist for
+the next user space.
+
+LTIBName: mcfv4e-brcache-inval
+Signed-off-by: Kurt Mahan <kmahan@freescale.com>
+---
+ include/asm-m68k/system.h |   15 +++++++++++++++
+ 1 files changed, 15 insertions(+), 0 deletions(-)
+
+--- a/include/asm-m68k/system.h
++++ b/include/asm-m68k/system.h
+@@ -5,9 +5,24 @@
+ #include <linux/kernel.h>
+ #include <asm/segment.h>
+ #include <asm/entry.h>
++#include <asm/cfcache.h>
+ 
+ #ifdef __KERNEL__
+ 
++#ifdef CONFIG_COLDFIRE
++#define FLUSH_BC        (0x00040000)
++
++#define finish_arch_switch(prev) do {		\
++	unsigned long tmpreg;			\
++	asm volatile ( "move.l %2,%0\n"		\
++		       "orl %1,%0\n"		\
++		       "movec %0,%%cacr"	\
++		       : "=&d" (tmpreg)		\
++		       : "id" (FLUSH_BC), "m" (shadow_cacr));	\
++	} while(0)
++
++#endif
++
+ /*
+  * switch_to(n) should switch tasks to task ptr, first checking that
+  * ptr isn't the current task, in which case it does nothing.  This