From: Greg Ungerer <gerg@uclinux.org>
Date: Tue, 18 Oct 2011 06:07:25 +0000 (+1000)
Subject: m68k: modify cache push and clear code for ColdFire with MMU enable
X-Git-Tag: v3.3-rc1~180^2~14
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=60610192559d430dd24d9b508ae9d8d249709af9;p=karo-tx-linux.git

m68k: modify cache push and clear code for ColdFire with MMU enable

The cache push and clear code only need to flush the branch cache on
the write-through cache setup of the ColdFire V4e with MMU enabled.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Matt Waddel <mwaddel@yahoo.com>
Acked-by: Kurt Mahan <kmahan@xmission.com>
---

diff --git a/arch/m68k/mm/memory.c b/arch/m68k/mm/memory.c
index 34c77ce24fba..a5dbb74fe1de 100644
--- a/arch/m68k/mm/memory.c
+++ b/arch/m68k/mm/memory.c
@@ -203,7 +203,9 @@ static inline void pushcl040(unsigned long paddr)
 
 void cache_clear (unsigned long paddr, int len)
 {
-    if (CPU_IS_040_OR_060) {
+    if (CPU_IS_COLDFIRE) {
+	flush_cf_bcache(0, DCACHE_MAX_ADDR);
+    } else if (CPU_IS_040_OR_060) {
 	int tmp;
 
 	/*
@@ -250,7 +252,9 @@ EXPORT_SYMBOL(cache_clear);
 
 void cache_push (unsigned long paddr, int len)
 {
-    if (CPU_IS_040_OR_060) {
+    if (CPU_IS_COLDFIRE) {
+	flush_cf_bcache(0, DCACHE_MAX_ADDR);
+    } else if (CPU_IS_040_OR_060) {
 	int tmp = PAGE_SIZE;
 
 	/*