m68knommu: fix 528x ColdFire cache settings

Fix problems with the 528x ColdFire CPU cache setup.
Do not cache the flash region (if present), and make the runtime
settings consistent with the init setting.

Problems pointed out by Bernd Buttner <b.buettner@mkc-gmbh.de>
Signed-off-by: NGreg Ungerer <gerg@uclinux.org>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

include/asm-m68knommu/cacheflush.h

@@ -53,7 +53,7 @@ static inline void __flush_cache_all(void)
 #endif /* CONFIG_M5407 */
 #if defined(CONFIG_M527x) || defined(CONFIG_M528x)
 	__asm__ __volatile__ (
-        	"movel	#0x81400100, %%d0\n\t"
+		"movel	#0x81000200, %%d0\n\t"
         	"movec	%%d0, %%CACR\n\t"
 		"nop\n\t"
 		: : : "d0" );

include/asm-m68knommu/mcfcache.h

@@ -60,7 +60,7 @@
 	nop
 	movel	#0x0000c020, %d0	/* Set SDRAM cached only */
 	movec	%d0, %ACR0
-	movel	#0xff00c000, %d0	/* Cache Flash also */
+	movel	#0x00000000, %d0	/* No other regions cached */
 	movec	%d0, %ACR1
 	movel	#0x80000200, %d0	/* Setup cache mask */
 	movec	%d0, %CACR		/* Enable cache */