From: Greg Ungerer <gerg@snapgear.com>
Date: Wed, 2 Nov 2005 05:03:09 +0000 (+1000)
Subject: [PATCH] m68knommu: add 5208 ColdFire cache support
X-Git-Tag: firefly_0821_release~39876^2~38
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=4f4ef2967e1e8dce43e9cf7186aeb60a8c33aaf4;p=firefly-linux-kernel-4.4.55.git

[PATCH] m68knommu: add 5208 ColdFire cache support

Add support for the cpu cache of the 5208 ColdFire fmaily.
Patch originally from Matt Wadell (from code originally written by
Mike Lavender).

Signed-off-by: Greg Ungerer <gerg@uclinux.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/include/asm-m68knommu/mcfcache.h b/include/asm-m68knommu/mcfcache.h
index b17cd920977f..9cb401421835 100644
--- a/include/asm-m68knommu/mcfcache.h
+++ b/include/asm-m68knommu/mcfcache.h
@@ -117,6 +117,20 @@
 .endm
 #endif /* CONFIG_M5407 */
 
+#if defined(CONFIG_M520x)
+.macro CACHE_ENABLE
+	move.l	#0x01000000,%d0		/* invalidate whole cache */
+	movec	%d0,%CACR
+	nop
+	move.l	#0x0000c000,%d0		/* set SDRAM cached (write-thru) */
+	movec	%d0,%ACR0
+	move.l	#0x00000000,%d0		/* no other regions cached */
+	movec	%d0,%ACR1
+	move.l	#0x80400000,%d0		/* enable 8K instruction cache */
+	movec	%d0,%CACR
+	nop
+.endm
+#endif /* CONFIG_M520x */
 
 /****************************************************************************/
 #endif	/* __M68KNOMMU_MCFCACHE_H */