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authormerge <null@invalid>2009-01-22 13:55:32 +0000
committerAndy Green <agreen@octopus.localdomain>2009-01-22 13:55:32 +0000
commitaa6f5ffbdba45aa8e19e5048648fc6c7b25376d3 (patch)
treefbb786d0ac6f8a774fd834e9ce951197e60fbffa /arch/blackfin/mach-common/cache-c.c
parentf2d78193eae5dccd3d588d2c8ea0866efc368332 (diff)
MERGE-via-pending-tracking-hist-MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141
pending-tracking-hist top was MERGE-via-stable-tracking-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040-1232632141 / fdf777a63bcb59e0dfd78bfe2c6242e01f6d4eb9 ... parent commitmessage: From: merge <null@invalid> MERGE-via-stable-tracking-hist-MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 stable-tracking-hist top was MERGE-via-mokopatches-tracking-fix-stray-endmenu-patch-1232632040 / 90463bfd2d5a3c8b52f6e6d71024a00e052b0ced ... parent commitmessage: From: merge <null@invalid> MERGE-via-mokopatches-tracking-hist-fix-stray-endmenu-patch mokopatches-tracking-hist top was fix-stray-endmenu-patch / 3630e0be570de8057e7f8d2fe501ed353cdf34e6 ... parent commitmessage: From: Andy Green <andy@openmoko.com> fix-stray-endmenu.patch Signed-off-by: Andy Green <andy@openmoko.com>
Diffstat (limited to 'arch/blackfin/mach-common/cache-c.c')
-rw-r--r--arch/blackfin/mach-common/cache-c.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/blackfin/mach-common/cache-c.c b/arch/blackfin/mach-common/cache-c.c
new file mode 100644
index 00000000000..e6ab1f81512
--- /dev/null
+++ b/arch/blackfin/mach-common/cache-c.c
@@ -0,0 +1,24 @@
+/*
+ * Blackfin cache control code (simpler control-style functions)
+ *
+ * Copyright 2004-2008 Analog Devices Inc.
+ *
+ * Enter bugs at http://blackfin.uclinux.org/
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <asm/blackfin.h>
+
+/* Invalidate the Entire Data cache by
+ * clearing DMC[1:0] bits
+ */
+void blackfin_invalidate_entire_dcache(void)
+{
+ u32 dmem = bfin_read_DMEM_CONTROL();
+ SSYNC();
+ bfin_write_DMEM_CONTROL(dmem & ~0xc);
+ SSYNC();
+ bfin_write_DMEM_CONTROL(dmem);
+ SSYNC();
+}