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m68knommu: fix cache flushing for the 527x ColdFire processors
authorGreg Ungerer <gerg@uclinux.org>
Tue, 13 Jan 2009 00:17:30 +0000 (10:17 +1000)
committerGreg Ungerer <gerg@uclinux.org>
Tue, 27 Jan 2009 06:42:00 +0000 (16:42 +1000)
Fix cache flushing for the 527x ColdFire processors
Its CACR register format is slightly different.

Along with this add support for flushing the 523x cache, which uses
the same format as the 527x ColdFire's, and was missing flush support.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
arch/m68k/include/asm/cacheflush_no.h patch | blob | blame | history

diff --git a/arch/m68k/include/asm/cacheflush_no.h b/arch/m68k/include/asm/cacheflush_no.h
index 87e5dc0413b468528dd39ab5a294e3a52d786518..c65f00a945532a46f7bf4c21d71cea9b0feabd0e 100644 (file)
--- a/arch/m68k/include/asm/cacheflush_no.h
+++ b/arch/m68k/include/asm/cacheflush_no.h
@@ -51,13 +51,20 @@ static inline void __flush_cache_all(void)
                "movec  %%d0,%%CACR\n\t"
                : : : "d0", "a0" );
 #endif /* CONFIG_M5407 */
-#if defined(CONFIG_M527x) || defined(CONFIG_M528x)
+#if defined(CONFIG_M523x) || defined(CONFIG_M527x)
+       __asm__ __volatile__ (
+               "movel  #0x81400100, %%d0\n\t"
+               "movec  %%d0, %%CACR\n\t"
+               "nop\n\t"
+               : : : "d0" );
+#endif /* CONFIG_M523x || CONFIG_M527x */
+#if defined(CONFIG_M528x)
        __asm__ __volatile__ (
                "movel  #0x81000200, %%d0\n\t"
                "movec  %%d0, %%CACR\n\t"
                "nop\n\t"
                : : : "d0" );
-#endif /* CONFIG_M527x || CONFIG_M528x */
+#endif /* CONFIG_M528x */
 #if defined(CONFIG_M5206) || defined(CONFIG_M5206e) || defined(CONFIG_M5272)
        __asm__ __volatile__ (
                "movel  #0x81000100, %%d0\n\t"