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@@ -5,6 +5,9 @@
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* (C) Copyright 2000-2004, Greg Ungerer <gerg@snapgear.com>
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*/
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#include <linux/mm.h>
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+#if defined(CONFIG_M5407) || defined(CONFIG_M548x)
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+#include <asm/m54xxacr.h>
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+#endif
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#define flush_cache_all() __flush_cache_all()
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#define flush_cache_mm(mm) do { } while (0)
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@@ -27,31 +30,9 @@
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#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
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memcpy(dst, src, len)
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+#ifndef __flush_cache_all
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static inline void __flush_cache_all(void)
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{
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-#if defined(CONFIG_M5407) || defined(CONFIG_M548x)
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- /*
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- * Use cpushl to push and invalidate all cache lines.
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- * Gas doesn't seem to know how to generate the ColdFire
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- * cpushl instruction... Oh well, bit stuff it for now.
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- */
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- __asm__ __volatile__ (
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- "nop\n\t"
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- "clrl %%d0\n\t"
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- "1:\n\t"
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- "movel %%d0,%%a0\n\t"
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- "2:\n\t"
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- ".word 0xf468\n\t"
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- "addl #0x10,%%a0\n\t"
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- "cmpl #0x00000800,%%a0\n\t"
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- "blt 2b\n\t"
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- "addql #1,%%d0\n\t"
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- "cmpil #4,%%d0\n\t"
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- "bne 1b\n\t"
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- "movel #0xb6088500,%%d0\n\t"
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- "movec %%d0,%%CACR\n\t"
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- : : : "d0", "a0" );
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-#endif /* CONFIG_M5407 */
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#if defined(CONFIG_M523x) || defined(CONFIG_M527x)
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__asm__ __volatile__ (
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"movel #0x81400100, %%d0\n\t"
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@@ -88,5 +69,6 @@ static inline void __flush_cache_all(void)
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: : : "d0" );
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#endif /* CONFIG_M532x */
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}
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+#endif /* __flush_cache_all */
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#endif /* _M68KNOMMU_CACHEFLUSH_H */
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