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m68k: use simpler dma_alloc_coherent() for ColdFire CPUs

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On all ColdFire platforms (whether MMU enabled or not) we want to use the
simple page based dma_alloc_coherent. We don't want the virtual mapping
version that is used on classic m68k setups. So modify the conditionals
to use the existing simpler dma_alloc_coherent on all ColdFire and non-MMU
builds.

Signed-off-by: Greg Ungerer <gerg@uclinux.org>
This commit is contained in:
Greg Ungerer 2012-06-26 21:02:54 +10:00
parent 8b1e5a0626
commit b60f187fec
1 changed files with 2 additions and 2 deletions
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4
arch/m68k/kernel/dma.c
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@ -16,7 +16,7 @@
#include <asm/pgalloc.h>
#ifdef CONFIG_MMU
#if defined(CONFIG_MMU) && !defined(CONFIG_COLDFIRE)
void *dma_alloc_coherent(struct device *dev, size_t size,
dma_addr_t *handle, gfp_t flag)
@ -96,7 +96,7 @@ void dma_free_coherent(struct device *dev, size_t size,
free_pages((unsigned long)vaddr, get_order(size));
}
#endif /* CONFIG_MMU */
#endif /* CONFIG_MMU && !CONFIG_COLDFIRE */
EXPORT_SYMBOL(dma_alloc_coherent);
EXPORT_SYMBOL(dma_free_coherent);