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authorMike Frysinger <vapier.adi@gmail.com>2009-01-07 23:14:39 +0800
committerBryan Wu <cooloney@kernel.org>2009-01-07 23:14:39 +0800
commitdd3dd384df7f9f77fba6875a606e5a663510cd1d (patch)
tree4838d9fd78192fedc2ba8c6d061b8c5bf3b481d9 /arch/blackfin/include
parent49946e7329fa38d79aed1a9ef4a64c320ada305d (diff)
downloadblackbird-op-linux-dd3dd384df7f9f77fba6875a606e5a663510cd1d.tar.gz
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Blackfin arch: rewrite dma_memcpy() and dma in/out functions
- unify all dma in/out functions (takes ~35 lines of code now) - unify dma_memcpy with dma in/out functions (1 place that touches MDMA0 registers) - add support for 32bit transfers - cleanup dma_memcpy code to be much more readable - irqs are disabled only while programming MDMA registers rather than the entire transaction Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin/include')
-rw-r--r--arch/blackfin/include/asm/dma.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/dma.h b/arch/blackfin/include/asm/dma.h
index d059b2de1629..ca8252ab7a10 100644
--- a/arch/blackfin/include/asm/dma.h
+++ b/arch/blackfin/include/asm/dma.h
@@ -178,6 +178,7 @@ void dma_enable_irq(unsigned int channel);
void clear_dma_irqstat(unsigned int channel);
void *dma_memcpy(void *dest, const void *src, size_t count);
void *safe_dma_memcpy(void *dest, const void *src, size_t count);
+void blackfin_dma_early_init(void);
extern int channel2irq(unsigned int channel);
extern struct dma_register *dma_io_base_addr[MAX_DMA_CHANNELS];
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