diff options
| author | Kuo-Jung Su <dantesu@faraday-tech.com> | 2013-07-29 13:51:43 +0800 |
|---|---|---|
| committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2013-09-14 12:08:00 +0200 |
| commit | 771f74c3d31a265bae103b2b407286ec03a4589b (patch) | |
| tree | b0b3137f121cb24281d450872803646e250a963c /arch/arm/include/asm/dma-mapping.h | |
| parent | fb8d49cb4492332066a2dc775ef3c57c49fd1eca (diff) | |
arm: dma_alloc_coherent: malloc() -> memalign()
Even though the MMU/D-cache is off, some DMA engines still
expect strict address alignment.
For example, the incoming Faraday FTMAC110 & FTGMAC100 ethernet
controllers expect the tx/rx descriptors should always be aligned
to 16-bytes boundary.
Signed-off-by: Kuo-Jung Su <dantesu@faraday-tech.com>
CC: Albert ARIBAUD <albert.u.boot@aribaud.net>
Diffstat (limited to 'arch/arm/include/asm/dma-mapping.h')
| -rw-r--r-- | arch/arm/include/asm/dma-mapping.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h index 009863beec..55a4e266a0 100644 --- a/arch/arm/include/asm/dma-mapping.h +++ b/arch/arm/include/asm/dma-mapping.h @@ -16,7 +16,7 @@ enum dma_data_direction { static void *dma_alloc_coherent(size_t len, unsigned long *handle) { - *handle = (unsigned long)malloc(len); + *handle = (unsigned long)memalign(ARCH_DMA_MINALIGN, len); return (void *)*handle; } |