diff options
| author |   Mike Frysinger <vapier.adi@gmail.com> | 2009-01-07 23:14:38 +0800 |
|---|---|---|
| committer |   Bryan Wu <cooloney@kernel.org> | 2009-01-07 23:14:38 +0800 |
| commit | d41e8009994f429ef7198a750c37fd9660366fab (patch) | |
| tree | 34a8cd4e044bc9b60f275838e3a98bb2f9946b3a /arch/blackfin/include/asm/dma.h | |
| parent | Blackfin arch: add bfin_read_MDMA_S0_CONFIG compat for dma_memcpy (diff) | |
| download | linux-dev-d41e8009994f429ef7198a750c37fd9660366fab.tar.xz linux-dev-d41e8009994f429ef7198a750c37fd9660366fab.zip | |
Blackfin arch: dma code: cannot simply OR the ndsize
cannot simply OR the ndsize ... need to clear out the old value first
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin/include/asm/dma.h')
| -rw-r--r-- | arch/blackfin/include/asm/dma.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/blackfin/include/asm/dma.h b/arch/blackfin/include/asm/dma.h index 264feb4eb175..f58ca64d729c 100644 --- a/arch/blackfin/include/asm/dma.h +++ b/arch/blackfin/include/asm/dma.h @@ -205,7 +205,9 @@ static inline unsigned long get_dma_curr_addr(unsigned int channel) static inline void set_dma_sg(unsigned int channel, struct dmasg *sg, int ndsize) { - dma_ch[channel].regs->cfg |= ((ndsize & 0x0F) << 8); + dma_ch[channel].regs->cfg = + (dma_ch[channel].regs->cfg & ~(0xf << 8)) | + ((ndsize & 0xf) << 8); dma_ch[channel].regs->next_desc_ptr = sg; } |