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| author | Peter Tyser <ptyser@xes-inc.com> | 2009-06-30 17:15:49 -0500 |
|---|---|---|
| committer | Kumar Gala <galak@kernel.crashing.org> | 2009-07-01 23:12:05 -0500 |
| commit | 6af015b86b86d94de7ca1b23a3890bc93a50c2ab (patch) | |
| tree | 3c170711ebb3a034807df13385b45589441c6e9b /drivers/dma | |
| parent | 0d595f76bc9c7c8dff5bd31dffed87a840a03c56 (diff) | |
| download | u-boot-imx-6af015b86b86d94de7ca1b23a3890bc93a50c2ab.zip u-boot-imx-6af015b86b86d94de7ca1b23a3890bc93a50c2ab.tar.gz u-boot-imx-6af015b86b86d94de7ca1b23a3890bc93a50c2ab.tar.bz2 | |
fsl_dma: Make DMA transactions snoopable
Make DMA transactions snoopable so that CPUs can keep caches up-to-date.
This allows dma transactions to be used for operations such as memory
copies without any additional cache control operations.
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/fsl_dma.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/dma/fsl_dma.c b/drivers/dma/fsl_dma.c index e103c91..cba5d5b 100644 --- a/drivers/dma/fsl_dma.c +++ b/drivers/dma/fsl_dma.c @@ -72,8 +72,8 @@ static uint dma_check(void) { void dma_init(void) { volatile fsl_dma_t *dma = &dma_base->dma[0]; - out_be32(&dma->satr, FSL_DMA_SATR_SREAD_NO_SNOOP); - out_be32(&dma->datr, FSL_DMA_DATR_DWRITE_NO_SNOOP); + out_be32(&dma->satr, FSL_DMA_SATR_SREAD_SNOOP); + out_be32(&dma->datr, FSL_DMA_DATR_DWRITE_SNOOP); out_be32(&dma->sr, 0xffffffff); /* clear any errors */ dma_sync(); } |