From 6af015b86b86d94de7ca1b23a3890bc93a50c2ab Mon Sep 17 00:00:00 2001 From: Peter Tyser Date: Tue, 30 Jun 2009 17:15:49 -0500 Subject: [PATCH] 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 Signed-off-by: Kumar Gala --- drivers/dma/fsl_dma.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/dma/fsl_dma.c b/drivers/dma/fsl_dma.c index e103c910fdd..cba5d5b8a84 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(); }