summaryrefslogtreecommitdiffstats
path: root/arch/arm/plat-omap/dma.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/plat-omap/dma.c')
-rw-r--r--arch/arm/plat-omap/dma.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index 5c6c342..1d95996 100644
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -937,6 +937,15 @@ void omap_start_dma(int lch)
{
u32 l;
+ /*
+ * The CPC/CDAC register needs to be initialized to zero
+ * before starting dma transfer.
+ */
+ if (cpu_is_omap15xx())
+ dma_write(0, CPC(lch));
+ else
+ dma_write(0, CDAC(lch));
+
if (!omap_dma_in_1510_mode() && dma_chan[lch].next_lch != -1) {
int next_lch, cur_lch;
char dma_chan_link_map[OMAP_DMA4_LOGICAL_DMA_CH_COUNT];
OpenPOWER on IntegriCloud