| Message ID | 1373642781-32631-3-git-send-email-gsi@denx.de (mailing list archive) |
|---|---|
| State | Superseded |
| Delegated to: | Anatolij Gustschin |
| Headers | show |
diff --git a/drivers/dma/mpc512x_dma.c b/drivers/dma/mpc512x_dma.c index f90b717..df10a48 100644 --- a/drivers/dma/mpc512x_dma.c +++ b/drivers/dma/mpc512x_dma.c @@ -272,10 +272,12 @@ static void mpc_dma_execute(struct mpc_dma_chan *mchan) mdma->tcd[cid].e_sg = 1; switch (cid) { - case 26: + default: + /* peripherals involved, use external request */ out_8(&mdma->regs->dmaserq, cid); break; case 32: + /* memory transfer, software provided start signal */ out_8(&mdma->regs->dmassrt, cid); break; }
adjust the conditions how submitted DMA jobs get started: memory transfers need to get initiated by an explicit software request, all transfers which involve peripherals need to reference the external requester line Signed-off-by: Gerhard Sittig <gsi@denx.de> --- drivers/dma/mpc512x_dma.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-)