From a924db7c00655447c5228bd74da070c69b7cadbc Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Fri, 3 Aug 2007 17:43:29 +0800 Subject: Blackfin arch: Add option to priorize DMA over Core Signed-off-by: Michael Hennerich Signed-off-by: Bryan Wu --- arch/blackfin/kernel/bfin_dma_5xx.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'arch/blackfin/kernel/bfin_dma_5xx.c') diff --git a/arch/blackfin/kernel/bfin_dma_5xx.c b/arch/blackfin/kernel/bfin_dma_5xx.c index 7e220190835..62f5a35c13e 100644 --- a/arch/blackfin/kernel/bfin_dma_5xx.c +++ b/arch/blackfin/kernel/bfin_dma_5xx.c @@ -73,6 +73,11 @@ static int __init blackfin_dma_init(void) /* Mark MEMDMA Channel 0 as requested since we're using it internally */ dma_ch[CH_MEM_STREAM0_DEST].chan_status = DMA_CHANNEL_REQUESTED; dma_ch[CH_MEM_STREAM0_SRC].chan_status = DMA_CHANNEL_REQUESTED; + +#if defined(CONFIG_DEB_DMA_URGENT) + bfin_write_EBIU_DDRQUE(bfin_read_EBIU_DDRQUE() + | DEB1_URGENT | DEB2_URGENT | DEB3_URGENT); +#endif return 0; } -- cgit v1.2.3-70-g09d2