dmaengine: at_hdmac: specialize AHB interfaces to optimize transfers

[pandora-kernel.git] / drivers / dma / at_hdmac_regs.h

diff --git a/drivers/dma/at_hdmac_regs.h b/drivers/dma/at_hdmac_regs.h
index c79a9e0..ae3056d 100644 (file)
--- a/drivers/dma/at_hdmac_regs.h
+++ b/drivers/dma/at_hdmac_regs.h
@@ -103,6 +103,10 @@
 /* Bitfields in CTRLB */
 #define        ATC_SIF(i)              (0x3 & (i))     /* Src tx done via AHB-Lite Interface i */
 #define        ATC_DIF(i)              ((0x3 & (i)) <<  4)     /* Dst tx done via AHB-Lite Interface i */
+                                 /* Specify AHB interfaces */
+#define AT_DMA_MEM_IF          0 /* interface 0 as memory interface */
+#define AT_DMA_PER_IF          1 /* interface 1 as peripheral interface */
+
 #define        ATC_SRC_PIP             (0x1 <<  8)     /* Source Picture-in-Picture enabled */
 #define        ATC_DST_PIP             (0x1 << 12)     /* Destination Picture-in-Picture enabled */
 #define        ATC_SRC_DSCR_DIS        (0x1 << 16)     /* Src Descriptor fetch disable */