release/src-rt-6.x.4708/linux/linux-2.6.36/arch/blackfin/mach-bf527/include/mach/dma.h

   1 /* mach/dma.h - arch-specific DMA defines
   2  *
   3  * Copyright 2004-2008 Analog Devices Inc.
   4  *
   5  * Licensed under the GPL-2 or later.
   6  */
   7
   8 #ifndef _MACH_DMA_H_
   9 #define _MACH_DMA_H_
  10
  11 #define MAX_DMA_CHANNELS 16
  12
  13 #define CH_PPI                  0       /* PPI receive/transmit or NFC */
  14 #define CH_EMAC_RX              1       /* Ethernet MAC receive or HOSTDP */
  15 #define CH_EMAC_HOSTDP          1       /* Ethernet MAC receive or HOSTDP */
  16 #define CH_EMAC_TX              2       /* Ethernet MAC transmit or NFC */
  17 #define CH_SPORT0_RX            3       /* SPORT0 receive */
  18 #define CH_SPORT0_TX            4       /* SPORT0 transmit */
  19 #define CH_SPORT1_RX            5       /* SPORT1 receive */
  20 #define CH_SPORT1_TX            6       /* SPORT1 transmit */
  21 #define CH_SPI                  7       /* SPI transmit/receive */
  22 #define CH_UART0_RX             8       /* UART0 receive */
  23 #define CH_UART0_TX             9       /* UART0 transmit */
  24 #define CH_UART1_RX             10      /* UART1 receive */
  25 #define CH_UART1_TX             11      /* UART1 transmit */
  26
  27 #define CH_MEM_STREAM0_DEST     12      /* TX */
  28 #define CH_MEM_STREAM0_SRC      13      /* RX */
  29 #define CH_MEM_STREAM1_DEST     14      /* TX */
  30 #define CH_MEM_STREAM1_SRC      15      /* RX */
  31
  32 #if defined(CONFIG_BF527_NAND_D_PORTF)
  33 #define CH_NFC                  CH_PPI  /* PPI receive/transmit or NFC */
  34 #elif defined(CONFIG_BF527_NAND_D_PORTH)
  35 #define CH_NFC                  CH_EMAC_TX /* PPI receive/transmit or NFC */
  36 #endif
  37
  38 #endif