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kernel/linux-rt-4.4.41/arch/blackfin/mach-bf527/include/mach/dma.h 1.2 KB
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  /* mach/dma.h - arch-specific DMA defines
   *
   * Copyright 2004-2008 Analog Devices Inc.
   *
   * Licensed under the GPL-2 or later.
   */
  
  #ifndef _MACH_DMA_H_
  #define _MACH_DMA_H_
  
  #define MAX_DMA_CHANNELS 16
  
  #define CH_PPI 			0	/* PPI receive/transmit or NFC */
  #define CH_EMAC_RX 		1	/* Ethernet MAC receive or HOSTDP */
  #define CH_EMAC_HOSTDP 		1	/* Ethernet MAC receive or HOSTDP */
  #define CH_EMAC_TX 		2	/* Ethernet MAC transmit or NFC */
  #define CH_SPORT0_RX 		3	/* SPORT0 receive */
  #define CH_SPORT0_TX 		4	/* SPORT0 transmit */
  #define CH_SPORT1_RX 		5	/* SPORT1 receive */
  #define CH_SPORT1_TX 		6	/* SPORT1 transmit */
  #define CH_SPI 			7	/* SPI transmit/receive */
  #define CH_UART0_RX 		8	/* UART0 receive */
  #define CH_UART0_TX 		9	/* UART0 transmit */
  #define CH_UART1_RX 		10	/* UART1 receive */
  #define CH_UART1_TX 		11	/* UART1 transmit */
  
  #define CH_MEM_STREAM0_DEST	12	/* TX */
  #define CH_MEM_STREAM0_SRC  	13	/* RX */
  #define CH_MEM_STREAM1_DEST	14	/* TX */
  #define CH_MEM_STREAM1_SRC 	15	/* RX */
  
  #if defined(CONFIG_BF527_NAND_D_PORTF)
  #define CH_NFC			CH_PPI	/* PPI receive/transmit or NFC */
  #elif defined(CONFIG_BF527_NAND_D_PORTH)
  #define CH_NFC			CH_EMAC_TX /* PPI receive/transmit or NFC */
  #endif
  
  #endif