arch/sh/include/cpu-sh3/cpu/dma.h

   1 #ifndef __ASM_CPU_SH3_DMA_H
   2 #define __ASM_CPU_SH3_DMA_H
   3
   4 #if defined(CONFIG_CPU_SUBTYPE_SH7720) || \
   5     defined(CONFIG_CPU_SUBTYPE_SH7721) || \
   6     defined(CONFIG_CPU_SUBTYPE_SH7710) || \
   7     defined(CONFIG_CPU_SUBTYPE_SH7712)
   8 #define SH_DMAC_BASE0   0xa4010020
   9 #else /* SH7705/06/07/09 */
  10 #define SH_DMAC_BASE0   0xa4000020
  11 #endif
  12
  13 #define DMTE0_IRQ       48
  14 #define DMTE4_IRQ       76
  15
  16 /* Definitions for the SuperH DMAC */
  17 #define TM_BURST        0x00000020
  18 #define TS_8            0x00000000
  19 #define TS_16           0x00000008
  20 #define TS_32           0x00000010
  21 #define TS_128          0x00000018
  22
  23 #define CHCR_TS_MASK    0x18
  24 #define CHCR_TS_SHIFT   3
  25
  26 #define DMAOR_INIT      DMAOR_DME
  27
  28 /*
  29  * The SuperH DMAC supports a number of transmit sizes, we list them here,
  30  * with their respective values as they appear in the CHCR registers.
  31  */
  32 enum {
  33         XMIT_SZ_8BIT,
  34         XMIT_SZ_16BIT,
  35         XMIT_SZ_32BIT,
  36         XMIT_SZ_128BIT,
  37 };
  38
  39 static unsigned int ts_shift[] __maybe_unused = {
  40         [XMIT_SZ_8BIT]          = 0,
  41         [XMIT_SZ_16BIT]         = 1,
  42         [XMIT_SZ_32BIT]         = 2,
  43         [XMIT_SZ_128BIT]        = 4,
  44 };
  45
  46 #endif /* __ASM_CPU_SH3_DMA_H */