kernel/arch/sh/drivers/dma/Kconfig

   1 menu "DMA support"
   2
   3
   4 config SH_DMA
   5         bool "SuperH on-chip DMA controller (DMAC) support"
   6         depends on CPU_SH3 || CPU_SH4
   7         default n
   8
   9 config SH_DMA_IRQ_MULTI
  10         bool
  11         depends on SH_DMA
  12         default y if CPU_SUBTYPE_SH7750  || CPU_SUBTYPE_SH7751  || \
  13                      CPU_SUBTYPE_SH7750S || CPU_SUBTYPE_SH7750R || \
  14                      CPU_SUBTYPE_SH7751R || CPU_SUBTYPE_SH7091  || \
  15                      CPU_SUBTYPE_SH7763  || CPU_SUBTYPE_SH7780  || \
  16                      CPU_SUBTYPE_SH7785  || CPU_SUBTYPE_SH7760
  17
  18 config SH_DMA_API
  19         depends on SH_DMA
  20         bool "SuperH DMA API support"
  21         default n
  22         help
  23           SH_DMA_API always enabled DMA API of used SuperH.
  24           If you want to use DMA ENGINE, you must not enable this.
  25           Please enable DMA_ENGINE and SH_DMAE.
  26
  27 config NR_ONCHIP_DMA_CHANNELS
  28         int
  29         depends on SH_DMA
  30         default "4" if CPU_SUBTYPE_SH7750  || CPU_SUBTYPE_SH7751  || \
  31                        CPU_SUBTYPE_SH7750S || CPU_SUBTYPE_SH7091
  32         default "8" if CPU_SUBTYPE_SH7750R || CPU_SUBTYPE_SH7751R || \
  33                        CPU_SUBTYPE_SH7760
  34         default "12" if CPU_SUBTYPE_SH7723 || CPU_SUBTYPE_SH7780  || \
  35                         CPU_SUBTYPE_SH7785 || CPU_SUBTYPE_SH7724
  36         default "6"
  37         help
  38           This allows you to specify the number of channels that the on-chip
  39           DMAC supports. This will be 4 for SH7750/SH7751/Sh7750S/SH7091 and 8 for the
  40           SH7750R/SH7751R/SH7760, 12 for the SH7723/SH7780/SH7785/SH7724, default is 6.
  41
  42 config SH_DMABRG
  43         bool "SH7760 DMABRG support"
  44         depends on CPU_SUBTYPE_SH7760
  45         help
  46           The DMABRG does data transfers from main memory to Audio/USB units
  47           of the SH7760.
  48           Say Y if you want to use Audio/USB DMA on your SH7760 board.
  49
  50 config PVR2_DMA
  51         tristate "PowerVR 2 DMAC support"
  52         depends on SH_DREAMCAST && SH_DMA
  53         help
  54           Selecting this will enable support for the PVR2 DMA controller.
  55           As this chains off of the on-chip DMAC, that must also be
  56           enabled by default.
  57
  58           This is primarily used by the pvr2fb framebuffer driver for
  59           certain optimizations, but is not necessary for functionality.
  60
  61           If in doubt, say N.
  62
  63 config G2_DMA
  64         tristate "G2 Bus DMA support"
  65         depends on SH_DREAMCAST
  66         select SH_DMA_API
  67         help
  68           This enables support for the DMA controller for the Dreamcast's
  69           G2 bus. Drivers that want this will generally enable this on
  70           their own.
  71
  72           If in doubt, say N.
  73
  74 endmenu