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Linux/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

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