arch/sh/drivers/dma/Kconfig

   1 # SPDX-License-Identifier: GPL-2.0
   2 menu "DMA support"
   3
   4
   5 config SH_DMA
   6         bool "SuperH on-chip DMA controller (DMAC) support"
   7         depends on CPU_SH3 || CPU_SH4
   8         default n
   9
  10 config SH_DMA_IRQ_MULTI
  11         bool
  12         depends on SH_DMA
  13         default y if CPU_SUBTYPE_SH7750  || CPU_SUBTYPE_SH7751  || \
  14                      CPU_SUBTYPE_SH7750S || CPU_SUBTYPE_SH7750R || \
  15                      CPU_SUBTYPE_SH7751R || CPU_SUBTYPE_SH7091  || \
  16                      CPU_SUBTYPE_SH7763  || CPU_SUBTYPE_SH7780  || \
  17                      CPU_SUBTYPE_SH7785  || CPU_SUBTYPE_SH7760
  18
  19 config SH_DMA_API
  20         depends on SH_DMA
  21         bool "SuperH DMA API support"
  22         default n
  23         help
  24           SH_DMA_API always enabled DMA API of used SuperH.
  25           If you want to use DMA ENGINE, you must not enable this.
  26           Please enable DMA_ENGINE and SH_DMAE.
  27
  28 config NR_ONCHIP_DMA_CHANNELS
  29         int
  30         depends on SH_DMA
  31         default "4" if CPU_SUBTYPE_SH7750  || CPU_SUBTYPE_SH7751  || \
  32                        CPU_SUBTYPE_SH7750S || CPU_SUBTYPE_SH7091
  33         default "8" if CPU_SUBTYPE_SH7750R || CPU_SUBTYPE_SH7751R || \
  34                        CPU_SUBTYPE_SH7760
  35         default "12" if CPU_SUBTYPE_SH7723 || CPU_SUBTYPE_SH7780  || \
  36                         CPU_SUBTYPE_SH7785 || CPU_SUBTYPE_SH7724
  37         default "6"
  38         help
  39           This allows you to specify the number of channels that the on-chip
  40           DMAC supports. This will be 4 for SH7750/SH7751/Sh7750S/SH7091 and 8 for the
  41           SH7750R/SH7751R/SH7760, 12 for the SH7723/SH7780/SH7785/SH7724, default is 6.
  42
  43 config SH_DMABRG
  44         bool "SH7760 DMABRG support"
  45         depends on CPU_SUBTYPE_SH7760
  46         help
  47           The DMABRG does data transfers from main memory to Audio/USB units
  48           of the SH7760.
  49           Say Y if you want to use Audio/USB DMA on your SH7760 board.
  50
  51 config PVR2_DMA
  52         tristate "PowerVR 2 DMAC support"
  53         depends on SH_DREAMCAST && SH_DMA
  54         help
  55           Selecting this will enable support for the PVR2 DMA controller.
  56           As this chains off of the on-chip DMAC, that must also be
  57           enabled by default.
  58
  59           This is primarily used by the pvr2fb framebuffer driver for
  60           certain optimizations, but is not necessary for functionality.
  61
  62           If in doubt, say N.
  63
  64 config G2_DMA
  65         tristate "G2 Bus DMA support"
  66         depends on SH_DREAMCAST
  67         select SH_DMA_API
  68         help
  69           This enables support for the DMA controller for the Dreamcast's
  70           G2 bus. Drivers that want this will generally enable this on
  71           their own.
  72
  73           If in doubt, say N.
  74
  75 endmenu