| 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647 |
- menu "DMA support"
- config SH_DMA_API
- bool
- config SH_DMA
- bool "SuperH on-chip DMA controller (DMAC) support"
- select SH_DMA_API
- default n
- config NR_ONCHIP_DMA_CHANNELS
- depends on SH_DMA
- int "Number of on-chip DMAC channels"
- default "8" if CPU_SUBTYPE_SH7750R || CPU_SUBTYPE_SH7751R
- default "12" if CPU_SUBTYPE_SH7780
- default "4"
- help
- This allows you to specify the number of channels that the on-chip
- DMAC supports. This will be 4 for SH7750/SH7751 and 8 for the
- SH7750R/SH7751R.
- config NR_DMA_CHANNELS_BOOL
- depends on SH_DMA
- bool "Override default number of maximum DMA channels"
- help
- This allows you to forcibly update the maximum number of supported
- DMA channels for a given board. If this is unset, this will default
- to the number of channels that the on-chip DMAC has.
- config NR_DMA_CHANNELS
- int "Maximum number of DMA channels"
- depends on SH_DMA && NR_DMA_CHANNELS_BOOL
- default NR_ONCHIP_DMA_CHANNELS
- help
- This allows you to specify the maximum number of DMA channels to
- support. Setting this to a higher value allows for cascading DMACs
- with additional channels.
- config SH_DMABRG
- bool "SH7760 DMABRG support"
- depends on CPU_SUBTYPE_SH7760
- help
- The DMABRG does data transfers from main memory to Audio/USB units
- of the SH7760.
- Say Y if you want to use Audio/USB DMA on your SH7760 board.
- endmenu
|
