diff options
Diffstat (limited to 'arch/sh/drivers/dma/Kconfig')
| -rw-r--r-- | arch/sh/drivers/dma/Kconfig | 78 |
1 files changed, 52 insertions, 26 deletions
diff --git a/arch/sh/drivers/dma/Kconfig b/arch/sh/drivers/dma/Kconfig index 01936368b8b..cfd5b90a862 100644 --- a/arch/sh/drivers/dma/Kconfig +++ b/arch/sh/drivers/dma/Kconfig @@ -1,42 +1,44 @@ menu "DMA support" -config SH_DMA_API - bool config SH_DMA bool "SuperH on-chip DMA controller (DMAC) support" depends on CPU_SH3 || CPU_SH4 - select SH_DMA_API default n -config NR_ONCHIP_DMA_CHANNELS - int +config SH_DMA_IRQ_MULTI + bool depends on SH_DMA - default "6" if CPU_SUBTYPE_SH7720 || CPU_SUBTYPE_SH7721 - 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. + default y if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7751 || \ + CPU_SUBTYPE_SH7750S || CPU_SUBTYPE_SH7750R || \ + CPU_SUBTYPE_SH7751R || CPU_SUBTYPE_SH7091 || \ + CPU_SUBTYPE_SH7763 || CPU_SUBTYPE_SH7764 || \ + CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 || \ + CPU_SUBTYPE_SH7760 -config NR_DMA_CHANNELS_BOOL +config SH_DMA_API depends on SH_DMA - bool "Override default number of maximum DMA channels" + bool "SuperH DMA API support" + default n 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 + SH_DMA_API always enabled DMA API of used SuperH. + If you want to use DMA ENGINE, you must not enable this. + Please enable DMA_ENGINE and SH_DMAE. + +config NR_ONCHIP_DMA_CHANNELS + int + depends on SH_DMA + default "4" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7751 || \ + CPU_SUBTYPE_SH7750S || CPU_SUBTYPE_SH7091 + default "8" if CPU_SUBTYPE_SH7750R || CPU_SUBTYPE_SH7751R || \ + CPU_SUBTYPE_SH7760 + default "12" if CPU_SUBTYPE_SH7723 || CPU_SUBTYPE_SH7780 || \ + CPU_SUBTYPE_SH7785 || CPU_SUBTYPE_SH7724 + default "6" 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. + This allows you to specify the number of channels that the on-chip + DMAC supports. This will be 4 for SH7750/SH7751/Sh7750S/SH7091 and 8 for the + SH7750R/SH7751R/SH7760, 12 for the SH7723/SH7780/SH7785/SH7724, default is 6. config SH_DMABRG bool "SH7760 DMABRG support" @@ -46,4 +48,28 @@ config SH_DMABRG of the SH7760. Say Y if you want to use Audio/USB DMA on your SH7760 board. +config PVR2_DMA + tristate "PowerVR 2 DMAC support" + depends on SH_DREAMCAST && SH_DMA + help + Selecting this will enable support for the PVR2 DMA controller. + As this chains off of the on-chip DMAC, that must also be + enabled by default. + + This is primarily used by the pvr2fb framebuffer driver for + certain optimizations, but is not necessary for functionality. + + If in doubt, say N. + +config G2_DMA + tristate "G2 Bus DMA support" + depends on SH_DREAMCAST + select SH_DMA_API + help + This enables support for the DMA controller for the Dreamcast's + G2 bus. Drivers that want this will generally enable this on + their own. + + If in doubt, say N. + endmenu |