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74 lines
2.2 KiB
74 lines
2.2 KiB
# SPDX-License-Identifier: GPL-2.0 |
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menu "DMA support" |
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config SH_DMA |
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bool "SuperH on-chip DMA controller (DMAC) support" |
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depends on CPU_SH3 || CPU_SH4 |
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default n |
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config SH_DMA_IRQ_MULTI |
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bool |
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depends on SH_DMA |
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default y if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7751 || \ |
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CPU_SUBTYPE_SH7750S || CPU_SUBTYPE_SH7750R || \ |
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CPU_SUBTYPE_SH7751R || CPU_SUBTYPE_SH7091 || \ |
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CPU_SUBTYPE_SH7763 || CPU_SUBTYPE_SH7780 || \ |
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CPU_SUBTYPE_SH7785 || CPU_SUBTYPE_SH7760 |
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config SH_DMA_API |
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depends on SH_DMA |
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bool "SuperH DMA API support" |
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default n |
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help |
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SH_DMA_API always enabled DMA API of used SuperH. |
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If you want to use DMA ENGINE, you must not enable this. |
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Please enable DMA_ENGINE and SH_DMAE. |
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config NR_ONCHIP_DMA_CHANNELS |
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int |
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depends on SH_DMA |
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default "4" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7751 || \ |
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CPU_SUBTYPE_SH7750S || CPU_SUBTYPE_SH7091 |
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default "8" if CPU_SUBTYPE_SH7750R || CPU_SUBTYPE_SH7751R || \ |
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CPU_SUBTYPE_SH7760 |
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default "12" if CPU_SUBTYPE_SH7723 || CPU_SUBTYPE_SH7780 || \ |
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CPU_SUBTYPE_SH7785 || CPU_SUBTYPE_SH7724 |
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default "6" |
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help |
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This allows you to specify the number of channels that the on-chip |
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DMAC supports. This will be 4 for SH7750/SH7751/Sh7750S/SH7091 and 8 for the |
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SH7750R/SH7751R/SH7760, 12 for the SH7723/SH7780/SH7785/SH7724, default is 6. |
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config SH_DMABRG |
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bool "SH7760 DMABRG support" |
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depends on CPU_SUBTYPE_SH7760 |
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help |
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The DMABRG does data transfers from main memory to Audio/USB units |
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of the SH7760. |
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Say Y if you want to use Audio/USB DMA on your SH7760 board. |
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config PVR2_DMA |
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tristate "PowerVR 2 DMAC support" |
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depends on SH_DREAMCAST && SH_DMA |
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help |
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Selecting this will enable support for the PVR2 DMA controller. |
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As this chains off of the on-chip DMAC, that must also be |
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enabled by default. |
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This is primarily used by the pvr2fb framebuffer driver for |
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certain optimizations, but is not necessary for functionality. |
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If in doubt, say N. |
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config G2_DMA |
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tristate "G2 Bus DMA support" |
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depends on SH_DREAMCAST && SH_DMA_API |
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help |
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This enables support for the DMA controller for the Dreamcast's |
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G2 bus. Drivers that want this will generally enable this on |
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their own. |
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If in doubt, say N. |
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endmenu
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