7 bool "SuperH on-chip DMA controller (DMAC) support"
8 depends on CPU_SH3 || CPU_SH4
12 config SH_DMA_IRQ_MULTI
15 default y if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7751 || \
16 CPU_SUBTYPE_SH7750S || CPU_SUBTYPE_SH7750R || CPU_SUBTYPE_SH7751R || \
17 CPU_SUBTYPE_SH7091 || CPU_SUBTYPE_SH7763 || CPU_SUBTYPE_SH7764 || \
18 CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
20 config NR_ONCHIP_DMA_CHANNELS
23 default "4" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7750S
24 default "8" if CPU_SUBTYPE_SH7750R || CPU_SUBTYPE_SH7751R || CPU_SUBTYPE_SH7760
25 default "12" if CPU_SUBTYPE_SH7723 || CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
28 This allows you to specify the number of channels that the on-chip
29 DMAC supports. This will be 4 for SH7750/SH7751 and 8 for the
32 config NR_DMA_CHANNELS_BOOL
34 bool "Override default number of maximum DMA channels"
36 This allows you to forcibly update the maximum number of supported
37 DMA channels for a given board. If this is unset, this will default
38 to the number of channels that the on-chip DMAC has.
40 config NR_DMA_CHANNELS
41 int "Maximum number of DMA channels"
42 depends on SH_DMA && NR_DMA_CHANNELS_BOOL
43 default NR_ONCHIP_DMA_CHANNELS
45 This allows you to specify the maximum number of DMA channels to
46 support. Setting this to a higher value allows for cascading DMACs
47 with additional channels.
50 bool "SH7760 DMABRG support"
51 depends on CPU_SUBTYPE_SH7760
53 The DMABRG does data transfers from main memory to Audio/USB units
55 Say Y if you want to use Audio/USB DMA on your SH7760 board.