xref: /linux/arch/sh/drivers/dma/Kconfig (revision f477a538c14d07f8c45e554c8c5208d588514e98)
1b2441318SGreg Kroah-Hartman# SPDX-License-Identifier: GPL-2.0
21da177e4SLinus Torvaldsmenu "DMA support"
31da177e4SLinus Torvalds
41da177e4SLinus Torvalds
5fc467a26SManuel Laussconfig SH_DMA
6fc467a26SManuel Lauss	bool "SuperH on-chip DMA controller (DMAC) support"
73e767833SPaul Mundt	depends on CPU_SH3 || CPU_SH4
8fc467a26SManuel Lauss	default n
91da177e4SLinus Torvalds
10988f831dSNobuhiro Iwamatsuconfig SH_DMA_IRQ_MULTI
11988f831dSNobuhiro Iwamatsu	bool
12988f831dSNobuhiro Iwamatsu	depends on SH_DMA
13988f831dSNobuhiro Iwamatsu	default y if CPU_SUBTYPE_SH7750  || CPU_SUBTYPE_SH7751  || \
14a27873cdSPaul Mundt		     CPU_SUBTYPE_SH7750S || CPU_SUBTYPE_SH7750R || \
15a27873cdSPaul Mundt		     CPU_SUBTYPE_SH7751R || CPU_SUBTYPE_SH7091  || \
16455f9726SRichard Weinberger		     CPU_SUBTYPE_SH7763  || CPU_SUBTYPE_SH7780  || \
17455f9726SRichard Weinberger		     CPU_SUBTYPE_SH7785  || CPU_SUBTYPE_SH7760
18988f831dSNobuhiro Iwamatsu
19d8902adcSNobuhiro Iwamatsuconfig SH_DMA_API
20d8902adcSNobuhiro Iwamatsu	depends on SH_DMA
21d8902adcSNobuhiro Iwamatsu	bool "SuperH DMA API support"
22d8902adcSNobuhiro Iwamatsu	default n
23d8902adcSNobuhiro Iwamatsu	help
24d8902adcSNobuhiro Iwamatsu	  SH_DMA_API always enabled DMA API of used SuperH.
25d8902adcSNobuhiro Iwamatsu	  If you want to use DMA ENGINE, you must not enable this.
26d8902adcSNobuhiro Iwamatsu	  Please enable DMA_ENGINE and SH_DMAE.
27d8902adcSNobuhiro Iwamatsu
281da177e4SLinus Torvaldsconfig NR_ONCHIP_DMA_CHANNELS
29fc100202SPaul Mundt	int
301da177e4SLinus Torvalds	depends on SH_DMA
31a27873cdSPaul Mundt	default "4" if CPU_SUBTYPE_SH7750  || CPU_SUBTYPE_SH7751  || \
32a27873cdSPaul Mundt		       CPU_SUBTYPE_SH7750S || CPU_SUBTYPE_SH7091
33a27873cdSPaul Mundt	default "8" if CPU_SUBTYPE_SH7750R || CPU_SUBTYPE_SH7751R || \
34a27873cdSPaul Mundt		       CPU_SUBTYPE_SH7760
35a27873cdSPaul Mundt	default "12" if CPU_SUBTYPE_SH7723 || CPU_SUBTYPE_SH7780  || \
3624d76195SKuninori Morimoto			CPU_SUBTYPE_SH7785 || CPU_SUBTYPE_SH7724
3771b973a4SNobuhiro Iwamatsu	default "6"
381da177e4SLinus Torvalds	help
391da177e4SLinus Torvalds	  This allows you to specify the number of channels that the on-chip
4024d76195SKuninori Morimoto	  DMAC supports. This will be 4 for SH7750/SH7751/Sh7750S/SH7091 and 8 for the
4124d76195SKuninori Morimoto	  SH7750R/SH7751R/SH7760, 12 for the SH7723/SH7780/SH7785/SH7724, default is 6.
421da177e4SLinus Torvalds
43fc467a26SManuel Laussconfig SH_DMABRG
44fc467a26SManuel Lauss	bool "SH7760 DMABRG support"
45fc467a26SManuel Lauss	depends on CPU_SUBTYPE_SH7760
46fc467a26SManuel Lauss	help
47fc467a26SManuel Lauss	  The DMABRG does data transfers from main memory to Audio/USB units
48fc467a26SManuel Lauss	  of the SH7760.
49fc467a26SManuel Lauss	  Say Y if you want to use Audio/USB DMA on your SH7760 board.
50fc467a26SManuel Lauss
51da62e71dSPaul Mundtconfig PVR2_DMA
52da62e71dSPaul Mundt	tristate "PowerVR 2 DMAC support"
53da62e71dSPaul Mundt	depends on SH_DREAMCAST && SH_DMA
54da62e71dSPaul Mundt	help
55da62e71dSPaul Mundt	  Selecting this will enable support for the PVR2 DMA controller.
56da62e71dSPaul Mundt	  As this chains off of the on-chip DMAC, that must also be
57da62e71dSPaul Mundt	  enabled by default.
58da62e71dSPaul Mundt
59da62e71dSPaul Mundt	  This is primarily used by the pvr2fb framebuffer driver for
60da62e71dSPaul Mundt	  certain optimizations, but is not necessary for functionality.
61da62e71dSPaul Mundt
62da62e71dSPaul Mundt	  If in doubt, say N.
63da62e71dSPaul Mundt
6440f49e7eSPaul Mundtconfig G2_DMA
6540f49e7eSPaul Mundt	tristate "G2 Bus DMA support"
66*f477a538SNecip Fazil Yildiran	depends on SH_DREAMCAST && SH_DMA_API
6740f49e7eSPaul Mundt	help
6840f49e7eSPaul Mundt	  This enables support for the DMA controller for the Dreamcast's
6940f49e7eSPaul Mundt	  G2 bus. Drivers that want this will generally enable this on
7040f49e7eSPaul Mundt	  their own.
7140f49e7eSPaul Mundt
7240f49e7eSPaul Mundt	  If in doubt, say N.
7340f49e7eSPaul Mundt
741da177e4SLinus Torvaldsendmenu
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