diff options
| author | Manuel Lauss <mano@roarinelk.homelinux.net> | 2007-05-09 17:36:15 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2007-05-09 17:36:15 +0900 |
| commit | fc467a2623029976899261d6d379779c950ddcba (patch) | |
| tree | 16b1721c800bd907207723f8031fb8601811b584 /arch/sh/drivers/dma/Kconfig | |
| parent | 57be2b484a417bffae66359b9b89e7239480b729 (diff) | |
| download | linux-fc467a2623029976899261d6d379779c950ddcba.tar.bz2 | |
sh: SH7760 DMABRG support.
The DMABRG is a special DMA unit within the SH7760 which does data
transfers from main memory to Audio units and USB shared memory.
It has 3 IRQ lines which generate 10 events, which have to be masked
unmasked and acked in a single 32bit register. It works independently
from the tradition SH DMAC, but blocks usage of DMAC channel 0.
This patch adds 2 functions to associate callbacks with DMABRG events
and initialization.
Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/drivers/dma/Kconfig')
| -rw-r--r-- | arch/sh/drivers/dma/Kconfig | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/arch/sh/drivers/dma/Kconfig b/arch/sh/drivers/dma/Kconfig index defc13c37d48..99935f9daf4b 100644 --- a/arch/sh/drivers/dma/Kconfig +++ b/arch/sh/drivers/dma/Kconfig @@ -1,12 +1,12 @@ menu "DMA support" -config SH_DMA - bool "DMA controller (DMAC) support" - help - Selecting this option will provide same API as PC's Direct Memory - Access Controller(8237A) for SuperH DMAC. +config SH_DMA_API + bool - If unsure, say N. +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 @@ -53,4 +53,12 @@ config DMA_PAGE_OPS_CHANNEL in case channel 3 is unavailable. On the SH4, channels 1,2, and 3 are dual-address capable. +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 |