Messages in this thread | | | Date | Tue, 15 Jun 2010 20:39:43 +0900 | Subject | Re: [PATCH 06/13] DMAENGINE: driver for the ARM PL080/PL081 PrimeCells | From | Jassi Brar <> |
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On Tue, Jun 15, 2010 at 8:17 PM, Maurus Cuelenaere <mcuelenaere@gmail.com> wrote: > Op 15-06-10 12:45, Jassi Brar schreef: >> On Tue, Jun 15, 2010 at 7:25 PM, Kukjin Kim <kgene.kim@samsung.com> wrote: >>> Linus Walleij wrote: >>>> >>>> This creates a DMAengine driver for the ARM PL080/PL081 PrimeCells >>>> based on the implementation earlier submitted by Peter Pearse. >>>> This is working like a charm for memcpy on the PB11MPCore, but >>>> slave DMA to devices is still not working. >>>> >>>> This DMA controller is used in mostly unmodified form in the ARM >>>> RealView and Versatile platforms, in the ST-Ericsson Nomadik, and >>>> in the ST SPEAr platform. >>>> >>>> It has been converted to use the header from the Samsung PL080 >>>> derivate instead of its own defintions, and can potentially support >>>> several controllers in the same system. >>>> >>>> Cc: Peter Pearse <peter.pearse@arm.com> >>>> Cc: Ben Dooks <ben-linux@fluff.org> >>>> Cc: Kukjin Kim <kgene.kim@samsung.com> >>> >>> Looks good, but please give me some time to test on the board(SMDK6410). >>> If any problem, let you know. Of course no problem, will ack. >> Samsung doesn't use the DMA API, so this driver is unlikely to work. > > It doesn't indeed, but it could be adapted to be a wrapper around the DMA engine API. > Or even better, the drivers could be adapted to use that API. I don't particularly like the idea of making Samsung's drivers use the DMA API. IMHO the S3C dma api is better atm.
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