From mboxrd@z Thu Jan 1 00:00:00 1970 From: mcuelenaere@gmail.com (Maurus Cuelenaere) Date: Tue, 15 Jun 2010 13:17:28 +0200 Subject: [PATCH 06/13] DMAENGINE: driver for the ARM PL080/PL081 PrimeCells In-Reply-To: References: <1276270031-1607-1-git-send-email-linus.walleij@stericsson.com> <002001cb0c75$0a54fd00$1efef700$%kim@samsung.com> Message-ID: <4C176148.4020507@gmail.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Op 15-06-10 12:45, Jassi Brar schreef: > On Tue, Jun 15, 2010 at 7:25 PM, Kukjin Kim 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 >>> Cc: Ben Dooks >>> Cc: Kukjin Kim >> >> 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.