Messages in this thread | | | Date | Thu, 30 Aug 2012 21:22:53 +0200 | From | Hans-Christian Egtvedt <> | Subject | Re: [PATCH v2] avr32: at32ap700x: set DMA slave properties for MCI dw_dmac |
| |
Around Fri 31 Aug 2012 01:07:13 +0800 or thereabout, Hein Tibosch wrote: > The MCI makes use of the dw_dmac driver when DMA is being used. > Due to recent changes the driver was broken because: > - the SMS field in the CTLL register received the wrong value 0 > - a patch in dw_dmac (http://lkml.org/lkml/2012/1/18/52) > allowed for 64-bit transfers on the memory side, giving an illegal > value of 3 in the SRC/DST_TR_WIDTH register. > > This patch sets the SMS (Source Master Select) to 1 and limits > the maximum transfer width to 32 bits. > > Note: this can only be applied after my patch: > [PATCH v2 2/2] dw_dmac: max_mem_width limits value for > SRC/DST_TR_WID register > > Signed-off-by: Hein Tibosch <hein_tibosch@yahoo.es>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
<snipp diff>
-- mvh Hans-Christian Egtvedt
| |