[PATCH 11/13] arm: dts: dra7: add DMA properties for UART
Sebastian Andrzej Siewior
bigeasy at linutronix.de
Thu Nov 13 10:34:09 PST 2014
On 11/05/2014 08:43 PM, Lennart Sorensen wrote:
> I managed to get something dma related on uart3. But it isn't happy:
> [ 95.577401] DMA misaligned error with device 53
> repeated many times.
> I wonder if the dma support isn't quite working for the omap572x yet in
> this tree (ti's 3.12.y tree), or maybe it is picky and the driver still
> needs a bit of work.
misaligned dma? I haven't seen any alignment requirement for SDMA/EDMA
and I haven't seen this error on beagle board, am335x-evm or dra7-evm.
> I have had no issues on uart7 and 8 without dma.
So basically what you are saying is that DMA (no matter which channel)
gives you this error and without DMA it works fine?
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