On Mon, Apr 11, 2016 at 6:33 PM, Bryan O'Donoghue <pure.logic@xxxxxxxxxxxxxxxxx> wrote: > On Thu, 2016-04-07 at 23:37 +0300, Andy Shevchenko wrote: > > Preface. I tried this on Galileo and it appears to work. I'll do some > throughput testing to verify but, initially the results are positive :) I submitted (and pushed into my branch) a bit changed version (see my v2). >> + lpss->dma_maxburst = 8; > > Are these dwords ? If those are bytes then the maxburst value looks > small. In the BSP the max burst is 32 bytes. max_burst is in items of given size (here is 32 bytes for memory and 8 bytes for UART). I took this value from Quark BSP, but I'll be happy to adjust to more optimal values. -- With Best Regards, Andy Shevchenko -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html