On 2018-02-22 12:20, Koen Vandeputte wrote: > When this target got updated to 4.14, this patch got removed to > re-evaluate if it was still needed. > > Extensive testing now shows this issue is still present. > Let's re-add the patch to fix it for now. > > As the uart bus is very low bandwidth .. performance impact is negligible. > > Boot log: > > [ 22.513051] imx-uart 2020000.serial: DMA transaction error. > [ 22.522721] imx-uart 2020000.serial: DMA transaction error. > > As a sidenote: > The patch mentiones an issue with RS485, but the bootlog > errors above were recorded with the uart ports in standard RS232 mode. > > Compile/Run-tested on imx6/GW5200 > > Signed-off-by: Koen Vandeputte <koen.vandepu...@ncentric.com> Could you please also report this issue upstream and send a patch that makes it possible to disable DMA via DT and/or kconfig?
Thanks, - Felix _______________________________________________ Lede-dev mailing list Lede-dev@lists.infradead.org http://lists.infradead.org/mailman/listinfo/lede-dev
