On 2018-03-08 11:00, Koen Vandeputte wrote: > > > On 2018-02-22 12:44, Felix Fietkau wrote: >> 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? > Bugreport was filed some time ago [1] > No response so far .. Did you send it to the relevant mailing lists as well?
- Felix _______________________________________________ Lede-dev mailing list Lede-dev@lists.infradead.org http://lists.infradead.org/mailman/listinfo/lede-dev
