openwrtv3/target
Koen Vandeputte efb362cd93 imx6: disable dma on uart
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.vandeputte@ncentric.com>
2018-02-22 12:46:49 +01:00
..
imagebuilder imagebuilder: fix reference to removed VERSION_SED variable 2018-02-02 14:41:35 +01:00
linux imx6: disable dma on uart 2018-02-22 12:46:49 +01:00
sdk sdk: change base feed fallback to git.openwrt.org 2018-01-11 18:20:07 +01:00
toolchain merge: etc: update remaining files 2017-12-08 19:41:18 +01:00
Config.in config: set ARCH if powerpc64 is selected in the configuration 2017-10-24 13:24:04 +02:00
Makefile build: make <subdir>/install opt-in, use it for target/ only 2017-02-09 13:51:35 +01:00