openwrt/target/linux/imx6
Koen Vandeputte 3b4241071d imx6: disable UART dma
Fixes these prints on boot:

[   13.785600] imx-uart 2020000.serial: DMA transaction error.
[   13.793134] imx-uart 2020000.serial: DMA transaction error.
[   13.798721] imx-uart 2020000.serial: DMA transaction error.

Based on following upstream patch by Tim Harvey (Gateworks):

80a01b6582

TX complete DMA messages are getting missed.
This is also currently an issue in mainline.
For now we will disable DMA in serial/imx.c.

This resolves an issue encountered with RS485 transmit.

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
2017-05-31 08:45:26 +02:00
..
base-files imx6: ventana: add GW553x board identification 2017-04-26 11:52:55 +02:00
files-4.9/arch/arm/boot/dts imx6: add support for GW5904 2017-03-12 15:06:51 +01:00
image imx6: add support for GW5904 2017-03-12 15:06:51 +01:00
patches-4.9 imx6: disable UART dma 2017-05-31 08:45:26 +02:00
profiles imx6: enable the chipidea usb driver in the kernel config instead of packaging it 2017-01-10 12:10:20 +01:00
Makefile imx6: move to Linux 4.9 kernel 2017-02-11 15:38:11 +01:00
config-4.9 imx6: disable MSI interrupts 2017-04-26 11:52:55 +02:00