[BUG]: imx6q (wandboard): Very unstable ethernet since kernel 3.16

[Troy Kisky]

On 8/8/2014 3:51 PM, George Joseph wrote:
> On Fri, Aug 8, 2014 at 4:02 PM, Troy Kisky <troy.kisky at boundarydevices.com
> <mailto:troy.kisky at boundarydevices.com>> wrote:
> 
>     On 8/8/2014 7:58 AM, Thomas Scheiblauer wrote:
>     >
>     >
>     > Indeed, commenting out these 2 lines in
>     > arch/arm/boot/dts/imx6qdl-wandboard.dtsi fixes my problem without having
>     > to increase TX_RING_SIZE.
>     > Thank you very much!
>     >
>     Could you also please checkout commit
> 
>     commit 9fc77821b17155c6e0ab50b1e1dd80c2b0e63e98
>     Author: Sascha Silbe <x-linux at infra-silbe.de <mailto:x-linux at infra-silbe.de>>
>     Date:   Thu Feb 6 23:24:13 2014 +0100
> 
>         ARM: dts: imx6qdl-wandboard: use GPIO_6 for FEC interrupt
> 
> 
>     and see if it also shows ethernet instabilities?
> 
> 
> I'm confused by the references to GPIO_6 and GPIO1_IO06 as it relates to the wandboard.   According
> to the schematic for both the rev B1 and C1, the GPIO_6 PAD is physically connected to pin 30 on the
> camera interface and according to the dtb tree, GPIO1_IO06 isn't mapped to any PAD.
> 
> This kinda fits with my own observation which is that Ethernet is working fine (40MB/s sustained)
> regardless of whether fec is using "gpio1 6" and "intc 0 119" for extended interrupts or the default
> "intc 0 118" and "intc 0 119".   Otherwise stock 3.16.0 on WB Quad C1.
> 
Are you using a wandboard also?   With or without camera plugged in?


Same question for Thomas. Do you have a camera?


Troy