Re: No network for SolidRun LX2160A Clearfog CX with kernel 6.12.113

[Vincent Jardin <vjardin@free.fr>]

Hi Oliver,

Le 30/10/26 11:32, Fabio Estevam a écrit :
> Hi Oliver,
> 
> On Fri, Oct 30, 2026 at 8:48 AM Oliver Smith <osmith@sysmocom.de> wrote:
> >
> > Hi,
> >
> > on a SolidRun LX2160A Clearfog CX machine I've upgraded from 6.12.101 to
> > 6.12.113 in Debian 13, and with that kernel there is no eth0 after boot.
> > When downgrading to 6.12.101, it is there again.
> >
> > I suspect this is a regression from dts changes in
> > arch/arm64/boot/dts/freescale as there were a few for lx2160a:
> 
> Run git bisect between 6.12.101 and 6.12.113 to find the exact commit
> that caused the regression.

then, on the board, check, analyze and provide the outputs if needed of:

uname -r; cat /proc/device-tree/model; echo
ip -br link
dmesg | grep -i -e fsl-mc -e dpaa2 -e dpmac -e dprc
cat /sys/kernel/debug/devices_deferred
ls /sys/bus/fsl-mc/devices/
busybox devmem 0x08340008 32 # or equivalent for your Debian

From U-Boot, before it boots Linux:

md.l 0x08340008 1
printenv mcinitcmd bootcmd

0x08340008 is the General Status Register (GSR) of the MC

my 2 cents,
  Vincent