netdev - Re: Question: Ethernet Phy issues on Colibri IMX8X (imx8qxp)

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Date:   Wed, 10 Aug 2022 09:20:17 +0200
From:   Philipp Rossak <embed3d@...il.com>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        netdev@...r.kernel.org, qiangqing.zhang@....com,
        philipp.rossak@...mulastudent.de
Subject: Re: Question: Ethernet Phy issues on Colibri IMX8X (imx8qxp) - kernel
 5.19



On 10.08.22 03:19, Andrew Lunn wrote:
> On Wed, Aug 10, 2022 at 12:55:58AM +0200, Philipp Rossak wrote:
>> Hi,
>>
>> I currently have a project with a Toradex Colibri IMX8X SOM board whith an
>> onboard Micrel KSZ8041NL Ethernet PHY.
>>
>> The hardware is described in the devictree properly so I expected that the
>> onboard Ethernet with the phy is working.
>>
>> Currently I'm not able to get the link up.
>>
>> I already compared it to the BSP kernel, but I didn't found anything
>> helpful. The BSP kernel is working.
>>
>> Do you know if there is something in the kernel missing and got it running?
> 
> dmesg output might be useful.
> 
> Do you have the micrel driver either built in, or in your initramfs
> image?
> 
> 	Andrew

Hi Andrew,

the driver is built in.

In [1] you find the dmesg log from the 5.19 kernel. I also added the 
DEBUG built flag for the relevant phy and network drivers.

As reference the bsp kernel 5.4.129 kernel [3] works without issues as 
you can see in [2].

Thanks,
Philipp

[1] https://pastebin.com/g4XKw5yY
[2] https://pastebin.com/5t8iAAEu
[3] 
https://git.toradex.com/cgit/linux-toradex.git/tree/?h=toradex_5.4-2.3.x-imx