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

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Date:   Wed, 10 Aug 2022 08:49:01 +0000
From:   Aisheng Dong <aisheng.dong@....com>
To:     Marcel Ziswiler <marcel.ziswiler@...adex.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "embed3d@...il.com" <embed3d@...il.com>,
        Viorel Suman <viorel.suman@....com>,
        Frank Li <frank.li@....com>, Clark Wang <xiaoning.wang@....com>
CC:     "philipp.rossak@...mulastudent.de" <philipp.rossak@...mulastudent.de>,
        "G.N. Zhou" <guoniu.zhou@....com>,
        "andrew@...n.ch" <andrew@...n.ch>
Subject: RE: Question: Ethernet Phy issues on Colibri IMX8X (imx8qxp) - kernel
 5.19

> From: Marcel Ziswiler <marcel.ziswiler@...adex.com>
> Sent: 2022年8月10日 16:06
> Subject: Re: Question: Ethernet Phy issues on Colibri IMX8X (imx8qxp) - kernel
> 5.19
> 
> Sali Philipp
> 
> On Wed, 2022-08-10 at 00:55 +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?
> 
> Yes, you may just revert the following commit babfaa9556d7 ("clk: imx: scu:
> add more scu clocks")
> 
> Alternatively, just commenting out the following single line also helps:
> 
> https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgit.kern
> el.org%2Fpub%2Fscm%2Flinux%2Fkernel%2Fgit%2Ftorvalds%2Flinux.git%2Ftr
> ee%2Fdrivers%2Fclk%2Fimx%2Fclk-imx8qxp.c%3Fh%3Dv5.19%23n172&amp;d
> ata=05%7C01%7Caisheng.dong%40nxp.com%7Cf87519cdf73f46b3873208da7
> aa722fc%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C1%7C637957155
> 515733848%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjo
> iV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&amp;sda
> ta=f4bjWadfj3yMFwpLc0nlaiSdUXEPMvk6riRm%2BxlhxPo%3D&amp;reserved=
> 0
> 
> I just found this out about two weeks ago before I went to vacation and since
> have to find out with NXP what exactly the idea of this clocking/SCFW stuff is
> related to our hardware.
> 
> @NXP: If any of you guys could shed some light that would be much
> appreciated. Thanks!
> 

Copy Viorel, Frank Li, Clark to comment.

Regards
Aisheng