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Date:   Fri, 29 Apr 2022 17:15:13 +0200
From:   Francesco Dolcini <>
To:     Fabio Estevam <>
Cc:     Francesco Dolcini <>,
        Joakim Zhang <>,
        Andrew Lunn <>,
        Heiner Kallweit <>,
        Russell King <>,
        netdev <>,
        Jakub Kicinski <>,
        Paolo Abeni <>,
        "David S. Miller" <>,
        Tim Harvey <>
Subject: Re: FEC MDIO read timeout on linkup

On Fri, Apr 22, 2022 at 06:04:00PM +0200, Francesco Dolcini wrote:
> On Fri, Apr 22, 2022 at 12:55:22PM -0300, Fabio Estevam wrote:
> > On Fri, Apr 22, 2022 at 12:26 PM Francesco Dolcini
> > <> wrote:
> > > What I can see from the code is that the timeout is coming from
> > > net/phy/micrel.c:kszphy_handle_interrupt().
> > 
> > For debugging purposes, could you try not to describe the Ethernet PHY
> > irq pin inside imx6qdl-apalis.dtsi?
> Yep, we'll try to see what's going on with polling instead that having the
> interrupt enabled.

So, I was not able to reproduce the issue polling the phy instead of
using interrupt. I gonna investigate more in the direction of a race
condition somewhere, unfortunately I had very limited time to work on
this in the last days.


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