linux-kernel - Re: [PATCH V1] arm64: dts: imx8mp: fix FEC can't work when attached to generic phy driver

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Date:   Thu, 18 Mar 2021 08:15:31 -0300
From:   Fabio Estevam <festevam@...il.com>
To:     Joakim Zhang <qiangqing.zhang@....com>
Cc:     Shawn Guo <shawnguo@...nel.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "s.hauer@...gutronix.de" <s.hauer@...gutronix.de>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        dl-linux-imx <linux-imx@....com>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH V1] arm64: dts: imx8mp: fix FEC can't work when attached
 to generic phy driver

Hi Joakim,

On Thu, Mar 18, 2021 at 8:04 AM Joakim Zhang <qiangqing.zhang@....com> wrote:

> Hi Shawn,
>
> Seems you prefer to 2, is it possible to buildin Realtek PHY(CONFIG_REALTEK_PHY=y)? If not, it is going to be tricky.

Yes, we should select the driver as built-in and describe the reset
timing requirements as per the datasheet.

I have just sent two patches to address the issue you reported. Please
test them.