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Message-ID: <e0d4b397-a8d9-4546-a8a2-14cf07914e64@lunn.ch>
Date: Mon, 22 May 2023 17:15:56 +0200
From: Andrew Lunn <andrew@...n.ch>
To: Francesco Dolcini <francesco@...cini.it>
Cc: Praneeth Bajjuri <praneeth@...com>, Geet Modi <geet.modi@...com>,
	"David S. Miller" <davem@...emloft.net>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Russell King <linux@...linux.org.uk>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	Grygorii Strashko <grygorii.strashko@...com>,
	Dan Murphy <dmurphy@...com>
Subject: Re: DP83867 ethernet PHY regression

On Mon, May 22, 2023 at 04:58:46PM +0200, Francesco Dolcini wrote:
> Hello all,
> commit da9ef50f545f ("net: phy: dp83867: perform soft reset and retain
> established link") introduces a regression on my TI AM62 based board.
> 
> I have a working DTS with Linux TI 5.10 downstream kernel branch, while
> testing the DTS with v6.4-rc in preparation of sending it to the mailing
> list I noticed that ethernet is working only on a cold poweron.

Do you have more details about how it does not work.

Please could you use:

mii-tool -vvv ethX

in both the good and bad state. The register values might give us a
clue.

Thanks
	Andrew

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