netdev - Re: [PATCH] net: macb: Fix regression breaking non-MDIO fixed-link PHYs

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Message-ID: <20180815023233.GD11610@lunn.ch>
Date:   Wed, 15 Aug 2018 04:32:33 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>
Cc:     Ahmad Fatoum <a.fatoum@...gutronix.de>,
        "David S. Miller" <davem@...emloft.net>,
        Nicolas Ferre <nicolas.ferre@...rochip.com>,
        netdev@...r.kernel.org, mdf@...nel.org, stable@...r.kernel.org,
        kernel@...gutronix.de, Brad Mouring <brad.mouring@...com>,
        Florian Fainelli <f.fainelli@...il.com>
Subject: Re: [PATCH] net: macb: Fix regression breaking non-MDIO fixed-link
 PHYs

On Tue, Aug 14, 2018 at 05:58:12PM +0200, Uwe Kleine-König wrote:
> Hello Ahmad,
> 
> 
> On Tue, Aug 14, 2018 at 04:12:40PM +0200, Ahmad Fatoum wrote:
> > The referenced commit broke initializing macb on the EVB-KSZ9477 eval board.
> > There, of_mdiobus_register was called even for the fixed-link representing
> > the SPI-connected switch PHY, with the result that the driver attempts to
> > enumerate PHYs on a non-existent MDIO bus:
> > 
> > 	libphy: MACB_mii_bus: probed
> > 	mdio_bus f0028000.ethernet-ffffffff: fixed-link has invalid PHY address
> > 	mdio_bus f0028000.ethernet-ffffffff: scan phy fixed-link at address 0
> >         [snip]
> > 	mdio_bus f0028000.ethernet-ffffffff: scan phy fixed-link at address 31
> > 	macb f0028000.ethernet: broken fixed-link specification
> > 
> > Cc: <stable@...r.kernel.org>
> > Fixes: 739de9a1563a ("net: macb: Reorganize macb_mii bringup")
> 
> I added the people involved in 739de9a1563a to Cc. Maybe they want to
> comment. So not stripping the remaining part of the original mail.

Thanks Uwe for Cc: in my.

Ahmed, where is the device tree for the EVB-KSZ9477?

Thanks
	Andrew