Re: [PATCH net-next v2 0/3] net: mdio: support dynamic OF device changes

Andrew Lunn <[email protected]> Tue, 4 Aug 2026 20:08:19 +0200
Newsgroups gmane.linux.network,gmane.linux.kernel,gmane.linux.drivers.devicetree
Message-ID <[email protected]>
On Tue, Aug 04, 2026 at 09:10:30AM -0600, James Hilliard wrote:
> On Tue, Aug 4, 2026 at 6:54 AM Andrew Lunn <[email protected]> wrote:
> >
> > > > If this was a hat on top of a SBC, with an EEPROM indicating what the
> > > > hat was, then maybe DT overlays would make sense. But from what you
> > > > have said, this is a fixed PCB design, nothing hot/cold plugable.
> > >
> > > Some H616/H618 boards have the ethernet port on an expansion board:
> > > http://www.orangepi.org/html/hardWare/computerAndMicrocontrollers/details/2W-expansion-board.html
> >
> > I don't see a list of pins which go across the connector. Does the
> > MDIO bus go to the expansion board? Is the PHY on the expansion
> > board. It all looks passive to me.
> 
> Pins are listed under "24Pin expansion board interface pin description":
> https://orangepi.net/wp-content/uploads/2023/10/OrangePi_Zero2w_H618_User-Manual_v1.1.pdf

So just the lines after the PHY, basically the UTP lines without the
twist.

So please stop wasting my time by making invalid points.

   Andrew