Re: [PATCH net-next v14 10/13] net: mdio: realtek-rtl9300: Open up C22 and C45 space in parallel

On Mon, Aug 17, 2026 at 10:25:47PM +0200, Markus Stockhausen wrote:
> > Von: Andrew Lunn <[email protected]> 
> > Gesendet: Montag, 17. August 2026 22:11
> > An: Markus Stockhausen <[email protected]>
> > Betreff: Re: [PATCH net-next v14 10/13] net: mdio: realtek-rtl9300: Open
> up C22 and C45 space in parallel
> >
> > > All downstream 1G PHY drivers for that platform use dedicated 
> > > read_mmd/write_mmd callbacks that run __mdiobus_c45_read/write().
> > > So no warnings during bootup.
> >
> > O.K.
> >
> > In Mainline, please think about how you make that work. Are these PHYs
> > also used with MDIO busses which have working C45 over C22? And no
> > C45?
> 
> Until now we never encountered any of these PHYs in scope 
> (RTL8218x octa port) outside of the Realtek RTL83xx/RTL93xx 
> ecosystem.

Is the ID in registers 2 and 2 specific to the RTL83xx/RTL93xx ?  That
would make thinks simple.

   Andrew