[PATCH 2/2] ARM: dts: aspeed: ventura2: Add Meta ventura2 BMC

[Andrew Lunn]

On Tue, Dec 23, 2025 at 09:49:02AM +0800, 謝政吉 wrote:
> On Mon, Dec 22, 2025 at 5:30 PM Andrew Lunn <andrew at lunn.ch> wrote:
> >
> > > +&mdio0 {
> > > +     status = "okay";
> > > +};
> > > +
> > > +&mac2 {
> > > +     status = "okay";
> > > +     phy-mode = "rmii";
> > > +     pinctrl-names = "default";
> > > +     pinctrl-0 = <&pinctrl_rmii3_default>;
> > > +     fixed-link {
> > > +             speed = <100>;
> > > +             full-duplex;
> > > +     };
> > > +};
> >
> > That is an odd combination. You enable the MDIO bus, but don't have
> > any PHYs on it, no phandles pointing to it. And you have this
> > fixed-link. It makes me think you have an Ethernet switch on the bus,
> > and this connects to it?
> Thanks for the clarification.
> Yes, there is an Ethernet switch in the design.
> The MAC is connected to the switch via RMII using a fixed-link
> configuration.

What make/model of switch is it? Is it unmanaged, or does it use SPI
or I2C for management?

	Andrew