On Sat, Aug 14, 2021 at 05:26:55PM +0200, Andrew Lunn wrote: > > Thanks for jumping in. We are using BCM5389 and the MDIO bus is used to > > access BCM5389 MDC/MDIO interface in Pseudo-PHY mode. > > > > I didn't know drivers/net/dsa, but let me check out the drivers and see > > if it works in the Cloudripper environment. > > The b53 driver knows about this switch, so please make use of that > driver. See Documentation/devicetree/bindings/net/dsa/brcm,b53.yaml > for how you describe it in DT. > > Andrew Thank you Andrew for looking into it. I will update dts and send out followup patch after validation (perhaps after v5.15 merge window). Thanks, Tao