incompatible device trees between u-boot and linux

[Vladimir Oltean]

On Sun, Aug 29, 2021 at 01:12:30AM +0200, Michael Walle wrote:
> Am 2021-08-26 18:32, schrieb Vladimir Oltean:
> > On Thu, Aug 26, 2021 at 09:35:12AM +0200, Michael Walle wrote:
> > > Theres still one catch at the moment, AFAIK in linux you can put the
> > > PHYs either in the mdio controller node or in a "mdio" subnode within
> > > the ethernet controller node. I'm not sure wether the latter works in
> > > u-boot, but [1] looks promising. At least, linux dtbs are using the
> > > mdio subnodes and u-boot put the phys into the mdio controller node.
> >
> > Please change Linux for that, move the PHYs from the per-port MDIO node
> > to the PF 3 central MDIO controller node. Due to hardware reasons, the
> > per-port MDIO controller registers are in fact de-featured and should be
> > hidden from new LS1028A reference manuals.
>
> Care to share some more details? There should be some more information
> besides "for hardware reasons" which should go into the commit message.
> Is there an erratum?
>
> In fact, I guess in Rev0 of the RM it has already been removed, at least
> from the port memory map (in the RevB RM it was still present).
>
> -michael

It's a long and boring explanation, PM sent.