Re: mv88e6240 configuration broken for B850v3

Vladimir Oltean
2021-12-07T12:48:56Z

On Tue, Dec 07, 2021 at 03:06:55AM +0100, Andrew Lunn wrote:
> > > mv88e6xxx_software_reset() does not fully reinitialise the switch.
> > > To quote one switch manual for the SWReset bit "Register values are not
> > > modified." That means if the link was forced down previously by writing
> > > to the port control register, the port remains forced down until
> > > software changes that register to unforce the link, or to force the
> > > link up.
> >
> > Ouch, this is pretty unfortunate if true.
>
> Come on. Do you really think Russell is making this up?

I didn't say it isn't true, I just lacked the energy to research this
too last night in the documentation I happened to have. I did find that
quote about the SWReset bit now.

But I did also write a full email after that phrase, making an argument
that still did hold if what was said about the mv88e6xxx resets was true.