Re: [PATCH v5 1/2] net: dsa: mv88e6xxx: Don't forbid MDIO I/Os for PHY addr >= num_of_ports

From: Andrew Lunn
Date: Thu Jan 19 2017 - 19:07:40 EST


On Thu, Jan 19, 2017 at 05:13:12PM -0500, Vivien Didelot wrote:
> Hi Gregory,
>
> Gregory CLEMENT <gregory.clement@xxxxxxxxxxxxxxxxxx> writes:
>
> > From: Romain Perier <romain.perier@xxxxxxxxxxxxxxxxxx>
> >
> > Some Marvell ethernet switches have internal ethernet transceivers with
> > hardcoded phy addresses. These addresses can be greater than the number
> > of ports or its value might be different than the associated port number.
> > This is for example the case for MV88E6341 that has 6 ports and internal
> > Port 1 to Port4 PHYs mapped at SMI addresses from 0x11 to 0x14.
>
> Isn't there an hardware table used to map the PHY addresses on such chip?

The 6390 has something like this. But if we can avoid it, lets keep it
KISS.

Andrew