[PATCH 2/4] net: phy: marvell: Allow targets to skip MII RX/TX errata

[Paul Fertser]

On Fri, Mar 21, 2025 at 12:50:51PM -0500, Timothy Pearson wrote:
> >> +		/* Per the vendor, certain Marvell devices will not function if
> >> +		 * the RGMII TX/RX delay registers are modified.  If an
> >> +		 * affected design has been selected, do not write the
> >> +		 * RX/TX delay registers.
> >> +		 */
> > 
> > This doesn't say much. Please reference the actual errata document
> > number or cite its text or find some other way to explain which
> > devices are affected how. Proper implementation depends a lot on those
> > details.
> 
> Understood.  I am navigating a bit of a sea of NDA restricted / proprietary components here, apologies for the lack of detail.
> 
> Let me see if I can get that information and get approval for public
> disclosure.  These patches are in support of the SIE Cronos board,
> which unfortunately was designed by a third party without proper
> U-boot / OpenBMC integration in mind.  As a result, there are unique
> hardware decisions that were made, and the DT is not authoritative
> on these platforms.

DT should be capable of describing any hardware, that's what it's made
for. If some particular property is missing it can be added upstream
and then added to the board's DT. It's not yet clear from this patch
and its commit message what specifically is unique about this board.