[PATCH V3 1/4 net] net: dsa: b53: deal with Northstar devices using CPU port 5 or 7

[Jakub Kicinski]

On Wed, 12 Aug 2026 15:27:52 +0200 Rafał Miłecki wrote:
> From: Rafał Miłecki <rafal at milecki.pl>
> 
> Northstar devices have 3 CPU ports. Ports 5 and 7 may be used but have
> their limitations. Warn user when CPU port 8 isn't used and add EAP
> setup workaround to avoid non-functional standalone ports.

FTR this needs to apply to the tree tagged in the first patch,
according to the CI it did not apply to net so repost will be needed.