Northstar SoCs have 3 usable Ethernet interfaces each connected to one
of switch ports. They all use fixed links.
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
Link: https://lore.kernel.org/r/20230707091519.21673-1-zajec5@gmail.comSigned-off-by: Florian Fainelli <florian.fainelli@broadcom.com>