From: Vivien Didelot
Date: Mon, 5 Dec 2016 17:30:24 -0500
> Old Marvell chips (like 88E6060) don't have a PHY Polling Unit (PPU).
>
> Next chips (like 88E6185) have a PPU, which has exclusive access to the
> PHY registers, thus must be disabled before access.
>
> Newer chips (like 88E6352) hav
Old Marvell chips (like 88E6060) don't have a PHY Polling Unit (PPU).
Next chips (like 88E6185) have a PPU, which has exclusive access to the
PHY registers, thus must be disabled before access.
Newer chips (like 88E6352) have an indirect mechanism to access the PHY
registers whenever, thus loose
