e8b1516a8b
The only thing this phy needs that the ukphy driver doesn't provide is that the value in the proprietary Phy Control 2 Register must be saved before doing a soft reset and restored afterwards. Most modern phys have "sticky bits" for low-level config that survive a reset, but on this one the values in all registers go back to defaults, wiping out any board- specific config set up by the bootloader/bios/whatever.