On 10/6/20 9:36 PM, Florian Fainelli wrote:
[...]
>> - Use compatible ("compatible = "ethernet-phy-id0022.1560") in the
>> devicetree,
>> so that reading the PHYID is not needed
>> - easy to solve.
>> Disadvantage:
>> - losing PHY auto-detection capability
>> - need a new devicetree if different PHY is used (for example in
>> different
>> board revision)
>
> Or you can punt that to the boot loader to be able to tell the
> difference and populate different compatible, or even manage the PHY
> reset to be able to read the actual PHY OUI. To me that is still the
> best solution around.
Wasn't there some requirement for Linux to be bootloader-independent ?
Some systems cannot replace their bootloaders, e.g. if the bootloader is
in ROM, so this might not be a solution.
>> - modify PHY framework to deassert reset before identifying the PHY.
>> Disadvantages?
If this happens on MX6 with FEC, can you please try these two patches?
https://patchwork.ozlabs.org/project/netdev/patch/20201006135253.97395-1-ma...@denx.de/
https://patchwork.ozlabs.org/project/netdev/patch/20201006202029.254212-1-ma...@denx.de/
Thanks!
