Re: [Linuxptp-users] Problems with hardware time stamping with PHY DP83640 on MCP5200 powerpc platform

[Mario M. <Mar...@we...>]

Hi Richard,

>> I have a question to phy driver dp83640.c only for interest. I have seen
>> in
>> probe function that recalibrate(clock) function not always executed
>> directly
>> after registration. What is the reason for this?
>
> The driver supports using multiple PHYs together as one PHC
> clock. Calibration is needed to synchronize multiple PHYs, but only
> when you have two or more PHYs on the same MDIO bus.
>
> Do you have more than one PHY in your design?

No, we used only one PHY in our design.

>
> If so, their GPIOs need to be wired together correctly in order to
> make this work.
>
> If not, then the recalibrate() function should never be called.

Ok this is also my observation.

Thanks for the info,
Mario