[PATCH 4/4] FEC: Add time stamping code and a PTP hardware clock

[Frank Li]

>> +       Say Y here if you want to use PTP Hardware Clock (PHC) in the
>> +       driver.  Only the basic clock operations have been implemented.
>> +
>
> Does the PTP function work with every FEC on ColdFire and i.MX?

No, I just test i.MX.

>
> Or do you need to limit this option in some way?

Okay, I will do that at new patch because this patch have been accepted.

>
> You can reduce the time that the spin lock is held by moving the next
> four lines before the locked region:
>
>> +     fep->cc.mult = FEC_CC_MULT;
>> +     diff = fep->cc.mult;
>> +     diff *= ppb;
>> +     diff = div_u64(diff, 1000000000ULL);
>

Okay, I will do that at new patch and fix a bug when two boards
directly connect at 1G mode.