# Re: \[PATCH net-next v2 3/4\] Documentation: net: phy: Add blurb about RGMII

- From: Måns Rullgård \<hidden\>
- Date: 2016-11-30 13:43:39 
- List: netdev
- Page: https://ratatoskr.run/netdev/2016/11/11036577
- Thread: https://ratatoskr.run/netdev/2016/11/11036009/t.md

```text
David Laight [ref] writes:

> From: Florian Fainelli
>> Sent: 27 November 2016 23:03
>> Le 27/11/2016  14:24, Timur Tabi a crit :
>> >> + * PHY device drivers in PHYLIB being reusable by nature, being able to
>> >> +   configure correctly a specified delay enables more designs with
>> >> similar delay
>> >> +   requirements to be operate correctly
>> >
>> > Ok, this one I don't know how to fix.  I'm not really sure what you're
>> > trying to say.
>> 
>> What I am trying to say is that once a PHY driver properly configures a
>> delay that you have specified, there is no reason why this is not
>> applicable to other platforms using this same PHY driver.
>
> As has been stated earlier it can depend on the track lengths on the
> board itself.
> (Although 1ns is about 1 foot - so track delays of that length are unlikely.)

There could be a delay element.

-- 
Måns Rullgård
```