Re: [PATCH net-next v1 1/1] net: phy: dp83td510: Add basic support for the DP83TD510 Ethernet PHY

From: Oleksij Rempel
Date: Tue Jul 27 2021 - 02:51:59 EST


On Mon, Jul 26, 2021 at 03:23:00PM +0200, Andrew Lunn wrote:
> > With current driver ethtool with show this information:
> > Settings for eth1:
> > Supported ports: [ TP MII ]
> > Supported link modes: Not reported
>
> Interesting. The default function for getting the PHYs abilities is
> doing better than i expected. I was guessing you would see 10BaseT
> here.
>
> Given that, what you have is O.K. for the moment.
>
> > > I suspect you are talking about the PoE aspects. That is outside the
> > > scope for phylib. PoE in general is not really supported in the Linux
> > > kernel, and probably needs a subsystem of its own.
> >
> > No, no. I'm talking about data signals configuration (2.4Vpp/1Vpp), which
> > depends on application and cable length. 1Vpp should not be used with
> > cable over 200 meter
>
> Should not be used, or is not expected to work very well?

ack, it will not work very well :)

> > and 2.4Vpp should not be used on safety critical applications.
>
> Please work with the other T1L driver writer to propose a suitable way
> to configure this. We want all T1L drivers to use the same
> configuration method, DT properties etc.

ack.

After getting 802.3cg-2019 i give NACK to my patch. At least part
of all needed functionality can be implemented as common code.

Regards,
Oleksij
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