RE: [PATCH] net: fec: Fix dual ethernet issue in VFxx

From: fugang.duan@xxxxxxxxxxxxx
Date: Fri Jan 09 2015 - 03:43:36 EST


From: Stefan Agner <stefan@xxxxxxxx> Sent: Friday, January 09, 2015 4:22 PM
> To: Duan Fugang-B38611
> Cc: Bhuvanchandra DV; linux-kernel@xxxxxxxxxxxxxxx; Zhou Luwei-B45643;
> LW@xxxxxxxxxxxxxxxxxxx; Li Frank-B20596; davem@xxxxxxxxxxxxx; u.kleine-
> koenig@xxxxxxxxxxxxxx; shawn.guo@xxxxxxxxxx
> Subject: RE: [PATCH] net: fec: Fix dual ethernet issue in VFxx
>
> On 2015-01-09 04:00, fugang.duan@xxxxxxxxxxxxx wrote:
> > From: Stefan Agner <stefan@xxxxxxxx> Sent: Friday, January 09, 2015
> > 2:59 AM
> >> To: Duan Fugang-B38611
> >> Cc: Bhuvanchandra DV; linux-kernel@xxxxxxxxxxxxxxx; Zhou
> >> Luwei-B45643; LW@xxxxxxxxxxxxxxxxxxx; Li Frank-B20596;
> >> davem@xxxxxxxxxxxxx; u.kleine- koenig@xxxxxxxxxxxxxx;
> >> shawn.guo@xxxxxxxxxx
> >> Subject: RE: [PATCH] net: fec: Fix dual ethernet issue in VFxx
> >>
[snip]
>
> Currently, MAC1 is broken in case 3 on Vybrid (as well as i.MX6XS and
> i.MX7, because the FEC_QUIRK_ENET_MAC is enabled for all of them).
>
> > For all these cases, your above patches cannot handle these.
>
> Yes, in it's current state, I agree. A new revision is required.
>
> > So I still insist to add another property for this to avoid the
> > existing dts files change.
>
> But I don't think adding another device tree property is helping here.
> There is already a device tree standard how to describe the MDIO buses,
> why not just make use of them?
>
> I will create a v2 patchset, so we have a new base to discuss this
> further.
>
Don't invent new property, and compatible with above four cases (avoid existing dts changing), it is difficult.
Looking forward to your next patchset.

Regards,
Andy
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