lkml.org 
[lkml]   [2022]   [Jan]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH net-next v6] net: phy: intel-xway: Add RGMII internal delay configuration
> > Martin,
> >
> > I've got some boards with the GPY111 phy on them and I'm finding that
> > modifying XWAY_MDIO_MIICTRL to change the skew has no effect unless I
> > do a soft reset (BCMR_RESET) first. I don't see anything in the
> > datasheet which specifies this to be the case so I'm interested it
> > what you have found. Are you sure adjusting the skews like this
> > without a soft (or hard pin based) reset actually works?
> >
> > Best regards,
> >
> > Tim
>
> Hello Tim,
>
> yes, you are right. It is not applied immediately. The link needs to be
> toggled to get this settings active. But my experience shows that this
> would be done in the further boot process anyway e.g. by restarting the
> autonegotiation etc.

Hi Martin

Have you verified this? Maybe try NFS root, so the kernel is the one
up'ing the interface, before user space exists.

Andrew

\
 
 \ /
  Last update: 2022-01-11 14:35    [W:0.231 / U:0.128 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site