On Mon, Feb 11, 2019 at 11:36:52AM +0100, Marco Felsch wrote:
> Hi Shawn,
>
> On 19-02-11 10:36, Shawn Guo wrote:
> > On Mon, Feb 04, 2019 at 04:29:56PM +0100, Marco Felsch wrote:
> > > From: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
> > >
> > > The pfla02 SoM has a Micrel KSZ9031RNX ethernet phy connected to the FEC,
> > > which needs RX and TX clock skew settings to compensate for differences
> > > in line length. The skew values are taken from barebox commit
> > > 4c65c20f1071 ("ARM: pfla02: Set new ethernet phy tx timings"), which
> > > is based on patches originally provided by Phytec:
> > >
> > > TX_CLK line is approx. 54mm longer than other TX lines which adds
> > > a delay of 0.36ns. RGMII need a delay of min. 1.0ns. This mean we
> > > have to add a delay of 0.64ns. We choose 0.78 to have a little gap.
> > > This can be done by setting GTX pad skew value to 11100
> > > Also add a delay for the RX delay lines, needed for the Duallite
> > > variant. => Set register 2.8 (RGMII Clock Pad Skew) to 0x039F.
> > >
> > > Cc: Christian Hemp <c.hemp@xxxxxxxxx>
> > > Signed-off-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
> > > Signed-off-by: Marco Felsch <m.felsch@xxxxxxxxxxxxxx>
> >
> > Applied, thanks.
>
> Thanks, for applying. Just for me, is something wrong with the first
> patch?
No. Something is wrong on my side - the patch went to Spam folder for
some reason.
Shawn
