Re: [PATCH/RFC repost] arm64: dts: renesas: ebisu, draak: Limit EtherAVB to 100Mbps

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On Wed, Jul 17, 2019 at 02:24:51PM +0100, Kieran Bingham wrote:
> Hi Simon,
> 
> On 17/07/2019 13:57, Simon Horman wrote:
> > * According to the R-Car Gen3 Hardware Manual Errata for Rev 1.00 of
> >   August 24, 2018, the TX clock internal delay mode isn't supported
> >   on R-Car E3 (r8a77990) and D3 (r8a77995).
> > 
> > * TX clock internal delay mode is required for reliable 1Gbps communication
> >   using the KSZ9031RNX phy present on the Ebisu and Draak boards.
> > 
> > Thus, the E3 based Ebisu and D3 based Draak boards reliably use 1Gbps and
> > the speed should be limited to 100Mbps.
> 
> I believe you might mean 'can not' reliable use 1Gbps here :-)

Yes, indeed.
Thanks for noticing.



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