[U-Boot-Board-Maintainers] Raspberry pi 4 - u-boot - genet / scb

[Andre Przywara]

On Wed, 11 Dec 2019 10:23:16 +0100
Matthias Brugger <matthias.bgg at gmail.com> wrote:

Hi,

> On 09/12/2019 14:33, Sascha Dewald wrote:
> > Hello Amit,
> > 
> > no problem.
> > 
> > Is there some git feature branch, to have a look ?  
> 
> Yes I'd love to have a look as well :)

We will send an RFC later this week, Amit is doing some cleanup now. At the moment transfers work up to 256 packets (375KB when using TFTP), at this point it breaks, because recycling DMA descriptors is not working for some reason. I haven't found any documentation for the MAC, so I am reverse engineering the Linux driver and doing printf and tcpdump debugging right now. Looking forward to people joining us in this effort ;-)

Cheers,
Andre

> > Am Mo., 9. Dez. 2019 um 12:12 Uhr schrieb Amit Tomer <amittomer25 at gmail.com>:  
> >>
> >> Hello Sascha,
> >>  
> >>>> Am 07.12.19 um 07:23 schrieb Sascha Dewald:  
> >>>>> Hello,
> >>>>>
> >>>>> is there any progress yet ?  
> >>
> >> Sorry for being late on this.
> >>
> >> We have made some progress, ping from RPI to host is working now.
> >> Also, managed to received short files(< 63KB) via TFTP.
> >> but haven't managed to get proper handshaking going(that would enable
> >> us to receive bigger files too).
> >>
> >> Working on it and keep you posted about the progress.
> >>
> >> Thanks
> >> -Amit