[PATCH v4 2/2] doc: spacemit: bananapi_f3: document Banana Pi F3 board

[Marcel Ziswiler]

Hi Huan

On Thu, 2024-12-12 at 12:00 +0800, Huan Zhou wrote:
> On Wed, Dec 11, 2024 at 09:35:12AM +0100, Marcel Ziswiler wrote:

[snap]

> > > > I tried and it seems to work fine, resp. the only difference I could spot is that instead of 'crc32+
> > > > OK' it
> > > > prints some random ASCII characters in the last line before any U-Boot output:
> > > do you mean the extra '\n'?
> > 
> > No, it literally printed some random chars, but now it seems fine. Probably some unrelated glitch maybe
> > UART
> > related.
> i think it may be your baud rate setting problem?
> I use xshell and the baud rate is set to 115200 and the random char issue never happens to me.

Yes, could indeed be. However, I do use a quality FTDI FT232R with proper voltage-level translation circuitry
and also set it to 115200 baud. If I get time I will hook up my scope to see what that tells us.

> > Actually, one out of five to ten boots it prints such random chars: �,��&�%Hj�H�
> > 
> > I tried cyyself opensbi again and after 10 boots it also printed similar random chars. Actually, it even
> > always
> > prints the exact same ones when it happens. I guess, sooner than later, somebody might need to debug into
> > what
> > exactly is happening there (;-p).
> > 
> > [   0.579] ## Checking hash(es) for Image opensbi ...�,��&�%Hj�H�
> > 
> > Anyway, regular upstream opensbi seems to work just fine, good.

[snap]

Thanks!

Cheers

Marcel