[U-Boot] [PATCH 10/10] tools: Add support for Dove to kwboot

[Sebastian Hesselbarth]

On 12/06/2012 07:18 PM, Daniel Stodden wrote:
> On Thu, 2012-12-06 at 11:59 +0100, Sebastian Hesselbarth wrote:
>> So finally, we have three options:
>> - leave kwboot as is and hope the user will know about Dove's inability to
>> use the boot sequence
>> - add a note to usage() and kwboot that Dove doen't like the sequence
>> - add an option to kwboot as you are proposing
>
> Okay, here's a deal.
>
> We've got a bit of a backward compatibility problem anyway. Dave Purdy
> was so kind to write up a summary of popular devices known working and
> not working. That's mainly a matter of firmware revisions. [1]
>
>   - Let's add a message selector, -m<foo>  or so.
>
>     Kirkwood specs list two types, let's make those -mdebug and -muart.
>
>     If we add -m debug, maybe that even results in someone on the web
>     being ultimately able to explain wth debug mode does :)
>
>     Default is -m uart, that's what's going on right now.
>
>   - We add -mnone for pin-selected uart boot mode.
>
>   - Maybe a slightly less specific printv message.
>
>   - But most importantly, we add a COMPATIBILITY section to the manpage,
>     and explain the difference between core revisions there.
>
> We could drop the none case. But then again, if the target isn't reset
> yet, then not scribbling into getties and stuff where it's avoidable
> might be preferred by those who can. So why not.
>
> Could you try to read us the boot firmware revision you're running? It's
> described under the link below. Not sure if it works on your platform
> though.

Daniel,

I did a little testing with kwboot and boot sequence.

First, BootROM version of my Dove is 2.33. The BootROM version address is a
little different what is given on the webpage (ffff003c instead of ff00003c).

CuBox>> md ffff003c 1
ffff003c: 00000233    3...

Dove does not support UART boot sequences. It has to be selected by reset
strapping, i.e. if there is no push button as on the cubox it will be
difficult for most of the users ;)

I also tested the above on the Mirabox (Armada 370) and except that the BootROM
there, prints out some message after reset it works if I first call kwboot with
-b and then with -n or delay xmodem call by a second.

BootROM version on Armada 370 is 1.08 and the version register address is very
different. It resets if I try to read ff00003c or ffff003c and I have neither
a DS nor the u-boot source available.

Finally, I tested kwboot on 88F6282 (aka Armada 300) and there BootROM version
is 1.21 (on ff00003c) and it does work as with Kirkwood (i.e. send boot sequence).

I think, for the patch set, that I will remove patch 10 from it and leave the
required modifications up to you?

Sebastian