[PATCH 2/3 Try#2] NOR Flash Support (U-Boot env)

Andy Green andy at openmoko.com
Mon Dec 24 16:05:27 CET 2007


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Somebody in the thread at some point said:
> Andy Green wrote:
>> They can DFU-update to a contemporary GTA-01 U-Boot and they're away
>> again, if I understood you.
> 
> Not quite. They mainly have to edit and update their environment.

They are in a position to do this with minicom.  In short they need to
read a wiki page about it, but it doesn't brick them.

> If Linux user space references any partitions, that would have to
> be edited as well.

On the userspace that I inherited from Willie, which I think is pretty
common, only /dev/root -> / is used, ie, no changes to /etc/fstab are
required once the U-Boot -> kernel commandline magic is done, userspace
just comes up fine.  BTW the U-Boot envs I see on the boards I got bear
zero relationship to your environment.in, so environment.in is not
getting tested in my (limited) experience.

>> My point is that the even more ultimate goal is to get a production
>> version out.
> 
> Sure, but if you create weeks of extra work to save a couple of
> hours, that's not good either.

Inbetween our causing some poor guy "weeks" of work while we eat grapes
peeled for us by beautiful maidens; and our trying to shoulder the
weight of multiple worlds while staggering forwards: there is a sweet
spot where we can stride briskly on and the load on the GTA-01
backporter is light.

>> For example I don't have a GTA-01 and I can't test what I
>> am putting out for GTA-01...
> 
> Well, just don't actively break anything. It's easy to fix things
> that might slip through. It's hard to fix things if the breakage
> has become a design goal.

Breaking GTA-01 per se doesn't buy me anything, my point is rather that
ignoring it might, when an able GTA-01 person has our continuous working
GTA-02 patches to start from.

>> If the future is kind that can work fine.  Or it can turn into an
>> impenetrable #ifdef forest :-)
> 
> I'm looking forward to the day when the devirginator has to support
> a dozen different product lines ;-))

I would get a case of brandy just in case, either way it is going to
help ;-)

- -Andy
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