[U-Boot] [PATCH 12/26] ARM: add relocation support

Wolfgang Denk
2010-09-16T11:06:01Z

Dear Wolfgang Wegner,

In message <20100916101810.GH25692@leila.ping.de> you wrote:
>
> I see this feature not only nice to speed up development, sometimes
> it also comes in really handy for production, too - if you have to

I think we all agree that this would be a nice-to-have feature.

> struggle with debugging tools that are either plain too stupid to
> program some flash devices or are much slower than U-Boot, you
> can simply run a specially built version from RAM and/or provide it
> with an environment in RAM to do all the actual flashing for the board
> production.

Note the "specially built version". My understanding is that this
"special building" cannot be avoided in general.

> For some targets, there may be fragments present in the code
> when searching for CONFIG_MONITOR_IS_IN_RAM, which statically
> disables all the low-level initialization to allow U-Boot being
> loaded from a first-stage loader or debugger. But beware, it is
> not always functional out-of-the-box.

True. And the image configured that way is not the same binary image
that you normally load into flash.

Best regards,

Wolfgang Denk

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