[U-Boot-Users] dtb in env sector - was: (Try 2) Please pull ...

Wolfgang Denk
2007-04-03T12:53:09Z

Hi,

in message <46122D99.3080408@gmail.com> you wrote:
>
> That is an excellent idea and should be one of our goals: to better
> coordinate the dft and env variables. As the penultimate goal, I
> believe we could move the env variables _into_ the dft and replace the
> get/set env routines with dft get/set routines. I'm still thinking
> about this... env variables are used very early in power up (before RAM
> is initialized), but I haven't seen any reason that it /can't/ be done.

This depends on how much resources your code needs. Remember that we
have to read the environment before relocation, i. e. without
writable data segment, without BSS, and with just minimal stack and
global storage (assume 128 bytes or so :-).

> The downside of dfts is that the code is bigger. My preliminary size

We will probably also have to keep the old code for special
requirements - for example, some systems store the environment in an
EEPROM.

Best regards,

Wolfgang Denk

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