[U-Boot] ARM POST Tests.

[Valentin Longchamp]

On 07/19/2011 08:45 PM, Wolfgang Denk wrote:
> Dear Valentin Longchamp,
> 
> In message <4E25A2D0.1090903 at keymile.com> you wrote:
>>
>> With the memory test, that takes place before the relocation, it is extremly
>> slow (even if I reduce the size of the memory tested to a very small portion).
>> Is it something you have noticed as well ?
> 
> This might be due to caches not being turned on yet?
> 

This may explain one part of the issue.

I have done a little bit of profiling this morning, and the main culprit is the
call to getenv_f in post_get_flags for the four environment variables:

"post_poweron", "post_normal", "post_slowtest" "post_critical"

This is extremly slow on my system (before relocation). The goal of these env
variables is, I guess, to define the name of the tests that have to be run for
each post level, right ? Is this the only way to define which tests are to be run ?

-- 
Valentin Longchamp
Embedded Software Engineer
Hardware and Chip Integration
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