[U-Boot] [PATCH 3/3] i.MX28: Increase the delay after DRAM init
Detlev Zundel
dzu at denx.de
Fri May 4 11:16:21 CEST 2012
Hi Marek,
> Dear Detlev Zundel,
>
>> Hi Marek,
>>
>> [...]
>>
>> >> Can you please comment on why we are waiting and why we are waiting
>> >> exactly this long? Can we maybe poll the needed time somehow?
>> >
>> > We need to wait for the CPU clock to stabilize.
>>
>> This would be a worthwhile comment in the code.
>>
>> > I think there is a bit for that that we can poll, indeed.
>>
>> And _that_ is even better ;)
>
> And I was wrong, there isn't ... I made a dip into the manual and there's
> nothing :/ So this patch will have to do
Ah, too bad. Then at least comment on how you derived the delay and
what parameters where used for this calculation.
Thanks
Detlev
--
... and I will continue to use a low-level language to indicate how
machines actually compute. Readers who only want to see algorithms
that are already packaged in a plug-in way, using a trendy language,
should buy other people's books.
-- Donald Knuth, Fascicle 1
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
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