[U-Boot] help on POST
Wolfgang Denk
wd at denx.de
Fri Jul 30 23:29:03 CEST 2010
Dear York Sun,
In message <1280524829.25910.58.camel at oslab-l1> you wrote:
>
> Please help me to understand the post_word_write() and post_word_load().
> I see some implementations which don't use NVRAM. Is it OK to use gd?
No.
> Does the post_word_load() require the data survive reset? How is the
Yes.
> data validated? I don't see any code to validate the value.
It checks against BOOTMODE_MAGIC.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
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