From: Wolfgang Denk <wd@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] help on POST
Date: Fri, 30 Jul 2010 23:29:03 +0200 [thread overview]
Message-ID: <20100730212903.3B69C152397@gemini.denx.de> (raw)
In-Reply-To: <1280524829.25910.58.camel@oslab-l1>
Dear York Sun,
In message <1280524829.25910.58.camel@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
Faith may be defined briefly as an illogical belief in the occurence
of the improbable. - H. L. Mencken
next prev parent reply other threads:[~2010-07-30 21:29 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-28 23:25 [U-Boot] [PATCH 8/8] powerpc/85xx: Add memory test feature for mpc85xx sun york-R58495
2010-07-29 21:28 ` Wolfgang Denk
2010-07-30 21:20 ` [U-Boot] help on POST York Sun
2010-07-30 21:29 ` Wolfgang Denk [this message]
2010-07-30 21:34 ` York Sun
2010-07-31 17:11 ` Wolfgang Denk
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