From: Wolfgang Denk <wd-ynQEQJNshbs@public.gmane.org>
To: Mike Frysinger <vapier.adi-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: Rob Landley <rob-VoJi6FS/r0vR7s880joybQ@public.gmane.org>,
T Ziomek <ctz001-qbu1+ugcRq/by3iVrkZq2A@public.gmane.org>,
David VomLehn <dvomlehn-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>,
linux-embedded-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: Some embedded topics
Date: Thu, 29 May 2008 07:38:01 +0200 [thread overview]
Message-ID: <20080529053801.E633C247CC@gemini.denx.de> (raw)
In-Reply-To: Your message of "Thu, 29 May 2008 00:21:52 EDT." <8bd0f97a0805282121j10a99bb7ve92efc6a8dc8bbb1-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
In message <8bd0f97a0805282121j10a99bb7ve92efc6a8dc8bbb1-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org> you wrote:
>
> how about the fact that when the core resets, the memory controller is
> often reset as well ? that external memory is going to degrade. or
> do we just bite our thumb and weather the few random bit errors ?
It depends. In all cases we tested so far we have never seen a
corrupton because the hardware and U-Boot were quick enough to get at
least refresh running again in time.
If you are really concerned, there are other options. For example on
systems that have OCM or SRAM you can put the log buffer there. We
did this in a project on 440EPx.
Best regards,
Wolfgang Denk
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DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
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next prev parent reply other threads:[~2008-05-29 5:38 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <483C83DE.3040604@cisco.com>
[not found] ` <483C83DE.3040604-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
2008-05-29 2:09 ` Some embedded topics Paul Gortmaker
[not found] ` <8bd0f97a0805271527i622a31b8t68ba24c80a2e034a@mail.gmail.com>
[not found] ` <20080527223142.GU26837@email.mot.com>
[not found] ` <20080527223142.GU26837-qbu1+ugcRq/by3iVrkZq2A@public.gmane.org>
2008-05-29 3:01 ` Rob Landley
[not found] ` <200805282201.48746.rob-VoJi6FS/r0vR7s880joybQ@public.gmane.org>
2008-05-29 4:21 ` Mike Frysinger
[not found] ` <8bd0f97a0805282121j10a99bb7ve92efc6a8dc8bbb1-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-05-29 5:38 ` Wolfgang Denk [this message]
2008-05-29 17:31 ` Rob Landley
2008-05-29 18:20 ` Mike Frysinger
2008-05-29 5:34 ` Wolfgang Denk
2008-05-29 9:31 ` Geert Uytterhoeven
2008-05-30 22:59 ` Tim Bird
2008-05-30 23:20 ` Jordan Crouse
2008-05-31 0:07 ` Josh Boyer
2008-05-31 13:32 ` Geert Uytterhoeven
[not found] ` <8bd0f97a0805271535w267be51fq669def9aa424e4e7@mail.gmail.com>
[not found] ` <840404080805280740q4486f377x49c106e20d9f5dc2@mail.gmail.com>
[not found] ` <840404080805280744t351da73fk885fa7b29c05659c@mail.gmail.com>
[not found] ` <483D7355.5050803@coritel.it>
[not found] ` <483D7355.5050803-5RgZt0ZUL+KonA0d6jMUrA@public.gmane.org>
2008-05-28 15:44 ` Fwd: " Joe MacDonald
2008-05-30 22:21 ` Tim Bird
2008-06-02 0:09 ` Rob Landley
2008-06-03 8:32 ` Marco Stornelli
[not found] ` <20080527173118.12ec691b@vader.jdub.homelinux.org>
[not found] ` <f608b67d0805271537m1b07e08y5dd84f7bbd8918cf@mail.gmail.com>
[not found] ` <20080527180200.56ffc588@vader.jdub.homelinux.org>
2008-05-30 22:36 ` Tim Bird
2008-05-31 0:04 ` Josh Boyer
2008-06-01 23:52 ` Rob Landley
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