From: Detlev Zundel <dzu@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] altbootcmd and failbootcmd
Date: Tue, 27 Sep 2011 16:49:19 +0200 [thread overview]
Message-ID: <m2vcserqfk.fsf@ohwell.denx.de> (raw)
In-Reply-To: <02296E583CC11C4D9365985B761F1DDE01010AE4@www.fyldemicro.co.uk> (Thomas Johnson's message of "Fri, 16 Sep 2011 16:08:45 +0100")
Hi Thomas,
> I already have configured and built and have running u-boot and booting
> Linux on my custom MPC8313 based board, all ok so far.
Excellent.
> I am now trying to enable the altbootcmd and failbootcmd features so in
> the event of a image failure or non linux boot I can reboot to a known
> working image set.
The easy way is to put multiple boot commands in sequence - if one
returns because of a failure, the next one will run ;)
> I have tried setting CONFIG_POST and get "__POST_WORD_ADDR currently not
> implemented for this platform". How do I implement/set this ?
What U-Boot version do you use? I cannot find a reference to this in
current code.
Apart from that: You first have to find a storage space to store the
post word. This storage needs to survive a reset of the system.
Depending if that is reachable through regular memory access, you only
have to define __POST_WORD_ADDR. In any other case you would need to
implement a setter/getter for that word yourself.
> I have tried setting CONFIG_BOOTCOUNT_LIMIT and get message error
> QE_MURAM_SIZE undeclared. Any ideas on this one ?
The code seems to have bugs - now go and find them. Or rather try a
more recent version of U-Boot ;)
Cheers
Detlev
--
debian is a prototype for a future version of emacs.
-- Thien-Thi Nguyen in <7eekubiffq.fsf@ada2.unipv.it>
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-40 Fax: (+49)-8142-66989-80 Email: dzu at denx.de
next prev parent reply other threads:[~2011-09-27 14:49 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-16 15:08 [U-Boot] altbootcmd and failbootcmd Thomas Johnson
2011-09-27 14:49 ` Detlev Zundel [this message]
2011-09-27 20:40 ` Kim Phillips
2011-09-28 21:00 ` Wolfgang Denk
2011-09-29 14:56 ` Thomas Johnson
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