From mboxrd@z Thu Jan 1 00:00:00 1970 From: Detlev Zundel Date: Tue, 27 Sep 2011 16:49:19 +0200 Subject: [U-Boot] altbootcmd and failbootcmd In-Reply-To: <02296E583CC11C4D9365985B761F1DDE01010AE4@www.fyldemicro.co.uk> (Thomas Johnson's message of "Fri, 16 Sep 2011 16:08:45 +0100") References: <02296E583CC11C4D9365985B761F1DDE01010AE4@www.fyldemicro.co.uk> Message-ID: List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de 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