From: Detlev Zundel <dzu@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] udelay make at91sam9260 board freeze
Date: Thu, 15 Nov 2007 18:06:38 +0100 [thread overview]
Message-ID: <m2d4ubtp41.fsf@ohwell.denx.de> (raw)
In-Reply-To: <13751461.post@talk.nabble.com> (Gonzague GENET's message of "Wed\, 14 Nov 2007 09\:05\:10 -0800 \(PST\)")
Hi Gonzague,
> Strange problem indeed.
> U-boot freeze when I do fatload instruction. After several investigation,
> the crash appear during the udelay instruction.....
> But if i replace the original code of udelay instruction by a simple for
> loop, it works....
> Any ideas ?
Does the board freeze or is it really a veerrry long delay? I am
tempted to say it is the latter. If you check the archives you will
see that there is always a mist of confusion around CFG_HZ and related
defines which udelay uses (cpu/arm920t/at91rm9200/interrupts.c).
So I suggest to check the values used there on your platform (CFG_HZ
should be 1000 btw.) and find out why udelay spins too long. Having
done that, send a patch and rejoice!
Best wishes
Detlev
--
System going down at 1:45 this afternoon for disk crashing.
--
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
prev parent reply other threads:[~2007-11-15 17:06 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-11-14 17:05 [U-Boot-Users] udelay make at91sam9260 board freeze Gonzague GENET
2007-11-15 17:06 ` Detlev Zundel [this message]
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