From: "Mark Chambers" <markc@mail.com>
To: "Gautam Borad" <gautam@eisodus.com>, <linuxppc-embedded@ozlabs.org>
Subject: Re: frequent sig 11 with malloc() on mpc8xx
Date: Fri, 5 May 2006 10:17:15 -0400 [thread overview]
Message-ID: <001901c6704e$9e36a860$6601a8c0@CHUCK2> (raw)
In-Reply-To: 445B5A98.8020004@eisodus.com
> We are aware that its a FAQ and we rechecked the SDRAM configuration,
> everything seems fine.
> We disabled burst mode and tried but that didnt help. Now we want to
> disable cache and check.
Another thing you can try on the 852 is to change the processor frequency
via the PLPRCR register. If slowing down the clock helps, don't assume
that you have a timing problem though - these PLL circuits are notoriously
twitchy, and it could be noise (or, more properly, resonant frequencies in
your
layout)
Mark Chambers
P.S. Hopefully you have a hardware debugger - you can halt the processor
and change this register on the fly. Same with cache - no sense compiling
these changes, just do them manually.
prev parent reply other threads:[~2006-05-05 14:17 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-05-04 7:48 frequent sig 11 with malloc() on mpc8xx Gautam Borad
2006-05-04 14:46 ` Wolfgang Denk
2006-05-04 15:46 ` David Jander
2006-05-05 8:43 ` Gautam Borad
2006-05-05 9:40 ` Wolfgang Denk
2006-05-05 14:00 ` Gautam Borad
2006-05-05 14:17 ` Mark Chambers [this message]
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