From: Gerhard Jaeger <g.jaeger@sysgo.com>
To: linuxppc-embedded@ozlabs.org
Cc: Eric Kampman <erickampman@yahoo.com>
Subject: Re: MPC8555CDS & CCSRBAR
Date: Tue, 9 Aug 2005 16:15:53 +0200 [thread overview]
Message-ID: <200508091615.53736.g.jaeger@sysgo.com> (raw)
In-Reply-To: <20050809140428.13450.qmail@web41211.mail.yahoo.com>
On Tuesday 09 August 2005 16:04, Eric Kampman wrote:
> Trying to port an SEC driver to Linux/PPC8555. Reading
> the default CCSRBAR @ 0xFF700000 I read 0xFFFFFFFF
> which is wrong. Looking at Metrowerks init files and
> uboot code (1.1.2) I see it's likely been moved to
> 0xE0000000, but I get a seg fault when I try to read
> there.
>
> So, what am I doing wrong, and even better, how do I
> at runtime find out where CCSRBAR is? Thanks in
> advance, and please forgive the likely ignorance,
>
> Eric
>
use the get_ccsrbar() function to get the address, then ioremap()
will be your friend ;)
HTH
Gerhard
--
Gerhard Jaeger <gjaeger@sysgo.com>
SYSGO AG Embedded and Real-Time Software
www.sysgo.com | www.elinos.com | www.pikeos.com | www.osek.de
next prev parent reply other threads:[~2005-08-09 14:16 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-08-09 14:04 MPC8555CDS & CCSRBAR Eric Kampman
2005-08-09 14:15 ` Gerhard Jaeger [this message]
2005-08-09 14:33 ` Kumar Gala
2005-08-09 15:53 ` Clemens Koller
2005-08-09 16:04 ` Kim Phillips
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