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From: Grant Likely <grant.likely@secretlab.ca>
To: Kumar Gala <galak@kernel.crashing.org>
Cc: ppc-dev list <linuxppc-dev@ozlabs.org>
Subject: Re: hang w/ppc6xx_defconfig related to 'simple-bus' compatible
Date: Wed, 6 Aug 2008 07:41:28 -0600	[thread overview]
Message-ID: <20080806134128.GA9533@secretlab.ca> (raw)
In-Reply-To: <F2163BC0-08A2-4C17-AAE7-C37BD0CA66EA@kernel.crashing.org>

On Tue, Aug 05, 2008 at 08:21:31AM -0500, Kumar Gala wrote:
> I'm trying to get the ppc6xx_defconfig booting on any 8641 (74xx/e600)  
> system.  If I remove the 'simple-bus' compatible from the soc node in  
> the .dts it works.  Otherwise it hangs at but and looks to be crashed in 
> the serial driver due to accessing memory at 0.
>
> I've tried the same .dts (w/'simple-bus') using the  
> mpc8641_hpcn_defconfig and things work.

The Xilinx folks hit something similar.  ns16550 nodes get matched if
the parent claims simple-bus.  If extra stuff needs to be done to use
that port, then bad things happen.

g.

  reply	other threads:[~2008-08-06 13:41 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-08-05 13:21 hang w/ppc6xx_defconfig related to 'simple-bus' compatible Kumar Gala
2008-08-06 13:41 ` Grant Likely [this message]
2008-08-06 13:47   ` Kumar Gala
2008-08-06 13:49     ` Grant Likely
2008-08-06 17:35   ` Scott Wood
2008-08-06 18:02     ` Stephen Neuendorffer
2008-08-06 18:39       ` Kumar Gala
2008-08-06 19:03         ` John Linn
2008-08-07  1:10     ` Grant Likely

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