On Wed, Aug 06, 2008 at 07:41:28AM -0600, Grant Likely wrote:
> 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.

If extra stuff needs to be done, it shouldn't claim to be a simple-bus.

-Scott
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