[U-Boot-Users] AMCC PPC440EPx/sequoia stability question...

Josh Boyer jwboyer at linux.vnet.ibm.com
Thu Apr 24 22:00:06 EST 2008

On Thu, 2008-04-24 at 06:36 +0200, Stefan Roese wrote:
> On Thursday 24 April 2008, Josh Boyer wrote:
> > > Please note that I recently introduced a CFG_MEM_TOP_HIDE option for the
> > > 440EPx CHIP 11 errata. I suggest you take a look at this too and see if
> > > this changes your behavior.
> >
> > Explain this a bit more please?  Is a kernel change needed here?
> This depends. When the bootwrapper version is used then yes, the kernel should 
> get changed. This is because the bootwrapper detects the SDRAM size from the 
> DDR2 controller and passes it to Linux.
> Without bootwrapper no changes are needed, since U-Boot already passes the 
> corrected memory size to Linux (totalsize-4k currently).

Hm.  Given that AMCC ships the boards with an older U-Boot that requires
cuImages, I think we'll need to patch the wrapper.  Does 440GRx share
this same errata?  I would think so.


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