Problem with cuImage Linux entry from old U-boot

[Stephen Horton]

Thanks Scott for the tip. I'll redouble my efforts to compare the code
in my older 1.1.2 U-boot source (that the board boots from) with my new
.dts and cuboot source.

-----Original Message-----
From: Scott Wood [mailto:scottwood at freescale.com] 
Sent: Tuesday, July 22, 2008 1:05 PM
To: Stephen Horton
Cc: linuxppc-embedded at ozlabs.org
Subject: Re: Problem with cuImage Linux entry from old U-boot

On Mon, Jul 21, 2008 at 03:39:55PM -0500, Stephen Horton wrote:
> I have made great strides with help from this mailing list and its
> archives. I now have a compiled cuImage ready to boot from my older
> working u-boot 1.1.2. I now seem to be stuck at the kernel entry
point.
> I'm not sure if I'm trying to jump into the kernel at the wrong
address,
> or if I have a serial console issue that prevents me from seeing
anymore
> progress.

Most likely the latter, or some other issue that prevents the kernel
from
booting to the point where the serial console functions.

> Linux/PowerPC load: ip=bootp root=/dev/nfs rw nfsroot=/opt/gentoo
> console=ttyMM0,9600n8
> Finalizing device tree... flat tree at 0x7423a0
> 
>  
> 
> ------
> 
>  
> 
> If I run 'nm' on my elf image, I expect to find some entry point
address
> that corresponds to 0x7423a0, but this is not the case. 

Why would you expect that?  It's a dynamically allocated chunk of memory
that holds the device tree that is passed to the kernel.  It's not an
entry
point; the entry point to the kernel is zero.

-Scott