[U-Boot-Users] Booting ELDK 4.0 kernel on MPC8548CDS

[Demke Torsten-atd012]

Hi Thoomas,

I see a similar problem when using of-tree. My debugging shows
that the of-tree address given to the kernel is outside the memory
region that can be accessed by the kernel at start-up (defined
by CFG_BOOTMAPSZ), thus the kernel crashes very early without any
output.
(IMHO this is a bug.)
If you are using CONFIG_OF_FLAT_TREE _and_ "disable_of" ist likely that
you see the same behaviour, because in that case the "bootm" code
still uses the of-tree address (char *of_flat_tree), after copying the
standard bd_info data to that address.
You could check the pointer that is given to the kernel for the
board info data (line 967, parameter 1 of (*kernel) (...))
(or change (*kernel) ((bd_t *)of_flat_tree,...
to (*kernel) (kbd,...)

Regards,
Torsten


> -----Original Message-----
> From: u-boot-users-bounces at lists.sourceforge.net 
> [mailto:u-boot-users-bounces at lists.sourceforge.net] On Behalf 
> Of Thomas Schafer
> Sent: Mittwoch, 22. November 2006 19:56
> To: u-boot-users at lists.sourceforge.net
> Subject: [U-Boot-Users] Booting ELDK 4.0 kernel on MPC8548CDS
> 
> Hi,
> 
> I'm using a MPC8548CDS eval system with u-boot 1.1.6 running 
> on it. When trying to boot an ELDK 4.0 kernel, the board 
> hangs immediately after decompression of the kernel. I've set 
> the disable_of environment variable to avoid usage of the 
> flat device tree.
> 
> The same kernel boots properly when using u-boot 1.1.3 which 
> is delivered with the eval system.
> 
> Any hints would be appreciated.
> 
> Best regards,
> 
> Thomas Schafer
> 
> ____________________________________
> 
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> 
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