maxime louvel wrote:

Hi,

I am trying to make a 2.6.24 vanilla kernel boot (an work fine in a 
second time) on a mpc8548amc board.
I have add the platform specific stuff from the sources of the current 
kernel running on the cards.
What I have basically add is:
- a folder mpc8548amc, in the config/platform directory, which allow to 
select the mpc8548amc as the supported platform
- add the following files:
  - arch/ppc/configs/mpc8548amc_defconfig
  - arch/ppc/configs/platforms/85xx/mpc_8548_amc.h and .c
- I have used the dts of an another platform (mpc8548cds) which seems 
quite the same, but I haven't got any confirmation of that yet.

Uh, let's clear up minor confusion here.  Are you using
ARCH=ppc or ARCH=powerpc?  I'm surprised to see that there
is mention of arch/ppc/... above.  Are you sure this is an
ARCH=ppc build?  You won't need a DTS file at all then.

But if you are using a DTS file, and I suspect you should,
then this is ARCH=powerpc.

When I am booting the kernel image I get:

AMC=> dhcp 0x1000000 uImage.amc.2.6.24
Speed: 1000, full duplex
BOOTP broadcast 1
DHCP client bound to address 10.255.255.2 <http://10.255.255.2/>
Using eTSEC0 device
TFTP from server 0.0.0.0 <http://0.0.0.0/>; our IP address is 
10.255.255.2 <http://10.255.255.2/>; sending through gateway 10.1.1.1 
<http://10.1.1.1/>
Filename 'uImage.amc.2.6.24'.
Load address: 0x1000000
Loading: ##############################
###################################
        #################################################################
        #################################################################
        #################################################################
        #################################################################
        ###########################
done
Bytes transferred = 1802102 (1b7f76 hex)
AMC=> bootm 0x1000000
## Booting image at 01000000 ...
  Image Name:   Linux-2.6.24
  Image Type:   PowerPC Linux Kernel Image (gzip compressed)
  Data Size:    1802038 Bytes =  1.7 MB
  Load Address: 00000000
  Entry Point:  00000000
  Verifying Checksum ... OK
  Uncompressing Kernel Image ... OK

No further messages...

Does someone has an idea ?

thanks,
Maxime

Did you download a DTB file and use it on the bootm
command?  Nope.

This is really a FAQ failure mode.  Are you sure
you have the console set up properly?  Any chance
you can get to the __log_buf with a BDI-2000?

Thanks,
jdl