You could try to see if the kernel hangs but it prints something
checking __log_buf. In this way you can try to understand the problem.

Marco

Nandini Hengen ha scritto:
> Hello,
>          I have also downloaded U-Boot version u-boot-2009.3 Are any 
> additional patches for the MPC5200b-tiny necessary? In case of U-Boot 1.2 I 
> had u-boot-1.2.0.tar.bz2 and u-boot-1.2.0.mpc5200b-tiny-2.tar.gz which added 
> a patches directory to my main directory.
> 
> A few corrections to my previous email:
>   a.. I'm using the option ARCH=powerpc and the config and dtb options for 
> pcm030 which were present in the 2.6.29 Kernel-Sources I downloaded 
>   b.. The modules are basically functional (not toasted as yet ;-) - what I 
> meant to convey was that the kernel images don't seem to be able to boot and 
> the original images it shipped with are not there any longer. I can download 
> a new U-Boot version however. U-Boot 1.2 also seems to recognize the device 
> tree (pcm030.dtb transfered to 0x600000 and uImage to 0x400000 using tftp). I 
> get the message "Booting using flat device tree at 0x600000" when I try 
> booting with "bootm 0x400000 - 0x600000". After that it just hangs.
> I've mailed the Oselas.Phytec group - thanks for the tip.
> 
> Did you try one of the kernels generated by our board support package for 
> this 
> target?
> I tried the kernel image uImage-pcm032-2 from pengutronix (assuming it was 
> wrapped) and another pcm030 image which I compiled (generated using the 2.6.x 
> sources on the Kit-CD downloaded from Pengutronix). Both don't seem to work 
> at the moment. Could you please provide me with some links to suitable 
> kernels or images for this target which are definitely functional ? I vaguely 
> remember having read somewhere about the hardware revision number of the 
> mentioned module not being compatible with some kernels - not too sure about 
> this.
> 
> 
> Best regards
> 
> Nandini Hengen
> 
> 
> 
> ----- Original Message ----- 
> From: "Wolfgang Denk" <w...@denx.de>
> To: "Nandini Hengen" <nhen...@hengen-ingenieure.de>
> Cc: <u-boot@lists.denx.de>
> Sent: Wednesday, April 01, 2009 3:53 PM
> Subject: Re: [U-Boot] Problem booting image + device tree (MPC5200B)
> 
> 
>> Dear "Nandini Hengen",
>>
>> In message <b11fc910abee42fda27a3d279e222...@cerec> you wrote:
>>>                   I currently have a problem with the device tree - the 
>>> kernel hangs after unpacking and trying to load the device tree.
>> ...
>>> U-Boot Version 1.2 incl. downloaded patches
>> ...
>>> combination with U-Boot 1.1.4). I also found a thread which recommended 
>>> using the newest U-Boot version and loading the dtb file using tftp into 
>>> RAM 
>>> separately. Since then I've been using U-Boot 1.2. Until now non of the 
>>> kernel images generated seem to load (apart from the image the module was 
>>> originally shipped with)
>> Rigth. The U-Boot versions you mntion are way too old to know about
>> device tree handling.
>>
>>> I tried this using two phytec modules - both of which are non-functional at 
>> Well, and incorrect kernel will not render a board non-functional.
>>
>>> I'm currently wondering whether to send back the modules to Phytec or 
>>> compiling a different kernel and device tree would help.
>> I recommend to get a recent version of U-Boot running.
>>
>> Best regards,
>>
>> Wolfgang Denk
>>
>> -- 
>> DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
>> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
>> Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de
>> The night sky over the planet Krikkit is the least interesting  sight
>> in the entire Universe.
>>                 - Douglas Adams _Life, the Universe, and Everything_ 
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