[U-Boot] Problem booting image + device tree (MPC5200B)

[Marco]

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" <wd at denx.de>
> To: "Nandini Hengen" <nhengen at hengen-ingenieure.de>
> Cc: <u-boot at 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 <B11FC910ABEE42FDA27A3D279E222940 at 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: wd at denx.de
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