[U-Boot-Users] U-Boot 1.2 - Cannot run hello_world - Coldfire

[Arun Biyani]

Ganesh Chandra Patro wrote:
> -----Original Message-----
> From: u-boot-users-bounces at lists.sourceforge.net
> [mailto:u-boot-users-bounces at lists.sourceforge.net]On Behalf Of Arun
> Biyani
> Sent: 15 June, 2007 Friday 11:00 PM
> To: Wolfgang Denk
> Cc: u-boot-users at lists.sourceforge.net
> Subject: Re: [U-Boot-Users] U-Boot 1.2 - Cannot run hello_world -
> Coldfire
>
>
> Wolfgang Denk wrote:
>   
>> Eventually you did not download the binary image?
>>
>> Best regards,
>>
>> Wolfgang Denk
>>
>>
>>     
> This morning, I also tried to run the .bin file (hello_world.bin).
> U-Boot just hung up. Current status
> is, the hello_world program in the distribution (unmodified) does not
> run on Coldfire based board.
> I tried this on our target board as well as a CSB360 board from Cogent
> Computers. I tried both
> the hello_world.srec file and the hello_world.bin file.
>
> Any ideas as to what I can do to make simple applications run in U-Boot
> on Coldfire? Has anyone
> else tried this?
>
> Thx
>
> Hi Arun,
> There is a specific way to run a bin file. First you have to load to a
> specific memory location let's say 0x2000. You have find the entry point
> address of the bin from it's symbol table and assuming the flash start
> address of the bin file 0, add 0x2000 to know the entry point address of the
> bin in the memory just loaded. Now say go "address" on the CLI. The program
> will run. Every time you load to a different address you need to find the
> actual physical address. That's why loading an ELF is easier than a bin from
> CLI. The same bin or srec can be burnt and run from the flash, but running a
> bin would involve this much to do be done.
>
> Thanks and Regards
>
> Ganesh Chandra Patro
> SoftDel Systems Ltd
> "ACROPOLIS", 2nd Floor
> Marol Maroshi
> Military Road
> Andheri(East)
> Mumbai - 400 059
>
>
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>   
Ganesh, Thx for your response.

The program "hello_world" is part of the release package. I've verified that
the entry point is indeed "0x20000". So, the problem is something else. 
Can anyone think of what else
might be the cause? I have 2-3 previous posts on the same subject.

The documentation does not talk about running "elf" files. Could someone 
give me a basic intro?
Arun