[U-Boot] powerpc/mpc8315erdb : Integration of customized source code to u-boot

[Krishna Mohan Chagaleti]

Hi Wolfgang Denk,

Thank you very much for your reply.
First of all, sorry for the confusion created in my previous email.

Before describing the actual problem, I would like to share the board and uboot details as below.

Board: Freescale
CPU: e300c3, MPC8315E, Rev: 1.2 at 400 MH3 MHz
I2C:y
DRAFLASH: 8 MB
NAND: 32 MiB

U-boot version: U-Boot 2009.03-rc2 (Dec 27 2012 - 13:41:26) MPC83XX (this is as per "version" command on my u-boot)

Coming to the problem details, I have written few customized applications to test RAM, Nand & Nor flash of my freescale board.
I compiled the applications using powerpc libraries (powerpc-e300c3-linux-gnu) and created ELF executable files.
I converted the ELF executables to binary format using the command "powerpc-e300c3-linux-gnu-objcopy".
When i tftp the binary files and run on u-boot giving the entry-point address(using "go" command), the u-boot is getting reset.
So, i want to know how can i overcome this situation and execute my binary file successfully. This is the first part as per your email.
The above procedure is executed with the reference: http://www.denx.de/wiki/view/DULG/MyStandaloneProgramDoesNotWork

The second part is about integrating my applications as part of u-boot examples/apis permanenetly so that i can run them whenever i wish to.
For example, i see the command "echo" and can run it on u-boot prompt anytime. Can i also embed my application and make it as part of commands.
The whole idea is to make my binaries part of u-boot when it gets loaded.

Sorry for a lengthy email. Please let me know if you still require any further details.

Thank you.

Warm Regards,
-Krishna


________________________________________
From: Wolfgang Denk [wd at denx.de]
Sent: Thursday, December 27, 2012 6:26 PM
To: Krishna Mohan Chagaleti
Cc: u-boot at lists.denx.de; scottwood at freescale.com
Subject: Re: [U-Boot] powerpc/mpc8315erdb : Integration of customized source code to u-boot

Dear Krishna Mohan Chagaleti,

In message <C1C8A20BBB404A44975107148C578C459B6667 at MBX01-TPM.mimos.local> you wrote:
>
> I have been trying to test and integrate my customized binary on u-boot.
>
> I tried the procedure of executing the example demo application
> (hello_world.bin) by downloading binary using tftp and executing it.
> But, it didn't help though.

What exactly was the problem? Which exact commands did you run, and
what was the results / error messages / output?

On which exact board are you working, and which exact version of
U-Boot are you using.

> I wanted to know if there is any procedure to integrate my customized
> applications to u-boot environment and run as commands once the
> u-boot is loaded.

Please explan what you really want to do. The first part sounds as if
you wanted to run some standalone applications written by yourself.
The second part ("run as commands") sounds as if you wanted to extend
the functionality of U-Boot itself. Please note that these are
different things.

> Please let me know if you require more details.

Yes, we need a lot more details, see above. [It may help to read
http://www.catb.org/~esr/faqs/smart-questions.html , too.]

Best regards,

Wolfgang Denk

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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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