[U-Boot-Users] Booting Standalone App?

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onyxtape

30 Jan 2008 30 Jan '08

12:51 a.m.

Hi there,

So what are the steps to get u-boot to boot the hello_world example? I'm evaluating the PowerPC 440-based AMCC Yosemite board. This is what I have done:

gzip hello_world.bin

mkimage -A ppc -0 linux -T standalone -C gzip -a 40000 -e 40004 -n "Standalone" -d hello_world.bin.gz hello_world.ub

Then I loaded the ub file onto the board at 0x40000. Then when I tried to bootm 40000, it would uncompress the standalone app (Uncompressing Standalone Application ... OK) then stop after showing 2 symbols.

What am I doing wrong?

I'm a complete newbie to u-boot and I've tried to find discussions online and reading the DULG, but I'm not having too much luck...

Thanks!

-- View this message in context: http://www.nabble.com/Booting-Standalone-App--tp15172456p15172456.html Sent from the Uboot - Users mailing list archive at Nabble.com.

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David Hawkins

30 Jan 30 Jan

1:49 a.m.

New subject: [U-Boot-Users] Booting Standalone App?

onyxtape wrote:

...

Hi there,

So what are the steps to get u-boot to boot the hello_world example? I'm evaluating the PowerPC 440-based AMCC Yosemite board.

Here are the notes I wrote for the Yosemite board, they include how to build the standard standalone example. Perhaps that will help you.

http://www.ovro.caltech.edu/~dwh/powerpc_440ep.pdf

Cheers, Dave

Wolfgang Denk

9:44 a.m.

New subject: [U-Boot-Users] Booting Standalone App?

In message 15172456.post@talk.nabble.com you wrote:

...

So what are the steps to get u-boot to boot the hello_world example? I'm evaluating the PowerPC 440-based AMCC Yosemite board. This is what I have done:

Please RTFM.

...

I'm a complete newbie to u-boot and I've tried to find discussions online and reading the DULG, but I'm not having too much luck...

Seems you didn't really try.

See http://www.denx.de/wiki/view/DULG/UBootStandalone and http://www.denx.de/wiki/view/DULG/MyStandaloneProgramDoesNotWork

Best regards,

Wolfgang Denk

onyxtape

7:39 p.m.

New subject: [U-Boot-Users] Booting Standalone App?

Wolfgang,

Thank you for your reply.

I've already read the documents that you have referenced before posting my first message. I had already gotten hello_world to run in u-boot without problems (by using the go command), so that is not an issue.

My original question was - is it possible to boot a standalone application like the hello_world example like a kernel? I did not see any reference materials which shows how this is done. I have not changed the code in hello_world, so the entry point should not have moved. Did I use mkimage correctly?

Thanks, Randy

See http://www.denx.de/wiki/view/DULG/UBootStandalone and http://www.denx.de/wiki/view/DULG/MyStandaloneProgramDoesNotWork

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@denx.de Save energy: Drive a smaller shell. ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ U-Boot-Users mailing list U-Boot-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users -- View this message in context: http://www.nabble.com/Booting-Standalone-App--tp15172456p15188816.html Sent from the Uboot - Users mailing list archive at Nabble.com.

Wolfgang Denk

31 Jan 31 Jan

1:09 a.m.

New subject: [U-Boot-Users] Booting Standalone App?

In message 15188816.post@talk.nabble.com you wrote:

...

I've already read the documents that you have referenced before posting my first message. I had already gotten hello_world to run in u-boot without problems (by using the go command), so that is not an issue.

Well, that's the documented way to start standalone applications.

The only documented way, IIRC.

...

My original question was - is it possible to boot a standalone application like the hello_world example like a kernel? I did not see any reference

Is it a kernel? No. Does any part of the documentation say it could be used like that? No.

...

materials which shows how this is done. I have not changed the code in hello_world, so the entry point should not have moved. Did I use mkimage correctly?

This question makes no sense to me.

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@denx.de If you can't beat it or corrupt it, you pretend it was your idea in the first place. - Terry Pratchett, _Guards! Guards!_

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David Hawkins
onyxtape
Wolfgang Denk