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Ebony development board

DISCUSSION Zoltan HERPAI 3 participants 3 messages Feb 9, 2008 – Feb 11, 2008

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Zoltan HERPAI

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Hi,

I've recently got an Ebony board (440GP) with the original bootloader (440GP 1.18 ROM Monitor) which I would like to replace with U-boot. Is there a way to boot an U-boot image via TFTP to replace the bootloader, or is it possible only with using a JTAG? I've googled through the mailing list, but most of the related hits are dated back in 2004-2005, they say no, one have to use JTAG, but some time passed since then, and I would like to know if there is a way for this.

Thanks in advance,
Zoltan HERPAI

#1 lore raw

Hi Zoltan,

Quoted 7 lines · Zoltan HERPAI

I've recently got an Ebony board (440GP) with the original bootloader (440GP 1.18 ROM Monitor) which I would like to replace with U-boot. Is there a way to boot an U-boot image via TFTP to replace the bootloader, or is it possible only with using a JTAG? I've googled through the mailing list, but most of the related hits are dated back in 2004-2005, they say no, one have to use JTAG, but some time passed since then, and I would like to know if there is a way for this.

Does the original ROM monitor support writing to onboard FLASH? If yes, it should be possible.

Best regards,
Stefan

#2 lore raw
Quoted 11 lines · On Mon, 11 Feb 2008 07:20:12 +0100 Stefan Roese <[email protected]> wrote:

Hi Zoltan,

Quoted 7 lines · Zoltan HERPAI

I've recently got an Ebony board (440GP) with the original bootloader (440GP 1.18 ROM Monitor) which I would like to replace with U-boot. Is there a way to boot an U-boot image via TFTP to replace the bootloader, or is it possible only with using a JTAG? I've googled through the mailing list, but most of the related hits are dated back in 2004-2005, they say no, one have to use JTAG, but some time passed since then, and I would like to know if there is a way for this.

Quoted 2 lines

Does the original ROM monitor support writing to onboard FLASH? If yes, it should be possible.

It doesn't. Theoretically, you can boot Linux and use MTD on the flash to load U-Boot. I wouldn't recommend it without a JTAG debugger around to fix things in case they get screwed up.

josh