On 01/12/2013 09:41 PM, Jason wrote:
On Sat, Jan 12, 2013 at 08:41:36PM +0100, Dirk Heinrichs wrote:
Am Samstag 12 Januar 2013, 16:51:51 schrieb Wolfgang Denk:
Did you read the FAQ? Especially
http://www.denx.de/wiki/view/DULG/CanUBootBeConfiguredSuchThatItCanBeStarted
InRAM ?
Now I did :) Thanx a lot.
Interesting that [1] states it's possible, though...
With the dreamplug, I often load u-boot into RAM via the JTAG (0x0600000
and 0x0800000), and then 'resume 0x0600000'. Then use the u-boot
running from 0x0600000 to burn the image to SPI flash from 0x0800000.
But that's loaded via the JTAG, not from a running u-boot.
I think I posted instructions to this mailinglist a while ago about
this. If you have the JTAG (it's only $35US), I would advise trying
that.
For what is worth, I can confirm above for the dreamplug..
I wrote this down a once...:
cd /where/uboot_is
sudo openocd -f /usr/share/openocd/scripts/board/sheevaplug.cfg
# other console
telnet localhost 4444
sheevaplug_init
load_image u-boot
load_image u-boot.kwb 0x0800000
resume 0x0600000
# and hit stop in the serial terminal
no Idea about the guruplug though..
Regards,
Jeroen
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