On Sat, Jan 12, 2013 at 10:30:58PM +0100, Jeroen Hofstee wrote: > 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
Yep, this is exactly what I have. > no Idea about the guruplug though.. It should work fine (unless you broke something, but that's the whole point of this exercise, isn't it ;-) ). If you get a u-boot command prompt in your serial window after 'resume 0x0600000', then you just successfully tested your u-boot. hth, Jason. _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
