[U-Boot] Running vanilla u-boot v2012.10 on Guruplug

[Jason Cooper]

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.