I've got a guruplug various mounts ago (already in june) and all works fine but recently i was planning to update the kernel and uboot.
So i started with the uboot and kernel provided on this site (2.6.33 and uboot.guruplug.bin) and both work fine flashed with openocd. (while still loading the kernel from tftp for now)
As i saw it was working well then i've attempted building an uboot from git.
so i've followed the instructions on the wiki except i've used the plug to build it in place a cross compilerhttp://www.openplug.org/plugwiki/index.php/Re-building_the_kernel_and_U-Boot
# git clone git://git.denx.de/u-boot-marvell.git
# cd u-boot-marvell.git
# git checkout -b testing origin/testing (with and without this)
# make mrproper
# make guruplug_config
# make u-boot.kwb
then I tried to flash either the u-boot.kwb and bin with openocd and uboot never started ... ever. reflashing again the previous one brings the unit back to life but still i don't get what i wish. I've also tried flashing it by following the instructions on http://kiserai.net/blog/2010/07/07/yet-another-guruplug-custom-kernel-howto
and i've also tried downloading the prebuilt one from http://oinkzwurgl.org/guruplug_uboot
and even applying those patches on the git repo and rebuilding all with no success.
I wonder what i'm doing wrong? to note the system running on it is debian stable (the preinstalled one) with backport repositories.
I've also tried running the hello_world.bin as explained on the last site i've listed after loading it from tftp i do go 0x0c100000 (enter) and the system locks up requiring a reset from the reset button.
Thanks for any help.