Problems with NSLU2 and U-Boot

[Bruce M Simpson]

I am trying to get the NSLU2 to natively boot FreeBSD from flash itself 
w/o any TFTP server.

Thanks to Rink and Rafal's help, I managed to get U-Boot installed and 
working on the Linksys NSLU2.
Using hints from the OpenMoko page, I generated a U-Boot image from an 
NSLU2 kernel build from -CURRENT, and managed to boot it over the 
network -- however -- the kernel is not coming up.
mkimage hints here: http://wiki.openmoko.org/wiki/FreeBSD

If I add 'options VERBOSE_SYSINIT' to the kernel config, I can see that 
the kernel is going off into space... right after init_turnstile0() is 
called.   MMU problems?

[I had to track this down with nm, as addr2line seems to only print the 
first patch.]

I saw similar symptoms when trying to boot with the simple ELF 
trampoline, from both RedBoot and U-Boot on the NSLU2. An ELF kernel 
loaded into RedBoot seemed to work just fine, providing the load address 
was given explicitly.

[Recall: The problem with RedBoot on the NSLU2 is that its boot-time 
settings cannot be changed, it is locked into executing a Linux-style 
image at a hard wired address, so a change of firmware may be necessary 
in order to boot FreeBSD natively on that platform.]

cheers
BMS