64-bit RPi4B u-boot hangup with modern rpi firmware: some information (but investigative-toolbox limited)

[Klaus Cucinauomo]

> Am 14.10.2020 um 07:52 schrieb Mark Millard <marklmi at yahoo.com>:
> 
> …...FreeBSD requires services from
> armstub8-gic.bin that are not otherwise present as things
> are (or that is my understanding).

as of today:  correct understanding

> 
> ... I'll test vintages of start4*.elf and fixup4*.dat
> pairs and see if that identifies a specific set of changes
> to them...

IIRC „we" can hack armstubs but  we cannot hack  start4*.elf &  fixup4*.dat ,
but you can take a hexdump of start4*.elf  to compare changes  if you feel like it,
while I doubt that will easy find the cause(s)..

K.