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Date:      Wed, 14 Oct 2020 08:18:16 +0200
From:      Klaus Cucinauomo <maciphone2@googlemail.com>
To:        Mark Millard <marklmi@yahoo.com>, freebsd-arm@freebsd.org
Subject:   Re: 64-bit RPi4B u-boot hangup with modern rpi firmware: some information (but investigative-toolbox limited)
Message-ID:  <8EB23BD2-15C0-4679-87A9-87FE5906A7EA@googlemail.com>
In-Reply-To: <C8A5CA35-A18A-41C0-A18E-2837CED23BB4@yahoo.com>
References:  <290E51C0-0AF5-4C75-AA7B-BA56DF1AFDFB@yahoo.com> <4114B1A0-03ED-4268-BA87-8CF196A935A4@googlemail.com> <F439DCA4-481E-4918-9ED4-2D9ECB2DD03F@yahoo.com> <D63E3FD9-72AD-4C61-BBA6-323D8FCA5775@googlemail.com> <C8A5CA35-A18A-41C0-A18E-2837CED23BB4@yahoo.com>

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> Am 14.10.2020 um 07:52 schrieb Mark Millard <marklmi@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.



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