rpi4 updated eeprom

[tech-lists]

On Thu, Sep 24, 2020 at 06:05:32PM +0200, Klaus Cucinauomo wrote:
>Hi John,
>
>please read again : https://wiki.freebsd.org/arm/Raspberry%20Pi#RPI4 with special attention to your topic ,
>so it’s an expected behavior that after an eeprom-upgrade you have to update the files you mentioned.
>If you encounter fbsd-boot-(or other)issues AFTER you followed the upgrade-steps,
>it’s time to discuss/test u-boot related details with Rob ,
> but only AFTER you’ve installed the matching boot-files (which will probably solve your problem before)…

Hello Klaus,

I updated the firmware from a sdcard made specially
for the puropse, as per
https://github.com/raspberrypi/rpi-eeprom/blob/master/firmware/release-notes.md

Looking at the site you posted, it's unclear to me whether all the files, some
of them or just start4.elf and fixup4.dat from
https://github.com/raspberrypi/firmware/blob/master/boot need to be
overwritten now on the (ms-dos portion) of the freebsd sdcard. Bear in mind 
that before I started updating the eeprom, I had already applied Rob's patch,
so yes was careful especially about bcm2711-rpi-4-b.dtb.

Anyhow, I grabbed master.zip from that site, unzipped it, backed up the old
start4.elf and fixup4.dat, copied the new ones over, plugged the card into the
pi and what I get now is the rainbow screen and that's it.

I'll revert the change (those two files) to get freebsd back again. 
-- 
J.
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