U-Boot does not boot from MicroSD card >1 USB storage devices are present

U-Boot does not boot from MicroSD card >1 USB storage devices are present

[Eimar Koort]

Hi all,

There seems to be a bug in combination with RPI4 and 2 HDD-s are connected over same USB port. When HDD-s are present, then u-boot is not able to boot up OS from SD card.
Created a FreeBSD bug report about this issue. However it seems not to be FreeBSD problem, but U-Boot bug instead.

I have to mention that all this worked with older RPI4 firmware and U-Boot 2020.10, which came with then Freebsd13-current. Some updates (including rpi firmware update) later it stopped working.

Steps to reproduce: take USB HUB, attach 2 or more HDD/usb thumb drives or something like that, connect it to RPI and try to boot up from SD card.

Longer reading and much more details can be found here:

Newer bug report created by Roger Leigh:
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=256441

And an older one:
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=253983

Regards,
-- 
Eimar Koort
( eimar.koort@tutamail.com )