[Bug 269181] sysutils/u-boot-rpi-arm64: RPi4/8G fails to boot: "** Reading file would overwrite reserved memory **"

From: <bugzilla-noreply_at_freebsd.org>
Date: Mon, 06 Feb 2023 02:12:32 UTC

--- Comment #4 from Mark Millard <marklmi26-fbsd@yahoo.com> ---
FYI . . .

I've tried some official main [so: 14] snapshots released
today on the few types of systems that I have access to
that I boot via U-Boot. These snapshots are using 2023.01
of U-Boot.

The following booted, no "would overwrite reserved memory"
report from U-Boot involved:

RPi2B v1.1 (so: armv7)      Used: microsd card media
RPi3B      (so: aarch64)    Used: USB3 boot media + microsd card bootcode.bin
           (But see later note.)
B0T 4 GiByte RPi4B Rev 1.1  Used: same USB3 boot media, no microsd card
4 GiByte Rock64             Used: microsd card media

Note: When the USB3 media a was used in the RPi3B, usb
      reset would not find the drive unless I did something
      like "setenv usb_gpood_delay 2000" first and did
      a "usb reset" after. This is using media I've not
      historically needed to do such for. Using the same
      media in the RPi4B's, I did not have this issue.
      I doubt that this is usefully related to what this
      bugzilla is about.

The following had the "would overwrite reserved memory"
report and failed to load the FreeBSD EFI loader because
of what it was reporting:

B0T 8 GiByte RPi4B Rev 1.4  Used: same USB3 boot media, no microsd card
C0T 8 GiByte RPi4B Rev 1.5  Used: same USB3 boot media, no microsd card

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