Comment # 15 on bug 1208173 from Aaron Puchert

(In reply to Andreas Schwab from comment #14)
> u-boot-spl.bin.normal.out is part of the visionfive2-firmware package.

That seems to do it, whereas u-boot-starfivevisionfive2 doesn't seem to be
necessary. Here is what I did after installing visionfive2-firmware:

sf probe
load mmc 1:3 0xa0000000
/usr/share/visionfive2-firmware/u-boot-spl.bin.normal.out
sf update 0xa0000000 0x0 $filesize
load mmc 1:3 0xa0000000 /usr/share/visionfive2-firmware/u-boot.itb
sf update 0xa0000000 0x100000 $filesize

The firmware prints no banner, but then boots without additional changes.
Thanks!