Build Vendor U-Boot on Rock 5B instructions outdated?

I’m having hard time with official u-boot guide: https://wiki.radxa.com/Rock5/guide/build-u-boot-on-5b

Unfortunately this wiki doesn’t specify which exact commits should be checked out, so after manually fixing binary paths in build/mk-uboot.sh it built, but resulting out/u-boot/spi/spi_image.img seems broken. After flashing SPI NOR and resetting device I get no output at all.

Does anybody know what commits of given 3 repositories should be checked out or what else can be done about it?

With kind regards