There is this old patch to get ubldr on arm64 but you'll need a uboot compiled with the uboot API.The board I'm trying has preinstalled uboot. The loader.efi won't boot. It looks like it don't read the UEFI environment variables from uboot or because of some other reason. How do I set these variables in uboot correctly, are the environment variables UEFI environment variables? It wasn't the FreeBSD version of uboot. In short, how do I use ubldr instead to load loader from the uboot?
Next question would be, which installation media would have ubldr in it? The RPI3 image had: u-boot.bin PCX ver. 2.5. It did not boot. How do I compile ubldr?
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