what is the boot environment like for these type of platforms?
is it opensource or megs of blob?
It varies a lot by vendor. The older SiFive P550 is pretty good, see these forum threads: https://forums.sifive.com/t/where-is-the-source-code-of-the-... https://forums.sifive.com/t/building-opensbi-and-uboot/7681/...
alt Hacker News
It varies a lot by vendor. The older SiFive P550 is pretty good, see these forum threads: https://forums.sifive.com/t/where-is-the-source-code-of-the-... https://forums.sifive.com/t/building-opensbi-and-uboot/7681/...