FreeBSD/amd64 on machine without ACPI BIOS?

[Lev Serebryakov]

Hello, Freebsd-current.

  Soekris ("famous" developer of small x86-compatible appliance-like
hardware) released net6501 some time ago, which is based on Atom (E6xx)
CPU.
  It seems, that 64-bit version of Linux could run on it without
problems.
  But FreeBSD/amd64 can not. It stops after kernel detect some
devices without any errors or panics.
  This box has one big difference from billions other Intel-based
boxes on market: it has very special BIOS without ACPI at all. Someone
says, that it could be reason why FreeBSD/amd64 could not be boot on
this box.
 Is it true? Is it possible to have FreeBSD/amd64 without ACPI?

-- 
// Black Lion AKA Lev Serebryakov <lev at FreeBSD.org>