additional sparc64 machines supported

[Marius Strobl]

FYI, the current set of snapshots [1] additionally supports the following
machines:

o Fujitsu (Siemens) PRIMEPOWER 250 (likely also 450, 650 and 850)
o Sun Fire B100s server blades (for the Sun Fire B1600 platform; previously
  it was impossible to use the on-board NICs thus these machines were pretty
  much useless with FreeBSD)
o Sun Fire V890 (likely also V490, so far both only with non-mixed US-IV/IV+
  CPU-configurations though due to unsolved timekeeping problems; performance
  with US-IV+ CPUs not yet isn't were it should be though)

Also problems with Schizo version 7 bridges (actually the firmware of these
machines) triggering panics during boot are solved in these snapshots.

Marius

[1]:
ftp://ftp.freebsd.org/pub/FreeBSD/snapshots/201005/FreeBSD-9.0-CURRENT-201005-sparc64-disc1.iso
ftp://ftp.freebsd.org/pub/FreeBSD/snapshots/201005/FreeBSD-8.1-PRERELEASE-201005-sparc64-disc1.iso
ftp://ftp.freebsd.org/pub/FreeBSD/snapshots/201005/FreeBSD-7.3-STABLE-201005-sparc64-disc1.iso