G5 Mac and powerpc64?

[Torfinn Ingolfsen]

Ok, so now my Mac G5 quad runs FreeBSD 8.2-release:
root at kg-g5# uname -a
FreeBSD kg-g5.kg4.no 8.2-RELEASE FreeBSD 8.2-RELEASE #0: Sat Feb 19
01:18:47 UTC 2011
root at xserve.lan.xcllnt.net:/usr/obj/usr/src/sys/GENERIC  powerpc

However, since this is 32-bits, it only sees 2 GB of the memory:
root at kg-g5# dmesg | head -19
Copyright (c) 1992-2011 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
	The Regents of the University of California. All rights
reserved. FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 8.2-RELEASE #0: Sat Feb 19 01:18:47 UTC 2011
    root at xserve.lan.xcllnt.net:/usr/obj/usr/src/sys/GENERIC powerpc
Preloaded elf kernel "/boot/kernel/kernel" at 0x95d000.
cpu0: IBM PowerPC 970MP revision 1.1, 18446744071914.99 MHz
cpu0: Features dc000000<PPC32,PPC64,ALTIVEC,FPU,MMU>
cpu0: HID0 1511081<DEEPNAP,NAP,DPM,NHR,TBEN,ENATTN>
real memory  = 2127781888 (2029 MB)
available KVA = 490659839 (467 MB)
Physical memory chunk(s):
0x00018000 - 0x000fffff, 950272 bytes (232 pages)
0x017ec000 - 0x017fffff, 81920 bytes (20 pages)
0x01813000 - 0x01bfffff, 4116480 bytes (1005 pages)
0x01c3a000 - 0x03ffffff, 37511168 bytes (9158 pages)
0x08000000 - 0x7c9f6fff, 1956605952 bytes (477687 pages)
avail memory = 1996570624 (1904 MB)


Is there a way to get a 64-bits version of FreeBSD 8.2 onto this
machine? (I couldn't find a 8.2 powerpc64 image)
-- 
Torfinn