Merge from projects/mips to head by hand:

Copy over MALTA64, the 64-bit varianat of the malta board...

sys/mips/conf/MALTA64

@@ -0,0 +1,72 @@
+# MALTA -- Kernel config for MALTA boards
+#
+# For more information on this file, please read the handbook section on
+# Kernel Configuration Files:
+#
+#    http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
+#
+# The handbook is also available locally in /usr/share/doc/handbook
+# if you've installed the doc distribution, otherwise always see the
+# FreeBSD World Wide Web server (http://www.FreeBSD.org/) for the
+# latest information.
+#
+# An exhaustive list of options and more detailed explanations of the
+# device lines is also present in the ../../conf/NOTES and NOTES files. 
+# If you are in doubt as to the purpose or necessity of a line, check first 
+# in NOTES.
+#
+# $FreeBSD: projects/mips/sys/mips/conf/MALTA 192819 2009-05-26 17:01:12Z gonzo $
+
+ident		MALTA
+
+makeoptions	ARCH_FLAGS="-march=mips64 -mabi=64"
+makeoptions	MIPS_LITTLE_ENDIAN=defined
+makeoptions	TARGET_64BIT=t
+makeoptions	LDSCRIPT_NAME=	ldscript.mips.mips64
+
+options 	YAMON
+
+# Don't build any modules yet.
+makeoptions	MODULES_OVERRIDE=""
+
+options 	KERNVIRTADDR=0x80100000
+options 	TICK_USE_YAMON_FREQ=defined
+#options 	TICK_USE_MALTA_RTC=defined
+
+include		"../malta/std.malta"
+
+options		ISA_MIPS64
+
+hints		"MALTA.hints"		#Default places to look for devices.
+
+makeoptions	DEBUG=-g		#Build kernel with gdb(1) debug symbols
+
+options 	DDB
+options 	KDB
+
+options 	SCHED_4BSD		#4BSD scheduler
+options 	INET			#InterNETworking
+options 	NFSCLIENT		#Network Filesystem Client
+options 	NFS_ROOT		#NFS usable as /, requires NFSCLIENT
+options 	PSEUDOFS		#Pseudo-filesystem framework
+options 	_KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions
+
+options 	FFS			#Berkeley Fast Filesystem
+options 	SOFTUPDATES		#Enable FFS soft updates support
+options 	UFS_ACL			#Support for access control lists
+options 	UFS_DIRHASH		#Improve performance on big directories
+options 	ROOTDEVNAME=\"ufs:ad0s1a\"
+
+
+# Debugging for use in -current
+options 	INVARIANTS		#Enable calls of extra sanity checking
+options 	INVARIANT_SUPPORT	#Extra sanity checks of internal structures, required by INVARIANTS
+#options 	WITNESS			#Enable checks to detect deadlocks and cycles
+#options 	WITNESS_SKIPSPIN	#Don't run witness on spinlocks for speed
+
+device		loop
+device		ether
+device		le
+device		miibus
+device		md
+device		uart