Maintainers for particular sims:
+aarch64 Nick Clifton <nickc@redhat.com>
+aarch64 Jim Wilson <jim.wilson@linaro.org>
arm Nick Clifton <nickc@redhat.com>
bfin Mike Frysinger <vapier@gentoo.org>
cr16 M R Swami Reddy <MR.Swami.Reddy@nsc.com>
m32r Doug Evans <dje@sebabeach.org>
m68hc11 Stephane Carrez <Stephane.Carrez@gmail.com>
microblaze Michael Eager <eager@eagercon.com>
+mips Maciej W. Rozycki <macro@imgtec.com>
moxie Anthony Green <green@moxielogic.com>
msp430 Nick Clifton <nickc@redhat.com>
rx DJ Delorie <dj@redhat.com>
common Ben Elliston <bje@gnu.org>
mips Andrew Cagney <ac131313@redhat.com>
mips Chris Demetriou <cgd@netbsd.org>
+mips Thiemo Seufer <ths@networkno.de>
ppc Geoff Keating <geoffk@geoffk.org>
ppc Andrew Cagney <cagney@gnu.org>