document mac68k backplane bus

ok jmc@ nick@

4 files changed, 49 insertions, 6 deletions

diff --git a/share/man/man4/man4.mac68k/Makefile b/share/man/man4/man4.mac68k/Makefile
index c3d027f3afd..922b8d7e923 100644
--- a/share/man/man4/man4.mac68k/Makefile
+++ b/share/man/man4/man4.mac68k/Makefile
@@ -1,9 +1,9 @@
 #	from: @(#)Makefile	5.1 (Berkeley) 6/29/90
-#	$OpenBSD: Makefile,v 1.11 2005/01/29 13:38:37 martin Exp $
+#	$OpenBSD: Makefile,v 1.12 2005/02/27 22:11:03 martin Exp $
 
-# TODO intvid nubus macvid grf ite
+# TODO intvid macvid grf ite
 MAN=	adb.4 ae.4 asc.4 autoconf.4 esp.4 intro.4 mainbus.4 mc.4 mem.4 \
-	ncrscsi.4 obio.4 sn.4 zsc.4
+	ncrscsi.4 nubus.4 obio.4 sn.4 zsc.4
 MLINKS=	mem.4 kmem.4 \
 	ncrscsi.4 sbc.4 \
 	zsc.4 zstty.4
diff --git a/share/man/man4/man4.mac68k/mainbus.4 b/share/man/man4/man4.mac68k/mainbus.4
index b797b171c08..4ab60640246 100644
--- a/share/man/man4/man4.mac68k/mainbus.4
+++ b/share/man/man4/man4.mac68k/mainbus.4
@@ -28,7 +28,7 @@
 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.\"	$OpenBSD: mainbus.4,v 1.5 2003/03/22 08:07:12 david Exp $
+.\"	$OpenBSD: mainbus.4,v 1.6 2005/02/27 22:11:03 martin Exp $
 .\"	$NetBSD: mainbus.4,v 1.1 1997/07/18 02:13:40 ender Exp $
 .\"
 .Dd July 2, 1997
@@ -53,7 +53,7 @@ connected to the
 main processor bus.
 .Sh SEE ALSO
 .Xr intro 4 ,
-.\" .Xr nubus 4 ,
+.Xr nubus 4 ,
 .Xr obio 4
 .Sh HISTORY
 The
diff --git a/share/man/man4/man4.mac68k/nubus.4 b/share/man/man4/man4.mac68k/nubus.4
new file mode 100644
index 00000000000..653b0f18a84
--- /dev/null
+++ b/share/man/man4/man4.mac68k/nubus.4
@@ -0,0 +1,42 @@
+.\"	$OpenBSD: nubus.4,v 1.1 2005/02/27 22:11:03 martin Exp $
+.\"
+.\" Copyright (c) 2004 Martin Reindl <martin@openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd February 24, 2005
+.Dt NUBUS 4 mac68k
+.Os
+.Sh NAME
+.Nm nubus
+.Nd Mac68k nubus support and drivers
+.Sh SYNOPSIS
+.Cd "nubus0 at mainbus?"
+.Sh DESCRIPTION
+The
+.Nm
+is a simple backplane bus found on numerous mac68k machines.
+Only extension boards are supported.
+The
+.Nm
+90 IEEE Std 1196-1987 defines the bus protocol as well as the electrical and
+mechanical properties of the extension slots.
+.Sh SEE ALSO
+.Xr ae 4 ,
+.\" .Xr macvid 4 ,
+.Xr sn 4
+.Sh HISTORY
+The
+.Nm
+driver first appeared in
+.Ox 1.2 .
diff --git a/share/man/man4/man4.mac68k/obio.4 b/share/man/man4/man4.mac68k/obio.4
index b3b91654fa7..c540b8104aa 100644
--- a/share/man/man4/man4.mac68k/obio.4
+++ b/share/man/man4/man4.mac68k/obio.4
@@ -28,7 +28,7 @@
 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.\"	$OpenBSD: obio.4,v 1.12 2005/01/29 13:38:37 martin Exp $
+.\"	$OpenBSD: obio.4,v 1.13 2005/02/27 22:11:03 martin Exp $
 .\"	$NetBSD: obio.4,v 1.1 1997/07/18 02:13:40 ender Exp $
 .\"
 .Dd July 2, 1997
@@ -53,6 +53,7 @@ onboard I/O bus.
 .Xr asc 4 ,
 .Xr esp 4 ,
 .Xr intro 4 ,
+.\" .Xr intvid 4 ,
 .Xr mainbus 4 ,
 .Xr mc 4 ,
 .Xr ncrscsi 4 ,