Add device to access and modify Open Firmware NVRAM settings in

PowerPC-based Apple's machines and small utility to do it from
userland modelled after the similar utility in Darwin/OSX.

Only tested on 1.25GHz G4 Mac Mini.

MFC after:	1 month

2 files changed, 65 insertions, 0 deletions

diff --git a/share/man/man4/man4.powerpc/Makefile b/share/man/man4/man4.powerpc/Makefile
new file mode 100644
index 0000000..55d73ad
--- /dev/null
+++ b/share/man/man4/man4.powerpc/Makefile
@@ -0,0 +1,7 @@
+# $FreeBSD$
+
+MAN=	powermac_nvram.4
+
+MANSUBDIR=/powerpc
+
+.include <bsd.prog.mk>
diff --git a/share/man/man4/man4.powerpc/powermac_nvram.4 b/share/man/man4/man4.powerpc/powermac_nvram.4
new file mode 100644
index 0000000..e8b18ef
--- /dev/null
+++ b/share/man/man4/man4.powerpc/powermac_nvram.4
@@ -0,0 +1,58 @@
+.\"-
+.\" Copyright (c) 2006 Maxim Sobolev <sobomax@FreeBSD.org>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+.\" WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+.\" DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
+.\" INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+.\" (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+.\" SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+.\" STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+.\" ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+.\" POSSIBILITY OF SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd August 1, 2006
+.Dt POWERMAC_NVRAM 4 powerpc
+.Os
+.Sh NAME
+.Nm powermac_nvram
+.Nd "non-volatile RAM"
+.Sh SYNOPSIS
+.Cd "device powermac_nvram"
+.Sh DESCRIPTION
+The
+.Nm
+driver provides access to the Open Firmware configuration NVRAM
+available on the Apple PowerPC-based machines.
+.Sh SEE ALSO
+.Xr nvram 8 ,
+.Xr eeprom 8
+.Sh HISTORY
+The
+.Nm
+driver first appeared in
+.Fx 7.0 .
+.Sh AUTHORS
+The
+.Nm
+driver was written by
+.An Maxim Sobolev Aq sobomax@FreeBSD.org .
+.Sh BUGS
+Currently,
+.Nm
+driver only supports systems equipped with AMD flash part and is only
+tested on Apple G4-based Mac Mini machines.