Document a lot of sparc64 internals.

Submitted by:	marius
Reviewed by:	ru
Approved by:	re (blanket)
X-MFC:		not before the code in RELENG_5 matches
		these man pages or vice versa

1 files changed, 82 insertions, 0 deletions

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+.\"-
+.\" Copyright (c) 2004 Jason L. Wright (jason@thought.net)
+.\" 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.
+.\"
+.\"	from: OpenBSD: fhc.4,v 1.5 2004/09/28 21:42:59 jmc Exp
+.\" $FreeBSD$
+.\"
+.Dd June 18, 2005
+.Dt FHC 4 sparc64
+.Os
+.Sh NAME
+.Nm fhc
+.Nd "FireHose controller and bus"
+.Sh SYNOPSIS
+.Cd "device fhc"
+.Sh DESCRIPTION
+The
+.Nm
+driver provides support for the
+.Tn FireHose
+controllers and busses found in
+.Tn Sun Enterprise xx00
+systems.
+These controllers are also used for board level functions on these systems.
+Each board has three status LEDs labeled
+.Dq Li Power ,
+.Dq Li Failure
+and
+.Dq Li Cycling .
+The
+.Dq Li Cycling
+LEDs can be made to blink by writing
+.Tn ASCII
+strings to the
+.Pa /dev/led/board Ns Ar N
+devices where
+.Ar N
+represents the physical slot number of the board.
+.Sh FILES
+.Bl -tag -width ".Pa /dev/led/board Ns Ar N"
+.It Pa /dev/led/board Ns Ar N
+board
+.Ar N
+LED device node
+.El
+.Sh SEE ALSO
+.Xr central 4 ,
+.Xr clkbrd 4 ,
+.Xr eeprom 4 ,
+.Xr led 4 ,
+.Xr uart 4
+.Sh HISTORY
+The
+.Nm
+driver first appeared in
+.Fx 5.1 .
+.Sh AUTHORS
+The
+.Nm
+driver was written by
+.An "Jake Burkholder" Aq jake@FreeBSD.org .