diff options
author | raj <raj@FreeBSD.org> | 2010-07-14 13:03:00 +0000 |
---|---|---|
committer | raj <raj@FreeBSD.org> | 2010-07-14 13:03:00 +0000 |
commit | 189daad0ad43b75dc71517a777d02c5e3e86a3f8 (patch) | |
tree | 8b829dd943ac62ae0a31cdb7acc87962e09bb8a8 /share/man/man4/simplebus.4 | |
parent | 3eb85b7ef3c7ec74799814202a92d83de8545fc4 (diff) | |
download | FreeBSD-src-189daad0ad43b75dc71517a777d02c5e3e86a3f8.zip FreeBSD-src-189daad0ad43b75dc71517a777d02c5e3e86a3f8.tar.gz |
Provide initial man pages for Flattened Device Tree support and the common
drivers.
Sponsored by: The FreeBSD Foundation
Diffstat (limited to 'share/man/man4/simplebus.4')
-rw-r--r-- | share/man/man4/simplebus.4 | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/share/man/man4/simplebus.4 b/share/man/man4/simplebus.4 new file mode 100644 index 0000000..72bc0e8 --- /dev/null +++ b/share/man/man4/simplebus.4 @@ -0,0 +1,81 @@ +.\" +.\" Copyright (c) 2010 The FreeBSD Foundation +.\" All rights reserved. +.\" +.\" This software was developed by Semihalf under sponsorship from +.\" the FreeBSD Foundation. +.\" +.\" 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 AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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 July 12, 2010 +.Dt SIMPLEBUS 4 +.Os +.Sh NAME +.Nm simplebus +.Nd ePAPR simple-bus driver +.Sh SYNOPSIS +.Cd "options FDT" +.Sh DESCRIPTION +This bus driver is dedicated for the +.Pa simple-bus +node of a flattened device tree compliant with the +.Pa ePAPR +specification. +.Pp +The +.Nm +entity does not represent any physical element by itself, it is rather an +umbrella node grouping integrated on-chip peripherals like interrupt +controller, connectivity controllers, accelerating engines and so on. +.Pp +The driver is generic and common for all flattened device tree nodes claiming +.Pa simple-bus +compatibility. It iterates over direct descendants of the +.Pa simple-bus +node, instantiates newbus children and assigns resources to them, based on the +configuration data retrieved from the nodes properties in +.Xr fdt 4 . +.Pp +Note the +.Nm +does not manage device resources and passes through any requests to the +.Xr fdtbus 4 layer. +.Sh SEE ALSO +.Xr fdt 4 , +.Xr fdtbus 4 , +.Xr openfirm 4 , +.Sh STANDARDS +Power.org Standard for Embedded Power Architecture Platform Requirements +.Pq Vt ePAPR . +.Sh HISTORY +The +.Nm +support first appeared in +.Fx 9.0 . +.Sh AUTHORS +The +.Nm +support was developed by Semihalf under sponsorship from the FreeBSD +Foundation. This manual page was written by +.An Rafal Jaworowski . |