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authorMatt Porter <mporter@kernel.crashing.org>2005-11-07 01:00:15 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2005-11-07 07:53:46 -0800
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[PATCH] RapidIO support: core base
Adds a RapidIO subsystem to the kernel. RIO is a switched fabric interconnect used in higher-end embedded applications. The curious can look at the specs over at http://www.rapidio.org The core code implements enumeration/discovery, management of devices/resources, and interfaces for RIO drivers. There's a lot more to do to take advantages of all the hardware features. However, this should provide a good base for folks with RIO hardware to start contributing. Signed-off-by: Matt Porter <mporter@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE book PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
+ "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd" [
+ <!ENTITY rapidio SYSTEM "rapidio.xml">
+ ]>
+
+<book id="RapidIO-Guide">
+ <bookinfo>
+ <title>RapidIO Subsystem Guide</title>
+
+ <authorgroup>
+ <author>
+ <firstname>Matt</firstname>
+ <surname>Porter</surname>
+ <affiliation>
+ <address>
+ <email>mporter@kernel.crashing.org</email>
+ <email>mporter@mvista.com</email>
+ </address>
+ </affiliation>
+ </author>
+ </authorgroup>
+
+ <copyright>
+ <year>2005</year>
+ <holder>MontaVista Software, Inc.</holder>
+ </copyright>
+
+ <legalnotice>
+ <para>
+ This documentation is free software; you can redistribute
+ it and/or modify it under the terms of the GNU General Public
+ License version 2 as published by the Free Software Foundation.
+ </para>
+
+ <para>
+ This program is distributed in the hope that it will be
+ useful, but WITHOUT ANY WARRANTY; without even the implied
+ warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ See the GNU General Public License for more details.
+ </para>
+
+ <para>
+ You should have received a copy of the GNU General Public
+ License along with this program; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ MA 02111-1307 USA
+ </para>
+
+ <para>
+ For more details see the file COPYING in the source
+ distribution of Linux.
+ </para>
+ </legalnotice>
+ </bookinfo>
+
+<toc></toc>
+
+ <chapter id="intro">
+ <title>Introduction</title>
+ <para>
+ RapidIO is a high speed switched fabric interconnect with
+ features aimed at the embedded market. RapidIO provides
+ support for memory-mapped I/O as well as message-based
+ transactions over the switched fabric network. RapidIO has
+ a standardized discovery mechanism not unlike the PCI bus
+ standard that allows simple detection of devices in a
+ network.
+ </para>
+ <para>
+ This documentation is provided for developers intending
+ to support RapidIO on new architectures, write new drivers,
+ or to understand the subsystem internals.
+ </para>
+ </chapter>
+
+ <chapter id="bugs">
+ <title>Known Bugs and Limitations</title>
+
+ <sect1>
+ <title>Bugs</title>
+ <para>None. ;)</para>
+ </sect1>
+ <sect1>
+ <title>Limitations</title>
+ <para>
+ <orderedlist>
+ <listitem><para>Access/management of RapidIO memory regions is not supported</para></listitem>
+ <listitem><para>Multiple host enumeration is not supported</para></listitem>
+ </orderedlist>
+ </para>
+ </sect1>
+ </chapter>
+
+ <chapter id="drivers">
+ <title>RapidIO driver interface</title>
+ <para>
+ Drivers are provided a set of calls in order
+ to interface with the subsystem to gather info
+ on devices, request/map memory region resources,
+ and manage mailboxes/doorbells.
+ </para>
+ <sect1>
+ <title>Functions</title>
+!Iinclude/linux/rio_drv.h
+!Edrivers/rapidio/rio-driver.c
+!Edrivers/rapidio/rio.c
+ </sect1>
+ </chapter>
+
+ <chapter id="internals">
+ <title>Internals</title>
+
+ <para>
+ This chapter contains the autogenerated documentation of the RapidIO
+ subsystem.
+ </para>
+
+ <sect1><title>Structures</title>
+!Iinclude/linux/rio.h
+ </sect1>
+ <sect1><title>Enumeration and Discovery</title>
+!Idrivers/rapidio/rio-scan.c
+ </sect1>
+ <sect1><title>Driver functionality</title>
+!Idrivers/rapidio/rio.c
+!Idrivers/rapidio/rio-access.c
+ </sect1>
+ <sect1><title>Device model support</title>
+!Idrivers/rapidio/rio-driver.c
+ </sect1>
+ <sect1><title>Sysfs support</title>
+!Idrivers/rapidio/rio-sysfs.c
+ </sect1>
+ <sect1><title>PPC32 support</title>
+!Iarch/ppc/kernel/rio.c
+!Earch/ppc/syslib/ppc85xx_rio.c
+!Iarch/ppc/syslib/ppc85xx_rio.c
+ </sect1>
+ </chapter>
+
+ <chapter id="credits">
+ <title>Credits</title>
+ <para>
+ The following people have contributed to the RapidIO
+ subsystem directly or indirectly:
+ <orderedlist>
+ <listitem><para>Matt Porter<email>mporter@kernel.crashing.org</email></para></listitem>
+ <listitem><para>Randy Vinson<email>rvinson@mvista.com</email></para></listitem>
+ <listitem><para>Dan Malek<email>dan@embeddedalley.com</email></para></listitem>
+ </orderedlist>
+ </para>
+ <para>
+ The following people have contributed to this document:
+ <orderedlist>
+ <listitem><para>Matt Porter<email>mporter@kernel.crashing.org</email></para></listitem>
+ </orderedlist>
+ </para>
+ </chapter>
+</book>
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