]> RapidIO Subsystem Guide Matt Porter
mporter@kernel.crashing.org mporter@mvista.com
2005 MontaVista Software, Inc. 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. 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. 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 For more details see the file COPYING in the source distribution of Linux.
Introduction 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. This documentation is provided for developers intending to support RapidIO on new architectures, write new drivers, or to understand the subsystem internals. Known Bugs and Limitations Bugs None. ;) Limitations Access/management of RapidIO memory regions is not supported Multiple host enumeration is not supported RapidIO driver interface 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. Functions !Iinclude/linux/rio_drv.h !Edrivers/rapidio/rio-driver.c !Edrivers/rapidio/rio.c Internals This chapter contains the autogenerated documentation of the RapidIO subsystem. Structures !Iinclude/linux/rio.h Enumeration and Discovery !Idrivers/rapidio/rio-scan.c Driver functionality !Idrivers/rapidio/rio.c !Idrivers/rapidio/rio-access.c Device model support !Idrivers/rapidio/rio-driver.c Sysfs support !Idrivers/rapidio/rio-sysfs.c PPC32 support !Iarch/powerpc/sysdev/fsl_rio.c Credits The following people have contributed to the RapidIO subsystem directly or indirectly: Matt Portermporter@kernel.crashing.org Randy Vinsonrvinson@mvista.com Dan Malekdan@embeddedalley.com The following people have contributed to this document: Matt Portermporter@kernel.crashing.org