0ea6e61122
Below you will find an updated version from the original series bunching all patches into one big patch updating broken web addresses that are located in Documentation/* Some of the addresses date as far far back as 1995 etc... so searching became a bit difficult, the best way to deal with these is to use web.archive.org to locate these addresses that are outdated. Now there are also some addresses pointing to .spec files some are located, but some(after searching on the companies site)where still no where to be found. In this case I just changed the address to the company site this way the users can contact the company and they can locate them for the users. Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Thomas Weber <weber@corscience.de> Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Cc: Paulo Marques <pmarques@grupopie.com> Cc: Randy Dunlap <rdunlap@xenotime.net> Cc: Michael Neuling <mikey@neuling.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
69 lines
2.3 KiB
Text
69 lines
2.3 KiB
Text
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Release Notes for Linux on Intel's IXP2000 Network Processor
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Maintained by Deepak Saxena <dsaxena@plexity.net>
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1. Overview
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Intel's IXP2000 family of NPUs (IXP2400, IXP2800, IXP2850) is designed
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for high-performance network applications such high-availability
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telecom systems. In addition to an XScale core, it contains up to 8
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"MicroEngines" that run special code, several high-end networking
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interfaces (UTOPIA, SPI, etc), a PCI host bridge, one serial port,
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flash interface, and some other odds and ends. For more information, see:
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http://developer.intel.com
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2. Linux Support
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Linux currently supports the following features on the IXP2000 NPUs:
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- On-chip serial
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- PCI
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- Flash (MTD/JFFS2)
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- I2C through GPIO
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- Timers (watchdog, OS)
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That is about all we can support under Linux ATM b/c the core networking
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components of the chip are accessed via Intel's closed source SDK.
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Please contact Intel directly on issues with using those. There is
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also a mailing list run by some folks at Princeton University that might
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be of help: https://lists.cs.princeton.edu/mailman/listinfo/ixp2xxx
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WHATEVER YOU DO, DO NOT POST EMAIL TO THE LINUX-ARM OR LINUX-ARM-KERNEL
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MAILING LISTS REGARDING THE INTEL SDK.
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3. Supported Platforms
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- Intel IXDP2400 Reference Platform
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- Intel IXDP2800 Reference Platform
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- Intel IXDP2401 Reference Platform
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- Intel IXDP2801 Reference Platform
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- RadiSys ENP-2611
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4. Usage Notes
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- The IXP2000 platforms usually have rather complex PCI bus topologies
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with large memory space requirements. In addition, b/c of the way the
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Intel SDK is designed, devices are enumerated in a very specific
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way. B/c of this this, we use "pci=firmware" option in the kernel
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command line so that we do not re-enumerate the bus.
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- IXDP2x01 systems have variable clock tick rates that we cannot determine
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via HW registers. The "ixdp2x01_clk=XXX" cmd line options allow you
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to pass the clock rate to the board port.
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5. Thanks
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The IXP2000 work has been funded by Intel Corp. and MontaVista Software, Inc.
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The following people have contributed patches/comments/etc:
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Naeem F. Afzal
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Lennert Buytenhek
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Jeffrey Daly
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-------------------------------------------------------------------------
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Last Update: 8/09/2004
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