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Wed Mar 4 10:48:58 2009 UTC (15 years, 2 months ago) by niro
File size: 2423 byte(s)
Wed Mar 4 10:48:58 2009 UTC (15 years, 2 months ago) by niro
File size: 2423 byte(s)
import linux sources based on 2.6.12-alx-r9: -using linux-2.6.12.6 -using 2.6.12-ck6 patch set -using fbsplash-0.9.2-r3 -using vesafb-tng-0.9-rc7 -using squashfs-2.2 -added cddvd-cmdfilter-drop.patch as ck dropped it -added via-epia-dri (cle266) patch -added zd1211-svn-32 wlan driver (http://zd1211.ath.cx/download/) -added debian patches to zd1211 for wep256 etc
| 1 | niro | 628 | |
| 2 | ------------------------------------------------------------------------- | ||
| 3 | Release Notes for Linux on Intel's IXP2000 Network Processor | ||
| 4 | |||
| 5 | Maintained by Deepak Saxena <dsaxena@plexity.net> | ||
| 6 | ------------------------------------------------------------------------- | ||
| 7 | |||
| 8 | 1. Overview | ||
| 9 | |||
| 10 | Intel's IXP2000 family of NPUs (IXP2400, IXP2800, IXP2850) is designed | ||
| 11 | for high-performance network applications such high-availability | ||
| 12 | telecom systems. In addition to an XScale core, it contains up to 8 | ||
| 13 | "MicroEngines" that run special code, several high-end networking | ||
| 14 | interfaces (UTOPIA, SPI, etc), a PCI host bridge, one serial port, | ||
| 15 | flash interface, and some other odds and ends. For more information, see: | ||
| 16 | |||
| 17 | http://developer.intel.com/design/network/products/npfamily/ixp2xxx.htm | ||
| 18 | |||
| 19 | 2. Linux Support | ||
| 20 | |||
| 21 | Linux currently supports the following features on the IXP2000 NPUs: | ||
| 22 | |||
| 23 | - On-chip serial | ||
| 24 | - PCI | ||
| 25 | - Flash (MTD/JFFS2) | ||
| 26 | - I2C through GPIO | ||
| 27 | - Timers (watchdog, OS) | ||
| 28 | |||
| 29 | That is about all we can support under Linux ATM b/c the core networking | ||
| 30 | components of the chip are accessed via Intel's closed source SDK. | ||
| 31 | Please contact Intel directly on issues with using those. There is | ||
| 32 | also a mailing list run by some folks at Princeton University that might | ||
| 33 | be of help: https://lists.cs.princeton.edu/mailman/listinfo/ixp2xxx | ||
| 34 | |||
| 35 | WHATEVER YOU DO, DO NOT POST EMAIL TO THE LINUX-ARM OR LINUX-ARM-KERNEL | ||
| 36 | MAILING LISTS REGARDING THE INTEL SDK. | ||
| 37 | |||
| 38 | 3. Supported Platforms | ||
| 39 | |||
| 40 | - Intel IXDP2400 Reference Platform | ||
| 41 | - Intel IXDP2800 Reference Platform | ||
| 42 | - Intel IXDP2401 Reference Platform | ||
| 43 | - Intel IXDP2801 Reference Platform | ||
| 44 | - RadiSys ENP-2611 | ||
| 45 | |||
| 46 | 4. Usage Notes | ||
| 47 | |||
| 48 | - The IXP2000 platforms usually have rather complex PCI bus topologies | ||
| 49 | with large memory space requirements. In addition, b/c of the way the | ||
| 50 | Intel SDK is designed, devices are enumerated in a very specific | ||
| 51 | way. B/c of this this, we use "pci=firmware" option in the kernel | ||
| 52 | command line so that we do not re-enumerate the bus. | ||
| 53 | |||
| 54 | - IXDP2x01 systems have variable clock tick rates that we cannot determine | ||
| 55 | via HW registers. The "ixdp2x01_clk=XXX" cmd line options allow you | ||
| 56 | to pass the clock rate to the board port. | ||
| 57 | |||
| 58 | 5. Thanks | ||
| 59 | |||
| 60 | The IXP2000 work has been funded by Intel Corp. and MontaVista Software, Inc. | ||
| 61 | |||
| 62 | The following people have contributed patches/comments/etc: | ||
| 63 | |||
| 64 | Naeem F. Afzal | ||
| 65 | Lennert Buytenhek | ||
| 66 | Jeffrey Daly | ||
| 67 | |||
| 68 | ------------------------------------------------------------------------- | ||
| 69 | Last Update: 8/09/2004 |