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1
2NOTE
3----
4
5This document was contributed by Cirrus Logic for kernel 2.2.5. This version
6has been updated for 2.3.48 by Andrew Morton <andrewm@uow.edu.au>
7
8Cirrus make a copy of this driver available at their website, as
9described below. In general, you should use the driver version which
10comes with your Linux distribution.
11
12
13
14CIRRUS LOGIC LAN CS8900/CS8920 ETHERNET ADAPTERS
15Linux Network Interface Driver ver. 2.00 <kernel 2.3.48>
16===============================================================================
17
18
19TABLE OF CONTENTS
20
211.0 CIRRUS LOGIC LAN CS8900/CS8920 ETHERNET ADAPTERS
22 1.1 Product Overview
23 1.2 Driver Description
24 1.2.1 Driver Name
25 1.2.2 File in the Driver Package
26 1.3 System Requirements
27 1.4 Licensing Information
28
292.0 ADAPTER INSTALLATION and CONFIGURATION
30 2.1 CS8900-based Adapter Configuration
31 2.2 CS8920-based Adapter Configuration
32
333.0 LOADING THE DRIVER AS A MODULE
34
354.0 COMPILING THE DRIVER
36 4.1 Compiling the Driver as a Loadable Module
37 4.2 Compiling the driver to support memory mode
38 4.3 Compiling the driver to support Rx DMA
39 4.4 Compiling the Driver into the Kernel
40
415.0 TESTING AND TROUBLESHOOTING
42 5.1 Known Defects and Limitations
43 5.2 Testing the Adapter
44 5.2.1 Diagnostic Self-Test
45 5.2.2 Diagnostic Network Test
46 5.3 Using the Adapter's LEDs
47 5.4 Resolving I/O Conflicts
48
496.0 TECHNICAL SUPPORT
50 6.1 Contacting Cirrus Logic's Technical Support
51 6.2 Information Required Before Contacting Technical Support
52 6.3 Obtaining the Latest Driver Version
53 6.4 Current maintainer
54 6.5 Kernel boot parameters
55
56
571.0 CIRRUS LOGIC LAN CS8900/CS8920 ETHERNET ADAPTERS
58===============================================================================
59
60
611.1 PRODUCT OVERVIEW
62
63The CS8900-based ISA Ethernet Adapters from Cirrus Logic follow
64IEEE 802.3 standards and support half or full-duplex operation in ISA bus
65computers on 10 Mbps Ethernet networks. The adapters are designed for operation
66in 16-bit ISA or EISA bus expansion slots and are available in
6710BaseT-only or 3-media configurations (10BaseT, 10Base2, and AUI for 10Base-5
68or fiber networks).
69
70CS8920-based adapters are similar to the CS8900-based adapter with additional
71features for Plug and Play (PnP) support and Wakeup Frame recognition. As
72such, the configuration procedures differ somewhat between the two types of
73adapters. Refer to the "Adapter Configuration" section for details on
74configuring both types of adapters.
75
76
771.2 DRIVER DESCRIPTION
78
79The CS8900/CS8920 Ethernet Adapter driver for Linux supports the Linux
80v2.3.48 or greater kernel. It can be compiled directly into the kernel
81or loaded at run-time as a device driver module.
82
831.2.1 Driver Name: cs89x0
84
851.2.2 Files in the Driver Archive:
86
87The files in the driver at Cirrus' website include:
88
89 readme.txt - this file
90 build - batch file to compile cs89x0.c.
91 cs89x0.c - driver C code
92 cs89x0.h - driver header file
93 cs89x0.o - pre-compiled module (for v2.2.5 kernel)
94 config/Config.in - sample file to include cs89x0 driver in the kernel.
95 config/Makefile - sample file to include cs89x0 driver in the kernel.
96 config/Space.c - sample file to include cs89x0 driver in the kernel.
97
98
99
1001.3 SYSTEM REQUIREMENTS
101
102The following hardware is required:
103
104 * Cirrus Logic LAN (CS8900/20-based) Ethernet ISA Adapter
105
106 * IBM or IBM-compatible PC with:
107 * An 80386 or higher processor
108 * 16 bytes of contiguous IO space available between 210h - 370h
109 * One available IRQ (5,10,11,or 12 for the CS8900, 3-7,9-15 for CS8920).
110
111 * Appropriate cable (and connector for AUI, 10BASE-2) for your network
112 topology.
113
114The following software is required:
115
116* LINUX kernel version 2.3.48 or higher
117
118 * CS8900/20 Setup Utility (DOS-based)
119
120 * LINUX kernel sources for your kernel (if compiling into kernel)
121
122 * GNU Toolkit (gcc and make) v2.6 or above (if compiling into kernel
123 or a module)
124
125
126
1271.4 LICENSING INFORMATION
128
129This program is free software; you can redistribute it and/or modify it under
130the terms of the GNU General Public License as published by the Free Software
131Foundation, version 1.
132
133This program is distributed in the hope that it will be useful, but WITHOUT
134ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
135FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
136more details.
137
138For a full copy of the GNU General Public License, write to the Free Software
139Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
140
141
142
1432.0 ADAPTER INSTALLATION and CONFIGURATION
144===============================================================================
145
146Both the CS8900 and CS8920-based adapters can be configured using parameters
147stored in an on-board EEPROM. You must use the DOS-based CS8900/20 Setup
148Utility if you want to change the adapter's configuration in EEPROM.
149
150When loading the driver as a module, you can specify many of the adapter's
151configuration parameters on the command-line to override the EEPROM's settings
152or for interface configuration when an EEPROM is not used. (CS8920-based
153adapters must use an EEPROM.) See Section 3.0 LOADING THE DRIVER AS A MODULE.
154
155Since the CS8900/20 Setup Utility is a DOS-based application, you must install
156and configure the adapter in a DOS-based system using the CS8900/20 Setup
157Utility before installation in the target LINUX system. (Not required if
158installing a CS8900-based adapter and the default configuration is acceptable.)
159
160
1612.1 CS8900-BASED ADAPTER CONFIGURATION
162
163CS8900-based adapters shipped from Cirrus Logic have been configured
164with the following "default" settings:
165
166 Operation Mode: Memory Mode
167 IRQ: 10
168 Base I/O Address: 300
169 Memory Base Address: D0000
170 Optimization: DOS Client
171 Transmission Mode: Half-duplex
172 BootProm: None
173 Media Type: Autodetect (3-media cards) or
174 10BASE-T (10BASE-T only adapter)
175
176You should only change the default configuration settings if conflicts with
177another adapter exists. To change the adapter's configuration, run the
178CS8900/20 Setup Utility.
179
180
1812.2 CS8920-BASED ADAPTER CONFIGURATION
182
183CS8920-based adapters are shipped from Cirrus Logic configured as Plug
184and Play (PnP) enabled. However, since the cs89x0 driver does NOT
185support PnP, you must install the CS8920 adapter in a DOS-based PC and
186run the CS8900/20 Setup Utility to disable PnP and configure the
187adapter before installation in the target Linux system. Failure to do
188this will leave the adapter inactive and the driver will be unable to
189communicate with the adapter.
190
191
192 ****************************************************************
193 * CS8920-BASED ADAPTERS: *
194 * *
195 * CS8920-BASED ADAPTERS ARE PLUG and PLAY ENABLED BY DEFAULT. *
196 * THE CS89X0 DRIVER DOES NOT SUPPORT PnP. THEREFORE, YOU MUST *
197 * RUN THE CS8900/20 SETUP UTILITY TO DISABLE PnP SUPPORT AND *
198 * TO ACTIVATE THE ADAPTER. *
199 ****************************************************************
200
201
202
203
2043.0 LOADING THE DRIVER AS A MODULE
205===============================================================================
206
207If the driver is compiled as a loadable module, you can load the driver module
208with the 'modprobe' command. Many of the adapter's configuration parameters can
209be specified as command-line arguments to the load command. This facility
210provides a means to override the EEPROM's settings or for interface
211configuration when an EEPROM is not used.
212
213Example:
214
215 insmod cs89x0.o io=0x200 irq=0xA media=aui
216
217This example loads the module and configures the adapter to use an IO port base
218address of 200h, interrupt 10, and use the AUI media connection. The following
219configuration options are available on the command line:
220
221* io=### - specify IO address (200h-360h)
222* irq=## - specify interrupt level
223* use_dma=1 - Enable DMA
224* dma=# - specify dma channel (Driver is compiled to support
225 Rx DMA only)
226* dmasize=# (16 or 64) - DMA size 16K or 64K. Default value is set to 16.
227* media=rj45 - specify media type
228 or media=bnc
229 or media=aui
230 or medai=auto
231* duplex=full - specify forced half/full/autonegotiate duplex
232 or duplex=half
233 or duplex=auto
234* debug=# - debug level (only available if the driver was compiled
235 for debugging)
236
237NOTES:
238
239a) If an EEPROM is present, any specified command-line parameter
240 will override the corresponding configuration value stored in
241 EEPROM.
242
243b) The "io" parameter must be specified on the command-line.
244
245c) The driver's hardware probe routine is designed to avoid
246 writing to I/O space until it knows that there is a cs89x0
247 card at the written addresses. This could cause problems
248 with device probing. To avoid this behaviour, add one
249 to the `io=' module parameter. This doesn't actually change
250 the I/O address, but it is a flag to tell the driver
251 topartially initialise the hardware before trying to
252 identify the card. This could be dangerous if you are
253 not sure that there is a cs89x0 card at the provided address.
254
255 For example, to scan for an adapter located at IO base 0x300,
256 specify an IO address of 0x301.
257
258d) The "duplex=auto" parameter is only supported for the CS8920.
259
260e) The minimum command-line configuration required if an EEPROM is
261 not present is:
262
263 io
264 irq
265 media type (no autodetect)
266
267f) The following additional parameters are CS89XX defaults (values
268 used with no EEPROM or command-line argument).
269
270 * DMA Burst = enabled
271 * IOCHRDY Enabled = enabled
272 * UseSA = enabled
273 * CS8900 defaults to half-duplex if not specified on command-line
274 * CS8920 defaults to autoneg if not specified on command-line
275 * Use reset defaults for other config parameters
276 * dma_mode = 0
277
278g) You can use ifconfig to set the adapter's Ethernet address.
279
280h) Many Linux distributions use the 'modprobe' command to load
281 modules. This program uses the '/etc/conf.modules' file to
282 determine configuration information which is passed to a driver
283 module when it is loaded. All the configuration options which are
284 described above may be placed within /etc/conf.modules.
285
286 For example:
287
288 > cat /etc/conf.modules
289 ...
290 alias eth0 cs89x0
291 options cs89x0 io=0x0200 dma=5 use_dma=1
292 ...
293
294 In this example we are telling the module system that the
295 ethernet driver for this machine should use the cs89x0 driver. We
296 are asking 'modprobe' to pass the 'io', 'dma' and 'use_dma'
297 arguments to the driver when it is loaded.
298
299i) Cirrus recommend that the cs89x0 use the ISA DMA channels 5, 6 or
300 7. You will probably find that other DMA channels will not work.
301
302j) The cs89x0 supports DMA for receiving only. DMA mode is
303 significantly more efficient. Flooding a 400 MHz Celeron machine
304 with large ping packets consumes 82% of its CPU capacity in non-DMA
305 mode. With DMA this is reduced to 45%.
306
307k) If your Linux kernel was compiled with inbuilt plug-and-play
308 support you will be able to find information about the cs89x0 card
309 with the command
310
311 cat /proc/isapnp
312
313l) If during DMA operation you find erratic behavior or network data
314 corruption you should use your PC's BIOS to slow the EISA bus clock.
315
316m) If the cs89x0 driver is compiled directly into the kernel
317 (non-modular) then its I/O address is automatically determined by
318 ISA bus probing. The IRQ number, media options, etc are determined
319 from the card's EEPROM.
320
321n) If the cs89x0 driver is compiled directly into the kernel, DMA
322 mode may be selected by providing the kernel with a boot option
323 'cs89x0_dma=N' where 'N' is the desired DMA channel number (5, 6 or 7).
324
325 Kernel boot options may be provided on the LILO command line:
326
327 LILO boot: linux cs89x0_dma=5
328
329 or they may be placed in /etc/lilo.conf:
330
331 image=/boot/bzImage-2.3.48
332 append="cs89x0_dma=5"
333 label=linux
334 root=/dev/hda5
335 read-only
336
337 The DMA Rx buffer size is hardwired to 16 kbytes in this mode.
338 (64k mode is not available).
339
340
3414.0 COMPILING THE DRIVER
342===============================================================================
343
344The cs89x0 driver can be compiled directly into the kernel or compiled into
345a loadable device driver module.
346
347
3484.1 COMPILING THE DRIVER AS A LOADABLE MODULE
349
350To compile the driver into a loadable module, use the following command
351(single command line, without quotes):
352
353"gcc -D__KERNEL__ -I/usr/src/linux/include -I/usr/src/linux/net/inet -Wall
354-Wstrict-prototypes -O2 -fomit-frame-pointer -DMODULE -DCONFIG_MODVERSIONS
355-c cs89x0.c"
356
3574.2 COMPILING THE DRIVER TO SUPPORT MEMORY MODE
358
359Support for memory mode was not carried over into the 2.3 series kernels.
360
3614.3 COMPILING THE DRIVER TO SUPPORT Rx DMA
362
363The compile-time optionality for DMA was removed in the 2.3 kernel
364series. DMA support is now unconditionally part of the driver. It is
365enabled by the 'use_dma=1' module option.
366
3674.4 COMPILING THE DRIVER INTO THE KERNEL
368
369If your Linux distribution already has support for the cs89x0 driver
370then simply copy the source file to the /usr/src/linux/drivers/net
371directory to replace the original ones and run the make utility to
372rebuild the kernel. See Step 3 for rebuilding the kernel.
373
374If your Linux does not include the cs89x0 driver, you need to edit three
375configuration files, copy the source file to the /usr/src/linux/drivers/net
376directory, and then run the make utility to rebuild the kernel.
377
3781. Edit the following configuration files by adding the statements as
379indicated. (When possible, try to locate the added text to the section of the
380file containing similar statements).
381
382
383a.) In /usr/src/linux/drivers/net/Config.in, add:
384
385tristate 'CS89x0 support' CONFIG_CS89x0
386
387Example:
388
389 if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
390 tristate 'ICL EtherTeam 16i/32 support' CONFIG_ETH16I
391 fi
392
393 tristate 'CS89x0 support' CONFIG_CS89x0
394
395 tristate 'NE2000/NE1000 support' CONFIG_NE2000
396 if [ "$CONFIG_EXPERIMENTAL" = "y" ]; then
397 tristate 'NI5210 support' CONFIG_NI52
398
399
400b.) In /usr/src/linux/drivers/net/Makefile, add the following lines:
401
402ifeq ($(CONFIG_CS89x0),y)
403L_OBJS += cs89x0.o
404else
405 ifeq ($(CONFIG_CS89x0),m)
406 M_OBJS += cs89x0.o
407 endif
408endif
409
410
411c.) In /linux/drivers/net/Space.c file, add the line:
412
413extern int cs89x0_probe(struct device *dev);
414
415
416Example:
417
418 extern int ultra_probe(struct device *dev);
419 extern int wd_probe(struct device *dev);
420 extern int el2_probe(struct device *dev);
421
422 extern int cs89x0_probe(struct device *dev);
423
424 extern int ne_probe(struct device *dev);
425 extern int hp_probe(struct device *dev);
426 extern int hp_plus_probe(struct device *dev);
427
428
429Also add:
430
431 #ifdef CONFIG_CS89x0
432 { cs89x0_probe,0 },
433 #endif
434
435
4362.) Copy the driver source files (cs89x0.c and cs89x0.h)
437into the /usr/src/linux/drivers/net directory.
438
439
4403.) Go to /usr/src/linux directory and run 'make config' followed by 'make'
441(or make bzImage) to rebuild the kernel.
442
4434.) Use the DOS 'setup' utility to disable plug and play on the NIC.
444
445
4465.0 TESTING AND TROUBLESHOOTING
447===============================================================================
448
4495.1 KNOWN DEFECTS and LIMITATIONS
450
451Refer to the RELEASE.TXT file distributed as part of this archive for a list of
452known defects, driver limitations, and work arounds.
453
454
4555.2 TESTING THE ADAPTER
456
457Once the adapter has been installed and configured, the diagnostic option of
458the CS8900/20 Setup Utility can be used to test the functionality of the
459adapter and its network connection. Use the diagnostics 'Self Test' option to
460test the functionality of the adapter with the hardware configuration you have
461assigned. You can use the diagnostics 'Network Test' to test the ability of the
462adapter to communicate across the Ethernet with another PC equipped with a
463CS8900/20-based adapter card (it must also be running the CS8900/20 Setup
464Utility).
465
466 NOTE: The Setup Utility's diagnostics are designed to run in a
467 DOS-only operating system environment. DO NOT run the diagnostics
468 from a DOS or command prompt session under Windows 95, Windows NT,
469 OS/2, or other operating system.
470
471To run the diagnostics tests on the CS8900/20 adapter:
472
473 1.) Boot DOS on the PC and start the CS8900/20 Setup Utility.
474
475 2.) The adapter's current configuration is displayed. Hit the ENTER key to
476 get to the main menu.
477
478 4.) Select 'Diagnostics' (ALT-G) from the main menu.
479 * Select 'Self-Test' to test the adapter's basic functionality.
480 * Select 'Network Test' to test the network connection and cabling.
481
482
4835.2.1 DIAGNOSTIC SELF-TEST
484
485The diagnostic self-test checks the adapter's basic functionality as well as
486its ability to communicate across the ISA bus based on the system resources
487assigned during hardware configuration. The following tests are performed:
488
489 * IO Register Read/Write Test
490 The IO Register Read/Write test insures that the CS8900/20 can be
491 accessed in IO mode, and that the IO base address is correct.
492
493 * Shared Memory Test
494 The Shared Memory test insures the CS8900/20 can be accessed in memory
495 mode and that the range of memory addresses assigned does not conflict
496 with other devices in the system.
497
498 * Interrupt Test
499 The Interrupt test insures there are no conflicts with the assigned IRQ
500 signal.
501
502 * EEPROM Test
503 The EEPROM test insures the EEPROM can be read.
504
505 * Chip RAM Test
506 The Chip RAM test insures the 4K of memory internal to the CS8900/20 is
507 working properly.
508
509 * Internal Loop-back Test
510 The Internal Loop Back test insures the adapter's transmitter and
511 receiver are operating properly. If this test fails, make sure the
512 adapter's cable is connected to the network (check for LED activity for
513 example).
514
515 * Boot PROM Test
516 The Boot PROM test insures the Boot PROM is present, and can be read.
517 Failure indicates the Boot PROM was not successfully read due to a
518 hardware problem or due to a conflicts on the Boot PROM address
519 assignment. (Test only applies if the adapter is configured to use the
520 Boot PROM option.)
521
522Failure of a test item indicates a possible system resource conflict with
523another device on the ISA bus. In this case, you should use the Manual Setup
524option to reconfigure the adapter by selecting a different value for the system
525resource that failed.
526
527
5285.2.2 DIAGNOSTIC NETWORK TEST
529
530The Diagnostic Network Test verifies a working network connection by
531transferring data between two CS8900/20 adapters installed in different PCs
532on the same network. (Note: the diagnostic network test should not be run
533between two nodes across a router.)
534
535This test requires that each of the two PCs have a CS8900/20-based adapter
536installed and have the CS8900/20 Setup Utility running. The first PC is
537configured as a Responder and the other PC is configured as an Initiator.
538Once the Initiator is started, it sends data frames to the Responder which
539returns the frames to the Initiator.
540
541The total number of frames received and transmitted are displayed on the
542Initiator's display, along with a count of the number of frames received and
543transmitted OK or in error. The test can be terminated anytime by the user at
544either PC.
545
546To setup the Diagnostic Network Test:
547
548 1.) Select a PC with a CS8900/20-based adapter and a known working network
549 connection to act as the Responder. Run the CS8900/20 Setup Utility
550 and select 'Diagnostics -> Network Test -> Responder' from the main
551 menu. Hit ENTER to start the Responder.
552
553 2.) Return to the PC with the CS8900/20-based adapter you want to test and
554 start the CS8900/20 Setup Utility.
555
556 3.) From the main menu, Select 'Diagnostic -> Network Test -> Initiator'.
557 Hit ENTER to start the test.
558
559You may stop the test on the Initiator at any time while allowing the Responder
560to continue running. In this manner, you can move to additional PCs and test
561them by starting the Initiator on another PC without having to stop/start the
562Responder.
563
564
565
5665.3 USING THE ADAPTER'S LEDs
567
568The 2 and 3-media adapters have two LEDs visible on the back end of the board
569located near the 10Base-T connector.
570
571Link Integrity LED: A "steady" ON of the green LED indicates a valid 10Base-T
572connection. (Only applies to 10Base-T. The green LED has no significance for
573a 10Base-2 or AUI connection.)
574
575TX/RX LED: The yellow LED lights briefly each time the adapter transmits or
576receives data. (The yellow LED will appear to "flicker" on a typical network.)
577
578
5795.4 RESOLVING I/O CONFLICTS
580
581An IO conflict occurs when two or more adapter use the same ISA resource (IO
582address, memory address or IRQ). You can usually detect an IO conflict in one
583of four ways after installing and or configuring the CS8900/20-based adapter:
584
585 1.) The system does not boot properly (or at all).
586
587 2.) The driver can not communicate with the adapter, reporting an "Adapter
588 not found" error message.
589
590 3.) You cannot connect to the network or the driver will not load.
591
592 4.) If you have configured the adapter to run in memory mode but the driver
593 reports it is using IO mode when loading, this is an indication of a
594 memory address conflict.
595
596If an IO conflict occurs, run the CS8900/20 Setup Utility and perform a
597diagnostic self-test. Normally, the ISA resource in conflict will fail the
598self-test. If so, reconfigure the adapter selecting another choice for the
599resource in conflict. Run the diagnostics again to check for further IO
600conflicts.
601
602In some cases, such as when the PC will not boot, it may be necessary to remove
603the adapter and reconfigure it by installing it in another PC to run the
604CS8900/20 Setup Utility. Once reinstalled in the target system, run the
605diagnostics self-test to ensure the new configuration is free of conflicts
606before loading the driver again.
607
608When manually configuring the adapter, keep in mind the typical ISA system
609resource usage as indicated in the tables below.
610
611I/O Address Device IRQ Device
612----------- -------- --- --------
613 200-20F Game I/O adapter 3 COM2, Bus Mouse
614 230-23F Bus Mouse 4 COM1
615 270-27F LPT3: third parallel port 5 LPT2
616 2F0-2FF COM2: second serial port 6 Floppy Disk controller
617 320-32F Fixed disk controller 7 LPT1
618 8 Real-time Clock
619 9 EGA/VGA display adapter
620 12 Mouse (PS/2)
621Memory Address Device 13 Math Coprocessor
622-------------- --------------------- 14 Hard Disk controller
623A000-BFFF EGA Graphics Adpater
624A000-C7FF VGA Graphics Adpater
625B000-BFFF Mono Graphics Adapter
626B800-BFFF Color Graphics Adapter
627E000-FFFF AT BIOS
628
629
630
631
6326.0 TECHNICAL SUPPORT
633===============================================================================
634
6356.1 CONTACTING CIRRUS LOGIC'S TECHNICAL SUPPORT
636
637Cirrus Logic's CS89XX Technical Application Support can be reached at:
638
639Telephone :(800) 888-5016 (from inside U.S. and Canada)
640 :(512) 442-7555 (from outside the U.S. and Canada)
641Fax :(512) 912-3871
642Email :ethernet@crystal.cirrus.com
643WWW :http://www.cirrus.com
644
645
6466.2 INFORMATION REQUIRED BEFORE CONTACTING TECHNICAL SUPPORT
647
648Before contacting Cirrus Logic for technical support, be prepared to provide as
649Much of the following information as possible.
650
6511.) Adapter type (CRD8900, CDB8900, CDB8920, etc.)
652
6532.) Adapter configuration
654
655 * IO Base, Memory Base, IO or memory mode enabled, IRQ, DMA channel
656 * Plug and Play enabled/disabled (CS8920-based adapters only)
657 * Configured for media auto-detect or specific media type (which type).
658
6593.) PC System's Configuration
660
661 * Plug and Play system (yes/no)
662 * BIOS (make and version)
663 * System make and model
664 * CPU (type and speed)
665 * System RAM
666 * SCSI Adapter
667
6684.) Software
669
670 * CS89XX driver and version
671 * Your network operating system and version
672 * Your system's OS version
673 * Version of all protocol support files
674
6755.) Any Error Message displayed.
676
677
678
6796.3 OBTAINING THE LATEST DRIVER VERSION
680
681You can obtain the latest CS89XX drivers and support software from Cirrus Logic's
682Web site. You can also contact Cirrus Logic's Technical Support (email:
683ethernet@crystal.cirrus.com) and request that you be registered for automatic
684software-update notification.
685
686Cirrus Logic maintains a web page at http://www.cirrus.com with the
687the latest drivers and technical publications.
688
689
6906.4 Current maintainer
691
692In February 2000 the maintenance of this driver was assumed by Andrew
693Morton <akpm@zip.com.au>
694
6956.5 Kernel module parameters
696
697For use in embedded environments with no cs89x0 EEPROM, the kernel boot
698parameter `cs89x0_media=' has been implemented. Usage is:
699
700 cs89x0_media=rj45 or
701 cs89x0_media=aui or
702 cs89x0_media=bnc
703