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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#
2# IDE ATA ATAPI Block device driver configuration
3#
4# Andre Hedrick <andre@linux-ide.org>
5#
6
Jan Engelhardte0ff9cd2007-05-16 00:51:46 +02007menuconfig IDE
Linus Torvalds1da177e2005-04-16 15:20:36 -07008 tristate "ATA/ATAPI/MFM/RLL support"
Jan Engelhardte0ff9cd2007-05-16 00:51:46 +02009 depends on BLOCK
10 depends on HAS_IOMEM
Linus Torvalds1da177e2005-04-16 15:20:36 -070011 ---help---
12 If you say Y here, your kernel will be able to manage low cost mass
13 storage units such as ATA/(E)IDE and ATAPI units. The most common
14 cases are IDE hard drives and ATAPI CD-ROM drives.
15
16 If your system is pure SCSI and doesn't use these interfaces, you
17 can say N here.
18
19 Integrated Disk Electronics (IDE aka ATA-1) is a connecting standard
20 for mass storage units such as hard disks. It was designed by
21 Western Digital and Compaq Computer in 1984. It was then named
22 ST506. Quite a number of disks use the IDE interface.
23
24 AT Attachment (ATA) is the superset of the IDE specifications.
25 ST506 was also called ATA-1.
26
27 Fast-IDE is ATA-2 (also named Fast ATA), Enhanced IDE (EIDE) is
28 ATA-3. It provides support for larger disks (up to 8.4GB by means of
29 the LBA standard), more disks (4 instead of 2) and for other mass
30 storage units such as tapes and cdrom. UDMA/33 (aka UltraDMA/33) is
31 ATA-4 and provides faster (and more CPU friendly) transfer modes
32 than previous PIO (Programmed processor Input/Output) from previous
33 ATA/IDE standards by means of fast DMA controllers.
34
35 ATA Packet Interface (ATAPI) is a protocol used by EIDE tape and
36 CD-ROM drives, similar in many respects to the SCSI protocol.
37
38 SMART IDE (Self Monitoring, Analysis and Reporting Technology) was
39 designed in order to prevent data corruption and disk crash by
40 detecting pre hardware failure conditions (heat, access time, and
41 the like...). Disks built since June 1995 may follow this standard.
42 The kernel itself doesn't manage this; however there are quite a
43 number of user programs such as smart that can query the status of
44 SMART parameters from disk drives.
45
46 To compile this driver as a module, choose M here: the
47 module will be called ide.
48
49 For further information, please read <file:Documentation/ide.txt>.
50
51 If unsure, say Y.
52
53if IDE
54
Bjorn Helgaasd57d39c2006-02-03 03:04:53 -080055config IDE_MAX_HWIFS
Linus Torvalds1da177e2005-04-16 15:20:36 -070056 int "Max IDE interfaces"
Matt Mackall83d7dbc2006-10-03 01:14:16 -070057 depends on ALPHA || SUPERH || IA64 || EMBEDDED
Bartlomiej Zolnierkiewicz8929fea2007-04-20 22:16:58 +020058 range 1 10
Linus Torvalds1da177e2005-04-16 15:20:36 -070059 default 4
60 help
61 This is the maximum number of IDE hardware interfaces that will
62 be supported by the driver. Make sure it is at least as high as
63 the number of IDE interfaces in your system.
64
65config BLK_DEV_IDE
66 tristate "Enhanced IDE/MFM/RLL disk/cdrom/tape/floppy support"
67 ---help---
68 If you say Y here, you will use the full-featured IDE driver to
69 control up to ten ATA/IDE interfaces, each being able to serve a
70 "master" and a "slave" device, for a total of up to twenty ATA/IDE
71 disk/cdrom/tape/floppy drives.
72
73 Useful information about large (>540 MB) IDE disks, multiple
74 interfaces, what to do if ATA/IDE devices are not automatically
75 detected, sound card ATA/IDE ports, module support, and other
76 topics, is contained in <file:Documentation/ide.txt>. For detailed
77 information about hard drives, consult the Disk-HOWTO and the
78 Multi-Disk-HOWTO, available from
79 <http://www.tldp.org/docs.html#howto>.
80
81 To fine-tune ATA/IDE drive/interface parameters for improved
82 performance, look for the hdparm package at
83 <ftp://ibiblio.org/pub/Linux/system/hardware/>.
84
85 To compile this driver as a module, choose M here and read
86 <file:Documentation/ide.txt>. The module will be called ide-mod.
87 Do not compile this driver as a module if your root file system (the
88 one containing the directory /) is located on an IDE device.
89
90 If you have one or more IDE drives, say Y or M here. If your system
91 has no IDE drives, or if memory requirements are really tight, you
92 could say N here, and select the "Old hard disk driver" below
93 instead to save about 13 KB of memory in the kernel.
94
95if BLK_DEV_IDE
96
97comment "Please see Documentation/ide.txt for help/info on IDE drives"
98
99config BLK_DEV_IDE_SATA
100 bool "Support for SATA (deprecated; conflicts with libata SATA driver)"
101 default n
102 ---help---
103 There are two drivers for Serial ATA controllers.
104
Patrick Ringlb43c5f32007-03-26 23:03:19 +0200105 The main driver, "libata", uses the SCSI subsystem
106 and supports most modern SATA controllers. In order to use it
107 you may take a look at "Serial ATA (prod) and Parallel ATA
108 (experimental) drivers".
Linus Torvalds1da177e2005-04-16 15:20:36 -0700109
110 The IDE driver (which you are currently configuring) supports
111 a few first-generation SATA controllers.
112
113 In order to eliminate conflicts between the two subsystems,
114 this config option enables the IDE driver's SATA support.
115 Normally this is disabled, as it is preferred that libata
116 supports SATA controllers, and this (IDE) driver supports
117 PATA controllers.
118
119 If unsure, say N.
120
121config BLK_DEV_HD_IDE
122 bool "Use old disk-only driver on primary interface"
123 depends on (X86 || SH_MPC1211)
124 ---help---
125 There are two drivers for MFM/RLL/IDE disks. Most people use just
126 the new enhanced driver by itself. This option however installs the
127 old hard disk driver to control the primary IDE/disk interface in
128 the system, leaving the new enhanced IDE driver to take care of only
129 the 2nd/3rd/4th IDE interfaces. Doing this will prevent you from
130 having an IDE/ATAPI CD-ROM or tape drive connected to the primary
131 IDE interface. Choosing this option may be useful for older systems
132 which have MFM/RLL/ESDI controller+drives at the primary port
133 address (0x1f0), along with IDE drives at the secondary/3rd/4th port
134 addresses.
135
136 Normally, just say N here; you will then use the new driver for all
137 4 interfaces.
138
139config BLK_DEV_IDEDISK
140 tristate "Include IDE/ATA-2 DISK support"
141 ---help---
142 This will include enhanced support for MFM/RLL/IDE hard disks. If
143 you have a MFM/RLL/IDE disk, and there is no special reason to use
144 the old hard disk driver instead, say Y. If you have an SCSI-only
145 system, you can say N here.
146
147 To compile this driver as a module, choose M here: the
148 module will be called ide-disk.
149 Do not compile this driver as a module if your root file system
150 (the one containing the directory /) is located on the IDE disk.
151
152 If unsure, say Y.
153
154config IDEDISK_MULTI_MODE
155 bool "Use multi-mode by default"
156 help
157 If you get this error, try to say Y here:
158
159 hda: set_multmode: status=0x51 { DriveReady SeekComplete Error }
160 hda: set_multmode: error=0x04 { DriveStatusError }
161
162 If in doubt, say N.
163
164config BLK_DEV_IDECS
165 tristate "PCMCIA IDE support"
166 depends on PCMCIA
167 help
Andreas Mohr3b6ce242006-02-03 03:04:54 -0800168 Support for Compact Flash cards, outboard IDE disks, tape drives,
169 and CD-ROM drives connected through a PCMCIA card.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700170
Mark Lord78281c52007-02-07 18:19:32 +0100171config BLK_DEV_DELKIN
172 tristate "Cardbus IDE support (Delkin/ASKA/Workbit)"
173 depends on CARDBUS && PCI
174 help
175 Support for Delkin, ASKA, and Workbit Cardbus CompactFlash
176 Adapters. This may also work for similar SD and XD adapters.
177
Linus Torvalds1da177e2005-04-16 15:20:36 -0700178config BLK_DEV_IDECD
179 tristate "Include IDE/ATAPI CDROM support"
180 ---help---
181 If you have a CD-ROM drive using the ATAPI protocol, say Y. ATAPI is
182 a newer protocol used by IDE CD-ROM and TAPE drives, similar to the
183 SCSI protocol. Most new CD-ROM drives use ATAPI, including the
184 NEC-260, Mitsumi FX400, Sony 55E, and just about all non-SCSI
185 double(2X) or better speed drives.
186
187 If you say Y here, the CD-ROM drive will be identified at boot time
188 along with other IDE devices, as "hdb" or "hdc", or something
189 similar (check the boot messages with dmesg). If this is your only
190 CD-ROM drive, you can say N to all other CD-ROM options, but be sure
191 to say Y or M to "ISO 9660 CD-ROM file system support".
192
193 Note that older versions of LILO (LInux LOader) cannot properly deal
194 with IDE/ATAPI CD-ROMs, so install LILO 16 or higher, available from
195 <http://lilo.go.dyndns.org/>.
196
197 To compile this driver as a module, choose M here: the
198 module will be called ide-cd.
199
200config BLK_DEV_IDETAPE
201 tristate "Include IDE/ATAPI TAPE support (EXPERIMENTAL)"
202 depends on EXPERIMENTAL
203 help
204 If you have an IDE tape drive using the ATAPI protocol, say Y.
205 ATAPI is a newer protocol used by IDE tape and CD-ROM drives,
206 similar to the SCSI protocol. If you have an SCSI tape drive
207 however, you can say N here.
208
209 You should also say Y if you have an OnStream DI-30 tape drive; this
210 will not work with the SCSI protocol, until there is support for the
211 SC-30 and SC-50 versions.
212
213 If you say Y here, the tape drive will be identified at boot time
214 along with other IDE devices, as "hdb" or "hdc", or something
215 similar, and will be mapped to a character device such as "ht0"
216 (check the boot messages with dmesg). Be sure to consult the
217 <file:drivers/ide/ide-tape.c> and <file:Documentation/ide.txt> files
218 for usage information.
219
220 To compile this driver as a module, choose M here: the
221 module will be called ide-tape.
222
223config BLK_DEV_IDEFLOPPY
224 tristate "Include IDE/ATAPI FLOPPY support"
225 ---help---
226 If you have an IDE floppy drive which uses the ATAPI protocol,
227 answer Y. ATAPI is a newer protocol used by IDE CD-ROM/tape/floppy
228 drives, similar to the SCSI protocol.
229
230 The LS-120 and the IDE/ATAPI Iomega ZIP drive are also supported by
231 this driver. For information about jumper settings and the question
232 of when a ZIP drive uses a partition table, see
233 <http://www.win.tue.nl/~aeb/linux/zip/zip-1.html>.
234 (ATAPI PD-CD/CDR drives are not supported by this driver; support
235 for PD-CD/CDR drives is available if you answer Y to
236 "SCSI emulation support", below).
237
238 If you say Y here, the FLOPPY drive will be identified along with
239 other IDE devices, as "hdb" or "hdc", or something similar (check
240 the boot messages with dmesg).
241
242 To compile this driver as a module, choose M here: the
243 module will be called ide-floppy.
244
245config BLK_DEV_IDESCSI
246 tristate "SCSI emulation support"
247 depends on SCSI
248 ---help---
249 WARNING: ide-scsi is no longer needed for cd writing applications!
250 The 2.6 kernel supports direct writing to ide-cd, which eliminates
251 the need for ide-scsi + the entire scsi stack just for writing a
252 cd. The new method is more efficient in every way.
253
254 This will provide SCSI host adapter emulation for IDE ATAPI devices,
255 and will allow you to use a SCSI device driver instead of a native
256 ATAPI driver.
257
258 This is useful if you have an ATAPI device for which no native
259 driver has been written (for example, an ATAPI PD-CD drive);
260 you can then use this emulation together with an appropriate SCSI
261 device driver. In order to do this, say Y here and to "SCSI support"
262 and "SCSI generic support", below. You must then provide the kernel
263 command line "hdx=ide-scsi" (try "man bootparam" or see the
264 documentation of your boot loader (lilo or loadlin) about how to
265 pass options to the kernel at boot time) for devices if you want the
266 native EIDE sub-drivers to skip over the native support, so that
267 this SCSI emulation can be used instead.
268
269 Note that this option does NOT allow you to attach SCSI devices to a
270 box that doesn't have a SCSI host adapter installed.
271
272 If both this SCSI emulation and native ATAPI support are compiled
273 into the kernel, the native support will be used.
274
Hannes Reineckee3a59b42007-02-07 18:19:37 +0100275config BLK_DEV_IDEACPI
276 bool "IDE ACPI support"
277 depends on ACPI
278 ---help---
279 Implement ACPI support for generic IDE devices. On modern
280 machines ACPI support is required to properly handle ACPI S3 states.
281
Linus Torvalds1da177e2005-04-16 15:20:36 -0700282config IDE_TASK_IOCTL
283 bool "IDE Taskfile Access"
284 help
285 This is a direct raw access to the media. It is a complex but
286 elegant solution to test and validate the domain of the hardware and
Andreas Mohr3b6ce242006-02-03 03:04:54 -0800287 perform below the driver data recovery if needed. This is the most
Linus Torvalds1da177e2005-04-16 15:20:36 -0700288 basic form of media-forensics.
289
290 If you are unsure, say N here.
291
Bartlomiej Zolnierkiewiczecfd80e2007-05-10 00:01:09 +0200292config IDE_PROC_FS
293 bool "legacy /proc/ide/ support"
294 depends on IDE && PROC_FS
295 default y
296 help
297 This option enables support for the various files in
298 /proc/ide. In Linux 2.6 this has been superseded by
299 files in sysfs but many legacy applications rely on this.
300
301 If unsure say Y.
302
Linus Torvalds1da177e2005-04-16 15:20:36 -0700303comment "IDE chipset support/bugfixes"
304
305config IDE_GENERIC
306 tristate "generic/default IDE chipset support"
307 default y
308 help
309 If unsure, say Y.
310
311config BLK_DEV_CMD640
312 bool "CMD640 chipset bugfix/support"
313 depends on X86
314 ---help---
315 The CMD-Technologies CMD640 IDE chip is used on many common 486 and
316 Pentium motherboards, usually in combination with a "Neptune" or
317 "SiS" chipset. Unfortunately, it has a number of rather nasty
318 design flaws that can cause severe data corruption under many common
319 conditions. Say Y here to include code which tries to automatically
320 detect and correct the problems under Linux. This option also
321 enables access to the secondary IDE ports in some CMD640 based
322 systems.
323
324 This driver will work automatically in PCI based systems (most new
325 systems have PCI slots). But if your system uses VESA local bus
326 (VLB) instead of PCI, you must also supply a kernel boot parameter
327 to enable the CMD640 bugfix/support: "ide0=cmd640_vlb". (Try "man
328 bootparam" or see the documentation of your boot loader about how to
329 pass options to the kernel.)
330
331 The CMD640 chip is also used on add-in cards by Acculogic, and on
332 the "CSA-6400E PCI to IDE controller" that some people have. For
333 details, read <file:Documentation/ide.txt>.
334
335config BLK_DEV_CMD640_ENHANCED
336 bool "CMD640 enhanced support"
337 depends on BLK_DEV_CMD640
338 help
339 This option includes support for setting/autotuning PIO modes and
340 prefetch on CMD640 IDE interfaces. For details, read
341 <file:Documentation/ide.txt>. If you have a CMD640 IDE interface
342 and your BIOS does not already do this for you, then say Y here.
343 Otherwise say N.
344
345config BLK_DEV_IDEPNP
346 bool "PNP EIDE support"
347 depends on PNP
348 help
349 If you have a PnP (Plug and Play) compatible EIDE card and
350 would like the kernel to automatically detect and activate
351 it, say Y here.
352
353config BLK_DEV_IDEPCI
354 bool "PCI IDE chipset support" if PCI
355 default BLK_DEV_IDEDMA_PMAC if PPC_PMAC && BLK_DEV_IDEDMA_PMAC
356 help
357 Say Y here for PCI systems which use IDE drive(s).
358 This option helps the IDE driver to automatically detect and
359 configure all PCI-based IDE interfaces in your system.
360
361config IDEPCI_SHARE_IRQ
362 bool "Sharing PCI IDE interrupts support"
363 depends on PCI && BLK_DEV_IDEPCI
364 help
365 Some ATA/IDE chipsets have hardware support which allows for
366 sharing a single IRQ with other cards. To enable support for
367 this in the ATA/IDE driver, say Y here.
368
369 It is safe to say Y to this question, in most cases.
370 If unsure, say N.
371
Bartlomiej Zolnierkiewicz6d208b32007-05-10 00:01:11 +0200372config IDEPCI_PCIBUS_ORDER
373 def_bool PCI && BLK_DEV_IDE=y && BLK_DEV_IDEPCI
374
Linus Torvalds1da177e2005-04-16 15:20:36 -0700375config BLK_DEV_OFFBOARD
376 bool "Boot off-board chipsets first support"
377 depends on PCI && BLK_DEV_IDEPCI
378 help
379 Normally, IDE controllers built into the motherboard (on-board
380 controllers) are assigned to ide0 and ide1 while those on add-in PCI
381 cards (off-board controllers) are relegated to ide2 and ide3.
382 Answering Y here will allow you to reverse the situation, with
383 off-board controllers on ide0/1 and on-board controllers on ide2/3.
384 This can improve the usability of some boot managers such as lilo
385 when booting from a drive on an off-board controller.
386
387 If you say Y here, and you actually want to reverse the device scan
388 order as explained above, you also need to issue the kernel command
389 line option "ide=reverse". (Try "man bootparam" or see the
390 documentation of your boot loader (lilo or loadlin) about how to
391 pass options to the kernel at boot time.)
392
393 Note that, if you do this, the order of the hd* devices will be
394 rearranged which may require modification of fstab and other files.
395
396 If in doubt, say N.
397
398config BLK_DEV_GENERIC
399 tristate "Generic PCI IDE Chipset Support"
400 depends on BLK_DEV_IDEPCI
John Daikeredd023d2007-02-17 19:52:10 +0100401 help
402 This option provides generic support for various PCI IDE Chipsets
403 which otherwise might not be supported.
Linus Torvalds1da177e2005-04-16 15:20:36 -0700404
405config BLK_DEV_OPTI621
406 tristate "OPTi 82C621 chipset enhanced support (EXPERIMENTAL)"
407 depends on PCI && BLK_DEV_IDEPCI && EXPERIMENTAL
408 help
409 This is a driver for the OPTi 82C621 EIDE controller.
410 Please read the comments at the top of <file:drivers/ide/pci/opti621.c>.
411
412config BLK_DEV_RZ1000
413 tristate "RZ1000 chipset bugfix/support"
414 depends on PCI && BLK_DEV_IDEPCI && X86
415 help
416 The PC-Technologies RZ1000 IDE chip is used on many common 486 and
417 Pentium motherboards, usually along with the "Neptune" chipset.
418 Unfortunately, it has a rather nasty design flaw that can cause
419 severe data corruption under many conditions. Say Y here to include
420 code which automatically detects and corrects the problem under
421 Linux. This may slow disk throughput by a few percent, but at least
422 things will operate 100% reliably.
423
Linus Torvalds1da177e2005-04-16 15:20:36 -0700424config BLK_DEV_IDEDMA_PCI
425 bool "Generic PCI bus-master DMA support"
426 depends on PCI && BLK_DEV_IDEPCI
427 ---help---
428 If your PCI system uses IDE drive(s) (as opposed to SCSI, say) and
429 is capable of bus-master DMA operation (most Pentium PCI systems),
430 you will want to say Y here to reduce CPU overhead. You can then use
431 the "hdparm" utility to enable DMA for drives for which it was not
432 enabled automatically. By default, DMA is not enabled automatically
433 for these drives, but you can change that by saying Y to the
434 following question "Use DMA by default when available". You can get
435 the latest version of the hdparm utility from
436 <ftp://ibiblio.org/pub/Linux/system/hardware/>.
437
438 Read the comments at the beginning of <file:drivers/ide/ide-dma.c>
439 and the file <file:Documentation/ide.txt> for more information.
440
441 It is safe to say Y to this question.
442
443if BLK_DEV_IDEDMA_PCI
444
445config BLK_DEV_IDEDMA_FORCED
446 bool "Force enable legacy 2.0.X HOSTS to use DMA"
447 help
448 This is an old piece of lost code from Linux 2.0 Kernels.
449
450 Generally say N here.
451
Linus Torvalds1da177e2005-04-16 15:20:36 -0700452config IDEDMA_ONLYDISK
453 bool "Enable DMA only for disks "
Linus Torvalds1da177e2005-04-16 15:20:36 -0700454 help
455 This is used if you know your ATAPI Devices are going to fail DMA
456 Transfers.
457
458 Generally say N here.
459
460config BLK_DEV_AEC62XX
461 tristate "AEC62XX chipset support"
462 help
463 This driver adds explicit support for Acard AEC62xx (Artop ATP8xx)
464 IDE controllers. This allows the kernel to change PIO, DMA and UDMA
465 speeds and to configure the chip to optimum performance.
466
467config BLK_DEV_ALI15X3
468 tristate "ALI M15x3 chipset support"
469 help
470 This driver ensures (U)DMA support for ALI 1533, 1543 and 1543C
471 onboard chipsets. It also tests for Simplex mode and enables
472 normal dual channel support.
473
474 If you say Y here, you also need to say Y to "Use DMA by default
475 when available", above. Please read the comments at the top of
476 <file:drivers/ide/pci/alim15x3.c>.
477
478 If unsure, say N.
479
480config WDC_ALI15X3
481 bool "ALI M15x3 WDC support (DANGEROUS)"
482 depends on BLK_DEV_ALI15X3
483 ---help---
484 This allows for UltraDMA support for WDC drives that ignore CRC
485 checking. You are a fool for enabling this option, but there have
486 been requests. DO NOT COMPLAIN IF YOUR DRIVE HAS FS CORRUPTION, IF
487 YOU ENABLE THIS! No one will listen, just laugh for ignoring this
488 SERIOUS WARNING.
489
490 Using this option can allow WDC drives to run at ATA-4/5 transfer
491 rates with only an ATA-2 support structure.
492
493 SAY N!
494
495config BLK_DEV_AMD74XX
496 tristate "AMD and nVidia IDE support"
497 help
498 This driver adds explicit support for AMD-7xx and AMD-8111 chips
499 and also for the nVidia nForce chip. This allows the kernel to
500 change PIO, DMA and UDMA speeds and to configure the chip to
501 optimum performance.
502
503config BLK_DEV_ATIIXP
504 tristate "ATI IXP chipset IDE support"
505 depends on X86
506 help
507 This driver adds explicit support for ATI IXP chipset.
508 This allows the kernel to change PIO, DMA and UDMA speeds
509 and to configure the chip to optimum performance.
510
511 Say Y here if you have an ATI IXP chipset IDE controller.
512
513config BLK_DEV_CMD64X
514 tristate "CMD64{3|6|8|9} chipset support"
515 help
516 Say Y here if you have an IDE controller which uses any of these
517 chipsets: CMD643, CMD646, or CMD648.
518
519config BLK_DEV_TRIFLEX
520 tristate "Compaq Triflex IDE support"
521 help
522 Say Y here if you have a Compaq Triflex IDE controller, such
523 as those commonly found on Compaq Pentium-Pro systems
524
525config BLK_DEV_CY82C693
526 tristate "CY82C693 chipset support"
527 help
528 This driver adds detection and support for the CY82C693 chipset
529 used on Digital's PC-Alpha 164SX boards.
530
531 If you say Y here, you need to say Y to "Use DMA by default
532 when available" as well.
533
534config BLK_DEV_CS5520
535 tristate "Cyrix CS5510/20 MediaGX chipset support (VERY EXPERIMENTAL)"
536 depends on EXPERIMENTAL
537 help
Andreas Mohr3b6ce242006-02-03 03:04:54 -0800538 Include support for PIO tuning and virtual DMA on the Cyrix MediaGX
Linus Torvalds1da177e2005-04-16 15:20:36 -0700539 5510/5520 chipset. This will automatically be detected and
540 configured if found.
541
542 It is safe to say Y to this question.
543
544config BLK_DEV_CS5530
545 tristate "Cyrix/National Semiconductor CS5530 MediaGX chipset support"
546 help
547 Include support for UDMA on the Cyrix MediaGX 5530 chipset. This
548 will automatically be detected and configured if found.
549
550 It is safe to say Y to this question.
551
Jaya Kumarf5b2d8b2005-11-09 23:58:16 +0100552config BLK_DEV_CS5535
553 tristate "AMD CS5535 chipset support"
554 depends on X86 && !X86_64
555 help
556 Include support for UDMA on the NSC/AMD CS5535 companion chipset.
557 This will automatically be detected and configured if found.
558
559 It is safe to say Y to this question.
560
Linus Torvalds1da177e2005-04-16 15:20:36 -0700561config BLK_DEV_HPT34X
562 tristate "HPT34X chipset support"
563 help
564 This driver adds up to 4 more EIDE devices sharing a single
565 interrupt. The HPT343 chipset in its current form is a non-bootable
566 controller; the HPT345/HPT363 chipset is a bootable (needs BIOS FIX)
567 PCI UDMA controllers. This driver requires dynamic tuning of the
568 chipset during the ide-probe at boot time. It is reported to support
569 DVD II drives, by the manufacturer.
570
571config HPT34X_AUTODMA
572 bool "HPT34X AUTODMA support (EXPERIMENTAL)"
573 depends on BLK_DEV_HPT34X && EXPERIMENTAL
574 help
575 This is a dangerous thing to attempt currently! Please read the
576 comments at the top of <file:drivers/ide/pci/hpt34x.c>. If you say Y
577 here, then say Y to "Use DMA by default when available" as well.
578
579 If unsure, say N.
580
581config BLK_DEV_HPT366
582 tristate "HPT36X/37X chipset support"
583 ---help---
584 HPT366 is an Ultra DMA chipset for ATA-66.
585 HPT368 is an Ultra DMA chipset for ATA-66 RAID Based.
586 HPT370 is an Ultra DMA chipset for ATA-100.
587 HPT372 is an Ultra DMA chipset for ATA-100.
588 HPT374 is an Ultra DMA chipset for ATA-100.
589
590 This driver adds up to 4 more EIDE devices sharing a single
591 interrupt.
592
593 The HPT366 chipset in its current form is bootable. One solution
594 for this problem are special LILO commands for redirecting the
595 reference to device 0x80. The other solution is to say Y to "Boot
596 off-board chipsets first support" (CONFIG_BLK_DEV_OFFBOARD) unless
597 your mother board has the chipset natively mounted. Regardless one
598 should use the fore mentioned option and call at LILO or include
599 "ide=reverse" in LILO's append-line.
600
601 This driver requires dynamic tuning of the chipset during the
602 ide-probe at boot. It is reported to support DVD II drives, by the
603 manufacturer.
604
Alan Coxbbb3bbd2006-10-03 01:14:12 -0700605config BLK_DEV_JMICRON
606 tristate "JMicron JMB36x support"
607 help
608 Basic support for the JMicron ATA controllers. For full support
609 use the libata drivers.
610
Linus Torvalds1da177e2005-04-16 15:20:36 -0700611config BLK_DEV_SC1200
612 tristate "National SCx200 chipset support"
613 help
614 This driver adds support for the built in IDE on the National
615 SCx200 series of embedded x86 "Geode" systems
616
617config BLK_DEV_PIIX
618 tristate "Intel PIIXn chipsets support"
619 help
620 This driver adds explicit support for Intel PIIX and ICH chips
621 and also for the Efar Victory66 (slc90e66) chip. This allows
622 the kernel to change PIO, DMA and UDMA speeds and to configure
623 the chip to optimum performance.
624
Jack Lee9c6712c2007-02-07 18:19:09 +0100625config BLK_DEV_IT8213
626 tristate "IT8213 IDE support"
627 help
628 This driver adds support for the ITE 8213 IDE controller.
629
Alan Coxda9091e2005-06-27 15:24:30 -0700630config BLK_DEV_IT821X
631 tristate "IT821X IDE support"
632 help
633 This driver adds support for the ITE 8211 IDE controller and the
634 IT 8212 IDE RAID controller in both RAID and pass-through mode.
635
Linus Torvalds1da177e2005-04-16 15:20:36 -0700636config BLK_DEV_NS87415
637 tristate "NS87415 chipset support"
638 help
639 This driver adds detection and support for the NS87415 chip
Matthew Wilcox41df8942005-11-18 16:18:40 -0500640 (used mainly on SPARC64 and PA-RISC machines).
Linus Torvalds1da177e2005-04-16 15:20:36 -0700641
642 Please read the comments at the top of <file:drivers/ide/pci/ns87415.c>.
643
644config BLK_DEV_PDC202XX_OLD
645 tristate "PROMISE PDC202{46|62|65|67} support"
646 help
647 Promise Ultra33 or PDC20246
648 Promise Ultra66 or PDC20262
649 Promise Ultra100 or PDC20265/PDC20267/PDC20268
650
651 This driver adds up to 4 more EIDE devices sharing a single
652 interrupt. This add-on card is a bootable PCI UDMA controller. Since
653 multiple cards can be installed and there are BIOS ROM problems that
654 happen if the BIOS revisions of all installed cards (three-max) do
655 not match, the driver attempts to do dynamic tuning of the chipset
656 at boot-time for max-speed. Ultra33 BIOS 1.25 or newer is required
657 for more than one card. This card may require that you say Y to
658 "Special UDMA Feature".
659
660 If you say Y here, you need to say Y to "Use DMA by default when
661 available" as well.
662
663 Please read the comments at the top of
664 <file:drivers/ide/pci/pdc202xx_old.c>.
665
666 If unsure, say N.
667
668config PDC202XX_BURST
669 bool "Special UDMA Feature"
670 depends on BLK_DEV_PDC202XX_OLD
671 help
672 This option causes the pdc202xx driver to enable UDMA modes on the
673 PDC202xx even when the PDC202xx BIOS has not done so.
674
675 It was originally designed for the PDC20246/Ultra33, whose BIOS will
676 only setup UDMA on the first two PDC20246 cards. It has also been
Andreas Mohr3b6ce242006-02-03 03:04:54 -0800677 used successfully on a PDC20265/Ultra100, allowing use of UDMA modes
Linus Torvalds1da177e2005-04-16 15:20:36 -0700678 when the PDC20265 BIOS has been disabled (for faster boot up).
679
680 Please read the comments at the top of
681 <file:drivers/ide/pci/pdc202xx_old.c>.
682
683 If unsure, say N.
684
685config BLK_DEV_PDC202XX_NEW
686 tristate "PROMISE PDC202{68|69|70|71|75|76|77} support"
687
Linus Torvalds1da177e2005-04-16 15:20:36 -0700688config BLK_DEV_SVWKS
689 tristate "ServerWorks OSB4/CSB5/CSB6 chipsets support"
690 help
691 This driver adds PIO/(U)DMA support for the ServerWorks OSB4/CSB5
692 chipsets.
693
694config BLK_DEV_SGIIOC4
Brent Casavante5d310b2005-06-21 17:16:01 -0700695 tristate "Silicon Graphics IOC4 chipset ATA/ATAPI support"
696 depends on (IA64_SGI_SN2 || IA64_GENERIC) && SGI_IOC4
Brent Casavant9578bcf2006-07-30 03:03:46 -0700697 select IDEPCI_SHARE_IRQ
Linus Torvalds1da177e2005-04-16 15:20:36 -0700698 help
699 This driver adds PIO & MultiMode DMA-2 support for the SGI IOC4
700 chipset, which has one channel and can support two devices.
701 Please say Y here if you have an Altix System from SGI.
702
703config BLK_DEV_SIIMAGE
704 tristate "Silicon Image chipset support"
705 help
706 This driver adds PIO/(U)DMA support for the SI CMD680 and SII
707 3112 (Serial ATA) chips.
708
709config BLK_DEV_SIS5513
710 tristate "SiS5513 chipset support"
711 depends on X86
712 ---help---
713 This driver ensures (U)DMA support for SIS5513 chipset family based
714 mainboards.
715
716 The following chipsets are supported:
717 ATA16: SiS5511, SiS5513
718 ATA33: SiS5591, SiS5597, SiS5598, SiS5600
719 ATA66: SiS530, SiS540, SiS620, SiS630, SiS640
720 ATA100: SiS635, SiS645, SiS650, SiS730, SiS735, SiS740,
721 SiS745, SiS750
722
723 If you say Y here, you need to say Y to "Use DMA by default when
724 available" as well.
725
726 Please read the comments at the top of <file:drivers/ide/pci/sis5513.c>.
727
Olaf Hering9468f682006-12-06 20:39:55 -0800728config BLK_DEV_SL82C105
729 tristate "Winbond SL82c105 support"
730 depends on (PPC || ARM)
731 help
732 If you have a Winbond SL82c105 IDE controller, say Y here to enable
733 special configuration for this chip. This is common on various CHRP
734 motherboards, but could be used elsewhere. If in doubt, say Y.
735
Linus Torvalds1da177e2005-04-16 15:20:36 -0700736config BLK_DEV_SLC90E66
737 tristate "SLC90E66 chipset support"
738 help
Andreas Mohr3b6ce242006-02-03 03:04:54 -0800739 This driver ensures (U)DMA support for Victory66 SouthBridges for
Linus Torvalds1da177e2005-04-16 15:20:36 -0700740 SMsC with Intel NorthBridges. This is an Ultra66 based chipset.
741 The nice thing about it is that you can mix Ultra/DMA/PIO devices
742 and it will handle timing cycles. Since this is an improved
743 look-a-like to the PIIX4 it should be a nice addition.
744
745 If you say Y here, you need to say Y to "Use DMA by default when
746 available" as well.
747
748 Please read the comments at the top of
749 <file:drivers/ide/pci/slc90e66.c>.
750
751config BLK_DEV_TRM290
752 tristate "Tekram TRM290 chipset support"
753 help
754 This driver adds support for bus master DMA transfers
755 using the Tekram TRM290 PCI IDE chip. Volunteers are
756 needed for further tweaking and development.
757 Please read the comments at the top of <file:drivers/ide/pci/trm290.c>.
758
759config BLK_DEV_VIA82CXXX
760 tristate "VIA82CXXX chipset support"
761 help
762 This driver adds explicit support for VIA BusMastering IDE chips.
763 This allows the kernel to change PIO, DMA and UDMA speeds and to
764 configure the chip to optimum performance.
765
Sergei Shtylyov33dced22007-02-07 18:18:45 +0100766config BLK_DEV_TC86C001
767 tristate "Toshiba TC86C001 support"
768 help
769 This driver adds support for Toshiba TC86C001 GOKU-S chip.
770
Kou Ishizakia1067db2007-03-17 21:57:25 +0100771config BLK_DEV_CELLEB
772 tristate "Toshiba's Cell Reference Set IDE support"
773 depends on PPC_CELLEB
774 help
775 This driver provides support for the built-in IDE controller on
776 Toshiba Cell Reference Board.
777 If unsure, say Y.
778
Linus Torvalds1da177e2005-04-16 15:20:36 -0700779endif
780
781config BLK_DEV_IDE_PMAC
782 bool "Builtin PowerMac IDE support"
783 depends on PPC_PMAC && IDE=y
784 help
785 This driver provides support for the built-in IDE controller on
786 most of the recent Apple Power Macintoshes and PowerBooks.
787 If unsure, say Y.
788
789config BLK_DEV_IDE_PMAC_ATA100FIRST
790 bool "Probe internal ATA/100 (Kauai) first"
791 depends on BLK_DEV_IDE_PMAC
792 help
793 This option will cause the ATA/100 controller found in UniNorth2
794 based machines (Windtunnel PowerMac, Aluminium PowerBooks, ...)
795 to be probed before the ATA/66 and ATA/33 controllers. Without
796 these, those machine used to have the hard disk on hdc and the
797 CD-ROM on hda. This option changes this to more natural hda for
798 hard disk and hdc for CD-ROM.
799
800config BLK_DEV_IDEDMA_PMAC
801 bool "PowerMac IDE DMA support"
802 depends on BLK_DEV_IDE_PMAC
Juha-Matti Tapio0ac72b32005-08-18 22:13:44 +0200803 select BLK_DEV_IDEDMA_PCI
Linus Torvalds1da177e2005-04-16 15:20:36 -0700804 help
805 This option allows the driver for the built-in IDE controller on
806 Power Macintoshes and PowerBooks to use DMA (direct memory access)
807 to transfer data to and from memory. Saying Y is safe and improves
808 performance.
809
Ralf Baechle4237f222005-11-17 16:23:50 +0000810config BLK_DEV_IDE_SWARM
811 tristate "IDE for Sibyte evaluation boards"
812 depends on SIBYTE_SB1xxx_SOC
813
Pete Popov26a940e2005-09-15 08:03:12 +0000814config BLK_DEV_IDE_AU1XXX
815 bool "IDE for AMD Alchemy Au1200"
816 depends on SOC_AU1200
817choice
818 prompt "IDE Mode for AMD Alchemy Au1200"
819 default CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA
820 depends on SOC_AU1200 && BLK_DEV_IDE_AU1XXX
821
822config BLK_DEV_IDE_AU1XXX_PIO_DBDMA
823 bool "PIO+DbDMA IDE for AMD Alchemy Au1200"
824
825config BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
826 bool "MDMA2+DbDMA IDE for AMD Alchemy Au1200"
827 depends on SOC_AU1200 && BLK_DEV_IDE_AU1XXX
828endchoice
829
Pete Popov26a940e2005-09-15 08:03:12 +0000830config BLK_DEV_IDE_AU1XXX_SEQTS_PER_RQ
831 int "Maximum transfer size (KB) per request (up to 128)"
832 default "128"
Robert P. J. Daybef1f402006-12-12 20:04:19 +0100833 depends on BLK_DEV_IDE_AU1XXX
Pete Popov26a940e2005-09-15 08:03:12 +0000834
Linus Torvalds1da177e2005-04-16 15:20:36 -0700835config IDE_ARM
836 def_bool ARM && (ARCH_A5K || ARCH_CLPS7500 || ARCH_RPC || ARCH_SHARK)
837
838config BLK_DEV_IDE_ICSIDE
839 tristate "ICS IDE interface support"
840 depends on ARM && ARCH_ACORN
841 help
842 On Acorn systems, say Y here if you wish to use the ICS IDE
843 interface card. This is not required for ICS partition support.
844 If you are unsure, say N to this.
845
846config BLK_DEV_IDEDMA_ICS
847 bool "ICS DMA support"
848 depends on BLK_DEV_IDE_ICSIDE
849 help
850 Say Y here if you want to add DMA (Direct Memory Access) support to
851 the ICS IDE driver.
852
Linus Torvalds1da177e2005-04-16 15:20:36 -0700853config BLK_DEV_IDE_RAPIDE
854 tristate "RapIDE interface support"
855 depends on ARM && ARCH_ACORN
856 help
857 Say Y here if you want to support the Yellowstone RapIDE controller
858 manufactured for use with Acorn computers.
859
860config BLK_DEV_IDE_BAST
861 tristate "Simtec BAST / Thorcom VR1000 IDE support"
862 depends on ARM && (ARCH_BAST || MACH_VR1000)
863 help
864 Say Y here if you want to support the onboard IDE channels on the
865 Simtec BAST or the Thorcom VR1000
866
867config BLK_DEV_GAYLE
868 bool "Amiga Gayle IDE interface support"
869 depends on AMIGA
870 help
871 This is the IDE driver for the Amiga Gayle IDE interface. It supports
872 both the `A1200 style' and `A4000 style' of the Gayle IDE interface,
873 This includes builtin IDE interfaces on some Amiga models (A600,
874 A1200, A4000, and A4000T), and IDE interfaces on the Zorro expansion
875 bus (M-Tech E-Matrix 530 expansion card).
876 Say Y if you have an Amiga with a Gayle IDE interface and want to use
877 IDE devices (hard disks, CD-ROM drives, etc.) that are connected to
878 it.
879 Note that you also have to enable Zorro bus support if you want to
880 use Gayle IDE interfaces on the Zorro expansion bus.
881
882config BLK_DEV_IDEDOUBLER
883 bool "Amiga IDE Doubler support (EXPERIMENTAL)"
884 depends on BLK_DEV_GAYLE && EXPERIMENTAL
885 ---help---
886 This driver provides support for the so-called `IDE doublers' (made
887 by various manufacturers, e.g. Eyetech) that can be connected to the
888 builtin IDE interface of some Amiga models. Using such an IDE
889 doubler, you can connect up to four instead of two IDE devices on
890 the Amiga's builtin IDE interface.
891
892 Note that the normal Amiga Gayle IDE driver may not work correctly
893 if you have an IDE doubler and don't enable this driver!
894
895 Say Y if you have an IDE doubler. The driver is enabled at kernel
896 runtime using the "ide=doubler" kernel boot parameter.
897
898config BLK_DEV_BUDDHA
899 bool "Buddha/Catweasel/X-Surf IDE interface support (EXPERIMENTAL)"
900 depends on ZORRO && EXPERIMENTAL
901 help
902 This is the IDE driver for the IDE interfaces on the Buddha,
903 Catweasel and X-Surf expansion boards. It supports up to two interfaces
904 on the Buddha, three on the Catweasel and two on the X-Surf.
905
906 Say Y if you have a Buddha or Catweasel expansion board and want to
907 use IDE devices (hard disks, CD-ROM drives, etc.) that are connected
908 to one of its IDE interfaces.
909
910config BLK_DEV_FALCON_IDE
911 bool "Falcon IDE interface support"
912 depends on ATARI
913 help
914 This is the IDE driver for the builtin IDE interface on the Atari
915 Falcon. Say Y if you have a Falcon and want to use IDE devices (hard
916 disks, CD-ROM drives, etc.) that are connected to the builtin IDE
917 interface.
918
919config BLK_DEV_MAC_IDE
920 bool "Macintosh Quadra/Powerbook IDE interface support"
921 depends on MAC
922 help
923 This is the IDE driver for the builtin IDE interface on some m68k
924 Macintosh models. It supports both the `Quadra style' (used in
925 Quadra/ Centris 630 and Performa 588 models) and `Powerbook style'
926 (used in the Powerbook 150 and 190 models) IDE interface.
927
928 Say Y if you have such an Macintosh model and want to use IDE
929 devices (hard disks, CD-ROM drives, etc.) that are connected to the
930 builtin IDE interface.
931
932config BLK_DEV_Q40IDE
933 bool "Q40/Q60 IDE interface support"
934 depends on Q40
935 help
936 Enable the on-board IDE controller in the Q40/Q60. This should
937 normally be on; disable it only if you are running a custom hard
938 drive subsystem through an expansion card.
939
940config BLK_DEV_MPC8xx_IDE
941 bool "MPC8xx IDE support"
Marcelo Tosatti38f9d412005-12-15 02:12:53 +0100942 depends on 8xx && IDE=y && BLK_DEV_IDE=y
Linus Torvalds1da177e2005-04-16 15:20:36 -0700943 help
944 This option provides support for IDE on Motorola MPC8xx Systems.
945 Please see 'Type of MPC8xx IDE interface' for details.
946
947 If unsure, say N.
948
949choice
950 prompt "Type of MPC8xx IDE interface"
951 depends on BLK_DEV_MPC8xx_IDE
952 default IDE_8xx_PCCARD
953
954config IDE_8xx_PCCARD
955 bool "8xx_PCCARD"
956 ---help---
957 Select how the IDE devices are connected to the MPC8xx system:
958
959 8xx_PCCARD uses the 8xx internal PCMCIA interface in combination
960 with a PC Card (e.g. ARGOSY portable Hard Disk Adapter),
961 ATA PC Card HDDs or ATA PC Flash Cards (example: TQM8xxL
962 systems)
963
964 8xx_DIRECT is used for directly connected IDE devices using the 8xx
965 internal PCMCIA interface (example: IVMS8 systems)
966
967 EXT_DIRECT is used for IDE devices directly connected to the 8xx
968 bus using some glue logic, but _not_ the 8xx internal
969 PCMCIA interface (example: IDIF860 systems)
970
971config IDE_8xx_DIRECT
972 bool "8xx_DIRECT"
973
974config IDE_EXT_DIRECT
975 bool "EXT_DIRECT"
976
977endchoice
978
979# no isa -> no vlb
980config IDE_CHIPSETS
981 bool "Other IDE chipset support"
982 depends on ISA
983 ---help---
984 Say Y here if you want to include enhanced support for various IDE
985 interface chipsets used on motherboards and add-on cards. You can
986 then pick your particular IDE chip from among the following options.
987 This enhanced support may be necessary for Linux to be able to
988 access the 3rd/4th drives in some systems. It may also enable
989 setting of higher speed I/O rates to improve system performance with
990 these chipsets. Most of these also require special kernel boot
991 parameters to actually turn on the support at runtime; you can find
992 a list of these in the file <file:Documentation/ide.txt>.
993
994 People with SCSI-only systems can say N here.
995
996if IDE_CHIPSETS
997
998comment "Note: most of these also require special kernel boot parameters"
999
1000config BLK_DEV_4DRIVES
1001 bool "Generic 4 drives/port support"
1002 help
1003 Certain older chipsets, including the Tekram 690CD, use a single set
1004 of I/O ports at 0x1f0 to control up to four drives, instead of the
1005 customary two drives per port. Support for this can be enabled at
1006 runtime using the "ide0=four" kernel boot parameter if you say Y
1007 here.
1008
1009config BLK_DEV_ALI14XX
1010 tristate "ALI M14xx support"
1011 help
Bartlomiej Zolnierkiewicz84913882007-03-03 17:48:55 +01001012 This driver is enabled at runtime using the "ali14xx.probe" kernel
Linus Torvalds1da177e2005-04-16 15:20:36 -07001013 boot parameter. It enables support for the secondary IDE interface
1014 of the ALI M1439/1443/1445/1487/1489 chipsets, and permits faster
1015 I/O speeds to be set as well. See the files
1016 <file:Documentation/ide.txt> and <file:drivers/ide/legacy/ali14xx.c> for
1017 more info.
1018
1019config BLK_DEV_DTC2278
1020 tristate "DTC-2278 support"
1021 help
Bartlomiej Zolnierkiewicz84913882007-03-03 17:48:55 +01001022 This driver is enabled at runtime using the "dtc2278.probe" kernel
Linus Torvalds1da177e2005-04-16 15:20:36 -07001023 boot parameter. It enables support for the secondary IDE interface
1024 of the DTC-2278 card, and permits faster I/O speeds to be set as
1025 well. See the <file:Documentation/ide.txt> and
1026 <file:drivers/ide/legacy/dtc2278.c> files for more info.
1027
1028config BLK_DEV_HT6560B
1029 tristate "Holtek HT6560B support"
1030 help
Bartlomiej Zolnierkiewicz84913882007-03-03 17:48:55 +01001031 This driver is enabled at runtime using the "ht6560b.probe" kernel
Linus Torvalds1da177e2005-04-16 15:20:36 -07001032 boot parameter. It enables support for the secondary IDE interface
1033 of the Holtek card, and permits faster I/O speeds to be set as well.
1034 See the <file:Documentation/ide.txt> and
1035 <file:drivers/ide/legacy/ht6560b.c> files for more info.
1036
1037config BLK_DEV_QD65XX
1038 tristate "QDI QD65xx support"
1039 help
Bartlomiej Zolnierkiewicz84913882007-03-03 17:48:55 +01001040 This driver is enabled at runtime using the "qd65xx.probe" kernel
Linus Torvalds1da177e2005-04-16 15:20:36 -07001041 boot parameter. It permits faster I/O speeds to be set. See the
1042 <file:Documentation/ide.txt> and <file:drivers/ide/legacy/qd65xx.c> for
1043 more info.
1044
1045config BLK_DEV_UMC8672
1046 tristate "UMC-8672 support"
1047 help
Bartlomiej Zolnierkiewicz84913882007-03-03 17:48:55 +01001048 This driver is enabled at runtime using the "umc8672.probe" kernel
Linus Torvalds1da177e2005-04-16 15:20:36 -07001049 boot parameter. It enables support for the secondary IDE interface
1050 of the UMC-8672, and permits faster I/O speeds to be set as well.
1051 See the files <file:Documentation/ide.txt> and
1052 <file:drivers/ide/legacy/umc8672.c> for more info.
1053
1054endif
1055
1056config BLK_DEV_IDEDMA
Pete Popov26a940e2005-09-15 08:03:12 +00001057 def_bool BLK_DEV_IDEDMA_PCI || BLK_DEV_IDEDMA_PMAC || BLK_DEV_IDEDMA_ICS || BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
Linus Torvalds1da177e2005-04-16 15:20:36 -07001058
1059config IDEDMA_IVB
1060 bool "IGNORE word93 Validation BITS"
1061 depends on BLK_DEV_IDEDMA_PCI || BLK_DEV_IDEDMA_PMAC || BLK_DEV_IDEDMA_ICS
1062 ---help---
1063 There are unclear terms in ATA-4 and ATA-5 standards how certain
1064 hardware (an 80c ribbon) should be detected. Different interpretations
1065 of the standards have been released in hardware. This causes problems:
1066 for example, a host with Ultra Mode 4 (or higher) will not run
1067 in that mode with an 80c ribbon.
1068
1069 If you are experiencing compatibility or performance problems, you
Andreas Mohr3b6ce242006-02-03 03:04:54 -08001070 MAY try to answer Y here. However, it does not necessarily solve
Linus Torvalds1da177e2005-04-16 15:20:36 -07001071 any of your problems, it could even cause more of them.
1072
1073 It is normally safe to answer Y; however, the default is N.
1074
Linus Torvalds1da177e2005-04-16 15:20:36 -07001075endif
1076
1077config BLK_DEV_HD_ONLY
1078 bool "Old hard disk (MFM/RLL/IDE) driver"
1079 depends on BLK_DEV_IDE=n
1080 help
1081 There are two drivers for MFM/RLL/IDE hard disks. Most people use
1082 the newer enhanced driver, but this old one is still around for two
1083 reasons. Some older systems have strange timing problems and seem to
1084 work only with the old driver (which itself does not work with some
1085 newer systems). The other reason is that the old driver is smaller,
1086 since it lacks the enhanced functionality of the new one. This makes
1087 it a good choice for systems with very tight memory restrictions, or
1088 for systems with only older MFM/RLL/ESDI drives. Choosing the old
1089 driver can save 13 KB or so of kernel memory.
1090
1091 If you are unsure, then just choose the Enhanced IDE/MFM/RLL driver
1092 instead of this one. For more detailed information, read the
1093 Disk-HOWTO, available from
1094 <http://www.tldp.org/docs.html#howto>.
1095
1096config BLK_DEV_HD
1097 def_bool BLK_DEV_HD_IDE || BLK_DEV_HD_ONLY
1098
Jan Engelhardte0ff9cd2007-05-16 00:51:46 +02001099endif # IDE