drivers/ide/Kconfig

   1 #
   2 # IDE ATA ATAPI Block device driver configuration
   3 #
   4 # Andre Hedrick <andre@linux-ide.org>
   5 #
   6
   7 menuconfig IDE
   8         tristate "ATA/ATAPI/MFM/RLL support"
   9         depends on BLOCK
  10         depends on HAS_IOMEM
  11         ---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
  53 if IDE
  54
  55 config IDE_MAX_HWIFS
  56         int "Max IDE interfaces"
  57         depends on ALPHA || SUPERH || IA64 || EMBEDDED
  58         range 1 10
  59         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
  65 config 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
  95 if BLK_DEV_IDE
  96
  97 comment "Please see Documentation/ide.txt for help/info on IDE drives"
  98
  99 config 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
 105           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".
 109
 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
 121 config 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
 139 config 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
 154 config IDEDISK_MULTI_MODE
 155         bool "Use multiple sector mode for Programmed Input/Output by default"
 156         help
 157           This setting is irrelevant for most IDE disks, with direct memory
 158           access, to which multiple sector mode does not apply. Multiple sector
 159           mode is a feature of most modern IDE hard drives, permitting the
 160           transfer of multiple sectors per Programmed Input/Output interrupt,
 161           rather than the usual one sector per interrupt. When this feature is
 162           enabled, it can reduce operating system overhead for disk Programmed
 163           Input/Output. On some systems, it also can increase the data
 164           throughput of Programmed Input/Output. Some drives, however, seemed
 165           to run slower with multiple sector mode enabled. Some drives claimed
 166           to support multiple sector mode, but lost data at some settings.
 167           Under rare circumstances, such failures could result in massive
 168           filesystem corruption.
 169
 170           If you get the following error, try to say Y here:
 171
 172           hda: set_multmode: status=0x51 { DriveReady SeekComplete Error }
 173           hda: set_multmode: error=0x04 { DriveStatusError }
 174
 175           If in doubt, say N.
 176
 177 config BLK_DEV_IDECS
 178         tristate "PCMCIA IDE support"
 179         depends on PCMCIA
 180         help
 181           Support for Compact Flash cards, outboard IDE disks, tape drives,
 182           and CD-ROM drives connected through a PCMCIA card.
 183
 184 config BLK_DEV_DELKIN
 185         tristate "Cardbus IDE support (Delkin/ASKA/Workbit)"
 186         depends on CARDBUS && PCI
 187         help
 188           Support for Delkin, ASKA, and Workbit Cardbus CompactFlash
 189           Adapters.  This may also work for similar SD and XD adapters.
 190
 191 config BLK_DEV_IDECD
 192         tristate "Include IDE/ATAPI CDROM support"
 193         ---help---
 194           If you have a CD-ROM drive using the ATAPI protocol, say Y. ATAPI is
 195           a newer protocol used by IDE CD-ROM and TAPE drives, similar to the
 196           SCSI protocol. Most new CD-ROM drives use ATAPI, including the
 197           NEC-260, Mitsumi FX400, Sony 55E, and just about all non-SCSI
 198           double(2X) or better speed drives.
 199
 200           If you say Y here, the CD-ROM drive will be identified at boot time
 201           along with other IDE devices, as "hdb" or "hdc", or something
 202           similar (check the boot messages with dmesg). If this is your only
 203           CD-ROM drive, you can say N to all other CD-ROM options, but be sure
 204           to say Y or M to "ISO 9660 CD-ROM file system support".
 205
 206           To compile this driver as a module, choose M here: the
 207           module will be called ide-cd.
 208
 209 config BLK_DEV_IDETAPE
 210         tristate "Include IDE/ATAPI TAPE support (EXPERIMENTAL)"
 211         depends on EXPERIMENTAL
 212         help
 213           If you have an IDE tape drive using the ATAPI protocol, say Y.
 214           ATAPI is a newer protocol used by IDE tape and CD-ROM drives,
 215           similar to the SCSI protocol.  If you have an SCSI tape drive
 216           however, you can say N here.
 217
 218           You should also say Y if you have an OnStream DI-30 tape drive; this
 219           will not work with the SCSI protocol, until there is support for the
 220           SC-30 and SC-50 versions.
 221
 222           If you say Y here, the tape drive will be identified at boot time
 223           along with other IDE devices, as "hdb" or "hdc", or something
 224           similar, and will be mapped to a character device such as "ht0"
 225           (check the boot messages with dmesg).  Be sure to consult the
 226           <file:drivers/ide/ide-tape.c> and <file:Documentation/ide.txt> files
 227           for usage information.
 228
 229           To compile this driver as a module, choose M here: the
 230           module will be called ide-tape.
 231
 232 config BLK_DEV_IDEFLOPPY
 233         tristate "Include IDE/ATAPI FLOPPY support"
 234         ---help---
 235           If you have an IDE floppy drive which uses the ATAPI protocol,
 236           answer Y.  ATAPI is a newer protocol used by IDE CD-ROM/tape/floppy
 237           drives, similar to the SCSI protocol.
 238
 239           The LS-120 and the IDE/ATAPI Iomega ZIP drive are also supported by
 240           this driver. For information about jumper settings and the question
 241           of when a ZIP drive uses a partition table, see
 242           <http://www.win.tue.nl/~aeb/linux/zip/zip-1.html>.
 243           (ATAPI PD-CD/CDR drives are not supported by this driver; support
 244           for PD-CD/CDR drives is available if you answer Y to
 245           "SCSI emulation support", below).
 246
 247           If you say Y here, the FLOPPY drive will be identified along with
 248           other IDE devices, as "hdb" or "hdc", or something similar (check
 249           the boot messages with dmesg).
 250
 251           To compile this driver as a module, choose M here: the
 252           module will be called ide-floppy.
 253
 254 config BLK_DEV_IDESCSI
 255         tristate "SCSI emulation support"
 256         depends on SCSI
 257         ---help---
 258           WARNING: ide-scsi is no longer needed for cd writing applications!
 259           The 2.6 kernel supports direct writing to ide-cd, which eliminates
 260           the need for ide-scsi + the entire scsi stack just for writing a
 261           cd. The new method is more efficient in every way.
 262
 263           This will provide SCSI host adapter emulation for IDE ATAPI devices,
 264           and will allow you to use a SCSI device driver instead of a native
 265           ATAPI driver.
 266
 267           This is useful if you have an ATAPI device for which no native
 268           driver has been written (for example, an ATAPI PD-CD drive);
 269           you can then use this emulation together with an appropriate SCSI
 270           device driver. In order to do this, say Y here and to "SCSI support"
 271           and "SCSI generic support", below. You must then provide the kernel
 272           command line "hdx=ide-scsi" (try "man bootparam" or see the
 273           documentation of your boot loader (lilo or loadlin) about how to
 274           pass options to the kernel at boot time) for devices if you want the
 275           native EIDE sub-drivers to skip over the native support, so that
 276           this SCSI emulation can be used instead.
 277
 278           Note that this option does NOT allow you to attach SCSI devices to a
 279           box that doesn't have a SCSI host adapter installed.
 280
 281           If both this SCSI emulation and native ATAPI support are compiled
 282           into the kernel, the native support will be used.
 283
 284 config BLK_DEV_IDEACPI
 285         bool "IDE ACPI support"
 286         depends on ACPI
 287         ---help---
 288           Implement ACPI support for generic IDE devices. On modern
 289           machines ACPI support is required to properly handle ACPI S3 states.
 290
 291 config IDE_TASK_IOCTL
 292         bool "IDE Taskfile Access"
 293         help
 294           This is a direct raw access to the media.  It is a complex but
 295           elegant solution to test and validate the domain of the hardware and
 296           perform below the driver data recovery if needed.  This is the most
 297           basic form of media-forensics.
 298
 299           If you are unsure, say N here.
 300
 301 config IDE_PROC_FS
 302         bool "legacy /proc/ide/ support"
 303         depends on IDE && PROC_FS
 304         default y
 305         help
 306           This option enables support for the various files in
 307           /proc/ide.  In Linux 2.6 this has been superseded by
 308           files in sysfs but many legacy applications rely on this.
 309
 310           If unsure say Y.
 311
 312 comment "IDE chipset support/bugfixes"
 313
 314 config IDE_GENERIC
 315         tristate "generic/default IDE chipset support"
 316         help
 317           If unsure, say N.
 318
 319 config BLK_DEV_PLATFORM
 320         tristate "Platform driver for IDE interfaces"
 321         help
 322           This is the platform IDE driver, used mostly for Memory Mapped
 323           IDE devices, like Compact Flashes running in True IDE mode.
 324
 325           If unsure, say N.
 326
 327 config BLK_DEV_CMD640
 328         bool "CMD640 chipset bugfix/support"
 329         depends on X86
 330         ---help---
 331           The CMD-Technologies CMD640 IDE chip is used on many common 486 and
 332           Pentium motherboards, usually in combination with a "Neptune" or
 333           "SiS" chipset. Unfortunately, it has a number of rather nasty
 334           design flaws that can cause severe data corruption under many common
 335           conditions. Say Y here to include code which tries to automatically
 336           detect and correct the problems under Linux. This option also
 337           enables access to the secondary IDE ports in some CMD640 based
 338           systems.
 339
 340           This driver will work automatically in PCI based systems (most new
 341           systems have PCI slots). But if your system uses VESA local bus
 342           (VLB) instead of PCI, you must also supply a kernel boot parameter
 343           to enable the CMD640 bugfix/support: "ide0=cmd640_vlb". (Try "man
 344           bootparam" or see the documentation of your boot loader about how to
 345           pass options to the kernel.)
 346
 347           The CMD640 chip is also used on add-in cards by Acculogic, and on
 348           the "CSA-6400E PCI to IDE controller" that some people have. For
 349           details, read <file:Documentation/ide.txt>.
 350
 351 config BLK_DEV_CMD640_ENHANCED
 352         bool "CMD640 enhanced support"
 353         depends on BLK_DEV_CMD640
 354         help
 355           This option includes support for setting/autotuning PIO modes and
 356           prefetch on CMD640 IDE interfaces.  For details, read
 357           <file:Documentation/ide.txt>. If you have a CMD640 IDE interface
 358           and your BIOS does not already do this for you, then say Y here.
 359           Otherwise say N.
 360
 361 config BLK_DEV_IDEPNP
 362         bool "PNP EIDE support"
 363         depends on PNP
 364         select IDE_GENERIC
 365         help
 366           If you have a PnP (Plug and Play) compatible EIDE card and
 367           would like the kernel to automatically detect and activate
 368           it, say Y here.
 369
 370 if PCI
 371
 372 comment "PCI IDE chipsets support"
 373
 374 config BLK_DEV_IDEPCI
 375         bool
 376
 377 config IDEPCI_PCIBUS_ORDER
 378         def_bool BLK_DEV_IDE=y && BLK_DEV_IDEPCI
 379
 380 # TODO: split it on per host driver config options (or module parameters)
 381 config BLK_DEV_OFFBOARD
 382         bool "Boot off-board chipsets first support (DEPRECATED)"
 383         depends on BLK_DEV_IDEPCI && (BLK_DEV_AEC62XX || BLK_DEV_GENERIC || BLK_DEV_HPT34X || BLK_DEV_HPT366 || BLK_DEV_PDC202XX_NEW || BLK_DEV_PDC202XX_OLD || BLK_DEV_TC86C001)
 384         help
 385           Normally, IDE controllers built into the motherboard (on-board
 386           controllers) are assigned to ide0 and ide1 while those on add-in PCI
 387           cards (off-board controllers) are relegated to ide2 and ide3.
 388           Answering Y here will allow you to reverse the situation, with
 389           off-board controllers on ide0/1 and on-board controllers on ide2/3.
 390           This can improve the usability of some boot managers such as lilo
 391           when booting from a drive on an off-board controller.
 392
 393           If you say Y here, and you actually want to reverse the device scan
 394           order as explained above, you also need to issue the kernel command
 395           line option "ide=reverse". (Try "man bootparam" or see the
 396           documentation of your boot loader (lilo or loadlin) about how to
 397           pass options to the kernel at boot time.)
 398
 399           Note that, if you do this, the order of the hd* devices will be
 400           rearranged which may require modification of fstab and other files.
 401
 402           Please also note that this method of assuring stable naming of
 403           IDE devices is unreliable and use other means for achieving it
 404           (i.e. udev).
 405
 406           If in doubt, say N.
 407
 408 config BLK_DEV_GENERIC
 409         tristate "Generic PCI IDE Chipset Support"
 410         select BLK_DEV_IDEPCI
 411         help
 412           This option provides generic support for various PCI IDE Chipsets
 413           which otherwise might not be supported.
 414
 415 config BLK_DEV_OPTI621
 416         tristate "OPTi 82C621 chipset enhanced support (EXPERIMENTAL)"
 417         depends on EXPERIMENTAL
 418         select BLK_DEV_IDEPCI
 419         help
 420           This is a driver for the OPTi 82C621 EIDE controller.
 421           Please read the comments at the top of <file:drivers/ide/pci/opti621.c>.
 422
 423 config BLK_DEV_RZ1000
 424         tristate "RZ1000 chipset bugfix/support"
 425         depends on X86
 426         select BLK_DEV_IDEPCI
 427         help
 428           The PC-Technologies RZ1000 IDE chip is used on many common 486 and
 429           Pentium motherboards, usually along with the "Neptune" chipset.
 430           Unfortunately, it has a rather nasty design flaw that can cause
 431           severe data corruption under many conditions. Say Y here to include
 432           code which automatically detects and corrects the problem under
 433           Linux. This may slow disk throughput by a few percent, but at least
 434           things will operate 100% reliably.
 435
 436 config BLK_DEV_IDEDMA_PCI
 437         bool
 438         select BLK_DEV_IDEPCI
 439
 440 config BLK_DEV_AEC62XX
 441         tristate "AEC62XX chipset support"
 442         select BLK_DEV_IDEDMA_PCI
 443         help
 444           This driver adds explicit support for Acard AEC62xx (Artop ATP8xx)
 445           IDE controllers. This allows the kernel to change PIO, DMA and UDMA
 446           speeds and to configure the chip to optimum performance.
 447
 448 config BLK_DEV_ALI15X3
 449         tristate "ALI M15x3 chipset support"
 450         select BLK_DEV_IDEDMA_PCI
 451         help
 452           This driver ensures (U)DMA support for ALI 1533, 1543 and 1543C
 453           onboard chipsets.  It also tests for Simplex mode and enables
 454           normal dual channel support.
 455
 456           If you say Y here, you also need to say Y to "Use DMA by default
 457           when available", above.  Please read the comments at the top of
 458           <file:drivers/ide/pci/alim15x3.c>.
 459
 460           If unsure, say N.
 461
 462 config WDC_ALI15X3
 463         bool "ALI M15x3 WDC support (DANGEROUS)"
 464         depends on BLK_DEV_ALI15X3
 465         ---help---
 466           This allows for UltraDMA support for WDC drives that ignore CRC
 467           checking. You are a fool for enabling this option, but there have
 468           been requests. DO NOT COMPLAIN IF YOUR DRIVE HAS FS CORRUPTION, IF
 469           YOU ENABLE THIS! No one will listen, just laugh for ignoring this
 470           SERIOUS WARNING.
 471
 472           Using this option can allow WDC drives to run at ATA-4/5 transfer
 473           rates with only an ATA-2 support structure.
 474
 475           SAY N!
 476
 477 config BLK_DEV_AMD74XX
 478         tristate "AMD and nVidia IDE support"
 479         depends on !ARM
 480         select BLK_DEV_IDEDMA_PCI
 481         help
 482           This driver adds explicit support for AMD-7xx and AMD-8111 chips
 483           and also for the nVidia nForce chip.  This allows the kernel to
 484           change PIO, DMA and UDMA speeds and to configure the chip to
 485           optimum performance.
 486
 487 config BLK_DEV_ATIIXP
 488         tristate "ATI IXP chipset IDE support"
 489         depends on X86
 490         select BLK_DEV_IDEDMA_PCI
 491         help
 492           This driver adds explicit support for ATI IXP chipset.
 493           This allows the kernel to change PIO, DMA and UDMA speeds
 494           and to configure the chip to optimum performance.
 495
 496           Say Y here if you have an ATI IXP chipset IDE controller.
 497
 498 config BLK_DEV_CMD64X
 499         tristate "CMD64{3|6|8|9} chipset support"
 500         select BLK_DEV_IDEDMA_PCI
 501         help
 502           Say Y here if you have an IDE controller which uses any of these
 503           chipsets: CMD643, CMD646, or CMD648.
 504
 505 config BLK_DEV_TRIFLEX
 506         tristate "Compaq Triflex IDE support"
 507         select BLK_DEV_IDEDMA_PCI
 508         help
 509           Say Y here if you have a Compaq Triflex IDE controller, such
 510           as those commonly found on Compaq Pentium-Pro systems
 511
 512 config BLK_DEV_CY82C693
 513         tristate "CY82C693 chipset support"
 514         select BLK_DEV_IDEDMA_PCI
 515         help
 516           This driver adds detection and support for the CY82C693 chipset
 517           used on Digital's PC-Alpha 164SX boards.
 518
 519           If you say Y here, you need to say Y to "Use DMA by default
 520           when available" as well.
 521
 522 config BLK_DEV_CS5520
 523         tristate "Cyrix CS5510/20 MediaGX chipset support (VERY EXPERIMENTAL)"
 524         depends on EXPERIMENTAL
 525         select BLK_DEV_IDEDMA_PCI
 526         help
 527           Include support for PIO tuning and virtual DMA on the Cyrix MediaGX
 528           5510/5520 chipset. This will automatically be detected and
 529           configured if found.
 530
 531           It is safe to say Y to this question.
 532
 533 config BLK_DEV_CS5530
 534         tristate "Cyrix/National Semiconductor CS5530 MediaGX chipset support"
 535         select BLK_DEV_IDEDMA_PCI
 536         help
 537           Include support for UDMA on the Cyrix MediaGX 5530 chipset. This
 538           will automatically be detected and configured if found.
 539
 540           It is safe to say Y to this question.
 541
 542 config BLK_DEV_CS5535
 543         tristate "AMD CS5535 chipset support"
 544         depends on X86 && !X86_64
 545         select BLK_DEV_IDEDMA_PCI
 546         help
 547           Include support for UDMA on the NSC/AMD CS5535 companion chipset.
 548           This will automatically be detected and configured if found.
 549
 550           It is safe to say Y to this question.
 551
 552 config BLK_DEV_HPT34X
 553         tristate "HPT34X chipset support"
 554         select BLK_DEV_IDEDMA_PCI
 555         help
 556           This driver adds up to 4 more EIDE devices sharing a single
 557           interrupt. The HPT343 chipset in its current form is a non-bootable
 558           controller; the HPT345/HPT363 chipset is a bootable (needs BIOS FIX)
 559           PCI UDMA controllers. This driver requires dynamic tuning of the
 560           chipset during the ide-probe at boot time. It is reported to support
 561           DVD II drives, by the manufacturer.
 562
 563 config HPT34X_AUTODMA
 564         bool "HPT34X AUTODMA support (EXPERIMENTAL)"
 565         depends on BLK_DEV_HPT34X && EXPERIMENTAL
 566         help
 567           This is a dangerous thing to attempt currently! Please read the
 568           comments at the top of <file:drivers/ide/pci/hpt34x.c>.  If you say Y
 569           here, then say Y to "Use DMA by default when available" as well.
 570
 571           If unsure, say N.
 572
 573 config BLK_DEV_HPT366
 574         tristate "HPT36X/37X chipset support"
 575         select BLK_DEV_IDEDMA_PCI
 576         help
 577           HPT366 is an Ultra DMA chipset for ATA-66.
 578           HPT368 is an Ultra DMA chipset for ATA-66 RAID Based.
 579           HPT370 is an Ultra DMA chipset for ATA-100.
 580           HPT372 is an Ultra DMA chipset for ATA-100.
 581           HPT374 is an Ultra DMA chipset for ATA-100.
 582
 583           This driver adds up to 4 more EIDE devices sharing a single
 584           interrupt.
 585
 586           The HPT366 chipset in its current form is bootable. One solution
 587           for this problem are special LILO commands for redirecting the
 588           reference to device 0x80. The other solution is to say Y to "Boot
 589           off-board chipsets first support" (CONFIG_BLK_DEV_OFFBOARD) unless
 590           your mother board has the chipset natively mounted. Regardless one
 591           should use the fore mentioned option and call at LILO or include
 592           "ide=reverse" in LILO's append-line.
 593
 594           This driver requires dynamic tuning of the chipset during the
 595           ide-probe at boot. It is reported to support DVD II drives, by the
 596           manufacturer.
 597
 598 config BLK_DEV_JMICRON
 599         tristate "JMicron JMB36x support"
 600         select BLK_DEV_IDEDMA_PCI
 601         help
 602           Basic support for the JMicron ATA controllers. For full support
 603           use the libata drivers.
 604
 605 config BLK_DEV_SC1200
 606         tristate "National SCx200 chipset support"
 607         select BLK_DEV_IDEDMA_PCI
 608         help
 609           This driver adds support for the built in IDE on the National
 610           SCx200 series of embedded x86 "Geode" systems
 611
 612 config BLK_DEV_PIIX
 613         tristate "Intel PIIXn chipsets support"
 614         select BLK_DEV_IDEDMA_PCI
 615         help
 616           This driver adds explicit support for Intel PIIX and ICH chips
 617           and also for the Efar Victory66 (slc90e66) chip.  This allows
 618           the kernel to change PIO, DMA and UDMA speeds and to configure
 619           the chip to optimum performance.
 620
 621 config BLK_DEV_IT8213
 622         tristate "IT8213 IDE support"
 623         select BLK_DEV_IDEDMA_PCI
 624         help
 625          This driver adds support for the ITE 8213 IDE controller.
 626
 627 config BLK_DEV_IT821X
 628         tristate "IT821X IDE support"
 629         select BLK_DEV_IDEDMA_PCI
 630         help
 631           This driver adds support for the ITE 8211 IDE controller and the
 632           IT 8212 IDE RAID controller in both RAID and pass-through mode.
 633
 634 config BLK_DEV_NS87415
 635         tristate "NS87415 chipset support"
 636         select BLK_DEV_IDEDMA_PCI
 637         help
 638           This driver adds detection and support for the NS87415 chip
 639           (used mainly on SPARC64 and PA-RISC machines).
 640
 641           Please read the comments at the top of <file:drivers/ide/pci/ns87415.c>.
 642
 643 config BLK_DEV_PDC202XX_OLD
 644         tristate "PROMISE PDC202{46|62|65|67} support"
 645         select BLK_DEV_IDEDMA_PCI
 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
 668 config 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
 677           used successfully on a PDC20265/Ultra100, allowing use of UDMA modes
 678           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
 685 config BLK_DEV_PDC202XX_NEW
 686         tristate "PROMISE PDC202{68|69|70|71|75|76|77} support"
 687         select BLK_DEV_IDEDMA_PCI
 688
 689 config BLK_DEV_SVWKS
 690         tristate "ServerWorks OSB4/CSB5/CSB6 chipsets support"
 691         select BLK_DEV_IDEDMA_PCI
 692         help
 693           This driver adds PIO/(U)DMA support for the ServerWorks OSB4/CSB5
 694           chipsets.
 695
 696 config BLK_DEV_SGIIOC4
 697         tristate "Silicon Graphics IOC4 chipset ATA/ATAPI support"
 698         depends on (IA64_SGI_SN2 || IA64_GENERIC) && SGI_IOC4
 699         select BLK_DEV_IDEDMA_PCI
 700         help
 701           This driver adds PIO & MultiMode DMA-2 support for the SGI IOC4
 702           chipset, which has one channel and can support two devices.
 703           Please say Y here if you have an Altix System from SGI.
 704
 705 config BLK_DEV_SIIMAGE
 706         tristate "Silicon Image chipset support"
 707         select BLK_DEV_IDEDMA_PCI
 708         help
 709           This driver adds PIO/(U)DMA support for the SI CMD680 and SII
 710           3112 (Serial ATA) chips.
 711
 712 config BLK_DEV_SIS5513
 713         tristate "SiS5513 chipset support"
 714         depends on X86
 715         select BLK_DEV_IDEDMA_PCI
 716         help
 717           This driver ensures (U)DMA support for SIS5513 chipset family based
 718           mainboards.
 719
 720           The following chipsets are supported:
 721           ATA16:  SiS5511, SiS5513
 722           ATA33:  SiS5591, SiS5597, SiS5598, SiS5600
 723           ATA66:  SiS530, SiS540, SiS620, SiS630, SiS640
 724           ATA100: SiS635, SiS645, SiS650, SiS730, SiS735, SiS740,
 725           SiS745, SiS750
 726
 727           If you say Y here, you need to say Y to "Use DMA by default when
 728           available" as well.
 729
 730           Please read the comments at the top of <file:drivers/ide/pci/sis5513.c>.
 731
 732 config BLK_DEV_SL82C105
 733         tristate "Winbond SL82c105 support"
 734         depends on (PPC || ARM)
 735         select BLK_DEV_IDEDMA_PCI
 736         help
 737           If you have a Winbond SL82c105 IDE controller, say Y here to enable
 738           special configuration for this chip. This is common on various CHRP
 739           motherboards, but could be used elsewhere. If in doubt, say Y.
 740
 741 config BLK_DEV_SLC90E66
 742         tristate "SLC90E66 chipset support"
 743         select BLK_DEV_IDEDMA_PCI
 744         help
 745           This driver ensures (U)DMA support for Victory66 SouthBridges for
 746           SMsC with Intel NorthBridges.  This is an Ultra66 based chipset.
 747           The nice thing about it is that you can mix Ultra/DMA/PIO devices
 748           and it will handle timing cycles.  Since this is an improved
 749           look-a-like to the PIIX4 it should be a nice addition.
 750
 751           If you say Y here, you need to say Y to "Use DMA by default when
 752           available" as well.
 753
 754           Please read the comments at the top of
 755           <file:drivers/ide/pci/slc90e66.c>.
 756
 757 config BLK_DEV_TRM290
 758         tristate "Tekram TRM290 chipset support"
 759         select BLK_DEV_IDEDMA_PCI
 760         help
 761           This driver adds support for bus master DMA transfers
 762           using the Tekram TRM290 PCI IDE chip. Volunteers are
 763           needed for further tweaking and development.
 764           Please read the comments at the top of <file:drivers/ide/pci/trm290.c>.
 765
 766 config BLK_DEV_VIA82CXXX
 767         tristate "VIA82CXXX chipset support"
 768         select BLK_DEV_IDEDMA_PCI
 769         help
 770           This driver adds explicit support for VIA BusMastering IDE chips.
 771           This allows the kernel to change PIO, DMA and UDMA speeds and to
 772           configure the chip to optimum performance.
 773
 774 config BLK_DEV_TC86C001
 775         tristate "Toshiba TC86C001 support"
 776         select BLK_DEV_IDEDMA_PCI
 777         help
 778         This driver adds support for Toshiba TC86C001 GOKU-S chip.
 779
 780 config BLK_DEV_CELLEB
 781         tristate "Toshiba's Cell Reference Set IDE support"
 782         depends on PPC_CELLEB
 783         select BLK_DEV_IDEDMA_PCI
 784         help
 785           This driver provides support for the built-in IDE controller on
 786           Toshiba Cell Reference Board.
 787           If unsure, say Y.
 788
 789 endif
 790
 791 config BLK_DEV_IDE_PMAC
 792         bool "Builtin PowerMac IDE support"
 793         depends on PPC_PMAC && IDE=y && BLK_DEV_IDE=y
 794         help
 795           This driver provides support for the built-in IDE controller on
 796           most of the recent Apple Power Macintoshes and PowerBooks.
 797           If unsure, say Y.
 798
 799 config BLK_DEV_IDE_PMAC_ATA100FIRST
 800         bool "Probe internal ATA/100 (Kauai) first"
 801         depends on BLK_DEV_IDE_PMAC
 802         help
 803           This option will cause the ATA/100 controller found in UniNorth2
 804           based machines (Windtunnel PowerMac, Aluminium PowerBooks, ...)
 805           to be probed before the ATA/66 and ATA/33 controllers. Without
 806           these, those machine used to have the hard disk on hdc and the
 807           CD-ROM on hda. This option changes this to more natural hda for
 808           hard disk and hdc for CD-ROM.
 809
 810 config BLK_DEV_IDEDMA_PMAC
 811         bool "PowerMac IDE DMA support"
 812         depends on BLK_DEV_IDE_PMAC
 813         select BLK_DEV_IDEDMA_PCI
 814         help
 815           This option allows the driver for the built-in IDE controller on
 816           Power Macintoshes and PowerBooks to use DMA (direct memory access)
 817           to transfer data to and from memory.  Saying Y is safe and improves
 818           performance.
 819
 820 config BLK_DEV_IDE_SWARM
 821         tristate "IDE for Sibyte evaluation boards"
 822         depends on SIBYTE_SB1xxx_SOC
 823
 824 config BLK_DEV_IDE_AU1XXX
 825        bool "IDE for AMD Alchemy Au1200"
 826        depends on SOC_AU1200
 827 choice
 828        prompt "IDE Mode for AMD Alchemy Au1200"
 829        default CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA
 830        depends on SOC_AU1200 && BLK_DEV_IDE_AU1XXX
 831
 832 config BLK_DEV_IDE_AU1XXX_PIO_DBDMA
 833        bool "PIO+DbDMA IDE for AMD Alchemy Au1200"
 834
 835 config BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
 836        bool "MDMA2+DbDMA IDE for AMD Alchemy Au1200"
 837        depends on SOC_AU1200 && BLK_DEV_IDE_AU1XXX
 838 endchoice
 839
 840 config BLK_DEV_IDE_AU1XXX_SEQTS_PER_RQ
 841        int "Maximum transfer size (KB) per request (up to 128)"
 842        default "128"
 843        depends on BLK_DEV_IDE_AU1XXX
 844
 845 config IDE_ARM
 846         def_bool ARM && (ARCH_CLPS7500 || ARCH_RPC || ARCH_SHARK)
 847         select IDE_GENERIC
 848
 849 config BLK_DEV_IDE_ICSIDE
 850         tristate "ICS IDE interface support"
 851         depends on ARM && ARCH_ACORN
 852         help
 853           On Acorn systems, say Y here if you wish to use the ICS IDE
 854           interface card.  This is not required for ICS partition support.
 855           If you are unsure, say N to this.
 856
 857 config BLK_DEV_IDEDMA_ICS
 858         bool "ICS DMA support"
 859         depends on BLK_DEV_IDE_ICSIDE
 860         help
 861           Say Y here if you want to add DMA (Direct Memory Access) support to
 862           the ICS IDE driver.
 863
 864 config BLK_DEV_IDE_RAPIDE
 865         tristate "RapIDE interface support"
 866         depends on ARM && ARCH_ACORN
 867         help
 868           Say Y here if you want to support the Yellowstone RapIDE controller
 869           manufactured for use with Acorn computers.
 870
 871 config BLK_DEV_IDE_BAST
 872         tristate "Simtec BAST / Thorcom VR1000 IDE support"
 873         depends on ARM && (ARCH_BAST || MACH_VR1000)
 874         help
 875           Say Y here if you want to support the onboard IDE channels on the
 876           Simtec BAST or the Thorcom VR1000
 877
 878 config ETRAX_IDE
 879         bool "ETRAX IDE support"
 880         depends on CRIS && BROKEN
 881         select BLK_DEV_IDEDMA
 882         select IDE_GENERIC
 883         help
 884           Enables the ETRAX IDE driver.
 885
 886           You can't use parallel ports or SCSI ports at the same time.
 887
 888 config ETRAX_IDE_DELAY
 889         int "Delay for drives to regain consciousness"
 890         depends on ETRAX_IDE && ETRAX_ARCH_V10
 891         default 15
 892         help
 893           Number of seconds to wait for IDE drives to spin up after an IDE
 894           reset.
 895
 896 choice
 897         prompt "IDE reset pin"
 898         depends on ETRAX_IDE && ETRAX_ARCH_V10
 899         default ETRAX_IDE_PB7_RESET
 900
 901 config ETRAX_IDE_PB7_RESET
 902         bool "Port_PB_Bit_7"
 903         help
 904           IDE reset on pin 7 on port B
 905
 906 config ETRAX_IDE_G27_RESET
 907         bool "Port_G_Bit_27"
 908         help
 909           IDE reset on pin 27 on port G
 910
 911 endchoice
 912
 913 config IDE_H8300
 914         bool "H8300 IDE support"
 915         depends on H8300
 916         select IDE_GENERIC
 917         default y
 918         help
 919           Enables the H8300 IDE driver.
 920
 921 config BLK_DEV_GAYLE
 922         bool "Amiga Gayle IDE interface support"
 923         depends on AMIGA
 924         select IDE_GENERIC
 925         help
 926           This is the IDE driver for the Amiga Gayle IDE interface. It supports
 927           both the `A1200 style' and `A4000 style' of the Gayle IDE interface,
 928           This includes builtin IDE interfaces on some Amiga models (A600,
 929           A1200, A4000, and A4000T), and IDE interfaces on the Zorro expansion
 930           bus (M-Tech E-Matrix 530 expansion card).
 931           Say Y if you have an Amiga with a Gayle IDE interface and want to use
 932           IDE devices (hard disks, CD-ROM drives, etc.) that are connected to
 933           it.
 934           Note that you also have to enable Zorro bus support if you want to
 935           use Gayle IDE interfaces on the Zorro expansion bus.
 936
 937 config BLK_DEV_IDEDOUBLER
 938         bool "Amiga IDE Doubler support (EXPERIMENTAL)"
 939         depends on BLK_DEV_GAYLE && EXPERIMENTAL
 940         ---help---
 941           This driver provides support for the so-called `IDE doublers' (made
 942           by various manufacturers, e.g. Eyetech) that can be connected to the
 943           builtin IDE interface of some Amiga models. Using such an IDE
 944           doubler, you can connect up to four instead of two IDE devices on
 945           the Amiga's builtin IDE interface.
 946
 947           Note that the normal Amiga Gayle IDE driver may not work correctly
 948           if you have an IDE doubler and don't enable this driver!
 949
 950           Say Y if you have an IDE doubler.  The driver is enabled at kernel
 951           runtime using the "ide=doubler" kernel boot parameter.
 952
 953 config BLK_DEV_BUDDHA
 954         bool "Buddha/Catweasel/X-Surf IDE interface support (EXPERIMENTAL)"
 955         depends on ZORRO && EXPERIMENTAL
 956         select IDE_GENERIC
 957         help
 958           This is the IDE driver for the IDE interfaces on the Buddha,
 959           Catweasel and X-Surf expansion boards.  It supports up to two interfaces
 960           on the Buddha, three on the Catweasel and two on the X-Surf.
 961
 962           Say Y if you have a Buddha or Catweasel expansion board and want to
 963           use IDE devices (hard disks, CD-ROM drives, etc.) that are connected
 964           to one of its IDE interfaces.
 965
 966 config BLK_DEV_FALCON_IDE
 967         bool "Falcon IDE interface support"
 968         depends on ATARI
 969         select IDE_GENERIC
 970         help
 971           This is the IDE driver for the builtin IDE interface on the Atari
 972           Falcon. Say Y if you have a Falcon and want to use IDE devices (hard
 973           disks, CD-ROM drives, etc.) that are connected to the builtin IDE
 974           interface.
 975
 976 config BLK_DEV_MAC_IDE
 977         bool "Macintosh Quadra/Powerbook IDE interface support"
 978         depends on MAC
 979         select IDE_GENERIC
 980         help
 981           This is the IDE driver for the builtin IDE interface on some m68k
 982           Macintosh models. It supports both the `Quadra style' (used in
 983           Quadra/ Centris 630 and Performa 588 models) and `Powerbook style'
 984           (used in the Powerbook 150 and 190 models) IDE interface.
 985
 986           Say Y if you have such an Macintosh model and want to use IDE
 987           devices (hard disks, CD-ROM drives, etc.) that are connected to the
 988           builtin IDE interface.
 989
 990 config BLK_DEV_Q40IDE
 991         bool "Q40/Q60 IDE interface support"
 992         depends on Q40
 993         select IDE_GENERIC
 994         help
 995           Enable the on-board IDE controller in the Q40/Q60.  This should
 996           normally be on; disable it only if you are running a custom hard
 997           drive subsystem through an expansion card.
 998
 999 config BLK_DEV_MPC8xx_IDE
1000         bool "MPC8xx IDE support"
1001         depends on 8xx && (LWMON || IVMS8 || IVML24 || TQM8xxL) && IDE=y && BLK_DEV_IDE=y && !PPC_MERGE
1002         select IDE_GENERIC
1003         help
1004           This option provides support for IDE on Motorola MPC8xx Systems.
1005           Please see 'Type of MPC8xx IDE interface' for details.
1006
1007           If unsure, say N.
1008
1009 choice
1010         prompt "Type of MPC8xx IDE interface"
1011         depends on BLK_DEV_MPC8xx_IDE
1012         default IDE_8xx_PCCARD
1013
1014 config IDE_8xx_PCCARD
1015         bool "8xx_PCCARD"
1016         ---help---
1017           Select how the IDE devices are connected to the MPC8xx system:
1018
1019           8xx_PCCARD uses the 8xx internal PCMCIA interface in combination
1020           with a PC Card (e.g. ARGOSY portable Hard Disk Adapter),
1021           ATA PC Card HDDs or ATA PC Flash Cards (example: TQM8xxL
1022           systems)
1023
1024           8xx_DIRECT is used for directly connected IDE devices using the 8xx
1025           internal PCMCIA interface (example: IVMS8 systems)
1026
1027           EXT_DIRECT is used for IDE devices directly connected to the 8xx
1028           bus using some glue logic, but _not_ the 8xx internal
1029           PCMCIA interface (example: IDIF860 systems)
1030
1031 config IDE_8xx_DIRECT
1032         bool "8xx_DIRECT"
1033
1034 config IDE_EXT_DIRECT
1035         bool "EXT_DIRECT"
1036
1037 endchoice
1038
1039 # no isa -> no vlb
1040 if ISA
1041
1042 comment "Other IDE chipsets support"
1043 comment "Note: most of these also require special kernel boot parameters"
1044
1045 config BLK_DEV_4DRIVES
1046         bool "Generic 4 drives/port support"
1047         help
1048           Certain older chipsets, including the Tekram 690CD, use a single set
1049           of I/O ports at 0x1f0 to control up to four drives, instead of the
1050           customary two drives per port. Support for this can be enabled at
1051           runtime using the "ide0=four" kernel boot parameter if you say Y
1052           here.
1053
1054 config BLK_DEV_ALI14XX
1055         tristate "ALI M14xx support"
1056         help
1057           This driver is enabled at runtime using the "ali14xx.probe" kernel
1058           boot parameter.  It enables support for the secondary IDE interface
1059           of the ALI M1439/1443/1445/1487/1489 chipsets, and permits faster
1060           I/O speeds to be set as well.  See the files
1061           <file:Documentation/ide.txt> and <file:drivers/ide/legacy/ali14xx.c> for
1062           more info.
1063
1064 config BLK_DEV_DTC2278
1065         tristate "DTC-2278 support"
1066         help
1067           This driver is enabled at runtime using the "dtc2278.probe" kernel
1068           boot parameter. It enables support for the secondary IDE interface
1069           of the DTC-2278 card, and permits faster I/O speeds to be set as
1070           well. See the <file:Documentation/ide.txt> and
1071           <file:drivers/ide/legacy/dtc2278.c> files for more info.
1072
1073 config BLK_DEV_HT6560B
1074         tristate "Holtek HT6560B support"
1075         help
1076           This driver is enabled at runtime using the "ht6560b.probe" kernel
1077           boot parameter. It enables support for the secondary IDE interface
1078           of the Holtek card, and permits faster I/O speeds to be set as well.
1079           See the <file:Documentation/ide.txt> and
1080           <file:drivers/ide/legacy/ht6560b.c> files for more info.
1081
1082 config BLK_DEV_QD65XX
1083         tristate "QDI QD65xx support"
1084         help
1085           This driver is enabled at runtime using the "qd65xx.probe" kernel
1086           boot parameter.  It permits faster I/O speeds to be set.  See the
1087           <file:Documentation/ide.txt> and <file:drivers/ide/legacy/qd65xx.c> for
1088           more info.
1089
1090 config BLK_DEV_UMC8672
1091         tristate "UMC-8672 support"
1092         help
1093           This driver is enabled at runtime using the "umc8672.probe" kernel
1094           boot parameter. It enables support for the secondary IDE interface
1095           of the UMC-8672, and permits faster I/O speeds to be set as well.
1096           See the files <file:Documentation/ide.txt> and
1097           <file:drivers/ide/legacy/umc8672.c> for more info.
1098
1099 endif
1100
1101 config BLK_DEV_IDEDMA
1102         def_bool BLK_DEV_IDEDMA_PCI || BLK_DEV_IDEDMA_PMAC || BLK_DEV_IDEDMA_ICS || BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA
1103
1104 config IDE_ARCH_OBSOLETE_INIT
1105         def_bool ALPHA || (ARM && !ARCH_L7200) || BLACKFIN || X86 || IA64 || M32R || MIPS || PARISC || PPC || (SUPERH64 && BLK_DEV_IDEPCI) || SPARC
1106
1107 endif
1108
1109 config BLK_DEV_HD_ONLY
1110         bool "Old hard disk (MFM/RLL/IDE) driver"
1111         depends on BLK_DEV_IDE=n
1112         help
1113           There are two drivers for MFM/RLL/IDE hard disks. Most people use
1114           the newer enhanced driver, but this old one is still around for two
1115           reasons. Some older systems have strange timing problems and seem to
1116           work only with the old driver (which itself does not work with some
1117           newer systems). The other reason is that the old driver is smaller,
1118           since it lacks the enhanced functionality of the new one. This makes
1119           it a good choice for systems with very tight memory restrictions, or
1120           for systems with only older MFM/RLL/ESDI drives. Choosing the old
1121           driver can save 13 KB or so of kernel memory.
1122
1123           If you are unsure, then just choose the Enhanced IDE/MFM/RLL driver
1124           instead of this one. For more detailed information, read the
1125           Disk-HOWTO, available from
1126           <http://www.tldp.org/docs.html#howto>.
1127
1128 config BLK_DEV_HD
1129         def_bool BLK_DEV_HD_IDE || BLK_DEV_HD_ONLY
1130
1131 endif # IDE