drivers/char/watchdog/Kconfig

   1 #
   2 # Watchdog device configuration
   3 #
   4
   5 menu "Watchdog Cards"
   6
   7 config WATCHDOG
   8         bool "Watchdog Timer Support"
   9         ---help---
  10           If you say Y here (and to one of the following options) and create a
  11           character special file /dev/watchdog with major number 10 and minor
  12           number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:
  13           subsequently opening the file and then failing to write to it for
  14           longer than 1 minute will result in rebooting the machine. This
  15           could be useful for a networked machine that needs to come back
  16           online as fast as possible after a lock-up. There's both a watchdog
  17           implementation entirely in software (which can sometimes fail to
  18           reboot the machine) and a driver for hardware watchdog boards, which
  19           are more robust and can also keep track of the temperature inside
  20           your computer. For details, read <file:Documentation/watchdog/watchdog.txt>
  21           in the kernel source.
  22
  23           The watchdog is usually used together with the watchdog daemon
  24           which is available from
  25           <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can
  26           also monitor NFS connections and can reboot the machine when the process
  27           table is full.
  28
  29           If unsure, say N.
  30
  31 config WATCHDOG_NOWAYOUT
  32         bool "Disable watchdog shutdown on close"
  33         depends on WATCHDOG
  34         help
  35           The default watchdog behaviour (which you get if you say N here) is
  36           to stop the timer if the process managing it closes the file
  37           /dev/watchdog. It's always remotely possible that this process might
  38           get killed. If you say Y here, the watchdog cannot be stopped once
  39           it has been started.
  40
  41 #
  42 # General Watchdog drivers
  43 #
  44
  45 comment "Watchdog Device Drivers"
  46         depends on WATCHDOG
  47
  48 # Architecture Independant
  49
  50 config SOFT_WATCHDOG
  51         tristate "Software watchdog"
  52         depends on WATCHDOG
  53         help
  54           A software monitoring watchdog. This will fail to reboot your system
  55           from some situations that the hardware watchdog will recover
  56           from. Equally it's a lot cheaper to install.
  57
  58           To compile this driver as a module, choose M here: the
  59           module will be called softdog.
  60
  61 # ARM Architecture
  62
  63 config 21285_WATCHDOG
  64         tristate "DC21285 watchdog"
  65         depends on WATCHDOG && FOOTBRIDGE
  66         help
  67           The Intel Footbridge chip contains a builtin watchdog circuit. Say Y
  68           here if you wish to use this. Alternatively say M to compile the
  69           driver as a module, which will be called wdt285.
  70
  71           This driver does not work on all machines. In particular, early CATS
  72           boards have hardware problems that will cause the machine to simply
  73           lock up if the watchdog fires.
  74
  75           "If in doubt, leave it out" - say N.
  76
  77 config 977_WATCHDOG
  78         tristate "NetWinder WB83C977 watchdog"
  79         depends on WATCHDOG && FOOTBRIDGE && ARCH_NETWINDER
  80         help
  81           Say Y here to include support for the WB977 watchdog included in
  82           NetWinder machines. Alternatively say M to compile the driver as
  83           a module, which will be called wdt977.
  84
  85           Not sure? It's safe to say N.
  86
  87 config IXP2000_WATCHDOG
  88         tristate "IXP2000 Watchdog"
  89         depends on WATCHDOG && ARCH_IXP2000
  90         help
  91           Say Y here if to include support for the watchdog timer
  92           in the Intel IXP2000(2400, 2800, 2850) network processors.
  93           This driver can be built as a module by choosing M. The module
  94           will be called ixp2000_wdt.
  95
  96           Say N if you are unsure.
  97
  98 config IXP4XX_WATCHDOG
  99         tristate "IXP4xx Watchdog"
 100         depends on WATCHDOG && ARCH_IXP4XX
 101         help
 102           Say Y here if to include support for the watchdog timer
 103           in the Intel IXP4xx network processors. This driver can
 104           be built as a module by choosing M. The module will
 105           be called ixp4xx_wdt.
 106
 107           Note: The internal IXP4xx watchdog does a soft CPU reset
 108           which doesn't reset any peripherals. There are circumstances
 109           where the watchdog will fail to reset the board correctly
 110           (e.g., if the boot ROM is in an unreadable state).
 111
 112           Say N if you are unsure.
 113
 114 config S3C2410_WATCHDOG
 115         tristate "S3C2410 Watchdog"
 116         depends on WATCHDOG && ARCH_S3C2410
 117         help
 118           Watchdog timer block in the Samsung S3C2410 chips. This will
 119           reboot the system when the timer expires with the watchdog
 120           enabled.
 121
 122           The driver is limited by the speed of the system's PCLK
 123           signal, so with reasonbaly fast systems (PCLK around 50-66MHz)
 124           then watchdog intervals of over approximately 20seconds are
 125           unavailable.
 126
 127           The driver can be built as a module by choosing M, and will
 128           be called s3c2410_wdt
 129
 130 config SA1100_WATCHDOG
 131         tristate "SA1100/PXA2xx watchdog"
 132         depends on WATCHDOG && ( ARCH_SA1100 || ARCH_PXA )
 133         help
 134           Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
 135           reboot your system when timeout is reached.
 136
 137           NOTE: once enabled, this timer cannot be disabled.
 138
 139           To compile this driver as a module, choose M here: the
 140           module will be called sa1100_wdt.
 141
 142 config MPCORE_WATCHDOG
 143         tristate "MPcore watchdog"
 144         depends on WATCHDOG && ARM_MPCORE_PLATFORM && LOCAL_TIMERS
 145         help
 146           Watchdog timer embedded into the MPcore system.
 147
 148           To compile this driver as a module, choose M here: the
 149           module will be called mpcore_wdt.
 150
 151 # X86 (i386 + ia64 + x86_64) Architecture
 152
 153 config ACQUIRE_WDT
 154         tristate "Acquire SBC Watchdog Timer"
 155         depends on WATCHDOG && X86
 156         ---help---
 157           This is the driver for the hardware watchdog on Single Board
 158           Computers produced by Acquire Inc (and others). This watchdog
 159           simply watches your kernel to make sure it doesn't freeze, and if
 160           it does, it reboots your computer after a certain amount of time.
 161
 162           To compile this driver as a module, choose M here: the
 163           module will be called acquirewdt.
 164
 165           Most people will say N.
 166
 167 config ADVANTECH_WDT
 168         tristate "Advantech SBC Watchdog Timer"
 169         depends on WATCHDOG && X86
 170         help
 171           If you are configuring a Linux kernel for the Advantech single-board
 172           computer, say `Y' here to support its built-in watchdog timer
 173           feature. More information can be found at
 174           <http://www.advantech.com.tw/products/>
 175
 176 config ALIM1535_WDT
 177         tristate "ALi M1535 PMU Watchdog Timer"
 178         depends on WATCHDOG && X86 && PCI
 179         ---help---
 180           This is the driver for the hardware watchdog on the ALi M1535 PMU.
 181
 182           To compile this driver as a module, choose M here: the
 183           module will be called alim1535_wdt.
 184
 185           Most people will say N.
 186
 187 config ALIM7101_WDT
 188         tristate "ALi M7101 PMU Computer Watchdog"
 189         depends on WATCHDOG && X86 && PCI
 190         help
 191           This is the driver for the hardware watchdog on the ALi M7101 PMU
 192           as used in the x86 Cobalt servers.
 193
 194           To compile this driver as a module, choose M here: the
 195           module will be called alim7101_wdt.
 196
 197           Most people will say N.
 198
 199 config SC520_WDT
 200         tristate "AMD Elan SC520 processor Watchdog"
 201         depends on WATCHDOG && X86
 202         help
 203           This is the driver for the hardware watchdog built in to the
 204           AMD "Elan" SC520 microcomputer commonly used in embedded systems.
 205           This watchdog simply watches your kernel to make sure it doesn't
 206           freeze, and if it does, it reboots your computer after a certain
 207           amount of time.
 208
 209           You can compile this driver directly into the kernel, or use
 210           it as a module.  The module will be called sc520_wdt.
 211
 212 config EUROTECH_WDT
 213         tristate "Eurotech CPU-1220/1410 Watchdog Timer"
 214         depends on WATCHDOG && X86
 215         help
 216           Enable support for the watchdog timer on the Eurotech CPU-1220 and
 217           CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
 218           information are at <http://www.eurotech.it/>.
 219
 220 config IB700_WDT
 221         tristate "IB700 SBC Watchdog Timer"
 222         depends on WATCHDOG && X86
 223         ---help---
 224           This is the driver for the hardware watchdog on the IB700 Single
 225           Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
 226           simply watches your kernel to make sure it doesn't freeze, and if
 227           it does, it reboots your computer after a certain amount of time.
 228
 229           This driver is like the WDT501 driver but for slightly different hardware.
 230
 231           To compile this driver as a module, choose M here: the
 232           module will be called ib700wdt.
 233
 234           Most people will say N.
 235
 236 config IBMASR
 237         tristate "IBM Automatic Server Restart"
 238         depends on WATCHDOG && X86
 239         help
 240           This is the driver for the IBM Automatic Server Restart watchdog
 241           timer builtin into some eServer xSeries machines.
 242
 243           To compile this driver as a module, choose M here: the
 244           module will be called ibmasr.
 245
 246 config WAFER_WDT
 247         tristate "ICP Wafer 5823 Single Board Computer Watchdog"
 248         depends on WATCHDOG && X86
 249         help
 250           This is a driver for the hardware watchdog on the ICP Wafer 5823
 251           Single Board Computer (and probably other similar models).
 252
 253           To compile this driver as a module, choose M here: the
 254           module will be called wafer5823wdt.
 255
 256 config I6300ESB_WDT
 257         tristate "Intel 6300ESB Timer/Watchdog"
 258         depends on WATCHDOG && X86 && PCI
 259         ---help---
 260           Hardware driver for the watchdog timer built into the Intel
 261           6300ESB controller hub.
 262
 263           To compile this driver as a module, choose M here: the
 264           module will be called i6300esb.
 265
 266 config I8XX_TCO
 267         tristate "Intel i8xx TCO Timer/Watchdog"
 268         depends on WATCHDOG && (X86 || IA64) && PCI
 269         ---help---
 270           Hardware driver for the TCO timer built into the Intel 82801
 271           I/O Controller Hub family.  The TCO (Total Cost of Ownership)
 272           timer is a watchdog timer that will reboot the machine after
 273           its second expiration. The expiration time can be configured
 274           with the "heartbeat" parameter.
 275
 276           On some motherboards the driver may fail to reset the chipset's
 277           NO_REBOOT flag which prevents the watchdog from rebooting the
 278           machine. If this is the case you will get a kernel message like
 279           "failed to reset NO_REBOOT flag, reboot disabled by hardware".
 280
 281           To compile this driver as a module, choose M here: the
 282           module will be called i8xx_tco.
 283
 284 config SC1200_WDT
 285         tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
 286         depends on WATCHDOG && X86
 287         help
 288           This is a driver for National Semiconductor PC87307/PC97307 hardware
 289           watchdog cards as found on the SC1200. This watchdog is mainly used
 290           for power management purposes and can be used to power down the device
 291           during inactivity periods (includes interrupt activity monitoring).
 292
 293           To compile this driver as a module, choose M here: the
 294           module will be called sc1200wdt.
 295
 296           Most people will say N.
 297
 298 config SCx200_WDT
 299         tristate "National Semiconductor SCx200 Watchdog"
 300         depends on WATCHDOG && SCx200 && PCI
 301         help
 302           Enable the built-in watchdog timer support on the National
 303           Semiconductor SCx200 processors.
 304
 305           If compiled as a module, it will be called scx200_wdt.
 306
 307 config 60XX_WDT
 308         tristate "SBC-60XX Watchdog Timer"
 309         depends on WATCHDOG && X86
 310         help
 311           This driver can be used with the watchdog timer found on some
 312           single board computers, namely the 6010 PII based computer.
 313           It may well work with other cards.  It reads port 0x443 to enable
 314           and re-set the watchdog timer, and reads port 0x45 to disable
 315           the watchdog.  If you have a card that behave in similar ways,
 316           you can probably make this driver work with your card as well.
 317
 318           You can compile this driver directly into the kernel, or use
 319           it as a module.  The module will be called sbc60xxwdt.
 320
 321 config SBC8360_WDT
 322         tristate "SBC8360 Watchdog Timer"
 323         depends on WATCHDOG && X86
 324         ---help---
 325
 326           This is the driver for the hardware watchdog on the SBC8360 Single
 327           Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
 328
 329           To compile this driver as a module, choose M here: the
 330           module will be called sbc8360.ko.
 331
 332           Most people will say N.
 333
 334 config CPU5_WDT
 335         tristate "SMA CPU5 Watchdog"
 336         depends on WATCHDOG && X86
 337         ---help---
 338           TBD.
 339           To compile this driver as a module, choose M here: the
 340           module will be called cpu5wdt.
 341
 342 config W83627HF_WDT
 343         tristate "W83627HF Watchdog Timer"
 344         depends on WATCHDOG && X86
 345         ---help---
 346           This is the driver for the hardware watchdog on the W83627HF chipset
 347           as used in Advantech PC-9578 and Tyan S2721-533 motherboards
 348           (and likely others).  This watchdog simply watches your kernel to
 349           make sure it doesn't freeze, and if it does, it reboots your computer
 350           after a certain amount of time.
 351
 352           To compile this driver as a module, choose M here: the
 353           module will be called w83627hf_wdt.
 354
 355           Most people will say N.
 356
 357 config W83877F_WDT
 358         tristate "W83877F (EMACS) Watchdog Timer"
 359         depends on WATCHDOG && X86
 360         ---help---
 361           This is the driver for the hardware watchdog on the W83877F chipset
 362           as used in EMACS PC-104 motherboards (and likely others).  This
 363           watchdog simply watches your kernel to make sure it doesn't freeze,
 364           and if it does, it reboots your computer after a certain amount of
 365           time.
 366
 367           To compile this driver as a module, choose M here: the
 368           module will be called w83877f_wdt.
 369
 370           Most people will say N.
 371
 372 config W83977F_WDT
 373         tristate "W83977F (PCM-5335) Watchdog Timer"
 374         depends on WATCHDOG && X86
 375         ---help---
 376           This is the driver for the hardware watchdog on the W83977F I/O chip
 377           as used in AAEON's PCM-5335 SBC (and likely others).  This
 378           watchdog simply watches your kernel to make sure it doesn't freeze,
 379           and if it does, it reboots your computer after a certain amount of
 380           time.
 381
 382           To compile this driver as a module, choose M here: the
 383           module will be called w83977f_wdt.
 384
 385 config MACHZ_WDT
 386         tristate "ZF MachZ Watchdog"
 387         depends on WATCHDOG && X86
 388         ---help---
 389           If you are using a ZF Micro MachZ processor, say Y here, otherwise
 390           N.  This is the driver for the watchdog timer builtin on that
 391           processor using ZF-Logic interface.  This watchdog simply watches
 392           your kernel to make sure it doesn't freeze, and if it does, it
 393           reboots your computer after a certain amount of time.
 394
 395           To compile this driver as a module, choose M here: the
 396           module will be called machzwd.
 397
 398 # PowerPC Architecture
 399
 400 config 8xx_WDT
 401         tristate "MPC8xx Watchdog Timer"
 402         depends on WATCHDOG && 8xx
 403
 404 config MV64X60_WDT
 405         tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
 406         depends on WATCHDOG && MV64X60
 407
 408 config BOOKE_WDT
 409         tristate "PowerPC Book-E Watchdog Timer"
 410         depends on WATCHDOG && (BOOKE || 4xx)
 411         ---help---
 412           Please see Documentation/watchdog/watchdog-api.txt for
 413           more information.
 414
 415 # PPC64 Architecture
 416
 417 config WATCHDOG_RTAS
 418         tristate "RTAS watchdog"
 419         depends on WATCHDOG && PPC_RTAS
 420         help
 421           This driver adds watchdog support for the RTAS watchdog.
 422
 423           To compile this driver as a module, choose M here. The module
 424           will be called wdrtas.
 425
 426 # MIPS Architecture
 427
 428 config INDYDOG
 429         tristate "Indy/I2 Hardware Watchdog"
 430         depends on WATCHDOG && SGI_IP22
 431         help
 432           Hardwaredriver for the Indy's/I2's watchdog. This is a
 433           watchdog timer that will reboot the machine after a 60 second
 434           timer expired and no process has written to /dev/watchdog during
 435           that time.
 436
 437 # S390 Architecture
 438
 439 config ZVM_WATCHDOG
 440         tristate "z/VM Watchdog Timer"
 441         depends on WATCHDOG && ARCH_S390
 442         help
 443           IBM s/390 and zSeries machines running under z/VM 5.1 or later
 444           provide a virtual watchdog timer to their guest that cause a
 445           user define Control Program command to be executed after a
 446           timeout.
 447
 448           To compile this driver as a module, choose M here. The module
 449           will be called vmwatchdog.
 450
 451 # SUPERH Architecture
 452
 453 config SH_WDT
 454         tristate "SuperH Watchdog"
 455         depends on WATCHDOG && SUPERH
 456         help
 457           This driver adds watchdog support for the integrated watchdog in the
 458           SuperH processors. If you have one of these processors and wish
 459           to have watchdog support enabled, say Y, otherwise say N.
 460
 461           As a side note, saying Y here will automatically boost HZ to 1000
 462           so that the timer has a chance to clear the overflow counter. On
 463           slower systems (such as the SH-2 and SH-3) this will likely yield
 464           some performance issues. As such, the WDT should be avoided here
 465           unless it is absolutely necessary.
 466
 467           To compile this driver as a module, choose M here: the
 468           module will be called shwdt.
 469
 470 # SPARC64 Architecture
 471
 472 config WATCHDOG_CP1XXX
 473         tristate "CP1XXX Hardware Watchdog support"
 474         depends on WATCHDOG && SPARC64 && PCI
 475         ---help---
 476           This is the driver for the hardware watchdog timers present on
 477           Sun Microsystems CompactPCI models CP1400 and CP1500.
 478
 479           To compile this driver as a module, choose M here: the
 480           module will be called cpwatchdog.
 481
 482           If you do not have a CompactPCI model CP1400 or CP1500, or
 483           another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
 484           you should say N to this option.
 485
 486 config WATCHDOG_RIO
 487         tristate "RIO Hardware Watchdog support"
 488         depends on WATCHDOG && SPARC64 && PCI
 489         help
 490           Say Y here to support the hardware watchdog capability on Sun RIO
 491           machines.  The watchdog timeout period is normally one minute but
 492           can be changed with a boot-time parameter.
 493
 494 #
 495 # ISA-based Watchdog Cards
 496 #
 497
 498 comment "ISA-based Watchdog Cards"
 499         depends on WATCHDOG && ISA
 500
 501 config PCWATCHDOG
 502         tristate "Berkshire Products ISA-PC Watchdog"
 503         depends on WATCHDOG && ISA
 504         ---help---
 505           This is the driver for the Berkshire Products ISA-PC Watchdog card.
 506           This card simply watches your kernel to make sure it doesn't freeze,
 507           and if it does, it reboots your computer after a certain amount of
 508           time. This driver is like the WDT501 driver but for different
 509           hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
 510           watchdog cards can be ordered from <http://www.berkprod.com/>.
 511
 512           To compile this driver as a module, choose M here: the
 513           module will be called pcwd.
 514
 515           Most people will say N.
 516
 517 config MIXCOMWD
 518         tristate "Mixcom Watchdog"
 519         depends on WATCHDOG && ISA
 520         ---help---
 521           This is a driver for the Mixcom hardware watchdog cards.  This
 522           watchdog simply watches your kernel to make sure it doesn't freeze,
 523           and if it does, it reboots your computer after a certain amount of
 524           time.
 525
 526           To compile this driver as a module, choose M here: the
 527           module will be called mixcomwd.
 528
 529           Most people will say N.
 530
 531 config WDT
 532         tristate "WDT Watchdog timer"
 533         depends on WATCHDOG && ISA
 534         ---help---
 535           If you have a WDT500P or WDT501P watchdog board, say Y here,
 536           otherwise N. It is not possible to probe for this board, which means
 537           that you have to inform the kernel about the IO port and IRQ that
 538           is needed (you can do this via the io and irq parameters)
 539
 540           To compile this driver as a module, choose M here: the
 541           module will be called wdt.
 542
 543 config WDT_501
 544         bool "WDT501 features"
 545         depends on WDT
 546         help
 547           Saying Y here and creating a character special file /dev/temperature
 548           with major number 10 and minor number 131 ("man mknod") will give
 549           you a thermometer inside your computer: reading from
 550           /dev/temperature yields one byte, the temperature in degrees
 551           Fahrenheit. This works only if you have a WDT501P watchdog board
 552           installed.
 553
 554           If you want to enable the Fan Tachometer on the WDT501P, then you
 555           can do this via the tachometer parameter. Only do this if you have a
 556           fan tachometer actually set up.
 557
 558 #
 559 # PCI-based Watchdog Cards
 560 #
 561
 562 comment "PCI-based Watchdog Cards"
 563         depends on WATCHDOG && PCI
 564
 565 config PCIPCWATCHDOG
 566         tristate "Berkshire Products PCI-PC Watchdog"
 567         depends on WATCHDOG && PCI
 568         ---help---
 569           This is the driver for the Berkshire Products PCI-PC Watchdog card.
 570           This card simply watches your kernel to make sure it doesn't freeze,
 571           and if it does, it reboots your computer after a certain amount of
 572           time. The card can also monitor the internal temperature of the PC.
 573           More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
 574
 575           To compile this driver as a module, choose M here: the
 576           module will be called pcwd_pci.
 577
 578           Most people will say N.
 579
 580 config WDTPCI
 581         tristate "PCI-WDT500/501 Watchdog timer"
 582         depends on WATCHDOG && PCI
 583         ---help---
 584           If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
 585
 586           To compile this driver as a module, choose M here: the
 587           module will be called wdt_pci.
 588
 589 config WDT_501_PCI
 590         bool "PCI-WDT501 features"
 591         depends on WDTPCI
 592         help
 593           Saying Y here and creating a character special file /dev/temperature
 594           with major number 10 and minor number 131 ("man mknod") will give
 595           you a thermometer inside your computer: reading from
 596           /dev/temperature yields one byte, the temperature in degrees
 597           Fahrenheit. This works only if you have a PCI-WDT501 watchdog board
 598           installed.
 599
 600           If you want to enable the Fan Tachometer on the PCI-WDT501, then you
 601           can do this via the tachometer parameter. Only do this if you have a
 602           fan tachometer actually set up.
 603
 604 #
 605 # USB-based Watchdog Cards
 606 #
 607
 608 comment "USB-based Watchdog Cards"
 609         depends on WATCHDOG && USB
 610
 611 config USBPCWATCHDOG
 612         tristate "Berkshire Products USB-PC Watchdog"
 613         depends on WATCHDOG && USB
 614         ---help---
 615           This is the driver for the Berkshire Products USB-PC Watchdog card.
 616           This card simply watches your kernel to make sure it doesn't freeze,
 617           and if it does, it reboots your computer after a certain amount of
 618           time. The card can also monitor the internal temperature of the PC.
 619           More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
 620
 621           To compile this driver as a module, choose M here: the
 622           module will be called pcwd_usb.
 623
 624           Most people will say N.
 625
 626 endmenu