drivers/watchdog/Kconfig

   1 #
   2 # Watchdog device configuration
   3 #
   4
   5 menuconfig WATCHDOG
   6         bool "Watchdog Timer Support"
   7         ---help---
   8           If you say Y here (and to one of the following options) and create a
   9           character special file /dev/watchdog with major number 10 and minor
  10           number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:
  11           subsequently opening the file and then failing to write to it for
  12           longer than 1 minute will result in rebooting the machine. This
  13           could be useful for a networked machine that needs to come back
  14           on-line as fast as possible after a lock-up. There's both a watchdog
  15           implementation entirely in software (which can sometimes fail to
  16           reboot the machine) and a driver for hardware watchdog boards, which
  17           are more robust and can also keep track of the temperature inside
  18           your computer. For details, read
  19           <file:Documentation/watchdog/watchdog-api.txt> in the kernel source.
  20
  21           The watchdog is usually used together with the watchdog daemon
  22           which is available from
  23           <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can
  24           also monitor NFS connections and can reboot the machine when the process
  25           table is full.
  26
  27           If unsure, say N.
  28
  29 if WATCHDOG
  30
  31 config WATCHDOG_NOWAYOUT
  32         bool "Disable watchdog shutdown on close"
  33         help
  34           The default watchdog behaviour (which you get if you say N here) is
  35           to stop the timer if the process managing it closes the file
  36           /dev/watchdog. It's always remotely possible that this process might
  37           get killed. If you say Y here, the watchdog cannot be stopped once
  38           it has been started.
  39
  40 #
  41 # General Watchdog drivers
  42 #
  43
  44 comment "Watchdog Device Drivers"
  45
  46 # Architecture Independent
  47
  48 config SOFT_WATCHDOG
  49         tristate "Software watchdog"
  50         help
  51           A software monitoring watchdog. This will fail to reboot your system
  52           from some situations that the hardware watchdog will recover
  53           from. Equally it's a lot cheaper to install.
  54
  55           To compile this driver as a module, choose M here: the
  56           module will be called softdog.
  57
  58 config WM831X_WATCHDOG
  59         tristate "WM831x watchdog"
  60         depends on MFD_WM831X
  61         help
  62           Support for the watchdog in the WM831x AudioPlus PMICs.  When
  63           the watchdog triggers the system will be reset.
  64
  65 config WM8350_WATCHDOG
  66         tristate "WM8350 watchdog"
  67         depends on MFD_WM8350
  68         help
  69           Support for the watchdog in the WM8350 AudioPlus PMIC.  When
  70           the watchdog triggers the system will be reset.
  71
  72 # ALPHA Architecture
  73
  74 # ARM Architecture
  75
  76 config AT91RM9200_WATCHDOG
  77         tristate "AT91RM9200 watchdog"
  78         depends on ARCH_AT91RM9200
  79         help
  80           Watchdog timer embedded into AT91RM9200 chips. This will reboot your
  81           system when the timeout is reached.
  82
  83 config AT91SAM9X_WATCHDOG
  84         tristate "AT91SAM9X / AT91CAP9 watchdog"
  85         depends on ARCH_AT91 && !ARCH_AT91RM9200
  86         help
  87           Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
  88           reboot your system when the timeout is reached.
  89
  90 config 21285_WATCHDOG
  91         tristate "DC21285 watchdog"
  92         depends on FOOTBRIDGE
  93         help
  94           The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
  95           here if you wish to use this. Alternatively say M to compile the
  96           driver as a module, which will be called wdt285.
  97
  98           This driver does not work on all machines. In particular, early CATS
  99           boards have hardware problems that will cause the machine to simply
 100           lock up if the watchdog fires.
 101
 102           "If in doubt, leave it out" - say N.
 103
 104 config 977_WATCHDOG
 105         tristate "NetWinder WB83C977 watchdog"
 106         depends on FOOTBRIDGE && ARCH_NETWINDER
 107         help
 108           Say Y here to include support for the WB977 watchdog included in
 109           NetWinder machines. Alternatively say M to compile the driver as
 110           a module, which will be called wdt977.
 111
 112           Not sure? It's safe to say N.
 113
 114 config IXP2000_WATCHDOG
 115         tristate "IXP2000 Watchdog"
 116         depends on ARCH_IXP2000
 117         help
 118           Say Y here if to include support for the watchdog timer
 119           in the Intel IXP2000(2400, 2800, 2850) network processors.
 120           This driver can be built as a module by choosing M. The module
 121           will be called ixp2000_wdt.
 122
 123           Say N if you are unsure.
 124
 125 config IXP4XX_WATCHDOG
 126         tristate "IXP4xx Watchdog"
 127         depends on ARCH_IXP4XX
 128         help
 129           Say Y here if to include support for the watchdog timer
 130           in the Intel IXP4xx network processors. This driver can
 131           be built as a module by choosing M. The module will
 132           be called ixp4xx_wdt.
 133
 134           Note: The internal IXP4xx watchdog does a soft CPU reset
 135           which doesn't reset any peripherals. There are circumstances
 136           where the watchdog will fail to reset the board correctly
 137           (e.g., if the boot ROM is in an unreadable state).
 138
 139           Say N if you are unsure.
 140
 141 config KS8695_WATCHDOG
 142         tristate "KS8695 watchdog"
 143         depends on ARCH_KS8695
 144         help
 145           Watchdog timer embedded into KS8695 processor. This will reboot your
 146           system when the timeout is reached.
 147
 148 config HAVE_S3C2410_WATCHDOG
 149         bool
 150         help
 151           This will include watchdog timer support for Samsung SoCs. If
 152           you want to include watchdog support for any machine, kindly
 153           select this in the respective mach-XXXX/Kconfig file.
 154
 155 config S3C2410_WATCHDOG
 156         tristate "S3C2410 Watchdog"
 157         depends on ARCH_S3C2410 || HAVE_S3C2410_WATCHDOG
 158         help
 159           Watchdog timer block in the Samsung SoCs. This will reboot
 160           the system when the timer expires with the watchdog enabled.
 161
 162           The driver is limited by the speed of the system's PCLK
 163           signal, so with reasonably fast systems (PCLK around 50-66MHz)
 164           then watchdog intervals of over approximately 20seconds are
 165           unavailable.
 166
 167           The driver can be built as a module by choosing M, and will
 168           be called s3c2410_wdt
 169
 170 config SA1100_WATCHDOG
 171         tristate "SA1100/PXA2xx watchdog"
 172         depends on ARCH_SA1100 || ARCH_PXA
 173         help
 174           Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
 175           reboot your system when timeout is reached.
 176
 177           NOTE: once enabled, this timer cannot be disabled.
 178
 179           To compile this driver as a module, choose M here: the
 180           module will be called sa1100_wdt.
 181
 182 config MPCORE_WATCHDOG
 183         tristate "MPcore watchdog"
 184         depends on HAVE_ARM_TWD
 185         help
 186           Watchdog timer embedded into the MPcore system.
 187
 188           To compile this driver as a module, choose M here: the
 189           module will be called mpcore_wdt.
 190
 191 config EP93XX_WATCHDOG
 192         tristate "EP93xx Watchdog"
 193         depends on ARCH_EP93XX
 194         help
 195           Say Y here if to include support for the watchdog timer
 196           embedded in the Cirrus Logic EP93xx family of devices.
 197
 198           To compile this driver as a module, choose M here: the
 199           module will be called ep93xx_wdt.
 200
 201 config OMAP_WATCHDOG
 202         tristate "OMAP Watchdog"
 203         depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
 204         help
 205           Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.  Say 'Y'
 206           here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
 207
 208 config PNX4008_WATCHDOG
 209         tristate "PNX4008 Watchdog"
 210         depends on ARCH_PNX4008
 211         help
 212           Say Y here if to include support for the watchdog timer
 213           in the PNX4008 processor.
 214           This driver can be built as a module by choosing M. The module
 215           will be called pnx4008_wdt.
 216
 217           Say N if you are unsure.
 218
 219 config IOP_WATCHDOG
 220         tristate "IOP Watchdog"
 221         depends on PLAT_IOP
 222         select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
 223         help
 224           Say Y here if to include support for the watchdog timer
 225           in the Intel IOP3XX & IOP13XX I/O Processors.  This driver can
 226           be built as a module by choosing M. The module will
 227           be called iop_wdt.
 228
 229           Note: The IOP13XX watchdog does an Internal Bus Reset which will
 230           affect both cores and the peripherals of the IOP.  The ATU-X
 231           and/or ATUe configuration registers will remain intact, but if
 232           operating as an Root Complex and/or Central Resource, the PCI-X
 233           and/or PCIe busses will also be reset.  THIS IS A VERY BIG HAMMER.
 234
 235 config DAVINCI_WATCHDOG
 236         tristate "DaVinci watchdog"
 237         depends on ARCH_DAVINCI
 238         help
 239           Say Y here if to include support for the watchdog timer
 240           in the DaVinci DM644x/DM646x processors.
 241           To compile this driver as a module, choose M here: the
 242           module will be called davinci_wdt.
 243
 244           NOTE: once enabled, this timer cannot be disabled.
 245           Say N if you are unsure.
 246
 247 config ORION_WATCHDOG
 248         tristate "Orion watchdog"
 249         depends on ARCH_ORION5X || ARCH_KIRKWOOD
 250         help
 251           Say Y here if to include support for the watchdog timer
 252           in the Marvell Orion5x and Kirkwood ARM SoCs.
 253           To compile this driver as a module, choose M here: the
 254           module will be called orion_wdt.
 255
 256 config COH901327_WATCHDOG
 257         bool "ST-Ericsson COH 901 327 watchdog"
 258         depends on ARCH_U300
 259         default y if MACH_U300
 260         help
 261           Say Y here to include Watchdog timer support for the
 262           watchdog embedded into the ST-Ericsson U300 series platforms.
 263           This watchdog is used to reset the system and thus cannot be
 264           compiled as a module.
 265
 266 config TWL4030_WATCHDOG
 267         tristate "TWL4030 Watchdog"
 268         depends on TWL4030_CORE
 269         help
 270           Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
 271           watchdog timer support for TWL4030 chips.
 272
 273 config STMP3XXX_WATCHDOG
 274         tristate "Freescale STMP3XXX watchdog"
 275         depends on ARCH_STMP3XXX
 276         help
 277           Say Y here if to include support for the watchdog timer
 278           for the Sigmatel STMP37XX/378X SoC.
 279           To compile this driver as a module, choose M here: the
 280           module will be called stmp3xxx_wdt.
 281
 282 config NUC900_WATCHDOG
 283         tristate "Nuvoton NUC900 watchdog"
 284         depends on ARCH_W90X900
 285         help
 286           Say Y here if to include support for the watchdog timer
 287           for the Nuvoton NUC900 series SoCs.
 288           To compile this driver as a module, choose M here: the
 289           module will be called nuc900_wdt.
 290
 291 config ADX_WATCHDOG
 292         tristate "Avionic Design Xanthos watchdog"
 293         depends on ARCH_PXA_ADX
 294         help
 295           Say Y here if you want support for the watchdog timer on Avionic
 296           Design Xanthos boards.
 297
 298 config TS72XX_WATCHDOG
 299         tristate "TS-72XX SBC Watchdog"
 300         depends on MACH_TS72XX
 301         help
 302           Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
 303           watchdog timer implemented in a external CPLD chip. Say Y here
 304           if you want to support for the watchdog timer on TS-72XX boards.
 305
 306           To compile this driver as a module, choose M here: the
 307           module will be called ts72xx_wdt.
 308
 309 config MAX63XX_WATCHDOG
 310         tristate "Max63xx watchdog"
 311         depends on ARM && HAS_IOMEM
 312         help
 313           Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
 314
 315 config IMX2_WDT
 316         tristate "IMX2+ Watchdog"
 317         depends on ARCH_MX2 || ARCH_MX25 || ARCH_MX3 || ARCH_MX5
 318         help
 319           This is the driver for the hardware watchdog
 320           on the Freescale IMX2 and later processors.
 321           If you have one of these processors and wish to have
 322           watchdog support enabled, say Y, otherwise say N.
 323
 324           To compile this driver as a module, choose M here: the
 325           module will be called imx2_wdt.
 326
 327 # AVR32 Architecture
 328
 329 config AT32AP700X_WDT
 330         tristate "AT32AP700x watchdog"
 331         depends on CPU_AT32AP700X
 332         help
 333           Watchdog timer embedded into AT32AP700x devices. This will reboot
 334           your system when the timeout is reached.
 335
 336 # BLACKFIN Architecture
 337
 338 config BFIN_WDT
 339         tristate "Blackfin On-Chip Watchdog Timer"
 340         depends on BLACKFIN
 341         ---help---
 342           If you say yes here you will get support for the Blackfin On-Chip
 343           Watchdog Timer. If you have one of these processors and wish to
 344           have watchdog support enabled, say Y, otherwise say N.
 345
 346           To compile this driver as a module, choose M here: the
 347           module will be called bfin_wdt.
 348
 349 # CRIS Architecture
 350
 351 # FRV Architecture
 352
 353 # H8300 Architecture
 354
 355 # X86 (i386 + ia64 + x86_64) Architecture
 356
 357 config ACQUIRE_WDT
 358         tristate "Acquire SBC Watchdog Timer"
 359         depends on X86
 360         ---help---
 361           This is the driver for the hardware watchdog on Single Board
 362           Computers produced by Acquire Inc (and others). This watchdog
 363           simply watches your kernel to make sure it doesn't freeze, and if
 364           it does, it reboots your computer after a certain amount of time.
 365
 366           To compile this driver as a module, choose M here: the
 367           module will be called acquirewdt.
 368
 369           Most people will say N.
 370
 371 config ADVANTECH_WDT
 372         tristate "Advantech SBC Watchdog Timer"
 373         depends on X86
 374         help
 375           If you are configuring a Linux kernel for the Advantech single-board
 376           computer, say `Y' here to support its built-in watchdog timer
 377           feature. More information can be found at
 378           <http://www.advantech.com.tw/products/>
 379
 380 config ALIM1535_WDT
 381         tristate "ALi M1535 PMU Watchdog Timer"
 382         depends on X86 && PCI
 383         ---help---
 384           This is the driver for the hardware watchdog on the ALi M1535 PMU.
 385
 386           To compile this driver as a module, choose M here: the
 387           module will be called alim1535_wdt.
 388
 389           Most people will say N.
 390
 391 config ALIM7101_WDT
 392         tristate "ALi M7101 PMU Computer Watchdog"
 393         depends on PCI
 394         help
 395           This is the driver for the hardware watchdog on the ALi M7101 PMU
 396           as used in the x86 Cobalt servers and also found in some
 397           SPARC Netra servers too.
 398
 399           To compile this driver as a module, choose M here: the
 400           module will be called alim7101_wdt.
 401
 402           Most people will say N.
 403
 404 config GEODE_WDT
 405         tristate "AMD Geode CS5535/CS5536 Watchdog"
 406         depends on CS5535_MFGPT
 407         help
 408           This driver enables a watchdog capability built into the
 409           CS5535/CS5536 companion chips for the AMD Geode GX and LX
 410           processors.  This watchdog watches your kernel to make sure
 411           it doesn't freeze, and if it does, it reboots your computer after
 412           a certain amount of time.
 413
 414           You can compile this driver directly into the kernel, or use
 415           it as a module.  The module will be called geodewdt.
 416
 417 config SC520_WDT
 418         tristate "AMD Elan SC520 processor Watchdog"
 419         depends on X86
 420         help
 421           This is the driver for the hardware watchdog built in to the
 422           AMD "Elan" SC520 microcomputer commonly used in embedded systems.
 423           This watchdog simply watches your kernel to make sure it doesn't
 424           freeze, and if it does, it reboots your computer after a certain
 425           amount of time.
 426
 427           You can compile this driver directly into the kernel, or use
 428           it as a module.  The module will be called sc520_wdt.
 429
 430 config SBC_FITPC2_WATCHDOG
 431         tristate "Compulab SBC-FITPC2 watchdog"
 432         depends on X86
 433         ---help---
 434           This is the driver for the built-in watchdog timer on the fit-PC2,
 435           fit-PC2i, CM-iAM single-board computers made by Compulab.
 436
 437           It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
 438           When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
 439
 440           Entering BIOS setup temporary disables watchdog operation regardless to current state,
 441           so system will not be restarted while user in BIOS setup.
 442
 443           Once watchdog was enabled the system will be restarted every
 444           "Watchdog Timer Value" period, so to prevent it user can restart or
 445           disable the watchdog.
 446
 447           To compile this driver as a module, choose M here: the
 448           module will be called sbc_fitpc2_wdt.
 449
 450           Most people will say N.
 451
 452 config EUROTECH_WDT
 453         tristate "Eurotech CPU-1220/1410 Watchdog Timer"
 454         depends on X86
 455         help
 456           Enable support for the watchdog timer on the Eurotech CPU-1220 and
 457           CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
 458           information are at <http://www.eurotech.it/>.
 459
 460 config IB700_WDT
 461         tristate "IB700 SBC Watchdog Timer"
 462         depends on X86
 463         ---help---
 464           This is the driver for the hardware watchdog on the IB700 Single
 465           Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
 466           simply watches your kernel to make sure it doesn't freeze, and if
 467           it does, it reboots your computer after a certain amount of time.
 468
 469           This driver is like the WDT501 driver but for slightly different hardware.
 470
 471           To compile this driver as a module, choose M here: the
 472           module will be called ib700wdt.
 473
 474           Most people will say N.
 475
 476 config IBMASR
 477         tristate "IBM Automatic Server Restart"
 478         depends on X86
 479         help
 480           This is the driver for the IBM Automatic Server Restart watchdog
 481           timer built-in into some eServer xSeries machines.
 482
 483           To compile this driver as a module, choose M here: the
 484           module will be called ibmasr.
 485
 486 config WAFER_WDT
 487         tristate "ICP Single Board Computer Watchdog Timer"
 488         depends on X86
 489         help
 490           This is a driver for the hardware watchdog on the ICP Single
 491           Board Computer. This driver is working on (at least) the following
 492           IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
 493
 494           To compile this driver as a module, choose M here: the
 495           module will be called wafer5823wdt.
 496
 497 config I6300ESB_WDT
 498         tristate "Intel 6300ESB Timer/Watchdog"
 499         depends on X86 && PCI
 500         ---help---
 501           Hardware driver for the watchdog timer built into the Intel
 502           6300ESB controller hub.
 503
 504           To compile this driver as a module, choose M here: the
 505           module will be called i6300esb.
 506
 507 config ITCO_WDT
 508         tristate "Intel TCO Timer/Watchdog"
 509         depends on (X86 || IA64) && PCI
 510         ---help---
 511           Hardware driver for the intel TCO timer based watchdog devices.
 512           These drivers are included in the Intel 82801 I/O Controller
 513           Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
 514           controller hub.
 515
 516           The TCO (Total Cost of Ownership) timer is a watchdog timer
 517           that will reboot the machine after its second expiration. The
 518           expiration time can be configured with the "heartbeat" parameter.
 519
 520           On some motherboards the driver may fail to reset the chipset's
 521           NO_REBOOT flag which prevents the watchdog from rebooting the
 522           machine. If this is the case you will get a kernel message like
 523           "failed to reset NO_REBOOT flag, reboot disabled by hardware".
 524
 525           To compile this driver as a module, choose M here: the
 526           module will be called iTCO_wdt.
 527
 528 config ITCO_VENDOR_SUPPORT
 529         bool "Intel TCO Timer/Watchdog Specific Vendor Support"
 530         depends on ITCO_WDT
 531         ---help---
 532           Add vendor specific support to the intel TCO timer based watchdog
 533           devices. At this moment we only have additional support for some
 534           SuperMicro Inc. motherboards.
 535
 536 config IT8712F_WDT
 537         tristate "IT8712F (Smart Guardian) Watchdog Timer"
 538         depends on X86
 539         ---help---
 540           This is the driver for the built-in watchdog timer on the IT8712F
 541           Super I/0 chipset used on many motherboards.
 542
 543           To compile this driver as a module, choose M here: the
 544           module will be called it8712f_wdt.
 545
 546 config IT87_WDT
 547         tristate "IT87 Watchdog Timer"
 548         depends on X86 && EXPERIMENTAL
 549         ---help---
 550           This is the driver for the hardware watchdog on the ITE IT8716,
 551           IT8718, IT8726, IT8712(Version J,K) Super I/O chips. This watchdog
 552           simply watches your kernel to make sure it doesn't freeze, and if
 553           it does, it reboots your computer after a certain amount of time.
 554
 555           To compile this driver as a module, choose M here: the module will
 556           be called it87_wdt.
 557
 558 config HP_WATCHDOG
 559         tristate "HP Proliant iLO 2 Hardware Watchdog Timer"
 560         depends on X86
 561         help
 562           A software monitoring watchdog and NMI sourcing driver. This driver
 563           will detect lockups and provide stack trace. Also, when an NMI
 564           occurs this driver will make the necessary BIOS calls to log
 565           the cause of the NMI. This is a driver that will only load on a
 566           HP ProLiant system with a minimum of iLO2 support.
 567           To compile this driver as a module, choose M here: the
 568           module will be called hpwdt.
 569
 570 config SC1200_WDT
 571         tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
 572         depends on X86
 573         help
 574           This is a driver for National Semiconductor PC87307/PC97307 hardware
 575           watchdog cards as found on the SC1200. This watchdog is mainly used
 576           for power management purposes and can be used to power down the device
 577           during inactivity periods (includes interrupt activity monitoring).
 578
 579           To compile this driver as a module, choose M here: the
 580           module will be called sc1200wdt.
 581
 582           Most people will say N.
 583
 584 config SCx200_WDT
 585         tristate "National Semiconductor SCx200 Watchdog"
 586         depends on SCx200 && PCI
 587         help
 588           Enable the built-in watchdog timer support on the National
 589           Semiconductor SCx200 processors.
 590
 591           If compiled as a module, it will be called scx200_wdt.
 592
 593 config PC87413_WDT
 594         tristate "NS PC87413 watchdog"
 595         depends on X86
 596         ---help---
 597           This is the driver for the hardware watchdog on the PC87413 chipset
 598           This watchdog simply watches your kernel to make sure it doesn't
 599           freeze, and if it does, it reboots your computer after a certain
 600           amount of time.
 601
 602           To compile this driver as a module, choose M here: the
 603           module will be called pc87413_wdt.
 604
 605           Most people will say N.
 606
 607 config RDC321X_WDT
 608         tristate "RDC R-321x SoC watchdog"
 609         depends on X86_RDC321X
 610         help
 611           This is the driver for the built in hardware watchdog
 612           in the RDC R-321x SoC.
 613
 614           To compile this driver as a module, choose M here: the
 615           module will be called rdc321x_wdt.
 616
 617 config 60XX_WDT
 618         tristate "SBC-60XX Watchdog Timer"
 619         depends on X86
 620         help
 621           This driver can be used with the watchdog timer found on some
 622           single board computers, namely the 6010 PII based computer.
 623           It may well work with other cards.  It reads port 0x443 to enable
 624           and re-set the watchdog timer, and reads port 0x45 to disable
 625           the watchdog.  If you have a card that behave in similar ways,
 626           you can probably make this driver work with your card as well.
 627
 628           You can compile this driver directly into the kernel, or use
 629           it as a module.  The module will be called sbc60xxwdt.
 630
 631 config SBC8360_WDT
 632         tristate "SBC8360 Watchdog Timer"
 633         depends on X86
 634         ---help---
 635
 636           This is the driver for the hardware watchdog on the SBC8360 Single
 637           Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
 638
 639           To compile this driver as a module, choose M here: the
 640           module will be called sbc8360.
 641
 642           Most people will say N.
 643
 644 config SBC7240_WDT
 645         tristate "SBC Nano 7240 Watchdog Timer"
 646         depends on X86_32
 647         ---help---
 648           This is the driver for the hardware watchdog found on the IEI
 649           single board computers EPIC Nano 7240 (and likely others). This
 650           watchdog simply watches your kernel to make sure it doesn't freeze,
 651           and if it does, it reboots your computer after a certain amount of
 652           time.
 653
 654           To compile this driver as a module, choose M here: the
 655           module will be called sbc7240_wdt.
 656
 657 config CPU5_WDT
 658         tristate "SMA CPU5 Watchdog"
 659         depends on X86
 660         ---help---
 661           TBD.
 662           To compile this driver as a module, choose M here: the
 663           module will be called cpu5wdt.
 664
 665 config SMSC_SCH311X_WDT
 666         tristate "SMSC SCH311X Watchdog Timer"
 667         depends on X86
 668         ---help---
 669           This is the driver for the hardware watchdog timer on the
 670           SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
 671           (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
 672           serial ports).
 673
 674           To compile this driver as a module, choose M here: the
 675           module will be called sch311x_wdt.
 676
 677 config SMSC37B787_WDT
 678         tristate "Winbond SMsC37B787 Watchdog Timer"
 679         depends on X86
 680         ---help---
 681           This is the driver for the hardware watchdog component on the
 682           Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
 683           from Vision Systems and maybe others.
 684
 685           This watchdog simply watches your kernel to make sure it doesn't
 686           freeze, and if it does, it reboots your computer after a certain
 687           amount of time.
 688
 689           Usually a userspace daemon will notify the kernel WDT driver that
 690           userspace is still alive, at regular intervals.
 691
 692           To compile this driver as a module, choose M here: the
 693           module will be called smsc37b787_wdt.
 694
 695           Most people will say N.
 696
 697 config W83627HF_WDT
 698         tristate "W83627HF Watchdog Timer"
 699         depends on X86
 700         ---help---
 701           This is the driver for the hardware watchdog on the W83627HF chipset
 702           as used in Advantech PC-9578 and Tyan S2721-533 motherboards
 703           (and likely others).  This watchdog simply watches your kernel to
 704           make sure it doesn't freeze, and if it does, it reboots your computer
 705           after a certain amount of time.
 706
 707           To compile this driver as a module, choose M here: the
 708           module will be called w83627hf_wdt.
 709
 710           Most people will say N.
 711
 712 config W83697HF_WDT
 713         tristate "W83697HF/W83697HG Watchdog Timer"
 714         depends on X86
 715         ---help---
 716           This is the driver for the hardware watchdog on the W83697HF/HG
 717           chipset as used in Dedibox/VIA motherboards (and likely others).
 718           This watchdog simply watches your kernel to make sure it doesn't
 719           freeze, and if it does, it reboots your computer after a certain
 720           amount of time.
 721
 722           To compile this driver as a module, choose M here: the
 723           module will be called w83697hf_wdt.
 724
 725           Most people will say N.
 726
 727 config W83697UG_WDT
 728         tristate "W83697UG/W83697UF Watchdog Timer"
 729         depends on X86
 730         ---help---
 731           This is the driver for the hardware watchdog on the W83697UG/UF
 732           chipset as used in MSI Fuzzy CX700 VIA motherboards (and likely others).
 733           This watchdog simply watches your kernel to make sure it doesn't
 734           freeze, and if it does, it reboots your computer after a certain
 735           amount of time.
 736
 737           To compile this driver as a module, choose M here: the
 738           module will be called w83697ug_wdt.
 739
 740           Most people will say N.
 741
 742 config W83877F_WDT
 743         tristate "W83877F (EMACS) Watchdog Timer"
 744         depends on X86
 745         ---help---
 746           This is the driver for the hardware watchdog on the W83877F chipset
 747           as used in EMACS PC-104 motherboards (and likely others).  This
 748           watchdog simply watches your kernel to make sure it doesn't freeze,
 749           and if it does, it reboots your computer after a certain amount of
 750           time.
 751
 752           To compile this driver as a module, choose M here: the
 753           module will be called w83877f_wdt.
 754
 755           Most people will say N.
 756
 757 config W83977F_WDT
 758         tristate "W83977F (PCM-5335) Watchdog Timer"
 759         depends on X86
 760         ---help---
 761           This is the driver for the hardware watchdog on the W83977F I/O chip
 762           as used in AAEON's PCM-5335 SBC (and likely others).  This
 763           watchdog simply watches your kernel to make sure it doesn't freeze,
 764           and if it does, it reboots your computer after a certain amount of
 765           time.
 766
 767           To compile this driver as a module, choose M here: the
 768           module will be called w83977f_wdt.
 769
 770 config MACHZ_WDT
 771         tristate "ZF MachZ Watchdog"
 772         depends on X86
 773         ---help---
 774           If you are using a ZF Micro MachZ processor, say Y here, otherwise
 775           N.  This is the driver for the watchdog timer built-in on that
 776           processor using ZF-Logic interface.  This watchdog simply watches
 777           your kernel to make sure it doesn't freeze, and if it does, it
 778           reboots your computer after a certain amount of time.
 779
 780           To compile this driver as a module, choose M here: the
 781           module will be called machzwd.
 782
 783 config SBC_EPX_C3_WATCHDOG
 784         tristate "Winsystems SBC EPX-C3 watchdog"
 785         depends on X86
 786         ---help---
 787           This is the driver for the built-in watchdog timer on the EPX-C3
 788           Single-board computer made by Winsystems, Inc.
 789
 790           *Note*: This hardware watchdog is not probeable and thus there
 791           is no way to know if writing to its IO address will corrupt
 792           your system or have any real effect.  The only way to be sure
 793           that this driver does what you want is to make sure you
 794           are running it on an EPX-C3 from Winsystems with the watchdog
 795           timer at IO address 0x1ee and 0x1ef.  It will write to both those
 796           IO ports.  Basically, the assumption is made that if you compile
 797           this driver into your kernel and/or load it as a module, that you
 798           know what you are doing and that you are in fact running on an
 799           EPX-C3 board!
 800
 801           To compile this driver as a module, choose M here: the
 802           module will be called sbc_epx_c3.
 803
 804 # M32R Architecture
 805
 806 # M68K Architecture
 807
 808 # M68KNOMMU Architecture
 809
 810 # MIPS Architecture
 811
 812 config BCM47XX_WDT
 813         tristate "Broadcom BCM47xx Watchdog Timer"
 814         depends on BCM47XX
 815         help
 816           Hardware driver for the Broadcom BCM47xx Watchog Timer.
 817
 818 config RC32434_WDT
 819         tristate "IDT RC32434 SoC Watchdog Timer"
 820         depends on MIKROTIK_RB532
 821         help
 822           Hardware driver for the IDT RC32434 SoC built-in
 823           watchdog timer.
 824
 825           To compile this driver as a module, choose M here: the
 826           module will be called rc32434_wdt.
 827
 828 config INDYDOG
 829         tristate "Indy/I2 Hardware Watchdog"
 830         depends on SGI_HAS_INDYDOG
 831         help
 832           Hardware driver for the Indy's/I2's watchdog. This is a
 833           watchdog timer that will reboot the machine after a 60 second
 834           timer expired and no process has written to /dev/watchdog during
 835           that time.
 836
 837 config WDT_MTX1
 838         tristate "MTX-1 Hardware Watchdog"
 839         depends on MIPS_MTX1
 840         help
 841           Hardware driver for the MTX-1 boards. This is a watchdog timer that
 842           will reboot the machine after a 100 seconds timer expired.
 843
 844 config PNX833X_WDT
 845         tristate "PNX833x Hardware Watchdog"
 846         depends on SOC_PNX8335
 847         help
 848           Hardware driver for the PNX833x's watchdog. This is a
 849           watchdog timer that will reboot the machine after a programable
 850           timer has expired and no process has written to /dev/watchdog during
 851           that time.
 852
 853 config SIBYTE_WDOG
 854         tristate "Sibyte SoC hardware watchdog"
 855         depends on CPU_SB1
 856         help
 857           Watchdog driver for the built in watchdog hardware in Sibyte
 858           SoC processors.  There are apparently two watchdog timers
 859           on such processors; this driver supports only the first one,
 860           because currently Linux only supports exporting one watchdog
 861           to userspace.
 862
 863           To compile this driver as a loadable module, choose M here.
 864           The module will be called sb_wdog.
 865
 866 config AR7_WDT
 867         tristate "TI AR7 Watchdog Timer"
 868         depends on AR7
 869         help
 870           Hardware driver for the TI AR7 Watchdog Timer.
 871
 872 config TXX9_WDT
 873         tristate "Toshiba TXx9 Watchdog Timer"
 874         depends on CPU_TX39XX || CPU_TX49XX
 875         help
 876           Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
 877
 878 config OCTEON_WDT
 879         tristate "Cavium OCTEON SOC family Watchdog Timer"
 880         depends on CPU_CAVIUM_OCTEON
 881         default y
 882         select EXPORT_UASM if OCTEON_WDT = m
 883         help
 884           Hardware driver for OCTEON's on chip watchdog timer.
 885           Enables the watchdog for all cores running Linux. It
 886           installs a NMI handler and pokes the watchdog based on an
 887           interrupt.  On first expiration of the watchdog, the
 888           interrupt handler pokes it.  The second expiration causes an
 889           NMI that prints a message. The third expiration causes a
 890           global soft reset.
 891
 892           When userspace has /dev/watchdog open, no poking is done
 893           from the first interrupt, it is then only poked when the
 894           device is written.
 895
 896 # PARISC Architecture
 897
 898 # POWERPC Architecture
 899
 900 config GEF_WDT
 901         tristate "GE Watchdog Timer"
 902         depends on GEF_SBC610 || GEF_SBC310 || GEF_PPC9A
 903         ---help---
 904           Watchdog timer found in a number of GE single board computers.
 905
 906 config MPC5200_WDT
 907         bool "MPC52xx Watchdog Timer"
 908         depends on PPC_MPC52xx
 909         help
 910           Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
 911
 912 config 8xxx_WDT
 913         tristate "MPC8xxx Platform Watchdog Timer"
 914         depends on PPC_8xx || PPC_83xx || PPC_86xx
 915         help
 916           This driver is for a SoC level watchdog that exists on some
 917           Freescale PowerPC processors. So far this driver supports:
 918           - MPC8xx watchdogs
 919           - MPC83xx watchdogs
 920           - MPC86xx watchdogs
 921
 922           For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
 923
 924 config MV64X60_WDT
 925         tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
 926         depends on MV64X60
 927
 928 config PIKA_WDT
 929         tristate "PIKA FPGA Watchdog"
 930         depends on WARP
 931         default y
 932         help
 933           This enables the watchdog in the PIKA FPGA. Currently used on
 934           the Warp platform.
 935
 936 config BOOKE_WDT
 937         bool "PowerPC Book-E Watchdog Timer"
 938         depends on BOOKE || 4xx
 939         ---help---
 940           Please see Documentation/watchdog/watchdog-api.txt for
 941           more information.
 942
 943 # PPC64 Architecture
 944
 945 config WATCHDOG_RTAS
 946         tristate "RTAS watchdog"
 947         depends on PPC_RTAS
 948         help
 949           This driver adds watchdog support for the RTAS watchdog.
 950
 951           To compile this driver as a module, choose M here. The module
 952           will be called wdrtas.
 953
 954 # S390 Architecture
 955
 956 config ZVM_WATCHDOG
 957         tristate "z/VM Watchdog Timer"
 958         depends on S390
 959         help
 960           IBM s/390 and zSeries machines running under z/VM 5.1 or later
 961           provide a virtual watchdog timer to their guest that cause a
 962           user define Control Program command to be executed after a
 963           timeout.
 964
 965           To compile this driver as a module, choose M here. The module
 966           will be called vmwatchdog.
 967
 968 # SUPERH (sh + sh64) Architecture
 969
 970 config SH_WDT
 971         tristate "SuperH Watchdog"
 972         depends on SUPERH && (CPU_SH3 || CPU_SH4)
 973         help
 974           This driver adds watchdog support for the integrated watchdog in the
 975           SuperH processors. If you have one of these processors and wish
 976           to have watchdog support enabled, say Y, otherwise say N.
 977
 978           As a side note, saying Y here will automatically boost HZ to 1000
 979           so that the timer has a chance to clear the overflow counter. On
 980           slower systems (such as the SH-2 and SH-3) this will likely yield
 981           some performance issues. As such, the WDT should be avoided here
 982           unless it is absolutely necessary.
 983
 984           To compile this driver as a module, choose M here: the
 985           module will be called shwdt.
 986
 987 config SH_WDT_MMAP
 988         bool "Allow mmap of SH WDT"
 989         default n
 990         depends on SH_WDT
 991         help
 992           If you say Y here, user applications will be able to mmap the
 993           WDT/CPG registers.
 994
 995 # SPARC Architecture
 996
 997 # SPARC64 Architecture
 998
 999 config WATCHDOG_CP1XXX
1000         tristate "CP1XXX Hardware Watchdog support"
1001         depends on SPARC64 && PCI
1002         ---help---
1003           This is the driver for the hardware watchdog timers present on
1004           Sun Microsystems CompactPCI models CP1400 and CP1500.
1005
1006           To compile this driver as a module, choose M here: the
1007           module will be called cpwatchdog.
1008
1009           If you do not have a CompactPCI model CP1400 or CP1500, or
1010           another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1011           you should say N to this option.
1012
1013 config WATCHDOG_RIO
1014         tristate "RIO Hardware Watchdog support"
1015         depends on SPARC64 && PCI
1016         help
1017           Say Y here to support the hardware watchdog capability on Sun RIO
1018           machines.  The watchdog timeout period is normally one minute but
1019           can be changed with a boot-time parameter.
1020
1021 # XTENSA Architecture
1022
1023 #
1024 # ISA-based Watchdog Cards
1025 #
1026
1027 comment "ISA-based Watchdog Cards"
1028         depends on ISA
1029
1030 config PCWATCHDOG
1031         tristate "Berkshire Products ISA-PC Watchdog"
1032         depends on ISA
1033         ---help---
1034           This is the driver for the Berkshire Products ISA-PC Watchdog card.
1035           This card simply watches your kernel to make sure it doesn't freeze,
1036           and if it does, it reboots your computer after a certain amount of
1037           time. This driver is like the WDT501 driver but for different
1038           hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1039           watchdog cards can be ordered from <http://www.berkprod.com/>.
1040
1041           To compile this driver as a module, choose M here: the
1042           module will be called pcwd.
1043
1044           Most people will say N.
1045
1046 config MIXCOMWD
1047         tristate "Mixcom Watchdog"
1048         depends on ISA
1049         ---help---
1050           This is a driver for the Mixcom hardware watchdog cards.  This
1051           watchdog simply watches your kernel to make sure it doesn't freeze,
1052           and if it does, it reboots your computer after a certain amount of
1053           time.
1054
1055           To compile this driver as a module, choose M here: the
1056           module will be called mixcomwd.
1057
1058           Most people will say N.
1059
1060 config WDT
1061         tristate "WDT Watchdog timer"
1062         depends on ISA
1063         ---help---
1064           If you have a WDT500P or WDT501P watchdog board, say Y here,
1065           otherwise N. It is not possible to probe for this board, which means
1066           that you have to inform the kernel about the IO port and IRQ that
1067           is needed (you can do this via the io and irq parameters)
1068
1069           To compile this driver as a module, choose M here: the
1070           module will be called wdt.
1071
1072 #
1073 # PCI-based Watchdog Cards
1074 #
1075
1076 comment "PCI-based Watchdog Cards"
1077         depends on PCI
1078
1079 config PCIPCWATCHDOG
1080         tristate "Berkshire Products PCI-PC Watchdog"
1081         depends on PCI
1082         ---help---
1083           This is the driver for the Berkshire Products PCI-PC Watchdog card.
1084           This card simply watches your kernel to make sure it doesn't freeze,
1085           and if it does, it reboots your computer after a certain amount of
1086           time. The card can also monitor the internal temperature of the PC.
1087           More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1088
1089           To compile this driver as a module, choose M here: the
1090           module will be called pcwd_pci.
1091
1092           Most people will say N.
1093
1094 config WDTPCI
1095         tristate "PCI-WDT500/501 Watchdog timer"
1096         depends on PCI
1097         ---help---
1098           If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1099
1100           If you have a PCI-WDT501 watchdog board then you can enable the
1101           temperature sensor by setting the type parameter to 501.
1102
1103           If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1104           can do this via the tachometer parameter. Only do this if you have a
1105           fan tachometer actually set up.
1106
1107           To compile this driver as a module, choose M here: the
1108           module will be called wdt_pci.
1109
1110 #
1111 # USB-based Watchdog Cards
1112 #
1113
1114 comment "USB-based Watchdog Cards"
1115         depends on USB
1116
1117 config USBPCWATCHDOG
1118         tristate "Berkshire Products USB-PC Watchdog"
1119         depends on USB
1120         ---help---
1121           This is the driver for the Berkshire Products USB-PC Watchdog card.
1122           This card simply watches your kernel to make sure it doesn't freeze,
1123           and if it does, it reboots your computer after a certain amount of
1124           time. The card can also monitor the internal temperature of the PC.
1125           More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1126
1127           To compile this driver as a module, choose M here: the
1128           module will be called pcwd_usb.
1129
1130           Most people will say N.
1131
1132 endif # WATCHDOG