linux/drivers/watchdog/Kconfig
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   1#
   2# Watchdog device configuration
   3#
   4
   5menuconfig 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
  29if WATCHDOG
  30
  31config 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
  44comment "Watchdog Device Drivers"
  45
  46# Architecture Independent
  47
  48config 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# ALPHA Architecture
  59
  60# ARM Architecture
  61
  62config AT91RM9200_WATCHDOG
  63        tristate "AT91RM9200 watchdog"
  64        depends on ARCH_AT91RM9200
  65        help
  66          Watchdog timer embedded into AT91RM9200 chips. This will reboot your
  67          system when the timeout is reached.
  68
  69config AT91SAM9X_WATCHDOG
  70        tristate "AT91SAM9X / AT91CAP9 watchdog"
  71        depends on ARCH_AT91 && !ARCH_AT91RM9200
  72        help
  73          Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
  74          reboot your system when the timeout is reached.
  75
  76config 21285_WATCHDOG
  77        tristate "DC21285 watchdog"
  78        depends on FOOTBRIDGE
  79        help
  80          The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
  81          here if you wish to use this. Alternatively say M to compile the
  82          driver as a module, which will be called wdt285.
  83
  84          This driver does not work on all machines. In particular, early CATS
  85          boards have hardware problems that will cause the machine to simply
  86          lock up if the watchdog fires.
  87
  88          "If in doubt, leave it out" - say N.
  89
  90config 977_WATCHDOG
  91        tristate "NetWinder WB83C977 watchdog"
  92        depends on FOOTBRIDGE && ARCH_NETWINDER
  93        help
  94          Say Y here to include support for the WB977 watchdog included in
  95          NetWinder machines. Alternatively say M to compile the driver as
  96          a module, which will be called wdt977.
  97
  98          Not sure? It's safe to say N.
  99
 100config IXP2000_WATCHDOG
 101        tristate "IXP2000 Watchdog"
 102        depends on ARCH_IXP2000
 103        help
 104          Say Y here if to include support for the watchdog timer
 105          in the Intel IXP2000(2400, 2800, 2850) network processors.
 106          This driver can be built as a module by choosing M. The module
 107          will be called ixp2000_wdt.
 108
 109          Say N if you are unsure.
 110
 111config IXP4XX_WATCHDOG
 112        tristate "IXP4xx Watchdog"
 113        depends on ARCH_IXP4XX
 114        help
 115          Say Y here if to include support for the watchdog timer
 116          in the Intel IXP4xx network processors. This driver can
 117          be built as a module by choosing M. The module will
 118          be called ixp4xx_wdt.
 119
 120          Note: The internal IXP4xx watchdog does a soft CPU reset
 121          which doesn't reset any peripherals. There are circumstances
 122          where the watchdog will fail to reset the board correctly
 123          (e.g., if the boot ROM is in an unreadable state).
 124
 125          Say N if you are unsure.
 126
 127config KS8695_WATCHDOG
 128        tristate "KS8695 watchdog"
 129        depends on ARCH_KS8695
 130        help
 131          Watchdog timer embedded into KS8695 processor. This will reboot your
 132          system when the timeout is reached.
 133
 134config S3C2410_WATCHDOG
 135        tristate "S3C2410 Watchdog"
 136        depends on ARCH_S3C2410
 137        help
 138          Watchdog timer block in the Samsung S3C2410 chips. This will
 139          reboot the system when the timer expires with the watchdog
 140          enabled.
 141
 142          The driver is limited by the speed of the system's PCLK
 143          signal, so with reasonably fast systems (PCLK around 50-66MHz)
 144          then watchdog intervals of over approximately 20seconds are
 145          unavailable.
 146
 147          The driver can be built as a module by choosing M, and will
 148          be called s3c2410_wdt
 149
 150config SA1100_WATCHDOG
 151        tristate "SA1100/PXA2xx watchdog"
 152        depends on ARCH_SA1100 || ARCH_PXA
 153        help
 154          Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
 155          reboot your system when timeout is reached.
 156
 157          NOTE: once enabled, this timer cannot be disabled.
 158
 159          To compile this driver as a module, choose M here: the
 160          module will be called sa1100_wdt.
 161
 162config MPCORE_WATCHDOG
 163        tristate "MPcore watchdog"
 164        depends on ARM_MPCORE_PLATFORM && LOCAL_TIMERS
 165        help
 166          Watchdog timer embedded into the MPcore system.
 167
 168          To compile this driver as a module, choose M here: the
 169          module will be called mpcore_wdt.
 170
 171config EP93XX_WATCHDOG
 172        tristate "EP93xx Watchdog"
 173        depends on ARCH_EP93XX
 174        help
 175          Say Y here if to include support for the watchdog timer
 176          embedded in the Cirrus Logic EP93xx family of devices.
 177
 178          To compile this driver as a module, choose M here: the
 179          module will be called ep93xx_wdt.
 180
 181config OMAP_WATCHDOG
 182        tristate "OMAP Watchdog"
 183        depends on ARCH_OMAP16XX || ARCH_OMAP24XX
 184        help
 185          Support for TI OMAP1610/OMAP1710/OMAP2420 watchdog.  Say 'Y' here to
 186          enable the OMAP1610/OMAP1710 watchdog timer.
 187
 188config PNX4008_WATCHDOG
 189        tristate "PNX4008 Watchdog"
 190        depends on ARCH_PNX4008
 191        help
 192          Say Y here if to include support for the watchdog timer
 193          in the PNX4008 processor.
 194          This driver can be built as a module by choosing M. The module
 195          will be called pnx4008_wdt.
 196
 197          Say N if you are unsure.
 198
 199config IOP_WATCHDOG
 200        tristate "IOP Watchdog"
 201        depends on PLAT_IOP
 202        select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
 203        help
 204          Say Y here if to include support for the watchdog timer
 205          in the Intel IOP3XX & IOP13XX I/O Processors.  This driver can
 206          be built as a module by choosing M. The module will
 207          be called iop_wdt.
 208
 209          Note: The IOP13XX watchdog does an Internal Bus Reset which will
 210          affect both cores and the peripherals of the IOP.  The ATU-X
 211          and/or ATUe configuration registers will remain intact, but if
 212          operating as an Root Complex and/or Central Resource, the PCI-X
 213          and/or PCIe busses will also be reset.  THIS IS A VERY BIG HAMMER.
 214
 215config DAVINCI_WATCHDOG
 216        tristate "DaVinci watchdog"
 217        depends on ARCH_DAVINCI
 218        help
 219          Say Y here if to include support for the watchdog timer
 220          in the DaVinci DM644x/DM646x processors.
 221          To compile this driver as a module, choose M here: the
 222          module will be called davinci_wdt.
 223
 224          NOTE: once enabled, this timer cannot be disabled.
 225          Say N if you are unsure.
 226
 227config ORION5X_WATCHDOG
 228        tristate "Orion5x watchdog"
 229        depends on ARCH_ORION5X
 230        help
 231          Say Y here if to include support for the watchdog timer
 232          in the Orion5x ARM SoCs.
 233          To compile this driver as a module, choose M here: the
 234          module will be called orion5x_wdt.
 235
 236# ARM26 Architecture
 237
 238# AVR32 Architecture
 239
 240config AT32AP700X_WDT
 241        tristate "AT32AP700x watchdog"
 242        depends on CPU_AT32AP700X
 243        help
 244          Watchdog timer embedded into AT32AP700x devices. This will reboot
 245          your system when the timeout is reached.
 246
 247# BLACKFIN Architecture
 248
 249config BFIN_WDT
 250        tristate "Blackfin On-Chip Watchdog Timer"
 251        depends on BLACKFIN
 252        ---help---
 253          If you say yes here you will get support for the Blackfin On-Chip
 254          Watchdog Timer. If you have one of these processors and wish to
 255          have watchdog support enabled, say Y, otherwise say N.
 256
 257          To compile this driver as a module, choose M here: the
 258          module will be called bfin_wdt.
 259
 260# CRIS Architecture
 261
 262# FRV Architecture
 263
 264# H8300 Architecture
 265
 266# X86 (i386 + ia64 + x86_64) Architecture
 267
 268config ACQUIRE_WDT
 269        tristate "Acquire SBC Watchdog Timer"
 270        depends on X86
 271        ---help---
 272          This is the driver for the hardware watchdog on Single Board
 273          Computers produced by Acquire Inc (and others). This watchdog
 274          simply watches your kernel to make sure it doesn't freeze, and if
 275          it does, it reboots your computer after a certain amount of time.
 276
 277          To compile this driver as a module, choose M here: the
 278          module will be called acquirewdt.
 279
 280          Most people will say N.
 281
 282config ADVANTECH_WDT
 283        tristate "Advantech SBC Watchdog Timer"
 284        depends on X86
 285        help
 286          If you are configuring a Linux kernel for the Advantech single-board
 287          computer, say `Y' here to support its built-in watchdog timer
 288          feature. More information can be found at
 289          <http://www.advantech.com.tw/products/>
 290
 291config ALIM1535_WDT
 292        tristate "ALi M1535 PMU Watchdog Timer"
 293        depends on X86 && PCI
 294        ---help---
 295          This is the driver for the hardware watchdog on the ALi M1535 PMU.
 296
 297          To compile this driver as a module, choose M here: the
 298          module will be called alim1535_wdt.
 299
 300          Most people will say N.
 301
 302config ALIM7101_WDT
 303        tristate "ALi M7101 PMU Computer Watchdog"
 304        depends on PCI
 305        help
 306          This is the driver for the hardware watchdog on the ALi M7101 PMU
 307          as used in the x86 Cobalt servers and also found in some
 308          SPARC Netra servers too.
 309
 310          To compile this driver as a module, choose M here: the
 311          module will be called alim7101_wdt.
 312
 313          Most people will say N.
 314
 315config GEODE_WDT
 316        tristate "AMD Geode CS5535/CS5536 Watchdog"
 317        depends on MGEODE_LX
 318        help
 319          This driver enables a watchdog capability built into the
 320          CS5535/CS5536 companion chips for the AMD Geode GX and LX
 321          processors.  This watchdog watches your kernel to make sure
 322          it doesn't freeze, and if it does, it reboots your computer after
 323          a certain amount of time.
 324
 325          You can compile this driver directly into the kernel, or use
 326          it as a module.  The module will be called geodewdt.
 327
 328config SC520_WDT
 329        tristate "AMD Elan SC520 processor Watchdog"
 330        depends on X86
 331        help
 332          This is the driver for the hardware watchdog built in to the
 333          AMD "Elan" SC520 microcomputer commonly used in embedded systems.
 334          This watchdog simply watches your kernel to make sure it doesn't
 335          freeze, and if it does, it reboots your computer after a certain
 336          amount of time.
 337
 338          You can compile this driver directly into the kernel, or use
 339          it as a module.  The module will be called sc520_wdt.
 340
 341config EUROTECH_WDT
 342        tristate "Eurotech CPU-1220/1410 Watchdog Timer"
 343        depends on X86
 344        help
 345          Enable support for the watchdog timer on the Eurotech CPU-1220 and
 346          CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
 347          information are at <http://www.eurotech.it/>.
 348
 349config IB700_WDT
 350        tristate "IB700 SBC Watchdog Timer"
 351        depends on X86
 352        ---help---
 353          This is the driver for the hardware watchdog on the IB700 Single
 354          Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
 355          simply watches your kernel to make sure it doesn't freeze, and if
 356          it does, it reboots your computer after a certain amount of time.
 357
 358          This driver is like the WDT501 driver but for slightly different hardware.
 359
 360          To compile this driver as a module, choose M here: the
 361          module will be called ib700wdt.
 362
 363          Most people will say N.
 364
 365config IBMASR
 366        tristate "IBM Automatic Server Restart"
 367        depends on X86
 368        help
 369          This is the driver for the IBM Automatic Server Restart watchdog
 370          timer built-in into some eServer xSeries machines.
 371
 372          To compile this driver as a module, choose M here: the
 373          module will be called ibmasr.
 374
 375config WAFER_WDT
 376        tristate "ICP Single Board Computer Watchdog Timer"
 377        depends on X86
 378        help
 379          This is a driver for the hardware watchdog on the ICP Single
 380          Board Computer. This driver is working on (at least) the following
 381          IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
 382
 383          To compile this driver as a module, choose M here: the
 384          module will be called wafer5823wdt.
 385
 386config I6300ESB_WDT
 387        tristate "Intel 6300ESB Timer/Watchdog"
 388        depends on X86 && PCI
 389        ---help---
 390          Hardware driver for the watchdog timer built into the Intel
 391          6300ESB controller hub.
 392
 393          To compile this driver as a module, choose M here: the
 394          module will be called i6300esb.
 395
 396config ITCO_WDT
 397        tristate "Intel TCO Timer/Watchdog"
 398        depends on (X86 || IA64) && PCI
 399        ---help---
 400          Hardware driver for the intel TCO timer based watchdog devices.
 401          These drivers are included in the Intel 82801 I/O Controller
 402          Hub family (from ICH0 up to ICH8) and in the Intel 6300ESB
 403          controller hub.
 404
 405          The TCO (Total Cost of Ownership) timer is a watchdog timer
 406          that will reboot the machine after its second expiration. The
 407          expiration time can be configured with the "heartbeat" parameter.
 408
 409          On some motherboards the driver may fail to reset the chipset's
 410          NO_REBOOT flag which prevents the watchdog from rebooting the
 411          machine. If this is the case you will get a kernel message like
 412          "failed to reset NO_REBOOT flag, reboot disabled by hardware".
 413
 414          To compile this driver as a module, choose M here: the
 415          module will be called iTCO_wdt.
 416
 417config ITCO_VENDOR_SUPPORT
 418        bool "Intel TCO Timer/Watchdog Specific Vendor Support"
 419        depends on ITCO_WDT
 420        ---help---
 421          Add vendor specific support to the intel TCO timer based watchdog
 422          devices. At this moment we only have additional support for some
 423          SuperMicro Inc. motherboards.
 424
 425config IT8712F_WDT
 426        tristate "IT8712F (Smart Guardian) Watchdog Timer"
 427        depends on X86
 428        ---help---
 429          This is the driver for the built-in watchdog timer on the IT8712F
 430          Super I/0 chipset used on many motherboards.
 431
 432          To compile this driver as a module, choose M here: the
 433          module will be called it8712f_wdt.
 434
 435config IT87_WDT
 436        tristate "IT87 Watchdog Timer"
 437        depends on X86 && EXPERIMENTAL
 438        ---help---
 439          This is the driver for the hardware watchdog on the ITE IT8716,
 440          IT8718, IT8726, IT8712(Version J,K) Super I/O chips. This watchdog
 441          simply watches your kernel to make sure it doesn't freeze, and if
 442          it does, it reboots your computer after a certain amount of time.
 443
 444          To compile this driver as a module, choose M here: the module will
 445          be called it87_wdt.
 446
 447config HP_WATCHDOG
 448        tristate "HP Proliant iLO 2 Hardware Watchdog Timer"
 449        depends on X86
 450        help
 451          A software monitoring watchdog and NMI sourcing driver. This driver
 452          will detect lockups and provide stack trace. Also, when an NMI
 453          occurs this driver will make the necessary BIOS calls to log
 454          the cause of the NMI. This is a driver that will only load on a
 455          HP ProLiant system with a minimum of iLO2 support.
 456          To compile this driver as a module, choose M here: the
 457          module will be called hpwdt.
 458
 459config SC1200_WDT
 460        tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
 461        depends on X86
 462        help
 463          This is a driver for National Semiconductor PC87307/PC97307 hardware
 464          watchdog cards as found on the SC1200. This watchdog is mainly used
 465          for power management purposes and can be used to power down the device
 466          during inactivity periods (includes interrupt activity monitoring).
 467
 468          To compile this driver as a module, choose M here: the
 469          module will be called sc1200wdt.
 470
 471          Most people will say N.
 472
 473config SCx200_WDT
 474        tristate "National Semiconductor SCx200 Watchdog"
 475        depends on SCx200 && PCI
 476        help
 477          Enable the built-in watchdog timer support on the National
 478          Semiconductor SCx200 processors.
 479
 480          If compiled as a module, it will be called scx200_wdt.
 481
 482config PC87413_WDT
 483        tristate "NS PC87413 watchdog"
 484        depends on X86
 485        ---help---
 486          This is the driver for the hardware watchdog on the PC87413 chipset
 487          This watchdog simply watches your kernel to make sure it doesn't
 488          freeze, and if it does, it reboots your computer after a certain
 489          amount of time.
 490
 491          To compile this driver as a module, choose M here: the
 492          module will be called pc87413_wdt.
 493
 494          Most people will say N.
 495
 496config RDC321X_WDT
 497        tristate "RDC R-321x SoC watchdog"
 498        depends on X86_RDC321X
 499        help
 500          This is the driver for the built in hardware watchdog
 501          in the RDC R-321x SoC.
 502
 503          To compile this driver as a module, choose M here: the
 504          module will be called rdc321x_wdt.
 505
 506config 60XX_WDT
 507        tristate "SBC-60XX Watchdog Timer"
 508        depends on X86
 509        help
 510          This driver can be used with the watchdog timer found on some
 511          single board computers, namely the 6010 PII based computer.
 512          It may well work with other cards.  It reads port 0x443 to enable
 513          and re-set the watchdog timer, and reads port 0x45 to disable
 514          the watchdog.  If you have a card that behave in similar ways,
 515          you can probably make this driver work with your card as well.
 516
 517          You can compile this driver directly into the kernel, or use
 518          it as a module.  The module will be called sbc60xxwdt.
 519
 520config SBC8360_WDT
 521        tristate "SBC8360 Watchdog Timer"
 522        depends on X86
 523        ---help---
 524
 525          This is the driver for the hardware watchdog on the SBC8360 Single
 526          Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
 527
 528          To compile this driver as a module, choose M here: the
 529          module will be called sbc8360.ko.
 530
 531          Most people will say N.
 532
 533config SBC7240_WDT
 534        tristate "SBC Nano 7240 Watchdog Timer"
 535        depends on X86_32
 536        ---help---
 537          This is the driver for the hardware watchdog found on the IEI
 538          single board computers EPIC Nano 7240 (and likely others). This
 539          watchdog simply watches your kernel to make sure it doesn't freeze,
 540          and if it does, it reboots your computer after a certain amount of
 541          time.
 542
 543          To compile this driver as a module, choose M here: the
 544          module will be called sbc7240_wdt.
 545
 546config CPU5_WDT
 547        tristate "SMA CPU5 Watchdog"
 548        depends on X86
 549        ---help---
 550          TBD.
 551          To compile this driver as a module, choose M here: the
 552          module will be called cpu5wdt.
 553
 554config SMSC37B787_WDT
 555        tristate "Winbond SMsC37B787 Watchdog Timer"
 556        depends on X86
 557        ---help---
 558          This is the driver for the hardware watchdog component on the
 559          Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
 560          from Vision Systems and maybe others.
 561
 562          This watchdog simply watches your kernel to make sure it doesn't
 563          freeze, and if it does, it reboots your computer after a certain
 564          amount of time.
 565
 566          Usually a userspace daemon will notify the kernel WDT driver that
 567          userspace is still alive, at regular intervals.
 568
 569          To compile this driver as a module, choose M here: the
 570          module will be called smsc37b787_wdt.
 571
 572          Most people will say N.
 573
 574config W83627HF_WDT
 575        tristate "W83627HF Watchdog Timer"
 576        depends on X86
 577        ---help---
 578          This is the driver for the hardware watchdog on the W83627HF chipset
 579          as used in Advantech PC-9578 and Tyan S2721-533 motherboards
 580          (and likely others).  This watchdog simply watches your kernel to
 581          make sure it doesn't freeze, and if it does, it reboots your computer
 582          after a certain amount of time.
 583
 584          To compile this driver as a module, choose M here: the
 585          module will be called w83627hf_wdt.
 586
 587          Most people will say N.
 588
 589config W83697HF_WDT
 590        tristate "W83697HF/W83697HG Watchdog Timer"
 591        depends on X86
 592        ---help---
 593          This is the driver for the hardware watchdog on the W83697HF/HG
 594          chipset as used in Dedibox/VIA motherboards (and likely others).
 595          This watchdog simply watches your kernel to make sure it doesn't
 596          freeze, and if it does, it reboots your computer after a certain
 597          amount of time.
 598
 599          To compile this driver as a module, choose M here: the
 600          module will be called w83697hf_wdt.
 601
 602          Most people will say N.
 603
 604config W83697UG_WDT
 605        tristate "W83697UG/W83697UF Watchdog Timer"
 606        depends on X86
 607        ---help---
 608          This is the driver for the hardware watchdog on the W83697UG/UF
 609          chipset as used in MSI Fuzzy CX700 VIA motherboards (and likely others).
 610          This watchdog simply watches your kernel to make sure it doesn't
 611          freeze, and if it does, it reboots your computer after a certain
 612          amount of time.
 613
 614          To compile this driver as a module, choose M here: the
 615          module will be called w83697ug_wdt.
 616
 617          Most people will say N.
 618
 619config W83877F_WDT
 620        tristate "W83877F (EMACS) Watchdog Timer"
 621        depends on X86
 622        ---help---
 623          This is the driver for the hardware watchdog on the W83877F chipset
 624          as used in EMACS PC-104 motherboards (and likely others).  This
 625          watchdog simply watches your kernel to make sure it doesn't freeze,
 626          and if it does, it reboots your computer after a certain amount of
 627          time.
 628
 629          To compile this driver as a module, choose M here: the
 630          module will be called w83877f_wdt.
 631
 632          Most people will say N.
 633
 634config W83977F_WDT
 635        tristate "W83977F (PCM-5335) Watchdog Timer"
 636        depends on X86
 637        ---help---
 638          This is the driver for the hardware watchdog on the W83977F I/O chip
 639          as used in AAEON's PCM-5335 SBC (and likely others).  This
 640          watchdog simply watches your kernel to make sure it doesn't freeze,
 641          and if it does, it reboots your computer after a certain amount of
 642          time.
 643
 644          To compile this driver as a module, choose M here: the
 645          module will be called w83977f_wdt.
 646
 647config MACHZ_WDT
 648        tristate "ZF MachZ Watchdog"
 649        depends on X86
 650        ---help---
 651          If you are using a ZF Micro MachZ processor, say Y here, otherwise
 652          N.  This is the driver for the watchdog timer built-in on that
 653          processor using ZF-Logic interface.  This watchdog simply watches
 654          your kernel to make sure it doesn't freeze, and if it does, it
 655          reboots your computer after a certain amount of time.
 656
 657          To compile this driver as a module, choose M here: the
 658          module will be called machzwd.
 659
 660config SBC_EPX_C3_WATCHDOG
 661        tristate "Winsystems SBC EPX-C3 watchdog"
 662        depends on X86
 663        ---help---
 664          This is the driver for the built-in watchdog timer on the EPX-C3
 665          Single-board computer made by Winsystems, Inc.
 666
 667          *Note*: This hardware watchdog is not probeable and thus there
 668          is no way to know if writing to its IO address will corrupt
 669          your system or have any real effect.  The only way to be sure
 670          that this driver does what you want is to make sure you
 671          are running it on an EPX-C3 from Winsystems with the watchdog
 672          timer at IO address 0x1ee and 0x1ef.  It will write to both those
 673          IO ports.  Basically, the assumption is made that if you compile
 674          this driver into your kernel and/or load it as a module, that you
 675          know what you are doing and that you are in fact running on an
 676          EPX-C3 board!
 677
 678          To compile this driver as a module, choose M here: the
 679          module will be called sbc_epx_c3.
 680
 681# M32R Architecture
 682
 683# M68K Architecture
 684
 685# M68KNOMMU Architecture
 686
 687# MIPS Architecture
 688
 689config RC32434_WDT
 690        tristate "IDT RC32434 SoC Watchdog Timer"
 691        depends on MIKROTIK_RB532
 692        help
 693          Hardware driver for the IDT RC32434 SoC built-in
 694          watchdog timer.
 695
 696          To compile this driver as a module, choose M here: the
 697          module will be called rc32434_wdt.
 698
 699config INDYDOG
 700        tristate "Indy/I2 Hardware Watchdog"
 701        depends on SGI_HAS_INDYDOG
 702        help
 703          Hardware driver for the Indy's/I2's watchdog. This is a
 704          watchdog timer that will reboot the machine after a 60 second
 705          timer expired and no process has written to /dev/watchdog during
 706          that time.
 707
 708config WDT_MTX1
 709        tristate "MTX-1 Hardware Watchdog"
 710        depends on MIPS_MTX1
 711        help
 712          Hardware driver for the MTX-1 boards. This is a watchdog timer that
 713          will reboot the machine after a 100 seconds timer expired.
 714
 715config WDT_RM9K_GPI
 716        tristate "RM9000/GPI hardware watchdog"
 717        depends on CPU_RM9000
 718        help
 719          Watchdog implementation using the GPI hardware found on
 720          PMC-Sierra RM9xxx CPUs.
 721
 722          To compile this driver as a module, choose M here: the
 723          module will be called rm9k_wdt.
 724
 725config SIBYTE_WDOG
 726        tristate "Sibyte SoC hardware watchdog"
 727        depends on CPU_SB1
 728        help
 729          Watchdog driver for the built in watchdog hardware in Sibyte
 730          SoC processors.  There are apparently two watchdog timers
 731          on such processors; this driver supports only the first one,
 732          because currently Linux only supports exporting one watchdog
 733          to userspace.
 734
 735          To compile this driver as a loadable module, choose M here.
 736          The module will be called sb_wdog.
 737
 738config AR7_WDT
 739        tristate "TI AR7 Watchdog Timer"
 740        depends on AR7
 741        help
 742          Hardware driver for the TI AR7 Watchdog Timer.
 743
 744config TXX9_WDT
 745        tristate "Toshiba TXx9 Watchdog Timer"
 746        depends on CPU_TX39XX || CPU_TX49XX
 747        help
 748          Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
 749
 750# PARISC Architecture
 751
 752# POWERPC Architecture
 753
 754config MPC5200_WDT
 755        tristate "MPC5200 Watchdog Timer"
 756        depends on PPC_MPC52xx
 757
 758config 8xxx_WDT
 759        tristate "MPC8xxx Platform Watchdog Timer"
 760        depends on PPC_8xx || PPC_83xx || PPC_86xx
 761        help
 762          This driver is for a SoC level watchdog that exists on some
 763          Freescale PowerPC processors. So far this driver supports:
 764          - MPC8xx watchdogs
 765          - MPC83xx watchdogs
 766          - MPC86xx watchdogs
 767
 768          For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
 769
 770config MV64X60_WDT
 771        tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
 772        depends on MV64X60
 773
 774config BOOKE_WDT
 775        bool "PowerPC Book-E Watchdog Timer"
 776        depends on BOOKE || 4xx
 777        ---help---
 778          Please see Documentation/watchdog/watchdog-api.txt for
 779          more information.
 780
 781# PPC64 Architecture
 782
 783config WATCHDOG_RTAS
 784        tristate "RTAS watchdog"
 785        depends on PPC_RTAS
 786        help
 787          This driver adds watchdog support for the RTAS watchdog.
 788
 789          To compile this driver as a module, choose M here. The module
 790          will be called wdrtas.
 791
 792# S390 Architecture
 793
 794config ZVM_WATCHDOG
 795        tristate "z/VM Watchdog Timer"
 796        depends on S390
 797        help
 798          IBM s/390 and zSeries machines running under z/VM 5.1 or later
 799          provide a virtual watchdog timer to their guest that cause a
 800          user define Control Program command to be executed after a
 801          timeout.
 802
 803          To compile this driver as a module, choose M here. The module
 804          will be called vmwatchdog.
 805
 806# SUPERH (sh + sh64) Architecture
 807
 808config SH_WDT
 809        tristate "SuperH Watchdog"
 810        depends on SUPERH && (CPU_SH3 || CPU_SH4)
 811        help
 812          This driver adds watchdog support for the integrated watchdog in the
 813          SuperH processors. If you have one of these processors and wish
 814          to have watchdog support enabled, say Y, otherwise say N.
 815
 816          As a side note, saying Y here will automatically boost HZ to 1000
 817          so that the timer has a chance to clear the overflow counter. On
 818          slower systems (such as the SH-2 and SH-3) this will likely yield
 819          some performance issues. As such, the WDT should be avoided here
 820          unless it is absolutely necessary.
 821
 822          To compile this driver as a module, choose M here: the
 823          module will be called shwdt.
 824
 825config SH_WDT_MMAP
 826        bool "Allow mmap of SH WDT"
 827        default n
 828        depends on SH_WDT
 829        help
 830          If you say Y here, user applications will be able to mmap the
 831          WDT/CPG registers.
 832
 833# SPARC Architecture
 834
 835# SPARC64 Architecture
 836
 837config WATCHDOG_CP1XXX
 838        tristate "CP1XXX Hardware Watchdog support"
 839        depends on SPARC64 && PCI
 840        ---help---
 841          This is the driver for the hardware watchdog timers present on
 842          Sun Microsystems CompactPCI models CP1400 and CP1500.
 843
 844          To compile this driver as a module, choose M here: the
 845          module will be called cpwatchdog.
 846
 847          If you do not have a CompactPCI model CP1400 or CP1500, or
 848          another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
 849          you should say N to this option.
 850
 851config WATCHDOG_RIO
 852        tristate "RIO Hardware Watchdog support"
 853        depends on SPARC64 && PCI
 854        help
 855          Say Y here to support the hardware watchdog capability on Sun RIO
 856          machines.  The watchdog timeout period is normally one minute but
 857          can be changed with a boot-time parameter.
 858
 859# XTENSA Architecture
 860
 861#
 862# ISA-based Watchdog Cards
 863#
 864
 865comment "ISA-based Watchdog Cards"
 866        depends on ISA
 867
 868config PCWATCHDOG
 869        tristate "Berkshire Products ISA-PC Watchdog"
 870        depends on ISA
 871        ---help---
 872          This is the driver for the Berkshire Products ISA-PC Watchdog card.
 873          This card simply watches your kernel to make sure it doesn't freeze,
 874          and if it does, it reboots your computer after a certain amount of
 875          time. This driver is like the WDT501 driver but for different
 876          hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
 877          watchdog cards can be ordered from <http://www.berkprod.com/>.
 878
 879          To compile this driver as a module, choose M here: the
 880          module will be called pcwd.
 881
 882          Most people will say N.
 883
 884config MIXCOMWD
 885        tristate "Mixcom Watchdog"
 886        depends on ISA
 887        ---help---
 888          This is a driver for the Mixcom hardware watchdog cards.  This
 889          watchdog simply watches your kernel to make sure it doesn't freeze,
 890          and if it does, it reboots your computer after a certain amount of
 891          time.
 892
 893          To compile this driver as a module, choose M here: the
 894          module will be called mixcomwd.
 895
 896          Most people will say N.
 897
 898config WDT
 899        tristate "WDT Watchdog timer"
 900        depends on ISA
 901        ---help---
 902          If you have a WDT500P or WDT501P watchdog board, say Y here,
 903          otherwise N. It is not possible to probe for this board, which means
 904          that you have to inform the kernel about the IO port and IRQ that
 905          is needed (you can do this via the io and irq parameters)
 906
 907          To compile this driver as a module, choose M here: the
 908          module will be called wdt.
 909
 910config WDT_501
 911        bool "WDT501 features"
 912        depends on WDT
 913        help
 914          Saying Y here and creating a character special file /dev/temperature
 915          with major number 10 and minor number 131 ("man mknod") will give
 916          you a thermometer inside your computer: reading from
 917          /dev/temperature yields one byte, the temperature in degrees
 918          Fahrenheit. This works only if you have a WDT501P watchdog board
 919          installed.
 920
 921          If you want to enable the Fan Tachometer on the WDT501P, then you
 922          can do this via the tachometer parameter. Only do this if you have a
 923          fan tachometer actually set up.
 924
 925#
 926# PCI-based Watchdog Cards
 927#
 928
 929comment "PCI-based Watchdog Cards"
 930        depends on PCI
 931
 932config PCIPCWATCHDOG
 933        tristate "Berkshire Products PCI-PC Watchdog"
 934        depends on PCI
 935        ---help---
 936          This is the driver for the Berkshire Products PCI-PC Watchdog card.
 937          This card simply watches your kernel to make sure it doesn't freeze,
 938          and if it does, it reboots your computer after a certain amount of
 939          time. The card can also monitor the internal temperature of the PC.
 940          More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
 941
 942          To compile this driver as a module, choose M here: the
 943          module will be called pcwd_pci.
 944
 945          Most people will say N.
 946
 947config WDTPCI
 948        tristate "PCI-WDT500/501 Watchdog timer"
 949        depends on PCI
 950        ---help---
 951          If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
 952
 953          To compile this driver as a module, choose M here: the
 954          module will be called wdt_pci.
 955
 956config WDT_501_PCI
 957        bool "PCI-WDT501 features"
 958        depends on WDTPCI
 959        help
 960          Saying Y here and creating a character special file /dev/temperature
 961          with major number 10 and minor number 131 ("man mknod") will give
 962          you a thermometer inside your computer: reading from
 963          /dev/temperature yields one byte, the temperature in degrees
 964          Fahrenheit. This works only if you have a PCI-WDT501 watchdog board
 965          installed.
 966
 967          If you want to enable the Fan Tachometer on the PCI-WDT501, then you
 968          can do this via the tachometer parameter. Only do this if you have a
 969          fan tachometer actually set up.
 970
 971#
 972# USB-based Watchdog Cards
 973#
 974
 975comment "USB-based Watchdog Cards"
 976        depends on USB
 977
 978config USBPCWATCHDOG
 979        tristate "Berkshire Products USB-PC Watchdog"
 980        depends on USB
 981        ---help---
 982          This is the driver for the Berkshire Products USB-PC Watchdog card.
 983          This card simply watches your kernel to make sure it doesn't freeze,
 984          and if it does, it reboots your computer after a certain amount of
 985          time. The card can also monitor the internal temperature of the PC.
 986          More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
 987
 988          To compile this driver as a module, choose M here: the
 989          module will be called pcwd_usb.
 990
 991          Most people will say N.
 992
 993endif # WATCHDOG
 994