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
  58config 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
  65config 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
  76config ARM_SP805_WATCHDOG
  77        tristate "ARM SP805 Watchdog"
  78        depends on ARM_AMBA
  79        help
  80          ARM Primecell SP805 Watchdog timer. This will reboot your system when
  81          the timeout is reached.
  82
  83config AT91RM9200_WATCHDOG
  84        tristate "AT91RM9200 watchdog"
  85        depends on ARCH_AT91RM9200
  86        help
  87          Watchdog timer embedded into AT91RM9200 chips. This will reboot your
  88          system when the timeout is reached.
  89
  90config AT91SAM9X_WATCHDOG
  91        tristate "AT91SAM9X / AT91CAP9 watchdog"
  92        depends on ARCH_AT91 && !ARCH_AT91RM9200
  93        help
  94          Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
  95          reboot your system when the timeout is reached.
  96
  97config 21285_WATCHDOG
  98        tristate "DC21285 watchdog"
  99        depends on FOOTBRIDGE
 100        help
 101          The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
 102          here if you wish to use this. Alternatively say M to compile the
 103          driver as a module, which will be called wdt285.
 104
 105          This driver does not work on all machines. In particular, early CATS
 106          boards have hardware problems that will cause the machine to simply
 107          lock up if the watchdog fires.
 108
 109          "If in doubt, leave it out" - say N.
 110
 111config 977_WATCHDOG
 112        tristate "NetWinder WB83C977 watchdog"
 113        depends on FOOTBRIDGE && ARCH_NETWINDER
 114        help
 115          Say Y here to include support for the WB977 watchdog included in
 116          NetWinder machines. Alternatively say M to compile the driver as
 117          a module, which will be called wdt977.
 118
 119          Not sure? It's safe to say N.
 120
 121config IXP2000_WATCHDOG
 122        tristate "IXP2000 Watchdog"
 123        depends on ARCH_IXP2000
 124        help
 125          Say Y here if to include support for the watchdog timer
 126          in the Intel IXP2000(2400, 2800, 2850) network processors.
 127          This driver can be built as a module by choosing M. The module
 128          will be called ixp2000_wdt.
 129
 130          Say N if you are unsure.
 131
 132config IXP4XX_WATCHDOG
 133        tristate "IXP4xx Watchdog"
 134        depends on ARCH_IXP4XX
 135        help
 136          Say Y here if to include support for the watchdog timer
 137          in the Intel IXP4xx network processors. This driver can
 138          be built as a module by choosing M. The module will
 139          be called ixp4xx_wdt.
 140
 141          Note: The internal IXP4xx watchdog does a soft CPU reset
 142          which doesn't reset any peripherals. There are circumstances
 143          where the watchdog will fail to reset the board correctly
 144          (e.g., if the boot ROM is in an unreadable state).
 145
 146          Say N if you are unsure.
 147
 148config KS8695_WATCHDOG
 149        tristate "KS8695 watchdog"
 150        depends on ARCH_KS8695
 151        help
 152          Watchdog timer embedded into KS8695 processor. This will reboot your
 153          system when the timeout is reached.
 154
 155config HAVE_S3C2410_WATCHDOG
 156        bool
 157        help
 158          This will include watchdog timer support for Samsung SoCs. If
 159          you want to include watchdog support for any machine, kindly
 160          select this in the respective mach-XXXX/Kconfig file.
 161
 162config S3C2410_WATCHDOG
 163        tristate "S3C2410 Watchdog"
 164        depends on ARCH_S3C2410 || HAVE_S3C2410_WATCHDOG
 165        help
 166          Watchdog timer block in the Samsung SoCs. This will reboot
 167          the system when the timer expires with the watchdog enabled.
 168
 169          The driver is limited by the speed of the system's PCLK
 170          signal, so with reasonably fast systems (PCLK around 50-66MHz)
 171          then watchdog intervals of over approximately 20seconds are
 172          unavailable.
 173
 174          The driver can be built as a module by choosing M, and will
 175          be called s3c2410_wdt
 176
 177config SA1100_WATCHDOG
 178        tristate "SA1100/PXA2xx watchdog"
 179        depends on ARCH_SA1100 || ARCH_PXA
 180        help
 181          Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
 182          reboot your system when timeout is reached.
 183
 184          NOTE: once enabled, this timer cannot be disabled.
 185
 186          To compile this driver as a module, choose M here: the
 187          module will be called sa1100_wdt.
 188
 189config MPCORE_WATCHDOG
 190        tristate "MPcore watchdog"
 191        depends on HAVE_ARM_TWD
 192        help
 193          Watchdog timer embedded into the MPcore system.
 194
 195          To compile this driver as a module, choose M here: the
 196          module will be called mpcore_wdt.
 197
 198config EP93XX_WATCHDOG
 199        tristate "EP93xx Watchdog"
 200        depends on ARCH_EP93XX
 201        help
 202          Say Y here if to include support for the watchdog timer
 203          embedded in the Cirrus Logic EP93xx family of devices.
 204
 205          To compile this driver as a module, choose M here: the
 206          module will be called ep93xx_wdt.
 207
 208config OMAP_WATCHDOG
 209        tristate "OMAP Watchdog"
 210        depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
 211        help
 212          Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.  Say 'Y'
 213          here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
 214
 215config PNX4008_WATCHDOG
 216        tristate "PNX4008 and LPC32XX Watchdog"
 217        depends on ARCH_PNX4008 || ARCH_LPC32XX
 218        help
 219          Say Y here if to include support for the watchdog timer
 220          in the PNX4008 or LPC32XX processor.
 221          This driver can be built as a module by choosing M. The module
 222          will be called pnx4008_wdt.
 223
 224          Say N if you are unsure.
 225
 226config IOP_WATCHDOG
 227        tristate "IOP Watchdog"
 228        depends on PLAT_IOP
 229        select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
 230        help
 231          Say Y here if to include support for the watchdog timer
 232          in the Intel IOP3XX & IOP13XX I/O Processors.  This driver can
 233          be built as a module by choosing M. The module will
 234          be called iop_wdt.
 235
 236          Note: The IOP13XX watchdog does an Internal Bus Reset which will
 237          affect both cores and the peripherals of the IOP.  The ATU-X
 238          and/or ATUe configuration registers will remain intact, but if
 239          operating as an Root Complex and/or Central Resource, the PCI-X
 240          and/or PCIe busses will also be reset.  THIS IS A VERY BIG HAMMER.
 241
 242config DAVINCI_WATCHDOG
 243        tristate "DaVinci watchdog"
 244        depends on ARCH_DAVINCI
 245        help
 246          Say Y here if to include support for the watchdog timer
 247          in the DaVinci DM644x/DM646x processors.
 248          To compile this driver as a module, choose M here: the
 249          module will be called davinci_wdt.
 250
 251          NOTE: once enabled, this timer cannot be disabled.
 252          Say N if you are unsure.
 253
 254config ORION_WATCHDOG
 255        tristate "Orion watchdog"
 256        depends on ARCH_ORION5X || ARCH_KIRKWOOD
 257        help
 258          Say Y here if to include support for the watchdog timer
 259          in the Marvell Orion5x and Kirkwood ARM SoCs.
 260          To compile this driver as a module, choose M here: the
 261          module will be called orion_wdt.
 262
 263config COH901327_WATCHDOG
 264        bool "ST-Ericsson COH 901 327 watchdog"
 265        depends on ARCH_U300
 266        default y if MACH_U300
 267        help
 268          Say Y here to include Watchdog timer support for the
 269          watchdog embedded into the ST-Ericsson U300 series platforms.
 270          This watchdog is used to reset the system and thus cannot be
 271          compiled as a module.
 272
 273config TWL4030_WATCHDOG
 274        tristate "TWL4030 Watchdog"
 275        depends on TWL4030_CORE
 276        help
 277          Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
 278          watchdog timer support for TWL4030 chips.
 279
 280config STMP3XXX_WATCHDOG
 281        tristate "Freescale STMP3XXX watchdog"
 282        depends on ARCH_STMP3XXX
 283        help
 284          Say Y here if to include support for the watchdog timer
 285          for the Sigmatel STMP37XX/378X SoC.
 286          To compile this driver as a module, choose M here: the
 287          module will be called stmp3xxx_wdt.
 288
 289config NUC900_WATCHDOG
 290        tristate "Nuvoton NUC900 watchdog"
 291        depends on ARCH_W90X900
 292        help
 293          Say Y here if to include support for the watchdog timer
 294          for the Nuvoton NUC900 series SoCs.
 295          To compile this driver as a module, choose M here: the
 296          module will be called nuc900_wdt.
 297
 298config ADX_WATCHDOG
 299        tristate "Avionic Design Xanthos watchdog"
 300        depends on ARCH_PXA_ADX
 301        help
 302          Say Y here if you want support for the watchdog timer on Avionic
 303          Design Xanthos boards.
 304
 305config TS72XX_WATCHDOG
 306        tristate "TS-72XX SBC Watchdog"
 307        depends on MACH_TS72XX
 308        help
 309          Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
 310          watchdog timer implemented in a external CPLD chip. Say Y here
 311          if you want to support for the watchdog timer on TS-72XX boards.
 312
 313          To compile this driver as a module, choose M here: the
 314          module will be called ts72xx_wdt.
 315
 316config MAX63XX_WATCHDOG
 317        tristate "Max63xx watchdog"
 318        depends on ARM && HAS_IOMEM
 319        help
 320          Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
 321
 322config IMX2_WDT
 323        tristate "IMX2+ Watchdog"
 324        depends on ARCH_MX2 || ARCH_MX25 || ARCH_MX3 || ARCH_MX5
 325        help
 326          This is the driver for the hardware watchdog
 327          on the Freescale IMX2 and later processors.
 328          If you have one of these processors and wish to have
 329          watchdog support enabled, say Y, otherwise say N.
 330
 331          To compile this driver as a module, choose M here: the
 332          module will be called imx2_wdt.
 333
 334# AVR32 Architecture
 335
 336config AT32AP700X_WDT
 337        tristate "AT32AP700x watchdog"
 338        depends on CPU_AT32AP700X
 339        help
 340          Watchdog timer embedded into AT32AP700x devices. This will reboot
 341          your system when the timeout is reached.
 342
 343# BLACKFIN Architecture
 344
 345config BFIN_WDT
 346        tristate "Blackfin On-Chip Watchdog Timer"
 347        depends on BLACKFIN
 348        ---help---
 349          If you say yes here you will get support for the Blackfin On-Chip
 350          Watchdog Timer. If you have one of these processors and wish to
 351          have watchdog support enabled, say Y, otherwise say N.
 352
 353          To compile this driver as a module, choose M here: the
 354          module will be called bfin_wdt.
 355
 356# CRIS Architecture
 357
 358# FRV Architecture
 359
 360# H8300 Architecture
 361
 362# X86 (i386 + ia64 + x86_64) Architecture
 363
 364config ACQUIRE_WDT
 365        tristate "Acquire SBC Watchdog Timer"
 366        depends on X86
 367        ---help---
 368          This is the driver for the hardware watchdog on Single Board
 369          Computers produced by Acquire Inc (and others). This watchdog
 370          simply watches your kernel to make sure it doesn't freeze, and if
 371          it does, it reboots your computer after a certain amount of time.
 372
 373          To compile this driver as a module, choose M here: the
 374          module will be called acquirewdt.
 375
 376          Most people will say N.
 377
 378config ADVANTECH_WDT
 379        tristate "Advantech SBC Watchdog Timer"
 380        depends on X86
 381        help
 382          If you are configuring a Linux kernel for the Advantech single-board
 383          computer, say `Y' here to support its built-in watchdog timer
 384          feature. More information can be found at
 385          <http://www.advantech.com.tw/products/>
 386
 387config ALIM1535_WDT
 388        tristate "ALi M1535 PMU Watchdog Timer"
 389        depends on X86 && PCI
 390        ---help---
 391          This is the driver for the hardware watchdog on the ALi M1535 PMU.
 392
 393          To compile this driver as a module, choose M here: the
 394          module will be called alim1535_wdt.
 395
 396          Most people will say N.
 397
 398config ALIM7101_WDT
 399        tristate "ALi M7101 PMU Computer Watchdog"
 400        depends on PCI
 401        help
 402          This is the driver for the hardware watchdog on the ALi M7101 PMU
 403          as used in the x86 Cobalt servers and also found in some
 404          SPARC Netra servers too.
 405
 406          To compile this driver as a module, choose M here: the
 407          module will be called alim7101_wdt.
 408
 409          Most people will say N.
 410
 411config F71808E_WDT
 412        tristate "Fintek F71808E, F71882FG and F71889FG Watchdog"
 413        depends on X86 && EXPERIMENTAL
 414        help
 415          This is the driver for the hardware watchdog on the Fintek
 416          F71808E, F71882FG and F71889FG Super I/O controllers.
 417
 418          You can compile this driver directly into the kernel, or use
 419          it as a module.  The module will be called f71808e_wdt.
 420
 421
 422config GEODE_WDT
 423        tristate "AMD Geode CS5535/CS5536 Watchdog"
 424        depends on CS5535_MFGPT
 425        help
 426          This driver enables a watchdog capability built into the
 427          CS5535/CS5536 companion chips for the AMD Geode GX and LX
 428          processors.  This watchdog watches your kernel to make sure
 429          it doesn't freeze, and if it does, it reboots your computer after
 430          a certain amount of time.
 431
 432          You can compile this driver directly into the kernel, or use
 433          it as a module.  The module will be called geodewdt.
 434
 435config SC520_WDT
 436        tristate "AMD Elan SC520 processor Watchdog"
 437        depends on X86
 438        help
 439          This is the driver for the hardware watchdog built in to the
 440          AMD "Elan" SC520 microcomputer commonly used in embedded systems.
 441          This watchdog simply watches your kernel to make sure it doesn't
 442          freeze, and if it does, it reboots your computer after a certain
 443          amount of time.
 444
 445          You can compile this driver directly into the kernel, or use
 446          it as a module.  The module will be called sc520_wdt.
 447
 448config SBC_FITPC2_WATCHDOG
 449        tristate "Compulab SBC-FITPC2 watchdog"
 450        depends on X86
 451        ---help---
 452          This is the driver for the built-in watchdog timer on the fit-PC2,
 453          fit-PC2i, CM-iAM single-board computers made by Compulab.
 454
 455          It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
 456          When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
 457
 458          Entering BIOS setup temporary disables watchdog operation regardless to current state,
 459          so system will not be restarted while user in BIOS setup.
 460
 461          Once watchdog was enabled the system will be restarted every
 462          "Watchdog Timer Value" period, so to prevent it user can restart or
 463          disable the watchdog.
 464
 465          To compile this driver as a module, choose M here: the
 466          module will be called sbc_fitpc2_wdt.
 467
 468          Most people will say N.
 469
 470config EUROTECH_WDT
 471        tristate "Eurotech CPU-1220/1410 Watchdog Timer"
 472        depends on X86
 473        help
 474          Enable support for the watchdog timer on the Eurotech CPU-1220 and
 475          CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
 476          information are at <http://www.eurotech.it/>.
 477
 478config IB700_WDT
 479        tristate "IB700 SBC Watchdog Timer"
 480        depends on X86
 481        ---help---
 482          This is the driver for the hardware watchdog on the IB700 Single
 483          Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
 484          simply watches your kernel to make sure it doesn't freeze, and if
 485          it does, it reboots your computer after a certain amount of time.
 486
 487          This driver is like the WDT501 driver but for slightly different hardware.
 488
 489          To compile this driver as a module, choose M here: the
 490          module will be called ib700wdt.
 491
 492          Most people will say N.
 493
 494config IBMASR
 495        tristate "IBM Automatic Server Restart"
 496        depends on X86
 497        help
 498          This is the driver for the IBM Automatic Server Restart watchdog
 499          timer built-in into some eServer xSeries machines.
 500
 501          To compile this driver as a module, choose M here: the
 502          module will be called ibmasr.
 503
 504config WAFER_WDT
 505        tristate "ICP Single Board Computer Watchdog Timer"
 506        depends on X86
 507        help
 508          This is a driver for the hardware watchdog on the ICP Single
 509          Board Computer. This driver is working on (at least) the following
 510          IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
 511
 512          To compile this driver as a module, choose M here: the
 513          module will be called wafer5823wdt.
 514
 515config I6300ESB_WDT
 516        tristate "Intel 6300ESB Timer/Watchdog"
 517        depends on X86 && PCI
 518        ---help---
 519          Hardware driver for the watchdog timer built into the Intel
 520          6300ESB controller hub.
 521
 522          To compile this driver as a module, choose M here: the
 523          module will be called i6300esb.
 524
 525config ITCO_WDT
 526        tristate "Intel TCO Timer/Watchdog"
 527        depends on (X86 || IA64) && PCI
 528        ---help---
 529          Hardware driver for the intel TCO timer based watchdog devices.
 530          These drivers are included in the Intel 82801 I/O Controller
 531          Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
 532          controller hub.
 533
 534          The TCO (Total Cost of Ownership) timer is a watchdog timer
 535          that will reboot the machine after its second expiration. The
 536          expiration time can be configured with the "heartbeat" parameter.
 537
 538          On some motherboards the driver may fail to reset the chipset's
 539          NO_REBOOT flag which prevents the watchdog from rebooting the
 540          machine. If this is the case you will get a kernel message like
 541          "failed to reset NO_REBOOT flag, reboot disabled by hardware".
 542
 543          To compile this driver as a module, choose M here: the
 544          module will be called iTCO_wdt.
 545
 546config ITCO_VENDOR_SUPPORT
 547        bool "Intel TCO Timer/Watchdog Specific Vendor Support"
 548        depends on ITCO_WDT
 549        ---help---
 550          Add vendor specific support to the intel TCO timer based watchdog
 551          devices. At this moment we only have additional support for some
 552          SuperMicro Inc. motherboards.
 553
 554config IT8712F_WDT
 555        tristate "IT8712F (Smart Guardian) Watchdog Timer"
 556        depends on X86
 557        ---help---
 558          This is the driver for the built-in watchdog timer on the IT8712F
 559          Super I/0 chipset used on many motherboards.
 560
 561          If the driver does not work, then make sure that the game port in
 562          the BIOS is enabled.
 563
 564          To compile this driver as a module, choose M here: the
 565          module will be called it8712f_wdt.
 566
 567config IT87_WDT
 568        tristate "IT87 Watchdog Timer"
 569        depends on X86 && EXPERIMENTAL
 570        ---help---
 571          This is the driver for the hardware watchdog on the ITE IT8702,
 572          IT8712, IT8716, IT8718, IT8720, IT8726, IT8712 Super I/O chips.
 573          This watchdog simply watches your kernel to make sure it doesn't
 574          freeze, and if it does, it reboots your computer after a certain
 575          amount of time.
 576
 577          To compile this driver as a module, choose M here: the module will
 578          be called it87_wdt.
 579
 580config HP_WATCHDOG
 581        tristate "HP Proliant iLO2+ Hardware Watchdog Timer"
 582        depends on X86
 583        help
 584          A software monitoring watchdog and NMI sourcing driver. This driver
 585          will detect lockups and provide a stack trace. This is a driver that
 586          will only load on a HP ProLiant system with a minimum of iLO2 support.
 587          To compile this driver as a module, choose M here: the module will be
 588          called hpwdt.
 589
 590config HPWDT_NMI_DECODING
 591        bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
 592        depends on HP_WATCHDOG
 593        help
 594          When an NMI occurs this feature will make the necessary BIOS calls to
 595          log the cause of the NMI.
 596
 597config SC1200_WDT
 598        tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
 599        depends on X86
 600        help
 601          This is a driver for National Semiconductor PC87307/PC97307 hardware
 602          watchdog cards as found on the SC1200. This watchdog is mainly used
 603          for power management purposes and can be used to power down the device
 604          during inactivity periods (includes interrupt activity monitoring).
 605
 606          To compile this driver as a module, choose M here: the
 607          module will be called sc1200wdt.
 608
 609          Most people will say N.
 610
 611config SCx200_WDT
 612        tristate "National Semiconductor SCx200 Watchdog"
 613        depends on SCx200 && PCI
 614        help
 615          Enable the built-in watchdog timer support on the National
 616          Semiconductor SCx200 processors.
 617
 618          If compiled as a module, it will be called scx200_wdt.
 619
 620config PC87413_WDT
 621        tristate "NS PC87413 watchdog"
 622        depends on X86
 623        ---help---
 624          This is the driver for the hardware watchdog on the PC87413 chipset
 625          This watchdog simply watches your kernel to make sure it doesn't
 626          freeze, and if it does, it reboots your computer after a certain
 627          amount of time.
 628
 629          To compile this driver as a module, choose M here: the
 630          module will be called pc87413_wdt.
 631
 632          Most people will say N.
 633
 634config RDC321X_WDT
 635        tristate "RDC R-321x SoC watchdog"
 636        depends on X86_RDC321X
 637        help
 638          This is the driver for the built in hardware watchdog
 639          in the RDC R-321x SoC.
 640
 641          To compile this driver as a module, choose M here: the
 642          module will be called rdc321x_wdt.
 643
 644config 60XX_WDT
 645        tristate "SBC-60XX Watchdog Timer"
 646        depends on X86
 647        help
 648          This driver can be used with the watchdog timer found on some
 649          single board computers, namely the 6010 PII based computer.
 650          It may well work with other cards.  It reads port 0x443 to enable
 651          and re-set the watchdog timer, and reads port 0x45 to disable
 652          the watchdog.  If you have a card that behave in similar ways,
 653          you can probably make this driver work with your card as well.
 654
 655          You can compile this driver directly into the kernel, or use
 656          it as a module.  The module will be called sbc60xxwdt.
 657
 658config SBC8360_WDT
 659        tristate "SBC8360 Watchdog Timer"
 660        depends on X86
 661        ---help---
 662
 663          This is the driver for the hardware watchdog on the SBC8360 Single
 664          Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
 665
 666          To compile this driver as a module, choose M here: the
 667          module will be called sbc8360.
 668
 669          Most people will say N.
 670
 671config SBC7240_WDT
 672        tristate "SBC Nano 7240 Watchdog Timer"
 673        depends on X86_32
 674        ---help---
 675          This is the driver for the hardware watchdog found on the IEI
 676          single board computers EPIC Nano 7240 (and likely others). This
 677          watchdog simply watches your kernel to make sure it doesn't freeze,
 678          and if it does, it reboots your computer after a certain amount of
 679          time.
 680
 681          To compile this driver as a module, choose M here: the
 682          module will be called sbc7240_wdt.
 683
 684config CPU5_WDT
 685        tristate "SMA CPU5 Watchdog"
 686        depends on X86
 687        ---help---
 688          TBD.
 689          To compile this driver as a module, choose M here: the
 690          module will be called cpu5wdt.
 691
 692config SMSC_SCH311X_WDT
 693        tristate "SMSC SCH311X Watchdog Timer"
 694        depends on X86
 695        ---help---
 696          This is the driver for the hardware watchdog timer on the
 697          SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
 698          (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
 699          serial ports).
 700
 701          To compile this driver as a module, choose M here: the
 702          module will be called sch311x_wdt.
 703
 704config SMSC37B787_WDT
 705        tristate "Winbond SMsC37B787 Watchdog Timer"
 706        depends on X86
 707        ---help---
 708          This is the driver for the hardware watchdog component on the
 709          Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
 710          from Vision Systems and maybe others.
 711
 712          This watchdog simply watches your kernel to make sure it doesn't
 713          freeze, and if it does, it reboots your computer after a certain
 714          amount of time.
 715
 716          Usually a userspace daemon will notify the kernel WDT driver that
 717          userspace is still alive, at regular intervals.
 718
 719          To compile this driver as a module, choose M here: the
 720          module will be called smsc37b787_wdt.
 721
 722          Most people will say N.
 723
 724config W83627HF_WDT
 725        tristate "W83627HF Watchdog Timer"
 726        depends on X86
 727        ---help---
 728          This is the driver for the hardware watchdog on the W83627HF chipset
 729          as used in Advantech PC-9578 and Tyan S2721-533 motherboards
 730          (and likely others).  This watchdog simply watches your kernel to
 731          make sure it doesn't freeze, and if it does, it reboots your computer
 732          after a certain amount of time.
 733
 734          To compile this driver as a module, choose M here: the
 735          module will be called w83627hf_wdt.
 736
 737          Most people will say N.
 738
 739config W83697HF_WDT
 740        tristate "W83697HF/W83697HG Watchdog Timer"
 741        depends on X86
 742        ---help---
 743          This is the driver for the hardware watchdog on the W83697HF/HG
 744          chipset as used in Dedibox/VIA motherboards (and likely others).
 745          This watchdog simply watches your kernel to make sure it doesn't
 746          freeze, and if it does, it reboots your computer after a certain
 747          amount of time.
 748
 749          To compile this driver as a module, choose M here: the
 750          module will be called w83697hf_wdt.
 751
 752          Most people will say N.
 753
 754config W83697UG_WDT
 755        tristate "W83697UG/W83697UF Watchdog Timer"
 756        depends on X86
 757        ---help---
 758          This is the driver for the hardware watchdog on the W83697UG/UF
 759          chipset as used in MSI Fuzzy CX700 VIA motherboards (and likely others).
 760          This watchdog simply watches your kernel to make sure it doesn't
 761          freeze, and if it does, it reboots your computer after a certain
 762          amount of time.
 763
 764          To compile this driver as a module, choose M here: the
 765          module will be called w83697ug_wdt.
 766
 767          Most people will say N.
 768
 769config W83877F_WDT
 770        tristate "W83877F (EMACS) Watchdog Timer"
 771        depends on X86
 772        ---help---
 773          This is the driver for the hardware watchdog on the W83877F chipset
 774          as used in EMACS PC-104 motherboards (and likely others).  This
 775          watchdog simply watches your kernel to make sure it doesn't freeze,
 776          and if it does, it reboots your computer after a certain amount of
 777          time.
 778
 779          To compile this driver as a module, choose M here: the
 780          module will be called w83877f_wdt.
 781
 782          Most people will say N.
 783
 784config W83977F_WDT
 785        tristate "W83977F (PCM-5335) Watchdog Timer"
 786        depends on X86
 787        ---help---
 788          This is the driver for the hardware watchdog on the W83977F I/O chip
 789          as used in AAEON's PCM-5335 SBC (and likely others).  This
 790          watchdog simply watches your kernel to make sure it doesn't freeze,
 791          and if it does, it reboots your computer after a certain amount of
 792          time.
 793
 794          To compile this driver as a module, choose M here: the
 795          module will be called w83977f_wdt.
 796
 797config MACHZ_WDT
 798        tristate "ZF MachZ Watchdog"
 799        depends on X86
 800        ---help---
 801          If you are using a ZF Micro MachZ processor, say Y here, otherwise
 802          N.  This is the driver for the watchdog timer built-in on that
 803          processor using ZF-Logic interface.  This watchdog simply watches
 804          your kernel to make sure it doesn't freeze, and if it does, it
 805          reboots your computer after a certain amount of time.
 806
 807          To compile this driver as a module, choose M here: the
 808          module will be called machzwd.
 809
 810config SBC_EPX_C3_WATCHDOG
 811        tristate "Winsystems SBC EPX-C3 watchdog"
 812        depends on X86
 813        ---help---
 814          This is the driver for the built-in watchdog timer on the EPX-C3
 815          Single-board computer made by Winsystems, Inc.
 816
 817          *Note*: This hardware watchdog is not probeable and thus there
 818          is no way to know if writing to its IO address will corrupt
 819          your system or have any real effect.  The only way to be sure
 820          that this driver does what you want is to make sure you
 821          are running it on an EPX-C3 from Winsystems with the watchdog
 822          timer at IO address 0x1ee and 0x1ef.  It will write to both those
 823          IO ports.  Basically, the assumption is made that if you compile
 824          this driver into your kernel and/or load it as a module, that you
 825          know what you are doing and that you are in fact running on an
 826          EPX-C3 board!
 827
 828          To compile this driver as a module, choose M here: the
 829          module will be called sbc_epx_c3.
 830
 831# M32R Architecture
 832
 833# M68K Architecture
 834
 835# M68KNOMMU Architecture
 836
 837# MIPS Architecture
 838
 839config BCM47XX_WDT
 840        tristate "Broadcom BCM47xx Watchdog Timer"
 841        depends on BCM47XX
 842        help
 843          Hardware driver for the Broadcom BCM47xx Watchog Timer.
 844
 845config RC32434_WDT
 846        tristate "IDT RC32434 SoC Watchdog Timer"
 847        depends on MIKROTIK_RB532
 848        help
 849          Hardware driver for the IDT RC32434 SoC built-in
 850          watchdog timer.
 851
 852          To compile this driver as a module, choose M here: the
 853          module will be called rc32434_wdt.
 854
 855config INDYDOG
 856        tristate "Indy/I2 Hardware Watchdog"
 857        depends on SGI_HAS_INDYDOG
 858        help
 859          Hardware driver for the Indy's/I2's watchdog. This is a
 860          watchdog timer that will reboot the machine after a 60 second
 861          timer expired and no process has written to /dev/watchdog during
 862          that time.
 863
 864config WDT_MTX1
 865        tristate "MTX-1 Hardware Watchdog"
 866        depends on MIPS_MTX1
 867        help
 868          Hardware driver for the MTX-1 boards. This is a watchdog timer that
 869          will reboot the machine after a 100 seconds timer expired.
 870
 871config PNX833X_WDT
 872        tristate "PNX833x Hardware Watchdog"
 873        depends on SOC_PNX8335
 874        help
 875          Hardware driver for the PNX833x's watchdog. This is a
 876          watchdog timer that will reboot the machine after a programable
 877          timer has expired and no process has written to /dev/watchdog during
 878          that time.
 879
 880config SIBYTE_WDOG
 881        tristate "Sibyte SoC hardware watchdog"
 882        depends on CPU_SB1
 883        help
 884          Watchdog driver for the built in watchdog hardware in Sibyte
 885          SoC processors.  There are apparently two watchdog timers
 886          on such processors; this driver supports only the first one,
 887          because currently Linux only supports exporting one watchdog
 888          to userspace.
 889
 890          To compile this driver as a loadable module, choose M here.
 891          The module will be called sb_wdog.
 892
 893config AR7_WDT
 894        tristate "TI AR7 Watchdog Timer"
 895        depends on AR7
 896        help
 897          Hardware driver for the TI AR7 Watchdog Timer.
 898
 899config TXX9_WDT
 900        tristate "Toshiba TXx9 Watchdog Timer"
 901        depends on CPU_TX39XX || CPU_TX49XX
 902        help
 903          Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
 904
 905config OCTEON_WDT
 906        tristate "Cavium OCTEON SOC family Watchdog Timer"
 907        depends on CPU_CAVIUM_OCTEON
 908        default y
 909        select EXPORT_UASM if OCTEON_WDT = m
 910        help
 911          Hardware driver for OCTEON's on chip watchdog timer.
 912          Enables the watchdog for all cores running Linux. It
 913          installs a NMI handler and pokes the watchdog based on an
 914          interrupt.  On first expiration of the watchdog, the
 915          interrupt handler pokes it.  The second expiration causes an
 916          NMI that prints a message. The third expiration causes a
 917          global soft reset.
 918
 919          When userspace has /dev/watchdog open, no poking is done
 920          from the first interrupt, it is then only poked when the
 921          device is written.
 922
 923config BCM63XX_WDT
 924        tristate "Broadcom BCM63xx hardware watchdog"
 925        depends on BCM63XX
 926        help
 927          Watchdog driver for the built in watchdog hardware in Broadcom
 928          BCM63xx SoC.
 929
 930          To compile this driver as a loadable module, choose M here.
 931          The module will be called bcm63xx_wdt.
 932
 933# PARISC Architecture
 934
 935# POWERPC Architecture
 936
 937config GEF_WDT
 938        tristate "GE Watchdog Timer"
 939        depends on GEF_SBC610 || GEF_SBC310 || GEF_PPC9A
 940        ---help---
 941          Watchdog timer found in a number of GE single board computers.
 942
 943config MPC5200_WDT
 944        bool "MPC52xx Watchdog Timer"
 945        depends on PPC_MPC52xx
 946        help
 947          Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
 948
 949config 8xxx_WDT
 950        tristate "MPC8xxx Platform Watchdog Timer"
 951        depends on PPC_8xx || PPC_83xx || PPC_86xx
 952        help
 953          This driver is for a SoC level watchdog that exists on some
 954          Freescale PowerPC processors. So far this driver supports:
 955          - MPC8xx watchdogs
 956          - MPC83xx watchdogs
 957          - MPC86xx watchdogs
 958
 959          For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
 960
 961config MV64X60_WDT
 962        tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
 963        depends on MV64X60
 964
 965config PIKA_WDT
 966        tristate "PIKA FPGA Watchdog"
 967        depends on WARP
 968        default y
 969        help
 970          This enables the watchdog in the PIKA FPGA. Currently used on
 971          the Warp platform.
 972
 973config BOOKE_WDT
 974        tristate "PowerPC Book-E Watchdog Timer"
 975        depends on BOOKE || 4xx
 976        ---help---
 977          Watchdog driver for PowerPC Book-E chips, such as the Freescale
 978          MPC85xx SOCs and the IBM PowerPC 440.
 979
 980          Please see Documentation/watchdog/watchdog-api.txt for
 981          more information.
 982
 983config BOOKE_WDT_DEFAULT_TIMEOUT
 984        int "PowerPC Book-E Watchdog Timer Default Timeout"
 985        depends on BOOKE_WDT
 986        default 38 if FSL_BOOKE
 987        range 0 63 if FSL_BOOKE
 988        default 3 if !FSL_BOOKE
 989        range 0 3 if !FSL_BOOKE
 990        help
 991          Select the default watchdog timer period to be used by the PowerPC
 992          Book-E watchdog driver.  A watchdog "event" occurs when the bit
 993          position represented by this number transitions from zero to one.
 994
 995          For Freescale Book-E processors, this is a number between 0 and 63.
 996          For other Book-E processors, this is a number between 0 and 3.
 997
 998          The value can be overidden by the wdt_period command-line parameter.
 999
1000# PPC64 Architecture
1001
1002config WATCHDOG_RTAS
1003        tristate "RTAS watchdog"
1004        depends on PPC_RTAS
1005        help
1006          This driver adds watchdog support for the RTAS watchdog.
1007
1008          To compile this driver as a module, choose M here. The module
1009          will be called wdrtas.
1010
1011# S390 Architecture
1012
1013config ZVM_WATCHDOG
1014        tristate "z/VM Watchdog Timer"
1015        depends on S390
1016        help
1017          IBM s/390 and zSeries machines running under z/VM 5.1 or later
1018          provide a virtual watchdog timer to their guest that cause a
1019          user define Control Program command to be executed after a
1020          timeout.
1021
1022          To compile this driver as a module, choose M here. The module
1023          will be called vmwatchdog.
1024
1025# SUPERH (sh + sh64) Architecture
1026
1027config SH_WDT
1028        tristate "SuperH Watchdog"
1029        depends on SUPERH && (CPU_SH3 || CPU_SH4)
1030        help
1031          This driver adds watchdog support for the integrated watchdog in the
1032          SuperH processors. If you have one of these processors and wish
1033          to have watchdog support enabled, say Y, otherwise say N.
1034
1035          As a side note, saying Y here will automatically boost HZ to 1000
1036          so that the timer has a chance to clear the overflow counter. On
1037          slower systems (such as the SH-2 and SH-3) this will likely yield
1038          some performance issues. As such, the WDT should be avoided here
1039          unless it is absolutely necessary.
1040
1041          To compile this driver as a module, choose M here: the
1042          module will be called shwdt.
1043
1044config SH_WDT_MMAP
1045        bool "Allow mmap of SH WDT"
1046        default n
1047        depends on SH_WDT
1048        help
1049          If you say Y here, user applications will be able to mmap the
1050          WDT/CPG registers.
1051
1052# SPARC Architecture
1053
1054# SPARC64 Architecture
1055
1056config WATCHDOG_CP1XXX
1057        tristate "CP1XXX Hardware Watchdog support"
1058        depends on SPARC64 && PCI
1059        ---help---
1060          This is the driver for the hardware watchdog timers present on
1061          Sun Microsystems CompactPCI models CP1400 and CP1500.
1062
1063          To compile this driver as a module, choose M here: the
1064          module will be called cpwatchdog.
1065
1066          If you do not have a CompactPCI model CP1400 or CP1500, or
1067          another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1068          you should say N to this option.
1069
1070config WATCHDOG_RIO
1071        tristate "RIO Hardware Watchdog support"
1072        depends on SPARC64 && PCI
1073        help
1074          Say Y here to support the hardware watchdog capability on Sun RIO
1075          machines.  The watchdog timeout period is normally one minute but
1076          can be changed with a boot-time parameter.
1077
1078# XTENSA Architecture
1079
1080#
1081# ISA-based Watchdog Cards
1082#
1083
1084comment "ISA-based Watchdog Cards"
1085        depends on ISA
1086
1087config PCWATCHDOG
1088        tristate "Berkshire Products ISA-PC Watchdog"
1089        depends on ISA
1090        ---help---
1091          This is the driver for the Berkshire Products ISA-PC Watchdog card.
1092          This card simply watches your kernel to make sure it doesn't freeze,
1093          and if it does, it reboots your computer after a certain amount of
1094          time. This driver is like the WDT501 driver but for different
1095          hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1096          watchdog cards can be ordered from <http://www.berkprod.com/>.
1097
1098          To compile this driver as a module, choose M here: the
1099          module will be called pcwd.
1100
1101          Most people will say N.
1102
1103config MIXCOMWD
1104        tristate "Mixcom Watchdog"
1105        depends on ISA
1106        ---help---
1107          This is a driver for the Mixcom hardware watchdog cards.  This
1108          watchdog simply watches your kernel to make sure it doesn't freeze,
1109          and if it does, it reboots your computer after a certain amount of
1110          time.
1111
1112          To compile this driver as a module, choose M here: the
1113          module will be called mixcomwd.
1114
1115          Most people will say N.
1116
1117config WDT
1118        tristate "WDT Watchdog timer"
1119        depends on ISA
1120        ---help---
1121          If you have a WDT500P or WDT501P watchdog board, say Y here,
1122          otherwise N. It is not possible to probe for this board, which means
1123          that you have to inform the kernel about the IO port and IRQ that
1124          is needed (you can do this via the io and irq parameters)
1125
1126          To compile this driver as a module, choose M here: the
1127          module will be called wdt.
1128
1129#
1130# PCI-based Watchdog Cards
1131#
1132
1133comment "PCI-based Watchdog Cards"
1134        depends on PCI
1135
1136config PCIPCWATCHDOG
1137        tristate "Berkshire Products PCI-PC Watchdog"
1138        depends on PCI
1139        ---help---
1140          This is the driver for the Berkshire Products PCI-PC Watchdog card.
1141          This card simply watches your kernel to make sure it doesn't freeze,
1142          and if it does, it reboots your computer after a certain amount of
1143          time. The card can also monitor the internal temperature of the PC.
1144          More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1145
1146          To compile this driver as a module, choose M here: the
1147          module will be called pcwd_pci.
1148
1149          Most people will say N.
1150
1151config WDTPCI
1152        tristate "PCI-WDT500/501 Watchdog timer"
1153        depends on PCI
1154        ---help---
1155          If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1156
1157          If you have a PCI-WDT501 watchdog board then you can enable the
1158          temperature sensor by setting the type parameter to 501.
1159
1160          If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1161          can do this via the tachometer parameter. Only do this if you have a
1162          fan tachometer actually set up.
1163
1164          To compile this driver as a module, choose M here: the
1165          module will be called wdt_pci.
1166
1167#
1168# USB-based Watchdog Cards
1169#
1170
1171comment "USB-based Watchdog Cards"
1172        depends on USB
1173
1174config USBPCWATCHDOG
1175        tristate "Berkshire Products USB-PC Watchdog"
1176        depends on USB
1177        ---help---
1178          This is the driver for the Berkshire Products USB-PC Watchdog card.
1179          This card simply watches your kernel to make sure it doesn't freeze,
1180          and if it does, it reboots your computer after a certain amount of
1181          time. The card can also monitor the internal temperature of the PC.
1182          More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1183
1184          To compile this driver as a module, choose M here: the
1185          module will be called pcwd_usb.
1186
1187          Most people will say N.
1188
1189endif # WATCHDOG
1190