drivers/char/watchdog/Kconfig

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