linux/Documentation/watchdog/watchdog-parameters.txt
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   1This file provides information on the module parameters of many of
   2the Linux watchdog drivers.  Watchdog driver parameter specs should
   3be listed here unless the driver has its own driver-specific information
   4file.
   5
   6
   7See Documentation/kernel-parameters.txt for information on
   8providing kernel parameters for builtin drivers versus loadable
   9modules.
  10
  11
  12-------------------------------------------------
  13acquirewdt:
  14wdt_stop: Acquire WDT 'stop' io port (default 0x43)
  15wdt_start: Acquire WDT 'start' io port (default 0x443)
  16nowayout: Watchdog cannot be stopped once started
  17        (default=kernel config parameter)
  18-------------------------------------------------
  19advantechwdt:
  20wdt_stop: Advantech WDT 'stop' io port (default 0x443)
  21wdt_start: Advantech WDT 'start' io port (default 0x443)
  22timeout: Watchdog timeout in seconds. 1<= timeout <=63, default=60.
  23nowayout: Watchdog cannot be stopped once started
  24        (default=kernel config parameter)
  25-------------------------------------------------
  26alim1535_wdt:
  27timeout: Watchdog timeout in seconds. (0 < timeout < 18000, default=60
  28nowayout: Watchdog cannot be stopped once started
  29        (default=kernel config parameter)
  30-------------------------------------------------
  31alim7101_wdt:
  32timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30
  33use_gpio: Use the gpio watchdog (required by old cobalt boards).
  34        default=0/off/no
  35nowayout: Watchdog cannot be stopped once started
  36        (default=kernel config parameter)
  37-------------------------------------------------
  38ar7_wdt:
  39margin: Watchdog margin in seconds (default=60)
  40nowayout: Disable watchdog shutdown on close
  41        (default=kernel config parameter)
  42-------------------------------------------------
  43at32ap700x_wdt:
  44timeout: Timeout value. Limited to be 1 or 2 seconds. (default=2)
  45nowayout: Watchdog cannot be stopped once started
  46        (default=kernel config parameter)
  47-------------------------------------------------
  48at91rm9200_wdt:
  49wdt_time: Watchdog time in seconds. (default=5)
  50nowayout: Watchdog cannot be stopped once started
  51        (default=kernel config parameter)
  52-------------------------------------------------
  53at91sam9_wdt:
  54heartbeat: Watchdog heartbeats in seconds. (default = 15)
  55nowayout: Watchdog cannot be stopped once started
  56        (default=kernel config parameter)
  57-------------------------------------------------
  58bcm47xx_wdt:
  59wdt_time: Watchdog time in seconds. (default=30)
  60nowayout: Watchdog cannot be stopped once started
  61        (default=kernel config parameter)
  62-------------------------------------------------
  63bfin_wdt:
  64timeout: Watchdog timeout in seconds. (1<=timeout<=((2^32)/SCLK), default=20)
  65nowayout: Watchdog cannot be stopped once started
  66        (default=kernel config parameter)
  67-------------------------------------------------
  68coh901327_wdt:
  69margin: Watchdog margin in seconds (default 60s)
  70-------------------------------------------------
  71cpu5wdt:
  72port: base address of watchdog card, default is 0x91
  73verbose: be verbose, default is 0 (no)
  74ticks: count down ticks, default is 10000
  75-------------------------------------------------
  76cpwd:
  77wd0_timeout: Default watchdog0 timeout in 1/10secs
  78wd1_timeout: Default watchdog1 timeout in 1/10secs
  79wd2_timeout: Default watchdog2 timeout in 1/10secs
  80-------------------------------------------------
  81da9052wdt:
  82timeout: Watchdog timeout in seconds. 2<= timeout <=131, default=2.048s
  83nowayout: Watchdog cannot be stopped once started
  84        (default=kernel config parameter)
  85-------------------------------------------------
  86davinci_wdt:
  87heartbeat: Watchdog heartbeat period in seconds from 1 to 600, default 60
  88-------------------------------------------------
  89ep93xx_wdt:
  90nowayout: Watchdog cannot be stopped once started
  91timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=TBD)
  92-------------------------------------------------
  93eurotechwdt:
  94nowayout: Watchdog cannot be stopped once started
  95        (default=kernel config parameter)
  96io: Eurotech WDT io port (default=0x3f0)
  97irq: Eurotech WDT irq (default=10)
  98ev: Eurotech WDT event type (default is `int')
  99-------------------------------------------------
 100gef_wdt:
 101nowayout: Watchdog cannot be stopped once started
 102        (default=kernel config parameter)
 103-------------------------------------------------
 104geodewdt:
 105timeout: Watchdog timeout in seconds. 1<= timeout <=131, default=60.
 106nowayout: Watchdog cannot be stopped once started
 107        (default=kernel config parameter)
 108-------------------------------------------------
 109i6300esb:
 110heartbeat: Watchdog heartbeat in seconds. (1<heartbeat<2046, default=30)
 111nowayout: Watchdog cannot be stopped once started
 112        (default=kernel config parameter)
 113-------------------------------------------------
 114iTCO_wdt:
 115heartbeat: Watchdog heartbeat in seconds.
 116        (2<heartbeat<39 (TCO v1) or 613 (TCO v2), default=30)
 117nowayout: Watchdog cannot be stopped once started
 118        (default=kernel config parameter)
 119-------------------------------------------------
 120iTCO_vendor_support:
 121vendorsupport: iTCO vendor specific support mode, default=0 (none),
 122        1=SuperMicro Pent3, 2=SuperMicro Pent4+, 911=Broken SMI BIOS
 123-------------------------------------------------
 124ib700wdt:
 125timeout: Watchdog timeout in seconds. 0<= timeout <=30, default=30.
 126nowayout: Watchdog cannot be stopped once started
 127        (default=kernel config parameter)
 128-------------------------------------------------
 129ibmasr:
 130nowayout: Watchdog cannot be stopped once started
 131        (default=kernel config parameter)
 132-------------------------------------------------
 133imx2_wdt:
 134timeout: Watchdog timeout in seconds (default 60 s)
 135nowayout: Watchdog cannot be stopped once started
 136        (default=kernel config parameter)
 137-------------------------------------------------
 138indydog:
 139nowayout: Watchdog cannot be stopped once started
 140        (default=kernel config parameter)
 141-------------------------------------------------
 142iop_wdt:
 143nowayout: Watchdog cannot be stopped once started
 144        (default=kernel config parameter)
 145-------------------------------------------------
 146it8712f_wdt:
 147margin: Watchdog margin in seconds (default 60)
 148nowayout: Disable watchdog shutdown on close
 149        (default=kernel config parameter)
 150-------------------------------------------------
 151it87_wdt:
 152nogameport: Forbid the activation of game port, default=0
 153exclusive: Watchdog exclusive device open, default=1
 154timeout: Watchdog timeout in seconds, default=60
 155testmode: Watchdog test mode (1 = no reboot), default=0
 156nowayout: Watchdog cannot be stopped once started
 157        (default=kernel config parameter)
 158-------------------------------------------------
 159ixp2000_wdt:
 160heartbeat: Watchdog heartbeat in seconds (default 60s)
 161nowayout: Watchdog cannot be stopped once started
 162        (default=kernel config parameter)
 163-------------------------------------------------
 164ixp4xx_wdt:
 165heartbeat: Watchdog heartbeat in seconds (default 60s)
 166nowayout: Watchdog cannot be stopped once started
 167        (default=kernel config parameter)
 168-------------------------------------------------
 169ks8695_wdt:
 170wdt_time: Watchdog time in seconds. (default=5)
 171nowayout: Watchdog cannot be stopped once started
 172        (default=kernel config parameter)
 173-------------------------------------------------
 174machzwd:
 175nowayout: Watchdog cannot be stopped once started
 176        (default=kernel config parameter)
 177action: after watchdog resets, generate:
 178        0 = RESET(*)  1 = SMI  2 = NMI  3 = SCI
 179-------------------------------------------------
 180max63xx_wdt:
 181heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 60
 182nowayout: Watchdog cannot be stopped once started
 183        (default=kernel config parameter)
 184nodelay: Force selection of a timeout setting without initial delay
 185        (max6373/74 only, default=0)
 186-------------------------------------------------
 187mixcomwd:
 188nowayout: Watchdog cannot be stopped once started
 189        (default=kernel config parameter)
 190-------------------------------------------------
 191mpc8xxx_wdt:
 192timeout: Watchdog timeout in ticks. (0<timeout<65536, default=65535)
 193reset: Watchdog Interrupt/Reset Mode. 0 = interrupt, 1 = reset
 194nowayout: Watchdog cannot be stopped once started
 195        (default=kernel config parameter)
 196-------------------------------------------------
 197mpcore_wdt:
 198mpcore_margin: MPcore timer margin in seconds.
 199        (0 < mpcore_margin < 65536, default=60)
 200nowayout: Watchdog cannot be stopped once started
 201        (default=kernel config parameter)
 202mpcore_noboot: MPcore watchdog action, set to 1 to ignore reboots,
 203        0 to reboot (default=0
 204-------------------------------------------------
 205mv64x60_wdt:
 206nowayout: Watchdog cannot be stopped once started
 207        (default=kernel config parameter)
 208-------------------------------------------------
 209nuc900_wdt:
 210heartbeat: Watchdog heartbeats in seconds.
 211        (default = 15)
 212nowayout: Watchdog cannot be stopped once started
 213        (default=kernel config parameter)
 214-------------------------------------------------
 215omap_wdt:
 216timer_margin: initial watchdog timeout (in seconds)
 217-------------------------------------------------
 218orion_wdt:
 219heartbeat: Initial watchdog heartbeat in seconds
 220nowayout: Watchdog cannot be stopped once started
 221        (default=kernel config parameter)
 222-------------------------------------------------
 223pc87413_wdt:
 224io: pc87413 WDT I/O port (default: io).
 225timeout: Watchdog timeout in minutes (default=timeout).
 226nowayout: Watchdog cannot be stopped once started
 227        (default=kernel config parameter)
 228-------------------------------------------------
 229pika_wdt:
 230heartbeat: Watchdog heartbeats in seconds. (default = 15)
 231nowayout: Watchdog cannot be stopped once started
 232        (default=kernel config parameter)
 233-------------------------------------------------
 234pnx4008_wdt:
 235heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 19
 236nowayout: Set to 1 to keep watchdog running after device release
 237-------------------------------------------------
 238pnx833x_wdt:
 239timeout: Watchdog timeout in Mhz. (68Mhz clock), default=2040000000 (30 seconds)
 240nowayout: Watchdog cannot be stopped once started
 241        (default=kernel config parameter)
 242start_enabled: Watchdog is started on module insertion (default=1)
 243-------------------------------------------------
 244rc32434_wdt:
 245timeout: Watchdog timeout value, in seconds (default=20)
 246nowayout: Watchdog cannot be stopped once started
 247        (default=kernel config parameter)
 248-------------------------------------------------
 249riowd:
 250riowd_timeout: Watchdog timeout in minutes (default=1)
 251-------------------------------------------------
 252s3c2410_wdt:
 253tmr_margin: Watchdog tmr_margin in seconds. (default=15)
 254tmr_atboot: Watchdog is started at boot time if set to 1, default=0
 255nowayout: Watchdog cannot be stopped once started
 256        (default=kernel config parameter)
 257soft_noboot: Watchdog action, set to 1 to ignore reboots, 0 to reboot
 258debug: Watchdog debug, set to >1 for debug, (default 0)
 259-------------------------------------------------
 260sa1100_wdt:
 261margin: Watchdog margin in seconds (default 60s)
 262-------------------------------------------------
 263sb_wdog:
 264timeout: Watchdog timeout in microseconds (max/default 8388607 or 8.3ish secs)
 265-------------------------------------------------
 266sbc60xxwdt:
 267wdt_stop: SBC60xx WDT 'stop' io port (default 0x45)
 268wdt_start: SBC60xx WDT 'start' io port (default 0x443)
 269timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
 270nowayout: Watchdog cannot be stopped once started
 271        (default=kernel config parameter)
 272-------------------------------------------------
 273sbc7240_wdt:
 274timeout: Watchdog timeout in seconds. (1<=timeout<=255, default=30)
 275nowayout: Disable watchdog when closing device file
 276-------------------------------------------------
 277sbc8360:
 278timeout: Index into timeout table (0-63) (default=27 (60s))
 279nowayout: Watchdog cannot be stopped once started
 280        (default=kernel config parameter)
 281-------------------------------------------------
 282sbc_epx_c3:
 283nowayout: Watchdog cannot be stopped once started
 284        (default=kernel config parameter)
 285-------------------------------------------------
 286sbc_fitpc2_wdt:
 287margin: Watchdog margin in seconds (default 60s)
 288nowayout: Watchdog cannot be stopped once started
 289-------------------------------------------------
 290sc1200wdt:
 291isapnp: When set to 0 driver ISA PnP support will be disabled (default=1)
 292io: io port
 293timeout: range is 0-255 minutes, default is 1
 294nowayout: Watchdog cannot be stopped once started
 295        (default=kernel config parameter)
 296-------------------------------------------------
 297sc520_wdt:
 298timeout: Watchdog timeout in seconds. (1 <= timeout <= 3600, default=30)
 299nowayout: Watchdog cannot be stopped once started
 300        (default=kernel config parameter)
 301-------------------------------------------------
 302sch311x_wdt:
 303force_id: Override the detected device ID
 304therm_trip: Should a ThermTrip trigger the reset generator
 305timeout: Watchdog timeout in seconds. 1<= timeout <=15300, default=60
 306nowayout: Watchdog cannot be stopped once started
 307        (default=kernel config parameter)
 308-------------------------------------------------
 309scx200_wdt:
 310margin: Watchdog margin in seconds
 311nowayout: Disable watchdog shutdown on close
 312-------------------------------------------------
 313shwdt:
 314clock_division_ratio: Clock division ratio. Valid ranges are from 0x5 (1.31ms)
 315        to 0x7 (5.25ms). (default=7)
 316heartbeat: Watchdog heartbeat in seconds. (1 <= heartbeat <= 3600, default=30
 317nowayout: Watchdog cannot be stopped once started
 318        (default=kernel config parameter)
 319-------------------------------------------------
 320smsc37b787_wdt:
 321timeout: range is 1-255 units, default is 60
 322nowayout: Watchdog cannot be stopped once started
 323        (default=kernel config parameter)
 324-------------------------------------------------
 325softdog:
 326soft_margin: Watchdog soft_margin in seconds.
 327        (0 < soft_margin < 65536, default=60)
 328nowayout: Watchdog cannot be stopped once started
 329        (default=kernel config parameter)
 330soft_noboot: Softdog action, set to 1 to ignore reboots, 0 to reboot
 331        (default=0)
 332-------------------------------------------------
 333stmp3xxx_wdt:
 334heartbeat: Watchdog heartbeat period in seconds from 1 to 4194304, default 19
 335-------------------------------------------------
 336ts72xx_wdt:
 337timeout: Watchdog timeout in seconds. (1 <= timeout <= 8, default=8)
 338nowayout: Disable watchdog shutdown on close
 339-------------------------------------------------
 340twl4030_wdt:
 341nowayout: Watchdog cannot be stopped once started
 342        (default=kernel config parameter)
 343-------------------------------------------------
 344txx9wdt:
 345timeout: Watchdog timeout in seconds. (0<timeout<N, default=60)
 346nowayout: Watchdog cannot be stopped once started
 347        (default=kernel config parameter)
 348-------------------------------------------------
 349w83627hf_wdt:
 350wdt_io: w83627hf/thf WDT io port (default 0x2E)
 351timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
 352nowayout: Watchdog cannot be stopped once started
 353        (default=kernel config parameter)
 354-------------------------------------------------
 355w83697hf_wdt:
 356wdt_io: w83697hf/hg WDT io port (default 0x2e, 0 = autodetect)
 357timeout: Watchdog timeout in seconds. 1<= timeout <=255 (default=60)
 358nowayout: Watchdog cannot be stopped once started
 359        (default=kernel config parameter)
 360early_disable: Watchdog gets disabled at boot time (default=1)
 361-------------------------------------------------
 362w83697ug_wdt:
 363wdt_io: w83697ug/uf WDT io port (default 0x2e)
 364timeout: Watchdog timeout in seconds. 1<= timeout <=255 (default=60)
 365nowayout: Watchdog cannot be stopped once started
 366        (default=kernel config parameter)
 367-------------------------------------------------
 368w83877f_wdt:
 369timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
 370nowayout: Watchdog cannot be stopped once started
 371        (default=kernel config parameter)
 372-------------------------------------------------
 373w83977f_wdt:
 374timeout: Watchdog timeout in seconds (15..7635), default=45)
 375testmode: Watchdog testmode (1 = no reboot), default=0
 376nowayout: Watchdog cannot be stopped once started
 377        (default=kernel config parameter)
 378-------------------------------------------------
 379wafer5823wdt:
 380timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
 381nowayout: Watchdog cannot be stopped once started
 382        (default=kernel config parameter)
 383-------------------------------------------------
 384wdt285:
 385soft_margin: Watchdog timeout in seconds (default=60)
 386-------------------------------------------------
 387wdt977:
 388timeout: Watchdog timeout in seconds (60..15300, default=60)
 389testmode: Watchdog testmode (1 = no reboot), default=0
 390nowayout: Watchdog cannot be stopped once started
 391        (default=kernel config parameter)
 392-------------------------------------------------
 393wm831x_wdt:
 394nowayout: Watchdog cannot be stopped once started
 395        (default=kernel config parameter)
 396-------------------------------------------------
 397wm8350_wdt:
 398nowayout: Watchdog cannot be stopped once started
 399        (default=kernel config parameter)
 400-------------------------------------------------
 401
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