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 153nocir: Forbid the use of CIR (workaround for some buggy setups); set to 1 if 154system resets despite watchdog daemon running, default=0 155exclusive: Watchdog exclusive device open, default=1 156timeout: Watchdog timeout in seconds, default=60 157testmode: Watchdog test mode (1 = no reboot), default=0 158nowayout: Watchdog cannot be stopped once started 159 (default=kernel config parameter) 160------------------------------------------------- 161ixp2000_wdt: 162heartbeat: Watchdog heartbeat in seconds (default 60s) 163nowayout: Watchdog cannot be stopped once started 164 (default=kernel config parameter) 165------------------------------------------------- 166ixp4xx_wdt: 167heartbeat: Watchdog heartbeat in seconds (default 60s) 168nowayout: Watchdog cannot be stopped once started 169 (default=kernel config parameter) 170------------------------------------------------- 171ks8695_wdt: 172wdt_time: Watchdog time in seconds. (default=5) 173nowayout: Watchdog cannot be stopped once started 174 (default=kernel config parameter) 175------------------------------------------------- 176machzwd: 177nowayout: Watchdog cannot be stopped once started 178 (default=kernel config parameter) 179action: after watchdog resets, generate: 180 0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI 181------------------------------------------------- 182max63xx_wdt: 183heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 60 184nowayout: Watchdog cannot be stopped once started 185 (default=kernel config parameter) 186nodelay: Force selection of a timeout setting without initial delay 187 (max6373/74 only, default=0) 188------------------------------------------------- 189mixcomwd: 190nowayout: Watchdog cannot be stopped once started 191 (default=kernel config parameter) 192------------------------------------------------- 193mpc8xxx_wdt: 194timeout: Watchdog timeout in ticks. (0<timeout<65536, default=65535) 195reset: Watchdog Interrupt/Reset Mode. 0 = interrupt, 1 = reset 196nowayout: Watchdog cannot be stopped once started 197 (default=kernel config parameter) 198------------------------------------------------- 199mv64x60_wdt: 200nowayout: Watchdog cannot be stopped once started 201 (default=kernel config parameter) 202------------------------------------------------- 203nuc900_wdt: 204heartbeat: Watchdog heartbeats in seconds. 205 (default = 15) 206nowayout: Watchdog cannot be stopped once started 207 (default=kernel config parameter) 208------------------------------------------------- 209omap_wdt: 210timer_margin: initial watchdog timeout (in seconds) 211early_enable: Watchdog is started on module insertion (default=0 212nowayout: Watchdog cannot be stopped once started 213 (default=kernel config parameter) 214------------------------------------------------- 215orion_wdt: 216heartbeat: Initial watchdog heartbeat in seconds 217nowayout: Watchdog cannot be stopped once started 218 (default=kernel config parameter) 219------------------------------------------------- 220pc87413_wdt: 221io: pc87413 WDT I/O port (default: io). 222timeout: Watchdog timeout in minutes (default=timeout). 223nowayout: Watchdog cannot be stopped once started 224 (default=kernel config parameter) 225------------------------------------------------- 226pika_wdt: 227heartbeat: Watchdog heartbeats in seconds. (default = 15) 228nowayout: Watchdog cannot be stopped once started 229 (default=kernel config parameter) 230------------------------------------------------- 231pnx4008_wdt: 232heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 19 233nowayout: Set to 1 to keep watchdog running after device release 234------------------------------------------------- 235pnx833x_wdt: 236timeout: Watchdog timeout in Mhz. (68Mhz clock), default=2040000000 (30 seconds) 237nowayout: Watchdog cannot be stopped once started 238 (default=kernel config parameter) 239start_enabled: Watchdog is started on module insertion (default=1) 240------------------------------------------------- 241rc32434_wdt: 242timeout: Watchdog timeout value, in seconds (default=20) 243nowayout: Watchdog cannot be stopped once started 244 (default=kernel config parameter) 245------------------------------------------------- 246riowd: 247riowd_timeout: Watchdog timeout in minutes (default=1) 248------------------------------------------------- 249s3c2410_wdt: 250tmr_margin: Watchdog tmr_margin in seconds. (default=15) 251tmr_atboot: Watchdog is started at boot time if set to 1, default=0 252nowayout: Watchdog cannot be stopped once started 253 (default=kernel config parameter) 254soft_noboot: Watchdog action, set to 1 to ignore reboots, 0 to reboot 255debug: Watchdog debug, set to >1 for debug, (default 0) 256------------------------------------------------- 257sa1100_wdt: 258margin: Watchdog margin in seconds (default 60s) 259------------------------------------------------- 260sb_wdog: 261timeout: Watchdog timeout in microseconds (max/default 8388607 or 8.3ish secs) 262------------------------------------------------- 263sbc60xxwdt: 264wdt_stop: SBC60xx WDT 'stop' io port (default 0x45) 265wdt_start: SBC60xx WDT 'start' io port (default 0x443) 266timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30) 267nowayout: Watchdog cannot be stopped once started 268 (default=kernel config parameter) 269------------------------------------------------- 270sbc7240_wdt: 271timeout: Watchdog timeout in seconds. (1<=timeout<=255, default=30) 272nowayout: Disable watchdog when closing device file 273------------------------------------------------- 274sbc8360: 275timeout: Index into timeout table (0-63) (default=27 (60s)) 276nowayout: Watchdog cannot be stopped once started 277 (default=kernel config parameter) 278------------------------------------------------- 279sbc_epx_c3: 280nowayout: Watchdog cannot be stopped once started 281 (default=kernel config parameter) 282------------------------------------------------- 283sbc_fitpc2_wdt: 284margin: Watchdog margin in seconds (default 60s) 285nowayout: Watchdog cannot be stopped once started 286------------------------------------------------- 287sc1200wdt: 288isapnp: When set to 0 driver ISA PnP support will be disabled (default=1) 289io: io port 290timeout: range is 0-255 minutes, default is 1 291nowayout: Watchdog cannot be stopped once started 292 (default=kernel config parameter) 293------------------------------------------------- 294sc520_wdt: 295timeout: Watchdog timeout in seconds. (1 <= timeout <= 3600, default=30) 296nowayout: Watchdog cannot be stopped once started 297 (default=kernel config parameter) 298------------------------------------------------- 299sch311x_wdt: 300force_id: Override the detected device ID 301therm_trip: Should a ThermTrip trigger the reset generator 302timeout: Watchdog timeout in seconds. 1<= timeout <=15300, default=60 303nowayout: Watchdog cannot be stopped once started 304 (default=kernel config parameter) 305------------------------------------------------- 306scx200_wdt: 307margin: Watchdog margin in seconds 308nowayout: Disable watchdog shutdown on close 309------------------------------------------------- 310shwdt: 311clock_division_ratio: Clock division ratio. Valid ranges are from 0x5 (1.31ms) 312 to 0x7 (5.25ms). (default=7) 313heartbeat: Watchdog heartbeat in seconds. (1 <= heartbeat <= 3600, default=30 314nowayout: Watchdog cannot be stopped once started 315 (default=kernel config parameter) 316------------------------------------------------- 317smsc37b787_wdt: 318timeout: range is 1-255 units, default is 60 319nowayout: Watchdog cannot be stopped once started 320 (default=kernel config parameter) 321------------------------------------------------- 322softdog: 323soft_margin: Watchdog soft_margin in seconds. 324 (0 < soft_margin < 65536, default=60) 325nowayout: Watchdog cannot be stopped once started 326 (default=kernel config parameter) 327soft_noboot: Softdog action, set to 1 to ignore reboots, 0 to reboot 328 (default=0) 329------------------------------------------------- 330stmp3xxx_wdt: 331heartbeat: Watchdog heartbeat period in seconds from 1 to 4194304, default 19 332------------------------------------------------- 333tegra_wdt: 334heartbeat: Watchdog heartbeats in seconds. (default = 120) 335nowayout: Watchdog cannot be stopped once started 336 (default=kernel config parameter) 337------------------------------------------------- 338ts72xx_wdt: 339timeout: Watchdog timeout in seconds. (1 <= timeout <= 8, default=8) 340nowayout: Disable watchdog shutdown on close 341------------------------------------------------- 342twl4030_wdt: 343nowayout: Watchdog cannot be stopped once started 344 (default=kernel config parameter) 345------------------------------------------------- 346txx9wdt: 347timeout: Watchdog timeout in seconds. (0<timeout<N, default=60) 348nowayout: Watchdog cannot be stopped once started 349 (default=kernel config parameter) 350------------------------------------------------- 351w83627hf_wdt: 352wdt_io: w83627hf/thf WDT io port (default 0x2E) 353timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60. 354nowayout: Watchdog cannot be stopped once started 355 (default=kernel config parameter) 356------------------------------------------------- 357w83697hf_wdt: 358wdt_io: w83697hf/hg WDT io port (default 0x2e, 0 = autodetect) 359timeout: Watchdog timeout in seconds. 1<= timeout <=255 (default=60) 360nowayout: Watchdog cannot be stopped once started 361 (default=kernel config parameter) 362early_disable: Watchdog gets disabled at boot time (default=1) 363------------------------------------------------- 364w83697ug_wdt: 365wdt_io: w83697ug/uf WDT io port (default 0x2e) 366timeout: Watchdog timeout in seconds. 1<= timeout <=255 (default=60) 367nowayout: Watchdog cannot be stopped once started 368 (default=kernel config parameter) 369------------------------------------------------- 370w83877f_wdt: 371timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30) 372nowayout: Watchdog cannot be stopped once started 373 (default=kernel config parameter) 374------------------------------------------------- 375w83977f_wdt: 376timeout: Watchdog timeout in seconds (15..7635), default=45) 377testmode: Watchdog testmode (1 = no reboot), default=0 378nowayout: Watchdog cannot be stopped once started 379 (default=kernel config parameter) 380------------------------------------------------- 381wafer5823wdt: 382timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60. 383nowayout: Watchdog cannot be stopped once started 384 (default=kernel config parameter) 385------------------------------------------------- 386wdt285: 387soft_margin: Watchdog timeout in seconds (default=60) 388------------------------------------------------- 389wdt977: 390timeout: Watchdog timeout in seconds (60..15300, default=60) 391testmode: Watchdog testmode (1 = no reboot), default=0 392nowayout: Watchdog cannot be stopped once started 393 (default=kernel config parameter) 394------------------------------------------------- 395wm831x_wdt: 396nowayout: Watchdog cannot be stopped once started 397 (default=kernel config parameter) 398------------------------------------------------- 399wm8350_wdt: 400nowayout: Watchdog cannot be stopped once started 401 (default=kernel config parameter) 402------------------------------------------------- 403