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