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------------------------------------------------- 197mv64x60_wdt: 198nowayout: Watchdog cannot be stopped once started 199 (default=kernel config parameter) 200------------------------------------------------- 201nuc900_wdt: 202heartbeat: Watchdog heartbeats in seconds. 203 (default = 15) 204nowayout: Watchdog cannot be stopped once started 205 (default=kernel config parameter) 206------------------------------------------------- 207omap_wdt: 208timer_margin: initial watchdog timeout (in seconds) 209------------------------------------------------- 210orion_wdt: 211heartbeat: Initial watchdog heartbeat in seconds 212nowayout: Watchdog cannot be stopped once started 213 (default=kernel config parameter) 214------------------------------------------------- 215pc87413_wdt: 216io: pc87413 WDT I/O port (default: io). 217timeout: Watchdog timeout in minutes (default=timeout). 218nowayout: Watchdog cannot be stopped once started 219 (default=kernel config parameter) 220------------------------------------------------- 221pika_wdt: 222heartbeat: Watchdog heartbeats in seconds. (default = 15) 223nowayout: Watchdog cannot be stopped once started 224 (default=kernel config parameter) 225------------------------------------------------- 226pnx4008_wdt: 227heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 19 228nowayout: Set to 1 to keep watchdog running after device release 229------------------------------------------------- 230pnx833x_wdt: 231timeout: Watchdog timeout in Mhz. (68Mhz clock), default=2040000000 (30 seconds) 232nowayout: Watchdog cannot be stopped once started 233 (default=kernel config parameter) 234start_enabled: Watchdog is started on module insertion (default=1) 235------------------------------------------------- 236rc32434_wdt: 237timeout: Watchdog timeout value, in seconds (default=20) 238nowayout: Watchdog cannot be stopped once started 239 (default=kernel config parameter) 240------------------------------------------------- 241riowd: 242riowd_timeout: Watchdog timeout in minutes (default=1) 243------------------------------------------------- 244s3c2410_wdt: 245tmr_margin: Watchdog tmr_margin in seconds. (default=15) 246tmr_atboot: Watchdog is started at boot time if set to 1, default=0 247nowayout: Watchdog cannot be stopped once started 248 (default=kernel config parameter) 249soft_noboot: Watchdog action, set to 1 to ignore reboots, 0 to reboot 250debug: Watchdog debug, set to >1 for debug, (default 0) 251------------------------------------------------- 252sa1100_wdt: 253margin: Watchdog margin in seconds (default 60s) 254------------------------------------------------- 255sb_wdog: 256timeout: Watchdog timeout in microseconds (max/default 8388607 or 8.3ish secs) 257------------------------------------------------- 258sbc60xxwdt: 259wdt_stop: SBC60xx WDT 'stop' io port (default 0x45) 260wdt_start: SBC60xx WDT 'start' io port (default 0x443) 261timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30) 262nowayout: Watchdog cannot be stopped once started 263 (default=kernel config parameter) 264------------------------------------------------- 265sbc7240_wdt: 266timeout: Watchdog timeout in seconds. (1<=timeout<=255, default=30) 267nowayout: Disable watchdog when closing device file 268------------------------------------------------- 269sbc8360: 270timeout: Index into timeout table (0-63) (default=27 (60s)) 271nowayout: Watchdog cannot be stopped once started 272 (default=kernel config parameter) 273------------------------------------------------- 274sbc_epx_c3: 275nowayout: Watchdog cannot be stopped once started 276 (default=kernel config parameter) 277------------------------------------------------- 278sbc_fitpc2_wdt: 279margin: Watchdog margin in seconds (default 60s) 280nowayout: Watchdog cannot be stopped once started 281------------------------------------------------- 282sc1200wdt: 283isapnp: When set to 0 driver ISA PnP support will be disabled (default=1) 284io: io port 285timeout: range is 0-255 minutes, default is 1 286nowayout: Watchdog cannot be stopped once started 287 (default=kernel config parameter) 288------------------------------------------------- 289sc520_wdt: 290timeout: Watchdog timeout in seconds. (1 <= timeout <= 3600, default=30) 291nowayout: Watchdog cannot be stopped once started 292 (default=kernel config parameter) 293------------------------------------------------- 294sch311x_wdt: 295force_id: Override the detected device ID 296therm_trip: Should a ThermTrip trigger the reset generator 297timeout: Watchdog timeout in seconds. 1<= timeout <=15300, default=60 298nowayout: Watchdog cannot be stopped once started 299 (default=kernel config parameter) 300------------------------------------------------- 301scx200_wdt: 302margin: Watchdog margin in seconds 303nowayout: Disable watchdog shutdown on close 304------------------------------------------------- 305shwdt: 306clock_division_ratio: Clock division ratio. Valid ranges are from 0x5 (1.31ms) 307 to 0x7 (5.25ms). (default=7) 308heartbeat: Watchdog heartbeat in seconds. (1 <= heartbeat <= 3600, default=30 309nowayout: Watchdog cannot be stopped once started 310 (default=kernel config parameter) 311------------------------------------------------- 312smsc37b787_wdt: 313timeout: range is 1-255 units, default is 60 314nowayout: Watchdog cannot be stopped once started 315 (default=kernel config parameter) 316------------------------------------------------- 317softdog: 318soft_margin: Watchdog soft_margin in seconds. 319 (0 < soft_margin < 65536, default=60) 320nowayout: Watchdog cannot be stopped once started 321 (default=kernel config parameter) 322soft_noboot: Softdog action, set to 1 to ignore reboots, 0 to reboot 323 (default=0) 324------------------------------------------------- 325stmp3xxx_wdt: 326heartbeat: Watchdog heartbeat period in seconds from 1 to 4194304, default 19 327------------------------------------------------- 328ts72xx_wdt: 329timeout: Watchdog timeout in seconds. (1 <= timeout <= 8, default=8) 330nowayout: Disable watchdog shutdown on close 331------------------------------------------------- 332twl4030_wdt: 333nowayout: Watchdog cannot be stopped once started 334 (default=kernel config parameter) 335------------------------------------------------- 336txx9wdt: 337timeout: Watchdog timeout in seconds. (0<timeout<N, default=60) 338nowayout: Watchdog cannot be stopped once started 339 (default=kernel config parameter) 340------------------------------------------------- 341w83627hf_wdt: 342wdt_io: w83627hf/thf WDT io port (default 0x2E) 343timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60. 344nowayout: Watchdog cannot be stopped once started 345 (default=kernel config parameter) 346------------------------------------------------- 347w83697hf_wdt: 348wdt_io: w83697hf/hg WDT io port (default 0x2e, 0 = autodetect) 349timeout: Watchdog timeout in seconds. 1<= timeout <=255 (default=60) 350nowayout: Watchdog cannot be stopped once started 351 (default=kernel config parameter) 352early_disable: Watchdog gets disabled at boot time (default=1) 353------------------------------------------------- 354w83697ug_wdt: 355wdt_io: w83697ug/uf WDT io port (default 0x2e) 356timeout: Watchdog timeout in seconds. 1<= timeout <=255 (default=60) 357nowayout: Watchdog cannot be stopped once started 358 (default=kernel config parameter) 359------------------------------------------------- 360w83877f_wdt: 361timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30) 362nowayout: Watchdog cannot be stopped once started 363 (default=kernel config parameter) 364------------------------------------------------- 365w83977f_wdt: 366timeout: Watchdog timeout in seconds (15..7635), default=45) 367testmode: Watchdog testmode (1 = no reboot), default=0 368nowayout: Watchdog cannot be stopped once started 369 (default=kernel config parameter) 370------------------------------------------------- 371wafer5823wdt: 372timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60. 373nowayout: Watchdog cannot be stopped once started 374 (default=kernel config parameter) 375------------------------------------------------- 376wdt285: 377soft_margin: Watchdog timeout in seconds (default=60) 378------------------------------------------------- 379wdt977: 380timeout: Watchdog timeout in seconds (60..15300, default=60) 381testmode: Watchdog testmode (1 = no reboot), default=0 382nowayout: Watchdog cannot be stopped once started 383 (default=kernel config parameter) 384------------------------------------------------- 385wm831x_wdt: 386nowayout: Watchdog cannot be stopped once started 387 (default=kernel config parameter) 388------------------------------------------------- 389wm8350_wdt: 390nowayout: Watchdog cannot be stopped once started 391 (default=kernel config parameter) 392------------------------------------------------- 393