1 This file provides information on the module parameters of many of
2 the Linux watchdog drivers. Watchdog driver parameter specs should
3 be listed here unless the driver has its own driver-specific information
7 See Documentation/admin-guide/kernel-parameters.rst for information on
8 providing kernel parameters for builtin drivers versus loadable
12 -------------------------------------------------
14 wdt_stop: Acquire WDT 'stop' io port (default 0x43)
15 wdt_start: Acquire WDT 'start' io port (default 0x443)
16 nowayout: Watchdog cannot be stopped once started
17 (default=kernel config parameter)
18 -------------------------------------------------
20 wdt_stop: Advantech WDT 'stop' io port (default 0x443)
21 wdt_start: Advantech WDT 'start' io port (default 0x443)
22 timeout: Watchdog timeout in seconds. 1<= timeout <=63, default=60.
23 nowayout: Watchdog cannot be stopped once started
24 (default=kernel config parameter)
25 -------------------------------------------------
27 timeout: Watchdog timeout in seconds. (0 < timeout < 18000, default=60
28 nowayout: Watchdog cannot be stopped once started
29 (default=kernel config parameter)
30 -------------------------------------------------
32 timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30
33 use_gpio: Use the gpio watchdog (required by old cobalt boards).
35 nowayout: Watchdog cannot be stopped once started
36 (default=kernel config parameter)
37 -------------------------------------------------
39 margin: Watchdog margin in seconds (default=60)
40 nowayout: Disable watchdog shutdown on close
41 (default=kernel config parameter)
42 -------------------------------------------------
44 wdt_time: Watchdog time in seconds. (default=5)
45 nowayout: Watchdog cannot be stopped once started
46 (default=kernel config parameter)
47 -------------------------------------------------
49 heartbeat: Watchdog heartbeats in seconds. (default = 15)
50 nowayout: Watchdog cannot be stopped once started
51 (default=kernel config parameter)
52 -------------------------------------------------
54 wdt_time: Watchdog time in seconds. (default=30)
55 nowayout: Watchdog cannot be stopped once started
56 (default=kernel config parameter)
57 -------------------------------------------------
59 timeout: Watchdog timeout in seconds. (1<=timeout<=((2^32)/SCLK), default=20)
60 nowayout: Watchdog cannot be stopped once started
61 (default=kernel config parameter)
62 -------------------------------------------------
64 margin: Watchdog margin in seconds (default 60s)
65 -------------------------------------------------
67 port: base address of watchdog card, default is 0x91
68 verbose: be verbose, default is 0 (no)
69 ticks: count down ticks, default is 10000
70 -------------------------------------------------
72 wd0_timeout: Default watchdog0 timeout in 1/10secs
73 wd1_timeout: Default watchdog1 timeout in 1/10secs
74 wd2_timeout: Default watchdog2 timeout in 1/10secs
75 -------------------------------------------------
77 timeout: Watchdog timeout in seconds. 2<= timeout <=131, default=2.048s
78 nowayout: Watchdog cannot be stopped once started
79 (default=kernel config parameter)
80 -------------------------------------------------
82 heartbeat: Watchdog heartbeat period in seconds from 1 to 600, default 60
83 -------------------------------------------------
85 timeout: Watchdog timeout in seconds. (1<=timeout<=15300, default=60)
86 nowayout: Watchdog cannot be stopped once started
87 -------------------------------------------------
89 nowayout: Watchdog cannot be stopped once started
90 timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=TBD)
91 -------------------------------------------------
93 nowayout: Watchdog cannot be stopped once started
94 (default=kernel config parameter)
95 io: Eurotech WDT io port (default=0x3f0)
96 irq: Eurotech WDT irq (default=10)
97 ev: Eurotech WDT event type (default is `int')
98 -------------------------------------------------
100 nowayout: Watchdog cannot be stopped once started
101 (default=kernel config parameter)
102 -------------------------------------------------
104 timeout: Watchdog timeout in seconds. 1<= timeout <=131, default=60.
105 nowayout: Watchdog cannot be stopped once started
106 (default=kernel config parameter)
107 -------------------------------------------------
109 heartbeat: Watchdog heartbeat in seconds. (1<heartbeat<2046, default=30)
110 nowayout: Watchdog cannot be stopped once started
111 (default=kernel config parameter)
112 -------------------------------------------------
114 heartbeat: Watchdog heartbeat in seconds.
115 (2<heartbeat<39 (TCO v1) or 613 (TCO v2), default=30)
116 nowayout: Watchdog cannot be stopped once started
117 (default=kernel config parameter)
118 -------------------------------------------------
120 vendorsupport: iTCO vendor specific support mode, default=0 (none),
121 1=SuperMicro Pent3, 2=SuperMicro Pent4+, 911=Broken SMI BIOS
122 -------------------------------------------------
124 timeout: Watchdog timeout in seconds. 0<= timeout <=30, default=30.
125 nowayout: Watchdog cannot be stopped once started
126 (default=kernel config parameter)
127 -------------------------------------------------
129 nowayout: Watchdog cannot be stopped once started
130 (default=kernel config parameter)
131 -------------------------------------------------
133 timeout: Watchdog timeout in seconds (default 60 s)
134 nowayout: Watchdog cannot be stopped once started
135 (default=kernel config parameter)
136 -------------------------------------------------
138 nowayout: Watchdog cannot be stopped once started
139 (default=kernel config parameter)
140 -------------------------------------------------
142 nowayout: Watchdog cannot be stopped once started
143 (default=kernel config parameter)
144 -------------------------------------------------
146 margin: Watchdog margin in seconds (default 60)
147 nowayout: Disable watchdog shutdown on close
148 (default=kernel config parameter)
149 -------------------------------------------------
151 nogameport: Forbid the activation of game port, default=0
152 nocir: Forbid the use of CIR (workaround for some buggy setups); set to 1 if
153 system resets despite watchdog daemon running, default=0
154 exclusive: Watchdog exclusive device open, default=1
155 timeout: Watchdog timeout in seconds, default=60
156 testmode: Watchdog test mode (1 = no reboot), default=0
157 nowayout: Watchdog cannot be stopped once started
158 (default=kernel config parameter)
159 -------------------------------------------------
161 heartbeat: Watchdog heartbeat in seconds (default 60s)
162 nowayout: Watchdog cannot be stopped once started
163 (default=kernel config parameter)
164 -------------------------------------------------
166 heartbeat: Watchdog heartbeat in seconds (default 60s)
167 nowayout: Watchdog cannot be stopped once started
168 (default=kernel config parameter)
169 -------------------------------------------------
171 wdt_time: Watchdog time in seconds. (default=5)
172 nowayout: Watchdog cannot be stopped once started
173 (default=kernel config parameter)
174 -------------------------------------------------
176 nowayout: Watchdog cannot be stopped once started
177 (default=kernel config parameter)
178 action: after watchdog resets, generate:
179 0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI
180 -------------------------------------------------
182 heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 60
183 nowayout: Watchdog cannot be stopped once started
184 (default=kernel config parameter)
185 nodelay: Force selection of a timeout setting without initial delay
186 (max6373/74 only, default=0)
187 -------------------------------------------------
189 nowayout: Watchdog cannot be stopped once started
190 (default=kernel config parameter)
191 -------------------------------------------------
193 timeout: Watchdog timeout in ticks. (0<timeout<65536, default=65535)
194 reset: Watchdog Interrupt/Reset Mode. 0 = interrupt, 1 = reset
195 nowayout: Watchdog cannot be stopped once started
196 (default=kernel config parameter)
197 -------------------------------------------------
199 nowayout: Watchdog cannot be stopped once started
200 (default=kernel config parameter)
201 -------------------------------------------------
203 timeout: Initial watchdog timeout in seconds (0<timeout<516, default=60)
204 nowayout: Watchdog cannot be stopped once started
205 (default=kernel config parameter)
206 -------------------------------------------------
208 timeout: Initial watchdog timeout in seconds (0<timeout<464, default=80)
209 nowayout: Watchdog cannot be stopped once started
210 (default=kernel config parameter)
211 -------------------------------------------------
213 heartbeat: Watchdog heartbeats in seconds.
215 nowayout: Watchdog cannot be stopped once started
216 (default=kernel config parameter)
217 -------------------------------------------------
219 timer_margin: initial watchdog timeout (in seconds)
220 early_enable: Watchdog is started on module insertion (default=0
221 nowayout: Watchdog cannot be stopped once started
222 (default=kernel config parameter)
223 -------------------------------------------------
225 heartbeat: Initial watchdog heartbeat in seconds
226 nowayout: Watchdog cannot be stopped once started
227 (default=kernel config parameter)
228 -------------------------------------------------
230 io: pc87413 WDT I/O port (default: io).
231 timeout: Watchdog timeout in minutes (default=timeout).
232 nowayout: Watchdog cannot be stopped once started
233 (default=kernel config parameter)
234 -------------------------------------------------
236 heartbeat: Watchdog heartbeats in seconds. (default = 15)
237 nowayout: Watchdog cannot be stopped once started
238 (default=kernel config parameter)
239 -------------------------------------------------
241 heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 19
242 nowayout: Set to 1 to keep watchdog running after device release
243 -------------------------------------------------
245 timeout: Watchdog timeout in Mhz. (68Mhz clock), default=2040000000 (30 seconds)
246 nowayout: Watchdog cannot be stopped once started
247 (default=kernel config parameter)
248 start_enabled: Watchdog is started on module insertion (default=1)
249 -------------------------------------------------
251 timeout: Watchdog timeout value, in seconds (default=20)
252 nowayout: Watchdog cannot be stopped once started
253 (default=kernel config parameter)
254 -------------------------------------------------
256 riowd_timeout: Watchdog timeout in minutes (default=1)
257 -------------------------------------------------
259 tmr_margin: Watchdog tmr_margin in seconds. (default=15)
260 tmr_atboot: Watchdog is started at boot time if set to 1, default=0
261 nowayout: Watchdog cannot be stopped once started
262 (default=kernel config parameter)
263 soft_noboot: Watchdog action, set to 1 to ignore reboots, 0 to reboot
264 debug: Watchdog debug, set to >1 for debug, (default 0)
265 -------------------------------------------------
267 margin: Watchdog margin in seconds (default 60s)
268 -------------------------------------------------
270 timeout: Watchdog timeout in microseconds (max/default 8388607 or 8.3ish secs)
271 -------------------------------------------------
273 wdt_stop: SBC60xx WDT 'stop' io port (default 0x45)
274 wdt_start: SBC60xx WDT 'start' io port (default 0x443)
275 timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
276 nowayout: Watchdog cannot be stopped once started
277 (default=kernel config parameter)
278 -------------------------------------------------
280 timeout: Watchdog timeout in seconds. (1<=timeout<=255, default=30)
281 nowayout: Disable watchdog when closing device file
282 -------------------------------------------------
284 timeout: Index into timeout table (0-63) (default=27 (60s))
285 nowayout: Watchdog cannot be stopped once started
286 (default=kernel config parameter)
287 -------------------------------------------------
289 nowayout: Watchdog cannot be stopped once started
290 (default=kernel config parameter)
291 -------------------------------------------------
293 margin: Watchdog margin in seconds (default 60s)
294 nowayout: Watchdog cannot be stopped once started
295 -------------------------------------------------
297 timeout: Watchdog timeout in seconds. (default 10s)
298 action: Watchdog action at the first stage timeout,
299 set to 0 to ignore, 1 to panic. (default=0)
300 nowayout: Watchdog cannot be stopped once started
301 (default=kernel config parameter)
302 -------------------------------------------------
304 isapnp: When set to 0 driver ISA PnP support will be disabled (default=1)
306 timeout: range is 0-255 minutes, default is 1
307 nowayout: Watchdog cannot be stopped once started
308 (default=kernel config parameter)
309 -------------------------------------------------
311 timeout: Watchdog timeout in seconds. (1 <= timeout <= 3600, default=30)
312 nowayout: Watchdog cannot be stopped once started
313 (default=kernel config parameter)
314 -------------------------------------------------
316 force_id: Override the detected device ID
317 therm_trip: Should a ThermTrip trigger the reset generator
318 timeout: Watchdog timeout in seconds. 1<= timeout <=15300, default=60
319 nowayout: Watchdog cannot be stopped once started
320 (default=kernel config parameter)
321 -------------------------------------------------
323 margin: Watchdog margin in seconds
324 nowayout: Disable watchdog shutdown on close
325 -------------------------------------------------
327 clock_division_ratio: Clock division ratio. Valid ranges are from 0x5 (1.31ms)
328 to 0x7 (5.25ms). (default=7)
329 heartbeat: Watchdog heartbeat in seconds. (1 <= heartbeat <= 3600, default=30
330 nowayout: Watchdog cannot be stopped once started
331 (default=kernel config parameter)
332 -------------------------------------------------
334 timeout: range is 1-255 units, default is 60
335 nowayout: Watchdog cannot be stopped once started
336 (default=kernel config parameter)
337 -------------------------------------------------
339 soft_margin: Watchdog soft_margin in seconds.
340 (0 < soft_margin < 65536, default=60)
341 nowayout: Watchdog cannot be stopped once started
342 (default=kernel config parameter)
343 soft_noboot: Softdog action, set to 1 to ignore reboots, 0 to reboot
345 -------------------------------------------------
347 heartbeat: Watchdog heartbeat period in seconds from 1 to 4194304, default 19
348 -------------------------------------------------
350 heartbeat: Watchdog heartbeats in seconds. (default = 120)
351 nowayout: Watchdog cannot be stopped once started
352 (default=kernel config parameter)
353 -------------------------------------------------
355 timeout: Watchdog timeout in seconds. (1 <= timeout <= 8, default=8)
356 nowayout: Disable watchdog shutdown on close
357 -------------------------------------------------
359 nowayout: Watchdog cannot be stopped once started
360 (default=kernel config parameter)
361 -------------------------------------------------
363 timeout: Watchdog timeout in seconds. (0<timeout<N, default=60)
364 nowayout: Watchdog cannot be stopped once started
365 (default=kernel config parameter)
366 -------------------------------------------------
368 timeout: Watchdog timeout in power of two seconds.
369 (1 <= timeout <= 128, default=64)
370 nowayout: Watchdog cannot be stopped once started
371 (default=kernel config parameter)
372 -------------------------------------------------
374 wdt_io: w83627hf/thf WDT io port (default 0x2E)
375 timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
376 nowayout: Watchdog cannot be stopped once started
377 (default=kernel config parameter)
378 -------------------------------------------------
380 wdt_io: w83697hf/hg WDT io port (default 0x2e, 0 = autodetect)
381 timeout: Watchdog timeout in seconds. 1<= timeout <=255 (default=60)
382 nowayout: Watchdog cannot be stopped once started
383 (default=kernel config parameter)
384 early_disable: Watchdog gets disabled at boot time (default=1)
385 -------------------------------------------------
387 wdt_io: w83697ug/uf WDT io port (default 0x2e)
388 timeout: Watchdog timeout in seconds. 1<= timeout <=255 (default=60)
389 nowayout: Watchdog cannot be stopped once started
390 (default=kernel config parameter)
391 -------------------------------------------------
393 timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
394 nowayout: Watchdog cannot be stopped once started
395 (default=kernel config parameter)
396 -------------------------------------------------
398 timeout: Watchdog timeout in seconds (15..7635), default=45)
399 testmode: Watchdog testmode (1 = no reboot), default=0
400 nowayout: Watchdog cannot be stopped once started
401 (default=kernel config parameter)
402 -------------------------------------------------
404 timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
405 nowayout: Watchdog cannot be stopped once started
406 (default=kernel config parameter)
407 -------------------------------------------------
409 soft_margin: Watchdog timeout in seconds (default=60)
410 -------------------------------------------------
412 timeout: Watchdog timeout in seconds (60..15300, default=60)
413 testmode: Watchdog testmode (1 = no reboot), default=0
414 nowayout: Watchdog cannot be stopped once started
415 (default=kernel config parameter)
416 -------------------------------------------------
418 nowayout: Watchdog cannot be stopped once started
419 (default=kernel config parameter)
420 -------------------------------------------------
422 nowayout: Watchdog cannot be stopped once started
423 (default=kernel config parameter)
424 -------------------------------------------------
426 timeout_ms: Watchdog timeout in milliseconds 1..180000, default=60000)
427 nowayout: Watchdog cannot be stopped once started
428 -------------------------------------------------