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/kernel-parameters.txt 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 timeout: Timeout value. Limited to be 1 or 2 seconds. (default=2)
45 nowayout: Watchdog cannot be stopped once started
46 (default=kernel config parameter)
47 -------------------------------------------------
49 wdt_time: Watchdog time in seconds. (default=5)
50 nowayout: Watchdog cannot be stopped once started
51 (default=kernel config parameter)
52 -------------------------------------------------
54 heartbeat: Watchdog heartbeats in seconds. (default = 15)
55 nowayout: Watchdog cannot be stopped once started
56 (default=kernel config parameter)
57 -------------------------------------------------
59 wdt_time: Watchdog time in seconds. (default=30)
60 nowayout: Watchdog cannot be stopped once started
61 (default=kernel config parameter)
62 -------------------------------------------------
64 timeout: Watchdog timeout in seconds. (1<=timeout<=((2^32)/SCLK), default=20)
65 nowayout: Watchdog cannot be stopped once started
66 (default=kernel config parameter)
67 -------------------------------------------------
69 margin: Watchdog margin in seconds (default 60s)
70 -------------------------------------------------
72 port: base address of watchdog card, default is 0x91
73 verbose: be verbose, default is 0 (no)
74 ticks: count down ticks, default is 10000
75 -------------------------------------------------
77 wd0_timeout: Default watchdog0 timeout in 1/10secs
78 wd1_timeout: Default watchdog1 timeout in 1/10secs
79 wd2_timeout: Default watchdog2 timeout in 1/10secs
80 -------------------------------------------------
82 timeout: Watchdog timeout in seconds. 2<= timeout <=131, default=2.048s
83 nowayout: Watchdog cannot be stopped once started
84 (default=kernel config parameter)
85 -------------------------------------------------
87 heartbeat: Watchdog heartbeat period in seconds from 1 to 600, default 60
88 -------------------------------------------------
90 nowayout: Watchdog cannot be stopped once started
91 timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=TBD)
92 -------------------------------------------------
94 nowayout: Watchdog cannot be stopped once started
95 (default=kernel config parameter)
96 io: Eurotech WDT io port (default=0x3f0)
97 irq: Eurotech WDT irq (default=10)
98 ev: Eurotech WDT event type (default is `int')
99 -------------------------------------------------
101 nowayout: Watchdog cannot be stopped once started
102 (default=kernel config parameter)
103 -------------------------------------------------
105 timeout: Watchdog timeout in seconds. 1<= timeout <=131, default=60.
106 nowayout: Watchdog cannot be stopped once started
107 (default=kernel config parameter)
108 -------------------------------------------------
110 heartbeat: Watchdog heartbeat in seconds. (1<heartbeat<2046, default=30)
111 nowayout: Watchdog cannot be stopped once started
112 (default=kernel config parameter)
113 -------------------------------------------------
115 heartbeat: Watchdog heartbeat in seconds.
116 (2<heartbeat<39 (TCO v1) or 613 (TCO v2), default=30)
117 nowayout: Watchdog cannot be stopped once started
118 (default=kernel config parameter)
119 -------------------------------------------------
121 vendorsupport: iTCO vendor specific support mode, default=0 (none),
122 1=SuperMicro Pent3, 2=SuperMicro Pent4+, 911=Broken SMI BIOS
123 -------------------------------------------------
125 timeout: Watchdog timeout in seconds. 0<= timeout <=30, default=30.
126 nowayout: Watchdog cannot be stopped once started
127 (default=kernel config parameter)
128 -------------------------------------------------
130 nowayout: Watchdog cannot be stopped once started
131 (default=kernel config parameter)
132 -------------------------------------------------
134 timeout: Watchdog timeout in seconds (default 60 s)
135 nowayout: Watchdog cannot be stopped once started
136 (default=kernel config parameter)
137 -------------------------------------------------
139 nowayout: Watchdog cannot be stopped once started
140 (default=kernel config parameter)
141 -------------------------------------------------
143 nowayout: Watchdog cannot be stopped once started
144 (default=kernel config parameter)
145 -------------------------------------------------
147 margin: Watchdog margin in seconds (default 60)
148 nowayout: Disable watchdog shutdown on close
149 (default=kernel config parameter)
150 -------------------------------------------------
152 nogameport: Forbid the activation of game port, default=0
153 nocir: Forbid the use of CIR (workaround for some buggy setups); set to 1 if
154 system resets despite watchdog daemon running, default=0
155 exclusive: Watchdog exclusive device open, default=1
156 timeout: Watchdog timeout in seconds, default=60
157 testmode: Watchdog test mode (1 = no reboot), default=0
158 nowayout: Watchdog cannot be stopped once started
159 (default=kernel config parameter)
160 -------------------------------------------------
162 heartbeat: Watchdog heartbeat in seconds (default 60s)
163 nowayout: Watchdog cannot be stopped once started
164 (default=kernel config parameter)
165 -------------------------------------------------
167 heartbeat: Watchdog heartbeat in seconds (default 60s)
168 nowayout: Watchdog cannot be stopped once started
169 (default=kernel config parameter)
170 -------------------------------------------------
172 wdt_time: Watchdog time in seconds. (default=5)
173 nowayout: Watchdog cannot be stopped once started
174 (default=kernel config parameter)
175 -------------------------------------------------
177 nowayout: Watchdog cannot be stopped once started
178 (default=kernel config parameter)
179 action: after watchdog resets, generate:
180 0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI
181 -------------------------------------------------
183 heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 60
184 nowayout: Watchdog cannot be stopped once started
185 (default=kernel config parameter)
186 nodelay: Force selection of a timeout setting without initial delay
187 (max6373/74 only, default=0)
188 -------------------------------------------------
190 nowayout: Watchdog cannot be stopped once started
191 (default=kernel config parameter)
192 -------------------------------------------------
194 timeout: Watchdog timeout in ticks. (0<timeout<65536, default=65535)
195 reset: Watchdog Interrupt/Reset Mode. 0 = interrupt, 1 = reset
196 nowayout: Watchdog cannot be stopped once started
197 (default=kernel config parameter)
198 -------------------------------------------------
200 nowayout: Watchdog cannot be stopped once started
201 (default=kernel config parameter)
202 -------------------------------------------------
204 heartbeat: Watchdog heartbeats in seconds.
206 nowayout: Watchdog cannot be stopped once started
207 (default=kernel config parameter)
208 -------------------------------------------------
210 timer_margin: initial watchdog timeout (in seconds)
211 -------------------------------------------------
213 heartbeat: Initial watchdog heartbeat in seconds
214 nowayout: Watchdog cannot be stopped once started
215 (default=kernel config parameter)
216 -------------------------------------------------
218 io: pc87413 WDT I/O port (default: io).
219 timeout: Watchdog timeout in minutes (default=timeout).
220 nowayout: Watchdog cannot be stopped once started
221 (default=kernel config parameter)
222 -------------------------------------------------
224 heartbeat: Watchdog heartbeats in seconds. (default = 15)
225 nowayout: Watchdog cannot be stopped once started
226 (default=kernel config parameter)
227 -------------------------------------------------
229 heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 19
230 nowayout: Set to 1 to keep watchdog running after device release
231 -------------------------------------------------
233 timeout: Watchdog timeout in Mhz. (68Mhz clock), default=2040000000 (30 seconds)
234 nowayout: Watchdog cannot be stopped once started
235 (default=kernel config parameter)
236 start_enabled: Watchdog is started on module insertion (default=1)
237 -------------------------------------------------
239 timeout: Watchdog timeout value, in seconds (default=20)
240 nowayout: Watchdog cannot be stopped once started
241 (default=kernel config parameter)
242 -------------------------------------------------
244 riowd_timeout: Watchdog timeout in minutes (default=1)
245 -------------------------------------------------
247 tmr_margin: Watchdog tmr_margin in seconds. (default=15)
248 tmr_atboot: Watchdog is started at boot time if set to 1, default=0
249 nowayout: Watchdog cannot be stopped once started
250 (default=kernel config parameter)
251 soft_noboot: Watchdog action, set to 1 to ignore reboots, 0 to reboot
252 debug: Watchdog debug, set to >1 for debug, (default 0)
253 -------------------------------------------------
255 margin: Watchdog margin in seconds (default 60s)
256 -------------------------------------------------
258 timeout: Watchdog timeout in microseconds (max/default 8388607 or 8.3ish secs)
259 -------------------------------------------------
261 wdt_stop: SBC60xx WDT 'stop' io port (default 0x45)
262 wdt_start: SBC60xx WDT 'start' io port (default 0x443)
263 timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
264 nowayout: Watchdog cannot be stopped once started
265 (default=kernel config parameter)
266 -------------------------------------------------
268 timeout: Watchdog timeout in seconds. (1<=timeout<=255, default=30)
269 nowayout: Disable watchdog when closing device file
270 -------------------------------------------------
272 timeout: Index into timeout table (0-63) (default=27 (60s))
273 nowayout: Watchdog cannot be stopped once started
274 (default=kernel config parameter)
275 -------------------------------------------------
277 nowayout: Watchdog cannot be stopped once started
278 (default=kernel config parameter)
279 -------------------------------------------------
281 margin: Watchdog margin in seconds (default 60s)
282 nowayout: Watchdog cannot be stopped once started
283 -------------------------------------------------
285 isapnp: When set to 0 driver ISA PnP support will be disabled (default=1)
287 timeout: range is 0-255 minutes, default is 1
288 nowayout: Watchdog cannot be stopped once started
289 (default=kernel config parameter)
290 -------------------------------------------------
292 timeout: Watchdog timeout in seconds. (1 <= timeout <= 3600, default=30)
293 nowayout: Watchdog cannot be stopped once started
294 (default=kernel config parameter)
295 -------------------------------------------------
297 force_id: Override the detected device ID
298 therm_trip: Should a ThermTrip trigger the reset generator
299 timeout: Watchdog timeout in seconds. 1<= timeout <=15300, default=60
300 nowayout: Watchdog cannot be stopped once started
301 (default=kernel config parameter)
302 -------------------------------------------------
304 margin: Watchdog margin in seconds
305 nowayout: Disable watchdog shutdown on close
306 -------------------------------------------------
308 clock_division_ratio: Clock division ratio. Valid ranges are from 0x5 (1.31ms)
309 to 0x7 (5.25ms). (default=7)
310 heartbeat: Watchdog heartbeat in seconds. (1 <= heartbeat <= 3600, default=30
311 nowayout: Watchdog cannot be stopped once started
312 (default=kernel config parameter)
313 -------------------------------------------------
315 timeout: range is 1-255 units, default is 60
316 nowayout: Watchdog cannot be stopped once started
317 (default=kernel config parameter)
318 -------------------------------------------------
320 soft_margin: Watchdog soft_margin in seconds.
321 (0 < soft_margin < 65536, default=60)
322 nowayout: Watchdog cannot be stopped once started
323 (default=kernel config parameter)
324 soft_noboot: Softdog action, set to 1 to ignore reboots, 0 to reboot
326 -------------------------------------------------
328 heartbeat: Watchdog heartbeat period in seconds from 1 to 4194304, default 19
329 -------------------------------------------------
331 heartbeat: Watchdog heartbeats in seconds. (default = 120)
332 nowayout: Watchdog cannot be stopped once started
333 (default=kernel config parameter)
334 -------------------------------------------------
336 timeout: Watchdog timeout in seconds. (1 <= timeout <= 8, default=8)
337 nowayout: Disable watchdog shutdown on close
338 -------------------------------------------------
340 nowayout: Watchdog cannot be stopped once started
341 (default=kernel config parameter)
342 -------------------------------------------------
344 timeout: Watchdog timeout in seconds. (0<timeout<N, default=60)
345 nowayout: Watchdog cannot be stopped once started
346 (default=kernel config parameter)
347 -------------------------------------------------
349 wdt_io: w83627hf/thf WDT io port (default 0x2E)
350 timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
351 nowayout: Watchdog cannot be stopped once started
352 (default=kernel config parameter)
353 -------------------------------------------------
355 wdt_io: w83697hf/hg WDT io port (default 0x2e, 0 = autodetect)
356 timeout: Watchdog timeout in seconds. 1<= timeout <=255 (default=60)
357 nowayout: Watchdog cannot be stopped once started
358 (default=kernel config parameter)
359 early_disable: Watchdog gets disabled at boot time (default=1)
360 -------------------------------------------------
362 wdt_io: w83697ug/uf WDT io port (default 0x2e)
363 timeout: Watchdog timeout in seconds. 1<= timeout <=255 (default=60)
364 nowayout: Watchdog cannot be stopped once started
365 (default=kernel config parameter)
366 -------------------------------------------------
368 timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
369 nowayout: Watchdog cannot be stopped once started
370 (default=kernel config parameter)
371 -------------------------------------------------
373 timeout: Watchdog timeout in seconds (15..7635), default=45)
374 testmode: Watchdog testmode (1 = no reboot), default=0
375 nowayout: Watchdog cannot be stopped once started
376 (default=kernel config parameter)
377 -------------------------------------------------
379 timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
380 nowayout: Watchdog cannot be stopped once started
381 (default=kernel config parameter)
382 -------------------------------------------------
384 soft_margin: Watchdog timeout in seconds (default=60)
385 -------------------------------------------------
387 timeout: Watchdog timeout in seconds (60..15300, default=60)
388 testmode: Watchdog testmode (1 = no reboot), default=0
389 nowayout: Watchdog cannot be stopped once started
390 (default=kernel config parameter)
391 -------------------------------------------------
393 nowayout: Watchdog cannot be stopped once started
394 (default=kernel config parameter)
395 -------------------------------------------------
397 nowayout: Watchdog cannot be stopped once started
398 (default=kernel config parameter)
399 -------------------------------------------------