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 exclusive: Watchdog exclusive device open, default=1
154 timeout: Watchdog timeout in seconds, default=60
155 testmode: Watchdog test mode (1 = no reboot), default=0
156 nowayout: Watchdog cannot be stopped once started
157 (default=kernel config parameter)
158 -------------------------------------------------
160 heartbeat: Watchdog heartbeat in seconds (default 60s)
161 nowayout: Watchdog cannot be stopped once started
162 (default=kernel config parameter)
163 -------------------------------------------------
165 heartbeat: Watchdog heartbeat in seconds (default 60s)
166 nowayout: Watchdog cannot be stopped once started
167 (default=kernel config parameter)
168 -------------------------------------------------
170 wdt_time: Watchdog time in seconds. (default=5)
171 nowayout: Watchdog cannot be stopped once started
172 (default=kernel config parameter)
173 -------------------------------------------------
175 nowayout: Watchdog cannot be stopped once started
176 (default=kernel config parameter)
177 action: after watchdog resets, generate:
178 0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI
179 -------------------------------------------------
181 heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 60
182 nowayout: Watchdog cannot be stopped once started
183 (default=kernel config parameter)
184 nodelay: Force selection of a timeout setting without initial delay
185 (max6373/74 only, default=0)
186 -------------------------------------------------
188 nowayout: Watchdog cannot be stopped once started
189 (default=kernel config parameter)
190 -------------------------------------------------
192 timeout: Watchdog timeout in ticks. (0<timeout<65536, default=65535)
193 reset: Watchdog Interrupt/Reset Mode. 0 = interrupt, 1 = reset
194 nowayout: Watchdog cannot be stopped once started
195 (default=kernel config parameter)
196 -------------------------------------------------
198 nowayout: Watchdog cannot be stopped once started
199 (default=kernel config parameter)
200 -------------------------------------------------
202 heartbeat: Watchdog heartbeats in seconds.
204 nowayout: Watchdog cannot be stopped once started
205 (default=kernel config parameter)
206 -------------------------------------------------
208 timer_margin: initial watchdog timeout (in seconds)
209 -------------------------------------------------
211 heartbeat: Initial watchdog heartbeat in seconds
212 nowayout: Watchdog cannot be stopped once started
213 (default=kernel config parameter)
214 -------------------------------------------------
216 io: pc87413 WDT I/O port (default: io).
217 timeout: Watchdog timeout in minutes (default=timeout).
218 nowayout: Watchdog cannot be stopped once started
219 (default=kernel config parameter)
220 -------------------------------------------------
222 heartbeat: Watchdog heartbeats in seconds. (default = 15)
223 nowayout: Watchdog cannot be stopped once started
224 (default=kernel config parameter)
225 -------------------------------------------------
227 heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 19
228 nowayout: Set to 1 to keep watchdog running after device release
229 -------------------------------------------------
231 timeout: Watchdog timeout in Mhz. (68Mhz clock), default=2040000000 (30 seconds)
232 nowayout: Watchdog cannot be stopped once started
233 (default=kernel config parameter)
234 start_enabled: Watchdog is started on module insertion (default=1)
235 -------------------------------------------------
237 timeout: Watchdog timeout value, in seconds (default=20)
238 nowayout: Watchdog cannot be stopped once started
239 (default=kernel config parameter)
240 -------------------------------------------------
242 riowd_timeout: Watchdog timeout in minutes (default=1)
243 -------------------------------------------------
245 tmr_margin: Watchdog tmr_margin in seconds. (default=15)
246 tmr_atboot: Watchdog is started at boot time if set to 1, default=0
247 nowayout: Watchdog cannot be stopped once started
248 (default=kernel config parameter)
249 soft_noboot: Watchdog action, set to 1 to ignore reboots, 0 to reboot
250 debug: Watchdog debug, set to >1 for debug, (default 0)
251 -------------------------------------------------
253 margin: Watchdog margin in seconds (default 60s)
254 -------------------------------------------------
256 timeout: Watchdog timeout in microseconds (max/default 8388607 or 8.3ish secs)
257 -------------------------------------------------
259 wdt_stop: SBC60xx WDT 'stop' io port (default 0x45)
260 wdt_start: SBC60xx WDT 'start' io port (default 0x443)
261 timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
262 nowayout: Watchdog cannot be stopped once started
263 (default=kernel config parameter)
264 -------------------------------------------------
266 timeout: Watchdog timeout in seconds. (1<=timeout<=255, default=30)
267 nowayout: Disable watchdog when closing device file
268 -------------------------------------------------
270 timeout: Index into timeout table (0-63) (default=27 (60s))
271 nowayout: Watchdog cannot be stopped once started
272 (default=kernel config parameter)
273 -------------------------------------------------
275 nowayout: Watchdog cannot be stopped once started
276 (default=kernel config parameter)
277 -------------------------------------------------
279 margin: Watchdog margin in seconds (default 60s)
280 nowayout: Watchdog cannot be stopped once started
281 -------------------------------------------------
283 isapnp: When set to 0 driver ISA PnP support will be disabled (default=1)
285 timeout: range is 0-255 minutes, default is 1
286 nowayout: Watchdog cannot be stopped once started
287 (default=kernel config parameter)
288 -------------------------------------------------
290 timeout: Watchdog timeout in seconds. (1 <= timeout <= 3600, default=30)
291 nowayout: Watchdog cannot be stopped once started
292 (default=kernel config parameter)
293 -------------------------------------------------
295 force_id: Override the detected device ID
296 therm_trip: Should a ThermTrip trigger the reset generator
297 timeout: Watchdog timeout in seconds. 1<= timeout <=15300, default=60
298 nowayout: Watchdog cannot be stopped once started
299 (default=kernel config parameter)
300 -------------------------------------------------
302 margin: Watchdog margin in seconds
303 nowayout: Disable watchdog shutdown on close
304 -------------------------------------------------
306 clock_division_ratio: Clock division ratio. Valid ranges are from 0x5 (1.31ms)
307 to 0x7 (5.25ms). (default=7)
308 heartbeat: Watchdog heartbeat in seconds. (1 <= heartbeat <= 3600, default=30
309 nowayout: Watchdog cannot be stopped once started
310 (default=kernel config parameter)
311 -------------------------------------------------
313 timeout: range is 1-255 units, default is 60
314 nowayout: Watchdog cannot be stopped once started
315 (default=kernel config parameter)
316 -------------------------------------------------
318 soft_margin: Watchdog soft_margin in seconds.
319 (0 < soft_margin < 65536, default=60)
320 nowayout: Watchdog cannot be stopped once started
321 (default=kernel config parameter)
322 soft_noboot: Softdog action, set to 1 to ignore reboots, 0 to reboot
324 -------------------------------------------------
326 heartbeat: Watchdog heartbeat period in seconds from 1 to 4194304, default 19
327 -------------------------------------------------
329 timeout: Watchdog timeout in seconds. (1 <= timeout <= 8, default=8)
330 nowayout: Disable watchdog shutdown on close
331 -------------------------------------------------
333 nowayout: Watchdog cannot be stopped once started
334 (default=kernel config parameter)
335 -------------------------------------------------
337 timeout: Watchdog timeout in seconds. (0<timeout<N, default=60)
338 nowayout: Watchdog cannot be stopped once started
339 (default=kernel config parameter)
340 -------------------------------------------------
342 wdt_io: w83627hf/thf WDT io port (default 0x2E)
343 timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
344 nowayout: Watchdog cannot be stopped once started
345 (default=kernel config parameter)
346 -------------------------------------------------
348 wdt_io: w83697hf/hg WDT io port (default 0x2e, 0 = autodetect)
349 timeout: Watchdog timeout in seconds. 1<= timeout <=255 (default=60)
350 nowayout: Watchdog cannot be stopped once started
351 (default=kernel config parameter)
352 early_disable: Watchdog gets disabled at boot time (default=1)
353 -------------------------------------------------
355 wdt_io: w83697ug/uf WDT io port (default 0x2e)
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 -------------------------------------------------
361 timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
362 nowayout: Watchdog cannot be stopped once started
363 (default=kernel config parameter)
364 -------------------------------------------------
366 timeout: Watchdog timeout in seconds (15..7635), default=45)
367 testmode: Watchdog testmode (1 = no reboot), default=0
368 nowayout: Watchdog cannot be stopped once started
369 (default=kernel config parameter)
370 -------------------------------------------------
372 timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
373 nowayout: Watchdog cannot be stopped once started
374 (default=kernel config parameter)
375 -------------------------------------------------
377 soft_margin: Watchdog timeout in seconds (default=60)
378 -------------------------------------------------
380 timeout: Watchdog timeout in seconds (60..15300, default=60)
381 testmode: Watchdog testmode (1 = no reboot), default=0
382 nowayout: Watchdog cannot be stopped once started
383 (default=kernel config parameter)
384 -------------------------------------------------
386 nowayout: Watchdog cannot be stopped once started
387 (default=kernel config parameter)
388 -------------------------------------------------
390 nowayout: Watchdog cannot be stopped once started
391 (default=kernel config parameter)
392 -------------------------------------------------