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 heartbeat: Watchdog heartbeat period in seconds from 1 to 600, default 60
83 -------------------------------------------------
85 nowayout: Watchdog cannot be stopped once started
86 timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=TBD)
87 -------------------------------------------------
89 nowayout: Watchdog cannot be stopped once started
90 (default=kernel config parameter)
91 io: Eurotech WDT io port (default=0x3f0)
92 irq: Eurotech WDT irq (default=10)
93 ev: Eurotech WDT event type (default is `int')
94 -------------------------------------------------
96 nowayout: Watchdog cannot be stopped once started
97 (default=kernel config parameter)
98 -------------------------------------------------
100 timeout: Watchdog timeout in seconds. 1<= timeout <=131, default=60.
101 nowayout: Watchdog cannot be stopped once started
102 (default=kernel config parameter)
103 -------------------------------------------------
105 heartbeat: Watchdog heartbeat in seconds. (1<heartbeat<2046, default=30)
106 nowayout: Watchdog cannot be stopped once started
107 (default=kernel config parameter)
108 -------------------------------------------------
110 heartbeat: Watchdog heartbeat in seconds.
111 (2<heartbeat<39 (TCO v1) or 613 (TCO v2), default=30)
112 nowayout: Watchdog cannot be stopped once started
113 (default=kernel config parameter)
114 -------------------------------------------------
116 vendorsupport: iTCO vendor specific support mode, default=0 (none),
117 1=SuperMicro Pent3, 2=SuperMicro Pent4+, 911=Broken SMI BIOS
118 -------------------------------------------------
120 timeout: Watchdog timeout in seconds. 0<= timeout <=30, default=30.
121 nowayout: Watchdog cannot be stopped once started
122 (default=kernel config parameter)
123 -------------------------------------------------
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 nowayout: Watchdog cannot be stopped once started
134 (default=kernel config parameter)
135 -------------------------------------------------
137 margin: Watchdog margin in seconds (default 60)
138 nowayout: Disable watchdog shutdown on close
139 (default=kernel config parameter)
140 -------------------------------------------------
142 nogameport: Forbid the activation of game port, default=0
143 exclusive: Watchdog exclusive device open, default=1
144 timeout: Watchdog timeout in seconds, default=60
145 testmode: Watchdog test mode (1 = no reboot), default=0
146 nowayout: Watchdog cannot be stopped once started
147 (default=kernel config parameter)
148 -------------------------------------------------
150 heartbeat: Watchdog heartbeat in seconds (default 60s)
151 nowayout: Watchdog cannot be stopped once started
152 (default=kernel config parameter)
153 -------------------------------------------------
155 heartbeat: Watchdog heartbeat in seconds (default 60s)
156 nowayout: Watchdog cannot be stopped once started
157 (default=kernel config parameter)
158 -------------------------------------------------
160 wdt_time: Watchdog time in seconds. (default=5)
161 nowayout: Watchdog cannot be stopped once started
162 (default=kernel config parameter)
163 -------------------------------------------------
165 nowayout: Watchdog cannot be stopped once started
166 (default=kernel config parameter)
167 action: after watchdog resets, generate:
168 0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI
169 -------------------------------------------------
171 heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 60
172 nowayout: Watchdog cannot be stopped once started
173 (default=kernel config parameter)
174 nodelay: Force selection of a timeout setting without initial delay
175 (max6373/74 only, default=0)
176 -------------------------------------------------
178 nowayout: Watchdog cannot be stopped once started
179 (default=kernel config parameter)
180 -------------------------------------------------
182 timeout: Watchdog timeout in ticks. (0<timeout<65536, default=65535)
183 reset: Watchdog Interrupt/Reset Mode. 0 = interrupt, 1 = reset
184 nowayout: Watchdog cannot be stopped once started
185 (default=kernel config parameter)
186 -------------------------------------------------
188 mpcore_margin: MPcore timer margin in seconds.
189 (0 < mpcore_margin < 65536, default=60)
190 nowayout: Watchdog cannot be stopped once started
191 (default=kernel config parameter)
192 mpcore_noboot: MPcore watchdog action, set to 1 to ignore reboots,
193 0 to reboot (default=0
194 -------------------------------------------------
196 nowayout: Watchdog cannot be stopped once started
197 (default=kernel config parameter)
198 -------------------------------------------------
200 heartbeat: Watchdog heartbeats in seconds.
202 nowayout: Watchdog cannot be stopped once started
203 (default=kernel config parameter)
204 -------------------------------------------------
206 timer_margin: initial watchdog timeout (in seconds)
207 -------------------------------------------------
209 heartbeat: Initial watchdog heartbeat in seconds
210 nowayout: Watchdog cannot be stopped once started
211 (default=kernel config parameter)
212 -------------------------------------------------
214 io: pc87413 WDT I/O port (default: io).
215 timeout: Watchdog timeout in minutes (default=timeout).
216 nowayout: Watchdog cannot be stopped once started
217 (default=kernel config parameter)
218 -------------------------------------------------
220 heartbeat: Watchdog heartbeats in seconds. (default = 15)
221 nowayout: Watchdog cannot be stopped once started
222 (default=kernel config parameter)
223 -------------------------------------------------
225 heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 19
226 nowayout: Set to 1 to keep watchdog running after device release
227 -------------------------------------------------
229 timeout: Watchdog timeout in Mhz. (68Mhz clock), default=2040000000 (30 seconds)
230 nowayout: Watchdog cannot be stopped once started
231 (default=kernel config parameter)
232 start_enabled: Watchdog is started on module insertion (default=1)
233 -------------------------------------------------
235 timeout: Watchdog timeout value, in seconds (default=20)
236 nowayout: Watchdog cannot be stopped once started
237 (default=kernel config parameter)
238 -------------------------------------------------
240 riowd_timeout: Watchdog timeout in minutes (default=1)
241 -------------------------------------------------
243 tmr_margin: Watchdog tmr_margin in seconds. (default=15)
244 tmr_atboot: Watchdog is started at boot time if set to 1, default=0
245 nowayout: Watchdog cannot be stopped once started
246 (default=kernel config parameter)
247 soft_noboot: Watchdog action, set to 1 to ignore reboots, 0 to reboot
248 debug: Watchdog debug, set to >1 for debug, (default 0)
249 -------------------------------------------------
251 margin: Watchdog margin in seconds (default 60s)
252 -------------------------------------------------
254 timeout: Watchdog timeout in microseconds (max/default 8388607 or 8.3ish secs)
255 -------------------------------------------------
257 wdt_stop: SBC60xx WDT 'stop' io port (default 0x45)
258 wdt_start: SBC60xx WDT 'start' io port (default 0x443)
259 timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
260 nowayout: Watchdog cannot be stopped once started
261 (default=kernel config parameter)
262 -------------------------------------------------
264 timeout: Watchdog timeout in seconds. (1<=timeout<=255, default=30)
265 nowayout: Disable watchdog when closing device file
266 -------------------------------------------------
268 timeout: Index into timeout table (0-63) (default=27 (60s))
269 nowayout: Watchdog cannot be stopped once started
270 (default=kernel config parameter)
271 -------------------------------------------------
273 nowayout: Watchdog cannot be stopped once started
274 (default=kernel config parameter)
275 -------------------------------------------------
277 margin: Watchdog margin in seconds (default 60s)
278 nowayout: Watchdog cannot be stopped once started
279 -------------------------------------------------
281 isapnp: When set to 0 driver ISA PnP support will be disabled (default=1)
283 timeout: range is 0-255 minutes, default is 1
284 nowayout: Watchdog cannot be stopped once started
285 (default=kernel config parameter)
286 -------------------------------------------------
288 timeout: Watchdog timeout in seconds. (1 <= timeout <= 3600, default=30)
289 nowayout: Watchdog cannot be stopped once started
290 (default=kernel config parameter)
291 -------------------------------------------------
293 force_id: Override the detected device ID
294 therm_trip: Should a ThermTrip trigger the reset generator
295 timeout: Watchdog timeout in seconds. 1<= timeout <=15300, default=60
296 nowayout: Watchdog cannot be stopped once started
297 (default=kernel config parameter)
298 -------------------------------------------------
300 margin: Watchdog margin in seconds
301 nowayout: Disable watchdog shutdown on close
302 -------------------------------------------------
304 clock_division_ratio: Clock division ratio. Valid ranges are from 0x5 (1.31ms)
305 to 0x7 (5.25ms). (default=7)
306 heartbeat: Watchdog heartbeat in seconds. (1 <= heartbeat <= 3600, default=30
307 nowayout: Watchdog cannot be stopped once started
308 (default=kernel config parameter)
309 -------------------------------------------------
311 timeout: range is 1-255 units, default is 60
312 nowayout: Watchdog cannot be stopped once started
313 (default=kernel config parameter)
314 -------------------------------------------------
316 soft_margin: Watchdog soft_margin in seconds.
317 (0 < soft_margin < 65536, default=60)
318 nowayout: Watchdog cannot be stopped once started
319 (default=kernel config parameter)
320 soft_noboot: Softdog action, set to 1 to ignore reboots, 0 to reboot
322 -------------------------------------------------
324 heartbeat: Watchdog heartbeat period in seconds from 1 to 4194304, default 19
325 -------------------------------------------------
327 timeout: Watchdog timeout in seconds. (1 <= timeout <= 8, default=8)
328 nowayout: Disable watchdog shutdown on close
329 -------------------------------------------------
331 nowayout: Watchdog cannot be stopped once started
332 (default=kernel config parameter)
333 -------------------------------------------------
335 timeout: Watchdog timeout in seconds. (0<timeout<N, default=60)
336 nowayout: Watchdog cannot be stopped once started
337 (default=kernel config parameter)
338 -------------------------------------------------
340 wdt_io: w83627hf/thf WDT io port (default 0x2E)
341 timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
342 nowayout: Watchdog cannot be stopped once started
343 (default=kernel config parameter)
344 -------------------------------------------------
346 wdt_io: w83697hf/hg WDT io port (default 0x2e, 0 = autodetect)
347 timeout: Watchdog timeout in seconds. 1<= timeout <=255 (default=60)
348 nowayout: Watchdog cannot be stopped once started
349 (default=kernel config parameter)
350 early_disable: Watchdog gets disabled at boot time (default=1)
351 -------------------------------------------------
353 wdt_io: w83697ug/uf WDT io port (default 0x2e)
354 timeout: Watchdog timeout in seconds. 1<= timeout <=255 (default=60)
355 nowayout: Watchdog cannot be stopped once started
356 (default=kernel config parameter)
357 -------------------------------------------------
359 timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
360 nowayout: Watchdog cannot be stopped once started
361 (default=kernel config parameter)
362 -------------------------------------------------
364 timeout: Watchdog timeout in seconds (15..7635), default=45)
365 testmode: Watchdog testmode (1 = no reboot), default=0
366 nowayout: Watchdog cannot be stopped once started
367 (default=kernel config parameter)
368 -------------------------------------------------
370 timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
371 nowayout: Watchdog cannot be stopped once started
372 (default=kernel config parameter)
373 -------------------------------------------------
375 soft_margin: Watchdog timeout in seconds (default=60)
376 -------------------------------------------------
378 timeout: Watchdog timeout in seconds (60..15300, default=60)
379 testmode: Watchdog testmode (1 = no reboot), default=0
380 nowayout: Watchdog cannot be stopped once started
381 (default=kernel config parameter)
382 -------------------------------------------------
384 nowayout: Watchdog cannot be stopped once started
385 (default=kernel config parameter)
386 -------------------------------------------------
388 nowayout: Watchdog cannot be stopped once started
389 (default=kernel config parameter)
390 -------------------------------------------------