| blob | e21850e270a0555417c0615f128da609e2e1e1ce |
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
4 file.
7 See Documentation/admin-guide/kernel-parameters.rst for information on
8 providing kernel parameters for builtin drivers versus loadable
9 modules.
12 -------------------------------------------------
13 acquirewdt:
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 -------------------------------------------------
19 advantechwdt:
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 -------------------------------------------------
26 alim1535_wdt:
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 -------------------------------------------------
31 alim7101_wdt:
32 timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30
33 use_gpio: Use the gpio watchdog (required by old cobalt boards).
34 default=0/off/no
35 nowayout: Watchdog cannot be stopped once started
36 (default=kernel config parameter)
37 -------------------------------------------------
38 ar7_wdt:
39 margin: Watchdog margin in seconds (default=60)
40 nowayout: Disable watchdog shutdown on close
41 (default=kernel config parameter)
42 -------------------------------------------------
43 at32ap700x_wdt:
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 -------------------------------------------------
48 at91rm9200_wdt:
49 wdt_time: Watchdog time in seconds. (default=5)
50 nowayout: Watchdog cannot be stopped once started
51 (default=kernel config parameter)
52 -------------------------------------------------
53 at91sam9_wdt:
54 heartbeat: Watchdog heartbeats in seconds. (default = 15)
55 nowayout: Watchdog cannot be stopped once started
56 (default=kernel config parameter)
57 -------------------------------------------------
58 bcm47xx_wdt:
59 wdt_time: Watchdog time in seconds. (default=30)
60 nowayout: Watchdog cannot be stopped once started
61 (default=kernel config parameter)
62 -------------------------------------------------
63 bfin_wdt:
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 -------------------------------------------------
68 coh901327_wdt:
69 margin: Watchdog margin in seconds (default 60s)
70 -------------------------------------------------
71 cpu5wdt:
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 -------------------------------------------------
76 cpwd:
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 -------------------------------------------------
81 da9052wdt:
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 -------------------------------------------------
86 davinci_wdt:
87 heartbeat: Watchdog heartbeat period in seconds from 1 to 600, default 60
88 -------------------------------------------------
89 ebc-c384_wdt:
90 timeout: Watchdog timeout in seconds. (1<=timeout<=15300, default=60)
91 nowayout: Watchdog cannot be stopped once started
92 -------------------------------------------------
93 ep93xx_wdt:
94 nowayout: Watchdog cannot be stopped once started
95 timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=TBD)
96 -------------------------------------------------
97 eurotechwdt:
98 nowayout: Watchdog cannot be stopped once started
99 (default=kernel config parameter)
100 io: Eurotech WDT io port (default=0x3f0)
101 irq: Eurotech WDT irq (default=10)
102 ev: Eurotech WDT event type (default is `int')
103 -------------------------------------------------
104 gef_wdt:
105 nowayout: Watchdog cannot be stopped once started
106 (default=kernel config parameter)
107 -------------------------------------------------
108 geodewdt:
109 timeout: Watchdog timeout in seconds. 1<= timeout <=131, default=60.
110 nowayout: Watchdog cannot be stopped once started
111 (default=kernel config parameter)
112 -------------------------------------------------
113 i6300esb:
114 heartbeat: Watchdog heartbeat in seconds. (1<heartbeat<2046, default=30)
115 nowayout: Watchdog cannot be stopped once started
116 (default=kernel config parameter)
117 -------------------------------------------------
118 iTCO_wdt:
119 heartbeat: Watchdog heartbeat in seconds.
120 (2<heartbeat<39 (TCO v1) or 613 (TCO v2), default=30)
121 nowayout: Watchdog cannot be stopped once started
122 (default=kernel config parameter)
123 -------------------------------------------------
124 iTCO_vendor_support:
125 vendorsupport: iTCO vendor specific support mode, default=0 (none),
126 1=SuperMicro Pent3, 2=SuperMicro Pent4+, 911=Broken SMI BIOS
127 -------------------------------------------------
128 ib700wdt:
129 timeout: Watchdog timeout in seconds. 0<= timeout <=30, default=30.
130 nowayout: Watchdog cannot be stopped once started
131 (default=kernel config parameter)
132 -------------------------------------------------
133 ibmasr:
134 nowayout: Watchdog cannot be stopped once started
135 (default=kernel config parameter)
136 -------------------------------------------------
137 imx2_wdt:
138 timeout: Watchdog timeout in seconds (default 60 s)
139 nowayout: Watchdog cannot be stopped once started
140 (default=kernel config parameter)
141 -------------------------------------------------
142 indydog:
143 nowayout: Watchdog cannot be stopped once started
144 (default=kernel config parameter)
145 -------------------------------------------------
146 iop_wdt:
147 nowayout: Watchdog cannot be stopped once started
148 (default=kernel config parameter)
149 -------------------------------------------------
150 it8712f_wdt:
151 margin: Watchdog margin in seconds (default 60)
152 nowayout: Disable watchdog shutdown on close
153 (default=kernel config parameter)
154 -------------------------------------------------
155 it87_wdt:
156 nogameport: Forbid the activation of game port, default=0
157 nocir: Forbid the use of CIR (workaround for some buggy setups); set to 1 if
158 system resets despite watchdog daemon running, default=0
159 exclusive: Watchdog exclusive device open, default=1
160 timeout: Watchdog timeout in seconds, default=60
161 testmode: Watchdog test mode (1 = no reboot), default=0
162 nowayout: Watchdog cannot be stopped once started
163 (default=kernel config parameter)
164 -------------------------------------------------
165 ixp2000_wdt:
166 heartbeat: Watchdog heartbeat in seconds (default 60s)
167 nowayout: Watchdog cannot be stopped once started
168 (default=kernel config parameter)
169 -------------------------------------------------
170 ixp4xx_wdt:
171 heartbeat: Watchdog heartbeat in seconds (default 60s)
172 nowayout: Watchdog cannot be stopped once started
173 (default=kernel config parameter)
174 -------------------------------------------------
175 ks8695_wdt:
176 wdt_time: Watchdog time in seconds. (default=5)
177 nowayout: Watchdog cannot be stopped once started
178 (default=kernel config parameter)
179 -------------------------------------------------
180 machzwd:
181 nowayout: Watchdog cannot be stopped once started
182 (default=kernel config parameter)
183 action: after watchdog resets, generate:
184 0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI
185 -------------------------------------------------
186 max63xx_wdt:
187 heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 60
188 nowayout: Watchdog cannot be stopped once started
189 (default=kernel config parameter)
190 nodelay: Force selection of a timeout setting without initial delay
191 (max6373/74 only, default=0)
192 -------------------------------------------------
193 mixcomwd:
194 nowayout: Watchdog cannot be stopped once started
195 (default=kernel config parameter)
196 -------------------------------------------------
197 mpc8xxx_wdt:
198 timeout: Watchdog timeout in ticks. (0<timeout<65536, default=65535)
199 reset: Watchdog Interrupt/Reset Mode. 0 = interrupt, 1 = reset
200 nowayout: Watchdog cannot be stopped once started
201 (default=kernel config parameter)
202 -------------------------------------------------
203 mv64x60_wdt:
204 nowayout: Watchdog cannot be stopped once started
205 (default=kernel config parameter)
206 -------------------------------------------------
207 ni903x_wdt:
208 timeout: Initial watchdog timeout in seconds (0<timeout<516, default=60)
209 nowayout: Watchdog cannot be stopped once started
210 (default=kernel config parameter)
211 -------------------------------------------------
212 nuc900_wdt:
213 heartbeat: Watchdog heartbeats in seconds.
214 (default = 15)
215 nowayout: Watchdog cannot be stopped once started
216 (default=kernel config parameter)
217 -------------------------------------------------
218 omap_wdt:
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 -------------------------------------------------
224 orion_wdt:
225 heartbeat: Initial watchdog heartbeat in seconds
226 nowayout: Watchdog cannot be stopped once started
227 (default=kernel config parameter)
228 -------------------------------------------------
229 pc87413_wdt:
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 -------------------------------------------------
235 pika_wdt:
236 heartbeat: Watchdog heartbeats in seconds. (default = 15)
237 nowayout: Watchdog cannot be stopped once started
238 (default=kernel config parameter)
239 -------------------------------------------------
240 pnx4008_wdt:
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 -------------------------------------------------
244 pnx833x_wdt:
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 -------------------------------------------------
250 rc32434_wdt:
251 timeout: Watchdog timeout value, in seconds (default=20)
252 nowayout: Watchdog cannot be stopped once started
253 (default=kernel config parameter)
254 -------------------------------------------------
255 riowd:
256 riowd_timeout: Watchdog timeout in minutes (default=1)
257 -------------------------------------------------
258 s3c2410_wdt:
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 -------------------------------------------------
266 sa1100_wdt:
267 margin: Watchdog margin in seconds (default 60s)
268 -------------------------------------------------
269 sb_wdog:
270 timeout: Watchdog timeout in microseconds (max/default 8388607 or 8.3ish secs)
271 -------------------------------------------------
272 sbc60xxwdt:
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 -------------------------------------------------
279 sbc7240_wdt:
280 timeout: Watchdog timeout in seconds. (1<=timeout<=255, default=30)
281 nowayout: Disable watchdog when closing device file
282 -------------------------------------------------
283 sbc8360:
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 -------------------------------------------------
288 sbc_epx_c3:
289 nowayout: Watchdog cannot be stopped once started
290 (default=kernel config parameter)
291 -------------------------------------------------
292 sbc_fitpc2_wdt:
293 margin: Watchdog margin in seconds (default 60s)
294 nowayout: Watchdog cannot be stopped once started
295 -------------------------------------------------
296 sbsa_gwdt:
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 -------------------------------------------------
303 sc1200wdt:
304 isapnp: When set to 0 driver ISA PnP support will be disabled (default=1)
305 io: io port
306 timeout: range is 0-255 minutes, default is 1
307 nowayout: Watchdog cannot be stopped once started
308 (default=kernel config parameter)
309 -------------------------------------------------
310 sc520_wdt:
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 -------------------------------------------------
315 sch311x_wdt:
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 -------------------------------------------------
322 scx200_wdt:
323 margin: Watchdog margin in seconds
324 nowayout: Disable watchdog shutdown on close
325 -------------------------------------------------
326 shwdt:
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 -------------------------------------------------
333 smsc37b787_wdt:
334 timeout: range is 1-255 units, default is 60
335 nowayout: Watchdog cannot be stopped once started
336 (default=kernel config parameter)
337 -------------------------------------------------
338 softdog:
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
344 (default=0)
345 -------------------------------------------------
346 stmp3xxx_wdt:
347 heartbeat: Watchdog heartbeat period in seconds from 1 to 4194304, default 19
348 -------------------------------------------------
349 tegra_wdt:
350 heartbeat: Watchdog heartbeats in seconds. (default = 120)
351 nowayout: Watchdog cannot be stopped once started
352 (default=kernel config parameter)
353 -------------------------------------------------
354 ts72xx_wdt:
355 timeout: Watchdog timeout in seconds. (1 <= timeout <= 8, default=8)
356 nowayout: Disable watchdog shutdown on close
357 -------------------------------------------------
358 twl4030_wdt:
359 nowayout: Watchdog cannot be stopped once started
360 (default=kernel config parameter)
361 -------------------------------------------------
362 txx9wdt:
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 -------------------------------------------------
367 w83627hf_wdt:
368 wdt_io: w83627hf/thf WDT io port (default 0x2E)
369 timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
370 nowayout: Watchdog cannot be stopped once started
371 (default=kernel config parameter)
372 -------------------------------------------------
373 w83697hf_wdt:
374 wdt_io: w83697hf/hg WDT io port (default 0x2e, 0 = autodetect)
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 early_disable: Watchdog gets disabled at boot time (default=1)
379 -------------------------------------------------
380 w83697ug_wdt:
381 wdt_io: w83697ug/uf WDT io port (default 0x2e)
382 timeout: Watchdog timeout in seconds. 1<= timeout <=255 (default=60)
383 nowayout: Watchdog cannot be stopped once started
384 (default=kernel config parameter)
385 -------------------------------------------------
386 w83877f_wdt:
387 timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
388 nowayout: Watchdog cannot be stopped once started
389 (default=kernel config parameter)
390 -------------------------------------------------
391 w83977f_wdt:
392 timeout: Watchdog timeout in seconds (15..7635), default=45)
393 testmode: Watchdog testmode (1 = no reboot), default=0
394 nowayout: Watchdog cannot be stopped once started
395 (default=kernel config parameter)
396 -------------------------------------------------
397 wafer5823wdt:
398 timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
399 nowayout: Watchdog cannot be stopped once started
400 (default=kernel config parameter)
401 -------------------------------------------------
402 wdt285:
403 soft_margin: Watchdog timeout in seconds (default=60)
404 -------------------------------------------------
405 wdt977:
406 timeout: Watchdog timeout in seconds (60..15300, default=60)
407 testmode: Watchdog testmode (1 = no reboot), default=0
408 nowayout: Watchdog cannot be stopped once started
409 (default=kernel config parameter)
410 -------------------------------------------------
411 wm831x_wdt:
412 nowayout: Watchdog cannot be stopped once started
413 (default=kernel config parameter)
414 -------------------------------------------------
415 wm8350_wdt:
416 nowayout: Watchdog cannot be stopped once started
417 (default=kernel config parameter)
418 -------------------------------------------------
419 sun4v_wdt:
420 timeout_ms: Watchdog timeout in milliseconds 1..180000, default=60000)
421 nowayout: Watchdog cannot be stopped once started
422 -------------------------------------------------