| blob | 6f9d7b4189170f25143d852d9cf2699af211f997 |
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 nic7018_wdt:
213 timeout: Initial watchdog timeout in seconds (0<timeout<464, default=80)
214 nowayout: Watchdog cannot be stopped once started
215 (default=kernel config parameter)
216 -------------------------------------------------
217 nuc900_wdt:
218 heartbeat: Watchdog heartbeats in seconds.
219 (default = 15)
220 nowayout: Watchdog cannot be stopped once started
221 (default=kernel config parameter)
222 -------------------------------------------------
223 omap_wdt:
224 timer_margin: initial watchdog timeout (in seconds)
225 early_enable: Watchdog is started on module insertion (default=0
226 nowayout: Watchdog cannot be stopped once started
227 (default=kernel config parameter)
228 -------------------------------------------------
229 orion_wdt:
230 heartbeat: Initial watchdog heartbeat in seconds
231 nowayout: Watchdog cannot be stopped once started
232 (default=kernel config parameter)
233 -------------------------------------------------
234 pc87413_wdt:
235 io: pc87413 WDT I/O port (default: io).
236 timeout: Watchdog timeout in minutes (default=timeout).
237 nowayout: Watchdog cannot be stopped once started
238 (default=kernel config parameter)
239 -------------------------------------------------
240 pika_wdt:
241 heartbeat: Watchdog heartbeats in seconds. (default = 15)
242 nowayout: Watchdog cannot be stopped once started
243 (default=kernel config parameter)
244 -------------------------------------------------
245 pnx4008_wdt:
246 heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 19
247 nowayout: Set to 1 to keep watchdog running after device release
248 -------------------------------------------------
249 pnx833x_wdt:
250 timeout: Watchdog timeout in Mhz. (68Mhz clock), default=2040000000 (30 seconds)
251 nowayout: Watchdog cannot be stopped once started
252 (default=kernel config parameter)
253 start_enabled: Watchdog is started on module insertion (default=1)
254 -------------------------------------------------
255 rc32434_wdt:
256 timeout: Watchdog timeout value, in seconds (default=20)
257 nowayout: Watchdog cannot be stopped once started
258 (default=kernel config parameter)
259 -------------------------------------------------
260 riowd:
261 riowd_timeout: Watchdog timeout in minutes (default=1)
262 -------------------------------------------------
263 s3c2410_wdt:
264 tmr_margin: Watchdog tmr_margin in seconds. (default=15)
265 tmr_atboot: Watchdog is started at boot time if set to 1, default=0
266 nowayout: Watchdog cannot be stopped once started
267 (default=kernel config parameter)
268 soft_noboot: Watchdog action, set to 1 to ignore reboots, 0 to reboot
269 debug: Watchdog debug, set to >1 for debug, (default 0)
270 -------------------------------------------------
271 sa1100_wdt:
272 margin: Watchdog margin in seconds (default 60s)
273 -------------------------------------------------
274 sb_wdog:
275 timeout: Watchdog timeout in microseconds (max/default 8388607 or 8.3ish secs)
276 -------------------------------------------------
277 sbc60xxwdt:
278 wdt_stop: SBC60xx WDT 'stop' io port (default 0x45)
279 wdt_start: SBC60xx WDT 'start' io port (default 0x443)
280 timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
281 nowayout: Watchdog cannot be stopped once started
282 (default=kernel config parameter)
283 -------------------------------------------------
284 sbc7240_wdt:
285 timeout: Watchdog timeout in seconds. (1<=timeout<=255, default=30)
286 nowayout: Disable watchdog when closing device file
287 -------------------------------------------------
288 sbc8360:
289 timeout: Index into timeout table (0-63) (default=27 (60s))
290 nowayout: Watchdog cannot be stopped once started
291 (default=kernel config parameter)
292 -------------------------------------------------
293 sbc_epx_c3:
294 nowayout: Watchdog cannot be stopped once started
295 (default=kernel config parameter)
296 -------------------------------------------------
297 sbc_fitpc2_wdt:
298 margin: Watchdog margin in seconds (default 60s)
299 nowayout: Watchdog cannot be stopped once started
300 -------------------------------------------------
301 sbsa_gwdt:
302 timeout: Watchdog timeout in seconds. (default 10s)
303 action: Watchdog action at the first stage timeout,
304 set to 0 to ignore, 1 to panic. (default=0)
305 nowayout: Watchdog cannot be stopped once started
306 (default=kernel config parameter)
307 -------------------------------------------------
308 sc1200wdt:
309 isapnp: When set to 0 driver ISA PnP support will be disabled (default=1)
310 io: io port
311 timeout: range is 0-255 minutes, default is 1
312 nowayout: Watchdog cannot be stopped once started
313 (default=kernel config parameter)
314 -------------------------------------------------
315 sc520_wdt:
316 timeout: Watchdog timeout in seconds. (1 <= timeout <= 3600, default=30)
317 nowayout: Watchdog cannot be stopped once started
318 (default=kernel config parameter)
319 -------------------------------------------------
320 sch311x_wdt:
321 force_id: Override the detected device ID
322 therm_trip: Should a ThermTrip trigger the reset generator
323 timeout: Watchdog timeout in seconds. 1<= timeout <=15300, default=60
324 nowayout: Watchdog cannot be stopped once started
325 (default=kernel config parameter)
326 -------------------------------------------------
327 scx200_wdt:
328 margin: Watchdog margin in seconds
329 nowayout: Disable watchdog shutdown on close
330 -------------------------------------------------
331 shwdt:
332 clock_division_ratio: Clock division ratio. Valid ranges are from 0x5 (1.31ms)
333 to 0x7 (5.25ms). (default=7)
334 heartbeat: Watchdog heartbeat in seconds. (1 <= heartbeat <= 3600, default=30
335 nowayout: Watchdog cannot be stopped once started
336 (default=kernel config parameter)
337 -------------------------------------------------
338 smsc37b787_wdt:
339 timeout: range is 1-255 units, default is 60
340 nowayout: Watchdog cannot be stopped once started
341 (default=kernel config parameter)
342 -------------------------------------------------
343 softdog:
344 soft_margin: Watchdog soft_margin in seconds.
345 (0 < soft_margin < 65536, default=60)
346 nowayout: Watchdog cannot be stopped once started
347 (default=kernel config parameter)
348 soft_noboot: Softdog action, set to 1 to ignore reboots, 0 to reboot
349 (default=0)
350 -------------------------------------------------
351 stmp3xxx_wdt:
352 heartbeat: Watchdog heartbeat period in seconds from 1 to 4194304, default 19
353 -------------------------------------------------
354 tegra_wdt:
355 heartbeat: Watchdog heartbeats in seconds. (default = 120)
356 nowayout: Watchdog cannot be stopped once started
357 (default=kernel config parameter)
358 -------------------------------------------------
359 ts72xx_wdt:
360 timeout: Watchdog timeout in seconds. (1 <= timeout <= 8, default=8)
361 nowayout: Disable watchdog shutdown on close
362 -------------------------------------------------
363 twl4030_wdt:
364 nowayout: Watchdog cannot be stopped once started
365 (default=kernel config parameter)
366 -------------------------------------------------
367 txx9wdt:
368 timeout: Watchdog timeout in seconds. (0<timeout<N, default=60)
369 nowayout: Watchdog cannot be stopped once started
370 (default=kernel config parameter)
371 -------------------------------------------------
372 uniphier_wdt:
373 timeout: Watchdog timeout in power of two seconds.
374 (1 <= timeout <= 128, default=64)
375 nowayout: Watchdog cannot be stopped once started
376 (default=kernel config parameter)
377 -------------------------------------------------
378 w83627hf_wdt:
379 wdt_io: w83627hf/thf WDT io port (default 0x2E)
380 timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
381 nowayout: Watchdog cannot be stopped once started
382 (default=kernel config parameter)
383 -------------------------------------------------
384 w83697hf_wdt:
385 wdt_io: w83697hf/hg WDT io port (default 0x2e, 0 = autodetect)
386 timeout: Watchdog timeout in seconds. 1<= timeout <=255 (default=60)
387 nowayout: Watchdog cannot be stopped once started
388 (default=kernel config parameter)
389 early_disable: Watchdog gets disabled at boot time (default=1)
390 -------------------------------------------------
391 w83697ug_wdt:
392 wdt_io: w83697ug/uf WDT io port (default 0x2e)
393 timeout: Watchdog timeout in seconds. 1<= timeout <=255 (default=60)
394 nowayout: Watchdog cannot be stopped once started
395 (default=kernel config parameter)
396 -------------------------------------------------
397 w83877f_wdt:
398 timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
399 nowayout: Watchdog cannot be stopped once started
400 (default=kernel config parameter)
401 -------------------------------------------------
402 w83977f_wdt:
403 timeout: Watchdog timeout in seconds (15..7635), default=45)
404 testmode: Watchdog testmode (1 = no reboot), default=0
405 nowayout: Watchdog cannot be stopped once started
406 (default=kernel config parameter)
407 -------------------------------------------------
408 wafer5823wdt:
409 timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
410 nowayout: Watchdog cannot be stopped once started
411 (default=kernel config parameter)
412 -------------------------------------------------
413 wdt285:
414 soft_margin: Watchdog timeout in seconds (default=60)
415 -------------------------------------------------
416 wdt977:
417 timeout: Watchdog timeout in seconds (60..15300, default=60)
418 testmode: Watchdog testmode (1 = no reboot), default=0
419 nowayout: Watchdog cannot be stopped once started
420 (default=kernel config parameter)
421 -------------------------------------------------
422 wm831x_wdt:
423 nowayout: Watchdog cannot be stopped once started
424 (default=kernel config parameter)
425 -------------------------------------------------
426 wm8350_wdt:
427 nowayout: Watchdog cannot be stopped once started
428 (default=kernel config parameter)
429 -------------------------------------------------
430 sun4v_wdt:
431 timeout_ms: Watchdog timeout in milliseconds 1..180000, default=60000)
432 nowayout: Watchdog cannot be stopped once started
433 -------------------------------------------------