| blob | 6d6200ea27b80429ae09c06e0539597590078947 |
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 at91rm9200_wdt:
44 wdt_time: Watchdog time in seconds. (default=5)
45 nowayout: Watchdog cannot be stopped once started
46 (default=kernel config parameter)
47 -------------------------------------------------
48 at91sam9_wdt:
49 heartbeat: Watchdog heartbeats in seconds. (default = 15)
50 nowayout: Watchdog cannot be stopped once started
51 (default=kernel config parameter)
52 -------------------------------------------------
53 bcm47xx_wdt:
54 wdt_time: Watchdog time in seconds. (default=30)
55 nowayout: Watchdog cannot be stopped once started
56 (default=kernel config parameter)
57 -------------------------------------------------
58 coh901327_wdt:
59 margin: Watchdog margin in seconds (default 60s)
60 -------------------------------------------------
61 cpu5wdt:
62 port: base address of watchdog card, default is 0x91
63 verbose: be verbose, default is 0 (no)
64 ticks: count down ticks, default is 10000
65 -------------------------------------------------
66 cpwd:
67 wd0_timeout: Default watchdog0 timeout in 1/10secs
68 wd1_timeout: Default watchdog1 timeout in 1/10secs
69 wd2_timeout: Default watchdog2 timeout in 1/10secs
70 -------------------------------------------------
71 da9052wdt:
72 timeout: Watchdog timeout in seconds. 2<= timeout <=131, default=2.048s
73 nowayout: Watchdog cannot be stopped once started
74 (default=kernel config parameter)
75 -------------------------------------------------
76 davinci_wdt:
77 heartbeat: Watchdog heartbeat period in seconds from 1 to 600, default 60
78 -------------------------------------------------
79 ebc-c384_wdt:
80 timeout: Watchdog timeout in seconds. (1<=timeout<=15300, default=60)
81 nowayout: Watchdog cannot be stopped once started
82 -------------------------------------------------
83 ep93xx_wdt:
84 nowayout: Watchdog cannot be stopped once started
85 timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=TBD)
86 -------------------------------------------------
87 eurotechwdt:
88 nowayout: Watchdog cannot be stopped once started
89 (default=kernel config parameter)
90 io: Eurotech WDT io port (default=0x3f0)
91 irq: Eurotech WDT irq (default=10)
92 ev: Eurotech WDT event type (default is `int')
93 -------------------------------------------------
94 gef_wdt:
95 nowayout: Watchdog cannot be stopped once started
96 (default=kernel config parameter)
97 -------------------------------------------------
98 geodewdt:
99 timeout: Watchdog timeout in seconds. 1<= timeout <=131, default=60.
100 nowayout: Watchdog cannot be stopped once started
101 (default=kernel config parameter)
102 -------------------------------------------------
103 i6300esb:
104 heartbeat: Watchdog heartbeat in seconds. (1<heartbeat<2046, default=30)
105 nowayout: Watchdog cannot be stopped once started
106 (default=kernel config parameter)
107 -------------------------------------------------
108 iTCO_wdt:
109 heartbeat: Watchdog heartbeat in seconds.
110 (2<heartbeat<39 (TCO v1) or 613 (TCO v2), default=30)
111 nowayout: Watchdog cannot be stopped once started
112 (default=kernel config parameter)
113 -------------------------------------------------
114 iTCO_vendor_support:
115 vendorsupport: iTCO vendor specific support mode, default=0 (none),
116 1=SuperMicro Pent3, 2=SuperMicro Pent4+, 911=Broken SMI BIOS
117 -------------------------------------------------
118 ib700wdt:
119 timeout: Watchdog timeout in seconds. 0<= timeout <=30, default=30.
120 nowayout: Watchdog cannot be stopped once started
121 (default=kernel config parameter)
122 -------------------------------------------------
123 ibmasr:
124 nowayout: Watchdog cannot be stopped once started
125 (default=kernel config parameter)
126 -------------------------------------------------
127 imx2_wdt:
128 timeout: Watchdog timeout in seconds (default 60 s)
129 nowayout: Watchdog cannot be stopped once started
130 (default=kernel config parameter)
131 -------------------------------------------------
132 indydog:
133 nowayout: Watchdog cannot be stopped once started
134 (default=kernel config parameter)
135 -------------------------------------------------
136 iop_wdt:
137 nowayout: Watchdog cannot be stopped once started
138 (default=kernel config parameter)
139 -------------------------------------------------
140 it8712f_wdt:
141 margin: Watchdog margin in seconds (default 60)
142 nowayout: Disable watchdog shutdown on close
143 (default=kernel config parameter)
144 -------------------------------------------------
145 it87_wdt:
146 nogameport: Forbid the activation of game port, default=0
147 nocir: Forbid the use of CIR (workaround for some buggy setups); set to 1 if
148 system resets despite watchdog daemon running, default=0
149 exclusive: Watchdog exclusive device open, default=1
150 timeout: Watchdog timeout in seconds, default=60
151 testmode: Watchdog test mode (1 = no reboot), default=0
152 nowayout: Watchdog cannot be stopped once started
153 (default=kernel config parameter)
154 -------------------------------------------------
155 ixp4xx_wdt:
156 heartbeat: Watchdog heartbeat in seconds (default 60s)
157 nowayout: Watchdog cannot be stopped once started
158 (default=kernel config parameter)
159 -------------------------------------------------
160 ks8695_wdt:
161 wdt_time: Watchdog time in seconds. (default=5)
162 nowayout: Watchdog cannot be stopped once started
163 (default=kernel config parameter)
164 -------------------------------------------------
165 machzwd:
166 nowayout: Watchdog cannot be stopped once started
167 (default=kernel config parameter)
168 action: after watchdog resets, generate:
169 0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI
170 -------------------------------------------------
171 max63xx_wdt:
172 heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 60
173 nowayout: Watchdog cannot be stopped once started
174 (default=kernel config parameter)
175 nodelay: Force selection of a timeout setting without initial delay
176 (max6373/74 only, default=0)
177 -------------------------------------------------
178 mixcomwd:
179 nowayout: Watchdog cannot be stopped once started
180 (default=kernel config parameter)
181 -------------------------------------------------
182 mpc8xxx_wdt:
183 timeout: Watchdog timeout in ticks. (0<timeout<65536, default=65535)
184 reset: Watchdog Interrupt/Reset Mode. 0 = interrupt, 1 = reset
185 nowayout: Watchdog cannot be stopped once started
186 (default=kernel config parameter)
187 -------------------------------------------------
188 mv64x60_wdt:
189 nowayout: Watchdog cannot be stopped once started
190 (default=kernel config parameter)
191 -------------------------------------------------
192 ni903x_wdt:
193 timeout: Initial watchdog timeout in seconds (0<timeout<516, default=60)
194 nowayout: Watchdog cannot be stopped once started
195 (default=kernel config parameter)
196 -------------------------------------------------
197 nic7018_wdt:
198 timeout: Initial watchdog timeout in seconds (0<timeout<464, default=80)
199 nowayout: Watchdog cannot be stopped once started
200 (default=kernel config parameter)
201 -------------------------------------------------
202 nuc900_wdt:
203 heartbeat: Watchdog heartbeats in seconds.
204 (default = 15)
205 nowayout: Watchdog cannot be stopped once started
206 (default=kernel config parameter)
207 -------------------------------------------------
208 omap_wdt:
209 timer_margin: initial watchdog timeout (in seconds)
210 early_enable: Watchdog is started on module insertion (default=0
211 nowayout: Watchdog cannot be stopped once started
212 (default=kernel config parameter)
213 -------------------------------------------------
214 orion_wdt:
215 heartbeat: Initial watchdog heartbeat in seconds
216 nowayout: Watchdog cannot be stopped once started
217 (default=kernel config parameter)
218 -------------------------------------------------
219 pc87413_wdt:
220 io: pc87413 WDT I/O port (default: io).
221 timeout: Watchdog timeout in minutes (default=timeout).
222 nowayout: Watchdog cannot be stopped once started
223 (default=kernel config parameter)
224 -------------------------------------------------
225 pika_wdt:
226 heartbeat: Watchdog heartbeats in seconds. (default = 15)
227 nowayout: Watchdog cannot be stopped once started
228 (default=kernel config parameter)
229 -------------------------------------------------
230 pnx4008_wdt:
231 heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 19
232 nowayout: Set to 1 to keep watchdog running after device release
233 -------------------------------------------------
234 pnx833x_wdt:
235 timeout: Watchdog timeout in Mhz. (68Mhz clock), default=2040000000 (30 seconds)
236 nowayout: Watchdog cannot be stopped once started
237 (default=kernel config parameter)
238 start_enabled: Watchdog is started on module insertion (default=1)
239 -------------------------------------------------
240 rc32434_wdt:
241 timeout: Watchdog timeout value, in seconds (default=20)
242 nowayout: Watchdog cannot be stopped once started
243 (default=kernel config parameter)
244 -------------------------------------------------
245 riowd:
246 riowd_timeout: Watchdog timeout in minutes (default=1)
247 -------------------------------------------------
248 s3c2410_wdt:
249 tmr_margin: Watchdog tmr_margin in seconds. (default=15)
250 tmr_atboot: Watchdog is started at boot time if set to 1, default=0
251 nowayout: Watchdog cannot be stopped once started
252 (default=kernel config parameter)
253 soft_noboot: Watchdog action, set to 1 to ignore reboots, 0 to reboot
254 debug: Watchdog debug, set to >1 for debug, (default 0)
255 -------------------------------------------------
256 sa1100_wdt:
257 margin: Watchdog margin in seconds (default 60s)
258 -------------------------------------------------
259 sb_wdog:
260 timeout: Watchdog timeout in microseconds (max/default 8388607 or 8.3ish secs)
261 -------------------------------------------------
262 sbc60xxwdt:
263 wdt_stop: SBC60xx WDT 'stop' io port (default 0x45)
264 wdt_start: SBC60xx WDT 'start' io port (default 0x443)
265 timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
266 nowayout: Watchdog cannot be stopped once started
267 (default=kernel config parameter)
268 -------------------------------------------------
269 sbc7240_wdt:
270 timeout: Watchdog timeout in seconds. (1<=timeout<=255, default=30)
271 nowayout: Disable watchdog when closing device file
272 -------------------------------------------------
273 sbc8360:
274 timeout: Index into timeout table (0-63) (default=27 (60s))
275 nowayout: Watchdog cannot be stopped once started
276 (default=kernel config parameter)
277 -------------------------------------------------
278 sbc_epx_c3:
279 nowayout: Watchdog cannot be stopped once started
280 (default=kernel config parameter)
281 -------------------------------------------------
282 sbc_fitpc2_wdt:
283 margin: Watchdog margin in seconds (default 60s)
284 nowayout: Watchdog cannot be stopped once started
285 -------------------------------------------------
286 sbsa_gwdt:
287 timeout: Watchdog timeout in seconds. (default 10s)
288 action: Watchdog action at the first stage timeout,
289 set to 0 to ignore, 1 to panic. (default=0)
290 nowayout: Watchdog cannot be stopped once started
291 (default=kernel config parameter)
292 -------------------------------------------------
293 sc1200wdt:
294 isapnp: When set to 0 driver ISA PnP support will be disabled (default=1)
295 io: io port
296 timeout: range is 0-255 minutes, default is 1
297 nowayout: Watchdog cannot be stopped once started
298 (default=kernel config parameter)
299 -------------------------------------------------
300 sc520_wdt:
301 timeout: Watchdog timeout in seconds. (1 <= timeout <= 3600, default=30)
302 nowayout: Watchdog cannot be stopped once started
303 (default=kernel config parameter)
304 -------------------------------------------------
305 sch311x_wdt:
306 force_id: Override the detected device ID
307 therm_trip: Should a ThermTrip trigger the reset generator
308 timeout: Watchdog timeout in seconds. 1<= timeout <=15300, default=60
309 nowayout: Watchdog cannot be stopped once started
310 (default=kernel config parameter)
311 -------------------------------------------------
312 scx200_wdt:
313 margin: Watchdog margin in seconds
314 nowayout: Disable watchdog shutdown on close
315 -------------------------------------------------
316 shwdt:
317 clock_division_ratio: Clock division ratio. Valid ranges are from 0x5 (1.31ms)
318 to 0x7 (5.25ms). (default=7)
319 heartbeat: Watchdog heartbeat in seconds. (1 <= heartbeat <= 3600, default=30
320 nowayout: Watchdog cannot be stopped once started
321 (default=kernel config parameter)
322 -------------------------------------------------
323 smsc37b787_wdt:
324 timeout: range is 1-255 units, default is 60
325 nowayout: Watchdog cannot be stopped once started
326 (default=kernel config parameter)
327 -------------------------------------------------
328 softdog:
329 soft_margin: Watchdog soft_margin in seconds.
330 (0 < soft_margin < 65536, default=60)
331 nowayout: Watchdog cannot be stopped once started
332 (default=kernel config parameter)
333 soft_noboot: Softdog action, set to 1 to ignore reboots, 0 to reboot
334 (default=0)
335 -------------------------------------------------
336 stmp3xxx_wdt:
337 heartbeat: Watchdog heartbeat period in seconds from 1 to 4194304, default 19
338 -------------------------------------------------
339 tegra_wdt:
340 heartbeat: Watchdog heartbeats in seconds. (default = 120)
341 nowayout: Watchdog cannot be stopped once started
342 (default=kernel config parameter)
343 -------------------------------------------------
344 ts72xx_wdt:
345 timeout: Watchdog timeout in seconds. (1 <= timeout <= 8, default=8)
346 nowayout: Disable watchdog shutdown on close
347 -------------------------------------------------
348 twl4030_wdt:
349 nowayout: Watchdog cannot be stopped once started
350 (default=kernel config parameter)
351 -------------------------------------------------
352 txx9wdt:
353 timeout: Watchdog timeout in seconds. (0<timeout<N, default=60)
354 nowayout: Watchdog cannot be stopped once started
355 (default=kernel config parameter)
356 -------------------------------------------------
357 uniphier_wdt:
358 timeout: Watchdog timeout in power of two seconds.
359 (1 <= timeout <= 128, default=64)
360 nowayout: Watchdog cannot be stopped once started
361 (default=kernel config parameter)
362 -------------------------------------------------
363 w83627hf_wdt:
364 wdt_io: w83627hf/thf WDT io port (default 0x2E)
365 timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
366 nowayout: Watchdog cannot be stopped once started
367 (default=kernel config parameter)
368 -------------------------------------------------
369 w83877f_wdt:
370 timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
371 nowayout: Watchdog cannot be stopped once started
372 (default=kernel config parameter)
373 -------------------------------------------------
374 w83977f_wdt:
375 timeout: Watchdog timeout in seconds (15..7635), default=45)
376 testmode: Watchdog testmode (1 = no reboot), default=0
377 nowayout: Watchdog cannot be stopped once started
378 (default=kernel config parameter)
379 -------------------------------------------------
380 wafer5823wdt:
381 timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
382 nowayout: Watchdog cannot be stopped once started
383 (default=kernel config parameter)
384 -------------------------------------------------
385 wdt285:
386 soft_margin: Watchdog timeout in seconds (default=60)
387 -------------------------------------------------
388 wdt977:
389 timeout: Watchdog timeout in seconds (60..15300, default=60)
390 testmode: Watchdog testmode (1 = no reboot), default=0
391 nowayout: Watchdog cannot be stopped once started
392 (default=kernel config parameter)
393 -------------------------------------------------
394 wm831x_wdt:
395 nowayout: Watchdog cannot be stopped once started
396 (default=kernel config parameter)
397 -------------------------------------------------
398 wm8350_wdt:
399 nowayout: Watchdog cannot be stopped once started
400 (default=kernel config parameter)
401 -------------------------------------------------
402 sun4v_wdt:
403 timeout_ms: Watchdog timeout in milliseconds 1..180000, default=60000)
404 nowayout: Watchdog cannot be stopped once started
405 -------------------------------------------------