| blob | beea975980f63236c7ca507aeb7fd7a2c610ef81 |
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 bfin_wdt:
59 timeout: Watchdog timeout in seconds. (1<=timeout<=((2^32)/SCLK), default=20)
60 nowayout: Watchdog cannot be stopped once started
61 (default=kernel config parameter)
62 -------------------------------------------------
63 coh901327_wdt:
64 margin: Watchdog margin in seconds (default 60s)
65 -------------------------------------------------
66 cpu5wdt:
67 port: base address of watchdog card, default is 0x91
68 verbose: be verbose, default is 0 (no)
69 ticks: count down ticks, default is 10000
70 -------------------------------------------------
71 cpwd:
72 wd0_timeout: Default watchdog0 timeout in 1/10secs
73 wd1_timeout: Default watchdog1 timeout in 1/10secs
74 wd2_timeout: Default watchdog2 timeout in 1/10secs
75 -------------------------------------------------
76 da9052wdt:
77 timeout: Watchdog timeout in seconds. 2<= timeout <=131, default=2.048s
78 nowayout: Watchdog cannot be stopped once started
79 (default=kernel config parameter)
80 -------------------------------------------------
81 davinci_wdt:
82 heartbeat: Watchdog heartbeat period in seconds from 1 to 600, default 60
83 -------------------------------------------------
84 ebc-c384_wdt:
85 timeout: Watchdog timeout in seconds. (1<=timeout<=15300, default=60)
86 nowayout: Watchdog cannot be stopped once started
87 -------------------------------------------------
88 ep93xx_wdt:
89 nowayout: Watchdog cannot be stopped once started
90 timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=TBD)
91 -------------------------------------------------
92 eurotechwdt:
93 nowayout: Watchdog cannot be stopped once started
94 (default=kernel config parameter)
95 io: Eurotech WDT io port (default=0x3f0)
96 irq: Eurotech WDT irq (default=10)
97 ev: Eurotech WDT event type (default is `int')
98 -------------------------------------------------
99 gef_wdt:
100 nowayout: Watchdog cannot be stopped once started
101 (default=kernel config parameter)
102 -------------------------------------------------
103 geodewdt:
104 timeout: Watchdog timeout in seconds. 1<= timeout <=131, default=60.
105 nowayout: Watchdog cannot be stopped once started
106 (default=kernel config parameter)
107 -------------------------------------------------
108 i6300esb:
109 heartbeat: Watchdog heartbeat in seconds. (1<heartbeat<2046, default=30)
110 nowayout: Watchdog cannot be stopped once started
111 (default=kernel config parameter)
112 -------------------------------------------------
113 iTCO_wdt:
114 heartbeat: Watchdog heartbeat in seconds.
115 (2<heartbeat<39 (TCO v1) or 613 (TCO v2), default=30)
116 nowayout: Watchdog cannot be stopped once started
117 (default=kernel config parameter)
118 -------------------------------------------------
119 iTCO_vendor_support:
120 vendorsupport: iTCO vendor specific support mode, default=0 (none),
121 1=SuperMicro Pent3, 2=SuperMicro Pent4+, 911=Broken SMI BIOS
122 -------------------------------------------------
123 ib700wdt:
124 timeout: Watchdog timeout in seconds. 0<= timeout <=30, default=30.
125 nowayout: Watchdog cannot be stopped once started
126 (default=kernel config parameter)
127 -------------------------------------------------
128 ibmasr:
129 nowayout: Watchdog cannot be stopped once started
130 (default=kernel config parameter)
131 -------------------------------------------------
132 imx2_wdt:
133 timeout: Watchdog timeout in seconds (default 60 s)
134 nowayout: Watchdog cannot be stopped once started
135 (default=kernel config parameter)
136 -------------------------------------------------
137 indydog:
138 nowayout: Watchdog cannot be stopped once started
139 (default=kernel config parameter)
140 -------------------------------------------------
141 iop_wdt:
142 nowayout: Watchdog cannot be stopped once started
143 (default=kernel config parameter)
144 -------------------------------------------------
145 it8712f_wdt:
146 margin: Watchdog margin in seconds (default 60)
147 nowayout: Disable watchdog shutdown on close
148 (default=kernel config parameter)
149 -------------------------------------------------
150 it87_wdt:
151 nogameport: Forbid the activation of game port, default=0
152 nocir: Forbid the use of CIR (workaround for some buggy setups); set to 1 if
153 system resets despite watchdog daemon running, default=0
154 exclusive: Watchdog exclusive device open, default=1
155 timeout: Watchdog timeout in seconds, default=60
156 testmode: Watchdog test mode (1 = no reboot), default=0
157 nowayout: Watchdog cannot be stopped once started
158 (default=kernel config parameter)
159 -------------------------------------------------
160 ixp4xx_wdt:
161 heartbeat: Watchdog heartbeat in seconds (default 60s)
162 nowayout: Watchdog cannot be stopped once started
163 (default=kernel config parameter)
164 -------------------------------------------------
165 ks8695_wdt:
166 wdt_time: Watchdog time in seconds. (default=5)
167 nowayout: Watchdog cannot be stopped once started
168 (default=kernel config parameter)
169 -------------------------------------------------
170 machzwd:
171 nowayout: Watchdog cannot be stopped once started
172 (default=kernel config parameter)
173 action: after watchdog resets, generate:
174 0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI
175 -------------------------------------------------
176 max63xx_wdt:
177 heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 60
178 nowayout: Watchdog cannot be stopped once started
179 (default=kernel config parameter)
180 nodelay: Force selection of a timeout setting without initial delay
181 (max6373/74 only, default=0)
182 -------------------------------------------------
183 mixcomwd:
184 nowayout: Watchdog cannot be stopped once started
185 (default=kernel config parameter)
186 -------------------------------------------------
187 mpc8xxx_wdt:
188 timeout: Watchdog timeout in ticks. (0<timeout<65536, default=65535)
189 reset: Watchdog Interrupt/Reset Mode. 0 = interrupt, 1 = reset
190 nowayout: Watchdog cannot be stopped once started
191 (default=kernel config parameter)
192 -------------------------------------------------
193 mv64x60_wdt:
194 nowayout: Watchdog cannot be stopped once started
195 (default=kernel config parameter)
196 -------------------------------------------------
197 ni903x_wdt:
198 timeout: Initial watchdog timeout in seconds (0<timeout<516, default=60)
199 nowayout: Watchdog cannot be stopped once started
200 (default=kernel config parameter)
201 -------------------------------------------------
202 nic7018_wdt:
203 timeout: Initial watchdog timeout in seconds (0<timeout<464, default=80)
204 nowayout: Watchdog cannot be stopped once started
205 (default=kernel config parameter)
206 -------------------------------------------------
207 nuc900_wdt:
208 heartbeat: Watchdog heartbeats in seconds.
209 (default = 15)
210 nowayout: Watchdog cannot be stopped once started
211 (default=kernel config parameter)
212 -------------------------------------------------
213 omap_wdt:
214 timer_margin: initial watchdog timeout (in seconds)
215 early_enable: Watchdog is started on module insertion (default=0
216 nowayout: Watchdog cannot be stopped once started
217 (default=kernel config parameter)
218 -------------------------------------------------
219 orion_wdt:
220 heartbeat: Initial watchdog heartbeat in seconds
221 nowayout: Watchdog cannot be stopped once started
222 (default=kernel config parameter)
223 -------------------------------------------------
224 pc87413_wdt:
225 io: pc87413 WDT I/O port (default: io).
226 timeout: Watchdog timeout in minutes (default=timeout).
227 nowayout: Watchdog cannot be stopped once started
228 (default=kernel config parameter)
229 -------------------------------------------------
230 pika_wdt:
231 heartbeat: Watchdog heartbeats in seconds. (default = 15)
232 nowayout: Watchdog cannot be stopped once started
233 (default=kernel config parameter)
234 -------------------------------------------------
235 pnx4008_wdt:
236 heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 19
237 nowayout: Set to 1 to keep watchdog running after device release
238 -------------------------------------------------
239 pnx833x_wdt:
240 timeout: Watchdog timeout in Mhz. (68Mhz clock), default=2040000000 (30 seconds)
241 nowayout: Watchdog cannot be stopped once started
242 (default=kernel config parameter)
243 start_enabled: Watchdog is started on module insertion (default=1)
244 -------------------------------------------------
245 rc32434_wdt:
246 timeout: Watchdog timeout value, in seconds (default=20)
247 nowayout: Watchdog cannot be stopped once started
248 (default=kernel config parameter)
249 -------------------------------------------------
250 riowd:
251 riowd_timeout: Watchdog timeout in minutes (default=1)
252 -------------------------------------------------
253 s3c2410_wdt:
254 tmr_margin: Watchdog tmr_margin in seconds. (default=15)
255 tmr_atboot: Watchdog is started at boot time if set to 1, default=0
256 nowayout: Watchdog cannot be stopped once started
257 (default=kernel config parameter)
258 soft_noboot: Watchdog action, set to 1 to ignore reboots, 0 to reboot
259 debug: Watchdog debug, set to >1 for debug, (default 0)
260 -------------------------------------------------
261 sa1100_wdt:
262 margin: Watchdog margin in seconds (default 60s)
263 -------------------------------------------------
264 sb_wdog:
265 timeout: Watchdog timeout in microseconds (max/default 8388607 or 8.3ish secs)
266 -------------------------------------------------
267 sbc60xxwdt:
268 wdt_stop: SBC60xx WDT 'stop' io port (default 0x45)
269 wdt_start: SBC60xx WDT 'start' io port (default 0x443)
270 timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
271 nowayout: Watchdog cannot be stopped once started
272 (default=kernel config parameter)
273 -------------------------------------------------
274 sbc7240_wdt:
275 timeout: Watchdog timeout in seconds. (1<=timeout<=255, default=30)
276 nowayout: Disable watchdog when closing device file
277 -------------------------------------------------
278 sbc8360:
279 timeout: Index into timeout table (0-63) (default=27 (60s))
280 nowayout: Watchdog cannot be stopped once started
281 (default=kernel config parameter)
282 -------------------------------------------------
283 sbc_epx_c3:
284 nowayout: Watchdog cannot be stopped once started
285 (default=kernel config parameter)
286 -------------------------------------------------
287 sbc_fitpc2_wdt:
288 margin: Watchdog margin in seconds (default 60s)
289 nowayout: Watchdog cannot be stopped once started
290 -------------------------------------------------
291 sbsa_gwdt:
292 timeout: Watchdog timeout in seconds. (default 10s)
293 action: Watchdog action at the first stage timeout,
294 set to 0 to ignore, 1 to panic. (default=0)
295 nowayout: Watchdog cannot be stopped once started
296 (default=kernel config parameter)
297 -------------------------------------------------
298 sc1200wdt:
299 isapnp: When set to 0 driver ISA PnP support will be disabled (default=1)
300 io: io port
301 timeout: range is 0-255 minutes, default is 1
302 nowayout: Watchdog cannot be stopped once started
303 (default=kernel config parameter)
304 -------------------------------------------------
305 sc520_wdt:
306 timeout: Watchdog timeout in seconds. (1 <= timeout <= 3600, default=30)
307 nowayout: Watchdog cannot be stopped once started
308 (default=kernel config parameter)
309 -------------------------------------------------
310 sch311x_wdt:
311 force_id: Override the detected device ID
312 therm_trip: Should a ThermTrip trigger the reset generator
313 timeout: Watchdog timeout in seconds. 1<= timeout <=15300, default=60
314 nowayout: Watchdog cannot be stopped once started
315 (default=kernel config parameter)
316 -------------------------------------------------
317 scx200_wdt:
318 margin: Watchdog margin in seconds
319 nowayout: Disable watchdog shutdown on close
320 -------------------------------------------------
321 shwdt:
322 clock_division_ratio: Clock division ratio. Valid ranges are from 0x5 (1.31ms)
323 to 0x7 (5.25ms). (default=7)
324 heartbeat: Watchdog heartbeat in seconds. (1 <= heartbeat <= 3600, default=30
325 nowayout: Watchdog cannot be stopped once started
326 (default=kernel config parameter)
327 -------------------------------------------------
328 smsc37b787_wdt:
329 timeout: range is 1-255 units, default is 60
330 nowayout: Watchdog cannot be stopped once started
331 (default=kernel config parameter)
332 -------------------------------------------------
333 softdog:
334 soft_margin: Watchdog soft_margin in seconds.
335 (0 < soft_margin < 65536, default=60)
336 nowayout: Watchdog cannot be stopped once started
337 (default=kernel config parameter)
338 soft_noboot: Softdog action, set to 1 to ignore reboots, 0 to reboot
339 (default=0)
340 -------------------------------------------------
341 stmp3xxx_wdt:
342 heartbeat: Watchdog heartbeat period in seconds from 1 to 4194304, default 19
343 -------------------------------------------------
344 tegra_wdt:
345 heartbeat: Watchdog heartbeats in seconds. (default = 120)
346 nowayout: Watchdog cannot be stopped once started
347 (default=kernel config parameter)
348 -------------------------------------------------
349 ts72xx_wdt:
350 timeout: Watchdog timeout in seconds. (1 <= timeout <= 8, default=8)
351 nowayout: Disable watchdog shutdown on close
352 -------------------------------------------------
353 twl4030_wdt:
354 nowayout: Watchdog cannot be stopped once started
355 (default=kernel config parameter)
356 -------------------------------------------------
357 txx9wdt:
358 timeout: Watchdog timeout in seconds. (0<timeout<N, default=60)
359 nowayout: Watchdog cannot be stopped once started
360 (default=kernel config parameter)
361 -------------------------------------------------
362 uniphier_wdt:
363 timeout: Watchdog timeout in power of two seconds.
364 (1 <= timeout <= 128, default=64)
365 nowayout: Watchdog cannot be stopped once started
366 (default=kernel config parameter)
367 -------------------------------------------------
368 w83627hf_wdt:
369 wdt_io: w83627hf/thf WDT io port (default 0x2E)
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 -------------------------------------------------
374 w83877f_wdt:
375 timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
376 nowayout: Watchdog cannot be stopped once started
377 (default=kernel config parameter)
378 -------------------------------------------------
379 w83977f_wdt:
380 timeout: Watchdog timeout in seconds (15..7635), default=45)
381 testmode: Watchdog testmode (1 = no reboot), default=0
382 nowayout: Watchdog cannot be stopped once started
383 (default=kernel config parameter)
384 -------------------------------------------------
385 wafer5823wdt:
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 -------------------------------------------------
390 wdt285:
391 soft_margin: Watchdog timeout in seconds (default=60)
392 -------------------------------------------------
393 wdt977:
394 timeout: Watchdog timeout in seconds (60..15300, default=60)
395 testmode: Watchdog testmode (1 = no reboot), default=0
396 nowayout: Watchdog cannot be stopped once started
397 (default=kernel config parameter)
398 -------------------------------------------------
399 wm831x_wdt:
400 nowayout: Watchdog cannot be stopped once started
401 (default=kernel config parameter)
402 -------------------------------------------------
403 wm8350_wdt:
404 nowayout: Watchdog cannot be stopped once started
405 (default=kernel config parameter)
406 -------------------------------------------------
407 sun4v_wdt:
408 timeout_ms: Watchdog timeout in milliseconds 1..180000, default=60000)
409 nowayout: Watchdog cannot be stopped once started
410 -------------------------------------------------