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1This file provides information on the module parameters of many of
2the Linux watchdog drivers. Watchdog driver parameter specs should
3be listed here unless the driver has its own driver-specific information
4file.
5
6
7See Documentation/kernel-parameters.txt for information on
8providing kernel parameters for builtin drivers versus loadable
9modules.
10
11
12-------------------------------------------------
13acquirewdt:
14wdt_stop: Acquire WDT 'stop' io port (default 0x43)
15wdt_start: Acquire WDT 'start' io port (default 0x443)
16nowayout: Watchdog cannot be stopped once started
17 (default=kernel config parameter)
18-------------------------------------------------
19advantechwdt:
20wdt_stop: Advantech WDT 'stop' io port (default 0x443)
21wdt_start: Advantech WDT 'start' io port (default 0x443)
22timeout: Watchdog timeout in seconds. 1<= timeout <=63, default=60.
23nowayout: Watchdog cannot be stopped once started
24 (default=kernel config parameter)
25-------------------------------------------------
26alim1535_wdt:
27timeout: Watchdog timeout in seconds. (0 < timeout < 18000, default=60
28nowayout: Watchdog cannot be stopped once started
29 (default=kernel config parameter)
30-------------------------------------------------
31alim7101_wdt:
32timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30
33use_gpio: Use the gpio watchdog (required by old cobalt boards).
34 default=0/off/no
35nowayout: Watchdog cannot be stopped once started
36 (default=kernel config parameter)
37-------------------------------------------------
38ar7_wdt:
39margin: Watchdog margin in seconds (default=60)
40nowayout: Disable watchdog shutdown on close
41 (default=kernel config parameter)
42-------------------------------------------------
43at32ap700x_wdt:
44timeout: Timeout value. Limited to be 1 or 2 seconds. (default=2)
45nowayout: Watchdog cannot be stopped once started
46 (default=kernel config parameter)
47-------------------------------------------------
48at91rm9200_wdt:
49wdt_time: Watchdog time in seconds. (default=5)
50nowayout: Watchdog cannot be stopped once started
51 (default=kernel config parameter)
52-------------------------------------------------
53at91sam9_wdt:
54heartbeat: Watchdog heartbeats in seconds. (default = 15)
55nowayout: Watchdog cannot be stopped once started
56 (default=kernel config parameter)
57-------------------------------------------------
58bcm47xx_wdt:
59wdt_time: Watchdog time in seconds. (default=30)
60nowayout: Watchdog cannot be stopped once started
61 (default=kernel config parameter)
62-------------------------------------------------
63bfin_wdt:
64timeout: Watchdog timeout in seconds. (1<=timeout<=((2^32)/SCLK), default=20)
65nowayout: Watchdog cannot be stopped once started
66 (default=kernel config parameter)
67-------------------------------------------------
68coh901327_wdt:
69margin: Watchdog margin in seconds (default 60s)
70-------------------------------------------------
71cpu5wdt:
72port: base address of watchdog card, default is 0x91
73verbose: be verbose, default is 0 (no)
74ticks: count down ticks, default is 10000
75-------------------------------------------------
76cpwd:
77wd0_timeout: Default watchdog0 timeout in 1/10secs
78wd1_timeout: Default watchdog1 timeout in 1/10secs
79wd2_timeout: Default watchdog2 timeout in 1/10secs
80-------------------------------------------------
81davinci_wdt:
82heartbeat: Watchdog heartbeat period in seconds from 1 to 600, default 60
83-------------------------------------------------
84ep93xx_wdt:
85nowayout: Watchdog cannot be stopped once started
86timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=TBD)
87-------------------------------------------------
88eurotechwdt:
89nowayout: Watchdog cannot be stopped once started
90 (default=kernel config parameter)
91io: Eurotech WDT io port (default=0x3f0)
92irq: Eurotech WDT irq (default=10)
93ev: Eurotech WDT event type (default is `int')
94-------------------------------------------------
95gef_wdt:
96nowayout: Watchdog cannot be stopped once started
97 (default=kernel config parameter)
98-------------------------------------------------
99geodewdt:
100timeout: Watchdog timeout in seconds. 1<= timeout <=131, default=60.
101nowayout: Watchdog cannot be stopped once started
102 (default=kernel config parameter)
103-------------------------------------------------
104i6300esb:
105heartbeat: Watchdog heartbeat in seconds. (1<heartbeat<2046, default=30)
106nowayout: Watchdog cannot be stopped once started
107 (default=kernel config parameter)
108-------------------------------------------------
109iTCO_wdt:
110heartbeat: Watchdog heartbeat in seconds.
111 (2<heartbeat<39 (TCO v1) or 613 (TCO v2), default=30)
112nowayout: Watchdog cannot be stopped once started
113 (default=kernel config parameter)
114-------------------------------------------------
115iTCO_vendor_support:
116vendorsupport: iTCO vendor specific support mode, default=0 (none),
117 1=SuperMicro Pent3, 2=SuperMicro Pent4+, 911=Broken SMI BIOS
118-------------------------------------------------
119ib700wdt:
120timeout: Watchdog timeout in seconds. 0<= timeout <=30, default=30.
121nowayout: Watchdog cannot be stopped once started
122 (default=kernel config parameter)
123-------------------------------------------------
124ibmasr:
125nowayout: Watchdog cannot be stopped once started
126 (default=kernel config parameter)
127-------------------------------------------------
128imx2_wdt:
129timeout: Watchdog timeout in seconds (default 60 s)
130nowayout: Watchdog cannot be stopped once started
131 (default=kernel config parameter)
132-------------------------------------------------
133indydog:
134nowayout: Watchdog cannot be stopped once started
135 (default=kernel config parameter)
136-------------------------------------------------
137iop_wdt:
138nowayout: Watchdog cannot be stopped once started
139 (default=kernel config parameter)
140-------------------------------------------------
141it8712f_wdt:
142margin: Watchdog margin in seconds (default 60)
143nowayout: Disable watchdog shutdown on close
144 (default=kernel config parameter)
145-------------------------------------------------
146it87_wdt:
147nogameport: Forbid the activation of game port, default=0
148exclusive: Watchdog exclusive device open, default=1
149timeout: Watchdog timeout in seconds, default=60
150testmode: Watchdog test mode (1 = no reboot), default=0
151nowayout: Watchdog cannot be stopped once started
152 (default=kernel config parameter)
153-------------------------------------------------
154ixp2000_wdt:
155heartbeat: Watchdog heartbeat in seconds (default 60s)
156nowayout: Watchdog cannot be stopped once started
157 (default=kernel config parameter)
158-------------------------------------------------
159ixp4xx_wdt:
160heartbeat: Watchdog heartbeat in seconds (default 60s)
161nowayout: Watchdog cannot be stopped once started
162 (default=kernel config parameter)
163-------------------------------------------------
164ks8695_wdt:
165wdt_time: Watchdog time in seconds. (default=5)
166nowayout: Watchdog cannot be stopped once started
167 (default=kernel config parameter)
168-------------------------------------------------
169machzwd:
170nowayout: Watchdog cannot be stopped once started
171 (default=kernel config parameter)
172action: after watchdog resets, generate:
173 0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI
174-------------------------------------------------
175max63xx_wdt:
176heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 60
177nowayout: Watchdog cannot be stopped once started
178 (default=kernel config parameter)
179nodelay: Force selection of a timeout setting without initial delay
180 (max6373/74 only, default=0)
181-------------------------------------------------
182mixcomwd:
183nowayout: Watchdog cannot be stopped once started
184 (default=kernel config parameter)
185-------------------------------------------------
186mpc8xxx_wdt:
187timeout: Watchdog timeout in ticks. (0<timeout<65536, default=65535)
188reset: Watchdog Interrupt/Reset Mode. 0 = interrupt, 1 = reset
189nowayout: Watchdog cannot be stopped once started
190 (default=kernel config parameter)
191-------------------------------------------------
192mpcore_wdt:
193mpcore_margin: MPcore timer margin in seconds.
194 (0 < mpcore_margin < 65536, default=60)
195nowayout: Watchdog cannot be stopped once started
196 (default=kernel config parameter)
197mpcore_noboot: MPcore watchdog action, set to 1 to ignore reboots,
198 0 to reboot (default=0
199-------------------------------------------------
200mv64x60_wdt:
201nowayout: Watchdog cannot be stopped once started
202 (default=kernel config parameter)
203-------------------------------------------------
204nuc900_wdt:
205heartbeat: Watchdog heartbeats in seconds.
206 (default = 15)
207nowayout: Watchdog cannot be stopped once started
208 (default=kernel config parameter)
209-------------------------------------------------
210omap_wdt:
211timer_margin: initial watchdog timeout (in seconds)
212-------------------------------------------------
213orion_wdt:
214heartbeat: Initial watchdog heartbeat in seconds
215nowayout: Watchdog cannot be stopped once started
216 (default=kernel config parameter)
217-------------------------------------------------
218pc87413_wdt:
219io: pc87413 WDT I/O port (default: io).
220timeout: Watchdog timeout in minutes (default=timeout).
221nowayout: Watchdog cannot be stopped once started
222 (default=kernel config parameter)
223-------------------------------------------------
224pika_wdt:
225heartbeat: Watchdog heartbeats in seconds. (default = 15)
226nowayout: Watchdog cannot be stopped once started
227 (default=kernel config parameter)
228-------------------------------------------------
229pnx4008_wdt:
230heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 19
231nowayout: Set to 1 to keep watchdog running after device release
232-------------------------------------------------
233pnx833x_wdt:
234timeout: Watchdog timeout in Mhz. (68Mhz clock), default=2040000000 (30 seconds)
235nowayout: Watchdog cannot be stopped once started
236 (default=kernel config parameter)
237start_enabled: Watchdog is started on module insertion (default=1)
238-------------------------------------------------
239rc32434_wdt:
240timeout: Watchdog timeout value, in seconds (default=20)
241nowayout: Watchdog cannot be stopped once started
242 (default=kernel config parameter)
243-------------------------------------------------
244riowd:
245riowd_timeout: Watchdog timeout in minutes (default=1)
246-------------------------------------------------
247s3c2410_wdt:
248tmr_margin: Watchdog tmr_margin in seconds. (default=15)
249tmr_atboot: Watchdog is started at boot time if set to 1, default=0
250nowayout: Watchdog cannot be stopped once started
251 (default=kernel config parameter)
252soft_noboot: Watchdog action, set to 1 to ignore reboots, 0 to reboot
253debug: Watchdog debug, set to >1 for debug, (default 0)
254-------------------------------------------------
255sa1100_wdt:
256margin: Watchdog margin in seconds (default 60s)
257-------------------------------------------------
258sb_wdog:
259timeout: Watchdog timeout in microseconds (max/default 8388607 or 8.3ish secs)
260-------------------------------------------------
261sbc60xxwdt:
262wdt_stop: SBC60xx WDT 'stop' io port (default 0x45)
263wdt_start: SBC60xx WDT 'start' io port (default 0x443)
264timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
265nowayout: Watchdog cannot be stopped once started
266 (default=kernel config parameter)
267-------------------------------------------------
268sbc7240_wdt:
269timeout: Watchdog timeout in seconds. (1<=timeout<=255, default=30)
270nowayout: Disable watchdog when closing device file
271-------------------------------------------------
272sbc8360:
273timeout: Index into timeout table (0-63) (default=27 (60s))
274nowayout: Watchdog cannot be stopped once started
275 (default=kernel config parameter)
276-------------------------------------------------
277sbc_epx_c3:
278nowayout: Watchdog cannot be stopped once started
279 (default=kernel config parameter)
280-------------------------------------------------
281sbc_fitpc2_wdt:
282margin: Watchdog margin in seconds (default 60s)
283nowayout: Watchdog cannot be stopped once started
284-------------------------------------------------
285sc1200wdt:
286isapnp: When set to 0 driver ISA PnP support will be disabled (default=1)
287io: io port
288timeout: range is 0-255 minutes, default is 1
289nowayout: Watchdog cannot be stopped once started
290 (default=kernel config parameter)
291-------------------------------------------------
292sc520_wdt:
293timeout: Watchdog timeout in seconds. (1 <= timeout <= 3600, default=30)
294nowayout: Watchdog cannot be stopped once started
295 (default=kernel config parameter)
296-------------------------------------------------
297sch311x_wdt:
298force_id: Override the detected device ID
299therm_trip: Should a ThermTrip trigger the reset generator
300timeout: Watchdog timeout in seconds. 1<= timeout <=15300, default=60
301nowayout: Watchdog cannot be stopped once started
302 (default=kernel config parameter)
303-------------------------------------------------
304scx200_wdt:
305margin: Watchdog margin in seconds
306nowayout: Disable watchdog shutdown on close
307-------------------------------------------------
308shwdt:
309clock_division_ratio: Clock division ratio. Valid ranges are from 0x5 (1.31ms)
310 to 0x7 (5.25ms). (default=7)
311heartbeat: Watchdog heartbeat in seconds. (1 <= heartbeat <= 3600, default=30
312nowayout: Watchdog cannot be stopped once started
313 (default=kernel config parameter)
314-------------------------------------------------
315smsc37b787_wdt:
316timeout: range is 1-255 units, default is 60
317nowayout: Watchdog cannot be stopped once started
318 (default=kernel config parameter)
319-------------------------------------------------
320softdog:
321soft_margin: Watchdog soft_margin in seconds.
322 (0 < soft_margin < 65536, default=60)
323nowayout: Watchdog cannot be stopped once started
324 (default=kernel config parameter)
325soft_noboot: Softdog action, set to 1 to ignore reboots, 0 to reboot
326 (default=0)
327-------------------------------------------------
328stmp3xxx_wdt:
329heartbeat: Watchdog heartbeat period in seconds from 1 to 4194304, default 19
330-------------------------------------------------
331ts72xx_wdt:
332timeout: Watchdog timeout in seconds. (1 <= timeout <= 8, default=8)
333nowayout: Disable watchdog shutdown on close
334-------------------------------------------------
335twl4030_wdt:
336nowayout: Watchdog cannot be stopped once started
337 (default=kernel config parameter)
338-------------------------------------------------
339txx9wdt:
340timeout: Watchdog timeout in seconds. (0<timeout<N, default=60)
341nowayout: Watchdog cannot be stopped once started
342 (default=kernel config parameter)
343-------------------------------------------------
344w83627hf_wdt:
345wdt_io: w83627hf/thf WDT io port (default 0x2E)
346timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
347nowayout: Watchdog cannot be stopped once started
348 (default=kernel config parameter)
349-------------------------------------------------
350w83697hf_wdt:
351wdt_io: w83697hf/hg WDT io port (default 0x2e, 0 = autodetect)
352timeout: Watchdog timeout in seconds. 1<= timeout <=255 (default=60)
353nowayout: Watchdog cannot be stopped once started
354 (default=kernel config parameter)
355early_disable: Watchdog gets disabled at boot time (default=1)
356-------------------------------------------------
357w83697ug_wdt:
358wdt_io: w83697ug/uf WDT io port (default 0x2e)
359timeout: Watchdog timeout in seconds. 1<= timeout <=255 (default=60)
360nowayout: Watchdog cannot be stopped once started
361 (default=kernel config parameter)
362-------------------------------------------------
363w83877f_wdt:
364timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
365nowayout: Watchdog cannot be stopped once started
366 (default=kernel config parameter)
367-------------------------------------------------
368w83977f_wdt:
369timeout: Watchdog timeout in seconds (15..7635), default=45)
370testmode: Watchdog testmode (1 = no reboot), default=0
371nowayout: Watchdog cannot be stopped once started
372 (default=kernel config parameter)
373-------------------------------------------------
374wafer5823wdt:
375timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
376nowayout: Watchdog cannot be stopped once started
377 (default=kernel config parameter)
378-------------------------------------------------
379wdt285:
380soft_margin: Watchdog timeout in seconds (default=60)
381-------------------------------------------------
382wdt977:
383timeout: Watchdog timeout in seconds (60..15300, default=60)
384testmode: Watchdog testmode (1 = no reboot), default=0
385nowayout: Watchdog cannot be stopped once started
386 (default=kernel config parameter)
387-------------------------------------------------
388wm831x_wdt:
389nowayout: Watchdog cannot be stopped once started
390 (default=kernel config parameter)
391-------------------------------------------------
392wm8350_wdt:
393nowayout: Watchdog cannot be stopped once started
394 (default=kernel config parameter)
395-------------------------------------------------