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Randy Dunlap4724ba52010-05-03 11:42:52 -07001This 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-------------------------------------------------
Ashish Jangam664a0d72012-05-24 18:31:14 +053081da9052wdt:
82timeout: Watchdog timeout in seconds. 2<= timeout <=131, default=2.048s
83nowayout: Watchdog cannot be stopped once started
84 (default=kernel config parameter)
85-------------------------------------------------
Randy Dunlap4724ba52010-05-03 11:42:52 -070086davinci_wdt:
87heartbeat: Watchdog heartbeat period in seconds from 1 to 600, default 60
88-------------------------------------------------
89ep93xx_wdt:
90nowayout: Watchdog cannot be stopped once started
91timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=TBD)
92-------------------------------------------------
93eurotechwdt:
94nowayout: Watchdog cannot be stopped once started
95 (default=kernel config parameter)
96io: Eurotech WDT io port (default=0x3f0)
97irq: Eurotech WDT irq (default=10)
98ev: Eurotech WDT event type (default is `int')
99-------------------------------------------------
100gef_wdt:
101nowayout: Watchdog cannot be stopped once started
102 (default=kernel config parameter)
103-------------------------------------------------
104geodewdt:
105timeout: Watchdog timeout in seconds. 1<= timeout <=131, default=60.
106nowayout: Watchdog cannot be stopped once started
107 (default=kernel config parameter)
108-------------------------------------------------
109i6300esb:
110heartbeat: Watchdog heartbeat in seconds. (1<heartbeat<2046, default=30)
111nowayout: Watchdog cannot be stopped once started
112 (default=kernel config parameter)
113-------------------------------------------------
114iTCO_wdt:
115heartbeat: Watchdog heartbeat in seconds.
116 (2<heartbeat<39 (TCO v1) or 613 (TCO v2), default=30)
117nowayout: Watchdog cannot be stopped once started
118 (default=kernel config parameter)
119-------------------------------------------------
120iTCO_vendor_support:
121vendorsupport: iTCO vendor specific support mode, default=0 (none),
122 1=SuperMicro Pent3, 2=SuperMicro Pent4+, 911=Broken SMI BIOS
123-------------------------------------------------
124ib700wdt:
125timeout: Watchdog timeout in seconds. 0<= timeout <=30, default=30.
126nowayout: Watchdog cannot be stopped once started
127 (default=kernel config parameter)
128-------------------------------------------------
129ibmasr:
130nowayout: Watchdog cannot be stopped once started
131 (default=kernel config parameter)
132-------------------------------------------------
Fabio Estevam476099a2010-06-24 09:43:25 -0700133imx2_wdt:
134timeout: Watchdog timeout in seconds (default 60 s)
135nowayout: Watchdog cannot be stopped once started
136 (default=kernel config parameter)
137-------------------------------------------------
Randy Dunlap4724ba52010-05-03 11:42:52 -0700138indydog:
139nowayout: Watchdog cannot be stopped once started
140 (default=kernel config parameter)
141-------------------------------------------------
142iop_wdt:
143nowayout: Watchdog cannot be stopped once started
144 (default=kernel config parameter)
145-------------------------------------------------
146it8712f_wdt:
147margin: Watchdog margin in seconds (default 60)
148nowayout: Disable watchdog shutdown on close
149 (default=kernel config parameter)
150-------------------------------------------------
151it87_wdt:
152nogameport: Forbid the activation of game port, default=0
153exclusive: Watchdog exclusive device open, default=1
154timeout: Watchdog timeout in seconds, default=60
155testmode: Watchdog test mode (1 = no reboot), default=0
156nowayout: Watchdog cannot be stopped once started
157 (default=kernel config parameter)
158-------------------------------------------------
159ixp2000_wdt:
160heartbeat: Watchdog heartbeat in seconds (default 60s)
161nowayout: Watchdog cannot be stopped once started
162 (default=kernel config parameter)
163-------------------------------------------------
164ixp4xx_wdt:
165heartbeat: Watchdog heartbeat in seconds (default 60s)
166nowayout: Watchdog cannot be stopped once started
167 (default=kernel config parameter)
168-------------------------------------------------
169ks8695_wdt:
170wdt_time: Watchdog time in seconds. (default=5)
171nowayout: Watchdog cannot be stopped once started
172 (default=kernel config parameter)
173-------------------------------------------------
174machzwd:
175nowayout: Watchdog cannot be stopped once started
176 (default=kernel config parameter)
177action: after watchdog resets, generate:
178 0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI
179-------------------------------------------------
180max63xx_wdt:
181heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 60
182nowayout: Watchdog cannot be stopped once started
183 (default=kernel config parameter)
184nodelay: Force selection of a timeout setting without initial delay
185 (max6373/74 only, default=0)
186-------------------------------------------------
187mixcomwd:
188nowayout: Watchdog cannot be stopped once started
189 (default=kernel config parameter)
190-------------------------------------------------
191mpc8xxx_wdt:
192timeout: Watchdog timeout in ticks. (0<timeout<65536, default=65535)
193reset: Watchdog Interrupt/Reset Mode. 0 = interrupt, 1 = reset
194nowayout: Watchdog cannot be stopped once started
195 (default=kernel config parameter)
196-------------------------------------------------
197mpcore_wdt:
198mpcore_margin: MPcore timer margin in seconds.
199 (0 < mpcore_margin < 65536, default=60)
200nowayout: Watchdog cannot be stopped once started
201 (default=kernel config parameter)
202mpcore_noboot: MPcore watchdog action, set to 1 to ignore reboots,
203 0 to reboot (default=0
204-------------------------------------------------
205mv64x60_wdt:
206nowayout: Watchdog cannot be stopped once started
207 (default=kernel config parameter)
208-------------------------------------------------
209nuc900_wdt:
210heartbeat: Watchdog heartbeats in seconds.
211 (default = 15)
212nowayout: Watchdog cannot be stopped once started
213 (default=kernel config parameter)
214-------------------------------------------------
215omap_wdt:
216timer_margin: initial watchdog timeout (in seconds)
217-------------------------------------------------
218orion_wdt:
219heartbeat: Initial watchdog heartbeat in seconds
220nowayout: Watchdog cannot be stopped once started
221 (default=kernel config parameter)
222-------------------------------------------------
223pc87413_wdt:
224io: pc87413 WDT I/O port (default: io).
225timeout: Watchdog timeout in minutes (default=timeout).
226nowayout: Watchdog cannot be stopped once started
227 (default=kernel config parameter)
228-------------------------------------------------
229pika_wdt:
230heartbeat: Watchdog heartbeats in seconds. (default = 15)
231nowayout: Watchdog cannot be stopped once started
232 (default=kernel config parameter)
233-------------------------------------------------
234pnx4008_wdt:
235heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 19
236nowayout: Set to 1 to keep watchdog running after device release
237-------------------------------------------------
238pnx833x_wdt:
239timeout: Watchdog timeout in Mhz. (68Mhz clock), default=2040000000 (30 seconds)
240nowayout: Watchdog cannot be stopped once started
241 (default=kernel config parameter)
242start_enabled: Watchdog is started on module insertion (default=1)
243-------------------------------------------------
244rc32434_wdt:
245timeout: Watchdog timeout value, in seconds (default=20)
246nowayout: Watchdog cannot be stopped once started
247 (default=kernel config parameter)
248-------------------------------------------------
249riowd:
250riowd_timeout: Watchdog timeout in minutes (default=1)
251-------------------------------------------------
252s3c2410_wdt:
253tmr_margin: Watchdog tmr_margin in seconds. (default=15)
254tmr_atboot: Watchdog is started at boot time if set to 1, default=0
255nowayout: Watchdog cannot be stopped once started
256 (default=kernel config parameter)
257soft_noboot: Watchdog action, set to 1 to ignore reboots, 0 to reboot
258debug: Watchdog debug, set to >1 for debug, (default 0)
259-------------------------------------------------
260sa1100_wdt:
261margin: Watchdog margin in seconds (default 60s)
262-------------------------------------------------
263sb_wdog:
264timeout: Watchdog timeout in microseconds (max/default 8388607 or 8.3ish secs)
265-------------------------------------------------
266sbc60xxwdt:
267wdt_stop: SBC60xx WDT 'stop' io port (default 0x45)
268wdt_start: SBC60xx WDT 'start' io port (default 0x443)
269timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
270nowayout: Watchdog cannot be stopped once started
271 (default=kernel config parameter)
272-------------------------------------------------
273sbc7240_wdt:
274timeout: Watchdog timeout in seconds. (1<=timeout<=255, default=30)
275nowayout: Disable watchdog when closing device file
276-------------------------------------------------
277sbc8360:
278timeout: Index into timeout table (0-63) (default=27 (60s))
279nowayout: Watchdog cannot be stopped once started
280 (default=kernel config parameter)
281-------------------------------------------------
282sbc_epx_c3:
283nowayout: Watchdog cannot be stopped once started
284 (default=kernel config parameter)
285-------------------------------------------------
286sbc_fitpc2_wdt:
287margin: Watchdog margin in seconds (default 60s)
288nowayout: Watchdog cannot be stopped once started
289-------------------------------------------------
290sc1200wdt:
291isapnp: When set to 0 driver ISA PnP support will be disabled (default=1)
292io: io port
293timeout: range is 0-255 minutes, default is 1
294nowayout: Watchdog cannot be stopped once started
295 (default=kernel config parameter)
296-------------------------------------------------
297sc520_wdt:
298timeout: Watchdog timeout in seconds. (1 <= timeout <= 3600, default=30)
299nowayout: Watchdog cannot be stopped once started
300 (default=kernel config parameter)
301-------------------------------------------------
302sch311x_wdt:
303force_id: Override the detected device ID
304therm_trip: Should a ThermTrip trigger the reset generator
305timeout: Watchdog timeout in seconds. 1<= timeout <=15300, default=60
306nowayout: Watchdog cannot be stopped once started
307 (default=kernel config parameter)
308-------------------------------------------------
309scx200_wdt:
310margin: Watchdog margin in seconds
311nowayout: Disable watchdog shutdown on close
312-------------------------------------------------
313shwdt:
314clock_division_ratio: Clock division ratio. Valid ranges are from 0x5 (1.31ms)
315 to 0x7 (5.25ms). (default=7)
316heartbeat: Watchdog heartbeat in seconds. (1 <= heartbeat <= 3600, default=30
317nowayout: Watchdog cannot be stopped once started
318 (default=kernel config parameter)
319-------------------------------------------------
320smsc37b787_wdt:
321timeout: range is 1-255 units, default is 60
322nowayout: Watchdog cannot be stopped once started
323 (default=kernel config parameter)
324-------------------------------------------------
325softdog:
326soft_margin: Watchdog soft_margin in seconds.
327 (0 < soft_margin < 65536, default=60)
328nowayout: Watchdog cannot be stopped once started
329 (default=kernel config parameter)
330soft_noboot: Softdog action, set to 1 to ignore reboots, 0 to reboot
331 (default=0)
332-------------------------------------------------
333stmp3xxx_wdt:
334heartbeat: Watchdog heartbeat period in seconds from 1 to 4194304, default 19
335-------------------------------------------------
336ts72xx_wdt:
337timeout: Watchdog timeout in seconds. (1 <= timeout <= 8, default=8)
338nowayout: Disable watchdog shutdown on close
339-------------------------------------------------
340twl4030_wdt:
341nowayout: Watchdog cannot be stopped once started
342 (default=kernel config parameter)
343-------------------------------------------------
344txx9wdt:
345timeout: Watchdog timeout in seconds. (0<timeout<N, default=60)
346nowayout: Watchdog cannot be stopped once started
347 (default=kernel config parameter)
348-------------------------------------------------
349w83627hf_wdt:
350wdt_io: w83627hf/thf WDT io port (default 0x2E)
351timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
352nowayout: Watchdog cannot be stopped once started
353 (default=kernel config parameter)
354-------------------------------------------------
355w83697hf_wdt:
356wdt_io: w83697hf/hg WDT io port (default 0x2e, 0 = autodetect)
357timeout: Watchdog timeout in seconds. 1<= timeout <=255 (default=60)
358nowayout: Watchdog cannot be stopped once started
359 (default=kernel config parameter)
360early_disable: Watchdog gets disabled at boot time (default=1)
361-------------------------------------------------
362w83697ug_wdt:
363wdt_io: w83697ug/uf WDT io port (default 0x2e)
364timeout: Watchdog timeout in seconds. 1<= timeout <=255 (default=60)
365nowayout: Watchdog cannot be stopped once started
366 (default=kernel config parameter)
367-------------------------------------------------
368w83877f_wdt:
369timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
370nowayout: Watchdog cannot be stopped once started
371 (default=kernel config parameter)
372-------------------------------------------------
373w83977f_wdt:
374timeout: Watchdog timeout in seconds (15..7635), default=45)
375testmode: Watchdog testmode (1 = no reboot), default=0
376nowayout: Watchdog cannot be stopped once started
377 (default=kernel config parameter)
378-------------------------------------------------
379wafer5823wdt:
380timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
381nowayout: Watchdog cannot be stopped once started
382 (default=kernel config parameter)
383-------------------------------------------------
384wdt285:
385soft_margin: Watchdog timeout in seconds (default=60)
386-------------------------------------------------
387wdt977:
388timeout: Watchdog timeout in seconds (60..15300, default=60)
389testmode: Watchdog testmode (1 = no reboot), default=0
390nowayout: Watchdog cannot be stopped once started
391 (default=kernel config parameter)
392-------------------------------------------------
393wm831x_wdt:
394nowayout: Watchdog cannot be stopped once started
395 (default=kernel config parameter)
396-------------------------------------------------
397wm8350_wdt:
398nowayout: Watchdog cannot be stopped once started
399 (default=kernel config parameter)
400-------------------------------------------------