tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
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-------------------------------------------------
81da9052wdt:
82timeout: Watchdog timeout in seconds. 2<= timeout <=131, default=2.048s
83nowayout: Watchdog cannot be stopped once started
84 (default=kernel config parameter)
85-------------------------------------------------
86davinci_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-------------------------------------------------
133imx2_wdt:
134timeout: Watchdog timeout in seconds (default 60 s)
135nowayout: Watchdog cannot be stopped once started
136 (default=kernel config parameter)
137-------------------------------------------------
138indydog:
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-------------------------------------------------