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Documentation / watchdog / watchdog-parameters.txt




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Based on kernel version 3.16. Page generated on 2014-08-06 21:41 EST.

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.
5	
6	
7	See Documentation/kernel-parameters.txt for information on
8	providing kernel parameters for builtin drivers versus loadable
9	modules.
10	
11	
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	at32ap700x_wdt:
44	timeout: Timeout value. Limited to be 1 or 2 seconds. (default=2)
45	nowayout: Watchdog cannot be stopped once started
46		(default=kernel config parameter)
47	-------------------------------------------------
48	at91rm9200_wdt:
49	wdt_time: Watchdog time in seconds. (default=5)
50	nowayout: Watchdog cannot be stopped once started
51		(default=kernel config parameter)
52	-------------------------------------------------
53	at91sam9_wdt:
54	heartbeat: Watchdog heartbeats in seconds. (default = 15)
55	nowayout: Watchdog cannot be stopped once started
56		(default=kernel config parameter)
57	-------------------------------------------------
58	bcm47xx_wdt:
59	wdt_time: Watchdog time in seconds. (default=30)
60	nowayout: Watchdog cannot be stopped once started
61		(default=kernel config parameter)
62	-------------------------------------------------
63	bfin_wdt:
64	timeout: Watchdog timeout in seconds. (1<=timeout<=((2^32)/SCLK), default=20)
65	nowayout: Watchdog cannot be stopped once started
66		(default=kernel config parameter)
67	-------------------------------------------------
68	coh901327_wdt:
69	margin: Watchdog margin in seconds (default 60s)
70	-------------------------------------------------
71	cpu5wdt:
72	port: base address of watchdog card, default is 0x91
73	verbose: be verbose, default is 0 (no)
74	ticks: count down ticks, default is 10000
75	-------------------------------------------------
76	cpwd:
77	wd0_timeout: Default watchdog0 timeout in 1/10secs
78	wd1_timeout: Default watchdog1 timeout in 1/10secs
79	wd2_timeout: Default watchdog2 timeout in 1/10secs
80	-------------------------------------------------
81	da9052wdt:
82	timeout: Watchdog timeout in seconds. 2<= timeout <=131, default=2.048s
83	nowayout: Watchdog cannot be stopped once started
84		(default=kernel config parameter)
85	-------------------------------------------------
86	davinci_wdt:
87	heartbeat: Watchdog heartbeat period in seconds from 1 to 600, default 60
88	-------------------------------------------------
89	ep93xx_wdt:
90	nowayout: Watchdog cannot be stopped once started
91	timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=TBD)
92	-------------------------------------------------
93	eurotechwdt:
94	nowayout: Watchdog cannot be stopped once started
95		(default=kernel config parameter)
96	io: Eurotech WDT io port (default=0x3f0)
97	irq: Eurotech WDT irq (default=10)
98	ev: Eurotech WDT event type (default is `int')
99	-------------------------------------------------
100	gef_wdt:
101	nowayout: Watchdog cannot be stopped once started
102		(default=kernel config parameter)
103	-------------------------------------------------
104	geodewdt:
105	timeout: Watchdog timeout in seconds. 1<= timeout <=131, default=60.
106	nowayout: Watchdog cannot be stopped once started
107		(default=kernel config parameter)
108	-------------------------------------------------
109	i6300esb:
110	heartbeat: Watchdog heartbeat in seconds. (1<heartbeat<2046, default=30)
111	nowayout: Watchdog cannot be stopped once started
112		(default=kernel config parameter)
113	-------------------------------------------------
114	iTCO_wdt:
115	heartbeat: Watchdog heartbeat in seconds.
116		(2<heartbeat<39 (TCO v1) or 613 (TCO v2), default=30)
117	nowayout: Watchdog cannot be stopped once started
118		(default=kernel config parameter)
119	-------------------------------------------------
120	iTCO_vendor_support:
121	vendorsupport: iTCO vendor specific support mode, default=0 (none),
122		1=SuperMicro Pent3, 2=SuperMicro Pent4+, 911=Broken SMI BIOS
123	-------------------------------------------------
124	ib700wdt:
125	timeout: Watchdog timeout in seconds. 0<= timeout <=30, default=30.
126	nowayout: Watchdog cannot be stopped once started
127		(default=kernel config parameter)
128	-------------------------------------------------
129	ibmasr:
130	nowayout: Watchdog cannot be stopped once started
131		(default=kernel config parameter)
132	-------------------------------------------------
133	imx2_wdt:
134	timeout: Watchdog timeout in seconds (default 60 s)
135	nowayout: Watchdog cannot be stopped once started
136		(default=kernel config parameter)
137	-------------------------------------------------
138	indydog:
139	nowayout: Watchdog cannot be stopped once started
140		(default=kernel config parameter)
141	-------------------------------------------------
142	iop_wdt:
143	nowayout: Watchdog cannot be stopped once started
144		(default=kernel config parameter)
145	-------------------------------------------------
146	it8712f_wdt:
147	margin: Watchdog margin in seconds (default 60)
148	nowayout: Disable watchdog shutdown on close
149		(default=kernel config parameter)
150	-------------------------------------------------
151	it87_wdt:
152	nogameport: Forbid the activation of game port, default=0
153	nocir: Forbid the use of CIR (workaround for some buggy setups); set to 1 if
154	system resets despite watchdog daemon running, default=0
155	exclusive: Watchdog exclusive device open, default=1
156	timeout: Watchdog timeout in seconds, default=60
157	testmode: Watchdog test mode (1 = no reboot), default=0
158	nowayout: Watchdog cannot be stopped once started
159		(default=kernel config parameter)
160	-------------------------------------------------
161	ixp2000_wdt:
162	heartbeat: Watchdog heartbeat in seconds (default 60s)
163	nowayout: Watchdog cannot be stopped once started
164		(default=kernel config parameter)
165	-------------------------------------------------
166	ixp4xx_wdt:
167	heartbeat: Watchdog heartbeat in seconds (default 60s)
168	nowayout: Watchdog cannot be stopped once started
169		(default=kernel config parameter)
170	-------------------------------------------------
171	ks8695_wdt:
172	wdt_time: Watchdog time in seconds. (default=5)
173	nowayout: Watchdog cannot be stopped once started
174		(default=kernel config parameter)
175	-------------------------------------------------
176	machzwd:
177	nowayout: Watchdog cannot be stopped once started
178		(default=kernel config parameter)
179	action: after watchdog resets, generate:
180		0 = RESET(*)  1 = SMI  2 = NMI  3 = SCI
181	-------------------------------------------------
182	max63xx_wdt:
183	heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 60
184	nowayout: Watchdog cannot be stopped once started
185		(default=kernel config parameter)
186	nodelay: Force selection of a timeout setting without initial delay
187		(max6373/74 only, default=0)
188	-------------------------------------------------
189	mixcomwd:
190	nowayout: Watchdog cannot be stopped once started
191		(default=kernel config parameter)
192	-------------------------------------------------
193	mpc8xxx_wdt:
194	timeout: Watchdog timeout in ticks. (0<timeout<65536, default=65535)
195	reset: Watchdog Interrupt/Reset Mode. 0 = interrupt, 1 = reset
196	nowayout: Watchdog cannot be stopped once started
197		(default=kernel config parameter)
198	-------------------------------------------------
199	mv64x60_wdt:
200	nowayout: Watchdog cannot be stopped once started
201		(default=kernel config parameter)
202	-------------------------------------------------
203	nuc900_wdt:
204	heartbeat: Watchdog heartbeats in seconds.
205		(default = 15)
206	nowayout: Watchdog cannot be stopped once started
207		(default=kernel config parameter)
208	-------------------------------------------------
209	omap_wdt:
210	timer_margin: initial watchdog timeout (in seconds)
211	-------------------------------------------------
212	orion_wdt:
213	heartbeat: Initial watchdog heartbeat in seconds
214	nowayout: Watchdog cannot be stopped once started
215		(default=kernel config parameter)
216	-------------------------------------------------
217	pc87413_wdt:
218	io: pc87413 WDT I/O port (default: io).
219	timeout: Watchdog timeout in minutes (default=timeout).
220	nowayout: Watchdog cannot be stopped once started
221		(default=kernel config parameter)
222	-------------------------------------------------
223	pika_wdt:
224	heartbeat: Watchdog heartbeats in seconds. (default = 15)
225	nowayout: Watchdog cannot be stopped once started
226		(default=kernel config parameter)
227	-------------------------------------------------
228	pnx4008_wdt:
229	heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 19
230	nowayout: Set to 1 to keep watchdog running after device release
231	-------------------------------------------------
232	pnx833x_wdt:
233	timeout: Watchdog timeout in Mhz. (68Mhz clock), default=2040000000 (30 seconds)
234	nowayout: Watchdog cannot be stopped once started
235		(default=kernel config parameter)
236	start_enabled: Watchdog is started on module insertion (default=1)
237	-------------------------------------------------
238	rc32434_wdt:
239	timeout: Watchdog timeout value, in seconds (default=20)
240	nowayout: Watchdog cannot be stopped once started
241		(default=kernel config parameter)
242	-------------------------------------------------
243	riowd:
244	riowd_timeout: Watchdog timeout in minutes (default=1)
245	-------------------------------------------------
246	s3c2410_wdt:
247	tmr_margin: Watchdog tmr_margin in seconds. (default=15)
248	tmr_atboot: Watchdog is started at boot time if set to 1, default=0
249	nowayout: Watchdog cannot be stopped once started
250		(default=kernel config parameter)
251	soft_noboot: Watchdog action, set to 1 to ignore reboots, 0 to reboot
252	debug: Watchdog debug, set to >1 for debug, (default 0)
253	-------------------------------------------------
254	sa1100_wdt:
255	margin: Watchdog margin in seconds (default 60s)
256	-------------------------------------------------
257	sb_wdog:
258	timeout: Watchdog timeout in microseconds (max/default 8388607 or 8.3ish secs)
259	-------------------------------------------------
260	sbc60xxwdt:
261	wdt_stop: SBC60xx WDT 'stop' io port (default 0x45)
262	wdt_start: SBC60xx WDT 'start' io port (default 0x443)
263	timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
264	nowayout: Watchdog cannot be stopped once started
265		(default=kernel config parameter)
266	-------------------------------------------------
267	sbc7240_wdt:
268	timeout: Watchdog timeout in seconds. (1<=timeout<=255, default=30)
269	nowayout: Disable watchdog when closing device file
270	-------------------------------------------------
271	sbc8360:
272	timeout: Index into timeout table (0-63) (default=27 (60s))
273	nowayout: Watchdog cannot be stopped once started
274		(default=kernel config parameter)
275	-------------------------------------------------
276	sbc_epx_c3:
277	nowayout: Watchdog cannot be stopped once started
278		(default=kernel config parameter)
279	-------------------------------------------------
280	sbc_fitpc2_wdt:
281	margin: Watchdog margin in seconds (default 60s)
282	nowayout: Watchdog cannot be stopped once started
283	-------------------------------------------------
284	sc1200wdt:
285	isapnp: When set to 0 driver ISA PnP support will be disabled (default=1)
286	io: io port
287	timeout: range is 0-255 minutes, default is 1
288	nowayout: Watchdog cannot be stopped once started
289		(default=kernel config parameter)
290	-------------------------------------------------
291	sc520_wdt:
292	timeout: Watchdog timeout in seconds. (1 <= timeout <= 3600, default=30)
293	nowayout: Watchdog cannot be stopped once started
294		(default=kernel config parameter)
295	-------------------------------------------------
296	sch311x_wdt:
297	force_id: Override the detected device ID
298	therm_trip: Should a ThermTrip trigger the reset generator
299	timeout: Watchdog timeout in seconds. 1<= timeout <=15300, default=60
300	nowayout: Watchdog cannot be stopped once started
301		(default=kernel config parameter)
302	-------------------------------------------------
303	scx200_wdt:
304	margin: Watchdog margin in seconds
305	nowayout: Disable watchdog shutdown on close
306	-------------------------------------------------
307	shwdt:
308	clock_division_ratio: Clock division ratio. Valid ranges are from 0x5 (1.31ms)
309		to 0x7 (5.25ms). (default=7)
310	heartbeat: Watchdog heartbeat in seconds. (1 <= heartbeat <= 3600, default=30
311	nowayout: Watchdog cannot be stopped once started
312		(default=kernel config parameter)
313	-------------------------------------------------
314	smsc37b787_wdt:
315	timeout: range is 1-255 units, default is 60
316	nowayout: Watchdog cannot be stopped once started
317		(default=kernel config parameter)
318	-------------------------------------------------
319	softdog:
320	soft_margin: Watchdog soft_margin in seconds.
321		(0 < soft_margin < 65536, default=60)
322	nowayout: Watchdog cannot be stopped once started
323		(default=kernel config parameter)
324	soft_noboot: Softdog action, set to 1 to ignore reboots, 0 to reboot
325		(default=0)
326	-------------------------------------------------
327	stmp3xxx_wdt:
328	heartbeat: Watchdog heartbeat period in seconds from 1 to 4194304, default 19
329	-------------------------------------------------
330	tegra_wdt:
331	heartbeat: Watchdog heartbeats in seconds. (default = 120)
332	nowayout: Watchdog cannot be stopped once started
333		(default=kernel config parameter)
334	-------------------------------------------------
335	ts72xx_wdt:
336	timeout: Watchdog timeout in seconds. (1 <= timeout <= 8, default=8)
337	nowayout: Disable watchdog shutdown on close
338	-------------------------------------------------
339	twl4030_wdt:
340	nowayout: Watchdog cannot be stopped once started
341		(default=kernel config parameter)
342	-------------------------------------------------
343	txx9wdt:
344	timeout: Watchdog timeout in seconds. (0<timeout<N, default=60)
345	nowayout: Watchdog cannot be stopped once started
346		(default=kernel config parameter)
347	-------------------------------------------------
348	w83627hf_wdt:
349	wdt_io: w83627hf/thf WDT io port (default 0x2E)
350	timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
351	nowayout: Watchdog cannot be stopped once started
352		(default=kernel config parameter)
353	-------------------------------------------------
354	w83697hf_wdt:
355	wdt_io: w83697hf/hg WDT io port (default 0x2e, 0 = autodetect)
356	timeout: Watchdog timeout in seconds. 1<= timeout <=255 (default=60)
357	nowayout: Watchdog cannot be stopped once started
358		(default=kernel config parameter)
359	early_disable: Watchdog gets disabled at boot time (default=1)
360	-------------------------------------------------
361	w83697ug_wdt:
362	wdt_io: w83697ug/uf WDT io port (default 0x2e)
363	timeout: Watchdog timeout in seconds. 1<= timeout <=255 (default=60)
364	nowayout: Watchdog cannot be stopped once started
365		(default=kernel config parameter)
366	-------------------------------------------------
367	w83877f_wdt:
368	timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
369	nowayout: Watchdog cannot be stopped once started
370		(default=kernel config parameter)
371	-------------------------------------------------
372	w83977f_wdt:
373	timeout: Watchdog timeout in seconds (15..7635), default=45)
374	testmode: Watchdog testmode (1 = no reboot), default=0
375	nowayout: Watchdog cannot be stopped once started
376		(default=kernel config parameter)
377	-------------------------------------------------
378	wafer5823wdt:
379	timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
380	nowayout: Watchdog cannot be stopped once started
381		(default=kernel config parameter)
382	-------------------------------------------------
383	wdt285:
384	soft_margin: Watchdog timeout in seconds (default=60)
385	-------------------------------------------------
386	wdt977:
387	timeout: Watchdog timeout in seconds (60..15300, default=60)
388	testmode: Watchdog testmode (1 = no reboot), default=0
389	nowayout: Watchdog cannot be stopped once started
390		(default=kernel config parameter)
391	-------------------------------------------------
392	wm831x_wdt:
393	nowayout: Watchdog cannot be stopped once started
394		(default=kernel config parameter)
395	-------------------------------------------------
396	wm8350_wdt:
397	nowayout: Watchdog cannot be stopped once started
398		(default=kernel config parameter)
399	-------------------------------------------------
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