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Documentation / watchdog / watchdog-parameters.txt




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Based on kernel version 3.13. Page generated on 2014-01-20 22:05 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	exclusive: Watchdog exclusive device open, default=1
154	timeout: Watchdog timeout in seconds, default=60
155	testmode: Watchdog test mode (1 = no reboot), default=0
156	nowayout: Watchdog cannot be stopped once started
157		(default=kernel config parameter)
158	-------------------------------------------------
159	ixp2000_wdt:
160	heartbeat: Watchdog heartbeat in seconds (default 60s)
161	nowayout: Watchdog cannot be stopped once started
162		(default=kernel config parameter)
163	-------------------------------------------------
164	ixp4xx_wdt:
165	heartbeat: Watchdog heartbeat in seconds (default 60s)
166	nowayout: Watchdog cannot be stopped once started
167		(default=kernel config parameter)
168	-------------------------------------------------
169	ks8695_wdt:
170	wdt_time: Watchdog time in seconds. (default=5)
171	nowayout: Watchdog cannot be stopped once started
172		(default=kernel config parameter)
173	-------------------------------------------------
174	machzwd:
175	nowayout: Watchdog cannot be stopped once started
176		(default=kernel config parameter)
177	action: after watchdog resets, generate:
178		0 = RESET(*)  1 = SMI  2 = NMI  3 = SCI
179	-------------------------------------------------
180	max63xx_wdt:
181	heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 60
182	nowayout: Watchdog cannot be stopped once started
183		(default=kernel config parameter)
184	nodelay: Force selection of a timeout setting without initial delay
185		(max6373/74 only, default=0)
186	-------------------------------------------------
187	mixcomwd:
188	nowayout: Watchdog cannot be stopped once started
189		(default=kernel config parameter)
190	-------------------------------------------------
191	mpc8xxx_wdt:
192	timeout: Watchdog timeout in ticks. (0<timeout<65536, default=65535)
193	reset: Watchdog Interrupt/Reset Mode. 0 = interrupt, 1 = reset
194	nowayout: Watchdog cannot be stopped once started
195		(default=kernel config parameter)
196	-------------------------------------------------
197	mv64x60_wdt:
198	nowayout: Watchdog cannot be stopped once started
199		(default=kernel config parameter)
200	-------------------------------------------------
201	nuc900_wdt:
202	heartbeat: Watchdog heartbeats in seconds.
203		(default = 15)
204	nowayout: Watchdog cannot be stopped once started
205		(default=kernel config parameter)
206	-------------------------------------------------
207	omap_wdt:
208	timer_margin: initial watchdog timeout (in seconds)
209	-------------------------------------------------
210	orion_wdt:
211	heartbeat: Initial watchdog heartbeat in seconds
212	nowayout: Watchdog cannot be stopped once started
213		(default=kernel config parameter)
214	-------------------------------------------------
215	pc87413_wdt:
216	io: pc87413 WDT I/O port (default: io).
217	timeout: Watchdog timeout in minutes (default=timeout).
218	nowayout: Watchdog cannot be stopped once started
219		(default=kernel config parameter)
220	-------------------------------------------------
221	pika_wdt:
222	heartbeat: Watchdog heartbeats in seconds. (default = 15)
223	nowayout: Watchdog cannot be stopped once started
224		(default=kernel config parameter)
225	-------------------------------------------------
226	pnx4008_wdt:
227	heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 19
228	nowayout: Set to 1 to keep watchdog running after device release
229	-------------------------------------------------
230	pnx833x_wdt:
231	timeout: Watchdog timeout in Mhz. (68Mhz clock), default=2040000000 (30 seconds)
232	nowayout: Watchdog cannot be stopped once started
233		(default=kernel config parameter)
234	start_enabled: Watchdog is started on module insertion (default=1)
235	-------------------------------------------------
236	rc32434_wdt:
237	timeout: Watchdog timeout value, in seconds (default=20)
238	nowayout: Watchdog cannot be stopped once started
239		(default=kernel config parameter)
240	-------------------------------------------------
241	riowd:
242	riowd_timeout: Watchdog timeout in minutes (default=1)
243	-------------------------------------------------
244	s3c2410_wdt:
245	tmr_margin: Watchdog tmr_margin in seconds. (default=15)
246	tmr_atboot: Watchdog is started at boot time if set to 1, default=0
247	nowayout: Watchdog cannot be stopped once started
248		(default=kernel config parameter)
249	soft_noboot: Watchdog action, set to 1 to ignore reboots, 0 to reboot
250	debug: Watchdog debug, set to >1 for debug, (default 0)
251	-------------------------------------------------
252	sa1100_wdt:
253	margin: Watchdog margin in seconds (default 60s)
254	-------------------------------------------------
255	sb_wdog:
256	timeout: Watchdog timeout in microseconds (max/default 8388607 or 8.3ish secs)
257	-------------------------------------------------
258	sbc60xxwdt:
259	wdt_stop: SBC60xx WDT 'stop' io port (default 0x45)
260	wdt_start: SBC60xx WDT 'start' io port (default 0x443)
261	timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
262	nowayout: Watchdog cannot be stopped once started
263		(default=kernel config parameter)
264	-------------------------------------------------
265	sbc7240_wdt:
266	timeout: Watchdog timeout in seconds. (1<=timeout<=255, default=30)
267	nowayout: Disable watchdog when closing device file
268	-------------------------------------------------
269	sbc8360:
270	timeout: Index into timeout table (0-63) (default=27 (60s))
271	nowayout: Watchdog cannot be stopped once started
272		(default=kernel config parameter)
273	-------------------------------------------------
274	sbc_epx_c3:
275	nowayout: Watchdog cannot be stopped once started
276		(default=kernel config parameter)
277	-------------------------------------------------
278	sbc_fitpc2_wdt:
279	margin: Watchdog margin in seconds (default 60s)
280	nowayout: Watchdog cannot be stopped once started
281	-------------------------------------------------
282	sc1200wdt:
283	isapnp: When set to 0 driver ISA PnP support will be disabled (default=1)
284	io: io port
285	timeout: range is 0-255 minutes, default is 1
286	nowayout: Watchdog cannot be stopped once started
287		(default=kernel config parameter)
288	-------------------------------------------------
289	sc520_wdt:
290	timeout: Watchdog timeout in seconds. (1 <= timeout <= 3600, default=30)
291	nowayout: Watchdog cannot be stopped once started
292		(default=kernel config parameter)
293	-------------------------------------------------
294	sch311x_wdt:
295	force_id: Override the detected device ID
296	therm_trip: Should a ThermTrip trigger the reset generator
297	timeout: Watchdog timeout in seconds. 1<= timeout <=15300, default=60
298	nowayout: Watchdog cannot be stopped once started
299		(default=kernel config parameter)
300	-------------------------------------------------
301	scx200_wdt:
302	margin: Watchdog margin in seconds
303	nowayout: Disable watchdog shutdown on close
304	-------------------------------------------------
305	shwdt:
306	clock_division_ratio: Clock division ratio. Valid ranges are from 0x5 (1.31ms)
307		to 0x7 (5.25ms). (default=7)
308	heartbeat: Watchdog heartbeat in seconds. (1 <= heartbeat <= 3600, default=30
309	nowayout: Watchdog cannot be stopped once started
310		(default=kernel config parameter)
311	-------------------------------------------------
312	smsc37b787_wdt:
313	timeout: range is 1-255 units, default is 60
314	nowayout: Watchdog cannot be stopped once started
315		(default=kernel config parameter)
316	-------------------------------------------------
317	softdog:
318	soft_margin: Watchdog soft_margin in seconds.
319		(0 < soft_margin < 65536, default=60)
320	nowayout: Watchdog cannot be stopped once started
321		(default=kernel config parameter)
322	soft_noboot: Softdog action, set to 1 to ignore reboots, 0 to reboot
323		(default=0)
324	-------------------------------------------------
325	stmp3xxx_wdt:
326	heartbeat: Watchdog heartbeat period in seconds from 1 to 4194304, default 19
327	-------------------------------------------------
328	ts72xx_wdt:
329	timeout: Watchdog timeout in seconds. (1 <= timeout <= 8, default=8)
330	nowayout: Disable watchdog shutdown on close
331	-------------------------------------------------
332	twl4030_wdt:
333	nowayout: Watchdog cannot be stopped once started
334		(default=kernel config parameter)
335	-------------------------------------------------
336	txx9wdt:
337	timeout: Watchdog timeout in seconds. (0<timeout<N, default=60)
338	nowayout: Watchdog cannot be stopped once started
339		(default=kernel config parameter)
340	-------------------------------------------------
341	w83627hf_wdt:
342	wdt_io: w83627hf/thf WDT io port (default 0x2E)
343	timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
344	nowayout: Watchdog cannot be stopped once started
345		(default=kernel config parameter)
346	-------------------------------------------------
347	w83697hf_wdt:
348	wdt_io: w83697hf/hg WDT io port (default 0x2e, 0 = autodetect)
349	timeout: Watchdog timeout in seconds. 1<= timeout <=255 (default=60)
350	nowayout: Watchdog cannot be stopped once started
351		(default=kernel config parameter)
352	early_disable: Watchdog gets disabled at boot time (default=1)
353	-------------------------------------------------
354	w83697ug_wdt:
355	wdt_io: w83697ug/uf WDT io port (default 0x2e)
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	-------------------------------------------------
360	w83877f_wdt:
361	timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
362	nowayout: Watchdog cannot be stopped once started
363		(default=kernel config parameter)
364	-------------------------------------------------
365	w83977f_wdt:
366	timeout: Watchdog timeout in seconds (15..7635), default=45)
367	testmode: Watchdog testmode (1 = no reboot), default=0
368	nowayout: Watchdog cannot be stopped once started
369		(default=kernel config parameter)
370	-------------------------------------------------
371	wafer5823wdt:
372	timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
373	nowayout: Watchdog cannot be stopped once started
374		(default=kernel config parameter)
375	-------------------------------------------------
376	wdt285:
377	soft_margin: Watchdog timeout in seconds (default=60)
378	-------------------------------------------------
379	wdt977:
380	timeout: Watchdog timeout in seconds (60..15300, default=60)
381	testmode: Watchdog testmode (1 = no reboot), default=0
382	nowayout: Watchdog cannot be stopped once started
383		(default=kernel config parameter)
384	-------------------------------------------------
385	wm831x_wdt:
386	nowayout: Watchdog cannot be stopped once started
387		(default=kernel config parameter)
388	-------------------------------------------------
389	wm8350_wdt:
390	nowayout: Watchdog cannot be stopped once started
391		(default=kernel config parameter)
392	-------------------------------------------------
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