[linux-block.git] / Documentation / watchdog / watchdog-parameters.rst

==========================
WatchDog Module Parameters
==========================

This file provides information on the module parameters of many of
the Linux watchdog drivers.  Watchdog driver parameter specs should
be listed here unless the driver has its own driver-specific information
file.

See Documentation/admin-guide/kernel-parameters.rst for information on
providing kernel parameters for builtin drivers versus loadable
modules.

-------------------------------------------------

watchdog core:
    open_timeout:
	Maximum time, in seconds, for which the watchdog framework will take
	care of pinging a running hardware watchdog until userspace opens the
	corresponding /dev/watchdogN device. A value of 0 means an infinite
	timeout. Setting this to a non-zero value can be useful to ensure that
	either userspace comes up properly, or the board gets reset and allows
	fallback logic in the bootloader to try something else.

-------------------------------------------------

acquirewdt:
    wdt_stop:
	Acquire WDT 'stop' io port (default 0x43)
    wdt_start:
	Acquire WDT 'start' io port (default 0x443)
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

advantechwdt:
    wdt_stop:
	Advantech WDT 'stop' io port (default 0x443)
    wdt_start:
	Advantech WDT 'start' io port (default 0x443)
    timeout:
	Watchdog timeout in seconds. 1<= timeout <=63, default=60.
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

alim1535_wdt:
    timeout:
	Watchdog timeout in seconds. (0 < timeout < 18000, default=60
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

alim7101_wdt:
    timeout:
	Watchdog timeout in seconds. (1<=timeout<=3600, default=30
    use_gpio:
	Use the gpio watchdog (required by old cobalt boards).
	default=0/off/no
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

ar7_wdt:
    margin:
	Watchdog margin in seconds (default=60)
    nowayout:
	Disable watchdog shutdown on close
	(default=kernel config parameter)

-------------------------------------------------

armada_37xx_wdt:
    timeout:
	Watchdog timeout in seconds. (default=120)
    nowayout:
	Disable watchdog shutdown on close
	(default=kernel config parameter)

-------------------------------------------------

at91rm9200_wdt:
    wdt_time:
	Watchdog time in seconds. (default=5)
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

at91sam9_wdt:
    heartbeat:
	Watchdog heartbeats in seconds. (default = 15)
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

bcm47xx_wdt:
    wdt_time:
	Watchdog time in seconds. (default=30)
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

coh901327_wdt:
    margin:
	Watchdog margin in seconds (default 60s)

-------------------------------------------------

cpu5wdt:
    port:
	base address of watchdog card, default is 0x91
    verbose:
	be verbose, default is 0 (no)
    ticks:
	count down ticks, default is 10000

-------------------------------------------------

cpwd:
    wd0_timeout:
	Default watchdog0 timeout in 1/10secs
    wd1_timeout:
	Default watchdog1 timeout in 1/10secs
    wd2_timeout:
	Default watchdog2 timeout in 1/10secs

-------------------------------------------------

da9052wdt:
    timeout:
	Watchdog timeout in seconds. 2<= timeout <=131, default=2.048s
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

davinci_wdt:
    heartbeat:
	Watchdog heartbeat period in seconds from 1 to 600, default 60

-------------------------------------------------

ebc-c384_wdt:
    timeout:
	Watchdog timeout in seconds. (1<=timeout<=15300, default=60)
    nowayout:
	Watchdog cannot be stopped once started

-------------------------------------------------

ep93xx_wdt:
    nowayout:
	Watchdog cannot be stopped once started
    timeout:
	Watchdog timeout in seconds. (1<=timeout<=3600, default=TBD)

-------------------------------------------------

eurotechwdt:
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)
    io:
	Eurotech WDT io port (default=0x3f0)
    irq:
	Eurotech WDT irq (default=10)
    ev:
	Eurotech WDT event type (default is `int`)

-------------------------------------------------

gef_wdt:
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

geodewdt:
    timeout:
	Watchdog timeout in seconds. 1<= timeout <=131, default=60.
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

i6300esb:
    heartbeat:
	Watchdog heartbeat in seconds. (1<heartbeat<2046, default=30)
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

iTCO_wdt:
    heartbeat:
	Watchdog heartbeat in seconds.
	(2<heartbeat<39 (TCO v1) or 613 (TCO v2), default=30)
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

iTCO_vendor_support:
    vendorsupport:
	iTCO vendor specific support mode, default=0 (none),
	1=SuperMicro Pent3, 2=SuperMicro Pent4+, 911=Broken SMI BIOS

-------------------------------------------------

ib700wdt:
    timeout:
	Watchdog timeout in seconds. 0<= timeout <=30, default=30.
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

ibmasr:
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

imx2_wdt:
    timeout:
	Watchdog timeout in seconds (default 60 s)
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

indydog:
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

iop_wdt:
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

it8712f_wdt:
    margin:
	Watchdog margin in seconds (default 60)
    nowayout:
	Disable watchdog shutdown on close
	(default=kernel config parameter)

-------------------------------------------------

it87_wdt:
    nogameport:
	Forbid the activation of game port, default=0
    nocir:
	Forbid the use of CIR (workaround for some buggy setups); set to 1 if
system resets despite watchdog daemon running, default=0
    exclusive:
	Watchdog exclusive device open, default=1
    timeout:
	Watchdog timeout in seconds, default=60
    testmode:
	Watchdog test mode (1 = no reboot), default=0
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

ixp4xx_wdt:
    heartbeat:
	Watchdog heartbeat in seconds (default 60s)
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

machzwd:
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)
    action:
	after watchdog resets, generate:
	0 = RESET(*)  1 = SMI  2 = NMI  3 = SCI

-------------------------------------------------

max63xx_wdt:
    heartbeat:
	Watchdog heartbeat period in seconds from 1 to 60, default 60
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)
    nodelay:
	Force selection of a timeout setting without initial delay
	(max6373/74 only, default=0)

-------------------------------------------------

mixcomwd:
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

mpc8xxx_wdt:
    timeout:
	Watchdog timeout in ticks. (0<timeout<65536, default=65535)
    reset:
	Watchdog Interrupt/Reset Mode. 0 = interrupt, 1 = reset
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

mv64x60_wdt:
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

ni903x_wdt:
    timeout:
	Initial watchdog timeout in seconds (0<timeout<516, default=60)
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

nic7018_wdt:
    timeout:
	Initial watchdog timeout in seconds (0<timeout<464, default=80)
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

omap_wdt:
    timer_margin:
	initial watchdog timeout (in seconds)
    early_enable:
	Watchdog is started on module insertion (default=0
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

orion_wdt:
    heartbeat:
	Initial watchdog heartbeat in seconds
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

pc87413_wdt:
    io:
	pc87413 WDT I/O port (default: io).
    timeout:
	Watchdog timeout in minutes (default=timeout).
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

pika_wdt:
    heartbeat:
	Watchdog heartbeats in seconds. (default = 15)
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

pnx4008_wdt:
    heartbeat:
	Watchdog heartbeat period in seconds from 1 to 60, default 19
    nowayout:
	Set to 1 to keep watchdog running after device release

-------------------------------------------------

pnx833x_wdt:
    timeout:
	Watchdog timeout in Mhz. (68Mhz clock), default=2040000000 (30 seconds)
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)
    start_enabled:
	Watchdog is started on module insertion (default=1)

-------------------------------------------------

pseries-wdt:
    action:
	Action taken when watchdog expires: 0 (power off), 1 (restart),
	2 (dump and restart). (default=1)
    timeout:
	Initial watchdog timeout in seconds. (default=60)
    nowayout:
	Watchdog cannot be stopped once started.
	(default=kernel config parameter)

-------------------------------------------------

rc32434_wdt:
    timeout:
	Watchdog timeout value, in seconds (default=20)
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

riowd:
    riowd_timeout:
	Watchdog timeout in minutes (default=1)

-------------------------------------------------

s3c2410_wdt:
    tmr_margin:
	Watchdog tmr_margin in seconds. (default=15)
    tmr_atboot:
	Watchdog is started at boot time if set to 1, default=0
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)
    soft_noboot:
	Watchdog action, set to 1 to ignore reboots, 0 to reboot
    debug:
	Watchdog debug, set to >1 for debug, (default 0)

-------------------------------------------------

sa1100_wdt:
    margin:
	Watchdog margin in seconds (default 60s)

-------------------------------------------------

sb_wdog:
    timeout:
	Watchdog timeout in microseconds (max/default 8388607 or 8.3ish secs)

-------------------------------------------------

sbc60xxwdt:
    wdt_stop:
	SBC60xx WDT 'stop' io port (default 0x45)
    wdt_start:
	SBC60xx WDT 'start' io port (default 0x443)
    timeout:
	Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

sbc7240_wdt:
    timeout:
	Watchdog timeout in seconds. (1<=timeout<=255, default=30)
    nowayout:
	Disable watchdog when closing device file

-------------------------------------------------

sbc8360:
    timeout:
	Index into timeout table (0-63) (default=27 (60s))
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

sbc_epx_c3:
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

sbc_fitpc2_wdt:
    margin:
	Watchdog margin in seconds (default 60s)
    nowayout:
	Watchdog cannot be stopped once started

-------------------------------------------------

sbsa_gwdt:
    timeout:
	Watchdog timeout in seconds. (default 10s)
    action:
	Watchdog action at the first stage timeout,
	set to 0 to ignore, 1 to panic. (default=0)
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

sc1200wdt:
    isapnp:
	When set to 0 driver ISA PnP support will be disabled (default=1)
    io:
	io port
    timeout:
	range is 0-255 minutes, default is 1
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

sc520_wdt:
    timeout:
	Watchdog timeout in seconds. (1 <= timeout <= 3600, default=30)
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

sch311x_wdt:
    force_id:
	Override the detected device ID
    therm_trip:
	Should a ThermTrip trigger the reset generator
    timeout:
	Watchdog timeout in seconds. 1<= timeout <=15300, default=60
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

scx200_wdt:
    margin:
	Watchdog margin in seconds
    nowayout:
	Disable watchdog shutdown on close

-------------------------------------------------

shwdt:
    clock_division_ratio:
	Clock division ratio. Valid ranges are from 0x5 (1.31ms)
	to 0x7 (5.25ms). (default=7)
    heartbeat:
	Watchdog heartbeat in seconds. (1 <= heartbeat <= 3600, default=30
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

smsc37b787_wdt:
    timeout:
	range is 1-255 units, default is 60
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

softdog:
    soft_margin:
	Watchdog soft_margin in seconds.
	(0 < soft_margin < 65536, default=60)
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)
    soft_noboot:
	Softdog action, set to 1 to ignore reboots, 0 to reboot
	(default=0)

-------------------------------------------------

stmp3xxx_wdt:
    heartbeat:
	Watchdog heartbeat period in seconds from 1 to 4194304, default 19

-------------------------------------------------

tegra_wdt:
    heartbeat:
	Watchdog heartbeats in seconds. (default = 120)
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

ts72xx_wdt:
    timeout:
	Watchdog timeout in seconds. (1 <= timeout <= 8, default=8)
    nowayout:
	Disable watchdog shutdown on close

-------------------------------------------------

twl4030_wdt:
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

txx9wdt:
    timeout:
	Watchdog timeout in seconds. (0<timeout<N, default=60)
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

uniphier_wdt:
    timeout:
	Watchdog timeout in power of two seconds.
	(1 <= timeout <= 128, default=64)
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

w83627hf_wdt:
    wdt_io:
	w83627hf/thf WDT io port (default 0x2E)
    timeout:
	Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

w83877f_wdt:
    timeout:
	Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

w83977f_wdt:
    timeout:
	Watchdog timeout in seconds (15..7635), default=45)
    testmode:
	Watchdog testmode (1 = no reboot), default=0
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

wafer5823wdt:
    timeout:
	Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

wdt285:
    soft_margin:
	Watchdog timeout in seconds (default=60)

-------------------------------------------------

wdt977:
    timeout:
	Watchdog timeout in seconds (60..15300, default=60)
    testmode:
	Watchdog testmode (1 = no reboot), default=0
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

wm831x_wdt:
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

wm8350_wdt:
    nowayout:
	Watchdog cannot be stopped once started
	(default=kernel config parameter)

-------------------------------------------------

sun4v_wdt:
    timeout_ms:
	Watchdog timeout in milliseconds 1..180000, default=60000)
    nowayout:
	Watchdog cannot be stopped once started
Commit	Line	Data
74665686 MCC	1	==========================
	2	WatchDog Module Parameters
	3	==========================
	4
	5	This file provides information on the module parameters of many of
	6	the Linux watchdog drivers. Watchdog driver parameter specs should
	7	be listed here unless the driver has its own driver-specific information
	8	file.
	9
	10	See Documentation/admin-guide/kernel-parameters.rst for information on
	11	providing kernel parameters for builtin drivers versus loadable
	12	modules.
	13
	14	-------------------------------------------------
3bd41e59	15
74665686 MCC	16	watchdog core:
	17	open_timeout:
	18	Maximum time, in seconds, for which the watchdog framework will take
	19	care of pinging a running hardware watchdog until userspace opens the
	20	corresponding /dev/watchdogN device. A value of 0 means an infinite
	21	timeout. Setting this to a non-zero value can be useful to ensure that
	22	either userspace comes up properly, or the board gets reset and allows
	23	fallback logic in the bootloader to try something else.
	24
	25	-------------------------------------------------
3bd41e59	26
74665686 MCC	27	acquirewdt:
	28	wdt_stop:
	29	Acquire WDT 'stop' io port (default 0x43)
	30	wdt_start:
	31	Acquire WDT 'start' io port (default 0x443)
	32	nowayout:
	33	Watchdog cannot be stopped once started
	34	(default=kernel config parameter)
	35
	36	-------------------------------------------------
	37
	38	advantechwdt:
	39	wdt_stop:
	40	Advantech WDT 'stop' io port (default 0x443)
	41	wdt_start:
	42	Advantech WDT 'start' io port (default 0x443)
	43	timeout:
	44	Watchdog timeout in seconds. 1<= timeout <=63, default=60.
	45	nowayout:
	46	Watchdog cannot be stopped once started
	47	(default=kernel config parameter)
	48
	49	-------------------------------------------------
	50
	51	alim1535_wdt:
	52	timeout:
	53	Watchdog timeout in seconds. (0 < timeout < 18000, default=60
	54	nowayout:
	55	Watchdog cannot be stopped once started
	56	(default=kernel config parameter)
	57
	58	-------------------------------------------------
	59
	60	alim7101_wdt:
	61	timeout:
	62	Watchdog timeout in seconds. (1<=timeout<=3600, default=30
	63	use_gpio:
	64	Use the gpio watchdog (required by old cobalt boards).
	65	default=0/off/no
	66	nowayout:
	67	Watchdog cannot be stopped once started
	68	(default=kernel config parameter)
	69
	70	-------------------------------------------------
	71
	72	ar7_wdt:
	73	margin:
	74	Watchdog margin in seconds (default=60)
	75	nowayout:
	76	Disable watchdog shutdown on close
	77	(default=kernel config parameter)
	78
	79	-------------------------------------------------
	80
	81	armada_37xx_wdt:
	82	timeout:
	83	Watchdog timeout in seconds. (default=120)
	84	nowayout:
	85	Disable watchdog shutdown on close
	86	(default=kernel config parameter)
	87
	88	-------------------------------------------------
	89
	90	at91rm9200_wdt:
91	wdt_time:
92	Watchdog time in seconds. (default=5)
93	nowayout:
94	Watchdog cannot be stopped once started
95	(default=kernel config parameter)
96
97	-------------------------------------------------
98
99	at91sam9_wdt:
100	heartbeat:
101	Watchdog heartbeats in seconds. (default = 15)
102	nowayout:
103	Watchdog cannot be stopped once started
104	(default=kernel config parameter)
105
106	-------------------------------------------------
107
108	bcm47xx_wdt:
109	wdt_time:
110	Watchdog time in seconds. (default=30)
111	nowayout:
112	Watchdog cannot be stopped once started
113	(default=kernel config parameter)
114
115	-------------------------------------------------
116
117	coh901327_wdt:
118	margin:
119	Watchdog margin in seconds (default 60s)
120
121	-------------------------------------------------
122
123	cpu5wdt:
124	port:
125	base address of watchdog card, default is 0x91
126	verbose:
127	be verbose, default is 0 (no)
128	ticks:
129	count down ticks, default is 10000
130
131	-------------------------------------------------
132
133	cpwd:
134	wd0_timeout:
135	Default watchdog0 timeout in 1/10secs
136	wd1_timeout:
137	Default watchdog1 timeout in 1/10secs
138	wd2_timeout:
139	Default watchdog2 timeout in 1/10secs
140
141	-------------------------------------------------
142
143	da9052wdt:
144	timeout:
145	Watchdog timeout in seconds. 2<= timeout <=131, default=2.048s
146	nowayout:
147	Watchdog cannot be stopped once started
148	(default=kernel config parameter)
149
150	-------------------------------------------------
151
152	davinci_wdt:
153	heartbeat:
154	Watchdog heartbeat period in seconds from 1 to 600, default 60
155
156	-------------------------------------------------
157
158	ebc-c384_wdt:
159	timeout:
160	Watchdog timeout in seconds. (1<=timeout<=15300, default=60)
161	nowayout:
162	Watchdog cannot be stopped once started
163
164	-------------------------------------------------
165
166	ep93xx_wdt:
167	nowayout:
168	Watchdog cannot be stopped once started
169	timeout:
170	Watchdog timeout in seconds. (1<=timeout<=3600, default=TBD)
171
172	-------------------------------------------------
173
174	eurotechwdt:
175	nowayout:
176	Watchdog cannot be stopped once started
177	(default=kernel config parameter)
178	io:
179	Eurotech WDT io port (default=0x3f0)
180	irq:
181	Eurotech WDT irq (default=10)
182	ev:
183	Eurotech WDT event type (default is `int`)
184
185	-------------------------------------------------
186
187	gef_wdt:
188	nowayout:
189	Watchdog cannot be stopped once started
190	(default=kernel config parameter)
191
192	-------------------------------------------------
193
194	geodewdt:
195	timeout:
196	Watchdog timeout in seconds. 1<= timeout <=131, default=60.
197	nowayout:
198	Watchdog cannot be stopped once started
199	(default=kernel config parameter)
200
201	-------------------------------------------------
202
203	i6300esb:
204	heartbeat:
205	Watchdog heartbeat in seconds. (1<heartbeat<2046, default=30)
206	nowayout:
207	Watchdog cannot be stopped once started
208	(default=kernel config parameter)
209
210	-------------------------------------------------
211
212	iTCO_wdt:
213	heartbeat:
214	Watchdog heartbeat in seconds.
215	(2<heartbeat<39 (TCO v1) or 613 (TCO v2), default=30)
216	nowayout:
217	Watchdog cannot be stopped once started
218	(default=kernel config parameter)
219
220	-------------------------------------------------
221
222	iTCO_vendor_support:
223	vendorsupport:
224	iTCO vendor specific support mode, default=0 (none),
225	1=SuperMicro Pent3, 2=SuperMicro Pent4+, 911=Broken SMI BIOS
226
227	-------------------------------------------------
228
229	ib700wdt:
230	timeout:
231	Watchdog timeout in seconds. 0<= timeout <=30, default=30.
232	nowayout:
233	Watchdog cannot be stopped once started
234	(default=kernel config parameter)
235
236	-------------------------------------------------
237
238	ibmasr:
239	nowayout:
240	Watchdog cannot be stopped once started
241	(default=kernel config parameter)
242
243	-------------------------------------------------
244
245	imx2_wdt:
246	timeout:
247	Watchdog timeout in seconds (default 60 s)
248	nowayout:
249	Watchdog cannot be stopped once started
250	(default=kernel config parameter)
251
252	-------------------------------------------------
253
254	indydog:
255	nowayout:
256	Watchdog cannot be stopped once started
257	(default=kernel config parameter)
258
259	-------------------------------------------------
260
261	iop_wdt:
262	nowayout:
263	Watchdog cannot be stopped once started
264	(default=kernel config parameter)
265
266	-------------------------------------------------
267
268	it8712f_wdt:
269	margin:
270	Watchdog margin in seconds (default 60)
271	nowayout:
272	Disable watchdog shutdown on close
273	(default=kernel config parameter)
274
275	-------------------------------------------------
276
277	it87_wdt:
278	nogameport:
279	Forbid the activation of game port, default=0
280	nocir:
281	Forbid the use of CIR (workaround for some buggy setups); set to 1 if
282	system resets despite watchdog daemon running, default=0
283	exclusive:
284	Watchdog exclusive device open, default=1
285	timeout:
286	Watchdog timeout in seconds, default=60
287	testmode:
288	Watchdog test mode (1 = no reboot), default=0
289	nowayout:
290	Watchdog cannot be stopped once started
291	(default=kernel config parameter)
292
293	-------------------------------------------------
294
295	ixp4xx_wdt:
296	heartbeat:
297	Watchdog heartbeat in seconds (default 60s)
298	nowayout:
299	Watchdog cannot be stopped once started
300	(default=kernel config parameter)
301
302	-------------------------------------------------
303
74665686 MCC	304	machzwd:
	305	nowayout:
	306	Watchdog cannot be stopped once started
	307	(default=kernel config parameter)
	308	action:
	309	after watchdog resets, generate:
	310	0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI
	311
	312	-------------------------------------------------
	313
	314	max63xx_wdt:
	315	heartbeat:
	316	Watchdog heartbeat period in seconds from 1 to 60, default 60
	317	nowayout:
	318	Watchdog cannot be stopped once started
	319	(default=kernel config parameter)
	320	nodelay:
	321	Force selection of a timeout setting without initial delay
	322	(max6373/74 only, default=0)
	323
	324	-------------------------------------------------
	325
	326	mixcomwd:
	327	nowayout:
	328	Watchdog cannot be stopped once started
	329	(default=kernel config parameter)
	330
	331	-------------------------------------------------
	332
	333	mpc8xxx_wdt:
	334	timeout:
	335	Watchdog timeout in ticks. (0<timeout<65536, default=65535)
	336	reset:
	337	Watchdog Interrupt/Reset Mode. 0 = interrupt, 1 = reset
	338	nowayout:
	339	Watchdog cannot be stopped once started
	340	(default=kernel config parameter)
	341
	342	-------------------------------------------------
	343
	344	mv64x60_wdt:
	345	nowayout:
	346	Watchdog cannot be stopped once started
	347	(default=kernel config parameter)
	348
	349	-------------------------------------------------
	350
	351	ni903x_wdt:
	352	timeout:
	353	Initial watchdog timeout in seconds (0<timeout<516, default=60)
	354	nowayout:
	355	Watchdog cannot be stopped once started
	356	(default=kernel config parameter)
	357
	358	-------------------------------------------------
	359
	360	nic7018_wdt:
	361	timeout:
	362	Initial watchdog timeout in seconds (0<timeout<464, default=80)
	363	nowayout:
	364	Watchdog cannot be stopped once started
	365	(default=kernel config parameter)
	366
	367	-------------------------------------------------
368
74665686 MCC	369	omap_wdt:
	370	timer_margin:
	371	initial watchdog timeout (in seconds)
	372	early_enable:
	373	Watchdog is started on module insertion (default=0
	374	nowayout:
	375	Watchdog cannot be stopped once started
	376	(default=kernel config parameter)
	377
	378	-------------------------------------------------
	379
	380	orion_wdt:
	381	heartbeat:
	382	Initial watchdog heartbeat in seconds
	383	nowayout:
	384	Watchdog cannot be stopped once started
	385	(default=kernel config parameter)
	386
	387	-------------------------------------------------
	388
	389	pc87413_wdt:
	390	io:
	391	pc87413 WDT I/O port (default: io).
	392	timeout:
	393	Watchdog timeout in minutes (default=timeout).
	394	nowayout:
	395	Watchdog cannot be stopped once started
	396	(default=kernel config parameter)
	397
	398	-------------------------------------------------
	399
	400	pika_wdt:
	401	heartbeat:
	402	Watchdog heartbeats in seconds. (default = 15)
	403	nowayout:
	404	Watchdog cannot be stopped once started
	405	(default=kernel config parameter)
	406
	407	-------------------------------------------------
	408
	409	pnx4008_wdt:
	410	heartbeat:
	411	Watchdog heartbeat period in seconds from 1 to 60, default 19
	412	nowayout:
	413	Set to 1 to keep watchdog running after device release
	414
	415	-------------------------------------------------
	416
	417	pnx833x_wdt:
	418	timeout:
	419	Watchdog timeout in Mhz. (68Mhz clock), default=2040000000 (30 seconds)
	420	nowayout:
	421	Watchdog cannot be stopped once started
	422	(default=kernel config parameter)
	423	start_enabled:
	424	Watchdog is started on module insertion (default=1)
	425
	426	-------------------------------------------------
	427
69472ffa SC	428	pseries-wdt:
	429	action:
	430	Action taken when watchdog expires: 0 (power off), 1 (restart),
	431	2 (dump and restart). (default=1)
	432	timeout:
	433	Initial watchdog timeout in seconds. (default=60)
	434	nowayout:
	435	Watchdog cannot be stopped once started.
	436	(default=kernel config parameter)
	437
	438	-------------------------------------------------
	439
74665686 MCC	440	rc32434_wdt:
	441	timeout:
	442	Watchdog timeout value, in seconds (default=20)
	443	nowayout:
	444	Watchdog cannot be stopped once started
	445	(default=kernel config parameter)
	446
	447	-------------------------------------------------
	448
	449	riowd:
	450	riowd_timeout:
	451	Watchdog timeout in minutes (default=1)
	452
	453	-------------------------------------------------
	454
	455	s3c2410_wdt:
	456	tmr_margin:
	457	Watchdog tmr_margin in seconds. (default=15)
	458	tmr_atboot:
	459	Watchdog is started at boot time if set to 1, default=0
	460	nowayout:
	461	Watchdog cannot be stopped once started
	462	(default=kernel config parameter)
	463	soft_noboot:
	464	Watchdog action, set to 1 to ignore reboots, 0 to reboot
	465	debug:
	466	Watchdog debug, set to >1 for debug, (default 0)
	467
	468	-------------------------------------------------
	469
	470	sa1100_wdt:
	471	margin:
	472	Watchdog margin in seconds (default 60s)
	473
	474	-------------------------------------------------
	475
	476	sb_wdog:
	477	timeout:
	478	Watchdog timeout in microseconds (max/default 8388607 or 8.3ish secs)
	479
	480	-------------------------------------------------
	481
	482	sbc60xxwdt:
	483	wdt_stop:
	484	SBC60xx WDT 'stop' io port (default 0x45)
	485	wdt_start:
	486	SBC60xx WDT 'start' io port (default 0x443)
	487	timeout:
	488	Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
	489	nowayout:
	490	Watchdog cannot be stopped once started
	491	(default=kernel config parameter)
	492
	493	-------------------------------------------------
	494
	495	sbc7240_wdt:
	496	timeout:
	497	Watchdog timeout in seconds. (1<=timeout<=255, default=30)
	498	nowayout:
	499	Disable watchdog when closing device file
	500
	501	-------------------------------------------------
	502
	503	sbc8360:
504	timeout:
505	Index into timeout table (0-63) (default=27 (60s))
506	nowayout:
507	Watchdog cannot be stopped once started
508	(default=kernel config parameter)
509
510	-------------------------------------------------
511
512	sbc_epx_c3:
513	nowayout:
514	Watchdog cannot be stopped once started
515	(default=kernel config parameter)
516
517	-------------------------------------------------
518
519	sbc_fitpc2_wdt:
520	margin:
521	Watchdog margin in seconds (default 60s)
522	nowayout:
523	Watchdog cannot be stopped once started
524
525	-------------------------------------------------
526
527	sbsa_gwdt:
528	timeout:
529	Watchdog timeout in seconds. (default 10s)
530	action:
531	Watchdog action at the first stage timeout,
532	set to 0 to ignore, 1 to panic. (default=0)
533	nowayout:
534	Watchdog cannot be stopped once started
535	(default=kernel config parameter)
536
537	-------------------------------------------------
538
539	sc1200wdt:
540	isapnp:
541	When set to 0 driver ISA PnP support will be disabled (default=1)
542	io:
543	io port
544	timeout:
545	range is 0-255 minutes, default is 1
546	nowayout:
547	Watchdog cannot be stopped once started
548	(default=kernel config parameter)
549
550	-------------------------------------------------
551
552	sc520_wdt:
553	timeout:
554	Watchdog timeout in seconds. (1 <= timeout <= 3600, default=30)
555	nowayout:
556	Watchdog cannot be stopped once started
557	(default=kernel config parameter)
558
559	-------------------------------------------------
560
561	sch311x_wdt:
562	force_id:
563	Override the detected device ID
564	therm_trip:
565	Should a ThermTrip trigger the reset generator
566	timeout:
567	Watchdog timeout in seconds. 1<= timeout <=15300, default=60
568	nowayout:
569	Watchdog cannot be stopped once started
570	(default=kernel config parameter)
571
572	-------------------------------------------------
573
574	scx200_wdt:
575	margin:
576	Watchdog margin in seconds
577	nowayout:
578	Disable watchdog shutdown on close
579
580	-------------------------------------------------
581
582	shwdt:
583	clock_division_ratio:
584	Clock division ratio. Valid ranges are from 0x5 (1.31ms)
585	to 0x7 (5.25ms). (default=7)
586	heartbeat:
587	Watchdog heartbeat in seconds. (1 <= heartbeat <= 3600, default=30
588	nowayout:
589	Watchdog cannot be stopped once started
590	(default=kernel config parameter)
591
592	-------------------------------------------------
593
594	smsc37b787_wdt:
595	timeout:
596	range is 1-255 units, default is 60
597	nowayout:
598	Watchdog cannot be stopped once started
599	(default=kernel config parameter)
600
601	-------------------------------------------------
602
603	softdog:
604	soft_margin:
605	Watchdog soft_margin in seconds.
606	(0 < soft_margin < 65536, default=60)
607	nowayout:
608	Watchdog cannot be stopped once started
609	(default=kernel config parameter)
610	soft_noboot:
611	Softdog action, set to 1 to ignore reboots, 0 to reboot
612	(default=0)
613
614	-------------------------------------------------
615
616	stmp3xxx_wdt:
617	heartbeat:
618	Watchdog heartbeat period in seconds from 1 to 4194304, default 19
619
620	-------------------------------------------------
621
622	tegra_wdt:
623	heartbeat:
624	Watchdog heartbeats in seconds. (default = 120)
625	nowayout:
626	Watchdog cannot be stopped once started
627	(default=kernel config parameter)
628
629	-------------------------------------------------
630
631	ts72xx_wdt:
632	timeout:
633	Watchdog timeout in seconds. (1 <= timeout <= 8, default=8)
634	nowayout:
635	Disable watchdog shutdown on close
636
637	-------------------------------------------------
638
639	twl4030_wdt:
640	nowayout:
641	Watchdog cannot be stopped once started
642	(default=kernel config parameter)
643
644	-------------------------------------------------
645
646	txx9wdt:
647	timeout:
648	Watchdog timeout in seconds. (0<timeout<N, default=60)
649	nowayout:
650	Watchdog cannot be stopped once started
651	(default=kernel config parameter)
652
653	-------------------------------------------------
654
655	uniphier_wdt:
656	timeout:
657	Watchdog timeout in power of two seconds.
658	(1 <= timeout <= 128, default=64)
659	nowayout:
660	Watchdog cannot be stopped once started
661	(default=kernel config parameter)
662
663	-------------------------------------------------
664
665	w83627hf_wdt:
666	wdt_io:
667	w83627hf/thf WDT io port (default 0x2E)
668	timeout:
669	Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
670	nowayout:
671	Watchdog cannot be stopped once started
672	(default=kernel config parameter)
673
674	-------------------------------------------------
675
676	w83877f_wdt:
677	timeout:
678	Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
679	nowayout:
680	Watchdog cannot be stopped once started
681	(default=kernel config parameter)
682
683	-------------------------------------------------
684
685	w83977f_wdt:
686	timeout:
687	Watchdog timeout in seconds (15..7635), default=45)
688	testmode:
689	Watchdog testmode (1 = no reboot), default=0
690	nowayout:
691	Watchdog cannot be stopped once started
692	(default=kernel config parameter)
693
694	-------------------------------------------------
695
696	wafer5823wdt:
697	timeout:
698	Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
699	nowayout:
700	Watchdog cannot be stopped once started
701	(default=kernel config parameter)
702
703	-------------------------------------------------
704
705	wdt285:
706	soft_margin:
707	Watchdog timeout in seconds (default=60)
708
709	-------------------------------------------------
710
711	wdt977:
712	timeout:
713	Watchdog timeout in seconds (60..15300, default=60)
714	testmode:
715	Watchdog testmode (1 = no reboot), default=0
716	nowayout:
717	Watchdog cannot be stopped once started
718	(default=kernel config parameter)
719
720	-------------------------------------------------
721
722	wm831x_wdt:
723	nowayout:
724	Watchdog cannot be stopped once started
725	(default=kernel config parameter)
726
727	-------------------------------------------------
728
729	wm8350_wdt:
730	nowayout:
731	Watchdog cannot be stopped once started
732	(default=kernel config parameter)
733
734	-------------------------------------------------
735
736	sun4v_wdt:
737	timeout_ms:
738	Watchdog timeout in milliseconds 1..180000, default=60000)
739	nowayout:
740	Watchdog cannot be stopped once started