xref: /openbmc/linux/drivers/watchdog/Kconfig (revision dfc34940)
1#
2# Watchdog device configuration
3#
4
5menuconfig WATCHDOG
6	bool "Watchdog Timer Support"
7	---help---
8	  If you say Y here (and to one of the following options) and create a
9	  character special file /dev/watchdog with major number 10 and minor
10	  number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:
11	  subsequently opening the file and then failing to write to it for
12	  longer than 1 minute will result in rebooting the machine. This
13	  could be useful for a networked machine that needs to come back
14	  on-line as fast as possible after a lock-up. There's both a watchdog
15	  implementation entirely in software (which can sometimes fail to
16	  reboot the machine) and a driver for hardware watchdog boards, which
17	  are more robust and can also keep track of the temperature inside
18	  your computer. For details, read
19	  <file:Documentation/watchdog/watchdog-api.txt> in the kernel source.
20
21	  The watchdog is usually used together with the watchdog daemon
22	  which is available from
23	  <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can
24	  also monitor NFS connections and can reboot the machine when the process
25	  table is full.
26
27	  If unsure, say N.
28
29if WATCHDOG
30
31config WATCHDOG_NOWAYOUT
32	bool "Disable watchdog shutdown on close"
33	help
34	  The default watchdog behaviour (which you get if you say N here) is
35	  to stop the timer if the process managing it closes the file
36	  /dev/watchdog. It's always remotely possible that this process might
37	  get killed. If you say Y here, the watchdog cannot be stopped once
38	  it has been started.
39
40#
41# General Watchdog drivers
42#
43
44comment "Watchdog Device Drivers"
45
46# Architecture Independent
47
48config SOFT_WATCHDOG
49	tristate "Software watchdog"
50	help
51	  A software monitoring watchdog. This will fail to reboot your system
52	  from some situations that the hardware watchdog will recover
53	  from. Equally it's a lot cheaper to install.
54
55	  To compile this driver as a module, choose M here: the
56	  module will be called softdog.
57
58config WM831X_WATCHDOG
59	tristate "WM831x watchdog"
60	depends on MFD_WM831X
61	help
62	  Support for the watchdog in the WM831x AudioPlus PMICs.  When
63	  the watchdog triggers the system will be reset.
64
65config WM8350_WATCHDOG
66	tristate "WM8350 watchdog"
67	depends on MFD_WM8350
68	help
69	  Support for the watchdog in the WM8350 AudioPlus PMIC.  When
70	  the watchdog triggers the system will be reset.
71
72# ALPHA Architecture
73
74# ARM Architecture
75
76config AT91RM9200_WATCHDOG
77	tristate "AT91RM9200 watchdog"
78	depends on ARCH_AT91RM9200
79	help
80	  Watchdog timer embedded into AT91RM9200 chips. This will reboot your
81	  system when the timeout is reached.
82
83config AT91SAM9X_WATCHDOG
84	tristate "AT91SAM9X / AT91CAP9 watchdog"
85	depends on ARCH_AT91 && !ARCH_AT91RM9200
86	help
87	  Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
88	  reboot your system when the timeout is reached.
89
90config 21285_WATCHDOG
91	tristate "DC21285 watchdog"
92	depends on FOOTBRIDGE
93	help
94	  The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
95	  here if you wish to use this. Alternatively say M to compile the
96	  driver as a module, which will be called wdt285.
97
98	  This driver does not work on all machines. In particular, early CATS
99	  boards have hardware problems that will cause the machine to simply
100	  lock up if the watchdog fires.
101
102	  "If in doubt, leave it out" - say N.
103
104config 977_WATCHDOG
105	tristate "NetWinder WB83C977 watchdog"
106	depends on FOOTBRIDGE && ARCH_NETWINDER
107	help
108	  Say Y here to include support for the WB977 watchdog included in
109	  NetWinder machines. Alternatively say M to compile the driver as
110	  a module, which will be called wdt977.
111
112	  Not sure? It's safe to say N.
113
114config IXP2000_WATCHDOG
115	tristate "IXP2000 Watchdog"
116	depends on ARCH_IXP2000
117	help
118	  Say Y here if to include support for the watchdog timer
119	  in the Intel IXP2000(2400, 2800, 2850) network processors.
120	  This driver can be built as a module by choosing M. The module
121	  will be called ixp2000_wdt.
122
123	  Say N if you are unsure.
124
125config IXP4XX_WATCHDOG
126	tristate "IXP4xx Watchdog"
127	depends on ARCH_IXP4XX
128	help
129	  Say Y here if to include support for the watchdog timer
130	  in the Intel IXP4xx network processors. This driver can
131	  be built as a module by choosing M. The module will
132	  be called ixp4xx_wdt.
133
134	  Note: The internal IXP4xx watchdog does a soft CPU reset
135	  which doesn't reset any peripherals. There are circumstances
136	  where the watchdog will fail to reset the board correctly
137	  (e.g., if the boot ROM is in an unreadable state).
138
139	  Say N if you are unsure.
140
141config KS8695_WATCHDOG
142	tristate "KS8695 watchdog"
143	depends on ARCH_KS8695
144	help
145	  Watchdog timer embedded into KS8695 processor. This will reboot your
146	  system when the timeout is reached.
147
148config S3C2410_WATCHDOG
149	tristate "S3C2410 Watchdog"
150	depends on ARCH_S3C2410
151	help
152	  Watchdog timer block in the Samsung S3C2410 chips. This will
153	  reboot the system when the timer expires with the watchdog
154	  enabled.
155
156	  The driver is limited by the speed of the system's PCLK
157	  signal, so with reasonably fast systems (PCLK around 50-66MHz)
158	  then watchdog intervals of over approximately 20seconds are
159	  unavailable.
160
161	  The driver can be built as a module by choosing M, and will
162	  be called s3c2410_wdt
163
164config SA1100_WATCHDOG
165	tristate "SA1100/PXA2xx watchdog"
166	depends on ARCH_SA1100 || ARCH_PXA
167	help
168	  Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
169	  reboot your system when timeout is reached.
170
171	  NOTE: once enabled, this timer cannot be disabled.
172
173	  To compile this driver as a module, choose M here: the
174	  module will be called sa1100_wdt.
175
176config MPCORE_WATCHDOG
177	tristate "MPcore watchdog"
178	depends on ARM_MPCORE_PLATFORM && LOCAL_TIMERS
179	help
180	  Watchdog timer embedded into the MPcore system.
181
182	  To compile this driver as a module, choose M here: the
183	  module will be called mpcore_wdt.
184
185config EP93XX_WATCHDOG
186	tristate "EP93xx Watchdog"
187	depends on ARCH_EP93XX
188	help
189	  Say Y here if to include support for the watchdog timer
190	  embedded in the Cirrus Logic EP93xx family of devices.
191
192	  To compile this driver as a module, choose M here: the
193	  module will be called ep93xx_wdt.
194
195config OMAP_WATCHDOG
196	tristate "OMAP Watchdog"
197	depends on ARCH_OMAP16XX || ARCH_OMAP24XX || ARCH_OMAP34XX
198	help
199	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430 watchdog.  Say 'Y'
200	  here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430 watchdog timer.
201
202config PNX4008_WATCHDOG
203	tristate "PNX4008 Watchdog"
204	depends on ARCH_PNX4008
205	help
206	  Say Y here if to include support for the watchdog timer
207	  in the PNX4008 processor.
208	  This driver can be built as a module by choosing M. The module
209	  will be called pnx4008_wdt.
210
211	  Say N if you are unsure.
212
213config IOP_WATCHDOG
214	tristate "IOP Watchdog"
215	depends on PLAT_IOP
216	select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
217	help
218	  Say Y here if to include support for the watchdog timer
219	  in the Intel IOP3XX & IOP13XX I/O Processors.  This driver can
220	  be built as a module by choosing M. The module will
221	  be called iop_wdt.
222
223	  Note: The IOP13XX watchdog does an Internal Bus Reset which will
224	  affect both cores and the peripherals of the IOP.  The ATU-X
225	  and/or ATUe configuration registers will remain intact, but if
226	  operating as an Root Complex and/or Central Resource, the PCI-X
227	  and/or PCIe busses will also be reset.  THIS IS A VERY BIG HAMMER.
228
229config DAVINCI_WATCHDOG
230	tristate "DaVinci watchdog"
231	depends on ARCH_DAVINCI
232	help
233	  Say Y here if to include support for the watchdog timer
234	  in the DaVinci DM644x/DM646x processors.
235	  To compile this driver as a module, choose M here: the
236	  module will be called davinci_wdt.
237
238	  NOTE: once enabled, this timer cannot be disabled.
239	  Say N if you are unsure.
240
241config ORION_WATCHDOG
242	tristate "Orion watchdog"
243	depends on ARCH_ORION5X || ARCH_KIRKWOOD
244	help
245	  Say Y here if to include support for the watchdog timer
246	  in the Marvell Orion5x and Kirkwood ARM SoCs.
247	  To compile this driver as a module, choose M here: the
248	  module will be called orion_wdt.
249
250config COH901327_WATCHDOG
251	bool "ST-Ericsson COH 901 327 watchdog"
252	depends on ARCH_U300
253	default y if MACH_U300
254	help
255	  Say Y here to include Watchdog timer support for the
256	  watchdog embedded into the ST-Ericsson U300 series platforms.
257	  This watchdog is used to reset the system and thus cannot be
258	  compiled as a module.
259
260config TWL4030_WATCHDOG
261	tristate "TWL4030 Watchdog"
262	depends on TWL4030_CORE
263	help
264	  Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
265	  watchdog timer support for TWL4030 chips.
266
267config STMP3XXX_WATCHDOG
268	tristate "Freescale STMP3XXX watchdog"
269	depends on ARCH_STMP3XXX
270	help
271	  Say Y here if to include support for the watchdog timer
272	  for the Sigmatel STMP37XX/378X SoC.
273	  To compile this driver as a module, choose M here: the
274	  module will be called stmp3xxx_wdt.
275
276config NUC900_WATCHDOG
277	tristate "Nuvoton NUC900 watchdog"
278	depends on ARCH_W90X900
279	help
280	  Say Y here if to include support for the watchdog timer
281	  for the Nuvoton NUC900 series SoCs.
282	  To compile this driver as a module, choose M here: the
283	  module will be called nuc900_wdt.
284
285config ADX_WATCHDOG
286	tristate "Avionic Design Xanthos watchdog"
287	depends on ARCH_PXA_ADX
288	help
289	  Say Y here if you want support for the watchdog timer on Avionic
290	  Design Xanthos boards.
291
292# AVR32 Architecture
293
294config AT32AP700X_WDT
295	tristate "AT32AP700x watchdog"
296	depends on CPU_AT32AP700X
297	help
298	  Watchdog timer embedded into AT32AP700x devices. This will reboot
299	  your system when the timeout is reached.
300
301# BLACKFIN Architecture
302
303config BFIN_WDT
304	tristate "Blackfin On-Chip Watchdog Timer"
305	depends on BLACKFIN
306	---help---
307	  If you say yes here you will get support for the Blackfin On-Chip
308	  Watchdog Timer. If you have one of these processors and wish to
309	  have watchdog support enabled, say Y, otherwise say N.
310
311	  To compile this driver as a module, choose M here: the
312	  module will be called bfin_wdt.
313
314# CRIS Architecture
315
316# FRV Architecture
317
318# H8300 Architecture
319
320# X86 (i386 + ia64 + x86_64) Architecture
321
322config ACQUIRE_WDT
323	tristate "Acquire SBC Watchdog Timer"
324	depends on X86
325	---help---
326	  This is the driver for the hardware watchdog on Single Board
327	  Computers produced by Acquire Inc (and others). This watchdog
328	  simply watches your kernel to make sure it doesn't freeze, and if
329	  it does, it reboots your computer after a certain amount of time.
330
331	  To compile this driver as a module, choose M here: the
332	  module will be called acquirewdt.
333
334	  Most people will say N.
335
336config ADVANTECH_WDT
337	tristate "Advantech SBC Watchdog Timer"
338	depends on X86
339	help
340	  If you are configuring a Linux kernel for the Advantech single-board
341	  computer, say `Y' here to support its built-in watchdog timer
342	  feature. More information can be found at
343	  <http://www.advantech.com.tw/products/>
344
345config ALIM1535_WDT
346	tristate "ALi M1535 PMU Watchdog Timer"
347	depends on X86 && PCI
348	---help---
349	  This is the driver for the hardware watchdog on the ALi M1535 PMU.
350
351	  To compile this driver as a module, choose M here: the
352	  module will be called alim1535_wdt.
353
354	  Most people will say N.
355
356config ALIM7101_WDT
357	tristate "ALi M7101 PMU Computer Watchdog"
358	depends on PCI
359	help
360	  This is the driver for the hardware watchdog on the ALi M7101 PMU
361	  as used in the x86 Cobalt servers and also found in some
362	  SPARC Netra servers too.
363
364	  To compile this driver as a module, choose M here: the
365	  module will be called alim7101_wdt.
366
367	  Most people will say N.
368
369config GEODE_WDT
370	tristate "AMD Geode CS5535/CS5536 Watchdog"
371	depends on MGEODE_LX
372	help
373	  This driver enables a watchdog capability built into the
374	  CS5535/CS5536 companion chips for the AMD Geode GX and LX
375	  processors.  This watchdog watches your kernel to make sure
376	  it doesn't freeze, and if it does, it reboots your computer after
377	  a certain amount of time.
378
379	  You can compile this driver directly into the kernel, or use
380	  it as a module.  The module will be called geodewdt.
381
382config SC520_WDT
383	tristate "AMD Elan SC520 processor Watchdog"
384	depends on X86
385	help
386	  This is the driver for the hardware watchdog built in to the
387	  AMD "Elan" SC520 microcomputer commonly used in embedded systems.
388	  This watchdog simply watches your kernel to make sure it doesn't
389	  freeze, and if it does, it reboots your computer after a certain
390	  amount of time.
391
392	  You can compile this driver directly into the kernel, or use
393	  it as a module.  The module will be called sc520_wdt.
394
395config SBC_FITPC2_WATCHDOG
396	tristate "Compulab SBC-FITPC2 watchdog"
397	depends on X86
398	---help---
399	  This is the driver for the built-in watchdog timer on the fit-PC2
400	  Single-board computer made by Compulab.
401
402	  It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
403	  When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
404
405	  Entering BIOS setup temporary disables watchdog operation regardless to current state,
406	  so system will not be restarted while user in BIOS setup.
407
408	  Once watchdog was enabled the system will be restarted every
409	  "Watchdog Timer Value" period, so to prevent it user can restart or
410	  disable the watchdog.
411
412	  To compile this driver as a module, choose M here: the
413	  module will be called sbc_fitpc2_wdt.
414
415	  Most people will say N.
416
417config EUROTECH_WDT
418	tristate "Eurotech CPU-1220/1410 Watchdog Timer"
419	depends on X86
420	help
421	  Enable support for the watchdog timer on the Eurotech CPU-1220 and
422	  CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
423	  information are at <http://www.eurotech.it/>.
424
425config IB700_WDT
426	tristate "IB700 SBC Watchdog Timer"
427	depends on X86
428	---help---
429	  This is the driver for the hardware watchdog on the IB700 Single
430	  Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
431	  simply watches your kernel to make sure it doesn't freeze, and if
432	  it does, it reboots your computer after a certain amount of time.
433
434	  This driver is like the WDT501 driver but for slightly different hardware.
435
436	  To compile this driver as a module, choose M here: the
437	  module will be called ib700wdt.
438
439	  Most people will say N.
440
441config IBMASR
442	tristate "IBM Automatic Server Restart"
443	depends on X86
444	help
445	  This is the driver for the IBM Automatic Server Restart watchdog
446	  timer built-in into some eServer xSeries machines.
447
448	  To compile this driver as a module, choose M here: the
449	  module will be called ibmasr.
450
451config WAFER_WDT
452	tristate "ICP Single Board Computer Watchdog Timer"
453	depends on X86
454	help
455	  This is a driver for the hardware watchdog on the ICP Single
456	  Board Computer. This driver is working on (at least) the following
457	  IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
458
459	  To compile this driver as a module, choose M here: the
460	  module will be called wafer5823wdt.
461
462config I6300ESB_WDT
463	tristate "Intel 6300ESB Timer/Watchdog"
464	depends on X86 && PCI
465	---help---
466	  Hardware driver for the watchdog timer built into the Intel
467	  6300ESB controller hub.
468
469	  To compile this driver as a module, choose M here: the
470	  module will be called i6300esb.
471
472config ITCO_WDT
473	tristate "Intel TCO Timer/Watchdog"
474	depends on (X86 || IA64) && PCI
475	---help---
476	  Hardware driver for the intel TCO timer based watchdog devices.
477	  These drivers are included in the Intel 82801 I/O Controller
478	  Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
479	  controller hub.
480
481	  The TCO (Total Cost of Ownership) timer is a watchdog timer
482	  that will reboot the machine after its second expiration. The
483	  expiration time can be configured with the "heartbeat" parameter.
484
485	  On some motherboards the driver may fail to reset the chipset's
486	  NO_REBOOT flag which prevents the watchdog from rebooting the
487	  machine. If this is the case you will get a kernel message like
488	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
489
490	  To compile this driver as a module, choose M here: the
491	  module will be called iTCO_wdt.
492
493config ITCO_VENDOR_SUPPORT
494	bool "Intel TCO Timer/Watchdog Specific Vendor Support"
495	depends on ITCO_WDT
496	---help---
497	  Add vendor specific support to the intel TCO timer based watchdog
498	  devices. At this moment we only have additional support for some
499	  SuperMicro Inc. motherboards.
500
501config IT8712F_WDT
502	tristate "IT8712F (Smart Guardian) Watchdog Timer"
503	depends on X86
504	---help---
505	  This is the driver for the built-in watchdog timer on the IT8712F
506	  Super I/0 chipset used on many motherboards.
507
508	  To compile this driver as a module, choose M here: the
509	  module will be called it8712f_wdt.
510
511config IT87_WDT
512	tristate "IT87 Watchdog Timer"
513	depends on X86 && EXPERIMENTAL
514	---help---
515	  This is the driver for the hardware watchdog on the ITE IT8716,
516	  IT8718, IT8726, IT8712(Version J,K) Super I/O chips. This watchdog
517	  simply watches your kernel to make sure it doesn't freeze, and if
518	  it does, it reboots your computer after a certain amount of time.
519
520	  To compile this driver as a module, choose M here: the module will
521	  be called it87_wdt.
522
523config HP_WATCHDOG
524	tristate "HP Proliant iLO 2 Hardware Watchdog Timer"
525	depends on X86
526	help
527	  A software monitoring watchdog and NMI sourcing driver. This driver
528	  will detect lockups and provide stack trace. Also, when an NMI
529	  occurs this driver will make the necessary BIOS calls to log
530	  the cause of the NMI. This is a driver that will only load on a
531	  HP ProLiant system with a minimum of iLO2 support.
532	  To compile this driver as a module, choose M here: the
533	  module will be called hpwdt.
534
535config SC1200_WDT
536	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
537	depends on X86
538	help
539	  This is a driver for National Semiconductor PC87307/PC97307 hardware
540	  watchdog cards as found on the SC1200. This watchdog is mainly used
541	  for power management purposes and can be used to power down the device
542	  during inactivity periods (includes interrupt activity monitoring).
543
544	  To compile this driver as a module, choose M here: the
545	  module will be called sc1200wdt.
546
547	  Most people will say N.
548
549config SCx200_WDT
550	tristate "National Semiconductor SCx200 Watchdog"
551	depends on SCx200 && PCI
552	help
553	  Enable the built-in watchdog timer support on the National
554	  Semiconductor SCx200 processors.
555
556	  If compiled as a module, it will be called scx200_wdt.
557
558config PC87413_WDT
559	tristate "NS PC87413 watchdog"
560	depends on X86
561	---help---
562	  This is the driver for the hardware watchdog on the PC87413 chipset
563	  This watchdog simply watches your kernel to make sure it doesn't
564	  freeze, and if it does, it reboots your computer after a certain
565	  amount of time.
566
567	  To compile this driver as a module, choose M here: the
568	  module will be called pc87413_wdt.
569
570	  Most people will say N.
571
572config RDC321X_WDT
573	tristate "RDC R-321x SoC watchdog"
574	depends on X86_RDC321X
575	help
576	  This is the driver for the built in hardware watchdog
577	  in the RDC R-321x SoC.
578
579	  To compile this driver as a module, choose M here: the
580	  module will be called rdc321x_wdt.
581
582config 60XX_WDT
583	tristate "SBC-60XX Watchdog Timer"
584	depends on X86
585	help
586	  This driver can be used with the watchdog timer found on some
587	  single board computers, namely the 6010 PII based computer.
588	  It may well work with other cards.  It reads port 0x443 to enable
589	  and re-set the watchdog timer, and reads port 0x45 to disable
590	  the watchdog.  If you have a card that behave in similar ways,
591	  you can probably make this driver work with your card as well.
592
593	  You can compile this driver directly into the kernel, or use
594	  it as a module.  The module will be called sbc60xxwdt.
595
596config SBC8360_WDT
597	tristate "SBC8360 Watchdog Timer"
598	depends on X86
599	---help---
600
601	  This is the driver for the hardware watchdog on the SBC8360 Single
602	  Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
603
604	  To compile this driver as a module, choose M here: the
605	  module will be called sbc8360.
606
607	  Most people will say N.
608
609config SBC7240_WDT
610	tristate "SBC Nano 7240 Watchdog Timer"
611	depends on X86_32
612	---help---
613	  This is the driver for the hardware watchdog found on the IEI
614	  single board computers EPIC Nano 7240 (and likely others). This
615	  watchdog simply watches your kernel to make sure it doesn't freeze,
616	  and if it does, it reboots your computer after a certain amount of
617	  time.
618
619	  To compile this driver as a module, choose M here: the
620	  module will be called sbc7240_wdt.
621
622config CPU5_WDT
623	tristate "SMA CPU5 Watchdog"
624	depends on X86
625	---help---
626	  TBD.
627	  To compile this driver as a module, choose M here: the
628	  module will be called cpu5wdt.
629
630config SMSC_SCH311X_WDT
631	tristate "SMSC SCH311X Watchdog Timer"
632	depends on X86
633	---help---
634	  This is the driver for the hardware watchdog timer on the
635	  SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
636	  (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
637	  serial ports).
638
639	  To compile this driver as a module, choose M here: the
640	  module will be called sch311x_wdt.
641
642config SMSC37B787_WDT
643	tristate "Winbond SMsC37B787 Watchdog Timer"
644	depends on X86
645	---help---
646	  This is the driver for the hardware watchdog component on the
647	  Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
648	  from Vision Systems and maybe others.
649
650	  This watchdog simply watches your kernel to make sure it doesn't
651	  freeze, and if it does, it reboots your computer after a certain
652	  amount of time.
653
654	  Usually a userspace daemon will notify the kernel WDT driver that
655	  userspace is still alive, at regular intervals.
656
657	  To compile this driver as a module, choose M here: the
658	  module will be called smsc37b787_wdt.
659
660	  Most people will say N.
661
662config W83627HF_WDT
663	tristate "W83627HF Watchdog Timer"
664	depends on X86
665	---help---
666	  This is the driver for the hardware watchdog on the W83627HF chipset
667	  as used in Advantech PC-9578 and Tyan S2721-533 motherboards
668	  (and likely others).  This watchdog simply watches your kernel to
669	  make sure it doesn't freeze, and if it does, it reboots your computer
670	  after a certain amount of time.
671
672	  To compile this driver as a module, choose M here: the
673	  module will be called w83627hf_wdt.
674
675	  Most people will say N.
676
677config W83697HF_WDT
678	tristate "W83697HF/W83697HG Watchdog Timer"
679	depends on X86
680	---help---
681	  This is the driver for the hardware watchdog on the W83697HF/HG
682	  chipset as used in Dedibox/VIA motherboards (and likely others).
683	  This watchdog simply watches your kernel to make sure it doesn't
684	  freeze, and if it does, it reboots your computer after a certain
685	  amount of time.
686
687	  To compile this driver as a module, choose M here: the
688	  module will be called w83697hf_wdt.
689
690	  Most people will say N.
691
692config W83697UG_WDT
693	tristate "W83697UG/W83697UF Watchdog Timer"
694	depends on X86
695	---help---
696	  This is the driver for the hardware watchdog on the W83697UG/UF
697	  chipset as used in MSI Fuzzy CX700 VIA motherboards (and likely others).
698	  This watchdog simply watches your kernel to make sure it doesn't
699	  freeze, and if it does, it reboots your computer after a certain
700	  amount of time.
701
702	  To compile this driver as a module, choose M here: the
703	  module will be called w83697ug_wdt.
704
705	  Most people will say N.
706
707config W83877F_WDT
708	tristate "W83877F (EMACS) Watchdog Timer"
709	depends on X86
710	---help---
711	  This is the driver for the hardware watchdog on the W83877F chipset
712	  as used in EMACS PC-104 motherboards (and likely others).  This
713	  watchdog simply watches your kernel to make sure it doesn't freeze,
714	  and if it does, it reboots your computer after a certain amount of
715	  time.
716
717	  To compile this driver as a module, choose M here: the
718	  module will be called w83877f_wdt.
719
720	  Most people will say N.
721
722config W83977F_WDT
723	tristate "W83977F (PCM-5335) Watchdog Timer"
724	depends on X86
725	---help---
726	  This is the driver for the hardware watchdog on the W83977F I/O chip
727	  as used in AAEON's PCM-5335 SBC (and likely others).  This
728	  watchdog simply watches your kernel to make sure it doesn't freeze,
729	  and if it does, it reboots your computer after a certain amount of
730	  time.
731
732	  To compile this driver as a module, choose M here: the
733	  module will be called w83977f_wdt.
734
735config MACHZ_WDT
736	tristate "ZF MachZ Watchdog"
737	depends on X86
738	---help---
739	  If you are using a ZF Micro MachZ processor, say Y here, otherwise
740	  N.  This is the driver for the watchdog timer built-in on that
741	  processor using ZF-Logic interface.  This watchdog simply watches
742	  your kernel to make sure it doesn't freeze, and if it does, it
743	  reboots your computer after a certain amount of time.
744
745	  To compile this driver as a module, choose M here: the
746	  module will be called machzwd.
747
748config SBC_EPX_C3_WATCHDOG
749	tristate "Winsystems SBC EPX-C3 watchdog"
750	depends on X86
751	---help---
752	  This is the driver for the built-in watchdog timer on the EPX-C3
753	  Single-board computer made by Winsystems, Inc.
754
755	  *Note*: This hardware watchdog is not probeable and thus there
756	  is no way to know if writing to its IO address will corrupt
757	  your system or have any real effect.  The only way to be sure
758	  that this driver does what you want is to make sure you
759	  are running it on an EPX-C3 from Winsystems with the watchdog
760	  timer at IO address 0x1ee and 0x1ef.  It will write to both those
761	  IO ports.  Basically, the assumption is made that if you compile
762	  this driver into your kernel and/or load it as a module, that you
763	  know what you are doing and that you are in fact running on an
764	  EPX-C3 board!
765
766	  To compile this driver as a module, choose M here: the
767	  module will be called sbc_epx_c3.
768
769# M32R Architecture
770
771# M68K Architecture
772
773# M68KNOMMU Architecture
774
775# MIPS Architecture
776
777config BCM47XX_WDT
778	tristate "Broadcom BCM47xx Watchdog Timer"
779	depends on BCM47XX
780	help
781	  Hardware driver for the Broadcom BCM47xx Watchog Timer.
782
783config RC32434_WDT
784	tristate "IDT RC32434 SoC Watchdog Timer"
785	depends on MIKROTIK_RB532
786	help
787	  Hardware driver for the IDT RC32434 SoC built-in
788	  watchdog timer.
789
790	  To compile this driver as a module, choose M here: the
791	  module will be called rc32434_wdt.
792
793config INDYDOG
794	tristate "Indy/I2 Hardware Watchdog"
795	depends on SGI_HAS_INDYDOG
796	help
797	  Hardware driver for the Indy's/I2's watchdog. This is a
798	  watchdog timer that will reboot the machine after a 60 second
799	  timer expired and no process has written to /dev/watchdog during
800	  that time.
801
802config WDT_MTX1
803	tristate "MTX-1 Hardware Watchdog"
804	depends on MIPS_MTX1
805	help
806	  Hardware driver for the MTX-1 boards. This is a watchdog timer that
807	  will reboot the machine after a 100 seconds timer expired.
808
809config PNX833X_WDT
810	tristate "PNX833x Hardware Watchdog"
811	depends on SOC_PNX8335
812	help
813	  Hardware driver for the PNX833x's watchdog. This is a
814	  watchdog timer that will reboot the machine after a programable
815	  timer has expired and no process has written to /dev/watchdog during
816	  that time.
817
818config WDT_RM9K_GPI
819	tristate "RM9000/GPI hardware watchdog"
820	depends on CPU_RM9000
821	help
822	  Watchdog implementation using the GPI hardware found on
823	  PMC-Sierra RM9xxx CPUs.
824
825	  To compile this driver as a module, choose M here: the
826	  module will be called rm9k_wdt.
827
828config SIBYTE_WDOG
829	tristate "Sibyte SoC hardware watchdog"
830	depends on CPU_SB1
831	help
832	  Watchdog driver for the built in watchdog hardware in Sibyte
833	  SoC processors.  There are apparently two watchdog timers
834	  on such processors; this driver supports only the first one,
835	  because currently Linux only supports exporting one watchdog
836	  to userspace.
837
838	  To compile this driver as a loadable module, choose M here.
839	  The module will be called sb_wdog.
840
841config AR7_WDT
842	tristate "TI AR7 Watchdog Timer"
843	depends on AR7
844	help
845	  Hardware driver for the TI AR7 Watchdog Timer.
846
847config TXX9_WDT
848	tristate "Toshiba TXx9 Watchdog Timer"
849	depends on CPU_TX39XX || CPU_TX49XX
850	help
851	  Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
852
853# PARISC Architecture
854
855# POWERPC Architecture
856
857config GEF_WDT
858	tristate "GE Fanuc Watchdog Timer"
859	depends on GEF_SBC610 || GEF_SBC310 || GEF_PPC9A
860	---help---
861	  Watchdog timer found in a number of GE Fanuc single board computers.
862
863config MPC5200_WDT
864	tristate "MPC5200 Watchdog Timer"
865	depends on PPC_MPC52xx
866
867config 8xxx_WDT
868	tristate "MPC8xxx Platform Watchdog Timer"
869	depends on PPC_8xx || PPC_83xx || PPC_86xx
870	help
871	  This driver is for a SoC level watchdog that exists on some
872	  Freescale PowerPC processors. So far this driver supports:
873	  - MPC8xx watchdogs
874	  - MPC83xx watchdogs
875	  - MPC86xx watchdogs
876
877	  For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
878
879config MV64X60_WDT
880	tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
881	depends on MV64X60
882
883config PIKA_WDT
884	tristate "PIKA FPGA Watchdog"
885	depends on WARP
886	default y
887	help
888	  This enables the watchdog in the PIKA FPGA. Currently used on
889	  the Warp platform.
890
891config BOOKE_WDT
892	bool "PowerPC Book-E Watchdog Timer"
893	depends on BOOKE || 4xx
894	---help---
895	  Please see Documentation/watchdog/watchdog-api.txt for
896	  more information.
897
898# PPC64 Architecture
899
900config WATCHDOG_RTAS
901	tristate "RTAS watchdog"
902	depends on PPC_RTAS
903	help
904	  This driver adds watchdog support for the RTAS watchdog.
905
906	  To compile this driver as a module, choose M here. The module
907	  will be called wdrtas.
908
909# S390 Architecture
910
911config ZVM_WATCHDOG
912	tristate "z/VM Watchdog Timer"
913	depends on S390
914	help
915	  IBM s/390 and zSeries machines running under z/VM 5.1 or later
916	  provide a virtual watchdog timer to their guest that cause a
917	  user define Control Program command to be executed after a
918	  timeout.
919
920	  To compile this driver as a module, choose M here. The module
921	  will be called vmwatchdog.
922
923# SUPERH (sh + sh64) Architecture
924
925config SH_WDT
926	tristate "SuperH Watchdog"
927	depends on SUPERH && (CPU_SH3 || CPU_SH4)
928	help
929	  This driver adds watchdog support for the integrated watchdog in the
930	  SuperH processors. If you have one of these processors and wish
931	  to have watchdog support enabled, say Y, otherwise say N.
932
933	  As a side note, saying Y here will automatically boost HZ to 1000
934	  so that the timer has a chance to clear the overflow counter. On
935	  slower systems (such as the SH-2 and SH-3) this will likely yield
936	  some performance issues. As such, the WDT should be avoided here
937	  unless it is absolutely necessary.
938
939	  To compile this driver as a module, choose M here: the
940	  module will be called shwdt.
941
942config SH_WDT_MMAP
943	bool "Allow mmap of SH WDT"
944	default n
945	depends on SH_WDT
946	help
947	  If you say Y here, user applications will be able to mmap the
948	  WDT/CPG registers.
949
950# SPARC Architecture
951
952# SPARC64 Architecture
953
954config WATCHDOG_CP1XXX
955	tristate "CP1XXX Hardware Watchdog support"
956	depends on SPARC64 && PCI
957	---help---
958	  This is the driver for the hardware watchdog timers present on
959	  Sun Microsystems CompactPCI models CP1400 and CP1500.
960
961	  To compile this driver as a module, choose M here: the
962	  module will be called cpwatchdog.
963
964	  If you do not have a CompactPCI model CP1400 or CP1500, or
965	  another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
966	  you should say N to this option.
967
968config WATCHDOG_RIO
969	tristate "RIO Hardware Watchdog support"
970	depends on SPARC64 && PCI
971	help
972	  Say Y here to support the hardware watchdog capability on Sun RIO
973	  machines.  The watchdog timeout period is normally one minute but
974	  can be changed with a boot-time parameter.
975
976# XTENSA Architecture
977
978#
979# ISA-based Watchdog Cards
980#
981
982comment "ISA-based Watchdog Cards"
983	depends on ISA
984
985config PCWATCHDOG
986	tristate "Berkshire Products ISA-PC Watchdog"
987	depends on ISA
988	---help---
989	  This is the driver for the Berkshire Products ISA-PC Watchdog card.
990	  This card simply watches your kernel to make sure it doesn't freeze,
991	  and if it does, it reboots your computer after a certain amount of
992	  time. This driver is like the WDT501 driver but for different
993	  hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
994	  watchdog cards can be ordered from <http://www.berkprod.com/>.
995
996	  To compile this driver as a module, choose M here: the
997	  module will be called pcwd.
998
999	  Most people will say N.
1000
1001config MIXCOMWD
1002	tristate "Mixcom Watchdog"
1003	depends on ISA
1004	---help---
1005	  This is a driver for the Mixcom hardware watchdog cards.  This
1006	  watchdog simply watches your kernel to make sure it doesn't freeze,
1007	  and if it does, it reboots your computer after a certain amount of
1008	  time.
1009
1010	  To compile this driver as a module, choose M here: the
1011	  module will be called mixcomwd.
1012
1013	  Most people will say N.
1014
1015config WDT
1016	tristate "WDT Watchdog timer"
1017	depends on ISA
1018	---help---
1019	  If you have a WDT500P or WDT501P watchdog board, say Y here,
1020	  otherwise N. It is not possible to probe for this board, which means
1021	  that you have to inform the kernel about the IO port and IRQ that
1022	  is needed (you can do this via the io and irq parameters)
1023
1024	  To compile this driver as a module, choose M here: the
1025	  module will be called wdt.
1026
1027#
1028# PCI-based Watchdog Cards
1029#
1030
1031comment "PCI-based Watchdog Cards"
1032	depends on PCI
1033
1034config PCIPCWATCHDOG
1035	tristate "Berkshire Products PCI-PC Watchdog"
1036	depends on PCI
1037	---help---
1038	  This is the driver for the Berkshire Products PCI-PC Watchdog card.
1039	  This card simply watches your kernel to make sure it doesn't freeze,
1040	  and if it does, it reboots your computer after a certain amount of
1041	  time. The card can also monitor the internal temperature of the PC.
1042	  More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1043
1044	  To compile this driver as a module, choose M here: the
1045	  module will be called pcwd_pci.
1046
1047	  Most people will say N.
1048
1049config WDTPCI
1050	tristate "PCI-WDT500/501 Watchdog timer"
1051	depends on PCI
1052	---help---
1053	  If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1054
1055	  If you have a PCI-WDT501 watchdog board then you can enable the
1056	  temperature sensor by setting the type parameter to 501.
1057
1058	  If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1059	  can do this via the tachometer parameter. Only do this if you have a
1060	  fan tachometer actually set up.
1061
1062	  To compile this driver as a module, choose M here: the
1063	  module will be called wdt_pci.
1064
1065#
1066# USB-based Watchdog Cards
1067#
1068
1069comment "USB-based Watchdog Cards"
1070	depends on USB
1071
1072config USBPCWATCHDOG
1073	tristate "Berkshire Products USB-PC Watchdog"
1074	depends on USB
1075	---help---
1076	  This is the driver for the Berkshire Products USB-PC Watchdog card.
1077	  This card simply watches your kernel to make sure it doesn't freeze,
1078	  and if it does, it reboots your computer after a certain amount of
1079	  time. The card can also monitor the internal temperature of the PC.
1080	  More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1081
1082	  To compile this driver as a module, choose M here: the
1083	  module will be called pcwd_usb.
1084
1085	  Most people will say N.
1086
1087endif # WATCHDOG
1088