xref: /linux/drivers/watchdog/Kconfig (revision 80e45b1e9edbca746618724d5b0a31500bdb6f39)
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 WM8350_WATCHDOG
59	tristate "WM8350 watchdog"
60	depends on MFD_WM8350
61	help
62	  Support for the watchdog in the WM8350 AudioPlus PMIC.  When
63	  the watchdog triggers the system will be reset.
64
65# ALPHA Architecture
66
67# ARM Architecture
68
69config AT91RM9200_WATCHDOG
70	tristate "AT91RM9200 watchdog"
71	depends on ARCH_AT91RM9200
72	help
73	  Watchdog timer embedded into AT91RM9200 chips. This will reboot your
74	  system when the timeout is reached.
75
76config AT91SAM9X_WATCHDOG
77	tristate "AT91SAM9X / AT91CAP9 watchdog"
78	depends on ARCH_AT91 && !ARCH_AT91RM9200
79	help
80	  Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
81	  reboot your system when the timeout is reached.
82
83config 21285_WATCHDOG
84	tristate "DC21285 watchdog"
85	depends on FOOTBRIDGE
86	help
87	  The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
88	  here if you wish to use this. Alternatively say M to compile the
89	  driver as a module, which will be called wdt285.
90
91	  This driver does not work on all machines. In particular, early CATS
92	  boards have hardware problems that will cause the machine to simply
93	  lock up if the watchdog fires.
94
95	  "If in doubt, leave it out" - say N.
96
97config 977_WATCHDOG
98	tristate "NetWinder WB83C977 watchdog"
99	depends on FOOTBRIDGE && ARCH_NETWINDER
100	help
101	  Say Y here to include support for the WB977 watchdog included in
102	  NetWinder machines. Alternatively say M to compile the driver as
103	  a module, which will be called wdt977.
104
105	  Not sure? It's safe to say N.
106
107config IXP2000_WATCHDOG
108	tristate "IXP2000 Watchdog"
109	depends on ARCH_IXP2000
110	help
111	  Say Y here if to include support for the watchdog timer
112	  in the Intel IXP2000(2400, 2800, 2850) network processors.
113	  This driver can be built as a module by choosing M. The module
114	  will be called ixp2000_wdt.
115
116	  Say N if you are unsure.
117
118config IXP4XX_WATCHDOG
119	tristate "IXP4xx Watchdog"
120	depends on ARCH_IXP4XX
121	help
122	  Say Y here if to include support for the watchdog timer
123	  in the Intel IXP4xx network processors. This driver can
124	  be built as a module by choosing M. The module will
125	  be called ixp4xx_wdt.
126
127	  Note: The internal IXP4xx watchdog does a soft CPU reset
128	  which doesn't reset any peripherals. There are circumstances
129	  where the watchdog will fail to reset the board correctly
130	  (e.g., if the boot ROM is in an unreadable state).
131
132	  Say N if you are unsure.
133
134config KS8695_WATCHDOG
135	tristate "KS8695 watchdog"
136	depends on ARCH_KS8695
137	help
138	  Watchdog timer embedded into KS8695 processor. This will reboot your
139	  system when the timeout is reached.
140
141config S3C2410_WATCHDOG
142	tristate "S3C2410 Watchdog"
143	depends on ARCH_S3C2410
144	help
145	  Watchdog timer block in the Samsung S3C2410 chips. This will
146	  reboot the system when the timer expires with the watchdog
147	  enabled.
148
149	  The driver is limited by the speed of the system's PCLK
150	  signal, so with reasonably fast systems (PCLK around 50-66MHz)
151	  then watchdog intervals of over approximately 20seconds are
152	  unavailable.
153
154	  The driver can be built as a module by choosing M, and will
155	  be called s3c2410_wdt
156
157config SA1100_WATCHDOG
158	tristate "SA1100/PXA2xx watchdog"
159	depends on ARCH_SA1100 || ARCH_PXA
160	help
161	  Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
162	  reboot your system when timeout is reached.
163
164	  NOTE: once enabled, this timer cannot be disabled.
165
166	  To compile this driver as a module, choose M here: the
167	  module will be called sa1100_wdt.
168
169config MPCORE_WATCHDOG
170	tristate "MPcore watchdog"
171	depends on ARM_MPCORE_PLATFORM && LOCAL_TIMERS
172	help
173	  Watchdog timer embedded into the MPcore system.
174
175	  To compile this driver as a module, choose M here: the
176	  module will be called mpcore_wdt.
177
178config EP93XX_WATCHDOG
179	tristate "EP93xx Watchdog"
180	depends on ARCH_EP93XX
181	help
182	  Say Y here if to include support for the watchdog timer
183	  embedded in the Cirrus Logic EP93xx family of devices.
184
185	  To compile this driver as a module, choose M here: the
186	  module will be called ep93xx_wdt.
187
188config OMAP_WATCHDOG
189	tristate "OMAP Watchdog"
190	depends on ARCH_OMAP16XX || ARCH_OMAP24XX || ARCH_OMAP34XX
191	help
192	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430 watchdog.  Say 'Y'
193	  here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430 watchdog timer.
194
195config PNX4008_WATCHDOG
196	tristate "PNX4008 Watchdog"
197	depends on ARCH_PNX4008
198	help
199	  Say Y here if to include support for the watchdog timer
200	  in the PNX4008 processor.
201	  This driver can be built as a module by choosing M. The module
202	  will be called pnx4008_wdt.
203
204	  Say N if you are unsure.
205
206config IOP_WATCHDOG
207	tristate "IOP Watchdog"
208	depends on PLAT_IOP
209	select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
210	help
211	  Say Y here if to include support for the watchdog timer
212	  in the Intel IOP3XX & IOP13XX I/O Processors.  This driver can
213	  be built as a module by choosing M. The module will
214	  be called iop_wdt.
215
216	  Note: The IOP13XX watchdog does an Internal Bus Reset which will
217	  affect both cores and the peripherals of the IOP.  The ATU-X
218	  and/or ATUe configuration registers will remain intact, but if
219	  operating as an Root Complex and/or Central Resource, the PCI-X
220	  and/or PCIe busses will also be reset.  THIS IS A VERY BIG HAMMER.
221
222config DAVINCI_WATCHDOG
223	tristate "DaVinci watchdog"
224	depends on ARCH_DAVINCI
225	help
226	  Say Y here if to include support for the watchdog timer
227	  in the DaVinci DM644x/DM646x processors.
228	  To compile this driver as a module, choose M here: the
229	  module will be called davinci_wdt.
230
231	  NOTE: once enabled, this timer cannot be disabled.
232	  Say N if you are unsure.
233
234config ORION_WATCHDOG
235	tristate "Orion watchdog"
236	depends on ARCH_ORION5X || ARCH_KIRKWOOD
237	help
238	  Say Y here if to include support for the watchdog timer
239	  in the Marvell Orion5x and Kirkwood ARM SoCs.
240	  To compile this driver as a module, choose M here: the
241	  module will be called orion_wdt.
242
243config COH901327_WATCHDOG
244	bool "ST-Ericsson COH 901 327 watchdog"
245	depends on ARCH_U300
246	default y if MACH_U300
247	help
248	  Say Y here to include Watchdog timer support for the
249	  watchdog embedded into the ST-Ericsson U300 series platforms.
250	  This watchdog is used to reset the system and thus cannot be
251	  compiled as a module.
252
253config TWL4030_WATCHDOG
254	tristate "TWL4030 Watchdog"
255	depends on TWL4030_CORE
256	help
257	  Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
258	  watchdog timer support for TWL4030 chips.
259
260# AVR32 Architecture
261
262config AT32AP700X_WDT
263	tristate "AT32AP700x watchdog"
264	depends on CPU_AT32AP700X
265	help
266	  Watchdog timer embedded into AT32AP700x devices. This will reboot
267	  your system when the timeout is reached.
268
269# BLACKFIN Architecture
270
271config BFIN_WDT
272	tristate "Blackfin On-Chip Watchdog Timer"
273	depends on BLACKFIN
274	---help---
275	  If you say yes here you will get support for the Blackfin On-Chip
276	  Watchdog Timer. If you have one of these processors and wish to
277	  have watchdog support enabled, say Y, otherwise say N.
278
279	  To compile this driver as a module, choose M here: the
280	  module will be called bfin_wdt.
281
282# CRIS Architecture
283
284# FRV Architecture
285
286# H8300 Architecture
287
288# X86 (i386 + ia64 + x86_64) Architecture
289
290config ACQUIRE_WDT
291	tristate "Acquire SBC Watchdog Timer"
292	depends on X86
293	---help---
294	  This is the driver for the hardware watchdog on Single Board
295	  Computers produced by Acquire Inc (and others). This watchdog
296	  simply watches your kernel to make sure it doesn't freeze, and if
297	  it does, it reboots your computer after a certain amount of time.
298
299	  To compile this driver as a module, choose M here: the
300	  module will be called acquirewdt.
301
302	  Most people will say N.
303
304config ADVANTECH_WDT
305	tristate "Advantech SBC Watchdog Timer"
306	depends on X86
307	help
308	  If you are configuring a Linux kernel for the Advantech single-board
309	  computer, say `Y' here to support its built-in watchdog timer
310	  feature. More information can be found at
311	  <http://www.advantech.com.tw/products/>
312
313config ALIM1535_WDT
314	tristate "ALi M1535 PMU Watchdog Timer"
315	depends on X86 && PCI
316	---help---
317	  This is the driver for the hardware watchdog on the ALi M1535 PMU.
318
319	  To compile this driver as a module, choose M here: the
320	  module will be called alim1535_wdt.
321
322	  Most people will say N.
323
324config ALIM7101_WDT
325	tristate "ALi M7101 PMU Computer Watchdog"
326	depends on PCI
327	help
328	  This is the driver for the hardware watchdog on the ALi M7101 PMU
329	  as used in the x86 Cobalt servers and also found in some
330	  SPARC Netra servers too.
331
332	  To compile this driver as a module, choose M here: the
333	  module will be called alim7101_wdt.
334
335	  Most people will say N.
336
337config GEODE_WDT
338	tristate "AMD Geode CS5535/CS5536 Watchdog"
339	depends on MGEODE_LX
340	help
341	  This driver enables a watchdog capability built into the
342	  CS5535/CS5536 companion chips for the AMD Geode GX and LX
343	  processors.  This watchdog watches your kernel to make sure
344	  it doesn't freeze, and if it does, it reboots your computer after
345	  a certain amount of time.
346
347	  You can compile this driver directly into the kernel, or use
348	  it as a module.  The module will be called geodewdt.
349
350config SC520_WDT
351	tristate "AMD Elan SC520 processor Watchdog"
352	depends on X86
353	help
354	  This is the driver for the hardware watchdog built in to the
355	  AMD "Elan" SC520 microcomputer commonly used in embedded systems.
356	  This watchdog simply watches your kernel to make sure it doesn't
357	  freeze, and if it does, it reboots your computer after a certain
358	  amount of time.
359
360	  You can compile this driver directly into the kernel, or use
361	  it as a module.  The module will be called sc520_wdt.
362
363config EUROTECH_WDT
364	tristate "Eurotech CPU-1220/1410 Watchdog Timer"
365	depends on X86
366	help
367	  Enable support for the watchdog timer on the Eurotech CPU-1220 and
368	  CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
369	  information are at <http://www.eurotech.it/>.
370
371config IB700_WDT
372	tristate "IB700 SBC Watchdog Timer"
373	depends on X86
374	---help---
375	  This is the driver for the hardware watchdog on the IB700 Single
376	  Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
377	  simply watches your kernel to make sure it doesn't freeze, and if
378	  it does, it reboots your computer after a certain amount of time.
379
380	  This driver is like the WDT501 driver but for slightly different hardware.
381
382	  To compile this driver as a module, choose M here: the
383	  module will be called ib700wdt.
384
385	  Most people will say N.
386
387config IBMASR
388	tristate "IBM Automatic Server Restart"
389	depends on X86
390	help
391	  This is the driver for the IBM Automatic Server Restart watchdog
392	  timer built-in into some eServer xSeries machines.
393
394	  To compile this driver as a module, choose M here: the
395	  module will be called ibmasr.
396
397config WAFER_WDT
398	tristate "ICP Single Board Computer Watchdog Timer"
399	depends on X86
400	help
401	  This is a driver for the hardware watchdog on the ICP Single
402	  Board Computer. This driver is working on (at least) the following
403	  IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
404
405	  To compile this driver as a module, choose M here: the
406	  module will be called wafer5823wdt.
407
408config I6300ESB_WDT
409	tristate "Intel 6300ESB Timer/Watchdog"
410	depends on X86 && PCI
411	---help---
412	  Hardware driver for the watchdog timer built into the Intel
413	  6300ESB controller hub.
414
415	  To compile this driver as a module, choose M here: the
416	  module will be called i6300esb.
417
418config ITCO_WDT
419	tristate "Intel TCO Timer/Watchdog"
420	depends on (X86 || IA64) && PCI
421	---help---
422	  Hardware driver for the intel TCO timer based watchdog devices.
423	  These drivers are included in the Intel 82801 I/O Controller
424	  Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
425	  controller hub.
426
427	  The TCO (Total Cost of Ownership) timer is a watchdog timer
428	  that will reboot the machine after its second expiration. The
429	  expiration time can be configured with the "heartbeat" parameter.
430
431	  On some motherboards the driver may fail to reset the chipset's
432	  NO_REBOOT flag which prevents the watchdog from rebooting the
433	  machine. If this is the case you will get a kernel message like
434	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
435
436	  To compile this driver as a module, choose M here: the
437	  module will be called iTCO_wdt.
438
439config ITCO_VENDOR_SUPPORT
440	bool "Intel TCO Timer/Watchdog Specific Vendor Support"
441	depends on ITCO_WDT
442	---help---
443	  Add vendor specific support to the intel TCO timer based watchdog
444	  devices. At this moment we only have additional support for some
445	  SuperMicro Inc. motherboards.
446
447config IT8712F_WDT
448	tristate "IT8712F (Smart Guardian) Watchdog Timer"
449	depends on X86
450	---help---
451	  This is the driver for the built-in watchdog timer on the IT8712F
452	  Super I/0 chipset used on many motherboards.
453
454	  To compile this driver as a module, choose M here: the
455	  module will be called it8712f_wdt.
456
457config IT87_WDT
458	tristate "IT87 Watchdog Timer"
459	depends on X86 && EXPERIMENTAL
460	---help---
461	  This is the driver for the hardware watchdog on the ITE IT8716,
462	  IT8718, IT8726, IT8712(Version J,K) Super I/O chips. This watchdog
463	  simply watches your kernel to make sure it doesn't freeze, and if
464	  it does, it reboots your computer after a certain amount of time.
465
466	  To compile this driver as a module, choose M here: the module will
467	  be called it87_wdt.
468
469config HP_WATCHDOG
470	tristate "HP Proliant iLO 2 Hardware Watchdog Timer"
471	depends on X86
472	help
473	  A software monitoring watchdog and NMI sourcing driver. This driver
474	  will detect lockups and provide stack trace. Also, when an NMI
475	  occurs this driver will make the necessary BIOS calls to log
476	  the cause of the NMI. This is a driver that will only load on a
477	  HP ProLiant system with a minimum of iLO2 support.
478	  To compile this driver as a module, choose M here: the
479	  module will be called hpwdt.
480
481config SC1200_WDT
482	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
483	depends on X86
484	help
485	  This is a driver for National Semiconductor PC87307/PC97307 hardware
486	  watchdog cards as found on the SC1200. This watchdog is mainly used
487	  for power management purposes and can be used to power down the device
488	  during inactivity periods (includes interrupt activity monitoring).
489
490	  To compile this driver as a module, choose M here: the
491	  module will be called sc1200wdt.
492
493	  Most people will say N.
494
495config SCx200_WDT
496	tristate "National Semiconductor SCx200 Watchdog"
497	depends on SCx200 && PCI
498	help
499	  Enable the built-in watchdog timer support on the National
500	  Semiconductor SCx200 processors.
501
502	  If compiled as a module, it will be called scx200_wdt.
503
504config PC87413_WDT
505	tristate "NS PC87413 watchdog"
506	depends on X86
507	---help---
508	  This is the driver for the hardware watchdog on the PC87413 chipset
509	  This watchdog simply watches your kernel to make sure it doesn't
510	  freeze, and if it does, it reboots your computer after a certain
511	  amount of time.
512
513	  To compile this driver as a module, choose M here: the
514	  module will be called pc87413_wdt.
515
516	  Most people will say N.
517
518config RDC321X_WDT
519	tristate "RDC R-321x SoC watchdog"
520	depends on X86_RDC321X
521	help
522	  This is the driver for the built in hardware watchdog
523	  in the RDC R-321x SoC.
524
525	  To compile this driver as a module, choose M here: the
526	  module will be called rdc321x_wdt.
527
528config 60XX_WDT
529	tristate "SBC-60XX Watchdog Timer"
530	depends on X86
531	help
532	  This driver can be used with the watchdog timer found on some
533	  single board computers, namely the 6010 PII based computer.
534	  It may well work with other cards.  It reads port 0x443 to enable
535	  and re-set the watchdog timer, and reads port 0x45 to disable
536	  the watchdog.  If you have a card that behave in similar ways,
537	  you can probably make this driver work with your card as well.
538
539	  You can compile this driver directly into the kernel, or use
540	  it as a module.  The module will be called sbc60xxwdt.
541
542config SBC8360_WDT
543	tristate "SBC8360 Watchdog Timer"
544	depends on X86
545	---help---
546
547	  This is the driver for the hardware watchdog on the SBC8360 Single
548	  Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
549
550	  To compile this driver as a module, choose M here: the
551	  module will be called sbc8360.
552
553	  Most people will say N.
554
555config SBC7240_WDT
556	tristate "SBC Nano 7240 Watchdog Timer"
557	depends on X86_32
558	---help---
559	  This is the driver for the hardware watchdog found on the IEI
560	  single board computers EPIC Nano 7240 (and likely others). This
561	  watchdog simply watches your kernel to make sure it doesn't freeze,
562	  and if it does, it reboots your computer after a certain amount of
563	  time.
564
565	  To compile this driver as a module, choose M here: the
566	  module will be called sbc7240_wdt.
567
568config CPU5_WDT
569	tristate "SMA CPU5 Watchdog"
570	depends on X86
571	---help---
572	  TBD.
573	  To compile this driver as a module, choose M here: the
574	  module will be called cpu5wdt.
575
576config SMSC_SCH311X_WDT
577	tristate "SMSC SCH311X Watchdog Timer"
578	depends on X86
579	---help---
580	  This is the driver for the hardware watchdog timer on the
581	  SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
582	  (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
583	  serial ports).
584
585	  To compile this driver as a module, choose M here: the
586	  module will be called sch311x_wdt.
587
588config SMSC37B787_WDT
589	tristate "Winbond SMsC37B787 Watchdog Timer"
590	depends on X86
591	---help---
592	  This is the driver for the hardware watchdog component on the
593	  Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
594	  from Vision Systems and maybe others.
595
596	  This watchdog simply watches your kernel to make sure it doesn't
597	  freeze, and if it does, it reboots your computer after a certain
598	  amount of time.
599
600	  Usually a userspace daemon will notify the kernel WDT driver that
601	  userspace is still alive, at regular intervals.
602
603	  To compile this driver as a module, choose M here: the
604	  module will be called smsc37b787_wdt.
605
606	  Most people will say N.
607
608config W83627HF_WDT
609	tristate "W83627HF Watchdog Timer"
610	depends on X86
611	---help---
612	  This is the driver for the hardware watchdog on the W83627HF chipset
613	  as used in Advantech PC-9578 and Tyan S2721-533 motherboards
614	  (and likely others).  This watchdog simply watches your kernel to
615	  make sure it doesn't freeze, and if it does, it reboots your computer
616	  after a certain amount of time.
617
618	  To compile this driver as a module, choose M here: the
619	  module will be called w83627hf_wdt.
620
621	  Most people will say N.
622
623config W83697HF_WDT
624	tristate "W83697HF/W83697HG Watchdog Timer"
625	depends on X86
626	---help---
627	  This is the driver for the hardware watchdog on the W83697HF/HG
628	  chipset as used in Dedibox/VIA motherboards (and likely others).
629	  This watchdog simply watches your kernel to make sure it doesn't
630	  freeze, and if it does, it reboots your computer after a certain
631	  amount of time.
632
633	  To compile this driver as a module, choose M here: the
634	  module will be called w83697hf_wdt.
635
636	  Most people will say N.
637
638config W83697UG_WDT
639	tristate "W83697UG/W83697UF Watchdog Timer"
640	depends on X86
641	---help---
642	  This is the driver for the hardware watchdog on the W83697UG/UF
643	  chipset as used in MSI Fuzzy CX700 VIA motherboards (and likely others).
644	  This watchdog simply watches your kernel to make sure it doesn't
645	  freeze, and if it does, it reboots your computer after a certain
646	  amount of time.
647
648	  To compile this driver as a module, choose M here: the
649	  module will be called w83697ug_wdt.
650
651	  Most people will say N.
652
653config W83877F_WDT
654	tristate "W83877F (EMACS) Watchdog Timer"
655	depends on X86
656	---help---
657	  This is the driver for the hardware watchdog on the W83877F chipset
658	  as used in EMACS PC-104 motherboards (and likely others).  This
659	  watchdog simply watches your kernel to make sure it doesn't freeze,
660	  and if it does, it reboots your computer after a certain amount of
661	  time.
662
663	  To compile this driver as a module, choose M here: the
664	  module will be called w83877f_wdt.
665
666	  Most people will say N.
667
668config W83977F_WDT
669	tristate "W83977F (PCM-5335) Watchdog Timer"
670	depends on X86
671	---help---
672	  This is the driver for the hardware watchdog on the W83977F I/O chip
673	  as used in AAEON's PCM-5335 SBC (and likely others).  This
674	  watchdog simply watches your kernel to make sure it doesn't freeze,
675	  and if it does, it reboots your computer after a certain amount of
676	  time.
677
678	  To compile this driver as a module, choose M here: the
679	  module will be called w83977f_wdt.
680
681config MACHZ_WDT
682	tristate "ZF MachZ Watchdog"
683	depends on X86
684	---help---
685	  If you are using a ZF Micro MachZ processor, say Y here, otherwise
686	  N.  This is the driver for the watchdog timer built-in on that
687	  processor using ZF-Logic interface.  This watchdog simply watches
688	  your kernel to make sure it doesn't freeze, and if it does, it
689	  reboots your computer after a certain amount of time.
690
691	  To compile this driver as a module, choose M here: the
692	  module will be called machzwd.
693
694config SBC_EPX_C3_WATCHDOG
695	tristate "Winsystems SBC EPX-C3 watchdog"
696	depends on X86
697	---help---
698	  This is the driver for the built-in watchdog timer on the EPX-C3
699	  Single-board computer made by Winsystems, Inc.
700
701	  *Note*: This hardware watchdog is not probeable and thus there
702	  is no way to know if writing to its IO address will corrupt
703	  your system or have any real effect.  The only way to be sure
704	  that this driver does what you want is to make sure you
705	  are running it on an EPX-C3 from Winsystems with the watchdog
706	  timer at IO address 0x1ee and 0x1ef.  It will write to both those
707	  IO ports.  Basically, the assumption is made that if you compile
708	  this driver into your kernel and/or load it as a module, that you
709	  know what you are doing and that you are in fact running on an
710	  EPX-C3 board!
711
712	  To compile this driver as a module, choose M here: the
713	  module will be called sbc_epx_c3.
714
715# M32R Architecture
716
717# M68K Architecture
718
719# M68KNOMMU Architecture
720
721# MIPS Architecture
722
723config RC32434_WDT
724	tristate "IDT RC32434 SoC Watchdog Timer"
725	depends on MIKROTIK_RB532
726	help
727	  Hardware driver for the IDT RC32434 SoC built-in
728	  watchdog timer.
729
730	  To compile this driver as a module, choose M here: the
731	  module will be called rc32434_wdt.
732
733config INDYDOG
734	tristate "Indy/I2 Hardware Watchdog"
735	depends on SGI_HAS_INDYDOG
736	help
737	  Hardware driver for the Indy's/I2's watchdog. This is a
738	  watchdog timer that will reboot the machine after a 60 second
739	  timer expired and no process has written to /dev/watchdog during
740	  that time.
741
742config WDT_MTX1
743	tristate "MTX-1 Hardware Watchdog"
744	depends on MIPS_MTX1
745	help
746	  Hardware driver for the MTX-1 boards. This is a watchdog timer that
747	  will reboot the machine after a 100 seconds timer expired.
748
749config PNX833X_WDT
750	tristate "PNX833x Hardware Watchdog"
751	depends on SOC_PNX8335
752	help
753	  Hardware driver for the PNX833x's watchdog. This is a
754	  watchdog timer that will reboot the machine after a programable
755	  timer has expired and no process has written to /dev/watchdog during
756	  that time.
757
758config WDT_RM9K_GPI
759	tristate "RM9000/GPI hardware watchdog"
760	depends on CPU_RM9000
761	help
762	  Watchdog implementation using the GPI hardware found on
763	  PMC-Sierra RM9xxx CPUs.
764
765	  To compile this driver as a module, choose M here: the
766	  module will be called rm9k_wdt.
767
768config SIBYTE_WDOG
769	tristate "Sibyte SoC hardware watchdog"
770	depends on CPU_SB1
771	help
772	  Watchdog driver for the built in watchdog hardware in Sibyte
773	  SoC processors.  There are apparently two watchdog timers
774	  on such processors; this driver supports only the first one,
775	  because currently Linux only supports exporting one watchdog
776	  to userspace.
777
778	  To compile this driver as a loadable module, choose M here.
779	  The module will be called sb_wdog.
780
781config AR7_WDT
782	tristate "TI AR7 Watchdog Timer"
783	depends on AR7
784	help
785	  Hardware driver for the TI AR7 Watchdog Timer.
786
787config TXX9_WDT
788	tristate "Toshiba TXx9 Watchdog Timer"
789	depends on CPU_TX39XX || CPU_TX49XX
790	help
791	  Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
792
793# PARISC Architecture
794
795# POWERPC Architecture
796
797config GEF_WDT
798	tristate "GE Fanuc Watchdog Timer"
799	depends on GEF_SBC610 || GEF_SBC310 || GEF_PPC9A
800	---help---
801	  Watchdog timer found in a number of GE Fanuc single board computers.
802
803config MPC5200_WDT
804	tristate "MPC5200 Watchdog Timer"
805	depends on PPC_MPC52xx
806
807config 8xxx_WDT
808	tristate "MPC8xxx Platform Watchdog Timer"
809	depends on PPC_8xx || PPC_83xx || PPC_86xx
810	help
811	  This driver is for a SoC level watchdog that exists on some
812	  Freescale PowerPC processors. So far this driver supports:
813	  - MPC8xx watchdogs
814	  - MPC83xx watchdogs
815	  - MPC86xx watchdogs
816
817	  For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
818
819config MV64X60_WDT
820	tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
821	depends on MV64X60
822
823config PIKA_WDT
824	tristate "PIKA FPGA Watchdog"
825	depends on WARP
826	default y
827	help
828	  This enables the watchdog in the PIKA FPGA. Currently used on
829	  the Warp platform.
830
831config BOOKE_WDT
832	bool "PowerPC Book-E Watchdog Timer"
833	depends on BOOKE || 4xx
834	---help---
835	  Please see Documentation/watchdog/watchdog-api.txt for
836	  more information.
837
838# PPC64 Architecture
839
840config WATCHDOG_RTAS
841	tristate "RTAS watchdog"
842	depends on PPC_RTAS
843	help
844	  This driver adds watchdog support for the RTAS watchdog.
845
846	  To compile this driver as a module, choose M here. The module
847	  will be called wdrtas.
848
849# S390 Architecture
850
851config ZVM_WATCHDOG
852	tristate "z/VM Watchdog Timer"
853	depends on S390
854	help
855	  IBM s/390 and zSeries machines running under z/VM 5.1 or later
856	  provide a virtual watchdog timer to their guest that cause a
857	  user define Control Program command to be executed after a
858	  timeout.
859
860	  To compile this driver as a module, choose M here. The module
861	  will be called vmwatchdog.
862
863# SUPERH (sh + sh64) Architecture
864
865config SH_WDT
866	tristate "SuperH Watchdog"
867	depends on SUPERH && (CPU_SH3 || CPU_SH4)
868	help
869	  This driver adds watchdog support for the integrated watchdog in the
870	  SuperH processors. If you have one of these processors and wish
871	  to have watchdog support enabled, say Y, otherwise say N.
872
873	  As a side note, saying Y here will automatically boost HZ to 1000
874	  so that the timer has a chance to clear the overflow counter. On
875	  slower systems (such as the SH-2 and SH-3) this will likely yield
876	  some performance issues. As such, the WDT should be avoided here
877	  unless it is absolutely necessary.
878
879	  To compile this driver as a module, choose M here: the
880	  module will be called shwdt.
881
882config SH_WDT_MMAP
883	bool "Allow mmap of SH WDT"
884	default n
885	depends on SH_WDT
886	help
887	  If you say Y here, user applications will be able to mmap the
888	  WDT/CPG registers.
889
890# SPARC Architecture
891
892# SPARC64 Architecture
893
894config WATCHDOG_CP1XXX
895	tristate "CP1XXX Hardware Watchdog support"
896	depends on SPARC64 && PCI
897	---help---
898	  This is the driver for the hardware watchdog timers present on
899	  Sun Microsystems CompactPCI models CP1400 and CP1500.
900
901	  To compile this driver as a module, choose M here: the
902	  module will be called cpwatchdog.
903
904	  If you do not have a CompactPCI model CP1400 or CP1500, or
905	  another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
906	  you should say N to this option.
907
908config WATCHDOG_RIO
909	tristate "RIO Hardware Watchdog support"
910	depends on SPARC64 && PCI
911	help
912	  Say Y here to support the hardware watchdog capability on Sun RIO
913	  machines.  The watchdog timeout period is normally one minute but
914	  can be changed with a boot-time parameter.
915
916# XTENSA Architecture
917
918#
919# ISA-based Watchdog Cards
920#
921
922comment "ISA-based Watchdog Cards"
923	depends on ISA
924
925config PCWATCHDOG
926	tristate "Berkshire Products ISA-PC Watchdog"
927	depends on ISA
928	---help---
929	  This is the driver for the Berkshire Products ISA-PC Watchdog card.
930	  This card simply watches your kernel to make sure it doesn't freeze,
931	  and if it does, it reboots your computer after a certain amount of
932	  time. This driver is like the WDT501 driver but for different
933	  hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
934	  watchdog cards can be ordered from <http://www.berkprod.com/>.
935
936	  To compile this driver as a module, choose M here: the
937	  module will be called pcwd.
938
939	  Most people will say N.
940
941config MIXCOMWD
942	tristate "Mixcom Watchdog"
943	depends on ISA
944	---help---
945	  This is a driver for the Mixcom hardware watchdog cards.  This
946	  watchdog simply watches your kernel to make sure it doesn't freeze,
947	  and if it does, it reboots your computer after a certain amount of
948	  time.
949
950	  To compile this driver as a module, choose M here: the
951	  module will be called mixcomwd.
952
953	  Most people will say N.
954
955config WDT
956	tristate "WDT Watchdog timer"
957	depends on ISA
958	---help---
959	  If you have a WDT500P or WDT501P watchdog board, say Y here,
960	  otherwise N. It is not possible to probe for this board, which means
961	  that you have to inform the kernel about the IO port and IRQ that
962	  is needed (you can do this via the io and irq parameters)
963
964	  To compile this driver as a module, choose M here: the
965	  module will be called wdt.
966
967#
968# PCI-based Watchdog Cards
969#
970
971comment "PCI-based Watchdog Cards"
972	depends on PCI
973
974config PCIPCWATCHDOG
975	tristate "Berkshire Products PCI-PC Watchdog"
976	depends on PCI
977	---help---
978	  This is the driver for the Berkshire Products PCI-PC Watchdog card.
979	  This card simply watches your kernel to make sure it doesn't freeze,
980	  and if it does, it reboots your computer after a certain amount of
981	  time. The card can also monitor the internal temperature of the PC.
982	  More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
983
984	  To compile this driver as a module, choose M here: the
985	  module will be called pcwd_pci.
986
987	  Most people will say N.
988
989config WDTPCI
990	tristate "PCI-WDT500/501 Watchdog timer"
991	depends on PCI
992	---help---
993	  If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
994
995	  To compile this driver as a module, choose M here: the
996	  module will be called wdt_pci.
997
998config WDT_501_PCI
999	bool "PCI-WDT501 features"
1000	depends on WDTPCI
1001	help
1002	  Saying Y here and creating a character special file /dev/temperature
1003	  with major number 10 and minor number 131 ("man mknod") will give
1004	  you a thermometer inside your computer: reading from
1005	  /dev/temperature yields one byte, the temperature in degrees
1006	  Fahrenheit. This works only if you have a PCI-WDT501 watchdog board
1007	  installed.
1008
1009	  If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1010	  can do this via the tachometer parameter. Only do this if you have a
1011	  fan tachometer actually set up.
1012
1013#
1014# USB-based Watchdog Cards
1015#
1016
1017comment "USB-based Watchdog Cards"
1018	depends on USB
1019
1020config USBPCWATCHDOG
1021	tristate "Berkshire Products USB-PC Watchdog"
1022	depends on USB
1023	---help---
1024	  This is the driver for the Berkshire Products USB-PC Watchdog card.
1025	  This card simply watches your kernel to make sure it doesn't freeze,
1026	  and if it does, it reboots your computer after a certain amount of
1027	  time. The card can also monitor the internal temperature of the PC.
1028	  More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1029
1030	  To compile this driver as a module, choose M here: the
1031	  module will be called pcwd_usb.
1032
1033	  Most people will say N.
1034
1035endif # WATCHDOG
1036