xref: /linux/drivers/watchdog/Kconfig (revision f865c35224bb310a1b464062ae1e946d261708e3)
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 ARM_SP805_WATCHDOG
77	tristate "ARM SP805 Watchdog"
78	depends on ARM_AMBA
79	help
80	  ARM Primecell SP805 Watchdog timer. This will reboot your system when
81	  the timeout is reached.
82
83config AT91RM9200_WATCHDOG
84	tristate "AT91RM9200 watchdog"
85	depends on ARCH_AT91RM9200
86	help
87	  Watchdog timer embedded into AT91RM9200 chips. This will reboot your
88	  system when the timeout is reached.
89
90config AT91SAM9X_WATCHDOG
91	tristate "AT91SAM9X / AT91CAP9 watchdog"
92	depends on ARCH_AT91 && !ARCH_AT91RM9200
93	help
94	  Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
95	  reboot your system when the timeout is reached.
96
97config 21285_WATCHDOG
98	tristate "DC21285 watchdog"
99	depends on FOOTBRIDGE
100	help
101	  The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
102	  here if you wish to use this. Alternatively say M to compile the
103	  driver as a module, which will be called wdt285.
104
105	  This driver does not work on all machines. In particular, early CATS
106	  boards have hardware problems that will cause the machine to simply
107	  lock up if the watchdog fires.
108
109	  "If in doubt, leave it out" - say N.
110
111config 977_WATCHDOG
112	tristate "NetWinder WB83C977 watchdog"
113	depends on FOOTBRIDGE && ARCH_NETWINDER
114	help
115	  Say Y here to include support for the WB977 watchdog included in
116	  NetWinder machines. Alternatively say M to compile the driver as
117	  a module, which will be called wdt977.
118
119	  Not sure? It's safe to say N.
120
121config IXP2000_WATCHDOG
122	tristate "IXP2000 Watchdog"
123	depends on ARCH_IXP2000
124	help
125	  Say Y here if to include support for the watchdog timer
126	  in the Intel IXP2000(2400, 2800, 2850) network processors.
127	  This driver can be built as a module by choosing M. The module
128	  will be called ixp2000_wdt.
129
130	  Say N if you are unsure.
131
132config IXP4XX_WATCHDOG
133	tristate "IXP4xx Watchdog"
134	depends on ARCH_IXP4XX
135	help
136	  Say Y here if to include support for the watchdog timer
137	  in the Intel IXP4xx network processors. This driver can
138	  be built as a module by choosing M. The module will
139	  be called ixp4xx_wdt.
140
141	  Note: The internal IXP4xx watchdog does a soft CPU reset
142	  which doesn't reset any peripherals. There are circumstances
143	  where the watchdog will fail to reset the board correctly
144	  (e.g., if the boot ROM is in an unreadable state).
145
146	  Say N if you are unsure.
147
148config KS8695_WATCHDOG
149	tristate "KS8695 watchdog"
150	depends on ARCH_KS8695
151	help
152	  Watchdog timer embedded into KS8695 processor. This will reboot your
153	  system when the timeout is reached.
154
155config HAVE_S3C2410_WATCHDOG
156	bool
157	help
158	  This will include watchdog timer support for Samsung SoCs. If
159	  you want to include watchdog support for any machine, kindly
160	  select this in the respective mach-XXXX/Kconfig file.
161
162config S3C2410_WATCHDOG
163	tristate "S3C2410 Watchdog"
164	depends on ARCH_S3C2410 || HAVE_S3C2410_WATCHDOG
165	help
166	  Watchdog timer block in the Samsung SoCs. This will reboot
167	  the system when the timer expires with the watchdog enabled.
168
169	  The driver is limited by the speed of the system's PCLK
170	  signal, so with reasonably fast systems (PCLK around 50-66MHz)
171	  then watchdog intervals of over approximately 20seconds are
172	  unavailable.
173
174	  The driver can be built as a module by choosing M, and will
175	  be called s3c2410_wdt
176
177config SA1100_WATCHDOG
178	tristate "SA1100/PXA2xx watchdog"
179	depends on ARCH_SA1100 || ARCH_PXA
180	help
181	  Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
182	  reboot your system when timeout is reached.
183
184	  NOTE: once enabled, this timer cannot be disabled.
185
186	  To compile this driver as a module, choose M here: the
187	  module will be called sa1100_wdt.
188
189config MPCORE_WATCHDOG
190	tristate "MPcore watchdog"
191	depends on HAVE_ARM_TWD
192	help
193	  Watchdog timer embedded into the MPcore system.
194
195	  To compile this driver as a module, choose M here: the
196	  module will be called mpcore_wdt.
197
198config EP93XX_WATCHDOG
199	tristate "EP93xx Watchdog"
200	depends on ARCH_EP93XX
201	help
202	  Say Y here if to include support for the watchdog timer
203	  embedded in the Cirrus Logic EP93xx family of devices.
204
205	  To compile this driver as a module, choose M here: the
206	  module will be called ep93xx_wdt.
207
208config OMAP_WATCHDOG
209	tristate "OMAP Watchdog"
210	depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
211	help
212	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.  Say 'Y'
213	  here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
214
215config PNX4008_WATCHDOG
216	tristate "PNX4008 and LPC32XX Watchdog"
217	depends on ARCH_PNX4008 || ARCH_LPC32XX
218	help
219	  Say Y here if to include support for the watchdog timer
220	  in the PNX4008 or LPC32XX processor.
221	  This driver can be built as a module by choosing M. The module
222	  will be called pnx4008_wdt.
223
224	  Say N if you are unsure.
225
226config IOP_WATCHDOG
227	tristate "IOP Watchdog"
228	depends on PLAT_IOP
229	select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
230	help
231	  Say Y here if to include support for the watchdog timer
232	  in the Intel IOP3XX & IOP13XX I/O Processors.  This driver can
233	  be built as a module by choosing M. The module will
234	  be called iop_wdt.
235
236	  Note: The IOP13XX watchdog does an Internal Bus Reset which will
237	  affect both cores and the peripherals of the IOP.  The ATU-X
238	  and/or ATUe configuration registers will remain intact, but if
239	  operating as an Root Complex and/or Central Resource, the PCI-X
240	  and/or PCIe busses will also be reset.  THIS IS A VERY BIG HAMMER.
241
242config DAVINCI_WATCHDOG
243	tristate "DaVinci watchdog"
244	depends on ARCH_DAVINCI
245	help
246	  Say Y here if to include support for the watchdog timer
247	  in the DaVinci DM644x/DM646x processors.
248	  To compile this driver as a module, choose M here: the
249	  module will be called davinci_wdt.
250
251	  NOTE: once enabled, this timer cannot be disabled.
252	  Say N if you are unsure.
253
254config ORION_WATCHDOG
255	tristate "Orion watchdog"
256	depends on ARCH_ORION5X || ARCH_KIRKWOOD
257	help
258	  Say Y here if to include support for the watchdog timer
259	  in the Marvell Orion5x and Kirkwood ARM SoCs.
260	  To compile this driver as a module, choose M here: the
261	  module will be called orion_wdt.
262
263config COH901327_WATCHDOG
264	bool "ST-Ericsson COH 901 327 watchdog"
265	depends on ARCH_U300
266	default y if MACH_U300
267	help
268	  Say Y here to include Watchdog timer support for the
269	  watchdog embedded into the ST-Ericsson U300 series platforms.
270	  This watchdog is used to reset the system and thus cannot be
271	  compiled as a module.
272
273config TWL4030_WATCHDOG
274	tristate "TWL4030 Watchdog"
275	depends on TWL4030_CORE
276	help
277	  Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
278	  watchdog timer support for TWL4030 chips.
279
280config STMP3XXX_WATCHDOG
281	tristate "Freescale STMP3XXX watchdog"
282	depends on ARCH_STMP3XXX
283	help
284	  Say Y here if to include support for the watchdog timer
285	  for the Sigmatel STMP37XX/378X SoC.
286	  To compile this driver as a module, choose M here: the
287	  module will be called stmp3xxx_wdt.
288
289config NUC900_WATCHDOG
290	tristate "Nuvoton NUC900 watchdog"
291	depends on ARCH_W90X900
292	help
293	  Say Y here if to include support for the watchdog timer
294	  for the Nuvoton NUC900 series SoCs.
295	  To compile this driver as a module, choose M here: the
296	  module will be called nuc900_wdt.
297
298config ADX_WATCHDOG
299	tristate "Avionic Design Xanthos watchdog"
300	depends on ARCH_PXA_ADX
301	help
302	  Say Y here if you want support for the watchdog timer on Avionic
303	  Design Xanthos boards.
304
305config TS72XX_WATCHDOG
306	tristate "TS-72XX SBC Watchdog"
307	depends on MACH_TS72XX
308	help
309	  Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
310	  watchdog timer implemented in a external CPLD chip. Say Y here
311	  if you want to support for the watchdog timer on TS-72XX boards.
312
313	  To compile this driver as a module, choose M here: the
314	  module will be called ts72xx_wdt.
315
316config MAX63XX_WATCHDOG
317	tristate "Max63xx watchdog"
318	depends on ARM && HAS_IOMEM
319	help
320	  Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
321
322config IMX2_WDT
323	tristate "IMX2+ Watchdog"
324	depends on ARCH_MX2 || ARCH_MX25 || ARCH_MX3 || ARCH_MX5
325	help
326	  This is the driver for the hardware watchdog
327	  on the Freescale IMX2 and later processors.
328	  If you have one of these processors and wish to have
329	  watchdog support enabled, say Y, otherwise say N.
330
331	  To compile this driver as a module, choose M here: the
332	  module will be called imx2_wdt.
333
334# AVR32 Architecture
335
336config AT32AP700X_WDT
337	tristate "AT32AP700x watchdog"
338	depends on CPU_AT32AP700X
339	help
340	  Watchdog timer embedded into AT32AP700x devices. This will reboot
341	  your system when the timeout is reached.
342
343# BLACKFIN Architecture
344
345config BFIN_WDT
346	tristate "Blackfin On-Chip Watchdog Timer"
347	depends on BLACKFIN
348	---help---
349	  If you say yes here you will get support for the Blackfin On-Chip
350	  Watchdog Timer. If you have one of these processors and wish to
351	  have watchdog support enabled, say Y, otherwise say N.
352
353	  To compile this driver as a module, choose M here: the
354	  module will be called bfin_wdt.
355
356# CRIS Architecture
357
358# FRV Architecture
359
360# H8300 Architecture
361
362# X86 (i386 + ia64 + x86_64) Architecture
363
364config ACQUIRE_WDT
365	tristate "Acquire SBC Watchdog Timer"
366	depends on X86
367	---help---
368	  This is the driver for the hardware watchdog on Single Board
369	  Computers produced by Acquire Inc (and others). This watchdog
370	  simply watches your kernel to make sure it doesn't freeze, and if
371	  it does, it reboots your computer after a certain amount of time.
372
373	  To compile this driver as a module, choose M here: the
374	  module will be called acquirewdt.
375
376	  Most people will say N.
377
378config ADVANTECH_WDT
379	tristate "Advantech SBC Watchdog Timer"
380	depends on X86
381	help
382	  If you are configuring a Linux kernel for the Advantech single-board
383	  computer, say `Y' here to support its built-in watchdog timer
384	  feature. More information can be found at
385	  <http://www.advantech.com.tw/products/>
386
387config ALIM1535_WDT
388	tristate "ALi M1535 PMU Watchdog Timer"
389	depends on X86 && PCI
390	---help---
391	  This is the driver for the hardware watchdog on the ALi M1535 PMU.
392
393	  To compile this driver as a module, choose M here: the
394	  module will be called alim1535_wdt.
395
396	  Most people will say N.
397
398config ALIM7101_WDT
399	tristate "ALi M7101 PMU Computer Watchdog"
400	depends on PCI
401	help
402	  This is the driver for the hardware watchdog on the ALi M7101 PMU
403	  as used in the x86 Cobalt servers and also found in some
404	  SPARC Netra servers too.
405
406	  To compile this driver as a module, choose M here: the
407	  module will be called alim7101_wdt.
408
409	  Most people will say N.
410
411config F71808E_WDT
412	tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
413	depends on X86 && EXPERIMENTAL
414	help
415	  This is the driver for the hardware watchdog on the Fintek
416	  F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
417
418	  You can compile this driver directly into the kernel, or use
419	  it as a module.  The module will be called f71808e_wdt.
420
421config SP5100_TCO
422	tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
423	depends on X86 && PCI
424	---help---
425	  Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
426	  (Total Cost of Ownership) timer is a watchdog timer that will reboot
427	  the machine after its expiration. The expiration time can be
428	  configured with the "heartbeat" parameter.
429
430	  To compile this driver as a module, choose M here: the
431	  module will be called sp5100_tco.
432
433config GEODE_WDT
434	tristate "AMD Geode CS5535/CS5536 Watchdog"
435	depends on CS5535_MFGPT
436	help
437	  This driver enables a watchdog capability built into the
438	  CS5535/CS5536 companion chips for the AMD Geode GX and LX
439	  processors.  This watchdog watches your kernel to make sure
440	  it doesn't freeze, and if it does, it reboots your computer after
441	  a certain amount of time.
442
443	  You can compile this driver directly into the kernel, or use
444	  it as a module.  The module will be called geodewdt.
445
446config SC520_WDT
447	tristate "AMD Elan SC520 processor Watchdog"
448	depends on X86
449	help
450	  This is the driver for the hardware watchdog built in to the
451	  AMD "Elan" SC520 microcomputer commonly used in embedded systems.
452	  This watchdog simply watches your kernel to make sure it doesn't
453	  freeze, and if it does, it reboots your computer after a certain
454	  amount of time.
455
456	  You can compile this driver directly into the kernel, or use
457	  it as a module.  The module will be called sc520_wdt.
458
459config SBC_FITPC2_WATCHDOG
460	tristate "Compulab SBC-FITPC2 watchdog"
461	depends on X86
462	---help---
463	  This is the driver for the built-in watchdog timer on the fit-PC2,
464	  fit-PC2i, CM-iAM single-board computers made by Compulab.
465
466	  It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
467	  When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
468
469	  Entering BIOS setup temporary disables watchdog operation regardless to current state,
470	  so system will not be restarted while user in BIOS setup.
471
472	  Once watchdog was enabled the system will be restarted every
473	  "Watchdog Timer Value" period, so to prevent it user can restart or
474	  disable the watchdog.
475
476	  To compile this driver as a module, choose M here: the
477	  module will be called sbc_fitpc2_wdt.
478
479	  Most people will say N.
480
481config EUROTECH_WDT
482	tristate "Eurotech CPU-1220/1410 Watchdog Timer"
483	depends on X86
484	help
485	  Enable support for the watchdog timer on the Eurotech CPU-1220 and
486	  CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
487	  information are at <http://www.eurotech.it/>.
488
489config IB700_WDT
490	tristate "IB700 SBC Watchdog Timer"
491	depends on X86
492	---help---
493	  This is the driver for the hardware watchdog on the IB700 Single
494	  Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
495	  simply watches your kernel to make sure it doesn't freeze, and if
496	  it does, it reboots your computer after a certain amount of time.
497
498	  This driver is like the WDT501 driver but for slightly different hardware.
499
500	  To compile this driver as a module, choose M here: the
501	  module will be called ib700wdt.
502
503	  Most people will say N.
504
505config IBMASR
506	tristate "IBM Automatic Server Restart"
507	depends on X86
508	help
509	  This is the driver for the IBM Automatic Server Restart watchdog
510	  timer built-in into some eServer xSeries machines.
511
512	  To compile this driver as a module, choose M here: the
513	  module will be called ibmasr.
514
515config WAFER_WDT
516	tristate "ICP Single Board Computer Watchdog Timer"
517	depends on X86
518	help
519	  This is a driver for the hardware watchdog on the ICP Single
520	  Board Computer. This driver is working on (at least) the following
521	  IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
522
523	  To compile this driver as a module, choose M here: the
524	  module will be called wafer5823wdt.
525
526config I6300ESB_WDT
527	tristate "Intel 6300ESB Timer/Watchdog"
528	depends on X86 && PCI
529	---help---
530	  Hardware driver for the watchdog timer built into the Intel
531	  6300ESB controller hub.
532
533	  To compile this driver as a module, choose M here: the
534	  module will be called i6300esb.
535
536config ITCO_WDT
537	tristate "Intel TCO Timer/Watchdog"
538	depends on (X86 || IA64) && PCI
539	---help---
540	  Hardware driver for the intel TCO timer based watchdog devices.
541	  These drivers are included in the Intel 82801 I/O Controller
542	  Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
543	  controller hub.
544
545	  The TCO (Total Cost of Ownership) timer is a watchdog timer
546	  that will reboot the machine after its second expiration. The
547	  expiration time can be configured with the "heartbeat" parameter.
548
549	  On some motherboards the driver may fail to reset the chipset's
550	  NO_REBOOT flag which prevents the watchdog from rebooting the
551	  machine. If this is the case you will get a kernel message like
552	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
553
554	  To compile this driver as a module, choose M here: the
555	  module will be called iTCO_wdt.
556
557config ITCO_VENDOR_SUPPORT
558	bool "Intel TCO Timer/Watchdog Specific Vendor Support"
559	depends on ITCO_WDT
560	---help---
561	  Add vendor specific support to the intel TCO timer based watchdog
562	  devices. At this moment we only have additional support for some
563	  SuperMicro Inc. motherboards.
564
565config IT8712F_WDT
566	tristate "IT8712F (Smart Guardian) Watchdog Timer"
567	depends on X86
568	---help---
569	  This is the driver for the built-in watchdog timer on the IT8712F
570	  Super I/0 chipset used on many motherboards.
571
572	  If the driver does not work, then make sure that the game port in
573	  the BIOS is enabled.
574
575	  To compile this driver as a module, choose M here: the
576	  module will be called it8712f_wdt.
577
578config IT87_WDT
579	tristate "IT87 Watchdog Timer"
580	depends on X86 && EXPERIMENTAL
581	---help---
582	  This is the driver for the hardware watchdog on the ITE IT8702,
583	  IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 Super I/O chips.
584	  This watchdog simply watches your kernel to make sure it doesn't
585	  freeze, and if it does, it reboots your computer after a certain
586	  amount of time.
587
588	  To compile this driver as a module, choose M here: the module will
589	  be called it87_wdt.
590
591config HP_WATCHDOG
592	tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
593	depends on X86
594	default m
595	help
596	  A software monitoring watchdog and NMI sourcing driver. This driver
597	  will detect lockups and provide a stack trace. This is a driver that
598	  will only load on an HP ProLiant system with a minimum of iLO2 support.
599	  To compile this driver as a module, choose M here: the module will be
600	  called hpwdt.
601
602config HPWDT_NMI_DECODING
603	bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
604	depends on HP_WATCHDOG
605	default y
606	help
607	  When an NMI occurs this feature will make the necessary BIOS calls to
608	  log the cause of the NMI.
609
610config SC1200_WDT
611	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
612	depends on X86
613	help
614	  This is a driver for National Semiconductor PC87307/PC97307 hardware
615	  watchdog cards as found on the SC1200. This watchdog is mainly used
616	  for power management purposes and can be used to power down the device
617	  during inactivity periods (includes interrupt activity monitoring).
618
619	  To compile this driver as a module, choose M here: the
620	  module will be called sc1200wdt.
621
622	  Most people will say N.
623
624config SCx200_WDT
625	tristate "National Semiconductor SCx200 Watchdog"
626	depends on SCx200 && PCI
627	help
628	  Enable the built-in watchdog timer support on the National
629	  Semiconductor SCx200 processors.
630
631	  If compiled as a module, it will be called scx200_wdt.
632
633config PC87413_WDT
634	tristate "NS PC87413 watchdog"
635	depends on X86
636	---help---
637	  This is the driver for the hardware watchdog on the PC87413 chipset
638	  This watchdog simply watches your kernel to make sure it doesn't
639	  freeze, and if it does, it reboots your computer after a certain
640	  amount of time.
641
642	  To compile this driver as a module, choose M here: the
643	  module will be called pc87413_wdt.
644
645	  Most people will say N.
646
647config NV_TCO
648	tristate "nVidia TCO Timer/Watchdog"
649	depends on X86 && PCI
650	---help---
651	  Hardware driver for the TCO timer built into the nVidia Hub family
652	  (such as the MCP51).  The TCO (Total Cost of Ownership) timer is a
653	  watchdog timer that will reboot the machine after its second
654	  expiration. The expiration time can be configured with the
655	  "heartbeat" parameter.
656
657	  On some motherboards the driver may fail to reset the chipset's
658	  NO_REBOOT flag which prevents the watchdog from rebooting the
659	  machine. If this is the case you will get a kernel message like
660	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
661
662	  To compile this driver as a module, choose M here: the
663	  module will be called nv_tco.
664
665config RDC321X_WDT
666	tristate "RDC R-321x SoC watchdog"
667	depends on X86_RDC321X
668	help
669	  This is the driver for the built in hardware watchdog
670	  in the RDC R-321x SoC.
671
672	  To compile this driver as a module, choose M here: the
673	  module will be called rdc321x_wdt.
674
675config 60XX_WDT
676	tristate "SBC-60XX Watchdog Timer"
677	depends on X86
678	help
679	  This driver can be used with the watchdog timer found on some
680	  single board computers, namely the 6010 PII based computer.
681	  It may well work with other cards.  It reads port 0x443 to enable
682	  and re-set the watchdog timer, and reads port 0x45 to disable
683	  the watchdog.  If you have a card that behave in similar ways,
684	  you can probably make this driver work with your card as well.
685
686	  You can compile this driver directly into the kernel, or use
687	  it as a module.  The module will be called sbc60xxwdt.
688
689config SBC8360_WDT
690	tristate "SBC8360 Watchdog Timer"
691	depends on X86
692	---help---
693
694	  This is the driver for the hardware watchdog on the SBC8360 Single
695	  Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
696
697	  To compile this driver as a module, choose M here: the
698	  module will be called sbc8360.
699
700	  Most people will say N.
701
702config SBC7240_WDT
703	tristate "SBC Nano 7240 Watchdog Timer"
704	depends on X86_32
705	---help---
706	  This is the driver for the hardware watchdog found on the IEI
707	  single board computers EPIC Nano 7240 (and likely others). This
708	  watchdog simply watches your kernel to make sure it doesn't freeze,
709	  and if it does, it reboots your computer after a certain amount of
710	  time.
711
712	  To compile this driver as a module, choose M here: the
713	  module will be called sbc7240_wdt.
714
715config CPU5_WDT
716	tristate "SMA CPU5 Watchdog"
717	depends on X86
718	---help---
719	  TBD.
720	  To compile this driver as a module, choose M here: the
721	  module will be called cpu5wdt.
722
723config SMSC_SCH311X_WDT
724	tristate "SMSC SCH311X Watchdog Timer"
725	depends on X86
726	---help---
727	  This is the driver for the hardware watchdog timer on the
728	  SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
729	  (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
730	  serial ports).
731
732	  To compile this driver as a module, choose M here: the
733	  module will be called sch311x_wdt.
734
735config SMSC37B787_WDT
736	tristate "Winbond SMsC37B787 Watchdog Timer"
737	depends on X86
738	---help---
739	  This is the driver for the hardware watchdog component on the
740	  Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
741	  from Vision Systems and maybe others.
742
743	  This watchdog simply watches your kernel to make sure it doesn't
744	  freeze, and if it does, it reboots your computer after a certain
745	  amount of time.
746
747	  Usually a userspace daemon will notify the kernel WDT driver that
748	  userspace is still alive, at regular intervals.
749
750	  To compile this driver as a module, choose M here: the
751	  module will be called smsc37b787_wdt.
752
753	  Most people will say N.
754
755config W83627HF_WDT
756	tristate "W83627HF/W83627DHG Watchdog Timer"
757	depends on X86
758	---help---
759	  This is the driver for the hardware watchdog on the W83627HF chipset
760	  as used in Advantech PC-9578 and Tyan S2721-533 motherboards
761	  (and likely others). The driver also supports the W83627DHG chip.
762	  This watchdog simply watches your kernel to make sure it doesn't
763	  freeze, and if it does, it reboots your computer after a certain
764	  amount of time.
765
766	  To compile this driver as a module, choose M here: the
767	  module will be called w83627hf_wdt.
768
769	  Most people will say N.
770
771config W83697HF_WDT
772	tristate "W83697HF/W83697HG Watchdog Timer"
773	depends on X86
774	---help---
775	  This is the driver for the hardware watchdog on the W83697HF/HG
776	  chipset as used in Dedibox/VIA motherboards (and likely others).
777	  This watchdog simply watches your kernel to make sure it doesn't
778	  freeze, and if it does, it reboots your computer after a certain
779	  amount of time.
780
781	  To compile this driver as a module, choose M here: the
782	  module will be called w83697hf_wdt.
783
784	  Most people will say N.
785
786config W83697UG_WDT
787	tristate "W83697UG/W83697UF Watchdog Timer"
788	depends on X86
789	---help---
790	  This is the driver for the hardware watchdog on the W83697UG/UF
791	  chipset as used in MSI Fuzzy CX700 VIA motherboards (and likely others).
792	  This watchdog simply watches your kernel to make sure it doesn't
793	  freeze, and if it does, it reboots your computer after a certain
794	  amount of time.
795
796	  To compile this driver as a module, choose M here: the
797	  module will be called w83697ug_wdt.
798
799	  Most people will say N.
800
801config W83877F_WDT
802	tristate "W83877F (EMACS) Watchdog Timer"
803	depends on X86
804	---help---
805	  This is the driver for the hardware watchdog on the W83877F chipset
806	  as used in EMACS PC-104 motherboards (and likely others).  This
807	  watchdog simply watches your kernel to make sure it doesn't freeze,
808	  and if it does, it reboots your computer after a certain amount of
809	  time.
810
811	  To compile this driver as a module, choose M here: the
812	  module will be called w83877f_wdt.
813
814	  Most people will say N.
815
816config W83977F_WDT
817	tristate "W83977F (PCM-5335) Watchdog Timer"
818	depends on X86
819	---help---
820	  This is the driver for the hardware watchdog on the W83977F I/O chip
821	  as used in AAEON's PCM-5335 SBC (and likely others).  This
822	  watchdog simply watches your kernel to make sure it doesn't freeze,
823	  and if it does, it reboots your computer after a certain amount of
824	  time.
825
826	  To compile this driver as a module, choose M here: the
827	  module will be called w83977f_wdt.
828
829config MACHZ_WDT
830	tristate "ZF MachZ Watchdog"
831	depends on X86
832	---help---
833	  If you are using a ZF Micro MachZ processor, say Y here, otherwise
834	  N.  This is the driver for the watchdog timer built-in on that
835	  processor using ZF-Logic interface.  This watchdog simply watches
836	  your kernel to make sure it doesn't freeze, and if it does, it
837	  reboots your computer after a certain amount of time.
838
839	  To compile this driver as a module, choose M here: the
840	  module will be called machzwd.
841
842config SBC_EPX_C3_WATCHDOG
843	tristate "Winsystems SBC EPX-C3 watchdog"
844	depends on X86
845	---help---
846	  This is the driver for the built-in watchdog timer on the EPX-C3
847	  Single-board computer made by Winsystems, Inc.
848
849	  *Note*: This hardware watchdog is not probeable and thus there
850	  is no way to know if writing to its IO address will corrupt
851	  your system or have any real effect.  The only way to be sure
852	  that this driver does what you want is to make sure you
853	  are running it on an EPX-C3 from Winsystems with the watchdog
854	  timer at IO address 0x1ee and 0x1ef.  It will write to both those
855	  IO ports.  Basically, the assumption is made that if you compile
856	  this driver into your kernel and/or load it as a module, that you
857	  know what you are doing and that you are in fact running on an
858	  EPX-C3 board!
859
860	  To compile this driver as a module, choose M here: the
861	  module will be called sbc_epx_c3.
862
863# M32R Architecture
864
865# M68K Architecture
866
867config M54xx_WATCHDOG
868	tristate "MCF54xx watchdog support"
869	depends on M548x
870	help
871	  To compile this driver as a module, choose M here: the
872	  module will be called m54xx_wdt.
873
874# MIPS Architecture
875
876config ATH79_WDT
877	tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
878	depends on ATH79
879	help
880	  Hardware driver for the built-in watchdog timer on the Atheros
881	  AR71XX/AR724X/AR913X SoCs.
882
883config BCM47XX_WDT
884	tristate "Broadcom BCM47xx Watchdog Timer"
885	depends on BCM47XX
886	help
887	  Hardware driver for the Broadcom BCM47xx Watchog Timer.
888
889config RC32434_WDT
890	tristate "IDT RC32434 SoC Watchdog Timer"
891	depends on MIKROTIK_RB532
892	help
893	  Hardware driver for the IDT RC32434 SoC built-in
894	  watchdog timer.
895
896	  To compile this driver as a module, choose M here: the
897	  module will be called rc32434_wdt.
898
899config INDYDOG
900	tristate "Indy/I2 Hardware Watchdog"
901	depends on SGI_HAS_INDYDOG
902	help
903	  Hardware driver for the Indy's/I2's watchdog. This is a
904	  watchdog timer that will reboot the machine after a 60 second
905	  timer expired and no process has written to /dev/watchdog during
906	  that time.
907
908config JZ4740_WDT
909	tristate "Ingenic jz4740 SoC hardware watchdog"
910	depends on MACH_JZ4740
911	help
912	  Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
913
914config WDT_MTX1
915	tristate "MTX-1 Hardware Watchdog"
916	depends on MIPS_MTX1
917	help
918	  Hardware driver for the MTX-1 boards. This is a watchdog timer that
919	  will reboot the machine after a 100 seconds timer expired.
920
921config PNX833X_WDT
922	tristate "PNX833x Hardware Watchdog"
923	depends on SOC_PNX8335
924	help
925	  Hardware driver for the PNX833x's watchdog. This is a
926	  watchdog timer that will reboot the machine after a programable
927	  timer has expired and no process has written to /dev/watchdog during
928	  that time.
929
930config SIBYTE_WDOG
931	tristate "Sibyte SoC hardware watchdog"
932	depends on CPU_SB1
933	help
934	  Watchdog driver for the built in watchdog hardware in Sibyte
935	  SoC processors.  There are apparently two watchdog timers
936	  on such processors; this driver supports only the first one,
937	  because currently Linux only supports exporting one watchdog
938	  to userspace.
939
940	  To compile this driver as a loadable module, choose M here.
941	  The module will be called sb_wdog.
942
943config AR7_WDT
944	tristate "TI AR7 Watchdog Timer"
945	depends on AR7
946	help
947	  Hardware driver for the TI AR7 Watchdog Timer.
948
949config TXX9_WDT
950	tristate "Toshiba TXx9 Watchdog Timer"
951	depends on CPU_TX39XX || CPU_TX49XX
952	help
953	  Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
954
955config OCTEON_WDT
956	tristate "Cavium OCTEON SOC family Watchdog Timer"
957	depends on CPU_CAVIUM_OCTEON
958	default y
959	select EXPORT_UASM if OCTEON_WDT = m
960	help
961	  Hardware driver for OCTEON's on chip watchdog timer.
962	  Enables the watchdog for all cores running Linux. It
963	  installs a NMI handler and pokes the watchdog based on an
964	  interrupt.  On first expiration of the watchdog, the
965	  interrupt handler pokes it.  The second expiration causes an
966	  NMI that prints a message. The third expiration causes a
967	  global soft reset.
968
969	  When userspace has /dev/watchdog open, no poking is done
970	  from the first interrupt, it is then only poked when the
971	  device is written.
972
973config BCM63XX_WDT
974	tristate "Broadcom BCM63xx hardware watchdog"
975	depends on BCM63XX
976	help
977	  Watchdog driver for the built in watchdog hardware in Broadcom
978	  BCM63xx SoC.
979
980	  To compile this driver as a loadable module, choose M here.
981	  The module will be called bcm63xx_wdt.
982
983# PARISC Architecture
984
985# POWERPC Architecture
986
987config GEF_WDT
988	tristate "GE Watchdog Timer"
989	depends on GEF_SBC610 || GEF_SBC310 || GEF_PPC9A
990	---help---
991	  Watchdog timer found in a number of GE single board computers.
992
993config MPC5200_WDT
994	bool "MPC52xx Watchdog Timer"
995	depends on PPC_MPC52xx
996	help
997	  Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
998
999config 8xxx_WDT
1000	tristate "MPC8xxx Platform Watchdog Timer"
1001	depends on PPC_8xx || PPC_83xx || PPC_86xx
1002	help
1003	  This driver is for a SoC level watchdog that exists on some
1004	  Freescale PowerPC processors. So far this driver supports:
1005	  - MPC8xx watchdogs
1006	  - MPC83xx watchdogs
1007	  - MPC86xx watchdogs
1008
1009	  For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1010
1011config MV64X60_WDT
1012	tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1013	depends on MV64X60
1014
1015config PIKA_WDT
1016	tristate "PIKA FPGA Watchdog"
1017	depends on WARP
1018	default y
1019	help
1020	  This enables the watchdog in the PIKA FPGA. Currently used on
1021	  the Warp platform.
1022
1023config BOOKE_WDT
1024	tristate "PowerPC Book-E Watchdog Timer"
1025	depends on BOOKE || 4xx
1026	---help---
1027	  Watchdog driver for PowerPC Book-E chips, such as the Freescale
1028	  MPC85xx SOCs and the IBM PowerPC 440.
1029
1030	  Please see Documentation/watchdog/watchdog-api.txt for
1031	  more information.
1032
1033config BOOKE_WDT_DEFAULT_TIMEOUT
1034	int "PowerPC Book-E Watchdog Timer Default Timeout"
1035	depends on BOOKE_WDT
1036	default 38 if FSL_BOOKE
1037	range 0 63 if FSL_BOOKE
1038	default 3 if !FSL_BOOKE
1039	range 0 3 if !FSL_BOOKE
1040	help
1041	  Select the default watchdog timer period to be used by the PowerPC
1042	  Book-E watchdog driver.  A watchdog "event" occurs when the bit
1043	  position represented by this number transitions from zero to one.
1044
1045	  For Freescale Book-E processors, this is a number between 0 and 63.
1046	  For other Book-E processors, this is a number between 0 and 3.
1047
1048	  The value can be overidden by the wdt_period command-line parameter.
1049
1050# PPC64 Architecture
1051
1052config WATCHDOG_RTAS
1053	tristate "RTAS watchdog"
1054	depends on PPC_RTAS
1055	help
1056	  This driver adds watchdog support for the RTAS watchdog.
1057
1058	  To compile this driver as a module, choose M here. The module
1059	  will be called wdrtas.
1060
1061# S390 Architecture
1062
1063config ZVM_WATCHDOG
1064	tristate "z/VM Watchdog Timer"
1065	depends on S390
1066	help
1067	  IBM s/390 and zSeries machines running under z/VM 5.1 or later
1068	  provide a virtual watchdog timer to their guest that cause a
1069	  user define Control Program command to be executed after a
1070	  timeout.
1071
1072	  To compile this driver as a module, choose M here. The module
1073	  will be called vmwatchdog.
1074
1075# SUPERH (sh + sh64) Architecture
1076
1077config SH_WDT
1078	tristate "SuperH Watchdog"
1079	depends on SUPERH && (CPU_SH3 || CPU_SH4)
1080	help
1081	  This driver adds watchdog support for the integrated watchdog in the
1082	  SuperH processors. If you have one of these processors and wish
1083	  to have watchdog support enabled, say Y, otherwise say N.
1084
1085	  As a side note, saying Y here will automatically boost HZ to 1000
1086	  so that the timer has a chance to clear the overflow counter. On
1087	  slower systems (such as the SH-2 and SH-3) this will likely yield
1088	  some performance issues. As such, the WDT should be avoided here
1089	  unless it is absolutely necessary.
1090
1091	  To compile this driver as a module, choose M here: the
1092	  module will be called shwdt.
1093
1094config SH_WDT_MMAP
1095	bool "Allow mmap of SH WDT"
1096	default n
1097	depends on SH_WDT
1098	help
1099	  If you say Y here, user applications will be able to mmap the
1100	  WDT/CPG registers.
1101
1102# SPARC Architecture
1103
1104# SPARC64 Architecture
1105
1106config WATCHDOG_CP1XXX
1107	tristate "CP1XXX Hardware Watchdog support"
1108	depends on SPARC64 && PCI
1109	---help---
1110	  This is the driver for the hardware watchdog timers present on
1111	  Sun Microsystems CompactPCI models CP1400 and CP1500.
1112
1113	  To compile this driver as a module, choose M here: the
1114	  module will be called cpwatchdog.
1115
1116	  If you do not have a CompactPCI model CP1400 or CP1500, or
1117	  another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1118	  you should say N to this option.
1119
1120config WATCHDOG_RIO
1121	tristate "RIO Hardware Watchdog support"
1122	depends on SPARC64 && PCI
1123	help
1124	  Say Y here to support the hardware watchdog capability on Sun RIO
1125	  machines.  The watchdog timeout period is normally one minute but
1126	  can be changed with a boot-time parameter.
1127
1128# XTENSA Architecture
1129
1130#
1131# ISA-based Watchdog Cards
1132#
1133
1134comment "ISA-based Watchdog Cards"
1135	depends on ISA
1136
1137config PCWATCHDOG
1138	tristate "Berkshire Products ISA-PC Watchdog"
1139	depends on ISA
1140	---help---
1141	  This is the driver for the Berkshire Products ISA-PC Watchdog card.
1142	  This card simply watches your kernel to make sure it doesn't freeze,
1143	  and if it does, it reboots your computer after a certain amount of
1144	  time. This driver is like the WDT501 driver but for different
1145	  hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1146	  watchdog cards can be ordered from <http://www.berkprod.com/>.
1147
1148	  To compile this driver as a module, choose M here: the
1149	  module will be called pcwd.
1150
1151	  Most people will say N.
1152
1153config MIXCOMWD
1154	tristate "Mixcom Watchdog"
1155	depends on ISA
1156	---help---
1157	  This is a driver for the Mixcom hardware watchdog cards.  This
1158	  watchdog simply watches your kernel to make sure it doesn't freeze,
1159	  and if it does, it reboots your computer after a certain amount of
1160	  time.
1161
1162	  To compile this driver as a module, choose M here: the
1163	  module will be called mixcomwd.
1164
1165	  Most people will say N.
1166
1167config WDT
1168	tristate "WDT Watchdog timer"
1169	depends on ISA
1170	---help---
1171	  If you have a WDT500P or WDT501P watchdog board, say Y here,
1172	  otherwise N. It is not possible to probe for this board, which means
1173	  that you have to inform the kernel about the IO port and IRQ that
1174	  is needed (you can do this via the io and irq parameters)
1175
1176	  To compile this driver as a module, choose M here: the
1177	  module will be called wdt.
1178
1179#
1180# PCI-based Watchdog Cards
1181#
1182
1183comment "PCI-based Watchdog Cards"
1184	depends on PCI
1185
1186config PCIPCWATCHDOG
1187	tristate "Berkshire Products PCI-PC Watchdog"
1188	depends on PCI
1189	---help---
1190	  This is the driver for the Berkshire Products PCI-PC Watchdog card.
1191	  This card simply watches your kernel to make sure it doesn't freeze,
1192	  and if it does, it reboots your computer after a certain amount of
1193	  time. The card can also monitor the internal temperature of the PC.
1194	  More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1195
1196	  To compile this driver as a module, choose M here: the
1197	  module will be called pcwd_pci.
1198
1199	  Most people will say N.
1200
1201config WDTPCI
1202	tristate "PCI-WDT500/501 Watchdog timer"
1203	depends on PCI
1204	---help---
1205	  If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1206
1207	  If you have a PCI-WDT501 watchdog board then you can enable the
1208	  temperature sensor by setting the type parameter to 501.
1209
1210	  If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1211	  can do this via the tachometer parameter. Only do this if you have a
1212	  fan tachometer actually set up.
1213
1214	  To compile this driver as a module, choose M here: the
1215	  module will be called wdt_pci.
1216
1217#
1218# USB-based Watchdog Cards
1219#
1220
1221comment "USB-based Watchdog Cards"
1222	depends on USB
1223
1224config USBPCWATCHDOG
1225	tristate "Berkshire Products USB-PC Watchdog"
1226	depends on USB
1227	---help---
1228	  This is the driver for the Berkshire Products USB-PC Watchdog card.
1229	  This card simply watches your kernel to make sure it doesn't freeze,
1230	  and if it does, it reboots your computer after a certain amount of
1231	  time. The card can also monitor the internal temperature of the PC.
1232	  More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1233
1234	  To compile this driver as a module, choose M here: the
1235	  module will be called pcwd_usb.
1236
1237	  Most people will say N.
1238
1239endif # WATCHDOG
1240