xref: /openbmc/linux/drivers/watchdog/Kconfig (revision 568b9de4)
1# SPDX-License-Identifier: GPL-2.0-only
2
3#
4# Watchdog device configuration
5#
6
7menuconfig WATCHDOG
8	bool "Watchdog Timer Support"
9	---help---
10	  If you say Y here (and to one of the following options) and create a
11	  character special file /dev/watchdog with major number 10 and minor
12	  number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:
13	  subsequently opening the file and then failing to write to it for
14	  longer than 1 minute will result in rebooting the machine. This
15	  could be useful for a networked machine that needs to come back
16	  on-line as fast as possible after a lock-up. There's both a watchdog
17	  implementation entirely in software (which can sometimes fail to
18	  reboot the machine) and a driver for hardware watchdog boards, which
19	  are more robust and can also keep track of the temperature inside
20	  your computer. For details, read
21	  <file:Documentation/watchdog/watchdog-api.rst> in the kernel source.
22
23	  The watchdog is usually used together with the watchdog daemon
24	  which is available from
25	  <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can
26	  also monitor NFS connections and can reboot the machine when the process
27	  table is full.
28
29	  If unsure, say N.
30
31if WATCHDOG
32
33config WATCHDOG_CORE
34	tristate "WatchDog Timer Driver Core"
35	---help---
36	  Say Y here if you want to use the new watchdog timer driver core.
37	  This driver provides a framework for all watchdog timer drivers
38	  and gives them the /dev/watchdog interface (and later also the
39	  sysfs interface).
40
41config WATCHDOG_NOWAYOUT
42	bool "Disable watchdog shutdown on close"
43	help
44	  The default watchdog behaviour (which you get if you say N here) is
45	  to stop the timer if the process managing it closes the file
46	  /dev/watchdog. It's always remotely possible that this process might
47	  get killed. If you say Y here, the watchdog cannot be stopped once
48	  it has been started.
49
50config WATCHDOG_HANDLE_BOOT_ENABLED
51	bool "Update boot-enabled watchdog until userspace takes over"
52	default y
53	help
54	  The default watchdog behaviour (which you get if you say Y here) is
55	  to ping watchdog devices that were enabled before the driver has
56	  been loaded until control is taken over from userspace using the
57	  /dev/watchdog file. If you say N here, the kernel will not update
58	  the watchdog on its own. Thus if your userspace does not start fast
59	  enough your device will reboot.
60
61config WATCHDOG_OPEN_TIMEOUT
62	int "Timeout value for opening watchdog device"
63	default 0
64	help
65	  The maximum time, in seconds, for which the watchdog framework takes
66	  care of pinging a hardware watchdog.  A value of 0 means infinite. The
67	  value set here can be overridden by the commandline parameter
68	  "watchdog.open_timeout".
69
70config WATCHDOG_SYSFS
71	bool "Read different watchdog information through sysfs"
72	help
73	  Say Y here if you want to enable watchdog device status read through
74	  sysfs attributes.
75
76comment "Watchdog Pretimeout Governors"
77
78config WATCHDOG_PRETIMEOUT_GOV
79	bool "Enable watchdog pretimeout governors"
80	depends on WATCHDOG_CORE
81	help
82	  The option allows to select watchdog pretimeout governors.
83
84config WATCHDOG_PRETIMEOUT_GOV_SEL
85	tristate
86	depends on WATCHDOG_PRETIMEOUT_GOV
87	default m
88	select WATCHDOG_PRETIMEOUT_GOV_PANIC if WATCHDOG_PRETIMEOUT_GOV_NOOP=n
89
90if WATCHDOG_PRETIMEOUT_GOV
91
92config WATCHDOG_PRETIMEOUT_GOV_NOOP
93	tristate "Noop watchdog pretimeout governor"
94	depends on WATCHDOG_CORE
95	default WATCHDOG_CORE
96	help
97	  Noop watchdog pretimeout governor, only an informational
98	  message is added to kernel log buffer.
99
100config WATCHDOG_PRETIMEOUT_GOV_PANIC
101	tristate "Panic watchdog pretimeout governor"
102	depends on WATCHDOG_CORE
103	default WATCHDOG_CORE
104	help
105	  Panic watchdog pretimeout governor, on watchdog pretimeout
106	  event put the kernel into panic.
107
108choice
109	prompt "Default Watchdog Pretimeout Governor"
110	default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
111	help
112	  This option selects a default watchdog pretimeout governor.
113	  The governor takes its action, if a watchdog is capable
114	  to report a pretimeout event.
115
116config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP
117	bool "noop"
118	depends on WATCHDOG_PRETIMEOUT_GOV_NOOP
119	help
120	  Use noop watchdog pretimeout governor by default. If noop
121	  governor is selected by a user, write a short message to
122	  the kernel log buffer and don't do any system changes.
123
124config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
125	bool "panic"
126	depends on WATCHDOG_PRETIMEOUT_GOV_PANIC
127	help
128	  Use panic watchdog pretimeout governor by default, if
129	  a watchdog pretimeout event happens, consider that
130	  a watchdog feeder is dead and reboot is unavoidable.
131
132endchoice
133
134endif # WATCHDOG_PRETIMEOUT_GOV
135
136#
137# General Watchdog drivers
138#
139
140comment "Watchdog Device Drivers"
141
142# Architecture Independent
143
144config SOFT_WATCHDOG
145	tristate "Software watchdog"
146	select WATCHDOG_CORE
147	help
148	  A software monitoring watchdog. This will fail to reboot your system
149	  from some situations that the hardware watchdog will recover
150	  from. Equally it's a lot cheaper to install.
151
152	  To compile this driver as a module, choose M here: the
153	  module will be called softdog.
154
155config SOFT_WATCHDOG_PRETIMEOUT
156	bool "Software watchdog pretimeout governor support"
157	depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV
158	help
159	  Enable this if you want to use pretimeout governors with the software
160	  watchdog. Be aware that governors might affect the watchdog because it
161	  is purely software, e.g. the panic governor will stall it!
162
163config BD70528_WATCHDOG
164	tristate "ROHM BD70528 PMIC Watchdog"
165	depends on MFD_ROHM_BD70528
166	select WATCHDOG_CORE
167	help
168	  Support for the watchdog in the ROHM BD70528 PMIC. Watchdog trigger
169	  cause system reset.
170
171	  Say Y here to include support for the ROHM BD70528 watchdog.
172	  Alternatively say M to compile the driver as a module,
173	  which will be called bd70528_wdt.
174
175config DA9052_WATCHDOG
176	tristate "Dialog DA9052 Watchdog"
177	depends on PMIC_DA9052 || COMPILE_TEST
178	select WATCHDOG_CORE
179	help
180	  Support for the watchdog in the DA9052 PMIC. Watchdog trigger
181	  cause system reset.
182
183	  Say Y here to include support for the DA9052 watchdog.
184	  Alternatively say M to compile the driver as a module,
185	  which will be called da9052_wdt.
186
187config DA9055_WATCHDOG
188	tristate "Dialog Semiconductor DA9055 Watchdog"
189	depends on MFD_DA9055 || COMPILE_TEST
190	select WATCHDOG_CORE
191	help
192	  If you say yes here you get support for watchdog on the Dialog
193	  Semiconductor DA9055 PMIC.
194
195	  This driver can also be built as a module.  If so, the module
196	  will be called da9055_wdt.
197
198config DA9063_WATCHDOG
199	tristate "Dialog DA9063 Watchdog"
200	depends on MFD_DA9063 || COMPILE_TEST
201	select WATCHDOG_CORE
202	help
203	  Support for the watchdog in the DA9063 PMIC.
204
205	  This driver can be built as a module. The module name is da9063_wdt.
206
207config DA9062_WATCHDOG
208	tristate "Dialog DA9062/61 Watchdog"
209	depends on MFD_DA9062 || COMPILE_TEST
210	select WATCHDOG_CORE
211	help
212	  Support for the watchdog in the DA9062 and DA9061 PMICs.
213
214	  This driver can be built as a module. The module name is da9062_wdt.
215
216config GPIO_WATCHDOG
217	tristate "Watchdog device controlled through GPIO-line"
218	depends on OF_GPIO
219	select WATCHDOG_CORE
220	help
221	  If you say yes here you get support for watchdog device
222	  controlled through GPIO-line.
223
224config GPIO_WATCHDOG_ARCH_INITCALL
225	bool "Register the watchdog as early as possible"
226	depends on GPIO_WATCHDOG=y
227	help
228	  In some situations, the default initcall level (module_init)
229	  in not early enough in the boot process to avoid the watchdog
230	  to be triggered.
231	  If you say yes here, the initcall level would be raised to
232	  arch_initcall.
233	  If in doubt, say N.
234
235config MENF21BMC_WATCHDOG
236	tristate "MEN 14F021P00 BMC Watchdog"
237	depends on MFD_MENF21BMC || COMPILE_TEST
238	depends on I2C
239	select WATCHDOG_CORE
240	help
241	  Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
242
243	  This driver can also be built as a module. If so the module
244	  will be called menf21bmc_wdt.
245
246config MENZ069_WATCHDOG
247	tristate "MEN 16Z069 Watchdog"
248	depends on MCB
249	select WATCHDOG_CORE
250	help
251	  Say Y here to include support for the MEN 16Z069 Watchdog.
252
253	  This driver can also be built as a module. If so the module
254	  will be called menz069_wdt.
255
256config TANGOX_WATCHDOG
257	tristate "Sigma Designs SMP86xx/SMP87xx watchdog"
258	select WATCHDOG_CORE
259	depends on ARCH_TANGO || COMPILE_TEST
260	depends on HAS_IOMEM
261	help
262	  Support for the watchdog in Sigma Designs SMP86xx (tango3)
263	  and SMP87xx (tango4) family chips.
264
265	  This driver can be built as a module. The module name is tangox_wdt.
266
267config WDAT_WDT
268	tristate "ACPI Watchdog Action Table (WDAT)"
269	depends on ACPI
270	select WATCHDOG_CORE
271	select ACPI_WATCHDOG
272	help
273	  This driver adds support for systems with ACPI Watchdog Action
274	  Table (WDAT) table. Servers typically have this but it can be
275	  found on some desktop machines as well. This driver will take
276	  over the native iTCO watchdog driver found on many Intel CPUs.
277
278	  To compile this driver as module, choose M here: the module will
279	  be called wdat_wdt.
280
281config WM831X_WATCHDOG
282	tristate "WM831x watchdog"
283	depends on MFD_WM831X
284	select WATCHDOG_CORE
285	help
286	  Support for the watchdog in the WM831x AudioPlus PMICs.  When
287	  the watchdog triggers the system will be reset.
288
289config WM8350_WATCHDOG
290	tristate "WM8350 watchdog"
291	depends on MFD_WM8350
292	select WATCHDOG_CORE
293	help
294	  Support for the watchdog in the WM8350 AudioPlus PMIC.  When
295	  the watchdog triggers the system will be reset.
296
297config XILINX_WATCHDOG
298	tristate "Xilinx Watchdog timer"
299	depends on HAS_IOMEM
300	select WATCHDOG_CORE
301	help
302	  Watchdog driver for the xps_timebase_wdt ip core.
303
304	  To compile this driver as a module, choose M here: the
305	  module will be called of_xilinx_wdt.
306
307config ZIIRAVE_WATCHDOG
308	tristate "Zodiac RAVE Watchdog Timer"
309	depends on I2C
310	select WATCHDOG_CORE
311	help
312	  Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
313	  Processor.
314
315	  To compile this driver as a module, choose M here: the
316	  module will be called ziirave_wdt.
317
318config RAVE_SP_WATCHDOG
319	tristate "RAVE SP Watchdog timer"
320	depends on RAVE_SP_CORE
321	depends on NVMEM || !NVMEM
322	select WATCHDOG_CORE
323	help
324	  Support for the watchdog on RAVE SP device.
325
326config MLX_WDT
327	tristate "Mellanox Watchdog"
328	depends on MELLANOX_PLATFORM
329	select WATCHDOG_CORE
330	select REGMAP
331	help
332	  This is the driver for the hardware watchdog on Mellanox systems.
333	  If you are going to use it, say Y here, otherwise N.
334	  This driver can be used together with the watchdog daemon.
335	  It can also watch your kernel to make sure it doesn't freeze,
336	  and if it does, it reboots your system after a certain amount of
337	  time.
338
339	  To compile this driver as a module, choose M here: the
340	  module will be called mlx-wdt.
341
342# ALPHA Architecture
343
344# ARM Architecture
345
346config ARM_SP805_WATCHDOG
347	tristate "ARM SP805 Watchdog"
348	depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
349	select WATCHDOG_CORE
350	help
351	  ARM Primecell SP805 Watchdog timer. This will reboot your system when
352	  the timeout is reached.
353
354config ARM_SBSA_WATCHDOG
355	tristate "ARM SBSA Generic Watchdog"
356	depends on ARM64
357	depends on ARM_ARCH_TIMER
358	select WATCHDOG_CORE
359	help
360	  ARM SBSA Generic Watchdog has two stage timeouts:
361	  the first signal (WS0) is for alerting the system by interrupt,
362	  the second one (WS1) is a real hardware reset.
363	  More details: ARM DEN0029B - Server Base System Architecture (SBSA)
364
365	  This driver can operate ARM SBSA Generic Watchdog as a single stage
366	  or a two stages watchdog, it depends on the module parameter "action".
367
368	  Note: the maximum timeout in the two stages mode is half of that in
369	  the single stage mode.
370
371	  To compile this driver as module, choose M here: The module
372	  will be called sbsa_gwdt.
373
374config ARMADA_37XX_WATCHDOG
375	tristate "Armada 37xx watchdog"
376	depends on ARCH_MVEBU || COMPILE_TEST
377	select MFD_SYSCON
378	select WATCHDOG_CORE
379	help
380	   Say Y here to include support for the watchdog timer found on
381	   Marvell Armada 37xx SoCs.
382	   To compile this driver as a module, choose M here: the
383	   module will be called armada_37xx_wdt.
384
385config ASM9260_WATCHDOG
386	tristate "Alphascale ASM9260 watchdog"
387	depends on MACH_ASM9260 || COMPILE_TEST
388	depends on OF
389	select WATCHDOG_CORE
390	select RESET_CONTROLLER
391	help
392	  Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your
393	  system when the timeout is reached.
394
395config AT91RM9200_WATCHDOG
396	tristate "AT91RM9200 watchdog"
397	depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
398	help
399	  Watchdog timer embedded into AT91RM9200 chips. This will reboot your
400	  system when the timeout is reached.
401
402config AT91SAM9X_WATCHDOG
403	tristate "AT91SAM9X / AT91CAP9 watchdog"
404	depends on ARCH_AT91 || COMPILE_TEST
405	select WATCHDOG_CORE
406	help
407	  Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
408	  reboot your system when the timeout is reached.
409
410config SAMA5D4_WATCHDOG
411	tristate "Atmel SAMA5D4 Watchdog Timer"
412	depends on ARCH_AT91 || COMPILE_TEST
413	select WATCHDOG_CORE
414	help
415	  Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
416	  Its Watchdog Timer Mode Register can be written more than once.
417	  This will reboot your system when the timeout is reached.
418
419config CADENCE_WATCHDOG
420	tristate "Cadence Watchdog Timer"
421	depends on HAS_IOMEM
422	select WATCHDOG_CORE
423	help
424	  Say Y here if you want to include support for the watchdog
425	  timer in the Xilinx Zynq.
426
427config 21285_WATCHDOG
428	tristate "DC21285 watchdog"
429	depends on FOOTBRIDGE
430	help
431	  The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
432	  here if you wish to use this. Alternatively say M to compile the
433	  driver as a module, which will be called wdt285.
434
435	  This driver does not work on all machines. In particular, early CATS
436	  boards have hardware problems that will cause the machine to simply
437	  lock up if the watchdog fires.
438
439	  "If in doubt, leave it out" - say N.
440
441config 977_WATCHDOG
442	tristate "NetWinder WB83C977 watchdog"
443	depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
444	help
445	  Say Y here to include support for the WB977 watchdog included in
446	  NetWinder machines. Alternatively say M to compile the driver as
447	  a module, which will be called wdt977.
448
449	  Not sure? It's safe to say N.
450
451config FTWDT010_WATCHDOG
452	tristate "Faraday Technology FTWDT010 watchdog"
453	depends on ARM || COMPILE_TEST
454	select WATCHDOG_CORE
455	default ARCH_GEMINI
456	help
457	  Say Y here if to include support for the Faraday Technology
458	  FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
459	  family of devices.
460
461	  To compile this driver as a module, choose M here: the
462	  module will be called ftwdt010_wdt.
463
464config IXP4XX_WATCHDOG
465	tristate "IXP4xx Watchdog"
466	depends on ARCH_IXP4XX
467	help
468	  Say Y here if to include support for the watchdog timer
469	  in the Intel IXP4xx network processors. This driver can
470	  be built as a module by choosing M. The module will
471	  be called ixp4xx_wdt.
472
473	  Note: The internal IXP4xx watchdog does a soft CPU reset
474	  which doesn't reset any peripherals. There are circumstances
475	  where the watchdog will fail to reset the board correctly
476	  (e.g., if the boot ROM is in an unreadable state).
477
478	  Say N if you are unsure.
479
480config KS8695_WATCHDOG
481	tristate "KS8695 watchdog"
482	depends on ARCH_KS8695
483	help
484	  Watchdog timer embedded into KS8695 processor. This will reboot your
485	  system when the timeout is reached.
486
487config HAVE_S3C2410_WATCHDOG
488	bool
489	help
490	  This will include watchdog timer support for Samsung SoCs. If
491	  you want to include watchdog support for any machine, kindly
492	  select this in the respective mach-XXXX/Kconfig file.
493
494config S3C2410_WATCHDOG
495	tristate "S3C2410 Watchdog"
496	depends on HAVE_S3C2410_WATCHDOG || COMPILE_TEST
497	select WATCHDOG_CORE
498	select MFD_SYSCON if ARCH_EXYNOS
499	help
500	  Watchdog timer block in the Samsung SoCs. This will reboot
501	  the system when the timer expires with the watchdog enabled.
502
503	  The driver is limited by the speed of the system's PCLK
504	  signal, so with reasonably fast systems (PCLK around 50-66MHz)
505	  then watchdog intervals of over approximately 20seconds are
506	  unavailable.
507
508	  The driver can be built as a module by choosing M, and will
509	  be called s3c2410_wdt
510
511config SA1100_WATCHDOG
512	tristate "SA1100/PXA2xx watchdog"
513	depends on ARCH_SA1100 || ARCH_PXA
514	help
515	  Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
516	  reboot your system when timeout is reached.
517
518	  NOTE: once enabled, this timer cannot be disabled.
519
520	  To compile this driver as a module, choose M here: the
521	  module will be called sa1100_wdt.
522
523config DW_WATCHDOG
524	tristate "Synopsys DesignWare watchdog"
525	depends on HAS_IOMEM
526	select WATCHDOG_CORE
527	help
528	  Say Y here if to include support for the Synopsys DesignWare
529	  watchdog timer found in many chips.
530	  To compile this driver as a module, choose M here: the
531	  module will be called dw_wdt.
532
533config EP93XX_WATCHDOG
534	tristate "EP93xx Watchdog"
535	depends on ARCH_EP93XX || COMPILE_TEST
536	select WATCHDOG_CORE
537	help
538	  Say Y here if to include support for the watchdog timer
539	  embedded in the Cirrus Logic EP93xx family of devices.
540
541	  To compile this driver as a module, choose M here: the
542	  module will be called ep93xx_wdt.
543
544config OMAP_WATCHDOG
545	tristate "OMAP Watchdog"
546	depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
547	select WATCHDOG_CORE
548	help
549	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.  Say 'Y'
550	  here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
551
552config PNX4008_WATCHDOG
553	tristate "LPC32XX Watchdog"
554	depends on ARCH_LPC32XX
555	select WATCHDOG_CORE
556	help
557	  Say Y here if to include support for the watchdog timer
558	  in the LPC32XX processor.
559	  This driver can be built as a module by choosing M. The module
560	  will be called pnx4008_wdt.
561
562	  Say N if you are unsure.
563
564config IOP_WATCHDOG
565	tristate "IOP Watchdog"
566	depends on ARCH_IOP13XX
567	select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
568	help
569	  Say Y here if to include support for the watchdog timer
570	  in the Intel IOP3XX & IOP13XX I/O Processors.  This driver can
571	  be built as a module by choosing M. The module will
572	  be called iop_wdt.
573
574	  Note: The IOP13XX watchdog does an Internal Bus Reset which will
575	  affect both cores and the peripherals of the IOP.  The ATU-X
576	  and/or ATUe configuration registers will remain intact, but if
577	  operating as an Root Complex and/or Central Resource, the PCI-X
578	  and/or PCIe busses will also be reset.  THIS IS A VERY BIG HAMMER.
579
580config DAVINCI_WATCHDOG
581	tristate "DaVinci watchdog"
582	depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
583	select WATCHDOG_CORE
584	help
585	  Say Y here if to include support for the watchdog timer
586	  in the DaVinci DM644x/DM646x or Keystone processors.
587	  To compile this driver as a module, choose M here: the
588	  module will be called davinci_wdt.
589
590	  NOTE: once enabled, this timer cannot be disabled.
591	  Say N if you are unsure.
592
593config ORION_WATCHDOG
594	tristate "Orion watchdog"
595	depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || (COMPILE_TEST && !ARCH_EBSA110)
596	depends on ARM
597	select WATCHDOG_CORE
598	help
599	  Say Y here if to include support for the watchdog timer
600	  in the Marvell Orion5x and Kirkwood ARM SoCs.
601	  To compile this driver as a module, choose M here: the
602	  module will be called orion_wdt.
603
604config RN5T618_WATCHDOG
605	tristate "Ricoh RN5T618 watchdog"
606	depends on MFD_RN5T618 || COMPILE_TEST
607	select WATCHDOG_CORE
608	help
609	  If you say yes here you get support for watchdog on the Ricoh
610	  RN5T618 PMIC.
611
612	  This driver can also be built as a module.  If so, the module
613	  will be called rn5t618_wdt.
614
615config SUNXI_WATCHDOG
616	tristate "Allwinner SoCs watchdog support"
617	depends on ARCH_SUNXI || COMPILE_TEST
618	select WATCHDOG_CORE
619	help
620	  Say Y here to include support for the watchdog timer
621	  in Allwinner SoCs.
622	  To compile this driver as a module, choose M here: the
623	  module will be called sunxi_wdt.
624
625config COH901327_WATCHDOG
626	bool "ST-Ericsson COH 901 327 watchdog"
627	depends on ARCH_U300 || (ARM && COMPILE_TEST)
628	default y if MACH_U300
629	select WATCHDOG_CORE
630	help
631	  Say Y here to include Watchdog timer support for the
632	  watchdog embedded into the ST-Ericsson U300 series platforms.
633	  This watchdog is used to reset the system and thus cannot be
634	  compiled as a module.
635
636config NPCM7XX_WATCHDOG
637	tristate "Nuvoton NPCM750 watchdog"
638	depends on ARCH_NPCM || COMPILE_TEST
639	default y if ARCH_NPCM7XX
640	select WATCHDOG_CORE
641	help
642	  Say Y here to include Watchdog timer support for the
643	  watchdog embedded into the NPCM7xx.
644	  This watchdog is used to reset the system and thus cannot be
645	  compiled as a module.
646
647config TWL4030_WATCHDOG
648	tristate "TWL4030 Watchdog"
649	depends on TWL4030_CORE
650	select WATCHDOG_CORE
651	help
652	  Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
653	  watchdog timer support for TWL4030 chips.
654
655config STMP3XXX_RTC_WATCHDOG
656	tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
657	depends on RTC_DRV_STMP || COMPILE_TEST
658	select WATCHDOG_CORE
659	help
660	  Say Y here to include support for the watchdog timer inside
661	  the RTC for the STMP37XX/378X or i.MX23/28 SoC.
662	  To compile this driver as a module, choose M here: the
663	  module will be called stmp3xxx_rtc_wdt.
664
665config NUC900_WATCHDOG
666	tristate "Nuvoton NUC900 watchdog"
667	depends on ARCH_W90X900 || COMPILE_TEST
668	help
669	  Say Y here if to include support for the watchdog timer
670	  for the Nuvoton NUC900 series SoCs.
671	  To compile this driver as a module, choose M here: the
672	  module will be called nuc900_wdt.
673
674config TS4800_WATCHDOG
675	tristate "TS-4800 Watchdog"
676	depends on HAS_IOMEM && OF
677	depends on SOC_IMX51 || COMPILE_TEST
678	select WATCHDOG_CORE
679	select MFD_SYSCON
680	help
681	  Technologic Systems TS-4800 has watchdog timer implemented in
682	  an external FPGA. Say Y here if you want to support for the
683	  watchdog timer on TS-4800 board.
684
685config TS72XX_WATCHDOG
686	tristate "TS-72XX SBC Watchdog"
687	depends on MACH_TS72XX || COMPILE_TEST
688	help
689	  Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
690	  watchdog timer implemented in a external CPLD chip. Say Y here
691	  if you want to support for the watchdog timer on TS-72XX boards.
692
693	  To compile this driver as a module, choose M here: the
694	  module will be called ts72xx_wdt.
695
696config MAX63XX_WATCHDOG
697	tristate "Max63xx watchdog"
698	depends on HAS_IOMEM
699	select WATCHDOG_CORE
700	help
701	  Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
702
703config MAX77620_WATCHDOG
704	tristate "Maxim Max77620 Watchdog Timer"
705	depends on MFD_MAX77620 || COMPILE_TEST
706	help
707	 This is the driver for the Max77620 watchdog timer.
708	 Say 'Y' here to enable the watchdog timer support for
709	 MAX77620 chips. To compile this driver as a module,
710	 choose M here: the module will be called max77620_wdt.
711
712config IMX2_WDT
713	tristate "IMX2+ Watchdog"
714	depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
715	select REGMAP_MMIO
716	select WATCHDOG_CORE
717	help
718	  This is the driver for the hardware watchdog
719	  on the Freescale IMX2 and later processors.
720	  If you have one of these processors and wish to have
721	  watchdog support enabled, say Y, otherwise say N.
722
723	  To compile this driver as a module, choose M here: the
724	  module will be called imx2_wdt.
725
726config IMX_SC_WDT
727	tristate "IMX SC Watchdog"
728	depends on HAVE_ARM_SMCCC
729	depends on IMX_SCU
730	select WATCHDOG_CORE
731	help
732	  This is the driver for the system controller watchdog
733	  on the NXP i.MX SoCs with system controller inside, the
734	  watchdog driver will call ARM SMC API and trap into
735	  ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
736	  will request system controller to execute the operations.
737	  If you have one of these processors and wish to have
738	  watchdog support enabled, say Y, otherwise say N.
739
740	  To compile this driver as a module, choose M here: the
741	  module will be called imx_sc_wdt.
742
743config UX500_WATCHDOG
744	tristate "ST-Ericsson Ux500 watchdog"
745	depends on MFD_DB8500_PRCMU
746	select WATCHDOG_CORE
747	default y
748	help
749	  Say Y here to include Watchdog timer support for the watchdog
750	  existing in the prcmu of ST-Ericsson Ux500 series platforms.
751
752	  To compile this driver as a module, choose M here: the
753	  module will be called ux500_wdt.
754
755config RETU_WATCHDOG
756	tristate "Retu watchdog"
757	depends on MFD_RETU
758	select WATCHDOG_CORE
759	help
760	  Retu watchdog driver for Nokia Internet Tablets (770, N800,
761	  N810). At least on N800 the watchdog cannot be disabled, so
762	  this driver is essential and you should enable it.
763
764	  To compile this driver as a module, choose M here: the
765	  module will be called retu_wdt.
766
767config MOXART_WDT
768	tristate "MOXART watchdog"
769	depends on ARCH_MOXART || COMPILE_TEST
770	help
771	  Say Y here to include Watchdog timer support for the watchdog
772	  existing on the MOXA ART SoC series platforms.
773
774	  To compile this driver as a module, choose M here: the
775	  module will be called moxart_wdt.
776
777config SIRFSOC_WATCHDOG
778	tristate "SiRFSOC watchdog"
779	depends on ARCH_SIRF || COMPILE_TEST
780	select WATCHDOG_CORE
781	default y
782	help
783	  Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
784	  the watchdog triggers the system will be reset.
785
786config ST_LPC_WATCHDOG
787	tristate "STMicroelectronics LPC Watchdog"
788	depends on ARCH_STI || COMPILE_TEST
789	depends on OF
790	select WATCHDOG_CORE
791	help
792	  Say Y here to include STMicroelectronics Low Power Controller
793	  (LPC) based Watchdog timer support.
794
795	  To compile this driver as a module, choose M here: the
796	  module will be called st_lpc_wdt.
797
798config TEGRA_WATCHDOG
799	tristate "Tegra watchdog"
800	depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
801	select WATCHDOG_CORE
802	help
803	  Say Y here to include support for the watchdog timer
804	  embedded in NVIDIA Tegra SoCs.
805
806	  To compile this driver as a module, choose M here: the
807	  module will be called tegra_wdt.
808
809config QCOM_WDT
810	tristate "QCOM watchdog"
811	depends on HAS_IOMEM
812	depends on ARCH_QCOM || COMPILE_TEST
813	select WATCHDOG_CORE
814	help
815	  Say Y here to include Watchdog timer support for the watchdog found
816	  on QCOM chipsets.  Currently supported targets are the MSM8960,
817	  APQ8064, and IPQ8064.
818
819	  To compile this driver as a module, choose M here: the
820	  module will be called qcom_wdt.
821
822config MESON_GXBB_WATCHDOG
823	tristate "Amlogic Meson GXBB SoCs watchdog support"
824	depends on ARCH_MESON || COMPILE_TEST
825	select WATCHDOG_CORE
826	help
827	  Say Y here to include support for the watchdog timer
828	  in Amlogic Meson GXBB SoCs.
829	  To compile this driver as a module, choose M here: the
830	  module will be called meson_gxbb_wdt.
831
832config MESON_WATCHDOG
833	tristate "Amlogic Meson SoCs watchdog support"
834	depends on ARCH_MESON || COMPILE_TEST
835	select WATCHDOG_CORE
836	help
837	  Say Y here to include support for the watchdog timer
838	  in Amlogic Meson SoCs.
839	  To compile this driver as a module, choose M here: the
840	  module will be called meson_wdt.
841
842config MEDIATEK_WATCHDOG
843	tristate "Mediatek SoCs watchdog support"
844	depends on ARCH_MEDIATEK || COMPILE_TEST
845	select WATCHDOG_CORE
846	help
847	  Say Y here to include support for the watchdog timer
848	  in Mediatek SoCs.
849	  To compile this driver as a module, choose M here: the
850	  module will be called mtk_wdt.
851
852config DIGICOLOR_WATCHDOG
853	tristate "Conexant Digicolor SoCs watchdog support"
854	depends on ARCH_DIGICOLOR || COMPILE_TEST
855	select WATCHDOG_CORE
856	help
857	  Say Y here to include support for the watchdog timer
858	  in Conexant Digicolor SoCs.
859	  To compile this driver as a module, choose M here: the
860	  module will be called digicolor_wdt.
861
862config LPC18XX_WATCHDOG
863	tristate "LPC18xx/43xx Watchdog"
864	depends on ARCH_LPC18XX || COMPILE_TEST
865	depends on HAS_IOMEM
866	select WATCHDOG_CORE
867	help
868	  Say Y here if to include support for the watchdog timer
869	  in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
870	  processors.
871	  To compile this driver as a module, choose M here: the
872	  module will be called lpc18xx_wdt.
873
874config ATLAS7_WATCHDOG
875	tristate "CSRatlas7 watchdog"
876	depends on ARCH_ATLAS7 || COMPILE_TEST
877	help
878	  Say Y here to include Watchdog timer support for the watchdog
879	  existing on the CSRatlas7 series platforms.
880
881	  To compile this driver as a module, choose M here: the
882	  module will be called atlas7_wdt.
883
884config RENESAS_WDT
885	tristate "Renesas WDT Watchdog"
886	depends on ARCH_RENESAS || COMPILE_TEST
887	select WATCHDOG_CORE
888	help
889	  This driver adds watchdog support for the integrated watchdogs in the
890	  Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
891
892config RENESAS_RZAWDT
893	tristate "Renesas RZ/A WDT Watchdog"
894	depends on ARCH_RENESAS || COMPILE_TEST
895	select WATCHDOG_CORE
896	help
897	  This driver adds watchdog support for the integrated watchdogs in the
898	  Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
899
900config ASPEED_WATCHDOG
901	tristate "Aspeed BMC watchdog support"
902	depends on ARCH_ASPEED || COMPILE_TEST
903	select WATCHDOG_CORE
904	help
905	  Say Y here to include support for the watchdog timer
906	  in Aspeed BMC SoCs.
907
908	  This driver is required to reboot the SoC.
909
910	  To compile this driver as a module, choose M here: the
911	  module will be called aspeed_wdt.
912
913config ZX2967_WATCHDOG
914	tristate "ZTE zx2967 SoCs watchdog support"
915	depends on ARCH_ZX
916	select WATCHDOG_CORE
917	help
918	  Say Y here to include support for the watchdog timer
919	  in ZTE zx2967 SoCs.
920	  To compile this driver as a module, choose M here: the
921	  module will be called zx2967_wdt.
922
923config STM32_WATCHDOG
924	tristate "STM32 Independent WatchDoG (IWDG) support"
925	depends on ARCH_STM32
926	select WATCHDOG_CORE
927	default y
928	help
929	  Say Y here to include support for the watchdog timer
930	  in stm32 SoCs.
931
932	  To compile this driver as a module, choose M here: the
933	  module will be called stm32_iwdg.
934
935config STPMIC1_WATCHDOG
936	tristate "STPMIC1 PMIC watchdog support"
937	depends on MFD_STPMIC1
938	select WATCHDOG_CORE
939	help
940	  Say Y here to include watchdog support embedded into STPMIC1 PMIC.
941	  If the watchdog timer expires, stpmic1 will shut down all its power
942	  supplies.
943
944	  To compile this driver as a module, choose M here: the
945	  module will be called spmic1_wdt.
946
947config UNIPHIER_WATCHDOG
948	tristate "UniPhier watchdog support"
949	depends on ARCH_UNIPHIER || COMPILE_TEST
950	depends on OF && MFD_SYSCON
951	select WATCHDOG_CORE
952	help
953	  Say Y here to include support watchdog timer embedded
954	  into the UniPhier system.
955
956	  To compile this driver as a module, choose M here: the
957	  module will be called uniphier_wdt.
958
959config RTD119X_WATCHDOG
960	bool "Realtek RTD119x/RTD129x watchdog support"
961	depends on ARCH_REALTEK || COMPILE_TEST
962	depends on OF
963	select WATCHDOG_CORE
964	default ARCH_REALTEK
965	help
966	  Say Y here to include support for the watchdog timer in
967	  Realtek RTD1295 SoCs.
968
969config SPRD_WATCHDOG
970	tristate "Spreadtrum watchdog support"
971	depends on ARCH_SPRD || COMPILE_TEST
972	select WATCHDOG_CORE
973	help
974	  Say Y here to include watchdog timer supported
975	  by Spreadtrum system.
976
977config PM8916_WATCHDOG
978	tristate "QCOM PM8916 pmic watchdog"
979	depends on OF && MFD_SPMI_PMIC
980	select WATCHDOG_CORE
981	help
982	  Say Y here to include support watchdog timer embedded into the
983	  pm8916 module.
984
985# X86 (i386 + ia64 + x86_64) Architecture
986
987config ACQUIRE_WDT
988	tristate "Acquire SBC Watchdog Timer"
989	depends on X86
990	---help---
991	  This is the driver for the hardware watchdog on Single Board
992	  Computers produced by Acquire Inc (and others). This watchdog
993	  simply watches your kernel to make sure it doesn't freeze, and if
994	  it does, it reboots your computer after a certain amount of time.
995
996	  To compile this driver as a module, choose M here: the
997	  module will be called acquirewdt.
998
999	  Most people will say N.
1000
1001config ADVANTECH_WDT
1002	tristate "Advantech SBC Watchdog Timer"
1003	depends on X86
1004	help
1005	  If you are configuring a Linux kernel for the Advantech single-board
1006	  computer, say `Y' here to support its built-in watchdog timer
1007	  feature. More information can be found at
1008	  <http://www.advantech.com.tw/products/>
1009
1010config ALIM1535_WDT
1011	tristate "ALi M1535 PMU Watchdog Timer"
1012	depends on X86 && PCI
1013	---help---
1014	  This is the driver for the hardware watchdog on the ALi M1535 PMU.
1015
1016	  To compile this driver as a module, choose M here: the
1017	  module will be called alim1535_wdt.
1018
1019	  Most people will say N.
1020
1021config ALIM7101_WDT
1022	tristate "ALi M7101 PMU Computer Watchdog"
1023	depends on PCI
1024	help
1025	  This is the driver for the hardware watchdog on the ALi M7101 PMU
1026	  as used in the x86 Cobalt servers and also found in some
1027	  SPARC Netra servers too.
1028
1029	  To compile this driver as a module, choose M here: the
1030	  module will be called alim7101_wdt.
1031
1032	  Most people will say N.
1033
1034config EBC_C384_WDT
1035	tristate "WinSystems EBC-C384 Watchdog Timer"
1036	depends on X86
1037	select ISA_BUS_API
1038	select WATCHDOG_CORE
1039	help
1040	  Enables watchdog timer support for the watchdog timer on the
1041	  WinSystems EBC-C384 motherboard. The timeout may be configured via
1042	  the timeout module parameter.
1043
1044config F71808E_WDT
1045	tristate "Fintek F718xx, F818xx Super I/O Watchdog"
1046	depends on X86
1047	help
1048	  This is the driver for the hardware watchdog on the Fintek F71808E,
1049	  F71862FG, F71868, F71869, F71882FG, F71889FG, F81865 and F81866
1050	  Super I/O controllers.
1051
1052	  You can compile this driver directly into the kernel, or use
1053	  it as a module.  The module will be called f71808e_wdt.
1054
1055config SP5100_TCO
1056	tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
1057	depends on X86 && PCI
1058	select WATCHDOG_CORE
1059	---help---
1060	  Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
1061	  (Total Cost of Ownership) timer is a watchdog timer that will reboot
1062	  the machine after its expiration. The expiration time can be
1063	  configured with the "heartbeat" parameter.
1064
1065	  To compile this driver as a module, choose M here: the
1066	  module will be called sp5100_tco.
1067
1068config GEODE_WDT
1069	tristate "AMD Geode CS5535/CS5536 Watchdog"
1070	depends on CS5535_MFGPT
1071	help
1072	  This driver enables a watchdog capability built into the
1073	  CS5535/CS5536 companion chips for the AMD Geode GX and LX
1074	  processors.  This watchdog watches your kernel to make sure
1075	  it doesn't freeze, and if it does, it reboots your computer after
1076	  a certain amount of time.
1077
1078	  You can compile this driver directly into the kernel, or use
1079	  it as a module.  The module will be called geodewdt.
1080
1081config SC520_WDT
1082	tristate "AMD Elan SC520 processor Watchdog"
1083	depends on MELAN || COMPILE_TEST
1084	help
1085	  This is the driver for the hardware watchdog built in to the
1086	  AMD "Elan" SC520 microcomputer commonly used in embedded systems.
1087	  This watchdog simply watches your kernel to make sure it doesn't
1088	  freeze, and if it does, it reboots your computer after a certain
1089	  amount of time.
1090
1091	  You can compile this driver directly into the kernel, or use
1092	  it as a module.  The module will be called sc520_wdt.
1093
1094config SBC_FITPC2_WATCHDOG
1095	tristate "Compulab SBC-FITPC2 watchdog"
1096	depends on X86
1097	---help---
1098	  This is the driver for the built-in watchdog timer on the fit-PC2,
1099	  fit-PC2i, CM-iAM single-board computers made by Compulab.
1100
1101	  It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
1102	  When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
1103
1104	  Entering BIOS setup temporary disables watchdog operation regardless to current state,
1105	  so system will not be restarted while user in BIOS setup.
1106
1107	  Once watchdog was enabled the system will be restarted every
1108	  "Watchdog Timer Value" period, so to prevent it user can restart or
1109	  disable the watchdog.
1110
1111	  To compile this driver as a module, choose M here: the
1112	  module will be called sbc_fitpc2_wdt.
1113
1114	  Most people will say N.
1115
1116config EUROTECH_WDT
1117	tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1118	depends on X86
1119	help
1120	  Enable support for the watchdog timer on the Eurotech CPU-1220 and
1121	  CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
1122	  information are at <http://www.eurotech.it/>.
1123
1124config IB700_WDT
1125	tristate "IB700 SBC Watchdog Timer"
1126	depends on X86
1127	---help---
1128	  This is the driver for the hardware watchdog on the IB700 Single
1129	  Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
1130	  simply watches your kernel to make sure it doesn't freeze, and if
1131	  it does, it reboots your computer after a certain amount of time.
1132
1133	  This driver is like the WDT501 driver but for slightly different hardware.
1134
1135	  To compile this driver as a module, choose M here: the
1136	  module will be called ib700wdt.
1137
1138	  Most people will say N.
1139
1140config IBMASR
1141	tristate "IBM Automatic Server Restart"
1142	depends on X86
1143	help
1144	  This is the driver for the IBM Automatic Server Restart watchdog
1145	  timer built-in into some eServer xSeries machines.
1146
1147	  To compile this driver as a module, choose M here: the
1148	  module will be called ibmasr.
1149
1150config WAFER_WDT
1151	tristate "ICP Single Board Computer Watchdog Timer"
1152	depends on X86
1153	help
1154	  This is a driver for the hardware watchdog on the ICP Single
1155	  Board Computer. This driver is working on (at least) the following
1156	  IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1157
1158	  To compile this driver as a module, choose M here: the
1159	  module will be called wafer5823wdt.
1160
1161config I6300ESB_WDT
1162	tristate "Intel 6300ESB Timer/Watchdog"
1163	depends on PCI
1164	select WATCHDOG_CORE
1165	---help---
1166	  Hardware driver for the watchdog timer built into the Intel
1167	  6300ESB controller hub.
1168
1169	  To compile this driver as a module, choose M here: the
1170	  module will be called i6300esb.
1171
1172config IE6XX_WDT
1173	tristate "Intel Atom E6xx Watchdog"
1174	depends on X86 && PCI
1175	select WATCHDOG_CORE
1176	select MFD_CORE
1177	select LPC_SCH
1178	---help---
1179	  Hardware driver for the watchdog timer built into the Intel
1180	  Atom E6XX (TunnelCreek) processor.
1181
1182	  To compile this driver as a module, choose M here: the
1183	  module will be called ie6xx_wdt.
1184
1185config INTEL_SCU_WATCHDOG
1186	bool "Intel SCU Watchdog for Mobile Platforms"
1187	depends on X86_INTEL_MID
1188	---help---
1189	  Hardware driver for the watchdog time built into the Intel SCU
1190	  for Intel Mobile Platforms.
1191
1192	  To compile this driver as a module, choose M here.
1193
1194config INTEL_MID_WATCHDOG
1195	tristate "Intel MID Watchdog Timer"
1196	depends on X86_INTEL_MID
1197	select WATCHDOG_CORE
1198	---help---
1199	  Watchdog timer driver built into the Intel SCU for Intel MID
1200	  Platforms.
1201
1202	  This driver currently supports only the watchdog evolution
1203	  implementation in SCU, available for Merrifield generation.
1204
1205	  To compile this driver as a module, choose M here.
1206
1207config ITCO_WDT
1208	tristate "Intel TCO Timer/Watchdog"
1209	depends on (X86 || IA64) && PCI
1210	select WATCHDOG_CORE
1211	depends on I2C || I2C=n
1212	select LPC_ICH if !EXPERT
1213	select I2C_I801 if !EXPERT && I2C
1214	---help---
1215	  Hardware driver for the intel TCO timer based watchdog devices.
1216	  These drivers are included in the Intel 82801 I/O Controller
1217	  Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1218	  controller hub.
1219
1220	  The TCO (Total Cost of Ownership) timer is a watchdog timer
1221	  that will reboot the machine after its second expiration. The
1222	  expiration time can be configured with the "heartbeat" parameter.
1223
1224	  On some motherboards the driver may fail to reset the chipset's
1225	  NO_REBOOT flag which prevents the watchdog from rebooting the
1226	  machine. If this is the case you will get a kernel message like
1227	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1228
1229	  To compile this driver as a module, choose M here: the
1230	  module will be called iTCO_wdt.
1231
1232config ITCO_VENDOR_SUPPORT
1233	bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1234	depends on ITCO_WDT
1235	---help---
1236	  Add vendor specific support to the intel TCO timer based watchdog
1237	  devices. At this moment we only have additional support for some
1238	  SuperMicro Inc. motherboards.
1239
1240config IT8712F_WDT
1241	tristate "IT8712F (Smart Guardian) Watchdog Timer"
1242	depends on X86
1243	---help---
1244	  This is the driver for the built-in watchdog timer on the IT8712F
1245	  Super I/0 chipset used on many motherboards.
1246
1247	  If the driver does not work, then make sure that the game port in
1248	  the BIOS is enabled.
1249
1250	  To compile this driver as a module, choose M here: the
1251	  module will be called it8712f_wdt.
1252
1253config IT87_WDT
1254	tristate "IT87 Watchdog Timer"
1255	depends on X86
1256	select WATCHDOG_CORE
1257	---help---
1258	  This is the driver for the hardware watchdog on the ITE IT8607,
1259	  IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1260	  IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1261	  IT8783 Super I/O chips.
1262
1263	  This watchdog simply watches your kernel to make sure it doesn't
1264	  freeze, and if it does, it reboots your computer after a certain
1265	  amount of time.
1266
1267	  To compile this driver as a module, choose M here: the module will
1268	  be called it87_wdt.
1269
1270config HP_WATCHDOG
1271	tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1272	select WATCHDOG_CORE
1273	depends on X86 && PCI
1274	help
1275	  A software monitoring watchdog and NMI handling driver. This driver
1276	  will detect lockups and provide a stack trace. This is a driver that
1277	  will only load on an HP ProLiant system with a minimum of iLO2 support.
1278	  To compile this driver as a module, choose M here: the module will be
1279	  called hpwdt.
1280
1281config HPWDT_NMI_DECODING
1282	bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1283	depends on HP_WATCHDOG
1284	default y
1285	help
1286	  Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1287	  "Generate NMI to System" virtual button.  When an NMI is claimed
1288	  by the driver, panic is called.
1289
1290config KEMPLD_WDT
1291	tristate "Kontron COM Watchdog Timer"
1292	depends on MFD_KEMPLD
1293	select WATCHDOG_CORE
1294	help
1295	  Support for the PLD watchdog on some Kontron ETX and COMexpress
1296	  (ETXexpress) modules
1297
1298	  This driver can also be built as a module. If so, the module will be
1299	  called kempld_wdt.
1300
1301config SC1200_WDT
1302	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1303	depends on X86
1304	help
1305	  This is a driver for National Semiconductor PC87307/PC97307 hardware
1306	  watchdog cards as found on the SC1200. This watchdog is mainly used
1307	  for power management purposes and can be used to power down the device
1308	  during inactivity periods (includes interrupt activity monitoring).
1309
1310	  To compile this driver as a module, choose M here: the
1311	  module will be called sc1200wdt.
1312
1313	  Most people will say N.
1314
1315config SCx200_WDT
1316	tristate "National Semiconductor SCx200 Watchdog"
1317	depends on SCx200 && PCI
1318	help
1319	  Enable the built-in watchdog timer support on the National
1320	  Semiconductor SCx200 processors.
1321
1322	  If compiled as a module, it will be called scx200_wdt.
1323
1324config PC87413_WDT
1325	tristate "NS PC87413 watchdog"
1326	depends on X86
1327	---help---
1328	  This is the driver for the hardware watchdog on the PC87413 chipset
1329	  This watchdog simply watches your kernel to make sure it doesn't
1330	  freeze, and if it does, it reboots your computer after a certain
1331	  amount of time.
1332
1333	  To compile this driver as a module, choose M here: the
1334	  module will be called pc87413_wdt.
1335
1336	  Most people will say N.
1337
1338config NV_TCO
1339	tristate "nVidia TCO Timer/Watchdog"
1340	depends on X86 && PCI
1341	---help---
1342	  Hardware driver for the TCO timer built into the nVidia Hub family
1343	  (such as the MCP51).  The TCO (Total Cost of Ownership) timer is a
1344	  watchdog timer that will reboot the machine after its second
1345	  expiration. The expiration time can be configured with the
1346	  "heartbeat" parameter.
1347
1348	  On some motherboards the driver may fail to reset the chipset's
1349	  NO_REBOOT flag which prevents the watchdog from rebooting the
1350	  machine. If this is the case you will get a kernel message like
1351	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1352
1353	  To compile this driver as a module, choose M here: the
1354	  module will be called nv_tco.
1355
1356config RDC321X_WDT
1357	tristate "RDC R-321x SoC watchdog"
1358	depends on X86_RDC321X || COMPILE_TEST
1359	depends on PCI
1360	help
1361	  This is the driver for the built in hardware watchdog
1362	  in the RDC R-321x SoC.
1363
1364	  To compile this driver as a module, choose M here: the
1365	  module will be called rdc321x_wdt.
1366
1367config 60XX_WDT
1368	tristate "SBC-60XX Watchdog Timer"
1369	depends on X86
1370	help
1371	  This driver can be used with the watchdog timer found on some
1372	  single board computers, namely the 6010 PII based computer.
1373	  It may well work with other cards.  It reads port 0x443 to enable
1374	  and re-set the watchdog timer, and reads port 0x45 to disable
1375	  the watchdog.  If you have a card that behave in similar ways,
1376	  you can probably make this driver work with your card as well.
1377
1378	  You can compile this driver directly into the kernel, or use
1379	  it as a module.  The module will be called sbc60xxwdt.
1380
1381config SBC8360_WDT
1382	tristate "SBC8360 Watchdog Timer"
1383	depends on X86_32
1384	---help---
1385
1386	  This is the driver for the hardware watchdog on the SBC8360 Single
1387	  Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1388
1389	  To compile this driver as a module, choose M here: the
1390	  module will be called sbc8360.
1391
1392	  Most people will say N.
1393
1394config SBC7240_WDT
1395	tristate "SBC Nano 7240 Watchdog Timer"
1396	depends on X86_32 && !UML
1397	---help---
1398	  This is the driver for the hardware watchdog found on the IEI
1399	  single board computers EPIC Nano 7240 (and likely others). This
1400	  watchdog simply watches your kernel to make sure it doesn't freeze,
1401	  and if it does, it reboots your computer after a certain amount of
1402	  time.
1403
1404	  To compile this driver as a module, choose M here: the
1405	  module will be called sbc7240_wdt.
1406
1407config CPU5_WDT
1408	tristate "SMA CPU5 Watchdog"
1409	depends on X86
1410	---help---
1411	  TBD.
1412	  To compile this driver as a module, choose M here: the
1413	  module will be called cpu5wdt.
1414
1415config SMSC_SCH311X_WDT
1416	tristate "SMSC SCH311X Watchdog Timer"
1417	depends on X86
1418	---help---
1419	  This is the driver for the hardware watchdog timer on the
1420	  SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1421	  (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1422	  serial ports).
1423
1424	  To compile this driver as a module, choose M here: the
1425	  module will be called sch311x_wdt.
1426
1427config SMSC37B787_WDT
1428	tristate "Winbond SMsC37B787 Watchdog Timer"
1429	depends on X86
1430	---help---
1431	  This is the driver for the hardware watchdog component on the
1432	  Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1433	  from Vision Systems and maybe others.
1434
1435	  This watchdog simply watches your kernel to make sure it doesn't
1436	  freeze, and if it does, it reboots your computer after a certain
1437	  amount of time.
1438
1439	  Usually a userspace daemon will notify the kernel WDT driver that
1440	  userspace is still alive, at regular intervals.
1441
1442	  To compile this driver as a module, choose M here: the
1443	  module will be called smsc37b787_wdt.
1444
1445	  Most people will say N.
1446
1447config TQMX86_WDT
1448	tristate "TQ-Systems TQMX86 Watchdog Timer"
1449	depends on X86
1450	help
1451	This is the driver for the hardware watchdog timer in the TQMX86 IO
1452	controller found on some of their ComExpress Modules.
1453
1454	To compile this driver as a module, choose M here; the module
1455	will be called tqmx86_wdt.
1456
1457	Most people will say N.
1458
1459config VIA_WDT
1460	tristate "VIA Watchdog Timer"
1461	depends on X86 && PCI
1462	select WATCHDOG_CORE
1463	---help---
1464	This is the driver for the hardware watchdog timer on VIA
1465	southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1466
1467	To compile this driver as a module, choose M here; the module
1468	will be called via_wdt.
1469
1470	Most people will say N.
1471
1472config W83627HF_WDT
1473	tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1474	depends on X86
1475	select WATCHDOG_CORE
1476	---help---
1477	  This is the driver for the hardware watchdog on the following
1478	  Super I/O chips.
1479		W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1480		W83637HF
1481		W83667HG/HG-B
1482		W83687THF
1483		W83697HF
1484		W83697UG
1485		NCT6775
1486		NCT6776
1487		NCT6779
1488		NCT6791
1489		NCT6792
1490		NCT6102D/04D/06D
1491
1492	  This watchdog simply watches your kernel to make sure it doesn't
1493	  freeze, and if it does, it reboots your computer after a certain
1494	  amount of time.
1495
1496	  To compile this driver as a module, choose M here: the
1497	  module will be called w83627hf_wdt.
1498
1499	  Most people will say N.
1500
1501config W83877F_WDT
1502	tristate "W83877F (EMACS) Watchdog Timer"
1503	depends on X86
1504	---help---
1505	  This is the driver for the hardware watchdog on the W83877F chipset
1506	  as used in EMACS PC-104 motherboards (and likely others).  This
1507	  watchdog simply watches your kernel to make sure it doesn't freeze,
1508	  and if it does, it reboots your computer after a certain amount of
1509	  time.
1510
1511	  To compile this driver as a module, choose M here: the
1512	  module will be called w83877f_wdt.
1513
1514	  Most people will say N.
1515
1516config W83977F_WDT
1517	tristate "W83977F (PCM-5335) Watchdog Timer"
1518	depends on X86
1519	---help---
1520	  This is the driver for the hardware watchdog on the W83977F I/O chip
1521	  as used in AAEON's PCM-5335 SBC (and likely others).  This
1522	  watchdog simply watches your kernel to make sure it doesn't freeze,
1523	  and if it does, it reboots your computer after a certain amount of
1524	  time.
1525
1526	  To compile this driver as a module, choose M here: the
1527	  module will be called w83977f_wdt.
1528
1529config MACHZ_WDT
1530	tristate "ZF MachZ Watchdog"
1531	depends on X86
1532	---help---
1533	  If you are using a ZF Micro MachZ processor, say Y here, otherwise
1534	  N.  This is the driver for the watchdog timer built-in on that
1535	  processor using ZF-Logic interface.  This watchdog simply watches
1536	  your kernel to make sure it doesn't freeze, and if it does, it
1537	  reboots your computer after a certain amount of time.
1538
1539	  To compile this driver as a module, choose M here: the
1540	  module will be called machzwd.
1541
1542config SBC_EPX_C3_WATCHDOG
1543	tristate "Winsystems SBC EPX-C3 watchdog"
1544	depends on X86
1545	---help---
1546	  This is the driver for the built-in watchdog timer on the EPX-C3
1547	  Single-board computer made by Winsystems, Inc.
1548
1549	  *Note*: This hardware watchdog is not probeable and thus there
1550	  is no way to know if writing to its IO address will corrupt
1551	  your system or have any real effect.  The only way to be sure
1552	  that this driver does what you want is to make sure you
1553	  are running it on an EPX-C3 from Winsystems with the watchdog
1554	  timer at IO address 0x1ee and 0x1ef.  It will write to both those
1555	  IO ports.  Basically, the assumption is made that if you compile
1556	  this driver into your kernel and/or load it as a module, that you
1557	  know what you are doing and that you are in fact running on an
1558	  EPX-C3 board!
1559
1560	  To compile this driver as a module, choose M here: the
1561	  module will be called sbc_epx_c3.
1562
1563config INTEL_MEI_WDT
1564	tristate "Intel MEI iAMT Watchdog"
1565	depends on INTEL_MEI && X86
1566	select WATCHDOG_CORE
1567	---help---
1568	  A device driver for the Intel MEI iAMT watchdog.
1569
1570	  The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1571	  Whenever the OS hangs or crashes, iAMT will send an event
1572	  to any subscriber to this event. The watchdog doesn't reset the
1573	  the platform.
1574
1575	  To compile this driver as a module, choose M here:
1576	  the module will be called mei_wdt.
1577
1578config NI903X_WDT
1579	tristate "NI 903x/913x Watchdog"
1580	depends on X86 && ACPI
1581	select WATCHDOG_CORE
1582	---help---
1583	  This is the driver for the watchdog timer on the National Instruments
1584	  903x/913x real-time controllers.
1585
1586	  To compile this driver as a module, choose M here: the module will be
1587	  called ni903x_wdt.
1588
1589config NIC7018_WDT
1590	tristate "NIC7018 Watchdog"
1591	depends on X86 && ACPI
1592	select WATCHDOG_CORE
1593	---help---
1594	  Support for National Instruments NIC7018 Watchdog.
1595
1596	  To compile this driver as a module, choose M here: the module will be
1597	  called nic7018_wdt.
1598
1599# M68K Architecture
1600
1601config M54xx_WATCHDOG
1602	tristate "MCF54xx watchdog support"
1603	depends on M548x
1604	help
1605	  To compile this driver as a module, choose M here: the
1606	  module will be called m54xx_wdt.
1607
1608# MicroBlaze Architecture
1609
1610# MIPS Architecture
1611
1612config ATH79_WDT
1613	tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1614	depends on ATH79 || (ARM && COMPILE_TEST)
1615	help
1616	  Hardware driver for the built-in watchdog timer on the Atheros
1617	  AR71XX/AR724X/AR913X SoCs.
1618
1619config BCM47XX_WDT
1620	tristate "Broadcom BCM47xx Watchdog Timer"
1621	depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1622	select WATCHDOG_CORE
1623	help
1624	  Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1625
1626config RC32434_WDT
1627	tristate "IDT RC32434 SoC Watchdog Timer"
1628	depends on MIKROTIK_RB532
1629	help
1630	  Hardware driver for the IDT RC32434 SoC built-in
1631	  watchdog timer.
1632
1633	  To compile this driver as a module, choose M here: the
1634	  module will be called rc32434_wdt.
1635
1636config INDYDOG
1637	tristate "Indy/I2 Hardware Watchdog"
1638	depends on SGI_HAS_INDYDOG
1639	help
1640	  Hardware driver for the Indy's/I2's watchdog. This is a
1641	  watchdog timer that will reboot the machine after a 60 second
1642	  timer expired and no process has written to /dev/watchdog during
1643	  that time.
1644
1645config JZ4740_WDT
1646	tristate "Ingenic jz4740 SoC hardware watchdog"
1647	depends on MACH_JZ4740 || MACH_JZ4780
1648	select WATCHDOG_CORE
1649	help
1650	  Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1651
1652config WDT_MTX1
1653	tristate "MTX-1 Hardware Watchdog"
1654	depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1655	help
1656	  Hardware driver for the MTX-1 boards. This is a watchdog timer that
1657	  will reboot the machine after a 100 seconds timer expired.
1658
1659config PNX833X_WDT
1660	tristate "PNX833x Hardware Watchdog"
1661	depends on SOC_PNX8335
1662	depends on BROKEN
1663	help
1664	  Hardware driver for the PNX833x's watchdog. This is a
1665	  watchdog timer that will reboot the machine after a programmable
1666	  timer has expired and no process has written to /dev/watchdog during
1667	  that time.
1668
1669config SIBYTE_WDOG
1670	tristate "Sibyte SoC hardware watchdog"
1671	depends on CPU_SB1 || (MIPS && COMPILE_TEST)
1672	help
1673	  Watchdog driver for the built in watchdog hardware in Sibyte
1674	  SoC processors.  There are apparently two watchdog timers
1675	  on such processors; this driver supports only the first one,
1676	  because currently Linux only supports exporting one watchdog
1677	  to userspace.
1678
1679	  To compile this driver as a loadable module, choose M here.
1680	  The module will be called sb_wdog.
1681
1682config AR7_WDT
1683	tristate "TI AR7 Watchdog Timer"
1684	depends on AR7 || (MIPS && COMPILE_TEST)
1685	help
1686	  Hardware driver for the TI AR7 Watchdog Timer.
1687
1688config TXX9_WDT
1689	tristate "Toshiba TXx9 Watchdog Timer"
1690	depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
1691	select WATCHDOG_CORE
1692	help
1693	  Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1694
1695config OCTEON_WDT
1696	tristate "Cavium OCTEON SOC family Watchdog Timer"
1697	depends on CAVIUM_OCTEON_SOC
1698	default y
1699	select WATCHDOG_CORE
1700	select EXPORT_UASM if OCTEON_WDT = m
1701	help
1702	  Hardware driver for OCTEON's on chip watchdog timer.
1703	  Enables the watchdog for all cores running Linux. It
1704	  installs a NMI handler and pokes the watchdog based on an
1705	  interrupt.  On first expiration of the watchdog, the
1706	  interrupt handler pokes it.  The second expiration causes an
1707	  NMI that prints a message. The third expiration causes a
1708	  global soft reset.
1709
1710	  When userspace has /dev/watchdog open, no poking is done
1711	  from the first interrupt, it is then only poked when the
1712	  device is written.
1713
1714config BCM63XX_WDT
1715	tristate "Broadcom BCM63xx hardware watchdog"
1716	depends on BCM63XX
1717	help
1718	  Watchdog driver for the built in watchdog hardware in Broadcom
1719	  BCM63xx SoC.
1720
1721	  To compile this driver as a loadable module, choose M here.
1722	  The module will be called bcm63xx_wdt.
1723
1724config BCM2835_WDT
1725	tristate "Broadcom BCM2835 hardware watchdog"
1726	depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1727	select WATCHDOG_CORE
1728	help
1729	  Watchdog driver for the built in watchdog hardware in Broadcom
1730	  BCM2835 SoC.
1731
1732	  To compile this driver as a loadable module, choose M here.
1733	  The module will be called bcm2835_wdt.
1734
1735config BCM_KONA_WDT
1736	tristate "BCM Kona Watchdog"
1737	depends on ARCH_BCM_MOBILE || COMPILE_TEST
1738	select WATCHDOG_CORE
1739	help
1740	  Support for the watchdog timer on the following Broadcom BCM281xx
1741	  family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1742	  BCM28155 variants.
1743
1744	  Say 'Y' or 'M' here to enable the driver. The module will be called
1745	  bcm_kona_wdt.
1746
1747config BCM_KONA_WDT_DEBUG
1748	bool "DEBUGFS support for BCM Kona Watchdog"
1749	depends on BCM_KONA_WDT
1750	help
1751	  If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1752	  access to the driver's internal data structures as well as watchdog
1753	  timer hardware registres.
1754
1755	  If in doubt, say 'N'.
1756
1757config BCM7038_WDT
1758	tristate "BCM7038 Watchdog"
1759	select WATCHDOG_CORE
1760	depends on HAS_IOMEM
1761	depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1762	help
1763	 Watchdog driver for the built-in hardware in Broadcom 7038 and
1764	 later SoCs used in set-top boxes.  BCM7038 was made public
1765	 during the 2004 CES, and since then, many Broadcom chips use this
1766	 watchdog block, including some cable modem chips.
1767
1768config IMGPDC_WDT
1769	tristate "Imagination Technologies PDC Watchdog Timer"
1770	depends on HAS_IOMEM
1771	depends on MIPS || COMPILE_TEST
1772	select WATCHDOG_CORE
1773	help
1774	  Driver for Imagination Technologies PowerDown Controller
1775	  Watchdog Timer.
1776
1777	  To compile this driver as a loadable module, choose M here.
1778	  The module will be called imgpdc_wdt.
1779
1780config LANTIQ_WDT
1781	tristate "Lantiq SoC watchdog"
1782	depends on LANTIQ
1783	select WATCHDOG_CORE
1784	help
1785	  Hardware driver for the Lantiq SoC Watchdog Timer.
1786
1787config LOONGSON1_WDT
1788	tristate "Loongson1 SoC hardware watchdog"
1789	depends on MACH_LOONGSON32
1790	select WATCHDOG_CORE
1791	help
1792	  Hardware driver for the Loongson1 SoC Watchdog Timer.
1793
1794config RALINK_WDT
1795	tristate "Ralink SoC watchdog"
1796	select WATCHDOG_CORE
1797	depends on RALINK
1798	help
1799	  Hardware driver for the Ralink SoC Watchdog Timer.
1800
1801config MT7621_WDT
1802	tristate "Mediatek SoC watchdog"
1803	select WATCHDOG_CORE
1804	depends on SOC_MT7620 || SOC_MT7621
1805	help
1806	  Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1807
1808config PIC32_WDT
1809	tristate "Microchip PIC32 hardware watchdog"
1810	select WATCHDOG_CORE
1811	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1812	help
1813	  Watchdog driver for the built in watchdog hardware in a PIC32.
1814
1815	  Configuration bits must be set appropriately for the watchdog to be
1816	  controlled by this driver.
1817
1818	  To compile this driver as a loadable module, choose M here.
1819	  The module will be called pic32-wdt.
1820
1821config PIC32_DMT
1822	tristate "Microchip PIC32 Deadman Timer"
1823	select WATCHDOG_CORE
1824	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1825	help
1826	  Watchdog driver for PIC32 instruction fetch counting timer. This specific
1827	  timer is typically be used in misson critical and safety critical
1828	  applications, where any single failure of the software functionality
1829	  and sequencing must be detected.
1830
1831	  To compile this driver as a loadable module, choose M here.
1832	  The module will be called pic32-dmt.
1833
1834# PARISC Architecture
1835
1836# POWERPC Architecture
1837
1838config GEF_WDT
1839	tristate "GE Watchdog Timer"
1840	depends on GE_FPGA
1841	---help---
1842	  Watchdog timer found in a number of GE single board computers.
1843
1844config MPC5200_WDT
1845	bool "MPC52xx Watchdog Timer"
1846	depends on PPC_MPC52xx || COMPILE_TEST
1847	help
1848	  Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1849
1850config 8xxx_WDT
1851	tristate "MPC8xxx Platform Watchdog Timer"
1852	depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1853	select WATCHDOG_CORE
1854	help
1855	  This driver is for a SoC level watchdog that exists on some
1856	  Freescale PowerPC processors. So far this driver supports:
1857	  - MPC8xx watchdogs
1858	  - MPC83xx watchdogs
1859	  - MPC86xx watchdogs
1860
1861	  For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1862
1863config MV64X60_WDT
1864	tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1865	depends on MV64X60 || COMPILE_TEST
1866
1867config PIKA_WDT
1868	tristate "PIKA FPGA Watchdog"
1869	depends on WARP || (PPC64 && COMPILE_TEST)
1870	default y
1871	help
1872	  This enables the watchdog in the PIKA FPGA. Currently used on
1873	  the Warp platform.
1874
1875config BOOKE_WDT
1876	tristate "PowerPC Book-E Watchdog Timer"
1877	depends on BOOKE || 4xx
1878	select WATCHDOG_CORE
1879	---help---
1880	  Watchdog driver for PowerPC Book-E chips, such as the Freescale
1881	  MPC85xx SOCs and the IBM PowerPC 440.
1882
1883	  Please see Documentation/watchdog/watchdog-api.rst for
1884	  more information.
1885
1886config BOOKE_WDT_DEFAULT_TIMEOUT
1887	int "PowerPC Book-E Watchdog Timer Default Timeout"
1888	depends on BOOKE_WDT
1889	default 38 if PPC_FSL_BOOK3E
1890	range 0 63 if PPC_FSL_BOOK3E
1891	default 3 if !PPC_FSL_BOOK3E
1892	range 0 3 if !PPC_FSL_BOOK3E
1893	help
1894	  Select the default watchdog timer period to be used by the PowerPC
1895	  Book-E watchdog driver.  A watchdog "event" occurs when the bit
1896	  position represented by this number transitions from zero to one.
1897
1898	  For Freescale Book-E processors, this is a number between 0 and 63.
1899	  For other Book-E processors, this is a number between 0 and 3.
1900
1901	  The value can be overridden by the wdt_period command-line parameter.
1902
1903config MEN_A21_WDT
1904	tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1905	select WATCHDOG_CORE
1906	depends on GPIOLIB || COMPILE_TEST
1907	help
1908	  Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1909
1910	  The driver can also be built as a module. If so, the module will be
1911	  called mena21_wdt.
1912
1913	  If unsure select N here.
1914
1915# PPC64 Architecture
1916
1917config WATCHDOG_RTAS
1918	tristate "RTAS watchdog"
1919	depends on PPC_RTAS
1920	help
1921	  This driver adds watchdog support for the RTAS watchdog.
1922
1923	  To compile this driver as a module, choose M here. The module
1924	  will be called wdrtas.
1925
1926# S390 Architecture
1927
1928config DIAG288_WATCHDOG
1929	tristate "System z diag288 Watchdog"
1930	depends on S390
1931	select WATCHDOG_CORE
1932	help
1933	  IBM s/390 and zSeries machines running under z/VM 5.1 or later
1934	  provide a virtual watchdog timer to their guest that cause a
1935	  user define Control Program command to be executed after a
1936	  timeout.
1937	  LPAR provides a very similar interface. This driver handles
1938	  both.
1939
1940	  To compile this driver as a module, choose M here. The module
1941	  will be called diag288_wdt.
1942
1943# SUPERH (sh + sh64) Architecture
1944
1945config SH_WDT
1946	tristate "SuperH Watchdog"
1947	depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1948	select WATCHDOG_CORE
1949	help
1950	  This driver adds watchdog support for the integrated watchdog in the
1951	  SuperH processors. If you have one of these processors and wish
1952	  to have watchdog support enabled, say Y, otherwise say N.
1953
1954	  As a side note, saying Y here will automatically boost HZ to 1000
1955	  so that the timer has a chance to clear the overflow counter. On
1956	  slower systems (such as the SH-2 and SH-3) this will likely yield
1957	  some performance issues. As such, the WDT should be avoided here
1958	  unless it is absolutely necessary.
1959
1960	  To compile this driver as a module, choose M here: the
1961	  module will be called shwdt.
1962
1963# SPARC Architecture
1964
1965# SPARC64 Architecture
1966
1967config WATCHDOG_CP1XXX
1968	tristate "CP1XXX Hardware Watchdog support"
1969	depends on SPARC64 && PCI
1970	---help---
1971	  This is the driver for the hardware watchdog timers present on
1972	  Sun Microsystems CompactPCI models CP1400 and CP1500.
1973
1974	  To compile this driver as a module, choose M here: the
1975	  module will be called cpwatchdog.
1976
1977	  If you do not have a CompactPCI model CP1400 or CP1500, or
1978	  another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1979	  you should say N to this option.
1980
1981config WATCHDOG_RIO
1982	tristate "RIO Hardware Watchdog support"
1983	depends on SPARC64 && PCI
1984	help
1985	  Say Y here to support the hardware watchdog capability on Sun RIO
1986	  machines.  The watchdog timeout period is normally one minute but
1987	  can be changed with a boot-time parameter.
1988
1989config WATCHDOG_SUN4V
1990	tristate "Sun4v Watchdog support"
1991	select WATCHDOG_CORE
1992	depends on SPARC64
1993	help
1994	  Say Y here to support the hypervisor watchdog capability embedded
1995	  in the SPARC sun4v architecture.
1996
1997	  To compile this driver as a module, choose M here. The module will
1998	  be called sun4v_wdt.
1999
2000# XTENSA Architecture
2001
2002# Xen Architecture
2003
2004config XEN_WDT
2005	tristate "Xen Watchdog support"
2006	depends on XEN
2007	select WATCHDOG_CORE
2008	help
2009	  Say Y here to support the hypervisor watchdog capability provided
2010	  by Xen 4.0 and newer.  The watchdog timeout period is normally one
2011	  minute but can be changed with a boot-time parameter.
2012
2013config UML_WATCHDOG
2014	tristate "UML watchdog"
2015	depends on UML || COMPILE_TEST
2016
2017#
2018# ISA-based Watchdog Cards
2019#
2020
2021comment "ISA-based Watchdog Cards"
2022	depends on ISA
2023
2024config PCWATCHDOG
2025	tristate "Berkshire Products ISA-PC Watchdog"
2026	depends on ISA
2027	---help---
2028	  This is the driver for the Berkshire Products ISA-PC Watchdog card.
2029	  This card simply watches your kernel to make sure it doesn't freeze,
2030	  and if it does, it reboots your computer after a certain amount of
2031	  time. This driver is like the WDT501 driver but for different
2032	  hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. The PC
2033	  watchdog cards can be ordered from <http://www.berkprod.com/>.
2034
2035	  To compile this driver as a module, choose M here: the
2036	  module will be called pcwd.
2037
2038	  Most people will say N.
2039
2040config MIXCOMWD
2041	tristate "Mixcom Watchdog"
2042	depends on ISA
2043	---help---
2044	  This is a driver for the Mixcom hardware watchdog cards.  This
2045	  watchdog simply watches your kernel to make sure it doesn't freeze,
2046	  and if it does, it reboots your computer after a certain amount of
2047	  time.
2048
2049	  To compile this driver as a module, choose M here: the
2050	  module will be called mixcomwd.
2051
2052	  Most people will say N.
2053
2054config WDT
2055	tristate "WDT Watchdog timer"
2056	depends on ISA
2057	---help---
2058	  If you have a WDT500P or WDT501P watchdog board, say Y here,
2059	  otherwise N. It is not possible to probe for this board, which means
2060	  that you have to inform the kernel about the IO port and IRQ that
2061	  is needed (you can do this via the io and irq parameters)
2062
2063	  To compile this driver as a module, choose M here: the
2064	  module will be called wdt.
2065
2066#
2067# PCI-based Watchdog Cards
2068#
2069
2070comment "PCI-based Watchdog Cards"
2071	depends on PCI
2072
2073config PCIPCWATCHDOG
2074	tristate "Berkshire Products PCI-PC Watchdog"
2075	depends on PCI
2076	---help---
2077	  This is the driver for the Berkshire Products PCI-PC Watchdog card.
2078	  This card simply watches your kernel to make sure it doesn't freeze,
2079	  and if it does, it reboots your computer after a certain amount of
2080	  time. The card can also monitor the internal temperature of the PC.
2081	  More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2082
2083	  To compile this driver as a module, choose M here: the
2084	  module will be called pcwd_pci.
2085
2086	  Most people will say N.
2087
2088config WDTPCI
2089	tristate "PCI-WDT500/501 Watchdog timer"
2090	depends on PCI
2091	---help---
2092	  If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2093
2094	  If you have a PCI-WDT501 watchdog board then you can enable the
2095	  temperature sensor by setting the type parameter to 501.
2096
2097	  If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2098	  can do this via the tachometer parameter. Only do this if you have a
2099	  fan tachometer actually set up.
2100
2101	  To compile this driver as a module, choose M here: the
2102	  module will be called wdt_pci.
2103
2104#
2105# USB-based Watchdog Cards
2106#
2107
2108comment "USB-based Watchdog Cards"
2109	depends on USB
2110
2111config USBPCWATCHDOG
2112	tristate "Berkshire Products USB-PC Watchdog"
2113	depends on USB
2114	---help---
2115	  This is the driver for the Berkshire Products USB-PC Watchdog card.
2116	  This card simply watches your kernel to make sure it doesn't freeze,
2117	  and if it does, it reboots your computer after a certain amount of
2118	  time. The card can also monitor the internal temperature of the PC.
2119	  More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2120
2121	  To compile this driver as a module, choose M here: the
2122	  module will be called pcwd_usb.
2123
2124	  Most people will say N.
2125
2126endif # WATCHDOG
2127