xref: /linux/drivers/watchdog/Kconfig (revision 4ac6d90867a4de2e12117e755dbd76e08d88697f)
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	  <https://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon
26	  can also monitor NFS connections and can reboot the machine when the
27	  process 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
76config WATCHDOG_HRTIMER_PRETIMEOUT
77	bool "Enable watchdog hrtimer-based pretimeouts"
78	help
79	  Enable this if you want to use a hrtimer timer based pretimeout for
80	  watchdogs that do not natively support pretimeout support. Be aware
81	  that because this pretimeout functionality uses hrtimers, it may not
82	  be able to fire before the actual watchdog fires in some situations.
83
84comment "Watchdog Pretimeout Governors"
85
86config WATCHDOG_PRETIMEOUT_GOV
87	bool "Enable watchdog pretimeout governors"
88	depends on WATCHDOG_CORE
89	help
90	  The option allows to select watchdog pretimeout governors.
91
92config WATCHDOG_PRETIMEOUT_GOV_SEL
93	tristate
94	depends on WATCHDOG_PRETIMEOUT_GOV
95	default m
96	select WATCHDOG_PRETIMEOUT_GOV_PANIC if WATCHDOG_PRETIMEOUT_GOV_NOOP=n
97
98if WATCHDOG_PRETIMEOUT_GOV
99
100config WATCHDOG_PRETIMEOUT_GOV_NOOP
101	tristate "Noop watchdog pretimeout governor"
102	depends on WATCHDOG_CORE
103	default WATCHDOG_CORE
104	help
105	  Noop watchdog pretimeout governor, only an informational
106	  message is added to kernel log buffer.
107
108config WATCHDOG_PRETIMEOUT_GOV_PANIC
109	tristate "Panic watchdog pretimeout governor"
110	depends on WATCHDOG_CORE
111	default WATCHDOG_CORE
112	help
113	  Panic watchdog pretimeout governor, on watchdog pretimeout
114	  event put the kernel into panic.
115
116choice
117	prompt "Default Watchdog Pretimeout Governor"
118	default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
119	help
120	  This option selects a default watchdog pretimeout governor.
121	  The governor takes its action, if a watchdog is capable
122	  to report a pretimeout event.
123
124config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP
125	bool "noop"
126	depends on WATCHDOG_PRETIMEOUT_GOV_NOOP
127	help
128	  Use noop watchdog pretimeout governor by default. If noop
129	  governor is selected by a user, write a short message to
130	  the kernel log buffer and don't do any system changes.
131
132config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
133	bool "panic"
134	depends on WATCHDOG_PRETIMEOUT_GOV_PANIC
135	help
136	  Use panic watchdog pretimeout governor by default, if
137	  a watchdog pretimeout event happens, consider that
138	  a watchdog feeder is dead and reboot is unavoidable.
139
140endchoice
141
142endif # WATCHDOG_PRETIMEOUT_GOV
143
144#
145# General Watchdog drivers
146#
147
148comment "Watchdog Device Drivers"
149
150# Architecture Independent
151
152config SOFT_WATCHDOG
153	tristate "Software watchdog"
154	select WATCHDOG_CORE
155	help
156	  A software monitoring watchdog. This will fail to reboot your system
157	  from some situations that the hardware watchdog will recover
158	  from. Equally it's a lot cheaper to install.
159
160	  To compile this driver as a module, choose M here: the
161	  module will be called softdog.
162
163config SOFT_WATCHDOG_PRETIMEOUT
164	bool "Software watchdog pretimeout governor support"
165	depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV
166	help
167	  Enable this if you want to use pretimeout governors with the software
168	  watchdog. Be aware that governors might affect the watchdog because it
169	  is purely software, e.g. the panic governor will stall it!
170
171config BD70528_WATCHDOG
172	tristate "ROHM BD70528 PMIC Watchdog"
173	depends on MFD_ROHM_BD70528
174	select WATCHDOG_CORE
175	help
176	  Support for the watchdog in the ROHM BD70528 PMIC. Watchdog trigger
177	  cause system reset.
178
179	  Say Y here to include support for the ROHM BD70528 watchdog.
180	  Alternatively say M to compile the driver as a module,
181	  which will be called bd70528_wdt.
182
183config BD957XMUF_WATCHDOG
184	tristate "ROHM BD9576MUF and BD9573MUF PMIC Watchdog"
185	depends on MFD_ROHM_BD957XMUF
186	select WATCHDOG_CORE
187	help
188	  Support for the watchdog in the ROHM BD9576 and BD9573 PMICs.
189	  These PMIC ICs contain watchdog block which can be configured
190	  to toggle reset line if SoC fails to ping watchdog via GPIO.
191
192	  Say Y here to include support for the ROHM BD9576 or BD9573
193	  watchdog. Alternatively say M to compile the driver as a module,
194	  which will be called bd9576_wdt.
195
196config DA9052_WATCHDOG
197	tristate "Dialog DA9052 Watchdog"
198	depends on PMIC_DA9052 || COMPILE_TEST
199	select WATCHDOG_CORE
200	help
201	  Support for the watchdog in the DA9052 PMIC. Watchdog trigger
202	  cause system reset.
203
204	  Say Y here to include support for the DA9052 watchdog.
205	  Alternatively say M to compile the driver as a module,
206	  which will be called da9052_wdt.
207
208config DA9055_WATCHDOG
209	tristate "Dialog Semiconductor DA9055 Watchdog"
210	depends on MFD_DA9055 || COMPILE_TEST
211	select WATCHDOG_CORE
212	help
213	  If you say yes here you get support for watchdog on the Dialog
214	  Semiconductor DA9055 PMIC.
215
216	  This driver can also be built as a module.  If so, the module
217	  will be called da9055_wdt.
218
219config DA9063_WATCHDOG
220	tristate "Dialog DA9063 Watchdog"
221	depends on MFD_DA9063 || COMPILE_TEST
222	select WATCHDOG_CORE
223	help
224	  Support for the watchdog in the DA9063 PMIC.
225
226	  This driver can be built as a module. The module name is da9063_wdt.
227
228config DA9062_WATCHDOG
229	tristate "Dialog DA9062/61 Watchdog"
230	depends on MFD_DA9062 || COMPILE_TEST
231	depends on I2C
232	select WATCHDOG_CORE
233	help
234	  Support for the watchdog in the DA9062 and DA9061 PMICs.
235
236	  This driver can be built as a module. The module name is da9062_wdt.
237
238config GPIO_WATCHDOG
239	tristate "Watchdog device controlled through GPIO-line"
240	depends on OF_GPIO
241	select WATCHDOG_CORE
242	help
243	  If you say yes here you get support for watchdog device
244	  controlled through GPIO-line.
245
246config GPIO_WATCHDOG_ARCH_INITCALL
247	bool "Register the watchdog as early as possible"
248	depends on GPIO_WATCHDOG=y
249	help
250	  In some situations, the default initcall level (module_init)
251	  in not early enough in the boot process to avoid the watchdog
252	  to be triggered.
253	  If you say yes here, the initcall level would be raised to
254	  arch_initcall.
255	  If in doubt, say N.
256
257config MENF21BMC_WATCHDOG
258	tristate "MEN 14F021P00 BMC Watchdog"
259	depends on MFD_MENF21BMC || COMPILE_TEST
260	depends on I2C
261	select WATCHDOG_CORE
262	help
263	  Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
264
265	  This driver can also be built as a module. If so the module
266	  will be called menf21bmc_wdt.
267
268config MENZ069_WATCHDOG
269	tristate "MEN 16Z069 Watchdog"
270	depends on MCB
271	select WATCHDOG_CORE
272	help
273	  Say Y here to include support for the MEN 16Z069 Watchdog.
274
275	  This driver can also be built as a module. If so the module
276	  will be called menz069_wdt.
277
278config WDAT_WDT
279	tristate "ACPI Watchdog Action Table (WDAT)"
280	depends on ACPI
281	select WATCHDOG_CORE
282	select ACPI_WATCHDOG
283	help
284	  This driver adds support for systems with ACPI Watchdog Action
285	  Table (WDAT) table. Servers typically have this but it can be
286	  found on some desktop machines as well. This driver will take
287	  over the native iTCO watchdog driver found on many Intel CPUs.
288
289	  To compile this driver as module, choose M here: the module will
290	  be called wdat_wdt.
291
292config WM831X_WATCHDOG
293	tristate "WM831x watchdog"
294	depends on MFD_WM831X
295	select WATCHDOG_CORE
296	help
297	  Support for the watchdog in the WM831x AudioPlus PMICs.  When
298	  the watchdog triggers the system will be reset.
299
300config WM8350_WATCHDOG
301	tristate "WM8350 watchdog"
302	depends on MFD_WM8350
303	select WATCHDOG_CORE
304	help
305	  Support for the watchdog in the WM8350 AudioPlus PMIC.  When
306	  the watchdog triggers the system will be reset.
307
308config XILINX_WATCHDOG
309	tristate "Xilinx Watchdog timer"
310	depends on HAS_IOMEM
311	select WATCHDOG_CORE
312	help
313	  Watchdog driver for the xps_timebase_wdt IP core.
314
315	  To compile this driver as a module, choose M here: the
316	  module will be called of_xilinx_wdt.
317
318config ZIIRAVE_WATCHDOG
319	tristate "Zodiac RAVE Watchdog Timer"
320	depends on I2C
321	select WATCHDOG_CORE
322	help
323	  Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
324	  Processor.
325
326	  To compile this driver as a module, choose M here: the
327	  module will be called ziirave_wdt.
328
329config RAVE_SP_WATCHDOG
330	tristate "RAVE SP Watchdog timer"
331	depends on RAVE_SP_CORE
332	depends on NVMEM || !NVMEM
333	select WATCHDOG_CORE
334	help
335	  Support for the watchdog on RAVE SP device.
336
337config MLX_WDT
338	tristate "Mellanox Watchdog"
339	depends on MELLANOX_PLATFORM
340	select WATCHDOG_CORE
341	select REGMAP
342	help
343	  This is the driver for the hardware watchdog on Mellanox systems.
344	  If you are going to use it, say Y here, otherwise N.
345	  This driver can be used together with the watchdog daemon.
346	  It can also watch your kernel to make sure it doesn't freeze,
347	  and if it does, it reboots your system after a certain amount of
348	  time.
349
350	  To compile this driver as a module, choose M here: the
351	  module will be called mlx-wdt.
352
353config SL28CPLD_WATCHDOG
354	tristate "Kontron sl28cpld Watchdog"
355	depends on MFD_SL28CPLD || COMPILE_TEST
356	select WATCHDOG_CORE
357	help
358	  Say Y here to include support for the watchdog timer
359	  on the Kontron sl28 CPLD.
360
361	  To compile this driver as a module, choose M here: the
362	  module will be called sl28cpld_wdt.
363
364# ALPHA Architecture
365
366# ARM Architecture
367
368config ARM_SP805_WATCHDOG
369	tristate "ARM SP805 Watchdog"
370	depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
371	select WATCHDOG_CORE
372	help
373	  ARM Primecell SP805 Watchdog timer. This will reboot your system when
374	  the timeout is reached.
375
376config ARM_SBSA_WATCHDOG
377	tristate "ARM SBSA Generic Watchdog"
378	depends on ARM64
379	depends on ARM_ARCH_TIMER
380	select WATCHDOG_CORE
381	help
382	  ARM SBSA Generic Watchdog has two stage timeouts:
383	  the first signal (WS0) is for alerting the system by interrupt,
384	  the second one (WS1) is a real hardware reset.
385	  More details: ARM DEN0029B - Server Base System Architecture (SBSA)
386
387	  This driver can operate ARM SBSA Generic Watchdog as a single stage
388	  or a two stages watchdog, it depends on the module parameter "action".
389
390	  Note: the maximum timeout in the two stages mode is half of that in
391	  the single stage mode.
392
393	  To compile this driver as module, choose M here: The module
394	  will be called sbsa_gwdt.
395
396config ARMADA_37XX_WATCHDOG
397	tristate "Armada 37xx watchdog"
398	depends on ARCH_MVEBU || COMPILE_TEST
399	depends on HAS_IOMEM
400	select MFD_SYSCON
401	select WATCHDOG_CORE
402	help
403	   Say Y here to include support for the watchdog timer found on
404	   Marvell Armada 37xx SoCs.
405	   To compile this driver as a module, choose M here: the
406	   module will be called armada_37xx_wdt.
407
408config ASM9260_WATCHDOG
409	tristate "Alphascale ASM9260 watchdog"
410	depends on MACH_ASM9260 || COMPILE_TEST
411	depends on OF
412	select WATCHDOG_CORE
413	select RESET_CONTROLLER
414	help
415	  Watchdog timer embedded into Alphascale asm9260 chips. This will
416	  reboot your system when the timeout is reached.
417
418config AT91RM9200_WATCHDOG
419	tristate "AT91RM9200 watchdog"
420	depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
421	help
422	  Watchdog timer embedded into AT91RM9200 chips. This will reboot your
423	  system when the timeout is reached.
424
425config AT91SAM9X_WATCHDOG
426	tristate "AT91SAM9X / AT91CAP9 watchdog"
427	depends on ARCH_AT91 || COMPILE_TEST
428	select WATCHDOG_CORE
429	help
430	  Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
431	  reboot your system when the timeout is reached.
432
433config SAMA5D4_WATCHDOG
434	tristate "Atmel SAMA5D4 Watchdog Timer"
435	depends on ARCH_AT91 || COMPILE_TEST
436	select WATCHDOG_CORE
437	help
438	  Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
439	  Its Watchdog Timer Mode Register can be written more than once.
440	  This will reboot your system when the timeout is reached.
441
442config CADENCE_WATCHDOG
443	tristate "Cadence Watchdog Timer"
444	depends on HAS_IOMEM
445	select WATCHDOG_CORE
446	help
447	  Say Y here if you want to include support for the watchdog
448	  timer in the Xilinx Zynq.
449
450config 21285_WATCHDOG
451	tristate "DC21285 watchdog"
452	depends on FOOTBRIDGE
453	help
454	  The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
455	  here if you wish to use this. Alternatively say M to compile the
456	  driver as a module, which will be called wdt285.
457
458	  This driver does not work on all machines. In particular, early CATS
459	  boards have hardware problems that will cause the machine to simply
460	  lock up if the watchdog fires.
461
462	  "If in doubt, leave it out" - say N.
463
464config 977_WATCHDOG
465	tristate "NetWinder WB83C977 watchdog"
466	depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
467	help
468	  Say Y here to include support for the WB977 watchdog included in
469	  NetWinder machines. Alternatively say M to compile the driver as
470	  a module, which will be called wdt977.
471
472	  Not sure? It's safe to say N.
473
474config FTWDT010_WATCHDOG
475	tristate "Faraday Technology FTWDT010 watchdog"
476	depends on ARM || COMPILE_TEST
477	select WATCHDOG_CORE
478	default ARCH_GEMINI
479	help
480	  Say Y here if to include support for the Faraday Technology
481	  FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
482	  family of devices.
483
484	  To compile this driver as a module, choose M here: the
485	  module will be called ftwdt010_wdt.
486
487config IXP4XX_WATCHDOG
488	tristate "IXP4xx Watchdog"
489	depends on ARCH_IXP4XX
490	select WATCHDOG_CORE
491	help
492	  Say Y here if to include support for the watchdog timer
493	  in the Intel IXP4xx network processors. This driver can
494	  be built as a module by choosing M. The module will
495	  be called ixp4xx_wdt.
496
497	  Note: The internal IXP4xx watchdog does a soft CPU reset
498	  which doesn't reset any peripherals. There are circumstances
499	  where the watchdog will fail to reset the board correctly
500	  (e.g., if the boot ROM is in an unreadable state).
501
502	  Say N if you are unsure.
503
504config S3C2410_WATCHDOG
505	tristate "S3C2410 Watchdog"
506	depends on ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || \
507		   COMPILE_TEST
508	select WATCHDOG_CORE
509	select MFD_SYSCON if ARCH_EXYNOS
510	help
511	  Watchdog timer block in the Samsung SoCs. This will reboot
512	  the system when the timer expires with the watchdog enabled.
513
514	  The driver is limited by the speed of the system's PCLK
515	  signal, so with reasonably fast systems (PCLK around 50-66MHz)
516	  then watchdog intervals of over approximately 20seconds are
517	  unavailable.
518
519	  The driver can be built as a module by choosing M, and will
520	  be called s3c2410_wdt
521
522config SA1100_WATCHDOG
523	tristate "SA1100/PXA2xx watchdog"
524	depends on ARCH_SA1100 || ARCH_PXA
525	help
526	  Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
527	  reboot your system when timeout is reached.
528
529	  NOTE: once enabled, this timer cannot be disabled.
530
531	  To compile this driver as a module, choose M here: the
532	  module will be called sa1100_wdt.
533
534config DW_WATCHDOG
535	tristate "Synopsys DesignWare watchdog"
536	depends on HAS_IOMEM
537	select WATCHDOG_CORE
538	help
539	  Say Y here if to include support for the Synopsys DesignWare
540	  watchdog timer found in many chips.
541	  To compile this driver as a module, choose M here: the
542	  module will be called dw_wdt.
543
544config EP93XX_WATCHDOG
545	tristate "EP93xx Watchdog"
546	depends on ARCH_EP93XX || COMPILE_TEST
547	select WATCHDOG_CORE
548	help
549	  Say Y here if to include support for the watchdog timer
550	  embedded in the Cirrus Logic EP93xx family of devices.
551
552	  To compile this driver as a module, choose M here: the
553	  module will be called ep93xx_wdt.
554
555config OMAP_WATCHDOG
556	tristate "OMAP Watchdog"
557	depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
558	select WATCHDOG_CORE
559	help
560	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.
561	  Say 'Y' here to enable the
562	  OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
563
564config PNX4008_WATCHDOG
565	tristate "LPC32XX Watchdog"
566	depends on ARCH_LPC32XX || COMPILE_TEST
567	select WATCHDOG_CORE
568	help
569	  Say Y here if to include support for the watchdog timer
570	  in the LPC32XX processor.
571	  This driver can be built as a module by choosing M. The module
572	  will be called pnx4008_wdt.
573
574	  Say N if you are unsure.
575
576config IOP_WATCHDOG
577	tristate "IOP Watchdog"
578	depends on ARCH_IOP13XX
579	select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
580	help
581	  Say Y here if to include support for the watchdog timer
582	  in the Intel IOP3XX & IOP13XX I/O Processors.  This driver can
583	  be built as a module by choosing M. The module will
584	  be called iop_wdt.
585
586	  Note: The IOP13XX watchdog does an Internal Bus Reset which will
587	  affect both cores and the peripherals of the IOP.  The ATU-X
588	  and/or ATUe configuration registers will remain intact, but if
589	  operating as an Root Complex and/or Central Resource, the PCI-X
590	  and/or PCIe busses will also be reset.  THIS IS A VERY BIG HAMMER.
591
592config DAVINCI_WATCHDOG
593	tristate "DaVinci watchdog"
594	depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
595	select WATCHDOG_CORE
596	help
597	  Say Y here if to include support for the watchdog timer
598	  in the DaVinci DM644x/DM646x or Keystone processors.
599	  To compile this driver as a module, choose M here: the
600	  module will be called davinci_wdt.
601
602	  NOTE: once enabled, this timer cannot be disabled.
603	  Say N if you are unsure.
604
605config K3_RTI_WATCHDOG
606	tristate "Texas Instruments K3 RTI watchdog"
607	depends on ARCH_K3 || COMPILE_TEST
608	select WATCHDOG_CORE
609	help
610	  Say Y here if you want to include support for the K3 watchdog
611	  timer (RTI module) available in the K3 generation of processors.
612
613config ORION_WATCHDOG
614	tristate "Orion watchdog"
615	depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST
616	depends on ARM
617	select WATCHDOG_CORE
618	help
619	  Say Y here if to include support for the watchdog timer
620	  in the Marvell Orion5x and Kirkwood ARM SoCs.
621	  To compile this driver as a module, choose M here: the
622	  module will be called orion_wdt.
623
624config RN5T618_WATCHDOG
625	tristate "Ricoh RN5T618 watchdog"
626	depends on MFD_RN5T618 || COMPILE_TEST
627	select WATCHDOG_CORE
628	help
629	  If you say yes here you get support for watchdog on the Ricoh
630	  RN5T618 PMIC.
631
632	  This driver can also be built as a module.  If so, the module
633	  will be called rn5t618_wdt.
634
635config SUNXI_WATCHDOG
636	tristate "Allwinner SoCs watchdog support"
637	depends on ARCH_SUNXI || COMPILE_TEST
638	select WATCHDOG_CORE
639	help
640	  Say Y here to include support for the watchdog timer
641	  in Allwinner SoCs.
642	  To compile this driver as a module, choose M here: the
643	  module will be called sunxi_wdt.
644
645config NPCM7XX_WATCHDOG
646	tristate "Nuvoton NPCM750 watchdog"
647	depends on ARCH_NPCM || COMPILE_TEST
648	default y if ARCH_NPCM7XX
649	select WATCHDOG_CORE
650	help
651	  Say Y here to include Watchdog timer support for the
652	  watchdog embedded into the NPCM7xx.
653	  This watchdog is used to reset the system and thus cannot be
654	  compiled as a module.
655
656config TWL4030_WATCHDOG
657	tristate "TWL4030 Watchdog"
658	depends on TWL4030_CORE
659	select WATCHDOG_CORE
660	help
661	  Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
662	  watchdog timer support for TWL4030 chips.
663
664config STMP3XXX_RTC_WATCHDOG
665	tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
666	depends on RTC_DRV_STMP || COMPILE_TEST
667	select WATCHDOG_CORE
668	help
669	  Say Y here to include support for the watchdog timer inside
670	  the RTC for the STMP37XX/378X or i.MX23/28 SoC.
671	  To compile this driver as a module, choose M here: the
672	  module will be called stmp3xxx_rtc_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	select WATCHDOG_CORE
689	help
690	  Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
691	  watchdog timer implemented in a external CPLD chip. Say Y here
692	  if you want to support for the watchdog timer on TS-72XX boards.
693
694	  To compile this driver as a module, choose M here: the
695	  module will be called ts72xx_wdt.
696
697config MAX63XX_WATCHDOG
698	tristate "Max63xx watchdog"
699	depends on HAS_IOMEM
700	select WATCHDOG_CORE
701	help
702	  Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
703
704config MAX77620_WATCHDOG
705	tristate "Maxim Max77620 Watchdog Timer"
706	depends on MFD_MAX77620 || COMPILE_TEST
707	select WATCHDOG_CORE
708	help
709	 This is the driver for the Max77620 watchdog timer.
710	 Say 'Y' here to enable the watchdog timer support for
711	 MAX77620 chips. To compile this driver as a module,
712	 choose M here: the module will be called max77620_wdt.
713
714config IMX2_WDT
715	tristate "IMX2+ Watchdog"
716	depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
717	select REGMAP_MMIO
718	select WATCHDOG_CORE
719	help
720	  This is the driver for the hardware watchdog
721	  on the Freescale IMX2 and later processors.
722	  If you have one of these processors and wish to have
723	  watchdog support enabled, say Y, otherwise say N.
724
725	  To compile this driver as a module, choose M here: the
726	  module will be called imx2_wdt.
727
728config IMX_SC_WDT
729	tristate "IMX SC Watchdog"
730	depends on HAVE_ARM_SMCCC
731	depends on IMX_SCU
732	select WATCHDOG_CORE
733	help
734	  This is the driver for the system controller watchdog
735	  on the NXP i.MX SoCs with system controller inside, the
736	  watchdog driver will call ARM SMC API and trap into
737	  ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
738	  will request system controller to execute the operations.
739	  If you have one of these processors and wish to have
740	  watchdog support enabled, say Y, otherwise say N.
741
742	  To compile this driver as a module, choose M here: the
743	  module will be called imx_sc_wdt.
744
745config IMX7ULP_WDT
746	tristate "IMX7ULP Watchdog"
747	depends on ARCH_MXC || COMPILE_TEST
748	select WATCHDOG_CORE
749	help
750	  This is the driver for the hardware watchdog on the Freescale
751	  IMX7ULP and later processors. If you have one of these
752	  processors and wish to have watchdog support enabled,
753	  say Y, otherwise say N.
754
755	  To compile this driver as a module, choose M here: the
756	  module will be called imx7ulp_wdt.
757
758config UX500_WATCHDOG
759	tristate "ST-Ericsson Ux500 watchdog"
760	depends on MFD_DB8500_PRCMU
761	select WATCHDOG_CORE
762	default y
763	help
764	  Say Y here to include Watchdog timer support for the watchdog
765	  existing in the prcmu of ST-Ericsson Ux500 series platforms.
766
767	  To compile this driver as a module, choose M here: the
768	  module will be called ux500_wdt.
769
770config RETU_WATCHDOG
771	tristate "Retu watchdog"
772	depends on MFD_RETU
773	select WATCHDOG_CORE
774	help
775	  Retu watchdog driver for Nokia Internet Tablets (770, N800,
776	  N810). At least on N800 the watchdog cannot be disabled, so
777	  this driver is essential and you should enable it.
778
779	  To compile this driver as a module, choose M here: the
780	  module will be called retu_wdt.
781
782config MOXART_WDT
783	tristate "MOXART watchdog"
784	depends on ARCH_MOXART || COMPILE_TEST
785	help
786	  Say Y here to include Watchdog timer support for the watchdog
787	  existing on the MOXA ART SoC series platforms.
788
789	  To compile this driver as a module, choose M here: the
790	  module will be called moxart_wdt.
791
792config ST_LPC_WATCHDOG
793	tristate "STMicroelectronics LPC Watchdog"
794	depends on ARCH_STI || COMPILE_TEST
795	depends on OF
796	select WATCHDOG_CORE
797	help
798	  Say Y here to include STMicroelectronics Low Power Controller
799	  (LPC) based Watchdog timer support.
800
801	  To compile this driver as a module, choose M here: the
802	  module will be called st_lpc_wdt.
803
804config TEGRA_WATCHDOG
805	tristate "Tegra watchdog"
806	depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
807	select WATCHDOG_CORE
808	help
809	  Say Y here to include support for the watchdog timer
810	  embedded in NVIDIA Tegra SoCs.
811
812	  To compile this driver as a module, choose M here: the
813	  module will be called tegra_wdt.
814
815config QCOM_WDT
816	tristate "QCOM watchdog"
817	depends on HAS_IOMEM
818	depends on ARCH_QCOM || COMPILE_TEST
819	select WATCHDOG_CORE
820	help
821	  Say Y here to include Watchdog timer support for the watchdog found
822	  on QCOM chipsets.  Currently supported targets are the MSM8960,
823	  APQ8064, and IPQ8064.
824
825	  To compile this driver as a module, choose M here: the
826	  module will be called qcom_wdt.
827
828config MESON_GXBB_WATCHDOG
829	tristate "Amlogic Meson GXBB SoCs watchdog support"
830	depends on ARCH_MESON || COMPILE_TEST
831	select WATCHDOG_CORE
832	help
833	  Say Y here to include support for the watchdog timer
834	  in Amlogic Meson GXBB SoCs.
835	  To compile this driver as a module, choose M here: the
836	  module will be called meson_gxbb_wdt.
837
838config MESON_WATCHDOG
839	tristate "Amlogic Meson SoCs watchdog support"
840	depends on ARCH_MESON || COMPILE_TEST
841	select WATCHDOG_CORE
842	help
843	  Say Y here to include support for the watchdog timer
844	  in Amlogic Meson SoCs.
845	  To compile this driver as a module, choose M here: the
846	  module will be called meson_wdt.
847
848config MEDIATEK_WATCHDOG
849	tristate "Mediatek SoCs watchdog support"
850	depends on ARCH_MEDIATEK || COMPILE_TEST
851	select WATCHDOG_CORE
852	select RESET_CONTROLLER
853	help
854	  Say Y here to include support for the watchdog timer
855	  in Mediatek SoCs.
856	  To compile this driver as a module, choose M here: the
857	  module will be called mtk_wdt.
858
859config DIGICOLOR_WATCHDOG
860	tristate "Conexant Digicolor SoCs watchdog support"
861	depends on ARCH_DIGICOLOR || COMPILE_TEST
862	select WATCHDOG_CORE
863	help
864	  Say Y here to include support for the watchdog timer
865	  in Conexant Digicolor SoCs.
866	  To compile this driver as a module, choose M here: the
867	  module will be called digicolor_wdt.
868
869config ARM_SMC_WATCHDOG
870	tristate "ARM Secure Monitor Call based watchdog support"
871	depends on ARM || ARM64
872	depends on OF
873	depends on HAVE_ARM_SMCCC
874	select WATCHDOG_CORE
875	help
876	  Say Y here to include support for a watchdog timer
877	  implemented by the EL3 Secure Monitor on ARM platforms.
878	  Requires firmware support.
879	  To compile this driver as a module, choose M here: the
880	  module will be called arm_smc_wdt.
881
882config LPC18XX_WATCHDOG
883	tristate "LPC18xx/43xx Watchdog"
884	depends on ARCH_LPC18XX || COMPILE_TEST
885	depends on HAS_IOMEM
886	select WATCHDOG_CORE
887	help
888	  Say Y here if to include support for the watchdog timer
889	  in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
890	  processors.
891	  To compile this driver as a module, choose M here: the
892	  module will be called lpc18xx_wdt.
893
894config RENESAS_WDT
895	tristate "Renesas WDT Watchdog"
896	depends on ARCH_RENESAS || COMPILE_TEST
897	select WATCHDOG_CORE
898	help
899	  This driver adds watchdog support for the integrated watchdogs in the
900	  Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
901
902config RENESAS_RZAWDT
903	tristate "Renesas RZ/A WDT Watchdog"
904	depends on ARCH_RENESAS || COMPILE_TEST
905	select WATCHDOG_CORE
906	help
907	  This driver adds watchdog support for the integrated watchdogs in the
908	  Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
909
910config ASPEED_WATCHDOG
911	tristate "Aspeed BMC watchdog support"
912	depends on ARCH_ASPEED || COMPILE_TEST
913	select WATCHDOG_CORE
914	help
915	  Say Y here to include support for the watchdog timer
916	  in Aspeed BMC SoCs.
917
918	  This driver is required to reboot the SoC.
919
920	  To compile this driver as a module, choose M here: the
921	  module will be called aspeed_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
985config VISCONTI_WATCHDOG
986	tristate "Toshiba Visconti series watchdog support"
987	depends on ARCH_VISCONTI || COMPILE_TEST
988	select WATCHDOG_CORE
989	help
990	  Say Y here to include support for the watchdog timer in Toshiba
991	  Visconti SoCs.
992
993config MSC313E_WATCHDOG
994	tristate "MStar MSC313e watchdog"
995	depends on ARCH_MSTARV7 || COMPILE_TEST
996	select WATCHDOG_CORE
997	help
998	  Say Y here to include support for the Watchdog timer embedded
999	  into MStar MSC313e chips. This will reboot your system when the
1000	  timeout is reached.
1001
1002	  To compile this driver as a module, choose M here: the
1003	  module will be called msc313e_wdt.
1004
1005# X86 (i386 + ia64 + x86_64) Architecture
1006
1007config ACQUIRE_WDT
1008	tristate "Acquire SBC Watchdog Timer"
1009	depends on X86
1010	help
1011	  This is the driver for the hardware watchdog on Single Board
1012	  Computers produced by Acquire Inc (and others). This watchdog
1013	  simply watches your kernel to make sure it doesn't freeze, and if
1014	  it does, it reboots your computer after a certain amount of time.
1015
1016	  To compile this driver as a module, choose M here: the
1017	  module will be called acquirewdt.
1018
1019	  Most people will say N.
1020
1021config ADVANTECH_WDT
1022	tristate "Advantech SBC Watchdog Timer"
1023	depends on X86
1024	help
1025	  If you are configuring a Linux kernel for the Advantech single-board
1026	  computer, say `Y' here to support its built-in watchdog timer
1027	  feature. More information can be found at
1028	  <https://www.advantech.com.tw/products/>
1029
1030config ALIM1535_WDT
1031	tristate "ALi M1535 PMU Watchdog Timer"
1032	depends on X86 && PCI
1033	help
1034	  This is the driver for the hardware watchdog on the ALi M1535 PMU.
1035
1036	  To compile this driver as a module, choose M here: the
1037	  module will be called alim1535_wdt.
1038
1039	  Most people will say N.
1040
1041config ALIM7101_WDT
1042	tristate "ALi M7101 PMU Computer Watchdog"
1043	depends on PCI
1044	help
1045	  This is the driver for the hardware watchdog on the ALi M7101 PMU
1046	  as used in the x86 Cobalt servers and also found in some
1047	  SPARC Netra servers too.
1048
1049	  To compile this driver as a module, choose M here: the
1050	  module will be called alim7101_wdt.
1051
1052	  Most people will say N.
1053
1054config EBC_C384_WDT
1055	tristate "WinSystems EBC-C384 Watchdog Timer"
1056	depends on X86
1057	select ISA_BUS_API
1058	select WATCHDOG_CORE
1059	help
1060	  Enables watchdog timer support for the watchdog timer on the
1061	  WinSystems EBC-C384 motherboard. The timeout may be configured via
1062	  the timeout module parameter.
1063
1064config F71808E_WDT
1065	tristate "Fintek F718xx, F818xx Super I/O Watchdog"
1066	depends on X86
1067	help
1068	  This is the driver for the hardware watchdog on the Fintek F71808E,
1069	  F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and
1070	  F81866 Super I/O controllers.
1071
1072	  You can compile this driver directly into the kernel, or use
1073	  it as a module.  The module will be called f71808e_wdt.
1074
1075config SP5100_TCO
1076	tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
1077	depends on X86 && PCI
1078	select WATCHDOG_CORE
1079	help
1080	  Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
1081	  (Total Cost of Ownership) timer is a watchdog timer that will reboot
1082	  the machine after its expiration. The expiration time can be
1083	  configured with the "heartbeat" parameter.
1084
1085	  To compile this driver as a module, choose M here: the
1086	  module will be called sp5100_tco.
1087
1088config GEODE_WDT
1089	tristate "AMD Geode CS5535/CS5536 Watchdog"
1090	depends on CS5535_MFGPT
1091	help
1092	  This driver enables a watchdog capability built into the
1093	  CS5535/CS5536 companion chips for the AMD Geode GX and LX
1094	  processors.  This watchdog watches your kernel to make sure
1095	  it doesn't freeze, and if it does, it reboots your computer after
1096	  a certain amount of time.
1097
1098	  You can compile this driver directly into the kernel, or use
1099	  it as a module.  The module will be called geodewdt.
1100
1101config SC520_WDT
1102	tristate "AMD Elan SC520 processor Watchdog"
1103	depends on MELAN || COMPILE_TEST
1104	help
1105	  This is the driver for the hardware watchdog built in to the
1106	  AMD "Elan" SC520 microcomputer commonly used in embedded systems.
1107	  This watchdog simply watches your kernel to make sure it doesn't
1108	  freeze, and if it does, it reboots your computer after a certain
1109	  amount of time.
1110
1111	  You can compile this driver directly into the kernel, or use
1112	  it as a module.  The module will be called sc520_wdt.
1113
1114config SBC_FITPC2_WATCHDOG
1115	tristate "Compulab SBC-FITPC2 watchdog"
1116	depends on X86
1117	help
1118	  This is the driver for the built-in watchdog timer on the fit-PC2,
1119	  fit-PC2i, CM-iAM single-board computers made by Compulab.
1120
1121	  It's possible to enable the watchdog timer either from BIOS (F2) or
1122	  from booted Linux.
1123	  When the "Watchdog Timer Value" is enabled one can set 31-255 seconds
1124	  operational range.
1125
1126	  Entering BIOS setup temporarily disables watchdog operation regardless
1127	  of current state, so system will not be restarted while user is in
1128	  BIOS setup.
1129
1130	  Once the watchdog is enabled the system will be restarted every
1131	  "Watchdog Timer Value" period, so to prevent it user can restart or
1132	  disable the watchdog.
1133
1134	  To compile this driver as a module, choose M here: the
1135	  module will be called sbc_fitpc2_wdt.
1136
1137	  Most people will say N.
1138
1139config EUROTECH_WDT
1140	tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1141	depends on X86
1142	help
1143	  Enable support for the watchdog timer on the Eurotech CPU-1220 and
1144	  CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
1145	  information are at <http://www.eurotech.it/>.
1146
1147config IB700_WDT
1148	tristate "IB700 SBC Watchdog Timer"
1149	depends on X86
1150	help
1151	  This is the driver for the hardware watchdog on the IB700 Single
1152	  Board Computer produced by TMC Technology (www.tmc-uk.com). This
1153	  watchdog simply watches your kernel to make sure it doesn't freeze,
1154	  and if it does, it reboots your computer after a certain amount of time.
1155
1156	  This driver is like the WDT501 driver but for slightly different
1157	  hardware.
1158
1159	  To compile this driver as a module, choose M here: the
1160	  module will be called ib700wdt.
1161
1162	  Most people will say N.
1163
1164config IBMASR
1165	tristate "IBM Automatic Server Restart"
1166	depends on X86
1167	help
1168	  This is the driver for the IBM Automatic Server Restart watchdog
1169	  timer built-in into some eServer xSeries machines.
1170
1171	  To compile this driver as a module, choose M here: the
1172	  module will be called ibmasr.
1173
1174config WAFER_WDT
1175	tristate "ICP Single Board Computer Watchdog Timer"
1176	depends on X86
1177	help
1178	  This is a driver for the hardware watchdog on the ICP Single
1179	  Board Computer. This driver is working on (at least) the following
1180	  IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1181
1182	  To compile this driver as a module, choose M here: the
1183	  module will be called wafer5823wdt.
1184
1185config I6300ESB_WDT
1186	tristate "Intel 6300ESB Timer/Watchdog"
1187	depends on PCI
1188	select WATCHDOG_CORE
1189	help
1190	  Hardware driver for the watchdog timer built into the Intel
1191	  6300ESB controller hub.
1192
1193	  To compile this driver as a module, choose M here: the
1194	  module will be called i6300esb.
1195
1196config IE6XX_WDT
1197	tristate "Intel Atom E6xx Watchdog"
1198	depends on X86 && PCI
1199	select WATCHDOG_CORE
1200	select MFD_CORE
1201	select LPC_SCH
1202	help
1203	  Hardware driver for the watchdog timer built into the Intel
1204	  Atom E6XX (TunnelCreek) processor.
1205
1206	  To compile this driver as a module, choose M here: the
1207	  module will be called ie6xx_wdt.
1208
1209config INTEL_MID_WATCHDOG
1210	tristate "Intel MID Watchdog Timer"
1211	depends on X86_INTEL_MID
1212	select WATCHDOG_CORE
1213	help
1214	  Watchdog timer driver built into the Intel SCU for Intel MID
1215	  Platforms.
1216
1217	  This driver currently supports only the watchdog evolution
1218	  implementation in SCU, available for Merrifield generation.
1219
1220	  To compile this driver as a module, choose M here.
1221
1222config ITCO_WDT
1223	tristate "Intel TCO Timer/Watchdog"
1224	depends on (X86 || IA64) && PCI
1225	select WATCHDOG_CORE
1226	depends on I2C || I2C=n
1227	depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT
1228	select LPC_ICH if !EXPERT
1229	select I2C_I801 if !EXPERT && I2C
1230	help
1231	  Hardware driver for the intel TCO timer based watchdog devices.
1232	  These drivers are included in the Intel 82801 I/O Controller
1233	  Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1234	  controller hub.
1235
1236	  The TCO (Total Cost of Ownership) timer is a watchdog timer
1237	  that will reboot the machine after its second expiration. The
1238	  expiration time can be configured with the "heartbeat" parameter.
1239
1240	  On some motherboards the driver may fail to reset the chipset's
1241	  NO_REBOOT flag which prevents the watchdog from rebooting the
1242	  machine. If this is the case you will get a kernel message like
1243	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1244
1245	  To compile this driver as a module, choose M here: the
1246	  module will be called iTCO_wdt.
1247
1248config ITCO_VENDOR_SUPPORT
1249	bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1250	depends on ITCO_WDT
1251	help
1252	  Add vendor specific support to the intel TCO timer based watchdog
1253	  devices. At this moment we only have additional support for some
1254	  SuperMicro Inc. motherboards.
1255
1256config IT8712F_WDT
1257	tristate "IT8712F (Smart Guardian) Watchdog Timer"
1258	depends on X86
1259	help
1260	  This is the driver for the built-in watchdog timer on the IT8712F
1261	  Super I/0 chipset used on many motherboards.
1262
1263	  If the driver does not work, then make sure that the game port in
1264	  the BIOS is enabled.
1265
1266	  To compile this driver as a module, choose M here: the
1267	  module will be called it8712f_wdt.
1268
1269config IT87_WDT
1270	tristate "IT87 Watchdog Timer"
1271	depends on X86
1272	select WATCHDOG_CORE
1273	help
1274	  This is the driver for the hardware watchdog on the ITE IT8607,
1275	  IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1276	  IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1277	  IT8783 Super I/O chips.
1278
1279	  This watchdog simply watches your kernel to make sure it doesn't
1280	  freeze, and if it does, it reboots your computer after a certain
1281	  amount of time.
1282
1283	  To compile this driver as a module, choose M here: the module will
1284	  be called it87_wdt.
1285
1286config HP_WATCHDOG
1287	tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1288	select WATCHDOG_CORE
1289	depends on X86 && PCI
1290	help
1291	  A software monitoring watchdog and NMI handling driver. This driver
1292	  will detect lockups and provide a stack trace. This is a driver that
1293	  will only load on an HP ProLiant system with a minimum of iLO2 support.
1294	  To compile this driver as a module, choose M here: the module will be
1295	  called hpwdt.
1296
1297config HPWDT_NMI_DECODING
1298	bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1299	depends on HP_WATCHDOG
1300	default y
1301	help
1302	  Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1303	  "Generate NMI to System" virtual button.  When an NMI is claimed
1304	  by the driver, panic is called.
1305
1306config KEMPLD_WDT
1307	tristate "Kontron COM Watchdog Timer"
1308	depends on MFD_KEMPLD
1309	select WATCHDOG_CORE
1310	help
1311	  Support for the PLD watchdog on some Kontron ETX and COMexpress
1312	  (ETXexpress) modules
1313
1314	  This driver can also be built as a module. If so, the module will be
1315	  called kempld_wdt.
1316
1317config SC1200_WDT
1318	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1319	depends on X86
1320	help
1321	  This is a driver for National Semiconductor PC87307/PC97307 hardware
1322	  watchdog cards as found on the SC1200. This watchdog is mainly used
1323	  for power management purposes and can be used to power down the device
1324	  during inactivity periods (includes interrupt activity monitoring).
1325
1326	  To compile this driver as a module, choose M here: the
1327	  module will be called sc1200wdt.
1328
1329	  Most people will say N.
1330
1331config SCx200_WDT
1332	tristate "National Semiconductor SCx200 Watchdog"
1333	depends on SCx200 && PCI
1334	help
1335	  Enable the built-in watchdog timer support on the National
1336	  Semiconductor SCx200 processors.
1337
1338	  If compiled as a module, it will be called scx200_wdt.
1339
1340config PC87413_WDT
1341	tristate "NS PC87413 watchdog"
1342	depends on X86
1343	help
1344	  This is the driver for the hardware watchdog on the PC87413 chipset
1345	  This watchdog simply watches your kernel to make sure it doesn't
1346	  freeze, and if it does, it reboots your computer after a certain
1347	  amount of time.
1348
1349	  To compile this driver as a module, choose M here: the
1350	  module will be called pc87413_wdt.
1351
1352	  Most people will say N.
1353
1354config NV_TCO
1355	tristate "nVidia TCO Timer/Watchdog"
1356	depends on X86 && PCI
1357	help
1358	  Hardware driver for the TCO timer built into the nVidia Hub family
1359	  (such as the MCP51).  The TCO (Total Cost of Ownership) timer is a
1360	  watchdog timer that will reboot the machine after its second
1361	  expiration. The expiration time can be configured with the
1362	  "heartbeat" parameter.
1363
1364	  On some motherboards the driver may fail to reset the chipset's
1365	  NO_REBOOT flag which prevents the watchdog from rebooting the
1366	  machine. If this is the case you will get a kernel message like
1367	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1368
1369	  To compile this driver as a module, choose M here: the
1370	  module will be called nv_tco.
1371
1372config RDC321X_WDT
1373	tristate "RDC R-321x SoC watchdog"
1374	depends on X86_RDC321X || COMPILE_TEST
1375	depends on PCI
1376	help
1377	  This is the driver for the built in hardware watchdog
1378	  in the RDC R-321x SoC.
1379
1380	  To compile this driver as a module, choose M here: the
1381	  module will be called rdc321x_wdt.
1382
1383config 60XX_WDT
1384	tristate "SBC-60XX Watchdog Timer"
1385	depends on X86
1386	help
1387	  This driver can be used with the watchdog timer found on some
1388	  single board computers, namely the 6010 PII based computer.
1389	  It may well work with other cards.  It reads port 0x443 to enable
1390	  and re-set the watchdog timer, and reads port 0x45 to disable
1391	  the watchdog.  If you have a card that behave in similar ways,
1392	  you can probably make this driver work with your card as well.
1393
1394	  You can compile this driver directly into the kernel, or use
1395	  it as a module.  The module will be called sbc60xxwdt.
1396
1397config SBC8360_WDT
1398	tristate "SBC8360 Watchdog Timer"
1399	depends on X86_32
1400	help
1401
1402	  This is the driver for the hardware watchdog on the SBC8360 Single
1403	  Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1404
1405	  To compile this driver as a module, choose M here: the
1406	  module will be called sbc8360.
1407
1408	  Most people will say N.
1409
1410config SBC7240_WDT
1411	tristate "SBC Nano 7240 Watchdog Timer"
1412	depends on X86_32 && !UML
1413	help
1414	  This is the driver for the hardware watchdog found on the IEI
1415	  single board computers EPIC Nano 7240 (and likely others). This
1416	  watchdog simply watches your kernel to make sure it doesn't freeze,
1417	  and if it does, it reboots your computer after a certain amount of
1418	  time.
1419
1420	  To compile this driver as a module, choose M here: the
1421	  module will be called sbc7240_wdt.
1422
1423config CPU5_WDT
1424	tristate "SMA CPU5 Watchdog"
1425	depends on X86
1426	help
1427	  TBD.
1428	  To compile this driver as a module, choose M here: the
1429	  module will be called cpu5wdt.
1430
1431config SMSC_SCH311X_WDT
1432	tristate "SMSC SCH311X Watchdog Timer"
1433	depends on X86
1434	help
1435	  This is the driver for the hardware watchdog timer on the
1436	  SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1437	  (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1438	  serial ports).
1439
1440	  To compile this driver as a module, choose M here: the
1441	  module will be called sch311x_wdt.
1442
1443config SMSC37B787_WDT
1444	tristate "Winbond SMsC37B787 Watchdog Timer"
1445	depends on X86
1446	help
1447	  This is the driver for the hardware watchdog component on the
1448	  Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1449	  from Vision Systems and maybe others.
1450
1451	  This watchdog simply watches your kernel to make sure it doesn't
1452	  freeze, and if it does, it reboots your computer after a certain
1453	  amount of time.
1454
1455	  Usually a userspace daemon will notify the kernel WDT driver that
1456	  userspace is still alive, at regular intervals.
1457
1458	  To compile this driver as a module, choose M here: the
1459	  module will be called smsc37b787_wdt.
1460
1461	  Most people will say N.
1462
1463config TQMX86_WDT
1464	tristate "TQ-Systems TQMX86 Watchdog Timer"
1465	depends on X86
1466	select WATCHDOG_CORE
1467	help
1468	This is the driver for the hardware watchdog timer in the TQMX86 IO
1469	controller found on some of their ComExpress Modules.
1470
1471	To compile this driver as a module, choose M here; the module
1472	will be called tqmx86_wdt.
1473
1474	Most people will say N.
1475
1476config VIA_WDT
1477	tristate "VIA Watchdog Timer"
1478	depends on X86 && PCI
1479	select WATCHDOG_CORE
1480	help
1481	This is the driver for the hardware watchdog timer on VIA
1482	southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1483
1484	To compile this driver as a module, choose M here; the module
1485	will be called via_wdt.
1486
1487	Most people will say N.
1488
1489config W83627HF_WDT
1490	tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1491	depends on X86
1492	select WATCHDOG_CORE
1493	help
1494	  This is the driver for the hardware watchdog on the following
1495	  Super I/O chips.
1496		W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1497		W83637HF
1498		W83667HG/HG-B
1499		W83687THF
1500		W83697HF
1501		W83697UG
1502		NCT6775
1503		NCT6776
1504		NCT6779
1505		NCT6791
1506		NCT6792
1507		NCT6102D/04D/06D
1508		NCT6116D
1509
1510	  This watchdog simply watches your kernel to make sure it doesn't
1511	  freeze, and if it does, it reboots your computer after a certain
1512	  amount of time.
1513
1514	  To compile this driver as a module, choose M here: the
1515	  module will be called w83627hf_wdt.
1516
1517	  Most people will say N.
1518
1519config W83877F_WDT
1520	tristate "W83877F (EMACS) Watchdog Timer"
1521	depends on X86
1522	help
1523	  This is the driver for the hardware watchdog on the W83877F chipset
1524	  as used in EMACS PC-104 motherboards (and likely others).  This
1525	  watchdog simply watches your kernel to make sure it doesn't freeze,
1526	  and if it does, it reboots your computer after a certain amount of
1527	  time.
1528
1529	  To compile this driver as a module, choose M here: the
1530	  module will be called w83877f_wdt.
1531
1532	  Most people will say N.
1533
1534config W83977F_WDT
1535	tristate "W83977F (PCM-5335) Watchdog Timer"
1536	depends on X86
1537	help
1538	  This is the driver for the hardware watchdog on the W83977F I/O chip
1539	  as used in AAEON's PCM-5335 SBC (and likely others).  This
1540	  watchdog simply watches your kernel to make sure it doesn't freeze,
1541	  and if it does, it reboots your computer after a certain amount of
1542	  time.
1543
1544	  To compile this driver as a module, choose M here: the
1545	  module will be called w83977f_wdt.
1546
1547config MACHZ_WDT
1548	tristate "ZF MachZ Watchdog"
1549	depends on X86
1550	help
1551	  If you are using a ZF Micro MachZ processor, say Y here, otherwise
1552	  N.  This is the driver for the watchdog timer built-in on that
1553	  processor using ZF-Logic interface.  This watchdog simply watches
1554	  your kernel to make sure it doesn't freeze, and if it does, it
1555	  reboots your computer after a certain amount of time.
1556
1557	  To compile this driver as a module, choose M here: the
1558	  module will be called machzwd.
1559
1560config SBC_EPX_C3_WATCHDOG
1561	tristate "Winsystems SBC EPX-C3 watchdog"
1562	depends on X86
1563	help
1564	  This is the driver for the built-in watchdog timer on the EPX-C3
1565	  Single-board computer made by Winsystems, Inc.
1566
1567	  *Note*: This hardware watchdog is not probeable and thus there
1568	  is no way to know if writing to its IO address will corrupt
1569	  your system or have any real effect.  The only way to be sure
1570	  that this driver does what you want is to make sure you
1571	  are running it on an EPX-C3 from Winsystems with the watchdog
1572	  timer at IO address 0x1ee and 0x1ef.  It will write to both those
1573	  IO ports.  Basically, the assumption is made that if you compile
1574	  this driver into your kernel and/or load it as a module, that you
1575	  know what you are doing and that you are in fact running on an
1576	  EPX-C3 board!
1577
1578	  To compile this driver as a module, choose M here: the
1579	  module will be called sbc_epx_c3.
1580
1581config INTEL_MEI_WDT
1582	tristate "Intel MEI iAMT Watchdog"
1583	depends on INTEL_MEI && X86
1584	select WATCHDOG_CORE
1585	help
1586	  A device driver for the Intel MEI iAMT watchdog.
1587
1588	  The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1589	  Whenever the OS hangs or crashes, iAMT will send an event
1590	  to any subscriber to this event. The watchdog doesn't reset the
1591	  the platform.
1592
1593	  To compile this driver as a module, choose M here:
1594	  the module will be called mei_wdt.
1595
1596config NI903X_WDT
1597	tristate "NI 903x/913x Watchdog"
1598	depends on X86 && ACPI
1599	select WATCHDOG_CORE
1600	help
1601	  This is the driver for the watchdog timer on the National Instruments
1602	  903x/913x real-time controllers.
1603
1604	  To compile this driver as a module, choose M here: the module will be
1605	  called ni903x_wdt.
1606
1607config NIC7018_WDT
1608	tristate "NIC7018 Watchdog"
1609	depends on X86 && ACPI
1610	select WATCHDOG_CORE
1611	help
1612	  Support for National Instruments NIC7018 Watchdog.
1613
1614	  To compile this driver as a module, choose M here: the module will be
1615	  called nic7018_wdt.
1616
1617# M68K Architecture
1618
1619config M54xx_WATCHDOG
1620	tristate "MCF54xx watchdog support"
1621	depends on M548x
1622	help
1623	  To compile this driver as a module, choose M here: the
1624	  module will be called m54xx_wdt.
1625
1626# MicroBlaze Architecture
1627
1628# MIPS Architecture
1629
1630config ATH79_WDT
1631	tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1632	depends on ATH79 || (ARM && COMPILE_TEST)
1633	help
1634	  Hardware driver for the built-in watchdog timer on the Atheros
1635	  AR71XX/AR724X/AR913X SoCs.
1636
1637config BCM47XX_WDT
1638	tristate "Broadcom BCM47xx Watchdog Timer"
1639	depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1640	select WATCHDOG_CORE
1641	help
1642	  Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1643
1644config RC32434_WDT
1645	tristate "IDT RC32434 SoC Watchdog Timer"
1646	depends on MIKROTIK_RB532
1647	help
1648	  Hardware driver for the IDT RC32434 SoC built-in
1649	  watchdog timer.
1650
1651	  To compile this driver as a module, choose M here: the
1652	  module will be called rc32434_wdt.
1653
1654config INDYDOG
1655	tristate "Indy/I2 Hardware Watchdog"
1656	depends on SGI_HAS_INDYDOG
1657	help
1658	  Hardware driver for the Indy's/I2's watchdog. This is a
1659	  watchdog timer that will reboot the machine after a 60 second
1660	  timer expired and no process has written to /dev/watchdog during
1661	  that time.
1662
1663config JZ4740_WDT
1664	tristate "Ingenic jz4740 SoC hardware watchdog"
1665	depends on MIPS
1666	depends on COMMON_CLK
1667	select WATCHDOG_CORE
1668	select MFD_SYSCON
1669	help
1670	  Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1671
1672config WDT_MTX1
1673	tristate "MTX-1 Hardware Watchdog"
1674	depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1675	help
1676	  Hardware driver for the MTX-1 boards. This is a watchdog timer that
1677	  will reboot the machine after a 100 seconds timer expired.
1678
1679config SIBYTE_WDOG
1680	tristate "Sibyte SoC hardware watchdog"
1681	depends on CPU_SB1 || (MIPS && COMPILE_TEST)
1682	help
1683	  Watchdog driver for the built in watchdog hardware in Sibyte
1684	  SoC processors.  There are apparently two watchdog timers
1685	  on such processors; this driver supports only the first one,
1686	  because currently Linux only supports exporting one watchdog
1687	  to userspace.
1688
1689	  To compile this driver as a loadable module, choose M here.
1690	  The module will be called sb_wdog.
1691
1692config AR7_WDT
1693	tristate "TI AR7 Watchdog Timer"
1694	depends on AR7 || (MIPS && COMPILE_TEST)
1695	help
1696	  Hardware driver for the TI AR7 Watchdog Timer.
1697
1698config TXX9_WDT
1699	tristate "Toshiba TXx9 Watchdog Timer"
1700	depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
1701	select WATCHDOG_CORE
1702	help
1703	  Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1704
1705config OCTEON_WDT
1706	tristate "Cavium OCTEON SOC family Watchdog Timer"
1707	depends on CAVIUM_OCTEON_SOC
1708	default y
1709	select WATCHDOG_CORE
1710	select EXPORT_UASM if OCTEON_WDT = m
1711	help
1712	  Hardware driver for OCTEON's on chip watchdog timer.
1713	  Enables the watchdog for all cores running Linux. It
1714	  installs a NMI handler and pokes the watchdog based on an
1715	  interrupt.  On first expiration of the watchdog, the
1716	  interrupt handler pokes it.  The second expiration causes an
1717	  NMI that prints a message. The third expiration causes a
1718	  global soft reset.
1719
1720	  When userspace has /dev/watchdog open, no poking is done
1721	  from the first interrupt, it is then only poked when the
1722	  device is written.
1723
1724config BCM63XX_WDT
1725	tristate "Broadcom BCM63xx hardware watchdog"
1726	depends on BCM63XX
1727	help
1728	  Watchdog driver for the built in watchdog hardware in Broadcom
1729	  BCM63xx SoC.
1730
1731	  To compile this driver as a loadable module, choose M here.
1732	  The module will be called bcm63xx_wdt.
1733
1734config BCM2835_WDT
1735	tristate "Broadcom BCM2835 hardware watchdog"
1736	depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1737	select WATCHDOG_CORE
1738	help
1739	  Watchdog driver for the built in watchdog hardware in Broadcom
1740	  BCM2835 SoC.
1741
1742	  To compile this driver as a loadable module, choose M here.
1743	  The module will be called bcm2835_wdt.
1744
1745config BCM_KONA_WDT
1746	tristate "BCM Kona Watchdog"
1747	depends on ARCH_BCM_MOBILE || COMPILE_TEST
1748	select WATCHDOG_CORE
1749	help
1750	  Support for the watchdog timer on the following Broadcom BCM281xx
1751	  family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1752	  BCM28155 variants.
1753
1754	  Say 'Y' or 'M' here to enable the driver. The module will be called
1755	  bcm_kona_wdt.
1756
1757config BCM_KONA_WDT_DEBUG
1758	bool "DEBUGFS support for BCM Kona Watchdog"
1759	depends on BCM_KONA_WDT
1760	help
1761	  If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1762	  access to the driver's internal data structures as well as watchdog
1763	  timer hardware registres.
1764
1765	  If in doubt, say 'N'.
1766
1767config BCM7038_WDT
1768	tristate "BCM7038 Watchdog"
1769	select WATCHDOG_CORE
1770	depends on HAS_IOMEM
1771	depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1772	help
1773	 Watchdog driver for the built-in hardware in Broadcom 7038 and
1774	 later SoCs used in set-top boxes.  BCM7038 was made public
1775	 during the 2004 CES, and since then, many Broadcom chips use this
1776	 watchdog block, including some cable modem chips.
1777
1778config IMGPDC_WDT
1779	tristate "Imagination Technologies PDC Watchdog Timer"
1780	depends on HAS_IOMEM
1781	depends on MIPS || COMPILE_TEST
1782	select WATCHDOG_CORE
1783	help
1784	  Driver for Imagination Technologies PowerDown Controller
1785	  Watchdog Timer.
1786
1787	  To compile this driver as a loadable module, choose M here.
1788	  The module will be called imgpdc_wdt.
1789
1790config LANTIQ_WDT
1791	tristate "Lantiq SoC watchdog"
1792	depends on LANTIQ
1793	select WATCHDOG_CORE
1794	help
1795	  Hardware driver for the Lantiq SoC Watchdog Timer.
1796
1797config LOONGSON1_WDT
1798	tristate "Loongson1 SoC hardware watchdog"
1799	depends on MACH_LOONGSON32
1800	select WATCHDOG_CORE
1801	help
1802	  Hardware driver for the Loongson1 SoC Watchdog Timer.
1803
1804config RALINK_WDT
1805	tristate "Ralink SoC watchdog"
1806	select WATCHDOG_CORE
1807	depends on RALINK
1808	help
1809	  Hardware driver for the Ralink SoC Watchdog Timer.
1810
1811config MT7621_WDT
1812	tristate "Mediatek SoC watchdog"
1813	select WATCHDOG_CORE
1814	depends on SOC_MT7620 || SOC_MT7621
1815	help
1816	  Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1817
1818config PIC32_WDT
1819	tristate "Microchip PIC32 hardware watchdog"
1820	select WATCHDOG_CORE
1821	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1822	help
1823	  Watchdog driver for the built in watchdog hardware in a PIC32.
1824
1825	  Configuration bits must be set appropriately for the watchdog to be
1826	  controlled by this driver.
1827
1828	  To compile this driver as a loadable module, choose M here.
1829	  The module will be called pic32-wdt.
1830
1831config PIC32_DMT
1832	tristate "Microchip PIC32 Deadman Timer"
1833	select WATCHDOG_CORE
1834	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1835	help
1836	  Watchdog driver for PIC32 instruction fetch counting timer. This
1837	  specific timer is typically be used in mission critical and safety
1838	  critical applications, where any single failure of the software
1839	  functionality and sequencing must be detected.
1840
1841	  To compile this driver as a loadable module, choose M here.
1842	  The module will be called pic32-dmt.
1843
1844# PARISC Architecture
1845
1846# POWERPC Architecture
1847
1848config GEF_WDT
1849	tristate "GE Watchdog Timer"
1850	depends on GE_FPGA
1851	help
1852	  Watchdog timer found in a number of GE single board computers.
1853
1854config MPC5200_WDT
1855	bool "MPC52xx Watchdog Timer"
1856	depends on PPC_MPC52xx || COMPILE_TEST
1857	help
1858	  Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1859
1860config 8xxx_WDT
1861	tristate "MPC8xxx Platform Watchdog Timer"
1862	depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1863	select WATCHDOG_CORE
1864	help
1865	  This driver is for a SoC level watchdog that exists on some
1866	  Freescale PowerPC processors. So far this driver supports:
1867	  - MPC8xx watchdogs
1868	  - MPC83xx watchdogs
1869	  - MPC86xx watchdogs
1870
1871	  For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1872
1873config PIKA_WDT
1874	tristate "PIKA FPGA Watchdog"
1875	depends on WARP || (PPC64 && COMPILE_TEST)
1876	default y
1877	help
1878	  This enables the watchdog in the PIKA FPGA. Currently used on
1879	  the Warp platform.
1880
1881config BOOKE_WDT
1882	tristate "PowerPC Book-E Watchdog Timer"
1883	depends on BOOKE || 4xx
1884	select WATCHDOG_CORE
1885	help
1886	  Watchdog driver for PowerPC Book-E chips, such as the Freescale
1887	  MPC85xx SOCs and the IBM PowerPC 440.
1888
1889	  Please see Documentation/watchdog/watchdog-api.rst for
1890	  more information.
1891
1892config BOOKE_WDT_DEFAULT_TIMEOUT
1893	int "PowerPC Book-E Watchdog Timer Default Timeout"
1894	depends on BOOKE_WDT
1895	default 38 if PPC_FSL_BOOK3E
1896	range 0 63 if PPC_FSL_BOOK3E
1897	default 3 if !PPC_FSL_BOOK3E
1898	range 0 3 if !PPC_FSL_BOOK3E
1899	help
1900	  Select the default watchdog timer period to be used by the PowerPC
1901	  Book-E watchdog driver.  A watchdog "event" occurs when the bit
1902	  position represented by this number transitions from zero to one.
1903
1904	  For Freescale Book-E processors, this is a number between 0 and 63.
1905	  For other Book-E processors, this is a number between 0 and 3.
1906
1907	  The value can be overridden by the wdt_period command-line parameter.
1908
1909config MEN_A21_WDT
1910	tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1911	select WATCHDOG_CORE
1912	depends on GPIOLIB || COMPILE_TEST
1913	help
1914	  Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1915
1916	  The driver can also be built as a module. If so, the module will be
1917	  called mena21_wdt.
1918
1919	  If unsure select N here.
1920
1921# PPC64 Architecture
1922
1923config WATCHDOG_RTAS
1924	tristate "RTAS watchdog"
1925	depends on PPC_RTAS
1926	help
1927	  This driver adds watchdog support for the RTAS watchdog.
1928
1929	  To compile this driver as a module, choose M here. The module
1930	  will be called wdrtas.
1931
1932# S390 Architecture
1933
1934config DIAG288_WATCHDOG
1935	tristate "System z diag288 Watchdog"
1936	depends on S390
1937	select WATCHDOG_CORE
1938	help
1939	  IBM s/390 and zSeries machines running under z/VM 5.1 or later
1940	  provide a virtual watchdog timer to their guest that cause a
1941	  user define Control Program command to be executed after a
1942	  timeout.
1943	  LPAR provides a very similar interface. This driver handles
1944	  both.
1945
1946	  To compile this driver as a module, choose M here. The module
1947	  will be called diag288_wdt.
1948
1949# SUPERH (sh + sh64) Architecture
1950
1951config SH_WDT
1952	tristate "SuperH Watchdog"
1953	depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1954	select WATCHDOG_CORE
1955	help
1956	  This driver adds watchdog support for the integrated watchdog in the
1957	  SuperH processors. If you have one of these processors and wish
1958	  to have watchdog support enabled, say Y, otherwise say N.
1959
1960	  As a side note, saying Y here will automatically boost HZ to 1000
1961	  so that the timer has a chance to clear the overflow counter. On
1962	  slower systems (such as the SH-2 and SH-3) this will likely yield
1963	  some performance issues. As such, the WDT should be avoided here
1964	  unless it is absolutely necessary.
1965
1966	  To compile this driver as a module, choose M here: the
1967	  module will be called shwdt.
1968
1969# SPARC Architecture
1970
1971# SPARC64 Architecture
1972
1973config WATCHDOG_CP1XXX
1974	tristate "CP1XXX Hardware Watchdog support"
1975	depends on SPARC64 && PCI
1976	help
1977	  This is the driver for the hardware watchdog timers present on
1978	  Sun Microsystems CompactPCI models CP1400 and CP1500.
1979
1980	  To compile this driver as a module, choose M here: the
1981	  module will be called cpwatchdog.
1982
1983	  If you do not have a CompactPCI model CP1400 or CP1500, or
1984	  another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1985	  you should say N to this option.
1986
1987config WATCHDOG_RIO
1988	tristate "RIO Hardware Watchdog support"
1989	depends on SPARC64 && PCI
1990	help
1991	  Say Y here to support the hardware watchdog capability on Sun RIO
1992	  machines.  The watchdog timeout period is normally one minute but
1993	  can be changed with a boot-time parameter.
1994
1995config WATCHDOG_SUN4V
1996	tristate "Sun4v Watchdog support"
1997	select WATCHDOG_CORE
1998	depends on SPARC64
1999	help
2000	  Say Y here to support the hypervisor watchdog capability embedded
2001	  in the SPARC sun4v architecture.
2002
2003	  To compile this driver as a module, choose M here. The module will
2004	  be called sun4v_wdt.
2005
2006# XTENSA Architecture
2007
2008# Xen Architecture
2009
2010config XEN_WDT
2011	tristate "Xen Watchdog support"
2012	depends on XEN
2013	select WATCHDOG_CORE
2014	help
2015	  Say Y here to support the hypervisor watchdog capability provided
2016	  by Xen 4.0 and newer.  The watchdog timeout period is normally one
2017	  minute but can be changed with a boot-time parameter.
2018
2019config UML_WATCHDOG
2020	tristate "UML watchdog"
2021	depends on UML || COMPILE_TEST
2022
2023#
2024# ISA-based Watchdog Cards
2025#
2026
2027comment "ISA-based Watchdog Cards"
2028	depends on ISA
2029
2030config PCWATCHDOG
2031	tristate "Berkshire Products ISA-PC Watchdog"
2032	depends on ISA
2033	help
2034	  This is the driver for the Berkshire Products ISA-PC Watchdog card.
2035	  This card simply watches your kernel to make sure it doesn't freeze,
2036	  and if it does, it reboots your computer after a certain amount of
2037	  time. This driver is like the WDT501 driver but for different
2038	  hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>.
2039	  The PC watchdog cards can be ordered from <http://www.berkprod.com/>.
2040
2041	  To compile this driver as a module, choose M here: the
2042	  module will be called pcwd.
2043
2044	  Most people will say N.
2045
2046config MIXCOMWD
2047	tristate "Mixcom Watchdog"
2048	depends on ISA
2049	help
2050	  This is a driver for the Mixcom hardware watchdog cards.  This
2051	  watchdog simply watches your kernel to make sure it doesn't freeze,
2052	  and if it does, it reboots your computer after a certain amount of
2053	  time.
2054
2055	  To compile this driver as a module, choose M here: the
2056	  module will be called mixcomwd.
2057
2058	  Most people will say N.
2059
2060config WDT
2061	tristate "WDT Watchdog timer"
2062	depends on ISA
2063	help
2064	  If you have a WDT500P or WDT501P watchdog board, say Y here,
2065	  otherwise N. It is not possible to probe for this board, which means
2066	  that you have to inform the kernel about the IO port and IRQ that
2067	  is needed (you can do this via the io and irq parameters)
2068
2069	  To compile this driver as a module, choose M here: the
2070	  module will be called wdt.
2071
2072#
2073# PCI-based Watchdog Cards
2074#
2075
2076comment "PCI-based Watchdog Cards"
2077	depends on PCI
2078
2079config PCIPCWATCHDOG
2080	tristate "Berkshire Products PCI-PC Watchdog"
2081	depends on PCI
2082	help
2083	  This is the driver for the Berkshire Products PCI-PC Watchdog card.
2084	  This card simply watches your kernel to make sure it doesn't freeze,
2085	  and if it does, it reboots your computer after a certain amount of
2086	  time. The card can also monitor the internal temperature of the PC.
2087	  More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2088
2089	  To compile this driver as a module, choose M here: the
2090	  module will be called pcwd_pci.
2091
2092	  Most people will say N.
2093
2094config WDTPCI
2095	tristate "PCI-WDT500/501 Watchdog timer"
2096	depends on PCI
2097	help
2098	  If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2099
2100	  If you have a PCI-WDT501 watchdog board then you can enable the
2101	  temperature sensor by setting the type parameter to 501.
2102
2103	  If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2104	  can do this via the tachometer parameter. Only do this if you have a
2105	  fan tachometer actually set up.
2106
2107	  To compile this driver as a module, choose M here: the
2108	  module will be called wdt_pci.
2109
2110#
2111# USB-based Watchdog Cards
2112#
2113
2114comment "USB-based Watchdog Cards"
2115	depends on USB
2116
2117config USBPCWATCHDOG
2118	tristate "Berkshire Products USB-PC Watchdog"
2119	depends on USB
2120	help
2121	  This is the driver for the Berkshire Products USB-PC Watchdog card.
2122	  This card simply watches your kernel to make sure it doesn't freeze,
2123	  and if it does, it reboots your computer after a certain amount of
2124	  time. The card can also monitor the internal temperature of the PC.
2125	  More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2126
2127	  To compile this driver as a module, choose M here: the
2128	  module will be called pcwd_usb.
2129
2130	  Most people will say N.
2131
2132config KEEMBAY_WATCHDOG
2133	tristate "Intel Keem Bay SoC non-secure watchdog"
2134	depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST)
2135	select WATCHDOG_CORE
2136	help
2137	 This option enable support for an In-secure watchdog timer driver for
2138	 Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every
2139	 count unit. An interrupt will be triggered, when the count crosses
2140	 the threshold configured in the register.
2141
2142	 To compile this driver as a module, choose M here: the
2143	 module will be called keembay_wdt.
2144
2145endif # WATCHDOG
2146