xref: /linux/drivers/watchdog/Kconfig (revision 09dad69757b6600f6de5b547323e81235fc61d6c)
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 BD957XMUF_WATCHDOG
172	tristate "ROHM BD9576MUF and BD9573MUF PMIC Watchdog"
173	depends on MFD_ROHM_BD957XMUF
174	select WATCHDOG_CORE
175	help
176	  Support for the watchdog in the ROHM BD9576 and BD9573 PMICs.
177	  These PMIC ICs contain watchdog block which can be configured
178	  to toggle reset line if SoC fails to ping watchdog via GPIO.
179
180	  Say Y here to include support for the ROHM BD9576 or BD9573
181	  watchdog. Alternatively say M to compile the driver as a module,
182	  which will be called bd9576_wdt.
183
184config BD96801_WATCHDOG
185	tristate "ROHM BD96801 PMIC Watchdog"
186	depends on MFD_ROHM_BD96801
187	select WATCHDOG_CORE
188	help
189	  Support for the watchdog in the ROHM BD96801 PMIC. Watchdog can be
190	  configured to only generate IRQ or to trigger system reset via reset
191	  pin.
192
193	  Say Y here to include support for the ROHM BD96801 watchdog.
194	  Alternatively say M to compile the driver as a module,
195	  which will be called bd96801_wdt.
196
197config CROS_EC_WATCHDOG
198	tristate "ChromeOS EC-based watchdog"
199	select WATCHDOG_CORE
200	depends on CROS_EC
201	help
202	  Watchdog driver for Chromebook devices equipped with embedded controller.
203	  Trigger event is recorded in EC and checked on the subsequent boot.
204
205	  To compile this driver as a module, choose M here: the
206	  module will be called cros_ec_wdt.
207
208config DA9052_WATCHDOG
209	tristate "Dialog DA9052 Watchdog"
210	depends on PMIC_DA9052 || COMPILE_TEST
211	select WATCHDOG_CORE
212	help
213	  Support for the watchdog in the DA9052 PMIC. Watchdog trigger
214	  cause system reset.
215
216	  Say Y here to include support for the DA9052 watchdog.
217	  Alternatively say M to compile the driver as a module,
218	  which will be called da9052_wdt.
219
220config DA9055_WATCHDOG
221	tristate "Dialog Semiconductor DA9055 Watchdog"
222	depends on MFD_DA9055 || COMPILE_TEST
223	select WATCHDOG_CORE
224	help
225	  If you say yes here you get support for watchdog on the Dialog
226	  Semiconductor DA9055 PMIC.
227
228	  This driver can also be built as a module.  If so, the module
229	  will be called da9055_wdt.
230
231config DA9063_WATCHDOG
232	tristate "Dialog DA9063 Watchdog"
233	depends on MFD_DA9063 || COMPILE_TEST
234	depends on I2C
235	select WATCHDOG_CORE
236	help
237	  Support for the watchdog in the DA9063 PMIC.
238
239	  This driver can be built as a module. The module name is da9063_wdt.
240
241config DA9062_WATCHDOG
242	tristate "Dialog DA9062/61 Watchdog"
243	depends on MFD_DA9062 || COMPILE_TEST
244	depends on I2C
245	select WATCHDOG_CORE
246	help
247	  Support for the watchdog in the DA9062 and DA9061 PMICs.
248
249	  This driver can be built as a module. The module name is da9062_wdt.
250
251config GPIO_WATCHDOG
252	tristate "Watchdog device controlled through GPIO-line"
253	depends on OF_GPIO
254	select WATCHDOG_CORE
255	help
256	  If you say yes here you get support for watchdog device
257	  controlled through GPIO-line.
258
259config GPIO_WATCHDOG_ARCH_INITCALL
260	bool "Register the watchdog as early as possible"
261	depends on GPIO_WATCHDOG=y
262	help
263	  In some situations, the default initcall level (module_init)
264	  in not early enough in the boot process to avoid the watchdog
265	  to be triggered.
266	  If you say yes here, the initcall level would be raised to
267	  arch_initcall.
268	  If in doubt, say N.
269
270config LENOVO_SE10_WDT
271	tristate "Lenovo SE10 Watchdog"
272	depends on (X86 && DMI) || COMPILE_TEST
273	select WATCHDOG_CORE
274	help
275	  If you say yes here you get support for the watchdog
276	  functionality for the Lenovo SE10 platform.
277
278	  This driver can also be built as a module. If so, the module
279	  will be called lenovo-se10-wdt.
280
281config MENF21BMC_WATCHDOG
282	tristate "MEN 14F021P00 BMC Watchdog"
283	depends on MFD_MENF21BMC || COMPILE_TEST
284	depends on I2C
285	select WATCHDOG_CORE
286	help
287	  Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
288
289	  This driver can also be built as a module. If so the module
290	  will be called menf21bmc_wdt.
291
292config MENZ069_WATCHDOG
293	tristate "MEN 16Z069 Watchdog"
294	depends on MCB
295	select WATCHDOG_CORE
296	help
297	  Say Y here to include support for the MEN 16Z069 Watchdog.
298
299	  This driver can also be built as a module. If so the module
300	  will be called menz069_wdt.
301
302config WDAT_WDT
303	tristate "ACPI Watchdog Action Table (WDAT)"
304	depends on ACPI
305	select WATCHDOG_CORE
306	select ACPI_WATCHDOG
307	help
308	  This driver adds support for systems with ACPI Watchdog Action
309	  Table (WDAT) table. Servers typically have this but it can be
310	  found on some desktop machines as well. This driver will take
311	  over the native iTCO watchdog driver found on many Intel CPUs.
312
313	  To compile this driver as module, choose M here: the module will
314	  be called wdat_wdt.
315
316config WM831X_WATCHDOG
317	tristate "WM831x watchdog"
318	depends on MFD_WM831X
319	select WATCHDOG_CORE
320	help
321	  Support for the watchdog in the WM831x AudioPlus PMICs.  When
322	  the watchdog triggers the system will be reset.
323
324config WM8350_WATCHDOG
325	tristate "WM8350 watchdog"
326	depends on MFD_WM8350
327	select WATCHDOG_CORE
328	help
329	  Support for the watchdog in the WM8350 AudioPlus PMIC.  When
330	  the watchdog triggers the system will be reset.
331
332config XILINX_WATCHDOG
333	tristate "Xilinx Watchdog timer"
334	depends on HAS_IOMEM
335	select WATCHDOG_CORE
336	help
337	  Watchdog driver for the xps_timebase_wdt IP core.
338
339	  To compile this driver as a module, choose M here: the
340	  module will be called of_xilinx_wdt.
341
342config XILINX_WINDOW_WATCHDOG
343	tristate "Xilinx window watchdog timer"
344	depends on HAS_IOMEM
345	depends on ARM64 || COMPILE_TEST
346	select WATCHDOG_CORE
347	help
348	  Window watchdog driver for the versal_wwdt IP core.
349	  Window watchdog timer(WWDT) contains closed(first) and
350	  open(second) window with 32 bit width. Write to the watchdog
351	  timer within predefined window periods of time. This means
352	  a period that is not too soon and a period that is not too
353	  late. The WWDT has to be restarted within the open window time.
354	  If software tries to restart WWDT outside of the open window
355	  time period, it generates a reset.
356
357	  To compile this driver as a module, choose M here: the
358	  module will be called xilinx_wwdt.
359
360config ZIIRAVE_WATCHDOG
361	tristate "Zodiac RAVE Watchdog Timer"
362	depends on I2C
363	select WATCHDOG_CORE
364	help
365	  Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
366	  Processor.
367
368	  To compile this driver as a module, choose M here: the
369	  module will be called ziirave_wdt.
370
371config RAVE_SP_WATCHDOG
372	tristate "RAVE SP Watchdog timer"
373	depends on RAVE_SP_CORE
374	depends on NVMEM || !NVMEM
375	select WATCHDOG_CORE
376	help
377	  Support for the watchdog on RAVE SP device.
378
379config MLX_WDT
380	tristate "Mellanox Watchdog"
381	depends on MELLANOX_PLATFORM || COMPILE_TEST
382	select WATCHDOG_CORE
383	select REGMAP
384	help
385	  This is the driver for the hardware watchdog on Mellanox systems.
386	  If you are going to use it, say Y here, otherwise N.
387	  This driver can be used together with the watchdog daemon.
388	  It can also watch your kernel to make sure it doesn't freeze,
389	  and if it does, it reboots your system after a certain amount of
390	  time.
391
392	  To compile this driver as a module, choose M here: the
393	  module will be called mlx-wdt.
394
395config SL28CPLD_WATCHDOG
396	tristate "Kontron sl28cpld Watchdog"
397	depends on MFD_SL28CPLD || COMPILE_TEST
398	select WATCHDOG_CORE
399	help
400	  Say Y here to include support for the watchdog timer
401	  on the Kontron sl28 CPLD.
402
403	  To compile this driver as a module, choose M here: the
404	  module will be called sl28cpld_wdt.
405
406# ALPHA Architecture
407
408# ARM Architecture
409
410config ARM_SP805_WATCHDOG
411	tristate "ARM SP805 Watchdog"
412	depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
413	select WATCHDOG_CORE
414	help
415	  ARM Primecell SP805 Watchdog timer. This will reboot your system when
416	  the timeout is reached.
417
418config ARM_SBSA_WATCHDOG
419	tristate "ARM SBSA Generic Watchdog"
420	depends on ARM64
421	depends on ARM_ARCH_TIMER
422	select WATCHDOG_CORE
423	help
424	  ARM SBSA Generic Watchdog has two stage timeouts:
425	  the first signal (WS0) is for alerting the system by interrupt,
426	  the second one (WS1) is a real hardware reset.
427	  More details: ARM DEN0029B - Server Base System Architecture (SBSA)
428
429	  This driver can operate ARM SBSA Generic Watchdog as a single stage
430	  or a two stages watchdog, it depends on the module parameter "action".
431
432	  Note: the maximum timeout in the two stages mode is half of that in
433	  the single stage mode.
434
435	  To compile this driver as module, choose M here: The module
436	  will be called sbsa_gwdt.
437
438config ARMADA_37XX_WATCHDOG
439	tristate "Armada 37xx watchdog"
440	depends on ARCH_MVEBU || COMPILE_TEST
441	depends on HAS_IOMEM
442	select MFD_SYSCON
443	select WATCHDOG_CORE
444	help
445	   Say Y here to include support for the watchdog timer found on
446	   Marvell Armada 37xx SoCs.
447	   To compile this driver as a module, choose M here: the
448	   module will be called armada_37xx_wdt.
449
450config ASM9260_WATCHDOG
451	tristate "Alphascale ASM9260 watchdog"
452	depends on MACH_ASM9260 || COMPILE_TEST
453	depends on OF
454	select WATCHDOG_CORE
455	select RESET_CONTROLLER
456	help
457	  Watchdog timer embedded into Alphascale asm9260 chips. This will
458	  reboot your system when the timeout is reached.
459
460config AT91RM9200_WATCHDOG
461	tristate "AT91RM9200 watchdog"
462	depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
463	help
464	  Watchdog timer embedded into AT91RM9200 chips. This will reboot your
465	  system when the timeout is reached.
466
467config AT91SAM9X_WATCHDOG
468	tristate "AT91SAM9X / AT91CAP9 watchdog"
469	depends on ARCH_AT91 || COMPILE_TEST
470	select WATCHDOG_CORE
471	help
472	  Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
473	  reboot your system when the timeout is reached.
474
475config SAMA5D4_WATCHDOG
476	tristate "Atmel SAMA5D4 Watchdog Timer"
477	depends on ARCH_AT91 || COMPILE_TEST
478	select WATCHDOG_CORE
479	help
480	  Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
481	  Its Watchdog Timer Mode Register can be written more than once.
482	  This will reboot your system when the timeout is reached.
483
484config CADENCE_WATCHDOG
485	tristate "Cadence Watchdog Timer"
486	depends on HAS_IOMEM
487	select WATCHDOG_CORE
488	help
489	  Say Y here if you want to include support for the watchdog
490	  timer in the Xilinx Zynq.
491
492config 21285_WATCHDOG
493	tristate "DC21285 watchdog"
494	depends on FOOTBRIDGE
495	help
496	  The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
497	  here if you wish to use this. Alternatively say M to compile the
498	  driver as a module, which will be called wdt285.
499
500	  This driver does not work on all machines. In particular, early CATS
501	  boards have hardware problems that will cause the machine to simply
502	  lock up if the watchdog fires.
503
504	  "If in doubt, leave it out" - say N.
505
506config 977_WATCHDOG
507	tristate "NetWinder WB83C977 watchdog"
508	depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
509	depends on HAS_IOPORT
510	help
511	  Say Y here to include support for the WB977 watchdog included in
512	  NetWinder machines. Alternatively say M to compile the driver as
513	  a module, which will be called wdt977.
514
515	  Not sure? It's safe to say N.
516
517config FTWDT010_WATCHDOG
518	tristate "Faraday Technology FTWDT010 watchdog"
519	depends on ARM || COMPILE_TEST
520	select WATCHDOG_CORE
521	default ARCH_GEMINI
522	help
523	  Say Y here if to include support for the Faraday Technology
524	  FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
525	  family of devices.
526
527	  To compile this driver as a module, choose M here: the
528	  module will be called ftwdt010_wdt.
529
530config IXP4XX_WATCHDOG
531	tristate "IXP4xx Watchdog"
532	depends on ARCH_IXP4XX || (ARM && COMPILE_TEST)
533	select WATCHDOG_CORE
534	help
535	  Say Y here if to include support for the watchdog timer
536	  in the Intel IXP4xx network processors. This driver can
537	  be built as a module by choosing M. The module will
538	  be called ixp4xx_wdt.
539
540	  Note: The internal IXP4xx watchdog does a soft CPU reset
541	  which doesn't reset any peripherals. There are circumstances
542	  where the watchdog will fail to reset the board correctly
543	  (e.g., if the boot ROM is in an unreadable state).
544
545	  Say N if you are unsure.
546
547config S3C2410_WATCHDOG
548	tristate "S3C6410/S5Pv210/Exynos Watchdog"
549	depends on ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
550	select WATCHDOG_CORE
551	help
552	  Watchdog timer block in the Samsung S3C64xx, S5Pv210 and Exynos
553	  SoCs. This will reboot the system when the timer expires with
554	  the watchdog enabled.
555
556	  The driver is limited by the speed of the system's PCLK
557	  signal, so with reasonably fast systems (PCLK around 50-66MHz)
558	  then watchdog intervals of over approximately 20seconds are
559	  unavailable.
560
561	  Choose Y/M here only if you build for such Samsung SoC.
562	  The driver can be built as a module by choosing M, and will
563	  be called s3c2410_wdt.
564
565config SA1100_WATCHDOG
566	tristate "SA1100/PXA2xx watchdog"
567	depends on ARCH_SA1100 || ARCH_PXA || COMPILE_TEST
568	help
569	  Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
570	  reboot your system when timeout is reached.
571
572	  NOTE: once enabled, this timer cannot be disabled.
573
574	  To compile this driver as a module, choose M here: the
575	  module will be called sa1100_wdt.
576
577config DW_WATCHDOG
578	tristate "Synopsys DesignWare watchdog"
579	depends on HAS_IOMEM
580	select WATCHDOG_CORE
581	help
582	  Say Y here if to include support for the Synopsys DesignWare
583	  watchdog timer found in many chips.
584	  To compile this driver as a module, choose M here: the
585	  module will be called dw_wdt.
586
587config EP93XX_WATCHDOG
588	tristate "EP93xx Watchdog"
589	depends on ARCH_EP93XX || COMPILE_TEST
590	select WATCHDOG_CORE
591	help
592	  Say Y here if to include support for the watchdog timer
593	  embedded in the Cirrus Logic EP93xx family of devices.
594
595	  To compile this driver as a module, choose M here: the
596	  module will be called ep93xx_wdt.
597
598config OMAP_WATCHDOG
599	tristate "OMAP Watchdog"
600	depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
601	select WATCHDOG_CORE
602	help
603	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.
604	  Say 'Y' here to enable the
605	  OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
606
607config PNX4008_WATCHDOG
608	tristate "LPC32XX Watchdog"
609	depends on ARCH_LPC32XX || COMPILE_TEST
610	select WATCHDOG_CORE
611	help
612	  Say Y here if to include support for the watchdog timer
613	  in the LPC32XX processor.
614	  This driver can be built as a module by choosing M. The module
615	  will be called pnx4008_wdt.
616
617	  Say N if you are unsure.
618
619config DAVINCI_WATCHDOG
620	tristate "DaVinci watchdog"
621	depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
622	select WATCHDOG_CORE
623	help
624	  Say Y here if to include support for the watchdog timer
625	  in the DaVinci DM644x/DM646x or Keystone processors.
626	  To compile this driver as a module, choose M here: the
627	  module will be called davinci_wdt.
628
629	  NOTE: once enabled, this timer cannot be disabled.
630	  Say N if you are unsure.
631
632config K3_RTI_WATCHDOG
633	tristate "Texas Instruments K3 RTI watchdog"
634	depends on ARCH_K3 || COMPILE_TEST
635	select WATCHDOG_CORE
636	help
637	  Say Y here if you want to include support for the K3 watchdog
638	  timer (RTI module) available in the K3 generation of processors.
639
640config ORION_WATCHDOG
641	tristate "Orion watchdog"
642	depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST
643	depends on ARM
644	select WATCHDOG_CORE
645	help
646	  Say Y here if to include support for the watchdog timer
647	  in the Marvell Orion5x and Kirkwood ARM SoCs.
648	  To compile this driver as a module, choose M here: the
649	  module will be called orion_wdt.
650
651config RN5T618_WATCHDOG
652	tristate "Ricoh RN5T618 watchdog"
653	depends on MFD_RN5T618 || COMPILE_TEST
654	select WATCHDOG_CORE
655	help
656	  If you say yes here you get support for watchdog on the Ricoh
657	  RN5T618 PMIC.
658
659	  This driver can also be built as a module.  If so, the module
660	  will be called rn5t618_wdt.
661
662config SUNXI_WATCHDOG
663	tristate "Allwinner SoCs watchdog support"
664	depends on ARCH_SUNXI || COMPILE_TEST
665	select WATCHDOG_CORE
666	help
667	  Say Y here to include support for the watchdog timer
668	  in Allwinner SoCs.
669	  To compile this driver as a module, choose M here: the
670	  module will be called sunxi_wdt.
671
672config NPCM7XX_WATCHDOG
673	tristate "Nuvoton NPCM750 watchdog"
674	depends on ARCH_NPCM || COMPILE_TEST
675	default y if ARCH_NPCM7XX
676	select WATCHDOG_CORE
677	help
678	  Say Y here to include Watchdog timer support for the
679	  watchdog embedded into the NPCM7xx.
680	  This watchdog is used to reset the system and thus cannot be
681	  compiled as a module.
682
683config TWL4030_WATCHDOG
684	tristate "TWL4030 Watchdog"
685	depends on TWL4030_CORE
686	select WATCHDOG_CORE
687	help
688	  Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
689	  watchdog timer support for TWL4030 chips.
690
691config STMP3XXX_RTC_WATCHDOG
692	tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
693	depends on RTC_DRV_STMP || COMPILE_TEST
694	select WATCHDOG_CORE
695	help
696	  Say Y here to include support for the watchdog timer inside
697	  the RTC for the STMP37XX/378X or i.MX23/28 SoC.
698	  To compile this driver as a module, choose M here: the
699	  module will be called stmp3xxx_rtc_wdt.
700
701config TS4800_WATCHDOG
702	tristate "TS-4800 Watchdog"
703	depends on HAS_IOMEM && OF
704	depends on SOC_IMX51 || COMPILE_TEST
705	select WATCHDOG_CORE
706	select MFD_SYSCON
707	help
708	  Technologic Systems TS-4800 has watchdog timer implemented in
709	  an external FPGA. Say Y here if you want to support for the
710	  watchdog timer on TS-4800 board.
711
712config TS72XX_WATCHDOG
713	tristate "TS-72XX SBC Watchdog"
714	depends on MACH_TS72XX || COMPILE_TEST
715	select WATCHDOG_CORE
716	help
717	  Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
718	  watchdog timer implemented in a external CPLD chip. Say Y here
719	  if you want to support for the watchdog timer on TS-72XX boards.
720
721	  To compile this driver as a module, choose M here: the
722	  module will be called ts72xx_wdt.
723
724config MAX63XX_WATCHDOG
725	tristate "Max63xx watchdog"
726	depends on HAS_IOMEM
727	select WATCHDOG_CORE
728	help
729	  Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
730
731config MAX77620_WATCHDOG
732	tristate "Maxim Max77620 Watchdog Timer"
733	depends on MFD_MAX77620 || MFD_MAX77714 || COMPILE_TEST
734	select WATCHDOG_CORE
735	help
736	  This is the driver for the Max77620 watchdog timer.
737	  Say 'Y' here to enable the watchdog timer support for
738	  MAX77620 chips. To compile this driver as a module,
739	  choose M here: the module will be called max77620_wdt.
740
741config IMX2_WDT
742	tristate "IMX2+ Watchdog"
743	depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
744	select REGMAP_MMIO
745	select WATCHDOG_CORE
746	help
747	  This is the driver for the hardware watchdog
748	  on the Freescale IMX2 and later processors.
749	  If you have one of these processors and wish to have
750	  watchdog support enabled, say Y, otherwise say N.
751
752	  To compile this driver as a module, choose M here: the
753	  module will be called imx2_wdt.
754
755config IMX_SC_WDT
756	tristate "IMX SC Watchdog"
757	depends on HAVE_ARM_SMCCC
758	depends on IMX_SCU || COMPILE_TEST
759	select WATCHDOG_CORE
760	help
761	  This is the driver for the system controller watchdog
762	  on the NXP i.MX SoCs with system controller inside, the
763	  watchdog driver will call ARM SMC API and trap into
764	  ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
765	  will request system controller to execute the operations.
766	  If you have one of these processors and wish to have
767	  watchdog support enabled, say Y, otherwise say N.
768
769	  To compile this driver as a module, choose M here: the
770	  module will be called imx_sc_wdt.
771
772config IMX7ULP_WDT
773	tristate "IMX7ULP Watchdog"
774	depends on ARCH_MXC || COMPILE_TEST
775	select WATCHDOG_CORE
776	help
777	  This is the driver for the hardware watchdog on the Freescale
778	  IMX7ULP and later processors. If you have one of these
779	  processors and wish to have watchdog support enabled,
780	  say Y, otherwise say N.
781
782	  To compile this driver as a module, choose M here: the
783	  module will be called imx7ulp_wdt.
784
785config DB500_WATCHDOG
786	tristate "ST-Ericsson DB800 watchdog"
787	depends on MFD_DB8500_PRCMU
788	select WATCHDOG_CORE
789	default y
790	help
791	  Say Y here to include Watchdog timer support for the watchdog
792	  existing in the prcmu of ST-Ericsson DB8500 platform.
793
794	  To compile this driver as a module, choose M here: the
795	  module will be called db500_wdt.
796
797config RETU_WATCHDOG
798	tristate "Retu watchdog"
799	depends on MFD_RETU
800	select WATCHDOG_CORE
801	help
802	  Retu watchdog driver for Nokia Internet Tablets (770, N800,
803	  N810). At least on N800 the watchdog cannot be disabled, so
804	  this driver is essential and you should enable it.
805
806	  To compile this driver as a module, choose M here: the
807	  module will be called retu_wdt.
808
809config MOXART_WDT
810	tristate "MOXART watchdog"
811	depends on ARCH_MOXART || COMPILE_TEST
812	help
813	  Say Y here to include Watchdog timer support for the watchdog
814	  existing on the MOXA ART SoC series platforms.
815
816	  To compile this driver as a module, choose M here: the
817	  module will be called moxart_wdt.
818
819config ST_LPC_WATCHDOG
820	tristate "STMicroelectronics LPC Watchdog"
821	depends on ARCH_STI || COMPILE_TEST
822	depends on OF
823	select WATCHDOG_CORE
824	help
825	  Say Y here to include STMicroelectronics Low Power Controller
826	  (LPC) based Watchdog timer support.
827
828	  To compile this driver as a module, choose M here: the
829	  module will be called st_lpc_wdt.
830
831config TEGRA_WATCHDOG
832	tristate "Tegra watchdog"
833	depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
834	select WATCHDOG_CORE
835	help
836	  Say Y here to include support for the watchdog timer
837	  embedded in NVIDIA Tegra SoCs.
838
839	  To compile this driver as a module, choose M here: the
840	  module will be called tegra_wdt.
841
842config QCOM_WDT
843	tristate "QCOM watchdog"
844	depends on HAS_IOMEM
845	depends on ARCH_QCOM || COMPILE_TEST
846	select WATCHDOG_CORE
847	help
848	  Say Y here to include Watchdog timer support for the watchdog found
849	  on QCOM chipsets.  Currently supported targets are the MSM8960,
850	  APQ8064, and IPQ8064.
851
852	  To compile this driver as a module, choose M here: the
853	  module will be called qcom_wdt.
854
855config MESON_GXBB_WATCHDOG
856	tristate "Amlogic Meson GXBB SoCs watchdog support"
857	depends on ARCH_MESON || COMPILE_TEST
858	select WATCHDOG_CORE
859	help
860	  Say Y here to include support for the watchdog timer
861	  in Amlogic Meson GXBB SoCs.
862	  To compile this driver as a module, choose M here: the
863	  module will be called meson_gxbb_wdt.
864
865config MESON_WATCHDOG
866	tristate "Amlogic Meson SoCs watchdog support"
867	depends on ARCH_MESON || COMPILE_TEST
868	select WATCHDOG_CORE
869	help
870	  Say Y here to include support for the watchdog timer
871	  in Amlogic Meson SoCs.
872	  To compile this driver as a module, choose M here: the
873	  module will be called meson_wdt.
874
875config MEDIATEK_WATCHDOG
876	tristate "Mediatek SoCs watchdog support"
877	depends on ARCH_MEDIATEK || COMPILE_TEST
878	default ARCH_MEDIATEK
879	select WATCHDOG_CORE
880	select RESET_CONTROLLER
881	help
882	  Say Y here to include support for the watchdog timer
883	  in Mediatek SoCs.
884	  To compile this driver as a module, choose M here: the
885	  module will be called mtk_wdt.
886
887config DIGICOLOR_WATCHDOG
888	tristate "Conexant Digicolor SoCs watchdog support"
889	depends on ARCH_DIGICOLOR || COMPILE_TEST
890	select WATCHDOG_CORE
891	help
892	  Say Y here to include support for the watchdog timer
893	  in Conexant Digicolor SoCs.
894	  To compile this driver as a module, choose M here: the
895	  module will be called digicolor_wdt.
896
897config ARM_SMC_WATCHDOG
898	tristate "ARM Secure Monitor Call based watchdog support"
899	depends on ARM || ARM64
900	depends on OF
901	depends on HAVE_ARM_SMCCC
902	select WATCHDOG_CORE
903	help
904	  Say Y here to include support for a watchdog timer
905	  implemented by the EL3 Secure Monitor on ARM platforms.
906	  Requires firmware support.
907	  To compile this driver as a module, choose M here: the
908	  module will be called arm_smc_wdt.
909
910config LPC18XX_WATCHDOG
911	tristate "LPC18xx/43xx Watchdog"
912	depends on ARCH_LPC18XX || COMPILE_TEST
913	depends on HAS_IOMEM
914	select WATCHDOG_CORE
915	help
916	  Say Y here if to include support for the watchdog timer
917	  in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
918	  processors.
919	  To compile this driver as a module, choose M here: the
920	  module will be called lpc18xx_wdt.
921
922config RENESAS_WDT
923	tristate "Renesas WDT Watchdog"
924	depends on ARCH_RENESAS || COMPILE_TEST
925	select WATCHDOG_CORE
926	help
927	  This driver adds watchdog support for the integrated watchdogs in the
928	  Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
929
930config RENESAS_RZAWDT
931	tristate "Renesas RZ/A WDT Watchdog"
932	depends on ARCH_RENESAS || COMPILE_TEST
933	select WATCHDOG_CORE
934	help
935	  This driver adds watchdog support for the integrated watchdogs in the
936	  Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
937
938config RENESAS_RZN1WDT
939	tristate "Renesas RZ/N1 watchdog"
940	depends on ARCH_RENESAS || COMPILE_TEST
941	select WATCHDOG_CORE
942	help
943	  This driver adds watchdog support for the integrated watchdogs in the
944	  Renesas RZ/N1 SoCs. These watchdogs can be used to reset a system.
945
946config RENESAS_RZG2LWDT
947	tristate "Renesas RZ/G2L WDT Watchdog"
948	depends on ARCH_RENESAS || COMPILE_TEST
949	select WATCHDOG_CORE
950	help
951	  This driver adds watchdog support for the integrated watchdogs in the
952	  Renesas RZ/G2L SoCs. These watchdogs can be used to reset a system.
953
954config ASPEED_WATCHDOG
955	tristate "Aspeed BMC watchdog support"
956	depends on ARCH_ASPEED || COMPILE_TEST
957	select WATCHDOG_CORE
958	help
959	  Say Y here to include support for the watchdog timer
960	  in Aspeed BMC SoCs.
961
962	  This driver is required to reboot the SoC.
963
964	  To compile this driver as a module, choose M here: the
965	  module will be called aspeed_wdt.
966
967config STM32_WATCHDOG
968	tristate "STM32 Independent WatchDoG (IWDG) support"
969	depends on ARCH_STM32 || COMPILE_TEST
970	select WATCHDOG_CORE
971	default y
972	help
973	  Say Y here to include support for the watchdog timer
974	  in stm32 SoCs.
975
976	  To compile this driver as a module, choose M here: the
977	  module will be called stm32_iwdg.
978
979config STPMIC1_WATCHDOG
980	tristate "STPMIC1 PMIC watchdog support"
981	depends on MFD_STPMIC1
982	select WATCHDOG_CORE
983	help
984	  Say Y here to include watchdog support embedded into STPMIC1 PMIC.
985	  If the watchdog timer expires, stpmic1 will shut down all its power
986	  supplies.
987
988	  To compile this driver as a module, choose M here: the
989	  module will be called spmic1_wdt.
990
991config UNIPHIER_WATCHDOG
992	tristate "UniPhier watchdog support"
993	depends on ARCH_UNIPHIER || COMPILE_TEST
994	depends on OF && MFD_SYSCON
995	select WATCHDOG_CORE
996	help
997	  Say Y here to include support watchdog timer embedded
998	  into the UniPhier system.
999
1000	  To compile this driver as a module, choose M here: the
1001	  module will be called uniphier_wdt.
1002
1003config RTD119X_WATCHDOG
1004	bool "Realtek RTD119x/RTD129x watchdog support"
1005	depends on ARCH_REALTEK || COMPILE_TEST
1006	depends on OF
1007	select WATCHDOG_CORE
1008	default ARCH_REALTEK
1009	help
1010	  Say Y here to include support for the watchdog timer in
1011	  Realtek RTD1295 SoCs.
1012
1013config REALTEK_OTTO_WDT
1014	tristate "Realtek Otto MIPS watchdog support"
1015	depends on MACH_REALTEK_RTL || COMPILE_TEST
1016	depends on COMMON_CLK
1017	select WATCHDOG_CORE
1018	default MACH_REALTEK_RTL
1019	help
1020	  Say Y here to include support for the watchdog timer on Realtek
1021	  RTL838x, RTL839x, RTL930x SoCs. This watchdog has pretimeout
1022	  notifications and system reset on timeout.
1023
1024	  When built as a module this will be called realtek_otto_wdt.
1025
1026config SPRD_WATCHDOG
1027	tristate "Spreadtrum watchdog support"
1028	depends on ARCH_SPRD || COMPILE_TEST
1029	select WATCHDOG_CORE
1030	help
1031	  Say Y here to include watchdog timer supported
1032	  by Spreadtrum system.
1033
1034config PM8916_WATCHDOG
1035	tristate "QCOM PM8916 pmic watchdog"
1036	depends on OF && MFD_SPMI_PMIC
1037	select WATCHDOG_CORE
1038	help
1039	  Say Y here to include support watchdog timer embedded into the
1040	  pm8916 module.
1041
1042config VISCONTI_WATCHDOG
1043	tristate "Toshiba Visconti series watchdog support"
1044	depends on ARCH_VISCONTI || COMPILE_TEST
1045	select WATCHDOG_CORE
1046	help
1047	  Say Y here to include support for the watchdog timer in Toshiba
1048	  Visconti SoCs.
1049
1050config MSC313E_WATCHDOG
1051	tristate "MStar MSC313e watchdog"
1052	depends on ARCH_MSTARV7 || COMPILE_TEST
1053	select WATCHDOG_CORE
1054	help
1055	  Say Y here to include support for the Watchdog timer embedded
1056	  into MStar MSC313e chips. This will reboot your system when the
1057	  timeout is reached.
1058
1059	  To compile this driver as a module, choose M here: the
1060	  module will be called msc313e_wdt.
1061
1062config APPLE_WATCHDOG
1063	tristate "Apple SoC watchdog"
1064	depends on ARCH_APPLE || COMPILE_TEST
1065	select WATCHDOG_CORE
1066	help
1067	  Say Y here to include support for the Watchdog found in Apple
1068	  SoCs such as the M1. Next to the common watchdog features this
1069	  driver is also required in order to reboot these SoCs.
1070
1071	  To compile this driver as a module, choose M here: the
1072	  module will be called apple_wdt.
1073
1074config SUNPLUS_WATCHDOG
1075	tristate "Sunplus watchdog support"
1076	depends on ARCH_SUNPLUS || COMPILE_TEST
1077	select WATCHDOG_CORE
1078	help
1079	  Say Y here to include support for the watchdog timer
1080	  in Sunplus SoCs.
1081
1082	  To compile this driver as a module, choose M here: the
1083	  module will be called sunplus_wdt.
1084
1085# X86 (i386 + ia64 + x86_64) Architecture
1086
1087config ACQUIRE_WDT
1088	tristate "Acquire SBC Watchdog Timer"
1089	depends on X86
1090	help
1091	  This is the driver for the hardware watchdog on Single Board
1092	  Computers produced by Acquire Inc (and others). This watchdog
1093	  simply watches your kernel to make sure it doesn't freeze, and if
1094	  it does, it reboots your computer after a certain amount of time.
1095
1096	  To compile this driver as a module, choose M here: the
1097	  module will be called acquirewdt.
1098
1099	  Most people will say N.
1100
1101config ADVANTECH_WDT
1102	tristate "Advantech SBC Watchdog Timer"
1103	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1104	help
1105	  If you are configuring a Linux kernel for the Advantech single-board
1106	  computer, say `Y' here to support its built-in watchdog timer
1107	  feature. More information can be found at
1108	  <https://www.advantech.com.tw/products/>
1109
1110config ADVANTECH_EC_WDT
1111	tristate "Advantech Embedded Controller Watchdog Timer"
1112	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1113	select ISA_BUS_API
1114	select WATCHDOG_CORE
1115	help
1116		This driver supports Advantech products with ITE based Embedded Controller.
1117		It does not support Advantech products with other ECs or without EC.
1118
1119config ALIM1535_WDT
1120	tristate "ALi M1535 PMU Watchdog Timer"
1121	depends on (X86 || COMPILE_TEST) && PCI
1122	help
1123	  This is the driver for the hardware watchdog on the ALi M1535 PMU.
1124
1125	  To compile this driver as a module, choose M here: the
1126	  module will be called alim1535_wdt.
1127
1128	  Most people will say N.
1129
1130config ALIM7101_WDT
1131	tristate "ALi M7101 PMU Computer Watchdog"
1132	depends on PCI
1133	help
1134	  This is the driver for the hardware watchdog on the ALi M7101 PMU
1135	  as used in the x86 Cobalt servers and also found in some
1136	  SPARC Netra servers too.
1137
1138	  To compile this driver as a module, choose M here: the
1139	  module will be called alim7101_wdt.
1140
1141	  Most people will say N.
1142
1143config EBC_C384_WDT
1144	tristate "WinSystems EBC-C384 Watchdog Timer"
1145	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1146	select ISA_BUS_API
1147	select WATCHDOG_CORE
1148	help
1149	  Enables watchdog timer support for the watchdog timer on the
1150	  WinSystems EBC-C384 motherboard. The timeout may be configured via
1151	  the timeout module parameter.
1152
1153config EXAR_WDT
1154	tristate "Exar Watchdog Timer"
1155	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1156	select WATCHDOG_CORE
1157	help
1158	  Enables watchdog timer support for the watchdog timer present
1159	  in some Exar/MaxLinear UART chips like the XR28V38x.
1160
1161	  To compile this driver as a module, choose M here: the
1162	  module will be called exar_wdt.
1163
1164config F71808E_WDT
1165	tristate "Fintek F718xx, F818xx Super I/O Watchdog"
1166	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1167	select WATCHDOG_CORE
1168	help
1169	  This is the driver for the hardware watchdog on the Fintek F71808E,
1170	  F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and
1171	  F81866 Super I/O controllers.
1172
1173	  You can compile this driver directly into the kernel, or use
1174	  it as a module.  The module will be called f71808e_wdt.
1175
1176config SP5100_TCO
1177	tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
1178	depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT
1179	select WATCHDOG_CORE
1180	help
1181	  Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
1182	  (Total Cost of Ownership) timer is a watchdog timer that will reboot
1183	  the machine after its expiration. The expiration time can be
1184	  configured with the "heartbeat" parameter.
1185
1186	  To compile this driver as a module, choose M here: the
1187	  module will be called sp5100_tco.
1188
1189config GEODE_WDT
1190	tristate "AMD Geode CS5535/CS5536 Watchdog"
1191	depends on CS5535_MFGPT
1192	help
1193	  This driver enables a watchdog capability built into the
1194	  CS5535/CS5536 companion chips for the AMD Geode GX and LX
1195	  processors.  This watchdog watches your kernel to make sure
1196	  it doesn't freeze, and if it does, it reboots your computer after
1197	  a certain amount of time.
1198
1199	  You can compile this driver directly into the kernel, or use
1200	  it as a module.  The module will be called geodewdt.
1201
1202config SC520_WDT
1203	tristate "AMD Elan SC520 processor Watchdog"
1204	depends on MELAN || COMPILE_TEST
1205	help
1206	  This is the driver for the hardware watchdog built in to the
1207	  AMD "Elan" SC520 microcomputer commonly used in embedded systems.
1208	  This watchdog simply watches your kernel to make sure it doesn't
1209	  freeze, and if it does, it reboots your computer after a certain
1210	  amount of time.
1211
1212	  You can compile this driver directly into the kernel, or use
1213	  it as a module.  The module will be called sc520_wdt.
1214
1215config SBC_FITPC2_WATCHDOG
1216	tristate "Compulab SBC-FITPC2 watchdog"
1217	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1218	help
1219	  This is the driver for the built-in watchdog timer on the fit-PC2,
1220	  fit-PC2i, CM-iAM single-board computers made by Compulab.
1221
1222	  It's possible to enable the watchdog timer either from BIOS (F2) or
1223	  from booted Linux.
1224	  When the "Watchdog Timer Value" is enabled one can set 31-255 seconds
1225	  operational range.
1226
1227	  Entering BIOS setup temporarily disables watchdog operation regardless
1228	  of current state, so system will not be restarted while user is in
1229	  BIOS setup.
1230
1231	  Once the watchdog is enabled the system will be restarted every
1232	  "Watchdog Timer Value" period, so to prevent it user can restart or
1233	  disable the watchdog.
1234
1235	  To compile this driver as a module, choose M here: the
1236	  module will be called sbc_fitpc2_wdt.
1237
1238	  Most people will say N.
1239
1240config EUROTECH_WDT
1241	tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1242	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1243	help
1244	  Enable support for the watchdog timer on the Eurotech CPU-1220 and
1245	  CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
1246	  information are at <http://www.eurotech.it/>.
1247
1248config IB700_WDT
1249	tristate "IB700 SBC Watchdog Timer"
1250	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1251	help
1252	  This is the driver for the hardware watchdog on the IB700 Single
1253	  Board Computer produced by TMC Technology (www.tmc-uk.com). This
1254	  watchdog simply watches your kernel to make sure it doesn't freeze,
1255	  and if it does, it reboots your computer after a certain amount of time.
1256
1257	  This driver is like the WDT501 driver but for slightly different
1258	  hardware.
1259
1260	  To compile this driver as a module, choose M here: the
1261	  module will be called ib700wdt.
1262
1263	  Most people will say N.
1264
1265config IBMASR
1266	tristate "IBM Automatic Server Restart"
1267	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1268	help
1269	  This is the driver for the IBM Automatic Server Restart watchdog
1270	  timer built-in into some eServer xSeries machines.
1271
1272	  To compile this driver as a module, choose M here: the
1273	  module will be called ibmasr.
1274
1275config WAFER_WDT
1276	tristate "ICP Single Board Computer Watchdog Timer"
1277	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1278	help
1279	  This is a driver for the hardware watchdog on the ICP Single
1280	  Board Computer. This driver is working on (at least) the following
1281	  IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1282
1283	  To compile this driver as a module, choose M here: the
1284	  module will be called wafer5823wdt.
1285
1286config I6300ESB_WDT
1287	tristate "Intel 6300ESB Timer/Watchdog"
1288	depends on PCI
1289	select WATCHDOG_CORE
1290	help
1291	  Hardware driver for the watchdog timer built into the Intel
1292	  6300ESB controller hub.
1293
1294	  To compile this driver as a module, choose M here: the
1295	  module will be called i6300esb.
1296
1297config IE6XX_WDT
1298	tristate "Intel Atom E6xx Watchdog"
1299	depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT
1300	select WATCHDOG_CORE
1301	select MFD_CORE
1302	select LPC_SCH
1303	help
1304	  Hardware driver for the watchdog timer built into the Intel
1305	  Atom E6XX (TunnelCreek) processor.
1306
1307	  To compile this driver as a module, choose M here: the
1308	  module will be called ie6xx_wdt.
1309
1310config INTEL_MID_WATCHDOG
1311	tristate "Intel MID Watchdog Timer"
1312	depends on X86_INTEL_MID
1313	select WATCHDOG_CORE
1314	help
1315	  Watchdog timer driver built into the Intel SCU for Intel MID
1316	  Platforms.
1317
1318	  This driver currently supports only the watchdog evolution
1319	  implementation in SCU, available for Merrifield generation.
1320
1321	  To compile this driver as a module, choose M here.
1322
1323config ITCO_WDT
1324	tristate "Intel TCO Timer/Watchdog"
1325	depends on X86 && PCI
1326	select WATCHDOG_CORE
1327	depends on I2C || I2C=n
1328	depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT
1329	depends on HAS_IOPORT # for I2C_I801
1330	select LPC_ICH if !EXPERT
1331	select I2C_I801 if !EXPERT && I2C
1332	help
1333	  Hardware driver for the intel TCO timer based watchdog devices.
1334	  These drivers are included in the Intel 82801 I/O Controller
1335	  Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1336	  controller hub.
1337
1338	  The TCO (Total Cost of Ownership) timer is a watchdog timer
1339	  that will reboot the machine after its second expiration. The
1340	  expiration time can be configured with the "heartbeat" parameter.
1341
1342	  On some motherboards the driver may fail to reset the chipset's
1343	  NO_REBOOT flag which prevents the watchdog from rebooting the
1344	  machine. If this is the case you will get a kernel message like
1345	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1346
1347	  To compile this driver as a module, choose M here: the
1348	  module will be called iTCO_wdt.
1349
1350config ITCO_VENDOR_SUPPORT
1351	bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1352	depends on ITCO_WDT
1353	help
1354	  Add vendor specific support to the intel TCO timer based watchdog
1355	  devices. At this moment we only have additional support for some
1356	  SuperMicro Inc. motherboards.
1357
1358config IT8712F_WDT
1359	tristate "IT8712F (Smart Guardian) Watchdog Timer"
1360	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1361	help
1362	  This is the driver for the built-in watchdog timer on the IT8712F
1363	  Super I/0 chipset used on many motherboards.
1364
1365	  If the driver does not work, then make sure that the game port in
1366	  the BIOS is enabled.
1367
1368	  To compile this driver as a module, choose M here: the
1369	  module will be called it8712f_wdt.
1370
1371config IT87_WDT
1372	tristate "IT87 Watchdog Timer"
1373	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1374	select WATCHDOG_CORE
1375	help
1376	  This is the driver for the hardware watchdog on the ITE IT8607,
1377	  IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1378	  IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1379	  IT8783 Super I/O chips.
1380
1381	  This watchdog simply watches your kernel to make sure it doesn't
1382	  freeze, and if it does, it reboots your computer after a certain
1383	  amount of time.
1384
1385	  To compile this driver as a module, choose M here: the module will
1386	  be called it87_wdt.
1387
1388config HP_WATCHDOG
1389	tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1390	select WATCHDOG_CORE
1391	depends on (ARM64 || X86 || COMPILE_TEST) && PCI
1392	help
1393	  A software monitoring watchdog and NMI handling driver. This driver
1394	  will detect lockups and provide a stack trace. This is a driver that
1395	  will only load on an HP ProLiant system with a minimum of iLO2 support.
1396	  To compile this driver as a module, choose M here: the module will be
1397	  called hpwdt.
1398
1399config HPWDT_NMI_DECODING
1400	bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1401	depends on X86 && HP_WATCHDOG
1402	default y
1403	help
1404	  Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1405	  "Generate NMI to System" virtual button.  When an NMI is claimed
1406	  by the driver, panic is called.
1407
1408config KEMPLD_WDT
1409	tristate "Kontron COM Watchdog Timer"
1410	depends on MFD_KEMPLD
1411	select WATCHDOG_CORE
1412	help
1413	  Support for the PLD watchdog on some Kontron ETX and COMexpress
1414	  (ETXexpress) modules
1415
1416	  This driver can also be built as a module. If so, the module will be
1417	  called kempld_wdt.
1418
1419config SC1200_WDT
1420	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1421	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1422	help
1423	  This is a driver for National Semiconductor PC87307/PC97307 hardware
1424	  watchdog cards as found on the SC1200. This watchdog is mainly used
1425	  for power management purposes and can be used to power down the device
1426	  during inactivity periods (includes interrupt activity monitoring).
1427
1428	  To compile this driver as a module, choose M here: the
1429	  module will be called sc1200wdt.
1430
1431	  Most people will say N.
1432
1433config SCx200_WDT
1434	tristate "National Semiconductor SCx200 Watchdog"
1435	depends on SCx200 && PCI
1436	help
1437	  Enable the built-in watchdog timer support on the National
1438	  Semiconductor SCx200 processors.
1439
1440	  If compiled as a module, it will be called scx200_wdt.
1441
1442config PC87413_WDT
1443	tristate "NS PC87413 watchdog"
1444	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1445	help
1446	  This is the driver for the hardware watchdog on the PC87413 chipset
1447	  This watchdog simply watches your kernel to make sure it doesn't
1448	  freeze, and if it does, it reboots your computer after a certain
1449	  amount of time.
1450
1451	  To compile this driver as a module, choose M here: the
1452	  module will be called pc87413_wdt.
1453
1454	  Most people will say N.
1455
1456config NV_TCO
1457	tristate "nVidia TCO Timer/Watchdog"
1458	depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT
1459	help
1460	  Hardware driver for the TCO timer built into the nVidia Hub family
1461	  (such as the MCP51).  The TCO (Total Cost of Ownership) timer is a
1462	  watchdog timer that will reboot the machine after its second
1463	  expiration. The expiration time can be configured with the
1464	  "heartbeat" parameter.
1465
1466	  On some motherboards the driver may fail to reset the chipset's
1467	  NO_REBOOT flag which prevents the watchdog from rebooting the
1468	  machine. If this is the case you will get a kernel message like
1469	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1470
1471	  To compile this driver as a module, choose M here: the
1472	  module will be called nv_tco.
1473
1474config RDC321X_WDT
1475	tristate "RDC R-321x SoC watchdog"
1476	depends on X86_RDC321X || COMPILE_TEST
1477	depends on PCI
1478	help
1479	  This is the driver for the built in hardware watchdog
1480	  in the RDC R-321x SoC.
1481
1482	  To compile this driver as a module, choose M here: the
1483	  module will be called rdc321x_wdt.
1484
1485config 60XX_WDT
1486	tristate "SBC-60XX Watchdog Timer"
1487	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1488	help
1489	  This driver can be used with the watchdog timer found on some
1490	  single board computers, namely the 6010 PII based computer.
1491	  It may well work with other cards.  It reads port 0x443 to enable
1492	  and re-set the watchdog timer, and reads port 0x45 to disable
1493	  the watchdog.  If you have a card that behave in similar ways,
1494	  you can probably make this driver work with your card as well.
1495
1496	  You can compile this driver directly into the kernel, or use
1497	  it as a module.  The module will be called sbc60xxwdt.
1498
1499config SBC8360_WDT
1500	tristate "SBC8360 Watchdog Timer"
1501	depends on X86_32
1502	help
1503
1504	  This is the driver for the hardware watchdog on the SBC8360 Single
1505	  Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1506
1507	  To compile this driver as a module, choose M here: the
1508	  module will be called sbc8360.
1509
1510	  Most people will say N.
1511
1512config SBC7240_WDT
1513	tristate "SBC Nano 7240 Watchdog Timer"
1514	depends on X86_32 && !UML
1515	help
1516	  This is the driver for the hardware watchdog found on the IEI
1517	  single board computers EPIC Nano 7240 (and likely others). This
1518	  watchdog simply watches your kernel to make sure it doesn't freeze,
1519	  and if it does, it reboots your computer after a certain amount of
1520	  time.
1521
1522	  To compile this driver as a module, choose M here: the
1523	  module will be called sbc7240_wdt.
1524
1525config CPU5_WDT
1526	tristate "SMA CPU5 Watchdog"
1527	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1528	help
1529	  TBD.
1530	  To compile this driver as a module, choose M here: the
1531	  module will be called cpu5wdt.
1532
1533config SMSC_SCH311X_WDT
1534	tristate "SMSC SCH311X Watchdog Timer"
1535	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1536	help
1537	  This is the driver for the hardware watchdog timer on the
1538	  SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1539	  (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1540	  serial ports).
1541
1542	  To compile this driver as a module, choose M here: the
1543	  module will be called sch311x_wdt.
1544
1545config SMSC37B787_WDT
1546	tristate "Winbond SMsC37B787 Watchdog Timer"
1547	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1548	help
1549	  This is the driver for the hardware watchdog component on the
1550	  Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1551	  from Vision Systems and maybe others.
1552
1553	  This watchdog simply watches your kernel to make sure it doesn't
1554	  freeze, and if it does, it reboots your computer after a certain
1555	  amount of time.
1556
1557	  Usually a userspace daemon will notify the kernel WDT driver that
1558	  userspace is still alive, at regular intervals.
1559
1560	  To compile this driver as a module, choose M here: the
1561	  module will be called smsc37b787_wdt.
1562
1563	  Most people will say N.
1564
1565config TQMX86_WDT
1566	tristate "TQ-Systems TQMX86 Watchdog Timer"
1567	depends on X86 || COMPILE_TEST
1568	select WATCHDOG_CORE
1569	help
1570	  This is the driver for the hardware watchdog timer in the TQMX86 IO
1571	  controller found on some of their ComExpress Modules.
1572
1573	  To compile this driver as a module, choose M here; the module
1574	  will be called tqmx86_wdt.
1575
1576	  Most people will say N.
1577
1578config VIA_WDT
1579	tristate "VIA Watchdog Timer"
1580	depends on (X86 || COMPILE_TEST) && PCI
1581	select WATCHDOG_CORE
1582	help
1583	  This is the driver for the hardware watchdog timer on VIA
1584	  southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1585
1586	  To compile this driver as a module, choose M here; the module
1587	  will be called via_wdt.
1588
1589	  Most people will say N.
1590
1591config W83627HF_WDT
1592	tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1593	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1594	select WATCHDOG_CORE
1595	help
1596	  This is the driver for the hardware watchdog on the following
1597	  Super I/O chips.
1598		W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1599		W83637HF
1600		W83667HG/HG-B
1601		W83687THF
1602		W83697HF
1603		W83697UG
1604		NCT6775
1605		NCT6776
1606		NCT6779
1607		NCT6791
1608		NCT6792
1609		NCT6102D/04D/06D
1610		NCT6116D
1611
1612	  This watchdog simply watches your kernel to make sure it doesn't
1613	  freeze, and if it does, it reboots your computer after a certain
1614	  amount of time.
1615
1616	  To compile this driver as a module, choose M here: the
1617	  module will be called w83627hf_wdt.
1618
1619	  Most people will say N.
1620
1621config W83877F_WDT
1622	tristate "W83877F (EMACS) Watchdog Timer"
1623	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1624	help
1625	  This is the driver for the hardware watchdog on the W83877F chipset
1626	  as used in EMACS PC-104 motherboards (and likely others).  This
1627	  watchdog simply watches your kernel to make sure it doesn't freeze,
1628	  and if it does, it reboots your computer after a certain amount of
1629	  time.
1630
1631	  To compile this driver as a module, choose M here: the
1632	  module will be called w83877f_wdt.
1633
1634	  Most people will say N.
1635
1636config W83977F_WDT
1637	tristate "W83977F (PCM-5335) Watchdog Timer"
1638	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1639	help
1640	  This is the driver for the hardware watchdog on the W83977F I/O chip
1641	  as used in AAEON's PCM-5335 SBC (and likely others).  This
1642	  watchdog simply watches your kernel to make sure it doesn't freeze,
1643	  and if it does, it reboots your computer after a certain amount of
1644	  time.
1645
1646	  To compile this driver as a module, choose M here: the
1647	  module will be called w83977f_wdt.
1648
1649config MACHZ_WDT
1650	tristate "ZF MachZ Watchdog"
1651	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1652	help
1653	  If you are using a ZF Micro MachZ processor, say Y here, otherwise
1654	  N.  This is the driver for the watchdog timer built-in on that
1655	  processor using ZF-Logic interface.  This watchdog simply watches
1656	  your kernel to make sure it doesn't freeze, and if it does, it
1657	  reboots your computer after a certain amount of time.
1658
1659	  To compile this driver as a module, choose M here: the
1660	  module will be called machzwd.
1661
1662config SBC_EPX_C3_WATCHDOG
1663	tristate "Winsystems SBC EPX-C3 watchdog"
1664	depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1665	help
1666	  This is the driver for the built-in watchdog timer on the EPX-C3
1667	  Single-board computer made by Winsystems, Inc.
1668
1669	  *Note*: This hardware watchdog is not probeable and thus there
1670	  is no way to know if writing to its IO address will corrupt
1671	  your system or have any real effect.  The only way to be sure
1672	  that this driver does what you want is to make sure you
1673	  are running it on an EPX-C3 from Winsystems with the watchdog
1674	  timer at IO address 0x1ee and 0x1ef.  It will write to both those
1675	  IO ports.  Basically, the assumption is made that if you compile
1676	  this driver into your kernel and/or load it as a module, that you
1677	  know what you are doing and that you are in fact running on an
1678	  EPX-C3 board!
1679
1680	  To compile this driver as a module, choose M here: the
1681	  module will be called sbc_epx_c3.
1682
1683config INTEL_MEI_WDT
1684	tristate "Intel MEI iAMT Watchdog"
1685	depends on INTEL_MEI && X86
1686	select WATCHDOG_CORE
1687	help
1688	  A device driver for the Intel MEI iAMT watchdog.
1689
1690	  The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1691	  Whenever the OS hangs or crashes, iAMT will send an event
1692	  to any subscriber to this event. The watchdog doesn't reset the
1693	  the platform.
1694
1695	  To compile this driver as a module, choose M here:
1696	  the module will be called mei_wdt.
1697
1698config NI903X_WDT
1699	tristate "NI 903x/913x Watchdog"
1700	depends on X86 && ACPI
1701	select WATCHDOG_CORE
1702	help
1703	  This is the driver for the watchdog timer on the National Instruments
1704	  903x/913x real-time controllers.
1705
1706	  To compile this driver as a module, choose M here: the module will be
1707	  called ni903x_wdt.
1708
1709config NIC7018_WDT
1710	tristate "NIC7018 Watchdog"
1711	depends on X86 && ACPI
1712	select WATCHDOG_CORE
1713	help
1714	  Support for National Instruments NIC7018 Watchdog.
1715
1716	  To compile this driver as a module, choose M here: the module will be
1717	  called nic7018_wdt.
1718
1719config SIEMENS_SIMATIC_IPC_WDT
1720	tristate "Siemens Simatic IPC Watchdog"
1721	depends on SIEMENS_SIMATIC_IPC && PCI
1722	default y
1723	select WATCHDOG_CORE
1724	select P2SB if X86
1725	help
1726	  This driver adds support for several watchdogs found in Industrial
1727	  PCs from Siemens.
1728
1729	  To compile this driver as a module, choose M here: the module will be
1730	  called simatic-ipc-wdt.
1731
1732# M68K Architecture
1733
1734config M54xx_WATCHDOG
1735	tristate "MCF54xx watchdog support"
1736	depends on M548x
1737	help
1738	  To compile this driver as a module, choose M here: the
1739	  module will be called m54xx_wdt.
1740
1741# MicroBlaze Architecture
1742
1743# MIPS Architecture
1744
1745config ATH79_WDT
1746	tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1747	depends on ATH79 || (ARM && COMPILE_TEST)
1748	help
1749	  Hardware driver for the built-in watchdog timer on the Atheros
1750	  AR71XX/AR724X/AR913X SoCs.
1751
1752config BCM47XX_WDT
1753	tristate "Broadcom BCM47xx Watchdog Timer"
1754	depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1755	select WATCHDOG_CORE
1756	help
1757	  Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1758
1759config RC32434_WDT
1760	tristate "IDT RC32434 SoC Watchdog Timer"
1761	depends on MIKROTIK_RB532
1762	help
1763	  Hardware driver for the IDT RC32434 SoC built-in
1764	  watchdog timer.
1765
1766	  To compile this driver as a module, choose M here: the
1767	  module will be called rc32434_wdt.
1768
1769config INDYDOG
1770	tristate "Indy/I2 Hardware Watchdog"
1771	depends on SGI_HAS_INDYDOG
1772	help
1773	  Hardware driver for the Indy's/I2's watchdog. This is a
1774	  watchdog timer that will reboot the machine after a 60 second
1775	  timer expired and no process has written to /dev/watchdog during
1776	  that time.
1777
1778config JZ4740_WDT
1779	tristate "Ingenic jz4740 SoC hardware watchdog"
1780	depends on MIPS || COMPILE_TEST
1781	depends on COMMON_CLK
1782	select WATCHDOG_CORE
1783	select MFD_SYSCON
1784	help
1785	  Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1786
1787config WDT_MTX1
1788	tristate "MTX-1 Hardware Watchdog"
1789	depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1790	help
1791	  Hardware driver for the MTX-1 boards. This is a watchdog timer that
1792	  will reboot the machine after a 100 seconds timer expired.
1793
1794config SIBYTE_WDOG
1795	tristate "Sibyte SoC hardware watchdog"
1796	depends on CPU_SB1
1797	help
1798	  Watchdog driver for the built in watchdog hardware in Sibyte
1799	  SoC processors.  There are apparently two watchdog timers
1800	  on such processors; this driver supports only the first one,
1801	  because currently Linux only supports exporting one watchdog
1802	  to userspace.
1803
1804	  To compile this driver as a loadable module, choose M here.
1805	  The module will be called sb_wdog.
1806
1807config TXX9_WDT
1808	tristate "Toshiba TXx9 Watchdog Timer"
1809	depends on CPU_TX49XX || (MIPS && COMPILE_TEST)
1810	select WATCHDOG_CORE
1811	help
1812	  Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1813
1814config OCTEON_WDT
1815	tristate "Cavium OCTEON SOC family Watchdog Timer"
1816	depends on CAVIUM_OCTEON_SOC
1817	default y
1818	select WATCHDOG_CORE
1819	select EXPORT_UASM if OCTEON_WDT = m
1820	help
1821	  Hardware driver for OCTEON's on chip watchdog timer.
1822	  Enables the watchdog for all cores running Linux. It
1823	  installs a NMI handler and pokes the watchdog based on an
1824	  interrupt.  On first expiration of the watchdog, the
1825	  interrupt handler pokes it.  The second expiration causes an
1826	  NMI that prints a message. The third expiration causes a
1827	  global soft reset.
1828
1829	  When userspace has /dev/watchdog open, no poking is done
1830	  from the first interrupt, it is then only poked when the
1831	  device is written.
1832
1833config MARVELL_GTI_WDT
1834	tristate "Marvell GTI Watchdog driver"
1835	depends on ARCH_THUNDER || (COMPILE_TEST && 64BIT)
1836	default y
1837	select WATCHDOG_CORE
1838	help
1839	  Marvell GTI hardware supports watchdog timer. First timeout
1840	  works as watchdog pretimeout and installed interrupt handler
1841	  will be called on first timeout. Hardware can generate interrupt
1842	  to SCP on second timeout but it is not enabled, so second
1843	  timeout is ignored. If device poke does not happen then system
1844	  will reboot on third timeout.
1845
1846config BCM2835_WDT
1847	tristate "Broadcom BCM2835 hardware watchdog"
1848	depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1849	select WATCHDOG_CORE
1850	help
1851	  Watchdog driver for the built in watchdog hardware in Broadcom
1852	  BCM2835 SoC.
1853
1854	  To compile this driver as a loadable module, choose M here.
1855	  The module will be called bcm2835_wdt.
1856
1857config BCM_KONA_WDT
1858	tristate "BCM Kona Watchdog"
1859	depends on ARCH_BCM_MOBILE || COMPILE_TEST
1860	select WATCHDOG_CORE
1861	help
1862	  Support for the watchdog timer on the following Broadcom BCM281xx
1863	  family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1864	  BCM28155 variants.
1865
1866	  Say 'Y' or 'M' here to enable the driver. The module will be called
1867	  bcm_kona_wdt.
1868
1869config BCM_KONA_WDT_DEBUG
1870	bool "DEBUGFS support for BCM Kona Watchdog"
1871	depends on BCM_KONA_WDT || COMPILE_TEST
1872	help
1873	  If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1874	  access to the driver's internal data structures as well as watchdog
1875	  timer hardware registres.
1876
1877	  If in doubt, say 'N'.
1878
1879config BCM7038_WDT
1880	tristate "BCM63xx/BCM7038 Watchdog"
1881	select WATCHDOG_CORE
1882	depends on HAS_IOMEM
1883	depends on ARCH_BCMBCA || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || COMPILE_TEST
1884	help
1885	  Watchdog driver for the built-in hardware in Broadcom 7038 and
1886	  later SoCs used in set-top boxes.  BCM7038 was made public
1887	  during the 2004 CES, and since then, many Broadcom chips use this
1888	  watchdog block, including some cable modem chips and DSL (63xx)
1889	  chips.
1890
1891config IMGPDC_WDT
1892	tristate "Imagination Technologies PDC Watchdog Timer"
1893	depends on HAS_IOMEM
1894	depends on MIPS || COMPILE_TEST
1895	select WATCHDOG_CORE
1896	help
1897	  Driver for Imagination Technologies PowerDown Controller
1898	  Watchdog Timer.
1899
1900	  To compile this driver as a loadable module, choose M here.
1901	  The module will be called imgpdc_wdt.
1902
1903config LANTIQ_WDT
1904	tristate "Lantiq SoC watchdog"
1905	depends on LANTIQ
1906	select WATCHDOG_CORE
1907	help
1908	  Hardware driver for the Lantiq SoC Watchdog Timer.
1909
1910config LOONGSON1_WDT
1911	tristate "Loongson1 SoC hardware watchdog"
1912	depends on MACH_LOONGSON32 || COMPILE_TEST
1913	select WATCHDOG_CORE
1914	help
1915	  Hardware driver for the Loongson1 SoC Watchdog Timer.
1916
1917config RALINK_WDT
1918	tristate "Ralink SoC watchdog"
1919	select WATCHDOG_CORE
1920	depends on RALINK
1921	help
1922	  Hardware driver for the Ralink SoC Watchdog Timer.
1923
1924config GXP_WATCHDOG
1925	tristate "HPE GXP watchdog support"
1926	depends on ARCH_HPE_GXP || COMPILE_TEST
1927	select WATCHDOG_CORE
1928	help
1929	  Say Y here to include support for the watchdog timer
1930	  in HPE GXP SoCs.
1931
1932	  To compile this driver as a module, choose M here.
1933	  The module will be called gxp-wdt.
1934
1935config MT7621_WDT
1936	tristate "Mediatek SoC watchdog"
1937	select WATCHDOG_CORE
1938	select REGMAP_MMIO
1939	select MFD_SYSCON
1940	depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
1941	help
1942	  Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1943
1944config PIC32_WDT
1945	tristate "Microchip PIC32 hardware watchdog"
1946	select WATCHDOG_CORE
1947	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1948	help
1949	  Watchdog driver for the built in watchdog hardware in a PIC32.
1950
1951	  Configuration bits must be set appropriately for the watchdog to be
1952	  controlled by this driver.
1953
1954	  To compile this driver as a loadable module, choose M here.
1955	  The module will be called pic32-wdt.
1956
1957config PIC32_DMT
1958	tristate "Microchip PIC32 Deadman Timer"
1959	select WATCHDOG_CORE
1960	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1961	help
1962	  Watchdog driver for PIC32 instruction fetch counting timer. This
1963	  specific timer is typically be used in mission critical and safety
1964	  critical applications, where any single failure of the software
1965	  functionality and sequencing must be detected.
1966
1967	  To compile this driver as a loadable module, choose M here.
1968	  The module will be called pic32-dmt.
1969
1970# PARISC Architecture
1971
1972# POWERPC Architecture
1973
1974config GEF_WDT
1975	tristate "GE Watchdog Timer"
1976	depends on GE_FPGA
1977	help
1978	  Watchdog timer found in a number of GE single board computers.
1979
1980config MPC5200_WDT
1981	bool "MPC52xx Watchdog Timer"
1982	depends on PPC_MPC52xx || COMPILE_TEST
1983	help
1984	  Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1985
1986config 8xxx_WDT
1987	tristate "MPC8xxx Platform Watchdog Timer"
1988	depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1989	select WATCHDOG_CORE
1990	help
1991	  This driver is for a SoC level watchdog that exists on some
1992	  Freescale PowerPC processors. So far this driver supports:
1993	  - MPC8xx watchdogs
1994	  - MPC83xx watchdogs
1995	  - MPC86xx watchdogs
1996
1997	  For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1998
1999config PIKA_WDT
2000	tristate "PIKA FPGA Watchdog"
2001	depends on WARP || (PPC64 && COMPILE_TEST)
2002	default y
2003	help
2004	  This enables the watchdog in the PIKA FPGA. Currently used on
2005	  the Warp platform.
2006
2007config BOOKE_WDT
2008	tristate "PowerPC Book-E Watchdog Timer"
2009	depends on BOOKE || 4xx
2010	select WATCHDOG_CORE
2011	help
2012	  Watchdog driver for PowerPC Book-E chips, such as the Freescale
2013	  MPC85xx SOCs and the IBM PowerPC 440.
2014
2015	  Please see Documentation/watchdog/watchdog-api.rst for
2016	  more information.
2017
2018config BOOKE_WDT_DEFAULT_TIMEOUT
2019	int "PowerPC Book-E Watchdog Timer Default Timeout"
2020	depends on BOOKE_WDT
2021	default 38 if PPC_E500
2022	range 0 63 if PPC_E500
2023	default 3 if !PPC_E500
2024	range 0 3 if !PPC_E500
2025	help
2026	  Select the default watchdog timer period to be used by the PowerPC
2027	  Book-E watchdog driver.  A watchdog "event" occurs when the bit
2028	  position represented by this number transitions from zero to one.
2029
2030	  For Freescale Book-E processors, this is a number between 0 and 63.
2031	  For other Book-E processors, this is a number between 0 and 3.
2032
2033	  The value can be overridden by the wdt_period command-line parameter.
2034
2035config MEN_A21_WDT
2036	tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
2037	select WATCHDOG_CORE
2038	depends on GPIOLIB || COMPILE_TEST
2039	help
2040	  Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
2041
2042	  The driver can also be built as a module. If so, the module will be
2043	  called mena21_wdt.
2044
2045	  If unsure select N here.
2046
2047# PPC64 Architecture
2048
2049config PSERIES_WDT
2050	tristate "POWER Architecture Platform Watchdog Timer"
2051	depends on PPC_PSERIES
2052	select WATCHDOG_CORE
2053	help
2054	  Driver for virtual watchdog timers provided by PAPR
2055	  hypervisors (e.g. PowerVM, KVM).
2056
2057config WATCHDOG_RTAS
2058	tristate "RTAS watchdog"
2059	depends on PPC_RTAS
2060	help
2061	  This driver adds watchdog support for the RTAS watchdog.
2062
2063	  To compile this driver as a module, choose M here. The module
2064	  will be called wdrtas.
2065
2066# RISC-V Architecture
2067
2068config STARFIVE_WATCHDOG
2069	tristate "StarFive Watchdog support"
2070	depends on ARCH_STARFIVE || COMPILE_TEST
2071	select WATCHDOG_CORE
2072	default ARCH_STARFIVE
2073	help
2074	  Say Y here to support the watchdog of StarFive JH7100 and JH7110
2075	  SoC. This driver can also be built as a module if choose M.
2076
2077# S390 Architecture
2078
2079config DIAG288_WATCHDOG
2080	tristate "System z diag288 Watchdog"
2081	depends on S390
2082	select WATCHDOG_CORE
2083	help
2084	  IBM s/390 and zSeries machines running under z/VM 5.1 or later
2085	  provide a virtual watchdog timer to their guest that cause a
2086	  user define Control Program command to be executed after a
2087	  timeout.
2088	  LPAR provides a very similar interface. This driver handles
2089	  both.
2090
2091	  To compile this driver as a module, choose M here. The module
2092	  will be called diag288_wdt.
2093
2094# SUPERH (sh + sh64) Architecture
2095
2096config SH_WDT
2097	tristate "SuperH Watchdog"
2098	depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
2099	select WATCHDOG_CORE
2100	help
2101	  This driver adds watchdog support for the integrated watchdog in the
2102	  SuperH processors. If you have one of these processors and wish
2103	  to have watchdog support enabled, say Y, otherwise say N.
2104
2105	  As a side note, saying Y here will automatically boost HZ to 1000
2106	  so that the timer has a chance to clear the overflow counter. On
2107	  slower systems (such as the SH-2 and SH-3) this will likely yield
2108	  some performance issues. As such, the WDT should be avoided here
2109	  unless it is absolutely necessary.
2110
2111	  To compile this driver as a module, choose M here: the
2112	  module will be called shwdt.
2113
2114# SPARC Architecture
2115
2116# SPARC64 Architecture
2117
2118config WATCHDOG_CP1XXX
2119	tristate "CP1XXX Hardware Watchdog support"
2120	depends on SPARC64 && PCI
2121	help
2122	  This is the driver for the hardware watchdog timers present on
2123	  Sun Microsystems CompactPCI models CP1400 and CP1500.
2124
2125	  To compile this driver as a module, choose M here: the
2126	  module will be called cpwatchdog.
2127
2128	  If you do not have a CompactPCI model CP1400 or CP1500, or
2129	  another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
2130	  you should say N to this option.
2131
2132config WATCHDOG_RIO
2133	tristate "RIO Hardware Watchdog support"
2134	depends on SPARC64 && PCI
2135	help
2136	  Say Y here to support the hardware watchdog capability on Sun RIO
2137	  machines.  The watchdog timeout period is normally one minute but
2138	  can be changed with a boot-time parameter.
2139
2140config WATCHDOG_SUN4V
2141	tristate "Sun4v Watchdog support"
2142	select WATCHDOG_CORE
2143	depends on SPARC64
2144	help
2145	  Say Y here to support the hypervisor watchdog capability embedded
2146	  in the SPARC sun4v architecture.
2147
2148	  To compile this driver as a module, choose M here. The module will
2149	  be called sun4v_wdt.
2150
2151# XTENSA Architecture
2152
2153# Xen Architecture
2154
2155config XEN_WDT
2156	tristate "Xen Watchdog support"
2157	depends on XEN
2158	select WATCHDOG_CORE
2159	help
2160	  Say Y here to support the hypervisor watchdog capability provided
2161	  by Xen 4.0 and newer.  The watchdog timeout period is normally one
2162	  minute but can be changed with a boot-time parameter.
2163
2164config UML_WATCHDOG
2165	tristate "UML watchdog"
2166	depends on UML || COMPILE_TEST
2167
2168#
2169# ISA-based Watchdog Cards
2170#
2171
2172comment "ISA-based Watchdog Cards"
2173	depends on ISA
2174
2175config PCWATCHDOG
2176	tristate "Berkshire Products ISA-PC Watchdog"
2177	depends on ISA
2178	help
2179	  This is the driver for the Berkshire Products ISA-PC Watchdog card.
2180	  This card simply watches your kernel to make sure it doesn't freeze,
2181	  and if it does, it reboots your computer after a certain amount of
2182	  time. This driver is like the WDT501 driver but for different
2183	  hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>.
2184	  The PC watchdog cards can be ordered from <http://www.berkprod.com/>.
2185
2186	  To compile this driver as a module, choose M here: the
2187	  module will be called pcwd.
2188
2189	  Most people will say N.
2190
2191config MIXCOMWD
2192	tristate "Mixcom Watchdog"
2193	depends on ISA
2194	help
2195	  This is a driver for the Mixcom hardware watchdog cards.  This
2196	  watchdog simply watches your kernel to make sure it doesn't freeze,
2197	  and if it does, it reboots your computer after a certain amount of
2198	  time.
2199
2200	  To compile this driver as a module, choose M here: the
2201	  module will be called mixcomwd.
2202
2203	  Most people will say N.
2204
2205config WDT
2206	tristate "WDT Watchdog timer"
2207	depends on ISA
2208	help
2209	  If you have a WDT500P or WDT501P watchdog board, say Y here,
2210	  otherwise N. It is not possible to probe for this board, which means
2211	  that you have to inform the kernel about the IO port and IRQ that
2212	  is needed (you can do this via the io and irq parameters)
2213
2214	  To compile this driver as a module, choose M here: the
2215	  module will be called wdt.
2216
2217#
2218# PCI-based Watchdog Cards
2219#
2220
2221comment "PCI-based Watchdog Cards"
2222	depends on PCI
2223
2224config PCIPCWATCHDOG
2225	tristate "Berkshire Products PCI-PC Watchdog"
2226	depends on PCI && HAS_IOPORT
2227	help
2228	  This is the driver for the Berkshire Products PCI-PC Watchdog card.
2229	  This card simply watches your kernel to make sure it doesn't freeze,
2230	  and if it does, it reboots your computer after a certain amount of
2231	  time. The card can also monitor the internal temperature of the PC.
2232	  More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2233
2234	  To compile this driver as a module, choose M here: the
2235	  module will be called pcwd_pci.
2236
2237	  Most people will say N.
2238
2239config WDTPCI
2240	tristate "PCI-WDT500/501 Watchdog timer"
2241	depends on PCI && HAS_IOPORT
2242	help
2243	  If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2244
2245	  If you have a PCI-WDT501 watchdog board then you can enable the
2246	  temperature sensor by setting the type parameter to 501.
2247
2248	  If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2249	  can do this via the tachometer parameter. Only do this if you have a
2250	  fan tachometer actually set up.
2251
2252	  To compile this driver as a module, choose M here: the
2253	  module will be called wdt_pci.
2254
2255#
2256# USB-based Watchdog Cards
2257#
2258
2259comment "USB-based Watchdog Cards"
2260	depends on USB
2261
2262config USBPCWATCHDOG
2263	tristate "Berkshire Products USB-PC Watchdog"
2264	depends on USB
2265	help
2266	  This is the driver for the Berkshire Products USB-PC Watchdog card.
2267	  This card simply watches your kernel to make sure it doesn't freeze,
2268	  and if it does, it reboots your computer after a certain amount of
2269	  time. The card can also monitor the internal temperature of the PC.
2270	  More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2271
2272	  To compile this driver as a module, choose M here: the
2273	  module will be called pcwd_usb.
2274
2275	  Most people will say N.
2276
2277config KEEMBAY_WATCHDOG
2278	tristate "Intel Keem Bay SoC non-secure watchdog"
2279	depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST)
2280	select WATCHDOG_CORE
2281	help
2282	  This option enable support for an In-secure watchdog timer driver for
2283	  Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every
2284	  count unit. An interrupt will be triggered, when the count crosses
2285	  the threshold configured in the register.
2286
2287	  To compile this driver as a module, choose M here: the
2288	  module will be called keembay_wdt.
2289
2290endif # WATCHDOG
2291