xref: /linux/drivers/watchdog/Kconfig (revision 1f6602c8ed1eccac4fa83e338d02aafe3a0e2c0a)
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 CROS_EC_WATCHDOG
185	tristate "ChromeOS EC-based watchdog"
186	select WATCHDOG_CORE
187	depends on CROS_EC
188	help
189	  Watchdog driver for Chromebook devices equipped with embedded controller.
190	  Trigger event is recorded in EC and checked on the subsequent boot.
191
192	  To compile this driver as a module, choose M here: the
193	  module will be called cros_ec_wdt.
194
195config DA9052_WATCHDOG
196	tristate "Dialog DA9052 Watchdog"
197	depends on PMIC_DA9052 || COMPILE_TEST
198	select WATCHDOG_CORE
199	help
200	  Support for the watchdog in the DA9052 PMIC. Watchdog trigger
201	  cause system reset.
202
203	  Say Y here to include support for the DA9052 watchdog.
204	  Alternatively say M to compile the driver as a module,
205	  which will be called da9052_wdt.
206
207config DA9055_WATCHDOG
208	tristate "Dialog Semiconductor DA9055 Watchdog"
209	depends on MFD_DA9055 || COMPILE_TEST
210	select WATCHDOG_CORE
211	help
212	  If you say yes here you get support for watchdog on the Dialog
213	  Semiconductor DA9055 PMIC.
214
215	  This driver can also be built as a module.  If so, the module
216	  will be called da9055_wdt.
217
218config DA9063_WATCHDOG
219	tristate "Dialog DA9063 Watchdog"
220	depends on MFD_DA9063 || COMPILE_TEST
221	depends on I2C
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 LENOVO_SE10_WDT
258        tristate "Lenovo SE10 Watchdog"
259        select WATCHDOG_CORE
260        help
261          If you say yes here you get support for the watchdog
262          functionality for the Lenovo SE10 platform.
263
264          This driver can also be built as a module. If so, the module
265          will be called lenovo-se10-wdt.
266
267config MENF21BMC_WATCHDOG
268	tristate "MEN 14F021P00 BMC Watchdog"
269	depends on MFD_MENF21BMC || COMPILE_TEST
270	depends on I2C
271	select WATCHDOG_CORE
272	help
273	  Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
274
275	  This driver can also be built as a module. If so the module
276	  will be called menf21bmc_wdt.
277
278config MENZ069_WATCHDOG
279	tristate "MEN 16Z069 Watchdog"
280	depends on MCB
281	select WATCHDOG_CORE
282	help
283	  Say Y here to include support for the MEN 16Z069 Watchdog.
284
285	  This driver can also be built as a module. If so the module
286	  will be called menz069_wdt.
287
288config WDAT_WDT
289	tristate "ACPI Watchdog Action Table (WDAT)"
290	depends on ACPI
291	select WATCHDOG_CORE
292	select ACPI_WATCHDOG
293	help
294	  This driver adds support for systems with ACPI Watchdog Action
295	  Table (WDAT) table. Servers typically have this but it can be
296	  found on some desktop machines as well. This driver will take
297	  over the native iTCO watchdog driver found on many Intel CPUs.
298
299	  To compile this driver as module, choose M here: the module will
300	  be called wdat_wdt.
301
302config WM831X_WATCHDOG
303	tristate "WM831x watchdog"
304	depends on MFD_WM831X
305	select WATCHDOG_CORE
306	help
307	  Support for the watchdog in the WM831x AudioPlus PMICs.  When
308	  the watchdog triggers the system will be reset.
309
310config WM8350_WATCHDOG
311	tristate "WM8350 watchdog"
312	depends on MFD_WM8350
313	select WATCHDOG_CORE
314	help
315	  Support for the watchdog in the WM8350 AudioPlus PMIC.  When
316	  the watchdog triggers the system will be reset.
317
318config XILINX_WATCHDOG
319	tristate "Xilinx Watchdog timer"
320	depends on HAS_IOMEM
321	select WATCHDOG_CORE
322	help
323	  Watchdog driver for the xps_timebase_wdt IP core.
324
325	  To compile this driver as a module, choose M here: the
326	  module will be called of_xilinx_wdt.
327
328config XILINX_WINDOW_WATCHDOG
329	tristate "Xilinx window watchdog timer"
330	depends on HAS_IOMEM
331	depends on ARM64 || COMPILE_TEST
332	select WATCHDOG_CORE
333	help
334	  Window watchdog driver for the versal_wwdt IP core.
335	  Window watchdog timer(WWDT) contains closed(first) and
336	  open(second) window with 32 bit width. Write to the watchdog
337	  timer within predefined window periods of time. This means
338	  a period that is not too soon and a period that is not too
339	  late. The WWDT has to be restarted within the open window time.
340	  If software tries to restart WWDT outside of the open window
341	  time period, it generates a reset.
342
343	  To compile this driver as a module, choose M here: the
344	  module will be called xilinx_wwdt.
345
346config ZIIRAVE_WATCHDOG
347	tristate "Zodiac RAVE Watchdog Timer"
348	depends on I2C
349	select WATCHDOG_CORE
350	help
351	  Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
352	  Processor.
353
354	  To compile this driver as a module, choose M here: the
355	  module will be called ziirave_wdt.
356
357config RAVE_SP_WATCHDOG
358	tristate "RAVE SP Watchdog timer"
359	depends on RAVE_SP_CORE
360	depends on NVMEM || !NVMEM
361	select WATCHDOG_CORE
362	help
363	  Support for the watchdog on RAVE SP device.
364
365config MLX_WDT
366	tristate "Mellanox Watchdog"
367	depends on MELLANOX_PLATFORM || COMPILE_TEST
368	select WATCHDOG_CORE
369	select REGMAP
370	help
371	  This is the driver for the hardware watchdog on Mellanox systems.
372	  If you are going to use it, say Y here, otherwise N.
373	  This driver can be used together with the watchdog daemon.
374	  It can also watch your kernel to make sure it doesn't freeze,
375	  and if it does, it reboots your system after a certain amount of
376	  time.
377
378	  To compile this driver as a module, choose M here: the
379	  module will be called mlx-wdt.
380
381config SL28CPLD_WATCHDOG
382	tristate "Kontron sl28cpld Watchdog"
383	depends on MFD_SL28CPLD || COMPILE_TEST
384	select WATCHDOG_CORE
385	help
386	  Say Y here to include support for the watchdog timer
387	  on the Kontron sl28 CPLD.
388
389	  To compile this driver as a module, choose M here: the
390	  module will be called sl28cpld_wdt.
391
392# ALPHA Architecture
393
394# ARM Architecture
395
396config ARM_SP805_WATCHDOG
397	tristate "ARM SP805 Watchdog"
398	depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
399	select WATCHDOG_CORE
400	help
401	  ARM Primecell SP805 Watchdog timer. This will reboot your system when
402	  the timeout is reached.
403
404config ARM_SBSA_WATCHDOG
405	tristate "ARM SBSA Generic Watchdog"
406	depends on ARM64
407	depends on ARM_ARCH_TIMER
408	select WATCHDOG_CORE
409	help
410	  ARM SBSA Generic Watchdog has two stage timeouts:
411	  the first signal (WS0) is for alerting the system by interrupt,
412	  the second one (WS1) is a real hardware reset.
413	  More details: ARM DEN0029B - Server Base System Architecture (SBSA)
414
415	  This driver can operate ARM SBSA Generic Watchdog as a single stage
416	  or a two stages watchdog, it depends on the module parameter "action".
417
418	  Note: the maximum timeout in the two stages mode is half of that in
419	  the single stage mode.
420
421	  To compile this driver as module, choose M here: The module
422	  will be called sbsa_gwdt.
423
424config ARMADA_37XX_WATCHDOG
425	tristate "Armada 37xx watchdog"
426	depends on ARCH_MVEBU || COMPILE_TEST
427	depends on HAS_IOMEM
428	select MFD_SYSCON
429	select WATCHDOG_CORE
430	help
431	   Say Y here to include support for the watchdog timer found on
432	   Marvell Armada 37xx SoCs.
433	   To compile this driver as a module, choose M here: the
434	   module will be called armada_37xx_wdt.
435
436config ASM9260_WATCHDOG
437	tristate "Alphascale ASM9260 watchdog"
438	depends on MACH_ASM9260 || COMPILE_TEST
439	depends on OF
440	select WATCHDOG_CORE
441	select RESET_CONTROLLER
442	help
443	  Watchdog timer embedded into Alphascale asm9260 chips. This will
444	  reboot your system when the timeout is reached.
445
446config AT91RM9200_WATCHDOG
447	tristate "AT91RM9200 watchdog"
448	depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
449	help
450	  Watchdog timer embedded into AT91RM9200 chips. This will reboot your
451	  system when the timeout is reached.
452
453config AT91SAM9X_WATCHDOG
454	tristate "AT91SAM9X / AT91CAP9 watchdog"
455	depends on ARCH_AT91 || COMPILE_TEST
456	select WATCHDOG_CORE
457	help
458	  Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
459	  reboot your system when the timeout is reached.
460
461config SAMA5D4_WATCHDOG
462	tristate "Atmel SAMA5D4 Watchdog Timer"
463	depends on ARCH_AT91 || COMPILE_TEST
464	select WATCHDOG_CORE
465	help
466	  Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
467	  Its Watchdog Timer Mode Register can be written more than once.
468	  This will reboot your system when the timeout is reached.
469
470config CADENCE_WATCHDOG
471	tristate "Cadence Watchdog Timer"
472	depends on HAS_IOMEM
473	select WATCHDOG_CORE
474	help
475	  Say Y here if you want to include support for the watchdog
476	  timer in the Xilinx Zynq.
477
478config 21285_WATCHDOG
479	tristate "DC21285 watchdog"
480	depends on FOOTBRIDGE
481	help
482	  The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
483	  here if you wish to use this. Alternatively say M to compile the
484	  driver as a module, which will be called wdt285.
485
486	  This driver does not work on all machines. In particular, early CATS
487	  boards have hardware problems that will cause the machine to simply
488	  lock up if the watchdog fires.
489
490	  "If in doubt, leave it out" - say N.
491
492config 977_WATCHDOG
493	tristate "NetWinder WB83C977 watchdog"
494	depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
495	help
496	  Say Y here to include support for the WB977 watchdog included in
497	  NetWinder machines. Alternatively say M to compile the driver as
498	  a module, which will be called wdt977.
499
500	  Not sure? It's safe to say N.
501
502config FTWDT010_WATCHDOG
503	tristate "Faraday Technology FTWDT010 watchdog"
504	depends on ARM || COMPILE_TEST
505	select WATCHDOG_CORE
506	default ARCH_GEMINI
507	help
508	  Say Y here if to include support for the Faraday Technology
509	  FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
510	  family of devices.
511
512	  To compile this driver as a module, choose M here: the
513	  module will be called ftwdt010_wdt.
514
515config IXP4XX_WATCHDOG
516	tristate "IXP4xx Watchdog"
517	depends on ARCH_IXP4XX || (ARM && COMPILE_TEST)
518	select WATCHDOG_CORE
519	help
520	  Say Y here if to include support for the watchdog timer
521	  in the Intel IXP4xx network processors. This driver can
522	  be built as a module by choosing M. The module will
523	  be called ixp4xx_wdt.
524
525	  Note: The internal IXP4xx watchdog does a soft CPU reset
526	  which doesn't reset any peripherals. There are circumstances
527	  where the watchdog will fail to reset the board correctly
528	  (e.g., if the boot ROM is in an unreadable state).
529
530	  Say N if you are unsure.
531
532config S3C2410_WATCHDOG
533	tristate "S3C6410/S5Pv210/Exynos Watchdog"
534	depends on ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
535	select WATCHDOG_CORE
536	help
537	  Watchdog timer block in the Samsung S3C64xx, S5Pv210 and Exynos
538	  SoCs. This will reboot the system when the timer expires with
539	  the watchdog enabled.
540
541	  The driver is limited by the speed of the system's PCLK
542	  signal, so with reasonably fast systems (PCLK around 50-66MHz)
543	  then watchdog intervals of over approximately 20seconds are
544	  unavailable.
545
546	  Choose Y/M here only if you build for such Samsung SoC.
547	  The driver can be built as a module by choosing M, and will
548	  be called s3c2410_wdt.
549
550config SA1100_WATCHDOG
551	tristate "SA1100/PXA2xx watchdog"
552	depends on ARCH_SA1100 || ARCH_PXA || COMPILE_TEST
553	help
554	  Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
555	  reboot your system when timeout is reached.
556
557	  NOTE: once enabled, this timer cannot be disabled.
558
559	  To compile this driver as a module, choose M here: the
560	  module will be called sa1100_wdt.
561
562config DW_WATCHDOG
563	tristate "Synopsys DesignWare watchdog"
564	depends on HAS_IOMEM
565	select WATCHDOG_CORE
566	help
567	  Say Y here if to include support for the Synopsys DesignWare
568	  watchdog timer found in many chips.
569	  To compile this driver as a module, choose M here: the
570	  module will be called dw_wdt.
571
572config EP93XX_WATCHDOG
573	tristate "EP93xx Watchdog"
574	depends on ARCH_EP93XX || COMPILE_TEST
575	select WATCHDOG_CORE
576	help
577	  Say Y here if to include support for the watchdog timer
578	  embedded in the Cirrus Logic EP93xx family of devices.
579
580	  To compile this driver as a module, choose M here: the
581	  module will be called ep93xx_wdt.
582
583config OMAP_WATCHDOG
584	tristate "OMAP Watchdog"
585	depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
586	select WATCHDOG_CORE
587	help
588	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.
589	  Say 'Y' here to enable the
590	  OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
591
592config PNX4008_WATCHDOG
593	tristate "LPC32XX Watchdog"
594	depends on ARCH_LPC32XX || COMPILE_TEST
595	select WATCHDOG_CORE
596	help
597	  Say Y here if to include support for the watchdog timer
598	  in the LPC32XX processor.
599	  This driver can be built as a module by choosing M. The module
600	  will be called pnx4008_wdt.
601
602	  Say N if you are unsure.
603
604config DAVINCI_WATCHDOG
605	tristate "DaVinci watchdog"
606	depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
607	select WATCHDOG_CORE
608	help
609	  Say Y here if to include support for the watchdog timer
610	  in the DaVinci DM644x/DM646x or Keystone processors.
611	  To compile this driver as a module, choose M here: the
612	  module will be called davinci_wdt.
613
614	  NOTE: once enabled, this timer cannot be disabled.
615	  Say N if you are unsure.
616
617config K3_RTI_WATCHDOG
618	tristate "Texas Instruments K3 RTI watchdog"
619	depends on ARCH_K3 || COMPILE_TEST
620	select WATCHDOG_CORE
621	help
622	  Say Y here if you want to include support for the K3 watchdog
623	  timer (RTI module) available in the K3 generation of processors.
624
625config ORION_WATCHDOG
626	tristate "Orion watchdog"
627	depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST
628	depends on ARM
629	select WATCHDOG_CORE
630	help
631	  Say Y here if to include support for the watchdog timer
632	  in the Marvell Orion5x and Kirkwood ARM SoCs.
633	  To compile this driver as a module, choose M here: the
634	  module will be called orion_wdt.
635
636config RN5T618_WATCHDOG
637	tristate "Ricoh RN5T618 watchdog"
638	depends on MFD_RN5T618 || COMPILE_TEST
639	select WATCHDOG_CORE
640	help
641	  If you say yes here you get support for watchdog on the Ricoh
642	  RN5T618 PMIC.
643
644	  This driver can also be built as a module.  If so, the module
645	  will be called rn5t618_wdt.
646
647config SUNXI_WATCHDOG
648	tristate "Allwinner SoCs watchdog support"
649	depends on ARCH_SUNXI || COMPILE_TEST
650	select WATCHDOG_CORE
651	help
652	  Say Y here to include support for the watchdog timer
653	  in Allwinner SoCs.
654	  To compile this driver as a module, choose M here: the
655	  module will be called sunxi_wdt.
656
657config NPCM7XX_WATCHDOG
658	tristate "Nuvoton NPCM750 watchdog"
659	depends on ARCH_NPCM || COMPILE_TEST
660	default y if ARCH_NPCM7XX
661	select WATCHDOG_CORE
662	help
663	  Say Y here to include Watchdog timer support for the
664	  watchdog embedded into the NPCM7xx.
665	  This watchdog is used to reset the system and thus cannot be
666	  compiled as a module.
667
668config TWL4030_WATCHDOG
669	tristate "TWL4030 Watchdog"
670	depends on TWL4030_CORE
671	select WATCHDOG_CORE
672	help
673	  Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
674	  watchdog timer support for TWL4030 chips.
675
676config STMP3XXX_RTC_WATCHDOG
677	tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
678	depends on RTC_DRV_STMP || COMPILE_TEST
679	select WATCHDOG_CORE
680	help
681	  Say Y here to include support for the watchdog timer inside
682	  the RTC for the STMP37XX/378X or i.MX23/28 SoC.
683	  To compile this driver as a module, choose M here: the
684	  module will be called stmp3xxx_rtc_wdt.
685
686config TS4800_WATCHDOG
687	tristate "TS-4800 Watchdog"
688	depends on HAS_IOMEM && OF
689	depends on SOC_IMX51 || COMPILE_TEST
690	select WATCHDOG_CORE
691	select MFD_SYSCON
692	help
693	  Technologic Systems TS-4800 has watchdog timer implemented in
694	  an external FPGA. Say Y here if you want to support for the
695	  watchdog timer on TS-4800 board.
696
697config TS72XX_WATCHDOG
698	tristate "TS-72XX SBC Watchdog"
699	depends on MACH_TS72XX || COMPILE_TEST
700	select WATCHDOG_CORE
701	help
702	  Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
703	  watchdog timer implemented in a external CPLD chip. Say Y here
704	  if you want to support for the watchdog timer on TS-72XX boards.
705
706	  To compile this driver as a module, choose M here: the
707	  module will be called ts72xx_wdt.
708
709config MAX63XX_WATCHDOG
710	tristate "Max63xx watchdog"
711	depends on HAS_IOMEM
712	select WATCHDOG_CORE
713	help
714	  Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
715
716config MAX77620_WATCHDOG
717	tristate "Maxim Max77620 Watchdog Timer"
718	depends on MFD_MAX77620 || MFD_MAX77714 || COMPILE_TEST
719	select WATCHDOG_CORE
720	help
721	  This is the driver for the Max77620 watchdog timer.
722	  Say 'Y' here to enable the watchdog timer support for
723	  MAX77620 chips. To compile this driver as a module,
724	  choose M here: the module will be called max77620_wdt.
725
726config IMX2_WDT
727	tristate "IMX2+ Watchdog"
728	depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
729	select REGMAP_MMIO
730	select WATCHDOG_CORE
731	help
732	  This is the driver for the hardware watchdog
733	  on the Freescale IMX2 and later processors.
734	  If you have one of these processors and wish to have
735	  watchdog support enabled, say Y, otherwise say N.
736
737	  To compile this driver as a module, choose M here: the
738	  module will be called imx2_wdt.
739
740config IMX_SC_WDT
741	tristate "IMX SC Watchdog"
742	depends on HAVE_ARM_SMCCC
743	depends on IMX_SCU || COMPILE_TEST
744	select WATCHDOG_CORE
745	help
746	  This is the driver for the system controller watchdog
747	  on the NXP i.MX SoCs with system controller inside, the
748	  watchdog driver will call ARM SMC API and trap into
749	  ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
750	  will request system controller to execute the operations.
751	  If you have one of these processors and wish to have
752	  watchdog support enabled, say Y, otherwise say N.
753
754	  To compile this driver as a module, choose M here: the
755	  module will be called imx_sc_wdt.
756
757config IMX7ULP_WDT
758	tristate "IMX7ULP Watchdog"
759	depends on ARCH_MXC || COMPILE_TEST
760	select WATCHDOG_CORE
761	help
762	  This is the driver for the hardware watchdog on the Freescale
763	  IMX7ULP and later processors. If you have one of these
764	  processors and wish to have watchdog support enabled,
765	  say Y, otherwise say N.
766
767	  To compile this driver as a module, choose M here: the
768	  module will be called imx7ulp_wdt.
769
770config DB500_WATCHDOG
771	tristate "ST-Ericsson DB800 watchdog"
772	depends on MFD_DB8500_PRCMU
773	select WATCHDOG_CORE
774	default y
775	help
776	  Say Y here to include Watchdog timer support for the watchdog
777	  existing in the prcmu of ST-Ericsson DB8500 platform.
778
779	  To compile this driver as a module, choose M here: the
780	  module will be called db500_wdt.
781
782config RETU_WATCHDOG
783	tristate "Retu watchdog"
784	depends on MFD_RETU
785	select WATCHDOG_CORE
786	help
787	  Retu watchdog driver for Nokia Internet Tablets (770, N800,
788	  N810). At least on N800 the watchdog cannot be disabled, so
789	  this driver is essential and you should enable it.
790
791	  To compile this driver as a module, choose M here: the
792	  module will be called retu_wdt.
793
794config MOXART_WDT
795	tristate "MOXART watchdog"
796	depends on ARCH_MOXART || COMPILE_TEST
797	help
798	  Say Y here to include Watchdog timer support for the watchdog
799	  existing on the MOXA ART SoC series platforms.
800
801	  To compile this driver as a module, choose M here: the
802	  module will be called moxart_wdt.
803
804config ST_LPC_WATCHDOG
805	tristate "STMicroelectronics LPC Watchdog"
806	depends on ARCH_STI || COMPILE_TEST
807	depends on OF
808	select WATCHDOG_CORE
809	help
810	  Say Y here to include STMicroelectronics Low Power Controller
811	  (LPC) based Watchdog timer support.
812
813	  To compile this driver as a module, choose M here: the
814	  module will be called st_lpc_wdt.
815
816config TEGRA_WATCHDOG
817	tristate "Tegra watchdog"
818	depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
819	select WATCHDOG_CORE
820	help
821	  Say Y here to include support for the watchdog timer
822	  embedded in NVIDIA Tegra SoCs.
823
824	  To compile this driver as a module, choose M here: the
825	  module will be called tegra_wdt.
826
827config QCOM_WDT
828	tristate "QCOM watchdog"
829	depends on HAS_IOMEM
830	depends on ARCH_QCOM || COMPILE_TEST
831	select WATCHDOG_CORE
832	help
833	  Say Y here to include Watchdog timer support for the watchdog found
834	  on QCOM chipsets.  Currently supported targets are the MSM8960,
835	  APQ8064, and IPQ8064.
836
837	  To compile this driver as a module, choose M here: the
838	  module will be called qcom_wdt.
839
840config MESON_GXBB_WATCHDOG
841	tristate "Amlogic Meson GXBB SoCs watchdog support"
842	depends on ARCH_MESON || COMPILE_TEST
843	select WATCHDOG_CORE
844	help
845	  Say Y here to include support for the watchdog timer
846	  in Amlogic Meson GXBB SoCs.
847	  To compile this driver as a module, choose M here: the
848	  module will be called meson_gxbb_wdt.
849
850config MESON_WATCHDOG
851	tristate "Amlogic Meson SoCs watchdog support"
852	depends on ARCH_MESON || COMPILE_TEST
853	select WATCHDOG_CORE
854	help
855	  Say Y here to include support for the watchdog timer
856	  in Amlogic Meson SoCs.
857	  To compile this driver as a module, choose M here: the
858	  module will be called meson_wdt.
859
860config MEDIATEK_WATCHDOG
861	tristate "Mediatek SoCs watchdog support"
862	depends on ARCH_MEDIATEK || COMPILE_TEST
863	default ARCH_MEDIATEK
864	select WATCHDOG_CORE
865	select RESET_CONTROLLER
866	help
867	  Say Y here to include support for the watchdog timer
868	  in Mediatek SoCs.
869	  To compile this driver as a module, choose M here: the
870	  module will be called mtk_wdt.
871
872config DIGICOLOR_WATCHDOG
873	tristate "Conexant Digicolor SoCs watchdog support"
874	depends on ARCH_DIGICOLOR || COMPILE_TEST
875	select WATCHDOG_CORE
876	help
877	  Say Y here to include support for the watchdog timer
878	  in Conexant Digicolor SoCs.
879	  To compile this driver as a module, choose M here: the
880	  module will be called digicolor_wdt.
881
882config ARM_SMC_WATCHDOG
883	tristate "ARM Secure Monitor Call based watchdog support"
884	depends on ARM || ARM64
885	depends on OF
886	depends on HAVE_ARM_SMCCC
887	select WATCHDOG_CORE
888	help
889	  Say Y here to include support for a watchdog timer
890	  implemented by the EL3 Secure Monitor on ARM platforms.
891	  Requires firmware support.
892	  To compile this driver as a module, choose M here: the
893	  module will be called arm_smc_wdt.
894
895config LPC18XX_WATCHDOG
896	tristate "LPC18xx/43xx Watchdog"
897	depends on ARCH_LPC18XX || COMPILE_TEST
898	depends on HAS_IOMEM
899	select WATCHDOG_CORE
900	help
901	  Say Y here if to include support for the watchdog timer
902	  in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
903	  processors.
904	  To compile this driver as a module, choose M here: the
905	  module will be called lpc18xx_wdt.
906
907config RENESAS_WDT
908	tristate "Renesas WDT Watchdog"
909	depends on ARCH_RENESAS || COMPILE_TEST
910	select WATCHDOG_CORE
911	help
912	  This driver adds watchdog support for the integrated watchdogs in the
913	  Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
914
915config RENESAS_RZAWDT
916	tristate "Renesas RZ/A WDT Watchdog"
917	depends on ARCH_RENESAS || COMPILE_TEST
918	select WATCHDOG_CORE
919	help
920	  This driver adds watchdog support for the integrated watchdogs in the
921	  Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
922
923config RENESAS_RZN1WDT
924	tristate "Renesas RZ/N1 watchdog"
925	depends on ARCH_RENESAS || COMPILE_TEST
926	select WATCHDOG_CORE
927	help
928	  This driver adds watchdog support for the integrated watchdogs in the
929	  Renesas RZ/N1 SoCs. These watchdogs can be used to reset a system.
930
931config RENESAS_RZG2LWDT
932	tristate "Renesas RZ/G2L WDT Watchdog"
933	depends on ARCH_RENESAS || COMPILE_TEST
934	select WATCHDOG_CORE
935	help
936	  This driver adds watchdog support for the integrated watchdogs in the
937	  Renesas RZ/G2L SoCs. These watchdogs can be used to reset a system.
938
939config ASPEED_WATCHDOG
940	tristate "Aspeed BMC watchdog support"
941	depends on ARCH_ASPEED || COMPILE_TEST
942	select WATCHDOG_CORE
943	help
944	  Say Y here to include support for the watchdog timer
945	  in Aspeed BMC SoCs.
946
947	  This driver is required to reboot the SoC.
948
949	  To compile this driver as a module, choose M here: the
950	  module will be called aspeed_wdt.
951
952config STM32_WATCHDOG
953	tristate "STM32 Independent WatchDoG (IWDG) support"
954	depends on ARCH_STM32 || COMPILE_TEST
955	select WATCHDOG_CORE
956	default y
957	help
958	  Say Y here to include support for the watchdog timer
959	  in stm32 SoCs.
960
961	  To compile this driver as a module, choose M here: the
962	  module will be called stm32_iwdg.
963
964config STPMIC1_WATCHDOG
965	tristate "STPMIC1 PMIC watchdog support"
966	depends on MFD_STPMIC1
967	select WATCHDOG_CORE
968	help
969	  Say Y here to include watchdog support embedded into STPMIC1 PMIC.
970	  If the watchdog timer expires, stpmic1 will shut down all its power
971	  supplies.
972
973	  To compile this driver as a module, choose M here: the
974	  module will be called spmic1_wdt.
975
976config UNIPHIER_WATCHDOG
977	tristate "UniPhier watchdog support"
978	depends on ARCH_UNIPHIER || COMPILE_TEST
979	depends on OF && MFD_SYSCON
980	select WATCHDOG_CORE
981	help
982	  Say Y here to include support watchdog timer embedded
983	  into the UniPhier system.
984
985	  To compile this driver as a module, choose M here: the
986	  module will be called uniphier_wdt.
987
988config RTD119X_WATCHDOG
989	bool "Realtek RTD119x/RTD129x watchdog support"
990	depends on ARCH_REALTEK || COMPILE_TEST
991	depends on OF
992	select WATCHDOG_CORE
993	default ARCH_REALTEK
994	help
995	  Say Y here to include support for the watchdog timer in
996	  Realtek RTD1295 SoCs.
997
998config REALTEK_OTTO_WDT
999	tristate "Realtek Otto MIPS watchdog support"
1000	depends on MACH_REALTEK_RTL || COMPILE_TEST
1001	depends on COMMON_CLK
1002	select WATCHDOG_CORE
1003	default MACH_REALTEK_RTL
1004	help
1005	  Say Y here to include support for the watchdog timer on Realtek
1006	  RTL838x, RTL839x, RTL930x SoCs. This watchdog has pretimeout
1007	  notifications and system reset on timeout.
1008
1009	  When built as a module this will be called realtek_otto_wdt.
1010
1011config SPRD_WATCHDOG
1012	tristate "Spreadtrum watchdog support"
1013	depends on ARCH_SPRD || COMPILE_TEST
1014	select WATCHDOG_CORE
1015	help
1016	  Say Y here to include watchdog timer supported
1017	  by Spreadtrum system.
1018
1019config PM8916_WATCHDOG
1020	tristate "QCOM PM8916 pmic watchdog"
1021	depends on OF && MFD_SPMI_PMIC
1022	select WATCHDOG_CORE
1023	help
1024	  Say Y here to include support watchdog timer embedded into the
1025	  pm8916 module.
1026
1027config VISCONTI_WATCHDOG
1028	tristate "Toshiba Visconti series watchdog support"
1029	depends on ARCH_VISCONTI || COMPILE_TEST
1030	select WATCHDOG_CORE
1031	help
1032	  Say Y here to include support for the watchdog timer in Toshiba
1033	  Visconti SoCs.
1034
1035config MSC313E_WATCHDOG
1036	tristate "MStar MSC313e watchdog"
1037	depends on ARCH_MSTARV7 || COMPILE_TEST
1038	select WATCHDOG_CORE
1039	help
1040	  Say Y here to include support for the Watchdog timer embedded
1041	  into MStar MSC313e chips. This will reboot your system when the
1042	  timeout is reached.
1043
1044	  To compile this driver as a module, choose M here: the
1045	  module will be called msc313e_wdt.
1046
1047config APPLE_WATCHDOG
1048	tristate "Apple SoC watchdog"
1049	depends on ARCH_APPLE || COMPILE_TEST
1050	select WATCHDOG_CORE
1051	help
1052	  Say Y here to include support for the Watchdog found in Apple
1053	  SoCs such as the M1. Next to the common watchdog features this
1054	  driver is also required in order to reboot these SoCs.
1055
1056	  To compile this driver as a module, choose M here: the
1057	  module will be called apple_wdt.
1058
1059config SUNPLUS_WATCHDOG
1060	tristate "Sunplus watchdog support"
1061	depends on ARCH_SUNPLUS || COMPILE_TEST
1062	select WATCHDOG_CORE
1063	help
1064	  Say Y here to include support for the watchdog timer
1065	  in Sunplus SoCs.
1066
1067	  To compile this driver as a module, choose M here: the
1068	  module will be called sunplus_wdt.
1069
1070# X86 (i386 + ia64 + x86_64) Architecture
1071
1072config ACQUIRE_WDT
1073	tristate "Acquire SBC Watchdog Timer"
1074	depends on X86
1075	help
1076	  This is the driver for the hardware watchdog on Single Board
1077	  Computers produced by Acquire Inc (and others). This watchdog
1078	  simply watches your kernel to make sure it doesn't freeze, and if
1079	  it does, it reboots your computer after a certain amount of time.
1080
1081	  To compile this driver as a module, choose M here: the
1082	  module will be called acquirewdt.
1083
1084	  Most people will say N.
1085
1086config ADVANTECH_WDT
1087	tristate "Advantech SBC Watchdog Timer"
1088	depends on X86 || COMPILE_TEST
1089	help
1090	  If you are configuring a Linux kernel for the Advantech single-board
1091	  computer, say `Y' here to support its built-in watchdog timer
1092	  feature. More information can be found at
1093	  <https://www.advantech.com.tw/products/>
1094
1095config ADVANTECH_EC_WDT
1096	tristate "Advantech Embedded Controller Watchdog Timer"
1097	depends on X86 || COMPILE_TEST
1098	select ISA_BUS_API
1099	select WATCHDOG_CORE
1100	help
1101		This driver supports Advantech products with ITE based Embedded Controller.
1102		It does not support Advantech products with other ECs or without EC.
1103
1104config ALIM1535_WDT
1105	tristate "ALi M1535 PMU Watchdog Timer"
1106	depends on (X86 || COMPILE_TEST) && PCI
1107	help
1108	  This is the driver for the hardware watchdog on the ALi M1535 PMU.
1109
1110	  To compile this driver as a module, choose M here: the
1111	  module will be called alim1535_wdt.
1112
1113	  Most people will say N.
1114
1115config ALIM7101_WDT
1116	tristate "ALi M7101 PMU Computer Watchdog"
1117	depends on PCI
1118	help
1119	  This is the driver for the hardware watchdog on the ALi M7101 PMU
1120	  as used in the x86 Cobalt servers and also found in some
1121	  SPARC Netra servers too.
1122
1123	  To compile this driver as a module, choose M here: the
1124	  module will be called alim7101_wdt.
1125
1126	  Most people will say N.
1127
1128config EBC_C384_WDT
1129	tristate "WinSystems EBC-C384 Watchdog Timer"
1130	depends on X86 || COMPILE_TEST
1131	select ISA_BUS_API
1132	select WATCHDOG_CORE
1133	help
1134	  Enables watchdog timer support for the watchdog timer on the
1135	  WinSystems EBC-C384 motherboard. The timeout may be configured via
1136	  the timeout module parameter.
1137
1138config EXAR_WDT
1139	tristate "Exar Watchdog Timer"
1140	depends on X86 || COMPILE_TEST
1141	select WATCHDOG_CORE
1142	help
1143	  Enables watchdog timer support for the watchdog timer present
1144	  in some Exar/MaxLinear UART chips like the XR28V38x.
1145
1146	  To compile this driver as a module, choose M here: the
1147	  module will be called exar_wdt.
1148
1149config F71808E_WDT
1150	tristate "Fintek F718xx, F818xx Super I/O Watchdog"
1151	depends on X86 || COMPILE_TEST
1152	select WATCHDOG_CORE
1153	help
1154	  This is the driver for the hardware watchdog on the Fintek F71808E,
1155	  F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and
1156	  F81866 Super I/O controllers.
1157
1158	  You can compile this driver directly into the kernel, or use
1159	  it as a module.  The module will be called f71808e_wdt.
1160
1161config SP5100_TCO
1162	tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
1163	depends on (X86 || COMPILE_TEST) && PCI
1164	select WATCHDOG_CORE
1165	help
1166	  Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
1167	  (Total Cost of Ownership) timer is a watchdog timer that will reboot
1168	  the machine after its expiration. The expiration time can be
1169	  configured with the "heartbeat" parameter.
1170
1171	  To compile this driver as a module, choose M here: the
1172	  module will be called sp5100_tco.
1173
1174config GEODE_WDT
1175	tristate "AMD Geode CS5535/CS5536 Watchdog"
1176	depends on CS5535_MFGPT
1177	help
1178	  This driver enables a watchdog capability built into the
1179	  CS5535/CS5536 companion chips for the AMD Geode GX and LX
1180	  processors.  This watchdog watches your kernel to make sure
1181	  it doesn't freeze, and if it does, it reboots your computer after
1182	  a certain amount of time.
1183
1184	  You can compile this driver directly into the kernel, or use
1185	  it as a module.  The module will be called geodewdt.
1186
1187config SC520_WDT
1188	tristate "AMD Elan SC520 processor Watchdog"
1189	depends on MELAN || COMPILE_TEST
1190	help
1191	  This is the driver for the hardware watchdog built in to the
1192	  AMD "Elan" SC520 microcomputer commonly used in embedded systems.
1193	  This watchdog simply watches your kernel to make sure it doesn't
1194	  freeze, and if it does, it reboots your computer after a certain
1195	  amount of time.
1196
1197	  You can compile this driver directly into the kernel, or use
1198	  it as a module.  The module will be called sc520_wdt.
1199
1200config SBC_FITPC2_WATCHDOG
1201	tristate "Compulab SBC-FITPC2 watchdog"
1202	depends on X86 || COMPILE_TEST
1203	help
1204	  This is the driver for the built-in watchdog timer on the fit-PC2,
1205	  fit-PC2i, CM-iAM single-board computers made by Compulab.
1206
1207	  It's possible to enable the watchdog timer either from BIOS (F2) or
1208	  from booted Linux.
1209	  When the "Watchdog Timer Value" is enabled one can set 31-255 seconds
1210	  operational range.
1211
1212	  Entering BIOS setup temporarily disables watchdog operation regardless
1213	  of current state, so system will not be restarted while user is in
1214	  BIOS setup.
1215
1216	  Once the watchdog is enabled the system will be restarted every
1217	  "Watchdog Timer Value" period, so to prevent it user can restart or
1218	  disable the watchdog.
1219
1220	  To compile this driver as a module, choose M here: the
1221	  module will be called sbc_fitpc2_wdt.
1222
1223	  Most people will say N.
1224
1225config EUROTECH_WDT
1226	tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1227	depends on X86 || COMPILE_TEST
1228	help
1229	  Enable support for the watchdog timer on the Eurotech CPU-1220 and
1230	  CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
1231	  information are at <http://www.eurotech.it/>.
1232
1233config IB700_WDT
1234	tristate "IB700 SBC Watchdog Timer"
1235	depends on X86 || COMPILE_TEST
1236	help
1237	  This is the driver for the hardware watchdog on the IB700 Single
1238	  Board Computer produced by TMC Technology (www.tmc-uk.com). This
1239	  watchdog simply watches your kernel to make sure it doesn't freeze,
1240	  and if it does, it reboots your computer after a certain amount of time.
1241
1242	  This driver is like the WDT501 driver but for slightly different
1243	  hardware.
1244
1245	  To compile this driver as a module, choose M here: the
1246	  module will be called ib700wdt.
1247
1248	  Most people will say N.
1249
1250config IBMASR
1251	tristate "IBM Automatic Server Restart"
1252	depends on X86 || COMPILE_TEST
1253	help
1254	  This is the driver for the IBM Automatic Server Restart watchdog
1255	  timer built-in into some eServer xSeries machines.
1256
1257	  To compile this driver as a module, choose M here: the
1258	  module will be called ibmasr.
1259
1260config WAFER_WDT
1261	tristate "ICP Single Board Computer Watchdog Timer"
1262	depends on X86 || COMPILE_TEST
1263	help
1264	  This is a driver for the hardware watchdog on the ICP Single
1265	  Board Computer. This driver is working on (at least) the following
1266	  IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1267
1268	  To compile this driver as a module, choose M here: the
1269	  module will be called wafer5823wdt.
1270
1271config I6300ESB_WDT
1272	tristate "Intel 6300ESB Timer/Watchdog"
1273	depends on PCI
1274	select WATCHDOG_CORE
1275	help
1276	  Hardware driver for the watchdog timer built into the Intel
1277	  6300ESB controller hub.
1278
1279	  To compile this driver as a module, choose M here: the
1280	  module will be called i6300esb.
1281
1282config IE6XX_WDT
1283	tristate "Intel Atom E6xx Watchdog"
1284	depends on (X86 || COMPILE_TEST) && PCI
1285	select WATCHDOG_CORE
1286	select MFD_CORE
1287	select LPC_SCH
1288	help
1289	  Hardware driver for the watchdog timer built into the Intel
1290	  Atom E6XX (TunnelCreek) processor.
1291
1292	  To compile this driver as a module, choose M here: the
1293	  module will be called ie6xx_wdt.
1294
1295config INTEL_MID_WATCHDOG
1296	tristate "Intel MID Watchdog Timer"
1297	depends on X86_INTEL_MID
1298	select WATCHDOG_CORE
1299	help
1300	  Watchdog timer driver built into the Intel SCU for Intel MID
1301	  Platforms.
1302
1303	  This driver currently supports only the watchdog evolution
1304	  implementation in SCU, available for Merrifield generation.
1305
1306	  To compile this driver as a module, choose M here.
1307
1308config ITCO_WDT
1309	tristate "Intel TCO Timer/Watchdog"
1310	depends on X86 && PCI
1311	select WATCHDOG_CORE
1312	depends on I2C || I2C=n
1313	depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT
1314	select LPC_ICH if !EXPERT
1315	select I2C_I801 if !EXPERT && I2C
1316	help
1317	  Hardware driver for the intel TCO timer based watchdog devices.
1318	  These drivers are included in the Intel 82801 I/O Controller
1319	  Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1320	  controller hub.
1321
1322	  The TCO (Total Cost of Ownership) timer is a watchdog timer
1323	  that will reboot the machine after its second expiration. The
1324	  expiration time can be configured with the "heartbeat" parameter.
1325
1326	  On some motherboards the driver may fail to reset the chipset's
1327	  NO_REBOOT flag which prevents the watchdog from rebooting the
1328	  machine. If this is the case you will get a kernel message like
1329	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1330
1331	  To compile this driver as a module, choose M here: the
1332	  module will be called iTCO_wdt.
1333
1334config ITCO_VENDOR_SUPPORT
1335	bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1336	depends on ITCO_WDT
1337	help
1338	  Add vendor specific support to the intel TCO timer based watchdog
1339	  devices. At this moment we only have additional support for some
1340	  SuperMicro Inc. motherboards.
1341
1342config IT8712F_WDT
1343	tristate "IT8712F (Smart Guardian) Watchdog Timer"
1344	depends on X86 || COMPILE_TEST
1345	help
1346	  This is the driver for the built-in watchdog timer on the IT8712F
1347	  Super I/0 chipset used on many motherboards.
1348
1349	  If the driver does not work, then make sure that the game port in
1350	  the BIOS is enabled.
1351
1352	  To compile this driver as a module, choose M here: the
1353	  module will be called it8712f_wdt.
1354
1355config IT87_WDT
1356	tristate "IT87 Watchdog Timer"
1357	depends on X86 || COMPILE_TEST
1358	select WATCHDOG_CORE
1359	help
1360	  This is the driver for the hardware watchdog on the ITE IT8607,
1361	  IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1362	  IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1363	  IT8783 Super I/O chips.
1364
1365	  This watchdog simply watches your kernel to make sure it doesn't
1366	  freeze, and if it does, it reboots your computer after a certain
1367	  amount of time.
1368
1369	  To compile this driver as a module, choose M here: the module will
1370	  be called it87_wdt.
1371
1372config HP_WATCHDOG
1373	tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1374	select WATCHDOG_CORE
1375	depends on (ARM64 || X86 || COMPILE_TEST) && PCI
1376	help
1377	  A software monitoring watchdog and NMI handling driver. This driver
1378	  will detect lockups and provide a stack trace. This is a driver that
1379	  will only load on an HP ProLiant system with a minimum of iLO2 support.
1380	  To compile this driver as a module, choose M here: the module will be
1381	  called hpwdt.
1382
1383config HPWDT_NMI_DECODING
1384	bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1385	depends on X86 && HP_WATCHDOG
1386	default y
1387	help
1388	  Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1389	  "Generate NMI to System" virtual button.  When an NMI is claimed
1390	  by the driver, panic is called.
1391
1392config KEMPLD_WDT
1393	tristate "Kontron COM Watchdog Timer"
1394	depends on MFD_KEMPLD
1395	select WATCHDOG_CORE
1396	help
1397	  Support for the PLD watchdog on some Kontron ETX and COMexpress
1398	  (ETXexpress) modules
1399
1400	  This driver can also be built as a module. If so, the module will be
1401	  called kempld_wdt.
1402
1403config SC1200_WDT
1404	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1405	depends on X86 || COMPILE_TEST
1406	help
1407	  This is a driver for National Semiconductor PC87307/PC97307 hardware
1408	  watchdog cards as found on the SC1200. This watchdog is mainly used
1409	  for power management purposes and can be used to power down the device
1410	  during inactivity periods (includes interrupt activity monitoring).
1411
1412	  To compile this driver as a module, choose M here: the
1413	  module will be called sc1200wdt.
1414
1415	  Most people will say N.
1416
1417config SCx200_WDT
1418	tristate "National Semiconductor SCx200 Watchdog"
1419	depends on SCx200 && PCI
1420	help
1421	  Enable the built-in watchdog timer support on the National
1422	  Semiconductor SCx200 processors.
1423
1424	  If compiled as a module, it will be called scx200_wdt.
1425
1426config PC87413_WDT
1427	tristate "NS PC87413 watchdog"
1428	depends on X86 || COMPILE_TEST
1429	help
1430	  This is the driver for the hardware watchdog on the PC87413 chipset
1431	  This watchdog simply watches your kernel to make sure it doesn't
1432	  freeze, and if it does, it reboots your computer after a certain
1433	  amount of time.
1434
1435	  To compile this driver as a module, choose M here: the
1436	  module will be called pc87413_wdt.
1437
1438	  Most people will say N.
1439
1440config NV_TCO
1441	tristate "nVidia TCO Timer/Watchdog"
1442	depends on (X86 || COMPILE_TEST) && PCI
1443	help
1444	  Hardware driver for the TCO timer built into the nVidia Hub family
1445	  (such as the MCP51).  The TCO (Total Cost of Ownership) timer is a
1446	  watchdog timer that will reboot the machine after its second
1447	  expiration. The expiration time can be configured with the
1448	  "heartbeat" parameter.
1449
1450	  On some motherboards the driver may fail to reset the chipset's
1451	  NO_REBOOT flag which prevents the watchdog from rebooting the
1452	  machine. If this is the case you will get a kernel message like
1453	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1454
1455	  To compile this driver as a module, choose M here: the
1456	  module will be called nv_tco.
1457
1458config RDC321X_WDT
1459	tristate "RDC R-321x SoC watchdog"
1460	depends on X86_RDC321X || COMPILE_TEST
1461	depends on PCI
1462	help
1463	  This is the driver for the built in hardware watchdog
1464	  in the RDC R-321x SoC.
1465
1466	  To compile this driver as a module, choose M here: the
1467	  module will be called rdc321x_wdt.
1468
1469config 60XX_WDT
1470	tristate "SBC-60XX Watchdog Timer"
1471	depends on X86 || COMPILE_TEST
1472	help
1473	  This driver can be used with the watchdog timer found on some
1474	  single board computers, namely the 6010 PII based computer.
1475	  It may well work with other cards.  It reads port 0x443 to enable
1476	  and re-set the watchdog timer, and reads port 0x45 to disable
1477	  the watchdog.  If you have a card that behave in similar ways,
1478	  you can probably make this driver work with your card as well.
1479
1480	  You can compile this driver directly into the kernel, or use
1481	  it as a module.  The module will be called sbc60xxwdt.
1482
1483config SBC8360_WDT
1484	tristate "SBC8360 Watchdog Timer"
1485	depends on X86_32
1486	help
1487
1488	  This is the driver for the hardware watchdog on the SBC8360 Single
1489	  Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1490
1491	  To compile this driver as a module, choose M here: the
1492	  module will be called sbc8360.
1493
1494	  Most people will say N.
1495
1496config SBC7240_WDT
1497	tristate "SBC Nano 7240 Watchdog Timer"
1498	depends on X86_32 && !UML
1499	help
1500	  This is the driver for the hardware watchdog found on the IEI
1501	  single board computers EPIC Nano 7240 (and likely others). This
1502	  watchdog simply watches your kernel to make sure it doesn't freeze,
1503	  and if it does, it reboots your computer after a certain amount of
1504	  time.
1505
1506	  To compile this driver as a module, choose M here: the
1507	  module will be called sbc7240_wdt.
1508
1509config CPU5_WDT
1510	tristate "SMA CPU5 Watchdog"
1511	depends on X86 || COMPILE_TEST
1512	help
1513	  TBD.
1514	  To compile this driver as a module, choose M here: the
1515	  module will be called cpu5wdt.
1516
1517config SMSC_SCH311X_WDT
1518	tristate "SMSC SCH311X Watchdog Timer"
1519	depends on X86 || COMPILE_TEST
1520	help
1521	  This is the driver for the hardware watchdog timer on the
1522	  SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1523	  (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1524	  serial ports).
1525
1526	  To compile this driver as a module, choose M here: the
1527	  module will be called sch311x_wdt.
1528
1529config SMSC37B787_WDT
1530	tristate "Winbond SMsC37B787 Watchdog Timer"
1531	depends on X86 || COMPILE_TEST
1532	help
1533	  This is the driver for the hardware watchdog component on the
1534	  Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1535	  from Vision Systems and maybe others.
1536
1537	  This watchdog simply watches your kernel to make sure it doesn't
1538	  freeze, and if it does, it reboots your computer after a certain
1539	  amount of time.
1540
1541	  Usually a userspace daemon will notify the kernel WDT driver that
1542	  userspace is still alive, at regular intervals.
1543
1544	  To compile this driver as a module, choose M here: the
1545	  module will be called smsc37b787_wdt.
1546
1547	  Most people will say N.
1548
1549config TQMX86_WDT
1550	tristate "TQ-Systems TQMX86 Watchdog Timer"
1551	depends on X86 || COMPILE_TEST
1552	select WATCHDOG_CORE
1553	help
1554	  This is the driver for the hardware watchdog timer in the TQMX86 IO
1555	  controller found on some of their ComExpress Modules.
1556
1557	  To compile this driver as a module, choose M here; the module
1558	  will be called tqmx86_wdt.
1559
1560	  Most people will say N.
1561
1562config VIA_WDT
1563	tristate "VIA Watchdog Timer"
1564	depends on (X86 || COMPILE_TEST) && PCI
1565	select WATCHDOG_CORE
1566	help
1567	  This is the driver for the hardware watchdog timer on VIA
1568	  southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1569
1570	  To compile this driver as a module, choose M here; the module
1571	  will be called via_wdt.
1572
1573	  Most people will say N.
1574
1575config W83627HF_WDT
1576	tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1577	depends on X86 || COMPILE_TEST
1578	select WATCHDOG_CORE
1579	help
1580	  This is the driver for the hardware watchdog on the following
1581	  Super I/O chips.
1582		W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1583		W83637HF
1584		W83667HG/HG-B
1585		W83687THF
1586		W83697HF
1587		W83697UG
1588		NCT6775
1589		NCT6776
1590		NCT6779
1591		NCT6791
1592		NCT6792
1593		NCT6102D/04D/06D
1594		NCT6116D
1595
1596	  This watchdog simply watches your kernel to make sure it doesn't
1597	  freeze, and if it does, it reboots your computer after a certain
1598	  amount of time.
1599
1600	  To compile this driver as a module, choose M here: the
1601	  module will be called w83627hf_wdt.
1602
1603	  Most people will say N.
1604
1605config W83877F_WDT
1606	tristate "W83877F (EMACS) Watchdog Timer"
1607	depends on X86 || COMPILE_TEST
1608	help
1609	  This is the driver for the hardware watchdog on the W83877F chipset
1610	  as used in EMACS PC-104 motherboards (and likely others).  This
1611	  watchdog simply watches your kernel to make sure it doesn't freeze,
1612	  and if it does, it reboots your computer after a certain amount of
1613	  time.
1614
1615	  To compile this driver as a module, choose M here: the
1616	  module will be called w83877f_wdt.
1617
1618	  Most people will say N.
1619
1620config W83977F_WDT
1621	tristate "W83977F (PCM-5335) Watchdog Timer"
1622	depends on X86 || COMPILE_TEST
1623	help
1624	  This is the driver for the hardware watchdog on the W83977F I/O chip
1625	  as used in AAEON's PCM-5335 SBC (and likely others).  This
1626	  watchdog simply watches your kernel to make sure it doesn't freeze,
1627	  and if it does, it reboots your computer after a certain amount of
1628	  time.
1629
1630	  To compile this driver as a module, choose M here: the
1631	  module will be called w83977f_wdt.
1632
1633config MACHZ_WDT
1634	tristate "ZF MachZ Watchdog"
1635	depends on X86 || COMPILE_TEST
1636	help
1637	  If you are using a ZF Micro MachZ processor, say Y here, otherwise
1638	  N.  This is the driver for the watchdog timer built-in on that
1639	  processor using ZF-Logic interface.  This watchdog simply watches
1640	  your kernel to make sure it doesn't freeze, and if it does, it
1641	  reboots your computer after a certain amount of time.
1642
1643	  To compile this driver as a module, choose M here: the
1644	  module will be called machzwd.
1645
1646config SBC_EPX_C3_WATCHDOG
1647	tristate "Winsystems SBC EPX-C3 watchdog"
1648	depends on X86 || COMPILE_TEST
1649	help
1650	  This is the driver for the built-in watchdog timer on the EPX-C3
1651	  Single-board computer made by Winsystems, Inc.
1652
1653	  *Note*: This hardware watchdog is not probeable and thus there
1654	  is no way to know if writing to its IO address will corrupt
1655	  your system or have any real effect.  The only way to be sure
1656	  that this driver does what you want is to make sure you
1657	  are running it on an EPX-C3 from Winsystems with the watchdog
1658	  timer at IO address 0x1ee and 0x1ef.  It will write to both those
1659	  IO ports.  Basically, the assumption is made that if you compile
1660	  this driver into your kernel and/or load it as a module, that you
1661	  know what you are doing and that you are in fact running on an
1662	  EPX-C3 board!
1663
1664	  To compile this driver as a module, choose M here: the
1665	  module will be called sbc_epx_c3.
1666
1667config INTEL_MEI_WDT
1668	tristate "Intel MEI iAMT Watchdog"
1669	depends on INTEL_MEI && X86
1670	select WATCHDOG_CORE
1671	help
1672	  A device driver for the Intel MEI iAMT watchdog.
1673
1674	  The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1675	  Whenever the OS hangs or crashes, iAMT will send an event
1676	  to any subscriber to this event. The watchdog doesn't reset the
1677	  the platform.
1678
1679	  To compile this driver as a module, choose M here:
1680	  the module will be called mei_wdt.
1681
1682config NI903X_WDT
1683	tristate "NI 903x/913x Watchdog"
1684	depends on X86 && ACPI
1685	select WATCHDOG_CORE
1686	help
1687	  This is the driver for the watchdog timer on the National Instruments
1688	  903x/913x real-time controllers.
1689
1690	  To compile this driver as a module, choose M here: the module will be
1691	  called ni903x_wdt.
1692
1693config NIC7018_WDT
1694	tristate "NIC7018 Watchdog"
1695	depends on X86 && ACPI
1696	select WATCHDOG_CORE
1697	help
1698	  Support for National Instruments NIC7018 Watchdog.
1699
1700	  To compile this driver as a module, choose M here: the module will be
1701	  called nic7018_wdt.
1702
1703config SIEMENS_SIMATIC_IPC_WDT
1704	tristate "Siemens Simatic IPC Watchdog"
1705	depends on SIEMENS_SIMATIC_IPC && PCI
1706	default y
1707	select WATCHDOG_CORE
1708	select P2SB if X86
1709	help
1710	  This driver adds support for several watchdogs found in Industrial
1711	  PCs from Siemens.
1712
1713	  To compile this driver as a module, choose M here: the module will be
1714	  called simatic-ipc-wdt.
1715
1716# M68K Architecture
1717
1718config M54xx_WATCHDOG
1719	tristate "MCF54xx watchdog support"
1720	depends on M548x
1721	help
1722	  To compile this driver as a module, choose M here: the
1723	  module will be called m54xx_wdt.
1724
1725# MicroBlaze Architecture
1726
1727# MIPS Architecture
1728
1729config ATH79_WDT
1730	tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1731	depends on ATH79 || (ARM && COMPILE_TEST)
1732	help
1733	  Hardware driver for the built-in watchdog timer on the Atheros
1734	  AR71XX/AR724X/AR913X SoCs.
1735
1736config BCM47XX_WDT
1737	tristate "Broadcom BCM47xx Watchdog Timer"
1738	depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1739	select WATCHDOG_CORE
1740	help
1741	  Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1742
1743config RC32434_WDT
1744	tristate "IDT RC32434 SoC Watchdog Timer"
1745	depends on MIKROTIK_RB532
1746	help
1747	  Hardware driver for the IDT RC32434 SoC built-in
1748	  watchdog timer.
1749
1750	  To compile this driver as a module, choose M here: the
1751	  module will be called rc32434_wdt.
1752
1753config INDYDOG
1754	tristate "Indy/I2 Hardware Watchdog"
1755	depends on SGI_HAS_INDYDOG
1756	help
1757	  Hardware driver for the Indy's/I2's watchdog. This is a
1758	  watchdog timer that will reboot the machine after a 60 second
1759	  timer expired and no process has written to /dev/watchdog during
1760	  that time.
1761
1762config JZ4740_WDT
1763	tristate "Ingenic jz4740 SoC hardware watchdog"
1764	depends on MIPS || COMPILE_TEST
1765	depends on COMMON_CLK
1766	select WATCHDOG_CORE
1767	select MFD_SYSCON
1768	help
1769	  Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1770
1771config WDT_MTX1
1772	tristate "MTX-1 Hardware Watchdog"
1773	depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1774	help
1775	  Hardware driver for the MTX-1 boards. This is a watchdog timer that
1776	  will reboot the machine after a 100 seconds timer expired.
1777
1778config SIBYTE_WDOG
1779	tristate "Sibyte SoC hardware watchdog"
1780	depends on CPU_SB1
1781	help
1782	  Watchdog driver for the built in watchdog hardware in Sibyte
1783	  SoC processors.  There are apparently two watchdog timers
1784	  on such processors; this driver supports only the first one,
1785	  because currently Linux only supports exporting one watchdog
1786	  to userspace.
1787
1788	  To compile this driver as a loadable module, choose M here.
1789	  The module will be called sb_wdog.
1790
1791config TXX9_WDT
1792	tristate "Toshiba TXx9 Watchdog Timer"
1793	depends on CPU_TX49XX || (MIPS && COMPILE_TEST)
1794	select WATCHDOG_CORE
1795	help
1796	  Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1797
1798config OCTEON_WDT
1799	tristate "Cavium OCTEON SOC family Watchdog Timer"
1800	depends on CAVIUM_OCTEON_SOC
1801	default y
1802	select WATCHDOG_CORE
1803	select EXPORT_UASM if OCTEON_WDT = m
1804	help
1805	  Hardware driver for OCTEON's on chip watchdog timer.
1806	  Enables the watchdog for all cores running Linux. It
1807	  installs a NMI handler and pokes the watchdog based on an
1808	  interrupt.  On first expiration of the watchdog, the
1809	  interrupt handler pokes it.  The second expiration causes an
1810	  NMI that prints a message. The third expiration causes a
1811	  global soft reset.
1812
1813	  When userspace has /dev/watchdog open, no poking is done
1814	  from the first interrupt, it is then only poked when the
1815	  device is written.
1816
1817config MARVELL_GTI_WDT
1818	tristate "Marvell GTI Watchdog driver"
1819	depends on ARCH_THUNDER || (COMPILE_TEST && 64BIT)
1820	default y
1821	select WATCHDOG_CORE
1822	help
1823	  Marvell GTI hardware supports watchdog timer. First timeout
1824	  works as watchdog pretimeout and installed interrupt handler
1825	  will be called on first timeout. Hardware can generate interrupt
1826	  to SCP on second timeout but it is not enabled, so second
1827	  timeout is ignored. If device poke does not happen then system
1828	  will reboot on third timeout.
1829
1830config BCM2835_WDT
1831	tristate "Broadcom BCM2835 hardware watchdog"
1832	depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1833	select WATCHDOG_CORE
1834	help
1835	  Watchdog driver for the built in watchdog hardware in Broadcom
1836	  BCM2835 SoC.
1837
1838	  To compile this driver as a loadable module, choose M here.
1839	  The module will be called bcm2835_wdt.
1840
1841config BCM_KONA_WDT
1842	tristate "BCM Kona Watchdog"
1843	depends on ARCH_BCM_MOBILE || COMPILE_TEST
1844	select WATCHDOG_CORE
1845	help
1846	  Support for the watchdog timer on the following Broadcom BCM281xx
1847	  family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1848	  BCM28155 variants.
1849
1850	  Say 'Y' or 'M' here to enable the driver. The module will be called
1851	  bcm_kona_wdt.
1852
1853config BCM_KONA_WDT_DEBUG
1854	bool "DEBUGFS support for BCM Kona Watchdog"
1855	depends on BCM_KONA_WDT || COMPILE_TEST
1856	help
1857	  If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1858	  access to the driver's internal data structures as well as watchdog
1859	  timer hardware registres.
1860
1861	  If in doubt, say 'N'.
1862
1863config BCM7038_WDT
1864	tristate "BCM63xx/BCM7038 Watchdog"
1865	select WATCHDOG_CORE
1866	depends on HAS_IOMEM
1867	depends on ARCH_BCMBCA || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || COMPILE_TEST
1868	help
1869	  Watchdog driver for the built-in hardware in Broadcom 7038 and
1870	  later SoCs used in set-top boxes.  BCM7038 was made public
1871	  during the 2004 CES, and since then, many Broadcom chips use this
1872	  watchdog block, including some cable modem chips and DSL (63xx)
1873	  chips.
1874
1875config IMGPDC_WDT
1876	tristate "Imagination Technologies PDC Watchdog Timer"
1877	depends on HAS_IOMEM
1878	depends on MIPS || COMPILE_TEST
1879	select WATCHDOG_CORE
1880	help
1881	  Driver for Imagination Technologies PowerDown Controller
1882	  Watchdog Timer.
1883
1884	  To compile this driver as a loadable module, choose M here.
1885	  The module will be called imgpdc_wdt.
1886
1887config LANTIQ_WDT
1888	tristate "Lantiq SoC watchdog"
1889	depends on LANTIQ
1890	select WATCHDOG_CORE
1891	help
1892	  Hardware driver for the Lantiq SoC Watchdog Timer.
1893
1894config LOONGSON1_WDT
1895	tristate "Loongson1 SoC hardware watchdog"
1896	depends on MACH_LOONGSON32 || COMPILE_TEST
1897	select WATCHDOG_CORE
1898	help
1899	  Hardware driver for the Loongson1 SoC Watchdog Timer.
1900
1901config RALINK_WDT
1902	tristate "Ralink SoC watchdog"
1903	select WATCHDOG_CORE
1904	depends on RALINK
1905	help
1906	  Hardware driver for the Ralink SoC Watchdog Timer.
1907
1908config GXP_WATCHDOG
1909	tristate "HPE GXP watchdog support"
1910	depends on ARCH_HPE_GXP || COMPILE_TEST
1911	select WATCHDOG_CORE
1912	help
1913	  Say Y here to include support for the watchdog timer
1914	  in HPE GXP SoCs.
1915
1916	  To compile this driver as a module, choose M here.
1917	  The module will be called gxp-wdt.
1918
1919config MT7621_WDT
1920	tristate "Mediatek SoC watchdog"
1921	select WATCHDOG_CORE
1922	select REGMAP_MMIO
1923	select MFD_SYSCON
1924	depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
1925	help
1926	  Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1927
1928config PIC32_WDT
1929	tristate "Microchip PIC32 hardware watchdog"
1930	select WATCHDOG_CORE
1931	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1932	help
1933	  Watchdog driver for the built in watchdog hardware in a PIC32.
1934
1935	  Configuration bits must be set appropriately for the watchdog to be
1936	  controlled by this driver.
1937
1938	  To compile this driver as a loadable module, choose M here.
1939	  The module will be called pic32-wdt.
1940
1941config PIC32_DMT
1942	tristate "Microchip PIC32 Deadman Timer"
1943	select WATCHDOG_CORE
1944	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1945	help
1946	  Watchdog driver for PIC32 instruction fetch counting timer. This
1947	  specific timer is typically be used in mission critical and safety
1948	  critical applications, where any single failure of the software
1949	  functionality and sequencing must be detected.
1950
1951	  To compile this driver as a loadable module, choose M here.
1952	  The module will be called pic32-dmt.
1953
1954# PARISC Architecture
1955
1956# POWERPC Architecture
1957
1958config GEF_WDT
1959	tristate "GE Watchdog Timer"
1960	depends on GE_FPGA
1961	help
1962	  Watchdog timer found in a number of GE single board computers.
1963
1964config MPC5200_WDT
1965	bool "MPC52xx Watchdog Timer"
1966	depends on PPC_MPC52xx || COMPILE_TEST
1967	help
1968	  Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1969
1970config 8xxx_WDT
1971	tristate "MPC8xxx Platform Watchdog Timer"
1972	depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1973	select WATCHDOG_CORE
1974	help
1975	  This driver is for a SoC level watchdog that exists on some
1976	  Freescale PowerPC processors. So far this driver supports:
1977	  - MPC8xx watchdogs
1978	  - MPC83xx watchdogs
1979	  - MPC86xx watchdogs
1980
1981	  For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1982
1983config PIKA_WDT
1984	tristate "PIKA FPGA Watchdog"
1985	depends on WARP || (PPC64 && COMPILE_TEST)
1986	default y
1987	help
1988	  This enables the watchdog in the PIKA FPGA. Currently used on
1989	  the Warp platform.
1990
1991config BOOKE_WDT
1992	tristate "PowerPC Book-E Watchdog Timer"
1993	depends on BOOKE || 4xx
1994	select WATCHDOG_CORE
1995	help
1996	  Watchdog driver for PowerPC Book-E chips, such as the Freescale
1997	  MPC85xx SOCs and the IBM PowerPC 440.
1998
1999	  Please see Documentation/watchdog/watchdog-api.rst for
2000	  more information.
2001
2002config BOOKE_WDT_DEFAULT_TIMEOUT
2003	int "PowerPC Book-E Watchdog Timer Default Timeout"
2004	depends on BOOKE_WDT
2005	default 38 if PPC_E500
2006	range 0 63 if PPC_E500
2007	default 3 if !PPC_E500
2008	range 0 3 if !PPC_E500
2009	help
2010	  Select the default watchdog timer period to be used by the PowerPC
2011	  Book-E watchdog driver.  A watchdog "event" occurs when the bit
2012	  position represented by this number transitions from zero to one.
2013
2014	  For Freescale Book-E processors, this is a number between 0 and 63.
2015	  For other Book-E processors, this is a number between 0 and 3.
2016
2017	  The value can be overridden by the wdt_period command-line parameter.
2018
2019config MEN_A21_WDT
2020	tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
2021	select WATCHDOG_CORE
2022	depends on GPIOLIB || COMPILE_TEST
2023	help
2024	  Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
2025
2026	  The driver can also be built as a module. If so, the module will be
2027	  called mena21_wdt.
2028
2029	  If unsure select N here.
2030
2031# PPC64 Architecture
2032
2033config PSERIES_WDT
2034	tristate "POWER Architecture Platform Watchdog Timer"
2035	depends on PPC_PSERIES
2036	select WATCHDOG_CORE
2037	help
2038	  Driver for virtual watchdog timers provided by PAPR
2039	  hypervisors (e.g. PowerVM, KVM).
2040
2041config WATCHDOG_RTAS
2042	tristate "RTAS watchdog"
2043	depends on PPC_RTAS
2044	help
2045	  This driver adds watchdog support for the RTAS watchdog.
2046
2047	  To compile this driver as a module, choose M here. The module
2048	  will be called wdrtas.
2049
2050# RISC-V Architecture
2051
2052config STARFIVE_WATCHDOG
2053	tristate "StarFive Watchdog support"
2054	depends on ARCH_STARFIVE || COMPILE_TEST
2055	select WATCHDOG_CORE
2056	default ARCH_STARFIVE
2057	help
2058	  Say Y here to support the watchdog of StarFive JH7100 and JH7110
2059	  SoC. This driver can also be built as a module if choose M.
2060
2061# S390 Architecture
2062
2063config DIAG288_WATCHDOG
2064	tristate "System z diag288 Watchdog"
2065	depends on S390
2066	select WATCHDOG_CORE
2067	help
2068	  IBM s/390 and zSeries machines running under z/VM 5.1 or later
2069	  provide a virtual watchdog timer to their guest that cause a
2070	  user define Control Program command to be executed after a
2071	  timeout.
2072	  LPAR provides a very similar interface. This driver handles
2073	  both.
2074
2075	  To compile this driver as a module, choose M here. The module
2076	  will be called diag288_wdt.
2077
2078# SUPERH (sh + sh64) Architecture
2079
2080config SH_WDT
2081	tristate "SuperH Watchdog"
2082	depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
2083	select WATCHDOG_CORE
2084	help
2085	  This driver adds watchdog support for the integrated watchdog in the
2086	  SuperH processors. If you have one of these processors and wish
2087	  to have watchdog support enabled, say Y, otherwise say N.
2088
2089	  As a side note, saying Y here will automatically boost HZ to 1000
2090	  so that the timer has a chance to clear the overflow counter. On
2091	  slower systems (such as the SH-2 and SH-3) this will likely yield
2092	  some performance issues. As such, the WDT should be avoided here
2093	  unless it is absolutely necessary.
2094
2095	  To compile this driver as a module, choose M here: the
2096	  module will be called shwdt.
2097
2098# SPARC Architecture
2099
2100# SPARC64 Architecture
2101
2102config WATCHDOG_CP1XXX
2103	tristate "CP1XXX Hardware Watchdog support"
2104	depends on SPARC64 && PCI
2105	help
2106	  This is the driver for the hardware watchdog timers present on
2107	  Sun Microsystems CompactPCI models CP1400 and CP1500.
2108
2109	  To compile this driver as a module, choose M here: the
2110	  module will be called cpwatchdog.
2111
2112	  If you do not have a CompactPCI model CP1400 or CP1500, or
2113	  another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
2114	  you should say N to this option.
2115
2116config WATCHDOG_RIO
2117	tristate "RIO Hardware Watchdog support"
2118	depends on SPARC64 && PCI
2119	help
2120	  Say Y here to support the hardware watchdog capability on Sun RIO
2121	  machines.  The watchdog timeout period is normally one minute but
2122	  can be changed with a boot-time parameter.
2123
2124config WATCHDOG_SUN4V
2125	tristate "Sun4v Watchdog support"
2126	select WATCHDOG_CORE
2127	depends on SPARC64
2128	help
2129	  Say Y here to support the hypervisor watchdog capability embedded
2130	  in the SPARC sun4v architecture.
2131
2132	  To compile this driver as a module, choose M here. The module will
2133	  be called sun4v_wdt.
2134
2135# XTENSA Architecture
2136
2137# Xen Architecture
2138
2139config XEN_WDT
2140	tristate "Xen Watchdog support"
2141	depends on XEN
2142	select WATCHDOG_CORE
2143	help
2144	  Say Y here to support the hypervisor watchdog capability provided
2145	  by Xen 4.0 and newer.  The watchdog timeout period is normally one
2146	  minute but can be changed with a boot-time parameter.
2147
2148config UML_WATCHDOG
2149	tristate "UML watchdog"
2150	depends on UML || COMPILE_TEST
2151
2152#
2153# ISA-based Watchdog Cards
2154#
2155
2156comment "ISA-based Watchdog Cards"
2157	depends on ISA
2158
2159config PCWATCHDOG
2160	tristate "Berkshire Products ISA-PC Watchdog"
2161	depends on ISA
2162	help
2163	  This is the driver for the Berkshire Products ISA-PC Watchdog card.
2164	  This card simply watches your kernel to make sure it doesn't freeze,
2165	  and if it does, it reboots your computer after a certain amount of
2166	  time. This driver is like the WDT501 driver but for different
2167	  hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>.
2168	  The PC watchdog cards can be ordered from <http://www.berkprod.com/>.
2169
2170	  To compile this driver as a module, choose M here: the
2171	  module will be called pcwd.
2172
2173	  Most people will say N.
2174
2175config MIXCOMWD
2176	tristate "Mixcom Watchdog"
2177	depends on ISA
2178	help
2179	  This is a driver for the Mixcom hardware watchdog cards.  This
2180	  watchdog 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.
2183
2184	  To compile this driver as a module, choose M here: the
2185	  module will be called mixcomwd.
2186
2187	  Most people will say N.
2188
2189config WDT
2190	tristate "WDT Watchdog timer"
2191	depends on ISA
2192	help
2193	  If you have a WDT500P or WDT501P watchdog board, say Y here,
2194	  otherwise N. It is not possible to probe for this board, which means
2195	  that you have to inform the kernel about the IO port and IRQ that
2196	  is needed (you can do this via the io and irq parameters)
2197
2198	  To compile this driver as a module, choose M here: the
2199	  module will be called wdt.
2200
2201#
2202# PCI-based Watchdog Cards
2203#
2204
2205comment "PCI-based Watchdog Cards"
2206	depends on PCI
2207
2208config PCIPCWATCHDOG
2209	tristate "Berkshire Products PCI-PC Watchdog"
2210	depends on PCI
2211	help
2212	  This is the driver for the Berkshire Products PCI-PC Watchdog card.
2213	  This card simply watches your kernel to make sure it doesn't freeze,
2214	  and if it does, it reboots your computer after a certain amount of
2215	  time. The card can also monitor the internal temperature of the PC.
2216	  More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2217
2218	  To compile this driver as a module, choose M here: the
2219	  module will be called pcwd_pci.
2220
2221	  Most people will say N.
2222
2223config WDTPCI
2224	tristate "PCI-WDT500/501 Watchdog timer"
2225	depends on PCI
2226	help
2227	  If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2228
2229	  If you have a PCI-WDT501 watchdog board then you can enable the
2230	  temperature sensor by setting the type parameter to 501.
2231
2232	  If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2233	  can do this via the tachometer parameter. Only do this if you have a
2234	  fan tachometer actually set up.
2235
2236	  To compile this driver as a module, choose M here: the
2237	  module will be called wdt_pci.
2238
2239#
2240# USB-based Watchdog Cards
2241#
2242
2243comment "USB-based Watchdog Cards"
2244	depends on USB
2245
2246config USBPCWATCHDOG
2247	tristate "Berkshire Products USB-PC Watchdog"
2248	depends on USB
2249	help
2250	  This is the driver for the Berkshire Products USB-PC Watchdog card.
2251	  This card simply watches your kernel to make sure it doesn't freeze,
2252	  and if it does, it reboots your computer after a certain amount of
2253	  time. The card can also monitor the internal temperature of the PC.
2254	  More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2255
2256	  To compile this driver as a module, choose M here: the
2257	  module will be called pcwd_usb.
2258
2259	  Most people will say N.
2260
2261config KEEMBAY_WATCHDOG
2262	tristate "Intel Keem Bay SoC non-secure watchdog"
2263	depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST)
2264	select WATCHDOG_CORE
2265	help
2266	  This option enable support for an In-secure watchdog timer driver for
2267	  Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every
2268	  count unit. An interrupt will be triggered, when the count crosses
2269	  the threshold configured in the register.
2270
2271	  To compile this driver as a module, choose M here: the
2272	  module will be called keembay_wdt.
2273
2274endif # WATCHDOG
2275