xref: /linux/drivers/watchdog/Kconfig (revision 7255fcc80d4b525cc10cfaaf7f485830d4ed2000)
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 MENF21BMC_WATCHDOG
258	tristate "MEN 14F021P00 BMC Watchdog"
259	depends on MFD_MENF21BMC || COMPILE_TEST
260	depends on I2C
261	select WATCHDOG_CORE
262	help
263	  Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
264
265	  This driver can also be built as a module. If so the module
266	  will be called menf21bmc_wdt.
267
268config MENZ069_WATCHDOG
269	tristate "MEN 16Z069 Watchdog"
270	depends on MCB
271	select WATCHDOG_CORE
272	help
273	  Say Y here to include support for the MEN 16Z069 Watchdog.
274
275	  This driver can also be built as a module. If so the module
276	  will be called menz069_wdt.
277
278config WDAT_WDT
279	tristate "ACPI Watchdog Action Table (WDAT)"
280	depends on ACPI
281	select WATCHDOG_CORE
282	select ACPI_WATCHDOG
283	help
284	  This driver adds support for systems with ACPI Watchdog Action
285	  Table (WDAT) table. Servers typically have this but it can be
286	  found on some desktop machines as well. This driver will take
287	  over the native iTCO watchdog driver found on many Intel CPUs.
288
289	  To compile this driver as module, choose M here: the module will
290	  be called wdat_wdt.
291
292config WM831X_WATCHDOG
293	tristate "WM831x watchdog"
294	depends on MFD_WM831X
295	select WATCHDOG_CORE
296	help
297	  Support for the watchdog in the WM831x AudioPlus PMICs.  When
298	  the watchdog triggers the system will be reset.
299
300config WM8350_WATCHDOG
301	tristate "WM8350 watchdog"
302	depends on MFD_WM8350
303	select WATCHDOG_CORE
304	help
305	  Support for the watchdog in the WM8350 AudioPlus PMIC.  When
306	  the watchdog triggers the system will be reset.
307
308config XILINX_WATCHDOG
309	tristate "Xilinx Watchdog timer"
310	depends on HAS_IOMEM
311	select WATCHDOG_CORE
312	help
313	  Watchdog driver for the xps_timebase_wdt IP core.
314
315	  To compile this driver as a module, choose M here: the
316	  module will be called of_xilinx_wdt.
317
318config XILINX_WINDOW_WATCHDOG
319	tristate "Xilinx window watchdog timer"
320	depends on HAS_IOMEM
321	depends on ARM64 || COMPILE_TEST
322	select WATCHDOG_CORE
323	help
324	  Window watchdog driver for the versal_wwdt IP core.
325	  Window watchdog timer(WWDT) contains closed(first) and
326	  open(second) window with 32 bit width. Write to the watchdog
327	  timer within predefined window periods of time. This means
328	  a period that is not too soon and a period that is not too
329	  late. The WWDT has to be restarted within the open window time.
330	  If software tries to restart WWDT outside of the open window
331	  time period, it generates a reset.
332
333	  To compile this driver as a module, choose M here: the
334	  module will be called xilinx_wwdt.
335
336config ZIIRAVE_WATCHDOG
337	tristate "Zodiac RAVE Watchdog Timer"
338	depends on I2C
339	select WATCHDOG_CORE
340	help
341	  Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
342	  Processor.
343
344	  To compile this driver as a module, choose M here: the
345	  module will be called ziirave_wdt.
346
347config RAVE_SP_WATCHDOG
348	tristate "RAVE SP Watchdog timer"
349	depends on RAVE_SP_CORE
350	depends on NVMEM || !NVMEM
351	select WATCHDOG_CORE
352	help
353	  Support for the watchdog on RAVE SP device.
354
355config MLX_WDT
356	tristate "Mellanox Watchdog"
357	depends on MELLANOX_PLATFORM || COMPILE_TEST
358	select WATCHDOG_CORE
359	select REGMAP
360	help
361	  This is the driver for the hardware watchdog on Mellanox systems.
362	  If you are going to use it, say Y here, otherwise N.
363	  This driver can be used together with the watchdog daemon.
364	  It can also watch your kernel to make sure it doesn't freeze,
365	  and if it does, it reboots your system after a certain amount of
366	  time.
367
368	  To compile this driver as a module, choose M here: the
369	  module will be called mlx-wdt.
370
371config SL28CPLD_WATCHDOG
372	tristate "Kontron sl28cpld Watchdog"
373	depends on MFD_SL28CPLD || COMPILE_TEST
374	select WATCHDOG_CORE
375	help
376	  Say Y here to include support for the watchdog timer
377	  on the Kontron sl28 CPLD.
378
379	  To compile this driver as a module, choose M here: the
380	  module will be called sl28cpld_wdt.
381
382# ALPHA Architecture
383
384# ARM Architecture
385
386config ARM_SP805_WATCHDOG
387	tristate "ARM SP805 Watchdog"
388	depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
389	select WATCHDOG_CORE
390	help
391	  ARM Primecell SP805 Watchdog timer. This will reboot your system when
392	  the timeout is reached.
393
394config ARM_SBSA_WATCHDOG
395	tristate "ARM SBSA Generic Watchdog"
396	depends on ARM64
397	depends on ARM_ARCH_TIMER
398	select WATCHDOG_CORE
399	help
400	  ARM SBSA Generic Watchdog has two stage timeouts:
401	  the first signal (WS0) is for alerting the system by interrupt,
402	  the second one (WS1) is a real hardware reset.
403	  More details: ARM DEN0029B - Server Base System Architecture (SBSA)
404
405	  This driver can operate ARM SBSA Generic Watchdog as a single stage
406	  or a two stages watchdog, it depends on the module parameter "action".
407
408	  Note: the maximum timeout in the two stages mode is half of that in
409	  the single stage mode.
410
411	  To compile this driver as module, choose M here: The module
412	  will be called sbsa_gwdt.
413
414config ARMADA_37XX_WATCHDOG
415	tristate "Armada 37xx watchdog"
416	depends on ARCH_MVEBU || COMPILE_TEST
417	depends on HAS_IOMEM
418	select MFD_SYSCON
419	select WATCHDOG_CORE
420	help
421	   Say Y here to include support for the watchdog timer found on
422	   Marvell Armada 37xx SoCs.
423	   To compile this driver as a module, choose M here: the
424	   module will be called armada_37xx_wdt.
425
426config ASM9260_WATCHDOG
427	tristate "Alphascale ASM9260 watchdog"
428	depends on MACH_ASM9260 || COMPILE_TEST
429	depends on OF
430	select WATCHDOG_CORE
431	select RESET_CONTROLLER
432	help
433	  Watchdog timer embedded into Alphascale asm9260 chips. This will
434	  reboot your system when the timeout is reached.
435
436config AT91RM9200_WATCHDOG
437	tristate "AT91RM9200 watchdog"
438	depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
439	help
440	  Watchdog timer embedded into AT91RM9200 chips. This will reboot your
441	  system when the timeout is reached.
442
443config AT91SAM9X_WATCHDOG
444	tristate "AT91SAM9X / AT91CAP9 watchdog"
445	depends on ARCH_AT91 || COMPILE_TEST
446	select WATCHDOG_CORE
447	help
448	  Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
449	  reboot your system when the timeout is reached.
450
451config SAMA5D4_WATCHDOG
452	tristate "Atmel SAMA5D4 Watchdog Timer"
453	depends on ARCH_AT91 || COMPILE_TEST
454	select WATCHDOG_CORE
455	help
456	  Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
457	  Its Watchdog Timer Mode Register can be written more than once.
458	  This will reboot your system when the timeout is reached.
459
460config CADENCE_WATCHDOG
461	tristate "Cadence Watchdog Timer"
462	depends on HAS_IOMEM
463	select WATCHDOG_CORE
464	help
465	  Say Y here if you want to include support for the watchdog
466	  timer in the Xilinx Zynq.
467
468config 21285_WATCHDOG
469	tristate "DC21285 watchdog"
470	depends on FOOTBRIDGE
471	help
472	  The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
473	  here if you wish to use this. Alternatively say M to compile the
474	  driver as a module, which will be called wdt285.
475
476	  This driver does not work on all machines. In particular, early CATS
477	  boards have hardware problems that will cause the machine to simply
478	  lock up if the watchdog fires.
479
480	  "If in doubt, leave it out" - say N.
481
482config 977_WATCHDOG
483	tristate "NetWinder WB83C977 watchdog"
484	depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
485	help
486	  Say Y here to include support for the WB977 watchdog included in
487	  NetWinder machines. Alternatively say M to compile the driver as
488	  a module, which will be called wdt977.
489
490	  Not sure? It's safe to say N.
491
492config FTWDT010_WATCHDOG
493	tristate "Faraday Technology FTWDT010 watchdog"
494	depends on ARM || COMPILE_TEST
495	select WATCHDOG_CORE
496	default ARCH_GEMINI
497	help
498	  Say Y here if to include support for the Faraday Technology
499	  FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
500	  family of devices.
501
502	  To compile this driver as a module, choose M here: the
503	  module will be called ftwdt010_wdt.
504
505config IXP4XX_WATCHDOG
506	tristate "IXP4xx Watchdog"
507	depends on ARCH_IXP4XX || (ARM && COMPILE_TEST)
508	select WATCHDOG_CORE
509	help
510	  Say Y here if to include support for the watchdog timer
511	  in the Intel IXP4xx network processors. This driver can
512	  be built as a module by choosing M. The module will
513	  be called ixp4xx_wdt.
514
515	  Note: The internal IXP4xx watchdog does a soft CPU reset
516	  which doesn't reset any peripherals. There are circumstances
517	  where the watchdog will fail to reset the board correctly
518	  (e.g., if the boot ROM is in an unreadable state).
519
520	  Say N if you are unsure.
521
522config S3C2410_WATCHDOG
523	tristate "S3C6410/S5Pv210/Exynos Watchdog"
524	depends on ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
525	select WATCHDOG_CORE
526	help
527	  Watchdog timer block in the Samsung S3C64xx, S5Pv210 and Exynos
528	  SoCs. This will reboot the system when the timer expires with
529	  the watchdog enabled.
530
531	  The driver is limited by the speed of the system's PCLK
532	  signal, so with reasonably fast systems (PCLK around 50-66MHz)
533	  then watchdog intervals of over approximately 20seconds are
534	  unavailable.
535
536	  Choose Y/M here only if you build for such Samsung SoC.
537	  The driver can be built as a module by choosing M, and will
538	  be called s3c2410_wdt.
539
540config SA1100_WATCHDOG
541	tristate "SA1100/PXA2xx watchdog"
542	depends on ARCH_SA1100 || ARCH_PXA || COMPILE_TEST
543	help
544	  Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
545	  reboot your system when timeout is reached.
546
547	  NOTE: once enabled, this timer cannot be disabled.
548
549	  To compile this driver as a module, choose M here: the
550	  module will be called sa1100_wdt.
551
552config DW_WATCHDOG
553	tristate "Synopsys DesignWare watchdog"
554	depends on HAS_IOMEM
555	select WATCHDOG_CORE
556	help
557	  Say Y here if to include support for the Synopsys DesignWare
558	  watchdog timer found in many chips.
559	  To compile this driver as a module, choose M here: the
560	  module will be called dw_wdt.
561
562config EP93XX_WATCHDOG
563	tristate "EP93xx Watchdog"
564	depends on ARCH_EP93XX || COMPILE_TEST
565	select WATCHDOG_CORE
566	help
567	  Say Y here if to include support for the watchdog timer
568	  embedded in the Cirrus Logic EP93xx family of devices.
569
570	  To compile this driver as a module, choose M here: the
571	  module will be called ep93xx_wdt.
572
573config OMAP_WATCHDOG
574	tristate "OMAP Watchdog"
575	depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
576	select WATCHDOG_CORE
577	help
578	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.
579	  Say 'Y' here to enable the
580	  OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
581
582config PNX4008_WATCHDOG
583	tristate "LPC32XX Watchdog"
584	depends on ARCH_LPC32XX || COMPILE_TEST
585	select WATCHDOG_CORE
586	help
587	  Say Y here if to include support for the watchdog timer
588	  in the LPC32XX processor.
589	  This driver can be built as a module by choosing M. The module
590	  will be called pnx4008_wdt.
591
592	  Say N if you are unsure.
593
594config DAVINCI_WATCHDOG
595	tristate "DaVinci watchdog"
596	depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
597	select WATCHDOG_CORE
598	help
599	  Say Y here if to include support for the watchdog timer
600	  in the DaVinci DM644x/DM646x or Keystone processors.
601	  To compile this driver as a module, choose M here: the
602	  module will be called davinci_wdt.
603
604	  NOTE: once enabled, this timer cannot be disabled.
605	  Say N if you are unsure.
606
607config K3_RTI_WATCHDOG
608	tristate "Texas Instruments K3 RTI watchdog"
609	depends on ARCH_K3 || COMPILE_TEST
610	select WATCHDOG_CORE
611	help
612	  Say Y here if you want to include support for the K3 watchdog
613	  timer (RTI module) available in the K3 generation of processors.
614
615config ORION_WATCHDOG
616	tristate "Orion watchdog"
617	depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST
618	depends on ARM
619	select WATCHDOG_CORE
620	help
621	  Say Y here if to include support for the watchdog timer
622	  in the Marvell Orion5x and Kirkwood ARM SoCs.
623	  To compile this driver as a module, choose M here: the
624	  module will be called orion_wdt.
625
626config RN5T618_WATCHDOG
627	tristate "Ricoh RN5T618 watchdog"
628	depends on MFD_RN5T618 || COMPILE_TEST
629	select WATCHDOG_CORE
630	help
631	  If you say yes here you get support for watchdog on the Ricoh
632	  RN5T618 PMIC.
633
634	  This driver can also be built as a module.  If so, the module
635	  will be called rn5t618_wdt.
636
637config SUNXI_WATCHDOG
638	tristate "Allwinner SoCs watchdog support"
639	depends on ARCH_SUNXI || COMPILE_TEST
640	select WATCHDOG_CORE
641	help
642	  Say Y here to include support for the watchdog timer
643	  in Allwinner SoCs.
644	  To compile this driver as a module, choose M here: the
645	  module will be called sunxi_wdt.
646
647config NPCM7XX_WATCHDOG
648	tristate "Nuvoton NPCM750 watchdog"
649	depends on ARCH_NPCM || COMPILE_TEST
650	default y if ARCH_NPCM7XX
651	select WATCHDOG_CORE
652	help
653	  Say Y here to include Watchdog timer support for the
654	  watchdog embedded into the NPCM7xx.
655	  This watchdog is used to reset the system and thus cannot be
656	  compiled as a module.
657
658config TWL4030_WATCHDOG
659	tristate "TWL4030 Watchdog"
660	depends on TWL4030_CORE
661	select WATCHDOG_CORE
662	help
663	  Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
664	  watchdog timer support for TWL4030 chips.
665
666config STMP3XXX_RTC_WATCHDOG
667	tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
668	depends on RTC_DRV_STMP || COMPILE_TEST
669	select WATCHDOG_CORE
670	help
671	  Say Y here to include support for the watchdog timer inside
672	  the RTC for the STMP37XX/378X or i.MX23/28 SoC.
673	  To compile this driver as a module, choose M here: the
674	  module will be called stmp3xxx_rtc_wdt.
675
676config TS4800_WATCHDOG
677	tristate "TS-4800 Watchdog"
678	depends on HAS_IOMEM && OF
679	depends on SOC_IMX51 || COMPILE_TEST
680	select WATCHDOG_CORE
681	select MFD_SYSCON
682	help
683	  Technologic Systems TS-4800 has watchdog timer implemented in
684	  an external FPGA. Say Y here if you want to support for the
685	  watchdog timer on TS-4800 board.
686
687config TS72XX_WATCHDOG
688	tristate "TS-72XX SBC Watchdog"
689	depends on MACH_TS72XX || COMPILE_TEST
690	select WATCHDOG_CORE
691	help
692	  Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
693	  watchdog timer implemented in a external CPLD chip. Say Y here
694	  if you want to support for the watchdog timer on TS-72XX boards.
695
696	  To compile this driver as a module, choose M here: the
697	  module will be called ts72xx_wdt.
698
699config MAX63XX_WATCHDOG
700	tristate "Max63xx watchdog"
701	depends on HAS_IOMEM
702	select WATCHDOG_CORE
703	help
704	  Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
705
706config MAX77620_WATCHDOG
707	tristate "Maxim Max77620 Watchdog Timer"
708	depends on MFD_MAX77620 || MFD_MAX77714 || COMPILE_TEST
709	select WATCHDOG_CORE
710	help
711	  This is the driver for the Max77620 watchdog timer.
712	  Say 'Y' here to enable the watchdog timer support for
713	  MAX77620 chips. To compile this driver as a module,
714	  choose M here: the module will be called max77620_wdt.
715
716config IMX2_WDT
717	tristate "IMX2+ Watchdog"
718	depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
719	select REGMAP_MMIO
720	select WATCHDOG_CORE
721	help
722	  This is the driver for the hardware watchdog
723	  on the Freescale IMX2 and later processors.
724	  If you have one of these processors and wish to have
725	  watchdog support enabled, say Y, otherwise say N.
726
727	  To compile this driver as a module, choose M here: the
728	  module will be called imx2_wdt.
729
730config IMX_SC_WDT
731	tristate "IMX SC Watchdog"
732	depends on HAVE_ARM_SMCCC
733	depends on IMX_SCU || COMPILE_TEST
734	select WATCHDOG_CORE
735	help
736	  This is the driver for the system controller watchdog
737	  on the NXP i.MX SoCs with system controller inside, the
738	  watchdog driver will call ARM SMC API and trap into
739	  ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
740	  will request system controller to execute the operations.
741	  If you have one of these processors and wish to have
742	  watchdog support enabled, say Y, otherwise say N.
743
744	  To compile this driver as a module, choose M here: the
745	  module will be called imx_sc_wdt.
746
747config IMX7ULP_WDT
748	tristate "IMX7ULP Watchdog"
749	depends on ARCH_MXC || COMPILE_TEST
750	select WATCHDOG_CORE
751	help
752	  This is the driver for the hardware watchdog on the Freescale
753	  IMX7ULP and later processors. If you have one of these
754	  processors and wish to have watchdog support enabled,
755	  say Y, otherwise say N.
756
757	  To compile this driver as a module, choose M here: the
758	  module will be called imx7ulp_wdt.
759
760config DB500_WATCHDOG
761	tristate "ST-Ericsson DB800 watchdog"
762	depends on MFD_DB8500_PRCMU
763	select WATCHDOG_CORE
764	default y
765	help
766	  Say Y here to include Watchdog timer support for the watchdog
767	  existing in the prcmu of ST-Ericsson DB8500 platform.
768
769	  To compile this driver as a module, choose M here: the
770	  module will be called db500_wdt.
771
772config RETU_WATCHDOG
773	tristate "Retu watchdog"
774	depends on MFD_RETU
775	select WATCHDOG_CORE
776	help
777	  Retu watchdog driver for Nokia Internet Tablets (770, N800,
778	  N810). At least on N800 the watchdog cannot be disabled, so
779	  this driver is essential and you should enable it.
780
781	  To compile this driver as a module, choose M here: the
782	  module will be called retu_wdt.
783
784config MOXART_WDT
785	tristate "MOXART watchdog"
786	depends on ARCH_MOXART || COMPILE_TEST
787	help
788	  Say Y here to include Watchdog timer support for the watchdog
789	  existing on the MOXA ART SoC series platforms.
790
791	  To compile this driver as a module, choose M here: the
792	  module will be called moxart_wdt.
793
794config ST_LPC_WATCHDOG
795	tristate "STMicroelectronics LPC Watchdog"
796	depends on ARCH_STI || COMPILE_TEST
797	depends on OF
798	select WATCHDOG_CORE
799	help
800	  Say Y here to include STMicroelectronics Low Power Controller
801	  (LPC) based Watchdog timer support.
802
803	  To compile this driver as a module, choose M here: the
804	  module will be called st_lpc_wdt.
805
806config TEGRA_WATCHDOG
807	tristate "Tegra watchdog"
808	depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
809	select WATCHDOG_CORE
810	help
811	  Say Y here to include support for the watchdog timer
812	  embedded in NVIDIA Tegra SoCs.
813
814	  To compile this driver as a module, choose M here: the
815	  module will be called tegra_wdt.
816
817config QCOM_WDT
818	tristate "QCOM watchdog"
819	depends on HAS_IOMEM
820	depends on ARCH_QCOM || COMPILE_TEST
821	select WATCHDOG_CORE
822	help
823	  Say Y here to include Watchdog timer support for the watchdog found
824	  on QCOM chipsets.  Currently supported targets are the MSM8960,
825	  APQ8064, and IPQ8064.
826
827	  To compile this driver as a module, choose M here: the
828	  module will be called qcom_wdt.
829
830config MESON_GXBB_WATCHDOG
831	tristate "Amlogic Meson GXBB SoCs watchdog support"
832	depends on ARCH_MESON || COMPILE_TEST
833	select WATCHDOG_CORE
834	help
835	  Say Y here to include support for the watchdog timer
836	  in Amlogic Meson GXBB SoCs.
837	  To compile this driver as a module, choose M here: the
838	  module will be called meson_gxbb_wdt.
839
840config MESON_WATCHDOG
841	tristate "Amlogic Meson 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 SoCs.
847	  To compile this driver as a module, choose M here: the
848	  module will be called meson_wdt.
849
850config MEDIATEK_WATCHDOG
851	tristate "Mediatek SoCs watchdog support"
852	depends on ARCH_MEDIATEK || COMPILE_TEST
853	default ARCH_MEDIATEK
854	select WATCHDOG_CORE
855	select RESET_CONTROLLER
856	help
857	  Say Y here to include support for the watchdog timer
858	  in Mediatek SoCs.
859	  To compile this driver as a module, choose M here: the
860	  module will be called mtk_wdt.
861
862config DIGICOLOR_WATCHDOG
863	tristate "Conexant Digicolor SoCs watchdog support"
864	depends on ARCH_DIGICOLOR || COMPILE_TEST
865	select WATCHDOG_CORE
866	help
867	  Say Y here to include support for the watchdog timer
868	  in Conexant Digicolor SoCs.
869	  To compile this driver as a module, choose M here: the
870	  module will be called digicolor_wdt.
871
872config ARM_SMC_WATCHDOG
873	tristate "ARM Secure Monitor Call based watchdog support"
874	depends on ARM || ARM64
875	depends on OF
876	depends on HAVE_ARM_SMCCC
877	select WATCHDOG_CORE
878	help
879	  Say Y here to include support for a watchdog timer
880	  implemented by the EL3 Secure Monitor on ARM platforms.
881	  Requires firmware support.
882	  To compile this driver as a module, choose M here: the
883	  module will be called arm_smc_wdt.
884
885config LPC18XX_WATCHDOG
886	tristate "LPC18xx/43xx Watchdog"
887	depends on ARCH_LPC18XX || COMPILE_TEST
888	depends on HAS_IOMEM
889	select WATCHDOG_CORE
890	help
891	  Say Y here if to include support for the watchdog timer
892	  in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
893	  processors.
894	  To compile this driver as a module, choose M here: the
895	  module will be called lpc18xx_wdt.
896
897config RENESAS_WDT
898	tristate "Renesas WDT Watchdog"
899	depends on ARCH_RENESAS || COMPILE_TEST
900	select WATCHDOG_CORE
901	help
902	  This driver adds watchdog support for the integrated watchdogs in the
903	  Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
904
905config RENESAS_RZAWDT
906	tristate "Renesas RZ/A WDT Watchdog"
907	depends on ARCH_RENESAS || COMPILE_TEST
908	select WATCHDOG_CORE
909	help
910	  This driver adds watchdog support for the integrated watchdogs in the
911	  Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
912
913config RENESAS_RZN1WDT
914	tristate "Renesas RZ/N1 watchdog"
915	depends on ARCH_RENESAS || COMPILE_TEST
916	select WATCHDOG_CORE
917	help
918	  This driver adds watchdog support for the integrated watchdogs in the
919	  Renesas RZ/N1 SoCs. These watchdogs can be used to reset a system.
920
921config RENESAS_RZG2LWDT
922	tristate "Renesas RZ/G2L WDT Watchdog"
923	depends on ARCH_RENESAS || COMPILE_TEST
924	select WATCHDOG_CORE
925	help
926	  This driver adds watchdog support for the integrated watchdogs in the
927	  Renesas RZ/G2L SoCs. These watchdogs can be used to reset a system.
928
929config ASPEED_WATCHDOG
930	tristate "Aspeed BMC watchdog support"
931	depends on ARCH_ASPEED || COMPILE_TEST
932	select WATCHDOG_CORE
933	help
934	  Say Y here to include support for the watchdog timer
935	  in Aspeed BMC SoCs.
936
937	  This driver is required to reboot the SoC.
938
939	  To compile this driver as a module, choose M here: the
940	  module will be called aspeed_wdt.
941
942config STM32_WATCHDOG
943	tristate "STM32 Independent WatchDoG (IWDG) support"
944	depends on ARCH_STM32 || COMPILE_TEST
945	select WATCHDOG_CORE
946	default y
947	help
948	  Say Y here to include support for the watchdog timer
949	  in stm32 SoCs.
950
951	  To compile this driver as a module, choose M here: the
952	  module will be called stm32_iwdg.
953
954config STPMIC1_WATCHDOG
955	tristate "STPMIC1 PMIC watchdog support"
956	depends on MFD_STPMIC1
957	select WATCHDOG_CORE
958	help
959	  Say Y here to include watchdog support embedded into STPMIC1 PMIC.
960	  If the watchdog timer expires, stpmic1 will shut down all its power
961	  supplies.
962
963	  To compile this driver as a module, choose M here: the
964	  module will be called spmic1_wdt.
965
966config UNIPHIER_WATCHDOG
967	tristate "UniPhier watchdog support"
968	depends on ARCH_UNIPHIER || COMPILE_TEST
969	depends on OF && MFD_SYSCON
970	select WATCHDOG_CORE
971	help
972	  Say Y here to include support watchdog timer embedded
973	  into the UniPhier system.
974
975	  To compile this driver as a module, choose M here: the
976	  module will be called uniphier_wdt.
977
978config RTD119X_WATCHDOG
979	bool "Realtek RTD119x/RTD129x watchdog support"
980	depends on ARCH_REALTEK || COMPILE_TEST
981	depends on OF
982	select WATCHDOG_CORE
983	default ARCH_REALTEK
984	help
985	  Say Y here to include support for the watchdog timer in
986	  Realtek RTD1295 SoCs.
987
988config REALTEK_OTTO_WDT
989	tristate "Realtek Otto MIPS watchdog support"
990	depends on MACH_REALTEK_RTL || COMPILE_TEST
991	depends on COMMON_CLK
992	select WATCHDOG_CORE
993	default MACH_REALTEK_RTL
994	help
995	  Say Y here to include support for the watchdog timer on Realtek
996	  RTL838x, RTL839x, RTL930x SoCs. This watchdog has pretimeout
997	  notifications and system reset on timeout.
998
999	  When built as a module this will be called realtek_otto_wdt.
1000
1001config SPRD_WATCHDOG
1002	tristate "Spreadtrum watchdog support"
1003	depends on ARCH_SPRD || COMPILE_TEST
1004	select WATCHDOG_CORE
1005	help
1006	  Say Y here to include watchdog timer supported
1007	  by Spreadtrum system.
1008
1009config PM8916_WATCHDOG
1010	tristate "QCOM PM8916 pmic watchdog"
1011	depends on OF && MFD_SPMI_PMIC
1012	select WATCHDOG_CORE
1013	help
1014	  Say Y here to include support watchdog timer embedded into the
1015	  pm8916 module.
1016
1017config VISCONTI_WATCHDOG
1018	tristate "Toshiba Visconti series watchdog support"
1019	depends on ARCH_VISCONTI || COMPILE_TEST
1020	select WATCHDOG_CORE
1021	help
1022	  Say Y here to include support for the watchdog timer in Toshiba
1023	  Visconti SoCs.
1024
1025config MSC313E_WATCHDOG
1026	tristate "MStar MSC313e watchdog"
1027	depends on ARCH_MSTARV7 || COMPILE_TEST
1028	select WATCHDOG_CORE
1029	help
1030	  Say Y here to include support for the Watchdog timer embedded
1031	  into MStar MSC313e chips. This will reboot your system when the
1032	  timeout is reached.
1033
1034	  To compile this driver as a module, choose M here: the
1035	  module will be called msc313e_wdt.
1036
1037config APPLE_WATCHDOG
1038	tristate "Apple SoC watchdog"
1039	depends on ARCH_APPLE || COMPILE_TEST
1040	select WATCHDOG_CORE
1041	help
1042	  Say Y here to include support for the Watchdog found in Apple
1043	  SoCs such as the M1. Next to the common watchdog features this
1044	  driver is also required in order to reboot these SoCs.
1045
1046	  To compile this driver as a module, choose M here: the
1047	  module will be called apple_wdt.
1048
1049config SUNPLUS_WATCHDOG
1050	tristate "Sunplus watchdog support"
1051	depends on ARCH_SUNPLUS || COMPILE_TEST
1052	select WATCHDOG_CORE
1053	help
1054	  Say Y here to include support for the watchdog timer
1055	  in Sunplus SoCs.
1056
1057	  To compile this driver as a module, choose M here: the
1058	  module will be called sunplus_wdt.
1059
1060# X86 (i386 + ia64 + x86_64) Architecture
1061
1062config ACQUIRE_WDT
1063	tristate "Acquire SBC Watchdog Timer"
1064	depends on X86
1065	help
1066	  This is the driver for the hardware watchdog on Single Board
1067	  Computers produced by Acquire Inc (and others). This watchdog
1068	  simply watches your kernel to make sure it doesn't freeze, and if
1069	  it does, it reboots your computer after a certain amount of time.
1070
1071	  To compile this driver as a module, choose M here: the
1072	  module will be called acquirewdt.
1073
1074	  Most people will say N.
1075
1076config ADVANTECH_WDT
1077	tristate "Advantech SBC Watchdog Timer"
1078	depends on X86 || COMPILE_TEST
1079	help
1080	  If you are configuring a Linux kernel for the Advantech single-board
1081	  computer, say `Y' here to support its built-in watchdog timer
1082	  feature. More information can be found at
1083	  <https://www.advantech.com.tw/products/>
1084
1085config ADVANTECH_EC_WDT
1086	tristate "Advantech Embedded Controller Watchdog Timer"
1087	depends on X86 || COMPILE_TEST
1088	select ISA_BUS_API
1089	select WATCHDOG_CORE
1090	help
1091		This driver supports Advantech products with ITE based Embedded Controller.
1092		It does not support Advantech products with other ECs or without EC.
1093
1094config ALIM1535_WDT
1095	tristate "ALi M1535 PMU Watchdog Timer"
1096	depends on (X86 || COMPILE_TEST) && PCI
1097	help
1098	  This is the driver for the hardware watchdog on the ALi M1535 PMU.
1099
1100	  To compile this driver as a module, choose M here: the
1101	  module will be called alim1535_wdt.
1102
1103	  Most people will say N.
1104
1105config ALIM7101_WDT
1106	tristate "ALi M7101 PMU Computer Watchdog"
1107	depends on PCI
1108	help
1109	  This is the driver for the hardware watchdog on the ALi M7101 PMU
1110	  as used in the x86 Cobalt servers and also found in some
1111	  SPARC Netra servers too.
1112
1113	  To compile this driver as a module, choose M here: the
1114	  module will be called alim7101_wdt.
1115
1116	  Most people will say N.
1117
1118config EBC_C384_WDT
1119	tristate "WinSystems EBC-C384 Watchdog Timer"
1120	depends on X86 || COMPILE_TEST
1121	select ISA_BUS_API
1122	select WATCHDOG_CORE
1123	help
1124	  Enables watchdog timer support for the watchdog timer on the
1125	  WinSystems EBC-C384 motherboard. The timeout may be configured via
1126	  the timeout module parameter.
1127
1128config EXAR_WDT
1129	tristate "Exar Watchdog Timer"
1130	depends on X86 || COMPILE_TEST
1131	select WATCHDOG_CORE
1132	help
1133	  Enables watchdog timer support for the watchdog timer present
1134	  in some Exar/MaxLinear UART chips like the XR28V38x.
1135
1136	  To compile this driver as a module, choose M here: the
1137	  module will be called exar_wdt.
1138
1139config F71808E_WDT
1140	tristate "Fintek F718xx, F818xx Super I/O Watchdog"
1141	depends on X86 || COMPILE_TEST
1142	select WATCHDOG_CORE
1143	help
1144	  This is the driver for the hardware watchdog on the Fintek F71808E,
1145	  F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and
1146	  F81866 Super I/O controllers.
1147
1148	  You can compile this driver directly into the kernel, or use
1149	  it as a module.  The module will be called f71808e_wdt.
1150
1151config SP5100_TCO
1152	tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
1153	depends on (X86 || COMPILE_TEST) && PCI
1154	select WATCHDOG_CORE
1155	help
1156	  Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
1157	  (Total Cost of Ownership) timer is a watchdog timer that will reboot
1158	  the machine after its expiration. The expiration time can be
1159	  configured with the "heartbeat" parameter.
1160
1161	  To compile this driver as a module, choose M here: the
1162	  module will be called sp5100_tco.
1163
1164config GEODE_WDT
1165	tristate "AMD Geode CS5535/CS5536 Watchdog"
1166	depends on CS5535_MFGPT
1167	help
1168	  This driver enables a watchdog capability built into the
1169	  CS5535/CS5536 companion chips for the AMD Geode GX and LX
1170	  processors.  This watchdog watches your kernel to make sure
1171	  it doesn't freeze, and if it does, it reboots your computer after
1172	  a certain amount of time.
1173
1174	  You can compile this driver directly into the kernel, or use
1175	  it as a module.  The module will be called geodewdt.
1176
1177config SC520_WDT
1178	tristate "AMD Elan SC520 processor Watchdog"
1179	depends on MELAN || COMPILE_TEST
1180	help
1181	  This is the driver for the hardware watchdog built in to the
1182	  AMD "Elan" SC520 microcomputer commonly used in embedded systems.
1183	  This watchdog simply watches your kernel to make sure it doesn't
1184	  freeze, and if it does, it reboots your computer after a certain
1185	  amount of time.
1186
1187	  You can compile this driver directly into the kernel, or use
1188	  it as a module.  The module will be called sc520_wdt.
1189
1190config SBC_FITPC2_WATCHDOG
1191	tristate "Compulab SBC-FITPC2 watchdog"
1192	depends on X86 || COMPILE_TEST
1193	help
1194	  This is the driver for the built-in watchdog timer on the fit-PC2,
1195	  fit-PC2i, CM-iAM single-board computers made by Compulab.
1196
1197	  It's possible to enable the watchdog timer either from BIOS (F2) or
1198	  from booted Linux.
1199	  When the "Watchdog Timer Value" is enabled one can set 31-255 seconds
1200	  operational range.
1201
1202	  Entering BIOS setup temporarily disables watchdog operation regardless
1203	  of current state, so system will not be restarted while user is in
1204	  BIOS setup.
1205
1206	  Once the watchdog is enabled the system will be restarted every
1207	  "Watchdog Timer Value" period, so to prevent it user can restart or
1208	  disable the watchdog.
1209
1210	  To compile this driver as a module, choose M here: the
1211	  module will be called sbc_fitpc2_wdt.
1212
1213	  Most people will say N.
1214
1215config EUROTECH_WDT
1216	tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1217	depends on X86 || COMPILE_TEST
1218	help
1219	  Enable support for the watchdog timer on the Eurotech CPU-1220 and
1220	  CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
1221	  information are at <http://www.eurotech.it/>.
1222
1223config IB700_WDT
1224	tristate "IB700 SBC Watchdog Timer"
1225	depends on X86 || COMPILE_TEST
1226	help
1227	  This is the driver for the hardware watchdog on the IB700 Single
1228	  Board Computer produced by TMC Technology (www.tmc-uk.com). This
1229	  watchdog simply watches your kernel to make sure it doesn't freeze,
1230	  and if it does, it reboots your computer after a certain amount of time.
1231
1232	  This driver is like the WDT501 driver but for slightly different
1233	  hardware.
1234
1235	  To compile this driver as a module, choose M here: the
1236	  module will be called ib700wdt.
1237
1238	  Most people will say N.
1239
1240config IBMASR
1241	tristate "IBM Automatic Server Restart"
1242	depends on X86 || COMPILE_TEST
1243	help
1244	  This is the driver for the IBM Automatic Server Restart watchdog
1245	  timer built-in into some eServer xSeries machines.
1246
1247	  To compile this driver as a module, choose M here: the
1248	  module will be called ibmasr.
1249
1250config WAFER_WDT
1251	tristate "ICP Single Board Computer Watchdog Timer"
1252	depends on X86 || COMPILE_TEST
1253	help
1254	  This is a driver for the hardware watchdog on the ICP Single
1255	  Board Computer. This driver is working on (at least) the following
1256	  IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1257
1258	  To compile this driver as a module, choose M here: the
1259	  module will be called wafer5823wdt.
1260
1261config I6300ESB_WDT
1262	tristate "Intel 6300ESB Timer/Watchdog"
1263	depends on PCI
1264	select WATCHDOG_CORE
1265	help
1266	  Hardware driver for the watchdog timer built into the Intel
1267	  6300ESB controller hub.
1268
1269	  To compile this driver as a module, choose M here: the
1270	  module will be called i6300esb.
1271
1272config IE6XX_WDT
1273	tristate "Intel Atom E6xx Watchdog"
1274	depends on (X86 || COMPILE_TEST) && PCI
1275	select WATCHDOG_CORE
1276	select MFD_CORE
1277	select LPC_SCH
1278	help
1279	  Hardware driver for the watchdog timer built into the Intel
1280	  Atom E6XX (TunnelCreek) processor.
1281
1282	  To compile this driver as a module, choose M here: the
1283	  module will be called ie6xx_wdt.
1284
1285config INTEL_MID_WATCHDOG
1286	tristate "Intel MID Watchdog Timer"
1287	depends on X86_INTEL_MID
1288	select WATCHDOG_CORE
1289	help
1290	  Watchdog timer driver built into the Intel SCU for Intel MID
1291	  Platforms.
1292
1293	  This driver currently supports only the watchdog evolution
1294	  implementation in SCU, available for Merrifield generation.
1295
1296	  To compile this driver as a module, choose M here.
1297
1298config ITCO_WDT
1299	tristate "Intel TCO Timer/Watchdog"
1300	depends on X86 && PCI
1301	select WATCHDOG_CORE
1302	depends on I2C || I2C=n
1303	depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT
1304	select LPC_ICH if !EXPERT
1305	select I2C_I801 if !EXPERT && I2C
1306	help
1307	  Hardware driver for the intel TCO timer based watchdog devices.
1308	  These drivers are included in the Intel 82801 I/O Controller
1309	  Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1310	  controller hub.
1311
1312	  The TCO (Total Cost of Ownership) timer is a watchdog timer
1313	  that will reboot the machine after its second expiration. The
1314	  expiration time can be configured with the "heartbeat" parameter.
1315
1316	  On some motherboards the driver may fail to reset the chipset's
1317	  NO_REBOOT flag which prevents the watchdog from rebooting the
1318	  machine. If this is the case you will get a kernel message like
1319	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1320
1321	  To compile this driver as a module, choose M here: the
1322	  module will be called iTCO_wdt.
1323
1324config ITCO_VENDOR_SUPPORT
1325	bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1326	depends on ITCO_WDT
1327	help
1328	  Add vendor specific support to the intel TCO timer based watchdog
1329	  devices. At this moment we only have additional support for some
1330	  SuperMicro Inc. motherboards.
1331
1332config IT8712F_WDT
1333	tristate "IT8712F (Smart Guardian) Watchdog Timer"
1334	depends on X86 || COMPILE_TEST
1335	help
1336	  This is the driver for the built-in watchdog timer on the IT8712F
1337	  Super I/0 chipset used on many motherboards.
1338
1339	  If the driver does not work, then make sure that the game port in
1340	  the BIOS is enabled.
1341
1342	  To compile this driver as a module, choose M here: the
1343	  module will be called it8712f_wdt.
1344
1345config IT87_WDT
1346	tristate "IT87 Watchdog Timer"
1347	depends on X86 || COMPILE_TEST
1348	select WATCHDOG_CORE
1349	help
1350	  This is the driver for the hardware watchdog on the ITE IT8607,
1351	  IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1352	  IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1353	  IT8783 Super I/O chips.
1354
1355	  This watchdog simply watches your kernel to make sure it doesn't
1356	  freeze, and if it does, it reboots your computer after a certain
1357	  amount of time.
1358
1359	  To compile this driver as a module, choose M here: the module will
1360	  be called it87_wdt.
1361
1362config HP_WATCHDOG
1363	tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1364	select WATCHDOG_CORE
1365	depends on (ARM64 || X86 || COMPILE_TEST) && PCI
1366	help
1367	  A software monitoring watchdog and NMI handling driver. This driver
1368	  will detect lockups and provide a stack trace. This is a driver that
1369	  will only load on an HP ProLiant system with a minimum of iLO2 support.
1370	  To compile this driver as a module, choose M here: the module will be
1371	  called hpwdt.
1372
1373config HPWDT_NMI_DECODING
1374	bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1375	depends on X86 && HP_WATCHDOG
1376	default y
1377	help
1378	  Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1379	  "Generate NMI to System" virtual button.  When an NMI is claimed
1380	  by the driver, panic is called.
1381
1382config KEMPLD_WDT
1383	tristate "Kontron COM Watchdog Timer"
1384	depends on MFD_KEMPLD
1385	select WATCHDOG_CORE
1386	help
1387	  Support for the PLD watchdog on some Kontron ETX and COMexpress
1388	  (ETXexpress) modules
1389
1390	  This driver can also be built as a module. If so, the module will be
1391	  called kempld_wdt.
1392
1393config SC1200_WDT
1394	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1395	depends on X86 || COMPILE_TEST
1396	help
1397	  This is a driver for National Semiconductor PC87307/PC97307 hardware
1398	  watchdog cards as found on the SC1200. This watchdog is mainly used
1399	  for power management purposes and can be used to power down the device
1400	  during inactivity periods (includes interrupt activity monitoring).
1401
1402	  To compile this driver as a module, choose M here: the
1403	  module will be called sc1200wdt.
1404
1405	  Most people will say N.
1406
1407config SCx200_WDT
1408	tristate "National Semiconductor SCx200 Watchdog"
1409	depends on SCx200 && PCI
1410	help
1411	  Enable the built-in watchdog timer support on the National
1412	  Semiconductor SCx200 processors.
1413
1414	  If compiled as a module, it will be called scx200_wdt.
1415
1416config PC87413_WDT
1417	tristate "NS PC87413 watchdog"
1418	depends on X86 || COMPILE_TEST
1419	help
1420	  This is the driver for the hardware watchdog on the PC87413 chipset
1421	  This watchdog simply watches your kernel to make sure it doesn't
1422	  freeze, and if it does, it reboots your computer after a certain
1423	  amount of time.
1424
1425	  To compile this driver as a module, choose M here: the
1426	  module will be called pc87413_wdt.
1427
1428	  Most people will say N.
1429
1430config NV_TCO
1431	tristate "nVidia TCO Timer/Watchdog"
1432	depends on (X86 || COMPILE_TEST) && PCI
1433	help
1434	  Hardware driver for the TCO timer built into the nVidia Hub family
1435	  (such as the MCP51).  The TCO (Total Cost of Ownership) timer is a
1436	  watchdog timer that will reboot the machine after its second
1437	  expiration. The expiration time can be configured with the
1438	  "heartbeat" parameter.
1439
1440	  On some motherboards the driver may fail to reset the chipset's
1441	  NO_REBOOT flag which prevents the watchdog from rebooting the
1442	  machine. If this is the case you will get a kernel message like
1443	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1444
1445	  To compile this driver as a module, choose M here: the
1446	  module will be called nv_tco.
1447
1448config RDC321X_WDT
1449	tristate "RDC R-321x SoC watchdog"
1450	depends on X86_RDC321X || COMPILE_TEST
1451	depends on PCI
1452	help
1453	  This is the driver for the built in hardware watchdog
1454	  in the RDC R-321x SoC.
1455
1456	  To compile this driver as a module, choose M here: the
1457	  module will be called rdc321x_wdt.
1458
1459config 60XX_WDT
1460	tristate "SBC-60XX Watchdog Timer"
1461	depends on X86 || COMPILE_TEST
1462	help
1463	  This driver can be used with the watchdog timer found on some
1464	  single board computers, namely the 6010 PII based computer.
1465	  It may well work with other cards.  It reads port 0x443 to enable
1466	  and re-set the watchdog timer, and reads port 0x45 to disable
1467	  the watchdog.  If you have a card that behave in similar ways,
1468	  you can probably make this driver work with your card as well.
1469
1470	  You can compile this driver directly into the kernel, or use
1471	  it as a module.  The module will be called sbc60xxwdt.
1472
1473config SBC8360_WDT
1474	tristate "SBC8360 Watchdog Timer"
1475	depends on X86_32
1476	help
1477
1478	  This is the driver for the hardware watchdog on the SBC8360 Single
1479	  Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1480
1481	  To compile this driver as a module, choose M here: the
1482	  module will be called sbc8360.
1483
1484	  Most people will say N.
1485
1486config SBC7240_WDT
1487	tristate "SBC Nano 7240 Watchdog Timer"
1488	depends on X86_32 && !UML
1489	help
1490	  This is the driver for the hardware watchdog found on the IEI
1491	  single board computers EPIC Nano 7240 (and likely others). This
1492	  watchdog simply watches your kernel to make sure it doesn't freeze,
1493	  and if it does, it reboots your computer after a certain amount of
1494	  time.
1495
1496	  To compile this driver as a module, choose M here: the
1497	  module will be called sbc7240_wdt.
1498
1499config CPU5_WDT
1500	tristate "SMA CPU5 Watchdog"
1501	depends on X86 || COMPILE_TEST
1502	help
1503	  TBD.
1504	  To compile this driver as a module, choose M here: the
1505	  module will be called cpu5wdt.
1506
1507config SMSC_SCH311X_WDT
1508	tristate "SMSC SCH311X Watchdog Timer"
1509	depends on X86 || COMPILE_TEST
1510	help
1511	  This is the driver for the hardware watchdog timer on the
1512	  SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1513	  (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1514	  serial ports).
1515
1516	  To compile this driver as a module, choose M here: the
1517	  module will be called sch311x_wdt.
1518
1519config SMSC37B787_WDT
1520	tristate "Winbond SMsC37B787 Watchdog Timer"
1521	depends on X86 || COMPILE_TEST
1522	help
1523	  This is the driver for the hardware watchdog component on the
1524	  Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1525	  from Vision Systems and maybe others.
1526
1527	  This watchdog simply watches your kernel to make sure it doesn't
1528	  freeze, and if it does, it reboots your computer after a certain
1529	  amount of time.
1530
1531	  Usually a userspace daemon will notify the kernel WDT driver that
1532	  userspace is still alive, at regular intervals.
1533
1534	  To compile this driver as a module, choose M here: the
1535	  module will be called smsc37b787_wdt.
1536
1537	  Most people will say N.
1538
1539config TQMX86_WDT
1540	tristate "TQ-Systems TQMX86 Watchdog Timer"
1541	depends on X86 || COMPILE_TEST
1542	select WATCHDOG_CORE
1543	help
1544	  This is the driver for the hardware watchdog timer in the TQMX86 IO
1545	  controller found on some of their ComExpress Modules.
1546
1547	  To compile this driver as a module, choose M here; the module
1548	  will be called tqmx86_wdt.
1549
1550	  Most people will say N.
1551
1552config VIA_WDT
1553	tristate "VIA Watchdog Timer"
1554	depends on (X86 || COMPILE_TEST) && PCI
1555	select WATCHDOG_CORE
1556	help
1557	  This is the driver for the hardware watchdog timer on VIA
1558	  southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1559
1560	  To compile this driver as a module, choose M here; the module
1561	  will be called via_wdt.
1562
1563	  Most people will say N.
1564
1565config W83627HF_WDT
1566	tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1567	depends on X86 || COMPILE_TEST
1568	select WATCHDOG_CORE
1569	help
1570	  This is the driver for the hardware watchdog on the following
1571	  Super I/O chips.
1572		W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1573		W83637HF
1574		W83667HG/HG-B
1575		W83687THF
1576		W83697HF
1577		W83697UG
1578		NCT6775
1579		NCT6776
1580		NCT6779
1581		NCT6791
1582		NCT6792
1583		NCT6102D/04D/06D
1584		NCT6116D
1585
1586	  This watchdog simply watches your kernel to make sure it doesn't
1587	  freeze, and if it does, it reboots your computer after a certain
1588	  amount of time.
1589
1590	  To compile this driver as a module, choose M here: the
1591	  module will be called w83627hf_wdt.
1592
1593	  Most people will say N.
1594
1595config W83877F_WDT
1596	tristate "W83877F (EMACS) Watchdog Timer"
1597	depends on X86 || COMPILE_TEST
1598	help
1599	  This is the driver for the hardware watchdog on the W83877F chipset
1600	  as used in EMACS PC-104 motherboards (and likely others).  This
1601	  watchdog simply watches your kernel to make sure it doesn't freeze,
1602	  and if it does, it reboots your computer after a certain amount of
1603	  time.
1604
1605	  To compile this driver as a module, choose M here: the
1606	  module will be called w83877f_wdt.
1607
1608	  Most people will say N.
1609
1610config W83977F_WDT
1611	tristate "W83977F (PCM-5335) Watchdog Timer"
1612	depends on X86 || COMPILE_TEST
1613	help
1614	  This is the driver for the hardware watchdog on the W83977F I/O chip
1615	  as used in AAEON's PCM-5335 SBC (and likely others).  This
1616	  watchdog simply watches your kernel to make sure it doesn't freeze,
1617	  and if it does, it reboots your computer after a certain amount of
1618	  time.
1619
1620	  To compile this driver as a module, choose M here: the
1621	  module will be called w83977f_wdt.
1622
1623config MACHZ_WDT
1624	tristate "ZF MachZ Watchdog"
1625	depends on X86 || COMPILE_TEST
1626	help
1627	  If you are using a ZF Micro MachZ processor, say Y here, otherwise
1628	  N.  This is the driver for the watchdog timer built-in on that
1629	  processor using ZF-Logic interface.  This watchdog simply watches
1630	  your kernel to make sure it doesn't freeze, and if it does, it
1631	  reboots your computer after a certain amount of time.
1632
1633	  To compile this driver as a module, choose M here: the
1634	  module will be called machzwd.
1635
1636config SBC_EPX_C3_WATCHDOG
1637	tristate "Winsystems SBC EPX-C3 watchdog"
1638	depends on X86 || COMPILE_TEST
1639	help
1640	  This is the driver for the built-in watchdog timer on the EPX-C3
1641	  Single-board computer made by Winsystems, Inc.
1642
1643	  *Note*: This hardware watchdog is not probeable and thus there
1644	  is no way to know if writing to its IO address will corrupt
1645	  your system or have any real effect.  The only way to be sure
1646	  that this driver does what you want is to make sure you
1647	  are running it on an EPX-C3 from Winsystems with the watchdog
1648	  timer at IO address 0x1ee and 0x1ef.  It will write to both those
1649	  IO ports.  Basically, the assumption is made that if you compile
1650	  this driver into your kernel and/or load it as a module, that you
1651	  know what you are doing and that you are in fact running on an
1652	  EPX-C3 board!
1653
1654	  To compile this driver as a module, choose M here: the
1655	  module will be called sbc_epx_c3.
1656
1657config INTEL_MEI_WDT
1658	tristate "Intel MEI iAMT Watchdog"
1659	depends on INTEL_MEI && X86
1660	select WATCHDOG_CORE
1661	help
1662	  A device driver for the Intel MEI iAMT watchdog.
1663
1664	  The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1665	  Whenever the OS hangs or crashes, iAMT will send an event
1666	  to any subscriber to this event. The watchdog doesn't reset the
1667	  the platform.
1668
1669	  To compile this driver as a module, choose M here:
1670	  the module will be called mei_wdt.
1671
1672config NI903X_WDT
1673	tristate "NI 903x/913x Watchdog"
1674	depends on X86 && ACPI
1675	select WATCHDOG_CORE
1676	help
1677	  This is the driver for the watchdog timer on the National Instruments
1678	  903x/913x real-time controllers.
1679
1680	  To compile this driver as a module, choose M here: the module will be
1681	  called ni903x_wdt.
1682
1683config NIC7018_WDT
1684	tristate "NIC7018 Watchdog"
1685	depends on X86 && ACPI
1686	select WATCHDOG_CORE
1687	help
1688	  Support for National Instruments NIC7018 Watchdog.
1689
1690	  To compile this driver as a module, choose M here: the module will be
1691	  called nic7018_wdt.
1692
1693config SIEMENS_SIMATIC_IPC_WDT
1694	tristate "Siemens Simatic IPC Watchdog"
1695	depends on SIEMENS_SIMATIC_IPC && PCI
1696	default y
1697	select WATCHDOG_CORE
1698	select P2SB if X86
1699	help
1700	  This driver adds support for several watchdogs found in Industrial
1701	  PCs from Siemens.
1702
1703	  To compile this driver as a module, choose M here: the module will be
1704	  called simatic-ipc-wdt.
1705
1706# M68K Architecture
1707
1708config M54xx_WATCHDOG
1709	tristate "MCF54xx watchdog support"
1710	depends on M548x
1711	help
1712	  To compile this driver as a module, choose M here: the
1713	  module will be called m54xx_wdt.
1714
1715# MicroBlaze Architecture
1716
1717# MIPS Architecture
1718
1719config ATH79_WDT
1720	tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1721	depends on ATH79 || (ARM && COMPILE_TEST)
1722	help
1723	  Hardware driver for the built-in watchdog timer on the Atheros
1724	  AR71XX/AR724X/AR913X SoCs.
1725
1726config BCM47XX_WDT
1727	tristate "Broadcom BCM47xx Watchdog Timer"
1728	depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1729	select WATCHDOG_CORE
1730	help
1731	  Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1732
1733config RC32434_WDT
1734	tristate "IDT RC32434 SoC Watchdog Timer"
1735	depends on MIKROTIK_RB532
1736	help
1737	  Hardware driver for the IDT RC32434 SoC built-in
1738	  watchdog timer.
1739
1740	  To compile this driver as a module, choose M here: the
1741	  module will be called rc32434_wdt.
1742
1743config INDYDOG
1744	tristate "Indy/I2 Hardware Watchdog"
1745	depends on SGI_HAS_INDYDOG
1746	help
1747	  Hardware driver for the Indy's/I2's watchdog. This is a
1748	  watchdog timer that will reboot the machine after a 60 second
1749	  timer expired and no process has written to /dev/watchdog during
1750	  that time.
1751
1752config JZ4740_WDT
1753	tristate "Ingenic jz4740 SoC hardware watchdog"
1754	depends on MIPS || COMPILE_TEST
1755	depends on COMMON_CLK
1756	select WATCHDOG_CORE
1757	select MFD_SYSCON
1758	help
1759	  Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1760
1761config WDT_MTX1
1762	tristate "MTX-1 Hardware Watchdog"
1763	depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1764	help
1765	  Hardware driver for the MTX-1 boards. This is a watchdog timer that
1766	  will reboot the machine after a 100 seconds timer expired.
1767
1768config SIBYTE_WDOG
1769	tristate "Sibyte SoC hardware watchdog"
1770	depends on CPU_SB1
1771	help
1772	  Watchdog driver for the built in watchdog hardware in Sibyte
1773	  SoC processors.  There are apparently two watchdog timers
1774	  on such processors; this driver supports only the first one,
1775	  because currently Linux only supports exporting one watchdog
1776	  to userspace.
1777
1778	  To compile this driver as a loadable module, choose M here.
1779	  The module will be called sb_wdog.
1780
1781config TXX9_WDT
1782	tristate "Toshiba TXx9 Watchdog Timer"
1783	depends on CPU_TX49XX || (MIPS && COMPILE_TEST)
1784	select WATCHDOG_CORE
1785	help
1786	  Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1787
1788config OCTEON_WDT
1789	tristate "Cavium OCTEON SOC family Watchdog Timer"
1790	depends on CAVIUM_OCTEON_SOC
1791	default y
1792	select WATCHDOG_CORE
1793	select EXPORT_UASM if OCTEON_WDT = m
1794	help
1795	  Hardware driver for OCTEON's on chip watchdog timer.
1796	  Enables the watchdog for all cores running Linux. It
1797	  installs a NMI handler and pokes the watchdog based on an
1798	  interrupt.  On first expiration of the watchdog, the
1799	  interrupt handler pokes it.  The second expiration causes an
1800	  NMI that prints a message. The third expiration causes a
1801	  global soft reset.
1802
1803	  When userspace has /dev/watchdog open, no poking is done
1804	  from the first interrupt, it is then only poked when the
1805	  device is written.
1806
1807config MARVELL_GTI_WDT
1808	tristate "Marvell GTI Watchdog driver"
1809	depends on ARCH_THUNDER || (COMPILE_TEST && 64BIT)
1810	default y
1811	select WATCHDOG_CORE
1812	help
1813	  Marvell GTI hardware supports watchdog timer. First timeout
1814	  works as watchdog pretimeout and installed interrupt handler
1815	  will be called on first timeout. Hardware can generate interrupt
1816	  to SCP on second timeout but it is not enabled, so second
1817	  timeout is ignored. If device poke does not happen then system
1818	  will reboot on third timeout.
1819
1820config BCM2835_WDT
1821	tristate "Broadcom BCM2835 hardware watchdog"
1822	depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1823	select WATCHDOG_CORE
1824	help
1825	  Watchdog driver for the built in watchdog hardware in Broadcom
1826	  BCM2835 SoC.
1827
1828	  To compile this driver as a loadable module, choose M here.
1829	  The module will be called bcm2835_wdt.
1830
1831config BCM_KONA_WDT
1832	tristate "BCM Kona Watchdog"
1833	depends on ARCH_BCM_MOBILE || COMPILE_TEST
1834	select WATCHDOG_CORE
1835	help
1836	  Support for the watchdog timer on the following Broadcom BCM281xx
1837	  family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1838	  BCM28155 variants.
1839
1840	  Say 'Y' or 'M' here to enable the driver. The module will be called
1841	  bcm_kona_wdt.
1842
1843config BCM_KONA_WDT_DEBUG
1844	bool "DEBUGFS support for BCM Kona Watchdog"
1845	depends on BCM_KONA_WDT || COMPILE_TEST
1846	help
1847	  If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1848	  access to the driver's internal data structures as well as watchdog
1849	  timer hardware registres.
1850
1851	  If in doubt, say 'N'.
1852
1853config BCM7038_WDT
1854	tristate "BCM63xx/BCM7038 Watchdog"
1855	select WATCHDOG_CORE
1856	depends on HAS_IOMEM
1857	depends on ARCH_BCMBCA || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || COMPILE_TEST
1858	help
1859	  Watchdog driver for the built-in hardware in Broadcom 7038 and
1860	  later SoCs used in set-top boxes.  BCM7038 was made public
1861	  during the 2004 CES, and since then, many Broadcom chips use this
1862	  watchdog block, including some cable modem chips and DSL (63xx)
1863	  chips.
1864
1865config IMGPDC_WDT
1866	tristate "Imagination Technologies PDC Watchdog Timer"
1867	depends on HAS_IOMEM
1868	depends on MIPS || COMPILE_TEST
1869	select WATCHDOG_CORE
1870	help
1871	  Driver for Imagination Technologies PowerDown Controller
1872	  Watchdog Timer.
1873
1874	  To compile this driver as a loadable module, choose M here.
1875	  The module will be called imgpdc_wdt.
1876
1877config LANTIQ_WDT
1878	tristate "Lantiq SoC watchdog"
1879	depends on LANTIQ
1880	select WATCHDOG_CORE
1881	help
1882	  Hardware driver for the Lantiq SoC Watchdog Timer.
1883
1884config LOONGSON1_WDT
1885	tristate "Loongson1 SoC hardware watchdog"
1886	depends on MACH_LOONGSON32 || COMPILE_TEST
1887	select WATCHDOG_CORE
1888	help
1889	  Hardware driver for the Loongson1 SoC Watchdog Timer.
1890
1891config RALINK_WDT
1892	tristate "Ralink SoC watchdog"
1893	select WATCHDOG_CORE
1894	depends on RALINK
1895	help
1896	  Hardware driver for the Ralink SoC Watchdog Timer.
1897
1898config GXP_WATCHDOG
1899	tristate "HPE GXP watchdog support"
1900	depends on ARCH_HPE_GXP || COMPILE_TEST
1901	select WATCHDOG_CORE
1902	help
1903	  Say Y here to include support for the watchdog timer
1904	  in HPE GXP SoCs.
1905
1906	  To compile this driver as a module, choose M here.
1907	  The module will be called gxp-wdt.
1908
1909config MT7621_WDT
1910	tristate "Mediatek SoC watchdog"
1911	select WATCHDOG_CORE
1912	select REGMAP_MMIO
1913	select MFD_SYSCON
1914	depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
1915	help
1916	  Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1917
1918config PIC32_WDT
1919	tristate "Microchip PIC32 hardware watchdog"
1920	select WATCHDOG_CORE
1921	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1922	help
1923	  Watchdog driver for the built in watchdog hardware in a PIC32.
1924
1925	  Configuration bits must be set appropriately for the watchdog to be
1926	  controlled by this driver.
1927
1928	  To compile this driver as a loadable module, choose M here.
1929	  The module will be called pic32-wdt.
1930
1931config PIC32_DMT
1932	tristate "Microchip PIC32 Deadman Timer"
1933	select WATCHDOG_CORE
1934	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1935	help
1936	  Watchdog driver for PIC32 instruction fetch counting timer. This
1937	  specific timer is typically be used in mission critical and safety
1938	  critical applications, where any single failure of the software
1939	  functionality and sequencing must be detected.
1940
1941	  To compile this driver as a loadable module, choose M here.
1942	  The module will be called pic32-dmt.
1943
1944# PARISC Architecture
1945
1946# POWERPC Architecture
1947
1948config GEF_WDT
1949	tristate "GE Watchdog Timer"
1950	depends on GE_FPGA
1951	help
1952	  Watchdog timer found in a number of GE single board computers.
1953
1954config MPC5200_WDT
1955	bool "MPC52xx Watchdog Timer"
1956	depends on PPC_MPC52xx || COMPILE_TEST
1957	help
1958	  Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1959
1960config 8xxx_WDT
1961	tristate "MPC8xxx Platform Watchdog Timer"
1962	depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1963	select WATCHDOG_CORE
1964	help
1965	  This driver is for a SoC level watchdog that exists on some
1966	  Freescale PowerPC processors. So far this driver supports:
1967	  - MPC8xx watchdogs
1968	  - MPC83xx watchdogs
1969	  - MPC86xx watchdogs
1970
1971	  For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1972
1973config PIKA_WDT
1974	tristate "PIKA FPGA Watchdog"
1975	depends on WARP || (PPC64 && COMPILE_TEST)
1976	default y
1977	help
1978	  This enables the watchdog in the PIKA FPGA. Currently used on
1979	  the Warp platform.
1980
1981config BOOKE_WDT
1982	tristate "PowerPC Book-E Watchdog Timer"
1983	depends on BOOKE || 4xx
1984	select WATCHDOG_CORE
1985	help
1986	  Watchdog driver for PowerPC Book-E chips, such as the Freescale
1987	  MPC85xx SOCs and the IBM PowerPC 440.
1988
1989	  Please see Documentation/watchdog/watchdog-api.rst for
1990	  more information.
1991
1992config BOOKE_WDT_DEFAULT_TIMEOUT
1993	int "PowerPC Book-E Watchdog Timer Default Timeout"
1994	depends on BOOKE_WDT
1995	default 38 if PPC_E500
1996	range 0 63 if PPC_E500
1997	default 3 if !PPC_E500
1998	range 0 3 if !PPC_E500
1999	help
2000	  Select the default watchdog timer period to be used by the PowerPC
2001	  Book-E watchdog driver.  A watchdog "event" occurs when the bit
2002	  position represented by this number transitions from zero to one.
2003
2004	  For Freescale Book-E processors, this is a number between 0 and 63.
2005	  For other Book-E processors, this is a number between 0 and 3.
2006
2007	  The value can be overridden by the wdt_period command-line parameter.
2008
2009config MEN_A21_WDT
2010	tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
2011	select WATCHDOG_CORE
2012	depends on GPIOLIB || COMPILE_TEST
2013	help
2014	  Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
2015
2016	  The driver can also be built as a module. If so, the module will be
2017	  called mena21_wdt.
2018
2019	  If unsure select N here.
2020
2021# PPC64 Architecture
2022
2023config PSERIES_WDT
2024	tristate "POWER Architecture Platform Watchdog Timer"
2025	depends on PPC_PSERIES
2026	select WATCHDOG_CORE
2027	help
2028	  Driver for virtual watchdog timers provided by PAPR
2029	  hypervisors (e.g. PowerVM, KVM).
2030
2031config WATCHDOG_RTAS
2032	tristate "RTAS watchdog"
2033	depends on PPC_RTAS
2034	help
2035	  This driver adds watchdog support for the RTAS watchdog.
2036
2037	  To compile this driver as a module, choose M here. The module
2038	  will be called wdrtas.
2039
2040# RISC-V Architecture
2041
2042config STARFIVE_WATCHDOG
2043	tristate "StarFive Watchdog support"
2044	depends on ARCH_STARFIVE || COMPILE_TEST
2045	select WATCHDOG_CORE
2046	default ARCH_STARFIVE
2047	help
2048	  Say Y here to support the watchdog of StarFive JH7100 and JH7110
2049	  SoC. This driver can also be built as a module if choose M.
2050
2051# S390 Architecture
2052
2053config DIAG288_WATCHDOG
2054	tristate "System z diag288 Watchdog"
2055	depends on S390
2056	select WATCHDOG_CORE
2057	help
2058	  IBM s/390 and zSeries machines running under z/VM 5.1 or later
2059	  provide a virtual watchdog timer to their guest that cause a
2060	  user define Control Program command to be executed after a
2061	  timeout.
2062	  LPAR provides a very similar interface. This driver handles
2063	  both.
2064
2065	  To compile this driver as a module, choose M here. The module
2066	  will be called diag288_wdt.
2067
2068# SUPERH (sh + sh64) Architecture
2069
2070config SH_WDT
2071	tristate "SuperH Watchdog"
2072	depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
2073	select WATCHDOG_CORE
2074	help
2075	  This driver adds watchdog support for the integrated watchdog in the
2076	  SuperH processors. If you have one of these processors and wish
2077	  to have watchdog support enabled, say Y, otherwise say N.
2078
2079	  As a side note, saying Y here will automatically boost HZ to 1000
2080	  so that the timer has a chance to clear the overflow counter. On
2081	  slower systems (such as the SH-2 and SH-3) this will likely yield
2082	  some performance issues. As such, the WDT should be avoided here
2083	  unless it is absolutely necessary.
2084
2085	  To compile this driver as a module, choose M here: the
2086	  module will be called shwdt.
2087
2088# SPARC Architecture
2089
2090# SPARC64 Architecture
2091
2092config WATCHDOG_CP1XXX
2093	tristate "CP1XXX Hardware Watchdog support"
2094	depends on SPARC64 && PCI
2095	help
2096	  This is the driver for the hardware watchdog timers present on
2097	  Sun Microsystems CompactPCI models CP1400 and CP1500.
2098
2099	  To compile this driver as a module, choose M here: the
2100	  module will be called cpwatchdog.
2101
2102	  If you do not have a CompactPCI model CP1400 or CP1500, or
2103	  another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
2104	  you should say N to this option.
2105
2106config WATCHDOG_RIO
2107	tristate "RIO Hardware Watchdog support"
2108	depends on SPARC64 && PCI
2109	help
2110	  Say Y here to support the hardware watchdog capability on Sun RIO
2111	  machines.  The watchdog timeout period is normally one minute but
2112	  can be changed with a boot-time parameter.
2113
2114config WATCHDOG_SUN4V
2115	tristate "Sun4v Watchdog support"
2116	select WATCHDOG_CORE
2117	depends on SPARC64
2118	help
2119	  Say Y here to support the hypervisor watchdog capability embedded
2120	  in the SPARC sun4v architecture.
2121
2122	  To compile this driver as a module, choose M here. The module will
2123	  be called sun4v_wdt.
2124
2125# XTENSA Architecture
2126
2127# Xen Architecture
2128
2129config XEN_WDT
2130	tristate "Xen Watchdog support"
2131	depends on XEN
2132	select WATCHDOG_CORE
2133	help
2134	  Say Y here to support the hypervisor watchdog capability provided
2135	  by Xen 4.0 and newer.  The watchdog timeout period is normally one
2136	  minute but can be changed with a boot-time parameter.
2137
2138config UML_WATCHDOG
2139	tristate "UML watchdog"
2140	depends on UML || COMPILE_TEST
2141
2142#
2143# ISA-based Watchdog Cards
2144#
2145
2146comment "ISA-based Watchdog Cards"
2147	depends on ISA
2148
2149config PCWATCHDOG
2150	tristate "Berkshire Products ISA-PC Watchdog"
2151	depends on ISA
2152	help
2153	  This is the driver for the Berkshire Products ISA-PC Watchdog card.
2154	  This card simply watches your kernel to make sure it doesn't freeze,
2155	  and if it does, it reboots your computer after a certain amount of
2156	  time. This driver is like the WDT501 driver but for different
2157	  hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>.
2158	  The PC watchdog cards can be ordered from <http://www.berkprod.com/>.
2159
2160	  To compile this driver as a module, choose M here: the
2161	  module will be called pcwd.
2162
2163	  Most people will say N.
2164
2165config MIXCOMWD
2166	tristate "Mixcom Watchdog"
2167	depends on ISA
2168	help
2169	  This is a driver for the Mixcom hardware watchdog cards.  This
2170	  watchdog simply watches your kernel to make sure it doesn't freeze,
2171	  and if it does, it reboots your computer after a certain amount of
2172	  time.
2173
2174	  To compile this driver as a module, choose M here: the
2175	  module will be called mixcomwd.
2176
2177	  Most people will say N.
2178
2179config WDT
2180	tristate "WDT Watchdog timer"
2181	depends on ISA
2182	help
2183	  If you have a WDT500P or WDT501P watchdog board, say Y here,
2184	  otherwise N. It is not possible to probe for this board, which means
2185	  that you have to inform the kernel about the IO port and IRQ that
2186	  is needed (you can do this via the io and irq parameters)
2187
2188	  To compile this driver as a module, choose M here: the
2189	  module will be called wdt.
2190
2191#
2192# PCI-based Watchdog Cards
2193#
2194
2195comment "PCI-based Watchdog Cards"
2196	depends on PCI
2197
2198config PCIPCWATCHDOG
2199	tristate "Berkshire Products PCI-PC Watchdog"
2200	depends on PCI
2201	help
2202	  This is the driver for the Berkshire Products PCI-PC Watchdog card.
2203	  This card simply watches your kernel to make sure it doesn't freeze,
2204	  and if it does, it reboots your computer after a certain amount of
2205	  time. The card can also monitor the internal temperature of the PC.
2206	  More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2207
2208	  To compile this driver as a module, choose M here: the
2209	  module will be called pcwd_pci.
2210
2211	  Most people will say N.
2212
2213config WDTPCI
2214	tristate "PCI-WDT500/501 Watchdog timer"
2215	depends on PCI
2216	help
2217	  If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2218
2219	  If you have a PCI-WDT501 watchdog board then you can enable the
2220	  temperature sensor by setting the type parameter to 501.
2221
2222	  If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2223	  can do this via the tachometer parameter. Only do this if you have a
2224	  fan tachometer actually set up.
2225
2226	  To compile this driver as a module, choose M here: the
2227	  module will be called wdt_pci.
2228
2229#
2230# USB-based Watchdog Cards
2231#
2232
2233comment "USB-based Watchdog Cards"
2234	depends on USB
2235
2236config USBPCWATCHDOG
2237	tristate "Berkshire Products USB-PC Watchdog"
2238	depends on USB
2239	help
2240	  This is the driver for the Berkshire Products USB-PC Watchdog card.
2241	  This card simply watches your kernel to make sure it doesn't freeze,
2242	  and if it does, it reboots your computer after a certain amount of
2243	  time. The card can also monitor the internal temperature of the PC.
2244	  More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2245
2246	  To compile this driver as a module, choose M here: the
2247	  module will be called pcwd_usb.
2248
2249	  Most people will say N.
2250
2251config KEEMBAY_WATCHDOG
2252	tristate "Intel Keem Bay SoC non-secure watchdog"
2253	depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST)
2254	select WATCHDOG_CORE
2255	help
2256	  This option enable support for an In-secure watchdog timer driver for
2257	  Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every
2258	  count unit. An interrupt will be triggered, when the count crosses
2259	  the threshold configured in the register.
2260
2261	  To compile this driver as a module, choose M here: the
2262	  module will be called keembay_wdt.
2263
2264endif # WATCHDOG
2265