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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 DA9052_WATCHDOG
185	tristate "Dialog DA9052 Watchdog"
186	depends on PMIC_DA9052 || COMPILE_TEST
187	select WATCHDOG_CORE
188	help
189	  Support for the watchdog in the DA9052 PMIC. Watchdog trigger
190	  cause system reset.
191
192	  Say Y here to include support for the DA9052 watchdog.
193	  Alternatively say M to compile the driver as a module,
194	  which will be called da9052_wdt.
195
196config DA9055_WATCHDOG
197	tristate "Dialog Semiconductor DA9055 Watchdog"
198	depends on MFD_DA9055 || COMPILE_TEST
199	select WATCHDOG_CORE
200	help
201	  If you say yes here you get support for watchdog on the Dialog
202	  Semiconductor DA9055 PMIC.
203
204	  This driver can also be built as a module.  If so, the module
205	  will be called da9055_wdt.
206
207config DA9063_WATCHDOG
208	tristate "Dialog DA9063 Watchdog"
209	depends on MFD_DA9063 || COMPILE_TEST
210	select WATCHDOG_CORE
211	help
212	  Support for the watchdog in the DA9063 PMIC.
213
214	  This driver can be built as a module. The module name is da9063_wdt.
215
216config DA9062_WATCHDOG
217	tristate "Dialog DA9062/61 Watchdog"
218	depends on MFD_DA9062 || COMPILE_TEST
219	depends on I2C
220	select WATCHDOG_CORE
221	help
222	  Support for the watchdog in the DA9062 and DA9061 PMICs.
223
224	  This driver can be built as a module. The module name is da9062_wdt.
225
226config GPIO_WATCHDOG
227	tristate "Watchdog device controlled through GPIO-line"
228	depends on OF_GPIO
229	select WATCHDOG_CORE
230	help
231	  If you say yes here you get support for watchdog device
232	  controlled through GPIO-line.
233
234config GPIO_WATCHDOG_ARCH_INITCALL
235	bool "Register the watchdog as early as possible"
236	depends on GPIO_WATCHDOG=y
237	help
238	  In some situations, the default initcall level (module_init)
239	  in not early enough in the boot process to avoid the watchdog
240	  to be triggered.
241	  If you say yes here, the initcall level would be raised to
242	  arch_initcall.
243	  If in doubt, say N.
244
245config MENF21BMC_WATCHDOG
246	tristate "MEN 14F021P00 BMC Watchdog"
247	depends on MFD_MENF21BMC || COMPILE_TEST
248	depends on I2C
249	select WATCHDOG_CORE
250	help
251	  Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
252
253	  This driver can also be built as a module. If so the module
254	  will be called menf21bmc_wdt.
255
256config MENZ069_WATCHDOG
257	tristate "MEN 16Z069 Watchdog"
258	depends on MCB
259	select WATCHDOG_CORE
260	help
261	  Say Y here to include support for the MEN 16Z069 Watchdog.
262
263	  This driver can also be built as a module. If so the module
264	  will be called menz069_wdt.
265
266config WDAT_WDT
267	tristate "ACPI Watchdog Action Table (WDAT)"
268	depends on ACPI
269	select WATCHDOG_CORE
270	select ACPI_WATCHDOG
271	help
272	  This driver adds support for systems with ACPI Watchdog Action
273	  Table (WDAT) table. Servers typically have this but it can be
274	  found on some desktop machines as well. This driver will take
275	  over the native iTCO watchdog driver found on many Intel CPUs.
276
277	  To compile this driver as module, choose M here: the module will
278	  be called wdat_wdt.
279
280config WM831X_WATCHDOG
281	tristate "WM831x watchdog"
282	depends on MFD_WM831X
283	select WATCHDOG_CORE
284	help
285	  Support for the watchdog in the WM831x AudioPlus PMICs.  When
286	  the watchdog triggers the system will be reset.
287
288config WM8350_WATCHDOG
289	tristate "WM8350 watchdog"
290	depends on MFD_WM8350
291	select WATCHDOG_CORE
292	help
293	  Support for the watchdog in the WM8350 AudioPlus PMIC.  When
294	  the watchdog triggers the system will be reset.
295
296config XILINX_WATCHDOG
297	tristate "Xilinx Watchdog timer"
298	depends on HAS_IOMEM
299	select WATCHDOG_CORE
300	help
301	  Watchdog driver for the xps_timebase_wdt IP core.
302
303	  To compile this driver as a module, choose M here: the
304	  module will be called of_xilinx_wdt.
305
306config ZIIRAVE_WATCHDOG
307	tristate "Zodiac RAVE Watchdog Timer"
308	depends on I2C
309	select WATCHDOG_CORE
310	help
311	  Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
312	  Processor.
313
314	  To compile this driver as a module, choose M here: the
315	  module will be called ziirave_wdt.
316
317config RAVE_SP_WATCHDOG
318	tristate "RAVE SP Watchdog timer"
319	depends on RAVE_SP_CORE
320	depends on NVMEM || !NVMEM
321	select WATCHDOG_CORE
322	help
323	  Support for the watchdog on RAVE SP device.
324
325config MLX_WDT
326	tristate "Mellanox Watchdog"
327	depends on MELLANOX_PLATFORM
328	select WATCHDOG_CORE
329	select REGMAP
330	help
331	  This is the driver for the hardware watchdog on Mellanox systems.
332	  If you are going to use it, say Y here, otherwise N.
333	  This driver can be used together with the watchdog daemon.
334	  It can also watch your kernel to make sure it doesn't freeze,
335	  and if it does, it reboots your system after a certain amount of
336	  time.
337
338	  To compile this driver as a module, choose M here: the
339	  module will be called mlx-wdt.
340
341config SL28CPLD_WATCHDOG
342	tristate "Kontron sl28cpld Watchdog"
343	depends on MFD_SL28CPLD || COMPILE_TEST
344	select WATCHDOG_CORE
345	help
346	  Say Y here to include support for the watchdog timer
347	  on the Kontron sl28 CPLD.
348
349	  To compile this driver as a module, choose M here: the
350	  module will be called sl28cpld_wdt.
351
352# ALPHA Architecture
353
354# ARM Architecture
355
356config ARM_SP805_WATCHDOG
357	tristate "ARM SP805 Watchdog"
358	depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
359	select WATCHDOG_CORE
360	help
361	  ARM Primecell SP805 Watchdog timer. This will reboot your system when
362	  the timeout is reached.
363
364config ARM_SBSA_WATCHDOG
365	tristate "ARM SBSA Generic Watchdog"
366	depends on ARM64
367	depends on ARM_ARCH_TIMER
368	select WATCHDOG_CORE
369	help
370	  ARM SBSA Generic Watchdog has two stage timeouts:
371	  the first signal (WS0) is for alerting the system by interrupt,
372	  the second one (WS1) is a real hardware reset.
373	  More details: ARM DEN0029B - Server Base System Architecture (SBSA)
374
375	  This driver can operate ARM SBSA Generic Watchdog as a single stage
376	  or a two stages watchdog, it depends on the module parameter "action".
377
378	  Note: the maximum timeout in the two stages mode is half of that in
379	  the single stage mode.
380
381	  To compile this driver as module, choose M here: The module
382	  will be called sbsa_gwdt.
383
384config ARMADA_37XX_WATCHDOG
385	tristate "Armada 37xx watchdog"
386	depends on ARCH_MVEBU || COMPILE_TEST
387	depends on HAS_IOMEM
388	select MFD_SYSCON
389	select WATCHDOG_CORE
390	help
391	   Say Y here to include support for the watchdog timer found on
392	   Marvell Armada 37xx SoCs.
393	   To compile this driver as a module, choose M here: the
394	   module will be called armada_37xx_wdt.
395
396config ASM9260_WATCHDOG
397	tristate "Alphascale ASM9260 watchdog"
398	depends on MACH_ASM9260 || COMPILE_TEST
399	depends on OF
400	select WATCHDOG_CORE
401	select RESET_CONTROLLER
402	help
403	  Watchdog timer embedded into Alphascale asm9260 chips. This will
404	  reboot your system when the timeout is reached.
405
406config AT91RM9200_WATCHDOG
407	tristate "AT91RM9200 watchdog"
408	depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
409	help
410	  Watchdog timer embedded into AT91RM9200 chips. This will reboot your
411	  system when the timeout is reached.
412
413config AT91SAM9X_WATCHDOG
414	tristate "AT91SAM9X / AT91CAP9 watchdog"
415	depends on ARCH_AT91 || COMPILE_TEST
416	select WATCHDOG_CORE
417	help
418	  Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
419	  reboot your system when the timeout is reached.
420
421config SAMA5D4_WATCHDOG
422	tristate "Atmel SAMA5D4 Watchdog Timer"
423	depends on ARCH_AT91 || COMPILE_TEST
424	select WATCHDOG_CORE
425	help
426	  Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
427	  Its Watchdog Timer Mode Register can be written more than once.
428	  This will reboot your system when the timeout is reached.
429
430config CADENCE_WATCHDOG
431	tristate "Cadence Watchdog Timer"
432	depends on HAS_IOMEM
433	select WATCHDOG_CORE
434	help
435	  Say Y here if you want to include support for the watchdog
436	  timer in the Xilinx Zynq.
437
438config 21285_WATCHDOG
439	tristate "DC21285 watchdog"
440	depends on FOOTBRIDGE
441	help
442	  The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
443	  here if you wish to use this. Alternatively say M to compile the
444	  driver as a module, which will be called wdt285.
445
446	  This driver does not work on all machines. In particular, early CATS
447	  boards have hardware problems that will cause the machine to simply
448	  lock up if the watchdog fires.
449
450	  "If in doubt, leave it out" - say N.
451
452config 977_WATCHDOG
453	tristate "NetWinder WB83C977 watchdog"
454	depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
455	help
456	  Say Y here to include support for the WB977 watchdog included in
457	  NetWinder machines. Alternatively say M to compile the driver as
458	  a module, which will be called wdt977.
459
460	  Not sure? It's safe to say N.
461
462config FTWDT010_WATCHDOG
463	tristate "Faraday Technology FTWDT010 watchdog"
464	depends on ARM || COMPILE_TEST
465	select WATCHDOG_CORE
466	default ARCH_GEMINI
467	help
468	  Say Y here if to include support for the Faraday Technology
469	  FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
470	  family of devices.
471
472	  To compile this driver as a module, choose M here: the
473	  module will be called ftwdt010_wdt.
474
475config IXP4XX_WATCHDOG
476	tristate "IXP4xx Watchdog"
477	depends on ARCH_IXP4XX
478	select WATCHDOG_CORE
479	help
480	  Say Y here if to include support for the watchdog timer
481	  in the Intel IXP4xx network processors. This driver can
482	  be built as a module by choosing M. The module will
483	  be called ixp4xx_wdt.
484
485	  Note: The internal IXP4xx watchdog does a soft CPU reset
486	  which doesn't reset any peripherals. There are circumstances
487	  where the watchdog will fail to reset the board correctly
488	  (e.g., if the boot ROM is in an unreadable state).
489
490	  Say N if you are unsure.
491
492config S3C2410_WATCHDOG
493	tristate "S3C2410 Watchdog"
494	depends on ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || \
495		   COMPILE_TEST
496	select WATCHDOG_CORE
497	select MFD_SYSCON if ARCH_EXYNOS
498	help
499	  Watchdog timer block in the Samsung SoCs. This will reboot
500	  the system when the timer expires with the watchdog enabled.
501
502	  The driver is limited by the speed of the system's PCLK
503	  signal, so with reasonably fast systems (PCLK around 50-66MHz)
504	  then watchdog intervals of over approximately 20seconds are
505	  unavailable.
506
507	  The driver can be built as a module by choosing M, and will
508	  be called s3c2410_wdt
509
510config SA1100_WATCHDOG
511	tristate "SA1100/PXA2xx watchdog"
512	depends on ARCH_SA1100 || ARCH_PXA
513	help
514	  Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
515	  reboot your system when timeout is reached.
516
517	  NOTE: once enabled, this timer cannot be disabled.
518
519	  To compile this driver as a module, choose M here: the
520	  module will be called sa1100_wdt.
521
522config DW_WATCHDOG
523	tristate "Synopsys DesignWare watchdog"
524	depends on HAS_IOMEM
525	select WATCHDOG_CORE
526	help
527	  Say Y here if to include support for the Synopsys DesignWare
528	  watchdog timer found in many chips.
529	  To compile this driver as a module, choose M here: the
530	  module will be called dw_wdt.
531
532config EP93XX_WATCHDOG
533	tristate "EP93xx Watchdog"
534	depends on ARCH_EP93XX || COMPILE_TEST
535	select WATCHDOG_CORE
536	help
537	  Say Y here if to include support for the watchdog timer
538	  embedded in the Cirrus Logic EP93xx family of devices.
539
540	  To compile this driver as a module, choose M here: the
541	  module will be called ep93xx_wdt.
542
543config OMAP_WATCHDOG
544	tristate "OMAP Watchdog"
545	depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
546	select WATCHDOG_CORE
547	help
548	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.
549	  Say 'Y' here to enable the
550	  OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
551
552config PNX4008_WATCHDOG
553	tristate "LPC32XX Watchdog"
554	depends on ARCH_LPC32XX || COMPILE_TEST
555	select WATCHDOG_CORE
556	help
557	  Say Y here if to include support for the watchdog timer
558	  in the LPC32XX processor.
559	  This driver can be built as a module by choosing M. The module
560	  will be called pnx4008_wdt.
561
562	  Say N if you are unsure.
563
564config IOP_WATCHDOG
565	tristate "IOP Watchdog"
566	depends on ARCH_IOP13XX
567	select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
568	help
569	  Say Y here if to include support for the watchdog timer
570	  in the Intel IOP3XX & IOP13XX I/O Processors.  This driver can
571	  be built as a module by choosing M. The module will
572	  be called iop_wdt.
573
574	  Note: The IOP13XX watchdog does an Internal Bus Reset which will
575	  affect both cores and the peripherals of the IOP.  The ATU-X
576	  and/or ATUe configuration registers will remain intact, but if
577	  operating as an Root Complex and/or Central Resource, the PCI-X
578	  and/or PCIe busses will also be reset.  THIS IS A VERY BIG HAMMER.
579
580config DAVINCI_WATCHDOG
581	tristate "DaVinci watchdog"
582	depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
583	select WATCHDOG_CORE
584	help
585	  Say Y here if to include support for the watchdog timer
586	  in the DaVinci DM644x/DM646x or Keystone processors.
587	  To compile this driver as a module, choose M here: the
588	  module will be called davinci_wdt.
589
590	  NOTE: once enabled, this timer cannot be disabled.
591	  Say N if you are unsure.
592
593config K3_RTI_WATCHDOG
594	tristate "Texas Instruments K3 RTI watchdog"
595	depends on ARCH_K3 || COMPILE_TEST
596	select WATCHDOG_CORE
597	help
598	  Say Y here if you want to include support for the K3 watchdog
599	  timer (RTI module) available in the K3 generation of processors.
600
601config ORION_WATCHDOG
602	tristate "Orion watchdog"
603	depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST
604	depends on ARM
605	select WATCHDOG_CORE
606	help
607	  Say Y here if to include support for the watchdog timer
608	  in the Marvell Orion5x and Kirkwood ARM SoCs.
609	  To compile this driver as a module, choose M here: the
610	  module will be called orion_wdt.
611
612config RN5T618_WATCHDOG
613	tristate "Ricoh RN5T618 watchdog"
614	depends on MFD_RN5T618 || COMPILE_TEST
615	select WATCHDOG_CORE
616	help
617	  If you say yes here you get support for watchdog on the Ricoh
618	  RN5T618 PMIC.
619
620	  This driver can also be built as a module.  If so, the module
621	  will be called rn5t618_wdt.
622
623config SUNXI_WATCHDOG
624	tristate "Allwinner SoCs watchdog support"
625	depends on ARCH_SUNXI || COMPILE_TEST
626	select WATCHDOG_CORE
627	help
628	  Say Y here to include support for the watchdog timer
629	  in Allwinner SoCs.
630	  To compile this driver as a module, choose M here: the
631	  module will be called sunxi_wdt.
632
633config NPCM7XX_WATCHDOG
634	tristate "Nuvoton NPCM750 watchdog"
635	depends on ARCH_NPCM || COMPILE_TEST
636	default y if ARCH_NPCM7XX
637	select WATCHDOG_CORE
638	help
639	  Say Y here to include Watchdog timer support for the
640	  watchdog embedded into the NPCM7xx.
641	  This watchdog is used to reset the system and thus cannot be
642	  compiled as a module.
643
644config TWL4030_WATCHDOG
645	tristate "TWL4030 Watchdog"
646	depends on TWL4030_CORE
647	select WATCHDOG_CORE
648	help
649	  Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
650	  watchdog timer support for TWL4030 chips.
651
652config STMP3XXX_RTC_WATCHDOG
653	tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
654	depends on RTC_DRV_STMP || COMPILE_TEST
655	select WATCHDOG_CORE
656	help
657	  Say Y here to include support for the watchdog timer inside
658	  the RTC for the STMP37XX/378X or i.MX23/28 SoC.
659	  To compile this driver as a module, choose M here: the
660	  module will be called stmp3xxx_rtc_wdt.
661
662config TS4800_WATCHDOG
663	tristate "TS-4800 Watchdog"
664	depends on HAS_IOMEM && OF
665	depends on SOC_IMX51 || COMPILE_TEST
666	select WATCHDOG_CORE
667	select MFD_SYSCON
668	help
669	  Technologic Systems TS-4800 has watchdog timer implemented in
670	  an external FPGA. Say Y here if you want to support for the
671	  watchdog timer on TS-4800 board.
672
673config TS72XX_WATCHDOG
674	tristate "TS-72XX SBC Watchdog"
675	depends on MACH_TS72XX || COMPILE_TEST
676	select WATCHDOG_CORE
677	help
678	  Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
679	  watchdog timer implemented in a external CPLD chip. Say Y here
680	  if you want to support for the watchdog timer on TS-72XX boards.
681
682	  To compile this driver as a module, choose M here: the
683	  module will be called ts72xx_wdt.
684
685config MAX63XX_WATCHDOG
686	tristate "Max63xx watchdog"
687	depends on HAS_IOMEM
688	select WATCHDOG_CORE
689	help
690	  Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
691
692config MAX77620_WATCHDOG
693	tristate "Maxim Max77620 Watchdog Timer"
694	depends on MFD_MAX77620 || COMPILE_TEST
695	select WATCHDOG_CORE
696	help
697	 This is the driver for the Max77620 watchdog timer.
698	 Say 'Y' here to enable the watchdog timer support for
699	 MAX77620 chips. To compile this driver as a module,
700	 choose M here: the module will be called max77620_wdt.
701
702config IMX2_WDT
703	tristate "IMX2+ Watchdog"
704	depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
705	select REGMAP_MMIO
706	select WATCHDOG_CORE
707	help
708	  This is the driver for the hardware watchdog
709	  on the Freescale IMX2 and later processors.
710	  If you have one of these processors and wish to have
711	  watchdog support enabled, say Y, otherwise say N.
712
713	  To compile this driver as a module, choose M here: the
714	  module will be called imx2_wdt.
715
716config IMX_SC_WDT
717	tristate "IMX SC Watchdog"
718	depends on HAVE_ARM_SMCCC
719	depends on IMX_SCU
720	select WATCHDOG_CORE
721	help
722	  This is the driver for the system controller watchdog
723	  on the NXP i.MX SoCs with system controller inside, the
724	  watchdog driver will call ARM SMC API and trap into
725	  ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
726	  will request system controller to execute the operations.
727	  If you have one of these processors and wish to have
728	  watchdog support enabled, say Y, otherwise say N.
729
730	  To compile this driver as a module, choose M here: the
731	  module will be called imx_sc_wdt.
732
733config IMX7ULP_WDT
734	tristate "IMX7ULP Watchdog"
735	depends on ARCH_MXC || COMPILE_TEST
736	select WATCHDOG_CORE
737	help
738	  This is the driver for the hardware watchdog on the Freescale
739	  IMX7ULP and later processors. If you have one of these
740	  processors and wish to have watchdog support enabled,
741	  say Y, otherwise say N.
742
743	  To compile this driver as a module, choose M here: the
744	  module will be called imx7ulp_wdt.
745
746config UX500_WATCHDOG
747	tristate "ST-Ericsson Ux500 watchdog"
748	depends on MFD_DB8500_PRCMU
749	select WATCHDOG_CORE
750	default y
751	help
752	  Say Y here to include Watchdog timer support for the watchdog
753	  existing in the prcmu of ST-Ericsson Ux500 series platforms.
754
755	  To compile this driver as a module, choose M here: the
756	  module will be called ux500_wdt.
757
758config RETU_WATCHDOG
759	tristate "Retu watchdog"
760	depends on MFD_RETU
761	select WATCHDOG_CORE
762	help
763	  Retu watchdog driver for Nokia Internet Tablets (770, N800,
764	  N810). At least on N800 the watchdog cannot be disabled, so
765	  this driver is essential and you should enable it.
766
767	  To compile this driver as a module, choose M here: the
768	  module will be called retu_wdt.
769
770config MOXART_WDT
771	tristate "MOXART watchdog"
772	depends on ARCH_MOXART || COMPILE_TEST
773	help
774	  Say Y here to include Watchdog timer support for the watchdog
775	  existing on the MOXA ART SoC series platforms.
776
777	  To compile this driver as a module, choose M here: the
778	  module will be called moxart_wdt.
779
780config ST_LPC_WATCHDOG
781	tristate "STMicroelectronics LPC Watchdog"
782	depends on ARCH_STI || COMPILE_TEST
783	depends on OF
784	select WATCHDOG_CORE
785	help
786	  Say Y here to include STMicroelectronics Low Power Controller
787	  (LPC) based Watchdog timer support.
788
789	  To compile this driver as a module, choose M here: the
790	  module will be called st_lpc_wdt.
791
792config TEGRA_WATCHDOG
793	tristate "Tegra watchdog"
794	depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
795	select WATCHDOG_CORE
796	help
797	  Say Y here to include support for the watchdog timer
798	  embedded in NVIDIA Tegra SoCs.
799
800	  To compile this driver as a module, choose M here: the
801	  module will be called tegra_wdt.
802
803config QCOM_WDT
804	tristate "QCOM watchdog"
805	depends on HAS_IOMEM
806	depends on ARCH_QCOM || COMPILE_TEST
807	select WATCHDOG_CORE
808	help
809	  Say Y here to include Watchdog timer support for the watchdog found
810	  on QCOM chipsets.  Currently supported targets are the MSM8960,
811	  APQ8064, and IPQ8064.
812
813	  To compile this driver as a module, choose M here: the
814	  module will be called qcom_wdt.
815
816config MESON_GXBB_WATCHDOG
817	tristate "Amlogic Meson GXBB SoCs watchdog support"
818	depends on ARCH_MESON || COMPILE_TEST
819	select WATCHDOG_CORE
820	help
821	  Say Y here to include support for the watchdog timer
822	  in Amlogic Meson GXBB SoCs.
823	  To compile this driver as a module, choose M here: the
824	  module will be called meson_gxbb_wdt.
825
826config MESON_WATCHDOG
827	tristate "Amlogic Meson SoCs watchdog support"
828	depends on ARCH_MESON || COMPILE_TEST
829	select WATCHDOG_CORE
830	help
831	  Say Y here to include support for the watchdog timer
832	  in Amlogic Meson SoCs.
833	  To compile this driver as a module, choose M here: the
834	  module will be called meson_wdt.
835
836config MEDIATEK_WATCHDOG
837	tristate "Mediatek SoCs watchdog support"
838	depends on ARCH_MEDIATEK || COMPILE_TEST
839	select WATCHDOG_CORE
840	select RESET_CONTROLLER
841	help
842	  Say Y here to include support for the watchdog timer
843	  in Mediatek SoCs.
844	  To compile this driver as a module, choose M here: the
845	  module will be called mtk_wdt.
846
847config DIGICOLOR_WATCHDOG
848	tristate "Conexant Digicolor SoCs watchdog support"
849	depends on ARCH_DIGICOLOR || COMPILE_TEST
850	select WATCHDOG_CORE
851	help
852	  Say Y here to include support for the watchdog timer
853	  in Conexant Digicolor SoCs.
854	  To compile this driver as a module, choose M here: the
855	  module will be called digicolor_wdt.
856
857config ARM_SMC_WATCHDOG
858	tristate "ARM Secure Monitor Call based watchdog support"
859	depends on ARM || ARM64
860	depends on OF
861	depends on HAVE_ARM_SMCCC
862	select WATCHDOG_CORE
863	help
864	  Say Y here to include support for a watchdog timer
865	  implemented by the EL3 Secure Monitor on ARM platforms.
866	  Requires firmware support.
867	  To compile this driver as a module, choose M here: the
868	  module will be called arm_smc_wdt.
869
870config LPC18XX_WATCHDOG
871	tristate "LPC18xx/43xx Watchdog"
872	depends on ARCH_LPC18XX || COMPILE_TEST
873	depends on HAS_IOMEM
874	select WATCHDOG_CORE
875	help
876	  Say Y here if to include support for the watchdog timer
877	  in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
878	  processors.
879	  To compile this driver as a module, choose M here: the
880	  module will be called lpc18xx_wdt.
881
882config RENESAS_WDT
883	tristate "Renesas WDT Watchdog"
884	depends on ARCH_RENESAS || COMPILE_TEST
885	select WATCHDOG_CORE
886	help
887	  This driver adds watchdog support for the integrated watchdogs in the
888	  Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
889
890config RENESAS_RZAWDT
891	tristate "Renesas RZ/A WDT Watchdog"
892	depends on ARCH_RENESAS || COMPILE_TEST
893	select WATCHDOG_CORE
894	help
895	  This driver adds watchdog support for the integrated watchdogs in the
896	  Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
897
898config ASPEED_WATCHDOG
899	tristate "Aspeed BMC watchdog support"
900	depends on ARCH_ASPEED || COMPILE_TEST
901	select WATCHDOG_CORE
902	help
903	  Say Y here to include support for the watchdog timer
904	  in Aspeed BMC SoCs.
905
906	  This driver is required to reboot the SoC.
907
908	  To compile this driver as a module, choose M here: the
909	  module will be called aspeed_wdt.
910
911config STM32_WATCHDOG
912	tristate "STM32 Independent WatchDoG (IWDG) support"
913	depends on ARCH_STM32
914	select WATCHDOG_CORE
915	default y
916	help
917	  Say Y here to include support for the watchdog timer
918	  in stm32 SoCs.
919
920	  To compile this driver as a module, choose M here: the
921	  module will be called stm32_iwdg.
922
923config STPMIC1_WATCHDOG
924	tristate "STPMIC1 PMIC watchdog support"
925	depends on MFD_STPMIC1
926	select WATCHDOG_CORE
927	help
928	  Say Y here to include watchdog support embedded into STPMIC1 PMIC.
929	  If the watchdog timer expires, stpmic1 will shut down all its power
930	  supplies.
931
932	  To compile this driver as a module, choose M here: the
933	  module will be called spmic1_wdt.
934
935config UNIPHIER_WATCHDOG
936	tristate "UniPhier watchdog support"
937	depends on ARCH_UNIPHIER || COMPILE_TEST
938	depends on OF && MFD_SYSCON
939	select WATCHDOG_CORE
940	help
941	  Say Y here to include support watchdog timer embedded
942	  into the UniPhier system.
943
944	  To compile this driver as a module, choose M here: the
945	  module will be called uniphier_wdt.
946
947config RTD119X_WATCHDOG
948	bool "Realtek RTD119x/RTD129x watchdog support"
949	depends on ARCH_REALTEK || COMPILE_TEST
950	depends on OF
951	select WATCHDOG_CORE
952	default ARCH_REALTEK
953	help
954	  Say Y here to include support for the watchdog timer in
955	  Realtek RTD1295 SoCs.
956
957config SPRD_WATCHDOG
958	tristate "Spreadtrum watchdog support"
959	depends on ARCH_SPRD || COMPILE_TEST
960	select WATCHDOG_CORE
961	help
962	  Say Y here to include watchdog timer supported
963	  by Spreadtrum system.
964
965config PM8916_WATCHDOG
966	tristate "QCOM PM8916 pmic watchdog"
967	depends on OF && MFD_SPMI_PMIC
968	select WATCHDOG_CORE
969	help
970	  Say Y here to include support watchdog timer embedded into the
971	  pm8916 module.
972
973config VISCONTI_WATCHDOG
974	tristate "Toshiba Visconti series watchdog support"
975	depends on ARCH_VISCONTI || COMPILE_TEST
976	select WATCHDOG_CORE
977	help
978	  Say Y here to include support for the watchdog timer in Toshiba
979	  Visconti SoCs.
980
981config MSC313E_WATCHDOG
982	tristate "MStar MSC313e watchdog"
983	depends on ARCH_MSTARV7 || COMPILE_TEST
984	select WATCHDOG_CORE
985	help
986	  Say Y here to include support for the Watchdog timer embedded
987	  into MStar MSC313e chips. This will reboot your system when the
988	  timeout is reached.
989
990	  To compile this driver as a module, choose M here: the
991	  module will be called msc313e_wdt.
992
993# X86 (i386 + ia64 + x86_64) Architecture
994
995config ACQUIRE_WDT
996	tristate "Acquire SBC Watchdog Timer"
997	depends on X86
998	help
999	  This is the driver for the hardware watchdog on Single Board
1000	  Computers produced by Acquire Inc (and others). This watchdog
1001	  simply watches your kernel to make sure it doesn't freeze, and if
1002	  it does, it reboots your computer after a certain amount of time.
1003
1004	  To compile this driver as a module, choose M here: the
1005	  module will be called acquirewdt.
1006
1007	  Most people will say N.
1008
1009config ADVANTECH_WDT
1010	tristate "Advantech SBC Watchdog Timer"
1011	depends on X86
1012	help
1013	  If you are configuring a Linux kernel for the Advantech single-board
1014	  computer, say `Y' here to support its built-in watchdog timer
1015	  feature. More information can be found at
1016	  <https://www.advantech.com.tw/products/>
1017
1018config ALIM1535_WDT
1019	tristate "ALi M1535 PMU Watchdog Timer"
1020	depends on X86 && PCI
1021	help
1022	  This is the driver for the hardware watchdog on the ALi M1535 PMU.
1023
1024	  To compile this driver as a module, choose M here: the
1025	  module will be called alim1535_wdt.
1026
1027	  Most people will say N.
1028
1029config ALIM7101_WDT
1030	tristate "ALi M7101 PMU Computer Watchdog"
1031	depends on PCI
1032	help
1033	  This is the driver for the hardware watchdog on the ALi M7101 PMU
1034	  as used in the x86 Cobalt servers and also found in some
1035	  SPARC Netra servers too.
1036
1037	  To compile this driver as a module, choose M here: the
1038	  module will be called alim7101_wdt.
1039
1040	  Most people will say N.
1041
1042config EBC_C384_WDT
1043	tristate "WinSystems EBC-C384 Watchdog Timer"
1044	depends on X86
1045	select ISA_BUS_API
1046	select WATCHDOG_CORE
1047	help
1048	  Enables watchdog timer support for the watchdog timer on the
1049	  WinSystems EBC-C384 motherboard. The timeout may be configured via
1050	  the timeout module parameter.
1051
1052config F71808E_WDT
1053	tristate "Fintek F718xx, F818xx Super I/O Watchdog"
1054	depends on X86
1055	help
1056	  This is the driver for the hardware watchdog on the Fintek F71808E,
1057	  F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and
1058	  F81866 Super I/O controllers.
1059
1060	  You can compile this driver directly into the kernel, or use
1061	  it as a module.  The module will be called f71808e_wdt.
1062
1063config SP5100_TCO
1064	tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
1065	depends on X86 && PCI
1066	select WATCHDOG_CORE
1067	help
1068	  Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
1069	  (Total Cost of Ownership) timer is a watchdog timer that will reboot
1070	  the machine after its expiration. The expiration time can be
1071	  configured with the "heartbeat" parameter.
1072
1073	  To compile this driver as a module, choose M here: the
1074	  module will be called sp5100_tco.
1075
1076config GEODE_WDT
1077	tristate "AMD Geode CS5535/CS5536 Watchdog"
1078	depends on CS5535_MFGPT
1079	help
1080	  This driver enables a watchdog capability built into the
1081	  CS5535/CS5536 companion chips for the AMD Geode GX and LX
1082	  processors.  This watchdog watches your kernel to make sure
1083	  it doesn't freeze, and if it does, it reboots your computer after
1084	  a certain amount of time.
1085
1086	  You can compile this driver directly into the kernel, or use
1087	  it as a module.  The module will be called geodewdt.
1088
1089config SC520_WDT
1090	tristate "AMD Elan SC520 processor Watchdog"
1091	depends on MELAN || COMPILE_TEST
1092	help
1093	  This is the driver for the hardware watchdog built in to the
1094	  AMD "Elan" SC520 microcomputer commonly used in embedded systems.
1095	  This watchdog simply watches your kernel to make sure it doesn't
1096	  freeze, and if it does, it reboots your computer after a certain
1097	  amount of time.
1098
1099	  You can compile this driver directly into the kernel, or use
1100	  it as a module.  The module will be called sc520_wdt.
1101
1102config SBC_FITPC2_WATCHDOG
1103	tristate "Compulab SBC-FITPC2 watchdog"
1104	depends on X86
1105	help
1106	  This is the driver for the built-in watchdog timer on the fit-PC2,
1107	  fit-PC2i, CM-iAM single-board computers made by Compulab.
1108
1109	  It's possible to enable the watchdog timer either from BIOS (F2) or
1110	  from booted Linux.
1111	  When the "Watchdog Timer Value" is enabled one can set 31-255 seconds
1112	  operational range.
1113
1114	  Entering BIOS setup temporarily disables watchdog operation regardless
1115	  of current state, so system will not be restarted while user is in
1116	  BIOS setup.
1117
1118	  Once the watchdog is enabled the system will be restarted every
1119	  "Watchdog Timer Value" period, so to prevent it user can restart or
1120	  disable the watchdog.
1121
1122	  To compile this driver as a module, choose M here: the
1123	  module will be called sbc_fitpc2_wdt.
1124
1125	  Most people will say N.
1126
1127config EUROTECH_WDT
1128	tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1129	depends on X86
1130	help
1131	  Enable support for the watchdog timer on the Eurotech CPU-1220 and
1132	  CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
1133	  information are at <http://www.eurotech.it/>.
1134
1135config IB700_WDT
1136	tristate "IB700 SBC Watchdog Timer"
1137	depends on X86
1138	help
1139	  This is the driver for the hardware watchdog on the IB700 Single
1140	  Board Computer produced by TMC Technology (www.tmc-uk.com). This
1141	  watchdog simply watches your kernel to make sure it doesn't freeze,
1142	  and if it does, it reboots your computer after a certain amount of time.
1143
1144	  This driver is like the WDT501 driver but for slightly different
1145	  hardware.
1146
1147	  To compile this driver as a module, choose M here: the
1148	  module will be called ib700wdt.
1149
1150	  Most people will say N.
1151
1152config IBMASR
1153	tristate "IBM Automatic Server Restart"
1154	depends on X86
1155	help
1156	  This is the driver for the IBM Automatic Server Restart watchdog
1157	  timer built-in into some eServer xSeries machines.
1158
1159	  To compile this driver as a module, choose M here: the
1160	  module will be called ibmasr.
1161
1162config WAFER_WDT
1163	tristate "ICP Single Board Computer Watchdog Timer"
1164	depends on X86
1165	help
1166	  This is a driver for the hardware watchdog on the ICP Single
1167	  Board Computer. This driver is working on (at least) the following
1168	  IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1169
1170	  To compile this driver as a module, choose M here: the
1171	  module will be called wafer5823wdt.
1172
1173config I6300ESB_WDT
1174	tristate "Intel 6300ESB Timer/Watchdog"
1175	depends on PCI
1176	select WATCHDOG_CORE
1177	help
1178	  Hardware driver for the watchdog timer built into the Intel
1179	  6300ESB controller hub.
1180
1181	  To compile this driver as a module, choose M here: the
1182	  module will be called i6300esb.
1183
1184config IE6XX_WDT
1185	tristate "Intel Atom E6xx Watchdog"
1186	depends on X86 && PCI
1187	select WATCHDOG_CORE
1188	select MFD_CORE
1189	select LPC_SCH
1190	help
1191	  Hardware driver for the watchdog timer built into the Intel
1192	  Atom E6XX (TunnelCreek) processor.
1193
1194	  To compile this driver as a module, choose M here: the
1195	  module will be called ie6xx_wdt.
1196
1197config INTEL_MID_WATCHDOG
1198	tristate "Intel MID Watchdog Timer"
1199	depends on X86_INTEL_MID
1200	select WATCHDOG_CORE
1201	help
1202	  Watchdog timer driver built into the Intel SCU for Intel MID
1203	  Platforms.
1204
1205	  This driver currently supports only the watchdog evolution
1206	  implementation in SCU, available for Merrifield generation.
1207
1208	  To compile this driver as a module, choose M here.
1209
1210config ITCO_WDT
1211	tristate "Intel TCO Timer/Watchdog"
1212	depends on (X86 || IA64) && PCI
1213	select WATCHDOG_CORE
1214	depends on I2C || I2C=n
1215	depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT
1216	select LPC_ICH if !EXPERT
1217	select I2C_I801 if !EXPERT && I2C
1218	help
1219	  Hardware driver for the intel TCO timer based watchdog devices.
1220	  These drivers are included in the Intel 82801 I/O Controller
1221	  Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1222	  controller hub.
1223
1224	  The TCO (Total Cost of Ownership) timer is a watchdog timer
1225	  that will reboot the machine after its second expiration. The
1226	  expiration time can be configured with the "heartbeat" parameter.
1227
1228	  On some motherboards the driver may fail to reset the chipset's
1229	  NO_REBOOT flag which prevents the watchdog from rebooting the
1230	  machine. If this is the case you will get a kernel message like
1231	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1232
1233	  To compile this driver as a module, choose M here: the
1234	  module will be called iTCO_wdt.
1235
1236config ITCO_VENDOR_SUPPORT
1237	bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1238	depends on ITCO_WDT
1239	help
1240	  Add vendor specific support to the intel TCO timer based watchdog
1241	  devices. At this moment we only have additional support for some
1242	  SuperMicro Inc. motherboards.
1243
1244config IT8712F_WDT
1245	tristate "IT8712F (Smart Guardian) Watchdog Timer"
1246	depends on X86
1247	help
1248	  This is the driver for the built-in watchdog timer on the IT8712F
1249	  Super I/0 chipset used on many motherboards.
1250
1251	  If the driver does not work, then make sure that the game port in
1252	  the BIOS is enabled.
1253
1254	  To compile this driver as a module, choose M here: the
1255	  module will be called it8712f_wdt.
1256
1257config IT87_WDT
1258	tristate "IT87 Watchdog Timer"
1259	depends on X86
1260	select WATCHDOG_CORE
1261	help
1262	  This is the driver for the hardware watchdog on the ITE IT8607,
1263	  IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1264	  IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1265	  IT8783 Super I/O chips.
1266
1267	  This watchdog simply watches your kernel to make sure it doesn't
1268	  freeze, and if it does, it reboots your computer after a certain
1269	  amount of time.
1270
1271	  To compile this driver as a module, choose M here: the module will
1272	  be called it87_wdt.
1273
1274config HP_WATCHDOG
1275	tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1276	select WATCHDOG_CORE
1277	depends on X86 && PCI
1278	help
1279	  A software monitoring watchdog and NMI handling driver. This driver
1280	  will detect lockups and provide a stack trace. This is a driver that
1281	  will only load on an HP ProLiant system with a minimum of iLO2 support.
1282	  To compile this driver as a module, choose M here: the module will be
1283	  called hpwdt.
1284
1285config HPWDT_NMI_DECODING
1286	bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1287	depends on HP_WATCHDOG
1288	default y
1289	help
1290	  Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1291	  "Generate NMI to System" virtual button.  When an NMI is claimed
1292	  by the driver, panic is called.
1293
1294config KEMPLD_WDT
1295	tristate "Kontron COM Watchdog Timer"
1296	depends on MFD_KEMPLD
1297	select WATCHDOG_CORE
1298	help
1299	  Support for the PLD watchdog on some Kontron ETX and COMexpress
1300	  (ETXexpress) modules
1301
1302	  This driver can also be built as a module. If so, the module will be
1303	  called kempld_wdt.
1304
1305config SC1200_WDT
1306	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1307	depends on X86
1308	help
1309	  This is a driver for National Semiconductor PC87307/PC97307 hardware
1310	  watchdog cards as found on the SC1200. This watchdog is mainly used
1311	  for power management purposes and can be used to power down the device
1312	  during inactivity periods (includes interrupt activity monitoring).
1313
1314	  To compile this driver as a module, choose M here: the
1315	  module will be called sc1200wdt.
1316
1317	  Most people will say N.
1318
1319config SCx200_WDT
1320	tristate "National Semiconductor SCx200 Watchdog"
1321	depends on SCx200 && PCI
1322	help
1323	  Enable the built-in watchdog timer support on the National
1324	  Semiconductor SCx200 processors.
1325
1326	  If compiled as a module, it will be called scx200_wdt.
1327
1328config PC87413_WDT
1329	tristate "NS PC87413 watchdog"
1330	depends on X86
1331	help
1332	  This is the driver for the hardware watchdog on the PC87413 chipset
1333	  This watchdog simply watches your kernel to make sure it doesn't
1334	  freeze, and if it does, it reboots your computer after a certain
1335	  amount of time.
1336
1337	  To compile this driver as a module, choose M here: the
1338	  module will be called pc87413_wdt.
1339
1340	  Most people will say N.
1341
1342config NV_TCO
1343	tristate "nVidia TCO Timer/Watchdog"
1344	depends on X86 && PCI
1345	help
1346	  Hardware driver for the TCO timer built into the nVidia Hub family
1347	  (such as the MCP51).  The TCO (Total Cost of Ownership) timer is a
1348	  watchdog timer that will reboot the machine after its second
1349	  expiration. The expiration time can be configured with the
1350	  "heartbeat" parameter.
1351
1352	  On some motherboards the driver may fail to reset the chipset's
1353	  NO_REBOOT flag which prevents the watchdog from rebooting the
1354	  machine. If this is the case you will get a kernel message like
1355	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1356
1357	  To compile this driver as a module, choose M here: the
1358	  module will be called nv_tco.
1359
1360config RDC321X_WDT
1361	tristate "RDC R-321x SoC watchdog"
1362	depends on X86_RDC321X || COMPILE_TEST
1363	depends on PCI
1364	help
1365	  This is the driver for the built in hardware watchdog
1366	  in the RDC R-321x SoC.
1367
1368	  To compile this driver as a module, choose M here: the
1369	  module will be called rdc321x_wdt.
1370
1371config 60XX_WDT
1372	tristate "SBC-60XX Watchdog Timer"
1373	depends on X86
1374	help
1375	  This driver can be used with the watchdog timer found on some
1376	  single board computers, namely the 6010 PII based computer.
1377	  It may well work with other cards.  It reads port 0x443 to enable
1378	  and re-set the watchdog timer, and reads port 0x45 to disable
1379	  the watchdog.  If you have a card that behave in similar ways,
1380	  you can probably make this driver work with your card as well.
1381
1382	  You can compile this driver directly into the kernel, or use
1383	  it as a module.  The module will be called sbc60xxwdt.
1384
1385config SBC8360_WDT
1386	tristate "SBC8360 Watchdog Timer"
1387	depends on X86_32
1388	help
1389
1390	  This is the driver for the hardware watchdog on the SBC8360 Single
1391	  Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1392
1393	  To compile this driver as a module, choose M here: the
1394	  module will be called sbc8360.
1395
1396	  Most people will say N.
1397
1398config SBC7240_WDT
1399	tristate "SBC Nano 7240 Watchdog Timer"
1400	depends on X86_32 && !UML
1401	help
1402	  This is the driver for the hardware watchdog found on the IEI
1403	  single board computers EPIC Nano 7240 (and likely others). This
1404	  watchdog simply watches your kernel to make sure it doesn't freeze,
1405	  and if it does, it reboots your computer after a certain amount of
1406	  time.
1407
1408	  To compile this driver as a module, choose M here: the
1409	  module will be called sbc7240_wdt.
1410
1411config CPU5_WDT
1412	tristate "SMA CPU5 Watchdog"
1413	depends on X86
1414	help
1415	  TBD.
1416	  To compile this driver as a module, choose M here: the
1417	  module will be called cpu5wdt.
1418
1419config SMSC_SCH311X_WDT
1420	tristate "SMSC SCH311X Watchdog Timer"
1421	depends on X86
1422	help
1423	  This is the driver for the hardware watchdog timer on the
1424	  SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1425	  (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1426	  serial ports).
1427
1428	  To compile this driver as a module, choose M here: the
1429	  module will be called sch311x_wdt.
1430
1431config SMSC37B787_WDT
1432	tristate "Winbond SMsC37B787 Watchdog Timer"
1433	depends on X86
1434	help
1435	  This is the driver for the hardware watchdog component on the
1436	  Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1437	  from Vision Systems and maybe others.
1438
1439	  This watchdog simply watches your kernel to make sure it doesn't
1440	  freeze, and if it does, it reboots your computer after a certain
1441	  amount of time.
1442
1443	  Usually a userspace daemon will notify the kernel WDT driver that
1444	  userspace is still alive, at regular intervals.
1445
1446	  To compile this driver as a module, choose M here: the
1447	  module will be called smsc37b787_wdt.
1448
1449	  Most people will say N.
1450
1451config TQMX86_WDT
1452	tristate "TQ-Systems TQMX86 Watchdog Timer"
1453	depends on X86
1454	select WATCHDOG_CORE
1455	help
1456	This is the driver for the hardware watchdog timer in the TQMX86 IO
1457	controller found on some of their ComExpress Modules.
1458
1459	To compile this driver as a module, choose M here; the module
1460	will be called tqmx86_wdt.
1461
1462	Most people will say N.
1463
1464config VIA_WDT
1465	tristate "VIA Watchdog Timer"
1466	depends on X86 && PCI
1467	select WATCHDOG_CORE
1468	help
1469	This is the driver for the hardware watchdog timer on VIA
1470	southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1471
1472	To compile this driver as a module, choose M here; the module
1473	will be called via_wdt.
1474
1475	Most people will say N.
1476
1477config W83627HF_WDT
1478	tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1479	depends on X86
1480	select WATCHDOG_CORE
1481	help
1482	  This is the driver for the hardware watchdog on the following
1483	  Super I/O chips.
1484		W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1485		W83637HF
1486		W83667HG/HG-B
1487		W83687THF
1488		W83697HF
1489		W83697UG
1490		NCT6775
1491		NCT6776
1492		NCT6779
1493		NCT6791
1494		NCT6792
1495		NCT6102D/04D/06D
1496		NCT6116D
1497
1498	  This watchdog simply watches your kernel to make sure it doesn't
1499	  freeze, and if it does, it reboots your computer after a certain
1500	  amount of time.
1501
1502	  To compile this driver as a module, choose M here: the
1503	  module will be called w83627hf_wdt.
1504
1505	  Most people will say N.
1506
1507config W83877F_WDT
1508	tristate "W83877F (EMACS) Watchdog Timer"
1509	depends on X86
1510	help
1511	  This is the driver for the hardware watchdog on the W83877F chipset
1512	  as used in EMACS PC-104 motherboards (and likely others).  This
1513	  watchdog simply watches your kernel to make sure it doesn't freeze,
1514	  and if it does, it reboots your computer after a certain amount of
1515	  time.
1516
1517	  To compile this driver as a module, choose M here: the
1518	  module will be called w83877f_wdt.
1519
1520	  Most people will say N.
1521
1522config W83977F_WDT
1523	tristate "W83977F (PCM-5335) Watchdog Timer"
1524	depends on X86
1525	help
1526	  This is the driver for the hardware watchdog on the W83977F I/O chip
1527	  as used in AAEON's PCM-5335 SBC (and likely others).  This
1528	  watchdog simply watches your kernel to make sure it doesn't freeze,
1529	  and if it does, it reboots your computer after a certain amount of
1530	  time.
1531
1532	  To compile this driver as a module, choose M here: the
1533	  module will be called w83977f_wdt.
1534
1535config MACHZ_WDT
1536	tristate "ZF MachZ Watchdog"
1537	depends on X86
1538	help
1539	  If you are using a ZF Micro MachZ processor, say Y here, otherwise
1540	  N.  This is the driver for the watchdog timer built-in on that
1541	  processor using ZF-Logic interface.  This watchdog simply watches
1542	  your kernel to make sure it doesn't freeze, and if it does, it
1543	  reboots your computer after a certain amount of time.
1544
1545	  To compile this driver as a module, choose M here: the
1546	  module will be called machzwd.
1547
1548config SBC_EPX_C3_WATCHDOG
1549	tristate "Winsystems SBC EPX-C3 watchdog"
1550	depends on X86
1551	help
1552	  This is the driver for the built-in watchdog timer on the EPX-C3
1553	  Single-board computer made by Winsystems, Inc.
1554
1555	  *Note*: This hardware watchdog is not probeable and thus there
1556	  is no way to know if writing to its IO address will corrupt
1557	  your system or have any real effect.  The only way to be sure
1558	  that this driver does what you want is to make sure you
1559	  are running it on an EPX-C3 from Winsystems with the watchdog
1560	  timer at IO address 0x1ee and 0x1ef.  It will write to both those
1561	  IO ports.  Basically, the assumption is made that if you compile
1562	  this driver into your kernel and/or load it as a module, that you
1563	  know what you are doing and that you are in fact running on an
1564	  EPX-C3 board!
1565
1566	  To compile this driver as a module, choose M here: the
1567	  module will be called sbc_epx_c3.
1568
1569config INTEL_MEI_WDT
1570	tristate "Intel MEI iAMT Watchdog"
1571	depends on INTEL_MEI && X86
1572	select WATCHDOG_CORE
1573	help
1574	  A device driver for the Intel MEI iAMT watchdog.
1575
1576	  The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1577	  Whenever the OS hangs or crashes, iAMT will send an event
1578	  to any subscriber to this event. The watchdog doesn't reset the
1579	  the platform.
1580
1581	  To compile this driver as a module, choose M here:
1582	  the module will be called mei_wdt.
1583
1584config NI903X_WDT
1585	tristate "NI 903x/913x Watchdog"
1586	depends on X86 && ACPI
1587	select WATCHDOG_CORE
1588	help
1589	  This is the driver for the watchdog timer on the National Instruments
1590	  903x/913x real-time controllers.
1591
1592	  To compile this driver as a module, choose M here: the module will be
1593	  called ni903x_wdt.
1594
1595config NIC7018_WDT
1596	tristate "NIC7018 Watchdog"
1597	depends on X86 && ACPI
1598	select WATCHDOG_CORE
1599	help
1600	  Support for National Instruments NIC7018 Watchdog.
1601
1602	  To compile this driver as a module, choose M here: the module will be
1603	  called nic7018_wdt.
1604
1605# M68K Architecture
1606
1607config M54xx_WATCHDOG
1608	tristate "MCF54xx watchdog support"
1609	depends on M548x
1610	help
1611	  To compile this driver as a module, choose M here: the
1612	  module will be called m54xx_wdt.
1613
1614# MicroBlaze Architecture
1615
1616# MIPS Architecture
1617
1618config ATH79_WDT
1619	tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1620	depends on ATH79 || (ARM && COMPILE_TEST)
1621	help
1622	  Hardware driver for the built-in watchdog timer on the Atheros
1623	  AR71XX/AR724X/AR913X SoCs.
1624
1625config BCM47XX_WDT
1626	tristate "Broadcom BCM47xx Watchdog Timer"
1627	depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1628	select WATCHDOG_CORE
1629	help
1630	  Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1631
1632config RC32434_WDT
1633	tristate "IDT RC32434 SoC Watchdog Timer"
1634	depends on MIKROTIK_RB532
1635	help
1636	  Hardware driver for the IDT RC32434 SoC built-in
1637	  watchdog timer.
1638
1639	  To compile this driver as a module, choose M here: the
1640	  module will be called rc32434_wdt.
1641
1642config INDYDOG
1643	tristate "Indy/I2 Hardware Watchdog"
1644	depends on SGI_HAS_INDYDOG
1645	help
1646	  Hardware driver for the Indy's/I2's watchdog. This is a
1647	  watchdog timer that will reboot the machine after a 60 second
1648	  timer expired and no process has written to /dev/watchdog during
1649	  that time.
1650
1651config JZ4740_WDT
1652	tristate "Ingenic jz4740 SoC hardware watchdog"
1653	depends on MIPS
1654	depends on COMMON_CLK
1655	select WATCHDOG_CORE
1656	select MFD_SYSCON
1657	help
1658	  Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1659
1660config WDT_MTX1
1661	tristate "MTX-1 Hardware Watchdog"
1662	depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1663	help
1664	  Hardware driver for the MTX-1 boards. This is a watchdog timer that
1665	  will reboot the machine after a 100 seconds timer expired.
1666
1667config SIBYTE_WDOG
1668	tristate "Sibyte SoC hardware watchdog"
1669	depends on CPU_SB1
1670	help
1671	  Watchdog driver for the built in watchdog hardware in Sibyte
1672	  SoC processors.  There are apparently two watchdog timers
1673	  on such processors; this driver supports only the first one,
1674	  because currently Linux only supports exporting one watchdog
1675	  to userspace.
1676
1677	  To compile this driver as a loadable module, choose M here.
1678	  The module will be called sb_wdog.
1679
1680config AR7_WDT
1681	tristate "TI AR7 Watchdog Timer"
1682	depends on AR7 || (MIPS && 32BIT && COMPILE_TEST)
1683	help
1684	  Hardware driver for the TI AR7 Watchdog Timer.
1685
1686config TXX9_WDT
1687	tristate "Toshiba TXx9 Watchdog Timer"
1688	depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
1689	select WATCHDOG_CORE
1690	help
1691	  Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1692
1693config OCTEON_WDT
1694	tristate "Cavium OCTEON SOC family Watchdog Timer"
1695	depends on CAVIUM_OCTEON_SOC
1696	default y
1697	select WATCHDOG_CORE
1698	select EXPORT_UASM if OCTEON_WDT = m
1699	help
1700	  Hardware driver for OCTEON's on chip watchdog timer.
1701	  Enables the watchdog for all cores running Linux. It
1702	  installs a NMI handler and pokes the watchdog based on an
1703	  interrupt.  On first expiration of the watchdog, the
1704	  interrupt handler pokes it.  The second expiration causes an
1705	  NMI that prints a message. The third expiration causes a
1706	  global soft reset.
1707
1708	  When userspace has /dev/watchdog open, no poking is done
1709	  from the first interrupt, it is then only poked when the
1710	  device is written.
1711
1712config BCM63XX_WDT
1713	tristate "Broadcom BCM63xx hardware watchdog"
1714	depends on BCM63XX
1715	help
1716	  Watchdog driver for the built in watchdog hardware in Broadcom
1717	  BCM63xx SoC.
1718
1719	  To compile this driver as a loadable module, choose M here.
1720	  The module will be called bcm63xx_wdt.
1721
1722config BCM2835_WDT
1723	tristate "Broadcom BCM2835 hardware watchdog"
1724	depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1725	select WATCHDOG_CORE
1726	help
1727	  Watchdog driver for the built in watchdog hardware in Broadcom
1728	  BCM2835 SoC.
1729
1730	  To compile this driver as a loadable module, choose M here.
1731	  The module will be called bcm2835_wdt.
1732
1733config BCM_KONA_WDT
1734	tristate "BCM Kona Watchdog"
1735	depends on ARCH_BCM_MOBILE || COMPILE_TEST
1736	select WATCHDOG_CORE
1737	help
1738	  Support for the watchdog timer on the following Broadcom BCM281xx
1739	  family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1740	  BCM28155 variants.
1741
1742	  Say 'Y' or 'M' here to enable the driver. The module will be called
1743	  bcm_kona_wdt.
1744
1745config BCM_KONA_WDT_DEBUG
1746	bool "DEBUGFS support for BCM Kona Watchdog"
1747	depends on BCM_KONA_WDT
1748	help
1749	  If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1750	  access to the driver's internal data structures as well as watchdog
1751	  timer hardware registres.
1752
1753	  If in doubt, say 'N'.
1754
1755config BCM7038_WDT
1756	tristate "BCM7038 Watchdog"
1757	select WATCHDOG_CORE
1758	depends on HAS_IOMEM
1759	depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1760	help
1761	 Watchdog driver for the built-in hardware in Broadcom 7038 and
1762	 later SoCs used in set-top boxes.  BCM7038 was made public
1763	 during the 2004 CES, and since then, many Broadcom chips use this
1764	 watchdog block, including some cable modem chips.
1765
1766config IMGPDC_WDT
1767	tristate "Imagination Technologies PDC Watchdog Timer"
1768	depends on HAS_IOMEM
1769	depends on MIPS || COMPILE_TEST
1770	select WATCHDOG_CORE
1771	help
1772	  Driver for Imagination Technologies PowerDown Controller
1773	  Watchdog Timer.
1774
1775	  To compile this driver as a loadable module, choose M here.
1776	  The module will be called imgpdc_wdt.
1777
1778config LANTIQ_WDT
1779	tristate "Lantiq SoC watchdog"
1780	depends on LANTIQ
1781	select WATCHDOG_CORE
1782	help
1783	  Hardware driver for the Lantiq SoC Watchdog Timer.
1784
1785config LOONGSON1_WDT
1786	tristate "Loongson1 SoC hardware watchdog"
1787	depends on MACH_LOONGSON32
1788	select WATCHDOG_CORE
1789	help
1790	  Hardware driver for the Loongson1 SoC Watchdog Timer.
1791
1792config RALINK_WDT
1793	tristate "Ralink SoC watchdog"
1794	select WATCHDOG_CORE
1795	depends on RALINK
1796	help
1797	  Hardware driver for the Ralink SoC Watchdog Timer.
1798
1799config MT7621_WDT
1800	tristate "Mediatek SoC watchdog"
1801	select WATCHDOG_CORE
1802	depends on SOC_MT7620 || SOC_MT7621
1803	help
1804	  Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1805
1806config PIC32_WDT
1807	tristate "Microchip PIC32 hardware watchdog"
1808	select WATCHDOG_CORE
1809	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1810	help
1811	  Watchdog driver for the built in watchdog hardware in a PIC32.
1812
1813	  Configuration bits must be set appropriately for the watchdog to be
1814	  controlled by this driver.
1815
1816	  To compile this driver as a loadable module, choose M here.
1817	  The module will be called pic32-wdt.
1818
1819config PIC32_DMT
1820	tristate "Microchip PIC32 Deadman Timer"
1821	select WATCHDOG_CORE
1822	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1823	help
1824	  Watchdog driver for PIC32 instruction fetch counting timer. This
1825	  specific timer is typically be used in mission critical and safety
1826	  critical applications, where any single failure of the software
1827	  functionality and sequencing must be detected.
1828
1829	  To compile this driver as a loadable module, choose M here.
1830	  The module will be called pic32-dmt.
1831
1832# PARISC Architecture
1833
1834# POWERPC Architecture
1835
1836config GEF_WDT
1837	tristate "GE Watchdog Timer"
1838	depends on GE_FPGA
1839	help
1840	  Watchdog timer found in a number of GE single board computers.
1841
1842config MPC5200_WDT
1843	bool "MPC52xx Watchdog Timer"
1844	depends on PPC_MPC52xx || COMPILE_TEST
1845	help
1846	  Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1847
1848config 8xxx_WDT
1849	tristate "MPC8xxx Platform Watchdog Timer"
1850	depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1851	select WATCHDOG_CORE
1852	help
1853	  This driver is for a SoC level watchdog that exists on some
1854	  Freescale PowerPC processors. So far this driver supports:
1855	  - MPC8xx watchdogs
1856	  - MPC83xx watchdogs
1857	  - MPC86xx watchdogs
1858
1859	  For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1860
1861config PIKA_WDT
1862	tristate "PIKA FPGA Watchdog"
1863	depends on WARP || (PPC64 && COMPILE_TEST)
1864	default y
1865	help
1866	  This enables the watchdog in the PIKA FPGA. Currently used on
1867	  the Warp platform.
1868
1869config BOOKE_WDT
1870	tristate "PowerPC Book-E Watchdog Timer"
1871	depends on BOOKE || 4xx
1872	select WATCHDOG_CORE
1873	help
1874	  Watchdog driver for PowerPC Book-E chips, such as the Freescale
1875	  MPC85xx SOCs and the IBM PowerPC 440.
1876
1877	  Please see Documentation/watchdog/watchdog-api.rst for
1878	  more information.
1879
1880config BOOKE_WDT_DEFAULT_TIMEOUT
1881	int "PowerPC Book-E Watchdog Timer Default Timeout"
1882	depends on BOOKE_WDT
1883	default 38 if PPC_FSL_BOOK3E
1884	range 0 63 if PPC_FSL_BOOK3E
1885	default 3 if !PPC_FSL_BOOK3E
1886	range 0 3 if !PPC_FSL_BOOK3E
1887	help
1888	  Select the default watchdog timer period to be used by the PowerPC
1889	  Book-E watchdog driver.  A watchdog "event" occurs when the bit
1890	  position represented by this number transitions from zero to one.
1891
1892	  For Freescale Book-E processors, this is a number between 0 and 63.
1893	  For other Book-E processors, this is a number between 0 and 3.
1894
1895	  The value can be overridden by the wdt_period command-line parameter.
1896
1897config MEN_A21_WDT
1898	tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1899	select WATCHDOG_CORE
1900	depends on GPIOLIB || COMPILE_TEST
1901	help
1902	  Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1903
1904	  The driver can also be built as a module. If so, the module will be
1905	  called mena21_wdt.
1906
1907	  If unsure select N here.
1908
1909# PPC64 Architecture
1910
1911config WATCHDOG_RTAS
1912	tristate "RTAS watchdog"
1913	depends on PPC_RTAS
1914	help
1915	  This driver adds watchdog support for the RTAS watchdog.
1916
1917	  To compile this driver as a module, choose M here. The module
1918	  will be called wdrtas.
1919
1920# S390 Architecture
1921
1922config DIAG288_WATCHDOG
1923	tristate "System z diag288 Watchdog"
1924	depends on S390
1925	select WATCHDOG_CORE
1926	help
1927	  IBM s/390 and zSeries machines running under z/VM 5.1 or later
1928	  provide a virtual watchdog timer to their guest that cause a
1929	  user define Control Program command to be executed after a
1930	  timeout.
1931	  LPAR provides a very similar interface. This driver handles
1932	  both.
1933
1934	  To compile this driver as a module, choose M here. The module
1935	  will be called diag288_wdt.
1936
1937# SUPERH (sh + sh64) Architecture
1938
1939config SH_WDT
1940	tristate "SuperH Watchdog"
1941	depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1942	select WATCHDOG_CORE
1943	help
1944	  This driver adds watchdog support for the integrated watchdog in the
1945	  SuperH processors. If you have one of these processors and wish
1946	  to have watchdog support enabled, say Y, otherwise say N.
1947
1948	  As a side note, saying Y here will automatically boost HZ to 1000
1949	  so that the timer has a chance to clear the overflow counter. On
1950	  slower systems (such as the SH-2 and SH-3) this will likely yield
1951	  some performance issues. As such, the WDT should be avoided here
1952	  unless it is absolutely necessary.
1953
1954	  To compile this driver as a module, choose M here: the
1955	  module will be called shwdt.
1956
1957# SPARC Architecture
1958
1959# SPARC64 Architecture
1960
1961config WATCHDOG_CP1XXX
1962	tristate "CP1XXX Hardware Watchdog support"
1963	depends on SPARC64 && PCI
1964	help
1965	  This is the driver for the hardware watchdog timers present on
1966	  Sun Microsystems CompactPCI models CP1400 and CP1500.
1967
1968	  To compile this driver as a module, choose M here: the
1969	  module will be called cpwatchdog.
1970
1971	  If you do not have a CompactPCI model CP1400 or CP1500, or
1972	  another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1973	  you should say N to this option.
1974
1975config WATCHDOG_RIO
1976	tristate "RIO Hardware Watchdog support"
1977	depends on SPARC64 && PCI
1978	help
1979	  Say Y here to support the hardware watchdog capability on Sun RIO
1980	  machines.  The watchdog timeout period is normally one minute but
1981	  can be changed with a boot-time parameter.
1982
1983config WATCHDOG_SUN4V
1984	tristate "Sun4v Watchdog support"
1985	select WATCHDOG_CORE
1986	depends on SPARC64
1987	help
1988	  Say Y here to support the hypervisor watchdog capability embedded
1989	  in the SPARC sun4v architecture.
1990
1991	  To compile this driver as a module, choose M here. The module will
1992	  be called sun4v_wdt.
1993
1994# XTENSA Architecture
1995
1996# Xen Architecture
1997
1998config XEN_WDT
1999	tristate "Xen Watchdog support"
2000	depends on XEN
2001	select WATCHDOG_CORE
2002	help
2003	  Say Y here to support the hypervisor watchdog capability provided
2004	  by Xen 4.0 and newer.  The watchdog timeout period is normally one
2005	  minute but can be changed with a boot-time parameter.
2006
2007config UML_WATCHDOG
2008	tristate "UML watchdog"
2009	depends on UML || COMPILE_TEST
2010
2011#
2012# ISA-based Watchdog Cards
2013#
2014
2015comment "ISA-based Watchdog Cards"
2016	depends on ISA
2017
2018config PCWATCHDOG
2019	tristate "Berkshire Products ISA-PC Watchdog"
2020	depends on ISA
2021	help
2022	  This is the driver for the Berkshire Products ISA-PC Watchdog card.
2023	  This card simply watches your kernel to make sure it doesn't freeze,
2024	  and if it does, it reboots your computer after a certain amount of
2025	  time. This driver is like the WDT501 driver but for different
2026	  hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>.
2027	  The PC watchdog cards can be ordered from <http://www.berkprod.com/>.
2028
2029	  To compile this driver as a module, choose M here: the
2030	  module will be called pcwd.
2031
2032	  Most people will say N.
2033
2034config MIXCOMWD
2035	tristate "Mixcom Watchdog"
2036	depends on ISA
2037	help
2038	  This is a driver for the Mixcom hardware watchdog cards.  This
2039	  watchdog simply watches your kernel to make sure it doesn't freeze,
2040	  and if it does, it reboots your computer after a certain amount of
2041	  time.
2042
2043	  To compile this driver as a module, choose M here: the
2044	  module will be called mixcomwd.
2045
2046	  Most people will say N.
2047
2048config WDT
2049	tristate "WDT Watchdog timer"
2050	depends on ISA
2051	help
2052	  If you have a WDT500P or WDT501P watchdog board, say Y here,
2053	  otherwise N. It is not possible to probe for this board, which means
2054	  that you have to inform the kernel about the IO port and IRQ that
2055	  is needed (you can do this via the io and irq parameters)
2056
2057	  To compile this driver as a module, choose M here: the
2058	  module will be called wdt.
2059
2060#
2061# PCI-based Watchdog Cards
2062#
2063
2064comment "PCI-based Watchdog Cards"
2065	depends on PCI
2066
2067config PCIPCWATCHDOG
2068	tristate "Berkshire Products PCI-PC Watchdog"
2069	depends on PCI
2070	help
2071	  This is the driver for the Berkshire Products PCI-PC Watchdog card.
2072	  This card simply watches your kernel to make sure it doesn't freeze,
2073	  and if it does, it reboots your computer after a certain amount of
2074	  time. The card can also monitor the internal temperature of the PC.
2075	  More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2076
2077	  To compile this driver as a module, choose M here: the
2078	  module will be called pcwd_pci.
2079
2080	  Most people will say N.
2081
2082config WDTPCI
2083	tristate "PCI-WDT500/501 Watchdog timer"
2084	depends on PCI
2085	help
2086	  If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2087
2088	  If you have a PCI-WDT501 watchdog board then you can enable the
2089	  temperature sensor by setting the type parameter to 501.
2090
2091	  If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2092	  can do this via the tachometer parameter. Only do this if you have a
2093	  fan tachometer actually set up.
2094
2095	  To compile this driver as a module, choose M here: the
2096	  module will be called wdt_pci.
2097
2098#
2099# USB-based Watchdog Cards
2100#
2101
2102comment "USB-based Watchdog Cards"
2103	depends on USB
2104
2105config USBPCWATCHDOG
2106	tristate "Berkshire Products USB-PC Watchdog"
2107	depends on USB
2108	help
2109	  This is the driver for the Berkshire Products USB-PC Watchdog card.
2110	  This card simply watches your kernel to make sure it doesn't freeze,
2111	  and if it does, it reboots your computer after a certain amount of
2112	  time. The card can also monitor the internal temperature of the PC.
2113	  More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2114
2115	  To compile this driver as a module, choose M here: the
2116	  module will be called pcwd_usb.
2117
2118	  Most people will say N.
2119
2120config KEEMBAY_WATCHDOG
2121	tristate "Intel Keem Bay SoC non-secure watchdog"
2122	depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST)
2123	select WATCHDOG_CORE
2124	help
2125	 This option enable support for an In-secure watchdog timer driver for
2126	 Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every
2127	 count unit. An interrupt will be triggered, when the count crosses
2128	 the threshold configured in the register.
2129
2130	 To compile this driver as a module, choose M here: the
2131	 module will be called keembay_wdt.
2132
2133endif # WATCHDOG
2134