xref: /openbmc/linux/drivers/watchdog/Kconfig (revision 9ac17575)
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	  <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can
26	  also monitor NFS connections and can reboot the machine when the process
27	  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
76comment "Watchdog Pretimeout Governors"
77
78config WATCHDOG_PRETIMEOUT_GOV
79	bool "Enable watchdog pretimeout governors"
80	depends on WATCHDOG_CORE
81	help
82	  The option allows to select watchdog pretimeout governors.
83
84config WATCHDOG_PRETIMEOUT_GOV_SEL
85	tristate
86	depends on WATCHDOG_PRETIMEOUT_GOV
87	default m
88	select WATCHDOG_PRETIMEOUT_GOV_PANIC if WATCHDOG_PRETIMEOUT_GOV_NOOP=n
89
90if WATCHDOG_PRETIMEOUT_GOV
91
92config WATCHDOG_PRETIMEOUT_GOV_NOOP
93	tristate "Noop watchdog pretimeout governor"
94	depends on WATCHDOG_CORE
95	default WATCHDOG_CORE
96	help
97	  Noop watchdog pretimeout governor, only an informational
98	  message is added to kernel log buffer.
99
100config WATCHDOG_PRETIMEOUT_GOV_PANIC
101	tristate "Panic watchdog pretimeout governor"
102	depends on WATCHDOG_CORE
103	default WATCHDOG_CORE
104	help
105	  Panic watchdog pretimeout governor, on watchdog pretimeout
106	  event put the kernel into panic.
107
108choice
109	prompt "Default Watchdog Pretimeout Governor"
110	default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
111	help
112	  This option selects a default watchdog pretimeout governor.
113	  The governor takes its action, if a watchdog is capable
114	  to report a pretimeout event.
115
116config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP
117	bool "noop"
118	depends on WATCHDOG_PRETIMEOUT_GOV_NOOP
119	help
120	  Use noop watchdog pretimeout governor by default. If noop
121	  governor is selected by a user, write a short message to
122	  the kernel log buffer and don't do any system changes.
123
124config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
125	bool "panic"
126	depends on WATCHDOG_PRETIMEOUT_GOV_PANIC
127	help
128	  Use panic watchdog pretimeout governor by default, if
129	  a watchdog pretimeout event happens, consider that
130	  a watchdog feeder is dead and reboot is unavoidable.
131
132endchoice
133
134endif # WATCHDOG_PRETIMEOUT_GOV
135
136#
137# General Watchdog drivers
138#
139
140comment "Watchdog Device Drivers"
141
142# Architecture Independent
143
144config SOFT_WATCHDOG
145	tristate "Software watchdog"
146	select WATCHDOG_CORE
147	help
148	  A software monitoring watchdog. This will fail to reboot your system
149	  from some situations that the hardware watchdog will recover
150	  from. Equally it's a lot cheaper to install.
151
152	  To compile this driver as a module, choose M here: the
153	  module will be called softdog.
154
155config SOFT_WATCHDOG_PRETIMEOUT
156	bool "Software watchdog pretimeout governor support"
157	depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV
158	help
159	  Enable this if you want to use pretimeout governors with the software
160	  watchdog. Be aware that governors might affect the watchdog because it
161	  is purely software, e.g. the panic governor will stall it!
162
163config BD70528_WATCHDOG
164	tristate "ROHM BD70528 PMIC Watchdog"
165	depends on MFD_ROHM_BD70528
166	select WATCHDOG_CORE
167	help
168	  Support for the watchdog in the ROHM BD70528 PMIC. Watchdog trigger
169	  cause system reset.
170
171	  Say Y here to include support for the ROHM BD70528 watchdog.
172	  Alternatively say M to compile the driver as a module,
173	  which will be called bd70528_wdt.
174
175config DA9052_WATCHDOG
176	tristate "Dialog DA9052 Watchdog"
177	depends on PMIC_DA9052 || COMPILE_TEST
178	select WATCHDOG_CORE
179	help
180	  Support for the watchdog in the DA9052 PMIC. Watchdog trigger
181	  cause system reset.
182
183	  Say Y here to include support for the DA9052 watchdog.
184	  Alternatively say M to compile the driver as a module,
185	  which will be called da9052_wdt.
186
187config DA9055_WATCHDOG
188	tristate "Dialog Semiconductor DA9055 Watchdog"
189	depends on MFD_DA9055 || COMPILE_TEST
190	select WATCHDOG_CORE
191	help
192	  If you say yes here you get support for watchdog on the Dialog
193	  Semiconductor DA9055 PMIC.
194
195	  This driver can also be built as a module.  If so, the module
196	  will be called da9055_wdt.
197
198config DA9063_WATCHDOG
199	tristate "Dialog DA9063 Watchdog"
200	depends on MFD_DA9063 || COMPILE_TEST
201	select WATCHDOG_CORE
202	help
203	  Support for the watchdog in the DA9063 PMIC.
204
205	  This driver can be built as a module. The module name is da9063_wdt.
206
207config DA9062_WATCHDOG
208	tristate "Dialog DA9062/61 Watchdog"
209	depends on MFD_DA9062 || COMPILE_TEST
210	depends on I2C
211	select WATCHDOG_CORE
212	help
213	  Support for the watchdog in the DA9062 and DA9061 PMICs.
214
215	  This driver can be built as a module. The module name is da9062_wdt.
216
217config GPIO_WATCHDOG
218	tristate "Watchdog device controlled through GPIO-line"
219	depends on OF_GPIO
220	select WATCHDOG_CORE
221	help
222	  If you say yes here you get support for watchdog device
223	  controlled through GPIO-line.
224
225config GPIO_WATCHDOG_ARCH_INITCALL
226	bool "Register the watchdog as early as possible"
227	depends on GPIO_WATCHDOG=y
228	help
229	  In some situations, the default initcall level (module_init)
230	  in not early enough in the boot process to avoid the watchdog
231	  to be triggered.
232	  If you say yes here, the initcall level would be raised to
233	  arch_initcall.
234	  If in doubt, say N.
235
236config MENF21BMC_WATCHDOG
237	tristate "MEN 14F021P00 BMC Watchdog"
238	depends on MFD_MENF21BMC || COMPILE_TEST
239	depends on I2C
240	select WATCHDOG_CORE
241	help
242	  Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
243
244	  This driver can also be built as a module. If so the module
245	  will be called menf21bmc_wdt.
246
247config MENZ069_WATCHDOG
248	tristate "MEN 16Z069 Watchdog"
249	depends on MCB
250	select WATCHDOG_CORE
251	help
252	  Say Y here to include support for the MEN 16Z069 Watchdog.
253
254	  This driver can also be built as a module. If so the module
255	  will be called menz069_wdt.
256
257config TANGOX_WATCHDOG
258	tristate "Sigma Designs SMP86xx/SMP87xx watchdog"
259	select WATCHDOG_CORE
260	depends on ARCH_TANGO || COMPILE_TEST
261	depends on HAS_IOMEM
262	help
263	  Support for the watchdog in Sigma Designs SMP86xx (tango3)
264	  and SMP87xx (tango4) family chips.
265
266	  This driver can be built as a module. The module name is tangox_wdt.
267
268config WDAT_WDT
269	tristate "ACPI Watchdog Action Table (WDAT)"
270	depends on ACPI
271	select WATCHDOG_CORE
272	select ACPI_WATCHDOG
273	help
274	  This driver adds support for systems with ACPI Watchdog Action
275	  Table (WDAT) table. Servers typically have this but it can be
276	  found on some desktop machines as well. This driver will take
277	  over the native iTCO watchdog driver found on many Intel CPUs.
278
279	  To compile this driver as module, choose M here: the module will
280	  be called wdat_wdt.
281
282config WM831X_WATCHDOG
283	tristate "WM831x watchdog"
284	depends on MFD_WM831X
285	select WATCHDOG_CORE
286	help
287	  Support for the watchdog in the WM831x AudioPlus PMICs.  When
288	  the watchdog triggers the system will be reset.
289
290config WM8350_WATCHDOG
291	tristate "WM8350 watchdog"
292	depends on MFD_WM8350
293	select WATCHDOG_CORE
294	help
295	  Support for the watchdog in the WM8350 AudioPlus PMIC.  When
296	  the watchdog triggers the system will be reset.
297
298config XILINX_WATCHDOG
299	tristate "Xilinx Watchdog timer"
300	depends on HAS_IOMEM
301	select WATCHDOG_CORE
302	help
303	  Watchdog driver for the xps_timebase_wdt ip core.
304
305	  To compile this driver as a module, choose M here: the
306	  module will be called of_xilinx_wdt.
307
308config ZIIRAVE_WATCHDOG
309	tristate "Zodiac RAVE Watchdog Timer"
310	depends on I2C
311	select WATCHDOG_CORE
312	help
313	  Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
314	  Processor.
315
316	  To compile this driver as a module, choose M here: the
317	  module will be called ziirave_wdt.
318
319config RAVE_SP_WATCHDOG
320	tristate "RAVE SP Watchdog timer"
321	depends on RAVE_SP_CORE
322	depends on NVMEM || !NVMEM
323	select WATCHDOG_CORE
324	help
325	  Support for the watchdog on RAVE SP device.
326
327config MLX_WDT
328	tristate "Mellanox Watchdog"
329	depends on MELLANOX_PLATFORM
330	select WATCHDOG_CORE
331	select REGMAP
332	help
333	  This is the driver for the hardware watchdog on Mellanox systems.
334	  If you are going to use it, say Y here, otherwise N.
335	  This driver can be used together with the watchdog daemon.
336	  It can also watch your kernel to make sure it doesn't freeze,
337	  and if it does, it reboots your system after a certain amount of
338	  time.
339
340	  To compile this driver as a module, choose M here: the
341	  module will be called mlx-wdt.
342
343# ALPHA Architecture
344
345# ARM Architecture
346
347config ARM_SP805_WATCHDOG
348	tristate "ARM SP805 Watchdog"
349	depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
350	select WATCHDOG_CORE
351	help
352	  ARM Primecell SP805 Watchdog timer. This will reboot your system when
353	  the timeout is reached.
354
355config ARM_SBSA_WATCHDOG
356	tristate "ARM SBSA Generic Watchdog"
357	depends on ARM64
358	depends on ARM_ARCH_TIMER
359	select WATCHDOG_CORE
360	help
361	  ARM SBSA Generic Watchdog has two stage timeouts:
362	  the first signal (WS0) is for alerting the system by interrupt,
363	  the second one (WS1) is a real hardware reset.
364	  More details: ARM DEN0029B - Server Base System Architecture (SBSA)
365
366	  This driver can operate ARM SBSA Generic Watchdog as a single stage
367	  or a two stages watchdog, it depends on the module parameter "action".
368
369	  Note: the maximum timeout in the two stages mode is half of that in
370	  the single stage mode.
371
372	  To compile this driver as module, choose M here: The module
373	  will be called sbsa_gwdt.
374
375config ARMADA_37XX_WATCHDOG
376	tristate "Armada 37xx watchdog"
377	depends on ARCH_MVEBU || COMPILE_TEST
378	select MFD_SYSCON
379	select WATCHDOG_CORE
380	help
381	   Say Y here to include support for the watchdog timer found on
382	   Marvell Armada 37xx SoCs.
383	   To compile this driver as a module, choose M here: the
384	   module will be called armada_37xx_wdt.
385
386config ASM9260_WATCHDOG
387	tristate "Alphascale ASM9260 watchdog"
388	depends on MACH_ASM9260 || COMPILE_TEST
389	depends on OF
390	select WATCHDOG_CORE
391	select RESET_CONTROLLER
392	help
393	  Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your
394	  system when the timeout is reached.
395
396config AT91RM9200_WATCHDOG
397	tristate "AT91RM9200 watchdog"
398	depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
399	help
400	  Watchdog timer embedded into AT91RM9200 chips. This will reboot your
401	  system when the timeout is reached.
402
403config AT91SAM9X_WATCHDOG
404	tristate "AT91SAM9X / AT91CAP9 watchdog"
405	depends on ARCH_AT91 || COMPILE_TEST
406	select WATCHDOG_CORE
407	help
408	  Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
409	  reboot your system when the timeout is reached.
410
411config SAMA5D4_WATCHDOG
412	tristate "Atmel SAMA5D4 Watchdog Timer"
413	depends on ARCH_AT91 || COMPILE_TEST
414	select WATCHDOG_CORE
415	help
416	  Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
417	  Its Watchdog Timer Mode Register can be written more than once.
418	  This will reboot your system when the timeout is reached.
419
420config CADENCE_WATCHDOG
421	tristate "Cadence Watchdog Timer"
422	depends on HAS_IOMEM
423	select WATCHDOG_CORE
424	help
425	  Say Y here if you want to include support for the watchdog
426	  timer in the Xilinx Zynq.
427
428config 21285_WATCHDOG
429	tristate "DC21285 watchdog"
430	depends on FOOTBRIDGE
431	help
432	  The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
433	  here if you wish to use this. Alternatively say M to compile the
434	  driver as a module, which will be called wdt285.
435
436	  This driver does not work on all machines. In particular, early CATS
437	  boards have hardware problems that will cause the machine to simply
438	  lock up if the watchdog fires.
439
440	  "If in doubt, leave it out" - say N.
441
442config 977_WATCHDOG
443	tristate "NetWinder WB83C977 watchdog"
444	depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
445	help
446	  Say Y here to include support for the WB977 watchdog included in
447	  NetWinder machines. Alternatively say M to compile the driver as
448	  a module, which will be called wdt977.
449
450	  Not sure? It's safe to say N.
451
452config FTWDT010_WATCHDOG
453	tristate "Faraday Technology FTWDT010 watchdog"
454	depends on ARM || COMPILE_TEST
455	select WATCHDOG_CORE
456	default ARCH_GEMINI
457	help
458	  Say Y here if to include support for the Faraday Technology
459	  FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
460	  family of devices.
461
462	  To compile this driver as a module, choose M here: the
463	  module will be called ftwdt010_wdt.
464
465config IXP4XX_WATCHDOG
466	tristate "IXP4xx Watchdog"
467	depends on ARCH_IXP4XX
468	help
469	  Say Y here if to include support for the watchdog timer
470	  in the Intel IXP4xx network processors. This driver can
471	  be built as a module by choosing M. The module will
472	  be called ixp4xx_wdt.
473
474	  Note: The internal IXP4xx watchdog does a soft CPU reset
475	  which doesn't reset any peripherals. There are circumstances
476	  where the watchdog will fail to reset the board correctly
477	  (e.g., if the boot ROM is in an unreadable state).
478
479	  Say N if you are unsure.
480
481config HAVE_S3C2410_WATCHDOG
482	bool
483	help
484	  This will include watchdog timer support for Samsung SoCs. If
485	  you want to include watchdog support for any machine, kindly
486	  select this in the respective mach-XXXX/Kconfig file.
487
488config S3C2410_WATCHDOG
489	tristate "S3C2410 Watchdog"
490	depends on HAVE_S3C2410_WATCHDOG || COMPILE_TEST
491	select WATCHDOG_CORE
492	select MFD_SYSCON if ARCH_EXYNOS
493	help
494	  Watchdog timer block in the Samsung SoCs. This will reboot
495	  the system when the timer expires with the watchdog enabled.
496
497	  The driver is limited by the speed of the system's PCLK
498	  signal, so with reasonably fast systems (PCLK around 50-66MHz)
499	  then watchdog intervals of over approximately 20seconds are
500	  unavailable.
501
502	  The driver can be built as a module by choosing M, and will
503	  be called s3c2410_wdt
504
505config SA1100_WATCHDOG
506	tristate "SA1100/PXA2xx watchdog"
507	depends on ARCH_SA1100 || ARCH_PXA
508	help
509	  Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
510	  reboot your system when timeout is reached.
511
512	  NOTE: once enabled, this timer cannot be disabled.
513
514	  To compile this driver as a module, choose M here: the
515	  module will be called sa1100_wdt.
516
517config DW_WATCHDOG
518	tristate "Synopsys DesignWare watchdog"
519	depends on HAS_IOMEM
520	select WATCHDOG_CORE
521	help
522	  Say Y here if to include support for the Synopsys DesignWare
523	  watchdog timer found in many chips.
524	  To compile this driver as a module, choose M here: the
525	  module will be called dw_wdt.
526
527config EP93XX_WATCHDOG
528	tristate "EP93xx Watchdog"
529	depends on ARCH_EP93XX || COMPILE_TEST
530	select WATCHDOG_CORE
531	help
532	  Say Y here if to include support for the watchdog timer
533	  embedded in the Cirrus Logic EP93xx family of devices.
534
535	  To compile this driver as a module, choose M here: the
536	  module will be called ep93xx_wdt.
537
538config OMAP_WATCHDOG
539	tristate "OMAP Watchdog"
540	depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
541	select WATCHDOG_CORE
542	help
543	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.  Say 'Y'
544	  here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
545
546config PNX4008_WATCHDOG
547	tristate "LPC32XX Watchdog"
548	depends on ARCH_LPC32XX || COMPILE_TEST
549	select WATCHDOG_CORE
550	help
551	  Say Y here if to include support for the watchdog timer
552	  in the LPC32XX processor.
553	  This driver can be built as a module by choosing M. The module
554	  will be called pnx4008_wdt.
555
556	  Say N if you are unsure.
557
558config IOP_WATCHDOG
559	tristate "IOP Watchdog"
560	depends on ARCH_IOP13XX
561	select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
562	help
563	  Say Y here if to include support for the watchdog timer
564	  in the Intel IOP3XX & IOP13XX I/O Processors.  This driver can
565	  be built as a module by choosing M. The module will
566	  be called iop_wdt.
567
568	  Note: The IOP13XX watchdog does an Internal Bus Reset which will
569	  affect both cores and the peripherals of the IOP.  The ATU-X
570	  and/or ATUe configuration registers will remain intact, but if
571	  operating as an Root Complex and/or Central Resource, the PCI-X
572	  and/or PCIe busses will also be reset.  THIS IS A VERY BIG HAMMER.
573
574config DAVINCI_WATCHDOG
575	tristate "DaVinci watchdog"
576	depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
577	select WATCHDOG_CORE
578	help
579	  Say Y here if to include support for the watchdog timer
580	  in the DaVinci DM644x/DM646x or Keystone processors.
581	  To compile this driver as a module, choose M here: the
582	  module will be called davinci_wdt.
583
584	  NOTE: once enabled, this timer cannot be disabled.
585	  Say N if you are unsure.
586
587config K3_RTI_WATCHDOG
588	tristate "Texas Instruments K3 RTI watchdog"
589	depends on ARCH_K3 || COMPILE_TEST
590	select WATCHDOG_CORE
591	help
592	  Say Y here if you want to include support for the K3 watchdog
593	  timer (RTI module) available in the K3 generation of processors.
594
595config ORION_WATCHDOG
596	tristate "Orion watchdog"
597	depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || (COMPILE_TEST && !ARCH_EBSA110)
598	depends on ARM
599	select WATCHDOG_CORE
600	help
601	  Say Y here if to include support for the watchdog timer
602	  in the Marvell Orion5x and Kirkwood ARM SoCs.
603	  To compile this driver as a module, choose M here: the
604	  module will be called orion_wdt.
605
606config RN5T618_WATCHDOG
607	tristate "Ricoh RN5T618 watchdog"
608	depends on MFD_RN5T618 || COMPILE_TEST
609	select WATCHDOG_CORE
610	help
611	  If you say yes here you get support for watchdog on the Ricoh
612	  RN5T618 PMIC.
613
614	  This driver can also be built as a module.  If so, the module
615	  will be called rn5t618_wdt.
616
617config SUNXI_WATCHDOG
618	tristate "Allwinner SoCs watchdog support"
619	depends on ARCH_SUNXI || COMPILE_TEST
620	select WATCHDOG_CORE
621	help
622	  Say Y here to include support for the watchdog timer
623	  in Allwinner SoCs.
624	  To compile this driver as a module, choose M here: the
625	  module will be called sunxi_wdt.
626
627config COH901327_WATCHDOG
628	bool "ST-Ericsson COH 901 327 watchdog"
629	depends on ARCH_U300 || (ARM && COMPILE_TEST)
630	default y if MACH_U300
631	select WATCHDOG_CORE
632	help
633	  Say Y here to include Watchdog timer support for the
634	  watchdog embedded into the ST-Ericsson U300 series platforms.
635	  This watchdog is used to reset the system and thus cannot be
636	  compiled as a module.
637
638config NPCM7XX_WATCHDOG
639	tristate "Nuvoton NPCM750 watchdog"
640	depends on ARCH_NPCM || COMPILE_TEST
641	default y if ARCH_NPCM7XX
642	select WATCHDOG_CORE
643	help
644	  Say Y here to include Watchdog timer support for the
645	  watchdog embedded into the NPCM7xx.
646	  This watchdog is used to reset the system and thus cannot be
647	  compiled as a module.
648
649config TWL4030_WATCHDOG
650	tristate "TWL4030 Watchdog"
651	depends on TWL4030_CORE
652	select WATCHDOG_CORE
653	help
654	  Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
655	  watchdog timer support for TWL4030 chips.
656
657config STMP3XXX_RTC_WATCHDOG
658	tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
659	depends on RTC_DRV_STMP || COMPILE_TEST
660	select WATCHDOG_CORE
661	help
662	  Say Y here to include support for the watchdog timer inside
663	  the RTC for the STMP37XX/378X or i.MX23/28 SoC.
664	  To compile this driver as a module, choose M here: the
665	  module will be called stmp3xxx_rtc_wdt.
666
667config TS4800_WATCHDOG
668	tristate "TS-4800 Watchdog"
669	depends on HAS_IOMEM && OF
670	depends on SOC_IMX51 || COMPILE_TEST
671	select WATCHDOG_CORE
672	select MFD_SYSCON
673	help
674	  Technologic Systems TS-4800 has watchdog timer implemented in
675	  an external FPGA. Say Y here if you want to support for the
676	  watchdog timer on TS-4800 board.
677
678config TS72XX_WATCHDOG
679	tristate "TS-72XX SBC Watchdog"
680	depends on MACH_TS72XX || COMPILE_TEST
681	help
682	  Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
683	  watchdog timer implemented in a external CPLD chip. Say Y here
684	  if you want to support for the watchdog timer on TS-72XX boards.
685
686	  To compile this driver as a module, choose M here: the
687	  module will be called ts72xx_wdt.
688
689config MAX63XX_WATCHDOG
690	tristate "Max63xx watchdog"
691	depends on HAS_IOMEM
692	select WATCHDOG_CORE
693	help
694	  Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
695
696config MAX77620_WATCHDOG
697	tristate "Maxim Max77620 Watchdog Timer"
698	depends on MFD_MAX77620 || COMPILE_TEST
699	select WATCHDOG_CORE
700	help
701	 This is the driver for the Max77620 watchdog timer.
702	 Say 'Y' here to enable the watchdog timer support for
703	 MAX77620 chips. To compile this driver as a module,
704	 choose M here: the module will be called max77620_wdt.
705
706config IMX2_WDT
707	tristate "IMX2+ Watchdog"
708	depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
709	select REGMAP_MMIO
710	select WATCHDOG_CORE
711	help
712	  This is the driver for the hardware watchdog
713	  on the Freescale IMX2 and later processors.
714	  If you have one of these processors and wish to have
715	  watchdog support enabled, say Y, otherwise say N.
716
717	  To compile this driver as a module, choose M here: the
718	  module will be called imx2_wdt.
719
720config IMX_SC_WDT
721	tristate "IMX SC Watchdog"
722	depends on HAVE_ARM_SMCCC
723	depends on IMX_SCU
724	select WATCHDOG_CORE
725	help
726	  This is the driver for the system controller watchdog
727	  on the NXP i.MX SoCs with system controller inside, the
728	  watchdog driver will call ARM SMC API and trap into
729	  ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
730	  will request system controller to execute the operations.
731	  If you have one of these processors and wish to have
732	  watchdog support enabled, say Y, otherwise say N.
733
734	  To compile this driver as a module, choose M here: the
735	  module will be called imx_sc_wdt.
736
737config IMX7ULP_WDT
738	tristate "IMX7ULP Watchdog"
739	depends on ARCH_MXC || COMPILE_TEST
740	select WATCHDOG_CORE
741	help
742	  This is the driver for the hardware watchdog on the Freescale
743	  IMX7ULP and later processors. If you have one of these
744	  processors and wish to have watchdog support enabled,
745	  say Y, otherwise say N.
746
747	  To compile this driver as a module, choose M here: the
748	  module will be called imx7ulp_wdt.
749
750config UX500_WATCHDOG
751	tristate "ST-Ericsson Ux500 watchdog"
752	depends on MFD_DB8500_PRCMU
753	select WATCHDOG_CORE
754	default y
755	help
756	  Say Y here to include Watchdog timer support for the watchdog
757	  existing in the prcmu of ST-Ericsson Ux500 series platforms.
758
759	  To compile this driver as a module, choose M here: the
760	  module will be called ux500_wdt.
761
762config RETU_WATCHDOG
763	tristate "Retu watchdog"
764	depends on MFD_RETU
765	select WATCHDOG_CORE
766	help
767	  Retu watchdog driver for Nokia Internet Tablets (770, N800,
768	  N810). At least on N800 the watchdog cannot be disabled, so
769	  this driver is essential and you should enable it.
770
771	  To compile this driver as a module, choose M here: the
772	  module will be called retu_wdt.
773
774config MOXART_WDT
775	tristate "MOXART watchdog"
776	depends on ARCH_MOXART || COMPILE_TEST
777	help
778	  Say Y here to include Watchdog timer support for the watchdog
779	  existing on the MOXA ART SoC series platforms.
780
781	  To compile this driver as a module, choose M here: the
782	  module will be called moxart_wdt.
783
784config SIRFSOC_WATCHDOG
785	tristate "SiRFSOC watchdog"
786	depends on ARCH_SIRF || COMPILE_TEST
787	select WATCHDOG_CORE
788	default y
789	help
790	  Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
791	  the watchdog triggers the system will be reset.
792
793config ST_LPC_WATCHDOG
794	tristate "STMicroelectronics LPC Watchdog"
795	depends on ARCH_STI || COMPILE_TEST
796	depends on OF
797	select WATCHDOG_CORE
798	help
799	  Say Y here to include STMicroelectronics Low Power Controller
800	  (LPC) based Watchdog timer support.
801
802	  To compile this driver as a module, choose M here: the
803	  module will be called st_lpc_wdt.
804
805config TEGRA_WATCHDOG
806	tristate "Tegra watchdog"
807	depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
808	select WATCHDOG_CORE
809	help
810	  Say Y here to include support for the watchdog timer
811	  embedded in NVIDIA Tegra SoCs.
812
813	  To compile this driver as a module, choose M here: the
814	  module will be called tegra_wdt.
815
816config QCOM_WDT
817	tristate "QCOM watchdog"
818	depends on HAS_IOMEM
819	depends on ARCH_QCOM || COMPILE_TEST
820	select WATCHDOG_CORE
821	help
822	  Say Y here to include Watchdog timer support for the watchdog found
823	  on QCOM chipsets.  Currently supported targets are the MSM8960,
824	  APQ8064, and IPQ8064.
825
826	  To compile this driver as a module, choose M here: the
827	  module will be called qcom_wdt.
828
829config MESON_GXBB_WATCHDOG
830	tristate "Amlogic Meson GXBB SoCs watchdog support"
831	depends on ARCH_MESON || COMPILE_TEST
832	select WATCHDOG_CORE
833	help
834	  Say Y here to include support for the watchdog timer
835	  in Amlogic Meson GXBB SoCs.
836	  To compile this driver as a module, choose M here: the
837	  module will be called meson_gxbb_wdt.
838
839config MESON_WATCHDOG
840	tristate "Amlogic Meson SoCs watchdog support"
841	depends on ARCH_MESON || COMPILE_TEST
842	select WATCHDOG_CORE
843	help
844	  Say Y here to include support for the watchdog timer
845	  in Amlogic Meson SoCs.
846	  To compile this driver as a module, choose M here: the
847	  module will be called meson_wdt.
848
849config MEDIATEK_WATCHDOG
850	tristate "Mediatek SoCs watchdog support"
851	depends on ARCH_MEDIATEK || COMPILE_TEST
852	select WATCHDOG_CORE
853	select RESET_CONTROLLER
854	help
855	  Say Y here to include support for the watchdog timer
856	  in Mediatek SoCs.
857	  To compile this driver as a module, choose M here: the
858	  module will be called mtk_wdt.
859
860config DIGICOLOR_WATCHDOG
861	tristate "Conexant Digicolor SoCs watchdog support"
862	depends on ARCH_DIGICOLOR || COMPILE_TEST
863	select WATCHDOG_CORE
864	help
865	  Say Y here to include support for the watchdog timer
866	  in Conexant Digicolor SoCs.
867	  To compile this driver as a module, choose M here: the
868	  module will be called digicolor_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 ATLAS7_WATCHDOG
883	tristate "CSRatlas7 watchdog"
884	depends on ARCH_ATLAS7 || COMPILE_TEST
885	help
886	  Say Y here to include Watchdog timer support for the watchdog
887	  existing on the CSRatlas7 series platforms.
888
889	  To compile this driver as a module, choose M here: the
890	  module will be called atlas7_wdt.
891
892config RENESAS_WDT
893	tristate "Renesas WDT Watchdog"
894	depends on ARCH_RENESAS || COMPILE_TEST
895	select WATCHDOG_CORE
896	help
897	  This driver adds watchdog support for the integrated watchdogs in the
898	  Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
899
900config RENESAS_RZAWDT
901	tristate "Renesas RZ/A WDT Watchdog"
902	depends on ARCH_RENESAS || COMPILE_TEST
903	select WATCHDOG_CORE
904	help
905	  This driver adds watchdog support for the integrated watchdogs in the
906	  Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
907
908config ASPEED_WATCHDOG
909	tristate "Aspeed BMC watchdog support"
910	depends on ARCH_ASPEED || COMPILE_TEST
911	select WATCHDOG_CORE
912	help
913	  Say Y here to include support for the watchdog timer
914	  in Aspeed BMC SoCs.
915
916	  This driver is required to reboot the SoC.
917
918	  To compile this driver as a module, choose M here: the
919	  module will be called aspeed_wdt.
920
921config ZX2967_WATCHDOG
922	tristate "ZTE zx2967 SoCs watchdog support"
923	depends on ARCH_ZX
924	select WATCHDOG_CORE
925	help
926	  Say Y here to include support for the watchdog timer
927	  in ZTE zx2967 SoCs.
928	  To compile this driver as a module, choose M here: the
929	  module will be called zx2967_wdt.
930
931config STM32_WATCHDOG
932	tristate "STM32 Independent WatchDoG (IWDG) support"
933	depends on ARCH_STM32
934	select WATCHDOG_CORE
935	default y
936	help
937	  Say Y here to include support for the watchdog timer
938	  in stm32 SoCs.
939
940	  To compile this driver as a module, choose M here: the
941	  module will be called stm32_iwdg.
942
943config STPMIC1_WATCHDOG
944	tristate "STPMIC1 PMIC watchdog support"
945	depends on MFD_STPMIC1
946	select WATCHDOG_CORE
947	help
948	  Say Y here to include watchdog support embedded into STPMIC1 PMIC.
949	  If the watchdog timer expires, stpmic1 will shut down all its power
950	  supplies.
951
952	  To compile this driver as a module, choose M here: the
953	  module will be called spmic1_wdt.
954
955config UNIPHIER_WATCHDOG
956	tristate "UniPhier watchdog support"
957	depends on ARCH_UNIPHIER || COMPILE_TEST
958	depends on OF && MFD_SYSCON
959	select WATCHDOG_CORE
960	help
961	  Say Y here to include support watchdog timer embedded
962	  into the UniPhier system.
963
964	  To compile this driver as a module, choose M here: the
965	  module will be called uniphier_wdt.
966
967config RTD119X_WATCHDOG
968	bool "Realtek RTD119x/RTD129x watchdog support"
969	depends on ARCH_REALTEK || COMPILE_TEST
970	depends on OF
971	select WATCHDOG_CORE
972	default ARCH_REALTEK
973	help
974	  Say Y here to include support for the watchdog timer in
975	  Realtek RTD1295 SoCs.
976
977config SPRD_WATCHDOG
978	tristate "Spreadtrum watchdog support"
979	depends on ARCH_SPRD || COMPILE_TEST
980	select WATCHDOG_CORE
981	help
982	  Say Y here to include watchdog timer supported
983	  by Spreadtrum system.
984
985config PM8916_WATCHDOG
986	tristate "QCOM PM8916 pmic watchdog"
987	depends on OF && MFD_SPMI_PMIC
988	select WATCHDOG_CORE
989	help
990	  Say Y here to include support watchdog timer embedded into the
991	  pm8916 module.
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	  <http://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 watchdog timer either from BIOS (F2) or from booted Linux.
1110	  When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
1111
1112	  Entering BIOS setup temporary disables watchdog operation regardless to current state,
1113	  so system will not be restarted while user in BIOS setup.
1114
1115	  Once watchdog was enabled the system will be restarted every
1116	  "Watchdog Timer Value" period, so to prevent it user can restart or
1117	  disable the watchdog.
1118
1119	  To compile this driver as a module, choose M here: the
1120	  module will be called sbc_fitpc2_wdt.
1121
1122	  Most people will say N.
1123
1124config EUROTECH_WDT
1125	tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1126	depends on X86
1127	help
1128	  Enable support for the watchdog timer on the Eurotech CPU-1220 and
1129	  CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
1130	  information are at <http://www.eurotech.it/>.
1131
1132config IB700_WDT
1133	tristate "IB700 SBC Watchdog Timer"
1134	depends on X86
1135	---help---
1136	  This is the driver for the hardware watchdog on the IB700 Single
1137	  Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
1138	  simply watches your kernel to make sure it doesn't freeze, and if
1139	  it does, it reboots your computer after a certain amount of time.
1140
1141	  This driver is like the WDT501 driver but for slightly different hardware.
1142
1143	  To compile this driver as a module, choose M here: the
1144	  module will be called ib700wdt.
1145
1146	  Most people will say N.
1147
1148config IBMASR
1149	tristate "IBM Automatic Server Restart"
1150	depends on X86
1151	help
1152	  This is the driver for the IBM Automatic Server Restart watchdog
1153	  timer built-in into some eServer xSeries machines.
1154
1155	  To compile this driver as a module, choose M here: the
1156	  module will be called ibmasr.
1157
1158config WAFER_WDT
1159	tristate "ICP Single Board Computer Watchdog Timer"
1160	depends on X86
1161	help
1162	  This is a driver for the hardware watchdog on the ICP Single
1163	  Board Computer. This driver is working on (at least) the following
1164	  IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1165
1166	  To compile this driver as a module, choose M here: the
1167	  module will be called wafer5823wdt.
1168
1169config I6300ESB_WDT
1170	tristate "Intel 6300ESB Timer/Watchdog"
1171	depends on PCI
1172	select WATCHDOG_CORE
1173	---help---
1174	  Hardware driver for the watchdog timer built into the Intel
1175	  6300ESB controller hub.
1176
1177	  To compile this driver as a module, choose M here: the
1178	  module will be called i6300esb.
1179
1180config IE6XX_WDT
1181	tristate "Intel Atom E6xx Watchdog"
1182	depends on X86 && PCI
1183	select WATCHDOG_CORE
1184	select MFD_CORE
1185	select LPC_SCH
1186	---help---
1187	  Hardware driver for the watchdog timer built into the Intel
1188	  Atom E6XX (TunnelCreek) processor.
1189
1190	  To compile this driver as a module, choose M here: the
1191	  module will be called ie6xx_wdt.
1192
1193config INTEL_SCU_WATCHDOG
1194	bool "Intel SCU Watchdog for Mobile Platforms"
1195	depends on X86_INTEL_MID
1196	---help---
1197	  Hardware driver for the watchdog time built into the Intel SCU
1198	  for Intel Mobile Platforms.
1199
1200	  To compile this driver as a module, choose M here.
1201
1202config INTEL_MID_WATCHDOG
1203	tristate "Intel MID Watchdog Timer"
1204	depends on X86_INTEL_MID
1205	select WATCHDOG_CORE
1206	---help---
1207	  Watchdog timer driver built into the Intel SCU for Intel MID
1208	  Platforms.
1209
1210	  This driver currently supports only the watchdog evolution
1211	  implementation in SCU, available for Merrifield generation.
1212
1213	  To compile this driver as a module, choose M here.
1214
1215config ITCO_WDT
1216	tristate "Intel TCO Timer/Watchdog"
1217	depends on (X86 || IA64) && PCI
1218	select WATCHDOG_CORE
1219	depends on I2C || I2C=n
1220	depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT
1221	select LPC_ICH if !EXPERT
1222	select I2C_I801 if !EXPERT && I2C
1223	---help---
1224	  Hardware driver for the intel TCO timer based watchdog devices.
1225	  These drivers are included in the Intel 82801 I/O Controller
1226	  Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1227	  controller hub.
1228
1229	  The TCO (Total Cost of Ownership) timer is a watchdog timer
1230	  that will reboot the machine after its second expiration. The
1231	  expiration time can be configured with the "heartbeat" parameter.
1232
1233	  On some motherboards the driver may fail to reset the chipset's
1234	  NO_REBOOT flag which prevents the watchdog from rebooting the
1235	  machine. If this is the case you will get a kernel message like
1236	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1237
1238	  To compile this driver as a module, choose M here: the
1239	  module will be called iTCO_wdt.
1240
1241config ITCO_VENDOR_SUPPORT
1242	bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1243	depends on ITCO_WDT
1244	---help---
1245	  Add vendor specific support to the intel TCO timer based watchdog
1246	  devices. At this moment we only have additional support for some
1247	  SuperMicro Inc. motherboards.
1248
1249config IT8712F_WDT
1250	tristate "IT8712F (Smart Guardian) Watchdog Timer"
1251	depends on X86
1252	---help---
1253	  This is the driver for the built-in watchdog timer on the IT8712F
1254	  Super I/0 chipset used on many motherboards.
1255
1256	  If the driver does not work, then make sure that the game port in
1257	  the BIOS is enabled.
1258
1259	  To compile this driver as a module, choose M here: the
1260	  module will be called it8712f_wdt.
1261
1262config IT87_WDT
1263	tristate "IT87 Watchdog Timer"
1264	depends on X86
1265	select WATCHDOG_CORE
1266	---help---
1267	  This is the driver for the hardware watchdog on the ITE IT8607,
1268	  IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1269	  IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1270	  IT8783 Super I/O chips.
1271
1272	  This watchdog simply watches your kernel to make sure it doesn't
1273	  freeze, and if it does, it reboots your computer after a certain
1274	  amount of time.
1275
1276	  To compile this driver as a module, choose M here: the module will
1277	  be called it87_wdt.
1278
1279config HP_WATCHDOG
1280	tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1281	select WATCHDOG_CORE
1282	depends on X86 && PCI
1283	help
1284	  A software monitoring watchdog and NMI handling driver. This driver
1285	  will detect lockups and provide a stack trace. This is a driver that
1286	  will only load on an HP ProLiant system with a minimum of iLO2 support.
1287	  To compile this driver as a module, choose M here: the module will be
1288	  called hpwdt.
1289
1290config HPWDT_NMI_DECODING
1291	bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1292	depends on HP_WATCHDOG
1293	default y
1294	help
1295	  Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1296	  "Generate NMI to System" virtual button.  When an NMI is claimed
1297	  by the driver, panic is called.
1298
1299config KEMPLD_WDT
1300	tristate "Kontron COM Watchdog Timer"
1301	depends on MFD_KEMPLD
1302	select WATCHDOG_CORE
1303	help
1304	  Support for the PLD watchdog on some Kontron ETX and COMexpress
1305	  (ETXexpress) modules
1306
1307	  This driver can also be built as a module. If so, the module will be
1308	  called kempld_wdt.
1309
1310config SC1200_WDT
1311	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1312	depends on X86
1313	help
1314	  This is a driver for National Semiconductor PC87307/PC97307 hardware
1315	  watchdog cards as found on the SC1200. This watchdog is mainly used
1316	  for power management purposes and can be used to power down the device
1317	  during inactivity periods (includes interrupt activity monitoring).
1318
1319	  To compile this driver as a module, choose M here: the
1320	  module will be called sc1200wdt.
1321
1322	  Most people will say N.
1323
1324config SCx200_WDT
1325	tristate "National Semiconductor SCx200 Watchdog"
1326	depends on SCx200 && PCI
1327	help
1328	  Enable the built-in watchdog timer support on the National
1329	  Semiconductor SCx200 processors.
1330
1331	  If compiled as a module, it will be called scx200_wdt.
1332
1333config PC87413_WDT
1334	tristate "NS PC87413 watchdog"
1335	depends on X86
1336	---help---
1337	  This is the driver for the hardware watchdog on the PC87413 chipset
1338	  This watchdog simply watches your kernel to make sure it doesn't
1339	  freeze, and if it does, it reboots your computer after a certain
1340	  amount of time.
1341
1342	  To compile this driver as a module, choose M here: the
1343	  module will be called pc87413_wdt.
1344
1345	  Most people will say N.
1346
1347config NV_TCO
1348	tristate "nVidia TCO Timer/Watchdog"
1349	depends on X86 && PCI
1350	---help---
1351	  Hardware driver for the TCO timer built into the nVidia Hub family
1352	  (such as the MCP51).  The TCO (Total Cost of Ownership) timer is a
1353	  watchdog timer that will reboot the machine after its second
1354	  expiration. The expiration time can be configured with the
1355	  "heartbeat" parameter.
1356
1357	  On some motherboards the driver may fail to reset the chipset's
1358	  NO_REBOOT flag which prevents the watchdog from rebooting the
1359	  machine. If this is the case you will get a kernel message like
1360	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1361
1362	  To compile this driver as a module, choose M here: the
1363	  module will be called nv_tco.
1364
1365config RDC321X_WDT
1366	tristate "RDC R-321x SoC watchdog"
1367	depends on X86_RDC321X || COMPILE_TEST
1368	depends on PCI
1369	help
1370	  This is the driver for the built in hardware watchdog
1371	  in the RDC R-321x SoC.
1372
1373	  To compile this driver as a module, choose M here: the
1374	  module will be called rdc321x_wdt.
1375
1376config 60XX_WDT
1377	tristate "SBC-60XX Watchdog Timer"
1378	depends on X86
1379	help
1380	  This driver can be used with the watchdog timer found on some
1381	  single board computers, namely the 6010 PII based computer.
1382	  It may well work with other cards.  It reads port 0x443 to enable
1383	  and re-set the watchdog timer, and reads port 0x45 to disable
1384	  the watchdog.  If you have a card that behave in similar ways,
1385	  you can probably make this driver work with your card as well.
1386
1387	  You can compile this driver directly into the kernel, or use
1388	  it as a module.  The module will be called sbc60xxwdt.
1389
1390config SBC8360_WDT
1391	tristate "SBC8360 Watchdog Timer"
1392	depends on X86_32
1393	---help---
1394
1395	  This is the driver for the hardware watchdog on the SBC8360 Single
1396	  Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1397
1398	  To compile this driver as a module, choose M here: the
1399	  module will be called sbc8360.
1400
1401	  Most people will say N.
1402
1403config SBC7240_WDT
1404	tristate "SBC Nano 7240 Watchdog Timer"
1405	depends on X86_32 && !UML
1406	---help---
1407	  This is the driver for the hardware watchdog found on the IEI
1408	  single board computers EPIC Nano 7240 (and likely others). This
1409	  watchdog simply watches your kernel to make sure it doesn't freeze,
1410	  and if it does, it reboots your computer after a certain amount of
1411	  time.
1412
1413	  To compile this driver as a module, choose M here: the
1414	  module will be called sbc7240_wdt.
1415
1416config CPU5_WDT
1417	tristate "SMA CPU5 Watchdog"
1418	depends on X86
1419	---help---
1420	  TBD.
1421	  To compile this driver as a module, choose M here: the
1422	  module will be called cpu5wdt.
1423
1424config SMSC_SCH311X_WDT
1425	tristate "SMSC SCH311X Watchdog Timer"
1426	depends on X86
1427	---help---
1428	  This is the driver for the hardware watchdog timer on the
1429	  SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1430	  (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1431	  serial ports).
1432
1433	  To compile this driver as a module, choose M here: the
1434	  module will be called sch311x_wdt.
1435
1436config SMSC37B787_WDT
1437	tristate "Winbond SMsC37B787 Watchdog Timer"
1438	depends on X86
1439	---help---
1440	  This is the driver for the hardware watchdog component on the
1441	  Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1442	  from Vision Systems and maybe others.
1443
1444	  This watchdog simply watches your kernel to make sure it doesn't
1445	  freeze, and if it does, it reboots your computer after a certain
1446	  amount of time.
1447
1448	  Usually a userspace daemon will notify the kernel WDT driver that
1449	  userspace is still alive, at regular intervals.
1450
1451	  To compile this driver as a module, choose M here: the
1452	  module will be called smsc37b787_wdt.
1453
1454	  Most people will say N.
1455
1456config TQMX86_WDT
1457	tristate "TQ-Systems TQMX86 Watchdog Timer"
1458	depends on X86
1459	select WATCHDOG_CORE
1460	help
1461	This is the driver for the hardware watchdog timer in the TQMX86 IO
1462	controller found on some of their ComExpress Modules.
1463
1464	To compile this driver as a module, choose M here; the module
1465	will be called tqmx86_wdt.
1466
1467	Most people will say N.
1468
1469config VIA_WDT
1470	tristate "VIA Watchdog Timer"
1471	depends on X86 && PCI
1472	select WATCHDOG_CORE
1473	---help---
1474	This is the driver for the hardware watchdog timer on VIA
1475	southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1476
1477	To compile this driver as a module, choose M here; the module
1478	will be called via_wdt.
1479
1480	Most people will say N.
1481
1482config W83627HF_WDT
1483	tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1484	depends on X86
1485	select WATCHDOG_CORE
1486	---help---
1487	  This is the driver for the hardware watchdog on the following
1488	  Super I/O chips.
1489		W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1490		W83637HF
1491		W83667HG/HG-B
1492		W83687THF
1493		W83697HF
1494		W83697UG
1495		NCT6775
1496		NCT6776
1497		NCT6779
1498		NCT6791
1499		NCT6792
1500		NCT6102D/04D/06D
1501		NCT6116D
1502
1503	  This watchdog simply watches your kernel to make sure it doesn't
1504	  freeze, and if it does, it reboots your computer after a certain
1505	  amount of time.
1506
1507	  To compile this driver as a module, choose M here: the
1508	  module will be called w83627hf_wdt.
1509
1510	  Most people will say N.
1511
1512config W83877F_WDT
1513	tristate "W83877F (EMACS) Watchdog Timer"
1514	depends on X86
1515	---help---
1516	  This is the driver for the hardware watchdog on the W83877F chipset
1517	  as used in EMACS PC-104 motherboards (and likely others).  This
1518	  watchdog simply watches your kernel to make sure it doesn't freeze,
1519	  and if it does, it reboots your computer after a certain amount of
1520	  time.
1521
1522	  To compile this driver as a module, choose M here: the
1523	  module will be called w83877f_wdt.
1524
1525	  Most people will say N.
1526
1527config W83977F_WDT
1528	tristate "W83977F (PCM-5335) Watchdog Timer"
1529	depends on X86
1530	---help---
1531	  This is the driver for the hardware watchdog on the W83977F I/O chip
1532	  as used in AAEON's PCM-5335 SBC (and likely others).  This
1533	  watchdog simply watches your kernel to make sure it doesn't freeze,
1534	  and if it does, it reboots your computer after a certain amount of
1535	  time.
1536
1537	  To compile this driver as a module, choose M here: the
1538	  module will be called w83977f_wdt.
1539
1540config MACHZ_WDT
1541	tristate "ZF MachZ Watchdog"
1542	depends on X86
1543	---help---
1544	  If you are using a ZF Micro MachZ processor, say Y here, otherwise
1545	  N.  This is the driver for the watchdog timer built-in on that
1546	  processor using ZF-Logic interface.  This watchdog simply watches
1547	  your kernel to make sure it doesn't freeze, and if it does, it
1548	  reboots your computer after a certain amount of time.
1549
1550	  To compile this driver as a module, choose M here: the
1551	  module will be called machzwd.
1552
1553config SBC_EPX_C3_WATCHDOG
1554	tristate "Winsystems SBC EPX-C3 watchdog"
1555	depends on X86
1556	---help---
1557	  This is the driver for the built-in watchdog timer on the EPX-C3
1558	  Single-board computer made by Winsystems, Inc.
1559
1560	  *Note*: This hardware watchdog is not probeable and thus there
1561	  is no way to know if writing to its IO address will corrupt
1562	  your system or have any real effect.  The only way to be sure
1563	  that this driver does what you want is to make sure you
1564	  are running it on an EPX-C3 from Winsystems with the watchdog
1565	  timer at IO address 0x1ee and 0x1ef.  It will write to both those
1566	  IO ports.  Basically, the assumption is made that if you compile
1567	  this driver into your kernel and/or load it as a module, that you
1568	  know what you are doing and that you are in fact running on an
1569	  EPX-C3 board!
1570
1571	  To compile this driver as a module, choose M here: the
1572	  module will be called sbc_epx_c3.
1573
1574config INTEL_MEI_WDT
1575	tristate "Intel MEI iAMT Watchdog"
1576	depends on INTEL_MEI && X86
1577	select WATCHDOG_CORE
1578	---help---
1579	  A device driver for the Intel MEI iAMT watchdog.
1580
1581	  The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1582	  Whenever the OS hangs or crashes, iAMT will send an event
1583	  to any subscriber to this event. The watchdog doesn't reset the
1584	  the platform.
1585
1586	  To compile this driver as a module, choose M here:
1587	  the module will be called mei_wdt.
1588
1589config NI903X_WDT
1590	tristate "NI 903x/913x Watchdog"
1591	depends on X86 && ACPI
1592	select WATCHDOG_CORE
1593	---help---
1594	  This is the driver for the watchdog timer on the National Instruments
1595	  903x/913x real-time controllers.
1596
1597	  To compile this driver as a module, choose M here: the module will be
1598	  called ni903x_wdt.
1599
1600config NIC7018_WDT
1601	tristate "NIC7018 Watchdog"
1602	depends on X86 && ACPI
1603	select WATCHDOG_CORE
1604	---help---
1605	  Support for National Instruments NIC7018 Watchdog.
1606
1607	  To compile this driver as a module, choose M here: the module will be
1608	  called nic7018_wdt.
1609
1610# M68K Architecture
1611
1612config M54xx_WATCHDOG
1613	tristate "MCF54xx watchdog support"
1614	depends on M548x
1615	help
1616	  To compile this driver as a module, choose M here: the
1617	  module will be called m54xx_wdt.
1618
1619# MicroBlaze Architecture
1620
1621# MIPS Architecture
1622
1623config ATH79_WDT
1624	tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1625	depends on ATH79 || (ARM && COMPILE_TEST)
1626	help
1627	  Hardware driver for the built-in watchdog timer on the Atheros
1628	  AR71XX/AR724X/AR913X SoCs.
1629
1630config BCM47XX_WDT
1631	tristate "Broadcom BCM47xx Watchdog Timer"
1632	depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1633	select WATCHDOG_CORE
1634	help
1635	  Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1636
1637config RC32434_WDT
1638	tristate "IDT RC32434 SoC Watchdog Timer"
1639	depends on MIKROTIK_RB532
1640	help
1641	  Hardware driver for the IDT RC32434 SoC built-in
1642	  watchdog timer.
1643
1644	  To compile this driver as a module, choose M here: the
1645	  module will be called rc32434_wdt.
1646
1647config INDYDOG
1648	tristate "Indy/I2 Hardware Watchdog"
1649	depends on SGI_HAS_INDYDOG
1650	help
1651	  Hardware driver for the Indy's/I2's watchdog. This is a
1652	  watchdog timer that will reboot the machine after a 60 second
1653	  timer expired and no process has written to /dev/watchdog during
1654	  that time.
1655
1656config JZ4740_WDT
1657	tristate "Ingenic jz4740 SoC hardware watchdog"
1658	depends on MIPS
1659	depends on COMMON_CLK
1660	select WATCHDOG_CORE
1661	select MFD_SYSCON
1662	help
1663	  Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1664
1665config WDT_MTX1
1666	tristate "MTX-1 Hardware Watchdog"
1667	depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1668	help
1669	  Hardware driver for the MTX-1 boards. This is a watchdog timer that
1670	  will reboot the machine after a 100 seconds timer expired.
1671
1672config PNX833X_WDT
1673	tristate "PNX833x Hardware Watchdog"
1674	depends on SOC_PNX8335
1675	depends on BROKEN
1676	help
1677	  Hardware driver for the PNX833x's watchdog. This is a
1678	  watchdog timer that will reboot the machine after a programmable
1679	  timer has expired and no process has written to /dev/watchdog during
1680	  that time.
1681
1682config SIBYTE_WDOG
1683	tristate "Sibyte SoC hardware watchdog"
1684	depends on CPU_SB1 || (MIPS && COMPILE_TEST)
1685	help
1686	  Watchdog driver for the built in watchdog hardware in Sibyte
1687	  SoC processors.  There are apparently two watchdog timers
1688	  on such processors; this driver supports only the first one,
1689	  because currently Linux only supports exporting one watchdog
1690	  to userspace.
1691
1692	  To compile this driver as a loadable module, choose M here.
1693	  The module will be called sb_wdog.
1694
1695config AR7_WDT
1696	tristate "TI AR7 Watchdog Timer"
1697	depends on AR7 || (MIPS && COMPILE_TEST)
1698	help
1699	  Hardware driver for the TI AR7 Watchdog Timer.
1700
1701config TXX9_WDT
1702	tristate "Toshiba TXx9 Watchdog Timer"
1703	depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
1704	select WATCHDOG_CORE
1705	help
1706	  Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1707
1708config OCTEON_WDT
1709	tristate "Cavium OCTEON SOC family Watchdog Timer"
1710	depends on CAVIUM_OCTEON_SOC
1711	default y
1712	select WATCHDOG_CORE
1713	select EXPORT_UASM if OCTEON_WDT = m
1714	help
1715	  Hardware driver for OCTEON's on chip watchdog timer.
1716	  Enables the watchdog for all cores running Linux. It
1717	  installs a NMI handler and pokes the watchdog based on an
1718	  interrupt.  On first expiration of the watchdog, the
1719	  interrupt handler pokes it.  The second expiration causes an
1720	  NMI that prints a message. The third expiration causes a
1721	  global soft reset.
1722
1723	  When userspace has /dev/watchdog open, no poking is done
1724	  from the first interrupt, it is then only poked when the
1725	  device is written.
1726
1727config BCM63XX_WDT
1728	tristate "Broadcom BCM63xx hardware watchdog"
1729	depends on BCM63XX
1730	help
1731	  Watchdog driver for the built in watchdog hardware in Broadcom
1732	  BCM63xx SoC.
1733
1734	  To compile this driver as a loadable module, choose M here.
1735	  The module will be called bcm63xx_wdt.
1736
1737config BCM2835_WDT
1738	tristate "Broadcom BCM2835 hardware watchdog"
1739	depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1740	select WATCHDOG_CORE
1741	help
1742	  Watchdog driver for the built in watchdog hardware in Broadcom
1743	  BCM2835 SoC.
1744
1745	  To compile this driver as a loadable module, choose M here.
1746	  The module will be called bcm2835_wdt.
1747
1748config BCM_KONA_WDT
1749	tristate "BCM Kona Watchdog"
1750	depends on ARCH_BCM_MOBILE || COMPILE_TEST
1751	select WATCHDOG_CORE
1752	help
1753	  Support for the watchdog timer on the following Broadcom BCM281xx
1754	  family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1755	  BCM28155 variants.
1756
1757	  Say 'Y' or 'M' here to enable the driver. The module will be called
1758	  bcm_kona_wdt.
1759
1760config BCM_KONA_WDT_DEBUG
1761	bool "DEBUGFS support for BCM Kona Watchdog"
1762	depends on BCM_KONA_WDT
1763	help
1764	  If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1765	  access to the driver's internal data structures as well as watchdog
1766	  timer hardware registres.
1767
1768	  If in doubt, say 'N'.
1769
1770config BCM7038_WDT
1771	tristate "BCM7038 Watchdog"
1772	select WATCHDOG_CORE
1773	depends on HAS_IOMEM
1774	depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1775	help
1776	 Watchdog driver for the built-in hardware in Broadcom 7038 and
1777	 later SoCs used in set-top boxes.  BCM7038 was made public
1778	 during the 2004 CES, and since then, many Broadcom chips use this
1779	 watchdog block, including some cable modem chips.
1780
1781config IMGPDC_WDT
1782	tristate "Imagination Technologies PDC Watchdog Timer"
1783	depends on HAS_IOMEM
1784	depends on MIPS || COMPILE_TEST
1785	select WATCHDOG_CORE
1786	help
1787	  Driver for Imagination Technologies PowerDown Controller
1788	  Watchdog Timer.
1789
1790	  To compile this driver as a loadable module, choose M here.
1791	  The module will be called imgpdc_wdt.
1792
1793config LANTIQ_WDT
1794	tristate "Lantiq SoC watchdog"
1795	depends on LANTIQ
1796	select WATCHDOG_CORE
1797	help
1798	  Hardware driver for the Lantiq SoC Watchdog Timer.
1799
1800config LOONGSON1_WDT
1801	tristate "Loongson1 SoC hardware watchdog"
1802	depends on MACH_LOONGSON32
1803	select WATCHDOG_CORE
1804	help
1805	  Hardware driver for the Loongson1 SoC Watchdog Timer.
1806
1807config RALINK_WDT
1808	tristate "Ralink SoC watchdog"
1809	select WATCHDOG_CORE
1810	depends on RALINK
1811	help
1812	  Hardware driver for the Ralink SoC Watchdog Timer.
1813
1814config MT7621_WDT
1815	tristate "Mediatek SoC watchdog"
1816	select WATCHDOG_CORE
1817	depends on SOC_MT7620 || SOC_MT7621
1818	help
1819	  Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1820
1821config PIC32_WDT
1822	tristate "Microchip PIC32 hardware watchdog"
1823	select WATCHDOG_CORE
1824	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1825	help
1826	  Watchdog driver for the built in watchdog hardware in a PIC32.
1827
1828	  Configuration bits must be set appropriately for the watchdog to be
1829	  controlled by this driver.
1830
1831	  To compile this driver as a loadable module, choose M here.
1832	  The module will be called pic32-wdt.
1833
1834config PIC32_DMT
1835	tristate "Microchip PIC32 Deadman Timer"
1836	select WATCHDOG_CORE
1837	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1838	help
1839	  Watchdog driver for PIC32 instruction fetch counting timer. This specific
1840	  timer is typically be used in misson critical and safety critical
1841	  applications, where any single failure of the software functionality
1842	  and sequencing must be detected.
1843
1844	  To compile this driver as a loadable module, choose M here.
1845	  The module will be called pic32-dmt.
1846
1847# PARISC Architecture
1848
1849# POWERPC Architecture
1850
1851config GEF_WDT
1852	tristate "GE Watchdog Timer"
1853	depends on GE_FPGA
1854	---help---
1855	  Watchdog timer found in a number of GE single board computers.
1856
1857config MPC5200_WDT
1858	bool "MPC52xx Watchdog Timer"
1859	depends on PPC_MPC52xx || COMPILE_TEST
1860	help
1861	  Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1862
1863config 8xxx_WDT
1864	tristate "MPC8xxx Platform Watchdog Timer"
1865	depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1866	select WATCHDOG_CORE
1867	help
1868	  This driver is for a SoC level watchdog that exists on some
1869	  Freescale PowerPC processors. So far this driver supports:
1870	  - MPC8xx watchdogs
1871	  - MPC83xx watchdogs
1872	  - MPC86xx watchdogs
1873
1874	  For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1875
1876config MV64X60_WDT
1877	tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1878	depends on MV64X60 || COMPILE_TEST
1879
1880config PIKA_WDT
1881	tristate "PIKA FPGA Watchdog"
1882	depends on WARP || (PPC64 && COMPILE_TEST)
1883	default y
1884	help
1885	  This enables the watchdog in the PIKA FPGA. Currently used on
1886	  the Warp platform.
1887
1888config BOOKE_WDT
1889	tristate "PowerPC Book-E Watchdog Timer"
1890	depends on BOOKE || 4xx
1891	select WATCHDOG_CORE
1892	---help---
1893	  Watchdog driver for PowerPC Book-E chips, such as the Freescale
1894	  MPC85xx SOCs and the IBM PowerPC 440.
1895
1896	  Please see Documentation/watchdog/watchdog-api.rst for
1897	  more information.
1898
1899config BOOKE_WDT_DEFAULT_TIMEOUT
1900	int "PowerPC Book-E Watchdog Timer Default Timeout"
1901	depends on BOOKE_WDT
1902	default 38 if PPC_FSL_BOOK3E
1903	range 0 63 if PPC_FSL_BOOK3E
1904	default 3 if !PPC_FSL_BOOK3E
1905	range 0 3 if !PPC_FSL_BOOK3E
1906	help
1907	  Select the default watchdog timer period to be used by the PowerPC
1908	  Book-E watchdog driver.  A watchdog "event" occurs when the bit
1909	  position represented by this number transitions from zero to one.
1910
1911	  For Freescale Book-E processors, this is a number between 0 and 63.
1912	  For other Book-E processors, this is a number between 0 and 3.
1913
1914	  The value can be overridden by the wdt_period command-line parameter.
1915
1916config MEN_A21_WDT
1917	tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1918	select WATCHDOG_CORE
1919	depends on GPIOLIB || COMPILE_TEST
1920	help
1921	  Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1922
1923	  The driver can also be built as a module. If so, the module will be
1924	  called mena21_wdt.
1925
1926	  If unsure select N here.
1927
1928# PPC64 Architecture
1929
1930config WATCHDOG_RTAS
1931	tristate "RTAS watchdog"
1932	depends on PPC_RTAS
1933	help
1934	  This driver adds watchdog support for the RTAS watchdog.
1935
1936	  To compile this driver as a module, choose M here. The module
1937	  will be called wdrtas.
1938
1939# S390 Architecture
1940
1941config DIAG288_WATCHDOG
1942	tristate "System z diag288 Watchdog"
1943	depends on S390
1944	select WATCHDOG_CORE
1945	help
1946	  IBM s/390 and zSeries machines running under z/VM 5.1 or later
1947	  provide a virtual watchdog timer to their guest that cause a
1948	  user define Control Program command to be executed after a
1949	  timeout.
1950	  LPAR provides a very similar interface. This driver handles
1951	  both.
1952
1953	  To compile this driver as a module, choose M here. The module
1954	  will be called diag288_wdt.
1955
1956# SUPERH (sh + sh64) Architecture
1957
1958config SH_WDT
1959	tristate "SuperH Watchdog"
1960	depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1961	select WATCHDOG_CORE
1962	help
1963	  This driver adds watchdog support for the integrated watchdog in the
1964	  SuperH processors. If you have one of these processors and wish
1965	  to have watchdog support enabled, say Y, otherwise say N.
1966
1967	  As a side note, saying Y here will automatically boost HZ to 1000
1968	  so that the timer has a chance to clear the overflow counter. On
1969	  slower systems (such as the SH-2 and SH-3) this will likely yield
1970	  some performance issues. As such, the WDT should be avoided here
1971	  unless it is absolutely necessary.
1972
1973	  To compile this driver as a module, choose M here: the
1974	  module will be called shwdt.
1975
1976# SPARC Architecture
1977
1978# SPARC64 Architecture
1979
1980config WATCHDOG_CP1XXX
1981	tristate "CP1XXX Hardware Watchdog support"
1982	depends on SPARC64 && PCI
1983	---help---
1984	  This is the driver for the hardware watchdog timers present on
1985	  Sun Microsystems CompactPCI models CP1400 and CP1500.
1986
1987	  To compile this driver as a module, choose M here: the
1988	  module will be called cpwatchdog.
1989
1990	  If you do not have a CompactPCI model CP1400 or CP1500, or
1991	  another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1992	  you should say N to this option.
1993
1994config WATCHDOG_RIO
1995	tristate "RIO Hardware Watchdog support"
1996	depends on SPARC64 && PCI
1997	help
1998	  Say Y here to support the hardware watchdog capability on Sun RIO
1999	  machines.  The watchdog timeout period is normally one minute but
2000	  can be changed with a boot-time parameter.
2001
2002config WATCHDOG_SUN4V
2003	tristate "Sun4v Watchdog support"
2004	select WATCHDOG_CORE
2005	depends on SPARC64
2006	help
2007	  Say Y here to support the hypervisor watchdog capability embedded
2008	  in the SPARC sun4v architecture.
2009
2010	  To compile this driver as a module, choose M here. The module will
2011	  be called sun4v_wdt.
2012
2013# XTENSA Architecture
2014
2015# Xen Architecture
2016
2017config XEN_WDT
2018	tristate "Xen Watchdog support"
2019	depends on XEN
2020	select WATCHDOG_CORE
2021	help
2022	  Say Y here to support the hypervisor watchdog capability provided
2023	  by Xen 4.0 and newer.  The watchdog timeout period is normally one
2024	  minute but can be changed with a boot-time parameter.
2025
2026config UML_WATCHDOG
2027	tristate "UML watchdog"
2028	depends on UML || COMPILE_TEST
2029
2030#
2031# ISA-based Watchdog Cards
2032#
2033
2034comment "ISA-based Watchdog Cards"
2035	depends on ISA
2036
2037config PCWATCHDOG
2038	tristate "Berkshire Products ISA-PC Watchdog"
2039	depends on ISA
2040	---help---
2041	  This is the driver for the Berkshire Products ISA-PC Watchdog card.
2042	  This card simply watches your kernel to make sure it doesn't freeze,
2043	  and if it does, it reboots your computer after a certain amount of
2044	  time. This driver is like the WDT501 driver but for different
2045	  hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. The PC
2046	  watchdog cards can be ordered from <http://www.berkprod.com/>.
2047
2048	  To compile this driver as a module, choose M here: the
2049	  module will be called pcwd.
2050
2051	  Most people will say N.
2052
2053config MIXCOMWD
2054	tristate "Mixcom Watchdog"
2055	depends on ISA
2056	---help---
2057	  This is a driver for the Mixcom hardware watchdog cards.  This
2058	  watchdog simply watches your kernel to make sure it doesn't freeze,
2059	  and if it does, it reboots your computer after a certain amount of
2060	  time.
2061
2062	  To compile this driver as a module, choose M here: the
2063	  module will be called mixcomwd.
2064
2065	  Most people will say N.
2066
2067config WDT
2068	tristate "WDT Watchdog timer"
2069	depends on ISA
2070	---help---
2071	  If you have a WDT500P or WDT501P watchdog board, say Y here,
2072	  otherwise N. It is not possible to probe for this board, which means
2073	  that you have to inform the kernel about the IO port and IRQ that
2074	  is needed (you can do this via the io and irq parameters)
2075
2076	  To compile this driver as a module, choose M here: the
2077	  module will be called wdt.
2078
2079#
2080# PCI-based Watchdog Cards
2081#
2082
2083comment "PCI-based Watchdog Cards"
2084	depends on PCI
2085
2086config PCIPCWATCHDOG
2087	tristate "Berkshire Products PCI-PC Watchdog"
2088	depends on PCI
2089	---help---
2090	  This is the driver for the Berkshire Products PCI-PC Watchdog card.
2091	  This card simply watches your kernel to make sure it doesn't freeze,
2092	  and if it does, it reboots your computer after a certain amount of
2093	  time. The card can also monitor the internal temperature of the PC.
2094	  More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2095
2096	  To compile this driver as a module, choose M here: the
2097	  module will be called pcwd_pci.
2098
2099	  Most people will say N.
2100
2101config WDTPCI
2102	tristate "PCI-WDT500/501 Watchdog timer"
2103	depends on PCI
2104	---help---
2105	  If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2106
2107	  If you have a PCI-WDT501 watchdog board then you can enable the
2108	  temperature sensor by setting the type parameter to 501.
2109
2110	  If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2111	  can do this via the tachometer parameter. Only do this if you have a
2112	  fan tachometer actually set up.
2113
2114	  To compile this driver as a module, choose M here: the
2115	  module will be called wdt_pci.
2116
2117#
2118# USB-based Watchdog Cards
2119#
2120
2121comment "USB-based Watchdog Cards"
2122	depends on USB
2123
2124config USBPCWATCHDOG
2125	tristate "Berkshire Products USB-PC Watchdog"
2126	depends on USB
2127	---help---
2128	  This is the driver for the Berkshire Products USB-PC Watchdog card.
2129	  This card simply watches your kernel to make sure it doesn't freeze,
2130	  and if it does, it reboots your computer after a certain amount of
2131	  time. The card can also monitor the internal temperature of the PC.
2132	  More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2133
2134	  To compile this driver as a module, choose M here: the
2135	  module will be called pcwd_usb.
2136
2137	  Most people will say N.
2138
2139endif # WATCHDOG
2140