xref: /linux/drivers/watchdog/Kconfig (revision 0f1f7f22f384f34b2f0800a3734aa0fc83eafff2)
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
343config SL28CPLD_WATCHDOG
344	tristate "Kontron sl28cpld Watchdog"
345	depends on MFD_SL28CPLD || COMPILE_TEST
346	select WATCHDOG_CORE
347	help
348	  Say Y here to include support for the watchdog timer
349	  on the Kontron sl28 CPLD.
350
351	  To compile this driver as a module, choose M here: the
352	  module will be called sl28cpld_wdt.
353
354# ALPHA Architecture
355
356# ARM Architecture
357
358config ARM_SP805_WATCHDOG
359	tristate "ARM SP805 Watchdog"
360	depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
361	select WATCHDOG_CORE
362	help
363	  ARM Primecell SP805 Watchdog timer. This will reboot your system when
364	  the timeout is reached.
365
366config ARM_SBSA_WATCHDOG
367	tristate "ARM SBSA Generic Watchdog"
368	depends on ARM64
369	depends on ARM_ARCH_TIMER
370	select WATCHDOG_CORE
371	help
372	  ARM SBSA Generic Watchdog has two stage timeouts:
373	  the first signal (WS0) is for alerting the system by interrupt,
374	  the second one (WS1) is a real hardware reset.
375	  More details: ARM DEN0029B - Server Base System Architecture (SBSA)
376
377	  This driver can operate ARM SBSA Generic Watchdog as a single stage
378	  or a two stages watchdog, it depends on the module parameter "action".
379
380	  Note: the maximum timeout in the two stages mode is half of that in
381	  the single stage mode.
382
383	  To compile this driver as module, choose M here: The module
384	  will be called sbsa_gwdt.
385
386config ARMADA_37XX_WATCHDOG
387	tristate "Armada 37xx watchdog"
388	depends on ARCH_MVEBU || COMPILE_TEST
389	depends on HAS_IOMEM
390	select MFD_SYSCON
391	select WATCHDOG_CORE
392	help
393	   Say Y here to include support for the watchdog timer found on
394	   Marvell Armada 37xx SoCs.
395	   To compile this driver as a module, choose M here: the
396	   module will be called armada_37xx_wdt.
397
398config ASM9260_WATCHDOG
399	tristate "Alphascale ASM9260 watchdog"
400	depends on MACH_ASM9260 || COMPILE_TEST
401	depends on OF
402	select WATCHDOG_CORE
403	select RESET_CONTROLLER
404	help
405	  Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your
406	  system when the timeout is reached.
407
408config AT91RM9200_WATCHDOG
409	tristate "AT91RM9200 watchdog"
410	depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
411	help
412	  Watchdog timer embedded into AT91RM9200 chips. This will reboot your
413	  system when the timeout is reached.
414
415config AT91SAM9X_WATCHDOG
416	tristate "AT91SAM9X / AT91CAP9 watchdog"
417	depends on ARCH_AT91 || COMPILE_TEST
418	select WATCHDOG_CORE
419	help
420	  Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
421	  reboot your system when the timeout is reached.
422
423config SAMA5D4_WATCHDOG
424	tristate "Atmel SAMA5D4 Watchdog Timer"
425	depends on ARCH_AT91 || COMPILE_TEST
426	select WATCHDOG_CORE
427	help
428	  Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
429	  Its Watchdog Timer Mode Register can be written more than once.
430	  This will reboot your system when the timeout is reached.
431
432config CADENCE_WATCHDOG
433	tristate "Cadence Watchdog Timer"
434	depends on HAS_IOMEM
435	select WATCHDOG_CORE
436	help
437	  Say Y here if you want to include support for the watchdog
438	  timer in the Xilinx Zynq.
439
440config 21285_WATCHDOG
441	tristate "DC21285 watchdog"
442	depends on FOOTBRIDGE
443	help
444	  The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
445	  here if you wish to use this. Alternatively say M to compile the
446	  driver as a module, which will be called wdt285.
447
448	  This driver does not work on all machines. In particular, early CATS
449	  boards have hardware problems that will cause the machine to simply
450	  lock up if the watchdog fires.
451
452	  "If in doubt, leave it out" - say N.
453
454config 977_WATCHDOG
455	tristate "NetWinder WB83C977 watchdog"
456	depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
457	help
458	  Say Y here to include support for the WB977 watchdog included in
459	  NetWinder machines. Alternatively say M to compile the driver as
460	  a module, which will be called wdt977.
461
462	  Not sure? It's safe to say N.
463
464config FTWDT010_WATCHDOG
465	tristate "Faraday Technology FTWDT010 watchdog"
466	depends on ARM || COMPILE_TEST
467	select WATCHDOG_CORE
468	default ARCH_GEMINI
469	help
470	  Say Y here if to include support for the Faraday Technology
471	  FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
472	  family of devices.
473
474	  To compile this driver as a module, choose M here: the
475	  module will be called ftwdt010_wdt.
476
477config IXP4XX_WATCHDOG
478	tristate "IXP4xx Watchdog"
479	depends on ARCH_IXP4XX
480	help
481	  Say Y here if to include support for the watchdog timer
482	  in the Intel IXP4xx network processors. This driver can
483	  be built as a module by choosing M. The module will
484	  be called ixp4xx_wdt.
485
486	  Note: The internal IXP4xx watchdog does a soft CPU reset
487	  which doesn't reset any peripherals. There are circumstances
488	  where the watchdog will fail to reset the board correctly
489	  (e.g., if the boot ROM is in an unreadable state).
490
491	  Say N if you are unsure.
492
493config S3C2410_WATCHDOG
494	tristate "S3C2410 Watchdog"
495	depends on ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || \
496		   COMPILE_TEST
497	select WATCHDOG_CORE
498	select MFD_SYSCON if ARCH_EXYNOS
499	help
500	  Watchdog timer block in the Samsung SoCs. This will reboot
501	  the system when the timer expires with the watchdog enabled.
502
503	  The driver is limited by the speed of the system's PCLK
504	  signal, so with reasonably fast systems (PCLK around 50-66MHz)
505	  then watchdog intervals of over approximately 20seconds are
506	  unavailable.
507
508	  The driver can be built as a module by choosing M, and will
509	  be called s3c2410_wdt
510
511config SA1100_WATCHDOG
512	tristate "SA1100/PXA2xx watchdog"
513	depends on ARCH_SA1100 || ARCH_PXA
514	help
515	  Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
516	  reboot your system when timeout is reached.
517
518	  NOTE: once enabled, this timer cannot be disabled.
519
520	  To compile this driver as a module, choose M here: the
521	  module will be called sa1100_wdt.
522
523config DW_WATCHDOG
524	tristate "Synopsys DesignWare watchdog"
525	depends on HAS_IOMEM
526	select WATCHDOG_CORE
527	help
528	  Say Y here if to include support for the Synopsys DesignWare
529	  watchdog timer found in many chips.
530	  To compile this driver as a module, choose M here: the
531	  module will be called dw_wdt.
532
533config EP93XX_WATCHDOG
534	tristate "EP93xx Watchdog"
535	depends on ARCH_EP93XX || COMPILE_TEST
536	select WATCHDOG_CORE
537	help
538	  Say Y here if to include support for the watchdog timer
539	  embedded in the Cirrus Logic EP93xx family of devices.
540
541	  To compile this driver as a module, choose M here: the
542	  module will be called ep93xx_wdt.
543
544config OMAP_WATCHDOG
545	tristate "OMAP Watchdog"
546	depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
547	select WATCHDOG_CORE
548	help
549	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.  Say 'Y'
550	  here to enable the 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 COH901327_WATCHDOG
634	bool "ST-Ericsson COH 901 327 watchdog"
635	depends on ARCH_U300 || (ARM && COMMON_CLK && COMPILE_TEST)
636	default y if MACH_U300
637	select WATCHDOG_CORE
638	help
639	  Say Y here to include Watchdog timer support for the
640	  watchdog embedded into the ST-Ericsson U300 series platforms.
641	  This watchdog is used to reset the system and thus cannot be
642	  compiled as a module.
643
644config NPCM7XX_WATCHDOG
645	tristate "Nuvoton NPCM750 watchdog"
646	depends on ARCH_NPCM || COMPILE_TEST
647	default y if ARCH_NPCM7XX
648	select WATCHDOG_CORE
649	help
650	  Say Y here to include Watchdog timer support for the
651	  watchdog embedded into the NPCM7xx.
652	  This watchdog is used to reset the system and thus cannot be
653	  compiled as a module.
654
655config TWL4030_WATCHDOG
656	tristate "TWL4030 Watchdog"
657	depends on TWL4030_CORE
658	select WATCHDOG_CORE
659	help
660	  Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
661	  watchdog timer support for TWL4030 chips.
662
663config STMP3XXX_RTC_WATCHDOG
664	tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
665	depends on RTC_DRV_STMP || COMPILE_TEST
666	select WATCHDOG_CORE
667	help
668	  Say Y here to include support for the watchdog timer inside
669	  the RTC for the STMP37XX/378X or i.MX23/28 SoC.
670	  To compile this driver as a module, choose M here: the
671	  module will be called stmp3xxx_rtc_wdt.
672
673config TS4800_WATCHDOG
674	tristate "TS-4800 Watchdog"
675	depends on HAS_IOMEM && OF
676	depends on SOC_IMX51 || COMPILE_TEST
677	select WATCHDOG_CORE
678	select MFD_SYSCON
679	help
680	  Technologic Systems TS-4800 has watchdog timer implemented in
681	  an external FPGA. Say Y here if you want to support for the
682	  watchdog timer on TS-4800 board.
683
684config TS72XX_WATCHDOG
685	tristate "TS-72XX SBC Watchdog"
686	depends on MACH_TS72XX || COMPILE_TEST
687	select WATCHDOG_CORE
688	help
689	  Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
690	  watchdog timer implemented in a external CPLD chip. Say Y here
691	  if you want to support for the watchdog timer on TS-72XX boards.
692
693	  To compile this driver as a module, choose M here: the
694	  module will be called ts72xx_wdt.
695
696config MAX63XX_WATCHDOG
697	tristate "Max63xx watchdog"
698	depends on HAS_IOMEM
699	select WATCHDOG_CORE
700	help
701	  Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
702
703config MAX77620_WATCHDOG
704	tristate "Maxim Max77620 Watchdog Timer"
705	depends on MFD_MAX77620 || COMPILE_TEST
706	select WATCHDOG_CORE
707	help
708	 This is the driver for the Max77620 watchdog timer.
709	 Say 'Y' here to enable the watchdog timer support for
710	 MAX77620 chips. To compile this driver as a module,
711	 choose M here: the module will be called max77620_wdt.
712
713config IMX2_WDT
714	tristate "IMX2+ Watchdog"
715	depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
716	select REGMAP_MMIO
717	select WATCHDOG_CORE
718	help
719	  This is the driver for the hardware watchdog
720	  on the Freescale IMX2 and later processors.
721	  If you have one of these processors and wish to have
722	  watchdog support enabled, say Y, otherwise say N.
723
724	  To compile this driver as a module, choose M here: the
725	  module will be called imx2_wdt.
726
727config IMX_SC_WDT
728	tristate "IMX SC Watchdog"
729	depends on HAVE_ARM_SMCCC
730	depends on IMX_SCU
731	select WATCHDOG_CORE
732	help
733	  This is the driver for the system controller watchdog
734	  on the NXP i.MX SoCs with system controller inside, the
735	  watchdog driver will call ARM SMC API and trap into
736	  ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
737	  will request system controller to execute the operations.
738	  If you have one of these processors and wish to have
739	  watchdog support enabled, say Y, otherwise say N.
740
741	  To compile this driver as a module, choose M here: the
742	  module will be called imx_sc_wdt.
743
744config IMX7ULP_WDT
745	tristate "IMX7ULP Watchdog"
746	depends on ARCH_MXC || COMPILE_TEST
747	select WATCHDOG_CORE
748	help
749	  This is the driver for the hardware watchdog on the Freescale
750	  IMX7ULP and later processors. If you have one of these
751	  processors and wish to have watchdog support enabled,
752	  say Y, otherwise say N.
753
754	  To compile this driver as a module, choose M here: the
755	  module will be called imx7ulp_wdt.
756
757config UX500_WATCHDOG
758	tristate "ST-Ericsson Ux500 watchdog"
759	depends on MFD_DB8500_PRCMU
760	select WATCHDOG_CORE
761	default y
762	help
763	  Say Y here to include Watchdog timer support for the watchdog
764	  existing in the prcmu of ST-Ericsson Ux500 series platforms.
765
766	  To compile this driver as a module, choose M here: the
767	  module will be called ux500_wdt.
768
769config RETU_WATCHDOG
770	tristate "Retu watchdog"
771	depends on MFD_RETU
772	select WATCHDOG_CORE
773	help
774	  Retu watchdog driver for Nokia Internet Tablets (770, N800,
775	  N810). At least on N800 the watchdog cannot be disabled, so
776	  this driver is essential and you should enable it.
777
778	  To compile this driver as a module, choose M here: the
779	  module will be called retu_wdt.
780
781config MOXART_WDT
782	tristate "MOXART watchdog"
783	depends on ARCH_MOXART || COMPILE_TEST
784	help
785	  Say Y here to include Watchdog timer support for the watchdog
786	  existing on the MOXA ART SoC series platforms.
787
788	  To compile this driver as a module, choose M here: the
789	  module will be called moxart_wdt.
790
791config SIRFSOC_WATCHDOG
792	tristate "SiRFSOC watchdog"
793	depends on HAS_IOMEM
794	depends on ARCH_SIRF || COMPILE_TEST
795	select WATCHDOG_CORE
796	default y
797	help
798	  Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
799	  the watchdog triggers the system will be reset.
800
801config ST_LPC_WATCHDOG
802	tristate "STMicroelectronics LPC Watchdog"
803	depends on ARCH_STI || COMPILE_TEST
804	depends on OF
805	select WATCHDOG_CORE
806	help
807	  Say Y here to include STMicroelectronics Low Power Controller
808	  (LPC) based Watchdog timer support.
809
810	  To compile this driver as a module, choose M here: the
811	  module will be called st_lpc_wdt.
812
813config TEGRA_WATCHDOG
814	tristate "Tegra watchdog"
815	depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
816	select WATCHDOG_CORE
817	help
818	  Say Y here to include support for the watchdog timer
819	  embedded in NVIDIA Tegra SoCs.
820
821	  To compile this driver as a module, choose M here: the
822	  module will be called tegra_wdt.
823
824config QCOM_WDT
825	tristate "QCOM watchdog"
826	depends on HAS_IOMEM
827	depends on ARCH_QCOM || COMPILE_TEST
828	select WATCHDOG_CORE
829	help
830	  Say Y here to include Watchdog timer support for the watchdog found
831	  on QCOM chipsets.  Currently supported targets are the MSM8960,
832	  APQ8064, and IPQ8064.
833
834	  To compile this driver as a module, choose M here: the
835	  module will be called qcom_wdt.
836
837config MESON_GXBB_WATCHDOG
838	tristate "Amlogic Meson GXBB SoCs watchdog support"
839	depends on ARCH_MESON || COMPILE_TEST
840	select WATCHDOG_CORE
841	help
842	  Say Y here to include support for the watchdog timer
843	  in Amlogic Meson GXBB SoCs.
844	  To compile this driver as a module, choose M here: the
845	  module will be called meson_gxbb_wdt.
846
847config MESON_WATCHDOG
848	tristate "Amlogic Meson SoCs watchdog support"
849	depends on ARCH_MESON || COMPILE_TEST
850	select WATCHDOG_CORE
851	help
852	  Say Y here to include support for the watchdog timer
853	  in Amlogic Meson SoCs.
854	  To compile this driver as a module, choose M here: the
855	  module will be called meson_wdt.
856
857config MEDIATEK_WATCHDOG
858	tristate "Mediatek SoCs watchdog support"
859	depends on ARCH_MEDIATEK || COMPILE_TEST
860	select WATCHDOG_CORE
861	select RESET_CONTROLLER
862	help
863	  Say Y here to include support for the watchdog timer
864	  in Mediatek SoCs.
865	  To compile this driver as a module, choose M here: the
866	  module will be called mtk_wdt.
867
868config DIGICOLOR_WATCHDOG
869	tristate "Conexant Digicolor SoCs watchdog support"
870	depends on ARCH_DIGICOLOR || COMPILE_TEST
871	select WATCHDOG_CORE
872	help
873	  Say Y here to include support for the watchdog timer
874	  in Conexant Digicolor SoCs.
875	  To compile this driver as a module, choose M here: the
876	  module will be called digicolor_wdt.
877
878config ARM_SMC_WATCHDOG
879	tristate "ARM Secure Monitor Call based watchdog support"
880	depends on ARM || ARM64
881	depends on OF
882	depends on HAVE_ARM_SMCCC
883	select WATCHDOG_CORE
884	help
885	  Say Y here to include support for a watchdog timer
886	  implemented by the EL3 Secure Monitor on ARM platforms.
887	  Requires firmware support.
888	  To compile this driver as a module, choose M here: the
889	  module will be called arm_smc_wdt.
890
891config LPC18XX_WATCHDOG
892	tristate "LPC18xx/43xx Watchdog"
893	depends on ARCH_LPC18XX || COMPILE_TEST
894	depends on HAS_IOMEM
895	select WATCHDOG_CORE
896	help
897	  Say Y here if to include support for the watchdog timer
898	  in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
899	  processors.
900	  To compile this driver as a module, choose M here: the
901	  module will be called lpc18xx_wdt.
902
903config ATLAS7_WATCHDOG
904	tristate "CSRatlas7 watchdog"
905	depends on ARCH_ATLAS7 || COMPILE_TEST
906	help
907	  Say Y here to include Watchdog timer support for the watchdog
908	  existing on the CSRatlas7 series platforms.
909
910	  To compile this driver as a module, choose M here: the
911	  module will be called atlas7_wdt.
912
913config RENESAS_WDT
914	tristate "Renesas WDT Watchdog"
915	depends on ARCH_RENESAS || COMPILE_TEST
916	select WATCHDOG_CORE
917	help
918	  This driver adds watchdog support for the integrated watchdogs in the
919	  Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
920
921config RENESAS_RZAWDT
922	tristate "Renesas RZ/A WDT Watchdog"
923	depends on ARCH_RENESAS || COMPILE_TEST
924	select WATCHDOG_CORE
925	help
926	  This driver adds watchdog support for the integrated watchdogs in the
927	  Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
928
929config ASPEED_WATCHDOG
930	tristate "Aspeed BMC watchdog support"
931	depends on ARCH_ASPEED || COMPILE_TEST
932	select WATCHDOG_CORE
933	help
934	  Say Y here to include support for the watchdog timer
935	  in Aspeed BMC SoCs.
936
937	  This driver is required to reboot the SoC.
938
939	  To compile this driver as a module, choose M here: the
940	  module will be called aspeed_wdt.
941
942config ZX2967_WATCHDOG
943	tristate "ZTE zx2967 SoCs watchdog support"
944	depends on ARCH_ZX
945	select WATCHDOG_CORE
946	help
947	  Say Y here to include support for the watchdog timer
948	  in ZTE zx2967 SoCs.
949	  To compile this driver as a module, choose M here: the
950	  module will be called zx2967_wdt.
951
952config STM32_WATCHDOG
953	tristate "STM32 Independent WatchDoG (IWDG) support"
954	depends on ARCH_STM32
955	select WATCHDOG_CORE
956	default y
957	help
958	  Say Y here to include support for the watchdog timer
959	  in stm32 SoCs.
960
961	  To compile this driver as a module, choose M here: the
962	  module will be called stm32_iwdg.
963
964config STPMIC1_WATCHDOG
965	tristate "STPMIC1 PMIC watchdog support"
966	depends on MFD_STPMIC1
967	select WATCHDOG_CORE
968	help
969	  Say Y here to include watchdog support embedded into STPMIC1 PMIC.
970	  If the watchdog timer expires, stpmic1 will shut down all its power
971	  supplies.
972
973	  To compile this driver as a module, choose M here: the
974	  module will be called spmic1_wdt.
975
976config UNIPHIER_WATCHDOG
977	tristate "UniPhier watchdog support"
978	depends on ARCH_UNIPHIER || COMPILE_TEST
979	depends on OF && MFD_SYSCON
980	select WATCHDOG_CORE
981	help
982	  Say Y here to include support watchdog timer embedded
983	  into the UniPhier system.
984
985	  To compile this driver as a module, choose M here: the
986	  module will be called uniphier_wdt.
987
988config RTD119X_WATCHDOG
989	bool "Realtek RTD119x/RTD129x watchdog support"
990	depends on ARCH_REALTEK || COMPILE_TEST
991	depends on OF
992	select WATCHDOG_CORE
993	default ARCH_REALTEK
994	help
995	  Say Y here to include support for the watchdog timer in
996	  Realtek RTD1295 SoCs.
997
998config SPRD_WATCHDOG
999	tristate "Spreadtrum watchdog support"
1000	depends on ARCH_SPRD || COMPILE_TEST
1001	select WATCHDOG_CORE
1002	help
1003	  Say Y here to include watchdog timer supported
1004	  by Spreadtrum system.
1005
1006config PM8916_WATCHDOG
1007	tristate "QCOM PM8916 pmic watchdog"
1008	depends on OF && MFD_SPMI_PMIC
1009	select WATCHDOG_CORE
1010	help
1011	  Say Y here to include support watchdog timer embedded into the
1012	  pm8916 module.
1013
1014config VISCONTI_WATCHDOG
1015	tristate "Toshiba Visconti series watchdog support"
1016	depends on ARCH_VISCONTI || COMPILE_TEST
1017	select WATCHDOG_CORE
1018	help
1019	  Say Y here to include support for the watchdog timer in Toshiba
1020	  Visconti SoCs.
1021
1022# X86 (i386 + ia64 + x86_64) Architecture
1023
1024config ACQUIRE_WDT
1025	tristate "Acquire SBC Watchdog Timer"
1026	depends on X86
1027	help
1028	  This is the driver for the hardware watchdog on Single Board
1029	  Computers produced by Acquire Inc (and others). This watchdog
1030	  simply watches your kernel to make sure it doesn't freeze, and if
1031	  it does, it reboots your computer after a certain amount of time.
1032
1033	  To compile this driver as a module, choose M here: the
1034	  module will be called acquirewdt.
1035
1036	  Most people will say N.
1037
1038config ADVANTECH_WDT
1039	tristate "Advantech SBC Watchdog Timer"
1040	depends on X86
1041	help
1042	  If you are configuring a Linux kernel for the Advantech single-board
1043	  computer, say `Y' here to support its built-in watchdog timer
1044	  feature. More information can be found at
1045	  <https://www.advantech.com.tw/products/>
1046
1047config ALIM1535_WDT
1048	tristate "ALi M1535 PMU Watchdog Timer"
1049	depends on X86 && PCI
1050	help
1051	  This is the driver for the hardware watchdog on the ALi M1535 PMU.
1052
1053	  To compile this driver as a module, choose M here: the
1054	  module will be called alim1535_wdt.
1055
1056	  Most people will say N.
1057
1058config ALIM7101_WDT
1059	tristate "ALi M7101 PMU Computer Watchdog"
1060	depends on PCI
1061	help
1062	  This is the driver for the hardware watchdog on the ALi M7101 PMU
1063	  as used in the x86 Cobalt servers and also found in some
1064	  SPARC Netra servers too.
1065
1066	  To compile this driver as a module, choose M here: the
1067	  module will be called alim7101_wdt.
1068
1069	  Most people will say N.
1070
1071config EBC_C384_WDT
1072	tristate "WinSystems EBC-C384 Watchdog Timer"
1073	depends on X86
1074	select ISA_BUS_API
1075	select WATCHDOG_CORE
1076	help
1077	  Enables watchdog timer support for the watchdog timer on the
1078	  WinSystems EBC-C384 motherboard. The timeout may be configured via
1079	  the timeout module parameter.
1080
1081config F71808E_WDT
1082	tristate "Fintek F718xx, F818xx Super I/O Watchdog"
1083	depends on X86
1084	help
1085	  This is the driver for the hardware watchdog on the Fintek F71808E,
1086	  F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and
1087	  F81866 Super I/O controllers.
1088
1089	  You can compile this driver directly into the kernel, or use
1090	  it as a module.  The module will be called f71808e_wdt.
1091
1092config SP5100_TCO
1093	tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
1094	depends on X86 && PCI
1095	select WATCHDOG_CORE
1096	help
1097	  Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
1098	  (Total Cost of Ownership) timer is a watchdog timer that will reboot
1099	  the machine after its expiration. The expiration time can be
1100	  configured with the "heartbeat" parameter.
1101
1102	  To compile this driver as a module, choose M here: the
1103	  module will be called sp5100_tco.
1104
1105config GEODE_WDT
1106	tristate "AMD Geode CS5535/CS5536 Watchdog"
1107	depends on CS5535_MFGPT
1108	help
1109	  This driver enables a watchdog capability built into the
1110	  CS5535/CS5536 companion chips for the AMD Geode GX and LX
1111	  processors.  This watchdog watches your kernel to make sure
1112	  it doesn't freeze, and if it does, it reboots your computer after
1113	  a certain amount of time.
1114
1115	  You can compile this driver directly into the kernel, or use
1116	  it as a module.  The module will be called geodewdt.
1117
1118config SC520_WDT
1119	tristate "AMD Elan SC520 processor Watchdog"
1120	depends on MELAN || COMPILE_TEST
1121	help
1122	  This is the driver for the hardware watchdog built in to the
1123	  AMD "Elan" SC520 microcomputer commonly used in embedded systems.
1124	  This watchdog simply watches your kernel to make sure it doesn't
1125	  freeze, and if it does, it reboots your computer after a certain
1126	  amount of time.
1127
1128	  You can compile this driver directly into the kernel, or use
1129	  it as a module.  The module will be called sc520_wdt.
1130
1131config SBC_FITPC2_WATCHDOG
1132	tristate "Compulab SBC-FITPC2 watchdog"
1133	depends on X86
1134	help
1135	  This is the driver for the built-in watchdog timer on the fit-PC2,
1136	  fit-PC2i, CM-iAM single-board computers made by Compulab.
1137
1138	  It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
1139	  When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
1140
1141	  Entering BIOS setup temporary disables watchdog operation regardless to current state,
1142	  so system will not be restarted while user in BIOS setup.
1143
1144	  Once watchdog was enabled the system will be restarted every
1145	  "Watchdog Timer Value" period, so to prevent it user can restart or
1146	  disable the watchdog.
1147
1148	  To compile this driver as a module, choose M here: the
1149	  module will be called sbc_fitpc2_wdt.
1150
1151	  Most people will say N.
1152
1153config EUROTECH_WDT
1154	tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1155	depends on X86
1156	help
1157	  Enable support for the watchdog timer on the Eurotech CPU-1220 and
1158	  CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
1159	  information are at <http://www.eurotech.it/>.
1160
1161config IB700_WDT
1162	tristate "IB700 SBC Watchdog Timer"
1163	depends on X86
1164	help
1165	  This is the driver for the hardware watchdog on the IB700 Single
1166	  Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
1167	  simply watches your kernel to make sure it doesn't freeze, and if
1168	  it does, it reboots your computer after a certain amount of time.
1169
1170	  This driver is like the WDT501 driver but for slightly different hardware.
1171
1172	  To compile this driver as a module, choose M here: the
1173	  module will be called ib700wdt.
1174
1175	  Most people will say N.
1176
1177config IBMASR
1178	tristate "IBM Automatic Server Restart"
1179	depends on X86
1180	help
1181	  This is the driver for the IBM Automatic Server Restart watchdog
1182	  timer built-in into some eServer xSeries machines.
1183
1184	  To compile this driver as a module, choose M here: the
1185	  module will be called ibmasr.
1186
1187config WAFER_WDT
1188	tristate "ICP Single Board Computer Watchdog Timer"
1189	depends on X86
1190	help
1191	  This is a driver for the hardware watchdog on the ICP Single
1192	  Board Computer. This driver is working on (at least) the following
1193	  IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1194
1195	  To compile this driver as a module, choose M here: the
1196	  module will be called wafer5823wdt.
1197
1198config I6300ESB_WDT
1199	tristate "Intel 6300ESB Timer/Watchdog"
1200	depends on PCI
1201	select WATCHDOG_CORE
1202	help
1203	  Hardware driver for the watchdog timer built into the Intel
1204	  6300ESB controller hub.
1205
1206	  To compile this driver as a module, choose M here: the
1207	  module will be called i6300esb.
1208
1209config IE6XX_WDT
1210	tristate "Intel Atom E6xx Watchdog"
1211	depends on X86 && PCI
1212	select WATCHDOG_CORE
1213	select MFD_CORE
1214	select LPC_SCH
1215	help
1216	  Hardware driver for the watchdog timer built into the Intel
1217	  Atom E6XX (TunnelCreek) processor.
1218
1219	  To compile this driver as a module, choose M here: the
1220	  module will be called ie6xx_wdt.
1221
1222config INTEL_MID_WATCHDOG
1223	tristate "Intel MID Watchdog Timer"
1224	depends on X86_INTEL_MID
1225	select WATCHDOG_CORE
1226	help
1227	  Watchdog timer driver built into the Intel SCU for Intel MID
1228	  Platforms.
1229
1230	  This driver currently supports only the watchdog evolution
1231	  implementation in SCU, available for Merrifield generation.
1232
1233	  To compile this driver as a module, choose M here.
1234
1235config ITCO_WDT
1236	tristate "Intel TCO Timer/Watchdog"
1237	depends on (X86 || IA64) && PCI
1238	select WATCHDOG_CORE
1239	depends on I2C || I2C=n
1240	depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT
1241	select LPC_ICH if !EXPERT
1242	select I2C_I801 if !EXPERT && I2C
1243	help
1244	  Hardware driver for the intel TCO timer based watchdog devices.
1245	  These drivers are included in the Intel 82801 I/O Controller
1246	  Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1247	  controller hub.
1248
1249	  The TCO (Total Cost of Ownership) timer is a watchdog timer
1250	  that will reboot the machine after its second expiration. The
1251	  expiration time can be configured with the "heartbeat" parameter.
1252
1253	  On some motherboards the driver may fail to reset the chipset's
1254	  NO_REBOOT flag which prevents the watchdog from rebooting the
1255	  machine. If this is the case you will get a kernel message like
1256	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1257
1258	  To compile this driver as a module, choose M here: the
1259	  module will be called iTCO_wdt.
1260
1261config ITCO_VENDOR_SUPPORT
1262	bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1263	depends on ITCO_WDT
1264	help
1265	  Add vendor specific support to the intel TCO timer based watchdog
1266	  devices. At this moment we only have additional support for some
1267	  SuperMicro Inc. motherboards.
1268
1269config IT8712F_WDT
1270	tristate "IT8712F (Smart Guardian) Watchdog Timer"
1271	depends on X86
1272	help
1273	  This is the driver for the built-in watchdog timer on the IT8712F
1274	  Super I/0 chipset used on many motherboards.
1275
1276	  If the driver does not work, then make sure that the game port in
1277	  the BIOS is enabled.
1278
1279	  To compile this driver as a module, choose M here: the
1280	  module will be called it8712f_wdt.
1281
1282config IT87_WDT
1283	tristate "IT87 Watchdog Timer"
1284	depends on X86
1285	select WATCHDOG_CORE
1286	help
1287	  This is the driver for the hardware watchdog on the ITE IT8607,
1288	  IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1289	  IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1290	  IT8783 Super I/O chips.
1291
1292	  This watchdog simply watches your kernel to make sure it doesn't
1293	  freeze, and if it does, it reboots your computer after a certain
1294	  amount of time.
1295
1296	  To compile this driver as a module, choose M here: the module will
1297	  be called it87_wdt.
1298
1299config HP_WATCHDOG
1300	tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1301	select WATCHDOG_CORE
1302	depends on X86 && PCI
1303	help
1304	  A software monitoring watchdog and NMI handling driver. This driver
1305	  will detect lockups and provide a stack trace. This is a driver that
1306	  will only load on an HP ProLiant system with a minimum of iLO2 support.
1307	  To compile this driver as a module, choose M here: the module will be
1308	  called hpwdt.
1309
1310config HPWDT_NMI_DECODING
1311	bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1312	depends on HP_WATCHDOG
1313	default y
1314	help
1315	  Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1316	  "Generate NMI to System" virtual button.  When an NMI is claimed
1317	  by the driver, panic is called.
1318
1319config KEMPLD_WDT
1320	tristate "Kontron COM Watchdog Timer"
1321	depends on MFD_KEMPLD
1322	select WATCHDOG_CORE
1323	help
1324	  Support for the PLD watchdog on some Kontron ETX and COMexpress
1325	  (ETXexpress) modules
1326
1327	  This driver can also be built as a module. If so, the module will be
1328	  called kempld_wdt.
1329
1330config SC1200_WDT
1331	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1332	depends on X86
1333	help
1334	  This is a driver for National Semiconductor PC87307/PC97307 hardware
1335	  watchdog cards as found on the SC1200. This watchdog is mainly used
1336	  for power management purposes and can be used to power down the device
1337	  during inactivity periods (includes interrupt activity monitoring).
1338
1339	  To compile this driver as a module, choose M here: the
1340	  module will be called sc1200wdt.
1341
1342	  Most people will say N.
1343
1344config SCx200_WDT
1345	tristate "National Semiconductor SCx200 Watchdog"
1346	depends on SCx200 && PCI
1347	help
1348	  Enable the built-in watchdog timer support on the National
1349	  Semiconductor SCx200 processors.
1350
1351	  If compiled as a module, it will be called scx200_wdt.
1352
1353config PC87413_WDT
1354	tristate "NS PC87413 watchdog"
1355	depends on X86
1356	help
1357	  This is the driver for the hardware watchdog on the PC87413 chipset
1358	  This watchdog simply watches your kernel to make sure it doesn't
1359	  freeze, and if it does, it reboots your computer after a certain
1360	  amount of time.
1361
1362	  To compile this driver as a module, choose M here: the
1363	  module will be called pc87413_wdt.
1364
1365	  Most people will say N.
1366
1367config NV_TCO
1368	tristate "nVidia TCO Timer/Watchdog"
1369	depends on X86 && PCI
1370	help
1371	  Hardware driver for the TCO timer built into the nVidia Hub family
1372	  (such as the MCP51).  The TCO (Total Cost of Ownership) timer is a
1373	  watchdog timer that will reboot the machine after its second
1374	  expiration. The expiration time can be configured with the
1375	  "heartbeat" parameter.
1376
1377	  On some motherboards the driver may fail to reset the chipset's
1378	  NO_REBOOT flag which prevents the watchdog from rebooting the
1379	  machine. If this is the case you will get a kernel message like
1380	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1381
1382	  To compile this driver as a module, choose M here: the
1383	  module will be called nv_tco.
1384
1385config RDC321X_WDT
1386	tristate "RDC R-321x SoC watchdog"
1387	depends on X86_RDC321X || COMPILE_TEST
1388	depends on PCI
1389	help
1390	  This is the driver for the built in hardware watchdog
1391	  in the RDC R-321x SoC.
1392
1393	  To compile this driver as a module, choose M here: the
1394	  module will be called rdc321x_wdt.
1395
1396config 60XX_WDT
1397	tristate "SBC-60XX Watchdog Timer"
1398	depends on X86
1399	help
1400	  This driver can be used with the watchdog timer found on some
1401	  single board computers, namely the 6010 PII based computer.
1402	  It may well work with other cards.  It reads port 0x443 to enable
1403	  and re-set the watchdog timer, and reads port 0x45 to disable
1404	  the watchdog.  If you have a card that behave in similar ways,
1405	  you can probably make this driver work with your card as well.
1406
1407	  You can compile this driver directly into the kernel, or use
1408	  it as a module.  The module will be called sbc60xxwdt.
1409
1410config SBC8360_WDT
1411	tristate "SBC8360 Watchdog Timer"
1412	depends on X86_32
1413	help
1414
1415	  This is the driver for the hardware watchdog on the SBC8360 Single
1416	  Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1417
1418	  To compile this driver as a module, choose M here: the
1419	  module will be called sbc8360.
1420
1421	  Most people will say N.
1422
1423config SBC7240_WDT
1424	tristate "SBC Nano 7240 Watchdog Timer"
1425	depends on X86_32 && !UML
1426	help
1427	  This is the driver for the hardware watchdog found on the IEI
1428	  single board computers EPIC Nano 7240 (and likely others). This
1429	  watchdog simply watches your kernel to make sure it doesn't freeze,
1430	  and if it does, it reboots your computer after a certain amount of
1431	  time.
1432
1433	  To compile this driver as a module, choose M here: the
1434	  module will be called sbc7240_wdt.
1435
1436config CPU5_WDT
1437	tristate "SMA CPU5 Watchdog"
1438	depends on X86
1439	help
1440	  TBD.
1441	  To compile this driver as a module, choose M here: the
1442	  module will be called cpu5wdt.
1443
1444config SMSC_SCH311X_WDT
1445	tristate "SMSC SCH311X Watchdog Timer"
1446	depends on X86
1447	help
1448	  This is the driver for the hardware watchdog timer on the
1449	  SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1450	  (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1451	  serial ports).
1452
1453	  To compile this driver as a module, choose M here: the
1454	  module will be called sch311x_wdt.
1455
1456config SMSC37B787_WDT
1457	tristate "Winbond SMsC37B787 Watchdog Timer"
1458	depends on X86
1459	help
1460	  This is the driver for the hardware watchdog component on the
1461	  Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1462	  from Vision Systems and maybe others.
1463
1464	  This watchdog simply watches your kernel to make sure it doesn't
1465	  freeze, and if it does, it reboots your computer after a certain
1466	  amount of time.
1467
1468	  Usually a userspace daemon will notify the kernel WDT driver that
1469	  userspace is still alive, at regular intervals.
1470
1471	  To compile this driver as a module, choose M here: the
1472	  module will be called smsc37b787_wdt.
1473
1474	  Most people will say N.
1475
1476config TQMX86_WDT
1477	tristate "TQ-Systems TQMX86 Watchdog Timer"
1478	depends on X86
1479	select WATCHDOG_CORE
1480	help
1481	This is the driver for the hardware watchdog timer in the TQMX86 IO
1482	controller found on some of their ComExpress Modules.
1483
1484	To compile this driver as a module, choose M here; the module
1485	will be called tqmx86_wdt.
1486
1487	Most people will say N.
1488
1489config VIA_WDT
1490	tristate "VIA Watchdog Timer"
1491	depends on X86 && PCI
1492	select WATCHDOG_CORE
1493	help
1494	This is the driver for the hardware watchdog timer on VIA
1495	southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1496
1497	To compile this driver as a module, choose M here; the module
1498	will be called via_wdt.
1499
1500	Most people will say N.
1501
1502config W83627HF_WDT
1503	tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1504	depends on X86
1505	select WATCHDOG_CORE
1506	help
1507	  This is the driver for the hardware watchdog on the following
1508	  Super I/O chips.
1509		W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1510		W83637HF
1511		W83667HG/HG-B
1512		W83687THF
1513		W83697HF
1514		W83697UG
1515		NCT6775
1516		NCT6776
1517		NCT6779
1518		NCT6791
1519		NCT6792
1520		NCT6102D/04D/06D
1521		NCT6116D
1522
1523	  This watchdog simply watches your kernel to make sure it doesn't
1524	  freeze, and if it does, it reboots your computer after a certain
1525	  amount of time.
1526
1527	  To compile this driver as a module, choose M here: the
1528	  module will be called w83627hf_wdt.
1529
1530	  Most people will say N.
1531
1532config W83877F_WDT
1533	tristate "W83877F (EMACS) Watchdog Timer"
1534	depends on X86
1535	help
1536	  This is the driver for the hardware watchdog on the W83877F chipset
1537	  as used in EMACS PC-104 motherboards (and likely others).  This
1538	  watchdog simply watches your kernel to make sure it doesn't freeze,
1539	  and if it does, it reboots your computer after a certain amount of
1540	  time.
1541
1542	  To compile this driver as a module, choose M here: the
1543	  module will be called w83877f_wdt.
1544
1545	  Most people will say N.
1546
1547config W83977F_WDT
1548	tristate "W83977F (PCM-5335) Watchdog Timer"
1549	depends on X86
1550	help
1551	  This is the driver for the hardware watchdog on the W83977F I/O chip
1552	  as used in AAEON's PCM-5335 SBC (and likely others).  This
1553	  watchdog simply watches your kernel to make sure it doesn't freeze,
1554	  and if it does, it reboots your computer after a certain amount of
1555	  time.
1556
1557	  To compile this driver as a module, choose M here: the
1558	  module will be called w83977f_wdt.
1559
1560config MACHZ_WDT
1561	tristate "ZF MachZ Watchdog"
1562	depends on X86
1563	help
1564	  If you are using a ZF Micro MachZ processor, say Y here, otherwise
1565	  N.  This is the driver for the watchdog timer built-in on that
1566	  processor using ZF-Logic interface.  This watchdog simply watches
1567	  your kernel to make sure it doesn't freeze, and if it does, it
1568	  reboots your computer after a certain amount of time.
1569
1570	  To compile this driver as a module, choose M here: the
1571	  module will be called machzwd.
1572
1573config SBC_EPX_C3_WATCHDOG
1574	tristate "Winsystems SBC EPX-C3 watchdog"
1575	depends on X86
1576	help
1577	  This is the driver for the built-in watchdog timer on the EPX-C3
1578	  Single-board computer made by Winsystems, Inc.
1579
1580	  *Note*: This hardware watchdog is not probeable and thus there
1581	  is no way to know if writing to its IO address will corrupt
1582	  your system or have any real effect.  The only way to be sure
1583	  that this driver does what you want is to make sure you
1584	  are running it on an EPX-C3 from Winsystems with the watchdog
1585	  timer at IO address 0x1ee and 0x1ef.  It will write to both those
1586	  IO ports.  Basically, the assumption is made that if you compile
1587	  this driver into your kernel and/or load it as a module, that you
1588	  know what you are doing and that you are in fact running on an
1589	  EPX-C3 board!
1590
1591	  To compile this driver as a module, choose M here: the
1592	  module will be called sbc_epx_c3.
1593
1594config INTEL_MEI_WDT
1595	tristate "Intel MEI iAMT Watchdog"
1596	depends on INTEL_MEI && X86
1597	select WATCHDOG_CORE
1598	help
1599	  A device driver for the Intel MEI iAMT watchdog.
1600
1601	  The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1602	  Whenever the OS hangs or crashes, iAMT will send an event
1603	  to any subscriber to this event. The watchdog doesn't reset the
1604	  the platform.
1605
1606	  To compile this driver as a module, choose M here:
1607	  the module will be called mei_wdt.
1608
1609config NI903X_WDT
1610	tristate "NI 903x/913x Watchdog"
1611	depends on X86 && ACPI
1612	select WATCHDOG_CORE
1613	help
1614	  This is the driver for the watchdog timer on the National Instruments
1615	  903x/913x real-time controllers.
1616
1617	  To compile this driver as a module, choose M here: the module will be
1618	  called ni903x_wdt.
1619
1620config NIC7018_WDT
1621	tristate "NIC7018 Watchdog"
1622	depends on X86 && ACPI
1623	select WATCHDOG_CORE
1624	help
1625	  Support for National Instruments NIC7018 Watchdog.
1626
1627	  To compile this driver as a module, choose M here: the module will be
1628	  called nic7018_wdt.
1629
1630# M68K Architecture
1631
1632config M54xx_WATCHDOG
1633	tristate "MCF54xx watchdog support"
1634	depends on M548x
1635	help
1636	  To compile this driver as a module, choose M here: the
1637	  module will be called m54xx_wdt.
1638
1639# MicroBlaze Architecture
1640
1641# MIPS Architecture
1642
1643config ATH79_WDT
1644	tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1645	depends on ATH79 || (ARM && COMPILE_TEST)
1646	help
1647	  Hardware driver for the built-in watchdog timer on the Atheros
1648	  AR71XX/AR724X/AR913X SoCs.
1649
1650config BCM47XX_WDT
1651	tristate "Broadcom BCM47xx Watchdog Timer"
1652	depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1653	select WATCHDOG_CORE
1654	help
1655	  Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1656
1657config RC32434_WDT
1658	tristate "IDT RC32434 SoC Watchdog Timer"
1659	depends on MIKROTIK_RB532
1660	help
1661	  Hardware driver for the IDT RC32434 SoC built-in
1662	  watchdog timer.
1663
1664	  To compile this driver as a module, choose M here: the
1665	  module will be called rc32434_wdt.
1666
1667config INDYDOG
1668	tristate "Indy/I2 Hardware Watchdog"
1669	depends on SGI_HAS_INDYDOG
1670	help
1671	  Hardware driver for the Indy's/I2's watchdog. This is a
1672	  watchdog timer that will reboot the machine after a 60 second
1673	  timer expired and no process has written to /dev/watchdog during
1674	  that time.
1675
1676config JZ4740_WDT
1677	tristate "Ingenic jz4740 SoC hardware watchdog"
1678	depends on MIPS
1679	depends on COMMON_CLK
1680	select WATCHDOG_CORE
1681	select MFD_SYSCON
1682	help
1683	  Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1684
1685config WDT_MTX1
1686	tristate "MTX-1 Hardware Watchdog"
1687	depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1688	help
1689	  Hardware driver for the MTX-1 boards. This is a watchdog timer that
1690	  will reboot the machine after a 100 seconds timer expired.
1691
1692config SIBYTE_WDOG
1693	tristate "Sibyte SoC hardware watchdog"
1694	depends on CPU_SB1 || (MIPS && COMPILE_TEST)
1695	help
1696	  Watchdog driver for the built in watchdog hardware in Sibyte
1697	  SoC processors.  There are apparently two watchdog timers
1698	  on such processors; this driver supports only the first one,
1699	  because currently Linux only supports exporting one watchdog
1700	  to userspace.
1701
1702	  To compile this driver as a loadable module, choose M here.
1703	  The module will be called sb_wdog.
1704
1705config AR7_WDT
1706	tristate "TI AR7 Watchdog Timer"
1707	depends on AR7 || (MIPS && COMPILE_TEST)
1708	help
1709	  Hardware driver for the TI AR7 Watchdog Timer.
1710
1711config TXX9_WDT
1712	tristate "Toshiba TXx9 Watchdog Timer"
1713	depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
1714	select WATCHDOG_CORE
1715	help
1716	  Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1717
1718config OCTEON_WDT
1719	tristate "Cavium OCTEON SOC family Watchdog Timer"
1720	depends on CAVIUM_OCTEON_SOC
1721	default y
1722	select WATCHDOG_CORE
1723	select EXPORT_UASM if OCTEON_WDT = m
1724	help
1725	  Hardware driver for OCTEON's on chip watchdog timer.
1726	  Enables the watchdog for all cores running Linux. It
1727	  installs a NMI handler and pokes the watchdog based on an
1728	  interrupt.  On first expiration of the watchdog, the
1729	  interrupt handler pokes it.  The second expiration causes an
1730	  NMI that prints a message. The third expiration causes a
1731	  global soft reset.
1732
1733	  When userspace has /dev/watchdog open, no poking is done
1734	  from the first interrupt, it is then only poked when the
1735	  device is written.
1736
1737config BCM63XX_WDT
1738	tristate "Broadcom BCM63xx hardware watchdog"
1739	depends on BCM63XX
1740	help
1741	  Watchdog driver for the built in watchdog hardware in Broadcom
1742	  BCM63xx SoC.
1743
1744	  To compile this driver as a loadable module, choose M here.
1745	  The module will be called bcm63xx_wdt.
1746
1747config BCM2835_WDT
1748	tristate "Broadcom BCM2835 hardware watchdog"
1749	depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1750	select WATCHDOG_CORE
1751	help
1752	  Watchdog driver for the built in watchdog hardware in Broadcom
1753	  BCM2835 SoC.
1754
1755	  To compile this driver as a loadable module, choose M here.
1756	  The module will be called bcm2835_wdt.
1757
1758config BCM_KONA_WDT
1759	tristate "BCM Kona Watchdog"
1760	depends on ARCH_BCM_MOBILE || COMPILE_TEST
1761	select WATCHDOG_CORE
1762	help
1763	  Support for the watchdog timer on the following Broadcom BCM281xx
1764	  family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1765	  BCM28155 variants.
1766
1767	  Say 'Y' or 'M' here to enable the driver. The module will be called
1768	  bcm_kona_wdt.
1769
1770config BCM_KONA_WDT_DEBUG
1771	bool "DEBUGFS support for BCM Kona Watchdog"
1772	depends on BCM_KONA_WDT
1773	help
1774	  If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1775	  access to the driver's internal data structures as well as watchdog
1776	  timer hardware registres.
1777
1778	  If in doubt, say 'N'.
1779
1780config BCM7038_WDT
1781	tristate "BCM7038 Watchdog"
1782	select WATCHDOG_CORE
1783	depends on HAS_IOMEM
1784	depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1785	help
1786	 Watchdog driver for the built-in hardware in Broadcom 7038 and
1787	 later SoCs used in set-top boxes.  BCM7038 was made public
1788	 during the 2004 CES, and since then, many Broadcom chips use this
1789	 watchdog block, including some cable modem chips.
1790
1791config IMGPDC_WDT
1792	tristate "Imagination Technologies PDC Watchdog Timer"
1793	depends on HAS_IOMEM
1794	depends on MIPS || COMPILE_TEST
1795	select WATCHDOG_CORE
1796	help
1797	  Driver for Imagination Technologies PowerDown Controller
1798	  Watchdog Timer.
1799
1800	  To compile this driver as a loadable module, choose M here.
1801	  The module will be called imgpdc_wdt.
1802
1803config LANTIQ_WDT
1804	tristate "Lantiq SoC watchdog"
1805	depends on LANTIQ
1806	select WATCHDOG_CORE
1807	help
1808	  Hardware driver for the Lantiq SoC Watchdog Timer.
1809
1810config LOONGSON1_WDT
1811	tristate "Loongson1 SoC hardware watchdog"
1812	depends on MACH_LOONGSON32
1813	select WATCHDOG_CORE
1814	help
1815	  Hardware driver for the Loongson1 SoC Watchdog Timer.
1816
1817config RALINK_WDT
1818	tristate "Ralink SoC watchdog"
1819	select WATCHDOG_CORE
1820	depends on RALINK
1821	help
1822	  Hardware driver for the Ralink SoC Watchdog Timer.
1823
1824config MT7621_WDT
1825	tristate "Mediatek SoC watchdog"
1826	select WATCHDOG_CORE
1827	depends on SOC_MT7620 || SOC_MT7621
1828	help
1829	  Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1830
1831config PIC32_WDT
1832	tristate "Microchip PIC32 hardware watchdog"
1833	select WATCHDOG_CORE
1834	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1835	help
1836	  Watchdog driver for the built in watchdog hardware in a PIC32.
1837
1838	  Configuration bits must be set appropriately for the watchdog to be
1839	  controlled by this driver.
1840
1841	  To compile this driver as a loadable module, choose M here.
1842	  The module will be called pic32-wdt.
1843
1844config PIC32_DMT
1845	tristate "Microchip PIC32 Deadman Timer"
1846	select WATCHDOG_CORE
1847	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1848	help
1849	  Watchdog driver for PIC32 instruction fetch counting timer. This specific
1850	  timer is typically be used in misson critical and safety critical
1851	  applications, where any single failure of the software functionality
1852	  and sequencing must be detected.
1853
1854	  To compile this driver as a loadable module, choose M here.
1855	  The module will be called pic32-dmt.
1856
1857# PARISC Architecture
1858
1859# POWERPC Architecture
1860
1861config GEF_WDT
1862	tristate "GE Watchdog Timer"
1863	depends on GE_FPGA
1864	help
1865	  Watchdog timer found in a number of GE single board computers.
1866
1867config MPC5200_WDT
1868	bool "MPC52xx Watchdog Timer"
1869	depends on PPC_MPC52xx || COMPILE_TEST
1870	help
1871	  Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1872
1873config 8xxx_WDT
1874	tristate "MPC8xxx Platform Watchdog Timer"
1875	depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1876	select WATCHDOG_CORE
1877	help
1878	  This driver is for a SoC level watchdog that exists on some
1879	  Freescale PowerPC processors. So far this driver supports:
1880	  - MPC8xx watchdogs
1881	  - MPC83xx watchdogs
1882	  - MPC86xx watchdogs
1883
1884	  For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1885
1886config MV64X60_WDT
1887	tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1888	depends on MV64X60 || COMPILE_TEST
1889
1890config PIKA_WDT
1891	tristate "PIKA FPGA Watchdog"
1892	depends on WARP || (PPC64 && COMPILE_TEST)
1893	default y
1894	help
1895	  This enables the watchdog in the PIKA FPGA. Currently used on
1896	  the Warp platform.
1897
1898config BOOKE_WDT
1899	tristate "PowerPC Book-E Watchdog Timer"
1900	depends on BOOKE || 4xx
1901	select WATCHDOG_CORE
1902	help
1903	  Watchdog driver for PowerPC Book-E chips, such as the Freescale
1904	  MPC85xx SOCs and the IBM PowerPC 440.
1905
1906	  Please see Documentation/watchdog/watchdog-api.rst for
1907	  more information.
1908
1909config BOOKE_WDT_DEFAULT_TIMEOUT
1910	int "PowerPC Book-E Watchdog Timer Default Timeout"
1911	depends on BOOKE_WDT
1912	default 38 if PPC_FSL_BOOK3E
1913	range 0 63 if PPC_FSL_BOOK3E
1914	default 3 if !PPC_FSL_BOOK3E
1915	range 0 3 if !PPC_FSL_BOOK3E
1916	help
1917	  Select the default watchdog timer period to be used by the PowerPC
1918	  Book-E watchdog driver.  A watchdog "event" occurs when the bit
1919	  position represented by this number transitions from zero to one.
1920
1921	  For Freescale Book-E processors, this is a number between 0 and 63.
1922	  For other Book-E processors, this is a number between 0 and 3.
1923
1924	  The value can be overridden by the wdt_period command-line parameter.
1925
1926config MEN_A21_WDT
1927	tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1928	select WATCHDOG_CORE
1929	depends on GPIOLIB || COMPILE_TEST
1930	help
1931	  Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1932
1933	  The driver can also be built as a module. If so, the module will be
1934	  called mena21_wdt.
1935
1936	  If unsure select N here.
1937
1938# PPC64 Architecture
1939
1940config WATCHDOG_RTAS
1941	tristate "RTAS watchdog"
1942	depends on PPC_RTAS
1943	help
1944	  This driver adds watchdog support for the RTAS watchdog.
1945
1946	  To compile this driver as a module, choose M here. The module
1947	  will be called wdrtas.
1948
1949# S390 Architecture
1950
1951config DIAG288_WATCHDOG
1952	tristate "System z diag288 Watchdog"
1953	depends on S390
1954	select WATCHDOG_CORE
1955	help
1956	  IBM s/390 and zSeries machines running under z/VM 5.1 or later
1957	  provide a virtual watchdog timer to their guest that cause a
1958	  user define Control Program command to be executed after a
1959	  timeout.
1960	  LPAR provides a very similar interface. This driver handles
1961	  both.
1962
1963	  To compile this driver as a module, choose M here. The module
1964	  will be called diag288_wdt.
1965
1966# SUPERH (sh + sh64) Architecture
1967
1968config SH_WDT
1969	tristate "SuperH Watchdog"
1970	depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1971	select WATCHDOG_CORE
1972	help
1973	  This driver adds watchdog support for the integrated watchdog in the
1974	  SuperH processors. If you have one of these processors and wish
1975	  to have watchdog support enabled, say Y, otherwise say N.
1976
1977	  As a side note, saying Y here will automatically boost HZ to 1000
1978	  so that the timer has a chance to clear the overflow counter. On
1979	  slower systems (such as the SH-2 and SH-3) this will likely yield
1980	  some performance issues. As such, the WDT should be avoided here
1981	  unless it is absolutely necessary.
1982
1983	  To compile this driver as a module, choose M here: the
1984	  module will be called shwdt.
1985
1986# SPARC Architecture
1987
1988# SPARC64 Architecture
1989
1990config WATCHDOG_CP1XXX
1991	tristate "CP1XXX Hardware Watchdog support"
1992	depends on SPARC64 && PCI
1993	help
1994	  This is the driver for the hardware watchdog timers present on
1995	  Sun Microsystems CompactPCI models CP1400 and CP1500.
1996
1997	  To compile this driver as a module, choose M here: the
1998	  module will be called cpwatchdog.
1999
2000	  If you do not have a CompactPCI model CP1400 or CP1500, or
2001	  another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
2002	  you should say N to this option.
2003
2004config WATCHDOG_RIO
2005	tristate "RIO Hardware Watchdog support"
2006	depends on SPARC64 && PCI
2007	help
2008	  Say Y here to support the hardware watchdog capability on Sun RIO
2009	  machines.  The watchdog timeout period is normally one minute but
2010	  can be changed with a boot-time parameter.
2011
2012config WATCHDOG_SUN4V
2013	tristate "Sun4v Watchdog support"
2014	select WATCHDOG_CORE
2015	depends on SPARC64
2016	help
2017	  Say Y here to support the hypervisor watchdog capability embedded
2018	  in the SPARC sun4v architecture.
2019
2020	  To compile this driver as a module, choose M here. The module will
2021	  be called sun4v_wdt.
2022
2023# XTENSA Architecture
2024
2025# Xen Architecture
2026
2027config XEN_WDT
2028	tristate "Xen Watchdog support"
2029	depends on XEN
2030	select WATCHDOG_CORE
2031	help
2032	  Say Y here to support the hypervisor watchdog capability provided
2033	  by Xen 4.0 and newer.  The watchdog timeout period is normally one
2034	  minute but can be changed with a boot-time parameter.
2035
2036config UML_WATCHDOG
2037	tristate "UML watchdog"
2038	depends on UML || COMPILE_TEST
2039
2040#
2041# ISA-based Watchdog Cards
2042#
2043
2044comment "ISA-based Watchdog Cards"
2045	depends on ISA
2046
2047config PCWATCHDOG
2048	tristate "Berkshire Products ISA-PC Watchdog"
2049	depends on ISA
2050	help
2051	  This is the driver for the Berkshire Products ISA-PC Watchdog card.
2052	  This card simply watches your kernel to make sure it doesn't freeze,
2053	  and if it does, it reboots your computer after a certain amount of
2054	  time. This driver is like the WDT501 driver but for different
2055	  hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. The PC
2056	  watchdog cards can be ordered from <http://www.berkprod.com/>.
2057
2058	  To compile this driver as a module, choose M here: the
2059	  module will be called pcwd.
2060
2061	  Most people will say N.
2062
2063config MIXCOMWD
2064	tristate "Mixcom Watchdog"
2065	depends on ISA
2066	help
2067	  This is a driver for the Mixcom hardware watchdog cards.  This
2068	  watchdog simply watches your kernel to make sure it doesn't freeze,
2069	  and if it does, it reboots your computer after a certain amount of
2070	  time.
2071
2072	  To compile this driver as a module, choose M here: the
2073	  module will be called mixcomwd.
2074
2075	  Most people will say N.
2076
2077config WDT
2078	tristate "WDT Watchdog timer"
2079	depends on ISA
2080	help
2081	  If you have a WDT500P or WDT501P watchdog board, say Y here,
2082	  otherwise N. It is not possible to probe for this board, which means
2083	  that you have to inform the kernel about the IO port and IRQ that
2084	  is needed (you can do this via the io and irq parameters)
2085
2086	  To compile this driver as a module, choose M here: the
2087	  module will be called wdt.
2088
2089#
2090# PCI-based Watchdog Cards
2091#
2092
2093comment "PCI-based Watchdog Cards"
2094	depends on PCI
2095
2096config PCIPCWATCHDOG
2097	tristate "Berkshire Products PCI-PC Watchdog"
2098	depends on PCI
2099	help
2100	  This is the driver for the Berkshire Products PCI-PC Watchdog card.
2101	  This card simply watches your kernel to make sure it doesn't freeze,
2102	  and if it does, it reboots your computer after a certain amount of
2103	  time. The card can also monitor the internal temperature of the PC.
2104	  More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2105
2106	  To compile this driver as a module, choose M here: the
2107	  module will be called pcwd_pci.
2108
2109	  Most people will say N.
2110
2111config WDTPCI
2112	tristate "PCI-WDT500/501 Watchdog timer"
2113	depends on PCI
2114	help
2115	  If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2116
2117	  If you have a PCI-WDT501 watchdog board then you can enable the
2118	  temperature sensor by setting the type parameter to 501.
2119
2120	  If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2121	  can do this via the tachometer parameter. Only do this if you have a
2122	  fan tachometer actually set up.
2123
2124	  To compile this driver as a module, choose M here: the
2125	  module will be called wdt_pci.
2126
2127#
2128# USB-based Watchdog Cards
2129#
2130
2131comment "USB-based Watchdog Cards"
2132	depends on USB
2133
2134config USBPCWATCHDOG
2135	tristate "Berkshire Products USB-PC Watchdog"
2136	depends on USB
2137	help
2138	  This is the driver for the Berkshire Products USB-PC Watchdog card.
2139	  This card simply watches your kernel to make sure it doesn't freeze,
2140	  and if it does, it reboots your computer after a certain amount of
2141	  time. The card can also monitor the internal temperature of the PC.
2142	  More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2143
2144	  To compile this driver as a module, choose M here: the
2145	  module will be called pcwd_usb.
2146
2147	  Most people will say N.
2148
2149endif # WATCHDOG
2150