xref: /openbmc/linux/drivers/watchdog/Kconfig (revision a44e4f3a)
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	select WATCHDOG_CORE
211	help
212	  Support for the watchdog in the DA9062 and DA9061 PMICs.
213
214	  This driver can be built as a module. The module name is da9062_wdt.
215
216config GPIO_WATCHDOG
217	tristate "Watchdog device controlled through GPIO-line"
218	depends on OF_GPIO
219	select WATCHDOG_CORE
220	help
221	  If you say yes here you get support for watchdog device
222	  controlled through GPIO-line.
223
224config GPIO_WATCHDOG_ARCH_INITCALL
225	bool "Register the watchdog as early as possible"
226	depends on GPIO_WATCHDOG=y
227	help
228	  In some situations, the default initcall level (module_init)
229	  in not early enough in the boot process to avoid the watchdog
230	  to be triggered.
231	  If you say yes here, the initcall level would be raised to
232	  arch_initcall.
233	  If in doubt, say N.
234
235config MENF21BMC_WATCHDOG
236	tristate "MEN 14F021P00 BMC Watchdog"
237	depends on MFD_MENF21BMC || COMPILE_TEST
238	depends on I2C
239	select WATCHDOG_CORE
240	help
241	  Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
242
243	  This driver can also be built as a module. If so the module
244	  will be called menf21bmc_wdt.
245
246config MENZ069_WATCHDOG
247	tristate "MEN 16Z069 Watchdog"
248	depends on MCB
249	select WATCHDOG_CORE
250	help
251	  Say Y here to include support for the MEN 16Z069 Watchdog.
252
253	  This driver can also be built as a module. If so the module
254	  will be called menz069_wdt.
255
256config TANGOX_WATCHDOG
257	tristate "Sigma Designs SMP86xx/SMP87xx watchdog"
258	select WATCHDOG_CORE
259	depends on ARCH_TANGO || COMPILE_TEST
260	depends on HAS_IOMEM
261	help
262	  Support for the watchdog in Sigma Designs SMP86xx (tango3)
263	  and SMP87xx (tango4) family chips.
264
265	  This driver can be built as a module. The module name is tangox_wdt.
266
267config WDAT_WDT
268	tristate "ACPI Watchdog Action Table (WDAT)"
269	depends on ACPI
270	select WATCHDOG_CORE
271	select ACPI_WATCHDOG
272	help
273	  This driver adds support for systems with ACPI Watchdog Action
274	  Table (WDAT) table. Servers typically have this but it can be
275	  found on some desktop machines as well. This driver will take
276	  over the native iTCO watchdog driver found on many Intel CPUs.
277
278	  To compile this driver as module, choose M here: the module will
279	  be called wdat_wdt.
280
281config WM831X_WATCHDOG
282	tristate "WM831x watchdog"
283	depends on MFD_WM831X
284	select WATCHDOG_CORE
285	help
286	  Support for the watchdog in the WM831x AudioPlus PMICs.  When
287	  the watchdog triggers the system will be reset.
288
289config WM8350_WATCHDOG
290	tristate "WM8350 watchdog"
291	depends on MFD_WM8350
292	select WATCHDOG_CORE
293	help
294	  Support for the watchdog in the WM8350 AudioPlus PMIC.  When
295	  the watchdog triggers the system will be reset.
296
297config XILINX_WATCHDOG
298	tristate "Xilinx Watchdog timer"
299	depends on HAS_IOMEM
300	select WATCHDOG_CORE
301	help
302	  Watchdog driver for the xps_timebase_wdt ip core.
303
304	  To compile this driver as a module, choose M here: the
305	  module will be called of_xilinx_wdt.
306
307config ZIIRAVE_WATCHDOG
308	tristate "Zodiac RAVE Watchdog Timer"
309	depends on I2C
310	select WATCHDOG_CORE
311	help
312	  Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
313	  Processor.
314
315	  To compile this driver as a module, choose M here: the
316	  module will be called ziirave_wdt.
317
318config RAVE_SP_WATCHDOG
319	tristate "RAVE SP Watchdog timer"
320	depends on RAVE_SP_CORE
321	depends on NVMEM || !NVMEM
322	select WATCHDOG_CORE
323	help
324	  Support for the watchdog on RAVE SP device.
325
326config MLX_WDT
327	tristate "Mellanox Watchdog"
328	depends on MELLANOX_PLATFORM
329	select WATCHDOG_CORE
330	select REGMAP
331	help
332	  This is the driver for the hardware watchdog on Mellanox systems.
333	  If you are going to use it, say Y here, otherwise N.
334	  This driver can be used together with the watchdog daemon.
335	  It can also watch your kernel to make sure it doesn't freeze,
336	  and if it does, it reboots your system after a certain amount of
337	  time.
338
339	  To compile this driver as a module, choose M here: the
340	  module will be called mlx-wdt.
341
342# ALPHA Architecture
343
344# ARM Architecture
345
346config ARM_SP805_WATCHDOG
347	tristate "ARM SP805 Watchdog"
348	depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
349	select WATCHDOG_CORE
350	help
351	  ARM Primecell SP805 Watchdog timer. This will reboot your system when
352	  the timeout is reached.
353
354config ARM_SBSA_WATCHDOG
355	tristate "ARM SBSA Generic Watchdog"
356	depends on ARM64
357	depends on ARM_ARCH_TIMER
358	select WATCHDOG_CORE
359	help
360	  ARM SBSA Generic Watchdog has two stage timeouts:
361	  the first signal (WS0) is for alerting the system by interrupt,
362	  the second one (WS1) is a real hardware reset.
363	  More details: ARM DEN0029B - Server Base System Architecture (SBSA)
364
365	  This driver can operate ARM SBSA Generic Watchdog as a single stage
366	  or a two stages watchdog, it depends on the module parameter "action".
367
368	  Note: the maximum timeout in the two stages mode is half of that in
369	  the single stage mode.
370
371	  To compile this driver as module, choose M here: The module
372	  will be called sbsa_gwdt.
373
374config ARMADA_37XX_WATCHDOG
375	tristate "Armada 37xx watchdog"
376	depends on ARCH_MVEBU || COMPILE_TEST
377	select MFD_SYSCON
378	select WATCHDOG_CORE
379	help
380	   Say Y here to include support for the watchdog timer found on
381	   Marvell Armada 37xx SoCs.
382	   To compile this driver as a module, choose M here: the
383	   module will be called armada_37xx_wdt.
384
385config ASM9260_WATCHDOG
386	tristate "Alphascale ASM9260 watchdog"
387	depends on MACH_ASM9260 || COMPILE_TEST
388	depends on OF
389	select WATCHDOG_CORE
390	select RESET_CONTROLLER
391	help
392	  Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your
393	  system when the timeout is reached.
394
395config AT91RM9200_WATCHDOG
396	tristate "AT91RM9200 watchdog"
397	depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
398	help
399	  Watchdog timer embedded into AT91RM9200 chips. This will reboot your
400	  system when the timeout is reached.
401
402config AT91SAM9X_WATCHDOG
403	tristate "AT91SAM9X / AT91CAP9 watchdog"
404	depends on ARCH_AT91 || COMPILE_TEST
405	select WATCHDOG_CORE
406	help
407	  Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
408	  reboot your system when the timeout is reached.
409
410config SAMA5D4_WATCHDOG
411	tristate "Atmel SAMA5D4 Watchdog Timer"
412	depends on ARCH_AT91 || COMPILE_TEST
413	select WATCHDOG_CORE
414	help
415	  Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
416	  Its Watchdog Timer Mode Register can be written more than once.
417	  This will reboot your system when the timeout is reached.
418
419config CADENCE_WATCHDOG
420	tristate "Cadence Watchdog Timer"
421	depends on HAS_IOMEM
422	select WATCHDOG_CORE
423	help
424	  Say Y here if you want to include support for the watchdog
425	  timer in the Xilinx Zynq.
426
427config 21285_WATCHDOG
428	tristate "DC21285 watchdog"
429	depends on FOOTBRIDGE
430	help
431	  The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
432	  here if you wish to use this. Alternatively say M to compile the
433	  driver as a module, which will be called wdt285.
434
435	  This driver does not work on all machines. In particular, early CATS
436	  boards have hardware problems that will cause the machine to simply
437	  lock up if the watchdog fires.
438
439	  "If in doubt, leave it out" - say N.
440
441config 977_WATCHDOG
442	tristate "NetWinder WB83C977 watchdog"
443	depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
444	help
445	  Say Y here to include support for the WB977 watchdog included in
446	  NetWinder machines. Alternatively say M to compile the driver as
447	  a module, which will be called wdt977.
448
449	  Not sure? It's safe to say N.
450
451config FTWDT010_WATCHDOG
452	tristate "Faraday Technology FTWDT010 watchdog"
453	depends on ARM || COMPILE_TEST
454	select WATCHDOG_CORE
455	default ARCH_GEMINI
456	help
457	  Say Y here if to include support for the Faraday Technology
458	  FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
459	  family of devices.
460
461	  To compile this driver as a module, choose M here: the
462	  module will be called ftwdt010_wdt.
463
464config IXP4XX_WATCHDOG
465	tristate "IXP4xx Watchdog"
466	depends on ARCH_IXP4XX
467	help
468	  Say Y here if to include support for the watchdog timer
469	  in the Intel IXP4xx network processors. This driver can
470	  be built as a module by choosing M. The module will
471	  be called ixp4xx_wdt.
472
473	  Note: The internal IXP4xx watchdog does a soft CPU reset
474	  which doesn't reset any peripherals. There are circumstances
475	  where the watchdog will fail to reset the board correctly
476	  (e.g., if the boot ROM is in an unreadable state).
477
478	  Say N if you are unsure.
479
480config HAVE_S3C2410_WATCHDOG
481	bool
482	help
483	  This will include watchdog timer support for Samsung SoCs. If
484	  you want to include watchdog support for any machine, kindly
485	  select this in the respective mach-XXXX/Kconfig file.
486
487config S3C2410_WATCHDOG
488	tristate "S3C2410 Watchdog"
489	depends on HAVE_S3C2410_WATCHDOG || COMPILE_TEST
490	select WATCHDOG_CORE
491	select MFD_SYSCON if ARCH_EXYNOS
492	help
493	  Watchdog timer block in the Samsung SoCs. This will reboot
494	  the system when the timer expires with the watchdog enabled.
495
496	  The driver is limited by the speed of the system's PCLK
497	  signal, so with reasonably fast systems (PCLK around 50-66MHz)
498	  then watchdog intervals of over approximately 20seconds are
499	  unavailable.
500
501	  The driver can be built as a module by choosing M, and will
502	  be called s3c2410_wdt
503
504config SA1100_WATCHDOG
505	tristate "SA1100/PXA2xx watchdog"
506	depends on ARCH_SA1100 || ARCH_PXA
507	help
508	  Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
509	  reboot your system when timeout is reached.
510
511	  NOTE: once enabled, this timer cannot be disabled.
512
513	  To compile this driver as a module, choose M here: the
514	  module will be called sa1100_wdt.
515
516config DW_WATCHDOG
517	tristate "Synopsys DesignWare watchdog"
518	depends on HAS_IOMEM
519	select WATCHDOG_CORE
520	help
521	  Say Y here if to include support for the Synopsys DesignWare
522	  watchdog timer found in many chips.
523	  To compile this driver as a module, choose M here: the
524	  module will be called dw_wdt.
525
526config EP93XX_WATCHDOG
527	tristate "EP93xx Watchdog"
528	depends on ARCH_EP93XX || COMPILE_TEST
529	select WATCHDOG_CORE
530	help
531	  Say Y here if to include support for the watchdog timer
532	  embedded in the Cirrus Logic EP93xx family of devices.
533
534	  To compile this driver as a module, choose M here: the
535	  module will be called ep93xx_wdt.
536
537config OMAP_WATCHDOG
538	tristate "OMAP Watchdog"
539	depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
540	select WATCHDOG_CORE
541	help
542	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.  Say 'Y'
543	  here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
544
545config PNX4008_WATCHDOG
546	tristate "LPC32XX Watchdog"
547	depends on ARCH_LPC32XX || COMPILE_TEST
548	select WATCHDOG_CORE
549	help
550	  Say Y here if to include support for the watchdog timer
551	  in the LPC32XX processor.
552	  This driver can be built as a module by choosing M. The module
553	  will be called pnx4008_wdt.
554
555	  Say N if you are unsure.
556
557config IOP_WATCHDOG
558	tristate "IOP Watchdog"
559	depends on ARCH_IOP13XX
560	select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
561	help
562	  Say Y here if to include support for the watchdog timer
563	  in the Intel IOP3XX & IOP13XX I/O Processors.  This driver can
564	  be built as a module by choosing M. The module will
565	  be called iop_wdt.
566
567	  Note: The IOP13XX watchdog does an Internal Bus Reset which will
568	  affect both cores and the peripherals of the IOP.  The ATU-X
569	  and/or ATUe configuration registers will remain intact, but if
570	  operating as an Root Complex and/or Central Resource, the PCI-X
571	  and/or PCIe busses will also be reset.  THIS IS A VERY BIG HAMMER.
572
573config DAVINCI_WATCHDOG
574	tristate "DaVinci watchdog"
575	depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
576	select WATCHDOG_CORE
577	help
578	  Say Y here if to include support for the watchdog timer
579	  in the DaVinci DM644x/DM646x or Keystone processors.
580	  To compile this driver as a module, choose M here: the
581	  module will be called davinci_wdt.
582
583	  NOTE: once enabled, this timer cannot be disabled.
584	  Say N if you are unsure.
585
586config ORION_WATCHDOG
587	tristate "Orion watchdog"
588	depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || (COMPILE_TEST && !ARCH_EBSA110)
589	depends on ARM
590	select WATCHDOG_CORE
591	help
592	  Say Y here if to include support for the watchdog timer
593	  in the Marvell Orion5x and Kirkwood ARM SoCs.
594	  To compile this driver as a module, choose M here: the
595	  module will be called orion_wdt.
596
597config RN5T618_WATCHDOG
598	tristate "Ricoh RN5T618 watchdog"
599	depends on MFD_RN5T618 || COMPILE_TEST
600	select WATCHDOG_CORE
601	help
602	  If you say yes here you get support for watchdog on the Ricoh
603	  RN5T618 PMIC.
604
605	  This driver can also be built as a module.  If so, the module
606	  will be called rn5t618_wdt.
607
608config SUNXI_WATCHDOG
609	tristate "Allwinner SoCs watchdog support"
610	depends on ARCH_SUNXI || COMPILE_TEST
611	select WATCHDOG_CORE
612	help
613	  Say Y here to include support for the watchdog timer
614	  in Allwinner SoCs.
615	  To compile this driver as a module, choose M here: the
616	  module will be called sunxi_wdt.
617
618config COH901327_WATCHDOG
619	bool "ST-Ericsson COH 901 327 watchdog"
620	depends on ARCH_U300 || (ARM && COMPILE_TEST)
621	default y if MACH_U300
622	select WATCHDOG_CORE
623	help
624	  Say Y here to include Watchdog timer support for the
625	  watchdog embedded into the ST-Ericsson U300 series platforms.
626	  This watchdog is used to reset the system and thus cannot be
627	  compiled as a module.
628
629config NPCM7XX_WATCHDOG
630	tristate "Nuvoton NPCM750 watchdog"
631	depends on ARCH_NPCM || COMPILE_TEST
632	default y if ARCH_NPCM7XX
633	select WATCHDOG_CORE
634	help
635	  Say Y here to include Watchdog timer support for the
636	  watchdog embedded into the NPCM7xx.
637	  This watchdog is used to reset the system and thus cannot be
638	  compiled as a module.
639
640config TWL4030_WATCHDOG
641	tristate "TWL4030 Watchdog"
642	depends on TWL4030_CORE
643	select WATCHDOG_CORE
644	help
645	  Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
646	  watchdog timer support for TWL4030 chips.
647
648config STMP3XXX_RTC_WATCHDOG
649	tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
650	depends on RTC_DRV_STMP || COMPILE_TEST
651	select WATCHDOG_CORE
652	help
653	  Say Y here to include support for the watchdog timer inside
654	  the RTC for the STMP37XX/378X or i.MX23/28 SoC.
655	  To compile this driver as a module, choose M here: the
656	  module will be called stmp3xxx_rtc_wdt.
657
658config TS4800_WATCHDOG
659	tristate "TS-4800 Watchdog"
660	depends on HAS_IOMEM && OF
661	depends on SOC_IMX51 || COMPILE_TEST
662	select WATCHDOG_CORE
663	select MFD_SYSCON
664	help
665	  Technologic Systems TS-4800 has watchdog timer implemented in
666	  an external FPGA. Say Y here if you want to support for the
667	  watchdog timer on TS-4800 board.
668
669config TS72XX_WATCHDOG
670	tristate "TS-72XX SBC Watchdog"
671	depends on MACH_TS72XX || COMPILE_TEST
672	help
673	  Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
674	  watchdog timer implemented in a external CPLD chip. Say Y here
675	  if you want to support for the watchdog timer on TS-72XX boards.
676
677	  To compile this driver as a module, choose M here: the
678	  module will be called ts72xx_wdt.
679
680config MAX63XX_WATCHDOG
681	tristate "Max63xx watchdog"
682	depends on HAS_IOMEM
683	select WATCHDOG_CORE
684	help
685	  Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
686
687config MAX77620_WATCHDOG
688	tristate "Maxim Max77620 Watchdog Timer"
689	depends on MFD_MAX77620 || COMPILE_TEST
690	help
691	 This is the driver for the Max77620 watchdog timer.
692	 Say 'Y' here to enable the watchdog timer support for
693	 MAX77620 chips. To compile this driver as a module,
694	 choose M here: the module will be called max77620_wdt.
695
696config IMX2_WDT
697	tristate "IMX2+ Watchdog"
698	depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
699	select REGMAP_MMIO
700	select WATCHDOG_CORE
701	help
702	  This is the driver for the hardware watchdog
703	  on the Freescale IMX2 and later processors.
704	  If you have one of these processors and wish to have
705	  watchdog support enabled, say Y, otherwise say N.
706
707	  To compile this driver as a module, choose M here: the
708	  module will be called imx2_wdt.
709
710config IMX_SC_WDT
711	tristate "IMX SC Watchdog"
712	depends on HAVE_ARM_SMCCC
713	depends on IMX_SCU
714	select WATCHDOG_CORE
715	help
716	  This is the driver for the system controller watchdog
717	  on the NXP i.MX SoCs with system controller inside, the
718	  watchdog driver will call ARM SMC API and trap into
719	  ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
720	  will request system controller to execute the operations.
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 imx_sc_wdt.
726
727config IMX7ULP_WDT
728	tristate "IMX7ULP Watchdog"
729	depends on ARCH_MXC || COMPILE_TEST
730	select WATCHDOG_CORE
731	help
732	  This is the driver for the hardware watchdog on the Freescale
733	  IMX7ULP and later processors. If you have one of these
734	  processors and wish to have watchdog support enabled,
735	  say Y, otherwise say N.
736
737	  To compile this driver as a module, choose M here: the
738	  module will be called imx7ulp_wdt.
739
740config UX500_WATCHDOG
741	tristate "ST-Ericsson Ux500 watchdog"
742	depends on MFD_DB8500_PRCMU
743	select WATCHDOG_CORE
744	default y
745	help
746	  Say Y here to include Watchdog timer support for the watchdog
747	  existing in the prcmu of ST-Ericsson Ux500 series platforms.
748
749	  To compile this driver as a module, choose M here: the
750	  module will be called ux500_wdt.
751
752config RETU_WATCHDOG
753	tristate "Retu watchdog"
754	depends on MFD_RETU
755	select WATCHDOG_CORE
756	help
757	  Retu watchdog driver for Nokia Internet Tablets (770, N800,
758	  N810). At least on N800 the watchdog cannot be disabled, so
759	  this driver is essential and you should enable it.
760
761	  To compile this driver as a module, choose M here: the
762	  module will be called retu_wdt.
763
764config MOXART_WDT
765	tristate "MOXART watchdog"
766	depends on ARCH_MOXART || COMPILE_TEST
767	help
768	  Say Y here to include Watchdog timer support for the watchdog
769	  existing on the MOXA ART SoC series platforms.
770
771	  To compile this driver as a module, choose M here: the
772	  module will be called moxart_wdt.
773
774config SIRFSOC_WATCHDOG
775	tristate "SiRFSOC watchdog"
776	depends on ARCH_SIRF || COMPILE_TEST
777	select WATCHDOG_CORE
778	default y
779	help
780	  Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
781	  the watchdog triggers the system will be reset.
782
783config ST_LPC_WATCHDOG
784	tristate "STMicroelectronics LPC Watchdog"
785	depends on ARCH_STI || COMPILE_TEST
786	depends on OF
787	select WATCHDOG_CORE
788	help
789	  Say Y here to include STMicroelectronics Low Power Controller
790	  (LPC) based Watchdog timer support.
791
792	  To compile this driver as a module, choose M here: the
793	  module will be called st_lpc_wdt.
794
795config TEGRA_WATCHDOG
796	tristate "Tegra watchdog"
797	depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
798	select WATCHDOG_CORE
799	help
800	  Say Y here to include support for the watchdog timer
801	  embedded in NVIDIA Tegra SoCs.
802
803	  To compile this driver as a module, choose M here: the
804	  module will be called tegra_wdt.
805
806config QCOM_WDT
807	tristate "QCOM watchdog"
808	depends on HAS_IOMEM
809	depends on ARCH_QCOM || COMPILE_TEST
810	select WATCHDOG_CORE
811	help
812	  Say Y here to include Watchdog timer support for the watchdog found
813	  on QCOM chipsets.  Currently supported targets are the MSM8960,
814	  APQ8064, and IPQ8064.
815
816	  To compile this driver as a module, choose M here: the
817	  module will be called qcom_wdt.
818
819config MESON_GXBB_WATCHDOG
820	tristate "Amlogic Meson GXBB SoCs watchdog support"
821	depends on ARCH_MESON || COMPILE_TEST
822	select WATCHDOG_CORE
823	help
824	  Say Y here to include support for the watchdog timer
825	  in Amlogic Meson GXBB SoCs.
826	  To compile this driver as a module, choose M here: the
827	  module will be called meson_gxbb_wdt.
828
829config MESON_WATCHDOG
830	tristate "Amlogic Meson 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 SoCs.
836	  To compile this driver as a module, choose M here: the
837	  module will be called meson_wdt.
838
839config MEDIATEK_WATCHDOG
840	tristate "Mediatek SoCs watchdog support"
841	depends on ARCH_MEDIATEK || COMPILE_TEST
842	select WATCHDOG_CORE
843	help
844	  Say Y here to include support for the watchdog timer
845	  in Mediatek SoCs.
846	  To compile this driver as a module, choose M here: the
847	  module will be called mtk_wdt.
848
849config DIGICOLOR_WATCHDOG
850	tristate "Conexant Digicolor SoCs watchdog support"
851	depends on ARCH_DIGICOLOR || COMPILE_TEST
852	select WATCHDOG_CORE
853	help
854	  Say Y here to include support for the watchdog timer
855	  in Conexant Digicolor SoCs.
856	  To compile this driver as a module, choose M here: the
857	  module will be called digicolor_wdt.
858
859config LPC18XX_WATCHDOG
860	tristate "LPC18xx/43xx Watchdog"
861	depends on ARCH_LPC18XX || COMPILE_TEST
862	depends on HAS_IOMEM
863	select WATCHDOG_CORE
864	help
865	  Say Y here if to include support for the watchdog timer
866	  in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
867	  processors.
868	  To compile this driver as a module, choose M here: the
869	  module will be called lpc18xx_wdt.
870
871config ATLAS7_WATCHDOG
872	tristate "CSRatlas7 watchdog"
873	depends on ARCH_ATLAS7 || COMPILE_TEST
874	help
875	  Say Y here to include Watchdog timer support for the watchdog
876	  existing on the CSRatlas7 series platforms.
877
878	  To compile this driver as a module, choose M here: the
879	  module will be called atlas7_wdt.
880
881config RENESAS_WDT
882	tristate "Renesas WDT Watchdog"
883	depends on ARCH_RENESAS || COMPILE_TEST
884	select WATCHDOG_CORE
885	help
886	  This driver adds watchdog support for the integrated watchdogs in the
887	  Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
888
889config RENESAS_RZAWDT
890	tristate "Renesas RZ/A WDT Watchdog"
891	depends on ARCH_RENESAS || COMPILE_TEST
892	select WATCHDOG_CORE
893	help
894	  This driver adds watchdog support for the integrated watchdogs in the
895	  Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
896
897config ASPEED_WATCHDOG
898	tristate "Aspeed BMC watchdog support"
899	depends on ARCH_ASPEED || COMPILE_TEST
900	select WATCHDOG_CORE
901	help
902	  Say Y here to include support for the watchdog timer
903	  in Aspeed BMC SoCs.
904
905	  This driver is required to reboot the SoC.
906
907	  To compile this driver as a module, choose M here: the
908	  module will be called aspeed_wdt.
909
910config ZX2967_WATCHDOG
911	tristate "ZTE zx2967 SoCs watchdog support"
912	depends on ARCH_ZX
913	select WATCHDOG_CORE
914	help
915	  Say Y here to include support for the watchdog timer
916	  in ZTE zx2967 SoCs.
917	  To compile this driver as a module, choose M here: the
918	  module will be called zx2967_wdt.
919
920config STM32_WATCHDOG
921	tristate "STM32 Independent WatchDoG (IWDG) support"
922	depends on ARCH_STM32
923	select WATCHDOG_CORE
924	default y
925	help
926	  Say Y here to include support for the watchdog timer
927	  in stm32 SoCs.
928
929	  To compile this driver as a module, choose M here: the
930	  module will be called stm32_iwdg.
931
932config STPMIC1_WATCHDOG
933	tristate "STPMIC1 PMIC watchdog support"
934	depends on MFD_STPMIC1
935	select WATCHDOG_CORE
936	help
937	  Say Y here to include watchdog support embedded into STPMIC1 PMIC.
938	  If the watchdog timer expires, stpmic1 will shut down all its power
939	  supplies.
940
941	  To compile this driver as a module, choose M here: the
942	  module will be called spmic1_wdt.
943
944config UNIPHIER_WATCHDOG
945	tristate "UniPhier watchdog support"
946	depends on ARCH_UNIPHIER || COMPILE_TEST
947	depends on OF && MFD_SYSCON
948	select WATCHDOG_CORE
949	help
950	  Say Y here to include support watchdog timer embedded
951	  into the UniPhier system.
952
953	  To compile this driver as a module, choose M here: the
954	  module will be called uniphier_wdt.
955
956config RTD119X_WATCHDOG
957	bool "Realtek RTD119x/RTD129x watchdog support"
958	depends on ARCH_REALTEK || COMPILE_TEST
959	depends on OF
960	select WATCHDOG_CORE
961	default ARCH_REALTEK
962	help
963	  Say Y here to include support for the watchdog timer in
964	  Realtek RTD1295 SoCs.
965
966config SPRD_WATCHDOG
967	tristate "Spreadtrum watchdog support"
968	depends on ARCH_SPRD || COMPILE_TEST
969	select WATCHDOG_CORE
970	help
971	  Say Y here to include watchdog timer supported
972	  by Spreadtrum system.
973
974config PM8916_WATCHDOG
975	tristate "QCOM PM8916 pmic watchdog"
976	depends on OF && MFD_SPMI_PMIC
977	select WATCHDOG_CORE
978	help
979	  Say Y here to include support watchdog timer embedded into the
980	  pm8916 module.
981
982# X86 (i386 + ia64 + x86_64) Architecture
983
984config ACQUIRE_WDT
985	tristate "Acquire SBC Watchdog Timer"
986	depends on X86
987	---help---
988	  This is the driver for the hardware watchdog on Single Board
989	  Computers produced by Acquire Inc (and others). This watchdog
990	  simply watches your kernel to make sure it doesn't freeze, and if
991	  it does, it reboots your computer after a certain amount of time.
992
993	  To compile this driver as a module, choose M here: the
994	  module will be called acquirewdt.
995
996	  Most people will say N.
997
998config ADVANTECH_WDT
999	tristate "Advantech SBC Watchdog Timer"
1000	depends on X86
1001	help
1002	  If you are configuring a Linux kernel for the Advantech single-board
1003	  computer, say `Y' here to support its built-in watchdog timer
1004	  feature. More information can be found at
1005	  <http://www.advantech.com.tw/products/>
1006
1007config ALIM1535_WDT
1008	tristate "ALi M1535 PMU Watchdog Timer"
1009	depends on X86 && PCI
1010	---help---
1011	  This is the driver for the hardware watchdog on the ALi M1535 PMU.
1012
1013	  To compile this driver as a module, choose M here: the
1014	  module will be called alim1535_wdt.
1015
1016	  Most people will say N.
1017
1018config ALIM7101_WDT
1019	tristate "ALi M7101 PMU Computer Watchdog"
1020	depends on PCI
1021	help
1022	  This is the driver for the hardware watchdog on the ALi M7101 PMU
1023	  as used in the x86 Cobalt servers and also found in some
1024	  SPARC Netra servers too.
1025
1026	  To compile this driver as a module, choose M here: the
1027	  module will be called alim7101_wdt.
1028
1029	  Most people will say N.
1030
1031config EBC_C384_WDT
1032	tristate "WinSystems EBC-C384 Watchdog Timer"
1033	depends on X86
1034	select ISA_BUS_API
1035	select WATCHDOG_CORE
1036	help
1037	  Enables watchdog timer support for the watchdog timer on the
1038	  WinSystems EBC-C384 motherboard. The timeout may be configured via
1039	  the timeout module parameter.
1040
1041config F71808E_WDT
1042	tristate "Fintek F718xx, F818xx Super I/O Watchdog"
1043	depends on X86
1044	help
1045	  This is the driver for the hardware watchdog on the Fintek F71808E,
1046	  F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and
1047	  F81866 Super I/O controllers.
1048
1049	  You can compile this driver directly into the kernel, or use
1050	  it as a module.  The module will be called f71808e_wdt.
1051
1052config SP5100_TCO
1053	tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
1054	depends on X86 && PCI
1055	select WATCHDOG_CORE
1056	---help---
1057	  Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
1058	  (Total Cost of Ownership) timer is a watchdog timer that will reboot
1059	  the machine after its expiration. The expiration time can be
1060	  configured with the "heartbeat" parameter.
1061
1062	  To compile this driver as a module, choose M here: the
1063	  module will be called sp5100_tco.
1064
1065config GEODE_WDT
1066	tristate "AMD Geode CS5535/CS5536 Watchdog"
1067	depends on CS5535_MFGPT
1068	help
1069	  This driver enables a watchdog capability built into the
1070	  CS5535/CS5536 companion chips for the AMD Geode GX and LX
1071	  processors.  This watchdog watches your kernel to make sure
1072	  it doesn't freeze, and if it does, it reboots your computer after
1073	  a certain amount of time.
1074
1075	  You can compile this driver directly into the kernel, or use
1076	  it as a module.  The module will be called geodewdt.
1077
1078config SC520_WDT
1079	tristate "AMD Elan SC520 processor Watchdog"
1080	depends on MELAN || COMPILE_TEST
1081	help
1082	  This is the driver for the hardware watchdog built in to the
1083	  AMD "Elan" SC520 microcomputer commonly used in embedded systems.
1084	  This watchdog simply watches your kernel to make sure it doesn't
1085	  freeze, and if it does, it reboots your computer after a certain
1086	  amount of time.
1087
1088	  You can compile this driver directly into the kernel, or use
1089	  it as a module.  The module will be called sc520_wdt.
1090
1091config SBC_FITPC2_WATCHDOG
1092	tristate "Compulab SBC-FITPC2 watchdog"
1093	depends on X86
1094	---help---
1095	  This is the driver for the built-in watchdog timer on the fit-PC2,
1096	  fit-PC2i, CM-iAM single-board computers made by Compulab.
1097
1098	  It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
1099	  When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
1100
1101	  Entering BIOS setup temporary disables watchdog operation regardless to current state,
1102	  so system will not be restarted while user in BIOS setup.
1103
1104	  Once watchdog was enabled the system will be restarted every
1105	  "Watchdog Timer Value" period, so to prevent it user can restart or
1106	  disable the watchdog.
1107
1108	  To compile this driver as a module, choose M here: the
1109	  module will be called sbc_fitpc2_wdt.
1110
1111	  Most people will say N.
1112
1113config EUROTECH_WDT
1114	tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1115	depends on X86
1116	help
1117	  Enable support for the watchdog timer on the Eurotech CPU-1220 and
1118	  CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
1119	  information are at <http://www.eurotech.it/>.
1120
1121config IB700_WDT
1122	tristate "IB700 SBC Watchdog Timer"
1123	depends on X86
1124	---help---
1125	  This is the driver for the hardware watchdog on the IB700 Single
1126	  Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
1127	  simply watches your kernel to make sure it doesn't freeze, and if
1128	  it does, it reboots your computer after a certain amount of time.
1129
1130	  This driver is like the WDT501 driver but for slightly different hardware.
1131
1132	  To compile this driver as a module, choose M here: the
1133	  module will be called ib700wdt.
1134
1135	  Most people will say N.
1136
1137config IBMASR
1138	tristate "IBM Automatic Server Restart"
1139	depends on X86
1140	help
1141	  This is the driver for the IBM Automatic Server Restart watchdog
1142	  timer built-in into some eServer xSeries machines.
1143
1144	  To compile this driver as a module, choose M here: the
1145	  module will be called ibmasr.
1146
1147config WAFER_WDT
1148	tristate "ICP Single Board Computer Watchdog Timer"
1149	depends on X86
1150	help
1151	  This is a driver for the hardware watchdog on the ICP Single
1152	  Board Computer. This driver is working on (at least) the following
1153	  IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1154
1155	  To compile this driver as a module, choose M here: the
1156	  module will be called wafer5823wdt.
1157
1158config I6300ESB_WDT
1159	tristate "Intel 6300ESB Timer/Watchdog"
1160	depends on PCI
1161	select WATCHDOG_CORE
1162	---help---
1163	  Hardware driver for the watchdog timer built into the Intel
1164	  6300ESB controller hub.
1165
1166	  To compile this driver as a module, choose M here: the
1167	  module will be called i6300esb.
1168
1169config IE6XX_WDT
1170	tristate "Intel Atom E6xx Watchdog"
1171	depends on X86 && PCI
1172	select WATCHDOG_CORE
1173	select MFD_CORE
1174	select LPC_SCH
1175	---help---
1176	  Hardware driver for the watchdog timer built into the Intel
1177	  Atom E6XX (TunnelCreek) processor.
1178
1179	  To compile this driver as a module, choose M here: the
1180	  module will be called ie6xx_wdt.
1181
1182config INTEL_SCU_WATCHDOG
1183	bool "Intel SCU Watchdog for Mobile Platforms"
1184	depends on X86_INTEL_MID
1185	---help---
1186	  Hardware driver for the watchdog time built into the Intel SCU
1187	  for Intel Mobile Platforms.
1188
1189	  To compile this driver as a module, choose M here.
1190
1191config INTEL_MID_WATCHDOG
1192	tristate "Intel MID Watchdog Timer"
1193	depends on X86_INTEL_MID
1194	select WATCHDOG_CORE
1195	---help---
1196	  Watchdog timer driver built into the Intel SCU for Intel MID
1197	  Platforms.
1198
1199	  This driver currently supports only the watchdog evolution
1200	  implementation in SCU, available for Merrifield generation.
1201
1202	  To compile this driver as a module, choose M here.
1203
1204config ITCO_WDT
1205	tristate "Intel TCO Timer/Watchdog"
1206	depends on (X86 || IA64) && PCI
1207	select WATCHDOG_CORE
1208	depends on I2C || I2C=n
1209	select LPC_ICH if !EXPERT
1210	select I2C_I801 if !EXPERT && I2C
1211	---help---
1212	  Hardware driver for the intel TCO timer based watchdog devices.
1213	  These drivers are included in the Intel 82801 I/O Controller
1214	  Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1215	  controller hub.
1216
1217	  The TCO (Total Cost of Ownership) timer is a watchdog timer
1218	  that will reboot the machine after its second expiration. The
1219	  expiration time can be configured with the "heartbeat" parameter.
1220
1221	  On some motherboards the driver may fail to reset the chipset's
1222	  NO_REBOOT flag which prevents the watchdog from rebooting the
1223	  machine. If this is the case you will get a kernel message like
1224	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1225
1226	  To compile this driver as a module, choose M here: the
1227	  module will be called iTCO_wdt.
1228
1229config ITCO_VENDOR_SUPPORT
1230	bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1231	depends on ITCO_WDT
1232	---help---
1233	  Add vendor specific support to the intel TCO timer based watchdog
1234	  devices. At this moment we only have additional support for some
1235	  SuperMicro Inc. motherboards.
1236
1237config IT8712F_WDT
1238	tristate "IT8712F (Smart Guardian) Watchdog Timer"
1239	depends on X86
1240	---help---
1241	  This is the driver for the built-in watchdog timer on the IT8712F
1242	  Super I/0 chipset used on many motherboards.
1243
1244	  If the driver does not work, then make sure that the game port in
1245	  the BIOS is enabled.
1246
1247	  To compile this driver as a module, choose M here: the
1248	  module will be called it8712f_wdt.
1249
1250config IT87_WDT
1251	tristate "IT87 Watchdog Timer"
1252	depends on X86
1253	select WATCHDOG_CORE
1254	---help---
1255	  This is the driver for the hardware watchdog on the ITE IT8607,
1256	  IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1257	  IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1258	  IT8783 Super I/O chips.
1259
1260	  This watchdog simply watches your kernel to make sure it doesn't
1261	  freeze, and if it does, it reboots your computer after a certain
1262	  amount of time.
1263
1264	  To compile this driver as a module, choose M here: the module will
1265	  be called it87_wdt.
1266
1267config HP_WATCHDOG
1268	tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1269	select WATCHDOG_CORE
1270	depends on X86 && PCI
1271	help
1272	  A software monitoring watchdog and NMI handling driver. This driver
1273	  will detect lockups and provide a stack trace. This is a driver that
1274	  will only load on an HP ProLiant system with a minimum of iLO2 support.
1275	  To compile this driver as a module, choose M here: the module will be
1276	  called hpwdt.
1277
1278config HPWDT_NMI_DECODING
1279	bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1280	depends on HP_WATCHDOG
1281	default y
1282	help
1283	  Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1284	  "Generate NMI to System" virtual button.  When an NMI is claimed
1285	  by the driver, panic is called.
1286
1287config KEMPLD_WDT
1288	tristate "Kontron COM Watchdog Timer"
1289	depends on MFD_KEMPLD
1290	select WATCHDOG_CORE
1291	help
1292	  Support for the PLD watchdog on some Kontron ETX and COMexpress
1293	  (ETXexpress) modules
1294
1295	  This driver can also be built as a module. If so, the module will be
1296	  called kempld_wdt.
1297
1298config SC1200_WDT
1299	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1300	depends on X86
1301	help
1302	  This is a driver for National Semiconductor PC87307/PC97307 hardware
1303	  watchdog cards as found on the SC1200. This watchdog is mainly used
1304	  for power management purposes and can be used to power down the device
1305	  during inactivity periods (includes interrupt activity monitoring).
1306
1307	  To compile this driver as a module, choose M here: the
1308	  module will be called sc1200wdt.
1309
1310	  Most people will say N.
1311
1312config SCx200_WDT
1313	tristate "National Semiconductor SCx200 Watchdog"
1314	depends on SCx200 && PCI
1315	help
1316	  Enable the built-in watchdog timer support on the National
1317	  Semiconductor SCx200 processors.
1318
1319	  If compiled as a module, it will be called scx200_wdt.
1320
1321config PC87413_WDT
1322	tristate "NS PC87413 watchdog"
1323	depends on X86
1324	---help---
1325	  This is the driver for the hardware watchdog on the PC87413 chipset
1326	  This watchdog simply watches your kernel to make sure it doesn't
1327	  freeze, and if it does, it reboots your computer after a certain
1328	  amount of time.
1329
1330	  To compile this driver as a module, choose M here: the
1331	  module will be called pc87413_wdt.
1332
1333	  Most people will say N.
1334
1335config NV_TCO
1336	tristate "nVidia TCO Timer/Watchdog"
1337	depends on X86 && PCI
1338	---help---
1339	  Hardware driver for the TCO timer built into the nVidia Hub family
1340	  (such as the MCP51).  The TCO (Total Cost of Ownership) timer is a
1341	  watchdog timer that will reboot the machine after its second
1342	  expiration. The expiration time can be configured with the
1343	  "heartbeat" parameter.
1344
1345	  On some motherboards the driver may fail to reset the chipset's
1346	  NO_REBOOT flag which prevents the watchdog from rebooting the
1347	  machine. If this is the case you will get a kernel message like
1348	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1349
1350	  To compile this driver as a module, choose M here: the
1351	  module will be called nv_tco.
1352
1353config RDC321X_WDT
1354	tristate "RDC R-321x SoC watchdog"
1355	depends on X86_RDC321X || COMPILE_TEST
1356	depends on PCI
1357	help
1358	  This is the driver for the built in hardware watchdog
1359	  in the RDC R-321x SoC.
1360
1361	  To compile this driver as a module, choose M here: the
1362	  module will be called rdc321x_wdt.
1363
1364config 60XX_WDT
1365	tristate "SBC-60XX Watchdog Timer"
1366	depends on X86
1367	help
1368	  This driver can be used with the watchdog timer found on some
1369	  single board computers, namely the 6010 PII based computer.
1370	  It may well work with other cards.  It reads port 0x443 to enable
1371	  and re-set the watchdog timer, and reads port 0x45 to disable
1372	  the watchdog.  If you have a card that behave in similar ways,
1373	  you can probably make this driver work with your card as well.
1374
1375	  You can compile this driver directly into the kernel, or use
1376	  it as a module.  The module will be called sbc60xxwdt.
1377
1378config SBC8360_WDT
1379	tristate "SBC8360 Watchdog Timer"
1380	depends on X86_32
1381	---help---
1382
1383	  This is the driver for the hardware watchdog on the SBC8360 Single
1384	  Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1385
1386	  To compile this driver as a module, choose M here: the
1387	  module will be called sbc8360.
1388
1389	  Most people will say N.
1390
1391config SBC7240_WDT
1392	tristate "SBC Nano 7240 Watchdog Timer"
1393	depends on X86_32 && !UML
1394	---help---
1395	  This is the driver for the hardware watchdog found on the IEI
1396	  single board computers EPIC Nano 7240 (and likely others). This
1397	  watchdog simply watches your kernel to make sure it doesn't freeze,
1398	  and if it does, it reboots your computer after a certain amount of
1399	  time.
1400
1401	  To compile this driver as a module, choose M here: the
1402	  module will be called sbc7240_wdt.
1403
1404config CPU5_WDT
1405	tristate "SMA CPU5 Watchdog"
1406	depends on X86
1407	---help---
1408	  TBD.
1409	  To compile this driver as a module, choose M here: the
1410	  module will be called cpu5wdt.
1411
1412config SMSC_SCH311X_WDT
1413	tristate "SMSC SCH311X Watchdog Timer"
1414	depends on X86
1415	---help---
1416	  This is the driver for the hardware watchdog timer on the
1417	  SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1418	  (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1419	  serial ports).
1420
1421	  To compile this driver as a module, choose M here: the
1422	  module will be called sch311x_wdt.
1423
1424config SMSC37B787_WDT
1425	tristate "Winbond SMsC37B787 Watchdog Timer"
1426	depends on X86
1427	---help---
1428	  This is the driver for the hardware watchdog component on the
1429	  Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1430	  from Vision Systems and maybe others.
1431
1432	  This watchdog simply watches your kernel to make sure it doesn't
1433	  freeze, and if it does, it reboots your computer after a certain
1434	  amount of time.
1435
1436	  Usually a userspace daemon will notify the kernel WDT driver that
1437	  userspace is still alive, at regular intervals.
1438
1439	  To compile this driver as a module, choose M here: the
1440	  module will be called smsc37b787_wdt.
1441
1442	  Most people will say N.
1443
1444config TQMX86_WDT
1445	tristate "TQ-Systems TQMX86 Watchdog Timer"
1446	depends on X86
1447	help
1448	This is the driver for the hardware watchdog timer in the TQMX86 IO
1449	controller found on some of their ComExpress Modules.
1450
1451	To compile this driver as a module, choose M here; the module
1452	will be called tqmx86_wdt.
1453
1454	Most people will say N.
1455
1456config VIA_WDT
1457	tristate "VIA Watchdog Timer"
1458	depends on X86 && PCI
1459	select WATCHDOG_CORE
1460	---help---
1461	This is the driver for the hardware watchdog timer on VIA
1462	southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1463
1464	To compile this driver as a module, choose M here; the module
1465	will be called via_wdt.
1466
1467	Most people will say N.
1468
1469config W83627HF_WDT
1470	tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1471	depends on X86
1472	select WATCHDOG_CORE
1473	---help---
1474	  This is the driver for the hardware watchdog on the following
1475	  Super I/O chips.
1476		W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1477		W83637HF
1478		W83667HG/HG-B
1479		W83687THF
1480		W83697HF
1481		W83697UG
1482		NCT6775
1483		NCT6776
1484		NCT6779
1485		NCT6791
1486		NCT6792
1487		NCT6102D/04D/06D
1488
1489	  This watchdog simply watches your kernel to make sure it doesn't
1490	  freeze, and if it does, it reboots your computer after a certain
1491	  amount of time.
1492
1493	  To compile this driver as a module, choose M here: the
1494	  module will be called w83627hf_wdt.
1495
1496	  Most people will say N.
1497
1498config W83877F_WDT
1499	tristate "W83877F (EMACS) Watchdog Timer"
1500	depends on X86
1501	---help---
1502	  This is the driver for the hardware watchdog on the W83877F chipset
1503	  as used in EMACS PC-104 motherboards (and likely others).  This
1504	  watchdog simply watches your kernel to make sure it doesn't freeze,
1505	  and if it does, it reboots your computer after a certain amount of
1506	  time.
1507
1508	  To compile this driver as a module, choose M here: the
1509	  module will be called w83877f_wdt.
1510
1511	  Most people will say N.
1512
1513config W83977F_WDT
1514	tristate "W83977F (PCM-5335) Watchdog Timer"
1515	depends on X86
1516	---help---
1517	  This is the driver for the hardware watchdog on the W83977F I/O chip
1518	  as used in AAEON's PCM-5335 SBC (and likely others).  This
1519	  watchdog simply watches your kernel to make sure it doesn't freeze,
1520	  and if it does, it reboots your computer after a certain amount of
1521	  time.
1522
1523	  To compile this driver as a module, choose M here: the
1524	  module will be called w83977f_wdt.
1525
1526config MACHZ_WDT
1527	tristate "ZF MachZ Watchdog"
1528	depends on X86
1529	---help---
1530	  If you are using a ZF Micro MachZ processor, say Y here, otherwise
1531	  N.  This is the driver for the watchdog timer built-in on that
1532	  processor using ZF-Logic interface.  This watchdog simply watches
1533	  your kernel to make sure it doesn't freeze, and if it does, it
1534	  reboots your computer after a certain amount of time.
1535
1536	  To compile this driver as a module, choose M here: the
1537	  module will be called machzwd.
1538
1539config SBC_EPX_C3_WATCHDOG
1540	tristate "Winsystems SBC EPX-C3 watchdog"
1541	depends on X86
1542	---help---
1543	  This is the driver for the built-in watchdog timer on the EPX-C3
1544	  Single-board computer made by Winsystems, Inc.
1545
1546	  *Note*: This hardware watchdog is not probeable and thus there
1547	  is no way to know if writing to its IO address will corrupt
1548	  your system or have any real effect.  The only way to be sure
1549	  that this driver does what you want is to make sure you
1550	  are running it on an EPX-C3 from Winsystems with the watchdog
1551	  timer at IO address 0x1ee and 0x1ef.  It will write to both those
1552	  IO ports.  Basically, the assumption is made that if you compile
1553	  this driver into your kernel and/or load it as a module, that you
1554	  know what you are doing and that you are in fact running on an
1555	  EPX-C3 board!
1556
1557	  To compile this driver as a module, choose M here: the
1558	  module will be called sbc_epx_c3.
1559
1560config INTEL_MEI_WDT
1561	tristate "Intel MEI iAMT Watchdog"
1562	depends on INTEL_MEI && X86
1563	select WATCHDOG_CORE
1564	---help---
1565	  A device driver for the Intel MEI iAMT watchdog.
1566
1567	  The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1568	  Whenever the OS hangs or crashes, iAMT will send an event
1569	  to any subscriber to this event. The watchdog doesn't reset the
1570	  the platform.
1571
1572	  To compile this driver as a module, choose M here:
1573	  the module will be called mei_wdt.
1574
1575config NI903X_WDT
1576	tristate "NI 903x/913x Watchdog"
1577	depends on X86 && ACPI
1578	select WATCHDOG_CORE
1579	---help---
1580	  This is the driver for the watchdog timer on the National Instruments
1581	  903x/913x real-time controllers.
1582
1583	  To compile this driver as a module, choose M here: the module will be
1584	  called ni903x_wdt.
1585
1586config NIC7018_WDT
1587	tristate "NIC7018 Watchdog"
1588	depends on X86 && ACPI
1589	select WATCHDOG_CORE
1590	---help---
1591	  Support for National Instruments NIC7018 Watchdog.
1592
1593	  To compile this driver as a module, choose M here: the module will be
1594	  called nic7018_wdt.
1595
1596# M68K Architecture
1597
1598config M54xx_WATCHDOG
1599	tristate "MCF54xx watchdog support"
1600	depends on M548x
1601	help
1602	  To compile this driver as a module, choose M here: the
1603	  module will be called m54xx_wdt.
1604
1605# MicroBlaze Architecture
1606
1607# MIPS Architecture
1608
1609config ATH79_WDT
1610	tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1611	depends on ATH79 || (ARM && COMPILE_TEST)
1612	help
1613	  Hardware driver for the built-in watchdog timer on the Atheros
1614	  AR71XX/AR724X/AR913X SoCs.
1615
1616config BCM47XX_WDT
1617	tristate "Broadcom BCM47xx Watchdog Timer"
1618	depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1619	select WATCHDOG_CORE
1620	help
1621	  Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1622
1623config RC32434_WDT
1624	tristate "IDT RC32434 SoC Watchdog Timer"
1625	depends on MIKROTIK_RB532
1626	help
1627	  Hardware driver for the IDT RC32434 SoC built-in
1628	  watchdog timer.
1629
1630	  To compile this driver as a module, choose M here: the
1631	  module will be called rc32434_wdt.
1632
1633config INDYDOG
1634	tristate "Indy/I2 Hardware Watchdog"
1635	depends on SGI_HAS_INDYDOG
1636	help
1637	  Hardware driver for the Indy's/I2's watchdog. This is a
1638	  watchdog timer that will reboot the machine after a 60 second
1639	  timer expired and no process has written to /dev/watchdog during
1640	  that time.
1641
1642config JZ4740_WDT
1643	tristate "Ingenic jz4740 SoC hardware watchdog"
1644	depends on MACH_JZ4740 || MACH_JZ4780
1645	select WATCHDOG_CORE
1646	help
1647	  Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1648
1649config WDT_MTX1
1650	tristate "MTX-1 Hardware Watchdog"
1651	depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1652	help
1653	  Hardware driver for the MTX-1 boards. This is a watchdog timer that
1654	  will reboot the machine after a 100 seconds timer expired.
1655
1656config PNX833X_WDT
1657	tristate "PNX833x Hardware Watchdog"
1658	depends on SOC_PNX8335
1659	depends on BROKEN
1660	help
1661	  Hardware driver for the PNX833x's watchdog. This is a
1662	  watchdog timer that will reboot the machine after a programmable
1663	  timer has expired and no process has written to /dev/watchdog during
1664	  that time.
1665
1666config SIBYTE_WDOG
1667	tristate "Sibyte SoC hardware watchdog"
1668	depends on CPU_SB1 || (MIPS && COMPILE_TEST)
1669	help
1670	  Watchdog driver for the built in watchdog hardware in Sibyte
1671	  SoC processors.  There are apparently two watchdog timers
1672	  on such processors; this driver supports only the first one,
1673	  because currently Linux only supports exporting one watchdog
1674	  to userspace.
1675
1676	  To compile this driver as a loadable module, choose M here.
1677	  The module will be called sb_wdog.
1678
1679config AR7_WDT
1680	tristate "TI AR7 Watchdog Timer"
1681	depends on AR7 || (MIPS && COMPILE_TEST)
1682	help
1683	  Hardware driver for the TI AR7 Watchdog Timer.
1684
1685config TXX9_WDT
1686	tristate "Toshiba TXx9 Watchdog Timer"
1687	depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
1688	select WATCHDOG_CORE
1689	help
1690	  Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1691
1692config OCTEON_WDT
1693	tristate "Cavium OCTEON SOC family Watchdog Timer"
1694	depends on CAVIUM_OCTEON_SOC
1695	default y
1696	select WATCHDOG_CORE
1697	select EXPORT_UASM if OCTEON_WDT = m
1698	help
1699	  Hardware driver for OCTEON's on chip watchdog timer.
1700	  Enables the watchdog for all cores running Linux. It
1701	  installs a NMI handler and pokes the watchdog based on an
1702	  interrupt.  On first expiration of the watchdog, the
1703	  interrupt handler pokes it.  The second expiration causes an
1704	  NMI that prints a message. The third expiration causes a
1705	  global soft reset.
1706
1707	  When userspace has /dev/watchdog open, no poking is done
1708	  from the first interrupt, it is then only poked when the
1709	  device is written.
1710
1711config BCM63XX_WDT
1712	tristate "Broadcom BCM63xx hardware watchdog"
1713	depends on BCM63XX
1714	help
1715	  Watchdog driver for the built in watchdog hardware in Broadcom
1716	  BCM63xx SoC.
1717
1718	  To compile this driver as a loadable module, choose M here.
1719	  The module will be called bcm63xx_wdt.
1720
1721config BCM2835_WDT
1722	tristate "Broadcom BCM2835 hardware watchdog"
1723	depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1724	select WATCHDOG_CORE
1725	help
1726	  Watchdog driver for the built in watchdog hardware in Broadcom
1727	  BCM2835 SoC.
1728
1729	  To compile this driver as a loadable module, choose M here.
1730	  The module will be called bcm2835_wdt.
1731
1732config BCM_KONA_WDT
1733	tristate "BCM Kona Watchdog"
1734	depends on ARCH_BCM_MOBILE || COMPILE_TEST
1735	select WATCHDOG_CORE
1736	help
1737	  Support for the watchdog timer on the following Broadcom BCM281xx
1738	  family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1739	  BCM28155 variants.
1740
1741	  Say 'Y' or 'M' here to enable the driver. The module will be called
1742	  bcm_kona_wdt.
1743
1744config BCM_KONA_WDT_DEBUG
1745	bool "DEBUGFS support for BCM Kona Watchdog"
1746	depends on BCM_KONA_WDT
1747	help
1748	  If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1749	  access to the driver's internal data structures as well as watchdog
1750	  timer hardware registres.
1751
1752	  If in doubt, say 'N'.
1753
1754config BCM7038_WDT
1755	tristate "BCM7038 Watchdog"
1756	select WATCHDOG_CORE
1757	depends on HAS_IOMEM
1758	depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1759	help
1760	 Watchdog driver for the built-in hardware in Broadcom 7038 and
1761	 later SoCs used in set-top boxes.  BCM7038 was made public
1762	 during the 2004 CES, and since then, many Broadcom chips use this
1763	 watchdog block, including some cable modem chips.
1764
1765config IMGPDC_WDT
1766	tristate "Imagination Technologies PDC Watchdog Timer"
1767	depends on HAS_IOMEM
1768	depends on MIPS || COMPILE_TEST
1769	select WATCHDOG_CORE
1770	help
1771	  Driver for Imagination Technologies PowerDown Controller
1772	  Watchdog Timer.
1773
1774	  To compile this driver as a loadable module, choose M here.
1775	  The module will be called imgpdc_wdt.
1776
1777config LANTIQ_WDT
1778	tristate "Lantiq SoC watchdog"
1779	depends on LANTIQ
1780	select WATCHDOG_CORE
1781	help
1782	  Hardware driver for the Lantiq SoC Watchdog Timer.
1783
1784config LOONGSON1_WDT
1785	tristate "Loongson1 SoC hardware watchdog"
1786	depends on MACH_LOONGSON32
1787	select WATCHDOG_CORE
1788	help
1789	  Hardware driver for the Loongson1 SoC Watchdog Timer.
1790
1791config RALINK_WDT
1792	tristate "Ralink SoC watchdog"
1793	select WATCHDOG_CORE
1794	depends on RALINK
1795	help
1796	  Hardware driver for the Ralink SoC Watchdog Timer.
1797
1798config MT7621_WDT
1799	tristate "Mediatek SoC watchdog"
1800	select WATCHDOG_CORE
1801	depends on SOC_MT7620 || SOC_MT7621
1802	help
1803	  Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1804
1805config PIC32_WDT
1806	tristate "Microchip PIC32 hardware watchdog"
1807	select WATCHDOG_CORE
1808	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1809	help
1810	  Watchdog driver for the built in watchdog hardware in a PIC32.
1811
1812	  Configuration bits must be set appropriately for the watchdog to be
1813	  controlled by this driver.
1814
1815	  To compile this driver as a loadable module, choose M here.
1816	  The module will be called pic32-wdt.
1817
1818config PIC32_DMT
1819	tristate "Microchip PIC32 Deadman Timer"
1820	select WATCHDOG_CORE
1821	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1822	help
1823	  Watchdog driver for PIC32 instruction fetch counting timer. This specific
1824	  timer is typically be used in misson critical and safety critical
1825	  applications, where any single failure of the software functionality
1826	  and sequencing must be detected.
1827
1828	  To compile this driver as a loadable module, choose M here.
1829	  The module will be called pic32-dmt.
1830
1831# PARISC Architecture
1832
1833# POWERPC Architecture
1834
1835config GEF_WDT
1836	tristate "GE Watchdog Timer"
1837	depends on GE_FPGA
1838	---help---
1839	  Watchdog timer found in a number of GE single board computers.
1840
1841config MPC5200_WDT
1842	bool "MPC52xx Watchdog Timer"
1843	depends on PPC_MPC52xx || COMPILE_TEST
1844	help
1845	  Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1846
1847config 8xxx_WDT
1848	tristate "MPC8xxx Platform Watchdog Timer"
1849	depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1850	select WATCHDOG_CORE
1851	help
1852	  This driver is for a SoC level watchdog that exists on some
1853	  Freescale PowerPC processors. So far this driver supports:
1854	  - MPC8xx watchdogs
1855	  - MPC83xx watchdogs
1856	  - MPC86xx watchdogs
1857
1858	  For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1859
1860config MV64X60_WDT
1861	tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1862	depends on MV64X60 || COMPILE_TEST
1863
1864config PIKA_WDT
1865	tristate "PIKA FPGA Watchdog"
1866	depends on WARP || (PPC64 && COMPILE_TEST)
1867	default y
1868	help
1869	  This enables the watchdog in the PIKA FPGA. Currently used on
1870	  the Warp platform.
1871
1872config BOOKE_WDT
1873	tristate "PowerPC Book-E Watchdog Timer"
1874	depends on BOOKE || 4xx
1875	select WATCHDOG_CORE
1876	---help---
1877	  Watchdog driver for PowerPC Book-E chips, such as the Freescale
1878	  MPC85xx SOCs and the IBM PowerPC 440.
1879
1880	  Please see Documentation/watchdog/watchdog-api.rst for
1881	  more information.
1882
1883config BOOKE_WDT_DEFAULT_TIMEOUT
1884	int "PowerPC Book-E Watchdog Timer Default Timeout"
1885	depends on BOOKE_WDT
1886	default 38 if PPC_FSL_BOOK3E
1887	range 0 63 if PPC_FSL_BOOK3E
1888	default 3 if !PPC_FSL_BOOK3E
1889	range 0 3 if !PPC_FSL_BOOK3E
1890	help
1891	  Select the default watchdog timer period to be used by the PowerPC
1892	  Book-E watchdog driver.  A watchdog "event" occurs when the bit
1893	  position represented by this number transitions from zero to one.
1894
1895	  For Freescale Book-E processors, this is a number between 0 and 63.
1896	  For other Book-E processors, this is a number between 0 and 3.
1897
1898	  The value can be overridden by the wdt_period command-line parameter.
1899
1900config MEN_A21_WDT
1901	tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1902	select WATCHDOG_CORE
1903	depends on GPIOLIB || COMPILE_TEST
1904	help
1905	  Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1906
1907	  The driver can also be built as a module. If so, the module will be
1908	  called mena21_wdt.
1909
1910	  If unsure select N here.
1911
1912# PPC64 Architecture
1913
1914config WATCHDOG_RTAS
1915	tristate "RTAS watchdog"
1916	depends on PPC_RTAS
1917	help
1918	  This driver adds watchdog support for the RTAS watchdog.
1919
1920	  To compile this driver as a module, choose M here. The module
1921	  will be called wdrtas.
1922
1923# S390 Architecture
1924
1925config DIAG288_WATCHDOG
1926	tristate "System z diag288 Watchdog"
1927	depends on S390
1928	select WATCHDOG_CORE
1929	help
1930	  IBM s/390 and zSeries machines running under z/VM 5.1 or later
1931	  provide a virtual watchdog timer to their guest that cause a
1932	  user define Control Program command to be executed after a
1933	  timeout.
1934	  LPAR provides a very similar interface. This driver handles
1935	  both.
1936
1937	  To compile this driver as a module, choose M here. The module
1938	  will be called diag288_wdt.
1939
1940# SUPERH (sh + sh64) Architecture
1941
1942config SH_WDT
1943	tristate "SuperH Watchdog"
1944	depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1945	select WATCHDOG_CORE
1946	help
1947	  This driver adds watchdog support for the integrated watchdog in the
1948	  SuperH processors. If you have one of these processors and wish
1949	  to have watchdog support enabled, say Y, otherwise say N.
1950
1951	  As a side note, saying Y here will automatically boost HZ to 1000
1952	  so that the timer has a chance to clear the overflow counter. On
1953	  slower systems (such as the SH-2 and SH-3) this will likely yield
1954	  some performance issues. As such, the WDT should be avoided here
1955	  unless it is absolutely necessary.
1956
1957	  To compile this driver as a module, choose M here: the
1958	  module will be called shwdt.
1959
1960# SPARC Architecture
1961
1962# SPARC64 Architecture
1963
1964config WATCHDOG_CP1XXX
1965	tristate "CP1XXX Hardware Watchdog support"
1966	depends on SPARC64 && PCI
1967	---help---
1968	  This is the driver for the hardware watchdog timers present on
1969	  Sun Microsystems CompactPCI models CP1400 and CP1500.
1970
1971	  To compile this driver as a module, choose M here: the
1972	  module will be called cpwatchdog.
1973
1974	  If you do not have a CompactPCI model CP1400 or CP1500, or
1975	  another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1976	  you should say N to this option.
1977
1978config WATCHDOG_RIO
1979	tristate "RIO Hardware Watchdog support"
1980	depends on SPARC64 && PCI
1981	help
1982	  Say Y here to support the hardware watchdog capability on Sun RIO
1983	  machines.  The watchdog timeout period is normally one minute but
1984	  can be changed with a boot-time parameter.
1985
1986config WATCHDOG_SUN4V
1987	tristate "Sun4v Watchdog support"
1988	select WATCHDOG_CORE
1989	depends on SPARC64
1990	help
1991	  Say Y here to support the hypervisor watchdog capability embedded
1992	  in the SPARC sun4v architecture.
1993
1994	  To compile this driver as a module, choose M here. The module will
1995	  be called sun4v_wdt.
1996
1997# XTENSA Architecture
1998
1999# Xen Architecture
2000
2001config XEN_WDT
2002	tristate "Xen Watchdog support"
2003	depends on XEN
2004	select WATCHDOG_CORE
2005	help
2006	  Say Y here to support the hypervisor watchdog capability provided
2007	  by Xen 4.0 and newer.  The watchdog timeout period is normally one
2008	  minute but can be changed with a boot-time parameter.
2009
2010config UML_WATCHDOG
2011	tristate "UML watchdog"
2012	depends on UML || COMPILE_TEST
2013
2014#
2015# ISA-based Watchdog Cards
2016#
2017
2018comment "ISA-based Watchdog Cards"
2019	depends on ISA
2020
2021config PCWATCHDOG
2022	tristate "Berkshire Products ISA-PC Watchdog"
2023	depends on ISA
2024	---help---
2025	  This is the driver for the Berkshire Products ISA-PC Watchdog card.
2026	  This card simply watches your kernel to make sure it doesn't freeze,
2027	  and if it does, it reboots your computer after a certain amount of
2028	  time. This driver is like the WDT501 driver but for different
2029	  hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. The PC
2030	  watchdog cards can be ordered from <http://www.berkprod.com/>.
2031
2032	  To compile this driver as a module, choose M here: the
2033	  module will be called pcwd.
2034
2035	  Most people will say N.
2036
2037config MIXCOMWD
2038	tristate "Mixcom Watchdog"
2039	depends on ISA
2040	---help---
2041	  This is a driver for the Mixcom hardware watchdog cards.  This
2042	  watchdog 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.
2045
2046	  To compile this driver as a module, choose M here: the
2047	  module will be called mixcomwd.
2048
2049	  Most people will say N.
2050
2051config WDT
2052	tristate "WDT Watchdog timer"
2053	depends on ISA
2054	---help---
2055	  If you have a WDT500P or WDT501P watchdog board, say Y here,
2056	  otherwise N. It is not possible to probe for this board, which means
2057	  that you have to inform the kernel about the IO port and IRQ that
2058	  is needed (you can do this via the io and irq parameters)
2059
2060	  To compile this driver as a module, choose M here: the
2061	  module will be called wdt.
2062
2063#
2064# PCI-based Watchdog Cards
2065#
2066
2067comment "PCI-based Watchdog Cards"
2068	depends on PCI
2069
2070config PCIPCWATCHDOG
2071	tristate "Berkshire Products PCI-PC Watchdog"
2072	depends on PCI
2073	---help---
2074	  This is the driver for the Berkshire Products PCI-PC Watchdog card.
2075	  This card simply watches your kernel to make sure it doesn't freeze,
2076	  and if it does, it reboots your computer after a certain amount of
2077	  time. The card can also monitor the internal temperature of the PC.
2078	  More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2079
2080	  To compile this driver as a module, choose M here: the
2081	  module will be called pcwd_pci.
2082
2083	  Most people will say N.
2084
2085config WDTPCI
2086	tristate "PCI-WDT500/501 Watchdog timer"
2087	depends on PCI
2088	---help---
2089	  If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2090
2091	  If you have a PCI-WDT501 watchdog board then you can enable the
2092	  temperature sensor by setting the type parameter to 501.
2093
2094	  If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2095	  can do this via the tachometer parameter. Only do this if you have a
2096	  fan tachometer actually set up.
2097
2098	  To compile this driver as a module, choose M here: the
2099	  module will be called wdt_pci.
2100
2101#
2102# USB-based Watchdog Cards
2103#
2104
2105comment "USB-based Watchdog Cards"
2106	depends on USB
2107
2108config USBPCWATCHDOG
2109	tristate "Berkshire Products USB-PC Watchdog"
2110	depends on USB
2111	---help---
2112	  This is the driver for the Berkshire Products USB-PC Watchdog card.
2113	  This card simply watches your kernel to make sure it doesn't freeze,
2114	  and if it does, it reboots your computer after a certain amount of
2115	  time. The card can also monitor the internal temperature of the PC.
2116	  More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2117
2118	  To compile this driver as a module, choose M here: the
2119	  module will be called pcwd_usb.
2120
2121	  Most people will say N.
2122
2123endif # WATCHDOG
2124