1# SPDX-License-Identifier: GPL-2.0-only
2
3#
4# Watchdog device configuration
5#
6
7menuconfig WATCHDOG
8	bool "Watchdog Timer Support"
9	help
10	  If you say Y here (and to one of the following options) and create a
11	  character special file /dev/watchdog with major number 10 and minor
12	  number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:
13	  subsequently opening the file and then failing to write to it for
14	  longer than 1 minute will result in rebooting the machine. This
15	  could be useful for a networked machine that needs to come back
16	  on-line as fast as possible after a lock-up. There's both a watchdog
17	  implementation entirely in software (which can sometimes fail to
18	  reboot the machine) and a driver for hardware watchdog boards, which
19	  are more robust and can also keep track of the temperature inside
20	  your computer. For details, read
21	  <file:Documentation/watchdog/watchdog-api.rst> in the kernel source.
22
23	  The watchdog is usually used together with the watchdog daemon
24	  which is available from
25	  <https://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon
26	  can also monitor NFS connections and can reboot the machine when the
27	  process table is full.
28
29	  If unsure, say N.
30
31if WATCHDOG
32
33config WATCHDOG_CORE
34	tristate "WatchDog Timer Driver Core"
35	help
36	  Say Y here if you want to use the new watchdog timer driver core.
37	  This driver provides a framework for all watchdog timer drivers
38	  and gives them the /dev/watchdog interface (and later also the
39	  sysfs interface).
40
41config WATCHDOG_NOWAYOUT
42	bool "Disable watchdog shutdown on close"
43	help
44	  The default watchdog behaviour (which you get if you say N here) is
45	  to stop the timer if the process managing it closes the file
46	  /dev/watchdog. It's always remotely possible that this process might
47	  get killed. If you say Y here, the watchdog cannot be stopped once
48	  it has been started.
49
50config WATCHDOG_HANDLE_BOOT_ENABLED
51	bool "Update boot-enabled watchdog until userspace takes over"
52	default y
53	help
54	  The default watchdog behaviour (which you get if you say Y here) is
55	  to ping watchdog devices that were enabled before the driver has
56	  been loaded until control is taken over from userspace using the
57	  /dev/watchdog file. If you say N here, the kernel will not update
58	  the watchdog on its own. Thus if your userspace does not start fast
59	  enough your device will reboot.
60
61config WATCHDOG_OPEN_TIMEOUT
62	int "Timeout value for opening watchdog device"
63	default 0
64	help
65	  The maximum time, in seconds, for which the watchdog framework takes
66	  care of pinging a hardware watchdog.  A value of 0 means infinite. The
67	  value set here can be overridden by the commandline parameter
68	  "watchdog.open_timeout".
69
70config WATCHDOG_SYSFS
71	bool "Read different watchdog information through sysfs"
72	help
73	  Say Y here if you want to enable watchdog device status read through
74	  sysfs attributes.
75
76config WATCHDOG_HRTIMER_PRETIMEOUT
77	bool "Enable watchdog hrtimer-based pretimeouts"
78	help
79	  Enable this if you want to use a hrtimer timer based pretimeout for
80	  watchdogs that do not natively support pretimeout support. Be aware
81	  that because this pretimeout functionality uses hrtimers, it may not
82	  be able to fire before the actual watchdog fires in some situations.
83
84comment "Watchdog Pretimeout Governors"
85
86config WATCHDOG_PRETIMEOUT_GOV
87	bool "Enable watchdog pretimeout governors"
88	depends on WATCHDOG_CORE
89	help
90	  The option allows to select watchdog pretimeout governors.
91
92config WATCHDOG_PRETIMEOUT_GOV_SEL
93	tristate
94	depends on WATCHDOG_PRETIMEOUT_GOV
95	default m
96	select WATCHDOG_PRETIMEOUT_GOV_PANIC if WATCHDOG_PRETIMEOUT_GOV_NOOP=n
97
98if WATCHDOG_PRETIMEOUT_GOV
99
100config WATCHDOG_PRETIMEOUT_GOV_NOOP
101	tristate "Noop watchdog pretimeout governor"
102	depends on WATCHDOG_CORE
103	default WATCHDOG_CORE
104	help
105	  Noop watchdog pretimeout governor, only an informational
106	  message is added to kernel log buffer.
107
108config WATCHDOG_PRETIMEOUT_GOV_PANIC
109	tristate "Panic watchdog pretimeout governor"
110	depends on WATCHDOG_CORE
111	default WATCHDOG_CORE
112	help
113	  Panic watchdog pretimeout governor, on watchdog pretimeout
114	  event put the kernel into panic.
115
116choice
117	prompt "Default Watchdog Pretimeout Governor"
118	default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
119	help
120	  This option selects a default watchdog pretimeout governor.
121	  The governor takes its action, if a watchdog is capable
122	  to report a pretimeout event.
123
124config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP
125	bool "noop"
126	depends on WATCHDOG_PRETIMEOUT_GOV_NOOP
127	help
128	  Use noop watchdog pretimeout governor by default. If noop
129	  governor is selected by a user, write a short message to
130	  the kernel log buffer and don't do any system changes.
131
132config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
133	bool "panic"
134	depends on WATCHDOG_PRETIMEOUT_GOV_PANIC
135	help
136	  Use panic watchdog pretimeout governor by default, if
137	  a watchdog pretimeout event happens, consider that
138	  a watchdog feeder is dead and reboot is unavoidable.
139
140endchoice
141
142endif # WATCHDOG_PRETIMEOUT_GOV
143
144#
145# General Watchdog drivers
146#
147
148comment "Watchdog Device Drivers"
149
150# Architecture Independent
151
152config SOFT_WATCHDOG
153	tristate "Software watchdog"
154	select WATCHDOG_CORE
155	help
156	  A software monitoring watchdog. This will fail to reboot your system
157	  from some situations that the hardware watchdog will recover
158	  from. Equally it's a lot cheaper to install.
159
160	  To compile this driver as a module, choose M here: the
161	  module will be called softdog.
162
163config SOFT_WATCHDOG_PRETIMEOUT
164	bool "Software watchdog pretimeout governor support"
165	depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV
166	help
167	  Enable this if you want to use pretimeout governors with the software
168	  watchdog. Be aware that governors might affect the watchdog because it
169	  is purely software, e.g. the panic governor will stall it!
170
171config BD957XMUF_WATCHDOG
172	tristate "ROHM BD9576MUF and BD9573MUF PMIC Watchdog"
173	depends on MFD_ROHM_BD957XMUF
174	select WATCHDOG_CORE
175	help
176	  Support for the watchdog in the ROHM BD9576 and BD9573 PMICs.
177	  These PMIC ICs contain watchdog block which can be configured
178	  to toggle reset line if SoC fails to ping watchdog via GPIO.
179
180	  Say Y here to include support for the ROHM BD9576 or BD9573
181	  watchdog. Alternatively say M to compile the driver as a module,
182	  which will be called bd9576_wdt.
183
184config DA9052_WATCHDOG
185	tristate "Dialog DA9052 Watchdog"
186	depends on PMIC_DA9052 || COMPILE_TEST
187	select WATCHDOG_CORE
188	help
189	  Support for the watchdog in the DA9052 PMIC. Watchdog trigger
190	  cause system reset.
191
192	  Say Y here to include support for the DA9052 watchdog.
193	  Alternatively say M to compile the driver as a module,
194	  which will be called da9052_wdt.
195
196config DA9055_WATCHDOG
197	tristate "Dialog Semiconductor DA9055 Watchdog"
198	depends on MFD_DA9055 || COMPILE_TEST
199	select WATCHDOG_CORE
200	help
201	  If you say yes here you get support for watchdog on the Dialog
202	  Semiconductor DA9055 PMIC.
203
204	  This driver can also be built as a module.  If so, the module
205	  will be called da9055_wdt.
206
207config DA9063_WATCHDOG
208	tristate "Dialog DA9063 Watchdog"
209	depends on MFD_DA9063 || COMPILE_TEST
210	select WATCHDOG_CORE
211	help
212	  Support for the watchdog in the DA9063 PMIC.
213
214	  This driver can be built as a module. The module name is da9063_wdt.
215
216config DA9062_WATCHDOG
217	tristate "Dialog DA9062/61 Watchdog"
218	depends on MFD_DA9062 || COMPILE_TEST
219	depends on I2C
220	select WATCHDOG_CORE
221	help
222	  Support for the watchdog in the DA9062 and DA9061 PMICs.
223
224	  This driver can be built as a module. The module name is da9062_wdt.
225
226config GPIO_WATCHDOG
227	tristate "Watchdog device controlled through GPIO-line"
228	depends on OF_GPIO
229	select WATCHDOG_CORE
230	help
231	  If you say yes here you get support for watchdog device
232	  controlled through GPIO-line.
233
234config GPIO_WATCHDOG_ARCH_INITCALL
235	bool "Register the watchdog as early as possible"
236	depends on GPIO_WATCHDOG=y
237	help
238	  In some situations, the default initcall level (module_init)
239	  in not early enough in the boot process to avoid the watchdog
240	  to be triggered.
241	  If you say yes here, the initcall level would be raised to
242	  arch_initcall.
243	  If in doubt, say N.
244
245config MENF21BMC_WATCHDOG
246	tristate "MEN 14F021P00 BMC Watchdog"
247	depends on MFD_MENF21BMC || COMPILE_TEST
248	depends on I2C
249	select WATCHDOG_CORE
250	help
251	  Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
252
253	  This driver can also be built as a module. If so the module
254	  will be called menf21bmc_wdt.
255
256config MENZ069_WATCHDOG
257	tristate "MEN 16Z069 Watchdog"
258	depends on MCB
259	select WATCHDOG_CORE
260	help
261	  Say Y here to include support for the MEN 16Z069 Watchdog.
262
263	  This driver can also be built as a module. If so the module
264	  will be called menz069_wdt.
265
266config WDAT_WDT
267	tristate "ACPI Watchdog Action Table (WDAT)"
268	depends on ACPI
269	select WATCHDOG_CORE
270	select ACPI_WATCHDOG
271	help
272	  This driver adds support for systems with ACPI Watchdog Action
273	  Table (WDAT) table. Servers typically have this but it can be
274	  found on some desktop machines as well. This driver will take
275	  over the native iTCO watchdog driver found on many Intel CPUs.
276
277	  To compile this driver as module, choose M here: the module will
278	  be called wdat_wdt.
279
280config WM831X_WATCHDOG
281	tristate "WM831x watchdog"
282	depends on MFD_WM831X
283	select WATCHDOG_CORE
284	help
285	  Support for the watchdog in the WM831x AudioPlus PMICs.  When
286	  the watchdog triggers the system will be reset.
287
288config WM8350_WATCHDOG
289	tristate "WM8350 watchdog"
290	depends on MFD_WM8350
291	select WATCHDOG_CORE
292	help
293	  Support for the watchdog in the WM8350 AudioPlus PMIC.  When
294	  the watchdog triggers the system will be reset.
295
296config XILINX_WATCHDOG
297	tristate "Xilinx Watchdog timer"
298	depends on HAS_IOMEM
299	select WATCHDOG_CORE
300	help
301	  Watchdog driver for the xps_timebase_wdt IP core.
302
303	  To compile this driver as a module, choose M here: the
304	  module will be called of_xilinx_wdt.
305
306config ZIIRAVE_WATCHDOG
307	tristate "Zodiac RAVE Watchdog Timer"
308	depends on I2C
309	select WATCHDOG_CORE
310	help
311	  Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
312	  Processor.
313
314	  To compile this driver as a module, choose M here: the
315	  module will be called ziirave_wdt.
316
317config RAVE_SP_WATCHDOG
318	tristate "RAVE SP Watchdog timer"
319	depends on RAVE_SP_CORE
320	depends on NVMEM || !NVMEM
321	select WATCHDOG_CORE
322	help
323	  Support for the watchdog on RAVE SP device.
324
325config MLX_WDT
326	tristate "Mellanox Watchdog"
327	depends on MELLANOX_PLATFORM
328	select WATCHDOG_CORE
329	select REGMAP
330	help
331	  This is the driver for the hardware watchdog on Mellanox systems.
332	  If you are going to use it, say Y here, otherwise N.
333	  This driver can be used together with the watchdog daemon.
334	  It can also watch your kernel to make sure it doesn't freeze,
335	  and if it does, it reboots your system after a certain amount of
336	  time.
337
338	  To compile this driver as a module, choose M here: the
339	  module will be called mlx-wdt.
340
341config SL28CPLD_WATCHDOG
342	tristate "Kontron sl28cpld Watchdog"
343	depends on MFD_SL28CPLD || COMPILE_TEST
344	select WATCHDOG_CORE
345	help
346	  Say Y here to include support for the watchdog timer
347	  on the Kontron sl28 CPLD.
348
349	  To compile this driver as a module, choose M here: the
350	  module will be called sl28cpld_wdt.
351
352# ALPHA Architecture
353
354# ARM Architecture
355
356config ARM_SP805_WATCHDOG
357	tristate "ARM SP805 Watchdog"
358	depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
359	select WATCHDOG_CORE
360	help
361	  ARM Primecell SP805 Watchdog timer. This will reboot your system when
362	  the timeout is reached.
363
364config ARM_SBSA_WATCHDOG
365	tristate "ARM SBSA Generic Watchdog"
366	depends on ARM64
367	depends on ARM_ARCH_TIMER
368	select WATCHDOG_CORE
369	help
370	  ARM SBSA Generic Watchdog has two stage timeouts:
371	  the first signal (WS0) is for alerting the system by interrupt,
372	  the second one (WS1) is a real hardware reset.
373	  More details: ARM DEN0029B - Server Base System Architecture (SBSA)
374
375	  This driver can operate ARM SBSA Generic Watchdog as a single stage
376	  or a two stages watchdog, it depends on the module parameter "action".
377
378	  Note: the maximum timeout in the two stages mode is half of that in
379	  the single stage mode.
380
381	  To compile this driver as module, choose M here: The module
382	  will be called sbsa_gwdt.
383
384config ARMADA_37XX_WATCHDOG
385	tristate "Armada 37xx watchdog"
386	depends on ARCH_MVEBU || COMPILE_TEST
387	depends on HAS_IOMEM
388	select MFD_SYSCON
389	select WATCHDOG_CORE
390	help
391	   Say Y here to include support for the watchdog timer found on
392	   Marvell Armada 37xx SoCs.
393	   To compile this driver as a module, choose M here: the
394	   module will be called armada_37xx_wdt.
395
396config ASM9260_WATCHDOG
397	tristate "Alphascale ASM9260 watchdog"
398	depends on MACH_ASM9260 || COMPILE_TEST
399	depends on OF
400	select WATCHDOG_CORE
401	select RESET_CONTROLLER
402	help
403	  Watchdog timer embedded into Alphascale asm9260 chips. This will
404	  reboot your system when the timeout is reached.
405
406config AT91RM9200_WATCHDOG
407	tristate "AT91RM9200 watchdog"
408	depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
409	help
410	  Watchdog timer embedded into AT91RM9200 chips. This will reboot your
411	  system when the timeout is reached.
412
413config AT91SAM9X_WATCHDOG
414	tristate "AT91SAM9X / AT91CAP9 watchdog"
415	depends on ARCH_AT91 || COMPILE_TEST
416	select WATCHDOG_CORE
417	help
418	  Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
419	  reboot your system when the timeout is reached.
420
421config SAMA5D4_WATCHDOG
422	tristate "Atmel SAMA5D4 Watchdog Timer"
423	depends on ARCH_AT91 || COMPILE_TEST
424	select WATCHDOG_CORE
425	help
426	  Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
427	  Its Watchdog Timer Mode Register can be written more than once.
428	  This will reboot your system when the timeout is reached.
429
430config CADENCE_WATCHDOG
431	tristate "Cadence Watchdog Timer"
432	depends on HAS_IOMEM
433	select WATCHDOG_CORE
434	help
435	  Say Y here if you want to include support for the watchdog
436	  timer in the Xilinx Zynq.
437
438config 21285_WATCHDOG
439	tristate "DC21285 watchdog"
440	depends on FOOTBRIDGE
441	help
442	  The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
443	  here if you wish to use this. Alternatively say M to compile the
444	  driver as a module, which will be called wdt285.
445
446	  This driver does not work on all machines. In particular, early CATS
447	  boards have hardware problems that will cause the machine to simply
448	  lock up if the watchdog fires.
449
450	  "If in doubt, leave it out" - say N.
451
452config 977_WATCHDOG
453	tristate "NetWinder WB83C977 watchdog"
454	depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
455	help
456	  Say Y here to include support for the WB977 watchdog included in
457	  NetWinder machines. Alternatively say M to compile the driver as
458	  a module, which will be called wdt977.
459
460	  Not sure? It's safe to say N.
461
462config FTWDT010_WATCHDOG
463	tristate "Faraday Technology FTWDT010 watchdog"
464	depends on ARM || COMPILE_TEST
465	select WATCHDOG_CORE
466	default ARCH_GEMINI
467	help
468	  Say Y here if to include support for the Faraday Technology
469	  FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
470	  family of devices.
471
472	  To compile this driver as a module, choose M here: the
473	  module will be called ftwdt010_wdt.
474
475config IXP4XX_WATCHDOG
476	tristate "IXP4xx Watchdog"
477	depends on ARCH_IXP4XX
478	select WATCHDOG_CORE
479	help
480	  Say Y here if to include support for the watchdog timer
481	  in the Intel IXP4xx network processors. This driver can
482	  be built as a module by choosing M. The module will
483	  be called ixp4xx_wdt.
484
485	  Note: The internal IXP4xx watchdog does a soft CPU reset
486	  which doesn't reset any peripherals. There are circumstances
487	  where the watchdog will fail to reset the board correctly
488	  (e.g., if the boot ROM is in an unreadable state).
489
490	  Say N if you are unsure.
491
492config S3C2410_WATCHDOG
493	tristate "S3C2410 Watchdog"
494	depends on ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || \
495		   COMPILE_TEST
496	select WATCHDOG_CORE
497	select MFD_SYSCON if ARCH_EXYNOS
498	help
499	  Watchdog timer block in the Samsung S3C24xx, S3C64xx, S5Pv210 and
500	  Exynos SoCs. This will reboot the system when the timer expires with
501	  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	  Choose Y/M here only if you build for such Samsung SoC.
509	  The driver can be built as a module by choosing M, and will
510	  be called s3c2410_wdt.
511
512config SA1100_WATCHDOG
513	tristate "SA1100/PXA2xx watchdog"
514	depends on ARCH_SA1100 || ARCH_PXA
515	help
516	  Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
517	  reboot your system when timeout is reached.
518
519	  NOTE: once enabled, this timer cannot be disabled.
520
521	  To compile this driver as a module, choose M here: the
522	  module will be called sa1100_wdt.
523
524config DW_WATCHDOG
525	tristate "Synopsys DesignWare watchdog"
526	depends on HAS_IOMEM
527	select WATCHDOG_CORE
528	help
529	  Say Y here if to include support for the Synopsys DesignWare
530	  watchdog timer found in many chips.
531	  To compile this driver as a module, choose M here: the
532	  module will be called dw_wdt.
533
534config EP93XX_WATCHDOG
535	tristate "EP93xx Watchdog"
536	depends on ARCH_EP93XX || COMPILE_TEST
537	select WATCHDOG_CORE
538	help
539	  Say Y here if to include support for the watchdog timer
540	  embedded in the Cirrus Logic EP93xx family of devices.
541
542	  To compile this driver as a module, choose M here: the
543	  module will be called ep93xx_wdt.
544
545config OMAP_WATCHDOG
546	tristate "OMAP Watchdog"
547	depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
548	select WATCHDOG_CORE
549	help
550	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.
551	  Say 'Y' here to enable the
552	  OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
553
554config PNX4008_WATCHDOG
555	tristate "LPC32XX Watchdog"
556	depends on ARCH_LPC32XX || COMPILE_TEST
557	select WATCHDOG_CORE
558	help
559	  Say Y here if to include support for the watchdog timer
560	  in the LPC32XX processor.
561	  This driver can be built as a module by choosing M. The module
562	  will be called pnx4008_wdt.
563
564	  Say N if you are unsure.
565
566config DAVINCI_WATCHDOG
567	tristate "DaVinci watchdog"
568	depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
569	select WATCHDOG_CORE
570	help
571	  Say Y here if to include support for the watchdog timer
572	  in the DaVinci DM644x/DM646x or Keystone processors.
573	  To compile this driver as a module, choose M here: the
574	  module will be called davinci_wdt.
575
576	  NOTE: once enabled, this timer cannot be disabled.
577	  Say N if you are unsure.
578
579config K3_RTI_WATCHDOG
580	tristate "Texas Instruments K3 RTI watchdog"
581	depends on ARCH_K3 || COMPILE_TEST
582	select WATCHDOG_CORE
583	help
584	  Say Y here if you want to include support for the K3 watchdog
585	  timer (RTI module) available in the K3 generation of processors.
586
587config ORION_WATCHDOG
588	tristate "Orion watchdog"
589	depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST
590	depends on ARM
591	select WATCHDOG_CORE
592	help
593	  Say Y here if to include support for the watchdog timer
594	  in the Marvell Orion5x and Kirkwood ARM SoCs.
595	  To compile this driver as a module, choose M here: the
596	  module will be called orion_wdt.
597
598config RN5T618_WATCHDOG
599	tristate "Ricoh RN5T618 watchdog"
600	depends on MFD_RN5T618 || COMPILE_TEST
601	select WATCHDOG_CORE
602	help
603	  If you say yes here you get support for watchdog on the Ricoh
604	  RN5T618 PMIC.
605
606	  This driver can also be built as a module.  If so, the module
607	  will be called rn5t618_wdt.
608
609config SUNXI_WATCHDOG
610	tristate "Allwinner SoCs watchdog support"
611	depends on ARCH_SUNXI || COMPILE_TEST
612	select WATCHDOG_CORE
613	help
614	  Say Y here to include support for the watchdog timer
615	  in Allwinner SoCs.
616	  To compile this driver as a module, choose M here: the
617	  module will be called sunxi_wdt.
618
619config NPCM7XX_WATCHDOG
620	tristate "Nuvoton NPCM750 watchdog"
621	depends on ARCH_NPCM || COMPILE_TEST
622	default y if ARCH_NPCM7XX
623	select WATCHDOG_CORE
624	help
625	  Say Y here to include Watchdog timer support for the
626	  watchdog embedded into the NPCM7xx.
627	  This watchdog is used to reset the system and thus cannot be
628	  compiled as a module.
629
630config TWL4030_WATCHDOG
631	tristate "TWL4030 Watchdog"
632	depends on TWL4030_CORE
633	select WATCHDOG_CORE
634	help
635	  Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
636	  watchdog timer support for TWL4030 chips.
637
638config STMP3XXX_RTC_WATCHDOG
639	tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
640	depends on RTC_DRV_STMP || COMPILE_TEST
641	select WATCHDOG_CORE
642	help
643	  Say Y here to include support for the watchdog timer inside
644	  the RTC for the STMP37XX/378X or i.MX23/28 SoC.
645	  To compile this driver as a module, choose M here: the
646	  module will be called stmp3xxx_rtc_wdt.
647
648config TS4800_WATCHDOG
649	tristate "TS-4800 Watchdog"
650	depends on HAS_IOMEM && OF
651	depends on SOC_IMX51 || COMPILE_TEST
652	select WATCHDOG_CORE
653	select MFD_SYSCON
654	help
655	  Technologic Systems TS-4800 has watchdog timer implemented in
656	  an external FPGA. Say Y here if you want to support for the
657	  watchdog timer on TS-4800 board.
658
659config TS72XX_WATCHDOG
660	tristate "TS-72XX SBC Watchdog"
661	depends on MACH_TS72XX || COMPILE_TEST
662	select WATCHDOG_CORE
663	help
664	  Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
665	  watchdog timer implemented in a external CPLD chip. Say Y here
666	  if you want to support for the watchdog timer on TS-72XX boards.
667
668	  To compile this driver as a module, choose M here: the
669	  module will be called ts72xx_wdt.
670
671config MAX63XX_WATCHDOG
672	tristate "Max63xx watchdog"
673	depends on HAS_IOMEM
674	select WATCHDOG_CORE
675	help
676	  Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
677
678config MAX77620_WATCHDOG
679	tristate "Maxim Max77620 Watchdog Timer"
680	depends on MFD_MAX77620 || COMPILE_TEST
681	select WATCHDOG_CORE
682	help
683	 This is the driver for the Max77620 watchdog timer.
684	 Say 'Y' here to enable the watchdog timer support for
685	 MAX77620 chips. To compile this driver as a module,
686	 choose M here: the module will be called max77620_wdt.
687
688config IMX2_WDT
689	tristate "IMX2+ Watchdog"
690	depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
691	select REGMAP_MMIO
692	select WATCHDOG_CORE
693	help
694	  This is the driver for the hardware watchdog
695	  on the Freescale IMX2 and later processors.
696	  If you have one of these processors and wish to have
697	  watchdog support enabled, say Y, otherwise say N.
698
699	  To compile this driver as a module, choose M here: the
700	  module will be called imx2_wdt.
701
702config IMX_SC_WDT
703	tristate "IMX SC Watchdog"
704	depends on HAVE_ARM_SMCCC
705	depends on IMX_SCU
706	select WATCHDOG_CORE
707	help
708	  This is the driver for the system controller watchdog
709	  on the NXP i.MX SoCs with system controller inside, the
710	  watchdog driver will call ARM SMC API and trap into
711	  ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
712	  will request system controller to execute the operations.
713	  If you have one of these processors and wish to have
714	  watchdog support enabled, say Y, otherwise say N.
715
716	  To compile this driver as a module, choose M here: the
717	  module will be called imx_sc_wdt.
718
719config IMX7ULP_WDT
720	tristate "IMX7ULP Watchdog"
721	depends on ARCH_MXC || COMPILE_TEST
722	select WATCHDOG_CORE
723	help
724	  This is the driver for the hardware watchdog on the Freescale
725	  IMX7ULP and later processors. If you have one of these
726	  processors and wish to have watchdog support enabled,
727	  say Y, otherwise say N.
728
729	  To compile this driver as a module, choose M here: the
730	  module will be called imx7ulp_wdt.
731
732config DB500_WATCHDOG
733	tristate "ST-Ericsson DB800 watchdog"
734	depends on MFD_DB8500_PRCMU
735	select WATCHDOG_CORE
736	default y
737	help
738	  Say Y here to include Watchdog timer support for the watchdog
739	  existing in the prcmu of ST-Ericsson DB8500 platform.
740
741	  To compile this driver as a module, choose M here: the
742	  module will be called db500_wdt.
743
744config RETU_WATCHDOG
745	tristate "Retu watchdog"
746	depends on MFD_RETU
747	select WATCHDOG_CORE
748	help
749	  Retu watchdog driver for Nokia Internet Tablets (770, N800,
750	  N810). At least on N800 the watchdog cannot be disabled, so
751	  this driver is essential and you should enable it.
752
753	  To compile this driver as a module, choose M here: the
754	  module will be called retu_wdt.
755
756config MOXART_WDT
757	tristate "MOXART watchdog"
758	depends on ARCH_MOXART || COMPILE_TEST
759	help
760	  Say Y here to include Watchdog timer support for the watchdog
761	  existing on the MOXA ART SoC series platforms.
762
763	  To compile this driver as a module, choose M here: the
764	  module will be called moxart_wdt.
765
766config ST_LPC_WATCHDOG
767	tristate "STMicroelectronics LPC Watchdog"
768	depends on ARCH_STI || COMPILE_TEST
769	depends on OF
770	select WATCHDOG_CORE
771	help
772	  Say Y here to include STMicroelectronics Low Power Controller
773	  (LPC) based Watchdog timer support.
774
775	  To compile this driver as a module, choose M here: the
776	  module will be called st_lpc_wdt.
777
778config TEGRA_WATCHDOG
779	tristate "Tegra watchdog"
780	depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
781	select WATCHDOG_CORE
782	help
783	  Say Y here to include support for the watchdog timer
784	  embedded in NVIDIA Tegra SoCs.
785
786	  To compile this driver as a module, choose M here: the
787	  module will be called tegra_wdt.
788
789config QCOM_WDT
790	tristate "QCOM watchdog"
791	depends on HAS_IOMEM
792	depends on ARCH_QCOM || COMPILE_TEST
793	select WATCHDOG_CORE
794	help
795	  Say Y here to include Watchdog timer support for the watchdog found
796	  on QCOM chipsets.  Currently supported targets are the MSM8960,
797	  APQ8064, and IPQ8064.
798
799	  To compile this driver as a module, choose M here: the
800	  module will be called qcom_wdt.
801
802config MESON_GXBB_WATCHDOG
803	tristate "Amlogic Meson GXBB SoCs watchdog support"
804	depends on ARCH_MESON || COMPILE_TEST
805	select WATCHDOG_CORE
806	help
807	  Say Y here to include support for the watchdog timer
808	  in Amlogic Meson GXBB SoCs.
809	  To compile this driver as a module, choose M here: the
810	  module will be called meson_gxbb_wdt.
811
812config MESON_WATCHDOG
813	tristate "Amlogic Meson SoCs watchdog support"
814	depends on ARCH_MESON || COMPILE_TEST
815	select WATCHDOG_CORE
816	help
817	  Say Y here to include support for the watchdog timer
818	  in Amlogic Meson SoCs.
819	  To compile this driver as a module, choose M here: the
820	  module will be called meson_wdt.
821
822config MEDIATEK_WATCHDOG
823	tristate "Mediatek SoCs watchdog support"
824	depends on ARCH_MEDIATEK || COMPILE_TEST
825	select WATCHDOG_CORE
826	select RESET_CONTROLLER
827	help
828	  Say Y here to include support for the watchdog timer
829	  in Mediatek SoCs.
830	  To compile this driver as a module, choose M here: the
831	  module will be called mtk_wdt.
832
833config DIGICOLOR_WATCHDOG
834	tristate "Conexant Digicolor SoCs watchdog support"
835	depends on ARCH_DIGICOLOR || COMPILE_TEST
836	select WATCHDOG_CORE
837	help
838	  Say Y here to include support for the watchdog timer
839	  in Conexant Digicolor SoCs.
840	  To compile this driver as a module, choose M here: the
841	  module will be called digicolor_wdt.
842
843config ARM_SMC_WATCHDOG
844	tristate "ARM Secure Monitor Call based watchdog support"
845	depends on ARM || ARM64
846	depends on OF
847	depends on HAVE_ARM_SMCCC
848	select WATCHDOG_CORE
849	help
850	  Say Y here to include support for a watchdog timer
851	  implemented by the EL3 Secure Monitor on ARM platforms.
852	  Requires firmware support.
853	  To compile this driver as a module, choose M here: the
854	  module will be called arm_smc_wdt.
855
856config LPC18XX_WATCHDOG
857	tristate "LPC18xx/43xx Watchdog"
858	depends on ARCH_LPC18XX || COMPILE_TEST
859	depends on HAS_IOMEM
860	select WATCHDOG_CORE
861	help
862	  Say Y here if to include support for the watchdog timer
863	  in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
864	  processors.
865	  To compile this driver as a module, choose M here: the
866	  module will be called lpc18xx_wdt.
867
868config RENESAS_WDT
869	tristate "Renesas WDT Watchdog"
870	depends on ARCH_RENESAS || COMPILE_TEST
871	select WATCHDOG_CORE
872	help
873	  This driver adds watchdog support for the integrated watchdogs in the
874	  Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
875
876config RENESAS_RZAWDT
877	tristate "Renesas RZ/A WDT Watchdog"
878	depends on ARCH_RENESAS || COMPILE_TEST
879	select WATCHDOG_CORE
880	help
881	  This driver adds watchdog support for the integrated watchdogs in the
882	  Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
883
884config ASPEED_WATCHDOG
885	tristate "Aspeed BMC watchdog support"
886	depends on ARCH_ASPEED || COMPILE_TEST
887	select WATCHDOG_CORE
888	help
889	  Say Y here to include support for the watchdog timer
890	  in Aspeed BMC SoCs.
891
892	  This driver is required to reboot the SoC.
893
894	  To compile this driver as a module, choose M here: the
895	  module will be called aspeed_wdt.
896
897config STM32_WATCHDOG
898	tristate "STM32 Independent WatchDoG (IWDG) support"
899	depends on ARCH_STM32
900	select WATCHDOG_CORE
901	default y
902	help
903	  Say Y here to include support for the watchdog timer
904	  in stm32 SoCs.
905
906	  To compile this driver as a module, choose M here: the
907	  module will be called stm32_iwdg.
908
909config STPMIC1_WATCHDOG
910	tristate "STPMIC1 PMIC watchdog support"
911	depends on MFD_STPMIC1
912	select WATCHDOG_CORE
913	help
914	  Say Y here to include watchdog support embedded into STPMIC1 PMIC.
915	  If the watchdog timer expires, stpmic1 will shut down all its power
916	  supplies.
917
918	  To compile this driver as a module, choose M here: the
919	  module will be called spmic1_wdt.
920
921config UNIPHIER_WATCHDOG
922	tristate "UniPhier watchdog support"
923	depends on ARCH_UNIPHIER || COMPILE_TEST
924	depends on OF && MFD_SYSCON
925	select WATCHDOG_CORE
926	help
927	  Say Y here to include support watchdog timer embedded
928	  into the UniPhier system.
929
930	  To compile this driver as a module, choose M here: the
931	  module will be called uniphier_wdt.
932
933config RTD119X_WATCHDOG
934	bool "Realtek RTD119x/RTD129x watchdog support"
935	depends on ARCH_REALTEK || COMPILE_TEST
936	depends on OF
937	select WATCHDOG_CORE
938	default ARCH_REALTEK
939	help
940	  Say Y here to include support for the watchdog timer in
941	  Realtek RTD1295 SoCs.
942
943config SPRD_WATCHDOG
944	tristate "Spreadtrum watchdog support"
945	depends on ARCH_SPRD || COMPILE_TEST
946	select WATCHDOG_CORE
947	help
948	  Say Y here to include watchdog timer supported
949	  by Spreadtrum system.
950
951config PM8916_WATCHDOG
952	tristate "QCOM PM8916 pmic watchdog"
953	depends on OF && MFD_SPMI_PMIC
954	select WATCHDOG_CORE
955	help
956	  Say Y here to include support watchdog timer embedded into the
957	  pm8916 module.
958
959config VISCONTI_WATCHDOG
960	tristate "Toshiba Visconti series watchdog support"
961	depends on ARCH_VISCONTI || COMPILE_TEST
962	select WATCHDOG_CORE
963	help
964	  Say Y here to include support for the watchdog timer in Toshiba
965	  Visconti SoCs.
966
967config MSC313E_WATCHDOG
968	tristate "MStar MSC313e watchdog"
969	depends on ARCH_MSTARV7 || COMPILE_TEST
970	select WATCHDOG_CORE
971	help
972	  Say Y here to include support for the Watchdog timer embedded
973	  into MStar MSC313e chips. This will reboot your system when the
974	  timeout is reached.
975
976	  To compile this driver as a module, choose M here: the
977	  module will be called msc313e_wdt.
978
979# X86 (i386 + ia64 + x86_64) Architecture
980
981config ACQUIRE_WDT
982	tristate "Acquire SBC Watchdog Timer"
983	depends on X86
984	help
985	  This is the driver for the hardware watchdog on Single Board
986	  Computers produced by Acquire Inc (and others). This watchdog
987	  simply watches your kernel to make sure it doesn't freeze, and if
988	  it does, it reboots your computer after a certain amount of time.
989
990	  To compile this driver as a module, choose M here: the
991	  module will be called acquirewdt.
992
993	  Most people will say N.
994
995config ADVANTECH_WDT
996	tristate "Advantech SBC Watchdog Timer"
997	depends on X86
998	help
999	  If you are configuring a Linux kernel for the Advantech single-board
1000	  computer, say `Y' here to support its built-in watchdog timer
1001	  feature. More information can be found at
1002	  <https://www.advantech.com.tw/products/>
1003
1004config ALIM1535_WDT
1005	tristate "ALi M1535 PMU Watchdog Timer"
1006	depends on X86 && PCI
1007	help
1008	  This is the driver for the hardware watchdog on the ALi M1535 PMU.
1009
1010	  To compile this driver as a module, choose M here: the
1011	  module will be called alim1535_wdt.
1012
1013	  Most people will say N.
1014
1015config ALIM7101_WDT
1016	tristate "ALi M7101 PMU Computer Watchdog"
1017	depends on PCI
1018	help
1019	  This is the driver for the hardware watchdog on the ALi M7101 PMU
1020	  as used in the x86 Cobalt servers and also found in some
1021	  SPARC Netra servers too.
1022
1023	  To compile this driver as a module, choose M here: the
1024	  module will be called alim7101_wdt.
1025
1026	  Most people will say N.
1027
1028config EBC_C384_WDT
1029	tristate "WinSystems EBC-C384 Watchdog Timer"
1030	depends on X86
1031	select ISA_BUS_API
1032	select WATCHDOG_CORE
1033	help
1034	  Enables watchdog timer support for the watchdog timer on the
1035	  WinSystems EBC-C384 motherboard. The timeout may be configured via
1036	  the timeout module parameter.
1037
1038config F71808E_WDT
1039	tristate "Fintek F718xx, F818xx Super I/O Watchdog"
1040	depends on X86
1041	select WATCHDOG_CORE
1042	help
1043	  This is the driver for the hardware watchdog on the Fintek F71808E,
1044	  F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and
1045	  F81866 Super I/O controllers.
1046
1047	  You can compile this driver directly into the kernel, or use
1048	  it as a module.  The module will be called f71808e_wdt.
1049
1050config SP5100_TCO
1051	tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
1052	depends on X86 && PCI
1053	select WATCHDOG_CORE
1054	help
1055	  Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
1056	  (Total Cost of Ownership) timer is a watchdog timer that will reboot
1057	  the machine after its expiration. The expiration time can be
1058	  configured with the "heartbeat" parameter.
1059
1060	  To compile this driver as a module, choose M here: the
1061	  module will be called sp5100_tco.
1062
1063config GEODE_WDT
1064	tristate "AMD Geode CS5535/CS5536 Watchdog"
1065	depends on CS5535_MFGPT
1066	help
1067	  This driver enables a watchdog capability built into the
1068	  CS5535/CS5536 companion chips for the AMD Geode GX and LX
1069	  processors.  This watchdog watches your kernel to make sure
1070	  it doesn't freeze, and if it does, it reboots your computer after
1071	  a certain amount of time.
1072
1073	  You can compile this driver directly into the kernel, or use
1074	  it as a module.  The module will be called geodewdt.
1075
1076config SC520_WDT
1077	tristate "AMD Elan SC520 processor Watchdog"
1078	depends on MELAN || COMPILE_TEST
1079	help
1080	  This is the driver for the hardware watchdog built in to the
1081	  AMD "Elan" SC520 microcomputer commonly used in embedded systems.
1082	  This watchdog simply watches your kernel to make sure it doesn't
1083	  freeze, and if it does, it reboots your computer after a certain
1084	  amount of time.
1085
1086	  You can compile this driver directly into the kernel, or use
1087	  it as a module.  The module will be called sc520_wdt.
1088
1089config SBC_FITPC2_WATCHDOG
1090	tristate "Compulab SBC-FITPC2 watchdog"
1091	depends on X86
1092	help
1093	  This is the driver for the built-in watchdog timer on the fit-PC2,
1094	  fit-PC2i, CM-iAM single-board computers made by Compulab.
1095
1096	  It's possible to enable the watchdog timer either from BIOS (F2) or
1097	  from booted Linux.
1098	  When the "Watchdog Timer Value" is enabled one can set 31-255 seconds
1099	  operational range.
1100
1101	  Entering BIOS setup temporarily disables watchdog operation regardless
1102	  of current state, so system will not be restarted while user is in
1103	  BIOS setup.
1104
1105	  Once the watchdog is enabled the system will be restarted every
1106	  "Watchdog Timer Value" period, so to prevent it user can restart or
1107	  disable the watchdog.
1108
1109	  To compile this driver as a module, choose M here: the
1110	  module will be called sbc_fitpc2_wdt.
1111
1112	  Most people will say N.
1113
1114config EUROTECH_WDT
1115	tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1116	depends on X86
1117	help
1118	  Enable support for the watchdog timer on the Eurotech CPU-1220 and
1119	  CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
1120	  information are at <http://www.eurotech.it/>.
1121
1122config IB700_WDT
1123	tristate "IB700 SBC Watchdog Timer"
1124	depends on X86
1125	help
1126	  This is the driver for the hardware watchdog on the IB700 Single
1127	  Board Computer produced by TMC Technology (www.tmc-uk.com). This
1128	  watchdog simply watches your kernel to make sure it doesn't freeze,
1129	  and if it does, it reboots your computer after a certain amount of time.
1130
1131	  This driver is like the WDT501 driver but for slightly different
1132	  hardware.
1133
1134	  To compile this driver as a module, choose M here: the
1135	  module will be called ib700wdt.
1136
1137	  Most people will say N.
1138
1139config IBMASR
1140	tristate "IBM Automatic Server Restart"
1141	depends on X86
1142	help
1143	  This is the driver for the IBM Automatic Server Restart watchdog
1144	  timer built-in into some eServer xSeries machines.
1145
1146	  To compile this driver as a module, choose M here: the
1147	  module will be called ibmasr.
1148
1149config WAFER_WDT
1150	tristate "ICP Single Board Computer Watchdog Timer"
1151	depends on X86
1152	help
1153	  This is a driver for the hardware watchdog on the ICP Single
1154	  Board Computer. This driver is working on (at least) the following
1155	  IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1156
1157	  To compile this driver as a module, choose M here: the
1158	  module will be called wafer5823wdt.
1159
1160config I6300ESB_WDT
1161	tristate "Intel 6300ESB Timer/Watchdog"
1162	depends on PCI
1163	select WATCHDOG_CORE
1164	help
1165	  Hardware driver for the watchdog timer built into the Intel
1166	  6300ESB controller hub.
1167
1168	  To compile this driver as a module, choose M here: the
1169	  module will be called i6300esb.
1170
1171config IE6XX_WDT
1172	tristate "Intel Atom E6xx Watchdog"
1173	depends on X86 && PCI
1174	select WATCHDOG_CORE
1175	select MFD_CORE
1176	select LPC_SCH
1177	help
1178	  Hardware driver for the watchdog timer built into the Intel
1179	  Atom E6XX (TunnelCreek) processor.
1180
1181	  To compile this driver as a module, choose M here: the
1182	  module will be called ie6xx_wdt.
1183
1184config INTEL_MID_WATCHDOG
1185	tristate "Intel MID Watchdog Timer"
1186	depends on X86_INTEL_MID
1187	select WATCHDOG_CORE
1188	help
1189	  Watchdog timer driver built into the Intel SCU for Intel MID
1190	  Platforms.
1191
1192	  This driver currently supports only the watchdog evolution
1193	  implementation in SCU, available for Merrifield generation.
1194
1195	  To compile this driver as a module, choose M here.
1196
1197config ITCO_WDT
1198	tristate "Intel TCO Timer/Watchdog"
1199	depends on (X86 || IA64) && PCI
1200	select WATCHDOG_CORE
1201	depends on I2C || I2C=n
1202	depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT
1203	select LPC_ICH if !EXPERT
1204	select I2C_I801 if !EXPERT && I2C
1205	help
1206	  Hardware driver for the intel TCO timer based watchdog devices.
1207	  These drivers are included in the Intel 82801 I/O Controller
1208	  Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1209	  controller hub.
1210
1211	  The TCO (Total Cost of Ownership) timer is a watchdog timer
1212	  that will reboot the machine after its second expiration. The
1213	  expiration time can be configured with the "heartbeat" parameter.
1214
1215	  On some motherboards the driver may fail to reset the chipset's
1216	  NO_REBOOT flag which prevents the watchdog from rebooting the
1217	  machine. If this is the case you will get a kernel message like
1218	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1219
1220	  To compile this driver as a module, choose M here: the
1221	  module will be called iTCO_wdt.
1222
1223config ITCO_VENDOR_SUPPORT
1224	bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1225	depends on ITCO_WDT
1226	help
1227	  Add vendor specific support to the intel TCO timer based watchdog
1228	  devices. At this moment we only have additional support for some
1229	  SuperMicro Inc. motherboards.
1230
1231config IT8712F_WDT
1232	tristate "IT8712F (Smart Guardian) Watchdog Timer"
1233	depends on X86
1234	help
1235	  This is the driver for the built-in watchdog timer on the IT8712F
1236	  Super I/0 chipset used on many motherboards.
1237
1238	  If the driver does not work, then make sure that the game port in
1239	  the BIOS is enabled.
1240
1241	  To compile this driver as a module, choose M here: the
1242	  module will be called it8712f_wdt.
1243
1244config IT87_WDT
1245	tristate "IT87 Watchdog Timer"
1246	depends on X86
1247	select WATCHDOG_CORE
1248	help
1249	  This is the driver for the hardware watchdog on the ITE IT8607,
1250	  IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1251	  IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1252	  IT8783 Super I/O chips.
1253
1254	  This watchdog simply watches your kernel to make sure it doesn't
1255	  freeze, and if it does, it reboots your computer after a certain
1256	  amount of time.
1257
1258	  To compile this driver as a module, choose M here: the module will
1259	  be called it87_wdt.
1260
1261config HP_WATCHDOG
1262	tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1263	select WATCHDOG_CORE
1264	depends on X86 && PCI
1265	help
1266	  A software monitoring watchdog and NMI handling driver. This driver
1267	  will detect lockups and provide a stack trace. This is a driver that
1268	  will only load on an HP ProLiant system with a minimum of iLO2 support.
1269	  To compile this driver as a module, choose M here: the module will be
1270	  called hpwdt.
1271
1272config HPWDT_NMI_DECODING
1273	bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1274	depends on HP_WATCHDOG
1275	default y
1276	help
1277	  Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1278	  "Generate NMI to System" virtual button.  When an NMI is claimed
1279	  by the driver, panic is called.
1280
1281config KEMPLD_WDT
1282	tristate "Kontron COM Watchdog Timer"
1283	depends on MFD_KEMPLD
1284	select WATCHDOG_CORE
1285	help
1286	  Support for the PLD watchdog on some Kontron ETX and COMexpress
1287	  (ETXexpress) modules
1288
1289	  This driver can also be built as a module. If so, the module will be
1290	  called kempld_wdt.
1291
1292config SC1200_WDT
1293	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1294	depends on X86
1295	help
1296	  This is a driver for National Semiconductor PC87307/PC97307 hardware
1297	  watchdog cards as found on the SC1200. This watchdog is mainly used
1298	  for power management purposes and can be used to power down the device
1299	  during inactivity periods (includes interrupt activity monitoring).
1300
1301	  To compile this driver as a module, choose M here: the
1302	  module will be called sc1200wdt.
1303
1304	  Most people will say N.
1305
1306config SCx200_WDT
1307	tristate "National Semiconductor SCx200 Watchdog"
1308	depends on SCx200 && PCI
1309	help
1310	  Enable the built-in watchdog timer support on the National
1311	  Semiconductor SCx200 processors.
1312
1313	  If compiled as a module, it will be called scx200_wdt.
1314
1315config PC87413_WDT
1316	tristate "NS PC87413 watchdog"
1317	depends on X86
1318	help
1319	  This is the driver for the hardware watchdog on the PC87413 chipset
1320	  This watchdog simply watches your kernel to make sure it doesn't
1321	  freeze, and if it does, it reboots your computer after a certain
1322	  amount of time.
1323
1324	  To compile this driver as a module, choose M here: the
1325	  module will be called pc87413_wdt.
1326
1327	  Most people will say N.
1328
1329config NV_TCO
1330	tristate "nVidia TCO Timer/Watchdog"
1331	depends on X86 && PCI
1332	help
1333	  Hardware driver for the TCO timer built into the nVidia Hub family
1334	  (such as the MCP51).  The TCO (Total Cost of Ownership) timer is a
1335	  watchdog timer that will reboot the machine after its second
1336	  expiration. The expiration time can be configured with the
1337	  "heartbeat" parameter.
1338
1339	  On some motherboards the driver may fail to reset the chipset's
1340	  NO_REBOOT flag which prevents the watchdog from rebooting the
1341	  machine. If this is the case you will get a kernel message like
1342	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1343
1344	  To compile this driver as a module, choose M here: the
1345	  module will be called nv_tco.
1346
1347config RDC321X_WDT
1348	tristate "RDC R-321x SoC watchdog"
1349	depends on X86_RDC321X || COMPILE_TEST
1350	depends on PCI
1351	help
1352	  This is the driver for the built in hardware watchdog
1353	  in the RDC R-321x SoC.
1354
1355	  To compile this driver as a module, choose M here: the
1356	  module will be called rdc321x_wdt.
1357
1358config 60XX_WDT
1359	tristate "SBC-60XX Watchdog Timer"
1360	depends on X86
1361	help
1362	  This driver can be used with the watchdog timer found on some
1363	  single board computers, namely the 6010 PII based computer.
1364	  It may well work with other cards.  It reads port 0x443 to enable
1365	  and re-set the watchdog timer, and reads port 0x45 to disable
1366	  the watchdog.  If you have a card that behave in similar ways,
1367	  you can probably make this driver work with your card as well.
1368
1369	  You can compile this driver directly into the kernel, or use
1370	  it as a module.  The module will be called sbc60xxwdt.
1371
1372config SBC8360_WDT
1373	tristate "SBC8360 Watchdog Timer"
1374	depends on X86_32
1375	help
1376
1377	  This is the driver for the hardware watchdog on the SBC8360 Single
1378	  Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1379
1380	  To compile this driver as a module, choose M here: the
1381	  module will be called sbc8360.
1382
1383	  Most people will say N.
1384
1385config SBC7240_WDT
1386	tristate "SBC Nano 7240 Watchdog Timer"
1387	depends on X86_32 && !UML
1388	help
1389	  This is the driver for the hardware watchdog found on the IEI
1390	  single board computers EPIC Nano 7240 (and likely others). This
1391	  watchdog simply watches your kernel to make sure it doesn't freeze,
1392	  and if it does, it reboots your computer after a certain amount of
1393	  time.
1394
1395	  To compile this driver as a module, choose M here: the
1396	  module will be called sbc7240_wdt.
1397
1398config CPU5_WDT
1399	tristate "SMA CPU5 Watchdog"
1400	depends on X86
1401	help
1402	  TBD.
1403	  To compile this driver as a module, choose M here: the
1404	  module will be called cpu5wdt.
1405
1406config SMSC_SCH311X_WDT
1407	tristate "SMSC SCH311X Watchdog Timer"
1408	depends on X86
1409	help
1410	  This is the driver for the hardware watchdog timer on the
1411	  SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1412	  (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1413	  serial ports).
1414
1415	  To compile this driver as a module, choose M here: the
1416	  module will be called sch311x_wdt.
1417
1418config SMSC37B787_WDT
1419	tristate "Winbond SMsC37B787 Watchdog Timer"
1420	depends on X86
1421	help
1422	  This is the driver for the hardware watchdog component on the
1423	  Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1424	  from Vision Systems and maybe others.
1425
1426	  This watchdog simply watches your kernel to make sure it doesn't
1427	  freeze, and if it does, it reboots your computer after a certain
1428	  amount of time.
1429
1430	  Usually a userspace daemon will notify the kernel WDT driver that
1431	  userspace is still alive, at regular intervals.
1432
1433	  To compile this driver as a module, choose M here: the
1434	  module will be called smsc37b787_wdt.
1435
1436	  Most people will say N.
1437
1438config TQMX86_WDT
1439	tristate "TQ-Systems TQMX86 Watchdog Timer"
1440	depends on X86
1441	select WATCHDOG_CORE
1442	help
1443	This is the driver for the hardware watchdog timer in the TQMX86 IO
1444	controller found on some of their ComExpress Modules.
1445
1446	To compile this driver as a module, choose M here; the module
1447	will be called tqmx86_wdt.
1448
1449	Most people will say N.
1450
1451config VIA_WDT
1452	tristate "VIA Watchdog Timer"
1453	depends on X86 && PCI
1454	select WATCHDOG_CORE
1455	help
1456	This is the driver for the hardware watchdog timer on VIA
1457	southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1458
1459	To compile this driver as a module, choose M here; the module
1460	will be called via_wdt.
1461
1462	Most people will say N.
1463
1464config W83627HF_WDT
1465	tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1466	depends on X86
1467	select WATCHDOG_CORE
1468	help
1469	  This is the driver for the hardware watchdog on the following
1470	  Super I/O chips.
1471		W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1472		W83637HF
1473		W83667HG/HG-B
1474		W83687THF
1475		W83697HF
1476		W83697UG
1477		NCT6775
1478		NCT6776
1479		NCT6779
1480		NCT6791
1481		NCT6792
1482		NCT6102D/04D/06D
1483		NCT6116D
1484
1485	  This watchdog simply watches your kernel to make sure it doesn't
1486	  freeze, and if it does, it reboots your computer after a certain
1487	  amount of time.
1488
1489	  To compile this driver as a module, choose M here: the
1490	  module will be called w83627hf_wdt.
1491
1492	  Most people will say N.
1493
1494config W83877F_WDT
1495	tristate "W83877F (EMACS) Watchdog Timer"
1496	depends on X86
1497	help
1498	  This is the driver for the hardware watchdog on the W83877F chipset
1499	  as used in EMACS PC-104 motherboards (and likely others).  This
1500	  watchdog simply watches your kernel to make sure it doesn't freeze,
1501	  and if it does, it reboots your computer after a certain amount of
1502	  time.
1503
1504	  To compile this driver as a module, choose M here: the
1505	  module will be called w83877f_wdt.
1506
1507	  Most people will say N.
1508
1509config W83977F_WDT
1510	tristate "W83977F (PCM-5335) Watchdog Timer"
1511	depends on X86
1512	help
1513	  This is the driver for the hardware watchdog on the W83977F I/O chip
1514	  as used in AAEON's PCM-5335 SBC (and likely others).  This
1515	  watchdog simply watches your kernel to make sure it doesn't freeze,
1516	  and if it does, it reboots your computer after a certain amount of
1517	  time.
1518
1519	  To compile this driver as a module, choose M here: the
1520	  module will be called w83977f_wdt.
1521
1522config MACHZ_WDT
1523	tristate "ZF MachZ Watchdog"
1524	depends on X86
1525	help
1526	  If you are using a ZF Micro MachZ processor, say Y here, otherwise
1527	  N.  This is the driver for the watchdog timer built-in on that
1528	  processor using ZF-Logic interface.  This watchdog simply watches
1529	  your kernel to make sure it doesn't freeze, and if it does, it
1530	  reboots your computer after a certain amount of time.
1531
1532	  To compile this driver as a module, choose M here: the
1533	  module will be called machzwd.
1534
1535config SBC_EPX_C3_WATCHDOG
1536	tristate "Winsystems SBC EPX-C3 watchdog"
1537	depends on X86
1538	help
1539	  This is the driver for the built-in watchdog timer on the EPX-C3
1540	  Single-board computer made by Winsystems, Inc.
1541
1542	  *Note*: This hardware watchdog is not probeable and thus there
1543	  is no way to know if writing to its IO address will corrupt
1544	  your system or have any real effect.  The only way to be sure
1545	  that this driver does what you want is to make sure you
1546	  are running it on an EPX-C3 from Winsystems with the watchdog
1547	  timer at IO address 0x1ee and 0x1ef.  It will write to both those
1548	  IO ports.  Basically, the assumption is made that if you compile
1549	  this driver into your kernel and/or load it as a module, that you
1550	  know what you are doing and that you are in fact running on an
1551	  EPX-C3 board!
1552
1553	  To compile this driver as a module, choose M here: the
1554	  module will be called sbc_epx_c3.
1555
1556config INTEL_MEI_WDT
1557	tristate "Intel MEI iAMT Watchdog"
1558	depends on INTEL_MEI && X86
1559	select WATCHDOG_CORE
1560	help
1561	  A device driver for the Intel MEI iAMT watchdog.
1562
1563	  The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1564	  Whenever the OS hangs or crashes, iAMT will send an event
1565	  to any subscriber to this event. The watchdog doesn't reset the
1566	  the platform.
1567
1568	  To compile this driver as a module, choose M here:
1569	  the module will be called mei_wdt.
1570
1571config NI903X_WDT
1572	tristate "NI 903x/913x Watchdog"
1573	depends on X86 && ACPI
1574	select WATCHDOG_CORE
1575	help
1576	  This is the driver for the watchdog timer on the National Instruments
1577	  903x/913x real-time controllers.
1578
1579	  To compile this driver as a module, choose M here: the module will be
1580	  called ni903x_wdt.
1581
1582config NIC7018_WDT
1583	tristate "NIC7018 Watchdog"
1584	depends on X86 && ACPI
1585	select WATCHDOG_CORE
1586	help
1587	  Support for National Instruments NIC7018 Watchdog.
1588
1589	  To compile this driver as a module, choose M here: the module will be
1590	  called nic7018_wdt.
1591
1592# M68K Architecture
1593
1594config M54xx_WATCHDOG
1595	tristate "MCF54xx watchdog support"
1596	depends on M548x
1597	help
1598	  To compile this driver as a module, choose M here: the
1599	  module will be called m54xx_wdt.
1600
1601# MicroBlaze Architecture
1602
1603# MIPS Architecture
1604
1605config ATH79_WDT
1606	tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1607	depends on ATH79 || (ARM && COMPILE_TEST)
1608	help
1609	  Hardware driver for the built-in watchdog timer on the Atheros
1610	  AR71XX/AR724X/AR913X SoCs.
1611
1612config BCM47XX_WDT
1613	tristate "Broadcom BCM47xx Watchdog Timer"
1614	depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1615	select WATCHDOG_CORE
1616	help
1617	  Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1618
1619config RC32434_WDT
1620	tristate "IDT RC32434 SoC Watchdog Timer"
1621	depends on MIKROTIK_RB532
1622	help
1623	  Hardware driver for the IDT RC32434 SoC built-in
1624	  watchdog timer.
1625
1626	  To compile this driver as a module, choose M here: the
1627	  module will be called rc32434_wdt.
1628
1629config INDYDOG
1630	tristate "Indy/I2 Hardware Watchdog"
1631	depends on SGI_HAS_INDYDOG
1632	help
1633	  Hardware driver for the Indy's/I2's watchdog. This is a
1634	  watchdog timer that will reboot the machine after a 60 second
1635	  timer expired and no process has written to /dev/watchdog during
1636	  that time.
1637
1638config JZ4740_WDT
1639	tristate "Ingenic jz4740 SoC hardware watchdog"
1640	depends on MIPS
1641	depends on COMMON_CLK
1642	select WATCHDOG_CORE
1643	select MFD_SYSCON
1644	help
1645	  Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1646
1647config WDT_MTX1
1648	tristate "MTX-1 Hardware Watchdog"
1649	depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1650	help
1651	  Hardware driver for the MTX-1 boards. This is a watchdog timer that
1652	  will reboot the machine after a 100 seconds timer expired.
1653
1654config SIBYTE_WDOG
1655	tristate "Sibyte SoC hardware watchdog"
1656	depends on CPU_SB1
1657	help
1658	  Watchdog driver for the built in watchdog hardware in Sibyte
1659	  SoC processors.  There are apparently two watchdog timers
1660	  on such processors; this driver supports only the first one,
1661	  because currently Linux only supports exporting one watchdog
1662	  to userspace.
1663
1664	  To compile this driver as a loadable module, choose M here.
1665	  The module will be called sb_wdog.
1666
1667config AR7_WDT
1668	tristate "TI AR7 Watchdog Timer"
1669	depends on AR7 || (MIPS && 32BIT && COMPILE_TEST)
1670	help
1671	  Hardware driver for the TI AR7 Watchdog Timer.
1672
1673config TXX9_WDT
1674	tristate "Toshiba TXx9 Watchdog Timer"
1675	depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
1676	select WATCHDOG_CORE
1677	help
1678	  Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1679
1680config OCTEON_WDT
1681	tristate "Cavium OCTEON SOC family Watchdog Timer"
1682	depends on CAVIUM_OCTEON_SOC
1683	default y
1684	select WATCHDOG_CORE
1685	select EXPORT_UASM if OCTEON_WDT = m
1686	help
1687	  Hardware driver for OCTEON's on chip watchdog timer.
1688	  Enables the watchdog for all cores running Linux. It
1689	  installs a NMI handler and pokes the watchdog based on an
1690	  interrupt.  On first expiration of the watchdog, the
1691	  interrupt handler pokes it.  The second expiration causes an
1692	  NMI that prints a message. The third expiration causes a
1693	  global soft reset.
1694
1695	  When userspace has /dev/watchdog open, no poking is done
1696	  from the first interrupt, it is then only poked when the
1697	  device is written.
1698
1699config BCM63XX_WDT
1700	tristate "Broadcom BCM63xx hardware watchdog"
1701	depends on BCM63XX
1702	help
1703	  Watchdog driver for the built in watchdog hardware in Broadcom
1704	  BCM63xx SoC.
1705
1706	  To compile this driver as a loadable module, choose M here.
1707	  The module will be called bcm63xx_wdt.
1708
1709config BCM2835_WDT
1710	tristate "Broadcom BCM2835 hardware watchdog"
1711	depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1712	select WATCHDOG_CORE
1713	help
1714	  Watchdog driver for the built in watchdog hardware in Broadcom
1715	  BCM2835 SoC.
1716
1717	  To compile this driver as a loadable module, choose M here.
1718	  The module will be called bcm2835_wdt.
1719
1720config BCM_KONA_WDT
1721	tristate "BCM Kona Watchdog"
1722	depends on ARCH_BCM_MOBILE || COMPILE_TEST
1723	select WATCHDOG_CORE
1724	help
1725	  Support for the watchdog timer on the following Broadcom BCM281xx
1726	  family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1727	  BCM28155 variants.
1728
1729	  Say 'Y' or 'M' here to enable the driver. The module will be called
1730	  bcm_kona_wdt.
1731
1732config BCM_KONA_WDT_DEBUG
1733	bool "DEBUGFS support for BCM Kona Watchdog"
1734	depends on BCM_KONA_WDT
1735	help
1736	  If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1737	  access to the driver's internal data structures as well as watchdog
1738	  timer hardware registres.
1739
1740	  If in doubt, say 'N'.
1741
1742config BCM7038_WDT
1743	tristate "BCM7038 Watchdog"
1744	select WATCHDOG_CORE
1745	depends on HAS_IOMEM
1746	depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1747	help
1748	 Watchdog driver for the built-in hardware in Broadcom 7038 and
1749	 later SoCs used in set-top boxes.  BCM7038 was made public
1750	 during the 2004 CES, and since then, many Broadcom chips use this
1751	 watchdog block, including some cable modem chips.
1752
1753config IMGPDC_WDT
1754	tristate "Imagination Technologies PDC Watchdog Timer"
1755	depends on HAS_IOMEM
1756	depends on MIPS || COMPILE_TEST
1757	select WATCHDOG_CORE
1758	help
1759	  Driver for Imagination Technologies PowerDown Controller
1760	  Watchdog Timer.
1761
1762	  To compile this driver as a loadable module, choose M here.
1763	  The module will be called imgpdc_wdt.
1764
1765config LANTIQ_WDT
1766	tristate "Lantiq SoC watchdog"
1767	depends on LANTIQ
1768	select WATCHDOG_CORE
1769	help
1770	  Hardware driver for the Lantiq SoC Watchdog Timer.
1771
1772config LOONGSON1_WDT
1773	tristate "Loongson1 SoC hardware watchdog"
1774	depends on MACH_LOONGSON32
1775	select WATCHDOG_CORE
1776	help
1777	  Hardware driver for the Loongson1 SoC Watchdog Timer.
1778
1779config RALINK_WDT
1780	tristate "Ralink SoC watchdog"
1781	select WATCHDOG_CORE
1782	depends on RALINK
1783	help
1784	  Hardware driver for the Ralink SoC Watchdog Timer.
1785
1786config MT7621_WDT
1787	tristate "Mediatek SoC watchdog"
1788	select WATCHDOG_CORE
1789	depends on SOC_MT7620 || SOC_MT7621
1790	help
1791	  Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1792
1793config PIC32_WDT
1794	tristate "Microchip PIC32 hardware watchdog"
1795	select WATCHDOG_CORE
1796	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1797	help
1798	  Watchdog driver for the built in watchdog hardware in a PIC32.
1799
1800	  Configuration bits must be set appropriately for the watchdog to be
1801	  controlled by this driver.
1802
1803	  To compile this driver as a loadable module, choose M here.
1804	  The module will be called pic32-wdt.
1805
1806config PIC32_DMT
1807	tristate "Microchip PIC32 Deadman Timer"
1808	select WATCHDOG_CORE
1809	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1810	help
1811	  Watchdog driver for PIC32 instruction fetch counting timer. This
1812	  specific timer is typically be used in mission critical and safety
1813	  critical applications, where any single failure of the software
1814	  functionality and sequencing must be detected.
1815
1816	  To compile this driver as a loadable module, choose M here.
1817	  The module will be called pic32-dmt.
1818
1819# PARISC Architecture
1820
1821# POWERPC Architecture
1822
1823config GEF_WDT
1824	tristate "GE Watchdog Timer"
1825	depends on GE_FPGA
1826	help
1827	  Watchdog timer found in a number of GE single board computers.
1828
1829config MPC5200_WDT
1830	bool "MPC52xx Watchdog Timer"
1831	depends on PPC_MPC52xx || COMPILE_TEST
1832	help
1833	  Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1834
1835config 8xxx_WDT
1836	tristate "MPC8xxx Platform Watchdog Timer"
1837	depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1838	select WATCHDOG_CORE
1839	help
1840	  This driver is for a SoC level watchdog that exists on some
1841	  Freescale PowerPC processors. So far this driver supports:
1842	  - MPC8xx watchdogs
1843	  - MPC83xx watchdogs
1844	  - MPC86xx watchdogs
1845
1846	  For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1847
1848config PIKA_WDT
1849	tristate "PIKA FPGA Watchdog"
1850	depends on WARP || (PPC64 && COMPILE_TEST)
1851	default y
1852	help
1853	  This enables the watchdog in the PIKA FPGA. Currently used on
1854	  the Warp platform.
1855
1856config BOOKE_WDT
1857	tristate "PowerPC Book-E Watchdog Timer"
1858	depends on BOOKE || 4xx
1859	select WATCHDOG_CORE
1860	help
1861	  Watchdog driver for PowerPC Book-E chips, such as the Freescale
1862	  MPC85xx SOCs and the IBM PowerPC 440.
1863
1864	  Please see Documentation/watchdog/watchdog-api.rst for
1865	  more information.
1866
1867config BOOKE_WDT_DEFAULT_TIMEOUT
1868	int "PowerPC Book-E Watchdog Timer Default Timeout"
1869	depends on BOOKE_WDT
1870	default 38 if PPC_FSL_BOOK3E
1871	range 0 63 if PPC_FSL_BOOK3E
1872	default 3 if !PPC_FSL_BOOK3E
1873	range 0 3 if !PPC_FSL_BOOK3E
1874	help
1875	  Select the default watchdog timer period to be used by the PowerPC
1876	  Book-E watchdog driver.  A watchdog "event" occurs when the bit
1877	  position represented by this number transitions from zero to one.
1878
1879	  For Freescale Book-E processors, this is a number between 0 and 63.
1880	  For other Book-E processors, this is a number between 0 and 3.
1881
1882	  The value can be overridden by the wdt_period command-line parameter.
1883
1884config MEN_A21_WDT
1885	tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1886	select WATCHDOG_CORE
1887	depends on GPIOLIB || COMPILE_TEST
1888	help
1889	  Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1890
1891	  The driver can also be built as a module. If so, the module will be
1892	  called mena21_wdt.
1893
1894	  If unsure select N here.
1895
1896# PPC64 Architecture
1897
1898config WATCHDOG_RTAS
1899	tristate "RTAS watchdog"
1900	depends on PPC_RTAS
1901	help
1902	  This driver adds watchdog support for the RTAS watchdog.
1903
1904	  To compile this driver as a module, choose M here. The module
1905	  will be called wdrtas.
1906
1907# S390 Architecture
1908
1909config DIAG288_WATCHDOG
1910	tristate "System z diag288 Watchdog"
1911	depends on S390
1912	select WATCHDOG_CORE
1913	help
1914	  IBM s/390 and zSeries machines running under z/VM 5.1 or later
1915	  provide a virtual watchdog timer to their guest that cause a
1916	  user define Control Program command to be executed after a
1917	  timeout.
1918	  LPAR provides a very similar interface. This driver handles
1919	  both.
1920
1921	  To compile this driver as a module, choose M here. The module
1922	  will be called diag288_wdt.
1923
1924# SUPERH (sh + sh64) Architecture
1925
1926config SH_WDT
1927	tristate "SuperH Watchdog"
1928	depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1929	select WATCHDOG_CORE
1930	help
1931	  This driver adds watchdog support for the integrated watchdog in the
1932	  SuperH processors. If you have one of these processors and wish
1933	  to have watchdog support enabled, say Y, otherwise say N.
1934
1935	  As a side note, saying Y here will automatically boost HZ to 1000
1936	  so that the timer has a chance to clear the overflow counter. On
1937	  slower systems (such as the SH-2 and SH-3) this will likely yield
1938	  some performance issues. As such, the WDT should be avoided here
1939	  unless it is absolutely necessary.
1940
1941	  To compile this driver as a module, choose M here: the
1942	  module will be called shwdt.
1943
1944# SPARC Architecture
1945
1946# SPARC64 Architecture
1947
1948config WATCHDOG_CP1XXX
1949	tristate "CP1XXX Hardware Watchdog support"
1950	depends on SPARC64 && PCI
1951	help
1952	  This is the driver for the hardware watchdog timers present on
1953	  Sun Microsystems CompactPCI models CP1400 and CP1500.
1954
1955	  To compile this driver as a module, choose M here: the
1956	  module will be called cpwatchdog.
1957
1958	  If you do not have a CompactPCI model CP1400 or CP1500, or
1959	  another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1960	  you should say N to this option.
1961
1962config WATCHDOG_RIO
1963	tristate "RIO Hardware Watchdog support"
1964	depends on SPARC64 && PCI
1965	help
1966	  Say Y here to support the hardware watchdog capability on Sun RIO
1967	  machines.  The watchdog timeout period is normally one minute but
1968	  can be changed with a boot-time parameter.
1969
1970config WATCHDOG_SUN4V
1971	tristate "Sun4v Watchdog support"
1972	select WATCHDOG_CORE
1973	depends on SPARC64
1974	help
1975	  Say Y here to support the hypervisor watchdog capability embedded
1976	  in the SPARC sun4v architecture.
1977
1978	  To compile this driver as a module, choose M here. The module will
1979	  be called sun4v_wdt.
1980
1981# XTENSA Architecture
1982
1983# Xen Architecture
1984
1985config XEN_WDT
1986	tristate "Xen Watchdog support"
1987	depends on XEN
1988	select WATCHDOG_CORE
1989	help
1990	  Say Y here to support the hypervisor watchdog capability provided
1991	  by Xen 4.0 and newer.  The watchdog timeout period is normally one
1992	  minute but can be changed with a boot-time parameter.
1993
1994config UML_WATCHDOG
1995	tristate "UML watchdog"
1996	depends on UML || COMPILE_TEST
1997
1998#
1999# ISA-based Watchdog Cards
2000#
2001
2002comment "ISA-based Watchdog Cards"
2003	depends on ISA
2004
2005config PCWATCHDOG
2006	tristate "Berkshire Products ISA-PC Watchdog"
2007	depends on ISA
2008	help
2009	  This is the driver for the Berkshire Products ISA-PC Watchdog card.
2010	  This card simply watches your kernel to make sure it doesn't freeze,
2011	  and if it does, it reboots your computer after a certain amount of
2012	  time. This driver is like the WDT501 driver but for different
2013	  hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>.
2014	  The PC watchdog cards can be ordered from <http://www.berkprod.com/>.
2015
2016	  To compile this driver as a module, choose M here: the
2017	  module will be called pcwd.
2018
2019	  Most people will say N.
2020
2021config MIXCOMWD
2022	tristate "Mixcom Watchdog"
2023	depends on ISA
2024	help
2025	  This is a driver for the Mixcom hardware watchdog cards.  This
2026	  watchdog 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.
2029
2030	  To compile this driver as a module, choose M here: the
2031	  module will be called mixcomwd.
2032
2033	  Most people will say N.
2034
2035config WDT
2036	tristate "WDT Watchdog timer"
2037	depends on ISA
2038	help
2039	  If you have a WDT500P or WDT501P watchdog board, say Y here,
2040	  otherwise N. It is not possible to probe for this board, which means
2041	  that you have to inform the kernel about the IO port and IRQ that
2042	  is needed (you can do this via the io and irq parameters)
2043
2044	  To compile this driver as a module, choose M here: the
2045	  module will be called wdt.
2046
2047#
2048# PCI-based Watchdog Cards
2049#
2050
2051comment "PCI-based Watchdog Cards"
2052	depends on PCI
2053
2054config PCIPCWATCHDOG
2055	tristate "Berkshire Products PCI-PC Watchdog"
2056	depends on PCI
2057	help
2058	  This is the driver for the Berkshire Products PCI-PC Watchdog card.
2059	  This card simply watches your kernel to make sure it doesn't freeze,
2060	  and if it does, it reboots your computer after a certain amount of
2061	  time. The card can also monitor the internal temperature of the PC.
2062	  More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2063
2064	  To compile this driver as a module, choose M here: the
2065	  module will be called pcwd_pci.
2066
2067	  Most people will say N.
2068
2069config WDTPCI
2070	tristate "PCI-WDT500/501 Watchdog timer"
2071	depends on PCI
2072	help
2073	  If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2074
2075	  If you have a PCI-WDT501 watchdog board then you can enable the
2076	  temperature sensor by setting the type parameter to 501.
2077
2078	  If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2079	  can do this via the tachometer parameter. Only do this if you have a
2080	  fan tachometer actually set up.
2081
2082	  To compile this driver as a module, choose M here: the
2083	  module will be called wdt_pci.
2084
2085#
2086# USB-based Watchdog Cards
2087#
2088
2089comment "USB-based Watchdog Cards"
2090	depends on USB
2091
2092config USBPCWATCHDOG
2093	tristate "Berkshire Products USB-PC Watchdog"
2094	depends on USB
2095	help
2096	  This is the driver for the Berkshire Products USB-PC Watchdog card.
2097	  This card simply watches your kernel to make sure it doesn't freeze,
2098	  and if it does, it reboots your computer after a certain amount of
2099	  time. The card can also monitor the internal temperature of the PC.
2100	  More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2101
2102	  To compile this driver as a module, choose M here: the
2103	  module will be called pcwd_usb.
2104
2105	  Most people will say N.
2106
2107config KEEMBAY_WATCHDOG
2108	tristate "Intel Keem Bay SoC non-secure watchdog"
2109	depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST)
2110	select WATCHDOG_CORE
2111	help
2112	 This option enable support for an In-secure watchdog timer driver for
2113	 Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every
2114	 count unit. An interrupt will be triggered, when the count crosses
2115	 the threshold configured in the register.
2116
2117	 To compile this driver as a module, choose M here: the
2118	 module will be called keembay_wdt.
2119
2120endif # WATCHDOG
2121