xref: /openbmc/linux/drivers/watchdog/Kconfig (revision 2cf1c348)
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	depends on I2C
211	select WATCHDOG_CORE
212	help
213	  Support for the watchdog in the DA9063 PMIC.
214
215	  This driver can be built as a module. The module name is da9063_wdt.
216
217config DA9062_WATCHDOG
218	tristate "Dialog DA9062/61 Watchdog"
219	depends on MFD_DA9062 || COMPILE_TEST
220	depends on I2C
221	select WATCHDOG_CORE
222	help
223	  Support for the watchdog in the DA9062 and DA9061 PMICs.
224
225	  This driver can be built as a module. The module name is da9062_wdt.
226
227config GPIO_WATCHDOG
228	tristate "Watchdog device controlled through GPIO-line"
229	depends on OF_GPIO
230	select WATCHDOG_CORE
231	help
232	  If you say yes here you get support for watchdog device
233	  controlled through GPIO-line.
234
235config GPIO_WATCHDOG_ARCH_INITCALL
236	bool "Register the watchdog as early as possible"
237	depends on GPIO_WATCHDOG=y
238	help
239	  In some situations, the default initcall level (module_init)
240	  in not early enough in the boot process to avoid the watchdog
241	  to be triggered.
242	  If you say yes here, the initcall level would be raised to
243	  arch_initcall.
244	  If in doubt, say N.
245
246config MENF21BMC_WATCHDOG
247	tristate "MEN 14F021P00 BMC Watchdog"
248	depends on MFD_MENF21BMC || COMPILE_TEST
249	depends on I2C
250	select WATCHDOG_CORE
251	help
252	  Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
253
254	  This driver can also be built as a module. If so the module
255	  will be called menf21bmc_wdt.
256
257config MENZ069_WATCHDOG
258	tristate "MEN 16Z069 Watchdog"
259	depends on MCB
260	select WATCHDOG_CORE
261	help
262	  Say Y here to include support for the MEN 16Z069 Watchdog.
263
264	  This driver can also be built as a module. If so the module
265	  will be called menz069_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
342config SL28CPLD_WATCHDOG
343	tristate "Kontron sl28cpld Watchdog"
344	depends on MFD_SL28CPLD || COMPILE_TEST
345	select WATCHDOG_CORE
346	help
347	  Say Y here to include support for the watchdog timer
348	  on the Kontron sl28 CPLD.
349
350	  To compile this driver as a module, choose M here: the
351	  module will be called sl28cpld_wdt.
352
353# ALPHA Architecture
354
355# ARM Architecture
356
357config ARM_SP805_WATCHDOG
358	tristate "ARM SP805 Watchdog"
359	depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
360	select WATCHDOG_CORE
361	help
362	  ARM Primecell SP805 Watchdog timer. This will reboot your system when
363	  the timeout is reached.
364
365config ARM_SBSA_WATCHDOG
366	tristate "ARM SBSA Generic Watchdog"
367	depends on ARM64
368	depends on ARM_ARCH_TIMER
369	select WATCHDOG_CORE
370	help
371	  ARM SBSA Generic Watchdog has two stage timeouts:
372	  the first signal (WS0) is for alerting the system by interrupt,
373	  the second one (WS1) is a real hardware reset.
374	  More details: ARM DEN0029B - Server Base System Architecture (SBSA)
375
376	  This driver can operate ARM SBSA Generic Watchdog as a single stage
377	  or a two stages watchdog, it depends on the module parameter "action".
378
379	  Note: the maximum timeout in the two stages mode is half of that in
380	  the single stage mode.
381
382	  To compile this driver as module, choose M here: The module
383	  will be called sbsa_gwdt.
384
385config ARMADA_37XX_WATCHDOG
386	tristate "Armada 37xx watchdog"
387	depends on ARCH_MVEBU || COMPILE_TEST
388	depends on HAS_IOMEM
389	select MFD_SYSCON
390	select WATCHDOG_CORE
391	help
392	   Say Y here to include support for the watchdog timer found on
393	   Marvell Armada 37xx SoCs.
394	   To compile this driver as a module, choose M here: the
395	   module will be called armada_37xx_wdt.
396
397config ASM9260_WATCHDOG
398	tristate "Alphascale ASM9260 watchdog"
399	depends on MACH_ASM9260 || COMPILE_TEST
400	depends on OF
401	select WATCHDOG_CORE
402	select RESET_CONTROLLER
403	help
404	  Watchdog timer embedded into Alphascale asm9260 chips. This will
405	  reboot your system when the timeout is reached.
406
407config AT91RM9200_WATCHDOG
408	tristate "AT91RM9200 watchdog"
409	depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
410	help
411	  Watchdog timer embedded into AT91RM9200 chips. This will reboot your
412	  system when the timeout is reached.
413
414config AT91SAM9X_WATCHDOG
415	tristate "AT91SAM9X / AT91CAP9 watchdog"
416	depends on ARCH_AT91 || COMPILE_TEST
417	select WATCHDOG_CORE
418	help
419	  Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
420	  reboot your system when the timeout is reached.
421
422config SAMA5D4_WATCHDOG
423	tristate "Atmel SAMA5D4 Watchdog Timer"
424	depends on ARCH_AT91 || COMPILE_TEST
425	select WATCHDOG_CORE
426	help
427	  Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
428	  Its Watchdog Timer Mode Register can be written more than once.
429	  This will reboot your system when the timeout is reached.
430
431config CADENCE_WATCHDOG
432	tristate "Cadence Watchdog Timer"
433	depends on HAS_IOMEM
434	select WATCHDOG_CORE
435	help
436	  Say Y here if you want to include support for the watchdog
437	  timer in the Xilinx Zynq.
438
439config 21285_WATCHDOG
440	tristate "DC21285 watchdog"
441	depends on FOOTBRIDGE
442	help
443	  The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
444	  here if you wish to use this. Alternatively say M to compile the
445	  driver as a module, which will be called wdt285.
446
447	  This driver does not work on all machines. In particular, early CATS
448	  boards have hardware problems that will cause the machine to simply
449	  lock up if the watchdog fires.
450
451	  "If in doubt, leave it out" - say N.
452
453config 977_WATCHDOG
454	tristate "NetWinder WB83C977 watchdog"
455	depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
456	help
457	  Say Y here to include support for the WB977 watchdog included in
458	  NetWinder machines. Alternatively say M to compile the driver as
459	  a module, which will be called wdt977.
460
461	  Not sure? It's safe to say N.
462
463config FTWDT010_WATCHDOG
464	tristate "Faraday Technology FTWDT010 watchdog"
465	depends on ARM || COMPILE_TEST
466	select WATCHDOG_CORE
467	default ARCH_GEMINI
468	help
469	  Say Y here if to include support for the Faraday Technology
470	  FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
471	  family of devices.
472
473	  To compile this driver as a module, choose M here: the
474	  module will be called ftwdt010_wdt.
475
476config IXP4XX_WATCHDOG
477	tristate "IXP4xx Watchdog"
478	depends on ARCH_IXP4XX
479	select WATCHDOG_CORE
480	help
481	  Say Y here if to include support for the watchdog timer
482	  in the Intel IXP4xx network processors. This driver can
483	  be built as a module by choosing M. The module will
484	  be called ixp4xx_wdt.
485
486	  Note: The internal IXP4xx watchdog does a soft CPU reset
487	  which doesn't reset any peripherals. There are circumstances
488	  where the watchdog will fail to reset the board correctly
489	  (e.g., if the boot ROM is in an unreadable state).
490
491	  Say N if you are unsure.
492
493config S3C2410_WATCHDOG
494	tristate "S3C2410 Watchdog"
495	depends on ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || \
496		   COMPILE_TEST
497	select WATCHDOG_CORE
498	select MFD_SYSCON if ARCH_EXYNOS
499	help
500	  Watchdog timer block in the Samsung S3C24xx, S3C64xx, S5Pv210 and
501	  Exynos SoCs. This will reboot the system when the timer expires with
502	  the watchdog enabled.
503
504	  The driver is limited by the speed of the system's PCLK
505	  signal, so with reasonably fast systems (PCLK around 50-66MHz)
506	  then watchdog intervals of over approximately 20seconds are
507	  unavailable.
508
509	  Choose Y/M here only if you build for such Samsung SoC.
510	  The driver can be built as a module by choosing M, and will
511	  be called s3c2410_wdt.
512
513config SA1100_WATCHDOG
514	tristate "SA1100/PXA2xx watchdog"
515	depends on ARCH_SA1100 || ARCH_PXA
516	help
517	  Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
518	  reboot your system when timeout is reached.
519
520	  NOTE: once enabled, this timer cannot be disabled.
521
522	  To compile this driver as a module, choose M here: the
523	  module will be called sa1100_wdt.
524
525config DW_WATCHDOG
526	tristate "Synopsys DesignWare watchdog"
527	depends on HAS_IOMEM
528	select WATCHDOG_CORE
529	help
530	  Say Y here if to include support for the Synopsys DesignWare
531	  watchdog timer found in many chips.
532	  To compile this driver as a module, choose M here: the
533	  module will be called dw_wdt.
534
535config EP93XX_WATCHDOG
536	tristate "EP93xx Watchdog"
537	depends on ARCH_EP93XX || COMPILE_TEST
538	select WATCHDOG_CORE
539	help
540	  Say Y here if to include support for the watchdog timer
541	  embedded in the Cirrus Logic EP93xx family of devices.
542
543	  To compile this driver as a module, choose M here: the
544	  module will be called ep93xx_wdt.
545
546config OMAP_WATCHDOG
547	tristate "OMAP Watchdog"
548	depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
549	select WATCHDOG_CORE
550	help
551	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.
552	  Say 'Y' here to enable the
553	  OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
554
555config PNX4008_WATCHDOG
556	tristate "LPC32XX Watchdog"
557	depends on ARCH_LPC32XX || COMPILE_TEST
558	select WATCHDOG_CORE
559	help
560	  Say Y here if to include support for the watchdog timer
561	  in the LPC32XX processor.
562	  This driver can be built as a module by choosing M. The module
563	  will be called pnx4008_wdt.
564
565	  Say N if you are unsure.
566
567config DAVINCI_WATCHDOG
568	tristate "DaVinci watchdog"
569	depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
570	select WATCHDOG_CORE
571	help
572	  Say Y here if to include support for the watchdog timer
573	  in the DaVinci DM644x/DM646x or Keystone processors.
574	  To compile this driver as a module, choose M here: the
575	  module will be called davinci_wdt.
576
577	  NOTE: once enabled, this timer cannot be disabled.
578	  Say N if you are unsure.
579
580config K3_RTI_WATCHDOG
581	tristate "Texas Instruments K3 RTI watchdog"
582	depends on ARCH_K3 || COMPILE_TEST
583	select WATCHDOG_CORE
584	help
585	  Say Y here if you want to include support for the K3 watchdog
586	  timer (RTI module) available in the K3 generation of processors.
587
588config ORION_WATCHDOG
589	tristate "Orion watchdog"
590	depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST
591	depends on ARM
592	select WATCHDOG_CORE
593	help
594	  Say Y here if to include support for the watchdog timer
595	  in the Marvell Orion5x and Kirkwood ARM SoCs.
596	  To compile this driver as a module, choose M here: the
597	  module will be called orion_wdt.
598
599config RN5T618_WATCHDOG
600	tristate "Ricoh RN5T618 watchdog"
601	depends on MFD_RN5T618 || COMPILE_TEST
602	select WATCHDOG_CORE
603	help
604	  If you say yes here you get support for watchdog on the Ricoh
605	  RN5T618 PMIC.
606
607	  This driver can also be built as a module.  If so, the module
608	  will be called rn5t618_wdt.
609
610config SUNXI_WATCHDOG
611	tristate "Allwinner SoCs watchdog support"
612	depends on ARCH_SUNXI || COMPILE_TEST
613	select WATCHDOG_CORE
614	help
615	  Say Y here to include support for the watchdog timer
616	  in Allwinner SoCs.
617	  To compile this driver as a module, choose M here: the
618	  module will be called sunxi_wdt.
619
620config NPCM7XX_WATCHDOG
621	tristate "Nuvoton NPCM750 watchdog"
622	depends on ARCH_NPCM || COMPILE_TEST
623	default y if ARCH_NPCM7XX
624	select WATCHDOG_CORE
625	help
626	  Say Y here to include Watchdog timer support for the
627	  watchdog embedded into the NPCM7xx.
628	  This watchdog is used to reset the system and thus cannot be
629	  compiled as a module.
630
631config TWL4030_WATCHDOG
632	tristate "TWL4030 Watchdog"
633	depends on TWL4030_CORE
634	select WATCHDOG_CORE
635	help
636	  Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
637	  watchdog timer support for TWL4030 chips.
638
639config STMP3XXX_RTC_WATCHDOG
640	tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
641	depends on RTC_DRV_STMP || COMPILE_TEST
642	select WATCHDOG_CORE
643	help
644	  Say Y here to include support for the watchdog timer inside
645	  the RTC for the STMP37XX/378X or i.MX23/28 SoC.
646	  To compile this driver as a module, choose M here: the
647	  module will be called stmp3xxx_rtc_wdt.
648
649config TS4800_WATCHDOG
650	tristate "TS-4800 Watchdog"
651	depends on HAS_IOMEM && OF
652	depends on SOC_IMX51 || COMPILE_TEST
653	select WATCHDOG_CORE
654	select MFD_SYSCON
655	help
656	  Technologic Systems TS-4800 has watchdog timer implemented in
657	  an external FPGA. Say Y here if you want to support for the
658	  watchdog timer on TS-4800 board.
659
660config TS72XX_WATCHDOG
661	tristate "TS-72XX SBC Watchdog"
662	depends on MACH_TS72XX || COMPILE_TEST
663	select WATCHDOG_CORE
664	help
665	  Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
666	  watchdog timer implemented in a external CPLD chip. Say Y here
667	  if you want to support for the watchdog timer on TS-72XX boards.
668
669	  To compile this driver as a module, choose M here: the
670	  module will be called ts72xx_wdt.
671
672config MAX63XX_WATCHDOG
673	tristate "Max63xx watchdog"
674	depends on HAS_IOMEM
675	select WATCHDOG_CORE
676	help
677	  Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
678
679config MAX77620_WATCHDOG
680	tristate "Maxim Max77620 Watchdog Timer"
681	depends on MFD_MAX77620 || COMPILE_TEST
682	select WATCHDOG_CORE
683	help
684	  This is the driver for the Max77620 watchdog timer.
685	  Say 'Y' here to enable the watchdog timer support for
686	  MAX77620 chips. To compile this driver as a module,
687	  choose M here: the module will be called max77620_wdt.
688
689config IMX2_WDT
690	tristate "IMX2+ Watchdog"
691	depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
692	select REGMAP_MMIO
693	select WATCHDOG_CORE
694	help
695	  This is the driver for the hardware watchdog
696	  on the Freescale IMX2 and later processors.
697	  If you have one of these processors and wish to have
698	  watchdog support enabled, say Y, otherwise say N.
699
700	  To compile this driver as a module, choose M here: the
701	  module will be called imx2_wdt.
702
703config IMX_SC_WDT
704	tristate "IMX SC Watchdog"
705	depends on HAVE_ARM_SMCCC
706	depends on IMX_SCU
707	select WATCHDOG_CORE
708	help
709	  This is the driver for the system controller watchdog
710	  on the NXP i.MX SoCs with system controller inside, the
711	  watchdog driver will call ARM SMC API and trap into
712	  ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
713	  will request system controller to execute the operations.
714	  If you have one of these processors and wish to have
715	  watchdog support enabled, say Y, otherwise say N.
716
717	  To compile this driver as a module, choose M here: the
718	  module will be called imx_sc_wdt.
719
720config IMX7ULP_WDT
721	tristate "IMX7ULP Watchdog"
722	depends on ARCH_MXC || COMPILE_TEST
723	select WATCHDOG_CORE
724	help
725	  This is the driver for the hardware watchdog on the Freescale
726	  IMX7ULP and later processors. If you have one of these
727	  processors and wish to have watchdog support enabled,
728	  say Y, otherwise say N.
729
730	  To compile this driver as a module, choose M here: the
731	  module will be called imx7ulp_wdt.
732
733config DB500_WATCHDOG
734	tristate "ST-Ericsson DB800 watchdog"
735	depends on MFD_DB8500_PRCMU
736	select WATCHDOG_CORE
737	default y
738	help
739	  Say Y here to include Watchdog timer support for the watchdog
740	  existing in the prcmu of ST-Ericsson DB8500 platform.
741
742	  To compile this driver as a module, choose M here: the
743	  module will be called db500_wdt.
744
745config RETU_WATCHDOG
746	tristate "Retu watchdog"
747	depends on MFD_RETU
748	select WATCHDOG_CORE
749	help
750	  Retu watchdog driver for Nokia Internet Tablets (770, N800,
751	  N810). At least on N800 the watchdog cannot be disabled, so
752	  this driver is essential and you should enable it.
753
754	  To compile this driver as a module, choose M here: the
755	  module will be called retu_wdt.
756
757config MOXART_WDT
758	tristate "MOXART watchdog"
759	depends on ARCH_MOXART || COMPILE_TEST
760	help
761	  Say Y here to include Watchdog timer support for the watchdog
762	  existing on the MOXA ART SoC series platforms.
763
764	  To compile this driver as a module, choose M here: the
765	  module will be called moxart_wdt.
766
767config ST_LPC_WATCHDOG
768	tristate "STMicroelectronics LPC Watchdog"
769	depends on ARCH_STI || COMPILE_TEST
770	depends on OF
771	select WATCHDOG_CORE
772	help
773	  Say Y here to include STMicroelectronics Low Power Controller
774	  (LPC) based Watchdog timer support.
775
776	  To compile this driver as a module, choose M here: the
777	  module will be called st_lpc_wdt.
778
779config TEGRA_WATCHDOG
780	tristate "Tegra watchdog"
781	depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
782	select WATCHDOG_CORE
783	help
784	  Say Y here to include support for the watchdog timer
785	  embedded in NVIDIA Tegra SoCs.
786
787	  To compile this driver as a module, choose M here: the
788	  module will be called tegra_wdt.
789
790config QCOM_WDT
791	tristate "QCOM watchdog"
792	depends on HAS_IOMEM
793	depends on ARCH_QCOM || COMPILE_TEST
794	select WATCHDOG_CORE
795	help
796	  Say Y here to include Watchdog timer support for the watchdog found
797	  on QCOM chipsets.  Currently supported targets are the MSM8960,
798	  APQ8064, and IPQ8064.
799
800	  To compile this driver as a module, choose M here: the
801	  module will be called qcom_wdt.
802
803config MESON_GXBB_WATCHDOG
804	tristate "Amlogic Meson GXBB SoCs watchdog support"
805	depends on ARCH_MESON || COMPILE_TEST
806	select WATCHDOG_CORE
807	help
808	  Say Y here to include support for the watchdog timer
809	  in Amlogic Meson GXBB SoCs.
810	  To compile this driver as a module, choose M here: the
811	  module will be called meson_gxbb_wdt.
812
813config MESON_WATCHDOG
814	tristate "Amlogic Meson SoCs watchdog support"
815	depends on ARCH_MESON || COMPILE_TEST
816	select WATCHDOG_CORE
817	help
818	  Say Y here to include support for the watchdog timer
819	  in Amlogic Meson SoCs.
820	  To compile this driver as a module, choose M here: the
821	  module will be called meson_wdt.
822
823config MEDIATEK_WATCHDOG
824	tristate "Mediatek SoCs watchdog support"
825	depends on ARCH_MEDIATEK || COMPILE_TEST
826	default ARCH_MEDIATEK
827	select WATCHDOG_CORE
828	select RESET_CONTROLLER
829	help
830	  Say Y here to include support for the watchdog timer
831	  in Mediatek SoCs.
832	  To compile this driver as a module, choose M here: the
833	  module will be called mtk_wdt.
834
835config DIGICOLOR_WATCHDOG
836	tristate "Conexant Digicolor SoCs watchdog support"
837	depends on ARCH_DIGICOLOR || COMPILE_TEST
838	select WATCHDOG_CORE
839	help
840	  Say Y here to include support for the watchdog timer
841	  in Conexant Digicolor SoCs.
842	  To compile this driver as a module, choose M here: the
843	  module will be called digicolor_wdt.
844
845config ARM_SMC_WATCHDOG
846	tristate "ARM Secure Monitor Call based watchdog support"
847	depends on ARM || ARM64
848	depends on OF
849	depends on HAVE_ARM_SMCCC
850	select WATCHDOG_CORE
851	help
852	  Say Y here to include support for a watchdog timer
853	  implemented by the EL3 Secure Monitor on ARM platforms.
854	  Requires firmware support.
855	  To compile this driver as a module, choose M here: the
856	  module will be called arm_smc_wdt.
857
858config LPC18XX_WATCHDOG
859	tristate "LPC18xx/43xx Watchdog"
860	depends on ARCH_LPC18XX || COMPILE_TEST
861	depends on HAS_IOMEM
862	select WATCHDOG_CORE
863	help
864	  Say Y here if to include support for the watchdog timer
865	  in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
866	  processors.
867	  To compile this driver as a module, choose M here: the
868	  module will be called lpc18xx_wdt.
869
870config RENESAS_WDT
871	tristate "Renesas WDT Watchdog"
872	depends on ARCH_RENESAS || COMPILE_TEST
873	select WATCHDOG_CORE
874	help
875	  This driver adds watchdog support for the integrated watchdogs in the
876	  Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
877
878config RENESAS_RZAWDT
879	tristate "Renesas RZ/A WDT Watchdog"
880	depends on ARCH_RENESAS || COMPILE_TEST
881	select WATCHDOG_CORE
882	help
883	  This driver adds watchdog support for the integrated watchdogs in the
884	  Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
885
886config RENESAS_RZG2LWDT
887	tristate "Renesas RZ/G2L WDT Watchdog"
888	depends on ARCH_RENESAS || COMPILE_TEST
889	select WATCHDOG_CORE
890	help
891	  This driver adds watchdog support for the integrated watchdogs in the
892	  Renesas RZ/G2L SoCs. These watchdogs can be used to reset a system.
893
894config ASPEED_WATCHDOG
895	tristate "Aspeed BMC watchdog support"
896	depends on ARCH_ASPEED || COMPILE_TEST
897	select WATCHDOG_CORE
898	help
899	  Say Y here to include support for the watchdog timer
900	  in Aspeed BMC SoCs.
901
902	  This driver is required to reboot the SoC.
903
904	  To compile this driver as a module, choose M here: the
905	  module will be called aspeed_wdt.
906
907config STM32_WATCHDOG
908	tristate "STM32 Independent WatchDoG (IWDG) support"
909	depends on ARCH_STM32
910	select WATCHDOG_CORE
911	default y
912	help
913	  Say Y here to include support for the watchdog timer
914	  in stm32 SoCs.
915
916	  To compile this driver as a module, choose M here: the
917	  module will be called stm32_iwdg.
918
919config STPMIC1_WATCHDOG
920	tristate "STPMIC1 PMIC watchdog support"
921	depends on MFD_STPMIC1
922	select WATCHDOG_CORE
923	help
924	  Say Y here to include watchdog support embedded into STPMIC1 PMIC.
925	  If the watchdog timer expires, stpmic1 will shut down all its power
926	  supplies.
927
928	  To compile this driver as a module, choose M here: the
929	  module will be called spmic1_wdt.
930
931config UNIPHIER_WATCHDOG
932	tristate "UniPhier watchdog support"
933	depends on ARCH_UNIPHIER || COMPILE_TEST
934	depends on OF && MFD_SYSCON
935	select WATCHDOG_CORE
936	help
937	  Say Y here to include support watchdog timer embedded
938	  into the UniPhier system.
939
940	  To compile this driver as a module, choose M here: the
941	  module will be called uniphier_wdt.
942
943config RTD119X_WATCHDOG
944	bool "Realtek RTD119x/RTD129x watchdog support"
945	depends on ARCH_REALTEK || COMPILE_TEST
946	depends on OF
947	select WATCHDOG_CORE
948	default ARCH_REALTEK
949	help
950	  Say Y here to include support for the watchdog timer in
951	  Realtek RTD1295 SoCs.
952
953config REALTEK_OTTO_WDT
954	tristate "Realtek Otto MIPS watchdog support"
955	depends on MACH_REALTEK_RTL || COMPILE_TEST
956	depends on COMMON_CLK
957	select WATCHDOG_CORE
958	default MACH_REALTEK_RTL
959	help
960	  Say Y here to include support for the watchdog timer on Realtek
961	  RTL838x, RTL839x, RTL930x SoCs. This watchdog has pretimeout
962	  notifications and system reset on timeout.
963
964	  When built as a module this will be called realtek_otto_wdt.
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
982config VISCONTI_WATCHDOG
983	tristate "Toshiba Visconti series watchdog support"
984	depends on ARCH_VISCONTI || COMPILE_TEST
985	select WATCHDOG_CORE
986	help
987	  Say Y here to include support for the watchdog timer in Toshiba
988	  Visconti SoCs.
989
990config MSC313E_WATCHDOG
991	tristate "MStar MSC313e watchdog"
992	depends on ARCH_MSTARV7 || COMPILE_TEST
993	select WATCHDOG_CORE
994	help
995	  Say Y here to include support for the Watchdog timer embedded
996	  into MStar MSC313e chips. This will reboot your system when the
997	  timeout is reached.
998
999	  To compile this driver as a module, choose M here: the
1000	  module will be called msc313e_wdt.
1001
1002config APPLE_WATCHDOG
1003	tristate "Apple SoC watchdog"
1004	depends on ARCH_APPLE || COMPILE_TEST
1005	select WATCHDOG_CORE
1006	help
1007	  Say Y here to include support for the Watchdog found in Apple
1008	  SoCs such as the M1. Next to the common watchdog features this
1009	  driver is also required in order to reboot these SoCs.
1010
1011	  To compile this driver as a module, choose M here: the
1012	  module will be called apple_wdt.
1013
1014# X86 (i386 + ia64 + x86_64) Architecture
1015
1016config ACQUIRE_WDT
1017	tristate "Acquire SBC Watchdog Timer"
1018	depends on X86
1019	help
1020	  This is the driver for the hardware watchdog on Single Board
1021	  Computers produced by Acquire Inc (and others). This watchdog
1022	  simply watches your kernel to make sure it doesn't freeze, and if
1023	  it does, it reboots your computer after a certain amount of time.
1024
1025	  To compile this driver as a module, choose M here: the
1026	  module will be called acquirewdt.
1027
1028	  Most people will say N.
1029
1030config ADVANTECH_WDT
1031	tristate "Advantech SBC Watchdog Timer"
1032	depends on X86
1033	help
1034	  If you are configuring a Linux kernel for the Advantech single-board
1035	  computer, say `Y' here to support its built-in watchdog timer
1036	  feature. More information can be found at
1037	  <https://www.advantech.com.tw/products/>
1038
1039config ALIM1535_WDT
1040	tristate "ALi M1535 PMU Watchdog Timer"
1041	depends on X86 && PCI
1042	help
1043	  This is the driver for the hardware watchdog on the ALi M1535 PMU.
1044
1045	  To compile this driver as a module, choose M here: the
1046	  module will be called alim1535_wdt.
1047
1048	  Most people will say N.
1049
1050config ALIM7101_WDT
1051	tristate "ALi M7101 PMU Computer Watchdog"
1052	depends on PCI
1053	help
1054	  This is the driver for the hardware watchdog on the ALi M7101 PMU
1055	  as used in the x86 Cobalt servers and also found in some
1056	  SPARC Netra servers too.
1057
1058	  To compile this driver as a module, choose M here: the
1059	  module will be called alim7101_wdt.
1060
1061	  Most people will say N.
1062
1063config EBC_C384_WDT
1064	tristate "WinSystems EBC-C384 Watchdog Timer"
1065	depends on X86
1066	select ISA_BUS_API
1067	select WATCHDOG_CORE
1068	help
1069	  Enables watchdog timer support for the watchdog timer on the
1070	  WinSystems EBC-C384 motherboard. The timeout may be configured via
1071	  the timeout module parameter.
1072
1073config F71808E_WDT
1074	tristate "Fintek F718xx, F818xx Super I/O Watchdog"
1075	depends on X86
1076	select WATCHDOG_CORE
1077	help
1078	  This is the driver for the hardware watchdog on the Fintek F71808E,
1079	  F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and
1080	  F81866 Super I/O controllers.
1081
1082	  You can compile this driver directly into the kernel, or use
1083	  it as a module.  The module will be called f71808e_wdt.
1084
1085config SP5100_TCO
1086	tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
1087	depends on X86 && PCI
1088	select WATCHDOG_CORE
1089	help
1090	  Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
1091	  (Total Cost of Ownership) timer is a watchdog timer that will reboot
1092	  the machine after its expiration. The expiration time can be
1093	  configured with the "heartbeat" parameter.
1094
1095	  To compile this driver as a module, choose M here: the
1096	  module will be called sp5100_tco.
1097
1098config GEODE_WDT
1099	tristate "AMD Geode CS5535/CS5536 Watchdog"
1100	depends on CS5535_MFGPT
1101	help
1102	  This driver enables a watchdog capability built into the
1103	  CS5535/CS5536 companion chips for the AMD Geode GX and LX
1104	  processors.  This watchdog watches your kernel to make sure
1105	  it doesn't freeze, and if it does, it reboots your computer after
1106	  a certain amount of time.
1107
1108	  You can compile this driver directly into the kernel, or use
1109	  it as a module.  The module will be called geodewdt.
1110
1111config SC520_WDT
1112	tristate "AMD Elan SC520 processor Watchdog"
1113	depends on MELAN || COMPILE_TEST
1114	help
1115	  This is the driver for the hardware watchdog built in to the
1116	  AMD "Elan" SC520 microcomputer commonly used in embedded systems.
1117	  This watchdog simply watches your kernel to make sure it doesn't
1118	  freeze, and if it does, it reboots your computer after a certain
1119	  amount of time.
1120
1121	  You can compile this driver directly into the kernel, or use
1122	  it as a module.  The module will be called sc520_wdt.
1123
1124config SBC_FITPC2_WATCHDOG
1125	tristate "Compulab SBC-FITPC2 watchdog"
1126	depends on X86
1127	help
1128	  This is the driver for the built-in watchdog timer on the fit-PC2,
1129	  fit-PC2i, CM-iAM single-board computers made by Compulab.
1130
1131	  It's possible to enable the watchdog timer either from BIOS (F2) or
1132	  from booted Linux.
1133	  When the "Watchdog Timer Value" is enabled one can set 31-255 seconds
1134	  operational range.
1135
1136	  Entering BIOS setup temporarily disables watchdog operation regardless
1137	  of current state, so system will not be restarted while user is in
1138	  BIOS setup.
1139
1140	  Once the watchdog is enabled the system will be restarted every
1141	  "Watchdog Timer Value" period, so to prevent it user can restart or
1142	  disable the watchdog.
1143
1144	  To compile this driver as a module, choose M here: the
1145	  module will be called sbc_fitpc2_wdt.
1146
1147	  Most people will say N.
1148
1149config EUROTECH_WDT
1150	tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1151	depends on X86
1152	help
1153	  Enable support for the watchdog timer on the Eurotech CPU-1220 and
1154	  CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
1155	  information are at <http://www.eurotech.it/>.
1156
1157config IB700_WDT
1158	tristate "IB700 SBC Watchdog Timer"
1159	depends on X86
1160	help
1161	  This is the driver for the hardware watchdog on the IB700 Single
1162	  Board Computer produced by TMC Technology (www.tmc-uk.com). This
1163	  watchdog simply watches your kernel to make sure it doesn't freeze,
1164	  and if it does, it reboots your computer after a certain amount of time.
1165
1166	  This driver is like the WDT501 driver but for slightly different
1167	  hardware.
1168
1169	  To compile this driver as a module, choose M here: the
1170	  module will be called ib700wdt.
1171
1172	  Most people will say N.
1173
1174config IBMASR
1175	tristate "IBM Automatic Server Restart"
1176	depends on X86
1177	help
1178	  This is the driver for the IBM Automatic Server Restart watchdog
1179	  timer built-in into some eServer xSeries machines.
1180
1181	  To compile this driver as a module, choose M here: the
1182	  module will be called ibmasr.
1183
1184config WAFER_WDT
1185	tristate "ICP Single Board Computer Watchdog Timer"
1186	depends on X86
1187	help
1188	  This is a driver for the hardware watchdog on the ICP Single
1189	  Board Computer. This driver is working on (at least) the following
1190	  IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1191
1192	  To compile this driver as a module, choose M here: the
1193	  module will be called wafer5823wdt.
1194
1195config I6300ESB_WDT
1196	tristate "Intel 6300ESB Timer/Watchdog"
1197	depends on PCI
1198	select WATCHDOG_CORE
1199	help
1200	  Hardware driver for the watchdog timer built into the Intel
1201	  6300ESB controller hub.
1202
1203	  To compile this driver as a module, choose M here: the
1204	  module will be called i6300esb.
1205
1206config IE6XX_WDT
1207	tristate "Intel Atom E6xx Watchdog"
1208	depends on X86 && PCI
1209	select WATCHDOG_CORE
1210	select MFD_CORE
1211	select LPC_SCH
1212	help
1213	  Hardware driver for the watchdog timer built into the Intel
1214	  Atom E6XX (TunnelCreek) processor.
1215
1216	  To compile this driver as a module, choose M here: the
1217	  module will be called ie6xx_wdt.
1218
1219config INTEL_MID_WATCHDOG
1220	tristate "Intel MID Watchdog Timer"
1221	depends on X86_INTEL_MID
1222	select WATCHDOG_CORE
1223	help
1224	  Watchdog timer driver built into the Intel SCU for Intel MID
1225	  Platforms.
1226
1227	  This driver currently supports only the watchdog evolution
1228	  implementation in SCU, available for Merrifield generation.
1229
1230	  To compile this driver as a module, choose M here.
1231
1232config ITCO_WDT
1233	tristate "Intel TCO Timer/Watchdog"
1234	depends on (X86 || IA64) && PCI
1235	select WATCHDOG_CORE
1236	depends on I2C || I2C=n
1237	depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT
1238	select LPC_ICH if !EXPERT
1239	select I2C_I801 if !EXPERT && I2C
1240	help
1241	  Hardware driver for the intel TCO timer based watchdog devices.
1242	  These drivers are included in the Intel 82801 I/O Controller
1243	  Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1244	  controller hub.
1245
1246	  The TCO (Total Cost of Ownership) timer is a watchdog timer
1247	  that will reboot the machine after its second expiration. The
1248	  expiration time can be configured with the "heartbeat" parameter.
1249
1250	  On some motherboards the driver may fail to reset the chipset's
1251	  NO_REBOOT flag which prevents the watchdog from rebooting the
1252	  machine. If this is the case you will get a kernel message like
1253	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1254
1255	  To compile this driver as a module, choose M here: the
1256	  module will be called iTCO_wdt.
1257
1258config ITCO_VENDOR_SUPPORT
1259	bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1260	depends on ITCO_WDT
1261	help
1262	  Add vendor specific support to the intel TCO timer based watchdog
1263	  devices. At this moment we only have additional support for some
1264	  SuperMicro Inc. motherboards.
1265
1266config IT8712F_WDT
1267	tristate "IT8712F (Smart Guardian) Watchdog Timer"
1268	depends on X86
1269	help
1270	  This is the driver for the built-in watchdog timer on the IT8712F
1271	  Super I/0 chipset used on many motherboards.
1272
1273	  If the driver does not work, then make sure that the game port in
1274	  the BIOS is enabled.
1275
1276	  To compile this driver as a module, choose M here: the
1277	  module will be called it8712f_wdt.
1278
1279config IT87_WDT
1280	tristate "IT87 Watchdog Timer"
1281	depends on X86
1282	select WATCHDOG_CORE
1283	help
1284	  This is the driver for the hardware watchdog on the ITE IT8607,
1285	  IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1286	  IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1287	  IT8783 Super I/O chips.
1288
1289	  This watchdog simply watches your kernel to make sure it doesn't
1290	  freeze, and if it does, it reboots your computer after a certain
1291	  amount of time.
1292
1293	  To compile this driver as a module, choose M here: the module will
1294	  be called it87_wdt.
1295
1296config HP_WATCHDOG
1297	tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1298	select WATCHDOG_CORE
1299	depends on X86 && PCI
1300	help
1301	  A software monitoring watchdog and NMI handling driver. This driver
1302	  will detect lockups and provide a stack trace. This is a driver that
1303	  will only load on an HP ProLiant system with a minimum of iLO2 support.
1304	  To compile this driver as a module, choose M here: the module will be
1305	  called hpwdt.
1306
1307config HPWDT_NMI_DECODING
1308	bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1309	depends on HP_WATCHDOG
1310	default y
1311	help
1312	  Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1313	  "Generate NMI to System" virtual button.  When an NMI is claimed
1314	  by the driver, panic is called.
1315
1316config KEMPLD_WDT
1317	tristate "Kontron COM Watchdog Timer"
1318	depends on MFD_KEMPLD
1319	select WATCHDOG_CORE
1320	help
1321	  Support for the PLD watchdog on some Kontron ETX and COMexpress
1322	  (ETXexpress) modules
1323
1324	  This driver can also be built as a module. If so, the module will be
1325	  called kempld_wdt.
1326
1327config SC1200_WDT
1328	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1329	depends on X86
1330	help
1331	  This is a driver for National Semiconductor PC87307/PC97307 hardware
1332	  watchdog cards as found on the SC1200. This watchdog is mainly used
1333	  for power management purposes and can be used to power down the device
1334	  during inactivity periods (includes interrupt activity monitoring).
1335
1336	  To compile this driver as a module, choose M here: the
1337	  module will be called sc1200wdt.
1338
1339	  Most people will say N.
1340
1341config SCx200_WDT
1342	tristate "National Semiconductor SCx200 Watchdog"
1343	depends on SCx200 && PCI
1344	help
1345	  Enable the built-in watchdog timer support on the National
1346	  Semiconductor SCx200 processors.
1347
1348	  If compiled as a module, it will be called scx200_wdt.
1349
1350config PC87413_WDT
1351	tristate "NS PC87413 watchdog"
1352	depends on X86
1353	help
1354	  This is the driver for the hardware watchdog on the PC87413 chipset
1355	  This watchdog simply watches your kernel to make sure it doesn't
1356	  freeze, and if it does, it reboots your computer after a certain
1357	  amount of time.
1358
1359	  To compile this driver as a module, choose M here: the
1360	  module will be called pc87413_wdt.
1361
1362	  Most people will say N.
1363
1364config NV_TCO
1365	tristate "nVidia TCO Timer/Watchdog"
1366	depends on X86 && PCI
1367	help
1368	  Hardware driver for the TCO timer built into the nVidia Hub family
1369	  (such as the MCP51).  The TCO (Total Cost of Ownership) timer is a
1370	  watchdog timer that will reboot the machine after its second
1371	  expiration. The expiration time can be configured with the
1372	  "heartbeat" parameter.
1373
1374	  On some motherboards the driver may fail to reset the chipset's
1375	  NO_REBOOT flag which prevents the watchdog from rebooting the
1376	  machine. If this is the case you will get a kernel message like
1377	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1378
1379	  To compile this driver as a module, choose M here: the
1380	  module will be called nv_tco.
1381
1382config RDC321X_WDT
1383	tristate "RDC R-321x SoC watchdog"
1384	depends on X86_RDC321X || COMPILE_TEST
1385	depends on PCI
1386	help
1387	  This is the driver for the built in hardware watchdog
1388	  in the RDC R-321x SoC.
1389
1390	  To compile this driver as a module, choose M here: the
1391	  module will be called rdc321x_wdt.
1392
1393config 60XX_WDT
1394	tristate "SBC-60XX Watchdog Timer"
1395	depends on X86
1396	help
1397	  This driver can be used with the watchdog timer found on some
1398	  single board computers, namely the 6010 PII based computer.
1399	  It may well work with other cards.  It reads port 0x443 to enable
1400	  and re-set the watchdog timer, and reads port 0x45 to disable
1401	  the watchdog.  If you have a card that behave in similar ways,
1402	  you can probably make this driver work with your card as well.
1403
1404	  You can compile this driver directly into the kernel, or use
1405	  it as a module.  The module will be called sbc60xxwdt.
1406
1407config SBC8360_WDT
1408	tristate "SBC8360 Watchdog Timer"
1409	depends on X86_32
1410	help
1411
1412	  This is the driver for the hardware watchdog on the SBC8360 Single
1413	  Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1414
1415	  To compile this driver as a module, choose M here: the
1416	  module will be called sbc8360.
1417
1418	  Most people will say N.
1419
1420config SBC7240_WDT
1421	tristate "SBC Nano 7240 Watchdog Timer"
1422	depends on X86_32 && !UML
1423	help
1424	  This is the driver for the hardware watchdog found on the IEI
1425	  single board computers EPIC Nano 7240 (and likely others). This
1426	  watchdog simply watches your kernel to make sure it doesn't freeze,
1427	  and if it does, it reboots your computer after a certain amount of
1428	  time.
1429
1430	  To compile this driver as a module, choose M here: the
1431	  module will be called sbc7240_wdt.
1432
1433config CPU5_WDT
1434	tristate "SMA CPU5 Watchdog"
1435	depends on X86
1436	help
1437	  TBD.
1438	  To compile this driver as a module, choose M here: the
1439	  module will be called cpu5wdt.
1440
1441config SMSC_SCH311X_WDT
1442	tristate "SMSC SCH311X Watchdog Timer"
1443	depends on X86
1444	help
1445	  This is the driver for the hardware watchdog timer on the
1446	  SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1447	  (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1448	  serial ports).
1449
1450	  To compile this driver as a module, choose M here: the
1451	  module will be called sch311x_wdt.
1452
1453config SMSC37B787_WDT
1454	tristate "Winbond SMsC37B787 Watchdog Timer"
1455	depends on X86
1456	help
1457	  This is the driver for the hardware watchdog component on the
1458	  Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1459	  from Vision Systems and maybe others.
1460
1461	  This watchdog simply watches your kernel to make sure it doesn't
1462	  freeze, and if it does, it reboots your computer after a certain
1463	  amount of time.
1464
1465	  Usually a userspace daemon will notify the kernel WDT driver that
1466	  userspace is still alive, at regular intervals.
1467
1468	  To compile this driver as a module, choose M here: the
1469	  module will be called smsc37b787_wdt.
1470
1471	  Most people will say N.
1472
1473config TQMX86_WDT
1474	tristate "TQ-Systems TQMX86 Watchdog Timer"
1475	depends on X86
1476	select WATCHDOG_CORE
1477	help
1478	  This is the driver for the hardware watchdog timer in the TQMX86 IO
1479	  controller found on some of their ComExpress Modules.
1480
1481	  To compile this driver as a module, choose M here; the module
1482	  will be called tqmx86_wdt.
1483
1484	  Most people will say N.
1485
1486config VIA_WDT
1487	tristate "VIA Watchdog Timer"
1488	depends on X86 && PCI
1489	select WATCHDOG_CORE
1490	help
1491	  This is the driver for the hardware watchdog timer on VIA
1492	  southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1493
1494	  To compile this driver as a module, choose M here; the module
1495	  will be called via_wdt.
1496
1497	  Most people will say N.
1498
1499config W83627HF_WDT
1500	tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1501	depends on X86
1502	select WATCHDOG_CORE
1503	help
1504	  This is the driver for the hardware watchdog on the following
1505	  Super I/O chips.
1506		W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1507		W83637HF
1508		W83667HG/HG-B
1509		W83687THF
1510		W83697HF
1511		W83697UG
1512		NCT6775
1513		NCT6776
1514		NCT6779
1515		NCT6791
1516		NCT6792
1517		NCT6102D/04D/06D
1518		NCT6116D
1519
1520	  This watchdog simply watches your kernel to make sure it doesn't
1521	  freeze, and if it does, it reboots your computer after a certain
1522	  amount of time.
1523
1524	  To compile this driver as a module, choose M here: the
1525	  module will be called w83627hf_wdt.
1526
1527	  Most people will say N.
1528
1529config W83877F_WDT
1530	tristate "W83877F (EMACS) Watchdog Timer"
1531	depends on X86
1532	help
1533	  This is the driver for the hardware watchdog on the W83877F chipset
1534	  as used in EMACS PC-104 motherboards (and likely others).  This
1535	  watchdog simply watches your kernel to make sure it doesn't freeze,
1536	  and if it does, it reboots your computer after a certain amount of
1537	  time.
1538
1539	  To compile this driver as a module, choose M here: the
1540	  module will be called w83877f_wdt.
1541
1542	  Most people will say N.
1543
1544config W83977F_WDT
1545	tristate "W83977F (PCM-5335) Watchdog Timer"
1546	depends on X86
1547	help
1548	  This is the driver for the hardware watchdog on the W83977F I/O chip
1549	  as used in AAEON's PCM-5335 SBC (and likely others).  This
1550	  watchdog simply watches your kernel to make sure it doesn't freeze,
1551	  and if it does, it reboots your computer after a certain amount of
1552	  time.
1553
1554	  To compile this driver as a module, choose M here: the
1555	  module will be called w83977f_wdt.
1556
1557config MACHZ_WDT
1558	tristate "ZF MachZ Watchdog"
1559	depends on X86
1560	help
1561	  If you are using a ZF Micro MachZ processor, say Y here, otherwise
1562	  N.  This is the driver for the watchdog timer built-in on that
1563	  processor using ZF-Logic interface.  This watchdog simply watches
1564	  your kernel to make sure it doesn't freeze, and if it does, it
1565	  reboots your computer after a certain amount of time.
1566
1567	  To compile this driver as a module, choose M here: the
1568	  module will be called machzwd.
1569
1570config SBC_EPX_C3_WATCHDOG
1571	tristate "Winsystems SBC EPX-C3 watchdog"
1572	depends on X86
1573	help
1574	  This is the driver for the built-in watchdog timer on the EPX-C3
1575	  Single-board computer made by Winsystems, Inc.
1576
1577	  *Note*: This hardware watchdog is not probeable and thus there
1578	  is no way to know if writing to its IO address will corrupt
1579	  your system or have any real effect.  The only way to be sure
1580	  that this driver does what you want is to make sure you
1581	  are running it on an EPX-C3 from Winsystems with the watchdog
1582	  timer at IO address 0x1ee and 0x1ef.  It will write to both those
1583	  IO ports.  Basically, the assumption is made that if you compile
1584	  this driver into your kernel and/or load it as a module, that you
1585	  know what you are doing and that you are in fact running on an
1586	  EPX-C3 board!
1587
1588	  To compile this driver as a module, choose M here: the
1589	  module will be called sbc_epx_c3.
1590
1591config INTEL_MEI_WDT
1592	tristate "Intel MEI iAMT Watchdog"
1593	depends on INTEL_MEI && X86
1594	select WATCHDOG_CORE
1595	help
1596	  A device driver for the Intel MEI iAMT watchdog.
1597
1598	  The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1599	  Whenever the OS hangs or crashes, iAMT will send an event
1600	  to any subscriber to this event. The watchdog doesn't reset the
1601	  the platform.
1602
1603	  To compile this driver as a module, choose M here:
1604	  the module will be called mei_wdt.
1605
1606config NI903X_WDT
1607	tristate "NI 903x/913x Watchdog"
1608	depends on X86 && ACPI
1609	select WATCHDOG_CORE
1610	help
1611	  This is the driver for the watchdog timer on the National Instruments
1612	  903x/913x real-time controllers.
1613
1614	  To compile this driver as a module, choose M here: the module will be
1615	  called ni903x_wdt.
1616
1617config NIC7018_WDT
1618	tristate "NIC7018 Watchdog"
1619	depends on X86 && ACPI
1620	select WATCHDOG_CORE
1621	help
1622	  Support for National Instruments NIC7018 Watchdog.
1623
1624	  To compile this driver as a module, choose M here: the module will be
1625	  called nic7018_wdt.
1626
1627config SIEMENS_SIMATIC_IPC_WDT
1628	tristate "Siemens Simatic IPC Watchdog"
1629	depends on SIEMENS_SIMATIC_IPC
1630	select WATCHDOG_CORE
1631	help
1632	  This driver adds support for several watchdogs found in Industrial
1633	  PCs from Siemens.
1634
1635	  To compile this driver as a module, choose M here: the module will be
1636	  called simatic-ipc-wdt.
1637
1638# M68K Architecture
1639
1640config M54xx_WATCHDOG
1641	tristate "MCF54xx watchdog support"
1642	depends on M548x
1643	help
1644	  To compile this driver as a module, choose M here: the
1645	  module will be called m54xx_wdt.
1646
1647# MicroBlaze Architecture
1648
1649# MIPS Architecture
1650
1651config ATH79_WDT
1652	tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1653	depends on ATH79 || (ARM && COMPILE_TEST)
1654	help
1655	  Hardware driver for the built-in watchdog timer on the Atheros
1656	  AR71XX/AR724X/AR913X SoCs.
1657
1658config BCM47XX_WDT
1659	tristate "Broadcom BCM47xx Watchdog Timer"
1660	depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1661	select WATCHDOG_CORE
1662	help
1663	  Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1664
1665config RC32434_WDT
1666	tristate "IDT RC32434 SoC Watchdog Timer"
1667	depends on MIKROTIK_RB532
1668	help
1669	  Hardware driver for the IDT RC32434 SoC built-in
1670	  watchdog timer.
1671
1672	  To compile this driver as a module, choose M here: the
1673	  module will be called rc32434_wdt.
1674
1675config INDYDOG
1676	tristate "Indy/I2 Hardware Watchdog"
1677	depends on SGI_HAS_INDYDOG
1678	help
1679	  Hardware driver for the Indy's/I2's watchdog. This is a
1680	  watchdog timer that will reboot the machine after a 60 second
1681	  timer expired and no process has written to /dev/watchdog during
1682	  that time.
1683
1684config JZ4740_WDT
1685	tristate "Ingenic jz4740 SoC hardware watchdog"
1686	depends on MIPS
1687	depends on COMMON_CLK
1688	select WATCHDOG_CORE
1689	select MFD_SYSCON
1690	help
1691	  Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1692
1693config WDT_MTX1
1694	tristate "MTX-1 Hardware Watchdog"
1695	depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1696	help
1697	  Hardware driver for the MTX-1 boards. This is a watchdog timer that
1698	  will reboot the machine after a 100 seconds timer expired.
1699
1700config SIBYTE_WDOG
1701	tristate "Sibyte SoC hardware watchdog"
1702	depends on CPU_SB1
1703	help
1704	  Watchdog driver for the built in watchdog hardware in Sibyte
1705	  SoC processors.  There are apparently two watchdog timers
1706	  on such processors; this driver supports only the first one,
1707	  because currently Linux only supports exporting one watchdog
1708	  to userspace.
1709
1710	  To compile this driver as a loadable module, choose M here.
1711	  The module will be called sb_wdog.
1712
1713config AR7_WDT
1714	tristate "TI AR7 Watchdog Timer"
1715	depends on AR7 || (MIPS && 32BIT && COMPILE_TEST)
1716	help
1717	  Hardware driver for the TI AR7 Watchdog Timer.
1718
1719config TXX9_WDT
1720	tristate "Toshiba TXx9 Watchdog Timer"
1721	depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
1722	select WATCHDOG_CORE
1723	help
1724	  Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1725
1726config OCTEON_WDT
1727	tristate "Cavium OCTEON SOC family Watchdog Timer"
1728	depends on CAVIUM_OCTEON_SOC
1729	default y
1730	select WATCHDOG_CORE
1731	select EXPORT_UASM if OCTEON_WDT = m
1732	help
1733	  Hardware driver for OCTEON's on chip watchdog timer.
1734	  Enables the watchdog for all cores running Linux. It
1735	  installs a NMI handler and pokes the watchdog based on an
1736	  interrupt.  On first expiration of the watchdog, the
1737	  interrupt handler pokes it.  The second expiration causes an
1738	  NMI that prints a message. The third expiration causes a
1739	  global soft reset.
1740
1741	  When userspace has /dev/watchdog open, no poking is done
1742	  from the first interrupt, it is then only poked when the
1743	  device is written.
1744
1745config BCM2835_WDT
1746	tristate "Broadcom BCM2835 hardware watchdog"
1747	depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1748	select WATCHDOG_CORE
1749	help
1750	  Watchdog driver for the built in watchdog hardware in Broadcom
1751	  BCM2835 SoC.
1752
1753	  To compile this driver as a loadable module, choose M here.
1754	  The module will be called bcm2835_wdt.
1755
1756config BCM_KONA_WDT
1757	tristate "BCM Kona Watchdog"
1758	depends on ARCH_BCM_MOBILE || COMPILE_TEST
1759	select WATCHDOG_CORE
1760	help
1761	  Support for the watchdog timer on the following Broadcom BCM281xx
1762	  family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1763	  BCM28155 variants.
1764
1765	  Say 'Y' or 'M' here to enable the driver. The module will be called
1766	  bcm_kona_wdt.
1767
1768config BCM_KONA_WDT_DEBUG
1769	bool "DEBUGFS support for BCM Kona Watchdog"
1770	depends on BCM_KONA_WDT
1771	help
1772	  If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1773	  access to the driver's internal data structures as well as watchdog
1774	  timer hardware registres.
1775
1776	  If in doubt, say 'N'.
1777
1778config BCM7038_WDT
1779	tristate "BCM63xx/BCM7038 Watchdog"
1780	select WATCHDOG_CORE
1781	depends on HAS_IOMEM
1782	depends on ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || COMPILE_TEST
1783	help
1784	  Watchdog driver for the built-in hardware in Broadcom 7038 and
1785	  later SoCs used in set-top boxes.  BCM7038 was made public
1786	  during the 2004 CES, and since then, many Broadcom chips use this
1787	  watchdog block, including some cable modem chips and DSL (63xx)
1788	  chips.
1789
1790config IMGPDC_WDT
1791	tristate "Imagination Technologies PDC Watchdog Timer"
1792	depends on HAS_IOMEM
1793	depends on MIPS || COMPILE_TEST
1794	select WATCHDOG_CORE
1795	help
1796	  Driver for Imagination Technologies PowerDown Controller
1797	  Watchdog Timer.
1798
1799	  To compile this driver as a loadable module, choose M here.
1800	  The module will be called imgpdc_wdt.
1801
1802config LANTIQ_WDT
1803	tristate "Lantiq SoC watchdog"
1804	depends on LANTIQ
1805	select WATCHDOG_CORE
1806	help
1807	  Hardware driver for the Lantiq SoC Watchdog Timer.
1808
1809config LOONGSON1_WDT
1810	tristate "Loongson1 SoC hardware watchdog"
1811	depends on MACH_LOONGSON32
1812	select WATCHDOG_CORE
1813	help
1814	  Hardware driver for the Loongson1 SoC Watchdog Timer.
1815
1816config RALINK_WDT
1817	tristate "Ralink SoC watchdog"
1818	select WATCHDOG_CORE
1819	depends on RALINK
1820	help
1821	  Hardware driver for the Ralink SoC Watchdog Timer.
1822
1823config MT7621_WDT
1824	tristate "Mediatek SoC watchdog"
1825	select WATCHDOG_CORE
1826	depends on SOC_MT7620 || SOC_MT7621
1827	help
1828	  Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1829
1830config PIC32_WDT
1831	tristate "Microchip PIC32 hardware watchdog"
1832	select WATCHDOG_CORE
1833	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1834	help
1835	  Watchdog driver for the built in watchdog hardware in a PIC32.
1836
1837	  Configuration bits must be set appropriately for the watchdog to be
1838	  controlled by this driver.
1839
1840	  To compile this driver as a loadable module, choose M here.
1841	  The module will be called pic32-wdt.
1842
1843config PIC32_DMT
1844	tristate "Microchip PIC32 Deadman Timer"
1845	select WATCHDOG_CORE
1846	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1847	help
1848	  Watchdog driver for PIC32 instruction fetch counting timer. This
1849	  specific timer is typically be used in mission critical and safety
1850	  critical applications, where any single failure of the software
1851	  functionality and sequencing must be detected.
1852
1853	  To compile this driver as a loadable module, choose M here.
1854	  The module will be called pic32-dmt.
1855
1856# PARISC Architecture
1857
1858# POWERPC Architecture
1859
1860config GEF_WDT
1861	tristate "GE Watchdog Timer"
1862	depends on GE_FPGA
1863	help
1864	  Watchdog timer found in a number of GE single board computers.
1865
1866config MPC5200_WDT
1867	bool "MPC52xx Watchdog Timer"
1868	depends on PPC_MPC52xx || COMPILE_TEST
1869	help
1870	  Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1871
1872config 8xxx_WDT
1873	tristate "MPC8xxx Platform Watchdog Timer"
1874	depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1875	select WATCHDOG_CORE
1876	help
1877	  This driver is for a SoC level watchdog that exists on some
1878	  Freescale PowerPC processors. So far this driver supports:
1879	  - MPC8xx watchdogs
1880	  - MPC83xx watchdogs
1881	  - MPC86xx watchdogs
1882
1883	  For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1884
1885config PIKA_WDT
1886	tristate "PIKA FPGA Watchdog"
1887	depends on WARP || (PPC64 && COMPILE_TEST)
1888	default y
1889	help
1890	  This enables the watchdog in the PIKA FPGA. Currently used on
1891	  the Warp platform.
1892
1893config BOOKE_WDT
1894	tristate "PowerPC Book-E Watchdog Timer"
1895	depends on BOOKE || 4xx
1896	select WATCHDOG_CORE
1897	help
1898	  Watchdog driver for PowerPC Book-E chips, such as the Freescale
1899	  MPC85xx SOCs and the IBM PowerPC 440.
1900
1901	  Please see Documentation/watchdog/watchdog-api.rst for
1902	  more information.
1903
1904config BOOKE_WDT_DEFAULT_TIMEOUT
1905	int "PowerPC Book-E Watchdog Timer Default Timeout"
1906	depends on BOOKE_WDT
1907	default 38 if PPC_FSL_BOOK3E
1908	range 0 63 if PPC_FSL_BOOK3E
1909	default 3 if !PPC_FSL_BOOK3E
1910	range 0 3 if !PPC_FSL_BOOK3E
1911	help
1912	  Select the default watchdog timer period to be used by the PowerPC
1913	  Book-E watchdog driver.  A watchdog "event" occurs when the bit
1914	  position represented by this number transitions from zero to one.
1915
1916	  For Freescale Book-E processors, this is a number between 0 and 63.
1917	  For other Book-E processors, this is a number between 0 and 3.
1918
1919	  The value can be overridden by the wdt_period command-line parameter.
1920
1921config MEN_A21_WDT
1922	tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1923	select WATCHDOG_CORE
1924	depends on GPIOLIB || COMPILE_TEST
1925	help
1926	  Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1927
1928	  The driver can also be built as a module. If so, the module will be
1929	  called mena21_wdt.
1930
1931	  If unsure select N here.
1932
1933# PPC64 Architecture
1934
1935config WATCHDOG_RTAS
1936	tristate "RTAS watchdog"
1937	depends on PPC_RTAS
1938	help
1939	  This driver adds watchdog support for the RTAS watchdog.
1940
1941	  To compile this driver as a module, choose M here. The module
1942	  will be called wdrtas.
1943
1944# S390 Architecture
1945
1946config DIAG288_WATCHDOG
1947	tristate "System z diag288 Watchdog"
1948	depends on S390
1949	select WATCHDOG_CORE
1950	help
1951	  IBM s/390 and zSeries machines running under z/VM 5.1 or later
1952	  provide a virtual watchdog timer to their guest that cause a
1953	  user define Control Program command to be executed after a
1954	  timeout.
1955	  LPAR provides a very similar interface. This driver handles
1956	  both.
1957
1958	  To compile this driver as a module, choose M here. The module
1959	  will be called diag288_wdt.
1960
1961# SUPERH (sh + sh64) Architecture
1962
1963config SH_WDT
1964	tristate "SuperH Watchdog"
1965	depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1966	select WATCHDOG_CORE
1967	help
1968	  This driver adds watchdog support for the integrated watchdog in the
1969	  SuperH processors. If you have one of these processors and wish
1970	  to have watchdog support enabled, say Y, otherwise say N.
1971
1972	  As a side note, saying Y here will automatically boost HZ to 1000
1973	  so that the timer has a chance to clear the overflow counter. On
1974	  slower systems (such as the SH-2 and SH-3) this will likely yield
1975	  some performance issues. As such, the WDT should be avoided here
1976	  unless it is absolutely necessary.
1977
1978	  To compile this driver as a module, choose M here: the
1979	  module will be called shwdt.
1980
1981# SPARC Architecture
1982
1983# SPARC64 Architecture
1984
1985config WATCHDOG_CP1XXX
1986	tristate "CP1XXX Hardware Watchdog support"
1987	depends on SPARC64 && PCI
1988	help
1989	  This is the driver for the hardware watchdog timers present on
1990	  Sun Microsystems CompactPCI models CP1400 and CP1500.
1991
1992	  To compile this driver as a module, choose M here: the
1993	  module will be called cpwatchdog.
1994
1995	  If you do not have a CompactPCI model CP1400 or CP1500, or
1996	  another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1997	  you should say N to this option.
1998
1999config WATCHDOG_RIO
2000	tristate "RIO Hardware Watchdog support"
2001	depends on SPARC64 && PCI
2002	help
2003	  Say Y here to support the hardware watchdog capability on Sun RIO
2004	  machines.  The watchdog timeout period is normally one minute but
2005	  can be changed with a boot-time parameter.
2006
2007config WATCHDOG_SUN4V
2008	tristate "Sun4v Watchdog support"
2009	select WATCHDOG_CORE
2010	depends on SPARC64
2011	help
2012	  Say Y here to support the hypervisor watchdog capability embedded
2013	  in the SPARC sun4v architecture.
2014
2015	  To compile this driver as a module, choose M here. The module will
2016	  be called sun4v_wdt.
2017
2018# XTENSA Architecture
2019
2020# Xen Architecture
2021
2022config XEN_WDT
2023	tristate "Xen Watchdog support"
2024	depends on XEN
2025	select WATCHDOG_CORE
2026	help
2027	  Say Y here to support the hypervisor watchdog capability provided
2028	  by Xen 4.0 and newer.  The watchdog timeout period is normally one
2029	  minute but can be changed with a boot-time parameter.
2030
2031config UML_WATCHDOG
2032	tristate "UML watchdog"
2033	depends on UML || COMPILE_TEST
2034
2035#
2036# ISA-based Watchdog Cards
2037#
2038
2039comment "ISA-based Watchdog Cards"
2040	depends on ISA
2041
2042config PCWATCHDOG
2043	tristate "Berkshire Products ISA-PC Watchdog"
2044	depends on ISA
2045	help
2046	  This is the driver for the Berkshire Products ISA-PC Watchdog card.
2047	  This card simply watches your kernel to make sure it doesn't freeze,
2048	  and if it does, it reboots your computer after a certain amount of
2049	  time. This driver is like the WDT501 driver but for different
2050	  hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>.
2051	  The PC watchdog cards can be ordered from <http://www.berkprod.com/>.
2052
2053	  To compile this driver as a module, choose M here: the
2054	  module will be called pcwd.
2055
2056	  Most people will say N.
2057
2058config MIXCOMWD
2059	tristate "Mixcom Watchdog"
2060	depends on ISA
2061	help
2062	  This is a driver for the Mixcom hardware watchdog cards.  This
2063	  watchdog simply watches your kernel to make sure it doesn't freeze,
2064	  and if it does, it reboots your computer after a certain amount of
2065	  time.
2066
2067	  To compile this driver as a module, choose M here: the
2068	  module will be called mixcomwd.
2069
2070	  Most people will say N.
2071
2072config WDT
2073	tristate "WDT Watchdog timer"
2074	depends on ISA
2075	help
2076	  If you have a WDT500P or WDT501P watchdog board, say Y here,
2077	  otherwise N. It is not possible to probe for this board, which means
2078	  that you have to inform the kernel about the IO port and IRQ that
2079	  is needed (you can do this via the io and irq parameters)
2080
2081	  To compile this driver as a module, choose M here: the
2082	  module will be called wdt.
2083
2084#
2085# PCI-based Watchdog Cards
2086#
2087
2088comment "PCI-based Watchdog Cards"
2089	depends on PCI
2090
2091config PCIPCWATCHDOG
2092	tristate "Berkshire Products PCI-PC Watchdog"
2093	depends on PCI
2094	help
2095	  This is the driver for the Berkshire Products PCI-PC Watchdog card.
2096	  This card simply watches your kernel to make sure it doesn't freeze,
2097	  and if it does, it reboots your computer after a certain amount of
2098	  time. The card can also monitor the internal temperature of the PC.
2099	  More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2100
2101	  To compile this driver as a module, choose M here: the
2102	  module will be called pcwd_pci.
2103
2104	  Most people will say N.
2105
2106config WDTPCI
2107	tristate "PCI-WDT500/501 Watchdog timer"
2108	depends on PCI
2109	help
2110	  If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2111
2112	  If you have a PCI-WDT501 watchdog board then you can enable the
2113	  temperature sensor by setting the type parameter to 501.
2114
2115	  If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2116	  can do this via the tachometer parameter. Only do this if you have a
2117	  fan tachometer actually set up.
2118
2119	  To compile this driver as a module, choose M here: the
2120	  module will be called wdt_pci.
2121
2122#
2123# USB-based Watchdog Cards
2124#
2125
2126comment "USB-based Watchdog Cards"
2127	depends on USB
2128
2129config USBPCWATCHDOG
2130	tristate "Berkshire Products USB-PC Watchdog"
2131	depends on USB
2132	help
2133	  This is the driver for the Berkshire Products USB-PC Watchdog card.
2134	  This card simply watches your kernel to make sure it doesn't freeze,
2135	  and if it does, it reboots your computer after a certain amount of
2136	  time. The card can also monitor the internal temperature of the PC.
2137	  More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2138
2139	  To compile this driver as a module, choose M here: the
2140	  module will be called pcwd_usb.
2141
2142	  Most people will say N.
2143
2144config KEEMBAY_WATCHDOG
2145	tristate "Intel Keem Bay SoC non-secure watchdog"
2146	depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST)
2147	select WATCHDOG_CORE
2148	help
2149	  This option enable support for an In-secure watchdog timer driver for
2150	  Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every
2151	  count unit. An interrupt will be triggered, when the count crosses
2152	  the threshold configured in the register.
2153
2154	  To compile this driver as a module, choose M here: the
2155	  module will be called keembay_wdt.
2156
2157endif # WATCHDOG
2158