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 || MFD_MAX77714 || 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_RZN1WDT
887	tristate "Renesas RZ/N1 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/N1 SoCs. These watchdogs can be used to reset a system.
893
894config RENESAS_RZG2LWDT
895	tristate "Renesas RZ/G2L WDT Watchdog"
896	depends on ARCH_RENESAS || COMPILE_TEST
897	select WATCHDOG_CORE
898	help
899	  This driver adds watchdog support for the integrated watchdogs in the
900	  Renesas RZ/G2L SoCs. These watchdogs can be used to reset a system.
901
902config ASPEED_WATCHDOG
903	tristate "Aspeed BMC watchdog support"
904	depends on ARCH_ASPEED || COMPILE_TEST
905	select WATCHDOG_CORE
906	help
907	  Say Y here to include support for the watchdog timer
908	  in Aspeed BMC SoCs.
909
910	  This driver is required to reboot the SoC.
911
912	  To compile this driver as a module, choose M here: the
913	  module will be called aspeed_wdt.
914
915config STM32_WATCHDOG
916	tristate "STM32 Independent WatchDoG (IWDG) support"
917	depends on ARCH_STM32
918	select WATCHDOG_CORE
919	default y
920	help
921	  Say Y here to include support for the watchdog timer
922	  in stm32 SoCs.
923
924	  To compile this driver as a module, choose M here: the
925	  module will be called stm32_iwdg.
926
927config STPMIC1_WATCHDOG
928	tristate "STPMIC1 PMIC watchdog support"
929	depends on MFD_STPMIC1
930	select WATCHDOG_CORE
931	help
932	  Say Y here to include watchdog support embedded into STPMIC1 PMIC.
933	  If the watchdog timer expires, stpmic1 will shut down all its power
934	  supplies.
935
936	  To compile this driver as a module, choose M here: the
937	  module will be called spmic1_wdt.
938
939config UNIPHIER_WATCHDOG
940	tristate "UniPhier watchdog support"
941	depends on ARCH_UNIPHIER || COMPILE_TEST
942	depends on OF && MFD_SYSCON
943	select WATCHDOG_CORE
944	help
945	  Say Y here to include support watchdog timer embedded
946	  into the UniPhier system.
947
948	  To compile this driver as a module, choose M here: the
949	  module will be called uniphier_wdt.
950
951config RTD119X_WATCHDOG
952	bool "Realtek RTD119x/RTD129x watchdog support"
953	depends on ARCH_REALTEK || COMPILE_TEST
954	depends on OF
955	select WATCHDOG_CORE
956	default ARCH_REALTEK
957	help
958	  Say Y here to include support for the watchdog timer in
959	  Realtek RTD1295 SoCs.
960
961config REALTEK_OTTO_WDT
962	tristate "Realtek Otto MIPS watchdog support"
963	depends on MACH_REALTEK_RTL || COMPILE_TEST
964	depends on COMMON_CLK
965	select WATCHDOG_CORE
966	default MACH_REALTEK_RTL
967	help
968	  Say Y here to include support for the watchdog timer on Realtek
969	  RTL838x, RTL839x, RTL930x SoCs. This watchdog has pretimeout
970	  notifications and system reset on timeout.
971
972	  When built as a module this will be called realtek_otto_wdt.
973
974config SPRD_WATCHDOG
975	tristate "Spreadtrum watchdog support"
976	depends on ARCH_SPRD || COMPILE_TEST
977	select WATCHDOG_CORE
978	help
979	  Say Y here to include watchdog timer supported
980	  by Spreadtrum system.
981
982config PM8916_WATCHDOG
983	tristate "QCOM PM8916 pmic watchdog"
984	depends on OF && MFD_SPMI_PMIC
985	select WATCHDOG_CORE
986	help
987	  Say Y here to include support watchdog timer embedded into the
988	  pm8916 module.
989
990config VISCONTI_WATCHDOG
991	tristate "Toshiba Visconti series watchdog support"
992	depends on ARCH_VISCONTI || COMPILE_TEST
993	select WATCHDOG_CORE
994	help
995	  Say Y here to include support for the watchdog timer in Toshiba
996	  Visconti SoCs.
997
998config MSC313E_WATCHDOG
999	tristate "MStar MSC313e watchdog"
1000	depends on ARCH_MSTARV7 || COMPILE_TEST
1001	select WATCHDOG_CORE
1002	help
1003	  Say Y here to include support for the Watchdog timer embedded
1004	  into MStar MSC313e chips. This will reboot your system when the
1005	  timeout is reached.
1006
1007	  To compile this driver as a module, choose M here: the
1008	  module will be called msc313e_wdt.
1009
1010config APPLE_WATCHDOG
1011	tristate "Apple SoC watchdog"
1012	depends on ARCH_APPLE || COMPILE_TEST
1013	select WATCHDOG_CORE
1014	help
1015	  Say Y here to include support for the Watchdog found in Apple
1016	  SoCs such as the M1. Next to the common watchdog features this
1017	  driver is also required in order to reboot these SoCs.
1018
1019	  To compile this driver as a module, choose M here: the
1020	  module will be called apple_wdt.
1021
1022config SUNPLUS_WATCHDOG
1023	tristate "Sunplus watchdog support"
1024	depends on ARCH_SUNPLUS || COMPILE_TEST
1025	select WATCHDOG_CORE
1026	help
1027	  Say Y here to include support for the watchdog timer
1028	  in Sunplus SoCs.
1029
1030	  To compile this driver as a module, choose M here: the
1031	  module will be called sunplus_wdt.
1032
1033# X86 (i386 + ia64 + x86_64) Architecture
1034
1035config ACQUIRE_WDT
1036	tristate "Acquire SBC Watchdog Timer"
1037	depends on X86
1038	help
1039	  This is the driver for the hardware watchdog on Single Board
1040	  Computers produced by Acquire Inc (and others). This watchdog
1041	  simply watches your kernel to make sure it doesn't freeze, and if
1042	  it does, it reboots your computer after a certain amount of time.
1043
1044	  To compile this driver as a module, choose M here: the
1045	  module will be called acquirewdt.
1046
1047	  Most people will say N.
1048
1049config ADVANTECH_WDT
1050	tristate "Advantech SBC Watchdog Timer"
1051	depends on X86
1052	help
1053	  If you are configuring a Linux kernel for the Advantech single-board
1054	  computer, say `Y' here to support its built-in watchdog timer
1055	  feature. More information can be found at
1056	  <https://www.advantech.com.tw/products/>
1057
1058config ALIM1535_WDT
1059	tristate "ALi M1535 PMU Watchdog Timer"
1060	depends on X86 && PCI
1061	help
1062	  This is the driver for the hardware watchdog on the ALi M1535 PMU.
1063
1064	  To compile this driver as a module, choose M here: the
1065	  module will be called alim1535_wdt.
1066
1067	  Most people will say N.
1068
1069config ALIM7101_WDT
1070	tristate "ALi M7101 PMU Computer Watchdog"
1071	depends on PCI
1072	help
1073	  This is the driver for the hardware watchdog on the ALi M7101 PMU
1074	  as used in the x86 Cobalt servers and also found in some
1075	  SPARC Netra servers too.
1076
1077	  To compile this driver as a module, choose M here: the
1078	  module will be called alim7101_wdt.
1079
1080	  Most people will say N.
1081
1082config EBC_C384_WDT
1083	tristate "WinSystems EBC-C384 Watchdog Timer"
1084	depends on X86
1085	select ISA_BUS_API
1086	select WATCHDOG_CORE
1087	help
1088	  Enables watchdog timer support for the watchdog timer on the
1089	  WinSystems EBC-C384 motherboard. The timeout may be configured via
1090	  the timeout module parameter.
1091
1092config F71808E_WDT
1093	tristate "Fintek F718xx, F818xx Super I/O Watchdog"
1094	depends on X86
1095	select WATCHDOG_CORE
1096	help
1097	  This is the driver for the hardware watchdog on the Fintek F71808E,
1098	  F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and
1099	  F81866 Super I/O controllers.
1100
1101	  You can compile this driver directly into the kernel, or use
1102	  it as a module.  The module will be called f71808e_wdt.
1103
1104config SP5100_TCO
1105	tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
1106	depends on X86 && PCI
1107	select WATCHDOG_CORE
1108	help
1109	  Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
1110	  (Total Cost of Ownership) timer is a watchdog timer that will reboot
1111	  the machine after its expiration. The expiration time can be
1112	  configured with the "heartbeat" parameter.
1113
1114	  To compile this driver as a module, choose M here: the
1115	  module will be called sp5100_tco.
1116
1117config GEODE_WDT
1118	tristate "AMD Geode CS5535/CS5536 Watchdog"
1119	depends on CS5535_MFGPT
1120	help
1121	  This driver enables a watchdog capability built into the
1122	  CS5535/CS5536 companion chips for the AMD Geode GX and LX
1123	  processors.  This watchdog watches your kernel to make sure
1124	  it doesn't freeze, and if it does, it reboots your computer after
1125	  a certain amount of time.
1126
1127	  You can compile this driver directly into the kernel, or use
1128	  it as a module.  The module will be called geodewdt.
1129
1130config SC520_WDT
1131	tristate "AMD Elan SC520 processor Watchdog"
1132	depends on MELAN || COMPILE_TEST
1133	help
1134	  This is the driver for the hardware watchdog built in to the
1135	  AMD "Elan" SC520 microcomputer commonly used in embedded systems.
1136	  This watchdog simply watches your kernel to make sure it doesn't
1137	  freeze, and if it does, it reboots your computer after a certain
1138	  amount of time.
1139
1140	  You can compile this driver directly into the kernel, or use
1141	  it as a module.  The module will be called sc520_wdt.
1142
1143config SBC_FITPC2_WATCHDOG
1144	tristate "Compulab SBC-FITPC2 watchdog"
1145	depends on X86
1146	help
1147	  This is the driver for the built-in watchdog timer on the fit-PC2,
1148	  fit-PC2i, CM-iAM single-board computers made by Compulab.
1149
1150	  It's possible to enable the watchdog timer either from BIOS (F2) or
1151	  from booted Linux.
1152	  When the "Watchdog Timer Value" is enabled one can set 31-255 seconds
1153	  operational range.
1154
1155	  Entering BIOS setup temporarily disables watchdog operation regardless
1156	  of current state, so system will not be restarted while user is in
1157	  BIOS setup.
1158
1159	  Once the watchdog is enabled the system will be restarted every
1160	  "Watchdog Timer Value" period, so to prevent it user can restart or
1161	  disable the watchdog.
1162
1163	  To compile this driver as a module, choose M here: the
1164	  module will be called sbc_fitpc2_wdt.
1165
1166	  Most people will say N.
1167
1168config EUROTECH_WDT
1169	tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1170	depends on X86
1171	help
1172	  Enable support for the watchdog timer on the Eurotech CPU-1220 and
1173	  CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
1174	  information are at <http://www.eurotech.it/>.
1175
1176config IB700_WDT
1177	tristate "IB700 SBC Watchdog Timer"
1178	depends on X86
1179	help
1180	  This is the driver for the hardware watchdog on the IB700 Single
1181	  Board Computer produced by TMC Technology (www.tmc-uk.com). This
1182	  watchdog simply watches your kernel to make sure it doesn't freeze,
1183	  and if it does, it reboots your computer after a certain amount of time.
1184
1185	  This driver is like the WDT501 driver but for slightly different
1186	  hardware.
1187
1188	  To compile this driver as a module, choose M here: the
1189	  module will be called ib700wdt.
1190
1191	  Most people will say N.
1192
1193config IBMASR
1194	tristate "IBM Automatic Server Restart"
1195	depends on X86
1196	help
1197	  This is the driver for the IBM Automatic Server Restart watchdog
1198	  timer built-in into some eServer xSeries machines.
1199
1200	  To compile this driver as a module, choose M here: the
1201	  module will be called ibmasr.
1202
1203config WAFER_WDT
1204	tristate "ICP Single Board Computer Watchdog Timer"
1205	depends on X86
1206	help
1207	  This is a driver for the hardware watchdog on the ICP Single
1208	  Board Computer. This driver is working on (at least) the following
1209	  IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1210
1211	  To compile this driver as a module, choose M here: the
1212	  module will be called wafer5823wdt.
1213
1214config I6300ESB_WDT
1215	tristate "Intel 6300ESB Timer/Watchdog"
1216	depends on PCI
1217	select WATCHDOG_CORE
1218	help
1219	  Hardware driver for the watchdog timer built into the Intel
1220	  6300ESB controller hub.
1221
1222	  To compile this driver as a module, choose M here: the
1223	  module will be called i6300esb.
1224
1225config IE6XX_WDT
1226	tristate "Intel Atom E6xx Watchdog"
1227	depends on X86 && PCI
1228	select WATCHDOG_CORE
1229	select MFD_CORE
1230	select LPC_SCH
1231	help
1232	  Hardware driver for the watchdog timer built into the Intel
1233	  Atom E6XX (TunnelCreek) processor.
1234
1235	  To compile this driver as a module, choose M here: the
1236	  module will be called ie6xx_wdt.
1237
1238config INTEL_MID_WATCHDOG
1239	tristate "Intel MID Watchdog Timer"
1240	depends on X86_INTEL_MID
1241	select WATCHDOG_CORE
1242	help
1243	  Watchdog timer driver built into the Intel SCU for Intel MID
1244	  Platforms.
1245
1246	  This driver currently supports only the watchdog evolution
1247	  implementation in SCU, available for Merrifield generation.
1248
1249	  To compile this driver as a module, choose M here.
1250
1251config ITCO_WDT
1252	tristate "Intel TCO Timer/Watchdog"
1253	depends on (X86 || IA64) && PCI
1254	select WATCHDOG_CORE
1255	depends on I2C || I2C=n
1256	depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT
1257	select LPC_ICH if !EXPERT
1258	select I2C_I801 if !EXPERT && I2C
1259	help
1260	  Hardware driver for the intel TCO timer based watchdog devices.
1261	  These drivers are included in the Intel 82801 I/O Controller
1262	  Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1263	  controller hub.
1264
1265	  The TCO (Total Cost of Ownership) timer is a watchdog timer
1266	  that will reboot the machine after its second expiration. The
1267	  expiration time can be configured with the "heartbeat" parameter.
1268
1269	  On some motherboards the driver may fail to reset the chipset's
1270	  NO_REBOOT flag which prevents the watchdog from rebooting the
1271	  machine. If this is the case you will get a kernel message like
1272	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1273
1274	  To compile this driver as a module, choose M here: the
1275	  module will be called iTCO_wdt.
1276
1277config ITCO_VENDOR_SUPPORT
1278	bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1279	depends on ITCO_WDT
1280	help
1281	  Add vendor specific support to the intel TCO timer based watchdog
1282	  devices. At this moment we only have additional support for some
1283	  SuperMicro Inc. motherboards.
1284
1285config IT8712F_WDT
1286	tristate "IT8712F (Smart Guardian) Watchdog Timer"
1287	depends on X86
1288	help
1289	  This is the driver for the built-in watchdog timer on the IT8712F
1290	  Super I/0 chipset used on many motherboards.
1291
1292	  If the driver does not work, then make sure that the game port in
1293	  the BIOS is enabled.
1294
1295	  To compile this driver as a module, choose M here: the
1296	  module will be called it8712f_wdt.
1297
1298config IT87_WDT
1299	tristate "IT87 Watchdog Timer"
1300	depends on X86
1301	select WATCHDOG_CORE
1302	help
1303	  This is the driver for the hardware watchdog on the ITE IT8607,
1304	  IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1305	  IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1306	  IT8783 Super I/O chips.
1307
1308	  This watchdog simply watches your kernel to make sure it doesn't
1309	  freeze, and if it does, it reboots your computer after a certain
1310	  amount of time.
1311
1312	  To compile this driver as a module, choose M here: the module will
1313	  be called it87_wdt.
1314
1315config HP_WATCHDOG
1316	tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1317	select WATCHDOG_CORE
1318	depends on X86 && PCI
1319	help
1320	  A software monitoring watchdog and NMI handling driver. This driver
1321	  will detect lockups and provide a stack trace. This is a driver that
1322	  will only load on an HP ProLiant system with a minimum of iLO2 support.
1323	  To compile this driver as a module, choose M here: the module will be
1324	  called hpwdt.
1325
1326config HPWDT_NMI_DECODING
1327	bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1328	depends on HP_WATCHDOG
1329	default y
1330	help
1331	  Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1332	  "Generate NMI to System" virtual button.  When an NMI is claimed
1333	  by the driver, panic is called.
1334
1335config KEMPLD_WDT
1336	tristate "Kontron COM Watchdog Timer"
1337	depends on MFD_KEMPLD
1338	select WATCHDOG_CORE
1339	help
1340	  Support for the PLD watchdog on some Kontron ETX and COMexpress
1341	  (ETXexpress) modules
1342
1343	  This driver can also be built as a module. If so, the module will be
1344	  called kempld_wdt.
1345
1346config SC1200_WDT
1347	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1348	depends on X86
1349	help
1350	  This is a driver for National Semiconductor PC87307/PC97307 hardware
1351	  watchdog cards as found on the SC1200. This watchdog is mainly used
1352	  for power management purposes and can be used to power down the device
1353	  during inactivity periods (includes interrupt activity monitoring).
1354
1355	  To compile this driver as a module, choose M here: the
1356	  module will be called sc1200wdt.
1357
1358	  Most people will say N.
1359
1360config SCx200_WDT
1361	tristate "National Semiconductor SCx200 Watchdog"
1362	depends on SCx200 && PCI
1363	help
1364	  Enable the built-in watchdog timer support on the National
1365	  Semiconductor SCx200 processors.
1366
1367	  If compiled as a module, it will be called scx200_wdt.
1368
1369config PC87413_WDT
1370	tristate "NS PC87413 watchdog"
1371	depends on X86
1372	help
1373	  This is the driver for the hardware watchdog on the PC87413 chipset
1374	  This watchdog simply watches your kernel to make sure it doesn't
1375	  freeze, and if it does, it reboots your computer after a certain
1376	  amount of time.
1377
1378	  To compile this driver as a module, choose M here: the
1379	  module will be called pc87413_wdt.
1380
1381	  Most people will say N.
1382
1383config NV_TCO
1384	tristate "nVidia TCO Timer/Watchdog"
1385	depends on X86 && PCI
1386	help
1387	  Hardware driver for the TCO timer built into the nVidia Hub family
1388	  (such as the MCP51).  The TCO (Total Cost of Ownership) timer is a
1389	  watchdog timer that will reboot the machine after its second
1390	  expiration. The expiration time can be configured with the
1391	  "heartbeat" parameter.
1392
1393	  On some motherboards the driver may fail to reset the chipset's
1394	  NO_REBOOT flag which prevents the watchdog from rebooting the
1395	  machine. If this is the case you will get a kernel message like
1396	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1397
1398	  To compile this driver as a module, choose M here: the
1399	  module will be called nv_tco.
1400
1401config RDC321X_WDT
1402	tristate "RDC R-321x SoC watchdog"
1403	depends on X86_RDC321X || COMPILE_TEST
1404	depends on PCI
1405	help
1406	  This is the driver for the built in hardware watchdog
1407	  in the RDC R-321x SoC.
1408
1409	  To compile this driver as a module, choose M here: the
1410	  module will be called rdc321x_wdt.
1411
1412config 60XX_WDT
1413	tristate "SBC-60XX Watchdog Timer"
1414	depends on X86
1415	help
1416	  This driver can be used with the watchdog timer found on some
1417	  single board computers, namely the 6010 PII based computer.
1418	  It may well work with other cards.  It reads port 0x443 to enable
1419	  and re-set the watchdog timer, and reads port 0x45 to disable
1420	  the watchdog.  If you have a card that behave in similar ways,
1421	  you can probably make this driver work with your card as well.
1422
1423	  You can compile this driver directly into the kernel, or use
1424	  it as a module.  The module will be called sbc60xxwdt.
1425
1426config SBC8360_WDT
1427	tristate "SBC8360 Watchdog Timer"
1428	depends on X86_32
1429	help
1430
1431	  This is the driver for the hardware watchdog on the SBC8360 Single
1432	  Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1433
1434	  To compile this driver as a module, choose M here: the
1435	  module will be called sbc8360.
1436
1437	  Most people will say N.
1438
1439config SBC7240_WDT
1440	tristate "SBC Nano 7240 Watchdog Timer"
1441	depends on X86_32 && !UML
1442	help
1443	  This is the driver for the hardware watchdog found on the IEI
1444	  single board computers EPIC Nano 7240 (and likely others). This
1445	  watchdog simply watches your kernel to make sure it doesn't freeze,
1446	  and if it does, it reboots your computer after a certain amount of
1447	  time.
1448
1449	  To compile this driver as a module, choose M here: the
1450	  module will be called sbc7240_wdt.
1451
1452config CPU5_WDT
1453	tristate "SMA CPU5 Watchdog"
1454	depends on X86
1455	help
1456	  TBD.
1457	  To compile this driver as a module, choose M here: the
1458	  module will be called cpu5wdt.
1459
1460config SMSC_SCH311X_WDT
1461	tristate "SMSC SCH311X Watchdog Timer"
1462	depends on X86
1463	help
1464	  This is the driver for the hardware watchdog timer on the
1465	  SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1466	  (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1467	  serial ports).
1468
1469	  To compile this driver as a module, choose M here: the
1470	  module will be called sch311x_wdt.
1471
1472config SMSC37B787_WDT
1473	tristate "Winbond SMsC37B787 Watchdog Timer"
1474	depends on X86
1475	help
1476	  This is the driver for the hardware watchdog component on the
1477	  Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1478	  from Vision Systems and maybe others.
1479
1480	  This watchdog simply watches your kernel to make sure it doesn't
1481	  freeze, and if it does, it reboots your computer after a certain
1482	  amount of time.
1483
1484	  Usually a userspace daemon will notify the kernel WDT driver that
1485	  userspace is still alive, at regular intervals.
1486
1487	  To compile this driver as a module, choose M here: the
1488	  module will be called smsc37b787_wdt.
1489
1490	  Most people will say N.
1491
1492config TQMX86_WDT
1493	tristate "TQ-Systems TQMX86 Watchdog Timer"
1494	depends on X86
1495	select WATCHDOG_CORE
1496	help
1497	  This is the driver for the hardware watchdog timer in the TQMX86 IO
1498	  controller found on some of their ComExpress Modules.
1499
1500	  To compile this driver as a module, choose M here; the module
1501	  will be called tqmx86_wdt.
1502
1503	  Most people will say N.
1504
1505config VIA_WDT
1506	tristate "VIA Watchdog Timer"
1507	depends on X86 && PCI
1508	select WATCHDOG_CORE
1509	help
1510	  This is the driver for the hardware watchdog timer on VIA
1511	  southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1512
1513	  To compile this driver as a module, choose M here; the module
1514	  will be called via_wdt.
1515
1516	  Most people will say N.
1517
1518config W83627HF_WDT
1519	tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1520	depends on X86
1521	select WATCHDOG_CORE
1522	help
1523	  This is the driver for the hardware watchdog on the following
1524	  Super I/O chips.
1525		W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1526		W83637HF
1527		W83667HG/HG-B
1528		W83687THF
1529		W83697HF
1530		W83697UG
1531		NCT6775
1532		NCT6776
1533		NCT6779
1534		NCT6791
1535		NCT6792
1536		NCT6102D/04D/06D
1537		NCT6116D
1538
1539	  This watchdog simply watches your kernel to make sure it doesn't
1540	  freeze, and if it does, it reboots your computer after a certain
1541	  amount of time.
1542
1543	  To compile this driver as a module, choose M here: the
1544	  module will be called w83627hf_wdt.
1545
1546	  Most people will say N.
1547
1548config W83877F_WDT
1549	tristate "W83877F (EMACS) Watchdog Timer"
1550	depends on X86
1551	help
1552	  This is the driver for the hardware watchdog on the W83877F chipset
1553	  as used in EMACS PC-104 motherboards (and likely others).  This
1554	  watchdog simply watches your kernel to make sure it doesn't freeze,
1555	  and if it does, it reboots your computer after a certain amount of
1556	  time.
1557
1558	  To compile this driver as a module, choose M here: the
1559	  module will be called w83877f_wdt.
1560
1561	  Most people will say N.
1562
1563config W83977F_WDT
1564	tristate "W83977F (PCM-5335) Watchdog Timer"
1565	depends on X86
1566	help
1567	  This is the driver for the hardware watchdog on the W83977F I/O chip
1568	  as used in AAEON's PCM-5335 SBC (and likely others).  This
1569	  watchdog simply watches your kernel to make sure it doesn't freeze,
1570	  and if it does, it reboots your computer after a certain amount of
1571	  time.
1572
1573	  To compile this driver as a module, choose M here: the
1574	  module will be called w83977f_wdt.
1575
1576config MACHZ_WDT
1577	tristate "ZF MachZ Watchdog"
1578	depends on X86
1579	help
1580	  If you are using a ZF Micro MachZ processor, say Y here, otherwise
1581	  N.  This is the driver for the watchdog timer built-in on that
1582	  processor using ZF-Logic interface.  This watchdog simply watches
1583	  your kernel to make sure it doesn't freeze, and if it does, it
1584	  reboots your computer after a certain amount of time.
1585
1586	  To compile this driver as a module, choose M here: the
1587	  module will be called machzwd.
1588
1589config SBC_EPX_C3_WATCHDOG
1590	tristate "Winsystems SBC EPX-C3 watchdog"
1591	depends on X86
1592	help
1593	  This is the driver for the built-in watchdog timer on the EPX-C3
1594	  Single-board computer made by Winsystems, Inc.
1595
1596	  *Note*: This hardware watchdog is not probeable and thus there
1597	  is no way to know if writing to its IO address will corrupt
1598	  your system or have any real effect.  The only way to be sure
1599	  that this driver does what you want is to make sure you
1600	  are running it on an EPX-C3 from Winsystems with the watchdog
1601	  timer at IO address 0x1ee and 0x1ef.  It will write to both those
1602	  IO ports.  Basically, the assumption is made that if you compile
1603	  this driver into your kernel and/or load it as a module, that you
1604	  know what you are doing and that you are in fact running on an
1605	  EPX-C3 board!
1606
1607	  To compile this driver as a module, choose M here: the
1608	  module will be called sbc_epx_c3.
1609
1610config INTEL_MEI_WDT
1611	tristate "Intel MEI iAMT Watchdog"
1612	depends on INTEL_MEI && X86
1613	select WATCHDOG_CORE
1614	help
1615	  A device driver for the Intel MEI iAMT watchdog.
1616
1617	  The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1618	  Whenever the OS hangs or crashes, iAMT will send an event
1619	  to any subscriber to this event. The watchdog doesn't reset the
1620	  the platform.
1621
1622	  To compile this driver as a module, choose M here:
1623	  the module will be called mei_wdt.
1624
1625config NI903X_WDT
1626	tristate "NI 903x/913x Watchdog"
1627	depends on X86 && ACPI
1628	select WATCHDOG_CORE
1629	help
1630	  This is the driver for the watchdog timer on the National Instruments
1631	  903x/913x real-time controllers.
1632
1633	  To compile this driver as a module, choose M here: the module will be
1634	  called ni903x_wdt.
1635
1636config NIC7018_WDT
1637	tristate "NIC7018 Watchdog"
1638	depends on X86 && ACPI
1639	select WATCHDOG_CORE
1640	help
1641	  Support for National Instruments NIC7018 Watchdog.
1642
1643	  To compile this driver as a module, choose M here: the module will be
1644	  called nic7018_wdt.
1645
1646config SIEMENS_SIMATIC_IPC_WDT
1647	tristate "Siemens Simatic IPC Watchdog"
1648	depends on SIEMENS_SIMATIC_IPC
1649	select WATCHDOG_CORE
1650	help
1651	  This driver adds support for several watchdogs found in Industrial
1652	  PCs from Siemens.
1653
1654	  To compile this driver as a module, choose M here: the module will be
1655	  called simatic-ipc-wdt.
1656
1657# M68K Architecture
1658
1659config M54xx_WATCHDOG
1660	tristate "MCF54xx watchdog support"
1661	depends on M548x
1662	help
1663	  To compile this driver as a module, choose M here: the
1664	  module will be called m54xx_wdt.
1665
1666# MicroBlaze Architecture
1667
1668# MIPS Architecture
1669
1670config ATH79_WDT
1671	tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1672	depends on ATH79 || (ARM && COMPILE_TEST)
1673	help
1674	  Hardware driver for the built-in watchdog timer on the Atheros
1675	  AR71XX/AR724X/AR913X SoCs.
1676
1677config BCM47XX_WDT
1678	tristate "Broadcom BCM47xx Watchdog Timer"
1679	depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1680	select WATCHDOG_CORE
1681	help
1682	  Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1683
1684config RC32434_WDT
1685	tristate "IDT RC32434 SoC Watchdog Timer"
1686	depends on MIKROTIK_RB532
1687	help
1688	  Hardware driver for the IDT RC32434 SoC built-in
1689	  watchdog timer.
1690
1691	  To compile this driver as a module, choose M here: the
1692	  module will be called rc32434_wdt.
1693
1694config INDYDOG
1695	tristate "Indy/I2 Hardware Watchdog"
1696	depends on SGI_HAS_INDYDOG
1697	help
1698	  Hardware driver for the Indy's/I2's watchdog. This is a
1699	  watchdog timer that will reboot the machine after a 60 second
1700	  timer expired and no process has written to /dev/watchdog during
1701	  that time.
1702
1703config JZ4740_WDT
1704	tristate "Ingenic jz4740 SoC hardware watchdog"
1705	depends on MIPS
1706	depends on COMMON_CLK
1707	select WATCHDOG_CORE
1708	select MFD_SYSCON
1709	help
1710	  Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1711
1712config WDT_MTX1
1713	tristate "MTX-1 Hardware Watchdog"
1714	depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1715	help
1716	  Hardware driver for the MTX-1 boards. This is a watchdog timer that
1717	  will reboot the machine after a 100 seconds timer expired.
1718
1719config SIBYTE_WDOG
1720	tristate "Sibyte SoC hardware watchdog"
1721	depends on CPU_SB1
1722	help
1723	  Watchdog driver for the built in watchdog hardware in Sibyte
1724	  SoC processors.  There are apparently two watchdog timers
1725	  on such processors; this driver supports only the first one,
1726	  because currently Linux only supports exporting one watchdog
1727	  to userspace.
1728
1729	  To compile this driver as a loadable module, choose M here.
1730	  The module will be called sb_wdog.
1731
1732config AR7_WDT
1733	tristate "TI AR7 Watchdog Timer"
1734	depends on AR7 || (MIPS && 32BIT && COMPILE_TEST)
1735	help
1736	  Hardware driver for the TI AR7 Watchdog Timer.
1737
1738config TXX9_WDT
1739	tristate "Toshiba TXx9 Watchdog Timer"
1740	depends on CPU_TX49XX || (MIPS && COMPILE_TEST)
1741	select WATCHDOG_CORE
1742	help
1743	  Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1744
1745config OCTEON_WDT
1746	tristate "Cavium OCTEON SOC family Watchdog Timer"
1747	depends on CAVIUM_OCTEON_SOC
1748	default y
1749	select WATCHDOG_CORE
1750	select EXPORT_UASM if OCTEON_WDT = m
1751	help
1752	  Hardware driver for OCTEON's on chip watchdog timer.
1753	  Enables the watchdog for all cores running Linux. It
1754	  installs a NMI handler and pokes the watchdog based on an
1755	  interrupt.  On first expiration of the watchdog, the
1756	  interrupt handler pokes it.  The second expiration causes an
1757	  NMI that prints a message. The third expiration causes a
1758	  global soft reset.
1759
1760	  When userspace has /dev/watchdog open, no poking is done
1761	  from the first interrupt, it is then only poked when the
1762	  device is written.
1763
1764config BCM2835_WDT
1765	tristate "Broadcom BCM2835 hardware watchdog"
1766	depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1767	select WATCHDOG_CORE
1768	help
1769	  Watchdog driver for the built in watchdog hardware in Broadcom
1770	  BCM2835 SoC.
1771
1772	  To compile this driver as a loadable module, choose M here.
1773	  The module will be called bcm2835_wdt.
1774
1775config BCM_KONA_WDT
1776	tristate "BCM Kona Watchdog"
1777	depends on ARCH_BCM_MOBILE || COMPILE_TEST
1778	select WATCHDOG_CORE
1779	help
1780	  Support for the watchdog timer on the following Broadcom BCM281xx
1781	  family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1782	  BCM28155 variants.
1783
1784	  Say 'Y' or 'M' here to enable the driver. The module will be called
1785	  bcm_kona_wdt.
1786
1787config BCM_KONA_WDT_DEBUG
1788	bool "DEBUGFS support for BCM Kona Watchdog"
1789	depends on BCM_KONA_WDT
1790	help
1791	  If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1792	  access to the driver's internal data structures as well as watchdog
1793	  timer hardware registres.
1794
1795	  If in doubt, say 'N'.
1796
1797config BCM7038_WDT
1798	tristate "BCM63xx/BCM7038 Watchdog"
1799	select WATCHDOG_CORE
1800	depends on HAS_IOMEM
1801	depends on ARCH_BCM4908 || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || COMPILE_TEST
1802	help
1803	  Watchdog driver for the built-in hardware in Broadcom 7038 and
1804	  later SoCs used in set-top boxes.  BCM7038 was made public
1805	  during the 2004 CES, and since then, many Broadcom chips use this
1806	  watchdog block, including some cable modem chips and DSL (63xx)
1807	  chips.
1808
1809config IMGPDC_WDT
1810	tristate "Imagination Technologies PDC Watchdog Timer"
1811	depends on HAS_IOMEM
1812	depends on MIPS || COMPILE_TEST
1813	select WATCHDOG_CORE
1814	help
1815	  Driver for Imagination Technologies PowerDown Controller
1816	  Watchdog Timer.
1817
1818	  To compile this driver as a loadable module, choose M here.
1819	  The module will be called imgpdc_wdt.
1820
1821config LANTIQ_WDT
1822	tristate "Lantiq SoC watchdog"
1823	depends on LANTIQ
1824	select WATCHDOG_CORE
1825	help
1826	  Hardware driver for the Lantiq SoC Watchdog Timer.
1827
1828config LOONGSON1_WDT
1829	tristate "Loongson1 SoC hardware watchdog"
1830	depends on MACH_LOONGSON32
1831	select WATCHDOG_CORE
1832	help
1833	  Hardware driver for the Loongson1 SoC Watchdog Timer.
1834
1835config RALINK_WDT
1836	tristate "Ralink SoC watchdog"
1837	select WATCHDOG_CORE
1838	depends on RALINK
1839	help
1840	  Hardware driver for the Ralink SoC Watchdog Timer.
1841
1842config GXP_WATCHDOG
1843	tristate "HPE GXP watchdog support"
1844	depends on ARCH_HPE_GXP
1845	select WATCHDOG_CORE
1846	help
1847	  Say Y here to include support for the watchdog timer
1848	  in HPE GXP SoCs.
1849
1850	  To compile this driver as a module, choose M here.
1851	  The module will be called gxp-wdt.
1852
1853config MT7621_WDT
1854	tristate "Mediatek SoC watchdog"
1855	select WATCHDOG_CORE
1856	depends on SOC_MT7620 || SOC_MT7621
1857	help
1858	  Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1859
1860config PIC32_WDT
1861	tristate "Microchip PIC32 hardware watchdog"
1862	select WATCHDOG_CORE
1863	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1864	help
1865	  Watchdog driver for the built in watchdog hardware in a PIC32.
1866
1867	  Configuration bits must be set appropriately for the watchdog to be
1868	  controlled by this driver.
1869
1870	  To compile this driver as a loadable module, choose M here.
1871	  The module will be called pic32-wdt.
1872
1873config PIC32_DMT
1874	tristate "Microchip PIC32 Deadman Timer"
1875	select WATCHDOG_CORE
1876	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1877	help
1878	  Watchdog driver for PIC32 instruction fetch counting timer. This
1879	  specific timer is typically be used in mission critical and safety
1880	  critical applications, where any single failure of the software
1881	  functionality and sequencing must be detected.
1882
1883	  To compile this driver as a loadable module, choose M here.
1884	  The module will be called pic32-dmt.
1885
1886# PARISC Architecture
1887
1888# POWERPC Architecture
1889
1890config GEF_WDT
1891	tristate "GE Watchdog Timer"
1892	depends on GE_FPGA
1893	help
1894	  Watchdog timer found in a number of GE single board computers.
1895
1896config MPC5200_WDT
1897	bool "MPC52xx Watchdog Timer"
1898	depends on PPC_MPC52xx || COMPILE_TEST
1899	help
1900	  Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1901
1902config 8xxx_WDT
1903	tristate "MPC8xxx Platform Watchdog Timer"
1904	depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1905	select WATCHDOG_CORE
1906	help
1907	  This driver is for a SoC level watchdog that exists on some
1908	  Freescale PowerPC processors. So far this driver supports:
1909	  - MPC8xx watchdogs
1910	  - MPC83xx watchdogs
1911	  - MPC86xx watchdogs
1912
1913	  For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1914
1915config PIKA_WDT
1916	tristate "PIKA FPGA Watchdog"
1917	depends on WARP || (PPC64 && COMPILE_TEST)
1918	default y
1919	help
1920	  This enables the watchdog in the PIKA FPGA. Currently used on
1921	  the Warp platform.
1922
1923config BOOKE_WDT
1924	tristate "PowerPC Book-E Watchdog Timer"
1925	depends on BOOKE || 4xx
1926	select WATCHDOG_CORE
1927	help
1928	  Watchdog driver for PowerPC Book-E chips, such as the Freescale
1929	  MPC85xx SOCs and the IBM PowerPC 440.
1930
1931	  Please see Documentation/watchdog/watchdog-api.rst for
1932	  more information.
1933
1934config BOOKE_WDT_DEFAULT_TIMEOUT
1935	int "PowerPC Book-E Watchdog Timer Default Timeout"
1936	depends on BOOKE_WDT
1937	default 38 if PPC_FSL_BOOK3E
1938	range 0 63 if PPC_FSL_BOOK3E
1939	default 3 if !PPC_FSL_BOOK3E
1940	range 0 3 if !PPC_FSL_BOOK3E
1941	help
1942	  Select the default watchdog timer period to be used by the PowerPC
1943	  Book-E watchdog driver.  A watchdog "event" occurs when the bit
1944	  position represented by this number transitions from zero to one.
1945
1946	  For Freescale Book-E processors, this is a number between 0 and 63.
1947	  For other Book-E processors, this is a number between 0 and 3.
1948
1949	  The value can be overridden by the wdt_period command-line parameter.
1950
1951config MEN_A21_WDT
1952	tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1953	select WATCHDOG_CORE
1954	depends on GPIOLIB || COMPILE_TEST
1955	help
1956	  Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1957
1958	  The driver can also be built as a module. If so, the module will be
1959	  called mena21_wdt.
1960
1961	  If unsure select N here.
1962
1963# PPC64 Architecture
1964
1965config WATCHDOG_RTAS
1966	tristate "RTAS watchdog"
1967	depends on PPC_RTAS
1968	help
1969	  This driver adds watchdog support for the RTAS watchdog.
1970
1971	  To compile this driver as a module, choose M here. The module
1972	  will be called wdrtas.
1973
1974# S390 Architecture
1975
1976config DIAG288_WATCHDOG
1977	tristate "System z diag288 Watchdog"
1978	depends on S390
1979	select WATCHDOG_CORE
1980	help
1981	  IBM s/390 and zSeries machines running under z/VM 5.1 or later
1982	  provide a virtual watchdog timer to their guest that cause a
1983	  user define Control Program command to be executed after a
1984	  timeout.
1985	  LPAR provides a very similar interface. This driver handles
1986	  both.
1987
1988	  To compile this driver as a module, choose M here. The module
1989	  will be called diag288_wdt.
1990
1991# SUPERH (sh + sh64) Architecture
1992
1993config SH_WDT
1994	tristate "SuperH Watchdog"
1995	depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1996	select WATCHDOG_CORE
1997	help
1998	  This driver adds watchdog support for the integrated watchdog in the
1999	  SuperH processors. If you have one of these processors and wish
2000	  to have watchdog support enabled, say Y, otherwise say N.
2001
2002	  As a side note, saying Y here will automatically boost HZ to 1000
2003	  so that the timer has a chance to clear the overflow counter. On
2004	  slower systems (such as the SH-2 and SH-3) this will likely yield
2005	  some performance issues. As such, the WDT should be avoided here
2006	  unless it is absolutely necessary.
2007
2008	  To compile this driver as a module, choose M here: the
2009	  module will be called shwdt.
2010
2011# SPARC Architecture
2012
2013# SPARC64 Architecture
2014
2015config WATCHDOG_CP1XXX
2016	tristate "CP1XXX Hardware Watchdog support"
2017	depends on SPARC64 && PCI
2018	help
2019	  This is the driver for the hardware watchdog timers present on
2020	  Sun Microsystems CompactPCI models CP1400 and CP1500.
2021
2022	  To compile this driver as a module, choose M here: the
2023	  module will be called cpwatchdog.
2024
2025	  If you do not have a CompactPCI model CP1400 or CP1500, or
2026	  another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
2027	  you should say N to this option.
2028
2029config WATCHDOG_RIO
2030	tristate "RIO Hardware Watchdog support"
2031	depends on SPARC64 && PCI
2032	help
2033	  Say Y here to support the hardware watchdog capability on Sun RIO
2034	  machines.  The watchdog timeout period is normally one minute but
2035	  can be changed with a boot-time parameter.
2036
2037config WATCHDOG_SUN4V
2038	tristate "Sun4v Watchdog support"
2039	select WATCHDOG_CORE
2040	depends on SPARC64
2041	help
2042	  Say Y here to support the hypervisor watchdog capability embedded
2043	  in the SPARC sun4v architecture.
2044
2045	  To compile this driver as a module, choose M here. The module will
2046	  be called sun4v_wdt.
2047
2048# XTENSA Architecture
2049
2050# Xen Architecture
2051
2052config XEN_WDT
2053	tristate "Xen Watchdog support"
2054	depends on XEN
2055	select WATCHDOG_CORE
2056	help
2057	  Say Y here to support the hypervisor watchdog capability provided
2058	  by Xen 4.0 and newer.  The watchdog timeout period is normally one
2059	  minute but can be changed with a boot-time parameter.
2060
2061config UML_WATCHDOG
2062	tristate "UML watchdog"
2063	depends on UML || COMPILE_TEST
2064
2065#
2066# ISA-based Watchdog Cards
2067#
2068
2069comment "ISA-based Watchdog Cards"
2070	depends on ISA
2071
2072config PCWATCHDOG
2073	tristate "Berkshire Products ISA-PC Watchdog"
2074	depends on ISA
2075	help
2076	  This is the driver for the Berkshire Products ISA-PC Watchdog card.
2077	  This card simply watches your kernel to make sure it doesn't freeze,
2078	  and if it does, it reboots your computer after a certain amount of
2079	  time. This driver is like the WDT501 driver but for different
2080	  hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>.
2081	  The PC watchdog cards can be ordered from <http://www.berkprod.com/>.
2082
2083	  To compile this driver as a module, choose M here: the
2084	  module will be called pcwd.
2085
2086	  Most people will say N.
2087
2088config MIXCOMWD
2089	tristate "Mixcom Watchdog"
2090	depends on ISA
2091	help
2092	  This is a driver for the Mixcom hardware watchdog cards.  This
2093	  watchdog simply watches your kernel to make sure it doesn't freeze,
2094	  and if it does, it reboots your computer after a certain amount of
2095	  time.
2096
2097	  To compile this driver as a module, choose M here: the
2098	  module will be called mixcomwd.
2099
2100	  Most people will say N.
2101
2102config WDT
2103	tristate "WDT Watchdog timer"
2104	depends on ISA
2105	help
2106	  If you have a WDT500P or WDT501P watchdog board, say Y here,
2107	  otherwise N. It is not possible to probe for this board, which means
2108	  that you have to inform the kernel about the IO port and IRQ that
2109	  is needed (you can do this via the io and irq parameters)
2110
2111	  To compile this driver as a module, choose M here: the
2112	  module will be called wdt.
2113
2114#
2115# PCI-based Watchdog Cards
2116#
2117
2118comment "PCI-based Watchdog Cards"
2119	depends on PCI
2120
2121config PCIPCWATCHDOG
2122	tristate "Berkshire Products PCI-PC Watchdog"
2123	depends on PCI
2124	help
2125	  This is the driver for the Berkshire Products PCI-PC Watchdog card.
2126	  This card simply watches your kernel to make sure it doesn't freeze,
2127	  and if it does, it reboots your computer after a certain amount of
2128	  time. The card can also monitor the internal temperature of the PC.
2129	  More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2130
2131	  To compile this driver as a module, choose M here: the
2132	  module will be called pcwd_pci.
2133
2134	  Most people will say N.
2135
2136config WDTPCI
2137	tristate "PCI-WDT500/501 Watchdog timer"
2138	depends on PCI
2139	help
2140	  If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2141
2142	  If you have a PCI-WDT501 watchdog board then you can enable the
2143	  temperature sensor by setting the type parameter to 501.
2144
2145	  If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2146	  can do this via the tachometer parameter. Only do this if you have a
2147	  fan tachometer actually set up.
2148
2149	  To compile this driver as a module, choose M here: the
2150	  module will be called wdt_pci.
2151
2152#
2153# USB-based Watchdog Cards
2154#
2155
2156comment "USB-based Watchdog Cards"
2157	depends on USB
2158
2159config USBPCWATCHDOG
2160	tristate "Berkshire Products USB-PC Watchdog"
2161	depends on USB
2162	help
2163	  This is the driver for the Berkshire Products USB-PC Watchdog card.
2164	  This card simply watches your kernel to make sure it doesn't freeze,
2165	  and if it does, it reboots your computer after a certain amount of
2166	  time. The card can also monitor the internal temperature of the PC.
2167	  More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2168
2169	  To compile this driver as a module, choose M here: the
2170	  module will be called pcwd_usb.
2171
2172	  Most people will say N.
2173
2174config KEEMBAY_WATCHDOG
2175	tristate "Intel Keem Bay SoC non-secure watchdog"
2176	depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST)
2177	select WATCHDOG_CORE
2178	help
2179	  This option enable support for an In-secure watchdog timer driver for
2180	  Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every
2181	  count unit. An interrupt will be triggered, when the count crosses
2182	  the threshold configured in the register.
2183
2184	  To compile this driver as a module, choose M here: the
2185	  module will be called keembay_wdt.
2186
2187endif # WATCHDOG
2188