xref: /linux/drivers/watchdog/Kconfig (revision 511bd85485c676744a4c3a22f26965926891b131)
1# SPDX-License-Identifier: GPL-2.0-only
2
3#
4# Watchdog device configuration
5#
6
7menuconfig WATCHDOG
8	bool "Watchdog Timer Support"
9	help
10	  If you say Y here (and to one of the following options) and create a
11	  character special file /dev/watchdog with major number 10 and minor
12	  number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:
13	  subsequently opening the file and then failing to write to it for
14	  longer than 1 minute will result in rebooting the machine. This
15	  could be useful for a networked machine that needs to come back
16	  on-line as fast as possible after a lock-up. There's both a watchdog
17	  implementation entirely in software (which can sometimes fail to
18	  reboot the machine) and a driver for hardware watchdog boards, which
19	  are more robust and can also keep track of the temperature inside
20	  your computer. For details, read
21	  <file:Documentation/watchdog/watchdog-api.rst> in the kernel source.
22
23	  The watchdog is usually used together with the watchdog daemon
24	  which is available from
25	  <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can
26	  also monitor NFS connections and can reboot the machine when the process
27	  table is full.
28
29	  If unsure, say N.
30
31if WATCHDOG
32
33config WATCHDOG_CORE
34	tristate "WatchDog Timer Driver Core"
35	help
36	  Say Y here if you want to use the new watchdog timer driver core.
37	  This driver provides a framework for all watchdog timer drivers
38	  and gives them the /dev/watchdog interface (and later also the
39	  sysfs interface).
40
41config WATCHDOG_NOWAYOUT
42	bool "Disable watchdog shutdown on close"
43	help
44	  The default watchdog behaviour (which you get if you say N here) is
45	  to stop the timer if the process managing it closes the file
46	  /dev/watchdog. It's always remotely possible that this process might
47	  get killed. If you say Y here, the watchdog cannot be stopped once
48	  it has been started.
49
50config WATCHDOG_HANDLE_BOOT_ENABLED
51	bool "Update boot-enabled watchdog until userspace takes over"
52	default y
53	help
54	  The default watchdog behaviour (which you get if you say Y here) is
55	  to ping watchdog devices that were enabled before the driver has
56	  been loaded until control is taken over from userspace using the
57	  /dev/watchdog file. If you say N here, the kernel will not update
58	  the watchdog on its own. Thus if your userspace does not start fast
59	  enough your device will reboot.
60
61config WATCHDOG_OPEN_TIMEOUT
62	int "Timeout value for opening watchdog device"
63	default 0
64	help
65	  The maximum time, in seconds, for which the watchdog framework takes
66	  care of pinging a hardware watchdog.  A value of 0 means infinite. The
67	  value set here can be overridden by the commandline parameter
68	  "watchdog.open_timeout".
69
70config WATCHDOG_SYSFS
71	bool "Read different watchdog information through sysfs"
72	help
73	  Say Y here if you want to enable watchdog device status read through
74	  sysfs attributes.
75
76comment "Watchdog Pretimeout Governors"
77
78config WATCHDOG_PRETIMEOUT_GOV
79	bool "Enable watchdog pretimeout governors"
80	depends on WATCHDOG_CORE
81	help
82	  The option allows to select watchdog pretimeout governors.
83
84config WATCHDOG_PRETIMEOUT_GOV_SEL
85	tristate
86	depends on WATCHDOG_PRETIMEOUT_GOV
87	default m
88	select WATCHDOG_PRETIMEOUT_GOV_PANIC if WATCHDOG_PRETIMEOUT_GOV_NOOP=n
89
90if WATCHDOG_PRETIMEOUT_GOV
91
92config WATCHDOG_PRETIMEOUT_GOV_NOOP
93	tristate "Noop watchdog pretimeout governor"
94	depends on WATCHDOG_CORE
95	default WATCHDOG_CORE
96	help
97	  Noop watchdog pretimeout governor, only an informational
98	  message is added to kernel log buffer.
99
100config WATCHDOG_PRETIMEOUT_GOV_PANIC
101	tristate "Panic watchdog pretimeout governor"
102	depends on WATCHDOG_CORE
103	default WATCHDOG_CORE
104	help
105	  Panic watchdog pretimeout governor, on watchdog pretimeout
106	  event put the kernel into panic.
107
108choice
109	prompt "Default Watchdog Pretimeout Governor"
110	default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
111	help
112	  This option selects a default watchdog pretimeout governor.
113	  The governor takes its action, if a watchdog is capable
114	  to report a pretimeout event.
115
116config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP
117	bool "noop"
118	depends on WATCHDOG_PRETIMEOUT_GOV_NOOP
119	help
120	  Use noop watchdog pretimeout governor by default. If noop
121	  governor is selected by a user, write a short message to
122	  the kernel log buffer and don't do any system changes.
123
124config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
125	bool "panic"
126	depends on WATCHDOG_PRETIMEOUT_GOV_PANIC
127	help
128	  Use panic watchdog pretimeout governor by default, if
129	  a watchdog pretimeout event happens, consider that
130	  a watchdog feeder is dead and reboot is unavoidable.
131
132endchoice
133
134endif # WATCHDOG_PRETIMEOUT_GOV
135
136#
137# General Watchdog drivers
138#
139
140comment "Watchdog Device Drivers"
141
142# Architecture Independent
143
144config SOFT_WATCHDOG
145	tristate "Software watchdog"
146	select WATCHDOG_CORE
147	help
148	  A software monitoring watchdog. This will fail to reboot your system
149	  from some situations that the hardware watchdog will recover
150	  from. Equally it's a lot cheaper to install.
151
152	  To compile this driver as a module, choose M here: the
153	  module will be called softdog.
154
155config SOFT_WATCHDOG_PRETIMEOUT
156	bool "Software watchdog pretimeout governor support"
157	depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV
158	help
159	  Enable this if you want to use pretimeout governors with the software
160	  watchdog. Be aware that governors might affect the watchdog because it
161	  is purely software, e.g. the panic governor will stall it!
162
163config BD70528_WATCHDOG
164	tristate "ROHM BD70528 PMIC Watchdog"
165	depends on MFD_ROHM_BD70528
166	select WATCHDOG_CORE
167	help
168	  Support for the watchdog in the ROHM BD70528 PMIC. Watchdog trigger
169	  cause system reset.
170
171	  Say Y here to include support for the ROHM BD70528 watchdog.
172	  Alternatively say M to compile the driver as a module,
173	  which will be called bd70528_wdt.
174
175config DA9052_WATCHDOG
176	tristate "Dialog DA9052 Watchdog"
177	depends on PMIC_DA9052 || COMPILE_TEST
178	select WATCHDOG_CORE
179	help
180	  Support for the watchdog in the DA9052 PMIC. Watchdog trigger
181	  cause system reset.
182
183	  Say Y here to include support for the DA9052 watchdog.
184	  Alternatively say M to compile the driver as a module,
185	  which will be called da9052_wdt.
186
187config DA9055_WATCHDOG
188	tristate "Dialog Semiconductor DA9055 Watchdog"
189	depends on MFD_DA9055 || COMPILE_TEST
190	select WATCHDOG_CORE
191	help
192	  If you say yes here you get support for watchdog on the Dialog
193	  Semiconductor DA9055 PMIC.
194
195	  This driver can also be built as a module.  If so, the module
196	  will be called da9055_wdt.
197
198config DA9063_WATCHDOG
199	tristate "Dialog DA9063 Watchdog"
200	depends on MFD_DA9063 || COMPILE_TEST
201	select WATCHDOG_CORE
202	help
203	  Support for the watchdog in the DA9063 PMIC.
204
205	  This driver can be built as a module. The module name is da9063_wdt.
206
207config DA9062_WATCHDOG
208	tristate "Dialog DA9062/61 Watchdog"
209	depends on MFD_DA9062 || COMPILE_TEST
210	depends on I2C
211	select WATCHDOG_CORE
212	help
213	  Support for the watchdog in the DA9062 and DA9061 PMICs.
214
215	  This driver can be built as a module. The module name is da9062_wdt.
216
217config GPIO_WATCHDOG
218	tristate "Watchdog device controlled through GPIO-line"
219	depends on OF_GPIO
220	select WATCHDOG_CORE
221	help
222	  If you say yes here you get support for watchdog device
223	  controlled through GPIO-line.
224
225config GPIO_WATCHDOG_ARCH_INITCALL
226	bool "Register the watchdog as early as possible"
227	depends on GPIO_WATCHDOG=y
228	help
229	  In some situations, the default initcall level (module_init)
230	  in not early enough in the boot process to avoid the watchdog
231	  to be triggered.
232	  If you say yes here, the initcall level would be raised to
233	  arch_initcall.
234	  If in doubt, say N.
235
236config MENF21BMC_WATCHDOG
237	tristate "MEN 14F021P00 BMC Watchdog"
238	depends on MFD_MENF21BMC || COMPILE_TEST
239	depends on I2C
240	select WATCHDOG_CORE
241	help
242	  Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
243
244	  This driver can also be built as a module. If so the module
245	  will be called menf21bmc_wdt.
246
247config MENZ069_WATCHDOG
248	tristate "MEN 16Z069 Watchdog"
249	depends on MCB
250	select WATCHDOG_CORE
251	help
252	  Say Y here to include support for the MEN 16Z069 Watchdog.
253
254	  This driver can also be built as a module. If so the module
255	  will be called menz069_wdt.
256
257config TANGOX_WATCHDOG
258	tristate "Sigma Designs SMP86xx/SMP87xx watchdog"
259	select WATCHDOG_CORE
260	depends on ARCH_TANGO || COMPILE_TEST
261	depends on HAS_IOMEM
262	help
263	  Support for the watchdog in Sigma Designs SMP86xx (tango3)
264	  and SMP87xx (tango4) family chips.
265
266	  This driver can be built as a module. The module name is tangox_wdt.
267
268config WDAT_WDT
269	tristate "ACPI Watchdog Action Table (WDAT)"
270	depends on ACPI
271	select WATCHDOG_CORE
272	select ACPI_WATCHDOG
273	help
274	  This driver adds support for systems with ACPI Watchdog Action
275	  Table (WDAT) table. Servers typically have this but it can be
276	  found on some desktop machines as well. This driver will take
277	  over the native iTCO watchdog driver found on many Intel CPUs.
278
279	  To compile this driver as module, choose M here: the module will
280	  be called wdat_wdt.
281
282config WM831X_WATCHDOG
283	tristate "WM831x watchdog"
284	depends on MFD_WM831X
285	select WATCHDOG_CORE
286	help
287	  Support for the watchdog in the WM831x AudioPlus PMICs.  When
288	  the watchdog triggers the system will be reset.
289
290config WM8350_WATCHDOG
291	tristate "WM8350 watchdog"
292	depends on MFD_WM8350
293	select WATCHDOG_CORE
294	help
295	  Support for the watchdog in the WM8350 AudioPlus PMIC.  When
296	  the watchdog triggers the system will be reset.
297
298config XILINX_WATCHDOG
299	tristate "Xilinx Watchdog timer"
300	depends on HAS_IOMEM
301	select WATCHDOG_CORE
302	help
303	  Watchdog driver for the xps_timebase_wdt ip core.
304
305	  To compile this driver as a module, choose M here: the
306	  module will be called of_xilinx_wdt.
307
308config ZIIRAVE_WATCHDOG
309	tristate "Zodiac RAVE Watchdog Timer"
310	depends on I2C
311	select WATCHDOG_CORE
312	help
313	  Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
314	  Processor.
315
316	  To compile this driver as a module, choose M here: the
317	  module will be called ziirave_wdt.
318
319config RAVE_SP_WATCHDOG
320	tristate "RAVE SP Watchdog timer"
321	depends on RAVE_SP_CORE
322	depends on NVMEM || !NVMEM
323	select WATCHDOG_CORE
324	help
325	  Support for the watchdog on RAVE SP device.
326
327config MLX_WDT
328	tristate "Mellanox Watchdog"
329	depends on MELLANOX_PLATFORM
330	select WATCHDOG_CORE
331	select REGMAP
332	help
333	  This is the driver for the hardware watchdog on Mellanox systems.
334	  If you are going to use it, say Y here, otherwise N.
335	  This driver can be used together with the watchdog daemon.
336	  It can also watch your kernel to make sure it doesn't freeze,
337	  and if it does, it reboots your system after a certain amount of
338	  time.
339
340	  To compile this driver as a module, choose M here: the
341	  module will be called mlx-wdt.
342
343# ALPHA Architecture
344
345# ARM Architecture
346
347config ARM_SP805_WATCHDOG
348	tristate "ARM SP805 Watchdog"
349	depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
350	select WATCHDOG_CORE
351	help
352	  ARM Primecell SP805 Watchdog timer. This will reboot your system when
353	  the timeout is reached.
354
355config ARM_SBSA_WATCHDOG
356	tristate "ARM SBSA Generic Watchdog"
357	depends on ARM64
358	depends on ARM_ARCH_TIMER
359	select WATCHDOG_CORE
360	help
361	  ARM SBSA Generic Watchdog has two stage timeouts:
362	  the first signal (WS0) is for alerting the system by interrupt,
363	  the second one (WS1) is a real hardware reset.
364	  More details: ARM DEN0029B - Server Base System Architecture (SBSA)
365
366	  This driver can operate ARM SBSA Generic Watchdog as a single stage
367	  or a two stages watchdog, it depends on the module parameter "action".
368
369	  Note: the maximum timeout in the two stages mode is half of that in
370	  the single stage mode.
371
372	  To compile this driver as module, choose M here: The module
373	  will be called sbsa_gwdt.
374
375config ARMADA_37XX_WATCHDOG
376	tristate "Armada 37xx watchdog"
377	depends on ARCH_MVEBU || COMPILE_TEST
378	select MFD_SYSCON
379	select WATCHDOG_CORE
380	help
381	   Say Y here to include support for the watchdog timer found on
382	   Marvell Armada 37xx SoCs.
383	   To compile this driver as a module, choose M here: the
384	   module will be called armada_37xx_wdt.
385
386config ASM9260_WATCHDOG
387	tristate "Alphascale ASM9260 watchdog"
388	depends on MACH_ASM9260 || COMPILE_TEST
389	depends on OF
390	select WATCHDOG_CORE
391	select RESET_CONTROLLER
392	help
393	  Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your
394	  system when the timeout is reached.
395
396config AT91RM9200_WATCHDOG
397	tristate "AT91RM9200 watchdog"
398	depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
399	help
400	  Watchdog timer embedded into AT91RM9200 chips. This will reboot your
401	  system when the timeout is reached.
402
403config AT91SAM9X_WATCHDOG
404	tristate "AT91SAM9X / AT91CAP9 watchdog"
405	depends on ARCH_AT91 || COMPILE_TEST
406	select WATCHDOG_CORE
407	help
408	  Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
409	  reboot your system when the timeout is reached.
410
411config SAMA5D4_WATCHDOG
412	tristate "Atmel SAMA5D4 Watchdog Timer"
413	depends on ARCH_AT91 || COMPILE_TEST
414	select WATCHDOG_CORE
415	help
416	  Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
417	  Its Watchdog Timer Mode Register can be written more than once.
418	  This will reboot your system when the timeout is reached.
419
420config CADENCE_WATCHDOG
421	tristate "Cadence Watchdog Timer"
422	depends on HAS_IOMEM
423	select WATCHDOG_CORE
424	help
425	  Say Y here if you want to include support for the watchdog
426	  timer in the Xilinx Zynq.
427
428config 21285_WATCHDOG
429	tristate "DC21285 watchdog"
430	depends on FOOTBRIDGE
431	help
432	  The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
433	  here if you wish to use this. Alternatively say M to compile the
434	  driver as a module, which will be called wdt285.
435
436	  This driver does not work on all machines. In particular, early CATS
437	  boards have hardware problems that will cause the machine to simply
438	  lock up if the watchdog fires.
439
440	  "If in doubt, leave it out" - say N.
441
442config 977_WATCHDOG
443	tristate "NetWinder WB83C977 watchdog"
444	depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
445	help
446	  Say Y here to include support for the WB977 watchdog included in
447	  NetWinder machines. Alternatively say M to compile the driver as
448	  a module, which will be called wdt977.
449
450	  Not sure? It's safe to say N.
451
452config FTWDT010_WATCHDOG
453	tristate "Faraday Technology FTWDT010 watchdog"
454	depends on ARM || COMPILE_TEST
455	select WATCHDOG_CORE
456	default ARCH_GEMINI
457	help
458	  Say Y here if to include support for the Faraday Technology
459	  FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
460	  family of devices.
461
462	  To compile this driver as a module, choose M here: the
463	  module will be called ftwdt010_wdt.
464
465config IXP4XX_WATCHDOG
466	tristate "IXP4xx Watchdog"
467	depends on ARCH_IXP4XX
468	help
469	  Say Y here if to include support for the watchdog timer
470	  in the Intel IXP4xx network processors. This driver can
471	  be built as a module by choosing M. The module will
472	  be called ixp4xx_wdt.
473
474	  Note: The internal IXP4xx watchdog does a soft CPU reset
475	  which doesn't reset any peripherals. There are circumstances
476	  where the watchdog will fail to reset the board correctly
477	  (e.g., if the boot ROM is in an unreadable state).
478
479	  Say N if you are unsure.
480
481config S3C2410_WATCHDOG
482	tristate "S3C2410 Watchdog"
483	depends on ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || \
484		   COMPILE_TEST
485	select WATCHDOG_CORE
486	select MFD_SYSCON if ARCH_EXYNOS
487	help
488	  Watchdog timer block in the Samsung SoCs. This will reboot
489	  the system when the timer expires with the watchdog enabled.
490
491	  The driver is limited by the speed of the system's PCLK
492	  signal, so with reasonably fast systems (PCLK around 50-66MHz)
493	  then watchdog intervals of over approximately 20seconds are
494	  unavailable.
495
496	  The driver can be built as a module by choosing M, and will
497	  be called s3c2410_wdt
498
499config SA1100_WATCHDOG
500	tristate "SA1100/PXA2xx watchdog"
501	depends on ARCH_SA1100 || ARCH_PXA
502	help
503	  Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
504	  reboot your system when timeout is reached.
505
506	  NOTE: once enabled, this timer cannot be disabled.
507
508	  To compile this driver as a module, choose M here: the
509	  module will be called sa1100_wdt.
510
511config DW_WATCHDOG
512	tristate "Synopsys DesignWare watchdog"
513	depends on HAS_IOMEM
514	select WATCHDOG_CORE
515	help
516	  Say Y here if to include support for the Synopsys DesignWare
517	  watchdog timer found in many chips.
518	  To compile this driver as a module, choose M here: the
519	  module will be called dw_wdt.
520
521config EP93XX_WATCHDOG
522	tristate "EP93xx Watchdog"
523	depends on ARCH_EP93XX || COMPILE_TEST
524	select WATCHDOG_CORE
525	help
526	  Say Y here if to include support for the watchdog timer
527	  embedded in the Cirrus Logic EP93xx family of devices.
528
529	  To compile this driver as a module, choose M here: the
530	  module will be called ep93xx_wdt.
531
532config OMAP_WATCHDOG
533	tristate "OMAP Watchdog"
534	depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
535	select WATCHDOG_CORE
536	help
537	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.  Say 'Y'
538	  here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
539
540config PNX4008_WATCHDOG
541	tristate "LPC32XX Watchdog"
542	depends on ARCH_LPC32XX || COMPILE_TEST
543	select WATCHDOG_CORE
544	help
545	  Say Y here if to include support for the watchdog timer
546	  in the LPC32XX processor.
547	  This driver can be built as a module by choosing M. The module
548	  will be called pnx4008_wdt.
549
550	  Say N if you are unsure.
551
552config IOP_WATCHDOG
553	tristate "IOP Watchdog"
554	depends on ARCH_IOP13XX
555	select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
556	help
557	  Say Y here if to include support for the watchdog timer
558	  in the Intel IOP3XX & IOP13XX I/O Processors.  This driver can
559	  be built as a module by choosing M. The module will
560	  be called iop_wdt.
561
562	  Note: The IOP13XX watchdog does an Internal Bus Reset which will
563	  affect both cores and the peripherals of the IOP.  The ATU-X
564	  and/or ATUe configuration registers will remain intact, but if
565	  operating as an Root Complex and/or Central Resource, the PCI-X
566	  and/or PCIe busses will also be reset.  THIS IS A VERY BIG HAMMER.
567
568config DAVINCI_WATCHDOG
569	tristate "DaVinci watchdog"
570	depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
571	select WATCHDOG_CORE
572	help
573	  Say Y here if to include support for the watchdog timer
574	  in the DaVinci DM644x/DM646x or Keystone processors.
575	  To compile this driver as a module, choose M here: the
576	  module will be called davinci_wdt.
577
578	  NOTE: once enabled, this timer cannot be disabled.
579	  Say N if you are unsure.
580
581config K3_RTI_WATCHDOG
582	tristate "Texas Instruments K3 RTI watchdog"
583	depends on ARCH_K3 || COMPILE_TEST
584	select WATCHDOG_CORE
585	help
586	  Say Y here if you want to include support for the K3 watchdog
587	  timer (RTI module) available in the K3 generation of processors.
588
589config ORION_WATCHDOG
590	tristate "Orion watchdog"
591	depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || (COMPILE_TEST && !ARCH_EBSA110)
592	depends on ARM
593	select WATCHDOG_CORE
594	help
595	  Say Y here if to include support for the watchdog timer
596	  in the Marvell Orion5x and Kirkwood ARM SoCs.
597	  To compile this driver as a module, choose M here: the
598	  module will be called orion_wdt.
599
600config RN5T618_WATCHDOG
601	tristate "Ricoh RN5T618 watchdog"
602	depends on MFD_RN5T618 || COMPILE_TEST
603	select WATCHDOG_CORE
604	help
605	  If you say yes here you get support for watchdog on the Ricoh
606	  RN5T618 PMIC.
607
608	  This driver can also be built as a module.  If so, the module
609	  will be called rn5t618_wdt.
610
611config SUNXI_WATCHDOG
612	tristate "Allwinner SoCs watchdog support"
613	depends on ARCH_SUNXI || COMPILE_TEST
614	select WATCHDOG_CORE
615	help
616	  Say Y here to include support for the watchdog timer
617	  in Allwinner SoCs.
618	  To compile this driver as a module, choose M here: the
619	  module will be called sunxi_wdt.
620
621config COH901327_WATCHDOG
622	bool "ST-Ericsson COH 901 327 watchdog"
623	depends on ARCH_U300 || (ARM && COMPILE_TEST)
624	default y if MACH_U300
625	select WATCHDOG_CORE
626	help
627	  Say Y here to include Watchdog timer support for the
628	  watchdog embedded into the ST-Ericsson U300 series platforms.
629	  This watchdog is used to reset the system and thus cannot be
630	  compiled as a module.
631
632config NPCM7XX_WATCHDOG
633	tristate "Nuvoton NPCM750 watchdog"
634	depends on ARCH_NPCM || COMPILE_TEST
635	default y if ARCH_NPCM7XX
636	select WATCHDOG_CORE
637	help
638	  Say Y here to include Watchdog timer support for the
639	  watchdog embedded into the NPCM7xx.
640	  This watchdog is used to reset the system and thus cannot be
641	  compiled as a module.
642
643config TWL4030_WATCHDOG
644	tristate "TWL4030 Watchdog"
645	depends on TWL4030_CORE
646	select WATCHDOG_CORE
647	help
648	  Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
649	  watchdog timer support for TWL4030 chips.
650
651config STMP3XXX_RTC_WATCHDOG
652	tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
653	depends on RTC_DRV_STMP || COMPILE_TEST
654	select WATCHDOG_CORE
655	help
656	  Say Y here to include support for the watchdog timer inside
657	  the RTC for the STMP37XX/378X or i.MX23/28 SoC.
658	  To compile this driver as a module, choose M here: the
659	  module will be called stmp3xxx_rtc_wdt.
660
661config TS4800_WATCHDOG
662	tristate "TS-4800 Watchdog"
663	depends on HAS_IOMEM && OF
664	depends on SOC_IMX51 || COMPILE_TEST
665	select WATCHDOG_CORE
666	select MFD_SYSCON
667	help
668	  Technologic Systems TS-4800 has watchdog timer implemented in
669	  an external FPGA. Say Y here if you want to support for the
670	  watchdog timer on TS-4800 board.
671
672config TS72XX_WATCHDOG
673	tristate "TS-72XX SBC Watchdog"
674	depends on MACH_TS72XX || COMPILE_TEST
675	select WATCHDOG_CORE
676	help
677	  Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
678	  watchdog timer implemented in a external CPLD chip. Say Y here
679	  if you want to support for the watchdog timer on TS-72XX boards.
680
681	  To compile this driver as a module, choose M here: the
682	  module will be called ts72xx_wdt.
683
684config MAX63XX_WATCHDOG
685	tristate "Max63xx watchdog"
686	depends on HAS_IOMEM
687	select WATCHDOG_CORE
688	help
689	  Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
690
691config MAX77620_WATCHDOG
692	tristate "Maxim Max77620 Watchdog Timer"
693	depends on MFD_MAX77620 || COMPILE_TEST
694	select WATCHDOG_CORE
695	help
696	 This is the driver for the Max77620 watchdog timer.
697	 Say 'Y' here to enable the watchdog timer support for
698	 MAX77620 chips. To compile this driver as a module,
699	 choose M here: the module will be called max77620_wdt.
700
701config IMX2_WDT
702	tristate "IMX2+ Watchdog"
703	depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
704	select REGMAP_MMIO
705	select WATCHDOG_CORE
706	help
707	  This is the driver for the hardware watchdog
708	  on the Freescale IMX2 and later processors.
709	  If you have one of these processors and wish to have
710	  watchdog support enabled, say Y, otherwise say N.
711
712	  To compile this driver as a module, choose M here: the
713	  module will be called imx2_wdt.
714
715config IMX_SC_WDT
716	tristate "IMX SC Watchdog"
717	depends on HAVE_ARM_SMCCC
718	depends on IMX_SCU
719	select WATCHDOG_CORE
720	help
721	  This is the driver for the system controller watchdog
722	  on the NXP i.MX SoCs with system controller inside, the
723	  watchdog driver will call ARM SMC API and trap into
724	  ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
725	  will request system controller to execute the operations.
726	  If you have one of these processors and wish to have
727	  watchdog support enabled, say Y, otherwise say N.
728
729	  To compile this driver as a module, choose M here: the
730	  module will be called imx_sc_wdt.
731
732config IMX7ULP_WDT
733	tristate "IMX7ULP Watchdog"
734	depends on ARCH_MXC || COMPILE_TEST
735	select WATCHDOG_CORE
736	help
737	  This is the driver for the hardware watchdog on the Freescale
738	  IMX7ULP and later processors. If you have one of these
739	  processors and wish to have watchdog support enabled,
740	  say Y, otherwise say N.
741
742	  To compile this driver as a module, choose M here: the
743	  module will be called imx7ulp_wdt.
744
745config UX500_WATCHDOG
746	tristate "ST-Ericsson Ux500 watchdog"
747	depends on MFD_DB8500_PRCMU
748	select WATCHDOG_CORE
749	default y
750	help
751	  Say Y here to include Watchdog timer support for the watchdog
752	  existing in the prcmu of ST-Ericsson Ux500 series platforms.
753
754	  To compile this driver as a module, choose M here: the
755	  module will be called ux500_wdt.
756
757config RETU_WATCHDOG
758	tristate "Retu watchdog"
759	depends on MFD_RETU
760	select WATCHDOG_CORE
761	help
762	  Retu watchdog driver for Nokia Internet Tablets (770, N800,
763	  N810). At least on N800 the watchdog cannot be disabled, so
764	  this driver is essential and you should enable it.
765
766	  To compile this driver as a module, choose M here: the
767	  module will be called retu_wdt.
768
769config MOXART_WDT
770	tristate "MOXART watchdog"
771	depends on ARCH_MOXART || COMPILE_TEST
772	help
773	  Say Y here to include Watchdog timer support for the watchdog
774	  existing on the MOXA ART SoC series platforms.
775
776	  To compile this driver as a module, choose M here: the
777	  module will be called moxart_wdt.
778
779config SIRFSOC_WATCHDOG
780	tristate "SiRFSOC watchdog"
781	depends on ARCH_SIRF || COMPILE_TEST
782	select WATCHDOG_CORE
783	default y
784	help
785	  Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
786	  the watchdog triggers the system will be reset.
787
788config ST_LPC_WATCHDOG
789	tristate "STMicroelectronics LPC Watchdog"
790	depends on ARCH_STI || COMPILE_TEST
791	depends on OF
792	select WATCHDOG_CORE
793	help
794	  Say Y here to include STMicroelectronics Low Power Controller
795	  (LPC) based Watchdog timer support.
796
797	  To compile this driver as a module, choose M here: the
798	  module will be called st_lpc_wdt.
799
800config TEGRA_WATCHDOG
801	tristate "Tegra watchdog"
802	depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
803	select WATCHDOG_CORE
804	help
805	  Say Y here to include support for the watchdog timer
806	  embedded in NVIDIA Tegra SoCs.
807
808	  To compile this driver as a module, choose M here: the
809	  module will be called tegra_wdt.
810
811config QCOM_WDT
812	tristate "QCOM watchdog"
813	depends on HAS_IOMEM
814	depends on ARCH_QCOM || COMPILE_TEST
815	select WATCHDOG_CORE
816	help
817	  Say Y here to include Watchdog timer support for the watchdog found
818	  on QCOM chipsets.  Currently supported targets are the MSM8960,
819	  APQ8064, and IPQ8064.
820
821	  To compile this driver as a module, choose M here: the
822	  module will be called qcom_wdt.
823
824config MESON_GXBB_WATCHDOG
825	tristate "Amlogic Meson GXBB SoCs watchdog support"
826	depends on ARCH_MESON || COMPILE_TEST
827	select WATCHDOG_CORE
828	help
829	  Say Y here to include support for the watchdog timer
830	  in Amlogic Meson GXBB SoCs.
831	  To compile this driver as a module, choose M here: the
832	  module will be called meson_gxbb_wdt.
833
834config MESON_WATCHDOG
835	tristate "Amlogic Meson SoCs watchdog support"
836	depends on ARCH_MESON || COMPILE_TEST
837	select WATCHDOG_CORE
838	help
839	  Say Y here to include support for the watchdog timer
840	  in Amlogic Meson SoCs.
841	  To compile this driver as a module, choose M here: the
842	  module will be called meson_wdt.
843
844config MEDIATEK_WATCHDOG
845	tristate "Mediatek SoCs watchdog support"
846	depends on ARCH_MEDIATEK || COMPILE_TEST
847	select WATCHDOG_CORE
848	select RESET_CONTROLLER
849	help
850	  Say Y here to include support for the watchdog timer
851	  in Mediatek SoCs.
852	  To compile this driver as a module, choose M here: the
853	  module will be called mtk_wdt.
854
855config DIGICOLOR_WATCHDOG
856	tristate "Conexant Digicolor SoCs watchdog support"
857	depends on ARCH_DIGICOLOR || COMPILE_TEST
858	select WATCHDOG_CORE
859	help
860	  Say Y here to include support for the watchdog timer
861	  in Conexant Digicolor SoCs.
862	  To compile this driver as a module, choose M here: the
863	  module will be called digicolor_wdt.
864
865config ARM_SMC_WATCHDOG
866	tristate "ARM Secure Monitor Call based watchdog support"
867	depends on ARM || ARM64
868	depends on OF
869	depends on HAVE_ARM_SMCCC
870	select WATCHDOG_CORE
871	help
872	  Say Y here to include support for a watchdog timer
873	  implemented by the EL3 Secure Monitor on ARM platforms.
874	  Requires firmware support.
875	  To compile this driver as a module, choose M here: the
876	  module will be called arm_smc_wdt.
877
878config LPC18XX_WATCHDOG
879	tristate "LPC18xx/43xx Watchdog"
880	depends on ARCH_LPC18XX || COMPILE_TEST
881	depends on HAS_IOMEM
882	select WATCHDOG_CORE
883	help
884	  Say Y here if to include support for the watchdog timer
885	  in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
886	  processors.
887	  To compile this driver as a module, choose M here: the
888	  module will be called lpc18xx_wdt.
889
890config ATLAS7_WATCHDOG
891	tristate "CSRatlas7 watchdog"
892	depends on ARCH_ATLAS7 || COMPILE_TEST
893	help
894	  Say Y here to include Watchdog timer support for the watchdog
895	  existing on the CSRatlas7 series platforms.
896
897	  To compile this driver as a module, choose M here: the
898	  module will be called atlas7_wdt.
899
900config RENESAS_WDT
901	tristate "Renesas WDT Watchdog"
902	depends on ARCH_RENESAS || COMPILE_TEST
903	select WATCHDOG_CORE
904	help
905	  This driver adds watchdog support for the integrated watchdogs in the
906	  Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
907
908config RENESAS_RZAWDT
909	tristate "Renesas RZ/A WDT Watchdog"
910	depends on ARCH_RENESAS || COMPILE_TEST
911	select WATCHDOG_CORE
912	help
913	  This driver adds watchdog support for the integrated watchdogs in the
914	  Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
915
916config ASPEED_WATCHDOG
917	tristate "Aspeed BMC watchdog support"
918	depends on ARCH_ASPEED || COMPILE_TEST
919	select WATCHDOG_CORE
920	help
921	  Say Y here to include support for the watchdog timer
922	  in Aspeed BMC SoCs.
923
924	  This driver is required to reboot the SoC.
925
926	  To compile this driver as a module, choose M here: the
927	  module will be called aspeed_wdt.
928
929config ZX2967_WATCHDOG
930	tristate "ZTE zx2967 SoCs watchdog support"
931	depends on ARCH_ZX
932	select WATCHDOG_CORE
933	help
934	  Say Y here to include support for the watchdog timer
935	  in ZTE zx2967 SoCs.
936	  To compile this driver as a module, choose M here: the
937	  module will be called zx2967_wdt.
938
939config STM32_WATCHDOG
940	tristate "STM32 Independent WatchDoG (IWDG) support"
941	depends on ARCH_STM32
942	select WATCHDOG_CORE
943	default y
944	help
945	  Say Y here to include support for the watchdog timer
946	  in stm32 SoCs.
947
948	  To compile this driver as a module, choose M here: the
949	  module will be called stm32_iwdg.
950
951config STPMIC1_WATCHDOG
952	tristate "STPMIC1 PMIC watchdog support"
953	depends on MFD_STPMIC1
954	select WATCHDOG_CORE
955	help
956	  Say Y here to include watchdog support embedded into STPMIC1 PMIC.
957	  If the watchdog timer expires, stpmic1 will shut down all its power
958	  supplies.
959
960	  To compile this driver as a module, choose M here: the
961	  module will be called spmic1_wdt.
962
963config UNIPHIER_WATCHDOG
964	tristate "UniPhier watchdog support"
965	depends on ARCH_UNIPHIER || COMPILE_TEST
966	depends on OF && MFD_SYSCON
967	select WATCHDOG_CORE
968	help
969	  Say Y here to include support watchdog timer embedded
970	  into the UniPhier system.
971
972	  To compile this driver as a module, choose M here: the
973	  module will be called uniphier_wdt.
974
975config RTD119X_WATCHDOG
976	bool "Realtek RTD119x/RTD129x watchdog support"
977	depends on ARCH_REALTEK || COMPILE_TEST
978	depends on OF
979	select WATCHDOG_CORE
980	default ARCH_REALTEK
981	help
982	  Say Y here to include support for the watchdog timer in
983	  Realtek RTD1295 SoCs.
984
985config SPRD_WATCHDOG
986	tristate "Spreadtrum watchdog support"
987	depends on ARCH_SPRD || COMPILE_TEST
988	select WATCHDOG_CORE
989	help
990	  Say Y here to include watchdog timer supported
991	  by Spreadtrum system.
992
993config PM8916_WATCHDOG
994	tristate "QCOM PM8916 pmic watchdog"
995	depends on OF && MFD_SPMI_PMIC
996	select WATCHDOG_CORE
997	help
998	  Say Y here to include support watchdog timer embedded into the
999	  pm8916 module.
1000
1001# X86 (i386 + ia64 + x86_64) Architecture
1002
1003config ACQUIRE_WDT
1004	tristate "Acquire SBC Watchdog Timer"
1005	depends on X86
1006	help
1007	  This is the driver for the hardware watchdog on Single Board
1008	  Computers produced by Acquire Inc (and others). This watchdog
1009	  simply watches your kernel to make sure it doesn't freeze, and if
1010	  it does, it reboots your computer after a certain amount of time.
1011
1012	  To compile this driver as a module, choose M here: the
1013	  module will be called acquirewdt.
1014
1015	  Most people will say N.
1016
1017config ADVANTECH_WDT
1018	tristate "Advantech SBC Watchdog Timer"
1019	depends on X86
1020	help
1021	  If you are configuring a Linux kernel for the Advantech single-board
1022	  computer, say `Y' here to support its built-in watchdog timer
1023	  feature. More information can be found at
1024	  <https://www.advantech.com.tw/products/>
1025
1026config ALIM1535_WDT
1027	tristate "ALi M1535 PMU Watchdog Timer"
1028	depends on X86 && PCI
1029	help
1030	  This is the driver for the hardware watchdog on the ALi M1535 PMU.
1031
1032	  To compile this driver as a module, choose M here: the
1033	  module will be called alim1535_wdt.
1034
1035	  Most people will say N.
1036
1037config ALIM7101_WDT
1038	tristate "ALi M7101 PMU Computer Watchdog"
1039	depends on PCI
1040	help
1041	  This is the driver for the hardware watchdog on the ALi M7101 PMU
1042	  as used in the x86 Cobalt servers and also found in some
1043	  SPARC Netra servers too.
1044
1045	  To compile this driver as a module, choose M here: the
1046	  module will be called alim7101_wdt.
1047
1048	  Most people will say N.
1049
1050config EBC_C384_WDT
1051	tristate "WinSystems EBC-C384 Watchdog Timer"
1052	depends on X86
1053	select ISA_BUS_API
1054	select WATCHDOG_CORE
1055	help
1056	  Enables watchdog timer support for the watchdog timer on the
1057	  WinSystems EBC-C384 motherboard. The timeout may be configured via
1058	  the timeout module parameter.
1059
1060config F71808E_WDT
1061	tristate "Fintek F718xx, F818xx Super I/O Watchdog"
1062	depends on X86
1063	help
1064	  This is the driver for the hardware watchdog on the Fintek F71808E,
1065	  F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and
1066	  F81866 Super I/O controllers.
1067
1068	  You can compile this driver directly into the kernel, or use
1069	  it as a module.  The module will be called f71808e_wdt.
1070
1071config SP5100_TCO
1072	tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
1073	depends on X86 && PCI
1074	select WATCHDOG_CORE
1075	help
1076	  Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
1077	  (Total Cost of Ownership) timer is a watchdog timer that will reboot
1078	  the machine after its expiration. The expiration time can be
1079	  configured with the "heartbeat" parameter.
1080
1081	  To compile this driver as a module, choose M here: the
1082	  module will be called sp5100_tco.
1083
1084config GEODE_WDT
1085	tristate "AMD Geode CS5535/CS5536 Watchdog"
1086	depends on CS5535_MFGPT
1087	help
1088	  This driver enables a watchdog capability built into the
1089	  CS5535/CS5536 companion chips for the AMD Geode GX and LX
1090	  processors.  This watchdog watches your kernel to make sure
1091	  it doesn't freeze, and if it does, it reboots your computer after
1092	  a certain amount of time.
1093
1094	  You can compile this driver directly into the kernel, or use
1095	  it as a module.  The module will be called geodewdt.
1096
1097config SC520_WDT
1098	tristate "AMD Elan SC520 processor Watchdog"
1099	depends on MELAN || COMPILE_TEST
1100	help
1101	  This is the driver for the hardware watchdog built in to the
1102	  AMD "Elan" SC520 microcomputer commonly used in embedded systems.
1103	  This watchdog simply watches your kernel to make sure it doesn't
1104	  freeze, and if it does, it reboots your computer after a certain
1105	  amount of time.
1106
1107	  You can compile this driver directly into the kernel, or use
1108	  it as a module.  The module will be called sc520_wdt.
1109
1110config SBC_FITPC2_WATCHDOG
1111	tristate "Compulab SBC-FITPC2 watchdog"
1112	depends on X86
1113	help
1114	  This is the driver for the built-in watchdog timer on the fit-PC2,
1115	  fit-PC2i, CM-iAM single-board computers made by Compulab.
1116
1117	  It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
1118	  When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
1119
1120	  Entering BIOS setup temporary disables watchdog operation regardless to current state,
1121	  so system will not be restarted while user in BIOS setup.
1122
1123	  Once watchdog was enabled the system will be restarted every
1124	  "Watchdog Timer Value" period, so to prevent it user can restart or
1125	  disable the watchdog.
1126
1127	  To compile this driver as a module, choose M here: the
1128	  module will be called sbc_fitpc2_wdt.
1129
1130	  Most people will say N.
1131
1132config EUROTECH_WDT
1133	tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1134	depends on X86
1135	help
1136	  Enable support for the watchdog timer on the Eurotech CPU-1220 and
1137	  CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
1138	  information are at <http://www.eurotech.it/>.
1139
1140config IB700_WDT
1141	tristate "IB700 SBC Watchdog Timer"
1142	depends on X86
1143	help
1144	  This is the driver for the hardware watchdog on the IB700 Single
1145	  Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
1146	  simply watches your kernel to make sure it doesn't freeze, and if
1147	  it does, it reboots your computer after a certain amount of time.
1148
1149	  This driver is like the WDT501 driver but for slightly different hardware.
1150
1151	  To compile this driver as a module, choose M here: the
1152	  module will be called ib700wdt.
1153
1154	  Most people will say N.
1155
1156config IBMASR
1157	tristate "IBM Automatic Server Restart"
1158	depends on X86
1159	help
1160	  This is the driver for the IBM Automatic Server Restart watchdog
1161	  timer built-in into some eServer xSeries machines.
1162
1163	  To compile this driver as a module, choose M here: the
1164	  module will be called ibmasr.
1165
1166config WAFER_WDT
1167	tristate "ICP Single Board Computer Watchdog Timer"
1168	depends on X86
1169	help
1170	  This is a driver for the hardware watchdog on the ICP Single
1171	  Board Computer. This driver is working on (at least) the following
1172	  IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1173
1174	  To compile this driver as a module, choose M here: the
1175	  module will be called wafer5823wdt.
1176
1177config I6300ESB_WDT
1178	tristate "Intel 6300ESB Timer/Watchdog"
1179	depends on PCI
1180	select WATCHDOG_CORE
1181	help
1182	  Hardware driver for the watchdog timer built into the Intel
1183	  6300ESB controller hub.
1184
1185	  To compile this driver as a module, choose M here: the
1186	  module will be called i6300esb.
1187
1188config IE6XX_WDT
1189	tristate "Intel Atom E6xx Watchdog"
1190	depends on X86 && PCI
1191	select WATCHDOG_CORE
1192	select MFD_CORE
1193	select LPC_SCH
1194	help
1195	  Hardware driver for the watchdog timer built into the Intel
1196	  Atom E6XX (TunnelCreek) processor.
1197
1198	  To compile this driver as a module, choose M here: the
1199	  module will be called ie6xx_wdt.
1200
1201config INTEL_SCU_WATCHDOG
1202	bool "Intel SCU Watchdog for Mobile Platforms"
1203	depends on X86_INTEL_MID
1204	help
1205	  Hardware driver for the watchdog time built into the Intel SCU
1206	  for Intel Mobile Platforms.
1207
1208	  To compile this driver as a module, choose M here.
1209
1210config INTEL_MID_WATCHDOG
1211	tristate "Intel MID Watchdog Timer"
1212	depends on X86_INTEL_MID
1213	select WATCHDOG_CORE
1214	help
1215	  Watchdog timer driver built into the Intel SCU for Intel MID
1216	  Platforms.
1217
1218	  This driver currently supports only the watchdog evolution
1219	  implementation in SCU, available for Merrifield generation.
1220
1221	  To compile this driver as a module, choose M here.
1222
1223config ITCO_WDT
1224	tristate "Intel TCO Timer/Watchdog"
1225	depends on (X86 || IA64) && PCI
1226	select WATCHDOG_CORE
1227	depends on I2C || I2C=n
1228	depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT
1229	select LPC_ICH if !EXPERT
1230	select I2C_I801 if !EXPERT && I2C
1231	help
1232	  Hardware driver for the intel TCO timer based watchdog devices.
1233	  These drivers are included in the Intel 82801 I/O Controller
1234	  Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1235	  controller hub.
1236
1237	  The TCO (Total Cost of Ownership) timer is a watchdog timer
1238	  that will reboot the machine after its second expiration. The
1239	  expiration time can be configured with the "heartbeat" parameter.
1240
1241	  On some motherboards the driver may fail to reset the chipset's
1242	  NO_REBOOT flag which prevents the watchdog from rebooting the
1243	  machine. If this is the case you will get a kernel message like
1244	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1245
1246	  To compile this driver as a module, choose M here: the
1247	  module will be called iTCO_wdt.
1248
1249config ITCO_VENDOR_SUPPORT
1250	bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1251	depends on ITCO_WDT
1252	help
1253	  Add vendor specific support to the intel TCO timer based watchdog
1254	  devices. At this moment we only have additional support for some
1255	  SuperMicro Inc. motherboards.
1256
1257config IT8712F_WDT
1258	tristate "IT8712F (Smart Guardian) Watchdog Timer"
1259	depends on X86
1260	help
1261	  This is the driver for the built-in watchdog timer on the IT8712F
1262	  Super I/0 chipset used on many motherboards.
1263
1264	  If the driver does not work, then make sure that the game port in
1265	  the BIOS is enabled.
1266
1267	  To compile this driver as a module, choose M here: the
1268	  module will be called it8712f_wdt.
1269
1270config IT87_WDT
1271	tristate "IT87 Watchdog Timer"
1272	depends on X86
1273	select WATCHDOG_CORE
1274	help
1275	  This is the driver for the hardware watchdog on the ITE IT8607,
1276	  IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1277	  IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1278	  IT8783 Super I/O chips.
1279
1280	  This watchdog simply watches your kernel to make sure it doesn't
1281	  freeze, and if it does, it reboots your computer after a certain
1282	  amount of time.
1283
1284	  To compile this driver as a module, choose M here: the module will
1285	  be called it87_wdt.
1286
1287config HP_WATCHDOG
1288	tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1289	select WATCHDOG_CORE
1290	depends on X86 && PCI
1291	help
1292	  A software monitoring watchdog and NMI handling driver. This driver
1293	  will detect lockups and provide a stack trace. This is a driver that
1294	  will only load on an HP ProLiant system with a minimum of iLO2 support.
1295	  To compile this driver as a module, choose M here: the module will be
1296	  called hpwdt.
1297
1298config HPWDT_NMI_DECODING
1299	bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1300	depends on HP_WATCHDOG
1301	default y
1302	help
1303	  Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1304	  "Generate NMI to System" virtual button.  When an NMI is claimed
1305	  by the driver, panic is called.
1306
1307config KEMPLD_WDT
1308	tristate "Kontron COM Watchdog Timer"
1309	depends on MFD_KEMPLD
1310	select WATCHDOG_CORE
1311	help
1312	  Support for the PLD watchdog on some Kontron ETX and COMexpress
1313	  (ETXexpress) modules
1314
1315	  This driver can also be built as a module. If so, the module will be
1316	  called kempld_wdt.
1317
1318config SC1200_WDT
1319	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1320	depends on X86
1321	help
1322	  This is a driver for National Semiconductor PC87307/PC97307 hardware
1323	  watchdog cards as found on the SC1200. This watchdog is mainly used
1324	  for power management purposes and can be used to power down the device
1325	  during inactivity periods (includes interrupt activity monitoring).
1326
1327	  To compile this driver as a module, choose M here: the
1328	  module will be called sc1200wdt.
1329
1330	  Most people will say N.
1331
1332config SCx200_WDT
1333	tristate "National Semiconductor SCx200 Watchdog"
1334	depends on SCx200 && PCI
1335	help
1336	  Enable the built-in watchdog timer support on the National
1337	  Semiconductor SCx200 processors.
1338
1339	  If compiled as a module, it will be called scx200_wdt.
1340
1341config PC87413_WDT
1342	tristate "NS PC87413 watchdog"
1343	depends on X86
1344	help
1345	  This is the driver for the hardware watchdog on the PC87413 chipset
1346	  This watchdog simply watches your kernel to make sure it doesn't
1347	  freeze, and if it does, it reboots your computer after a certain
1348	  amount of time.
1349
1350	  To compile this driver as a module, choose M here: the
1351	  module will be called pc87413_wdt.
1352
1353	  Most people will say N.
1354
1355config NV_TCO
1356	tristate "nVidia TCO Timer/Watchdog"
1357	depends on X86 && PCI
1358	help
1359	  Hardware driver for the TCO timer built into the nVidia Hub family
1360	  (such as the MCP51).  The TCO (Total Cost of Ownership) timer is a
1361	  watchdog timer that will reboot the machine after its second
1362	  expiration. The expiration time can be configured with the
1363	  "heartbeat" parameter.
1364
1365	  On some motherboards the driver may fail to reset the chipset's
1366	  NO_REBOOT flag which prevents the watchdog from rebooting the
1367	  machine. If this is the case you will get a kernel message like
1368	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1369
1370	  To compile this driver as a module, choose M here: the
1371	  module will be called nv_tco.
1372
1373config RDC321X_WDT
1374	tristate "RDC R-321x SoC watchdog"
1375	depends on X86_RDC321X || COMPILE_TEST
1376	depends on PCI
1377	help
1378	  This is the driver for the built in hardware watchdog
1379	  in the RDC R-321x SoC.
1380
1381	  To compile this driver as a module, choose M here: the
1382	  module will be called rdc321x_wdt.
1383
1384config 60XX_WDT
1385	tristate "SBC-60XX Watchdog Timer"
1386	depends on X86
1387	help
1388	  This driver can be used with the watchdog timer found on some
1389	  single board computers, namely the 6010 PII based computer.
1390	  It may well work with other cards.  It reads port 0x443 to enable
1391	  and re-set the watchdog timer, and reads port 0x45 to disable
1392	  the watchdog.  If you have a card that behave in similar ways,
1393	  you can probably make this driver work with your card as well.
1394
1395	  You can compile this driver directly into the kernel, or use
1396	  it as a module.  The module will be called sbc60xxwdt.
1397
1398config SBC8360_WDT
1399	tristate "SBC8360 Watchdog Timer"
1400	depends on X86_32
1401	help
1402
1403	  This is the driver for the hardware watchdog on the SBC8360 Single
1404	  Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1405
1406	  To compile this driver as a module, choose M here: the
1407	  module will be called sbc8360.
1408
1409	  Most people will say N.
1410
1411config SBC7240_WDT
1412	tristate "SBC Nano 7240 Watchdog Timer"
1413	depends on X86_32 && !UML
1414	help
1415	  This is the driver for the hardware watchdog found on the IEI
1416	  single board computers EPIC Nano 7240 (and likely others). This
1417	  watchdog simply watches your kernel to make sure it doesn't freeze,
1418	  and if it does, it reboots your computer after a certain amount of
1419	  time.
1420
1421	  To compile this driver as a module, choose M here: the
1422	  module will be called sbc7240_wdt.
1423
1424config CPU5_WDT
1425	tristate "SMA CPU5 Watchdog"
1426	depends on X86
1427	help
1428	  TBD.
1429	  To compile this driver as a module, choose M here: the
1430	  module will be called cpu5wdt.
1431
1432config SMSC_SCH311X_WDT
1433	tristate "SMSC SCH311X Watchdog Timer"
1434	depends on X86
1435	help
1436	  This is the driver for the hardware watchdog timer on the
1437	  SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1438	  (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1439	  serial ports).
1440
1441	  To compile this driver as a module, choose M here: the
1442	  module will be called sch311x_wdt.
1443
1444config SMSC37B787_WDT
1445	tristate "Winbond SMsC37B787 Watchdog Timer"
1446	depends on X86
1447	help
1448	  This is the driver for the hardware watchdog component on the
1449	  Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1450	  from Vision Systems and maybe others.
1451
1452	  This watchdog simply watches your kernel to make sure it doesn't
1453	  freeze, and if it does, it reboots your computer after a certain
1454	  amount of time.
1455
1456	  Usually a userspace daemon will notify the kernel WDT driver that
1457	  userspace is still alive, at regular intervals.
1458
1459	  To compile this driver as a module, choose M here: the
1460	  module will be called smsc37b787_wdt.
1461
1462	  Most people will say N.
1463
1464config TQMX86_WDT
1465	tristate "TQ-Systems TQMX86 Watchdog Timer"
1466	depends on X86
1467	select WATCHDOG_CORE
1468	help
1469	This is the driver for the hardware watchdog timer in the TQMX86 IO
1470	controller found on some of their ComExpress Modules.
1471
1472	To compile this driver as a module, choose M here; the module
1473	will be called tqmx86_wdt.
1474
1475	Most people will say N.
1476
1477config VIA_WDT
1478	tristate "VIA Watchdog Timer"
1479	depends on X86 && PCI
1480	select WATCHDOG_CORE
1481	help
1482	This is the driver for the hardware watchdog timer on VIA
1483	southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1484
1485	To compile this driver as a module, choose M here; the module
1486	will be called via_wdt.
1487
1488	Most people will say N.
1489
1490config W83627HF_WDT
1491	tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1492	depends on X86
1493	select WATCHDOG_CORE
1494	help
1495	  This is the driver for the hardware watchdog on the following
1496	  Super I/O chips.
1497		W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1498		W83637HF
1499		W83667HG/HG-B
1500		W83687THF
1501		W83697HF
1502		W83697UG
1503		NCT6775
1504		NCT6776
1505		NCT6779
1506		NCT6791
1507		NCT6792
1508		NCT6102D/04D/06D
1509		NCT6116D
1510
1511	  This watchdog simply watches your kernel to make sure it doesn't
1512	  freeze, and if it does, it reboots your computer after a certain
1513	  amount of time.
1514
1515	  To compile this driver as a module, choose M here: the
1516	  module will be called w83627hf_wdt.
1517
1518	  Most people will say N.
1519
1520config W83877F_WDT
1521	tristate "W83877F (EMACS) Watchdog Timer"
1522	depends on X86
1523	help
1524	  This is the driver for the hardware watchdog on the W83877F chipset
1525	  as used in EMACS PC-104 motherboards (and likely others).  This
1526	  watchdog simply watches your kernel to make sure it doesn't freeze,
1527	  and if it does, it reboots your computer after a certain amount of
1528	  time.
1529
1530	  To compile this driver as a module, choose M here: the
1531	  module will be called w83877f_wdt.
1532
1533	  Most people will say N.
1534
1535config W83977F_WDT
1536	tristate "W83977F (PCM-5335) Watchdog Timer"
1537	depends on X86
1538	help
1539	  This is the driver for the hardware watchdog on the W83977F I/O chip
1540	  as used in AAEON's PCM-5335 SBC (and likely others).  This
1541	  watchdog simply watches your kernel to make sure it doesn't freeze,
1542	  and if it does, it reboots your computer after a certain amount of
1543	  time.
1544
1545	  To compile this driver as a module, choose M here: the
1546	  module will be called w83977f_wdt.
1547
1548config MACHZ_WDT
1549	tristate "ZF MachZ Watchdog"
1550	depends on X86
1551	help
1552	  If you are using a ZF Micro MachZ processor, say Y here, otherwise
1553	  N.  This is the driver for the watchdog timer built-in on that
1554	  processor using ZF-Logic interface.  This watchdog simply watches
1555	  your kernel to make sure it doesn't freeze, and if it does, it
1556	  reboots your computer after a certain amount of time.
1557
1558	  To compile this driver as a module, choose M here: the
1559	  module will be called machzwd.
1560
1561config SBC_EPX_C3_WATCHDOG
1562	tristate "Winsystems SBC EPX-C3 watchdog"
1563	depends on X86
1564	help
1565	  This is the driver for the built-in watchdog timer on the EPX-C3
1566	  Single-board computer made by Winsystems, Inc.
1567
1568	  *Note*: This hardware watchdog is not probeable and thus there
1569	  is no way to know if writing to its IO address will corrupt
1570	  your system or have any real effect.  The only way to be sure
1571	  that this driver does what you want is to make sure you
1572	  are running it on an EPX-C3 from Winsystems with the watchdog
1573	  timer at IO address 0x1ee and 0x1ef.  It will write to both those
1574	  IO ports.  Basically, the assumption is made that if you compile
1575	  this driver into your kernel and/or load it as a module, that you
1576	  know what you are doing and that you are in fact running on an
1577	  EPX-C3 board!
1578
1579	  To compile this driver as a module, choose M here: the
1580	  module will be called sbc_epx_c3.
1581
1582config INTEL_MEI_WDT
1583	tristate "Intel MEI iAMT Watchdog"
1584	depends on INTEL_MEI && X86
1585	select WATCHDOG_CORE
1586	help
1587	  A device driver for the Intel MEI iAMT watchdog.
1588
1589	  The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1590	  Whenever the OS hangs or crashes, iAMT will send an event
1591	  to any subscriber to this event. The watchdog doesn't reset the
1592	  the platform.
1593
1594	  To compile this driver as a module, choose M here:
1595	  the module will be called mei_wdt.
1596
1597config NI903X_WDT
1598	tristate "NI 903x/913x Watchdog"
1599	depends on X86 && ACPI
1600	select WATCHDOG_CORE
1601	help
1602	  This is the driver for the watchdog timer on the National Instruments
1603	  903x/913x real-time controllers.
1604
1605	  To compile this driver as a module, choose M here: the module will be
1606	  called ni903x_wdt.
1607
1608config NIC7018_WDT
1609	tristate "NIC7018 Watchdog"
1610	depends on X86 && ACPI
1611	select WATCHDOG_CORE
1612	help
1613	  Support for National Instruments NIC7018 Watchdog.
1614
1615	  To compile this driver as a module, choose M here: the module will be
1616	  called nic7018_wdt.
1617
1618# M68K Architecture
1619
1620config M54xx_WATCHDOG
1621	tristate "MCF54xx watchdog support"
1622	depends on M548x
1623	help
1624	  To compile this driver as a module, choose M here: the
1625	  module will be called m54xx_wdt.
1626
1627# MicroBlaze Architecture
1628
1629# MIPS Architecture
1630
1631config ATH79_WDT
1632	tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1633	depends on ATH79 || (ARM && COMPILE_TEST)
1634	help
1635	  Hardware driver for the built-in watchdog timer on the Atheros
1636	  AR71XX/AR724X/AR913X SoCs.
1637
1638config BCM47XX_WDT
1639	tristate "Broadcom BCM47xx Watchdog Timer"
1640	depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1641	select WATCHDOG_CORE
1642	help
1643	  Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1644
1645config RC32434_WDT
1646	tristate "IDT RC32434 SoC Watchdog Timer"
1647	depends on MIKROTIK_RB532
1648	help
1649	  Hardware driver for the IDT RC32434 SoC built-in
1650	  watchdog timer.
1651
1652	  To compile this driver as a module, choose M here: the
1653	  module will be called rc32434_wdt.
1654
1655config INDYDOG
1656	tristate "Indy/I2 Hardware Watchdog"
1657	depends on SGI_HAS_INDYDOG
1658	help
1659	  Hardware driver for the Indy's/I2's watchdog. This is a
1660	  watchdog timer that will reboot the machine after a 60 second
1661	  timer expired and no process has written to /dev/watchdog during
1662	  that time.
1663
1664config JZ4740_WDT
1665	tristate "Ingenic jz4740 SoC hardware watchdog"
1666	depends on MIPS
1667	depends on COMMON_CLK
1668	select WATCHDOG_CORE
1669	select MFD_SYSCON
1670	help
1671	  Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1672
1673config WDT_MTX1
1674	tristate "MTX-1 Hardware Watchdog"
1675	depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1676	help
1677	  Hardware driver for the MTX-1 boards. This is a watchdog timer that
1678	  will reboot the machine after a 100 seconds timer expired.
1679
1680config PNX833X_WDT
1681	tristate "PNX833x Hardware Watchdog"
1682	depends on SOC_PNX8335
1683	depends on BROKEN
1684	help
1685	  Hardware driver for the PNX833x's watchdog. This is a
1686	  watchdog timer that will reboot the machine after a programmable
1687	  timer has expired and no process has written to /dev/watchdog during
1688	  that time.
1689
1690config SIBYTE_WDOG
1691	tristate "Sibyte SoC hardware watchdog"
1692	depends on CPU_SB1 || (MIPS && COMPILE_TEST)
1693	help
1694	  Watchdog driver for the built in watchdog hardware in Sibyte
1695	  SoC processors.  There are apparently two watchdog timers
1696	  on such processors; this driver supports only the first one,
1697	  because currently Linux only supports exporting one watchdog
1698	  to userspace.
1699
1700	  To compile this driver as a loadable module, choose M here.
1701	  The module will be called sb_wdog.
1702
1703config AR7_WDT
1704	tristate "TI AR7 Watchdog Timer"
1705	depends on AR7 || (MIPS && COMPILE_TEST)
1706	help
1707	  Hardware driver for the TI AR7 Watchdog Timer.
1708
1709config TXX9_WDT
1710	tristate "Toshiba TXx9 Watchdog Timer"
1711	depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
1712	select WATCHDOG_CORE
1713	help
1714	  Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1715
1716config OCTEON_WDT
1717	tristate "Cavium OCTEON SOC family Watchdog Timer"
1718	depends on CAVIUM_OCTEON_SOC
1719	default y
1720	select WATCHDOG_CORE
1721	select EXPORT_UASM if OCTEON_WDT = m
1722	help
1723	  Hardware driver for OCTEON's on chip watchdog timer.
1724	  Enables the watchdog for all cores running Linux. It
1725	  installs a NMI handler and pokes the watchdog based on an
1726	  interrupt.  On first expiration of the watchdog, the
1727	  interrupt handler pokes it.  The second expiration causes an
1728	  NMI that prints a message. The third expiration causes a
1729	  global soft reset.
1730
1731	  When userspace has /dev/watchdog open, no poking is done
1732	  from the first interrupt, it is then only poked when the
1733	  device is written.
1734
1735config BCM63XX_WDT
1736	tristate "Broadcom BCM63xx hardware watchdog"
1737	depends on BCM63XX
1738	help
1739	  Watchdog driver for the built in watchdog hardware in Broadcom
1740	  BCM63xx SoC.
1741
1742	  To compile this driver as a loadable module, choose M here.
1743	  The module will be called bcm63xx_wdt.
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 "BCM7038 Watchdog"
1780	select WATCHDOG_CORE
1781	depends on HAS_IOMEM
1782	depends on ARCH_BRCMSTB || BMIPS_GENERIC || 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.
1788
1789config IMGPDC_WDT
1790	tristate "Imagination Technologies PDC Watchdog Timer"
1791	depends on HAS_IOMEM
1792	depends on MIPS || COMPILE_TEST
1793	select WATCHDOG_CORE
1794	help
1795	  Driver for Imagination Technologies PowerDown Controller
1796	  Watchdog Timer.
1797
1798	  To compile this driver as a loadable module, choose M here.
1799	  The module will be called imgpdc_wdt.
1800
1801config LANTIQ_WDT
1802	tristate "Lantiq SoC watchdog"
1803	depends on LANTIQ
1804	select WATCHDOG_CORE
1805	help
1806	  Hardware driver for the Lantiq SoC Watchdog Timer.
1807
1808config LOONGSON1_WDT
1809	tristate "Loongson1 SoC hardware watchdog"
1810	depends on MACH_LOONGSON32
1811	select WATCHDOG_CORE
1812	help
1813	  Hardware driver for the Loongson1 SoC Watchdog Timer.
1814
1815config RALINK_WDT
1816	tristate "Ralink SoC watchdog"
1817	select WATCHDOG_CORE
1818	depends on RALINK
1819	help
1820	  Hardware driver for the Ralink SoC Watchdog Timer.
1821
1822config MT7621_WDT
1823	tristate "Mediatek SoC watchdog"
1824	select WATCHDOG_CORE
1825	depends on SOC_MT7620 || SOC_MT7621
1826	help
1827	  Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1828
1829config PIC32_WDT
1830	tristate "Microchip PIC32 hardware watchdog"
1831	select WATCHDOG_CORE
1832	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1833	help
1834	  Watchdog driver for the built in watchdog hardware in a PIC32.
1835
1836	  Configuration bits must be set appropriately for the watchdog to be
1837	  controlled by this driver.
1838
1839	  To compile this driver as a loadable module, choose M here.
1840	  The module will be called pic32-wdt.
1841
1842config PIC32_DMT
1843	tristate "Microchip PIC32 Deadman Timer"
1844	select WATCHDOG_CORE
1845	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1846	help
1847	  Watchdog driver for PIC32 instruction fetch counting timer. This specific
1848	  timer is typically be used in misson critical and safety critical
1849	  applications, where any single failure of the software functionality
1850	  and sequencing must be detected.
1851
1852	  To compile this driver as a loadable module, choose M here.
1853	  The module will be called pic32-dmt.
1854
1855# PARISC Architecture
1856
1857# POWERPC Architecture
1858
1859config GEF_WDT
1860	tristate "GE Watchdog Timer"
1861	depends on GE_FPGA
1862	help
1863	  Watchdog timer found in a number of GE single board computers.
1864
1865config MPC5200_WDT
1866	bool "MPC52xx Watchdog Timer"
1867	depends on PPC_MPC52xx || COMPILE_TEST
1868	help
1869	  Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1870
1871config 8xxx_WDT
1872	tristate "MPC8xxx Platform Watchdog Timer"
1873	depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1874	select WATCHDOG_CORE
1875	help
1876	  This driver is for a SoC level watchdog that exists on some
1877	  Freescale PowerPC processors. So far this driver supports:
1878	  - MPC8xx watchdogs
1879	  - MPC83xx watchdogs
1880	  - MPC86xx watchdogs
1881
1882	  For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1883
1884config MV64X60_WDT
1885	tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1886	depends on MV64X60 || COMPILE_TEST
1887
1888config PIKA_WDT
1889	tristate "PIKA FPGA Watchdog"
1890	depends on WARP || (PPC64 && COMPILE_TEST)
1891	default y
1892	help
1893	  This enables the watchdog in the PIKA FPGA. Currently used on
1894	  the Warp platform.
1895
1896config BOOKE_WDT
1897	tristate "PowerPC Book-E Watchdog Timer"
1898	depends on BOOKE || 4xx
1899	select WATCHDOG_CORE
1900	help
1901	  Watchdog driver for PowerPC Book-E chips, such as the Freescale
1902	  MPC85xx SOCs and the IBM PowerPC 440.
1903
1904	  Please see Documentation/watchdog/watchdog-api.rst for
1905	  more information.
1906
1907config BOOKE_WDT_DEFAULT_TIMEOUT
1908	int "PowerPC Book-E Watchdog Timer Default Timeout"
1909	depends on BOOKE_WDT
1910	default 38 if PPC_FSL_BOOK3E
1911	range 0 63 if PPC_FSL_BOOK3E
1912	default 3 if !PPC_FSL_BOOK3E
1913	range 0 3 if !PPC_FSL_BOOK3E
1914	help
1915	  Select the default watchdog timer period to be used by the PowerPC
1916	  Book-E watchdog driver.  A watchdog "event" occurs when the bit
1917	  position represented by this number transitions from zero to one.
1918
1919	  For Freescale Book-E processors, this is a number between 0 and 63.
1920	  For other Book-E processors, this is a number between 0 and 3.
1921
1922	  The value can be overridden by the wdt_period command-line parameter.
1923
1924config MEN_A21_WDT
1925	tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1926	select WATCHDOG_CORE
1927	depends on GPIOLIB || COMPILE_TEST
1928	help
1929	  Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1930
1931	  The driver can also be built as a module. If so, the module will be
1932	  called mena21_wdt.
1933
1934	  If unsure select N here.
1935
1936# PPC64 Architecture
1937
1938config WATCHDOG_RTAS
1939	tristate "RTAS watchdog"
1940	depends on PPC_RTAS
1941	help
1942	  This driver adds watchdog support for the RTAS watchdog.
1943
1944	  To compile this driver as a module, choose M here. The module
1945	  will be called wdrtas.
1946
1947# S390 Architecture
1948
1949config DIAG288_WATCHDOG
1950	tristate "System z diag288 Watchdog"
1951	depends on S390
1952	select WATCHDOG_CORE
1953	help
1954	  IBM s/390 and zSeries machines running under z/VM 5.1 or later
1955	  provide a virtual watchdog timer to their guest that cause a
1956	  user define Control Program command to be executed after a
1957	  timeout.
1958	  LPAR provides a very similar interface. This driver handles
1959	  both.
1960
1961	  To compile this driver as a module, choose M here. The module
1962	  will be called diag288_wdt.
1963
1964# SUPERH (sh + sh64) Architecture
1965
1966config SH_WDT
1967	tristate "SuperH Watchdog"
1968	depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1969	select WATCHDOG_CORE
1970	help
1971	  This driver adds watchdog support for the integrated watchdog in the
1972	  SuperH processors. If you have one of these processors and wish
1973	  to have watchdog support enabled, say Y, otherwise say N.
1974
1975	  As a side note, saying Y here will automatically boost HZ to 1000
1976	  so that the timer has a chance to clear the overflow counter. On
1977	  slower systems (such as the SH-2 and SH-3) this will likely yield
1978	  some performance issues. As such, the WDT should be avoided here
1979	  unless it is absolutely necessary.
1980
1981	  To compile this driver as a module, choose M here: the
1982	  module will be called shwdt.
1983
1984# SPARC Architecture
1985
1986# SPARC64 Architecture
1987
1988config WATCHDOG_CP1XXX
1989	tristate "CP1XXX Hardware Watchdog support"
1990	depends on SPARC64 && PCI
1991	help
1992	  This is the driver for the hardware watchdog timers present on
1993	  Sun Microsystems CompactPCI models CP1400 and CP1500.
1994
1995	  To compile this driver as a module, choose M here: the
1996	  module will be called cpwatchdog.
1997
1998	  If you do not have a CompactPCI model CP1400 or CP1500, or
1999	  another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
2000	  you should say N to this option.
2001
2002config WATCHDOG_RIO
2003	tristate "RIO Hardware Watchdog support"
2004	depends on SPARC64 && PCI
2005	help
2006	  Say Y here to support the hardware watchdog capability on Sun RIO
2007	  machines.  The watchdog timeout period is normally one minute but
2008	  can be changed with a boot-time parameter.
2009
2010config WATCHDOG_SUN4V
2011	tristate "Sun4v Watchdog support"
2012	select WATCHDOG_CORE
2013	depends on SPARC64
2014	help
2015	  Say Y here to support the hypervisor watchdog capability embedded
2016	  in the SPARC sun4v architecture.
2017
2018	  To compile this driver as a module, choose M here. The module will
2019	  be called sun4v_wdt.
2020
2021# XTENSA Architecture
2022
2023# Xen Architecture
2024
2025config XEN_WDT
2026	tristate "Xen Watchdog support"
2027	depends on XEN
2028	select WATCHDOG_CORE
2029	help
2030	  Say Y here to support the hypervisor watchdog capability provided
2031	  by Xen 4.0 and newer.  The watchdog timeout period is normally one
2032	  minute but can be changed with a boot-time parameter.
2033
2034config UML_WATCHDOG
2035	tristate "UML watchdog"
2036	depends on UML || COMPILE_TEST
2037
2038#
2039# ISA-based Watchdog Cards
2040#
2041
2042comment "ISA-based Watchdog Cards"
2043	depends on ISA
2044
2045config PCWATCHDOG
2046	tristate "Berkshire Products ISA-PC Watchdog"
2047	depends on ISA
2048	help
2049	  This is the driver for the Berkshire Products ISA-PC Watchdog card.
2050	  This card simply watches your kernel to make sure it doesn't freeze,
2051	  and if it does, it reboots your computer after a certain amount of
2052	  time. This driver is like the WDT501 driver but for different
2053	  hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. The PC
2054	  watchdog cards can be ordered from <http://www.berkprod.com/>.
2055
2056	  To compile this driver as a module, choose M here: the
2057	  module will be called pcwd.
2058
2059	  Most people will say N.
2060
2061config MIXCOMWD
2062	tristate "Mixcom Watchdog"
2063	depends on ISA
2064	help
2065	  This is a driver for the Mixcom hardware watchdog cards.  This
2066	  watchdog simply watches your kernel to make sure it doesn't freeze,
2067	  and if it does, it reboots your computer after a certain amount of
2068	  time.
2069
2070	  To compile this driver as a module, choose M here: the
2071	  module will be called mixcomwd.
2072
2073	  Most people will say N.
2074
2075config WDT
2076	tristate "WDT Watchdog timer"
2077	depends on ISA
2078	help
2079	  If you have a WDT500P or WDT501P watchdog board, say Y here,
2080	  otherwise N. It is not possible to probe for this board, which means
2081	  that you have to inform the kernel about the IO port and IRQ that
2082	  is needed (you can do this via the io and irq parameters)
2083
2084	  To compile this driver as a module, choose M here: the
2085	  module will be called wdt.
2086
2087#
2088# PCI-based Watchdog Cards
2089#
2090
2091comment "PCI-based Watchdog Cards"
2092	depends on PCI
2093
2094config PCIPCWATCHDOG
2095	tristate "Berkshire Products PCI-PC Watchdog"
2096	depends on PCI
2097	help
2098	  This is the driver for the Berkshire Products PCI-PC Watchdog card.
2099	  This card simply watches your kernel to make sure it doesn't freeze,
2100	  and if it does, it reboots your computer after a certain amount of
2101	  time. The card can also monitor the internal temperature of the PC.
2102	  More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2103
2104	  To compile this driver as a module, choose M here: the
2105	  module will be called pcwd_pci.
2106
2107	  Most people will say N.
2108
2109config WDTPCI
2110	tristate "PCI-WDT500/501 Watchdog timer"
2111	depends on PCI
2112	help
2113	  If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2114
2115	  If you have a PCI-WDT501 watchdog board then you can enable the
2116	  temperature sensor by setting the type parameter to 501.
2117
2118	  If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2119	  can do this via the tachometer parameter. Only do this if you have a
2120	  fan tachometer actually set up.
2121
2122	  To compile this driver as a module, choose M here: the
2123	  module will be called wdt_pci.
2124
2125#
2126# USB-based Watchdog Cards
2127#
2128
2129comment "USB-based Watchdog Cards"
2130	depends on USB
2131
2132config USBPCWATCHDOG
2133	tristate "Berkshire Products USB-PC Watchdog"
2134	depends on USB
2135	help
2136	  This is the driver for the Berkshire Products USB-PC Watchdog card.
2137	  This card simply watches your kernel to make sure it doesn't freeze,
2138	  and if it does, it reboots your computer after a certain amount of
2139	  time. The card can also monitor the internal temperature of the PC.
2140	  More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2141
2142	  To compile this driver as a module, choose M here: the
2143	  module will be called pcwd_usb.
2144
2145	  Most people will say N.
2146
2147endif # WATCHDOG
2148