xref: /linux/drivers/watchdog/Kconfig (revision c80e42a4963b3f593d53fb8f565e5bbca61a6531)
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
343config SL28CPLD_WATCHDOG
344	tristate "Kontron sl28cpld Watchdog"
345	depends on MFD_SL28CPLD || COMPILE_TEST
346	select WATCHDOG_CORE
347	help
348	  Say Y here to include support for the watchdog timer
349	  on the Kontron sl28 CPLD.
350
351	  To compile this driver as a module, choose M here: the
352	  module will be called sl28cpld_wdt.
353
354# ALPHA Architecture
355
356# ARM Architecture
357
358config ARM_SP805_WATCHDOG
359	tristate "ARM SP805 Watchdog"
360	depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
361	select WATCHDOG_CORE
362	help
363	  ARM Primecell SP805 Watchdog timer. This will reboot your system when
364	  the timeout is reached.
365
366config ARM_SBSA_WATCHDOG
367	tristate "ARM SBSA Generic Watchdog"
368	depends on ARM64
369	depends on ARM_ARCH_TIMER
370	select WATCHDOG_CORE
371	help
372	  ARM SBSA Generic Watchdog has two stage timeouts:
373	  the first signal (WS0) is for alerting the system by interrupt,
374	  the second one (WS1) is a real hardware reset.
375	  More details: ARM DEN0029B - Server Base System Architecture (SBSA)
376
377	  This driver can operate ARM SBSA Generic Watchdog as a single stage
378	  or a two stages watchdog, it depends on the module parameter "action".
379
380	  Note: the maximum timeout in the two stages mode is half of that in
381	  the single stage mode.
382
383	  To compile this driver as module, choose M here: The module
384	  will be called sbsa_gwdt.
385
386config ARMADA_37XX_WATCHDOG
387	tristate "Armada 37xx watchdog"
388	depends on ARCH_MVEBU || COMPILE_TEST
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 reboot your
405	  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	help
480	  Say Y here if to include support for the watchdog timer
481	  in the Intel IXP4xx network processors. This driver can
482	  be built as a module by choosing M. The module will
483	  be called ixp4xx_wdt.
484
485	  Note: The internal IXP4xx watchdog does a soft CPU reset
486	  which doesn't reset any peripherals. There are circumstances
487	  where the watchdog will fail to reset the board correctly
488	  (e.g., if the boot ROM is in an unreadable state).
489
490	  Say N if you are unsure.
491
492config HAVE_S3C2410_WATCHDOG
493	bool
494	help
495	  This will include watchdog timer support for Samsung SoCs. If
496	  you want to include watchdog support for any machine, kindly
497	  select this in the respective mach-XXXX/Kconfig file.
498
499config S3C2410_WATCHDOG
500	tristate "S3C2410 Watchdog"
501	depends on HAVE_S3C2410_WATCHDOG || COMPILE_TEST
502	select WATCHDOG_CORE
503	select MFD_SYSCON if ARCH_EXYNOS
504	help
505	  Watchdog timer block in the Samsung SoCs. This will reboot
506	  the system when the timer expires with the watchdog enabled.
507
508	  The driver is limited by the speed of the system's PCLK
509	  signal, so with reasonably fast systems (PCLK around 50-66MHz)
510	  then watchdog intervals of over approximately 20seconds are
511	  unavailable.
512
513	  The driver can be built as a module by choosing M, and will
514	  be called s3c2410_wdt
515
516config SA1100_WATCHDOG
517	tristate "SA1100/PXA2xx watchdog"
518	depends on ARCH_SA1100 || ARCH_PXA
519	help
520	  Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
521	  reboot your system when timeout is reached.
522
523	  NOTE: once enabled, this timer cannot be disabled.
524
525	  To compile this driver as a module, choose M here: the
526	  module will be called sa1100_wdt.
527
528config DW_WATCHDOG
529	tristate "Synopsys DesignWare watchdog"
530	depends on HAS_IOMEM
531	select WATCHDOG_CORE
532	help
533	  Say Y here if to include support for the Synopsys DesignWare
534	  watchdog timer found in many chips.
535	  To compile this driver as a module, choose M here: the
536	  module will be called dw_wdt.
537
538config EP93XX_WATCHDOG
539	tristate "EP93xx Watchdog"
540	depends on ARCH_EP93XX || COMPILE_TEST
541	select WATCHDOG_CORE
542	help
543	  Say Y here if to include support for the watchdog timer
544	  embedded in the Cirrus Logic EP93xx family of devices.
545
546	  To compile this driver as a module, choose M here: the
547	  module will be called ep93xx_wdt.
548
549config OMAP_WATCHDOG
550	tristate "OMAP Watchdog"
551	depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
552	select WATCHDOG_CORE
553	help
554	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.  Say 'Y'
555	  here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
556
557config PNX4008_WATCHDOG
558	tristate "LPC32XX Watchdog"
559	depends on ARCH_LPC32XX || COMPILE_TEST
560	select WATCHDOG_CORE
561	help
562	  Say Y here if to include support for the watchdog timer
563	  in the LPC32XX processor.
564	  This driver can be built as a module by choosing M. The module
565	  will be called pnx4008_wdt.
566
567	  Say N if you are unsure.
568
569config IOP_WATCHDOG
570	tristate "IOP Watchdog"
571	depends on ARCH_IOP13XX
572	select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
573	help
574	  Say Y here if to include support for the watchdog timer
575	  in the Intel IOP3XX & IOP13XX I/O Processors.  This driver can
576	  be built as a module by choosing M. The module will
577	  be called iop_wdt.
578
579	  Note: The IOP13XX watchdog does an Internal Bus Reset which will
580	  affect both cores and the peripherals of the IOP.  The ATU-X
581	  and/or ATUe configuration registers will remain intact, but if
582	  operating as an Root Complex and/or Central Resource, the PCI-X
583	  and/or PCIe busses will also be reset.  THIS IS A VERY BIG HAMMER.
584
585config DAVINCI_WATCHDOG
586	tristate "DaVinci watchdog"
587	depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
588	select WATCHDOG_CORE
589	help
590	  Say Y here if to include support for the watchdog timer
591	  in the DaVinci DM644x/DM646x or Keystone processors.
592	  To compile this driver as a module, choose M here: the
593	  module will be called davinci_wdt.
594
595	  NOTE: once enabled, this timer cannot be disabled.
596	  Say N if you are unsure.
597
598config K3_RTI_WATCHDOG
599	tristate "Texas Instruments K3 RTI watchdog"
600	depends on ARCH_K3 || COMPILE_TEST
601	select WATCHDOG_CORE
602	help
603	  Say Y here if you want to include support for the K3 watchdog
604	  timer (RTI module) available in the K3 generation of processors.
605
606config ORION_WATCHDOG
607	tristate "Orion watchdog"
608	depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || (COMPILE_TEST && !ARCH_EBSA110)
609	depends on ARM
610	select WATCHDOG_CORE
611	help
612	  Say Y here if to include support for the watchdog timer
613	  in the Marvell Orion5x and Kirkwood ARM SoCs.
614	  To compile this driver as a module, choose M here: the
615	  module will be called orion_wdt.
616
617config RN5T618_WATCHDOG
618	tristate "Ricoh RN5T618 watchdog"
619	depends on MFD_RN5T618 || COMPILE_TEST
620	select WATCHDOG_CORE
621	help
622	  If you say yes here you get support for watchdog on the Ricoh
623	  RN5T618 PMIC.
624
625	  This driver can also be built as a module.  If so, the module
626	  will be called rn5t618_wdt.
627
628config SUNXI_WATCHDOG
629	tristate "Allwinner SoCs watchdog support"
630	depends on ARCH_SUNXI || COMPILE_TEST
631	select WATCHDOG_CORE
632	help
633	  Say Y here to include support for the watchdog timer
634	  in Allwinner SoCs.
635	  To compile this driver as a module, choose M here: the
636	  module will be called sunxi_wdt.
637
638config COH901327_WATCHDOG
639	bool "ST-Ericsson COH 901 327 watchdog"
640	depends on ARCH_U300 || (ARM && COMPILE_TEST)
641	default y if MACH_U300
642	select WATCHDOG_CORE
643	help
644	  Say Y here to include Watchdog timer support for the
645	  watchdog embedded into the ST-Ericsson U300 series platforms.
646	  This watchdog is used to reset the system and thus cannot be
647	  compiled as a module.
648
649config NPCM7XX_WATCHDOG
650	tristate "Nuvoton NPCM750 watchdog"
651	depends on ARCH_NPCM || COMPILE_TEST
652	default y if ARCH_NPCM7XX
653	select WATCHDOG_CORE
654	help
655	  Say Y here to include Watchdog timer support for the
656	  watchdog embedded into the NPCM7xx.
657	  This watchdog is used to reset the system and thus cannot be
658	  compiled as a module.
659
660config TWL4030_WATCHDOG
661	tristate "TWL4030 Watchdog"
662	depends on TWL4030_CORE
663	select WATCHDOG_CORE
664	help
665	  Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
666	  watchdog timer support for TWL4030 chips.
667
668config STMP3XXX_RTC_WATCHDOG
669	tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
670	depends on RTC_DRV_STMP || COMPILE_TEST
671	select WATCHDOG_CORE
672	help
673	  Say Y here to include support for the watchdog timer inside
674	  the RTC for the STMP37XX/378X or i.MX23/28 SoC.
675	  To compile this driver as a module, choose M here: the
676	  module will be called stmp3xxx_rtc_wdt.
677
678config TS4800_WATCHDOG
679	tristate "TS-4800 Watchdog"
680	depends on HAS_IOMEM && OF
681	depends on SOC_IMX51 || COMPILE_TEST
682	select WATCHDOG_CORE
683	select MFD_SYSCON
684	help
685	  Technologic Systems TS-4800 has watchdog timer implemented in
686	  an external FPGA. Say Y here if you want to support for the
687	  watchdog timer on TS-4800 board.
688
689config TS72XX_WATCHDOG
690	tristate "TS-72XX SBC Watchdog"
691	depends on MACH_TS72XX || COMPILE_TEST
692	select WATCHDOG_CORE
693	help
694	  Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
695	  watchdog timer implemented in a external CPLD chip. Say Y here
696	  if you want to support for the watchdog timer on TS-72XX boards.
697
698	  To compile this driver as a module, choose M here: the
699	  module will be called ts72xx_wdt.
700
701config MAX63XX_WATCHDOG
702	tristate "Max63xx watchdog"
703	depends on HAS_IOMEM
704	select WATCHDOG_CORE
705	help
706	  Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
707
708config MAX77620_WATCHDOG
709	tristate "Maxim Max77620 Watchdog Timer"
710	depends on MFD_MAX77620 || COMPILE_TEST
711	select WATCHDOG_CORE
712	help
713	 This is the driver for the Max77620 watchdog timer.
714	 Say 'Y' here to enable the watchdog timer support for
715	 MAX77620 chips. To compile this driver as a module,
716	 choose M here: the module will be called max77620_wdt.
717
718config IMX2_WDT
719	tristate "IMX2+ Watchdog"
720	depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
721	select REGMAP_MMIO
722	select WATCHDOG_CORE
723	help
724	  This is the driver for the hardware watchdog
725	  on the Freescale IMX2 and later processors.
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 imx2_wdt.
731
732config IMX_SC_WDT
733	tristate "IMX SC Watchdog"
734	depends on HAVE_ARM_SMCCC
735	depends on IMX_SCU
736	select WATCHDOG_CORE
737	help
738	  This is the driver for the system controller watchdog
739	  on the NXP i.MX SoCs with system controller inside, the
740	  watchdog driver will call ARM SMC API and trap into
741	  ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
742	  will request system controller to execute the operations.
743	  If you have one of these processors and wish to have
744	  watchdog support enabled, say Y, otherwise say N.
745
746	  To compile this driver as a module, choose M here: the
747	  module will be called imx_sc_wdt.
748
749config IMX7ULP_WDT
750	tristate "IMX7ULP Watchdog"
751	depends on ARCH_MXC || COMPILE_TEST
752	select WATCHDOG_CORE
753	help
754	  This is the driver for the hardware watchdog on the Freescale
755	  IMX7ULP and later processors. If you have one of these
756	  processors and wish to have watchdog support enabled,
757	  say Y, otherwise say N.
758
759	  To compile this driver as a module, choose M here: the
760	  module will be called imx7ulp_wdt.
761
762config UX500_WATCHDOG
763	tristate "ST-Ericsson Ux500 watchdog"
764	depends on MFD_DB8500_PRCMU
765	select WATCHDOG_CORE
766	default y
767	help
768	  Say Y here to include Watchdog timer support for the watchdog
769	  existing in the prcmu of ST-Ericsson Ux500 series platforms.
770
771	  To compile this driver as a module, choose M here: the
772	  module will be called ux500_wdt.
773
774config RETU_WATCHDOG
775	tristate "Retu watchdog"
776	depends on MFD_RETU
777	select WATCHDOG_CORE
778	help
779	  Retu watchdog driver for Nokia Internet Tablets (770, N800,
780	  N810). At least on N800 the watchdog cannot be disabled, so
781	  this driver is essential and you should enable it.
782
783	  To compile this driver as a module, choose M here: the
784	  module will be called retu_wdt.
785
786config MOXART_WDT
787	tristate "MOXART watchdog"
788	depends on ARCH_MOXART || COMPILE_TEST
789	help
790	  Say Y here to include Watchdog timer support for the watchdog
791	  existing on the MOXA ART SoC series platforms.
792
793	  To compile this driver as a module, choose M here: the
794	  module will be called moxart_wdt.
795
796config SIRFSOC_WATCHDOG
797	tristate "SiRFSOC watchdog"
798	depends on ARCH_SIRF || COMPILE_TEST
799	select WATCHDOG_CORE
800	default y
801	help
802	  Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
803	  the watchdog triggers the system will be reset.
804
805config ST_LPC_WATCHDOG
806	tristate "STMicroelectronics LPC Watchdog"
807	depends on ARCH_STI || COMPILE_TEST
808	depends on OF
809	select WATCHDOG_CORE
810	help
811	  Say Y here to include STMicroelectronics Low Power Controller
812	  (LPC) based Watchdog timer support.
813
814	  To compile this driver as a module, choose M here: the
815	  module will be called st_lpc_wdt.
816
817config TEGRA_WATCHDOG
818	tristate "Tegra watchdog"
819	depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
820	select WATCHDOG_CORE
821	help
822	  Say Y here to include support for the watchdog timer
823	  embedded in NVIDIA Tegra SoCs.
824
825	  To compile this driver as a module, choose M here: the
826	  module will be called tegra_wdt.
827
828config QCOM_WDT
829	tristate "QCOM watchdog"
830	depends on HAS_IOMEM
831	depends on ARCH_QCOM || COMPILE_TEST
832	select WATCHDOG_CORE
833	help
834	  Say Y here to include Watchdog timer support for the watchdog found
835	  on QCOM chipsets.  Currently supported targets are the MSM8960,
836	  APQ8064, and IPQ8064.
837
838	  To compile this driver as a module, choose M here: the
839	  module will be called qcom_wdt.
840
841config MESON_GXBB_WATCHDOG
842	tristate "Amlogic Meson GXBB SoCs watchdog support"
843	depends on ARCH_MESON || COMPILE_TEST
844	select WATCHDOG_CORE
845	help
846	  Say Y here to include support for the watchdog timer
847	  in Amlogic Meson GXBB SoCs.
848	  To compile this driver as a module, choose M here: the
849	  module will be called meson_gxbb_wdt.
850
851config MESON_WATCHDOG
852	tristate "Amlogic Meson SoCs watchdog support"
853	depends on ARCH_MESON || COMPILE_TEST
854	select WATCHDOG_CORE
855	help
856	  Say Y here to include support for the watchdog timer
857	  in Amlogic Meson SoCs.
858	  To compile this driver as a module, choose M here: the
859	  module will be called meson_wdt.
860
861config MEDIATEK_WATCHDOG
862	tristate "Mediatek SoCs watchdog support"
863	depends on ARCH_MEDIATEK || COMPILE_TEST
864	select WATCHDOG_CORE
865	select RESET_CONTROLLER
866	help
867	  Say Y here to include support for the watchdog timer
868	  in Mediatek SoCs.
869	  To compile this driver as a module, choose M here: the
870	  module will be called mtk_wdt.
871
872config DIGICOLOR_WATCHDOG
873	tristate "Conexant Digicolor SoCs watchdog support"
874	depends on ARCH_DIGICOLOR || COMPILE_TEST
875	select WATCHDOG_CORE
876	help
877	  Say Y here to include support for the watchdog timer
878	  in Conexant Digicolor SoCs.
879	  To compile this driver as a module, choose M here: the
880	  module will be called digicolor_wdt.
881
882config ARM_SMC_WATCHDOG
883	tristate "ARM Secure Monitor Call based watchdog support"
884	depends on ARM || ARM64
885	depends on OF
886	depends on HAVE_ARM_SMCCC
887	select WATCHDOG_CORE
888	help
889	  Say Y here to include support for a watchdog timer
890	  implemented by the EL3 Secure Monitor on ARM platforms.
891	  Requires firmware support.
892	  To compile this driver as a module, choose M here: the
893	  module will be called arm_smc_wdt.
894
895config LPC18XX_WATCHDOG
896	tristate "LPC18xx/43xx Watchdog"
897	depends on ARCH_LPC18XX || COMPILE_TEST
898	depends on HAS_IOMEM
899	select WATCHDOG_CORE
900	help
901	  Say Y here if to include support for the watchdog timer
902	  in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
903	  processors.
904	  To compile this driver as a module, choose M here: the
905	  module will be called lpc18xx_wdt.
906
907config ATLAS7_WATCHDOG
908	tristate "CSRatlas7 watchdog"
909	depends on ARCH_ATLAS7 || COMPILE_TEST
910	help
911	  Say Y here to include Watchdog timer support for the watchdog
912	  existing on the CSRatlas7 series platforms.
913
914	  To compile this driver as a module, choose M here: the
915	  module will be called atlas7_wdt.
916
917config RENESAS_WDT
918	tristate "Renesas WDT Watchdog"
919	depends on ARCH_RENESAS || COMPILE_TEST
920	select WATCHDOG_CORE
921	help
922	  This driver adds watchdog support for the integrated watchdogs in the
923	  Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
924
925config RENESAS_RZAWDT
926	tristate "Renesas RZ/A WDT Watchdog"
927	depends on ARCH_RENESAS || COMPILE_TEST
928	select WATCHDOG_CORE
929	help
930	  This driver adds watchdog support for the integrated watchdogs in the
931	  Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
932
933config ASPEED_WATCHDOG
934	tristate "Aspeed BMC watchdog support"
935	depends on ARCH_ASPEED || COMPILE_TEST
936	select WATCHDOG_CORE
937	help
938	  Say Y here to include support for the watchdog timer
939	  in Aspeed BMC SoCs.
940
941	  This driver is required to reboot the SoC.
942
943	  To compile this driver as a module, choose M here: the
944	  module will be called aspeed_wdt.
945
946config ZX2967_WATCHDOG
947	tristate "ZTE zx2967 SoCs watchdog support"
948	depends on ARCH_ZX
949	select WATCHDOG_CORE
950	help
951	  Say Y here to include support for the watchdog timer
952	  in ZTE zx2967 SoCs.
953	  To compile this driver as a module, choose M here: the
954	  module will be called zx2967_wdt.
955
956config STM32_WATCHDOG
957	tristate "STM32 Independent WatchDoG (IWDG) support"
958	depends on ARCH_STM32
959	select WATCHDOG_CORE
960	default y
961	help
962	  Say Y here to include support for the watchdog timer
963	  in stm32 SoCs.
964
965	  To compile this driver as a module, choose M here: the
966	  module will be called stm32_iwdg.
967
968config STPMIC1_WATCHDOG
969	tristate "STPMIC1 PMIC watchdog support"
970	depends on MFD_STPMIC1
971	select WATCHDOG_CORE
972	help
973	  Say Y here to include watchdog support embedded into STPMIC1 PMIC.
974	  If the watchdog timer expires, stpmic1 will shut down all its power
975	  supplies.
976
977	  To compile this driver as a module, choose M here: the
978	  module will be called spmic1_wdt.
979
980config UNIPHIER_WATCHDOG
981	tristate "UniPhier watchdog support"
982	depends on ARCH_UNIPHIER || COMPILE_TEST
983	depends on OF && MFD_SYSCON
984	select WATCHDOG_CORE
985	help
986	  Say Y here to include support watchdog timer embedded
987	  into the UniPhier system.
988
989	  To compile this driver as a module, choose M here: the
990	  module will be called uniphier_wdt.
991
992config RTD119X_WATCHDOG
993	bool "Realtek RTD119x/RTD129x watchdog support"
994	depends on ARCH_REALTEK || COMPILE_TEST
995	depends on OF
996	select WATCHDOG_CORE
997	default ARCH_REALTEK
998	help
999	  Say Y here to include support for the watchdog timer in
1000	  Realtek RTD1295 SoCs.
1001
1002config SPRD_WATCHDOG
1003	tristate "Spreadtrum watchdog support"
1004	depends on ARCH_SPRD || COMPILE_TEST
1005	select WATCHDOG_CORE
1006	help
1007	  Say Y here to include watchdog timer supported
1008	  by Spreadtrum system.
1009
1010config PM8916_WATCHDOG
1011	tristate "QCOM PM8916 pmic watchdog"
1012	depends on OF && MFD_SPMI_PMIC
1013	select WATCHDOG_CORE
1014	help
1015	  Say Y here to include support watchdog timer embedded into the
1016	  pm8916 module.
1017
1018config VISCONTI_WATCHDOG
1019	tristate "Toshiba Visconti series watchdog support"
1020	depends on ARCH_VISCONTI || COMPILE_TEST
1021	select WATCHDOG_CORE
1022	help
1023	  Say Y here to include support for the watchdog timer in Toshiba
1024	  Visconti SoCs.
1025
1026# X86 (i386 + ia64 + x86_64) Architecture
1027
1028config ACQUIRE_WDT
1029	tristate "Acquire SBC Watchdog Timer"
1030	depends on X86
1031	help
1032	  This is the driver for the hardware watchdog on Single Board
1033	  Computers produced by Acquire Inc (and others). This watchdog
1034	  simply watches your kernel to make sure it doesn't freeze, and if
1035	  it does, it reboots your computer after a certain amount of time.
1036
1037	  To compile this driver as a module, choose M here: the
1038	  module will be called acquirewdt.
1039
1040	  Most people will say N.
1041
1042config ADVANTECH_WDT
1043	tristate "Advantech SBC Watchdog Timer"
1044	depends on X86
1045	help
1046	  If you are configuring a Linux kernel for the Advantech single-board
1047	  computer, say `Y' here to support its built-in watchdog timer
1048	  feature. More information can be found at
1049	  <https://www.advantech.com.tw/products/>
1050
1051config ALIM1535_WDT
1052	tristate "ALi M1535 PMU Watchdog Timer"
1053	depends on X86 && PCI
1054	help
1055	  This is the driver for the hardware watchdog on the ALi M1535 PMU.
1056
1057	  To compile this driver as a module, choose M here: the
1058	  module will be called alim1535_wdt.
1059
1060	  Most people will say N.
1061
1062config ALIM7101_WDT
1063	tristate "ALi M7101 PMU Computer Watchdog"
1064	depends on PCI
1065	help
1066	  This is the driver for the hardware watchdog on the ALi M7101 PMU
1067	  as used in the x86 Cobalt servers and also found in some
1068	  SPARC Netra servers too.
1069
1070	  To compile this driver as a module, choose M here: the
1071	  module will be called alim7101_wdt.
1072
1073	  Most people will say N.
1074
1075config EBC_C384_WDT
1076	tristate "WinSystems EBC-C384 Watchdog Timer"
1077	depends on X86
1078	select ISA_BUS_API
1079	select WATCHDOG_CORE
1080	help
1081	  Enables watchdog timer support for the watchdog timer on the
1082	  WinSystems EBC-C384 motherboard. The timeout may be configured via
1083	  the timeout module parameter.
1084
1085config F71808E_WDT
1086	tristate "Fintek F718xx, F818xx Super I/O Watchdog"
1087	depends on X86
1088	help
1089	  This is the driver for the hardware watchdog on the Fintek F71808E,
1090	  F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and
1091	  F81866 Super I/O controllers.
1092
1093	  You can compile this driver directly into the kernel, or use
1094	  it as a module.  The module will be called f71808e_wdt.
1095
1096config SP5100_TCO
1097	tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
1098	depends on X86 && PCI
1099	select WATCHDOG_CORE
1100	help
1101	  Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
1102	  (Total Cost of Ownership) timer is a watchdog timer that will reboot
1103	  the machine after its expiration. The expiration time can be
1104	  configured with the "heartbeat" parameter.
1105
1106	  To compile this driver as a module, choose M here: the
1107	  module will be called sp5100_tco.
1108
1109config GEODE_WDT
1110	tristate "AMD Geode CS5535/CS5536 Watchdog"
1111	depends on CS5535_MFGPT
1112	help
1113	  This driver enables a watchdog capability built into the
1114	  CS5535/CS5536 companion chips for the AMD Geode GX and LX
1115	  processors.  This watchdog watches your kernel to make sure
1116	  it doesn't freeze, and if it does, it reboots your computer after
1117	  a certain amount of time.
1118
1119	  You can compile this driver directly into the kernel, or use
1120	  it as a module.  The module will be called geodewdt.
1121
1122config SC520_WDT
1123	tristate "AMD Elan SC520 processor Watchdog"
1124	depends on MELAN || COMPILE_TEST
1125	help
1126	  This is the driver for the hardware watchdog built in to the
1127	  AMD "Elan" SC520 microcomputer commonly used in embedded systems.
1128	  This watchdog simply watches your kernel to make sure it doesn't
1129	  freeze, and if it does, it reboots your computer after a certain
1130	  amount of time.
1131
1132	  You can compile this driver directly into the kernel, or use
1133	  it as a module.  The module will be called sc520_wdt.
1134
1135config SBC_FITPC2_WATCHDOG
1136	tristate "Compulab SBC-FITPC2 watchdog"
1137	depends on X86
1138	help
1139	  This is the driver for the built-in watchdog timer on the fit-PC2,
1140	  fit-PC2i, CM-iAM single-board computers made by Compulab.
1141
1142	  It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
1143	  When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
1144
1145	  Entering BIOS setup temporary disables watchdog operation regardless to current state,
1146	  so system will not be restarted while user in BIOS setup.
1147
1148	  Once watchdog was enabled the system will be restarted every
1149	  "Watchdog Timer Value" period, so to prevent it user can restart or
1150	  disable the watchdog.
1151
1152	  To compile this driver as a module, choose M here: the
1153	  module will be called sbc_fitpc2_wdt.
1154
1155	  Most people will say N.
1156
1157config EUROTECH_WDT
1158	tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1159	depends on X86
1160	help
1161	  Enable support for the watchdog timer on the Eurotech CPU-1220 and
1162	  CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
1163	  information are at <http://www.eurotech.it/>.
1164
1165config IB700_WDT
1166	tristate "IB700 SBC Watchdog Timer"
1167	depends on X86
1168	help
1169	  This is the driver for the hardware watchdog on the IB700 Single
1170	  Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
1171	  simply watches your kernel to make sure it doesn't freeze, and if
1172	  it does, it reboots your computer after a certain amount of time.
1173
1174	  This driver is like the WDT501 driver but for slightly different hardware.
1175
1176	  To compile this driver as a module, choose M here: the
1177	  module will be called ib700wdt.
1178
1179	  Most people will say N.
1180
1181config IBMASR
1182	tristate "IBM Automatic Server Restart"
1183	depends on X86
1184	help
1185	  This is the driver for the IBM Automatic Server Restart watchdog
1186	  timer built-in into some eServer xSeries machines.
1187
1188	  To compile this driver as a module, choose M here: the
1189	  module will be called ibmasr.
1190
1191config WAFER_WDT
1192	tristate "ICP Single Board Computer Watchdog Timer"
1193	depends on X86
1194	help
1195	  This is a driver for the hardware watchdog on the ICP Single
1196	  Board Computer. This driver is working on (at least) the following
1197	  IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1198
1199	  To compile this driver as a module, choose M here: the
1200	  module will be called wafer5823wdt.
1201
1202config I6300ESB_WDT
1203	tristate "Intel 6300ESB Timer/Watchdog"
1204	depends on PCI
1205	select WATCHDOG_CORE
1206	help
1207	  Hardware driver for the watchdog timer built into the Intel
1208	  6300ESB controller hub.
1209
1210	  To compile this driver as a module, choose M here: the
1211	  module will be called i6300esb.
1212
1213config IE6XX_WDT
1214	tristate "Intel Atom E6xx Watchdog"
1215	depends on X86 && PCI
1216	select WATCHDOG_CORE
1217	select MFD_CORE
1218	select LPC_SCH
1219	help
1220	  Hardware driver for the watchdog timer built into the Intel
1221	  Atom E6XX (TunnelCreek) processor.
1222
1223	  To compile this driver as a module, choose M here: the
1224	  module will be called ie6xx_wdt.
1225
1226config INTEL_SCU_WATCHDOG
1227	bool "Intel SCU Watchdog for Mobile Platforms"
1228	depends on X86_INTEL_MID
1229	help
1230	  Hardware driver for the watchdog time built into the Intel SCU
1231	  for Intel Mobile Platforms.
1232
1233	  To compile this driver as a module, choose M here.
1234
1235config INTEL_MID_WATCHDOG
1236	tristate "Intel MID Watchdog Timer"
1237	depends on X86_INTEL_MID
1238	select WATCHDOG_CORE
1239	help
1240	  Watchdog timer driver built into the Intel SCU for Intel MID
1241	  Platforms.
1242
1243	  This driver currently supports only the watchdog evolution
1244	  implementation in SCU, available for Merrifield generation.
1245
1246	  To compile this driver as a module, choose M here.
1247
1248config ITCO_WDT
1249	tristate "Intel TCO Timer/Watchdog"
1250	depends on (X86 || IA64) && PCI
1251	select WATCHDOG_CORE
1252	depends on I2C || I2C=n
1253	depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT
1254	select LPC_ICH if !EXPERT
1255	select I2C_I801 if !EXPERT && I2C
1256	help
1257	  Hardware driver for the intel TCO timer based watchdog devices.
1258	  These drivers are included in the Intel 82801 I/O Controller
1259	  Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1260	  controller hub.
1261
1262	  The TCO (Total Cost of Ownership) timer is a watchdog timer
1263	  that will reboot the machine after its second expiration. The
1264	  expiration time can be configured with the "heartbeat" parameter.
1265
1266	  On some motherboards the driver may fail to reset the chipset's
1267	  NO_REBOOT flag which prevents the watchdog from rebooting the
1268	  machine. If this is the case you will get a kernel message like
1269	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1270
1271	  To compile this driver as a module, choose M here: the
1272	  module will be called iTCO_wdt.
1273
1274config ITCO_VENDOR_SUPPORT
1275	bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1276	depends on ITCO_WDT
1277	help
1278	  Add vendor specific support to the intel TCO timer based watchdog
1279	  devices. At this moment we only have additional support for some
1280	  SuperMicro Inc. motherboards.
1281
1282config IT8712F_WDT
1283	tristate "IT8712F (Smart Guardian) Watchdog Timer"
1284	depends on X86
1285	help
1286	  This is the driver for the built-in watchdog timer on the IT8712F
1287	  Super I/0 chipset used on many motherboards.
1288
1289	  If the driver does not work, then make sure that the game port in
1290	  the BIOS is enabled.
1291
1292	  To compile this driver as a module, choose M here: the
1293	  module will be called it8712f_wdt.
1294
1295config IT87_WDT
1296	tristate "IT87 Watchdog Timer"
1297	depends on X86
1298	select WATCHDOG_CORE
1299	help
1300	  This is the driver for the hardware watchdog on the ITE IT8607,
1301	  IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1302	  IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1303	  IT8783 Super I/O chips.
1304
1305	  This watchdog simply watches your kernel to make sure it doesn't
1306	  freeze, and if it does, it reboots your computer after a certain
1307	  amount of time.
1308
1309	  To compile this driver as a module, choose M here: the module will
1310	  be called it87_wdt.
1311
1312config HP_WATCHDOG
1313	tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1314	select WATCHDOG_CORE
1315	depends on X86 && PCI
1316	help
1317	  A software monitoring watchdog and NMI handling driver. This driver
1318	  will detect lockups and provide a stack trace. This is a driver that
1319	  will only load on an HP ProLiant system with a minimum of iLO2 support.
1320	  To compile this driver as a module, choose M here: the module will be
1321	  called hpwdt.
1322
1323config HPWDT_NMI_DECODING
1324	bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1325	depends on HP_WATCHDOG
1326	default y
1327	help
1328	  Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1329	  "Generate NMI to System" virtual button.  When an NMI is claimed
1330	  by the driver, panic is called.
1331
1332config KEMPLD_WDT
1333	tristate "Kontron COM Watchdog Timer"
1334	depends on MFD_KEMPLD
1335	select WATCHDOG_CORE
1336	help
1337	  Support for the PLD watchdog on some Kontron ETX and COMexpress
1338	  (ETXexpress) modules
1339
1340	  This driver can also be built as a module. If so, the module will be
1341	  called kempld_wdt.
1342
1343config SC1200_WDT
1344	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1345	depends on X86
1346	help
1347	  This is a driver for National Semiconductor PC87307/PC97307 hardware
1348	  watchdog cards as found on the SC1200. This watchdog is mainly used
1349	  for power management purposes and can be used to power down the device
1350	  during inactivity periods (includes interrupt activity monitoring).
1351
1352	  To compile this driver as a module, choose M here: the
1353	  module will be called sc1200wdt.
1354
1355	  Most people will say N.
1356
1357config SCx200_WDT
1358	tristate "National Semiconductor SCx200 Watchdog"
1359	depends on SCx200 && PCI
1360	help
1361	  Enable the built-in watchdog timer support on the National
1362	  Semiconductor SCx200 processors.
1363
1364	  If compiled as a module, it will be called scx200_wdt.
1365
1366config PC87413_WDT
1367	tristate "NS PC87413 watchdog"
1368	depends on X86
1369	help
1370	  This is the driver for the hardware watchdog on the PC87413 chipset
1371	  This watchdog simply watches your kernel to make sure it doesn't
1372	  freeze, and if it does, it reboots your computer after a certain
1373	  amount of time.
1374
1375	  To compile this driver as a module, choose M here: the
1376	  module will be called pc87413_wdt.
1377
1378	  Most people will say N.
1379
1380config NV_TCO
1381	tristate "nVidia TCO Timer/Watchdog"
1382	depends on X86 && PCI
1383	help
1384	  Hardware driver for the TCO timer built into the nVidia Hub family
1385	  (such as the MCP51).  The TCO (Total Cost of Ownership) timer is a
1386	  watchdog timer that will reboot the machine after its second
1387	  expiration. The expiration time can be configured with the
1388	  "heartbeat" parameter.
1389
1390	  On some motherboards the driver may fail to reset the chipset's
1391	  NO_REBOOT flag which prevents the watchdog from rebooting the
1392	  machine. If this is the case you will get a kernel message like
1393	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1394
1395	  To compile this driver as a module, choose M here: the
1396	  module will be called nv_tco.
1397
1398config RDC321X_WDT
1399	tristate "RDC R-321x SoC watchdog"
1400	depends on X86_RDC321X || COMPILE_TEST
1401	depends on PCI
1402	help
1403	  This is the driver for the built in hardware watchdog
1404	  in the RDC R-321x SoC.
1405
1406	  To compile this driver as a module, choose M here: the
1407	  module will be called rdc321x_wdt.
1408
1409config 60XX_WDT
1410	tristate "SBC-60XX Watchdog Timer"
1411	depends on X86
1412	help
1413	  This driver can be used with the watchdog timer found on some
1414	  single board computers, namely the 6010 PII based computer.
1415	  It may well work with other cards.  It reads port 0x443 to enable
1416	  and re-set the watchdog timer, and reads port 0x45 to disable
1417	  the watchdog.  If you have a card that behave in similar ways,
1418	  you can probably make this driver work with your card as well.
1419
1420	  You can compile this driver directly into the kernel, or use
1421	  it as a module.  The module will be called sbc60xxwdt.
1422
1423config SBC8360_WDT
1424	tristate "SBC8360 Watchdog Timer"
1425	depends on X86_32
1426	help
1427
1428	  This is the driver for the hardware watchdog on the SBC8360 Single
1429	  Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1430
1431	  To compile this driver as a module, choose M here: the
1432	  module will be called sbc8360.
1433
1434	  Most people will say N.
1435
1436config SBC7240_WDT
1437	tristate "SBC Nano 7240 Watchdog Timer"
1438	depends on X86_32 && !UML
1439	help
1440	  This is the driver for the hardware watchdog found on the IEI
1441	  single board computers EPIC Nano 7240 (and likely others). This
1442	  watchdog simply watches your kernel to make sure it doesn't freeze,
1443	  and if it does, it reboots your computer after a certain amount of
1444	  time.
1445
1446	  To compile this driver as a module, choose M here: the
1447	  module will be called sbc7240_wdt.
1448
1449config CPU5_WDT
1450	tristate "SMA CPU5 Watchdog"
1451	depends on X86
1452	help
1453	  TBD.
1454	  To compile this driver as a module, choose M here: the
1455	  module will be called cpu5wdt.
1456
1457config SMSC_SCH311X_WDT
1458	tristate "SMSC SCH311X Watchdog Timer"
1459	depends on X86
1460	help
1461	  This is the driver for the hardware watchdog timer on the
1462	  SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1463	  (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1464	  serial ports).
1465
1466	  To compile this driver as a module, choose M here: the
1467	  module will be called sch311x_wdt.
1468
1469config SMSC37B787_WDT
1470	tristate "Winbond SMsC37B787 Watchdog Timer"
1471	depends on X86
1472	help
1473	  This is the driver for the hardware watchdog component on the
1474	  Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1475	  from Vision Systems and maybe others.
1476
1477	  This watchdog simply watches your kernel to make sure it doesn't
1478	  freeze, and if it does, it reboots your computer after a certain
1479	  amount of time.
1480
1481	  Usually a userspace daemon will notify the kernel WDT driver that
1482	  userspace is still alive, at regular intervals.
1483
1484	  To compile this driver as a module, choose M here: the
1485	  module will be called smsc37b787_wdt.
1486
1487	  Most people will say N.
1488
1489config TQMX86_WDT
1490	tristate "TQ-Systems TQMX86 Watchdog Timer"
1491	depends on X86
1492	select WATCHDOG_CORE
1493	help
1494	This is the driver for the hardware watchdog timer in the TQMX86 IO
1495	controller found on some of their ComExpress Modules.
1496
1497	To compile this driver as a module, choose M here; the module
1498	will be called tqmx86_wdt.
1499
1500	Most people will say N.
1501
1502config VIA_WDT
1503	tristate "VIA Watchdog Timer"
1504	depends on X86 && PCI
1505	select WATCHDOG_CORE
1506	help
1507	This is the driver for the hardware watchdog timer on VIA
1508	southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1509
1510	To compile this driver as a module, choose M here; the module
1511	will be called via_wdt.
1512
1513	Most people will say N.
1514
1515config W83627HF_WDT
1516	tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1517	depends on X86
1518	select WATCHDOG_CORE
1519	help
1520	  This is the driver for the hardware watchdog on the following
1521	  Super I/O chips.
1522		W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1523		W83637HF
1524		W83667HG/HG-B
1525		W83687THF
1526		W83697HF
1527		W83697UG
1528		NCT6775
1529		NCT6776
1530		NCT6779
1531		NCT6791
1532		NCT6792
1533		NCT6102D/04D/06D
1534		NCT6116D
1535
1536	  This watchdog simply watches your kernel to make sure it doesn't
1537	  freeze, and if it does, it reboots your computer after a certain
1538	  amount of time.
1539
1540	  To compile this driver as a module, choose M here: the
1541	  module will be called w83627hf_wdt.
1542
1543	  Most people will say N.
1544
1545config W83877F_WDT
1546	tristate "W83877F (EMACS) Watchdog Timer"
1547	depends on X86
1548	help
1549	  This is the driver for the hardware watchdog on the W83877F chipset
1550	  as used in EMACS PC-104 motherboards (and likely others).  This
1551	  watchdog simply watches your kernel to make sure it doesn't freeze,
1552	  and if it does, it reboots your computer after a certain amount of
1553	  time.
1554
1555	  To compile this driver as a module, choose M here: the
1556	  module will be called w83877f_wdt.
1557
1558	  Most people will say N.
1559
1560config W83977F_WDT
1561	tristate "W83977F (PCM-5335) Watchdog Timer"
1562	depends on X86
1563	help
1564	  This is the driver for the hardware watchdog on the W83977F I/O chip
1565	  as used in AAEON's PCM-5335 SBC (and likely others).  This
1566	  watchdog simply watches your kernel to make sure it doesn't freeze,
1567	  and if it does, it reboots your computer after a certain amount of
1568	  time.
1569
1570	  To compile this driver as a module, choose M here: the
1571	  module will be called w83977f_wdt.
1572
1573config MACHZ_WDT
1574	tristate "ZF MachZ Watchdog"
1575	depends on X86
1576	help
1577	  If you are using a ZF Micro MachZ processor, say Y here, otherwise
1578	  N.  This is the driver for the watchdog timer built-in on that
1579	  processor using ZF-Logic interface.  This watchdog simply watches
1580	  your kernel to make sure it doesn't freeze, and if it does, it
1581	  reboots your computer after a certain amount of time.
1582
1583	  To compile this driver as a module, choose M here: the
1584	  module will be called machzwd.
1585
1586config SBC_EPX_C3_WATCHDOG
1587	tristate "Winsystems SBC EPX-C3 watchdog"
1588	depends on X86
1589	help
1590	  This is the driver for the built-in watchdog timer on the EPX-C3
1591	  Single-board computer made by Winsystems, Inc.
1592
1593	  *Note*: This hardware watchdog is not probeable and thus there
1594	  is no way to know if writing to its IO address will corrupt
1595	  your system or have any real effect.  The only way to be sure
1596	  that this driver does what you want is to make sure you
1597	  are running it on an EPX-C3 from Winsystems with the watchdog
1598	  timer at IO address 0x1ee and 0x1ef.  It will write to both those
1599	  IO ports.  Basically, the assumption is made that if you compile
1600	  this driver into your kernel and/or load it as a module, that you
1601	  know what you are doing and that you are in fact running on an
1602	  EPX-C3 board!
1603
1604	  To compile this driver as a module, choose M here: the
1605	  module will be called sbc_epx_c3.
1606
1607config INTEL_MEI_WDT
1608	tristate "Intel MEI iAMT Watchdog"
1609	depends on INTEL_MEI && X86
1610	select WATCHDOG_CORE
1611	help
1612	  A device driver for the Intel MEI iAMT watchdog.
1613
1614	  The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1615	  Whenever the OS hangs or crashes, iAMT will send an event
1616	  to any subscriber to this event. The watchdog doesn't reset the
1617	  the platform.
1618
1619	  To compile this driver as a module, choose M here:
1620	  the module will be called mei_wdt.
1621
1622config NI903X_WDT
1623	tristate "NI 903x/913x Watchdog"
1624	depends on X86 && ACPI
1625	select WATCHDOG_CORE
1626	help
1627	  This is the driver for the watchdog timer on the National Instruments
1628	  903x/913x real-time controllers.
1629
1630	  To compile this driver as a module, choose M here: the module will be
1631	  called ni903x_wdt.
1632
1633config NIC7018_WDT
1634	tristate "NIC7018 Watchdog"
1635	depends on X86 && ACPI
1636	select WATCHDOG_CORE
1637	help
1638	  Support for National Instruments NIC7018 Watchdog.
1639
1640	  To compile this driver as a module, choose M here: the module will be
1641	  called nic7018_wdt.
1642
1643# M68K Architecture
1644
1645config M54xx_WATCHDOG
1646	tristate "MCF54xx watchdog support"
1647	depends on M548x
1648	help
1649	  To compile this driver as a module, choose M here: the
1650	  module will be called m54xx_wdt.
1651
1652# MicroBlaze Architecture
1653
1654# MIPS Architecture
1655
1656config ATH79_WDT
1657	tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1658	depends on ATH79 || (ARM && COMPILE_TEST)
1659	help
1660	  Hardware driver for the built-in watchdog timer on the Atheros
1661	  AR71XX/AR724X/AR913X SoCs.
1662
1663config BCM47XX_WDT
1664	tristate "Broadcom BCM47xx Watchdog Timer"
1665	depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1666	select WATCHDOG_CORE
1667	help
1668	  Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1669
1670config RC32434_WDT
1671	tristate "IDT RC32434 SoC Watchdog Timer"
1672	depends on MIKROTIK_RB532
1673	help
1674	  Hardware driver for the IDT RC32434 SoC built-in
1675	  watchdog timer.
1676
1677	  To compile this driver as a module, choose M here: the
1678	  module will be called rc32434_wdt.
1679
1680config INDYDOG
1681	tristate "Indy/I2 Hardware Watchdog"
1682	depends on SGI_HAS_INDYDOG
1683	help
1684	  Hardware driver for the Indy's/I2's watchdog. This is a
1685	  watchdog timer that will reboot the machine after a 60 second
1686	  timer expired and no process has written to /dev/watchdog during
1687	  that time.
1688
1689config JZ4740_WDT
1690	tristate "Ingenic jz4740 SoC hardware watchdog"
1691	depends on MIPS
1692	depends on COMMON_CLK
1693	select WATCHDOG_CORE
1694	select MFD_SYSCON
1695	help
1696	  Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1697
1698config WDT_MTX1
1699	tristate "MTX-1 Hardware Watchdog"
1700	depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1701	help
1702	  Hardware driver for the MTX-1 boards. This is a watchdog timer that
1703	  will reboot the machine after a 100 seconds timer expired.
1704
1705config PNX833X_WDT
1706	tristate "PNX833x Hardware Watchdog"
1707	depends on SOC_PNX8335
1708	depends on BROKEN
1709	help
1710	  Hardware driver for the PNX833x's watchdog. This is a
1711	  watchdog timer that will reboot the machine after a programmable
1712	  timer has expired and no process has written to /dev/watchdog during
1713	  that time.
1714
1715config SIBYTE_WDOG
1716	tristate "Sibyte SoC hardware watchdog"
1717	depends on CPU_SB1 || (MIPS && COMPILE_TEST)
1718	help
1719	  Watchdog driver for the built in watchdog hardware in Sibyte
1720	  SoC processors.  There are apparently two watchdog timers
1721	  on such processors; this driver supports only the first one,
1722	  because currently Linux only supports exporting one watchdog
1723	  to userspace.
1724
1725	  To compile this driver as a loadable module, choose M here.
1726	  The module will be called sb_wdog.
1727
1728config AR7_WDT
1729	tristate "TI AR7 Watchdog Timer"
1730	depends on AR7 || (MIPS && COMPILE_TEST)
1731	help
1732	  Hardware driver for the TI AR7 Watchdog Timer.
1733
1734config TXX9_WDT
1735	tristate "Toshiba TXx9 Watchdog Timer"
1736	depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
1737	select WATCHDOG_CORE
1738	help
1739	  Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1740
1741config OCTEON_WDT
1742	tristate "Cavium OCTEON SOC family Watchdog Timer"
1743	depends on CAVIUM_OCTEON_SOC
1744	default y
1745	select WATCHDOG_CORE
1746	select EXPORT_UASM if OCTEON_WDT = m
1747	help
1748	  Hardware driver for OCTEON's on chip watchdog timer.
1749	  Enables the watchdog for all cores running Linux. It
1750	  installs a NMI handler and pokes the watchdog based on an
1751	  interrupt.  On first expiration of the watchdog, the
1752	  interrupt handler pokes it.  The second expiration causes an
1753	  NMI that prints a message. The third expiration causes a
1754	  global soft reset.
1755
1756	  When userspace has /dev/watchdog open, no poking is done
1757	  from the first interrupt, it is then only poked when the
1758	  device is written.
1759
1760config BCM63XX_WDT
1761	tristate "Broadcom BCM63xx hardware watchdog"
1762	depends on BCM63XX
1763	help
1764	  Watchdog driver for the built in watchdog hardware in Broadcom
1765	  BCM63xx SoC.
1766
1767	  To compile this driver as a loadable module, choose M here.
1768	  The module will be called bcm63xx_wdt.
1769
1770config BCM2835_WDT
1771	tristate "Broadcom BCM2835 hardware watchdog"
1772	depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1773	select WATCHDOG_CORE
1774	help
1775	  Watchdog driver for the built in watchdog hardware in Broadcom
1776	  BCM2835 SoC.
1777
1778	  To compile this driver as a loadable module, choose M here.
1779	  The module will be called bcm2835_wdt.
1780
1781config BCM_KONA_WDT
1782	tristate "BCM Kona Watchdog"
1783	depends on ARCH_BCM_MOBILE || COMPILE_TEST
1784	select WATCHDOG_CORE
1785	help
1786	  Support for the watchdog timer on the following Broadcom BCM281xx
1787	  family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1788	  BCM28155 variants.
1789
1790	  Say 'Y' or 'M' here to enable the driver. The module will be called
1791	  bcm_kona_wdt.
1792
1793config BCM_KONA_WDT_DEBUG
1794	bool "DEBUGFS support for BCM Kona Watchdog"
1795	depends on BCM_KONA_WDT
1796	help
1797	  If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1798	  access to the driver's internal data structures as well as watchdog
1799	  timer hardware registres.
1800
1801	  If in doubt, say 'N'.
1802
1803config BCM7038_WDT
1804	tristate "BCM7038 Watchdog"
1805	select WATCHDOG_CORE
1806	depends on HAS_IOMEM
1807	depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1808	help
1809	 Watchdog driver for the built-in hardware in Broadcom 7038 and
1810	 later SoCs used in set-top boxes.  BCM7038 was made public
1811	 during the 2004 CES, and since then, many Broadcom chips use this
1812	 watchdog block, including some cable modem chips.
1813
1814config IMGPDC_WDT
1815	tristate "Imagination Technologies PDC Watchdog Timer"
1816	depends on HAS_IOMEM
1817	depends on MIPS || COMPILE_TEST
1818	select WATCHDOG_CORE
1819	help
1820	  Driver for Imagination Technologies PowerDown Controller
1821	  Watchdog Timer.
1822
1823	  To compile this driver as a loadable module, choose M here.
1824	  The module will be called imgpdc_wdt.
1825
1826config LANTIQ_WDT
1827	tristate "Lantiq SoC watchdog"
1828	depends on LANTIQ
1829	select WATCHDOG_CORE
1830	help
1831	  Hardware driver for the Lantiq SoC Watchdog Timer.
1832
1833config LOONGSON1_WDT
1834	tristate "Loongson1 SoC hardware watchdog"
1835	depends on MACH_LOONGSON32
1836	select WATCHDOG_CORE
1837	help
1838	  Hardware driver for the Loongson1 SoC Watchdog Timer.
1839
1840config RALINK_WDT
1841	tristate "Ralink SoC watchdog"
1842	select WATCHDOG_CORE
1843	depends on RALINK
1844	help
1845	  Hardware driver for the Ralink SoC Watchdog Timer.
1846
1847config MT7621_WDT
1848	tristate "Mediatek SoC watchdog"
1849	select WATCHDOG_CORE
1850	depends on SOC_MT7620 || SOC_MT7621
1851	help
1852	  Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1853
1854config PIC32_WDT
1855	tristate "Microchip PIC32 hardware watchdog"
1856	select WATCHDOG_CORE
1857	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1858	help
1859	  Watchdog driver for the built in watchdog hardware in a PIC32.
1860
1861	  Configuration bits must be set appropriately for the watchdog to be
1862	  controlled by this driver.
1863
1864	  To compile this driver as a loadable module, choose M here.
1865	  The module will be called pic32-wdt.
1866
1867config PIC32_DMT
1868	tristate "Microchip PIC32 Deadman Timer"
1869	select WATCHDOG_CORE
1870	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1871	help
1872	  Watchdog driver for PIC32 instruction fetch counting timer. This specific
1873	  timer is typically be used in misson critical and safety critical
1874	  applications, where any single failure of the software functionality
1875	  and sequencing must be detected.
1876
1877	  To compile this driver as a loadable module, choose M here.
1878	  The module will be called pic32-dmt.
1879
1880# PARISC Architecture
1881
1882# POWERPC Architecture
1883
1884config GEF_WDT
1885	tristate "GE Watchdog Timer"
1886	depends on GE_FPGA
1887	help
1888	  Watchdog timer found in a number of GE single board computers.
1889
1890config MPC5200_WDT
1891	bool "MPC52xx Watchdog Timer"
1892	depends on PPC_MPC52xx || COMPILE_TEST
1893	help
1894	  Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1895
1896config 8xxx_WDT
1897	tristate "MPC8xxx Platform Watchdog Timer"
1898	depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1899	select WATCHDOG_CORE
1900	help
1901	  This driver is for a SoC level watchdog that exists on some
1902	  Freescale PowerPC processors. So far this driver supports:
1903	  - MPC8xx watchdogs
1904	  - MPC83xx watchdogs
1905	  - MPC86xx watchdogs
1906
1907	  For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1908
1909config MV64X60_WDT
1910	tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1911	depends on MV64X60 || COMPILE_TEST
1912
1913config PIKA_WDT
1914	tristate "PIKA FPGA Watchdog"
1915	depends on WARP || (PPC64 && COMPILE_TEST)
1916	default y
1917	help
1918	  This enables the watchdog in the PIKA FPGA. Currently used on
1919	  the Warp platform.
1920
1921config BOOKE_WDT
1922	tristate "PowerPC Book-E Watchdog Timer"
1923	depends on BOOKE || 4xx
1924	select WATCHDOG_CORE
1925	help
1926	  Watchdog driver for PowerPC Book-E chips, such as the Freescale
1927	  MPC85xx SOCs and the IBM PowerPC 440.
1928
1929	  Please see Documentation/watchdog/watchdog-api.rst for
1930	  more information.
1931
1932config BOOKE_WDT_DEFAULT_TIMEOUT
1933	int "PowerPC Book-E Watchdog Timer Default Timeout"
1934	depends on BOOKE_WDT
1935	default 38 if PPC_FSL_BOOK3E
1936	range 0 63 if PPC_FSL_BOOK3E
1937	default 3 if !PPC_FSL_BOOK3E
1938	range 0 3 if !PPC_FSL_BOOK3E
1939	help
1940	  Select the default watchdog timer period to be used by the PowerPC
1941	  Book-E watchdog driver.  A watchdog "event" occurs when the bit
1942	  position represented by this number transitions from zero to one.
1943
1944	  For Freescale Book-E processors, this is a number between 0 and 63.
1945	  For other Book-E processors, this is a number between 0 and 3.
1946
1947	  The value can be overridden by the wdt_period command-line parameter.
1948
1949config MEN_A21_WDT
1950	tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1951	select WATCHDOG_CORE
1952	depends on GPIOLIB || COMPILE_TEST
1953	help
1954	  Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1955
1956	  The driver can also be built as a module. If so, the module will be
1957	  called mena21_wdt.
1958
1959	  If unsure select N here.
1960
1961# PPC64 Architecture
1962
1963config WATCHDOG_RTAS
1964	tristate "RTAS watchdog"
1965	depends on PPC_RTAS
1966	help
1967	  This driver adds watchdog support for the RTAS watchdog.
1968
1969	  To compile this driver as a module, choose M here. The module
1970	  will be called wdrtas.
1971
1972# S390 Architecture
1973
1974config DIAG288_WATCHDOG
1975	tristate "System z diag288 Watchdog"
1976	depends on S390
1977	select WATCHDOG_CORE
1978	help
1979	  IBM s/390 and zSeries machines running under z/VM 5.1 or later
1980	  provide a virtual watchdog timer to their guest that cause a
1981	  user define Control Program command to be executed after a
1982	  timeout.
1983	  LPAR provides a very similar interface. This driver handles
1984	  both.
1985
1986	  To compile this driver as a module, choose M here. The module
1987	  will be called diag288_wdt.
1988
1989# SUPERH (sh + sh64) Architecture
1990
1991config SH_WDT
1992	tristate "SuperH Watchdog"
1993	depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1994	select WATCHDOG_CORE
1995	help
1996	  This driver adds watchdog support for the integrated watchdog in the
1997	  SuperH processors. If you have one of these processors and wish
1998	  to have watchdog support enabled, say Y, otherwise say N.
1999
2000	  As a side note, saying Y here will automatically boost HZ to 1000
2001	  so that the timer has a chance to clear the overflow counter. On
2002	  slower systems (such as the SH-2 and SH-3) this will likely yield
2003	  some performance issues. As such, the WDT should be avoided here
2004	  unless it is absolutely necessary.
2005
2006	  To compile this driver as a module, choose M here: the
2007	  module will be called shwdt.
2008
2009# SPARC Architecture
2010
2011# SPARC64 Architecture
2012
2013config WATCHDOG_CP1XXX
2014	tristate "CP1XXX Hardware Watchdog support"
2015	depends on SPARC64 && PCI
2016	help
2017	  This is the driver for the hardware watchdog timers present on
2018	  Sun Microsystems CompactPCI models CP1400 and CP1500.
2019
2020	  To compile this driver as a module, choose M here: the
2021	  module will be called cpwatchdog.
2022
2023	  If you do not have a CompactPCI model CP1400 or CP1500, or
2024	  another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
2025	  you should say N to this option.
2026
2027config WATCHDOG_RIO
2028	tristate "RIO Hardware Watchdog support"
2029	depends on SPARC64 && PCI
2030	help
2031	  Say Y here to support the hardware watchdog capability on Sun RIO
2032	  machines.  The watchdog timeout period is normally one minute but
2033	  can be changed with a boot-time parameter.
2034
2035config WATCHDOG_SUN4V
2036	tristate "Sun4v Watchdog support"
2037	select WATCHDOG_CORE
2038	depends on SPARC64
2039	help
2040	  Say Y here to support the hypervisor watchdog capability embedded
2041	  in the SPARC sun4v architecture.
2042
2043	  To compile this driver as a module, choose M here. The module will
2044	  be called sun4v_wdt.
2045
2046# XTENSA Architecture
2047
2048# Xen Architecture
2049
2050config XEN_WDT
2051	tristate "Xen Watchdog support"
2052	depends on XEN
2053	select WATCHDOG_CORE
2054	help
2055	  Say Y here to support the hypervisor watchdog capability provided
2056	  by Xen 4.0 and newer.  The watchdog timeout period is normally one
2057	  minute but can be changed with a boot-time parameter.
2058
2059config UML_WATCHDOG
2060	tristate "UML watchdog"
2061	depends on UML || COMPILE_TEST
2062
2063#
2064# ISA-based Watchdog Cards
2065#
2066
2067comment "ISA-based Watchdog Cards"
2068	depends on ISA
2069
2070config PCWATCHDOG
2071	tristate "Berkshire Products ISA-PC Watchdog"
2072	depends on ISA
2073	help
2074	  This is the driver for the Berkshire Products ISA-PC Watchdog card.
2075	  This card simply watches your kernel to make sure it doesn't freeze,
2076	  and if it does, it reboots your computer after a certain amount of
2077	  time. This driver is like the WDT501 driver but for different
2078	  hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. The PC
2079	  watchdog cards can be ordered from <http://www.berkprod.com/>.
2080
2081	  To compile this driver as a module, choose M here: the
2082	  module will be called pcwd.
2083
2084	  Most people will say N.
2085
2086config MIXCOMWD
2087	tristate "Mixcom Watchdog"
2088	depends on ISA
2089	help
2090	  This is a driver for the Mixcom hardware watchdog cards.  This
2091	  watchdog simply watches your kernel to make sure it doesn't freeze,
2092	  and if it does, it reboots your computer after a certain amount of
2093	  time.
2094
2095	  To compile this driver as a module, choose M here: the
2096	  module will be called mixcomwd.
2097
2098	  Most people will say N.
2099
2100config WDT
2101	tristate "WDT Watchdog timer"
2102	depends on ISA
2103	help
2104	  If you have a WDT500P or WDT501P watchdog board, say Y here,
2105	  otherwise N. It is not possible to probe for this board, which means
2106	  that you have to inform the kernel about the IO port and IRQ that
2107	  is needed (you can do this via the io and irq parameters)
2108
2109	  To compile this driver as a module, choose M here: the
2110	  module will be called wdt.
2111
2112#
2113# PCI-based Watchdog Cards
2114#
2115
2116comment "PCI-based Watchdog Cards"
2117	depends on PCI
2118
2119config PCIPCWATCHDOG
2120	tristate "Berkshire Products PCI-PC Watchdog"
2121	depends on PCI
2122	help
2123	  This is the driver for the Berkshire Products PCI-PC Watchdog card.
2124	  This card simply watches your kernel to make sure it doesn't freeze,
2125	  and if it does, it reboots your computer after a certain amount of
2126	  time. The card can also monitor the internal temperature of the PC.
2127	  More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2128
2129	  To compile this driver as a module, choose M here: the
2130	  module will be called pcwd_pci.
2131
2132	  Most people will say N.
2133
2134config WDTPCI
2135	tristate "PCI-WDT500/501 Watchdog timer"
2136	depends on PCI
2137	help
2138	  If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2139
2140	  If you have a PCI-WDT501 watchdog board then you can enable the
2141	  temperature sensor by setting the type parameter to 501.
2142
2143	  If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2144	  can do this via the tachometer parameter. Only do this if you have a
2145	  fan tachometer actually set up.
2146
2147	  To compile this driver as a module, choose M here: the
2148	  module will be called wdt_pci.
2149
2150#
2151# USB-based Watchdog Cards
2152#
2153
2154comment "USB-based Watchdog Cards"
2155	depends on USB
2156
2157config USBPCWATCHDOG
2158	tristate "Berkshire Products USB-PC Watchdog"
2159	depends on USB
2160	help
2161	  This is the driver for the Berkshire Products USB-PC Watchdog card.
2162	  This card simply watches your kernel to make sure it doesn't freeze,
2163	  and if it does, it reboots your computer after a certain amount of
2164	  time. The card can also monitor the internal temperature of the PC.
2165	  More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2166
2167	  To compile this driver as a module, choose M here: the
2168	  module will be called pcwd_usb.
2169
2170	  Most people will say N.
2171
2172endif # WATCHDOG
2173