xref: /openbmc/linux/drivers/watchdog/Kconfig (revision dfc53baa)
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 HAVE_S3C2410_WATCHDOG
482	bool
483	help
484	  This will include watchdog timer support for Samsung SoCs. If
485	  you want to include watchdog support for any machine, kindly
486	  select this in the respective mach-XXXX/Kconfig file.
487
488config S3C2410_WATCHDOG
489	tristate "S3C2410 Watchdog"
490	depends on HAVE_S3C2410_WATCHDOG || COMPILE_TEST
491	select WATCHDOG_CORE
492	select MFD_SYSCON if ARCH_EXYNOS
493	help
494	  Watchdog timer block in the Samsung SoCs. This will reboot
495	  the system when the timer expires with the watchdog enabled.
496
497	  The driver is limited by the speed of the system's PCLK
498	  signal, so with reasonably fast systems (PCLK around 50-66MHz)
499	  then watchdog intervals of over approximately 20seconds are
500	  unavailable.
501
502	  The driver can be built as a module by choosing M, and will
503	  be called s3c2410_wdt
504
505config SA1100_WATCHDOG
506	tristate "SA1100/PXA2xx watchdog"
507	depends on ARCH_SA1100 || ARCH_PXA
508	help
509	  Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
510	  reboot your system when timeout is reached.
511
512	  NOTE: once enabled, this timer cannot be disabled.
513
514	  To compile this driver as a module, choose M here: the
515	  module will be called sa1100_wdt.
516
517config DW_WATCHDOG
518	tristate "Synopsys DesignWare watchdog"
519	depends on HAS_IOMEM
520	select WATCHDOG_CORE
521	help
522	  Say Y here if to include support for the Synopsys DesignWare
523	  watchdog timer found in many chips.
524	  To compile this driver as a module, choose M here: the
525	  module will be called dw_wdt.
526
527config EP93XX_WATCHDOG
528	tristate "EP93xx Watchdog"
529	depends on ARCH_EP93XX || COMPILE_TEST
530	select WATCHDOG_CORE
531	help
532	  Say Y here if to include support for the watchdog timer
533	  embedded in the Cirrus Logic EP93xx family of devices.
534
535	  To compile this driver as a module, choose M here: the
536	  module will be called ep93xx_wdt.
537
538config OMAP_WATCHDOG
539	tristate "OMAP Watchdog"
540	depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
541	select WATCHDOG_CORE
542	help
543	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.  Say 'Y'
544	  here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
545
546config PNX4008_WATCHDOG
547	tristate "LPC32XX Watchdog"
548	depends on ARCH_LPC32XX || COMPILE_TEST
549	select WATCHDOG_CORE
550	help
551	  Say Y here if to include support for the watchdog timer
552	  in the LPC32XX processor.
553	  This driver can be built as a module by choosing M. The module
554	  will be called pnx4008_wdt.
555
556	  Say N if you are unsure.
557
558config IOP_WATCHDOG
559	tristate "IOP Watchdog"
560	depends on ARCH_IOP13XX
561	select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
562	help
563	  Say Y here if to include support for the watchdog timer
564	  in the Intel IOP3XX & IOP13XX I/O Processors.  This driver can
565	  be built as a module by choosing M. The module will
566	  be called iop_wdt.
567
568	  Note: The IOP13XX watchdog does an Internal Bus Reset which will
569	  affect both cores and the peripherals of the IOP.  The ATU-X
570	  and/or ATUe configuration registers will remain intact, but if
571	  operating as an Root Complex and/or Central Resource, the PCI-X
572	  and/or PCIe busses will also be reset.  THIS IS A VERY BIG HAMMER.
573
574config DAVINCI_WATCHDOG
575	tristate "DaVinci watchdog"
576	depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
577	select WATCHDOG_CORE
578	help
579	  Say Y here if to include support for the watchdog timer
580	  in the DaVinci DM644x/DM646x or Keystone processors.
581	  To compile this driver as a module, choose M here: the
582	  module will be called davinci_wdt.
583
584	  NOTE: once enabled, this timer cannot be disabled.
585	  Say N if you are unsure.
586
587config K3_RTI_WATCHDOG
588	tristate "Texas Instruments K3 RTI watchdog"
589	depends on ARCH_K3 || COMPILE_TEST
590	select WATCHDOG_CORE
591	help
592	  Say Y here if you want to include support for the K3 watchdog
593	  timer (RTI module) available in the K3 generation of processors.
594
595config ORION_WATCHDOG
596	tristate "Orion watchdog"
597	depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || (COMPILE_TEST && !ARCH_EBSA110)
598	depends on ARM
599	select WATCHDOG_CORE
600	help
601	  Say Y here if to include support for the watchdog timer
602	  in the Marvell Orion5x and Kirkwood ARM SoCs.
603	  To compile this driver as a module, choose M here: the
604	  module will be called orion_wdt.
605
606config RN5T618_WATCHDOG
607	tristate "Ricoh RN5T618 watchdog"
608	depends on MFD_RN5T618 || COMPILE_TEST
609	select WATCHDOG_CORE
610	help
611	  If you say yes here you get support for watchdog on the Ricoh
612	  RN5T618 PMIC.
613
614	  This driver can also be built as a module.  If so, the module
615	  will be called rn5t618_wdt.
616
617config SUNXI_WATCHDOG
618	tristate "Allwinner SoCs watchdog support"
619	depends on ARCH_SUNXI || COMPILE_TEST
620	select WATCHDOG_CORE
621	help
622	  Say Y here to include support for the watchdog timer
623	  in Allwinner SoCs.
624	  To compile this driver as a module, choose M here: the
625	  module will be called sunxi_wdt.
626
627config COH901327_WATCHDOG
628	bool "ST-Ericsson COH 901 327 watchdog"
629	depends on ARCH_U300 || (ARM && COMPILE_TEST)
630	default y if MACH_U300
631	select WATCHDOG_CORE
632	help
633	  Say Y here to include Watchdog timer support for the
634	  watchdog embedded into the ST-Ericsson U300 series platforms.
635	  This watchdog is used to reset the system and thus cannot be
636	  compiled as a module.
637
638config NPCM7XX_WATCHDOG
639	tristate "Nuvoton NPCM750 watchdog"
640	depends on ARCH_NPCM || COMPILE_TEST
641	default y if ARCH_NPCM7XX
642	select WATCHDOG_CORE
643	help
644	  Say Y here to include Watchdog timer support for the
645	  watchdog embedded into the NPCM7xx.
646	  This watchdog is used to reset the system and thus cannot be
647	  compiled as a module.
648
649config TWL4030_WATCHDOG
650	tristate "TWL4030 Watchdog"
651	depends on TWL4030_CORE
652	select WATCHDOG_CORE
653	help
654	  Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
655	  watchdog timer support for TWL4030 chips.
656
657config STMP3XXX_RTC_WATCHDOG
658	tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
659	depends on RTC_DRV_STMP || COMPILE_TEST
660	select WATCHDOG_CORE
661	help
662	  Say Y here to include support for the watchdog timer inside
663	  the RTC for the STMP37XX/378X or i.MX23/28 SoC.
664	  To compile this driver as a module, choose M here: the
665	  module will be called stmp3xxx_rtc_wdt.
666
667config TS4800_WATCHDOG
668	tristate "TS-4800 Watchdog"
669	depends on HAS_IOMEM && OF
670	depends on SOC_IMX51 || COMPILE_TEST
671	select WATCHDOG_CORE
672	select MFD_SYSCON
673	help
674	  Technologic Systems TS-4800 has watchdog timer implemented in
675	  an external FPGA. Say Y here if you want to support for the
676	  watchdog timer on TS-4800 board.
677
678config TS72XX_WATCHDOG
679	tristate "TS-72XX SBC Watchdog"
680	depends on MACH_TS72XX || COMPILE_TEST
681	select WATCHDOG_CORE
682	help
683	  Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
684	  watchdog timer implemented in a external CPLD chip. Say Y here
685	  if you want to support for the watchdog timer on TS-72XX boards.
686
687	  To compile this driver as a module, choose M here: the
688	  module will be called ts72xx_wdt.
689
690config MAX63XX_WATCHDOG
691	tristate "Max63xx watchdog"
692	depends on HAS_IOMEM
693	select WATCHDOG_CORE
694	help
695	  Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
696
697config MAX77620_WATCHDOG
698	tristate "Maxim Max77620 Watchdog Timer"
699	depends on MFD_MAX77620 || COMPILE_TEST
700	select WATCHDOG_CORE
701	help
702	 This is the driver for the Max77620 watchdog timer.
703	 Say 'Y' here to enable the watchdog timer support for
704	 MAX77620 chips. To compile this driver as a module,
705	 choose M here: the module will be called max77620_wdt.
706
707config IMX2_WDT
708	tristate "IMX2+ Watchdog"
709	depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
710	select REGMAP_MMIO
711	select WATCHDOG_CORE
712	help
713	  This is the driver for the hardware watchdog
714	  on the Freescale IMX2 and later processors.
715	  If you have one of these processors and wish to have
716	  watchdog support enabled, say Y, otherwise say N.
717
718	  To compile this driver as a module, choose M here: the
719	  module will be called imx2_wdt.
720
721config IMX_SC_WDT
722	tristate "IMX SC Watchdog"
723	depends on HAVE_ARM_SMCCC
724	depends on IMX_SCU
725	select WATCHDOG_CORE
726	help
727	  This is the driver for the system controller watchdog
728	  on the NXP i.MX SoCs with system controller inside, the
729	  watchdog driver will call ARM SMC API and trap into
730	  ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
731	  will request system controller to execute the operations.
732	  If you have one of these processors and wish to have
733	  watchdog support enabled, say Y, otherwise say N.
734
735	  To compile this driver as a module, choose M here: the
736	  module will be called imx_sc_wdt.
737
738config IMX7ULP_WDT
739	tristate "IMX7ULP Watchdog"
740	depends on ARCH_MXC || COMPILE_TEST
741	select WATCHDOG_CORE
742	help
743	  This is the driver for the hardware watchdog on the Freescale
744	  IMX7ULP and later processors. If you have one of these
745	  processors and wish to have watchdog support enabled,
746	  say Y, otherwise say N.
747
748	  To compile this driver as a module, choose M here: the
749	  module will be called imx7ulp_wdt.
750
751config UX500_WATCHDOG
752	tristate "ST-Ericsson Ux500 watchdog"
753	depends on MFD_DB8500_PRCMU
754	select WATCHDOG_CORE
755	default y
756	help
757	  Say Y here to include Watchdog timer support for the watchdog
758	  existing in the prcmu of ST-Ericsson Ux500 series platforms.
759
760	  To compile this driver as a module, choose M here: the
761	  module will be called ux500_wdt.
762
763config RETU_WATCHDOG
764	tristate "Retu watchdog"
765	depends on MFD_RETU
766	select WATCHDOG_CORE
767	help
768	  Retu watchdog driver for Nokia Internet Tablets (770, N800,
769	  N810). At least on N800 the watchdog cannot be disabled, so
770	  this driver is essential and you should enable it.
771
772	  To compile this driver as a module, choose M here: the
773	  module will be called retu_wdt.
774
775config MOXART_WDT
776	tristate "MOXART watchdog"
777	depends on ARCH_MOXART || COMPILE_TEST
778	help
779	  Say Y here to include Watchdog timer support for the watchdog
780	  existing on the MOXA ART SoC series platforms.
781
782	  To compile this driver as a module, choose M here: the
783	  module will be called moxart_wdt.
784
785config SIRFSOC_WATCHDOG
786	tristate "SiRFSOC watchdog"
787	depends on ARCH_SIRF || COMPILE_TEST
788	select WATCHDOG_CORE
789	default y
790	help
791	  Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
792	  the watchdog triggers the system will be reset.
793
794config ST_LPC_WATCHDOG
795	tristate "STMicroelectronics LPC Watchdog"
796	depends on ARCH_STI || COMPILE_TEST
797	depends on OF
798	select WATCHDOG_CORE
799	help
800	  Say Y here to include STMicroelectronics Low Power Controller
801	  (LPC) based Watchdog timer support.
802
803	  To compile this driver as a module, choose M here: the
804	  module will be called st_lpc_wdt.
805
806config TEGRA_WATCHDOG
807	tristate "Tegra watchdog"
808	depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
809	select WATCHDOG_CORE
810	help
811	  Say Y here to include support for the watchdog timer
812	  embedded in NVIDIA Tegra SoCs.
813
814	  To compile this driver as a module, choose M here: the
815	  module will be called tegra_wdt.
816
817config QCOM_WDT
818	tristate "QCOM watchdog"
819	depends on HAS_IOMEM
820	depends on ARCH_QCOM || COMPILE_TEST
821	select WATCHDOG_CORE
822	help
823	  Say Y here to include Watchdog timer support for the watchdog found
824	  on QCOM chipsets.  Currently supported targets are the MSM8960,
825	  APQ8064, and IPQ8064.
826
827	  To compile this driver as a module, choose M here: the
828	  module will be called qcom_wdt.
829
830config MESON_GXBB_WATCHDOG
831	tristate "Amlogic Meson GXBB SoCs watchdog support"
832	depends on ARCH_MESON || COMPILE_TEST
833	select WATCHDOG_CORE
834	help
835	  Say Y here to include support for the watchdog timer
836	  in Amlogic Meson GXBB SoCs.
837	  To compile this driver as a module, choose M here: the
838	  module will be called meson_gxbb_wdt.
839
840config MESON_WATCHDOG
841	tristate "Amlogic Meson SoCs watchdog support"
842	depends on ARCH_MESON || COMPILE_TEST
843	select WATCHDOG_CORE
844	help
845	  Say Y here to include support for the watchdog timer
846	  in Amlogic Meson SoCs.
847	  To compile this driver as a module, choose M here: the
848	  module will be called meson_wdt.
849
850config MEDIATEK_WATCHDOG
851	tristate "Mediatek SoCs watchdog support"
852	depends on ARCH_MEDIATEK || COMPILE_TEST
853	select WATCHDOG_CORE
854	select RESET_CONTROLLER
855	help
856	  Say Y here to include support for the watchdog timer
857	  in Mediatek SoCs.
858	  To compile this driver as a module, choose M here: the
859	  module will be called mtk_wdt.
860
861config DIGICOLOR_WATCHDOG
862	tristate "Conexant Digicolor SoCs watchdog support"
863	depends on ARCH_DIGICOLOR || COMPILE_TEST
864	select WATCHDOG_CORE
865	help
866	  Say Y here to include support for the watchdog timer
867	  in Conexant Digicolor SoCs.
868	  To compile this driver as a module, choose M here: the
869	  module will be called digicolor_wdt.
870
871config ARM_SMC_WATCHDOG
872	tristate "ARM Secure Monitor Call based watchdog support"
873	depends on ARM || ARM64
874	depends on OF
875	depends on HAVE_ARM_SMCCC
876	select WATCHDOG_CORE
877	help
878	  Say Y here to include support for a watchdog timer
879	  implemented by the EL3 Secure Monitor on ARM platforms.
880	  Requires firmware support.
881	  To compile this driver as a module, choose M here: the
882	  module will be called arm_smc_wdt.
883
884config LPC18XX_WATCHDOG
885	tristate "LPC18xx/43xx Watchdog"
886	depends on ARCH_LPC18XX || COMPILE_TEST
887	depends on HAS_IOMEM
888	select WATCHDOG_CORE
889	help
890	  Say Y here if to include support for the watchdog timer
891	  in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
892	  processors.
893	  To compile this driver as a module, choose M here: the
894	  module will be called lpc18xx_wdt.
895
896config ATLAS7_WATCHDOG
897	tristate "CSRatlas7 watchdog"
898	depends on ARCH_ATLAS7 || COMPILE_TEST
899	help
900	  Say Y here to include Watchdog timer support for the watchdog
901	  existing on the CSRatlas7 series platforms.
902
903	  To compile this driver as a module, choose M here: the
904	  module will be called atlas7_wdt.
905
906config RENESAS_WDT
907	tristate "Renesas WDT Watchdog"
908	depends on ARCH_RENESAS || COMPILE_TEST
909	select WATCHDOG_CORE
910	help
911	  This driver adds watchdog support for the integrated watchdogs in the
912	  Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
913
914config RENESAS_RZAWDT
915	tristate "Renesas RZ/A WDT Watchdog"
916	depends on ARCH_RENESAS || COMPILE_TEST
917	select WATCHDOG_CORE
918	help
919	  This driver adds watchdog support for the integrated watchdogs in the
920	  Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
921
922config ASPEED_WATCHDOG
923	tristate "Aspeed BMC watchdog support"
924	depends on ARCH_ASPEED || COMPILE_TEST
925	select WATCHDOG_CORE
926	help
927	  Say Y here to include support for the watchdog timer
928	  in Aspeed BMC SoCs.
929
930	  This driver is required to reboot the SoC.
931
932	  To compile this driver as a module, choose M here: the
933	  module will be called aspeed_wdt.
934
935config ZX2967_WATCHDOG
936	tristate "ZTE zx2967 SoCs watchdog support"
937	depends on ARCH_ZX
938	select WATCHDOG_CORE
939	help
940	  Say Y here to include support for the watchdog timer
941	  in ZTE zx2967 SoCs.
942	  To compile this driver as a module, choose M here: the
943	  module will be called zx2967_wdt.
944
945config STM32_WATCHDOG
946	tristate "STM32 Independent WatchDoG (IWDG) support"
947	depends on ARCH_STM32
948	select WATCHDOG_CORE
949	default y
950	help
951	  Say Y here to include support for the watchdog timer
952	  in stm32 SoCs.
953
954	  To compile this driver as a module, choose M here: the
955	  module will be called stm32_iwdg.
956
957config STPMIC1_WATCHDOG
958	tristate "STPMIC1 PMIC watchdog support"
959	depends on MFD_STPMIC1
960	select WATCHDOG_CORE
961	help
962	  Say Y here to include watchdog support embedded into STPMIC1 PMIC.
963	  If the watchdog timer expires, stpmic1 will shut down all its power
964	  supplies.
965
966	  To compile this driver as a module, choose M here: the
967	  module will be called spmic1_wdt.
968
969config UNIPHIER_WATCHDOG
970	tristate "UniPhier watchdog support"
971	depends on ARCH_UNIPHIER || COMPILE_TEST
972	depends on OF && MFD_SYSCON
973	select WATCHDOG_CORE
974	help
975	  Say Y here to include support watchdog timer embedded
976	  into the UniPhier system.
977
978	  To compile this driver as a module, choose M here: the
979	  module will be called uniphier_wdt.
980
981config RTD119X_WATCHDOG
982	bool "Realtek RTD119x/RTD129x watchdog support"
983	depends on ARCH_REALTEK || COMPILE_TEST
984	depends on OF
985	select WATCHDOG_CORE
986	default ARCH_REALTEK
987	help
988	  Say Y here to include support for the watchdog timer in
989	  Realtek RTD1295 SoCs.
990
991config SPRD_WATCHDOG
992	tristate "Spreadtrum watchdog support"
993	depends on ARCH_SPRD || COMPILE_TEST
994	select WATCHDOG_CORE
995	help
996	  Say Y here to include watchdog timer supported
997	  by Spreadtrum system.
998
999config PM8916_WATCHDOG
1000	tristate "QCOM PM8916 pmic watchdog"
1001	depends on OF && MFD_SPMI_PMIC
1002	select WATCHDOG_CORE
1003	help
1004	  Say Y here to include support watchdog timer embedded into the
1005	  pm8916 module.
1006
1007# X86 (i386 + ia64 + x86_64) Architecture
1008
1009config ACQUIRE_WDT
1010	tristate "Acquire SBC Watchdog Timer"
1011	depends on X86
1012	help
1013	  This is the driver for the hardware watchdog on Single Board
1014	  Computers produced by Acquire Inc (and others). This watchdog
1015	  simply watches your kernel to make sure it doesn't freeze, and if
1016	  it does, it reboots your computer after a certain amount of time.
1017
1018	  To compile this driver as a module, choose M here: the
1019	  module will be called acquirewdt.
1020
1021	  Most people will say N.
1022
1023config ADVANTECH_WDT
1024	tristate "Advantech SBC Watchdog Timer"
1025	depends on X86
1026	help
1027	  If you are configuring a Linux kernel for the Advantech single-board
1028	  computer, say `Y' here to support its built-in watchdog timer
1029	  feature. More information can be found at
1030	  <https://www.advantech.com.tw/products/>
1031
1032config ALIM1535_WDT
1033	tristate "ALi M1535 PMU Watchdog Timer"
1034	depends on X86 && PCI
1035	help
1036	  This is the driver for the hardware watchdog on the ALi M1535 PMU.
1037
1038	  To compile this driver as a module, choose M here: the
1039	  module will be called alim1535_wdt.
1040
1041	  Most people will say N.
1042
1043config ALIM7101_WDT
1044	tristate "ALi M7101 PMU Computer Watchdog"
1045	depends on PCI
1046	help
1047	  This is the driver for the hardware watchdog on the ALi M7101 PMU
1048	  as used in the x86 Cobalt servers and also found in some
1049	  SPARC Netra servers too.
1050
1051	  To compile this driver as a module, choose M here: the
1052	  module will be called alim7101_wdt.
1053
1054	  Most people will say N.
1055
1056config EBC_C384_WDT
1057	tristate "WinSystems EBC-C384 Watchdog Timer"
1058	depends on X86
1059	select ISA_BUS_API
1060	select WATCHDOG_CORE
1061	help
1062	  Enables watchdog timer support for the watchdog timer on the
1063	  WinSystems EBC-C384 motherboard. The timeout may be configured via
1064	  the timeout module parameter.
1065
1066config F71808E_WDT
1067	tristate "Fintek F718xx, F818xx Super I/O Watchdog"
1068	depends on X86
1069	help
1070	  This is the driver for the hardware watchdog on the Fintek F71808E,
1071	  F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and
1072	  F81866 Super I/O controllers.
1073
1074	  You can compile this driver directly into the kernel, or use
1075	  it as a module.  The module will be called f71808e_wdt.
1076
1077config SP5100_TCO
1078	tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
1079	depends on X86 && PCI
1080	select WATCHDOG_CORE
1081	help
1082	  Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
1083	  (Total Cost of Ownership) timer is a watchdog timer that will reboot
1084	  the machine after its expiration. The expiration time can be
1085	  configured with the "heartbeat" parameter.
1086
1087	  To compile this driver as a module, choose M here: the
1088	  module will be called sp5100_tco.
1089
1090config GEODE_WDT
1091	tristate "AMD Geode CS5535/CS5536 Watchdog"
1092	depends on CS5535_MFGPT
1093	help
1094	  This driver enables a watchdog capability built into the
1095	  CS5535/CS5536 companion chips for the AMD Geode GX and LX
1096	  processors.  This watchdog watches your kernel to make sure
1097	  it doesn't freeze, and if it does, it reboots your computer after
1098	  a certain amount of time.
1099
1100	  You can compile this driver directly into the kernel, or use
1101	  it as a module.  The module will be called geodewdt.
1102
1103config SC520_WDT
1104	tristate "AMD Elan SC520 processor Watchdog"
1105	depends on MELAN || COMPILE_TEST
1106	help
1107	  This is the driver for the hardware watchdog built in to the
1108	  AMD "Elan" SC520 microcomputer commonly used in embedded systems.
1109	  This watchdog simply watches your kernel to make sure it doesn't
1110	  freeze, and if it does, it reboots your computer after a certain
1111	  amount of time.
1112
1113	  You can compile this driver directly into the kernel, or use
1114	  it as a module.  The module will be called sc520_wdt.
1115
1116config SBC_FITPC2_WATCHDOG
1117	tristate "Compulab SBC-FITPC2 watchdog"
1118	depends on X86
1119	help
1120	  This is the driver for the built-in watchdog timer on the fit-PC2,
1121	  fit-PC2i, CM-iAM single-board computers made by Compulab.
1122
1123	  It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
1124	  When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
1125
1126	  Entering BIOS setup temporary disables watchdog operation regardless to current state,
1127	  so system will not be restarted while user in BIOS setup.
1128
1129	  Once watchdog was enabled the system will be restarted every
1130	  "Watchdog Timer Value" period, so to prevent it user can restart or
1131	  disable the watchdog.
1132
1133	  To compile this driver as a module, choose M here: the
1134	  module will be called sbc_fitpc2_wdt.
1135
1136	  Most people will say N.
1137
1138config EUROTECH_WDT
1139	tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1140	depends on X86
1141	help
1142	  Enable support for the watchdog timer on the Eurotech CPU-1220 and
1143	  CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
1144	  information are at <http://www.eurotech.it/>.
1145
1146config IB700_WDT
1147	tristate "IB700 SBC Watchdog Timer"
1148	depends on X86
1149	help
1150	  This is the driver for the hardware watchdog on the IB700 Single
1151	  Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
1152	  simply watches your kernel to make sure it doesn't freeze, and if
1153	  it does, it reboots your computer after a certain amount of time.
1154
1155	  This driver is like the WDT501 driver but for slightly different hardware.
1156
1157	  To compile this driver as a module, choose M here: the
1158	  module will be called ib700wdt.
1159
1160	  Most people will say N.
1161
1162config IBMASR
1163	tristate "IBM Automatic Server Restart"
1164	depends on X86
1165	help
1166	  This is the driver for the IBM Automatic Server Restart watchdog
1167	  timer built-in into some eServer xSeries machines.
1168
1169	  To compile this driver as a module, choose M here: the
1170	  module will be called ibmasr.
1171
1172config WAFER_WDT
1173	tristate "ICP Single Board Computer Watchdog Timer"
1174	depends on X86
1175	help
1176	  This is a driver for the hardware watchdog on the ICP Single
1177	  Board Computer. This driver is working on (at least) the following
1178	  IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1179
1180	  To compile this driver as a module, choose M here: the
1181	  module will be called wafer5823wdt.
1182
1183config I6300ESB_WDT
1184	tristate "Intel 6300ESB Timer/Watchdog"
1185	depends on PCI
1186	select WATCHDOG_CORE
1187	help
1188	  Hardware driver for the watchdog timer built into the Intel
1189	  6300ESB controller hub.
1190
1191	  To compile this driver as a module, choose M here: the
1192	  module will be called i6300esb.
1193
1194config IE6XX_WDT
1195	tristate "Intel Atom E6xx Watchdog"
1196	depends on X86 && PCI
1197	select WATCHDOG_CORE
1198	select MFD_CORE
1199	select LPC_SCH
1200	help
1201	  Hardware driver for the watchdog timer built into the Intel
1202	  Atom E6XX (TunnelCreek) processor.
1203
1204	  To compile this driver as a module, choose M here: the
1205	  module will be called ie6xx_wdt.
1206
1207config INTEL_SCU_WATCHDOG
1208	bool "Intel SCU Watchdog for Mobile Platforms"
1209	depends on X86_INTEL_MID
1210	help
1211	  Hardware driver for the watchdog time built into the Intel SCU
1212	  for Intel Mobile Platforms.
1213
1214	  To compile this driver as a module, choose M here.
1215
1216config INTEL_MID_WATCHDOG
1217	tristate "Intel MID Watchdog Timer"
1218	depends on X86_INTEL_MID
1219	select WATCHDOG_CORE
1220	help
1221	  Watchdog timer driver built into the Intel SCU for Intel MID
1222	  Platforms.
1223
1224	  This driver currently supports only the watchdog evolution
1225	  implementation in SCU, available for Merrifield generation.
1226
1227	  To compile this driver as a module, choose M here.
1228
1229config ITCO_WDT
1230	tristate "Intel TCO Timer/Watchdog"
1231	depends on (X86 || IA64) && PCI
1232	select WATCHDOG_CORE
1233	depends on I2C || I2C=n
1234	depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT
1235	select LPC_ICH if !EXPERT
1236	select I2C_I801 if !EXPERT && I2C
1237	help
1238	  Hardware driver for the intel TCO timer based watchdog devices.
1239	  These drivers are included in the Intel 82801 I/O Controller
1240	  Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1241	  controller hub.
1242
1243	  The TCO (Total Cost of Ownership) timer is a watchdog timer
1244	  that will reboot the machine after its second expiration. The
1245	  expiration time can be configured with the "heartbeat" parameter.
1246
1247	  On some motherboards the driver may fail to reset the chipset's
1248	  NO_REBOOT flag which prevents the watchdog from rebooting the
1249	  machine. If this is the case you will get a kernel message like
1250	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1251
1252	  To compile this driver as a module, choose M here: the
1253	  module will be called iTCO_wdt.
1254
1255config ITCO_VENDOR_SUPPORT
1256	bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1257	depends on ITCO_WDT
1258	help
1259	  Add vendor specific support to the intel TCO timer based watchdog
1260	  devices. At this moment we only have additional support for some
1261	  SuperMicro Inc. motherboards.
1262
1263config IT8712F_WDT
1264	tristate "IT8712F (Smart Guardian) Watchdog Timer"
1265	depends on X86
1266	help
1267	  This is the driver for the built-in watchdog timer on the IT8712F
1268	  Super I/0 chipset used on many motherboards.
1269
1270	  If the driver does not work, then make sure that the game port in
1271	  the BIOS is enabled.
1272
1273	  To compile this driver as a module, choose M here: the
1274	  module will be called it8712f_wdt.
1275
1276config IT87_WDT
1277	tristate "IT87 Watchdog Timer"
1278	depends on X86
1279	select WATCHDOG_CORE
1280	help
1281	  This is the driver for the hardware watchdog on the ITE IT8607,
1282	  IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1283	  IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1284	  IT8783 Super I/O chips.
1285
1286	  This watchdog simply watches your kernel to make sure it doesn't
1287	  freeze, and if it does, it reboots your computer after a certain
1288	  amount of time.
1289
1290	  To compile this driver as a module, choose M here: the module will
1291	  be called it87_wdt.
1292
1293config HP_WATCHDOG
1294	tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1295	select WATCHDOG_CORE
1296	depends on X86 && PCI
1297	help
1298	  A software monitoring watchdog and NMI handling driver. This driver
1299	  will detect lockups and provide a stack trace. This is a driver that
1300	  will only load on an HP ProLiant system with a minimum of iLO2 support.
1301	  To compile this driver as a module, choose M here: the module will be
1302	  called hpwdt.
1303
1304config HPWDT_NMI_DECODING
1305	bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1306	depends on HP_WATCHDOG
1307	default y
1308	help
1309	  Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1310	  "Generate NMI to System" virtual button.  When an NMI is claimed
1311	  by the driver, panic is called.
1312
1313config KEMPLD_WDT
1314	tristate "Kontron COM Watchdog Timer"
1315	depends on MFD_KEMPLD
1316	select WATCHDOG_CORE
1317	help
1318	  Support for the PLD watchdog on some Kontron ETX and COMexpress
1319	  (ETXexpress) modules
1320
1321	  This driver can also be built as a module. If so, the module will be
1322	  called kempld_wdt.
1323
1324config SC1200_WDT
1325	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1326	depends on X86
1327	help
1328	  This is a driver for National Semiconductor PC87307/PC97307 hardware
1329	  watchdog cards as found on the SC1200. This watchdog is mainly used
1330	  for power management purposes and can be used to power down the device
1331	  during inactivity periods (includes interrupt activity monitoring).
1332
1333	  To compile this driver as a module, choose M here: the
1334	  module will be called sc1200wdt.
1335
1336	  Most people will say N.
1337
1338config SCx200_WDT
1339	tristate "National Semiconductor SCx200 Watchdog"
1340	depends on SCx200 && PCI
1341	help
1342	  Enable the built-in watchdog timer support on the National
1343	  Semiconductor SCx200 processors.
1344
1345	  If compiled as a module, it will be called scx200_wdt.
1346
1347config PC87413_WDT
1348	tristate "NS PC87413 watchdog"
1349	depends on X86
1350	help
1351	  This is the driver for the hardware watchdog on the PC87413 chipset
1352	  This watchdog simply watches your kernel to make sure it doesn't
1353	  freeze, and if it does, it reboots your computer after a certain
1354	  amount of time.
1355
1356	  To compile this driver as a module, choose M here: the
1357	  module will be called pc87413_wdt.
1358
1359	  Most people will say N.
1360
1361config NV_TCO
1362	tristate "nVidia TCO Timer/Watchdog"
1363	depends on X86 && PCI
1364	help
1365	  Hardware driver for the TCO timer built into the nVidia Hub family
1366	  (such as the MCP51).  The TCO (Total Cost of Ownership) timer is a
1367	  watchdog timer that will reboot the machine after its second
1368	  expiration. The expiration time can be configured with the
1369	  "heartbeat" parameter.
1370
1371	  On some motherboards the driver may fail to reset the chipset's
1372	  NO_REBOOT flag which prevents the watchdog from rebooting the
1373	  machine. If this is the case you will get a kernel message like
1374	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1375
1376	  To compile this driver as a module, choose M here: the
1377	  module will be called nv_tco.
1378
1379config RDC321X_WDT
1380	tristate "RDC R-321x SoC watchdog"
1381	depends on X86_RDC321X || COMPILE_TEST
1382	depends on PCI
1383	help
1384	  This is the driver for the built in hardware watchdog
1385	  in the RDC R-321x SoC.
1386
1387	  To compile this driver as a module, choose M here: the
1388	  module will be called rdc321x_wdt.
1389
1390config 60XX_WDT
1391	tristate "SBC-60XX Watchdog Timer"
1392	depends on X86
1393	help
1394	  This driver can be used with the watchdog timer found on some
1395	  single board computers, namely the 6010 PII based computer.
1396	  It may well work with other cards.  It reads port 0x443 to enable
1397	  and re-set the watchdog timer, and reads port 0x45 to disable
1398	  the watchdog.  If you have a card that behave in similar ways,
1399	  you can probably make this driver work with your card as well.
1400
1401	  You can compile this driver directly into the kernel, or use
1402	  it as a module.  The module will be called sbc60xxwdt.
1403
1404config SBC8360_WDT
1405	tristate "SBC8360 Watchdog Timer"
1406	depends on X86_32
1407	help
1408
1409	  This is the driver for the hardware watchdog on the SBC8360 Single
1410	  Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1411
1412	  To compile this driver as a module, choose M here: the
1413	  module will be called sbc8360.
1414
1415	  Most people will say N.
1416
1417config SBC7240_WDT
1418	tristate "SBC Nano 7240 Watchdog Timer"
1419	depends on X86_32 && !UML
1420	help
1421	  This is the driver for the hardware watchdog found on the IEI
1422	  single board computers EPIC Nano 7240 (and likely others). This
1423	  watchdog simply watches your kernel to make sure it doesn't freeze,
1424	  and if it does, it reboots your computer after a certain amount of
1425	  time.
1426
1427	  To compile this driver as a module, choose M here: the
1428	  module will be called sbc7240_wdt.
1429
1430config CPU5_WDT
1431	tristate "SMA CPU5 Watchdog"
1432	depends on X86
1433	help
1434	  TBD.
1435	  To compile this driver as a module, choose M here: the
1436	  module will be called cpu5wdt.
1437
1438config SMSC_SCH311X_WDT
1439	tristate "SMSC SCH311X Watchdog Timer"
1440	depends on X86
1441	help
1442	  This is the driver for the hardware watchdog timer on the
1443	  SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1444	  (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1445	  serial ports).
1446
1447	  To compile this driver as a module, choose M here: the
1448	  module will be called sch311x_wdt.
1449
1450config SMSC37B787_WDT
1451	tristate "Winbond SMsC37B787 Watchdog Timer"
1452	depends on X86
1453	help
1454	  This is the driver for the hardware watchdog component on the
1455	  Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1456	  from Vision Systems and maybe others.
1457
1458	  This watchdog simply watches your kernel to make sure it doesn't
1459	  freeze, and if it does, it reboots your computer after a certain
1460	  amount of time.
1461
1462	  Usually a userspace daemon will notify the kernel WDT driver that
1463	  userspace is still alive, at regular intervals.
1464
1465	  To compile this driver as a module, choose M here: the
1466	  module will be called smsc37b787_wdt.
1467
1468	  Most people will say N.
1469
1470config TQMX86_WDT
1471	tristate "TQ-Systems TQMX86 Watchdog Timer"
1472	depends on X86
1473	select WATCHDOG_CORE
1474	help
1475	This is the driver for the hardware watchdog timer in the TQMX86 IO
1476	controller found on some of their ComExpress Modules.
1477
1478	To compile this driver as a module, choose M here; the module
1479	will be called tqmx86_wdt.
1480
1481	Most people will say N.
1482
1483config VIA_WDT
1484	tristate "VIA Watchdog Timer"
1485	depends on X86 && PCI
1486	select WATCHDOG_CORE
1487	help
1488	This is the driver for the hardware watchdog timer on VIA
1489	southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1490
1491	To compile this driver as a module, choose M here; the module
1492	will be called via_wdt.
1493
1494	Most people will say N.
1495
1496config W83627HF_WDT
1497	tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1498	depends on X86
1499	select WATCHDOG_CORE
1500	help
1501	  This is the driver for the hardware watchdog on the following
1502	  Super I/O chips.
1503		W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1504		W83637HF
1505		W83667HG/HG-B
1506		W83687THF
1507		W83697HF
1508		W83697UG
1509		NCT6775
1510		NCT6776
1511		NCT6779
1512		NCT6791
1513		NCT6792
1514		NCT6102D/04D/06D
1515		NCT6116D
1516
1517	  This watchdog simply watches your kernel to make sure it doesn't
1518	  freeze, and if it does, it reboots your computer after a certain
1519	  amount of time.
1520
1521	  To compile this driver as a module, choose M here: the
1522	  module will be called w83627hf_wdt.
1523
1524	  Most people will say N.
1525
1526config W83877F_WDT
1527	tristate "W83877F (EMACS) Watchdog Timer"
1528	depends on X86
1529	help
1530	  This is the driver for the hardware watchdog on the W83877F chipset
1531	  as used in EMACS PC-104 motherboards (and likely others).  This
1532	  watchdog simply watches your kernel to make sure it doesn't freeze,
1533	  and if it does, it reboots your computer after a certain amount of
1534	  time.
1535
1536	  To compile this driver as a module, choose M here: the
1537	  module will be called w83877f_wdt.
1538
1539	  Most people will say N.
1540
1541config W83977F_WDT
1542	tristate "W83977F (PCM-5335) Watchdog Timer"
1543	depends on X86
1544	help
1545	  This is the driver for the hardware watchdog on the W83977F I/O chip
1546	  as used in AAEON's PCM-5335 SBC (and likely others).  This
1547	  watchdog simply watches your kernel to make sure it doesn't freeze,
1548	  and if it does, it reboots your computer after a certain amount of
1549	  time.
1550
1551	  To compile this driver as a module, choose M here: the
1552	  module will be called w83977f_wdt.
1553
1554config MACHZ_WDT
1555	tristate "ZF MachZ Watchdog"
1556	depends on X86
1557	help
1558	  If you are using a ZF Micro MachZ processor, say Y here, otherwise
1559	  N.  This is the driver for the watchdog timer built-in on that
1560	  processor using ZF-Logic interface.  This watchdog simply watches
1561	  your kernel to make sure it doesn't freeze, and if it does, it
1562	  reboots your computer after a certain amount of time.
1563
1564	  To compile this driver as a module, choose M here: the
1565	  module will be called machzwd.
1566
1567config SBC_EPX_C3_WATCHDOG
1568	tristate "Winsystems SBC EPX-C3 watchdog"
1569	depends on X86
1570	help
1571	  This is the driver for the built-in watchdog timer on the EPX-C3
1572	  Single-board computer made by Winsystems, Inc.
1573
1574	  *Note*: This hardware watchdog is not probeable and thus there
1575	  is no way to know if writing to its IO address will corrupt
1576	  your system or have any real effect.  The only way to be sure
1577	  that this driver does what you want is to make sure you
1578	  are running it on an EPX-C3 from Winsystems with the watchdog
1579	  timer at IO address 0x1ee and 0x1ef.  It will write to both those
1580	  IO ports.  Basically, the assumption is made that if you compile
1581	  this driver into your kernel and/or load it as a module, that you
1582	  know what you are doing and that you are in fact running on an
1583	  EPX-C3 board!
1584
1585	  To compile this driver as a module, choose M here: the
1586	  module will be called sbc_epx_c3.
1587
1588config INTEL_MEI_WDT
1589	tristate "Intel MEI iAMT Watchdog"
1590	depends on INTEL_MEI && X86
1591	select WATCHDOG_CORE
1592	help
1593	  A device driver for the Intel MEI iAMT watchdog.
1594
1595	  The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1596	  Whenever the OS hangs or crashes, iAMT will send an event
1597	  to any subscriber to this event. The watchdog doesn't reset the
1598	  the platform.
1599
1600	  To compile this driver as a module, choose M here:
1601	  the module will be called mei_wdt.
1602
1603config NI903X_WDT
1604	tristate "NI 903x/913x Watchdog"
1605	depends on X86 && ACPI
1606	select WATCHDOG_CORE
1607	help
1608	  This is the driver for the watchdog timer on the National Instruments
1609	  903x/913x real-time controllers.
1610
1611	  To compile this driver as a module, choose M here: the module will be
1612	  called ni903x_wdt.
1613
1614config NIC7018_WDT
1615	tristate "NIC7018 Watchdog"
1616	depends on X86 && ACPI
1617	select WATCHDOG_CORE
1618	help
1619	  Support for National Instruments NIC7018 Watchdog.
1620
1621	  To compile this driver as a module, choose M here: the module will be
1622	  called nic7018_wdt.
1623
1624# M68K Architecture
1625
1626config M54xx_WATCHDOG
1627	tristate "MCF54xx watchdog support"
1628	depends on M548x
1629	help
1630	  To compile this driver as a module, choose M here: the
1631	  module will be called m54xx_wdt.
1632
1633# MicroBlaze Architecture
1634
1635# MIPS Architecture
1636
1637config ATH79_WDT
1638	tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1639	depends on ATH79 || (ARM && COMPILE_TEST)
1640	help
1641	  Hardware driver for the built-in watchdog timer on the Atheros
1642	  AR71XX/AR724X/AR913X SoCs.
1643
1644config BCM47XX_WDT
1645	tristate "Broadcom BCM47xx Watchdog Timer"
1646	depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1647	select WATCHDOG_CORE
1648	help
1649	  Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1650
1651config RC32434_WDT
1652	tristate "IDT RC32434 SoC Watchdog Timer"
1653	depends on MIKROTIK_RB532
1654	help
1655	  Hardware driver for the IDT RC32434 SoC built-in
1656	  watchdog timer.
1657
1658	  To compile this driver as a module, choose M here: the
1659	  module will be called rc32434_wdt.
1660
1661config INDYDOG
1662	tristate "Indy/I2 Hardware Watchdog"
1663	depends on SGI_HAS_INDYDOG
1664	help
1665	  Hardware driver for the Indy's/I2's watchdog. This is a
1666	  watchdog timer that will reboot the machine after a 60 second
1667	  timer expired and no process has written to /dev/watchdog during
1668	  that time.
1669
1670config JZ4740_WDT
1671	tristate "Ingenic jz4740 SoC hardware watchdog"
1672	depends on MIPS
1673	depends on COMMON_CLK
1674	select WATCHDOG_CORE
1675	select MFD_SYSCON
1676	help
1677	  Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1678
1679config WDT_MTX1
1680	tristate "MTX-1 Hardware Watchdog"
1681	depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1682	help
1683	  Hardware driver for the MTX-1 boards. This is a watchdog timer that
1684	  will reboot the machine after a 100 seconds timer expired.
1685
1686config PNX833X_WDT
1687	tristate "PNX833x Hardware Watchdog"
1688	depends on SOC_PNX8335
1689	depends on BROKEN
1690	help
1691	  Hardware driver for the PNX833x's watchdog. This is a
1692	  watchdog timer that will reboot the machine after a programmable
1693	  timer has expired and no process has written to /dev/watchdog during
1694	  that time.
1695
1696config SIBYTE_WDOG
1697	tristate "Sibyte SoC hardware watchdog"
1698	depends on CPU_SB1 || (MIPS && COMPILE_TEST)
1699	help
1700	  Watchdog driver for the built in watchdog hardware in Sibyte
1701	  SoC processors.  There are apparently two watchdog timers
1702	  on such processors; this driver supports only the first one,
1703	  because currently Linux only supports exporting one watchdog
1704	  to userspace.
1705
1706	  To compile this driver as a loadable module, choose M here.
1707	  The module will be called sb_wdog.
1708
1709config AR7_WDT
1710	tristate "TI AR7 Watchdog Timer"
1711	depends on AR7 || (MIPS && COMPILE_TEST)
1712	help
1713	  Hardware driver for the TI AR7 Watchdog Timer.
1714
1715config TXX9_WDT
1716	tristate "Toshiba TXx9 Watchdog Timer"
1717	depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
1718	select WATCHDOG_CORE
1719	help
1720	  Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1721
1722config OCTEON_WDT
1723	tristate "Cavium OCTEON SOC family Watchdog Timer"
1724	depends on CAVIUM_OCTEON_SOC
1725	default y
1726	select WATCHDOG_CORE
1727	select EXPORT_UASM if OCTEON_WDT = m
1728	help
1729	  Hardware driver for OCTEON's on chip watchdog timer.
1730	  Enables the watchdog for all cores running Linux. It
1731	  installs a NMI handler and pokes the watchdog based on an
1732	  interrupt.  On first expiration of the watchdog, the
1733	  interrupt handler pokes it.  The second expiration causes an
1734	  NMI that prints a message. The third expiration causes a
1735	  global soft reset.
1736
1737	  When userspace has /dev/watchdog open, no poking is done
1738	  from the first interrupt, it is then only poked when the
1739	  device is written.
1740
1741config BCM63XX_WDT
1742	tristate "Broadcom BCM63xx hardware watchdog"
1743	depends on BCM63XX
1744	help
1745	  Watchdog driver for the built in watchdog hardware in Broadcom
1746	  BCM63xx SoC.
1747
1748	  To compile this driver as a loadable module, choose M here.
1749	  The module will be called bcm63xx_wdt.
1750
1751config BCM2835_WDT
1752	tristate "Broadcom BCM2835 hardware watchdog"
1753	depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1754	select WATCHDOG_CORE
1755	help
1756	  Watchdog driver for the built in watchdog hardware in Broadcom
1757	  BCM2835 SoC.
1758
1759	  To compile this driver as a loadable module, choose M here.
1760	  The module will be called bcm2835_wdt.
1761
1762config BCM_KONA_WDT
1763	tristate "BCM Kona Watchdog"
1764	depends on ARCH_BCM_MOBILE || COMPILE_TEST
1765	select WATCHDOG_CORE
1766	help
1767	  Support for the watchdog timer on the following Broadcom BCM281xx
1768	  family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1769	  BCM28155 variants.
1770
1771	  Say 'Y' or 'M' here to enable the driver. The module will be called
1772	  bcm_kona_wdt.
1773
1774config BCM_KONA_WDT_DEBUG
1775	bool "DEBUGFS support for BCM Kona Watchdog"
1776	depends on BCM_KONA_WDT
1777	help
1778	  If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1779	  access to the driver's internal data structures as well as watchdog
1780	  timer hardware registres.
1781
1782	  If in doubt, say 'N'.
1783
1784config BCM7038_WDT
1785	tristate "BCM7038 Watchdog"
1786	select WATCHDOG_CORE
1787	depends on HAS_IOMEM
1788	depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1789	help
1790	 Watchdog driver for the built-in hardware in Broadcom 7038 and
1791	 later SoCs used in set-top boxes.  BCM7038 was made public
1792	 during the 2004 CES, and since then, many Broadcom chips use this
1793	 watchdog block, including some cable modem chips.
1794
1795config IMGPDC_WDT
1796	tristate "Imagination Technologies PDC Watchdog Timer"
1797	depends on HAS_IOMEM
1798	depends on MIPS || COMPILE_TEST
1799	select WATCHDOG_CORE
1800	help
1801	  Driver for Imagination Technologies PowerDown Controller
1802	  Watchdog Timer.
1803
1804	  To compile this driver as a loadable module, choose M here.
1805	  The module will be called imgpdc_wdt.
1806
1807config LANTIQ_WDT
1808	tristate "Lantiq SoC watchdog"
1809	depends on LANTIQ
1810	select WATCHDOG_CORE
1811	help
1812	  Hardware driver for the Lantiq SoC Watchdog Timer.
1813
1814config LOONGSON1_WDT
1815	tristate "Loongson1 SoC hardware watchdog"
1816	depends on MACH_LOONGSON32
1817	select WATCHDOG_CORE
1818	help
1819	  Hardware driver for the Loongson1 SoC Watchdog Timer.
1820
1821config RALINK_WDT
1822	tristate "Ralink SoC watchdog"
1823	select WATCHDOG_CORE
1824	depends on RALINK
1825	help
1826	  Hardware driver for the Ralink SoC Watchdog Timer.
1827
1828config MT7621_WDT
1829	tristate "Mediatek SoC watchdog"
1830	select WATCHDOG_CORE
1831	depends on SOC_MT7620 || SOC_MT7621
1832	help
1833	  Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1834
1835config PIC32_WDT
1836	tristate "Microchip PIC32 hardware watchdog"
1837	select WATCHDOG_CORE
1838	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1839	help
1840	  Watchdog driver for the built in watchdog hardware in a PIC32.
1841
1842	  Configuration bits must be set appropriately for the watchdog to be
1843	  controlled by this driver.
1844
1845	  To compile this driver as a loadable module, choose M here.
1846	  The module will be called pic32-wdt.
1847
1848config PIC32_DMT
1849	tristate "Microchip PIC32 Deadman Timer"
1850	select WATCHDOG_CORE
1851	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1852	help
1853	  Watchdog driver for PIC32 instruction fetch counting timer. This specific
1854	  timer is typically be used in misson critical and safety critical
1855	  applications, where any single failure of the software functionality
1856	  and sequencing must be detected.
1857
1858	  To compile this driver as a loadable module, choose M here.
1859	  The module will be called pic32-dmt.
1860
1861# PARISC Architecture
1862
1863# POWERPC Architecture
1864
1865config GEF_WDT
1866	tristate "GE Watchdog Timer"
1867	depends on GE_FPGA
1868	help
1869	  Watchdog timer found in a number of GE single board computers.
1870
1871config MPC5200_WDT
1872	bool "MPC52xx Watchdog Timer"
1873	depends on PPC_MPC52xx || COMPILE_TEST
1874	help
1875	  Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1876
1877config 8xxx_WDT
1878	tristate "MPC8xxx Platform Watchdog Timer"
1879	depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1880	select WATCHDOG_CORE
1881	help
1882	  This driver is for a SoC level watchdog that exists on some
1883	  Freescale PowerPC processors. So far this driver supports:
1884	  - MPC8xx watchdogs
1885	  - MPC83xx watchdogs
1886	  - MPC86xx watchdogs
1887
1888	  For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1889
1890config MV64X60_WDT
1891	tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1892	depends on MV64X60 || COMPILE_TEST
1893
1894config PIKA_WDT
1895	tristate "PIKA FPGA Watchdog"
1896	depends on WARP || (PPC64 && COMPILE_TEST)
1897	default y
1898	help
1899	  This enables the watchdog in the PIKA FPGA. Currently used on
1900	  the Warp platform.
1901
1902config BOOKE_WDT
1903	tristate "PowerPC Book-E Watchdog Timer"
1904	depends on BOOKE || 4xx
1905	select WATCHDOG_CORE
1906	help
1907	  Watchdog driver for PowerPC Book-E chips, such as the Freescale
1908	  MPC85xx SOCs and the IBM PowerPC 440.
1909
1910	  Please see Documentation/watchdog/watchdog-api.rst for
1911	  more information.
1912
1913config BOOKE_WDT_DEFAULT_TIMEOUT
1914	int "PowerPC Book-E Watchdog Timer Default Timeout"
1915	depends on BOOKE_WDT
1916	default 38 if PPC_FSL_BOOK3E
1917	range 0 63 if PPC_FSL_BOOK3E
1918	default 3 if !PPC_FSL_BOOK3E
1919	range 0 3 if !PPC_FSL_BOOK3E
1920	help
1921	  Select the default watchdog timer period to be used by the PowerPC
1922	  Book-E watchdog driver.  A watchdog "event" occurs when the bit
1923	  position represented by this number transitions from zero to one.
1924
1925	  For Freescale Book-E processors, this is a number between 0 and 63.
1926	  For other Book-E processors, this is a number between 0 and 3.
1927
1928	  The value can be overridden by the wdt_period command-line parameter.
1929
1930config MEN_A21_WDT
1931	tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1932	select WATCHDOG_CORE
1933	depends on GPIOLIB || COMPILE_TEST
1934	help
1935	  Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1936
1937	  The driver can also be built as a module. If so, the module will be
1938	  called mena21_wdt.
1939
1940	  If unsure select N here.
1941
1942# PPC64 Architecture
1943
1944config WATCHDOG_RTAS
1945	tristate "RTAS watchdog"
1946	depends on PPC_RTAS
1947	help
1948	  This driver adds watchdog support for the RTAS watchdog.
1949
1950	  To compile this driver as a module, choose M here. The module
1951	  will be called wdrtas.
1952
1953# S390 Architecture
1954
1955config DIAG288_WATCHDOG
1956	tristate "System z diag288 Watchdog"
1957	depends on S390
1958	select WATCHDOG_CORE
1959	help
1960	  IBM s/390 and zSeries machines running under z/VM 5.1 or later
1961	  provide a virtual watchdog timer to their guest that cause a
1962	  user define Control Program command to be executed after a
1963	  timeout.
1964	  LPAR provides a very similar interface. This driver handles
1965	  both.
1966
1967	  To compile this driver as a module, choose M here. The module
1968	  will be called diag288_wdt.
1969
1970# SUPERH (sh + sh64) Architecture
1971
1972config SH_WDT
1973	tristate "SuperH Watchdog"
1974	depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1975	select WATCHDOG_CORE
1976	help
1977	  This driver adds watchdog support for the integrated watchdog in the
1978	  SuperH processors. If you have one of these processors and wish
1979	  to have watchdog support enabled, say Y, otherwise say N.
1980
1981	  As a side note, saying Y here will automatically boost HZ to 1000
1982	  so that the timer has a chance to clear the overflow counter. On
1983	  slower systems (such as the SH-2 and SH-3) this will likely yield
1984	  some performance issues. As such, the WDT should be avoided here
1985	  unless it is absolutely necessary.
1986
1987	  To compile this driver as a module, choose M here: the
1988	  module will be called shwdt.
1989
1990# SPARC Architecture
1991
1992# SPARC64 Architecture
1993
1994config WATCHDOG_CP1XXX
1995	tristate "CP1XXX Hardware Watchdog support"
1996	depends on SPARC64 && PCI
1997	help
1998	  This is the driver for the hardware watchdog timers present on
1999	  Sun Microsystems CompactPCI models CP1400 and CP1500.
2000
2001	  To compile this driver as a module, choose M here: the
2002	  module will be called cpwatchdog.
2003
2004	  If you do not have a CompactPCI model CP1400 or CP1500, or
2005	  another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
2006	  you should say N to this option.
2007
2008config WATCHDOG_RIO
2009	tristate "RIO Hardware Watchdog support"
2010	depends on SPARC64 && PCI
2011	help
2012	  Say Y here to support the hardware watchdog capability on Sun RIO
2013	  machines.  The watchdog timeout period is normally one minute but
2014	  can be changed with a boot-time parameter.
2015
2016config WATCHDOG_SUN4V
2017	tristate "Sun4v Watchdog support"
2018	select WATCHDOG_CORE
2019	depends on SPARC64
2020	help
2021	  Say Y here to support the hypervisor watchdog capability embedded
2022	  in the SPARC sun4v architecture.
2023
2024	  To compile this driver as a module, choose M here. The module will
2025	  be called sun4v_wdt.
2026
2027# XTENSA Architecture
2028
2029# Xen Architecture
2030
2031config XEN_WDT
2032	tristate "Xen Watchdog support"
2033	depends on XEN
2034	select WATCHDOG_CORE
2035	help
2036	  Say Y here to support the hypervisor watchdog capability provided
2037	  by Xen 4.0 and newer.  The watchdog timeout period is normally one
2038	  minute but can be changed with a boot-time parameter.
2039
2040config UML_WATCHDOG
2041	tristate "UML watchdog"
2042	depends on UML || COMPILE_TEST
2043
2044#
2045# ISA-based Watchdog Cards
2046#
2047
2048comment "ISA-based Watchdog Cards"
2049	depends on ISA
2050
2051config PCWATCHDOG
2052	tristate "Berkshire Products ISA-PC Watchdog"
2053	depends on ISA
2054	help
2055	  This is the driver for the Berkshire Products ISA-PC Watchdog card.
2056	  This card simply watches your kernel to make sure it doesn't freeze,
2057	  and if it does, it reboots your computer after a certain amount of
2058	  time. This driver is like the WDT501 driver but for different
2059	  hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. The PC
2060	  watchdog cards can be ordered from <http://www.berkprod.com/>.
2061
2062	  To compile this driver as a module, choose M here: the
2063	  module will be called pcwd.
2064
2065	  Most people will say N.
2066
2067config MIXCOMWD
2068	tristate "Mixcom Watchdog"
2069	depends on ISA
2070	help
2071	  This is a driver for the Mixcom hardware watchdog cards.  This
2072	  watchdog simply watches your kernel to make sure it doesn't freeze,
2073	  and if it does, it reboots your computer after a certain amount of
2074	  time.
2075
2076	  To compile this driver as a module, choose M here: the
2077	  module will be called mixcomwd.
2078
2079	  Most people will say N.
2080
2081config WDT
2082	tristate "WDT Watchdog timer"
2083	depends on ISA
2084	help
2085	  If you have a WDT500P or WDT501P watchdog board, say Y here,
2086	  otherwise N. It is not possible to probe for this board, which means
2087	  that you have to inform the kernel about the IO port and IRQ that
2088	  is needed (you can do this via the io and irq parameters)
2089
2090	  To compile this driver as a module, choose M here: the
2091	  module will be called wdt.
2092
2093#
2094# PCI-based Watchdog Cards
2095#
2096
2097comment "PCI-based Watchdog Cards"
2098	depends on PCI
2099
2100config PCIPCWATCHDOG
2101	tristate "Berkshire Products PCI-PC Watchdog"
2102	depends on PCI
2103	help
2104	  This is the driver for the Berkshire Products PCI-PC Watchdog card.
2105	  This card simply watches your kernel to make sure it doesn't freeze,
2106	  and if it does, it reboots your computer after a certain amount of
2107	  time. The card can also monitor the internal temperature of the PC.
2108	  More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2109
2110	  To compile this driver as a module, choose M here: the
2111	  module will be called pcwd_pci.
2112
2113	  Most people will say N.
2114
2115config WDTPCI
2116	tristate "PCI-WDT500/501 Watchdog timer"
2117	depends on PCI
2118	help
2119	  If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2120
2121	  If you have a PCI-WDT501 watchdog board then you can enable the
2122	  temperature sensor by setting the type parameter to 501.
2123
2124	  If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2125	  can do this via the tachometer parameter. Only do this if you have a
2126	  fan tachometer actually set up.
2127
2128	  To compile this driver as a module, choose M here: the
2129	  module will be called wdt_pci.
2130
2131#
2132# USB-based Watchdog Cards
2133#
2134
2135comment "USB-based Watchdog Cards"
2136	depends on USB
2137
2138config USBPCWATCHDOG
2139	tristate "Berkshire Products USB-PC Watchdog"
2140	depends on USB
2141	help
2142	  This is the driver for the Berkshire Products USB-PC Watchdog card.
2143	  This card simply watches your kernel to make sure it doesn't freeze,
2144	  and if it does, it reboots your computer after a certain amount of
2145	  time. The card can also monitor the internal temperature of the PC.
2146	  More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2147
2148	  To compile this driver as a module, choose M here: the
2149	  module will be called pcwd_usb.
2150
2151	  Most people will say N.
2152
2153endif # WATCHDOG
2154