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 S3C2410_WATCHDOG
493	tristate "S3C2410 Watchdog"
494	depends on ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || \
495		   COMPILE_TEST
496	select WATCHDOG_CORE
497	select MFD_SYSCON if ARCH_EXYNOS
498	help
499	  Watchdog timer block in the Samsung SoCs. This will reboot
500	  the system when the timer expires with the watchdog enabled.
501
502	  The driver is limited by the speed of the system's PCLK
503	  signal, so with reasonably fast systems (PCLK around 50-66MHz)
504	  then watchdog intervals of over approximately 20seconds are
505	  unavailable.
506
507	  The driver can be built as a module by choosing M, and will
508	  be called s3c2410_wdt
509
510config SA1100_WATCHDOG
511	tristate "SA1100/PXA2xx watchdog"
512	depends on ARCH_SA1100 || ARCH_PXA
513	help
514	  Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
515	  reboot your system when timeout is reached.
516
517	  NOTE: once enabled, this timer cannot be disabled.
518
519	  To compile this driver as a module, choose M here: the
520	  module will be called sa1100_wdt.
521
522config DW_WATCHDOG
523	tristate "Synopsys DesignWare watchdog"
524	depends on HAS_IOMEM
525	select WATCHDOG_CORE
526	help
527	  Say Y here if to include support for the Synopsys DesignWare
528	  watchdog timer found in many chips.
529	  To compile this driver as a module, choose M here: the
530	  module will be called dw_wdt.
531
532config EP93XX_WATCHDOG
533	tristate "EP93xx Watchdog"
534	depends on ARCH_EP93XX || COMPILE_TEST
535	select WATCHDOG_CORE
536	help
537	  Say Y here if to include support for the watchdog timer
538	  embedded in the Cirrus Logic EP93xx family of devices.
539
540	  To compile this driver as a module, choose M here: the
541	  module will be called ep93xx_wdt.
542
543config OMAP_WATCHDOG
544	tristate "OMAP Watchdog"
545	depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
546	select WATCHDOG_CORE
547	help
548	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.  Say 'Y'
549	  here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
550
551config PNX4008_WATCHDOG
552	tristate "LPC32XX Watchdog"
553	depends on ARCH_LPC32XX || COMPILE_TEST
554	select WATCHDOG_CORE
555	help
556	  Say Y here if to include support for the watchdog timer
557	  in the LPC32XX processor.
558	  This driver can be built as a module by choosing M. The module
559	  will be called pnx4008_wdt.
560
561	  Say N if you are unsure.
562
563config IOP_WATCHDOG
564	tristate "IOP Watchdog"
565	depends on ARCH_IOP13XX
566	select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
567	help
568	  Say Y here if to include support for the watchdog timer
569	  in the Intel IOP3XX & IOP13XX I/O Processors.  This driver can
570	  be built as a module by choosing M. The module will
571	  be called iop_wdt.
572
573	  Note: The IOP13XX watchdog does an Internal Bus Reset which will
574	  affect both cores and the peripherals of the IOP.  The ATU-X
575	  and/or ATUe configuration registers will remain intact, but if
576	  operating as an Root Complex and/or Central Resource, the PCI-X
577	  and/or PCIe busses will also be reset.  THIS IS A VERY BIG HAMMER.
578
579config DAVINCI_WATCHDOG
580	tristate "DaVinci watchdog"
581	depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
582	select WATCHDOG_CORE
583	help
584	  Say Y here if to include support for the watchdog timer
585	  in the DaVinci DM644x/DM646x or Keystone processors.
586	  To compile this driver as a module, choose M here: the
587	  module will be called davinci_wdt.
588
589	  NOTE: once enabled, this timer cannot be disabled.
590	  Say N if you are unsure.
591
592config K3_RTI_WATCHDOG
593	tristate "Texas Instruments K3 RTI watchdog"
594	depends on ARCH_K3 || COMPILE_TEST
595	select WATCHDOG_CORE
596	help
597	  Say Y here if you want to include support for the K3 watchdog
598	  timer (RTI module) available in the K3 generation of processors.
599
600config ORION_WATCHDOG
601	tristate "Orion watchdog"
602	depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || (COMPILE_TEST && !ARCH_EBSA110)
603	depends on ARM
604	select WATCHDOG_CORE
605	help
606	  Say Y here if to include support for the watchdog timer
607	  in the Marvell Orion5x and Kirkwood ARM SoCs.
608	  To compile this driver as a module, choose M here: the
609	  module will be called orion_wdt.
610
611config RN5T618_WATCHDOG
612	tristate "Ricoh RN5T618 watchdog"
613	depends on MFD_RN5T618 || COMPILE_TEST
614	select WATCHDOG_CORE
615	help
616	  If you say yes here you get support for watchdog on the Ricoh
617	  RN5T618 PMIC.
618
619	  This driver can also be built as a module.  If so, the module
620	  will be called rn5t618_wdt.
621
622config SUNXI_WATCHDOG
623	tristate "Allwinner SoCs watchdog support"
624	depends on ARCH_SUNXI || COMPILE_TEST
625	select WATCHDOG_CORE
626	help
627	  Say Y here to include support for the watchdog timer
628	  in Allwinner SoCs.
629	  To compile this driver as a module, choose M here: the
630	  module will be called sunxi_wdt.
631
632config COH901327_WATCHDOG
633	bool "ST-Ericsson COH 901 327 watchdog"
634	depends on ARCH_U300 || (ARM && COMPILE_TEST)
635	default y if MACH_U300
636	select WATCHDOG_CORE
637	help
638	  Say Y here to include Watchdog timer support for the
639	  watchdog embedded into the ST-Ericsson U300 series platforms.
640	  This watchdog is used to reset the system and thus cannot be
641	  compiled as a module.
642
643config NPCM7XX_WATCHDOG
644	tristate "Nuvoton NPCM750 watchdog"
645	depends on ARCH_NPCM || COMPILE_TEST
646	default y if ARCH_NPCM7XX
647	select WATCHDOG_CORE
648	help
649	  Say Y here to include Watchdog timer support for the
650	  watchdog embedded into the NPCM7xx.
651	  This watchdog is used to reset the system and thus cannot be
652	  compiled as a module.
653
654config TWL4030_WATCHDOG
655	tristate "TWL4030 Watchdog"
656	depends on TWL4030_CORE
657	select WATCHDOG_CORE
658	help
659	  Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
660	  watchdog timer support for TWL4030 chips.
661
662config STMP3XXX_RTC_WATCHDOG
663	tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
664	depends on RTC_DRV_STMP || COMPILE_TEST
665	select WATCHDOG_CORE
666	help
667	  Say Y here to include support for the watchdog timer inside
668	  the RTC for the STMP37XX/378X or i.MX23/28 SoC.
669	  To compile this driver as a module, choose M here: the
670	  module will be called stmp3xxx_rtc_wdt.
671
672config TS4800_WATCHDOG
673	tristate "TS-4800 Watchdog"
674	depends on HAS_IOMEM && OF
675	depends on SOC_IMX51 || COMPILE_TEST
676	select WATCHDOG_CORE
677	select MFD_SYSCON
678	help
679	  Technologic Systems TS-4800 has watchdog timer implemented in
680	  an external FPGA. Say Y here if you want to support for the
681	  watchdog timer on TS-4800 board.
682
683config TS72XX_WATCHDOG
684	tristate "TS-72XX SBC Watchdog"
685	depends on MACH_TS72XX || COMPILE_TEST
686	select WATCHDOG_CORE
687	help
688	  Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
689	  watchdog timer implemented in a external CPLD chip. Say Y here
690	  if you want to support for the watchdog timer on TS-72XX boards.
691
692	  To compile this driver as a module, choose M here: the
693	  module will be called ts72xx_wdt.
694
695config MAX63XX_WATCHDOG
696	tristate "Max63xx watchdog"
697	depends on HAS_IOMEM
698	select WATCHDOG_CORE
699	help
700	  Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
701
702config MAX77620_WATCHDOG
703	tristate "Maxim Max77620 Watchdog Timer"
704	depends on MFD_MAX77620 || COMPILE_TEST
705	select WATCHDOG_CORE
706	help
707	 This is the driver for the Max77620 watchdog timer.
708	 Say 'Y' here to enable the watchdog timer support for
709	 MAX77620 chips. To compile this driver as a module,
710	 choose M here: the module will be called max77620_wdt.
711
712config IMX2_WDT
713	tristate "IMX2+ Watchdog"
714	depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
715	select REGMAP_MMIO
716	select WATCHDOG_CORE
717	help
718	  This is the driver for the hardware watchdog
719	  on the Freescale IMX2 and later processors.
720	  If you have one of these processors and wish to have
721	  watchdog support enabled, say Y, otherwise say N.
722
723	  To compile this driver as a module, choose M here: the
724	  module will be called imx2_wdt.
725
726config IMX_SC_WDT
727	tristate "IMX SC Watchdog"
728	depends on HAVE_ARM_SMCCC
729	depends on IMX_SCU
730	select WATCHDOG_CORE
731	help
732	  This is the driver for the system controller watchdog
733	  on the NXP i.MX SoCs with system controller inside, the
734	  watchdog driver will call ARM SMC API and trap into
735	  ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
736	  will request system controller to execute the operations.
737	  If you have one of these processors and wish to have
738	  watchdog support enabled, say Y, otherwise say N.
739
740	  To compile this driver as a module, choose M here: the
741	  module will be called imx_sc_wdt.
742
743config IMX7ULP_WDT
744	tristate "IMX7ULP Watchdog"
745	depends on ARCH_MXC || COMPILE_TEST
746	select WATCHDOG_CORE
747	help
748	  This is the driver for the hardware watchdog on the Freescale
749	  IMX7ULP and later processors. If you have one of these
750	  processors and wish to have watchdog support enabled,
751	  say Y, otherwise say N.
752
753	  To compile this driver as a module, choose M here: the
754	  module will be called imx7ulp_wdt.
755
756config UX500_WATCHDOG
757	tristate "ST-Ericsson Ux500 watchdog"
758	depends on MFD_DB8500_PRCMU
759	select WATCHDOG_CORE
760	default y
761	help
762	  Say Y here to include Watchdog timer support for the watchdog
763	  existing in the prcmu of ST-Ericsson Ux500 series platforms.
764
765	  To compile this driver as a module, choose M here: the
766	  module will be called ux500_wdt.
767
768config RETU_WATCHDOG
769	tristate "Retu watchdog"
770	depends on MFD_RETU
771	select WATCHDOG_CORE
772	help
773	  Retu watchdog driver for Nokia Internet Tablets (770, N800,
774	  N810). At least on N800 the watchdog cannot be disabled, so
775	  this driver is essential and you should enable it.
776
777	  To compile this driver as a module, choose M here: the
778	  module will be called retu_wdt.
779
780config MOXART_WDT
781	tristate "MOXART watchdog"
782	depends on ARCH_MOXART || COMPILE_TEST
783	help
784	  Say Y here to include Watchdog timer support for the watchdog
785	  existing on the MOXA ART SoC series platforms.
786
787	  To compile this driver as a module, choose M here: the
788	  module will be called moxart_wdt.
789
790config SIRFSOC_WATCHDOG
791	tristate "SiRFSOC watchdog"
792	depends on ARCH_SIRF || COMPILE_TEST
793	select WATCHDOG_CORE
794	default y
795	help
796	  Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
797	  the watchdog triggers the system will be reset.
798
799config ST_LPC_WATCHDOG
800	tristate "STMicroelectronics LPC Watchdog"
801	depends on ARCH_STI || COMPILE_TEST
802	depends on OF
803	select WATCHDOG_CORE
804	help
805	  Say Y here to include STMicroelectronics Low Power Controller
806	  (LPC) based Watchdog timer support.
807
808	  To compile this driver as a module, choose M here: the
809	  module will be called st_lpc_wdt.
810
811config TEGRA_WATCHDOG
812	tristate "Tegra watchdog"
813	depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
814	select WATCHDOG_CORE
815	help
816	  Say Y here to include support for the watchdog timer
817	  embedded in NVIDIA Tegra SoCs.
818
819	  To compile this driver as a module, choose M here: the
820	  module will be called tegra_wdt.
821
822config QCOM_WDT
823	tristate "QCOM watchdog"
824	depends on HAS_IOMEM
825	depends on ARCH_QCOM || COMPILE_TEST
826	select WATCHDOG_CORE
827	help
828	  Say Y here to include Watchdog timer support for the watchdog found
829	  on QCOM chipsets.  Currently supported targets are the MSM8960,
830	  APQ8064, and IPQ8064.
831
832	  To compile this driver as a module, choose M here: the
833	  module will be called qcom_wdt.
834
835config MESON_GXBB_WATCHDOG
836	tristate "Amlogic Meson GXBB SoCs watchdog support"
837	depends on ARCH_MESON || COMPILE_TEST
838	select WATCHDOG_CORE
839	help
840	  Say Y here to include support for the watchdog timer
841	  in Amlogic Meson GXBB SoCs.
842	  To compile this driver as a module, choose M here: the
843	  module will be called meson_gxbb_wdt.
844
845config MESON_WATCHDOG
846	tristate "Amlogic Meson SoCs watchdog support"
847	depends on ARCH_MESON || COMPILE_TEST
848	select WATCHDOG_CORE
849	help
850	  Say Y here to include support for the watchdog timer
851	  in Amlogic Meson SoCs.
852	  To compile this driver as a module, choose M here: the
853	  module will be called meson_wdt.
854
855config MEDIATEK_WATCHDOG
856	tristate "Mediatek SoCs watchdog support"
857	depends on ARCH_MEDIATEK || COMPILE_TEST
858	select WATCHDOG_CORE
859	select RESET_CONTROLLER
860	help
861	  Say Y here to include support for the watchdog timer
862	  in Mediatek SoCs.
863	  To compile this driver as a module, choose M here: the
864	  module will be called mtk_wdt.
865
866config DIGICOLOR_WATCHDOG
867	tristate "Conexant Digicolor SoCs watchdog support"
868	depends on ARCH_DIGICOLOR || COMPILE_TEST
869	select WATCHDOG_CORE
870	help
871	  Say Y here to include support for the watchdog timer
872	  in Conexant Digicolor SoCs.
873	  To compile this driver as a module, choose M here: the
874	  module will be called digicolor_wdt.
875
876config ARM_SMC_WATCHDOG
877	tristate "ARM Secure Monitor Call based watchdog support"
878	depends on ARM || ARM64
879	depends on OF
880	depends on HAVE_ARM_SMCCC
881	select WATCHDOG_CORE
882	help
883	  Say Y here to include support for a watchdog timer
884	  implemented by the EL3 Secure Monitor on ARM platforms.
885	  Requires firmware support.
886	  To compile this driver as a module, choose M here: the
887	  module will be called arm_smc_wdt.
888
889config LPC18XX_WATCHDOG
890	tristate "LPC18xx/43xx Watchdog"
891	depends on ARCH_LPC18XX || COMPILE_TEST
892	depends on HAS_IOMEM
893	select WATCHDOG_CORE
894	help
895	  Say Y here if to include support for the watchdog timer
896	  in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
897	  processors.
898	  To compile this driver as a module, choose M here: the
899	  module will be called lpc18xx_wdt.
900
901config ATLAS7_WATCHDOG
902	tristate "CSRatlas7 watchdog"
903	depends on ARCH_ATLAS7 || COMPILE_TEST
904	help
905	  Say Y here to include Watchdog timer support for the watchdog
906	  existing on the CSRatlas7 series platforms.
907
908	  To compile this driver as a module, choose M here: the
909	  module will be called atlas7_wdt.
910
911config RENESAS_WDT
912	tristate "Renesas WDT Watchdog"
913	depends on ARCH_RENESAS || COMPILE_TEST
914	select WATCHDOG_CORE
915	help
916	  This driver adds watchdog support for the integrated watchdogs in the
917	  Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
918
919config RENESAS_RZAWDT
920	tristate "Renesas RZ/A WDT Watchdog"
921	depends on ARCH_RENESAS || COMPILE_TEST
922	select WATCHDOG_CORE
923	help
924	  This driver adds watchdog support for the integrated watchdogs in the
925	  Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
926
927config ASPEED_WATCHDOG
928	tristate "Aspeed BMC watchdog support"
929	depends on ARCH_ASPEED || COMPILE_TEST
930	select WATCHDOG_CORE
931	help
932	  Say Y here to include support for the watchdog timer
933	  in Aspeed BMC SoCs.
934
935	  This driver is required to reboot the SoC.
936
937	  To compile this driver as a module, choose M here: the
938	  module will be called aspeed_wdt.
939
940config ZX2967_WATCHDOG
941	tristate "ZTE zx2967 SoCs watchdog support"
942	depends on ARCH_ZX
943	select WATCHDOG_CORE
944	help
945	  Say Y here to include support for the watchdog timer
946	  in ZTE zx2967 SoCs.
947	  To compile this driver as a module, choose M here: the
948	  module will be called zx2967_wdt.
949
950config STM32_WATCHDOG
951	tristate "STM32 Independent WatchDoG (IWDG) support"
952	depends on ARCH_STM32
953	select WATCHDOG_CORE
954	default y
955	help
956	  Say Y here to include support for the watchdog timer
957	  in stm32 SoCs.
958
959	  To compile this driver as a module, choose M here: the
960	  module will be called stm32_iwdg.
961
962config STPMIC1_WATCHDOG
963	tristate "STPMIC1 PMIC watchdog support"
964	depends on MFD_STPMIC1
965	select WATCHDOG_CORE
966	help
967	  Say Y here to include watchdog support embedded into STPMIC1 PMIC.
968	  If the watchdog timer expires, stpmic1 will shut down all its power
969	  supplies.
970
971	  To compile this driver as a module, choose M here: the
972	  module will be called spmic1_wdt.
973
974config UNIPHIER_WATCHDOG
975	tristate "UniPhier watchdog support"
976	depends on ARCH_UNIPHIER || COMPILE_TEST
977	depends on OF && MFD_SYSCON
978	select WATCHDOG_CORE
979	help
980	  Say Y here to include support watchdog timer embedded
981	  into the UniPhier system.
982
983	  To compile this driver as a module, choose M here: the
984	  module will be called uniphier_wdt.
985
986config RTD119X_WATCHDOG
987	bool "Realtek RTD119x/RTD129x watchdog support"
988	depends on ARCH_REALTEK || COMPILE_TEST
989	depends on OF
990	select WATCHDOG_CORE
991	default ARCH_REALTEK
992	help
993	  Say Y here to include support for the watchdog timer in
994	  Realtek RTD1295 SoCs.
995
996config SPRD_WATCHDOG
997	tristate "Spreadtrum watchdog support"
998	depends on ARCH_SPRD || COMPILE_TEST
999	select WATCHDOG_CORE
1000	help
1001	  Say Y here to include watchdog timer supported
1002	  by Spreadtrum system.
1003
1004config PM8916_WATCHDOG
1005	tristate "QCOM PM8916 pmic watchdog"
1006	depends on OF && MFD_SPMI_PMIC
1007	select WATCHDOG_CORE
1008	help
1009	  Say Y here to include support watchdog timer embedded into the
1010	  pm8916 module.
1011
1012config VISCONTI_WATCHDOG
1013	tristate "Toshiba Visconti series watchdog support"
1014	depends on ARCH_VISCONTI || COMPILE_TEST
1015	select WATCHDOG_CORE
1016	help
1017	  Say Y here to include support for the watchdog timer in Toshiba
1018	  Visconti SoCs.
1019
1020# X86 (i386 + ia64 + x86_64) Architecture
1021
1022config ACQUIRE_WDT
1023	tristate "Acquire SBC Watchdog Timer"
1024	depends on X86
1025	help
1026	  This is the driver for the hardware watchdog on Single Board
1027	  Computers produced by Acquire Inc (and others). This watchdog
1028	  simply watches your kernel to make sure it doesn't freeze, and if
1029	  it does, it reboots your computer after a certain amount of time.
1030
1031	  To compile this driver as a module, choose M here: the
1032	  module will be called acquirewdt.
1033
1034	  Most people will say N.
1035
1036config ADVANTECH_WDT
1037	tristate "Advantech SBC Watchdog Timer"
1038	depends on X86
1039	help
1040	  If you are configuring a Linux kernel for the Advantech single-board
1041	  computer, say `Y' here to support its built-in watchdog timer
1042	  feature. More information can be found at
1043	  <https://www.advantech.com.tw/products/>
1044
1045config ALIM1535_WDT
1046	tristate "ALi M1535 PMU Watchdog Timer"
1047	depends on X86 && PCI
1048	help
1049	  This is the driver for the hardware watchdog on the ALi M1535 PMU.
1050
1051	  To compile this driver as a module, choose M here: the
1052	  module will be called alim1535_wdt.
1053
1054	  Most people will say N.
1055
1056config ALIM7101_WDT
1057	tristate "ALi M7101 PMU Computer Watchdog"
1058	depends on PCI
1059	help
1060	  This is the driver for the hardware watchdog on the ALi M7101 PMU
1061	  as used in the x86 Cobalt servers and also found in some
1062	  SPARC Netra servers too.
1063
1064	  To compile this driver as a module, choose M here: the
1065	  module will be called alim7101_wdt.
1066
1067	  Most people will say N.
1068
1069config EBC_C384_WDT
1070	tristate "WinSystems EBC-C384 Watchdog Timer"
1071	depends on X86
1072	select ISA_BUS_API
1073	select WATCHDOG_CORE
1074	help
1075	  Enables watchdog timer support for the watchdog timer on the
1076	  WinSystems EBC-C384 motherboard. The timeout may be configured via
1077	  the timeout module parameter.
1078
1079config F71808E_WDT
1080	tristate "Fintek F718xx, F818xx Super I/O Watchdog"
1081	depends on X86
1082	help
1083	  This is the driver for the hardware watchdog on the Fintek F71808E,
1084	  F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and
1085	  F81866 Super I/O controllers.
1086
1087	  You can compile this driver directly into the kernel, or use
1088	  it as a module.  The module will be called f71808e_wdt.
1089
1090config SP5100_TCO
1091	tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
1092	depends on X86 && PCI
1093	select WATCHDOG_CORE
1094	help
1095	  Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
1096	  (Total Cost of Ownership) timer is a watchdog timer that will reboot
1097	  the machine after its expiration. The expiration time can be
1098	  configured with the "heartbeat" parameter.
1099
1100	  To compile this driver as a module, choose M here: the
1101	  module will be called sp5100_tco.
1102
1103config GEODE_WDT
1104	tristate "AMD Geode CS5535/CS5536 Watchdog"
1105	depends on CS5535_MFGPT
1106	help
1107	  This driver enables a watchdog capability built into the
1108	  CS5535/CS5536 companion chips for the AMD Geode GX and LX
1109	  processors.  This watchdog watches your kernel to make sure
1110	  it doesn't freeze, and if it does, it reboots your computer after
1111	  a certain 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 geodewdt.
1115
1116config SC520_WDT
1117	tristate "AMD Elan SC520 processor Watchdog"
1118	depends on MELAN || COMPILE_TEST
1119	help
1120	  This is the driver for the hardware watchdog built in to the
1121	  AMD "Elan" SC520 microcomputer commonly used in embedded systems.
1122	  This watchdog simply watches your kernel to make sure it doesn't
1123	  freeze, and if it does, it reboots your computer after a certain
1124	  amount of time.
1125
1126	  You can compile this driver directly into the kernel, or use
1127	  it as a module.  The module will be called sc520_wdt.
1128
1129config SBC_FITPC2_WATCHDOG
1130	tristate "Compulab SBC-FITPC2 watchdog"
1131	depends on X86
1132	help
1133	  This is the driver for the built-in watchdog timer on the fit-PC2,
1134	  fit-PC2i, CM-iAM single-board computers made by Compulab.
1135
1136	  It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
1137	  When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
1138
1139	  Entering BIOS setup temporary disables watchdog operation regardless to current state,
1140	  so system will not be restarted while user in BIOS setup.
1141
1142	  Once watchdog was enabled the system will be restarted every
1143	  "Watchdog Timer Value" period, so to prevent it user can restart or
1144	  disable the watchdog.
1145
1146	  To compile this driver as a module, choose M here: the
1147	  module will be called sbc_fitpc2_wdt.
1148
1149	  Most people will say N.
1150
1151config EUROTECH_WDT
1152	tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1153	depends on X86
1154	help
1155	  Enable support for the watchdog timer on the Eurotech CPU-1220 and
1156	  CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
1157	  information are at <http://www.eurotech.it/>.
1158
1159config IB700_WDT
1160	tristate "IB700 SBC Watchdog Timer"
1161	depends on X86
1162	help
1163	  This is the driver for the hardware watchdog on the IB700 Single
1164	  Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
1165	  simply watches your kernel to make sure it doesn't freeze, and if
1166	  it does, it reboots your computer after a certain amount of time.
1167
1168	  This driver is like the WDT501 driver but for slightly different hardware.
1169
1170	  To compile this driver as a module, choose M here: the
1171	  module will be called ib700wdt.
1172
1173	  Most people will say N.
1174
1175config IBMASR
1176	tristate "IBM Automatic Server Restart"
1177	depends on X86
1178	help
1179	  This is the driver for the IBM Automatic Server Restart watchdog
1180	  timer built-in into some eServer xSeries machines.
1181
1182	  To compile this driver as a module, choose M here: the
1183	  module will be called ibmasr.
1184
1185config WAFER_WDT
1186	tristate "ICP Single Board Computer Watchdog Timer"
1187	depends on X86
1188	help
1189	  This is a driver for the hardware watchdog on the ICP Single
1190	  Board Computer. This driver is working on (at least) the following
1191	  IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1192
1193	  To compile this driver as a module, choose M here: the
1194	  module will be called wafer5823wdt.
1195
1196config I6300ESB_WDT
1197	tristate "Intel 6300ESB Timer/Watchdog"
1198	depends on PCI
1199	select WATCHDOG_CORE
1200	help
1201	  Hardware driver for the watchdog timer built into the Intel
1202	  6300ESB controller hub.
1203
1204	  To compile this driver as a module, choose M here: the
1205	  module will be called i6300esb.
1206
1207config IE6XX_WDT
1208	tristate "Intel Atom E6xx Watchdog"
1209	depends on X86 && PCI
1210	select WATCHDOG_CORE
1211	select MFD_CORE
1212	select LPC_SCH
1213	help
1214	  Hardware driver for the watchdog timer built into the Intel
1215	  Atom E6XX (TunnelCreek) processor.
1216
1217	  To compile this driver as a module, choose M here: the
1218	  module will be called ie6xx_wdt.
1219
1220config INTEL_SCU_WATCHDOG
1221	bool "Intel SCU Watchdog for Mobile Platforms"
1222	depends on X86_INTEL_MID
1223	help
1224	  Hardware driver for the watchdog time built into the Intel SCU
1225	  for Intel Mobile Platforms.
1226
1227	  To compile this driver as a module, choose M here.
1228
1229config INTEL_MID_WATCHDOG
1230	tristate "Intel MID Watchdog Timer"
1231	depends on X86_INTEL_MID
1232	select WATCHDOG_CORE
1233	help
1234	  Watchdog timer driver built into the Intel SCU for Intel MID
1235	  Platforms.
1236
1237	  This driver currently supports only the watchdog evolution
1238	  implementation in SCU, available for Merrifield generation.
1239
1240	  To compile this driver as a module, choose M here.
1241
1242config ITCO_WDT
1243	tristate "Intel TCO Timer/Watchdog"
1244	depends on (X86 || IA64) && PCI
1245	select WATCHDOG_CORE
1246	depends on I2C || I2C=n
1247	depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT
1248	select LPC_ICH if !EXPERT
1249	select I2C_I801 if !EXPERT && I2C
1250	help
1251	  Hardware driver for the intel TCO timer based watchdog devices.
1252	  These drivers are included in the Intel 82801 I/O Controller
1253	  Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1254	  controller hub.
1255
1256	  The TCO (Total Cost of Ownership) timer is a watchdog timer
1257	  that will reboot the machine after its second expiration. The
1258	  expiration time can be configured with the "heartbeat" parameter.
1259
1260	  On some motherboards the driver may fail to reset the chipset's
1261	  NO_REBOOT flag which prevents the watchdog from rebooting the
1262	  machine. If this is the case you will get a kernel message like
1263	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1264
1265	  To compile this driver as a module, choose M here: the
1266	  module will be called iTCO_wdt.
1267
1268config ITCO_VENDOR_SUPPORT
1269	bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1270	depends on ITCO_WDT
1271	help
1272	  Add vendor specific support to the intel TCO timer based watchdog
1273	  devices. At this moment we only have additional support for some
1274	  SuperMicro Inc. motherboards.
1275
1276config IT8712F_WDT
1277	tristate "IT8712F (Smart Guardian) Watchdog Timer"
1278	depends on X86
1279	help
1280	  This is the driver for the built-in watchdog timer on the IT8712F
1281	  Super I/0 chipset used on many motherboards.
1282
1283	  If the driver does not work, then make sure that the game port in
1284	  the BIOS is enabled.
1285
1286	  To compile this driver as a module, choose M here: the
1287	  module will be called it8712f_wdt.
1288
1289config IT87_WDT
1290	tristate "IT87 Watchdog Timer"
1291	depends on X86
1292	select WATCHDOG_CORE
1293	help
1294	  This is the driver for the hardware watchdog on the ITE IT8607,
1295	  IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1296	  IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1297	  IT8783 Super I/O chips.
1298
1299	  This watchdog simply watches your kernel to make sure it doesn't
1300	  freeze, and if it does, it reboots your computer after a certain
1301	  amount of time.
1302
1303	  To compile this driver as a module, choose M here: the module will
1304	  be called it87_wdt.
1305
1306config HP_WATCHDOG
1307	tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1308	select WATCHDOG_CORE
1309	depends on X86 && PCI
1310	help
1311	  A software monitoring watchdog and NMI handling driver. This driver
1312	  will detect lockups and provide a stack trace. This is a driver that
1313	  will only load on an HP ProLiant system with a minimum of iLO2 support.
1314	  To compile this driver as a module, choose M here: the module will be
1315	  called hpwdt.
1316
1317config HPWDT_NMI_DECODING
1318	bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1319	depends on HP_WATCHDOG
1320	default y
1321	help
1322	  Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1323	  "Generate NMI to System" virtual button.  When an NMI is claimed
1324	  by the driver, panic is called.
1325
1326config KEMPLD_WDT
1327	tristate "Kontron COM Watchdog Timer"
1328	depends on MFD_KEMPLD
1329	select WATCHDOG_CORE
1330	help
1331	  Support for the PLD watchdog on some Kontron ETX and COMexpress
1332	  (ETXexpress) modules
1333
1334	  This driver can also be built as a module. If so, the module will be
1335	  called kempld_wdt.
1336
1337config SC1200_WDT
1338	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1339	depends on X86
1340	help
1341	  This is a driver for National Semiconductor PC87307/PC97307 hardware
1342	  watchdog cards as found on the SC1200. This watchdog is mainly used
1343	  for power management purposes and can be used to power down the device
1344	  during inactivity periods (includes interrupt activity monitoring).
1345
1346	  To compile this driver as a module, choose M here: the
1347	  module will be called sc1200wdt.
1348
1349	  Most people will say N.
1350
1351config SCx200_WDT
1352	tristate "National Semiconductor SCx200 Watchdog"
1353	depends on SCx200 && PCI
1354	help
1355	  Enable the built-in watchdog timer support on the National
1356	  Semiconductor SCx200 processors.
1357
1358	  If compiled as a module, it will be called scx200_wdt.
1359
1360config PC87413_WDT
1361	tristate "NS PC87413 watchdog"
1362	depends on X86
1363	help
1364	  This is the driver for the hardware watchdog on the PC87413 chipset
1365	  This watchdog simply watches your kernel to make sure it doesn't
1366	  freeze, and if it does, it reboots your computer after a certain
1367	  amount of time.
1368
1369	  To compile this driver as a module, choose M here: the
1370	  module will be called pc87413_wdt.
1371
1372	  Most people will say N.
1373
1374config NV_TCO
1375	tristate "nVidia TCO Timer/Watchdog"
1376	depends on X86 && PCI
1377	help
1378	  Hardware driver for the TCO timer built into the nVidia Hub family
1379	  (such as the MCP51).  The TCO (Total Cost of Ownership) timer is a
1380	  watchdog timer that will reboot the machine after its second
1381	  expiration. The expiration time can be configured with the
1382	  "heartbeat" parameter.
1383
1384	  On some motherboards the driver may fail to reset the chipset's
1385	  NO_REBOOT flag which prevents the watchdog from rebooting the
1386	  machine. If this is the case you will get a kernel message like
1387	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1388
1389	  To compile this driver as a module, choose M here: the
1390	  module will be called nv_tco.
1391
1392config RDC321X_WDT
1393	tristate "RDC R-321x SoC watchdog"
1394	depends on X86_RDC321X || COMPILE_TEST
1395	depends on PCI
1396	help
1397	  This is the driver for the built in hardware watchdog
1398	  in the RDC R-321x SoC.
1399
1400	  To compile this driver as a module, choose M here: the
1401	  module will be called rdc321x_wdt.
1402
1403config 60XX_WDT
1404	tristate "SBC-60XX Watchdog Timer"
1405	depends on X86
1406	help
1407	  This driver can be used with the watchdog timer found on some
1408	  single board computers, namely the 6010 PII based computer.
1409	  It may well work with other cards.  It reads port 0x443 to enable
1410	  and re-set the watchdog timer, and reads port 0x45 to disable
1411	  the watchdog.  If you have a card that behave in similar ways,
1412	  you can probably make this driver work with your card as well.
1413
1414	  You can compile this driver directly into the kernel, or use
1415	  it as a module.  The module will be called sbc60xxwdt.
1416
1417config SBC8360_WDT
1418	tristate "SBC8360 Watchdog Timer"
1419	depends on X86_32
1420	help
1421
1422	  This is the driver for the hardware watchdog on the SBC8360 Single
1423	  Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1424
1425	  To compile this driver as a module, choose M here: the
1426	  module will be called sbc8360.
1427
1428	  Most people will say N.
1429
1430config SBC7240_WDT
1431	tristate "SBC Nano 7240 Watchdog Timer"
1432	depends on X86_32 && !UML
1433	help
1434	  This is the driver for the hardware watchdog found on the IEI
1435	  single board computers EPIC Nano 7240 (and likely others). This
1436	  watchdog simply watches your kernel to make sure it doesn't freeze,
1437	  and if it does, it reboots your computer after a certain amount of
1438	  time.
1439
1440	  To compile this driver as a module, choose M here: the
1441	  module will be called sbc7240_wdt.
1442
1443config CPU5_WDT
1444	tristate "SMA CPU5 Watchdog"
1445	depends on X86
1446	help
1447	  TBD.
1448	  To compile this driver as a module, choose M here: the
1449	  module will be called cpu5wdt.
1450
1451config SMSC_SCH311X_WDT
1452	tristate "SMSC SCH311X Watchdog Timer"
1453	depends on X86
1454	help
1455	  This is the driver for the hardware watchdog timer on the
1456	  SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1457	  (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1458	  serial ports).
1459
1460	  To compile this driver as a module, choose M here: the
1461	  module will be called sch311x_wdt.
1462
1463config SMSC37B787_WDT
1464	tristate "Winbond SMsC37B787 Watchdog Timer"
1465	depends on X86
1466	help
1467	  This is the driver for the hardware watchdog component on the
1468	  Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1469	  from Vision Systems and maybe others.
1470
1471	  This watchdog simply watches your kernel to make sure it doesn't
1472	  freeze, and if it does, it reboots your computer after a certain
1473	  amount of time.
1474
1475	  Usually a userspace daemon will notify the kernel WDT driver that
1476	  userspace is still alive, at regular intervals.
1477
1478	  To compile this driver as a module, choose M here: the
1479	  module will be called smsc37b787_wdt.
1480
1481	  Most people will say N.
1482
1483config TQMX86_WDT
1484	tristate "TQ-Systems TQMX86 Watchdog Timer"
1485	depends on X86
1486	select WATCHDOG_CORE
1487	help
1488	This is the driver for the hardware watchdog timer in the TQMX86 IO
1489	controller found on some of their ComExpress Modules.
1490
1491	To compile this driver as a module, choose M here; the module
1492	will be called tqmx86_wdt.
1493
1494	Most people will say N.
1495
1496config VIA_WDT
1497	tristate "VIA Watchdog Timer"
1498	depends on X86 && PCI
1499	select WATCHDOG_CORE
1500	help
1501	This is the driver for the hardware watchdog timer on VIA
1502	southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1503
1504	To compile this driver as a module, choose M here; the module
1505	will be called via_wdt.
1506
1507	Most people will say N.
1508
1509config W83627HF_WDT
1510	tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1511	depends on X86
1512	select WATCHDOG_CORE
1513	help
1514	  This is the driver for the hardware watchdog on the following
1515	  Super I/O chips.
1516		W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1517		W83637HF
1518		W83667HG/HG-B
1519		W83687THF
1520		W83697HF
1521		W83697UG
1522		NCT6775
1523		NCT6776
1524		NCT6779
1525		NCT6791
1526		NCT6792
1527		NCT6102D/04D/06D
1528		NCT6116D
1529
1530	  This watchdog simply watches your kernel to make sure it doesn't
1531	  freeze, and if it does, it reboots your computer after a certain
1532	  amount of time.
1533
1534	  To compile this driver as a module, choose M here: the
1535	  module will be called w83627hf_wdt.
1536
1537	  Most people will say N.
1538
1539config W83877F_WDT
1540	tristate "W83877F (EMACS) Watchdog Timer"
1541	depends on X86
1542	help
1543	  This is the driver for the hardware watchdog on the W83877F chipset
1544	  as used in EMACS PC-104 motherboards (and likely others).  This
1545	  watchdog simply watches your kernel to make sure it doesn't freeze,
1546	  and if it does, it reboots your computer after a certain amount of
1547	  time.
1548
1549	  To compile this driver as a module, choose M here: the
1550	  module will be called w83877f_wdt.
1551
1552	  Most people will say N.
1553
1554config W83977F_WDT
1555	tristate "W83977F (PCM-5335) Watchdog Timer"
1556	depends on X86
1557	help
1558	  This is the driver for the hardware watchdog on the W83977F I/O chip
1559	  as used in AAEON's PCM-5335 SBC (and likely others).  This
1560	  watchdog simply watches your kernel to make sure it doesn't freeze,
1561	  and if it does, it reboots your computer after a certain amount of
1562	  time.
1563
1564	  To compile this driver as a module, choose M here: the
1565	  module will be called w83977f_wdt.
1566
1567config MACHZ_WDT
1568	tristate "ZF MachZ Watchdog"
1569	depends on X86
1570	help
1571	  If you are using a ZF Micro MachZ processor, say Y here, otherwise
1572	  N.  This is the driver for the watchdog timer built-in on that
1573	  processor using ZF-Logic interface.  This watchdog simply watches
1574	  your kernel to make sure it doesn't freeze, and if it does, it
1575	  reboots your computer after a certain amount of time.
1576
1577	  To compile this driver as a module, choose M here: the
1578	  module will be called machzwd.
1579
1580config SBC_EPX_C3_WATCHDOG
1581	tristate "Winsystems SBC EPX-C3 watchdog"
1582	depends on X86
1583	help
1584	  This is the driver for the built-in watchdog timer on the EPX-C3
1585	  Single-board computer made by Winsystems, Inc.
1586
1587	  *Note*: This hardware watchdog is not probeable and thus there
1588	  is no way to know if writing to its IO address will corrupt
1589	  your system or have any real effect.  The only way to be sure
1590	  that this driver does what you want is to make sure you
1591	  are running it on an EPX-C3 from Winsystems with the watchdog
1592	  timer at IO address 0x1ee and 0x1ef.  It will write to both those
1593	  IO ports.  Basically, the assumption is made that if you compile
1594	  this driver into your kernel and/or load it as a module, that you
1595	  know what you are doing and that you are in fact running on an
1596	  EPX-C3 board!
1597
1598	  To compile this driver as a module, choose M here: the
1599	  module will be called sbc_epx_c3.
1600
1601config INTEL_MEI_WDT
1602	tristate "Intel MEI iAMT Watchdog"
1603	depends on INTEL_MEI && X86
1604	select WATCHDOG_CORE
1605	help
1606	  A device driver for the Intel MEI iAMT watchdog.
1607
1608	  The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1609	  Whenever the OS hangs or crashes, iAMT will send an event
1610	  to any subscriber to this event. The watchdog doesn't reset the
1611	  the platform.
1612
1613	  To compile this driver as a module, choose M here:
1614	  the module will be called mei_wdt.
1615
1616config NI903X_WDT
1617	tristate "NI 903x/913x Watchdog"
1618	depends on X86 && ACPI
1619	select WATCHDOG_CORE
1620	help
1621	  This is the driver for the watchdog timer on the National Instruments
1622	  903x/913x real-time controllers.
1623
1624	  To compile this driver as a module, choose M here: the module will be
1625	  called ni903x_wdt.
1626
1627config NIC7018_WDT
1628	tristate "NIC7018 Watchdog"
1629	depends on X86 && ACPI
1630	select WATCHDOG_CORE
1631	help
1632	  Support for National Instruments NIC7018 Watchdog.
1633
1634	  To compile this driver as a module, choose M here: the module will be
1635	  called nic7018_wdt.
1636
1637# M68K Architecture
1638
1639config M54xx_WATCHDOG
1640	tristate "MCF54xx watchdog support"
1641	depends on M548x
1642	help
1643	  To compile this driver as a module, choose M here: the
1644	  module will be called m54xx_wdt.
1645
1646# MicroBlaze Architecture
1647
1648# MIPS Architecture
1649
1650config ATH79_WDT
1651	tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1652	depends on ATH79 || (ARM && COMPILE_TEST)
1653	help
1654	  Hardware driver for the built-in watchdog timer on the Atheros
1655	  AR71XX/AR724X/AR913X SoCs.
1656
1657config BCM47XX_WDT
1658	tristate "Broadcom BCM47xx Watchdog Timer"
1659	depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1660	select WATCHDOG_CORE
1661	help
1662	  Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1663
1664config RC32434_WDT
1665	tristate "IDT RC32434 SoC Watchdog Timer"
1666	depends on MIKROTIK_RB532
1667	help
1668	  Hardware driver for the IDT RC32434 SoC built-in
1669	  watchdog timer.
1670
1671	  To compile this driver as a module, choose M here: the
1672	  module will be called rc32434_wdt.
1673
1674config INDYDOG
1675	tristate "Indy/I2 Hardware Watchdog"
1676	depends on SGI_HAS_INDYDOG
1677	help
1678	  Hardware driver for the Indy's/I2's watchdog. This is a
1679	  watchdog timer that will reboot the machine after a 60 second
1680	  timer expired and no process has written to /dev/watchdog during
1681	  that time.
1682
1683config JZ4740_WDT
1684	tristate "Ingenic jz4740 SoC hardware watchdog"
1685	depends on MIPS
1686	depends on COMMON_CLK
1687	select WATCHDOG_CORE
1688	select MFD_SYSCON
1689	help
1690	  Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1691
1692config WDT_MTX1
1693	tristate "MTX-1 Hardware Watchdog"
1694	depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1695	help
1696	  Hardware driver for the MTX-1 boards. This is a watchdog timer that
1697	  will reboot the machine after a 100 seconds timer expired.
1698
1699config PNX833X_WDT
1700	tristate "PNX833x Hardware Watchdog"
1701	depends on SOC_PNX8335
1702	depends on BROKEN
1703	help
1704	  Hardware driver for the PNX833x's watchdog. This is a
1705	  watchdog timer that will reboot the machine after a programmable
1706	  timer has expired and no process has written to /dev/watchdog during
1707	  that time.
1708
1709config SIBYTE_WDOG
1710	tristate "Sibyte SoC hardware watchdog"
1711	depends on CPU_SB1 || (MIPS && COMPILE_TEST)
1712	help
1713	  Watchdog driver for the built in watchdog hardware in Sibyte
1714	  SoC processors.  There are apparently two watchdog timers
1715	  on such processors; this driver supports only the first one,
1716	  because currently Linux only supports exporting one watchdog
1717	  to userspace.
1718
1719	  To compile this driver as a loadable module, choose M here.
1720	  The module will be called sb_wdog.
1721
1722config AR7_WDT
1723	tristate "TI AR7 Watchdog Timer"
1724	depends on AR7 || (MIPS && COMPILE_TEST)
1725	help
1726	  Hardware driver for the TI AR7 Watchdog Timer.
1727
1728config TXX9_WDT
1729	tristate "Toshiba TXx9 Watchdog Timer"
1730	depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
1731	select WATCHDOG_CORE
1732	help
1733	  Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1734
1735config OCTEON_WDT
1736	tristate "Cavium OCTEON SOC family Watchdog Timer"
1737	depends on CAVIUM_OCTEON_SOC
1738	default y
1739	select WATCHDOG_CORE
1740	select EXPORT_UASM if OCTEON_WDT = m
1741	help
1742	  Hardware driver for OCTEON's on chip watchdog timer.
1743	  Enables the watchdog for all cores running Linux. It
1744	  installs a NMI handler and pokes the watchdog based on an
1745	  interrupt.  On first expiration of the watchdog, the
1746	  interrupt handler pokes it.  The second expiration causes an
1747	  NMI that prints a message. The third expiration causes a
1748	  global soft reset.
1749
1750	  When userspace has /dev/watchdog open, no poking is done
1751	  from the first interrupt, it is then only poked when the
1752	  device is written.
1753
1754config BCM63XX_WDT
1755	tristate "Broadcom BCM63xx hardware watchdog"
1756	depends on BCM63XX
1757	help
1758	  Watchdog driver for the built in watchdog hardware in Broadcom
1759	  BCM63xx SoC.
1760
1761	  To compile this driver as a loadable module, choose M here.
1762	  The module will be called bcm63xx_wdt.
1763
1764config BCM2835_WDT
1765	tristate "Broadcom BCM2835 hardware watchdog"
1766	depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1767	select WATCHDOG_CORE
1768	help
1769	  Watchdog driver for the built in watchdog hardware in Broadcom
1770	  BCM2835 SoC.
1771
1772	  To compile this driver as a loadable module, choose M here.
1773	  The module will be called bcm2835_wdt.
1774
1775config BCM_KONA_WDT
1776	tristate "BCM Kona Watchdog"
1777	depends on ARCH_BCM_MOBILE || COMPILE_TEST
1778	select WATCHDOG_CORE
1779	help
1780	  Support for the watchdog timer on the following Broadcom BCM281xx
1781	  family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1782	  BCM28155 variants.
1783
1784	  Say 'Y' or 'M' here to enable the driver. The module will be called
1785	  bcm_kona_wdt.
1786
1787config BCM_KONA_WDT_DEBUG
1788	bool "DEBUGFS support for BCM Kona Watchdog"
1789	depends on BCM_KONA_WDT
1790	help
1791	  If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1792	  access to the driver's internal data structures as well as watchdog
1793	  timer hardware registres.
1794
1795	  If in doubt, say 'N'.
1796
1797config BCM7038_WDT
1798	tristate "BCM7038 Watchdog"
1799	select WATCHDOG_CORE
1800	depends on HAS_IOMEM
1801	depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1802	help
1803	 Watchdog driver for the built-in hardware in Broadcom 7038 and
1804	 later SoCs used in set-top boxes.  BCM7038 was made public
1805	 during the 2004 CES, and since then, many Broadcom chips use this
1806	 watchdog block, including some cable modem chips.
1807
1808config IMGPDC_WDT
1809	tristate "Imagination Technologies PDC Watchdog Timer"
1810	depends on HAS_IOMEM
1811	depends on MIPS || COMPILE_TEST
1812	select WATCHDOG_CORE
1813	help
1814	  Driver for Imagination Technologies PowerDown Controller
1815	  Watchdog Timer.
1816
1817	  To compile this driver as a loadable module, choose M here.
1818	  The module will be called imgpdc_wdt.
1819
1820config LANTIQ_WDT
1821	tristate "Lantiq SoC watchdog"
1822	depends on LANTIQ
1823	select WATCHDOG_CORE
1824	help
1825	  Hardware driver for the Lantiq SoC Watchdog Timer.
1826
1827config LOONGSON1_WDT
1828	tristate "Loongson1 SoC hardware watchdog"
1829	depends on MACH_LOONGSON32
1830	select WATCHDOG_CORE
1831	help
1832	  Hardware driver for the Loongson1 SoC Watchdog Timer.
1833
1834config RALINK_WDT
1835	tristate "Ralink SoC watchdog"
1836	select WATCHDOG_CORE
1837	depends on RALINK
1838	help
1839	  Hardware driver for the Ralink SoC Watchdog Timer.
1840
1841config MT7621_WDT
1842	tristate "Mediatek SoC watchdog"
1843	select WATCHDOG_CORE
1844	depends on SOC_MT7620 || SOC_MT7621
1845	help
1846	  Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1847
1848config PIC32_WDT
1849	tristate "Microchip PIC32 hardware watchdog"
1850	select WATCHDOG_CORE
1851	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1852	help
1853	  Watchdog driver for the built in watchdog hardware in a PIC32.
1854
1855	  Configuration bits must be set appropriately for the watchdog to be
1856	  controlled by this driver.
1857
1858	  To compile this driver as a loadable module, choose M here.
1859	  The module will be called pic32-wdt.
1860
1861config PIC32_DMT
1862	tristate "Microchip PIC32 Deadman Timer"
1863	select WATCHDOG_CORE
1864	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1865	help
1866	  Watchdog driver for PIC32 instruction fetch counting timer. This specific
1867	  timer is typically be used in misson critical and safety critical
1868	  applications, where any single failure of the software functionality
1869	  and sequencing must be detected.
1870
1871	  To compile this driver as a loadable module, choose M here.
1872	  The module will be called pic32-dmt.
1873
1874# PARISC Architecture
1875
1876# POWERPC Architecture
1877
1878config GEF_WDT
1879	tristate "GE Watchdog Timer"
1880	depends on GE_FPGA
1881	help
1882	  Watchdog timer found in a number of GE single board computers.
1883
1884config MPC5200_WDT
1885	bool "MPC52xx Watchdog Timer"
1886	depends on PPC_MPC52xx || COMPILE_TEST
1887	help
1888	  Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1889
1890config 8xxx_WDT
1891	tristate "MPC8xxx Platform Watchdog Timer"
1892	depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1893	select WATCHDOG_CORE
1894	help
1895	  This driver is for a SoC level watchdog that exists on some
1896	  Freescale PowerPC processors. So far this driver supports:
1897	  - MPC8xx watchdogs
1898	  - MPC83xx watchdogs
1899	  - MPC86xx watchdogs
1900
1901	  For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1902
1903config MV64X60_WDT
1904	tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1905	depends on MV64X60 || COMPILE_TEST
1906
1907config PIKA_WDT
1908	tristate "PIKA FPGA Watchdog"
1909	depends on WARP || (PPC64 && COMPILE_TEST)
1910	default y
1911	help
1912	  This enables the watchdog in the PIKA FPGA. Currently used on
1913	  the Warp platform.
1914
1915config BOOKE_WDT
1916	tristate "PowerPC Book-E Watchdog Timer"
1917	depends on BOOKE || 4xx
1918	select WATCHDOG_CORE
1919	help
1920	  Watchdog driver for PowerPC Book-E chips, such as the Freescale
1921	  MPC85xx SOCs and the IBM PowerPC 440.
1922
1923	  Please see Documentation/watchdog/watchdog-api.rst for
1924	  more information.
1925
1926config BOOKE_WDT_DEFAULT_TIMEOUT
1927	int "PowerPC Book-E Watchdog Timer Default Timeout"
1928	depends on BOOKE_WDT
1929	default 38 if PPC_FSL_BOOK3E
1930	range 0 63 if PPC_FSL_BOOK3E
1931	default 3 if !PPC_FSL_BOOK3E
1932	range 0 3 if !PPC_FSL_BOOK3E
1933	help
1934	  Select the default watchdog timer period to be used by the PowerPC
1935	  Book-E watchdog driver.  A watchdog "event" occurs when the bit
1936	  position represented by this number transitions from zero to one.
1937
1938	  For Freescale Book-E processors, this is a number between 0 and 63.
1939	  For other Book-E processors, this is a number between 0 and 3.
1940
1941	  The value can be overridden by the wdt_period command-line parameter.
1942
1943config MEN_A21_WDT
1944	tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1945	select WATCHDOG_CORE
1946	depends on GPIOLIB || COMPILE_TEST
1947	help
1948	  Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1949
1950	  The driver can also be built as a module. If so, the module will be
1951	  called mena21_wdt.
1952
1953	  If unsure select N here.
1954
1955# PPC64 Architecture
1956
1957config WATCHDOG_RTAS
1958	tristate "RTAS watchdog"
1959	depends on PPC_RTAS
1960	help
1961	  This driver adds watchdog support for the RTAS watchdog.
1962
1963	  To compile this driver as a module, choose M here. The module
1964	  will be called wdrtas.
1965
1966# S390 Architecture
1967
1968config DIAG288_WATCHDOG
1969	tristate "System z diag288 Watchdog"
1970	depends on S390
1971	select WATCHDOG_CORE
1972	help
1973	  IBM s/390 and zSeries machines running under z/VM 5.1 or later
1974	  provide a virtual watchdog timer to their guest that cause a
1975	  user define Control Program command to be executed after a
1976	  timeout.
1977	  LPAR provides a very similar interface. This driver handles
1978	  both.
1979
1980	  To compile this driver as a module, choose M here. The module
1981	  will be called diag288_wdt.
1982
1983# SUPERH (sh + sh64) Architecture
1984
1985config SH_WDT
1986	tristate "SuperH Watchdog"
1987	depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1988	select WATCHDOG_CORE
1989	help
1990	  This driver adds watchdog support for the integrated watchdog in the
1991	  SuperH processors. If you have one of these processors and wish
1992	  to have watchdog support enabled, say Y, otherwise say N.
1993
1994	  As a side note, saying Y here will automatically boost HZ to 1000
1995	  so that the timer has a chance to clear the overflow counter. On
1996	  slower systems (such as the SH-2 and SH-3) this will likely yield
1997	  some performance issues. As such, the WDT should be avoided here
1998	  unless it is absolutely necessary.
1999
2000	  To compile this driver as a module, choose M here: the
2001	  module will be called shwdt.
2002
2003# SPARC Architecture
2004
2005# SPARC64 Architecture
2006
2007config WATCHDOG_CP1XXX
2008	tristate "CP1XXX Hardware Watchdog support"
2009	depends on SPARC64 && PCI
2010	help
2011	  This is the driver for the hardware watchdog timers present on
2012	  Sun Microsystems CompactPCI models CP1400 and CP1500.
2013
2014	  To compile this driver as a module, choose M here: the
2015	  module will be called cpwatchdog.
2016
2017	  If you do not have a CompactPCI model CP1400 or CP1500, or
2018	  another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
2019	  you should say N to this option.
2020
2021config WATCHDOG_RIO
2022	tristate "RIO Hardware Watchdog support"
2023	depends on SPARC64 && PCI
2024	help
2025	  Say Y here to support the hardware watchdog capability on Sun RIO
2026	  machines.  The watchdog timeout period is normally one minute but
2027	  can be changed with a boot-time parameter.
2028
2029config WATCHDOG_SUN4V
2030	tristate "Sun4v Watchdog support"
2031	select WATCHDOG_CORE
2032	depends on SPARC64
2033	help
2034	  Say Y here to support the hypervisor watchdog capability embedded
2035	  in the SPARC sun4v architecture.
2036
2037	  To compile this driver as a module, choose M here. The module will
2038	  be called sun4v_wdt.
2039
2040# XTENSA Architecture
2041
2042# Xen Architecture
2043
2044config XEN_WDT
2045	tristate "Xen Watchdog support"
2046	depends on XEN
2047	select WATCHDOG_CORE
2048	help
2049	  Say Y here to support the hypervisor watchdog capability provided
2050	  by Xen 4.0 and newer.  The watchdog timeout period is normally one
2051	  minute but can be changed with a boot-time parameter.
2052
2053config UML_WATCHDOG
2054	tristate "UML watchdog"
2055	depends on UML || COMPILE_TEST
2056
2057#
2058# ISA-based Watchdog Cards
2059#
2060
2061comment "ISA-based Watchdog Cards"
2062	depends on ISA
2063
2064config PCWATCHDOG
2065	tristate "Berkshire Products ISA-PC Watchdog"
2066	depends on ISA
2067	help
2068	  This is the driver for the Berkshire Products ISA-PC Watchdog card.
2069	  This card simply watches your kernel to make sure it doesn't freeze,
2070	  and if it does, it reboots your computer after a certain amount of
2071	  time. This driver is like the WDT501 driver but for different
2072	  hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. The PC
2073	  watchdog cards can be ordered from <http://www.berkprod.com/>.
2074
2075	  To compile this driver as a module, choose M here: the
2076	  module will be called pcwd.
2077
2078	  Most people will say N.
2079
2080config MIXCOMWD
2081	tristate "Mixcom Watchdog"
2082	depends on ISA
2083	help
2084	  This is a driver for the Mixcom hardware watchdog cards.  This
2085	  watchdog simply watches your kernel to make sure it doesn't freeze,
2086	  and if it does, it reboots your computer after a certain amount of
2087	  time.
2088
2089	  To compile this driver as a module, choose M here: the
2090	  module will be called mixcomwd.
2091
2092	  Most people will say N.
2093
2094config WDT
2095	tristate "WDT Watchdog timer"
2096	depends on ISA
2097	help
2098	  If you have a WDT500P or WDT501P watchdog board, say Y here,
2099	  otherwise N. It is not possible to probe for this board, which means
2100	  that you have to inform the kernel about the IO port and IRQ that
2101	  is needed (you can do this via the io and irq parameters)
2102
2103	  To compile this driver as a module, choose M here: the
2104	  module will be called wdt.
2105
2106#
2107# PCI-based Watchdog Cards
2108#
2109
2110comment "PCI-based Watchdog Cards"
2111	depends on PCI
2112
2113config PCIPCWATCHDOG
2114	tristate "Berkshire Products PCI-PC Watchdog"
2115	depends on PCI
2116	help
2117	  This is the driver for the Berkshire Products PCI-PC Watchdog card.
2118	  This card simply watches your kernel to make sure it doesn't freeze,
2119	  and if it does, it reboots your computer after a certain amount of
2120	  time. The card can also monitor the internal temperature of the PC.
2121	  More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2122
2123	  To compile this driver as a module, choose M here: the
2124	  module will be called pcwd_pci.
2125
2126	  Most people will say N.
2127
2128config WDTPCI
2129	tristate "PCI-WDT500/501 Watchdog timer"
2130	depends on PCI
2131	help
2132	  If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2133
2134	  If you have a PCI-WDT501 watchdog board then you can enable the
2135	  temperature sensor by setting the type parameter to 501.
2136
2137	  If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2138	  can do this via the tachometer parameter. Only do this if you have a
2139	  fan tachometer actually set up.
2140
2141	  To compile this driver as a module, choose M here: the
2142	  module will be called wdt_pci.
2143
2144#
2145# USB-based Watchdog Cards
2146#
2147
2148comment "USB-based Watchdog Cards"
2149	depends on USB
2150
2151config USBPCWATCHDOG
2152	tristate "Berkshire Products USB-PC Watchdog"
2153	depends on USB
2154	help
2155	  This is the driver for the Berkshire Products USB-PC Watchdog card.
2156	  This card simply watches your kernel to make sure it doesn't freeze,
2157	  and if it does, it reboots your computer after a certain amount of
2158	  time. The card can also monitor the internal temperature of the PC.
2159	  More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2160
2161	  To compile this driver as a module, choose M here: the
2162	  module will be called pcwd_usb.
2163
2164	  Most people will say N.
2165
2166endif # WATCHDOG
2167