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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	depends on HAS_IOMEM
390	select MFD_SYSCON
391	select WATCHDOG_CORE
392	help
393	   Say Y here to include support for the watchdog timer found on
394	   Marvell Armada 37xx SoCs.
395	   To compile this driver as a module, choose M here: the
396	   module will be called armada_37xx_wdt.
397
398config ASM9260_WATCHDOG
399	tristate "Alphascale ASM9260 watchdog"
400	depends on MACH_ASM9260 || COMPILE_TEST
401	depends on OF
402	select WATCHDOG_CORE
403	select RESET_CONTROLLER
404	help
405	  Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your
406	  system when the timeout is reached.
407
408config AT91RM9200_WATCHDOG
409	tristate "AT91RM9200 watchdog"
410	depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
411	help
412	  Watchdog timer embedded into AT91RM9200 chips. This will reboot your
413	  system when the timeout is reached.
414
415config AT91SAM9X_WATCHDOG
416	tristate "AT91SAM9X / AT91CAP9 watchdog"
417	depends on ARCH_AT91 || COMPILE_TEST
418	select WATCHDOG_CORE
419	help
420	  Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
421	  reboot your system when the timeout is reached.
422
423config SAMA5D4_WATCHDOG
424	tristate "Atmel SAMA5D4 Watchdog Timer"
425	depends on ARCH_AT91 || COMPILE_TEST
426	select WATCHDOG_CORE
427	help
428	  Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
429	  Its Watchdog Timer Mode Register can be written more than once.
430	  This will reboot your system when the timeout is reached.
431
432config CADENCE_WATCHDOG
433	tristate "Cadence Watchdog Timer"
434	depends on HAS_IOMEM
435	select WATCHDOG_CORE
436	help
437	  Say Y here if you want to include support for the watchdog
438	  timer in the Xilinx Zynq.
439
440config 21285_WATCHDOG
441	tristate "DC21285 watchdog"
442	depends on FOOTBRIDGE
443	help
444	  The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
445	  here if you wish to use this. Alternatively say M to compile the
446	  driver as a module, which will be called wdt285.
447
448	  This driver does not work on all machines. In particular, early CATS
449	  boards have hardware problems that will cause the machine to simply
450	  lock up if the watchdog fires.
451
452	  "If in doubt, leave it out" - say N.
453
454config 977_WATCHDOG
455	tristate "NetWinder WB83C977 watchdog"
456	depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
457	help
458	  Say Y here to include support for the WB977 watchdog included in
459	  NetWinder machines. Alternatively say M to compile the driver as
460	  a module, which will be called wdt977.
461
462	  Not sure? It's safe to say N.
463
464config FTWDT010_WATCHDOG
465	tristate "Faraday Technology FTWDT010 watchdog"
466	depends on ARM || COMPILE_TEST
467	select WATCHDOG_CORE
468	default ARCH_GEMINI
469	help
470	  Say Y here if to include support for the Faraday Technology
471	  FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
472	  family of devices.
473
474	  To compile this driver as a module, choose M here: the
475	  module will be called ftwdt010_wdt.
476
477config IXP4XX_WATCHDOG
478	tristate "IXP4xx Watchdog"
479	depends on ARCH_IXP4XX
480	help
481	  Say Y here if to include support for the watchdog timer
482	  in the Intel IXP4xx network processors. This driver can
483	  be built as a module by choosing M. The module will
484	  be called ixp4xx_wdt.
485
486	  Note: The internal IXP4xx watchdog does a soft CPU reset
487	  which doesn't reset any peripherals. There are circumstances
488	  where the watchdog will fail to reset the board correctly
489	  (e.g., if the boot ROM is in an unreadable state).
490
491	  Say N if you are unsure.
492
493config S3C2410_WATCHDOG
494	tristate "S3C2410 Watchdog"
495	depends on ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || \
496		   COMPILE_TEST
497	select WATCHDOG_CORE
498	select MFD_SYSCON if ARCH_EXYNOS
499	help
500	  Watchdog timer block in the Samsung SoCs. This will reboot
501	  the system when the timer expires with the watchdog enabled.
502
503	  The driver is limited by the speed of the system's PCLK
504	  signal, so with reasonably fast systems (PCLK around 50-66MHz)
505	  then watchdog intervals of over approximately 20seconds are
506	  unavailable.
507
508	  The driver can be built as a module by choosing M, and will
509	  be called s3c2410_wdt
510
511config SA1100_WATCHDOG
512	tristate "SA1100/PXA2xx watchdog"
513	depends on ARCH_SA1100 || ARCH_PXA
514	help
515	  Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
516	  reboot your system when timeout is reached.
517
518	  NOTE: once enabled, this timer cannot be disabled.
519
520	  To compile this driver as a module, choose M here: the
521	  module will be called sa1100_wdt.
522
523config DW_WATCHDOG
524	tristate "Synopsys DesignWare watchdog"
525	depends on HAS_IOMEM
526	select WATCHDOG_CORE
527	help
528	  Say Y here if to include support for the Synopsys DesignWare
529	  watchdog timer found in many chips.
530	  To compile this driver as a module, choose M here: the
531	  module will be called dw_wdt.
532
533config EP93XX_WATCHDOG
534	tristate "EP93xx Watchdog"
535	depends on ARCH_EP93XX || COMPILE_TEST
536	select WATCHDOG_CORE
537	help
538	  Say Y here if to include support for the watchdog timer
539	  embedded in the Cirrus Logic EP93xx family of devices.
540
541	  To compile this driver as a module, choose M here: the
542	  module will be called ep93xx_wdt.
543
544config OMAP_WATCHDOG
545	tristate "OMAP Watchdog"
546	depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
547	select WATCHDOG_CORE
548	help
549	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.  Say 'Y'
550	  here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
551
552config PNX4008_WATCHDOG
553	tristate "LPC32XX Watchdog"
554	depends on ARCH_LPC32XX || COMPILE_TEST
555	select WATCHDOG_CORE
556	help
557	  Say Y here if to include support for the watchdog timer
558	  in the LPC32XX processor.
559	  This driver can be built as a module by choosing M. The module
560	  will be called pnx4008_wdt.
561
562	  Say N if you are unsure.
563
564config IOP_WATCHDOG
565	tristate "IOP Watchdog"
566	depends on ARCH_IOP13XX
567	select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
568	help
569	  Say Y here if to include support for the watchdog timer
570	  in the Intel IOP3XX & IOP13XX I/O Processors.  This driver can
571	  be built as a module by choosing M. The module will
572	  be called iop_wdt.
573
574	  Note: The IOP13XX watchdog does an Internal Bus Reset which will
575	  affect both cores and the peripherals of the IOP.  The ATU-X
576	  and/or ATUe configuration registers will remain intact, but if
577	  operating as an Root Complex and/or Central Resource, the PCI-X
578	  and/or PCIe busses will also be reset.  THIS IS A VERY BIG HAMMER.
579
580config DAVINCI_WATCHDOG
581	tristate "DaVinci watchdog"
582	depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
583	select WATCHDOG_CORE
584	help
585	  Say Y here if to include support for the watchdog timer
586	  in the DaVinci DM644x/DM646x or Keystone processors.
587	  To compile this driver as a module, choose M here: the
588	  module will be called davinci_wdt.
589
590	  NOTE: once enabled, this timer cannot be disabled.
591	  Say N if you are unsure.
592
593config K3_RTI_WATCHDOG
594	tristate "Texas Instruments K3 RTI watchdog"
595	depends on ARCH_K3 || COMPILE_TEST
596	select WATCHDOG_CORE
597	help
598	  Say Y here if you want to include support for the K3 watchdog
599	  timer (RTI module) available in the K3 generation of processors.
600
601config ORION_WATCHDOG
602	tristate "Orion watchdog"
603	depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || (COMPILE_TEST && !ARCH_EBSA110)
604	depends on ARM
605	select WATCHDOG_CORE
606	help
607	  Say Y here if to include support for the watchdog timer
608	  in the Marvell Orion5x and Kirkwood ARM SoCs.
609	  To compile this driver as a module, choose M here: the
610	  module will be called orion_wdt.
611
612config RN5T618_WATCHDOG
613	tristate "Ricoh RN5T618 watchdog"
614	depends on MFD_RN5T618 || COMPILE_TEST
615	select WATCHDOG_CORE
616	help
617	  If you say yes here you get support for watchdog on the Ricoh
618	  RN5T618 PMIC.
619
620	  This driver can also be built as a module.  If so, the module
621	  will be called rn5t618_wdt.
622
623config SUNXI_WATCHDOG
624	tristate "Allwinner SoCs watchdog support"
625	depends on ARCH_SUNXI || COMPILE_TEST
626	select WATCHDOG_CORE
627	help
628	  Say Y here to include support for the watchdog timer
629	  in Allwinner SoCs.
630	  To compile this driver as a module, choose M here: the
631	  module will be called sunxi_wdt.
632
633config COH901327_WATCHDOG
634	bool "ST-Ericsson COH 901 327 watchdog"
635	depends on ARCH_U300 || (ARM && COMMON_CLK && COMPILE_TEST)
636	default y if MACH_U300
637	select WATCHDOG_CORE
638	help
639	  Say Y here to include Watchdog timer support for the
640	  watchdog embedded into the ST-Ericsson U300 series platforms.
641	  This watchdog is used to reset the system and thus cannot be
642	  compiled as a module.
643
644config NPCM7XX_WATCHDOG
645	tristate "Nuvoton NPCM750 watchdog"
646	depends on ARCH_NPCM || COMPILE_TEST
647	default y if ARCH_NPCM7XX
648	select WATCHDOG_CORE
649	help
650	  Say Y here to include Watchdog timer support for the
651	  watchdog embedded into the NPCM7xx.
652	  This watchdog is used to reset the system and thus cannot be
653	  compiled as a module.
654
655config TWL4030_WATCHDOG
656	tristate "TWL4030 Watchdog"
657	depends on TWL4030_CORE
658	select WATCHDOG_CORE
659	help
660	  Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
661	  watchdog timer support for TWL4030 chips.
662
663config STMP3XXX_RTC_WATCHDOG
664	tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
665	depends on RTC_DRV_STMP || COMPILE_TEST
666	select WATCHDOG_CORE
667	help
668	  Say Y here to include support for the watchdog timer inside
669	  the RTC for the STMP37XX/378X or i.MX23/28 SoC.
670	  To compile this driver as a module, choose M here: the
671	  module will be called stmp3xxx_rtc_wdt.
672
673config TS4800_WATCHDOG
674	tristate "TS-4800 Watchdog"
675	depends on HAS_IOMEM && OF
676	depends on SOC_IMX51 || COMPILE_TEST
677	select WATCHDOG_CORE
678	select MFD_SYSCON
679	help
680	  Technologic Systems TS-4800 has watchdog timer implemented in
681	  an external FPGA. Say Y here if you want to support for the
682	  watchdog timer on TS-4800 board.
683
684config TS72XX_WATCHDOG
685	tristate "TS-72XX SBC Watchdog"
686	depends on MACH_TS72XX || COMPILE_TEST
687	select WATCHDOG_CORE
688	help
689	  Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
690	  watchdog timer implemented in a external CPLD chip. Say Y here
691	  if you want to support for the watchdog timer on TS-72XX boards.
692
693	  To compile this driver as a module, choose M here: the
694	  module will be called ts72xx_wdt.
695
696config MAX63XX_WATCHDOG
697	tristate "Max63xx watchdog"
698	depends on HAS_IOMEM
699	select WATCHDOG_CORE
700	help
701	  Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
702
703config MAX77620_WATCHDOG
704	tristate "Maxim Max77620 Watchdog Timer"
705	depends on MFD_MAX77620 || COMPILE_TEST
706	select WATCHDOG_CORE
707	help
708	 This is the driver for the Max77620 watchdog timer.
709	 Say 'Y' here to enable the watchdog timer support for
710	 MAX77620 chips. To compile this driver as a module,
711	 choose M here: the module will be called max77620_wdt.
712
713config IMX2_WDT
714	tristate "IMX2+ Watchdog"
715	depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
716	select REGMAP_MMIO
717	select WATCHDOG_CORE
718	help
719	  This is the driver for the hardware watchdog
720	  on the Freescale IMX2 and later processors.
721	  If you have one of these processors and wish to have
722	  watchdog support enabled, say Y, otherwise say N.
723
724	  To compile this driver as a module, choose M here: the
725	  module will be called imx2_wdt.
726
727config IMX_SC_WDT
728	tristate "IMX SC Watchdog"
729	depends on HAVE_ARM_SMCCC
730	depends on IMX_SCU
731	select WATCHDOG_CORE
732	help
733	  This is the driver for the system controller watchdog
734	  on the NXP i.MX SoCs with system controller inside, the
735	  watchdog driver will call ARM SMC API and trap into
736	  ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
737	  will request system controller to execute the operations.
738	  If you have one of these processors and wish to have
739	  watchdog support enabled, say Y, otherwise say N.
740
741	  To compile this driver as a module, choose M here: the
742	  module will be called imx_sc_wdt.
743
744config IMX7ULP_WDT
745	tristate "IMX7ULP Watchdog"
746	depends on ARCH_MXC || COMPILE_TEST
747	select WATCHDOG_CORE
748	help
749	  This is the driver for the hardware watchdog on the Freescale
750	  IMX7ULP and later processors. If you have one of these
751	  processors and wish to have watchdog support enabled,
752	  say Y, otherwise say N.
753
754	  To compile this driver as a module, choose M here: the
755	  module will be called imx7ulp_wdt.
756
757config UX500_WATCHDOG
758	tristate "ST-Ericsson Ux500 watchdog"
759	depends on MFD_DB8500_PRCMU
760	select WATCHDOG_CORE
761	default y
762	help
763	  Say Y here to include Watchdog timer support for the watchdog
764	  existing in the prcmu of ST-Ericsson Ux500 series platforms.
765
766	  To compile this driver as a module, choose M here: the
767	  module will be called ux500_wdt.
768
769config RETU_WATCHDOG
770	tristate "Retu watchdog"
771	depends on MFD_RETU
772	select WATCHDOG_CORE
773	help
774	  Retu watchdog driver for Nokia Internet Tablets (770, N800,
775	  N810). At least on N800 the watchdog cannot be disabled, so
776	  this driver is essential and you should enable it.
777
778	  To compile this driver as a module, choose M here: the
779	  module will be called retu_wdt.
780
781config MOXART_WDT
782	tristate "MOXART watchdog"
783	depends on ARCH_MOXART || COMPILE_TEST
784	help
785	  Say Y here to include Watchdog timer support for the watchdog
786	  existing on the MOXA ART SoC series platforms.
787
788	  To compile this driver as a module, choose M here: the
789	  module will be called moxart_wdt.
790
791config SIRFSOC_WATCHDOG
792	tristate "SiRFSOC watchdog"
793	depends on HAS_IOMEM
794	depends on ARCH_SIRF || COMPILE_TEST
795	select WATCHDOG_CORE
796	default y
797	help
798	  Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
799	  the watchdog triggers the system will be reset.
800
801config ST_LPC_WATCHDOG
802	tristate "STMicroelectronics LPC Watchdog"
803	depends on ARCH_STI || COMPILE_TEST
804	depends on OF
805	select WATCHDOG_CORE
806	help
807	  Say Y here to include STMicroelectronics Low Power Controller
808	  (LPC) based Watchdog timer support.
809
810	  To compile this driver as a module, choose M here: the
811	  module will be called st_lpc_wdt.
812
813config TEGRA_WATCHDOG
814	tristate "Tegra watchdog"
815	depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
816	select WATCHDOG_CORE
817	help
818	  Say Y here to include support for the watchdog timer
819	  embedded in NVIDIA Tegra SoCs.
820
821	  To compile this driver as a module, choose M here: the
822	  module will be called tegra_wdt.
823
824config QCOM_WDT
825	tristate "QCOM watchdog"
826	depends on HAS_IOMEM
827	depends on ARCH_QCOM || COMPILE_TEST
828	select WATCHDOG_CORE
829	help
830	  Say Y here to include Watchdog timer support for the watchdog found
831	  on QCOM chipsets.  Currently supported targets are the MSM8960,
832	  APQ8064, and IPQ8064.
833
834	  To compile this driver as a module, choose M here: the
835	  module will be called qcom_wdt.
836
837config MESON_GXBB_WATCHDOG
838	tristate "Amlogic Meson GXBB SoCs watchdog support"
839	depends on ARCH_MESON || COMPILE_TEST
840	select WATCHDOG_CORE
841	help
842	  Say Y here to include support for the watchdog timer
843	  in Amlogic Meson GXBB SoCs.
844	  To compile this driver as a module, choose M here: the
845	  module will be called meson_gxbb_wdt.
846
847config MESON_WATCHDOG
848	tristate "Amlogic Meson SoCs watchdog support"
849	depends on ARCH_MESON || COMPILE_TEST
850	select WATCHDOG_CORE
851	help
852	  Say Y here to include support for the watchdog timer
853	  in Amlogic Meson SoCs.
854	  To compile this driver as a module, choose M here: the
855	  module will be called meson_wdt.
856
857config MEDIATEK_WATCHDOG
858	tristate "Mediatek SoCs watchdog support"
859	depends on ARCH_MEDIATEK || COMPILE_TEST
860	select WATCHDOG_CORE
861	select RESET_CONTROLLER
862	help
863	  Say Y here to include support for the watchdog timer
864	  in Mediatek SoCs.
865	  To compile this driver as a module, choose M here: the
866	  module will be called mtk_wdt.
867
868config DIGICOLOR_WATCHDOG
869	tristate "Conexant Digicolor SoCs watchdog support"
870	depends on ARCH_DIGICOLOR || COMPILE_TEST
871	select WATCHDOG_CORE
872	help
873	  Say Y here to include support for the watchdog timer
874	  in Conexant Digicolor SoCs.
875	  To compile this driver as a module, choose M here: the
876	  module will be called digicolor_wdt.
877
878config ARM_SMC_WATCHDOG
879	tristate "ARM Secure Monitor Call based watchdog support"
880	depends on ARM || ARM64
881	depends on OF
882	depends on HAVE_ARM_SMCCC
883	select WATCHDOG_CORE
884	help
885	  Say Y here to include support for a watchdog timer
886	  implemented by the EL3 Secure Monitor on ARM platforms.
887	  Requires firmware support.
888	  To compile this driver as a module, choose M here: the
889	  module will be called arm_smc_wdt.
890
891config LPC18XX_WATCHDOG
892	tristate "LPC18xx/43xx Watchdog"
893	depends on ARCH_LPC18XX || COMPILE_TEST
894	depends on HAS_IOMEM
895	select WATCHDOG_CORE
896	help
897	  Say Y here if to include support for the watchdog timer
898	  in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
899	  processors.
900	  To compile this driver as a module, choose M here: the
901	  module will be called lpc18xx_wdt.
902
903config ATLAS7_WATCHDOG
904	tristate "CSRatlas7 watchdog"
905	depends on ARCH_ATLAS7 || COMPILE_TEST
906	help
907	  Say Y here to include Watchdog timer support for the watchdog
908	  existing on the CSRatlas7 series platforms.
909
910	  To compile this driver as a module, choose M here: the
911	  module will be called atlas7_wdt.
912
913config RENESAS_WDT
914	tristate "Renesas WDT Watchdog"
915	depends on ARCH_RENESAS || COMPILE_TEST
916	select WATCHDOG_CORE
917	help
918	  This driver adds watchdog support for the integrated watchdogs in the
919	  Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
920
921config RENESAS_RZAWDT
922	tristate "Renesas RZ/A WDT Watchdog"
923	depends on ARCH_RENESAS || COMPILE_TEST
924	select WATCHDOG_CORE
925	help
926	  This driver adds watchdog support for the integrated watchdogs in the
927	  Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
928
929config ASPEED_WATCHDOG
930	tristate "Aspeed BMC watchdog support"
931	depends on ARCH_ASPEED || COMPILE_TEST
932	select WATCHDOG_CORE
933	help
934	  Say Y here to include support for the watchdog timer
935	  in Aspeed BMC SoCs.
936
937	  This driver is required to reboot the SoC.
938
939	  To compile this driver as a module, choose M here: the
940	  module will be called aspeed_wdt.
941
942config ZX2967_WATCHDOG
943	tristate "ZTE zx2967 SoCs watchdog support"
944	depends on ARCH_ZX
945	select WATCHDOG_CORE
946	help
947	  Say Y here to include support for the watchdog timer
948	  in ZTE zx2967 SoCs.
949	  To compile this driver as a module, choose M here: the
950	  module will be called zx2967_wdt.
951
952config STM32_WATCHDOG
953	tristate "STM32 Independent WatchDoG (IWDG) support"
954	depends on ARCH_STM32
955	select WATCHDOG_CORE
956	default y
957	help
958	  Say Y here to include support for the watchdog timer
959	  in stm32 SoCs.
960
961	  To compile this driver as a module, choose M here: the
962	  module will be called stm32_iwdg.
963
964config STPMIC1_WATCHDOG
965	tristate "STPMIC1 PMIC watchdog support"
966	depends on MFD_STPMIC1
967	select WATCHDOG_CORE
968	help
969	  Say Y here to include watchdog support embedded into STPMIC1 PMIC.
970	  If the watchdog timer expires, stpmic1 will shut down all its power
971	  supplies.
972
973	  To compile this driver as a module, choose M here: the
974	  module will be called spmic1_wdt.
975
976config UNIPHIER_WATCHDOG
977	tristate "UniPhier watchdog support"
978	depends on ARCH_UNIPHIER || COMPILE_TEST
979	depends on OF && MFD_SYSCON
980	select WATCHDOG_CORE
981	help
982	  Say Y here to include support watchdog timer embedded
983	  into the UniPhier system.
984
985	  To compile this driver as a module, choose M here: the
986	  module will be called uniphier_wdt.
987
988config RTD119X_WATCHDOG
989	bool "Realtek RTD119x/RTD129x watchdog support"
990	depends on ARCH_REALTEK || COMPILE_TEST
991	depends on OF
992	select WATCHDOG_CORE
993	default ARCH_REALTEK
994	help
995	  Say Y here to include support for the watchdog timer in
996	  Realtek RTD1295 SoCs.
997
998config SPRD_WATCHDOG
999	tristate "Spreadtrum watchdog support"
1000	depends on ARCH_SPRD || COMPILE_TEST
1001	select WATCHDOG_CORE
1002	help
1003	  Say Y here to include watchdog timer supported
1004	  by Spreadtrum system.
1005
1006config PM8916_WATCHDOG
1007	tristate "QCOM PM8916 pmic watchdog"
1008	depends on OF && MFD_SPMI_PMIC
1009	select WATCHDOG_CORE
1010	help
1011	  Say Y here to include support watchdog timer embedded into the
1012	  pm8916 module.
1013
1014config VISCONTI_WATCHDOG
1015	tristate "Toshiba Visconti series watchdog support"
1016	depends on ARCH_VISCONTI || COMPILE_TEST
1017	select WATCHDOG_CORE
1018	help
1019	  Say Y here to include support for the watchdog timer in Toshiba
1020	  Visconti SoCs.
1021
1022# X86 (i386 + ia64 + x86_64) Architecture
1023
1024config ACQUIRE_WDT
1025	tristate "Acquire SBC Watchdog Timer"
1026	depends on X86
1027	help
1028	  This is the driver for the hardware watchdog on Single Board
1029	  Computers produced by Acquire Inc (and others). This watchdog
1030	  simply watches your kernel to make sure it doesn't freeze, and if
1031	  it does, it reboots your computer after a certain amount of time.
1032
1033	  To compile this driver as a module, choose M here: the
1034	  module will be called acquirewdt.
1035
1036	  Most people will say N.
1037
1038config ADVANTECH_WDT
1039	tristate "Advantech SBC Watchdog Timer"
1040	depends on X86
1041	help
1042	  If you are configuring a Linux kernel for the Advantech single-board
1043	  computer, say `Y' here to support its built-in watchdog timer
1044	  feature. More information can be found at
1045	  <https://www.advantech.com.tw/products/>
1046
1047config ALIM1535_WDT
1048	tristate "ALi M1535 PMU Watchdog Timer"
1049	depends on X86 && PCI
1050	help
1051	  This is the driver for the hardware watchdog on the ALi M1535 PMU.
1052
1053	  To compile this driver as a module, choose M here: the
1054	  module will be called alim1535_wdt.
1055
1056	  Most people will say N.
1057
1058config ALIM7101_WDT
1059	tristate "ALi M7101 PMU Computer Watchdog"
1060	depends on PCI
1061	help
1062	  This is the driver for the hardware watchdog on the ALi M7101 PMU
1063	  as used in the x86 Cobalt servers and also found in some
1064	  SPARC Netra servers too.
1065
1066	  To compile this driver as a module, choose M here: the
1067	  module will be called alim7101_wdt.
1068
1069	  Most people will say N.
1070
1071config EBC_C384_WDT
1072	tristate "WinSystems EBC-C384 Watchdog Timer"
1073	depends on X86
1074	select ISA_BUS_API
1075	select WATCHDOG_CORE
1076	help
1077	  Enables watchdog timer support for the watchdog timer on the
1078	  WinSystems EBC-C384 motherboard. The timeout may be configured via
1079	  the timeout module parameter.
1080
1081config F71808E_WDT
1082	tristate "Fintek F718xx, F818xx Super I/O Watchdog"
1083	depends on X86
1084	help
1085	  This is the driver for the hardware watchdog on the Fintek F71808E,
1086	  F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and
1087	  F81866 Super I/O controllers.
1088
1089	  You can compile this driver directly into the kernel, or use
1090	  it as a module.  The module will be called f71808e_wdt.
1091
1092config SP5100_TCO
1093	tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
1094	depends on X86 && PCI
1095	select WATCHDOG_CORE
1096	help
1097	  Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
1098	  (Total Cost of Ownership) timer is a watchdog timer that will reboot
1099	  the machine after its expiration. The expiration time can be
1100	  configured with the "heartbeat" parameter.
1101
1102	  To compile this driver as a module, choose M here: the
1103	  module will be called sp5100_tco.
1104
1105config GEODE_WDT
1106	tristate "AMD Geode CS5535/CS5536 Watchdog"
1107	depends on CS5535_MFGPT
1108	help
1109	  This driver enables a watchdog capability built into the
1110	  CS5535/CS5536 companion chips for the AMD Geode GX and LX
1111	  processors.  This watchdog watches your kernel to make sure
1112	  it doesn't freeze, and if it does, it reboots your computer after
1113	  a certain amount of time.
1114
1115	  You can compile this driver directly into the kernel, or use
1116	  it as a module.  The module will be called geodewdt.
1117
1118config SC520_WDT
1119	tristate "AMD Elan SC520 processor Watchdog"
1120	depends on MELAN || COMPILE_TEST
1121	help
1122	  This is the driver for the hardware watchdog built in to the
1123	  AMD "Elan" SC520 microcomputer commonly used in embedded systems.
1124	  This watchdog simply watches your kernel to make sure it doesn't
1125	  freeze, and if it does, it reboots your computer after a certain
1126	  amount of time.
1127
1128	  You can compile this driver directly into the kernel, or use
1129	  it as a module.  The module will be called sc520_wdt.
1130
1131config SBC_FITPC2_WATCHDOG
1132	tristate "Compulab SBC-FITPC2 watchdog"
1133	depends on X86
1134	help
1135	  This is the driver for the built-in watchdog timer on the fit-PC2,
1136	  fit-PC2i, CM-iAM single-board computers made by Compulab.
1137
1138	  It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
1139	  When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
1140
1141	  Entering BIOS setup temporary disables watchdog operation regardless to current state,
1142	  so system will not be restarted while user in BIOS setup.
1143
1144	  Once watchdog was enabled the system will be restarted every
1145	  "Watchdog Timer Value" period, so to prevent it user can restart or
1146	  disable the watchdog.
1147
1148	  To compile this driver as a module, choose M here: the
1149	  module will be called sbc_fitpc2_wdt.
1150
1151	  Most people will say N.
1152
1153config EUROTECH_WDT
1154	tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1155	depends on X86
1156	help
1157	  Enable support for the watchdog timer on the Eurotech CPU-1220 and
1158	  CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
1159	  information are at <http://www.eurotech.it/>.
1160
1161config IB700_WDT
1162	tristate "IB700 SBC Watchdog Timer"
1163	depends on X86
1164	help
1165	  This is the driver for the hardware watchdog on the IB700 Single
1166	  Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
1167	  simply watches your kernel to make sure it doesn't freeze, and if
1168	  it does, it reboots your computer after a certain amount of time.
1169
1170	  This driver is like the WDT501 driver but for slightly different hardware.
1171
1172	  To compile this driver as a module, choose M here: the
1173	  module will be called ib700wdt.
1174
1175	  Most people will say N.
1176
1177config IBMASR
1178	tristate "IBM Automatic Server Restart"
1179	depends on X86
1180	help
1181	  This is the driver for the IBM Automatic Server Restart watchdog
1182	  timer built-in into some eServer xSeries machines.
1183
1184	  To compile this driver as a module, choose M here: the
1185	  module will be called ibmasr.
1186
1187config WAFER_WDT
1188	tristate "ICP Single Board Computer Watchdog Timer"
1189	depends on X86
1190	help
1191	  This is a driver for the hardware watchdog on the ICP Single
1192	  Board Computer. This driver is working on (at least) the following
1193	  IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1194
1195	  To compile this driver as a module, choose M here: the
1196	  module will be called wafer5823wdt.
1197
1198config I6300ESB_WDT
1199	tristate "Intel 6300ESB Timer/Watchdog"
1200	depends on PCI
1201	select WATCHDOG_CORE
1202	help
1203	  Hardware driver for the watchdog timer built into the Intel
1204	  6300ESB controller hub.
1205
1206	  To compile this driver as a module, choose M here: the
1207	  module will be called i6300esb.
1208
1209config IE6XX_WDT
1210	tristate "Intel Atom E6xx Watchdog"
1211	depends on X86 && PCI
1212	select WATCHDOG_CORE
1213	select MFD_CORE
1214	select LPC_SCH
1215	help
1216	  Hardware driver for the watchdog timer built into the Intel
1217	  Atom E6XX (TunnelCreek) processor.
1218
1219	  To compile this driver as a module, choose M here: the
1220	  module will be called ie6xx_wdt.
1221
1222config INTEL_SCU_WATCHDOG
1223	bool "Intel SCU Watchdog for Mobile Platforms"
1224	depends on X86_INTEL_MID
1225	help
1226	  Hardware driver for the watchdog time built into the Intel SCU
1227	  for Intel Mobile Platforms.
1228
1229	  To compile this driver as a module, choose M here.
1230
1231config INTEL_MID_WATCHDOG
1232	tristate "Intel MID Watchdog Timer"
1233	depends on X86_INTEL_MID
1234	select WATCHDOG_CORE
1235	help
1236	  Watchdog timer driver built into the Intel SCU for Intel MID
1237	  Platforms.
1238
1239	  This driver currently supports only the watchdog evolution
1240	  implementation in SCU, available for Merrifield generation.
1241
1242	  To compile this driver as a module, choose M here.
1243
1244config ITCO_WDT
1245	tristate "Intel TCO Timer/Watchdog"
1246	depends on (X86 || IA64) && PCI
1247	select WATCHDOG_CORE
1248	depends on I2C || I2C=n
1249	depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT
1250	select LPC_ICH if !EXPERT
1251	select I2C_I801 if !EXPERT && I2C
1252	help
1253	  Hardware driver for the intel TCO timer based watchdog devices.
1254	  These drivers are included in the Intel 82801 I/O Controller
1255	  Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1256	  controller hub.
1257
1258	  The TCO (Total Cost of Ownership) timer is a watchdog timer
1259	  that will reboot the machine after its second expiration. The
1260	  expiration time can be configured with the "heartbeat" parameter.
1261
1262	  On some motherboards the driver may fail to reset the chipset's
1263	  NO_REBOOT flag which prevents the watchdog from rebooting the
1264	  machine. If this is the case you will get a kernel message like
1265	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1266
1267	  To compile this driver as a module, choose M here: the
1268	  module will be called iTCO_wdt.
1269
1270config ITCO_VENDOR_SUPPORT
1271	bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1272	depends on ITCO_WDT
1273	help
1274	  Add vendor specific support to the intel TCO timer based watchdog
1275	  devices. At this moment we only have additional support for some
1276	  SuperMicro Inc. motherboards.
1277
1278config IT8712F_WDT
1279	tristate "IT8712F (Smart Guardian) Watchdog Timer"
1280	depends on X86
1281	help
1282	  This is the driver for the built-in watchdog timer on the IT8712F
1283	  Super I/0 chipset used on many motherboards.
1284
1285	  If the driver does not work, then make sure that the game port in
1286	  the BIOS is enabled.
1287
1288	  To compile this driver as a module, choose M here: the
1289	  module will be called it8712f_wdt.
1290
1291config IT87_WDT
1292	tristate "IT87 Watchdog Timer"
1293	depends on X86
1294	select WATCHDOG_CORE
1295	help
1296	  This is the driver for the hardware watchdog on the ITE IT8607,
1297	  IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1298	  IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1299	  IT8783 Super I/O chips.
1300
1301	  This watchdog simply watches your kernel to make sure it doesn't
1302	  freeze, and if it does, it reboots your computer after a certain
1303	  amount of time.
1304
1305	  To compile this driver as a module, choose M here: the module will
1306	  be called it87_wdt.
1307
1308config HP_WATCHDOG
1309	tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1310	select WATCHDOG_CORE
1311	depends on X86 && PCI
1312	help
1313	  A software monitoring watchdog and NMI handling driver. This driver
1314	  will detect lockups and provide a stack trace. This is a driver that
1315	  will only load on an HP ProLiant system with a minimum of iLO2 support.
1316	  To compile this driver as a module, choose M here: the module will be
1317	  called hpwdt.
1318
1319config HPWDT_NMI_DECODING
1320	bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1321	depends on HP_WATCHDOG
1322	default y
1323	help
1324	  Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1325	  "Generate NMI to System" virtual button.  When an NMI is claimed
1326	  by the driver, panic is called.
1327
1328config KEMPLD_WDT
1329	tristate "Kontron COM Watchdog Timer"
1330	depends on MFD_KEMPLD
1331	select WATCHDOG_CORE
1332	help
1333	  Support for the PLD watchdog on some Kontron ETX and COMexpress
1334	  (ETXexpress) modules
1335
1336	  This driver can also be built as a module. If so, the module will be
1337	  called kempld_wdt.
1338
1339config SC1200_WDT
1340	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1341	depends on X86
1342	help
1343	  This is a driver for National Semiconductor PC87307/PC97307 hardware
1344	  watchdog cards as found on the SC1200. This watchdog is mainly used
1345	  for power management purposes and can be used to power down the device
1346	  during inactivity periods (includes interrupt activity monitoring).
1347
1348	  To compile this driver as a module, choose M here: the
1349	  module will be called sc1200wdt.
1350
1351	  Most people will say N.
1352
1353config SCx200_WDT
1354	tristate "National Semiconductor SCx200 Watchdog"
1355	depends on SCx200 && PCI
1356	help
1357	  Enable the built-in watchdog timer support on the National
1358	  Semiconductor SCx200 processors.
1359
1360	  If compiled as a module, it will be called scx200_wdt.
1361
1362config PC87413_WDT
1363	tristate "NS PC87413 watchdog"
1364	depends on X86
1365	help
1366	  This is the driver for the hardware watchdog on the PC87413 chipset
1367	  This watchdog simply watches your kernel to make sure it doesn't
1368	  freeze, and if it does, it reboots your computer after a certain
1369	  amount of time.
1370
1371	  To compile this driver as a module, choose M here: the
1372	  module will be called pc87413_wdt.
1373
1374	  Most people will say N.
1375
1376config NV_TCO
1377	tristate "nVidia TCO Timer/Watchdog"
1378	depends on X86 && PCI
1379	help
1380	  Hardware driver for the TCO timer built into the nVidia Hub family
1381	  (such as the MCP51).  The TCO (Total Cost of Ownership) timer is a
1382	  watchdog timer that will reboot the machine after its second
1383	  expiration. The expiration time can be configured with the
1384	  "heartbeat" parameter.
1385
1386	  On some motherboards the driver may fail to reset the chipset's
1387	  NO_REBOOT flag which prevents the watchdog from rebooting the
1388	  machine. If this is the case you will get a kernel message like
1389	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1390
1391	  To compile this driver as a module, choose M here: the
1392	  module will be called nv_tco.
1393
1394config RDC321X_WDT
1395	tristate "RDC R-321x SoC watchdog"
1396	depends on X86_RDC321X || COMPILE_TEST
1397	depends on PCI
1398	help
1399	  This is the driver for the built in hardware watchdog
1400	  in the RDC R-321x SoC.
1401
1402	  To compile this driver as a module, choose M here: the
1403	  module will be called rdc321x_wdt.
1404
1405config 60XX_WDT
1406	tristate "SBC-60XX Watchdog Timer"
1407	depends on X86
1408	help
1409	  This driver can be used with the watchdog timer found on some
1410	  single board computers, namely the 6010 PII based computer.
1411	  It may well work with other cards.  It reads port 0x443 to enable
1412	  and re-set the watchdog timer, and reads port 0x45 to disable
1413	  the watchdog.  If you have a card that behave in similar ways,
1414	  you can probably make this driver work with your card as well.
1415
1416	  You can compile this driver directly into the kernel, or use
1417	  it as a module.  The module will be called sbc60xxwdt.
1418
1419config SBC8360_WDT
1420	tristate "SBC8360 Watchdog Timer"
1421	depends on X86_32
1422	help
1423
1424	  This is the driver for the hardware watchdog on the SBC8360 Single
1425	  Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1426
1427	  To compile this driver as a module, choose M here: the
1428	  module will be called sbc8360.
1429
1430	  Most people will say N.
1431
1432config SBC7240_WDT
1433	tristate "SBC Nano 7240 Watchdog Timer"
1434	depends on X86_32 && !UML
1435	help
1436	  This is the driver for the hardware watchdog found on the IEI
1437	  single board computers EPIC Nano 7240 (and likely others). This
1438	  watchdog simply watches your kernel to make sure it doesn't freeze,
1439	  and if it does, it reboots your computer after a certain amount of
1440	  time.
1441
1442	  To compile this driver as a module, choose M here: the
1443	  module will be called sbc7240_wdt.
1444
1445config CPU5_WDT
1446	tristate "SMA CPU5 Watchdog"
1447	depends on X86
1448	help
1449	  TBD.
1450	  To compile this driver as a module, choose M here: the
1451	  module will be called cpu5wdt.
1452
1453config SMSC_SCH311X_WDT
1454	tristate "SMSC SCH311X Watchdog Timer"
1455	depends on X86
1456	help
1457	  This is the driver for the hardware watchdog timer on the
1458	  SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1459	  (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1460	  serial ports).
1461
1462	  To compile this driver as a module, choose M here: the
1463	  module will be called sch311x_wdt.
1464
1465config SMSC37B787_WDT
1466	tristate "Winbond SMsC37B787 Watchdog Timer"
1467	depends on X86
1468	help
1469	  This is the driver for the hardware watchdog component on the
1470	  Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1471	  from Vision Systems and maybe others.
1472
1473	  This watchdog simply watches your kernel to make sure it doesn't
1474	  freeze, and if it does, it reboots your computer after a certain
1475	  amount of time.
1476
1477	  Usually a userspace daemon will notify the kernel WDT driver that
1478	  userspace is still alive, at regular intervals.
1479
1480	  To compile this driver as a module, choose M here: the
1481	  module will be called smsc37b787_wdt.
1482
1483	  Most people will say N.
1484
1485config TQMX86_WDT
1486	tristate "TQ-Systems TQMX86 Watchdog Timer"
1487	depends on X86
1488	select WATCHDOG_CORE
1489	help
1490	This is the driver for the hardware watchdog timer in the TQMX86 IO
1491	controller found on some of their ComExpress Modules.
1492
1493	To compile this driver as a module, choose M here; the module
1494	will be called tqmx86_wdt.
1495
1496	Most people will say N.
1497
1498config VIA_WDT
1499	tristate "VIA Watchdog Timer"
1500	depends on X86 && PCI
1501	select WATCHDOG_CORE
1502	help
1503	This is the driver for the hardware watchdog timer on VIA
1504	southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1505
1506	To compile this driver as a module, choose M here; the module
1507	will be called via_wdt.
1508
1509	Most people will say N.
1510
1511config W83627HF_WDT
1512	tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1513	depends on X86
1514	select WATCHDOG_CORE
1515	help
1516	  This is the driver for the hardware watchdog on the following
1517	  Super I/O chips.
1518		W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1519		W83637HF
1520		W83667HG/HG-B
1521		W83687THF
1522		W83697HF
1523		W83697UG
1524		NCT6775
1525		NCT6776
1526		NCT6779
1527		NCT6791
1528		NCT6792
1529		NCT6102D/04D/06D
1530		NCT6116D
1531
1532	  This watchdog simply watches your kernel to make sure it doesn't
1533	  freeze, and if it does, it reboots your computer after a certain
1534	  amount of time.
1535
1536	  To compile this driver as a module, choose M here: the
1537	  module will be called w83627hf_wdt.
1538
1539	  Most people will say N.
1540
1541config W83877F_WDT
1542	tristate "W83877F (EMACS) Watchdog Timer"
1543	depends on X86
1544	help
1545	  This is the driver for the hardware watchdog on the W83877F chipset
1546	  as used in EMACS PC-104 motherboards (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 w83877f_wdt.
1553
1554	  Most people will say N.
1555
1556config W83977F_WDT
1557	tristate "W83977F (PCM-5335) Watchdog Timer"
1558	depends on X86
1559	help
1560	  This is the driver for the hardware watchdog on the W83977F I/O chip
1561	  as used in AAEON's PCM-5335 SBC (and likely others).  This
1562	  watchdog simply watches your kernel to make sure it doesn't freeze,
1563	  and if it does, it reboots your computer after a certain amount of
1564	  time.
1565
1566	  To compile this driver as a module, choose M here: the
1567	  module will be called w83977f_wdt.
1568
1569config MACHZ_WDT
1570	tristate "ZF MachZ Watchdog"
1571	depends on X86
1572	help
1573	  If you are using a ZF Micro MachZ processor, say Y here, otherwise
1574	  N.  This is the driver for the watchdog timer built-in on that
1575	  processor using ZF-Logic interface.  This watchdog simply watches
1576	  your kernel to make sure it doesn't freeze, and if it does, it
1577	  reboots your computer after a certain amount of time.
1578
1579	  To compile this driver as a module, choose M here: the
1580	  module will be called machzwd.
1581
1582config SBC_EPX_C3_WATCHDOG
1583	tristate "Winsystems SBC EPX-C3 watchdog"
1584	depends on X86
1585	help
1586	  This is the driver for the built-in watchdog timer on the EPX-C3
1587	  Single-board computer made by Winsystems, Inc.
1588
1589	  *Note*: This hardware watchdog is not probeable and thus there
1590	  is no way to know if writing to its IO address will corrupt
1591	  your system or have any real effect.  The only way to be sure
1592	  that this driver does what you want is to make sure you
1593	  are running it on an EPX-C3 from Winsystems with the watchdog
1594	  timer at IO address 0x1ee and 0x1ef.  It will write to both those
1595	  IO ports.  Basically, the assumption is made that if you compile
1596	  this driver into your kernel and/or load it as a module, that you
1597	  know what you are doing and that you are in fact running on an
1598	  EPX-C3 board!
1599
1600	  To compile this driver as a module, choose M here: the
1601	  module will be called sbc_epx_c3.
1602
1603config INTEL_MEI_WDT
1604	tristate "Intel MEI iAMT Watchdog"
1605	depends on INTEL_MEI && X86
1606	select WATCHDOG_CORE
1607	help
1608	  A device driver for the Intel MEI iAMT watchdog.
1609
1610	  The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1611	  Whenever the OS hangs or crashes, iAMT will send an event
1612	  to any subscriber to this event. The watchdog doesn't reset the
1613	  the platform.
1614
1615	  To compile this driver as a module, choose M here:
1616	  the module will be called mei_wdt.
1617
1618config NI903X_WDT
1619	tristate "NI 903x/913x Watchdog"
1620	depends on X86 && ACPI
1621	select WATCHDOG_CORE
1622	help
1623	  This is the driver for the watchdog timer on the National Instruments
1624	  903x/913x real-time controllers.
1625
1626	  To compile this driver as a module, choose M here: the module will be
1627	  called ni903x_wdt.
1628
1629config NIC7018_WDT
1630	tristate "NIC7018 Watchdog"
1631	depends on X86 && ACPI
1632	select WATCHDOG_CORE
1633	help
1634	  Support for National Instruments NIC7018 Watchdog.
1635
1636	  To compile this driver as a module, choose M here: the module will be
1637	  called nic7018_wdt.
1638
1639# M68K Architecture
1640
1641config M54xx_WATCHDOG
1642	tristate "MCF54xx watchdog support"
1643	depends on M548x
1644	help
1645	  To compile this driver as a module, choose M here: the
1646	  module will be called m54xx_wdt.
1647
1648# MicroBlaze Architecture
1649
1650# MIPS Architecture
1651
1652config ATH79_WDT
1653	tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1654	depends on ATH79 || (ARM && COMPILE_TEST)
1655	help
1656	  Hardware driver for the built-in watchdog timer on the Atheros
1657	  AR71XX/AR724X/AR913X SoCs.
1658
1659config BCM47XX_WDT
1660	tristate "Broadcom BCM47xx Watchdog Timer"
1661	depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1662	select WATCHDOG_CORE
1663	help
1664	  Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1665
1666config RC32434_WDT
1667	tristate "IDT RC32434 SoC Watchdog Timer"
1668	depends on MIKROTIK_RB532
1669	help
1670	  Hardware driver for the IDT RC32434 SoC built-in
1671	  watchdog timer.
1672
1673	  To compile this driver as a module, choose M here: the
1674	  module will be called rc32434_wdt.
1675
1676config INDYDOG
1677	tristate "Indy/I2 Hardware Watchdog"
1678	depends on SGI_HAS_INDYDOG
1679	help
1680	  Hardware driver for the Indy's/I2's watchdog. This is a
1681	  watchdog timer that will reboot the machine after a 60 second
1682	  timer expired and no process has written to /dev/watchdog during
1683	  that time.
1684
1685config JZ4740_WDT
1686	tristate "Ingenic jz4740 SoC hardware watchdog"
1687	depends on MIPS
1688	depends on COMMON_CLK
1689	select WATCHDOG_CORE
1690	select MFD_SYSCON
1691	help
1692	  Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1693
1694config WDT_MTX1
1695	tristate "MTX-1 Hardware Watchdog"
1696	depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1697	help
1698	  Hardware driver for the MTX-1 boards. This is a watchdog timer that
1699	  will reboot the machine after a 100 seconds timer expired.
1700
1701config PNX833X_WDT
1702	tristate "PNX833x Hardware Watchdog"
1703	depends on SOC_PNX8335
1704	depends on BROKEN
1705	help
1706	  Hardware driver for the PNX833x's watchdog. This is a
1707	  watchdog timer that will reboot the machine after a programmable
1708	  timer has expired and no process has written to /dev/watchdog during
1709	  that time.
1710
1711config SIBYTE_WDOG
1712	tristate "Sibyte SoC hardware watchdog"
1713	depends on CPU_SB1 || (MIPS && COMPILE_TEST)
1714	help
1715	  Watchdog driver for the built in watchdog hardware in Sibyte
1716	  SoC processors.  There are apparently two watchdog timers
1717	  on such processors; this driver supports only the first one,
1718	  because currently Linux only supports exporting one watchdog
1719	  to userspace.
1720
1721	  To compile this driver as a loadable module, choose M here.
1722	  The module will be called sb_wdog.
1723
1724config AR7_WDT
1725	tristate "TI AR7 Watchdog Timer"
1726	depends on AR7 || (MIPS && 32BIT && COMPILE_TEST)
1727	help
1728	  Hardware driver for the TI AR7 Watchdog Timer.
1729
1730config TXX9_WDT
1731	tristate "Toshiba TXx9 Watchdog Timer"
1732	depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
1733	select WATCHDOG_CORE
1734	help
1735	  Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1736
1737config OCTEON_WDT
1738	tristate "Cavium OCTEON SOC family Watchdog Timer"
1739	depends on CAVIUM_OCTEON_SOC
1740	default y
1741	select WATCHDOG_CORE
1742	select EXPORT_UASM if OCTEON_WDT = m
1743	help
1744	  Hardware driver for OCTEON's on chip watchdog timer.
1745	  Enables the watchdog for all cores running Linux. It
1746	  installs a NMI handler and pokes the watchdog based on an
1747	  interrupt.  On first expiration of the watchdog, the
1748	  interrupt handler pokes it.  The second expiration causes an
1749	  NMI that prints a message. The third expiration causes a
1750	  global soft reset.
1751
1752	  When userspace has /dev/watchdog open, no poking is done
1753	  from the first interrupt, it is then only poked when the
1754	  device is written.
1755
1756config BCM63XX_WDT
1757	tristate "Broadcom BCM63xx hardware watchdog"
1758	depends on BCM63XX
1759	help
1760	  Watchdog driver for the built in watchdog hardware in Broadcom
1761	  BCM63xx SoC.
1762
1763	  To compile this driver as a loadable module, choose M here.
1764	  The module will be called bcm63xx_wdt.
1765
1766config BCM2835_WDT
1767	tristate "Broadcom BCM2835 hardware watchdog"
1768	depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1769	select WATCHDOG_CORE
1770	help
1771	  Watchdog driver for the built in watchdog hardware in Broadcom
1772	  BCM2835 SoC.
1773
1774	  To compile this driver as a loadable module, choose M here.
1775	  The module will be called bcm2835_wdt.
1776
1777config BCM_KONA_WDT
1778	tristate "BCM Kona Watchdog"
1779	depends on ARCH_BCM_MOBILE || COMPILE_TEST
1780	select WATCHDOG_CORE
1781	help
1782	  Support for the watchdog timer on the following Broadcom BCM281xx
1783	  family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1784	  BCM28155 variants.
1785
1786	  Say 'Y' or 'M' here to enable the driver. The module will be called
1787	  bcm_kona_wdt.
1788
1789config BCM_KONA_WDT_DEBUG
1790	bool "DEBUGFS support for BCM Kona Watchdog"
1791	depends on BCM_KONA_WDT
1792	help
1793	  If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1794	  access to the driver's internal data structures as well as watchdog
1795	  timer hardware registres.
1796
1797	  If in doubt, say 'N'.
1798
1799config BCM7038_WDT
1800	tristate "BCM7038 Watchdog"
1801	select WATCHDOG_CORE
1802	depends on HAS_IOMEM
1803	depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1804	help
1805	 Watchdog driver for the built-in hardware in Broadcom 7038 and
1806	 later SoCs used in set-top boxes.  BCM7038 was made public
1807	 during the 2004 CES, and since then, many Broadcom chips use this
1808	 watchdog block, including some cable modem chips.
1809
1810config IMGPDC_WDT
1811	tristate "Imagination Technologies PDC Watchdog Timer"
1812	depends on HAS_IOMEM
1813	depends on MIPS || COMPILE_TEST
1814	select WATCHDOG_CORE
1815	help
1816	  Driver for Imagination Technologies PowerDown Controller
1817	  Watchdog Timer.
1818
1819	  To compile this driver as a loadable module, choose M here.
1820	  The module will be called imgpdc_wdt.
1821
1822config LANTIQ_WDT
1823	tristate "Lantiq SoC watchdog"
1824	depends on LANTIQ
1825	select WATCHDOG_CORE
1826	help
1827	  Hardware driver for the Lantiq SoC Watchdog Timer.
1828
1829config LOONGSON1_WDT
1830	tristate "Loongson1 SoC hardware watchdog"
1831	depends on MACH_LOONGSON32
1832	select WATCHDOG_CORE
1833	help
1834	  Hardware driver for the Loongson1 SoC Watchdog Timer.
1835
1836config RALINK_WDT
1837	tristate "Ralink SoC watchdog"
1838	select WATCHDOG_CORE
1839	depends on RALINK
1840	help
1841	  Hardware driver for the Ralink SoC Watchdog Timer.
1842
1843config MT7621_WDT
1844	tristate "Mediatek SoC watchdog"
1845	select WATCHDOG_CORE
1846	depends on SOC_MT7620 || SOC_MT7621
1847	help
1848	  Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1849
1850config PIC32_WDT
1851	tristate "Microchip PIC32 hardware watchdog"
1852	select WATCHDOG_CORE
1853	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1854	help
1855	  Watchdog driver for the built in watchdog hardware in a PIC32.
1856
1857	  Configuration bits must be set appropriately for the watchdog to be
1858	  controlled by this driver.
1859
1860	  To compile this driver as a loadable module, choose M here.
1861	  The module will be called pic32-wdt.
1862
1863config PIC32_DMT
1864	tristate "Microchip PIC32 Deadman Timer"
1865	select WATCHDOG_CORE
1866	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1867	help
1868	  Watchdog driver for PIC32 instruction fetch counting timer. This specific
1869	  timer is typically be used in misson critical and safety critical
1870	  applications, where any single failure of the software functionality
1871	  and sequencing must be detected.
1872
1873	  To compile this driver as a loadable module, choose M here.
1874	  The module will be called pic32-dmt.
1875
1876# PARISC Architecture
1877
1878# POWERPC Architecture
1879
1880config GEF_WDT
1881	tristate "GE Watchdog Timer"
1882	depends on GE_FPGA
1883	help
1884	  Watchdog timer found in a number of GE single board computers.
1885
1886config MPC5200_WDT
1887	bool "MPC52xx Watchdog Timer"
1888	depends on PPC_MPC52xx || COMPILE_TEST
1889	help
1890	  Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1891
1892config 8xxx_WDT
1893	tristate "MPC8xxx Platform Watchdog Timer"
1894	depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1895	select WATCHDOG_CORE
1896	help
1897	  This driver is for a SoC level watchdog that exists on some
1898	  Freescale PowerPC processors. So far this driver supports:
1899	  - MPC8xx watchdogs
1900	  - MPC83xx watchdogs
1901	  - MPC86xx watchdogs
1902
1903	  For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1904
1905config MV64X60_WDT
1906	tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1907	depends on MV64X60 || COMPILE_TEST
1908
1909config PIKA_WDT
1910	tristate "PIKA FPGA Watchdog"
1911	depends on WARP || (PPC64 && COMPILE_TEST)
1912	default y
1913	help
1914	  This enables the watchdog in the PIKA FPGA. Currently used on
1915	  the Warp platform.
1916
1917config BOOKE_WDT
1918	tristate "PowerPC Book-E Watchdog Timer"
1919	depends on BOOKE || 4xx
1920	select WATCHDOG_CORE
1921	help
1922	  Watchdog driver for PowerPC Book-E chips, such as the Freescale
1923	  MPC85xx SOCs and the IBM PowerPC 440.
1924
1925	  Please see Documentation/watchdog/watchdog-api.rst for
1926	  more information.
1927
1928config BOOKE_WDT_DEFAULT_TIMEOUT
1929	int "PowerPC Book-E Watchdog Timer Default Timeout"
1930	depends on BOOKE_WDT
1931	default 38 if PPC_FSL_BOOK3E
1932	range 0 63 if PPC_FSL_BOOK3E
1933	default 3 if !PPC_FSL_BOOK3E
1934	range 0 3 if !PPC_FSL_BOOK3E
1935	help
1936	  Select the default watchdog timer period to be used by the PowerPC
1937	  Book-E watchdog driver.  A watchdog "event" occurs when the bit
1938	  position represented by this number transitions from zero to one.
1939
1940	  For Freescale Book-E processors, this is a number between 0 and 63.
1941	  For other Book-E processors, this is a number between 0 and 3.
1942
1943	  The value can be overridden by the wdt_period command-line parameter.
1944
1945config MEN_A21_WDT
1946	tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1947	select WATCHDOG_CORE
1948	depends on GPIOLIB || COMPILE_TEST
1949	help
1950	  Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1951
1952	  The driver can also be built as a module. If so, the module will be
1953	  called mena21_wdt.
1954
1955	  If unsure select N here.
1956
1957# PPC64 Architecture
1958
1959config WATCHDOG_RTAS
1960	tristate "RTAS watchdog"
1961	depends on PPC_RTAS
1962	help
1963	  This driver adds watchdog support for the RTAS watchdog.
1964
1965	  To compile this driver as a module, choose M here. The module
1966	  will be called wdrtas.
1967
1968# S390 Architecture
1969
1970config DIAG288_WATCHDOG
1971	tristate "System z diag288 Watchdog"
1972	depends on S390
1973	select WATCHDOG_CORE
1974	help
1975	  IBM s/390 and zSeries machines running under z/VM 5.1 or later
1976	  provide a virtual watchdog timer to their guest that cause a
1977	  user define Control Program command to be executed after a
1978	  timeout.
1979	  LPAR provides a very similar interface. This driver handles
1980	  both.
1981
1982	  To compile this driver as a module, choose M here. The module
1983	  will be called diag288_wdt.
1984
1985# SUPERH (sh + sh64) Architecture
1986
1987config SH_WDT
1988	tristate "SuperH Watchdog"
1989	depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1990	select WATCHDOG_CORE
1991	help
1992	  This driver adds watchdog support for the integrated watchdog in the
1993	  SuperH processors. If you have one of these processors and wish
1994	  to have watchdog support enabled, say Y, otherwise say N.
1995
1996	  As a side note, saying Y here will automatically boost HZ to 1000
1997	  so that the timer has a chance to clear the overflow counter. On
1998	  slower systems (such as the SH-2 and SH-3) this will likely yield
1999	  some performance issues. As such, the WDT should be avoided here
2000	  unless it is absolutely necessary.
2001
2002	  To compile this driver as a module, choose M here: the
2003	  module will be called shwdt.
2004
2005# SPARC Architecture
2006
2007# SPARC64 Architecture
2008
2009config WATCHDOG_CP1XXX
2010	tristate "CP1XXX Hardware Watchdog support"
2011	depends on SPARC64 && PCI
2012	help
2013	  This is the driver for the hardware watchdog timers present on
2014	  Sun Microsystems CompactPCI models CP1400 and CP1500.
2015
2016	  To compile this driver as a module, choose M here: the
2017	  module will be called cpwatchdog.
2018
2019	  If you do not have a CompactPCI model CP1400 or CP1500, or
2020	  another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
2021	  you should say N to this option.
2022
2023config WATCHDOG_RIO
2024	tristate "RIO Hardware Watchdog support"
2025	depends on SPARC64 && PCI
2026	help
2027	  Say Y here to support the hardware watchdog capability on Sun RIO
2028	  machines.  The watchdog timeout period is normally one minute but
2029	  can be changed with a boot-time parameter.
2030
2031config WATCHDOG_SUN4V
2032	tristate "Sun4v Watchdog support"
2033	select WATCHDOG_CORE
2034	depends on SPARC64
2035	help
2036	  Say Y here to support the hypervisor watchdog capability embedded
2037	  in the SPARC sun4v architecture.
2038
2039	  To compile this driver as a module, choose M here. The module will
2040	  be called sun4v_wdt.
2041
2042# XTENSA Architecture
2043
2044# Xen Architecture
2045
2046config XEN_WDT
2047	tristate "Xen Watchdog support"
2048	depends on XEN
2049	select WATCHDOG_CORE
2050	help
2051	  Say Y here to support the hypervisor watchdog capability provided
2052	  by Xen 4.0 and newer.  The watchdog timeout period is normally one
2053	  minute but can be changed with a boot-time parameter.
2054
2055config UML_WATCHDOG
2056	tristate "UML watchdog"
2057	depends on UML || COMPILE_TEST
2058
2059#
2060# ISA-based Watchdog Cards
2061#
2062
2063comment "ISA-based Watchdog Cards"
2064	depends on ISA
2065
2066config PCWATCHDOG
2067	tristate "Berkshire Products ISA-PC Watchdog"
2068	depends on ISA
2069	help
2070	  This is the driver for the Berkshire Products ISA-PC Watchdog card.
2071	  This card simply watches your kernel to make sure it doesn't freeze,
2072	  and if it does, it reboots your computer after a certain amount of
2073	  time. This driver is like the WDT501 driver but for different
2074	  hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. The PC
2075	  watchdog cards can be ordered from <http://www.berkprod.com/>.
2076
2077	  To compile this driver as a module, choose M here: the
2078	  module will be called pcwd.
2079
2080	  Most people will say N.
2081
2082config MIXCOMWD
2083	tristate "Mixcom Watchdog"
2084	depends on ISA
2085	help
2086	  This is a driver for the Mixcom hardware watchdog cards.  This
2087	  watchdog simply watches your kernel to make sure it doesn't freeze,
2088	  and if it does, it reboots your computer after a certain amount of
2089	  time.
2090
2091	  To compile this driver as a module, choose M here: the
2092	  module will be called mixcomwd.
2093
2094	  Most people will say N.
2095
2096config WDT
2097	tristate "WDT Watchdog timer"
2098	depends on ISA
2099	help
2100	  If you have a WDT500P or WDT501P watchdog board, say Y here,
2101	  otherwise N. It is not possible to probe for this board, which means
2102	  that you have to inform the kernel about the IO port and IRQ that
2103	  is needed (you can do this via the io and irq parameters)
2104
2105	  To compile this driver as a module, choose M here: the
2106	  module will be called wdt.
2107
2108#
2109# PCI-based Watchdog Cards
2110#
2111
2112comment "PCI-based Watchdog Cards"
2113	depends on PCI
2114
2115config PCIPCWATCHDOG
2116	tristate "Berkshire Products PCI-PC Watchdog"
2117	depends on PCI
2118	help
2119	  This is the driver for the Berkshire Products PCI-PC Watchdog card.
2120	  This card simply watches your kernel to make sure it doesn't freeze,
2121	  and if it does, it reboots your computer after a certain amount of
2122	  time. The card can also monitor the internal temperature of the PC.
2123	  More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2124
2125	  To compile this driver as a module, choose M here: the
2126	  module will be called pcwd_pci.
2127
2128	  Most people will say N.
2129
2130config WDTPCI
2131	tristate "PCI-WDT500/501 Watchdog timer"
2132	depends on PCI
2133	help
2134	  If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2135
2136	  If you have a PCI-WDT501 watchdog board then you can enable the
2137	  temperature sensor by setting the type parameter to 501.
2138
2139	  If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2140	  can do this via the tachometer parameter. Only do this if you have a
2141	  fan tachometer actually set up.
2142
2143	  To compile this driver as a module, choose M here: the
2144	  module will be called wdt_pci.
2145
2146#
2147# USB-based Watchdog Cards
2148#
2149
2150comment "USB-based Watchdog Cards"
2151	depends on USB
2152
2153config USBPCWATCHDOG
2154	tristate "Berkshire Products USB-PC Watchdog"
2155	depends on USB
2156	help
2157	  This is the driver for the Berkshire Products USB-PC Watchdog card.
2158	  This card simply watches your kernel to make sure it doesn't freeze,
2159	  and if it does, it reboots your computer after a certain amount of
2160	  time. The card can also monitor the internal temperature of the PC.
2161	  More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2162
2163	  To compile this driver as a module, choose M here: the
2164	  module will be called pcwd_usb.
2165
2166	  Most people will say N.
2167
2168endif # WATCHDOG
2169