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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 <https://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon
26 can also monitor NFS connections and can reboot the machine when the
27 process 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
76config WATCHDOG_HRTIMER_PRETIMEOUT
77 bool "Enable watchdog hrtimer-based pretimeouts"
78 help
79 Enable this if you want to use a hrtimer timer based pretimeout for
80 watchdogs that do not natively support pretimeout support. Be aware
81 that because this pretimeout functionality uses hrtimers, it may not
82 be able to fire before the actual watchdog fires in some situations.
83
84comment "Watchdog Pretimeout Governors"
85
86config WATCHDOG_PRETIMEOUT_GOV
87 bool "Enable watchdog pretimeout governors"
88 depends on WATCHDOG_CORE
89 help
90 The option allows to select watchdog pretimeout governors.
91
92config WATCHDOG_PRETIMEOUT_GOV_SEL
93 tristate
94 depends on WATCHDOG_PRETIMEOUT_GOV
95 default m
96 select WATCHDOG_PRETIMEOUT_GOV_PANIC if WATCHDOG_PRETIMEOUT_GOV_NOOP=n
97
98if WATCHDOG_PRETIMEOUT_GOV
99
100config WATCHDOG_PRETIMEOUT_GOV_NOOP
101 tristate "Noop watchdog pretimeout governor"
102 depends on WATCHDOG_CORE
103 default WATCHDOG_CORE
104 help
105 Noop watchdog pretimeout governor, only an informational
106 message is added to kernel log buffer.
107
108config WATCHDOG_PRETIMEOUT_GOV_PANIC
109 tristate "Panic watchdog pretimeout governor"
110 depends on WATCHDOG_CORE
111 default WATCHDOG_CORE
112 help
113 Panic watchdog pretimeout governor, on watchdog pretimeout
114 event put the kernel into panic.
115
116choice
117 prompt "Default Watchdog Pretimeout Governor"
118 default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
119 help
120 This option selects a default watchdog pretimeout governor.
121 The governor takes its action, if a watchdog is capable
122 to report a pretimeout event.
123
124config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP
125 bool "noop"
126 depends on WATCHDOG_PRETIMEOUT_GOV_NOOP
127 help
128 Use noop watchdog pretimeout governor by default. If noop
129 governor is selected by a user, write a short message to
130 the kernel log buffer and don't do any system changes.
131
132config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
133 bool "panic"
134 depends on WATCHDOG_PRETIMEOUT_GOV_PANIC
135 help
136 Use panic watchdog pretimeout governor by default, if
137 a watchdog pretimeout event happens, consider that
138 a watchdog feeder is dead and reboot is unavoidable.
139
140endchoice
141
142endif # WATCHDOG_PRETIMEOUT_GOV
143
144#
145# General Watchdog drivers
146#
147
148comment "Watchdog Device Drivers"
149
150# Architecture Independent
151
152config SOFT_WATCHDOG
153 tristate "Software watchdog"
154 select WATCHDOG_CORE
155 help
156 A software monitoring watchdog. This will fail to reboot your system
157 from some situations that the hardware watchdog will recover
158 from. Equally it's a lot cheaper to install.
159
160 To compile this driver as a module, choose M here: the
161 module will be called softdog.
162
163config SOFT_WATCHDOG_PRETIMEOUT
164 bool "Software watchdog pretimeout governor support"
165 depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV
166 help
167 Enable this if you want to use pretimeout governors with the software
168 watchdog. Be aware that governors might affect the watchdog because it
169 is purely software, e.g. the panic governor will stall it!
170
171config BD70528_WATCHDOG
172 tristate "ROHM BD70528 PMIC Watchdog"
173 depends on MFD_ROHM_BD70528
174 select WATCHDOG_CORE
175 help
176 Support for the watchdog in the ROHM BD70528 PMIC. Watchdog trigger
177 cause system reset.
178
179 Say Y here to include support for the ROHM BD70528 watchdog.
180 Alternatively say M to compile the driver as a module,
181 which will be called bd70528_wdt.
182
183config BD957XMUF_WATCHDOG
184 tristate "ROHM BD9576MUF and BD9573MUF PMIC Watchdog"
185 depends on MFD_ROHM_BD957XMUF
186 select WATCHDOG_CORE
187 help
188 Support for the watchdog in the ROHM BD9576 and BD9573 PMICs.
189 These PMIC ICs contain watchdog block which can be configured
190 to toggle reset line if SoC fails to ping watchdog via GPIO.
191
192 Say Y here to include support for the ROHM BD9576 or BD9573
193 watchdog. Alternatively say M to compile the driver as a module,
194 which will be called bd9576_wdt.
195
196config DA9052_WATCHDOG
197 tristate "Dialog DA9052 Watchdog"
198 depends on PMIC_DA9052 || COMPILE_TEST
199 select WATCHDOG_CORE
200 help
201 Support for the watchdog in the DA9052 PMIC. Watchdog trigger
202 cause system reset.
203
204 Say Y here to include support for the DA9052 watchdog.
205 Alternatively say M to compile the driver as a module,
206 which will be called da9052_wdt.
207
208config DA9055_WATCHDOG
209 tristate "Dialog Semiconductor DA9055 Watchdog"
210 depends on MFD_DA9055 || COMPILE_TEST
211 select WATCHDOG_CORE
212 help
213 If you say yes here you get support for watchdog on the Dialog
214 Semiconductor DA9055 PMIC.
215
216 This driver can also be built as a module. If so, the module
217 will be called da9055_wdt.
218
219config DA9063_WATCHDOG
220 tristate "Dialog DA9063 Watchdog"
221 depends on MFD_DA9063 || COMPILE_TEST
222 select WATCHDOG_CORE
223 help
224 Support for the watchdog in the DA9063 PMIC.
225
226 This driver can be built as a module. The module name is da9063_wdt.
227
228config DA9062_WATCHDOG
229 tristate "Dialog DA9062/61 Watchdog"
230 depends on MFD_DA9062 || COMPILE_TEST
231 depends on I2C
232 select WATCHDOG_CORE
233 help
234 Support for the watchdog in the DA9062 and DA9061 PMICs.
235
236 This driver can be built as a module. The module name is da9062_wdt.
237
238config GPIO_WATCHDOG
239 tristate "Watchdog device controlled through GPIO-line"
240 depends on OF_GPIO
241 select WATCHDOG_CORE
242 help
243 If you say yes here you get support for watchdog device
244 controlled through GPIO-line.
245
246config GPIO_WATCHDOG_ARCH_INITCALL
247 bool "Register the watchdog as early as possible"
248 depends on GPIO_WATCHDOG=y
249 help
250 In some situations, the default initcall level (module_init)
251 in not early enough in the boot process to avoid the watchdog
252 to be triggered.
253 If you say yes here, the initcall level would be raised to
254 arch_initcall.
255 If in doubt, say N.
256
257config MENF21BMC_WATCHDOG
258 tristate "MEN 14F021P00 BMC Watchdog"
259 depends on MFD_MENF21BMC || COMPILE_TEST
260 depends on I2C
261 select WATCHDOG_CORE
262 help
263 Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
264
265 This driver can also be built as a module. If so the module
266 will be called menf21bmc_wdt.
267
268config MENZ069_WATCHDOG
269 tristate "MEN 16Z069 Watchdog"
270 depends on MCB
271 select WATCHDOG_CORE
272 help
273 Say Y here to include support for the MEN 16Z069 Watchdog.
274
275 This driver can also be built as a module. If so the module
276 will be called menz069_wdt.
277
278config WDAT_WDT
279 tristate "ACPI Watchdog Action Table (WDAT)"
280 depends on ACPI
281 select WATCHDOG_CORE
282 select ACPI_WATCHDOG
283 help
284 This driver adds support for systems with ACPI Watchdog Action
285 Table (WDAT) table. Servers typically have this but it can be
286 found on some desktop machines as well. This driver will take
287 over the native iTCO watchdog driver found on many Intel CPUs.
288
289 To compile this driver as module, choose M here: the module will
290 be called wdat_wdt.
291
292config WM831X_WATCHDOG
293 tristate "WM831x watchdog"
294 depends on MFD_WM831X
295 select WATCHDOG_CORE
296 help
297 Support for the watchdog in the WM831x AudioPlus PMICs. When
298 the watchdog triggers the system will be reset.
299
300config WM8350_WATCHDOG
301 tristate "WM8350 watchdog"
302 depends on MFD_WM8350
303 select WATCHDOG_CORE
304 help
305 Support for the watchdog in the WM8350 AudioPlus PMIC. When
306 the watchdog triggers the system will be reset.
307
308config XILINX_WATCHDOG
309 tristate "Xilinx Watchdog timer"
310 depends on HAS_IOMEM
311 select WATCHDOG_CORE
312 help
313 Watchdog driver for the xps_timebase_wdt IP core.
314
315 To compile this driver as a module, choose M here: the
316 module will be called of_xilinx_wdt.
317
318config ZIIRAVE_WATCHDOG
319 tristate "Zodiac RAVE Watchdog Timer"
320 depends on I2C
321 select WATCHDOG_CORE
322 help
323 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
324 Processor.
325
326 To compile this driver as a module, choose M here: the
327 module will be called ziirave_wdt.
328
329config RAVE_SP_WATCHDOG
330 tristate "RAVE SP Watchdog timer"
331 depends on RAVE_SP_CORE
332 depends on NVMEM || !NVMEM
333 select WATCHDOG_CORE
334 help
335 Support for the watchdog on RAVE SP device.
336
337config MLX_WDT
338 tristate "Mellanox Watchdog"
339 depends on MELLANOX_PLATFORM
340 select WATCHDOG_CORE
341 select REGMAP
342 help
343 This is the driver for the hardware watchdog on Mellanox systems.
344 If you are going to use it, say Y here, otherwise N.
345 This driver can be used together with the watchdog daemon.
346 It can also watch your kernel to make sure it doesn't freeze,
347 and if it does, it reboots your system after a certain amount of
348 time.
349
350 To compile this driver as a module, choose M here: the
351 module will be called mlx-wdt.
352
353config SL28CPLD_WATCHDOG
354 tristate "Kontron sl28cpld Watchdog"
355 depends on MFD_SL28CPLD || COMPILE_TEST
356 select WATCHDOG_CORE
357 help
358 Say Y here to include support for the watchdog timer
359 on the Kontron sl28 CPLD.
360
361 To compile this driver as a module, choose M here: the
362 module will be called sl28cpld_wdt.
363
364# ALPHA Architecture
365
366# ARM Architecture
367
368config ARM_SP805_WATCHDOG
369 tristate "ARM SP805 Watchdog"
370 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
371 select WATCHDOG_CORE
372 help
373 ARM Primecell SP805 Watchdog timer. This will reboot your system when
374 the timeout is reached.
375
376config ARM_SBSA_WATCHDOG
377 tristate "ARM SBSA Generic Watchdog"
378 depends on ARM64
379 depends on ARM_ARCH_TIMER
380 select WATCHDOG_CORE
381 help
382 ARM SBSA Generic Watchdog has two stage timeouts:
383 the first signal (WS0) is for alerting the system by interrupt,
384 the second one (WS1) is a real hardware reset.
385 More details: ARM DEN0029B - Server Base System Architecture (SBSA)
386
387 This driver can operate ARM SBSA Generic Watchdog as a single stage
388 or a two stages watchdog, it depends on the module parameter "action".
389
390 Note: the maximum timeout in the two stages mode is half of that in
391 the single stage mode.
392
393 To compile this driver as module, choose M here: The module
394 will be called sbsa_gwdt.
395
396config ARMADA_37XX_WATCHDOG
397 tristate "Armada 37xx watchdog"
398 depends on ARCH_MVEBU || COMPILE_TEST
399 depends on HAS_IOMEM
400 select MFD_SYSCON
401 select WATCHDOG_CORE
402 help
403 Say Y here to include support for the watchdog timer found on
404 Marvell Armada 37xx SoCs.
405 To compile this driver as a module, choose M here: the
406 module will be called armada_37xx_wdt.
407
408config ASM9260_WATCHDOG
409 tristate "Alphascale ASM9260 watchdog"
410 depends on MACH_ASM9260 || COMPILE_TEST
411 depends on OF
412 select WATCHDOG_CORE
413 select RESET_CONTROLLER
414 help
415 Watchdog timer embedded into Alphascale asm9260 chips. This will
416 reboot your system when the timeout is reached.
417
418config AT91RM9200_WATCHDOG
419 tristate "AT91RM9200 watchdog"
420 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
421 help
422 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
423 system when the timeout is reached.
424
425config AT91SAM9X_WATCHDOG
426 tristate "AT91SAM9X / AT91CAP9 watchdog"
427 depends on ARCH_AT91 || COMPILE_TEST
428 select WATCHDOG_CORE
429 help
430 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
431 reboot your system when the timeout is reached.
432
433config SAMA5D4_WATCHDOG
434 tristate "Atmel SAMA5D4 Watchdog Timer"
435 depends on ARCH_AT91 || COMPILE_TEST
436 select WATCHDOG_CORE
437 help
438 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
439 Its Watchdog Timer Mode Register can be written more than once.
440 This will reboot your system when the timeout is reached.
441
442config CADENCE_WATCHDOG
443 tristate "Cadence Watchdog Timer"
444 depends on HAS_IOMEM
445 select WATCHDOG_CORE
446 help
447 Say Y here if you want to include support for the watchdog
448 timer in the Xilinx Zynq.
449
450config 21285_WATCHDOG
451 tristate "DC21285 watchdog"
452 depends on FOOTBRIDGE
453 help
454 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
455 here if you wish to use this. Alternatively say M to compile the
456 driver as a module, which will be called wdt285.
457
458 This driver does not work on all machines. In particular, early CATS
459 boards have hardware problems that will cause the machine to simply
460 lock up if the watchdog fires.
461
462 "If in doubt, leave it out" - say N.
463
464config 977_WATCHDOG
465 tristate "NetWinder WB83C977 watchdog"
466 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
467 help
468 Say Y here to include support for the WB977 watchdog included in
469 NetWinder machines. Alternatively say M to compile the driver as
470 a module, which will be called wdt977.
471
472 Not sure? It's safe to say N.
473
474config FTWDT010_WATCHDOG
475 tristate "Faraday Technology FTWDT010 watchdog"
476 depends on ARM || COMPILE_TEST
477 select WATCHDOG_CORE
478 default ARCH_GEMINI
479 help
480 Say Y here if to include support for the Faraday Technology
481 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
482 family of devices.
483
484 To compile this driver as a module, choose M here: the
485 module will be called ftwdt010_wdt.
486
487config IXP4XX_WATCHDOG
488 tristate "IXP4xx Watchdog"
489 depends on ARCH_IXP4XX
490 help
491 Say Y here if to include support for the watchdog timer
492 in the Intel IXP4xx network processors. This driver can
493 be built as a module by choosing M. The module will
494 be called ixp4xx_wdt.
495
496 Note: The internal IXP4xx watchdog does a soft CPU reset
497 which doesn't reset any peripherals. There are circumstances
498 where the watchdog will fail to reset the board correctly
499 (e.g., if the boot ROM is in an unreadable state).
500
501 Say N if you are unsure.
502
503config S3C2410_WATCHDOG
504 tristate "S3C2410 Watchdog"
505 depends on ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || \
506 COMPILE_TEST
507 select WATCHDOG_CORE
508 select MFD_SYSCON if ARCH_EXYNOS
509 help
510 Watchdog timer block in the Samsung SoCs. This will reboot
511 the system when the timer expires with the watchdog enabled.
512
513 The driver is limited by the speed of the system's PCLK
514 signal, so with reasonably fast systems (PCLK around 50-66MHz)
515 then watchdog intervals of over approximately 20seconds are
516 unavailable.
517
518 The driver can be built as a module by choosing M, and will
519 be called s3c2410_wdt
520
521config SA1100_WATCHDOG
522 tristate "SA1100/PXA2xx watchdog"
523 depends on ARCH_SA1100 || ARCH_PXA
524 help
525 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
526 reboot your system when timeout is reached.
527
528 NOTE: once enabled, this timer cannot be disabled.
529
530 To compile this driver as a module, choose M here: the
531 module will be called sa1100_wdt.
532
533config DW_WATCHDOG
534 tristate "Synopsys DesignWare watchdog"
535 depends on HAS_IOMEM
536 select WATCHDOG_CORE
537 help
538 Say Y here if to include support for the Synopsys DesignWare
539 watchdog timer found in many chips.
540 To compile this driver as a module, choose M here: the
541 module will be called dw_wdt.
542
543config EP93XX_WATCHDOG
544 tristate "EP93xx Watchdog"
545 depends on ARCH_EP93XX || COMPILE_TEST
546 select WATCHDOG_CORE
547 help
548 Say Y here if to include support for the watchdog timer
549 embedded in the Cirrus Logic EP93xx family of devices.
550
551 To compile this driver as a module, choose M here: the
552 module will be called ep93xx_wdt.
553
554config OMAP_WATCHDOG
555 tristate "OMAP Watchdog"
556 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
557 select WATCHDOG_CORE
558 help
559 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.
560 Say 'Y' here to enable the
561 OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
562
563config PNX4008_WATCHDOG
564 tristate "LPC32XX Watchdog"
565 depends on ARCH_LPC32XX || COMPILE_TEST
566 select WATCHDOG_CORE
567 help
568 Say Y here if to include support for the watchdog timer
569 in the LPC32XX processor.
570 This driver can be built as a module by choosing M. The module
571 will be called pnx4008_wdt.
572
573 Say N if you are unsure.
574
575config IOP_WATCHDOG
576 tristate "IOP Watchdog"
577 depends on ARCH_IOP13XX
578 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
579 help
580 Say Y here if to include support for the watchdog timer
581 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
582 be built as a module by choosing M. The module will
583 be called iop_wdt.
584
585 Note: The IOP13XX watchdog does an Internal Bus Reset which will
586 affect both cores and the peripherals of the IOP. The ATU-X
587 and/or ATUe configuration registers will remain intact, but if
588 operating as an Root Complex and/or Central Resource, the PCI-X
589 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
590
591config DAVINCI_WATCHDOG
592 tristate "DaVinci watchdog"
593 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
594 select WATCHDOG_CORE
595 help
596 Say Y here if to include support for the watchdog timer
597 in the DaVinci DM644x/DM646x or Keystone processors.
598 To compile this driver as a module, choose M here: the
599 module will be called davinci_wdt.
600
601 NOTE: once enabled, this timer cannot be disabled.
602 Say N if you are unsure.
603
604config K3_RTI_WATCHDOG
605 tristate "Texas Instruments K3 RTI watchdog"
606 depends on ARCH_K3 || COMPILE_TEST
607 select WATCHDOG_CORE
608 help
609 Say Y here if you want to include support for the K3 watchdog
610 timer (RTI module) available in the K3 generation of processors.
611
612config ORION_WATCHDOG
613 tristate "Orion watchdog"
614 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST
615 depends on ARM
616 select WATCHDOG_CORE
617 help
618 Say Y here if to include support for the watchdog timer
619 in the Marvell Orion5x and Kirkwood ARM SoCs.
620 To compile this driver as a module, choose M here: the
621 module will be called orion_wdt.
622
623config RN5T618_WATCHDOG
624 tristate "Ricoh RN5T618 watchdog"
625 depends on MFD_RN5T618 || COMPILE_TEST
626 select WATCHDOG_CORE
627 help
628 If you say yes here you get support for watchdog on the Ricoh
629 RN5T618 PMIC.
630
631 This driver can also be built as a module. If so, the module
632 will be called rn5t618_wdt.
633
634config SUNXI_WATCHDOG
635 tristate "Allwinner SoCs watchdog support"
636 depends on ARCH_SUNXI || COMPILE_TEST
637 select WATCHDOG_CORE
638 help
639 Say Y here to include support for the watchdog timer
640 in Allwinner SoCs.
641 To compile this driver as a module, choose M here: the
642 module will be called sunxi_wdt.
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 ST_LPC_WATCHDOG
792 tristate "STMicroelectronics LPC Watchdog"
793 depends on ARCH_STI || COMPILE_TEST
794 depends on OF
795 select WATCHDOG_CORE
796 help
797 Say Y here to include STMicroelectronics Low Power Controller
798 (LPC) based Watchdog timer support.
799
800 To compile this driver as a module, choose M here: the
801 module will be called st_lpc_wdt.
802
803config TEGRA_WATCHDOG
804 tristate "Tegra watchdog"
805 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
806 select WATCHDOG_CORE
807 help
808 Say Y here to include support for the watchdog timer
809 embedded in NVIDIA Tegra SoCs.
810
811 To compile this driver as a module, choose M here: the
812 module will be called tegra_wdt.
813
814config QCOM_WDT
815 tristate "QCOM watchdog"
816 depends on HAS_IOMEM
817 depends on ARCH_QCOM || COMPILE_TEST
818 select WATCHDOG_CORE
819 help
820 Say Y here to include Watchdog timer support for the watchdog found
821 on QCOM chipsets. Currently supported targets are the MSM8960,
822 APQ8064, and IPQ8064.
823
824 To compile this driver as a module, choose M here: the
825 module will be called qcom_wdt.
826
827config MESON_GXBB_WATCHDOG
828 tristate "Amlogic Meson GXBB SoCs watchdog support"
829 depends on ARCH_MESON || COMPILE_TEST
830 select WATCHDOG_CORE
831 help
832 Say Y here to include support for the watchdog timer
833 in Amlogic Meson GXBB SoCs.
834 To compile this driver as a module, choose M here: the
835 module will be called meson_gxbb_wdt.
836
837config MESON_WATCHDOG
838 tristate "Amlogic Meson 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 SoCs.
844 To compile this driver as a module, choose M here: the
845 module will be called meson_wdt.
846
847config MEDIATEK_WATCHDOG
848 tristate "Mediatek SoCs watchdog support"
849 depends on ARCH_MEDIATEK || COMPILE_TEST
850 select WATCHDOG_CORE
851 select RESET_CONTROLLER
852 help
853 Say Y here to include support for the watchdog timer
854 in Mediatek SoCs.
855 To compile this driver as a module, choose M here: the
856 module will be called mtk_wdt.
857
858config DIGICOLOR_WATCHDOG
859 tristate "Conexant Digicolor SoCs watchdog support"
860 depends on ARCH_DIGICOLOR || COMPILE_TEST
861 select WATCHDOG_CORE
862 help
863 Say Y here to include support for the watchdog timer
864 in Conexant Digicolor SoCs.
865 To compile this driver as a module, choose M here: the
866 module will be called digicolor_wdt.
867
868config ARM_SMC_WATCHDOG
869 tristate "ARM Secure Monitor Call based watchdog support"
870 depends on ARM || ARM64
871 depends on OF
872 depends on HAVE_ARM_SMCCC
873 select WATCHDOG_CORE
874 help
875 Say Y here to include support for a watchdog timer
876 implemented by the EL3 Secure Monitor on ARM platforms.
877 Requires firmware support.
878 To compile this driver as a module, choose M here: the
879 module will be called arm_smc_wdt.
880
881config LPC18XX_WATCHDOG
882 tristate "LPC18xx/43xx Watchdog"
883 depends on ARCH_LPC18XX || COMPILE_TEST
884 depends on HAS_IOMEM
885 select WATCHDOG_CORE
886 help
887 Say Y here if to include support for the watchdog timer
888 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
889 processors.
890 To compile this driver as a module, choose M here: the
891 module will be called lpc18xx_wdt.
892
893config RENESAS_WDT
894 tristate "Renesas WDT Watchdog"
895 depends on ARCH_RENESAS || COMPILE_TEST
896 select WATCHDOG_CORE
897 help
898 This driver adds watchdog support for the integrated watchdogs in the
899 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
900
901config RENESAS_RZAWDT
902 tristate "Renesas RZ/A WDT Watchdog"
903 depends on ARCH_RENESAS || COMPILE_TEST
904 select WATCHDOG_CORE
905 help
906 This driver adds watchdog support for the integrated watchdogs in the
907 Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
908
909config ASPEED_WATCHDOG
910 tristate "Aspeed BMC watchdog support"
911 depends on ARCH_ASPEED || COMPILE_TEST
912 select WATCHDOG_CORE
913 help
914 Say Y here to include support for the watchdog timer
915 in Aspeed BMC SoCs.
916
917 This driver is required to reboot the SoC.
918
919 To compile this driver as a module, choose M here: the
920 module will be called aspeed_wdt.
921
922config STM32_WATCHDOG
923 tristate "STM32 Independent WatchDoG (IWDG) support"
924 depends on ARCH_STM32
925 select WATCHDOG_CORE
926 default y
927 help
928 Say Y here to include support for the watchdog timer
929 in stm32 SoCs.
930
931 To compile this driver as a module, choose M here: the
932 module will be called stm32_iwdg.
933
934config STPMIC1_WATCHDOG
935 tristate "STPMIC1 PMIC watchdog support"
936 depends on MFD_STPMIC1
937 select WATCHDOG_CORE
938 help
939 Say Y here to include watchdog support embedded into STPMIC1 PMIC.
940 If the watchdog timer expires, stpmic1 will shut down all its power
941 supplies.
942
943 To compile this driver as a module, choose M here: the
944 module will be called spmic1_wdt.
945
946config UNIPHIER_WATCHDOG
947 tristate "UniPhier watchdog support"
948 depends on ARCH_UNIPHIER || COMPILE_TEST
949 depends on OF && MFD_SYSCON
950 select WATCHDOG_CORE
951 help
952 Say Y here to include support watchdog timer embedded
953 into the UniPhier system.
954
955 To compile this driver as a module, choose M here: the
956 module will be called uniphier_wdt.
957
958config RTD119X_WATCHDOG
959 bool "Realtek RTD119x/RTD129x watchdog support"
960 depends on ARCH_REALTEK || COMPILE_TEST
961 depends on OF
962 select WATCHDOG_CORE
963 default ARCH_REALTEK
964 help
965 Say Y here to include support for the watchdog timer in
966 Realtek RTD1295 SoCs.
967
968config SPRD_WATCHDOG
969 tristate "Spreadtrum watchdog support"
970 depends on ARCH_SPRD || COMPILE_TEST
971 select WATCHDOG_CORE
972 help
973 Say Y here to include watchdog timer supported
974 by Spreadtrum system.
975
976config PM8916_WATCHDOG
977 tristate "QCOM PM8916 pmic watchdog"
978 depends on OF && MFD_SPMI_PMIC
979 select WATCHDOG_CORE
980 help
981 Say Y here to include support watchdog timer embedded into the
982 pm8916 module.
983
984config VISCONTI_WATCHDOG
985 tristate "Toshiba Visconti series watchdog support"
986 depends on ARCH_VISCONTI || COMPILE_TEST
987 select WATCHDOG_CORE
988 help
989 Say Y here to include support for the watchdog timer in Toshiba
990 Visconti SoCs.
991
992config MSC313E_WATCHDOG
993 tristate "MStar MSC313e watchdog"
994 depends on ARCH_MSTARV7 || COMPILE_TEST
995 select WATCHDOG_CORE
996 help
997 Say Y here to include support for the Watchdog timer embedded
998 into MStar MSC313e chips. This will reboot your system when the
999 timeout is reached.
1000
1001 To compile this driver as a module, choose M here: the
1002 module will be called msc313e_wdt.
1003
1004# X86 (i386 + ia64 + x86_64) Architecture
1005
1006config ACQUIRE_WDT
1007 tristate "Acquire SBC Watchdog Timer"
1008 depends on X86
1009 help
1010 This is the driver for the hardware watchdog on Single Board
1011 Computers produced by Acquire Inc (and others). This watchdog
1012 simply watches your kernel to make sure it doesn't freeze, and if
1013 it does, it reboots your computer after a certain amount of time.
1014
1015 To compile this driver as a module, choose M here: the
1016 module will be called acquirewdt.
1017
1018 Most people will say N.
1019
1020config ADVANTECH_WDT
1021 tristate "Advantech SBC Watchdog Timer"
1022 depends on X86
1023 help
1024 If you are configuring a Linux kernel for the Advantech single-board
1025 computer, say `Y' here to support its built-in watchdog timer
1026 feature. More information can be found at
1027 <https://www.advantech.com.tw/products/>
1028
1029config ALIM1535_WDT
1030 tristate "ALi M1535 PMU Watchdog Timer"
1031 depends on X86 && PCI
1032 help
1033 This is the driver for the hardware watchdog on the ALi M1535 PMU.
1034
1035 To compile this driver as a module, choose M here: the
1036 module will be called alim1535_wdt.
1037
1038 Most people will say N.
1039
1040config ALIM7101_WDT
1041 tristate "ALi M7101 PMU Computer Watchdog"
1042 depends on PCI
1043 help
1044 This is the driver for the hardware watchdog on the ALi M7101 PMU
1045 as used in the x86 Cobalt servers and also found in some
1046 SPARC Netra servers too.
1047
1048 To compile this driver as a module, choose M here: the
1049 module will be called alim7101_wdt.
1050
1051 Most people will say N.
1052
1053config EBC_C384_WDT
1054 tristate "WinSystems EBC-C384 Watchdog Timer"
1055 depends on X86
1056 select ISA_BUS_API
1057 select WATCHDOG_CORE
1058 help
1059 Enables watchdog timer support for the watchdog timer on the
1060 WinSystems EBC-C384 motherboard. The timeout may be configured via
1061 the timeout module parameter.
1062
1063config F71808E_WDT
1064 tristate "Fintek F718xx, F818xx Super I/O Watchdog"
1065 depends on X86
1066 help
1067 This is the driver for the hardware watchdog on the Fintek F71808E,
1068 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and
1069 F81866 Super I/O controllers.
1070
1071 You can compile this driver directly into the kernel, or use
1072 it as a module. The module will be called f71808e_wdt.
1073
1074config SP5100_TCO
1075 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
1076 depends on X86 && PCI
1077 select WATCHDOG_CORE
1078 help
1079 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
1080 (Total Cost of Ownership) timer is a watchdog timer that will reboot
1081 the machine after its expiration. The expiration time can be
1082 configured with the "heartbeat" parameter.
1083
1084 To compile this driver as a module, choose M here: the
1085 module will be called sp5100_tco.
1086
1087config GEODE_WDT
1088 tristate "AMD Geode CS5535/CS5536 Watchdog"
1089 depends on CS5535_MFGPT
1090 help
1091 This driver enables a watchdog capability built into the
1092 CS5535/CS5536 companion chips for the AMD Geode GX and LX
1093 processors. This watchdog watches your kernel to make sure
1094 it doesn't freeze, and if it does, it reboots your computer after
1095 a certain amount of time.
1096
1097 You can compile this driver directly into the kernel, or use
1098 it as a module. The module will be called geodewdt.
1099
1100config SC520_WDT
1101 tristate "AMD Elan SC520 processor Watchdog"
1102 depends on MELAN || COMPILE_TEST
1103 help
1104 This is the driver for the hardware watchdog built in to the
1105 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
1106 This watchdog simply watches your kernel to make sure it doesn't
1107 freeze, and if it does, it reboots your computer after a certain
1108 amount of time.
1109
1110 You can compile this driver directly into the kernel, or use
1111 it as a module. The module will be called sc520_wdt.
1112
1113config SBC_FITPC2_WATCHDOG
1114 tristate "Compulab SBC-FITPC2 watchdog"
1115 depends on X86
1116 help
1117 This is the driver for the built-in watchdog timer on the fit-PC2,
1118 fit-PC2i, CM-iAM single-board computers made by Compulab.
1119
1120 It's possible to enable the watchdog timer either from BIOS (F2) or
1121 from booted Linux.
1122 When the "Watchdog Timer Value" is enabled one can set 31-255 seconds
1123 operational range.
1124
1125 Entering BIOS setup temporarily disables watchdog operation regardless
1126 of current state, so system will not be restarted while user is in
1127 BIOS setup.
1128
1129 Once the watchdog is enabled the system will be restarted every
1130 "Watchdog Timer Value" period, so to prevent it user can restart or
1131 disable the watchdog.
1132
1133 To compile this driver as a module, choose M here: the
1134 module will be called sbc_fitpc2_wdt.
1135
1136 Most people will say N.
1137
1138config EUROTECH_WDT
1139 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1140 depends on X86
1141 help
1142 Enable support for the watchdog timer on the Eurotech CPU-1220 and
1143 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
1144 information are at <http://www.eurotech.it/>.
1145
1146config IB700_WDT
1147 tristate "IB700 SBC Watchdog Timer"
1148 depends on X86
1149 help
1150 This is the driver for the hardware watchdog on the IB700 Single
1151 Board Computer produced by TMC Technology (www.tmc-uk.com). This
1152 watchdog simply watches your kernel to make sure it doesn't freeze,
1153 and if it does, it reboots your computer after a certain amount of time.
1154
1155 This driver is like the WDT501 driver but for slightly different
1156 hardware.
1157
1158 To compile this driver as a module, choose M here: the
1159 module will be called ib700wdt.
1160
1161 Most people will say N.
1162
1163config IBMASR
1164 tristate "IBM Automatic Server Restart"
1165 depends on X86
1166 help
1167 This is the driver for the IBM Automatic Server Restart watchdog
1168 timer built-in into some eServer xSeries machines.
1169
1170 To compile this driver as a module, choose M here: the
1171 module will be called ibmasr.
1172
1173config WAFER_WDT
1174 tristate "ICP Single Board Computer Watchdog Timer"
1175 depends on X86
1176 help
1177 This is a driver for the hardware watchdog on the ICP Single
1178 Board Computer. This driver is working on (at least) the following
1179 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1180
1181 To compile this driver as a module, choose M here: the
1182 module will be called wafer5823wdt.
1183
1184config I6300ESB_WDT
1185 tristate "Intel 6300ESB Timer/Watchdog"
1186 depends on PCI
1187 select WATCHDOG_CORE
1188 help
1189 Hardware driver for the watchdog timer built into the Intel
1190 6300ESB controller hub.
1191
1192 To compile this driver as a module, choose M here: the
1193 module will be called i6300esb.
1194
1195config IE6XX_WDT
1196 tristate "Intel Atom E6xx Watchdog"
1197 depends on X86 && PCI
1198 select WATCHDOG_CORE
1199 select MFD_CORE
1200 select LPC_SCH
1201 help
1202 Hardware driver for the watchdog timer built into the Intel
1203 Atom E6XX (TunnelCreek) processor.
1204
1205 To compile this driver as a module, choose M here: the
1206 module will be called ie6xx_wdt.
1207
1208config INTEL_MID_WATCHDOG
1209 tristate "Intel MID Watchdog Timer"
1210 depends on X86_INTEL_MID
1211 select WATCHDOG_CORE
1212 help
1213 Watchdog timer driver built into the Intel SCU for Intel MID
1214 Platforms.
1215
1216 This driver currently supports only the watchdog evolution
1217 implementation in SCU, available for Merrifield generation.
1218
1219 To compile this driver as a module, choose M here.
1220
1221config ITCO_WDT
1222 tristate "Intel TCO Timer/Watchdog"
1223 depends on (X86 || IA64) && PCI
1224 select WATCHDOG_CORE
1225 depends on I2C || I2C=n
1226 depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT
1227 select LPC_ICH if !EXPERT
1228 select I2C_I801 if !EXPERT && I2C
1229 help
1230 Hardware driver for the intel TCO timer based watchdog devices.
1231 These drivers are included in the Intel 82801 I/O Controller
1232 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1233 controller hub.
1234
1235 The TCO (Total Cost of Ownership) timer is a watchdog timer
1236 that will reboot the machine after its second expiration. The
1237 expiration time can be configured with the "heartbeat" parameter.
1238
1239 On some motherboards the driver may fail to reset the chipset's
1240 NO_REBOOT flag which prevents the watchdog from rebooting the
1241 machine. If this is the case you will get a kernel message like
1242 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1243
1244 To compile this driver as a module, choose M here: the
1245 module will be called iTCO_wdt.
1246
1247config ITCO_VENDOR_SUPPORT
1248 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1249 depends on ITCO_WDT
1250 help
1251 Add vendor specific support to the intel TCO timer based watchdog
1252 devices. At this moment we only have additional support for some
1253 SuperMicro Inc. motherboards.
1254
1255config IT8712F_WDT
1256 tristate "IT8712F (Smart Guardian) Watchdog Timer"
1257 depends on X86
1258 help
1259 This is the driver for the built-in watchdog timer on the IT8712F
1260 Super I/0 chipset used on many motherboards.
1261
1262 If the driver does not work, then make sure that the game port in
1263 the BIOS is enabled.
1264
1265 To compile this driver as a module, choose M here: the
1266 module will be called it8712f_wdt.
1267
1268config IT87_WDT
1269 tristate "IT87 Watchdog Timer"
1270 depends on X86
1271 select WATCHDOG_CORE
1272 help
1273 This is the driver for the hardware watchdog on the ITE IT8607,
1274 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1275 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1276 IT8783 Super I/O chips.
1277
1278 This watchdog simply watches your kernel to make sure it doesn't
1279 freeze, and if it does, it reboots your computer after a certain
1280 amount of time.
1281
1282 To compile this driver as a module, choose M here: the module will
1283 be called it87_wdt.
1284
1285config HP_WATCHDOG
1286 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1287 select WATCHDOG_CORE
1288 depends on X86 && PCI
1289 help
1290 A software monitoring watchdog and NMI handling driver. This driver
1291 will detect lockups and provide a stack trace. This is a driver that
1292 will only load on an HP ProLiant system with a minimum of iLO2 support.
1293 To compile this driver as a module, choose M here: the module will be
1294 called hpwdt.
1295
1296config HPWDT_NMI_DECODING
1297 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1298 depends on HP_WATCHDOG
1299 default y
1300 help
1301 Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1302 "Generate NMI to System" virtual button. When an NMI is claimed
1303 by the driver, panic is called.
1304
1305config KEMPLD_WDT
1306 tristate "Kontron COM Watchdog Timer"
1307 depends on MFD_KEMPLD
1308 select WATCHDOG_CORE
1309 help
1310 Support for the PLD watchdog on some Kontron ETX and COMexpress
1311 (ETXexpress) modules
1312
1313 This driver can also be built as a module. If so, the module will be
1314 called kempld_wdt.
1315
1316config SC1200_WDT
1317 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1318 depends on X86
1319 help
1320 This is a driver for National Semiconductor PC87307/PC97307 hardware
1321 watchdog cards as found on the SC1200. This watchdog is mainly used
1322 for power management purposes and can be used to power down the device
1323 during inactivity periods (includes interrupt activity monitoring).
1324
1325 To compile this driver as a module, choose M here: the
1326 module will be called sc1200wdt.
1327
1328 Most people will say N.
1329
1330config SCx200_WDT
1331 tristate "National Semiconductor SCx200 Watchdog"
1332 depends on SCx200 && PCI
1333 help
1334 Enable the built-in watchdog timer support on the National
1335 Semiconductor SCx200 processors.
1336
1337 If compiled as a module, it will be called scx200_wdt.
1338
1339config PC87413_WDT
1340 tristate "NS PC87413 watchdog"
1341 depends on X86
1342 help
1343 This is the driver for the hardware watchdog on the PC87413 chipset
1344 This watchdog simply watches your kernel to make sure it doesn't
1345 freeze, and if it does, it reboots your computer after a certain
1346 amount of time.
1347
1348 To compile this driver as a module, choose M here: the
1349 module will be called pc87413_wdt.
1350
1351 Most people will say N.
1352
1353config NV_TCO
1354 tristate "nVidia TCO Timer/Watchdog"
1355 depends on X86 && PCI
1356 help
1357 Hardware driver for the TCO timer built into the nVidia Hub family
1358 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
1359 watchdog timer that will reboot the machine after its second
1360 expiration. The expiration time can be configured with the
1361 "heartbeat" parameter.
1362
1363 On some motherboards the driver may fail to reset the chipset's
1364 NO_REBOOT flag which prevents the watchdog from rebooting the
1365 machine. If this is the case you will get a kernel message like
1366 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1367
1368 To compile this driver as a module, choose M here: the
1369 module will be called nv_tco.
1370
1371config RDC321X_WDT
1372 tristate "RDC R-321x SoC watchdog"
1373 depends on X86_RDC321X || COMPILE_TEST
1374 depends on PCI
1375 help
1376 This is the driver for the built in hardware watchdog
1377 in the RDC R-321x SoC.
1378
1379 To compile this driver as a module, choose M here: the
1380 module will be called rdc321x_wdt.
1381
1382config 60XX_WDT
1383 tristate "SBC-60XX Watchdog Timer"
1384 depends on X86
1385 help
1386 This driver can be used with the watchdog timer found on some
1387 single board computers, namely the 6010 PII based computer.
1388 It may well work with other cards. It reads port 0x443 to enable
1389 and re-set the watchdog timer, and reads port 0x45 to disable
1390 the watchdog. If you have a card that behave in similar ways,
1391 you can probably make this driver work with your card as well.
1392
1393 You can compile this driver directly into the kernel, or use
1394 it as a module. The module will be called sbc60xxwdt.
1395
1396config SBC8360_WDT
1397 tristate "SBC8360 Watchdog Timer"
1398 depends on X86_32
1399 help
1400
1401 This is the driver for the hardware watchdog on the SBC8360 Single
1402 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1403
1404 To compile this driver as a module, choose M here: the
1405 module will be called sbc8360.
1406
1407 Most people will say N.
1408
1409config SBC7240_WDT
1410 tristate "SBC Nano 7240 Watchdog Timer"
1411 depends on X86_32 && !UML
1412 help
1413 This is the driver for the hardware watchdog found on the IEI
1414 single board computers EPIC Nano 7240 (and likely others). This
1415 watchdog simply watches your kernel to make sure it doesn't freeze,
1416 and if it does, it reboots your computer after a certain amount of
1417 time.
1418
1419 To compile this driver as a module, choose M here: the
1420 module will be called sbc7240_wdt.
1421
1422config CPU5_WDT
1423 tristate "SMA CPU5 Watchdog"
1424 depends on X86
1425 help
1426 TBD.
1427 To compile this driver as a module, choose M here: the
1428 module will be called cpu5wdt.
1429
1430config SMSC_SCH311X_WDT
1431 tristate "SMSC SCH311X Watchdog Timer"
1432 depends on X86
1433 help
1434 This is the driver for the hardware watchdog timer on the
1435 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1436 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1437 serial ports).
1438
1439 To compile this driver as a module, choose M here: the
1440 module will be called sch311x_wdt.
1441
1442config SMSC37B787_WDT
1443 tristate "Winbond SMsC37B787 Watchdog Timer"
1444 depends on X86
1445 help
1446 This is the driver for the hardware watchdog component on the
1447 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1448 from Vision Systems and maybe others.
1449
1450 This watchdog simply watches your kernel to make sure it doesn't
1451 freeze, and if it does, it reboots your computer after a certain
1452 amount of time.
1453
1454 Usually a userspace daemon will notify the kernel WDT driver that
1455 userspace is still alive, at regular intervals.
1456
1457 To compile this driver as a module, choose M here: the
1458 module will be called smsc37b787_wdt.
1459
1460 Most people will say N.
1461
1462config TQMX86_WDT
1463 tristate "TQ-Systems TQMX86 Watchdog Timer"
1464 depends on X86
1465 select WATCHDOG_CORE
1466 help
1467 This is the driver for the hardware watchdog timer in the TQMX86 IO
1468 controller found on some of their ComExpress Modules.
1469
1470 To compile this driver as a module, choose M here; the module
1471 will be called tqmx86_wdt.
1472
1473 Most people will say N.
1474
1475config VIA_WDT
1476 tristate "VIA Watchdog Timer"
1477 depends on X86 && PCI
1478 select WATCHDOG_CORE
1479 help
1480 This is the driver for the hardware watchdog timer on VIA
1481 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1482
1483 To compile this driver as a module, choose M here; the module
1484 will be called via_wdt.
1485
1486 Most people will say N.
1487
1488config W83627HF_WDT
1489 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1490 depends on X86
1491 select WATCHDOG_CORE
1492 help
1493 This is the driver for the hardware watchdog on the following
1494 Super I/O chips.
1495 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1496 W83637HF
1497 W83667HG/HG-B
1498 W83687THF
1499 W83697HF
1500 W83697UG
1501 NCT6775
1502 NCT6776
1503 NCT6779
1504 NCT6791
1505 NCT6792
1506 NCT6102D/04D/06D
1507 NCT6116D
1508
1509 This watchdog simply watches your kernel to make sure it doesn't
1510 freeze, and if it does, it reboots your computer after a certain
1511 amount of time.
1512
1513 To compile this driver as a module, choose M here: the
1514 module will be called w83627hf_wdt.
1515
1516 Most people will say N.
1517
1518config W83877F_WDT
1519 tristate "W83877F (EMACS) Watchdog Timer"
1520 depends on X86
1521 help
1522 This is the driver for the hardware watchdog on the W83877F chipset
1523 as used in EMACS PC-104 motherboards (and likely others). This
1524 watchdog simply watches your kernel to make sure it doesn't freeze,
1525 and if it does, it reboots your computer after a certain amount of
1526 time.
1527
1528 To compile this driver as a module, choose M here: the
1529 module will be called w83877f_wdt.
1530
1531 Most people will say N.
1532
1533config W83977F_WDT
1534 tristate "W83977F (PCM-5335) Watchdog Timer"
1535 depends on X86
1536 help
1537 This is the driver for the hardware watchdog on the W83977F I/O chip
1538 as used in AAEON's PCM-5335 SBC (and likely others). This
1539 watchdog simply watches your kernel to make sure it doesn't freeze,
1540 and if it does, it reboots your computer after a certain amount of
1541 time.
1542
1543 To compile this driver as a module, choose M here: the
1544 module will be called w83977f_wdt.
1545
1546config MACHZ_WDT
1547 tristate "ZF MachZ Watchdog"
1548 depends on X86
1549 help
1550 If you are using a ZF Micro MachZ processor, say Y here, otherwise
1551 N. This is the driver for the watchdog timer built-in on that
1552 processor using ZF-Logic interface. This watchdog simply watches
1553 your kernel to make sure it doesn't freeze, and if it does, it
1554 reboots your computer after a certain amount of time.
1555
1556 To compile this driver as a module, choose M here: the
1557 module will be called machzwd.
1558
1559config SBC_EPX_C3_WATCHDOG
1560 tristate "Winsystems SBC EPX-C3 watchdog"
1561 depends on X86
1562 help
1563 This is the driver for the built-in watchdog timer on the EPX-C3
1564 Single-board computer made by Winsystems, Inc.
1565
1566 *Note*: This hardware watchdog is not probeable and thus there
1567 is no way to know if writing to its IO address will corrupt
1568 your system or have any real effect. The only way to be sure
1569 that this driver does what you want is to make sure you
1570 are running it on an EPX-C3 from Winsystems with the watchdog
1571 timer at IO address 0x1ee and 0x1ef. It will write to both those
1572 IO ports. Basically, the assumption is made that if you compile
1573 this driver into your kernel and/or load it as a module, that you
1574 know what you are doing and that you are in fact running on an
1575 EPX-C3 board!
1576
1577 To compile this driver as a module, choose M here: the
1578 module will be called sbc_epx_c3.
1579
1580config INTEL_MEI_WDT
1581 tristate "Intel MEI iAMT Watchdog"
1582 depends on INTEL_MEI && X86
1583 select WATCHDOG_CORE
1584 help
1585 A device driver for the Intel MEI iAMT watchdog.
1586
1587 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1588 Whenever the OS hangs or crashes, iAMT will send an event
1589 to any subscriber to this event. The watchdog doesn't reset the
1590 the platform.
1591
1592 To compile this driver as a module, choose M here:
1593 the module will be called mei_wdt.
1594
1595config NI903X_WDT
1596 tristate "NI 903x/913x Watchdog"
1597 depends on X86 && ACPI
1598 select WATCHDOG_CORE
1599 help
1600 This is the driver for the watchdog timer on the National Instruments
1601 903x/913x real-time controllers.
1602
1603 To compile this driver as a module, choose M here: the module will be
1604 called ni903x_wdt.
1605
1606config NIC7018_WDT
1607 tristate "NIC7018 Watchdog"
1608 depends on X86 && ACPI
1609 select WATCHDOG_CORE
1610 help
1611 Support for National Instruments NIC7018 Watchdog.
1612
1613 To compile this driver as a module, choose M here: the module will be
1614 called nic7018_wdt.
1615
1616# M68K Architecture
1617
1618config M54xx_WATCHDOG
1619 tristate "MCF54xx watchdog support"
1620 depends on M548x
1621 help
1622 To compile this driver as a module, choose M here: the
1623 module will be called m54xx_wdt.
1624
1625# MicroBlaze Architecture
1626
1627# MIPS Architecture
1628
1629config ATH79_WDT
1630 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1631 depends on ATH79 || (ARM && COMPILE_TEST)
1632 help
1633 Hardware driver for the built-in watchdog timer on the Atheros
1634 AR71XX/AR724X/AR913X SoCs.
1635
1636config BCM47XX_WDT
1637 tristate "Broadcom BCM47xx Watchdog Timer"
1638 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1639 select WATCHDOG_CORE
1640 help
1641 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1642
1643config RC32434_WDT
1644 tristate "IDT RC32434 SoC Watchdog Timer"
1645 depends on MIKROTIK_RB532
1646 help
1647 Hardware driver for the IDT RC32434 SoC built-in
1648 watchdog timer.
1649
1650 To compile this driver as a module, choose M here: the
1651 module will be called rc32434_wdt.
1652
1653config INDYDOG
1654 tristate "Indy/I2 Hardware Watchdog"
1655 depends on SGI_HAS_INDYDOG
1656 help
1657 Hardware driver for the Indy's/I2's watchdog. This is a
1658 watchdog timer that will reboot the machine after a 60 second
1659 timer expired and no process has written to /dev/watchdog during
1660 that time.
1661
1662config JZ4740_WDT
1663 tristate "Ingenic jz4740 SoC hardware watchdog"
1664 depends on MIPS
1665 depends on COMMON_CLK
1666 select WATCHDOG_CORE
1667 select MFD_SYSCON
1668 help
1669 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1670
1671config WDT_MTX1
1672 tristate "MTX-1 Hardware Watchdog"
1673 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1674 help
1675 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1676 will reboot the machine after a 100 seconds timer expired.
1677
1678config SIBYTE_WDOG
1679 tristate "Sibyte SoC hardware watchdog"
1680 depends on CPU_SB1 || (MIPS && COMPILE_TEST)
1681 help
1682 Watchdog driver for the built in watchdog hardware in Sibyte
1683 SoC processors. There are apparently two watchdog timers
1684 on such processors; this driver supports only the first one,
1685 because currently Linux only supports exporting one watchdog
1686 to userspace.
1687
1688 To compile this driver as a loadable module, choose M here.
1689 The module will be called sb_wdog.
1690
1691config AR7_WDT
1692 tristate "TI AR7 Watchdog Timer"
1693 depends on AR7 || (MIPS && COMPILE_TEST)
1694 help
1695 Hardware driver for the TI AR7 Watchdog Timer.
1696
1697config TXX9_WDT
1698 tristate "Toshiba TXx9 Watchdog Timer"
1699 depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
1700 select WATCHDOG_CORE
1701 help
1702 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1703
1704config OCTEON_WDT
1705 tristate "Cavium OCTEON SOC family Watchdog Timer"
1706 depends on CAVIUM_OCTEON_SOC
1707 default y
1708 select WATCHDOG_CORE
1709 select EXPORT_UASM if OCTEON_WDT = m
1710 help
1711 Hardware driver for OCTEON's on chip watchdog timer.
1712 Enables the watchdog for all cores running Linux. It
1713 installs a NMI handler and pokes the watchdog based on an
1714 interrupt. On first expiration of the watchdog, the
1715 interrupt handler pokes it. The second expiration causes an
1716 NMI that prints a message. The third expiration causes a
1717 global soft reset.
1718
1719 When userspace has /dev/watchdog open, no poking is done
1720 from the first interrupt, it is then only poked when the
1721 device is written.
1722
1723config BCM63XX_WDT
1724 tristate "Broadcom BCM63xx hardware watchdog"
1725 depends on BCM63XX
1726 help
1727 Watchdog driver for the built in watchdog hardware in Broadcom
1728 BCM63xx SoC.
1729
1730 To compile this driver as a loadable module, choose M here.
1731 The module will be called bcm63xx_wdt.
1732
1733config BCM2835_WDT
1734 tristate "Broadcom BCM2835 hardware watchdog"
1735 depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1736 select WATCHDOG_CORE
1737 help
1738 Watchdog driver for the built in watchdog hardware in Broadcom
1739 BCM2835 SoC.
1740
1741 To compile this driver as a loadable module, choose M here.
1742 The module will be called bcm2835_wdt.
1743
1744config BCM_KONA_WDT
1745 tristate "BCM Kona Watchdog"
1746 depends on ARCH_BCM_MOBILE || COMPILE_TEST
1747 select WATCHDOG_CORE
1748 help
1749 Support for the watchdog timer on the following Broadcom BCM281xx
1750 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1751 BCM28155 variants.
1752
1753 Say 'Y' or 'M' here to enable the driver. The module will be called
1754 bcm_kona_wdt.
1755
1756config BCM_KONA_WDT_DEBUG
1757 bool "DEBUGFS support for BCM Kona Watchdog"
1758 depends on BCM_KONA_WDT
1759 help
1760 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1761 access to the driver's internal data structures as well as watchdog
1762 timer hardware registres.
1763
1764 If in doubt, say 'N'.
1765
1766config BCM7038_WDT
1767 tristate "BCM7038 Watchdog"
1768 select WATCHDOG_CORE
1769 depends on HAS_IOMEM
1770 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1771 help
1772 Watchdog driver for the built-in hardware in Broadcom 7038 and
1773 later SoCs used in set-top boxes. BCM7038 was made public
1774 during the 2004 CES, and since then, many Broadcom chips use this
1775 watchdog block, including some cable modem chips.
1776
1777config IMGPDC_WDT
1778 tristate "Imagination Technologies PDC Watchdog Timer"
1779 depends on HAS_IOMEM
1780 depends on MIPS || COMPILE_TEST
1781 select WATCHDOG_CORE
1782 help
1783 Driver for Imagination Technologies PowerDown Controller
1784 Watchdog Timer.
1785
1786 To compile this driver as a loadable module, choose M here.
1787 The module will be called imgpdc_wdt.
1788
1789config LANTIQ_WDT
1790 tristate "Lantiq SoC watchdog"
1791 depends on LANTIQ
1792 select WATCHDOG_CORE
1793 help
1794 Hardware driver for the Lantiq SoC Watchdog Timer.
1795
1796config LOONGSON1_WDT
1797 tristate "Loongson1 SoC hardware watchdog"
1798 depends on MACH_LOONGSON32
1799 select WATCHDOG_CORE
1800 help
1801 Hardware driver for the Loongson1 SoC Watchdog Timer.
1802
1803config RALINK_WDT
1804 tristate "Ralink SoC watchdog"
1805 select WATCHDOG_CORE
1806 depends on RALINK
1807 help
1808 Hardware driver for the Ralink SoC Watchdog Timer.
1809
1810config MT7621_WDT
1811 tristate "Mediatek SoC watchdog"
1812 select WATCHDOG_CORE
1813 depends on SOC_MT7620 || SOC_MT7621
1814 help
1815 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1816
1817config PIC32_WDT
1818 tristate "Microchip PIC32 hardware watchdog"
1819 select WATCHDOG_CORE
1820 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1821 help
1822 Watchdog driver for the built in watchdog hardware in a PIC32.
1823
1824 Configuration bits must be set appropriately for the watchdog to be
1825 controlled by this driver.
1826
1827 To compile this driver as a loadable module, choose M here.
1828 The module will be called pic32-wdt.
1829
1830config PIC32_DMT
1831 tristate "Microchip PIC32 Deadman Timer"
1832 select WATCHDOG_CORE
1833 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1834 help
1835 Watchdog driver for PIC32 instruction fetch counting timer. This
1836 specific timer is typically be used in mission critical and safety
1837 critical applications, where any single failure of the software
1838 functionality and sequencing must be detected.
1839
1840 To compile this driver as a loadable module, choose M here.
1841 The module will be called pic32-dmt.
1842
1843# PARISC Architecture
1844
1845# POWERPC Architecture
1846
1847config GEF_WDT
1848 tristate "GE Watchdog Timer"
1849 depends on GE_FPGA
1850 help
1851 Watchdog timer found in a number of GE single board computers.
1852
1853config MPC5200_WDT
1854 bool "MPC52xx Watchdog Timer"
1855 depends on PPC_MPC52xx || COMPILE_TEST
1856 help
1857 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1858
1859config 8xxx_WDT
1860 tristate "MPC8xxx Platform Watchdog Timer"
1861 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1862 select WATCHDOG_CORE
1863 help
1864 This driver is for a SoC level watchdog that exists on some
1865 Freescale PowerPC processors. So far this driver supports:
1866 - MPC8xx watchdogs
1867 - MPC83xx watchdogs
1868 - MPC86xx watchdogs
1869
1870 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1871
1872config PIKA_WDT
1873 tristate "PIKA FPGA Watchdog"
1874 depends on WARP || (PPC64 && COMPILE_TEST)
1875 default y
1876 help
1877 This enables the watchdog in the PIKA FPGA. Currently used on
1878 the Warp platform.
1879
1880config BOOKE_WDT
1881 tristate "PowerPC Book-E Watchdog Timer"
1882 depends on BOOKE || 4xx
1883 select WATCHDOG_CORE
1884 help
1885 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1886 MPC85xx SOCs and the IBM PowerPC 440.
1887
1888 Please see Documentation/watchdog/watchdog-api.rst for
1889 more information.
1890
1891config BOOKE_WDT_DEFAULT_TIMEOUT
1892 int "PowerPC Book-E Watchdog Timer Default Timeout"
1893 depends on BOOKE_WDT
1894 default 38 if PPC_FSL_BOOK3E
1895 range 0 63 if PPC_FSL_BOOK3E
1896 default 3 if !PPC_FSL_BOOK3E
1897 range 0 3 if !PPC_FSL_BOOK3E
1898 help
1899 Select the default watchdog timer period to be used by the PowerPC
1900 Book-E watchdog driver. A watchdog "event" occurs when the bit
1901 position represented by this number transitions from zero to one.
1902
1903 For Freescale Book-E processors, this is a number between 0 and 63.
1904 For other Book-E processors, this is a number between 0 and 3.
1905
1906 The value can be overridden by the wdt_period command-line parameter.
1907
1908config MEN_A21_WDT
1909 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1910 select WATCHDOG_CORE
1911 depends on GPIOLIB || COMPILE_TEST
1912 help
1913 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1914
1915 The driver can also be built as a module. If so, the module will be
1916 called mena21_wdt.
1917
1918 If unsure select N here.
1919
1920# PPC64 Architecture
1921
1922config WATCHDOG_RTAS
1923 tristate "RTAS watchdog"
1924 depends on PPC_RTAS
1925 help
1926 This driver adds watchdog support for the RTAS watchdog.
1927
1928 To compile this driver as a module, choose M here. The module
1929 will be called wdrtas.
1930
1931# S390 Architecture
1932
1933config DIAG288_WATCHDOG
1934 tristate "System z diag288 Watchdog"
1935 depends on S390
1936 select WATCHDOG_CORE
1937 help
1938 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1939 provide a virtual watchdog timer to their guest that cause a
1940 user define Control Program command to be executed after a
1941 timeout.
1942 LPAR provides a very similar interface. This driver handles
1943 both.
1944
1945 To compile this driver as a module, choose M here. The module
1946 will be called diag288_wdt.
1947
1948# SUPERH (sh + sh64) Architecture
1949
1950config SH_WDT
1951 tristate "SuperH Watchdog"
1952 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1953 select WATCHDOG_CORE
1954 help
1955 This driver adds watchdog support for the integrated watchdog in the
1956 SuperH processors. If you have one of these processors and wish
1957 to have watchdog support enabled, say Y, otherwise say N.
1958
1959 As a side note, saying Y here will automatically boost HZ to 1000
1960 so that the timer has a chance to clear the overflow counter. On
1961 slower systems (such as the SH-2 and SH-3) this will likely yield
1962 some performance issues. As such, the WDT should be avoided here
1963 unless it is absolutely necessary.
1964
1965 To compile this driver as a module, choose M here: the
1966 module will be called shwdt.
1967
1968# SPARC Architecture
1969
1970# SPARC64 Architecture
1971
1972config WATCHDOG_CP1XXX
1973 tristate "CP1XXX Hardware Watchdog support"
1974 depends on SPARC64 && PCI
1975 help
1976 This is the driver for the hardware watchdog timers present on
1977 Sun Microsystems CompactPCI models CP1400 and CP1500.
1978
1979 To compile this driver as a module, choose M here: the
1980 module will be called cpwatchdog.
1981
1982 If you do not have a CompactPCI model CP1400 or CP1500, or
1983 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1984 you should say N to this option.
1985
1986config WATCHDOG_RIO
1987 tristate "RIO Hardware Watchdog support"
1988 depends on SPARC64 && PCI
1989 help
1990 Say Y here to support the hardware watchdog capability on Sun RIO
1991 machines. The watchdog timeout period is normally one minute but
1992 can be changed with a boot-time parameter.
1993
1994config WATCHDOG_SUN4V
1995 tristate "Sun4v Watchdog support"
1996 select WATCHDOG_CORE
1997 depends on SPARC64
1998 help
1999 Say Y here to support the hypervisor watchdog capability embedded
2000 in the SPARC sun4v architecture.
2001
2002 To compile this driver as a module, choose M here. The module will
2003 be called sun4v_wdt.
2004
2005# XTENSA Architecture
2006
2007# Xen Architecture
2008
2009config XEN_WDT
2010 tristate "Xen Watchdog support"
2011 depends on XEN
2012 select WATCHDOG_CORE
2013 help
2014 Say Y here to support the hypervisor watchdog capability provided
2015 by Xen 4.0 and newer. The watchdog timeout period is normally one
2016 minute but can be changed with a boot-time parameter.
2017
2018config UML_WATCHDOG
2019 tristate "UML watchdog"
2020 depends on UML || COMPILE_TEST
2021
2022#
2023# ISA-based Watchdog Cards
2024#
2025
2026comment "ISA-based Watchdog Cards"
2027 depends on ISA
2028
2029config PCWATCHDOG
2030 tristate "Berkshire Products ISA-PC Watchdog"
2031 depends on ISA
2032 help
2033 This is the driver for the Berkshire Products ISA-PC Watchdog card.
2034 This card simply watches your kernel to make sure it doesn't freeze,
2035 and if it does, it reboots your computer after a certain amount of
2036 time. This driver is like the WDT501 driver but for different
2037 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>.
2038 The PC watchdog cards can be ordered from <http://www.berkprod.com/>.
2039
2040 To compile this driver as a module, choose M here: the
2041 module will be called pcwd.
2042
2043 Most people will say N.
2044
2045config MIXCOMWD
2046 tristate "Mixcom Watchdog"
2047 depends on ISA
2048 help
2049 This is a driver for the Mixcom hardware watchdog cards. This
2050 watchdog simply watches your kernel to make sure it doesn't freeze,
2051 and if it does, it reboots your computer after a certain amount of
2052 time.
2053
2054 To compile this driver as a module, choose M here: the
2055 module will be called mixcomwd.
2056
2057 Most people will say N.
2058
2059config WDT
2060 tristate "WDT Watchdog timer"
2061 depends on ISA
2062 help
2063 If you have a WDT500P or WDT501P watchdog board, say Y here,
2064 otherwise N. It is not possible to probe for this board, which means
2065 that you have to inform the kernel about the IO port and IRQ that
2066 is needed (you can do this via the io and irq parameters)
2067
2068 To compile this driver as a module, choose M here: the
2069 module will be called wdt.
2070
2071#
2072# PCI-based Watchdog Cards
2073#
2074
2075comment "PCI-based Watchdog Cards"
2076 depends on PCI
2077
2078config PCIPCWATCHDOG
2079 tristate "Berkshire Products PCI-PC Watchdog"
2080 depends on PCI
2081 help
2082 This is the driver for the Berkshire Products PCI-PC Watchdog card.
2083 This card simply watches your kernel to make sure it doesn't freeze,
2084 and if it does, it reboots your computer after a certain amount of
2085 time. The card can also monitor the internal temperature of the PC.
2086 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2087
2088 To compile this driver as a module, choose M here: the
2089 module will be called pcwd_pci.
2090
2091 Most people will say N.
2092
2093config WDTPCI
2094 tristate "PCI-WDT500/501 Watchdog timer"
2095 depends on PCI
2096 help
2097 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2098
2099 If you have a PCI-WDT501 watchdog board then you can enable the
2100 temperature sensor by setting the type parameter to 501.
2101
2102 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2103 can do this via the tachometer parameter. Only do this if you have a
2104 fan tachometer actually set up.
2105
2106 To compile this driver as a module, choose M here: the
2107 module will be called wdt_pci.
2108
2109#
2110# USB-based Watchdog Cards
2111#
2112
2113comment "USB-based Watchdog Cards"
2114 depends on USB
2115
2116config USBPCWATCHDOG
2117 tristate "Berkshire Products USB-PC Watchdog"
2118 depends on USB
2119 help
2120 This is the driver for the Berkshire Products USB-PC Watchdog card.
2121 This card simply watches your kernel to make sure it doesn't freeze,
2122 and if it does, it reboots your computer after a certain amount of
2123 time. The card can also monitor the internal temperature of the PC.
2124 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2125
2126 To compile this driver as a module, choose M here: the
2127 module will be called pcwd_usb.
2128
2129 Most people will say N.
2130
2131config KEEMBAY_WATCHDOG
2132 tristate "Intel Keem Bay SoC non-secure watchdog"
2133 depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST)
2134 select WATCHDOG_CORE
2135 help
2136 This option enable support for an In-secure watchdog timer driver for
2137 Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every
2138 count unit. An interrupt will be triggered, when the count crosses
2139 the threshold configured in the register.
2140
2141 To compile this driver as a module, choose M here: the
2142 module will be called keembay_wdt.
2143
2144endif # WATCHDOG