1 # SPDX-License-Identifier: GPL-2.0-only
4 # Watchdog device configuration
8 bool "Watchdog Timer Support"
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.
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.
34 tristate "WatchDog Timer Driver Core"
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
41 config WATCHDOG_NOWAYOUT
42 bool "Disable watchdog shutdown on close"
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
50 config WATCHDOG_HANDLE_BOOT_ENABLED
51 bool "Update boot-enabled watchdog until userspace takes over"
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.
61 config WATCHDOG_OPEN_TIMEOUT
62 int "Timeout value for opening watchdog device"
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".
71 bool "Read different watchdog information through sysfs"
73 Say Y here if you want to enable watchdog device status read through
76 config WATCHDOG_HRTIMER_PRETIMEOUT
77 bool "Enable watchdog hrtimer-based pretimeouts"
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.
84 comment "Watchdog Pretimeout Governors"
86 config WATCHDOG_PRETIMEOUT_GOV
87 bool "Enable watchdog pretimeout governors"
88 depends on WATCHDOG_CORE
90 The option allows to select watchdog pretimeout governors.
92 config WATCHDOG_PRETIMEOUT_GOV_SEL
94 depends on WATCHDOG_PRETIMEOUT_GOV
96 select WATCHDOG_PRETIMEOUT_GOV_PANIC if WATCHDOG_PRETIMEOUT_GOV_NOOP=n
98 if WATCHDOG_PRETIMEOUT_GOV
100 config WATCHDOG_PRETIMEOUT_GOV_NOOP
101 tristate "Noop watchdog pretimeout governor"
102 depends on WATCHDOG_CORE
103 default WATCHDOG_CORE
105 Noop watchdog pretimeout governor, only an informational
106 message is added to kernel log buffer.
108 config WATCHDOG_PRETIMEOUT_GOV_PANIC
109 tristate "Panic watchdog pretimeout governor"
110 depends on WATCHDOG_CORE
111 default WATCHDOG_CORE
113 Panic watchdog pretimeout governor, on watchdog pretimeout
114 event put the kernel into panic.
117 prompt "Default Watchdog Pretimeout Governor"
118 default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
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.
124 config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP
126 depends on WATCHDOG_PRETIMEOUT_GOV_NOOP
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.
132 config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
134 depends on WATCHDOG_PRETIMEOUT_GOV_PANIC
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.
142 endif # WATCHDOG_PRETIMEOUT_GOV
145 # General Watchdog drivers
148 comment "Watchdog Device Drivers"
150 # Architecture Independent
153 tristate "Software watchdog"
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.
160 To compile this driver as a module, choose M here: the
161 module will be called softdog.
163 config SOFT_WATCHDOG_PRETIMEOUT
164 bool "Software watchdog pretimeout governor support"
165 depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV
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!
171 config BD957XMUF_WATCHDOG
172 tristate "ROHM BD9576MUF and BD9573MUF PMIC Watchdog"
173 depends on MFD_ROHM_BD957XMUF
176 Support for the watchdog in the ROHM BD9576 and BD9573 PMICs.
177 These PMIC ICs contain watchdog block which can be configured
178 to toggle reset line if SoC fails to ping watchdog via GPIO.
180 Say Y here to include support for the ROHM BD9576 or BD9573
181 watchdog. Alternatively say M to compile the driver as a module,
182 which will be called bd9576_wdt.
184 config BD96801_WATCHDOG
185 tristate "ROHM BD96801 PMIC Watchdog"
186 depends on MFD_ROHM_BD96801
189 Support for the watchdog in the ROHM BD96801 PMIC. Watchdog can be
190 configured to only generate IRQ or to trigger system reset via reset
193 Say Y here to include support for the ROHM BD96801 watchdog.
194 Alternatively say M to compile the driver as a module,
195 which will be called bd96801_wdt.
197 config CROS_EC_WATCHDOG
198 tristate "ChromeOS EC-based watchdog"
202 Watchdog driver for Chromebook devices equipped with embedded controller.
203 Trigger event is recorded in EC and checked on the subsequent boot.
205 To compile this driver as a module, choose M here: the
206 module will be called cros_ec_wdt.
208 config DA9052_WATCHDOG
209 tristate "Dialog DA9052 Watchdog"
210 depends on PMIC_DA9052 || COMPILE_TEST
213 Support for the watchdog in the DA9052 PMIC. Watchdog trigger
216 Say Y here to include support for the DA9052 watchdog.
217 Alternatively say M to compile the driver as a module,
218 which will be called da9052_wdt.
220 config DA9055_WATCHDOG
221 tristate "Dialog Semiconductor DA9055 Watchdog"
222 depends on MFD_DA9055 || COMPILE_TEST
225 If you say yes here you get support for watchdog on the Dialog
226 Semiconductor DA9055 PMIC.
228 This driver can also be built as a module. If so, the module
229 will be called da9055_wdt.
231 config DA9063_WATCHDOG
232 tristate "Dialog DA9063 Watchdog"
233 depends on MFD_DA9063 || COMPILE_TEST
237 Support for the watchdog in the DA9063 PMIC.
239 This driver can be built as a module. The module name is da9063_wdt.
241 config DA9062_WATCHDOG
242 tristate "Dialog DA9062/61 Watchdog"
243 depends on MFD_DA9062 || COMPILE_TEST
247 Support for the watchdog in the DA9062 and DA9061 PMICs.
249 This driver can be built as a module. The module name is da9062_wdt.
252 tristate "Watchdog device controlled through GPIO-line"
256 If you say yes here you get support for watchdog device
257 controlled through GPIO-line.
259 config GPIO_WATCHDOG_ARCH_INITCALL
260 bool "Register the watchdog as early as possible"
261 depends on GPIO_WATCHDOG=y
263 In some situations, the default initcall level (module_init)
264 in not early enough in the boot process to avoid the watchdog
266 If you say yes here, the initcall level would be raised to
270 config LENOVO_SE10_WDT
271 tristate "Lenovo SE10 Watchdog"
272 depends on (X86 && DMI) || COMPILE_TEST
273 depends on HAS_IOPORT
276 If you say yes here you get support for the watchdog
277 functionality for the Lenovo SE10 platform.
279 This driver can also be built as a module. If so, the module
280 will be called lenovo-se10-wdt.
282 config MENF21BMC_WATCHDOG
283 tristate "MEN 14F021P00 BMC Watchdog"
284 depends on MFD_MENF21BMC || COMPILE_TEST
288 Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
290 This driver can also be built as a module. If so the module
291 will be called menf21bmc_wdt.
293 config MENZ069_WATCHDOG
294 tristate "MEN 16Z069 Watchdog"
298 Say Y here to include support for the MEN 16Z069 Watchdog.
300 This driver can also be built as a module. If so the module
301 will be called menz069_wdt.
304 tristate "ACPI Watchdog Action Table (WDAT)"
309 This driver adds support for systems with ACPI Watchdog Action
310 Table (WDAT) table. Servers typically have this but it can be
311 found on some desktop machines as well. This driver will take
312 over the native iTCO watchdog driver found on many Intel CPUs.
314 To compile this driver as module, choose M here: the module will
317 config WM831X_WATCHDOG
318 tristate "WM831x watchdog"
319 depends on MFD_WM831X
322 Support for the watchdog in the WM831x AudioPlus PMICs. When
323 the watchdog triggers the system will be reset.
325 config WM8350_WATCHDOG
326 tristate "WM8350 watchdog"
327 depends on MFD_WM8350
330 Support for the watchdog in the WM8350 AudioPlus PMIC. When
331 the watchdog triggers the system will be reset.
333 config XILINX_WATCHDOG
334 tristate "Xilinx Watchdog timer"
338 Watchdog driver for the xps_timebase_wdt IP core.
340 To compile this driver as a module, choose M here: the
341 module will be called of_xilinx_wdt.
343 config XILINX_WINDOW_WATCHDOG
344 tristate "Xilinx window watchdog timer"
346 depends on ARM64 || COMPILE_TEST
349 Window watchdog driver for the versal_wwdt IP core.
350 Window watchdog timer(WWDT) contains closed(first) and
351 open(second) window with 32 bit width. Write to the watchdog
352 timer within predefined window periods of time. This means
353 a period that is not too soon and a period that is not too
354 late. The WWDT has to be restarted within the open window time.
355 If software tries to restart WWDT outside of the open window
356 time period, it generates a reset.
358 To compile this driver as a module, choose M here: the
359 module will be called xilinx_wwdt.
361 config ZIIRAVE_WATCHDOG
362 tristate "Zodiac RAVE Watchdog Timer"
366 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
369 To compile this driver as a module, choose M here: the
370 module will be called ziirave_wdt.
372 config RAVE_SP_WATCHDOG
373 tristate "RAVE SP Watchdog timer"
374 depends on RAVE_SP_CORE
375 depends on NVMEM || !NVMEM
378 Support for the watchdog on RAVE SP device.
381 tristate "Mellanox Watchdog"
382 depends on MELLANOX_PLATFORM || COMPILE_TEST
386 This is the driver for the hardware watchdog on Mellanox systems.
387 If you are going to use it, say Y here, otherwise N.
388 This driver can be used together with the watchdog daemon.
389 It can also watch your kernel to make sure it doesn't freeze,
390 and if it does, it reboots your system after a certain amount of
393 To compile this driver as a module, choose M here: the
394 module will be called mlx-wdt.
396 config SL28CPLD_WATCHDOG
397 tristate "Kontron sl28cpld Watchdog"
398 depends on MFD_SL28CPLD || COMPILE_TEST
401 Say Y here to include support for the watchdog timer
402 on the Kontron sl28 CPLD.
404 To compile this driver as a module, choose M here: the
405 module will be called sl28cpld_wdt.
411 config ARM_SP805_WATCHDOG
412 tristate "ARM SP805 Watchdog"
413 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
416 ARM Primecell SP805 Watchdog timer. This will reboot your system when
417 the timeout is reached.
419 config ARM_SBSA_WATCHDOG
420 tristate "ARM SBSA Generic Watchdog"
422 depends on ARM_ARCH_TIMER
425 ARM SBSA Generic Watchdog has two stage timeouts:
426 the first signal (WS0) is for alerting the system by interrupt,
427 the second one (WS1) is a real hardware reset.
428 More details: ARM DEN0029B - Server Base System Architecture (SBSA)
430 This driver can operate ARM SBSA Generic Watchdog as a single stage
431 or a two stages watchdog, it depends on the module parameter "action".
433 Note: the maximum timeout in the two stages mode is half of that in
434 the single stage mode.
436 To compile this driver as module, choose M here: The module
437 will be called sbsa_gwdt.
439 config ARMADA_37XX_WATCHDOG
440 tristate "Armada 37xx watchdog"
441 depends on ARCH_MVEBU || COMPILE_TEST
446 Say Y here to include support for the watchdog timer found on
447 Marvell Armada 37xx SoCs.
448 To compile this driver as a module, choose M here: the
449 module will be called armada_37xx_wdt.
451 config ASM9260_WATCHDOG
452 tristate "Alphascale ASM9260 watchdog"
453 depends on MACH_ASM9260 || COMPILE_TEST
456 select RESET_CONTROLLER
458 Watchdog timer embedded into Alphascale asm9260 chips. This will
459 reboot your system when the timeout is reached.
461 config AT91RM9200_WATCHDOG
462 tristate "AT91RM9200 watchdog"
463 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
465 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
466 system when the timeout is reached.
468 config AT91SAM9X_WATCHDOG
469 tristate "AT91SAM9X / AT91CAP9 watchdog"
470 depends on ARCH_AT91 || COMPILE_TEST
473 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
474 reboot your system when the timeout is reached.
476 config SAMA5D4_WATCHDOG
477 tristate "Atmel SAMA5D4 Watchdog Timer"
478 depends on ARCH_AT91 || COMPILE_TEST
481 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
482 Its Watchdog Timer Mode Register can be written more than once.
483 This will reboot your system when the timeout is reached.
485 config CADENCE_WATCHDOG
486 tristate "Cadence Watchdog Timer"
490 Say Y here if you want to include support for the watchdog
491 timer in the Xilinx Zynq.
493 config 21285_WATCHDOG
494 tristate "DC21285 watchdog"
495 depends on FOOTBRIDGE
497 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
498 here if you wish to use this. Alternatively say M to compile the
499 driver as a module, which will be called wdt285.
501 This driver does not work on all machines. In particular, early CATS
502 boards have hardware problems that will cause the machine to simply
503 lock up if the watchdog fires.
505 "If in doubt, leave it out" - say N.
508 tristate "NetWinder WB83C977 watchdog"
509 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
510 depends on HAS_IOPORT
512 Say Y here to include support for the WB977 watchdog included in
513 NetWinder machines. Alternatively say M to compile the driver as
514 a module, which will be called wdt977.
516 Not sure? It's safe to say N.
518 config FTWDT010_WATCHDOG
519 tristate "Faraday Technology FTWDT010 watchdog"
520 depends on ARM || COMPILE_TEST
524 Say Y here if to include support for the Faraday Technology
525 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
528 To compile this driver as a module, choose M here: the
529 module will be called ftwdt010_wdt.
531 config IXP4XX_WATCHDOG
532 tristate "IXP4xx Watchdog"
533 depends on ARCH_IXP4XX || (ARM && COMPILE_TEST)
536 Say Y here if to include support for the watchdog timer
537 in the Intel IXP4xx network processors. This driver can
538 be built as a module by choosing M. The module will
539 be called ixp4xx_wdt.
541 Note: The internal IXP4xx watchdog does a soft CPU reset
542 which doesn't reset any peripherals. There are circumstances
543 where the watchdog will fail to reset the board correctly
544 (e.g., if the boot ROM is in an unreadable state).
546 Say N if you are unsure.
548 config S3C2410_WATCHDOG
549 tristate "S3C6410/S5Pv210/Exynos Watchdog"
550 depends on ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST
553 Watchdog timer block in the Samsung S3C64xx, S5Pv210 and Exynos
554 SoCs. This will reboot the system when the timer expires with
555 the watchdog enabled.
557 The driver is limited by the speed of the system's PCLK
558 signal, so with reasonably fast systems (PCLK around 50-66MHz)
559 then watchdog intervals of over approximately 20seconds are
562 Choose Y/M here only if you build for such Samsung SoC.
563 The driver can be built as a module by choosing M, and will
564 be called s3c2410_wdt.
566 config SA1100_WATCHDOG
567 tristate "SA1100/PXA2xx watchdog"
568 depends on ARCH_SA1100 || ARCH_PXA || COMPILE_TEST
570 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
571 reboot your system when timeout is reached.
573 NOTE: once enabled, this timer cannot be disabled.
575 To compile this driver as a module, choose M here: the
576 module will be called sa1100_wdt.
579 tristate "Synopsys DesignWare watchdog"
583 Say Y here if to include support for the Synopsys DesignWare
584 watchdog timer found in many chips.
585 To compile this driver as a module, choose M here: the
586 module will be called dw_wdt.
588 config EP93XX_WATCHDOG
589 tristate "EP93xx Watchdog"
590 depends on ARCH_EP93XX || COMPILE_TEST
593 Say Y here if to include support for the watchdog timer
594 embedded in the Cirrus Logic EP93xx family of devices.
596 To compile this driver as a module, choose M here: the
597 module will be called ep93xx_wdt.
600 tristate "OMAP Watchdog"
601 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
604 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.
605 Say 'Y' here to enable the
606 OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
608 config PNX4008_WATCHDOG
609 tristate "LPC32XX Watchdog"
610 depends on ARCH_LPC32XX || COMPILE_TEST
613 Say Y here if to include support for the watchdog timer
614 in the LPC32XX processor.
615 This driver can be built as a module by choosing M. The module
616 will be called pnx4008_wdt.
618 Say N if you are unsure.
620 config DAVINCI_WATCHDOG
621 tristate "DaVinci watchdog"
622 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
625 Say Y here if to include support for the watchdog timer
626 in the DaVinci DM644x/DM646x or Keystone processors.
627 To compile this driver as a module, choose M here: the
628 module will be called davinci_wdt.
630 NOTE: once enabled, this timer cannot be disabled.
631 Say N if you are unsure.
633 config K3_RTI_WATCHDOG
634 tristate "Texas Instruments K3 RTI watchdog"
635 depends on ARCH_K3 || COMPILE_TEST
638 Say Y here if you want to include support for the K3 watchdog
639 timer (RTI module) available in the K3 generation of processors.
641 config ORION_WATCHDOG
642 tristate "Orion watchdog"
643 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST
647 Say Y here if to include support for the watchdog timer
648 in the Marvell Orion5x and Kirkwood ARM SoCs.
649 To compile this driver as a module, choose M here: the
650 module will be called orion_wdt.
652 config RN5T618_WATCHDOG
653 tristate "Ricoh RN5T618 watchdog"
654 depends on MFD_RN5T618 || COMPILE_TEST
657 If you say yes here you get support for watchdog on the Ricoh
660 This driver can also be built as a module. If so, the module
661 will be called rn5t618_wdt.
663 config SUNXI_WATCHDOG
664 tristate "Allwinner SoCs watchdog support"
665 depends on ARCH_SUNXI || COMPILE_TEST
668 Say Y here to include support for the watchdog timer
670 To compile this driver as a module, choose M here: the
671 module will be called sunxi_wdt.
673 config NPCM7XX_WATCHDOG
674 tristate "Nuvoton NPCM750 watchdog"
675 depends on ARCH_NPCM || COMPILE_TEST
676 default y if ARCH_NPCM7XX
679 Say Y here to include Watchdog timer support for the
680 watchdog embedded into the NPCM7xx.
681 This watchdog is used to reset the system and thus cannot be
682 compiled as a module.
684 config TWL4030_WATCHDOG
685 tristate "TWL4030 Watchdog"
686 depends on TWL4030_CORE
689 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
690 watchdog timer support for TWL4030 chips.
692 config STMP3XXX_RTC_WATCHDOG
693 tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
694 depends on RTC_DRV_STMP || COMPILE_TEST
697 Say Y here to include support for the watchdog timer inside
698 the RTC for the STMP37XX/378X or i.MX23/28 SoC.
699 To compile this driver as a module, choose M here: the
700 module will be called stmp3xxx_rtc_wdt.
702 config TS4800_WATCHDOG
703 tristate "TS-4800 Watchdog"
704 depends on HAS_IOMEM && OF
705 depends on SOC_IMX51 || COMPILE_TEST
709 Technologic Systems TS-4800 has watchdog timer implemented in
710 an external FPGA. Say Y here if you want to support for the
711 watchdog timer on TS-4800 board.
713 config TS72XX_WATCHDOG
714 tristate "TS-72XX SBC Watchdog"
715 depends on MACH_TS72XX || COMPILE_TEST
718 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
719 watchdog timer implemented in a external CPLD chip. Say Y here
720 if you want to support for the watchdog timer on TS-72XX boards.
722 To compile this driver as a module, choose M here: the
723 module will be called ts72xx_wdt.
725 config MAX63XX_WATCHDOG
726 tristate "Max63xx watchdog"
730 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
732 config MAX77620_WATCHDOG
733 tristate "Maxim Max77620 Watchdog Timer"
734 depends on MFD_MAX77620 || MFD_MAX77714 || COMPILE_TEST
737 This is the driver for the Max77620 watchdog timer.
738 Say 'Y' here to enable the watchdog timer support for
739 MAX77620 chips. To compile this driver as a module,
740 choose M here: the module will be called max77620_wdt.
743 tristate "IMX2+ Watchdog"
744 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
748 This is the driver for the hardware watchdog
749 on the Freescale IMX2 and later processors.
750 If you have one of these processors and wish to have
751 watchdog support enabled, say Y, otherwise say N.
753 To compile this driver as a module, choose M here: the
754 module will be called imx2_wdt.
757 tristate "IMX SC Watchdog"
758 depends on HAVE_ARM_SMCCC
759 depends on IMX_SCU || COMPILE_TEST
762 This is the driver for the system controller watchdog
763 on the NXP i.MX SoCs with system controller inside, the
764 watchdog driver will call ARM SMC API and trap into
765 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
766 will request system controller to execute the operations.
767 If you have one of these processors and wish to have
768 watchdog support enabled, say Y, otherwise say N.
770 To compile this driver as a module, choose M here: the
771 module will be called imx_sc_wdt.
774 tristate "IMX7ULP Watchdog"
775 depends on ARCH_MXC || COMPILE_TEST
778 This is the driver for the hardware watchdog on the Freescale
779 IMX7ULP and later processors. If you have one of these
780 processors and wish to have watchdog support enabled,
781 say Y, otherwise say N.
783 To compile this driver as a module, choose M here: the
784 module will be called imx7ulp_wdt.
786 config DB500_WATCHDOG
787 tristate "ST-Ericsson DB800 watchdog"
788 depends on MFD_DB8500_PRCMU
792 Say Y here to include Watchdog timer support for the watchdog
793 existing in the prcmu of ST-Ericsson DB8500 platform.
795 To compile this driver as a module, choose M here: the
796 module will be called db500_wdt.
799 tristate "Retu watchdog"
803 Retu watchdog driver for Nokia Internet Tablets (770, N800,
804 N810). At least on N800 the watchdog cannot be disabled, so
805 this driver is essential and you should enable it.
807 To compile this driver as a module, choose M here: the
808 module will be called retu_wdt.
811 tristate "MOXART watchdog"
812 depends on ARCH_MOXART || COMPILE_TEST
814 Say Y here to include Watchdog timer support for the watchdog
815 existing on the MOXA ART SoC series platforms.
817 To compile this driver as a module, choose M here: the
818 module will be called moxart_wdt.
820 config ST_LPC_WATCHDOG
821 tristate "STMicroelectronics LPC Watchdog"
822 depends on ARCH_STI || COMPILE_TEST
826 Say Y here to include STMicroelectronics Low Power Controller
827 (LPC) based Watchdog timer support.
829 To compile this driver as a module, choose M here: the
830 module will be called st_lpc_wdt.
832 config TEGRA_WATCHDOG
833 tristate "Tegra watchdog"
834 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
837 Say Y here to include support for the watchdog timer
838 embedded in NVIDIA Tegra SoCs.
840 To compile this driver as a module, choose M here: the
841 module will be called tegra_wdt.
844 tristate "QCOM watchdog"
846 depends on ARCH_QCOM || COMPILE_TEST
849 Say Y here to include Watchdog timer support for the watchdog found
850 on QCOM chipsets. Currently supported targets are the MSM8960,
851 APQ8064, and IPQ8064.
853 To compile this driver as a module, choose M here: the
854 module will be called qcom_wdt.
856 config MESON_GXBB_WATCHDOG
857 tristate "Amlogic Meson GXBB SoCs watchdog support"
858 depends on ARCH_MESON || COMPILE_TEST
861 Say Y here to include support for the watchdog timer
862 in Amlogic Meson GXBB SoCs.
863 To compile this driver as a module, choose M here: the
864 module will be called meson_gxbb_wdt.
866 config MESON_WATCHDOG
867 tristate "Amlogic Meson SoCs watchdog support"
868 depends on ARCH_MESON || COMPILE_TEST
871 Say Y here to include support for the watchdog timer
872 in Amlogic Meson SoCs.
873 To compile this driver as a module, choose M here: the
874 module will be called meson_wdt.
876 config MEDIATEK_WATCHDOG
877 tristate "Mediatek SoCs watchdog support"
878 depends on ARCH_MEDIATEK || COMPILE_TEST
879 default ARCH_MEDIATEK
881 select RESET_CONTROLLER
883 Say Y here to include support for the watchdog timer
885 To compile this driver as a module, choose M here: the
886 module will be called mtk_wdt.
888 config DIGICOLOR_WATCHDOG
889 tristate "Conexant Digicolor SoCs watchdog support"
890 depends on ARCH_DIGICOLOR || COMPILE_TEST
893 Say Y here to include support for the watchdog timer
894 in Conexant Digicolor SoCs.
895 To compile this driver as a module, choose M here: the
896 module will be called digicolor_wdt.
898 config ARM_SMC_WATCHDOG
899 tristate "ARM Secure Monitor Call based watchdog support"
900 depends on ARM || ARM64
902 depends on HAVE_ARM_SMCCC
905 Say Y here to include support for a watchdog timer
906 implemented by the EL3 Secure Monitor on ARM platforms.
907 Requires firmware support.
908 To compile this driver as a module, choose M here: the
909 module will be called arm_smc_wdt.
911 config LPC18XX_WATCHDOG
912 tristate "LPC18xx/43xx Watchdog"
913 depends on ARCH_LPC18XX || COMPILE_TEST
917 Say Y here if to include support for the watchdog timer
918 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
920 To compile this driver as a module, choose M here: the
921 module will be called lpc18xx_wdt.
924 tristate "Renesas WDT Watchdog"
925 depends on ARCH_RENESAS || COMPILE_TEST
928 This driver adds watchdog support for the integrated watchdogs in the
929 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
931 config RENESAS_RZAWDT
932 tristate "Renesas RZ/A WDT Watchdog"
933 depends on ARCH_RENESAS || COMPILE_TEST
936 This driver adds watchdog support for the integrated watchdogs in the
937 Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
939 config RENESAS_RZN1WDT
940 tristate "Renesas RZ/N1 watchdog"
941 depends on ARCH_RENESAS || COMPILE_TEST
944 This driver adds watchdog support for the integrated watchdogs in the
945 Renesas RZ/N1 SoCs. These watchdogs can be used to reset a system.
947 config RENESAS_RZG2LWDT
948 tristate "Renesas RZ/G2L WDT Watchdog"
949 depends on ARCH_RZG2L || ARCH_R9A09G011 || COMPILE_TEST
950 depends on PM || COMPILE_TEST
953 This driver adds watchdog support for the integrated watchdogs in the
954 Renesas RZ/G2L SoCs. These watchdogs can be used to reset a system.
956 config RENESAS_RZV2HWDT
957 tristate "Renesas RZ/V2H(P) WDT Watchdog"
958 depends on ARCH_R9A09G057 || COMPILE_TEST
959 depends on PM || COMPILE_TEST
962 This driver adds watchdog support for the integrated watchdogs in the
963 Renesas RZ/V2H(P) SoCs. These watchdogs can be used to reset a system.
965 config ASPEED_WATCHDOG
966 tristate "Aspeed BMC watchdog support"
967 depends on ARCH_ASPEED || COMPILE_TEST
970 Say Y here to include support for the watchdog timer
973 This driver is required to reboot the SoC.
975 To compile this driver as a module, choose M here: the
976 module will be called aspeed_wdt.
978 config STM32_WATCHDOG
979 tristate "STM32 Independent WatchDoG (IWDG) support"
980 depends on ARCH_STM32 || COMPILE_TEST
984 Say Y here to include support for the watchdog timer
987 To compile this driver as a module, choose M here: the
988 module will be called stm32_iwdg.
990 config STPMIC1_WATCHDOG
991 tristate "STPMIC1 PMIC watchdog support"
992 depends on MFD_STPMIC1
995 Say Y here to include watchdog support embedded into STPMIC1 PMIC.
996 If the watchdog timer expires, stpmic1 will shut down all its power
999 To compile this driver as a module, choose M here: the
1000 module will be called spmic1_wdt.
1002 config UNIPHIER_WATCHDOG
1003 tristate "UniPhier watchdog support"
1004 depends on ARCH_UNIPHIER || COMPILE_TEST
1005 depends on OF && MFD_SYSCON
1006 select WATCHDOG_CORE
1008 Say Y here to include support watchdog timer embedded
1009 into the UniPhier system.
1011 To compile this driver as a module, choose M here: the
1012 module will be called uniphier_wdt.
1014 config RTD119X_WATCHDOG
1015 bool "Realtek RTD119x/RTD129x watchdog support"
1016 depends on ARCH_REALTEK || COMPILE_TEST
1018 select WATCHDOG_CORE
1019 default ARCH_REALTEK
1021 Say Y here to include support for the watchdog timer in
1022 Realtek RTD1295 SoCs.
1024 config REALTEK_OTTO_WDT
1025 tristate "Realtek Otto MIPS watchdog support"
1026 depends on MACH_REALTEK_RTL || COMPILE_TEST
1027 depends on COMMON_CLK
1028 select WATCHDOG_CORE
1029 default MACH_REALTEK_RTL
1031 Say Y here to include support for the watchdog timer on Realtek
1032 RTL838x, RTL839x, RTL930x SoCs. This watchdog has pretimeout
1033 notifications and system reset on timeout.
1035 When built as a module this will be called realtek_otto_wdt.
1037 config SPRD_WATCHDOG
1038 tristate "Spreadtrum watchdog support"
1039 depends on ARCH_SPRD || COMPILE_TEST
1040 select WATCHDOG_CORE
1042 Say Y here to include watchdog timer supported
1043 by Spreadtrum system.
1045 config PM8916_WATCHDOG
1046 tristate "QCOM PM8916 pmic watchdog"
1047 depends on OF && MFD_SPMI_PMIC
1048 select WATCHDOG_CORE
1050 Say Y here to include support watchdog timer embedded into the
1053 config VISCONTI_WATCHDOG
1054 tristate "Toshiba Visconti series watchdog support"
1055 depends on ARCH_VISCONTI || COMPILE_TEST
1056 select WATCHDOG_CORE
1058 Say Y here to include support for the watchdog timer in Toshiba
1061 config MSC313E_WATCHDOG
1062 tristate "MStar MSC313e watchdog"
1063 depends on ARCH_MSTARV7 || COMPILE_TEST
1064 select WATCHDOG_CORE
1066 Say Y here to include support for the Watchdog timer embedded
1067 into MStar MSC313e chips. This will reboot your system when the
1070 To compile this driver as a module, choose M here: the
1071 module will be called msc313e_wdt.
1073 config APPLE_WATCHDOG
1074 tristate "Apple SoC watchdog"
1075 depends on ARCH_APPLE || COMPILE_TEST
1076 select WATCHDOG_CORE
1078 Say Y here to include support for the Watchdog found in Apple
1079 SoCs such as the M1. Next to the common watchdog features this
1080 driver is also required in order to reboot these SoCs.
1082 To compile this driver as a module, choose M here: the
1083 module will be called apple_wdt.
1085 config SUNPLUS_WATCHDOG
1086 tristate "Sunplus watchdog support"
1087 depends on ARCH_SUNPLUS || COMPILE_TEST
1088 select WATCHDOG_CORE
1090 Say Y here to include support for the watchdog timer
1093 To compile this driver as a module, choose M here: the
1094 module will be called sunplus_wdt.
1096 # X86 (i386 + ia64 + x86_64) Architecture
1099 tristate "Acquire SBC Watchdog Timer"
1102 This is the driver for the hardware watchdog on Single Board
1103 Computers produced by Acquire Inc (and others). This watchdog
1104 simply watches your kernel to make sure it doesn't freeze, and if
1105 it does, it reboots your computer after a certain amount of time.
1107 To compile this driver as a module, choose M here: the
1108 module will be called acquirewdt.
1110 Most people will say N.
1112 config ADVANTECH_WDT
1113 tristate "Advantech SBC Watchdog Timer"
1114 depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1116 If you are configuring a Linux kernel for the Advantech single-board
1117 computer, say `Y' here to support its built-in watchdog timer
1118 feature. More information can be found at
1119 <https://www.advantech.com.tw/products/>
1121 config ADVANTECH_EC_WDT
1122 tristate "Advantech Embedded Controller Watchdog Timer"
1123 depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1125 select WATCHDOG_CORE
1127 This driver supports Advantech products with ITE based Embedded Controller.
1128 It does not support Advantech products with other ECs or without EC.
1131 tristate "ALi M1535 PMU Watchdog Timer"
1132 depends on (X86 || COMPILE_TEST) && PCI
1134 This is the driver for the hardware watchdog on the ALi M1535 PMU.
1136 To compile this driver as a module, choose M here: the
1137 module will be called alim1535_wdt.
1139 Most people will say N.
1142 tristate "ALi M7101 PMU Computer Watchdog"
1145 This is the driver for the hardware watchdog on the ALi M7101 PMU
1146 as used in the x86 Cobalt servers and also found in some
1147 SPARC Netra servers too.
1149 To compile this driver as a module, choose M here: the
1150 module will be called alim7101_wdt.
1152 Most people will say N.
1155 tristate "Congatec Board Controller Watchdog Timer"
1157 select WATCHDOG_CORE
1159 Enables watchdog timer support for the Congatec Board Controller.
1161 This driver can also be built as a module. If so, the module will be
1165 tristate "WinSystems EBC-C384 Watchdog Timer"
1166 depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1168 select WATCHDOG_CORE
1170 Enables watchdog timer support for the watchdog timer on the
1171 WinSystems EBC-C384 motherboard. The timeout may be configured via
1172 the timeout module parameter.
1175 tristate "Exar Watchdog Timer"
1176 depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1177 select WATCHDOG_CORE
1179 Enables watchdog timer support for the watchdog timer present
1180 in some Exar/MaxLinear UART chips like the XR28V38x.
1182 To compile this driver as a module, choose M here: the
1183 module will be called exar_wdt.
1186 tristate "Fintek F718xx, F818xx Super I/O Watchdog"
1187 depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1188 select WATCHDOG_CORE
1190 This is the driver for the hardware watchdog on the Fintek F71808E,
1191 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and
1192 F81866 Super I/O controllers.
1194 You can compile this driver directly into the kernel, or use
1195 it as a module. The module will be called f71808e_wdt.
1198 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
1199 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT
1200 select WATCHDOG_CORE
1202 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
1203 (Total Cost of Ownership) timer is a watchdog timer that will reboot
1204 the machine after its expiration. The expiration time can be
1205 configured with the "heartbeat" parameter.
1207 To compile this driver as a module, choose M here: the
1208 module will be called sp5100_tco.
1211 tristate "AMD Geode CS5535/CS5536 Watchdog"
1212 depends on CS5535_MFGPT
1214 This driver enables a watchdog capability built into the
1215 CS5535/CS5536 companion chips for the AMD Geode GX and LX
1216 processors. This watchdog watches your kernel to make sure
1217 it doesn't freeze, and if it does, it reboots your computer after
1218 a certain amount of time.
1220 You can compile this driver directly into the kernel, or use
1221 it as a module. The module will be called geodewdt.
1224 tristate "AMD Elan SC520 processor Watchdog"
1225 depends on MELAN || COMPILE_TEST
1227 This is the driver for the hardware watchdog built in to the
1228 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
1229 This watchdog simply watches your kernel to make sure it doesn't
1230 freeze, and if it does, it reboots your computer after a certain
1233 You can compile this driver directly into the kernel, or use
1234 it as a module. The module will be called sc520_wdt.
1236 config SBC_FITPC2_WATCHDOG
1237 tristate "Compulab SBC-FITPC2 watchdog"
1238 depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1240 This is the driver for the built-in watchdog timer on the fit-PC2,
1241 fit-PC2i, CM-iAM single-board computers made by Compulab.
1243 It's possible to enable the watchdog timer either from BIOS (F2) or
1245 When the "Watchdog Timer Value" is enabled one can set 31-255 seconds
1248 Entering BIOS setup temporarily disables watchdog operation regardless
1249 of current state, so system will not be restarted while user is in
1252 Once the watchdog is enabled the system will be restarted every
1253 "Watchdog Timer Value" period, so to prevent it user can restart or
1254 disable the watchdog.
1256 To compile this driver as a module, choose M here: the
1257 module will be called sbc_fitpc2_wdt.
1259 Most people will say N.
1262 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1263 depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1265 Enable support for the watchdog timer on the Eurotech CPU-1220 and
1266 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
1267 information are at <http://www.eurotech.it/>.
1270 tristate "IB700 SBC Watchdog Timer"
1271 depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1273 This is the driver for the hardware watchdog on the IB700 Single
1274 Board Computer produced by TMC Technology (www.tmc-uk.com). This
1275 watchdog simply watches your kernel to make sure it doesn't freeze,
1276 and if it does, it reboots your computer after a certain amount of time.
1278 This driver is like the WDT501 driver but for slightly different
1281 To compile this driver as a module, choose M here: the
1282 module will be called ib700wdt.
1284 Most people will say N.
1287 tristate "IBM Automatic Server Restart"
1288 depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1290 This is the driver for the IBM Automatic Server Restart watchdog
1291 timer built-in into some eServer xSeries machines.
1293 To compile this driver as a module, choose M here: the
1294 module will be called ibmasr.
1297 tristate "ICP Single Board Computer Watchdog Timer"
1298 depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1300 This is a driver for the hardware watchdog on the ICP Single
1301 Board Computer. This driver is working on (at least) the following
1302 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1304 To compile this driver as a module, choose M here: the
1305 module will be called wafer5823wdt.
1308 tristate "Intel 6300ESB Timer/Watchdog"
1310 select WATCHDOG_CORE
1312 Hardware driver for the watchdog timer built into the Intel
1313 6300ESB controller hub.
1315 To compile this driver as a module, choose M here: the
1316 module will be called i6300esb.
1319 tristate "Intel Atom E6xx Watchdog"
1320 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT
1321 select WATCHDOG_CORE
1325 Hardware driver for the watchdog timer built into the Intel
1326 Atom E6XX (TunnelCreek) processor.
1328 To compile this driver as a module, choose M here: the
1329 module will be called ie6xx_wdt.
1331 config INTEL_MID_WATCHDOG
1332 tristate "Intel MID Watchdog Timer"
1333 depends on X86_INTEL_MID
1334 select WATCHDOG_CORE
1336 Watchdog timer driver built into the Intel SCU for Intel MID
1339 This driver currently supports only the watchdog evolution
1340 implementation in SCU, available for Merrifield generation.
1342 To compile this driver as a module, choose M here.
1345 tristate "Intel TCO Timer/Watchdog"
1346 depends on X86 && PCI
1347 select WATCHDOG_CORE
1348 depends on I2C || I2C=n
1349 depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT
1350 depends on HAS_IOPORT # for I2C_I801
1351 select LPC_ICH if !EXPERT
1352 select I2C_I801 if !EXPERT && I2C
1354 Hardware driver for the intel TCO timer based watchdog devices.
1355 These drivers are included in the Intel 82801 I/O Controller
1356 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1359 The TCO (Total Cost of Ownership) timer is a watchdog timer
1360 that will reboot the machine after its second expiration. The
1361 expiration time can be configured with the "heartbeat" parameter.
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".
1368 To compile this driver as a module, choose M here: the
1369 module will be called iTCO_wdt.
1371 config ITCO_VENDOR_SUPPORT
1372 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1375 Add vendor specific support to the intel TCO timer based watchdog
1376 devices. At this moment we only have additional support for some
1377 SuperMicro Inc. motherboards.
1380 tristate "IT8712F (Smart Guardian) Watchdog Timer"
1381 depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1383 This is the driver for the built-in watchdog timer on the IT8712F
1384 Super I/0 chipset used on many motherboards.
1386 If the driver does not work, then make sure that the game port in
1387 the BIOS is enabled.
1389 To compile this driver as a module, choose M here: the
1390 module will be called it8712f_wdt.
1393 tristate "IT87 Watchdog Timer"
1394 depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1395 select WATCHDOG_CORE
1397 This is the driver for the hardware watchdog on the ITE IT8607,
1398 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1399 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1400 IT8783 Super I/O chips.
1402 This watchdog simply watches your kernel to make sure it doesn't
1403 freeze, and if it does, it reboots your computer after a certain
1406 To compile this driver as a module, choose M here: the module will
1410 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1411 select WATCHDOG_CORE
1412 depends on (ARM64 || X86 || COMPILE_TEST) && PCI
1414 A software monitoring watchdog and NMI handling driver. This driver
1415 will detect lockups and provide a stack trace. This is a driver that
1416 will only load on an HP ProLiant system with a minimum of iLO2 support.
1417 To compile this driver as a module, choose M here: the module will be
1420 config HPWDT_NMI_DECODING
1421 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1422 depends on X86 && HP_WATCHDOG
1425 Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1426 "Generate NMI to System" virtual button. When an NMI is claimed
1427 by the driver, panic is called.
1430 tristate "Kontron COM Watchdog Timer"
1431 depends on MFD_KEMPLD
1432 select WATCHDOG_CORE
1434 Support for the PLD watchdog on some Kontron ETX and COMexpress
1435 (ETXexpress) modules
1437 This driver can also be built as a module. If so, the module will be
1441 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1442 depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1444 This is a driver for National Semiconductor PC87307/PC97307 hardware
1445 watchdog cards as found on the SC1200. This watchdog is mainly used
1446 for power management purposes and can be used to power down the device
1447 during inactivity periods (includes interrupt activity monitoring).
1449 To compile this driver as a module, choose M here: the
1450 module will be called sc1200wdt.
1452 Most people will say N.
1455 tristate "National Semiconductor SCx200 Watchdog"
1456 depends on SCx200 && PCI
1458 Enable the built-in watchdog timer support on the National
1459 Semiconductor SCx200 processors.
1461 If compiled as a module, it will be called scx200_wdt.
1464 tristate "NS PC87413 watchdog"
1465 depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1467 This is the driver for the hardware watchdog on the PC87413 chipset
1468 This watchdog simply watches your kernel to make sure it doesn't
1469 freeze, and if it does, it reboots your computer after a certain
1472 To compile this driver as a module, choose M here: the
1473 module will be called pc87413_wdt.
1475 Most people will say N.
1478 tristate "nVidia TCO Timer/Watchdog"
1479 depends on (X86 || COMPILE_TEST) && PCI && HAS_IOPORT
1481 Hardware driver for the TCO timer built into the nVidia Hub family
1482 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
1483 watchdog timer that will reboot the machine after its second
1484 expiration. The expiration time can be configured with the
1485 "heartbeat" parameter.
1487 On some motherboards the driver may fail to reset the chipset's
1488 NO_REBOOT flag which prevents the watchdog from rebooting the
1489 machine. If this is the case you will get a kernel message like
1490 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1492 To compile this driver as a module, choose M here: the
1493 module will be called nv_tco.
1496 tristate "RDC R-321x SoC watchdog"
1497 depends on X86_RDC321X || COMPILE_TEST
1500 This is the driver for the built in hardware watchdog
1501 in the RDC R-321x SoC.
1503 To compile this driver as a module, choose M here: the
1504 module will be called rdc321x_wdt.
1507 tristate "SBC-60XX Watchdog Timer"
1508 depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1510 This driver can be used with the watchdog timer found on some
1511 single board computers, namely the 6010 PII based computer.
1512 It may well work with other cards. It reads port 0x443 to enable
1513 and re-set the watchdog timer, and reads port 0x45 to disable
1514 the watchdog. If you have a card that behave in similar ways,
1515 you can probably make this driver work with your card as well.
1517 You can compile this driver directly into the kernel, or use
1518 it as a module. The module will be called sbc60xxwdt.
1521 tristate "SBC8360 Watchdog Timer"
1522 depends on X86_32 && HAS_IOPORT
1525 This is the driver for the hardware watchdog on the SBC8360 Single
1526 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1528 To compile this driver as a module, choose M here: the
1529 module will be called sbc8360.
1531 Most people will say N.
1534 tristate "SBC Nano 7240 Watchdog Timer"
1535 depends on X86_32 && HAS_IOPORT
1537 This is the driver for the hardware watchdog found on the IEI
1538 single board computers EPIC Nano 7240 (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
1543 To compile this driver as a module, choose M here: the
1544 module will be called sbc7240_wdt.
1547 tristate "SMA CPU5 Watchdog"
1548 depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1551 To compile this driver as a module, choose M here: the
1552 module will be called cpu5wdt.
1554 config SMSC_SCH311X_WDT
1555 tristate "SMSC SCH311X Watchdog Timer"
1556 depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1558 This is the driver for the hardware watchdog timer on the
1559 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1560 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1563 To compile this driver as a module, choose M here: the
1564 module will be called sch311x_wdt.
1566 config SMSC37B787_WDT
1567 tristate "Winbond SMsC37B787 Watchdog Timer"
1568 depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1570 This is the driver for the hardware watchdog component on the
1571 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1572 from Vision Systems and maybe others.
1574 This watchdog simply watches your kernel to make sure it doesn't
1575 freeze, and if it does, it reboots your computer after a certain
1578 Usually a userspace daemon will notify the kernel WDT driver that
1579 userspace is still alive, at regular intervals.
1581 To compile this driver as a module, choose M here: the
1582 module will be called smsc37b787_wdt.
1584 Most people will say N.
1587 tristate "TQ-Systems TQMX86 Watchdog Timer"
1588 depends on X86 || COMPILE_TEST
1589 select WATCHDOG_CORE
1591 This is the driver for the hardware watchdog timer in the TQMX86 IO
1592 controller found on some of their ComExpress Modules.
1594 To compile this driver as a module, choose M here; the module
1595 will be called tqmx86_wdt.
1597 Most people will say N.
1600 tristate "VIA Watchdog Timer"
1601 depends on (X86 || COMPILE_TEST) && PCI
1602 select WATCHDOG_CORE
1604 This is the driver for the hardware watchdog timer on VIA
1605 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1607 To compile this driver as a module, choose M here; the module
1608 will be called via_wdt.
1610 Most people will say N.
1613 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1614 depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1615 select WATCHDOG_CORE
1617 This is the driver for the hardware watchdog on the following
1619 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1633 This watchdog simply watches your kernel to make sure it doesn't
1634 freeze, and if it does, it reboots your computer after a certain
1637 To compile this driver as a module, choose M here: the
1638 module will be called w83627hf_wdt.
1640 Most people will say N.
1643 tristate "W83877F (EMACS) Watchdog Timer"
1644 depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1646 This is the driver for the hardware watchdog on the W83877F chipset
1647 as used in EMACS PC-104 motherboards (and likely others). This
1648 watchdog simply watches your kernel to make sure it doesn't freeze,
1649 and if it does, it reboots your computer after a certain amount of
1652 To compile this driver as a module, choose M here: the
1653 module will be called w83877f_wdt.
1655 Most people will say N.
1658 tristate "W83977F (PCM-5335) Watchdog Timer"
1659 depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1661 This is the driver for the hardware watchdog on the W83977F I/O chip
1662 as used in AAEON's PCM-5335 SBC (and likely others). This
1663 watchdog simply watches your kernel to make sure it doesn't freeze,
1664 and if it does, it reboots your computer after a certain amount of
1667 To compile this driver as a module, choose M here: the
1668 module will be called w83977f_wdt.
1671 tristate "ZF MachZ Watchdog"
1672 depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1674 If you are using a ZF Micro MachZ processor, say Y here, otherwise
1675 N. This is the driver for the watchdog timer built-in on that
1676 processor using ZF-Logic interface. This watchdog simply watches
1677 your kernel to make sure it doesn't freeze, and if it does, it
1678 reboots your computer after a certain amount of time.
1680 To compile this driver as a module, choose M here: the
1681 module will be called machzwd.
1683 config SBC_EPX_C3_WATCHDOG
1684 tristate "Winsystems SBC EPX-C3 watchdog"
1685 depends on (X86 || COMPILE_TEST) && HAS_IOPORT
1687 This is the driver for the built-in watchdog timer on the EPX-C3
1688 Single-board computer made by Winsystems, Inc.
1690 *Note*: This hardware watchdog is not probeable and thus there
1691 is no way to know if writing to its IO address will corrupt
1692 your system or have any real effect. The only way to be sure
1693 that this driver does what you want is to make sure you
1694 are running it on an EPX-C3 from Winsystems with the watchdog
1695 timer at IO address 0x1ee and 0x1ef. It will write to both those
1696 IO ports. Basically, the assumption is made that if you compile
1697 this driver into your kernel and/or load it as a module, that you
1698 know what you are doing and that you are in fact running on an
1701 To compile this driver as a module, choose M here: the
1702 module will be called sbc_epx_c3.
1704 config INTEL_MEI_WDT
1705 tristate "Intel MEI iAMT Watchdog"
1706 depends on INTEL_MEI && X86
1707 select WATCHDOG_CORE
1709 A device driver for the Intel MEI iAMT watchdog.
1711 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1712 Whenever the OS hangs or crashes, iAMT will send an event
1713 to any subscriber to this event. The watchdog doesn't reset the
1716 To compile this driver as a module, choose M here:
1717 the module will be called mei_wdt.
1720 tristate "NI 903x/913x Watchdog"
1721 depends on X86 && ACPI
1722 select WATCHDOG_CORE
1724 This is the driver for the watchdog timer on the National Instruments
1725 903x/913x real-time controllers.
1727 To compile this driver as a module, choose M here: the module will be
1731 tristate "NIC7018 Watchdog"
1732 depends on X86 && ACPI
1733 select WATCHDOG_CORE
1735 Support for National Instruments NIC7018 Watchdog.
1737 To compile this driver as a module, choose M here: the module will be
1740 config SIEMENS_SIMATIC_IPC_WDT
1741 tristate "Siemens Simatic IPC Watchdog"
1742 depends on SIEMENS_SIMATIC_IPC && PCI
1744 select WATCHDOG_CORE
1747 This driver adds support for several watchdogs found in Industrial
1750 To compile this driver as a module, choose M here: the module will be
1751 called simatic-ipc-wdt.
1755 config M54xx_WATCHDOG
1756 tristate "MCF54xx watchdog support"
1759 To compile this driver as a module, choose M here: the
1760 module will be called m54xx_wdt.
1762 # MicroBlaze Architecture
1767 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1768 depends on ATH79 || (ARM && COMPILE_TEST)
1770 Hardware driver for the built-in watchdog timer on the Atheros
1771 AR71XX/AR724X/AR913X SoCs.
1774 tristate "Broadcom BCM47xx Watchdog Timer"
1775 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1776 select WATCHDOG_CORE
1778 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1781 tristate "IDT RC32434 SoC Watchdog Timer"
1782 depends on MIKROTIK_RB532
1784 Hardware driver for the IDT RC32434 SoC built-in
1787 To compile this driver as a module, choose M here: the
1788 module will be called rc32434_wdt.
1791 tristate "Indy/I2 Hardware Watchdog"
1792 depends on SGI_HAS_INDYDOG
1794 Hardware driver for the Indy's/I2's watchdog. This is a
1795 watchdog timer that will reboot the machine after a 60 second
1796 timer expired and no process has written to /dev/watchdog during
1800 tristate "Ingenic jz4740 SoC hardware watchdog"
1801 depends on MIPS || COMPILE_TEST
1802 depends on COMMON_CLK
1803 select WATCHDOG_CORE
1806 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1809 tristate "MTX-1 Hardware Watchdog"
1810 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1812 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1813 will reboot the machine after a 100 seconds timer expired.
1816 tristate "Sibyte SoC hardware watchdog"
1819 Watchdog driver for the built in watchdog hardware in Sibyte
1820 SoC processors. There are apparently two watchdog timers
1821 on such processors; this driver supports only the first one,
1822 because currently Linux only supports exporting one watchdog
1825 To compile this driver as a loadable module, choose M here.
1826 The module will be called sb_wdog.
1829 tristate "Toshiba TXx9 Watchdog Timer"
1830 depends on CPU_TX49XX || (MIPS && COMPILE_TEST)
1831 select WATCHDOG_CORE
1833 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1836 tristate "Cavium OCTEON SOC family Watchdog Timer"
1837 depends on CAVIUM_OCTEON_SOC
1839 select WATCHDOG_CORE
1840 select EXPORT_UASM if OCTEON_WDT = m
1842 Hardware driver for OCTEON's on chip watchdog timer.
1843 Enables the watchdog for all cores running Linux. It
1844 installs a NMI handler and pokes the watchdog based on an
1845 interrupt. On first expiration of the watchdog, the
1846 interrupt handler pokes it. The second expiration causes an
1847 NMI that prints a message. The third expiration causes a
1850 When userspace has /dev/watchdog open, no poking is done
1851 from the first interrupt, it is then only poked when the
1854 config MARVELL_GTI_WDT
1855 tristate "Marvell GTI Watchdog driver"
1856 depends on ARCH_THUNDER || (COMPILE_TEST && 64BIT)
1858 select WATCHDOG_CORE
1860 Marvell GTI hardware supports watchdog timer. First timeout
1861 works as watchdog pretimeout and installed interrupt handler
1862 will be called on first timeout. Hardware can generate interrupt
1863 to SCP on second timeout but it is not enabled, so second
1864 timeout is ignored. If device poke does not happen then system
1865 will reboot on third timeout.
1868 tristate "Broadcom BCM2835 hardware watchdog"
1869 depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1870 select WATCHDOG_CORE
1872 Watchdog driver for the built in watchdog hardware in Broadcom
1875 To compile this driver as a loadable module, choose M here.
1876 The module will be called bcm2835_wdt.
1879 tristate "BCM Kona Watchdog"
1880 depends on ARCH_BCM_MOBILE || COMPILE_TEST
1881 select WATCHDOG_CORE
1883 Support for the watchdog timer on the following Broadcom BCM281xx
1884 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1887 Say 'Y' or 'M' here to enable the driver. The module will be called
1890 config BCM_KONA_WDT_DEBUG
1891 bool "DEBUGFS support for BCM Kona Watchdog"
1892 depends on BCM_KONA_WDT || COMPILE_TEST
1894 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1895 access to the driver's internal data structures as well as watchdog
1896 timer hardware registres.
1898 If in doubt, say 'N'.
1901 tristate "BCM63xx/BCM7038 Watchdog"
1902 select WATCHDOG_CORE
1903 depends on HAS_IOMEM
1904 depends on ARCH_BCMBCA || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || COMPILE_TEST
1906 Watchdog driver for the built-in hardware in Broadcom 7038 and
1907 later SoCs used in set-top boxes. BCM7038 was made public
1908 during the 2004 CES, and since then, many Broadcom chips use this
1909 watchdog block, including some cable modem chips and DSL (63xx)
1913 tristate "Imagination Technologies PDC Watchdog Timer"
1914 depends on HAS_IOMEM
1915 depends on MIPS || COMPILE_TEST
1916 select WATCHDOG_CORE
1918 Driver for Imagination Technologies PowerDown Controller
1921 To compile this driver as a loadable module, choose M here.
1922 The module will be called imgpdc_wdt.
1925 tristate "Lantiq SoC watchdog"
1927 select WATCHDOG_CORE
1929 Hardware driver for the Lantiq SoC Watchdog Timer.
1931 config LOONGSON1_WDT
1932 tristate "Loongson1 SoC hardware watchdog"
1933 depends on MACH_LOONGSON32 || COMPILE_TEST
1934 select WATCHDOG_CORE
1936 Hardware driver for the Loongson1 SoC Watchdog Timer.
1939 tristate "Ralink SoC watchdog"
1940 select WATCHDOG_CORE
1943 Hardware driver for the Ralink SoC Watchdog Timer.
1946 tristate "HPE GXP watchdog support"
1947 depends on ARCH_HPE_GXP || COMPILE_TEST
1948 select WATCHDOG_CORE
1950 Say Y here to include support for the watchdog timer
1953 To compile this driver as a module, choose M here.
1954 The module will be called gxp-wdt.
1957 tristate "Mediatek SoC watchdog"
1958 select WATCHDOG_CORE
1961 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST
1963 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1966 tristate "Microchip PIC32 hardware watchdog"
1967 select WATCHDOG_CORE
1968 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1970 Watchdog driver for the built in watchdog hardware in a PIC32.
1972 Configuration bits must be set appropriately for the watchdog to be
1973 controlled by this driver.
1975 To compile this driver as a loadable module, choose M here.
1976 The module will be called pic32-wdt.
1979 tristate "Microchip PIC32 Deadman Timer"
1980 select WATCHDOG_CORE
1981 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1983 Watchdog driver for PIC32 instruction fetch counting timer. This
1984 specific timer is typically be used in mission critical and safety
1985 critical applications, where any single failure of the software
1986 functionality and sequencing must be detected.
1988 To compile this driver as a loadable module, choose M here.
1989 The module will be called pic32-dmt.
1991 # PARISC Architecture
1993 # POWERPC Architecture
1996 tristate "GE Watchdog Timer"
1999 Watchdog timer found in a number of GE single board computers.
2002 bool "MPC52xx Watchdog Timer"
2003 depends on PPC_MPC52xx || COMPILE_TEST
2005 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
2008 tristate "MPC8xxx Platform Watchdog Timer"
2009 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
2010 select WATCHDOG_CORE
2012 This driver is for a SoC level watchdog that exists on some
2013 Freescale PowerPC processors. So far this driver supports:
2018 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
2021 tristate "PIKA FPGA Watchdog"
2022 depends on WARP || (PPC64 && COMPILE_TEST)
2025 This enables the watchdog in the PIKA FPGA. Currently used on
2029 tristate "PowerPC Book-E Watchdog Timer"
2030 depends on BOOKE || 4xx
2031 select WATCHDOG_CORE
2033 Watchdog driver for PowerPC Book-E chips, such as the Freescale
2034 MPC85xx SOCs and the IBM PowerPC 440.
2036 Please see Documentation/watchdog/watchdog-api.rst for
2039 config BOOKE_WDT_DEFAULT_TIMEOUT
2040 int "PowerPC Book-E Watchdog Timer Default Timeout"
2041 depends on BOOKE_WDT
2042 default 38 if PPC_E500
2043 range 0 63 if PPC_E500
2044 default 3 if !PPC_E500
2045 range 0 3 if !PPC_E500
2047 Select the default watchdog timer period to be used by the PowerPC
2048 Book-E watchdog driver. A watchdog "event" occurs when the bit
2049 position represented by this number transitions from zero to one.
2051 For Freescale Book-E processors, this is a number between 0 and 63.
2052 For other Book-E processors, this is a number between 0 and 3.
2054 The value can be overridden by the wdt_period command-line parameter.
2057 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
2058 select WATCHDOG_CORE
2059 depends on GPIOLIB || COMPILE_TEST
2061 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
2063 The driver can also be built as a module. If so, the module will be
2066 If unsure select N here.
2068 # PPC64 Architecture
2071 tristate "POWER Architecture Platform Watchdog Timer"
2072 depends on PPC_PSERIES
2073 select WATCHDOG_CORE
2075 Driver for virtual watchdog timers provided by PAPR
2076 hypervisors (e.g. PowerVM, KVM).
2078 config WATCHDOG_RTAS
2079 tristate "RTAS watchdog"
2082 This driver adds watchdog support for the RTAS watchdog.
2084 To compile this driver as a module, choose M here. The module
2085 will be called wdrtas.
2087 # RISC-V Architecture
2089 config STARFIVE_WATCHDOG
2090 tristate "StarFive Watchdog support"
2091 depends on ARCH_STARFIVE || COMPILE_TEST
2092 select WATCHDOG_CORE
2093 default ARCH_STARFIVE
2095 Say Y here to support the watchdog of StarFive JH7100 and JH7110
2096 SoC. This driver can also be built as a module if choose M.
2100 config DIAG288_WATCHDOG
2101 tristate "System z diag288 Watchdog"
2103 select WATCHDOG_CORE
2105 IBM s/390 and zSeries machines running under z/VM 5.1 or later
2106 provide a virtual watchdog timer to their guest that cause a
2107 user define Control Program command to be executed after a
2109 LPAR provides a very similar interface. This driver handles
2112 To compile this driver as a module, choose M here. The module
2113 will be called diag288_wdt.
2115 # SUPERH (sh + sh64) Architecture
2118 tristate "SuperH Watchdog"
2119 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
2120 select WATCHDOG_CORE
2122 This driver adds watchdog support for the integrated watchdog in the
2123 SuperH processors. If you have one of these processors and wish
2124 to have watchdog support enabled, say Y, otherwise say N.
2126 As a side note, saying Y here will automatically boost HZ to 1000
2127 so that the timer has a chance to clear the overflow counter. On
2128 slower systems (such as the SH-2 and SH-3) this will likely yield
2129 some performance issues. As such, the WDT should be avoided here
2130 unless it is absolutely necessary.
2132 To compile this driver as a module, choose M here: the
2133 module will be called shwdt.
2135 # SPARC Architecture
2137 # SPARC64 Architecture
2139 config WATCHDOG_CP1XXX
2140 tristate "CP1XXX Hardware Watchdog support"
2141 depends on SPARC64 && PCI
2143 This is the driver for the hardware watchdog timers present on
2144 Sun Microsystems CompactPCI models CP1400 and CP1500.
2146 To compile this driver as a module, choose M here: the
2147 module will be called cpwatchdog.
2149 If you do not have a CompactPCI model CP1400 or CP1500, or
2150 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
2151 you should say N to this option.
2154 tristate "RIO Hardware Watchdog support"
2155 depends on SPARC64 && PCI
2157 Say Y here to support the hardware watchdog capability on Sun RIO
2158 machines. The watchdog timeout period is normally one minute but
2159 can be changed with a boot-time parameter.
2161 config WATCHDOG_SUN4V
2162 tristate "Sun4v Watchdog support"
2163 select WATCHDOG_CORE
2166 Say Y here to support the hypervisor watchdog capability embedded
2167 in the SPARC sun4v architecture.
2169 To compile this driver as a module, choose M here. The module will
2170 be called sun4v_wdt.
2172 # XTENSA Architecture
2177 tristate "Xen Watchdog support"
2179 select WATCHDOG_CORE
2181 Say Y here to support the hypervisor watchdog capability provided
2182 by Xen 4.0 and newer. The watchdog timeout period is normally one
2183 minute but can be changed with a boot-time parameter.
2186 tristate "UML watchdog"
2187 depends on UML || COMPILE_TEST
2190 # ISA-based Watchdog Cards
2193 comment "ISA-based Watchdog Cards"
2197 tristate "Berkshire Products ISA-PC Watchdog"
2200 This is the driver for the Berkshire Products ISA-PC Watchdog card.
2201 This card simply watches your kernel to make sure it doesn't freeze,
2202 and if it does, it reboots your computer after a certain amount of
2203 time. This driver is like the WDT501 driver but for different
2204 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>.
2205 The PC watchdog cards can be ordered from <http://www.berkprod.com/>.
2207 To compile this driver as a module, choose M here: the
2208 module will be called pcwd.
2210 Most people will say N.
2213 tristate "Mixcom Watchdog"
2216 This is a driver for the Mixcom hardware watchdog cards. This
2217 watchdog simply watches your kernel to make sure it doesn't freeze,
2218 and if it does, it reboots your computer after a certain amount of
2221 To compile this driver as a module, choose M here: the
2222 module will be called mixcomwd.
2224 Most people will say N.
2227 tristate "WDT Watchdog timer"
2230 If you have a WDT500P or WDT501P watchdog board, say Y here,
2231 otherwise N. It is not possible to probe for this board, which means
2232 that you have to inform the kernel about the IO port and IRQ that
2233 is needed (you can do this via the io and irq parameters)
2235 To compile this driver as a module, choose M here: the
2236 module will be called wdt.
2239 # PCI-based Watchdog Cards
2242 comment "PCI-based Watchdog Cards"
2245 config PCIPCWATCHDOG
2246 tristate "Berkshire Products PCI-PC Watchdog"
2247 depends on PCI && HAS_IOPORT
2249 This is the driver for the Berkshire Products PCI-PC Watchdog card.
2250 This card simply watches your kernel to make sure it doesn't freeze,
2251 and if it does, it reboots your computer after a certain amount of
2252 time. The card can also monitor the internal temperature of the PC.
2253 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2255 To compile this driver as a module, choose M here: the
2256 module will be called pcwd_pci.
2258 Most people will say N.
2261 tristate "PCI-WDT500/501 Watchdog timer"
2262 depends on PCI && HAS_IOPORT
2264 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2266 If you have a PCI-WDT501 watchdog board then you can enable the
2267 temperature sensor by setting the type parameter to 501.
2269 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2270 can do this via the tachometer parameter. Only do this if you have a
2271 fan tachometer actually set up.
2273 To compile this driver as a module, choose M here: the
2274 module will be called wdt_pci.
2277 # USB-based Watchdog Cards
2280 comment "USB-based Watchdog Cards"
2283 config USBPCWATCHDOG
2284 tristate "Berkshire Products USB-PC Watchdog"
2287 This is the driver for the Berkshire Products USB-PC Watchdog card.
2288 This card simply watches your kernel to make sure it doesn't freeze,
2289 and if it does, it reboots your computer after a certain amount of
2290 time. The card can also monitor the internal temperature of the PC.
2291 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2293 To compile this driver as a module, choose M here: the
2294 module will be called pcwd_usb.
2296 Most people will say N.
2298 config KEEMBAY_WATCHDOG
2299 tristate "Intel Keem Bay SoC non-secure watchdog"
2300 depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST)
2301 select WATCHDOG_CORE
2303 This option enable support for an In-secure watchdog timer driver for
2304 Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every
2305 count unit. An interrupt will be triggered, when the count crosses
2306 the threshold configured in the register.
2308 To compile this driver as a module, choose M here: the
2309 module will be called keembay_wdt.