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 <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can
26 also monitor NFS connections and can reboot the machine when the process
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 comment "Watchdog Pretimeout Governors"
78 config WATCHDOG_PRETIMEOUT_GOV
79 bool "Enable watchdog pretimeout governors"
80 depends on WATCHDOG_CORE
82 The option allows to select watchdog pretimeout governors.
84 config WATCHDOG_PRETIMEOUT_GOV_SEL
86 depends on WATCHDOG_PRETIMEOUT_GOV
88 select WATCHDOG_PRETIMEOUT_GOV_PANIC if WATCHDOG_PRETIMEOUT_GOV_NOOP=n
90 if WATCHDOG_PRETIMEOUT_GOV
92 config WATCHDOG_PRETIMEOUT_GOV_NOOP
93 tristate "Noop watchdog pretimeout governor"
94 depends on WATCHDOG_CORE
97 Noop watchdog pretimeout governor, only an informational
98 message is added to kernel log buffer.
100 config WATCHDOG_PRETIMEOUT_GOV_PANIC
101 tristate "Panic watchdog pretimeout governor"
102 depends on WATCHDOG_CORE
103 default WATCHDOG_CORE
105 Panic watchdog pretimeout governor, on watchdog pretimeout
106 event put the kernel into panic.
109 prompt "Default Watchdog Pretimeout Governor"
110 default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
112 This option selects a default watchdog pretimeout governor.
113 The governor takes its action, if a watchdog is capable
114 to report a pretimeout event.
116 config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP
118 depends on WATCHDOG_PRETIMEOUT_GOV_NOOP
120 Use noop watchdog pretimeout governor by default. If noop
121 governor is selected by a user, write a short message to
122 the kernel log buffer and don't do any system changes.
124 config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
126 depends on WATCHDOG_PRETIMEOUT_GOV_PANIC
128 Use panic watchdog pretimeout governor by default, if
129 a watchdog pretimeout event happens, consider that
130 a watchdog feeder is dead and reboot is unavoidable.
134 endif # WATCHDOG_PRETIMEOUT_GOV
137 # General Watchdog drivers
140 comment "Watchdog Device Drivers"
142 # Architecture Independent
145 tristate "Software watchdog"
148 A software monitoring watchdog. This will fail to reboot your system
149 from some situations that the hardware watchdog will recover
150 from. Equally it's a lot cheaper to install.
152 To compile this driver as a module, choose M here: the
153 module will be called softdog.
155 config SOFT_WATCHDOG_PRETIMEOUT
156 bool "Software watchdog pretimeout governor support"
157 depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV
159 Enable this if you want to use pretimeout governors with the software
160 watchdog. Be aware that governors might affect the watchdog because it
161 is purely software, e.g. the panic governor will stall it!
163 config BD70528_WATCHDOG
164 tristate "ROHM BD70528 PMIC Watchdog"
165 depends on MFD_ROHM_BD70528
168 Support for the watchdog in the ROHM BD70528 PMIC. Watchdog trigger
171 Say Y here to include support for the ROHM BD70528 watchdog.
172 Alternatively say M to compile the driver as a module,
173 which will be called bd70528_wdt.
175 config DA9052_WATCHDOG
176 tristate "Dialog DA9052 Watchdog"
177 depends on PMIC_DA9052 || COMPILE_TEST
180 Support for the watchdog in the DA9052 PMIC. Watchdog trigger
183 Say Y here to include support for the DA9052 watchdog.
184 Alternatively say M to compile the driver as a module,
185 which will be called da9052_wdt.
187 config DA9055_WATCHDOG
188 tristate "Dialog Semiconductor DA9055 Watchdog"
189 depends on MFD_DA9055 || COMPILE_TEST
192 If you say yes here you get support for watchdog on the Dialog
193 Semiconductor DA9055 PMIC.
195 This driver can also be built as a module. If so, the module
196 will be called da9055_wdt.
198 config DA9063_WATCHDOG
199 tristate "Dialog DA9063 Watchdog"
200 depends on MFD_DA9063 || COMPILE_TEST
203 Support for the watchdog in the DA9063 PMIC.
205 This driver can be built as a module. The module name is da9063_wdt.
207 config DA9062_WATCHDOG
208 tristate "Dialog DA9062/61 Watchdog"
209 depends on MFD_DA9062 || COMPILE_TEST
213 Support for the watchdog in the DA9062 and DA9061 PMICs.
215 This driver can be built as a module. The module name is da9062_wdt.
218 tristate "Watchdog device controlled through GPIO-line"
222 If you say yes here you get support for watchdog device
223 controlled through GPIO-line.
225 config GPIO_WATCHDOG_ARCH_INITCALL
226 bool "Register the watchdog as early as possible"
227 depends on GPIO_WATCHDOG=y
229 In some situations, the default initcall level (module_init)
230 in not early enough in the boot process to avoid the watchdog
232 If you say yes here, the initcall level would be raised to
236 config MENF21BMC_WATCHDOG
237 tristate "MEN 14F021P00 BMC Watchdog"
238 depends on MFD_MENF21BMC || COMPILE_TEST
242 Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
244 This driver can also be built as a module. If so the module
245 will be called menf21bmc_wdt.
247 config MENZ069_WATCHDOG
248 tristate "MEN 16Z069 Watchdog"
252 Say Y here to include support for the MEN 16Z069 Watchdog.
254 This driver can also be built as a module. If so the module
255 will be called menz069_wdt.
258 tristate "ACPI Watchdog Action Table (WDAT)"
263 This driver adds support for systems with ACPI Watchdog Action
264 Table (WDAT) table. Servers typically have this but it can be
265 found on some desktop machines as well. This driver will take
266 over the native iTCO watchdog driver found on many Intel CPUs.
268 To compile this driver as module, choose M here: the module will
271 config WM831X_WATCHDOG
272 tristate "WM831x watchdog"
273 depends on MFD_WM831X
276 Support for the watchdog in the WM831x AudioPlus PMICs. When
277 the watchdog triggers the system will be reset.
279 config WM8350_WATCHDOG
280 tristate "WM8350 watchdog"
281 depends on MFD_WM8350
284 Support for the watchdog in the WM8350 AudioPlus PMIC. When
285 the watchdog triggers the system will be reset.
287 config XILINX_WATCHDOG
288 tristate "Xilinx Watchdog timer"
292 Watchdog driver for the xps_timebase_wdt ip core.
294 To compile this driver as a module, choose M here: the
295 module will be called of_xilinx_wdt.
297 config ZIIRAVE_WATCHDOG
298 tristate "Zodiac RAVE Watchdog Timer"
302 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
305 To compile this driver as a module, choose M here: the
306 module will be called ziirave_wdt.
308 config RAVE_SP_WATCHDOG
309 tristate "RAVE SP Watchdog timer"
310 depends on RAVE_SP_CORE
311 depends on NVMEM || !NVMEM
314 Support for the watchdog on RAVE SP device.
317 tristate "Mellanox Watchdog"
318 depends on MELLANOX_PLATFORM
322 This is the driver for the hardware watchdog on Mellanox systems.
323 If you are going to use it, say Y here, otherwise N.
324 This driver can be used together with the watchdog daemon.
325 It can also watch your kernel to make sure it doesn't freeze,
326 and if it does, it reboots your system after a certain amount of
329 To compile this driver as a module, choose M here: the
330 module will be called mlx-wdt.
332 config SL28CPLD_WATCHDOG
333 tristate "Kontron sl28cpld Watchdog"
334 depends on MFD_SL28CPLD || COMPILE_TEST
337 Say Y here to include support for the watchdog timer
338 on the Kontron sl28 CPLD.
340 To compile this driver as a module, choose M here: the
341 module will be called sl28cpld_wdt.
347 config ARM_SP805_WATCHDOG
348 tristate "ARM SP805 Watchdog"
349 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
352 ARM Primecell SP805 Watchdog timer. This will reboot your system when
353 the timeout is reached.
355 config ARM_SBSA_WATCHDOG
356 tristate "ARM SBSA Generic Watchdog"
358 depends on ARM_ARCH_TIMER
361 ARM SBSA Generic Watchdog has two stage timeouts:
362 the first signal (WS0) is for alerting the system by interrupt,
363 the second one (WS1) is a real hardware reset.
364 More details: ARM DEN0029B - Server Base System Architecture (SBSA)
366 This driver can operate ARM SBSA Generic Watchdog as a single stage
367 or a two stages watchdog, it depends on the module parameter "action".
369 Note: the maximum timeout in the two stages mode is half of that in
370 the single stage mode.
372 To compile this driver as module, choose M here: The module
373 will be called sbsa_gwdt.
375 config ARMADA_37XX_WATCHDOG
376 tristate "Armada 37xx watchdog"
377 depends on ARCH_MVEBU || COMPILE_TEST
382 Say Y here to include support for the watchdog timer found on
383 Marvell Armada 37xx SoCs.
384 To compile this driver as a module, choose M here: the
385 module will be called armada_37xx_wdt.
387 config ASM9260_WATCHDOG
388 tristate "Alphascale ASM9260 watchdog"
389 depends on MACH_ASM9260 || COMPILE_TEST
392 select RESET_CONTROLLER
394 Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your
395 system when the timeout is reached.
397 config AT91RM9200_WATCHDOG
398 tristate "AT91RM9200 watchdog"
399 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
401 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
402 system when the timeout is reached.
404 config AT91SAM9X_WATCHDOG
405 tristate "AT91SAM9X / AT91CAP9 watchdog"
406 depends on ARCH_AT91 || COMPILE_TEST
409 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
410 reboot your system when the timeout is reached.
412 config SAMA5D4_WATCHDOG
413 tristate "Atmel SAMA5D4 Watchdog Timer"
414 depends on ARCH_AT91 || COMPILE_TEST
417 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
418 Its Watchdog Timer Mode Register can be written more than once.
419 This will reboot your system when the timeout is reached.
421 config CADENCE_WATCHDOG
422 tristate "Cadence Watchdog Timer"
426 Say Y here if you want to include support for the watchdog
427 timer in the Xilinx Zynq.
429 config 21285_WATCHDOG
430 tristate "DC21285 watchdog"
431 depends on FOOTBRIDGE
433 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
434 here if you wish to use this. Alternatively say M to compile the
435 driver as a module, which will be called wdt285.
437 This driver does not work on all machines. In particular, early CATS
438 boards have hardware problems that will cause the machine to simply
439 lock up if the watchdog fires.
441 "If in doubt, leave it out" - say N.
444 tristate "NetWinder WB83C977 watchdog"
445 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
447 Say Y here to include support for the WB977 watchdog included in
448 NetWinder machines. Alternatively say M to compile the driver as
449 a module, which will be called wdt977.
451 Not sure? It's safe to say N.
453 config FTWDT010_WATCHDOG
454 tristate "Faraday Technology FTWDT010 watchdog"
455 depends on ARM || COMPILE_TEST
459 Say Y here if to include support for the Faraday Technology
460 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
463 To compile this driver as a module, choose M here: the
464 module will be called ftwdt010_wdt.
466 config IXP4XX_WATCHDOG
467 tristate "IXP4xx Watchdog"
468 depends on ARCH_IXP4XX
470 Say Y here if to include support for the watchdog timer
471 in the Intel IXP4xx network processors. This driver can
472 be built as a module by choosing M. The module will
473 be called ixp4xx_wdt.
475 Note: The internal IXP4xx watchdog does a soft CPU reset
476 which doesn't reset any peripherals. There are circumstances
477 where the watchdog will fail to reset the board correctly
478 (e.g., if the boot ROM is in an unreadable state).
480 Say N if you are unsure.
482 config S3C2410_WATCHDOG
483 tristate "S3C2410 Watchdog"
484 depends on ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || \
487 select MFD_SYSCON if ARCH_EXYNOS
489 Watchdog timer block in the Samsung SoCs. This will reboot
490 the system when the timer expires with the watchdog enabled.
492 The driver is limited by the speed of the system's PCLK
493 signal, so with reasonably fast systems (PCLK around 50-66MHz)
494 then watchdog intervals of over approximately 20seconds are
497 The driver can be built as a module by choosing M, and will
498 be called s3c2410_wdt
500 config SA1100_WATCHDOG
501 tristate "SA1100/PXA2xx watchdog"
502 depends on ARCH_SA1100 || ARCH_PXA
504 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
505 reboot your system when timeout is reached.
507 NOTE: once enabled, this timer cannot be disabled.
509 To compile this driver as a module, choose M here: the
510 module will be called sa1100_wdt.
513 tristate "Synopsys DesignWare watchdog"
517 Say Y here if to include support for the Synopsys DesignWare
518 watchdog timer found in many chips.
519 To compile this driver as a module, choose M here: the
520 module will be called dw_wdt.
522 config EP93XX_WATCHDOG
523 tristate "EP93xx Watchdog"
524 depends on ARCH_EP93XX || COMPILE_TEST
527 Say Y here if to include support for the watchdog timer
528 embedded in the Cirrus Logic EP93xx family of devices.
530 To compile this driver as a module, choose M here: the
531 module will be called ep93xx_wdt.
534 tristate "OMAP Watchdog"
535 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
538 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
539 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
541 config PNX4008_WATCHDOG
542 tristate "LPC32XX Watchdog"
543 depends on ARCH_LPC32XX || COMPILE_TEST
546 Say Y here if to include support for the watchdog timer
547 in the LPC32XX processor.
548 This driver can be built as a module by choosing M. The module
549 will be called pnx4008_wdt.
551 Say N if you are unsure.
554 tristate "IOP Watchdog"
555 depends on ARCH_IOP13XX
556 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
558 Say Y here if to include support for the watchdog timer
559 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
560 be built as a module by choosing M. The module will
563 Note: The IOP13XX watchdog does an Internal Bus Reset which will
564 affect both cores and the peripherals of the IOP. The ATU-X
565 and/or ATUe configuration registers will remain intact, but if
566 operating as an Root Complex and/or Central Resource, the PCI-X
567 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
569 config DAVINCI_WATCHDOG
570 tristate "DaVinci watchdog"
571 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
574 Say Y here if to include support for the watchdog timer
575 in the DaVinci DM644x/DM646x or Keystone processors.
576 To compile this driver as a module, choose M here: the
577 module will be called davinci_wdt.
579 NOTE: once enabled, this timer cannot be disabled.
580 Say N if you are unsure.
582 config K3_RTI_WATCHDOG
583 tristate "Texas Instruments K3 RTI watchdog"
584 depends on ARCH_K3 || COMPILE_TEST
587 Say Y here if you want to include support for the K3 watchdog
588 timer (RTI module) available in the K3 generation of processors.
590 config ORION_WATCHDOG
591 tristate "Orion watchdog"
592 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST
596 Say Y here if to include support for the watchdog timer
597 in the Marvell Orion5x and Kirkwood ARM SoCs.
598 To compile this driver as a module, choose M here: the
599 module will be called orion_wdt.
601 config RN5T618_WATCHDOG
602 tristate "Ricoh RN5T618 watchdog"
603 depends on MFD_RN5T618 || COMPILE_TEST
606 If you say yes here you get support for watchdog on the Ricoh
609 This driver can also be built as a module. If so, the module
610 will be called rn5t618_wdt.
612 config SUNXI_WATCHDOG
613 tristate "Allwinner SoCs watchdog support"
614 depends on ARCH_SUNXI || COMPILE_TEST
617 Say Y here to include support for the watchdog timer
619 To compile this driver as a module, choose M here: the
620 module will be called sunxi_wdt.
622 config NPCM7XX_WATCHDOG
623 tristate "Nuvoton NPCM750 watchdog"
624 depends on ARCH_NPCM || COMPILE_TEST
625 default y if ARCH_NPCM7XX
628 Say Y here to include Watchdog timer support for the
629 watchdog embedded into the NPCM7xx.
630 This watchdog is used to reset the system and thus cannot be
631 compiled as a module.
633 config TWL4030_WATCHDOG
634 tristate "TWL4030 Watchdog"
635 depends on TWL4030_CORE
638 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
639 watchdog timer support for TWL4030 chips.
641 config STMP3XXX_RTC_WATCHDOG
642 tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
643 depends on RTC_DRV_STMP || COMPILE_TEST
646 Say Y here to include support for the watchdog timer inside
647 the RTC for the STMP37XX/378X or i.MX23/28 SoC.
648 To compile this driver as a module, choose M here: the
649 module will be called stmp3xxx_rtc_wdt.
651 config TS4800_WATCHDOG
652 tristate "TS-4800 Watchdog"
653 depends on HAS_IOMEM && OF
654 depends on SOC_IMX51 || COMPILE_TEST
658 Technologic Systems TS-4800 has watchdog timer implemented in
659 an external FPGA. Say Y here if you want to support for the
660 watchdog timer on TS-4800 board.
662 config TS72XX_WATCHDOG
663 tristate "TS-72XX SBC Watchdog"
664 depends on MACH_TS72XX || COMPILE_TEST
667 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
668 watchdog timer implemented in a external CPLD chip. Say Y here
669 if you want to support for the watchdog timer on TS-72XX boards.
671 To compile this driver as a module, choose M here: the
672 module will be called ts72xx_wdt.
674 config MAX63XX_WATCHDOG
675 tristate "Max63xx watchdog"
679 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
681 config MAX77620_WATCHDOG
682 tristate "Maxim Max77620 Watchdog Timer"
683 depends on MFD_MAX77620 || COMPILE_TEST
686 This is the driver for the Max77620 watchdog timer.
687 Say 'Y' here to enable the watchdog timer support for
688 MAX77620 chips. To compile this driver as a module,
689 choose M here: the module will be called max77620_wdt.
692 tristate "IMX2+ Watchdog"
693 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
697 This is the driver for the hardware watchdog
698 on the Freescale IMX2 and later processors.
699 If you have one of these processors and wish to have
700 watchdog support enabled, say Y, otherwise say N.
702 To compile this driver as a module, choose M here: the
703 module will be called imx2_wdt.
706 tristate "IMX SC Watchdog"
707 depends on HAVE_ARM_SMCCC
711 This is the driver for the system controller watchdog
712 on the NXP i.MX SoCs with system controller inside, the
713 watchdog driver will call ARM SMC API and trap into
714 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
715 will request system controller to execute the operations.
716 If you have one of these processors and wish to have
717 watchdog support enabled, say Y, otherwise say N.
719 To compile this driver as a module, choose M here: the
720 module will be called imx_sc_wdt.
723 tristate "IMX7ULP Watchdog"
724 depends on ARCH_MXC || COMPILE_TEST
727 This is the driver for the hardware watchdog on the Freescale
728 IMX7ULP and later processors. If you have one of these
729 processors and wish to have watchdog support enabled,
730 say Y, otherwise say N.
732 To compile this driver as a module, choose M here: the
733 module will be called imx7ulp_wdt.
735 config UX500_WATCHDOG
736 tristate "ST-Ericsson Ux500 watchdog"
737 depends on MFD_DB8500_PRCMU
741 Say Y here to include Watchdog timer support for the watchdog
742 existing in the prcmu of ST-Ericsson Ux500 series platforms.
744 To compile this driver as a module, choose M here: the
745 module will be called ux500_wdt.
748 tristate "Retu watchdog"
752 Retu watchdog driver for Nokia Internet Tablets (770, N800,
753 N810). At least on N800 the watchdog cannot be disabled, so
754 this driver is essential and you should enable it.
756 To compile this driver as a module, choose M here: the
757 module will be called retu_wdt.
760 tristate "MOXART watchdog"
761 depends on ARCH_MOXART || COMPILE_TEST
763 Say Y here to include Watchdog timer support for the watchdog
764 existing on the MOXA ART SoC series platforms.
766 To compile this driver as a module, choose M here: the
767 module will be called moxart_wdt.
769 config ST_LPC_WATCHDOG
770 tristate "STMicroelectronics LPC Watchdog"
771 depends on ARCH_STI || COMPILE_TEST
775 Say Y here to include STMicroelectronics Low Power Controller
776 (LPC) based Watchdog timer support.
778 To compile this driver as a module, choose M here: the
779 module will be called st_lpc_wdt.
781 config TEGRA_WATCHDOG
782 tristate "Tegra watchdog"
783 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
786 Say Y here to include support for the watchdog timer
787 embedded in NVIDIA Tegra SoCs.
789 To compile this driver as a module, choose M here: the
790 module will be called tegra_wdt.
793 tristate "QCOM watchdog"
795 depends on ARCH_QCOM || COMPILE_TEST
798 Say Y here to include Watchdog timer support for the watchdog found
799 on QCOM chipsets. Currently supported targets are the MSM8960,
800 APQ8064, and IPQ8064.
802 To compile this driver as a module, choose M here: the
803 module will be called qcom_wdt.
805 config MESON_GXBB_WATCHDOG
806 tristate "Amlogic Meson GXBB SoCs watchdog support"
807 depends on ARCH_MESON || COMPILE_TEST
810 Say Y here to include support for the watchdog timer
811 in Amlogic Meson GXBB SoCs.
812 To compile this driver as a module, choose M here: the
813 module will be called meson_gxbb_wdt.
815 config MESON_WATCHDOG
816 tristate "Amlogic Meson SoCs watchdog support"
817 depends on ARCH_MESON || COMPILE_TEST
820 Say Y here to include support for the watchdog timer
821 in Amlogic Meson SoCs.
822 To compile this driver as a module, choose M here: the
823 module will be called meson_wdt.
825 config MEDIATEK_WATCHDOG
826 tristate "Mediatek SoCs watchdog support"
827 depends on ARCH_MEDIATEK || COMPILE_TEST
829 select RESET_CONTROLLER
831 Say Y here to include support for the watchdog timer
833 To compile this driver as a module, choose M here: the
834 module will be called mtk_wdt.
836 config DIGICOLOR_WATCHDOG
837 tristate "Conexant Digicolor SoCs watchdog support"
838 depends on ARCH_DIGICOLOR || COMPILE_TEST
841 Say Y here to include support for the watchdog timer
842 in Conexant Digicolor SoCs.
843 To compile this driver as a module, choose M here: the
844 module will be called digicolor_wdt.
846 config ARM_SMC_WATCHDOG
847 tristate "ARM Secure Monitor Call based watchdog support"
848 depends on ARM || ARM64
850 depends on HAVE_ARM_SMCCC
853 Say Y here to include support for a watchdog timer
854 implemented by the EL3 Secure Monitor on ARM platforms.
855 Requires firmware support.
856 To compile this driver as a module, choose M here: the
857 module will be called arm_smc_wdt.
859 config LPC18XX_WATCHDOG
860 tristate "LPC18xx/43xx Watchdog"
861 depends on ARCH_LPC18XX || COMPILE_TEST
865 Say Y here if to include support for the watchdog timer
866 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
868 To compile this driver as a module, choose M here: the
869 module will be called lpc18xx_wdt.
872 tristate "Renesas WDT Watchdog"
873 depends on ARCH_RENESAS || COMPILE_TEST
876 This driver adds watchdog support for the integrated watchdogs in the
877 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
879 config RENESAS_RZAWDT
880 tristate "Renesas RZ/A WDT Watchdog"
881 depends on ARCH_RENESAS || COMPILE_TEST
884 This driver adds watchdog support for the integrated watchdogs in the
885 Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
887 config ASPEED_WATCHDOG
888 tristate "Aspeed BMC watchdog support"
889 depends on ARCH_ASPEED || COMPILE_TEST
892 Say Y here to include support for the watchdog timer
895 This driver is required to reboot the SoC.
897 To compile this driver as a module, choose M here: the
898 module will be called aspeed_wdt.
900 config STM32_WATCHDOG
901 tristate "STM32 Independent WatchDoG (IWDG) support"
902 depends on ARCH_STM32
906 Say Y here to include support for the watchdog timer
909 To compile this driver as a module, choose M here: the
910 module will be called stm32_iwdg.
912 config STPMIC1_WATCHDOG
913 tristate "STPMIC1 PMIC watchdog support"
914 depends on MFD_STPMIC1
917 Say Y here to include watchdog support embedded into STPMIC1 PMIC.
918 If the watchdog timer expires, stpmic1 will shut down all its power
921 To compile this driver as a module, choose M here: the
922 module will be called spmic1_wdt.
924 config UNIPHIER_WATCHDOG
925 tristate "UniPhier watchdog support"
926 depends on ARCH_UNIPHIER || COMPILE_TEST
927 depends on OF && MFD_SYSCON
930 Say Y here to include support watchdog timer embedded
931 into the UniPhier system.
933 To compile this driver as a module, choose M here: the
934 module will be called uniphier_wdt.
936 config RTD119X_WATCHDOG
937 bool "Realtek RTD119x/RTD129x watchdog support"
938 depends on ARCH_REALTEK || COMPILE_TEST
943 Say Y here to include support for the watchdog timer in
944 Realtek RTD1295 SoCs.
947 tristate "Spreadtrum watchdog support"
948 depends on ARCH_SPRD || COMPILE_TEST
951 Say Y here to include watchdog timer supported
952 by Spreadtrum system.
954 config PM8916_WATCHDOG
955 tristate "QCOM PM8916 pmic watchdog"
956 depends on OF && MFD_SPMI_PMIC
959 Say Y here to include support watchdog timer embedded into the
962 config VISCONTI_WATCHDOG
963 tristate "Toshiba Visconti series watchdog support"
964 depends on ARCH_VISCONTI || COMPILE_TEST
967 Say Y here to include support for the watchdog timer in Toshiba
970 # X86 (i386 + ia64 + x86_64) Architecture
973 tristate "Acquire SBC Watchdog Timer"
976 This is the driver for the hardware watchdog on Single Board
977 Computers produced by Acquire Inc (and others). This watchdog
978 simply watches your kernel to make sure it doesn't freeze, and if
979 it does, it reboots your computer after a certain amount of time.
981 To compile this driver as a module, choose M here: the
982 module will be called acquirewdt.
984 Most people will say N.
987 tristate "Advantech SBC Watchdog Timer"
990 If you are configuring a Linux kernel for the Advantech single-board
991 computer, say `Y' here to support its built-in watchdog timer
992 feature. More information can be found at
993 <https://www.advantech.com.tw/products/>
996 tristate "ALi M1535 PMU Watchdog Timer"
997 depends on X86 && PCI
999 This is the driver for the hardware watchdog on the ALi M1535 PMU.
1001 To compile this driver as a module, choose M here: the
1002 module will be called alim1535_wdt.
1004 Most people will say N.
1007 tristate "ALi M7101 PMU Computer Watchdog"
1010 This is the driver for the hardware watchdog on the ALi M7101 PMU
1011 as used in the x86 Cobalt servers and also found in some
1012 SPARC Netra servers too.
1014 To compile this driver as a module, choose M here: the
1015 module will be called alim7101_wdt.
1017 Most people will say N.
1020 tristate "WinSystems EBC-C384 Watchdog Timer"
1023 select WATCHDOG_CORE
1025 Enables watchdog timer support for the watchdog timer on the
1026 WinSystems EBC-C384 motherboard. The timeout may be configured via
1027 the timeout module parameter.
1030 tristate "Fintek F718xx, F818xx Super I/O Watchdog"
1033 This is the driver for the hardware watchdog on the Fintek F71808E,
1034 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and
1035 F81866 Super I/O controllers.
1037 You can compile this driver directly into the kernel, or use
1038 it as a module. The module will be called f71808e_wdt.
1041 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
1042 depends on X86 && PCI
1043 select WATCHDOG_CORE
1045 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
1046 (Total Cost of Ownership) timer is a watchdog timer that will reboot
1047 the machine after its expiration. The expiration time can be
1048 configured with the "heartbeat" parameter.
1050 To compile this driver as a module, choose M here: the
1051 module will be called sp5100_tco.
1054 tristate "AMD Geode CS5535/CS5536 Watchdog"
1055 depends on CS5535_MFGPT
1057 This driver enables a watchdog capability built into the
1058 CS5535/CS5536 companion chips for the AMD Geode GX and LX
1059 processors. This watchdog watches your kernel to make sure
1060 it doesn't freeze, and if it does, it reboots your computer after
1061 a certain amount of time.
1063 You can compile this driver directly into the kernel, or use
1064 it as a module. The module will be called geodewdt.
1067 tristate "AMD Elan SC520 processor Watchdog"
1068 depends on MELAN || COMPILE_TEST
1070 This is the driver for the hardware watchdog built in to the
1071 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
1072 This watchdog simply watches your kernel to make sure it doesn't
1073 freeze, and if it does, it reboots your computer after a certain
1076 You can compile this driver directly into the kernel, or use
1077 it as a module. The module will be called sc520_wdt.
1079 config SBC_FITPC2_WATCHDOG
1080 tristate "Compulab SBC-FITPC2 watchdog"
1083 This is the driver for the built-in watchdog timer on the fit-PC2,
1084 fit-PC2i, CM-iAM single-board computers made by Compulab.
1086 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
1087 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
1089 Entering BIOS setup temporary disables watchdog operation regardless to current state,
1090 so system will not be restarted while user in BIOS setup.
1092 Once watchdog was enabled the system will be restarted every
1093 "Watchdog Timer Value" period, so to prevent it user can restart or
1094 disable the watchdog.
1096 To compile this driver as a module, choose M here: the
1097 module will be called sbc_fitpc2_wdt.
1099 Most people will say N.
1102 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1105 Enable support for the watchdog timer on the Eurotech CPU-1220 and
1106 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
1107 information are at <http://www.eurotech.it/>.
1110 tristate "IB700 SBC Watchdog Timer"
1113 This is the driver for the hardware watchdog on the IB700 Single
1114 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
1115 simply watches your kernel to make sure it doesn't freeze, and if
1116 it does, it reboots your computer after a certain amount of time.
1118 This driver is like the WDT501 driver but for slightly different hardware.
1120 To compile this driver as a module, choose M here: the
1121 module will be called ib700wdt.
1123 Most people will say N.
1126 tristate "IBM Automatic Server Restart"
1129 This is the driver for the IBM Automatic Server Restart watchdog
1130 timer built-in into some eServer xSeries machines.
1132 To compile this driver as a module, choose M here: the
1133 module will be called ibmasr.
1136 tristate "ICP Single Board Computer Watchdog Timer"
1139 This is a driver for the hardware watchdog on the ICP Single
1140 Board Computer. This driver is working on (at least) the following
1141 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1143 To compile this driver as a module, choose M here: the
1144 module will be called wafer5823wdt.
1147 tristate "Intel 6300ESB Timer/Watchdog"
1149 select WATCHDOG_CORE
1151 Hardware driver for the watchdog timer built into the Intel
1152 6300ESB controller hub.
1154 To compile this driver as a module, choose M here: the
1155 module will be called i6300esb.
1158 tristate "Intel Atom E6xx Watchdog"
1159 depends on X86 && PCI
1160 select WATCHDOG_CORE
1164 Hardware driver for the watchdog timer built into the Intel
1165 Atom E6XX (TunnelCreek) processor.
1167 To compile this driver as a module, choose M here: the
1168 module will be called ie6xx_wdt.
1170 config INTEL_MID_WATCHDOG
1171 tristate "Intel MID Watchdog Timer"
1172 depends on X86_INTEL_MID
1173 select WATCHDOG_CORE
1175 Watchdog timer driver built into the Intel SCU for Intel MID
1178 This driver currently supports only the watchdog evolution
1179 implementation in SCU, available for Merrifield generation.
1181 To compile this driver as a module, choose M here.
1184 tristate "Intel TCO Timer/Watchdog"
1185 depends on (X86 || IA64) && PCI
1186 select WATCHDOG_CORE
1187 depends on I2C || I2C=n
1188 depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT
1189 select LPC_ICH if !EXPERT
1190 select I2C_I801 if !EXPERT && I2C
1192 Hardware driver for the intel TCO timer based watchdog devices.
1193 These drivers are included in the Intel 82801 I/O Controller
1194 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1197 The TCO (Total Cost of Ownership) timer is a watchdog timer
1198 that will reboot the machine after its second expiration. The
1199 expiration time can be configured with the "heartbeat" parameter.
1201 On some motherboards the driver may fail to reset the chipset's
1202 NO_REBOOT flag which prevents the watchdog from rebooting the
1203 machine. If this is the case you will get a kernel message like
1204 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1206 To compile this driver as a module, choose M here: the
1207 module will be called iTCO_wdt.
1209 config ITCO_VENDOR_SUPPORT
1210 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1213 Add vendor specific support to the intel TCO timer based watchdog
1214 devices. At this moment we only have additional support for some
1215 SuperMicro Inc. motherboards.
1218 tristate "IT8712F (Smart Guardian) Watchdog Timer"
1221 This is the driver for the built-in watchdog timer on the IT8712F
1222 Super I/0 chipset used on many motherboards.
1224 If the driver does not work, then make sure that the game port in
1225 the BIOS is enabled.
1227 To compile this driver as a module, choose M here: the
1228 module will be called it8712f_wdt.
1231 tristate "IT87 Watchdog Timer"
1233 select WATCHDOG_CORE
1235 This is the driver for the hardware watchdog on the ITE IT8607,
1236 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1237 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1238 IT8783 Super I/O chips.
1240 This watchdog simply watches your kernel to make sure it doesn't
1241 freeze, and if it does, it reboots your computer after a certain
1244 To compile this driver as a module, choose M here: the module will
1248 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1249 select WATCHDOG_CORE
1250 depends on X86 && PCI
1252 A software monitoring watchdog and NMI handling driver. This driver
1253 will detect lockups and provide a stack trace. This is a driver that
1254 will only load on an HP ProLiant system with a minimum of iLO2 support.
1255 To compile this driver as a module, choose M here: the module will be
1258 config HPWDT_NMI_DECODING
1259 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1260 depends on HP_WATCHDOG
1263 Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1264 "Generate NMI to System" virtual button. When an NMI is claimed
1265 by the driver, panic is called.
1268 tristate "Kontron COM Watchdog Timer"
1269 depends on MFD_KEMPLD
1270 select WATCHDOG_CORE
1272 Support for the PLD watchdog on some Kontron ETX and COMexpress
1273 (ETXexpress) modules
1275 This driver can also be built as a module. If so, the module will be
1279 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1282 This is a driver for National Semiconductor PC87307/PC97307 hardware
1283 watchdog cards as found on the SC1200. This watchdog is mainly used
1284 for power management purposes and can be used to power down the device
1285 during inactivity periods (includes interrupt activity monitoring).
1287 To compile this driver as a module, choose M here: the
1288 module will be called sc1200wdt.
1290 Most people will say N.
1293 tristate "National Semiconductor SCx200 Watchdog"
1294 depends on SCx200 && PCI
1296 Enable the built-in watchdog timer support on the National
1297 Semiconductor SCx200 processors.
1299 If compiled as a module, it will be called scx200_wdt.
1302 tristate "NS PC87413 watchdog"
1305 This is the driver for the hardware watchdog on the PC87413 chipset
1306 This watchdog simply watches your kernel to make sure it doesn't
1307 freeze, and if it does, it reboots your computer after a certain
1310 To compile this driver as a module, choose M here: the
1311 module will be called pc87413_wdt.
1313 Most people will say N.
1316 tristate "nVidia TCO Timer/Watchdog"
1317 depends on X86 && PCI
1319 Hardware driver for the TCO timer built into the nVidia Hub family
1320 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
1321 watchdog timer that will reboot the machine after its second
1322 expiration. The expiration time can be configured with the
1323 "heartbeat" parameter.
1325 On some motherboards the driver may fail to reset the chipset's
1326 NO_REBOOT flag which prevents the watchdog from rebooting the
1327 machine. If this is the case you will get a kernel message like
1328 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1330 To compile this driver as a module, choose M here: the
1331 module will be called nv_tco.
1334 tristate "RDC R-321x SoC watchdog"
1335 depends on X86_RDC321X || COMPILE_TEST
1338 This is the driver for the built in hardware watchdog
1339 in the RDC R-321x SoC.
1341 To compile this driver as a module, choose M here: the
1342 module will be called rdc321x_wdt.
1345 tristate "SBC-60XX Watchdog Timer"
1348 This driver can be used with the watchdog timer found on some
1349 single board computers, namely the 6010 PII based computer.
1350 It may well work with other cards. It reads port 0x443 to enable
1351 and re-set the watchdog timer, and reads port 0x45 to disable
1352 the watchdog. If you have a card that behave in similar ways,
1353 you can probably make this driver work with your card as well.
1355 You can compile this driver directly into the kernel, or use
1356 it as a module. The module will be called sbc60xxwdt.
1359 tristate "SBC8360 Watchdog Timer"
1363 This is the driver for the hardware watchdog on the SBC8360 Single
1364 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1366 To compile this driver as a module, choose M here: the
1367 module will be called sbc8360.
1369 Most people will say N.
1372 tristate "SBC Nano 7240 Watchdog Timer"
1373 depends on X86_32 && !UML
1375 This is the driver for the hardware watchdog found on the IEI
1376 single board computers EPIC Nano 7240 (and likely others). This
1377 watchdog simply watches your kernel to make sure it doesn't freeze,
1378 and if it does, it reboots your computer after a certain amount of
1381 To compile this driver as a module, choose M here: the
1382 module will be called sbc7240_wdt.
1385 tristate "SMA CPU5 Watchdog"
1389 To compile this driver as a module, choose M here: the
1390 module will be called cpu5wdt.
1392 config SMSC_SCH311X_WDT
1393 tristate "SMSC SCH311X Watchdog Timer"
1396 This is the driver for the hardware watchdog timer on the
1397 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1398 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1401 To compile this driver as a module, choose M here: the
1402 module will be called sch311x_wdt.
1404 config SMSC37B787_WDT
1405 tristate "Winbond SMsC37B787 Watchdog Timer"
1408 This is the driver for the hardware watchdog component on the
1409 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1410 from Vision Systems and maybe others.
1412 This watchdog simply watches your kernel to make sure it doesn't
1413 freeze, and if it does, it reboots your computer after a certain
1416 Usually a userspace daemon will notify the kernel WDT driver that
1417 userspace is still alive, at regular intervals.
1419 To compile this driver as a module, choose M here: the
1420 module will be called smsc37b787_wdt.
1422 Most people will say N.
1425 tristate "TQ-Systems TQMX86 Watchdog Timer"
1427 select WATCHDOG_CORE
1429 This is the driver for the hardware watchdog timer in the TQMX86 IO
1430 controller found on some of their ComExpress Modules.
1432 To compile this driver as a module, choose M here; the module
1433 will be called tqmx86_wdt.
1435 Most people will say N.
1438 tristate "VIA Watchdog Timer"
1439 depends on X86 && PCI
1440 select WATCHDOG_CORE
1442 This is the driver for the hardware watchdog timer on VIA
1443 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1445 To compile this driver as a module, choose M here; the module
1446 will be called via_wdt.
1448 Most people will say N.
1451 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1453 select WATCHDOG_CORE
1455 This is the driver for the hardware watchdog on the following
1457 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1471 This watchdog simply watches your kernel to make sure it doesn't
1472 freeze, and if it does, it reboots your computer after a certain
1475 To compile this driver as a module, choose M here: the
1476 module will be called w83627hf_wdt.
1478 Most people will say N.
1481 tristate "W83877F (EMACS) Watchdog Timer"
1484 This is the driver for the hardware watchdog on the W83877F chipset
1485 as used in EMACS PC-104 motherboards (and likely others). This
1486 watchdog simply watches your kernel to make sure it doesn't freeze,
1487 and if it does, it reboots your computer after a certain amount of
1490 To compile this driver as a module, choose M here: the
1491 module will be called w83877f_wdt.
1493 Most people will say N.
1496 tristate "W83977F (PCM-5335) Watchdog Timer"
1499 This is the driver for the hardware watchdog on the W83977F I/O chip
1500 as used in AAEON's PCM-5335 SBC (and likely others). This
1501 watchdog simply watches your kernel to make sure it doesn't freeze,
1502 and if it does, it reboots your computer after a certain amount of
1505 To compile this driver as a module, choose M here: the
1506 module will be called w83977f_wdt.
1509 tristate "ZF MachZ Watchdog"
1512 If you are using a ZF Micro MachZ processor, say Y here, otherwise
1513 N. This is the driver for the watchdog timer built-in on that
1514 processor using ZF-Logic interface. This watchdog simply watches
1515 your kernel to make sure it doesn't freeze, and if it does, it
1516 reboots your computer after a certain amount of time.
1518 To compile this driver as a module, choose M here: the
1519 module will be called machzwd.
1521 config SBC_EPX_C3_WATCHDOG
1522 tristate "Winsystems SBC EPX-C3 watchdog"
1525 This is the driver for the built-in watchdog timer on the EPX-C3
1526 Single-board computer made by Winsystems, Inc.
1528 *Note*: This hardware watchdog is not probeable and thus there
1529 is no way to know if writing to its IO address will corrupt
1530 your system or have any real effect. The only way to be sure
1531 that this driver does what you want is to make sure you
1532 are running it on an EPX-C3 from Winsystems with the watchdog
1533 timer at IO address 0x1ee and 0x1ef. It will write to both those
1534 IO ports. Basically, the assumption is made that if you compile
1535 this driver into your kernel and/or load it as a module, that you
1536 know what you are doing and that you are in fact running on an
1539 To compile this driver as a module, choose M here: the
1540 module will be called sbc_epx_c3.
1542 config INTEL_MEI_WDT
1543 tristate "Intel MEI iAMT Watchdog"
1544 depends on INTEL_MEI && X86
1545 select WATCHDOG_CORE
1547 A device driver for the Intel MEI iAMT watchdog.
1549 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1550 Whenever the OS hangs or crashes, iAMT will send an event
1551 to any subscriber to this event. The watchdog doesn't reset the
1554 To compile this driver as a module, choose M here:
1555 the module will be called mei_wdt.
1558 tristate "NI 903x/913x Watchdog"
1559 depends on X86 && ACPI
1560 select WATCHDOG_CORE
1562 This is the driver for the watchdog timer on the National Instruments
1563 903x/913x real-time controllers.
1565 To compile this driver as a module, choose M here: the module will be
1569 tristate "NIC7018 Watchdog"
1570 depends on X86 && ACPI
1571 select WATCHDOG_CORE
1573 Support for National Instruments NIC7018 Watchdog.
1575 To compile this driver as a module, choose M here: the module will be
1580 config M54xx_WATCHDOG
1581 tristate "MCF54xx watchdog support"
1584 To compile this driver as a module, choose M here: the
1585 module will be called m54xx_wdt.
1587 # MicroBlaze Architecture
1592 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1593 depends on ATH79 || (ARM && COMPILE_TEST)
1595 Hardware driver for the built-in watchdog timer on the Atheros
1596 AR71XX/AR724X/AR913X SoCs.
1599 tristate "Broadcom BCM47xx Watchdog Timer"
1600 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1601 select WATCHDOG_CORE
1603 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1606 tristate "IDT RC32434 SoC Watchdog Timer"
1607 depends on MIKROTIK_RB532
1609 Hardware driver for the IDT RC32434 SoC built-in
1612 To compile this driver as a module, choose M here: the
1613 module will be called rc32434_wdt.
1616 tristate "Indy/I2 Hardware Watchdog"
1617 depends on SGI_HAS_INDYDOG
1619 Hardware driver for the Indy's/I2's watchdog. This is a
1620 watchdog timer that will reboot the machine after a 60 second
1621 timer expired and no process has written to /dev/watchdog during
1625 tristate "Ingenic jz4740 SoC hardware watchdog"
1627 depends on COMMON_CLK
1628 select WATCHDOG_CORE
1631 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1634 tristate "MTX-1 Hardware Watchdog"
1635 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1637 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1638 will reboot the machine after a 100 seconds timer expired.
1641 tristate "Sibyte SoC hardware watchdog"
1642 depends on CPU_SB1 || (MIPS && COMPILE_TEST)
1644 Watchdog driver for the built in watchdog hardware in Sibyte
1645 SoC processors. There are apparently two watchdog timers
1646 on such processors; this driver supports only the first one,
1647 because currently Linux only supports exporting one watchdog
1650 To compile this driver as a loadable module, choose M here.
1651 The module will be called sb_wdog.
1654 tristate "TI AR7 Watchdog Timer"
1655 depends on AR7 || (MIPS && COMPILE_TEST)
1657 Hardware driver for the TI AR7 Watchdog Timer.
1660 tristate "Toshiba TXx9 Watchdog Timer"
1661 depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
1662 select WATCHDOG_CORE
1664 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1667 tristate "Cavium OCTEON SOC family Watchdog Timer"
1668 depends on CAVIUM_OCTEON_SOC
1670 select WATCHDOG_CORE
1671 select EXPORT_UASM if OCTEON_WDT = m
1673 Hardware driver for OCTEON's on chip watchdog timer.
1674 Enables the watchdog for all cores running Linux. It
1675 installs a NMI handler and pokes the watchdog based on an
1676 interrupt. On first expiration of the watchdog, the
1677 interrupt handler pokes it. The second expiration causes an
1678 NMI that prints a message. The third expiration causes a
1681 When userspace has /dev/watchdog open, no poking is done
1682 from the first interrupt, it is then only poked when the
1686 tristate "Broadcom BCM63xx hardware watchdog"
1689 Watchdog driver for the built in watchdog hardware in Broadcom
1692 To compile this driver as a loadable module, choose M here.
1693 The module will be called bcm63xx_wdt.
1696 tristate "Broadcom BCM2835 hardware watchdog"
1697 depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1698 select WATCHDOG_CORE
1700 Watchdog driver for the built in watchdog hardware in Broadcom
1703 To compile this driver as a loadable module, choose M here.
1704 The module will be called bcm2835_wdt.
1707 tristate "BCM Kona Watchdog"
1708 depends on ARCH_BCM_MOBILE || COMPILE_TEST
1709 select WATCHDOG_CORE
1711 Support for the watchdog timer on the following Broadcom BCM281xx
1712 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1715 Say 'Y' or 'M' here to enable the driver. The module will be called
1718 config BCM_KONA_WDT_DEBUG
1719 bool "DEBUGFS support for BCM Kona Watchdog"
1720 depends on BCM_KONA_WDT
1722 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1723 access to the driver's internal data structures as well as watchdog
1724 timer hardware registres.
1726 If in doubt, say 'N'.
1729 tristate "BCM7038 Watchdog"
1730 select WATCHDOG_CORE
1731 depends on HAS_IOMEM
1732 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1734 Watchdog driver for the built-in hardware in Broadcom 7038 and
1735 later SoCs used in set-top boxes. BCM7038 was made public
1736 during the 2004 CES, and since then, many Broadcom chips use this
1737 watchdog block, including some cable modem chips.
1740 tristate "Imagination Technologies PDC Watchdog Timer"
1741 depends on HAS_IOMEM
1742 depends on MIPS || COMPILE_TEST
1743 select WATCHDOG_CORE
1745 Driver for Imagination Technologies PowerDown Controller
1748 To compile this driver as a loadable module, choose M here.
1749 The module will be called imgpdc_wdt.
1752 tristate "Lantiq SoC watchdog"
1754 select WATCHDOG_CORE
1756 Hardware driver for the Lantiq SoC Watchdog Timer.
1758 config LOONGSON1_WDT
1759 tristate "Loongson1 SoC hardware watchdog"
1760 depends on MACH_LOONGSON32
1761 select WATCHDOG_CORE
1763 Hardware driver for the Loongson1 SoC Watchdog Timer.
1766 tristate "Ralink SoC watchdog"
1767 select WATCHDOG_CORE
1770 Hardware driver for the Ralink SoC Watchdog Timer.
1773 tristate "Mediatek SoC watchdog"
1774 select WATCHDOG_CORE
1775 depends on SOC_MT7620 || SOC_MT7621
1777 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1780 tristate "Microchip PIC32 hardware watchdog"
1781 select WATCHDOG_CORE
1782 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1784 Watchdog driver for the built in watchdog hardware in a PIC32.
1786 Configuration bits must be set appropriately for the watchdog to be
1787 controlled by this driver.
1789 To compile this driver as a loadable module, choose M here.
1790 The module will be called pic32-wdt.
1793 tristate "Microchip PIC32 Deadman Timer"
1794 select WATCHDOG_CORE
1795 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1797 Watchdog driver for PIC32 instruction fetch counting timer. This specific
1798 timer is typically be used in misson critical and safety critical
1799 applications, where any single failure of the software functionality
1800 and sequencing must be detected.
1802 To compile this driver as a loadable module, choose M here.
1803 The module will be called pic32-dmt.
1805 # PARISC Architecture
1807 # POWERPC Architecture
1810 tristate "GE Watchdog Timer"
1813 Watchdog timer found in a number of GE single board computers.
1816 bool "MPC52xx Watchdog Timer"
1817 depends on PPC_MPC52xx || COMPILE_TEST
1819 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1822 tristate "MPC8xxx Platform Watchdog Timer"
1823 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1824 select WATCHDOG_CORE
1826 This driver is for a SoC level watchdog that exists on some
1827 Freescale PowerPC processors. So far this driver supports:
1832 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1835 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1836 depends on MV64X60 || COMPILE_TEST
1839 tristate "PIKA FPGA Watchdog"
1840 depends on WARP || (PPC64 && COMPILE_TEST)
1843 This enables the watchdog in the PIKA FPGA. Currently used on
1847 tristate "PowerPC Book-E Watchdog Timer"
1848 depends on BOOKE || 4xx
1849 select WATCHDOG_CORE
1851 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1852 MPC85xx SOCs and the IBM PowerPC 440.
1854 Please see Documentation/watchdog/watchdog-api.rst for
1857 config BOOKE_WDT_DEFAULT_TIMEOUT
1858 int "PowerPC Book-E Watchdog Timer Default Timeout"
1859 depends on BOOKE_WDT
1860 default 38 if PPC_FSL_BOOK3E
1861 range 0 63 if PPC_FSL_BOOK3E
1862 default 3 if !PPC_FSL_BOOK3E
1863 range 0 3 if !PPC_FSL_BOOK3E
1865 Select the default watchdog timer period to be used by the PowerPC
1866 Book-E watchdog driver. A watchdog "event" occurs when the bit
1867 position represented by this number transitions from zero to one.
1869 For Freescale Book-E processors, this is a number between 0 and 63.
1870 For other Book-E processors, this is a number between 0 and 3.
1872 The value can be overridden by the wdt_period command-line parameter.
1875 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1876 select WATCHDOG_CORE
1877 depends on GPIOLIB || COMPILE_TEST
1879 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1881 The driver can also be built as a module. If so, the module will be
1884 If unsure select N here.
1886 # PPC64 Architecture
1888 config WATCHDOG_RTAS
1889 tristate "RTAS watchdog"
1892 This driver adds watchdog support for the RTAS watchdog.
1894 To compile this driver as a module, choose M here. The module
1895 will be called wdrtas.
1899 config DIAG288_WATCHDOG
1900 tristate "System z diag288 Watchdog"
1902 select WATCHDOG_CORE
1904 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1905 provide a virtual watchdog timer to their guest that cause a
1906 user define Control Program command to be executed after a
1908 LPAR provides a very similar interface. This driver handles
1911 To compile this driver as a module, choose M here. The module
1912 will be called diag288_wdt.
1914 # SUPERH (sh + sh64) Architecture
1917 tristate "SuperH Watchdog"
1918 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1919 select WATCHDOG_CORE
1921 This driver adds watchdog support for the integrated watchdog in the
1922 SuperH processors. If you have one of these processors and wish
1923 to have watchdog support enabled, say Y, otherwise say N.
1925 As a side note, saying Y here will automatically boost HZ to 1000
1926 so that the timer has a chance to clear the overflow counter. On
1927 slower systems (such as the SH-2 and SH-3) this will likely yield
1928 some performance issues. As such, the WDT should be avoided here
1929 unless it is absolutely necessary.
1931 To compile this driver as a module, choose M here: the
1932 module will be called shwdt.
1934 # SPARC Architecture
1936 # SPARC64 Architecture
1938 config WATCHDOG_CP1XXX
1939 tristate "CP1XXX Hardware Watchdog support"
1940 depends on SPARC64 && PCI
1942 This is the driver for the hardware watchdog timers present on
1943 Sun Microsystems CompactPCI models CP1400 and CP1500.
1945 To compile this driver as a module, choose M here: the
1946 module will be called cpwatchdog.
1948 If you do not have a CompactPCI model CP1400 or CP1500, or
1949 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1950 you should say N to this option.
1953 tristate "RIO Hardware Watchdog support"
1954 depends on SPARC64 && PCI
1956 Say Y here to support the hardware watchdog capability on Sun RIO
1957 machines. The watchdog timeout period is normally one minute but
1958 can be changed with a boot-time parameter.
1960 config WATCHDOG_SUN4V
1961 tristate "Sun4v Watchdog support"
1962 select WATCHDOG_CORE
1965 Say Y here to support the hypervisor watchdog capability embedded
1966 in the SPARC sun4v architecture.
1968 To compile this driver as a module, choose M here. The module will
1969 be called sun4v_wdt.
1971 # XTENSA Architecture
1976 tristate "Xen Watchdog support"
1978 select WATCHDOG_CORE
1980 Say Y here to support the hypervisor watchdog capability provided
1981 by Xen 4.0 and newer. The watchdog timeout period is normally one
1982 minute but can be changed with a boot-time parameter.
1985 tristate "UML watchdog"
1986 depends on UML || COMPILE_TEST
1989 # ISA-based Watchdog Cards
1992 comment "ISA-based Watchdog Cards"
1996 tristate "Berkshire Products ISA-PC Watchdog"
1999 This is the driver for the Berkshire Products ISA-PC Watchdog card.
2000 This card simply watches your kernel to make sure it doesn't freeze,
2001 and if it does, it reboots your computer after a certain amount of
2002 time. This driver is like the WDT501 driver but for different
2003 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. The PC
2004 watchdog cards can be ordered from <http://www.berkprod.com/>.
2006 To compile this driver as a module, choose M here: the
2007 module will be called pcwd.
2009 Most people will say N.
2012 tristate "Mixcom Watchdog"
2015 This is a driver for the Mixcom hardware watchdog cards. This
2016 watchdog simply watches your kernel to make sure it doesn't freeze,
2017 and if it does, it reboots your computer after a certain amount of
2020 To compile this driver as a module, choose M here: the
2021 module will be called mixcomwd.
2023 Most people will say N.
2026 tristate "WDT Watchdog timer"
2029 If you have a WDT500P or WDT501P watchdog board, say Y here,
2030 otherwise N. It is not possible to probe for this board, which means
2031 that you have to inform the kernel about the IO port and IRQ that
2032 is needed (you can do this via the io and irq parameters)
2034 To compile this driver as a module, choose M here: the
2035 module will be called wdt.
2038 # PCI-based Watchdog Cards
2041 comment "PCI-based Watchdog Cards"
2044 config PCIPCWATCHDOG
2045 tristate "Berkshire Products PCI-PC Watchdog"
2048 This is the driver for the Berkshire Products PCI-PC Watchdog card.
2049 This card simply watches your kernel to make sure it doesn't freeze,
2050 and if it does, it reboots your computer after a certain amount of
2051 time. The card can also monitor the internal temperature of the PC.
2052 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2054 To compile this driver as a module, choose M here: the
2055 module will be called pcwd_pci.
2057 Most people will say N.
2060 tristate "PCI-WDT500/501 Watchdog timer"
2063 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2065 If you have a PCI-WDT501 watchdog board then you can enable the
2066 temperature sensor by setting the type parameter to 501.
2068 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2069 can do this via the tachometer parameter. Only do this if you have a
2070 fan tachometer actually set up.
2072 To compile this driver as a module, choose M here: the
2073 module will be called wdt_pci.
2076 # USB-based Watchdog Cards
2079 comment "USB-based Watchdog Cards"
2082 config USBPCWATCHDOG
2083 tristate "Berkshire Products USB-PC Watchdog"
2086 This is the driver for the Berkshire Products USB-PC Watchdog card.
2087 This card simply watches your kernel to make sure it doesn't freeze,
2088 and if it does, it reboots your computer after a certain amount of
2089 time. The card can also monitor the internal temperature of the PC.
2090 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2092 To compile this driver as a module, choose M here: the
2093 module will be called pcwd_usb.
2095 Most people will say N.
2097 config KEEMBAY_WATCHDOG
2098 tristate "Intel Keem Bay SoC non-secure watchdog"
2099 depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST)
2100 select WATCHDOG_CORE
2102 This option enable support for an In-secure watchdog timer driver for
2103 Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every
2104 count unit. An interrupt will be triggered, when the count crosses
2105 the thershold configured in the register.
2107 To compile this driver as a module, choose M here: the
2108 module will be called keembay_wdt.