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 BD957XMUF_WATCHDOG
176 tristate "ROHM BD9576MUF and BD9573MUF PMIC Watchdog"
177 depends on MFD_ROHM_BD957XMUF
180 Support for the watchdog in the ROHM BD9576 and BD9573 PMICs.
181 These PMIC ICs contain watchdog block which can be configured
182 to toggle reset line if SoC fails to ping watchdog via GPIO.
184 Say Y here to include support for the ROHM BD9576 or BD9573
185 watchdog. Alternatively say M to compile the driver as a module,
186 which will be called bd9576_wdt.
188 config DA9052_WATCHDOG
189 tristate "Dialog DA9052 Watchdog"
190 depends on PMIC_DA9052 || COMPILE_TEST
193 Support for the watchdog in the DA9052 PMIC. Watchdog trigger
196 Say Y here to include support for the DA9052 watchdog.
197 Alternatively say M to compile the driver as a module,
198 which will be called da9052_wdt.
200 config DA9055_WATCHDOG
201 tristate "Dialog Semiconductor DA9055 Watchdog"
202 depends on MFD_DA9055 || COMPILE_TEST
205 If you say yes here you get support for watchdog on the Dialog
206 Semiconductor DA9055 PMIC.
208 This driver can also be built as a module. If so, the module
209 will be called da9055_wdt.
211 config DA9063_WATCHDOG
212 tristate "Dialog DA9063 Watchdog"
213 depends on MFD_DA9063 || COMPILE_TEST
216 Support for the watchdog in the DA9063 PMIC.
218 This driver can be built as a module. The module name is da9063_wdt.
220 config DA9062_WATCHDOG
221 tristate "Dialog DA9062/61 Watchdog"
222 depends on MFD_DA9062 || COMPILE_TEST
226 Support for the watchdog in the DA9062 and DA9061 PMICs.
228 This driver can be built as a module. The module name is da9062_wdt.
231 tristate "Watchdog device controlled through GPIO-line"
235 If you say yes here you get support for watchdog device
236 controlled through GPIO-line.
238 config GPIO_WATCHDOG_ARCH_INITCALL
239 bool "Register the watchdog as early as possible"
240 depends on GPIO_WATCHDOG=y
242 In some situations, the default initcall level (module_init)
243 in not early enough in the boot process to avoid the watchdog
245 If you say yes here, the initcall level would be raised to
249 config MENF21BMC_WATCHDOG
250 tristate "MEN 14F021P00 BMC Watchdog"
251 depends on MFD_MENF21BMC || COMPILE_TEST
255 Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
257 This driver can also be built as a module. If so the module
258 will be called menf21bmc_wdt.
260 config MENZ069_WATCHDOG
261 tristate "MEN 16Z069 Watchdog"
265 Say Y here to include support for the MEN 16Z069 Watchdog.
267 This driver can also be built as a module. If so the module
268 will be called menz069_wdt.
271 tristate "ACPI Watchdog Action Table (WDAT)"
276 This driver adds support for systems with ACPI Watchdog Action
277 Table (WDAT) table. Servers typically have this but it can be
278 found on some desktop machines as well. This driver will take
279 over the native iTCO watchdog driver found on many Intel CPUs.
281 To compile this driver as module, choose M here: the module will
284 config WM831X_WATCHDOG
285 tristate "WM831x watchdog"
286 depends on MFD_WM831X
289 Support for the watchdog in the WM831x AudioPlus PMICs. When
290 the watchdog triggers the system will be reset.
292 config WM8350_WATCHDOG
293 tristate "WM8350 watchdog"
294 depends on MFD_WM8350
297 Support for the watchdog in the WM8350 AudioPlus PMIC. When
298 the watchdog triggers the system will be reset.
300 config XILINX_WATCHDOG
301 tristate "Xilinx Watchdog timer"
305 Watchdog driver for the xps_timebase_wdt ip core.
307 To compile this driver as a module, choose M here: the
308 module will be called of_xilinx_wdt.
310 config ZIIRAVE_WATCHDOG
311 tristate "Zodiac RAVE Watchdog Timer"
315 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
318 To compile this driver as a module, choose M here: the
319 module will be called ziirave_wdt.
321 config RAVE_SP_WATCHDOG
322 tristate "RAVE SP Watchdog timer"
323 depends on RAVE_SP_CORE
324 depends on NVMEM || !NVMEM
327 Support for the watchdog on RAVE SP device.
330 tristate "Mellanox Watchdog"
331 depends on MELLANOX_PLATFORM
335 This is the driver for the hardware watchdog on Mellanox systems.
336 If you are going to use it, say Y here, otherwise N.
337 This driver can be used together with the watchdog daemon.
338 It can also watch your kernel to make sure it doesn't freeze,
339 and if it does, it reboots your system after a certain amount of
342 To compile this driver as a module, choose M here: the
343 module will be called mlx-wdt.
345 config SL28CPLD_WATCHDOG
346 tristate "Kontron sl28cpld Watchdog"
347 depends on MFD_SL28CPLD || COMPILE_TEST
350 Say Y here to include support for the watchdog timer
351 on the Kontron sl28 CPLD.
353 To compile this driver as a module, choose M here: the
354 module will be called sl28cpld_wdt.
360 config ARM_SP805_WATCHDOG
361 tristate "ARM SP805 Watchdog"
362 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
365 ARM Primecell SP805 Watchdog timer. This will reboot your system when
366 the timeout is reached.
368 config ARM_SBSA_WATCHDOG
369 tristate "ARM SBSA Generic Watchdog"
371 depends on ARM_ARCH_TIMER
374 ARM SBSA Generic Watchdog has two stage timeouts:
375 the first signal (WS0) is for alerting the system by interrupt,
376 the second one (WS1) is a real hardware reset.
377 More details: ARM DEN0029B - Server Base System Architecture (SBSA)
379 This driver can operate ARM SBSA Generic Watchdog as a single stage
380 or a two stages watchdog, it depends on the module parameter "action".
382 Note: the maximum timeout in the two stages mode is half of that in
383 the single stage mode.
385 To compile this driver as module, choose M here: The module
386 will be called sbsa_gwdt.
388 config ARMADA_37XX_WATCHDOG
389 tristate "Armada 37xx watchdog"
390 depends on ARCH_MVEBU || COMPILE_TEST
395 Say Y here to include support for the watchdog timer found on
396 Marvell Armada 37xx SoCs.
397 To compile this driver as a module, choose M here: the
398 module will be called armada_37xx_wdt.
400 config ASM9260_WATCHDOG
401 tristate "Alphascale ASM9260 watchdog"
402 depends on MACH_ASM9260 || COMPILE_TEST
405 select RESET_CONTROLLER
407 Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your
408 system when the timeout is reached.
410 config AT91RM9200_WATCHDOG
411 tristate "AT91RM9200 watchdog"
412 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
414 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
415 system when the timeout is reached.
417 config AT91SAM9X_WATCHDOG
418 tristate "AT91SAM9X / AT91CAP9 watchdog"
419 depends on ARCH_AT91 || COMPILE_TEST
422 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
423 reboot your system when the timeout is reached.
425 config SAMA5D4_WATCHDOG
426 tristate "Atmel SAMA5D4 Watchdog Timer"
427 depends on ARCH_AT91 || COMPILE_TEST
430 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
431 Its Watchdog Timer Mode Register can be written more than once.
432 This will reboot your system when the timeout is reached.
434 config CADENCE_WATCHDOG
435 tristate "Cadence Watchdog Timer"
439 Say Y here if you want to include support for the watchdog
440 timer in the Xilinx Zynq.
442 config 21285_WATCHDOG
443 tristate "DC21285 watchdog"
444 depends on FOOTBRIDGE
446 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
447 here if you wish to use this. Alternatively say M to compile the
448 driver as a module, which will be called wdt285.
450 This driver does not work on all machines. In particular, early CATS
451 boards have hardware problems that will cause the machine to simply
452 lock up if the watchdog fires.
454 "If in doubt, leave it out" - say N.
457 tristate "NetWinder WB83C977 watchdog"
458 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
460 Say Y here to include support for the WB977 watchdog included in
461 NetWinder machines. Alternatively say M to compile the driver as
462 a module, which will be called wdt977.
464 Not sure? It's safe to say N.
466 config FTWDT010_WATCHDOG
467 tristate "Faraday Technology FTWDT010 watchdog"
468 depends on ARM || COMPILE_TEST
472 Say Y here if to include support for the Faraday Technology
473 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
476 To compile this driver as a module, choose M here: the
477 module will be called ftwdt010_wdt.
479 config IXP4XX_WATCHDOG
480 tristate "IXP4xx Watchdog"
481 depends on ARCH_IXP4XX
483 Say Y here if to include support for the watchdog timer
484 in the Intel IXP4xx network processors. This driver can
485 be built as a module by choosing M. The module will
486 be called ixp4xx_wdt.
488 Note: The internal IXP4xx watchdog does a soft CPU reset
489 which doesn't reset any peripherals. There are circumstances
490 where the watchdog will fail to reset the board correctly
491 (e.g., if the boot ROM is in an unreadable state).
493 Say N if you are unsure.
495 config S3C2410_WATCHDOG
496 tristate "S3C2410 Watchdog"
497 depends on ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || \
500 select MFD_SYSCON if ARCH_EXYNOS
502 Watchdog timer block in the Samsung SoCs. This will reboot
503 the system when the timer expires with the watchdog enabled.
505 The driver is limited by the speed of the system's PCLK
506 signal, so with reasonably fast systems (PCLK around 50-66MHz)
507 then watchdog intervals of over approximately 20seconds are
510 The driver can be built as a module by choosing M, and will
511 be called s3c2410_wdt
513 config SA1100_WATCHDOG
514 tristate "SA1100/PXA2xx watchdog"
515 depends on ARCH_SA1100 || ARCH_PXA
517 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
518 reboot your system when timeout is reached.
520 NOTE: once enabled, this timer cannot be disabled.
522 To compile this driver as a module, choose M here: the
523 module will be called sa1100_wdt.
526 tristate "Synopsys DesignWare watchdog"
530 Say Y here if to include support for the Synopsys DesignWare
531 watchdog timer found in many chips.
532 To compile this driver as a module, choose M here: the
533 module will be called dw_wdt.
535 config EP93XX_WATCHDOG
536 tristate "EP93xx Watchdog"
537 depends on ARCH_EP93XX || COMPILE_TEST
540 Say Y here if to include support for the watchdog timer
541 embedded in the Cirrus Logic EP93xx family of devices.
543 To compile this driver as a module, choose M here: the
544 module will be called ep93xx_wdt.
547 tristate "OMAP Watchdog"
548 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
551 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
552 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
554 config PNX4008_WATCHDOG
555 tristate "LPC32XX Watchdog"
556 depends on ARCH_LPC32XX || COMPILE_TEST
559 Say Y here if to include support for the watchdog timer
560 in the LPC32XX processor.
561 This driver can be built as a module by choosing M. The module
562 will be called pnx4008_wdt.
564 Say N if you are unsure.
567 tristate "IOP Watchdog"
568 depends on ARCH_IOP13XX
569 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
571 Say Y here if to include support for the watchdog timer
572 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
573 be built as a module by choosing M. The module will
576 Note: The IOP13XX watchdog does an Internal Bus Reset which will
577 affect both cores and the peripherals of the IOP. The ATU-X
578 and/or ATUe configuration registers will remain intact, but if
579 operating as an Root Complex and/or Central Resource, the PCI-X
580 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
582 config DAVINCI_WATCHDOG
583 tristate "DaVinci watchdog"
584 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
587 Say Y here if to include support for the watchdog timer
588 in the DaVinci DM644x/DM646x or Keystone processors.
589 To compile this driver as a module, choose M here: the
590 module will be called davinci_wdt.
592 NOTE: once enabled, this timer cannot be disabled.
593 Say N if you are unsure.
595 config K3_RTI_WATCHDOG
596 tristate "Texas Instruments K3 RTI watchdog"
597 depends on ARCH_K3 || COMPILE_TEST
600 Say Y here if you want to include support for the K3 watchdog
601 timer (RTI module) available in the K3 generation of processors.
603 config ORION_WATCHDOG
604 tristate "Orion watchdog"
605 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST
609 Say Y here if to include support for the watchdog timer
610 in the Marvell Orion5x and Kirkwood ARM SoCs.
611 To compile this driver as a module, choose M here: the
612 module will be called orion_wdt.
614 config RN5T618_WATCHDOG
615 tristate "Ricoh RN5T618 watchdog"
616 depends on MFD_RN5T618 || COMPILE_TEST
619 If you say yes here you get support for watchdog on the Ricoh
622 This driver can also be built as a module. If so, the module
623 will be called rn5t618_wdt.
625 config SUNXI_WATCHDOG
626 tristate "Allwinner SoCs watchdog support"
627 depends on ARCH_SUNXI || COMPILE_TEST
630 Say Y here to include support for the watchdog timer
632 To compile this driver as a module, choose M here: the
633 module will be called sunxi_wdt.
635 config NPCM7XX_WATCHDOG
636 tristate "Nuvoton NPCM750 watchdog"
637 depends on ARCH_NPCM || COMPILE_TEST
638 default y if ARCH_NPCM7XX
641 Say Y here to include Watchdog timer support for the
642 watchdog embedded into the NPCM7xx.
643 This watchdog is used to reset the system and thus cannot be
644 compiled as a module.
646 config TWL4030_WATCHDOG
647 tristate "TWL4030 Watchdog"
648 depends on TWL4030_CORE
651 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
652 watchdog timer support for TWL4030 chips.
654 config STMP3XXX_RTC_WATCHDOG
655 tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
656 depends on RTC_DRV_STMP || COMPILE_TEST
659 Say Y here to include support for the watchdog timer inside
660 the RTC for the STMP37XX/378X or i.MX23/28 SoC.
661 To compile this driver as a module, choose M here: the
662 module will be called stmp3xxx_rtc_wdt.
664 config TS4800_WATCHDOG
665 tristate "TS-4800 Watchdog"
666 depends on HAS_IOMEM && OF
667 depends on SOC_IMX51 || COMPILE_TEST
671 Technologic Systems TS-4800 has watchdog timer implemented in
672 an external FPGA. Say Y here if you want to support for the
673 watchdog timer on TS-4800 board.
675 config TS72XX_WATCHDOG
676 tristate "TS-72XX SBC Watchdog"
677 depends on MACH_TS72XX || COMPILE_TEST
680 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
681 watchdog timer implemented in a external CPLD chip. Say Y here
682 if you want to support for the watchdog timer on TS-72XX boards.
684 To compile this driver as a module, choose M here: the
685 module will be called ts72xx_wdt.
687 config MAX63XX_WATCHDOG
688 tristate "Max63xx watchdog"
692 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
694 config MAX77620_WATCHDOG
695 tristate "Maxim Max77620 Watchdog Timer"
696 depends on MFD_MAX77620 || COMPILE_TEST
699 This is the driver for the Max77620 watchdog timer.
700 Say 'Y' here to enable the watchdog timer support for
701 MAX77620 chips. To compile this driver as a module,
702 choose M here: the module will be called max77620_wdt.
705 tristate "IMX2+ Watchdog"
706 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
710 This is the driver for the hardware watchdog
711 on the Freescale IMX2 and later processors.
712 If you have one of these processors and wish to have
713 watchdog support enabled, say Y, otherwise say N.
715 To compile this driver as a module, choose M here: the
716 module will be called imx2_wdt.
719 tristate "IMX SC Watchdog"
720 depends on HAVE_ARM_SMCCC
724 This is the driver for the system controller watchdog
725 on the NXP i.MX SoCs with system controller inside, the
726 watchdog driver will call ARM SMC API and trap into
727 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
728 will request system controller to execute the operations.
729 If you have one of these processors and wish to have
730 watchdog support enabled, say Y, otherwise say N.
732 To compile this driver as a module, choose M here: the
733 module will be called imx_sc_wdt.
736 tristate "IMX7ULP Watchdog"
737 depends on ARCH_MXC || COMPILE_TEST
740 This is the driver for the hardware watchdog on the Freescale
741 IMX7ULP and later processors. If you have one of these
742 processors and wish to have watchdog support enabled,
743 say Y, otherwise say N.
745 To compile this driver as a module, choose M here: the
746 module will be called imx7ulp_wdt.
748 config UX500_WATCHDOG
749 tristate "ST-Ericsson Ux500 watchdog"
750 depends on MFD_DB8500_PRCMU
754 Say Y here to include Watchdog timer support for the watchdog
755 existing in the prcmu of ST-Ericsson Ux500 series platforms.
757 To compile this driver as a module, choose M here: the
758 module will be called ux500_wdt.
761 tristate "Retu watchdog"
765 Retu watchdog driver for Nokia Internet Tablets (770, N800,
766 N810). At least on N800 the watchdog cannot be disabled, so
767 this driver is essential and you should enable it.
769 To compile this driver as a module, choose M here: the
770 module will be called retu_wdt.
773 tristate "MOXART watchdog"
774 depends on ARCH_MOXART || COMPILE_TEST
776 Say Y here to include Watchdog timer support for the watchdog
777 existing on the MOXA ART SoC series platforms.
779 To compile this driver as a module, choose M here: the
780 module will be called moxart_wdt.
782 config ST_LPC_WATCHDOG
783 tristate "STMicroelectronics LPC Watchdog"
784 depends on ARCH_STI || COMPILE_TEST
788 Say Y here to include STMicroelectronics Low Power Controller
789 (LPC) based Watchdog timer support.
791 To compile this driver as a module, choose M here: the
792 module will be called st_lpc_wdt.
794 config TEGRA_WATCHDOG
795 tristate "Tegra watchdog"
796 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
799 Say Y here to include support for the watchdog timer
800 embedded in NVIDIA Tegra SoCs.
802 To compile this driver as a module, choose M here: the
803 module will be called tegra_wdt.
806 tristate "QCOM watchdog"
808 depends on ARCH_QCOM || COMPILE_TEST
811 Say Y here to include Watchdog timer support for the watchdog found
812 on QCOM chipsets. Currently supported targets are the MSM8960,
813 APQ8064, and IPQ8064.
815 To compile this driver as a module, choose M here: the
816 module will be called qcom_wdt.
818 config MESON_GXBB_WATCHDOG
819 tristate "Amlogic Meson GXBB SoCs watchdog support"
820 depends on ARCH_MESON || COMPILE_TEST
823 Say Y here to include support for the watchdog timer
824 in Amlogic Meson GXBB SoCs.
825 To compile this driver as a module, choose M here: the
826 module will be called meson_gxbb_wdt.
828 config MESON_WATCHDOG
829 tristate "Amlogic Meson SoCs watchdog support"
830 depends on ARCH_MESON || COMPILE_TEST
833 Say Y here to include support for the watchdog timer
834 in Amlogic Meson SoCs.
835 To compile this driver as a module, choose M here: the
836 module will be called meson_wdt.
838 config MEDIATEK_WATCHDOG
839 tristate "Mediatek SoCs watchdog support"
840 depends on ARCH_MEDIATEK || COMPILE_TEST
842 select RESET_CONTROLLER
844 Say Y here to include support for the watchdog timer
846 To compile this driver as a module, choose M here: the
847 module will be called mtk_wdt.
849 config DIGICOLOR_WATCHDOG
850 tristate "Conexant Digicolor SoCs watchdog support"
851 depends on ARCH_DIGICOLOR || COMPILE_TEST
854 Say Y here to include support for the watchdog timer
855 in Conexant Digicolor SoCs.
856 To compile this driver as a module, choose M here: the
857 module will be called digicolor_wdt.
859 config ARM_SMC_WATCHDOG
860 tristate "ARM Secure Monitor Call based watchdog support"
861 depends on ARM || ARM64
863 depends on HAVE_ARM_SMCCC
866 Say Y here to include support for a watchdog timer
867 implemented by the EL3 Secure Monitor on ARM platforms.
868 Requires firmware support.
869 To compile this driver as a module, choose M here: the
870 module will be called arm_smc_wdt.
872 config LPC18XX_WATCHDOG
873 tristate "LPC18xx/43xx Watchdog"
874 depends on ARCH_LPC18XX || COMPILE_TEST
878 Say Y here if to include support for the watchdog timer
879 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
881 To compile this driver as a module, choose M here: the
882 module will be called lpc18xx_wdt.
885 tristate "Renesas WDT Watchdog"
886 depends on ARCH_RENESAS || COMPILE_TEST
889 This driver adds watchdog support for the integrated watchdogs in the
890 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
892 config RENESAS_RZAWDT
893 tristate "Renesas RZ/A WDT Watchdog"
894 depends on ARCH_RENESAS || COMPILE_TEST
897 This driver adds watchdog support for the integrated watchdogs in the
898 Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
900 config ASPEED_WATCHDOG
901 tristate "Aspeed BMC watchdog support"
902 depends on ARCH_ASPEED || COMPILE_TEST
905 Say Y here to include support for the watchdog timer
908 This driver is required to reboot the SoC.
910 To compile this driver as a module, choose M here: the
911 module will be called aspeed_wdt.
913 config STM32_WATCHDOG
914 tristate "STM32 Independent WatchDoG (IWDG) support"
915 depends on ARCH_STM32
919 Say Y here to include support for the watchdog timer
922 To compile this driver as a module, choose M here: the
923 module will be called stm32_iwdg.
925 config STPMIC1_WATCHDOG
926 tristate "STPMIC1 PMIC watchdog support"
927 depends on MFD_STPMIC1
930 Say Y here to include watchdog support embedded into STPMIC1 PMIC.
931 If the watchdog timer expires, stpmic1 will shut down all its power
934 To compile this driver as a module, choose M here: the
935 module will be called spmic1_wdt.
937 config UNIPHIER_WATCHDOG
938 tristate "UniPhier watchdog support"
939 depends on ARCH_UNIPHIER || COMPILE_TEST
940 depends on OF && MFD_SYSCON
943 Say Y here to include support watchdog timer embedded
944 into the UniPhier system.
946 To compile this driver as a module, choose M here: the
947 module will be called uniphier_wdt.
949 config RTD119X_WATCHDOG
950 bool "Realtek RTD119x/RTD129x watchdog support"
951 depends on ARCH_REALTEK || COMPILE_TEST
956 Say Y here to include support for the watchdog timer in
957 Realtek RTD1295 SoCs.
960 tristate "Spreadtrum watchdog support"
961 depends on ARCH_SPRD || COMPILE_TEST
964 Say Y here to include watchdog timer supported
965 by Spreadtrum system.
967 config PM8916_WATCHDOG
968 tristate "QCOM PM8916 pmic watchdog"
969 depends on OF && MFD_SPMI_PMIC
972 Say Y here to include support watchdog timer embedded into the
975 config VISCONTI_WATCHDOG
976 tristate "Toshiba Visconti series watchdog support"
977 depends on ARCH_VISCONTI || COMPILE_TEST
980 Say Y here to include support for the watchdog timer in Toshiba
983 # X86 (i386 + ia64 + x86_64) Architecture
986 tristate "Acquire SBC Watchdog Timer"
989 This is the driver for the hardware watchdog on Single Board
990 Computers produced by Acquire Inc (and others). This watchdog
991 simply watches your kernel to make sure it doesn't freeze, and if
992 it does, it reboots your computer after a certain amount of time.
994 To compile this driver as a module, choose M here: the
995 module will be called acquirewdt.
997 Most people will say N.
1000 tristate "Advantech SBC Watchdog Timer"
1003 If you are configuring a Linux kernel for the Advantech single-board
1004 computer, say `Y' here to support its built-in watchdog timer
1005 feature. More information can be found at
1006 <https://www.advantech.com.tw/products/>
1009 tristate "ALi M1535 PMU Watchdog Timer"
1010 depends on X86 && PCI
1012 This is the driver for the hardware watchdog on the ALi M1535 PMU.
1014 To compile this driver as a module, choose M here: the
1015 module will be called alim1535_wdt.
1017 Most people will say N.
1020 tristate "ALi M7101 PMU Computer Watchdog"
1023 This is the driver for the hardware watchdog on the ALi M7101 PMU
1024 as used in the x86 Cobalt servers and also found in some
1025 SPARC Netra servers too.
1027 To compile this driver as a module, choose M here: the
1028 module will be called alim7101_wdt.
1030 Most people will say N.
1033 tristate "WinSystems EBC-C384 Watchdog Timer"
1036 select WATCHDOG_CORE
1038 Enables watchdog timer support for the watchdog timer on the
1039 WinSystems EBC-C384 motherboard. The timeout may be configured via
1040 the timeout module parameter.
1043 tristate "Fintek F718xx, F818xx Super I/O Watchdog"
1046 This is the driver for the hardware watchdog on the Fintek F71808E,
1047 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and
1048 F81866 Super I/O controllers.
1050 You can compile this driver directly into the kernel, or use
1051 it as a module. The module will be called f71808e_wdt.
1054 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
1055 depends on X86 && PCI
1056 select WATCHDOG_CORE
1058 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
1059 (Total Cost of Ownership) timer is a watchdog timer that will reboot
1060 the machine after its expiration. The expiration time can be
1061 configured with the "heartbeat" parameter.
1063 To compile this driver as a module, choose M here: the
1064 module will be called sp5100_tco.
1067 tristate "AMD Geode CS5535/CS5536 Watchdog"
1068 depends on CS5535_MFGPT
1070 This driver enables a watchdog capability built into the
1071 CS5535/CS5536 companion chips for the AMD Geode GX and LX
1072 processors. This watchdog watches your kernel to make sure
1073 it doesn't freeze, and if it does, it reboots your computer after
1074 a certain amount of time.
1076 You can compile this driver directly into the kernel, or use
1077 it as a module. The module will be called geodewdt.
1080 tristate "AMD Elan SC520 processor Watchdog"
1081 depends on MELAN || COMPILE_TEST
1083 This is the driver for the hardware watchdog built in to the
1084 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
1085 This watchdog simply watches your kernel to make sure it doesn't
1086 freeze, and if it does, it reboots your computer after a certain
1089 You can compile this driver directly into the kernel, or use
1090 it as a module. The module will be called sc520_wdt.
1092 config SBC_FITPC2_WATCHDOG
1093 tristate "Compulab SBC-FITPC2 watchdog"
1096 This is the driver for the built-in watchdog timer on the fit-PC2,
1097 fit-PC2i, CM-iAM single-board computers made by Compulab.
1099 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
1100 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
1102 Entering BIOS setup temporary disables watchdog operation regardless to current state,
1103 so system will not be restarted while user in BIOS setup.
1105 Once watchdog was enabled the system will be restarted every
1106 "Watchdog Timer Value" period, so to prevent it user can restart or
1107 disable the watchdog.
1109 To compile this driver as a module, choose M here: the
1110 module will be called sbc_fitpc2_wdt.
1112 Most people will say N.
1115 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1118 Enable support for the watchdog timer on the Eurotech CPU-1220 and
1119 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
1120 information are at <http://www.eurotech.it/>.
1123 tristate "IB700 SBC Watchdog Timer"
1126 This is the driver for the hardware watchdog on the IB700 Single
1127 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
1128 simply watches your kernel to make sure it doesn't freeze, and if
1129 it does, it reboots your computer after a certain amount of time.
1131 This driver is like the WDT501 driver but for slightly different hardware.
1133 To compile this driver as a module, choose M here: the
1134 module will be called ib700wdt.
1136 Most people will say N.
1139 tristate "IBM Automatic Server Restart"
1142 This is the driver for the IBM Automatic Server Restart watchdog
1143 timer built-in into some eServer xSeries machines.
1145 To compile this driver as a module, choose M here: the
1146 module will be called ibmasr.
1149 tristate "ICP Single Board Computer Watchdog Timer"
1152 This is a driver for the hardware watchdog on the ICP Single
1153 Board Computer. This driver is working on (at least) the following
1154 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1156 To compile this driver as a module, choose M here: the
1157 module will be called wafer5823wdt.
1160 tristate "Intel 6300ESB Timer/Watchdog"
1162 select WATCHDOG_CORE
1164 Hardware driver for the watchdog timer built into the Intel
1165 6300ESB controller hub.
1167 To compile this driver as a module, choose M here: the
1168 module will be called i6300esb.
1171 tristate "Intel Atom E6xx Watchdog"
1172 depends on X86 && PCI
1173 select WATCHDOG_CORE
1177 Hardware driver for the watchdog timer built into the Intel
1178 Atom E6XX (TunnelCreek) processor.
1180 To compile this driver as a module, choose M here: the
1181 module will be called ie6xx_wdt.
1183 config INTEL_MID_WATCHDOG
1184 tristate "Intel MID Watchdog Timer"
1185 depends on X86_INTEL_MID
1186 select WATCHDOG_CORE
1188 Watchdog timer driver built into the Intel SCU for Intel MID
1191 This driver currently supports only the watchdog evolution
1192 implementation in SCU, available for Merrifield generation.
1194 To compile this driver as a module, choose M here.
1197 tristate "Intel TCO Timer/Watchdog"
1198 depends on (X86 || IA64) && PCI
1199 select WATCHDOG_CORE
1200 depends on I2C || I2C=n
1201 depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT
1202 select LPC_ICH if !EXPERT
1203 select I2C_I801 if !EXPERT && I2C
1205 Hardware driver for the intel TCO timer based watchdog devices.
1206 These drivers are included in the Intel 82801 I/O Controller
1207 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1210 The TCO (Total Cost of Ownership) timer is a watchdog timer
1211 that will reboot the machine after its second expiration. The
1212 expiration time can be configured with the "heartbeat" parameter.
1214 On some motherboards the driver may fail to reset the chipset's
1215 NO_REBOOT flag which prevents the watchdog from rebooting the
1216 machine. If this is the case you will get a kernel message like
1217 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1219 To compile this driver as a module, choose M here: the
1220 module will be called iTCO_wdt.
1222 config ITCO_VENDOR_SUPPORT
1223 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1226 Add vendor specific support to the intel TCO timer based watchdog
1227 devices. At this moment we only have additional support for some
1228 SuperMicro Inc. motherboards.
1231 tristate "IT8712F (Smart Guardian) Watchdog Timer"
1234 This is the driver for the built-in watchdog timer on the IT8712F
1235 Super I/0 chipset used on many motherboards.
1237 If the driver does not work, then make sure that the game port in
1238 the BIOS is enabled.
1240 To compile this driver as a module, choose M here: the
1241 module will be called it8712f_wdt.
1244 tristate "IT87 Watchdog Timer"
1246 select WATCHDOG_CORE
1248 This is the driver for the hardware watchdog on the ITE IT8607,
1249 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1250 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1251 IT8783 Super I/O chips.
1253 This watchdog simply watches your kernel to make sure it doesn't
1254 freeze, and if it does, it reboots your computer after a certain
1257 To compile this driver as a module, choose M here: the module will
1261 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1262 select WATCHDOG_CORE
1263 depends on X86 && PCI
1265 A software monitoring watchdog and NMI handling driver. This driver
1266 will detect lockups and provide a stack trace. This is a driver that
1267 will only load on an HP ProLiant system with a minimum of iLO2 support.
1268 To compile this driver as a module, choose M here: the module will be
1271 config HPWDT_NMI_DECODING
1272 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1273 depends on HP_WATCHDOG
1276 Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1277 "Generate NMI to System" virtual button. When an NMI is claimed
1278 by the driver, panic is called.
1281 tristate "Kontron COM Watchdog Timer"
1282 depends on MFD_KEMPLD
1283 select WATCHDOG_CORE
1285 Support for the PLD watchdog on some Kontron ETX and COMexpress
1286 (ETXexpress) modules
1288 This driver can also be built as a module. If so, the module will be
1292 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1295 This is a driver for National Semiconductor PC87307/PC97307 hardware
1296 watchdog cards as found on the SC1200. This watchdog is mainly used
1297 for power management purposes and can be used to power down the device
1298 during inactivity periods (includes interrupt activity monitoring).
1300 To compile this driver as a module, choose M here: the
1301 module will be called sc1200wdt.
1303 Most people will say N.
1306 tristate "National Semiconductor SCx200 Watchdog"
1307 depends on SCx200 && PCI
1309 Enable the built-in watchdog timer support on the National
1310 Semiconductor SCx200 processors.
1312 If compiled as a module, it will be called scx200_wdt.
1315 tristate "NS PC87413 watchdog"
1318 This is the driver for the hardware watchdog on the PC87413 chipset
1319 This watchdog simply watches your kernel to make sure it doesn't
1320 freeze, and if it does, it reboots your computer after a certain
1323 To compile this driver as a module, choose M here: the
1324 module will be called pc87413_wdt.
1326 Most people will say N.
1329 tristate "nVidia TCO Timer/Watchdog"
1330 depends on X86 && PCI
1332 Hardware driver for the TCO timer built into the nVidia Hub family
1333 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
1334 watchdog timer that will reboot the machine after its second
1335 expiration. The expiration time can be configured with the
1336 "heartbeat" parameter.
1338 On some motherboards the driver may fail to reset the chipset's
1339 NO_REBOOT flag which prevents the watchdog from rebooting the
1340 machine. If this is the case you will get a kernel message like
1341 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1343 To compile this driver as a module, choose M here: the
1344 module will be called nv_tco.
1347 tristate "RDC R-321x SoC watchdog"
1348 depends on X86_RDC321X || COMPILE_TEST
1351 This is the driver for the built in hardware watchdog
1352 in the RDC R-321x SoC.
1354 To compile this driver as a module, choose M here: the
1355 module will be called rdc321x_wdt.
1358 tristate "SBC-60XX Watchdog Timer"
1361 This driver can be used with the watchdog timer found on some
1362 single board computers, namely the 6010 PII based computer.
1363 It may well work with other cards. It reads port 0x443 to enable
1364 and re-set the watchdog timer, and reads port 0x45 to disable
1365 the watchdog. If you have a card that behave in similar ways,
1366 you can probably make this driver work with your card as well.
1368 You can compile this driver directly into the kernel, or use
1369 it as a module. The module will be called sbc60xxwdt.
1372 tristate "SBC8360 Watchdog Timer"
1376 This is the driver for the hardware watchdog on the SBC8360 Single
1377 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1379 To compile this driver as a module, choose M here: the
1380 module will be called sbc8360.
1382 Most people will say N.
1385 tristate "SBC Nano 7240 Watchdog Timer"
1386 depends on X86_32 && !UML
1388 This is the driver for the hardware watchdog found on the IEI
1389 single board computers EPIC Nano 7240 (and likely others). This
1390 watchdog simply watches your kernel to make sure it doesn't freeze,
1391 and if it does, it reboots your computer after a certain amount of
1394 To compile this driver as a module, choose M here: the
1395 module will be called sbc7240_wdt.
1398 tristate "SMA CPU5 Watchdog"
1402 To compile this driver as a module, choose M here: the
1403 module will be called cpu5wdt.
1405 config SMSC_SCH311X_WDT
1406 tristate "SMSC SCH311X Watchdog Timer"
1409 This is the driver for the hardware watchdog timer on the
1410 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1411 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1414 To compile this driver as a module, choose M here: the
1415 module will be called sch311x_wdt.
1417 config SMSC37B787_WDT
1418 tristate "Winbond SMsC37B787 Watchdog Timer"
1421 This is the driver for the hardware watchdog component on the
1422 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1423 from Vision Systems and maybe others.
1425 This watchdog simply watches your kernel to make sure it doesn't
1426 freeze, and if it does, it reboots your computer after a certain
1429 Usually a userspace daemon will notify the kernel WDT driver that
1430 userspace is still alive, at regular intervals.
1432 To compile this driver as a module, choose M here: the
1433 module will be called smsc37b787_wdt.
1435 Most people will say N.
1438 tristate "TQ-Systems TQMX86 Watchdog Timer"
1440 select WATCHDOG_CORE
1442 This is the driver for the hardware watchdog timer in the TQMX86 IO
1443 controller found on some of their ComExpress Modules.
1445 To compile this driver as a module, choose M here; the module
1446 will be called tqmx86_wdt.
1448 Most people will say N.
1451 tristate "VIA Watchdog Timer"
1452 depends on X86 && PCI
1453 select WATCHDOG_CORE
1455 This is the driver for the hardware watchdog timer on VIA
1456 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1458 To compile this driver as a module, choose M here; the module
1459 will be called via_wdt.
1461 Most people will say N.
1464 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1466 select WATCHDOG_CORE
1468 This is the driver for the hardware watchdog on the following
1470 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1484 This watchdog simply watches your kernel to make sure it doesn't
1485 freeze, and if it does, it reboots your computer after a certain
1488 To compile this driver as a module, choose M here: the
1489 module will be called w83627hf_wdt.
1491 Most people will say N.
1494 tristate "W83877F (EMACS) Watchdog Timer"
1497 This is the driver for the hardware watchdog on the W83877F chipset
1498 as used in EMACS PC-104 motherboards (and likely others). This
1499 watchdog simply watches your kernel to make sure it doesn't freeze,
1500 and if it does, it reboots your computer after a certain amount of
1503 To compile this driver as a module, choose M here: the
1504 module will be called w83877f_wdt.
1506 Most people will say N.
1509 tristate "W83977F (PCM-5335) Watchdog Timer"
1512 This is the driver for the hardware watchdog on the W83977F I/O chip
1513 as used in AAEON's PCM-5335 SBC (and likely others). This
1514 watchdog simply watches your kernel to make sure it doesn't freeze,
1515 and if it does, it reboots your computer after a certain amount of
1518 To compile this driver as a module, choose M here: the
1519 module will be called w83977f_wdt.
1522 tristate "ZF MachZ Watchdog"
1525 If you are using a ZF Micro MachZ processor, say Y here, otherwise
1526 N. This is the driver for the watchdog timer built-in on that
1527 processor using ZF-Logic interface. This watchdog simply watches
1528 your kernel to make sure it doesn't freeze, and if it does, it
1529 reboots your computer after a certain amount of time.
1531 To compile this driver as a module, choose M here: the
1532 module will be called machzwd.
1534 config SBC_EPX_C3_WATCHDOG
1535 tristate "Winsystems SBC EPX-C3 watchdog"
1538 This is the driver for the built-in watchdog timer on the EPX-C3
1539 Single-board computer made by Winsystems, Inc.
1541 *Note*: This hardware watchdog is not probeable and thus there
1542 is no way to know if writing to its IO address will corrupt
1543 your system or have any real effect. The only way to be sure
1544 that this driver does what you want is to make sure you
1545 are running it on an EPX-C3 from Winsystems with the watchdog
1546 timer at IO address 0x1ee and 0x1ef. It will write to both those
1547 IO ports. Basically, the assumption is made that if you compile
1548 this driver into your kernel and/or load it as a module, that you
1549 know what you are doing and that you are in fact running on an
1552 To compile this driver as a module, choose M here: the
1553 module will be called sbc_epx_c3.
1555 config INTEL_MEI_WDT
1556 tristate "Intel MEI iAMT Watchdog"
1557 depends on INTEL_MEI && X86
1558 select WATCHDOG_CORE
1560 A device driver for the Intel MEI iAMT watchdog.
1562 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1563 Whenever the OS hangs or crashes, iAMT will send an event
1564 to any subscriber to this event. The watchdog doesn't reset the
1567 To compile this driver as a module, choose M here:
1568 the module will be called mei_wdt.
1571 tristate "NI 903x/913x Watchdog"
1572 depends on X86 && ACPI
1573 select WATCHDOG_CORE
1575 This is the driver for the watchdog timer on the National Instruments
1576 903x/913x real-time controllers.
1578 To compile this driver as a module, choose M here: the module will be
1582 tristate "NIC7018 Watchdog"
1583 depends on X86 && ACPI
1584 select WATCHDOG_CORE
1586 Support for National Instruments NIC7018 Watchdog.
1588 To compile this driver as a module, choose M here: the module will be
1593 config M54xx_WATCHDOG
1594 tristate "MCF54xx watchdog support"
1597 To compile this driver as a module, choose M here: the
1598 module will be called m54xx_wdt.
1600 # MicroBlaze Architecture
1605 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1606 depends on ATH79 || (ARM && COMPILE_TEST)
1608 Hardware driver for the built-in watchdog timer on the Atheros
1609 AR71XX/AR724X/AR913X SoCs.
1612 tristate "Broadcom BCM47xx Watchdog Timer"
1613 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1614 select WATCHDOG_CORE
1616 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1619 tristate "IDT RC32434 SoC Watchdog Timer"
1620 depends on MIKROTIK_RB532
1622 Hardware driver for the IDT RC32434 SoC built-in
1625 To compile this driver as a module, choose M here: the
1626 module will be called rc32434_wdt.
1629 tristate "Indy/I2 Hardware Watchdog"
1630 depends on SGI_HAS_INDYDOG
1632 Hardware driver for the Indy's/I2's watchdog. This is a
1633 watchdog timer that will reboot the machine after a 60 second
1634 timer expired and no process has written to /dev/watchdog during
1638 tristate "Ingenic jz4740 SoC hardware watchdog"
1640 depends on COMMON_CLK
1641 select WATCHDOG_CORE
1644 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1647 tristate "MTX-1 Hardware Watchdog"
1648 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1650 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1651 will reboot the machine after a 100 seconds timer expired.
1654 tristate "Sibyte SoC hardware watchdog"
1655 depends on CPU_SB1 || (MIPS && COMPILE_TEST)
1657 Watchdog driver for the built in watchdog hardware in Sibyte
1658 SoC processors. There are apparently two watchdog timers
1659 on such processors; this driver supports only the first one,
1660 because currently Linux only supports exporting one watchdog
1663 To compile this driver as a loadable module, choose M here.
1664 The module will be called sb_wdog.
1667 tristate "TI AR7 Watchdog Timer"
1668 depends on AR7 || (MIPS && COMPILE_TEST)
1670 Hardware driver for the TI AR7 Watchdog Timer.
1673 tristate "Toshiba TXx9 Watchdog Timer"
1674 depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
1675 select WATCHDOG_CORE
1677 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1680 tristate "Cavium OCTEON SOC family Watchdog Timer"
1681 depends on CAVIUM_OCTEON_SOC
1683 select WATCHDOG_CORE
1684 select EXPORT_UASM if OCTEON_WDT = m
1686 Hardware driver for OCTEON's on chip watchdog timer.
1687 Enables the watchdog for all cores running Linux. It
1688 installs a NMI handler and pokes the watchdog based on an
1689 interrupt. On first expiration of the watchdog, the
1690 interrupt handler pokes it. The second expiration causes an
1691 NMI that prints a message. The third expiration causes a
1694 When userspace has /dev/watchdog open, no poking is done
1695 from the first interrupt, it is then only poked when the
1699 tristate "Broadcom BCM63xx hardware watchdog"
1702 Watchdog driver for the built in watchdog hardware in Broadcom
1705 To compile this driver as a loadable module, choose M here.
1706 The module will be called bcm63xx_wdt.
1709 tristate "Broadcom BCM2835 hardware watchdog"
1710 depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1711 select WATCHDOG_CORE
1713 Watchdog driver for the built in watchdog hardware in Broadcom
1716 To compile this driver as a loadable module, choose M here.
1717 The module will be called bcm2835_wdt.
1720 tristate "BCM Kona Watchdog"
1721 depends on ARCH_BCM_MOBILE || COMPILE_TEST
1722 select WATCHDOG_CORE
1724 Support for the watchdog timer on the following Broadcom BCM281xx
1725 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1728 Say 'Y' or 'M' here to enable the driver. The module will be called
1731 config BCM_KONA_WDT_DEBUG
1732 bool "DEBUGFS support for BCM Kona Watchdog"
1733 depends on BCM_KONA_WDT
1735 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1736 access to the driver's internal data structures as well as watchdog
1737 timer hardware registres.
1739 If in doubt, say 'N'.
1742 tristate "BCM7038 Watchdog"
1743 select WATCHDOG_CORE
1744 depends on HAS_IOMEM
1745 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1747 Watchdog driver for the built-in hardware in Broadcom 7038 and
1748 later SoCs used in set-top boxes. BCM7038 was made public
1749 during the 2004 CES, and since then, many Broadcom chips use this
1750 watchdog block, including some cable modem chips.
1753 tristate "Imagination Technologies PDC Watchdog Timer"
1754 depends on HAS_IOMEM
1755 depends on MIPS || COMPILE_TEST
1756 select WATCHDOG_CORE
1758 Driver for Imagination Technologies PowerDown Controller
1761 To compile this driver as a loadable module, choose M here.
1762 The module will be called imgpdc_wdt.
1765 tristate "Lantiq SoC watchdog"
1767 select WATCHDOG_CORE
1769 Hardware driver for the Lantiq SoC Watchdog Timer.
1771 config LOONGSON1_WDT
1772 tristate "Loongson1 SoC hardware watchdog"
1773 depends on MACH_LOONGSON32
1774 select WATCHDOG_CORE
1776 Hardware driver for the Loongson1 SoC Watchdog Timer.
1779 tristate "Ralink SoC watchdog"
1780 select WATCHDOG_CORE
1783 Hardware driver for the Ralink SoC Watchdog Timer.
1786 tristate "Mediatek SoC watchdog"
1787 select WATCHDOG_CORE
1788 depends on SOC_MT7620 || SOC_MT7621
1790 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1793 tristate "Microchip PIC32 hardware watchdog"
1794 select WATCHDOG_CORE
1795 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1797 Watchdog driver for the built in watchdog hardware in a PIC32.
1799 Configuration bits must be set appropriately for the watchdog to be
1800 controlled by this driver.
1802 To compile this driver as a loadable module, choose M here.
1803 The module will be called pic32-wdt.
1806 tristate "Microchip PIC32 Deadman Timer"
1807 select WATCHDOG_CORE
1808 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1810 Watchdog driver for PIC32 instruction fetch counting timer. This specific
1811 timer is typically be used in misson critical and safety critical
1812 applications, where any single failure of the software functionality
1813 and sequencing must be detected.
1815 To compile this driver as a loadable module, choose M here.
1816 The module will be called pic32-dmt.
1818 # PARISC Architecture
1820 # POWERPC Architecture
1823 tristate "GE Watchdog Timer"
1826 Watchdog timer found in a number of GE single board computers.
1829 bool "MPC52xx Watchdog Timer"
1830 depends on PPC_MPC52xx || COMPILE_TEST
1832 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1835 tristate "MPC8xxx Platform Watchdog Timer"
1836 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1837 select WATCHDOG_CORE
1839 This driver is for a SoC level watchdog that exists on some
1840 Freescale PowerPC processors. So far this driver supports:
1845 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1848 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1849 depends on MV64X60 || COMPILE_TEST
1852 tristate "PIKA FPGA Watchdog"
1853 depends on WARP || (PPC64 && COMPILE_TEST)
1856 This enables the watchdog in the PIKA FPGA. Currently used on
1860 tristate "PowerPC Book-E Watchdog Timer"
1861 depends on BOOKE || 4xx
1862 select WATCHDOG_CORE
1864 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1865 MPC85xx SOCs and the IBM PowerPC 440.
1867 Please see Documentation/watchdog/watchdog-api.rst for
1870 config BOOKE_WDT_DEFAULT_TIMEOUT
1871 int "PowerPC Book-E Watchdog Timer Default Timeout"
1872 depends on BOOKE_WDT
1873 default 38 if PPC_FSL_BOOK3E
1874 range 0 63 if PPC_FSL_BOOK3E
1875 default 3 if !PPC_FSL_BOOK3E
1876 range 0 3 if !PPC_FSL_BOOK3E
1878 Select the default watchdog timer period to be used by the PowerPC
1879 Book-E watchdog driver. A watchdog "event" occurs when the bit
1880 position represented by this number transitions from zero to one.
1882 For Freescale Book-E processors, this is a number between 0 and 63.
1883 For other Book-E processors, this is a number between 0 and 3.
1885 The value can be overridden by the wdt_period command-line parameter.
1888 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1889 select WATCHDOG_CORE
1890 depends on GPIOLIB || COMPILE_TEST
1892 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1894 The driver can also be built as a module. If so, the module will be
1897 If unsure select N here.
1899 # PPC64 Architecture
1901 config WATCHDOG_RTAS
1902 tristate "RTAS watchdog"
1905 This driver adds watchdog support for the RTAS watchdog.
1907 To compile this driver as a module, choose M here. The module
1908 will be called wdrtas.
1912 config DIAG288_WATCHDOG
1913 tristate "System z diag288 Watchdog"
1915 select WATCHDOG_CORE
1917 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1918 provide a virtual watchdog timer to their guest that cause a
1919 user define Control Program command to be executed after a
1921 LPAR provides a very similar interface. This driver handles
1924 To compile this driver as a module, choose M here. The module
1925 will be called diag288_wdt.
1927 # SUPERH (sh + sh64) Architecture
1930 tristate "SuperH Watchdog"
1931 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1932 select WATCHDOG_CORE
1934 This driver adds watchdog support for the integrated watchdog in the
1935 SuperH processors. If you have one of these processors and wish
1936 to have watchdog support enabled, say Y, otherwise say N.
1938 As a side note, saying Y here will automatically boost HZ to 1000
1939 so that the timer has a chance to clear the overflow counter. On
1940 slower systems (such as the SH-2 and SH-3) this will likely yield
1941 some performance issues. As such, the WDT should be avoided here
1942 unless it is absolutely necessary.
1944 To compile this driver as a module, choose M here: the
1945 module will be called shwdt.
1947 # SPARC Architecture
1949 # SPARC64 Architecture
1951 config WATCHDOG_CP1XXX
1952 tristate "CP1XXX Hardware Watchdog support"
1953 depends on SPARC64 && PCI
1955 This is the driver for the hardware watchdog timers present on
1956 Sun Microsystems CompactPCI models CP1400 and CP1500.
1958 To compile this driver as a module, choose M here: the
1959 module will be called cpwatchdog.
1961 If you do not have a CompactPCI model CP1400 or CP1500, or
1962 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1963 you should say N to this option.
1966 tristate "RIO Hardware Watchdog support"
1967 depends on SPARC64 && PCI
1969 Say Y here to support the hardware watchdog capability on Sun RIO
1970 machines. The watchdog timeout period is normally one minute but
1971 can be changed with a boot-time parameter.
1973 config WATCHDOG_SUN4V
1974 tristate "Sun4v Watchdog support"
1975 select WATCHDOG_CORE
1978 Say Y here to support the hypervisor watchdog capability embedded
1979 in the SPARC sun4v architecture.
1981 To compile this driver as a module, choose M here. The module will
1982 be called sun4v_wdt.
1984 # XTENSA Architecture
1989 tristate "Xen Watchdog support"
1991 select WATCHDOG_CORE
1993 Say Y here to support the hypervisor watchdog capability provided
1994 by Xen 4.0 and newer. The watchdog timeout period is normally one
1995 minute but can be changed with a boot-time parameter.
1998 tristate "UML watchdog"
1999 depends on UML || COMPILE_TEST
2002 # ISA-based Watchdog Cards
2005 comment "ISA-based Watchdog Cards"
2009 tristate "Berkshire Products ISA-PC Watchdog"
2012 This is the driver for the Berkshire Products ISA-PC Watchdog card.
2013 This card simply watches your kernel to make sure it doesn't freeze,
2014 and if it does, it reboots your computer after a certain amount of
2015 time. This driver is like the WDT501 driver but for different
2016 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. The PC
2017 watchdog cards can be ordered from <http://www.berkprod.com/>.
2019 To compile this driver as a module, choose M here: the
2020 module will be called pcwd.
2022 Most people will say N.
2025 tristate "Mixcom Watchdog"
2028 This is a driver for the Mixcom hardware watchdog cards. This
2029 watchdog simply watches your kernel to make sure it doesn't freeze,
2030 and if it does, it reboots your computer after a certain amount of
2033 To compile this driver as a module, choose M here: the
2034 module will be called mixcomwd.
2036 Most people will say N.
2039 tristate "WDT Watchdog timer"
2042 If you have a WDT500P or WDT501P watchdog board, say Y here,
2043 otherwise N. It is not possible to probe for this board, which means
2044 that you have to inform the kernel about the IO port and IRQ that
2045 is needed (you can do this via the io and irq parameters)
2047 To compile this driver as a module, choose M here: the
2048 module will be called wdt.
2051 # PCI-based Watchdog Cards
2054 comment "PCI-based Watchdog Cards"
2057 config PCIPCWATCHDOG
2058 tristate "Berkshire Products PCI-PC Watchdog"
2061 This is the driver for the Berkshire Products PCI-PC Watchdog card.
2062 This card simply watches your kernel to make sure it doesn't freeze,
2063 and if it does, it reboots your computer after a certain amount of
2064 time. The card can also monitor the internal temperature of the PC.
2065 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2067 To compile this driver as a module, choose M here: the
2068 module will be called pcwd_pci.
2070 Most people will say N.
2073 tristate "PCI-WDT500/501 Watchdog timer"
2076 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2078 If you have a PCI-WDT501 watchdog board then you can enable the
2079 temperature sensor by setting the type parameter to 501.
2081 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2082 can do this via the tachometer parameter. Only do this if you have a
2083 fan tachometer actually set up.
2085 To compile this driver as a module, choose M here: the
2086 module will be called wdt_pci.
2089 # USB-based Watchdog Cards
2092 comment "USB-based Watchdog Cards"
2095 config USBPCWATCHDOG
2096 tristate "Berkshire Products USB-PC Watchdog"
2099 This is the driver for the Berkshire Products USB-PC Watchdog card.
2100 This card simply watches your kernel to make sure it doesn't freeze,
2101 and if it does, it reboots your computer after a certain amount of
2102 time. The card can also monitor the internal temperature of the PC.
2103 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2105 To compile this driver as a module, choose M here: the
2106 module will be called pcwd_usb.
2108 Most people will say N.
2110 config KEEMBAY_WATCHDOG
2111 tristate "Intel Keem Bay SoC non-secure watchdog"
2112 depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST)
2113 select WATCHDOG_CORE
2115 This option enable support for an In-secure watchdog timer driver for
2116 Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every
2117 count unit. An interrupt will be triggered, when the count crosses
2118 the thershold configured in the register.
2120 To compile this driver as a module, choose M here: the
2121 module will be called keembay_wdt.