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
212 Support for the watchdog in the DA9062 and DA9061 PMICs.
214 This driver can be built as a module. The module name is da9062_wdt.
217 tristate "Watchdog device controlled through GPIO-line"
221 If you say yes here you get support for watchdog device
222 controlled through GPIO-line.
224 config GPIO_WATCHDOG_ARCH_INITCALL
225 bool "Register the watchdog as early as possible"
226 depends on GPIO_WATCHDOG=y
228 In some situations, the default initcall level (module_init)
229 in not early enough in the boot process to avoid the watchdog
231 If you say yes here, the initcall level would be raised to
235 config MENF21BMC_WATCHDOG
236 tristate "MEN 14F021P00 BMC Watchdog"
237 depends on MFD_MENF21BMC || COMPILE_TEST
241 Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
243 This driver can also be built as a module. If so the module
244 will be called menf21bmc_wdt.
246 config MENZ069_WATCHDOG
247 tristate "MEN 16Z069 Watchdog"
251 Say Y here to include support for the MEN 16Z069 Watchdog.
253 This driver can also be built as a module. If so the module
254 will be called menz069_wdt.
256 config TANGOX_WATCHDOG
257 tristate "Sigma Designs SMP86xx/SMP87xx watchdog"
259 depends on ARCH_TANGO || COMPILE_TEST
262 Support for the watchdog in Sigma Designs SMP86xx (tango3)
263 and SMP87xx (tango4) family chips.
265 This driver can be built as a module. The module name is tangox_wdt.
268 tristate "ACPI Watchdog Action Table (WDAT)"
273 This driver adds support for systems with ACPI Watchdog Action
274 Table (WDAT) table. Servers typically have this but it can be
275 found on some desktop machines as well. This driver will take
276 over the native iTCO watchdog driver found on many Intel CPUs.
278 To compile this driver as module, choose M here: the module will
281 config WM831X_WATCHDOG
282 tristate "WM831x watchdog"
283 depends on MFD_WM831X
286 Support for the watchdog in the WM831x AudioPlus PMICs. When
287 the watchdog triggers the system will be reset.
289 config WM8350_WATCHDOG
290 tristate "WM8350 watchdog"
291 depends on MFD_WM8350
294 Support for the watchdog in the WM8350 AudioPlus PMIC. When
295 the watchdog triggers the system will be reset.
297 config XILINX_WATCHDOG
298 tristate "Xilinx Watchdog timer"
302 Watchdog driver for the xps_timebase_wdt ip core.
304 To compile this driver as a module, choose M here: the
305 module will be called of_xilinx_wdt.
307 config ZIIRAVE_WATCHDOG
308 tristate "Zodiac RAVE Watchdog Timer"
312 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
315 To compile this driver as a module, choose M here: the
316 module will be called ziirave_wdt.
318 config RAVE_SP_WATCHDOG
319 tristate "RAVE SP Watchdog timer"
320 depends on RAVE_SP_CORE
321 depends on NVMEM || !NVMEM
324 Support for the watchdog on RAVE SP device.
327 tristate "Mellanox Watchdog"
328 depends on MELLANOX_PLATFORM
332 This is the driver for the hardware watchdog on Mellanox systems.
333 If you are going to use it, say Y here, otherwise N.
334 This driver can be used together with the watchdog daemon.
335 It can also watch your kernel to make sure it doesn't freeze,
336 and if it does, it reboots your system after a certain amount of
339 To compile this driver as a module, choose M here: the
340 module will be called mlx-wdt.
346 config ARM_SP805_WATCHDOG
347 tristate "ARM SP805 Watchdog"
348 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
351 ARM Primecell SP805 Watchdog timer. This will reboot your system when
352 the timeout is reached.
354 config ARM_SBSA_WATCHDOG
355 tristate "ARM SBSA Generic Watchdog"
357 depends on ARM_ARCH_TIMER
360 ARM SBSA Generic Watchdog has two stage timeouts:
361 the first signal (WS0) is for alerting the system by interrupt,
362 the second one (WS1) is a real hardware reset.
363 More details: ARM DEN0029B - Server Base System Architecture (SBSA)
365 This driver can operate ARM SBSA Generic Watchdog as a single stage
366 or a two stages watchdog, it depends on the module parameter "action".
368 Note: the maximum timeout in the two stages mode is half of that in
369 the single stage mode.
371 To compile this driver as module, choose M here: The module
372 will be called sbsa_gwdt.
374 config ARMADA_37XX_WATCHDOG
375 tristate "Armada 37xx watchdog"
376 depends on ARCH_MVEBU || COMPILE_TEST
380 Say Y here to include support for the watchdog timer found on
381 Marvell Armada 37xx SoCs.
382 To compile this driver as a module, choose M here: the
383 module will be called armada_37xx_wdt.
385 config ASM9260_WATCHDOG
386 tristate "Alphascale ASM9260 watchdog"
387 depends on MACH_ASM9260 || COMPILE_TEST
390 select RESET_CONTROLLER
392 Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your
393 system when the timeout is reached.
395 config AT91RM9200_WATCHDOG
396 tristate "AT91RM9200 watchdog"
397 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
399 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
400 system when the timeout is reached.
402 config AT91SAM9X_WATCHDOG
403 tristate "AT91SAM9X / AT91CAP9 watchdog"
404 depends on ARCH_AT91 || COMPILE_TEST
407 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
408 reboot your system when the timeout is reached.
410 config SAMA5D4_WATCHDOG
411 tristate "Atmel SAMA5D4 Watchdog Timer"
412 depends on ARCH_AT91 || COMPILE_TEST
415 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
416 Its Watchdog Timer Mode Register can be written more than once.
417 This will reboot your system when the timeout is reached.
419 config CADENCE_WATCHDOG
420 tristate "Cadence Watchdog Timer"
424 Say Y here if you want to include support for the watchdog
425 timer in the Xilinx Zynq.
427 config 21285_WATCHDOG
428 tristate "DC21285 watchdog"
429 depends on FOOTBRIDGE
431 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
432 here if you wish to use this. Alternatively say M to compile the
433 driver as a module, which will be called wdt285.
435 This driver does not work on all machines. In particular, early CATS
436 boards have hardware problems that will cause the machine to simply
437 lock up if the watchdog fires.
439 "If in doubt, leave it out" - say N.
442 tristate "NetWinder WB83C977 watchdog"
443 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
445 Say Y here to include support for the WB977 watchdog included in
446 NetWinder machines. Alternatively say M to compile the driver as
447 a module, which will be called wdt977.
449 Not sure? It's safe to say N.
451 config FTWDT010_WATCHDOG
452 tristate "Faraday Technology FTWDT010 watchdog"
453 depends on ARM || COMPILE_TEST
457 Say Y here if to include support for the Faraday Technology
458 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
461 To compile this driver as a module, choose M here: the
462 module will be called ftwdt010_wdt.
464 config IXP4XX_WATCHDOG
465 tristate "IXP4xx Watchdog"
466 depends on ARCH_IXP4XX
468 Say Y here if to include support for the watchdog timer
469 in the Intel IXP4xx network processors. This driver can
470 be built as a module by choosing M. The module will
471 be called ixp4xx_wdt.
473 Note: The internal IXP4xx watchdog does a soft CPU reset
474 which doesn't reset any peripherals. There are circumstances
475 where the watchdog will fail to reset the board correctly
476 (e.g., if the boot ROM is in an unreadable state).
478 Say N if you are unsure.
480 config HAVE_S3C2410_WATCHDOG
483 This will include watchdog timer support for Samsung SoCs. If
484 you want to include watchdog support for any machine, kindly
485 select this in the respective mach-XXXX/Kconfig file.
487 config S3C2410_WATCHDOG
488 tristate "S3C2410 Watchdog"
489 depends on HAVE_S3C2410_WATCHDOG || COMPILE_TEST
491 select MFD_SYSCON if ARCH_EXYNOS
493 Watchdog timer block in the Samsung SoCs. This will reboot
494 the system when the timer expires with the watchdog enabled.
496 The driver is limited by the speed of the system's PCLK
497 signal, so with reasonably fast systems (PCLK around 50-66MHz)
498 then watchdog intervals of over approximately 20seconds are
501 The driver can be built as a module by choosing M, and will
502 be called s3c2410_wdt
504 config SA1100_WATCHDOG
505 tristate "SA1100/PXA2xx watchdog"
506 depends on ARCH_SA1100 || ARCH_PXA
508 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
509 reboot your system when timeout is reached.
511 NOTE: once enabled, this timer cannot be disabled.
513 To compile this driver as a module, choose M here: the
514 module will be called sa1100_wdt.
517 tristate "Synopsys DesignWare watchdog"
521 Say Y here if to include support for the Synopsys DesignWare
522 watchdog timer found in many chips.
523 To compile this driver as a module, choose M here: the
524 module will be called dw_wdt.
526 config EP93XX_WATCHDOG
527 tristate "EP93xx Watchdog"
528 depends on ARCH_EP93XX || COMPILE_TEST
531 Say Y here if to include support for the watchdog timer
532 embedded in the Cirrus Logic EP93xx family of devices.
534 To compile this driver as a module, choose M here: the
535 module will be called ep93xx_wdt.
538 tristate "OMAP Watchdog"
539 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
542 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
543 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
545 config PNX4008_WATCHDOG
546 tristate "LPC32XX Watchdog"
547 depends on ARCH_LPC32XX || COMPILE_TEST
550 Say Y here if to include support for the watchdog timer
551 in the LPC32XX processor.
552 This driver can be built as a module by choosing M. The module
553 will be called pnx4008_wdt.
555 Say N if you are unsure.
558 tristate "IOP Watchdog"
559 depends on ARCH_IOP13XX
560 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
562 Say Y here if to include support for the watchdog timer
563 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
564 be built as a module by choosing M. The module will
567 Note: The IOP13XX watchdog does an Internal Bus Reset which will
568 affect both cores and the peripherals of the IOP. The ATU-X
569 and/or ATUe configuration registers will remain intact, but if
570 operating as an Root Complex and/or Central Resource, the PCI-X
571 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
573 config DAVINCI_WATCHDOG
574 tristate "DaVinci watchdog"
575 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
578 Say Y here if to include support for the watchdog timer
579 in the DaVinci DM644x/DM646x or Keystone processors.
580 To compile this driver as a module, choose M here: the
581 module will be called davinci_wdt.
583 NOTE: once enabled, this timer cannot be disabled.
584 Say N if you are unsure.
586 config ORION_WATCHDOG
587 tristate "Orion watchdog"
588 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || (COMPILE_TEST && !ARCH_EBSA110)
592 Say Y here if to include support for the watchdog timer
593 in the Marvell Orion5x and Kirkwood ARM SoCs.
594 To compile this driver as a module, choose M here: the
595 module will be called orion_wdt.
597 config RN5T618_WATCHDOG
598 tristate "Ricoh RN5T618 watchdog"
599 depends on MFD_RN5T618 || COMPILE_TEST
602 If you say yes here you get support for watchdog on the Ricoh
605 This driver can also be built as a module. If so, the module
606 will be called rn5t618_wdt.
608 config SUNXI_WATCHDOG
609 tristate "Allwinner SoCs watchdog support"
610 depends on ARCH_SUNXI || COMPILE_TEST
613 Say Y here to include support for the watchdog timer
615 To compile this driver as a module, choose M here: the
616 module will be called sunxi_wdt.
618 config COH901327_WATCHDOG
619 bool "ST-Ericsson COH 901 327 watchdog"
620 depends on ARCH_U300 || (ARM && COMPILE_TEST)
621 default y if MACH_U300
624 Say Y here to include Watchdog timer support for the
625 watchdog embedded into the ST-Ericsson U300 series platforms.
626 This watchdog is used to reset the system and thus cannot be
627 compiled as a module.
629 config NPCM7XX_WATCHDOG
630 tristate "Nuvoton NPCM750 watchdog"
631 depends on ARCH_NPCM || COMPILE_TEST
632 default y if ARCH_NPCM7XX
635 Say Y here to include Watchdog timer support for the
636 watchdog embedded into the NPCM7xx.
637 This watchdog is used to reset the system and thus cannot be
638 compiled as a module.
640 config TWL4030_WATCHDOG
641 tristate "TWL4030 Watchdog"
642 depends on TWL4030_CORE
645 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
646 watchdog timer support for TWL4030 chips.
648 config STMP3XXX_RTC_WATCHDOG
649 tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
650 depends on RTC_DRV_STMP || COMPILE_TEST
653 Say Y here to include support for the watchdog timer inside
654 the RTC for the STMP37XX/378X or i.MX23/28 SoC.
655 To compile this driver as a module, choose M here: the
656 module will be called stmp3xxx_rtc_wdt.
658 config TS4800_WATCHDOG
659 tristate "TS-4800 Watchdog"
660 depends on HAS_IOMEM && OF
661 depends on SOC_IMX51 || COMPILE_TEST
665 Technologic Systems TS-4800 has watchdog timer implemented in
666 an external FPGA. Say Y here if you want to support for the
667 watchdog timer on TS-4800 board.
669 config TS72XX_WATCHDOG
670 tristate "TS-72XX SBC Watchdog"
671 depends on MACH_TS72XX || COMPILE_TEST
673 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
674 watchdog timer implemented in a external CPLD chip. Say Y here
675 if you want to support for the watchdog timer on TS-72XX boards.
677 To compile this driver as a module, choose M here: the
678 module will be called ts72xx_wdt.
680 config MAX63XX_WATCHDOG
681 tristate "Max63xx watchdog"
685 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
687 config MAX77620_WATCHDOG
688 tristate "Maxim Max77620 Watchdog Timer"
689 depends on MFD_MAX77620 || COMPILE_TEST
692 This is the driver for the Max77620 watchdog timer.
693 Say 'Y' here to enable the watchdog timer support for
694 MAX77620 chips. To compile this driver as a module,
695 choose M here: the module will be called max77620_wdt.
698 tristate "IMX2+ Watchdog"
699 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
703 This is the driver for the hardware watchdog
704 on the Freescale IMX2 and later processors.
705 If you have one of these processors and wish to have
706 watchdog support enabled, say Y, otherwise say N.
708 To compile this driver as a module, choose M here: the
709 module will be called imx2_wdt.
712 tristate "IMX SC Watchdog"
713 depends on HAVE_ARM_SMCCC
717 This is the driver for the system controller watchdog
718 on the NXP i.MX SoCs with system controller inside, the
719 watchdog driver will call ARM SMC API and trap into
720 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
721 will request system controller to execute the operations.
722 If you have one of these processors and wish to have
723 watchdog support enabled, say Y, otherwise say N.
725 To compile this driver as a module, choose M here: the
726 module will be called imx_sc_wdt.
729 tristate "IMX7ULP Watchdog"
730 depends on ARCH_MXC || COMPILE_TEST
733 This is the driver for the hardware watchdog on the Freescale
734 IMX7ULP and later processors. If you have one of these
735 processors and wish to have watchdog support enabled,
736 say Y, otherwise say N.
738 To compile this driver as a module, choose M here: the
739 module will be called imx7ulp_wdt.
741 config UX500_WATCHDOG
742 tristate "ST-Ericsson Ux500 watchdog"
743 depends on MFD_DB8500_PRCMU
747 Say Y here to include Watchdog timer support for the watchdog
748 existing in the prcmu of ST-Ericsson Ux500 series platforms.
750 To compile this driver as a module, choose M here: the
751 module will be called ux500_wdt.
754 tristate "Retu watchdog"
758 Retu watchdog driver for Nokia Internet Tablets (770, N800,
759 N810). At least on N800 the watchdog cannot be disabled, so
760 this driver is essential and you should enable it.
762 To compile this driver as a module, choose M here: the
763 module will be called retu_wdt.
766 tristate "MOXART watchdog"
767 depends on ARCH_MOXART || COMPILE_TEST
769 Say Y here to include Watchdog timer support for the watchdog
770 existing on the MOXA ART SoC series platforms.
772 To compile this driver as a module, choose M here: the
773 module will be called moxart_wdt.
775 config SIRFSOC_WATCHDOG
776 tristate "SiRFSOC watchdog"
777 depends on ARCH_SIRF || COMPILE_TEST
781 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
782 the watchdog triggers the system will be reset.
784 config ST_LPC_WATCHDOG
785 tristate "STMicroelectronics LPC Watchdog"
786 depends on ARCH_STI || COMPILE_TEST
790 Say Y here to include STMicroelectronics Low Power Controller
791 (LPC) based Watchdog timer support.
793 To compile this driver as a module, choose M here: the
794 module will be called st_lpc_wdt.
796 config TEGRA_WATCHDOG
797 tristate "Tegra watchdog"
798 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
801 Say Y here to include support for the watchdog timer
802 embedded in NVIDIA Tegra SoCs.
804 To compile this driver as a module, choose M here: the
805 module will be called tegra_wdt.
808 tristate "QCOM watchdog"
810 depends on ARCH_QCOM || COMPILE_TEST
813 Say Y here to include Watchdog timer support for the watchdog found
814 on QCOM chipsets. Currently supported targets are the MSM8960,
815 APQ8064, and IPQ8064.
817 To compile this driver as a module, choose M here: the
818 module will be called qcom_wdt.
820 config MESON_GXBB_WATCHDOG
821 tristate "Amlogic Meson GXBB SoCs watchdog support"
822 depends on ARCH_MESON || COMPILE_TEST
825 Say Y here to include support for the watchdog timer
826 in Amlogic Meson GXBB SoCs.
827 To compile this driver as a module, choose M here: the
828 module will be called meson_gxbb_wdt.
830 config MESON_WATCHDOG
831 tristate "Amlogic Meson SoCs watchdog support"
832 depends on ARCH_MESON || COMPILE_TEST
835 Say Y here to include support for the watchdog timer
836 in Amlogic Meson SoCs.
837 To compile this driver as a module, choose M here: the
838 module will be called meson_wdt.
840 config MEDIATEK_WATCHDOG
841 tristate "Mediatek SoCs watchdog support"
842 depends on ARCH_MEDIATEK || COMPILE_TEST
845 Say Y here to include support for the watchdog timer
847 To compile this driver as a module, choose M here: the
848 module will be called mtk_wdt.
850 config DIGICOLOR_WATCHDOG
851 tristate "Conexant Digicolor SoCs watchdog support"
852 depends on ARCH_DIGICOLOR || COMPILE_TEST
855 Say Y here to include support for the watchdog timer
856 in Conexant Digicolor SoCs.
857 To compile this driver as a module, choose M here: the
858 module will be called digicolor_wdt.
860 config LPC18XX_WATCHDOG
861 tristate "LPC18xx/43xx Watchdog"
862 depends on ARCH_LPC18XX || COMPILE_TEST
866 Say Y here if to include support for the watchdog timer
867 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
869 To compile this driver as a module, choose M here: the
870 module will be called lpc18xx_wdt.
872 config ATLAS7_WATCHDOG
873 tristate "CSRatlas7 watchdog"
874 depends on ARCH_ATLAS7 || COMPILE_TEST
876 Say Y here to include Watchdog timer support for the watchdog
877 existing on the CSRatlas7 series platforms.
879 To compile this driver as a module, choose M here: the
880 module will be called atlas7_wdt.
883 tristate "Renesas WDT Watchdog"
884 depends on ARCH_RENESAS || COMPILE_TEST
887 This driver adds watchdog support for the integrated watchdogs in the
888 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
890 config RENESAS_RZAWDT
891 tristate "Renesas RZ/A WDT Watchdog"
892 depends on ARCH_RENESAS || COMPILE_TEST
895 This driver adds watchdog support for the integrated watchdogs in the
896 Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
898 config ASPEED_WATCHDOG
899 tristate "Aspeed BMC watchdog support"
900 depends on ARCH_ASPEED || COMPILE_TEST
903 Say Y here to include support for the watchdog timer
906 This driver is required to reboot the SoC.
908 To compile this driver as a module, choose M here: the
909 module will be called aspeed_wdt.
911 config ZX2967_WATCHDOG
912 tristate "ZTE zx2967 SoCs watchdog support"
916 Say Y here to include support for the watchdog timer
918 To compile this driver as a module, choose M here: the
919 module will be called zx2967_wdt.
921 config STM32_WATCHDOG
922 tristate "STM32 Independent WatchDoG (IWDG) support"
923 depends on ARCH_STM32
927 Say Y here to include support for the watchdog timer
930 To compile this driver as a module, choose M here: the
931 module will be called stm32_iwdg.
933 config STPMIC1_WATCHDOG
934 tristate "STPMIC1 PMIC watchdog support"
935 depends on MFD_STPMIC1
938 Say Y here to include watchdog support embedded into STPMIC1 PMIC.
939 If the watchdog timer expires, stpmic1 will shut down all its power
942 To compile this driver as a module, choose M here: the
943 module will be called spmic1_wdt.
945 config UNIPHIER_WATCHDOG
946 tristate "UniPhier watchdog support"
947 depends on ARCH_UNIPHIER || COMPILE_TEST
948 depends on OF && MFD_SYSCON
951 Say Y here to include support watchdog timer embedded
952 into the UniPhier system.
954 To compile this driver as a module, choose M here: the
955 module will be called uniphier_wdt.
957 config RTD119X_WATCHDOG
958 bool "Realtek RTD119x/RTD129x watchdog support"
959 depends on ARCH_REALTEK || COMPILE_TEST
964 Say Y here to include support for the watchdog timer in
965 Realtek RTD1295 SoCs.
968 tristate "Spreadtrum watchdog support"
969 depends on ARCH_SPRD || COMPILE_TEST
972 Say Y here to include watchdog timer supported
973 by Spreadtrum system.
975 config PM8916_WATCHDOG
976 tristate "QCOM PM8916 pmic watchdog"
977 depends on OF && MFD_SPMI_PMIC
980 Say Y here to include support watchdog timer embedded into the
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 <http://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_SCU_WATCHDOG
1184 bool "Intel SCU Watchdog for Mobile Platforms"
1185 depends on X86_INTEL_MID
1187 Hardware driver for the watchdog time built into the Intel SCU
1188 for Intel Mobile Platforms.
1190 To compile this driver as a module, choose M here.
1192 config INTEL_MID_WATCHDOG
1193 tristate "Intel MID Watchdog Timer"
1194 depends on X86_INTEL_MID
1195 select WATCHDOG_CORE
1197 Watchdog timer driver built into the Intel SCU for Intel MID
1200 This driver currently supports only the watchdog evolution
1201 implementation in SCU, available for Merrifield generation.
1203 To compile this driver as a module, choose M here.
1206 tristate "Intel TCO Timer/Watchdog"
1207 depends on (X86 || IA64) && PCI
1208 select WATCHDOG_CORE
1209 depends on I2C || I2C=n
1210 select LPC_ICH if !EXPERT
1211 select I2C_I801 if !EXPERT && I2C
1213 Hardware driver for the intel TCO timer based watchdog devices.
1214 These drivers are included in the Intel 82801 I/O Controller
1215 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1218 The TCO (Total Cost of Ownership) timer is a watchdog timer
1219 that will reboot the machine after its second expiration. The
1220 expiration time can be configured with the "heartbeat" parameter.
1222 On some motherboards the driver may fail to reset the chipset's
1223 NO_REBOOT flag which prevents the watchdog from rebooting the
1224 machine. If this is the case you will get a kernel message like
1225 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1227 To compile this driver as a module, choose M here: the
1228 module will be called iTCO_wdt.
1230 config ITCO_VENDOR_SUPPORT
1231 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1234 Add vendor specific support to the intel TCO timer based watchdog
1235 devices. At this moment we only have additional support for some
1236 SuperMicro Inc. motherboards.
1239 tristate "IT8712F (Smart Guardian) Watchdog Timer"
1242 This is the driver for the built-in watchdog timer on the IT8712F
1243 Super I/0 chipset used on many motherboards.
1245 If the driver does not work, then make sure that the game port in
1246 the BIOS is enabled.
1248 To compile this driver as a module, choose M here: the
1249 module will be called it8712f_wdt.
1252 tristate "IT87 Watchdog Timer"
1254 select WATCHDOG_CORE
1256 This is the driver for the hardware watchdog on the ITE IT8607,
1257 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1258 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1259 IT8783 Super I/O chips.
1261 This watchdog simply watches your kernel to make sure it doesn't
1262 freeze, and if it does, it reboots your computer after a certain
1265 To compile this driver as a module, choose M here: the module will
1269 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1270 select WATCHDOG_CORE
1271 depends on X86 && PCI
1273 A software monitoring watchdog and NMI handling driver. This driver
1274 will detect lockups and provide a stack trace. This is a driver that
1275 will only load on an HP ProLiant system with a minimum of iLO2 support.
1276 To compile this driver as a module, choose M here: the module will be
1279 config HPWDT_NMI_DECODING
1280 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1281 depends on HP_WATCHDOG
1284 Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1285 "Generate NMI to System" virtual button. When an NMI is claimed
1286 by the driver, panic is called.
1289 tristate "Kontron COM Watchdog Timer"
1290 depends on MFD_KEMPLD
1291 select WATCHDOG_CORE
1293 Support for the PLD watchdog on some Kontron ETX and COMexpress
1294 (ETXexpress) modules
1296 This driver can also be built as a module. If so, the module will be
1300 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1303 This is a driver for National Semiconductor PC87307/PC97307 hardware
1304 watchdog cards as found on the SC1200. This watchdog is mainly used
1305 for power management purposes and can be used to power down the device
1306 during inactivity periods (includes interrupt activity monitoring).
1308 To compile this driver as a module, choose M here: the
1309 module will be called sc1200wdt.
1311 Most people will say N.
1314 tristate "National Semiconductor SCx200 Watchdog"
1315 depends on SCx200 && PCI
1317 Enable the built-in watchdog timer support on the National
1318 Semiconductor SCx200 processors.
1320 If compiled as a module, it will be called scx200_wdt.
1323 tristate "NS PC87413 watchdog"
1326 This is the driver for the hardware watchdog on the PC87413 chipset
1327 This watchdog simply watches your kernel to make sure it doesn't
1328 freeze, and if it does, it reboots your computer after a certain
1331 To compile this driver as a module, choose M here: the
1332 module will be called pc87413_wdt.
1334 Most people will say N.
1337 tristate "nVidia TCO Timer/Watchdog"
1338 depends on X86 && PCI
1340 Hardware driver for the TCO timer built into the nVidia Hub family
1341 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
1342 watchdog timer that will reboot the machine after its second
1343 expiration. The expiration time can be configured with the
1344 "heartbeat" parameter.
1346 On some motherboards the driver may fail to reset the chipset's
1347 NO_REBOOT flag which prevents the watchdog from rebooting the
1348 machine. If this is the case you will get a kernel message like
1349 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1351 To compile this driver as a module, choose M here: the
1352 module will be called nv_tco.
1355 tristate "RDC R-321x SoC watchdog"
1356 depends on X86_RDC321X || COMPILE_TEST
1359 This is the driver for the built in hardware watchdog
1360 in the RDC R-321x SoC.
1362 To compile this driver as a module, choose M here: the
1363 module will be called rdc321x_wdt.
1366 tristate "SBC-60XX Watchdog Timer"
1369 This driver can be used with the watchdog timer found on some
1370 single board computers, namely the 6010 PII based computer.
1371 It may well work with other cards. It reads port 0x443 to enable
1372 and re-set the watchdog timer, and reads port 0x45 to disable
1373 the watchdog. If you have a card that behave in similar ways,
1374 you can probably make this driver work with your card as well.
1376 You can compile this driver directly into the kernel, or use
1377 it as a module. The module will be called sbc60xxwdt.
1380 tristate "SBC8360 Watchdog Timer"
1384 This is the driver for the hardware watchdog on the SBC8360 Single
1385 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1387 To compile this driver as a module, choose M here: the
1388 module will be called sbc8360.
1390 Most people will say N.
1393 tristate "SBC Nano 7240 Watchdog Timer"
1394 depends on X86_32 && !UML
1396 This is the driver for the hardware watchdog found on the IEI
1397 single board computers EPIC Nano 7240 (and likely others). This
1398 watchdog simply watches your kernel to make sure it doesn't freeze,
1399 and if it does, it reboots your computer after a certain amount of
1402 To compile this driver as a module, choose M here: the
1403 module will be called sbc7240_wdt.
1406 tristate "SMA CPU5 Watchdog"
1410 To compile this driver as a module, choose M here: the
1411 module will be called cpu5wdt.
1413 config SMSC_SCH311X_WDT
1414 tristate "SMSC SCH311X Watchdog Timer"
1417 This is the driver for the hardware watchdog timer on the
1418 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1419 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1422 To compile this driver as a module, choose M here: the
1423 module will be called sch311x_wdt.
1425 config SMSC37B787_WDT
1426 tristate "Winbond SMsC37B787 Watchdog Timer"
1429 This is the driver for the hardware watchdog component on the
1430 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1431 from Vision Systems and maybe others.
1433 This watchdog simply watches your kernel to make sure it doesn't
1434 freeze, and if it does, it reboots your computer after a certain
1437 Usually a userspace daemon will notify the kernel WDT driver that
1438 userspace is still alive, at regular intervals.
1440 To compile this driver as a module, choose M here: the
1441 module will be called smsc37b787_wdt.
1443 Most people will say N.
1446 tristate "TQ-Systems TQMX86 Watchdog Timer"
1448 select WATCHDOG_CORE
1450 This is the driver for the hardware watchdog timer in the TQMX86 IO
1451 controller found on some of their ComExpress Modules.
1453 To compile this driver as a module, choose M here; the module
1454 will be called tqmx86_wdt.
1456 Most people will say N.
1459 tristate "VIA Watchdog Timer"
1460 depends on X86 && PCI
1461 select WATCHDOG_CORE
1463 This is the driver for the hardware watchdog timer on VIA
1464 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1466 To compile this driver as a module, choose M here; the module
1467 will be called via_wdt.
1469 Most people will say N.
1472 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1474 select WATCHDOG_CORE
1476 This is the driver for the hardware watchdog on the following
1478 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1492 This watchdog simply watches your kernel to make sure it doesn't
1493 freeze, and if it does, it reboots your computer after a certain
1496 To compile this driver as a module, choose M here: the
1497 module will be called w83627hf_wdt.
1499 Most people will say N.
1502 tristate "W83877F (EMACS) Watchdog Timer"
1505 This is the driver for the hardware watchdog on the W83877F chipset
1506 as used in EMACS PC-104 motherboards (and likely others). This
1507 watchdog simply watches your kernel to make sure it doesn't freeze,
1508 and if it does, it reboots your computer after a certain amount of
1511 To compile this driver as a module, choose M here: the
1512 module will be called w83877f_wdt.
1514 Most people will say N.
1517 tristate "W83977F (PCM-5335) Watchdog Timer"
1520 This is the driver for the hardware watchdog on the W83977F I/O chip
1521 as used in AAEON's PCM-5335 SBC (and likely others). This
1522 watchdog simply watches your kernel to make sure it doesn't freeze,
1523 and if it does, it reboots your computer after a certain amount of
1526 To compile this driver as a module, choose M here: the
1527 module will be called w83977f_wdt.
1530 tristate "ZF MachZ Watchdog"
1533 If you are using a ZF Micro MachZ processor, say Y here, otherwise
1534 N. This is the driver for the watchdog timer built-in on that
1535 processor using ZF-Logic interface. This watchdog simply watches
1536 your kernel to make sure it doesn't freeze, and if it does, it
1537 reboots your computer after a certain amount of time.
1539 To compile this driver as a module, choose M here: the
1540 module will be called machzwd.
1542 config SBC_EPX_C3_WATCHDOG
1543 tristate "Winsystems SBC EPX-C3 watchdog"
1546 This is the driver for the built-in watchdog timer on the EPX-C3
1547 Single-board computer made by Winsystems, Inc.
1549 *Note*: This hardware watchdog is not probeable and thus there
1550 is no way to know if writing to its IO address will corrupt
1551 your system or have any real effect. The only way to be sure
1552 that this driver does what you want is to make sure you
1553 are running it on an EPX-C3 from Winsystems with the watchdog
1554 timer at IO address 0x1ee and 0x1ef. It will write to both those
1555 IO ports. Basically, the assumption is made that if you compile
1556 this driver into your kernel and/or load it as a module, that you
1557 know what you are doing and that you are in fact running on an
1560 To compile this driver as a module, choose M here: the
1561 module will be called sbc_epx_c3.
1563 config INTEL_MEI_WDT
1564 tristate "Intel MEI iAMT Watchdog"
1565 depends on INTEL_MEI && X86
1566 select WATCHDOG_CORE
1568 A device driver for the Intel MEI iAMT watchdog.
1570 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1571 Whenever the OS hangs or crashes, iAMT will send an event
1572 to any subscriber to this event. The watchdog doesn't reset the
1575 To compile this driver as a module, choose M here:
1576 the module will be called mei_wdt.
1579 tristate "NI 903x/913x Watchdog"
1580 depends on X86 && ACPI
1581 select WATCHDOG_CORE
1583 This is the driver for the watchdog timer on the National Instruments
1584 903x/913x real-time controllers.
1586 To compile this driver as a module, choose M here: the module will be
1590 tristate "NIC7018 Watchdog"
1591 depends on X86 && ACPI
1592 select WATCHDOG_CORE
1594 Support for National Instruments NIC7018 Watchdog.
1596 To compile this driver as a module, choose M here: the module will be
1601 config M54xx_WATCHDOG
1602 tristate "MCF54xx watchdog support"
1605 To compile this driver as a module, choose M here: the
1606 module will be called m54xx_wdt.
1608 # MicroBlaze Architecture
1613 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1614 depends on ATH79 || (ARM && COMPILE_TEST)
1616 Hardware driver for the built-in watchdog timer on the Atheros
1617 AR71XX/AR724X/AR913X SoCs.
1620 tristate "Broadcom BCM47xx Watchdog Timer"
1621 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1622 select WATCHDOG_CORE
1624 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1627 tristate "IDT RC32434 SoC Watchdog Timer"
1628 depends on MIKROTIK_RB532
1630 Hardware driver for the IDT RC32434 SoC built-in
1633 To compile this driver as a module, choose M here: the
1634 module will be called rc32434_wdt.
1637 tristate "Indy/I2 Hardware Watchdog"
1638 depends on SGI_HAS_INDYDOG
1640 Hardware driver for the Indy's/I2's watchdog. This is a
1641 watchdog timer that will reboot the machine after a 60 second
1642 timer expired and no process has written to /dev/watchdog during
1646 tristate "Ingenic jz4740 SoC hardware watchdog"
1648 depends on COMMON_CLK
1649 select WATCHDOG_CORE
1652 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1655 tristate "MTX-1 Hardware Watchdog"
1656 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1658 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1659 will reboot the machine after a 100 seconds timer expired.
1662 tristate "PNX833x Hardware Watchdog"
1663 depends on SOC_PNX8335
1666 Hardware driver for the PNX833x's watchdog. This is a
1667 watchdog timer that will reboot the machine after a programmable
1668 timer has expired and no process has written to /dev/watchdog during
1672 tristate "Sibyte SoC hardware watchdog"
1673 depends on CPU_SB1 || (MIPS && COMPILE_TEST)
1675 Watchdog driver for the built in watchdog hardware in Sibyte
1676 SoC processors. There are apparently two watchdog timers
1677 on such processors; this driver supports only the first one,
1678 because currently Linux only supports exporting one watchdog
1681 To compile this driver as a loadable module, choose M here.
1682 The module will be called sb_wdog.
1685 tristate "TI AR7 Watchdog Timer"
1686 depends on AR7 || (MIPS && COMPILE_TEST)
1688 Hardware driver for the TI AR7 Watchdog Timer.
1691 tristate "Toshiba TXx9 Watchdog Timer"
1692 depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
1693 select WATCHDOG_CORE
1695 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1698 tristate "Cavium OCTEON SOC family Watchdog Timer"
1699 depends on CAVIUM_OCTEON_SOC
1701 select WATCHDOG_CORE
1702 select EXPORT_UASM if OCTEON_WDT = m
1704 Hardware driver for OCTEON's on chip watchdog timer.
1705 Enables the watchdog for all cores running Linux. It
1706 installs a NMI handler and pokes the watchdog based on an
1707 interrupt. On first expiration of the watchdog, the
1708 interrupt handler pokes it. The second expiration causes an
1709 NMI that prints a message. The third expiration causes a
1712 When userspace has /dev/watchdog open, no poking is done
1713 from the first interrupt, it is then only poked when the
1717 tristate "Broadcom BCM63xx hardware watchdog"
1720 Watchdog driver for the built in watchdog hardware in Broadcom
1723 To compile this driver as a loadable module, choose M here.
1724 The module will be called bcm63xx_wdt.
1727 tristate "Broadcom BCM2835 hardware watchdog"
1728 depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1729 select WATCHDOG_CORE
1731 Watchdog driver for the built in watchdog hardware in Broadcom
1734 To compile this driver as a loadable module, choose M here.
1735 The module will be called bcm2835_wdt.
1738 tristate "BCM Kona Watchdog"
1739 depends on ARCH_BCM_MOBILE || COMPILE_TEST
1740 select WATCHDOG_CORE
1742 Support for the watchdog timer on the following Broadcom BCM281xx
1743 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1746 Say 'Y' or 'M' here to enable the driver. The module will be called
1749 config BCM_KONA_WDT_DEBUG
1750 bool "DEBUGFS support for BCM Kona Watchdog"
1751 depends on BCM_KONA_WDT
1753 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1754 access to the driver's internal data structures as well as watchdog
1755 timer hardware registres.
1757 If in doubt, say 'N'.
1760 tristate "BCM7038 Watchdog"
1761 select WATCHDOG_CORE
1762 depends on HAS_IOMEM
1763 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1765 Watchdog driver for the built-in hardware in Broadcom 7038 and
1766 later SoCs used in set-top boxes. BCM7038 was made public
1767 during the 2004 CES, and since then, many Broadcom chips use this
1768 watchdog block, including some cable modem chips.
1771 tristate "Imagination Technologies PDC Watchdog Timer"
1772 depends on HAS_IOMEM
1773 depends on MIPS || COMPILE_TEST
1774 select WATCHDOG_CORE
1776 Driver for Imagination Technologies PowerDown Controller
1779 To compile this driver as a loadable module, choose M here.
1780 The module will be called imgpdc_wdt.
1783 tristate "Lantiq SoC watchdog"
1785 select WATCHDOG_CORE
1787 Hardware driver for the Lantiq SoC Watchdog Timer.
1789 config LOONGSON1_WDT
1790 tristate "Loongson1 SoC hardware watchdog"
1791 depends on MACH_LOONGSON32
1792 select WATCHDOG_CORE
1794 Hardware driver for the Loongson1 SoC Watchdog Timer.
1797 tristate "Ralink SoC watchdog"
1798 select WATCHDOG_CORE
1801 Hardware driver for the Ralink SoC Watchdog Timer.
1804 tristate "Mediatek SoC watchdog"
1805 select WATCHDOG_CORE
1806 depends on SOC_MT7620 || SOC_MT7621
1808 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1811 tristate "Microchip PIC32 hardware watchdog"
1812 select WATCHDOG_CORE
1813 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1815 Watchdog driver for the built in watchdog hardware in a PIC32.
1817 Configuration bits must be set appropriately for the watchdog to be
1818 controlled by this driver.
1820 To compile this driver as a loadable module, choose M here.
1821 The module will be called pic32-wdt.
1824 tristate "Microchip PIC32 Deadman Timer"
1825 select WATCHDOG_CORE
1826 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1828 Watchdog driver for PIC32 instruction fetch counting timer. This specific
1829 timer is typically be used in misson critical and safety critical
1830 applications, where any single failure of the software functionality
1831 and sequencing must be detected.
1833 To compile this driver as a loadable module, choose M here.
1834 The module will be called pic32-dmt.
1836 # PARISC Architecture
1838 # POWERPC Architecture
1841 tristate "GE Watchdog Timer"
1844 Watchdog timer found in a number of GE single board computers.
1847 bool "MPC52xx Watchdog Timer"
1848 depends on PPC_MPC52xx || COMPILE_TEST
1850 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1853 tristate "MPC8xxx Platform Watchdog Timer"
1854 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1855 select WATCHDOG_CORE
1857 This driver is for a SoC level watchdog that exists on some
1858 Freescale PowerPC processors. So far this driver supports:
1863 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1866 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1867 depends on MV64X60 || COMPILE_TEST
1870 tristate "PIKA FPGA Watchdog"
1871 depends on WARP || (PPC64 && COMPILE_TEST)
1874 This enables the watchdog in the PIKA FPGA. Currently used on
1878 tristate "PowerPC Book-E Watchdog Timer"
1879 depends on BOOKE || 4xx
1880 select WATCHDOG_CORE
1882 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1883 MPC85xx SOCs and the IBM PowerPC 440.
1885 Please see Documentation/watchdog/watchdog-api.rst for
1888 config BOOKE_WDT_DEFAULT_TIMEOUT
1889 int "PowerPC Book-E Watchdog Timer Default Timeout"
1890 depends on BOOKE_WDT
1891 default 38 if PPC_FSL_BOOK3E
1892 range 0 63 if PPC_FSL_BOOK3E
1893 default 3 if !PPC_FSL_BOOK3E
1894 range 0 3 if !PPC_FSL_BOOK3E
1896 Select the default watchdog timer period to be used by the PowerPC
1897 Book-E watchdog driver. A watchdog "event" occurs when the bit
1898 position represented by this number transitions from zero to one.
1900 For Freescale Book-E processors, this is a number between 0 and 63.
1901 For other Book-E processors, this is a number between 0 and 3.
1903 The value can be overridden by the wdt_period command-line parameter.
1906 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1907 select WATCHDOG_CORE
1908 depends on GPIOLIB || COMPILE_TEST
1910 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1912 The driver can also be built as a module. If so, the module will be
1915 If unsure select N here.
1917 # PPC64 Architecture
1919 config WATCHDOG_RTAS
1920 tristate "RTAS watchdog"
1923 This driver adds watchdog support for the RTAS watchdog.
1925 To compile this driver as a module, choose M here. The module
1926 will be called wdrtas.
1930 config DIAG288_WATCHDOG
1931 tristate "System z diag288 Watchdog"
1933 select WATCHDOG_CORE
1935 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1936 provide a virtual watchdog timer to their guest that cause a
1937 user define Control Program command to be executed after a
1939 LPAR provides a very similar interface. This driver handles
1942 To compile this driver as a module, choose M here. The module
1943 will be called diag288_wdt.
1945 # SUPERH (sh + sh64) Architecture
1948 tristate "SuperH Watchdog"
1949 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1950 select WATCHDOG_CORE
1952 This driver adds watchdog support for the integrated watchdog in the
1953 SuperH processors. If you have one of these processors and wish
1954 to have watchdog support enabled, say Y, otherwise say N.
1956 As a side note, saying Y here will automatically boost HZ to 1000
1957 so that the timer has a chance to clear the overflow counter. On
1958 slower systems (such as the SH-2 and SH-3) this will likely yield
1959 some performance issues. As such, the WDT should be avoided here
1960 unless it is absolutely necessary.
1962 To compile this driver as a module, choose M here: the
1963 module will be called shwdt.
1965 # SPARC Architecture
1967 # SPARC64 Architecture
1969 config WATCHDOG_CP1XXX
1970 tristate "CP1XXX Hardware Watchdog support"
1971 depends on SPARC64 && PCI
1973 This is the driver for the hardware watchdog timers present on
1974 Sun Microsystems CompactPCI models CP1400 and CP1500.
1976 To compile this driver as a module, choose M here: the
1977 module will be called cpwatchdog.
1979 If you do not have a CompactPCI model CP1400 or CP1500, or
1980 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1981 you should say N to this option.
1984 tristate "RIO Hardware Watchdog support"
1985 depends on SPARC64 && PCI
1987 Say Y here to support the hardware watchdog capability on Sun RIO
1988 machines. The watchdog timeout period is normally one minute but
1989 can be changed with a boot-time parameter.
1991 config WATCHDOG_SUN4V
1992 tristate "Sun4v Watchdog support"
1993 select WATCHDOG_CORE
1996 Say Y here to support the hypervisor watchdog capability embedded
1997 in the SPARC sun4v architecture.
1999 To compile this driver as a module, choose M here. The module will
2000 be called sun4v_wdt.
2002 # XTENSA Architecture
2007 tristate "Xen Watchdog support"
2009 select WATCHDOG_CORE
2011 Say Y here to support the hypervisor watchdog capability provided
2012 by Xen 4.0 and newer. The watchdog timeout period is normally one
2013 minute but can be changed with a boot-time parameter.
2016 tristate "UML watchdog"
2017 depends on UML || COMPILE_TEST
2020 # ISA-based Watchdog Cards
2023 comment "ISA-based Watchdog Cards"
2027 tristate "Berkshire Products ISA-PC Watchdog"
2030 This is the driver for the Berkshire Products ISA-PC Watchdog card.
2031 This card simply watches your kernel to make sure it doesn't freeze,
2032 and if it does, it reboots your computer after a certain amount of
2033 time. This driver is like the WDT501 driver but for different
2034 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. The PC
2035 watchdog cards can be ordered from <http://www.berkprod.com/>.
2037 To compile this driver as a module, choose M here: the
2038 module will be called pcwd.
2040 Most people will say N.
2043 tristate "Mixcom Watchdog"
2046 This is a driver for the Mixcom hardware watchdog cards. This
2047 watchdog simply watches your kernel to make sure it doesn't freeze,
2048 and if it does, it reboots your computer after a certain amount of
2051 To compile this driver as a module, choose M here: the
2052 module will be called mixcomwd.
2054 Most people will say N.
2057 tristate "WDT Watchdog timer"
2060 If you have a WDT500P or WDT501P watchdog board, say Y here,
2061 otherwise N. It is not possible to probe for this board, which means
2062 that you have to inform the kernel about the IO port and IRQ that
2063 is needed (you can do this via the io and irq parameters)
2065 To compile this driver as a module, choose M here: the
2066 module will be called wdt.
2069 # PCI-based Watchdog Cards
2072 comment "PCI-based Watchdog Cards"
2075 config PCIPCWATCHDOG
2076 tristate "Berkshire Products PCI-PC Watchdog"
2079 This is the driver for the Berkshire Products PCI-PC Watchdog card.
2080 This card simply watches your kernel to make sure it doesn't freeze,
2081 and if it does, it reboots your computer after a certain amount of
2082 time. The card can also monitor the internal temperature of the PC.
2083 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2085 To compile this driver as a module, choose M here: the
2086 module will be called pcwd_pci.
2088 Most people will say N.
2091 tristate "PCI-WDT500/501 Watchdog timer"
2094 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2096 If you have a PCI-WDT501 watchdog board then you can enable the
2097 temperature sensor by setting the type parameter to 501.
2099 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2100 can do this via the tachometer parameter. Only do this if you have a
2101 fan tachometer actually set up.
2103 To compile this driver as a module, choose M here: the
2104 module will be called wdt_pci.
2107 # USB-based Watchdog Cards
2110 comment "USB-based Watchdog Cards"
2113 config USBPCWATCHDOG
2114 tristate "Berkshire Products USB-PC Watchdog"
2117 This is the driver for the Berkshire Products USB-PC Watchdog card.
2118 This card simply watches your kernel to make sure it doesn't freeze,
2119 and if it does, it reboots your computer after a certain amount of
2120 time. The card can also monitor the internal temperature of the PC.
2121 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2123 To compile this driver as a module, choose M here: the
2124 module will be called pcwd_usb.
2126 Most people will say N.