1 # SPDX-License-Identifier: GPL-2.0-only
4 # Watchdog device configuration
8 bool "Watchdog Timer Support"
10 If you say Y here (and to one of the following options) and create a
11 character special file /dev/watchdog with major number 10 and minor
12 number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:
13 subsequently opening the file and then failing to write to it for
14 longer than 1 minute will result in rebooting the machine. This
15 could be useful for a networked machine that needs to come back
16 on-line as fast as possible after a lock-up. There's both a watchdog
17 implementation entirely in software (which can sometimes fail to
18 reboot the machine) and a driver for hardware watchdog boards, which
19 are more robust and can also keep track of the temperature inside
20 your computer. For details, read
21 <file:Documentation/watchdog/watchdog-api.rst> in the kernel source.
23 The watchdog is usually used together with the watchdog daemon
24 which is available from
25 <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can
26 also monitor NFS connections and can reboot the machine when the process
34 tristate "WatchDog Timer Driver Core"
36 Say Y here if you want to use the new watchdog timer driver core.
37 This driver provides a framework for all watchdog timer drivers
38 and gives them the /dev/watchdog interface (and later also the
41 config WATCHDOG_NOWAYOUT
42 bool "Disable watchdog shutdown on close"
44 The default watchdog behaviour (which you get if you say N here) is
45 to stop the timer if the process managing it closes the file
46 /dev/watchdog. It's always remotely possible that this process might
47 get killed. If you say Y here, the watchdog cannot be stopped once
50 config WATCHDOG_HANDLE_BOOT_ENABLED
51 bool "Update boot-enabled watchdog until userspace takes over"
54 The default watchdog behaviour (which you get if you say Y here) is
55 to ping watchdog devices that were enabled before the driver has
56 been loaded until control is taken over from userspace using the
57 /dev/watchdog file. If you say N here, the kernel will not update
58 the watchdog on its own. Thus if your userspace does not start fast
59 enough your device will reboot.
61 config WATCHDOG_OPEN_TIMEOUT
62 int "Timeout value for opening watchdog device"
65 The maximum time, in seconds, for which the watchdog framework takes
66 care of pinging a hardware watchdog. A value of 0 means infinite. The
67 value set here can be overridden by the commandline parameter
68 "watchdog.open_timeout".
71 bool "Read different watchdog information through sysfs"
73 Say Y here if you want to enable watchdog device status read through
76 comment "Watchdog Pretimeout Governors"
78 config WATCHDOG_PRETIMEOUT_GOV
79 bool "Enable watchdog pretimeout governors"
80 depends on WATCHDOG_CORE
82 The option allows to select watchdog pretimeout governors.
84 config WATCHDOG_PRETIMEOUT_GOV_SEL
86 depends on WATCHDOG_PRETIMEOUT_GOV
88 select WATCHDOG_PRETIMEOUT_GOV_PANIC if WATCHDOG_PRETIMEOUT_GOV_NOOP=n
90 if WATCHDOG_PRETIMEOUT_GOV
92 config WATCHDOG_PRETIMEOUT_GOV_NOOP
93 tristate "Noop watchdog pretimeout governor"
94 depends on WATCHDOG_CORE
97 Noop watchdog pretimeout governor, only an informational
98 message is added to kernel log buffer.
100 config WATCHDOG_PRETIMEOUT_GOV_PANIC
101 tristate "Panic watchdog pretimeout governor"
102 depends on WATCHDOG_CORE
103 default WATCHDOG_CORE
105 Panic watchdog pretimeout governor, on watchdog pretimeout
106 event put the kernel into panic.
109 prompt "Default Watchdog Pretimeout Governor"
110 default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
112 This option selects a default watchdog pretimeout governor.
113 The governor takes its action, if a watchdog is capable
114 to report a pretimeout event.
116 config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP
118 depends on WATCHDOG_PRETIMEOUT_GOV_NOOP
120 Use noop watchdog pretimeout governor by default. If noop
121 governor is selected by a user, write a short message to
122 the kernel log buffer and don't do any system changes.
124 config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
126 depends on WATCHDOG_PRETIMEOUT_GOV_PANIC
128 Use panic watchdog pretimeout governor by default, if
129 a watchdog pretimeout event happens, consider that
130 a watchdog feeder is dead and reboot is unavoidable.
134 endif # WATCHDOG_PRETIMEOUT_GOV
137 # General Watchdog drivers
140 comment "Watchdog Device Drivers"
142 # Architecture Independent
145 tristate "Software watchdog"
148 A software monitoring watchdog. This will fail to reboot your system
149 from some situations that the hardware watchdog will recover
150 from. Equally it's a lot cheaper to install.
152 To compile this driver as a module, choose M here: the
153 module will be called softdog.
155 config SOFT_WATCHDOG_PRETIMEOUT
156 bool "Software watchdog pretimeout governor support"
157 depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV
159 Enable this if you want to use pretimeout governors with the software
160 watchdog. Be aware that governors might affect the watchdog because it
161 is purely software, e.g. the panic governor will stall it!
163 config BD70528_WATCHDOG
164 tristate "ROHM BD70528 PMIC Watchdog"
165 depends on MFD_ROHM_BD70528
168 Support for the watchdog in the ROHM BD70528 PMIC. Watchdog trigger
171 Say Y here to include support for the ROHM BD70528 watchdog.
172 Alternatively say M to compile the driver as a module,
173 which will be called bd70528_wdt.
175 config DA9052_WATCHDOG
176 tristate "Dialog DA9052 Watchdog"
177 depends on PMIC_DA9052 || COMPILE_TEST
180 Support for the watchdog in the DA9052 PMIC. Watchdog trigger
183 Say Y here to include support for the DA9052 watchdog.
184 Alternatively say M to compile the driver as a module,
185 which will be called da9052_wdt.
187 config DA9055_WATCHDOG
188 tristate "Dialog Semiconductor DA9055 Watchdog"
189 depends on MFD_DA9055 || COMPILE_TEST
192 If you say yes here you get support for watchdog on the Dialog
193 Semiconductor DA9055 PMIC.
195 This driver can also be built as a module. If so, the module
196 will be called da9055_wdt.
198 config DA9063_WATCHDOG
199 tristate "Dialog DA9063 Watchdog"
200 depends on MFD_DA9063 || COMPILE_TEST
203 Support for the watchdog in the DA9063 PMIC.
205 This driver can be built as a module. The module name is da9063_wdt.
207 config DA9062_WATCHDOG
208 tristate "Dialog DA9062/61 Watchdog"
209 depends on MFD_DA9062 || COMPILE_TEST
213 Support for the watchdog in the DA9062 and DA9061 PMICs.
215 This driver can be built as a module. The module name is da9062_wdt.
218 tristate "Watchdog device controlled through GPIO-line"
222 If you say yes here you get support for watchdog device
223 controlled through GPIO-line.
225 config GPIO_WATCHDOG_ARCH_INITCALL
226 bool "Register the watchdog as early as possible"
227 depends on GPIO_WATCHDOG=y
229 In some situations, the default initcall level (module_init)
230 in not early enough in the boot process to avoid the watchdog
232 If you say yes here, the initcall level would be raised to
236 config MENF21BMC_WATCHDOG
237 tristate "MEN 14F021P00 BMC Watchdog"
238 depends on MFD_MENF21BMC || COMPILE_TEST
242 Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
244 This driver can also be built as a module. If so the module
245 will be called menf21bmc_wdt.
247 config MENZ069_WATCHDOG
248 tristate "MEN 16Z069 Watchdog"
252 Say Y here to include support for the MEN 16Z069 Watchdog.
254 This driver can also be built as a module. If so the module
255 will be called menz069_wdt.
257 config TANGOX_WATCHDOG
258 tristate "Sigma Designs SMP86xx/SMP87xx watchdog"
260 depends on ARCH_TANGO || COMPILE_TEST
263 Support for the watchdog in Sigma Designs SMP86xx (tango3)
264 and SMP87xx (tango4) family chips.
266 This driver can be built as a module. The module name is tangox_wdt.
269 tristate "ACPI Watchdog Action Table (WDAT)"
274 This driver adds support for systems with ACPI Watchdog Action
275 Table (WDAT) table. Servers typically have this but it can be
276 found on some desktop machines as well. This driver will take
277 over the native iTCO watchdog driver found on many Intel CPUs.
279 To compile this driver as module, choose M here: the module will
282 config WM831X_WATCHDOG
283 tristate "WM831x watchdog"
284 depends on MFD_WM831X
287 Support for the watchdog in the WM831x AudioPlus PMICs. When
288 the watchdog triggers the system will be reset.
290 config WM8350_WATCHDOG
291 tristate "WM8350 watchdog"
292 depends on MFD_WM8350
295 Support for the watchdog in the WM8350 AudioPlus PMIC. When
296 the watchdog triggers the system will be reset.
298 config XILINX_WATCHDOG
299 tristate "Xilinx Watchdog timer"
303 Watchdog driver for the xps_timebase_wdt ip core.
305 To compile this driver as a module, choose M here: the
306 module will be called of_xilinx_wdt.
308 config ZIIRAVE_WATCHDOG
309 tristate "Zodiac RAVE Watchdog Timer"
313 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
316 To compile this driver as a module, choose M here: the
317 module will be called ziirave_wdt.
319 config RAVE_SP_WATCHDOG
320 tristate "RAVE SP Watchdog timer"
321 depends on RAVE_SP_CORE
322 depends on NVMEM || !NVMEM
325 Support for the watchdog on RAVE SP device.
328 tristate "Mellanox Watchdog"
329 depends on MELLANOX_PLATFORM
333 This is the driver for the hardware watchdog on Mellanox systems.
334 If you are going to use it, say Y here, otherwise N.
335 This driver can be used together with the watchdog daemon.
336 It can also watch your kernel to make sure it doesn't freeze,
337 and if it does, it reboots your system after a certain amount of
340 To compile this driver as a module, choose M here: the
341 module will be called mlx-wdt.
347 config ARM_SP805_WATCHDOG
348 tristate "ARM SP805 Watchdog"
349 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
352 ARM Primecell SP805 Watchdog timer. This will reboot your system when
353 the timeout is reached.
355 config ARM_SBSA_WATCHDOG
356 tristate "ARM SBSA Generic Watchdog"
358 depends on ARM_ARCH_TIMER
361 ARM SBSA Generic Watchdog has two stage timeouts:
362 the first signal (WS0) is for alerting the system by interrupt,
363 the second one (WS1) is a real hardware reset.
364 More details: ARM DEN0029B - Server Base System Architecture (SBSA)
366 This driver can operate ARM SBSA Generic Watchdog as a single stage
367 or a two stages watchdog, it depends on the module parameter "action".
369 Note: the maximum timeout in the two stages mode is half of that in
370 the single stage mode.
372 To compile this driver as module, choose M here: The module
373 will be called sbsa_gwdt.
375 config ARMADA_37XX_WATCHDOG
376 tristate "Armada 37xx watchdog"
377 depends on ARCH_MVEBU || COMPILE_TEST
381 Say Y here to include support for the watchdog timer found on
382 Marvell Armada 37xx SoCs.
383 To compile this driver as a module, choose M here: the
384 module will be called armada_37xx_wdt.
386 config ASM9260_WATCHDOG
387 tristate "Alphascale ASM9260 watchdog"
388 depends on MACH_ASM9260 || COMPILE_TEST
391 select RESET_CONTROLLER
393 Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your
394 system when the timeout is reached.
396 config AT91RM9200_WATCHDOG
397 tristate "AT91RM9200 watchdog"
398 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
400 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
401 system when the timeout is reached.
403 config AT91SAM9X_WATCHDOG
404 tristate "AT91SAM9X / AT91CAP9 watchdog"
405 depends on ARCH_AT91 || COMPILE_TEST
408 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
409 reboot your system when the timeout is reached.
411 config SAMA5D4_WATCHDOG
412 tristate "Atmel SAMA5D4 Watchdog Timer"
413 depends on ARCH_AT91 || COMPILE_TEST
416 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
417 Its Watchdog Timer Mode Register can be written more than once.
418 This will reboot your system when the timeout is reached.
420 config CADENCE_WATCHDOG
421 tristate "Cadence Watchdog Timer"
425 Say Y here if you want to include support for the watchdog
426 timer in the Xilinx Zynq.
428 config 21285_WATCHDOG
429 tristate "DC21285 watchdog"
430 depends on FOOTBRIDGE
432 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
433 here if you wish to use this. Alternatively say M to compile the
434 driver as a module, which will be called wdt285.
436 This driver does not work on all machines. In particular, early CATS
437 boards have hardware problems that will cause the machine to simply
438 lock up if the watchdog fires.
440 "If in doubt, leave it out" - say N.
443 tristate "NetWinder WB83C977 watchdog"
444 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
446 Say Y here to include support for the WB977 watchdog included in
447 NetWinder machines. Alternatively say M to compile the driver as
448 a module, which will be called wdt977.
450 Not sure? It's safe to say N.
452 config FTWDT010_WATCHDOG
453 tristate "Faraday Technology FTWDT010 watchdog"
454 depends on ARM || COMPILE_TEST
458 Say Y here if to include support for the Faraday Technology
459 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
462 To compile this driver as a module, choose M here: the
463 module will be called ftwdt010_wdt.
465 config IXP4XX_WATCHDOG
466 tristate "IXP4xx Watchdog"
467 depends on ARCH_IXP4XX
469 Say Y here if to include support for the watchdog timer
470 in the Intel IXP4xx network processors. This driver can
471 be built as a module by choosing M. The module will
472 be called ixp4xx_wdt.
474 Note: The internal IXP4xx watchdog does a soft CPU reset
475 which doesn't reset any peripherals. There are circumstances
476 where the watchdog will fail to reset the board correctly
477 (e.g., if the boot ROM is in an unreadable state).
479 Say N if you are unsure.
481 config HAVE_S3C2410_WATCHDOG
484 This will include watchdog timer support for Samsung SoCs. If
485 you want to include watchdog support for any machine, kindly
486 select this in the respective mach-XXXX/Kconfig file.
488 config S3C2410_WATCHDOG
489 tristate "S3C2410 Watchdog"
490 depends on HAVE_S3C2410_WATCHDOG || COMPILE_TEST
492 select MFD_SYSCON if ARCH_EXYNOS
494 Watchdog timer block in the Samsung SoCs. This will reboot
495 the system when the timer expires with the watchdog enabled.
497 The driver is limited by the speed of the system's PCLK
498 signal, so with reasonably fast systems (PCLK around 50-66MHz)
499 then watchdog intervals of over approximately 20seconds are
502 The driver can be built as a module by choosing M, and will
503 be called s3c2410_wdt
505 config SA1100_WATCHDOG
506 tristate "SA1100/PXA2xx watchdog"
507 depends on ARCH_SA1100 || ARCH_PXA
509 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
510 reboot your system when timeout is reached.
512 NOTE: once enabled, this timer cannot be disabled.
514 To compile this driver as a module, choose M here: the
515 module will be called sa1100_wdt.
518 tristate "Synopsys DesignWare watchdog"
522 Say Y here if to include support for the Synopsys DesignWare
523 watchdog timer found in many chips.
524 To compile this driver as a module, choose M here: the
525 module will be called dw_wdt.
527 config EP93XX_WATCHDOG
528 tristate "EP93xx Watchdog"
529 depends on ARCH_EP93XX || COMPILE_TEST
532 Say Y here if to include support for the watchdog timer
533 embedded in the Cirrus Logic EP93xx family of devices.
535 To compile this driver as a module, choose M here: the
536 module will be called ep93xx_wdt.
539 tristate "OMAP Watchdog"
540 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
543 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
544 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
546 config PNX4008_WATCHDOG
547 tristate "LPC32XX Watchdog"
548 depends on ARCH_LPC32XX || COMPILE_TEST
551 Say Y here if to include support for the watchdog timer
552 in the LPC32XX processor.
553 This driver can be built as a module by choosing M. The module
554 will be called pnx4008_wdt.
556 Say N if you are unsure.
559 tristate "IOP Watchdog"
560 depends on ARCH_IOP13XX
561 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
563 Say Y here if to include support for the watchdog timer
564 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
565 be built as a module by choosing M. The module will
568 Note: The IOP13XX watchdog does an Internal Bus Reset which will
569 affect both cores and the peripherals of the IOP. The ATU-X
570 and/or ATUe configuration registers will remain intact, but if
571 operating as an Root Complex and/or Central Resource, the PCI-X
572 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
574 config DAVINCI_WATCHDOG
575 tristate "DaVinci watchdog"
576 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
579 Say Y here if to include support for the watchdog timer
580 in the DaVinci DM644x/DM646x or Keystone processors.
581 To compile this driver as a module, choose M here: the
582 module will be called davinci_wdt.
584 NOTE: once enabled, this timer cannot be disabled.
585 Say N if you are unsure.
587 config K3_RTI_WATCHDOG
588 tristate "Texas Instruments K3 RTI watchdog"
589 depends on ARCH_K3 || COMPILE_TEST
592 Say Y here if you want to include support for the K3 watchdog
593 timer (RTI module) available in the K3 generation of processors.
595 config ORION_WATCHDOG
596 tristate "Orion watchdog"
597 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || (COMPILE_TEST && !ARCH_EBSA110)
601 Say Y here if to include support for the watchdog timer
602 in the Marvell Orion5x and Kirkwood ARM SoCs.
603 To compile this driver as a module, choose M here: the
604 module will be called orion_wdt.
606 config RN5T618_WATCHDOG
607 tristate "Ricoh RN5T618 watchdog"
608 depends on MFD_RN5T618 || COMPILE_TEST
611 If you say yes here you get support for watchdog on the Ricoh
614 This driver can also be built as a module. If so, the module
615 will be called rn5t618_wdt.
617 config SUNXI_WATCHDOG
618 tristate "Allwinner SoCs watchdog support"
619 depends on ARCH_SUNXI || COMPILE_TEST
622 Say Y here to include support for the watchdog timer
624 To compile this driver as a module, choose M here: the
625 module will be called sunxi_wdt.
627 config COH901327_WATCHDOG
628 bool "ST-Ericsson COH 901 327 watchdog"
629 depends on ARCH_U300 || (ARM && COMPILE_TEST)
630 default y if MACH_U300
633 Say Y here to include Watchdog timer support for the
634 watchdog embedded into the ST-Ericsson U300 series platforms.
635 This watchdog is used to reset the system and thus cannot be
636 compiled as a module.
638 config NPCM7XX_WATCHDOG
639 tristate "Nuvoton NPCM750 watchdog"
640 depends on ARCH_NPCM || COMPILE_TEST
641 default y if ARCH_NPCM7XX
644 Say Y here to include Watchdog timer support for the
645 watchdog embedded into the NPCM7xx.
646 This watchdog is used to reset the system and thus cannot be
647 compiled as a module.
649 config TWL4030_WATCHDOG
650 tristate "TWL4030 Watchdog"
651 depends on TWL4030_CORE
654 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
655 watchdog timer support for TWL4030 chips.
657 config STMP3XXX_RTC_WATCHDOG
658 tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
659 depends on RTC_DRV_STMP || COMPILE_TEST
662 Say Y here to include support for the watchdog timer inside
663 the RTC for the STMP37XX/378X or i.MX23/28 SoC.
664 To compile this driver as a module, choose M here: the
665 module will be called stmp3xxx_rtc_wdt.
667 config TS4800_WATCHDOG
668 tristate "TS-4800 Watchdog"
669 depends on HAS_IOMEM && OF
670 depends on SOC_IMX51 || COMPILE_TEST
674 Technologic Systems TS-4800 has watchdog timer implemented in
675 an external FPGA. Say Y here if you want to support for the
676 watchdog timer on TS-4800 board.
678 config TS72XX_WATCHDOG
679 tristate "TS-72XX SBC Watchdog"
680 depends on MACH_TS72XX || COMPILE_TEST
682 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
683 watchdog timer implemented in a external CPLD chip. Say Y here
684 if you want to support for the watchdog timer on TS-72XX boards.
686 To compile this driver as a module, choose M here: the
687 module will be called ts72xx_wdt.
689 config MAX63XX_WATCHDOG
690 tristate "Max63xx watchdog"
694 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
696 config MAX77620_WATCHDOG
697 tristate "Maxim Max77620 Watchdog Timer"
698 depends on MFD_MAX77620 || COMPILE_TEST
701 This is the driver for the Max77620 watchdog timer.
702 Say 'Y' here to enable the watchdog timer support for
703 MAX77620 chips. To compile this driver as a module,
704 choose M here: the module will be called max77620_wdt.
707 tristate "IMX2+ Watchdog"
708 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
712 This is the driver for the hardware watchdog
713 on the Freescale IMX2 and later processors.
714 If you have one of these processors and wish to have
715 watchdog support enabled, say Y, otherwise say N.
717 To compile this driver as a module, choose M here: the
718 module will be called imx2_wdt.
721 tristate "IMX SC Watchdog"
722 depends on HAVE_ARM_SMCCC
726 This is the driver for the system controller watchdog
727 on the NXP i.MX SoCs with system controller inside, the
728 watchdog driver will call ARM SMC API and trap into
729 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
730 will request system controller to execute the operations.
731 If you have one of these processors and wish to have
732 watchdog support enabled, say Y, otherwise say N.
734 To compile this driver as a module, choose M here: the
735 module will be called imx_sc_wdt.
738 tristate "IMX7ULP Watchdog"
739 depends on ARCH_MXC || COMPILE_TEST
742 This is the driver for the hardware watchdog on the Freescale
743 IMX7ULP and later processors. If you have one of these
744 processors and wish to have watchdog support enabled,
745 say Y, otherwise say N.
747 To compile this driver as a module, choose M here: the
748 module will be called imx7ulp_wdt.
750 config UX500_WATCHDOG
751 tristate "ST-Ericsson Ux500 watchdog"
752 depends on MFD_DB8500_PRCMU
756 Say Y here to include Watchdog timer support for the watchdog
757 existing in the prcmu of ST-Ericsson Ux500 series platforms.
759 To compile this driver as a module, choose M here: the
760 module will be called ux500_wdt.
763 tristate "Retu watchdog"
767 Retu watchdog driver for Nokia Internet Tablets (770, N800,
768 N810). At least on N800 the watchdog cannot be disabled, so
769 this driver is essential and you should enable it.
771 To compile this driver as a module, choose M here: the
772 module will be called retu_wdt.
775 tristate "MOXART watchdog"
776 depends on ARCH_MOXART || COMPILE_TEST
778 Say Y here to include Watchdog timer support for the watchdog
779 existing on the MOXA ART SoC series platforms.
781 To compile this driver as a module, choose M here: the
782 module will be called moxart_wdt.
784 config SIRFSOC_WATCHDOG
785 tristate "SiRFSOC watchdog"
786 depends on ARCH_SIRF || COMPILE_TEST
790 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
791 the watchdog triggers the system will be reset.
793 config ST_LPC_WATCHDOG
794 tristate "STMicroelectronics LPC Watchdog"
795 depends on ARCH_STI || COMPILE_TEST
799 Say Y here to include STMicroelectronics Low Power Controller
800 (LPC) based Watchdog timer support.
802 To compile this driver as a module, choose M here: the
803 module will be called st_lpc_wdt.
805 config TEGRA_WATCHDOG
806 tristate "Tegra watchdog"
807 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
810 Say Y here to include support for the watchdog timer
811 embedded in NVIDIA Tegra SoCs.
813 To compile this driver as a module, choose M here: the
814 module will be called tegra_wdt.
817 tristate "QCOM watchdog"
819 depends on ARCH_QCOM || COMPILE_TEST
822 Say Y here to include Watchdog timer support for the watchdog found
823 on QCOM chipsets. Currently supported targets are the MSM8960,
824 APQ8064, and IPQ8064.
826 To compile this driver as a module, choose M here: the
827 module will be called qcom_wdt.
829 config MESON_GXBB_WATCHDOG
830 tristate "Amlogic Meson GXBB SoCs watchdog support"
831 depends on ARCH_MESON || COMPILE_TEST
834 Say Y here to include support for the watchdog timer
835 in Amlogic Meson GXBB SoCs.
836 To compile this driver as a module, choose M here: the
837 module will be called meson_gxbb_wdt.
839 config MESON_WATCHDOG
840 tristate "Amlogic Meson SoCs watchdog support"
841 depends on ARCH_MESON || COMPILE_TEST
844 Say Y here to include support for the watchdog timer
845 in Amlogic Meson SoCs.
846 To compile this driver as a module, choose M here: the
847 module will be called meson_wdt.
849 config MEDIATEK_WATCHDOG
850 tristate "Mediatek SoCs watchdog support"
851 depends on ARCH_MEDIATEK || COMPILE_TEST
853 select RESET_CONTROLLER
855 Say Y here to include support for the watchdog timer
857 To compile this driver as a module, choose M here: the
858 module will be called mtk_wdt.
860 config DIGICOLOR_WATCHDOG
861 tristate "Conexant Digicolor SoCs watchdog support"
862 depends on ARCH_DIGICOLOR || COMPILE_TEST
865 Say Y here to include support for the watchdog timer
866 in Conexant Digicolor SoCs.
867 To compile this driver as a module, choose M here: the
868 module will be called digicolor_wdt.
870 config LPC18XX_WATCHDOG
871 tristate "LPC18xx/43xx Watchdog"
872 depends on ARCH_LPC18XX || COMPILE_TEST
876 Say Y here if to include support for the watchdog timer
877 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
879 To compile this driver as a module, choose M here: the
880 module will be called lpc18xx_wdt.
882 config ATLAS7_WATCHDOG
883 tristate "CSRatlas7 watchdog"
884 depends on ARCH_ATLAS7 || COMPILE_TEST
886 Say Y here to include Watchdog timer support for the watchdog
887 existing on the CSRatlas7 series platforms.
889 To compile this driver as a module, choose M here: the
890 module will be called atlas7_wdt.
893 tristate "Renesas WDT Watchdog"
894 depends on ARCH_RENESAS || COMPILE_TEST
897 This driver adds watchdog support for the integrated watchdogs in the
898 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
900 config RENESAS_RZAWDT
901 tristate "Renesas RZ/A WDT Watchdog"
902 depends on ARCH_RENESAS || COMPILE_TEST
905 This driver adds watchdog support for the integrated watchdogs in the
906 Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
908 config ASPEED_WATCHDOG
909 tristate "Aspeed BMC watchdog support"
910 depends on ARCH_ASPEED || COMPILE_TEST
913 Say Y here to include support for the watchdog timer
916 This driver is required to reboot the SoC.
918 To compile this driver as a module, choose M here: the
919 module will be called aspeed_wdt.
921 config ZX2967_WATCHDOG
922 tristate "ZTE zx2967 SoCs watchdog support"
926 Say Y here to include support for the watchdog timer
928 To compile this driver as a module, choose M here: the
929 module will be called zx2967_wdt.
931 config STM32_WATCHDOG
932 tristate "STM32 Independent WatchDoG (IWDG) support"
933 depends on ARCH_STM32
937 Say Y here to include support for the watchdog timer
940 To compile this driver as a module, choose M here: the
941 module will be called stm32_iwdg.
943 config STPMIC1_WATCHDOG
944 tristate "STPMIC1 PMIC watchdog support"
945 depends on MFD_STPMIC1
948 Say Y here to include watchdog support embedded into STPMIC1 PMIC.
949 If the watchdog timer expires, stpmic1 will shut down all its power
952 To compile this driver as a module, choose M here: the
953 module will be called spmic1_wdt.
955 config UNIPHIER_WATCHDOG
956 tristate "UniPhier watchdog support"
957 depends on ARCH_UNIPHIER || COMPILE_TEST
958 depends on OF && MFD_SYSCON
961 Say Y here to include support watchdog timer embedded
962 into the UniPhier system.
964 To compile this driver as a module, choose M here: the
965 module will be called uniphier_wdt.
967 config RTD119X_WATCHDOG
968 bool "Realtek RTD119x/RTD129x watchdog support"
969 depends on ARCH_REALTEK || COMPILE_TEST
974 Say Y here to include support for the watchdog timer in
975 Realtek RTD1295 SoCs.
978 tristate "Spreadtrum watchdog support"
979 depends on ARCH_SPRD || COMPILE_TEST
982 Say Y here to include watchdog timer supported
983 by Spreadtrum system.
985 config PM8916_WATCHDOG
986 tristate "QCOM PM8916 pmic watchdog"
987 depends on OF && MFD_SPMI_PMIC
990 Say Y here to include support watchdog timer embedded into the
993 # X86 (i386 + ia64 + x86_64) Architecture
996 tristate "Acquire SBC Watchdog Timer"
999 This is the driver for the hardware watchdog on Single Board
1000 Computers produced by Acquire Inc (and others). This watchdog
1001 simply watches your kernel to make sure it doesn't freeze, and if
1002 it does, it reboots your computer after a certain amount of time.
1004 To compile this driver as a module, choose M here: the
1005 module will be called acquirewdt.
1007 Most people will say N.
1009 config ADVANTECH_WDT
1010 tristate "Advantech SBC Watchdog Timer"
1013 If you are configuring a Linux kernel for the Advantech single-board
1014 computer, say `Y' here to support its built-in watchdog timer
1015 feature. More information can be found at
1016 <http://www.advantech.com.tw/products/>
1019 tristate "ALi M1535 PMU Watchdog Timer"
1020 depends on X86 && PCI
1022 This is the driver for the hardware watchdog on the ALi M1535 PMU.
1024 To compile this driver as a module, choose M here: the
1025 module will be called alim1535_wdt.
1027 Most people will say N.
1030 tristate "ALi M7101 PMU Computer Watchdog"
1033 This is the driver for the hardware watchdog on the ALi M7101 PMU
1034 as used in the x86 Cobalt servers and also found in some
1035 SPARC Netra servers too.
1037 To compile this driver as a module, choose M here: the
1038 module will be called alim7101_wdt.
1040 Most people will say N.
1043 tristate "WinSystems EBC-C384 Watchdog Timer"
1046 select WATCHDOG_CORE
1048 Enables watchdog timer support for the watchdog timer on the
1049 WinSystems EBC-C384 motherboard. The timeout may be configured via
1050 the timeout module parameter.
1053 tristate "Fintek F718xx, F818xx Super I/O Watchdog"
1056 This is the driver for the hardware watchdog on the Fintek F71808E,
1057 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and
1058 F81866 Super I/O controllers.
1060 You can compile this driver directly into the kernel, or use
1061 it as a module. The module will be called f71808e_wdt.
1064 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
1065 depends on X86 && PCI
1066 select WATCHDOG_CORE
1068 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
1069 (Total Cost of Ownership) timer is a watchdog timer that will reboot
1070 the machine after its expiration. The expiration time can be
1071 configured with the "heartbeat" parameter.
1073 To compile this driver as a module, choose M here: the
1074 module will be called sp5100_tco.
1077 tristate "AMD Geode CS5535/CS5536 Watchdog"
1078 depends on CS5535_MFGPT
1080 This driver enables a watchdog capability built into the
1081 CS5535/CS5536 companion chips for the AMD Geode GX and LX
1082 processors. This watchdog watches your kernel to make sure
1083 it doesn't freeze, and if it does, it reboots your computer after
1084 a certain amount of time.
1086 You can compile this driver directly into the kernel, or use
1087 it as a module. The module will be called geodewdt.
1090 tristate "AMD Elan SC520 processor Watchdog"
1091 depends on MELAN || COMPILE_TEST
1093 This is the driver for the hardware watchdog built in to the
1094 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
1095 This watchdog simply watches your kernel to make sure it doesn't
1096 freeze, and if it does, it reboots your computer after a certain
1099 You can compile this driver directly into the kernel, or use
1100 it as a module. The module will be called sc520_wdt.
1102 config SBC_FITPC2_WATCHDOG
1103 tristate "Compulab SBC-FITPC2 watchdog"
1106 This is the driver for the built-in watchdog timer on the fit-PC2,
1107 fit-PC2i, CM-iAM single-board computers made by Compulab.
1109 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
1110 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
1112 Entering BIOS setup temporary disables watchdog operation regardless to current state,
1113 so system will not be restarted while user in BIOS setup.
1115 Once watchdog was enabled the system will be restarted every
1116 "Watchdog Timer Value" period, so to prevent it user can restart or
1117 disable the watchdog.
1119 To compile this driver as a module, choose M here: the
1120 module will be called sbc_fitpc2_wdt.
1122 Most people will say N.
1125 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1128 Enable support for the watchdog timer on the Eurotech CPU-1220 and
1129 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
1130 information are at <http://www.eurotech.it/>.
1133 tristate "IB700 SBC Watchdog Timer"
1136 This is the driver for the hardware watchdog on the IB700 Single
1137 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
1138 simply watches your kernel to make sure it doesn't freeze, and if
1139 it does, it reboots your computer after a certain amount of time.
1141 This driver is like the WDT501 driver but for slightly different hardware.
1143 To compile this driver as a module, choose M here: the
1144 module will be called ib700wdt.
1146 Most people will say N.
1149 tristate "IBM Automatic Server Restart"
1152 This is the driver for the IBM Automatic Server Restart watchdog
1153 timer built-in into some eServer xSeries machines.
1155 To compile this driver as a module, choose M here: the
1156 module will be called ibmasr.
1159 tristate "ICP Single Board Computer Watchdog Timer"
1162 This is a driver for the hardware watchdog on the ICP Single
1163 Board Computer. This driver is working on (at least) the following
1164 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1166 To compile this driver as a module, choose M here: the
1167 module will be called wafer5823wdt.
1170 tristate "Intel 6300ESB Timer/Watchdog"
1172 select WATCHDOG_CORE
1174 Hardware driver for the watchdog timer built into the Intel
1175 6300ESB controller hub.
1177 To compile this driver as a module, choose M here: the
1178 module will be called i6300esb.
1181 tristate "Intel Atom E6xx Watchdog"
1182 depends on X86 && PCI
1183 select WATCHDOG_CORE
1187 Hardware driver for the watchdog timer built into the Intel
1188 Atom E6XX (TunnelCreek) processor.
1190 To compile this driver as a module, choose M here: the
1191 module will be called ie6xx_wdt.
1193 config INTEL_SCU_WATCHDOG
1194 bool "Intel SCU Watchdog for Mobile Platforms"
1195 depends on X86_INTEL_MID
1197 Hardware driver for the watchdog time built into the Intel SCU
1198 for Intel Mobile Platforms.
1200 To compile this driver as a module, choose M here.
1202 config INTEL_MID_WATCHDOG
1203 tristate "Intel MID Watchdog Timer"
1204 depends on X86_INTEL_MID
1205 select WATCHDOG_CORE
1207 Watchdog timer driver built into the Intel SCU for Intel MID
1210 This driver currently supports only the watchdog evolution
1211 implementation in SCU, available for Merrifield generation.
1213 To compile this driver as a module, choose M here.
1216 tristate "Intel TCO Timer/Watchdog"
1217 depends on (X86 || IA64) && PCI
1218 select WATCHDOG_CORE
1219 depends on I2C || I2C=n
1220 select LPC_ICH if !EXPERT
1221 select I2C_I801 if !EXPERT && I2C
1223 Hardware driver for the intel TCO timer based watchdog devices.
1224 These drivers are included in the Intel 82801 I/O Controller
1225 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1228 The TCO (Total Cost of Ownership) timer is a watchdog timer
1229 that will reboot the machine after its second expiration. The
1230 expiration time can be configured with the "heartbeat" parameter.
1232 On some motherboards the driver may fail to reset the chipset's
1233 NO_REBOOT flag which prevents the watchdog from rebooting the
1234 machine. If this is the case you will get a kernel message like
1235 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1237 To compile this driver as a module, choose M here: the
1238 module will be called iTCO_wdt.
1240 config ITCO_VENDOR_SUPPORT
1241 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1244 Add vendor specific support to the intel TCO timer based watchdog
1245 devices. At this moment we only have additional support for some
1246 SuperMicro Inc. motherboards.
1249 tristate "IT8712F (Smart Guardian) Watchdog Timer"
1252 This is the driver for the built-in watchdog timer on the IT8712F
1253 Super I/0 chipset used on many motherboards.
1255 If the driver does not work, then make sure that the game port in
1256 the BIOS is enabled.
1258 To compile this driver as a module, choose M here: the
1259 module will be called it8712f_wdt.
1262 tristate "IT87 Watchdog Timer"
1264 select WATCHDOG_CORE
1266 This is the driver for the hardware watchdog on the ITE IT8607,
1267 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1268 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1269 IT8783 Super I/O chips.
1271 This watchdog simply watches your kernel to make sure it doesn't
1272 freeze, and if it does, it reboots your computer after a certain
1275 To compile this driver as a module, choose M here: the module will
1279 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1280 select WATCHDOG_CORE
1281 depends on X86 && PCI
1283 A software monitoring watchdog and NMI handling driver. This driver
1284 will detect lockups and provide a stack trace. This is a driver that
1285 will only load on an HP ProLiant system with a minimum of iLO2 support.
1286 To compile this driver as a module, choose M here: the module will be
1289 config HPWDT_NMI_DECODING
1290 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1291 depends on HP_WATCHDOG
1294 Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1295 "Generate NMI to System" virtual button. When an NMI is claimed
1296 by the driver, panic is called.
1299 tristate "Kontron COM Watchdog Timer"
1300 depends on MFD_KEMPLD
1301 select WATCHDOG_CORE
1303 Support for the PLD watchdog on some Kontron ETX and COMexpress
1304 (ETXexpress) modules
1306 This driver can also be built as a module. If so, the module will be
1310 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1313 This is a driver for National Semiconductor PC87307/PC97307 hardware
1314 watchdog cards as found on the SC1200. This watchdog is mainly used
1315 for power management purposes and can be used to power down the device
1316 during inactivity periods (includes interrupt activity monitoring).
1318 To compile this driver as a module, choose M here: the
1319 module will be called sc1200wdt.
1321 Most people will say N.
1324 tristate "National Semiconductor SCx200 Watchdog"
1325 depends on SCx200 && PCI
1327 Enable the built-in watchdog timer support on the National
1328 Semiconductor SCx200 processors.
1330 If compiled as a module, it will be called scx200_wdt.
1333 tristate "NS PC87413 watchdog"
1336 This is the driver for the hardware watchdog on the PC87413 chipset
1337 This watchdog simply watches your kernel to make sure it doesn't
1338 freeze, and if it does, it reboots your computer after a certain
1341 To compile this driver as a module, choose M here: the
1342 module will be called pc87413_wdt.
1344 Most people will say N.
1347 tristate "nVidia TCO Timer/Watchdog"
1348 depends on X86 && PCI
1350 Hardware driver for the TCO timer built into the nVidia Hub family
1351 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
1352 watchdog timer that will reboot the machine after its second
1353 expiration. The expiration time can be configured with the
1354 "heartbeat" parameter.
1356 On some motherboards the driver may fail to reset the chipset's
1357 NO_REBOOT flag which prevents the watchdog from rebooting the
1358 machine. If this is the case you will get a kernel message like
1359 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1361 To compile this driver as a module, choose M here: the
1362 module will be called nv_tco.
1365 tristate "RDC R-321x SoC watchdog"
1366 depends on X86_RDC321X || COMPILE_TEST
1369 This is the driver for the built in hardware watchdog
1370 in the RDC R-321x SoC.
1372 To compile this driver as a module, choose M here: the
1373 module will be called rdc321x_wdt.
1376 tristate "SBC-60XX Watchdog Timer"
1379 This driver can be used with the watchdog timer found on some
1380 single board computers, namely the 6010 PII based computer.
1381 It may well work with other cards. It reads port 0x443 to enable
1382 and re-set the watchdog timer, and reads port 0x45 to disable
1383 the watchdog. If you have a card that behave in similar ways,
1384 you can probably make this driver work with your card as well.
1386 You can compile this driver directly into the kernel, or use
1387 it as a module. The module will be called sbc60xxwdt.
1390 tristate "SBC8360 Watchdog Timer"
1394 This is the driver for the hardware watchdog on the SBC8360 Single
1395 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1397 To compile this driver as a module, choose M here: the
1398 module will be called sbc8360.
1400 Most people will say N.
1403 tristate "SBC Nano 7240 Watchdog Timer"
1404 depends on X86_32 && !UML
1406 This is the driver for the hardware watchdog found on the IEI
1407 single board computers EPIC Nano 7240 (and likely others). This
1408 watchdog simply watches your kernel to make sure it doesn't freeze,
1409 and if it does, it reboots your computer after a certain amount of
1412 To compile this driver as a module, choose M here: the
1413 module will be called sbc7240_wdt.
1416 tristate "SMA CPU5 Watchdog"
1420 To compile this driver as a module, choose M here: the
1421 module will be called cpu5wdt.
1423 config SMSC_SCH311X_WDT
1424 tristate "SMSC SCH311X Watchdog Timer"
1427 This is the driver for the hardware watchdog timer on the
1428 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1429 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1432 To compile this driver as a module, choose M here: the
1433 module will be called sch311x_wdt.
1435 config SMSC37B787_WDT
1436 tristate "Winbond SMsC37B787 Watchdog Timer"
1439 This is the driver for the hardware watchdog component on the
1440 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1441 from Vision Systems and maybe others.
1443 This watchdog simply watches your kernel to make sure it doesn't
1444 freeze, and if it does, it reboots your computer after a certain
1447 Usually a userspace daemon will notify the kernel WDT driver that
1448 userspace is still alive, at regular intervals.
1450 To compile this driver as a module, choose M here: the
1451 module will be called smsc37b787_wdt.
1453 Most people will say N.
1456 tristate "TQ-Systems TQMX86 Watchdog Timer"
1458 select WATCHDOG_CORE
1460 This is the driver for the hardware watchdog timer in the TQMX86 IO
1461 controller found on some of their ComExpress Modules.
1463 To compile this driver as a module, choose M here; the module
1464 will be called tqmx86_wdt.
1466 Most people will say N.
1469 tristate "VIA Watchdog Timer"
1470 depends on X86 && PCI
1471 select WATCHDOG_CORE
1473 This is the driver for the hardware watchdog timer on VIA
1474 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1476 To compile this driver as a module, choose M here; the module
1477 will be called via_wdt.
1479 Most people will say N.
1482 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1484 select WATCHDOG_CORE
1486 This is the driver for the hardware watchdog on the following
1488 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1502 This watchdog simply watches your kernel to make sure it doesn't
1503 freeze, and if it does, it reboots your computer after a certain
1506 To compile this driver as a module, choose M here: the
1507 module will be called w83627hf_wdt.
1509 Most people will say N.
1512 tristate "W83877F (EMACS) Watchdog Timer"
1515 This is the driver for the hardware watchdog on the W83877F chipset
1516 as used in EMACS PC-104 motherboards (and likely others). This
1517 watchdog simply watches your kernel to make sure it doesn't freeze,
1518 and if it does, it reboots your computer after a certain amount of
1521 To compile this driver as a module, choose M here: the
1522 module will be called w83877f_wdt.
1524 Most people will say N.
1527 tristate "W83977F (PCM-5335) Watchdog Timer"
1530 This is the driver for the hardware watchdog on the W83977F I/O chip
1531 as used in AAEON's PCM-5335 SBC (and likely others). This
1532 watchdog simply watches your kernel to make sure it doesn't freeze,
1533 and if it does, it reboots your computer after a certain amount of
1536 To compile this driver as a module, choose M here: the
1537 module will be called w83977f_wdt.
1540 tristate "ZF MachZ Watchdog"
1543 If you are using a ZF Micro MachZ processor, say Y here, otherwise
1544 N. This is the driver for the watchdog timer built-in on that
1545 processor using ZF-Logic interface. This watchdog simply watches
1546 your kernel to make sure it doesn't freeze, and if it does, it
1547 reboots your computer after a certain amount of time.
1549 To compile this driver as a module, choose M here: the
1550 module will be called machzwd.
1552 config SBC_EPX_C3_WATCHDOG
1553 tristate "Winsystems SBC EPX-C3 watchdog"
1556 This is the driver for the built-in watchdog timer on the EPX-C3
1557 Single-board computer made by Winsystems, Inc.
1559 *Note*: This hardware watchdog is not probeable and thus there
1560 is no way to know if writing to its IO address will corrupt
1561 your system or have any real effect. The only way to be sure
1562 that this driver does what you want is to make sure you
1563 are running it on an EPX-C3 from Winsystems with the watchdog
1564 timer at IO address 0x1ee and 0x1ef. It will write to both those
1565 IO ports. Basically, the assumption is made that if you compile
1566 this driver into your kernel and/or load it as a module, that you
1567 know what you are doing and that you are in fact running on an
1570 To compile this driver as a module, choose M here: the
1571 module will be called sbc_epx_c3.
1573 config INTEL_MEI_WDT
1574 tristate "Intel MEI iAMT Watchdog"
1575 depends on INTEL_MEI && X86
1576 select WATCHDOG_CORE
1578 A device driver for the Intel MEI iAMT watchdog.
1580 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1581 Whenever the OS hangs or crashes, iAMT will send an event
1582 to any subscriber to this event. The watchdog doesn't reset the
1585 To compile this driver as a module, choose M here:
1586 the module will be called mei_wdt.
1589 tristate "NI 903x/913x Watchdog"
1590 depends on X86 && ACPI
1591 select WATCHDOG_CORE
1593 This is the driver for the watchdog timer on the National Instruments
1594 903x/913x real-time controllers.
1596 To compile this driver as a module, choose M here: the module will be
1600 tristate "NIC7018 Watchdog"
1601 depends on X86 && ACPI
1602 select WATCHDOG_CORE
1604 Support for National Instruments NIC7018 Watchdog.
1606 To compile this driver as a module, choose M here: the module will be
1611 config M54xx_WATCHDOG
1612 tristate "MCF54xx watchdog support"
1615 To compile this driver as a module, choose M here: the
1616 module will be called m54xx_wdt.
1618 # MicroBlaze Architecture
1623 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1624 depends on ATH79 || (ARM && COMPILE_TEST)
1626 Hardware driver for the built-in watchdog timer on the Atheros
1627 AR71XX/AR724X/AR913X SoCs.
1630 tristate "Broadcom BCM47xx Watchdog Timer"
1631 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1632 select WATCHDOG_CORE
1634 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1637 tristate "IDT RC32434 SoC Watchdog Timer"
1638 depends on MIKROTIK_RB532
1640 Hardware driver for the IDT RC32434 SoC built-in
1643 To compile this driver as a module, choose M here: the
1644 module will be called rc32434_wdt.
1647 tristate "Indy/I2 Hardware Watchdog"
1648 depends on SGI_HAS_INDYDOG
1650 Hardware driver for the Indy's/I2's watchdog. This is a
1651 watchdog timer that will reboot the machine after a 60 second
1652 timer expired and no process has written to /dev/watchdog during
1656 tristate "Ingenic jz4740 SoC hardware watchdog"
1658 depends on COMMON_CLK
1659 select WATCHDOG_CORE
1662 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1665 tristate "MTX-1 Hardware Watchdog"
1666 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1668 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1669 will reboot the machine after a 100 seconds timer expired.
1672 tristate "PNX833x Hardware Watchdog"
1673 depends on SOC_PNX8335
1676 Hardware driver for the PNX833x's watchdog. This is a
1677 watchdog timer that will reboot the machine after a programmable
1678 timer has expired and no process has written to /dev/watchdog during
1682 tristate "Sibyte SoC hardware watchdog"
1683 depends on CPU_SB1 || (MIPS && COMPILE_TEST)
1685 Watchdog driver for the built in watchdog hardware in Sibyte
1686 SoC processors. There are apparently two watchdog timers
1687 on such processors; this driver supports only the first one,
1688 because currently Linux only supports exporting one watchdog
1691 To compile this driver as a loadable module, choose M here.
1692 The module will be called sb_wdog.
1695 tristate "TI AR7 Watchdog Timer"
1696 depends on AR7 || (MIPS && COMPILE_TEST)
1698 Hardware driver for the TI AR7 Watchdog Timer.
1701 tristate "Toshiba TXx9 Watchdog Timer"
1702 depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
1703 select WATCHDOG_CORE
1705 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1708 tristate "Cavium OCTEON SOC family Watchdog Timer"
1709 depends on CAVIUM_OCTEON_SOC
1711 select WATCHDOG_CORE
1712 select EXPORT_UASM if OCTEON_WDT = m
1714 Hardware driver for OCTEON's on chip watchdog timer.
1715 Enables the watchdog for all cores running Linux. It
1716 installs a NMI handler and pokes the watchdog based on an
1717 interrupt. On first expiration of the watchdog, the
1718 interrupt handler pokes it. The second expiration causes an
1719 NMI that prints a message. The third expiration causes a
1722 When userspace has /dev/watchdog open, no poking is done
1723 from the first interrupt, it is then only poked when the
1727 tristate "Broadcom BCM63xx hardware watchdog"
1730 Watchdog driver for the built in watchdog hardware in Broadcom
1733 To compile this driver as a loadable module, choose M here.
1734 The module will be called bcm63xx_wdt.
1737 tristate "Broadcom BCM2835 hardware watchdog"
1738 depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1739 select WATCHDOG_CORE
1741 Watchdog driver for the built in watchdog hardware in Broadcom
1744 To compile this driver as a loadable module, choose M here.
1745 The module will be called bcm2835_wdt.
1748 tristate "BCM Kona Watchdog"
1749 depends on ARCH_BCM_MOBILE || COMPILE_TEST
1750 select WATCHDOG_CORE
1752 Support for the watchdog timer on the following Broadcom BCM281xx
1753 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1756 Say 'Y' or 'M' here to enable the driver. The module will be called
1759 config BCM_KONA_WDT_DEBUG
1760 bool "DEBUGFS support for BCM Kona Watchdog"
1761 depends on BCM_KONA_WDT
1763 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1764 access to the driver's internal data structures as well as watchdog
1765 timer hardware registres.
1767 If in doubt, say 'N'.
1770 tristate "BCM7038 Watchdog"
1771 select WATCHDOG_CORE
1772 depends on HAS_IOMEM
1773 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1775 Watchdog driver for the built-in hardware in Broadcom 7038 and
1776 later SoCs used in set-top boxes. BCM7038 was made public
1777 during the 2004 CES, and since then, many Broadcom chips use this
1778 watchdog block, including some cable modem chips.
1781 tristate "Imagination Technologies PDC Watchdog Timer"
1782 depends on HAS_IOMEM
1783 depends on MIPS || COMPILE_TEST
1784 select WATCHDOG_CORE
1786 Driver for Imagination Technologies PowerDown Controller
1789 To compile this driver as a loadable module, choose M here.
1790 The module will be called imgpdc_wdt.
1793 tristate "Lantiq SoC watchdog"
1795 select WATCHDOG_CORE
1797 Hardware driver for the Lantiq SoC Watchdog Timer.
1799 config LOONGSON1_WDT
1800 tristate "Loongson1 SoC hardware watchdog"
1801 depends on MACH_LOONGSON32
1802 select WATCHDOG_CORE
1804 Hardware driver for the Loongson1 SoC Watchdog Timer.
1807 tristate "Ralink SoC watchdog"
1808 select WATCHDOG_CORE
1811 Hardware driver for the Ralink SoC Watchdog Timer.
1814 tristate "Mediatek SoC watchdog"
1815 select WATCHDOG_CORE
1816 depends on SOC_MT7620 || SOC_MT7621
1818 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1821 tristate "Microchip PIC32 hardware watchdog"
1822 select WATCHDOG_CORE
1823 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1825 Watchdog driver for the built in watchdog hardware in a PIC32.
1827 Configuration bits must be set appropriately for the watchdog to be
1828 controlled by this driver.
1830 To compile this driver as a loadable module, choose M here.
1831 The module will be called pic32-wdt.
1834 tristate "Microchip PIC32 Deadman Timer"
1835 select WATCHDOG_CORE
1836 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1838 Watchdog driver for PIC32 instruction fetch counting timer. This specific
1839 timer is typically be used in misson critical and safety critical
1840 applications, where any single failure of the software functionality
1841 and sequencing must be detected.
1843 To compile this driver as a loadable module, choose M here.
1844 The module will be called pic32-dmt.
1846 # PARISC Architecture
1848 # POWERPC Architecture
1851 tristate "GE Watchdog Timer"
1854 Watchdog timer found in a number of GE single board computers.
1857 bool "MPC52xx Watchdog Timer"
1858 depends on PPC_MPC52xx || COMPILE_TEST
1860 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1863 tristate "MPC8xxx Platform Watchdog Timer"
1864 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1865 select WATCHDOG_CORE
1867 This driver is for a SoC level watchdog that exists on some
1868 Freescale PowerPC processors. So far this driver supports:
1873 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1876 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1877 depends on MV64X60 || COMPILE_TEST
1880 tristate "PIKA FPGA Watchdog"
1881 depends on WARP || (PPC64 && COMPILE_TEST)
1884 This enables the watchdog in the PIKA FPGA. Currently used on
1888 tristate "PowerPC Book-E Watchdog Timer"
1889 depends on BOOKE || 4xx
1890 select WATCHDOG_CORE
1892 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1893 MPC85xx SOCs and the IBM PowerPC 440.
1895 Please see Documentation/watchdog/watchdog-api.rst for
1898 config BOOKE_WDT_DEFAULT_TIMEOUT
1899 int "PowerPC Book-E Watchdog Timer Default Timeout"
1900 depends on BOOKE_WDT
1901 default 38 if PPC_FSL_BOOK3E
1902 range 0 63 if PPC_FSL_BOOK3E
1903 default 3 if !PPC_FSL_BOOK3E
1904 range 0 3 if !PPC_FSL_BOOK3E
1906 Select the default watchdog timer period to be used by the PowerPC
1907 Book-E watchdog driver. A watchdog "event" occurs when the bit
1908 position represented by this number transitions from zero to one.
1910 For Freescale Book-E processors, this is a number between 0 and 63.
1911 For other Book-E processors, this is a number between 0 and 3.
1913 The value can be overridden by the wdt_period command-line parameter.
1916 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1917 select WATCHDOG_CORE
1918 depends on GPIOLIB || COMPILE_TEST
1920 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1922 The driver can also be built as a module. If so, the module will be
1925 If unsure select N here.
1927 # PPC64 Architecture
1929 config WATCHDOG_RTAS
1930 tristate "RTAS watchdog"
1933 This driver adds watchdog support for the RTAS watchdog.
1935 To compile this driver as a module, choose M here. The module
1936 will be called wdrtas.
1940 config DIAG288_WATCHDOG
1941 tristate "System z diag288 Watchdog"
1943 select WATCHDOG_CORE
1945 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1946 provide a virtual watchdog timer to their guest that cause a
1947 user define Control Program command to be executed after a
1949 LPAR provides a very similar interface. This driver handles
1952 To compile this driver as a module, choose M here. The module
1953 will be called diag288_wdt.
1955 # SUPERH (sh + sh64) Architecture
1958 tristate "SuperH Watchdog"
1959 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1960 select WATCHDOG_CORE
1962 This driver adds watchdog support for the integrated watchdog in the
1963 SuperH processors. If you have one of these processors and wish
1964 to have watchdog support enabled, say Y, otherwise say N.
1966 As a side note, saying Y here will automatically boost HZ to 1000
1967 so that the timer has a chance to clear the overflow counter. On
1968 slower systems (such as the SH-2 and SH-3) this will likely yield
1969 some performance issues. As such, the WDT should be avoided here
1970 unless it is absolutely necessary.
1972 To compile this driver as a module, choose M here: the
1973 module will be called shwdt.
1975 # SPARC Architecture
1977 # SPARC64 Architecture
1979 config WATCHDOG_CP1XXX
1980 tristate "CP1XXX Hardware Watchdog support"
1981 depends on SPARC64 && PCI
1983 This is the driver for the hardware watchdog timers present on
1984 Sun Microsystems CompactPCI models CP1400 and CP1500.
1986 To compile this driver as a module, choose M here: the
1987 module will be called cpwatchdog.
1989 If you do not have a CompactPCI model CP1400 or CP1500, or
1990 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1991 you should say N to this option.
1994 tristate "RIO Hardware Watchdog support"
1995 depends on SPARC64 && PCI
1997 Say Y here to support the hardware watchdog capability on Sun RIO
1998 machines. The watchdog timeout period is normally one minute but
1999 can be changed with a boot-time parameter.
2001 config WATCHDOG_SUN4V
2002 tristate "Sun4v Watchdog support"
2003 select WATCHDOG_CORE
2006 Say Y here to support the hypervisor watchdog capability embedded
2007 in the SPARC sun4v architecture.
2009 To compile this driver as a module, choose M here. The module will
2010 be called sun4v_wdt.
2012 # XTENSA Architecture
2017 tristate "Xen Watchdog support"
2019 select WATCHDOG_CORE
2021 Say Y here to support the hypervisor watchdog capability provided
2022 by Xen 4.0 and newer. The watchdog timeout period is normally one
2023 minute but can be changed with a boot-time parameter.
2026 tristate "UML watchdog"
2027 depends on UML || COMPILE_TEST
2030 # ISA-based Watchdog Cards
2033 comment "ISA-based Watchdog Cards"
2037 tristate "Berkshire Products ISA-PC Watchdog"
2040 This is the driver for the Berkshire Products ISA-PC Watchdog card.
2041 This card simply watches your kernel to make sure it doesn't freeze,
2042 and if it does, it reboots your computer after a certain amount of
2043 time. This driver is like the WDT501 driver but for different
2044 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. The PC
2045 watchdog cards can be ordered from <http://www.berkprod.com/>.
2047 To compile this driver as a module, choose M here: the
2048 module will be called pcwd.
2050 Most people will say N.
2053 tristate "Mixcom Watchdog"
2056 This is a driver for the Mixcom hardware watchdog cards. This
2057 watchdog simply watches your kernel to make sure it doesn't freeze,
2058 and if it does, it reboots your computer after a certain amount of
2061 To compile this driver as a module, choose M here: the
2062 module will be called mixcomwd.
2064 Most people will say N.
2067 tristate "WDT Watchdog timer"
2070 If you have a WDT500P or WDT501P watchdog board, say Y here,
2071 otherwise N. It is not possible to probe for this board, which means
2072 that you have to inform the kernel about the IO port and IRQ that
2073 is needed (you can do this via the io and irq parameters)
2075 To compile this driver as a module, choose M here: the
2076 module will be called wdt.
2079 # PCI-based Watchdog Cards
2082 comment "PCI-based Watchdog Cards"
2085 config PCIPCWATCHDOG
2086 tristate "Berkshire Products PCI-PC Watchdog"
2089 This is the driver for the Berkshire Products PCI-PC Watchdog card.
2090 This card simply watches your kernel to make sure it doesn't freeze,
2091 and if it does, it reboots your computer after a certain amount of
2092 time. The card can also monitor the internal temperature of the PC.
2093 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2095 To compile this driver as a module, choose M here: the
2096 module will be called pcwd_pci.
2098 Most people will say N.
2101 tristate "PCI-WDT500/501 Watchdog timer"
2104 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2106 If you have a PCI-WDT501 watchdog board then you can enable the
2107 temperature sensor by setting the type parameter to 501.
2109 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2110 can do this via the tachometer parameter. Only do this if you have a
2111 fan tachometer actually set up.
2113 To compile this driver as a module, choose M here: the
2114 module will be called wdt_pci.
2117 # USB-based Watchdog Cards
2120 comment "USB-based Watchdog Cards"
2123 config USBPCWATCHDOG
2124 tristate "Berkshire Products USB-PC Watchdog"
2127 This is the driver for the Berkshire Products USB-PC Watchdog card.
2128 This card simply watches your kernel to make sure it doesn't freeze,
2129 and if it does, it reboots your computer after a certain amount of
2130 time. The card can also monitor the internal temperature of the PC.
2131 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2133 To compile this driver as a module, choose M here: the
2134 module will be called pcwd_usb.
2136 Most people will say N.