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
691 This is the driver for the Max77620 watchdog timer.
692 Say 'Y' here to enable the watchdog timer support for
693 MAX77620 chips. To compile this driver as a module,
694 choose M here: the module will be called max77620_wdt.
697 tristate "IMX2+ Watchdog"
698 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
702 This is the driver for the hardware watchdog
703 on the Freescale IMX2 and later processors.
704 If you have one of these processors and wish to have
705 watchdog support enabled, say Y, otherwise say N.
707 To compile this driver as a module, choose M here: the
708 module will be called imx2_wdt.
711 tristate "IMX SC Watchdog"
712 depends on HAVE_ARM_SMCCC
716 This is the driver for the system controller watchdog
717 on the NXP i.MX SoCs with system controller inside, the
718 watchdog driver will call ARM SMC API and trap into
719 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
720 will request system controller to execute the operations.
721 If you have one of these processors and wish to have
722 watchdog support enabled, say Y, otherwise say N.
724 To compile this driver as a module, choose M here: the
725 module will be called imx_sc_wdt.
728 tristate "IMX7ULP Watchdog"
729 depends on ARCH_MXC || COMPILE_TEST
732 This is the driver for the hardware watchdog on the Freescale
733 IMX7ULP and later processors. If you have one of these
734 processors and wish to have watchdog support enabled,
735 say Y, otherwise say N.
737 To compile this driver as a module, choose M here: the
738 module will be called imx7ulp_wdt.
740 config UX500_WATCHDOG
741 tristate "ST-Ericsson Ux500 watchdog"
742 depends on MFD_DB8500_PRCMU
746 Say Y here to include Watchdog timer support for the watchdog
747 existing in the prcmu of ST-Ericsson Ux500 series platforms.
749 To compile this driver as a module, choose M here: the
750 module will be called ux500_wdt.
753 tristate "Retu watchdog"
757 Retu watchdog driver for Nokia Internet Tablets (770, N800,
758 N810). At least on N800 the watchdog cannot be disabled, so
759 this driver is essential and you should enable it.
761 To compile this driver as a module, choose M here: the
762 module will be called retu_wdt.
765 tristate "MOXART watchdog"
766 depends on ARCH_MOXART || COMPILE_TEST
768 Say Y here to include Watchdog timer support for the watchdog
769 existing on the MOXA ART SoC series platforms.
771 To compile this driver as a module, choose M here: the
772 module will be called moxart_wdt.
774 config SIRFSOC_WATCHDOG
775 tristate "SiRFSOC watchdog"
776 depends on ARCH_SIRF || COMPILE_TEST
780 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
781 the watchdog triggers the system will be reset.
783 config ST_LPC_WATCHDOG
784 tristate "STMicroelectronics LPC Watchdog"
785 depends on ARCH_STI || COMPILE_TEST
789 Say Y here to include STMicroelectronics Low Power Controller
790 (LPC) based Watchdog timer support.
792 To compile this driver as a module, choose M here: the
793 module will be called st_lpc_wdt.
795 config TEGRA_WATCHDOG
796 tristate "Tegra watchdog"
797 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
800 Say Y here to include support for the watchdog timer
801 embedded in NVIDIA Tegra SoCs.
803 To compile this driver as a module, choose M here: the
804 module will be called tegra_wdt.
807 tristate "QCOM watchdog"
809 depends on ARCH_QCOM || COMPILE_TEST
812 Say Y here to include Watchdog timer support for the watchdog found
813 on QCOM chipsets. Currently supported targets are the MSM8960,
814 APQ8064, and IPQ8064.
816 To compile this driver as a module, choose M here: the
817 module will be called qcom_wdt.
819 config MESON_GXBB_WATCHDOG
820 tristate "Amlogic Meson GXBB SoCs watchdog support"
821 depends on ARCH_MESON || COMPILE_TEST
824 Say Y here to include support for the watchdog timer
825 in Amlogic Meson GXBB SoCs.
826 To compile this driver as a module, choose M here: the
827 module will be called meson_gxbb_wdt.
829 config MESON_WATCHDOG
830 tristate "Amlogic Meson 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 SoCs.
836 To compile this driver as a module, choose M here: the
837 module will be called meson_wdt.
839 config MEDIATEK_WATCHDOG
840 tristate "Mediatek SoCs watchdog support"
841 depends on ARCH_MEDIATEK || COMPILE_TEST
844 Say Y here to include support for the watchdog timer
846 To compile this driver as a module, choose M here: the
847 module will be called mtk_wdt.
849 config DIGICOLOR_WATCHDOG
850 tristate "Conexant Digicolor SoCs watchdog support"
851 depends on ARCH_DIGICOLOR || COMPILE_TEST
854 Say Y here to include support for the watchdog timer
855 in Conexant Digicolor SoCs.
856 To compile this driver as a module, choose M here: the
857 module will be called digicolor_wdt.
859 config LPC18XX_WATCHDOG
860 tristate "LPC18xx/43xx Watchdog"
861 depends on ARCH_LPC18XX || COMPILE_TEST
865 Say Y here if to include support for the watchdog timer
866 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
868 To compile this driver as a module, choose M here: the
869 module will be called lpc18xx_wdt.
871 config ATLAS7_WATCHDOG
872 tristate "CSRatlas7 watchdog"
873 depends on ARCH_ATLAS7 || COMPILE_TEST
875 Say Y here to include Watchdog timer support for the watchdog
876 existing on the CSRatlas7 series platforms.
878 To compile this driver as a module, choose M here: the
879 module will be called atlas7_wdt.
882 tristate "Renesas WDT Watchdog"
883 depends on ARCH_RENESAS || COMPILE_TEST
886 This driver adds watchdog support for the integrated watchdogs in the
887 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
889 config RENESAS_RZAWDT
890 tristate "Renesas RZ/A WDT Watchdog"
891 depends on ARCH_RENESAS || COMPILE_TEST
894 This driver adds watchdog support for the integrated watchdogs in the
895 Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
897 config ASPEED_WATCHDOG
898 tristate "Aspeed BMC watchdog support"
899 depends on ARCH_ASPEED || COMPILE_TEST
902 Say Y here to include support for the watchdog timer
905 This driver is required to reboot the SoC.
907 To compile this driver as a module, choose M here: the
908 module will be called aspeed_wdt.
910 config ZX2967_WATCHDOG
911 tristate "ZTE zx2967 SoCs watchdog support"
915 Say Y here to include support for the watchdog timer
917 To compile this driver as a module, choose M here: the
918 module will be called zx2967_wdt.
920 config STM32_WATCHDOG
921 tristate "STM32 Independent WatchDoG (IWDG) support"
922 depends on ARCH_STM32
926 Say Y here to include support for the watchdog timer
929 To compile this driver as a module, choose M here: the
930 module will be called stm32_iwdg.
932 config STPMIC1_WATCHDOG
933 tristate "STPMIC1 PMIC watchdog support"
934 depends on MFD_STPMIC1
937 Say Y here to include watchdog support embedded into STPMIC1 PMIC.
938 If the watchdog timer expires, stpmic1 will shut down all its power
941 To compile this driver as a module, choose M here: the
942 module will be called spmic1_wdt.
944 config UNIPHIER_WATCHDOG
945 tristate "UniPhier watchdog support"
946 depends on ARCH_UNIPHIER || COMPILE_TEST
947 depends on OF && MFD_SYSCON
950 Say Y here to include support watchdog timer embedded
951 into the UniPhier system.
953 To compile this driver as a module, choose M here: the
954 module will be called uniphier_wdt.
956 config RTD119X_WATCHDOG
957 bool "Realtek RTD119x/RTD129x watchdog support"
958 depends on ARCH_REALTEK || COMPILE_TEST
963 Say Y here to include support for the watchdog timer in
964 Realtek RTD1295 SoCs.
967 tristate "Spreadtrum watchdog support"
968 depends on ARCH_SPRD || COMPILE_TEST
971 Say Y here to include watchdog timer supported
972 by Spreadtrum system.
974 config PM8916_WATCHDOG
975 tristate "QCOM PM8916 pmic watchdog"
976 depends on OF && MFD_SPMI_PMIC
979 Say Y here to include support watchdog timer embedded into the
982 # X86 (i386 + ia64 + x86_64) Architecture
985 tristate "Acquire SBC Watchdog Timer"
988 This is the driver for the hardware watchdog on Single Board
989 Computers produced by Acquire Inc (and others). This watchdog
990 simply watches your kernel to make sure it doesn't freeze, and if
991 it does, it reboots your computer after a certain amount of time.
993 To compile this driver as a module, choose M here: the
994 module will be called acquirewdt.
996 Most people will say N.
999 tristate "Advantech SBC Watchdog Timer"
1002 If you are configuring a Linux kernel for the Advantech single-board
1003 computer, say `Y' here to support its built-in watchdog timer
1004 feature. More information can be found at
1005 <http://www.advantech.com.tw/products/>
1008 tristate "ALi M1535 PMU Watchdog Timer"
1009 depends on X86 && PCI
1011 This is the driver for the hardware watchdog on the ALi M1535 PMU.
1013 To compile this driver as a module, choose M here: the
1014 module will be called alim1535_wdt.
1016 Most people will say N.
1019 tristate "ALi M7101 PMU Computer Watchdog"
1022 This is the driver for the hardware watchdog on the ALi M7101 PMU
1023 as used in the x86 Cobalt servers and also found in some
1024 SPARC Netra servers too.
1026 To compile this driver as a module, choose M here: the
1027 module will be called alim7101_wdt.
1029 Most people will say N.
1032 tristate "WinSystems EBC-C384 Watchdog Timer"
1035 select WATCHDOG_CORE
1037 Enables watchdog timer support for the watchdog timer on the
1038 WinSystems EBC-C384 motherboard. The timeout may be configured via
1039 the timeout module parameter.
1042 tristate "Fintek F718xx, F818xx Super I/O Watchdog"
1045 This is the driver for the hardware watchdog on the Fintek F71808E,
1046 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and
1047 F81866 Super I/O controllers.
1049 You can compile this driver directly into the kernel, or use
1050 it as a module. The module will be called f71808e_wdt.
1053 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
1054 depends on X86 && PCI
1055 select WATCHDOG_CORE
1057 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
1058 (Total Cost of Ownership) timer is a watchdog timer that will reboot
1059 the machine after its expiration. The expiration time can be
1060 configured with the "heartbeat" parameter.
1062 To compile this driver as a module, choose M here: the
1063 module will be called sp5100_tco.
1066 tristate "AMD Geode CS5535/CS5536 Watchdog"
1067 depends on CS5535_MFGPT
1069 This driver enables a watchdog capability built into the
1070 CS5535/CS5536 companion chips for the AMD Geode GX and LX
1071 processors. This watchdog watches your kernel to make sure
1072 it doesn't freeze, and if it does, it reboots your computer after
1073 a certain amount of time.
1075 You can compile this driver directly into the kernel, or use
1076 it as a module. The module will be called geodewdt.
1079 tristate "AMD Elan SC520 processor Watchdog"
1080 depends on MELAN || COMPILE_TEST
1082 This is the driver for the hardware watchdog built in to the
1083 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
1084 This watchdog simply watches your kernel to make sure it doesn't
1085 freeze, and if it does, it reboots your computer after a certain
1088 You can compile this driver directly into the kernel, or use
1089 it as a module. The module will be called sc520_wdt.
1091 config SBC_FITPC2_WATCHDOG
1092 tristate "Compulab SBC-FITPC2 watchdog"
1095 This is the driver for the built-in watchdog timer on the fit-PC2,
1096 fit-PC2i, CM-iAM single-board computers made by Compulab.
1098 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
1099 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
1101 Entering BIOS setup temporary disables watchdog operation regardless to current state,
1102 so system will not be restarted while user in BIOS setup.
1104 Once watchdog was enabled the system will be restarted every
1105 "Watchdog Timer Value" period, so to prevent it user can restart or
1106 disable the watchdog.
1108 To compile this driver as a module, choose M here: the
1109 module will be called sbc_fitpc2_wdt.
1111 Most people will say N.
1114 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1117 Enable support for the watchdog timer on the Eurotech CPU-1220 and
1118 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
1119 information are at <http://www.eurotech.it/>.
1122 tristate "IB700 SBC Watchdog Timer"
1125 This is the driver for the hardware watchdog on the IB700 Single
1126 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
1127 simply watches your kernel to make sure it doesn't freeze, and if
1128 it does, it reboots your computer after a certain amount of time.
1130 This driver is like the WDT501 driver but for slightly different hardware.
1132 To compile this driver as a module, choose M here: the
1133 module will be called ib700wdt.
1135 Most people will say N.
1138 tristate "IBM Automatic Server Restart"
1141 This is the driver for the IBM Automatic Server Restart watchdog
1142 timer built-in into some eServer xSeries machines.
1144 To compile this driver as a module, choose M here: the
1145 module will be called ibmasr.
1148 tristate "ICP Single Board Computer Watchdog Timer"
1151 This is a driver for the hardware watchdog on the ICP Single
1152 Board Computer. This driver is working on (at least) the following
1153 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1155 To compile this driver as a module, choose M here: the
1156 module will be called wafer5823wdt.
1159 tristate "Intel 6300ESB Timer/Watchdog"
1161 select WATCHDOG_CORE
1163 Hardware driver for the watchdog timer built into the Intel
1164 6300ESB controller hub.
1166 To compile this driver as a module, choose M here: the
1167 module will be called i6300esb.
1170 tristate "Intel Atom E6xx Watchdog"
1171 depends on X86 && PCI
1172 select WATCHDOG_CORE
1176 Hardware driver for the watchdog timer built into the Intel
1177 Atom E6XX (TunnelCreek) processor.
1179 To compile this driver as a module, choose M here: the
1180 module will be called ie6xx_wdt.
1182 config INTEL_SCU_WATCHDOG
1183 bool "Intel SCU Watchdog for Mobile Platforms"
1184 depends on X86_INTEL_MID
1186 Hardware driver for the watchdog time built into the Intel SCU
1187 for Intel Mobile Platforms.
1189 To compile this driver as a module, choose M here.
1191 config INTEL_MID_WATCHDOG
1192 tristate "Intel MID Watchdog Timer"
1193 depends on X86_INTEL_MID
1194 select WATCHDOG_CORE
1196 Watchdog timer driver built into the Intel SCU for Intel MID
1199 This driver currently supports only the watchdog evolution
1200 implementation in SCU, available for Merrifield generation.
1202 To compile this driver as a module, choose M here.
1205 tristate "Intel TCO Timer/Watchdog"
1206 depends on (X86 || IA64) && PCI
1207 select WATCHDOG_CORE
1208 depends on I2C || I2C=n
1209 select LPC_ICH if !EXPERT
1210 select I2C_I801 if !EXPERT && I2C
1212 Hardware driver for the intel TCO timer based watchdog devices.
1213 These drivers are included in the Intel 82801 I/O Controller
1214 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1217 The TCO (Total Cost of Ownership) timer is a watchdog timer
1218 that will reboot the machine after its second expiration. The
1219 expiration time can be configured with the "heartbeat" parameter.
1221 On some motherboards the driver may fail to reset the chipset's
1222 NO_REBOOT flag which prevents the watchdog from rebooting the
1223 machine. If this is the case you will get a kernel message like
1224 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1226 To compile this driver as a module, choose M here: the
1227 module will be called iTCO_wdt.
1229 config ITCO_VENDOR_SUPPORT
1230 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1233 Add vendor specific support to the intel TCO timer based watchdog
1234 devices. At this moment we only have additional support for some
1235 SuperMicro Inc. motherboards.
1238 tristate "IT8712F (Smart Guardian) Watchdog Timer"
1241 This is the driver for the built-in watchdog timer on the IT8712F
1242 Super I/0 chipset used on many motherboards.
1244 If the driver does not work, then make sure that the game port in
1245 the BIOS is enabled.
1247 To compile this driver as a module, choose M here: the
1248 module will be called it8712f_wdt.
1251 tristate "IT87 Watchdog Timer"
1253 select WATCHDOG_CORE
1255 This is the driver for the hardware watchdog on the ITE IT8607,
1256 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1257 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1258 IT8783 Super I/O chips.
1260 This watchdog simply watches your kernel to make sure it doesn't
1261 freeze, and if it does, it reboots your computer after a certain
1264 To compile this driver as a module, choose M here: the module will
1268 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1269 select WATCHDOG_CORE
1270 depends on X86 && PCI
1272 A software monitoring watchdog and NMI handling driver. This driver
1273 will detect lockups and provide a stack trace. This is a driver that
1274 will only load on an HP ProLiant system with a minimum of iLO2 support.
1275 To compile this driver as a module, choose M here: the module will be
1278 config HPWDT_NMI_DECODING
1279 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1280 depends on HP_WATCHDOG
1283 Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1284 "Generate NMI to System" virtual button. When an NMI is claimed
1285 by the driver, panic is called.
1288 tristate "Kontron COM Watchdog Timer"
1289 depends on MFD_KEMPLD
1290 select WATCHDOG_CORE
1292 Support for the PLD watchdog on some Kontron ETX and COMexpress
1293 (ETXexpress) modules
1295 This driver can also be built as a module. If so, the module will be
1299 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1302 This is a driver for National Semiconductor PC87307/PC97307 hardware
1303 watchdog cards as found on the SC1200. This watchdog is mainly used
1304 for power management purposes and can be used to power down the device
1305 during inactivity periods (includes interrupt activity monitoring).
1307 To compile this driver as a module, choose M here: the
1308 module will be called sc1200wdt.
1310 Most people will say N.
1313 tristate "National Semiconductor SCx200 Watchdog"
1314 depends on SCx200 && PCI
1316 Enable the built-in watchdog timer support on the National
1317 Semiconductor SCx200 processors.
1319 If compiled as a module, it will be called scx200_wdt.
1322 tristate "NS PC87413 watchdog"
1325 This is the driver for the hardware watchdog on the PC87413 chipset
1326 This watchdog simply watches your kernel to make sure it doesn't
1327 freeze, and if it does, it reboots your computer after a certain
1330 To compile this driver as a module, choose M here: the
1331 module will be called pc87413_wdt.
1333 Most people will say N.
1336 tristate "nVidia TCO Timer/Watchdog"
1337 depends on X86 && PCI
1339 Hardware driver for the TCO timer built into the nVidia Hub family
1340 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
1341 watchdog timer that will reboot the machine after its second
1342 expiration. The expiration time can be configured with the
1343 "heartbeat" parameter.
1345 On some motherboards the driver may fail to reset the chipset's
1346 NO_REBOOT flag which prevents the watchdog from rebooting the
1347 machine. If this is the case you will get a kernel message like
1348 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1350 To compile this driver as a module, choose M here: the
1351 module will be called nv_tco.
1354 tristate "RDC R-321x SoC watchdog"
1355 depends on X86_RDC321X || COMPILE_TEST
1358 This is the driver for the built in hardware watchdog
1359 in the RDC R-321x SoC.
1361 To compile this driver as a module, choose M here: the
1362 module will be called rdc321x_wdt.
1365 tristate "SBC-60XX Watchdog Timer"
1368 This driver can be used with the watchdog timer found on some
1369 single board computers, namely the 6010 PII based computer.
1370 It may well work with other cards. It reads port 0x443 to enable
1371 and re-set the watchdog timer, and reads port 0x45 to disable
1372 the watchdog. If you have a card that behave in similar ways,
1373 you can probably make this driver work with your card as well.
1375 You can compile this driver directly into the kernel, or use
1376 it as a module. The module will be called sbc60xxwdt.
1379 tristate "SBC8360 Watchdog Timer"
1383 This is the driver for the hardware watchdog on the SBC8360 Single
1384 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1386 To compile this driver as a module, choose M here: the
1387 module will be called sbc8360.
1389 Most people will say N.
1392 tristate "SBC Nano 7240 Watchdog Timer"
1393 depends on X86_32 && !UML
1395 This is the driver for the hardware watchdog found on the IEI
1396 single board computers EPIC Nano 7240 (and likely others). This
1397 watchdog simply watches your kernel to make sure it doesn't freeze,
1398 and if it does, it reboots your computer after a certain amount of
1401 To compile this driver as a module, choose M here: the
1402 module will be called sbc7240_wdt.
1405 tristate "SMA CPU5 Watchdog"
1409 To compile this driver as a module, choose M here: the
1410 module will be called cpu5wdt.
1412 config SMSC_SCH311X_WDT
1413 tristate "SMSC SCH311X Watchdog Timer"
1416 This is the driver for the hardware watchdog timer on the
1417 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1418 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1421 To compile this driver as a module, choose M here: the
1422 module will be called sch311x_wdt.
1424 config SMSC37B787_WDT
1425 tristate "Winbond SMsC37B787 Watchdog Timer"
1428 This is the driver for the hardware watchdog component on the
1429 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1430 from Vision Systems and maybe others.
1432 This watchdog simply watches your kernel to make sure it doesn't
1433 freeze, and if it does, it reboots your computer after a certain
1436 Usually a userspace daemon will notify the kernel WDT driver that
1437 userspace is still alive, at regular intervals.
1439 To compile this driver as a module, choose M here: the
1440 module will be called smsc37b787_wdt.
1442 Most people will say N.
1445 tristate "TQ-Systems TQMX86 Watchdog Timer"
1448 This is the driver for the hardware watchdog timer in the TQMX86 IO
1449 controller found on some of their ComExpress Modules.
1451 To compile this driver as a module, choose M here; the module
1452 will be called tqmx86_wdt.
1454 Most people will say N.
1457 tristate "VIA Watchdog Timer"
1458 depends on X86 && PCI
1459 select WATCHDOG_CORE
1461 This is the driver for the hardware watchdog timer on VIA
1462 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1464 To compile this driver as a module, choose M here; the module
1465 will be called via_wdt.
1467 Most people will say N.
1470 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1472 select WATCHDOG_CORE
1474 This is the driver for the hardware watchdog on the following
1476 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1490 This watchdog simply watches your kernel to make sure it doesn't
1491 freeze, and if it does, it reboots your computer after a certain
1494 To compile this driver as a module, choose M here: the
1495 module will be called w83627hf_wdt.
1497 Most people will say N.
1500 tristate "W83877F (EMACS) Watchdog Timer"
1503 This is the driver for the hardware watchdog on the W83877F chipset
1504 as used in EMACS PC-104 motherboards (and likely others). This
1505 watchdog simply watches your kernel to make sure it doesn't freeze,
1506 and if it does, it reboots your computer after a certain amount of
1509 To compile this driver as a module, choose M here: the
1510 module will be called w83877f_wdt.
1512 Most people will say N.
1515 tristate "W83977F (PCM-5335) Watchdog Timer"
1518 This is the driver for the hardware watchdog on the W83977F I/O chip
1519 as used in AAEON's PCM-5335 SBC (and likely others). This
1520 watchdog simply watches your kernel to make sure it doesn't freeze,
1521 and if it does, it reboots your computer after a certain amount of
1524 To compile this driver as a module, choose M here: the
1525 module will be called w83977f_wdt.
1528 tristate "ZF MachZ Watchdog"
1531 If you are using a ZF Micro MachZ processor, say Y here, otherwise
1532 N. This is the driver for the watchdog timer built-in on that
1533 processor using ZF-Logic interface. This watchdog simply watches
1534 your kernel to make sure it doesn't freeze, and if it does, it
1535 reboots your computer after a certain amount of time.
1537 To compile this driver as a module, choose M here: the
1538 module will be called machzwd.
1540 config SBC_EPX_C3_WATCHDOG
1541 tristate "Winsystems SBC EPX-C3 watchdog"
1544 This is the driver for the built-in watchdog timer on the EPX-C3
1545 Single-board computer made by Winsystems, Inc.
1547 *Note*: This hardware watchdog is not probeable and thus there
1548 is no way to know if writing to its IO address will corrupt
1549 your system or have any real effect. The only way to be sure
1550 that this driver does what you want is to make sure you
1551 are running it on an EPX-C3 from Winsystems with the watchdog
1552 timer at IO address 0x1ee and 0x1ef. It will write to both those
1553 IO ports. Basically, the assumption is made that if you compile
1554 this driver into your kernel and/or load it as a module, that you
1555 know what you are doing and that you are in fact running on an
1558 To compile this driver as a module, choose M here: the
1559 module will be called sbc_epx_c3.
1561 config INTEL_MEI_WDT
1562 tristate "Intel MEI iAMT Watchdog"
1563 depends on INTEL_MEI && X86
1564 select WATCHDOG_CORE
1566 A device driver for the Intel MEI iAMT watchdog.
1568 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1569 Whenever the OS hangs or crashes, iAMT will send an event
1570 to any subscriber to this event. The watchdog doesn't reset the
1573 To compile this driver as a module, choose M here:
1574 the module will be called mei_wdt.
1577 tristate "NI 903x/913x Watchdog"
1578 depends on X86 && ACPI
1579 select WATCHDOG_CORE
1581 This is the driver for the watchdog timer on the National Instruments
1582 903x/913x real-time controllers.
1584 To compile this driver as a module, choose M here: the module will be
1588 tristate "NIC7018 Watchdog"
1589 depends on X86 && ACPI
1590 select WATCHDOG_CORE
1592 Support for National Instruments NIC7018 Watchdog.
1594 To compile this driver as a module, choose M here: the module will be
1599 config M54xx_WATCHDOG
1600 tristate "MCF54xx watchdog support"
1603 To compile this driver as a module, choose M here: the
1604 module will be called m54xx_wdt.
1606 # MicroBlaze Architecture
1611 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1612 depends on ATH79 || (ARM && COMPILE_TEST)
1614 Hardware driver for the built-in watchdog timer on the Atheros
1615 AR71XX/AR724X/AR913X SoCs.
1618 tristate "Broadcom BCM47xx Watchdog Timer"
1619 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1620 select WATCHDOG_CORE
1622 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1625 tristate "IDT RC32434 SoC Watchdog Timer"
1626 depends on MIKROTIK_RB532
1628 Hardware driver for the IDT RC32434 SoC built-in
1631 To compile this driver as a module, choose M here: the
1632 module will be called rc32434_wdt.
1635 tristate "Indy/I2 Hardware Watchdog"
1636 depends on SGI_HAS_INDYDOG
1638 Hardware driver for the Indy's/I2's watchdog. This is a
1639 watchdog timer that will reboot the machine after a 60 second
1640 timer expired and no process has written to /dev/watchdog during
1644 tristate "Ingenic jz4740 SoC hardware watchdog"
1646 depends on COMMON_CLK
1647 select WATCHDOG_CORE
1650 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1653 tristate "MTX-1 Hardware Watchdog"
1654 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1656 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1657 will reboot the machine after a 100 seconds timer expired.
1660 tristate "PNX833x Hardware Watchdog"
1661 depends on SOC_PNX8335
1664 Hardware driver for the PNX833x's watchdog. This is a
1665 watchdog timer that will reboot the machine after a programmable
1666 timer has expired and no process has written to /dev/watchdog during
1670 tristate "Sibyte SoC hardware watchdog"
1671 depends on CPU_SB1 || (MIPS && COMPILE_TEST)
1673 Watchdog driver for the built in watchdog hardware in Sibyte
1674 SoC processors. There are apparently two watchdog timers
1675 on such processors; this driver supports only the first one,
1676 because currently Linux only supports exporting one watchdog
1679 To compile this driver as a loadable module, choose M here.
1680 The module will be called sb_wdog.
1683 tristate "TI AR7 Watchdog Timer"
1684 depends on AR7 || (MIPS && COMPILE_TEST)
1686 Hardware driver for the TI AR7 Watchdog Timer.
1689 tristate "Toshiba TXx9 Watchdog Timer"
1690 depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
1691 select WATCHDOG_CORE
1693 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1696 tristate "Cavium OCTEON SOC family Watchdog Timer"
1697 depends on CAVIUM_OCTEON_SOC
1699 select WATCHDOG_CORE
1700 select EXPORT_UASM if OCTEON_WDT = m
1702 Hardware driver for OCTEON's on chip watchdog timer.
1703 Enables the watchdog for all cores running Linux. It
1704 installs a NMI handler and pokes the watchdog based on an
1705 interrupt. On first expiration of the watchdog, the
1706 interrupt handler pokes it. The second expiration causes an
1707 NMI that prints a message. The third expiration causes a
1710 When userspace has /dev/watchdog open, no poking is done
1711 from the first interrupt, it is then only poked when the
1715 tristate "Broadcom BCM63xx hardware watchdog"
1718 Watchdog driver for the built in watchdog hardware in Broadcom
1721 To compile this driver as a loadable module, choose M here.
1722 The module will be called bcm63xx_wdt.
1725 tristate "Broadcom BCM2835 hardware watchdog"
1726 depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1727 select WATCHDOG_CORE
1729 Watchdog driver for the built in watchdog hardware in Broadcom
1732 To compile this driver as a loadable module, choose M here.
1733 The module will be called bcm2835_wdt.
1736 tristate "BCM Kona Watchdog"
1737 depends on ARCH_BCM_MOBILE || COMPILE_TEST
1738 select WATCHDOG_CORE
1740 Support for the watchdog timer on the following Broadcom BCM281xx
1741 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1744 Say 'Y' or 'M' here to enable the driver. The module will be called
1747 config BCM_KONA_WDT_DEBUG
1748 bool "DEBUGFS support for BCM Kona Watchdog"
1749 depends on BCM_KONA_WDT
1751 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1752 access to the driver's internal data structures as well as watchdog
1753 timer hardware registres.
1755 If in doubt, say 'N'.
1758 tristate "BCM7038 Watchdog"
1759 select WATCHDOG_CORE
1760 depends on HAS_IOMEM
1761 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1763 Watchdog driver for the built-in hardware in Broadcom 7038 and
1764 later SoCs used in set-top boxes. BCM7038 was made public
1765 during the 2004 CES, and since then, many Broadcom chips use this
1766 watchdog block, including some cable modem chips.
1769 tristate "Imagination Technologies PDC Watchdog Timer"
1770 depends on HAS_IOMEM
1771 depends on MIPS || COMPILE_TEST
1772 select WATCHDOG_CORE
1774 Driver for Imagination Technologies PowerDown Controller
1777 To compile this driver as a loadable module, choose M here.
1778 The module will be called imgpdc_wdt.
1781 tristate "Lantiq SoC watchdog"
1783 select WATCHDOG_CORE
1785 Hardware driver for the Lantiq SoC Watchdog Timer.
1787 config LOONGSON1_WDT
1788 tristate "Loongson1 SoC hardware watchdog"
1789 depends on MACH_LOONGSON32
1790 select WATCHDOG_CORE
1792 Hardware driver for the Loongson1 SoC Watchdog Timer.
1795 tristate "Ralink SoC watchdog"
1796 select WATCHDOG_CORE
1799 Hardware driver for the Ralink SoC Watchdog Timer.
1802 tristate "Mediatek SoC watchdog"
1803 select WATCHDOG_CORE
1804 depends on SOC_MT7620 || SOC_MT7621
1806 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1809 tristate "Microchip PIC32 hardware watchdog"
1810 select WATCHDOG_CORE
1811 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1813 Watchdog driver for the built in watchdog hardware in a PIC32.
1815 Configuration bits must be set appropriately for the watchdog to be
1816 controlled by this driver.
1818 To compile this driver as a loadable module, choose M here.
1819 The module will be called pic32-wdt.
1822 tristate "Microchip PIC32 Deadman Timer"
1823 select WATCHDOG_CORE
1824 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1826 Watchdog driver for PIC32 instruction fetch counting timer. This specific
1827 timer is typically be used in misson critical and safety critical
1828 applications, where any single failure of the software functionality
1829 and sequencing must be detected.
1831 To compile this driver as a loadable module, choose M here.
1832 The module will be called pic32-dmt.
1834 # PARISC Architecture
1836 # POWERPC Architecture
1839 tristate "GE Watchdog Timer"
1842 Watchdog timer found in a number of GE single board computers.
1845 bool "MPC52xx Watchdog Timer"
1846 depends on PPC_MPC52xx || COMPILE_TEST
1848 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1851 tristate "MPC8xxx Platform Watchdog Timer"
1852 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1853 select WATCHDOG_CORE
1855 This driver is for a SoC level watchdog that exists on some
1856 Freescale PowerPC processors. So far this driver supports:
1861 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1864 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1865 depends on MV64X60 || COMPILE_TEST
1868 tristate "PIKA FPGA Watchdog"
1869 depends on WARP || (PPC64 && COMPILE_TEST)
1872 This enables the watchdog in the PIKA FPGA. Currently used on
1876 tristate "PowerPC Book-E Watchdog Timer"
1877 depends on BOOKE || 4xx
1878 select WATCHDOG_CORE
1880 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1881 MPC85xx SOCs and the IBM PowerPC 440.
1883 Please see Documentation/watchdog/watchdog-api.rst for
1886 config BOOKE_WDT_DEFAULT_TIMEOUT
1887 int "PowerPC Book-E Watchdog Timer Default Timeout"
1888 depends on BOOKE_WDT
1889 default 38 if PPC_FSL_BOOK3E
1890 range 0 63 if PPC_FSL_BOOK3E
1891 default 3 if !PPC_FSL_BOOK3E
1892 range 0 3 if !PPC_FSL_BOOK3E
1894 Select the default watchdog timer period to be used by the PowerPC
1895 Book-E watchdog driver. A watchdog "event" occurs when the bit
1896 position represented by this number transitions from zero to one.
1898 For Freescale Book-E processors, this is a number between 0 and 63.
1899 For other Book-E processors, this is a number between 0 and 3.
1901 The value can be overridden by the wdt_period command-line parameter.
1904 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1905 select WATCHDOG_CORE
1906 depends on GPIOLIB || COMPILE_TEST
1908 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1910 The driver can also be built as a module. If so, the module will be
1913 If unsure select N here.
1915 # PPC64 Architecture
1917 config WATCHDOG_RTAS
1918 tristate "RTAS watchdog"
1921 This driver adds watchdog support for the RTAS watchdog.
1923 To compile this driver as a module, choose M here. The module
1924 will be called wdrtas.
1928 config DIAG288_WATCHDOG
1929 tristate "System z diag288 Watchdog"
1931 select WATCHDOG_CORE
1933 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1934 provide a virtual watchdog timer to their guest that cause a
1935 user define Control Program command to be executed after a
1937 LPAR provides a very similar interface. This driver handles
1940 To compile this driver as a module, choose M here. The module
1941 will be called diag288_wdt.
1943 # SUPERH (sh + sh64) Architecture
1946 tristate "SuperH Watchdog"
1947 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1948 select WATCHDOG_CORE
1950 This driver adds watchdog support for the integrated watchdog in the
1951 SuperH processors. If you have one of these processors and wish
1952 to have watchdog support enabled, say Y, otherwise say N.
1954 As a side note, saying Y here will automatically boost HZ to 1000
1955 so that the timer has a chance to clear the overflow counter. On
1956 slower systems (such as the SH-2 and SH-3) this will likely yield
1957 some performance issues. As such, the WDT should be avoided here
1958 unless it is absolutely necessary.
1960 To compile this driver as a module, choose M here: the
1961 module will be called shwdt.
1963 # SPARC Architecture
1965 # SPARC64 Architecture
1967 config WATCHDOG_CP1XXX
1968 tristate "CP1XXX Hardware Watchdog support"
1969 depends on SPARC64 && PCI
1971 This is the driver for the hardware watchdog timers present on
1972 Sun Microsystems CompactPCI models CP1400 and CP1500.
1974 To compile this driver as a module, choose M here: the
1975 module will be called cpwatchdog.
1977 If you do not have a CompactPCI model CP1400 or CP1500, or
1978 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1979 you should say N to this option.
1982 tristate "RIO Hardware Watchdog support"
1983 depends on SPARC64 && PCI
1985 Say Y here to support the hardware watchdog capability on Sun RIO
1986 machines. The watchdog timeout period is normally one minute but
1987 can be changed with a boot-time parameter.
1989 config WATCHDOG_SUN4V
1990 tristate "Sun4v Watchdog support"
1991 select WATCHDOG_CORE
1994 Say Y here to support the hypervisor watchdog capability embedded
1995 in the SPARC sun4v architecture.
1997 To compile this driver as a module, choose M here. The module will
1998 be called sun4v_wdt.
2000 # XTENSA Architecture
2005 tristate "Xen Watchdog support"
2007 select WATCHDOG_CORE
2009 Say Y here to support the hypervisor watchdog capability provided
2010 by Xen 4.0 and newer. The watchdog timeout period is normally one
2011 minute but can be changed with a boot-time parameter.
2014 tristate "UML watchdog"
2015 depends on UML || COMPILE_TEST
2018 # ISA-based Watchdog Cards
2021 comment "ISA-based Watchdog Cards"
2025 tristate "Berkshire Products ISA-PC Watchdog"
2028 This is the driver for the Berkshire Products ISA-PC Watchdog card.
2029 This card simply watches your kernel to make sure it doesn't freeze,
2030 and if it does, it reboots your computer after a certain amount of
2031 time. This driver is like the WDT501 driver but for different
2032 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. The PC
2033 watchdog cards can be ordered from <http://www.berkprod.com/>.
2035 To compile this driver as a module, choose M here: the
2036 module will be called pcwd.
2038 Most people will say N.
2041 tristate "Mixcom Watchdog"
2044 This is a driver for the Mixcom hardware watchdog cards. This
2045 watchdog simply watches your kernel to make sure it doesn't freeze,
2046 and if it does, it reboots your computer after a certain amount of
2049 To compile this driver as a module, choose M here: the
2050 module will be called mixcomwd.
2052 Most people will say N.
2055 tristate "WDT Watchdog timer"
2058 If you have a WDT500P or WDT501P watchdog board, say Y here,
2059 otherwise N. It is not possible to probe for this board, which means
2060 that you have to inform the kernel about the IO port and IRQ that
2061 is needed (you can do this via the io and irq parameters)
2063 To compile this driver as a module, choose M here: the
2064 module will be called wdt.
2067 # PCI-based Watchdog Cards
2070 comment "PCI-based Watchdog Cards"
2073 config PCIPCWATCHDOG
2074 tristate "Berkshire Products PCI-PC Watchdog"
2077 This is the driver for the Berkshire Products PCI-PC Watchdog card.
2078 This card simply watches your kernel to make sure it doesn't freeze,
2079 and if it does, it reboots your computer after a certain amount of
2080 time. The card can also monitor the internal temperature of the PC.
2081 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2083 To compile this driver as a module, choose M here: the
2084 module will be called pcwd_pci.
2086 Most people will say N.
2089 tristate "PCI-WDT500/501 Watchdog timer"
2092 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2094 If you have a PCI-WDT501 watchdog board then you can enable the
2095 temperature sensor by setting the type parameter to 501.
2097 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2098 can do this via the tachometer parameter. Only do this if you have a
2099 fan tachometer actually set up.
2101 To compile this driver as a module, choose M here: the
2102 module will be called wdt_pci.
2105 # USB-based Watchdog Cards
2108 comment "USB-based Watchdog Cards"
2111 config USBPCWATCHDOG
2112 tristate "Berkshire Products USB-PC Watchdog"
2115 This is the driver for the Berkshire Products USB-PC Watchdog card.
2116 This card simply watches your kernel to make sure it doesn't freeze,
2117 and if it does, it reboots your computer after a certain amount of
2118 time. The card can also monitor the internal temperature of the PC.
2119 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2121 To compile this driver as a module, choose M here: the
2122 module will be called pcwd_usb.
2124 Most people will say N.