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.txt> 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.
62 bool "Read different watchdog information through sysfs"
64 Say Y here if you want to enable watchdog device status read through
67 comment "Watchdog Pretimeout Governors"
69 config WATCHDOG_PRETIMEOUT_GOV
70 bool "Enable watchdog pretimeout governors"
71 depends on WATCHDOG_CORE
73 The option allows to select watchdog pretimeout governors.
75 config WATCHDOG_PRETIMEOUT_GOV_SEL
77 depends on WATCHDOG_PRETIMEOUT_GOV
79 select WATCHDOG_PRETIMEOUT_GOV_PANIC if WATCHDOG_PRETIMEOUT_GOV_NOOP=n
81 if WATCHDOG_PRETIMEOUT_GOV
83 config WATCHDOG_PRETIMEOUT_GOV_NOOP
84 tristate "Noop watchdog pretimeout governor"
85 depends on WATCHDOG_CORE
88 Noop watchdog pretimeout governor, only an informational
89 message is added to kernel log buffer.
91 config WATCHDOG_PRETIMEOUT_GOV_PANIC
92 tristate "Panic watchdog pretimeout governor"
93 depends on WATCHDOG_CORE
96 Panic watchdog pretimeout governor, on watchdog pretimeout
97 event put the kernel into panic.
100 prompt "Default Watchdog Pretimeout Governor"
101 default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
103 This option selects a default watchdog pretimeout governor.
104 The governor takes its action, if a watchdog is capable
105 to report a pretimeout event.
107 config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP
109 depends on WATCHDOG_PRETIMEOUT_GOV_NOOP
111 Use noop watchdog pretimeout governor by default. If noop
112 governor is selected by a user, write a short message to
113 the kernel log buffer and don't do any system changes.
115 config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
117 depends on WATCHDOG_PRETIMEOUT_GOV_PANIC
119 Use panic watchdog pretimeout governor by default, if
120 a watchdog pretimeout event happens, consider that
121 a watchdog feeder is dead and reboot is unavoidable.
125 endif # WATCHDOG_PRETIMEOUT_GOV
128 # General Watchdog drivers
131 comment "Watchdog Device Drivers"
133 # Architecture Independent
136 tristate "Software watchdog"
139 A software monitoring watchdog. This will fail to reboot your system
140 from some situations that the hardware watchdog will recover
141 from. Equally it's a lot cheaper to install.
143 To compile this driver as a module, choose M here: the
144 module will be called softdog.
146 config SOFT_WATCHDOG_PRETIMEOUT
147 bool "Software watchdog pretimeout governor support"
148 depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV
150 Enable this if you want to use pretimeout governors with the software
151 watchdog. Be aware that governors might affect the watchdog because it
152 is purely software, e.g. the panic governor will stall it!
154 config BD70528_WATCHDOG
155 tristate "ROHM BD70528 PMIC Watchdog"
156 depends on MFD_ROHM_BD70528
159 Support for the watchdog in the ROHM BD70528 PMIC. Watchdog trigger
162 Say Y here to include support for the ROHM BD70528 watchdog.
163 Alternatively say M to compile the driver as a module,
164 which will be called bd70528_wdt.
166 config DA9052_WATCHDOG
167 tristate "Dialog DA9052 Watchdog"
168 depends on PMIC_DA9052 || COMPILE_TEST
171 Support for the watchdog in the DA9052 PMIC. Watchdog trigger
174 Say Y here to include support for the DA9052 watchdog.
175 Alternatively say M to compile the driver as a module,
176 which will be called da9052_wdt.
178 config DA9055_WATCHDOG
179 tristate "Dialog Semiconductor DA9055 Watchdog"
180 depends on MFD_DA9055 || COMPILE_TEST
183 If you say yes here you get support for watchdog on the Dialog
184 Semiconductor DA9055 PMIC.
186 This driver can also be built as a module. If so, the module
187 will be called da9055_wdt.
189 config DA9063_WATCHDOG
190 tristate "Dialog DA9063 Watchdog"
191 depends on MFD_DA9063 || COMPILE_TEST
194 Support for the watchdog in the DA9063 PMIC.
196 This driver can be built as a module. The module name is da9063_wdt.
198 config DA9062_WATCHDOG
199 tristate "Dialog DA9062/61 Watchdog"
200 depends on MFD_DA9062 || COMPILE_TEST
203 Support for the watchdog in the DA9062 and DA9061 PMICs.
205 This driver can be built as a module. The module name is da9062_wdt.
208 tristate "Watchdog device controlled through GPIO-line"
212 If you say yes here you get support for watchdog device
213 controlled through GPIO-line.
215 config GPIO_WATCHDOG_ARCH_INITCALL
216 bool "Register the watchdog as early as possible"
217 depends on GPIO_WATCHDOG=y
219 In some situations, the default initcall level (module_init)
220 in not early enough in the boot process to avoid the watchdog
222 If you say yes here, the initcall level would be raised to
226 config MENF21BMC_WATCHDOG
227 tristate "MEN 14F021P00 BMC Watchdog"
228 depends on MFD_MENF21BMC || COMPILE_TEST
232 Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
234 This driver can also be built as a module. If so the module
235 will be called menf21bmc_wdt.
237 config MENZ069_WATCHDOG
238 tristate "MEN 16Z069 Watchdog"
242 Say Y here to include support for the MEN 16Z069 Watchdog.
244 This driver can also be built as a module. If so the module
245 will be called menz069_wdt.
247 config TANGOX_WATCHDOG
248 tristate "Sigma Designs SMP86xx/SMP87xx watchdog"
250 depends on ARCH_TANGO || COMPILE_TEST
253 Support for the watchdog in Sigma Designs SMP86xx (tango3)
254 and SMP87xx (tango4) family chips.
256 This driver can be built as a module. The module name is tangox_wdt.
259 tristate "ACPI Watchdog Action Table (WDAT)"
264 This driver adds support for systems with ACPI Watchdog Action
265 Table (WDAT) table. Servers typically have this but it can be
266 found on some desktop machines as well. This driver will take
267 over the native iTCO watchdog driver found on many Intel CPUs.
269 To compile this driver as module, choose M here: the module will
272 config WM831X_WATCHDOG
273 tristate "WM831x watchdog"
274 depends on MFD_WM831X
277 Support for the watchdog in the WM831x AudioPlus PMICs. When
278 the watchdog triggers the system will be reset.
280 config WM8350_WATCHDOG
281 tristate "WM8350 watchdog"
282 depends on MFD_WM8350
285 Support for the watchdog in the WM8350 AudioPlus PMIC. When
286 the watchdog triggers the system will be reset.
288 config XILINX_WATCHDOG
289 tristate "Xilinx Watchdog timer"
293 Watchdog driver for the xps_timebase_wdt ip core.
295 To compile this driver as a module, choose M here: the
296 module will be called of_xilinx_wdt.
298 config ZIIRAVE_WATCHDOG
299 tristate "Zodiac RAVE Watchdog Timer"
303 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
306 To compile this driver as a module, choose M here: the
307 module will be called ziirave_wdt.
309 config RAVE_SP_WATCHDOG
310 tristate "RAVE SP Watchdog timer"
311 depends on RAVE_SP_CORE
312 depends on NVMEM || !NVMEM
315 Support for the watchdog on RAVE SP device.
318 tristate "Mellanox Watchdog"
319 depends on MELLANOX_PLATFORM
323 This is the driver for the hardware watchdog on Mellanox systems.
324 If you are going to use it, say Y here, otherwise N.
325 This driver can be used together with the watchdog daemon.
326 It can also watch your kernel to make sure it doesn't freeze,
327 and if it does, it reboots your system after a certain amount of
330 To compile this driver as a module, choose M here: the
331 module will be called mlx-wdt.
337 config ARM_SP805_WATCHDOG
338 tristate "ARM SP805 Watchdog"
339 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
342 ARM Primecell SP805 Watchdog timer. This will reboot your system when
343 the timeout is reached.
345 config ARM_SBSA_WATCHDOG
346 tristate "ARM SBSA Generic Watchdog"
348 depends on ARM_ARCH_TIMER
351 ARM SBSA Generic Watchdog has two stage timeouts:
352 the first signal (WS0) is for alerting the system by interrupt,
353 the second one (WS1) is a real hardware reset.
354 More details: ARM DEN0029B - Server Base System Architecture (SBSA)
356 This driver can operate ARM SBSA Generic Watchdog as a single stage
357 or a two stages watchdog, it depends on the module parameter "action".
359 Note: the maximum timeout in the two stages mode is half of that in
360 the single stage mode.
362 To compile this driver as module, choose M here: The module
363 will be called sbsa_gwdt.
365 config ARMADA_37XX_WATCHDOG
366 tristate "Armada 37xx watchdog"
367 depends on ARCH_MVEBU || COMPILE_TEST
371 Say Y here to include support for the watchdog timer found on
372 Marvell Armada 37xx SoCs.
373 To compile this driver as a module, choose M here: the
374 module will be called armada_37xx_wdt.
376 config ASM9260_WATCHDOG
377 tristate "Alphascale ASM9260 watchdog"
378 depends on MACH_ASM9260 || COMPILE_TEST
381 select RESET_CONTROLLER
383 Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your
384 system when the timeout is reached.
386 config AT91RM9200_WATCHDOG
387 tristate "AT91RM9200 watchdog"
388 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
390 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
391 system when the timeout is reached.
393 config AT91SAM9X_WATCHDOG
394 tristate "AT91SAM9X / AT91CAP9 watchdog"
395 depends on ARCH_AT91 || COMPILE_TEST
398 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
399 reboot your system when the timeout is reached.
401 config SAMA5D4_WATCHDOG
402 tristate "Atmel SAMA5D4 Watchdog Timer"
403 depends on ARCH_AT91 || COMPILE_TEST
406 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
407 Its Watchdog Timer Mode Register can be written more than once.
408 This will reboot your system when the timeout is reached.
410 config CADENCE_WATCHDOG
411 tristate "Cadence Watchdog Timer"
415 Say Y here if you want to include support for the watchdog
416 timer in the Xilinx Zynq.
418 config 21285_WATCHDOG
419 tristate "DC21285 watchdog"
420 depends on FOOTBRIDGE
422 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
423 here if you wish to use this. Alternatively say M to compile the
424 driver as a module, which will be called wdt285.
426 This driver does not work on all machines. In particular, early CATS
427 boards have hardware problems that will cause the machine to simply
428 lock up if the watchdog fires.
430 "If in doubt, leave it out" - say N.
433 tristate "NetWinder WB83C977 watchdog"
434 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
436 Say Y here to include support for the WB977 watchdog included in
437 NetWinder machines. Alternatively say M to compile the driver as
438 a module, which will be called wdt977.
440 Not sure? It's safe to say N.
442 config FTWDT010_WATCHDOG
443 tristate "Faraday Technology FTWDT010 watchdog"
444 depends on ARM || COMPILE_TEST
448 Say Y here if to include support for the Faraday Technology
449 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
452 To compile this driver as a module, choose M here: the
453 module will be called ftwdt010_wdt.
455 config IXP4XX_WATCHDOG
456 tristate "IXP4xx Watchdog"
457 depends on ARCH_IXP4XX
459 Say Y here if to include support for the watchdog timer
460 in the Intel IXP4xx network processors. This driver can
461 be built as a module by choosing M. The module will
462 be called ixp4xx_wdt.
464 Note: The internal IXP4xx watchdog does a soft CPU reset
465 which doesn't reset any peripherals. There are circumstances
466 where the watchdog will fail to reset the board correctly
467 (e.g., if the boot ROM is in an unreadable state).
469 Say N if you are unsure.
471 config KS8695_WATCHDOG
472 tristate "KS8695 watchdog"
473 depends on ARCH_KS8695
475 Watchdog timer embedded into KS8695 processor. This will reboot your
476 system when the timeout is reached.
478 config HAVE_S3C2410_WATCHDOG
481 This will include watchdog timer support for Samsung SoCs. If
482 you want to include watchdog support for any machine, kindly
483 select this in the respective mach-XXXX/Kconfig file.
485 config S3C2410_WATCHDOG
486 tristate "S3C2410 Watchdog"
487 depends on HAVE_S3C2410_WATCHDOG || COMPILE_TEST
489 select MFD_SYSCON if ARCH_EXYNOS
491 Watchdog timer block in the Samsung SoCs. This will reboot
492 the system when the timer expires with the watchdog enabled.
494 The driver is limited by the speed of the system's PCLK
495 signal, so with reasonably fast systems (PCLK around 50-66MHz)
496 then watchdog intervals of over approximately 20seconds are
499 The driver can be built as a module by choosing M, and will
500 be called s3c2410_wdt
502 config SA1100_WATCHDOG
503 tristate "SA1100/PXA2xx watchdog"
504 depends on ARCH_SA1100 || ARCH_PXA
506 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
507 reboot your system when timeout is reached.
509 NOTE: once enabled, this timer cannot be disabled.
511 To compile this driver as a module, choose M here: the
512 module will be called sa1100_wdt.
515 tristate "Synopsys DesignWare watchdog"
519 Say Y here if to include support for the Synopsys DesignWare
520 watchdog timer found in many chips.
521 To compile this driver as a module, choose M here: the
522 module will be called dw_wdt.
524 config EP93XX_WATCHDOG
525 tristate "EP93xx Watchdog"
526 depends on ARCH_EP93XX || COMPILE_TEST
529 Say Y here if to include support for the watchdog timer
530 embedded in the Cirrus Logic EP93xx family of devices.
532 To compile this driver as a module, choose M here: the
533 module will be called ep93xx_wdt.
536 tristate "OMAP Watchdog"
537 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
540 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
541 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
543 config PNX4008_WATCHDOG
544 tristate "LPC32XX Watchdog"
545 depends on ARCH_LPC32XX
548 Say Y here if to include support for the watchdog timer
549 in the LPC32XX processor.
550 This driver can be built as a module by choosing M. The module
551 will be called pnx4008_wdt.
553 Say N if you are unsure.
556 tristate "IOP Watchdog"
557 depends on ARCH_IOP13XX
558 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
560 Say Y here if to include support for the watchdog timer
561 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
562 be built as a module by choosing M. The module will
565 Note: The IOP13XX watchdog does an Internal Bus Reset which will
566 affect both cores and the peripherals of the IOP. The ATU-X
567 and/or ATUe configuration registers will remain intact, but if
568 operating as an Root Complex and/or Central Resource, the PCI-X
569 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
571 config DAVINCI_WATCHDOG
572 tristate "DaVinci watchdog"
573 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
576 Say Y here if to include support for the watchdog timer
577 in the DaVinci DM644x/DM646x or Keystone processors.
578 To compile this driver as a module, choose M here: the
579 module will be called davinci_wdt.
581 NOTE: once enabled, this timer cannot be disabled.
582 Say N if you are unsure.
584 config ORION_WATCHDOG
585 tristate "Orion watchdog"
586 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || (COMPILE_TEST && !ARCH_EBSA110)
590 Say Y here if to include support for the watchdog timer
591 in the Marvell Orion5x and Kirkwood ARM SoCs.
592 To compile this driver as a module, choose M here: the
593 module will be called orion_wdt.
595 config RN5T618_WATCHDOG
596 tristate "Ricoh RN5T618 watchdog"
597 depends on MFD_RN5T618 || COMPILE_TEST
600 If you say yes here you get support for watchdog on the Ricoh
603 This driver can also be built as a module. If so, the module
604 will be called rn5t618_wdt.
606 config SUNXI_WATCHDOG
607 tristate "Allwinner SoCs watchdog support"
608 depends on ARCH_SUNXI || COMPILE_TEST
611 Say Y here to include support for the watchdog timer
613 To compile this driver as a module, choose M here: the
614 module will be called sunxi_wdt.
616 config COH901327_WATCHDOG
617 bool "ST-Ericsson COH 901 327 watchdog"
618 depends on ARCH_U300 || (ARM && COMPILE_TEST)
619 default y if MACH_U300
622 Say Y here to include Watchdog timer support for the
623 watchdog embedded into the ST-Ericsson U300 series platforms.
624 This watchdog is used to reset the system and thus cannot be
625 compiled as a module.
627 config NPCM7XX_WATCHDOG
628 tristate "Nuvoton NPCM750 watchdog"
629 depends on ARCH_NPCM || COMPILE_TEST
630 default y if ARCH_NPCM7XX
633 Say Y here to include Watchdog timer support for the
634 watchdog embedded into the NPCM7xx.
635 This watchdog is used to reset the system and thus cannot be
636 compiled as a module.
638 config TWL4030_WATCHDOG
639 tristate "TWL4030 Watchdog"
640 depends on TWL4030_CORE
643 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
644 watchdog timer support for TWL4030 chips.
646 config STMP3XXX_RTC_WATCHDOG
647 tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
648 depends on RTC_DRV_STMP || COMPILE_TEST
651 Say Y here to include support for the watchdog timer inside
652 the RTC for the STMP37XX/378X or i.MX23/28 SoC.
653 To compile this driver as a module, choose M here: the
654 module will be called stmp3xxx_rtc_wdt.
656 config NUC900_WATCHDOG
657 tristate "Nuvoton NUC900 watchdog"
658 depends on ARCH_W90X900 || COMPILE_TEST
660 Say Y here if to include support for the watchdog timer
661 for the Nuvoton NUC900 series SoCs.
662 To compile this driver as a module, choose M here: the
663 module will be called nuc900_wdt.
665 config TS4800_WATCHDOG
666 tristate "TS-4800 Watchdog"
667 depends on HAS_IOMEM && OF
668 depends on SOC_IMX51 || COMPILE_TEST
672 Technologic Systems TS-4800 has watchdog timer implemented in
673 an external FPGA. Say Y here if you want to support for the
674 watchdog timer on TS-4800 board.
676 config TS72XX_WATCHDOG
677 tristate "TS-72XX SBC Watchdog"
678 depends on MACH_TS72XX || COMPILE_TEST
680 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
681 watchdog timer implemented in a external CPLD chip. Say Y here
682 if you want to support for the watchdog timer on TS-72XX boards.
684 To compile this driver as a module, choose M here: the
685 module will be called ts72xx_wdt.
687 config MAX63XX_WATCHDOG
688 tristate "Max63xx watchdog"
692 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
694 config MAX77620_WATCHDOG
695 tristate "Maxim Max77620 Watchdog Timer"
696 depends on MFD_MAX77620 || COMPILE_TEST
698 This is the driver for the Max77620 watchdog timer.
699 Say 'Y' here to enable the watchdog timer support for
700 MAX77620 chips. To compile this driver as a module,
701 choose M here: the module will be called max77620_wdt.
704 tristate "IMX2+ Watchdog"
705 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
709 This is the driver for the hardware watchdog
710 on the Freescale IMX2 and later processors.
711 If you have one of these processors and wish to have
712 watchdog support enabled, say Y, otherwise say N.
714 To compile this driver as a module, choose M here: the
715 module will be called imx2_wdt.
718 tristate "IMX SC Watchdog"
719 depends on HAVE_ARM_SMCCC
722 This is the driver for the system controller watchdog
723 on the NXP i.MX SoCs with system controller inside, the
724 watchdog driver will call ARM SMC API and trap into
725 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
726 will request system controller to execute the operations.
727 If you have one of these processors and wish to have
728 watchdog support enabled, say Y, otherwise say N.
730 To compile this driver as a module, choose M here: the
731 module will be called imx_sc_wdt.
733 config UX500_WATCHDOG
734 tristate "ST-Ericsson Ux500 watchdog"
735 depends on MFD_DB8500_PRCMU
739 Say Y here to include Watchdog timer support for the watchdog
740 existing in the prcmu of ST-Ericsson Ux500 series platforms.
742 To compile this driver as a module, choose M here: the
743 module will be called ux500_wdt.
746 tristate "Retu watchdog"
750 Retu watchdog driver for Nokia Internet Tablets (770, N800,
751 N810). At least on N800 the watchdog cannot be disabled, so
752 this driver is essential and you should enable it.
754 To compile this driver as a module, choose M here: the
755 module will be called retu_wdt.
758 tristate "MOXART watchdog"
759 depends on ARCH_MOXART || COMPILE_TEST
761 Say Y here to include Watchdog timer support for the watchdog
762 existing on the MOXA ART SoC series platforms.
764 To compile this driver as a module, choose M here: the
765 module will be called moxart_wdt.
767 config SIRFSOC_WATCHDOG
768 tristate "SiRFSOC watchdog"
769 depends on ARCH_SIRF || COMPILE_TEST
773 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
774 the watchdog triggers the system will be reset.
776 config ST_LPC_WATCHDOG
777 tristate "STMicroelectronics LPC Watchdog"
778 depends on ARCH_STI || COMPILE_TEST
782 Say Y here to include STMicroelectronics Low Power Controller
783 (LPC) based Watchdog timer support.
785 To compile this driver as a module, choose M here: the
786 module will be called st_lpc_wdt.
788 config TEGRA_WATCHDOG
789 tristate "Tegra watchdog"
790 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
793 Say Y here to include support for the watchdog timer
794 embedded in NVIDIA Tegra SoCs.
796 To compile this driver as a module, choose M here: the
797 module will be called tegra_wdt.
800 tristate "QCOM watchdog"
802 depends on ARCH_QCOM || COMPILE_TEST
805 Say Y here to include Watchdog timer support for the watchdog found
806 on QCOM chipsets. Currently supported targets are the MSM8960,
807 APQ8064, and IPQ8064.
809 To compile this driver as a module, choose M here: the
810 module will be called qcom_wdt.
812 config MESON_GXBB_WATCHDOG
813 tristate "Amlogic Meson GXBB SoCs watchdog support"
814 depends on ARCH_MESON || COMPILE_TEST
817 Say Y here to include support for the watchdog timer
818 in Amlogic Meson GXBB SoCs.
819 To compile this driver as a module, choose M here: the
820 module will be called meson_gxbb_wdt.
822 config MESON_WATCHDOG
823 tristate "Amlogic Meson SoCs watchdog support"
824 depends on ARCH_MESON || COMPILE_TEST
827 Say Y here to include support for the watchdog timer
828 in Amlogic Meson SoCs.
829 To compile this driver as a module, choose M here: the
830 module will be called meson_wdt.
832 config MEDIATEK_WATCHDOG
833 tristate "Mediatek SoCs watchdog support"
834 depends on ARCH_MEDIATEK || COMPILE_TEST
837 Say Y here to include support for the watchdog timer
839 To compile this driver as a module, choose M here: the
840 module will be called mtk_wdt.
842 config DIGICOLOR_WATCHDOG
843 tristate "Conexant Digicolor SoCs watchdog support"
844 depends on ARCH_DIGICOLOR || COMPILE_TEST
847 Say Y here to include support for the watchdog timer
848 in Conexant Digicolor SoCs.
849 To compile this driver as a module, choose M here: the
850 module will be called digicolor_wdt.
852 config LPC18XX_WATCHDOG
853 tristate "LPC18xx/43xx Watchdog"
854 depends on ARCH_LPC18XX || COMPILE_TEST
858 Say Y here if to include support for the watchdog timer
859 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
861 To compile this driver as a module, choose M here: the
862 module will be called lpc18xx_wdt.
864 config ATLAS7_WATCHDOG
865 tristate "CSRatlas7 watchdog"
866 depends on ARCH_ATLAS7 || COMPILE_TEST
868 Say Y here to include Watchdog timer support for the watchdog
869 existing on the CSRatlas7 series platforms.
871 To compile this driver as a module, choose M here: the
872 module will be called atlas7_wdt.
875 tristate "Renesas WDT Watchdog"
876 depends on ARCH_RENESAS || COMPILE_TEST
879 This driver adds watchdog support for the integrated watchdogs in the
880 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
882 config RENESAS_RZAWDT
883 tristate "Renesas RZ/A WDT Watchdog"
884 depends on ARCH_RENESAS || COMPILE_TEST
887 This driver adds watchdog support for the integrated watchdogs in the
888 Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
890 config ASPEED_WATCHDOG
891 tristate "Aspeed BMC watchdog support"
892 depends on ARCH_ASPEED || COMPILE_TEST
895 Say Y here to include support for the watchdog timer
898 This driver is required to reboot the SoC.
900 To compile this driver as a module, choose M here: the
901 module will be called aspeed_wdt.
903 config ZX2967_WATCHDOG
904 tristate "ZTE zx2967 SoCs watchdog support"
908 Say Y here to include support for the watchdog timer
910 To compile this driver as a module, choose M here: the
911 module will be called zx2967_wdt.
913 config STM32_WATCHDOG
914 tristate "STM32 Independent WatchDoG (IWDG) support"
915 depends on ARCH_STM32
919 Say Y here to include support for the watchdog timer
922 To compile this driver as a module, choose M here: the
923 module will be called stm32_iwdg.
925 config STPMIC1_WATCHDOG
926 tristate "STPMIC1 PMIC watchdog support"
927 depends on MFD_STPMIC1
930 Say Y here to include watchdog support embedded into STPMIC1 PMIC.
931 If the watchdog timer expires, stpmic1 will shut down all its power
934 To compile this driver as a module, choose M here: the
935 module will be called spmic1_wdt.
937 config UNIPHIER_WATCHDOG
938 tristate "UniPhier watchdog support"
939 depends on ARCH_UNIPHIER || COMPILE_TEST
940 depends on OF && MFD_SYSCON
943 Say Y here to include support watchdog timer embedded
944 into the UniPhier system.
946 To compile this driver as a module, choose M here: the
947 module will be called uniphier_wdt.
949 config RTD119X_WATCHDOG
950 bool "Realtek RTD119x/RTD129x watchdog support"
951 depends on ARCH_REALTEK || COMPILE_TEST
956 Say Y here to include support for the watchdog timer in
957 Realtek RTD1295 SoCs.
960 tristate "Spreadtrum watchdog support"
961 depends on ARCH_SPRD || COMPILE_TEST
964 Say Y here to include watchdog timer supported
965 by Spreadtrum system.
967 config PM8916_WATCHDOG
968 tristate "QCOM PM8916 pmic watchdog"
969 depends on OF && MFD_SPMI_PMIC
972 Say Y here to include support watchdog timer embedded into the
975 # X86 (i386 + ia64 + x86_64) Architecture
978 tristate "Acquire SBC Watchdog Timer"
981 This is the driver for the hardware watchdog on Single Board
982 Computers produced by Acquire Inc (and others). This watchdog
983 simply watches your kernel to make sure it doesn't freeze, and if
984 it does, it reboots your computer after a certain amount of time.
986 To compile this driver as a module, choose M here: the
987 module will be called acquirewdt.
989 Most people will say N.
992 tristate "Advantech SBC Watchdog Timer"
995 If you are configuring a Linux kernel for the Advantech single-board
996 computer, say `Y' here to support its built-in watchdog timer
997 feature. More information can be found at
998 <http://www.advantech.com.tw/products/>
1001 tristate "ALi M1535 PMU Watchdog Timer"
1002 depends on X86 && PCI
1004 This is the driver for the hardware watchdog on the ALi M1535 PMU.
1006 To compile this driver as a module, choose M here: the
1007 module will be called alim1535_wdt.
1009 Most people will say N.
1012 tristate "ALi M7101 PMU Computer Watchdog"
1015 This is the driver for the hardware watchdog on the ALi M7101 PMU
1016 as used in the x86 Cobalt servers and also found in some
1017 SPARC Netra servers too.
1019 To compile this driver as a module, choose M here: the
1020 module will be called alim7101_wdt.
1022 Most people will say N.
1025 tristate "WinSystems EBC-C384 Watchdog Timer"
1028 select WATCHDOG_CORE
1030 Enables watchdog timer support for the watchdog timer on the
1031 WinSystems EBC-C384 motherboard. The timeout may be configured via
1032 the timeout module parameter.
1035 tristate "Fintek F718xx, F818xx Super I/O Watchdog"
1038 This is the driver for the hardware watchdog on the Fintek F71808E,
1039 F71862FG, F71868, F71869, F71882FG, F71889FG, F81865 and F81866
1040 Super I/O controllers.
1042 You can compile this driver directly into the kernel, or use
1043 it as a module. The module will be called f71808e_wdt.
1046 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
1047 depends on X86 && PCI
1048 select WATCHDOG_CORE
1050 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
1051 (Total Cost of Ownership) timer is a watchdog timer that will reboot
1052 the machine after its expiration. The expiration time can be
1053 configured with the "heartbeat" parameter.
1055 To compile this driver as a module, choose M here: the
1056 module will be called sp5100_tco.
1059 tristate "AMD Geode CS5535/CS5536 Watchdog"
1060 depends on CS5535_MFGPT
1062 This driver enables a watchdog capability built into the
1063 CS5535/CS5536 companion chips for the AMD Geode GX and LX
1064 processors. This watchdog watches your kernel to make sure
1065 it doesn't freeze, and if it does, it reboots your computer after
1066 a certain amount of time.
1068 You can compile this driver directly into the kernel, or use
1069 it as a module. The module will be called geodewdt.
1072 tristate "AMD Elan SC520 processor Watchdog"
1073 depends on MELAN || COMPILE_TEST
1075 This is the driver for the hardware watchdog built in to the
1076 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
1077 This watchdog simply watches your kernel to make sure it doesn't
1078 freeze, and if it does, it reboots your computer after a certain
1081 You can compile this driver directly into the kernel, or use
1082 it as a module. The module will be called sc520_wdt.
1084 config SBC_FITPC2_WATCHDOG
1085 tristate "Compulab SBC-FITPC2 watchdog"
1088 This is the driver for the built-in watchdog timer on the fit-PC2,
1089 fit-PC2i, CM-iAM single-board computers made by Compulab.
1091 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
1092 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
1094 Entering BIOS setup temporary disables watchdog operation regardless to current state,
1095 so system will not be restarted while user in BIOS setup.
1097 Once watchdog was enabled the system will be restarted every
1098 "Watchdog Timer Value" period, so to prevent it user can restart or
1099 disable the watchdog.
1101 To compile this driver as a module, choose M here: the
1102 module will be called sbc_fitpc2_wdt.
1104 Most people will say N.
1107 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1110 Enable support for the watchdog timer on the Eurotech CPU-1220 and
1111 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
1112 information are at <http://www.eurotech.it/>.
1115 tristate "IB700 SBC Watchdog Timer"
1118 This is the driver for the hardware watchdog on the IB700 Single
1119 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
1120 simply watches your kernel to make sure it doesn't freeze, and if
1121 it does, it reboots your computer after a certain amount of time.
1123 This driver is like the WDT501 driver but for slightly different hardware.
1125 To compile this driver as a module, choose M here: the
1126 module will be called ib700wdt.
1128 Most people will say N.
1131 tristate "IBM Automatic Server Restart"
1134 This is the driver for the IBM Automatic Server Restart watchdog
1135 timer built-in into some eServer xSeries machines.
1137 To compile this driver as a module, choose M here: the
1138 module will be called ibmasr.
1141 tristate "ICP Single Board Computer Watchdog Timer"
1144 This is a driver for the hardware watchdog on the ICP Single
1145 Board Computer. This driver is working on (at least) the following
1146 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1148 To compile this driver as a module, choose M here: the
1149 module will be called wafer5823wdt.
1152 tristate "Intel 6300ESB Timer/Watchdog"
1154 select WATCHDOG_CORE
1156 Hardware driver for the watchdog timer built into the Intel
1157 6300ESB controller hub.
1159 To compile this driver as a module, choose M here: the
1160 module will be called i6300esb.
1163 tristate "Intel Atom E6xx Watchdog"
1164 depends on X86 && PCI
1165 select WATCHDOG_CORE
1169 Hardware driver for the watchdog timer built into the Intel
1170 Atom E6XX (TunnelCreek) processor.
1172 To compile this driver as a module, choose M here: the
1173 module will be called ie6xx_wdt.
1175 config INTEL_SCU_WATCHDOG
1176 bool "Intel SCU Watchdog for Mobile Platforms"
1177 depends on X86_INTEL_MID
1179 Hardware driver for the watchdog time built into the Intel SCU
1180 for Intel Mobile Platforms.
1182 To compile this driver as a module, choose M here.
1184 config INTEL_MID_WATCHDOG
1185 tristate "Intel MID Watchdog Timer"
1186 depends on X86_INTEL_MID
1187 select WATCHDOG_CORE
1189 Watchdog timer driver built into the Intel SCU for Intel MID
1192 This driver currently supports only the watchdog evolution
1193 implementation in SCU, available for Merrifield generation.
1195 To compile this driver as a module, choose M here.
1198 tristate "Intel TCO Timer/Watchdog"
1199 depends on (X86 || IA64) && PCI
1200 select WATCHDOG_CORE
1201 depends on I2C || I2C=n
1202 select LPC_ICH if !EXPERT
1203 select I2C_I801 if !EXPERT && I2C
1205 Hardware driver for the intel TCO timer based watchdog devices.
1206 These drivers are included in the Intel 82801 I/O Controller
1207 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1210 The TCO (Total Cost of Ownership) timer is a watchdog timer
1211 that will reboot the machine after its second expiration. The
1212 expiration time can be configured with the "heartbeat" parameter.
1214 On some motherboards the driver may fail to reset the chipset's
1215 NO_REBOOT flag which prevents the watchdog from rebooting the
1216 machine. If this is the case you will get a kernel message like
1217 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1219 To compile this driver as a module, choose M here: the
1220 module will be called iTCO_wdt.
1222 config ITCO_VENDOR_SUPPORT
1223 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1226 Add vendor specific support to the intel TCO timer based watchdog
1227 devices. At this moment we only have additional support for some
1228 SuperMicro Inc. motherboards.
1231 tristate "IT8712F (Smart Guardian) Watchdog Timer"
1234 This is the driver for the built-in watchdog timer on the IT8712F
1235 Super I/0 chipset used on many motherboards.
1237 If the driver does not work, then make sure that the game port in
1238 the BIOS is enabled.
1240 To compile this driver as a module, choose M here: the
1241 module will be called it8712f_wdt.
1244 tristate "IT87 Watchdog Timer"
1246 select WATCHDOG_CORE
1248 This is the driver for the hardware watchdog on the ITE IT8607,
1249 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1250 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1251 IT8783 Super I/O chips.
1253 This watchdog simply watches your kernel to make sure it doesn't
1254 freeze, and if it does, it reboots your computer after a certain
1257 To compile this driver as a module, choose M here: the module will
1261 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1262 select WATCHDOG_CORE
1263 depends on X86 && PCI
1265 A software monitoring watchdog and NMI handling driver. This driver
1266 will detect lockups and provide a stack trace. This is a driver that
1267 will only load on an HP ProLiant system with a minimum of iLO2 support.
1268 To compile this driver as a module, choose M here: the module will be
1271 config HPWDT_NMI_DECODING
1272 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1273 depends on HP_WATCHDOG
1276 Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1277 "Generate NMI to System" virtual button. When an NMI is claimed
1278 by the driver, panic is called.
1281 tristate "Kontron COM Watchdog Timer"
1282 depends on MFD_KEMPLD
1283 select WATCHDOG_CORE
1285 Support for the PLD watchdog on some Kontron ETX and COMexpress
1286 (ETXexpress) modules
1288 This driver can also be built as a module. If so, the module will be
1292 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1295 This is a driver for National Semiconductor PC87307/PC97307 hardware
1296 watchdog cards as found on the SC1200. This watchdog is mainly used
1297 for power management purposes and can be used to power down the device
1298 during inactivity periods (includes interrupt activity monitoring).
1300 To compile this driver as a module, choose M here: the
1301 module will be called sc1200wdt.
1303 Most people will say N.
1306 tristate "National Semiconductor SCx200 Watchdog"
1307 depends on SCx200 && PCI
1309 Enable the built-in watchdog timer support on the National
1310 Semiconductor SCx200 processors.
1312 If compiled as a module, it will be called scx200_wdt.
1315 tristate "NS PC87413 watchdog"
1318 This is the driver for the hardware watchdog on the PC87413 chipset
1319 This watchdog simply watches your kernel to make sure it doesn't
1320 freeze, and if it does, it reboots your computer after a certain
1323 To compile this driver as a module, choose M here: the
1324 module will be called pc87413_wdt.
1326 Most people will say N.
1329 tristate "nVidia TCO Timer/Watchdog"
1330 depends on X86 && PCI
1332 Hardware driver for the TCO timer built into the nVidia Hub family
1333 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
1334 watchdog timer that will reboot the machine after its second
1335 expiration. The expiration time can be configured with the
1336 "heartbeat" parameter.
1338 On some motherboards the driver may fail to reset the chipset's
1339 NO_REBOOT flag which prevents the watchdog from rebooting the
1340 machine. If this is the case you will get a kernel message like
1341 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1343 To compile this driver as a module, choose M here: the
1344 module will be called nv_tco.
1347 tristate "RDC R-321x SoC watchdog"
1348 depends on X86_RDC321X || COMPILE_TEST
1351 This is the driver for the built in hardware watchdog
1352 in the RDC R-321x SoC.
1354 To compile this driver as a module, choose M here: the
1355 module will be called rdc321x_wdt.
1358 tristate "SBC-60XX Watchdog Timer"
1361 This driver can be used with the watchdog timer found on some
1362 single board computers, namely the 6010 PII based computer.
1363 It may well work with other cards. It reads port 0x443 to enable
1364 and re-set the watchdog timer, and reads port 0x45 to disable
1365 the watchdog. If you have a card that behave in similar ways,
1366 you can probably make this driver work with your card as well.
1368 You can compile this driver directly into the kernel, or use
1369 it as a module. The module will be called sbc60xxwdt.
1372 tristate "SBC8360 Watchdog Timer"
1376 This is the driver for the hardware watchdog on the SBC8360 Single
1377 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1379 To compile this driver as a module, choose M here: the
1380 module will be called sbc8360.
1382 Most people will say N.
1385 tristate "SBC Nano 7240 Watchdog Timer"
1386 depends on X86_32 && !UML
1388 This is the driver for the hardware watchdog found on the IEI
1389 single board computers EPIC Nano 7240 (and likely others). This
1390 watchdog simply watches your kernel to make sure it doesn't freeze,
1391 and if it does, it reboots your computer after a certain amount of
1394 To compile this driver as a module, choose M here: the
1395 module will be called sbc7240_wdt.
1398 tristate "SMA CPU5 Watchdog"
1402 To compile this driver as a module, choose M here: the
1403 module will be called cpu5wdt.
1405 config SMSC_SCH311X_WDT
1406 tristate "SMSC SCH311X Watchdog Timer"
1409 This is the driver for the hardware watchdog timer on the
1410 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1411 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1414 To compile this driver as a module, choose M here: the
1415 module will be called sch311x_wdt.
1417 config SMSC37B787_WDT
1418 tristate "Winbond SMsC37B787 Watchdog Timer"
1421 This is the driver for the hardware watchdog component on the
1422 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1423 from Vision Systems and maybe others.
1425 This watchdog simply watches your kernel to make sure it doesn't
1426 freeze, and if it does, it reboots your computer after a certain
1429 Usually a userspace daemon will notify the kernel WDT driver that
1430 userspace is still alive, at regular intervals.
1432 To compile this driver as a module, choose M here: the
1433 module will be called smsc37b787_wdt.
1435 Most people will say N.
1438 tristate "TQ-Systems TQMX86 Watchdog Timer"
1441 This is the driver for the hardware watchdog timer in the TQMX86 IO
1442 controller found on some of their ComExpress Modules.
1444 To compile this driver as a module, choose M here; the module
1445 will be called tqmx86_wdt.
1447 Most people will say N.
1450 tristate "VIA Watchdog Timer"
1451 depends on X86 && PCI
1452 select WATCHDOG_CORE
1454 This is the driver for the hardware watchdog timer on VIA
1455 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1457 To compile this driver as a module, choose M here; the module
1458 will be called via_wdt.
1460 Most people will say N.
1463 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1465 select WATCHDOG_CORE
1467 This is the driver for the hardware watchdog on the following
1469 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1482 This watchdog simply watches your kernel to make sure it doesn't
1483 freeze, and if it does, it reboots your computer after a certain
1486 To compile this driver as a module, choose M here: the
1487 module will be called w83627hf_wdt.
1489 Most people will say N.
1492 tristate "W83877F (EMACS) Watchdog Timer"
1495 This is the driver for the hardware watchdog on the W83877F chipset
1496 as used in EMACS PC-104 motherboards (and likely others). This
1497 watchdog simply watches your kernel to make sure it doesn't freeze,
1498 and if it does, it reboots your computer after a certain amount of
1501 To compile this driver as a module, choose M here: the
1502 module will be called w83877f_wdt.
1504 Most people will say N.
1507 tristate "W83977F (PCM-5335) Watchdog Timer"
1510 This is the driver for the hardware watchdog on the W83977F I/O chip
1511 as used in AAEON's PCM-5335 SBC (and likely others). This
1512 watchdog simply watches your kernel to make sure it doesn't freeze,
1513 and if it does, it reboots your computer after a certain amount of
1516 To compile this driver as a module, choose M here: the
1517 module will be called w83977f_wdt.
1520 tristate "ZF MachZ Watchdog"
1523 If you are using a ZF Micro MachZ processor, say Y here, otherwise
1524 N. This is the driver for the watchdog timer built-in on that
1525 processor using ZF-Logic interface. This watchdog simply watches
1526 your kernel to make sure it doesn't freeze, and if it does, it
1527 reboots your computer after a certain amount of time.
1529 To compile this driver as a module, choose M here: the
1530 module will be called machzwd.
1532 config SBC_EPX_C3_WATCHDOG
1533 tristate "Winsystems SBC EPX-C3 watchdog"
1536 This is the driver for the built-in watchdog timer on the EPX-C3
1537 Single-board computer made by Winsystems, Inc.
1539 *Note*: This hardware watchdog is not probeable and thus there
1540 is no way to know if writing to its IO address will corrupt
1541 your system or have any real effect. The only way to be sure
1542 that this driver does what you want is to make sure you
1543 are running it on an EPX-C3 from Winsystems with the watchdog
1544 timer at IO address 0x1ee and 0x1ef. It will write to both those
1545 IO ports. Basically, the assumption is made that if you compile
1546 this driver into your kernel and/or load it as a module, that you
1547 know what you are doing and that you are in fact running on an
1550 To compile this driver as a module, choose M here: the
1551 module will be called sbc_epx_c3.
1553 config INTEL_MEI_WDT
1554 tristate "Intel MEI iAMT Watchdog"
1555 depends on INTEL_MEI && X86
1556 select WATCHDOG_CORE
1558 A device driver for the Intel MEI iAMT watchdog.
1560 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1561 Whenever the OS hangs or crashes, iAMT will send an event
1562 to any subscriber to this event. The watchdog doesn't reset the
1565 To compile this driver as a module, choose M here:
1566 the module will be called mei_wdt.
1569 tristate "NI 903x/913x Watchdog"
1570 depends on X86 && ACPI
1571 select WATCHDOG_CORE
1573 This is the driver for the watchdog timer on the National Instruments
1574 903x/913x real-time controllers.
1576 To compile this driver as a module, choose M here: the module will be
1580 tristate "NIC7018 Watchdog"
1581 depends on X86 && ACPI
1582 select WATCHDOG_CORE
1584 Support for National Instruments NIC7018 Watchdog.
1586 To compile this driver as a module, choose M here: the module will be
1591 config M54xx_WATCHDOG
1592 tristate "MCF54xx watchdog support"
1595 To compile this driver as a module, choose M here: the
1596 module will be called m54xx_wdt.
1598 # MicroBlaze Architecture
1603 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1604 depends on ATH79 || (ARM && COMPILE_TEST)
1606 Hardware driver for the built-in watchdog timer on the Atheros
1607 AR71XX/AR724X/AR913X SoCs.
1610 tristate "Broadcom BCM47xx Watchdog Timer"
1611 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1612 select WATCHDOG_CORE
1614 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1617 tristate "IDT RC32434 SoC Watchdog Timer"
1618 depends on MIKROTIK_RB532
1620 Hardware driver for the IDT RC32434 SoC built-in
1623 To compile this driver as a module, choose M here: the
1624 module will be called rc32434_wdt.
1627 tristate "Indy/I2 Hardware Watchdog"
1628 depends on SGI_HAS_INDYDOG
1630 Hardware driver for the Indy's/I2's watchdog. This is a
1631 watchdog timer that will reboot the machine after a 60 second
1632 timer expired and no process has written to /dev/watchdog during
1636 tristate "Ingenic jz4740 SoC hardware watchdog"
1637 depends on MACH_JZ4740 || MACH_JZ4780
1638 select WATCHDOG_CORE
1640 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1643 tristate "MTX-1 Hardware Watchdog"
1644 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1646 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1647 will reboot the machine after a 100 seconds timer expired.
1650 tristate "PNX833x Hardware Watchdog"
1651 depends on SOC_PNX8335
1654 Hardware driver for the PNX833x's watchdog. This is a
1655 watchdog timer that will reboot the machine after a programmable
1656 timer has expired and no process has written to /dev/watchdog during
1660 tristate "Sibyte SoC hardware watchdog"
1661 depends on CPU_SB1 || (MIPS && COMPILE_TEST)
1663 Watchdog driver for the built in watchdog hardware in Sibyte
1664 SoC processors. There are apparently two watchdog timers
1665 on such processors; this driver supports only the first one,
1666 because currently Linux only supports exporting one watchdog
1669 To compile this driver as a loadable module, choose M here.
1670 The module will be called sb_wdog.
1673 tristate "TI AR7 Watchdog Timer"
1674 depends on AR7 || (MIPS && COMPILE_TEST)
1676 Hardware driver for the TI AR7 Watchdog Timer.
1679 tristate "Toshiba TXx9 Watchdog Timer"
1680 depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
1681 select WATCHDOG_CORE
1683 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1686 tristate "Cavium OCTEON SOC family Watchdog Timer"
1687 depends on CAVIUM_OCTEON_SOC
1689 select WATCHDOG_CORE
1690 select EXPORT_UASM if OCTEON_WDT = m
1692 Hardware driver for OCTEON's on chip watchdog timer.
1693 Enables the watchdog for all cores running Linux. It
1694 installs a NMI handler and pokes the watchdog based on an
1695 interrupt. On first expiration of the watchdog, the
1696 interrupt handler pokes it. The second expiration causes an
1697 NMI that prints a message. The third expiration causes a
1700 When userspace has /dev/watchdog open, no poking is done
1701 from the first interrupt, it is then only poked when the
1705 tristate "Broadcom BCM63xx hardware watchdog"
1708 Watchdog driver for the built in watchdog hardware in Broadcom
1711 To compile this driver as a loadable module, choose M here.
1712 The module will be called bcm63xx_wdt.
1715 tristate "Broadcom BCM2835 hardware watchdog"
1716 depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1717 select WATCHDOG_CORE
1719 Watchdog driver for the built in watchdog hardware in Broadcom
1722 To compile this driver as a loadable module, choose M here.
1723 The module will be called bcm2835_wdt.
1726 tristate "BCM Kona Watchdog"
1727 depends on ARCH_BCM_MOBILE || COMPILE_TEST
1728 select WATCHDOG_CORE
1730 Support for the watchdog timer on the following Broadcom BCM281xx
1731 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1734 Say 'Y' or 'M' here to enable the driver. The module will be called
1737 config BCM_KONA_WDT_DEBUG
1738 bool "DEBUGFS support for BCM Kona Watchdog"
1739 depends on BCM_KONA_WDT
1741 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1742 access to the driver's internal data structures as well as watchdog
1743 timer hardware registres.
1745 If in doubt, say 'N'.
1748 tristate "BCM7038 Watchdog"
1749 select WATCHDOG_CORE
1750 depends on HAS_IOMEM
1751 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1753 Watchdog driver for the built-in hardware in Broadcom 7038 and
1754 later SoCs used in set-top boxes. BCM7038 was made public
1755 during the 2004 CES, and since then, many Broadcom chips use this
1756 watchdog block, including some cable modem chips.
1759 tristate "Imagination Technologies PDC Watchdog Timer"
1760 depends on HAS_IOMEM
1761 depends on MIPS || COMPILE_TEST
1762 select WATCHDOG_CORE
1764 Driver for Imagination Technologies PowerDown Controller
1767 To compile this driver as a loadable module, choose M here.
1768 The module will be called imgpdc_wdt.
1771 tristate "Lantiq SoC watchdog"
1773 select WATCHDOG_CORE
1775 Hardware driver for the Lantiq SoC Watchdog Timer.
1777 config LOONGSON1_WDT
1778 tristate "Loongson1 SoC hardware watchdog"
1779 depends on MACH_LOONGSON32
1780 select WATCHDOG_CORE
1782 Hardware driver for the Loongson1 SoC Watchdog Timer.
1785 tristate "Ralink SoC watchdog"
1786 select WATCHDOG_CORE
1789 Hardware driver for the Ralink SoC Watchdog Timer.
1792 tristate "Mediatek SoC watchdog"
1793 select WATCHDOG_CORE
1794 depends on SOC_MT7620 || SOC_MT7621
1796 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1799 tristate "Microchip PIC32 hardware watchdog"
1800 select WATCHDOG_CORE
1801 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1803 Watchdog driver for the built in watchdog hardware in a PIC32.
1805 Configuration bits must be set appropriately for the watchdog to be
1806 controlled by this driver.
1808 To compile this driver as a loadable module, choose M here.
1809 The module will be called pic32-wdt.
1812 tristate "Microchip PIC32 Deadman Timer"
1813 select WATCHDOG_CORE
1814 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1816 Watchdog driver for PIC32 instruction fetch counting timer. This specific
1817 timer is typically be used in misson critical and safety critical
1818 applications, where any single failure of the software functionality
1819 and sequencing must be detected.
1821 To compile this driver as a loadable module, choose M here.
1822 The module will be called pic32-dmt.
1824 # PARISC Architecture
1826 # POWERPC Architecture
1829 tristate "GE Watchdog Timer"
1832 Watchdog timer found in a number of GE single board computers.
1835 bool "MPC52xx Watchdog Timer"
1836 depends on PPC_MPC52xx || COMPILE_TEST
1838 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1841 tristate "MPC8xxx Platform Watchdog Timer"
1842 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1843 select WATCHDOG_CORE
1845 This driver is for a SoC level watchdog that exists on some
1846 Freescale PowerPC processors. So far this driver supports:
1851 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1854 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1855 depends on MV64X60 || COMPILE_TEST
1858 tristate "PIKA FPGA Watchdog"
1859 depends on WARP || (PPC64 && COMPILE_TEST)
1862 This enables the watchdog in the PIKA FPGA. Currently used on
1866 tristate "PowerPC Book-E Watchdog Timer"
1867 depends on BOOKE || 4xx
1868 select WATCHDOG_CORE
1870 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1871 MPC85xx SOCs and the IBM PowerPC 440.
1873 Please see Documentation/watchdog/watchdog-api.txt for
1876 config BOOKE_WDT_DEFAULT_TIMEOUT
1877 int "PowerPC Book-E Watchdog Timer Default Timeout"
1878 depends on BOOKE_WDT
1879 default 38 if PPC_FSL_BOOK3E
1880 range 0 63 if PPC_FSL_BOOK3E
1881 default 3 if !PPC_FSL_BOOK3E
1882 range 0 3 if !PPC_FSL_BOOK3E
1884 Select the default watchdog timer period to be used by the PowerPC
1885 Book-E watchdog driver. A watchdog "event" occurs when the bit
1886 position represented by this number transitions from zero to one.
1888 For Freescale Book-E processors, this is a number between 0 and 63.
1889 For other Book-E processors, this is a number between 0 and 3.
1891 The value can be overridden by the wdt_period command-line parameter.
1894 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1895 select WATCHDOG_CORE
1896 depends on GPIOLIB || COMPILE_TEST
1898 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1900 The driver can also be built as a module. If so, the module will be
1903 If unsure select N here.
1905 # PPC64 Architecture
1907 config WATCHDOG_RTAS
1908 tristate "RTAS watchdog"
1911 This driver adds watchdog support for the RTAS watchdog.
1913 To compile this driver as a module, choose M here. The module
1914 will be called wdrtas.
1918 config DIAG288_WATCHDOG
1919 tristate "System z diag288 Watchdog"
1921 select WATCHDOG_CORE
1923 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1924 provide a virtual watchdog timer to their guest that cause a
1925 user define Control Program command to be executed after a
1927 LPAR provides a very similar interface. This driver handles
1930 To compile this driver as a module, choose M here. The module
1931 will be called diag288_wdt.
1933 # SUPERH (sh + sh64) Architecture
1936 tristate "SuperH Watchdog"
1937 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1938 select WATCHDOG_CORE
1940 This driver adds watchdog support for the integrated watchdog in the
1941 SuperH processors. If you have one of these processors and wish
1942 to have watchdog support enabled, say Y, otherwise say N.
1944 As a side note, saying Y here will automatically boost HZ to 1000
1945 so that the timer has a chance to clear the overflow counter. On
1946 slower systems (such as the SH-2 and SH-3) this will likely yield
1947 some performance issues. As such, the WDT should be avoided here
1948 unless it is absolutely necessary.
1950 To compile this driver as a module, choose M here: the
1951 module will be called shwdt.
1953 # SPARC Architecture
1955 # SPARC64 Architecture
1957 config WATCHDOG_CP1XXX
1958 tristate "CP1XXX Hardware Watchdog support"
1959 depends on SPARC64 && PCI
1961 This is the driver for the hardware watchdog timers present on
1962 Sun Microsystems CompactPCI models CP1400 and CP1500.
1964 To compile this driver as a module, choose M here: the
1965 module will be called cpwatchdog.
1967 If you do not have a CompactPCI model CP1400 or CP1500, or
1968 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1969 you should say N to this option.
1972 tristate "RIO Hardware Watchdog support"
1973 depends on SPARC64 && PCI
1975 Say Y here to support the hardware watchdog capability on Sun RIO
1976 machines. The watchdog timeout period is normally one minute but
1977 can be changed with a boot-time parameter.
1979 config WATCHDOG_SUN4V
1980 tristate "Sun4v Watchdog support"
1981 select WATCHDOG_CORE
1984 Say Y here to support the hypervisor watchdog capability embedded
1985 in the SPARC sun4v architecture.
1987 To compile this driver as a module, choose M here. The module will
1988 be called sun4v_wdt.
1990 # XTENSA Architecture
1995 tristate "Xen Watchdog support"
1997 select WATCHDOG_CORE
1999 Say Y here to support the hypervisor watchdog capability provided
2000 by Xen 4.0 and newer. The watchdog timeout period is normally one
2001 minute but can be changed with a boot-time parameter.
2004 tristate "UML watchdog"
2005 depends on UML || COMPILE_TEST
2008 # ISA-based Watchdog Cards
2011 comment "ISA-based Watchdog Cards"
2015 tristate "Berkshire Products ISA-PC Watchdog"
2018 This is the driver for the Berkshire Products ISA-PC Watchdog card.
2019 This card simply watches your kernel to make sure it doesn't freeze,
2020 and if it does, it reboots your computer after a certain amount of
2021 time. This driver is like the WDT501 driver but for different
2022 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
2023 watchdog cards can be ordered from <http://www.berkprod.com/>.
2025 To compile this driver as a module, choose M here: the
2026 module will be called pcwd.
2028 Most people will say N.
2031 tristate "Mixcom Watchdog"
2034 This is a driver for the Mixcom hardware watchdog cards. This
2035 watchdog simply watches your kernel to make sure it doesn't freeze,
2036 and if it does, it reboots your computer after a certain amount of
2039 To compile this driver as a module, choose M here: the
2040 module will be called mixcomwd.
2042 Most people will say N.
2045 tristate "WDT Watchdog timer"
2048 If you have a WDT500P or WDT501P watchdog board, say Y here,
2049 otherwise N. It is not possible to probe for this board, which means
2050 that you have to inform the kernel about the IO port and IRQ that
2051 is needed (you can do this via the io and irq parameters)
2053 To compile this driver as a module, choose M here: the
2054 module will be called wdt.
2057 # PCI-based Watchdog Cards
2060 comment "PCI-based Watchdog Cards"
2063 config PCIPCWATCHDOG
2064 tristate "Berkshire Products PCI-PC Watchdog"
2067 This is the driver for the Berkshire Products PCI-PC Watchdog card.
2068 This card simply watches your kernel to make sure it doesn't freeze,
2069 and if it does, it reboots your computer after a certain amount of
2070 time. The card can also monitor the internal temperature of the PC.
2071 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2073 To compile this driver as a module, choose M here: the
2074 module will be called pcwd_pci.
2076 Most people will say N.
2079 tristate "PCI-WDT500/501 Watchdog timer"
2082 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2084 If you have a PCI-WDT501 watchdog board then you can enable the
2085 temperature sensor by setting the type parameter to 501.
2087 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2088 can do this via the tachometer parameter. Only do this if you have a
2089 fan tachometer actually set up.
2091 To compile this driver as a module, choose M here: the
2092 module will be called wdt_pci.
2095 # USB-based Watchdog Cards
2098 comment "USB-based Watchdog Cards"
2101 config USBPCWATCHDOG
2102 tristate "Berkshire Products USB-PC Watchdog"
2105 This is the driver for the Berkshire Products USB-PC Watchdog card.
2106 This card simply watches your kernel to make sure it doesn't freeze,
2107 and if it does, it reboots your computer after a certain amount of
2108 time. The card can also monitor the internal temperature of the PC.
2109 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2111 To compile this driver as a module, choose M here: the
2112 module will be called pcwd_usb.
2114 Most people will say N.