3 # Watchdog device configuration
7 bool "Watchdog Timer Support"
9 If you say Y here (and to one of the following options) and create a
10 character special file /dev/watchdog with major number 10 and minor
11 number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:
12 subsequently opening the file and then failing to write to it for
13 longer than 1 minute will result in rebooting the machine. This
14 could be useful for a networked machine that needs to come back
15 on-line as fast as possible after a lock-up. There's both a watchdog
16 implementation entirely in software (which can sometimes fail to
17 reboot the machine) and a driver for hardware watchdog boards, which
18 are more robust and can also keep track of the temperature inside
19 your computer. For details, read
20 <file:Documentation/watchdog/watchdog-api.txt> in the kernel source.
22 The watchdog is usually used together with the watchdog daemon
23 which is available from
24 <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can
25 also monitor NFS connections and can reboot the machine when the process
33 tristate "WatchDog Timer Driver Core"
35 Say Y here if you want to use the new watchdog timer driver core.
36 This driver provides a framework for all watchdog timer drivers
37 and gives them the /dev/watchdog interface (and later also the
40 config WATCHDOG_NOWAYOUT
41 bool "Disable watchdog shutdown on close"
43 The default watchdog behaviour (which you get if you say N here) is
44 to stop the timer if the process managing it closes the file
45 /dev/watchdog. It's always remotely possible that this process might
46 get killed. If you say Y here, the watchdog cannot be stopped once
49 config WATCHDOG_HANDLE_BOOT_ENABLED
50 bool "Update boot-enabled watchdog until userspace takes over"
53 The default watchdog behaviour (which you get if you say Y here) is
54 to ping watchdog devices that were enabled before the driver has
55 been loaded until control is taken over from userspace using the
56 /dev/watchdog file. If you say N here, the kernel will not update
57 the watchdog on its own. Thus if your userspace does not start fast
58 enough your device will reboot.
61 bool "Read different watchdog information through sysfs"
63 Say Y here if you want to enable watchdog device status read through
66 comment "Watchdog Pretimeout Governors"
68 config WATCHDOG_PRETIMEOUT_GOV
69 bool "Enable watchdog pretimeout governors"
70 depends on WATCHDOG_CORE
72 The option allows to select watchdog pretimeout governors.
74 config WATCHDOG_PRETIMEOUT_GOV_SEL
76 depends on WATCHDOG_PRETIMEOUT_GOV
78 select WATCHDOG_PRETIMEOUT_GOV_PANIC if WATCHDOG_PRETIMEOUT_GOV_NOOP=n
80 if WATCHDOG_PRETIMEOUT_GOV
82 config WATCHDOG_PRETIMEOUT_GOV_NOOP
83 tristate "Noop watchdog pretimeout governor"
84 depends on WATCHDOG_CORE
87 Noop watchdog pretimeout governor, only an informational
88 message is added to kernel log buffer.
90 config WATCHDOG_PRETIMEOUT_GOV_PANIC
91 tristate "Panic watchdog pretimeout governor"
92 depends on WATCHDOG_CORE
95 Panic watchdog pretimeout governor, on watchdog pretimeout
96 event put the kernel into panic.
99 prompt "Default Watchdog Pretimeout Governor"
100 default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
102 This option selects a default watchdog pretimeout governor.
103 The governor takes its action, if a watchdog is capable
104 to report a pretimeout event.
106 config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP
108 depends on WATCHDOG_PRETIMEOUT_GOV_NOOP
110 Use noop watchdog pretimeout governor by default. If noop
111 governor is selected by a user, write a short message to
112 the kernel log buffer and don't do any system changes.
114 config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
116 depends on WATCHDOG_PRETIMEOUT_GOV_PANIC
118 Use panic watchdog pretimeout governor by default, if
119 a watchdog pretimeout event happens, consider that
120 a watchdog feeder is dead and reboot is unavoidable.
124 endif # WATCHDOG_PRETIMEOUT_GOV
127 # General Watchdog drivers
130 comment "Watchdog Device Drivers"
132 # Architecture Independent
135 tristate "Software watchdog"
138 A software monitoring watchdog. This will fail to reboot your system
139 from some situations that the hardware watchdog will recover
140 from. Equally it's a lot cheaper to install.
142 To compile this driver as a module, choose M here: the
143 module will be called softdog.
145 config SOFT_WATCHDOG_PRETIMEOUT
146 bool "Software watchdog pretimeout governor support"
147 depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV
149 Enable this if you want to use pretimeout governors with the software
150 watchdog. Be aware that governors might affect the watchdog because it
151 is purely software, e.g. the panic governor will stall it!
153 config BD70528_WATCHDOG
154 tristate "ROHM BD70528 PMIC Watchdog"
155 depends on MFD_ROHM_BD70528
158 Support for the watchdog in the ROHM BD70528 PMIC. Watchdog trigger
161 Say Y here to include support for the ROHM BD70528 watchdog.
162 Alternatively say M to compile the driver as a module,
163 which will be called bd70528_wdt.
165 config DA9052_WATCHDOG
166 tristate "Dialog DA9052 Watchdog"
167 depends on PMIC_DA9052 || COMPILE_TEST
170 Support for the watchdog in the DA9052 PMIC. Watchdog trigger
173 Say Y here to include support for the DA9052 watchdog.
174 Alternatively say M to compile the driver as a module,
175 which will be called da9052_wdt.
177 config DA9055_WATCHDOG
178 tristate "Dialog Semiconductor DA9055 Watchdog"
179 depends on MFD_DA9055 || COMPILE_TEST
182 If you say yes here you get support for watchdog on the Dialog
183 Semiconductor DA9055 PMIC.
185 This driver can also be built as a module. If so, the module
186 will be called da9055_wdt.
188 config DA9063_WATCHDOG
189 tristate "Dialog DA9063 Watchdog"
190 depends on MFD_DA9063 || COMPILE_TEST
193 Support for the watchdog in the DA9063 PMIC.
195 This driver can be built as a module. The module name is da9063_wdt.
197 config DA9062_WATCHDOG
198 tristate "Dialog DA9062/61 Watchdog"
199 depends on MFD_DA9062 || COMPILE_TEST
202 Support for the watchdog in the DA9062 and DA9061 PMICs.
204 This driver can be built as a module. The module name is da9062_wdt.
207 tristate "Watchdog device controlled through GPIO-line"
211 If you say yes here you get support for watchdog device
212 controlled through GPIO-line.
214 config GPIO_WATCHDOG_ARCH_INITCALL
215 bool "Register the watchdog as early as possible"
216 depends on GPIO_WATCHDOG=y
218 In some situations, the default initcall level (module_init)
219 in not early enough in the boot process to avoid the watchdog
221 If you say yes here, the initcall level would be raised to
225 config MENF21BMC_WATCHDOG
226 tristate "MEN 14F021P00 BMC Watchdog"
227 depends on MFD_MENF21BMC || COMPILE_TEST
231 Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
233 This driver can also be built as a module. If so the module
234 will be called menf21bmc_wdt.
236 config MENZ069_WATCHDOG
237 tristate "MEN 16Z069 Watchdog"
241 Say Y here to include support for the MEN 16Z069 Watchdog.
243 This driver can also be built as a module. If so the module
244 will be called menz069_wdt.
246 config TANGOX_WATCHDOG
247 tristate "Sigma Designs SMP86xx/SMP87xx watchdog"
249 depends on ARCH_TANGO || COMPILE_TEST
252 Support for the watchdog in Sigma Designs SMP86xx (tango3)
253 and SMP87xx (tango4) family chips.
255 This driver can be built as a module. The module name is tangox_wdt.
258 tristate "ACPI Watchdog Action Table (WDAT)"
263 This driver adds support for systems with ACPI Watchdog Action
264 Table (WDAT) table. Servers typically have this but it can be
265 found on some desktop machines as well. This driver will take
266 over the native iTCO watchdog driver found on many Intel CPUs.
268 To compile this driver as module, choose M here: the module will
271 config WM831X_WATCHDOG
272 tristate "WM831x watchdog"
273 depends on MFD_WM831X
276 Support for the watchdog in the WM831x AudioPlus PMICs. When
277 the watchdog triggers the system will be reset.
279 config WM8350_WATCHDOG
280 tristate "WM8350 watchdog"
281 depends on MFD_WM8350
284 Support for the watchdog in the WM8350 AudioPlus PMIC. When
285 the watchdog triggers the system will be reset.
287 config XILINX_WATCHDOG
288 tristate "Xilinx Watchdog timer"
292 Watchdog driver for the xps_timebase_wdt ip core.
294 To compile this driver as a module, choose M here: the
295 module will be called of_xilinx_wdt.
297 config ZIIRAVE_WATCHDOG
298 tristate "Zodiac RAVE Watchdog Timer"
302 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
305 To compile this driver as a module, choose M here: the
306 module will be called ziirave_wdt.
308 config RAVE_SP_WATCHDOG
309 tristate "RAVE SP Watchdog timer"
310 depends on RAVE_SP_CORE
311 depends on NVMEM || !NVMEM
314 Support for the watchdog on RAVE SP device.
317 tristate "Mellanox Watchdog"
318 depends on MELLANOX_PLATFORM
322 This is the driver for the hardware watchdog on Mellanox systems.
323 If you are going to use it, say Y here, otherwise N.
324 This driver can be used together with the watchdog daemon.
325 It can also watch your kernel to make sure it doesn't freeze,
326 and if it does, it reboots your system after a certain amount of
329 To compile this driver as a module, choose M here: the
330 module will be called mlx-wdt.
336 config ARM_SP805_WATCHDOG
337 tristate "ARM SP805 Watchdog"
338 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
341 ARM Primecell SP805 Watchdog timer. This will reboot your system when
342 the timeout is reached.
344 config ARM_SBSA_WATCHDOG
345 tristate "ARM SBSA Generic Watchdog"
347 depends on ARM_ARCH_TIMER
350 ARM SBSA Generic Watchdog has two stage timeouts:
351 the first signal (WS0) is for alerting the system by interrupt,
352 the second one (WS1) is a real hardware reset.
353 More details: ARM DEN0029B - Server Base System Architecture (SBSA)
355 This driver can operate ARM SBSA Generic Watchdog as a single stage
356 or a two stages watchdog, it depends on the module parameter "action".
358 Note: the maximum timeout in the two stages mode is half of that in
359 the single stage mode.
361 To compile this driver as module, choose M here: The module
362 will be called sbsa_gwdt.
364 config ARMADA_37XX_WATCHDOG
365 tristate "Armada 37xx watchdog"
366 depends on ARCH_MVEBU || COMPILE_TEST
370 Say Y here to include support for the watchdog timer found on
371 Marvell Armada 37xx SoCs.
372 To compile this driver as a module, choose M here: the
373 module will be called armada_37xx_wdt.
375 config ASM9260_WATCHDOG
376 tristate "Alphascale ASM9260 watchdog"
377 depends on MACH_ASM9260 || COMPILE_TEST
380 select RESET_CONTROLLER
382 Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your
383 system when the timeout is reached.
385 config AT91RM9200_WATCHDOG
386 tristate "AT91RM9200 watchdog"
387 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
389 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
390 system when the timeout is reached.
392 config AT91SAM9X_WATCHDOG
393 tristate "AT91SAM9X / AT91CAP9 watchdog"
394 depends on ARCH_AT91 || COMPILE_TEST
397 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
398 reboot your system when the timeout is reached.
400 config SAMA5D4_WATCHDOG
401 tristate "Atmel SAMA5D4 Watchdog Timer"
402 depends on ARCH_AT91 || COMPILE_TEST
405 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
406 Its Watchdog Timer Mode Register can be written more than once.
407 This will reboot your system when the timeout is reached.
409 config CADENCE_WATCHDOG
410 tristate "Cadence Watchdog Timer"
414 Say Y here if you want to include support for the watchdog
415 timer in the Xilinx Zynq.
417 config 21285_WATCHDOG
418 tristate "DC21285 watchdog"
419 depends on FOOTBRIDGE
421 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
422 here if you wish to use this. Alternatively say M to compile the
423 driver as a module, which will be called wdt285.
425 This driver does not work on all machines. In particular, early CATS
426 boards have hardware problems that will cause the machine to simply
427 lock up if the watchdog fires.
429 "If in doubt, leave it out" - say N.
432 tristate "NetWinder WB83C977 watchdog"
433 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
435 Say Y here to include support for the WB977 watchdog included in
436 NetWinder machines. Alternatively say M to compile the driver as
437 a module, which will be called wdt977.
439 Not sure? It's safe to say N.
441 config FTWDT010_WATCHDOG
442 tristate "Faraday Technology FTWDT010 watchdog"
443 depends on ARM || COMPILE_TEST
447 Say Y here if to include support for the Faraday Technology
448 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
451 To compile this driver as a module, choose M here: the
452 module will be called ftwdt010_wdt.
454 config IXP4XX_WATCHDOG
455 tristate "IXP4xx Watchdog"
456 depends on ARCH_IXP4XX
458 Say Y here if to include support for the watchdog timer
459 in the Intel IXP4xx network processors. This driver can
460 be built as a module by choosing M. The module will
461 be called ixp4xx_wdt.
463 Note: The internal IXP4xx watchdog does a soft CPU reset
464 which doesn't reset any peripherals. There are circumstances
465 where the watchdog will fail to reset the board correctly
466 (e.g., if the boot ROM is in an unreadable state).
468 Say N if you are unsure.
470 config KS8695_WATCHDOG
471 tristate "KS8695 watchdog"
472 depends on ARCH_KS8695
474 Watchdog timer embedded into KS8695 processor. This will reboot your
475 system when the timeout is reached.
477 config HAVE_S3C2410_WATCHDOG
480 This will include watchdog timer support for Samsung SoCs. If
481 you want to include watchdog support for any machine, kindly
482 select this in the respective mach-XXXX/Kconfig file.
484 config S3C2410_WATCHDOG
485 tristate "S3C2410 Watchdog"
486 depends on HAVE_S3C2410_WATCHDOG || COMPILE_TEST
488 select MFD_SYSCON if ARCH_EXYNOS
490 Watchdog timer block in the Samsung SoCs. This will reboot
491 the system when the timer expires with the watchdog enabled.
493 The driver is limited by the speed of the system's PCLK
494 signal, so with reasonably fast systems (PCLK around 50-66MHz)
495 then watchdog intervals of over approximately 20seconds are
498 The driver can be built as a module by choosing M, and will
499 be called s3c2410_wdt
501 config SA1100_WATCHDOG
502 tristate "SA1100/PXA2xx watchdog"
503 depends on ARCH_SA1100 || ARCH_PXA
505 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
506 reboot your system when timeout is reached.
508 NOTE: once enabled, this timer cannot be disabled.
510 To compile this driver as a module, choose M here: the
511 module will be called sa1100_wdt.
514 tristate "Synopsys DesignWare watchdog"
518 Say Y here if to include support for the Synopsys DesignWare
519 watchdog timer found in many chips.
520 To compile this driver as a module, choose M here: the
521 module will be called dw_wdt.
523 config EP93XX_WATCHDOG
524 tristate "EP93xx Watchdog"
525 depends on ARCH_EP93XX || COMPILE_TEST
528 Say Y here if to include support for the watchdog timer
529 embedded in the Cirrus Logic EP93xx family of devices.
531 To compile this driver as a module, choose M here: the
532 module will be called ep93xx_wdt.
535 tristate "OMAP Watchdog"
536 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
539 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
540 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
542 config PNX4008_WATCHDOG
543 tristate "LPC32XX Watchdog"
544 depends on ARCH_LPC32XX
547 Say Y here if to include support for the watchdog timer
548 in the LPC32XX processor.
549 This driver can be built as a module by choosing M. The module
550 will be called pnx4008_wdt.
552 Say N if you are unsure.
555 tristate "IOP Watchdog"
556 depends on ARCH_IOP13XX
557 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
559 Say Y here if to include support for the watchdog timer
560 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
561 be built as a module by choosing M. The module will
564 Note: The IOP13XX watchdog does an Internal Bus Reset which will
565 affect both cores and the peripherals of the IOP. The ATU-X
566 and/or ATUe configuration registers will remain intact, but if
567 operating as an Root Complex and/or Central Resource, the PCI-X
568 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
570 config DAVINCI_WATCHDOG
571 tristate "DaVinci watchdog"
572 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
575 Say Y here if to include support for the watchdog timer
576 in the DaVinci DM644x/DM646x or Keystone processors.
577 To compile this driver as a module, choose M here: the
578 module will be called davinci_wdt.
580 NOTE: once enabled, this timer cannot be disabled.
581 Say N if you are unsure.
583 config ORION_WATCHDOG
584 tristate "Orion watchdog"
585 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || (COMPILE_TEST && !ARCH_EBSA110)
589 Say Y here if to include support for the watchdog timer
590 in the Marvell Orion5x and Kirkwood ARM SoCs.
591 To compile this driver as a module, choose M here: the
592 module will be called orion_wdt.
594 config RN5T618_WATCHDOG
595 tristate "Ricoh RN5T618 watchdog"
596 depends on MFD_RN5T618 || COMPILE_TEST
599 If you say yes here you get support for watchdog on the Ricoh
602 This driver can also be built as a module. If so, the module
603 will be called rn5t618_wdt.
605 config SUNXI_WATCHDOG
606 tristate "Allwinner SoCs watchdog support"
607 depends on ARCH_SUNXI || COMPILE_TEST
610 Say Y here to include support for the watchdog timer
612 To compile this driver as a module, choose M here: the
613 module will be called sunxi_wdt.
615 config COH901327_WATCHDOG
616 bool "ST-Ericsson COH 901 327 watchdog"
617 depends on ARCH_U300 || (ARM && COMPILE_TEST)
618 default y if MACH_U300
621 Say Y here to include Watchdog timer support for the
622 watchdog embedded into the ST-Ericsson U300 series platforms.
623 This watchdog is used to reset the system and thus cannot be
624 compiled as a module.
626 config NPCM7XX_WATCHDOG
627 tristate "Nuvoton NPCM750 watchdog"
628 depends on ARCH_NPCM || COMPILE_TEST
629 default y if ARCH_NPCM7XX
632 Say Y here to include Watchdog timer support for the
633 watchdog embedded into the NPCM7xx.
634 This watchdog is used to reset the system and thus cannot be
635 compiled as a module.
637 config TWL4030_WATCHDOG
638 tristate "TWL4030 Watchdog"
639 depends on TWL4030_CORE
642 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
643 watchdog timer support for TWL4030 chips.
645 config STMP3XXX_RTC_WATCHDOG
646 tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
647 depends on RTC_DRV_STMP || COMPILE_TEST
650 Say Y here to include support for the watchdog timer inside
651 the RTC for the STMP37XX/378X or i.MX23/28 SoC.
652 To compile this driver as a module, choose M here: the
653 module will be called stmp3xxx_rtc_wdt.
655 config NUC900_WATCHDOG
656 tristate "Nuvoton NUC900 watchdog"
657 depends on ARCH_W90X900 || COMPILE_TEST
659 Say Y here if to include support for the watchdog timer
660 for the Nuvoton NUC900 series SoCs.
661 To compile this driver as a module, choose M here: the
662 module will be called nuc900_wdt.
664 config TS4800_WATCHDOG
665 tristate "TS-4800 Watchdog"
666 depends on HAS_IOMEM && OF
667 depends on SOC_IMX51 || COMPILE_TEST
671 Technologic Systems TS-4800 has watchdog timer implemented in
672 an external FPGA. Say Y here if you want to support for the
673 watchdog timer on TS-4800 board.
675 config TS72XX_WATCHDOG
676 tristate "TS-72XX SBC Watchdog"
677 depends on MACH_TS72XX || COMPILE_TEST
679 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
680 watchdog timer implemented in a external CPLD chip. Say Y here
681 if you want to support for the watchdog timer on TS-72XX boards.
683 To compile this driver as a module, choose M here: the
684 module will be called ts72xx_wdt.
686 config MAX63XX_WATCHDOG
687 tristate "Max63xx watchdog"
691 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
693 config MAX77620_WATCHDOG
694 tristate "Maxim Max77620 Watchdog Timer"
695 depends on MFD_MAX77620 || COMPILE_TEST
697 This is the driver for the Max77620 watchdog timer.
698 Say 'Y' here to enable the watchdog timer support for
699 MAX77620 chips. To compile this driver as a module,
700 choose M here: the module will be called max77620_wdt.
703 tristate "IMX2+ Watchdog"
704 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
708 This is the driver for the hardware watchdog
709 on the Freescale IMX2 and later processors.
710 If you have one of these processors and wish to have
711 watchdog support enabled, say Y, otherwise say N.
713 To compile this driver as a module, choose M here: the
714 module will be called imx2_wdt.
717 tristate "IMX SC Watchdog"
718 depends on HAVE_ARM_SMCCC
721 This is the driver for the system controller watchdog
722 on the NXP i.MX SoCs with system controller inside, the
723 watchdog driver will call ARM SMC API and trap into
724 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
725 will request system controller to execute the operations.
726 If you have one of these processors and wish to have
727 watchdog support enabled, say Y, otherwise say N.
729 To compile this driver as a module, choose M here: the
730 module will be called imx_sc_wdt.
732 config UX500_WATCHDOG
733 tristate "ST-Ericsson Ux500 watchdog"
734 depends on MFD_DB8500_PRCMU
738 Say Y here to include Watchdog timer support for the watchdog
739 existing in the prcmu of ST-Ericsson Ux500 series platforms.
741 To compile this driver as a module, choose M here: the
742 module will be called ux500_wdt.
745 tristate "Retu watchdog"
749 Retu watchdog driver for Nokia Internet Tablets (770, N800,
750 N810). At least on N800 the watchdog cannot be disabled, so
751 this driver is essential and you should enable it.
753 To compile this driver as a module, choose M here: the
754 module will be called retu_wdt.
757 tristate "MOXART watchdog"
758 depends on ARCH_MOXART || COMPILE_TEST
760 Say Y here to include Watchdog timer support for the watchdog
761 existing on the MOXA ART SoC series platforms.
763 To compile this driver as a module, choose M here: the
764 module will be called moxart_wdt.
766 config SIRFSOC_WATCHDOG
767 tristate "SiRFSOC watchdog"
768 depends on ARCH_SIRF || COMPILE_TEST
772 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
773 the watchdog triggers the system will be reset.
775 config ST_LPC_WATCHDOG
776 tristate "STMicroelectronics LPC Watchdog"
777 depends on ARCH_STI || COMPILE_TEST
781 Say Y here to include STMicroelectronics Low Power Controller
782 (LPC) based Watchdog timer support.
784 To compile this driver as a module, choose M here: the
785 module will be called st_lpc_wdt.
787 config TEGRA_WATCHDOG
788 tristate "Tegra watchdog"
789 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
792 Say Y here to include support for the watchdog timer
793 embedded in NVIDIA Tegra SoCs.
795 To compile this driver as a module, choose M here: the
796 module will be called tegra_wdt.
799 tristate "QCOM watchdog"
801 depends on ARCH_QCOM || COMPILE_TEST
804 Say Y here to include Watchdog timer support for the watchdog found
805 on QCOM chipsets. Currently supported targets are the MSM8960,
806 APQ8064, and IPQ8064.
808 To compile this driver as a module, choose M here: the
809 module will be called qcom_wdt.
811 config MESON_GXBB_WATCHDOG
812 tristate "Amlogic Meson GXBB SoCs watchdog support"
813 depends on ARCH_MESON || COMPILE_TEST
816 Say Y here to include support for the watchdog timer
817 in Amlogic Meson GXBB SoCs.
818 To compile this driver as a module, choose M here: the
819 module will be called meson_gxbb_wdt.
821 config MESON_WATCHDOG
822 tristate "Amlogic Meson SoCs watchdog support"
823 depends on ARCH_MESON || COMPILE_TEST
826 Say Y here to include support for the watchdog timer
827 in Amlogic Meson SoCs.
828 To compile this driver as a module, choose M here: the
829 module will be called meson_wdt.
831 config MEDIATEK_WATCHDOG
832 tristate "Mediatek SoCs watchdog support"
833 depends on ARCH_MEDIATEK || COMPILE_TEST
836 Say Y here to include support for the watchdog timer
838 To compile this driver as a module, choose M here: the
839 module will be called mtk_wdt.
841 config DIGICOLOR_WATCHDOG
842 tristate "Conexant Digicolor SoCs watchdog support"
843 depends on ARCH_DIGICOLOR || COMPILE_TEST
846 Say Y here to include support for the watchdog timer
847 in Conexant Digicolor SoCs.
848 To compile this driver as a module, choose M here: the
849 module will be called digicolor_wdt.
851 config LPC18XX_WATCHDOG
852 tristate "LPC18xx/43xx Watchdog"
853 depends on ARCH_LPC18XX || COMPILE_TEST
857 Say Y here if to include support for the watchdog timer
858 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
860 To compile this driver as a module, choose M here: the
861 module will be called lpc18xx_wdt.
863 config ATLAS7_WATCHDOG
864 tristate "CSRatlas7 watchdog"
865 depends on ARCH_ATLAS7 || COMPILE_TEST
867 Say Y here to include Watchdog timer support for the watchdog
868 existing on the CSRatlas7 series platforms.
870 To compile this driver as a module, choose M here: the
871 module will be called atlas7_wdt.
874 tristate "Renesas WDT Watchdog"
875 depends on ARCH_RENESAS || COMPILE_TEST
878 This driver adds watchdog support for the integrated watchdogs in the
879 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
881 config RENESAS_RZAWDT
882 tristate "Renesas RZ/A WDT Watchdog"
883 depends on ARCH_RENESAS || COMPILE_TEST
886 This driver adds watchdog support for the integrated watchdogs in the
887 Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
889 config ASPEED_WATCHDOG
890 tristate "Aspeed BMC watchdog support"
891 depends on ARCH_ASPEED || COMPILE_TEST
894 Say Y here to include support for the watchdog timer
897 This driver is required to reboot the SoC.
899 To compile this driver as a module, choose M here: the
900 module will be called aspeed_wdt.
902 config ZX2967_WATCHDOG
903 tristate "ZTE zx2967 SoCs watchdog support"
907 Say Y here to include support for the watchdog timer
909 To compile this driver as a module, choose M here: the
910 module will be called zx2967_wdt.
912 config STM32_WATCHDOG
913 tristate "STM32 Independent WatchDoG (IWDG) support"
914 depends on ARCH_STM32
918 Say Y here to include support for the watchdog timer
921 To compile this driver as a module, choose M here: the
922 module will be called stm32_iwdg.
924 config STPMIC1_WATCHDOG
925 tristate "STPMIC1 PMIC watchdog support"
926 depends on MFD_STPMIC1
929 Say Y here to include watchdog support embedded into STPMIC1 PMIC.
930 If the watchdog timer expires, stpmic1 will shut down all its power
933 To compile this driver as a module, choose M here: the
934 module will be called spmic1_wdt.
936 config UNIPHIER_WATCHDOG
937 tristate "UniPhier watchdog support"
938 depends on ARCH_UNIPHIER || COMPILE_TEST
939 depends on OF && MFD_SYSCON
942 Say Y here to include support watchdog timer embedded
943 into the UniPhier system.
945 To compile this driver as a module, choose M here: the
946 module will be called uniphier_wdt.
948 config RTD119X_WATCHDOG
949 bool "Realtek RTD119x/RTD129x watchdog support"
950 depends on ARCH_REALTEK || COMPILE_TEST
955 Say Y here to include support for the watchdog timer in
956 Realtek RTD1295 SoCs.
959 tristate "Spreadtrum watchdog support"
960 depends on ARCH_SPRD || COMPILE_TEST
963 Say Y here to include watchdog timer supported
964 by Spreadtrum system.
966 config PM8916_WATCHDOG
967 tristate "QCOM PM8916 pmic watchdog"
968 depends on OF && MFD_SPMI_PMIC
971 Say Y here to include support watchdog timer embedded into the
974 # X86 (i386 + ia64 + x86_64) Architecture
977 tristate "Acquire SBC Watchdog Timer"
980 This is the driver for the hardware watchdog on Single Board
981 Computers produced by Acquire Inc (and others). This watchdog
982 simply watches your kernel to make sure it doesn't freeze, and if
983 it does, it reboots your computer after a certain amount of time.
985 To compile this driver as a module, choose M here: the
986 module will be called acquirewdt.
988 Most people will say N.
991 tristate "Advantech SBC Watchdog Timer"
994 If you are configuring a Linux kernel for the Advantech single-board
995 computer, say `Y' here to support its built-in watchdog timer
996 feature. More information can be found at
997 <http://www.advantech.com.tw/products/>
1000 tristate "ALi M1535 PMU Watchdog Timer"
1001 depends on X86 && PCI
1003 This is the driver for the hardware watchdog on the ALi M1535 PMU.
1005 To compile this driver as a module, choose M here: the
1006 module will be called alim1535_wdt.
1008 Most people will say N.
1011 tristate "ALi M7101 PMU Computer Watchdog"
1014 This is the driver for the hardware watchdog on the ALi M7101 PMU
1015 as used in the x86 Cobalt servers and also found in some
1016 SPARC Netra servers too.
1018 To compile this driver as a module, choose M here: the
1019 module will be called alim7101_wdt.
1021 Most people will say N.
1024 tristate "WinSystems EBC-C384 Watchdog Timer"
1027 select WATCHDOG_CORE
1029 Enables watchdog timer support for the watchdog timer on the
1030 WinSystems EBC-C384 motherboard. The timeout may be configured via
1031 the timeout module parameter.
1034 tristate "Fintek F718xx, F818xx Super I/O Watchdog"
1037 This is the driver for the hardware watchdog on the Fintek F71808E,
1038 F71862FG, F71868, F71869, F71882FG, F71889FG, F81865 and F81866
1039 Super I/O controllers.
1041 You can compile this driver directly into the kernel, or use
1042 it as a module. The module will be called f71808e_wdt.
1045 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
1046 depends on X86 && PCI
1047 select WATCHDOG_CORE
1049 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
1050 (Total Cost of Ownership) timer is a watchdog timer that will reboot
1051 the machine after its expiration. The expiration time can be
1052 configured with the "heartbeat" parameter.
1054 To compile this driver as a module, choose M here: the
1055 module will be called sp5100_tco.
1058 tristate "AMD Geode CS5535/CS5536 Watchdog"
1059 depends on CS5535_MFGPT
1061 This driver enables a watchdog capability built into the
1062 CS5535/CS5536 companion chips for the AMD Geode GX and LX
1063 processors. This watchdog watches your kernel to make sure
1064 it doesn't freeze, and if it does, it reboots your computer after
1065 a certain amount of time.
1067 You can compile this driver directly into the kernel, or use
1068 it as a module. The module will be called geodewdt.
1071 tristate "AMD Elan SC520 processor Watchdog"
1072 depends on MELAN || COMPILE_TEST
1074 This is the driver for the hardware watchdog built in to the
1075 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
1076 This watchdog simply watches your kernel to make sure it doesn't
1077 freeze, and if it does, it reboots your computer after a certain
1080 You can compile this driver directly into the kernel, or use
1081 it as a module. The module will be called sc520_wdt.
1083 config SBC_FITPC2_WATCHDOG
1084 tristate "Compulab SBC-FITPC2 watchdog"
1087 This is the driver for the built-in watchdog timer on the fit-PC2,
1088 fit-PC2i, CM-iAM single-board computers made by Compulab.
1090 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
1091 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
1093 Entering BIOS setup temporary disables watchdog operation regardless to current state,
1094 so system will not be restarted while user in BIOS setup.
1096 Once watchdog was enabled the system will be restarted every
1097 "Watchdog Timer Value" period, so to prevent it user can restart or
1098 disable the watchdog.
1100 To compile this driver as a module, choose M here: the
1101 module will be called sbc_fitpc2_wdt.
1103 Most people will say N.
1106 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1109 Enable support for the watchdog timer on the Eurotech CPU-1220 and
1110 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
1111 information are at <http://www.eurotech.it/>.
1114 tristate "IB700 SBC Watchdog Timer"
1117 This is the driver for the hardware watchdog on the IB700 Single
1118 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
1119 simply watches your kernel to make sure it doesn't freeze, and if
1120 it does, it reboots your computer after a certain amount of time.
1122 This driver is like the WDT501 driver but for slightly different hardware.
1124 To compile this driver as a module, choose M here: the
1125 module will be called ib700wdt.
1127 Most people will say N.
1130 tristate "IBM Automatic Server Restart"
1133 This is the driver for the IBM Automatic Server Restart watchdog
1134 timer built-in into some eServer xSeries machines.
1136 To compile this driver as a module, choose M here: the
1137 module will be called ibmasr.
1140 tristate "ICP Single Board Computer Watchdog Timer"
1143 This is a driver for the hardware watchdog on the ICP Single
1144 Board Computer. This driver is working on (at least) the following
1145 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1147 To compile this driver as a module, choose M here: the
1148 module will be called wafer5823wdt.
1151 tristate "Intel 6300ESB Timer/Watchdog"
1153 select WATCHDOG_CORE
1155 Hardware driver for the watchdog timer built into the Intel
1156 6300ESB controller hub.
1158 To compile this driver as a module, choose M here: the
1159 module will be called i6300esb.
1162 tristate "Intel Atom E6xx Watchdog"
1163 depends on X86 && PCI
1164 select WATCHDOG_CORE
1168 Hardware driver for the watchdog timer built into the Intel
1169 Atom E6XX (TunnelCreek) processor.
1171 To compile this driver as a module, choose M here: the
1172 module will be called ie6xx_wdt.
1174 config INTEL_SCU_WATCHDOG
1175 bool "Intel SCU Watchdog for Mobile Platforms"
1176 depends on X86_INTEL_MID
1178 Hardware driver for the watchdog time built into the Intel SCU
1179 for Intel Mobile Platforms.
1181 To compile this driver as a module, choose M here.
1183 config INTEL_MID_WATCHDOG
1184 tristate "Intel MID Watchdog Timer"
1185 depends on X86_INTEL_MID
1186 select WATCHDOG_CORE
1188 Watchdog timer driver built into the Intel SCU for Intel MID
1191 This driver currently supports only the watchdog evolution
1192 implementation in SCU, available for Merrifield generation.
1194 To compile this driver as a module, choose M here.
1197 tristate "Intel TCO Timer/Watchdog"
1198 depends on (X86 || IA64) && PCI
1199 select WATCHDOG_CORE
1200 depends on I2C || I2C=n
1201 select LPC_ICH if !EXPERT
1202 select I2C_I801 if !EXPERT && I2C
1204 Hardware driver for the intel TCO timer based watchdog devices.
1205 These drivers are included in the Intel 82801 I/O Controller
1206 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1209 The TCO (Total Cost of Ownership) timer is a watchdog timer
1210 that will reboot the machine after its second expiration. The
1211 expiration time can be configured with the "heartbeat" parameter.
1213 On some motherboards the driver may fail to reset the chipset's
1214 NO_REBOOT flag which prevents the watchdog from rebooting the
1215 machine. If this is the case you will get a kernel message like
1216 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1218 To compile this driver as a module, choose M here: the
1219 module will be called iTCO_wdt.
1221 config ITCO_VENDOR_SUPPORT
1222 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1225 Add vendor specific support to the intel TCO timer based watchdog
1226 devices. At this moment we only have additional support for some
1227 SuperMicro Inc. motherboards.
1230 tristate "IT8712F (Smart Guardian) Watchdog Timer"
1233 This is the driver for the built-in watchdog timer on the IT8712F
1234 Super I/0 chipset used on many motherboards.
1236 If the driver does not work, then make sure that the game port in
1237 the BIOS is enabled.
1239 To compile this driver as a module, choose M here: the
1240 module will be called it8712f_wdt.
1243 tristate "IT87 Watchdog Timer"
1245 select WATCHDOG_CORE
1247 This is the driver for the hardware watchdog on the ITE IT8607,
1248 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1249 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1250 IT8783 Super I/O chips.
1252 This watchdog simply watches your kernel to make sure it doesn't
1253 freeze, and if it does, it reboots your computer after a certain
1256 To compile this driver as a module, choose M here: the module will
1260 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1261 select WATCHDOG_CORE
1262 depends on X86 && PCI
1264 A software monitoring watchdog and NMI handling driver. This driver
1265 will detect lockups and provide a stack trace. This is a driver that
1266 will only load on an HP ProLiant system with a minimum of iLO2 support.
1267 To compile this driver as a module, choose M here: the module will be
1270 config HPWDT_NMI_DECODING
1271 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1272 depends on HP_WATCHDOG
1275 Enables the NMI handler for the watchdog pretimeout NMI and the iLO
1276 "Generate NMI to System" virtual button. When an NMI is claimed
1277 by the driver, panic is called.
1280 tristate "Kontron COM Watchdog Timer"
1281 depends on MFD_KEMPLD
1282 select WATCHDOG_CORE
1284 Support for the PLD watchdog on some Kontron ETX and COMexpress
1285 (ETXexpress) modules
1287 This driver can also be built as a module. If so, the module will be
1291 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1294 This is a driver for National Semiconductor PC87307/PC97307 hardware
1295 watchdog cards as found on the SC1200. This watchdog is mainly used
1296 for power management purposes and can be used to power down the device
1297 during inactivity periods (includes interrupt activity monitoring).
1299 To compile this driver as a module, choose M here: the
1300 module will be called sc1200wdt.
1302 Most people will say N.
1305 tristate "National Semiconductor SCx200 Watchdog"
1306 depends on SCx200 && PCI
1308 Enable the built-in watchdog timer support on the National
1309 Semiconductor SCx200 processors.
1311 If compiled as a module, it will be called scx200_wdt.
1314 tristate "NS PC87413 watchdog"
1317 This is the driver for the hardware watchdog on the PC87413 chipset
1318 This watchdog simply watches your kernel to make sure it doesn't
1319 freeze, and if it does, it reboots your computer after a certain
1322 To compile this driver as a module, choose M here: the
1323 module will be called pc87413_wdt.
1325 Most people will say N.
1328 tristate "nVidia TCO Timer/Watchdog"
1329 depends on X86 && PCI
1331 Hardware driver for the TCO timer built into the nVidia Hub family
1332 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
1333 watchdog timer that will reboot the machine after its second
1334 expiration. The expiration time can be configured with the
1335 "heartbeat" parameter.
1337 On some motherboards the driver may fail to reset the chipset's
1338 NO_REBOOT flag which prevents the watchdog from rebooting the
1339 machine. If this is the case you will get a kernel message like
1340 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1342 To compile this driver as a module, choose M here: the
1343 module will be called nv_tco.
1346 tristate "RDC R-321x SoC watchdog"
1347 depends on X86_RDC321X || COMPILE_TEST
1350 This is the driver for the built in hardware watchdog
1351 in the RDC R-321x SoC.
1353 To compile this driver as a module, choose M here: the
1354 module will be called rdc321x_wdt.
1357 tristate "SBC-60XX Watchdog Timer"
1360 This driver can be used with the watchdog timer found on some
1361 single board computers, namely the 6010 PII based computer.
1362 It may well work with other cards. It reads port 0x443 to enable
1363 and re-set the watchdog timer, and reads port 0x45 to disable
1364 the watchdog. If you have a card that behave in similar ways,
1365 you can probably make this driver work with your card as well.
1367 You can compile this driver directly into the kernel, or use
1368 it as a module. The module will be called sbc60xxwdt.
1371 tristate "SBC8360 Watchdog Timer"
1375 This is the driver for the hardware watchdog on the SBC8360 Single
1376 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1378 To compile this driver as a module, choose M here: the
1379 module will be called sbc8360.
1381 Most people will say N.
1384 tristate "SBC Nano 7240 Watchdog Timer"
1385 depends on X86_32 && !UML
1387 This is the driver for the hardware watchdog found on the IEI
1388 single board computers EPIC Nano 7240 (and likely others). This
1389 watchdog simply watches your kernel to make sure it doesn't freeze,
1390 and if it does, it reboots your computer after a certain amount of
1393 To compile this driver as a module, choose M here: the
1394 module will be called sbc7240_wdt.
1397 tristate "SMA CPU5 Watchdog"
1401 To compile this driver as a module, choose M here: the
1402 module will be called cpu5wdt.
1404 config SMSC_SCH311X_WDT
1405 tristate "SMSC SCH311X Watchdog Timer"
1408 This is the driver for the hardware watchdog timer on the
1409 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1410 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1413 To compile this driver as a module, choose M here: the
1414 module will be called sch311x_wdt.
1416 config SMSC37B787_WDT
1417 tristate "Winbond SMsC37B787 Watchdog Timer"
1420 This is the driver for the hardware watchdog component on the
1421 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1422 from Vision Systems and maybe others.
1424 This watchdog simply watches your kernel to make sure it doesn't
1425 freeze, and if it does, it reboots your computer after a certain
1428 Usually a userspace daemon will notify the kernel WDT driver that
1429 userspace is still alive, at regular intervals.
1431 To compile this driver as a module, choose M here: the
1432 module will be called smsc37b787_wdt.
1434 Most people will say N.
1437 tristate "TQ-Systems TQMX86 Watchdog Timer"
1440 This is the driver for the hardware watchdog timer in the TQMX86 IO
1441 controller found on some of their ComExpress Modules.
1443 To compile this driver as a module, choose M here; the module
1444 will be called tqmx86_wdt.
1446 Most people will say N.
1449 tristate "VIA Watchdog Timer"
1450 depends on X86 && PCI
1451 select WATCHDOG_CORE
1453 This is the driver for the hardware watchdog timer on VIA
1454 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1456 To compile this driver as a module, choose M here; the module
1457 will be called via_wdt.
1459 Most people will say N.
1462 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1464 select WATCHDOG_CORE
1466 This is the driver for the hardware watchdog on the following
1468 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1481 This watchdog simply watches your kernel to make sure it doesn't
1482 freeze, and if it does, it reboots your computer after a certain
1485 To compile this driver as a module, choose M here: the
1486 module will be called w83627hf_wdt.
1488 Most people will say N.
1491 tristate "W83877F (EMACS) Watchdog Timer"
1494 This is the driver for the hardware watchdog on the W83877F chipset
1495 as used in EMACS PC-104 motherboards (and likely others). This
1496 watchdog simply watches your kernel to make sure it doesn't freeze,
1497 and if it does, it reboots your computer after a certain amount of
1500 To compile this driver as a module, choose M here: the
1501 module will be called w83877f_wdt.
1503 Most people will say N.
1506 tristate "W83977F (PCM-5335) Watchdog Timer"
1509 This is the driver for the hardware watchdog on the W83977F I/O chip
1510 as used in AAEON's PCM-5335 SBC (and likely others). This
1511 watchdog simply watches your kernel to make sure it doesn't freeze,
1512 and if it does, it reboots your computer after a certain amount of
1515 To compile this driver as a module, choose M here: the
1516 module will be called w83977f_wdt.
1519 tristate "ZF MachZ Watchdog"
1522 If you are using a ZF Micro MachZ processor, say Y here, otherwise
1523 N. This is the driver for the watchdog timer built-in on that
1524 processor using ZF-Logic interface. This watchdog simply watches
1525 your kernel to make sure it doesn't freeze, and if it does, it
1526 reboots your computer after a certain amount of time.
1528 To compile this driver as a module, choose M here: the
1529 module will be called machzwd.
1531 config SBC_EPX_C3_WATCHDOG
1532 tristate "Winsystems SBC EPX-C3 watchdog"
1535 This is the driver for the built-in watchdog timer on the EPX-C3
1536 Single-board computer made by Winsystems, Inc.
1538 *Note*: This hardware watchdog is not probeable and thus there
1539 is no way to know if writing to its IO address will corrupt
1540 your system or have any real effect. The only way to be sure
1541 that this driver does what you want is to make sure you
1542 are running it on an EPX-C3 from Winsystems with the watchdog
1543 timer at IO address 0x1ee and 0x1ef. It will write to both those
1544 IO ports. Basically, the assumption is made that if you compile
1545 this driver into your kernel and/or load it as a module, that you
1546 know what you are doing and that you are in fact running on an
1549 To compile this driver as a module, choose M here: the
1550 module will be called sbc_epx_c3.
1552 config INTEL_MEI_WDT
1553 tristate "Intel MEI iAMT Watchdog"
1554 depends on INTEL_MEI && X86
1555 select WATCHDOG_CORE
1557 A device driver for the Intel MEI iAMT watchdog.
1559 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1560 Whenever the OS hangs or crashes, iAMT will send an event
1561 to any subscriber to this event. The watchdog doesn't reset the
1564 To compile this driver as a module, choose M here:
1565 the module will be called mei_wdt.
1568 tristate "NI 903x/913x Watchdog"
1569 depends on X86 && ACPI
1570 select WATCHDOG_CORE
1572 This is the driver for the watchdog timer on the National Instruments
1573 903x/913x real-time controllers.
1575 To compile this driver as a module, choose M here: the module will be
1579 tristate "NIC7018 Watchdog"
1580 depends on X86 && ACPI
1581 select WATCHDOG_CORE
1583 Support for National Instruments NIC7018 Watchdog.
1585 To compile this driver as a module, choose M here: the module will be
1590 config M54xx_WATCHDOG
1591 tristate "MCF54xx watchdog support"
1594 To compile this driver as a module, choose M here: the
1595 module will be called m54xx_wdt.
1597 # MicroBlaze Architecture
1602 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1603 depends on ATH79 || (ARM && COMPILE_TEST)
1605 Hardware driver for the built-in watchdog timer on the Atheros
1606 AR71XX/AR724X/AR913X SoCs.
1609 tristate "Broadcom BCM47xx Watchdog Timer"
1610 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1611 select WATCHDOG_CORE
1613 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1616 tristate "IDT RC32434 SoC Watchdog Timer"
1617 depends on MIKROTIK_RB532
1619 Hardware driver for the IDT RC32434 SoC built-in
1622 To compile this driver as a module, choose M here: the
1623 module will be called rc32434_wdt.
1626 tristate "Indy/I2 Hardware Watchdog"
1627 depends on SGI_HAS_INDYDOG
1629 Hardware driver for the Indy's/I2's watchdog. This is a
1630 watchdog timer that will reboot the machine after a 60 second
1631 timer expired and no process has written to /dev/watchdog during
1635 tristate "Ingenic jz4740 SoC hardware watchdog"
1636 depends on MACH_JZ4740 || MACH_JZ4780
1637 select WATCHDOG_CORE
1639 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1642 tristate "MTX-1 Hardware Watchdog"
1643 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1645 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1646 will reboot the machine after a 100 seconds timer expired.
1649 tristate "PNX833x Hardware Watchdog"
1650 depends on SOC_PNX8335
1653 Hardware driver for the PNX833x's watchdog. This is a
1654 watchdog timer that will reboot the machine after a programmable
1655 timer has expired and no process has written to /dev/watchdog during
1659 tristate "Sibyte SoC hardware watchdog"
1660 depends on CPU_SB1 || (MIPS && COMPILE_TEST)
1662 Watchdog driver for the built in watchdog hardware in Sibyte
1663 SoC processors. There are apparently two watchdog timers
1664 on such processors; this driver supports only the first one,
1665 because currently Linux only supports exporting one watchdog
1668 To compile this driver as a loadable module, choose M here.
1669 The module will be called sb_wdog.
1672 tristate "TI AR7 Watchdog Timer"
1673 depends on AR7 || (MIPS && COMPILE_TEST)
1675 Hardware driver for the TI AR7 Watchdog Timer.
1678 tristate "Toshiba TXx9 Watchdog Timer"
1679 depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
1680 select WATCHDOG_CORE
1682 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1685 tristate "Cavium OCTEON SOC family Watchdog Timer"
1686 depends on CAVIUM_OCTEON_SOC
1688 select WATCHDOG_CORE
1689 select EXPORT_UASM if OCTEON_WDT = m
1691 Hardware driver for OCTEON's on chip watchdog timer.
1692 Enables the watchdog for all cores running Linux. It
1693 installs a NMI handler and pokes the watchdog based on an
1694 interrupt. On first expiration of the watchdog, the
1695 interrupt handler pokes it. The second expiration causes an
1696 NMI that prints a message. The third expiration causes a
1699 When userspace has /dev/watchdog open, no poking is done
1700 from the first interrupt, it is then only poked when the
1704 tristate "Broadcom BCM63xx hardware watchdog"
1707 Watchdog driver for the built in watchdog hardware in Broadcom
1710 To compile this driver as a loadable module, choose M here.
1711 The module will be called bcm63xx_wdt.
1714 tristate "Broadcom BCM2835 hardware watchdog"
1715 depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1716 select WATCHDOG_CORE
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 bcm2835_wdt.
1725 tristate "BCM Kona Watchdog"
1726 depends on ARCH_BCM_MOBILE || COMPILE_TEST
1727 select WATCHDOG_CORE
1729 Support for the watchdog timer on the following Broadcom BCM281xx
1730 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1733 Say 'Y' or 'M' here to enable the driver. The module will be called
1736 config BCM_KONA_WDT_DEBUG
1737 bool "DEBUGFS support for BCM Kona Watchdog"
1738 depends on BCM_KONA_WDT
1740 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1741 access to the driver's internal data structures as well as watchdog
1742 timer hardware registres.
1744 If in doubt, say 'N'.
1747 tristate "BCM7038 Watchdog"
1748 select WATCHDOG_CORE
1749 depends on HAS_IOMEM
1750 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1752 Watchdog driver for the built-in hardware in Broadcom 7038 and
1753 later SoCs used in set-top boxes. BCM7038 was made public
1754 during the 2004 CES, and since then, many Broadcom chips use this
1755 watchdog block, including some cable modem chips.
1758 tristate "Imagination Technologies PDC Watchdog Timer"
1759 depends on HAS_IOMEM
1760 depends on MIPS || COMPILE_TEST
1761 select WATCHDOG_CORE
1763 Driver for Imagination Technologies PowerDown Controller
1766 To compile this driver as a loadable module, choose M here.
1767 The module will be called imgpdc_wdt.
1770 tristate "Lantiq SoC watchdog"
1772 select WATCHDOG_CORE
1774 Hardware driver for the Lantiq SoC Watchdog Timer.
1776 config LOONGSON1_WDT
1777 tristate "Loongson1 SoC hardware watchdog"
1778 depends on MACH_LOONGSON32
1779 select WATCHDOG_CORE
1781 Hardware driver for the Loongson1 SoC Watchdog Timer.
1784 tristate "Ralink SoC watchdog"
1785 select WATCHDOG_CORE
1788 Hardware driver for the Ralink SoC Watchdog Timer.
1791 tristate "Mediatek SoC watchdog"
1792 select WATCHDOG_CORE
1793 depends on SOC_MT7620 || SOC_MT7621
1795 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1798 tristate "Microchip PIC32 hardware watchdog"
1799 select WATCHDOG_CORE
1800 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1802 Watchdog driver for the built in watchdog hardware in a PIC32.
1804 Configuration bits must be set appropriately for the watchdog to be
1805 controlled by this driver.
1807 To compile this driver as a loadable module, choose M here.
1808 The module will be called pic32-wdt.
1811 tristate "Microchip PIC32 Deadman Timer"
1812 select WATCHDOG_CORE
1813 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1815 Watchdog driver for PIC32 instruction fetch counting timer. This specific
1816 timer is typically be used in misson critical and safety critical
1817 applications, where any single failure of the software functionality
1818 and sequencing must be detected.
1820 To compile this driver as a loadable module, choose M here.
1821 The module will be called pic32-dmt.
1823 # PARISC Architecture
1825 # POWERPC Architecture
1828 tristate "GE Watchdog Timer"
1831 Watchdog timer found in a number of GE single board computers.
1834 bool "MPC52xx Watchdog Timer"
1835 depends on PPC_MPC52xx || COMPILE_TEST
1837 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1840 tristate "MPC8xxx Platform Watchdog Timer"
1841 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1842 select WATCHDOG_CORE
1844 This driver is for a SoC level watchdog that exists on some
1845 Freescale PowerPC processors. So far this driver supports:
1850 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1853 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1854 depends on MV64X60 || COMPILE_TEST
1857 tristate "PIKA FPGA Watchdog"
1858 depends on WARP || (PPC64 && COMPILE_TEST)
1861 This enables the watchdog in the PIKA FPGA. Currently used on
1865 tristate "PowerPC Book-E Watchdog Timer"
1866 depends on BOOKE || 4xx
1867 select WATCHDOG_CORE
1869 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1870 MPC85xx SOCs and the IBM PowerPC 440.
1872 Please see Documentation/watchdog/watchdog-api.txt for
1875 config BOOKE_WDT_DEFAULT_TIMEOUT
1876 int "PowerPC Book-E Watchdog Timer Default Timeout"
1877 depends on BOOKE_WDT
1878 default 38 if PPC_FSL_BOOK3E
1879 range 0 63 if PPC_FSL_BOOK3E
1880 default 3 if !PPC_FSL_BOOK3E
1881 range 0 3 if !PPC_FSL_BOOK3E
1883 Select the default watchdog timer period to be used by the PowerPC
1884 Book-E watchdog driver. A watchdog "event" occurs when the bit
1885 position represented by this number transitions from zero to one.
1887 For Freescale Book-E processors, this is a number between 0 and 63.
1888 For other Book-E processors, this is a number between 0 and 3.
1890 The value can be overridden by the wdt_period command-line parameter.
1893 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1894 select WATCHDOG_CORE
1895 depends on GPIOLIB || COMPILE_TEST
1897 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1899 The driver can also be built as a module. If so, the module will be
1902 If unsure select N here.
1904 # PPC64 Architecture
1906 config WATCHDOG_RTAS
1907 tristate "RTAS watchdog"
1910 This driver adds watchdog support for the RTAS watchdog.
1912 To compile this driver as a module, choose M here. The module
1913 will be called wdrtas.
1917 config DIAG288_WATCHDOG
1918 tristate "System z diag288 Watchdog"
1920 select WATCHDOG_CORE
1922 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1923 provide a virtual watchdog timer to their guest that cause a
1924 user define Control Program command to be executed after a
1926 LPAR provides a very similar interface. This driver handles
1929 To compile this driver as a module, choose M here. The module
1930 will be called diag288_wdt.
1932 # SUPERH (sh + sh64) Architecture
1935 tristate "SuperH Watchdog"
1936 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1937 select WATCHDOG_CORE
1939 This driver adds watchdog support for the integrated watchdog in the
1940 SuperH processors. If you have one of these processors and wish
1941 to have watchdog support enabled, say Y, otherwise say N.
1943 As a side note, saying Y here will automatically boost HZ to 1000
1944 so that the timer has a chance to clear the overflow counter. On
1945 slower systems (such as the SH-2 and SH-3) this will likely yield
1946 some performance issues. As such, the WDT should be avoided here
1947 unless it is absolutely necessary.
1949 To compile this driver as a module, choose M here: the
1950 module will be called shwdt.
1952 # SPARC Architecture
1954 # SPARC64 Architecture
1956 config WATCHDOG_CP1XXX
1957 tristate "CP1XXX Hardware Watchdog support"
1958 depends on SPARC64 && PCI
1960 This is the driver for the hardware watchdog timers present on
1961 Sun Microsystems CompactPCI models CP1400 and CP1500.
1963 To compile this driver as a module, choose M here: the
1964 module will be called cpwatchdog.
1966 If you do not have a CompactPCI model CP1400 or CP1500, or
1967 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1968 you should say N to this option.
1971 tristate "RIO Hardware Watchdog support"
1972 depends on SPARC64 && PCI
1974 Say Y here to support the hardware watchdog capability on Sun RIO
1975 machines. The watchdog timeout period is normally one minute but
1976 can be changed with a boot-time parameter.
1978 config WATCHDOG_SUN4V
1979 tristate "Sun4v Watchdog support"
1980 select WATCHDOG_CORE
1983 Say Y here to support the hypervisor watchdog capability embedded
1984 in the SPARC sun4v architecture.
1986 To compile this driver as a module, choose M here. The module will
1987 be called sun4v_wdt.
1989 # XTENSA Architecture
1994 tristate "Xen Watchdog support"
1996 select WATCHDOG_CORE
1998 Say Y here to support the hypervisor watchdog capability provided
1999 by Xen 4.0 and newer. The watchdog timeout period is normally one
2000 minute but can be changed with a boot-time parameter.
2003 tristate "UML watchdog"
2004 depends on UML || COMPILE_TEST
2007 # ISA-based Watchdog Cards
2010 comment "ISA-based Watchdog Cards"
2014 tristate "Berkshire Products ISA-PC Watchdog"
2017 This is the driver for the Berkshire Products ISA-PC Watchdog card.
2018 This card simply watches your kernel to make sure it doesn't freeze,
2019 and if it does, it reboots your computer after a certain amount of
2020 time. This driver is like the WDT501 driver but for different
2021 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
2022 watchdog cards can be ordered from <http://www.berkprod.com/>.
2024 To compile this driver as a module, choose M here: the
2025 module will be called pcwd.
2027 Most people will say N.
2030 tristate "Mixcom Watchdog"
2033 This is a driver for the Mixcom hardware watchdog cards. This
2034 watchdog simply watches your kernel to make sure it doesn't freeze,
2035 and if it does, it reboots your computer after a certain amount of
2038 To compile this driver as a module, choose M here: the
2039 module will be called mixcomwd.
2041 Most people will say N.
2044 tristate "WDT Watchdog timer"
2047 If you have a WDT500P or WDT501P watchdog board, say Y here,
2048 otherwise N. It is not possible to probe for this board, which means
2049 that you have to inform the kernel about the IO port and IRQ that
2050 is needed (you can do this via the io and irq parameters)
2052 To compile this driver as a module, choose M here: the
2053 module will be called wdt.
2056 # PCI-based Watchdog Cards
2059 comment "PCI-based Watchdog Cards"
2062 config PCIPCWATCHDOG
2063 tristate "Berkshire Products PCI-PC Watchdog"
2066 This is the driver for the Berkshire Products PCI-PC Watchdog card.
2067 This card simply watches your kernel to make sure it doesn't freeze,
2068 and if it does, it reboots your computer after a certain amount of
2069 time. The card can also monitor the internal temperature of the PC.
2070 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
2072 To compile this driver as a module, choose M here: the
2073 module will be called pcwd_pci.
2075 Most people will say N.
2078 tristate "PCI-WDT500/501 Watchdog timer"
2081 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
2083 If you have a PCI-WDT501 watchdog board then you can enable the
2084 temperature sensor by setting the type parameter to 501.
2086 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
2087 can do this via the tachometer parameter. Only do this if you have a
2088 fan tachometer actually set up.
2090 To compile this driver as a module, choose M here: the
2091 module will be called wdt_pci.
2094 # USB-based Watchdog Cards
2097 comment "USB-based Watchdog Cards"
2100 config USBPCWATCHDOG
2101 tristate "Berkshire Products USB-PC Watchdog"
2104 This is the driver for the Berkshire Products USB-PC Watchdog card.
2105 This card simply watches your kernel to make sure it doesn't freeze,
2106 and if it does, it reboots your computer after a certain amount of
2107 time. The card can also monitor the internal temperature of the PC.
2108 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2110 To compile this driver as a module, choose M here: the
2111 module will be called pcwd_usb.
2113 Most people will say N.