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 bool "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
67 # General Watchdog drivers
70 comment "Watchdog Device Drivers"
72 # Architecture Independent
75 tristate "Software watchdog"
78 A software monitoring watchdog. This will fail to reboot your system
79 from some situations that the hardware watchdog will recover
80 from. Equally it's a lot cheaper to install.
82 To compile this driver as a module, choose M here: the
83 module will be called softdog.
85 config SOFT_WATCHDOG_PRETIMEOUT
86 bool "Software watchdog pretimeout governor support"
87 depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV
89 Enable this if you want to use pretimeout governors with the software
90 watchdog. Be aware that governors might affect the watchdog because it
91 is purely software, e.g. the panic governor will stall it!
93 config DA9052_WATCHDOG
94 tristate "Dialog DA9052 Watchdog"
95 depends on PMIC_DA9052 || COMPILE_TEST
98 Support for the watchdog in the DA9052 PMIC. Watchdog trigger
101 Say Y here to include support for the DA9052 watchdog.
102 Alternatively say M to compile the driver as a module,
103 which will be called da9052_wdt.
105 config DA9055_WATCHDOG
106 tristate "Dialog Semiconductor DA9055 Watchdog"
107 depends on MFD_DA9055 || COMPILE_TEST
110 If you say yes here you get support for watchdog on the Dialog
111 Semiconductor DA9055 PMIC.
113 This driver can also be built as a module. If so, the module
114 will be called da9055_wdt.
116 config DA9063_WATCHDOG
117 tristate "Dialog DA9063 Watchdog"
118 depends on MFD_DA9063 || COMPILE_TEST
121 Support for the watchdog in the DA9063 PMIC.
123 This driver can be built as a module. The module name is da9063_wdt.
125 config DA9062_WATCHDOG
126 tristate "Dialog DA9062/61 Watchdog"
127 depends on MFD_DA9062 || COMPILE_TEST
130 Support for the watchdog in the DA9062 and DA9061 PMICs.
132 This driver can be built as a module. The module name is da9062_wdt.
135 tristate "Watchdog device controlled through GPIO-line"
139 If you say yes here you get support for watchdog device
140 controlled through GPIO-line.
142 config GPIO_WATCHDOG_ARCH_INITCALL
143 bool "Register the watchdog as early as possible"
144 depends on GPIO_WATCHDOG=y
146 In some situations, the default initcall level (module_init)
147 in not early enough in the boot process to avoid the watchdog
149 If you say yes here, the initcall level would be raised to
153 config MENF21BMC_WATCHDOG
154 tristate "MEN 14F021P00 BMC Watchdog"
155 depends on MFD_MENF21BMC || COMPILE_TEST
159 Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
161 This driver can also be built as a module. If so the module
162 will be called menf21bmc_wdt.
164 config MENZ069_WATCHDOG
165 tristate "MEN 16Z069 Watchdog"
169 Say Y here to include support for the MEN 16Z069 Watchdog.
171 This driver can also be built as a module. If so the module
172 will be called menz069_wdt.
174 config TANGOX_WATCHDOG
175 tristate "Sigma Designs SMP86xx/SMP87xx watchdog"
177 depends on ARCH_TANGO || COMPILE_TEST
180 Support for the watchdog in Sigma Designs SMP86xx (tango3)
181 and SMP87xx (tango4) family chips.
183 This driver can be built as a module. The module name is tangox_wdt.
186 tristate "ACPI Watchdog Action Table (WDAT)"
191 This driver adds support for systems with ACPI Watchdog Action
192 Table (WDAT) table. Servers typically have this but it can be
193 found on some desktop machines as well. This driver will take
194 over the native iTCO watchdog driver found on many Intel CPUs.
196 To compile this driver as module, choose M here: the module will
199 config WM831X_WATCHDOG
200 tristate "WM831x watchdog"
201 depends on MFD_WM831X
204 Support for the watchdog in the WM831x AudioPlus PMICs. When
205 the watchdog triggers the system will be reset.
207 config WM8350_WATCHDOG
208 tristate "WM8350 watchdog"
209 depends on MFD_WM8350
212 Support for the watchdog in the WM8350 AudioPlus PMIC. When
213 the watchdog triggers the system will be reset.
215 config XILINX_WATCHDOG
216 tristate "Xilinx Watchdog timer"
220 Watchdog driver for the xps_timebase_wdt ip core.
222 To compile this driver as a module, choose M here: the
223 module will be called of_xilinx_wdt.
225 config ZIIRAVE_WATCHDOG
226 tristate "Zodiac RAVE Watchdog Timer"
230 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
233 To compile this driver as a module, choose M here: the
234 module will be called ziirave_wdt.
236 config RAVE_SP_WATCHDOG
237 tristate "RAVE SP Watchdog timer"
238 depends on RAVE_SP_CORE
239 depends on NVMEM || !NVMEM
242 Support for the watchdog on RAVE SP device.
248 config ARM_SP805_WATCHDOG
249 tristate "ARM SP805 Watchdog"
250 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
253 ARM Primecell SP805 Watchdog timer. This will reboot your system when
254 the timeout is reached.
256 config ARM_SBSA_WATCHDOG
257 tristate "ARM SBSA Generic Watchdog"
259 depends on ARM_ARCH_TIMER
262 ARM SBSA Generic Watchdog has two stage timeouts:
263 the first signal (WS0) is for alerting the system by interrupt,
264 the second one (WS1) is a real hardware reset.
265 More details: ARM DEN0029B - Server Base System Architecture (SBSA)
267 This driver can operate ARM SBSA Generic Watchdog as a single stage
268 or a two stages watchdog, it depends on the module parameter "action".
270 Note: the maximum timeout in the two stages mode is half of that in
271 the single stage mode.
273 To compile this driver as module, choose M here: The module
274 will be called sbsa_gwdt.
276 config ARMADA_37XX_WATCHDOG
277 tristate "Armada 37xx watchdog"
278 depends on ARCH_MVEBU || COMPILE_TEST
282 Say Y here to include support for the watchdog timer found on
283 Marvell Armada 37xx SoCs.
284 To compile this driver as a module, choose M here: the
285 module will be called armada_37xx_wdt.
287 config ASM9260_WATCHDOG
288 tristate "Alphascale ASM9260 watchdog"
289 depends on MACH_ASM9260 || COMPILE_TEST
292 select RESET_CONTROLLER
294 Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your
295 system when the timeout is reached.
297 config AT91RM9200_WATCHDOG
298 tristate "AT91RM9200 watchdog"
299 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
301 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
302 system when the timeout is reached.
304 config AT91SAM9X_WATCHDOG
305 tristate "AT91SAM9X / AT91CAP9 watchdog"
306 depends on ARCH_AT91 || COMPILE_TEST
309 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
310 reboot your system when the timeout is reached.
312 config SAMA5D4_WATCHDOG
313 tristate "Atmel SAMA5D4 Watchdog Timer"
314 depends on ARCH_AT91 || COMPILE_TEST
317 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
318 Its Watchdog Timer Mode Register can be written more than once.
319 This will reboot your system when the timeout is reached.
321 config CADENCE_WATCHDOG
322 tristate "Cadence Watchdog Timer"
326 Say Y here if you want to include support for the watchdog
327 timer in the Xilinx Zynq.
329 config 21285_WATCHDOG
330 tristate "DC21285 watchdog"
331 depends on FOOTBRIDGE
333 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
334 here if you wish to use this. Alternatively say M to compile the
335 driver as a module, which will be called wdt285.
337 This driver does not work on all machines. In particular, early CATS
338 boards have hardware problems that will cause the machine to simply
339 lock up if the watchdog fires.
341 "If in doubt, leave it out" - say N.
344 tristate "NetWinder WB83C977 watchdog"
345 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
347 Say Y here to include support for the WB977 watchdog included in
348 NetWinder machines. Alternatively say M to compile the driver as
349 a module, which will be called wdt977.
351 Not sure? It's safe to say N.
353 config FTWDT010_WATCHDOG
354 tristate "Faraday Technology FTWDT010 watchdog"
355 depends on ARM || COMPILE_TEST
359 Say Y here if to include support for the Faraday Technology
360 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
363 To compile this driver as a module, choose M here: the
364 module will be called ftwdt010_wdt.
366 config IXP4XX_WATCHDOG
367 tristate "IXP4xx Watchdog"
368 depends on ARCH_IXP4XX
370 Say Y here if to include support for the watchdog timer
371 in the Intel IXP4xx network processors. This driver can
372 be built as a module by choosing M. The module will
373 be called ixp4xx_wdt.
375 Note: The internal IXP4xx watchdog does a soft CPU reset
376 which doesn't reset any peripherals. There are circumstances
377 where the watchdog will fail to reset the board correctly
378 (e.g., if the boot ROM is in an unreadable state).
380 Say N if you are unsure.
382 config KS8695_WATCHDOG
383 tristate "KS8695 watchdog"
384 depends on ARCH_KS8695
386 Watchdog timer embedded into KS8695 processor. This will reboot your
387 system when the timeout is reached.
389 config HAVE_S3C2410_WATCHDOG
392 This will include watchdog timer support for Samsung SoCs. If
393 you want to include watchdog support for any machine, kindly
394 select this in the respective mach-XXXX/Kconfig file.
396 config S3C2410_WATCHDOG
397 tristate "S3C2410 Watchdog"
398 depends on HAVE_S3C2410_WATCHDOG || COMPILE_TEST
400 select MFD_SYSCON if ARCH_EXYNOS
402 Watchdog timer block in the Samsung SoCs. This will reboot
403 the system when the timer expires with the watchdog enabled.
405 The driver is limited by the speed of the system's PCLK
406 signal, so with reasonably fast systems (PCLK around 50-66MHz)
407 then watchdog intervals of over approximately 20seconds are
410 The driver can be built as a module by choosing M, and will
411 be called s3c2410_wdt
413 config SA1100_WATCHDOG
414 tristate "SA1100/PXA2xx watchdog"
415 depends on ARCH_SA1100 || ARCH_PXA
417 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
418 reboot your system when timeout is reached.
420 NOTE: once enabled, this timer cannot be disabled.
422 To compile this driver as a module, choose M here: the
423 module will be called sa1100_wdt.
426 tristate "Synopsys DesignWare watchdog"
430 Say Y here if to include support for the Synopsys DesignWare
431 watchdog timer found in many chips.
432 To compile this driver as a module, choose M here: the
433 module will be called dw_wdt.
435 config EP93XX_WATCHDOG
436 tristate "EP93xx Watchdog"
437 depends on ARCH_EP93XX || COMPILE_TEST
440 Say Y here if to include support for the watchdog timer
441 embedded in the Cirrus Logic EP93xx family of devices.
443 To compile this driver as a module, choose M here: the
444 module will be called ep93xx_wdt.
447 tristate "OMAP Watchdog"
448 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
451 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
452 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
454 config PNX4008_WATCHDOG
455 tristate "LPC32XX Watchdog"
456 depends on ARCH_LPC32XX
459 Say Y here if to include support for the watchdog timer
460 in the LPC32XX processor.
461 This driver can be built as a module by choosing M. The module
462 will be called pnx4008_wdt.
464 Say N if you are unsure.
467 tristate "IOP Watchdog"
468 depends on ARCH_IOP13XX
469 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
471 Say Y here if to include support for the watchdog timer
472 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
473 be built as a module by choosing M. The module will
476 Note: The IOP13XX watchdog does an Internal Bus Reset which will
477 affect both cores and the peripherals of the IOP. The ATU-X
478 and/or ATUe configuration registers will remain intact, but if
479 operating as an Root Complex and/or Central Resource, the PCI-X
480 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
482 config DAVINCI_WATCHDOG
483 tristate "DaVinci watchdog"
484 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
487 Say Y here if to include support for the watchdog timer
488 in the DaVinci DM644x/DM646x or Keystone processors.
489 To compile this driver as a module, choose M here: the
490 module will be called davinci_wdt.
492 NOTE: once enabled, this timer cannot be disabled.
493 Say N if you are unsure.
495 config ORION_WATCHDOG
496 tristate "Orion watchdog"
497 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || (COMPILE_TEST && !ARCH_EBSA110)
501 Say Y here if to include support for the watchdog timer
502 in the Marvell Orion5x and Kirkwood ARM SoCs.
503 To compile this driver as a module, choose M here: the
504 module will be called orion_wdt.
506 config RN5T618_WATCHDOG
507 tristate "Ricoh RN5T618 watchdog"
508 depends on MFD_RN5T618 || COMPILE_TEST
511 If you say yes here you get support for watchdog on the Ricoh
514 This driver can also be built as a module. If so, the module
515 will be called rn5t618_wdt.
517 config SUNXI_WATCHDOG
518 tristate "Allwinner SoCs watchdog support"
519 depends on ARCH_SUNXI || COMPILE_TEST
522 Say Y here to include support for the watchdog timer
524 To compile this driver as a module, choose M here: the
525 module will be called sunxi_wdt.
527 config COH901327_WATCHDOG
528 bool "ST-Ericsson COH 901 327 watchdog"
529 depends on ARCH_U300 || (ARM && COMPILE_TEST)
530 default y if MACH_U300
533 Say Y here to include Watchdog timer support for the
534 watchdog embedded into the ST-Ericsson U300 series platforms.
535 This watchdog is used to reset the system and thus cannot be
536 compiled as a module.
538 config NPCM7XX_WATCHDOG
539 bool "Nuvoton NPCM750 watchdog"
540 depends on ARCH_NPCM || COMPILE_TEST
541 default y if ARCH_NPCM7XX
544 Say Y here to include Watchdog timer support for the
545 watchdog embedded into the NPCM7xx.
546 This watchdog is used to reset the system and thus cannot be
547 compiled as a module.
549 config TWL4030_WATCHDOG
550 tristate "TWL4030 Watchdog"
551 depends on TWL4030_CORE
554 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
555 watchdog timer support for TWL4030 chips.
557 config STMP3XXX_RTC_WATCHDOG
558 tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
559 depends on RTC_DRV_STMP || COMPILE_TEST
562 Say Y here to include support for the watchdog timer inside
563 the RTC for the STMP37XX/378X or i.MX23/28 SoC.
564 To compile this driver as a module, choose M here: the
565 module will be called stmp3xxx_rtc_wdt.
567 config NUC900_WATCHDOG
568 tristate "Nuvoton NUC900 watchdog"
569 depends on ARCH_W90X900 || COMPILE_TEST
571 Say Y here if to include support for the watchdog timer
572 for the Nuvoton NUC900 series SoCs.
573 To compile this driver as a module, choose M here: the
574 module will be called nuc900_wdt.
576 config TS4800_WATCHDOG
577 tristate "TS-4800 Watchdog"
578 depends on HAS_IOMEM && OF
579 depends on SOC_IMX51 || COMPILE_TEST
583 Technologic Systems TS-4800 has watchdog timer implemented in
584 an external FPGA. Say Y here if you want to support for the
585 watchdog timer on TS-4800 board.
587 config TS72XX_WATCHDOG
588 tristate "TS-72XX SBC Watchdog"
589 depends on MACH_TS72XX || COMPILE_TEST
591 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
592 watchdog timer implemented in a external CPLD chip. Say Y here
593 if you want to support for the watchdog timer on TS-72XX boards.
595 To compile this driver as a module, choose M here: the
596 module will be called ts72xx_wdt.
598 config MAX63XX_WATCHDOG
599 tristate "Max63xx watchdog"
603 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
605 config MAX77620_WATCHDOG
606 tristate "Maxim Max77620 Watchdog Timer"
607 depends on MFD_MAX77620 || COMPILE_TEST
609 This is the driver for the Max77620 watchdog timer.
610 Say 'Y' here to enable the watchdog timer support for
611 MAX77620 chips. To compile this driver as a module,
612 choose M here: the module will be called max77620_wdt.
615 tristate "IMX2+ Watchdog"
616 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
620 This is the driver for the hardware watchdog
621 on the Freescale IMX2 and later processors.
622 If you have one of these processors and wish to have
623 watchdog support enabled, say Y, otherwise say N.
625 To compile this driver as a module, choose M here: the
626 module will be called imx2_wdt.
628 config UX500_WATCHDOG
629 tristate "ST-Ericsson Ux500 watchdog"
630 depends on MFD_DB8500_PRCMU
634 Say Y here to include Watchdog timer support for the watchdog
635 existing in the prcmu of ST-Ericsson Ux500 series platforms.
637 To compile this driver as a module, choose M here: the
638 module will be called ux500_wdt.
641 tristate "Retu watchdog"
645 Retu watchdog driver for Nokia Internet Tablets (770, N800,
646 N810). At least on N800 the watchdog cannot be disabled, so
647 this driver is essential and you should enable it.
649 To compile this driver as a module, choose M here: the
650 module will be called retu_wdt.
653 tristate "MOXART watchdog"
654 depends on ARCH_MOXART || COMPILE_TEST
656 Say Y here to include Watchdog timer support for the watchdog
657 existing on the MOXA ART SoC series platforms.
659 To compile this driver as a module, choose M here: the
660 module will be called moxart_wdt.
662 config SIRFSOC_WATCHDOG
663 tristate "SiRFSOC watchdog"
664 depends on ARCH_SIRF || COMPILE_TEST
668 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
669 the watchdog triggers the system will be reset.
671 config ST_LPC_WATCHDOG
672 tristate "STMicroelectronics LPC Watchdog"
673 depends on ARCH_STI || COMPILE_TEST
677 Say Y here to include STMicroelectronics Low Power Controller
678 (LPC) based Watchdog timer support.
680 To compile this driver as a module, choose M here: the
681 module will be called st_lpc_wdt.
683 config TEGRA_WATCHDOG
684 tristate "Tegra watchdog"
685 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
688 Say Y here to include support for the watchdog timer
689 embedded in NVIDIA Tegra SoCs.
691 To compile this driver as a module, choose M here: the
692 module will be called tegra_wdt.
695 tristate "QCOM watchdog"
697 depends on ARCH_QCOM || COMPILE_TEST
700 Say Y here to include Watchdog timer support for the watchdog found
701 on QCOM chipsets. Currently supported targets are the MSM8960,
702 APQ8064, and IPQ8064.
704 To compile this driver as a module, choose M here: the
705 module will be called qcom_wdt.
707 config MESON_GXBB_WATCHDOG
708 tristate "Amlogic Meson GXBB SoCs watchdog support"
709 depends on ARCH_MESON || COMPILE_TEST
712 Say Y here to include support for the watchdog timer
713 in Amlogic Meson GXBB SoCs.
714 To compile this driver as a module, choose M here: the
715 module will be called meson_gxbb_wdt.
717 config MESON_WATCHDOG
718 tristate "Amlogic Meson SoCs watchdog support"
719 depends on ARCH_MESON || COMPILE_TEST
722 Say Y here to include support for the watchdog timer
723 in Amlogic Meson SoCs.
724 To compile this driver as a module, choose M here: the
725 module will be called meson_wdt.
727 config MEDIATEK_WATCHDOG
728 tristate "Mediatek SoCs watchdog support"
729 depends on ARCH_MEDIATEK || COMPILE_TEST
732 Say Y here to include support for the watchdog timer
734 To compile this driver as a module, choose M here: the
735 module will be called mtk_wdt.
737 config DIGICOLOR_WATCHDOG
738 tristate "Conexant Digicolor SoCs watchdog support"
739 depends on ARCH_DIGICOLOR || COMPILE_TEST
742 Say Y here to include support for the watchdog timer
743 in Conexant Digicolor SoCs.
744 To compile this driver as a module, choose M here: the
745 module will be called digicolor_wdt.
747 config LPC18XX_WATCHDOG
748 tristate "LPC18xx/43xx Watchdog"
749 depends on ARCH_LPC18XX || COMPILE_TEST
753 Say Y here if to include support for the watchdog timer
754 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
756 To compile this driver as a module, choose M here: the
757 module will be called lpc18xx_wdt.
759 config ATLAS7_WATCHDOG
760 tristate "CSRatlas7 watchdog"
761 depends on ARCH_ATLAS7 || COMPILE_TEST
763 Say Y here to include Watchdog timer support for the watchdog
764 existing on the CSRatlas7 series platforms.
766 To compile this driver as a module, choose M here: the
767 module will be called atlas7_wdt.
770 tristate "Renesas WDT Watchdog"
771 depends on ARCH_RENESAS || COMPILE_TEST
774 This driver adds watchdog support for the integrated watchdogs in the
775 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
777 config RENESAS_RZAWDT
778 tristate "Renesas RZ/A WDT Watchdog"
779 depends on ARCH_RENESAS || COMPILE_TEST
782 This driver adds watchdog support for the integrated watchdogs in the
783 Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
785 config ASPEED_WATCHDOG
786 tristate "Aspeed BMC watchdog support"
787 depends on ARCH_ASPEED || COMPILE_TEST
790 Say Y here to include support for the watchdog timer
793 This driver is required to reboot the SoC.
795 To compile this driver as a module, choose M here: the
796 module will be called aspeed_wdt.
798 config ZX2967_WATCHDOG
799 tristate "ZTE zx2967 SoCs watchdog support"
803 Say Y here to include support for the watchdog timer
805 To compile this driver as a module, choose M here: the
806 module will be called zx2967_wdt.
808 config STM32_WATCHDOG
809 tristate "STM32 Independent WatchDoG (IWDG) support"
810 depends on ARCH_STM32
814 Say Y here to include support for the watchdog timer
817 To compile this driver as a module, choose M here: the
818 module will be called stm32_iwdg.
820 config STPMIC1_WATCHDOG
821 tristate "STPMIC1 PMIC watchdog support"
822 depends on MFD_STPMIC1
825 Say Y here to include watchdog support embedded into STPMIC1 PMIC.
826 If the watchdog timer expires, stpmic1 will shut down all its power
829 To compile this driver as a module, choose M here: the
830 module will be called spmic1_wdt.
832 config UNIPHIER_WATCHDOG
833 tristate "UniPhier watchdog support"
834 depends on ARCH_UNIPHIER || COMPILE_TEST
835 depends on OF && MFD_SYSCON
838 Say Y here to include support watchdog timer embedded
839 into the UniPhier system.
841 To compile this driver as a module, choose M here: the
842 module will be called uniphier_wdt.
844 config RTD119X_WATCHDOG
845 bool "Realtek RTD119x/RTD129x watchdog support"
846 depends on ARCH_REALTEK || COMPILE_TEST
851 Say Y here to include support for the watchdog timer in
852 Realtek RTD1295 SoCs.
855 tristate "Spreadtrum watchdog support"
856 depends on ARCH_SPRD || COMPILE_TEST
859 Say Y here to include watchdog timer supported
860 by Spreadtrum system.
862 config PM8916_WATCHDOG
863 tristate "QCOM PM8916 pmic watchdog"
864 depends on OF && MFD_SPMI_PMIC
867 Say Y here to include support watchdog timer embedded into the
870 # X86 (i386 + ia64 + x86_64) Architecture
873 tristate "Acquire SBC Watchdog Timer"
876 This is the driver for the hardware watchdog on Single Board
877 Computers produced by Acquire Inc (and others). This watchdog
878 simply watches your kernel to make sure it doesn't freeze, and if
879 it does, it reboots your computer after a certain amount of time.
881 To compile this driver as a module, choose M here: the
882 module will be called acquirewdt.
884 Most people will say N.
887 tristate "Advantech SBC Watchdog Timer"
890 If you are configuring a Linux kernel for the Advantech single-board
891 computer, say `Y' here to support its built-in watchdog timer
892 feature. More information can be found at
893 <http://www.advantech.com.tw/products/>
896 tristate "ALi M1535 PMU Watchdog Timer"
897 depends on X86 && PCI
899 This is the driver for the hardware watchdog on the ALi M1535 PMU.
901 To compile this driver as a module, choose M here: the
902 module will be called alim1535_wdt.
904 Most people will say N.
907 tristate "ALi M7101 PMU Computer Watchdog"
910 This is the driver for the hardware watchdog on the ALi M7101 PMU
911 as used in the x86 Cobalt servers and also found in some
912 SPARC Netra servers too.
914 To compile this driver as a module, choose M here: the
915 module will be called alim7101_wdt.
917 Most people will say N.
920 tristate "WinSystems EBC-C384 Watchdog Timer"
925 Enables watchdog timer support for the watchdog timer on the
926 WinSystems EBC-C384 motherboard. The timeout may be configured via
927 the timeout module parameter.
930 tristate "Fintek F718xx, F818xx Super I/O Watchdog"
933 This is the driver for the hardware watchdog on the Fintek F71808E,
934 F71862FG, F71868, F71869, F71882FG, F71889FG, F81865 and F81866
935 Super I/O controllers.
937 You can compile this driver directly into the kernel, or use
938 it as a module. The module will be called f71808e_wdt.
941 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
942 depends on X86 && PCI
945 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
946 (Total Cost of Ownership) timer is a watchdog timer that will reboot
947 the machine after its expiration. The expiration time can be
948 configured with the "heartbeat" parameter.
950 To compile this driver as a module, choose M here: the
951 module will be called sp5100_tco.
954 tristate "AMD Geode CS5535/CS5536 Watchdog"
955 depends on CS5535_MFGPT
957 This driver enables a watchdog capability built into the
958 CS5535/CS5536 companion chips for the AMD Geode GX and LX
959 processors. This watchdog watches your kernel to make sure
960 it doesn't freeze, and if it does, it reboots your computer after
961 a certain amount of time.
963 You can compile this driver directly into the kernel, or use
964 it as a module. The module will be called geodewdt.
967 tristate "AMD Elan SC520 processor Watchdog"
968 depends on MELAN || COMPILE_TEST
970 This is the driver for the hardware watchdog built in to the
971 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
972 This watchdog simply watches your kernel to make sure it doesn't
973 freeze, and if it does, it reboots your computer after a certain
976 You can compile this driver directly into the kernel, or use
977 it as a module. The module will be called sc520_wdt.
979 config SBC_FITPC2_WATCHDOG
980 tristate "Compulab SBC-FITPC2 watchdog"
983 This is the driver for the built-in watchdog timer on the fit-PC2,
984 fit-PC2i, CM-iAM single-board computers made by Compulab.
986 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
987 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
989 Entering BIOS setup temporary disables watchdog operation regardless to current state,
990 so system will not be restarted while user in BIOS setup.
992 Once watchdog was enabled the system will be restarted every
993 "Watchdog Timer Value" period, so to prevent it user can restart or
994 disable the watchdog.
996 To compile this driver as a module, choose M here: the
997 module will be called sbc_fitpc2_wdt.
999 Most people will say N.
1002 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
1005 Enable support for the watchdog timer on the Eurotech CPU-1220 and
1006 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
1007 information are at <http://www.eurotech.it/>.
1010 tristate "IB700 SBC Watchdog Timer"
1013 This is the driver for the hardware watchdog on the IB700 Single
1014 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
1015 simply watches your kernel to make sure it doesn't freeze, and if
1016 it does, it reboots your computer after a certain amount of time.
1018 This driver is like the WDT501 driver but for slightly different hardware.
1020 To compile this driver as a module, choose M here: the
1021 module will be called ib700wdt.
1023 Most people will say N.
1026 tristate "IBM Automatic Server Restart"
1029 This is the driver for the IBM Automatic Server Restart watchdog
1030 timer built-in into some eServer xSeries machines.
1032 To compile this driver as a module, choose M here: the
1033 module will be called ibmasr.
1036 tristate "ICP Single Board Computer Watchdog Timer"
1039 This is a driver for the hardware watchdog on the ICP Single
1040 Board Computer. This driver is working on (at least) the following
1041 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1043 To compile this driver as a module, choose M here: the
1044 module will be called wafer5823wdt.
1047 tristate "Intel 6300ESB Timer/Watchdog"
1049 select WATCHDOG_CORE
1051 Hardware driver for the watchdog timer built into the Intel
1052 6300ESB controller hub.
1054 To compile this driver as a module, choose M here: the
1055 module will be called i6300esb.
1058 tristate "Intel Atom E6xx Watchdog"
1059 depends on X86 && PCI
1060 select WATCHDOG_CORE
1064 Hardware driver for the watchdog timer built into the Intel
1065 Atom E6XX (TunnelCreek) processor.
1067 To compile this driver as a module, choose M here: the
1068 module will be called ie6xx_wdt.
1070 config INTEL_SCU_WATCHDOG
1071 bool "Intel SCU Watchdog for Mobile Platforms"
1072 depends on X86_INTEL_MID
1074 Hardware driver for the watchdog time built into the Intel SCU
1075 for Intel Mobile Platforms.
1077 To compile this driver as a module, choose M here.
1079 config INTEL_MID_WATCHDOG
1080 tristate "Intel MID Watchdog Timer"
1081 depends on X86_INTEL_MID
1082 select WATCHDOG_CORE
1084 Watchdog timer driver built into the Intel SCU for Intel MID
1087 This driver currently supports only the watchdog evolution
1088 implementation in SCU, available for Merrifield generation.
1090 To compile this driver as a module, choose M here.
1093 tristate "Intel TCO Timer/Watchdog"
1094 depends on (X86 || IA64) && PCI
1095 select WATCHDOG_CORE
1096 depends on I2C || I2C=n
1097 select LPC_ICH if !EXPERT
1098 select I2C_I801 if !EXPERT && I2C
1100 Hardware driver for the intel TCO timer based watchdog devices.
1101 These drivers are included in the Intel 82801 I/O Controller
1102 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1105 The TCO (Total Cost of Ownership) timer is a watchdog timer
1106 that will reboot the machine after its second expiration. The
1107 expiration time can be configured with the "heartbeat" parameter.
1109 On some motherboards the driver may fail to reset the chipset's
1110 NO_REBOOT flag which prevents the watchdog from rebooting the
1111 machine. If this is the case you will get a kernel message like
1112 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1114 To compile this driver as a module, choose M here: the
1115 module will be called iTCO_wdt.
1117 config ITCO_VENDOR_SUPPORT
1118 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1121 Add vendor specific support to the intel TCO timer based watchdog
1122 devices. At this moment we only have additional support for some
1123 SuperMicro Inc. motherboards.
1126 tristate "IT8712F (Smart Guardian) Watchdog Timer"
1129 This is the driver for the built-in watchdog timer on the IT8712F
1130 Super I/0 chipset used on many motherboards.
1132 If the driver does not work, then make sure that the game port in
1133 the BIOS is enabled.
1135 To compile this driver as a module, choose M here: the
1136 module will be called it8712f_wdt.
1139 tristate "IT87 Watchdog Timer"
1141 select WATCHDOG_CORE
1143 This is the driver for the hardware watchdog on the ITE IT8607,
1144 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1145 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1146 IT8783 Super I/O chips.
1148 This watchdog simply watches your kernel to make sure it doesn't
1149 freeze, and if it does, it reboots your computer after a certain
1152 To compile this driver as a module, choose M here: the module will
1156 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1157 select WATCHDOG_CORE
1158 depends on X86 && PCI
1160 A software monitoring watchdog and NMI sourcing driver. This driver
1161 will detect lockups and provide a stack trace. This is a driver that
1162 will only load on an HP ProLiant system with a minimum of iLO2 support.
1163 To compile this driver as a module, choose M here: the module will be
1167 tristate "Kontron COM Watchdog Timer"
1168 depends on MFD_KEMPLD
1169 select WATCHDOG_CORE
1171 Support for the PLD watchdog on some Kontron ETX and COMexpress
1172 (ETXexpress) modules
1174 This driver can also be built as a module. If so, the module will be
1177 config HPWDT_NMI_DECODING
1178 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1179 depends on HP_WATCHDOG
1182 When an NMI occurs this feature will make the necessary BIOS calls to
1183 log the cause of the NMI.
1186 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1189 This is a driver for National Semiconductor PC87307/PC97307 hardware
1190 watchdog cards as found on the SC1200. This watchdog is mainly used
1191 for power management purposes and can be used to power down the device
1192 during inactivity periods (includes interrupt activity monitoring).
1194 To compile this driver as a module, choose M here: the
1195 module will be called sc1200wdt.
1197 Most people will say N.
1200 tristate "National Semiconductor SCx200 Watchdog"
1201 depends on SCx200 && PCI
1203 Enable the built-in watchdog timer support on the National
1204 Semiconductor SCx200 processors.
1206 If compiled as a module, it will be called scx200_wdt.
1209 tristate "NS PC87413 watchdog"
1212 This is the driver for the hardware watchdog on the PC87413 chipset
1213 This watchdog simply watches your kernel to make sure it doesn't
1214 freeze, and if it does, it reboots your computer after a certain
1217 To compile this driver as a module, choose M here: the
1218 module will be called pc87413_wdt.
1220 Most people will say N.
1223 tristate "nVidia TCO Timer/Watchdog"
1224 depends on X86 && PCI
1226 Hardware driver for the TCO timer built into the nVidia Hub family
1227 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
1228 watchdog timer that will reboot the machine after its second
1229 expiration. The expiration time can be configured with the
1230 "heartbeat" parameter.
1232 On some motherboards the driver may fail to reset the chipset's
1233 NO_REBOOT flag which prevents the watchdog from rebooting the
1234 machine. If this is the case you will get a kernel message like
1235 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1237 To compile this driver as a module, choose M here: the
1238 module will be called nv_tco.
1241 tristate "RDC R-321x SoC watchdog"
1242 depends on X86_RDC321X || COMPILE_TEST
1245 This is the driver for the built in hardware watchdog
1246 in the RDC R-321x SoC.
1248 To compile this driver as a module, choose M here: the
1249 module will be called rdc321x_wdt.
1252 tristate "SBC-60XX Watchdog Timer"
1255 This driver can be used with the watchdog timer found on some
1256 single board computers, namely the 6010 PII based computer.
1257 It may well work with other cards. It reads port 0x443 to enable
1258 and re-set the watchdog timer, and reads port 0x45 to disable
1259 the watchdog. If you have a card that behave in similar ways,
1260 you can probably make this driver work with your card as well.
1262 You can compile this driver directly into the kernel, or use
1263 it as a module. The module will be called sbc60xxwdt.
1266 tristate "SBC8360 Watchdog Timer"
1270 This is the driver for the hardware watchdog on the SBC8360 Single
1271 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1273 To compile this driver as a module, choose M here: the
1274 module will be called sbc8360.
1276 Most people will say N.
1279 tristate "SBC Nano 7240 Watchdog Timer"
1280 depends on X86_32 && !UML
1282 This is the driver for the hardware watchdog found on the IEI
1283 single board computers EPIC Nano 7240 (and likely others). This
1284 watchdog simply watches your kernel to make sure it doesn't freeze,
1285 and if it does, it reboots your computer after a certain amount of
1288 To compile this driver as a module, choose M here: the
1289 module will be called sbc7240_wdt.
1292 tristate "SMA CPU5 Watchdog"
1296 To compile this driver as a module, choose M here: the
1297 module will be called cpu5wdt.
1299 config SMSC_SCH311X_WDT
1300 tristate "SMSC SCH311X Watchdog Timer"
1303 This is the driver for the hardware watchdog timer on the
1304 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1305 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1308 To compile this driver as a module, choose M here: the
1309 module will be called sch311x_wdt.
1311 config SMSC37B787_WDT
1312 tristate "Winbond SMsC37B787 Watchdog Timer"
1315 This is the driver for the hardware watchdog component on the
1316 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1317 from Vision Systems and maybe others.
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 Usually a userspace daemon will notify the kernel WDT driver that
1324 userspace is still alive, at regular intervals.
1326 To compile this driver as a module, choose M here: the
1327 module will be called smsc37b787_wdt.
1329 Most people will say N.
1332 tristate "TQ-Systems TQMX86 Watchdog Timer"
1335 This is the driver for the hardware watchdog timer in the TQMX86 IO
1336 controller found on some of their ComExpress Modules.
1338 To compile this driver as a module, choose M here; the module
1339 will be called tqmx86_wdt.
1341 Most people will say N.
1344 tristate "VIA Watchdog Timer"
1345 depends on X86 && PCI
1346 select WATCHDOG_CORE
1348 This is the driver for the hardware watchdog timer on VIA
1349 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1351 To compile this driver as a module, choose M here; the module
1352 will be called via_wdt.
1354 Most people will say N.
1357 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1359 select WATCHDOG_CORE
1361 This is the driver for the hardware watchdog on the following
1363 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1376 This watchdog simply watches your kernel to make sure it doesn't
1377 freeze, and if it does, it reboots your computer after a certain
1380 To compile this driver as a module, choose M here: the
1381 module will be called w83627hf_wdt.
1383 Most people will say N.
1386 tristate "W83877F (EMACS) Watchdog Timer"
1389 This is the driver for the hardware watchdog on the W83877F chipset
1390 as used in EMACS PC-104 motherboards (and likely others). This
1391 watchdog simply watches your kernel to make sure it doesn't freeze,
1392 and if it does, it reboots your computer after a certain amount of
1395 To compile this driver as a module, choose M here: the
1396 module will be called w83877f_wdt.
1398 Most people will say N.
1401 tristate "W83977F (PCM-5335) Watchdog Timer"
1404 This is the driver for the hardware watchdog on the W83977F I/O chip
1405 as used in AAEON's PCM-5335 SBC (and likely others). This
1406 watchdog simply watches your kernel to make sure it doesn't freeze,
1407 and if it does, it reboots your computer after a certain amount of
1410 To compile this driver as a module, choose M here: the
1411 module will be called w83977f_wdt.
1414 tristate "ZF MachZ Watchdog"
1417 If you are using a ZF Micro MachZ processor, say Y here, otherwise
1418 N. This is the driver for the watchdog timer built-in on that
1419 processor using ZF-Logic interface. This watchdog simply watches
1420 your kernel to make sure it doesn't freeze, and if it does, it
1421 reboots your computer after a certain amount of time.
1423 To compile this driver as a module, choose M here: the
1424 module will be called machzwd.
1426 config SBC_EPX_C3_WATCHDOG
1427 tristate "Winsystems SBC EPX-C3 watchdog"
1430 This is the driver for the built-in watchdog timer on the EPX-C3
1431 Single-board computer made by Winsystems, Inc.
1433 *Note*: This hardware watchdog is not probeable and thus there
1434 is no way to know if writing to its IO address will corrupt
1435 your system or have any real effect. The only way to be sure
1436 that this driver does what you want is to make sure you
1437 are running it on an EPX-C3 from Winsystems with the watchdog
1438 timer at IO address 0x1ee and 0x1ef. It will write to both those
1439 IO ports. Basically, the assumption is made that if you compile
1440 this driver into your kernel and/or load it as a module, that you
1441 know what you are doing and that you are in fact running on an
1444 To compile this driver as a module, choose M here: the
1445 module will be called sbc_epx_c3.
1447 config INTEL_MEI_WDT
1448 tristate "Intel MEI iAMT Watchdog"
1449 depends on INTEL_MEI && X86
1450 select WATCHDOG_CORE
1452 A device driver for the Intel MEI iAMT watchdog.
1454 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1455 Whenever the OS hangs or crashes, iAMT will send an event
1456 to any subscriber to this event. The watchdog doesn't reset the
1459 To compile this driver as a module, choose M here:
1460 the module will be called mei_wdt.
1463 tristate "NI 903x/913x Watchdog"
1464 depends on X86 && ACPI
1465 select WATCHDOG_CORE
1467 This is the driver for the watchdog timer on the National Instruments
1468 903x/913x real-time controllers.
1470 To compile this driver as a module, choose M here: the module will be
1474 tristate "NIC7018 Watchdog"
1475 depends on X86 && ACPI
1476 select WATCHDOG_CORE
1478 Support for National Instruments NIC7018 Watchdog.
1480 To compile this driver as a module, choose M here: the module will be
1485 config M54xx_WATCHDOG
1486 tristate "MCF54xx watchdog support"
1489 To compile this driver as a module, choose M here: the
1490 module will be called m54xx_wdt.
1492 # MicroBlaze Architecture
1497 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1498 depends on ATH79 || (ARM && COMPILE_TEST)
1500 Hardware driver for the built-in watchdog timer on the Atheros
1501 AR71XX/AR724X/AR913X SoCs.
1504 tristate "Broadcom BCM47xx Watchdog Timer"
1505 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1506 select WATCHDOG_CORE
1508 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1511 tristate "IDT RC32434 SoC Watchdog Timer"
1512 depends on MIKROTIK_RB532
1514 Hardware driver for the IDT RC32434 SoC built-in
1517 To compile this driver as a module, choose M here: the
1518 module will be called rc32434_wdt.
1521 tristate "Indy/I2 Hardware Watchdog"
1522 depends on SGI_HAS_INDYDOG
1524 Hardware driver for the Indy's/I2's watchdog. This is a
1525 watchdog timer that will reboot the machine after a 60 second
1526 timer expired and no process has written to /dev/watchdog during
1530 tristate "Ingenic jz4740 SoC hardware watchdog"
1531 depends on MACH_JZ4740 || MACH_JZ4780
1532 select WATCHDOG_CORE
1534 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1537 tristate "MTX-1 Hardware Watchdog"
1538 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1540 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1541 will reboot the machine after a 100 seconds timer expired.
1544 tristate "PNX833x Hardware Watchdog"
1545 depends on SOC_PNX8335
1548 Hardware driver for the PNX833x's watchdog. This is a
1549 watchdog timer that will reboot the machine after a programmable
1550 timer has expired and no process has written to /dev/watchdog during
1554 tristate "Sibyte SoC hardware watchdog"
1555 depends on CPU_SB1 || (MIPS && COMPILE_TEST)
1557 Watchdog driver for the built in watchdog hardware in Sibyte
1558 SoC processors. There are apparently two watchdog timers
1559 on such processors; this driver supports only the first one,
1560 because currently Linux only supports exporting one watchdog
1563 To compile this driver as a loadable module, choose M here.
1564 The module will be called sb_wdog.
1567 tristate "TI AR7 Watchdog Timer"
1568 depends on AR7 || (MIPS && COMPILE_TEST)
1570 Hardware driver for the TI AR7 Watchdog Timer.
1573 tristate "Toshiba TXx9 Watchdog Timer"
1574 depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
1575 select WATCHDOG_CORE
1577 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1580 tristate "Cavium OCTEON SOC family Watchdog Timer"
1581 depends on CAVIUM_OCTEON_SOC
1583 select WATCHDOG_CORE
1584 select EXPORT_UASM if OCTEON_WDT = m
1586 Hardware driver for OCTEON's on chip watchdog timer.
1587 Enables the watchdog for all cores running Linux. It
1588 installs a NMI handler and pokes the watchdog based on an
1589 interrupt. On first expiration of the watchdog, the
1590 interrupt handler pokes it. The second expiration causes an
1591 NMI that prints a message. The third expiration causes a
1594 When userspace has /dev/watchdog open, no poking is done
1595 from the first interrupt, it is then only poked when the
1599 tristate "Broadcom BCM63xx hardware watchdog"
1602 Watchdog driver for the built in watchdog hardware in Broadcom
1605 To compile this driver as a loadable module, choose M here.
1606 The module will be called bcm63xx_wdt.
1609 tristate "Broadcom BCM2835 hardware watchdog"
1610 depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1611 select WATCHDOG_CORE
1613 Watchdog driver for the built in watchdog hardware in Broadcom
1616 To compile this driver as a loadable module, choose M here.
1617 The module will be called bcm2835_wdt.
1620 tristate "BCM Kona Watchdog"
1621 depends on ARCH_BCM_MOBILE || COMPILE_TEST
1622 select WATCHDOG_CORE
1624 Support for the watchdog timer on the following Broadcom BCM281xx
1625 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1628 Say 'Y' or 'M' here to enable the driver. The module will be called
1631 config BCM_KONA_WDT_DEBUG
1632 bool "DEBUGFS support for BCM Kona Watchdog"
1633 depends on BCM_KONA_WDT || COMPILE_TEST
1635 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1636 access to the driver's internal data structures as well as watchdog
1637 timer hardware registres.
1639 If in doubt, say 'N'.
1642 tristate "BCM7038 Watchdog"
1643 select WATCHDOG_CORE
1644 depends on HAS_IOMEM
1645 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1647 Watchdog driver for the built-in hardware in Broadcom 7038 and
1648 later SoCs used in set-top boxes. BCM7038 was made public
1649 during the 2004 CES, and since then, many Broadcom chips use this
1650 watchdog block, including some cable modem chips.
1653 tristate "Imagination Technologies PDC Watchdog Timer"
1654 depends on HAS_IOMEM
1655 depends on MIPS || COMPILE_TEST
1656 select WATCHDOG_CORE
1658 Driver for Imagination Technologies PowerDown Controller
1661 To compile this driver as a loadable module, choose M here.
1662 The module will be called imgpdc_wdt.
1665 tristate "Lantiq SoC watchdog"
1667 select WATCHDOG_CORE
1669 Hardware driver for the Lantiq SoC Watchdog Timer.
1671 config LOONGSON1_WDT
1672 tristate "Loongson1 SoC hardware watchdog"
1673 depends on MACH_LOONGSON32
1674 select WATCHDOG_CORE
1676 Hardware driver for the Loongson1 SoC Watchdog Timer.
1679 tristate "Ralink SoC watchdog"
1680 select WATCHDOG_CORE
1683 Hardware driver for the Ralink SoC Watchdog Timer.
1686 tristate "Mediatek SoC watchdog"
1687 select WATCHDOG_CORE
1688 depends on SOC_MT7620 || SOC_MT7621
1690 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1693 tristate "Microchip PIC32 hardware watchdog"
1694 select WATCHDOG_CORE
1695 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1697 Watchdog driver for the built in watchdog hardware in a PIC32.
1699 Configuration bits must be set appropriately for the watchdog to be
1700 controlled by this driver.
1702 To compile this driver as a loadable module, choose M here.
1703 The module will be called pic32-wdt.
1706 tristate "Microchip PIC32 Deadman Timer"
1707 select WATCHDOG_CORE
1708 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1710 Watchdog driver for PIC32 instruction fetch counting timer. This specific
1711 timer is typically be used in misson critical and safety critical
1712 applications, where any single failure of the software functionality
1713 and sequencing must be detected.
1715 To compile this driver as a loadable module, choose M here.
1716 The module will be called pic32-dmt.
1718 # PARISC Architecture
1720 # POWERPC Architecture
1723 tristate "GE Watchdog Timer"
1726 Watchdog timer found in a number of GE single board computers.
1729 bool "MPC52xx Watchdog Timer"
1730 depends on PPC_MPC52xx || COMPILE_TEST
1732 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1735 tristate "MPC8xxx Platform Watchdog Timer"
1736 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1737 select WATCHDOG_CORE
1739 This driver is for a SoC level watchdog that exists on some
1740 Freescale PowerPC processors. So far this driver supports:
1745 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1748 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1749 depends on MV64X60 || COMPILE_TEST
1752 tristate "PIKA FPGA Watchdog"
1753 depends on WARP || (PPC64 && COMPILE_TEST)
1756 This enables the watchdog in the PIKA FPGA. Currently used on
1760 tristate "PowerPC Book-E Watchdog Timer"
1761 depends on BOOKE || 4xx
1762 select WATCHDOG_CORE
1764 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1765 MPC85xx SOCs and the IBM PowerPC 440.
1767 Please see Documentation/watchdog/watchdog-api.txt for
1770 config BOOKE_WDT_DEFAULT_TIMEOUT
1771 int "PowerPC Book-E Watchdog Timer Default Timeout"
1772 depends on BOOKE_WDT
1773 default 38 if PPC_FSL_BOOK3E
1774 range 0 63 if PPC_FSL_BOOK3E
1775 default 3 if !PPC_FSL_BOOK3E
1776 range 0 3 if !PPC_FSL_BOOK3E
1778 Select the default watchdog timer period to be used by the PowerPC
1779 Book-E watchdog driver. A watchdog "event" occurs when the bit
1780 position represented by this number transitions from zero to one.
1782 For Freescale Book-E processors, this is a number between 0 and 63.
1783 For other Book-E processors, this is a number between 0 and 3.
1785 The value can be overridden by the wdt_period command-line parameter.
1788 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1789 select WATCHDOG_CORE
1790 depends on GPIOLIB || COMPILE_TEST
1792 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1794 The driver can also be built as a module. If so, the module will be
1797 If unsure select N here.
1799 # PPC64 Architecture
1801 config WATCHDOG_RTAS
1802 tristate "RTAS watchdog"
1805 This driver adds watchdog support for the RTAS watchdog.
1807 To compile this driver as a module, choose M here. The module
1808 will be called wdrtas.
1812 config DIAG288_WATCHDOG
1813 tristate "System z diag288 Watchdog"
1815 select WATCHDOG_CORE
1817 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1818 provide a virtual watchdog timer to their guest that cause a
1819 user define Control Program command to be executed after a
1821 LPAR provides a very similar interface. This driver handles
1824 To compile this driver as a module, choose M here. The module
1825 will be called diag288_wdt.
1827 # SUPERH (sh + sh64) Architecture
1830 tristate "SuperH Watchdog"
1831 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1832 select WATCHDOG_CORE
1834 This driver adds watchdog support for the integrated watchdog in the
1835 SuperH processors. If you have one of these processors and wish
1836 to have watchdog support enabled, say Y, otherwise say N.
1838 As a side note, saying Y here will automatically boost HZ to 1000
1839 so that the timer has a chance to clear the overflow counter. On
1840 slower systems (such as the SH-2 and SH-3) this will likely yield
1841 some performance issues. As such, the WDT should be avoided here
1842 unless it is absolutely necessary.
1844 To compile this driver as a module, choose M here: the
1845 module will be called shwdt.
1847 # SPARC Architecture
1849 # SPARC64 Architecture
1851 config WATCHDOG_CP1XXX
1852 tristate "CP1XXX Hardware Watchdog support"
1853 depends on SPARC64 && PCI
1855 This is the driver for the hardware watchdog timers present on
1856 Sun Microsystems CompactPCI models CP1400 and CP1500.
1858 To compile this driver as a module, choose M here: the
1859 module will be called cpwatchdog.
1861 If you do not have a CompactPCI model CP1400 or CP1500, or
1862 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1863 you should say N to this option.
1866 tristate "RIO Hardware Watchdog support"
1867 depends on SPARC64 && PCI
1869 Say Y here to support the hardware watchdog capability on Sun RIO
1870 machines. The watchdog timeout period is normally one minute but
1871 can be changed with a boot-time parameter.
1873 config WATCHDOG_SUN4V
1874 tristate "Sun4v Watchdog support"
1875 select WATCHDOG_CORE
1878 Say Y here to support the hypervisor watchdog capability embedded
1879 in the SPARC sun4v architecture.
1881 To compile this driver as a module, choose M here. The module will
1882 be called sun4v_wdt.
1884 # XTENSA Architecture
1889 tristate "Xen Watchdog support"
1891 select WATCHDOG_CORE
1893 Say Y here to support the hypervisor watchdog capability provided
1894 by Xen 4.0 and newer. The watchdog timeout period is normally one
1895 minute but can be changed with a boot-time parameter.
1898 tristate "UML watchdog"
1899 depends on UML || COMPILE_TEST
1902 # ISA-based Watchdog Cards
1905 comment "ISA-based Watchdog Cards"
1909 tristate "Berkshire Products ISA-PC Watchdog"
1912 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1913 This card simply watches your kernel to make sure it doesn't freeze,
1914 and if it does, it reboots your computer after a certain amount of
1915 time. This driver is like the WDT501 driver but for different
1916 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1917 watchdog cards can be ordered from <http://www.berkprod.com/>.
1919 To compile this driver as a module, choose M here: the
1920 module will be called pcwd.
1922 Most people will say N.
1925 tristate "Mixcom Watchdog"
1928 This is a driver for the Mixcom hardware watchdog cards. This
1929 watchdog simply watches your kernel to make sure it doesn't freeze,
1930 and if it does, it reboots your computer after a certain amount of
1933 To compile this driver as a module, choose M here: the
1934 module will be called mixcomwd.
1936 Most people will say N.
1939 tristate "WDT Watchdog timer"
1942 If you have a WDT500P or WDT501P watchdog board, say Y here,
1943 otherwise N. It is not possible to probe for this board, which means
1944 that you have to inform the kernel about the IO port and IRQ that
1945 is needed (you can do this via the io and irq parameters)
1947 To compile this driver as a module, choose M here: the
1948 module will be called wdt.
1951 # PCI-based Watchdog Cards
1954 comment "PCI-based Watchdog Cards"
1957 config PCIPCWATCHDOG
1958 tristate "Berkshire Products PCI-PC Watchdog"
1961 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1962 This card simply watches your kernel to make sure it doesn't freeze,
1963 and if it does, it reboots your computer after a certain amount of
1964 time. The card can also monitor the internal temperature of the PC.
1965 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1967 To compile this driver as a module, choose M here: the
1968 module will be called pcwd_pci.
1970 Most people will say N.
1973 tristate "PCI-WDT500/501 Watchdog timer"
1976 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1978 If you have a PCI-WDT501 watchdog board then you can enable the
1979 temperature sensor by setting the type parameter to 501.
1981 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1982 can do this via the tachometer parameter. Only do this if you have a
1983 fan tachometer actually set up.
1985 To compile this driver as a module, choose M here: the
1986 module will be called wdt_pci.
1989 # USB-based Watchdog Cards
1992 comment "USB-based Watchdog Cards"
1995 config USBPCWATCHDOG
1996 tristate "Berkshire Products USB-PC Watchdog"
1999 This is the driver for the Berkshire Products USB-PC Watchdog card.
2000 This card simply watches your kernel to make sure it doesn't freeze,
2001 and if it does, it reboots your computer after a certain amount of
2002 time. The card can also monitor the internal temperature of the PC.
2003 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
2005 To compile this driver as a module, choose M here: the
2006 module will be called pcwd_usb.
2008 Most people will say N.
2010 comment "Watchdog Pretimeout Governors"
2012 config WATCHDOG_PRETIMEOUT_GOV
2013 bool "Enable watchdog pretimeout governors"
2015 The option allows to select watchdog pretimeout governors.
2017 if WATCHDOG_PRETIMEOUT_GOV
2020 prompt "Default Watchdog Pretimeout Governor"
2021 default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
2023 This option selects a default watchdog pretimeout governor.
2024 The governor takes its action, if a watchdog is capable
2025 to report a pretimeout event.
2027 config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP
2029 select WATCHDOG_PRETIMEOUT_GOV_NOOP
2031 Use noop watchdog pretimeout governor by default. If noop
2032 governor is selected by a user, write a short message to
2033 the kernel log buffer and don't do any system changes.
2035 config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
2037 select WATCHDOG_PRETIMEOUT_GOV_PANIC
2039 Use panic watchdog pretimeout governor by default, if
2040 a watchdog pretimeout event happens, consider that
2041 a watchdog feeder is dead and reboot is unavoidable.
2045 config WATCHDOG_PRETIMEOUT_GOV_NOOP
2046 tristate "Noop watchdog pretimeout governor"
2048 Noop watchdog pretimeout governor, only an informational
2049 message is added to kernel log buffer.
2051 config WATCHDOG_PRETIMEOUT_GOV_PANIC
2052 tristate "Panic watchdog pretimeout governor"
2054 Panic watchdog pretimeout governor, on watchdog pretimeout
2055 event put the kernel into panic.
2057 endif # WATCHDOG_PRETIMEOUT_GOV