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
50 bool "Read different watchdog information through sysfs"
52 Say Y here if you want to enable watchdog device status read through
56 # General Watchdog drivers
59 comment "Watchdog Device Drivers"
61 # Architecture Independent
64 tristate "Software watchdog"
67 A software monitoring watchdog. This will fail to reboot your system
68 from some situations that the hardware watchdog will recover
69 from. Equally it's a lot cheaper to install.
71 To compile this driver as a module, choose M here: the
72 module will be called softdog.
74 config DA9052_WATCHDOG
75 tristate "Dialog DA9052 Watchdog"
76 depends on PMIC_DA9052
79 Support for the watchdog in the DA9052 PMIC. Watchdog trigger
82 Say Y here to include support for the DA9052 watchdog.
83 Alternatively say M to compile the driver as a module,
84 which will be called da9052_wdt.
86 config DA9055_WATCHDOG
87 tristate "Dialog Semiconductor DA9055 Watchdog"
91 If you say yes here you get support for watchdog on the Dialog
92 Semiconductor DA9055 PMIC.
94 This driver can also be built as a module. If so, the module
95 will be called da9055_wdt.
97 config DA9063_WATCHDOG
98 tristate "Dialog DA9063 Watchdog"
102 Support for the watchdog in the DA9063 PMIC.
104 This driver can be built as a module. The module name is da9063_wdt.
106 config DA9062_WATCHDOG
107 tristate "Dialog DA9062 Watchdog"
108 depends on MFD_DA9062
111 Support for the watchdog in the DA9062 PMIC.
113 This driver can be built as a module. The module name is da9062_wdt.
116 tristate "Watchdog device controlled through GPIO-line"
120 If you say yes here you get support for watchdog device
121 controlled through GPIO-line.
123 config GPIO_WATCHDOG_ARCH_INITCALL
124 bool "Register the watchdog as early as possible"
125 depends on GPIO_WATCHDOG=y
127 In some situations, the default initcall level (module_init)
128 in not early enough in the boot process to avoid the watchdog
130 If you say yes here, the initcall level would be raised to
134 config MENF21BMC_WATCHDOG
135 tristate "MEN 14F021P00 BMC Watchdog"
136 depends on MFD_MENF21BMC
139 Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
141 This driver can also be built as a module. If so the module
142 will be called menf21bmc_wdt.
144 config TANGOX_WATCHDOG
145 tristate "Sigma Designs SMP86xx/SMP87xx watchdog"
147 depends on ARCH_TANGO || COMPILE_TEST
150 Support for the watchdog in Sigma Designs SMP86xx (tango3)
151 and SMP87xx (tango4) family chips.
153 This driver can be built as a module. The module name is tangox_wdt.
155 config WM831X_WATCHDOG
156 tristate "WM831x watchdog"
157 depends on MFD_WM831X
160 Support for the watchdog in the WM831x AudioPlus PMICs. When
161 the watchdog triggers the system will be reset.
163 config WM8350_WATCHDOG
164 tristate "WM8350 watchdog"
165 depends on MFD_WM8350
168 Support for the watchdog in the WM8350 AudioPlus PMIC. When
169 the watchdog triggers the system will be reset.
171 config XILINX_WATCHDOG
172 tristate "Xilinx Watchdog timer"
176 Watchdog driver for the xps_timebase_wdt ip core.
178 To compile this driver as a module, choose M here: the
179 module will be called of_xilinx_wdt.
181 config ZIIRAVE_WATCHDOG
182 tristate "Zodiac RAVE Watchdog Timer"
186 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
189 To compile this driver as a module, choose M here: the
190 module will be called ziirave_wdt.
196 config ARM_SP805_WATCHDOG
197 tristate "ARM SP805 Watchdog"
198 depends on (ARM || ARM64) && ARM_AMBA
201 ARM Primecell SP805 Watchdog timer. This will reboot your system when
202 the timeout is reached.
204 config ARM_SBSA_WATCHDOG
205 tristate "ARM SBSA Generic Watchdog"
207 depends on ARM_ARCH_TIMER
210 ARM SBSA Generic Watchdog has two stage timeouts:
211 the first signal (WS0) is for alerting the system by interrupt,
212 the second one (WS1) is a real hardware reset.
213 More details: ARM DEN0029B - Server Base System Architecture (SBSA)
215 This driver can operate ARM SBSA Generic Watchdog as a single stage
216 or a two stages watchdog, it depends on the module parameter "action".
218 Note: the maximum timeout in the two stages mode is half of that in
219 the single stage mode.
221 To compile this driver as module, choose M here: The module
222 will be called sbsa_gwdt.
224 config ASM9260_WATCHDOG
225 tristate "Alphascale ASM9260 watchdog"
226 depends on MACH_ASM9260
229 select RESET_CONTROLLER
231 Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your
232 system when the timeout is reached.
234 config AT91RM9200_WATCHDOG
235 tristate "AT91RM9200 watchdog"
236 depends on SOC_AT91RM9200 && MFD_SYSCON
238 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
239 system when the timeout is reached.
241 config AT91SAM9X_WATCHDOG
242 tristate "AT91SAM9X / AT91CAP9 watchdog"
246 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
247 reboot your system when the timeout is reached.
249 config SAMA5D4_WATCHDOG
250 tristate "Atmel SAMA5D4 Watchdog Timer"
254 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
255 Its Watchdog Timer Mode Register can be written more than once.
256 This will reboot your system when the timeout is reached.
258 config CADENCE_WATCHDOG
259 tristate "Cadence Watchdog Timer"
263 Say Y here if you want to include support for the watchdog
264 timer in the Xilinx Zynq.
266 config 21285_WATCHDOG
267 tristate "DC21285 watchdog"
268 depends on FOOTBRIDGE
270 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
271 here if you wish to use this. Alternatively say M to compile the
272 driver as a module, which will be called wdt285.
274 This driver does not work on all machines. In particular, early CATS
275 boards have hardware problems that will cause the machine to simply
276 lock up if the watchdog fires.
278 "If in doubt, leave it out" - say N.
281 tristate "NetWinder WB83C977 watchdog"
282 depends on FOOTBRIDGE && ARCH_NETWINDER
284 Say Y here to include support for the WB977 watchdog included in
285 NetWinder machines. Alternatively say M to compile the driver as
286 a module, which will be called wdt977.
288 Not sure? It's safe to say N.
290 config IXP4XX_WATCHDOG
291 tristate "IXP4xx Watchdog"
292 depends on ARCH_IXP4XX
294 Say Y here if to include support for the watchdog timer
295 in the Intel IXP4xx network processors. This driver can
296 be built as a module by choosing M. The module will
297 be called ixp4xx_wdt.
299 Note: The internal IXP4xx watchdog does a soft CPU reset
300 which doesn't reset any peripherals. There are circumstances
301 where the watchdog will fail to reset the board correctly
302 (e.g., if the boot ROM is in an unreadable state).
304 Say N if you are unsure.
306 config KS8695_WATCHDOG
307 tristate "KS8695 watchdog"
308 depends on ARCH_KS8695
310 Watchdog timer embedded into KS8695 processor. This will reboot your
311 system when the timeout is reached.
313 config HAVE_S3C2410_WATCHDOG
316 This will include watchdog timer support for Samsung SoCs. If
317 you want to include watchdog support for any machine, kindly
318 select this in the respective mach-XXXX/Kconfig file.
320 config S3C2410_WATCHDOG
321 tristate "S3C2410 Watchdog"
322 depends on HAVE_S3C2410_WATCHDOG
324 select MFD_SYSCON if ARCH_EXYNOS5
326 Watchdog timer block in the Samsung SoCs. This will reboot
327 the system when the timer expires with the watchdog enabled.
329 The driver is limited by the speed of the system's PCLK
330 signal, so with reasonably fast systems (PCLK around 50-66MHz)
331 then watchdog intervals of over approximately 20seconds are
334 The driver can be built as a module by choosing M, and will
335 be called s3c2410_wdt
337 config SA1100_WATCHDOG
338 tristate "SA1100/PXA2xx watchdog"
339 depends on ARCH_SA1100 || ARCH_PXA
341 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
342 reboot your system when timeout is reached.
344 NOTE: once enabled, this timer cannot be disabled.
346 To compile this driver as a module, choose M here: the
347 module will be called sa1100_wdt.
350 tristate "Synopsys DesignWare watchdog"
354 Say Y here if to include support for the Synopsys DesignWare
355 watchdog timer found in many chips.
356 To compile this driver as a module, choose M here: the
357 module will be called dw_wdt.
359 config EP93XX_WATCHDOG
360 tristate "EP93xx Watchdog"
361 depends on ARCH_EP93XX
364 Say Y here if to include support for the watchdog timer
365 embedded in the Cirrus Logic EP93xx family of devices.
367 To compile this driver as a module, choose M here: the
368 module will be called ep93xx_wdt.
371 tristate "OMAP Watchdog"
372 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
375 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
376 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
378 config PNX4008_WATCHDOG
379 tristate "LPC32XX Watchdog"
380 depends on ARCH_LPC32XX
383 Say Y here if to include support for the watchdog timer
384 in the LPC32XX processor.
385 This driver can be built as a module by choosing M. The module
386 will be called pnx4008_wdt.
388 Say N if you are unsure.
391 tristate "IOP Watchdog"
392 depends on ARCH_IOP13XX
393 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
395 Say Y here if to include support for the watchdog timer
396 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
397 be built as a module by choosing M. The module will
400 Note: The IOP13XX watchdog does an Internal Bus Reset which will
401 affect both cores and the peripherals of the IOP. The ATU-X
402 and/or ATUe configuration registers will remain intact, but if
403 operating as an Root Complex and/or Central Resource, the PCI-X
404 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
406 config DAVINCI_WATCHDOG
407 tristate "DaVinci watchdog"
408 depends on ARCH_DAVINCI || ARCH_KEYSTONE
411 Say Y here if to include support for the watchdog timer
412 in the DaVinci DM644x/DM646x or Keystone processors.
413 To compile this driver as a module, choose M here: the
414 module will be called davinci_wdt.
416 NOTE: once enabled, this timer cannot be disabled.
417 Say N if you are unsure.
419 config ORION_WATCHDOG
420 tristate "Orion watchdog"
421 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU
425 Say Y here if to include support for the watchdog timer
426 in the Marvell Orion5x and Kirkwood ARM SoCs.
427 To compile this driver as a module, choose M here: the
428 module will be called orion_wdt.
430 config RN5T618_WATCHDOG
431 tristate "Ricoh RN5T618 watchdog"
432 depends on MFD_RN5T618
435 If you say yes here you get support for watchdog on the Ricoh
438 This driver can also be built as a module. If so, the module
439 will be called rn5t618_wdt.
441 config SUNXI_WATCHDOG
442 tristate "Allwinner SoCs watchdog support"
443 depends on ARCH_SUNXI
446 Say Y here to include support for the watchdog timer
448 To compile this driver as a module, choose M here: the
449 module will be called sunxi_wdt.
451 config COH901327_WATCHDOG
452 bool "ST-Ericsson COH 901 327 watchdog"
454 default y if MACH_U300
457 Say Y here to include Watchdog timer support for the
458 watchdog embedded into the ST-Ericsson U300 series platforms.
459 This watchdog is used to reset the system and thus cannot be
460 compiled as a module.
462 config TWL4030_WATCHDOG
463 tristate "TWL4030 Watchdog"
464 depends on TWL4030_CORE
467 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
468 watchdog timer support for TWL4030 chips.
470 config STMP3XXX_RTC_WATCHDOG
471 tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
472 depends on RTC_DRV_STMP
475 Say Y here to include support for the watchdog timer inside
476 the RTC for the STMP37XX/378X or i.MX23/28 SoC.
477 To compile this driver as a module, choose M here: the
478 module will be called stmp3xxx_rtc_wdt.
480 config NUC900_WATCHDOG
481 tristate "Nuvoton NUC900 watchdog"
482 depends on ARCH_W90X900
484 Say Y here if to include support for the watchdog timer
485 for the Nuvoton NUC900 series SoCs.
486 To compile this driver as a module, choose M here: the
487 module will be called nuc900_wdt.
489 config TS4800_WATCHDOG
490 tristate "TS-4800 Watchdog"
491 depends on HAS_IOMEM && OF
492 depends on SOC_IMX51 || COMPILE_TEST
496 Technologic Systems TS-4800 has watchdog timer implemented in
497 an external FPGA. Say Y here if you want to support for the
498 watchdog timer on TS-4800 board.
500 config TS72XX_WATCHDOG
501 tristate "TS-72XX SBC Watchdog"
502 depends on MACH_TS72XX
504 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
505 watchdog timer implemented in a external CPLD chip. Say Y here
506 if you want to support for the watchdog timer on TS-72XX boards.
508 To compile this driver as a module, choose M here: the
509 module will be called ts72xx_wdt.
511 config MAX63XX_WATCHDOG
512 tristate "Max63xx watchdog"
516 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
518 config MAX77620_WATCHDOG
519 tristate "Maxim Max77620 Watchdog Timer"
520 depends on MFD_MAX77620
522 This is the driver for the Max77620 watchdog timer.
523 Say 'Y' here to enable the watchdog timer support for
524 MAX77620 chips. To compile this driver as a module,
525 choose M here: the module will be called max77620_wdt.
528 tristate "IMX2+ Watchdog"
529 depends on ARCH_MXC || ARCH_LAYERSCAPE
533 This is the driver for the hardware watchdog
534 on the Freescale IMX2 and later processors.
535 If you have one of these processors and wish to have
536 watchdog support enabled, say Y, otherwise say N.
538 To compile this driver as a module, choose M here: the
539 module will be called imx2_wdt.
541 config UX500_WATCHDOG
542 tristate "ST-Ericsson Ux500 watchdog"
543 depends on MFD_DB8500_PRCMU
547 Say Y here to include Watchdog timer support for the watchdog
548 existing in the prcmu of ST-Ericsson Ux500 series platforms.
550 To compile this driver as a module, choose M here: the
551 module will be called ux500_wdt.
554 tristate "Retu watchdog"
558 Retu watchdog driver for Nokia Internet Tablets (770, N800,
559 N810). At least on N800 the watchdog cannot be disabled, so
560 this driver is essential and you should enable it.
562 To compile this driver as a module, choose M here: the
563 module will be called retu_wdt.
566 tristate "MOXART watchdog"
567 depends on ARCH_MOXART
569 Say Y here to include Watchdog timer support for the watchdog
570 existing on the MOXA ART SoC series platforms.
572 To compile this driver as a module, choose M here: the
573 module will be called moxart_wdt.
575 config SIRFSOC_WATCHDOG
576 tristate "SiRFSOC watchdog"
581 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
582 the watchdog triggers the system will be reset.
584 config ST_LPC_WATCHDOG
585 tristate "STMicroelectronics LPC Watchdog"
590 Say Y here to include STMicroelectronics Low Power Controller
591 (LPC) based Watchdog timer support.
593 To compile this driver as a module, choose M here: the
594 module will be called st_lpc_wdt.
596 config TEGRA_WATCHDOG
597 tristate "Tegra watchdog"
598 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
601 Say Y here to include support for the watchdog timer
602 embedded in NVIDIA Tegra SoCs.
604 To compile this driver as a module, choose M here: the
605 module will be called tegra_wdt.
608 tristate "QCOM watchdog"
613 Say Y here to include Watchdog timer support for the watchdog found
614 on QCOM chipsets. Currently supported targets are the MSM8960,
615 APQ8064, and IPQ8064.
617 To compile this driver as a module, choose M here: the
618 module will be called qcom_wdt.
620 config MESON_WATCHDOG
621 tristate "Amlogic Meson SoCs watchdog support"
622 depends on ARCH_MESON
625 Say Y here to include support for the watchdog timer
626 in Amlogic Meson SoCs.
627 To compile this driver as a module, choose M here: the
628 module will be called meson_wdt.
630 config MEDIATEK_WATCHDOG
631 tristate "Mediatek SoCs watchdog support"
632 depends on ARCH_MEDIATEK
635 Say Y here to include support for the watchdog timer
637 To compile this driver as a module, choose M here: the
638 module will be called mtk_wdt.
640 config DIGICOLOR_WATCHDOG
641 tristate "Conexant Digicolor SoCs watchdog support"
642 depends on ARCH_DIGICOLOR
645 Say Y here to include support for the watchdog timer
646 in Conexant Digicolor SoCs.
647 To compile this driver as a module, choose M here: the
648 module will be called digicolor_wdt.
650 config LPC18XX_WATCHDOG
651 tristate "LPC18xx/43xx Watchdog"
652 depends on ARCH_LPC18XX || COMPILE_TEST
656 Say Y here if to include support for the watchdog timer
657 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
659 To compile this driver as a module, choose M here: the
660 module will be called lpc18xx_wdt.
662 config ATLAS7_WATCHDOG
663 tristate "CSRatlas7 watchdog"
664 depends on ARCH_ATLAS7
666 Say Y here to include Watchdog timer support for the watchdog
667 existing on the CSRatlas7 series platforms.
669 To compile this driver as a module, choose M here: the
670 module will be called atlas7_wdt.
673 tristate "Renesas WDT Watchdog"
674 depends on ARCH_RENESAS || COMPILE_TEST
677 This driver adds watchdog support for the integrated watchdogs in the
678 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
680 config ASPEED_WATCHDOG
681 tristate "Aspeed 2400 watchdog support"
682 depends on ARCH_ASPEED || COMPILE_TEST
685 Say Y here to include support for the watchdog timer
688 This driver is required to reboot the SoC.
690 To compile this driver as a module, choose M here: the
691 module will be called aspeed_wdt.
695 config AT32AP700X_WDT
696 tristate "AT32AP700x watchdog"
697 depends on CPU_AT32AP700X
699 Watchdog timer embedded into AT32AP700x devices. This will reboot
700 your system when the timeout is reached.
702 # BLACKFIN Architecture
705 tristate "Blackfin On-Chip Watchdog Timer"
708 If you say yes here you will get support for the Blackfin On-Chip
709 Watchdog Timer. If you have one of these processors and wish to
710 have watchdog support enabled, say Y, otherwise say N.
712 To compile this driver as a module, choose M here: the
713 module will be called bfin_wdt.
719 # X86 (i386 + ia64 + x86_64) Architecture
722 tristate "Acquire SBC Watchdog Timer"
725 This is the driver for the hardware watchdog on Single Board
726 Computers produced by Acquire Inc (and others). This watchdog
727 simply watches your kernel to make sure it doesn't freeze, and if
728 it does, it reboots your computer after a certain amount of time.
730 To compile this driver as a module, choose M here: the
731 module will be called acquirewdt.
733 Most people will say N.
736 tristate "Advantech SBC Watchdog Timer"
739 If you are configuring a Linux kernel for the Advantech single-board
740 computer, say `Y' here to support its built-in watchdog timer
741 feature. More information can be found at
742 <http://www.advantech.com.tw/products/>
745 tristate "ALi M1535 PMU Watchdog Timer"
746 depends on X86 && PCI
748 This is the driver for the hardware watchdog on the ALi M1535 PMU.
750 To compile this driver as a module, choose M here: the
751 module will be called alim1535_wdt.
753 Most people will say N.
756 tristate "ALi M7101 PMU Computer Watchdog"
759 This is the driver for the hardware watchdog on the ALi M7101 PMU
760 as used in the x86 Cobalt servers and also found in some
761 SPARC Netra servers too.
763 To compile this driver as a module, choose M here: the
764 module will be called alim7101_wdt.
766 Most people will say N.
769 tristate "WinSystems EBC-C384 Watchdog Timer"
770 depends on X86 && ISA_BUS_API
773 Enables watchdog timer support for the watchdog timer on the
774 WinSystems EBC-C384 motherboard. The timeout may be configured via
775 the timeout module parameter.
778 tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
781 This is the driver for the hardware watchdog on the Fintek
782 F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
784 You can compile this driver directly into the kernel, or use
785 it as a module. The module will be called f71808e_wdt.
788 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
789 depends on X86 && PCI
791 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
792 (Total Cost of Ownership) timer is a watchdog timer that will reboot
793 the machine after its expiration. The expiration time can be
794 configured with the "heartbeat" parameter.
796 To compile this driver as a module, choose M here: the
797 module will be called sp5100_tco.
800 tristate "AMD Geode CS5535/CS5536 Watchdog"
801 depends on CS5535_MFGPT
803 This driver enables a watchdog capability built into the
804 CS5535/CS5536 companion chips for the AMD Geode GX and LX
805 processors. This watchdog watches your kernel to make sure
806 it doesn't freeze, and if it does, it reboots your computer after
807 a certain amount of time.
809 You can compile this driver directly into the kernel, or use
810 it as a module. The module will be called geodewdt.
813 tristate "AMD Elan SC520 processor Watchdog"
816 This is the driver for the hardware watchdog built in to the
817 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
818 This watchdog simply watches your kernel to make sure it doesn't
819 freeze, and if it does, it reboots your computer after a certain
822 You can compile this driver directly into the kernel, or use
823 it as a module. The module will be called sc520_wdt.
825 config SBC_FITPC2_WATCHDOG
826 tristate "Compulab SBC-FITPC2 watchdog"
829 This is the driver for the built-in watchdog timer on the fit-PC2,
830 fit-PC2i, CM-iAM single-board computers made by Compulab.
832 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
833 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
835 Entering BIOS setup temporary disables watchdog operation regardless to current state,
836 so system will not be restarted while user in BIOS setup.
838 Once watchdog was enabled the system will be restarted every
839 "Watchdog Timer Value" period, so to prevent it user can restart or
840 disable the watchdog.
842 To compile this driver as a module, choose M here: the
843 module will be called sbc_fitpc2_wdt.
845 Most people will say N.
848 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
851 Enable support for the watchdog timer on the Eurotech CPU-1220 and
852 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
853 information are at <http://www.eurotech.it/>.
856 tristate "IB700 SBC Watchdog Timer"
859 This is the driver for the hardware watchdog on the IB700 Single
860 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
861 simply watches your kernel to make sure it doesn't freeze, and if
862 it does, it reboots your computer after a certain amount of time.
864 This driver is like the WDT501 driver but for slightly different hardware.
866 To compile this driver as a module, choose M here: the
867 module will be called ib700wdt.
869 Most people will say N.
872 tristate "IBM Automatic Server Restart"
875 This is the driver for the IBM Automatic Server Restart watchdog
876 timer built-in into some eServer xSeries machines.
878 To compile this driver as a module, choose M here: the
879 module will be called ibmasr.
882 tristate "ICP Single Board Computer Watchdog Timer"
885 This is a driver for the hardware watchdog on the ICP Single
886 Board Computer. This driver is working on (at least) the following
887 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
889 To compile this driver as a module, choose M here: the
890 module will be called wafer5823wdt.
893 tristate "Intel 6300ESB Timer/Watchdog"
896 Hardware driver for the watchdog timer built into the Intel
897 6300ESB controller hub.
899 To compile this driver as a module, choose M here: the
900 module will be called i6300esb.
903 tristate "Intel Atom E6xx Watchdog"
904 depends on X86 && PCI
909 Hardware driver for the watchdog timer built into the Intel
910 Atom E6XX (TunnelCreek) processor.
912 To compile this driver as a module, choose M here: the
913 module will be called ie6xx_wdt.
915 config INTEL_SCU_WATCHDOG
916 bool "Intel SCU Watchdog for Mobile Platforms"
917 depends on X86_INTEL_MID
919 Hardware driver for the watchdog time built into the Intel SCU
920 for Intel Mobile Platforms.
922 To compile this driver as a module, choose M here.
924 config INTEL_MID_WATCHDOG
925 tristate "Intel MID Watchdog Timer"
926 depends on X86_INTEL_MID
929 Watchdog timer driver built into the Intel SCU for Intel MID
932 This driver currently supports only the watchdog evolution
933 implementation in SCU, available for Merrifield generation.
935 To compile this driver as a module, choose M here.
938 tristate "Intel TCO Timer/Watchdog"
939 depends on (X86 || IA64) && PCI
941 depends on I2C || I2C=n
942 select LPC_ICH if !EXPERT
943 select I2C_I801 if !EXPERT && I2C
945 Hardware driver for the intel TCO timer based watchdog devices.
946 These drivers are included in the Intel 82801 I/O Controller
947 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
950 The TCO (Total Cost of Ownership) timer is a watchdog timer
951 that will reboot the machine after its second expiration. The
952 expiration time can be configured with the "heartbeat" parameter.
954 On some motherboards the driver may fail to reset the chipset's
955 NO_REBOOT flag which prevents the watchdog from rebooting the
956 machine. If this is the case you will get a kernel message like
957 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
959 To compile this driver as a module, choose M here: the
960 module will be called iTCO_wdt.
962 config ITCO_VENDOR_SUPPORT
963 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
966 Add vendor specific support to the intel TCO timer based watchdog
967 devices. At this moment we only have additional support for some
968 SuperMicro Inc. motherboards.
971 tristate "IT8712F (Smart Guardian) Watchdog Timer"
974 This is the driver for the built-in watchdog timer on the IT8712F
975 Super I/0 chipset used on many motherboards.
977 If the driver does not work, then make sure that the game port in
980 To compile this driver as a module, choose M here: the
981 module will be called it8712f_wdt.
984 tristate "IT87 Watchdog Timer"
987 This is the driver for the hardware watchdog on the ITE IT8702,
988 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728
991 If the driver does not work, then make sure that the game port in
994 This watchdog simply watches your kernel to make sure it doesn't
995 freeze, and if it does, it reboots your computer after a certain
998 To compile this driver as a module, choose M here: the module will
1002 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1003 depends on X86 && PCI
1005 A software monitoring watchdog and NMI sourcing driver. This driver
1006 will detect lockups and provide a stack trace. This is a driver that
1007 will only load on an HP ProLiant system with a minimum of iLO2 support.
1008 To compile this driver as a module, choose M here: the module will be
1012 tristate "Kontron COM Watchdog Timer"
1013 depends on MFD_KEMPLD
1014 select WATCHDOG_CORE
1016 Support for the PLD watchdog on some Kontron ETX and COMexpress
1017 (ETXexpress) modules
1019 This driver can also be built as a module. If so, the module will be
1022 config HPWDT_NMI_DECODING
1023 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1024 depends on HP_WATCHDOG
1027 When an NMI occurs this feature will make the necessary BIOS calls to
1028 log the cause of the NMI.
1031 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1034 This is a driver for National Semiconductor PC87307/PC97307 hardware
1035 watchdog cards as found on the SC1200. This watchdog is mainly used
1036 for power management purposes and can be used to power down the device
1037 during inactivity periods (includes interrupt activity monitoring).
1039 To compile this driver as a module, choose M here: the
1040 module will be called sc1200wdt.
1042 Most people will say N.
1045 tristate "National Semiconductor SCx200 Watchdog"
1046 depends on SCx200 && PCI
1048 Enable the built-in watchdog timer support on the National
1049 Semiconductor SCx200 processors.
1051 If compiled as a module, it will be called scx200_wdt.
1054 tristate "NS PC87413 watchdog"
1057 This is the driver for the hardware watchdog on the PC87413 chipset
1058 This watchdog simply watches your kernel to make sure it doesn't
1059 freeze, and if it does, it reboots your computer after a certain
1062 To compile this driver as a module, choose M here: the
1063 module will be called pc87413_wdt.
1065 Most people will say N.
1068 tristate "nVidia TCO Timer/Watchdog"
1069 depends on X86 && PCI
1071 Hardware driver for the TCO timer built into the nVidia Hub family
1072 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
1073 watchdog timer that will reboot the machine after its second
1074 expiration. The expiration time can be configured with the
1075 "heartbeat" parameter.
1077 On some motherboards the driver may fail to reset the chipset's
1078 NO_REBOOT flag which prevents the watchdog from rebooting the
1079 machine. If this is the case you will get a kernel message like
1080 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1082 To compile this driver as a module, choose M here: the
1083 module will be called nv_tco.
1086 tristate "RDC R-321x SoC watchdog"
1087 depends on X86_RDC321X
1089 This is the driver for the built in hardware watchdog
1090 in the RDC R-321x SoC.
1092 To compile this driver as a module, choose M here: the
1093 module will be called rdc321x_wdt.
1096 tristate "SBC-60XX Watchdog Timer"
1099 This driver can be used with the watchdog timer found on some
1100 single board computers, namely the 6010 PII based computer.
1101 It may well work with other cards. It reads port 0x443 to enable
1102 and re-set the watchdog timer, and reads port 0x45 to disable
1103 the watchdog. If you have a card that behave in similar ways,
1104 you can probably make this driver work with your card as well.
1106 You can compile this driver directly into the kernel, or use
1107 it as a module. The module will be called sbc60xxwdt.
1110 tristate "SBC8360 Watchdog Timer"
1114 This is the driver for the hardware watchdog on the SBC8360 Single
1115 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1117 To compile this driver as a module, choose M here: the
1118 module will be called sbc8360.
1120 Most people will say N.
1123 tristate "SBC Nano 7240 Watchdog Timer"
1124 depends on X86_32 && !UML
1126 This is the driver for the hardware watchdog found on the IEI
1127 single board computers EPIC Nano 7240 (and likely others). This
1128 watchdog simply watches your kernel to make sure it doesn't freeze,
1129 and if it does, it reboots your computer after a certain amount of
1132 To compile this driver as a module, choose M here: the
1133 module will be called sbc7240_wdt.
1136 tristate "SMA CPU5 Watchdog"
1140 To compile this driver as a module, choose M here: the
1141 module will be called cpu5wdt.
1143 config SMSC_SCH311X_WDT
1144 tristate "SMSC SCH311X Watchdog Timer"
1147 This is the driver for the hardware watchdog timer on the
1148 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1149 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1152 To compile this driver as a module, choose M here: the
1153 module will be called sch311x_wdt.
1155 config SMSC37B787_WDT
1156 tristate "Winbond SMsC37B787 Watchdog Timer"
1159 This is the driver for the hardware watchdog component on the
1160 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1161 from Vision Systems and maybe others.
1163 This watchdog simply watches your kernel to make sure it doesn't
1164 freeze, and if it does, it reboots your computer after a certain
1167 Usually a userspace daemon will notify the kernel WDT driver that
1168 userspace is still alive, at regular intervals.
1170 To compile this driver as a module, choose M here: the
1171 module will be called smsc37b787_wdt.
1173 Most people will say N.
1176 tristate "VIA Watchdog Timer"
1177 depends on X86 && PCI
1178 select WATCHDOG_CORE
1180 This is the driver for the hardware watchdog timer on VIA
1181 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1183 To compile this driver as a module, choose M here; the module
1184 will be called via_wdt.
1186 Most people will say N.
1189 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1191 select WATCHDOG_CORE
1193 This is the driver for the hardware watchdog on the following
1195 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1208 This watchdog simply watches your kernel to make sure it doesn't
1209 freeze, and if it does, it reboots your computer after a certain
1212 To compile this driver as a module, choose M here: the
1213 module will be called w83627hf_wdt.
1215 Most people will say N.
1218 tristate "W83877F (EMACS) Watchdog Timer"
1221 This is the driver for the hardware watchdog on the W83877F chipset
1222 as used in EMACS PC-104 motherboards (and likely others). This
1223 watchdog simply watches your kernel to make sure it doesn't freeze,
1224 and if it does, it reboots your computer after a certain amount of
1227 To compile this driver as a module, choose M here: the
1228 module will be called w83877f_wdt.
1230 Most people will say N.
1233 tristate "W83977F (PCM-5335) Watchdog Timer"
1236 This is the driver for the hardware watchdog on the W83977F I/O chip
1237 as used in AAEON's PCM-5335 SBC (and likely others). This
1238 watchdog simply watches your kernel to make sure it doesn't freeze,
1239 and if it does, it reboots your computer after a certain amount of
1242 To compile this driver as a module, choose M here: the
1243 module will be called w83977f_wdt.
1246 tristate "ZF MachZ Watchdog"
1249 If you are using a ZF Micro MachZ processor, say Y here, otherwise
1250 N. This is the driver for the watchdog timer built-in on that
1251 processor using ZF-Logic interface. This watchdog simply watches
1252 your kernel to make sure it doesn't freeze, and if it does, it
1253 reboots your computer after a certain amount of time.
1255 To compile this driver as a module, choose M here: the
1256 module will be called machzwd.
1258 config SBC_EPX_C3_WATCHDOG
1259 tristate "Winsystems SBC EPX-C3 watchdog"
1262 This is the driver for the built-in watchdog timer on the EPX-C3
1263 Single-board computer made by Winsystems, Inc.
1265 *Note*: This hardware watchdog is not probeable and thus there
1266 is no way to know if writing to its IO address will corrupt
1267 your system or have any real effect. The only way to be sure
1268 that this driver does what you want is to make sure you
1269 are running it on an EPX-C3 from Winsystems with the watchdog
1270 timer at IO address 0x1ee and 0x1ef. It will write to both those
1271 IO ports. Basically, the assumption is made that if you compile
1272 this driver into your kernel and/or load it as a module, that you
1273 know what you are doing and that you are in fact running on an
1276 To compile this driver as a module, choose M here: the
1277 module will be called sbc_epx_c3.
1279 config INTEL_MEI_WDT
1280 tristate "Intel MEI iAMT Watchdog"
1281 depends on INTEL_MEI && X86
1282 select WATCHDOG_CORE
1284 A device driver for the Intel MEI iAMT watchdog.
1286 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1287 Whenever the OS hangs or crashes, iAMT will send an event
1288 to any subscriber to this event. The watchdog doesn't reset the
1291 To compile this driver as a module, choose M here:
1292 the module will be called mei_wdt.
1295 tristate "NI 903x/913x Watchdog"
1296 depends on X86 && ACPI
1297 select WATCHDOG_CORE
1299 This is the driver for the watchdog timer on the National Instruments
1300 903x/913x real-time controllers.
1302 To compile this driver as a module, choose M here: the module will be
1309 config M54xx_WATCHDOG
1310 tristate "MCF54xx watchdog support"
1313 To compile this driver as a module, choose M here: the
1314 module will be called m54xx_wdt.
1316 # MicroBlaze Architecture
1321 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1324 Hardware driver for the built-in watchdog timer on the Atheros
1325 AR71XX/AR724X/AR913X SoCs.
1328 tristate "Broadcom BCM47xx Watchdog Timer"
1329 depends on BCM47XX || ARCH_BCM_5301X
1330 select WATCHDOG_CORE
1332 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1335 tristate "IDT RC32434 SoC Watchdog Timer"
1336 depends on MIKROTIK_RB532
1338 Hardware driver for the IDT RC32434 SoC built-in
1341 To compile this driver as a module, choose M here: the
1342 module will be called rc32434_wdt.
1345 tristate "Indy/I2 Hardware Watchdog"
1346 depends on SGI_HAS_INDYDOG
1348 Hardware driver for the Indy's/I2's watchdog. This is a
1349 watchdog timer that will reboot the machine after a 60 second
1350 timer expired and no process has written to /dev/watchdog during
1354 tristate "Ingenic jz4740 SoC hardware watchdog"
1355 depends on MACH_JZ4740
1356 select WATCHDOG_CORE
1358 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1361 tristate "MTX-1 Hardware Watchdog"
1362 depends on MIPS_MTX1
1364 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1365 will reboot the machine after a 100 seconds timer expired.
1368 tristate "PNX833x Hardware Watchdog"
1369 depends on SOC_PNX8335
1371 Hardware driver for the PNX833x's watchdog. This is a
1372 watchdog timer that will reboot the machine after a programmable
1373 timer has expired and no process has written to /dev/watchdog during
1377 tristate "Sibyte SoC hardware watchdog"
1380 Watchdog driver for the built in watchdog hardware in Sibyte
1381 SoC processors. There are apparently two watchdog timers
1382 on such processors; this driver supports only the first one,
1383 because currently Linux only supports exporting one watchdog
1386 To compile this driver as a loadable module, choose M here.
1387 The module will be called sb_wdog.
1390 tristate "TI AR7 Watchdog Timer"
1393 Hardware driver for the TI AR7 Watchdog Timer.
1396 tristate "Toshiba TXx9 Watchdog Timer"
1397 depends on CPU_TX39XX || CPU_TX49XX
1398 select WATCHDOG_CORE
1400 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1403 tristate "Cavium OCTEON SOC family Watchdog Timer"
1404 depends on CAVIUM_OCTEON_SOC
1406 select WATCHDOG_CORE
1407 select EXPORT_UASM if OCTEON_WDT = m
1409 Hardware driver for OCTEON's on chip watchdog timer.
1410 Enables the watchdog for all cores running Linux. It
1411 installs a NMI handler and pokes the watchdog based on an
1412 interrupt. On first expiration of the watchdog, the
1413 interrupt handler pokes it. The second expiration causes an
1414 NMI that prints a message. The third expiration causes a
1417 When userspace has /dev/watchdog open, no poking is done
1418 from the first interrupt, it is then only poked when the
1422 tristate "Broadcom BCM63xx hardware watchdog"
1425 Watchdog driver for the built in watchdog hardware in Broadcom
1428 To compile this driver as a loadable module, choose M here.
1429 The module will be called bcm63xx_wdt.
1432 tristate "Broadcom BCM2835 hardware watchdog"
1433 depends on ARCH_BCM2835
1434 select WATCHDOG_CORE
1436 Watchdog driver for the built in watchdog hardware in Broadcom
1439 To compile this driver as a loadable module, choose M here.
1440 The module will be called bcm2835_wdt.
1443 tristate "BCM Kona Watchdog"
1444 depends on ARCH_BCM_MOBILE
1445 select WATCHDOG_CORE
1447 Support for the watchdog timer on the following Broadcom BCM281xx
1448 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1451 Say 'Y' or 'M' here to enable the driver. The module will be called
1454 config BCM_KONA_WDT_DEBUG
1455 bool "DEBUGFS support for BCM Kona Watchdog"
1456 depends on BCM_KONA_WDT
1458 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1459 access to the driver's internal data structures as well as watchdog
1460 timer hardware registres.
1462 If in doubt, say 'N'.
1465 tristate "BCM7038 Watchdog"
1466 select WATCHDOG_CORE
1467 depends on HAS_IOMEM
1468 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1470 Watchdog driver for the built-in hardware in Broadcom 7038 and
1471 later SoCs used in set-top boxes. BCM7038 was made public
1472 during the 2004 CES, and since then, many Broadcom chips use this
1473 watchdog block, including some cable modem chips.
1476 tristate "Imagination Technologies PDC Watchdog Timer"
1477 depends on HAS_IOMEM
1478 depends on METAG || MIPS || COMPILE_TEST
1479 select WATCHDOG_CORE
1481 Driver for Imagination Technologies PowerDown Controller
1484 To compile this driver as a loadable module, choose M here.
1485 The module will be called imgpdc_wdt.
1488 tristate "Lantiq SoC watchdog"
1491 Hardware driver for the Lantiq SoC Watchdog Timer.
1494 tristate "Ralink SoC watchdog"
1495 select WATCHDOG_CORE
1498 Hardware driver for the Ralink SoC Watchdog Timer.
1501 tristate "Mediatek SoC watchdog"
1502 select WATCHDOG_CORE
1503 depends on SOC_MT7620 || SOC_MT7621
1505 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1508 tristate "Microchip PIC32 hardware watchdog"
1509 select WATCHDOG_CORE
1510 depends on MACH_PIC32
1512 Watchdog driver for the built in watchdog hardware in a PIC32.
1514 Configuration bits must be set appropriately for the watchdog to be
1515 controlled by this driver.
1517 To compile this driver as a loadable module, choose M here.
1518 The module will be called pic32-wdt.
1521 tristate "Microchip PIC32 Deadman Timer"
1522 select WATCHDOG_CORE
1523 depends on MACH_PIC32
1525 Watchdog driver for PIC32 instruction fetch counting timer. This specific
1526 timer is typically be used in misson critical and safety critical
1527 applications, where any single failure of the software functionality
1528 and sequencing must be detected.
1530 To compile this driver as a loadable module, choose M here.
1531 The module will be called pic32-dmt.
1533 # PARISC Architecture
1535 # POWERPC Architecture
1538 tristate "GE Watchdog Timer"
1541 Watchdog timer found in a number of GE single board computers.
1544 bool "MPC52xx Watchdog Timer"
1545 depends on PPC_MPC52xx
1547 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1550 tristate "MPC8xxx Platform Watchdog Timer"
1551 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1552 select WATCHDOG_CORE
1554 This driver is for a SoC level watchdog that exists on some
1555 Freescale PowerPC processors. So far this driver supports:
1560 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1563 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1567 tristate "PIKA FPGA Watchdog"
1571 This enables the watchdog in the PIKA FPGA. Currently used on
1575 tristate "PowerPC Book-E Watchdog Timer"
1576 depends on BOOKE || 4xx
1577 select WATCHDOG_CORE
1579 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1580 MPC85xx SOCs and the IBM PowerPC 440.
1582 Please see Documentation/watchdog/watchdog-api.txt for
1585 config BOOKE_WDT_DEFAULT_TIMEOUT
1586 int "PowerPC Book-E Watchdog Timer Default Timeout"
1587 depends on BOOKE_WDT
1588 default 38 if PPC_FSL_BOOK3E
1589 range 0 63 if PPC_FSL_BOOK3E
1590 default 3 if !PPC_FSL_BOOK3E
1591 range 0 3 if !PPC_FSL_BOOK3E
1593 Select the default watchdog timer period to be used by the PowerPC
1594 Book-E watchdog driver. A watchdog "event" occurs when the bit
1595 position represented by this number transitions from zero to one.
1597 For Freescale Book-E processors, this is a number between 0 and 63.
1598 For other Book-E processors, this is a number between 0 and 3.
1600 The value can be overridden by the wdt_period command-line parameter.
1603 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1604 select WATCHDOG_CORE
1605 depends on GPIOLIB || COMPILE_TEST
1607 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1609 The driver can also be built as a module. If so, the module will be
1612 If unsure select N here.
1614 # PPC64 Architecture
1616 config WATCHDOG_RTAS
1617 tristate "RTAS watchdog"
1620 This driver adds watchdog support for the RTAS watchdog.
1622 To compile this driver as a module, choose M here. The module
1623 will be called wdrtas.
1627 config DIAG288_WATCHDOG
1628 tristate "System z diag288 Watchdog"
1630 select WATCHDOG_CORE
1632 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1633 provide a virtual watchdog timer to their guest that cause a
1634 user define Control Program command to be executed after a
1636 LPAR provides a very similar interface. This driver handles
1639 To compile this driver as a module, choose M here. The module
1640 will be called diag288_wdt.
1642 # SUPERH (sh + sh64) Architecture
1645 tristate "SuperH Watchdog"
1646 depends on SUPERH && (CPU_SH3 || CPU_SH4)
1647 select WATCHDOG_CORE
1649 This driver adds watchdog support for the integrated watchdog in the
1650 SuperH processors. If you have one of these processors and wish
1651 to have watchdog support enabled, say Y, otherwise say N.
1653 As a side note, saying Y here will automatically boost HZ to 1000
1654 so that the timer has a chance to clear the overflow counter. On
1655 slower systems (such as the SH-2 and SH-3) this will likely yield
1656 some performance issues. As such, the WDT should be avoided here
1657 unless it is absolutely necessary.
1659 To compile this driver as a module, choose M here: the
1660 module will be called shwdt.
1662 # SPARC Architecture
1664 # SPARC64 Architecture
1666 config WATCHDOG_CP1XXX
1667 tristate "CP1XXX Hardware Watchdog support"
1668 depends on SPARC64 && PCI
1670 This is the driver for the hardware watchdog timers present on
1671 Sun Microsystems CompactPCI models CP1400 and CP1500.
1673 To compile this driver as a module, choose M here: the
1674 module will be called cpwatchdog.
1676 If you do not have a CompactPCI model CP1400 or CP1500, or
1677 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1678 you should say N to this option.
1681 tristate "RIO Hardware Watchdog support"
1682 depends on SPARC64 && PCI
1684 Say Y here to support the hardware watchdog capability on Sun RIO
1685 machines. The watchdog timeout period is normally one minute but
1686 can be changed with a boot-time parameter.
1688 config WATCHDOG_SUN4V
1689 tristate "Sun4v Watchdog support"
1690 select WATCHDOG_CORE
1693 Say Y here to support the hypervisor watchdog capability embedded
1694 in the SPARC sun4v architecture.
1696 To compile this driver as a module, choose M here. The module will
1697 be called sun4v_wdt.
1699 # XTENSA Architecture
1704 tristate "Xen Watchdog support"
1707 Say Y here to support the hypervisor watchdog capability provided
1708 by Xen 4.0 and newer. The watchdog timeout period is normally one
1709 minute but can be changed with a boot-time parameter.
1712 tristate "UML watchdog"
1716 # ISA-based Watchdog Cards
1719 comment "ISA-based Watchdog Cards"
1723 tristate "Berkshire Products ISA-PC Watchdog"
1726 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1727 This card simply watches your kernel to make sure it doesn't freeze,
1728 and if it does, it reboots your computer after a certain amount of
1729 time. This driver is like the WDT501 driver but for different
1730 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1731 watchdog cards can be ordered from <http://www.berkprod.com/>.
1733 To compile this driver as a module, choose M here: the
1734 module will be called pcwd.
1736 Most people will say N.
1739 tristate "Mixcom Watchdog"
1742 This is a driver for the Mixcom hardware watchdog cards. This
1743 watchdog simply watches your kernel to make sure it doesn't freeze,
1744 and if it does, it reboots your computer after a certain amount of
1747 To compile this driver as a module, choose M here: the
1748 module will be called mixcomwd.
1750 Most people will say N.
1753 tristate "WDT Watchdog timer"
1756 If you have a WDT500P or WDT501P watchdog board, say Y here,
1757 otherwise N. It is not possible to probe for this board, which means
1758 that you have to inform the kernel about the IO port and IRQ that
1759 is needed (you can do this via the io and irq parameters)
1761 To compile this driver as a module, choose M here: the
1762 module will be called wdt.
1765 # PCI-based Watchdog Cards
1768 comment "PCI-based Watchdog Cards"
1771 config PCIPCWATCHDOG
1772 tristate "Berkshire Products PCI-PC Watchdog"
1775 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1776 This card simply watches your kernel to make sure it doesn't freeze,
1777 and if it does, it reboots your computer after a certain amount of
1778 time. The card can also monitor the internal temperature of the PC.
1779 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1781 To compile this driver as a module, choose M here: the
1782 module will be called pcwd_pci.
1784 Most people will say N.
1787 tristate "PCI-WDT500/501 Watchdog timer"
1790 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1792 If you have a PCI-WDT501 watchdog board then you can enable the
1793 temperature sensor by setting the type parameter to 501.
1795 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1796 can do this via the tachometer parameter. Only do this if you have a
1797 fan tachometer actually set up.
1799 To compile this driver as a module, choose M here: the
1800 module will be called wdt_pci.
1803 # USB-based Watchdog Cards
1806 comment "USB-based Watchdog Cards"
1809 config USBPCWATCHDOG
1810 tristate "Berkshire Products USB-PC Watchdog"
1813 This is the driver for the Berkshire Products USB-PC Watchdog card.
1814 This card simply watches your kernel to make sure it doesn't freeze,
1815 and if it does, it reboots your computer after a certain amount of
1816 time. The card can also monitor the internal temperature of the PC.
1817 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1819 To compile this driver as a module, choose M here: the
1820 module will be called pcwd_usb.
1822 Most people will say N.