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 # General Watchdog drivers
53 comment "Watchdog Device Drivers"
55 # Architecture Independent
58 tristate "Software watchdog"
61 A software monitoring watchdog. This will fail to reboot your system
62 from some situations that the hardware watchdog will recover
63 from. Equally it's a lot cheaper to install.
65 To compile this driver as a module, choose M here: the
66 module will be called softdog.
68 config DA9052_WATCHDOG
69 tristate "Dialog DA9052 Watchdog"
70 depends on PMIC_DA9052
73 Support for the watchdog in the DA9052 PMIC. Watchdog trigger
76 Say Y here to include support for the DA9052 watchdog.
77 Alternatively say M to compile the driver as a module,
78 which will be called da9052_wdt.
80 config DA9055_WATCHDOG
81 tristate "Dialog Semiconductor DA9055 Watchdog"
85 If you say yes here you get support for watchdog on the Dialog
86 Semiconductor DA9055 PMIC.
88 This driver can also be built as a module. If so, the module
89 will be called da9055_wdt.
91 config DA9063_WATCHDOG
92 tristate "Dialog DA9063 Watchdog"
96 Support for the watchdog in the DA9063 PMIC.
98 This driver can be built as a module. The module name is da9063_wdt.
100 config DA9062_WATCHDOG
101 tristate "Dialog DA9062 Watchdog"
102 depends on MFD_DA9062
105 Support for the watchdog in the DA9062 PMIC.
107 This driver can be built as a module. The module name is da9062_wdt.
110 tristate "Watchdog device controlled through GPIO-line"
114 If you say yes here you get support for watchdog device
115 controlled through GPIO-line.
117 config GPIO_WATCHDOG_ARCH_INITCALL
118 bool "Register the watchdog as early as possible"
119 depends on GPIO_WATCHDOG=y
121 In some situations, the default initcall level (module_init)
122 in not early enough in the boot process to avoid the watchdog
124 If you say yes here, the initcall level would be raised to
128 config MENF21BMC_WATCHDOG
129 tristate "MEN 14F021P00 BMC Watchdog"
130 depends on MFD_MENF21BMC
133 Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
135 This driver can also be built as a module. If so the module
136 will be called menf21bmc_wdt.
138 config WM831X_WATCHDOG
139 tristate "WM831x watchdog"
140 depends on MFD_WM831X
143 Support for the watchdog in the WM831x AudioPlus PMICs. When
144 the watchdog triggers the system will be reset.
146 config WM8350_WATCHDOG
147 tristate "WM8350 watchdog"
148 depends on MFD_WM8350
151 Support for the watchdog in the WM8350 AudioPlus PMIC. When
152 the watchdog triggers the system will be reset.
154 config XILINX_WATCHDOG
155 tristate "Xilinx Watchdog timer"
159 Watchdog driver for the xps_timebase_wdt ip core.
161 To compile this driver as a module, choose M here: the
162 module will be called of_xilinx_wdt.
168 config ARM_SP805_WATCHDOG
169 tristate "ARM SP805 Watchdog"
170 depends on (ARM || ARM64) && ARM_AMBA
173 ARM Primecell SP805 Watchdog timer. This will reboot your system when
174 the timeout is reached.
176 config AT91RM9200_WATCHDOG
177 tristate "AT91RM9200 watchdog"
178 depends on SOC_AT91RM9200 && MFD_SYSCON
180 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
181 system when the timeout is reached.
183 config AT91SAM9X_WATCHDOG
184 tristate "AT91SAM9X / AT91CAP9 watchdog"
188 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
189 reboot your system when the timeout is reached.
191 config CADENCE_WATCHDOG
192 tristate "Cadence Watchdog Timer"
196 Say Y here if you want to include support for the watchdog
197 timer in the Xilinx Zynq.
199 config 21285_WATCHDOG
200 tristate "DC21285 watchdog"
201 depends on FOOTBRIDGE
203 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
204 here if you wish to use this. Alternatively say M to compile the
205 driver as a module, which will be called wdt285.
207 This driver does not work on all machines. In particular, early CATS
208 boards have hardware problems that will cause the machine to simply
209 lock up if the watchdog fires.
211 "If in doubt, leave it out" - say N.
214 tristate "NetWinder WB83C977 watchdog"
215 depends on FOOTBRIDGE && ARCH_NETWINDER
217 Say Y here to include support for the WB977 watchdog included in
218 NetWinder machines. Alternatively say M to compile the driver as
219 a module, which will be called wdt977.
221 Not sure? It's safe to say N.
223 config IXP4XX_WATCHDOG
224 tristate "IXP4xx Watchdog"
225 depends on ARCH_IXP4XX
227 Say Y here if to include support for the watchdog timer
228 in the Intel IXP4xx network processors. This driver can
229 be built as a module by choosing M. The module will
230 be called ixp4xx_wdt.
232 Note: The internal IXP4xx watchdog does a soft CPU reset
233 which doesn't reset any peripherals. There are circumstances
234 where the watchdog will fail to reset the board correctly
235 (e.g., if the boot ROM is in an unreadable state).
237 Say N if you are unsure.
239 config KS8695_WATCHDOG
240 tristate "KS8695 watchdog"
241 depends on ARCH_KS8695
243 Watchdog timer embedded into KS8695 processor. This will reboot your
244 system when the timeout is reached.
246 config HAVE_S3C2410_WATCHDOG
249 This will include watchdog timer support for Samsung SoCs. If
250 you want to include watchdog support for any machine, kindly
251 select this in the respective mach-XXXX/Kconfig file.
253 config S3C2410_WATCHDOG
254 tristate "S3C2410 Watchdog"
255 depends on HAVE_S3C2410_WATCHDOG
257 select MFD_SYSCON if ARCH_EXYNOS5
259 Watchdog timer block in the Samsung SoCs. This will reboot
260 the system when the timer expires with the watchdog enabled.
262 The driver is limited by the speed of the system's PCLK
263 signal, so with reasonably fast systems (PCLK around 50-66MHz)
264 then watchdog intervals of over approximately 20seconds are
267 The driver can be built as a module by choosing M, and will
268 be called s3c2410_wdt
270 config SA1100_WATCHDOG
271 tristate "SA1100/PXA2xx watchdog"
272 depends on ARCH_SA1100 || ARCH_PXA
274 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
275 reboot your system when timeout is reached.
277 NOTE: once enabled, this timer cannot be disabled.
279 To compile this driver as a module, choose M here: the
280 module will be called sa1100_wdt.
283 tristate "Synopsys DesignWare watchdog"
286 Say Y here if to include support for the Synopsys DesignWare
287 watchdog timer found in many chips.
288 To compile this driver as a module, choose M here: the
289 module will be called dw_wdt.
291 config EP93XX_WATCHDOG
292 tristate "EP93xx Watchdog"
293 depends on ARCH_EP93XX
296 Say Y here if to include support for the watchdog timer
297 embedded in the Cirrus Logic EP93xx family of devices.
299 To compile this driver as a module, choose M here: the
300 module will be called ep93xx_wdt.
303 tristate "OMAP Watchdog"
304 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
307 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
308 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
310 config PNX4008_WATCHDOG
311 tristate "LPC32XX Watchdog"
312 depends on ARCH_LPC32XX
315 Say Y here if to include support for the watchdog timer
316 in the LPC32XX processor.
317 This driver can be built as a module by choosing M. The module
318 will be called pnx4008_wdt.
320 Say N if you are unsure.
323 tristate "IOP Watchdog"
324 depends on ARCH_IOP13XX
325 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
327 Say Y here if to include support for the watchdog timer
328 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
329 be built as a module by choosing M. The module will
332 Note: The IOP13XX watchdog does an Internal Bus Reset which will
333 affect both cores and the peripherals of the IOP. The ATU-X
334 and/or ATUe configuration registers will remain intact, but if
335 operating as an Root Complex and/or Central Resource, the PCI-X
336 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
338 config DAVINCI_WATCHDOG
339 tristate "DaVinci watchdog"
340 depends on ARCH_DAVINCI || ARCH_KEYSTONE
343 Say Y here if to include support for the watchdog timer
344 in the DaVinci DM644x/DM646x or Keystone processors.
345 To compile this driver as a module, choose M here: the
346 module will be called davinci_wdt.
348 NOTE: once enabled, this timer cannot be disabled.
349 Say N if you are unsure.
351 config ORION_WATCHDOG
352 tristate "Orion watchdog"
353 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU
356 Say Y here if to include support for the watchdog timer
357 in the Marvell Orion5x and Kirkwood ARM SoCs.
358 To compile this driver as a module, choose M here: the
359 module will be called orion_wdt.
361 config RN5T618_WATCHDOG
362 tristate "Ricoh RN5T618 watchdog"
363 depends on MFD_RN5T618
366 If you say yes here you get support for watchdog on the Ricoh
369 This driver can also be built as a module. If so, the module
370 will be called rn5t618_wdt.
372 config SUNXI_WATCHDOG
373 tristate "Allwinner SoCs watchdog support"
374 depends on ARCH_SUNXI
377 Say Y here to include support for the watchdog timer
379 To compile this driver as a module, choose M here: the
380 module will be called sunxi_wdt.
382 config COH901327_WATCHDOG
383 bool "ST-Ericsson COH 901 327 watchdog"
385 default y if MACH_U300
388 Say Y here to include Watchdog timer support for the
389 watchdog embedded into the ST-Ericsson U300 series platforms.
390 This watchdog is used to reset the system and thus cannot be
391 compiled as a module.
393 config TWL4030_WATCHDOG
394 tristate "TWL4030 Watchdog"
395 depends on TWL4030_CORE
398 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
399 watchdog timer support for TWL4030 chips.
401 config STMP3XXX_RTC_WATCHDOG
402 tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
403 depends on RTC_DRV_STMP
406 Say Y here to include support for the watchdog timer inside
407 the RTC for the STMP37XX/378X or i.MX23/28 SoC.
408 To compile this driver as a module, choose M here: the
409 module will be called stmp3xxx_rtc_wdt.
411 config NUC900_WATCHDOG
412 tristate "Nuvoton NUC900 watchdog"
413 depends on ARCH_W90X900
415 Say Y here if to include support for the watchdog timer
416 for the Nuvoton NUC900 series SoCs.
417 To compile this driver as a module, choose M here: the
418 module will be called nuc900_wdt.
420 config TS72XX_WATCHDOG
421 tristate "TS-72XX SBC Watchdog"
422 depends on MACH_TS72XX
424 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
425 watchdog timer implemented in a external CPLD chip. Say Y here
426 if you want to support for the watchdog timer on TS-72XX boards.
428 To compile this driver as a module, choose M here: the
429 module will be called ts72xx_wdt.
431 config MAX63XX_WATCHDOG
432 tristate "Max63xx watchdog"
436 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
439 tristate "IMX2+ Watchdog"
444 This is the driver for the hardware watchdog
445 on the Freescale IMX2 and later processors.
446 If you have one of these processors and wish to have
447 watchdog support enabled, say Y, otherwise say N.
449 To compile this driver as a module, choose M here: the
450 module will be called imx2_wdt.
452 config UX500_WATCHDOG
453 tristate "ST-Ericsson Ux500 watchdog"
454 depends on MFD_DB8500_PRCMU
458 Say Y here to include Watchdog timer support for the watchdog
459 existing in the prcmu of ST-Ericsson Ux500 series platforms.
461 To compile this driver as a module, choose M here: the
462 module will be called ux500_wdt.
465 tristate "Retu watchdog"
469 Retu watchdog driver for Nokia Internet Tablets (770, N800,
470 N810). At least on N800 the watchdog cannot be disabled, so
471 this driver is essential and you should enable it.
473 To compile this driver as a module, choose M here: the
474 module will be called retu_wdt.
477 tristate "MOXART watchdog"
478 depends on ARCH_MOXART
480 Say Y here to include Watchdog timer support for the watchdog
481 existing on the MOXA ART SoC series platforms.
483 To compile this driver as a module, choose M here: the
484 module will be called moxart_wdt.
486 config SIRFSOC_WATCHDOG
487 tristate "SiRFSOC watchdog"
492 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
493 the watchdog triggers the system will be reset.
495 config ST_LPC_WATCHDOG
496 tristate "STMicroelectronics LPC Watchdog"
501 Say Y here to include STMicroelectronics Low Power Controller
502 (LPC) based Watchdog timer support.
504 To compile this driver as a module, choose M here: the
505 module will be called st_lpc_wdt.
507 config TEGRA_WATCHDOG
508 tristate "Tegra watchdog"
509 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
512 Say Y here to include support for the watchdog timer
513 embedded in NVIDIA Tegra SoCs.
515 To compile this driver as a module, choose M here: the
516 module will be called tegra_wdt.
519 tristate "QCOM watchdog"
524 Say Y here to include Watchdog timer support for the watchdog found
525 on QCOM chipsets. Currently supported targets are the MSM8960,
526 APQ8064, and IPQ8064.
528 To compile this driver as a module, choose M here: the
529 module will be called qcom_wdt.
531 config MESON_WATCHDOG
532 tristate "Amlogic Meson SoCs watchdog support"
533 depends on ARCH_MESON
536 Say Y here to include support for the watchdog timer
537 in Amlogic Meson SoCs.
538 To compile this driver as a module, choose M here: the
539 module will be called meson_wdt.
541 config MEDIATEK_WATCHDOG
542 tristate "Mediatek SoCs watchdog support"
543 depends on ARCH_MEDIATEK
546 Say Y here to include support for the watchdog timer
548 To compile this driver as a module, choose M here: the
549 module will be called mtk_wdt.
551 config DIGICOLOR_WATCHDOG
552 tristate "Conexant Digicolor SoCs watchdog support"
553 depends on ARCH_DIGICOLOR
556 Say Y here to include support for the watchdog timer
557 in Conexant Digicolor SoCs.
558 To compile this driver as a module, choose M here: the
559 module will be called digicolor_wdt.
561 config LPC18XX_WATCHDOG
562 tristate "LPC18xx/43xx Watchdog"
563 depends on ARCH_LPC18XX || COMPILE_TEST
566 Say Y here if to include support for the watchdog timer
567 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
569 To compile this driver as a module, choose M here: the
570 module will be called lpc18xx_wdt.
574 config AT32AP700X_WDT
575 tristate "AT32AP700x watchdog"
576 depends on CPU_AT32AP700X
578 Watchdog timer embedded into AT32AP700x devices. This will reboot
579 your system when the timeout is reached.
581 # BLACKFIN Architecture
584 tristate "Blackfin On-Chip Watchdog Timer"
587 If you say yes here you will get support for the Blackfin On-Chip
588 Watchdog Timer. If you have one of these processors and wish to
589 have watchdog support enabled, say Y, otherwise say N.
591 To compile this driver as a module, choose M here: the
592 module will be called bfin_wdt.
598 # X86 (i386 + ia64 + x86_64) Architecture
601 tristate "Acquire SBC Watchdog Timer"
604 This is the driver for the hardware watchdog on Single Board
605 Computers produced by Acquire Inc (and others). This watchdog
606 simply watches your kernel to make sure it doesn't freeze, and if
607 it does, it reboots your computer after a certain amount of time.
609 To compile this driver as a module, choose M here: the
610 module will be called acquirewdt.
612 Most people will say N.
615 tristate "Advantech SBC Watchdog Timer"
618 If you are configuring a Linux kernel for the Advantech single-board
619 computer, say `Y' here to support its built-in watchdog timer
620 feature. More information can be found at
621 <http://www.advantech.com.tw/products/>
624 tristate "ALi M1535 PMU Watchdog Timer"
625 depends on X86 && PCI
627 This is the driver for the hardware watchdog on the ALi M1535 PMU.
629 To compile this driver as a module, choose M here: the
630 module will be called alim1535_wdt.
632 Most people will say N.
635 tristate "ALi M7101 PMU Computer Watchdog"
638 This is the driver for the hardware watchdog on the ALi M7101 PMU
639 as used in the x86 Cobalt servers and also found in some
640 SPARC Netra servers too.
642 To compile this driver as a module, choose M here: the
643 module will be called alim7101_wdt.
645 Most people will say N.
648 tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
651 This is the driver for the hardware watchdog on the Fintek
652 F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
654 You can compile this driver directly into the kernel, or use
655 it as a module. The module will be called f71808e_wdt.
658 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
659 depends on X86 && PCI
661 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
662 (Total Cost of Ownership) timer is a watchdog timer that will reboot
663 the machine after its expiration. The expiration time can be
664 configured with the "heartbeat" parameter.
666 To compile this driver as a module, choose M here: the
667 module will be called sp5100_tco.
670 tristate "AMD Geode CS5535/CS5536 Watchdog"
671 depends on CS5535_MFGPT
673 This driver enables a watchdog capability built into the
674 CS5535/CS5536 companion chips for the AMD Geode GX and LX
675 processors. This watchdog watches your kernel to make sure
676 it doesn't freeze, and if it does, it reboots your computer after
677 a certain amount of time.
679 You can compile this driver directly into the kernel, or use
680 it as a module. The module will be called geodewdt.
683 tristate "AMD Elan SC520 processor Watchdog"
686 This is the driver for the hardware watchdog built in to the
687 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
688 This watchdog simply watches your kernel to make sure it doesn't
689 freeze, and if it does, it reboots your computer after a certain
692 You can compile this driver directly into the kernel, or use
693 it as a module. The module will be called sc520_wdt.
695 config SBC_FITPC2_WATCHDOG
696 tristate "Compulab SBC-FITPC2 watchdog"
699 This is the driver for the built-in watchdog timer on the fit-PC2,
700 fit-PC2i, CM-iAM single-board computers made by Compulab.
702 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
703 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
705 Entering BIOS setup temporary disables watchdog operation regardless to current state,
706 so system will not be restarted while user in BIOS setup.
708 Once watchdog was enabled the system will be restarted every
709 "Watchdog Timer Value" period, so to prevent it user can restart or
710 disable the watchdog.
712 To compile this driver as a module, choose M here: the
713 module will be called sbc_fitpc2_wdt.
715 Most people will say N.
718 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
721 Enable support for the watchdog timer on the Eurotech CPU-1220 and
722 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
723 information are at <http://www.eurotech.it/>.
726 tristate "IB700 SBC Watchdog Timer"
729 This is the driver for the hardware watchdog on the IB700 Single
730 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
731 simply watches your kernel to make sure it doesn't freeze, and if
732 it does, it reboots your computer after a certain amount of time.
734 This driver is like the WDT501 driver but for slightly different hardware.
736 To compile this driver as a module, choose M here: the
737 module will be called ib700wdt.
739 Most people will say N.
742 tristate "IBM Automatic Server Restart"
745 This is the driver for the IBM Automatic Server Restart watchdog
746 timer built-in into some eServer xSeries machines.
748 To compile this driver as a module, choose M here: the
749 module will be called ibmasr.
752 tristate "ICP Single Board Computer Watchdog Timer"
755 This is a driver for the hardware watchdog on the ICP Single
756 Board Computer. This driver is working on (at least) the following
757 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
759 To compile this driver as a module, choose M here: the
760 module will be called wafer5823wdt.
763 tristate "Intel 6300ESB Timer/Watchdog"
766 Hardware driver for the watchdog timer built into the Intel
767 6300ESB controller hub.
769 To compile this driver as a module, choose M here: the
770 module will be called i6300esb.
773 tristate "Intel Atom E6xx Watchdog"
774 depends on X86 && PCI
779 Hardware driver for the watchdog timer built into the Intel
780 Atom E6XX (TunnelCreek) processor.
782 To compile this driver as a module, choose M here: the
783 module will be called ie6xx_wdt.
785 config INTEL_SCU_WATCHDOG
786 bool "Intel SCU Watchdog for Mobile Platforms"
787 depends on X86_INTEL_MID
789 Hardware driver for the watchdog time built into the Intel SCU
790 for Intel Mobile Platforms.
792 To compile this driver as a module, choose M here.
794 config INTEL_MID_WATCHDOG
795 tristate "Intel MID Watchdog Timer"
796 depends on X86_INTEL_MID
799 Watchdog timer driver built into the Intel SCU for Intel MID
802 This driver currently supports only the watchdog evolution
803 implementation in SCU, available for Merrifield generation.
805 To compile this driver as a module, choose M here.
808 tristate "Intel TCO Timer/Watchdog"
809 depends on (X86 || IA64) && PCI
813 Hardware driver for the intel TCO timer based watchdog devices.
814 These drivers are included in the Intel 82801 I/O Controller
815 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
818 The TCO (Total Cost of Ownership) timer is a watchdog timer
819 that will reboot the machine after its second expiration. The
820 expiration time can be configured with the "heartbeat" parameter.
822 On some motherboards the driver may fail to reset the chipset's
823 NO_REBOOT flag which prevents the watchdog from rebooting the
824 machine. If this is the case you will get a kernel message like
825 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
827 To compile this driver as a module, choose M here: the
828 module will be called iTCO_wdt.
830 config ITCO_VENDOR_SUPPORT
831 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
834 Add vendor specific support to the intel TCO timer based watchdog
835 devices. At this moment we only have additional support for some
836 SuperMicro Inc. motherboards.
839 tristate "IT8712F (Smart Guardian) Watchdog Timer"
842 This is the driver for the built-in watchdog timer on the IT8712F
843 Super I/0 chipset used on many motherboards.
845 If the driver does not work, then make sure that the game port in
848 To compile this driver as a module, choose M here: the
849 module will be called it8712f_wdt.
852 tristate "IT87 Watchdog Timer"
855 This is the driver for the hardware watchdog on the ITE IT8702,
856 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728
859 If the driver does not work, then make sure that the game port in
862 This watchdog simply watches your kernel to make sure it doesn't
863 freeze, and if it does, it reboots your computer after a certain
866 To compile this driver as a module, choose M here: the module will
870 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
871 depends on X86 && PCI
873 A software monitoring watchdog and NMI sourcing driver. This driver
874 will detect lockups and provide a stack trace. This is a driver that
875 will only load on an HP ProLiant system with a minimum of iLO2 support.
876 To compile this driver as a module, choose M here: the module will be
880 tristate "Kontron COM Watchdog Timer"
881 depends on MFD_KEMPLD
884 Support for the PLD watchdog on some Kontron ETX and COMexpress
887 This driver can also be built as a module. If so, the module will be
890 config HPWDT_NMI_DECODING
891 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
892 depends on HP_WATCHDOG
895 When an NMI occurs this feature will make the necessary BIOS calls to
896 log the cause of the NMI.
899 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
902 This is a driver for National Semiconductor PC87307/PC97307 hardware
903 watchdog cards as found on the SC1200. This watchdog is mainly used
904 for power management purposes and can be used to power down the device
905 during inactivity periods (includes interrupt activity monitoring).
907 To compile this driver as a module, choose M here: the
908 module will be called sc1200wdt.
910 Most people will say N.
913 tristate "National Semiconductor SCx200 Watchdog"
914 depends on SCx200 && PCI
916 Enable the built-in watchdog timer support on the National
917 Semiconductor SCx200 processors.
919 If compiled as a module, it will be called scx200_wdt.
922 tristate "NS PC87413 watchdog"
925 This is the driver for the hardware watchdog on the PC87413 chipset
926 This watchdog simply watches your kernel to make sure it doesn't
927 freeze, and if it does, it reboots your computer after a certain
930 To compile this driver as a module, choose M here: the
931 module will be called pc87413_wdt.
933 Most people will say N.
936 tristate "nVidia TCO Timer/Watchdog"
937 depends on X86 && PCI
939 Hardware driver for the TCO timer built into the nVidia Hub family
940 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
941 watchdog timer that will reboot the machine after its second
942 expiration. The expiration time can be configured with the
943 "heartbeat" parameter.
945 On some motherboards the driver may fail to reset the chipset's
946 NO_REBOOT flag which prevents the watchdog from rebooting the
947 machine. If this is the case you will get a kernel message like
948 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
950 To compile this driver as a module, choose M here: the
951 module will be called nv_tco.
954 tristate "RDC R-321x SoC watchdog"
955 depends on X86_RDC321X
957 This is the driver for the built in hardware watchdog
958 in the RDC R-321x SoC.
960 To compile this driver as a module, choose M here: the
961 module will be called rdc321x_wdt.
964 tristate "SBC-60XX Watchdog Timer"
967 This driver can be used with the watchdog timer found on some
968 single board computers, namely the 6010 PII based computer.
969 It may well work with other cards. It reads port 0x443 to enable
970 and re-set the watchdog timer, and reads port 0x45 to disable
971 the watchdog. If you have a card that behave in similar ways,
972 you can probably make this driver work with your card as well.
974 You can compile this driver directly into the kernel, or use
975 it as a module. The module will be called sbc60xxwdt.
978 tristate "SBC8360 Watchdog Timer"
982 This is the driver for the hardware watchdog on the SBC8360 Single
983 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
985 To compile this driver as a module, choose M here: the
986 module will be called sbc8360.
988 Most people will say N.
991 tristate "SBC Nano 7240 Watchdog Timer"
992 depends on X86_32 && !UML
994 This is the driver for the hardware watchdog found on the IEI
995 single board computers EPIC Nano 7240 (and likely others). This
996 watchdog simply watches your kernel to make sure it doesn't freeze,
997 and if it does, it reboots your computer after a certain amount of
1000 To compile this driver as a module, choose M here: the
1001 module will be called sbc7240_wdt.
1004 tristate "SMA CPU5 Watchdog"
1008 To compile this driver as a module, choose M here: the
1009 module will be called cpu5wdt.
1011 config SMSC_SCH311X_WDT
1012 tristate "SMSC SCH311X Watchdog Timer"
1015 This is the driver for the hardware watchdog timer on the
1016 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1017 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1020 To compile this driver as a module, choose M here: the
1021 module will be called sch311x_wdt.
1023 config SMSC37B787_WDT
1024 tristate "Winbond SMsC37B787 Watchdog Timer"
1027 This is the driver for the hardware watchdog component on the
1028 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1029 from Vision Systems and maybe others.
1031 This watchdog simply watches your kernel to make sure it doesn't
1032 freeze, and if it does, it reboots your computer after a certain
1035 Usually a userspace daemon will notify the kernel WDT driver that
1036 userspace is still alive, at regular intervals.
1038 To compile this driver as a module, choose M here: the
1039 module will be called smsc37b787_wdt.
1041 Most people will say N.
1044 tristate "VIA Watchdog Timer"
1045 depends on X86 && PCI
1046 select WATCHDOG_CORE
1048 This is the driver for the hardware watchdog timer on VIA
1049 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1051 To compile this driver as a module, choose M here; the module
1052 will be called via_wdt.
1054 Most people will say N.
1057 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1059 select WATCHDOG_CORE
1061 This is the driver for the hardware watchdog on the following
1063 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1075 This watchdog simply watches your kernel to make sure it doesn't
1076 freeze, and if it does, it reboots your computer after a certain
1079 To compile this driver as a module, choose M here: the
1080 module will be called w83627hf_wdt.
1082 Most people will say N.
1085 tristate "W83877F (EMACS) Watchdog Timer"
1088 This is the driver for the hardware watchdog on the W83877F chipset
1089 as used in EMACS PC-104 motherboards (and likely others). This
1090 watchdog simply watches your kernel to make sure it doesn't freeze,
1091 and if it does, it reboots your computer after a certain amount of
1094 To compile this driver as a module, choose M here: the
1095 module will be called w83877f_wdt.
1097 Most people will say N.
1100 tristate "W83977F (PCM-5335) Watchdog Timer"
1103 This is the driver for the hardware watchdog on the W83977F I/O chip
1104 as used in AAEON's PCM-5335 SBC (and likely others). This
1105 watchdog simply watches your kernel to make sure it doesn't freeze,
1106 and if it does, it reboots your computer after a certain amount of
1109 To compile this driver as a module, choose M here: the
1110 module will be called w83977f_wdt.
1113 tristate "ZF MachZ Watchdog"
1116 If you are using a ZF Micro MachZ processor, say Y here, otherwise
1117 N. This is the driver for the watchdog timer built-in on that
1118 processor using ZF-Logic interface. This watchdog simply watches
1119 your kernel to make sure it doesn't freeze, and if it does, it
1120 reboots your computer after a certain amount of time.
1122 To compile this driver as a module, choose M here: the
1123 module will be called machzwd.
1125 config SBC_EPX_C3_WATCHDOG
1126 tristate "Winsystems SBC EPX-C3 watchdog"
1129 This is the driver for the built-in watchdog timer on the EPX-C3
1130 Single-board computer made by Winsystems, Inc.
1132 *Note*: This hardware watchdog is not probeable and thus there
1133 is no way to know if writing to its IO address will corrupt
1134 your system or have any real effect. The only way to be sure
1135 that this driver does what you want is to make sure you
1136 are running it on an EPX-C3 from Winsystems with the watchdog
1137 timer at IO address 0x1ee and 0x1ef. It will write to both those
1138 IO ports. Basically, the assumption is made that if you compile
1139 this driver into your kernel and/or load it as a module, that you
1140 know what you are doing and that you are in fact running on an
1143 To compile this driver as a module, choose M here: the
1144 module will be called sbc_epx_c3.
1150 config M54xx_WATCHDOG
1151 tristate "MCF54xx watchdog support"
1154 To compile this driver as a module, choose M here: the
1155 module will be called m54xx_wdt.
1157 # MicroBlaze Architecture
1162 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1165 Hardware driver for the built-in watchdog timer on the Atheros
1166 AR71XX/AR724X/AR913X SoCs.
1169 tristate "Broadcom BCM47xx Watchdog Timer"
1170 depends on BCM47XX || ARCH_BCM_5301X
1171 select WATCHDOG_CORE
1173 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1176 tristate "IDT RC32434 SoC Watchdog Timer"
1177 depends on MIKROTIK_RB532
1179 Hardware driver for the IDT RC32434 SoC built-in
1182 To compile this driver as a module, choose M here: the
1183 module will be called rc32434_wdt.
1186 tristate "Indy/I2 Hardware Watchdog"
1187 depends on SGI_HAS_INDYDOG
1189 Hardware driver for the Indy's/I2's watchdog. This is a
1190 watchdog timer that will reboot the machine after a 60 second
1191 timer expired and no process has written to /dev/watchdog during
1195 tristate "Ingenic jz4740 SoC hardware watchdog"
1196 depends on MACH_JZ4740
1197 select WATCHDOG_CORE
1199 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1202 tristate "MTX-1 Hardware Watchdog"
1203 depends on MIPS_MTX1
1205 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1206 will reboot the machine after a 100 seconds timer expired.
1209 tristate "PNX833x Hardware Watchdog"
1210 depends on SOC_PNX8335
1212 Hardware driver for the PNX833x's watchdog. This is a
1213 watchdog timer that will reboot the machine after a programmable
1214 timer has expired and no process has written to /dev/watchdog during
1218 tristate "Sibyte SoC hardware watchdog"
1221 Watchdog driver for the built in watchdog hardware in Sibyte
1222 SoC processors. There are apparently two watchdog timers
1223 on such processors; this driver supports only the first one,
1224 because currently Linux only supports exporting one watchdog
1227 To compile this driver as a loadable module, choose M here.
1228 The module will be called sb_wdog.
1231 tristate "TI AR7 Watchdog Timer"
1234 Hardware driver for the TI AR7 Watchdog Timer.
1237 tristate "Toshiba TXx9 Watchdog Timer"
1238 depends on CPU_TX39XX || CPU_TX49XX
1239 select WATCHDOG_CORE
1241 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1244 tristate "Cavium OCTEON SOC family Watchdog Timer"
1245 depends on CAVIUM_OCTEON_SOC
1247 select WATCHDOG_CORE
1248 select EXPORT_UASM if OCTEON_WDT = m
1250 Hardware driver for OCTEON's on chip watchdog timer.
1251 Enables the watchdog for all cores running Linux. It
1252 installs a NMI handler and pokes the watchdog based on an
1253 interrupt. On first expiration of the watchdog, the
1254 interrupt handler pokes it. The second expiration causes an
1255 NMI that prints a message. The third expiration causes a
1258 When userspace has /dev/watchdog open, no poking is done
1259 from the first interrupt, it is then only poked when the
1263 tristate "Broadcom BCM63xx hardware watchdog"
1266 Watchdog driver for the built in watchdog hardware in Broadcom
1269 To compile this driver as a loadable module, choose M here.
1270 The module will be called bcm63xx_wdt.
1273 tristate "Broadcom BCM2835 hardware watchdog"
1274 depends on ARCH_BCM2835
1275 select WATCHDOG_CORE
1277 Watchdog driver for the built in watchdog hardware in Broadcom
1280 To compile this driver as a loadable module, choose M here.
1281 The module will be called bcm2835_wdt.
1284 tristate "BCM Kona Watchdog"
1285 depends on ARCH_BCM_MOBILE
1286 select WATCHDOG_CORE
1288 Support for the watchdog timer on the following Broadcom BCM281xx
1289 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1292 Say 'Y' or 'M' here to enable the driver. The module will be called
1295 config BCM_KONA_WDT_DEBUG
1296 bool "DEBUGFS support for BCM Kona Watchdog"
1297 depends on BCM_KONA_WDT
1299 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1300 access to the driver's internal data structures as well as watchdog
1301 timer hardware registres.
1303 If in doubt, say 'N'.
1306 tristate "Imagination Technologies PDC Watchdog Timer"
1307 depends on HAS_IOMEM
1308 depends on METAG || MIPS || COMPILE_TEST
1310 Driver for Imagination Technologies PowerDown Controller
1313 To compile this driver as a loadable module, choose M here.
1314 The module will be called imgpdc_wdt.
1317 tristate "Lantiq SoC watchdog"
1320 Hardware driver for the Lantiq SoC Watchdog Timer.
1323 tristate "Ralink SoC watchdog"
1324 select WATCHDOG_CORE
1327 Hardware driver for the Ralink SoC Watchdog Timer.
1329 # PARISC Architecture
1331 # POWERPC Architecture
1334 tristate "GE Watchdog Timer"
1337 Watchdog timer found in a number of GE single board computers.
1340 bool "MPC52xx Watchdog Timer"
1341 depends on PPC_MPC52xx
1343 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1346 tristate "MPC8xxx Platform Watchdog Timer"
1347 depends on PPC_8xx || PPC_83xx || PPC_86xx
1348 select WATCHDOG_CORE
1350 This driver is for a SoC level watchdog that exists on some
1351 Freescale PowerPC processors. So far this driver supports:
1356 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1359 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1363 tristate "PIKA FPGA Watchdog"
1367 This enables the watchdog in the PIKA FPGA. Currently used on
1371 tristate "PowerPC Book-E Watchdog Timer"
1372 depends on BOOKE || 4xx
1373 select WATCHDOG_CORE
1375 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1376 MPC85xx SOCs and the IBM PowerPC 440.
1378 Please see Documentation/watchdog/watchdog-api.txt for
1381 config BOOKE_WDT_DEFAULT_TIMEOUT
1382 int "PowerPC Book-E Watchdog Timer Default Timeout"
1383 depends on BOOKE_WDT
1384 default 38 if PPC_FSL_BOOK3E
1385 range 0 63 if PPC_FSL_BOOK3E
1386 default 3 if !PPC_FSL_BOOK3E
1387 range 0 3 if !PPC_FSL_BOOK3E
1389 Select the default watchdog timer period to be used by the PowerPC
1390 Book-E watchdog driver. A watchdog "event" occurs when the bit
1391 position represented by this number transitions from zero to one.
1393 For Freescale Book-E processors, this is a number between 0 and 63.
1394 For other Book-E processors, this is a number between 0 and 3.
1396 The value can be overridden by the wdt_period command-line parameter.
1399 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1400 select WATCHDOG_CORE
1401 depends on GPIOLIB || COMPILE_TEST
1403 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1405 The driver can also be built as a module. If so, the module will be
1408 If unsure select N here.
1410 # PPC64 Architecture
1412 config WATCHDOG_RTAS
1413 tristate "RTAS watchdog"
1416 This driver adds watchdog support for the RTAS watchdog.
1418 To compile this driver as a module, choose M here. The module
1419 will be called wdrtas.
1423 config DIAG288_WATCHDOG
1424 tristate "System z diag288 Watchdog"
1426 select WATCHDOG_CORE
1428 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1429 provide a virtual watchdog timer to their guest that cause a
1430 user define Control Program command to be executed after a
1432 LPAR provides a very similar interface. This driver handles
1435 To compile this driver as a module, choose M here. The module
1436 will be called diag288_wdt.
1438 # SUPERH (sh + sh64) Architecture
1441 tristate "SuperH Watchdog"
1442 depends on SUPERH && (CPU_SH3 || CPU_SH4)
1443 select WATCHDOG_CORE
1445 This driver adds watchdog support for the integrated watchdog in the
1446 SuperH processors. If you have one of these processors and wish
1447 to have watchdog support enabled, say Y, otherwise say N.
1449 As a side note, saying Y here will automatically boost HZ to 1000
1450 so that the timer has a chance to clear the overflow counter. On
1451 slower systems (such as the SH-2 and SH-3) this will likely yield
1452 some performance issues. As such, the WDT should be avoided here
1453 unless it is absolutely necessary.
1455 To compile this driver as a module, choose M here: the
1456 module will be called shwdt.
1458 # SPARC Architecture
1460 # SPARC64 Architecture
1462 config WATCHDOG_CP1XXX
1463 tristate "CP1XXX Hardware Watchdog support"
1464 depends on SPARC64 && PCI
1466 This is the driver for the hardware watchdog timers present on
1467 Sun Microsystems CompactPCI models CP1400 and CP1500.
1469 To compile this driver as a module, choose M here: the
1470 module will be called cpwatchdog.
1472 If you do not have a CompactPCI model CP1400 or CP1500, or
1473 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1474 you should say N to this option.
1477 tristate "RIO Hardware Watchdog support"
1478 depends on SPARC64 && PCI
1480 Say Y here to support the hardware watchdog capability on Sun RIO
1481 machines. The watchdog timeout period is normally one minute but
1482 can be changed with a boot-time parameter.
1484 # XTENSA Architecture
1489 tristate "Xen Watchdog support"
1492 Say Y here to support the hypervisor watchdog capability provided
1493 by Xen 4.0 and newer. The watchdog timeout period is normally one
1494 minute but can be changed with a boot-time parameter.
1497 tristate "UML watchdog"
1501 # ISA-based Watchdog Cards
1504 comment "ISA-based Watchdog Cards"
1508 tristate "Berkshire Products ISA-PC Watchdog"
1511 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1512 This card simply watches your kernel to make sure it doesn't freeze,
1513 and if it does, it reboots your computer after a certain amount of
1514 time. This driver is like the WDT501 driver but for different
1515 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1516 watchdog cards can be ordered from <http://www.berkprod.com/>.
1518 To compile this driver as a module, choose M here: the
1519 module will be called pcwd.
1521 Most people will say N.
1524 tristate "Mixcom Watchdog"
1527 This is a driver for the Mixcom hardware watchdog cards. This
1528 watchdog simply watches your kernel to make sure it doesn't freeze,
1529 and if it does, it reboots your computer after a certain amount of
1532 To compile this driver as a module, choose M here: the
1533 module will be called mixcomwd.
1535 Most people will say N.
1538 tristate "WDT Watchdog timer"
1541 If you have a WDT500P or WDT501P watchdog board, say Y here,
1542 otherwise N. It is not possible to probe for this board, which means
1543 that you have to inform the kernel about the IO port and IRQ that
1544 is needed (you can do this via the io and irq parameters)
1546 To compile this driver as a module, choose M here: the
1547 module will be called wdt.
1550 # PCI-based Watchdog Cards
1553 comment "PCI-based Watchdog Cards"
1556 config PCIPCWATCHDOG
1557 tristate "Berkshire Products PCI-PC Watchdog"
1560 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1561 This card simply watches your kernel to make sure it doesn't freeze,
1562 and if it does, it reboots your computer after a certain amount of
1563 time. The card can also monitor the internal temperature of the PC.
1564 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1566 To compile this driver as a module, choose M here: the
1567 module will be called pcwd_pci.
1569 Most people will say N.
1572 tristate "PCI-WDT500/501 Watchdog timer"
1575 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1577 If you have a PCI-WDT501 watchdog board then you can enable the
1578 temperature sensor by setting the type parameter to 501.
1580 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1581 can do this via the tachometer parameter. Only do this if you have a
1582 fan tachometer actually set up.
1584 To compile this driver as a module, choose M here: the
1585 module will be called wdt_pci.
1588 # USB-based Watchdog Cards
1591 comment "USB-based Watchdog Cards"
1594 config USBPCWATCHDOG
1595 tristate "Berkshire Products USB-PC Watchdog"
1598 This is the driver for the Berkshire Products USB-PC Watchdog card.
1599 This card simply watches your kernel to make sure it doesn't freeze,
1600 and if it does, it reboots your computer after a certain amount of
1601 time. The card can also monitor the internal temperature of the PC.
1602 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1604 To compile this driver as a module, choose M here: the
1605 module will be called pcwd_usb.
1607 Most people will say N.