2 # Watchdog device configuration
6 bool "Watchdog Timer Support"
8 If you say Y here (and to one of the following options) and create a
9 character special file /dev/watchdog with major number 10 and minor
10 number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:
11 subsequently opening the file and then failing to write to it for
12 longer than 1 minute will result in rebooting the machine. This
13 could be useful for a networked machine that needs to come back
14 on-line as fast as possible after a lock-up. There's both a watchdog
15 implementation entirely in software (which can sometimes fail to
16 reboot the machine) and a driver for hardware watchdog boards, which
17 are more robust and can also keep track of the temperature inside
18 your computer. For details, read
19 <file:Documentation/watchdog/watchdog-api.txt> in the kernel source.
21 The watchdog is usually used together with the watchdog daemon
22 which is available from
23 <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can
24 also monitor NFS connections and can reboot the machine when the process
32 bool "WatchDog Timer Driver Core"
34 Say Y here if you want to use the new watchdog timer driver core.
35 This driver provides a framework for all watchdog timer drivers
36 and gives them the /dev/watchdog interface (and later also the
39 config WATCHDOG_NOWAYOUT
40 bool "Disable watchdog shutdown on close"
42 The default watchdog behaviour (which you get if you say N here) is
43 to stop the timer if the process managing it closes the file
44 /dev/watchdog. It's always remotely possible that this process might
45 get killed. If you say Y here, the watchdog cannot be stopped once
49 # General Watchdog drivers
52 comment "Watchdog Device Drivers"
54 # Architecture Independent
57 tristate "Software watchdog"
60 A software monitoring watchdog. This will fail to reboot your system
61 from some situations that the hardware watchdog will recover
62 from. Equally it's a lot cheaper to install.
64 To compile this driver as a module, choose M here: the
65 module will be called softdog.
67 config DA9052_WATCHDOG
68 tristate "Dialog DA9052 Watchdog"
69 depends on PMIC_DA9052
72 Support for the watchdog in the DA9052 PMIC. Watchdog trigger
75 Say Y here to include support for the DA9052 watchdog.
76 Alternatively say M to compile the driver as a module,
77 which will be called da9052_wdt.
79 config DA9055_WATCHDOG
80 tristate "Dialog Semiconductor DA9055 Watchdog"
84 If you say yes here you get support for watchdog on the Dialog
85 Semiconductor DA9055 PMIC.
87 This driver can also be built as a module. If so, the module
88 will be called da9055_wdt.
90 config DA9063_WATCHDOG
91 tristate "Dialog DA9063 Watchdog"
95 Support for the watchdog in the DA9063 PMIC.
97 This driver can be built as a module. The module name is da9063_wdt.
100 tristate "Watchdog device controlled through GPIO-line"
104 If you say yes here you get support for watchdog device
105 controlled through GPIO-line.
107 config MENF21BMC_WATCHDOG
108 tristate "MEN 14F021P00 BMC Watchdog"
109 depends on MFD_MENF21BMC
112 Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
114 This driver can also be built as a module. If so the module
115 will be called menf21bmc_wdt.
117 config WM831X_WATCHDOG
118 tristate "WM831x watchdog"
119 depends on MFD_WM831X
122 Support for the watchdog in the WM831x AudioPlus PMICs. When
123 the watchdog triggers the system will be reset.
125 config WM8350_WATCHDOG
126 tristate "WM8350 watchdog"
127 depends on MFD_WM8350
130 Support for the watchdog in the WM8350 AudioPlus PMIC. When
131 the watchdog triggers the system will be reset.
133 config XILINX_WATCHDOG
134 tristate "Xilinx Watchdog timer"
138 Watchdog driver for the xps_timebase_wdt ip core.
140 To compile this driver as a module, choose M here: the
141 module will be called of_xilinx_wdt.
147 config ARM_SP805_WATCHDOG
148 tristate "ARM SP805 Watchdog"
149 depends on (ARM || ARM64) && ARM_AMBA
152 ARM Primecell SP805 Watchdog timer. This will reboot your system when
153 the timeout is reached.
155 config AT91RM9200_WATCHDOG
156 tristate "AT91RM9200 watchdog"
157 depends on SOC_AT91RM9200
159 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
160 system when the timeout is reached.
162 config AT91SAM9X_WATCHDOG
163 tristate "AT91SAM9X / AT91CAP9 watchdog"
167 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
168 reboot your system when the timeout is reached.
170 config CADENCE_WATCHDOG
171 tristate "Cadence Watchdog Timer"
175 Say Y here if you want to include support for the watchdog
176 timer in the Xilinx Zynq.
178 config 21285_WATCHDOG
179 tristate "DC21285 watchdog"
180 depends on FOOTBRIDGE
182 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
183 here if you wish to use this. Alternatively say M to compile the
184 driver as a module, which will be called wdt285.
186 This driver does not work on all machines. In particular, early CATS
187 boards have hardware problems that will cause the machine to simply
188 lock up if the watchdog fires.
190 "If in doubt, leave it out" - say N.
193 tristate "NetWinder WB83C977 watchdog"
194 depends on FOOTBRIDGE && ARCH_NETWINDER
196 Say Y here to include support for the WB977 watchdog included in
197 NetWinder machines. Alternatively say M to compile the driver as
198 a module, which will be called wdt977.
200 Not sure? It's safe to say N.
202 config IXP4XX_WATCHDOG
203 tristate "IXP4xx Watchdog"
204 depends on ARCH_IXP4XX
206 Say Y here if to include support for the watchdog timer
207 in the Intel IXP4xx network processors. This driver can
208 be built as a module by choosing M. The module will
209 be called ixp4xx_wdt.
211 Note: The internal IXP4xx watchdog does a soft CPU reset
212 which doesn't reset any peripherals. There are circumstances
213 where the watchdog will fail to reset the board correctly
214 (e.g., if the boot ROM is in an unreadable state).
216 Say N if you are unsure.
218 config KS8695_WATCHDOG
219 tristate "KS8695 watchdog"
220 depends on ARCH_KS8695
222 Watchdog timer embedded into KS8695 processor. This will reboot your
223 system when the timeout is reached.
225 config HAVE_S3C2410_WATCHDOG
228 This will include watchdog timer support for Samsung SoCs. If
229 you want to include watchdog support for any machine, kindly
230 select this in the respective mach-XXXX/Kconfig file.
232 config S3C2410_WATCHDOG
233 tristate "S3C2410 Watchdog"
234 depends on HAVE_S3C2410_WATCHDOG
236 select MFD_SYSCON if ARCH_EXYNOS5
238 Watchdog timer block in the Samsung SoCs. This will reboot
239 the system when the timer expires with the watchdog enabled.
241 The driver is limited by the speed of the system's PCLK
242 signal, so with reasonably fast systems (PCLK around 50-66MHz)
243 then watchdog intervals of over approximately 20seconds are
246 The driver can be built as a module by choosing M, and will
247 be called s3c2410_wdt
249 config SA1100_WATCHDOG
250 tristate "SA1100/PXA2xx watchdog"
251 depends on ARCH_SA1100 || ARCH_PXA
253 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
254 reboot your system when timeout is reached.
256 NOTE: once enabled, this timer cannot be disabled.
258 To compile this driver as a module, choose M here: the
259 module will be called sa1100_wdt.
262 tristate "Synopsys DesignWare watchdog"
265 Say Y here if to include support for the Synopsys DesignWare
266 watchdog timer found in many chips.
267 To compile this driver as a module, choose M here: the
268 module will be called dw_wdt.
270 config EP93XX_WATCHDOG
271 tristate "EP93xx Watchdog"
272 depends on ARCH_EP93XX
275 Say Y here if to include support for the watchdog timer
276 embedded in the Cirrus Logic EP93xx family of devices.
278 To compile this driver as a module, choose M here: the
279 module will be called ep93xx_wdt.
282 tristate "OMAP Watchdog"
283 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
286 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
287 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
289 config PNX4008_WATCHDOG
290 tristate "LPC32XX Watchdog"
291 depends on ARCH_LPC32XX
294 Say Y here if to include support for the watchdog timer
295 in the LPC32XX processor.
296 This driver can be built as a module by choosing M. The module
297 will be called pnx4008_wdt.
299 Say N if you are unsure.
302 tristate "IOP Watchdog"
303 depends on ARCH_IOP13XX
304 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
306 Say Y here if to include support for the watchdog timer
307 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
308 be built as a module by choosing M. The module will
311 Note: The IOP13XX watchdog does an Internal Bus Reset which will
312 affect both cores and the peripherals of the IOP. The ATU-X
313 and/or ATUe configuration registers will remain intact, but if
314 operating as an Root Complex and/or Central Resource, the PCI-X
315 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
317 config DAVINCI_WATCHDOG
318 tristate "DaVinci watchdog"
319 depends on ARCH_DAVINCI || ARCH_KEYSTONE
322 Say Y here if to include support for the watchdog timer
323 in the DaVinci DM644x/DM646x or Keystone processors.
324 To compile this driver as a module, choose M here: the
325 module will be called davinci_wdt.
327 NOTE: once enabled, this timer cannot be disabled.
328 Say N if you are unsure.
330 config ORION_WATCHDOG
331 tristate "Orion watchdog"
332 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU
335 Say Y here if to include support for the watchdog timer
336 in the Marvell Orion5x and Kirkwood ARM SoCs.
337 To compile this driver as a module, choose M here: the
338 module will be called orion_wdt.
340 config RN5T618_WATCHDOG
341 tristate "Ricoh RN5T618 watchdog"
342 depends on MFD_RN5T618
345 If you say yes here you get support for watchdog on the Ricoh
348 This driver can also be built as a module. If so, the module
349 will be called rn5t618_wdt.
351 config SUNXI_WATCHDOG
352 tristate "Allwinner SoCs watchdog support"
353 depends on ARCH_SUNXI
356 Say Y here to include support for the watchdog timer
358 To compile this driver as a module, choose M here: the
359 module will be called sunxi_wdt.
361 config COH901327_WATCHDOG
362 bool "ST-Ericsson COH 901 327 watchdog"
364 default y if MACH_U300
367 Say Y here to include Watchdog timer support for the
368 watchdog embedded into the ST-Ericsson U300 series platforms.
369 This watchdog is used to reset the system and thus cannot be
370 compiled as a module.
372 config TWL4030_WATCHDOG
373 tristate "TWL4030 Watchdog"
374 depends on TWL4030_CORE
377 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
378 watchdog timer support for TWL4030 chips.
380 config STMP3XXX_RTC_WATCHDOG
381 tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
382 depends on RTC_DRV_STMP
385 Say Y here to include support for the watchdog timer inside
386 the RTC for the STMP37XX/378X or i.MX23/28 SoC.
387 To compile this driver as a module, choose M here: the
388 module will be called stmp3xxx_rtc_wdt.
390 config NUC900_WATCHDOG
391 tristate "Nuvoton NUC900 watchdog"
392 depends on ARCH_W90X900
394 Say Y here if to include support for the watchdog timer
395 for the Nuvoton NUC900 series SoCs.
396 To compile this driver as a module, choose M here: the
397 module will be called nuc900_wdt.
399 config TS72XX_WATCHDOG
400 tristate "TS-72XX SBC Watchdog"
401 depends on MACH_TS72XX
403 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
404 watchdog timer implemented in a external CPLD chip. Say Y here
405 if you want to support for the watchdog timer on TS-72XX boards.
407 To compile this driver as a module, choose M here: the
408 module will be called ts72xx_wdt.
410 config MAX63XX_WATCHDOG
411 tristate "Max63xx watchdog"
412 depends on ARM && HAS_IOMEM
415 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
418 tristate "IMX2+ Watchdog"
423 This is the driver for the hardware watchdog
424 on the Freescale IMX2 and later processors.
425 If you have one of these processors and wish to have
426 watchdog support enabled, say Y, otherwise say N.
428 To compile this driver as a module, choose M here: the
429 module will be called imx2_wdt.
431 config UX500_WATCHDOG
432 tristate "ST-Ericsson Ux500 watchdog"
433 depends on MFD_DB8500_PRCMU
437 Say Y here to include Watchdog timer support for the watchdog
438 existing in the prcmu of ST-Ericsson Ux500 series platforms.
440 To compile this driver as a module, choose M here: the
441 module will be called ux500_wdt.
444 tristate "Retu watchdog"
448 Retu watchdog driver for Nokia Internet Tablets (770, N800,
449 N810). At least on N800 the watchdog cannot be disabled, so
450 this driver is essential and you should enable it.
452 To compile this driver as a module, choose M here: the
453 module will be called retu_wdt.
456 tristate "MOXART watchdog"
457 depends on ARCH_MOXART
459 Say Y here to include Watchdog timer support for the watchdog
460 existing on the MOXA ART SoC series platforms.
462 To compile this driver as a module, choose M here: the
463 module will be called moxart_wdt.
465 config SIRFSOC_WATCHDOG
466 tristate "SiRFSOC watchdog"
471 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
472 the watchdog triggers the system will be reset.
474 config TEGRA_WATCHDOG
475 tristate "Tegra watchdog"
476 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
479 Say Y here to include support for the watchdog timer
480 embedded in NVIDIA Tegra SoCs.
482 To compile this driver as a module, choose M here: the
483 module will be called tegra_wdt.
486 tristate "QCOM watchdog"
491 Say Y here to include Watchdog timer support for the watchdog found
492 on QCOM chipsets. Currently supported targets are the MSM8960,
493 APQ8064, and IPQ8064.
495 To compile this driver as a module, choose M here: the
496 module will be called qcom_wdt.
498 config MESON_WATCHDOG
499 tristate "Amlogic Meson SoCs watchdog support"
500 depends on ARCH_MESON
503 Say Y here to include support for the watchdog timer
504 in Amlogic Meson SoCs.
505 To compile this driver as a module, choose M here: the
506 module will be called meson_wdt.
508 config MEDIATEK_WATCHDOG
509 tristate "Mediatek SoCs watchdog support"
510 depends on ARCH_MEDIATEK
513 Say Y here to include support for the watchdog timer
515 To compile this driver as a module, choose M here: the
516 module will be called mtk_wdt.
520 config AT32AP700X_WDT
521 tristate "AT32AP700x watchdog"
522 depends on CPU_AT32AP700X
524 Watchdog timer embedded into AT32AP700x devices. This will reboot
525 your system when the timeout is reached.
527 # BLACKFIN Architecture
530 tristate "Blackfin On-Chip Watchdog Timer"
533 If you say yes here you will get support for the Blackfin On-Chip
534 Watchdog Timer. If you have one of these processors and wish to
535 have watchdog support enabled, say Y, otherwise say N.
537 To compile this driver as a module, choose M here: the
538 module will be called bfin_wdt.
544 # X86 (i386 + ia64 + x86_64) Architecture
547 tristate "Acquire SBC Watchdog Timer"
550 This is the driver for the hardware watchdog on Single Board
551 Computers produced by Acquire Inc (and others). This watchdog
552 simply watches your kernel to make sure it doesn't freeze, and if
553 it does, it reboots your computer after a certain amount of time.
555 To compile this driver as a module, choose M here: the
556 module will be called acquirewdt.
558 Most people will say N.
561 tristate "Advantech SBC Watchdog Timer"
564 If you are configuring a Linux kernel for the Advantech single-board
565 computer, say `Y' here to support its built-in watchdog timer
566 feature. More information can be found at
567 <http://www.advantech.com.tw/products/>
570 tristate "ALi M1535 PMU Watchdog Timer"
571 depends on X86 && PCI
573 This is the driver for the hardware watchdog on the ALi M1535 PMU.
575 To compile this driver as a module, choose M here: the
576 module will be called alim1535_wdt.
578 Most people will say N.
581 tristate "ALi M7101 PMU Computer Watchdog"
584 This is the driver for the hardware watchdog on the ALi M7101 PMU
585 as used in the x86 Cobalt servers and also found in some
586 SPARC Netra servers too.
588 To compile this driver as a module, choose M here: the
589 module will be called alim7101_wdt.
591 Most people will say N.
594 tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
597 This is the driver for the hardware watchdog on the Fintek
598 F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
600 You can compile this driver directly into the kernel, or use
601 it as a module. The module will be called f71808e_wdt.
604 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
605 depends on X86 && PCI
607 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
608 (Total Cost of Ownership) timer is a watchdog timer that will reboot
609 the machine after its expiration. The expiration time can be
610 configured with the "heartbeat" parameter.
612 To compile this driver as a module, choose M here: the
613 module will be called sp5100_tco.
616 tristate "AMD Geode CS5535/CS5536 Watchdog"
617 depends on CS5535_MFGPT
619 This driver enables a watchdog capability built into the
620 CS5535/CS5536 companion chips for the AMD Geode GX and LX
621 processors. This watchdog watches your kernel to make sure
622 it doesn't freeze, and if it does, it reboots your computer after
623 a certain amount of time.
625 You can compile this driver directly into the kernel, or use
626 it as a module. The module will be called geodewdt.
629 tristate "AMD Elan SC520 processor Watchdog"
632 This is the driver for the hardware watchdog built in to the
633 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
634 This watchdog simply watches your kernel to make sure it doesn't
635 freeze, and if it does, it reboots your computer after a certain
638 You can compile this driver directly into the kernel, or use
639 it as a module. The module will be called sc520_wdt.
641 config SBC_FITPC2_WATCHDOG
642 tristate "Compulab SBC-FITPC2 watchdog"
645 This is the driver for the built-in watchdog timer on the fit-PC2,
646 fit-PC2i, CM-iAM single-board computers made by Compulab.
648 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
649 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
651 Entering BIOS setup temporary disables watchdog operation regardless to current state,
652 so system will not be restarted while user in BIOS setup.
654 Once watchdog was enabled the system will be restarted every
655 "Watchdog Timer Value" period, so to prevent it user can restart or
656 disable the watchdog.
658 To compile this driver as a module, choose M here: the
659 module will be called sbc_fitpc2_wdt.
661 Most people will say N.
664 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
667 Enable support for the watchdog timer on the Eurotech CPU-1220 and
668 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
669 information are at <http://www.eurotech.it/>.
672 tristate "IB700 SBC Watchdog Timer"
675 This is the driver for the hardware watchdog on the IB700 Single
676 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
677 simply watches your kernel to make sure it doesn't freeze, and if
678 it does, it reboots your computer after a certain amount of time.
680 This driver is like the WDT501 driver but for slightly different hardware.
682 To compile this driver as a module, choose M here: the
683 module will be called ib700wdt.
685 Most people will say N.
688 tristate "IBM Automatic Server Restart"
691 This is the driver for the IBM Automatic Server Restart watchdog
692 timer built-in into some eServer xSeries machines.
694 To compile this driver as a module, choose M here: the
695 module will be called ibmasr.
698 tristate "ICP Single Board Computer Watchdog Timer"
701 This is a driver for the hardware watchdog on the ICP Single
702 Board Computer. This driver is working on (at least) the following
703 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
705 To compile this driver as a module, choose M here: the
706 module will be called wafer5823wdt.
709 tristate "Intel 6300ESB Timer/Watchdog"
712 Hardware driver for the watchdog timer built into the Intel
713 6300ESB controller hub.
715 To compile this driver as a module, choose M here: the
716 module will be called i6300esb.
719 tristate "Intel Atom E6xx Watchdog"
720 depends on X86 && PCI
725 Hardware driver for the watchdog timer built into the Intel
726 Atom E6XX (TunnelCreek) processor.
728 To compile this driver as a module, choose M here: the
729 module will be called ie6xx_wdt.
731 config INTEL_SCU_WATCHDOG
732 bool "Intel SCU Watchdog for Mobile Platforms"
733 depends on X86_INTEL_MID
735 Hardware driver for the watchdog time built into the Intel SCU
736 for Intel Mobile Platforms.
738 To compile this driver as a module, choose M here.
740 config INTEL_MID_WATCHDOG
741 tristate "Intel MID Watchdog Timer"
742 depends on X86_INTEL_MID
745 Watchdog timer driver built into the Intel SCU for Intel MID
748 This driver currently supports only the watchdog evolution
749 implementation in SCU, available for Merrifield generation.
751 To compile this driver as a module, choose M here.
754 tristate "Intel TCO Timer/Watchdog"
755 depends on (X86 || IA64) && PCI
759 Hardware driver for the intel TCO timer based watchdog devices.
760 These drivers are included in the Intel 82801 I/O Controller
761 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
764 The TCO (Total Cost of Ownership) timer is a watchdog timer
765 that will reboot the machine after its second expiration. The
766 expiration time can be configured with the "heartbeat" parameter.
768 On some motherboards the driver may fail to reset the chipset's
769 NO_REBOOT flag which prevents the watchdog from rebooting the
770 machine. If this is the case you will get a kernel message like
771 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
773 To compile this driver as a module, choose M here: the
774 module will be called iTCO_wdt.
776 config ITCO_VENDOR_SUPPORT
777 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
780 Add vendor specific support to the intel TCO timer based watchdog
781 devices. At this moment we only have additional support for some
782 SuperMicro Inc. motherboards.
785 tristate "IT8712F (Smart Guardian) Watchdog Timer"
788 This is the driver for the built-in watchdog timer on the IT8712F
789 Super I/0 chipset used on many motherboards.
791 If the driver does not work, then make sure that the game port in
794 To compile this driver as a module, choose M here: the
795 module will be called it8712f_wdt.
798 tristate "IT87 Watchdog Timer"
801 This is the driver for the hardware watchdog on the ITE IT8702,
802 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728
805 If the driver does not work, then make sure that the game port in
808 This watchdog simply watches your kernel to make sure it doesn't
809 freeze, and if it does, it reboots your computer after a certain
812 To compile this driver as a module, choose M here: the module will
816 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
817 depends on X86 && PCI
819 A software monitoring watchdog and NMI sourcing driver. This driver
820 will detect lockups and provide a stack trace. This is a driver that
821 will only load on an HP ProLiant system with a minimum of iLO2 support.
822 To compile this driver as a module, choose M here: the module will be
826 tristate "Kontron COM Watchdog Timer"
827 depends on MFD_KEMPLD
830 Support for the PLD watchdog on some Kontron ETX and COMexpress
833 This driver can also be built as a module. If so, the module will be
836 config HPWDT_NMI_DECODING
837 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
838 depends on HP_WATCHDOG
841 When an NMI occurs this feature will make the necessary BIOS calls to
842 log the cause of the NMI.
845 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
848 This is a driver for National Semiconductor PC87307/PC97307 hardware
849 watchdog cards as found on the SC1200. This watchdog is mainly used
850 for power management purposes and can be used to power down the device
851 during inactivity periods (includes interrupt activity monitoring).
853 To compile this driver as a module, choose M here: the
854 module will be called sc1200wdt.
856 Most people will say N.
859 tristate "National Semiconductor SCx200 Watchdog"
860 depends on SCx200 && PCI
862 Enable the built-in watchdog timer support on the National
863 Semiconductor SCx200 processors.
865 If compiled as a module, it will be called scx200_wdt.
868 tristate "NS PC87413 watchdog"
871 This is the driver for the hardware watchdog on the PC87413 chipset
872 This watchdog simply watches your kernel to make sure it doesn't
873 freeze, and if it does, it reboots your computer after a certain
876 To compile this driver as a module, choose M here: the
877 module will be called pc87413_wdt.
879 Most people will say N.
882 tristate "nVidia TCO Timer/Watchdog"
883 depends on X86 && PCI
885 Hardware driver for the TCO timer built into the nVidia Hub family
886 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
887 watchdog timer that will reboot the machine after its second
888 expiration. The expiration time can be configured with the
889 "heartbeat" parameter.
891 On some motherboards the driver may fail to reset the chipset's
892 NO_REBOOT flag which prevents the watchdog from rebooting the
893 machine. If this is the case you will get a kernel message like
894 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
896 To compile this driver as a module, choose M here: the
897 module will be called nv_tco.
900 tristate "RDC R-321x SoC watchdog"
901 depends on X86_RDC321X
903 This is the driver for the built in hardware watchdog
904 in the RDC R-321x SoC.
906 To compile this driver as a module, choose M here: the
907 module will be called rdc321x_wdt.
910 tristate "SBC-60XX Watchdog Timer"
913 This driver can be used with the watchdog timer found on some
914 single board computers, namely the 6010 PII based computer.
915 It may well work with other cards. It reads port 0x443 to enable
916 and re-set the watchdog timer, and reads port 0x45 to disable
917 the watchdog. If you have a card that behave in similar ways,
918 you can probably make this driver work with your card as well.
920 You can compile this driver directly into the kernel, or use
921 it as a module. The module will be called sbc60xxwdt.
924 tristate "SBC8360 Watchdog Timer"
928 This is the driver for the hardware watchdog on the SBC8360 Single
929 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
931 To compile this driver as a module, choose M here: the
932 module will be called sbc8360.
934 Most people will say N.
937 tristate "SBC Nano 7240 Watchdog Timer"
938 depends on X86_32 && !UML
940 This is the driver for the hardware watchdog found on the IEI
941 single board computers EPIC Nano 7240 (and likely others). This
942 watchdog simply watches your kernel to make sure it doesn't freeze,
943 and if it does, it reboots your computer after a certain amount of
946 To compile this driver as a module, choose M here: the
947 module will be called sbc7240_wdt.
950 tristate "SMA CPU5 Watchdog"
954 To compile this driver as a module, choose M here: the
955 module will be called cpu5wdt.
957 config SMSC_SCH311X_WDT
958 tristate "SMSC SCH311X Watchdog Timer"
961 This is the driver for the hardware watchdog timer on the
962 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
963 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
966 To compile this driver as a module, choose M here: the
967 module will be called sch311x_wdt.
969 config SMSC37B787_WDT
970 tristate "Winbond SMsC37B787 Watchdog Timer"
973 This is the driver for the hardware watchdog component on the
974 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
975 from Vision Systems and maybe others.
977 This watchdog simply watches your kernel to make sure it doesn't
978 freeze, and if it does, it reboots your computer after a certain
981 Usually a userspace daemon will notify the kernel WDT driver that
982 userspace is still alive, at regular intervals.
984 To compile this driver as a module, choose M here: the
985 module will be called smsc37b787_wdt.
987 Most people will say N.
990 tristate "VIA Watchdog Timer"
991 depends on X86 && PCI
994 This is the driver for the hardware watchdog timer on VIA
995 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
997 To compile this driver as a module, choose M here; the module
998 will be called via_wdt.
1000 Most people will say N.
1003 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1005 select WATCHDOG_CORE
1007 This is the driver for the hardware watchdog on the following
1009 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1021 This watchdog simply watches your kernel to make sure it doesn't
1022 freeze, and if it does, it reboots your computer after a certain
1025 To compile this driver as a module, choose M here: the
1026 module will be called w83627hf_wdt.
1028 Most people will say N.
1031 tristate "W83877F (EMACS) Watchdog Timer"
1034 This is the driver for the hardware watchdog on the W83877F chipset
1035 as used in EMACS PC-104 motherboards (and likely others). This
1036 watchdog simply watches your kernel to make sure it doesn't freeze,
1037 and if it does, it reboots your computer after a certain amount of
1040 To compile this driver as a module, choose M here: the
1041 module will be called w83877f_wdt.
1043 Most people will say N.
1046 tristate "W83977F (PCM-5335) Watchdog Timer"
1049 This is the driver for the hardware watchdog on the W83977F I/O chip
1050 as used in AAEON's PCM-5335 SBC (and likely others). This
1051 watchdog simply watches your kernel to make sure it doesn't freeze,
1052 and if it does, it reboots your computer after a certain amount of
1055 To compile this driver as a module, choose M here: the
1056 module will be called w83977f_wdt.
1059 tristate "ZF MachZ Watchdog"
1062 If you are using a ZF Micro MachZ processor, say Y here, otherwise
1063 N. This is the driver for the watchdog timer built-in on that
1064 processor using ZF-Logic interface. This watchdog simply watches
1065 your kernel to make sure it doesn't freeze, and if it does, it
1066 reboots your computer after a certain amount of time.
1068 To compile this driver as a module, choose M here: the
1069 module will be called machzwd.
1071 config SBC_EPX_C3_WATCHDOG
1072 tristate "Winsystems SBC EPX-C3 watchdog"
1075 This is the driver for the built-in watchdog timer on the EPX-C3
1076 Single-board computer made by Winsystems, Inc.
1078 *Note*: This hardware watchdog is not probeable and thus there
1079 is no way to know if writing to its IO address will corrupt
1080 your system or have any real effect. The only way to be sure
1081 that this driver does what you want is to make sure you
1082 are running it on an EPX-C3 from Winsystems with the watchdog
1083 timer at IO address 0x1ee and 0x1ef. It will write to both those
1084 IO ports. Basically, the assumption is made that if you compile
1085 this driver into your kernel and/or load it as a module, that you
1086 know what you are doing and that you are in fact running on an
1089 To compile this driver as a module, choose M here: the
1090 module will be called sbc_epx_c3.
1096 config M54xx_WATCHDOG
1097 tristate "MCF54xx watchdog support"
1100 To compile this driver as a module, choose M here: the
1101 module will be called m54xx_wdt.
1103 # MicroBlaze Architecture
1108 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1111 Hardware driver for the built-in watchdog timer on the Atheros
1112 AR71XX/AR724X/AR913X SoCs.
1115 tristate "Broadcom BCM47xx Watchdog Timer"
1116 depends on BCM47XX || ARCH_BCM_5301X
1117 select WATCHDOG_CORE
1119 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1122 tristate "IDT RC32434 SoC Watchdog Timer"
1123 depends on MIKROTIK_RB532
1125 Hardware driver for the IDT RC32434 SoC built-in
1128 To compile this driver as a module, choose M here: the
1129 module will be called rc32434_wdt.
1132 tristate "Indy/I2 Hardware Watchdog"
1133 depends on SGI_HAS_INDYDOG
1135 Hardware driver for the Indy's/I2's watchdog. This is a
1136 watchdog timer that will reboot the machine after a 60 second
1137 timer expired and no process has written to /dev/watchdog during
1141 tristate "Ingenic jz4740 SoC hardware watchdog"
1142 depends on MACH_JZ4740
1143 select WATCHDOG_CORE
1145 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1148 tristate "MTX-1 Hardware Watchdog"
1149 depends on MIPS_MTX1
1151 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1152 will reboot the machine after a 100 seconds timer expired.
1155 tristate "PNX833x Hardware Watchdog"
1156 depends on SOC_PNX8335
1158 Hardware driver for the PNX833x's watchdog. This is a
1159 watchdog timer that will reboot the machine after a programmable
1160 timer has expired and no process has written to /dev/watchdog during
1164 tristate "Sibyte SoC hardware watchdog"
1167 Watchdog driver for the built in watchdog hardware in Sibyte
1168 SoC processors. There are apparently two watchdog timers
1169 on such processors; this driver supports only the first one,
1170 because currently Linux only supports exporting one watchdog
1173 To compile this driver as a loadable module, choose M here.
1174 The module will be called sb_wdog.
1177 tristate "TI AR7 Watchdog Timer"
1180 Hardware driver for the TI AR7 Watchdog Timer.
1183 tristate "Toshiba TXx9 Watchdog Timer"
1184 depends on CPU_TX39XX || CPU_TX49XX
1185 select WATCHDOG_CORE
1187 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1190 tristate "Cavium OCTEON SOC family Watchdog Timer"
1191 depends on CAVIUM_OCTEON_SOC
1193 select EXPORT_UASM if OCTEON_WDT = m
1195 Hardware driver for OCTEON's on chip watchdog timer.
1196 Enables the watchdog for all cores running Linux. It
1197 installs a NMI handler and pokes the watchdog based on an
1198 interrupt. On first expiration of the watchdog, the
1199 interrupt handler pokes it. The second expiration causes an
1200 NMI that prints a message. The third expiration causes a
1203 When userspace has /dev/watchdog open, no poking is done
1204 from the first interrupt, it is then only poked when the
1208 tristate "Broadcom BCM63xx hardware watchdog"
1211 Watchdog driver for the built in watchdog hardware in Broadcom
1214 To compile this driver as a loadable module, choose M here.
1215 The module will be called bcm63xx_wdt.
1218 tristate "Broadcom BCM2835 hardware watchdog"
1219 depends on ARCH_BCM2835
1220 select WATCHDOG_CORE
1222 Watchdog driver for the built in watchdog hardware in Broadcom
1225 To compile this driver as a loadable module, choose M here.
1226 The module will be called bcm2835_wdt.
1229 tristate "BCM Kona Watchdog"
1230 depends on ARCH_BCM_MOBILE
1231 select WATCHDOG_CORE
1233 Support for the watchdog timer on the following Broadcom BCM281xx
1234 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1237 Say 'Y' or 'M' here to enable the driver. The module will be called
1240 config BCM_KONA_WDT_DEBUG
1241 bool "DEBUGFS support for BCM Kona Watchdog"
1242 depends on BCM_KONA_WDT
1244 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1245 access to the driver's internal data structures as well as watchdog
1246 timer hardware registres.
1248 If in doubt, say 'N'.
1251 tristate "Imagination Technologies PDC Watchdog Timer"
1252 depends on HAS_IOMEM
1253 depends on METAG || MIPS || COMPILE_TEST
1255 Driver for Imagination Technologies PowerDown Controller
1258 To compile this driver as a loadable module, choose M here.
1259 The module will be called imgpdc_wdt.
1262 tristate "Lantiq SoC watchdog"
1265 Hardware driver for the Lantiq SoC Watchdog Timer.
1268 tristate "Ralink SoC watchdog"
1269 select WATCHDOG_CORE
1272 Hardware driver for the Ralink SoC Watchdog Timer.
1274 # PARISC Architecture
1276 # POWERPC Architecture
1279 tristate "GE Watchdog Timer"
1282 Watchdog timer found in a number of GE single board computers.
1285 bool "MPC52xx Watchdog Timer"
1286 depends on PPC_MPC52xx
1288 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1291 tristate "MPC8xxx Platform Watchdog Timer"
1292 depends on PPC_8xx || PPC_83xx || PPC_86xx
1293 select WATCHDOG_CORE
1295 This driver is for a SoC level watchdog that exists on some
1296 Freescale PowerPC processors. So far this driver supports:
1301 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1304 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1308 tristate "PIKA FPGA Watchdog"
1312 This enables the watchdog in the PIKA FPGA. Currently used on
1316 tristate "PowerPC Book-E Watchdog Timer"
1317 depends on BOOKE || 4xx
1318 select WATCHDOG_CORE
1320 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1321 MPC85xx SOCs and the IBM PowerPC 440.
1323 Please see Documentation/watchdog/watchdog-api.txt for
1326 config BOOKE_WDT_DEFAULT_TIMEOUT
1327 int "PowerPC Book-E Watchdog Timer Default Timeout"
1328 depends on BOOKE_WDT
1329 default 38 if PPC_FSL_BOOK3E
1330 range 0 63 if PPC_FSL_BOOK3E
1331 default 3 if !PPC_FSL_BOOK3E
1332 range 0 3 if !PPC_FSL_BOOK3E
1334 Select the default watchdog timer period to be used by the PowerPC
1335 Book-E watchdog driver. A watchdog "event" occurs when the bit
1336 position represented by this number transitions from zero to one.
1338 For Freescale Book-E processors, this is a number between 0 and 63.
1339 For other Book-E processors, this is a number between 0 and 3.
1341 The value can be overridden by the wdt_period command-line parameter.
1344 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1345 select WATCHDOG_CORE
1348 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1350 The driver can also be built as a module. If so, the module will be
1353 If unsure select N here.
1355 # PPC64 Architecture
1357 config WATCHDOG_RTAS
1358 tristate "RTAS watchdog"
1361 This driver adds watchdog support for the RTAS watchdog.
1363 To compile this driver as a module, choose M here. The module
1364 will be called wdrtas.
1368 config DIAG288_WATCHDOG
1369 tristate "System z diag288 Watchdog"
1371 select WATCHDOG_CORE
1373 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1374 provide a virtual watchdog timer to their guest that cause a
1375 user define Control Program command to be executed after a
1377 LPAR provides a very similar interface. This driver handles
1380 To compile this driver as a module, choose M here. The module
1381 will be called diag288_wdt.
1383 # SUPERH (sh + sh64) Architecture
1386 tristate "SuperH Watchdog"
1387 depends on SUPERH && (CPU_SH3 || CPU_SH4)
1388 select WATCHDOG_CORE
1390 This driver adds watchdog support for the integrated watchdog in the
1391 SuperH processors. If you have one of these processors and wish
1392 to have watchdog support enabled, say Y, otherwise say N.
1394 As a side note, saying Y here will automatically boost HZ to 1000
1395 so that the timer has a chance to clear the overflow counter. On
1396 slower systems (such as the SH-2 and SH-3) this will likely yield
1397 some performance issues. As such, the WDT should be avoided here
1398 unless it is absolutely necessary.
1400 To compile this driver as a module, choose M here: the
1401 module will be called shwdt.
1403 # SPARC Architecture
1405 # SPARC64 Architecture
1407 config WATCHDOG_CP1XXX
1408 tristate "CP1XXX Hardware Watchdog support"
1409 depends on SPARC64 && PCI
1411 This is the driver for the hardware watchdog timers present on
1412 Sun Microsystems CompactPCI models CP1400 and CP1500.
1414 To compile this driver as a module, choose M here: the
1415 module will be called cpwatchdog.
1417 If you do not have a CompactPCI model CP1400 or CP1500, or
1418 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1419 you should say N to this option.
1422 tristate "RIO Hardware Watchdog support"
1423 depends on SPARC64 && PCI
1425 Say Y here to support the hardware watchdog capability on Sun RIO
1426 machines. The watchdog timeout period is normally one minute but
1427 can be changed with a boot-time parameter.
1429 # XTENSA Architecture
1434 tristate "Xen Watchdog support"
1437 Say Y here to support the hypervisor watchdog capability provided
1438 by Xen 4.0 and newer. The watchdog timeout period is normally one
1439 minute but can be changed with a boot-time parameter.
1442 tristate "UML watchdog"
1446 # ISA-based Watchdog Cards
1449 comment "ISA-based Watchdog Cards"
1453 tristate "Berkshire Products ISA-PC Watchdog"
1456 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1457 This card simply watches your kernel to make sure it doesn't freeze,
1458 and if it does, it reboots your computer after a certain amount of
1459 time. This driver is like the WDT501 driver but for different
1460 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1461 watchdog cards can be ordered from <http://www.berkprod.com/>.
1463 To compile this driver as a module, choose M here: the
1464 module will be called pcwd.
1466 Most people will say N.
1469 tristate "Mixcom Watchdog"
1472 This is a driver for the Mixcom hardware watchdog cards. This
1473 watchdog simply watches your kernel to make sure it doesn't freeze,
1474 and if it does, it reboots your computer after a certain amount of
1477 To compile this driver as a module, choose M here: the
1478 module will be called mixcomwd.
1480 Most people will say N.
1483 tristate "WDT Watchdog timer"
1486 If you have a WDT500P or WDT501P watchdog board, say Y here,
1487 otherwise N. It is not possible to probe for this board, which means
1488 that you have to inform the kernel about the IO port and IRQ that
1489 is needed (you can do this via the io and irq parameters)
1491 To compile this driver as a module, choose M here: the
1492 module will be called wdt.
1495 # PCI-based Watchdog Cards
1498 comment "PCI-based Watchdog Cards"
1501 config PCIPCWATCHDOG
1502 tristate "Berkshire Products PCI-PC Watchdog"
1505 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1506 This card simply watches your kernel to make sure it doesn't freeze,
1507 and if it does, it reboots your computer after a certain amount of
1508 time. The card can also monitor the internal temperature of the PC.
1509 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1511 To compile this driver as a module, choose M here: the
1512 module will be called pcwd_pci.
1514 Most people will say N.
1517 tristate "PCI-WDT500/501 Watchdog timer"
1520 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1522 If you have a PCI-WDT501 watchdog board then you can enable the
1523 temperature sensor by setting the type parameter to 501.
1525 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1526 can do this via the tachometer parameter. Only do this if you have a
1527 fan tachometer actually set up.
1529 To compile this driver as a module, choose M here: the
1530 module will be called wdt_pci.
1533 # USB-based Watchdog Cards
1536 comment "USB-based Watchdog Cards"
1539 config USBPCWATCHDOG
1540 tristate "Berkshire Products USB-PC Watchdog"
1543 This is the driver for the Berkshire Products USB-PC Watchdog card.
1544 This card simply watches your kernel to make sure it doesn't freeze,
1545 and if it does, it reboots your computer after a certain amount of
1546 time. The card can also monitor the internal temperature of the PC.
1547 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1549 To compile this driver as a module, choose M here: the
1550 module will be called pcwd_usb.
1552 Most people will say N.