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"
137 Watchdog driver for the xps_timebase_wdt ip core.
139 To compile this driver as a module, choose M here: the
140 module will be called of_xilinx_wdt.
146 config ARM_SP805_WATCHDOG
147 tristate "ARM SP805 Watchdog"
148 depends on (ARM || ARM64) && ARM_AMBA
151 ARM Primecell SP805 Watchdog timer. This will reboot your system when
152 the timeout is reached.
154 config AT91RM9200_WATCHDOG
155 tristate "AT91RM9200 watchdog"
156 depends on ARCH_AT91RM9200
158 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
159 system when the timeout is reached.
161 config AT91SAM9X_WATCHDOG
162 tristate "AT91SAM9X / AT91CAP9 watchdog"
163 depends on ARCH_AT91 && !ARCH_AT91RM9200
166 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
167 reboot your system when the timeout is reached.
169 config CADENCE_WATCHDOG
170 tristate "Cadence Watchdog Timer"
174 Say Y here if you want to include support for the watchdog
175 timer in the Xilinx Zynq.
177 config 21285_WATCHDOG
178 tristate "DC21285 watchdog"
179 depends on FOOTBRIDGE
181 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
182 here if you wish to use this. Alternatively say M to compile the
183 driver as a module, which will be called wdt285.
185 This driver does not work on all machines. In particular, early CATS
186 boards have hardware problems that will cause the machine to simply
187 lock up if the watchdog fires.
189 "If in doubt, leave it out" - say N.
192 tristate "NetWinder WB83C977 watchdog"
193 depends on FOOTBRIDGE && ARCH_NETWINDER
195 Say Y here to include support for the WB977 watchdog included in
196 NetWinder machines. Alternatively say M to compile the driver as
197 a module, which will be called wdt977.
199 Not sure? It's safe to say N.
201 config IXP4XX_WATCHDOG
202 tristate "IXP4xx Watchdog"
203 depends on ARCH_IXP4XX
205 Say Y here if to include support for the watchdog timer
206 in the Intel IXP4xx network processors. This driver can
207 be built as a module by choosing M. The module will
208 be called ixp4xx_wdt.
210 Note: The internal IXP4xx watchdog does a soft CPU reset
211 which doesn't reset any peripherals. There are circumstances
212 where the watchdog will fail to reset the board correctly
213 (e.g., if the boot ROM is in an unreadable state).
215 Say N if you are unsure.
217 config KS8695_WATCHDOG
218 tristate "KS8695 watchdog"
219 depends on ARCH_KS8695
221 Watchdog timer embedded into KS8695 processor. This will reboot your
222 system when the timeout is reached.
224 config HAVE_S3C2410_WATCHDOG
227 This will include watchdog timer support for Samsung SoCs. If
228 you want to include watchdog support for any machine, kindly
229 select this in the respective mach-XXXX/Kconfig file.
231 config S3C2410_WATCHDOG
232 tristate "S3C2410 Watchdog"
233 depends on HAVE_S3C2410_WATCHDOG
235 select MFD_SYSCON if ARCH_EXYNOS5
237 Watchdog timer block in the Samsung SoCs. This will reboot
238 the system when the timer expires with the watchdog enabled.
240 The driver is limited by the speed of the system's PCLK
241 signal, so with reasonably fast systems (PCLK around 50-66MHz)
242 then watchdog intervals of over approximately 20seconds are
245 The driver can be built as a module by choosing M, and will
246 be called s3c2410_wdt
248 config SA1100_WATCHDOG
249 tristate "SA1100/PXA2xx watchdog"
250 depends on ARCH_SA1100 || ARCH_PXA
252 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
253 reboot your system when timeout is reached.
255 NOTE: once enabled, this timer cannot be disabled.
257 To compile this driver as a module, choose M here: the
258 module will be called sa1100_wdt.
261 tristate "Synopsys DesignWare watchdog"
264 Say Y here if to include support for the Synopsys DesignWare
265 watchdog timer found in many chips.
266 To compile this driver as a module, choose M here: the
267 module will be called dw_wdt.
269 config EP93XX_WATCHDOG
270 tristate "EP93xx Watchdog"
271 depends on ARCH_EP93XX
274 Say Y here if to include support for the watchdog timer
275 embedded in the Cirrus Logic EP93xx family of devices.
277 To compile this driver as a module, choose M here: the
278 module will be called ep93xx_wdt.
281 tristate "OMAP Watchdog"
282 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
285 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
286 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
288 config PNX4008_WATCHDOG
289 tristate "LPC32XX Watchdog"
290 depends on ARCH_LPC32XX
293 Say Y here if to include support for the watchdog timer
294 in the LPC32XX processor.
295 This driver can be built as a module by choosing M. The module
296 will be called pnx4008_wdt.
298 Say N if you are unsure.
301 tristate "IOP Watchdog"
302 depends on ARCH_IOP13XX
303 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
305 Say Y here if to include support for the watchdog timer
306 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
307 be built as a module by choosing M. The module will
310 Note: The IOP13XX watchdog does an Internal Bus Reset which will
311 affect both cores and the peripherals of the IOP. The ATU-X
312 and/or ATUe configuration registers will remain intact, but if
313 operating as an Root Complex and/or Central Resource, the PCI-X
314 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
316 config DAVINCI_WATCHDOG
317 tristate "DaVinci watchdog"
318 depends on ARCH_DAVINCI || ARCH_KEYSTONE
321 Say Y here if to include support for the watchdog timer
322 in the DaVinci DM644x/DM646x or Keystone processors.
323 To compile this driver as a module, choose M here: the
324 module will be called davinci_wdt.
326 NOTE: once enabled, this timer cannot be disabled.
327 Say N if you are unsure.
329 config ORION_WATCHDOG
330 tristate "Orion watchdog"
331 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU
334 Say Y here if to include support for the watchdog timer
335 in the Marvell Orion5x and Kirkwood ARM SoCs.
336 To compile this driver as a module, choose M here: the
337 module will be called orion_wdt.
339 config RN5T618_WATCHDOG
340 tristate "Ricoh RN5T618 watchdog"
341 depends on MFD_RN5T618
344 If you say yes here you get support for watchdog on the Ricoh
347 This driver can also be built as a module. If so, the module
348 will be called rn5t618_wdt.
350 config SUNXI_WATCHDOG
351 tristate "Allwinner SoCs watchdog support"
352 depends on ARCH_SUNXI
355 Say Y here to include support for the watchdog timer
357 To compile this driver as a module, choose M here: the
358 module will be called sunxi_wdt.
360 config COH901327_WATCHDOG
361 bool "ST-Ericsson COH 901 327 watchdog"
363 default y if MACH_U300
366 Say Y here to include Watchdog timer support for the
367 watchdog embedded into the ST-Ericsson U300 series platforms.
368 This watchdog is used to reset the system and thus cannot be
369 compiled as a module.
371 config TWL4030_WATCHDOG
372 tristate "TWL4030 Watchdog"
373 depends on TWL4030_CORE
376 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
377 watchdog timer support for TWL4030 chips.
379 config STMP3XXX_RTC_WATCHDOG
380 tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
381 depends on RTC_DRV_STMP
384 Say Y here to include support for the watchdog timer inside
385 the RTC for the STMP37XX/378X or i.MX23/28 SoC.
386 To compile this driver as a module, choose M here: the
387 module will be called stmp3xxx_rtc_wdt.
389 config NUC900_WATCHDOG
390 tristate "Nuvoton NUC900 watchdog"
391 depends on ARCH_W90X900
393 Say Y here if to include support for the watchdog timer
394 for the Nuvoton NUC900 series SoCs.
395 To compile this driver as a module, choose M here: the
396 module will be called nuc900_wdt.
398 config TS72XX_WATCHDOG
399 tristate "TS-72XX SBC Watchdog"
400 depends on MACH_TS72XX
402 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
403 watchdog timer implemented in a external CPLD chip. Say Y here
404 if you want to support for the watchdog timer on TS-72XX boards.
406 To compile this driver as a module, choose M here: the
407 module will be called ts72xx_wdt.
409 config MAX63XX_WATCHDOG
410 tristate "Max63xx watchdog"
411 depends on ARM && HAS_IOMEM
414 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
417 tristate "IMX2+ Watchdog"
422 This is the driver for the hardware watchdog
423 on the Freescale IMX2 and later processors.
424 If you have one of these processors and wish to have
425 watchdog support enabled, say Y, otherwise say N.
427 To compile this driver as a module, choose M here: the
428 module will be called imx2_wdt.
430 config UX500_WATCHDOG
431 tristate "ST-Ericsson Ux500 watchdog"
432 depends on MFD_DB8500_PRCMU
436 Say Y here to include Watchdog timer support for the watchdog
437 existing in the prcmu of ST-Ericsson Ux500 series platforms.
439 To compile this driver as a module, choose M here: the
440 module will be called ux500_wdt.
443 tristate "Retu watchdog"
447 Retu watchdog driver for Nokia Internet Tablets (770, N800,
448 N810). At least on N800 the watchdog cannot be disabled, so
449 this driver is essential and you should enable it.
451 To compile this driver as a module, choose M here: the
452 module will be called retu_wdt.
455 tristate "MOXART watchdog"
456 depends on ARCH_MOXART
458 Say Y here to include Watchdog timer support for the watchdog
459 existing on the MOXA ART SoC series platforms.
461 To compile this driver as a module, choose M here: the
462 module will be called moxart_wdt.
464 config SIRFSOC_WATCHDOG
465 tristate "SiRFSOC watchdog"
470 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
471 the watchdog triggers the system will be reset.
473 config TEGRA_WATCHDOG
474 tristate "Tegra watchdog"
475 depends on ARCH_TEGRA || COMPILE_TEST
478 Say Y here to include support for the watchdog timer
479 embedded in NVIDIA Tegra SoCs.
481 To compile this driver as a module, choose M here: the
482 module will be called tegra_wdt.
485 tristate "QCOM watchdog"
490 Say Y here to include Watchdog timer support for the watchdog found
491 on QCOM chipsets. Currently supported targets are the MSM8960,
492 APQ8064, and IPQ8064.
494 To compile this driver as a module, choose M here: the
495 module will be called qcom_wdt.
497 config MESON_WATCHDOG
498 tristate "Amlogic Meson SoCs watchdog support"
499 depends on ARCH_MESON
502 Say Y here to include support for the watchdog timer
503 in Amlogic Meson SoCs.
504 To compile this driver as a module, choose M here: the
505 module will be called meson_wdt.
509 config AT32AP700X_WDT
510 tristate "AT32AP700x watchdog"
511 depends on CPU_AT32AP700X
513 Watchdog timer embedded into AT32AP700x devices. This will reboot
514 your system when the timeout is reached.
516 # BLACKFIN Architecture
519 tristate "Blackfin On-Chip Watchdog Timer"
522 If you say yes here you will get support for the Blackfin On-Chip
523 Watchdog Timer. If you have one of these processors and wish to
524 have watchdog support enabled, say Y, otherwise say N.
526 To compile this driver as a module, choose M here: the
527 module will be called bfin_wdt.
533 # X86 (i386 + ia64 + x86_64) Architecture
536 tristate "Acquire SBC Watchdog Timer"
539 This is the driver for the hardware watchdog on Single Board
540 Computers produced by Acquire Inc (and others). This watchdog
541 simply watches your kernel to make sure it doesn't freeze, and if
542 it does, it reboots your computer after a certain amount of time.
544 To compile this driver as a module, choose M here: the
545 module will be called acquirewdt.
547 Most people will say N.
550 tristate "Advantech SBC Watchdog Timer"
553 If you are configuring a Linux kernel for the Advantech single-board
554 computer, say `Y' here to support its built-in watchdog timer
555 feature. More information can be found at
556 <http://www.advantech.com.tw/products/>
559 tristate "ALi M1535 PMU Watchdog Timer"
560 depends on X86 && PCI
562 This is the driver for the hardware watchdog on the ALi M1535 PMU.
564 To compile this driver as a module, choose M here: the
565 module will be called alim1535_wdt.
567 Most people will say N.
570 tristate "ALi M7101 PMU Computer Watchdog"
573 This is the driver for the hardware watchdog on the ALi M7101 PMU
574 as used in the x86 Cobalt servers and also found in some
575 SPARC Netra servers too.
577 To compile this driver as a module, choose M here: the
578 module will be called alim7101_wdt.
580 Most people will say N.
583 tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
586 This is the driver for the hardware watchdog on the Fintek
587 F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
589 You can compile this driver directly into the kernel, or use
590 it as a module. The module will be called f71808e_wdt.
593 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
594 depends on X86 && PCI
596 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
597 (Total Cost of Ownership) timer is a watchdog timer that will reboot
598 the machine after its expiration. The expiration time can be
599 configured with the "heartbeat" parameter.
601 To compile this driver as a module, choose M here: the
602 module will be called sp5100_tco.
605 tristate "AMD Geode CS5535/CS5536 Watchdog"
606 depends on CS5535_MFGPT
608 This driver enables a watchdog capability built into the
609 CS5535/CS5536 companion chips for the AMD Geode GX and LX
610 processors. This watchdog watches your kernel to make sure
611 it doesn't freeze, and if it does, it reboots your computer after
612 a certain amount of time.
614 You can compile this driver directly into the kernel, or use
615 it as a module. The module will be called geodewdt.
618 tristate "AMD Elan SC520 processor Watchdog"
621 This is the driver for the hardware watchdog built in to the
622 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
623 This watchdog simply watches your kernel to make sure it doesn't
624 freeze, and if it does, it reboots your computer after a certain
627 You can compile this driver directly into the kernel, or use
628 it as a module. The module will be called sc520_wdt.
630 config SBC_FITPC2_WATCHDOG
631 tristate "Compulab SBC-FITPC2 watchdog"
634 This is the driver for the built-in watchdog timer on the fit-PC2,
635 fit-PC2i, CM-iAM single-board computers made by Compulab.
637 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
638 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
640 Entering BIOS setup temporary disables watchdog operation regardless to current state,
641 so system will not be restarted while user in BIOS setup.
643 Once watchdog was enabled the system will be restarted every
644 "Watchdog Timer Value" period, so to prevent it user can restart or
645 disable the watchdog.
647 To compile this driver as a module, choose M here: the
648 module will be called sbc_fitpc2_wdt.
650 Most people will say N.
653 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
656 Enable support for the watchdog timer on the Eurotech CPU-1220 and
657 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
658 information are at <http://www.eurotech.it/>.
661 tristate "IB700 SBC Watchdog Timer"
664 This is the driver for the hardware watchdog on the IB700 Single
665 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
666 simply watches your kernel to make sure it doesn't freeze, and if
667 it does, it reboots your computer after a certain amount of time.
669 This driver is like the WDT501 driver but for slightly different hardware.
671 To compile this driver as a module, choose M here: the
672 module will be called ib700wdt.
674 Most people will say N.
677 tristate "IBM Automatic Server Restart"
680 This is the driver for the IBM Automatic Server Restart watchdog
681 timer built-in into some eServer xSeries machines.
683 To compile this driver as a module, choose M here: the
684 module will be called ibmasr.
687 tristate "ICP Single Board Computer Watchdog Timer"
690 This is a driver for the hardware watchdog on the ICP Single
691 Board Computer. This driver is working on (at least) the following
692 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
694 To compile this driver as a module, choose M here: the
695 module will be called wafer5823wdt.
698 tristate "Intel 6300ESB Timer/Watchdog"
701 Hardware driver for the watchdog timer built into the Intel
702 6300ESB controller hub.
704 To compile this driver as a module, choose M here: the
705 module will be called i6300esb.
708 tristate "Intel Atom E6xx Watchdog"
709 depends on X86 && PCI
714 Hardware driver for the watchdog timer built into the Intel
715 Atom E6XX (TunnelCreek) processor.
717 To compile this driver as a module, choose M here: the
718 module will be called ie6xx_wdt.
720 config INTEL_SCU_WATCHDOG
721 bool "Intel SCU Watchdog for Mobile Platforms"
722 depends on X86_INTEL_MID
724 Hardware driver for the watchdog time built into the Intel SCU
725 for Intel Mobile Platforms.
727 To compile this driver as a module, choose M here.
729 config INTEL_MID_WATCHDOG
730 tristate "Intel MID Watchdog Timer"
731 depends on X86_INTEL_MID
734 Watchdog timer driver built into the Intel SCU for Intel MID
737 This driver currently supports only the watchdog evolution
738 implementation in SCU, available for Merrifield generation.
740 To compile this driver as a module, choose M here.
743 tristate "Intel TCO Timer/Watchdog"
744 depends on (X86 || IA64) && PCI
748 Hardware driver for the intel TCO timer based watchdog devices.
749 These drivers are included in the Intel 82801 I/O Controller
750 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
753 The TCO (Total Cost of Ownership) timer is a watchdog timer
754 that will reboot the machine after its second expiration. The
755 expiration time can be configured with the "heartbeat" parameter.
757 On some motherboards the driver may fail to reset the chipset's
758 NO_REBOOT flag which prevents the watchdog from rebooting the
759 machine. If this is the case you will get a kernel message like
760 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
762 To compile this driver as a module, choose M here: the
763 module will be called iTCO_wdt.
765 config ITCO_VENDOR_SUPPORT
766 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
769 Add vendor specific support to the intel TCO timer based watchdog
770 devices. At this moment we only have additional support for some
771 SuperMicro Inc. motherboards.
774 tristate "IT8712F (Smart Guardian) Watchdog Timer"
777 This is the driver for the built-in watchdog timer on the IT8712F
778 Super I/0 chipset used on many motherboards.
780 If the driver does not work, then make sure that the game port in
783 To compile this driver as a module, choose M here: the
784 module will be called it8712f_wdt.
787 tristate "IT87 Watchdog Timer"
790 This is the driver for the hardware watchdog on the ITE IT8702,
791 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728
794 If the driver does not work, then make sure that the game port in
797 This watchdog simply watches your kernel to make sure it doesn't
798 freeze, and if it does, it reboots your computer after a certain
801 To compile this driver as a module, choose M here: the module will
805 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
806 depends on X86 && PCI
808 A software monitoring watchdog and NMI sourcing driver. This driver
809 will detect lockups and provide a stack trace. This is a driver that
810 will only load on an HP ProLiant system with a minimum of iLO2 support.
811 To compile this driver as a module, choose M here: the module will be
815 tristate "Kontron COM Watchdog Timer"
816 depends on MFD_KEMPLD
819 Support for the PLD watchdog on some Kontron ETX and COMexpress
822 This driver can also be built as a module. If so, the module will be
825 config HPWDT_NMI_DECODING
826 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
827 depends on HP_WATCHDOG
830 When an NMI occurs this feature will make the necessary BIOS calls to
831 log the cause of the NMI.
834 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
837 This is a driver for National Semiconductor PC87307/PC97307 hardware
838 watchdog cards as found on the SC1200. This watchdog is mainly used
839 for power management purposes and can be used to power down the device
840 during inactivity periods (includes interrupt activity monitoring).
842 To compile this driver as a module, choose M here: the
843 module will be called sc1200wdt.
845 Most people will say N.
848 tristate "National Semiconductor SCx200 Watchdog"
849 depends on SCx200 && PCI
851 Enable the built-in watchdog timer support on the National
852 Semiconductor SCx200 processors.
854 If compiled as a module, it will be called scx200_wdt.
857 tristate "NS PC87413 watchdog"
860 This is the driver for the hardware watchdog on the PC87413 chipset
861 This watchdog simply watches your kernel to make sure it doesn't
862 freeze, and if it does, it reboots your computer after a certain
865 To compile this driver as a module, choose M here: the
866 module will be called pc87413_wdt.
868 Most people will say N.
871 tristate "nVidia TCO Timer/Watchdog"
872 depends on X86 && PCI
874 Hardware driver for the TCO timer built into the nVidia Hub family
875 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
876 watchdog timer that will reboot the machine after its second
877 expiration. The expiration time can be configured with the
878 "heartbeat" parameter.
880 On some motherboards the driver may fail to reset the chipset's
881 NO_REBOOT flag which prevents the watchdog from rebooting the
882 machine. If this is the case you will get a kernel message like
883 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
885 To compile this driver as a module, choose M here: the
886 module will be called nv_tco.
889 tristate "RDC R-321x SoC watchdog"
890 depends on X86_RDC321X
892 This is the driver for the built in hardware watchdog
893 in the RDC R-321x SoC.
895 To compile this driver as a module, choose M here: the
896 module will be called rdc321x_wdt.
899 tristate "SBC-60XX Watchdog Timer"
902 This driver can be used with the watchdog timer found on some
903 single board computers, namely the 6010 PII based computer.
904 It may well work with other cards. It reads port 0x443 to enable
905 and re-set the watchdog timer, and reads port 0x45 to disable
906 the watchdog. If you have a card that behave in similar ways,
907 you can probably make this driver work with your card as well.
909 You can compile this driver directly into the kernel, or use
910 it as a module. The module will be called sbc60xxwdt.
913 tristate "SBC8360 Watchdog Timer"
917 This is the driver for the hardware watchdog on the SBC8360 Single
918 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
920 To compile this driver as a module, choose M here: the
921 module will be called sbc8360.
923 Most people will say N.
926 tristate "SBC Nano 7240 Watchdog Timer"
927 depends on X86_32 && !UML
929 This is the driver for the hardware watchdog found on the IEI
930 single board computers EPIC Nano 7240 (and likely others). This
931 watchdog simply watches your kernel to make sure it doesn't freeze,
932 and if it does, it reboots your computer after a certain amount of
935 To compile this driver as a module, choose M here: the
936 module will be called sbc7240_wdt.
939 tristate "SMA CPU5 Watchdog"
943 To compile this driver as a module, choose M here: the
944 module will be called cpu5wdt.
946 config SMSC_SCH311X_WDT
947 tristate "SMSC SCH311X Watchdog Timer"
950 This is the driver for the hardware watchdog timer on the
951 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
952 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
955 To compile this driver as a module, choose M here: the
956 module will be called sch311x_wdt.
958 config SMSC37B787_WDT
959 tristate "Winbond SMsC37B787 Watchdog Timer"
962 This is the driver for the hardware watchdog component on the
963 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
964 from Vision Systems and maybe others.
966 This watchdog simply watches your kernel to make sure it doesn't
967 freeze, and if it does, it reboots your computer after a certain
970 Usually a userspace daemon will notify the kernel WDT driver that
971 userspace is still alive, at regular intervals.
973 To compile this driver as a module, choose M here: the
974 module will be called smsc37b787_wdt.
976 Most people will say N.
979 tristate "VIA Watchdog Timer"
980 depends on X86 && PCI
983 This is the driver for the hardware watchdog timer on VIA
984 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
986 To compile this driver as a module, choose M here; the module
987 will be called via_wdt.
989 Most people will say N.
992 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
996 This is the driver for the hardware watchdog on the following
998 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1008 This watchdog simply watches your kernel to make sure it doesn't
1009 freeze, and if it does, it reboots your computer after a certain
1012 To compile this driver as a module, choose M here: the
1013 module will be called w83627hf_wdt.
1015 Most people will say N.
1018 tristate "W83877F (EMACS) Watchdog Timer"
1021 This is the driver for the hardware watchdog on the W83877F chipset
1022 as used in EMACS PC-104 motherboards (and likely others). This
1023 watchdog simply watches your kernel to make sure it doesn't freeze,
1024 and if it does, it reboots your computer after a certain amount of
1027 To compile this driver as a module, choose M here: the
1028 module will be called w83877f_wdt.
1030 Most people will say N.
1033 tristate "W83977F (PCM-5335) Watchdog Timer"
1036 This is the driver for the hardware watchdog on the W83977F I/O chip
1037 as used in AAEON's PCM-5335 SBC (and likely others). This
1038 watchdog simply watches your kernel to make sure it doesn't freeze,
1039 and if it does, it reboots your computer after a certain amount of
1042 To compile this driver as a module, choose M here: the
1043 module will be called w83977f_wdt.
1046 tristate "ZF MachZ Watchdog"
1049 If you are using a ZF Micro MachZ processor, say Y here, otherwise
1050 N. This is the driver for the watchdog timer built-in on that
1051 processor using ZF-Logic interface. This watchdog simply watches
1052 your kernel to make sure it doesn't freeze, and if it does, it
1053 reboots your computer after a certain amount of time.
1055 To compile this driver as a module, choose M here: the
1056 module will be called machzwd.
1058 config SBC_EPX_C3_WATCHDOG
1059 tristate "Winsystems SBC EPX-C3 watchdog"
1062 This is the driver for the built-in watchdog timer on the EPX-C3
1063 Single-board computer made by Winsystems, Inc.
1065 *Note*: This hardware watchdog is not probeable and thus there
1066 is no way to know if writing to its IO address will corrupt
1067 your system or have any real effect. The only way to be sure
1068 that this driver does what you want is to make sure you
1069 are running it on an EPX-C3 from Winsystems with the watchdog
1070 timer at IO address 0x1ee and 0x1ef. It will write to both those
1071 IO ports. Basically, the assumption is made that if you compile
1072 this driver into your kernel and/or load it as a module, that you
1073 know what you are doing and that you are in fact running on an
1076 To compile this driver as a module, choose M here: the
1077 module will be called sbc_epx_c3.
1083 config M54xx_WATCHDOG
1084 tristate "MCF54xx watchdog support"
1087 To compile this driver as a module, choose M here: the
1088 module will be called m54xx_wdt.
1090 # MicroBlaze Architecture
1095 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1098 Hardware driver for the built-in watchdog timer on the Atheros
1099 AR71XX/AR724X/AR913X SoCs.
1102 tristate "Broadcom BCM47xx Watchdog Timer"
1104 select WATCHDOG_CORE
1106 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1109 tristate "IDT RC32434 SoC Watchdog Timer"
1110 depends on MIKROTIK_RB532
1112 Hardware driver for the IDT RC32434 SoC built-in
1115 To compile this driver as a module, choose M here: the
1116 module will be called rc32434_wdt.
1119 tristate "Indy/I2 Hardware Watchdog"
1120 depends on SGI_HAS_INDYDOG
1122 Hardware driver for the Indy's/I2's watchdog. This is a
1123 watchdog timer that will reboot the machine after a 60 second
1124 timer expired and no process has written to /dev/watchdog during
1128 tristate "Ingenic jz4740 SoC hardware watchdog"
1129 depends on MACH_JZ4740
1130 select WATCHDOG_CORE
1132 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1135 tristate "MTX-1 Hardware Watchdog"
1136 depends on MIPS_MTX1
1138 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1139 will reboot the machine after a 100 seconds timer expired.
1142 tristate "PNX833x Hardware Watchdog"
1143 depends on SOC_PNX8335
1145 Hardware driver for the PNX833x's watchdog. This is a
1146 watchdog timer that will reboot the machine after a programmable
1147 timer has expired and no process has written to /dev/watchdog during
1151 tristate "Sibyte SoC hardware watchdog"
1154 Watchdog driver for the built in watchdog hardware in Sibyte
1155 SoC processors. There are apparently two watchdog timers
1156 on such processors; this driver supports only the first one,
1157 because currently Linux only supports exporting one watchdog
1160 To compile this driver as a loadable module, choose M here.
1161 The module will be called sb_wdog.
1164 tristate "TI AR7 Watchdog Timer"
1167 Hardware driver for the TI AR7 Watchdog Timer.
1170 tristate "Toshiba TXx9 Watchdog Timer"
1171 depends on CPU_TX39XX || CPU_TX49XX
1172 select WATCHDOG_CORE
1174 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1177 tristate "Cavium OCTEON SOC family Watchdog Timer"
1178 depends on CAVIUM_OCTEON_SOC
1180 select EXPORT_UASM if OCTEON_WDT = m
1182 Hardware driver for OCTEON's on chip watchdog timer.
1183 Enables the watchdog for all cores running Linux. It
1184 installs a NMI handler and pokes the watchdog based on an
1185 interrupt. On first expiration of the watchdog, the
1186 interrupt handler pokes it. The second expiration causes an
1187 NMI that prints a message. The third expiration causes a
1190 When userspace has /dev/watchdog open, no poking is done
1191 from the first interrupt, it is then only poked when the
1195 tristate "Broadcom BCM63xx hardware watchdog"
1198 Watchdog driver for the built in watchdog hardware in Broadcom
1201 To compile this driver as a loadable module, choose M here.
1202 The module will be called bcm63xx_wdt.
1205 tristate "Broadcom BCM2835 hardware watchdog"
1206 depends on ARCH_BCM2835
1207 select WATCHDOG_CORE
1209 Watchdog driver for the built in watchdog hardware in Broadcom
1212 To compile this driver as a loadable module, choose M here.
1213 The module will be called bcm2835_wdt.
1216 tristate "BCM Kona Watchdog"
1217 depends on ARCH_BCM_MOBILE
1218 select WATCHDOG_CORE
1220 Support for the watchdog timer on the following Broadcom BCM281xx
1221 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1224 Say 'Y' or 'M' here to enable the driver. The module will be called
1227 config BCM_KONA_WDT_DEBUG
1228 bool "DEBUGFS support for BCM Kona Watchdog"
1229 depends on BCM_KONA_WDT
1231 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1232 access to the driver's internal data structures as well as watchdog
1233 timer hardware registres.
1235 If in doubt, say 'N'.
1238 tristate "Lantiq SoC watchdog"
1241 Hardware driver for the Lantiq SoC Watchdog Timer.
1244 tristate "Ralink SoC watchdog"
1245 select WATCHDOG_CORE
1248 Hardware driver for the Ralink SoC Watchdog Timer.
1250 # PARISC Architecture
1252 # POWERPC Architecture
1255 tristate "GE Watchdog Timer"
1258 Watchdog timer found in a number of GE single board computers.
1261 bool "MPC52xx Watchdog Timer"
1262 depends on PPC_MPC52xx
1264 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1267 tristate "MPC8xxx Platform Watchdog Timer"
1268 depends on PPC_8xx || PPC_83xx || PPC_86xx
1269 select WATCHDOG_CORE
1271 This driver is for a SoC level watchdog that exists on some
1272 Freescale PowerPC processors. So far this driver supports:
1277 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1280 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1284 tristate "PIKA FPGA Watchdog"
1288 This enables the watchdog in the PIKA FPGA. Currently used on
1292 tristate "PowerPC Book-E Watchdog Timer"
1293 depends on BOOKE || 4xx
1294 select WATCHDOG_CORE
1296 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1297 MPC85xx SOCs and the IBM PowerPC 440.
1299 Please see Documentation/watchdog/watchdog-api.txt for
1302 config BOOKE_WDT_DEFAULT_TIMEOUT
1303 int "PowerPC Book-E Watchdog Timer Default Timeout"
1304 depends on BOOKE_WDT
1305 default 38 if PPC_FSL_BOOK3E
1306 range 0 63 if PPC_FSL_BOOK3E
1307 default 3 if !PPC_FSL_BOOK3E
1308 range 0 3 if !PPC_FSL_BOOK3E
1310 Select the default watchdog timer period to be used by the PowerPC
1311 Book-E watchdog driver. A watchdog "event" occurs when the bit
1312 position represented by this number transitions from zero to one.
1314 For Freescale Book-E processors, this is a number between 0 and 63.
1315 For other Book-E processors, this is a number between 0 and 3.
1317 The value can be overridden by the wdt_period command-line parameter.
1320 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1321 select WATCHDOG_CORE
1324 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1326 The driver can also be built as a module. If so, the module will be
1329 If unsure select N here.
1331 # PPC64 Architecture
1333 config WATCHDOG_RTAS
1334 tristate "RTAS watchdog"
1337 This driver adds watchdog support for the RTAS watchdog.
1339 To compile this driver as a module, choose M here. The module
1340 will be called wdrtas.
1344 config DIAG288_WATCHDOG
1345 tristate "System z diag288 Watchdog"
1347 select WATCHDOG_CORE
1349 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1350 provide a virtual watchdog timer to their guest that cause a
1351 user define Control Program command to be executed after a
1353 LPAR provides a very similar interface. This driver handles
1356 To compile this driver as a module, choose M here. The module
1357 will be called diag288_wdt.
1359 # SUPERH (sh + sh64) Architecture
1362 tristate "SuperH Watchdog"
1363 depends on SUPERH && (CPU_SH3 || CPU_SH4)
1364 select WATCHDOG_CORE
1366 This driver adds watchdog support for the integrated watchdog in the
1367 SuperH processors. If you have one of these processors and wish
1368 to have watchdog support enabled, say Y, otherwise say N.
1370 As a side note, saying Y here will automatically boost HZ to 1000
1371 so that the timer has a chance to clear the overflow counter. On
1372 slower systems (such as the SH-2 and SH-3) this will likely yield
1373 some performance issues. As such, the WDT should be avoided here
1374 unless it is absolutely necessary.
1376 To compile this driver as a module, choose M here: the
1377 module will be called shwdt.
1379 # SPARC Architecture
1381 # SPARC64 Architecture
1383 config WATCHDOG_CP1XXX
1384 tristate "CP1XXX Hardware Watchdog support"
1385 depends on SPARC64 && PCI
1387 This is the driver for the hardware watchdog timers present on
1388 Sun Microsystems CompactPCI models CP1400 and CP1500.
1390 To compile this driver as a module, choose M here: the
1391 module will be called cpwatchdog.
1393 If you do not have a CompactPCI model CP1400 or CP1500, or
1394 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1395 you should say N to this option.
1398 tristate "RIO Hardware Watchdog support"
1399 depends on SPARC64 && PCI
1401 Say Y here to support the hardware watchdog capability on Sun RIO
1402 machines. The watchdog timeout period is normally one minute but
1403 can be changed with a boot-time parameter.
1405 # XTENSA Architecture
1410 tristate "Xen Watchdog support"
1413 Say Y here to support the hypervisor watchdog capability provided
1414 by Xen 4.0 and newer. The watchdog timeout period is normally one
1415 minute but can be changed with a boot-time parameter.
1418 tristate "UML watchdog"
1422 # ISA-based Watchdog Cards
1425 comment "ISA-based Watchdog Cards"
1429 tristate "Berkshire Products ISA-PC Watchdog"
1432 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1433 This card simply watches your kernel to make sure it doesn't freeze,
1434 and if it does, it reboots your computer after a certain amount of
1435 time. This driver is like the WDT501 driver but for different
1436 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1437 watchdog cards can be ordered from <http://www.berkprod.com/>.
1439 To compile this driver as a module, choose M here: the
1440 module will be called pcwd.
1442 Most people will say N.
1445 tristate "Mixcom Watchdog"
1448 This is a driver for the Mixcom hardware watchdog cards. This
1449 watchdog simply watches your kernel to make sure it doesn't freeze,
1450 and if it does, it reboots your computer after a certain amount of
1453 To compile this driver as a module, choose M here: the
1454 module will be called mixcomwd.
1456 Most people will say N.
1459 tristate "WDT Watchdog timer"
1462 If you have a WDT500P or WDT501P watchdog board, say Y here,
1463 otherwise N. It is not possible to probe for this board, which means
1464 that you have to inform the kernel about the IO port and IRQ that
1465 is needed (you can do this via the io and irq parameters)
1467 To compile this driver as a module, choose M here: the
1468 module will be called wdt.
1471 # PCI-based Watchdog Cards
1474 comment "PCI-based Watchdog Cards"
1477 config PCIPCWATCHDOG
1478 tristate "Berkshire Products PCI-PC Watchdog"
1481 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1482 This card simply watches your kernel to make sure it doesn't freeze,
1483 and if it does, it reboots your computer after a certain amount of
1484 time. The card can also monitor the internal temperature of the PC.
1485 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1487 To compile this driver as a module, choose M here: the
1488 module will be called pcwd_pci.
1490 Most people will say N.
1493 tristate "PCI-WDT500/501 Watchdog timer"
1496 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1498 If you have a PCI-WDT501 watchdog board then you can enable the
1499 temperature sensor by setting the type parameter to 501.
1501 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1502 can do this via the tachometer parameter. Only do this if you have a
1503 fan tachometer actually set up.
1505 To compile this driver as a module, choose M here: the
1506 module will be called wdt_pci.
1509 # USB-based Watchdog Cards
1512 comment "USB-based Watchdog Cards"
1515 config USBPCWATCHDOG
1516 tristate "Berkshire Products USB-PC Watchdog"
1519 This is the driver for the Berkshire Products USB-PC Watchdog card.
1520 This card simply watches your kernel to make sure it doesn't freeze,
1521 and if it does, it reboots your computer after a certain amount of
1522 time. The card can also monitor the internal temperature of the PC.
1523 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1525 To compile this driver as a module, choose M here: the
1526 module will be called pcwd_usb.
1528 Most people will say N.