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 WM831X_WATCHDOG
80 tristate "WM831x watchdog"
84 Support for the watchdog in the WM831x AudioPlus PMICs. When
85 the watchdog triggers the system will be reset.
87 config WM8350_WATCHDOG
88 tristate "WM8350 watchdog"
92 Support for the watchdog in the WM8350 AudioPlus PMIC. When
93 the watchdog triggers the system will be reset.
99 config ARM_SP805_WATCHDOG
100 tristate "ARM SP805 Watchdog"
103 ARM Primecell SP805 Watchdog timer. This will reboot your system when
104 the timeout is reached.
106 config AT91RM9200_WATCHDOG
107 tristate "AT91RM9200 watchdog"
108 depends on ARCH_AT91RM9200
110 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
111 system when the timeout is reached.
113 config AT91SAM9X_WATCHDOG
114 tristate "AT91SAM9X / AT91CAP9 watchdog"
115 depends on ARCH_AT91 && !ARCH_AT91RM9200
117 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
118 reboot your system when the timeout is reached.
120 config 21285_WATCHDOG
121 tristate "DC21285 watchdog"
122 depends on FOOTBRIDGE
124 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
125 here if you wish to use this. Alternatively say M to compile the
126 driver as a module, which will be called wdt285.
128 This driver does not work on all machines. In particular, early CATS
129 boards have hardware problems that will cause the machine to simply
130 lock up if the watchdog fires.
132 "If in doubt, leave it out" - say N.
135 tristate "NetWinder WB83C977 watchdog"
136 depends on FOOTBRIDGE && ARCH_NETWINDER
138 Say Y here to include support for the WB977 watchdog included in
139 NetWinder machines. Alternatively say M to compile the driver as
140 a module, which will be called wdt977.
142 Not sure? It's safe to say N.
144 config IXP4XX_WATCHDOG
145 tristate "IXP4xx Watchdog"
146 depends on ARCH_IXP4XX
148 Say Y here if to include support for the watchdog timer
149 in the Intel IXP4xx network processors. This driver can
150 be built as a module by choosing M. The module will
151 be called ixp4xx_wdt.
153 Note: The internal IXP4xx watchdog does a soft CPU reset
154 which doesn't reset any peripherals. There are circumstances
155 where the watchdog will fail to reset the board correctly
156 (e.g., if the boot ROM is in an unreadable state).
158 Say N if you are unsure.
160 config KS8695_WATCHDOG
161 tristate "KS8695 watchdog"
162 depends on ARCH_KS8695
164 Watchdog timer embedded into KS8695 processor. This will reboot your
165 system when the timeout is reached.
167 config HAVE_S3C2410_WATCHDOG
170 This will include watchdog timer support for Samsung SoCs. If
171 you want to include watchdog support for any machine, kindly
172 select this in the respective mach-XXXX/Kconfig file.
174 config S3C2410_WATCHDOG
175 tristate "S3C2410 Watchdog"
176 depends on HAVE_S3C2410_WATCHDOG
179 Watchdog timer block in the Samsung SoCs. This will reboot
180 the system when the timer expires with the watchdog enabled.
182 The driver is limited by the speed of the system's PCLK
183 signal, so with reasonably fast systems (PCLK around 50-66MHz)
184 then watchdog intervals of over approximately 20seconds are
187 The driver can be built as a module by choosing M, and will
188 be called s3c2410_wdt
190 config SA1100_WATCHDOG
191 tristate "SA1100/PXA2xx watchdog"
192 depends on ARCH_SA1100 || ARCH_PXA
194 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
195 reboot your system when timeout is reached.
197 NOTE: once enabled, this timer cannot be disabled.
199 To compile this driver as a module, choose M here: the
200 module will be called sa1100_wdt.
203 tristate "Synopsys DesignWare watchdog"
204 depends on ARM && HAVE_CLK
206 Say Y here if to include support for the Synopsys DesignWare
207 watchdog timer found in many ARM chips.
208 To compile this driver as a module, choose M here: the
209 module will be called dw_wdt.
211 config MPCORE_WATCHDOG
212 tristate "MPcore watchdog"
213 depends on HAVE_ARM_TWD
215 Watchdog timer embedded into the MPcore system.
217 To compile this driver as a module, choose M here: the
218 module will be called mpcore_wdt.
220 config EP93XX_WATCHDOG
221 tristate "EP93xx Watchdog"
222 depends on ARCH_EP93XX
225 Say Y here if to include support for the watchdog timer
226 embedded in the Cirrus Logic EP93xx family of devices.
228 To compile this driver as a module, choose M here: the
229 module will be called ep93xx_wdt.
232 tristate "OMAP Watchdog"
233 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
235 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
236 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
238 config PNX4008_WATCHDOG
239 tristate "PNX4008 and LPC32XX Watchdog"
240 depends on ARCH_PNX4008 || ARCH_LPC32XX
243 Say Y here if to include support for the watchdog timer
244 in the PNX4008 or LPC32XX processor.
245 This driver can be built as a module by choosing M. The module
246 will be called pnx4008_wdt.
248 Say N if you are unsure.
251 tristate "IOP Watchdog"
253 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
255 Say Y here if to include support for the watchdog timer
256 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
257 be built as a module by choosing M. The module will
260 Note: The IOP13XX watchdog does an Internal Bus Reset which will
261 affect both cores and the peripherals of the IOP. The ATU-X
262 and/or ATUe configuration registers will remain intact, but if
263 operating as an Root Complex and/or Central Resource, the PCI-X
264 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
266 config DAVINCI_WATCHDOG
267 tristate "DaVinci watchdog"
268 depends on ARCH_DAVINCI
270 Say Y here if to include support for the watchdog timer
271 in the DaVinci DM644x/DM646x processors.
272 To compile this driver as a module, choose M here: the
273 module will be called davinci_wdt.
275 NOTE: once enabled, this timer cannot be disabled.
276 Say N if you are unsure.
278 config ORION_WATCHDOG
279 tristate "Orion watchdog"
280 depends on ARCH_ORION5X || ARCH_KIRKWOOD
282 Say Y here if to include support for the watchdog timer
283 in the Marvell Orion5x and Kirkwood ARM SoCs.
284 To compile this driver as a module, choose M here: the
285 module will be called orion_wdt.
287 config COH901327_WATCHDOG
288 bool "ST-Ericsson COH 901 327 watchdog"
290 default y if MACH_U300
293 Say Y here to include Watchdog timer support for the
294 watchdog embedded into the ST-Ericsson U300 series platforms.
295 This watchdog is used to reset the system and thus cannot be
296 compiled as a module.
298 config TWL4030_WATCHDOG
299 tristate "TWL4030 Watchdog"
300 depends on TWL4030_CORE
302 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
303 watchdog timer support for TWL4030 chips.
305 config STMP3XXX_WATCHDOG
306 tristate "Freescale STMP3XXX watchdog"
307 depends on ARCH_STMP3XXX
309 Say Y here if to include support for the watchdog timer
310 for the Sigmatel STMP37XX/378X SoC.
311 To compile this driver as a module, choose M here: the
312 module will be called stmp3xxx_wdt.
314 config NUC900_WATCHDOG
315 tristate "Nuvoton NUC900 watchdog"
316 depends on ARCH_W90X900
318 Say Y here if to include support for the watchdog timer
319 for the Nuvoton NUC900 series SoCs.
320 To compile this driver as a module, choose M here: the
321 module will be called nuc900_wdt.
323 config TS72XX_WATCHDOG
324 tristate "TS-72XX SBC Watchdog"
325 depends on MACH_TS72XX
327 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
328 watchdog timer implemented in a external CPLD chip. Say Y here
329 if you want to support for the watchdog timer on TS-72XX boards.
331 To compile this driver as a module, choose M here: the
332 module will be called ts72xx_wdt.
334 config MAX63XX_WATCHDOG
335 tristate "Max63xx watchdog"
336 depends on ARM && HAS_IOMEM
339 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
342 tristate "IMX2+ Watchdog"
343 depends on IMX_HAVE_PLATFORM_IMX2_WDT
345 This is the driver for the hardware watchdog
346 on the Freescale IMX2 and later processors.
347 If you have one of these processors and wish to have
348 watchdog support enabled, say Y, otherwise say N.
350 To compile this driver as a module, choose M here: the
351 module will be called imx2_wdt.
355 config AT32AP700X_WDT
356 tristate "AT32AP700x watchdog"
357 depends on CPU_AT32AP700X
359 Watchdog timer embedded into AT32AP700x devices. This will reboot
360 your system when the timeout is reached.
362 # BLACKFIN Architecture
365 tristate "Blackfin On-Chip Watchdog Timer"
368 If you say yes here you will get support for the Blackfin On-Chip
369 Watchdog Timer. If you have one of these processors and wish to
370 have watchdog support enabled, say Y, otherwise say N.
372 To compile this driver as a module, choose M here: the
373 module will be called bfin_wdt.
381 # X86 (i386 + ia64 + x86_64) Architecture
384 tristate "Acquire SBC Watchdog Timer"
387 This is the driver for the hardware watchdog on Single Board
388 Computers produced by Acquire Inc (and others). This watchdog
389 simply watches your kernel to make sure it doesn't freeze, and if
390 it does, it reboots your computer after a certain amount of time.
392 To compile this driver as a module, choose M here: the
393 module will be called acquirewdt.
395 Most people will say N.
398 tristate "Advantech SBC Watchdog Timer"
401 If you are configuring a Linux kernel for the Advantech single-board
402 computer, say `Y' here to support its built-in watchdog timer
403 feature. More information can be found at
404 <http://www.advantech.com.tw/products/>
407 tristate "ALi M1535 PMU Watchdog Timer"
408 depends on X86 && PCI
410 This is the driver for the hardware watchdog on the ALi M1535 PMU.
412 To compile this driver as a module, choose M here: the
413 module will be called alim1535_wdt.
415 Most people will say N.
418 tristate "ALi M7101 PMU Computer Watchdog"
421 This is the driver for the hardware watchdog on the ALi M7101 PMU
422 as used in the x86 Cobalt servers and also found in some
423 SPARC Netra servers too.
425 To compile this driver as a module, choose M here: the
426 module will be called alim7101_wdt.
428 Most people will say N.
431 tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
432 depends on X86 && EXPERIMENTAL
434 This is the driver for the hardware watchdog on the Fintek
435 F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
437 You can compile this driver directly into the kernel, or use
438 it as a module. The module will be called f71808e_wdt.
441 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
442 depends on X86 && PCI
444 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
445 (Total Cost of Ownership) timer is a watchdog timer that will reboot
446 the machine after its expiration. The expiration time can be
447 configured with the "heartbeat" parameter.
449 To compile this driver as a module, choose M here: the
450 module will be called sp5100_tco.
453 tristate "AMD Geode CS5535/CS5536 Watchdog"
454 depends on CS5535_MFGPT
456 This driver enables a watchdog capability built into the
457 CS5535/CS5536 companion chips for the AMD Geode GX and LX
458 processors. This watchdog watches your kernel to make sure
459 it doesn't freeze, and if it does, it reboots your computer after
460 a certain amount of time.
462 You can compile this driver directly into the kernel, or use
463 it as a module. The module will be called geodewdt.
466 tristate "AMD Elan SC520 processor Watchdog"
469 This is the driver for the hardware watchdog built in to the
470 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
471 This watchdog simply watches your kernel to make sure it doesn't
472 freeze, and if it does, it reboots your computer after a certain
475 You can compile this driver directly into the kernel, or use
476 it as a module. The module will be called sc520_wdt.
478 config SBC_FITPC2_WATCHDOG
479 tristate "Compulab SBC-FITPC2 watchdog"
482 This is the driver for the built-in watchdog timer on the fit-PC2,
483 fit-PC2i, CM-iAM single-board computers made by Compulab.
485 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
486 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
488 Entering BIOS setup temporary disables watchdog operation regardless to current state,
489 so system will not be restarted while user in BIOS setup.
491 Once watchdog was enabled the system will be restarted every
492 "Watchdog Timer Value" period, so to prevent it user can restart or
493 disable the watchdog.
495 To compile this driver as a module, choose M here: the
496 module will be called sbc_fitpc2_wdt.
498 Most people will say N.
501 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
504 Enable support for the watchdog timer on the Eurotech CPU-1220 and
505 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
506 information are at <http://www.eurotech.it/>.
509 tristate "IB700 SBC Watchdog Timer"
512 This is the driver for the hardware watchdog on the IB700 Single
513 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
514 simply watches your kernel to make sure it doesn't freeze, and if
515 it does, it reboots your computer after a certain amount of time.
517 This driver is like the WDT501 driver but for slightly different hardware.
519 To compile this driver as a module, choose M here: the
520 module will be called ib700wdt.
522 Most people will say N.
525 tristate "IBM Automatic Server Restart"
528 This is the driver for the IBM Automatic Server Restart watchdog
529 timer built-in into some eServer xSeries machines.
531 To compile this driver as a module, choose M here: the
532 module will be called ibmasr.
535 tristate "ICP Single Board Computer Watchdog Timer"
538 This is a driver for the hardware watchdog on the ICP Single
539 Board Computer. This driver is working on (at least) the following
540 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
542 To compile this driver as a module, choose M here: the
543 module will be called wafer5823wdt.
546 tristate "Intel 6300ESB Timer/Watchdog"
549 Hardware driver for the watchdog timer built into the Intel
550 6300ESB controller hub.
552 To compile this driver as a module, choose M here: the
553 module will be called i6300esb.
556 tristate "Intel Atom E6xx Watchdog"
557 depends on X86 && PCI
562 Hardware driver for the watchdog timer built into the Intel
563 Atom E6XX (TunnelCreek) processor.
565 To compile this driver as a module, choose M here: the
566 module will be called ie6xx_wdt.
568 config INTEL_SCU_WATCHDOG
569 bool "Intel SCU Watchdog for Mobile Platforms"
572 Hardware driver for the watchdog time built into the Intel SCU
573 for Intel Mobile Platforms.
575 To compile this driver as a module, choose M here.
578 tristate "Intel TCO Timer/Watchdog"
579 depends on (X86 || IA64) && PCI
582 Hardware driver for the intel TCO timer based watchdog devices.
583 These drivers are included in the Intel 82801 I/O Controller
584 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
587 The TCO (Total Cost of Ownership) timer is a watchdog timer
588 that will reboot the machine after its second expiration. The
589 expiration time can be configured with the "heartbeat" parameter.
591 On some motherboards the driver may fail to reset the chipset's
592 NO_REBOOT flag which prevents the watchdog from rebooting the
593 machine. If this is the case you will get a kernel message like
594 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
596 To compile this driver as a module, choose M here: the
597 module will be called iTCO_wdt.
599 config ITCO_VENDOR_SUPPORT
600 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
603 Add vendor specific support to the intel TCO timer based watchdog
604 devices. At this moment we only have additional support for some
605 SuperMicro Inc. motherboards.
608 tristate "IT8712F (Smart Guardian) Watchdog Timer"
611 This is the driver for the built-in watchdog timer on the IT8712F
612 Super I/0 chipset used on many motherboards.
614 If the driver does not work, then make sure that the game port in
617 To compile this driver as a module, choose M here: the
618 module will be called it8712f_wdt.
621 tristate "IT87 Watchdog Timer"
622 depends on X86 && EXPERIMENTAL
624 This is the driver for the hardware watchdog on the ITE IT8702,
625 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728
628 If the driver does not work, then make sure that the game port in
631 This watchdog simply watches your kernel to make sure it doesn't
632 freeze, and if it does, it reboots your computer after a certain
635 To compile this driver as a module, choose M here: the module will
639 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
640 depends on X86 && PCI
642 A software monitoring watchdog and NMI sourcing driver. This driver
643 will detect lockups and provide a stack trace. This is a driver that
644 will only load on an HP ProLiant system with a minimum of iLO2 support.
645 To compile this driver as a module, choose M here: the module will be
648 config HPWDT_NMI_DECODING
649 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
650 depends on HP_WATCHDOG
653 When an NMI occurs this feature will make the necessary BIOS calls to
654 log the cause of the NMI.
657 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
660 This is a driver for National Semiconductor PC87307/PC97307 hardware
661 watchdog cards as found on the SC1200. This watchdog is mainly used
662 for power management purposes and can be used to power down the device
663 during inactivity periods (includes interrupt activity monitoring).
665 To compile this driver as a module, choose M here: the
666 module will be called sc1200wdt.
668 Most people will say N.
671 tristate "National Semiconductor SCx200 Watchdog"
672 depends on SCx200 && PCI
674 Enable the built-in watchdog timer support on the National
675 Semiconductor SCx200 processors.
677 If compiled as a module, it will be called scx200_wdt.
680 tristate "NS PC87413 watchdog"
683 This is the driver for the hardware watchdog on the PC87413 chipset
684 This watchdog simply watches your kernel to make sure it doesn't
685 freeze, and if it does, it reboots your computer after a certain
688 To compile this driver as a module, choose M here: the
689 module will be called pc87413_wdt.
691 Most people will say N.
694 tristate "nVidia TCO Timer/Watchdog"
695 depends on X86 && PCI
697 Hardware driver for the TCO timer built into the nVidia Hub family
698 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
699 watchdog timer that will reboot the machine after its second
700 expiration. The expiration time can be configured with the
701 "heartbeat" parameter.
703 On some motherboards the driver may fail to reset the chipset's
704 NO_REBOOT flag which prevents the watchdog from rebooting the
705 machine. If this is the case you will get a kernel message like
706 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
708 To compile this driver as a module, choose M here: the
709 module will be called nv_tco.
712 tristate "RDC R-321x SoC watchdog"
713 depends on X86_RDC321X
715 This is the driver for the built in hardware watchdog
716 in the RDC R-321x SoC.
718 To compile this driver as a module, choose M here: the
719 module will be called rdc321x_wdt.
722 tristate "SBC-60XX Watchdog Timer"
725 This driver can be used with the watchdog timer found on some
726 single board computers, namely the 6010 PII based computer.
727 It may well work with other cards. It reads port 0x443 to enable
728 and re-set the watchdog timer, and reads port 0x45 to disable
729 the watchdog. If you have a card that behave in similar ways,
730 you can probably make this driver work with your card as well.
732 You can compile this driver directly into the kernel, or use
733 it as a module. The module will be called sbc60xxwdt.
736 tristate "SBC8360 Watchdog Timer"
740 This is the driver for the hardware watchdog on the SBC8360 Single
741 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
743 To compile this driver as a module, choose M here: the
744 module will be called sbc8360.
746 Most people will say N.
749 tristate "SBC Nano 7240 Watchdog Timer"
750 depends on X86_32 && !UML
752 This is the driver for the hardware watchdog found on the IEI
753 single board computers EPIC Nano 7240 (and likely others). This
754 watchdog simply watches your kernel to make sure it doesn't freeze,
755 and if it does, it reboots your computer after a certain amount of
758 To compile this driver as a module, choose M here: the
759 module will be called sbc7240_wdt.
762 tristate "SMA CPU5 Watchdog"
766 To compile this driver as a module, choose M here: the
767 module will be called cpu5wdt.
769 config SMSC_SCH311X_WDT
770 tristate "SMSC SCH311X Watchdog Timer"
773 This is the driver for the hardware watchdog timer on the
774 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
775 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
778 To compile this driver as a module, choose M here: the
779 module will be called sch311x_wdt.
781 config SMSC37B787_WDT
782 tristate "Winbond SMsC37B787 Watchdog Timer"
785 This is the driver for the hardware watchdog component on the
786 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
787 from Vision Systems and maybe others.
789 This watchdog simply watches your kernel to make sure it doesn't
790 freeze, and if it does, it reboots your computer after a certain
793 Usually a userspace daemon will notify the kernel WDT driver that
794 userspace is still alive, at regular intervals.
796 To compile this driver as a module, choose M here: the
797 module will be called smsc37b787_wdt.
799 Most people will say N.
802 tristate "VIA Watchdog Timer"
803 depends on X86 && PCI
806 This is the driver for the hardware watchdog timer on VIA
807 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
809 To compile this driver as a module, choose M here; the module
810 will be called via_wdt.
812 Most people will say N.
815 tristate "W83627HF/W83627DHG Watchdog Timer"
818 This is the driver for the hardware watchdog on the W83627HF chipset
819 as used in Advantech PC-9578 and Tyan S2721-533 motherboards
820 (and likely others). The driver also supports the W83627DHG chip.
821 This watchdog simply watches your kernel to make sure it doesn't
822 freeze, and if it does, it reboots your computer after a certain
825 To compile this driver as a module, choose M here: the
826 module will be called w83627hf_wdt.
828 Most people will say N.
831 tristate "W83697HF/W83697HG Watchdog Timer"
834 This is the driver for the hardware watchdog on the W83697HF/HG
835 chipset as used in Dedibox/VIA motherboards (and likely others).
836 This watchdog simply watches your kernel to make sure it doesn't
837 freeze, and if it does, it reboots your computer after a certain
840 To compile this driver as a module, choose M here: the
841 module will be called w83697hf_wdt.
843 Most people will say N.
846 tristate "W83697UG/W83697UF Watchdog Timer"
849 This is the driver for the hardware watchdog on the W83697UG/UF
850 chipset as used in MSI Fuzzy CX700 VIA motherboards (and likely others).
851 This watchdog simply watches your kernel to make sure it doesn't
852 freeze, and if it does, it reboots your computer after a certain
855 To compile this driver as a module, choose M here: the
856 module will be called w83697ug_wdt.
858 Most people will say N.
861 tristate "W83877F (EMACS) Watchdog Timer"
864 This is the driver for the hardware watchdog on the W83877F chipset
865 as used in EMACS PC-104 motherboards (and likely others). This
866 watchdog simply watches your kernel to make sure it doesn't freeze,
867 and if it does, it reboots your computer after a certain amount of
870 To compile this driver as a module, choose M here: the
871 module will be called w83877f_wdt.
873 Most people will say N.
876 tristate "W83977F (PCM-5335) Watchdog Timer"
879 This is the driver for the hardware watchdog on the W83977F I/O chip
880 as used in AAEON's PCM-5335 SBC (and likely others). This
881 watchdog simply watches your kernel to make sure it doesn't freeze,
882 and if it does, it reboots your computer after a certain amount of
885 To compile this driver as a module, choose M here: the
886 module will be called w83977f_wdt.
889 tristate "ZF MachZ Watchdog"
892 If you are using a ZF Micro MachZ processor, say Y here, otherwise
893 N. This is the driver for the watchdog timer built-in on that
894 processor using ZF-Logic interface. This watchdog simply watches
895 your kernel to make sure it doesn't freeze, and if it does, it
896 reboots your computer after a certain amount of time.
898 To compile this driver as a module, choose M here: the
899 module will be called machzwd.
901 config SBC_EPX_C3_WATCHDOG
902 tristate "Winsystems SBC EPX-C3 watchdog"
905 This is the driver for the built-in watchdog timer on the EPX-C3
906 Single-board computer made by Winsystems, Inc.
908 *Note*: This hardware watchdog is not probeable and thus there
909 is no way to know if writing to its IO address will corrupt
910 your system or have any real effect. The only way to be sure
911 that this driver does what you want is to make sure you
912 are running it on an EPX-C3 from Winsystems with the watchdog
913 timer at IO address 0x1ee and 0x1ef. It will write to both those
914 IO ports. Basically, the assumption is made that if you compile
915 this driver into your kernel and/or load it as a module, that you
916 know what you are doing and that you are in fact running on an
919 To compile this driver as a module, choose M here: the
920 module will be called sbc_epx_c3.
926 config M54xx_WATCHDOG
927 tristate "MCF54xx watchdog support"
930 To compile this driver as a module, choose M here: the
931 module will be called m54xx_wdt.
933 # MicroBlaze Architecture
935 config XILINX_WATCHDOG
936 tristate "Xilinx Watchdog timer"
937 depends on MICROBLAZE
939 Watchdog driver for the xps_timebase_wdt ip core.
941 IMPORTANT: The xps_timebase_wdt parent must have the property
942 "clock-frequency" at device tree.
944 To compile this driver as a module, choose M here: the
945 module will be called of_xilinx_wdt.
950 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
953 Hardware driver for the built-in watchdog timer on the Atheros
954 AR71XX/AR724X/AR913X SoCs.
957 tristate "Broadcom BCM47xx Watchdog Timer"
960 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
963 tristate "IDT RC32434 SoC Watchdog Timer"
964 depends on MIKROTIK_RB532
966 Hardware driver for the IDT RC32434 SoC built-in
969 To compile this driver as a module, choose M here: the
970 module will be called rc32434_wdt.
973 tristate "Indy/I2 Hardware Watchdog"
974 depends on SGI_HAS_INDYDOG
976 Hardware driver for the Indy's/I2's watchdog. This is a
977 watchdog timer that will reboot the machine after a 60 second
978 timer expired and no process has written to /dev/watchdog during
982 tristate "Ingenic jz4740 SoC hardware watchdog"
983 depends on MACH_JZ4740
986 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
989 tristate "MTX-1 Hardware Watchdog"
992 Hardware driver for the MTX-1 boards. This is a watchdog timer that
993 will reboot the machine after a 100 seconds timer expired.
996 tristate "PNX833x Hardware Watchdog"
997 depends on SOC_PNX8335
999 Hardware driver for the PNX833x's watchdog. This is a
1000 watchdog timer that will reboot the machine after a programmable
1001 timer has expired and no process has written to /dev/watchdog during
1005 tristate "Sibyte SoC hardware watchdog"
1008 Watchdog driver for the built in watchdog hardware in Sibyte
1009 SoC processors. There are apparently two watchdog timers
1010 on such processors; this driver supports only the first one,
1011 because currently Linux only supports exporting one watchdog
1014 To compile this driver as a loadable module, choose M here.
1015 The module will be called sb_wdog.
1018 tristate "TI AR7 Watchdog Timer"
1021 Hardware driver for the TI AR7 Watchdog Timer.
1024 tristate "Toshiba TXx9 Watchdog Timer"
1025 depends on CPU_TX39XX || CPU_TX49XX
1026 select WATCHDOG_CORE
1028 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1031 tristate "Cavium OCTEON SOC family Watchdog Timer"
1032 depends on CPU_CAVIUM_OCTEON
1034 select EXPORT_UASM if OCTEON_WDT = m
1036 Hardware driver for OCTEON's on chip watchdog timer.
1037 Enables the watchdog for all cores running Linux. It
1038 installs a NMI handler and pokes the watchdog based on an
1039 interrupt. On first expiration of the watchdog, the
1040 interrupt handler pokes it. The second expiration causes an
1041 NMI that prints a message. The third expiration causes a
1044 When userspace has /dev/watchdog open, no poking is done
1045 from the first interrupt, it is then only poked when the
1049 tristate "Broadcom BCM63xx hardware watchdog"
1052 Watchdog driver for the built in watchdog hardware in Broadcom
1055 To compile this driver as a loadable module, choose M here.
1056 The module will be called bcm63xx_wdt.
1059 tristate "Lantiq SoC watchdog"
1062 Hardware driver for the Lantiq SoC Watchdog Timer.
1064 # PARISC Architecture
1066 # POWERPC Architecture
1069 tristate "GE Watchdog Timer"
1072 Watchdog timer found in a number of GE single board computers.
1075 bool "MPC52xx Watchdog Timer"
1076 depends on PPC_MPC52xx
1078 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1081 tristate "MPC8xxx Platform Watchdog Timer"
1082 depends on PPC_8xx || PPC_83xx || PPC_86xx
1084 This driver is for a SoC level watchdog that exists on some
1085 Freescale PowerPC processors. So far this driver supports:
1090 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1093 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1097 tristate "PIKA FPGA Watchdog"
1101 This enables the watchdog in the PIKA FPGA. Currently used on
1105 tristate "PowerPC Book-E Watchdog Timer"
1106 depends on BOOKE || 4xx
1108 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1109 MPC85xx SOCs and the IBM PowerPC 440.
1111 Please see Documentation/watchdog/watchdog-api.txt for
1114 config BOOKE_WDT_DEFAULT_TIMEOUT
1115 int "PowerPC Book-E Watchdog Timer Default Timeout"
1116 depends on BOOKE_WDT
1117 default 38 if FSL_BOOKE
1118 range 0 63 if FSL_BOOKE
1119 default 3 if !FSL_BOOKE
1120 range 0 3 if !FSL_BOOKE
1122 Select the default watchdog timer period to be used by the PowerPC
1123 Book-E watchdog driver. A watchdog "event" occurs when the bit
1124 position represented by this number transitions from zero to one.
1126 For Freescale Book-E processors, this is a number between 0 and 63.
1127 For other Book-E processors, this is a number between 0 and 3.
1129 The value can be overridden by the wdt_period command-line parameter.
1131 # PPC64 Architecture
1133 config WATCHDOG_RTAS
1134 tristate "RTAS watchdog"
1137 This driver adds watchdog support for the RTAS watchdog.
1139 To compile this driver as a module, choose M here. The module
1140 will be called wdrtas.
1145 tristate "z/VM Watchdog Timer"
1148 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1149 provide a virtual watchdog timer to their guest that cause a
1150 user define Control Program command to be executed after a
1153 To compile this driver as a module, choose M here. The module
1154 will be called vmwatchdog.
1156 # SUPERH (sh + sh64) Architecture
1159 tristate "SuperH Watchdog"
1160 depends on SUPERH && (CPU_SH3 || CPU_SH4)
1161 select WATCHDOG_CORE
1163 This driver adds watchdog support for the integrated watchdog in the
1164 SuperH processors. If you have one of these processors and wish
1165 to have watchdog support enabled, say Y, otherwise say N.
1167 As a side note, saying Y here will automatically boost HZ to 1000
1168 so that the timer has a chance to clear the overflow counter. On
1169 slower systems (such as the SH-2 and SH-3) this will likely yield
1170 some performance issues. As such, the WDT should be avoided here
1171 unless it is absolutely necessary.
1173 To compile this driver as a module, choose M here: the
1174 module will be called shwdt.
1176 # SPARC Architecture
1178 # SPARC64 Architecture
1180 config WATCHDOG_CP1XXX
1181 tristate "CP1XXX Hardware Watchdog support"
1182 depends on SPARC64 && PCI
1184 This is the driver for the hardware watchdog timers present on
1185 Sun Microsystems CompactPCI models CP1400 and CP1500.
1187 To compile this driver as a module, choose M here: the
1188 module will be called cpwatchdog.
1190 If you do not have a CompactPCI model CP1400 or CP1500, or
1191 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1192 you should say N to this option.
1195 tristate "RIO Hardware Watchdog support"
1196 depends on SPARC64 && PCI
1198 Say Y here to support the hardware watchdog capability on Sun RIO
1199 machines. The watchdog timeout period is normally one minute but
1200 can be changed with a boot-time parameter.
1202 # XTENSA Architecture
1207 tristate "Xen Watchdog support"
1210 Say Y here to support the hypervisor watchdog capability provided
1211 by Xen 4.0 and newer. The watchdog timeout period is normally one
1212 minute but can be changed with a boot-time parameter.
1215 tristate "UML watchdog"
1219 # ISA-based Watchdog Cards
1222 comment "ISA-based Watchdog Cards"
1226 tristate "Berkshire Products ISA-PC Watchdog"
1229 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1230 This card simply watches your kernel to make sure it doesn't freeze,
1231 and if it does, it reboots your computer after a certain amount of
1232 time. This driver is like the WDT501 driver but for different
1233 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1234 watchdog cards can be ordered from <http://www.berkprod.com/>.
1236 To compile this driver as a module, choose M here: the
1237 module will be called pcwd.
1239 Most people will say N.
1242 tristate "Mixcom Watchdog"
1245 This is a driver for the Mixcom hardware watchdog cards. This
1246 watchdog simply watches your kernel to make sure it doesn't freeze,
1247 and if it does, it reboots your computer after a certain amount of
1250 To compile this driver as a module, choose M here: the
1251 module will be called mixcomwd.
1253 Most people will say N.
1256 tristate "WDT Watchdog timer"
1259 If you have a WDT500P or WDT501P watchdog board, say Y here,
1260 otherwise N. It is not possible to probe for this board, which means
1261 that you have to inform the kernel about the IO port and IRQ that
1262 is needed (you can do this via the io and irq parameters)
1264 To compile this driver as a module, choose M here: the
1265 module will be called wdt.
1268 # PCI-based Watchdog Cards
1271 comment "PCI-based Watchdog Cards"
1274 config PCIPCWATCHDOG
1275 tristate "Berkshire Products PCI-PC Watchdog"
1278 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1279 This card simply watches your kernel to make sure it doesn't freeze,
1280 and if it does, it reboots your computer after a certain amount of
1281 time. The card can also monitor the internal temperature of the PC.
1282 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1284 To compile this driver as a module, choose M here: the
1285 module will be called pcwd_pci.
1287 Most people will say N.
1290 tristate "PCI-WDT500/501 Watchdog timer"
1293 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1295 If you have a PCI-WDT501 watchdog board then you can enable the
1296 temperature sensor by setting the type parameter to 501.
1298 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1299 can do this via the tachometer parameter. Only do this if you have a
1300 fan tachometer actually set up.
1302 To compile this driver as a module, choose M here: the
1303 module will be called wdt_pci.
1306 # USB-based Watchdog Cards
1309 comment "USB-based Watchdog Cards"
1312 config USBPCWATCHDOG
1313 tristate "Berkshire Products USB-PC Watchdog"
1316 This is the driver for the Berkshire Products USB-PC Watchdog card.
1317 This card simply watches your kernel to make sure it doesn't freeze,
1318 and if it does, it reboots your computer after a certain amount of
1319 time. The card can also monitor the internal temperature of the PC.
1320 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1322 To compile this driver as a module, choose M here: the
1323 module will be called pcwd_usb.
1325 Most people will say N.