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 WM831X_WATCHDOG
91 tristate "WM831x watchdog"
95 Support for the watchdog in the WM831x AudioPlus PMICs. When
96 the watchdog triggers the system will be reset.
98 config WM8350_WATCHDOG
99 tristate "WM8350 watchdog"
100 depends on MFD_WM8350
103 Support for the watchdog in the WM8350 AudioPlus PMIC. When
104 the watchdog triggers the system will be reset.
110 config ARM_SP805_WATCHDOG
111 tristate "ARM SP805 Watchdog"
112 depends on ARM && ARM_AMBA
115 ARM Primecell SP805 Watchdog timer. This will reboot your system when
116 the timeout is reached.
118 config AT91RM9200_WATCHDOG
119 tristate "AT91RM9200 watchdog"
120 depends on ARCH_AT91RM9200
122 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
123 system when the timeout is reached.
125 config AT91SAM9X_WATCHDOG
126 tristate "AT91SAM9X / AT91CAP9 watchdog"
127 depends on ARCH_AT91 && !ARCH_AT91RM9200
130 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
131 reboot your system when the timeout is reached.
133 config 21285_WATCHDOG
134 tristate "DC21285 watchdog"
135 depends on FOOTBRIDGE
137 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
138 here if you wish to use this. Alternatively say M to compile the
139 driver as a module, which will be called wdt285.
141 This driver does not work on all machines. In particular, early CATS
142 boards have hardware problems that will cause the machine to simply
143 lock up if the watchdog fires.
145 "If in doubt, leave it out" - say N.
148 tristate "NetWinder WB83C977 watchdog"
149 depends on FOOTBRIDGE && ARCH_NETWINDER
151 Say Y here to include support for the WB977 watchdog included in
152 NetWinder machines. Alternatively say M to compile the driver as
153 a module, which will be called wdt977.
155 Not sure? It's safe to say N.
157 config IXP4XX_WATCHDOG
158 tristate "IXP4xx Watchdog"
159 depends on ARCH_IXP4XX
161 Say Y here if to include support for the watchdog timer
162 in the Intel IXP4xx network processors. This driver can
163 be built as a module by choosing M. The module will
164 be called ixp4xx_wdt.
166 Note: The internal IXP4xx watchdog does a soft CPU reset
167 which doesn't reset any peripherals. There are circumstances
168 where the watchdog will fail to reset the board correctly
169 (e.g., if the boot ROM is in an unreadable state).
171 Say N if you are unsure.
173 config KS8695_WATCHDOG
174 tristate "KS8695 watchdog"
175 depends on ARCH_KS8695
177 Watchdog timer embedded into KS8695 processor. This will reboot your
178 system when the timeout is reached.
180 config HAVE_S3C2410_WATCHDOG
183 This will include watchdog timer support for Samsung SoCs. If
184 you want to include watchdog support for any machine, kindly
185 select this in the respective mach-XXXX/Kconfig file.
187 config S3C2410_WATCHDOG
188 tristate "S3C2410 Watchdog"
189 depends on HAVE_S3C2410_WATCHDOG
192 Watchdog timer block in the Samsung SoCs. This will reboot
193 the system when the timer expires with the watchdog enabled.
195 The driver is limited by the speed of the system's PCLK
196 signal, so with reasonably fast systems (PCLK around 50-66MHz)
197 then watchdog intervals of over approximately 20seconds are
200 The driver can be built as a module by choosing M, and will
201 be called s3c2410_wdt
203 config SA1100_WATCHDOG
204 tristate "SA1100/PXA2xx watchdog"
205 depends on ARCH_SA1100 || ARCH_PXA
207 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
208 reboot your system when timeout is reached.
210 NOTE: once enabled, this timer cannot be disabled.
212 To compile this driver as a module, choose M here: the
213 module will be called sa1100_wdt.
216 tristate "Synopsys DesignWare watchdog"
217 depends on ARM && HAVE_CLK
219 Say Y here if to include support for the Synopsys DesignWare
220 watchdog timer found in many ARM chips.
221 To compile this driver as a module, choose M here: the
222 module will be called dw_wdt.
224 config EP93XX_WATCHDOG
225 tristate "EP93xx Watchdog"
226 depends on ARCH_EP93XX
229 Say Y here if to include support for the watchdog timer
230 embedded in the Cirrus Logic EP93xx family of devices.
232 To compile this driver as a module, choose M here: the
233 module will be called ep93xx_wdt.
236 tristate "OMAP Watchdog"
237 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
240 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
241 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
243 config PNX4008_WATCHDOG
244 tristate "LPC32XX Watchdog"
245 depends on ARCH_LPC32XX
248 Say Y here if to include support for the watchdog timer
249 in the LPC32XX processor.
250 This driver can be built as a module by choosing M. The module
251 will be called pnx4008_wdt.
253 Say N if you are unsure.
256 tristate "IOP Watchdog"
258 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
260 Say Y here if to include support for the watchdog timer
261 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
262 be built as a module by choosing M. The module will
265 Note: The IOP13XX watchdog does an Internal Bus Reset which will
266 affect both cores and the peripherals of the IOP. The ATU-X
267 and/or ATUe configuration registers will remain intact, but if
268 operating as an Root Complex and/or Central Resource, the PCI-X
269 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
271 config DAVINCI_WATCHDOG
272 tristate "DaVinci watchdog"
273 depends on ARCH_DAVINCI || ARCH_KEYSTONE
276 Say Y here if to include support for the watchdog timer
277 in the DaVinci DM644x/DM646x or Keystone processors.
278 To compile this driver as a module, choose M here: the
279 module will be called davinci_wdt.
281 NOTE: once enabled, this timer cannot be disabled.
282 Say N if you are unsure.
284 config ORION_WATCHDOG
285 tristate "Orion watchdog"
286 depends on ARCH_ORION5X || ARCH_KIRKWOOD || ARCH_DOVE
289 Say Y here if to include support for the watchdog timer
290 in the Marvell Orion5x and Kirkwood ARM SoCs.
291 To compile this driver as a module, choose M here: the
292 module will be called orion_wdt.
294 config SUNXI_WATCHDOG
295 tristate "Allwinner SoCs watchdog support"
296 depends on ARCH_SUNXI
299 Say Y here to include support for the watchdog timer
301 To compile this driver as a module, choose M here: the
302 module will be called sunxi_wdt.
304 config COH901327_WATCHDOG
305 bool "ST-Ericsson COH 901 327 watchdog"
307 default y if MACH_U300
310 Say Y here to include Watchdog timer support for the
311 watchdog embedded into the ST-Ericsson U300 series platforms.
312 This watchdog is used to reset the system and thus cannot be
313 compiled as a module.
315 config TWL4030_WATCHDOG
316 tristate "TWL4030 Watchdog"
317 depends on TWL4030_CORE
320 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
321 watchdog timer support for TWL4030 chips.
323 config STMP3XXX_RTC_WATCHDOG
324 tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
325 depends on RTC_DRV_STMP
328 Say Y here to include support for the watchdog timer inside
329 the RTC for the STMP37XX/378X or i.MX23/28 SoC.
330 To compile this driver as a module, choose M here: the
331 module will be called stmp3xxx_rtc_wdt.
333 config NUC900_WATCHDOG
334 tristate "Nuvoton NUC900 watchdog"
335 depends on ARCH_W90X900
337 Say Y here if to include support for the watchdog timer
338 for the Nuvoton NUC900 series SoCs.
339 To compile this driver as a module, choose M here: the
340 module will be called nuc900_wdt.
342 config TS72XX_WATCHDOG
343 tristate "TS-72XX SBC Watchdog"
344 depends on MACH_TS72XX
346 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
347 watchdog timer implemented in a external CPLD chip. Say Y here
348 if you want to support for the watchdog timer on TS-72XX boards.
350 To compile this driver as a module, choose M here: the
351 module will be called ts72xx_wdt.
353 config MAX63XX_WATCHDOG
354 tristate "Max63xx watchdog"
355 depends on ARM && HAS_IOMEM
358 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
361 tristate "IMX2+ Watchdog"
364 This is the driver for the hardware watchdog
365 on the Freescale IMX2 and later processors.
366 If you have one of these processors and wish to have
367 watchdog support enabled, say Y, otherwise say N.
369 To compile this driver as a module, choose M here: the
370 module will be called imx2_wdt.
372 config UX500_WATCHDOG
373 tristate "ST-Ericsson Ux500 watchdog"
374 depends on MFD_DB8500_PRCMU
378 Say Y here to include Watchdog timer support for the watchdog
379 existing in the prcmu of ST-Ericsson Ux500 series platforms.
381 To compile this driver as a module, choose M here: the
382 module will be called ux500_wdt.
385 tristate "Retu watchdog"
389 Retu watchdog driver for Nokia Internet Tablets (770, N800,
390 N810). At least on N800 the watchdog cannot be disabled, so
391 this driver is essential and you should enable it.
393 To compile this driver as a module, choose M here: the
394 module will be called retu_wdt.
397 tristate "MOXART watchdog"
398 depends on ARCH_MOXART
400 Say Y here to include Watchdog timer support for the watchdog
401 existing on the MOXA ART SoC series platforms.
403 To compile this driver as a module, choose M here: the
404 module will be called moxart_wdt.
406 config SIRFSOC_WATCHDOG
407 tristate "SiRFSOC watchdog"
412 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
413 the watchdog triggers the system will be reset.
417 config AT32AP700X_WDT
418 tristate "AT32AP700x watchdog"
419 depends on CPU_AT32AP700X
421 Watchdog timer embedded into AT32AP700x devices. This will reboot
422 your system when the timeout is reached.
424 # BLACKFIN Architecture
427 tristate "Blackfin On-Chip Watchdog Timer"
430 If you say yes here you will get support for the Blackfin On-Chip
431 Watchdog Timer. If you have one of these processors and wish to
432 have watchdog support enabled, say Y, otherwise say N.
434 To compile this driver as a module, choose M here: the
435 module will be called bfin_wdt.
441 # X86 (i386 + ia64 + x86_64) Architecture
444 tristate "Acquire SBC Watchdog Timer"
447 This is the driver for the hardware watchdog on Single Board
448 Computers produced by Acquire Inc (and others). This watchdog
449 simply watches your kernel to make sure it doesn't freeze, and if
450 it does, it reboots your computer after a certain amount of time.
452 To compile this driver as a module, choose M here: the
453 module will be called acquirewdt.
455 Most people will say N.
458 tristate "Advantech SBC Watchdog Timer"
461 If you are configuring a Linux kernel for the Advantech single-board
462 computer, say `Y' here to support its built-in watchdog timer
463 feature. More information can be found at
464 <http://www.advantech.com.tw/products/>
467 tristate "ALi M1535 PMU Watchdog Timer"
468 depends on X86 && PCI
470 This is the driver for the hardware watchdog on the ALi M1535 PMU.
472 To compile this driver as a module, choose M here: the
473 module will be called alim1535_wdt.
475 Most people will say N.
478 tristate "ALi M7101 PMU Computer Watchdog"
481 This is the driver for the hardware watchdog on the ALi M7101 PMU
482 as used in the x86 Cobalt servers and also found in some
483 SPARC Netra servers too.
485 To compile this driver as a module, choose M here: the
486 module will be called alim7101_wdt.
488 Most people will say N.
491 tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
494 This is the driver for the hardware watchdog on the Fintek
495 F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
497 You can compile this driver directly into the kernel, or use
498 it as a module. The module will be called f71808e_wdt.
501 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
502 depends on X86 && PCI
504 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
505 (Total Cost of Ownership) timer is a watchdog timer that will reboot
506 the machine after its expiration. The expiration time can be
507 configured with the "heartbeat" parameter.
509 To compile this driver as a module, choose M here: the
510 module will be called sp5100_tco.
513 tristate "AMD Geode CS5535/CS5536 Watchdog"
514 depends on CS5535_MFGPT
516 This driver enables a watchdog capability built into the
517 CS5535/CS5536 companion chips for the AMD Geode GX and LX
518 processors. This watchdog watches your kernel to make sure
519 it doesn't freeze, and if it does, it reboots your computer after
520 a certain amount of time.
522 You can compile this driver directly into the kernel, or use
523 it as a module. The module will be called geodewdt.
526 tristate "AMD Elan SC520 processor Watchdog"
529 This is the driver for the hardware watchdog built in to the
530 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
531 This watchdog simply watches your kernel to make sure it doesn't
532 freeze, and if it does, it reboots your computer after a certain
535 You can compile this driver directly into the kernel, or use
536 it as a module. The module will be called sc520_wdt.
538 config SBC_FITPC2_WATCHDOG
539 tristate "Compulab SBC-FITPC2 watchdog"
542 This is the driver for the built-in watchdog timer on the fit-PC2,
543 fit-PC2i, CM-iAM single-board computers made by Compulab.
545 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
546 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
548 Entering BIOS setup temporary disables watchdog operation regardless to current state,
549 so system will not be restarted while user in BIOS setup.
551 Once watchdog was enabled the system will be restarted every
552 "Watchdog Timer Value" period, so to prevent it user can restart or
553 disable the watchdog.
555 To compile this driver as a module, choose M here: the
556 module will be called sbc_fitpc2_wdt.
558 Most people will say N.
561 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
564 Enable support for the watchdog timer on the Eurotech CPU-1220 and
565 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
566 information are at <http://www.eurotech.it/>.
569 tristate "IB700 SBC Watchdog Timer"
572 This is the driver for the hardware watchdog on the IB700 Single
573 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
574 simply watches your kernel to make sure it doesn't freeze, and if
575 it does, it reboots your computer after a certain amount of time.
577 This driver is like the WDT501 driver but for slightly different hardware.
579 To compile this driver as a module, choose M here: the
580 module will be called ib700wdt.
582 Most people will say N.
585 tristate "IBM Automatic Server Restart"
588 This is the driver for the IBM Automatic Server Restart watchdog
589 timer built-in into some eServer xSeries machines.
591 To compile this driver as a module, choose M here: the
592 module will be called ibmasr.
595 tristate "ICP Single Board Computer Watchdog Timer"
598 This is a driver for the hardware watchdog on the ICP Single
599 Board Computer. This driver is working on (at least) the following
600 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
602 To compile this driver as a module, choose M here: the
603 module will be called wafer5823wdt.
606 tristate "Intel 6300ESB Timer/Watchdog"
609 Hardware driver for the watchdog timer built into the Intel
610 6300ESB controller hub.
612 To compile this driver as a module, choose M here: the
613 module will be called i6300esb.
616 tristate "Intel Atom E6xx Watchdog"
617 depends on X86 && PCI
622 Hardware driver for the watchdog timer built into the Intel
623 Atom E6XX (TunnelCreek) processor.
625 To compile this driver as a module, choose M here: the
626 module will be called ie6xx_wdt.
628 config INTEL_SCU_WATCHDOG
629 bool "Intel SCU Watchdog for Mobile Platforms"
630 depends on X86_INTEL_MID
632 Hardware driver for the watchdog time built into the Intel SCU
633 for Intel Mobile Platforms.
635 To compile this driver as a module, choose M here.
638 tristate "Intel TCO Timer/Watchdog"
639 depends on (X86 || IA64) && PCI
643 Hardware driver for the intel TCO timer based watchdog devices.
644 These drivers are included in the Intel 82801 I/O Controller
645 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
648 The TCO (Total Cost of Ownership) timer is a watchdog timer
649 that will reboot the machine after its second expiration. The
650 expiration time can be configured with the "heartbeat" parameter.
652 On some motherboards the driver may fail to reset the chipset's
653 NO_REBOOT flag which prevents the watchdog from rebooting the
654 machine. If this is the case you will get a kernel message like
655 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
657 To compile this driver as a module, choose M here: the
658 module will be called iTCO_wdt.
660 config ITCO_VENDOR_SUPPORT
661 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
664 Add vendor specific support to the intel TCO timer based watchdog
665 devices. At this moment we only have additional support for some
666 SuperMicro Inc. motherboards.
669 tristate "IT8712F (Smart Guardian) Watchdog Timer"
672 This is the driver for the built-in watchdog timer on the IT8712F
673 Super I/0 chipset used on many motherboards.
675 If the driver does not work, then make sure that the game port in
678 To compile this driver as a module, choose M here: the
679 module will be called it8712f_wdt.
682 tristate "IT87 Watchdog Timer"
685 This is the driver for the hardware watchdog on the ITE IT8702,
686 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728
689 If the driver does not work, then make sure that the game port in
692 This watchdog simply watches your kernel to make sure it doesn't
693 freeze, and if it does, it reboots your computer after a certain
696 To compile this driver as a module, choose M here: the module will
700 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
701 depends on X86 && PCI
703 A software monitoring watchdog and NMI sourcing driver. This driver
704 will detect lockups and provide a stack trace. This is a driver that
705 will only load on an HP ProLiant system with a minimum of iLO2 support.
706 To compile this driver as a module, choose M here: the module will be
710 tristate "Kontron COM Watchdog Timer"
711 depends on MFD_KEMPLD
714 Support for the PLD watchdog on some Kontron ETX and COMexpress
717 This driver can also be built as a module. If so, the module will be
720 config HPWDT_NMI_DECODING
721 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
722 depends on HP_WATCHDOG
725 When an NMI occurs this feature will make the necessary BIOS calls to
726 log the cause of the NMI.
729 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
732 This is a driver for National Semiconductor PC87307/PC97307 hardware
733 watchdog cards as found on the SC1200. This watchdog is mainly used
734 for power management purposes and can be used to power down the device
735 during inactivity periods (includes interrupt activity monitoring).
737 To compile this driver as a module, choose M here: the
738 module will be called sc1200wdt.
740 Most people will say N.
743 tristate "National Semiconductor SCx200 Watchdog"
744 depends on SCx200 && PCI
746 Enable the built-in watchdog timer support on the National
747 Semiconductor SCx200 processors.
749 If compiled as a module, it will be called scx200_wdt.
752 tristate "NS PC87413 watchdog"
755 This is the driver for the hardware watchdog on the PC87413 chipset
756 This watchdog simply watches your kernel to make sure it doesn't
757 freeze, and if it does, it reboots your computer after a certain
760 To compile this driver as a module, choose M here: the
761 module will be called pc87413_wdt.
763 Most people will say N.
766 tristate "nVidia TCO Timer/Watchdog"
767 depends on X86 && PCI
769 Hardware driver for the TCO timer built into the nVidia Hub family
770 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
771 watchdog timer that will reboot the machine after its second
772 expiration. The expiration time can be configured with the
773 "heartbeat" parameter.
775 On some motherboards the driver may fail to reset the chipset's
776 NO_REBOOT flag which prevents the watchdog from rebooting the
777 machine. If this is the case you will get a kernel message like
778 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
780 To compile this driver as a module, choose M here: the
781 module will be called nv_tco.
784 tristate "RDC R-321x SoC watchdog"
785 depends on X86_RDC321X
787 This is the driver for the built in hardware watchdog
788 in the RDC R-321x SoC.
790 To compile this driver as a module, choose M here: the
791 module will be called rdc321x_wdt.
794 tristate "SBC-60XX Watchdog Timer"
797 This driver can be used with the watchdog timer found on some
798 single board computers, namely the 6010 PII based computer.
799 It may well work with other cards. It reads port 0x443 to enable
800 and re-set the watchdog timer, and reads port 0x45 to disable
801 the watchdog. If you have a card that behave in similar ways,
802 you can probably make this driver work with your card as well.
804 You can compile this driver directly into the kernel, or use
805 it as a module. The module will be called sbc60xxwdt.
808 tristate "SBC8360 Watchdog Timer"
812 This is the driver for the hardware watchdog on the SBC8360 Single
813 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
815 To compile this driver as a module, choose M here: the
816 module will be called sbc8360.
818 Most people will say N.
821 tristate "SBC Nano 7240 Watchdog Timer"
822 depends on X86_32 && !UML
824 This is the driver for the hardware watchdog found on the IEI
825 single board computers EPIC Nano 7240 (and likely others). This
826 watchdog simply watches your kernel to make sure it doesn't freeze,
827 and if it does, it reboots your computer after a certain amount of
830 To compile this driver as a module, choose M here: the
831 module will be called sbc7240_wdt.
834 tristate "SMA CPU5 Watchdog"
838 To compile this driver as a module, choose M here: the
839 module will be called cpu5wdt.
841 config SMSC_SCH311X_WDT
842 tristate "SMSC SCH311X Watchdog Timer"
845 This is the driver for the hardware watchdog timer on the
846 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
847 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
850 To compile this driver as a module, choose M here: the
851 module will be called sch311x_wdt.
853 config SMSC37B787_WDT
854 tristate "Winbond SMsC37B787 Watchdog Timer"
857 This is the driver for the hardware watchdog component on the
858 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
859 from Vision Systems and maybe others.
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 Usually a userspace daemon will notify the kernel WDT driver that
866 userspace is still alive, at regular intervals.
868 To compile this driver as a module, choose M here: the
869 module will be called smsc37b787_wdt.
871 Most people will say N.
874 tristate "VIA Watchdog Timer"
875 depends on X86 && PCI
878 This is the driver for the hardware watchdog timer on VIA
879 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
881 To compile this driver as a module, choose M here; the module
882 will be called via_wdt.
884 Most people will say N.
887 tristate "W83627HF/W83627DHG Watchdog Timer"
891 This is the driver for the hardware watchdog on the W83627HF chipset
892 as used in Advantech PC-9578 and Tyan S2721-533 motherboards
893 (and likely others). The driver also supports the W83627DHG chip.
894 This watchdog simply watches your kernel to make sure it doesn't
895 freeze, and if it does, it reboots your computer after a certain
898 To compile this driver as a module, choose M here: the
899 module will be called w83627hf_wdt.
901 Most people will say N.
904 tristate "W83697HF/W83697HG Watchdog Timer"
907 This is the driver for the hardware watchdog on the W83697HF/HG
908 chipset as used in Dedibox/VIA motherboards (and likely others).
909 This watchdog simply watches your kernel to make sure it doesn't
910 freeze, and if it does, it reboots your computer after a certain
913 To compile this driver as a module, choose M here: the
914 module will be called w83697hf_wdt.
916 Most people will say N.
919 tristate "W83697UG/W83697UF Watchdog Timer"
922 This is the driver for the hardware watchdog on the W83697UG/UF
923 chipset as used in MSI Fuzzy CX700 VIA motherboards (and likely others).
924 This watchdog simply watches your kernel to make sure it doesn't
925 freeze, and if it does, it reboots your computer after a certain
928 To compile this driver as a module, choose M here: the
929 module will be called w83697ug_wdt.
931 Most people will say N.
934 tristate "W83877F (EMACS) Watchdog Timer"
937 This is the driver for the hardware watchdog on the W83877F chipset
938 as used in EMACS PC-104 motherboards (and likely others). This
939 watchdog simply watches your kernel to make sure it doesn't freeze,
940 and if it does, it reboots your computer after a certain amount of
943 To compile this driver as a module, choose M here: the
944 module will be called w83877f_wdt.
946 Most people will say N.
949 tristate "W83977F (PCM-5335) Watchdog Timer"
952 This is the driver for the hardware watchdog on the W83977F I/O chip
953 as used in AAEON's PCM-5335 SBC (and likely others). This
954 watchdog simply watches your kernel to make sure it doesn't freeze,
955 and if it does, it reboots your computer after a certain amount of
958 To compile this driver as a module, choose M here: the
959 module will be called w83977f_wdt.
962 tristate "ZF MachZ Watchdog"
965 If you are using a ZF Micro MachZ processor, say Y here, otherwise
966 N. This is the driver for the watchdog timer built-in on that
967 processor using ZF-Logic interface. This watchdog simply watches
968 your kernel to make sure it doesn't freeze, and if it does, it
969 reboots your computer after a certain amount of time.
971 To compile this driver as a module, choose M here: the
972 module will be called machzwd.
974 config SBC_EPX_C3_WATCHDOG
975 tristate "Winsystems SBC EPX-C3 watchdog"
978 This is the driver for the built-in watchdog timer on the EPX-C3
979 Single-board computer made by Winsystems, Inc.
981 *Note*: This hardware watchdog is not probeable and thus there
982 is no way to know if writing to its IO address will corrupt
983 your system or have any real effect. The only way to be sure
984 that this driver does what you want is to make sure you
985 are running it on an EPX-C3 from Winsystems with the watchdog
986 timer at IO address 0x1ee and 0x1ef. It will write to both those
987 IO ports. Basically, the assumption is made that if you compile
988 this driver into your kernel and/or load it as a module, that you
989 know what you are doing and that you are in fact running on an
992 To compile this driver as a module, choose M here: the
993 module will be called sbc_epx_c3.
999 config M54xx_WATCHDOG
1000 tristate "MCF54xx watchdog support"
1003 To compile this driver as a module, choose M here: the
1004 module will be called m54xx_wdt.
1006 # MicroBlaze Architecture
1008 config XILINX_WATCHDOG
1009 tristate "Xilinx Watchdog timer"
1010 depends on MICROBLAZE
1012 Watchdog driver for the xps_timebase_wdt ip core.
1014 IMPORTANT: The xps_timebase_wdt parent must have the property
1015 "clock-frequency" at device tree.
1017 To compile this driver as a module, choose M here: the
1018 module will be called of_xilinx_wdt.
1023 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1026 Hardware driver for the built-in watchdog timer on the Atheros
1027 AR71XX/AR724X/AR913X SoCs.
1030 tristate "Broadcom BCM47xx Watchdog Timer"
1032 select WATCHDOG_CORE
1034 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1037 tristate "IDT RC32434 SoC Watchdog Timer"
1038 depends on MIKROTIK_RB532
1040 Hardware driver for the IDT RC32434 SoC built-in
1043 To compile this driver as a module, choose M here: the
1044 module will be called rc32434_wdt.
1047 tristate "Indy/I2 Hardware Watchdog"
1048 depends on SGI_HAS_INDYDOG
1050 Hardware driver for the Indy's/I2's watchdog. This is a
1051 watchdog timer that will reboot the machine after a 60 second
1052 timer expired and no process has written to /dev/watchdog during
1056 tristate "Ingenic jz4740 SoC hardware watchdog"
1057 depends on MACH_JZ4740
1058 select WATCHDOG_CORE
1060 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1063 tristate "MTX-1 Hardware Watchdog"
1064 depends on MIPS_MTX1
1066 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1067 will reboot the machine after a 100 seconds timer expired.
1070 tristate "PNX833x Hardware Watchdog"
1071 depends on SOC_PNX8335
1073 Hardware driver for the PNX833x's watchdog. This is a
1074 watchdog timer that will reboot the machine after a programmable
1075 timer has expired and no process has written to /dev/watchdog during
1079 tristate "Sibyte SoC hardware watchdog"
1082 Watchdog driver for the built in watchdog hardware in Sibyte
1083 SoC processors. There are apparently two watchdog timers
1084 on such processors; this driver supports only the first one,
1085 because currently Linux only supports exporting one watchdog
1088 To compile this driver as a loadable module, choose M here.
1089 The module will be called sb_wdog.
1092 tristate "TI AR7 Watchdog Timer"
1095 Hardware driver for the TI AR7 Watchdog Timer.
1098 tristate "Toshiba TXx9 Watchdog Timer"
1099 depends on CPU_TX39XX || CPU_TX49XX
1100 select WATCHDOG_CORE
1102 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1105 tristate "Cavium OCTEON SOC family Watchdog Timer"
1106 depends on CAVIUM_OCTEON_SOC
1108 select EXPORT_UASM if OCTEON_WDT = m
1110 Hardware driver for OCTEON's on chip watchdog timer.
1111 Enables the watchdog for all cores running Linux. It
1112 installs a NMI handler and pokes the watchdog based on an
1113 interrupt. On first expiration of the watchdog, the
1114 interrupt handler pokes it. The second expiration causes an
1115 NMI that prints a message. The third expiration causes a
1118 When userspace has /dev/watchdog open, no poking is done
1119 from the first interrupt, it is then only poked when the
1123 tristate "Broadcom BCM63xx hardware watchdog"
1126 Watchdog driver for the built in watchdog hardware in Broadcom
1129 To compile this driver as a loadable module, choose M here.
1130 The module will be called bcm63xx_wdt.
1133 tristate "Broadcom BCM2835 hardware watchdog"
1134 depends on ARCH_BCM2835
1135 select WATCHDOG_CORE
1137 Watchdog driver for the built in watchdog hardware in Broadcom
1140 To compile this driver as a loadable module, choose M here.
1141 The module will be called bcm2835_wdt.
1144 tristate "BCM Kona Watchdog"
1146 select WATCHDOG_CORE
1148 Support for the watchdog timer on the following Broadcom BCM281xx
1149 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1152 Say 'Y' or 'M' here to enable the driver. The module will be called
1155 config BCM_KONA_WDT_DEBUG
1156 bool "DEBUGFS support for BCM Kona Watchdog"
1157 depends on BCM_KONA_WDT
1159 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1160 access to the driver's internal data structures as well as watchdog
1161 timer hardware registres.
1163 If in doubt, say 'N'.
1166 tristate "Lantiq SoC watchdog"
1169 Hardware driver for the Lantiq SoC Watchdog Timer.
1172 tristate "Ralink SoC watchdog"
1173 select WATCHDOG_CORE
1176 Hardware driver for the Ralink SoC Watchdog Timer.
1178 # PARISC Architecture
1180 # POWERPC Architecture
1183 tristate "GE Watchdog Timer"
1186 Watchdog timer found in a number of GE single board computers.
1189 bool "MPC52xx Watchdog Timer"
1190 depends on PPC_MPC52xx
1192 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1195 tristate "MPC8xxx Platform Watchdog Timer"
1196 depends on PPC_8xx || PPC_83xx || PPC_86xx
1198 This driver is for a SoC level watchdog that exists on some
1199 Freescale PowerPC processors. So far this driver supports:
1204 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1207 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1211 tristate "PIKA FPGA Watchdog"
1215 This enables the watchdog in the PIKA FPGA. Currently used on
1219 tristate "PowerPC Book-E Watchdog Timer"
1220 depends on BOOKE || 4xx
1221 select WATCHDOG_CORE
1223 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1224 MPC85xx SOCs and the IBM PowerPC 440.
1226 Please see Documentation/watchdog/watchdog-api.txt for
1229 config BOOKE_WDT_DEFAULT_TIMEOUT
1230 int "PowerPC Book-E Watchdog Timer Default Timeout"
1231 depends on BOOKE_WDT
1232 default 38 if PPC_FSL_BOOK3E
1233 range 0 63 if PPC_FSL_BOOK3E
1234 default 3 if !PPC_FSL_BOOK3E
1235 range 0 3 if !PPC_FSL_BOOK3E
1237 Select the default watchdog timer period to be used by the PowerPC
1238 Book-E watchdog driver. A watchdog "event" occurs when the bit
1239 position represented by this number transitions from zero to one.
1241 For Freescale Book-E processors, this is a number between 0 and 63.
1242 For other Book-E processors, this is a number between 0 and 3.
1244 The value can be overridden by the wdt_period command-line parameter.
1247 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1248 select WATCHDOG_CORE
1251 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1253 The driver can also be built as a module. If so, the module will be
1256 If unsure select N here.
1258 # PPC64 Architecture
1260 config WATCHDOG_RTAS
1261 tristate "RTAS watchdog"
1264 This driver adds watchdog support for the RTAS watchdog.
1266 To compile this driver as a module, choose M here. The module
1267 will be called wdrtas.
1272 tristate "z/VM Watchdog Timer"
1275 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1276 provide a virtual watchdog timer to their guest that cause a
1277 user define Control Program command to be executed after a
1280 To compile this driver as a module, choose M here. The module
1281 will be called vmwatchdog.
1283 # SUPERH (sh + sh64) Architecture
1286 tristate "SuperH Watchdog"
1287 depends on SUPERH && (CPU_SH3 || CPU_SH4)
1288 select WATCHDOG_CORE
1290 This driver adds watchdog support for the integrated watchdog in the
1291 SuperH processors. If you have one of these processors and wish
1292 to have watchdog support enabled, say Y, otherwise say N.
1294 As a side note, saying Y here will automatically boost HZ to 1000
1295 so that the timer has a chance to clear the overflow counter. On
1296 slower systems (such as the SH-2 and SH-3) this will likely yield
1297 some performance issues. As such, the WDT should be avoided here
1298 unless it is absolutely necessary.
1300 To compile this driver as a module, choose M here: the
1301 module will be called shwdt.
1303 # SPARC Architecture
1305 # SPARC64 Architecture
1307 config WATCHDOG_CP1XXX
1308 tristate "CP1XXX Hardware Watchdog support"
1309 depends on SPARC64 && PCI
1311 This is the driver for the hardware watchdog timers present on
1312 Sun Microsystems CompactPCI models CP1400 and CP1500.
1314 To compile this driver as a module, choose M here: the
1315 module will be called cpwatchdog.
1317 If you do not have a CompactPCI model CP1400 or CP1500, or
1318 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1319 you should say N to this option.
1322 tristate "RIO Hardware Watchdog support"
1323 depends on SPARC64 && PCI
1325 Say Y here to support the hardware watchdog capability on Sun RIO
1326 machines. The watchdog timeout period is normally one minute but
1327 can be changed with a boot-time parameter.
1329 # XTENSA Architecture
1334 tristate "Xen Watchdog support"
1337 Say Y here to support the hypervisor watchdog capability provided
1338 by Xen 4.0 and newer. The watchdog timeout period is normally one
1339 minute but can be changed with a boot-time parameter.
1342 tristate "UML watchdog"
1346 # ISA-based Watchdog Cards
1349 comment "ISA-based Watchdog Cards"
1353 tristate "Berkshire Products ISA-PC Watchdog"
1356 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1357 This card simply watches your kernel to make sure it doesn't freeze,
1358 and if it does, it reboots your computer after a certain amount of
1359 time. This driver is like the WDT501 driver but for different
1360 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1361 watchdog cards can be ordered from <http://www.berkprod.com/>.
1363 To compile this driver as a module, choose M here: the
1364 module will be called pcwd.
1366 Most people will say N.
1369 tristate "Mixcom Watchdog"
1372 This is a driver for the Mixcom hardware watchdog cards. This
1373 watchdog simply watches your kernel to make sure it doesn't freeze,
1374 and if it does, it reboots your computer after a certain amount of
1377 To compile this driver as a module, choose M here: the
1378 module will be called mixcomwd.
1380 Most people will say N.
1383 tristate "WDT Watchdog timer"
1386 If you have a WDT500P or WDT501P watchdog board, say Y here,
1387 otherwise N. It is not possible to probe for this board, which means
1388 that you have to inform the kernel about the IO port and IRQ that
1389 is needed (you can do this via the io and irq parameters)
1391 To compile this driver as a module, choose M here: the
1392 module will be called wdt.
1395 # PCI-based Watchdog Cards
1398 comment "PCI-based Watchdog Cards"
1401 config PCIPCWATCHDOG
1402 tristate "Berkshire Products PCI-PC Watchdog"
1405 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1406 This card simply watches your kernel to make sure it doesn't freeze,
1407 and if it does, it reboots your computer after a certain amount of
1408 time. The card can also monitor the internal temperature of the PC.
1409 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1411 To compile this driver as a module, choose M here: the
1412 module will be called pcwd_pci.
1414 Most people will say N.
1417 tristate "PCI-WDT500/501 Watchdog timer"
1420 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1422 If you have a PCI-WDT501 watchdog board then you can enable the
1423 temperature sensor by setting the type parameter to 501.
1425 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1426 can do this via the tachometer parameter. Only do this if you have a
1427 fan tachometer actually set up.
1429 To compile this driver as a module, choose M here: the
1430 module will be called wdt_pci.
1433 # USB-based Watchdog Cards
1436 comment "USB-based Watchdog Cards"
1439 config USBPCWATCHDOG
1440 tristate "Berkshire Products USB-PC Watchdog"
1443 This is the driver for the Berkshire Products USB-PC Watchdog card.
1444 This card simply watches your kernel to make sure it doesn't freeze,
1445 and if it does, it reboots your computer after a certain amount of
1446 time. The card can also monitor the internal temperature of the PC.
1447 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1449 To compile this driver as a module, choose M here: the
1450 module will be called pcwd_usb.
1452 Most people will say N.