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"
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
129 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
130 reboot your system when the timeout is reached.
132 config 21285_WATCHDOG
133 tristate "DC21285 watchdog"
134 depends on FOOTBRIDGE
136 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
137 here if you wish to use this. Alternatively say M to compile the
138 driver as a module, which will be called wdt285.
140 This driver does not work on all machines. In particular, early CATS
141 boards have hardware problems that will cause the machine to simply
142 lock up if the watchdog fires.
144 "If in doubt, leave it out" - say N.
147 tristate "NetWinder WB83C977 watchdog"
148 depends on FOOTBRIDGE && ARCH_NETWINDER
150 Say Y here to include support for the WB977 watchdog included in
151 NetWinder machines. Alternatively say M to compile the driver as
152 a module, which will be called wdt977.
154 Not sure? It's safe to say N.
156 config IXP4XX_WATCHDOG
157 tristate "IXP4xx Watchdog"
158 depends on ARCH_IXP4XX
160 Say Y here if to include support for the watchdog timer
161 in the Intel IXP4xx network processors. This driver can
162 be built as a module by choosing M. The module will
163 be called ixp4xx_wdt.
165 Note: The internal IXP4xx watchdog does a soft CPU reset
166 which doesn't reset any peripherals. There are circumstances
167 where the watchdog will fail to reset the board correctly
168 (e.g., if the boot ROM is in an unreadable state).
170 Say N if you are unsure.
172 config KS8695_WATCHDOG
173 tristate "KS8695 watchdog"
174 depends on ARCH_KS8695
176 Watchdog timer embedded into KS8695 processor. This will reboot your
177 system when the timeout is reached.
179 config HAVE_S3C2410_WATCHDOG
182 This will include watchdog timer support for Samsung SoCs. If
183 you want to include watchdog support for any machine, kindly
184 select this in the respective mach-XXXX/Kconfig file.
186 config S3C2410_WATCHDOG
187 tristate "S3C2410 Watchdog"
188 depends on HAVE_S3C2410_WATCHDOG
191 Watchdog timer block in the Samsung SoCs. This will reboot
192 the system when the timer expires with the watchdog enabled.
194 The driver is limited by the speed of the system's PCLK
195 signal, so with reasonably fast systems (PCLK around 50-66MHz)
196 then watchdog intervals of over approximately 20seconds are
199 The driver can be built as a module by choosing M, and will
200 be called s3c2410_wdt
202 config SA1100_WATCHDOG
203 tristate "SA1100/PXA2xx watchdog"
204 depends on ARCH_SA1100 || ARCH_PXA
206 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
207 reboot your system when timeout is reached.
209 NOTE: once enabled, this timer cannot be disabled.
211 To compile this driver as a module, choose M here: the
212 module will be called sa1100_wdt.
215 tristate "Synopsys DesignWare watchdog"
216 depends on ARM && HAVE_CLK
218 Say Y here if to include support for the Synopsys DesignWare
219 watchdog timer found in many ARM chips.
220 To compile this driver as a module, choose M here: the
221 module will be called dw_wdt.
223 config MPCORE_WATCHDOG
224 tristate "MPcore watchdog"
225 depends on HAVE_ARM_TWD
227 Watchdog timer embedded into the MPcore system.
229 To compile this driver as a module, choose M here: the
230 module will be called mpcore_wdt.
232 config EP93XX_WATCHDOG
233 tristate "EP93xx Watchdog"
234 depends on ARCH_EP93XX
237 Say Y here if to include support for the watchdog timer
238 embedded in the Cirrus Logic EP93xx family of devices.
240 To compile this driver as a module, choose M here: the
241 module will be called ep93xx_wdt.
244 tristate "OMAP Watchdog"
245 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
248 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
249 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
251 config PNX4008_WATCHDOG
252 tristate "LPC32XX Watchdog"
253 depends on ARCH_LPC32XX
256 Say Y here if to include support for the watchdog timer
257 in the LPC32XX processor.
258 This driver can be built as a module by choosing M. The module
259 will be called pnx4008_wdt.
261 Say N if you are unsure.
264 tristate "IOP Watchdog"
266 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
268 Say Y here if to include support for the watchdog timer
269 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
270 be built as a module by choosing M. The module will
273 Note: The IOP13XX watchdog does an Internal Bus Reset which will
274 affect both cores and the peripherals of the IOP. The ATU-X
275 and/or ATUe configuration registers will remain intact, but if
276 operating as an Root Complex and/or Central Resource, the PCI-X
277 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
279 config DAVINCI_WATCHDOG
280 tristate "DaVinci watchdog"
281 depends on ARCH_DAVINCI
283 Say Y here if to include support for the watchdog timer
284 in the DaVinci DM644x/DM646x processors.
285 To compile this driver as a module, choose M here: the
286 module will be called davinci_wdt.
288 NOTE: once enabled, this timer cannot be disabled.
289 Say N if you are unsure.
291 config ORION_WATCHDOG
292 tristate "Orion watchdog"
293 depends on ARCH_ORION5X || ARCH_KIRKWOOD
296 Say Y here if to include support for the watchdog timer
297 in the Marvell Orion5x and Kirkwood ARM SoCs.
298 To compile this driver as a module, choose M here: the
299 module will be called orion_wdt.
301 config COH901327_WATCHDOG
302 bool "ST-Ericsson COH 901 327 watchdog"
304 default y if MACH_U300
307 Say Y here to include Watchdog timer support for the
308 watchdog embedded into the ST-Ericsson U300 series platforms.
309 This watchdog is used to reset the system and thus cannot be
310 compiled as a module.
312 config TWL4030_WATCHDOG
313 tristate "TWL4030 Watchdog"
314 depends on TWL4030_CORE
317 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
318 watchdog timer support for TWL4030 chips.
320 config STMP3XXX_WATCHDOG
321 tristate "Freescale STMP3XXX watchdog"
322 depends on ARCH_STMP3XXX
324 Say Y here if to include support for the watchdog timer
325 for the Sigmatel STMP37XX/378X SoC.
326 To compile this driver as a module, choose M here: the
327 module will be called stmp3xxx_wdt.
329 config STMP3XXX_RTC_WATCHDOG
330 tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
331 depends on RTC_DRV_STMP
334 Say Y here to include support for the watchdog timer inside
335 the RTC for the STMP37XX/378X or i.MX23/28 SoC.
336 To compile this driver as a module, choose M here: the
337 module will be called stmp3xxx_rtc_wdt.
339 config NUC900_WATCHDOG
340 tristate "Nuvoton NUC900 watchdog"
341 depends on ARCH_W90X900
343 Say Y here if to include support for the watchdog timer
344 for the Nuvoton NUC900 series SoCs.
345 To compile this driver as a module, choose M here: the
346 module will be called nuc900_wdt.
348 config TS72XX_WATCHDOG
349 tristate "TS-72XX SBC Watchdog"
350 depends on MACH_TS72XX
352 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
353 watchdog timer implemented in a external CPLD chip. Say Y here
354 if you want to support for the watchdog timer on TS-72XX boards.
356 To compile this driver as a module, choose M here: the
357 module will be called ts72xx_wdt.
359 config MAX63XX_WATCHDOG
360 tristate "Max63xx watchdog"
361 depends on ARM && HAS_IOMEM
364 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
367 tristate "IMX2+ Watchdog"
370 This is the driver for the hardware watchdog
371 on the Freescale IMX2 and later processors.
372 If you have one of these processors and wish to have
373 watchdog support enabled, say Y, otherwise say N.
375 To compile this driver as a module, choose M here: the
376 module will be called imx2_wdt.
378 config UX500_WATCHDOG
379 tristate "ST-Ericsson Ux500 watchdog"
380 depends on MFD_DB8500_PRCMU
384 Say Y here to include Watchdog timer support for the watchdog
385 existing in the prcmu of ST-Ericsson Ux500 series platforms.
387 To compile this driver as a module, choose M here: the
388 module will be called ux500_wdt.
391 tristate "Retu watchdog"
395 Retu watchdog driver for Nokia Internet Tablets (770, N800,
396 N810). At least on N800 the watchdog cannot be disabled, so
397 this driver is essential and you should enable it.
399 To compile this driver as a module, choose M here: the
400 module will be called retu_wdt.
404 config AT32AP700X_WDT
405 tristate "AT32AP700x watchdog"
406 depends on CPU_AT32AP700X
408 Watchdog timer embedded into AT32AP700x devices. This will reboot
409 your system when the timeout is reached.
411 # BLACKFIN Architecture
414 tristate "Blackfin On-Chip Watchdog Timer"
417 If you say yes here you will get support for the Blackfin On-Chip
418 Watchdog Timer. If you have one of these processors and wish to
419 have watchdog support enabled, say Y, otherwise say N.
421 To compile this driver as a module, choose M here: the
422 module will be called bfin_wdt.
430 # X86 (i386 + ia64 + x86_64) Architecture
433 tristate "Acquire SBC Watchdog Timer"
436 This is the driver for the hardware watchdog on Single Board
437 Computers produced by Acquire Inc (and others). This watchdog
438 simply watches your kernel to make sure it doesn't freeze, and if
439 it does, it reboots your computer after a certain amount of time.
441 To compile this driver as a module, choose M here: the
442 module will be called acquirewdt.
444 Most people will say N.
447 tristate "Advantech SBC Watchdog Timer"
450 If you are configuring a Linux kernel for the Advantech single-board
451 computer, say `Y' here to support its built-in watchdog timer
452 feature. More information can be found at
453 <http://www.advantech.com.tw/products/>
456 tristate "ALi M1535 PMU Watchdog Timer"
457 depends on X86 && PCI
459 This is the driver for the hardware watchdog on the ALi M1535 PMU.
461 To compile this driver as a module, choose M here: the
462 module will be called alim1535_wdt.
464 Most people will say N.
467 tristate "ALi M7101 PMU Computer Watchdog"
470 This is the driver for the hardware watchdog on the ALi M7101 PMU
471 as used in the x86 Cobalt servers and also found in some
472 SPARC Netra servers too.
474 To compile this driver as a module, choose M here: the
475 module will be called alim7101_wdt.
477 Most people will say N.
480 tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
483 This is the driver for the hardware watchdog on the Fintek
484 F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
486 You can compile this driver directly into the kernel, or use
487 it as a module. The module will be called f71808e_wdt.
490 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
491 depends on X86 && PCI
493 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
494 (Total Cost of Ownership) timer is a watchdog timer that will reboot
495 the machine after its expiration. The expiration time can be
496 configured with the "heartbeat" parameter.
498 To compile this driver as a module, choose M here: the
499 module will be called sp5100_tco.
502 tristate "AMD Geode CS5535/CS5536 Watchdog"
503 depends on CS5535_MFGPT
505 This driver enables a watchdog capability built into the
506 CS5535/CS5536 companion chips for the AMD Geode GX and LX
507 processors. This watchdog watches your kernel to make sure
508 it doesn't freeze, and if it does, it reboots your computer after
509 a certain amount of time.
511 You can compile this driver directly into the kernel, or use
512 it as a module. The module will be called geodewdt.
515 tristate "AMD Elan SC520 processor Watchdog"
518 This is the driver for the hardware watchdog built in to the
519 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
520 This watchdog simply watches your kernel to make sure it doesn't
521 freeze, and if it does, it reboots your computer after a certain
524 You can compile this driver directly into the kernel, or use
525 it as a module. The module will be called sc520_wdt.
527 config SBC_FITPC2_WATCHDOG
528 tristate "Compulab SBC-FITPC2 watchdog"
531 This is the driver for the built-in watchdog timer on the fit-PC2,
532 fit-PC2i, CM-iAM single-board computers made by Compulab.
534 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
535 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
537 Entering BIOS setup temporary disables watchdog operation regardless to current state,
538 so system will not be restarted while user in BIOS setup.
540 Once watchdog was enabled the system will be restarted every
541 "Watchdog Timer Value" period, so to prevent it user can restart or
542 disable the watchdog.
544 To compile this driver as a module, choose M here: the
545 module will be called sbc_fitpc2_wdt.
547 Most people will say N.
550 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
553 Enable support for the watchdog timer on the Eurotech CPU-1220 and
554 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
555 information are at <http://www.eurotech.it/>.
558 tristate "IB700 SBC Watchdog Timer"
561 This is the driver for the hardware watchdog on the IB700 Single
562 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
563 simply watches your kernel to make sure it doesn't freeze, and if
564 it does, it reboots your computer after a certain amount of time.
566 This driver is like the WDT501 driver but for slightly different hardware.
568 To compile this driver as a module, choose M here: the
569 module will be called ib700wdt.
571 Most people will say N.
574 tristate "IBM Automatic Server Restart"
577 This is the driver for the IBM Automatic Server Restart watchdog
578 timer built-in into some eServer xSeries machines.
580 To compile this driver as a module, choose M here: the
581 module will be called ibmasr.
584 tristate "ICP Single Board Computer Watchdog Timer"
587 This is a driver for the hardware watchdog on the ICP Single
588 Board Computer. This driver is working on (at least) the following
589 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
591 To compile this driver as a module, choose M here: the
592 module will be called wafer5823wdt.
595 tristate "Intel 6300ESB Timer/Watchdog"
598 Hardware driver for the watchdog timer built into the Intel
599 6300ESB controller hub.
601 To compile this driver as a module, choose M here: the
602 module will be called i6300esb.
605 tristate "Intel Atom E6xx Watchdog"
606 depends on X86 && PCI
611 Hardware driver for the watchdog timer built into the Intel
612 Atom E6XX (TunnelCreek) processor.
614 To compile this driver as a module, choose M here: the
615 module will be called ie6xx_wdt.
617 config INTEL_SCU_WATCHDOG
618 bool "Intel SCU Watchdog for Mobile Platforms"
619 depends on X86_INTEL_MID
621 Hardware driver for the watchdog time built into the Intel SCU
622 for Intel Mobile Platforms.
624 To compile this driver as a module, choose M here.
627 tristate "Intel TCO Timer/Watchdog"
628 depends on (X86 || IA64) && PCI
632 Hardware driver for the intel TCO timer based watchdog devices.
633 These drivers are included in the Intel 82801 I/O Controller
634 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
637 The TCO (Total Cost of Ownership) timer is a watchdog timer
638 that will reboot the machine after its second expiration. The
639 expiration time can be configured with the "heartbeat" parameter.
641 On some motherboards the driver may fail to reset the chipset's
642 NO_REBOOT flag which prevents the watchdog from rebooting the
643 machine. If this is the case you will get a kernel message like
644 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
646 To compile this driver as a module, choose M here: the
647 module will be called iTCO_wdt.
649 config ITCO_VENDOR_SUPPORT
650 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
653 Add vendor specific support to the intel TCO timer based watchdog
654 devices. At this moment we only have additional support for some
655 SuperMicro Inc. motherboards.
658 tristate "IT8712F (Smart Guardian) Watchdog Timer"
661 This is the driver for the built-in watchdog timer on the IT8712F
662 Super I/0 chipset used on many motherboards.
664 If the driver does not work, then make sure that the game port in
667 To compile this driver as a module, choose M here: the
668 module will be called it8712f_wdt.
671 tristate "IT87 Watchdog Timer"
674 This is the driver for the hardware watchdog on the ITE IT8702,
675 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728
678 If the driver does not work, then make sure that the game port in
681 This watchdog simply watches your kernel to make sure it doesn't
682 freeze, and if it does, it reboots your computer after a certain
685 To compile this driver as a module, choose M here: the module will
689 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
690 depends on X86 && PCI
692 A software monitoring watchdog and NMI sourcing driver. This driver
693 will detect lockups and provide a stack trace. This is a driver that
694 will only load on an HP ProLiant system with a minimum of iLO2 support.
695 To compile this driver as a module, choose M here: the module will be
698 config HPWDT_NMI_DECODING
699 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
700 depends on HP_WATCHDOG
703 When an NMI occurs this feature will make the necessary BIOS calls to
704 log the cause of the NMI.
707 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
710 This is a driver for National Semiconductor PC87307/PC97307 hardware
711 watchdog cards as found on the SC1200. This watchdog is mainly used
712 for power management purposes and can be used to power down the device
713 during inactivity periods (includes interrupt activity monitoring).
715 To compile this driver as a module, choose M here: the
716 module will be called sc1200wdt.
718 Most people will say N.
721 tristate "National Semiconductor SCx200 Watchdog"
722 depends on SCx200 && PCI
724 Enable the built-in watchdog timer support on the National
725 Semiconductor SCx200 processors.
727 If compiled as a module, it will be called scx200_wdt.
730 tristate "NS PC87413 watchdog"
733 This is the driver for the hardware watchdog on the PC87413 chipset
734 This watchdog simply watches your kernel to make sure it doesn't
735 freeze, and if it does, it reboots your computer after a certain
738 To compile this driver as a module, choose M here: the
739 module will be called pc87413_wdt.
741 Most people will say N.
744 tristate "nVidia TCO Timer/Watchdog"
745 depends on X86 && PCI
747 Hardware driver for the TCO timer built into the nVidia Hub family
748 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
749 watchdog timer that will reboot the machine after its second
750 expiration. The expiration time can be configured with the
751 "heartbeat" parameter.
753 On some motherboards the driver may fail to reset the chipset's
754 NO_REBOOT flag which prevents the watchdog from rebooting the
755 machine. If this is the case you will get a kernel message like
756 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
758 To compile this driver as a module, choose M here: the
759 module will be called nv_tco.
762 tristate "RDC R-321x SoC watchdog"
763 depends on X86_RDC321X
765 This is the driver for the built in hardware watchdog
766 in the RDC R-321x SoC.
768 To compile this driver as a module, choose M here: the
769 module will be called rdc321x_wdt.
772 tristate "SBC-60XX Watchdog Timer"
775 This driver can be used with the watchdog timer found on some
776 single board computers, namely the 6010 PII based computer.
777 It may well work with other cards. It reads port 0x443 to enable
778 and re-set the watchdog timer, and reads port 0x45 to disable
779 the watchdog. If you have a card that behave in similar ways,
780 you can probably make this driver work with your card as well.
782 You can compile this driver directly into the kernel, or use
783 it as a module. The module will be called sbc60xxwdt.
786 tristate "SBC8360 Watchdog Timer"
790 This is the driver for the hardware watchdog on the SBC8360 Single
791 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
793 To compile this driver as a module, choose M here: the
794 module will be called sbc8360.
796 Most people will say N.
799 tristate "SBC Nano 7240 Watchdog Timer"
800 depends on X86_32 && !UML
802 This is the driver for the hardware watchdog found on the IEI
803 single board computers EPIC Nano 7240 (and likely others). This
804 watchdog simply watches your kernel to make sure it doesn't freeze,
805 and if it does, it reboots your computer after a certain amount of
808 To compile this driver as a module, choose M here: the
809 module will be called sbc7240_wdt.
812 tristate "SMA CPU5 Watchdog"
816 To compile this driver as a module, choose M here: the
817 module will be called cpu5wdt.
819 config SMSC_SCH311X_WDT
820 tristate "SMSC SCH311X Watchdog Timer"
823 This is the driver for the hardware watchdog timer on the
824 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
825 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
828 To compile this driver as a module, choose M here: the
829 module will be called sch311x_wdt.
831 config SMSC37B787_WDT
832 tristate "Winbond SMsC37B787 Watchdog Timer"
835 This is the driver for the hardware watchdog component on the
836 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
837 from Vision Systems and maybe others.
839 This watchdog simply watches your kernel to make sure it doesn't
840 freeze, and if it does, it reboots your computer after a certain
843 Usually a userspace daemon will notify the kernel WDT driver that
844 userspace is still alive, at regular intervals.
846 To compile this driver as a module, choose M here: the
847 module will be called smsc37b787_wdt.
849 Most people will say N.
852 tristate "VIA Watchdog Timer"
853 depends on X86 && PCI
856 This is the driver for the hardware watchdog timer on VIA
857 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
859 To compile this driver as a module, choose M here; the module
860 will be called via_wdt.
862 Most people will say N.
865 tristate "W83627HF/W83627DHG Watchdog Timer"
868 This is the driver for the hardware watchdog on the W83627HF chipset
869 as used in Advantech PC-9578 and Tyan S2721-533 motherboards
870 (and likely others). The driver also supports the W83627DHG chip.
871 This watchdog simply watches your kernel to make sure it doesn't
872 freeze, and if it does, it reboots your computer after a certain
875 To compile this driver as a module, choose M here: the
876 module will be called w83627hf_wdt.
878 Most people will say N.
881 tristate "W83697HF/W83697HG Watchdog Timer"
884 This is the driver for the hardware watchdog on the W83697HF/HG
885 chipset as used in Dedibox/VIA motherboards (and likely others).
886 This watchdog simply watches your kernel to make sure it doesn't
887 freeze, and if it does, it reboots your computer after a certain
890 To compile this driver as a module, choose M here: the
891 module will be called w83697hf_wdt.
893 Most people will say N.
896 tristate "W83697UG/W83697UF Watchdog Timer"
899 This is the driver for the hardware watchdog on the W83697UG/UF
900 chipset as used in MSI Fuzzy CX700 VIA motherboards (and likely others).
901 This watchdog simply watches your kernel to make sure it doesn't
902 freeze, and if it does, it reboots your computer after a certain
905 To compile this driver as a module, choose M here: the
906 module will be called w83697ug_wdt.
908 Most people will say N.
911 tristate "W83877F (EMACS) Watchdog Timer"
914 This is the driver for the hardware watchdog on the W83877F chipset
915 as used in EMACS PC-104 motherboards (and likely others). This
916 watchdog simply watches your kernel to make sure it doesn't freeze,
917 and if it does, it reboots your computer after a certain amount of
920 To compile this driver as a module, choose M here: the
921 module will be called w83877f_wdt.
923 Most people will say N.
926 tristate "W83977F (PCM-5335) Watchdog Timer"
929 This is the driver for the hardware watchdog on the W83977F I/O chip
930 as used in AAEON's PCM-5335 SBC (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 w83977f_wdt.
939 tristate "ZF MachZ Watchdog"
942 If you are using a ZF Micro MachZ processor, say Y here, otherwise
943 N. This is the driver for the watchdog timer built-in on that
944 processor using ZF-Logic interface. This watchdog simply watches
945 your kernel to make sure it doesn't freeze, and if it does, it
946 reboots your computer after a certain amount of time.
948 To compile this driver as a module, choose M here: the
949 module will be called machzwd.
951 config SBC_EPX_C3_WATCHDOG
952 tristate "Winsystems SBC EPX-C3 watchdog"
955 This is the driver for the built-in watchdog timer on the EPX-C3
956 Single-board computer made by Winsystems, Inc.
958 *Note*: This hardware watchdog is not probeable and thus there
959 is no way to know if writing to its IO address will corrupt
960 your system or have any real effect. The only way to be sure
961 that this driver does what you want is to make sure you
962 are running it on an EPX-C3 from Winsystems with the watchdog
963 timer at IO address 0x1ee and 0x1ef. It will write to both those
964 IO ports. Basically, the assumption is made that if you compile
965 this driver into your kernel and/or load it as a module, that you
966 know what you are doing and that you are in fact running on an
969 To compile this driver as a module, choose M here: the
970 module will be called sbc_epx_c3.
976 config M54xx_WATCHDOG
977 tristate "MCF54xx watchdog support"
980 To compile this driver as a module, choose M here: the
981 module will be called m54xx_wdt.
983 # MicroBlaze Architecture
985 config XILINX_WATCHDOG
986 tristate "Xilinx Watchdog timer"
987 depends on MICROBLAZE
989 Watchdog driver for the xps_timebase_wdt ip core.
991 IMPORTANT: The xps_timebase_wdt parent must have the property
992 "clock-frequency" at device tree.
994 To compile this driver as a module, choose M here: the
995 module will be called of_xilinx_wdt.
1000 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1003 Hardware driver for the built-in watchdog timer on the Atheros
1004 AR71XX/AR724X/AR913X SoCs.
1007 tristate "Broadcom BCM47xx Watchdog Timer"
1010 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1013 tristate "IDT RC32434 SoC Watchdog Timer"
1014 depends on MIKROTIK_RB532
1016 Hardware driver for the IDT RC32434 SoC built-in
1019 To compile this driver as a module, choose M here: the
1020 module will be called rc32434_wdt.
1023 tristate "Indy/I2 Hardware Watchdog"
1024 depends on SGI_HAS_INDYDOG
1026 Hardware driver for the Indy's/I2's watchdog. This is a
1027 watchdog timer that will reboot the machine after a 60 second
1028 timer expired and no process has written to /dev/watchdog during
1032 tristate "Ingenic jz4740 SoC hardware watchdog"
1033 depends on MACH_JZ4740
1034 select WATCHDOG_CORE
1036 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1039 tristate "MTX-1 Hardware Watchdog"
1040 depends on MIPS_MTX1
1042 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1043 will reboot the machine after a 100 seconds timer expired.
1046 tristate "PNX833x Hardware Watchdog"
1047 depends on SOC_PNX8335
1049 Hardware driver for the PNX833x's watchdog. This is a
1050 watchdog timer that will reboot the machine after a programmable
1051 timer has expired and no process has written to /dev/watchdog during
1055 tristate "Sibyte SoC hardware watchdog"
1058 Watchdog driver for the built in watchdog hardware in Sibyte
1059 SoC processors. There are apparently two watchdog timers
1060 on such processors; this driver supports only the first one,
1061 because currently Linux only supports exporting one watchdog
1064 To compile this driver as a loadable module, choose M here.
1065 The module will be called sb_wdog.
1068 tristate "TI AR7 Watchdog Timer"
1071 Hardware driver for the TI AR7 Watchdog Timer.
1074 tristate "Toshiba TXx9 Watchdog Timer"
1075 depends on CPU_TX39XX || CPU_TX49XX
1076 select WATCHDOG_CORE
1078 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1081 tristate "Cavium OCTEON SOC family Watchdog Timer"
1082 depends on CPU_CAVIUM_OCTEON
1084 select EXPORT_UASM if OCTEON_WDT = m
1086 Hardware driver for OCTEON's on chip watchdog timer.
1087 Enables the watchdog for all cores running Linux. It
1088 installs a NMI handler and pokes the watchdog based on an
1089 interrupt. On first expiration of the watchdog, the
1090 interrupt handler pokes it. The second expiration causes an
1091 NMI that prints a message. The third expiration causes a
1094 When userspace has /dev/watchdog open, no poking is done
1095 from the first interrupt, it is then only poked when the
1099 tristate "Broadcom BCM63xx hardware watchdog"
1102 Watchdog driver for the built in watchdog hardware in Broadcom
1105 To compile this driver as a loadable module, choose M here.
1106 The module will be called bcm63xx_wdt.
1109 tristate "Lantiq SoC watchdog"
1112 Hardware driver for the Lantiq SoC Watchdog Timer.
1114 # PARISC Architecture
1116 # POWERPC Architecture
1119 tristate "GE Watchdog Timer"
1122 Watchdog timer found in a number of GE single board computers.
1125 bool "MPC52xx Watchdog Timer"
1126 depends on PPC_MPC52xx
1128 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1131 tristate "MPC8xxx Platform Watchdog Timer"
1132 depends on PPC_8xx || PPC_83xx || PPC_86xx
1134 This driver is for a SoC level watchdog that exists on some
1135 Freescale PowerPC processors. So far this driver supports:
1140 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1143 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1147 tristate "PIKA FPGA Watchdog"
1151 This enables the watchdog in the PIKA FPGA. Currently used on
1155 tristate "PowerPC Book-E Watchdog Timer"
1156 depends on BOOKE || 4xx
1158 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1159 MPC85xx SOCs and the IBM PowerPC 440.
1161 Please see Documentation/watchdog/watchdog-api.txt for
1164 config BOOKE_WDT_DEFAULT_TIMEOUT
1165 int "PowerPC Book-E Watchdog Timer Default Timeout"
1166 depends on BOOKE_WDT
1167 default 38 if PPC_FSL_BOOK3E
1168 range 0 63 if PPC_FSL_BOOK3E
1169 default 3 if !PPC_FSL_BOOK3E
1170 range 0 3 if !PPC_FSL_BOOK3E
1172 Select the default watchdog timer period to be used by the PowerPC
1173 Book-E watchdog driver. A watchdog "event" occurs when the bit
1174 position represented by this number transitions from zero to one.
1176 For Freescale Book-E processors, this is a number between 0 and 63.
1177 For other Book-E processors, this is a number between 0 and 3.
1179 The value can be overridden by the wdt_period command-line parameter.
1181 # PPC64 Architecture
1183 config WATCHDOG_RTAS
1184 tristate "RTAS watchdog"
1187 This driver adds watchdog support for the RTAS watchdog.
1189 To compile this driver as a module, choose M here. The module
1190 will be called wdrtas.
1195 tristate "z/VM Watchdog Timer"
1198 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1199 provide a virtual watchdog timer to their guest that cause a
1200 user define Control Program command to be executed after a
1203 To compile this driver as a module, choose M here. The module
1204 will be called vmwatchdog.
1206 # SUPERH (sh + sh64) Architecture
1209 tristate "SuperH Watchdog"
1210 depends on SUPERH && (CPU_SH3 || CPU_SH4)
1211 select WATCHDOG_CORE
1213 This driver adds watchdog support for the integrated watchdog in the
1214 SuperH processors. If you have one of these processors and wish
1215 to have watchdog support enabled, say Y, otherwise say N.
1217 As a side note, saying Y here will automatically boost HZ to 1000
1218 so that the timer has a chance to clear the overflow counter. On
1219 slower systems (such as the SH-2 and SH-3) this will likely yield
1220 some performance issues. As such, the WDT should be avoided here
1221 unless it is absolutely necessary.
1223 To compile this driver as a module, choose M here: the
1224 module will be called shwdt.
1226 # SPARC Architecture
1228 # SPARC64 Architecture
1230 config WATCHDOG_CP1XXX
1231 tristate "CP1XXX Hardware Watchdog support"
1232 depends on SPARC64 && PCI
1234 This is the driver for the hardware watchdog timers present on
1235 Sun Microsystems CompactPCI models CP1400 and CP1500.
1237 To compile this driver as a module, choose M here: the
1238 module will be called cpwatchdog.
1240 If you do not have a CompactPCI model CP1400 or CP1500, or
1241 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1242 you should say N to this option.
1245 tristate "RIO Hardware Watchdog support"
1246 depends on SPARC64 && PCI
1248 Say Y here to support the hardware watchdog capability on Sun RIO
1249 machines. The watchdog timeout period is normally one minute but
1250 can be changed with a boot-time parameter.
1252 # XTENSA Architecture
1257 tristate "Xen Watchdog support"
1260 Say Y here to support the hypervisor watchdog capability provided
1261 by Xen 4.0 and newer. The watchdog timeout period is normally one
1262 minute but can be changed with a boot-time parameter.
1265 tristate "UML watchdog"
1269 # ISA-based Watchdog Cards
1272 comment "ISA-based Watchdog Cards"
1276 tristate "Berkshire Products ISA-PC Watchdog"
1279 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1280 This card simply watches your kernel to make sure it doesn't freeze,
1281 and if it does, it reboots your computer after a certain amount of
1282 time. This driver is like the WDT501 driver but for different
1283 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1284 watchdog cards can be ordered from <http://www.berkprod.com/>.
1286 To compile this driver as a module, choose M here: the
1287 module will be called pcwd.
1289 Most people will say N.
1292 tristate "Mixcom Watchdog"
1295 This is a driver for the Mixcom hardware watchdog cards. This
1296 watchdog simply watches your kernel to make sure it doesn't freeze,
1297 and if it does, it reboots your computer after a certain amount of
1300 To compile this driver as a module, choose M here: the
1301 module will be called mixcomwd.
1303 Most people will say N.
1306 tristate "WDT Watchdog timer"
1309 If you have a WDT500P or WDT501P watchdog board, say Y here,
1310 otherwise N. It is not possible to probe for this board, which means
1311 that you have to inform the kernel about the IO port and IRQ that
1312 is needed (you can do this via the io and irq parameters)
1314 To compile this driver as a module, choose M here: the
1315 module will be called wdt.
1318 # PCI-based Watchdog Cards
1321 comment "PCI-based Watchdog Cards"
1324 config PCIPCWATCHDOG
1325 tristate "Berkshire Products PCI-PC Watchdog"
1328 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1329 This card simply watches your kernel to make sure it doesn't freeze,
1330 and if it does, it reboots your computer after a certain amount of
1331 time. The card can also monitor the internal temperature of the PC.
1332 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1334 To compile this driver as a module, choose M here: the
1335 module will be called pcwd_pci.
1337 Most people will say N.
1340 tristate "PCI-WDT500/501 Watchdog timer"
1343 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1345 If you have a PCI-WDT501 watchdog board then you can enable the
1346 temperature sensor by setting the type parameter to 501.
1348 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1349 can do this via the tachometer parameter. Only do this if you have a
1350 fan tachometer actually set up.
1352 To compile this driver as a module, choose M here: the
1353 module will be called wdt_pci.
1356 # USB-based Watchdog Cards
1359 comment "USB-based Watchdog Cards"
1362 config USBPCWATCHDOG
1363 tristate "Berkshire Products USB-PC Watchdog"
1366 This is the driver for the Berkshire Products USB-PC Watchdog card.
1367 This card simply watches your kernel to make sure it doesn't freeze,
1368 and if it does, it reboots your computer after a certain amount of
1369 time. The card can also monitor the internal temperature of the PC.
1370 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1372 To compile this driver as a module, choose M here: the
1373 module will be called pcwd_usb.
1375 Most people will say N.