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
31 config WATCHDOG_NOWAYOUT
32 bool "Disable watchdog shutdown on close"
34 The default watchdog behaviour (which you get if you say N here) is
35 to stop the timer if the process managing it closes the file
36 /dev/watchdog. It's always remotely possible that this process might
37 get killed. If you say Y here, the watchdog cannot be stopped once
41 # General Watchdog drivers
44 comment "Watchdog Device Drivers"
46 # Architecture Independent
49 tristate "Software watchdog"
51 A software monitoring watchdog. This will fail to reboot your system
52 from some situations that the hardware watchdog will recover
53 from. Equally it's a lot cheaper to install.
55 To compile this driver as a module, choose M here: the
56 module will be called softdog.
58 config WM831X_WATCHDOG
59 tristate "WM831x watchdog"
62 Support for the watchdog in the WM831x AudioPlus PMICs. When
63 the watchdog triggers the system will be reset.
65 config WM8350_WATCHDOG
66 tristate "WM8350 watchdog"
69 Support for the watchdog in the WM8350 AudioPlus PMIC. When
70 the watchdog triggers the system will be reset.
77 tristate "RK29 watchdog"
80 Watchdog timer embedded into RK29xx chips. This will reboot your
81 system when the timeout is reached.
83 config RK29_FEED_DOG_BY_INTE
84 bool "feed watchdog by interrupt"
85 depends on RK29_WATCHDOG
87 config RK29_WATCHDOG_ATBOOT
88 bool "start watchdog at system boot"
89 depends on RK29_WATCHDOG
91 config RK29_WATCHDOG_DEFAULT_TIME
92 int "set watchdog time out value (unit second)"
93 depends on RK29_WATCHDOG
95 the real time out value is two times more than the setting value
97 config RK29_WATCHDOG_DEBUG
98 bool "enable watchdog debug"
99 depends on RK29_WATCHDOG
101 config ARM_SP805_WATCHDOG
102 tristate "ARM SP805 Watchdog"
105 ARM Primecell SP805 Watchdog timer. This will reboot your system when
106 the timeout is reached.
108 config AT91RM9200_WATCHDOG
109 tristate "AT91RM9200 watchdog"
110 depends on ARCH_AT91RM9200
112 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
113 system when the timeout is reached.
115 config AT91SAM9X_WATCHDOG
116 tristate "AT91SAM9X / AT91CAP9 watchdog"
117 depends on ARCH_AT91 && !ARCH_AT91RM9200
119 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
120 reboot your system when the timeout is reached.
122 config 21285_WATCHDOG
123 tristate "DC21285 watchdog"
124 depends on FOOTBRIDGE
126 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
127 here if you wish to use this. Alternatively say M to compile the
128 driver as a module, which will be called wdt285.
130 This driver does not work on all machines. In particular, early CATS
131 boards have hardware problems that will cause the machine to simply
132 lock up if the watchdog fires.
134 "If in doubt, leave it out" - say N.
137 tristate "NetWinder WB83C977 watchdog"
138 depends on FOOTBRIDGE && ARCH_NETWINDER
140 Say Y here to include support for the WB977 watchdog included in
141 NetWinder machines. Alternatively say M to compile the driver as
142 a module, which will be called wdt977.
144 Not sure? It's safe to say N.
146 config IXP2000_WATCHDOG
147 tristate "IXP2000 Watchdog"
148 depends on ARCH_IXP2000
150 Say Y here if to include support for the watchdog timer
151 in the Intel IXP2000(2400, 2800, 2850) network processors.
152 This driver can be built as a module by choosing M. The module
153 will be called ixp2000_wdt.
155 Say N if you are unsure.
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 ARCH_S3C2410 || 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.
214 config MPCORE_WATCHDOG
215 tristate "MPcore watchdog"
216 depends on HAVE_ARM_TWD
218 Watchdog timer embedded into the MPcore system.
220 To compile this driver as a module, choose M here: the
221 module will be called mpcore_wdt.
223 config EP93XX_WATCHDOG
224 tristate "EP93xx Watchdog"
225 depends on ARCH_EP93XX
227 Say Y here if to include support for the watchdog timer
228 embedded in the Cirrus Logic EP93xx family of devices.
230 To compile this driver as a module, choose M here: the
231 module will be called ep93xx_wdt.
234 tristate "OMAP Watchdog"
235 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
237 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
238 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
240 config PNX4008_WATCHDOG
241 tristate "PNX4008 and LPC32XX Watchdog"
242 depends on ARCH_PNX4008 || ARCH_LPC32XX
244 Say Y here if to include support for the watchdog timer
245 in the PNX4008 or LPC32XX processor.
246 This driver can be built as a module by choosing M. The module
247 will be called pnx4008_wdt.
249 Say N if you are unsure.
252 tristate "IOP Watchdog"
254 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
256 Say Y here if to include support for the watchdog timer
257 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
258 be built as a module by choosing M. The module will
261 Note: The IOP13XX watchdog does an Internal Bus Reset which will
262 affect both cores and the peripherals of the IOP. The ATU-X
263 and/or ATUe configuration registers will remain intact, but if
264 operating as an Root Complex and/or Central Resource, the PCI-X
265 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
267 config DAVINCI_WATCHDOG
268 tristate "DaVinci watchdog"
269 depends on ARCH_DAVINCI
271 Say Y here if to include support for the watchdog timer
272 in the DaVinci DM644x/DM646x processors.
273 To compile this driver as a module, choose M here: the
274 module will be called davinci_wdt.
276 NOTE: once enabled, this timer cannot be disabled.
277 Say N if you are unsure.
279 config ORION_WATCHDOG
280 tristate "Orion watchdog"
281 depends on ARCH_ORION5X || ARCH_KIRKWOOD
283 Say Y here if to include support for the watchdog timer
284 in the Marvell Orion5x and Kirkwood ARM SoCs.
285 To compile this driver as a module, choose M here: the
286 module will be called orion_wdt.
288 config COH901327_WATCHDOG
289 bool "ST-Ericsson COH 901 327 watchdog"
291 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.
324 tristate "Avionic Design Xanthos watchdog"
325 depends on ARCH_PXA_ADX
327 Say Y here if you want support for the watchdog timer on Avionic
328 Design Xanthos boards.
330 config TS72XX_WATCHDOG
331 tristate "TS-72XX SBC Watchdog"
332 depends on MACH_TS72XX
334 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
335 watchdog timer implemented in a external CPLD chip. Say Y here
336 if you want to support for the watchdog timer on TS-72XX boards.
338 To compile this driver as a module, choose M here: the
339 module will be called ts72xx_wdt.
341 config MAX63XX_WATCHDOG
342 tristate "Max63xx watchdog"
343 depends on ARM && HAS_IOMEM
345 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
348 tristate "IMX2+ Watchdog"
349 depends on ARCH_MX2 || ARCH_MX25 || ARCH_MX3 || ARCH_MX5
351 This is the driver for the hardware watchdog
352 on the Freescale IMX2 and later processors.
353 If you have one of these processors and wish to have
354 watchdog support enabled, say Y, otherwise say N.
356 To compile this driver as a module, choose M here: the
357 module will be called imx2_wdt.
361 config AT32AP700X_WDT
362 tristate "AT32AP700x watchdog"
363 depends on CPU_AT32AP700X
365 Watchdog timer embedded into AT32AP700x devices. This will reboot
366 your system when the timeout is reached.
368 # BLACKFIN Architecture
371 tristate "Blackfin On-Chip Watchdog Timer"
374 If you say yes here you will get support for the Blackfin On-Chip
375 Watchdog Timer. If you have one of these processors and wish to
376 have watchdog support enabled, say Y, otherwise say N.
378 To compile this driver as a module, choose M here: the
379 module will be called bfin_wdt.
387 # X86 (i386 + ia64 + x86_64) Architecture
390 tristate "Acquire SBC Watchdog Timer"
393 This is the driver for the hardware watchdog on Single Board
394 Computers produced by Acquire Inc (and others). This watchdog
395 simply watches your kernel to make sure it doesn't freeze, and if
396 it does, it reboots your computer after a certain amount of time.
398 To compile this driver as a module, choose M here: the
399 module will be called acquirewdt.
401 Most people will say N.
404 tristate "Advantech SBC Watchdog Timer"
407 If you are configuring a Linux kernel for the Advantech single-board
408 computer, say `Y' here to support its built-in watchdog timer
409 feature. More information can be found at
410 <http://www.advantech.com.tw/products/>
413 tristate "ALi M1535 PMU Watchdog Timer"
414 depends on X86 && PCI
416 This is the driver for the hardware watchdog on the ALi M1535 PMU.
418 To compile this driver as a module, choose M here: the
419 module will be called alim1535_wdt.
421 Most people will say N.
424 tristate "ALi M7101 PMU Computer Watchdog"
427 This is the driver for the hardware watchdog on the ALi M7101 PMU
428 as used in the x86 Cobalt servers and also found in some
429 SPARC Netra servers too.
431 To compile this driver as a module, choose M here: the
432 module will be called alim7101_wdt.
434 Most people will say N.
437 tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
438 depends on X86 && EXPERIMENTAL
440 This is the driver for the hardware watchdog on the Fintek
441 F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
443 You can compile this driver directly into the kernel, or use
444 it as a module. The module will be called f71808e_wdt.
447 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
448 depends on X86 && PCI
450 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
451 (Total Cost of Ownership) timer is a watchdog timer that will reboot
452 the machine after its expiration. The expiration time can be
453 configured with the "heartbeat" parameter.
455 To compile this driver as a module, choose M here: the
456 module will be called sp5100_tco.
459 tristate "AMD Geode CS5535/CS5536 Watchdog"
460 depends on CS5535_MFGPT
462 This driver enables a watchdog capability built into the
463 CS5535/CS5536 companion chips for the AMD Geode GX and LX
464 processors. This watchdog watches your kernel to make sure
465 it doesn't freeze, and if it does, it reboots your computer after
466 a certain amount of time.
468 You can compile this driver directly into the kernel, or use
469 it as a module. The module will be called geodewdt.
472 tristate "AMD Elan SC520 processor Watchdog"
475 This is the driver for the hardware watchdog built in to the
476 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
477 This watchdog simply watches your kernel to make sure it doesn't
478 freeze, and if it does, it reboots your computer after a certain
481 You can compile this driver directly into the kernel, or use
482 it as a module. The module will be called sc520_wdt.
484 config SBC_FITPC2_WATCHDOG
485 tristate "Compulab SBC-FITPC2 watchdog"
488 This is the driver for the built-in watchdog timer on the fit-PC2,
489 fit-PC2i, CM-iAM single-board computers made by Compulab.
491 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
492 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
494 Entering BIOS setup temporary disables watchdog operation regardless to current state,
495 so system will not be restarted while user in BIOS setup.
497 Once watchdog was enabled the system will be restarted every
498 "Watchdog Timer Value" period, so to prevent it user can restart or
499 disable the watchdog.
501 To compile this driver as a module, choose M here: the
502 module will be called sbc_fitpc2_wdt.
504 Most people will say N.
507 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
510 Enable support for the watchdog timer on the Eurotech CPU-1220 and
511 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
512 information are at <http://www.eurotech.it/>.
515 tristate "IB700 SBC Watchdog Timer"
518 This is the driver for the hardware watchdog on the IB700 Single
519 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
520 simply watches your kernel to make sure it doesn't freeze, and if
521 it does, it reboots your computer after a certain amount of time.
523 This driver is like the WDT501 driver but for slightly different hardware.
525 To compile this driver as a module, choose M here: the
526 module will be called ib700wdt.
528 Most people will say N.
531 tristate "IBM Automatic Server Restart"
534 This is the driver for the IBM Automatic Server Restart watchdog
535 timer built-in into some eServer xSeries machines.
537 To compile this driver as a module, choose M here: the
538 module will be called ibmasr.
541 tristate "ICP Single Board Computer Watchdog Timer"
544 This is a driver for the hardware watchdog on the ICP Single
545 Board Computer. This driver is working on (at least) the following
546 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
548 To compile this driver as a module, choose M here: the
549 module will be called wafer5823wdt.
552 tristate "Intel 6300ESB Timer/Watchdog"
553 depends on X86 && PCI
555 Hardware driver for the watchdog timer built into the Intel
556 6300ESB controller hub.
558 To compile this driver as a module, choose M here: the
559 module will be called i6300esb.
561 config INTEL_SCU_WATCHDOG
562 bool "Intel SCU Watchdog for Mobile Platforms"
565 Hardware driver for the watchdog time built into the Intel SCU
566 for Intel Mobile Platforms.
568 To compile this driver as a module, choose M here.
571 tristate "Intel TCO Timer/Watchdog"
572 depends on (X86 || IA64) && PCI
574 Hardware driver for the intel TCO timer based watchdog devices.
575 These drivers are included in the Intel 82801 I/O Controller
576 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
579 The TCO (Total Cost of Ownership) timer is a watchdog timer
580 that will reboot the machine after its second expiration. The
581 expiration time can be configured with the "heartbeat" parameter.
583 On some motherboards the driver may fail to reset the chipset's
584 NO_REBOOT flag which prevents the watchdog from rebooting the
585 machine. If this is the case you will get a kernel message like
586 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
588 To compile this driver as a module, choose M here: the
589 module will be called iTCO_wdt.
591 config ITCO_VENDOR_SUPPORT
592 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
595 Add vendor specific support to the intel TCO timer based watchdog
596 devices. At this moment we only have additional support for some
597 SuperMicro Inc. motherboards.
600 tristate "IT8712F (Smart Guardian) Watchdog Timer"
603 This is the driver for the built-in watchdog timer on the IT8712F
604 Super I/0 chipset used on many motherboards.
606 If the driver does not work, then make sure that the game port in
609 To compile this driver as a module, choose M here: the
610 module will be called it8712f_wdt.
613 tristate "IT87 Watchdog Timer"
614 depends on X86 && EXPERIMENTAL
616 This is the driver for the hardware watchdog on the ITE IT8702,
617 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 Super I/O chips.
618 This watchdog simply watches your kernel to make sure it doesn't
619 freeze, and if it does, it reboots your computer after a certain
622 To compile this driver as a module, choose M here: the module will
626 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
627 depends on X86 && PCI
629 A software monitoring watchdog and NMI sourcing driver. This driver
630 will detect lockups and provide a stack trace. This is a driver that
631 will only load on an HP ProLiant system with a minimum of iLO2 support.
632 To compile this driver as a module, choose M here: the module will be
635 config HPWDT_NMI_DECODING
636 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
637 depends on HP_WATCHDOG
640 When an NMI occurs this feature will make the necessary BIOS calls to
641 log the cause of the NMI.
644 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
647 This is a driver for National Semiconductor PC87307/PC97307 hardware
648 watchdog cards as found on the SC1200. This watchdog is mainly used
649 for power management purposes and can be used to power down the device
650 during inactivity periods (includes interrupt activity monitoring).
652 To compile this driver as a module, choose M here: the
653 module will be called sc1200wdt.
655 Most people will say N.
658 tristate "National Semiconductor SCx200 Watchdog"
659 depends on SCx200 && PCI
661 Enable the built-in watchdog timer support on the National
662 Semiconductor SCx200 processors.
664 If compiled as a module, it will be called scx200_wdt.
667 tristate "NS PC87413 watchdog"
670 This is the driver for the hardware watchdog on the PC87413 chipset
671 This watchdog simply watches your kernel to make sure it doesn't
672 freeze, and if it does, it reboots your computer after a certain
675 To compile this driver as a module, choose M here: the
676 module will be called pc87413_wdt.
678 Most people will say N.
681 tristate "nVidia TCO Timer/Watchdog"
682 depends on X86 && PCI
684 Hardware driver for the TCO timer built into the nVidia Hub family
685 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
686 watchdog timer that will reboot the machine after its second
687 expiration. The expiration time can be configured with the
688 "heartbeat" parameter.
690 On some motherboards the driver may fail to reset the chipset's
691 NO_REBOOT flag which prevents the watchdog from rebooting the
692 machine. If this is the case you will get a kernel message like
693 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
695 To compile this driver as a module, choose M here: the
696 module will be called nv_tco.
699 tristate "RDC R-321x SoC watchdog"
700 depends on X86_RDC321X
702 This is the driver for the built in hardware watchdog
703 in the RDC R-321x SoC.
705 To compile this driver as a module, choose M here: the
706 module will be called rdc321x_wdt.
709 tristate "SBC-60XX Watchdog Timer"
712 This driver can be used with the watchdog timer found on some
713 single board computers, namely the 6010 PII based computer.
714 It may well work with other cards. It reads port 0x443 to enable
715 and re-set the watchdog timer, and reads port 0x45 to disable
716 the watchdog. If you have a card that behave in similar ways,
717 you can probably make this driver work with your card as well.
719 You can compile this driver directly into the kernel, or use
720 it as a module. The module will be called sbc60xxwdt.
723 tristate "SBC8360 Watchdog Timer"
727 This is the driver for the hardware watchdog on the SBC8360 Single
728 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
730 To compile this driver as a module, choose M here: the
731 module will be called sbc8360.
733 Most people will say N.
736 tristate "SBC Nano 7240 Watchdog Timer"
739 This is the driver for the hardware watchdog found on the IEI
740 single board computers EPIC Nano 7240 (and likely others). This
741 watchdog simply watches your kernel to make sure it doesn't freeze,
742 and if it does, it reboots your computer after a certain amount of
745 To compile this driver as a module, choose M here: the
746 module will be called sbc7240_wdt.
749 tristate "SMA CPU5 Watchdog"
753 To compile this driver as a module, choose M here: the
754 module will be called cpu5wdt.
756 config SMSC_SCH311X_WDT
757 tristate "SMSC SCH311X Watchdog Timer"
760 This is the driver for the hardware watchdog timer on the
761 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
762 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
765 To compile this driver as a module, choose M here: the
766 module will be called sch311x_wdt.
768 config SMSC37B787_WDT
769 tristate "Winbond SMsC37B787 Watchdog Timer"
772 This is the driver for the hardware watchdog component on the
773 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
774 from Vision Systems and maybe others.
776 This watchdog simply watches your kernel to make sure it doesn't
777 freeze, and if it does, it reboots your computer after a certain
780 Usually a userspace daemon will notify the kernel WDT driver that
781 userspace is still alive, at regular intervals.
783 To compile this driver as a module, choose M here: the
784 module will be called smsc37b787_wdt.
786 Most people will say N.
789 tristate "W83627HF/W83627DHG Watchdog Timer"
792 This is the driver for the hardware watchdog on the W83627HF chipset
793 as used in Advantech PC-9578 and Tyan S2721-533 motherboards
794 (and likely others). The driver also supports the W83627DHG chip.
795 This watchdog simply watches your kernel to make sure it doesn't
796 freeze, and if it does, it reboots your computer after a certain
799 To compile this driver as a module, choose M here: the
800 module will be called w83627hf_wdt.
802 Most people will say N.
805 tristate "W83697HF/W83697HG Watchdog Timer"
808 This is the driver for the hardware watchdog on the W83697HF/HG
809 chipset as used in Dedibox/VIA motherboards (and likely others).
810 This watchdog simply watches your kernel to make sure it doesn't
811 freeze, and if it does, it reboots your computer after a certain
814 To compile this driver as a module, choose M here: the
815 module will be called w83697hf_wdt.
817 Most people will say N.
820 tristate "W83697UG/W83697UF Watchdog Timer"
823 This is the driver for the hardware watchdog on the W83697UG/UF
824 chipset as used in MSI Fuzzy CX700 VIA motherboards (and likely others).
825 This watchdog simply watches your kernel to make sure it doesn't
826 freeze, and if it does, it reboots your computer after a certain
829 To compile this driver as a module, choose M here: the
830 module will be called w83697ug_wdt.
832 Most people will say N.
835 tristate "W83877F (EMACS) Watchdog Timer"
838 This is the driver for the hardware watchdog on the W83877F chipset
839 as used in EMACS PC-104 motherboards (and likely others). This
840 watchdog simply watches your kernel to make sure it doesn't freeze,
841 and if it does, it reboots your computer after a certain amount of
844 To compile this driver as a module, choose M here: the
845 module will be called w83877f_wdt.
847 Most people will say N.
850 tristate "W83977F (PCM-5335) Watchdog Timer"
853 This is the driver for the hardware watchdog on the W83977F I/O chip
854 as used in AAEON's PCM-5335 SBC (and likely others). This
855 watchdog simply watches your kernel to make sure it doesn't freeze,
856 and if it does, it reboots your computer after a certain amount of
859 To compile this driver as a module, choose M here: the
860 module will be called w83977f_wdt.
863 tristate "ZF MachZ Watchdog"
866 If you are using a ZF Micro MachZ processor, say Y here, otherwise
867 N. This is the driver for the watchdog timer built-in on that
868 processor using ZF-Logic interface. This watchdog simply watches
869 your kernel to make sure it doesn't freeze, and if it does, it
870 reboots your computer after a certain amount of time.
872 To compile this driver as a module, choose M here: the
873 module will be called machzwd.
875 config SBC_EPX_C3_WATCHDOG
876 tristate "Winsystems SBC EPX-C3 watchdog"
879 This is the driver for the built-in watchdog timer on the EPX-C3
880 Single-board computer made by Winsystems, Inc.
882 *Note*: This hardware watchdog is not probeable and thus there
883 is no way to know if writing to its IO address will corrupt
884 your system or have any real effect. The only way to be sure
885 that this driver does what you want is to make sure you
886 are running it on an EPX-C3 from Winsystems with the watchdog
887 timer at IO address 0x1ee and 0x1ef. It will write to both those
888 IO ports. Basically, the assumption is made that if you compile
889 this driver into your kernel and/or load it as a module, that you
890 know what you are doing and that you are in fact running on an
893 To compile this driver as a module, choose M here: the
894 module will be called sbc_epx_c3.
900 config M54xx_WATCHDOG
901 tristate "MCF54xx watchdog support"
904 To compile this driver as a module, choose M here: the
905 module will be called m54xx_wdt.
910 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
913 Hardware driver for the built-in watchdog timer on the Atheros
914 AR71XX/AR724X/AR913X SoCs.
917 tristate "Broadcom BCM47xx Watchdog Timer"
920 Hardware driver for the Broadcom BCM47xx Watchog Timer.
923 tristate "IDT RC32434 SoC Watchdog Timer"
924 depends on MIKROTIK_RB532
926 Hardware driver for the IDT RC32434 SoC built-in
929 To compile this driver as a module, choose M here: the
930 module will be called rc32434_wdt.
933 tristate "Indy/I2 Hardware Watchdog"
934 depends on SGI_HAS_INDYDOG
936 Hardware driver for the Indy's/I2's watchdog. This is a
937 watchdog timer that will reboot the machine after a 60 second
938 timer expired and no process has written to /dev/watchdog during
942 tristate "Ingenic jz4740 SoC hardware watchdog"
943 depends on MACH_JZ4740
945 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
948 tristate "MTX-1 Hardware Watchdog"
951 Hardware driver for the MTX-1 boards. This is a watchdog timer that
952 will reboot the machine after a 100 seconds timer expired.
955 tristate "PNX833x Hardware Watchdog"
956 depends on SOC_PNX8335
958 Hardware driver for the PNX833x's watchdog. This is a
959 watchdog timer that will reboot the machine after a programmable
960 timer has expired and no process has written to /dev/watchdog during
964 tristate "Sibyte SoC hardware watchdog"
967 Watchdog driver for the built in watchdog hardware in Sibyte
968 SoC processors. There are apparently two watchdog timers
969 on such processors; this driver supports only the first one,
970 because currently Linux only supports exporting one watchdog
973 To compile this driver as a loadable module, choose M here.
974 The module will be called sb_wdog.
977 tristate "TI AR7 Watchdog Timer"
980 Hardware driver for the TI AR7 Watchdog Timer.
983 tristate "Toshiba TXx9 Watchdog Timer"
984 depends on CPU_TX39XX || CPU_TX49XX
986 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
989 tristate "Cavium OCTEON SOC family Watchdog Timer"
990 depends on CPU_CAVIUM_OCTEON
992 select EXPORT_UASM if OCTEON_WDT = m
994 Hardware driver for OCTEON's on chip watchdog timer.
995 Enables the watchdog for all cores running Linux. It
996 installs a NMI handler and pokes the watchdog based on an
997 interrupt. On first expiration of the watchdog, the
998 interrupt handler pokes it. The second expiration causes an
999 NMI that prints a message. The third expiration causes a
1002 When userspace has /dev/watchdog open, no poking is done
1003 from the first interrupt, it is then only poked when the
1007 tristate "Broadcom BCM63xx hardware watchdog"
1010 Watchdog driver for the built in watchdog hardware in Broadcom
1013 To compile this driver as a loadable module, choose M here.
1014 The module will be called bcm63xx_wdt.
1017 tristate "Lantiq SoC watchdog"
1020 Hardware driver for the Lantiq SoC Watchdog Timer.
1022 # PARISC Architecture
1024 # POWERPC Architecture
1027 tristate "GE Watchdog Timer"
1028 depends on GEF_SBC610 || GEF_SBC310 || GEF_PPC9A
1030 Watchdog timer found in a number of GE single board computers.
1033 bool "MPC52xx Watchdog Timer"
1034 depends on PPC_MPC52xx
1036 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1039 tristate "MPC8xxx Platform Watchdog Timer"
1040 depends on PPC_8xx || PPC_83xx || PPC_86xx
1042 This driver is for a SoC level watchdog that exists on some
1043 Freescale PowerPC processors. So far this driver supports:
1048 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1051 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1055 tristate "PIKA FPGA Watchdog"
1059 This enables the watchdog in the PIKA FPGA. Currently used on
1063 tristate "PowerPC Book-E Watchdog Timer"
1064 depends on BOOKE || 4xx
1066 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1067 MPC85xx SOCs and the IBM PowerPC 440.
1069 Please see Documentation/watchdog/watchdog-api.txt for
1072 config BOOKE_WDT_DEFAULT_TIMEOUT
1073 int "PowerPC Book-E Watchdog Timer Default Timeout"
1074 depends on BOOKE_WDT
1075 default 38 if FSL_BOOKE
1076 range 0 63 if FSL_BOOKE
1077 default 3 if !FSL_BOOKE
1078 range 0 3 if !FSL_BOOKE
1080 Select the default watchdog timer period to be used by the PowerPC
1081 Book-E watchdog driver. A watchdog "event" occurs when the bit
1082 position represented by this number transitions from zero to one.
1084 For Freescale Book-E processors, this is a number between 0 and 63.
1085 For other Book-E processors, this is a number between 0 and 3.
1087 The value can be overidden by the wdt_period command-line parameter.
1089 # PPC64 Architecture
1091 config WATCHDOG_RTAS
1092 tristate "RTAS watchdog"
1095 This driver adds watchdog support for the RTAS watchdog.
1097 To compile this driver as a module, choose M here. The module
1098 will be called wdrtas.
1103 tristate "z/VM Watchdog Timer"
1106 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1107 provide a virtual watchdog timer to their guest that cause a
1108 user define Control Program command to be executed after a
1111 To compile this driver as a module, choose M here. The module
1112 will be called vmwatchdog.
1114 # SUPERH (sh + sh64) Architecture
1117 tristate "SuperH Watchdog"
1118 depends on SUPERH && (CPU_SH3 || CPU_SH4)
1120 This driver adds watchdog support for the integrated watchdog in the
1121 SuperH processors. If you have one of these processors and wish
1122 to have watchdog support enabled, say Y, otherwise say N.
1124 As a side note, saying Y here will automatically boost HZ to 1000
1125 so that the timer has a chance to clear the overflow counter. On
1126 slower systems (such as the SH-2 and SH-3) this will likely yield
1127 some performance issues. As such, the WDT should be avoided here
1128 unless it is absolutely necessary.
1130 To compile this driver as a module, choose M here: the
1131 module will be called shwdt.
1133 # SPARC Architecture
1135 # SPARC64 Architecture
1137 config WATCHDOG_CP1XXX
1138 tristate "CP1XXX Hardware Watchdog support"
1139 depends on SPARC64 && PCI
1141 This is the driver for the hardware watchdog timers present on
1142 Sun Microsystems CompactPCI models CP1400 and CP1500.
1144 To compile this driver as a module, choose M here: the
1145 module will be called cpwatchdog.
1147 If you do not have a CompactPCI model CP1400 or CP1500, or
1148 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1149 you should say N to this option.
1152 tristate "RIO Hardware Watchdog support"
1153 depends on SPARC64 && PCI
1155 Say Y here to support the hardware watchdog capability on Sun RIO
1156 machines. The watchdog timeout period is normally one minute but
1157 can be changed with a boot-time parameter.
1159 # XTENSA Architecture
1164 tristate "Xen Watchdog support"
1167 Say Y here to support the hypervisor watchdog capability provided
1168 by Xen 4.0 and newer. The watchdog timeout period is normally one
1169 minute but can be changed with a boot-time parameter.
1172 # ISA-based Watchdog Cards
1175 comment "ISA-based Watchdog Cards"
1179 tristate "Berkshire Products ISA-PC Watchdog"
1182 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1183 This card simply watches your kernel to make sure it doesn't freeze,
1184 and if it does, it reboots your computer after a certain amount of
1185 time. This driver is like the WDT501 driver but for different
1186 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1187 watchdog cards can be ordered from <http://www.berkprod.com/>.
1189 To compile this driver as a module, choose M here: the
1190 module will be called pcwd.
1192 Most people will say N.
1195 tristate "Mixcom Watchdog"
1198 This is a driver for the Mixcom hardware watchdog cards. This
1199 watchdog simply watches your kernel to make sure it doesn't freeze,
1200 and if it does, it reboots your computer after a certain amount of
1203 To compile this driver as a module, choose M here: the
1204 module will be called mixcomwd.
1206 Most people will say N.
1209 tristate "WDT Watchdog timer"
1212 If you have a WDT500P or WDT501P watchdog board, say Y here,
1213 otherwise N. It is not possible to probe for this board, which means
1214 that you have to inform the kernel about the IO port and IRQ that
1215 is needed (you can do this via the io and irq parameters)
1217 To compile this driver as a module, choose M here: the
1218 module will be called wdt.
1221 # PCI-based Watchdog Cards
1224 comment "PCI-based Watchdog Cards"
1227 config PCIPCWATCHDOG
1228 tristate "Berkshire Products PCI-PC Watchdog"
1231 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1232 This card simply watches your kernel to make sure it doesn't freeze,
1233 and if it does, it reboots your computer after a certain amount of
1234 time. The card can also monitor the internal temperature of the PC.
1235 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1237 To compile this driver as a module, choose M here: the
1238 module will be called pcwd_pci.
1240 Most people will say N.
1243 tristate "PCI-WDT500/501 Watchdog timer"
1246 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1248 If you have a PCI-WDT501 watchdog board then you can enable the
1249 temperature sensor by setting the type parameter to 501.
1251 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1252 can do this via the tachometer parameter. Only do this if you have a
1253 fan tachometer actually set up.
1255 To compile this driver as a module, choose M here: the
1256 module will be called wdt_pci.
1259 # USB-based Watchdog Cards
1262 comment "USB-based Watchdog Cards"
1265 config USBPCWATCHDOG
1266 tristate "Berkshire Products USB-PC Watchdog"
1269 This is the driver for the Berkshire Products USB-PC Watchdog card.
1270 This card simply watches your kernel to make sure it doesn't freeze,
1271 and if it does, it reboots your computer after a certain amount of
1272 time. The card can also monitor the internal temperature of the PC.
1273 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1275 To compile this driver as a module, choose M here: the
1276 module will be called pcwd_usb.
1278 Most people will say N.