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.
76 config ARM_SP805_WATCHDOG
77 tristate "ARM SP805 Watchdog"
80 ARM Primecell SP805 Watchdog timer. This will reboot your system when
81 the timeout is reached.
83 config AT91RM9200_WATCHDOG
84 tristate "AT91RM9200 watchdog"
85 depends on ARCH_AT91RM9200
87 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
88 system when the timeout is reached.
90 config AT91SAM9X_WATCHDOG
91 tristate "AT91SAM9X / AT91CAP9 watchdog"
92 depends on ARCH_AT91 && !ARCH_AT91RM9200
94 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
95 reboot your system when the timeout is reached.
98 tristate "DC21285 watchdog"
101 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
102 here if you wish to use this. Alternatively say M to compile the
103 driver as a module, which will be called wdt285.
105 This driver does not work on all machines. In particular, early CATS
106 boards have hardware problems that will cause the machine to simply
107 lock up if the watchdog fires.
109 "If in doubt, leave it out" - say N.
112 tristate "NetWinder WB83C977 watchdog"
113 depends on FOOTBRIDGE && ARCH_NETWINDER
115 Say Y here to include support for the WB977 watchdog included in
116 NetWinder machines. Alternatively say M to compile the driver as
117 a module, which will be called wdt977.
119 Not sure? It's safe to say N.
121 config IXP2000_WATCHDOG
122 tristate "IXP2000 Watchdog"
123 depends on ARCH_IXP2000
125 Say Y here if to include support for the watchdog timer
126 in the Intel IXP2000(2400, 2800, 2850) network processors.
127 This driver can be built as a module by choosing M. The module
128 will be called ixp2000_wdt.
130 Say N if you are unsure.
132 config IXP4XX_WATCHDOG
133 tristate "IXP4xx Watchdog"
134 depends on ARCH_IXP4XX
136 Say Y here if to include support for the watchdog timer
137 in the Intel IXP4xx network processors. This driver can
138 be built as a module by choosing M. The module will
139 be called ixp4xx_wdt.
141 Note: The internal IXP4xx watchdog does a soft CPU reset
142 which doesn't reset any peripherals. There are circumstances
143 where the watchdog will fail to reset the board correctly
144 (e.g., if the boot ROM is in an unreadable state).
146 Say N if you are unsure.
148 config KS8695_WATCHDOG
149 tristate "KS8695 watchdog"
150 depends on ARCH_KS8695
152 Watchdog timer embedded into KS8695 processor. This will reboot your
153 system when the timeout is reached.
155 config HAVE_S3C2410_WATCHDOG
158 This will include watchdog timer support for Samsung SoCs. If
159 you want to include watchdog support for any machine, kindly
160 select this in the respective mach-XXXX/Kconfig file.
162 config S3C2410_WATCHDOG
163 tristate "S3C2410 Watchdog"
164 depends on ARCH_S3C2410 || HAVE_S3C2410_WATCHDOG
166 Watchdog timer block in the Samsung SoCs. This will reboot
167 the system when the timer expires with the watchdog enabled.
169 The driver is limited by the speed of the system's PCLK
170 signal, so with reasonably fast systems (PCLK around 50-66MHz)
171 then watchdog intervals of over approximately 20seconds are
174 The driver can be built as a module by choosing M, and will
175 be called s3c2410_wdt
177 config SA1100_WATCHDOG
178 tristate "SA1100/PXA2xx watchdog"
179 depends on ARCH_SA1100 || ARCH_PXA
181 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
182 reboot your system when timeout is reached.
184 NOTE: once enabled, this timer cannot be disabled.
186 To compile this driver as a module, choose M here: the
187 module will be called sa1100_wdt.
190 tristate "Synopsys DesignWare watchdog"
191 depends on ARM && HAVE_CLK
193 Say Y here if to include support for the Synopsys DesignWare
194 watchdog timer found in many ARM chips.
195 To compile this driver as a module, choose M here: the
196 module will be called dw_wdt.
198 config MPCORE_WATCHDOG
199 tristate "MPcore watchdog"
200 depends on HAVE_ARM_TWD
202 Watchdog timer embedded into the MPcore system.
204 To compile this driver as a module, choose M here: the
205 module will be called mpcore_wdt.
207 config EP93XX_WATCHDOG
208 tristate "EP93xx Watchdog"
209 depends on ARCH_EP93XX
211 Say Y here if to include support for the watchdog timer
212 embedded in the Cirrus Logic EP93xx family of devices.
214 To compile this driver as a module, choose M here: the
215 module will be called ep93xx_wdt.
218 tristate "OMAP Watchdog"
219 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
221 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
222 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
224 config PNX4008_WATCHDOG
225 tristate "PNX4008 and LPC32XX Watchdog"
226 depends on ARCH_PNX4008 || ARCH_LPC32XX
228 Say Y here if to include support for the watchdog timer
229 in the PNX4008 or LPC32XX processor.
230 This driver can be built as a module by choosing M. The module
231 will be called pnx4008_wdt.
233 Say N if you are unsure.
236 tristate "IOP Watchdog"
238 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
240 Say Y here if to include support for the watchdog timer
241 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
242 be built as a module by choosing M. The module will
245 Note: The IOP13XX watchdog does an Internal Bus Reset which will
246 affect both cores and the peripherals of the IOP. The ATU-X
247 and/or ATUe configuration registers will remain intact, but if
248 operating as an Root Complex and/or Central Resource, the PCI-X
249 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
251 config DAVINCI_WATCHDOG
252 tristate "DaVinci watchdog"
253 depends on ARCH_DAVINCI
255 Say Y here if to include support for the watchdog timer
256 in the DaVinci DM644x/DM646x processors.
257 To compile this driver as a module, choose M here: the
258 module will be called davinci_wdt.
260 NOTE: once enabled, this timer cannot be disabled.
261 Say N if you are unsure.
263 config ORION_WATCHDOG
264 tristate "Orion watchdog"
265 depends on ARCH_ORION5X || ARCH_KIRKWOOD
267 Say Y here if to include support for the watchdog timer
268 in the Marvell Orion5x and Kirkwood ARM SoCs.
269 To compile this driver as a module, choose M here: the
270 module will be called orion_wdt.
272 config COH901327_WATCHDOG
273 bool "ST-Ericsson COH 901 327 watchdog"
275 default y if MACH_U300
277 Say Y here to include Watchdog timer support for the
278 watchdog embedded into the ST-Ericsson U300 series platforms.
279 This watchdog is used to reset the system and thus cannot be
280 compiled as a module.
282 config TWL4030_WATCHDOG
283 tristate "TWL4030 Watchdog"
284 depends on TWL4030_CORE
286 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
287 watchdog timer support for TWL4030 chips.
289 config STMP3XXX_WATCHDOG
290 tristate "Freescale STMP3XXX watchdog"
291 depends on ARCH_STMP3XXX
293 Say Y here if to include support for the watchdog timer
294 for the Sigmatel STMP37XX/378X SoC.
295 To compile this driver as a module, choose M here: the
296 module will be called stmp3xxx_wdt.
298 config NUC900_WATCHDOG
299 tristate "Nuvoton NUC900 watchdog"
300 depends on ARCH_W90X900
302 Say Y here if to include support for the watchdog timer
303 for the Nuvoton NUC900 series SoCs.
304 To compile this driver as a module, choose M here: the
305 module will be called nuc900_wdt.
308 tristate "Avionic Design Xanthos watchdog"
309 depends on ARCH_PXA_ADX
311 Say Y here if you want support for the watchdog timer on Avionic
312 Design Xanthos boards.
314 config TS72XX_WATCHDOG
315 tristate "TS-72XX SBC Watchdog"
316 depends on MACH_TS72XX
318 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
319 watchdog timer implemented in a external CPLD chip. Say Y here
320 if you want to support for the watchdog timer on TS-72XX boards.
322 To compile this driver as a module, choose M here: the
323 module will be called ts72xx_wdt.
325 config MAX63XX_WATCHDOG
326 tristate "Max63xx watchdog"
327 depends on ARM && HAS_IOMEM
329 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
332 tristate "IMX2+ Watchdog"
333 depends on IMX_HAVE_PLATFORM_IMX2_WDT
335 This is the driver for the hardware watchdog
336 on the Freescale IMX2 and later processors.
337 If you have one of these processors and wish to have
338 watchdog support enabled, say Y, otherwise say N.
340 To compile this driver as a module, choose M here: the
341 module will be called imx2_wdt.
345 config AT32AP700X_WDT
346 tristate "AT32AP700x watchdog"
347 depends on CPU_AT32AP700X
349 Watchdog timer embedded into AT32AP700x devices. This will reboot
350 your system when the timeout is reached.
352 # BLACKFIN Architecture
355 tristate "Blackfin On-Chip Watchdog Timer"
358 If you say yes here you will get support for the Blackfin On-Chip
359 Watchdog Timer. If you have one of these processors and wish to
360 have watchdog support enabled, say Y, otherwise say N.
362 To compile this driver as a module, choose M here: the
363 module will be called bfin_wdt.
371 # X86 (i386 + ia64 + x86_64) Architecture
374 tristate "Acquire SBC Watchdog Timer"
377 This is the driver for the hardware watchdog on Single Board
378 Computers produced by Acquire Inc (and others). This watchdog
379 simply watches your kernel to make sure it doesn't freeze, and if
380 it does, it reboots your computer after a certain amount of time.
382 To compile this driver as a module, choose M here: the
383 module will be called acquirewdt.
385 Most people will say N.
388 tristate "Advantech SBC Watchdog Timer"
391 If you are configuring a Linux kernel for the Advantech single-board
392 computer, say `Y' here to support its built-in watchdog timer
393 feature. More information can be found at
394 <http://www.advantech.com.tw/products/>
397 tristate "ALi M1535 PMU Watchdog Timer"
398 depends on X86 && PCI
400 This is the driver for the hardware watchdog on the ALi M1535 PMU.
402 To compile this driver as a module, choose M here: the
403 module will be called alim1535_wdt.
405 Most people will say N.
408 tristate "ALi M7101 PMU Computer Watchdog"
411 This is the driver for the hardware watchdog on the ALi M7101 PMU
412 as used in the x86 Cobalt servers and also found in some
413 SPARC Netra servers too.
415 To compile this driver as a module, choose M here: the
416 module will be called alim7101_wdt.
418 Most people will say N.
421 tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
422 depends on X86 && EXPERIMENTAL
424 This is the driver for the hardware watchdog on the Fintek
425 F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
427 You can compile this driver directly into the kernel, or use
428 it as a module. The module will be called f71808e_wdt.
431 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
432 depends on X86 && PCI
434 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
435 (Total Cost of Ownership) timer is a watchdog timer that will reboot
436 the machine after its expiration. The expiration time can be
437 configured with the "heartbeat" parameter.
439 To compile this driver as a module, choose M here: the
440 module will be called sp5100_tco.
443 tristate "AMD Geode CS5535/CS5536 Watchdog"
444 depends on CS5535_MFGPT
446 This driver enables a watchdog capability built into the
447 CS5535/CS5536 companion chips for the AMD Geode GX and LX
448 processors. This watchdog watches your kernel to make sure
449 it doesn't freeze, and if it does, it reboots your computer after
450 a certain amount of time.
452 You can compile this driver directly into the kernel, or use
453 it as a module. The module will be called geodewdt.
456 tristate "AMD Elan SC520 processor Watchdog"
459 This is the driver for the hardware watchdog built in to the
460 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
461 This watchdog simply watches your kernel to make sure it doesn't
462 freeze, and if it does, it reboots your computer after a certain
465 You can compile this driver directly into the kernel, or use
466 it as a module. The module will be called sc520_wdt.
468 config SBC_FITPC2_WATCHDOG
469 tristate "Compulab SBC-FITPC2 watchdog"
472 This is the driver for the built-in watchdog timer on the fit-PC2,
473 fit-PC2i, CM-iAM single-board computers made by Compulab.
475 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
476 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
478 Entering BIOS setup temporary disables watchdog operation regardless to current state,
479 so system will not be restarted while user in BIOS setup.
481 Once watchdog was enabled the system will be restarted every
482 "Watchdog Timer Value" period, so to prevent it user can restart or
483 disable the watchdog.
485 To compile this driver as a module, choose M here: the
486 module will be called sbc_fitpc2_wdt.
488 Most people will say N.
491 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
494 Enable support for the watchdog timer on the Eurotech CPU-1220 and
495 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
496 information are at <http://www.eurotech.it/>.
499 tristate "IB700 SBC Watchdog Timer"
502 This is the driver for the hardware watchdog on the IB700 Single
503 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
504 simply watches your kernel to make sure it doesn't freeze, and if
505 it does, it reboots your computer after a certain amount of time.
507 This driver is like the WDT501 driver but for slightly different hardware.
509 To compile this driver as a module, choose M here: the
510 module will be called ib700wdt.
512 Most people will say N.
515 tristate "IBM Automatic Server Restart"
518 This is the driver for the IBM Automatic Server Restart watchdog
519 timer built-in into some eServer xSeries machines.
521 To compile this driver as a module, choose M here: the
522 module will be called ibmasr.
525 tristate "ICP Single Board Computer Watchdog Timer"
528 This is a driver for the hardware watchdog on the ICP Single
529 Board Computer. This driver is working on (at least) the following
530 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
532 To compile this driver as a module, choose M here: the
533 module will be called wafer5823wdt.
536 tristate "Intel 6300ESB Timer/Watchdog"
537 depends on X86 && PCI
539 Hardware driver for the watchdog timer built into the Intel
540 6300ESB controller hub.
542 To compile this driver as a module, choose M here: the
543 module will be called i6300esb.
545 config INTEL_SCU_WATCHDOG
546 bool "Intel SCU Watchdog for Mobile Platforms"
549 Hardware driver for the watchdog time built into the Intel SCU
550 for Intel Mobile Platforms.
552 To compile this driver as a module, choose M here.
555 tristate "Intel TCO Timer/Watchdog"
556 depends on (X86 || IA64) && PCI
558 Hardware driver for the intel TCO timer based watchdog devices.
559 These drivers are included in the Intel 82801 I/O Controller
560 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
563 The TCO (Total Cost of Ownership) timer is a watchdog timer
564 that will reboot the machine after its second expiration. The
565 expiration time can be configured with the "heartbeat" parameter.
567 On some motherboards the driver may fail to reset the chipset's
568 NO_REBOOT flag which prevents the watchdog from rebooting the
569 machine. If this is the case you will get a kernel message like
570 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
572 To compile this driver as a module, choose M here: the
573 module will be called iTCO_wdt.
575 config ITCO_VENDOR_SUPPORT
576 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
579 Add vendor specific support to the intel TCO timer based watchdog
580 devices. At this moment we only have additional support for some
581 SuperMicro Inc. motherboards.
584 tristate "IT8712F (Smart Guardian) Watchdog Timer"
587 This is the driver for the built-in watchdog timer on the IT8712F
588 Super I/0 chipset used on many motherboards.
590 If the driver does not work, then make sure that the game port in
593 To compile this driver as a module, choose M here: the
594 module will be called it8712f_wdt.
597 tristate "IT87 Watchdog Timer"
598 depends on X86 && EXPERIMENTAL
600 This is the driver for the hardware watchdog on the ITE IT8702,
601 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 Super I/O chips.
602 This watchdog simply watches your kernel to make sure it doesn't
603 freeze, and if it does, it reboots your computer after a certain
606 To compile this driver as a module, choose M here: the module will
610 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
611 depends on X86 && PCI
613 A software monitoring watchdog and NMI sourcing driver. This driver
614 will detect lockups and provide a stack trace. This is a driver that
615 will only load on an HP ProLiant system with a minimum of iLO2 support.
616 To compile this driver as a module, choose M here: the module will be
619 config HPWDT_NMI_DECODING
620 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
621 depends on HP_WATCHDOG
624 When an NMI occurs this feature will make the necessary BIOS calls to
625 log the cause of the NMI.
628 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
631 This is a driver for National Semiconductor PC87307/PC97307 hardware
632 watchdog cards as found on the SC1200. This watchdog is mainly used
633 for power management purposes and can be used to power down the device
634 during inactivity periods (includes interrupt activity monitoring).
636 To compile this driver as a module, choose M here: the
637 module will be called sc1200wdt.
639 Most people will say N.
642 tristate "National Semiconductor SCx200 Watchdog"
643 depends on SCx200 && PCI
645 Enable the built-in watchdog timer support on the National
646 Semiconductor SCx200 processors.
648 If compiled as a module, it will be called scx200_wdt.
651 tristate "NS PC87413 watchdog"
654 This is the driver for the hardware watchdog on the PC87413 chipset
655 This watchdog simply watches your kernel to make sure it doesn't
656 freeze, and if it does, it reboots your computer after a certain
659 To compile this driver as a module, choose M here: the
660 module will be called pc87413_wdt.
662 Most people will say N.
665 tristate "nVidia TCO Timer/Watchdog"
666 depends on X86 && PCI
668 Hardware driver for the TCO timer built into the nVidia Hub family
669 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
670 watchdog timer that will reboot the machine after its second
671 expiration. The expiration time can be configured with the
672 "heartbeat" parameter.
674 On some motherboards the driver may fail to reset the chipset's
675 NO_REBOOT flag which prevents the watchdog from rebooting the
676 machine. If this is the case you will get a kernel message like
677 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
679 To compile this driver as a module, choose M here: the
680 module will be called nv_tco.
683 tristate "RDC R-321x SoC watchdog"
684 depends on X86_RDC321X
686 This is the driver for the built in hardware watchdog
687 in the RDC R-321x SoC.
689 To compile this driver as a module, choose M here: the
690 module will be called rdc321x_wdt.
693 tristate "SBC-60XX Watchdog Timer"
696 This driver can be used with the watchdog timer found on some
697 single board computers, namely the 6010 PII based computer.
698 It may well work with other cards. It reads port 0x443 to enable
699 and re-set the watchdog timer, and reads port 0x45 to disable
700 the watchdog. If you have a card that behave in similar ways,
701 you can probably make this driver work with your card as well.
703 You can compile this driver directly into the kernel, or use
704 it as a module. The module will be called sbc60xxwdt.
707 tristate "SBC8360 Watchdog Timer"
711 This is the driver for the hardware watchdog on the SBC8360 Single
712 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
714 To compile this driver as a module, choose M here: the
715 module will be called sbc8360.
717 Most people will say N.
720 tristate "SBC Nano 7240 Watchdog Timer"
723 This is the driver for the hardware watchdog found on the IEI
724 single board computers EPIC Nano 7240 (and likely others). This
725 watchdog simply watches your kernel to make sure it doesn't freeze,
726 and if it does, it reboots your computer after a certain amount of
729 To compile this driver as a module, choose M here: the
730 module will be called sbc7240_wdt.
733 tristate "SMA CPU5 Watchdog"
737 To compile this driver as a module, choose M here: the
738 module will be called cpu5wdt.
740 config SMSC_SCH311X_WDT
741 tristate "SMSC SCH311X Watchdog Timer"
744 This is the driver for the hardware watchdog timer on the
745 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
746 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
749 To compile this driver as a module, choose M here: the
750 module will be called sch311x_wdt.
752 config SMSC37B787_WDT
753 tristate "Winbond SMsC37B787 Watchdog Timer"
756 This is the driver for the hardware watchdog component on the
757 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
758 from Vision Systems and maybe others.
760 This watchdog simply watches your kernel to make sure it doesn't
761 freeze, and if it does, it reboots your computer after a certain
764 Usually a userspace daemon will notify the kernel WDT driver that
765 userspace is still alive, at regular intervals.
767 To compile this driver as a module, choose M here: the
768 module will be called smsc37b787_wdt.
770 Most people will say N.
773 tristate "W83627HF/W83627DHG Watchdog Timer"
776 This is the driver for the hardware watchdog on the W83627HF chipset
777 as used in Advantech PC-9578 and Tyan S2721-533 motherboards
778 (and likely others). The driver also supports the W83627DHG chip.
779 This watchdog simply watches your kernel to make sure it doesn't
780 freeze, and if it does, it reboots your computer after a certain
783 To compile this driver as a module, choose M here: the
784 module will be called w83627hf_wdt.
786 Most people will say N.
789 tristate "W83697HF/W83697HG Watchdog Timer"
792 This is the driver for the hardware watchdog on the W83697HF/HG
793 chipset as used in Dedibox/VIA motherboards (and likely others).
794 This watchdog simply watches your kernel to make sure it doesn't
795 freeze, and if it does, it reboots your computer after a certain
798 To compile this driver as a module, choose M here: the
799 module will be called w83697hf_wdt.
801 Most people will say N.
804 tristate "W83697UG/W83697UF Watchdog Timer"
807 This is the driver for the hardware watchdog on the W83697UG/UF
808 chipset as used in MSI Fuzzy CX700 VIA motherboards (and likely others).
809 This watchdog simply watches your kernel to make sure it doesn't
810 freeze, and if it does, it reboots your computer after a certain
813 To compile this driver as a module, choose M here: the
814 module will be called w83697ug_wdt.
816 Most people will say N.
819 tristate "W83877F (EMACS) Watchdog Timer"
822 This is the driver for the hardware watchdog on the W83877F chipset
823 as used in EMACS PC-104 motherboards (and likely others). This
824 watchdog simply watches your kernel to make sure it doesn't freeze,
825 and if it does, it reboots your computer after a certain amount of
828 To compile this driver as a module, choose M here: the
829 module will be called w83877f_wdt.
831 Most people will say N.
834 tristate "W83977F (PCM-5335) Watchdog Timer"
837 This is the driver for the hardware watchdog on the W83977F I/O chip
838 as used in AAEON's PCM-5335 SBC (and likely others). This
839 watchdog simply watches your kernel to make sure it doesn't freeze,
840 and if it does, it reboots your computer after a certain amount of
843 To compile this driver as a module, choose M here: the
844 module will be called w83977f_wdt.
847 tristate "ZF MachZ Watchdog"
850 If you are using a ZF Micro MachZ processor, say Y here, otherwise
851 N. This is the driver for the watchdog timer built-in on that
852 processor using ZF-Logic interface. This watchdog simply watches
853 your kernel to make sure it doesn't freeze, and if it does, it
854 reboots your computer after a certain amount of time.
856 To compile this driver as a module, choose M here: the
857 module will be called machzwd.
859 config SBC_EPX_C3_WATCHDOG
860 tristate "Winsystems SBC EPX-C3 watchdog"
863 This is the driver for the built-in watchdog timer on the EPX-C3
864 Single-board computer made by Winsystems, Inc.
866 *Note*: This hardware watchdog is not probeable and thus there
867 is no way to know if writing to its IO address will corrupt
868 your system or have any real effect. The only way to be sure
869 that this driver does what you want is to make sure you
870 are running it on an EPX-C3 from Winsystems with the watchdog
871 timer at IO address 0x1ee and 0x1ef. It will write to both those
872 IO ports. Basically, the assumption is made that if you compile
873 this driver into your kernel and/or load it as a module, that you
874 know what you are doing and that you are in fact running on an
877 To compile this driver as a module, choose M here: the
878 module will be called sbc_epx_c3.
884 config M54xx_WATCHDOG
885 tristate "MCF54xx watchdog support"
888 To compile this driver as a module, choose M here: the
889 module will be called m54xx_wdt.
891 # MicroBlaze Architecture
893 config XILINX_WATCHDOG
894 tristate "Xilinx Watchdog timer"
895 depends on MICROBLAZE
897 Watchdog driver for the xps_timebase_wdt ip core.
899 IMPORTANT: The xps_timebase_wdt parent must have the property
900 "clock-frequency" at device tree.
902 To compile this driver as a module, choose M here: the
903 module will be called of_xilinx_wdt.
908 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
911 Hardware driver for the built-in watchdog timer on the Atheros
912 AR71XX/AR724X/AR913X SoCs.
915 tristate "Broadcom BCM47xx Watchdog Timer"
918 Hardware driver for the Broadcom BCM47xx Watchog Timer.
921 tristate "IDT RC32434 SoC Watchdog Timer"
922 depends on MIKROTIK_RB532
924 Hardware driver for the IDT RC32434 SoC built-in
927 To compile this driver as a module, choose M here: the
928 module will be called rc32434_wdt.
931 tristate "Indy/I2 Hardware Watchdog"
932 depends on SGI_HAS_INDYDOG
934 Hardware driver for the Indy's/I2's watchdog. This is a
935 watchdog timer that will reboot the machine after a 60 second
936 timer expired and no process has written to /dev/watchdog during
940 tristate "Ingenic jz4740 SoC hardware watchdog"
941 depends on MACH_JZ4740
943 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
946 tristate "MTX-1 Hardware Watchdog"
949 Hardware driver for the MTX-1 boards. This is a watchdog timer that
950 will reboot the machine after a 100 seconds timer expired.
953 tristate "PNX833x Hardware Watchdog"
954 depends on SOC_PNX8335
956 Hardware driver for the PNX833x's watchdog. This is a
957 watchdog timer that will reboot the machine after a programmable
958 timer has expired and no process has written to /dev/watchdog during
962 tristate "Sibyte SoC hardware watchdog"
965 Watchdog driver for the built in watchdog hardware in Sibyte
966 SoC processors. There are apparently two watchdog timers
967 on such processors; this driver supports only the first one,
968 because currently Linux only supports exporting one watchdog
971 To compile this driver as a loadable module, choose M here.
972 The module will be called sb_wdog.
975 tristate "TI AR7 Watchdog Timer"
978 Hardware driver for the TI AR7 Watchdog Timer.
981 tristate "Toshiba TXx9 Watchdog Timer"
982 depends on CPU_TX39XX || CPU_TX49XX
984 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
987 tristate "Cavium OCTEON SOC family Watchdog Timer"
988 depends on CPU_CAVIUM_OCTEON
990 select EXPORT_UASM if OCTEON_WDT = m
992 Hardware driver for OCTEON's on chip watchdog timer.
993 Enables the watchdog for all cores running Linux. It
994 installs a NMI handler and pokes the watchdog based on an
995 interrupt. On first expiration of the watchdog, the
996 interrupt handler pokes it. The second expiration causes an
997 NMI that prints a message. The third expiration causes a
1000 When userspace has /dev/watchdog open, no poking is done
1001 from the first interrupt, it is then only poked when the
1005 tristate "Broadcom BCM63xx hardware watchdog"
1008 Watchdog driver for the built in watchdog hardware in Broadcom
1011 To compile this driver as a loadable module, choose M here.
1012 The module will be called bcm63xx_wdt.
1015 tristate "Lantiq SoC watchdog"
1018 Hardware driver for the Lantiq SoC Watchdog Timer.
1020 # PARISC Architecture
1022 # POWERPC Architecture
1025 tristate "GE Watchdog Timer"
1026 depends on GEF_SBC610 || GEF_SBC310 || GEF_PPC9A
1028 Watchdog timer found in a number of GE single board computers.
1031 bool "MPC52xx Watchdog Timer"
1032 depends on PPC_MPC52xx
1034 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1037 tristate "MPC8xxx Platform Watchdog Timer"
1038 depends on PPC_8xx || PPC_83xx || PPC_86xx
1040 This driver is for a SoC level watchdog that exists on some
1041 Freescale PowerPC processors. So far this driver supports:
1046 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1049 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1053 tristate "PIKA FPGA Watchdog"
1057 This enables the watchdog in the PIKA FPGA. Currently used on
1061 tristate "PowerPC Book-E Watchdog Timer"
1062 depends on BOOKE || 4xx
1064 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1065 MPC85xx SOCs and the IBM PowerPC 440.
1067 Please see Documentation/watchdog/watchdog-api.txt for
1070 config BOOKE_WDT_DEFAULT_TIMEOUT
1071 int "PowerPC Book-E Watchdog Timer Default Timeout"
1072 depends on BOOKE_WDT
1073 default 38 if FSL_BOOKE
1074 range 0 63 if FSL_BOOKE
1075 default 3 if !FSL_BOOKE
1076 range 0 3 if !FSL_BOOKE
1078 Select the default watchdog timer period to be used by the PowerPC
1079 Book-E watchdog driver. A watchdog "event" occurs when the bit
1080 position represented by this number transitions from zero to one.
1082 For Freescale Book-E processors, this is a number between 0 and 63.
1083 For other Book-E processors, this is a number between 0 and 3.
1085 The value can be overidden by the wdt_period command-line parameter.
1087 # PPC64 Architecture
1089 config WATCHDOG_RTAS
1090 tristate "RTAS watchdog"
1093 This driver adds watchdog support for the RTAS watchdog.
1095 To compile this driver as a module, choose M here. The module
1096 will be called wdrtas.
1101 tristate "z/VM Watchdog Timer"
1104 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1105 provide a virtual watchdog timer to their guest that cause a
1106 user define Control Program command to be executed after a
1109 To compile this driver as a module, choose M here. The module
1110 will be called vmwatchdog.
1112 # SUPERH (sh + sh64) Architecture
1115 tristate "SuperH Watchdog"
1116 depends on SUPERH && (CPU_SH3 || CPU_SH4)
1118 This driver adds watchdog support for the integrated watchdog in the
1119 SuperH processors. If you have one of these processors and wish
1120 to have watchdog support enabled, say Y, otherwise say N.
1122 As a side note, saying Y here will automatically boost HZ to 1000
1123 so that the timer has a chance to clear the overflow counter. On
1124 slower systems (such as the SH-2 and SH-3) this will likely yield
1125 some performance issues. As such, the WDT should be avoided here
1126 unless it is absolutely necessary.
1128 To compile this driver as a module, choose M here: the
1129 module will be called shwdt.
1131 # SPARC Architecture
1133 # SPARC64 Architecture
1135 config WATCHDOG_CP1XXX
1136 tristate "CP1XXX Hardware Watchdog support"
1137 depends on SPARC64 && PCI
1139 This is the driver for the hardware watchdog timers present on
1140 Sun Microsystems CompactPCI models CP1400 and CP1500.
1142 To compile this driver as a module, choose M here: the
1143 module will be called cpwatchdog.
1145 If you do not have a CompactPCI model CP1400 or CP1500, or
1146 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1147 you should say N to this option.
1150 tristate "RIO Hardware Watchdog support"
1151 depends on SPARC64 && PCI
1153 Say Y here to support the hardware watchdog capability on Sun RIO
1154 machines. The watchdog timeout period is normally one minute but
1155 can be changed with a boot-time parameter.
1157 # XTENSA Architecture
1162 tristate "Xen Watchdog support"
1165 Say Y here to support the hypervisor watchdog capability provided
1166 by Xen 4.0 and newer. The watchdog timeout period is normally one
1167 minute but can be changed with a boot-time parameter.
1170 # ISA-based Watchdog Cards
1173 comment "ISA-based Watchdog Cards"
1177 tristate "Berkshire Products ISA-PC Watchdog"
1180 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1181 This card simply watches your kernel to make sure it doesn't freeze,
1182 and if it does, it reboots your computer after a certain amount of
1183 time. This driver is like the WDT501 driver but for different
1184 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1185 watchdog cards can be ordered from <http://www.berkprod.com/>.
1187 To compile this driver as a module, choose M here: the
1188 module will be called pcwd.
1190 Most people will say N.
1193 tristate "Mixcom Watchdog"
1196 This is a driver for the Mixcom hardware watchdog cards. This
1197 watchdog simply watches your kernel to make sure it doesn't freeze,
1198 and if it does, it reboots your computer after a certain amount of
1201 To compile this driver as a module, choose M here: the
1202 module will be called mixcomwd.
1204 Most people will say N.
1207 tristate "WDT Watchdog timer"
1210 If you have a WDT500P or WDT501P watchdog board, say Y here,
1211 otherwise N. It is not possible to probe for this board, which means
1212 that you have to inform the kernel about the IO port and IRQ that
1213 is needed (you can do this via the io and irq parameters)
1215 To compile this driver as a module, choose M here: the
1216 module will be called wdt.
1219 # PCI-based Watchdog Cards
1222 comment "PCI-based Watchdog Cards"
1225 config PCIPCWATCHDOG
1226 tristate "Berkshire Products PCI-PC Watchdog"
1229 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1230 This card simply watches your kernel to make sure it doesn't freeze,
1231 and if it does, it reboots your computer after a certain amount of
1232 time. The card can also monitor the internal temperature of the PC.
1233 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1235 To compile this driver as a module, choose M here: the
1236 module will be called pcwd_pci.
1238 Most people will say N.
1241 tristate "PCI-WDT500/501 Watchdog timer"
1244 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1246 If you have a PCI-WDT501 watchdog board then you can enable the
1247 temperature sensor by setting the type parameter to 501.
1249 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1250 can do this via the tachometer parameter. Only do this if you have a
1251 fan tachometer actually set up.
1253 To compile this driver as a module, choose M here: the
1254 module will be called wdt_pci.
1257 # USB-based Watchdog Cards
1260 comment "USB-based Watchdog Cards"
1263 config USBPCWATCHDOG
1264 tristate "Berkshire Products USB-PC Watchdog"
1267 This is the driver for the Berkshire Products USB-PC Watchdog card.
1268 This card simply watches your kernel to make sure it doesn't freeze,
1269 and if it does, it reboots your computer after a certain amount of
1270 time. The card can also monitor the internal temperature of the PC.
1271 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1273 To compile this driver as a module, choose M here: the
1274 module will be called pcwd_usb.
1276 Most people will say N.