2 # Watchdog device configuration
6 bool "Watchdog Timer Support"
8 If you say Y here (and to one of the following options) and create a
9 character special file /dev/watchdog with major number 10 and minor
10 number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:
11 subsequently opening the file and then failing to write to it for
12 longer than 1 minute will result in rebooting the machine. This
13 could be useful for a networked machine that needs to come back
14 on-line as fast as possible after a lock-up. There's both a watchdog
15 implementation entirely in software (which can sometimes fail to
16 reboot the machine) and a driver for hardware watchdog boards, which
17 are more robust and can also keep track of the temperature inside
18 your computer. For details, read
19 <file:Documentation/watchdog/watchdog-api.txt> in the kernel source.
21 The watchdog is usually used together with the watchdog daemon
22 which is available from
23 <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can
24 also monitor NFS connections and can reboot the machine when the process
32 bool "WatchDog Timer Driver Core"
34 Say Y here if you want to use the new watchdog timer driver core.
35 This driver provides a framework for all watchdog timer drivers
36 and gives them the /dev/watchdog interface (and later also the
39 config WATCHDOG_NOWAYOUT
40 bool "Disable watchdog shutdown on close"
42 The default watchdog behaviour (which you get if you say N here) is
43 to stop the timer if the process managing it closes the file
44 /dev/watchdog. It's always remotely possible that this process might
45 get killed. If you say Y here, the watchdog cannot be stopped once
49 # General Watchdog drivers
52 comment "Watchdog Device Drivers"
54 # Architecture Independent
57 tristate "Software watchdog"
60 A software monitoring watchdog. This will fail to reboot your system
61 from some situations that the hardware watchdog will recover
62 from. Equally it's a lot cheaper to install.
64 To compile this driver as a module, choose M here: the
65 module will be called softdog.
67 config DA9052_WATCHDOG
68 tristate "Dialog DA9052 Watchdog"
69 depends on PMIC_DA9052
72 Support for the watchdog in the DA9052 PMIC. Watchdog trigger
75 Say Y here to include support for the DA9052 watchdog.
76 Alternatively say M to compile the driver as a module,
77 which will be called da9052_wdt.
79 config DA9055_WATCHDOG
80 tristate "Dialog Semiconductor DA9055 Watchdog"
84 If you say yes here you get support for watchdog on the Dialog
85 Semiconductor DA9055 PMIC.
87 This driver can also be built as a module. If so, the module
88 will be called da9055_wdt.
90 config WM831X_WATCHDOG
91 tristate "WM831x watchdog"
95 Support for the watchdog in the WM831x AudioPlus PMICs. When
96 the watchdog triggers the system will be reset.
98 config WM8350_WATCHDOG
99 tristate "WM8350 watchdog"
100 depends on MFD_WM8350
103 Support for the watchdog in the WM8350 AudioPlus PMIC. When
104 the watchdog triggers the system will be reset.
110 config ARM_SP805_WATCHDOG
111 tristate "ARM SP805 Watchdog"
112 depends on ARM && ARM_AMBA
115 ARM Primecell SP805 Watchdog timer. This will reboot your system when
116 the timeout is reached.
118 config AT91RM9200_WATCHDOG
119 tristate "AT91RM9200 watchdog"
120 depends on ARCH_AT91RM9200
122 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
123 system when the timeout is reached.
125 config AT91SAM9X_WATCHDOG
126 tristate "AT91SAM9X / AT91CAP9 watchdog"
127 depends on ARCH_AT91 && !ARCH_AT91RM9200
130 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
131 reboot your system when the timeout is reached.
133 config 21285_WATCHDOG
134 tristate "DC21285 watchdog"
135 depends on FOOTBRIDGE
137 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
138 here if you wish to use this. Alternatively say M to compile the
139 driver as a module, which will be called wdt285.
141 This driver does not work on all machines. In particular, early CATS
142 boards have hardware problems that will cause the machine to simply
143 lock up if the watchdog fires.
145 "If in doubt, leave it out" - say N.
148 tristate "NetWinder WB83C977 watchdog"
149 depends on FOOTBRIDGE && ARCH_NETWINDER
151 Say Y here to include support for the WB977 watchdog included in
152 NetWinder machines. Alternatively say M to compile the driver as
153 a module, which will be called wdt977.
155 Not sure? It's safe to say N.
157 config IXP4XX_WATCHDOG
158 tristate "IXP4xx Watchdog"
159 depends on ARCH_IXP4XX
161 Say Y here if to include support for the watchdog timer
162 in the Intel IXP4xx network processors. This driver can
163 be built as a module by choosing M. The module will
164 be called ixp4xx_wdt.
166 Note: The internal IXP4xx watchdog does a soft CPU reset
167 which doesn't reset any peripherals. There are circumstances
168 where the watchdog will fail to reset the board correctly
169 (e.g., if the boot ROM is in an unreadable state).
171 Say N if you are unsure.
173 config KS8695_WATCHDOG
174 tristate "KS8695 watchdog"
175 depends on ARCH_KS8695
177 Watchdog timer embedded into KS8695 processor. This will reboot your
178 system when the timeout is reached.
180 config HAVE_S3C2410_WATCHDOG
183 This will include watchdog timer support for Samsung SoCs. If
184 you want to include watchdog support for any machine, kindly
185 select this in the respective mach-XXXX/Kconfig file.
187 config S3C2410_WATCHDOG
188 tristate "S3C2410 Watchdog"
189 depends on HAVE_S3C2410_WATCHDOG
192 Watchdog timer block in the Samsung SoCs. This will reboot
193 the system when the timer expires with the watchdog enabled.
195 The driver is limited by the speed of the system's PCLK
196 signal, so with reasonably fast systems (PCLK around 50-66MHz)
197 then watchdog intervals of over approximately 20seconds are
200 The driver can be built as a module by choosing M, and will
201 be called s3c2410_wdt
203 config SA1100_WATCHDOG
204 tristate "SA1100/PXA2xx watchdog"
205 depends on ARCH_SA1100 || ARCH_PXA
207 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
208 reboot your system when timeout is reached.
210 NOTE: once enabled, this timer cannot be disabled.
212 To compile this driver as a module, choose M here: the
213 module will be called sa1100_wdt.
216 tristate "Synopsys DesignWare watchdog"
217 depends on ARM && HAVE_CLK
219 Say Y here if to include support for the Synopsys DesignWare
220 watchdog timer found in many ARM chips.
221 To compile this driver as a module, choose M here: the
222 module will be called dw_wdt.
224 config EP93XX_WATCHDOG
225 tristate "EP93xx Watchdog"
226 depends on ARCH_EP93XX
229 Say Y here if to include support for the watchdog timer
230 embedded in the Cirrus Logic EP93xx family of devices.
232 To compile this driver as a module, choose M here: the
233 module will be called ep93xx_wdt.
236 tristate "OMAP Watchdog"
237 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
240 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
241 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
243 config PNX4008_WATCHDOG
244 tristate "LPC32XX Watchdog"
245 depends on ARCH_LPC32XX
248 Say Y here if to include support for the watchdog timer
249 in the LPC32XX processor.
250 This driver can be built as a module by choosing M. The module
251 will be called pnx4008_wdt.
253 Say N if you are unsure.
256 tristate "IOP Watchdog"
258 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
260 Say Y here if to include support for the watchdog timer
261 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
262 be built as a module by choosing M. The module will
265 Note: The IOP13XX watchdog does an Internal Bus Reset which will
266 affect both cores and the peripherals of the IOP. The ATU-X
267 and/or ATUe configuration registers will remain intact, but if
268 operating as an Root Complex and/or Central Resource, the PCI-X
269 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
271 config DAVINCI_WATCHDOG
272 tristate "DaVinci watchdog"
273 depends on ARCH_DAVINCI
275 Say Y here if to include support for the watchdog timer
276 in the DaVinci DM644x/DM646x processors.
277 To compile this driver as a module, choose M here: the
278 module will be called davinci_wdt.
280 NOTE: once enabled, this timer cannot be disabled.
281 Say N if you are unsure.
283 config ORION_WATCHDOG
284 tristate "Orion watchdog"
285 depends on ARCH_ORION5X || ARCH_KIRKWOOD || ARCH_DOVE
288 Say Y here if to include support for the watchdog timer
289 in the Marvell Orion5x and Kirkwood ARM SoCs.
290 To compile this driver as a module, choose M here: the
291 module will be called orion_wdt.
293 config SUNXI_WATCHDOG
294 tristate "Allwinner SoCs watchdog support"
295 depends on ARCH_SUNXI
298 Say Y here to include support for the watchdog timer
300 To compile this driver as a module, choose M here: the
301 module will be called sunxi_wdt.
303 config COH901327_WATCHDOG
304 bool "ST-Ericsson COH 901 327 watchdog"
306 default y if MACH_U300
309 Say Y here to include Watchdog timer support for the
310 watchdog embedded into the ST-Ericsson U300 series platforms.
311 This watchdog is used to reset the system and thus cannot be
312 compiled as a module.
314 config TWL4030_WATCHDOG
315 tristate "TWL4030 Watchdog"
316 depends on TWL4030_CORE
319 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
320 watchdog timer support for TWL4030 chips.
322 config STMP3XXX_RTC_WATCHDOG
323 tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
324 depends on RTC_DRV_STMP
327 Say Y here to include support for the watchdog timer inside
328 the RTC for the STMP37XX/378X or i.MX23/28 SoC.
329 To compile this driver as a module, choose M here: the
330 module will be called stmp3xxx_rtc_wdt.
332 config NUC900_WATCHDOG
333 tristate "Nuvoton NUC900 watchdog"
334 depends on ARCH_W90X900
336 Say Y here if to include support for the watchdog timer
337 for the Nuvoton NUC900 series SoCs.
338 To compile this driver as a module, choose M here: the
339 module will be called nuc900_wdt.
341 config TS72XX_WATCHDOG
342 tristate "TS-72XX SBC Watchdog"
343 depends on MACH_TS72XX
345 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
346 watchdog timer implemented in a external CPLD chip. Say Y here
347 if you want to support for the watchdog timer on TS-72XX boards.
349 To compile this driver as a module, choose M here: the
350 module will be called ts72xx_wdt.
352 config MAX63XX_WATCHDOG
353 tristate "Max63xx watchdog"
354 depends on ARM && HAS_IOMEM
357 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
360 tristate "IMX2+ Watchdog"
363 This is the driver for the hardware watchdog
364 on the Freescale IMX2 and later processors.
365 If you have one of these processors and wish to have
366 watchdog support enabled, say Y, otherwise say N.
368 To compile this driver as a module, choose M here: the
369 module will be called imx2_wdt.
371 config UX500_WATCHDOG
372 tristate "ST-Ericsson Ux500 watchdog"
373 depends on MFD_DB8500_PRCMU
377 Say Y here to include Watchdog timer support for the watchdog
378 existing in the prcmu of ST-Ericsson Ux500 series platforms.
380 To compile this driver as a module, choose M here: the
381 module will be called ux500_wdt.
384 tristate "Retu watchdog"
388 Retu watchdog driver for Nokia Internet Tablets (770, N800,
389 N810). At least on N800 the watchdog cannot be disabled, so
390 this driver is essential and you should enable it.
392 To compile this driver as a module, choose M here: the
393 module will be called retu_wdt.
396 tristate "MOXART watchdog"
397 depends on ARCH_MOXART
399 Say Y here to include Watchdog timer support for the watchdog
400 existing on the MOXA ART SoC series platforms.
402 To compile this driver as a module, choose M here: the
403 module will be called moxart_wdt.
405 config SIRFSOC_WATCHDOG
406 tristate "SiRFSOC watchdog"
411 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
412 the watchdog triggers the system will be reset.
416 config AT32AP700X_WDT
417 tristate "AT32AP700x watchdog"
418 depends on CPU_AT32AP700X
420 Watchdog timer embedded into AT32AP700x devices. This will reboot
421 your system when the timeout is reached.
423 # BLACKFIN Architecture
426 tristate "Blackfin On-Chip Watchdog Timer"
429 If you say yes here you will get support for the Blackfin On-Chip
430 Watchdog Timer. If you have one of these processors and wish to
431 have watchdog support enabled, say Y, otherwise say N.
433 To compile this driver as a module, choose M here: the
434 module will be called bfin_wdt.
440 # X86 (i386 + ia64 + x86_64) Architecture
443 tristate "Acquire SBC Watchdog Timer"
446 This is the driver for the hardware watchdog on Single Board
447 Computers produced by Acquire Inc (and others). This watchdog
448 simply watches your kernel to make sure it doesn't freeze, and if
449 it does, it reboots your computer after a certain amount of time.
451 To compile this driver as a module, choose M here: the
452 module will be called acquirewdt.
454 Most people will say N.
457 tristate "Advantech SBC Watchdog Timer"
460 If you are configuring a Linux kernel for the Advantech single-board
461 computer, say `Y' here to support its built-in watchdog timer
462 feature. More information can be found at
463 <http://www.advantech.com.tw/products/>
466 tristate "ALi M1535 PMU Watchdog Timer"
467 depends on X86 && PCI
469 This is the driver for the hardware watchdog on the ALi M1535 PMU.
471 To compile this driver as a module, choose M here: the
472 module will be called alim1535_wdt.
474 Most people will say N.
477 tristate "ALi M7101 PMU Computer Watchdog"
480 This is the driver for the hardware watchdog on the ALi M7101 PMU
481 as used in the x86 Cobalt servers and also found in some
482 SPARC Netra servers too.
484 To compile this driver as a module, choose M here: the
485 module will be called alim7101_wdt.
487 Most people will say N.
490 tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
493 This is the driver for the hardware watchdog on the Fintek
494 F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
496 You can compile this driver directly into the kernel, or use
497 it as a module. The module will be called f71808e_wdt.
500 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
501 depends on X86 && PCI
503 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
504 (Total Cost of Ownership) timer is a watchdog timer that will reboot
505 the machine after its expiration. The expiration time can be
506 configured with the "heartbeat" parameter.
508 To compile this driver as a module, choose M here: the
509 module will be called sp5100_tco.
512 tristate "AMD Geode CS5535/CS5536 Watchdog"
513 depends on CS5535_MFGPT
515 This driver enables a watchdog capability built into the
516 CS5535/CS5536 companion chips for the AMD Geode GX and LX
517 processors. This watchdog watches your kernel to make sure
518 it doesn't freeze, and if it does, it reboots your computer after
519 a certain amount of time.
521 You can compile this driver directly into the kernel, or use
522 it as a module. The module will be called geodewdt.
525 tristate "AMD Elan SC520 processor Watchdog"
528 This is the driver for the hardware watchdog built in to the
529 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
530 This watchdog simply watches your kernel to make sure it doesn't
531 freeze, and if it does, it reboots your computer after a certain
534 You can compile this driver directly into the kernel, or use
535 it as a module. The module will be called sc520_wdt.
537 config SBC_FITPC2_WATCHDOG
538 tristate "Compulab SBC-FITPC2 watchdog"
541 This is the driver for the built-in watchdog timer on the fit-PC2,
542 fit-PC2i, CM-iAM single-board computers made by Compulab.
544 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
545 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
547 Entering BIOS setup temporary disables watchdog operation regardless to current state,
548 so system will not be restarted while user in BIOS setup.
550 Once watchdog was enabled the system will be restarted every
551 "Watchdog Timer Value" period, so to prevent it user can restart or
552 disable the watchdog.
554 To compile this driver as a module, choose M here: the
555 module will be called sbc_fitpc2_wdt.
557 Most people will say N.
560 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
563 Enable support for the watchdog timer on the Eurotech CPU-1220 and
564 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
565 information are at <http://www.eurotech.it/>.
568 tristate "IB700 SBC Watchdog Timer"
571 This is the driver for the hardware watchdog on the IB700 Single
572 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
573 simply watches your kernel to make sure it doesn't freeze, and if
574 it does, it reboots your computer after a certain amount of time.
576 This driver is like the WDT501 driver but for slightly different hardware.
578 To compile this driver as a module, choose M here: the
579 module will be called ib700wdt.
581 Most people will say N.
584 tristate "IBM Automatic Server Restart"
587 This is the driver for the IBM Automatic Server Restart watchdog
588 timer built-in into some eServer xSeries machines.
590 To compile this driver as a module, choose M here: the
591 module will be called ibmasr.
594 tristate "ICP Single Board Computer Watchdog Timer"
597 This is a driver for the hardware watchdog on the ICP Single
598 Board Computer. This driver is working on (at least) the following
599 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
601 To compile this driver as a module, choose M here: the
602 module will be called wafer5823wdt.
605 tristate "Intel 6300ESB Timer/Watchdog"
608 Hardware driver for the watchdog timer built into the Intel
609 6300ESB controller hub.
611 To compile this driver as a module, choose M here: the
612 module will be called i6300esb.
615 tristate "Intel Atom E6xx Watchdog"
616 depends on X86 && PCI
621 Hardware driver for the watchdog timer built into the Intel
622 Atom E6XX (TunnelCreek) processor.
624 To compile this driver as a module, choose M here: the
625 module will be called ie6xx_wdt.
627 config INTEL_SCU_WATCHDOG
628 bool "Intel SCU Watchdog for Mobile Platforms"
629 depends on X86_INTEL_MID
631 Hardware driver for the watchdog time built into the Intel SCU
632 for Intel Mobile Platforms.
634 To compile this driver as a module, choose M here.
637 tristate "Intel TCO Timer/Watchdog"
638 depends on (X86 || IA64) && PCI
642 Hardware driver for the intel TCO timer based watchdog devices.
643 These drivers are included in the Intel 82801 I/O Controller
644 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
647 The TCO (Total Cost of Ownership) timer is a watchdog timer
648 that will reboot the machine after its second expiration. The
649 expiration time can be configured with the "heartbeat" parameter.
651 On some motherboards the driver may fail to reset the chipset's
652 NO_REBOOT flag which prevents the watchdog from rebooting the
653 machine. If this is the case you will get a kernel message like
654 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
656 To compile this driver as a module, choose M here: the
657 module will be called iTCO_wdt.
659 config ITCO_VENDOR_SUPPORT
660 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
663 Add vendor specific support to the intel TCO timer based watchdog
664 devices. At this moment we only have additional support for some
665 SuperMicro Inc. motherboards.
668 tristate "IT8712F (Smart Guardian) Watchdog Timer"
671 This is the driver for the built-in watchdog timer on the IT8712F
672 Super I/0 chipset used on many motherboards.
674 If the driver does not work, then make sure that the game port in
677 To compile this driver as a module, choose M here: the
678 module will be called it8712f_wdt.
681 tristate "IT87 Watchdog Timer"
684 This is the driver for the hardware watchdog on the ITE IT8702,
685 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728
688 If the driver does not work, then make sure that the game port in
691 This watchdog simply watches your kernel to make sure it doesn't
692 freeze, and if it does, it reboots your computer after a certain
695 To compile this driver as a module, choose M here: the module will
699 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
700 depends on X86 && PCI
702 A software monitoring watchdog and NMI sourcing driver. This driver
703 will detect lockups and provide a stack trace. This is a driver that
704 will only load on an HP ProLiant system with a minimum of iLO2 support.
705 To compile this driver as a module, choose M here: the module will be
709 tristate "Kontron COM Watchdog Timer"
710 depends on MFD_KEMPLD
713 Support for the PLD watchdog on some Kontron ETX and COMexpress
716 This driver can also be built as a module. If so, the module will be
719 config HPWDT_NMI_DECODING
720 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
721 depends on HP_WATCHDOG
724 When an NMI occurs this feature will make the necessary BIOS calls to
725 log the cause of the NMI.
728 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
731 This is a driver for National Semiconductor PC87307/PC97307 hardware
732 watchdog cards as found on the SC1200. This watchdog is mainly used
733 for power management purposes and can be used to power down the device
734 during inactivity periods (includes interrupt activity monitoring).
736 To compile this driver as a module, choose M here: the
737 module will be called sc1200wdt.
739 Most people will say N.
742 tristate "National Semiconductor SCx200 Watchdog"
743 depends on SCx200 && PCI
745 Enable the built-in watchdog timer support on the National
746 Semiconductor SCx200 processors.
748 If compiled as a module, it will be called scx200_wdt.
751 tristate "NS PC87413 watchdog"
754 This is the driver for the hardware watchdog on the PC87413 chipset
755 This watchdog simply watches your kernel to make sure it doesn't
756 freeze, and if it does, it reboots your computer after a certain
759 To compile this driver as a module, choose M here: the
760 module will be called pc87413_wdt.
762 Most people will say N.
765 tristate "nVidia TCO Timer/Watchdog"
766 depends on X86 && PCI
768 Hardware driver for the TCO timer built into the nVidia Hub family
769 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
770 watchdog timer that will reboot the machine after its second
771 expiration. The expiration time can be configured with the
772 "heartbeat" parameter.
774 On some motherboards the driver may fail to reset the chipset's
775 NO_REBOOT flag which prevents the watchdog from rebooting the
776 machine. If this is the case you will get a kernel message like
777 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
779 To compile this driver as a module, choose M here: the
780 module will be called nv_tco.
783 tristate "RDC R-321x SoC watchdog"
784 depends on X86_RDC321X
786 This is the driver for the built in hardware watchdog
787 in the RDC R-321x SoC.
789 To compile this driver as a module, choose M here: the
790 module will be called rdc321x_wdt.
793 tristate "SBC-60XX Watchdog Timer"
796 This driver can be used with the watchdog timer found on some
797 single board computers, namely the 6010 PII based computer.
798 It may well work with other cards. It reads port 0x443 to enable
799 and re-set the watchdog timer, and reads port 0x45 to disable
800 the watchdog. If you have a card that behave in similar ways,
801 you can probably make this driver work with your card as well.
803 You can compile this driver directly into the kernel, or use
804 it as a module. The module will be called sbc60xxwdt.
807 tristate "SBC8360 Watchdog Timer"
811 This is the driver for the hardware watchdog on the SBC8360 Single
812 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
814 To compile this driver as a module, choose M here: the
815 module will be called sbc8360.
817 Most people will say N.
820 tristate "SBC Nano 7240 Watchdog Timer"
821 depends on X86_32 && !UML
823 This is the driver for the hardware watchdog found on the IEI
824 single board computers EPIC Nano 7240 (and likely others). This
825 watchdog simply watches your kernel to make sure it doesn't freeze,
826 and if it does, it reboots your computer after a certain amount of
829 To compile this driver as a module, choose M here: the
830 module will be called sbc7240_wdt.
833 tristate "SMA CPU5 Watchdog"
837 To compile this driver as a module, choose M here: the
838 module will be called cpu5wdt.
840 config SMSC_SCH311X_WDT
841 tristate "SMSC SCH311X Watchdog Timer"
844 This is the driver for the hardware watchdog timer on the
845 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
846 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
849 To compile this driver as a module, choose M here: the
850 module will be called sch311x_wdt.
852 config SMSC37B787_WDT
853 tristate "Winbond SMsC37B787 Watchdog Timer"
856 This is the driver for the hardware watchdog component on the
857 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
858 from Vision Systems and maybe others.
860 This watchdog simply watches your kernel to make sure it doesn't
861 freeze, and if it does, it reboots your computer after a certain
864 Usually a userspace daemon will notify the kernel WDT driver that
865 userspace is still alive, at regular intervals.
867 To compile this driver as a module, choose M here: the
868 module will be called smsc37b787_wdt.
870 Most people will say N.
873 tristate "VIA Watchdog Timer"
874 depends on X86 && PCI
877 This is the driver for the hardware watchdog timer on VIA
878 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
880 To compile this driver as a module, choose M here; the module
881 will be called via_wdt.
883 Most people will say N.
886 tristate "W83627HF/W83627DHG Watchdog Timer"
890 This is the driver for the hardware watchdog on the W83627HF chipset
891 as used in Advantech PC-9578 and Tyan S2721-533 motherboards
892 (and likely others). The driver also supports the W83627DHG chip.
893 This watchdog simply watches your kernel to make sure it doesn't
894 freeze, and if it does, it reboots your computer after a certain
897 To compile this driver as a module, choose M here: the
898 module will be called w83627hf_wdt.
900 Most people will say N.
903 tristate "W83697HF/W83697HG Watchdog Timer"
906 This is the driver for the hardware watchdog on the W83697HF/HG
907 chipset as used in Dedibox/VIA motherboards (and likely others).
908 This watchdog simply watches your kernel to make sure it doesn't
909 freeze, and if it does, it reboots your computer after a certain
912 To compile this driver as a module, choose M here: the
913 module will be called w83697hf_wdt.
915 Most people will say N.
918 tristate "W83697UG/W83697UF Watchdog Timer"
921 This is the driver for the hardware watchdog on the W83697UG/UF
922 chipset as used in MSI Fuzzy CX700 VIA motherboards (and likely others).
923 This watchdog simply watches your kernel to make sure it doesn't
924 freeze, and if it does, it reboots your computer after a certain
927 To compile this driver as a module, choose M here: the
928 module will be called w83697ug_wdt.
930 Most people will say N.
933 tristate "W83877F (EMACS) Watchdog Timer"
936 This is the driver for the hardware watchdog on the W83877F chipset
937 as used in EMACS PC-104 motherboards (and likely others). This
938 watchdog simply watches your kernel to make sure it doesn't freeze,
939 and if it does, it reboots your computer after a certain amount of
942 To compile this driver as a module, choose M here: the
943 module will be called w83877f_wdt.
945 Most people will say N.
948 tristate "W83977F (PCM-5335) Watchdog Timer"
951 This is the driver for the hardware watchdog on the W83977F I/O chip
952 as used in AAEON's PCM-5335 SBC (and likely others). This
953 watchdog simply watches your kernel to make sure it doesn't freeze,
954 and if it does, it reboots your computer after a certain amount of
957 To compile this driver as a module, choose M here: the
958 module will be called w83977f_wdt.
961 tristate "ZF MachZ Watchdog"
964 If you are using a ZF Micro MachZ processor, say Y here, otherwise
965 N. This is the driver for the watchdog timer built-in on that
966 processor using ZF-Logic interface. This watchdog simply watches
967 your kernel to make sure it doesn't freeze, and if it does, it
968 reboots your computer after a certain amount of time.
970 To compile this driver as a module, choose M here: the
971 module will be called machzwd.
973 config SBC_EPX_C3_WATCHDOG
974 tristate "Winsystems SBC EPX-C3 watchdog"
977 This is the driver for the built-in watchdog timer on the EPX-C3
978 Single-board computer made by Winsystems, Inc.
980 *Note*: This hardware watchdog is not probeable and thus there
981 is no way to know if writing to its IO address will corrupt
982 your system or have any real effect. The only way to be sure
983 that this driver does what you want is to make sure you
984 are running it on an EPX-C3 from Winsystems with the watchdog
985 timer at IO address 0x1ee and 0x1ef. It will write to both those
986 IO ports. Basically, the assumption is made that if you compile
987 this driver into your kernel and/or load it as a module, that you
988 know what you are doing and that you are in fact running on an
991 To compile this driver as a module, choose M here: the
992 module will be called sbc_epx_c3.
998 config M54xx_WATCHDOG
999 tristate "MCF54xx watchdog support"
1002 To compile this driver as a module, choose M here: the
1003 module will be called m54xx_wdt.
1005 # MicroBlaze Architecture
1007 config XILINX_WATCHDOG
1008 tristate "Xilinx Watchdog timer"
1009 depends on MICROBLAZE
1011 Watchdog driver for the xps_timebase_wdt ip core.
1013 IMPORTANT: The xps_timebase_wdt parent must have the property
1014 "clock-frequency" at device tree.
1016 To compile this driver as a module, choose M here: the
1017 module will be called of_xilinx_wdt.
1022 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1025 Hardware driver for the built-in watchdog timer on the Atheros
1026 AR71XX/AR724X/AR913X SoCs.
1029 tristate "Broadcom BCM47xx Watchdog Timer"
1031 select WATCHDOG_CORE
1033 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1036 tristate "IDT RC32434 SoC Watchdog Timer"
1037 depends on MIKROTIK_RB532
1039 Hardware driver for the IDT RC32434 SoC built-in
1042 To compile this driver as a module, choose M here: the
1043 module will be called rc32434_wdt.
1046 tristate "Indy/I2 Hardware Watchdog"
1047 depends on SGI_HAS_INDYDOG
1049 Hardware driver for the Indy's/I2's watchdog. This is a
1050 watchdog timer that will reboot the machine after a 60 second
1051 timer expired and no process has written to /dev/watchdog during
1055 tristate "Ingenic jz4740 SoC hardware watchdog"
1056 depends on MACH_JZ4740
1057 select WATCHDOG_CORE
1059 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1062 tristate "MTX-1 Hardware Watchdog"
1063 depends on MIPS_MTX1
1065 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1066 will reboot the machine after a 100 seconds timer expired.
1069 tristate "PNX833x Hardware Watchdog"
1070 depends on SOC_PNX8335
1072 Hardware driver for the PNX833x's watchdog. This is a
1073 watchdog timer that will reboot the machine after a programmable
1074 timer has expired and no process has written to /dev/watchdog during
1078 tristate "Sibyte SoC hardware watchdog"
1081 Watchdog driver for the built in watchdog hardware in Sibyte
1082 SoC processors. There are apparently two watchdog timers
1083 on such processors; this driver supports only the first one,
1084 because currently Linux only supports exporting one watchdog
1087 To compile this driver as a loadable module, choose M here.
1088 The module will be called sb_wdog.
1091 tristate "TI AR7 Watchdog Timer"
1094 Hardware driver for the TI AR7 Watchdog Timer.
1097 tristate "Toshiba TXx9 Watchdog Timer"
1098 depends on CPU_TX39XX || CPU_TX49XX
1099 select WATCHDOG_CORE
1101 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1104 tristate "Cavium OCTEON SOC family Watchdog Timer"
1105 depends on CAVIUM_OCTEON_SOC
1107 select EXPORT_UASM if OCTEON_WDT = m
1109 Hardware driver for OCTEON's on chip watchdog timer.
1110 Enables the watchdog for all cores running Linux. It
1111 installs a NMI handler and pokes the watchdog based on an
1112 interrupt. On first expiration of the watchdog, the
1113 interrupt handler pokes it. The second expiration causes an
1114 NMI that prints a message. The third expiration causes a
1117 When userspace has /dev/watchdog open, no poking is done
1118 from the first interrupt, it is then only poked when the
1122 tristate "Broadcom BCM63xx hardware watchdog"
1125 Watchdog driver for the built in watchdog hardware in Broadcom
1128 To compile this driver as a loadable module, choose M here.
1129 The module will be called bcm63xx_wdt.
1132 tristate "Broadcom BCM2835 hardware watchdog"
1133 depends on ARCH_BCM2835
1134 select WATCHDOG_CORE
1136 Watchdog driver for the built in watchdog hardware in Broadcom
1139 To compile this driver as a loadable module, choose M here.
1140 The module will be called bcm2835_wdt.
1143 tristate "Lantiq SoC watchdog"
1146 Hardware driver for the Lantiq SoC Watchdog Timer.
1149 tristate "Ralink SoC watchdog"
1150 select WATCHDOG_CORE
1153 Hardware driver for the Ralink SoC Watchdog Timer.
1155 # PARISC Architecture
1157 # POWERPC Architecture
1160 tristate "GE Watchdog Timer"
1163 Watchdog timer found in a number of GE single board computers.
1166 bool "MPC52xx Watchdog Timer"
1167 depends on PPC_MPC52xx
1169 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1172 tristate "MPC8xxx Platform Watchdog Timer"
1173 depends on PPC_8xx || PPC_83xx || PPC_86xx
1175 This driver is for a SoC level watchdog that exists on some
1176 Freescale PowerPC processors. So far this driver supports:
1181 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1184 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1188 tristate "PIKA FPGA Watchdog"
1192 This enables the watchdog in the PIKA FPGA. Currently used on
1196 tristate "PowerPC Book-E Watchdog Timer"
1197 depends on BOOKE || 4xx
1198 select WATCHDOG_CORE
1200 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1201 MPC85xx SOCs and the IBM PowerPC 440.
1203 Please see Documentation/watchdog/watchdog-api.txt for
1206 config BOOKE_WDT_DEFAULT_TIMEOUT
1207 int "PowerPC Book-E Watchdog Timer Default Timeout"
1208 depends on BOOKE_WDT
1209 default 38 if PPC_FSL_BOOK3E
1210 range 0 63 if PPC_FSL_BOOK3E
1211 default 3 if !PPC_FSL_BOOK3E
1212 range 0 3 if !PPC_FSL_BOOK3E
1214 Select the default watchdog timer period to be used by the PowerPC
1215 Book-E watchdog driver. A watchdog "event" occurs when the bit
1216 position represented by this number transitions from zero to one.
1218 For Freescale Book-E processors, this is a number between 0 and 63.
1219 For other Book-E processors, this is a number between 0 and 3.
1221 The value can be overridden by the wdt_period command-line parameter.
1224 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1225 select WATCHDOG_CORE
1228 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1230 The driver can also be built as a module. If so, the module will be
1233 If unsure select N here.
1235 # PPC64 Architecture
1237 config WATCHDOG_RTAS
1238 tristate "RTAS watchdog"
1241 This driver adds watchdog support for the RTAS watchdog.
1243 To compile this driver as a module, choose M here. The module
1244 will be called wdrtas.
1249 tristate "z/VM Watchdog Timer"
1252 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1253 provide a virtual watchdog timer to their guest that cause a
1254 user define Control Program command to be executed after a
1257 To compile this driver as a module, choose M here. The module
1258 will be called vmwatchdog.
1260 # SUPERH (sh + sh64) Architecture
1263 tristate "SuperH Watchdog"
1264 depends on SUPERH && (CPU_SH3 || CPU_SH4)
1265 select WATCHDOG_CORE
1267 This driver adds watchdog support for the integrated watchdog in the
1268 SuperH processors. If you have one of these processors and wish
1269 to have watchdog support enabled, say Y, otherwise say N.
1271 As a side note, saying Y here will automatically boost HZ to 1000
1272 so that the timer has a chance to clear the overflow counter. On
1273 slower systems (such as the SH-2 and SH-3) this will likely yield
1274 some performance issues. As such, the WDT should be avoided here
1275 unless it is absolutely necessary.
1277 To compile this driver as a module, choose M here: the
1278 module will be called shwdt.
1280 # SPARC Architecture
1282 # SPARC64 Architecture
1284 config WATCHDOG_CP1XXX
1285 tristate "CP1XXX Hardware Watchdog support"
1286 depends on SPARC64 && PCI
1288 This is the driver for the hardware watchdog timers present on
1289 Sun Microsystems CompactPCI models CP1400 and CP1500.
1291 To compile this driver as a module, choose M here: the
1292 module will be called cpwatchdog.
1294 If you do not have a CompactPCI model CP1400 or CP1500, or
1295 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1296 you should say N to this option.
1299 tristate "RIO Hardware Watchdog support"
1300 depends on SPARC64 && PCI
1302 Say Y here to support the hardware watchdog capability on Sun RIO
1303 machines. The watchdog timeout period is normally one minute but
1304 can be changed with a boot-time parameter.
1306 # XTENSA Architecture
1311 tristate "Xen Watchdog support"
1314 Say Y here to support the hypervisor watchdog capability provided
1315 by Xen 4.0 and newer. The watchdog timeout period is normally one
1316 minute but can be changed with a boot-time parameter.
1319 tristate "UML watchdog"
1323 # ISA-based Watchdog Cards
1326 comment "ISA-based Watchdog Cards"
1330 tristate "Berkshire Products ISA-PC Watchdog"
1333 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1334 This card simply watches your kernel to make sure it doesn't freeze,
1335 and if it does, it reboots your computer after a certain amount of
1336 time. This driver is like the WDT501 driver but for different
1337 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1338 watchdog cards can be ordered from <http://www.berkprod.com/>.
1340 To compile this driver as a module, choose M here: the
1341 module will be called pcwd.
1343 Most people will say N.
1346 tristate "Mixcom Watchdog"
1349 This is a driver for the Mixcom hardware watchdog cards. This
1350 watchdog simply watches your kernel to make sure it doesn't freeze,
1351 and if it does, it reboots your computer after a certain amount of
1354 To compile this driver as a module, choose M here: the
1355 module will be called mixcomwd.
1357 Most people will say N.
1360 tristate "WDT Watchdog timer"
1363 If you have a WDT500P or WDT501P watchdog board, say Y here,
1364 otherwise N. It is not possible to probe for this board, which means
1365 that you have to inform the kernel about the IO port and IRQ that
1366 is needed (you can do this via the io and irq parameters)
1368 To compile this driver as a module, choose M here: the
1369 module will be called wdt.
1372 # PCI-based Watchdog Cards
1375 comment "PCI-based Watchdog Cards"
1378 config PCIPCWATCHDOG
1379 tristate "Berkshire Products PCI-PC Watchdog"
1382 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1383 This card simply watches your kernel to make sure it doesn't freeze,
1384 and if it does, it reboots your computer after a certain amount of
1385 time. The card can also monitor the internal temperature of the PC.
1386 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1388 To compile this driver as a module, choose M here: the
1389 module will be called pcwd_pci.
1391 Most people will say N.
1394 tristate "PCI-WDT500/501 Watchdog timer"
1397 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1399 If you have a PCI-WDT501 watchdog board then you can enable the
1400 temperature sensor by setting the type parameter to 501.
1402 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1403 can do this via the tachometer parameter. Only do this if you have a
1404 fan tachometer actually set up.
1406 To compile this driver as a module, choose M here: the
1407 module will be called wdt_pci.
1410 # USB-based Watchdog Cards
1413 comment "USB-based Watchdog Cards"
1416 config USBPCWATCHDOG
1417 tristate "Berkshire Products USB-PC Watchdog"
1420 This is the driver for the Berkshire Products USB-PC Watchdog card.
1421 This card simply watches your kernel to make sure it doesn't freeze,
1422 and if it does, it reboots your computer after a certain amount of
1423 time. The card can also monitor the internal temperature of the PC.
1424 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1426 To compile this driver as a module, choose M here: the
1427 module will be called pcwd_usb.
1429 Most people will say N.