3 # Watchdog device configuration
7 bool "Watchdog Timer Support"
9 If you say Y here (and to one of the following options) and create a
10 character special file /dev/watchdog with major number 10 and minor
11 number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:
12 subsequently opening the file and then failing to write to it for
13 longer than 1 minute will result in rebooting the machine. This
14 could be useful for a networked machine that needs to come back
15 on-line as fast as possible after a lock-up. There's both a watchdog
16 implementation entirely in software (which can sometimes fail to
17 reboot the machine) and a driver for hardware watchdog boards, which
18 are more robust and can also keep track of the temperature inside
19 your computer. For details, read
20 <file:Documentation/watchdog/watchdog-api.txt> in the kernel source.
22 The watchdog is usually used together with the watchdog daemon
23 which is available from
24 <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can
25 also monitor NFS connections and can reboot the machine when the process
33 bool "WatchDog Timer Driver Core"
35 Say Y here if you want to use the new watchdog timer driver core.
36 This driver provides a framework for all watchdog timer drivers
37 and gives them the /dev/watchdog interface (and later also the
40 config WATCHDOG_NOWAYOUT
41 bool "Disable watchdog shutdown on close"
43 The default watchdog behaviour (which you get if you say N here) is
44 to stop the timer if the process managing it closes the file
45 /dev/watchdog. It's always remotely possible that this process might
46 get killed. If you say Y here, the watchdog cannot be stopped once
50 # General Watchdog drivers
53 comment "Watchdog Device Drivers"
55 # Architecture Independent
58 tristate "Software watchdog"
61 A software monitoring watchdog. This will fail to reboot your system
62 from some situations that the hardware watchdog will recover
63 from. Equally it's a lot cheaper to install.
65 To compile this driver as a module, choose M here: the
66 module will be called softdog.
68 config DA9052_WATCHDOG
69 tristate "Dialog DA9052 Watchdog"
70 depends on PMIC_DA9052
73 Support for the watchdog in the DA9052 PMIC. Watchdog trigger
76 Say Y here to include support for the DA9052 watchdog.
77 Alternatively say M to compile the driver as a module,
78 which will be called da9052_wdt.
80 config DA9055_WATCHDOG
81 tristate "Dialog Semiconductor DA9055 Watchdog"
85 If you say yes here you get support for watchdog on the Dialog
86 Semiconductor DA9055 PMIC.
88 This driver can also be built as a module. If so, the module
89 will be called da9055_wdt.
91 config DA9063_WATCHDOG
92 tristate "Dialog DA9063 Watchdog"
96 Support for the watchdog in the DA9063 PMIC.
98 This driver can be built as a module. The module name is da9063_wdt.
100 config DA9062_WATCHDOG
101 tristate "Dialog DA9062 Watchdog"
102 depends on MFD_DA9062
105 Support for the watchdog in the DA9062 PMIC.
107 This driver can be built as a module. The module name is da9062_wdt.
110 tristate "Watchdog device controlled through GPIO-line"
114 If you say yes here you get support for watchdog device
115 controlled through GPIO-line.
117 config GPIO_WATCHDOG_ARCH_INITCALL
118 bool "Register the watchdog as early as possible"
119 depends on GPIO_WATCHDOG=y
121 In some situations, the default initcall level (module_init)
122 in not early enough in the boot process to avoid the watchdog
124 If you say yes here, the initcall level would be raised to
128 config MENF21BMC_WATCHDOG
129 tristate "MEN 14F021P00 BMC Watchdog"
130 depends on MFD_MENF21BMC
133 Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
135 This driver can also be built as a module. If so the module
136 will be called menf21bmc_wdt.
138 config WM831X_WATCHDOG
139 tristate "WM831x watchdog"
140 depends on MFD_WM831X
143 Support for the watchdog in the WM831x AudioPlus PMICs. When
144 the watchdog triggers the system will be reset.
146 config WM8350_WATCHDOG
147 tristate "WM8350 watchdog"
148 depends on MFD_WM8350
151 Support for the watchdog in the WM8350 AudioPlus PMIC. When
152 the watchdog triggers the system will be reset.
154 config XILINX_WATCHDOG
155 tristate "Xilinx Watchdog timer"
159 Watchdog driver for the xps_timebase_wdt ip core.
161 To compile this driver as a module, choose M here: the
162 module will be called of_xilinx_wdt.
168 config ARM_SP805_WATCHDOG
169 tristate "ARM SP805 Watchdog"
170 depends on (ARM || ARM64) && ARM_AMBA
173 ARM Primecell SP805 Watchdog timer. This will reboot your system when
174 the timeout is reached.
176 config AT91RM9200_WATCHDOG
177 tristate "AT91RM9200 watchdog"
178 depends on SOC_AT91RM9200 && MFD_SYSCON
180 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
181 system when the timeout is reached.
183 config AT91SAM9X_WATCHDOG
184 tristate "AT91SAM9X / AT91CAP9 watchdog"
188 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
189 reboot your system when the timeout is reached.
191 config CADENCE_WATCHDOG
192 tristate "Cadence Watchdog Timer"
196 Say Y here if you want to include support for the watchdog
197 timer in the Xilinx Zynq.
199 config 21285_WATCHDOG
200 tristate "DC21285 watchdog"
201 depends on FOOTBRIDGE
203 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
204 here if you wish to use this. Alternatively say M to compile the
205 driver as a module, which will be called wdt285.
207 This driver does not work on all machines. In particular, early CATS
208 boards have hardware problems that will cause the machine to simply
209 lock up if the watchdog fires.
211 "If in doubt, leave it out" - say N.
214 tristate "NetWinder WB83C977 watchdog"
215 depends on FOOTBRIDGE && ARCH_NETWINDER
217 Say Y here to include support for the WB977 watchdog included in
218 NetWinder machines. Alternatively say M to compile the driver as
219 a module, which will be called wdt977.
221 Not sure? It's safe to say N.
223 config IXP4XX_WATCHDOG
224 tristate "IXP4xx Watchdog"
225 depends on ARCH_IXP4XX
227 Say Y here if to include support for the watchdog timer
228 in the Intel IXP4xx network processors. This driver can
229 be built as a module by choosing M. The module will
230 be called ixp4xx_wdt.
232 Note: The internal IXP4xx watchdog does a soft CPU reset
233 which doesn't reset any peripherals. There are circumstances
234 where the watchdog will fail to reset the board correctly
235 (e.g., if the boot ROM is in an unreadable state).
237 Say N if you are unsure.
239 config KS8695_WATCHDOG
240 tristate "KS8695 watchdog"
241 depends on ARCH_KS8695
243 Watchdog timer embedded into KS8695 processor. This will reboot your
244 system when the timeout is reached.
246 config HAVE_S3C2410_WATCHDOG
249 This will include watchdog timer support for Samsung SoCs. If
250 you want to include watchdog support for any machine, kindly
251 select this in the respective mach-XXXX/Kconfig file.
253 config S3C2410_WATCHDOG
254 tristate "S3C2410 Watchdog"
255 depends on HAVE_S3C2410_WATCHDOG
257 select MFD_SYSCON if ARCH_EXYNOS5
259 Watchdog timer block in the Samsung SoCs. This will reboot
260 the system when the timer expires with the watchdog enabled.
262 The driver is limited by the speed of the system's PCLK
263 signal, so with reasonably fast systems (PCLK around 50-66MHz)
264 then watchdog intervals of over approximately 20seconds are
267 The driver can be built as a module by choosing M, and will
268 be called s3c2410_wdt
270 config SA1100_WATCHDOG
271 tristate "SA1100/PXA2xx watchdog"
272 depends on ARCH_SA1100 || ARCH_PXA
274 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
275 reboot your system when timeout is reached.
277 NOTE: once enabled, this timer cannot be disabled.
279 To compile this driver as a module, choose M here: the
280 module will be called sa1100_wdt.
283 tristate "Synopsys DesignWare watchdog"
286 Say Y here if to include support for the Synopsys DesignWare
287 watchdog timer found in many chips.
288 To compile this driver as a module, choose M here: the
289 module will be called dw_wdt.
291 config EP93XX_WATCHDOG
292 tristate "EP93xx Watchdog"
293 depends on ARCH_EP93XX
296 Say Y here if to include support for the watchdog timer
297 embedded in the Cirrus Logic EP93xx family of devices.
299 To compile this driver as a module, choose M here: the
300 module will be called ep93xx_wdt.
303 tristate "OMAP Watchdog"
304 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
307 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
308 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
310 config PNX4008_WATCHDOG
311 tristate "LPC32XX Watchdog"
312 depends on ARCH_LPC32XX
315 Say Y here if to include support for the watchdog timer
316 in the LPC32XX processor.
317 This driver can be built as a module by choosing M. The module
318 will be called pnx4008_wdt.
320 Say N if you are unsure.
323 tristate "IOP Watchdog"
324 depends on ARCH_IOP13XX
325 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
327 Say Y here if to include support for the watchdog timer
328 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
329 be built as a module by choosing M. The module will
332 Note: The IOP13XX watchdog does an Internal Bus Reset which will
333 affect both cores and the peripherals of the IOP. The ATU-X
334 and/or ATUe configuration registers will remain intact, but if
335 operating as an Root Complex and/or Central Resource, the PCI-X
336 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
338 config DAVINCI_WATCHDOG
339 tristate "DaVinci watchdog"
340 depends on ARCH_DAVINCI || ARCH_KEYSTONE
343 Say Y here if to include support for the watchdog timer
344 in the DaVinci DM644x/DM646x or Keystone processors.
345 To compile this driver as a module, choose M here: the
346 module will be called davinci_wdt.
348 NOTE: once enabled, this timer cannot be disabled.
349 Say N if you are unsure.
351 config ORION_WATCHDOG
352 tristate "Orion watchdog"
353 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU
356 Say Y here if to include support for the watchdog timer
357 in the Marvell Orion5x and Kirkwood ARM SoCs.
358 To compile this driver as a module, choose M here: the
359 module will be called orion_wdt.
361 config RN5T618_WATCHDOG
362 tristate "Ricoh RN5T618 watchdog"
363 depends on MFD_RN5T618
366 If you say yes here you get support for watchdog on the Ricoh
369 This driver can also be built as a module. If so, the module
370 will be called rn5t618_wdt.
372 config SUNXI_WATCHDOG
373 tristate "Allwinner SoCs watchdog support"
374 depends on ARCH_SUNXI
377 Say Y here to include support for the watchdog timer
379 To compile this driver as a module, choose M here: the
380 module will be called sunxi_wdt.
382 config COH901327_WATCHDOG
383 bool "ST-Ericsson COH 901 327 watchdog"
385 default y if MACH_U300
388 Say Y here to include Watchdog timer support for the
389 watchdog embedded into the ST-Ericsson U300 series platforms.
390 This watchdog is used to reset the system and thus cannot be
391 compiled as a module.
393 config TWL4030_WATCHDOG
394 tristate "TWL4030 Watchdog"
395 depends on TWL4030_CORE
398 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
399 watchdog timer support for TWL4030 chips.
401 config STMP3XXX_RTC_WATCHDOG
402 tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
403 depends on RTC_DRV_STMP
406 Say Y here to include support for the watchdog timer inside
407 the RTC for the STMP37XX/378X or i.MX23/28 SoC.
408 To compile this driver as a module, choose M here: the
409 module will be called stmp3xxx_rtc_wdt.
411 config NUC900_WATCHDOG
412 tristate "Nuvoton NUC900 watchdog"
413 depends on ARCH_W90X900
415 Say Y here if to include support for the watchdog timer
416 for the Nuvoton NUC900 series SoCs.
417 To compile this driver as a module, choose M here: the
418 module will be called nuc900_wdt.
420 config TS72XX_WATCHDOG
421 tristate "TS-72XX SBC Watchdog"
422 depends on MACH_TS72XX
424 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
425 watchdog timer implemented in a external CPLD chip. Say Y here
426 if you want to support for the watchdog timer on TS-72XX boards.
428 To compile this driver as a module, choose M here: the
429 module will be called ts72xx_wdt.
431 config MAX63XX_WATCHDOG
432 tristate "Max63xx watchdog"
436 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
439 tristate "IMX2+ Watchdog"
444 This is the driver for the hardware watchdog
445 on the Freescale IMX2 and later processors.
446 If you have one of these processors and wish to have
447 watchdog support enabled, say Y, otherwise say N.
449 To compile this driver as a module, choose M here: the
450 module will be called imx2_wdt.
452 config UX500_WATCHDOG
453 tristate "ST-Ericsson Ux500 watchdog"
454 depends on MFD_DB8500_PRCMU
458 Say Y here to include Watchdog timer support for the watchdog
459 existing in the prcmu of ST-Ericsson Ux500 series platforms.
461 To compile this driver as a module, choose M here: the
462 module will be called ux500_wdt.
465 tristate "Retu watchdog"
469 Retu watchdog driver for Nokia Internet Tablets (770, N800,
470 N810). At least on N800 the watchdog cannot be disabled, so
471 this driver is essential and you should enable it.
473 To compile this driver as a module, choose M here: the
474 module will be called retu_wdt.
477 tristate "MOXART watchdog"
478 depends on ARCH_MOXART
480 Say Y here to include Watchdog timer support for the watchdog
481 existing on the MOXA ART SoC series platforms.
483 To compile this driver as a module, choose M here: the
484 module will be called moxart_wdt.
486 config SIRFSOC_WATCHDOG
487 tristate "SiRFSOC watchdog"
492 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
493 the watchdog triggers the system will be reset.
495 config ST_LPC_WATCHDOG
496 tristate "STMicroelectronics LPC Watchdog"
501 Say Y here to include STMicroelectronics Low Power Controller
502 (LPC) based Watchdog timer support.
504 To compile this driver as a module, choose M here: the
505 module will be called st_lpc_wdt.
507 config TEGRA_WATCHDOG
508 tristate "Tegra watchdog"
509 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
512 Say Y here to include support for the watchdog timer
513 embedded in NVIDIA Tegra SoCs.
515 To compile this driver as a module, choose M here: the
516 module will be called tegra_wdt.
519 tristate "QCOM watchdog"
524 Say Y here to include Watchdog timer support for the watchdog found
525 on QCOM chipsets. Currently supported targets are the MSM8960,
526 APQ8064, and IPQ8064.
528 To compile this driver as a module, choose M here: the
529 module will be called qcom_wdt.
531 config MESON_WATCHDOG
532 tristate "Amlogic Meson SoCs watchdog support"
533 depends on ARCH_MESON
536 Say Y here to include support for the watchdog timer
537 in Amlogic Meson SoCs.
538 To compile this driver as a module, choose M here: the
539 module will be called meson_wdt.
541 config MEDIATEK_WATCHDOG
542 tristate "Mediatek SoCs watchdog support"
543 depends on ARCH_MEDIATEK
546 Say Y here to include support for the watchdog timer
548 To compile this driver as a module, choose M here: the
549 module will be called mtk_wdt.
551 config DIGICOLOR_WATCHDOG
552 tristate "Conexant Digicolor SoCs watchdog support"
553 depends on ARCH_DIGICOLOR
556 Say Y here to include support for the watchdog timer
557 in Conexant Digicolor SoCs.
558 To compile this driver as a module, choose M here: the
559 module will be called digicolor_wdt.
563 config AT32AP700X_WDT
564 tristate "AT32AP700x watchdog"
565 depends on CPU_AT32AP700X
567 Watchdog timer embedded into AT32AP700x devices. This will reboot
568 your system when the timeout is reached.
570 # BLACKFIN Architecture
573 tristate "Blackfin On-Chip Watchdog Timer"
576 If you say yes here you will get support for the Blackfin On-Chip
577 Watchdog Timer. If you have one of these processors and wish to
578 have watchdog support enabled, say Y, otherwise say N.
580 To compile this driver as a module, choose M here: the
581 module will be called bfin_wdt.
587 # X86 (i386 + ia64 + x86_64) Architecture
590 tristate "Acquire SBC Watchdog Timer"
593 This is the driver for the hardware watchdog on Single Board
594 Computers produced by Acquire Inc (and others). This watchdog
595 simply watches your kernel to make sure it doesn't freeze, and if
596 it does, it reboots your computer after a certain amount of time.
598 To compile this driver as a module, choose M here: the
599 module will be called acquirewdt.
601 Most people will say N.
604 tristate "Advantech SBC Watchdog Timer"
607 If you are configuring a Linux kernel for the Advantech single-board
608 computer, say `Y' here to support its built-in watchdog timer
609 feature. More information can be found at
610 <http://www.advantech.com.tw/products/>
613 tristate "ALi M1535 PMU Watchdog Timer"
614 depends on X86 && PCI
616 This is the driver for the hardware watchdog on the ALi M1535 PMU.
618 To compile this driver as a module, choose M here: the
619 module will be called alim1535_wdt.
621 Most people will say N.
624 tristate "ALi M7101 PMU Computer Watchdog"
627 This is the driver for the hardware watchdog on the ALi M7101 PMU
628 as used in the x86 Cobalt servers and also found in some
629 SPARC Netra servers too.
631 To compile this driver as a module, choose M here: the
632 module will be called alim7101_wdt.
634 Most people will say N.
637 tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
640 This is the driver for the hardware watchdog on the Fintek
641 F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
643 You can compile this driver directly into the kernel, or use
644 it as a module. The module will be called f71808e_wdt.
647 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
648 depends on X86 && PCI
650 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
651 (Total Cost of Ownership) timer is a watchdog timer that will reboot
652 the machine after its expiration. The expiration time can be
653 configured with the "heartbeat" parameter.
655 To compile this driver as a module, choose M here: the
656 module will be called sp5100_tco.
659 tristate "AMD Geode CS5535/CS5536 Watchdog"
660 depends on CS5535_MFGPT
662 This driver enables a watchdog capability built into the
663 CS5535/CS5536 companion chips for the AMD Geode GX and LX
664 processors. This watchdog watches your kernel to make sure
665 it doesn't freeze, and if it does, it reboots your computer after
666 a certain amount of time.
668 You can compile this driver directly into the kernel, or use
669 it as a module. The module will be called geodewdt.
672 tristate "AMD Elan SC520 processor Watchdog"
675 This is the driver for the hardware watchdog built in to the
676 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
677 This watchdog simply watches your kernel to make sure it doesn't
678 freeze, and if it does, it reboots your computer after a certain
681 You can compile this driver directly into the kernel, or use
682 it as a module. The module will be called sc520_wdt.
684 config SBC_FITPC2_WATCHDOG
685 tristate "Compulab SBC-FITPC2 watchdog"
688 This is the driver for the built-in watchdog timer on the fit-PC2,
689 fit-PC2i, CM-iAM single-board computers made by Compulab.
691 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
692 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
694 Entering BIOS setup temporary disables watchdog operation regardless to current state,
695 so system will not be restarted while user in BIOS setup.
697 Once watchdog was enabled the system will be restarted every
698 "Watchdog Timer Value" period, so to prevent it user can restart or
699 disable the watchdog.
701 To compile this driver as a module, choose M here: the
702 module will be called sbc_fitpc2_wdt.
704 Most people will say N.
707 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
710 Enable support for the watchdog timer on the Eurotech CPU-1220 and
711 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
712 information are at <http://www.eurotech.it/>.
715 tristate "IB700 SBC Watchdog Timer"
718 This is the driver for the hardware watchdog on the IB700 Single
719 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
720 simply watches your kernel to make sure it doesn't freeze, and if
721 it does, it reboots your computer after a certain amount of time.
723 This driver is like the WDT501 driver but for slightly different hardware.
725 To compile this driver as a module, choose M here: the
726 module will be called ib700wdt.
728 Most people will say N.
731 tristate "IBM Automatic Server Restart"
734 This is the driver for the IBM Automatic Server Restart watchdog
735 timer built-in into some eServer xSeries machines.
737 To compile this driver as a module, choose M here: the
738 module will be called ibmasr.
741 tristate "ICP Single Board Computer Watchdog Timer"
744 This is a driver for the hardware watchdog on the ICP Single
745 Board Computer. This driver is working on (at least) the following
746 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
748 To compile this driver as a module, choose M here: the
749 module will be called wafer5823wdt.
752 tristate "Intel 6300ESB Timer/Watchdog"
755 Hardware driver for the watchdog timer built into the Intel
756 6300ESB controller hub.
758 To compile this driver as a module, choose M here: the
759 module will be called i6300esb.
762 tristate "Intel Atom E6xx Watchdog"
763 depends on X86 && PCI
768 Hardware driver for the watchdog timer built into the Intel
769 Atom E6XX (TunnelCreek) processor.
771 To compile this driver as a module, choose M here: the
772 module will be called ie6xx_wdt.
774 config INTEL_SCU_WATCHDOG
775 bool "Intel SCU Watchdog for Mobile Platforms"
776 depends on X86_INTEL_MID
778 Hardware driver for the watchdog time built into the Intel SCU
779 for Intel Mobile Platforms.
781 To compile this driver as a module, choose M here.
783 config INTEL_MID_WATCHDOG
784 tristate "Intel MID Watchdog Timer"
785 depends on X86_INTEL_MID
788 Watchdog timer driver built into the Intel SCU for Intel MID
791 This driver currently supports only the watchdog evolution
792 implementation in SCU, available for Merrifield generation.
794 To compile this driver as a module, choose M here.
797 tristate "Intel TCO Timer/Watchdog"
798 depends on (X86 || IA64) && PCI
800 select LPC_ICH if !EXPERT
801 select I2C_I801 if !EXPERT
803 Hardware driver for the intel TCO timer based watchdog devices.
804 These drivers are included in the Intel 82801 I/O Controller
805 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
808 The TCO (Total Cost of Ownership) timer is a watchdog timer
809 that will reboot the machine after its second expiration. The
810 expiration time can be configured with the "heartbeat" parameter.
812 On some motherboards the driver may fail to reset the chipset's
813 NO_REBOOT flag which prevents the watchdog from rebooting the
814 machine. If this is the case you will get a kernel message like
815 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
817 To compile this driver as a module, choose M here: the
818 module will be called iTCO_wdt.
820 config ITCO_VENDOR_SUPPORT
821 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
824 Add vendor specific support to the intel TCO timer based watchdog
825 devices. At this moment we only have additional support for some
826 SuperMicro Inc. motherboards.
829 tristate "IT8712F (Smart Guardian) Watchdog Timer"
832 This is the driver for the built-in watchdog timer on the IT8712F
833 Super I/0 chipset used on many motherboards.
835 If the driver does not work, then make sure that the game port in
838 To compile this driver as a module, choose M here: the
839 module will be called it8712f_wdt.
842 tristate "IT87 Watchdog Timer"
845 This is the driver for the hardware watchdog on the ITE IT8702,
846 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728
849 If the driver does not work, then make sure that the game port in
852 This watchdog simply watches your kernel to make sure it doesn't
853 freeze, and if it does, it reboots your computer after a certain
856 To compile this driver as a module, choose M here: the module will
860 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
861 depends on X86 && PCI
863 A software monitoring watchdog and NMI sourcing driver. This driver
864 will detect lockups and provide a stack trace. This is a driver that
865 will only load on an HP ProLiant system with a minimum of iLO2 support.
866 To compile this driver as a module, choose M here: the module will be
870 tristate "Kontron COM Watchdog Timer"
871 depends on MFD_KEMPLD
874 Support for the PLD watchdog on some Kontron ETX and COMexpress
877 This driver can also be built as a module. If so, the module will be
880 config HPWDT_NMI_DECODING
881 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
882 depends on HP_WATCHDOG
885 When an NMI occurs this feature will make the necessary BIOS calls to
886 log the cause of the NMI.
889 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
892 This is a driver for National Semiconductor PC87307/PC97307 hardware
893 watchdog cards as found on the SC1200. This watchdog is mainly used
894 for power management purposes and can be used to power down the device
895 during inactivity periods (includes interrupt activity monitoring).
897 To compile this driver as a module, choose M here: the
898 module will be called sc1200wdt.
900 Most people will say N.
903 tristate "National Semiconductor SCx200 Watchdog"
904 depends on SCx200 && PCI
906 Enable the built-in watchdog timer support on the National
907 Semiconductor SCx200 processors.
909 If compiled as a module, it will be called scx200_wdt.
912 tristate "NS PC87413 watchdog"
915 This is the driver for the hardware watchdog on the PC87413 chipset
916 This watchdog simply watches your kernel to make sure it doesn't
917 freeze, and if it does, it reboots your computer after a certain
920 To compile this driver as a module, choose M here: the
921 module will be called pc87413_wdt.
923 Most people will say N.
926 tristate "nVidia TCO Timer/Watchdog"
927 depends on X86 && PCI
929 Hardware driver for the TCO timer built into the nVidia Hub family
930 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
931 watchdog timer that will reboot the machine after its second
932 expiration. The expiration time can be configured with the
933 "heartbeat" parameter.
935 On some motherboards the driver may fail to reset the chipset's
936 NO_REBOOT flag which prevents the watchdog from rebooting the
937 machine. If this is the case you will get a kernel message like
938 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
940 To compile this driver as a module, choose M here: the
941 module will be called nv_tco.
944 tristate "RDC R-321x SoC watchdog"
945 depends on X86_RDC321X
947 This is the driver for the built in hardware watchdog
948 in the RDC R-321x SoC.
950 To compile this driver as a module, choose M here: the
951 module will be called rdc321x_wdt.
954 tristate "SBC-60XX Watchdog Timer"
957 This driver can be used with the watchdog timer found on some
958 single board computers, namely the 6010 PII based computer.
959 It may well work with other cards. It reads port 0x443 to enable
960 and re-set the watchdog timer, and reads port 0x45 to disable
961 the watchdog. If you have a card that behave in similar ways,
962 you can probably make this driver work with your card as well.
964 You can compile this driver directly into the kernel, or use
965 it as a module. The module will be called sbc60xxwdt.
968 tristate "SBC8360 Watchdog Timer"
972 This is the driver for the hardware watchdog on the SBC8360 Single
973 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
975 To compile this driver as a module, choose M here: the
976 module will be called sbc8360.
978 Most people will say N.
981 tristate "SBC Nano 7240 Watchdog Timer"
982 depends on X86_32 && !UML
984 This is the driver for the hardware watchdog found on the IEI
985 single board computers EPIC Nano 7240 (and likely others). This
986 watchdog simply watches your kernel to make sure it doesn't freeze,
987 and if it does, it reboots your computer after a certain amount of
990 To compile this driver as a module, choose M here: the
991 module will be called sbc7240_wdt.
994 tristate "SMA CPU5 Watchdog"
998 To compile this driver as a module, choose M here: the
999 module will be called cpu5wdt.
1001 config SMSC_SCH311X_WDT
1002 tristate "SMSC SCH311X Watchdog Timer"
1005 This is the driver for the hardware watchdog timer on the
1006 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1007 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1010 To compile this driver as a module, choose M here: the
1011 module will be called sch311x_wdt.
1013 config SMSC37B787_WDT
1014 tristate "Winbond SMsC37B787 Watchdog Timer"
1017 This is the driver for the hardware watchdog component on the
1018 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1019 from Vision Systems and maybe others.
1021 This watchdog simply watches your kernel to make sure it doesn't
1022 freeze, and if it does, it reboots your computer after a certain
1025 Usually a userspace daemon will notify the kernel WDT driver that
1026 userspace is still alive, at regular intervals.
1028 To compile this driver as a module, choose M here: the
1029 module will be called smsc37b787_wdt.
1031 Most people will say N.
1034 tristate "VIA Watchdog Timer"
1035 depends on X86 && PCI
1036 select WATCHDOG_CORE
1038 This is the driver for the hardware watchdog timer on VIA
1039 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1041 To compile this driver as a module, choose M here; the module
1042 will be called via_wdt.
1044 Most people will say N.
1047 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1049 select WATCHDOG_CORE
1051 This is the driver for the hardware watchdog on the following
1053 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1065 This watchdog simply watches your kernel to make sure it doesn't
1066 freeze, and if it does, it reboots your computer after a certain
1069 To compile this driver as a module, choose M here: the
1070 module will be called w83627hf_wdt.
1072 Most people will say N.
1075 tristate "W83877F (EMACS) Watchdog Timer"
1078 This is the driver for the hardware watchdog on the W83877F chipset
1079 as used in EMACS PC-104 motherboards (and likely others). This
1080 watchdog simply watches your kernel to make sure it doesn't freeze,
1081 and if it does, it reboots your computer after a certain amount of
1084 To compile this driver as a module, choose M here: the
1085 module will be called w83877f_wdt.
1087 Most people will say N.
1090 tristate "W83977F (PCM-5335) Watchdog Timer"
1093 This is the driver for the hardware watchdog on the W83977F I/O chip
1094 as used in AAEON's PCM-5335 SBC (and likely others). This
1095 watchdog simply watches your kernel to make sure it doesn't freeze,
1096 and if it does, it reboots your computer after a certain amount of
1099 To compile this driver as a module, choose M here: the
1100 module will be called w83977f_wdt.
1103 tristate "ZF MachZ Watchdog"
1106 If you are using a ZF Micro MachZ processor, say Y here, otherwise
1107 N. This is the driver for the watchdog timer built-in on that
1108 processor using ZF-Logic interface. This watchdog simply watches
1109 your kernel to make sure it doesn't freeze, and if it does, it
1110 reboots your computer after a certain amount of time.
1112 To compile this driver as a module, choose M here: the
1113 module will be called machzwd.
1115 config SBC_EPX_C3_WATCHDOG
1116 tristate "Winsystems SBC EPX-C3 watchdog"
1119 This is the driver for the built-in watchdog timer on the EPX-C3
1120 Single-board computer made by Winsystems, Inc.
1122 *Note*: This hardware watchdog is not probeable and thus there
1123 is no way to know if writing to its IO address will corrupt
1124 your system or have any real effect. The only way to be sure
1125 that this driver does what you want is to make sure you
1126 are running it on an EPX-C3 from Winsystems with the watchdog
1127 timer at IO address 0x1ee and 0x1ef. It will write to both those
1128 IO ports. Basically, the assumption is made that if you compile
1129 this driver into your kernel and/or load it as a module, that you
1130 know what you are doing and that you are in fact running on an
1133 To compile this driver as a module, choose M here: the
1134 module will be called sbc_epx_c3.
1140 config M54xx_WATCHDOG
1141 tristate "MCF54xx watchdog support"
1144 To compile this driver as a module, choose M here: the
1145 module will be called m54xx_wdt.
1147 # MicroBlaze Architecture
1152 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1155 Hardware driver for the built-in watchdog timer on the Atheros
1156 AR71XX/AR724X/AR913X SoCs.
1159 tristate "Broadcom BCM47xx Watchdog Timer"
1160 depends on BCM47XX || ARCH_BCM_5301X
1161 select WATCHDOG_CORE
1163 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1166 tristate "IDT RC32434 SoC Watchdog Timer"
1167 depends on MIKROTIK_RB532
1169 Hardware driver for the IDT RC32434 SoC built-in
1172 To compile this driver as a module, choose M here: the
1173 module will be called rc32434_wdt.
1176 tristate "Indy/I2 Hardware Watchdog"
1177 depends on SGI_HAS_INDYDOG
1179 Hardware driver for the Indy's/I2's watchdog. This is a
1180 watchdog timer that will reboot the machine after a 60 second
1181 timer expired and no process has written to /dev/watchdog during
1185 tristate "Ingenic jz4740 SoC hardware watchdog"
1186 depends on MACH_JZ4740
1187 select WATCHDOG_CORE
1189 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1192 tristate "MTX-1 Hardware Watchdog"
1193 depends on MIPS_MTX1
1195 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1196 will reboot the machine after a 100 seconds timer expired.
1199 tristate "PNX833x Hardware Watchdog"
1200 depends on SOC_PNX8335
1202 Hardware driver for the PNX833x's watchdog. This is a
1203 watchdog timer that will reboot the machine after a programmable
1204 timer has expired and no process has written to /dev/watchdog during
1208 tristate "Sibyte SoC hardware watchdog"
1211 Watchdog driver for the built in watchdog hardware in Sibyte
1212 SoC processors. There are apparently two watchdog timers
1213 on such processors; this driver supports only the first one,
1214 because currently Linux only supports exporting one watchdog
1217 To compile this driver as a loadable module, choose M here.
1218 The module will be called sb_wdog.
1221 tristate "TI AR7 Watchdog Timer"
1224 Hardware driver for the TI AR7 Watchdog Timer.
1227 tristate "Toshiba TXx9 Watchdog Timer"
1228 depends on CPU_TX39XX || CPU_TX49XX
1229 select WATCHDOG_CORE
1231 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1234 tristate "Cavium OCTEON SOC family Watchdog Timer"
1235 depends on CAVIUM_OCTEON_SOC
1237 select WATCHDOG_CORE
1238 select EXPORT_UASM if OCTEON_WDT = m
1240 Hardware driver for OCTEON's on chip watchdog timer.
1241 Enables the watchdog for all cores running Linux. It
1242 installs a NMI handler and pokes the watchdog based on an
1243 interrupt. On first expiration of the watchdog, the
1244 interrupt handler pokes it. The second expiration causes an
1245 NMI that prints a message. The third expiration causes a
1248 When userspace has /dev/watchdog open, no poking is done
1249 from the first interrupt, it is then only poked when the
1253 tristate "Broadcom BCM63xx hardware watchdog"
1256 Watchdog driver for the built in watchdog hardware in Broadcom
1259 To compile this driver as a loadable module, choose M here.
1260 The module will be called bcm63xx_wdt.
1263 tristate "Broadcom BCM2835 hardware watchdog"
1264 depends on ARCH_BCM2835
1265 select WATCHDOG_CORE
1267 Watchdog driver for the built in watchdog hardware in Broadcom
1270 To compile this driver as a loadable module, choose M here.
1271 The module will be called bcm2835_wdt.
1274 tristate "BCM Kona Watchdog"
1275 depends on ARCH_BCM_MOBILE
1276 select WATCHDOG_CORE
1278 Support for the watchdog timer on the following Broadcom BCM281xx
1279 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1282 Say 'Y' or 'M' here to enable the driver. The module will be called
1285 config BCM_KONA_WDT_DEBUG
1286 bool "DEBUGFS support for BCM Kona Watchdog"
1287 depends on BCM_KONA_WDT
1289 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1290 access to the driver's internal data structures as well as watchdog
1291 timer hardware registres.
1293 If in doubt, say 'N'.
1296 tristate "Imagination Technologies PDC Watchdog Timer"
1297 depends on HAS_IOMEM
1298 depends on METAG || MIPS || COMPILE_TEST
1300 Driver for Imagination Technologies PowerDown Controller
1303 To compile this driver as a loadable module, choose M here.
1304 The module will be called imgpdc_wdt.
1307 tristate "Lantiq SoC watchdog"
1310 Hardware driver for the Lantiq SoC Watchdog Timer.
1313 tristate "Ralink SoC watchdog"
1314 select WATCHDOG_CORE
1317 Hardware driver for the Ralink SoC Watchdog Timer.
1319 # PARISC Architecture
1321 # POWERPC Architecture
1324 tristate "GE Watchdog Timer"
1327 Watchdog timer found in a number of GE single board computers.
1330 bool "MPC52xx Watchdog Timer"
1331 depends on PPC_MPC52xx
1333 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1336 tristate "MPC8xxx Platform Watchdog Timer"
1337 depends on PPC_8xx || PPC_83xx || PPC_86xx
1338 select WATCHDOG_CORE
1340 This driver is for a SoC level watchdog that exists on some
1341 Freescale PowerPC processors. So far this driver supports:
1346 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1349 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1353 tristate "PIKA FPGA Watchdog"
1357 This enables the watchdog in the PIKA FPGA. Currently used on
1361 tristate "PowerPC Book-E Watchdog Timer"
1362 depends on BOOKE || 4xx
1363 select WATCHDOG_CORE
1365 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1366 MPC85xx SOCs and the IBM PowerPC 440.
1368 Please see Documentation/watchdog/watchdog-api.txt for
1371 config BOOKE_WDT_DEFAULT_TIMEOUT
1372 int "PowerPC Book-E Watchdog Timer Default Timeout"
1373 depends on BOOKE_WDT
1374 default 38 if PPC_FSL_BOOK3E
1375 range 0 63 if PPC_FSL_BOOK3E
1376 default 3 if !PPC_FSL_BOOK3E
1377 range 0 3 if !PPC_FSL_BOOK3E
1379 Select the default watchdog timer period to be used by the PowerPC
1380 Book-E watchdog driver. A watchdog "event" occurs when the bit
1381 position represented by this number transitions from zero to one.
1383 For Freescale Book-E processors, this is a number between 0 and 63.
1384 For other Book-E processors, this is a number between 0 and 3.
1386 The value can be overridden by the wdt_period command-line parameter.
1389 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1390 select WATCHDOG_CORE
1391 depends on GPIOLIB || COMPILE_TEST
1393 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1395 The driver can also be built as a module. If so, the module will be
1398 If unsure select N here.
1400 # PPC64 Architecture
1402 config WATCHDOG_RTAS
1403 tristate "RTAS watchdog"
1406 This driver adds watchdog support for the RTAS watchdog.
1408 To compile this driver as a module, choose M here. The module
1409 will be called wdrtas.
1413 config DIAG288_WATCHDOG
1414 tristate "System z diag288 Watchdog"
1416 select WATCHDOG_CORE
1418 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1419 provide a virtual watchdog timer to their guest that cause a
1420 user define Control Program command to be executed after a
1422 LPAR provides a very similar interface. This driver handles
1425 To compile this driver as a module, choose M here. The module
1426 will be called diag288_wdt.
1428 # SUPERH (sh + sh64) Architecture
1431 tristate "SuperH Watchdog"
1432 depends on SUPERH && (CPU_SH3 || CPU_SH4)
1433 select WATCHDOG_CORE
1435 This driver adds watchdog support for the integrated watchdog in the
1436 SuperH processors. If you have one of these processors and wish
1437 to have watchdog support enabled, say Y, otherwise say N.
1439 As a side note, saying Y here will automatically boost HZ to 1000
1440 so that the timer has a chance to clear the overflow counter. On
1441 slower systems (such as the SH-2 and SH-3) this will likely yield
1442 some performance issues. As such, the WDT should be avoided here
1443 unless it is absolutely necessary.
1445 To compile this driver as a module, choose M here: the
1446 module will be called shwdt.
1448 # SPARC Architecture
1450 # SPARC64 Architecture
1452 config WATCHDOG_CP1XXX
1453 tristate "CP1XXX Hardware Watchdog support"
1454 depends on SPARC64 && PCI
1456 This is the driver for the hardware watchdog timers present on
1457 Sun Microsystems CompactPCI models CP1400 and CP1500.
1459 To compile this driver as a module, choose M here: the
1460 module will be called cpwatchdog.
1462 If you do not have a CompactPCI model CP1400 or CP1500, or
1463 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1464 you should say N to this option.
1467 tristate "RIO Hardware Watchdog support"
1468 depends on SPARC64 && PCI
1470 Say Y here to support the hardware watchdog capability on Sun RIO
1471 machines. The watchdog timeout period is normally one minute but
1472 can be changed with a boot-time parameter.
1474 # XTENSA Architecture
1479 tristate "Xen Watchdog support"
1482 Say Y here to support the hypervisor watchdog capability provided
1483 by Xen 4.0 and newer. The watchdog timeout period is normally one
1484 minute but can be changed with a boot-time parameter.
1487 tristate "UML watchdog"
1491 # ISA-based Watchdog Cards
1494 comment "ISA-based Watchdog Cards"
1498 tristate "Berkshire Products ISA-PC Watchdog"
1501 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1502 This card simply watches your kernel to make sure it doesn't freeze,
1503 and if it does, it reboots your computer after a certain amount of
1504 time. This driver is like the WDT501 driver but for different
1505 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1506 watchdog cards can be ordered from <http://www.berkprod.com/>.
1508 To compile this driver as a module, choose M here: the
1509 module will be called pcwd.
1511 Most people will say N.
1514 tristate "Mixcom Watchdog"
1517 This is a driver for the Mixcom hardware watchdog cards. This
1518 watchdog simply watches your kernel to make sure it doesn't freeze,
1519 and if it does, it reboots your computer after a certain amount of
1522 To compile this driver as a module, choose M here: the
1523 module will be called mixcomwd.
1525 Most people will say N.
1528 tristate "WDT Watchdog timer"
1531 If you have a WDT500P or WDT501P watchdog board, say Y here,
1532 otherwise N. It is not possible to probe for this board, which means
1533 that you have to inform the kernel about the IO port and IRQ that
1534 is needed (you can do this via the io and irq parameters)
1536 To compile this driver as a module, choose M here: the
1537 module will be called wdt.
1540 # PCI-based Watchdog Cards
1543 comment "PCI-based Watchdog Cards"
1546 config PCIPCWATCHDOG
1547 tristate "Berkshire Products PCI-PC Watchdog"
1550 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1551 This card simply watches your kernel to make sure it doesn't freeze,
1552 and if it does, it reboots your computer after a certain amount of
1553 time. The card can also monitor the internal temperature of the PC.
1554 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1556 To compile this driver as a module, choose M here: the
1557 module will be called pcwd_pci.
1559 Most people will say N.
1562 tristate "PCI-WDT500/501 Watchdog timer"
1565 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1567 If you have a PCI-WDT501 watchdog board then you can enable the
1568 temperature sensor by setting the type parameter to 501.
1570 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1571 can do this via the tachometer parameter. Only do this if you have a
1572 fan tachometer actually set up.
1574 To compile this driver as a module, choose M here: the
1575 module will be called wdt_pci.
1578 # USB-based Watchdog Cards
1581 comment "USB-based Watchdog Cards"
1584 config USBPCWATCHDOG
1585 tristate "Berkshire Products USB-PC Watchdog"
1588 This is the driver for the Berkshire Products USB-PC Watchdog card.
1589 This card simply watches your kernel to make sure it doesn't freeze,
1590 and if it does, it reboots your computer after a certain amount of
1591 time. The card can also monitor the internal temperature of the PC.
1592 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1594 To compile this driver as a module, choose M here: the
1595 module will be called pcwd_usb.
1597 Most people will say N.