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 DA9063_WATCHDOG
91 tristate "Dialog DA9063 Watchdog"
95 Support for the watchdog in the DA9063 PMIC.
97 This driver can be built as a module. The module name is da9063_wdt.
100 tristate "Watchdog device controlled through GPIO-line"
104 If you say yes here you get support for watchdog device
105 controlled through GPIO-line.
107 config MENF21BMC_WATCHDOG
108 tristate "MEN 14F021P00 BMC Watchdog"
109 depends on MFD_MENF21BMC
112 Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
114 This driver can also be built as a module. If so the module
115 will be called menf21bmc_wdt.
117 config WM831X_WATCHDOG
118 tristate "WM831x watchdog"
119 depends on MFD_WM831X
122 Support for the watchdog in the WM831x AudioPlus PMICs. When
123 the watchdog triggers the system will be reset.
125 config WM8350_WATCHDOG
126 tristate "WM8350 watchdog"
127 depends on MFD_WM8350
130 Support for the watchdog in the WM8350 AudioPlus PMIC. When
131 the watchdog triggers the system will be reset.
133 config XILINX_WATCHDOG
134 tristate "Xilinx Watchdog timer"
138 Watchdog driver for the xps_timebase_wdt ip core.
140 To compile this driver as a module, choose M here: the
141 module will be called of_xilinx_wdt.
147 config ARM_SP805_WATCHDOG
148 tristate "ARM SP805 Watchdog"
149 depends on (ARM || ARM64) && ARM_AMBA
152 ARM Primecell SP805 Watchdog timer. This will reboot your system when
153 the timeout is reached.
155 config AT91RM9200_WATCHDOG
156 tristate "AT91RM9200 watchdog"
157 depends on SOC_AT91RM9200 && MFD_SYSCON
159 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
160 system when the timeout is reached.
162 config AT91SAM9X_WATCHDOG
163 tristate "AT91SAM9X / AT91CAP9 watchdog"
167 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
168 reboot your system when the timeout is reached.
170 config CADENCE_WATCHDOG
171 tristate "Cadence Watchdog Timer"
174 Say Y here if you want to include support for the watchdog
175 timer in the Xilinx Zynq.
177 config 21285_WATCHDOG
178 tristate "DC21285 watchdog"
179 depends on FOOTBRIDGE
181 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
182 here if you wish to use this. Alternatively say M to compile the
183 driver as a module, which will be called wdt285.
185 This driver does not work on all machines. In particular, early CATS
186 boards have hardware problems that will cause the machine to simply
187 lock up if the watchdog fires.
189 "If in doubt, leave it out" - say N.
192 tristate "NetWinder WB83C977 watchdog"
193 depends on FOOTBRIDGE && ARCH_NETWINDER
195 Say Y here to include support for the WB977 watchdog included in
196 NetWinder machines. Alternatively say M to compile the driver as
197 a module, which will be called wdt977.
199 Not sure? It's safe to say N.
201 config IXP4XX_WATCHDOG
202 tristate "IXP4xx Watchdog"
203 depends on ARCH_IXP4XX
205 Say Y here if to include support for the watchdog timer
206 in the Intel IXP4xx network processors. This driver can
207 be built as a module by choosing M. The module will
208 be called ixp4xx_wdt.
210 Note: The internal IXP4xx watchdog does a soft CPU reset
211 which doesn't reset any peripherals. There are circumstances
212 where the watchdog will fail to reset the board correctly
213 (e.g., if the boot ROM is in an unreadable state).
215 Say N if you are unsure.
217 config KS8695_WATCHDOG
218 tristate "KS8695 watchdog"
219 depends on ARCH_KS8695
221 Watchdog timer embedded into KS8695 processor. This will reboot your
222 system when the timeout is reached.
224 config HAVE_S3C2410_WATCHDOG
227 This will include watchdog timer support for Samsung SoCs. If
228 you want to include watchdog support for any machine, kindly
229 select this in the respective mach-XXXX/Kconfig file.
231 config S3C2410_WATCHDOG
232 tristate "S3C2410 Watchdog"
233 depends on HAVE_S3C2410_WATCHDOG
235 select MFD_SYSCON if ARCH_EXYNOS5
237 Watchdog timer block in the Samsung SoCs. This will reboot
238 the system when the timer expires with the watchdog enabled.
240 The driver is limited by the speed of the system's PCLK
241 signal, so with reasonably fast systems (PCLK around 50-66MHz)
242 then watchdog intervals of over approximately 20seconds are
245 The driver can be built as a module by choosing M, and will
246 be called s3c2410_wdt
248 config SA1100_WATCHDOG
249 tristate "SA1100/PXA2xx watchdog"
250 depends on ARCH_SA1100 || ARCH_PXA
252 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
253 reboot your system when timeout is reached.
255 NOTE: once enabled, this timer cannot be disabled.
257 To compile this driver as a module, choose M here: the
258 module will be called sa1100_wdt.
261 tristate "Synopsys DesignWare watchdog"
264 Say Y here if to include support for the Synopsys DesignWare
265 watchdog timer found in many chips.
266 To compile this driver as a module, choose M here: the
267 module will be called dw_wdt.
269 config EP93XX_WATCHDOG
270 tristate "EP93xx Watchdog"
271 depends on ARCH_EP93XX
274 Say Y here if to include support for the watchdog timer
275 embedded in the Cirrus Logic EP93xx family of devices.
277 To compile this driver as a module, choose M here: the
278 module will be called ep93xx_wdt.
281 tristate "OMAP Watchdog"
282 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
285 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
286 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
288 config PNX4008_WATCHDOG
289 tristate "LPC32XX Watchdog"
290 depends on ARCH_LPC32XX
293 Say Y here if to include support for the watchdog timer
294 in the LPC32XX processor.
295 This driver can be built as a module by choosing M. The module
296 will be called pnx4008_wdt.
298 Say N if you are unsure.
301 tristate "IOP Watchdog"
302 depends on ARCH_IOP13XX
303 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
305 Say Y here if to include support for the watchdog timer
306 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
307 be built as a module by choosing M. The module will
310 Note: The IOP13XX watchdog does an Internal Bus Reset which will
311 affect both cores and the peripherals of the IOP. The ATU-X
312 and/or ATUe configuration registers will remain intact, but if
313 operating as an Root Complex and/or Central Resource, the PCI-X
314 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
316 config DAVINCI_WATCHDOG
317 tristate "DaVinci watchdog"
318 depends on ARCH_DAVINCI || ARCH_KEYSTONE
321 Say Y here if to include support for the watchdog timer
322 in the DaVinci DM644x/DM646x or Keystone processors.
323 To compile this driver as a module, choose M here: the
324 module will be called davinci_wdt.
326 NOTE: once enabled, this timer cannot be disabled.
327 Say N if you are unsure.
329 config ORION_WATCHDOG
330 tristate "Orion watchdog"
331 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU
334 Say Y here if to include support for the watchdog timer
335 in the Marvell Orion5x and Kirkwood ARM SoCs.
336 To compile this driver as a module, choose M here: the
337 module will be called orion_wdt.
339 config RN5T618_WATCHDOG
340 tristate "Ricoh RN5T618 watchdog"
341 depends on MFD_RN5T618
344 If you say yes here you get support for watchdog on the Ricoh
347 This driver can also be built as a module. If so, the module
348 will be called rn5t618_wdt.
350 config SUNXI_WATCHDOG
351 tristate "Allwinner SoCs watchdog support"
352 depends on ARCH_SUNXI
355 Say Y here to include support for the watchdog timer
357 To compile this driver as a module, choose M here: the
358 module will be called sunxi_wdt.
360 config COH901327_WATCHDOG
361 bool "ST-Ericsson COH 901 327 watchdog"
363 default y if MACH_U300
366 Say Y here to include Watchdog timer support for the
367 watchdog embedded into the ST-Ericsson U300 series platforms.
368 This watchdog is used to reset the system and thus cannot be
369 compiled as a module.
371 config TWL4030_WATCHDOG
372 tristate "TWL4030 Watchdog"
373 depends on TWL4030_CORE
376 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
377 watchdog timer support for TWL4030 chips.
379 config STMP3XXX_RTC_WATCHDOG
380 tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
381 depends on RTC_DRV_STMP
384 Say Y here to include support for the watchdog timer inside
385 the RTC for the STMP37XX/378X or i.MX23/28 SoC.
386 To compile this driver as a module, choose M here: the
387 module will be called stmp3xxx_rtc_wdt.
389 config NUC900_WATCHDOG
390 tristate "Nuvoton NUC900 watchdog"
391 depends on ARCH_W90X900
393 Say Y here if to include support for the watchdog timer
394 for the Nuvoton NUC900 series SoCs.
395 To compile this driver as a module, choose M here: the
396 module will be called nuc900_wdt.
398 config TS72XX_WATCHDOG
399 tristate "TS-72XX SBC Watchdog"
400 depends on MACH_TS72XX
402 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
403 watchdog timer implemented in a external CPLD chip. Say Y here
404 if you want to support for the watchdog timer on TS-72XX boards.
406 To compile this driver as a module, choose M here: the
407 module will be called ts72xx_wdt.
409 config MAX63XX_WATCHDOG
410 tristate "Max63xx watchdog"
414 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
417 tristate "IMX2+ Watchdog"
422 This is the driver for the hardware watchdog
423 on the Freescale IMX2 and later processors.
424 If you have one of these processors and wish to have
425 watchdog support enabled, say Y, otherwise say N.
427 To compile this driver as a module, choose M here: the
428 module will be called imx2_wdt.
430 config UX500_WATCHDOG
431 tristate "ST-Ericsson Ux500 watchdog"
432 depends on MFD_DB8500_PRCMU
436 Say Y here to include Watchdog timer support for the watchdog
437 existing in the prcmu of ST-Ericsson Ux500 series platforms.
439 To compile this driver as a module, choose M here: the
440 module will be called ux500_wdt.
443 tristate "Retu watchdog"
447 Retu watchdog driver for Nokia Internet Tablets (770, N800,
448 N810). At least on N800 the watchdog cannot be disabled, so
449 this driver is essential and you should enable it.
451 To compile this driver as a module, choose M here: the
452 module will be called retu_wdt.
455 tristate "MOXART watchdog"
456 depends on ARCH_MOXART
458 Say Y here to include Watchdog timer support for the watchdog
459 existing on the MOXA ART SoC series platforms.
461 To compile this driver as a module, choose M here: the
462 module will be called moxart_wdt.
464 config SIRFSOC_WATCHDOG
465 tristate "SiRFSOC watchdog"
470 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
471 the watchdog triggers the system will be reset.
473 config ST_LPC_WATCHDOG
474 tristate "STMicroelectronics LPC Watchdog"
479 Say Y here to include STMicroelectronics Low Power Controller
480 (LPC) based Watchdog timer support.
482 To compile this driver as a module, choose M here: the
483 module will be called st_lpc_wdt.
485 config TEGRA_WATCHDOG
486 tristate "Tegra watchdog"
487 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
490 Say Y here to include support for the watchdog timer
491 embedded in NVIDIA Tegra SoCs.
493 To compile this driver as a module, choose M here: the
494 module will be called tegra_wdt.
497 tristate "QCOM watchdog"
502 Say Y here to include Watchdog timer support for the watchdog found
503 on QCOM chipsets. Currently supported targets are the MSM8960,
504 APQ8064, and IPQ8064.
506 To compile this driver as a module, choose M here: the
507 module will be called qcom_wdt.
509 config MESON_WATCHDOG
510 tristate "Amlogic Meson SoCs watchdog support"
511 depends on ARCH_MESON
514 Say Y here to include support for the watchdog timer
515 in Amlogic Meson SoCs.
516 To compile this driver as a module, choose M here: the
517 module will be called meson_wdt.
519 config MEDIATEK_WATCHDOG
520 tristate "Mediatek SoCs watchdog support"
521 depends on ARCH_MEDIATEK
524 Say Y here to include support for the watchdog timer
526 To compile this driver as a module, choose M here: the
527 module will be called mtk_wdt.
529 config DIGICOLOR_WATCHDOG
530 tristate "Conexant Digicolor SoCs watchdog support"
531 depends on ARCH_DIGICOLOR
534 Say Y here to include support for the watchdog timer
535 in Conexant Digicolor SoCs.
536 To compile this driver as a module, choose M here: the
537 module will be called digicolor_wdt.
541 config AT32AP700X_WDT
542 tristate "AT32AP700x watchdog"
543 depends on CPU_AT32AP700X
545 Watchdog timer embedded into AT32AP700x devices. This will reboot
546 your system when the timeout is reached.
548 # BLACKFIN Architecture
551 tristate "Blackfin On-Chip Watchdog Timer"
554 If you say yes here you will get support for the Blackfin On-Chip
555 Watchdog Timer. If you have one of these processors and wish to
556 have watchdog support enabled, say Y, otherwise say N.
558 To compile this driver as a module, choose M here: the
559 module will be called bfin_wdt.
565 # X86 (i386 + ia64 + x86_64) Architecture
568 tristate "Acquire SBC Watchdog Timer"
571 This is the driver for the hardware watchdog on Single Board
572 Computers produced by Acquire Inc (and others). 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 To compile this driver as a module, choose M here: the
577 module will be called acquirewdt.
579 Most people will say N.
582 tristate "Advantech SBC Watchdog Timer"
585 If you are configuring a Linux kernel for the Advantech single-board
586 computer, say `Y' here to support its built-in watchdog timer
587 feature. More information can be found at
588 <http://www.advantech.com.tw/products/>
591 tristate "ALi M1535 PMU Watchdog Timer"
592 depends on X86 && PCI
594 This is the driver for the hardware watchdog on the ALi M1535 PMU.
596 To compile this driver as a module, choose M here: the
597 module will be called alim1535_wdt.
599 Most people will say N.
602 tristate "ALi M7101 PMU Computer Watchdog"
605 This is the driver for the hardware watchdog on the ALi M7101 PMU
606 as used in the x86 Cobalt servers and also found in some
607 SPARC Netra servers too.
609 To compile this driver as a module, choose M here: the
610 module will be called alim7101_wdt.
612 Most people will say N.
615 tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
618 This is the driver for the hardware watchdog on the Fintek
619 F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
621 You can compile this driver directly into the kernel, or use
622 it as a module. The module will be called f71808e_wdt.
625 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
626 depends on X86 && PCI
628 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
629 (Total Cost of Ownership) timer is a watchdog timer that will reboot
630 the machine after its expiration. The expiration time can be
631 configured with the "heartbeat" parameter.
633 To compile this driver as a module, choose M here: the
634 module will be called sp5100_tco.
637 tristate "AMD Geode CS5535/CS5536 Watchdog"
638 depends on CS5535_MFGPT
640 This driver enables a watchdog capability built into the
641 CS5535/CS5536 companion chips for the AMD Geode GX and LX
642 processors. This watchdog watches your kernel to make sure
643 it doesn't freeze, and if it does, it reboots your computer after
644 a certain amount of time.
646 You can compile this driver directly into the kernel, or use
647 it as a module. The module will be called geodewdt.
650 tristate "AMD Elan SC520 processor Watchdog"
653 This is the driver for the hardware watchdog built in to the
654 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
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 You can compile this driver directly into the kernel, or use
660 it as a module. The module will be called sc520_wdt.
662 config SBC_FITPC2_WATCHDOG
663 tristate "Compulab SBC-FITPC2 watchdog"
666 This is the driver for the built-in watchdog timer on the fit-PC2,
667 fit-PC2i, CM-iAM single-board computers made by Compulab.
669 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
670 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
672 Entering BIOS setup temporary disables watchdog operation regardless to current state,
673 so system will not be restarted while user in BIOS setup.
675 Once watchdog was enabled the system will be restarted every
676 "Watchdog Timer Value" period, so to prevent it user can restart or
677 disable the watchdog.
679 To compile this driver as a module, choose M here: the
680 module will be called sbc_fitpc2_wdt.
682 Most people will say N.
685 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
688 Enable support for the watchdog timer on the Eurotech CPU-1220 and
689 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
690 information are at <http://www.eurotech.it/>.
693 tristate "IB700 SBC Watchdog Timer"
696 This is the driver for the hardware watchdog on the IB700 Single
697 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
698 simply watches your kernel to make sure it doesn't freeze, and if
699 it does, it reboots your computer after a certain amount of time.
701 This driver is like the WDT501 driver but for slightly different hardware.
703 To compile this driver as a module, choose M here: the
704 module will be called ib700wdt.
706 Most people will say N.
709 tristate "IBM Automatic Server Restart"
712 This is the driver for the IBM Automatic Server Restart watchdog
713 timer built-in into some eServer xSeries machines.
715 To compile this driver as a module, choose M here: the
716 module will be called ibmasr.
719 tristate "ICP Single Board Computer Watchdog Timer"
722 This is a driver for the hardware watchdog on the ICP Single
723 Board Computer. This driver is working on (at least) the following
724 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
726 To compile this driver as a module, choose M here: the
727 module will be called wafer5823wdt.
730 tristate "Intel 6300ESB Timer/Watchdog"
733 Hardware driver for the watchdog timer built into the Intel
734 6300ESB controller hub.
736 To compile this driver as a module, choose M here: the
737 module will be called i6300esb.
740 tristate "Intel Atom E6xx Watchdog"
741 depends on X86 && PCI
746 Hardware driver for the watchdog timer built into the Intel
747 Atom E6XX (TunnelCreek) processor.
749 To compile this driver as a module, choose M here: the
750 module will be called ie6xx_wdt.
752 config INTEL_SCU_WATCHDOG
753 bool "Intel SCU Watchdog for Mobile Platforms"
754 depends on X86_INTEL_MID
756 Hardware driver for the watchdog time built into the Intel SCU
757 for Intel Mobile Platforms.
759 To compile this driver as a module, choose M here.
761 config INTEL_MID_WATCHDOG
762 tristate "Intel MID Watchdog Timer"
763 depends on X86_INTEL_MID
766 Watchdog timer driver built into the Intel SCU for Intel MID
769 This driver currently supports only the watchdog evolution
770 implementation in SCU, available for Merrifield generation.
772 To compile this driver as a module, choose M here.
775 tristate "Intel TCO Timer/Watchdog"
776 depends on (X86 || IA64) && PCI
780 Hardware driver for the intel TCO timer based watchdog devices.
781 These drivers are included in the Intel 82801 I/O Controller
782 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
785 The TCO (Total Cost of Ownership) timer is a watchdog timer
786 that will reboot the machine after its second expiration. The
787 expiration time can be configured with the "heartbeat" parameter.
789 On some motherboards the driver may fail to reset the chipset's
790 NO_REBOOT flag which prevents the watchdog from rebooting the
791 machine. If this is the case you will get a kernel message like
792 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
794 To compile this driver as a module, choose M here: the
795 module will be called iTCO_wdt.
797 config ITCO_VENDOR_SUPPORT
798 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
801 Add vendor specific support to the intel TCO timer based watchdog
802 devices. At this moment we only have additional support for some
803 SuperMicro Inc. motherboards.
806 tristate "IT8712F (Smart Guardian) Watchdog Timer"
809 This is the driver for the built-in watchdog timer on the IT8712F
810 Super I/0 chipset used on many motherboards.
812 If the driver does not work, then make sure that the game port in
815 To compile this driver as a module, choose M here: the
816 module will be called it8712f_wdt.
819 tristate "IT87 Watchdog Timer"
822 This is the driver for the hardware watchdog on the ITE IT8702,
823 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728
826 If the driver does not work, then make sure that the game port in
829 This watchdog simply watches your kernel to make sure it doesn't
830 freeze, and if it does, it reboots your computer after a certain
833 To compile this driver as a module, choose M here: the module will
837 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
838 depends on X86 && PCI
840 A software monitoring watchdog and NMI sourcing driver. This driver
841 will detect lockups and provide a stack trace. This is a driver that
842 will only load on an HP ProLiant system with a minimum of iLO2 support.
843 To compile this driver as a module, choose M here: the module will be
847 tristate "Kontron COM Watchdog Timer"
848 depends on MFD_KEMPLD
851 Support for the PLD watchdog on some Kontron ETX and COMexpress
854 This driver can also be built as a module. If so, the module will be
857 config HPWDT_NMI_DECODING
858 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
859 depends on HP_WATCHDOG
862 When an NMI occurs this feature will make the necessary BIOS calls to
863 log the cause of the NMI.
866 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
869 This is a driver for National Semiconductor PC87307/PC97307 hardware
870 watchdog cards as found on the SC1200. This watchdog is mainly used
871 for power management purposes and can be used to power down the device
872 during inactivity periods (includes interrupt activity monitoring).
874 To compile this driver as a module, choose M here: the
875 module will be called sc1200wdt.
877 Most people will say N.
880 tristate "National Semiconductor SCx200 Watchdog"
881 depends on SCx200 && PCI
883 Enable the built-in watchdog timer support on the National
884 Semiconductor SCx200 processors.
886 If compiled as a module, it will be called scx200_wdt.
889 tristate "NS PC87413 watchdog"
892 This is the driver for the hardware watchdog on the PC87413 chipset
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 pc87413_wdt.
900 Most people will say N.
903 tristate "nVidia TCO Timer/Watchdog"
904 depends on X86 && PCI
906 Hardware driver for the TCO timer built into the nVidia Hub family
907 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
908 watchdog timer that will reboot the machine after its second
909 expiration. The expiration time can be configured with the
910 "heartbeat" parameter.
912 On some motherboards the driver may fail to reset the chipset's
913 NO_REBOOT flag which prevents the watchdog from rebooting the
914 machine. If this is the case you will get a kernel message like
915 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
917 To compile this driver as a module, choose M here: the
918 module will be called nv_tco.
921 tristate "RDC R-321x SoC watchdog"
922 depends on X86_RDC321X
924 This is the driver for the built in hardware watchdog
925 in the RDC R-321x SoC.
927 To compile this driver as a module, choose M here: the
928 module will be called rdc321x_wdt.
931 tristate "SBC-60XX Watchdog Timer"
934 This driver can be used with the watchdog timer found on some
935 single board computers, namely the 6010 PII based computer.
936 It may well work with other cards. It reads port 0x443 to enable
937 and re-set the watchdog timer, and reads port 0x45 to disable
938 the watchdog. If you have a card that behave in similar ways,
939 you can probably make this driver work with your card as well.
941 You can compile this driver directly into the kernel, or use
942 it as a module. The module will be called sbc60xxwdt.
945 tristate "SBC8360 Watchdog Timer"
949 This is the driver for the hardware watchdog on the SBC8360 Single
950 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
952 To compile this driver as a module, choose M here: the
953 module will be called sbc8360.
955 Most people will say N.
958 tristate "SBC Nano 7240 Watchdog Timer"
959 depends on X86_32 && !UML
961 This is the driver for the hardware watchdog found on the IEI
962 single board computers EPIC Nano 7240 (and likely others). This
963 watchdog simply watches your kernel to make sure it doesn't freeze,
964 and if it does, it reboots your computer after a certain amount of
967 To compile this driver as a module, choose M here: the
968 module will be called sbc7240_wdt.
971 tristate "SMA CPU5 Watchdog"
975 To compile this driver as a module, choose M here: the
976 module will be called cpu5wdt.
978 config SMSC_SCH311X_WDT
979 tristate "SMSC SCH311X Watchdog Timer"
982 This is the driver for the hardware watchdog timer on the
983 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
984 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
987 To compile this driver as a module, choose M here: the
988 module will be called sch311x_wdt.
990 config SMSC37B787_WDT
991 tristate "Winbond SMsC37B787 Watchdog Timer"
994 This is the driver for the hardware watchdog component on the
995 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
996 from Vision Systems and maybe others.
998 This watchdog simply watches your kernel to make sure it doesn't
999 freeze, and if it does, it reboots your computer after a certain
1002 Usually a userspace daemon will notify the kernel WDT driver that
1003 userspace is still alive, at regular intervals.
1005 To compile this driver as a module, choose M here: the
1006 module will be called smsc37b787_wdt.
1008 Most people will say N.
1011 tristate "VIA Watchdog Timer"
1012 depends on X86 && PCI
1013 select WATCHDOG_CORE
1015 This is the driver for the hardware watchdog timer on VIA
1016 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1018 To compile this driver as a module, choose M here; the module
1019 will be called via_wdt.
1021 Most people will say N.
1024 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1026 select WATCHDOG_CORE
1028 This is the driver for the hardware watchdog on the following
1030 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1042 This watchdog simply watches your kernel to make sure it doesn't
1043 freeze, and if it does, it reboots your computer after a certain
1046 To compile this driver as a module, choose M here: the
1047 module will be called w83627hf_wdt.
1049 Most people will say N.
1052 tristate "W83877F (EMACS) Watchdog Timer"
1055 This is the driver for the hardware watchdog on the W83877F chipset
1056 as used in EMACS PC-104 motherboards (and likely others). This
1057 watchdog simply watches your kernel to make sure it doesn't freeze,
1058 and if it does, it reboots your computer after a certain amount of
1061 To compile this driver as a module, choose M here: the
1062 module will be called w83877f_wdt.
1064 Most people will say N.
1067 tristate "W83977F (PCM-5335) Watchdog Timer"
1070 This is the driver for the hardware watchdog on the W83977F I/O chip
1071 as used in AAEON's PCM-5335 SBC (and likely others). This
1072 watchdog simply watches your kernel to make sure it doesn't freeze,
1073 and if it does, it reboots your computer after a certain amount of
1076 To compile this driver as a module, choose M here: the
1077 module will be called w83977f_wdt.
1080 tristate "ZF MachZ Watchdog"
1083 If you are using a ZF Micro MachZ processor, say Y here, otherwise
1084 N. This is the driver for the watchdog timer built-in on that
1085 processor using ZF-Logic interface. This watchdog simply watches
1086 your kernel to make sure it doesn't freeze, and if it does, it
1087 reboots your computer after a certain amount of time.
1089 To compile this driver as a module, choose M here: the
1090 module will be called machzwd.
1092 config SBC_EPX_C3_WATCHDOG
1093 tristate "Winsystems SBC EPX-C3 watchdog"
1096 This is the driver for the built-in watchdog timer on the EPX-C3
1097 Single-board computer made by Winsystems, Inc.
1099 *Note*: This hardware watchdog is not probeable and thus there
1100 is no way to know if writing to its IO address will corrupt
1101 your system or have any real effect. The only way to be sure
1102 that this driver does what you want is to make sure you
1103 are running it on an EPX-C3 from Winsystems with the watchdog
1104 timer at IO address 0x1ee and 0x1ef. It will write to both those
1105 IO ports. Basically, the assumption is made that if you compile
1106 this driver into your kernel and/or load it as a module, that you
1107 know what you are doing and that you are in fact running on an
1110 To compile this driver as a module, choose M here: the
1111 module will be called sbc_epx_c3.
1117 config M54xx_WATCHDOG
1118 tristate "MCF54xx watchdog support"
1121 To compile this driver as a module, choose M here: the
1122 module will be called m54xx_wdt.
1124 # MicroBlaze Architecture
1129 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1132 Hardware driver for the built-in watchdog timer on the Atheros
1133 AR71XX/AR724X/AR913X SoCs.
1136 tristate "Broadcom BCM47xx Watchdog Timer"
1137 depends on BCM47XX || ARCH_BCM_5301X
1138 select WATCHDOG_CORE
1140 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1143 tristate "IDT RC32434 SoC Watchdog Timer"
1144 depends on MIKROTIK_RB532
1146 Hardware driver for the IDT RC32434 SoC built-in
1149 To compile this driver as a module, choose M here: the
1150 module will be called rc32434_wdt.
1153 tristate "Indy/I2 Hardware Watchdog"
1154 depends on SGI_HAS_INDYDOG
1156 Hardware driver for the Indy's/I2's watchdog. This is a
1157 watchdog timer that will reboot the machine after a 60 second
1158 timer expired and no process has written to /dev/watchdog during
1162 tristate "Ingenic jz4740 SoC hardware watchdog"
1163 depends on MACH_JZ4740
1164 select WATCHDOG_CORE
1166 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1169 tristate "MTX-1 Hardware Watchdog"
1170 depends on MIPS_MTX1
1172 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1173 will reboot the machine after a 100 seconds timer expired.
1176 tristate "PNX833x Hardware Watchdog"
1177 depends on SOC_PNX8335
1179 Hardware driver for the PNX833x's watchdog. This is a
1180 watchdog timer that will reboot the machine after a programmable
1181 timer has expired and no process has written to /dev/watchdog during
1185 tristate "Sibyte SoC hardware watchdog"
1188 Watchdog driver for the built in watchdog hardware in Sibyte
1189 SoC processors. There are apparently two watchdog timers
1190 on such processors; this driver supports only the first one,
1191 because currently Linux only supports exporting one watchdog
1194 To compile this driver as a loadable module, choose M here.
1195 The module will be called sb_wdog.
1198 tristate "TI AR7 Watchdog Timer"
1201 Hardware driver for the TI AR7 Watchdog Timer.
1204 tristate "Toshiba TXx9 Watchdog Timer"
1205 depends on CPU_TX39XX || CPU_TX49XX
1206 select WATCHDOG_CORE
1208 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1211 tristate "Cavium OCTEON SOC family Watchdog Timer"
1212 depends on CAVIUM_OCTEON_SOC
1214 select WATCHDOG_CORE
1215 select EXPORT_UASM if OCTEON_WDT = m
1217 Hardware driver for OCTEON's on chip watchdog timer.
1218 Enables the watchdog for all cores running Linux. It
1219 installs a NMI handler and pokes the watchdog based on an
1220 interrupt. On first expiration of the watchdog, the
1221 interrupt handler pokes it. The second expiration causes an
1222 NMI that prints a message. The third expiration causes a
1225 When userspace has /dev/watchdog open, no poking is done
1226 from the first interrupt, it is then only poked when the
1230 tristate "Broadcom BCM63xx hardware watchdog"
1233 Watchdog driver for the built in watchdog hardware in Broadcom
1236 To compile this driver as a loadable module, choose M here.
1237 The module will be called bcm63xx_wdt.
1240 tristate "Broadcom BCM2835 hardware watchdog"
1241 depends on ARCH_BCM2835
1242 select WATCHDOG_CORE
1244 Watchdog driver for the built in watchdog hardware in Broadcom
1247 To compile this driver as a loadable module, choose M here.
1248 The module will be called bcm2835_wdt.
1251 tristate "BCM Kona Watchdog"
1252 depends on ARCH_BCM_MOBILE
1253 select WATCHDOG_CORE
1255 Support for the watchdog timer on the following Broadcom BCM281xx
1256 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1259 Say 'Y' or 'M' here to enable the driver. The module will be called
1262 config BCM_KONA_WDT_DEBUG
1263 bool "DEBUGFS support for BCM Kona Watchdog"
1264 depends on BCM_KONA_WDT
1266 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1267 access to the driver's internal data structures as well as watchdog
1268 timer hardware registres.
1270 If in doubt, say 'N'.
1273 tristate "Imagination Technologies PDC Watchdog Timer"
1274 depends on HAS_IOMEM
1275 depends on METAG || MIPS || COMPILE_TEST
1277 Driver for Imagination Technologies PowerDown Controller
1280 To compile this driver as a loadable module, choose M here.
1281 The module will be called imgpdc_wdt.
1284 tristate "Lantiq SoC watchdog"
1287 Hardware driver for the Lantiq SoC Watchdog Timer.
1290 tristate "Ralink SoC watchdog"
1291 select WATCHDOG_CORE
1294 Hardware driver for the Ralink SoC Watchdog Timer.
1296 # PARISC Architecture
1298 # POWERPC Architecture
1301 tristate "GE Watchdog Timer"
1304 Watchdog timer found in a number of GE single board computers.
1307 bool "MPC52xx Watchdog Timer"
1308 depends on PPC_MPC52xx
1310 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1313 tristate "MPC8xxx Platform Watchdog Timer"
1314 depends on PPC_8xx || PPC_83xx || PPC_86xx
1315 select WATCHDOG_CORE
1317 This driver is for a SoC level watchdog that exists on some
1318 Freescale PowerPC processors. So far this driver supports:
1323 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1326 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1330 tristate "PIKA FPGA Watchdog"
1334 This enables the watchdog in the PIKA FPGA. Currently used on
1338 tristate "PowerPC Book-E Watchdog Timer"
1339 depends on BOOKE || 4xx
1340 select WATCHDOG_CORE
1342 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1343 MPC85xx SOCs and the IBM PowerPC 440.
1345 Please see Documentation/watchdog/watchdog-api.txt for
1348 config BOOKE_WDT_DEFAULT_TIMEOUT
1349 int "PowerPC Book-E Watchdog Timer Default Timeout"
1350 depends on BOOKE_WDT
1351 default 38 if PPC_FSL_BOOK3E
1352 range 0 63 if PPC_FSL_BOOK3E
1353 default 3 if !PPC_FSL_BOOK3E
1354 range 0 3 if !PPC_FSL_BOOK3E
1356 Select the default watchdog timer period to be used by the PowerPC
1357 Book-E watchdog driver. A watchdog "event" occurs when the bit
1358 position represented by this number transitions from zero to one.
1360 For Freescale Book-E processors, this is a number between 0 and 63.
1361 For other Book-E processors, this is a number between 0 and 3.
1363 The value can be overridden by the wdt_period command-line parameter.
1366 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1367 select WATCHDOG_CORE
1370 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1372 The driver can also be built as a module. If so, the module will be
1375 If unsure select N here.
1377 # PPC64 Architecture
1379 config WATCHDOG_RTAS
1380 tristate "RTAS watchdog"
1383 This driver adds watchdog support for the RTAS watchdog.
1385 To compile this driver as a module, choose M here. The module
1386 will be called wdrtas.
1390 config DIAG288_WATCHDOG
1391 tristate "System z diag288 Watchdog"
1393 select WATCHDOG_CORE
1395 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1396 provide a virtual watchdog timer to their guest that cause a
1397 user define Control Program command to be executed after a
1399 LPAR provides a very similar interface. This driver handles
1402 To compile this driver as a module, choose M here. The module
1403 will be called diag288_wdt.
1405 # SUPERH (sh + sh64) Architecture
1408 tristate "SuperH Watchdog"
1409 depends on SUPERH && (CPU_SH3 || CPU_SH4)
1410 select WATCHDOG_CORE
1412 This driver adds watchdog support for the integrated watchdog in the
1413 SuperH processors. If you have one of these processors and wish
1414 to have watchdog support enabled, say Y, otherwise say N.
1416 As a side note, saying Y here will automatically boost HZ to 1000
1417 so that the timer has a chance to clear the overflow counter. On
1418 slower systems (such as the SH-2 and SH-3) this will likely yield
1419 some performance issues. As such, the WDT should be avoided here
1420 unless it is absolutely necessary.
1422 To compile this driver as a module, choose M here: the
1423 module will be called shwdt.
1425 # SPARC Architecture
1427 # SPARC64 Architecture
1429 config WATCHDOG_CP1XXX
1430 tristate "CP1XXX Hardware Watchdog support"
1431 depends on SPARC64 && PCI
1433 This is the driver for the hardware watchdog timers present on
1434 Sun Microsystems CompactPCI models CP1400 and CP1500.
1436 To compile this driver as a module, choose M here: the
1437 module will be called cpwatchdog.
1439 If you do not have a CompactPCI model CP1400 or CP1500, or
1440 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1441 you should say N to this option.
1444 tristate "RIO Hardware Watchdog support"
1445 depends on SPARC64 && PCI
1447 Say Y here to support the hardware watchdog capability on Sun RIO
1448 machines. The watchdog timeout period is normally one minute but
1449 can be changed with a boot-time parameter.
1451 # XTENSA Architecture
1456 tristate "Xen Watchdog support"
1459 Say Y here to support the hypervisor watchdog capability provided
1460 by Xen 4.0 and newer. The watchdog timeout period is normally one
1461 minute but can be changed with a boot-time parameter.
1464 tristate "UML watchdog"
1468 # ISA-based Watchdog Cards
1471 comment "ISA-based Watchdog Cards"
1475 tristate "Berkshire Products ISA-PC Watchdog"
1478 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1479 This card simply watches your kernel to make sure it doesn't freeze,
1480 and if it does, it reboots your computer after a certain amount of
1481 time. This driver is like the WDT501 driver but for different
1482 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1483 watchdog cards can be ordered from <http://www.berkprod.com/>.
1485 To compile this driver as a module, choose M here: the
1486 module will be called pcwd.
1488 Most people will say N.
1491 tristate "Mixcom Watchdog"
1494 This is a driver for the Mixcom hardware watchdog cards. This
1495 watchdog simply watches your kernel to make sure it doesn't freeze,
1496 and if it does, it reboots your computer after a certain amount of
1499 To compile this driver as a module, choose M here: the
1500 module will be called mixcomwd.
1502 Most people will say N.
1505 tristate "WDT Watchdog timer"
1508 If you have a WDT500P or WDT501P watchdog board, say Y here,
1509 otherwise N. It is not possible to probe for this board, which means
1510 that you have to inform the kernel about the IO port and IRQ that
1511 is needed (you can do this via the io and irq parameters)
1513 To compile this driver as a module, choose M here: the
1514 module will be called wdt.
1517 # PCI-based Watchdog Cards
1520 comment "PCI-based Watchdog Cards"
1523 config PCIPCWATCHDOG
1524 tristate "Berkshire Products PCI-PC Watchdog"
1527 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1528 This card simply watches your kernel to make sure it doesn't freeze,
1529 and if it does, it reboots your computer after a certain amount of
1530 time. The card can also monitor the internal temperature of the PC.
1531 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1533 To compile this driver as a module, choose M here: the
1534 module will be called pcwd_pci.
1536 Most people will say N.
1539 tristate "PCI-WDT500/501 Watchdog timer"
1542 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1544 If you have a PCI-WDT501 watchdog board then you can enable the
1545 temperature sensor by setting the type parameter to 501.
1547 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1548 can do this via the tachometer parameter. Only do this if you have a
1549 fan tachometer actually set up.
1551 To compile this driver as a module, choose M here: the
1552 module will be called wdt_pci.
1555 # USB-based Watchdog Cards
1558 comment "USB-based Watchdog Cards"
1561 config USBPCWATCHDOG
1562 tristate "Berkshire Products USB-PC Watchdog"
1565 This is the driver for the Berkshire Products USB-PC Watchdog card.
1566 This card simply watches your kernel to make sure it doesn't freeze,
1567 and if it does, it reboots your computer after a certain amount of
1568 time. The card can also monitor the internal temperature of the PC.
1569 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1571 To compile this driver as a module, choose M here: the
1572 module will be called pcwd_usb.
1574 Most people will say N.