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"
175 Say Y here if you want to include support for the watchdog
176 timer in the Xilinx Zynq.
178 config 21285_WATCHDOG
179 tristate "DC21285 watchdog"
180 depends on FOOTBRIDGE
182 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
183 here if you wish to use this. Alternatively say M to compile the
184 driver as a module, which will be called wdt285.
186 This driver does not work on all machines. In particular, early CATS
187 boards have hardware problems that will cause the machine to simply
188 lock up if the watchdog fires.
190 "If in doubt, leave it out" - say N.
193 tristate "NetWinder WB83C977 watchdog"
194 depends on FOOTBRIDGE && ARCH_NETWINDER
196 Say Y here to include support for the WB977 watchdog included in
197 NetWinder machines. Alternatively say M to compile the driver as
198 a module, which will be called wdt977.
200 Not sure? It's safe to say N.
202 config IXP4XX_WATCHDOG
203 tristate "IXP4xx Watchdog"
204 depends on ARCH_IXP4XX
206 Say Y here if to include support for the watchdog timer
207 in the Intel IXP4xx network processors. This driver can
208 be built as a module by choosing M. The module will
209 be called ixp4xx_wdt.
211 Note: The internal IXP4xx watchdog does a soft CPU reset
212 which doesn't reset any peripherals. There are circumstances
213 where the watchdog will fail to reset the board correctly
214 (e.g., if the boot ROM is in an unreadable state).
216 Say N if you are unsure.
218 config KS8695_WATCHDOG
219 tristate "KS8695 watchdog"
220 depends on ARCH_KS8695
222 Watchdog timer embedded into KS8695 processor. This will reboot your
223 system when the timeout is reached.
225 config HAVE_S3C2410_WATCHDOG
228 This will include watchdog timer support for Samsung SoCs. If
229 you want to include watchdog support for any machine, kindly
230 select this in the respective mach-XXXX/Kconfig file.
232 config S3C2410_WATCHDOG
233 tristate "S3C2410 Watchdog"
234 depends on HAVE_S3C2410_WATCHDOG
236 select MFD_SYSCON if ARCH_EXYNOS5
238 Watchdog timer block in the Samsung SoCs. This will reboot
239 the system when the timer expires with the watchdog enabled.
241 The driver is limited by the speed of the system's PCLK
242 signal, so with reasonably fast systems (PCLK around 50-66MHz)
243 then watchdog intervals of over approximately 20seconds are
246 The driver can be built as a module by choosing M, and will
247 be called s3c2410_wdt
249 config SA1100_WATCHDOG
250 tristate "SA1100/PXA2xx watchdog"
251 depends on ARCH_SA1100 || ARCH_PXA
253 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
254 reboot your system when timeout is reached.
256 NOTE: once enabled, this timer cannot be disabled.
258 To compile this driver as a module, choose M here: the
259 module will be called sa1100_wdt.
262 tristate "Synopsys DesignWare watchdog"
265 Say Y here if to include support for the Synopsys DesignWare
266 watchdog timer found in many chips.
267 To compile this driver as a module, choose M here: the
268 module will be called dw_wdt.
270 config EP93XX_WATCHDOG
271 tristate "EP93xx Watchdog"
272 depends on ARCH_EP93XX
275 Say Y here if to include support for the watchdog timer
276 embedded in the Cirrus Logic EP93xx family of devices.
278 To compile this driver as a module, choose M here: the
279 module will be called ep93xx_wdt.
282 tristate "OMAP Watchdog"
283 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
286 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
287 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
289 config PNX4008_WATCHDOG
290 tristate "LPC32XX Watchdog"
291 depends on ARCH_LPC32XX
294 Say Y here if to include support for the watchdog timer
295 in the LPC32XX processor.
296 This driver can be built as a module by choosing M. The module
297 will be called pnx4008_wdt.
299 Say N if you are unsure.
302 tristate "IOP Watchdog"
303 depends on ARCH_IOP13XX
304 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
306 Say Y here if to include support for the watchdog timer
307 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
308 be built as a module by choosing M. The module will
311 Note: The IOP13XX watchdog does an Internal Bus Reset which will
312 affect both cores and the peripherals of the IOP. The ATU-X
313 and/or ATUe configuration registers will remain intact, but if
314 operating as an Root Complex and/or Central Resource, the PCI-X
315 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
317 config DAVINCI_WATCHDOG
318 tristate "DaVinci watchdog"
319 depends on ARCH_DAVINCI || ARCH_KEYSTONE
322 Say Y here if to include support for the watchdog timer
323 in the DaVinci DM644x/DM646x or Keystone processors.
324 To compile this driver as a module, choose M here: the
325 module will be called davinci_wdt.
327 NOTE: once enabled, this timer cannot be disabled.
328 Say N if you are unsure.
330 config ORION_WATCHDOG
331 tristate "Orion watchdog"
332 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU
335 Say Y here if to include support for the watchdog timer
336 in the Marvell Orion5x and Kirkwood ARM SoCs.
337 To compile this driver as a module, choose M here: the
338 module will be called orion_wdt.
340 config RN5T618_WATCHDOG
341 tristate "Ricoh RN5T618 watchdog"
342 depends on MFD_RN5T618
345 If you say yes here you get support for watchdog on the Ricoh
348 This driver can also be built as a module. If so, the module
349 will be called rn5t618_wdt.
351 config SUNXI_WATCHDOG
352 tristate "Allwinner SoCs watchdog support"
353 depends on ARCH_SUNXI
356 Say Y here to include support for the watchdog timer
358 To compile this driver as a module, choose M here: the
359 module will be called sunxi_wdt.
361 config COH901327_WATCHDOG
362 bool "ST-Ericsson COH 901 327 watchdog"
364 default y if MACH_U300
367 Say Y here to include Watchdog timer support for the
368 watchdog embedded into the ST-Ericsson U300 series platforms.
369 This watchdog is used to reset the system and thus cannot be
370 compiled as a module.
372 config TWL4030_WATCHDOG
373 tristate "TWL4030 Watchdog"
374 depends on TWL4030_CORE
377 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
378 watchdog timer support for TWL4030 chips.
380 config STMP3XXX_RTC_WATCHDOG
381 tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
382 depends on RTC_DRV_STMP
385 Say Y here to include support for the watchdog timer inside
386 the RTC for the STMP37XX/378X or i.MX23/28 SoC.
387 To compile this driver as a module, choose M here: the
388 module will be called stmp3xxx_rtc_wdt.
390 config NUC900_WATCHDOG
391 tristate "Nuvoton NUC900 watchdog"
392 depends on ARCH_W90X900
394 Say Y here if to include support for the watchdog timer
395 for the Nuvoton NUC900 series SoCs.
396 To compile this driver as a module, choose M here: the
397 module will be called nuc900_wdt.
399 config TS72XX_WATCHDOG
400 tristate "TS-72XX SBC Watchdog"
401 depends on MACH_TS72XX
403 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
404 watchdog timer implemented in a external CPLD chip. Say Y here
405 if you want to support for the watchdog timer on TS-72XX boards.
407 To compile this driver as a module, choose M here: the
408 module will be called ts72xx_wdt.
410 config MAX63XX_WATCHDOG
411 tristate "Max63xx watchdog"
415 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
418 tristate "IMX2+ Watchdog"
423 This is the driver for the hardware watchdog
424 on the Freescale IMX2 and later processors.
425 If you have one of these processors and wish to have
426 watchdog support enabled, say Y, otherwise say N.
428 To compile this driver as a module, choose M here: the
429 module will be called imx2_wdt.
431 config UX500_WATCHDOG
432 tristate "ST-Ericsson Ux500 watchdog"
433 depends on MFD_DB8500_PRCMU
437 Say Y here to include Watchdog timer support for the watchdog
438 existing in the prcmu of ST-Ericsson Ux500 series platforms.
440 To compile this driver as a module, choose M here: the
441 module will be called ux500_wdt.
444 tristate "Retu watchdog"
448 Retu watchdog driver for Nokia Internet Tablets (770, N800,
449 N810). At least on N800 the watchdog cannot be disabled, so
450 this driver is essential and you should enable it.
452 To compile this driver as a module, choose M here: the
453 module will be called retu_wdt.
456 tristate "MOXART watchdog"
457 depends on ARCH_MOXART
459 Say Y here to include Watchdog timer support for the watchdog
460 existing on the MOXA ART SoC series platforms.
462 To compile this driver as a module, choose M here: the
463 module will be called moxart_wdt.
465 config SIRFSOC_WATCHDOG
466 tristate "SiRFSOC watchdog"
471 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
472 the watchdog triggers the system will be reset.
474 config ST_LPC_WATCHDOG
475 tristate "STMicroelectronics LPC Watchdog"
480 Say Y here to include STMicroelectronics Low Power Controller
481 (LPC) based Watchdog timer support.
483 To compile this driver as a module, choose M here: the
484 module will be called st_lpc_wdt.
486 config TEGRA_WATCHDOG
487 tristate "Tegra watchdog"
488 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
491 Say Y here to include support for the watchdog timer
492 embedded in NVIDIA Tegra SoCs.
494 To compile this driver as a module, choose M here: the
495 module will be called tegra_wdt.
498 tristate "QCOM watchdog"
503 Say Y here to include Watchdog timer support for the watchdog found
504 on QCOM chipsets. Currently supported targets are the MSM8960,
505 APQ8064, and IPQ8064.
507 To compile this driver as a module, choose M here: the
508 module will be called qcom_wdt.
510 config MESON_WATCHDOG
511 tristate "Amlogic Meson SoCs watchdog support"
512 depends on ARCH_MESON
515 Say Y here to include support for the watchdog timer
516 in Amlogic Meson SoCs.
517 To compile this driver as a module, choose M here: the
518 module will be called meson_wdt.
520 config MEDIATEK_WATCHDOG
521 tristate "Mediatek SoCs watchdog support"
522 depends on ARCH_MEDIATEK
525 Say Y here to include support for the watchdog timer
527 To compile this driver as a module, choose M here: the
528 module will be called mtk_wdt.
530 config DIGICOLOR_WATCHDOG
531 tristate "Conexant Digicolor SoCs watchdog support"
532 depends on ARCH_DIGICOLOR
535 Say Y here to include support for the watchdog timer
536 in Conexant Digicolor SoCs.
537 To compile this driver as a module, choose M here: the
538 module will be called digicolor_wdt.
542 config AT32AP700X_WDT
543 tristate "AT32AP700x watchdog"
544 depends on CPU_AT32AP700X
546 Watchdog timer embedded into AT32AP700x devices. This will reboot
547 your system when the timeout is reached.
549 # BLACKFIN Architecture
552 tristate "Blackfin On-Chip Watchdog Timer"
555 If you say yes here you will get support for the Blackfin On-Chip
556 Watchdog Timer. If you have one of these processors and wish to
557 have watchdog support enabled, say Y, otherwise say N.
559 To compile this driver as a module, choose M here: the
560 module will be called bfin_wdt.
566 # X86 (i386 + ia64 + x86_64) Architecture
569 tristate "Acquire SBC Watchdog Timer"
572 This is the driver for the hardware watchdog on Single Board
573 Computers produced by Acquire Inc (and others). This watchdog
574 simply watches your kernel to make sure it doesn't freeze, and if
575 it does, it reboots your computer after a certain amount of time.
577 To compile this driver as a module, choose M here: the
578 module will be called acquirewdt.
580 Most people will say N.
583 tristate "Advantech SBC Watchdog Timer"
586 If you are configuring a Linux kernel for the Advantech single-board
587 computer, say `Y' here to support its built-in watchdog timer
588 feature. More information can be found at
589 <http://www.advantech.com.tw/products/>
592 tristate "ALi M1535 PMU Watchdog Timer"
593 depends on X86 && PCI
595 This is the driver for the hardware watchdog on the ALi M1535 PMU.
597 To compile this driver as a module, choose M here: the
598 module will be called alim1535_wdt.
600 Most people will say N.
603 tristate "ALi M7101 PMU Computer Watchdog"
606 This is the driver for the hardware watchdog on the ALi M7101 PMU
607 as used in the x86 Cobalt servers and also found in some
608 SPARC Netra servers too.
610 To compile this driver as a module, choose M here: the
611 module will be called alim7101_wdt.
613 Most people will say N.
616 tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
619 This is the driver for the hardware watchdog on the Fintek
620 F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
622 You can compile this driver directly into the kernel, or use
623 it as a module. The module will be called f71808e_wdt.
626 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
627 depends on X86 && PCI
629 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
630 (Total Cost of Ownership) timer is a watchdog timer that will reboot
631 the machine after its expiration. The expiration time can be
632 configured with the "heartbeat" parameter.
634 To compile this driver as a module, choose M here: the
635 module will be called sp5100_tco.
638 tristate "AMD Geode CS5535/CS5536 Watchdog"
639 depends on CS5535_MFGPT
641 This driver enables a watchdog capability built into the
642 CS5535/CS5536 companion chips for the AMD Geode GX and LX
643 processors. This watchdog watches your kernel to make sure
644 it doesn't freeze, and if it does, it reboots your computer after
645 a certain amount of time.
647 You can compile this driver directly into the kernel, or use
648 it as a module. The module will be called geodewdt.
651 tristate "AMD Elan SC520 processor Watchdog"
654 This is the driver for the hardware watchdog built in to the
655 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
656 This watchdog simply watches your kernel to make sure it doesn't
657 freeze, and if it does, it reboots your computer after a certain
660 You can compile this driver directly into the kernel, or use
661 it as a module. The module will be called sc520_wdt.
663 config SBC_FITPC2_WATCHDOG
664 tristate "Compulab SBC-FITPC2 watchdog"
667 This is the driver for the built-in watchdog timer on the fit-PC2,
668 fit-PC2i, CM-iAM single-board computers made by Compulab.
670 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
671 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
673 Entering BIOS setup temporary disables watchdog operation regardless to current state,
674 so system will not be restarted while user in BIOS setup.
676 Once watchdog was enabled the system will be restarted every
677 "Watchdog Timer Value" period, so to prevent it user can restart or
678 disable the watchdog.
680 To compile this driver as a module, choose M here: the
681 module will be called sbc_fitpc2_wdt.
683 Most people will say N.
686 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
689 Enable support for the watchdog timer on the Eurotech CPU-1220 and
690 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
691 information are at <http://www.eurotech.it/>.
694 tristate "IB700 SBC Watchdog Timer"
697 This is the driver for the hardware watchdog on the IB700 Single
698 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
699 simply watches your kernel to make sure it doesn't freeze, and if
700 it does, it reboots your computer after a certain amount of time.
702 This driver is like the WDT501 driver but for slightly different hardware.
704 To compile this driver as a module, choose M here: the
705 module will be called ib700wdt.
707 Most people will say N.
710 tristate "IBM Automatic Server Restart"
713 This is the driver for the IBM Automatic Server Restart watchdog
714 timer built-in into some eServer xSeries machines.
716 To compile this driver as a module, choose M here: the
717 module will be called ibmasr.
720 tristate "ICP Single Board Computer Watchdog Timer"
723 This is a driver for the hardware watchdog on the ICP Single
724 Board Computer. This driver is working on (at least) the following
725 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
727 To compile this driver as a module, choose M here: the
728 module will be called wafer5823wdt.
731 tristate "Intel 6300ESB Timer/Watchdog"
734 Hardware driver for the watchdog timer built into the Intel
735 6300ESB controller hub.
737 To compile this driver as a module, choose M here: the
738 module will be called i6300esb.
741 tristate "Intel Atom E6xx Watchdog"
742 depends on X86 && PCI
747 Hardware driver for the watchdog timer built into the Intel
748 Atom E6XX (TunnelCreek) processor.
750 To compile this driver as a module, choose M here: the
751 module will be called ie6xx_wdt.
753 config INTEL_SCU_WATCHDOG
754 bool "Intel SCU Watchdog for Mobile Platforms"
755 depends on X86_INTEL_MID
757 Hardware driver for the watchdog time built into the Intel SCU
758 for Intel Mobile Platforms.
760 To compile this driver as a module, choose M here.
762 config INTEL_MID_WATCHDOG
763 tristate "Intel MID Watchdog Timer"
764 depends on X86_INTEL_MID
767 Watchdog timer driver built into the Intel SCU for Intel MID
770 This driver currently supports only the watchdog evolution
771 implementation in SCU, available for Merrifield generation.
773 To compile this driver as a module, choose M here.
776 tristate "Intel TCO Timer/Watchdog"
777 depends on (X86 || IA64) && PCI
781 Hardware driver for the intel TCO timer based watchdog devices.
782 These drivers are included in the Intel 82801 I/O Controller
783 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
786 The TCO (Total Cost of Ownership) timer is a watchdog timer
787 that will reboot the machine after its second expiration. The
788 expiration time can be configured with the "heartbeat" parameter.
790 On some motherboards the driver may fail to reset the chipset's
791 NO_REBOOT flag which prevents the watchdog from rebooting the
792 machine. If this is the case you will get a kernel message like
793 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
795 To compile this driver as a module, choose M here: the
796 module will be called iTCO_wdt.
798 config ITCO_VENDOR_SUPPORT
799 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
802 Add vendor specific support to the intel TCO timer based watchdog
803 devices. At this moment we only have additional support for some
804 SuperMicro Inc. motherboards.
807 tristate "IT8712F (Smart Guardian) Watchdog Timer"
810 This is the driver for the built-in watchdog timer on the IT8712F
811 Super I/0 chipset used on many motherboards.
813 If the driver does not work, then make sure that the game port in
816 To compile this driver as a module, choose M here: the
817 module will be called it8712f_wdt.
820 tristate "IT87 Watchdog Timer"
823 This is the driver for the hardware watchdog on the ITE IT8702,
824 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728
827 If the driver does not work, then make sure that the game port in
830 This watchdog simply watches your kernel to make sure it doesn't
831 freeze, and if it does, it reboots your computer after a certain
834 To compile this driver as a module, choose M here: the module will
838 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
839 depends on X86 && PCI
841 A software monitoring watchdog and NMI sourcing driver. This driver
842 will detect lockups and provide a stack trace. This is a driver that
843 will only load on an HP ProLiant system with a minimum of iLO2 support.
844 To compile this driver as a module, choose M here: the module will be
848 tristate "Kontron COM Watchdog Timer"
849 depends on MFD_KEMPLD
852 Support for the PLD watchdog on some Kontron ETX and COMexpress
855 This driver can also be built as a module. If so, the module will be
858 config HPWDT_NMI_DECODING
859 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
860 depends on HP_WATCHDOG
863 When an NMI occurs this feature will make the necessary BIOS calls to
864 log the cause of the NMI.
867 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
870 This is a driver for National Semiconductor PC87307/PC97307 hardware
871 watchdog cards as found on the SC1200. This watchdog is mainly used
872 for power management purposes and can be used to power down the device
873 during inactivity periods (includes interrupt activity monitoring).
875 To compile this driver as a module, choose M here: the
876 module will be called sc1200wdt.
878 Most people will say N.
881 tristate "National Semiconductor SCx200 Watchdog"
882 depends on SCx200 && PCI
884 Enable the built-in watchdog timer support on the National
885 Semiconductor SCx200 processors.
887 If compiled as a module, it will be called scx200_wdt.
890 tristate "NS PC87413 watchdog"
893 This is the driver for the hardware watchdog on the PC87413 chipset
894 This watchdog simply watches your kernel to make sure it doesn't
895 freeze, and if it does, it reboots your computer after a certain
898 To compile this driver as a module, choose M here: the
899 module will be called pc87413_wdt.
901 Most people will say N.
904 tristate "nVidia TCO Timer/Watchdog"
905 depends on X86 && PCI
907 Hardware driver for the TCO timer built into the nVidia Hub family
908 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
909 watchdog timer that will reboot the machine after its second
910 expiration. The expiration time can be configured with the
911 "heartbeat" parameter.
913 On some motherboards the driver may fail to reset the chipset's
914 NO_REBOOT flag which prevents the watchdog from rebooting the
915 machine. If this is the case you will get a kernel message like
916 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
918 To compile this driver as a module, choose M here: the
919 module will be called nv_tco.
922 tristate "RDC R-321x SoC watchdog"
923 depends on X86_RDC321X
925 This is the driver for the built in hardware watchdog
926 in the RDC R-321x SoC.
928 To compile this driver as a module, choose M here: the
929 module will be called rdc321x_wdt.
932 tristate "SBC-60XX Watchdog Timer"
935 This driver can be used with the watchdog timer found on some
936 single board computers, namely the 6010 PII based computer.
937 It may well work with other cards. It reads port 0x443 to enable
938 and re-set the watchdog timer, and reads port 0x45 to disable
939 the watchdog. If you have a card that behave in similar ways,
940 you can probably make this driver work with your card as well.
942 You can compile this driver directly into the kernel, or use
943 it as a module. The module will be called sbc60xxwdt.
946 tristate "SBC8360 Watchdog Timer"
950 This is the driver for the hardware watchdog on the SBC8360 Single
951 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
953 To compile this driver as a module, choose M here: the
954 module will be called sbc8360.
956 Most people will say N.
959 tristate "SBC Nano 7240 Watchdog Timer"
960 depends on X86_32 && !UML
962 This is the driver for the hardware watchdog found on the IEI
963 single board computers EPIC Nano 7240 (and likely others). This
964 watchdog simply watches your kernel to make sure it doesn't freeze,
965 and if it does, it reboots your computer after a certain amount of
968 To compile this driver as a module, choose M here: the
969 module will be called sbc7240_wdt.
972 tristate "SMA CPU5 Watchdog"
976 To compile this driver as a module, choose M here: the
977 module will be called cpu5wdt.
979 config SMSC_SCH311X_WDT
980 tristate "SMSC SCH311X Watchdog Timer"
983 This is the driver for the hardware watchdog timer on the
984 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
985 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
988 To compile this driver as a module, choose M here: the
989 module will be called sch311x_wdt.
991 config SMSC37B787_WDT
992 tristate "Winbond SMsC37B787 Watchdog Timer"
995 This is the driver for the hardware watchdog component on the
996 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
997 from Vision Systems and maybe others.
999 This watchdog simply watches your kernel to make sure it doesn't
1000 freeze, and if it does, it reboots your computer after a certain
1003 Usually a userspace daemon will notify the kernel WDT driver that
1004 userspace is still alive, at regular intervals.
1006 To compile this driver as a module, choose M here: the
1007 module will be called smsc37b787_wdt.
1009 Most people will say N.
1012 tristate "VIA Watchdog Timer"
1013 depends on X86 && PCI
1014 select WATCHDOG_CORE
1016 This is the driver for the hardware watchdog timer on VIA
1017 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1019 To compile this driver as a module, choose M here; the module
1020 will be called via_wdt.
1022 Most people will say N.
1025 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1027 select WATCHDOG_CORE
1029 This is the driver for the hardware watchdog on the following
1031 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1043 This watchdog simply watches your kernel to make sure it doesn't
1044 freeze, and if it does, it reboots your computer after a certain
1047 To compile this driver as a module, choose M here: the
1048 module will be called w83627hf_wdt.
1050 Most people will say N.
1053 tristate "W83877F (EMACS) Watchdog Timer"
1056 This is the driver for the hardware watchdog on the W83877F chipset
1057 as used in EMACS PC-104 motherboards (and likely others). This
1058 watchdog simply watches your kernel to make sure it doesn't freeze,
1059 and if it does, it reboots your computer after a certain amount of
1062 To compile this driver as a module, choose M here: the
1063 module will be called w83877f_wdt.
1065 Most people will say N.
1068 tristate "W83977F (PCM-5335) Watchdog Timer"
1071 This is the driver for the hardware watchdog on the W83977F I/O chip
1072 as used in AAEON's PCM-5335 SBC (and likely others). This
1073 watchdog simply watches your kernel to make sure it doesn't freeze,
1074 and if it does, it reboots your computer after a certain amount of
1077 To compile this driver as a module, choose M here: the
1078 module will be called w83977f_wdt.
1081 tristate "ZF MachZ Watchdog"
1084 If you are using a ZF Micro MachZ processor, say Y here, otherwise
1085 N. This is the driver for the watchdog timer built-in on that
1086 processor using ZF-Logic interface. This watchdog simply watches
1087 your kernel to make sure it doesn't freeze, and if it does, it
1088 reboots your computer after a certain amount of time.
1090 To compile this driver as a module, choose M here: the
1091 module will be called machzwd.
1093 config SBC_EPX_C3_WATCHDOG
1094 tristate "Winsystems SBC EPX-C3 watchdog"
1097 This is the driver for the built-in watchdog timer on the EPX-C3
1098 Single-board computer made by Winsystems, Inc.
1100 *Note*: This hardware watchdog is not probeable and thus there
1101 is no way to know if writing to its IO address will corrupt
1102 your system or have any real effect. The only way to be sure
1103 that this driver does what you want is to make sure you
1104 are running it on an EPX-C3 from Winsystems with the watchdog
1105 timer at IO address 0x1ee and 0x1ef. It will write to both those
1106 IO ports. Basically, the assumption is made that if you compile
1107 this driver into your kernel and/or load it as a module, that you
1108 know what you are doing and that you are in fact running on an
1111 To compile this driver as a module, choose M here: the
1112 module will be called sbc_epx_c3.
1118 config M54xx_WATCHDOG
1119 tristate "MCF54xx watchdog support"
1122 To compile this driver as a module, choose M here: the
1123 module will be called m54xx_wdt.
1125 # MicroBlaze Architecture
1130 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1133 Hardware driver for the built-in watchdog timer on the Atheros
1134 AR71XX/AR724X/AR913X SoCs.
1137 tristate "Broadcom BCM47xx Watchdog Timer"
1138 depends on BCM47XX || ARCH_BCM_5301X
1139 select WATCHDOG_CORE
1141 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1144 tristate "IDT RC32434 SoC Watchdog Timer"
1145 depends on MIKROTIK_RB532
1147 Hardware driver for the IDT RC32434 SoC built-in
1150 To compile this driver as a module, choose M here: the
1151 module will be called rc32434_wdt.
1154 tristate "Indy/I2 Hardware Watchdog"
1155 depends on SGI_HAS_INDYDOG
1157 Hardware driver for the Indy's/I2's watchdog. This is a
1158 watchdog timer that will reboot the machine after a 60 second
1159 timer expired and no process has written to /dev/watchdog during
1163 tristate "Ingenic jz4740 SoC hardware watchdog"
1164 depends on MACH_JZ4740
1165 select WATCHDOG_CORE
1167 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1170 tristate "MTX-1 Hardware Watchdog"
1171 depends on MIPS_MTX1
1173 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1174 will reboot the machine after a 100 seconds timer expired.
1177 tristate "PNX833x Hardware Watchdog"
1178 depends on SOC_PNX8335
1180 Hardware driver for the PNX833x's watchdog. This is a
1181 watchdog timer that will reboot the machine after a programmable
1182 timer has expired and no process has written to /dev/watchdog during
1186 tristate "Sibyte SoC hardware watchdog"
1189 Watchdog driver for the built in watchdog hardware in Sibyte
1190 SoC processors. There are apparently two watchdog timers
1191 on such processors; this driver supports only the first one,
1192 because currently Linux only supports exporting one watchdog
1195 To compile this driver as a loadable module, choose M here.
1196 The module will be called sb_wdog.
1199 tristate "TI AR7 Watchdog Timer"
1202 Hardware driver for the TI AR7 Watchdog Timer.
1205 tristate "Toshiba TXx9 Watchdog Timer"
1206 depends on CPU_TX39XX || CPU_TX49XX
1207 select WATCHDOG_CORE
1209 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1212 tristate "Cavium OCTEON SOC family Watchdog Timer"
1213 depends on CAVIUM_OCTEON_SOC
1215 select WATCHDOG_CORE
1216 select EXPORT_UASM if OCTEON_WDT = m
1218 Hardware driver for OCTEON's on chip watchdog timer.
1219 Enables the watchdog for all cores running Linux. It
1220 installs a NMI handler and pokes the watchdog based on an
1221 interrupt. On first expiration of the watchdog, the
1222 interrupt handler pokes it. The second expiration causes an
1223 NMI that prints a message. The third expiration causes a
1226 When userspace has /dev/watchdog open, no poking is done
1227 from the first interrupt, it is then only poked when the
1231 tristate "Broadcom BCM63xx hardware watchdog"
1234 Watchdog driver for the built in watchdog hardware in Broadcom
1237 To compile this driver as a loadable module, choose M here.
1238 The module will be called bcm63xx_wdt.
1241 tristate "Broadcom BCM2835 hardware watchdog"
1242 depends on ARCH_BCM2835
1243 select WATCHDOG_CORE
1245 Watchdog driver for the built in watchdog hardware in Broadcom
1248 To compile this driver as a loadable module, choose M here.
1249 The module will be called bcm2835_wdt.
1252 tristate "BCM Kona Watchdog"
1253 depends on ARCH_BCM_MOBILE
1254 select WATCHDOG_CORE
1256 Support for the watchdog timer on the following Broadcom BCM281xx
1257 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1260 Say 'Y' or 'M' here to enable the driver. The module will be called
1263 config BCM_KONA_WDT_DEBUG
1264 bool "DEBUGFS support for BCM Kona Watchdog"
1265 depends on BCM_KONA_WDT
1267 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1268 access to the driver's internal data structures as well as watchdog
1269 timer hardware registres.
1271 If in doubt, say 'N'.
1274 tristate "Imagination Technologies PDC Watchdog Timer"
1275 depends on HAS_IOMEM
1276 depends on METAG || MIPS || COMPILE_TEST
1278 Driver for Imagination Technologies PowerDown Controller
1281 To compile this driver as a loadable module, choose M here.
1282 The module will be called imgpdc_wdt.
1285 tristate "Lantiq SoC watchdog"
1288 Hardware driver for the Lantiq SoC Watchdog Timer.
1291 tristate "Ralink SoC watchdog"
1292 select WATCHDOG_CORE
1295 Hardware driver for the Ralink SoC Watchdog Timer.
1297 # PARISC Architecture
1299 # POWERPC Architecture
1302 tristate "GE Watchdog Timer"
1305 Watchdog timer found in a number of GE single board computers.
1308 bool "MPC52xx Watchdog Timer"
1309 depends on PPC_MPC52xx
1311 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1314 tristate "MPC8xxx Platform Watchdog Timer"
1315 depends on PPC_8xx || PPC_83xx || PPC_86xx
1316 select WATCHDOG_CORE
1318 This driver is for a SoC level watchdog that exists on some
1319 Freescale PowerPC processors. So far this driver supports:
1324 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1327 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1331 tristate "PIKA FPGA Watchdog"
1335 This enables the watchdog in the PIKA FPGA. Currently used on
1339 tristate "PowerPC Book-E Watchdog Timer"
1340 depends on BOOKE || 4xx
1341 select WATCHDOG_CORE
1343 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1344 MPC85xx SOCs and the IBM PowerPC 440.
1346 Please see Documentation/watchdog/watchdog-api.txt for
1349 config BOOKE_WDT_DEFAULT_TIMEOUT
1350 int "PowerPC Book-E Watchdog Timer Default Timeout"
1351 depends on BOOKE_WDT
1352 default 38 if PPC_FSL_BOOK3E
1353 range 0 63 if PPC_FSL_BOOK3E
1354 default 3 if !PPC_FSL_BOOK3E
1355 range 0 3 if !PPC_FSL_BOOK3E
1357 Select the default watchdog timer period to be used by the PowerPC
1358 Book-E watchdog driver. A watchdog "event" occurs when the bit
1359 position represented by this number transitions from zero to one.
1361 For Freescale Book-E processors, this is a number between 0 and 63.
1362 For other Book-E processors, this is a number between 0 and 3.
1364 The value can be overridden by the wdt_period command-line parameter.
1367 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1368 select WATCHDOG_CORE
1371 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1373 The driver can also be built as a module. If so, the module will be
1376 If unsure select N here.
1378 # PPC64 Architecture
1380 config WATCHDOG_RTAS
1381 tristate "RTAS watchdog"
1384 This driver adds watchdog support for the RTAS watchdog.
1386 To compile this driver as a module, choose M here. The module
1387 will be called wdrtas.
1391 config DIAG288_WATCHDOG
1392 tristate "System z diag288 Watchdog"
1394 select WATCHDOG_CORE
1396 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1397 provide a virtual watchdog timer to their guest that cause a
1398 user define Control Program command to be executed after a
1400 LPAR provides a very similar interface. This driver handles
1403 To compile this driver as a module, choose M here. The module
1404 will be called diag288_wdt.
1406 # SUPERH (sh + sh64) Architecture
1409 tristate "SuperH Watchdog"
1410 depends on SUPERH && (CPU_SH3 || CPU_SH4)
1411 select WATCHDOG_CORE
1413 This driver adds watchdog support for the integrated watchdog in the
1414 SuperH processors. If you have one of these processors and wish
1415 to have watchdog support enabled, say Y, otherwise say N.
1417 As a side note, saying Y here will automatically boost HZ to 1000
1418 so that the timer has a chance to clear the overflow counter. On
1419 slower systems (such as the SH-2 and SH-3) this will likely yield
1420 some performance issues. As such, the WDT should be avoided here
1421 unless it is absolutely necessary.
1423 To compile this driver as a module, choose M here: the
1424 module will be called shwdt.
1426 # SPARC Architecture
1428 # SPARC64 Architecture
1430 config WATCHDOG_CP1XXX
1431 tristate "CP1XXX Hardware Watchdog support"
1432 depends on SPARC64 && PCI
1434 This is the driver for the hardware watchdog timers present on
1435 Sun Microsystems CompactPCI models CP1400 and CP1500.
1437 To compile this driver as a module, choose M here: the
1438 module will be called cpwatchdog.
1440 If you do not have a CompactPCI model CP1400 or CP1500, or
1441 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1442 you should say N to this option.
1445 tristate "RIO Hardware Watchdog support"
1446 depends on SPARC64 && PCI
1448 Say Y here to support the hardware watchdog capability on Sun RIO
1449 machines. The watchdog timeout period is normally one minute but
1450 can be changed with a boot-time parameter.
1452 # XTENSA Architecture
1457 tristate "Xen Watchdog support"
1460 Say Y here to support the hypervisor watchdog capability provided
1461 by Xen 4.0 and newer. The watchdog timeout period is normally one
1462 minute but can be changed with a boot-time parameter.
1465 tristate "UML watchdog"
1469 # ISA-based Watchdog Cards
1472 comment "ISA-based Watchdog Cards"
1476 tristate "Berkshire Products ISA-PC Watchdog"
1479 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1480 This card simply watches your kernel to make sure it doesn't freeze,
1481 and if it does, it reboots your computer after a certain amount of
1482 time. This driver is like the WDT501 driver but for different
1483 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1484 watchdog cards can be ordered from <http://www.berkprod.com/>.
1486 To compile this driver as a module, choose M here: the
1487 module will be called pcwd.
1489 Most people will say N.
1492 tristate "Mixcom Watchdog"
1495 This is a driver for the Mixcom hardware watchdog cards. This
1496 watchdog simply watches your kernel to make sure it doesn't freeze,
1497 and if it does, it reboots your computer after a certain amount of
1500 To compile this driver as a module, choose M here: the
1501 module will be called mixcomwd.
1503 Most people will say N.
1506 tristate "WDT Watchdog timer"
1509 If you have a WDT500P or WDT501P watchdog board, say Y here,
1510 otherwise N. It is not possible to probe for this board, which means
1511 that you have to inform the kernel about the IO port and IRQ that
1512 is needed (you can do this via the io and irq parameters)
1514 To compile this driver as a module, choose M here: the
1515 module will be called wdt.
1518 # PCI-based Watchdog Cards
1521 comment "PCI-based Watchdog Cards"
1524 config PCIPCWATCHDOG
1525 tristate "Berkshire Products PCI-PC Watchdog"
1528 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1529 This card simply watches your kernel to make sure it doesn't freeze,
1530 and if it does, it reboots your computer after a certain amount of
1531 time. The card can also monitor the internal temperature of the PC.
1532 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1534 To compile this driver as a module, choose M here: the
1535 module will be called pcwd_pci.
1537 Most people will say N.
1540 tristate "PCI-WDT500/501 Watchdog timer"
1543 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1545 If you have a PCI-WDT501 watchdog board then you can enable the
1546 temperature sensor by setting the type parameter to 501.
1548 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1549 can do this via the tachometer parameter. Only do this if you have a
1550 fan tachometer actually set up.
1552 To compile this driver as a module, choose M here: the
1553 module will be called wdt_pci.
1556 # USB-based Watchdog Cards
1559 comment "USB-based Watchdog Cards"
1562 config USBPCWATCHDOG
1563 tristate "Berkshire Products USB-PC Watchdog"
1566 This is the driver for the Berkshire Products USB-PC Watchdog card.
1567 This card simply watches your kernel to make sure it doesn't freeze,
1568 and if it does, it reboots your computer after a certain amount of
1569 time. The card can also monitor the internal temperature of the PC.
1570 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1572 To compile this driver as a module, choose M here: the
1573 module will be called pcwd_usb.
1575 Most people will say N.