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
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"
412 depends on ARM && HAS_IOMEM
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 TEGRA_WATCHDOG
475 tristate "Tegra watchdog"
476 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
479 Say Y here to include support for the watchdog timer
480 embedded in NVIDIA Tegra SoCs.
482 To compile this driver as a module, choose M here: the
483 module will be called tegra_wdt.
486 tristate "QCOM watchdog"
491 Say Y here to include Watchdog timer support for the watchdog found
492 on QCOM chipsets. Currently supported targets are the MSM8960,
493 APQ8064, and IPQ8064.
495 To compile this driver as a module, choose M here: the
496 module will be called qcom_wdt.
498 config MESON_WATCHDOG
499 tristate "Amlogic Meson SoCs watchdog support"
500 depends on ARCH_MESON
503 Say Y here to include support for the watchdog timer
504 in Amlogic Meson SoCs.
505 To compile this driver as a module, choose M here: the
506 module will be called meson_wdt.
510 config AT32AP700X_WDT
511 tristate "AT32AP700x watchdog"
512 depends on CPU_AT32AP700X
514 Watchdog timer embedded into AT32AP700x devices. This will reboot
515 your system when the timeout is reached.
517 # BLACKFIN Architecture
520 tristate "Blackfin On-Chip Watchdog Timer"
523 If you say yes here you will get support for the Blackfin On-Chip
524 Watchdog Timer. If you have one of these processors and wish to
525 have watchdog support enabled, say Y, otherwise say N.
527 To compile this driver as a module, choose M here: the
528 module will be called bfin_wdt.
534 # X86 (i386 + ia64 + x86_64) Architecture
537 tristate "Acquire SBC Watchdog Timer"
540 This is the driver for the hardware watchdog on Single Board
541 Computers produced by Acquire Inc (and others). This watchdog
542 simply watches your kernel to make sure it doesn't freeze, and if
543 it does, it reboots your computer after a certain amount of time.
545 To compile this driver as a module, choose M here: the
546 module will be called acquirewdt.
548 Most people will say N.
551 tristate "Advantech SBC Watchdog Timer"
554 If you are configuring a Linux kernel for the Advantech single-board
555 computer, say `Y' here to support its built-in watchdog timer
556 feature. More information can be found at
557 <http://www.advantech.com.tw/products/>
560 tristate "ALi M1535 PMU Watchdog Timer"
561 depends on X86 && PCI
563 This is the driver for the hardware watchdog on the ALi M1535 PMU.
565 To compile this driver as a module, choose M here: the
566 module will be called alim1535_wdt.
568 Most people will say N.
571 tristate "ALi M7101 PMU Computer Watchdog"
574 This is the driver for the hardware watchdog on the ALi M7101 PMU
575 as used in the x86 Cobalt servers and also found in some
576 SPARC Netra servers too.
578 To compile this driver as a module, choose M here: the
579 module will be called alim7101_wdt.
581 Most people will say N.
584 tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
587 This is the driver for the hardware watchdog on the Fintek
588 F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
590 You can compile this driver directly into the kernel, or use
591 it as a module. The module will be called f71808e_wdt.
594 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
595 depends on X86 && PCI
597 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
598 (Total Cost of Ownership) timer is a watchdog timer that will reboot
599 the machine after its expiration. The expiration time can be
600 configured with the "heartbeat" parameter.
602 To compile this driver as a module, choose M here: the
603 module will be called sp5100_tco.
606 tristate "AMD Geode CS5535/CS5536 Watchdog"
607 depends on CS5535_MFGPT
609 This driver enables a watchdog capability built into the
610 CS5535/CS5536 companion chips for the AMD Geode GX and LX
611 processors. This watchdog watches your kernel to make sure
612 it doesn't freeze, and if it does, it reboots your computer after
613 a certain amount of time.
615 You can compile this driver directly into the kernel, or use
616 it as a module. The module will be called geodewdt.
619 tristate "AMD Elan SC520 processor Watchdog"
622 This is the driver for the hardware watchdog built in to the
623 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
624 This watchdog simply watches your kernel to make sure it doesn't
625 freeze, and if it does, it reboots your computer after a certain
628 You can compile this driver directly into the kernel, or use
629 it as a module. The module will be called sc520_wdt.
631 config SBC_FITPC2_WATCHDOG
632 tristate "Compulab SBC-FITPC2 watchdog"
635 This is the driver for the built-in watchdog timer on the fit-PC2,
636 fit-PC2i, CM-iAM single-board computers made by Compulab.
638 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
639 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
641 Entering BIOS setup temporary disables watchdog operation regardless to current state,
642 so system will not be restarted while user in BIOS setup.
644 Once watchdog was enabled the system will be restarted every
645 "Watchdog Timer Value" period, so to prevent it user can restart or
646 disable the watchdog.
648 To compile this driver as a module, choose M here: the
649 module will be called sbc_fitpc2_wdt.
651 Most people will say N.
654 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
657 Enable support for the watchdog timer on the Eurotech CPU-1220 and
658 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
659 information are at <http://www.eurotech.it/>.
662 tristate "IB700 SBC Watchdog Timer"
665 This is the driver for the hardware watchdog on the IB700 Single
666 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
667 simply watches your kernel to make sure it doesn't freeze, and if
668 it does, it reboots your computer after a certain amount of time.
670 This driver is like the WDT501 driver but for slightly different hardware.
672 To compile this driver as a module, choose M here: the
673 module will be called ib700wdt.
675 Most people will say N.
678 tristate "IBM Automatic Server Restart"
681 This is the driver for the IBM Automatic Server Restart watchdog
682 timer built-in into some eServer xSeries machines.
684 To compile this driver as a module, choose M here: the
685 module will be called ibmasr.
688 tristate "ICP Single Board Computer Watchdog Timer"
691 This is a driver for the hardware watchdog on the ICP Single
692 Board Computer. This driver is working on (at least) the following
693 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
695 To compile this driver as a module, choose M here: the
696 module will be called wafer5823wdt.
699 tristate "Intel 6300ESB Timer/Watchdog"
702 Hardware driver for the watchdog timer built into the Intel
703 6300ESB controller hub.
705 To compile this driver as a module, choose M here: the
706 module will be called i6300esb.
709 tristate "Intel Atom E6xx Watchdog"
710 depends on X86 && PCI
715 Hardware driver for the watchdog timer built into the Intel
716 Atom E6XX (TunnelCreek) processor.
718 To compile this driver as a module, choose M here: the
719 module will be called ie6xx_wdt.
721 config INTEL_SCU_WATCHDOG
722 bool "Intel SCU Watchdog for Mobile Platforms"
723 depends on X86_INTEL_MID
725 Hardware driver for the watchdog time built into the Intel SCU
726 for Intel Mobile Platforms.
728 To compile this driver as a module, choose M here.
730 config INTEL_MID_WATCHDOG
731 tristate "Intel MID Watchdog Timer"
732 depends on X86_INTEL_MID
735 Watchdog timer driver built into the Intel SCU for Intel MID
738 This driver currently supports only the watchdog evolution
739 implementation in SCU, available for Merrifield generation.
741 To compile this driver as a module, choose M here.
744 tristate "Intel TCO Timer/Watchdog"
745 depends on (X86 || IA64) && PCI
749 Hardware driver for the intel TCO timer based watchdog devices.
750 These drivers are included in the Intel 82801 I/O Controller
751 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
754 The TCO (Total Cost of Ownership) timer is a watchdog timer
755 that will reboot the machine after its second expiration. The
756 expiration time can be configured with the "heartbeat" parameter.
758 On some motherboards the driver may fail to reset the chipset's
759 NO_REBOOT flag which prevents the watchdog from rebooting the
760 machine. If this is the case you will get a kernel message like
761 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
763 To compile this driver as a module, choose M here: the
764 module will be called iTCO_wdt.
766 config ITCO_VENDOR_SUPPORT
767 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
770 Add vendor specific support to the intel TCO timer based watchdog
771 devices. At this moment we only have additional support for some
772 SuperMicro Inc. motherboards.
775 tristate "IT8712F (Smart Guardian) Watchdog Timer"
778 This is the driver for the built-in watchdog timer on the IT8712F
779 Super I/0 chipset used on many motherboards.
781 If the driver does not work, then make sure that the game port in
784 To compile this driver as a module, choose M here: the
785 module will be called it8712f_wdt.
788 tristate "IT87 Watchdog Timer"
791 This is the driver for the hardware watchdog on the ITE IT8702,
792 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728
795 If the driver does not work, then make sure that the game port in
798 This watchdog simply watches your kernel to make sure it doesn't
799 freeze, and if it does, it reboots your computer after a certain
802 To compile this driver as a module, choose M here: the module will
806 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
807 depends on X86 && PCI
809 A software monitoring watchdog and NMI sourcing driver. This driver
810 will detect lockups and provide a stack trace. This is a driver that
811 will only load on an HP ProLiant system with a minimum of iLO2 support.
812 To compile this driver as a module, choose M here: the module will be
816 tristate "Kontron COM Watchdog Timer"
817 depends on MFD_KEMPLD
820 Support for the PLD watchdog on some Kontron ETX and COMexpress
823 This driver can also be built as a module. If so, the module will be
826 config HPWDT_NMI_DECODING
827 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
828 depends on HP_WATCHDOG
831 When an NMI occurs this feature will make the necessary BIOS calls to
832 log the cause of the NMI.
835 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
838 This is a driver for National Semiconductor PC87307/PC97307 hardware
839 watchdog cards as found on the SC1200. This watchdog is mainly used
840 for power management purposes and can be used to power down the device
841 during inactivity periods (includes interrupt activity monitoring).
843 To compile this driver as a module, choose M here: the
844 module will be called sc1200wdt.
846 Most people will say N.
849 tristate "National Semiconductor SCx200 Watchdog"
850 depends on SCx200 && PCI
852 Enable the built-in watchdog timer support on the National
853 Semiconductor SCx200 processors.
855 If compiled as a module, it will be called scx200_wdt.
858 tristate "NS PC87413 watchdog"
861 This is the driver for the hardware watchdog on the PC87413 chipset
862 This watchdog simply watches your kernel to make sure it doesn't
863 freeze, and if it does, it reboots your computer after a certain
866 To compile this driver as a module, choose M here: the
867 module will be called pc87413_wdt.
869 Most people will say N.
872 tristate "nVidia TCO Timer/Watchdog"
873 depends on X86 && PCI
875 Hardware driver for the TCO timer built into the nVidia Hub family
876 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
877 watchdog timer that will reboot the machine after its second
878 expiration. The expiration time can be configured with the
879 "heartbeat" parameter.
881 On some motherboards the driver may fail to reset the chipset's
882 NO_REBOOT flag which prevents the watchdog from rebooting the
883 machine. If this is the case you will get a kernel message like
884 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
886 To compile this driver as a module, choose M here: the
887 module will be called nv_tco.
890 tristate "RDC R-321x SoC watchdog"
891 depends on X86_RDC321X
893 This is the driver for the built in hardware watchdog
894 in the RDC R-321x SoC.
896 To compile this driver as a module, choose M here: the
897 module will be called rdc321x_wdt.
900 tristate "SBC-60XX Watchdog Timer"
903 This driver can be used with the watchdog timer found on some
904 single board computers, namely the 6010 PII based computer.
905 It may well work with other cards. It reads port 0x443 to enable
906 and re-set the watchdog timer, and reads port 0x45 to disable
907 the watchdog. If you have a card that behave in similar ways,
908 you can probably make this driver work with your card as well.
910 You can compile this driver directly into the kernel, or use
911 it as a module. The module will be called sbc60xxwdt.
914 tristate "SBC8360 Watchdog Timer"
918 This is the driver for the hardware watchdog on the SBC8360 Single
919 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
921 To compile this driver as a module, choose M here: the
922 module will be called sbc8360.
924 Most people will say N.
927 tristate "SBC Nano 7240 Watchdog Timer"
928 depends on X86_32 && !UML
930 This is the driver for the hardware watchdog found on the IEI
931 single board computers EPIC Nano 7240 (and likely others). This
932 watchdog simply watches your kernel to make sure it doesn't freeze,
933 and if it does, it reboots your computer after a certain amount of
936 To compile this driver as a module, choose M here: the
937 module will be called sbc7240_wdt.
940 tristate "SMA CPU5 Watchdog"
944 To compile this driver as a module, choose M here: the
945 module will be called cpu5wdt.
947 config SMSC_SCH311X_WDT
948 tristate "SMSC SCH311X Watchdog Timer"
951 This is the driver for the hardware watchdog timer on the
952 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
953 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
956 To compile this driver as a module, choose M here: the
957 module will be called sch311x_wdt.
959 config SMSC37B787_WDT
960 tristate "Winbond SMsC37B787 Watchdog Timer"
963 This is the driver for the hardware watchdog component on the
964 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
965 from Vision Systems and maybe others.
967 This watchdog simply watches your kernel to make sure it doesn't
968 freeze, and if it does, it reboots your computer after a certain
971 Usually a userspace daemon will notify the kernel WDT driver that
972 userspace is still alive, at regular intervals.
974 To compile this driver as a module, choose M here: the
975 module will be called smsc37b787_wdt.
977 Most people will say N.
980 tristate "VIA Watchdog Timer"
981 depends on X86 && PCI
984 This is the driver for the hardware watchdog timer on VIA
985 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
987 To compile this driver as a module, choose M here; the module
988 will be called via_wdt.
990 Most people will say N.
993 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
997 This is the driver for the hardware watchdog on the following
999 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1009 This watchdog simply watches your kernel to make sure it doesn't
1010 freeze, and if it does, it reboots your computer after a certain
1013 To compile this driver as a module, choose M here: the
1014 module will be called w83627hf_wdt.
1016 Most people will say N.
1019 tristate "W83877F (EMACS) Watchdog Timer"
1022 This is the driver for the hardware watchdog on the W83877F chipset
1023 as used in EMACS PC-104 motherboards (and likely others). This
1024 watchdog simply watches your kernel to make sure it doesn't freeze,
1025 and if it does, it reboots your computer after a certain amount of
1028 To compile this driver as a module, choose M here: the
1029 module will be called w83877f_wdt.
1031 Most people will say N.
1034 tristate "W83977F (PCM-5335) Watchdog Timer"
1037 This is the driver for the hardware watchdog on the W83977F I/O chip
1038 as used in AAEON's PCM-5335 SBC (and likely others). This
1039 watchdog simply watches your kernel to make sure it doesn't freeze,
1040 and if it does, it reboots your computer after a certain amount of
1043 To compile this driver as a module, choose M here: the
1044 module will be called w83977f_wdt.
1047 tristate "ZF MachZ Watchdog"
1050 If you are using a ZF Micro MachZ processor, say Y here, otherwise
1051 N. This is the driver for the watchdog timer built-in on that
1052 processor using ZF-Logic interface. This watchdog simply watches
1053 your kernel to make sure it doesn't freeze, and if it does, it
1054 reboots your computer after a certain amount of time.
1056 To compile this driver as a module, choose M here: the
1057 module will be called machzwd.
1059 config SBC_EPX_C3_WATCHDOG
1060 tristate "Winsystems SBC EPX-C3 watchdog"
1063 This is the driver for the built-in watchdog timer on the EPX-C3
1064 Single-board computer made by Winsystems, Inc.
1066 *Note*: This hardware watchdog is not probeable and thus there
1067 is no way to know if writing to its IO address will corrupt
1068 your system or have any real effect. The only way to be sure
1069 that this driver does what you want is to make sure you
1070 are running it on an EPX-C3 from Winsystems with the watchdog
1071 timer at IO address 0x1ee and 0x1ef. It will write to both those
1072 IO ports. Basically, the assumption is made that if you compile
1073 this driver into your kernel and/or load it as a module, that you
1074 know what you are doing and that you are in fact running on an
1077 To compile this driver as a module, choose M here: the
1078 module will be called sbc_epx_c3.
1084 config M54xx_WATCHDOG
1085 tristate "MCF54xx watchdog support"
1088 To compile this driver as a module, choose M here: the
1089 module will be called m54xx_wdt.
1091 # MicroBlaze Architecture
1096 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1099 Hardware driver for the built-in watchdog timer on the Atheros
1100 AR71XX/AR724X/AR913X SoCs.
1103 tristate "Broadcom BCM47xx Watchdog Timer"
1105 select WATCHDOG_CORE
1107 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1110 tristate "IDT RC32434 SoC Watchdog Timer"
1111 depends on MIKROTIK_RB532
1113 Hardware driver for the IDT RC32434 SoC built-in
1116 To compile this driver as a module, choose M here: the
1117 module will be called rc32434_wdt.
1120 tristate "Indy/I2 Hardware Watchdog"
1121 depends on SGI_HAS_INDYDOG
1123 Hardware driver for the Indy's/I2's watchdog. This is a
1124 watchdog timer that will reboot the machine after a 60 second
1125 timer expired and no process has written to /dev/watchdog during
1129 tristate "Ingenic jz4740 SoC hardware watchdog"
1130 depends on MACH_JZ4740
1131 select WATCHDOG_CORE
1133 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1136 tristate "MTX-1 Hardware Watchdog"
1137 depends on MIPS_MTX1
1139 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1140 will reboot the machine after a 100 seconds timer expired.
1143 tristate "PNX833x Hardware Watchdog"
1144 depends on SOC_PNX8335
1146 Hardware driver for the PNX833x's watchdog. This is a
1147 watchdog timer that will reboot the machine after a programmable
1148 timer has expired and no process has written to /dev/watchdog during
1152 tristate "Sibyte SoC hardware watchdog"
1155 Watchdog driver for the built in watchdog hardware in Sibyte
1156 SoC processors. There are apparently two watchdog timers
1157 on such processors; this driver supports only the first one,
1158 because currently Linux only supports exporting one watchdog
1161 To compile this driver as a loadable module, choose M here.
1162 The module will be called sb_wdog.
1165 tristate "TI AR7 Watchdog Timer"
1168 Hardware driver for the TI AR7 Watchdog Timer.
1171 tristate "Toshiba TXx9 Watchdog Timer"
1172 depends on CPU_TX39XX || CPU_TX49XX
1173 select WATCHDOG_CORE
1175 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1178 tristate "Cavium OCTEON SOC family Watchdog Timer"
1179 depends on CAVIUM_OCTEON_SOC
1181 select EXPORT_UASM if OCTEON_WDT = m
1183 Hardware driver for OCTEON's on chip watchdog timer.
1184 Enables the watchdog for all cores running Linux. It
1185 installs a NMI handler and pokes the watchdog based on an
1186 interrupt. On first expiration of the watchdog, the
1187 interrupt handler pokes it. The second expiration causes an
1188 NMI that prints a message. The third expiration causes a
1191 When userspace has /dev/watchdog open, no poking is done
1192 from the first interrupt, it is then only poked when the
1196 tristate "Broadcom BCM63xx hardware watchdog"
1199 Watchdog driver for the built in watchdog hardware in Broadcom
1202 To compile this driver as a loadable module, choose M here.
1203 The module will be called bcm63xx_wdt.
1206 tristate "Broadcom BCM2835 hardware watchdog"
1207 depends on ARCH_BCM2835
1208 select WATCHDOG_CORE
1210 Watchdog driver for the built in watchdog hardware in Broadcom
1213 To compile this driver as a loadable module, choose M here.
1214 The module will be called bcm2835_wdt.
1217 tristate "BCM Kona Watchdog"
1218 depends on ARCH_BCM_MOBILE
1219 select WATCHDOG_CORE
1221 Support for the watchdog timer on the following Broadcom BCM281xx
1222 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1225 Say 'Y' or 'M' here to enable the driver. The module will be called
1228 config BCM_KONA_WDT_DEBUG
1229 bool "DEBUGFS support for BCM Kona Watchdog"
1230 depends on BCM_KONA_WDT
1232 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1233 access to the driver's internal data structures as well as watchdog
1234 timer hardware registres.
1236 If in doubt, say 'N'.
1239 tristate "Lantiq SoC watchdog"
1242 Hardware driver for the Lantiq SoC Watchdog Timer.
1245 tristate "Ralink SoC watchdog"
1246 select WATCHDOG_CORE
1249 Hardware driver for the Ralink SoC Watchdog Timer.
1251 # PARISC Architecture
1253 # POWERPC Architecture
1256 tristate "GE Watchdog Timer"
1259 Watchdog timer found in a number of GE single board computers.
1262 bool "MPC52xx Watchdog Timer"
1263 depends on PPC_MPC52xx
1265 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1268 tristate "MPC8xxx Platform Watchdog Timer"
1269 depends on PPC_8xx || PPC_83xx || PPC_86xx
1270 select WATCHDOG_CORE
1272 This driver is for a SoC level watchdog that exists on some
1273 Freescale PowerPC processors. So far this driver supports:
1278 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1281 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1285 tristate "PIKA FPGA Watchdog"
1289 This enables the watchdog in the PIKA FPGA. Currently used on
1293 tristate "PowerPC Book-E Watchdog Timer"
1294 depends on BOOKE || 4xx
1295 select WATCHDOG_CORE
1297 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1298 MPC85xx SOCs and the IBM PowerPC 440.
1300 Please see Documentation/watchdog/watchdog-api.txt for
1303 config BOOKE_WDT_DEFAULT_TIMEOUT
1304 int "PowerPC Book-E Watchdog Timer Default Timeout"
1305 depends on BOOKE_WDT
1306 default 38 if PPC_FSL_BOOK3E
1307 range 0 63 if PPC_FSL_BOOK3E
1308 default 3 if !PPC_FSL_BOOK3E
1309 range 0 3 if !PPC_FSL_BOOK3E
1311 Select the default watchdog timer period to be used by the PowerPC
1312 Book-E watchdog driver. A watchdog "event" occurs when the bit
1313 position represented by this number transitions from zero to one.
1315 For Freescale Book-E processors, this is a number between 0 and 63.
1316 For other Book-E processors, this is a number between 0 and 3.
1318 The value can be overridden by the wdt_period command-line parameter.
1321 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1322 select WATCHDOG_CORE
1325 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1327 The driver can also be built as a module. If so, the module will be
1330 If unsure select N here.
1332 # PPC64 Architecture
1334 config WATCHDOG_RTAS
1335 tristate "RTAS watchdog"
1338 This driver adds watchdog support for the RTAS watchdog.
1340 To compile this driver as a module, choose M here. The module
1341 will be called wdrtas.
1345 config DIAG288_WATCHDOG
1346 tristate "System z diag288 Watchdog"
1348 select WATCHDOG_CORE
1350 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1351 provide a virtual watchdog timer to their guest that cause a
1352 user define Control Program command to be executed after a
1354 LPAR provides a very similar interface. This driver handles
1357 To compile this driver as a module, choose M here. The module
1358 will be called diag288_wdt.
1360 # SUPERH (sh + sh64) Architecture
1363 tristate "SuperH Watchdog"
1364 depends on SUPERH && (CPU_SH3 || CPU_SH4)
1365 select WATCHDOG_CORE
1367 This driver adds watchdog support for the integrated watchdog in the
1368 SuperH processors. If you have one of these processors and wish
1369 to have watchdog support enabled, say Y, otherwise say N.
1371 As a side note, saying Y here will automatically boost HZ to 1000
1372 so that the timer has a chance to clear the overflow counter. On
1373 slower systems (such as the SH-2 and SH-3) this will likely yield
1374 some performance issues. As such, the WDT should be avoided here
1375 unless it is absolutely necessary.
1377 To compile this driver as a module, choose M here: the
1378 module will be called shwdt.
1380 # SPARC Architecture
1382 # SPARC64 Architecture
1384 config WATCHDOG_CP1XXX
1385 tristate "CP1XXX Hardware Watchdog support"
1386 depends on SPARC64 && PCI
1388 This is the driver for the hardware watchdog timers present on
1389 Sun Microsystems CompactPCI models CP1400 and CP1500.
1391 To compile this driver as a module, choose M here: the
1392 module will be called cpwatchdog.
1394 If you do not have a CompactPCI model CP1400 or CP1500, or
1395 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1396 you should say N to this option.
1399 tristate "RIO Hardware Watchdog support"
1400 depends on SPARC64 && PCI
1402 Say Y here to support the hardware watchdog capability on Sun RIO
1403 machines. The watchdog timeout period is normally one minute but
1404 can be changed with a boot-time parameter.
1406 # XTENSA Architecture
1411 tristate "Xen Watchdog support"
1414 Say Y here to support the hypervisor watchdog capability provided
1415 by Xen 4.0 and newer. The watchdog timeout period is normally one
1416 minute but can be changed with a boot-time parameter.
1419 tristate "UML watchdog"
1423 # ISA-based Watchdog Cards
1426 comment "ISA-based Watchdog Cards"
1430 tristate "Berkshire Products ISA-PC Watchdog"
1433 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1434 This card simply watches your kernel to make sure it doesn't freeze,
1435 and if it does, it reboots your computer after a certain amount of
1436 time. This driver is like the WDT501 driver but for different
1437 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1438 watchdog cards can be ordered from <http://www.berkprod.com/>.
1440 To compile this driver as a module, choose M here: the
1441 module will be called pcwd.
1443 Most people will say N.
1446 tristate "Mixcom Watchdog"
1449 This is a driver for the Mixcom hardware watchdog cards. This
1450 watchdog simply watches your kernel to make sure it doesn't freeze,
1451 and if it does, it reboots your computer after a certain amount of
1454 To compile this driver as a module, choose M here: the
1455 module will be called mixcomwd.
1457 Most people will say N.
1460 tristate "WDT Watchdog timer"
1463 If you have a WDT500P or WDT501P watchdog board, say Y here,
1464 otherwise N. It is not possible to probe for this board, which means
1465 that you have to inform the kernel about the IO port and IRQ that
1466 is needed (you can do this via the io and irq parameters)
1468 To compile this driver as a module, choose M here: the
1469 module will be called wdt.
1472 # PCI-based Watchdog Cards
1475 comment "PCI-based Watchdog Cards"
1478 config PCIPCWATCHDOG
1479 tristate "Berkshire Products PCI-PC Watchdog"
1482 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1483 This card simply watches your kernel to make sure it doesn't freeze,
1484 and if it does, it reboots your computer after a certain amount of
1485 time. The card can also monitor the internal temperature of the PC.
1486 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1488 To compile this driver as a module, choose M here: the
1489 module will be called pcwd_pci.
1491 Most people will say N.
1494 tristate "PCI-WDT500/501 Watchdog timer"
1497 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1499 If you have a PCI-WDT501 watchdog board then you can enable the
1500 temperature sensor by setting the type parameter to 501.
1502 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1503 can do this via the tachometer parameter. Only do this if you have a
1504 fan tachometer actually set up.
1506 To compile this driver as a module, choose M here: the
1507 module will be called wdt_pci.
1510 # USB-based Watchdog Cards
1513 comment "USB-based Watchdog Cards"
1516 config USBPCWATCHDOG
1517 tristate "Berkshire Products USB-PC Watchdog"
1520 This is the driver for the Berkshire Products USB-PC Watchdog card.
1521 This card simply watches your kernel to make sure it doesn't freeze,
1522 and if it does, it reboots your computer after a certain amount of
1523 time. The card can also monitor the internal temperature of the PC.
1524 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1526 To compile this driver as a module, choose M here: the
1527 module will be called pcwd_usb.
1529 Most people will say N.