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.
91 tristate "Watchdog device controlled through GPIO-line"
95 If you say yes here you get support for watchdog device
96 controlled through GPIO-line.
98 config WM831X_WATCHDOG
99 tristate "WM831x watchdog"
100 depends on MFD_WM831X
103 Support for the watchdog in the WM831x AudioPlus PMICs. When
104 the watchdog triggers the system will be reset.
106 config WM8350_WATCHDOG
107 tristate "WM8350 watchdog"
108 depends on MFD_WM8350
111 Support for the watchdog in the WM8350 AudioPlus PMIC. When
112 the watchdog triggers the system will be reset.
114 config XILINX_WATCHDOG
115 tristate "Xilinx Watchdog timer"
118 Watchdog driver for the xps_timebase_wdt ip core.
120 To compile this driver as a module, choose M here: the
121 module will be called of_xilinx_wdt.
127 config ARM_SP805_WATCHDOG
128 tristate "ARM SP805 Watchdog"
129 depends on (ARM || ARM64) && ARM_AMBA
132 ARM Primecell SP805 Watchdog timer. This will reboot your system when
133 the timeout is reached.
135 config AT91RM9200_WATCHDOG
136 tristate "AT91RM9200 watchdog"
137 depends on ARCH_AT91RM9200
139 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
140 system when the timeout is reached.
142 config AT91SAM9X_WATCHDOG
143 tristate "AT91SAM9X / AT91CAP9 watchdog"
144 depends on ARCH_AT91 && !ARCH_AT91RM9200
147 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
148 reboot your system when the timeout is reached.
150 config 21285_WATCHDOG
151 tristate "DC21285 watchdog"
152 depends on FOOTBRIDGE
154 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
155 here if you wish to use this. Alternatively say M to compile the
156 driver as a module, which will be called wdt285.
158 This driver does not work on all machines. In particular, early CATS
159 boards have hardware problems that will cause the machine to simply
160 lock up if the watchdog fires.
162 "If in doubt, leave it out" - say N.
165 tristate "NetWinder WB83C977 watchdog"
166 depends on FOOTBRIDGE && ARCH_NETWINDER
168 Say Y here to include support for the WB977 watchdog included in
169 NetWinder machines. Alternatively say M to compile the driver as
170 a module, which will be called wdt977.
172 Not sure? It's safe to say N.
174 config IXP4XX_WATCHDOG
175 tristate "IXP4xx Watchdog"
176 depends on ARCH_IXP4XX
178 Say Y here if to include support for the watchdog timer
179 in the Intel IXP4xx network processors. This driver can
180 be built as a module by choosing M. The module will
181 be called ixp4xx_wdt.
183 Note: The internal IXP4xx watchdog does a soft CPU reset
184 which doesn't reset any peripherals. There are circumstances
185 where the watchdog will fail to reset the board correctly
186 (e.g., if the boot ROM is in an unreadable state).
188 Say N if you are unsure.
190 config KS8695_WATCHDOG
191 tristate "KS8695 watchdog"
192 depends on ARCH_KS8695
194 Watchdog timer embedded into KS8695 processor. This will reboot your
195 system when the timeout is reached.
197 config HAVE_S3C2410_WATCHDOG
200 This will include watchdog timer support for Samsung SoCs. If
201 you want to include watchdog support for any machine, kindly
202 select this in the respective mach-XXXX/Kconfig file.
204 config S3C2410_WATCHDOG
205 tristate "S3C2410 Watchdog"
206 depends on HAVE_S3C2410_WATCHDOG
208 select MFD_SYSCON if ARCH_EXYNOS5
210 Watchdog timer block in the Samsung SoCs. This will reboot
211 the system when the timer expires with the watchdog enabled.
213 The driver is limited by the speed of the system's PCLK
214 signal, so with reasonably fast systems (PCLK around 50-66MHz)
215 then watchdog intervals of over approximately 20seconds are
218 The driver can be built as a module by choosing M, and will
219 be called s3c2410_wdt
221 config SA1100_WATCHDOG
222 tristate "SA1100/PXA2xx watchdog"
223 depends on ARCH_SA1100 || ARCH_PXA
225 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
226 reboot your system when timeout is reached.
228 NOTE: once enabled, this timer cannot be disabled.
230 To compile this driver as a module, choose M here: the
231 module will be called sa1100_wdt.
234 tristate "Synopsys DesignWare watchdog"
237 Say Y here if to include support for the Synopsys DesignWare
238 watchdog timer found in many chips.
239 To compile this driver as a module, choose M here: the
240 module will be called dw_wdt.
242 config EP93XX_WATCHDOG
243 tristate "EP93xx Watchdog"
244 depends on ARCH_EP93XX
247 Say Y here if to include support for the watchdog timer
248 embedded in the Cirrus Logic EP93xx family of devices.
250 To compile this driver as a module, choose M here: the
251 module will be called ep93xx_wdt.
254 tristate "OMAP Watchdog"
255 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
258 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
259 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
261 config PNX4008_WATCHDOG
262 tristate "LPC32XX Watchdog"
263 depends on ARCH_LPC32XX
266 Say Y here if to include support for the watchdog timer
267 in the LPC32XX processor.
268 This driver can be built as a module by choosing M. The module
269 will be called pnx4008_wdt.
271 Say N if you are unsure.
274 tristate "IOP Watchdog"
275 depends on ARCH_IOP13XX
276 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
278 Say Y here if to include support for the watchdog timer
279 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
280 be built as a module by choosing M. The module will
283 Note: The IOP13XX watchdog does an Internal Bus Reset which will
284 affect both cores and the peripherals of the IOP. The ATU-X
285 and/or ATUe configuration registers will remain intact, but if
286 operating as an Root Complex and/or Central Resource, the PCI-X
287 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
289 config DAVINCI_WATCHDOG
290 tristate "DaVinci watchdog"
291 depends on ARCH_DAVINCI || ARCH_KEYSTONE
294 Say Y here if to include support for the watchdog timer
295 in the DaVinci DM644x/DM646x or Keystone processors.
296 To compile this driver as a module, choose M here: the
297 module will be called davinci_wdt.
299 NOTE: once enabled, this timer cannot be disabled.
300 Say N if you are unsure.
302 config ORION_WATCHDOG
303 tristate "Orion watchdog"
304 depends on ARCH_ORION5X || ARCH_KIRKWOOD || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU
307 Say Y here if to include support for the watchdog timer
308 in the Marvell Orion5x and Kirkwood ARM SoCs.
309 To compile this driver as a module, choose M here: the
310 module will be called orion_wdt.
312 config SUNXI_WATCHDOG
313 tristate "Allwinner SoCs watchdog support"
314 depends on ARCH_SUNXI
317 Say Y here to include support for the watchdog timer
319 To compile this driver as a module, choose M here: the
320 module will be called sunxi_wdt.
322 config COH901327_WATCHDOG
323 bool "ST-Ericsson COH 901 327 watchdog"
325 default y if MACH_U300
328 Say Y here to include Watchdog timer support for the
329 watchdog embedded into the ST-Ericsson U300 series platforms.
330 This watchdog is used to reset the system and thus cannot be
331 compiled as a module.
333 config TWL4030_WATCHDOG
334 tristate "TWL4030 Watchdog"
335 depends on TWL4030_CORE
338 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
339 watchdog timer support for TWL4030 chips.
341 config STMP3XXX_RTC_WATCHDOG
342 tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
343 depends on RTC_DRV_STMP
346 Say Y here to include support for the watchdog timer inside
347 the RTC for the STMP37XX/378X or i.MX23/28 SoC.
348 To compile this driver as a module, choose M here: the
349 module will be called stmp3xxx_rtc_wdt.
351 config NUC900_WATCHDOG
352 tristate "Nuvoton NUC900 watchdog"
353 depends on ARCH_W90X900
355 Say Y here if to include support for the watchdog timer
356 for the Nuvoton NUC900 series SoCs.
357 To compile this driver as a module, choose M here: the
358 module will be called nuc900_wdt.
360 config TS72XX_WATCHDOG
361 tristate "TS-72XX SBC Watchdog"
362 depends on MACH_TS72XX
364 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
365 watchdog timer implemented in a external CPLD chip. Say Y here
366 if you want to support for the watchdog timer on TS-72XX boards.
368 To compile this driver as a module, choose M here: the
369 module will be called ts72xx_wdt.
371 config MAX63XX_WATCHDOG
372 tristate "Max63xx watchdog"
373 depends on ARM && HAS_IOMEM
376 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
379 tristate "IMX2+ Watchdog"
384 This is the driver for the hardware watchdog
385 on the Freescale IMX2 and later processors.
386 If you have one of these processors and wish to have
387 watchdog support enabled, say Y, otherwise say N.
389 To compile this driver as a module, choose M here: the
390 module will be called imx2_wdt.
392 config UX500_WATCHDOG
393 tristate "ST-Ericsson Ux500 watchdog"
394 depends on MFD_DB8500_PRCMU
398 Say Y here to include Watchdog timer support for the watchdog
399 existing in the prcmu of ST-Ericsson Ux500 series platforms.
401 To compile this driver as a module, choose M here: the
402 module will be called ux500_wdt.
405 tristate "Retu watchdog"
409 Retu watchdog driver for Nokia Internet Tablets (770, N800,
410 N810). At least on N800 the watchdog cannot be disabled, so
411 this driver is essential and you should enable it.
413 To compile this driver as a module, choose M here: the
414 module will be called retu_wdt.
417 tristate "MOXART watchdog"
418 depends on ARCH_MOXART
420 Say Y here to include Watchdog timer support for the watchdog
421 existing on the MOXA ART SoC series platforms.
423 To compile this driver as a module, choose M here: the
424 module will be called moxart_wdt.
426 config SIRFSOC_WATCHDOG
427 tristate "SiRFSOC watchdog"
432 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
433 the watchdog triggers the system will be reset.
435 config TEGRA_WATCHDOG
436 tristate "Tegra watchdog"
437 depends on ARCH_TEGRA || COMPILE_TEST
440 Say Y here to include support for the watchdog timer
441 embedded in NVIDIA Tegra SoCs.
443 To compile this driver as a module, choose M here: the
444 module will be called tegra_wdt.
448 config AT32AP700X_WDT
449 tristate "AT32AP700x watchdog"
450 depends on CPU_AT32AP700X
452 Watchdog timer embedded into AT32AP700x devices. This will reboot
453 your system when the timeout is reached.
455 # BLACKFIN Architecture
458 tristate "Blackfin On-Chip Watchdog Timer"
461 If you say yes here you will get support for the Blackfin On-Chip
462 Watchdog Timer. If you have one of these processors and wish to
463 have watchdog support enabled, say Y, otherwise say N.
465 To compile this driver as a module, choose M here: the
466 module will be called bfin_wdt.
472 # X86 (i386 + ia64 + x86_64) Architecture
475 tristate "Acquire SBC Watchdog Timer"
478 This is the driver for the hardware watchdog on Single Board
479 Computers produced by Acquire Inc (and others). This watchdog
480 simply watches your kernel to make sure it doesn't freeze, and if
481 it does, it reboots your computer after a certain amount of time.
483 To compile this driver as a module, choose M here: the
484 module will be called acquirewdt.
486 Most people will say N.
489 tristate "Advantech SBC Watchdog Timer"
492 If you are configuring a Linux kernel for the Advantech single-board
493 computer, say `Y' here to support its built-in watchdog timer
494 feature. More information can be found at
495 <http://www.advantech.com.tw/products/>
498 tristate "ALi M1535 PMU Watchdog Timer"
499 depends on X86 && PCI
501 This is the driver for the hardware watchdog on the ALi M1535 PMU.
503 To compile this driver as a module, choose M here: the
504 module will be called alim1535_wdt.
506 Most people will say N.
509 tristate "ALi M7101 PMU Computer Watchdog"
512 This is the driver for the hardware watchdog on the ALi M7101 PMU
513 as used in the x86 Cobalt servers and also found in some
514 SPARC Netra servers too.
516 To compile this driver as a module, choose M here: the
517 module will be called alim7101_wdt.
519 Most people will say N.
522 tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog"
525 This is the driver for the hardware watchdog on the Fintek
526 F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers.
528 You can compile this driver directly into the kernel, or use
529 it as a module. The module will be called f71808e_wdt.
532 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
533 depends on X86 && PCI
535 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
536 (Total Cost of Ownership) timer is a watchdog timer that will reboot
537 the machine after its expiration. The expiration time can be
538 configured with the "heartbeat" parameter.
540 To compile this driver as a module, choose M here: the
541 module will be called sp5100_tco.
544 tristate "AMD Geode CS5535/CS5536 Watchdog"
545 depends on CS5535_MFGPT
547 This driver enables a watchdog capability built into the
548 CS5535/CS5536 companion chips for the AMD Geode GX and LX
549 processors. This watchdog watches your kernel to make sure
550 it doesn't freeze, and if it does, it reboots your computer after
551 a certain amount of time.
553 You can compile this driver directly into the kernel, or use
554 it as a module. The module will be called geodewdt.
557 tristate "AMD Elan SC520 processor Watchdog"
560 This is the driver for the hardware watchdog built in to the
561 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
562 This watchdog simply watches your kernel to make sure it doesn't
563 freeze, and if it does, it reboots your computer after a certain
566 You can compile this driver directly into the kernel, or use
567 it as a module. The module will be called sc520_wdt.
569 config SBC_FITPC2_WATCHDOG
570 tristate "Compulab SBC-FITPC2 watchdog"
573 This is the driver for the built-in watchdog timer on the fit-PC2,
574 fit-PC2i, CM-iAM single-board computers made by Compulab.
576 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
577 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
579 Entering BIOS setup temporary disables watchdog operation regardless to current state,
580 so system will not be restarted while user in BIOS setup.
582 Once watchdog was enabled the system will be restarted every
583 "Watchdog Timer Value" period, so to prevent it user can restart or
584 disable the watchdog.
586 To compile this driver as a module, choose M here: the
587 module will be called sbc_fitpc2_wdt.
589 Most people will say N.
592 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
595 Enable support for the watchdog timer on the Eurotech CPU-1220 and
596 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
597 information are at <http://www.eurotech.it/>.
600 tristate "IB700 SBC Watchdog Timer"
603 This is the driver for the hardware watchdog on the IB700 Single
604 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
605 simply watches your kernel to make sure it doesn't freeze, and if
606 it does, it reboots your computer after a certain amount of time.
608 This driver is like the WDT501 driver but for slightly different hardware.
610 To compile this driver as a module, choose M here: the
611 module will be called ib700wdt.
613 Most people will say N.
616 tristate "IBM Automatic Server Restart"
619 This is the driver for the IBM Automatic Server Restart watchdog
620 timer built-in into some eServer xSeries machines.
622 To compile this driver as a module, choose M here: the
623 module will be called ibmasr.
626 tristate "ICP Single Board Computer Watchdog Timer"
629 This is a driver for the hardware watchdog on the ICP Single
630 Board Computer. This driver is working on (at least) the following
631 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
633 To compile this driver as a module, choose M here: the
634 module will be called wafer5823wdt.
637 tristate "Intel 6300ESB Timer/Watchdog"
640 Hardware driver for the watchdog timer built into the Intel
641 6300ESB controller hub.
643 To compile this driver as a module, choose M here: the
644 module will be called i6300esb.
647 tristate "Intel Atom E6xx Watchdog"
648 depends on X86 && PCI
653 Hardware driver for the watchdog timer built into the Intel
654 Atom E6XX (TunnelCreek) processor.
656 To compile this driver as a module, choose M here: the
657 module will be called ie6xx_wdt.
659 config INTEL_SCU_WATCHDOG
660 bool "Intel SCU Watchdog for Mobile Platforms"
661 depends on X86_INTEL_MID
663 Hardware driver for the watchdog time built into the Intel SCU
664 for Intel Mobile Platforms.
666 To compile this driver as a module, choose M here.
668 config INTEL_MID_WATCHDOG
669 tristate "Intel MID Watchdog Timer"
670 depends on X86_INTEL_MID
673 Watchdog timer driver built into the Intel SCU for Intel MID
676 This driver currently supports only the watchdog evolution
677 implementation in SCU, available for Merrifield generation.
679 To compile this driver as a module, choose M here.
682 tristate "Intel TCO Timer/Watchdog"
683 depends on (X86 || IA64) && PCI
687 Hardware driver for the intel TCO timer based watchdog devices.
688 These drivers are included in the Intel 82801 I/O Controller
689 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
692 The TCO (Total Cost of Ownership) timer is a watchdog timer
693 that will reboot the machine after its second expiration. The
694 expiration time can be configured with the "heartbeat" parameter.
696 On some motherboards the driver may fail to reset the chipset's
697 NO_REBOOT flag which prevents the watchdog from rebooting the
698 machine. If this is the case you will get a kernel message like
699 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
701 To compile this driver as a module, choose M here: the
702 module will be called iTCO_wdt.
704 config ITCO_VENDOR_SUPPORT
705 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
708 Add vendor specific support to the intel TCO timer based watchdog
709 devices. At this moment we only have additional support for some
710 SuperMicro Inc. motherboards.
713 tristate "IT8712F (Smart Guardian) Watchdog Timer"
716 This is the driver for the built-in watchdog timer on the IT8712F
717 Super I/0 chipset used on many motherboards.
719 If the driver does not work, then make sure that the game port in
722 To compile this driver as a module, choose M here: the
723 module will be called it8712f_wdt.
726 tristate "IT87 Watchdog Timer"
729 This is the driver for the hardware watchdog on the ITE IT8702,
730 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728
733 If the driver does not work, then make sure that the game port in
736 This watchdog simply watches your kernel to make sure it doesn't
737 freeze, and if it does, it reboots your computer after a certain
740 To compile this driver as a module, choose M here: the module will
744 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
745 depends on X86 && PCI
747 A software monitoring watchdog and NMI sourcing driver. This driver
748 will detect lockups and provide a stack trace. This is a driver that
749 will only load on an HP ProLiant system with a minimum of iLO2 support.
750 To compile this driver as a module, choose M here: the module will be
754 tristate "Kontron COM Watchdog Timer"
755 depends on MFD_KEMPLD
758 Support for the PLD watchdog on some Kontron ETX and COMexpress
761 This driver can also be built as a module. If so, the module will be
764 config HPWDT_NMI_DECODING
765 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
766 depends on HP_WATCHDOG
769 When an NMI occurs this feature will make the necessary BIOS calls to
770 log the cause of the NMI.
773 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
776 This is a driver for National Semiconductor PC87307/PC97307 hardware
777 watchdog cards as found on the SC1200. This watchdog is mainly used
778 for power management purposes and can be used to power down the device
779 during inactivity periods (includes interrupt activity monitoring).
781 To compile this driver as a module, choose M here: the
782 module will be called sc1200wdt.
784 Most people will say N.
787 tristate "National Semiconductor SCx200 Watchdog"
788 depends on SCx200 && PCI
790 Enable the built-in watchdog timer support on the National
791 Semiconductor SCx200 processors.
793 If compiled as a module, it will be called scx200_wdt.
796 tristate "NS PC87413 watchdog"
799 This is the driver for the hardware watchdog on the PC87413 chipset
800 This watchdog simply watches your kernel to make sure it doesn't
801 freeze, and if it does, it reboots your computer after a certain
804 To compile this driver as a module, choose M here: the
805 module will be called pc87413_wdt.
807 Most people will say N.
810 tristate "nVidia TCO Timer/Watchdog"
811 depends on X86 && PCI
813 Hardware driver for the TCO timer built into the nVidia Hub family
814 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
815 watchdog timer that will reboot the machine after its second
816 expiration. The expiration time can be configured with the
817 "heartbeat" parameter.
819 On some motherboards the driver may fail to reset the chipset's
820 NO_REBOOT flag which prevents the watchdog from rebooting the
821 machine. If this is the case you will get a kernel message like
822 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
824 To compile this driver as a module, choose M here: the
825 module will be called nv_tco.
828 tristate "RDC R-321x SoC watchdog"
829 depends on X86_RDC321X
831 This is the driver for the built in hardware watchdog
832 in the RDC R-321x SoC.
834 To compile this driver as a module, choose M here: the
835 module will be called rdc321x_wdt.
838 tristate "SBC-60XX Watchdog Timer"
841 This driver can be used with the watchdog timer found on some
842 single board computers, namely the 6010 PII based computer.
843 It may well work with other cards. It reads port 0x443 to enable
844 and re-set the watchdog timer, and reads port 0x45 to disable
845 the watchdog. If you have a card that behave in similar ways,
846 you can probably make this driver work with your card as well.
848 You can compile this driver directly into the kernel, or use
849 it as a module. The module will be called sbc60xxwdt.
852 tristate "SBC8360 Watchdog Timer"
856 This is the driver for the hardware watchdog on the SBC8360 Single
857 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
859 To compile this driver as a module, choose M here: the
860 module will be called sbc8360.
862 Most people will say N.
865 tristate "SBC Nano 7240 Watchdog Timer"
866 depends on X86_32 && !UML
868 This is the driver for the hardware watchdog found on the IEI
869 single board computers EPIC Nano 7240 (and likely others). This
870 watchdog simply watches your kernel to make sure it doesn't freeze,
871 and if it does, it reboots your computer after a certain amount of
874 To compile this driver as a module, choose M here: the
875 module will be called sbc7240_wdt.
878 tristate "SMA CPU5 Watchdog"
882 To compile this driver as a module, choose M here: the
883 module will be called cpu5wdt.
885 config SMSC_SCH311X_WDT
886 tristate "SMSC SCH311X Watchdog Timer"
889 This is the driver for the hardware watchdog timer on the
890 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
891 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
894 To compile this driver as a module, choose M here: the
895 module will be called sch311x_wdt.
897 config SMSC37B787_WDT
898 tristate "Winbond SMsC37B787 Watchdog Timer"
901 This is the driver for the hardware watchdog component on the
902 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
903 from Vision Systems and maybe others.
905 This watchdog simply watches your kernel to make sure it doesn't
906 freeze, and if it does, it reboots your computer after a certain
909 Usually a userspace daemon will notify the kernel WDT driver that
910 userspace is still alive, at regular intervals.
912 To compile this driver as a module, choose M here: the
913 module will be called smsc37b787_wdt.
915 Most people will say N.
918 tristate "VIA Watchdog Timer"
919 depends on X86 && PCI
922 This is the driver for the hardware watchdog timer on VIA
923 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
925 To compile this driver as a module, choose M here; the module
926 will be called via_wdt.
928 Most people will say N.
931 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
935 This is the driver for the hardware watchdog on the following
937 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
947 This watchdog simply watches your kernel to make sure it doesn't
948 freeze, and if it does, it reboots your computer after a certain
951 To compile this driver as a module, choose M here: the
952 module will be called w83627hf_wdt.
954 Most people will say N.
957 tristate "W83877F (EMACS) Watchdog Timer"
960 This is the driver for the hardware watchdog on the W83877F chipset
961 as used in EMACS PC-104 motherboards (and likely others). This
962 watchdog simply watches your kernel to make sure it doesn't freeze,
963 and if it does, it reboots your computer after a certain amount of
966 To compile this driver as a module, choose M here: the
967 module will be called w83877f_wdt.
969 Most people will say N.
972 tristate "W83977F (PCM-5335) Watchdog Timer"
975 This is the driver for the hardware watchdog on the W83977F I/O chip
976 as used in AAEON's PCM-5335 SBC (and likely others). This
977 watchdog simply watches your kernel to make sure it doesn't freeze,
978 and if it does, it reboots your computer after a certain amount of
981 To compile this driver as a module, choose M here: the
982 module will be called w83977f_wdt.
985 tristate "ZF MachZ Watchdog"
988 If you are using a ZF Micro MachZ processor, say Y here, otherwise
989 N. This is the driver for the watchdog timer built-in on that
990 processor using ZF-Logic interface. This watchdog simply watches
991 your kernel to make sure it doesn't freeze, and if it does, it
992 reboots your computer after a certain amount of time.
994 To compile this driver as a module, choose M here: the
995 module will be called machzwd.
997 config SBC_EPX_C3_WATCHDOG
998 tristate "Winsystems SBC EPX-C3 watchdog"
1001 This is the driver for the built-in watchdog timer on the EPX-C3
1002 Single-board computer made by Winsystems, Inc.
1004 *Note*: This hardware watchdog is not probeable and thus there
1005 is no way to know if writing to its IO address will corrupt
1006 your system or have any real effect. The only way to be sure
1007 that this driver does what you want is to make sure you
1008 are running it on an EPX-C3 from Winsystems with the watchdog
1009 timer at IO address 0x1ee and 0x1ef. It will write to both those
1010 IO ports. Basically, the assumption is made that if you compile
1011 this driver into your kernel and/or load it as a module, that you
1012 know what you are doing and that you are in fact running on an
1015 To compile this driver as a module, choose M here: the
1016 module will be called sbc_epx_c3.
1022 config M54xx_WATCHDOG
1023 tristate "MCF54xx watchdog support"
1026 To compile this driver as a module, choose M here: the
1027 module will be called m54xx_wdt.
1029 # MicroBlaze Architecture
1034 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1037 Hardware driver for the built-in watchdog timer on the Atheros
1038 AR71XX/AR724X/AR913X SoCs.
1041 tristate "Broadcom BCM47xx Watchdog Timer"
1043 select WATCHDOG_CORE
1045 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1048 tristate "IDT RC32434 SoC Watchdog Timer"
1049 depends on MIKROTIK_RB532
1051 Hardware driver for the IDT RC32434 SoC built-in
1054 To compile this driver as a module, choose M here: the
1055 module will be called rc32434_wdt.
1058 tristate "Indy/I2 Hardware Watchdog"
1059 depends on SGI_HAS_INDYDOG
1061 Hardware driver for the Indy's/I2's watchdog. This is a
1062 watchdog timer that will reboot the machine after a 60 second
1063 timer expired and no process has written to /dev/watchdog during
1067 tristate "Ingenic jz4740 SoC hardware watchdog"
1068 depends on MACH_JZ4740
1069 select WATCHDOG_CORE
1071 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1074 tristate "MTX-1 Hardware Watchdog"
1075 depends on MIPS_MTX1
1077 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1078 will reboot the machine after a 100 seconds timer expired.
1081 tristate "PNX833x Hardware Watchdog"
1082 depends on SOC_PNX8335
1084 Hardware driver for the PNX833x's watchdog. This is a
1085 watchdog timer that will reboot the machine after a programmable
1086 timer has expired and no process has written to /dev/watchdog during
1090 tristate "Sibyte SoC hardware watchdog"
1093 Watchdog driver for the built in watchdog hardware in Sibyte
1094 SoC processors. There are apparently two watchdog timers
1095 on such processors; this driver supports only the first one,
1096 because currently Linux only supports exporting one watchdog
1099 To compile this driver as a loadable module, choose M here.
1100 The module will be called sb_wdog.
1103 tristate "TI AR7 Watchdog Timer"
1106 Hardware driver for the TI AR7 Watchdog Timer.
1109 tristate "Toshiba TXx9 Watchdog Timer"
1110 depends on CPU_TX39XX || CPU_TX49XX
1111 select WATCHDOG_CORE
1113 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1116 tristate "Cavium OCTEON SOC family Watchdog Timer"
1117 depends on CAVIUM_OCTEON_SOC
1119 select EXPORT_UASM if OCTEON_WDT = m
1121 Hardware driver for OCTEON's on chip watchdog timer.
1122 Enables the watchdog for all cores running Linux. It
1123 installs a NMI handler and pokes the watchdog based on an
1124 interrupt. On first expiration of the watchdog, the
1125 interrupt handler pokes it. The second expiration causes an
1126 NMI that prints a message. The third expiration causes a
1129 When userspace has /dev/watchdog open, no poking is done
1130 from the first interrupt, it is then only poked when the
1134 tristate "Broadcom BCM63xx hardware watchdog"
1137 Watchdog driver for the built in watchdog hardware in Broadcom
1140 To compile this driver as a loadable module, choose M here.
1141 The module will be called bcm63xx_wdt.
1144 tristate "Broadcom BCM2835 hardware watchdog"
1145 depends on ARCH_BCM2835
1146 select WATCHDOG_CORE
1148 Watchdog driver for the built in watchdog hardware in Broadcom
1151 To compile this driver as a loadable module, choose M here.
1152 The module will be called bcm2835_wdt.
1155 tristate "BCM Kona Watchdog"
1156 depends on ARCH_BCM_MOBILE
1157 select WATCHDOG_CORE
1159 Support for the watchdog timer on the following Broadcom BCM281xx
1160 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1163 Say 'Y' or 'M' here to enable the driver. The module will be called
1166 config BCM_KONA_WDT_DEBUG
1167 bool "DEBUGFS support for BCM Kona Watchdog"
1168 depends on BCM_KONA_WDT
1170 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1171 access to the driver's internal data structures as well as watchdog
1172 timer hardware registres.
1174 If in doubt, say 'N'.
1177 tristate "Lantiq SoC watchdog"
1180 Hardware driver for the Lantiq SoC Watchdog Timer.
1183 tristate "Ralink SoC watchdog"
1184 select WATCHDOG_CORE
1187 Hardware driver for the Ralink SoC Watchdog Timer.
1189 # PARISC Architecture
1191 # POWERPC Architecture
1194 tristate "GE Watchdog Timer"
1197 Watchdog timer found in a number of GE single board computers.
1200 bool "MPC52xx Watchdog Timer"
1201 depends on PPC_MPC52xx
1203 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1206 tristate "MPC8xxx Platform Watchdog Timer"
1207 depends on PPC_8xx || PPC_83xx || PPC_86xx
1208 select WATCHDOG_CORE
1210 This driver is for a SoC level watchdog that exists on some
1211 Freescale PowerPC processors. So far this driver supports:
1216 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1219 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1223 tristate "PIKA FPGA Watchdog"
1227 This enables the watchdog in the PIKA FPGA. Currently used on
1231 tristate "PowerPC Book-E Watchdog Timer"
1232 depends on BOOKE || 4xx
1233 select WATCHDOG_CORE
1235 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1236 MPC85xx SOCs and the IBM PowerPC 440.
1238 Please see Documentation/watchdog/watchdog-api.txt for
1241 config BOOKE_WDT_DEFAULT_TIMEOUT
1242 int "PowerPC Book-E Watchdog Timer Default Timeout"
1243 depends on BOOKE_WDT
1244 default 38 if PPC_FSL_BOOK3E
1245 range 0 63 if PPC_FSL_BOOK3E
1246 default 3 if !PPC_FSL_BOOK3E
1247 range 0 3 if !PPC_FSL_BOOK3E
1249 Select the default watchdog timer period to be used by the PowerPC
1250 Book-E watchdog driver. A watchdog "event" occurs when the bit
1251 position represented by this number transitions from zero to one.
1253 For Freescale Book-E processors, this is a number between 0 and 63.
1254 For other Book-E processors, this is a number between 0 and 3.
1256 The value can be overridden by the wdt_period command-line parameter.
1259 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1260 select WATCHDOG_CORE
1263 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1265 The driver can also be built as a module. If so, the module will be
1268 If unsure select N here.
1270 # PPC64 Architecture
1272 config WATCHDOG_RTAS
1273 tristate "RTAS watchdog"
1276 This driver adds watchdog support for the RTAS watchdog.
1278 To compile this driver as a module, choose M here. The module
1279 will be called wdrtas.
1284 tristate "z/VM Watchdog Timer"
1287 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1288 provide a virtual watchdog timer to their guest that cause a
1289 user define Control Program command to be executed after a
1292 To compile this driver as a module, choose M here. The module
1293 will be called vmwatchdog.
1295 # SUPERH (sh + sh64) Architecture
1298 tristate "SuperH Watchdog"
1299 depends on SUPERH && (CPU_SH3 || CPU_SH4)
1300 select WATCHDOG_CORE
1302 This driver adds watchdog support for the integrated watchdog in the
1303 SuperH processors. If you have one of these processors and wish
1304 to have watchdog support enabled, say Y, otherwise say N.
1306 As a side note, saying Y here will automatically boost HZ to 1000
1307 so that the timer has a chance to clear the overflow counter. On
1308 slower systems (such as the SH-2 and SH-3) this will likely yield
1309 some performance issues. As such, the WDT should be avoided here
1310 unless it is absolutely necessary.
1312 To compile this driver as a module, choose M here: the
1313 module will be called shwdt.
1315 # SPARC Architecture
1317 # SPARC64 Architecture
1319 config WATCHDOG_CP1XXX
1320 tristate "CP1XXX Hardware Watchdog support"
1321 depends on SPARC64 && PCI
1323 This is the driver for the hardware watchdog timers present on
1324 Sun Microsystems CompactPCI models CP1400 and CP1500.
1326 To compile this driver as a module, choose M here: the
1327 module will be called cpwatchdog.
1329 If you do not have a CompactPCI model CP1400 or CP1500, or
1330 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1331 you should say N to this option.
1334 tristate "RIO Hardware Watchdog support"
1335 depends on SPARC64 && PCI
1337 Say Y here to support the hardware watchdog capability on Sun RIO
1338 machines. The watchdog timeout period is normally one minute but
1339 can be changed with a boot-time parameter.
1341 # XTENSA Architecture
1346 tristate "Xen Watchdog support"
1349 Say Y here to support the hypervisor watchdog capability provided
1350 by Xen 4.0 and newer. The watchdog timeout period is normally one
1351 minute but can be changed with a boot-time parameter.
1354 tristate "UML watchdog"
1358 # ISA-based Watchdog Cards
1361 comment "ISA-based Watchdog Cards"
1365 tristate "Berkshire Products ISA-PC Watchdog"
1368 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1369 This card simply watches your kernel to make sure it doesn't freeze,
1370 and if it does, it reboots your computer after a certain amount of
1371 time. This driver is like the WDT501 driver but for different
1372 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1373 watchdog cards can be ordered from <http://www.berkprod.com/>.
1375 To compile this driver as a module, choose M here: the
1376 module will be called pcwd.
1378 Most people will say N.
1381 tristate "Mixcom Watchdog"
1384 This is a driver for the Mixcom hardware watchdog cards. This
1385 watchdog simply watches your kernel to make sure it doesn't freeze,
1386 and if it does, it reboots your computer after a certain amount of
1389 To compile this driver as a module, choose M here: the
1390 module will be called mixcomwd.
1392 Most people will say N.
1395 tristate "WDT Watchdog timer"
1398 If you have a WDT500P or WDT501P watchdog board, say Y here,
1399 otherwise N. It is not possible to probe for this board, which means
1400 that you have to inform the kernel about the IO port and IRQ that
1401 is needed (you can do this via the io and irq parameters)
1403 To compile this driver as a module, choose M here: the
1404 module will be called wdt.
1407 # PCI-based Watchdog Cards
1410 comment "PCI-based Watchdog Cards"
1413 config PCIPCWATCHDOG
1414 tristate "Berkshire Products PCI-PC Watchdog"
1417 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1418 This card simply watches your kernel to make sure it doesn't freeze,
1419 and if it does, it reboots your computer after a certain amount of
1420 time. The card can also monitor the internal temperature of the PC.
1421 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1423 To compile this driver as a module, choose M here: the
1424 module will be called pcwd_pci.
1426 Most people will say N.
1429 tristate "PCI-WDT500/501 Watchdog timer"
1432 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1434 If you have a PCI-WDT501 watchdog board then you can enable the
1435 temperature sensor by setting the type parameter to 501.
1437 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1438 can do this via the tachometer parameter. Only do this if you have a
1439 fan tachometer actually set up.
1441 To compile this driver as a module, choose M here: the
1442 module will be called wdt_pci.
1445 # USB-based Watchdog Cards
1448 comment "USB-based Watchdog Cards"
1451 config USBPCWATCHDOG
1452 tristate "Berkshire Products USB-PC Watchdog"
1455 This is the driver for the Berkshire Products USB-PC Watchdog card.
1456 This card simply watches your kernel to make sure it doesn't freeze,
1457 and if it does, it reboots your computer after a certain amount of
1458 time. The card can also monitor the internal temperature of the PC.
1459 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1461 To compile this driver as a module, choose M here: the
1462 module will be called pcwd_usb.
1464 Most people will say N.