3 # Watchdog device configuration
7 bool "Watchdog Timer Support"
9 If you say Y here (and to one of the following options) and create a
10 character special file /dev/watchdog with major number 10 and minor
11 number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:
12 subsequently opening the file and then failing to write to it for
13 longer than 1 minute will result in rebooting the machine. This
14 could be useful for a networked machine that needs to come back
15 on-line as fast as possible after a lock-up. There's both a watchdog
16 implementation entirely in software (which can sometimes fail to
17 reboot the machine) and a driver for hardware watchdog boards, which
18 are more robust and can also keep track of the temperature inside
19 your computer. For details, read
20 <file:Documentation/watchdog/watchdog-api.txt> in the kernel source.
22 The watchdog is usually used together with the watchdog daemon
23 which is available from
24 <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can
25 also monitor NFS connections and can reboot the machine when the process
33 bool "WatchDog Timer Driver Core"
35 Say Y here if you want to use the new watchdog timer driver core.
36 This driver provides a framework for all watchdog timer drivers
37 and gives them the /dev/watchdog interface (and later also the
40 config WATCHDOG_NOWAYOUT
41 bool "Disable watchdog shutdown on close"
43 The default watchdog behaviour (which you get if you say N here) is
44 to stop the timer if the process managing it closes the file
45 /dev/watchdog. It's always remotely possible that this process might
46 get killed. If you say Y here, the watchdog cannot be stopped once
49 config WATCHDOG_HANDLE_BOOT_ENABLED
50 bool "Update boot-enabled watchdog until userspace takes over"
53 The default watchdog behaviour (which you get if you say Y here) is
54 to ping watchdog devices that were enabled before the driver has
55 been loaded until control is taken over from userspace using the
56 /dev/watchdog file. If you say N here, the kernel will not update
57 the watchdog on its own. Thus if your userspace does not start fast
58 enough your device will reboot.
61 bool "Read different watchdog information through sysfs"
63 Say Y here if you want to enable watchdog device status read through
67 # General Watchdog drivers
70 comment "Watchdog Device Drivers"
72 # Architecture Independent
75 tristate "Software watchdog"
78 A software monitoring watchdog. This will fail to reboot your system
79 from some situations that the hardware watchdog will recover
80 from. Equally it's a lot cheaper to install.
82 To compile this driver as a module, choose M here: the
83 module will be called softdog.
85 config SOFT_WATCHDOG_PRETIMEOUT
86 bool "Software watchdog pretimeout governor support"
87 depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV
89 Enable this if you want to use pretimeout governors with the software
90 watchdog. Be aware that governors might affect the watchdog because it
91 is purely software, e.g. the panic governor will stall it!
93 config DA9052_WATCHDOG
94 tristate "Dialog DA9052 Watchdog"
95 depends on PMIC_DA9052 || COMPILE_TEST
98 Support for the watchdog in the DA9052 PMIC. Watchdog trigger
101 Say Y here to include support for the DA9052 watchdog.
102 Alternatively say M to compile the driver as a module,
103 which will be called da9052_wdt.
105 config DA9055_WATCHDOG
106 tristate "Dialog Semiconductor DA9055 Watchdog"
107 depends on MFD_DA9055 || COMPILE_TEST
110 If you say yes here you get support for watchdog on the Dialog
111 Semiconductor DA9055 PMIC.
113 This driver can also be built as a module. If so, the module
114 will be called da9055_wdt.
116 config DA9063_WATCHDOG
117 tristate "Dialog DA9063 Watchdog"
118 depends on MFD_DA9063 || COMPILE_TEST
121 Support for the watchdog in the DA9063 PMIC.
123 This driver can be built as a module. The module name is da9063_wdt.
125 config DA9062_WATCHDOG
126 tristate "Dialog DA9062/61 Watchdog"
127 depends on MFD_DA9062 || COMPILE_TEST
130 Support for the watchdog in the DA9062 and DA9061 PMICs.
132 This driver can be built as a module. The module name is da9062_wdt.
135 tristate "Watchdog device controlled through GPIO-line"
139 If you say yes here you get support for watchdog device
140 controlled through GPIO-line.
142 config GPIO_WATCHDOG_ARCH_INITCALL
143 bool "Register the watchdog as early as possible"
144 depends on GPIO_WATCHDOG=y
146 In some situations, the default initcall level (module_init)
147 in not early enough in the boot process to avoid the watchdog
149 If you say yes here, the initcall level would be raised to
153 config MENF21BMC_WATCHDOG
154 tristate "MEN 14F021P00 BMC Watchdog"
155 depends on MFD_MENF21BMC || COMPILE_TEST
159 Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
161 This driver can also be built as a module. If so the module
162 will be called menf21bmc_wdt.
164 config TANGOX_WATCHDOG
165 tristate "Sigma Designs SMP86xx/SMP87xx watchdog"
167 depends on ARCH_TANGO || COMPILE_TEST
170 Support for the watchdog in Sigma Designs SMP86xx (tango3)
171 and SMP87xx (tango4) family chips.
173 This driver can be built as a module. The module name is tangox_wdt.
176 tristate "ACPI Watchdog Action Table (WDAT)"
181 This driver adds support for systems with ACPI Watchdog Action
182 Table (WDAT) table. Servers typically have this but it can be
183 found on some desktop machines as well. This driver will take
184 over the native iTCO watchdog driver found on many Intel CPUs.
186 To compile this driver as module, choose M here: the module will
189 config WM831X_WATCHDOG
190 tristate "WM831x watchdog"
191 depends on MFD_WM831X
194 Support for the watchdog in the WM831x AudioPlus PMICs. When
195 the watchdog triggers the system will be reset.
197 config WM8350_WATCHDOG
198 tristate "WM8350 watchdog"
199 depends on MFD_WM8350
202 Support for the watchdog in the WM8350 AudioPlus PMIC. When
203 the watchdog triggers the system will be reset.
205 config XILINX_WATCHDOG
206 tristate "Xilinx Watchdog timer"
210 Watchdog driver for the xps_timebase_wdt ip core.
212 To compile this driver as a module, choose M here: the
213 module will be called of_xilinx_wdt.
215 config ZIIRAVE_WATCHDOG
216 tristate "Zodiac RAVE Watchdog Timer"
220 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
223 To compile this driver as a module, choose M here: the
224 module will be called ziirave_wdt.
226 config RAVE_SP_WATCHDOG
227 tristate "RAVE SP Watchdog timer"
228 depends on RAVE_SP_CORE
229 depends on NVMEM || !NVMEM
232 Support for the watchdog on RAVE SP device.
238 config ARM_SP805_WATCHDOG
239 tristate "ARM SP805 Watchdog"
240 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
243 ARM Primecell SP805 Watchdog timer. This will reboot your system when
244 the timeout is reached.
246 config ARM_SBSA_WATCHDOG
247 tristate "ARM SBSA Generic Watchdog"
249 depends on ARM_ARCH_TIMER
252 ARM SBSA Generic Watchdog has two stage timeouts:
253 the first signal (WS0) is for alerting the system by interrupt,
254 the second one (WS1) is a real hardware reset.
255 More details: ARM DEN0029B - Server Base System Architecture (SBSA)
257 This driver can operate ARM SBSA Generic Watchdog as a single stage
258 or a two stages watchdog, it depends on the module parameter "action".
260 Note: the maximum timeout in the two stages mode is half of that in
261 the single stage mode.
263 To compile this driver as module, choose M here: The module
264 will be called sbsa_gwdt.
266 config ASM9260_WATCHDOG
267 tristate "Alphascale ASM9260 watchdog"
268 depends on MACH_ASM9260 || COMPILE_TEST
271 select RESET_CONTROLLER
273 Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your
274 system when the timeout is reached.
276 config AT91RM9200_WATCHDOG
277 tristate "AT91RM9200 watchdog"
278 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
280 Watchdog timer embedded into AT91RM9200 chips. This will reboot your
281 system when the timeout is reached.
283 config AT91SAM9X_WATCHDOG
284 tristate "AT91SAM9X / AT91CAP9 watchdog"
285 depends on ARCH_AT91 || COMPILE_TEST
288 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
289 reboot your system when the timeout is reached.
291 config SAMA5D4_WATCHDOG
292 tristate "Atmel SAMA5D4 Watchdog Timer"
293 depends on ARCH_AT91 || COMPILE_TEST
296 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
297 Its Watchdog Timer Mode Register can be written more than once.
298 This will reboot your system when the timeout is reached.
300 config CADENCE_WATCHDOG
301 tristate "Cadence Watchdog Timer"
305 Say Y here if you want to include support for the watchdog
306 timer in the Xilinx Zynq.
308 config 21285_WATCHDOG
309 tristate "DC21285 watchdog"
310 depends on FOOTBRIDGE
312 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
313 here if you wish to use this. Alternatively say M to compile the
314 driver as a module, which will be called wdt285.
316 This driver does not work on all machines. In particular, early CATS
317 boards have hardware problems that will cause the machine to simply
318 lock up if the watchdog fires.
320 "If in doubt, leave it out" - say N.
323 tristate "NetWinder WB83C977 watchdog"
324 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
326 Say Y here to include support for the WB977 watchdog included in
327 NetWinder machines. Alternatively say M to compile the driver as
328 a module, which will be called wdt977.
330 Not sure? It's safe to say N.
332 config FTWDT010_WATCHDOG
333 tristate "Faraday Technology FTWDT010 watchdog"
334 depends on ARM || COMPILE_TEST
338 Say Y here if to include support for the Faraday Technology
339 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
342 To compile this driver as a module, choose M here: the
343 module will be called ftwdt010_wdt.
345 config IXP4XX_WATCHDOG
346 tristate "IXP4xx Watchdog"
347 depends on ARCH_IXP4XX
349 Say Y here if to include support for the watchdog timer
350 in the Intel IXP4xx network processors. This driver can
351 be built as a module by choosing M. The module will
352 be called ixp4xx_wdt.
354 Note: The internal IXP4xx watchdog does a soft CPU reset
355 which doesn't reset any peripherals. There are circumstances
356 where the watchdog will fail to reset the board correctly
357 (e.g., if the boot ROM is in an unreadable state).
359 Say N if you are unsure.
361 config KS8695_WATCHDOG
362 tristate "KS8695 watchdog"
363 depends on ARCH_KS8695
365 Watchdog timer embedded into KS8695 processor. This will reboot your
366 system when the timeout is reached.
368 config HAVE_S3C2410_WATCHDOG
371 This will include watchdog timer support for Samsung SoCs. If
372 you want to include watchdog support for any machine, kindly
373 select this in the respective mach-XXXX/Kconfig file.
375 config S3C2410_WATCHDOG
376 tristate "S3C2410 Watchdog"
377 depends on HAVE_S3C2410_WATCHDOG || COMPILE_TEST
379 select MFD_SYSCON if ARCH_EXYNOS
381 Watchdog timer block in the Samsung SoCs. This will reboot
382 the system when the timer expires with the watchdog enabled.
384 The driver is limited by the speed of the system's PCLK
385 signal, so with reasonably fast systems (PCLK around 50-66MHz)
386 then watchdog intervals of over approximately 20seconds are
389 The driver can be built as a module by choosing M, and will
390 be called s3c2410_wdt
392 config SA1100_WATCHDOG
393 tristate "SA1100/PXA2xx watchdog"
394 depends on ARCH_SA1100 || ARCH_PXA
396 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
397 reboot your system when timeout is reached.
399 NOTE: once enabled, this timer cannot be disabled.
401 To compile this driver as a module, choose M here: the
402 module will be called sa1100_wdt.
405 tristate "Synopsys DesignWare watchdog"
409 Say Y here if to include support for the Synopsys DesignWare
410 watchdog timer found in many chips.
411 To compile this driver as a module, choose M here: the
412 module will be called dw_wdt.
414 config EP93XX_WATCHDOG
415 tristate "EP93xx Watchdog"
416 depends on ARCH_EP93XX || COMPILE_TEST
419 Say Y here if to include support for the watchdog timer
420 embedded in the Cirrus Logic EP93xx family of devices.
422 To compile this driver as a module, choose M here: the
423 module will be called ep93xx_wdt.
426 tristate "OMAP Watchdog"
427 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
430 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y'
431 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
433 config PNX4008_WATCHDOG
434 tristate "LPC32XX Watchdog"
435 depends on ARCH_LPC32XX
438 Say Y here if to include support for the watchdog timer
439 in the LPC32XX processor.
440 This driver can be built as a module by choosing M. The module
441 will be called pnx4008_wdt.
443 Say N if you are unsure.
446 tristate "IOP Watchdog"
447 depends on ARCH_IOP13XX
448 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X)
450 Say Y here if to include support for the watchdog timer
451 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can
452 be built as a module by choosing M. The module will
455 Note: The IOP13XX watchdog does an Internal Bus Reset which will
456 affect both cores and the peripherals of the IOP. The ATU-X
457 and/or ATUe configuration registers will remain intact, but if
458 operating as an Root Complex and/or Central Resource, the PCI-X
459 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER.
461 config DAVINCI_WATCHDOG
462 tristate "DaVinci watchdog"
463 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
466 Say Y here if to include support for the watchdog timer
467 in the DaVinci DM644x/DM646x or Keystone processors.
468 To compile this driver as a module, choose M here: the
469 module will be called davinci_wdt.
471 NOTE: once enabled, this timer cannot be disabled.
472 Say N if you are unsure.
474 config ORION_WATCHDOG
475 tristate "Orion watchdog"
476 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || (COMPILE_TEST && !ARCH_EBSA110)
480 Say Y here if to include support for the watchdog timer
481 in the Marvell Orion5x and Kirkwood ARM SoCs.
482 To compile this driver as a module, choose M here: the
483 module will be called orion_wdt.
485 config RN5T618_WATCHDOG
486 tristate "Ricoh RN5T618 watchdog"
487 depends on MFD_RN5T618 || COMPILE_TEST
490 If you say yes here you get support for watchdog on the Ricoh
493 This driver can also be built as a module. If so, the module
494 will be called rn5t618_wdt.
496 config SUNXI_WATCHDOG
497 tristate "Allwinner SoCs watchdog support"
498 depends on ARCH_SUNXI || COMPILE_TEST
501 Say Y here to include support for the watchdog timer
503 To compile this driver as a module, choose M here: the
504 module will be called sunxi_wdt.
506 config COH901327_WATCHDOG
507 bool "ST-Ericsson COH 901 327 watchdog"
508 depends on ARCH_U300 || (ARM && COMPILE_TEST)
509 default y if MACH_U300
512 Say Y here to include Watchdog timer support for the
513 watchdog embedded into the ST-Ericsson U300 series platforms.
514 This watchdog is used to reset the system and thus cannot be
515 compiled as a module.
517 config NPCM7XX_WATCHDOG
518 bool "Nuvoton NPCM750 watchdog"
519 depends on ARCH_NPCM || COMPILE_TEST
520 default y if ARCH_NPCM750
523 Say Y here to include Watchdog timer support for the
524 watchdog embedded into the NPCM7xx.
525 This watchdog is used to reset the system and thus cannot be
526 compiled as a module.
528 config TWL4030_WATCHDOG
529 tristate "TWL4030 Watchdog"
530 depends on TWL4030_CORE
533 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
534 watchdog timer support for TWL4030 chips.
536 config STMP3XXX_RTC_WATCHDOG
537 tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
538 depends on RTC_DRV_STMP || COMPILE_TEST
541 Say Y here to include support for the watchdog timer inside
542 the RTC for the STMP37XX/378X or i.MX23/28 SoC.
543 To compile this driver as a module, choose M here: the
544 module will be called stmp3xxx_rtc_wdt.
546 config NUC900_WATCHDOG
547 tristate "Nuvoton NUC900 watchdog"
548 depends on ARCH_W90X900 || COMPILE_TEST
550 Say Y here if to include support for the watchdog timer
551 for the Nuvoton NUC900 series SoCs.
552 To compile this driver as a module, choose M here: the
553 module will be called nuc900_wdt.
555 config TS4800_WATCHDOG
556 tristate "TS-4800 Watchdog"
557 depends on HAS_IOMEM && OF
558 depends on SOC_IMX51 || COMPILE_TEST
562 Technologic Systems TS-4800 has watchdog timer implemented in
563 an external FPGA. Say Y here if you want to support for the
564 watchdog timer on TS-4800 board.
566 config TS72XX_WATCHDOG
567 tristate "TS-72XX SBC Watchdog"
568 depends on MACH_TS72XX || COMPILE_TEST
570 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
571 watchdog timer implemented in a external CPLD chip. Say Y here
572 if you want to support for the watchdog timer on TS-72XX boards.
574 To compile this driver as a module, choose M here: the
575 module will be called ts72xx_wdt.
577 config MAX63XX_WATCHDOG
578 tristate "Max63xx watchdog"
582 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
584 config MAX77620_WATCHDOG
585 tristate "Maxim Max77620 Watchdog Timer"
586 depends on MFD_MAX77620 || COMPILE_TEST
588 This is the driver for the Max77620 watchdog timer.
589 Say 'Y' here to enable the watchdog timer support for
590 MAX77620 chips. To compile this driver as a module,
591 choose M here: the module will be called max77620_wdt.
594 tristate "IMX2+ Watchdog"
595 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
599 This is the driver for the hardware watchdog
600 on the Freescale IMX2 and later processors.
601 If you have one of these processors and wish to have
602 watchdog support enabled, say Y, otherwise say N.
604 To compile this driver as a module, choose M here: the
605 module will be called imx2_wdt.
607 config UX500_WATCHDOG
608 tristate "ST-Ericsson Ux500 watchdog"
609 depends on MFD_DB8500_PRCMU
613 Say Y here to include Watchdog timer support for the watchdog
614 existing in the prcmu of ST-Ericsson Ux500 series platforms.
616 To compile this driver as a module, choose M here: the
617 module will be called ux500_wdt.
620 tristate "Retu watchdog"
624 Retu watchdog driver for Nokia Internet Tablets (770, N800,
625 N810). At least on N800 the watchdog cannot be disabled, so
626 this driver is essential and you should enable it.
628 To compile this driver as a module, choose M here: the
629 module will be called retu_wdt.
632 tristate "MOXART watchdog"
633 depends on ARCH_MOXART || COMPILE_TEST
635 Say Y here to include Watchdog timer support for the watchdog
636 existing on the MOXA ART SoC series platforms.
638 To compile this driver as a module, choose M here: the
639 module will be called moxart_wdt.
641 config SIRFSOC_WATCHDOG
642 tristate "SiRFSOC watchdog"
643 depends on ARCH_SIRF || COMPILE_TEST
647 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
648 the watchdog triggers the system will be reset.
650 config ST_LPC_WATCHDOG
651 tristate "STMicroelectronics LPC Watchdog"
652 depends on ARCH_STI || COMPILE_TEST
656 Say Y here to include STMicroelectronics Low Power Controller
657 (LPC) based Watchdog timer support.
659 To compile this driver as a module, choose M here: the
660 module will be called st_lpc_wdt.
662 config TEGRA_WATCHDOG
663 tristate "Tegra watchdog"
664 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
667 Say Y here to include support for the watchdog timer
668 embedded in NVIDIA Tegra SoCs.
670 To compile this driver as a module, choose M here: the
671 module will be called tegra_wdt.
674 tristate "QCOM watchdog"
676 depends on ARCH_QCOM || COMPILE_TEST
679 Say Y here to include Watchdog timer support for the watchdog found
680 on QCOM chipsets. Currently supported targets are the MSM8960,
681 APQ8064, and IPQ8064.
683 To compile this driver as a module, choose M here: the
684 module will be called qcom_wdt.
686 config MESON_GXBB_WATCHDOG
687 tristate "Amlogic Meson GXBB SoCs watchdog support"
688 depends on ARCH_MESON || COMPILE_TEST
691 Say Y here to include support for the watchdog timer
692 in Amlogic Meson GXBB SoCs.
693 To compile this driver as a module, choose M here: the
694 module will be called meson_gxbb_wdt.
696 config MESON_WATCHDOG
697 tristate "Amlogic Meson SoCs watchdog support"
698 depends on ARCH_MESON || COMPILE_TEST
701 Say Y here to include support for the watchdog timer
702 in Amlogic Meson SoCs.
703 To compile this driver as a module, choose M here: the
704 module will be called meson_wdt.
706 config MEDIATEK_WATCHDOG
707 tristate "Mediatek SoCs watchdog support"
708 depends on ARCH_MEDIATEK || COMPILE_TEST
711 Say Y here to include support for the watchdog timer
713 To compile this driver as a module, choose M here: the
714 module will be called mtk_wdt.
716 config DIGICOLOR_WATCHDOG
717 tristate "Conexant Digicolor SoCs watchdog support"
718 depends on ARCH_DIGICOLOR || COMPILE_TEST
721 Say Y here to include support for the watchdog timer
722 in Conexant Digicolor SoCs.
723 To compile this driver as a module, choose M here: the
724 module will be called digicolor_wdt.
726 config LPC18XX_WATCHDOG
727 tristate "LPC18xx/43xx Watchdog"
728 depends on ARCH_LPC18XX || COMPILE_TEST
732 Say Y here if to include support for the watchdog timer
733 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
735 To compile this driver as a module, choose M here: the
736 module will be called lpc18xx_wdt.
738 config ATLAS7_WATCHDOG
739 tristate "CSRatlas7 watchdog"
740 depends on ARCH_ATLAS7 || COMPILE_TEST
742 Say Y here to include Watchdog timer support for the watchdog
743 existing on the CSRatlas7 series platforms.
745 To compile this driver as a module, choose M here: the
746 module will be called atlas7_wdt.
749 tristate "Renesas WDT Watchdog"
750 depends on ARCH_RENESAS || COMPILE_TEST
753 This driver adds watchdog support for the integrated watchdogs in the
754 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
756 config RENESAS_RZAWDT
757 tristate "Renesas RZ/A WDT Watchdog"
758 depends on ARCH_RENESAS || COMPILE_TEST
761 This driver adds watchdog support for the integrated watchdogs in the
762 Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
764 config ASPEED_WATCHDOG
765 tristate "Aspeed BMC watchdog support"
766 depends on ARCH_ASPEED || COMPILE_TEST
769 Say Y here to include support for the watchdog timer
772 This driver is required to reboot the SoC.
774 To compile this driver as a module, choose M here: the
775 module will be called aspeed_wdt.
777 config ZX2967_WATCHDOG
778 tristate "ZTE zx2967 SoCs watchdog support"
782 Say Y here to include support for the watchdog timer
784 To compile this driver as a module, choose M here: the
785 module will be called zx2967_wdt.
787 config STM32_WATCHDOG
788 tristate "STM32 Independent WatchDoG (IWDG) support"
789 depends on ARCH_STM32
793 Say Y here to include support for the watchdog timer
796 To compile this driver as a module, choose M here: the
797 module will be called stm32_iwdg.
799 config UNIPHIER_WATCHDOG
800 tristate "UniPhier watchdog support"
801 depends on ARCH_UNIPHIER || COMPILE_TEST
802 depends on OF && MFD_SYSCON
805 Say Y here to include support watchdog timer embedded
806 into the UniPhier system.
808 To compile this driver as a module, choose M here: the
809 module will be called uniphier_wdt.
811 config RTD119X_WATCHDOG
812 bool "Realtek RTD119x/RTD129x watchdog support"
813 depends on ARCH_REALTEK || COMPILE_TEST
818 Say Y here to include support for the watchdog timer in
819 Realtek RTD1295 SoCs.
822 tristate "Spreadtrum watchdog support"
823 depends on ARCH_SPRD || COMPILE_TEST
826 Say Y here to include watchdog timer supported
827 by Spreadtrum system.
829 # X86 (i386 + ia64 + x86_64) Architecture
832 tristate "Acquire SBC Watchdog Timer"
835 This is the driver for the hardware watchdog on Single Board
836 Computers produced by Acquire Inc (and others). This watchdog
837 simply watches your kernel to make sure it doesn't freeze, and if
838 it does, it reboots your computer after a certain amount of time.
840 To compile this driver as a module, choose M here: the
841 module will be called acquirewdt.
843 Most people will say N.
846 tristate "Advantech SBC Watchdog Timer"
849 If you are configuring a Linux kernel for the Advantech single-board
850 computer, say `Y' here to support its built-in watchdog timer
851 feature. More information can be found at
852 <http://www.advantech.com.tw/products/>
855 tristate "ALi M1535 PMU Watchdog Timer"
856 depends on X86 && PCI
858 This is the driver for the hardware watchdog on the ALi M1535 PMU.
860 To compile this driver as a module, choose M here: the
861 module will be called alim1535_wdt.
863 Most people will say N.
866 tristate "ALi M7101 PMU Computer Watchdog"
869 This is the driver for the hardware watchdog on the ALi M7101 PMU
870 as used in the x86 Cobalt servers and also found in some
871 SPARC Netra servers too.
873 To compile this driver as a module, choose M here: the
874 module will be called alim7101_wdt.
876 Most people will say N.
879 tristate "WinSystems EBC-C384 Watchdog Timer"
884 Enables watchdog timer support for the watchdog timer on the
885 WinSystems EBC-C384 motherboard. The timeout may be configured via
886 the timeout module parameter.
889 tristate "Fintek F718xx, F818xx Super I/O Watchdog"
892 This is the driver for the hardware watchdog on the Fintek F71808E,
893 F71862FG, F71868, F71869, F71882FG, F71889FG, F81865 and F81866
894 Super I/O controllers.
896 You can compile this driver directly into the kernel, or use
897 it as a module. The module will be called f71808e_wdt.
900 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
901 depends on X86 && PCI
904 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
905 (Total Cost of Ownership) timer is a watchdog timer that will reboot
906 the machine after its expiration. The expiration time can be
907 configured with the "heartbeat" parameter.
909 To compile this driver as a module, choose M here: the
910 module will be called sp5100_tco.
913 tristate "AMD Geode CS5535/CS5536 Watchdog"
914 depends on CS5535_MFGPT
916 This driver enables a watchdog capability built into the
917 CS5535/CS5536 companion chips for the AMD Geode GX and LX
918 processors. This watchdog watches your kernel to make sure
919 it doesn't freeze, and if it does, it reboots your computer after
920 a certain amount of time.
922 You can compile this driver directly into the kernel, or use
923 it as a module. The module will be called geodewdt.
926 tristate "AMD Elan SC520 processor Watchdog"
927 depends on MELAN || COMPILE_TEST
929 This is the driver for the hardware watchdog built in to the
930 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
931 This watchdog simply watches your kernel to make sure it doesn't
932 freeze, and if it does, it reboots your computer after a certain
935 You can compile this driver directly into the kernel, or use
936 it as a module. The module will be called sc520_wdt.
938 config SBC_FITPC2_WATCHDOG
939 tristate "Compulab SBC-FITPC2 watchdog"
942 This is the driver for the built-in watchdog timer on the fit-PC2,
943 fit-PC2i, CM-iAM single-board computers made by Compulab.
945 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
946 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
948 Entering BIOS setup temporary disables watchdog operation regardless to current state,
949 so system will not be restarted while user in BIOS setup.
951 Once watchdog was enabled the system will be restarted every
952 "Watchdog Timer Value" period, so to prevent it user can restart or
953 disable the watchdog.
955 To compile this driver as a module, choose M here: the
956 module will be called sbc_fitpc2_wdt.
958 Most people will say N.
961 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
964 Enable support for the watchdog timer on the Eurotech CPU-1220 and
965 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
966 information are at <http://www.eurotech.it/>.
969 tristate "IB700 SBC Watchdog Timer"
972 This is the driver for the hardware watchdog on the IB700 Single
973 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
974 simply watches your kernel to make sure it doesn't freeze, and if
975 it does, it reboots your computer after a certain amount of time.
977 This driver is like the WDT501 driver but for slightly different hardware.
979 To compile this driver as a module, choose M here: the
980 module will be called ib700wdt.
982 Most people will say N.
985 tristate "IBM Automatic Server Restart"
988 This is the driver for the IBM Automatic Server Restart watchdog
989 timer built-in into some eServer xSeries machines.
991 To compile this driver as a module, choose M here: the
992 module will be called ibmasr.
995 tristate "ICP Single Board Computer Watchdog Timer"
998 This is a driver for the hardware watchdog on the ICP Single
999 Board Computer. This driver is working on (at least) the following
1000 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
1002 To compile this driver as a module, choose M here: the
1003 module will be called wafer5823wdt.
1006 tristate "Intel 6300ESB Timer/Watchdog"
1008 select WATCHDOG_CORE
1010 Hardware driver for the watchdog timer built into the Intel
1011 6300ESB controller hub.
1013 To compile this driver as a module, choose M here: the
1014 module will be called i6300esb.
1017 tristate "Intel Atom E6xx Watchdog"
1018 depends on X86 && PCI
1019 select WATCHDOG_CORE
1023 Hardware driver for the watchdog timer built into the Intel
1024 Atom E6XX (TunnelCreek) processor.
1026 To compile this driver as a module, choose M here: the
1027 module will be called ie6xx_wdt.
1029 config INTEL_SCU_WATCHDOG
1030 bool "Intel SCU Watchdog for Mobile Platforms"
1031 depends on X86_INTEL_MID
1033 Hardware driver for the watchdog time built into the Intel SCU
1034 for Intel Mobile Platforms.
1036 To compile this driver as a module, choose M here.
1038 config INTEL_MID_WATCHDOG
1039 tristate "Intel MID Watchdog Timer"
1040 depends on X86_INTEL_MID
1041 select WATCHDOG_CORE
1043 Watchdog timer driver built into the Intel SCU for Intel MID
1046 This driver currently supports only the watchdog evolution
1047 implementation in SCU, available for Merrifield generation.
1049 To compile this driver as a module, choose M here.
1052 tristate "Intel TCO Timer/Watchdog"
1053 depends on (X86 || IA64) && PCI
1054 select WATCHDOG_CORE
1055 depends on I2C || I2C=n
1056 select LPC_ICH if !EXPERT
1057 select I2C_I801 if !EXPERT && I2C
1059 Hardware driver for the intel TCO timer based watchdog devices.
1060 These drivers are included in the Intel 82801 I/O Controller
1061 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1064 The TCO (Total Cost of Ownership) timer is a watchdog timer
1065 that will reboot the machine after its second expiration. The
1066 expiration time can be configured with the "heartbeat" parameter.
1068 On some motherboards the driver may fail to reset the chipset's
1069 NO_REBOOT flag which prevents the watchdog from rebooting the
1070 machine. If this is the case you will get a kernel message like
1071 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1073 To compile this driver as a module, choose M here: the
1074 module will be called iTCO_wdt.
1076 config ITCO_VENDOR_SUPPORT
1077 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1080 Add vendor specific support to the intel TCO timer based watchdog
1081 devices. At this moment we only have additional support for some
1082 SuperMicro Inc. motherboards.
1085 tristate "IT8712F (Smart Guardian) Watchdog Timer"
1088 This is the driver for the built-in watchdog timer on the IT8712F
1089 Super I/0 chipset used on many motherboards.
1091 If the driver does not work, then make sure that the game port in
1092 the BIOS is enabled.
1094 To compile this driver as a module, choose M here: the
1095 module will be called it8712f_wdt.
1098 tristate "IT87 Watchdog Timer"
1100 select WATCHDOG_CORE
1102 This is the driver for the hardware watchdog on the ITE IT8607,
1103 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1104 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1105 IT8783 Super I/O chips.
1107 This watchdog simply watches your kernel to make sure it doesn't
1108 freeze, and if it does, it reboots your computer after a certain
1111 To compile this driver as a module, choose M here: the module will
1115 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1116 select WATCHDOG_CORE
1117 depends on X86 && PCI
1119 A software monitoring watchdog and NMI sourcing driver. This driver
1120 will detect lockups and provide a stack trace. This is a driver that
1121 will only load on an HP ProLiant system with a minimum of iLO2 support.
1122 To compile this driver as a module, choose M here: the module will be
1126 tristate "Kontron COM Watchdog Timer"
1127 depends on MFD_KEMPLD
1128 select WATCHDOG_CORE
1130 Support for the PLD watchdog on some Kontron ETX and COMexpress
1131 (ETXexpress) modules
1133 This driver can also be built as a module. If so, the module will be
1136 config HPWDT_NMI_DECODING
1137 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1138 depends on HP_WATCHDOG
1141 When an NMI occurs this feature will make the necessary BIOS calls to
1142 log the cause of the NMI.
1145 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1148 This is a driver for National Semiconductor PC87307/PC97307 hardware
1149 watchdog cards as found on the SC1200. This watchdog is mainly used
1150 for power management purposes and can be used to power down the device
1151 during inactivity periods (includes interrupt activity monitoring).
1153 To compile this driver as a module, choose M here: the
1154 module will be called sc1200wdt.
1156 Most people will say N.
1159 tristate "National Semiconductor SCx200 Watchdog"
1160 depends on SCx200 && PCI
1162 Enable the built-in watchdog timer support on the National
1163 Semiconductor SCx200 processors.
1165 If compiled as a module, it will be called scx200_wdt.
1168 tristate "NS PC87413 watchdog"
1171 This is the driver for the hardware watchdog on the PC87413 chipset
1172 This watchdog simply watches your kernel to make sure it doesn't
1173 freeze, and if it does, it reboots your computer after a certain
1176 To compile this driver as a module, choose M here: the
1177 module will be called pc87413_wdt.
1179 Most people will say N.
1182 tristate "nVidia TCO Timer/Watchdog"
1183 depends on X86 && PCI
1185 Hardware driver for the TCO timer built into the nVidia Hub family
1186 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
1187 watchdog timer that will reboot the machine after its second
1188 expiration. The expiration time can be configured with the
1189 "heartbeat" parameter.
1191 On some motherboards the driver may fail to reset the chipset's
1192 NO_REBOOT flag which prevents the watchdog from rebooting the
1193 machine. If this is the case you will get a kernel message like
1194 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1196 To compile this driver as a module, choose M here: the
1197 module will be called nv_tco.
1200 tristate "RDC R-321x SoC watchdog"
1201 depends on X86_RDC321X || COMPILE_TEST
1204 This is the driver for the built in hardware watchdog
1205 in the RDC R-321x SoC.
1207 To compile this driver as a module, choose M here: the
1208 module will be called rdc321x_wdt.
1211 tristate "SBC-60XX Watchdog Timer"
1214 This driver can be used with the watchdog timer found on some
1215 single board computers, namely the 6010 PII based computer.
1216 It may well work with other cards. It reads port 0x443 to enable
1217 and re-set the watchdog timer, and reads port 0x45 to disable
1218 the watchdog. If you have a card that behave in similar ways,
1219 you can probably make this driver work with your card as well.
1221 You can compile this driver directly into the kernel, or use
1222 it as a module. The module will be called sbc60xxwdt.
1225 tristate "SBC8360 Watchdog Timer"
1229 This is the driver for the hardware watchdog on the SBC8360 Single
1230 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1232 To compile this driver as a module, choose M here: the
1233 module will be called sbc8360.
1235 Most people will say N.
1238 tristate "SBC Nano 7240 Watchdog Timer"
1239 depends on X86_32 && !UML
1241 This is the driver for the hardware watchdog found on the IEI
1242 single board computers EPIC Nano 7240 (and likely others). This
1243 watchdog simply watches your kernel to make sure it doesn't freeze,
1244 and if it does, it reboots your computer after a certain amount of
1247 To compile this driver as a module, choose M here: the
1248 module will be called sbc7240_wdt.
1251 tristate "SMA CPU5 Watchdog"
1255 To compile this driver as a module, choose M here: the
1256 module will be called cpu5wdt.
1258 config SMSC_SCH311X_WDT
1259 tristate "SMSC SCH311X Watchdog Timer"
1262 This is the driver for the hardware watchdog timer on the
1263 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1264 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1267 To compile this driver as a module, choose M here: the
1268 module will be called sch311x_wdt.
1270 config SMSC37B787_WDT
1271 tristate "Winbond SMsC37B787 Watchdog Timer"
1274 This is the driver for the hardware watchdog component on the
1275 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1276 from Vision Systems and maybe others.
1278 This watchdog simply watches your kernel to make sure it doesn't
1279 freeze, and if it does, it reboots your computer after a certain
1282 Usually a userspace daemon will notify the kernel WDT driver that
1283 userspace is still alive, at regular intervals.
1285 To compile this driver as a module, choose M here: the
1286 module will be called smsc37b787_wdt.
1288 Most people will say N.
1291 tristate "VIA Watchdog Timer"
1292 depends on X86 && PCI
1293 select WATCHDOG_CORE
1295 This is the driver for the hardware watchdog timer on VIA
1296 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1298 To compile this driver as a module, choose M here; the module
1299 will be called via_wdt.
1301 Most people will say N.
1304 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1306 select WATCHDOG_CORE
1308 This is the driver for the hardware watchdog on the following
1310 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1323 This watchdog simply watches your kernel to make sure it doesn't
1324 freeze, and if it does, it reboots your computer after a certain
1327 To compile this driver as a module, choose M here: the
1328 module will be called w83627hf_wdt.
1330 Most people will say N.
1333 tristate "W83877F (EMACS) Watchdog Timer"
1336 This is the driver for the hardware watchdog on the W83877F chipset
1337 as used in EMACS PC-104 motherboards (and likely others). This
1338 watchdog simply watches your kernel to make sure it doesn't freeze,
1339 and if it does, it reboots your computer after a certain amount of
1342 To compile this driver as a module, choose M here: the
1343 module will be called w83877f_wdt.
1345 Most people will say N.
1348 tristate "W83977F (PCM-5335) Watchdog Timer"
1351 This is the driver for the hardware watchdog on the W83977F I/O chip
1352 as used in AAEON's PCM-5335 SBC (and likely others). This
1353 watchdog simply watches your kernel to make sure it doesn't freeze,
1354 and if it does, it reboots your computer after a certain amount of
1357 To compile this driver as a module, choose M here: the
1358 module will be called w83977f_wdt.
1361 tristate "ZF MachZ Watchdog"
1364 If you are using a ZF Micro MachZ processor, say Y here, otherwise
1365 N. This is the driver for the watchdog timer built-in on that
1366 processor using ZF-Logic interface. This watchdog simply watches
1367 your kernel to make sure it doesn't freeze, and if it does, it
1368 reboots your computer after a certain amount of time.
1370 To compile this driver as a module, choose M here: the
1371 module will be called machzwd.
1373 config SBC_EPX_C3_WATCHDOG
1374 tristate "Winsystems SBC EPX-C3 watchdog"
1377 This is the driver for the built-in watchdog timer on the EPX-C3
1378 Single-board computer made by Winsystems, Inc.
1380 *Note*: This hardware watchdog is not probeable and thus there
1381 is no way to know if writing to its IO address will corrupt
1382 your system or have any real effect. The only way to be sure
1383 that this driver does what you want is to make sure you
1384 are running it on an EPX-C3 from Winsystems with the watchdog
1385 timer at IO address 0x1ee and 0x1ef. It will write to both those
1386 IO ports. Basically, the assumption is made that if you compile
1387 this driver into your kernel and/or load it as a module, that you
1388 know what you are doing and that you are in fact running on an
1391 To compile this driver as a module, choose M here: the
1392 module will be called sbc_epx_c3.
1394 config INTEL_MEI_WDT
1395 tristate "Intel MEI iAMT Watchdog"
1396 depends on INTEL_MEI && X86
1397 select WATCHDOG_CORE
1399 A device driver for the Intel MEI iAMT watchdog.
1401 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1402 Whenever the OS hangs or crashes, iAMT will send an event
1403 to any subscriber to this event. The watchdog doesn't reset the
1406 To compile this driver as a module, choose M here:
1407 the module will be called mei_wdt.
1410 tristate "NI 903x/913x Watchdog"
1411 depends on X86 && ACPI
1412 select WATCHDOG_CORE
1414 This is the driver for the watchdog timer on the National Instruments
1415 903x/913x real-time controllers.
1417 To compile this driver as a module, choose M here: the module will be
1421 tristate "NIC7018 Watchdog"
1422 depends on X86 && ACPI
1423 select WATCHDOG_CORE
1425 Support for National Instruments NIC7018 Watchdog.
1427 To compile this driver as a module, choose M here: the module will be
1432 config M54xx_WATCHDOG
1433 tristate "MCF54xx watchdog support"
1436 To compile this driver as a module, choose M here: the
1437 module will be called m54xx_wdt.
1439 # MicroBlaze Architecture
1444 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1445 depends on ATH79 || (ARM && COMPILE_TEST)
1447 Hardware driver for the built-in watchdog timer on the Atheros
1448 AR71XX/AR724X/AR913X SoCs.
1451 tristate "Broadcom BCM47xx Watchdog Timer"
1452 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1453 select WATCHDOG_CORE
1455 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1458 tristate "IDT RC32434 SoC Watchdog Timer"
1459 depends on MIKROTIK_RB532
1461 Hardware driver for the IDT RC32434 SoC built-in
1464 To compile this driver as a module, choose M here: the
1465 module will be called rc32434_wdt.
1468 tristate "Indy/I2 Hardware Watchdog"
1469 depends on SGI_HAS_INDYDOG
1471 Hardware driver for the Indy's/I2's watchdog. This is a
1472 watchdog timer that will reboot the machine after a 60 second
1473 timer expired and no process has written to /dev/watchdog during
1477 tristate "Ingenic jz4740 SoC hardware watchdog"
1478 depends on MACH_JZ4740 || MACH_JZ4780
1479 select WATCHDOG_CORE
1481 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1484 tristate "MTX-1 Hardware Watchdog"
1485 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1487 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1488 will reboot the machine after a 100 seconds timer expired.
1491 tristate "PNX833x Hardware Watchdog"
1492 depends on SOC_PNX8335
1495 Hardware driver for the PNX833x's watchdog. This is a
1496 watchdog timer that will reboot the machine after a programmable
1497 timer has expired and no process has written to /dev/watchdog during
1501 tristate "Sibyte SoC hardware watchdog"
1502 depends on CPU_SB1 || (MIPS && COMPILE_TEST)
1504 Watchdog driver for the built in watchdog hardware in Sibyte
1505 SoC processors. There are apparently two watchdog timers
1506 on such processors; this driver supports only the first one,
1507 because currently Linux only supports exporting one watchdog
1510 To compile this driver as a loadable module, choose M here.
1511 The module will be called sb_wdog.
1514 tristate "TI AR7 Watchdog Timer"
1515 depends on AR7 || (MIPS && COMPILE_TEST)
1517 Hardware driver for the TI AR7 Watchdog Timer.
1520 tristate "Toshiba TXx9 Watchdog Timer"
1521 depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
1522 select WATCHDOG_CORE
1524 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1527 tristate "Cavium OCTEON SOC family Watchdog Timer"
1528 depends on CAVIUM_OCTEON_SOC
1530 select WATCHDOG_CORE
1531 select EXPORT_UASM if OCTEON_WDT = m
1533 Hardware driver for OCTEON's on chip watchdog timer.
1534 Enables the watchdog for all cores running Linux. It
1535 installs a NMI handler and pokes the watchdog based on an
1536 interrupt. On first expiration of the watchdog, the
1537 interrupt handler pokes it. The second expiration causes an
1538 NMI that prints a message. The third expiration causes a
1541 When userspace has /dev/watchdog open, no poking is done
1542 from the first interrupt, it is then only poked when the
1546 tristate "Broadcom BCM63xx hardware watchdog"
1549 Watchdog driver for the built in watchdog hardware in Broadcom
1552 To compile this driver as a loadable module, choose M here.
1553 The module will be called bcm63xx_wdt.
1556 tristate "Broadcom BCM2835 hardware watchdog"
1557 depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1558 select WATCHDOG_CORE
1560 Watchdog driver for the built in watchdog hardware in Broadcom
1563 To compile this driver as a loadable module, choose M here.
1564 The module will be called bcm2835_wdt.
1567 tristate "BCM Kona Watchdog"
1568 depends on ARCH_BCM_MOBILE || COMPILE_TEST
1569 select WATCHDOG_CORE
1571 Support for the watchdog timer on the following Broadcom BCM281xx
1572 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1575 Say 'Y' or 'M' here to enable the driver. The module will be called
1578 config BCM_KONA_WDT_DEBUG
1579 bool "DEBUGFS support for BCM Kona Watchdog"
1580 depends on BCM_KONA_WDT || COMPILE_TEST
1582 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1583 access to the driver's internal data structures as well as watchdog
1584 timer hardware registres.
1586 If in doubt, say 'N'.
1589 tristate "BCM7038 Watchdog"
1590 select WATCHDOG_CORE
1591 depends on HAS_IOMEM
1592 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1594 Watchdog driver for the built-in hardware in Broadcom 7038 and
1595 later SoCs used in set-top boxes. BCM7038 was made public
1596 during the 2004 CES, and since then, many Broadcom chips use this
1597 watchdog block, including some cable modem chips.
1600 tristate "Imagination Technologies PDC Watchdog Timer"
1601 depends on HAS_IOMEM
1602 depends on MIPS || COMPILE_TEST
1603 select WATCHDOG_CORE
1605 Driver for Imagination Technologies PowerDown Controller
1608 To compile this driver as a loadable module, choose M here.
1609 The module will be called imgpdc_wdt.
1612 tristate "Lantiq SoC watchdog"
1615 Hardware driver for the Lantiq SoC Watchdog Timer.
1617 config LOONGSON1_WDT
1618 tristate "Loongson1 SoC hardware watchdog"
1619 depends on MACH_LOONGSON32
1620 select WATCHDOG_CORE
1622 Hardware driver for the Loongson1 SoC Watchdog Timer.
1625 tristate "Ralink SoC watchdog"
1626 select WATCHDOG_CORE
1629 Hardware driver for the Ralink SoC Watchdog Timer.
1632 tristate "Mediatek SoC watchdog"
1633 select WATCHDOG_CORE
1634 depends on SOC_MT7620 || SOC_MT7621
1636 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1639 tristate "Microchip PIC32 hardware watchdog"
1640 select WATCHDOG_CORE
1641 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1643 Watchdog driver for the built in watchdog hardware in a PIC32.
1645 Configuration bits must be set appropriately for the watchdog to be
1646 controlled by this driver.
1648 To compile this driver as a loadable module, choose M here.
1649 The module will be called pic32-wdt.
1652 tristate "Microchip PIC32 Deadman Timer"
1653 select WATCHDOG_CORE
1654 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1656 Watchdog driver for PIC32 instruction fetch counting timer. This specific
1657 timer is typically be used in misson critical and safety critical
1658 applications, where any single failure of the software functionality
1659 and sequencing must be detected.
1661 To compile this driver as a loadable module, choose M here.
1662 The module will be called pic32-dmt.
1664 # PARISC Architecture
1666 # POWERPC Architecture
1669 tristate "GE Watchdog Timer"
1672 Watchdog timer found in a number of GE single board computers.
1675 bool "MPC52xx Watchdog Timer"
1676 depends on PPC_MPC52xx || COMPILE_TEST
1678 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1681 tristate "MPC8xxx Platform Watchdog Timer"
1682 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1683 select WATCHDOG_CORE
1685 This driver is for a SoC level watchdog that exists on some
1686 Freescale PowerPC processors. So far this driver supports:
1691 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1694 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1695 depends on MV64X60 || COMPILE_TEST
1698 tristate "PIKA FPGA Watchdog"
1699 depends on WARP || (PPC64 && COMPILE_TEST)
1702 This enables the watchdog in the PIKA FPGA. Currently used on
1706 tristate "PowerPC Book-E Watchdog Timer"
1707 depends on BOOKE || 4xx
1708 select WATCHDOG_CORE
1710 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1711 MPC85xx SOCs and the IBM PowerPC 440.
1713 Please see Documentation/watchdog/watchdog-api.txt for
1716 config BOOKE_WDT_DEFAULT_TIMEOUT
1717 int "PowerPC Book-E Watchdog Timer Default Timeout"
1718 depends on BOOKE_WDT
1719 default 38 if PPC_FSL_BOOK3E
1720 range 0 63 if PPC_FSL_BOOK3E
1721 default 3 if !PPC_FSL_BOOK3E
1722 range 0 3 if !PPC_FSL_BOOK3E
1724 Select the default watchdog timer period to be used by the PowerPC
1725 Book-E watchdog driver. A watchdog "event" occurs when the bit
1726 position represented by this number transitions from zero to one.
1728 For Freescale Book-E processors, this is a number between 0 and 63.
1729 For other Book-E processors, this is a number between 0 and 3.
1731 The value can be overridden by the wdt_period command-line parameter.
1734 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1735 select WATCHDOG_CORE
1736 depends on GPIOLIB || COMPILE_TEST
1738 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1740 The driver can also be built as a module. If so, the module will be
1743 If unsure select N here.
1745 # PPC64 Architecture
1747 config WATCHDOG_RTAS
1748 tristate "RTAS watchdog"
1751 This driver adds watchdog support for the RTAS watchdog.
1753 To compile this driver as a module, choose M here. The module
1754 will be called wdrtas.
1758 config DIAG288_WATCHDOG
1759 tristate "System z diag288 Watchdog"
1761 select WATCHDOG_CORE
1763 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1764 provide a virtual watchdog timer to their guest that cause a
1765 user define Control Program command to be executed after a
1767 LPAR provides a very similar interface. This driver handles
1770 To compile this driver as a module, choose M here. The module
1771 will be called diag288_wdt.
1773 # SUPERH (sh + sh64) Architecture
1776 tristate "SuperH Watchdog"
1777 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1778 select WATCHDOG_CORE
1780 This driver adds watchdog support for the integrated watchdog in the
1781 SuperH processors. If you have one of these processors and wish
1782 to have watchdog support enabled, say Y, otherwise say N.
1784 As a side note, saying Y here will automatically boost HZ to 1000
1785 so that the timer has a chance to clear the overflow counter. On
1786 slower systems (such as the SH-2 and SH-3) this will likely yield
1787 some performance issues. As such, the WDT should be avoided here
1788 unless it is absolutely necessary.
1790 To compile this driver as a module, choose M here: the
1791 module will be called shwdt.
1793 # SPARC Architecture
1795 # SPARC64 Architecture
1797 config WATCHDOG_CP1XXX
1798 tristate "CP1XXX Hardware Watchdog support"
1799 depends on SPARC64 && PCI
1801 This is the driver for the hardware watchdog timers present on
1802 Sun Microsystems CompactPCI models CP1400 and CP1500.
1804 To compile this driver as a module, choose M here: the
1805 module will be called cpwatchdog.
1807 If you do not have a CompactPCI model CP1400 or CP1500, or
1808 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1809 you should say N to this option.
1812 tristate "RIO Hardware Watchdog support"
1813 depends on SPARC64 && PCI
1815 Say Y here to support the hardware watchdog capability on Sun RIO
1816 machines. The watchdog timeout period is normally one minute but
1817 can be changed with a boot-time parameter.
1819 config WATCHDOG_SUN4V
1820 tristate "Sun4v Watchdog support"
1821 select WATCHDOG_CORE
1824 Say Y here to support the hypervisor watchdog capability embedded
1825 in the SPARC sun4v architecture.
1827 To compile this driver as a module, choose M here. The module will
1828 be called sun4v_wdt.
1830 # XTENSA Architecture
1835 tristate "Xen Watchdog support"
1837 select WATCHDOG_CORE
1839 Say Y here to support the hypervisor watchdog capability provided
1840 by Xen 4.0 and newer. The watchdog timeout period is normally one
1841 minute but can be changed with a boot-time parameter.
1844 tristate "UML watchdog"
1845 depends on UML || COMPILE_TEST
1848 # ISA-based Watchdog Cards
1851 comment "ISA-based Watchdog Cards"
1855 tristate "Berkshire Products ISA-PC Watchdog"
1858 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1859 This card simply watches your kernel to make sure it doesn't freeze,
1860 and if it does, it reboots your computer after a certain amount of
1861 time. This driver is like the WDT501 driver but for different
1862 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1863 watchdog cards can be ordered from <http://www.berkprod.com/>.
1865 To compile this driver as a module, choose M here: the
1866 module will be called pcwd.
1868 Most people will say N.
1871 tristate "Mixcom Watchdog"
1874 This is a driver for the Mixcom hardware watchdog cards. This
1875 watchdog simply watches your kernel to make sure it doesn't freeze,
1876 and if it does, it reboots your computer after a certain amount of
1879 To compile this driver as a module, choose M here: the
1880 module will be called mixcomwd.
1882 Most people will say N.
1885 tristate "WDT Watchdog timer"
1888 If you have a WDT500P or WDT501P watchdog board, say Y here,
1889 otherwise N. It is not possible to probe for this board, which means
1890 that you have to inform the kernel about the IO port and IRQ that
1891 is needed (you can do this via the io and irq parameters)
1893 To compile this driver as a module, choose M here: the
1894 module will be called wdt.
1897 # PCI-based Watchdog Cards
1900 comment "PCI-based Watchdog Cards"
1903 config PCIPCWATCHDOG
1904 tristate "Berkshire Products PCI-PC Watchdog"
1907 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1908 This card simply watches your kernel to make sure it doesn't freeze,
1909 and if it does, it reboots your computer after a certain amount of
1910 time. The card can also monitor the internal temperature of the PC.
1911 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1913 To compile this driver as a module, choose M here: the
1914 module will be called pcwd_pci.
1916 Most people will say N.
1919 tristate "PCI-WDT500/501 Watchdog timer"
1922 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1924 If you have a PCI-WDT501 watchdog board then you can enable the
1925 temperature sensor by setting the type parameter to 501.
1927 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1928 can do this via the tachometer parameter. Only do this if you have a
1929 fan tachometer actually set up.
1931 To compile this driver as a module, choose M here: the
1932 module will be called wdt_pci.
1935 # USB-based Watchdog Cards
1938 comment "USB-based Watchdog Cards"
1941 config USBPCWATCHDOG
1942 tristate "Berkshire Products USB-PC Watchdog"
1945 This is the driver for the Berkshire Products USB-PC Watchdog card.
1946 This card simply watches your kernel to make sure it doesn't freeze,
1947 and if it does, it reboots your computer after a certain amount of
1948 time. The card can also monitor the internal temperature of the PC.
1949 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1951 To compile this driver as a module, choose M here: the
1952 module will be called pcwd_usb.
1954 Most people will say N.
1956 comment "Watchdog Pretimeout Governors"
1958 config WATCHDOG_PRETIMEOUT_GOV
1959 bool "Enable watchdog pretimeout governors"
1961 The option allows to select watchdog pretimeout governors.
1963 if WATCHDOG_PRETIMEOUT_GOV
1966 prompt "Default Watchdog Pretimeout Governor"
1967 default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
1969 This option selects a default watchdog pretimeout governor.
1970 The governor takes its action, if a watchdog is capable
1971 to report a pretimeout event.
1973 config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP
1975 select WATCHDOG_PRETIMEOUT_GOV_NOOP
1977 Use noop watchdog pretimeout governor by default. If noop
1978 governor is selected by a user, write a short message to
1979 the kernel log buffer and don't do any system changes.
1981 config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
1983 select WATCHDOG_PRETIMEOUT_GOV_PANIC
1985 Use panic watchdog pretimeout governor by default, if
1986 a watchdog pretimeout event happens, consider that
1987 a watchdog feeder is dead and reboot is unavoidable.
1991 config WATCHDOG_PRETIMEOUT_GOV_NOOP
1992 tristate "Noop watchdog pretimeout governor"
1994 Noop watchdog pretimeout governor, only an informational
1995 message is added to kernel log buffer.
1997 config WATCHDOG_PRETIMEOUT_GOV_PANIC
1998 tristate "Panic watchdog pretimeout governor"
2000 Panic watchdog pretimeout governor, on watchdog pretimeout
2001 event put the kernel into panic.
2003 endif # WATCHDOG_PRETIMEOUT_GOV