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 TWL4030_WATCHDOG
518 tristate "TWL4030 Watchdog"
519 depends on TWL4030_CORE
522 Support for TI TWL4030 watchdog. Say 'Y' here to enable the
523 watchdog timer support for TWL4030 chips.
525 config STMP3XXX_RTC_WATCHDOG
526 tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
527 depends on RTC_DRV_STMP || COMPILE_TEST
530 Say Y here to include support for the watchdog timer inside
531 the RTC for the STMP37XX/378X or i.MX23/28 SoC.
532 To compile this driver as a module, choose M here: the
533 module will be called stmp3xxx_rtc_wdt.
535 config NUC900_WATCHDOG
536 tristate "Nuvoton NUC900 watchdog"
537 depends on ARCH_W90X900 || COMPILE_TEST
539 Say Y here if to include support for the watchdog timer
540 for the Nuvoton NUC900 series SoCs.
541 To compile this driver as a module, choose M here: the
542 module will be called nuc900_wdt.
544 config TS4800_WATCHDOG
545 tristate "TS-4800 Watchdog"
546 depends on HAS_IOMEM && OF
547 depends on SOC_IMX51 || COMPILE_TEST
551 Technologic Systems TS-4800 has watchdog timer implemented in
552 an external FPGA. Say Y here if you want to support for the
553 watchdog timer on TS-4800 board.
555 config TS72XX_WATCHDOG
556 tristate "TS-72XX SBC Watchdog"
557 depends on MACH_TS72XX || COMPILE_TEST
559 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
560 watchdog timer implemented in a external CPLD chip. Say Y here
561 if you want to support for the watchdog timer on TS-72XX boards.
563 To compile this driver as a module, choose M here: the
564 module will be called ts72xx_wdt.
566 config MAX63XX_WATCHDOG
567 tristate "Max63xx watchdog"
571 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
573 config MAX77620_WATCHDOG
574 tristate "Maxim Max77620 Watchdog Timer"
575 depends on MFD_MAX77620 || COMPILE_TEST
577 This is the driver for the Max77620 watchdog timer.
578 Say 'Y' here to enable the watchdog timer support for
579 MAX77620 chips. To compile this driver as a module,
580 choose M here: the module will be called max77620_wdt.
583 tristate "IMX2+ Watchdog"
584 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
588 This is the driver for the hardware watchdog
589 on the Freescale IMX2 and later processors.
590 If you have one of these processors and wish to have
591 watchdog support enabled, say Y, otherwise say N.
593 To compile this driver as a module, choose M here: the
594 module will be called imx2_wdt.
596 config UX500_WATCHDOG
597 tristate "ST-Ericsson Ux500 watchdog"
598 depends on MFD_DB8500_PRCMU
602 Say Y here to include Watchdog timer support for the watchdog
603 existing in the prcmu of ST-Ericsson Ux500 series platforms.
605 To compile this driver as a module, choose M here: the
606 module will be called ux500_wdt.
609 tristate "Retu watchdog"
613 Retu watchdog driver for Nokia Internet Tablets (770, N800,
614 N810). At least on N800 the watchdog cannot be disabled, so
615 this driver is essential and you should enable it.
617 To compile this driver as a module, choose M here: the
618 module will be called retu_wdt.
621 tristate "MOXART watchdog"
622 depends on ARCH_MOXART || COMPILE_TEST
624 Say Y here to include Watchdog timer support for the watchdog
625 existing on the MOXA ART SoC series platforms.
627 To compile this driver as a module, choose M here: the
628 module will be called moxart_wdt.
630 config SIRFSOC_WATCHDOG
631 tristate "SiRFSOC watchdog"
632 depends on ARCH_SIRF || COMPILE_TEST
636 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When
637 the watchdog triggers the system will be reset.
639 config ST_LPC_WATCHDOG
640 tristate "STMicroelectronics LPC Watchdog"
641 depends on ARCH_STI || COMPILE_TEST
645 Say Y here to include STMicroelectronics Low Power Controller
646 (LPC) based Watchdog timer support.
648 To compile this driver as a module, choose M here: the
649 module will be called st_lpc_wdt.
651 config TEGRA_WATCHDOG
652 tristate "Tegra watchdog"
653 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
656 Say Y here to include support for the watchdog timer
657 embedded in NVIDIA Tegra SoCs.
659 To compile this driver as a module, choose M here: the
660 module will be called tegra_wdt.
663 tristate "QCOM watchdog"
665 depends on ARCH_QCOM || COMPILE_TEST
668 Say Y here to include Watchdog timer support for the watchdog found
669 on QCOM chipsets. Currently supported targets are the MSM8960,
670 APQ8064, and IPQ8064.
672 To compile this driver as a module, choose M here: the
673 module will be called qcom_wdt.
675 config MESON_GXBB_WATCHDOG
676 tristate "Amlogic Meson GXBB SoCs watchdog support"
677 depends on ARCH_MESON || COMPILE_TEST
680 Say Y here to include support for the watchdog timer
681 in Amlogic Meson GXBB SoCs.
682 To compile this driver as a module, choose M here: the
683 module will be called meson_gxbb_wdt.
685 config MESON_WATCHDOG
686 tristate "Amlogic Meson SoCs watchdog support"
687 depends on ARCH_MESON || COMPILE_TEST
690 Say Y here to include support for the watchdog timer
691 in Amlogic Meson SoCs.
692 To compile this driver as a module, choose M here: the
693 module will be called meson_wdt.
695 config MEDIATEK_WATCHDOG
696 tristate "Mediatek SoCs watchdog support"
697 depends on ARCH_MEDIATEK || COMPILE_TEST
700 Say Y here to include support for the watchdog timer
702 To compile this driver as a module, choose M here: the
703 module will be called mtk_wdt.
705 config DIGICOLOR_WATCHDOG
706 tristate "Conexant Digicolor SoCs watchdog support"
707 depends on ARCH_DIGICOLOR || COMPILE_TEST
710 Say Y here to include support for the watchdog timer
711 in Conexant Digicolor SoCs.
712 To compile this driver as a module, choose M here: the
713 module will be called digicolor_wdt.
715 config LPC18XX_WATCHDOG
716 tristate "LPC18xx/43xx Watchdog"
717 depends on ARCH_LPC18XX || COMPILE_TEST
721 Say Y here if to include support for the watchdog timer
722 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
724 To compile this driver as a module, choose M here: the
725 module will be called lpc18xx_wdt.
727 config ATLAS7_WATCHDOG
728 tristate "CSRatlas7 watchdog"
729 depends on ARCH_ATLAS7 || COMPILE_TEST
731 Say Y here to include Watchdog timer support for the watchdog
732 existing on the CSRatlas7 series platforms.
734 To compile this driver as a module, choose M here: the
735 module will be called atlas7_wdt.
738 tristate "Renesas WDT Watchdog"
739 depends on ARCH_RENESAS || COMPILE_TEST
742 This driver adds watchdog support for the integrated watchdogs in the
743 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
745 config RENESAS_RZAWDT
746 tristate "Renesas RZ/A WDT Watchdog"
747 depends on ARCH_RENESAS || COMPILE_TEST
750 This driver adds watchdog support for the integrated watchdogs in the
751 Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
753 config ASPEED_WATCHDOG
754 tristate "Aspeed BMC watchdog support"
755 depends on ARCH_ASPEED || COMPILE_TEST
758 Say Y here to include support for the watchdog timer
761 This driver is required to reboot the SoC.
763 To compile this driver as a module, choose M here: the
764 module will be called aspeed_wdt.
766 config ZX2967_WATCHDOG
767 tristate "ZTE zx2967 SoCs watchdog support"
771 Say Y here to include support for the watchdog timer
773 To compile this driver as a module, choose M here: the
774 module will be called zx2967_wdt.
776 config STM32_WATCHDOG
777 tristate "STM32 Independent WatchDoG (IWDG) support"
778 depends on ARCH_STM32
782 Say Y here to include support for the watchdog timer
785 To compile this driver as a module, choose M here: the
786 module will be called stm32_iwdg.
788 config UNIPHIER_WATCHDOG
789 tristate "UniPhier watchdog support"
790 depends on ARCH_UNIPHIER || COMPILE_TEST
791 depends on OF && MFD_SYSCON
794 Say Y here to include support watchdog timer embedded
795 into the UniPhier system.
797 To compile this driver as a module, choose M here: the
798 module will be called uniphier_wdt.
800 config RTD119X_WATCHDOG
801 bool "Realtek RTD119x/RTD129x watchdog support"
802 depends on ARCH_REALTEK || COMPILE_TEST
807 Say Y here to include support for the watchdog timer in
808 Realtek RTD1295 SoCs.
811 tristate "Spreadtrum watchdog support"
812 depends on ARCH_SPRD || COMPILE_TEST
815 Say Y here to include watchdog timer supported
816 by Spreadtrum system.
818 # X86 (i386 + ia64 + x86_64) Architecture
821 tristate "Acquire SBC Watchdog Timer"
824 This is the driver for the hardware watchdog on Single Board
825 Computers produced by Acquire Inc (and others). This watchdog
826 simply watches your kernel to make sure it doesn't freeze, and if
827 it does, it reboots your computer after a certain amount of time.
829 To compile this driver as a module, choose M here: the
830 module will be called acquirewdt.
832 Most people will say N.
835 tristate "Advantech SBC Watchdog Timer"
838 If you are configuring a Linux kernel for the Advantech single-board
839 computer, say `Y' here to support its built-in watchdog timer
840 feature. More information can be found at
841 <http://www.advantech.com.tw/products/>
844 tristate "ALi M1535 PMU Watchdog Timer"
845 depends on X86 && PCI
847 This is the driver for the hardware watchdog on the ALi M1535 PMU.
849 To compile this driver as a module, choose M here: the
850 module will be called alim1535_wdt.
852 Most people will say N.
855 tristate "ALi M7101 PMU Computer Watchdog"
858 This is the driver for the hardware watchdog on the ALi M7101 PMU
859 as used in the x86 Cobalt servers and also found in some
860 SPARC Netra servers too.
862 To compile this driver as a module, choose M here: the
863 module will be called alim7101_wdt.
865 Most people will say N.
868 tristate "WinSystems EBC-C384 Watchdog Timer"
869 depends on X86 && ISA_BUS_API
872 Enables watchdog timer support for the watchdog timer on the
873 WinSystems EBC-C384 motherboard. The timeout may be configured via
874 the timeout module parameter.
877 tristate "Fintek F718xx, F818xx Super I/O Watchdog"
880 This is the driver for the hardware watchdog on the Fintek F71808E,
881 F71862FG, F71868, F71869, F71882FG, F71889FG, F81865 and F81866
882 Super I/O controllers.
884 You can compile this driver directly into the kernel, or use
885 it as a module. The module will be called f71808e_wdt.
888 tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
889 depends on X86 && PCI
892 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
893 (Total Cost of Ownership) timer is a watchdog timer that will reboot
894 the machine after its expiration. The expiration time can be
895 configured with the "heartbeat" parameter.
897 To compile this driver as a module, choose M here: the
898 module will be called sp5100_tco.
901 tristate "AMD Geode CS5535/CS5536 Watchdog"
902 depends on CS5535_MFGPT
904 This driver enables a watchdog capability built into the
905 CS5535/CS5536 companion chips for the AMD Geode GX and LX
906 processors. This watchdog watches your kernel to make sure
907 it doesn't freeze, and if it does, it reboots your computer after
908 a certain amount of time.
910 You can compile this driver directly into the kernel, or use
911 it as a module. The module will be called geodewdt.
914 tristate "AMD Elan SC520 processor Watchdog"
915 depends on MELAN || COMPILE_TEST
917 This is the driver for the hardware watchdog built in to the
918 AMD "Elan" SC520 microcomputer commonly used in embedded systems.
919 This watchdog simply watches your kernel to make sure it doesn't
920 freeze, and if it does, it reboots your computer after a certain
923 You can compile this driver directly into the kernel, or use
924 it as a module. The module will be called sc520_wdt.
926 config SBC_FITPC2_WATCHDOG
927 tristate "Compulab SBC-FITPC2 watchdog"
930 This is the driver for the built-in watchdog timer on the fit-PC2,
931 fit-PC2i, CM-iAM single-board computers made by Compulab.
933 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux.
934 When "Watchdog Timer Value" enabled one can set 31-255 s operational range.
936 Entering BIOS setup temporary disables watchdog operation regardless to current state,
937 so system will not be restarted while user in BIOS setup.
939 Once watchdog was enabled the system will be restarted every
940 "Watchdog Timer Value" period, so to prevent it user can restart or
941 disable the watchdog.
943 To compile this driver as a module, choose M here: the
944 module will be called sbc_fitpc2_wdt.
946 Most people will say N.
949 tristate "Eurotech CPU-1220/1410 Watchdog Timer"
952 Enable support for the watchdog timer on the Eurotech CPU-1220 and
953 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
954 information are at <http://www.eurotech.it/>.
957 tristate "IB700 SBC Watchdog Timer"
960 This is the driver for the hardware watchdog on the IB700 Single
961 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
962 simply watches your kernel to make sure it doesn't freeze, and if
963 it does, it reboots your computer after a certain amount of time.
965 This driver is like the WDT501 driver but for slightly different hardware.
967 To compile this driver as a module, choose M here: the
968 module will be called ib700wdt.
970 Most people will say N.
973 tristate "IBM Automatic Server Restart"
976 This is the driver for the IBM Automatic Server Restart watchdog
977 timer built-in into some eServer xSeries machines.
979 To compile this driver as a module, choose M here: the
980 module will be called ibmasr.
983 tristate "ICP Single Board Computer Watchdog Timer"
986 This is a driver for the hardware watchdog on the ICP Single
987 Board Computer. This driver is working on (at least) the following
988 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
990 To compile this driver as a module, choose M here: the
991 module will be called wafer5823wdt.
994 tristate "Intel 6300ESB Timer/Watchdog"
998 Hardware driver for the watchdog timer built into the Intel
999 6300ESB controller hub.
1001 To compile this driver as a module, choose M here: the
1002 module will be called i6300esb.
1005 tristate "Intel Atom E6xx Watchdog"
1006 depends on X86 && PCI
1007 select WATCHDOG_CORE
1011 Hardware driver for the watchdog timer built into the Intel
1012 Atom E6XX (TunnelCreek) processor.
1014 To compile this driver as a module, choose M here: the
1015 module will be called ie6xx_wdt.
1017 config INTEL_SCU_WATCHDOG
1018 bool "Intel SCU Watchdog for Mobile Platforms"
1019 depends on X86_INTEL_MID
1021 Hardware driver for the watchdog time built into the Intel SCU
1022 for Intel Mobile Platforms.
1024 To compile this driver as a module, choose M here.
1026 config INTEL_MID_WATCHDOG
1027 tristate "Intel MID Watchdog Timer"
1028 depends on X86_INTEL_MID
1029 select WATCHDOG_CORE
1031 Watchdog timer driver built into the Intel SCU for Intel MID
1034 This driver currently supports only the watchdog evolution
1035 implementation in SCU, available for Merrifield generation.
1037 To compile this driver as a module, choose M here.
1040 tristate "Intel TCO Timer/Watchdog"
1041 depends on (X86 || IA64) && PCI
1042 select WATCHDOG_CORE
1043 depends on I2C || I2C=n
1044 select LPC_ICH if !EXPERT
1045 select I2C_I801 if !EXPERT && I2C
1047 Hardware driver for the intel TCO timer based watchdog devices.
1048 These drivers are included in the Intel 82801 I/O Controller
1049 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
1052 The TCO (Total Cost of Ownership) timer is a watchdog timer
1053 that will reboot the machine after its second expiration. The
1054 expiration time can be configured with the "heartbeat" parameter.
1056 On some motherboards the driver may fail to reset the chipset's
1057 NO_REBOOT flag which prevents the watchdog from rebooting the
1058 machine. If this is the case you will get a kernel message like
1059 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1061 To compile this driver as a module, choose M here: the
1062 module will be called iTCO_wdt.
1064 config ITCO_VENDOR_SUPPORT
1065 bool "Intel TCO Timer/Watchdog Specific Vendor Support"
1068 Add vendor specific support to the intel TCO timer based watchdog
1069 devices. At this moment we only have additional support for some
1070 SuperMicro Inc. motherboards.
1073 tristate "IT8712F (Smart Guardian) Watchdog Timer"
1076 This is the driver for the built-in watchdog timer on the IT8712F
1077 Super I/0 chipset used on many motherboards.
1079 If the driver does not work, then make sure that the game port in
1080 the BIOS is enabled.
1082 To compile this driver as a module, choose M here: the
1083 module will be called it8712f_wdt.
1086 tristate "IT87 Watchdog Timer"
1088 select WATCHDOG_CORE
1090 This is the driver for the hardware watchdog on the ITE IT8607,
1091 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
1092 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
1093 IT8783 Super I/O chips.
1095 This watchdog simply watches your kernel to make sure it doesn't
1096 freeze, and if it does, it reboots your computer after a certain
1099 To compile this driver as a module, choose M here: the module will
1103 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
1104 depends on X86 && PCI
1106 A software monitoring watchdog and NMI sourcing driver. This driver
1107 will detect lockups and provide a stack trace. This is a driver that
1108 will only load on an HP ProLiant system with a minimum of iLO2 support.
1109 To compile this driver as a module, choose M here: the module will be
1113 tristate "Kontron COM Watchdog Timer"
1114 depends on MFD_KEMPLD
1115 select WATCHDOG_CORE
1117 Support for the PLD watchdog on some Kontron ETX and COMexpress
1118 (ETXexpress) modules
1120 This driver can also be built as a module. If so, the module will be
1123 config HPWDT_NMI_DECODING
1124 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
1125 depends on HP_WATCHDOG
1128 When an NMI occurs this feature will make the necessary BIOS calls to
1129 log the cause of the NMI.
1132 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
1135 This is a driver for National Semiconductor PC87307/PC97307 hardware
1136 watchdog cards as found on the SC1200. This watchdog is mainly used
1137 for power management purposes and can be used to power down the device
1138 during inactivity periods (includes interrupt activity monitoring).
1140 To compile this driver as a module, choose M here: the
1141 module will be called sc1200wdt.
1143 Most people will say N.
1146 tristate "National Semiconductor SCx200 Watchdog"
1147 depends on SCx200 && PCI
1149 Enable the built-in watchdog timer support on the National
1150 Semiconductor SCx200 processors.
1152 If compiled as a module, it will be called scx200_wdt.
1155 tristate "NS PC87413 watchdog"
1158 This is the driver for the hardware watchdog on the PC87413 chipset
1159 This watchdog simply watches your kernel to make sure it doesn't
1160 freeze, and if it does, it reboots your computer after a certain
1163 To compile this driver as a module, choose M here: the
1164 module will be called pc87413_wdt.
1166 Most people will say N.
1169 tristate "nVidia TCO Timer/Watchdog"
1170 depends on X86 && PCI
1172 Hardware driver for the TCO timer built into the nVidia Hub family
1173 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
1174 watchdog timer that will reboot the machine after its second
1175 expiration. The expiration time can be configured with the
1176 "heartbeat" parameter.
1178 On some motherboards the driver may fail to reset the chipset's
1179 NO_REBOOT flag which prevents the watchdog from rebooting the
1180 machine. If this is the case you will get a kernel message like
1181 "failed to reset NO_REBOOT flag, reboot disabled by hardware".
1183 To compile this driver as a module, choose M here: the
1184 module will be called nv_tco.
1187 tristate "RDC R-321x SoC watchdog"
1188 depends on X86_RDC321X || COMPILE_TEST
1191 This is the driver for the built in hardware watchdog
1192 in the RDC R-321x SoC.
1194 To compile this driver as a module, choose M here: the
1195 module will be called rdc321x_wdt.
1198 tristate "SBC-60XX Watchdog Timer"
1201 This driver can be used with the watchdog timer found on some
1202 single board computers, namely the 6010 PII based computer.
1203 It may well work with other cards. It reads port 0x443 to enable
1204 and re-set the watchdog timer, and reads port 0x45 to disable
1205 the watchdog. If you have a card that behave in similar ways,
1206 you can probably make this driver work with your card as well.
1208 You can compile this driver directly into the kernel, or use
1209 it as a module. The module will be called sbc60xxwdt.
1212 tristate "SBC8360 Watchdog Timer"
1216 This is the driver for the hardware watchdog on the SBC8360 Single
1217 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
1219 To compile this driver as a module, choose M here: the
1220 module will be called sbc8360.
1222 Most people will say N.
1225 tristate "SBC Nano 7240 Watchdog Timer"
1226 depends on X86_32 && !UML
1228 This is the driver for the hardware watchdog found on the IEI
1229 single board computers EPIC Nano 7240 (and likely others). This
1230 watchdog simply watches your kernel to make sure it doesn't freeze,
1231 and if it does, it reboots your computer after a certain amount of
1234 To compile this driver as a module, choose M here: the
1235 module will be called sbc7240_wdt.
1238 tristate "SMA CPU5 Watchdog"
1242 To compile this driver as a module, choose M here: the
1243 module will be called cpu5wdt.
1245 config SMSC_SCH311X_WDT
1246 tristate "SMSC SCH311X Watchdog Timer"
1249 This is the driver for the hardware watchdog timer on the
1250 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
1251 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
1254 To compile this driver as a module, choose M here: the
1255 module will be called sch311x_wdt.
1257 config SMSC37B787_WDT
1258 tristate "Winbond SMsC37B787 Watchdog Timer"
1261 This is the driver for the hardware watchdog component on the
1262 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
1263 from Vision Systems and maybe others.
1265 This watchdog simply watches your kernel to make sure it doesn't
1266 freeze, and if it does, it reboots your computer after a certain
1269 Usually a userspace daemon will notify the kernel WDT driver that
1270 userspace is still alive, at regular intervals.
1272 To compile this driver as a module, choose M here: the
1273 module will be called smsc37b787_wdt.
1275 Most people will say N.
1278 tristate "VIA Watchdog Timer"
1279 depends on X86 && PCI
1280 select WATCHDOG_CORE
1282 This is the driver for the hardware watchdog timer on VIA
1283 southbridge chipset CX700, VX800/VX820 or VX855/VX875.
1285 To compile this driver as a module, choose M here; the module
1286 will be called via_wdt.
1288 Most people will say N.
1291 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
1293 select WATCHDOG_CORE
1295 This is the driver for the hardware watchdog on the following
1297 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
1310 This watchdog simply watches your kernel to make sure it doesn't
1311 freeze, and if it does, it reboots your computer after a certain
1314 To compile this driver as a module, choose M here: the
1315 module will be called w83627hf_wdt.
1317 Most people will say N.
1320 tristate "W83877F (EMACS) Watchdog Timer"
1323 This is the driver for the hardware watchdog on the W83877F chipset
1324 as used in EMACS PC-104 motherboards (and likely others). This
1325 watchdog simply watches your kernel to make sure it doesn't freeze,
1326 and if it does, it reboots your computer after a certain amount of
1329 To compile this driver as a module, choose M here: the
1330 module will be called w83877f_wdt.
1332 Most people will say N.
1335 tristate "W83977F (PCM-5335) Watchdog Timer"
1338 This is the driver for the hardware watchdog on the W83977F I/O chip
1339 as used in AAEON's PCM-5335 SBC (and likely others). This
1340 watchdog simply watches your kernel to make sure it doesn't freeze,
1341 and if it does, it reboots your computer after a certain amount of
1344 To compile this driver as a module, choose M here: the
1345 module will be called w83977f_wdt.
1348 tristate "ZF MachZ Watchdog"
1351 If you are using a ZF Micro MachZ processor, say Y here, otherwise
1352 N. This is the driver for the watchdog timer built-in on that
1353 processor using ZF-Logic interface. This watchdog simply watches
1354 your kernel to make sure it doesn't freeze, and if it does, it
1355 reboots your computer after a certain amount of time.
1357 To compile this driver as a module, choose M here: the
1358 module will be called machzwd.
1360 config SBC_EPX_C3_WATCHDOG
1361 tristate "Winsystems SBC EPX-C3 watchdog"
1364 This is the driver for the built-in watchdog timer on the EPX-C3
1365 Single-board computer made by Winsystems, Inc.
1367 *Note*: This hardware watchdog is not probeable and thus there
1368 is no way to know if writing to its IO address will corrupt
1369 your system or have any real effect. The only way to be sure
1370 that this driver does what you want is to make sure you
1371 are running it on an EPX-C3 from Winsystems with the watchdog
1372 timer at IO address 0x1ee and 0x1ef. It will write to both those
1373 IO ports. Basically, the assumption is made that if you compile
1374 this driver into your kernel and/or load it as a module, that you
1375 know what you are doing and that you are in fact running on an
1378 To compile this driver as a module, choose M here: the
1379 module will be called sbc_epx_c3.
1381 config INTEL_MEI_WDT
1382 tristate "Intel MEI iAMT Watchdog"
1383 depends on INTEL_MEI && X86
1384 select WATCHDOG_CORE
1386 A device driver for the Intel MEI iAMT watchdog.
1388 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
1389 Whenever the OS hangs or crashes, iAMT will send an event
1390 to any subscriber to this event. The watchdog doesn't reset the
1393 To compile this driver as a module, choose M here:
1394 the module will be called mei_wdt.
1397 tristate "NI 903x/913x Watchdog"
1398 depends on X86 && ACPI
1399 select WATCHDOG_CORE
1401 This is the driver for the watchdog timer on the National Instruments
1402 903x/913x real-time controllers.
1404 To compile this driver as a module, choose M here: the module will be
1408 tristate "NIC7018 Watchdog"
1409 depends on X86 && ACPI
1410 select WATCHDOG_CORE
1412 Support for National Instruments NIC7018 Watchdog.
1414 To compile this driver as a module, choose M here: the module will be
1419 config M54xx_WATCHDOG
1420 tristate "MCF54xx watchdog support"
1423 To compile this driver as a module, choose M here: the
1424 module will be called m54xx_wdt.
1426 # MicroBlaze Architecture
1431 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
1432 depends on ATH79 || (ARM && COMPILE_TEST)
1434 Hardware driver for the built-in watchdog timer on the Atheros
1435 AR71XX/AR724X/AR913X SoCs.
1438 tristate "Broadcom BCM47xx Watchdog Timer"
1439 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
1440 select WATCHDOG_CORE
1442 Hardware driver for the Broadcom BCM47xx Watchdog Timer.
1445 tristate "IDT RC32434 SoC Watchdog Timer"
1446 depends on MIKROTIK_RB532
1448 Hardware driver for the IDT RC32434 SoC built-in
1451 To compile this driver as a module, choose M here: the
1452 module will be called rc32434_wdt.
1455 tristate "Indy/I2 Hardware Watchdog"
1456 depends on SGI_HAS_INDYDOG
1458 Hardware driver for the Indy's/I2's watchdog. This is a
1459 watchdog timer that will reboot the machine after a 60 second
1460 timer expired and no process has written to /dev/watchdog during
1464 tristate "Ingenic jz4740 SoC hardware watchdog"
1465 depends on MACH_JZ4740 || MACH_JZ4780
1466 select WATCHDOG_CORE
1468 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
1471 tristate "MTX-1 Hardware Watchdog"
1472 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
1474 Hardware driver for the MTX-1 boards. This is a watchdog timer that
1475 will reboot the machine after a 100 seconds timer expired.
1478 tristate "PNX833x Hardware Watchdog"
1479 depends on SOC_PNX8335
1482 Hardware driver for the PNX833x's watchdog. This is a
1483 watchdog timer that will reboot the machine after a programmable
1484 timer has expired and no process has written to /dev/watchdog during
1488 tristate "Sibyte SoC hardware watchdog"
1489 depends on CPU_SB1 || (MIPS && COMPILE_TEST)
1491 Watchdog driver for the built in watchdog hardware in Sibyte
1492 SoC processors. There are apparently two watchdog timers
1493 on such processors; this driver supports only the first one,
1494 because currently Linux only supports exporting one watchdog
1497 To compile this driver as a loadable module, choose M here.
1498 The module will be called sb_wdog.
1501 tristate "TI AR7 Watchdog Timer"
1502 depends on AR7 || (MIPS && COMPILE_TEST)
1504 Hardware driver for the TI AR7 Watchdog Timer.
1507 tristate "Toshiba TXx9 Watchdog Timer"
1508 depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
1509 select WATCHDOG_CORE
1511 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
1514 tristate "Cavium OCTEON SOC family Watchdog Timer"
1515 depends on CAVIUM_OCTEON_SOC
1517 select WATCHDOG_CORE
1518 select EXPORT_UASM if OCTEON_WDT = m
1520 Hardware driver for OCTEON's on chip watchdog timer.
1521 Enables the watchdog for all cores running Linux. It
1522 installs a NMI handler and pokes the watchdog based on an
1523 interrupt. On first expiration of the watchdog, the
1524 interrupt handler pokes it. The second expiration causes an
1525 NMI that prints a message. The third expiration causes a
1528 When userspace has /dev/watchdog open, no poking is done
1529 from the first interrupt, it is then only poked when the
1533 tristate "Broadcom BCM63xx hardware watchdog"
1536 Watchdog driver for the built in watchdog hardware in Broadcom
1539 To compile this driver as a loadable module, choose M here.
1540 The module will be called bcm63xx_wdt.
1543 tristate "Broadcom BCM2835 hardware watchdog"
1544 depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
1545 select WATCHDOG_CORE
1547 Watchdog driver for the built in watchdog hardware in Broadcom
1550 To compile this driver as a loadable module, choose M here.
1551 The module will be called bcm2835_wdt.
1554 tristate "BCM Kona Watchdog"
1555 depends on ARCH_BCM_MOBILE || COMPILE_TEST
1556 select WATCHDOG_CORE
1558 Support for the watchdog timer on the following Broadcom BCM281xx
1559 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
1562 Say 'Y' or 'M' here to enable the driver. The module will be called
1565 config BCM_KONA_WDT_DEBUG
1566 bool "DEBUGFS support for BCM Kona Watchdog"
1567 depends on BCM_KONA_WDT || COMPILE_TEST
1569 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
1570 access to the driver's internal data structures as well as watchdog
1571 timer hardware registres.
1573 If in doubt, say 'N'.
1576 tristate "BCM7038 Watchdog"
1577 select WATCHDOG_CORE
1578 depends on HAS_IOMEM
1579 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
1581 Watchdog driver for the built-in hardware in Broadcom 7038 and
1582 later SoCs used in set-top boxes. BCM7038 was made public
1583 during the 2004 CES, and since then, many Broadcom chips use this
1584 watchdog block, including some cable modem chips.
1587 tristate "Imagination Technologies PDC Watchdog Timer"
1588 depends on HAS_IOMEM
1589 depends on MIPS || COMPILE_TEST
1590 select WATCHDOG_CORE
1592 Driver for Imagination Technologies PowerDown Controller
1595 To compile this driver as a loadable module, choose M here.
1596 The module will be called imgpdc_wdt.
1599 tristate "Lantiq SoC watchdog"
1602 Hardware driver for the Lantiq SoC Watchdog Timer.
1604 config LOONGSON1_WDT
1605 tristate "Loongson1 SoC hardware watchdog"
1606 depends on MACH_LOONGSON32
1607 select WATCHDOG_CORE
1609 Hardware driver for the Loongson1 SoC Watchdog Timer.
1612 tristate "Ralink SoC watchdog"
1613 select WATCHDOG_CORE
1616 Hardware driver for the Ralink SoC Watchdog Timer.
1619 tristate "Mediatek SoC watchdog"
1620 select WATCHDOG_CORE
1621 depends on SOC_MT7620 || SOC_MT7621
1623 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
1626 tristate "Microchip PIC32 hardware watchdog"
1627 select WATCHDOG_CORE
1628 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1630 Watchdog driver for the built in watchdog hardware in a PIC32.
1632 Configuration bits must be set appropriately for the watchdog to be
1633 controlled by this driver.
1635 To compile this driver as a loadable module, choose M here.
1636 The module will be called pic32-wdt.
1639 tristate "Microchip PIC32 Deadman Timer"
1640 select WATCHDOG_CORE
1641 depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
1643 Watchdog driver for PIC32 instruction fetch counting timer. This specific
1644 timer is typically be used in misson critical and safety critical
1645 applications, where any single failure of the software functionality
1646 and sequencing must be detected.
1648 To compile this driver as a loadable module, choose M here.
1649 The module will be called pic32-dmt.
1651 # PARISC Architecture
1653 # POWERPC Architecture
1656 tristate "GE Watchdog Timer"
1659 Watchdog timer found in a number of GE single board computers.
1662 bool "MPC52xx Watchdog Timer"
1663 depends on PPC_MPC52xx || COMPILE_TEST
1665 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
1668 tristate "MPC8xxx Platform Watchdog Timer"
1669 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
1670 select WATCHDOG_CORE
1672 This driver is for a SoC level watchdog that exists on some
1673 Freescale PowerPC processors. So far this driver supports:
1678 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
1681 tristate "MV64X60 (Marvell Discovery) Watchdog Timer"
1682 depends on MV64X60 || COMPILE_TEST
1685 tristate "PIKA FPGA Watchdog"
1686 depends on WARP || (PPC64 && COMPILE_TEST)
1689 This enables the watchdog in the PIKA FPGA. Currently used on
1693 tristate "PowerPC Book-E Watchdog Timer"
1694 depends on BOOKE || 4xx
1695 select WATCHDOG_CORE
1697 Watchdog driver for PowerPC Book-E chips, such as the Freescale
1698 MPC85xx SOCs and the IBM PowerPC 440.
1700 Please see Documentation/watchdog/watchdog-api.txt for
1703 config BOOKE_WDT_DEFAULT_TIMEOUT
1704 int "PowerPC Book-E Watchdog Timer Default Timeout"
1705 depends on BOOKE_WDT
1706 default 38 if PPC_FSL_BOOK3E
1707 range 0 63 if PPC_FSL_BOOK3E
1708 default 3 if !PPC_FSL_BOOK3E
1709 range 0 3 if !PPC_FSL_BOOK3E
1711 Select the default watchdog timer period to be used by the PowerPC
1712 Book-E watchdog driver. A watchdog "event" occurs when the bit
1713 position represented by this number transitions from zero to one.
1715 For Freescale Book-E processors, this is a number between 0 and 63.
1716 For other Book-E processors, this is a number between 0 and 3.
1718 The value can be overridden by the wdt_period command-line parameter.
1721 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
1722 select WATCHDOG_CORE
1723 depends on GPIOLIB || COMPILE_TEST
1725 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
1727 The driver can also be built as a module. If so, the module will be
1730 If unsure select N here.
1732 # PPC64 Architecture
1734 config WATCHDOG_RTAS
1735 tristate "RTAS watchdog"
1738 This driver adds watchdog support for the RTAS watchdog.
1740 To compile this driver as a module, choose M here. The module
1741 will be called wdrtas.
1745 config DIAG288_WATCHDOG
1746 tristate "System z diag288 Watchdog"
1748 select WATCHDOG_CORE
1750 IBM s/390 and zSeries machines running under z/VM 5.1 or later
1751 provide a virtual watchdog timer to their guest that cause a
1752 user define Control Program command to be executed after a
1754 LPAR provides a very similar interface. This driver handles
1757 To compile this driver as a module, choose M here. The module
1758 will be called diag288_wdt.
1760 # SUPERH (sh + sh64) Architecture
1763 tristate "SuperH Watchdog"
1764 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
1765 select WATCHDOG_CORE
1767 This driver adds watchdog support for the integrated watchdog in the
1768 SuperH processors. If you have one of these processors and wish
1769 to have watchdog support enabled, say Y, otherwise say N.
1771 As a side note, saying Y here will automatically boost HZ to 1000
1772 so that the timer has a chance to clear the overflow counter. On
1773 slower systems (such as the SH-2 and SH-3) this will likely yield
1774 some performance issues. As such, the WDT should be avoided here
1775 unless it is absolutely necessary.
1777 To compile this driver as a module, choose M here: the
1778 module will be called shwdt.
1780 # SPARC Architecture
1782 # SPARC64 Architecture
1784 config WATCHDOG_CP1XXX
1785 tristate "CP1XXX Hardware Watchdog support"
1786 depends on SPARC64 && PCI
1788 This is the driver for the hardware watchdog timers present on
1789 Sun Microsystems CompactPCI models CP1400 and CP1500.
1791 To compile this driver as a module, choose M here: the
1792 module will be called cpwatchdog.
1794 If you do not have a CompactPCI model CP1400 or CP1500, or
1795 another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
1796 you should say N to this option.
1799 tristate "RIO Hardware Watchdog support"
1800 depends on SPARC64 && PCI
1802 Say Y here to support the hardware watchdog capability on Sun RIO
1803 machines. The watchdog timeout period is normally one minute but
1804 can be changed with a boot-time parameter.
1806 config WATCHDOG_SUN4V
1807 tristate "Sun4v Watchdog support"
1808 select WATCHDOG_CORE
1811 Say Y here to support the hypervisor watchdog capability embedded
1812 in the SPARC sun4v architecture.
1814 To compile this driver as a module, choose M here. The module will
1815 be called sun4v_wdt.
1817 # XTENSA Architecture
1822 tristate "Xen Watchdog support"
1824 select WATCHDOG_CORE
1826 Say Y here to support the hypervisor watchdog capability provided
1827 by Xen 4.0 and newer. The watchdog timeout period is normally one
1828 minute but can be changed with a boot-time parameter.
1831 tristate "UML watchdog"
1832 depends on UML || COMPILE_TEST
1835 # ISA-based Watchdog Cards
1838 comment "ISA-based Watchdog Cards"
1842 tristate "Berkshire Products ISA-PC Watchdog"
1845 This is the driver for the Berkshire Products ISA-PC Watchdog card.
1846 This card simply watches your kernel to make sure it doesn't freeze,
1847 and if it does, it reboots your computer after a certain amount of
1848 time. This driver is like the WDT501 driver but for different
1849 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
1850 watchdog cards can be ordered from <http://www.berkprod.com/>.
1852 To compile this driver as a module, choose M here: the
1853 module will be called pcwd.
1855 Most people will say N.
1858 tristate "Mixcom Watchdog"
1861 This is a driver for the Mixcom hardware watchdog cards. This
1862 watchdog simply watches your kernel to make sure it doesn't freeze,
1863 and if it does, it reboots your computer after a certain amount of
1866 To compile this driver as a module, choose M here: the
1867 module will be called mixcomwd.
1869 Most people will say N.
1872 tristate "WDT Watchdog timer"
1875 If you have a WDT500P or WDT501P watchdog board, say Y here,
1876 otherwise N. It is not possible to probe for this board, which means
1877 that you have to inform the kernel about the IO port and IRQ that
1878 is needed (you can do this via the io and irq parameters)
1880 To compile this driver as a module, choose M here: the
1881 module will be called wdt.
1884 # PCI-based Watchdog Cards
1887 comment "PCI-based Watchdog Cards"
1890 config PCIPCWATCHDOG
1891 tristate "Berkshire Products PCI-PC Watchdog"
1894 This is the driver for the Berkshire Products PCI-PC Watchdog card.
1895 This card simply watches your kernel to make sure it doesn't freeze,
1896 and if it does, it reboots your computer after a certain amount of
1897 time. The card can also monitor the internal temperature of the PC.
1898 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
1900 To compile this driver as a module, choose M here: the
1901 module will be called pcwd_pci.
1903 Most people will say N.
1906 tristate "PCI-WDT500/501 Watchdog timer"
1909 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
1911 If you have a PCI-WDT501 watchdog board then you can enable the
1912 temperature sensor by setting the type parameter to 501.
1914 If you want to enable the Fan Tachometer on the PCI-WDT501, then you
1915 can do this via the tachometer parameter. Only do this if you have a
1916 fan tachometer actually set up.
1918 To compile this driver as a module, choose M here: the
1919 module will be called wdt_pci.
1922 # USB-based Watchdog Cards
1925 comment "USB-based Watchdog Cards"
1928 config USBPCWATCHDOG
1929 tristate "Berkshire Products USB-PC Watchdog"
1932 This is the driver for the Berkshire Products USB-PC Watchdog card.
1933 This card simply watches your kernel to make sure it doesn't freeze,
1934 and if it does, it reboots your computer after a certain amount of
1935 time. The card can also monitor the internal temperature of the PC.
1936 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
1938 To compile this driver as a module, choose M here: the
1939 module will be called pcwd_usb.
1941 Most people will say N.
1943 comment "Watchdog Pretimeout Governors"
1945 config WATCHDOG_PRETIMEOUT_GOV
1946 bool "Enable watchdog pretimeout governors"
1948 The option allows to select watchdog pretimeout governors.
1950 if WATCHDOG_PRETIMEOUT_GOV
1953 prompt "Default Watchdog Pretimeout Governor"
1954 default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
1956 This option selects a default watchdog pretimeout governor.
1957 The governor takes its action, if a watchdog is capable
1958 to report a pretimeout event.
1960 config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP
1962 select WATCHDOG_PRETIMEOUT_GOV_NOOP
1964 Use noop watchdog pretimeout governor by default. If noop
1965 governor is selected by a user, write a short message to
1966 the kernel log buffer and don't do any system changes.
1968 config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
1970 select WATCHDOG_PRETIMEOUT_GOV_PANIC
1972 Use panic watchdog pretimeout governor by default, if
1973 a watchdog pretimeout event happens, consider that
1974 a watchdog feeder is dead and reboot is unavoidable.
1978 config WATCHDOG_PRETIMEOUT_GOV_NOOP
1979 tristate "Noop watchdog pretimeout governor"
1981 Noop watchdog pretimeout governor, only an informational
1982 message is added to kernel log buffer.
1984 config WATCHDOG_PRETIMEOUT_GOV_PANIC
1985 tristate "Panic watchdog pretimeout governor"
1987 Panic watchdog pretimeout governor, on watchdog pretimeout
1988 event put the kernel into panic.
1990 endif # WATCHDOG_PRETIMEOUT_GOV