path: root/drivers/watchdog/Kconfig

#
# Watchdog device configuration
#

menuconfig WATCHDOG
	bool "Watchdog Timer Support"
	---help---
	  If you say Y here (and to one of the following options) and create a
	  character special file /dev/watchdog with major number 10 and minor
	  number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:
	  subsequently opening the file and then failing to write to it for
	  longer than 1 minute will result in rebooting the machine. This
	  could be useful for a networked machine that needs to come back
	  on-line as fast as possible after a lock-up. There's both a watchdog
	  implementation entirely in software (which can sometimes fail to
	  reboot the machine) and a driver for hardware watchdog boards, which
	  are more robust and can also keep track of the temperature inside
	  your computer. For details, read
	  <file:Documentation/watchdog/watchdog-api.txt> in the kernel source.

	  The watchdog is usually used together with the watchdog daemon
	  which is available from
	  <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can
	  also monitor NFS connections and can reboot the machine when the process
	  table is full.

	  If unsure, say N.

if WATCHDOG

config WATCHDOG_CORE
	bool "WatchDog Timer Driver Core"
	---help---
	  Say Y here if you want to use the new watchdog timer driver core.
	  This driver provides a framework for all watchdog timer drivers
	  and gives them the /dev/watchdog interface (and later also the
	  sysfs interface).

config WATCHDOG_NOWAYOUT
	bool "Disable watchdog shutdown on close"
	help
	  The default watchdog behaviour (which you get if you say N here) is
	  to stop the timer if the process managing it closes the file
	  /dev/watchdog. It's always remotely possible that this process might
	  get killed. If you say Y here, the watchdog cannot be stopped once
	  it has been started.

#
# General Watchdog drivers
#

comment "Watchdog Device Drivers"

# Architecture Independent

config SOFT_WATCHDOG
	tristate "Software watchdog"
	select WATCHDOG_CORE
	help
	  A software monitoring watchdog. This will fail to reboot your system
	  from some situations that the hardware watchdog will recover
	  from. Equally it's a lot cheaper to install.

	  To compile this driver as a module, choose M here: the
	  module will be called softdog.

config DA9052_WATCHDOG
        tristate "Dialog DA9052 Watchdog"
        depends on PMIC_DA9052
        select WATCHDOG_CORE
        help
          Support for the watchdog in the DA9052 PMIC. Watchdog trigger
          cause system reset.

          Say Y here to include support for the DA9052 watchdog.
          Alternatively say M to compile the driver as a module,
          which will be called da9052_wdt.

config DA9055_WATCHDOG
	tristate "Dialog Semiconductor DA9055 Watchdog"
	depends on MFD_DA9055
	help
	  If you say yes here you get support for watchdog on the Dialog
	  Semiconductor DA9055 PMIC.

	  This driver can also be built as a module.  If so, the module
	  will be called da9055_wdt.

config WM831X_WATCHDOG
	tristate "WM831x watchdog"
	depends on MFD_WM831X
	select WATCHDOG_CORE
	help
	  Support for the watchdog in the WM831x AudioPlus PMICs.  When
	  the watchdog triggers the system will be reset.

config WM8350_WATCHDOG
	tristate "WM8350 watchdog"
	depends on MFD_WM8350
	select WATCHDOG_CORE
	help
	  Support for the watchdog in the WM8350 AudioPlus PMIC.  When
	  the watchdog triggers the system will be reset.

# ALPHA Architecture

# ARM Architecture

config ARM_SP805_WATCHDOG
	tristate "ARM SP805 Watchdog"
	depends on ARM_AMBA
	select WATCHDOG_CORE
	help
	  ARM Primecell SP805 Watchdog timer. This will reboot your system when
	  the timeout is reached.

config AT91RM9200_WATCHDOG
	tristate "AT91RM9200 watchdog"
	depends on ARCH_AT91RM9200
	help
	  Watchdog timer embedded into AT91RM9200 chips. This will reboot your
	  system when the timeout is reached.

config AT91SAM9X_WATCHDOG
	tristate "AT91SAM9X / AT91CAP9 watchdog"
	depends on ARCH_AT91 && !ARCH_AT91RM9200
	help
	  Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
	  reboot your system when the timeout is reached.

config 21285_WATCHDOG
	tristate "DC21285 watchdog"
	depends on FOOTBRIDGE
	help
	  The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
	  here if you wish to use this. Alternatively say M to compile the
	  driver as a module, which will be called wdt285.

	  This driver does not work on all machines. In particular, early CATS
	  boards have hardware problems that will cause the machine to simply
	  lock up if the watchdog fires.

	  "If in doubt, leave it out" - say N.

config 977_WATCHDOG
	tristate "NetWinder WB83C977 watchdog"
	depends on FOOTBRIDGE && ARCH_NETWINDER
	help
	  Say Y here to include support for the WB977 watchdog included in
	  NetWinder machines. Alternatively say M to compile the driver as
	  a module, which will be called wdt977.

	  Not sure? It'