xref: /linux/drivers/watchdog/Kconfig

# SPDX-License-Identifier: GPL-2.0-only

#
# 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.rst> in the kernel source.

	  The watchdog is usually used together with the watchdog daemon
	  which is available from
	  <https://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
	tristate "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.

config WATCHDOG_HANDLE_BOOT_ENABLED
	bool "Update boot-enabled watchdog until userspace takes over"
	default y
	help
	  The default watchdog behaviour (which you get if you say Y here) is
	  to ping watchdog devices that were enabled before the driver has
	  been loaded until control is taken over from userspace using the
	  /dev/watchdog file. If you say N here, the kernel will not update
	  the watchdog on its own. Thus if your userspace does not start fast
	  enough your device will reboot.

config WATCHDOG_OPEN_TIMEOUT
	int "Timeout value for opening watchdog device"
	default 0
	help
	  The maximum time, in seconds, for which the watchdog framework takes
	  care of pinging a hardware watchdog.  A value of 0 means infinite. The
	  value set here can be overridden by the commandline parameter
	  "watchdog.open_timeout".

config WATCHDOG_SYSFS
	bool "Read different watchdog information through sysfs"
	help
	  Say Y here if you want to enable watchdog device status read through
	  sysfs attributes.

config WATCHDOG_HRTIMER_PRETIMEOUT
	bool "Enable watchdog hrtimer-based pretimeouts"
	help
	  Enable this if you want to use a hrtimer timer based pretimeout for
	  watchdogs that do not natively support pretimeout support. Be aware
	  that because this pretimeout functionality uses hrtimers, it may not
	  be able to fire before the actual watchdog fires in some situations.

comment "Watchdog Pretimeout Governors"

config WATCHDOG_PRETIMEOUT_GOV
	bool "Enable watchdog pretimeout governors"
	depends on WATCHDOG_CORE
	help
	  The option allows to select watchdog pretimeout governors.

config WATCHDOG_PRETIMEOUT_GOV_SEL
	tristate
	depends on WATCHDOG_PRETIMEOUT_GOV
	default m
	select WATCHDOG_PRETIMEOUT_GOV_PANIC if WATCHDOG_PRETIMEOUT_GOV_NOOP=n

if WATCHDOG_PRETIMEOUT_GOV

config WATCHDOG_PRETIMEOUT_GOV_NOOP
	tristate "Noop watchdog pretimeout governor"
	depends on WATCHDOG_CORE
	default WATCHDOG_CORE
	help
	  Noop watchdog pretimeout governor, only an informational
	  message is added to kernel log buffer.

config WATCHDOG_PRETIMEOUT_GOV_PANIC
	tristate "Panic watchdog pretimeout governor"
	depends on WATCHDOG_CORE
	default WATCHDOG_CORE
	help
	  Panic watchdog pretimeout governor, on watchdog pretimeout
	  event put the kernel into panic.

choice
	prompt "Default Watchdog Pretimeout Governor"
	default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
	help
	  This option selects a default watchdog pretimeout governor.
	  The governor takes its action, if a watchdog is capable
	  to report a pretimeout event.

config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP
	bool "noop"
	depends on WATCHDOG_PRETIMEOUT_GOV_NOOP
	help
	  Use noop watchdog pretimeout governor by default. If noop
	  governor is selected by a user, write a short message to
	  the kernel log buffer and don't do any system changes.

config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
	bool "panic"
	depends on WATCHDOG_PRETIMEOUT_GOV_PANIC
	help
	  Use panic watchdog pretimeout governor by default, if
	  a watchdog pretimeout event happens, consider that
	  a watchdog feeder is dead and reboot is unavoidable.

endchoice

endif # WATCHDOG_PRETIMEOUT_GOV

#
# 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 SOFT_WATCHDOG_PRETIMEOUT
	bool "Software watchdog pretimeout governor support"
	depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV
	help
	  Enable this if you want to use pretimeout governors with the software
	  watchdog. Be aware that governors might affect the watchdog because it
	  is purely software, e.g. the panic governor will stall it!

config BD957XMUF_WATCHDOG
	tristate "ROHM BD9576MUF and BD9573MUF PMIC Watchdog"
	depends on MFD_ROHM_BD957XMUF
	select WATCHDOG_CORE
	help
	  Support for the watchdog in the ROHM BD9576 and BD9573 PMICs.
	  These PMIC ICs contain watchdog block which can be configured
	  to toggle reset line if SoC fails to ping watchdog via GPIO.

	  Say Y here to include support for the ROHM BD9576 or BD9573
	  watchdog. Alternatively say M to compile the driver as a module,
	  which will be called bd9576_wdt.

config DA9052_WATCHDOG
	tristate "Dialog DA9052 Watchdog"
	depends on PMIC_DA9052 || COMPILE_TEST
	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 || COMPILE_TEST
	select WATCHDOG_CORE
	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 DA9063_WATCHDOG
	tristate "Dialog DA9063 Watchdog"
	depends on MFD_DA9063 || COMPILE_TEST
	select WATCHDOG_CORE
	help
	  Support for the watchdog in the DA9063 PMIC.

	  This driver can be built as a module. The module name is da9063_wdt.

config DA9062_WATCHDOG
	tristate "Dialog DA9062/61 Watchdog"
	depends on MFD_DA9062 || COMPILE_TEST
	depends on I2C
	select WATCHDOG_CORE
	help
	  Support for the watchdog in the DA9062 and DA9061 PMICs.

	  This driver can be built as a module. The module name is da9062_wdt.

config GPIO_WATCHDOG
	tristate "Watchdog device controlled through GPIO-line"
	depends on OF_GPIO
	select WATCHDOG_CORE
	help
	  If you say yes here you get support for watchdog device
	  controlled through GPIO-line.

config GPIO_WATCHDOG_ARCH_INITCALL
	bool "Register the watchdog as early as possible"
	depends on GPIO_WATCHDOG=y
	help
	  In some situations, the default initcall level (module_init)
	  in not early enough in the boot process to avoid the watchdog
	  to be triggered.
	  If you say yes here, the initcall level would be raised to
	  arch_initcall.
	  If in doubt, say N.

config MENF21BMC_WATCHDOG
	tristate "MEN 14F021P00 BMC Watchdog"
	depends on MFD_MENF21BMC || COMPILE_TEST
	depends on I2C
	select WATCHDOG_CORE
	help
	  Say Y here to include support for the MEN 14F021P00 BMC Watchdog.

	  This driver can also be built as a module. If so the module
	  will be called menf21bmc_wdt.

config MENZ069_WATCHDOG
	tristate "MEN 16Z069 Watchdog"
	depends on MCB
	select WATCHDOG_CORE
	help
	  Say Y here to include support for the MEN 16Z069 Watchdog.

	  This driver can also be built as a module. If so the module
	  will be called menz069_wdt.

config WDAT_WDT
	tristate "ACPI Watchdog Action Table (WDAT)"
	depends on ACPI
	select WATCHDOG_CORE
	select ACPI_WATCHDOG
	help
	  This driver adds support for systems with ACPI Watchdog Action
	  Table (WDAT) table. Servers typically have this but it can be
	  found on some desktop machines as well. This driver will take
	  over the native iTCO watchdog driver found on many Intel CPUs.

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

config XILINX_WATCHDOG
	tristate "Xilinx Watchdog timer"
	depends on HAS_IOMEM
	select WATCHDOG_CORE
	help
	  Watchdog driver for the xps_timebase_wdt IP core.

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

config ZIIRAVE_WATCHDOG
	tristate "Zodiac RAVE Watchdog Timer"
	depends on I2C
	select WATCHDOG_CORE
	help
	  Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
	  Processor.

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

config RAVE_SP_WATCHDOG
	tristate "RAVE SP Watchdog timer"
	depends on RAVE_SP_CORE
	depends on NVMEM || !NVMEM
	select WATCHDOG_CORE
	help
	  Support for the watchdog on RAVE SP device.

config MLX_WDT
	tristate "Mellanox Watchdog"
	depends on MELLANOX_PLATFORM
	select WATCHDOG_CORE
	select REGMAP
	help
	  This is the driver for the hardware watchdog on Mellanox systems.
	  If you are going to use it, say Y here, otherwise N.
	  This driver can be used together with the watchdog daemon.
	  It can also watch your kernel to make sure it doesn't freeze,
	  and if it does, it reboots your system after a certain amount of
	  time.

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

config SL28CPLD_WATCHDOG
	tristate "Kontron sl28cpld Watchdog"
	depends on MFD_SL28CPLD || COMPILE_TEST
	select WATCHDOG_CORE
	help
	  Say Y here to include support for the watchdog timer
	  on the Kontron sl28 CPLD.

	  To compile this driver as a module, choose M here: the
	  module will be called sl28cpld_wdt.

# ALPHA Architecture

# ARM Architecture

config ARM_SP805_WATCHDOG
	tristate "ARM SP805 Watchdog"
	depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
	select WATCHDOG_CORE
	help
	  ARM Primecell SP805 Watchdog timer. This will reboot your system when
	  the timeout is reached.

config ARM_SBSA_WATCHDOG
	tristate "ARM SBSA Generic Watchdog"
	depends on ARM64
	depends on ARM_ARCH_TIMER
	select WATCHDOG_CORE
	help
	  ARM SBSA Generic Watchdog has two stage timeouts:
	  the first signal (WS0) is for alerting the system by interrupt,
	  the second one (WS1) is a real hardware reset.
	  More details: ARM DEN0029B - Server Base System Architecture (SBSA)

	  This driver can operate ARM SBSA Generic Watchdog as a single stage
	  or a two stages watchdog, it depends on the module parameter "action".

	  Note: the maximum timeout in the two stages mode is half of that in
	  the single stage mode.

	  To compile this driver as module, choose M here: The module
	  will be called sbsa_gwdt.

config ARMADA_37XX_WATCHDOG
	tristate "Armada 37xx watchdog"
	depends on ARCH_MVEBU || COMPILE_TEST
	depends on HAS_IOMEM
	select MFD_SYSCON
	select WATCHDOG_CORE
	help
	   Say Y here to include support for the watchdog timer found on
	   Marvell Armada 37xx SoCs.
	   To compile this driver as a module, choose M here: the
	   module will be called armada_37xx_wdt.

config ASM9260_WATCHDOG
	tristate "Alphascale ASM9260 watchdog"
	depends on MACH_ASM9260 || COMPILE_TEST
	depends on OF
	select WATCHDOG_CORE
	select RESET_CONTROLLER
	help
	  Watchdog timer embedded into Alphascale asm9260 chips. This will
	  reboot your system when the timeout is reached.

config AT91RM9200_WATCHDOG
	tristate "AT91RM9200 watchdog"
	depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
	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 || COMPILE_TEST
	select WATCHDOG_CORE
	help
	  Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
	  reboot your system when the timeout is reached.

config SAMA5D4_WATCHDOG
	tristate "Atmel SAMA5D4 Watchdog Timer"
	depends on ARCH_AT91 || COMPILE_TEST
	select WATCHDOG_CORE
	help
	  Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
	  Its Watchdog Timer Mode Register can be written more than once.
	  This will reboot your system when the timeout is reached.

config CADENCE_WATCHDOG
	tristate "Cadence Watchdog Timer"
	depends on HAS_IOMEM
	select WATCHDOG_CORE
	help
	  Say Y here if you want to include support for the watchdog
	  timer in the Xilinx Zynq.

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) || (ARM && COMPILE_TEST)
	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's safe to say N.

config FTWDT010_WATCHDOG
	tristate "Faraday Technology FTWDT010 watchdog"
	depends on ARM || COMPILE_TEST
	select WATCHDOG_CORE
	default ARCH_GEMINI
	help
	  Say Y here if to include support for the Faraday Technology
	  FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
	  family of devices.

	  To compile this driver as a module, choose M here: the
	  module will be called ftwdt010_wdt.

config IXP4XX_WATCHDOG
	tristate "IXP4xx Watchdog"
	depends on ARCH_IXP4XX
	select WATCHDOG_CORE
	help
	  Say Y here if to include support for the watchdog timer
	  in the Intel IXP4xx network processors. This driver can
	  be built as a module by choosing M. The module will
	  be called ixp4xx_wdt.

	  Note: The internal IXP4xx watchdog does a soft CPU reset
	  which doesn't reset any peripherals. There are circumstances
	  where the watchdog will fail to reset the board correctly
	  (e.g., if the boot ROM is in an unreadable state).

	  Say N if you are unsure.

config S3C2410_WATCHDOG
	tristate "S3C2410 Watchdog"
	depends on ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || \
		   COMPILE_TEST
	select WATCHDOG_CORE
	select MFD_SYSCON if ARCH_EXYNOS
	help
	  Watchdog timer block in the Samsung S3C24xx, S3C64xx, S5Pv210 and
	  Exynos SoCs. This will reboot the system when the timer expires with
	  the watchdog enabled.

	  The driver is limited by the speed of the system's PCLK
	  signal, so with reasonably fast systems (PCLK around 50-66MHz)
	  then watchdog intervals of over approximately 20seconds are
	  unavailable.

	  Choose Y/M here only if you build for such Samsung SoC.
	  The driver can be built as a module by choosing M, and will
	  be called s3c2410_wdt.

config SA1100_WATCHDOG
	tristate "SA1100/PXA2xx watchdog"
	depends on ARCH_SA1100 || ARCH_PXA
	help
	  Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
	  reboot your system when timeout is reached.

	  NOTE: once enabled, this timer cannot be disabled.

	  To compile this driver as a module, choose M here: the
	  module will be called sa1100_wdt.

config DW_WATCHDOG
	tristate "Synopsys DesignWare watchdog"
	depends on HAS_IOMEM
	select WATCHDOG_CORE
	help
	  Say Y here if to include support for the Synopsys DesignWare
	  watchdog timer found in many chips.
	  To compile this driver as a module, choose M here: the
	  module will be called dw_wdt.

config EP93XX_WATCHDOG
	tristate "EP93xx Watchdog"
	depends on ARCH_EP93XX || COMPILE_TEST
	select WATCHDOG_CORE
	help
	  Say Y here if to include support for the watchdog timer
	  embedded in the Cirrus Logic EP93xx family of devices.

	  To compile this driver as a module, choose M here: the
	  module will be called ep93xx_wdt.

config OMAP_WATCHDOG
	tristate "OMAP Watchdog"
	depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
	select WATCHDOG_CORE
	help
	  Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.
	  Say 'Y' here to enable the
	  OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.

config PNX4008_WATCHDOG
	tristate "LPC32XX Watchdog"
	depends on ARCH_LPC32XX || COMPILE_TEST
	select WATCHDOG_CORE
	help
	  Say Y here if to include support for the watchdog timer
	  in the LPC32XX processor.
	  This driver can be built as a module by choosing M. The module
	  will be called pnx4008_wdt.

	  Say N if you are unsure.

config DAVINCI_WATCHDOG
	tristate "DaVinci watchdog"
	depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
	select WATCHDOG_CORE
	help
	  Say Y here if to include support for the watchdog timer
	  in the DaVinci DM644x/DM646x or Keystone processors.
	  To compile this driver as a module, choose M here: the
	  module will be called davinci_wdt.

	  NOTE: once enabled, this timer cannot be disabled.
	  Say N if you are unsure.

config K3_RTI_WATCHDOG
	tristate "Texas Instruments K3 RTI watchdog"
	depends on ARCH_K3 || COMPILE_TEST
	select WATCHDOG_CORE
	help
	  Say Y here if you want to include support for the K3 watchdog
	  timer (RTI module) available in the K3 generation of processors.

config ORION_WATCHDOG
	tristate "Orion watchdog"
	depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST
	depends on ARM
	select WATCHDOG_CORE
	help
	  Say Y here if to include support for the watchdog timer
	  in the Marvell Orion5x and Kirkwood ARM SoCs.
	  To compile this driver as a module, choose M here: the
	  module will be called orion_wdt.

config RN5T618_WATCHDOG
	tristate "Ricoh RN5T618 watchdog"
	depends on MFD_RN5T618 || COMPILE_TEST
	select WATCHDOG_CORE
	help
	  If you say yes here you get support for watchdog on the Ricoh
	  RN5T618 PMIC.

	  This driver can also be built as a module.  If so, the module
	  will be called rn5t618_wdt.

config SUNXI_WATCHDOG
	tristate "Allwinner SoCs watchdog support"
	depends on ARCH_SUNXI || COMPILE_TEST
	select WATCHDOG_CORE
	help
	  Say Y here to include support for the watchdog timer
	  in Allwinner SoCs.
	  To compile this driver as a module, choose M here: the
	  module will be called sunxi_wdt.

config NPCM7XX_WATCHDOG
	tristate "Nuvoton NPCM750 watchdog"
	depends on ARCH_NPCM || COMPILE_TEST
	default y if ARCH_NPCM7XX
	select WATCHDOG_CORE
	help
	  Say Y here to include Watchdog timer support for the
	  watchdog embedded into the NPCM7xx.
	  This watchdog is used to reset the system and thus cannot be
	  compiled as a module.

config TWL4030_WATCHDOG
	tristate "TWL4030 Watchdog"
	depends on TWL4030_CORE
	select WATCHDOG_CORE
	help
	  Support for TI TWL4030 watchdog.  Say 'Y' here to enable the
	  watchdog timer support for TWL4030 chips.

config STMP3XXX_RTC_WATCHDOG
	tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
	depends on RTC_DRV_STMP || COMPILE_TEST
	select WATCHDOG_CORE
	help
	  Say Y here to include support for the watchdog timer inside
	  the RTC for the STMP37XX/378X or i.MX23/28 SoC.
	  To compile this driver as a module, choose M here: the
	  module will be called stmp3xxx_rtc_wdt.

config TS4800_WATCHDOG
	tristate "TS-4800 Watchdog"
	depends on HAS_IOMEM && OF
	depends on SOC_IMX51 || COMPILE_TEST
	select WATCHDOG_CORE
	select MFD_SYSCON
	help
	  Technologic Systems TS-4800 has watchdog timer implemented in
	  an external FPGA. Say Y here if you want to support for the
	  watchdog timer on TS-4800 board.

config TS72XX_WATCHDOG
	tristate "TS-72XX SBC Watchdog"
	depends on MACH_TS72XX || COMPILE_TEST
	select WATCHDOG_CORE
	help
	  Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
	  watchdog timer implemented in a external CPLD chip. Say Y here
	  if you want to support for the watchdog timer on TS-72XX boards.

	  To compile this driver as a module, choose M here: the
	  module will be called ts72xx_wdt.

config MAX63XX_WATCHDOG
	tristate "Max63xx watchdog"
	depends on HAS_IOMEM
	select WATCHDOG_CORE
	help
	  Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.

config MAX77620_WATCHDOG
	tristate "Maxim Max77620 Watchdog Timer"
	depends on MFD_MAX77620 || COMPILE_TEST
	select WATCHDOG_CORE
	help
	 This is the driver for the Max77620 watchdog timer.
	 Say 'Y' here to enable the watchdog timer support for
	 MAX77620 chips. To compile this driver as a module,
	 choose M here: the module will be called max77620_wdt.

config IMX2_WDT
	tristate "IMX2+ Watchdog"
	depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
	select REGMAP_MMIO
	select WATCHDOG_CORE
	help
	  This is the driver for the hardware watchdog
	  on the Freescale IMX2 and later processors.
	  If you have one of these processors and wish to have
	  watchdog support enabled, say Y, otherwise say N.

	  To compile this driver as a module, choose M here: the
	  module will be called imx2_wdt.

config IMX_SC_WDT
	tristate "IMX SC Watchdog"
	depends on HAVE_ARM_SMCCC
	depends on IMX_SCU
	select WATCHDOG_CORE
	help
	  This is the driver for the system controller watchdog
	  on the NXP i.MX SoCs with system controller inside, the
	  watchdog driver will call ARM SMC API and trap into
	  ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
	  will request system controller to execute the operations.
	  If you have one of these processors and wish to have
	  watchdog support enabled, say Y, otherwise say N.

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

config IMX7ULP_WDT
	tristate "IMX7ULP Watchdog"
	depends on ARCH_MXC || COMPILE_TEST
	select WATCHDOG_CORE
	help
	  This is the driver for the hardware watchdog on the Freescale
	  IMX7ULP and later processors. If you have one of these
	  processors and wish to have watchdog support enabled,
	  say Y, otherwise say N.

	  To compile this driver as a module, choose M here: the
	  module will be called imx7ulp_wdt.

config DB500_WATCHDOG
	tristate "ST-Ericsson DB800 watchdog"
	depends on MFD_DB8500_PRCMU
	select WATCHDOG_CORE
	default y
	help
	  Say Y here to include Watchdog timer support for the watchdog
	  existing in the prcmu of ST-Ericsson DB8500 platform.

	  To compile this driver as a module, choose M here: the
	  module will be called db500_wdt.

config RETU_WATCHDOG
	tristate "Retu watchdog"
	depends on MFD_RETU
	select WATCHDOG_CORE
	help
	  Retu watchdog driver for Nokia Internet Tablets (770, N800,
	  N810). At least on N800 the watchdog cannot be disabled, so
	  this driver is essential and you should enable it.

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

config MOXART_WDT
	tristate "MOXART watchdog"
	depends on ARCH_MOXART || COMPILE_TEST
	help
	  Say Y here to include Watchdog timer support for the watchdog
	  existing on the MOXA ART SoC series platforms.

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

config ST_LPC_WATCHDOG
	tristate "STMicroelectronics LPC Watchdog"
	depends on ARCH_STI || COMPILE_TEST
	depends on OF
	select WATCHDOG_CORE
	help
	  Say Y here to include STMicroelectronics Low Power Controller
	  (LPC) based Watchdog timer support.

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

config TEGRA_WATCHDOG
	tristate "Tegra watchdog"
	depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
	select WATCHDOG_CORE
	help
	  Say Y here to include support for the watchdog timer
	  embedded in NVIDIA Tegra SoCs.

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

config QCOM_WDT
	tristate "QCOM watchdog"
	depends on HAS_IOMEM
	depends on ARCH_QCOM || COMPILE_TEST
	select WATCHDOG_CORE
	help
	  Say Y here to include Watchdog timer support for the watchdog found
	  on QCOM chipsets.  Currently supported targets are the MSM8960,
	  APQ8064, and IPQ8064.

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

config MESON_GXBB_WATCHDOG
	tristate "Amlogic Meson GXBB SoCs watchdog support"
	depends on ARCH_MESON || COMPILE_TEST
	select WATCHDOG_CORE
	help
	  Say Y here to include support for the watchdog timer
	  in Amlogic Meson GXBB SoCs.
	  To compile this driver as a module, choose M here: the
	  module will be called meson_gxbb_wdt.

config MESON_WATCHDOG
	tristate "Amlogic Meson SoCs watchdog support"
	depends on ARCH_MESON || COMPILE_TEST
	select WATCHDOG_CORE
	help
	  Say Y here to include support for the watchdog timer
	  in Amlogic Meson SoCs.
	  To compile this driver as a module, choose M here: the
	  module will be called meson_wdt.

config MEDIATEK_WATCHDOG
	tristate "Mediatek SoCs watchdog support"
	depends on ARCH_MEDIATEK || COMPILE_TEST
	select WATCHDOG_CORE
	select RESET_CONTROLLER
	help
	  Say Y here to include support for the watchdog timer
	  in Mediatek SoCs.
	  To compile this driver as a module, choose M here: the
	  module will be called mtk_wdt.

config DIGICOLOR_WATCHDOG
	tristate "Conexant Digicolor SoCs watchdog support"
	depends on ARCH_DIGICOLOR || COMPILE_TEST
	select WATCHDOG_CORE
	help
	  Say Y here to include support for the watchdog timer
	  in Conexant Digicolor SoCs.
	  To compile this driver as a module, choose M here: the
	  module will be called digicolor_wdt.

config ARM_SMC_WATCHDOG
	tristate "ARM Secure Monitor Call based watchdog support"
	depends on ARM || ARM64
	depends on OF
	depends on HAVE_ARM_SMCCC
	select WATCHDOG_CORE
	help
	  Say Y here to include support for a watchdog timer
	  implemented by the EL3 Secure Monitor on ARM platforms.
	  Requires firmware support.
	  To compile this driver as a module, choose M here: the
	  module will be called arm_smc_wdt.

config LPC18XX_WATCHDOG
	tristate "LPC18xx/43xx Watchdog"
	depends on ARCH_LPC18XX || COMPILE_TEST
	depends on HAS_IOMEM
	select WATCHDOG_CORE
	help
	  Say Y here if to include support for the watchdog timer
	  in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
	  processors.
	  To compile this driver as a module, choose M here: the
	  module will be called lpc18xx_wdt.

config RENESAS_WDT
	tristate "Renesas WDT Watchdog"
	depends on ARCH_RENESAS || COMPILE_TEST
	select WATCHDOG_CORE
	help
	  This driver adds watchdog support for the integrated watchdogs in the
	  Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).

config RENESAS_RZAWDT
	tristate "Renesas RZ/A WDT Watchdog"
	depends on ARCH_RENESAS || COMPILE_TEST
	select WATCHDOG_CORE
	help
	  This driver adds watchdog support for the integrated watchdogs in the
	  Renesas RZ/A SoCs. These watchdogs can be used to reset a system.

config ASPEED_WATCHDOG
	tristate "Aspeed BMC watchdog support"
	depends on ARCH_ASPEED || COMPILE_TEST
	select WATCHDOG_CORE
	help
	  Say Y here to include support for the watchdog timer
	  in Aspeed BMC SoCs.

	  This driver is required to reboot the SoC.

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

config STM32_WATCHDOG
	tristate "STM32 Independent WatchDoG (IWDG) support"
	depends on ARCH_STM32
	select WATCHDOG_CORE
	default y
	help
	  Say Y here to include support for the watchdog timer
	  in stm32 SoCs.

	  To compile this driver as a module, choose M here: the
	  module will be called stm32_iwdg.

config STPMIC1_WATCHDOG
	tristate "STPMIC1 PMIC watchdog support"
	depends on MFD_STPMIC1
	select WATCHDOG_CORE
	help
	  Say Y here to include watchdog support embedded into STPMIC1 PMIC.
	  If the watchdog timer expires, stpmic1 will shut down all its power
	  supplies.

	  To compile this driver as a module, choose M here: the
	  module will be called spmic1_wdt.

config UNIPHIER_WATCHDOG
	tristate "UniPhier watchdog support"
	depends on ARCH_UNIPHIER || COMPILE_TEST
	depends on OF && MFD_SYSCON
	select WATCHDOG_CORE
	help
	  Say Y here to include support watchdog timer embedded
	  into the UniPhier system.

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

config RTD119X_WATCHDOG
	bool "Realtek RTD119x/RTD129x watchdog support"
	depends on ARCH_REALTEK || COMPILE_TEST
	depends on OF
	select WATCHDOG_CORE
	default ARCH_REALTEK
	help
	  Say Y here to include support for the watchdog timer in
	  Realtek RTD1295 SoCs.

config SPRD_WATCHDOG
	tristate "Spreadtrum watchdog support"
	depends on ARCH_SPRD || COMPILE_TEST
	select WATCHDOG_CORE
	help
	  Say Y here to include watchdog timer supported
	  by Spreadtrum system.

config PM8916_WATCHDOG
	tristate "QCOM PM8916 pmic watchdog"
	depends on OF && MFD_SPMI_PMIC
	select WATCHDOG_CORE
	help
	  Say Y here to include support watchdog timer embedded into the
	  pm8916 module.

config VISCONTI_WATCHDOG
	tristate "Toshiba Visconti series watchdog support"
	depends on ARCH_VISCONTI || COMPILE_TEST
	select WATCHDOG_CORE
	help
	  Say Y here to include support for the watchdog timer in Toshiba
	  Visconti SoCs.

config MSC313E_WATCHDOG
	tristate "MStar MSC313e watchdog"
	depends on ARCH_MSTARV7 || COMPILE_TEST
	select WATCHDOG_CORE
	help
	  Say Y here to include support for the Watchdog timer embedded
	  into MStar MSC313e chips. This will reboot your system when the
	  timeout is reached.

	  To compile this driver as a module, choose M here: the
	  module will be called msc313e_wdt.

# X86 (i386 + ia64 + x86_64) Architecture

config ACQUIRE_WDT
	tristate "Acquire SBC Watchdog Timer"
	depends on X86
	help
	  This is the driver for the hardware watchdog on Single Board
	  Computers produced by Acquire Inc (and others). This watchdog
	  simply watches your kernel to make sure it doesn't freeze, and if
	  it does, it reboots your computer after a certain amount of time.

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

	  Most people will say N.

config ADVANTECH_WDT
	tristate "Advantech SBC Watchdog Timer"
	depends on X86
	help
	  If you are configuring a Linux kernel for the Advantech single-board
	  computer, say `Y' here to support its built-in watchdog timer
	  feature. More information can be found at
	  <https://www.advantech.com.tw/products/>

config ALIM1535_WDT
	tristate "ALi M1535 PMU Watchdog Timer"
	depends on X86 && PCI
	help
	  This is the driver for the hardware watchdog on the ALi M1535 PMU.

	  To compile this driver as a module, choose M here: the
	  module will be called alim1535_wdt.

	  Most people will say N.

config ALIM7101_WDT
	tristate "ALi M7101 PMU Computer Watchdog"
	depends on PCI
	help
	  This is the driver for the hardware watchdog on the ALi M7101 PMU
	  as used in the x86 Cobalt servers and also found in some
	  SPARC Netra servers too.

	  To compile this driver as a module, choose M here: the
	  module will be called alim7101_wdt.

	  Most people will say N.

config EBC_C384_WDT
	tristate "WinSystems EBC-C384 Watchdog Timer"
	depends on X86
	select ISA_BUS_API
	select WATCHDOG_CORE
	help
	  Enables watchdog timer support for the watchdog timer on the
	  WinSystems EBC-C384 motherboard. The timeout may be configured via
	  the timeout module parameter.

config F71808E_WDT
	tristate "Fintek F718xx, F818xx Super I/O Watchdog"
	depends on X86
	select WATCHDOG_CORE
	help
	  This is the driver for the hardware watchdog on the Fintek F71808E,
	  F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and
	  F81866 Super I/O controllers.

	  You can compile this driver directly into the kernel, or use
	  it as a module.  The module will be called f71808e_wdt.

config SP5100_TCO
	tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
	depends on X86 && PCI
	select WATCHDOG_CORE
	help
	  Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
	  (Total Cost of Ownership) timer is a watchdog timer that will reboot
	  the machine after its expiration. The expiration time can be
	  configured with the "heartbeat" parameter.

	  To compile this driver as a module, choose M here: the
	  module will be called sp5100_tco.

config GEODE_WDT
	tristate "AMD Geode CS5535/CS5536 Watchdog"
	depends on CS5535_MFGPT
	help
	  This driver enables a watchdog capability built into the
	  CS5535/CS5536 companion chips for the AMD Geode GX and LX
	  processors.  This watchdog watches your kernel to make sure
	  it doesn't freeze, and if it does, it reboots your computer after
	  a certain amount of time.

	  You can compile this driver directly into the kernel, or use
	  it as a module.  The module will be called geodewdt.

config SC520_WDT
	tristate "AMD Elan SC520 processor Watchdog"
	depends on MELAN || COMPILE_TEST
	help
	  This is the driver for the hardware watchdog built in to the
	  AMD "Elan" SC520 microcomputer commonly used in embedded systems.
	  This watchdog simply watches your kernel to make sure it doesn't
	  freeze, and if it does, it reboots your computer after a certain
	  amount of time.

	  You can compile this driver directly into the kernel, or use
	  it as a module.  The module will be called sc520_wdt.

config SBC_FITPC2_WATCHDOG
	tristate "Compulab SBC-FITPC2 watchdog"
	depends on X86
	help
	  This is the driver for the built-in watchdog timer on the fit-PC2,
	  fit-PC2i, CM-iAM single-board computers made by Compulab.

	  It's possible to enable the watchdog timer either from BIOS (F2) or
	  from booted Linux.
	  When the "Watchdog Timer Value" is enabled one can set 31-255 seconds
	  operational range.

	  Entering BIOS setup temporarily disables watchdog operation regardless
	  of current state, so system will not be restarted while user is in
	  BIOS setup.

	  Once the watchdog is enabled the system will be restarted every
	  "Watchdog Timer Value" period, so to prevent it user can restart or
	  disable the watchdog.

	  To compile this driver as a module, choose M here: the
	  module will be called sbc_fitpc2_wdt.

	  Most people will say N.

config EUROTECH_WDT
	tristate "Eurotech CPU-1220/1410 Watchdog Timer"
	depends on X86
	help
	  Enable support for the watchdog timer on the Eurotech CPU-1220 and
	  CPU-1410 cards.  These are PC/104 SBCs. Spec sheets and product
	  information are at <http://www.eurotech.it/>.

config IB700_WDT
	tristate "IB700 SBC Watchdog Timer"
	depends on X86
	help
	  This is the driver for the hardware watchdog on the IB700 Single
	  Board Computer produced by TMC Technology (www.tmc-uk.com). This
	  watchdog simply watches your kernel to make sure it doesn't freeze,
	  and if it does, it reboots your computer after a certain amount of time.

	  This driver is like the WDT501 driver but for slightly different
	  hardware.

	  To compile this driver as a module, choose M here: the
	  module will be called ib700wdt.

	  Most people will say N.

config IBMASR
	tristate "IBM Automatic Server Restart"
	depends on X86
	help
	  This is the driver for the IBM Automatic Server Restart watchdog
	  timer built-in into some eServer xSeries machines.

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

config WAFER_WDT
	tristate "ICP Single Board Computer Watchdog Timer"
	depends on X86
	help
	  This is a driver for the hardware watchdog on the ICP Single
	  Board Computer. This driver is working on (at least) the following
	  IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.

	  To compile this driver as a module, choose M here: the
	  module will be called wafer5823wdt.

config I6300ESB_WDT
	tristate "Intel 6300ESB Timer/Watchdog"
	depends on PCI
	select WATCHDOG_CORE
	help
	  Hardware driver for the watchdog timer built into the Intel
	  6300ESB controller hub.

	  To compile this driver as a module, choose M here: the
	  module will be called i6300esb.

config IE6XX_WDT
	tristate "Intel Atom E6xx Watchdog"
	depends on X86 && PCI
	select WATCHDOG_CORE
	select MFD_CORE
	select LPC_SCH
	help
	  Hardware driver for the watchdog timer built into the Intel
	  Atom E6XX (TunnelCreek) processor.

	  To compile this driver as a module, choose M here: the
	  module will be called ie6xx_wdt.

config INTEL_MID_WATCHDOG
	tristate "Intel MID Watchdog Timer"
	depends on X86_INTEL_MID
	select WATCHDOG_CORE
	help
	  Watchdog timer driver built into the Intel SCU for Intel MID
	  Platforms.

	  This driver currently supports only the watchdog evolution
	  implementation in SCU, available for Merrifield generation.

	  To compile this driver as a module, choose M here.

config ITCO_WDT
	tristate "Intel TCO Timer/Watchdog"
	depends on (X86 || IA64) && PCI
	select WATCHDOG_CORE
	depends on I2C || I2C=n
	depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT
	select LPC_ICH if !EXPERT
	select I2C_I801 if !EXPERT && I2C
	help
	  Hardware driver for the intel TCO timer based watchdog devices.
	  These drivers are included in the Intel 82801 I/O Controller
	  Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
	  controller hub.

	  The TCO (Total Cost of Ownership) timer is a watchdog timer
	  that will reboot the machine after its second expiration. The
	  expiration time can be configured with the "heartbeat" parameter.

	  On some motherboards the driver may fail to reset the chipset's
	  NO_REBOOT flag which prevents the watchdog from rebooting the
	  machine. If this is the case you will get a kernel message like
	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".

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

config ITCO_VENDOR_SUPPORT
	bool "Intel TCO Timer/Watchdog Specific Vendor Support"
	depends on ITCO_WDT
	help
	  Add vendor specific support to the intel TCO timer based watchdog
	  devices. At this moment we only have additional support for some
	  SuperMicro Inc. motherboards.

config IT8712F_WDT
	tristate "IT8712F (Smart Guardian) Watchdog Timer"
	depends on X86
	help
	  This is the driver for the built-in watchdog timer on the IT8712F
	  Super I/0 chipset used on many motherboards.

	  If the driver does not work, then make sure that the game port in
	  the BIOS is enabled.

	  To compile this driver as a module, choose M here: the
	  module will be called it8712f_wdt.

config IT87_WDT
	tristate "IT87 Watchdog Timer"
	depends on X86
	select WATCHDOG_CORE
	help
	  This is the driver for the hardware watchdog on the ITE IT8607,
	  IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
	  IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
	  IT8783 Super I/O chips.

	  This watchdog simply watches your kernel to make sure it doesn't
	  freeze, and if it does, it reboots your computer after a certain
	  amount of time.

	  To compile this driver as a module, choose M here: the module will
	  be called it87_wdt.

config HP_WATCHDOG
	tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
	select WATCHDOG_CORE
	depends on X86 && PCI
	help
	  A software monitoring watchdog and NMI handling driver. This driver
	  will detect lockups and provide a stack trace. This is a driver that
	  will only load on an HP ProLiant system with a minimum of iLO2 support.
	  To compile this driver as a module, choose M here: the module will be
	  called hpwdt.

config HPWDT_NMI_DECODING
	bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
	depends on HP_WATCHDOG
	default y
	help
	  Enables the NMI handler for the watchdog pretimeout NMI and the iLO
	  "Generate NMI to System" virtual button.  When an NMI is claimed
	  by the driver, panic is called.

config KEMPLD_WDT
	tristate "Kontron COM Watchdog Timer"
	depends on MFD_KEMPLD
	select WATCHDOG_CORE
	help
	  Support for the PLD watchdog on some Kontron ETX and COMexpress
	  (ETXexpress) modules

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

config SC1200_WDT
	tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
	depends on X86
	help
	  This is a driver for National Semiconductor PC87307/PC97307 hardware
	  watchdog cards as found on the SC1200. This watchdog is mainly used
	  for power management purposes and can be used to power down the device
	  during inactivity periods (includes interrupt activity monitoring).

	  To compile this driver as a module, choose M here: the
	  module will be called sc1200wdt.

	  Most people will say N.

config SCx200_WDT
	tristate "National Semiconductor SCx200 Watchdog"
	depends on SCx200 && PCI
	help
	  Enable the built-in watchdog timer support on the National
	  Semiconductor SCx200 processors.

	  If compiled as a module, it will be called scx200_wdt.

config PC87413_WDT
	tristate "NS PC87413 watchdog"
	depends on X86
	help
	  This is the driver for the hardware watchdog on the PC87413 chipset
	  This watchdog simply watches your kernel to make sure it doesn't
	  freeze, and if it does, it reboots your computer after a certain
	  amount of time.

	  To compile this driver as a module, choose M here: the
	  module will be called pc87413_wdt.

	  Most people will say N.

config NV_TCO
	tristate "nVidia TCO Timer/Watchdog"
	depends on X86 && PCI
	help
	  Hardware driver for the TCO timer built into the nVidia Hub family
	  (such as the MCP51).  The TCO (Total Cost of Ownership) timer is a
	  watchdog timer that will reboot the machine after its second
	  expiration. The expiration time can be configured with the
	  "heartbeat" parameter.

	  On some motherboards the driver may fail to reset the chipset's
	  NO_REBOOT flag which prevents the watchdog from rebooting the
	  machine. If this is the case you will get a kernel message like
	  "failed to reset NO_REBOOT flag, reboot disabled by hardware".

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

config RDC321X_WDT
	tristate "RDC R-321x SoC watchdog"
	depends on X86_RDC321X || COMPILE_TEST
	depends on PCI
	help
	  This is the driver for the built in hardware watchdog
	  in the RDC R-321x SoC.

	  To compile this driver as a module, choose M here: the
	  module will be called rdc321x_wdt.

config 60XX_WDT
	tristate "SBC-60XX Watchdog Timer"
	depends on X86
	help
	  This driver can be used with the watchdog timer found on some
	  single board computers, namely the 6010 PII based computer.
	  It may well work with other cards.  It reads port 0x443 to enable
	  and re-set the watchdog timer, and reads port 0x45 to disable
	  the watchdog.  If you have a card that behave in similar ways,
	  you can probably make this driver work with your card as well.

	  You can compile this driver directly into the kernel, or use
	  it as a module.  The module will be called sbc60xxwdt.

config SBC8360_WDT
	tristate "SBC8360 Watchdog Timer"
	depends on X86_32
	help

	  This is the driver for the hardware watchdog on the SBC8360 Single
	  Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).

	  To compile this driver as a module, choose M here: the
	  module will be called sbc8360.

	  Most people will say N.

config SBC7240_WDT
	tristate "SBC Nano 7240 Watchdog Timer"
	depends on X86_32 && !UML
	help
	  This is the driver for the hardware watchdog found on the IEI
	  single board computers EPIC Nano 7240 (and likely others). This
	  watchdog simply watches your kernel to make sure it doesn't freeze,
	  and if it does, it reboots your computer after a certain amount of
	  time.

	  To compile this driver as a module, choose M here: the
	  module will be called sbc7240_wdt.

config CPU5_WDT
	tristate "SMA CPU5 Watchdog"
	depends on X86
	help
	  TBD.
	  To compile this driver as a module, choose M here: the
	  module will be called cpu5wdt.

config SMSC_SCH311X_WDT
	tristate "SMSC SCH311X Watchdog Timer"
	depends on X86
	help
	  This is the driver for the hardware watchdog timer on the
	  SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
	  (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
	  serial ports).

	  To compile this driver as a module, choose M here: the
	  module will be called sch311x_wdt.

config SMSC37B787_WDT
	tristate "Winbond SMsC37B787 Watchdog Timer"
	depends on X86
	help
	  This is the driver for the hardware watchdog component on the
	  Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
	  from Vision Systems and maybe others.

	  This watchdog simply watches your kernel to make sure it doesn't
	  freeze, and if it does, it reboots your computer after a certain
	  amount of time.

	  Usually a userspace daemon will notify the kernel WDT driver that
	  userspace is still alive, at regular intervals.

	  To compile this driver as a module, choose M here: the
	  module will be called smsc37b787_wdt.

	  Most people will say N.

config TQMX86_WDT
	tristate "TQ-Systems TQMX86 Watchdog Timer"
	depends on X86
	select WATCHDOG_CORE
	help
	This is the driver for the hardware watchdog timer in the TQMX86 IO
	controller found on some of their ComExpress Modules.

	To compile this driver as a module, choose M here; the module
	will be called tqmx86_wdt.

	Most people will say N.

config VIA_WDT
	tristate "VIA Watchdog Timer"
	depends on X86 && PCI
	select WATCHDOG_CORE
	help
	This is the driver for the hardware watchdog timer on VIA
	southbridge chipset CX700, VX800/VX820 or VX855/VX875.

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

	Most people will say N.

config W83627HF_WDT
	tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
	depends on X86
	select WATCHDOG_CORE
	help
	  This is the driver for the hardware watchdog on the following
	  Super I/O chips.
		W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
		W83637HF
		W83667HG/HG-B
		W83687THF
		W83697HF
		W83697UG
		NCT6775
		NCT6776
		NCT6779
		NCT6791
		NCT6792
		NCT6102D/04D/06D
		NCT6116D

	  This watchdog simply watches your kernel to make sure it doesn't
	  freeze, and if it does, it reboots your computer after a certain
	  amount of time.

	  To compile this driver as a module, choose M here: the
	  module will be called w83627hf_wdt.

	  Most people will say N.

config W83877F_WDT
	tristate "W83877F (EMACS) Watchdog Timer"
	depends on X86
	help
	  This is the driver for the hardware watchdog on the W83877F chipset
	  as used in EMACS PC-104 motherboards (and likely others).  This
	  watchdog simply watches your kernel to make sure it doesn't freeze,
	  and if it does, it reboots your computer after a certain amount of
	  time.

	  To compile this driver as a module, choose M here: the
	  module will be called w83877f_wdt.

	  Most people will say N.

config W83977F_WDT
	tristate "W83977F (PCM-5335) Watchdog Timer"
	depends on X86
	help
	  This is the driver for the hardware watchdog on the W83977F I/O chip
	  as used in AAEON's PCM-5335 SBC (and likely others).  This
	  watchdog simply watches your kernel to make sure it doesn't freeze,
	  and if it does, it reboots your computer after a certain amount of
	  time.

	  To compile this driver as a module, choose M here: the
	  module will be called w83977f_wdt.

config MACHZ_WDT
	tristate "ZF MachZ Watchdog"
	depends on X86
	help
	  If you are using a ZF Micro MachZ processor, say Y here, otherwise
	  N.  This is the driver for the watchdog timer built-in on that
	  processor using ZF-Logic interface.  This watchdog simply watches
	  your kernel to make sure it doesn't freeze, and if it does, it
	  reboots your computer after a certain amount of time.

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

config SBC_EPX_C3_WATCHDOG
	tristate "Winsystems SBC EPX-C3 watchdog"
	depends on X86
	help
	  This is the driver for the built-in watchdog timer on the EPX-C3
	  Single-board computer made by Winsystems, Inc.

	  *Note*: This hardware watchdog is not probeable and thus there
	  is no way to know if writing to its IO address will corrupt
	  your system or have any real effect.  The only way to be sure
	  that this driver does what you want is to make sure you
	  are running it on an EPX-C3 from Winsystems with the watchdog
	  timer at IO address 0x1ee and 0x1ef.  It will write to both those
	  IO ports.  Basically, the assumption is made that if you compile
	  this driver into your kernel and/or load it as a module, that you
	  know what you are doing and that you are in fact running on an
	  EPX-C3 board!

	  To compile this driver as a module, choose M here: the
	  module will be called sbc_epx_c3.

config INTEL_MEI_WDT
	tristate "Intel MEI iAMT Watchdog"
	depends on INTEL_MEI && X86
	select WATCHDOG_CORE
	help
	  A device driver for the Intel MEI iAMT watchdog.

	  The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
	  Whenever the OS hangs or crashes, iAMT will send an event
	  to any subscriber to this event. The watchdog doesn't reset the
	  the platform.

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

config NI903X_WDT
	tristate "NI 903x/913x Watchdog"
	depends on X86 && ACPI
	select WATCHDOG_CORE
	help
	  This is the driver for the watchdog timer on the National Instruments
	  903x/913x real-time controllers.

	  To compile this driver as a module, choose M here: the module will be
	  called ni903x_wdt.

config NIC7018_WDT
	tristate "NIC7018 Watchdog"
	depends on X86 && ACPI
	select WATCHDOG_CORE
	help
	  Support for National Instruments NIC7018 Watchdog.

	  To compile this driver as a module, choose M here: the module will be
	  called nic7018_wdt.

# M68K Architecture

config M54xx_WATCHDOG
	tristate "MCF54xx watchdog support"
	depends on M548x
	help
	  To compile this driver as a module, choose M here: the
	  module will be called m54xx_wdt.

# MicroBlaze Architecture

# MIPS Architecture

config ATH79_WDT
	tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
	depends on ATH79 || (ARM && COMPILE_TEST)
	help
	  Hardware driver for the built-in watchdog timer on the Atheros
	  AR71XX/AR724X/AR913X SoCs.

config BCM47XX_WDT
	tristate "Broadcom BCM47xx Watchdog Timer"
	depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
	select WATCHDOG_CORE
	help
	  Hardware driver for the Broadcom BCM47xx Watchdog Timer.

config RC32434_WDT
	tristate "IDT RC32434 SoC Watchdog Timer"
	depends on MIKROTIK_RB532
	help
	  Hardware driver for the IDT RC32434 SoC built-in
	  watchdog timer.

	  To compile this driver as a module, choose M here: the
	  module will be called rc32434_wdt.

config INDYDOG
	tristate "Indy/I2 Hardware Watchdog"
	depends on SGI_HAS_INDYDOG
	help
	  Hardware driver for the Indy's/I2's watchdog. This is a
	  watchdog timer that will reboot the machine after a 60 second
	  timer expired and no process has written to /dev/watchdog during
	  that time.

config JZ4740_WDT
	tristate "Ingenic jz4740 SoC hardware watchdog"
	depends on MIPS
	depends on COMMON_CLK
	select WATCHDOG_CORE
	select MFD_SYSCON
	help
	  Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.

config WDT_MTX1
	tristate "MTX-1 Hardware Watchdog"
	depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
	help
	  Hardware driver for the MTX-1 boards. This is a watchdog timer that
	  will reboot the machine after a 100 seconds timer expired.

config SIBYTE_WDOG
	tristate "Sibyte SoC hardware watchdog"
	depends on CPU_SB1
	help
	  Watchdog driver for the built in watchdog hardware in Sibyte
	  SoC processors.  There are apparently two watchdog timers
	  on such processors; this driver supports only the first one,
	  because currently Linux only supports exporting one watchdog
	  to userspace.

	  To compile this driver as a loadable module, choose M here.
	  The module will be called sb_wdog.

config AR7_WDT
	tristate "TI AR7 Watchdog Timer"
	depends on AR7 || (MIPS && 32BIT && COMPILE_TEST)
	help
	  Hardware driver for the TI AR7 Watchdog Timer.

config TXX9_WDT
	tristate "Toshiba TXx9 Watchdog Timer"
	depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST)
	select WATCHDOG_CORE
	help
	  Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.

config OCTEON_WDT
	tristate "Cavium OCTEON SOC family Watchdog Timer"
	depends on CAVIUM_OCTEON_SOC
	default y
	select WATCHDOG_CORE
	select EXPORT_UASM if OCTEON_WDT = m
	help
	  Hardware driver for OCTEON's on chip watchdog timer.
	  Enables the watchdog for all cores running Linux. It
	  installs a NMI handler and pokes the watchdog based on an
	  interrupt.  On first expiration of the watchdog, the
	  interrupt handler pokes it.  The second expiration causes an
	  NMI that prints a message. The third expiration causes a
	  global soft reset.

	  When userspace has /dev/watchdog open, no poking is done
	  from the first interrupt, it is then only poked when the
	  device is written.

config BCM63XX_WDT
	tristate "Broadcom BCM63xx hardware watchdog"
	depends on BCM63XX
	help
	  Watchdog driver for the built in watchdog hardware in Broadcom
	  BCM63xx SoC.

	  To compile this driver as a loadable module, choose M here.
	  The module will be called bcm63xx_wdt.

config BCM2835_WDT
	tristate "Broadcom BCM2835 hardware watchdog"
	depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
	select WATCHDOG_CORE
	help
	  Watchdog driver for the built in watchdog hardware in Broadcom
	  BCM2835 SoC.

	  To compile this driver as a loadable module, choose M here.
	  The module will be called bcm2835_wdt.

config BCM_KONA_WDT
	tristate "BCM Kona Watchdog"
	depends on ARCH_BCM_MOBILE || COMPILE_TEST
	select WATCHDOG_CORE
	help
	  Support for the watchdog timer on the following Broadcom BCM281xx
	  family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
	  BCM28155 variants.

	  Say 'Y' or 'M' here to enable the driver. The module will be called
	  bcm_kona_wdt.

config BCM_KONA_WDT_DEBUG
	bool "DEBUGFS support for BCM Kona Watchdog"
	depends on BCM_KONA_WDT
	help
	  If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
	  access to the driver's internal data structures as well as watchdog
	  timer hardware registres.

	  If in doubt, say 'N'.

config BCM7038_WDT
	tristate "BCM7038 Watchdog"
	select WATCHDOG_CORE
	depends on HAS_IOMEM
	depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST
	help
	 Watchdog driver for the built-in hardware in Broadcom 7038 and
	 later SoCs used in set-top boxes.  BCM7038 was made public
	 during the 2004 CES, and since then, many Broadcom chips use this
	 watchdog block, including some cable modem chips.

config IMGPDC_WDT
	tristate "Imagination Technologies PDC Watchdog Timer"
	depends on HAS_IOMEM
	depends on MIPS || COMPILE_TEST
	select WATCHDOG_CORE
	help
	  Driver for Imagination Technologies PowerDown Controller
	  Watchdog Timer.

	  To compile this driver as a loadable module, choose M here.
	  The module will be called imgpdc_wdt.

config LANTIQ_WDT
	tristate "Lantiq SoC watchdog"
	depends on LANTIQ
	select WATCHDOG_CORE
	help
	  Hardware driver for the Lantiq SoC Watchdog Timer.

config LOONGSON1_WDT
	tristate "Loongson1 SoC hardware watchdog"
	depends on MACH_LOONGSON32
	select WATCHDOG_CORE
	help
	  Hardware driver for the Loongson1 SoC Watchdog Timer.

config RALINK_WDT
	tristate "Ralink SoC watchdog"
	select WATCHDOG_CORE
	depends on RALINK
	help
	  Hardware driver for the Ralink SoC Watchdog Timer.

config MT7621_WDT
	tristate "Mediatek SoC watchdog"
	select WATCHDOG_CORE
	depends on SOC_MT7620 || SOC_MT7621
	help
	  Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.

config PIC32_WDT
	tristate "Microchip PIC32 hardware watchdog"
	select WATCHDOG_CORE
	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
	help
	  Watchdog driver for the built in watchdog hardware in a PIC32.

	  Configuration bits must be set appropriately for the watchdog to be
	  controlled by this driver.

	  To compile this driver as a loadable module, choose M here.
	  The module will be called pic32-wdt.

config PIC32_DMT
	tristate "Microchip PIC32 Deadman Timer"
	select WATCHDOG_CORE
	depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
	help
	  Watchdog driver for PIC32 instruction fetch counting timer. This
	  specific timer is typically be used in mission critical and safety
	  critical applications, where any single failure of the software
	  functionality and sequencing must be detected.

	  To compile this driver as a loadable module, choose M here.
	  The module will be called pic32-dmt.

# PARISC Architecture

# POWERPC Architecture

config GEF_WDT
	tristate "GE Watchdog Timer"
	depends on GE_FPGA
	help
	  Watchdog timer found in a number of GE single board computers.

config MPC5200_WDT
	bool "MPC52xx Watchdog Timer"
	depends on PPC_MPC52xx || COMPILE_TEST
	help
	  Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.

config 8xxx_WDT
	tristate "MPC8xxx Platform Watchdog Timer"
	depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
	select WATCHDOG_CORE
	help
	  This driver is for a SoC level watchdog that exists on some
	  Freescale PowerPC processors. So far this driver supports:
	  - MPC8xx watchdogs
	  - MPC83xx watchdogs
	  - MPC86xx watchdogs

	  For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.

config PIKA_WDT
	tristate "PIKA FPGA Watchdog"
	depends on WARP || (PPC64 && COMPILE_TEST)
	default y
	help
	  This enables the watchdog in the PIKA FPGA. Currently used on
	  the Warp platform.

config BOOKE_WDT
	tristate "PowerPC Book-E Watchdog Timer"
	depends on BOOKE || 4xx
	select WATCHDOG_CORE
	help
	  Watchdog driver for PowerPC Book-E chips, such as the Freescale
	  MPC85xx SOCs and the IBM PowerPC 440.

	  Please see Documentation/watchdog/watchdog-api.rst for
	  more information.

config BOOKE_WDT_DEFAULT_TIMEOUT
	int "PowerPC Book-E Watchdog Timer Default Timeout"
	depends on BOOKE_WDT
	default 38 if PPC_FSL_BOOK3E
	range 0 63 if PPC_FSL_BOOK3E
	default 3 if !PPC_FSL_BOOK3E
	range 0 3 if !PPC_FSL_BOOK3E
	help
	  Select the default watchdog timer period to be used by the PowerPC
	  Book-E watchdog driver.  A watchdog "event" occurs when the bit
	  position represented by this number transitions from zero to one.

	  For Freescale Book-E processors, this is a number between 0 and 63.
	  For other Book-E processors, this is a number between 0 and 3.

	  The value can be overridden by the wdt_period command-line parameter.

config MEN_A21_WDT
	tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
	select WATCHDOG_CORE
	depends on GPIOLIB || COMPILE_TEST
	help
	  Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.

	  The driver can also be built as a module. If so, the module will be
	  called mena21_wdt.

	  If unsure select N here.

# PPC64 Architecture

config WATCHDOG_RTAS
	tristate "RTAS watchdog"
	depends on PPC_RTAS
	help
	  This driver adds watchdog support for the RTAS watchdog.

	  To compile this driver as a module, choose M here. The module
	  will be called wdrtas.

# S390 Architecture

config DIAG288_WATCHDOG
	tristate "System z diag288 Watchdog"
	depends on S390
	select WATCHDOG_CORE
	help
	  IBM s/390 and zSeries machines running under z/VM 5.1 or later
	  provide a virtual watchdog timer to their guest that cause a
	  user define Control Program command to be executed after a
	  timeout.
	  LPAR provides a very similar interface. This driver handles
	  both.

	  To compile this driver as a module, choose M here. The module
	  will be called diag288_wdt.

# SUPERH (sh + sh64) Architecture

config SH_WDT
	tristate "SuperH Watchdog"
	depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
	select WATCHDOG_CORE
	help
	  This driver adds watchdog support for the integrated watchdog in the
	  SuperH processors. If you have one of these processors and wish
	  to have watchdog support enabled, say Y, otherwise say N.

	  As a side note, saying Y here will automatically boost HZ to 1000
	  so that the timer has a chance to clear the overflow counter. On
	  slower systems (such as the SH-2 and SH-3) this will likely yield
	  some performance issues. As such, the WDT should be avoided here
	  unless it is absolutely necessary.

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

# SPARC Architecture

# SPARC64 Architecture

config WATCHDOG_CP1XXX
	tristate "CP1XXX Hardware Watchdog support"
	depends on SPARC64 && PCI
	help
	  This is the driver for the hardware watchdog timers present on
	  Sun Microsystems CompactPCI models CP1400 and CP1500.

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

	  If you do not have a CompactPCI model CP1400 or CP1500, or
	  another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
	  you should say N to this option.

config WATCHDOG_RIO
	tristate "RIO Hardware Watchdog support"
	depends on SPARC64 && PCI
	help
	  Say Y here to support the hardware watchdog capability on Sun RIO
	  machines.  The watchdog timeout period is normally one minute but
	  can be changed with a boot-time parameter.

config WATCHDOG_SUN4V
	tristate "Sun4v Watchdog support"
	select WATCHDOG_CORE
	depends on SPARC64
	help
	  Say Y here to support the hypervisor watchdog capability embedded
	  in the SPARC sun4v architecture.

	  To compile this driver as a module, choose M here. The module will
	  be called sun4v_wdt.

# XTENSA Architecture

# Xen Architecture

config XEN_WDT
	tristate "Xen Watchdog support"
	depends on XEN
	select WATCHDOG_CORE
	help
	  Say Y here to support the hypervisor watchdog capability provided
	  by Xen 4.0 and newer.  The watchdog timeout period is normally one
	  minute but can be changed with a boot-time parameter.

config UML_WATCHDOG
	tristate "UML watchdog"
	depends on UML || COMPILE_TEST

#
# ISA-based Watchdog Cards
#

comment "ISA-based Watchdog Cards"
	depends on ISA

config PCWATCHDOG
	tristate "Berkshire Products ISA-PC Watchdog"
	depends on ISA
	help
	  This is the driver for the Berkshire Products ISA-PC Watchdog card.
	  This card simply watches your kernel to make sure it doesn't freeze,
	  and if it does, it reboots your computer after a certain amount of
	  time. This driver is like the WDT501 driver but for different
	  hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>.
	  The PC watchdog cards can be ordered from <http://www.berkprod.com/>.

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

	  Most people will say N.

config MIXCOMWD
	tristate "Mixcom Watchdog"
	depends on ISA
	help
	  This is a driver for the Mixcom hardware watchdog cards.  This
	  watchdog simply watches your kernel to make sure it doesn't freeze,
	  and if it does, it reboots your computer after a certain amount of
	  time.

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

	  Most people will say N.

config WDT
	tristate "WDT Watchdog timer"
	depends on ISA
	help
	  If you have a WDT500P or WDT501P watchdog board, say Y here,
	  otherwise N. It is not possible to probe for this board, which means
	  that you have to inform the kernel about the IO port and IRQ that
	  is needed (you can do this via the io and irq parameters)

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

#
# PCI-based Watchdog Cards
#

comment "PCI-based Watchdog Cards"
	depends on PCI

config PCIPCWATCHDOG
	tristate "Berkshire Products PCI-PC Watchdog"
	depends on PCI
	help
	  This is the driver for the Berkshire Products PCI-PC Watchdog card.
	  This card simply watches your kernel to make sure it doesn't freeze,
	  and if it does, it reboots your computer after a certain amount of
	  time. The card can also monitor the internal temperature of the PC.
	  More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.

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

	  Most people will say N.

config WDTPCI
	tristate "PCI-WDT500/501 Watchdog timer"
	depends on PCI
	help
	  If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.

	  If you have a PCI-WDT501 watchdog board then you can enable the
	  temperature sensor by setting the type parameter to 501.

	  If you want to enable the Fan Tachometer on the PCI-WDT501, then you
	  can do this via the tachometer parameter. Only do this if you have a
	  fan tachometer actually set up.

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

#
# USB-based Watchdog Cards
#

comment "USB-based Watchdog Cards"
	depends on USB

config USBPCWATCHDOG
	tristate "Berkshire Products USB-PC Watchdog"
	depends on USB
	help
	  This is the driver for the Berkshire Products USB-PC Watchdog card.
	  This card simply watches your kernel to make sure it doesn't freeze,
	  and if it does, it reboots your computer after a certain amount of
	  time. The card can also monitor the internal temperature of the PC.
	  More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.

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

	  Most people will say N.

config KEEMBAY_WATCHDOG
	tristate "Intel Keem Bay SoC non-secure watchdog"
	depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST)
	select WATCHDOG_CORE
	help
	 This option enable support for an In-secure watchdog timer driver for
	 Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every
	 count unit. An interrupt will be triggered, when the count crosses
	 the threshold configured in the register.

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

endif # WATCHDOG