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/usr/src/kernels/4.18.0-553.121.1.el8_10.x86_64/drivers/watchdog/Kconfig
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# # 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 <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. 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. # # 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 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 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 TANGOX_WATCHDOG tristate "Sigma Designs SMP86xx/SMP87xx watchdog" select WATCHDOG_CORE depends on ARCH_TANGO || COMPILE_TEST depends on HAS_IOMEM help Support for the watchdog in Sigma Designs SMP86xx (tango3) and SMP87xx (tango4) family chips. This driver can be built as a module. The module name is tangox_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. # 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 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 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 KS8695_WATCHDOG tristate "KS8695 watchdog" depends on ARCH_KS8695 help Watchdog timer embedded into KS8695 processor. This will reboot your system when the timeout is reached. config HAVE_S3C2410_WATCHDOG bool help This will include watchdog timer support for Samsung SoCs. If you want to include watchdog support for any machine, kindly select this in the respective mach-XXXX/Kconfig file. config S3C2410_WATCHDOG tristate "S3C2410 Watchdog" depends on HAVE_S3C2410_WATCHDOG || COMPILE_TEST select WATCHDOG_CORE select MFD_SYSCON if ARCH_EXYNOS help Watchdog timer block in the Samsung 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. 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 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 IOP_WATCHDOG tristate "IOP Watchdog" depends on ARCH_IOP13XX select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X) help Say Y here if to include support for the watchdog timer in the Intel IOP3XX & IOP13XX I/O Processors. This driver can be built as a module by choosing M. The module will be called iop_wdt. Note: The IOP13XX watchdog does an Internal Bus Reset which will affect both cores and the peripherals of the IOP. The ATU-X and/or ATUe configuration registers will remain intact, but if operating as an Root Complex and/or Central Resource, the PCI-X and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER. 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 ORION_WATCHDOG tristate "Orion watchdog" depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || (COMPILE_TEST && !ARCH_EBSA110) 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 COH901327_WATCHDOG bool "ST-Ericsson COH 901 327 watchdog" depends on ARCH_U300 || (ARM && COMPILE_TEST) default y if MACH_U300 select WATCHDOG_CORE help Say Y here to include Watchdog timer support for the watchdog embedded into the ST-Ericsson U300 series platforms. This watchdog is used to reset the system and thus cannot be compiled as a module. config NPCM7XX_WATCHDOG bool "Nuvoton NPCM750 watchdog" depends on ARCH_NPCM || COMPILE_TEST default y if ARCH_NPCM750 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 NUC900_WATCHDOG tristate "Nuvoton NUC900 watchdog" depends on ARCH_W90X900 || COMPILE_TEST help Say Y here if to include support for the watchdog timer for the Nuvoton NUC900 series SoCs. To compile this driver as a module, choose M here: the module will be called nuc900_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 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 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 UX500_WATCHDOG tristate "ST-Ericsson Ux500 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 Ux500 series platforms. To compile this driver as a module, choose M here: the module will be called ux500_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 SIRFSOC_WATCHDOG tristate "SiRFSOC watchdog" depends on ARCH_SIRF || COMPILE_TEST select WATCHDOG_CORE default y help Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When the watchdog triggers the system will be reset. 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 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 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 ATLAS7_WATCHDOG tristate "CSRatlas7 watchdog" depends on ARCH_ATLAS7 || COMPILE_TEST help Say Y here to include Watchdog timer support for the watchdog existing on the CSRatlas7 series platforms. To compile this driver as a module, choose M here: the module will be called atlas7_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 ZX2967_WATCHDOG tristate "ZTE zx2967 SoCs watchdog support" depends on ARCH_ZX select WATCHDOG_CORE help Say Y here to include support for the watchdog timer in ZTE zx2967 SoCs. To compile this driver as a module, choose M here: the module will be called zx2967_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 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. # 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 <http://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 help This is the driver for the hardware watchdog on the Fintek F71808E, F71862FG, F71868, F71869, F71882FG, F71889FG, 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 watchdog timer either from BIOS (F2) or from booted Linux. When "Watchdog Timer Value" enabled one can set 31-255 s operational range. Entering BIOS setup temporary disables watchdog operation regardless to current state, so system will not be restarted while user in BIOS setup. Once watchdog was 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_SCU_WATCHDOG bool "Intel SCU Watchdog for Mobile Platforms" depends on X86_INTEL_MID ---help--- Hardware driver for the watchdog time built into the Intel SCU for Intel Mobile Platforms. To compile this driver as a module, choose M here. 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 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 (ARM64 || 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 X86 && 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 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 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 MACH_JZ4740 || MACH_JZ4780 select WATCHDOG_CORE 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 PNX833X_WDT tristate "PNX833x Hardware Watchdog" depends on SOC_PNX8335 depends on BROKEN help Hardware driver for the PNX833x's watchdog. This is a watchdog timer that will reboot the machine after a programmable timer has expired and no process has written to /dev/watchdog during that time. config SIBYTE_WDOG tristate "Sibyte SoC hardware watchdog" depends on CPU_SB1 || (MIPS && COMPILE_TEST) 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 && 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 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 misson 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 MV64X60_WDT tristate "MV64X60 (Marvell Discovery) Watchdog Timer" depends on MV64X60 || COMPILE_TEST 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. comment "Watchdog Pretimeout Governors" config WATCHDOG_PRETIMEOUT_GOV bool "Enable watchdog pretimeout governors" help The option allows to select watchdog pretimeout governors. if WATCHDOG_PRETIMEOUT_GOV 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" select 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" select 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 config WATCHDOG_PRETIMEOUT_GOV_NOOP tristate "Noop watchdog pretimeout governor" 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" help Panic watchdog pretimeout governor, on watchdog pretimeout event put the kernel into panic. endif # WATCHDOG_PRETIMEOUT_GOV endif # WATCHDOG
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