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Diffstat (limited to 'drivers/watchdog/Kconfig')
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diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig new file mode 100644 index 000000000..b64bc49c7 --- /dev/null +++ b/drivers/watchdog/Kconfig @@ -0,0 +1,2207 @@ +# 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 + depends on I2C + 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 || MFD_MAX77714 || 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 + default ARCH_MEDIATEK + 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 RENESAS_RZN1WDT + tristate "Renesas RZ/N1 watchdog" + depends on ARCH_RENESAS || COMPILE_TEST + select WATCHDOG_CORE + help + This driver adds watchdog support for the integrated watchdogs in the + Renesas RZ/N1 SoCs. These watchdogs can be used to reset a system. + +config RENESAS_RZG2LWDT + tristate "Renesas RZ/G2L 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/G2L 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 REALTEK_OTTO_WDT + tristate "Realtek Otto MIPS watchdog support" + depends on MACH_REALTEK_RTL || COMPILE_TEST + depends on COMMON_CLK + select WATCHDOG_CORE + default MACH_REALTEK_RTL + help + Say Y here to include support for the watchdog timer on Realtek + RTL838x, RTL839x, RTL930x SoCs. This watchdog has pretimeout + notifications and system reset on timeout. + + When built as a module this will be called realtek_otto_wdt. + +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. + +config APPLE_WATCHDOG + tristate "Apple SoC watchdog" + depends on ARCH_APPLE || COMPILE_TEST + select WATCHDOG_CORE + help + Say Y here to include support for the Watchdog found in Apple + SoCs such as the M1. Next to the common watchdog features this + driver is also required in order to reboot these SoCs. + + To compile this driver as a module, choose M here: the + module will be called apple_wdt. + +config SUNPLUS_WATCHDOG + tristate "Sunplus watchdog support" + depends on ARCH_SUNPLUS || COMPILE_TEST + select WATCHDOG_CORE + help + Say Y here to include support for the watchdog timer + in Sunplus SoCs. + + To compile this driver as a module, choose M here: the + module will be called sunplus_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 EXAR_WDT + tristate "Exar Watchdog Timer" + depends on X86 + select WATCHDOG_CORE + help + Enables watchdog timer support for the watchdog timer present + in some Exar/MaxLinear UART chips like the XR28V38x. + + To compile this driver as a module, choose M here: the + module will be called exar_wdt. + +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 (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 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. + +config SIEMENS_SIMATIC_IPC_WDT + tristate "Siemens Simatic IPC Watchdog" + depends on SIEMENS_SIMATIC_IPC + select WATCHDOG_CORE + select P2SB + help + This driver adds support for several watchdogs found in Industrial + PCs from Siemens. + + To compile this driver as a module, choose M here: the module will be + called simatic-ipc-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_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 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 "BCM63xx/BCM7038 Watchdog" + select WATCHDOG_CORE + depends on HAS_IOMEM + depends on ARCH_BCMBCA || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || 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 and DSL (63xx) + 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 GXP_WATCHDOG + tristate "HPE GXP watchdog support" + depends on ARCH_HPE_GXP + select WATCHDOG_CORE + help + Say Y here to include support for the watchdog timer + in HPE GXP SoCs. + + To compile this driver as a module, choose M here. + The module will be called gxp-wdt. + +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_E500 + range 0 63 if PPC_E500 + default 3 if !PPC_E500 + range 0 3 if !PPC_E500 + 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 PSERIES_WDT + tristate "POWER Architecture Platform Watchdog Timer" + depends on PPC_PSERIES + select WATCHDOG_CORE + help + Driver for virtual watchdog timers provided by PAPR + hypervisors (e.g. PowerVM, KVM). + +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 |