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Diffstat (limited to 'drivers/watchdog')
62 files changed, 25348 insertions, 0 deletions
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig new file mode 100644 index 000000000000..37bddc1802de --- /dev/null +++ b/drivers/watchdog/Kconfig @@ -0,0 +1,853 @@ +# +# 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.txt> + in the kernel source. + + The watchdog is usually used together with the watchdog daemon + which is available from + <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can + also monitor NFS connections and can reboot the machine when the process + table is full. + + If unsure, say N. + +if WATCHDOG + +config WATCHDOG_NOWAYOUT + bool "Disable watchdog shutdown on close" + help + The default watchdog behaviour (which you get if you say N here) is + to stop the timer if the process managing it closes the file + /dev/watchdog. It's always remotely possible that this process might + get killed. If you say Y here, the watchdog cannot be stopped once + it has been started. + +# +# General Watchdog drivers +# + +comment "Watchdog Device Drivers" + +# Architecture Independent + +config SOFT_WATCHDOG + tristate "Software watchdog" + 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. + +# ALPHA Architecture + +# ARM Architecture + +config AT91RM9200_WATCHDOG + tristate "AT91RM9200 watchdog" + depends on ARCH_AT91RM9200 + help + Watchdog timer embedded into AT91RM9200 chips. This will reboot your + system when the timeout is reached. + +config 21285_WATCHDOG + tristate "DC21285 watchdog" + depends on FOOTBRIDGE + help + The Intel Footbridge chip contains a built-in watchdog circuit. Say Y + here if you wish to use this. Alternatively say M to compile the + driver as a module, which will be called wdt285. + + This driver does not work on all machines. In particular, early CATS + boards have hardware problems that will cause the machine to simply + lock up if the watchdog fires. + + "If in doubt, leave it out" - say N. + +config 977_WATCHDOG + tristate "NetWinder WB83C977 watchdog" + depends on FOOTBRIDGE && ARCH_NETWINDER + help + Say Y here to include support for the WB977 watchdog included in + NetWinder machines. Alternatively say M to compile the driver as + a module, which will be called wdt977. + + Not sure? It's safe to say N. + +config IXP2000_WATCHDOG + tristate "IXP2000 Watchdog" + depends on ARCH_IXP2000 + help + Say Y here if to include support for the watchdog timer + in the Intel IXP2000(2400, 2800, 2850) network processors. + This driver can be built as a module by choosing M. The module + will be called ixp2000_wdt. + + Say N if you are unsure. + +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 S3C2410_WATCHDOG + tristate "S3C2410 Watchdog" + depends on ARCH_S3C2410 + help + Watchdog timer block in the Samsung S3C2410 chips. 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 MPCORE_WATCHDOG + tristate "MPcore watchdog" + depends on ARM_MPCORE_PLATFORM && LOCAL_TIMERS + help + Watchdog timer embedded into the MPcore system. + + To compile this driver as a module, choose M here: the + module will be called mpcore_wdt. + +config EP93XX_WATCHDOG + tristate "EP93xx Watchdog" + depends on ARCH_EP93XX + 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_OMAP24XX + help + Support for TI OMAP1610/OMAP1710/OMAP2420 watchdog. Say 'Y' here to + enable the OMAP1610/OMAP1710 watchdog timer. + +config PNX4008_WATCHDOG + tristate "PNX4008 Watchdog" + depends on ARCH_PNX4008 + help + Say Y here if to include support for the watchdog timer + in the PNX4008 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 PLAT_IOP + 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 + help + Say Y here if to include support for the watchdog timer + in the DaVinci DM644x/DM646x 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. + +# ARM26 Architecture + +# AVR32 Architecture + +config AT32AP700X_WDT + tristate "AT32AP700x watchdog" + depends on CPU_AT32AP7000 + help + Watchdog timer embedded into AT32AP700x devices. This will reboot + your system when the timeout is reached. + +# BLACKFIN Architecture + +config BFIN_WDT + tristate "Blackfin On-Chip Watchdog Timer" + depends on BLACKFIN + ---help--- + If you say yes here you will get support for the Blackfin On-Chip + Watchdog Timer. 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 bfin_wdt. + +# CRIS Architecture + +# FRV Architecture + +# H8300 Architecture + +# 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 X86 && PCI + help + This is the driver for the hardware watchdog on the ALi M7101 PMU + as used in the x86 Cobalt servers. + + To compile this driver as a module, choose M here: the + module will be called alim7101_wdt. + + Most people will say N. + +config SC520_WDT + tristate "AMD Elan SC520 processor Watchdog" + depends on X86 + 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 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 Wafer 5823 Single Board Computer Watchdog" + depends on X86 + help + This is a driver for the hardware watchdog on the ICP Wafer 5823 + Single Board Computer (and probably other similar models). + + 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 X86 && PCI + ---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 ITCO_WDT + tristate "Intel TCO Timer/Watchdog" + depends on (X86 || IA64) && PCI + ---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 ICH8) and in the Intel 6300ESB + 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 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 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 + ---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.ko. + + Most people will say N. + +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 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 W83627HF_WDT + tristate "W83627HF Watchdog Timer" + depends on X86 + ---help--- + This is the driver for the hardware watchdog on the W83627HF chipset + as used in Advantech PC-9578 and Tyan S2721-533 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 w83627hf_wdt. + + Most people will say N. + +config W83697HF_WDT + tristate "W83697HF/W83697HG Watchdog Timer" + depends on X86 + ---help--- + This is the driver for the hardware watchdog on the W83697HF/HG + chipset as used in Dedibox/VIA 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 w83697hf_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 |