031f7edecf
Add a watchdog using the RTAS OS surveillance service. This is provided as a simpler alternative to rtasd. The added value is that it works with standard watchdog client programs and can therefore also do user space monitoring. On BPA, rtasd is not really useful because the hardware does not have much to report with event-scan. The driver should also work on other platforms that support the OS surveillance rtas calls. Signed-off-by: Arnd Bergmann <arndb@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
560 lines
18 KiB
Plaintext
560 lines
18 KiB
Plaintext
#
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# Watchdog device configuration
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#
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menu "Watchdog Cards"
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config WATCHDOG
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bool "Watchdog Timer Support"
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---help---
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If you say Y here (and to one of the following options) and create a
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character special file /dev/watchdog with major number 10 and minor
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number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:
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subsequently opening the file and then failing to write to it for
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longer than 1 minute will result in rebooting the machine. This
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could be useful for a networked machine that needs to come back
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online as fast as possible after a lock-up. There's both a watchdog
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implementation entirely in software (which can sometimes fail to
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reboot the machine) and a driver for hardware watchdog boards, which
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are more robust and can also keep track of the temperature inside
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your computer. For details, read <file:Documentation/watchdog/watchdog.txt>
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in the kernel source.
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The watchdog is usually used together with the watchdog daemon
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which is available from
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<ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can
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also monitor NFS connections and can reboot the machine when the process
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table is full.
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If unsure, say N.
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config WATCHDOG_NOWAYOUT
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bool "Disable watchdog shutdown on close"
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depends on WATCHDOG
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help
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The default watchdog behaviour (which you get if you say N here) is
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to stop the timer if the process managing it closes the file
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/dev/watchdog. It's always remotely possible that this process might
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get killed. If you say Y here, the watchdog cannot be stopped once
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it has been started.
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#
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# General Watchdog drivers
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#
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comment "Watchdog Device Drivers"
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depends on WATCHDOG
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# Architecture Independant
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config SOFT_WATCHDOG
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tristate "Software watchdog"
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depends on WATCHDOG
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help
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A software monitoring watchdog. This will fail to reboot your system
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from some situations that the hardware watchdog will recover
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from. Equally it's a lot cheaper to install.
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To compile this driver as a module, choose M here: the
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module will be called softdog.
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# ARM Architecture
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config 21285_WATCHDOG
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tristate "DC21285 watchdog"
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depends on WATCHDOG && FOOTBRIDGE
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help
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The Intel Footbridge chip contains a builtin watchdog circuit. Say Y
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here if you wish to use this. Alternatively say M to compile the
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driver as a module, which will be called wdt285.
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This driver does not work on all machines. In particular, early CATS
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boards have hardware problems that will cause the machine to simply
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lock up if the watchdog fires.
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"If in doubt, leave it out" - say N.
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config 977_WATCHDOG
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tristate "NetWinder WB83C977 watchdog"
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depends on WATCHDOG && FOOTBRIDGE && ARCH_NETWINDER
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help
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Say Y here to include support for the WB977 watchdog included in
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NetWinder machines. Alternatively say M to compile the driver as
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a module, which will be called wdt977.
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Not sure? It's safe to say N.
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config IXP4XX_WATCHDOG
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tristate "IXP4xx Watchdog"
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depends on WATCHDOG && ARCH_IXP4XX
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help
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Say Y here if to include support for the watchdog timer
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in the Intel IXP4xx network processors. This driver can
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be built as a module by choosing M. The module will
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be called ixp4xx_wdt.
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Note: The internal IXP4xx watchdog does a soft CPU reset
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which doesn't reset any peripherals. There are circumstances
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where the watchdog will fail to reset the board correctly
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(e.g., if the boot ROM is in an unreadable state).
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Say N if you are unsure.
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config IXP2000_WATCHDOG
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tristate "IXP2000 Watchdog"
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depends on WATCHDOG && ARCH_IXP2000
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help
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Say Y here if to include support for the watchdog timer
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in the Intel IXP2000(2400, 2800, 2850) network processors.
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This driver can be built as a module by choosing M. The module
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will be called ixp2000_wdt.
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Say N if you are unsure.
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config S3C2410_WATCHDOG
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tristate "S3C2410 Watchdog"
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depends on WATCHDOG && ARCH_S3C2410
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help
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Watchdog timer block in the Samsung S3C2410 chips. This will
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reboot the system when the timer expires with the watchdog
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enabled.
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The driver is limited by the speed of the system's PCLK
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signal, so with reasonbaly fast systems (PCLK around 50-66MHz)
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then watchdog intervals of over approximately 20seconds are
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unavailable.
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The driver can be built as a module by choosing M, and will
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be called s3c2410_wdt
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config SA1100_WATCHDOG
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tristate "SA1100/PXA2xx watchdog"
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depends on WATCHDOG && ( ARCH_SA1100 || ARCH_PXA )
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help
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Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
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reboot your system when timeout is reached.
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NOTE: once enabled, this timer cannot be disabled.
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To compile this driver as a module, choose M here: the
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module will be called sa1100_wdt.
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# X86 (i386 + ia64 + x86_64) Architecture
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config ACQUIRE_WDT
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tristate "Acquire SBC Watchdog Timer"
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depends on WATCHDOG && X86
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---help---
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This is the driver for the hardware watchdog on Single Board
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Computers produced by Acquire Inc (and others). This watchdog
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simply watches your kernel to make sure it doesn't freeze, and if
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it does, it reboots your computer after a certain amount of time.
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To compile this driver as a module, choose M here: the
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module will be called acquirewdt.
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Most people will say N.
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config ADVANTECH_WDT
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tristate "Advantech SBC Watchdog Timer"
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depends on WATCHDOG && X86
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help
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If you are configuring a Linux kernel for the Advantech single-board
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computer, say `Y' here to support its built-in watchdog timer
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feature. More information can be found at
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<http://www.advantech.com.tw/products/>
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config ALIM1535_WDT
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tristate "ALi M1535 PMU Watchdog Timer"
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depends on WATCHDOG && X86 && PCI
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---help---
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This is the driver for the hardware watchdog on the ALi M1535 PMU.
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To compile this driver as a module, choose M here: the
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module will be called alim1535_wdt.
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Most people will say N.
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config ALIM7101_WDT
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tristate "ALi M7101 PMU Computer Watchdog"
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depends on WATCHDOG && X86 && PCI
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help
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This is the driver for the hardware watchdog on the ALi M7101 PMU
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as used in the x86 Cobalt servers.
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To compile this driver as a module, choose M here: the
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module will be called alim7101_wdt.
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Most people will say N.
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config SC520_WDT
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tristate "AMD Elan SC520 processor Watchdog"
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depends on WATCHDOG && X86
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help
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This is the driver for the hardware watchdog built in to the
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AMD "Elan" SC520 microcomputer commonly used in embedded systems.
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This watchdog simply watches your kernel to make sure it doesn't
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freeze, and if it does, it reboots your computer after a certain
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amount of time.
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You can compile this driver directly into the kernel, or use
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it as a module. The module will be called sc520_wdt.
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config EUROTECH_WDT
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tristate "Eurotech CPU-1220/1410 Watchdog Timer"
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depends on WATCHDOG && X86
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help
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Enable support for the watchdog timer on the Eurotech CPU-1220 and
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CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
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information are at <http://www.eurotech.it/>.
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config IB700_WDT
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tristate "IB700 SBC Watchdog Timer"
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depends on WATCHDOG && X86
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---help---
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This is the driver for the hardware watchdog on the IB700 Single
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Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog
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simply watches your kernel to make sure it doesn't freeze, and if
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it does, it reboots your computer after a certain amount of time.
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This driver is like the WDT501 driver but for slightly different hardware.
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To compile this driver as a module, choose M here: the
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module will be called ib700wdt.
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Most people will say N.
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config WAFER_WDT
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tristate "ICP Wafer 5823 Single Board Computer Watchdog"
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depends on WATCHDOG && X86
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help
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This is a driver for the hardware watchdog on the ICP Wafer 5823
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Single Board Computer (and probably other similar models).
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To compile this driver as a module, choose M here: the
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module will be called wafer5823wdt.
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config I8XX_TCO
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tristate "Intel i8xx TCO Timer/Watchdog"
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depends on WATCHDOG && (X86 || IA64) && PCI
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---help---
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Hardware driver for the TCO timer built into the Intel 82801
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I/O Controller Hub family. The TCO (Total Cost of Ownership)
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timer is a watchdog timer that will reboot the machine after
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its second expiration. The expiration time can be configured
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with the "heartbeat" parameter.
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On some motherboards the driver may fail to reset the chipset's
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NO_REBOOT flag which prevents the watchdog from rebooting the
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machine. If this is the case you will get a kernel message like
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"failed to reset NO_REBOOT flag, reboot disabled by hardware".
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To compile this driver as a module, choose M here: the
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module will be called i8xx_tco.
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config SC1200_WDT
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tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
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depends on WATCHDOG && X86
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help
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This is a driver for National Semiconductor PC87307/PC97307 hardware
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watchdog cards as found on the SC1200. This watchdog is mainly used
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for power management purposes and can be used to power down the device
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during inactivity periods (includes interrupt activity monitoring).
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To compile this driver as a module, choose M here: the
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module will be called sc1200wdt.
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Most people will say N.
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config SCx200_WDT
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tristate "National Semiconductor SCx200 Watchdog"
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depends on WATCHDOG && SCx200 && PCI
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help
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Enable the built-in watchdog timer support on the National
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Semiconductor SCx200 processors.
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If compiled as a module, it will be called scx200_wdt.
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config 60XX_WDT
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tristate "SBC-60XX Watchdog Timer"
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depends on WATCHDOG && X86
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help
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This driver can be used with the watchdog timer found on some
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single board computers, namely the 6010 PII based computer.
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It may well work with other cards. It reads port 0x443 to enable
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and re-set the watchdog timer, and reads port 0x45 to disable
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the watchdog. If you have a card that behave in similar ways,
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you can probably make this driver work with your card as well.
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You can compile this driver directly into the kernel, or use
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it as a module. The module will be called sbc60xxwdt.
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config CPU5_WDT
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tristate "SMA CPU5 Watchdog"
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depends on WATCHDOG && X86
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---help---
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TBD.
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To compile this driver as a module, choose M here: the
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module will be called cpu5wdt.
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config W83627HF_WDT
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tristate "W83627HF Watchdog Timer"
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depends on WATCHDOG && X86
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---help---
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This is the driver for the hardware watchdog on the W83627HF chipset
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as used in Advantech PC-9578 and Tyan S2721-533 motherboards
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(and likely others). This watchdog simply watches your kernel to
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make sure it doesn't freeze, and if it does, it reboots your computer
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after a certain amount of time.
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To compile this driver as a module, choose M here: the
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module will be called w83627hf_wdt.
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Most people will say N.
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config W83877F_WDT
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tristate "W83877F (EMACS) Watchdog Timer"
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depends on WATCHDOG && X86
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---help---
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This is the driver for the hardware watchdog on the W83877F chipset
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as used in EMACS PC-104 motherboards (and likely others). This
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watchdog simply watches your kernel to make sure it doesn't freeze,
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and if it does, it reboots your computer after a certain amount of
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time.
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To compile this driver as a module, choose M here: the
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module will be called w83877f_wdt.
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Most people will say N.
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config MACHZ_WDT
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tristate "ZF MachZ Watchdog"
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depends on WATCHDOG && X86
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---help---
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If you are using a ZF Micro MachZ processor, say Y here, otherwise
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N. This is the driver for the watchdog timer builtin on that
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processor using ZF-Logic interface. This watchdog simply watches
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your kernel to make sure it doesn't freeze, and if it does, it
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reboots your computer after a certain amount of time.
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To compile this driver as a module, choose M here: the
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module will be called machzwd.
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# PowerPC Architecture
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config 8xx_WDT
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tristate "MPC8xx Watchdog Timer"
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depends on WATCHDOG && 8xx
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# MIPS Architecture
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config INDYDOG
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tristate "Indy/I2 Hardware Watchdog"
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depends on WATCHDOG && SGI_IP22
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help
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Hardwaredriver for the Indy's/I2's watchdog. This is a
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watchdog timer that will reboot the machine after a 60 second
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timer expired and no process has written to /dev/watchdog during
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that time.
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# S390 Architecture
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config ZVM_WATCHDOG
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tristate "z/VM Watchdog Timer"
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depends on WATCHDOG && ARCH_S390
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help
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IBM s/390 and zSeries machines running under z/VM 5.1 or later
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provide a virtual watchdog timer to their guest that cause a
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user define Control Program command to be executed after a
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timeout.
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To compile this driver as a module, choose M here. The module
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will be called vmwatchdog.
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# SUPERH Architecture
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config SH_WDT
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tristate "SuperH Watchdog"
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depends on WATCHDOG && SUPERH
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help
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This driver adds watchdog support for the integrated watchdog in the
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SuperH processors. If you have one of these processors and wish
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to have watchdog support enabled, say Y, otherwise say N.
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As a side note, saying Y here will automatically boost HZ to 1000
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so that the timer has a chance to clear the overflow counter. On
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slower systems (such as the SH-2 and SH-3) this will likely yield
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some performance issues. As such, the WDT should be avoided here
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unless it is absolutely necessary.
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To compile this driver as a module, choose M here: the
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module will be called shwdt.
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# SPARC64 Architecture
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config WATCHDOG_CP1XXX
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tristate "CP1XXX Hardware Watchdog support"
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depends on WATCHDOG && SPARC64 && PCI
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---help---
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This is the driver for the hardware watchdog timers present on
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Sun Microsystems CompactPCI models CP1400 and CP1500.
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To compile this driver as a module, choose M here: the
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module will be called cpwatchdog.
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If you do not have a CompactPCI model CP1400 or CP1500, or
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another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
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you should say N to this option.
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config WATCHDOG_RIO
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tristate "RIO Hardware Watchdog support"
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depends on WATCHDOG && SPARC64 && PCI
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help
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Say Y here to support the hardware watchdog capability on Sun RIO
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machines. The watchdog timeout period is normally one minute but
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can be changed with a boot-time parameter.
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# ppc64 RTAS watchdog
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config WATCHDOG_RTAS
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tristate "RTAS watchdog"
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depends on WATCHDOG && PPC_RTAS
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help
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This driver adds watchdog support for the RTAS watchdog.
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To compile this driver as a module, choose M here. The module
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will be called wdrtas.
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#
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# ISA-based Watchdog Cards
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#
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comment "ISA-based Watchdog Cards"
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depends on WATCHDOG && ISA
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config PCWATCHDOG
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tristate "Berkshire Products ISA-PC Watchdog"
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depends on WATCHDOG && ISA
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---help---
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This is the driver for the Berkshire Products ISA-PC Watchdog card.
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This card simply watches your kernel to make sure it doesn't freeze,
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and if it does, it reboots your computer after a certain amount of
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time. This driver is like the WDT501 driver but for different
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hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC
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watchdog cards can be ordered from <http://www.berkprod.com/>.
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To compile this driver as a module, choose M here: the
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module will be called pcwd.
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Most people will say N.
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config MIXCOMWD
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tristate "Mixcom Watchdog"
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depends on WATCHDOG && ISA
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---help---
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This is a driver for the Mixcom hardware watchdog cards. This
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watchdog simply watches your kernel to make sure it doesn't freeze,
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and if it does, it reboots your computer after a certain amount of
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time.
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To compile this driver as a module, choose M here: the
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module will be called mixcomwd.
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Most people will say N.
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config WDT
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tristate "WDT Watchdog timer"
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depends on WATCHDOG && ISA
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---help---
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If you have a WDT500P or WDT501P watchdog board, say Y here,
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otherwise N. It is not possible to probe for this board, which means
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that you have to inform the kernel about the IO port and IRQ that
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is needed (you can do this via the io and irq parameters)
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To compile this driver as a module, choose M here: the
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module will be called wdt.
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config WDT_501
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bool "WDT501 features"
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depends on WDT
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help
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Saying Y here and creating a character special file /dev/temperature
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with major number 10 and minor number 131 ("man mknod") will give
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you a thermometer inside your computer: reading from
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/dev/temperature yields one byte, the temperature in degrees
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Fahrenheit. This works only if you have a WDT501P watchdog board
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installed.
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If you want to enable the Fan Tachometer on the WDT501P, then you
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can do this via the tachometer parameter. Only do this if you have a
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fan tachometer actually set up.
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#
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# PCI-based Watchdog Cards
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#
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comment "PCI-based Watchdog Cards"
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depends on WATCHDOG && PCI
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config PCIPCWATCHDOG
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tristate "Berkshire Products PCI-PC Watchdog"
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depends on WATCHDOG && 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 WATCHDOG && PCI
|
|
---help---
|
|
If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
|
|
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called wdt_pci.
|
|
|
|
config WDT_501_PCI
|
|
bool "PCI-WDT501 features"
|
|
depends on WDTPCI
|
|
help
|
|
Saying Y here and creating a character special file /dev/temperature
|
|
with major number 10 and minor number 131 ("man mknod") will give
|
|
you a thermometer inside your computer: reading from
|
|
/dev/temperature yields one byte, the temperature in degrees
|
|
Fahrenheit. This works only if you have a PCI-WDT501 watchdog board
|
|
installed.
|
|
|
|
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.
|
|
|
|
#
|
|
# USB-based Watchdog Cards
|
|
#
|
|
|
|
comment "USB-based Watchdog Cards"
|
|
depends on WATCHDOG && USB
|
|
|
|
config USBPCWATCHDOG
|
|
tristate "Berkshire Products USB-PC Watchdog"
|
|
depends on WATCHDOG && 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.
|
|
|
|
endmenu
|