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|
#
# Watchdog device configuration
#
menuconfig WATCHDOG
bool "Watchdog Timer Support"
---help---
If you say Y here (and to one of the following options) and create a
character special file /dev/watchdog with major number 10 and minor
number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:
subsequently opening the file and then failing to write to it for
longer than 1 minute will result in rebooting the machine. This
could be useful for a networked machine that needs to come back
on-line as fast as possible after a lock-up. There's both a watchdog
implementation entirely in software (which can sometimes fail to
reboot the machine) and a driver for hardware watchdog boards, which
are more robust and can also keep track of the temperature inside
your computer. For details, read
<file:Documentation/watchdog/watchdog-api.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.
config WM8350_WATCHDOG
tristate "WM8350 watchdog"
depends on MFD_WM8350
help
Support for the watchdog in the WM8350 AudioPlus PMIC. When
the watchdog triggers the system will be reset.
# 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 AT91SAM9X_WATCHDOG
tristate "AT91SAM9X / AT91CAP9 watchdog"
depends on ARCH_AT91 && !ARCH_AT91RM9200
help
Watchdog timer embedded into AT91SAM9X and AT91CAP9 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 || ARCH_OMAP34XX
help
Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430 watchdog. Say 'Y'
here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430 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.
config ORION5X_WATCHDOG
tristate "Orion5x watchdog"
depends on ARCH_ORION5X
help
Say Y here if to include support for the watchdog timer
in the Orion5x ARM SoCs.
To compile this driver as a module, choose M here: the
module will be called orion5x_wdt.
# ARM26 Architecture
# AVR32 Architecture
config AT32AP700X_WDT
tristate "AT32AP700x watchdog"
depends on CPU_AT32AP700X
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 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 GEODE_WDT
tristate "AMD Geode CS5535/CS5536 Watchdog"
depends on MGEODE_LX
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 freez
|