mirror of
https://github.com/torvalds/linux.git
synced 2024-11-17 09:31:50 +00:00
39cdc4bfb5
Renamed global variables used to convey if the watchdog is enabled and periodicity of the timer and moved the declarations into a header for these variables Signed-off-by: Matt McClintock <msm@freescale.com> Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
567 lines
19 KiB
Plaintext
567 lines
19 KiB
Plaintext
#
|
|
# Watchdog device configuration
|
|
#
|
|
|
|
menu "Watchdog Cards"
|
|
|
|
config 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
|
|
online 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.
|
|
|
|
config WATCHDOG_NOWAYOUT
|
|
bool "Disable watchdog shutdown on close"
|
|
depends on WATCHDOG
|
|
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"
|
|
depends on WATCHDOG
|
|
|
|
# Architecture Independant
|
|
|
|
config SOFT_WATCHDOG
|
|
tristate "Software watchdog"
|
|
depends on 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.
|
|
|
|
# ARM Architecture
|
|
|
|
config 21285_WATCHDOG
|
|
tristate "DC21285 watchdog"
|
|
depends on WATCHDOG && FOOTBRIDGE
|
|
help
|
|
The Intel Footbridge chip contains a builtin 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 WATCHDOG && 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 IXP4XX_WATCHDOG
|
|
tristate "IXP4xx Watchdog"
|
|
depends on WATCHDOG && 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 IXP2000_WATCHDOG
|
|
tristate "IXP2000 Watchdog"
|
|
depends on WATCHDOG && 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 S3C2410_WATCHDOG
|
|
tristate "S3C2410 Watchdog"
|
|
depends on WATCHDOG && 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 reasonbaly 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 WATCHDOG && ( 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.
|
|
|
|
# X86 (i386 + ia64 + x86_64) Architecture
|
|
|
|
config ACQUIRE_WDT
|
|
tristate "Acquire SBC Watchdog Timer"
|
|
depends on WATCHDOG && 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 WATCHDOG && 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 WATCHDOG && 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 WATCHDOG && 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 WATCHDOG && 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 WATCHDOG && 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 WATCHDOG && 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 WAFER_WDT
|
|
tristate "ICP Wafer 5823 Single Board Computer Watchdog"
|
|
depends on WATCHDOG && 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 I8XX_TCO
|
|
tristate "Intel i8xx TCO Timer/Watchdog"
|
|
depends on WATCHDOG && (X86 || IA64) && PCI
|
|
---help---
|
|
Hardware driver for the TCO timer built into the Intel 82801
|
|
I/O Controller Hub family. 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 i8xx_tco.
|
|
|
|
config SC1200_WDT
|
|
tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
|
|
depends on WATCHDOG && 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 WATCHDOG && 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 60XX_WDT
|
|
tristate "SBC-60XX Watchdog Timer"
|
|
depends on WATCHDOG && 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 CPU5_WDT
|
|
tristate "SMA CPU5 Watchdog"
|
|
depends on WATCHDOG && X86
|
|
---help---
|
|
TBD.
|
|
To compile this driver as a module, choose M here: the
|
|
module will be called cpu5wdt.
|
|
|
|
config W83627HF_WDT
|
|
tristate "W83627HF Watchdog Timer"
|
|
depends on WATCHDOG && 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 W83877F_WDT
|
|
tristate "W83877F (EMACS) Watchdog Timer"
|
|
depends on WATCHDOG && 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 MACHZ_WDT
|
|
tristate "ZF MachZ Watchdog"
|
|
depends on WATCHDOG && X86
|
|
---help---
|
|
If you are using a ZF Micro MachZ processor, say Y here, otherwise
|
|
N. This is the driver for the watchdog timer builtin 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.
|
|
|
|
# PowerPC Architecture
|
|
|
|
config 8xx_WDT
|
|
tristate "MPC8xx Watchdog Timer"
|
|
depends on WATCHDOG && 8xx
|
|
|
|
config BOOKE_WDT
|
|
tristate "PowerPC Book-E Watchdog Timer"
|
|
depends on WATCHDOG && (BOOKE || 4xx)
|
|
---help---
|
|
Please see Documentation/watchdog/watchdog-api.txt for
|
|
more information.
|
|
|
|
# MIPS Architecture
|
|
|
|
config INDYDOG
|
|
tristate "Indy/I2 Hardware Watchdog"
|
|
depends on WATCHDOG && SGI_IP22
|
|
help
|
|
Hardwaredriver 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.
|
|
|
|
# S390 Architecture
|
|
|
|
config ZVM_WATCHDOG
|
|
tristate "z/VM Watchdog Timer"
|
|
depends on WATCHDOG && ARCH_S390
|
|
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.
|
|
|
|
To compile this driver as a module, choose M here. The module
|
|
will be called vmwatchdog.
|
|
|
|
# SUPERH Architecture
|
|
|
|
config SH_WDT
|
|
tristate "SuperH Watchdog"
|
|
depends on WATCHDOG && SUPERH
|
|
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.
|
|
|
|
# SPARC64 Architecture
|
|
|
|
config WATCHDOG_CP1XXX
|
|
tristate "CP1XXX Hardware Watchdog support"
|
|
depends on WATCHDOG && 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 WATCHDOG && 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.
|
|
|
|
# ppc64 RTAS watchdog
|
|
config WATCHDOG_RTAS
|
|
tristate "RTAS watchdog"
|
|
depends on WATCHDOG && 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.
|
|
|
|
#
|
|
# ISA-based Watchdog Cards
|
|
#
|
|
|
|
comment "ISA-based Watchdog Cards"
|
|
depends on WATCHDOG && ISA
|
|
|
|
config PCWATCHDOG
|
|
tristate "Berkshire Products ISA-PC Watchdog"
|
|
depends on WATCHDOG && 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.txt>. 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 WATCHDOG && 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 WATCHDOG && 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.
|
|
|
|
config WDT_501
|
|
bool "WDT501 features"
|
|
depends on WDT
|
|
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 WDT501P watchdog board
|
|
installed.
|
|
|
|
If you want to enable the Fan Tachometer on the WDT501P, then you
|
|
can do this via the tachometer parameter. Only do this if you have a
|
|
fan tachometer actually set up.
|
|
|
|
#
|
|
# PCI-based Watchdog Cards
|
|
#
|
|
|
|
comment "PCI-based Watchdog Cards"
|
|
depends on WATCHDOG && PCI
|
|
|
|
config PCIPCWATCHDOG
|
|
tristate "Berkshire Products PCI-PC Watchdog"
|
|
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
|