748 lines
18 KiB
ReStructuredText
748 lines
18 KiB
ReStructuredText
==========================
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WatchDog Module Parameters
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==========================
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This file provides information on the module parameters of many of
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the Linux watchdog drivers. Watchdog driver parameter specs should
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be listed here unless the driver has its own driver-specific information
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file.
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See Documentation/admin-guide/kernel-parameters.rst for information on
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providing kernel parameters for builtin drivers versus loadable
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modules.
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-------------------------------------------------
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watchdog core:
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open_timeout:
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Maximum time, in seconds, for which the watchdog framework will take
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care of pinging a running hardware watchdog until userspace opens the
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corresponding /dev/watchdogN device. A value of 0 means an infinite
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timeout. Setting this to a non-zero value can be useful to ensure that
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either userspace comes up properly, or the board gets reset and allows
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fallback logic in the bootloader to try something else.
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-------------------------------------------------
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acquirewdt:
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wdt_stop:
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Acquire WDT 'stop' io port (default 0x43)
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wdt_start:
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Acquire WDT 'start' io port (default 0x443)
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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advantechwdt:
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wdt_stop:
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Advantech WDT 'stop' io port (default 0x443)
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wdt_start:
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Advantech WDT 'start' io port (default 0x443)
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timeout:
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Watchdog timeout in seconds. 1<= timeout <=63, default=60.
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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alim1535_wdt:
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timeout:
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Watchdog timeout in seconds. (0 < timeout < 18000, default=60
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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alim7101_wdt:
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timeout:
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Watchdog timeout in seconds. (1<=timeout<=3600, default=30
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use_gpio:
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Use the gpio watchdog (required by old cobalt boards).
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default=0/off/no
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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ar7_wdt:
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margin:
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Watchdog margin in seconds (default=60)
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nowayout:
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Disable watchdog shutdown on close
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(default=kernel config parameter)
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-------------------------------------------------
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armada_37xx_wdt:
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timeout:
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Watchdog timeout in seconds. (default=120)
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nowayout:
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Disable watchdog shutdown on close
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(default=kernel config parameter)
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-------------------------------------------------
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at91rm9200_wdt:
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wdt_time:
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Watchdog time in seconds. (default=5)
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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at91sam9_wdt:
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heartbeat:
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Watchdog heartbeats in seconds. (default = 15)
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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bcm47xx_wdt:
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wdt_time:
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Watchdog time in seconds. (default=30)
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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coh901327_wdt:
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margin:
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Watchdog margin in seconds (default 60s)
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-------------------------------------------------
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cpu5wdt:
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port:
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base address of watchdog card, default is 0x91
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verbose:
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be verbose, default is 0 (no)
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ticks:
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count down ticks, default is 10000
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-------------------------------------------------
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cpwd:
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wd0_timeout:
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Default watchdog0 timeout in 1/10secs
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wd1_timeout:
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Default watchdog1 timeout in 1/10secs
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wd2_timeout:
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Default watchdog2 timeout in 1/10secs
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-------------------------------------------------
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da9052wdt:
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timeout:
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Watchdog timeout in seconds. 2<= timeout <=131, default=2.048s
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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davinci_wdt:
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heartbeat:
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Watchdog heartbeat period in seconds from 1 to 600, default 60
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-------------------------------------------------
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ebc-c384_wdt:
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timeout:
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Watchdog timeout in seconds. (1<=timeout<=15300, default=60)
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nowayout:
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Watchdog cannot be stopped once started
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-------------------------------------------------
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ep93xx_wdt:
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nowayout:
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Watchdog cannot be stopped once started
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timeout:
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Watchdog timeout in seconds. (1<=timeout<=3600, default=TBD)
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-------------------------------------------------
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eurotechwdt:
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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io:
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Eurotech WDT io port (default=0x3f0)
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irq:
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Eurotech WDT irq (default=10)
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ev:
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Eurotech WDT event type (default is `int`)
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-------------------------------------------------
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gef_wdt:
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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geodewdt:
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timeout:
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Watchdog timeout in seconds. 1<= timeout <=131, default=60.
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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i6300esb:
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heartbeat:
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Watchdog heartbeat in seconds. (1<heartbeat<2046, default=30)
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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iTCO_wdt:
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heartbeat:
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Watchdog heartbeat in seconds.
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(2<heartbeat<39 (TCO v1) or 613 (TCO v2), default=30)
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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iTCO_vendor_support:
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vendorsupport:
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iTCO vendor specific support mode, default=0 (none),
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1=SuperMicro Pent3, 2=SuperMicro Pent4+, 911=Broken SMI BIOS
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-------------------------------------------------
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ib700wdt:
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timeout:
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Watchdog timeout in seconds. 0<= timeout <=30, default=30.
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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ibmasr:
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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imx2_wdt:
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timeout:
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Watchdog timeout in seconds (default 60 s)
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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indydog:
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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iop_wdt:
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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it8712f_wdt:
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margin:
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Watchdog margin in seconds (default 60)
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nowayout:
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Disable watchdog shutdown on close
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(default=kernel config parameter)
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-------------------------------------------------
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it87_wdt:
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nogameport:
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Forbid the activation of game port, default=0
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nocir:
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Forbid the use of CIR (workaround for some buggy setups); set to 1 if
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system resets despite watchdog daemon running, default=0
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exclusive:
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Watchdog exclusive device open, default=1
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timeout:
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Watchdog timeout in seconds, default=60
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testmode:
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Watchdog test mode (1 = no reboot), default=0
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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ixp4xx_wdt:
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heartbeat:
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Watchdog heartbeat in seconds (default 60s)
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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ks8695_wdt:
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wdt_time:
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Watchdog time in seconds. (default=5)
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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machzwd:
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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action:
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after watchdog resets, generate:
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0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI
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-------------------------------------------------
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max63xx_wdt:
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heartbeat:
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Watchdog heartbeat period in seconds from 1 to 60, default 60
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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nodelay:
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Force selection of a timeout setting without initial delay
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(max6373/74 only, default=0)
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-------------------------------------------------
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mixcomwd:
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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mpc8xxx_wdt:
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timeout:
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Watchdog timeout in ticks. (0<timeout<65536, default=65535)
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reset:
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Watchdog Interrupt/Reset Mode. 0 = interrupt, 1 = reset
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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mv64x60_wdt:
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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ni903x_wdt:
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timeout:
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Initial watchdog timeout in seconds (0<timeout<516, default=60)
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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nic7018_wdt:
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timeout:
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Initial watchdog timeout in seconds (0<timeout<464, default=80)
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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nuc900_wdt:
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heartbeat:
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Watchdog heartbeats in seconds.
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(default = 15)
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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omap_wdt:
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timer_margin:
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initial watchdog timeout (in seconds)
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early_enable:
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Watchdog is started on module insertion (default=0
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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orion_wdt:
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heartbeat:
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Initial watchdog heartbeat in seconds
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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pc87413_wdt:
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io:
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pc87413 WDT I/O port (default: io).
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timeout:
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Watchdog timeout in minutes (default=timeout).
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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pika_wdt:
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heartbeat:
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Watchdog heartbeats in seconds. (default = 15)
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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-------------------------------------------------
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pnx4008_wdt:
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heartbeat:
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Watchdog heartbeat period in seconds from 1 to 60, default 19
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nowayout:
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Set to 1 to keep watchdog running after device release
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-------------------------------------------------
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pnx833x_wdt:
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timeout:
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Watchdog timeout in Mhz. (68Mhz clock), default=2040000000 (30 seconds)
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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start_enabled:
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Watchdog is started on module insertion (default=1)
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-------------------------------------------------
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rc32434_wdt:
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timeout:
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Watchdog timeout value, in seconds (default=20)
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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|
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-------------------------------------------------
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riowd:
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riowd_timeout:
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Watchdog timeout in minutes (default=1)
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|
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-------------------------------------------------
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s3c2410_wdt:
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tmr_margin:
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Watchdog tmr_margin in seconds. (default=15)
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tmr_atboot:
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Watchdog is started at boot time if set to 1, default=0
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nowayout:
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Watchdog cannot be stopped once started
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(default=kernel config parameter)
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soft_noboot:
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Watchdog action, set to 1 to ignore reboots, 0 to reboot
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debug:
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Watchdog debug, set to >1 for debug, (default 0)
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|
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-------------------------------------------------
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sa1100_wdt:
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margin:
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Watchdog margin in seconds (default 60s)
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|
|
-------------------------------------------------
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sb_wdog:
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timeout:
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Watchdog timeout in microseconds (max/default 8388607 or 8.3ish secs)
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|
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-------------------------------------------------
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sbc60xxwdt:
|
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wdt_stop:
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SBC60xx WDT 'stop' io port (default 0x45)
|
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wdt_start:
|
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SBC60xx WDT 'start' io port (default 0x443)
|
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timeout:
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Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
|
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nowayout:
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Watchdog cannot be stopped once started
|
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(default=kernel config parameter)
|
|
|
|
-------------------------------------------------
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sbc7240_wdt:
|
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timeout:
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Watchdog timeout in seconds. (1<=timeout<=255, default=30)
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nowayout:
|
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Disable watchdog when closing device file
|
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|
|
-------------------------------------------------
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|
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sbc8360:
|
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timeout:
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Index into timeout table (0-63) (default=27 (60s))
|
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nowayout:
|
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Watchdog cannot be stopped once started
|
|
(default=kernel config parameter)
|
|
|
|
-------------------------------------------------
|
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|
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sbc_epx_c3:
|
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nowayout:
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Watchdog cannot be stopped once started
|
|
(default=kernel config parameter)
|
|
|
|
-------------------------------------------------
|
|
|
|
sbc_fitpc2_wdt:
|
|
margin:
|
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Watchdog margin in seconds (default 60s)
|
|
nowayout:
|
|
Watchdog cannot be stopped once started
|
|
|
|
-------------------------------------------------
|
|
|
|
sbsa_gwdt:
|
|
timeout:
|
|
Watchdog timeout in seconds. (default 10s)
|
|
action:
|
|
Watchdog action at the first stage timeout,
|
|
set to 0 to ignore, 1 to panic. (default=0)
|
|
nowayout:
|
|
Watchdog cannot be stopped once started
|
|
(default=kernel config parameter)
|
|
|
|
-------------------------------------------------
|
|
|
|
sc1200wdt:
|
|
isapnp:
|
|
When set to 0 driver ISA PnP support will be disabled (default=1)
|
|
io:
|
|
io port
|
|
timeout:
|
|
range is 0-255 minutes, default is 1
|
|
nowayout:
|
|
Watchdog cannot be stopped once started
|
|
(default=kernel config parameter)
|
|
|
|
-------------------------------------------------
|
|
|
|
sc520_wdt:
|
|
timeout:
|
|
Watchdog timeout in seconds. (1 <= timeout <= 3600, default=30)
|
|
nowayout:
|
|
Watchdog cannot be stopped once started
|
|
(default=kernel config parameter)
|
|
|
|
-------------------------------------------------
|
|
|
|
sch311x_wdt:
|
|
force_id:
|
|
Override the detected device ID
|
|
therm_trip:
|
|
Should a ThermTrip trigger the reset generator
|
|
timeout:
|
|
Watchdog timeout in seconds. 1<= timeout <=15300, default=60
|
|
nowayout:
|
|
Watchdog cannot be stopped once started
|
|
(default=kernel config parameter)
|
|
|
|
-------------------------------------------------
|
|
|
|
scx200_wdt:
|
|
margin:
|
|
Watchdog margin in seconds
|
|
nowayout:
|
|
Disable watchdog shutdown on close
|
|
|
|
-------------------------------------------------
|
|
|
|
shwdt:
|
|
clock_division_ratio:
|
|
Clock division ratio. Valid ranges are from 0x5 (1.31ms)
|
|
to 0x7 (5.25ms). (default=7)
|
|
heartbeat:
|
|
Watchdog heartbeat in seconds. (1 <= heartbeat <= 3600, default=30
|
|
nowayout:
|
|
Watchdog cannot be stopped once started
|
|
(default=kernel config parameter)
|
|
|
|
-------------------------------------------------
|
|
|
|
smsc37b787_wdt:
|
|
timeout:
|
|
range is 1-255 units, default is 60
|
|
nowayout:
|
|
Watchdog cannot be stopped once started
|
|
(default=kernel config parameter)
|
|
|
|
-------------------------------------------------
|
|
|
|
softdog:
|
|
soft_margin:
|
|
Watchdog soft_margin in seconds.
|
|
(0 < soft_margin < 65536, default=60)
|
|
nowayout:
|
|
Watchdog cannot be stopped once started
|
|
(default=kernel config parameter)
|
|
soft_noboot:
|
|
Softdog action, set to 1 to ignore reboots, 0 to reboot
|
|
(default=0)
|
|
|
|
-------------------------------------------------
|
|
|
|
stmp3xxx_wdt:
|
|
heartbeat:
|
|
Watchdog heartbeat period in seconds from 1 to 4194304, default 19
|
|
|
|
-------------------------------------------------
|
|
|
|
tegra_wdt:
|
|
heartbeat:
|
|
Watchdog heartbeats in seconds. (default = 120)
|
|
nowayout:
|
|
Watchdog cannot be stopped once started
|
|
(default=kernel config parameter)
|
|
|
|
-------------------------------------------------
|
|
|
|
ts72xx_wdt:
|
|
timeout:
|
|
Watchdog timeout in seconds. (1 <= timeout <= 8, default=8)
|
|
nowayout:
|
|
Disable watchdog shutdown on close
|
|
|
|
-------------------------------------------------
|
|
|
|
twl4030_wdt:
|
|
nowayout:
|
|
Watchdog cannot be stopped once started
|
|
(default=kernel config parameter)
|
|
|
|
-------------------------------------------------
|
|
|
|
txx9wdt:
|
|
timeout:
|
|
Watchdog timeout in seconds. (0<timeout<N, default=60)
|
|
nowayout:
|
|
Watchdog cannot be stopped once started
|
|
(default=kernel config parameter)
|
|
|
|
-------------------------------------------------
|
|
|
|
uniphier_wdt:
|
|
timeout:
|
|
Watchdog timeout in power of two seconds.
|
|
(1 <= timeout <= 128, default=64)
|
|
nowayout:
|
|
Watchdog cannot be stopped once started
|
|
(default=kernel config parameter)
|
|
|
|
-------------------------------------------------
|
|
|
|
w83627hf_wdt:
|
|
wdt_io:
|
|
w83627hf/thf WDT io port (default 0x2E)
|
|
timeout:
|
|
Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
|
|
nowayout:
|
|
Watchdog cannot be stopped once started
|
|
(default=kernel config parameter)
|
|
|
|
-------------------------------------------------
|
|
|
|
w83877f_wdt:
|
|
timeout:
|
|
Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
|
|
nowayout:
|
|
Watchdog cannot be stopped once started
|
|
(default=kernel config parameter)
|
|
|
|
-------------------------------------------------
|
|
|
|
w83977f_wdt:
|
|
timeout:
|
|
Watchdog timeout in seconds (15..7635), default=45)
|
|
testmode:
|
|
Watchdog testmode (1 = no reboot), default=0
|
|
nowayout:
|
|
Watchdog cannot be stopped once started
|
|
(default=kernel config parameter)
|
|
|
|
-------------------------------------------------
|
|
|
|
wafer5823wdt:
|
|
timeout:
|
|
Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
|
|
nowayout:
|
|
Watchdog cannot be stopped once started
|
|
(default=kernel config parameter)
|
|
|
|
-------------------------------------------------
|
|
|
|
wdt285:
|
|
soft_margin:
|
|
Watchdog timeout in seconds (default=60)
|
|
|
|
-------------------------------------------------
|
|
|
|
wdt977:
|
|
timeout:
|
|
Watchdog timeout in seconds (60..15300, default=60)
|
|
testmode:
|
|
Watchdog testmode (1 = no reboot), default=0
|
|
nowayout:
|
|
Watchdog cannot be stopped once started
|
|
(default=kernel config parameter)
|
|
|
|
-------------------------------------------------
|
|
|
|
wm831x_wdt:
|
|
nowayout:
|
|
Watchdog cannot be stopped once started
|
|
(default=kernel config parameter)
|
|
|
|
-------------------------------------------------
|
|
|
|
wm8350_wdt:
|
|
nowayout:
|
|
Watchdog cannot be stopped once started
|
|
(default=kernel config parameter)
|
|
|
|
-------------------------------------------------
|
|
|
|
sun4v_wdt:
|
|
timeout_ms:
|
|
Watchdog timeout in milliseconds 1..180000, default=60000)
|
|
nowayout:
|
|
Watchdog cannot be stopped once started
|