Commit 51e618c3 authored by Linus Torvalds's avatar Linus Torvalds
Browse files

Merge git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog 

* git://git.kernel.org/pub/scm/linux/kernel/git/wim/linux-2.6-watchdog:
  watchdog: Driver for the watchdog timer on Freescale IMX2 (and later) processors.
  watchdog: s3c2410_wdt - Fix on handling of the request_mem_region fail
  watchdog: s3c2410_wdt - Add extra option to include watchdog for Samsung SoCs
  iTCO_wdt: fix TCO V1 timeout values and limits
  watchdog: twl4030_wdt: Disable watchdog during probing
  watchdog: update/improve/consolidate watchdog driver
  watchdog: booke_wdt: fix ioctl status flags
  watchdog: fix several MODULE_PARM_DESC strings
  watchdog: bfin: use new common Blackfin watchdog header
parents f16a5e34 bb2fd8a8

Documentation/kernel-parameters.txt

+4 −11
Original line number Diff line number Diff line
@@ -290,9 +290,6 @@ and is between 256 and 4096 characters. It is defined in the file 
	advansys=	[HW,SCSI]

			See header of drivers/scsi/advansys.c.



	advwdt=		[HW,WDT] Advantech WDT

			Format: <iostart>,<iostop>



	aedsp16=	[HW,OSS] Audio Excel DSP 16

			Format: <io>,<irq>,<dma>,<mss_io>,<mpu_io>,<mpu_irq>

			See also header of sound/oss/aedsp16.c.
@@ -765,9 +762,6 @@ and is between 256 and 4096 characters. It is defined in the file 
			This option is obsoleted by the "netdev=" option, which

			has equivalent usage. See its documentation for details.



	eurwdt=		[HW,WDT] Eurotech CPU-1220/1410 onboard watchdog.

			Format: <io>[,<irq>]



	failslab=

	fail_page_alloc=

	fail_make_request=[KNL]
@@ -2267,9 +2261,6 @@ and is between 256 and 4096 characters. It is defined in the file 


	sched_debug	[KNL] Enables verbose scheduler debug messages.



	sc1200wdt=	[HW,WDT] SC1200 WDT (watchdog) driver

			Format: <io>[,<timeout>[,<isapnp>]]



	scsi_debug_*=	[SCSI]

			See drivers/scsi/scsi_debug.c.
@@ -2858,8 +2849,10 @@ and is between 256 and 4096 characters. It is defined in the file 
	wd7000=		[HW,SCSI]

			See header of drivers/scsi/wd7000.c.



	wdt=		[WDT] Watchdog

			See Documentation/watchdog/wdt.txt.

	watchdog timers	[HW,WDT] For information on watchdog timers,

			see Documentation/watchdog/watchdog-parameters.txt

			or other driver-specific files in the

			Documentation/watchdog/ directory.



	x2apic_phys	[X86-64,APIC] Use x2apic physical mode instead of

			default x2apic cluster mode on platforms

Documentation/watchdog/00-INDEX

+5 −0
Original line number Diff line number Diff line 
00-INDEX

	- this file.

hpwdt.txt

	- information on the HP iLO2 NMI watchdog

pcwd-watchdog.txt

	- documentation for Berkshire Products PC Watchdog ISA cards.

src/

	- directory holding watchdog related example programs.

watchdog-api.txt

	- description of the Linux Watchdog driver API.

watchdog-parameters.txt

	- information on driver parameters (for drivers other than

	  the ones that have driver-specific files here)

wdt.txt

	- description of the Watchdog Timer Interfaces for Linux.

Documentation/watchdog/watchdog-parameters.txt

0 → 100644
+390 −0
Original line number Diff line number Diff line 
This file provides information on the module parameters of many of

the Linux watchdog drivers.  Watchdog driver parameter specs should

be listed here unless the driver has its own driver-specific information

file.





See Documentation/kernel-parameters.txt for information on

providing kernel parameters for builtin drivers versus loadable

modules.





-------------------------------------------------

acquirewdt:

wdt_stop: Acquire WDT 'stop' io port (default 0x43)

wdt_start: Acquire WDT 'start' io port (default 0x443)

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

advantechwdt:

wdt_stop: Advantech WDT 'stop' io port (default 0x443)

wdt_start: Advantech WDT 'start' io port (default 0x443)

timeout: Watchdog timeout in seconds. 1<= timeout <=63, default=60.

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

alim1535_wdt:

timeout: Watchdog timeout in seconds. (0 < timeout < 18000, default=60

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

alim7101_wdt:

timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30

use_gpio: Use the gpio watchdog (required by old cobalt boards).

	default=0/off/no

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

ar7_wdt:

margin: Watchdog margin in seconds (default=60)

nowayout: Disable watchdog shutdown on close

	(default=kernel config parameter)

-------------------------------------------------

at32ap700x_wdt:

timeout: Timeout value. Limited to be 1 or 2 seconds. (default=2)

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

at91rm9200_wdt:

wdt_time: Watchdog time in seconds. (default=5)

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

at91sam9_wdt:

heartbeat: Watchdog heartbeats in seconds. (default = 15)

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

bcm47xx_wdt:

wdt_time: Watchdog time in seconds. (default=30)

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

bfin_wdt:

timeout: Watchdog timeout in seconds. (1<=timeout<=((2^32)/SCLK), default=20)

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

coh901327_wdt:

margin: Watchdog margin in seconds (default 60s)

-------------------------------------------------

cpu5wdt:

port: base address of watchdog card, default is 0x91

verbose: be verbose, default is 0 (no)

ticks: count down ticks, default is 10000

-------------------------------------------------

cpwd:

wd0_timeout: Default watchdog0 timeout in 1/10secs

wd1_timeout: Default watchdog1 timeout in 1/10secs

wd2_timeout: Default watchdog2 timeout in 1/10secs

-------------------------------------------------

davinci_wdt:

heartbeat: Watchdog heartbeat period in seconds from 1 to 600, default 60

-------------------------------------------------

ep93xx_wdt:

nowayout: Watchdog cannot be stopped once started

timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=TBD)

-------------------------------------------------

eurotechwdt:

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

io: Eurotech WDT io port (default=0x3f0)

irq: Eurotech WDT irq (default=10)

ev: Eurotech WDT event type (default is `int')

-------------------------------------------------

gef_wdt:

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

geodewdt:

timeout: Watchdog timeout in seconds. 1<= timeout <=131, default=60.

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

i6300esb:

heartbeat: Watchdog heartbeat in seconds. (1<heartbeat<2046, default=30)

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

iTCO_wdt:

heartbeat: Watchdog heartbeat in seconds.

	(2<heartbeat<39 (TCO v1) or 613 (TCO v2), default=30)

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

iTCO_vendor_support:

vendorsupport: iTCO vendor specific support mode, default=0 (none),

	1=SuperMicro Pent3, 2=SuperMicro Pent4+, 911=Broken SMI BIOS

-------------------------------------------------

ib700wdt:

timeout: Watchdog timeout in seconds. 0<= timeout <=30, default=30.

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

ibmasr:

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

indydog:

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

iop_wdt:

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

it8712f_wdt:

margin: Watchdog margin in seconds (default 60)

nowayout: Disable watchdog shutdown on close

	(default=kernel config parameter)

-------------------------------------------------

it87_wdt:

nogameport: Forbid the activation of game port, default=0

exclusive: Watchdog exclusive device open, default=1

timeout: Watchdog timeout in seconds, default=60

testmode: Watchdog test mode (1 = no reboot), default=0

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

ixp2000_wdt:

heartbeat: Watchdog heartbeat in seconds (default 60s)

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

ixp4xx_wdt:

heartbeat: Watchdog heartbeat in seconds (default 60s)

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

ks8695_wdt:

wdt_time: Watchdog time in seconds. (default=5)

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

machzwd:

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

action: after watchdog resets, generate:

	0 = RESET(*)  1 = SMI  2 = NMI  3 = SCI

-------------------------------------------------

max63xx_wdt:

heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 60

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

nodelay: Force selection of a timeout setting without initial delay

	(max6373/74 only, default=0)

-------------------------------------------------

mixcomwd:

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

mpc8xxx_wdt:

timeout: Watchdog timeout in ticks. (0<timeout<65536, default=65535)

reset: Watchdog Interrupt/Reset Mode. 0 = interrupt, 1 = reset

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

mpcore_wdt:

mpcore_margin: MPcore timer margin in seconds.

	(0 < mpcore_margin < 65536, default=60)

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

mpcore_noboot: MPcore watchdog action, set to 1 to ignore reboots,

	0 to reboot (default=0

-------------------------------------------------

mv64x60_wdt:

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

nuc900_wdt:

heartbeat: Watchdog heartbeats in seconds.

	(default = 15)

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

omap_wdt:

timer_margin: initial watchdog timeout (in seconds)

-------------------------------------------------

orion_wdt:

heartbeat: Initial watchdog heartbeat in seconds

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

pc87413_wdt:

io: pc87413 WDT I/O port (default: io).

timeout: Watchdog timeout in minutes (default=timeout).

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

pika_wdt:

heartbeat: Watchdog heartbeats in seconds. (default = 15)

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

pnx4008_wdt:

heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 19

nowayout: Set to 1 to keep watchdog running after device release

-------------------------------------------------

pnx833x_wdt:

timeout: Watchdog timeout in Mhz. (68Mhz clock), default=2040000000 (30 seconds)

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

start_enabled: Watchdog is started on module insertion (default=1)

-------------------------------------------------

rc32434_wdt:

timeout: Watchdog timeout value, in seconds (default=20)

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

riowd:

riowd_timeout: Watchdog timeout in minutes (default=1)

-------------------------------------------------

s3c2410_wdt:

tmr_margin: Watchdog tmr_margin in seconds. (default=15)

tmr_atboot: Watchdog is started at boot time if set to 1, default=0

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

soft_noboot: Watchdog action, set to 1 to ignore reboots, 0 to reboot

debug: Watchdog debug, set to >1 for debug, (default 0)

-------------------------------------------------

sa1100_wdt:

margin: Watchdog margin in seconds (default 60s)

-------------------------------------------------

sb_wdog:

timeout: Watchdog timeout in microseconds (max/default 8388607 or 8.3ish secs)

-------------------------------------------------

sbc60xxwdt:

wdt_stop: SBC60xx WDT 'stop' io port (default 0x45)

wdt_start: SBC60xx WDT 'start' io port (default 0x443)

timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30)

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

sbc7240_wdt:

timeout: Watchdog timeout in seconds. (1<=timeout<=255, default=30)

nowayout: Disable watchdog when closing device file

-------------------------------------------------

sbc8360:

timeout: Index into timeout table (0-63) (default=27 (60s))

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

sbc_epx_c3:

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

-------------------------------------------------

sbc_fitpc2_wdt:

margin: Watchdog margin in seconds (default 60s)

nowayout: Watchdog cannot be stopped once started

-------------------------------------------------

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

-------------------------------------------------

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)

-------------------------------------------------

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)

-------------------------------------------------

w83697hf_wdt:

wdt_io: w83697hf/hg WDT io port (default 0x2e, 0 = autodetect)

timeout: Watchdog timeout in seconds. 1<= timeout <=255 (default=60)

nowayout: Watchdog cannot be stopped once started

	(default=kernel config parameter)

early_disable: Watchdog gets disabled at boot time (default=1)

-------------------------------------------------

w83697ug_wdt:

wdt_io: w83697ug/uf 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)

-------------------------------------------------

Documentation/watchdog/wdt.txt

+11 −4
Original line number Diff line number Diff line
@@ -14,14 +14,22 @@ reboot will depend on the state of the machines and interrupts. The hardware 
boards physically pull the machine down off their own onboard timers and

will reboot from almost anything.



A second temperature monitoring interface is available on the WDT501P cards

A second temperature monitoring interface is available on the WDT501P cards.

This provides /dev/temperature. This is the machine internal temperature in

degrees Fahrenheit. Each read returns a single byte giving the temperature.



The third interface logs kernel messages on additional alert events.



The wdt card cannot be safely probed for. Instead you need to pass

wdt=ioaddr,irq as a boot parameter - eg "wdt=0x240,11".

The ICS ISA-bus wdt card cannot be safely probed for. Instead you need to

pass IO address and IRQ boot parameters.  E.g.:

	wdt.io=0x240 wdt.irq=11



Other "wdt" driver parameters are:

	heartbeat	Watchdog heartbeat in seconds (default 60)

	nowayout	Watchdog cannot be stopped once started (kernel

				build parameter)

	tachometer	WDT501-P Fan Tachometer support (0=disable, default=0)

	type		WDT501-P Card type (500 or 501, default=500)



Features

--------
@@ -40,4 +48,3 @@ Minor numbers are however allocated for it. 




Example Watchdog Driver:  see Documentation/watchdog/src/watchdog-simple.c

drivers/watchdog/Kconfig

+22 −4
Original line number Diff line number Diff line
@@ -145,13 +145,19 @@ config KS8695_WATCHDOG 
	  Watchdog timer embedded into KS8695 processor. This will reboot your

	  system when the timeout is reached.



config HAVE_S3C2410_WATCHDOG

	bool

	help

	  This will include watchdog timer support for Samsung SoCs. If

	  you want to include watchdog support for any machine, kindly

	  select this in the respective mach-XXXX/Kconfig file.



config S3C2410_WATCHDOG

	tristate "S3C2410 Watchdog"

	depends on ARCH_S3C2410

	depends on ARCH_S3C2410 || HAVE_S3C2410_WATCHDOG

	help

	  Watchdog timer block in the Samsung S3C2410 chips. This will

	  reboot the system when the timer expires with the watchdog

	  enabled.

	  Watchdog timer block in the Samsung SoCs. 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)
@@ -306,6 +312,18 @@ config MAX63XX_WATCHDOG 
	help

	  Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.



config IMX2_WDT

	tristate "IMX2+ Watchdog"

	depends on ARCH_MX2 || ARCH_MX25 || ARCH_MX3 || ARCH_MX5

	help

	  This is the driver for the hardware watchdog

	  on the Freescale IMX2 and later processors.

	  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 imx2_wdt.



# AVR32 Architecture



config AT32AP700X_WDT

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