watchdog-parameters.txt 16 KB

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  1. This file provides information on the module parameters of many of
  2. the Linux watchdog drivers. Watchdog driver parameter specs should
  3. be listed here unless the driver has its own driver-specific information
  4. file.
  5. See Documentation/kernel-parameters.txt for information on
  6. providing kernel parameters for builtin drivers versus loadable
  7. modules.
  8. -------------------------------------------------
  9. acquirewdt:
  10. wdt_stop: Acquire WDT 'stop' io port (default 0x43)
  11. wdt_start: Acquire WDT 'start' io port (default 0x443)
  12. nowayout: Watchdog cannot be stopped once started
  13. (default=kernel config parameter)
  14. -------------------------------------------------
  15. advantechwdt:
  16. wdt_stop: Advantech WDT 'stop' io port (default 0x443)
  17. wdt_start: Advantech WDT 'start' io port (default 0x443)
  18. timeout: Watchdog timeout in seconds. 1<= timeout <=63, default=60.
  19. nowayout: Watchdog cannot be stopped once started
  20. (default=kernel config parameter)
  21. -------------------------------------------------
  22. alim1535_wdt:
  23. timeout: Watchdog timeout in seconds. (0 < timeout < 18000, default=60
  24. nowayout: Watchdog cannot be stopped once started
  25. (default=kernel config parameter)
  26. -------------------------------------------------
  27. alim7101_wdt:
  28. timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30
  29. use_gpio: Use the gpio watchdog (required by old cobalt boards).
  30. default=0/off/no
  31. nowayout: Watchdog cannot be stopped once started
  32. (default=kernel config parameter)
  33. -------------------------------------------------
  34. ar7_wdt:
  35. margin: Watchdog margin in seconds (default=60)
  36. nowayout: Disable watchdog shutdown on close
  37. (default=kernel config parameter)
  38. -------------------------------------------------
  39. at32ap700x_wdt:
  40. timeout: Timeout value. Limited to be 1 or 2 seconds. (default=2)
  41. nowayout: Watchdog cannot be stopped once started
  42. (default=kernel config parameter)
  43. -------------------------------------------------
  44. at91rm9200_wdt:
  45. wdt_time: Watchdog time in seconds. (default=5)
  46. nowayout: Watchdog cannot be stopped once started
  47. (default=kernel config parameter)
  48. -------------------------------------------------
  49. at91sam9_wdt:
  50. heartbeat: Watchdog heartbeats in seconds. (default = 15)
  51. nowayout: Watchdog cannot be stopped once started
  52. (default=kernel config parameter)
  53. -------------------------------------------------
  54. bcm47xx_wdt:
  55. wdt_time: Watchdog time in seconds. (default=30)
  56. nowayout: Watchdog cannot be stopped once started
  57. (default=kernel config parameter)
  58. -------------------------------------------------
  59. bfin_wdt:
  60. timeout: Watchdog timeout in seconds. (1<=timeout<=((2^32)/SCLK), default=20)
  61. nowayout: Watchdog cannot be stopped once started
  62. (default=kernel config parameter)
  63. -------------------------------------------------
  64. coh901327_wdt:
  65. margin: Watchdog margin in seconds (default 60s)
  66. -------------------------------------------------
  67. cpu5wdt:
  68. port: base address of watchdog card, default is 0x91
  69. verbose: be verbose, default is 0 (no)
  70. ticks: count down ticks, default is 10000
  71. -------------------------------------------------
  72. cpwd:
  73. wd0_timeout: Default watchdog0 timeout in 1/10secs
  74. wd1_timeout: Default watchdog1 timeout in 1/10secs
  75. wd2_timeout: Default watchdog2 timeout in 1/10secs
  76. -------------------------------------------------
  77. da9052wdt:
  78. timeout: Watchdog timeout in seconds. 2<= timeout <=131, default=2.048s
  79. nowayout: Watchdog cannot be stopped once started
  80. (default=kernel config parameter)
  81. -------------------------------------------------
  82. davinci_wdt:
  83. heartbeat: Watchdog heartbeat period in seconds from 1 to 600, default 60
  84. -------------------------------------------------
  85. ep93xx_wdt:
  86. nowayout: Watchdog cannot be stopped once started
  87. timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=TBD)
  88. -------------------------------------------------
  89. eurotechwdt:
  90. nowayout: Watchdog cannot be stopped once started
  91. (default=kernel config parameter)
  92. io: Eurotech WDT io port (default=0x3f0)
  93. irq: Eurotech WDT irq (default=10)
  94. ev: Eurotech WDT event type (default is `int')
  95. -------------------------------------------------
  96. gef_wdt:
  97. nowayout: Watchdog cannot be stopped once started
  98. (default=kernel config parameter)
  99. -------------------------------------------------
  100. geodewdt:
  101. timeout: Watchdog timeout in seconds. 1<= timeout <=131, default=60.
  102. nowayout: Watchdog cannot be stopped once started
  103. (default=kernel config parameter)
  104. -------------------------------------------------
  105. i6300esb:
  106. heartbeat: Watchdog heartbeat in seconds. (1<heartbeat<2046, default=30)
  107. nowayout: Watchdog cannot be stopped once started
  108. (default=kernel config parameter)
  109. -------------------------------------------------
  110. iTCO_wdt:
  111. heartbeat: Watchdog heartbeat in seconds.
  112. (2<heartbeat<39 (TCO v1) or 613 (TCO v2), default=30)
  113. nowayout: Watchdog cannot be stopped once started
  114. (default=kernel config parameter)
  115. -------------------------------------------------
  116. iTCO_vendor_support:
  117. vendorsupport: iTCO vendor specific support mode, default=0 (none),
  118. 1=SuperMicro Pent3, 2=SuperMicro Pent4+, 911=Broken SMI BIOS
  119. -------------------------------------------------
  120. ib700wdt:
  121. timeout: Watchdog timeout in seconds. 0<= timeout <=30, default=30.
  122. nowayout: Watchdog cannot be stopped once started
  123. (default=kernel config parameter)
  124. -------------------------------------------------
  125. ibmasr:
  126. nowayout: Watchdog cannot be stopped once started
  127. (default=kernel config parameter)
  128. -------------------------------------------------
  129. imx2_wdt:
  130. timeout: Watchdog timeout in seconds (default 60 s)
  131. nowayout: Watchdog cannot be stopped once started
  132. (default=kernel config parameter)
  133. -------------------------------------------------
  134. indydog:
  135. nowayout: Watchdog cannot be stopped once started
  136. (default=kernel config parameter)
  137. -------------------------------------------------
  138. iop_wdt:
  139. nowayout: Watchdog cannot be stopped once started
  140. (default=kernel config parameter)
  141. -------------------------------------------------
  142. it8712f_wdt:
  143. margin: Watchdog margin in seconds (default 60)
  144. nowayout: Disable watchdog shutdown on close
  145. (default=kernel config parameter)
  146. -------------------------------------------------
  147. it87_wdt:
  148. nogameport: Forbid the activation of game port, default=0
  149. nocir: Forbid the use of CIR (workaround for some buggy setups); set to 1 if
  150. system resets despite watchdog daemon running, default=0
  151. exclusive: Watchdog exclusive device open, default=1
  152. timeout: Watchdog timeout in seconds, default=60
  153. testmode: Watchdog test mode (1 = no reboot), default=0
  154. nowayout: Watchdog cannot be stopped once started
  155. (default=kernel config parameter)
  156. -------------------------------------------------
  157. ixp2000_wdt:
  158. heartbeat: Watchdog heartbeat in seconds (default 60s)
  159. nowayout: Watchdog cannot be stopped once started
  160. (default=kernel config parameter)
  161. -------------------------------------------------
  162. ixp4xx_wdt:
  163. heartbeat: Watchdog heartbeat in seconds (default 60s)
  164. nowayout: Watchdog cannot be stopped once started
  165. (default=kernel config parameter)
  166. -------------------------------------------------
  167. ks8695_wdt:
  168. wdt_time: Watchdog time in seconds. (default=5)
  169. nowayout: Watchdog cannot be stopped once started
  170. (default=kernel config parameter)
  171. -------------------------------------------------
  172. machzwd:
  173. nowayout: Watchdog cannot be stopped once started
  174. (default=kernel config parameter)
  175. action: after watchdog resets, generate:
  176. 0 = RESET(*) 1 = SMI 2 = NMI 3 = SCI
  177. -------------------------------------------------
  178. max63xx_wdt:
  179. heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 60
  180. nowayout: Watchdog cannot be stopped once started
  181. (default=kernel config parameter)
  182. nodelay: Force selection of a timeout setting without initial delay
  183. (max6373/74 only, default=0)
  184. -------------------------------------------------
  185. mixcomwd:
  186. nowayout: Watchdog cannot be stopped once started
  187. (default=kernel config parameter)
  188. -------------------------------------------------
  189. mpc8xxx_wdt:
  190. timeout: Watchdog timeout in ticks. (0<timeout<65536, default=65535)
  191. reset: Watchdog Interrupt/Reset Mode. 0 = interrupt, 1 = reset
  192. nowayout: Watchdog cannot be stopped once started
  193. (default=kernel config parameter)
  194. -------------------------------------------------
  195. mv64x60_wdt:
  196. nowayout: Watchdog cannot be stopped once started
  197. (default=kernel config parameter)
  198. -------------------------------------------------
  199. nuc900_wdt:
  200. heartbeat: Watchdog heartbeats in seconds.
  201. (default = 15)
  202. nowayout: Watchdog cannot be stopped once started
  203. (default=kernel config parameter)
  204. -------------------------------------------------
  205. omap_wdt:
  206. timer_margin: initial watchdog timeout (in seconds)
  207. -------------------------------------------------
  208. orion_wdt:
  209. heartbeat: Initial watchdog heartbeat in seconds
  210. nowayout: Watchdog cannot be stopped once started
  211. (default=kernel config parameter)
  212. -------------------------------------------------
  213. pc87413_wdt:
  214. io: pc87413 WDT I/O port (default: io).
  215. timeout: Watchdog timeout in minutes (default=timeout).
  216. nowayout: Watchdog cannot be stopped once started
  217. (default=kernel config parameter)
  218. -------------------------------------------------
  219. pika_wdt:
  220. heartbeat: Watchdog heartbeats in seconds. (default = 15)
  221. nowayout: Watchdog cannot be stopped once started
  222. (default=kernel config parameter)
  223. -------------------------------------------------
  224. pnx4008_wdt:
  225. heartbeat: Watchdog heartbeat period in seconds from 1 to 60, default 19
  226. nowayout: Set to 1 to keep watchdog running after device release
  227. -------------------------------------------------
  228. pnx833x_wdt:
  229. timeout: Watchdog timeout in Mhz. (68Mhz clock), default=2040000000 (30 seconds)
  230. nowayout: Watchdog cannot be stopped once started
  231. (default=kernel config parameter)
  232. start_enabled: Watchdog is started on module insertion (default=1)
  233. -------------------------------------------------
  234. rc32434_wdt:
  235. timeout: Watchdog timeout value, in seconds (default=20)
  236. nowayout: Watchdog cannot be stopped once started
  237. (default=kernel config parameter)
  238. -------------------------------------------------
  239. riowd:
  240. riowd_timeout: Watchdog timeout in minutes (default=1)
  241. -------------------------------------------------
  242. s3c2410_wdt:
  243. tmr_margin: Watchdog tmr_margin in seconds. (default=15)
  244. tmr_atboot: Watchdog is started at boot time if set to 1, default=0
  245. nowayout: Watchdog cannot be stopped once started
  246. (default=kernel config parameter)
  247. soft_noboot: Watchdog action, set to 1 to ignore reboots, 0 to reboot
  248. debug: Watchdog debug, set to >1 for debug, (default 0)
  249. -------------------------------------------------
  250. sa1100_wdt:
  251. margin: Watchdog margin in seconds (default 60s)
  252. -------------------------------------------------
  253. sb_wdog:
  254. timeout: Watchdog timeout in microseconds (max/default 8388607 or 8.3ish secs)
  255. -------------------------------------------------
  256. sbc60xxwdt:
  257. wdt_stop: SBC60xx WDT 'stop' io port (default 0x45)
  258. wdt_start: SBC60xx WDT 'start' io port (default 0x443)
  259. timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
  260. nowayout: Watchdog cannot be stopped once started
  261. (default=kernel config parameter)
  262. -------------------------------------------------
  263. sbc7240_wdt:
  264. timeout: Watchdog timeout in seconds. (1<=timeout<=255, default=30)
  265. nowayout: Disable watchdog when closing device file
  266. -------------------------------------------------
  267. sbc8360:
  268. timeout: Index into timeout table (0-63) (default=27 (60s))
  269. nowayout: Watchdog cannot be stopped once started
  270. (default=kernel config parameter)
  271. -------------------------------------------------
  272. sbc_epx_c3:
  273. nowayout: Watchdog cannot be stopped once started
  274. (default=kernel config parameter)
  275. -------------------------------------------------
  276. sbc_fitpc2_wdt:
  277. margin: Watchdog margin in seconds (default 60s)
  278. nowayout: Watchdog cannot be stopped once started
  279. -------------------------------------------------
  280. sc1200wdt:
  281. isapnp: When set to 0 driver ISA PnP support will be disabled (default=1)
  282. io: io port
  283. timeout: range is 0-255 minutes, default is 1
  284. nowayout: Watchdog cannot be stopped once started
  285. (default=kernel config parameter)
  286. -------------------------------------------------
  287. sc520_wdt:
  288. timeout: Watchdog timeout in seconds. (1 <= timeout <= 3600, default=30)
  289. nowayout: Watchdog cannot be stopped once started
  290. (default=kernel config parameter)
  291. -------------------------------------------------
  292. sch311x_wdt:
  293. force_id: Override the detected device ID
  294. therm_trip: Should a ThermTrip trigger the reset generator
  295. timeout: Watchdog timeout in seconds. 1<= timeout <=15300, default=60
  296. nowayout: Watchdog cannot be stopped once started
  297. (default=kernel config parameter)
  298. -------------------------------------------------
  299. scx200_wdt:
  300. margin: Watchdog margin in seconds
  301. nowayout: Disable watchdog shutdown on close
  302. -------------------------------------------------
  303. shwdt:
  304. clock_division_ratio: Clock division ratio. Valid ranges are from 0x5 (1.31ms)
  305. to 0x7 (5.25ms). (default=7)
  306. heartbeat: Watchdog heartbeat in seconds. (1 <= heartbeat <= 3600, default=30
  307. nowayout: Watchdog cannot be stopped once started
  308. (default=kernel config parameter)
  309. -------------------------------------------------
  310. smsc37b787_wdt:
  311. timeout: range is 1-255 units, default is 60
  312. nowayout: Watchdog cannot be stopped once started
  313. (default=kernel config parameter)
  314. -------------------------------------------------
  315. softdog:
  316. soft_margin: Watchdog soft_margin in seconds.
  317. (0 < soft_margin < 65536, default=60)
  318. nowayout: Watchdog cannot be stopped once started
  319. (default=kernel config parameter)
  320. soft_noboot: Softdog action, set to 1 to ignore reboots, 0 to reboot
  321. (default=0)
  322. -------------------------------------------------
  323. stmp3xxx_wdt:
  324. heartbeat: Watchdog heartbeat period in seconds from 1 to 4194304, default 19
  325. -------------------------------------------------
  326. tegra_wdt:
  327. heartbeat: Watchdog heartbeats in seconds. (default = 120)
  328. nowayout: Watchdog cannot be stopped once started
  329. (default=kernel config parameter)
  330. -------------------------------------------------
  331. ts72xx_wdt:
  332. timeout: Watchdog timeout in seconds. (1 <= timeout <= 8, default=8)
  333. nowayout: Disable watchdog shutdown on close
  334. -------------------------------------------------
  335. twl4030_wdt:
  336. nowayout: Watchdog cannot be stopped once started
  337. (default=kernel config parameter)
  338. -------------------------------------------------
  339. txx9wdt:
  340. timeout: Watchdog timeout in seconds. (0<timeout<N, default=60)
  341. nowayout: Watchdog cannot be stopped once started
  342. (default=kernel config parameter)
  343. -------------------------------------------------
  344. w83627hf_wdt:
  345. wdt_io: w83627hf/thf WDT io port (default 0x2E)
  346. timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
  347. nowayout: Watchdog cannot be stopped once started
  348. (default=kernel config parameter)
  349. -------------------------------------------------
  350. w83697hf_wdt:
  351. wdt_io: w83697hf/hg WDT io port (default 0x2e, 0 = autodetect)
  352. timeout: Watchdog timeout in seconds. 1<= timeout <=255 (default=60)
  353. nowayout: Watchdog cannot be stopped once started
  354. (default=kernel config parameter)
  355. early_disable: Watchdog gets disabled at boot time (default=1)
  356. -------------------------------------------------
  357. w83697ug_wdt:
  358. wdt_io: w83697ug/uf WDT io port (default 0x2e)
  359. timeout: Watchdog timeout in seconds. 1<= timeout <=255 (default=60)
  360. nowayout: Watchdog cannot be stopped once started
  361. (default=kernel config parameter)
  362. -------------------------------------------------
  363. w83877f_wdt:
  364. timeout: Watchdog timeout in seconds. (1<=timeout<=3600, default=30)
  365. nowayout: Watchdog cannot be stopped once started
  366. (default=kernel config parameter)
  367. -------------------------------------------------
  368. w83977f_wdt:
  369. timeout: Watchdog timeout in seconds (15..7635), default=45)
  370. testmode: Watchdog testmode (1 = no reboot), default=0
  371. nowayout: Watchdog cannot be stopped once started
  372. (default=kernel config parameter)
  373. -------------------------------------------------
  374. wafer5823wdt:
  375. timeout: Watchdog timeout in seconds. 1 <= timeout <= 255, default=60.
  376. nowayout: Watchdog cannot be stopped once started
  377. (default=kernel config parameter)
  378. -------------------------------------------------
  379. wdt285:
  380. soft_margin: Watchdog timeout in seconds (default=60)
  381. -------------------------------------------------
  382. wdt977:
  383. timeout: Watchdog timeout in seconds (60..15300, default=60)
  384. testmode: Watchdog testmode (1 = no reboot), default=0
  385. nowayout: Watchdog cannot be stopped once started
  386. (default=kernel config parameter)
  387. -------------------------------------------------
  388. wm831x_wdt:
  389. nowayout: Watchdog cannot be stopped once started
  390. (default=kernel config parameter)
  391. -------------------------------------------------
  392. wm8350_wdt:
  393. nowayout: Watchdog cannot be stopped once started
  394. (default=kernel config parameter)
  395. -------------------------------------------------