Kconfig 68 KB

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  1. # SPDX-License-Identifier: GPL-2.0-only
  2. #
  3. # Watchdog device configuration
  4. #
  5. menuconfig WATCHDOG
  6. bool "Watchdog Timer Support"
  7. help
  8. If you say Y here (and to one of the following options) and create a
  9. character special file /dev/watchdog with major number 10 and minor
  10. number 130 using mknod ("man mknod"), you will get a watchdog, i.e.:
  11. subsequently opening the file and then failing to write to it for
  12. longer than 1 minute will result in rebooting the machine. This
  13. could be useful for a networked machine that needs to come back
  14. on-line as fast as possible after a lock-up. There's both a watchdog
  15. implementation entirely in software (which can sometimes fail to
  16. reboot the machine) and a driver for hardware watchdog boards, which
  17. are more robust and can also keep track of the temperature inside
  18. your computer. For details, read
  19. <file:Documentation/watchdog/watchdog-api.rst> in the kernel source.
  20. The watchdog is usually used together with the watchdog daemon
  21. which is available from
  22. <https://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon
  23. can also monitor NFS connections and can reboot the machine when the
  24. process table is full.
  25. If unsure, say N.
  26. if WATCHDOG
  27. config WATCHDOG_CORE
  28. tristate "WatchDog Timer Driver Core"
  29. help
  30. Say Y here if you want to use the new watchdog timer driver core.
  31. This driver provides a framework for all watchdog timer drivers
  32. and gives them the /dev/watchdog interface (and later also the
  33. sysfs interface).
  34. config WATCHDOG_NOWAYOUT
  35. bool "Disable watchdog shutdown on close"
  36. help
  37. The default watchdog behaviour (which you get if you say N here) is
  38. to stop the timer if the process managing it closes the file
  39. /dev/watchdog. It's always remotely possible that this process might
  40. get killed. If you say Y here, the watchdog cannot be stopped once
  41. it has been started.
  42. config WATCHDOG_HANDLE_BOOT_ENABLED
  43. bool "Update boot-enabled watchdog until userspace takes over"
  44. default y
  45. help
  46. The default watchdog behaviour (which you get if you say Y here) is
  47. to ping watchdog devices that were enabled before the driver has
  48. been loaded until control is taken over from userspace using the
  49. /dev/watchdog file. If you say N here, the kernel will not update
  50. the watchdog on its own. Thus if your userspace does not start fast
  51. enough your device will reboot.
  52. config WATCHDOG_OPEN_TIMEOUT
  53. int "Timeout value for opening watchdog device"
  54. default 0
  55. help
  56. The maximum time, in seconds, for which the watchdog framework takes
  57. care of pinging a hardware watchdog. A value of 0 means infinite. The
  58. value set here can be overridden by the commandline parameter
  59. "watchdog.open_timeout".
  60. config WATCHDOG_SYSFS
  61. bool "Read different watchdog information through sysfs"
  62. help
  63. Say Y here if you want to enable watchdog device status read through
  64. sysfs attributes.
  65. config WATCHDOG_HRTIMER_PRETIMEOUT
  66. bool "Enable watchdog hrtimer-based pretimeouts"
  67. help
  68. Enable this if you want to use a hrtimer timer based pretimeout for
  69. watchdogs that do not natively support pretimeout support. Be aware
  70. that because this pretimeout functionality uses hrtimers, it may not
  71. be able to fire before the actual watchdog fires in some situations.
  72. comment "Watchdog Pretimeout Governors"
  73. config WATCHDOG_PRETIMEOUT_GOV
  74. bool "Enable watchdog pretimeout governors"
  75. depends on WATCHDOG_CORE
  76. help
  77. The option allows to select watchdog pretimeout governors.
  78. config WATCHDOG_PRETIMEOUT_GOV_SEL
  79. tristate
  80. depends on WATCHDOG_PRETIMEOUT_GOV
  81. default m
  82. select WATCHDOG_PRETIMEOUT_GOV_PANIC if WATCHDOG_PRETIMEOUT_GOV_NOOP=n
  83. if WATCHDOG_PRETIMEOUT_GOV
  84. config WATCHDOG_PRETIMEOUT_GOV_NOOP
  85. tristate "Noop watchdog pretimeout governor"
  86. depends on WATCHDOG_CORE
  87. default WATCHDOG_CORE
  88. help
  89. Noop watchdog pretimeout governor, only an informational
  90. message is added to kernel log buffer.
  91. config WATCHDOG_PRETIMEOUT_GOV_PANIC
  92. tristate "Panic watchdog pretimeout governor"
  93. depends on WATCHDOG_CORE
  94. default WATCHDOG_CORE
  95. help
  96. Panic watchdog pretimeout governor, on watchdog pretimeout
  97. event put the kernel into panic.
  98. choice
  99. prompt "Default Watchdog Pretimeout Governor"
  100. default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
  101. help
  102. This option selects a default watchdog pretimeout governor.
  103. The governor takes its action, if a watchdog is capable
  104. to report a pretimeout event.
  105. config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP
  106. bool "noop"
  107. depends on WATCHDOG_PRETIMEOUT_GOV_NOOP
  108. help
  109. Use noop watchdog pretimeout governor by default. If noop
  110. governor is selected by a user, write a short message to
  111. the kernel log buffer and don't do any system changes.
  112. config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC
  113. bool "panic"
  114. depends on WATCHDOG_PRETIMEOUT_GOV_PANIC
  115. help
  116. Use panic watchdog pretimeout governor by default, if
  117. a watchdog pretimeout event happens, consider that
  118. a watchdog feeder is dead and reboot is unavoidable.
  119. endchoice
  120. endif # WATCHDOG_PRETIMEOUT_GOV
  121. #
  122. # General Watchdog drivers
  123. #
  124. comment "Watchdog Device Drivers"
  125. # Architecture Independent
  126. config SOFT_WATCHDOG
  127. tristate "Software watchdog"
  128. select WATCHDOG_CORE
  129. help
  130. A software monitoring watchdog. This will fail to reboot your system
  131. from some situations that the hardware watchdog will recover
  132. from. Equally it's a lot cheaper to install.
  133. To compile this driver as a module, choose M here: the
  134. module will be called softdog.
  135. config SOFT_WATCHDOG_PRETIMEOUT
  136. bool "Software watchdog pretimeout governor support"
  137. depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV
  138. help
  139. Enable this if you want to use pretimeout governors with the software
  140. watchdog. Be aware that governors might affect the watchdog because it
  141. is purely software, e.g. the panic governor will stall it!
  142. config BD957XMUF_WATCHDOG
  143. tristate "ROHM BD9576MUF and BD9573MUF PMIC Watchdog"
  144. depends on MFD_ROHM_BD957XMUF
  145. select WATCHDOG_CORE
  146. help
  147. Support for the watchdog in the ROHM BD9576 and BD9573 PMICs.
  148. These PMIC ICs contain watchdog block which can be configured
  149. to toggle reset line if SoC fails to ping watchdog via GPIO.
  150. Say Y here to include support for the ROHM BD9576 or BD9573
  151. watchdog. Alternatively say M to compile the driver as a module,
  152. which will be called bd9576_wdt.
  153. config DA9052_WATCHDOG
  154. tristate "Dialog DA9052 Watchdog"
  155. depends on PMIC_DA9052 || COMPILE_TEST
  156. select WATCHDOG_CORE
  157. help
  158. Support for the watchdog in the DA9052 PMIC. Watchdog trigger
  159. cause system reset.
  160. Say Y here to include support for the DA9052 watchdog.
  161. Alternatively say M to compile the driver as a module,
  162. which will be called da9052_wdt.
  163. config DA9055_WATCHDOG
  164. tristate "Dialog Semiconductor DA9055 Watchdog"
  165. depends on MFD_DA9055 || COMPILE_TEST
  166. select WATCHDOG_CORE
  167. help
  168. If you say yes here you get support for watchdog on the Dialog
  169. Semiconductor DA9055 PMIC.
  170. This driver can also be built as a module. If so, the module
  171. will be called da9055_wdt.
  172. config DA9063_WATCHDOG
  173. tristate "Dialog DA9063 Watchdog"
  174. depends on MFD_DA9063 || COMPILE_TEST
  175. depends on I2C
  176. select WATCHDOG_CORE
  177. help
  178. Support for the watchdog in the DA9063 PMIC.
  179. This driver can be built as a module. The module name is da9063_wdt.
  180. config DA9062_WATCHDOG
  181. tristate "Dialog DA9062/61 Watchdog"
  182. depends on MFD_DA9062 || COMPILE_TEST
  183. depends on I2C
  184. select WATCHDOG_CORE
  185. help
  186. Support for the watchdog in the DA9062 and DA9061 PMICs.
  187. This driver can be built as a module. The module name is da9062_wdt.
  188. config GPIO_WATCHDOG
  189. tristate "Watchdog device controlled through GPIO-line"
  190. depends on OF_GPIO
  191. select WATCHDOG_CORE
  192. help
  193. If you say yes here you get support for watchdog device
  194. controlled through GPIO-line.
  195. config GPIO_WATCHDOG_ARCH_INITCALL
  196. bool "Register the watchdog as early as possible"
  197. depends on GPIO_WATCHDOG=y
  198. help
  199. In some situations, the default initcall level (module_init)
  200. in not early enough in the boot process to avoid the watchdog
  201. to be triggered.
  202. If you say yes here, the initcall level would be raised to
  203. arch_initcall.
  204. If in doubt, say N.
  205. config MENF21BMC_WATCHDOG
  206. tristate "MEN 14F021P00 BMC Watchdog"
  207. depends on MFD_MENF21BMC || COMPILE_TEST
  208. depends on I2C
  209. select WATCHDOG_CORE
  210. help
  211. Say Y here to include support for the MEN 14F021P00 BMC Watchdog.
  212. This driver can also be built as a module. If so the module
  213. will be called menf21bmc_wdt.
  214. config MENZ069_WATCHDOG
  215. tristate "MEN 16Z069 Watchdog"
  216. depends on MCB
  217. select WATCHDOG_CORE
  218. help
  219. Say Y here to include support for the MEN 16Z069 Watchdog.
  220. This driver can also be built as a module. If so the module
  221. will be called menz069_wdt.
  222. config WDAT_WDT
  223. tristate "ACPI Watchdog Action Table (WDAT)"
  224. depends on ACPI
  225. select WATCHDOG_CORE
  226. select ACPI_WATCHDOG
  227. help
  228. This driver adds support for systems with ACPI Watchdog Action
  229. Table (WDAT) table. Servers typically have this but it can be
  230. found on some desktop machines as well. This driver will take
  231. over the native iTCO watchdog driver found on many Intel CPUs.
  232. To compile this driver as module, choose M here: the module will
  233. be called wdat_wdt.
  234. config WM831X_WATCHDOG
  235. tristate "WM831x watchdog"
  236. depends on MFD_WM831X
  237. select WATCHDOG_CORE
  238. help
  239. Support for the watchdog in the WM831x AudioPlus PMICs. When
  240. the watchdog triggers the system will be reset.
  241. config WM8350_WATCHDOG
  242. tristate "WM8350 watchdog"
  243. depends on MFD_WM8350
  244. select WATCHDOG_CORE
  245. help
  246. Support for the watchdog in the WM8350 AudioPlus PMIC. When
  247. the watchdog triggers the system will be reset.
  248. config XILINX_WATCHDOG
  249. tristate "Xilinx Watchdog timer"
  250. depends on HAS_IOMEM
  251. select WATCHDOG_CORE
  252. help
  253. Watchdog driver for the xps_timebase_wdt IP core.
  254. To compile this driver as a module, choose M here: the
  255. module will be called of_xilinx_wdt.
  256. config ZIIRAVE_WATCHDOG
  257. tristate "Zodiac RAVE Watchdog Timer"
  258. depends on I2C
  259. select WATCHDOG_CORE
  260. help
  261. Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog
  262. Processor.
  263. To compile this driver as a module, choose M here: the
  264. module will be called ziirave_wdt.
  265. config RAVE_SP_WATCHDOG
  266. tristate "RAVE SP Watchdog timer"
  267. depends on RAVE_SP_CORE
  268. depends on NVMEM || !NVMEM
  269. select WATCHDOG_CORE
  270. help
  271. Support for the watchdog on RAVE SP device.
  272. config MLX_WDT
  273. tristate "Mellanox Watchdog"
  274. depends on MELLANOX_PLATFORM
  275. select WATCHDOG_CORE
  276. select REGMAP
  277. help
  278. This is the driver for the hardware watchdog on Mellanox systems.
  279. If you are going to use it, say Y here, otherwise N.
  280. This driver can be used together with the watchdog daemon.
  281. It can also watch your kernel to make sure it doesn't freeze,
  282. and if it does, it reboots your system after a certain amount of
  283. time.
  284. To compile this driver as a module, choose M here: the
  285. module will be called mlx-wdt.
  286. config SL28CPLD_WATCHDOG
  287. tristate "Kontron sl28cpld Watchdog"
  288. depends on MFD_SL28CPLD || COMPILE_TEST
  289. select WATCHDOG_CORE
  290. help
  291. Say Y here to include support for the watchdog timer
  292. on the Kontron sl28 CPLD.
  293. To compile this driver as a module, choose M here: the
  294. module will be called sl28cpld_wdt.
  295. # ALPHA Architecture
  296. # ARM Architecture
  297. config ARM_SP805_WATCHDOG
  298. tristate "ARM SP805 Watchdog"
  299. depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA
  300. select WATCHDOG_CORE
  301. help
  302. ARM Primecell SP805 Watchdog timer. This will reboot your system when
  303. the timeout is reached.
  304. config ARM_SBSA_WATCHDOG
  305. tristate "ARM SBSA Generic Watchdog"
  306. depends on ARM64
  307. depends on ARM_ARCH_TIMER
  308. select WATCHDOG_CORE
  309. help
  310. ARM SBSA Generic Watchdog has two stage timeouts:
  311. the first signal (WS0) is for alerting the system by interrupt,
  312. the second one (WS1) is a real hardware reset.
  313. More details: ARM DEN0029B - Server Base System Architecture (SBSA)
  314. This driver can operate ARM SBSA Generic Watchdog as a single stage
  315. or a two stages watchdog, it depends on the module parameter "action".
  316. Note: the maximum timeout in the two stages mode is half of that in
  317. the single stage mode.
  318. To compile this driver as module, choose M here: The module
  319. will be called sbsa_gwdt.
  320. config ARMADA_37XX_WATCHDOG
  321. tristate "Armada 37xx watchdog"
  322. depends on ARCH_MVEBU || COMPILE_TEST
  323. depends on HAS_IOMEM
  324. select MFD_SYSCON
  325. select WATCHDOG_CORE
  326. help
  327. Say Y here to include support for the watchdog timer found on
  328. Marvell Armada 37xx SoCs.
  329. To compile this driver as a module, choose M here: the
  330. module will be called armada_37xx_wdt.
  331. config ASM9260_WATCHDOG
  332. tristate "Alphascale ASM9260 watchdog"
  333. depends on MACH_ASM9260 || COMPILE_TEST
  334. depends on OF
  335. select WATCHDOG_CORE
  336. select RESET_CONTROLLER
  337. help
  338. Watchdog timer embedded into Alphascale asm9260 chips. This will
  339. reboot your system when the timeout is reached.
  340. config AT91RM9200_WATCHDOG
  341. tristate "AT91RM9200 watchdog"
  342. depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST
  343. help
  344. Watchdog timer embedded into AT91RM9200 chips. This will reboot your
  345. system when the timeout is reached.
  346. config AT91SAM9X_WATCHDOG
  347. tristate "AT91SAM9X / AT91CAP9 watchdog"
  348. depends on ARCH_AT91 || COMPILE_TEST
  349. select WATCHDOG_CORE
  350. help
  351. Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will
  352. reboot your system when the timeout is reached.
  353. config SAMA5D4_WATCHDOG
  354. tristate "Atmel SAMA5D4 Watchdog Timer"
  355. depends on ARCH_AT91 || COMPILE_TEST
  356. select WATCHDOG_CORE
  357. help
  358. Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips.
  359. Its Watchdog Timer Mode Register can be written more than once.
  360. This will reboot your system when the timeout is reached.
  361. config CADENCE_WATCHDOG
  362. tristate "Cadence Watchdog Timer"
  363. depends on HAS_IOMEM
  364. select WATCHDOG_CORE
  365. help
  366. Say Y here if you want to include support for the watchdog
  367. timer in the Xilinx Zynq.
  368. config 21285_WATCHDOG
  369. tristate "DC21285 watchdog"
  370. depends on FOOTBRIDGE
  371. help
  372. The Intel Footbridge chip contains a built-in watchdog circuit. Say Y
  373. here if you wish to use this. Alternatively say M to compile the
  374. driver as a module, which will be called wdt285.
  375. This driver does not work on all machines. In particular, early CATS
  376. boards have hardware problems that will cause the machine to simply
  377. lock up if the watchdog fires.
  378. "If in doubt, leave it out" - say N.
  379. config 977_WATCHDOG
  380. tristate "NetWinder WB83C977 watchdog"
  381. depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST)
  382. help
  383. Say Y here to include support for the WB977 watchdog included in
  384. NetWinder machines. Alternatively say M to compile the driver as
  385. a module, which will be called wdt977.
  386. Not sure? It's safe to say N.
  387. config FTWDT010_WATCHDOG
  388. tristate "Faraday Technology FTWDT010 watchdog"
  389. depends on ARM || COMPILE_TEST
  390. select WATCHDOG_CORE
  391. default ARCH_GEMINI
  392. help
  393. Say Y here if to include support for the Faraday Technology
  394. FTWDT010 watchdog timer embedded in the Cortina Systems Gemini
  395. family of devices.
  396. To compile this driver as a module, choose M here: the
  397. module will be called ftwdt010_wdt.
  398. config IXP4XX_WATCHDOG
  399. tristate "IXP4xx Watchdog"
  400. depends on ARCH_IXP4XX
  401. select WATCHDOG_CORE
  402. help
  403. Say Y here if to include support for the watchdog timer
  404. in the Intel IXP4xx network processors. This driver can
  405. be built as a module by choosing M. The module will
  406. be called ixp4xx_wdt.
  407. Note: The internal IXP4xx watchdog does a soft CPU reset
  408. which doesn't reset any peripherals. There are circumstances
  409. where the watchdog will fail to reset the board correctly
  410. (e.g., if the boot ROM is in an unreadable state).
  411. Say N if you are unsure.
  412. config S3C2410_WATCHDOG
  413. tristate "S3C2410 Watchdog"
  414. depends on ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || \
  415. COMPILE_TEST
  416. select WATCHDOG_CORE
  417. select MFD_SYSCON if ARCH_EXYNOS
  418. help
  419. Watchdog timer block in the Samsung S3C24xx, S3C64xx, S5Pv210 and
  420. Exynos SoCs. This will reboot the system when the timer expires with
  421. the watchdog enabled.
  422. The driver is limited by the speed of the system's PCLK
  423. signal, so with reasonably fast systems (PCLK around 50-66MHz)
  424. then watchdog intervals of over approximately 20seconds are
  425. unavailable.
  426. Choose Y/M here only if you build for such Samsung SoC.
  427. The driver can be built as a module by choosing M, and will
  428. be called s3c2410_wdt.
  429. config SA1100_WATCHDOG
  430. tristate "SA1100/PXA2xx watchdog"
  431. depends on ARCH_SA1100 || ARCH_PXA
  432. help
  433. Watchdog timer embedded into SA11x0 and PXA2xx chips. This will
  434. reboot your system when timeout is reached.
  435. NOTE: once enabled, this timer cannot be disabled.
  436. To compile this driver as a module, choose M here: the
  437. module will be called sa1100_wdt.
  438. config DW_WATCHDOG
  439. tristate "Synopsys DesignWare watchdog"
  440. depends on HAS_IOMEM
  441. select WATCHDOG_CORE
  442. help
  443. Say Y here if to include support for the Synopsys DesignWare
  444. watchdog timer found in many chips.
  445. To compile this driver as a module, choose M here: the
  446. module will be called dw_wdt.
  447. config EP93XX_WATCHDOG
  448. tristate "EP93xx Watchdog"
  449. depends on ARCH_EP93XX || COMPILE_TEST
  450. select WATCHDOG_CORE
  451. help
  452. Say Y here if to include support for the watchdog timer
  453. embedded in the Cirrus Logic EP93xx family of devices.
  454. To compile this driver as a module, choose M here: the
  455. module will be called ep93xx_wdt.
  456. config OMAP_WATCHDOG
  457. tristate "OMAP Watchdog"
  458. depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST
  459. select WATCHDOG_CORE
  460. help
  461. Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog.
  462. Say 'Y' here to enable the
  463. OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer.
  464. config PNX4008_WATCHDOG
  465. tristate "LPC32XX Watchdog"
  466. depends on ARCH_LPC32XX || COMPILE_TEST
  467. select WATCHDOG_CORE
  468. help
  469. Say Y here if to include support for the watchdog timer
  470. in the LPC32XX processor.
  471. This driver can be built as a module by choosing M. The module
  472. will be called pnx4008_wdt.
  473. Say N if you are unsure.
  474. config DAVINCI_WATCHDOG
  475. tristate "DaVinci watchdog"
  476. depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
  477. select WATCHDOG_CORE
  478. help
  479. Say Y here if to include support for the watchdog timer
  480. in the DaVinci DM644x/DM646x or Keystone processors.
  481. To compile this driver as a module, choose M here: the
  482. module will be called davinci_wdt.
  483. NOTE: once enabled, this timer cannot be disabled.
  484. Say N if you are unsure.
  485. config K3_RTI_WATCHDOG
  486. tristate "Texas Instruments K3 RTI watchdog"
  487. depends on ARCH_K3 || COMPILE_TEST
  488. select WATCHDOG_CORE
  489. help
  490. Say Y here if you want to include support for the K3 watchdog
  491. timer (RTI module) available in the K3 generation of processors.
  492. config ORION_WATCHDOG
  493. tristate "Orion watchdog"
  494. depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST
  495. depends on ARM
  496. select WATCHDOG_CORE
  497. help
  498. Say Y here if to include support for the watchdog timer
  499. in the Marvell Orion5x and Kirkwood ARM SoCs.
  500. To compile this driver as a module, choose M here: the
  501. module will be called orion_wdt.
  502. config RN5T618_WATCHDOG
  503. tristate "Ricoh RN5T618 watchdog"
  504. depends on MFD_RN5T618 || COMPILE_TEST
  505. select WATCHDOG_CORE
  506. help
  507. If you say yes here you get support for watchdog on the Ricoh
  508. RN5T618 PMIC.
  509. This driver can also be built as a module. If so, the module
  510. will be called rn5t618_wdt.
  511. config SUNXI_WATCHDOG
  512. tristate "Allwinner SoCs watchdog support"
  513. depends on ARCH_SUNXI || COMPILE_TEST
  514. select WATCHDOG_CORE
  515. help
  516. Say Y here to include support for the watchdog timer
  517. in Allwinner SoCs.
  518. To compile this driver as a module, choose M here: the
  519. module will be called sunxi_wdt.
  520. config NPCM7XX_WATCHDOG
  521. tristate "Nuvoton NPCM750 watchdog"
  522. depends on ARCH_NPCM || COMPILE_TEST
  523. default y if ARCH_NPCM7XX
  524. select WATCHDOG_CORE
  525. help
  526. Say Y here to include Watchdog timer support for the
  527. watchdog embedded into the NPCM7xx.
  528. This watchdog is used to reset the system and thus cannot be
  529. compiled as a module.
  530. config TWL4030_WATCHDOG
  531. tristate "TWL4030 Watchdog"
  532. depends on TWL4030_CORE
  533. select WATCHDOG_CORE
  534. help
  535. Support for TI TWL4030 watchdog. Say 'Y' here to enable the
  536. watchdog timer support for TWL4030 chips.
  537. config STMP3XXX_RTC_WATCHDOG
  538. tristate "Freescale STMP3XXX & i.MX23/28 watchdog"
  539. depends on RTC_DRV_STMP || COMPILE_TEST
  540. select WATCHDOG_CORE
  541. help
  542. Say Y here to include support for the watchdog timer inside
  543. the RTC for the STMP37XX/378X or i.MX23/28 SoC.
  544. To compile this driver as a module, choose M here: the
  545. module will be called stmp3xxx_rtc_wdt.
  546. config TS4800_WATCHDOG
  547. tristate "TS-4800 Watchdog"
  548. depends on HAS_IOMEM && OF
  549. depends on SOC_IMX51 || COMPILE_TEST
  550. select WATCHDOG_CORE
  551. select MFD_SYSCON
  552. help
  553. Technologic Systems TS-4800 has watchdog timer implemented in
  554. an external FPGA. Say Y here if you want to support for the
  555. watchdog timer on TS-4800 board.
  556. config TS72XX_WATCHDOG
  557. tristate "TS-72XX SBC Watchdog"
  558. depends on MACH_TS72XX || COMPILE_TEST
  559. select WATCHDOG_CORE
  560. help
  561. Technologic Systems TS-7200, TS-7250 and TS-7260 boards have
  562. watchdog timer implemented in a external CPLD chip. Say Y here
  563. if you want to support for the watchdog timer on TS-72XX boards.
  564. To compile this driver as a module, choose M here: the
  565. module will be called ts72xx_wdt.
  566. config MAX63XX_WATCHDOG
  567. tristate "Max63xx watchdog"
  568. depends on HAS_IOMEM
  569. select WATCHDOG_CORE
  570. help
  571. Support for memory mapped max63{69,70,71,72,73,74} watchdog timer.
  572. config MAX77620_WATCHDOG
  573. tristate "Maxim Max77620 Watchdog Timer"
  574. depends on MFD_MAX77620 || MFD_MAX77714 || COMPILE_TEST
  575. select WATCHDOG_CORE
  576. help
  577. This is the driver for the Max77620 watchdog timer.
  578. Say 'Y' here to enable the watchdog timer support for
  579. MAX77620 chips. To compile this driver as a module,
  580. choose M here: the module will be called max77620_wdt.
  581. config IMX2_WDT
  582. tristate "IMX2+ Watchdog"
  583. depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST
  584. select REGMAP_MMIO
  585. select WATCHDOG_CORE
  586. help
  587. This is the driver for the hardware watchdog
  588. on the Freescale IMX2 and later processors.
  589. If you have one of these processors and wish to have
  590. watchdog support enabled, say Y, otherwise say N.
  591. To compile this driver as a module, choose M here: the
  592. module will be called imx2_wdt.
  593. config IMX_SC_WDT
  594. tristate "IMX SC Watchdog"
  595. depends on HAVE_ARM_SMCCC
  596. depends on IMX_SCU
  597. select WATCHDOG_CORE
  598. help
  599. This is the driver for the system controller watchdog
  600. on the NXP i.MX SoCs with system controller inside, the
  601. watchdog driver will call ARM SMC API and trap into
  602. ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware
  603. will request system controller to execute the operations.
  604. If you have one of these processors and wish to have
  605. watchdog support enabled, say Y, otherwise say N.
  606. To compile this driver as a module, choose M here: the
  607. module will be called imx_sc_wdt.
  608. config IMX7ULP_WDT
  609. tristate "IMX7ULP Watchdog"
  610. depends on ARCH_MXC || COMPILE_TEST
  611. select WATCHDOG_CORE
  612. help
  613. This is the driver for the hardware watchdog on the Freescale
  614. IMX7ULP and later processors. If you have one of these
  615. processors and wish to have watchdog support enabled,
  616. say Y, otherwise say N.
  617. To compile this driver as a module, choose M here: the
  618. module will be called imx7ulp_wdt.
  619. config DB500_WATCHDOG
  620. tristate "ST-Ericsson DB800 watchdog"
  621. depends on MFD_DB8500_PRCMU
  622. select WATCHDOG_CORE
  623. default y
  624. help
  625. Say Y here to include Watchdog timer support for the watchdog
  626. existing in the prcmu of ST-Ericsson DB8500 platform.
  627. To compile this driver as a module, choose M here: the
  628. module will be called db500_wdt.
  629. config RETU_WATCHDOG
  630. tristate "Retu watchdog"
  631. depends on MFD_RETU
  632. select WATCHDOG_CORE
  633. help
  634. Retu watchdog driver for Nokia Internet Tablets (770, N800,
  635. N810). At least on N800 the watchdog cannot be disabled, so
  636. this driver is essential and you should enable it.
  637. To compile this driver as a module, choose M here: the
  638. module will be called retu_wdt.
  639. config MOXART_WDT
  640. tristate "MOXART watchdog"
  641. depends on ARCH_MOXART || COMPILE_TEST
  642. help
  643. Say Y here to include Watchdog timer support for the watchdog
  644. existing on the MOXA ART SoC series platforms.
  645. To compile this driver as a module, choose M here: the
  646. module will be called moxart_wdt.
  647. config ST_LPC_WATCHDOG
  648. tristate "STMicroelectronics LPC Watchdog"
  649. depends on ARCH_STI || COMPILE_TEST
  650. depends on OF
  651. select WATCHDOG_CORE
  652. help
  653. Say Y here to include STMicroelectronics Low Power Controller
  654. (LPC) based Watchdog timer support.
  655. To compile this driver as a module, choose M here: the
  656. module will be called st_lpc_wdt.
  657. config TEGRA_WATCHDOG
  658. tristate "Tegra watchdog"
  659. depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM
  660. select WATCHDOG_CORE
  661. help
  662. Say Y here to include support for the watchdog timer
  663. embedded in NVIDIA Tegra SoCs.
  664. To compile this driver as a module, choose M here: the
  665. module will be called tegra_wdt.
  666. config QCOM_WDT
  667. tristate "QCOM watchdog"
  668. depends on HAS_IOMEM
  669. depends on ARCH_QCOM || COMPILE_TEST
  670. select WATCHDOG_CORE
  671. help
  672. Say Y here to include Watchdog timer support for the watchdog found
  673. on QCOM chipsets. Currently supported targets are the MSM8960,
  674. APQ8064, and IPQ8064.
  675. To compile this driver as a module, choose M here: the
  676. module will be called qcom_wdt.
  677. config MESON_GXBB_WATCHDOG
  678. tristate "Amlogic Meson GXBB SoCs watchdog support"
  679. depends on ARCH_MESON || COMPILE_TEST
  680. select WATCHDOG_CORE
  681. help
  682. Say Y here to include support for the watchdog timer
  683. in Amlogic Meson GXBB SoCs.
  684. To compile this driver as a module, choose M here: the
  685. module will be called meson_gxbb_wdt.
  686. config MESON_WATCHDOG
  687. tristate "Amlogic Meson SoCs watchdog support"
  688. depends on ARCH_MESON || COMPILE_TEST
  689. select WATCHDOG_CORE
  690. help
  691. Say Y here to include support for the watchdog timer
  692. in Amlogic Meson SoCs.
  693. To compile this driver as a module, choose M here: the
  694. module will be called meson_wdt.
  695. config MEDIATEK_WATCHDOG
  696. tristate "Mediatek SoCs watchdog support"
  697. depends on ARCH_MEDIATEK || COMPILE_TEST
  698. default ARCH_MEDIATEK
  699. select WATCHDOG_CORE
  700. select RESET_CONTROLLER
  701. help
  702. Say Y here to include support for the watchdog timer
  703. in Mediatek SoCs.
  704. To compile this driver as a module, choose M here: the
  705. module will be called mtk_wdt.
  706. config DIGICOLOR_WATCHDOG
  707. tristate "Conexant Digicolor SoCs watchdog support"
  708. depends on ARCH_DIGICOLOR || COMPILE_TEST
  709. select WATCHDOG_CORE
  710. help
  711. Say Y here to include support for the watchdog timer
  712. in Conexant Digicolor SoCs.
  713. To compile this driver as a module, choose M here: the
  714. module will be called digicolor_wdt.
  715. config ARM_SMC_WATCHDOG
  716. tristate "ARM Secure Monitor Call based watchdog support"
  717. depends on ARM || ARM64
  718. depends on OF
  719. depends on HAVE_ARM_SMCCC
  720. select WATCHDOG_CORE
  721. help
  722. Say Y here to include support for a watchdog timer
  723. implemented by the EL3 Secure Monitor on ARM platforms.
  724. Requires firmware support.
  725. To compile this driver as a module, choose M here: the
  726. module will be called arm_smc_wdt.
  727. config LPC18XX_WATCHDOG
  728. tristate "LPC18xx/43xx Watchdog"
  729. depends on ARCH_LPC18XX || COMPILE_TEST
  730. depends on HAS_IOMEM
  731. select WATCHDOG_CORE
  732. help
  733. Say Y here if to include support for the watchdog timer
  734. in NXP LPC SoCs family, which includes LPC18xx/LPC43xx
  735. processors.
  736. To compile this driver as a module, choose M here: the
  737. module will be called lpc18xx_wdt.
  738. config RENESAS_WDT
  739. tristate "Renesas WDT Watchdog"
  740. depends on ARCH_RENESAS || COMPILE_TEST
  741. select WATCHDOG_CORE
  742. help
  743. This driver adds watchdog support for the integrated watchdogs in the
  744. Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT).
  745. config RENESAS_RZAWDT
  746. tristate "Renesas RZ/A WDT Watchdog"
  747. depends on ARCH_RENESAS || COMPILE_TEST
  748. select WATCHDOG_CORE
  749. help
  750. This driver adds watchdog support for the integrated watchdogs in the
  751. Renesas RZ/A SoCs. These watchdogs can be used to reset a system.
  752. config RENESAS_RZN1WDT
  753. tristate "Renesas RZ/N1 watchdog"
  754. depends on ARCH_RENESAS || COMPILE_TEST
  755. select WATCHDOG_CORE
  756. help
  757. This driver adds watchdog support for the integrated watchdogs in the
  758. Renesas RZ/N1 SoCs. These watchdogs can be used to reset a system.
  759. config RENESAS_RZG2LWDT
  760. tristate "Renesas RZ/G2L WDT Watchdog"
  761. depends on ARCH_RENESAS || COMPILE_TEST
  762. select WATCHDOG_CORE
  763. help
  764. This driver adds watchdog support for the integrated watchdogs in the
  765. Renesas RZ/G2L SoCs. These watchdogs can be used to reset a system.
  766. config ASPEED_WATCHDOG
  767. tristate "Aspeed BMC watchdog support"
  768. depends on ARCH_ASPEED || COMPILE_TEST
  769. select WATCHDOG_CORE
  770. help
  771. Say Y here to include support for the watchdog timer
  772. in Aspeed BMC SoCs.
  773. This driver is required to reboot the SoC.
  774. To compile this driver as a module, choose M here: the
  775. module will be called aspeed_wdt.
  776. config STM32_WATCHDOG
  777. tristate "STM32 Independent WatchDoG (IWDG) support"
  778. depends on ARCH_STM32
  779. select WATCHDOG_CORE
  780. default y
  781. help
  782. Say Y here to include support for the watchdog timer
  783. in stm32 SoCs.
  784. To compile this driver as a module, choose M here: the
  785. module will be called stm32_iwdg.
  786. config STPMIC1_WATCHDOG
  787. tristate "STPMIC1 PMIC watchdog support"
  788. depends on MFD_STPMIC1
  789. select WATCHDOG_CORE
  790. help
  791. Say Y here to include watchdog support embedded into STPMIC1 PMIC.
  792. If the watchdog timer expires, stpmic1 will shut down all its power
  793. supplies.
  794. To compile this driver as a module, choose M here: the
  795. module will be called spmic1_wdt.
  796. config UNIPHIER_WATCHDOG
  797. tristate "UniPhier watchdog support"
  798. depends on ARCH_UNIPHIER || COMPILE_TEST
  799. depends on OF && MFD_SYSCON
  800. select WATCHDOG_CORE
  801. help
  802. Say Y here to include support watchdog timer embedded
  803. into the UniPhier system.
  804. To compile this driver as a module, choose M here: the
  805. module will be called uniphier_wdt.
  806. config RTD119X_WATCHDOG
  807. bool "Realtek RTD119x/RTD129x watchdog support"
  808. depends on ARCH_REALTEK || COMPILE_TEST
  809. depends on OF
  810. select WATCHDOG_CORE
  811. default ARCH_REALTEK
  812. help
  813. Say Y here to include support for the watchdog timer in
  814. Realtek RTD1295 SoCs.
  815. config REALTEK_OTTO_WDT
  816. tristate "Realtek Otto MIPS watchdog support"
  817. depends on MACH_REALTEK_RTL || COMPILE_TEST
  818. depends on COMMON_CLK
  819. select WATCHDOG_CORE
  820. default MACH_REALTEK_RTL
  821. help
  822. Say Y here to include support for the watchdog timer on Realtek
  823. RTL838x, RTL839x, RTL930x SoCs. This watchdog has pretimeout
  824. notifications and system reset on timeout.
  825. When built as a module this will be called realtek_otto_wdt.
  826. config SPRD_WATCHDOG
  827. tristate "Spreadtrum watchdog support"
  828. depends on ARCH_SPRD || COMPILE_TEST
  829. select WATCHDOG_CORE
  830. help
  831. Say Y here to include watchdog timer supported
  832. by Spreadtrum system.
  833. config PM8916_WATCHDOG
  834. tristate "QCOM PM8916 pmic watchdog"
  835. depends on OF && MFD_SPMI_PMIC
  836. select WATCHDOG_CORE
  837. help
  838. Say Y here to include support watchdog timer embedded into the
  839. pm8916 module.
  840. config VISCONTI_WATCHDOG
  841. tristate "Toshiba Visconti series watchdog support"
  842. depends on ARCH_VISCONTI || COMPILE_TEST
  843. select WATCHDOG_CORE
  844. help
  845. Say Y here to include support for the watchdog timer in Toshiba
  846. Visconti SoCs.
  847. config MSC313E_WATCHDOG
  848. tristate "MStar MSC313e watchdog"
  849. depends on ARCH_MSTARV7 || COMPILE_TEST
  850. select WATCHDOG_CORE
  851. help
  852. Say Y here to include support for the Watchdog timer embedded
  853. into MStar MSC313e chips. This will reboot your system when the
  854. timeout is reached.
  855. To compile this driver as a module, choose M here: the
  856. module will be called msc313e_wdt.
  857. config APPLE_WATCHDOG
  858. tristate "Apple SoC watchdog"
  859. depends on ARCH_APPLE || COMPILE_TEST
  860. select WATCHDOG_CORE
  861. help
  862. Say Y here to include support for the Watchdog found in Apple
  863. SoCs such as the M1. Next to the common watchdog features this
  864. driver is also required in order to reboot these SoCs.
  865. To compile this driver as a module, choose M here: the
  866. module will be called apple_wdt.
  867. config SUNPLUS_WATCHDOG
  868. tristate "Sunplus watchdog support"
  869. depends on ARCH_SUNPLUS || COMPILE_TEST
  870. select WATCHDOG_CORE
  871. help
  872. Say Y here to include support for the watchdog timer
  873. in Sunplus SoCs.
  874. To compile this driver as a module, choose M here: the
  875. module will be called sunplus_wdt.
  876. # X86 (i386 + ia64 + x86_64) Architecture
  877. config ACQUIRE_WDT
  878. tristate "Acquire SBC Watchdog Timer"
  879. depends on X86
  880. help
  881. This is the driver for the hardware watchdog on Single Board
  882. Computers produced by Acquire Inc (and others). This watchdog
  883. simply watches your kernel to make sure it doesn't freeze, and if
  884. it does, it reboots your computer after a certain amount of time.
  885. To compile this driver as a module, choose M here: the
  886. module will be called acquirewdt.
  887. Most people will say N.
  888. config ADVANTECH_WDT
  889. tristate "Advantech SBC Watchdog Timer"
  890. depends on X86
  891. help
  892. If you are configuring a Linux kernel for the Advantech single-board
  893. computer, say `Y' here to support its built-in watchdog timer
  894. feature. More information can be found at
  895. <https://www.advantech.com.tw/products/>
  896. config ALIM1535_WDT
  897. tristate "ALi M1535 PMU Watchdog Timer"
  898. depends on X86 && PCI
  899. help
  900. This is the driver for the hardware watchdog on the ALi M1535 PMU.
  901. To compile this driver as a module, choose M here: the
  902. module will be called alim1535_wdt.
  903. Most people will say N.
  904. config ALIM7101_WDT
  905. tristate "ALi M7101 PMU Computer Watchdog"
  906. depends on PCI
  907. help
  908. This is the driver for the hardware watchdog on the ALi M7101 PMU
  909. as used in the x86 Cobalt servers and also found in some
  910. SPARC Netra servers too.
  911. To compile this driver as a module, choose M here: the
  912. module will be called alim7101_wdt.
  913. Most people will say N.
  914. config EBC_C384_WDT
  915. tristate "WinSystems EBC-C384 Watchdog Timer"
  916. depends on X86
  917. select ISA_BUS_API
  918. select WATCHDOG_CORE
  919. help
  920. Enables watchdog timer support for the watchdog timer on the
  921. WinSystems EBC-C384 motherboard. The timeout may be configured via
  922. the timeout module parameter.
  923. config EXAR_WDT
  924. tristate "Exar Watchdog Timer"
  925. depends on X86
  926. select WATCHDOG_CORE
  927. help
  928. Enables watchdog timer support for the watchdog timer present
  929. in some Exar/MaxLinear UART chips like the XR28V38x.
  930. To compile this driver as a module, choose M here: the
  931. module will be called exar_wdt.
  932. config F71808E_WDT
  933. tristate "Fintek F718xx, F818xx Super I/O Watchdog"
  934. depends on X86
  935. select WATCHDOG_CORE
  936. help
  937. This is the driver for the hardware watchdog on the Fintek F71808E,
  938. F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and
  939. F81866 Super I/O controllers.
  940. You can compile this driver directly into the kernel, or use
  941. it as a module. The module will be called f71808e_wdt.
  942. config SP5100_TCO
  943. tristate "AMD/ATI SP5100 TCO Timer/Watchdog"
  944. depends on X86 && PCI
  945. select WATCHDOG_CORE
  946. help
  947. Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO
  948. (Total Cost of Ownership) timer is a watchdog timer that will reboot
  949. the machine after its expiration. The expiration time can be
  950. configured with the "heartbeat" parameter.
  951. To compile this driver as a module, choose M here: the
  952. module will be called sp5100_tco.
  953. config GEODE_WDT
  954. tristate "AMD Geode CS5535/CS5536 Watchdog"
  955. depends on CS5535_MFGPT
  956. help
  957. This driver enables a watchdog capability built into the
  958. CS5535/CS5536 companion chips for the AMD Geode GX and LX
  959. processors. This watchdog watches your kernel to make sure
  960. it doesn't freeze, and if it does, it reboots your computer after
  961. a certain amount of time.
  962. You can compile this driver directly into the kernel, or use
  963. it as a module. The module will be called geodewdt.
  964. config SC520_WDT
  965. tristate "AMD Elan SC520 processor Watchdog"
  966. depends on MELAN || COMPILE_TEST
  967. help
  968. This is the driver for the hardware watchdog built in to the
  969. AMD "Elan" SC520 microcomputer commonly used in embedded systems.
  970. This watchdog simply watches your kernel to make sure it doesn't
  971. freeze, and if it does, it reboots your computer after a certain
  972. amount of time.
  973. You can compile this driver directly into the kernel, or use
  974. it as a module. The module will be called sc520_wdt.
  975. config SBC_FITPC2_WATCHDOG
  976. tristate "Compulab SBC-FITPC2 watchdog"
  977. depends on X86
  978. help
  979. This is the driver for the built-in watchdog timer on the fit-PC2,
  980. fit-PC2i, CM-iAM single-board computers made by Compulab.
  981. It's possible to enable the watchdog timer either from BIOS (F2) or
  982. from booted Linux.
  983. When the "Watchdog Timer Value" is enabled one can set 31-255 seconds
  984. operational range.
  985. Entering BIOS setup temporarily disables watchdog operation regardless
  986. of current state, so system will not be restarted while user is in
  987. BIOS setup.
  988. Once the watchdog is enabled the system will be restarted every
  989. "Watchdog Timer Value" period, so to prevent it user can restart or
  990. disable the watchdog.
  991. To compile this driver as a module, choose M here: the
  992. module will be called sbc_fitpc2_wdt.
  993. Most people will say N.
  994. config EUROTECH_WDT
  995. tristate "Eurotech CPU-1220/1410 Watchdog Timer"
  996. depends on X86
  997. help
  998. Enable support for the watchdog timer on the Eurotech CPU-1220 and
  999. CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product
  1000. information are at <http://www.eurotech.it/>.
  1001. config IB700_WDT
  1002. tristate "IB700 SBC Watchdog Timer"
  1003. depends on X86
  1004. help
  1005. This is the driver for the hardware watchdog on the IB700 Single
  1006. Board Computer produced by TMC Technology (www.tmc-uk.com). This
  1007. watchdog simply watches your kernel to make sure it doesn't freeze,
  1008. and if it does, it reboots your computer after a certain amount of time.
  1009. This driver is like the WDT501 driver but for slightly different
  1010. hardware.
  1011. To compile this driver as a module, choose M here: the
  1012. module will be called ib700wdt.
  1013. Most people will say N.
  1014. config IBMASR
  1015. tristate "IBM Automatic Server Restart"
  1016. depends on X86
  1017. help
  1018. This is the driver for the IBM Automatic Server Restart watchdog
  1019. timer built-in into some eServer xSeries machines.
  1020. To compile this driver as a module, choose M here: the
  1021. module will be called ibmasr.
  1022. config WAFER_WDT
  1023. tristate "ICP Single Board Computer Watchdog Timer"
  1024. depends on X86
  1025. help
  1026. This is a driver for the hardware watchdog on the ICP Single
  1027. Board Computer. This driver is working on (at least) the following
  1028. IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782.
  1029. To compile this driver as a module, choose M here: the
  1030. module will be called wafer5823wdt.
  1031. config I6300ESB_WDT
  1032. tristate "Intel 6300ESB Timer/Watchdog"
  1033. depends on PCI
  1034. select WATCHDOG_CORE
  1035. help
  1036. Hardware driver for the watchdog timer built into the Intel
  1037. 6300ESB controller hub.
  1038. To compile this driver as a module, choose M here: the
  1039. module will be called i6300esb.
  1040. config IE6XX_WDT
  1041. tristate "Intel Atom E6xx Watchdog"
  1042. depends on X86 && PCI
  1043. select WATCHDOG_CORE
  1044. select MFD_CORE
  1045. select LPC_SCH
  1046. help
  1047. Hardware driver for the watchdog timer built into the Intel
  1048. Atom E6XX (TunnelCreek) processor.
  1049. To compile this driver as a module, choose M here: the
  1050. module will be called ie6xx_wdt.
  1051. config INTEL_MID_WATCHDOG
  1052. tristate "Intel MID Watchdog Timer"
  1053. depends on X86_INTEL_MID
  1054. select WATCHDOG_CORE
  1055. help
  1056. Watchdog timer driver built into the Intel SCU for Intel MID
  1057. Platforms.
  1058. This driver currently supports only the watchdog evolution
  1059. implementation in SCU, available for Merrifield generation.
  1060. To compile this driver as a module, choose M here.
  1061. config ITCO_WDT
  1062. tristate "Intel TCO Timer/Watchdog"
  1063. depends on (X86 || IA64) && PCI
  1064. select WATCHDOG_CORE
  1065. depends on I2C || I2C=n
  1066. depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT
  1067. select LPC_ICH if !EXPERT
  1068. select I2C_I801 if !EXPERT && I2C
  1069. help
  1070. Hardware driver for the intel TCO timer based watchdog devices.
  1071. These drivers are included in the Intel 82801 I/O Controller
  1072. Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB
  1073. controller hub.
  1074. The TCO (Total Cost of Ownership) timer is a watchdog timer
  1075. that will reboot the machine after its second expiration. The
  1076. expiration time can be configured with the "heartbeat" parameter.
  1077. On some motherboards the driver may fail to reset the chipset's
  1078. NO_REBOOT flag which prevents the watchdog from rebooting the
  1079. machine. If this is the case you will get a kernel message like
  1080. "failed to reset NO_REBOOT flag, reboot disabled by hardware".
  1081. To compile this driver as a module, choose M here: the
  1082. module will be called iTCO_wdt.
  1083. config ITCO_VENDOR_SUPPORT
  1084. bool "Intel TCO Timer/Watchdog Specific Vendor Support"
  1085. depends on ITCO_WDT
  1086. help
  1087. Add vendor specific support to the intel TCO timer based watchdog
  1088. devices. At this moment we only have additional support for some
  1089. SuperMicro Inc. motherboards.
  1090. config IT8712F_WDT
  1091. tristate "IT8712F (Smart Guardian) Watchdog Timer"
  1092. depends on X86
  1093. help
  1094. This is the driver for the built-in watchdog timer on the IT8712F
  1095. Super I/0 chipset used on many motherboards.
  1096. If the driver does not work, then make sure that the game port in
  1097. the BIOS is enabled.
  1098. To compile this driver as a module, choose M here: the
  1099. module will be called it8712f_wdt.
  1100. config IT87_WDT
  1101. tristate "IT87 Watchdog Timer"
  1102. depends on X86
  1103. select WATCHDOG_CORE
  1104. help
  1105. This is the driver for the hardware watchdog on the ITE IT8607,
  1106. IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702,
  1107. IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and
  1108. IT8783 Super I/O chips.
  1109. This watchdog simply watches your kernel to make sure it doesn't
  1110. freeze, and if it does, it reboots your computer after a certain
  1111. amount of time.
  1112. To compile this driver as a module, choose M here: the module will
  1113. be called it87_wdt.
  1114. config HP_WATCHDOG
  1115. tristate "HP ProLiant iLO2+ Hardware Watchdog Timer"
  1116. select WATCHDOG_CORE
  1117. depends on (ARM64 || X86) && PCI
  1118. help
  1119. A software monitoring watchdog and NMI handling driver. This driver
  1120. will detect lockups and provide a stack trace. This is a driver that
  1121. will only load on an HP ProLiant system with a minimum of iLO2 support.
  1122. To compile this driver as a module, choose M here: the module will be
  1123. called hpwdt.
  1124. config HPWDT_NMI_DECODING
  1125. bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer"
  1126. depends on X86 && HP_WATCHDOG
  1127. default y
  1128. help
  1129. Enables the NMI handler for the watchdog pretimeout NMI and the iLO
  1130. "Generate NMI to System" virtual button. When an NMI is claimed
  1131. by the driver, panic is called.
  1132. config KEMPLD_WDT
  1133. tristate "Kontron COM Watchdog Timer"
  1134. depends on MFD_KEMPLD
  1135. select WATCHDOG_CORE
  1136. help
  1137. Support for the PLD watchdog on some Kontron ETX and COMexpress
  1138. (ETXexpress) modules
  1139. This driver can also be built as a module. If so, the module will be
  1140. called kempld_wdt.
  1141. config SC1200_WDT
  1142. tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog"
  1143. depends on X86
  1144. help
  1145. This is a driver for National Semiconductor PC87307/PC97307 hardware
  1146. watchdog cards as found on the SC1200. This watchdog is mainly used
  1147. for power management purposes and can be used to power down the device
  1148. during inactivity periods (includes interrupt activity monitoring).
  1149. To compile this driver as a module, choose M here: the
  1150. module will be called sc1200wdt.
  1151. Most people will say N.
  1152. config SCx200_WDT
  1153. tristate "National Semiconductor SCx200 Watchdog"
  1154. depends on SCx200 && PCI
  1155. help
  1156. Enable the built-in watchdog timer support on the National
  1157. Semiconductor SCx200 processors.
  1158. If compiled as a module, it will be called scx200_wdt.
  1159. config PC87413_WDT
  1160. tristate "NS PC87413 watchdog"
  1161. depends on X86
  1162. help
  1163. This is the driver for the hardware watchdog on the PC87413 chipset
  1164. This watchdog simply watches your kernel to make sure it doesn't
  1165. freeze, and if it does, it reboots your computer after a certain
  1166. amount of time.
  1167. To compile this driver as a module, choose M here: the
  1168. module will be called pc87413_wdt.
  1169. Most people will say N.
  1170. config NV_TCO
  1171. tristate "nVidia TCO Timer/Watchdog"
  1172. depends on X86 && PCI
  1173. help
  1174. Hardware driver for the TCO timer built into the nVidia Hub family
  1175. (such as the MCP51). The TCO (Total Cost of Ownership) timer is a
  1176. watchdog timer that will reboot the machine after its second
  1177. expiration. The expiration time can be configured with the
  1178. "heartbeat" parameter.
  1179. On some motherboards the driver may fail to reset the chipset's
  1180. NO_REBOOT flag which prevents the watchdog from rebooting the
  1181. machine. If this is the case you will get a kernel message like
  1182. "failed to reset NO_REBOOT flag, reboot disabled by hardware".
  1183. To compile this driver as a module, choose M here: the
  1184. module will be called nv_tco.
  1185. config RDC321X_WDT
  1186. tristate "RDC R-321x SoC watchdog"
  1187. depends on X86_RDC321X || COMPILE_TEST
  1188. depends on PCI
  1189. help
  1190. This is the driver for the built in hardware watchdog
  1191. in the RDC R-321x SoC.
  1192. To compile this driver as a module, choose M here: the
  1193. module will be called rdc321x_wdt.
  1194. config 60XX_WDT
  1195. tristate "SBC-60XX Watchdog Timer"
  1196. depends on X86
  1197. help
  1198. This driver can be used with the watchdog timer found on some
  1199. single board computers, namely the 6010 PII based computer.
  1200. It may well work with other cards. It reads port 0x443 to enable
  1201. and re-set the watchdog timer, and reads port 0x45 to disable
  1202. the watchdog. If you have a card that behave in similar ways,
  1203. you can probably make this driver work with your card as well.
  1204. You can compile this driver directly into the kernel, or use
  1205. it as a module. The module will be called sbc60xxwdt.
  1206. config SBC8360_WDT
  1207. tristate "SBC8360 Watchdog Timer"
  1208. depends on X86_32
  1209. help
  1210. This is the driver for the hardware watchdog on the SBC8360 Single
  1211. Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com).
  1212. To compile this driver as a module, choose M here: the
  1213. module will be called sbc8360.
  1214. Most people will say N.
  1215. config SBC7240_WDT
  1216. tristate "SBC Nano 7240 Watchdog Timer"
  1217. depends on X86_32 && !UML
  1218. help
  1219. This is the driver for the hardware watchdog found on the IEI
  1220. single board computers EPIC Nano 7240 (and likely others). This
  1221. watchdog simply watches your kernel to make sure it doesn't freeze,
  1222. and if it does, it reboots your computer after a certain amount of
  1223. time.
  1224. To compile this driver as a module, choose M here: the
  1225. module will be called sbc7240_wdt.
  1226. config CPU5_WDT
  1227. tristate "SMA CPU5 Watchdog"
  1228. depends on X86
  1229. help
  1230. TBD.
  1231. To compile this driver as a module, choose M here: the
  1232. module will be called cpu5wdt.
  1233. config SMSC_SCH311X_WDT
  1234. tristate "SMSC SCH311X Watchdog Timer"
  1235. depends on X86
  1236. help
  1237. This is the driver for the hardware watchdog timer on the
  1238. SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset
  1239. (LPC IO with 8042 KBC, Reset Generation, HWM and multiple
  1240. serial ports).
  1241. To compile this driver as a module, choose M here: the
  1242. module will be called sch311x_wdt.
  1243. config SMSC37B787_WDT
  1244. tristate "Winbond SMsC37B787 Watchdog Timer"
  1245. depends on X86
  1246. help
  1247. This is the driver for the hardware watchdog component on the
  1248. Winbond SMsC37B787 chipset as used on the NetRunner Mainboard
  1249. from Vision Systems and maybe others.
  1250. This watchdog simply watches your kernel to make sure it doesn't
  1251. freeze, and if it does, it reboots your computer after a certain
  1252. amount of time.
  1253. Usually a userspace daemon will notify the kernel WDT driver that
  1254. userspace is still alive, at regular intervals.
  1255. To compile this driver as a module, choose M here: the
  1256. module will be called smsc37b787_wdt.
  1257. Most people will say N.
  1258. config TQMX86_WDT
  1259. tristate "TQ-Systems TQMX86 Watchdog Timer"
  1260. depends on X86
  1261. select WATCHDOG_CORE
  1262. help
  1263. This is the driver for the hardware watchdog timer in the TQMX86 IO
  1264. controller found on some of their ComExpress Modules.
  1265. To compile this driver as a module, choose M here; the module
  1266. will be called tqmx86_wdt.
  1267. Most people will say N.
  1268. config VIA_WDT
  1269. tristate "VIA Watchdog Timer"
  1270. depends on X86 && PCI
  1271. select WATCHDOG_CORE
  1272. help
  1273. This is the driver for the hardware watchdog timer on VIA
  1274. southbridge chipset CX700, VX800/VX820 or VX855/VX875.
  1275. To compile this driver as a module, choose M here; the module
  1276. will be called via_wdt.
  1277. Most people will say N.
  1278. config W83627HF_WDT
  1279. tristate "Watchdog timer for W83627HF/W83627DHG and compatibles"
  1280. depends on X86
  1281. select WATCHDOG_CORE
  1282. help
  1283. This is the driver for the hardware watchdog on the following
  1284. Super I/O chips.
  1285. W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG
  1286. W83637HF
  1287. W83667HG/HG-B
  1288. W83687THF
  1289. W83697HF
  1290. W83697UG
  1291. NCT6775
  1292. NCT6776
  1293. NCT6779
  1294. NCT6791
  1295. NCT6792
  1296. NCT6102D/04D/06D
  1297. NCT6116D
  1298. This watchdog simply watches your kernel to make sure it doesn't
  1299. freeze, and if it does, it reboots your computer after a certain
  1300. amount of time.
  1301. To compile this driver as a module, choose M here: the
  1302. module will be called w83627hf_wdt.
  1303. Most people will say N.
  1304. config W83877F_WDT
  1305. tristate "W83877F (EMACS) Watchdog Timer"
  1306. depends on X86
  1307. help
  1308. This is the driver for the hardware watchdog on the W83877F chipset
  1309. as used in EMACS PC-104 motherboards (and likely others). This
  1310. watchdog simply watches your kernel to make sure it doesn't freeze,
  1311. and if it does, it reboots your computer after a certain amount of
  1312. time.
  1313. To compile this driver as a module, choose M here: the
  1314. module will be called w83877f_wdt.
  1315. Most people will say N.
  1316. config W83977F_WDT
  1317. tristate "W83977F (PCM-5335) Watchdog Timer"
  1318. depends on X86
  1319. help
  1320. This is the driver for the hardware watchdog on the W83977F I/O chip
  1321. as used in AAEON's PCM-5335 SBC (and likely others). This
  1322. watchdog simply watches your kernel to make sure it doesn't freeze,
  1323. and if it does, it reboots your computer after a certain amount of
  1324. time.
  1325. To compile this driver as a module, choose M here: the
  1326. module will be called w83977f_wdt.
  1327. config MACHZ_WDT
  1328. tristate "ZF MachZ Watchdog"
  1329. depends on X86
  1330. help
  1331. If you are using a ZF Micro MachZ processor, say Y here, otherwise
  1332. N. This is the driver for the watchdog timer built-in on that
  1333. processor using ZF-Logic interface. This watchdog simply watches
  1334. your kernel to make sure it doesn't freeze, and if it does, it
  1335. reboots your computer after a certain amount of time.
  1336. To compile this driver as a module, choose M here: the
  1337. module will be called machzwd.
  1338. config SBC_EPX_C3_WATCHDOG
  1339. tristate "Winsystems SBC EPX-C3 watchdog"
  1340. depends on X86
  1341. help
  1342. This is the driver for the built-in watchdog timer on the EPX-C3
  1343. Single-board computer made by Winsystems, Inc.
  1344. *Note*: This hardware watchdog is not probeable and thus there
  1345. is no way to know if writing to its IO address will corrupt
  1346. your system or have any real effect. The only way to be sure
  1347. that this driver does what you want is to make sure you
  1348. are running it on an EPX-C3 from Winsystems with the watchdog
  1349. timer at IO address 0x1ee and 0x1ef. It will write to both those
  1350. IO ports. Basically, the assumption is made that if you compile
  1351. this driver into your kernel and/or load it as a module, that you
  1352. know what you are doing and that you are in fact running on an
  1353. EPX-C3 board!
  1354. To compile this driver as a module, choose M here: the
  1355. module will be called sbc_epx_c3.
  1356. config INTEL_MEI_WDT
  1357. tristate "Intel MEI iAMT Watchdog"
  1358. depends on INTEL_MEI && X86
  1359. select WATCHDOG_CORE
  1360. help
  1361. A device driver for the Intel MEI iAMT watchdog.
  1362. The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
  1363. Whenever the OS hangs or crashes, iAMT will send an event
  1364. to any subscriber to this event. The watchdog doesn't reset the
  1365. the platform.
  1366. To compile this driver as a module, choose M here:
  1367. the module will be called mei_wdt.
  1368. config NI903X_WDT
  1369. tristate "NI 903x/913x Watchdog"
  1370. depends on X86 && ACPI
  1371. select WATCHDOG_CORE
  1372. help
  1373. This is the driver for the watchdog timer on the National Instruments
  1374. 903x/913x real-time controllers.
  1375. To compile this driver as a module, choose M here: the module will be
  1376. called ni903x_wdt.
  1377. config NIC7018_WDT
  1378. tristate "NIC7018 Watchdog"
  1379. depends on X86 && ACPI
  1380. select WATCHDOG_CORE
  1381. help
  1382. Support for National Instruments NIC7018 Watchdog.
  1383. To compile this driver as a module, choose M here: the module will be
  1384. called nic7018_wdt.
  1385. config SIEMENS_SIMATIC_IPC_WDT
  1386. tristate "Siemens Simatic IPC Watchdog"
  1387. depends on SIEMENS_SIMATIC_IPC
  1388. select WATCHDOG_CORE
  1389. select P2SB
  1390. help
  1391. This driver adds support for several watchdogs found in Industrial
  1392. PCs from Siemens.
  1393. To compile this driver as a module, choose M here: the module will be
  1394. called simatic-ipc-wdt.
  1395. # M68K Architecture
  1396. config M54xx_WATCHDOG
  1397. tristate "MCF54xx watchdog support"
  1398. depends on M548x
  1399. help
  1400. To compile this driver as a module, choose M here: the
  1401. module will be called m54xx_wdt.
  1402. # MicroBlaze Architecture
  1403. # MIPS Architecture
  1404. config ATH79_WDT
  1405. tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog"
  1406. depends on ATH79 || (ARM && COMPILE_TEST)
  1407. help
  1408. Hardware driver for the built-in watchdog timer on the Atheros
  1409. AR71XX/AR724X/AR913X SoCs.
  1410. config BCM47XX_WDT
  1411. tristate "Broadcom BCM47xx Watchdog Timer"
  1412. depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST
  1413. select WATCHDOG_CORE
  1414. help
  1415. Hardware driver for the Broadcom BCM47xx Watchdog Timer.
  1416. config RC32434_WDT
  1417. tristate "IDT RC32434 SoC Watchdog Timer"
  1418. depends on MIKROTIK_RB532
  1419. help
  1420. Hardware driver for the IDT RC32434 SoC built-in
  1421. watchdog timer.
  1422. To compile this driver as a module, choose M here: the
  1423. module will be called rc32434_wdt.
  1424. config INDYDOG
  1425. tristate "Indy/I2 Hardware Watchdog"
  1426. depends on SGI_HAS_INDYDOG
  1427. help
  1428. Hardware driver for the Indy's/I2's watchdog. This is a
  1429. watchdog timer that will reboot the machine after a 60 second
  1430. timer expired and no process has written to /dev/watchdog during
  1431. that time.
  1432. config JZ4740_WDT
  1433. tristate "Ingenic jz4740 SoC hardware watchdog"
  1434. depends on MIPS
  1435. depends on COMMON_CLK
  1436. select WATCHDOG_CORE
  1437. select MFD_SYSCON
  1438. help
  1439. Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs.
  1440. config WDT_MTX1
  1441. tristate "MTX-1 Hardware Watchdog"
  1442. depends on MIPS_MTX1 || (MIPS && COMPILE_TEST)
  1443. help
  1444. Hardware driver for the MTX-1 boards. This is a watchdog timer that
  1445. will reboot the machine after a 100 seconds timer expired.
  1446. config SIBYTE_WDOG
  1447. tristate "Sibyte SoC hardware watchdog"
  1448. depends on CPU_SB1
  1449. help
  1450. Watchdog driver for the built in watchdog hardware in Sibyte
  1451. SoC processors. There are apparently two watchdog timers
  1452. on such processors; this driver supports only the first one,
  1453. because currently Linux only supports exporting one watchdog
  1454. to userspace.
  1455. To compile this driver as a loadable module, choose M here.
  1456. The module will be called sb_wdog.
  1457. config AR7_WDT
  1458. tristate "TI AR7 Watchdog Timer"
  1459. depends on AR7 || (MIPS && 32BIT && COMPILE_TEST)
  1460. help
  1461. Hardware driver for the TI AR7 Watchdog Timer.
  1462. config TXX9_WDT
  1463. tristate "Toshiba TXx9 Watchdog Timer"
  1464. depends on CPU_TX49XX || (MIPS && COMPILE_TEST)
  1465. select WATCHDOG_CORE
  1466. help
  1467. Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs.
  1468. config OCTEON_WDT
  1469. tristate "Cavium OCTEON SOC family Watchdog Timer"
  1470. depends on CAVIUM_OCTEON_SOC
  1471. default y
  1472. select WATCHDOG_CORE
  1473. select EXPORT_UASM if OCTEON_WDT = m
  1474. help
  1475. Hardware driver for OCTEON's on chip watchdog timer.
  1476. Enables the watchdog for all cores running Linux. It
  1477. installs a NMI handler and pokes the watchdog based on an
  1478. interrupt. On first expiration of the watchdog, the
  1479. interrupt handler pokes it. The second expiration causes an
  1480. NMI that prints a message. The third expiration causes a
  1481. global soft reset.
  1482. When userspace has /dev/watchdog open, no poking is done
  1483. from the first interrupt, it is then only poked when the
  1484. device is written.
  1485. config BCM2835_WDT
  1486. tristate "Broadcom BCM2835 hardware watchdog"
  1487. depends on ARCH_BCM2835 || (OF && COMPILE_TEST)
  1488. select WATCHDOG_CORE
  1489. help
  1490. Watchdog driver for the built in watchdog hardware in Broadcom
  1491. BCM2835 SoC.
  1492. To compile this driver as a loadable module, choose M here.
  1493. The module will be called bcm2835_wdt.
  1494. config BCM_KONA_WDT
  1495. tristate "BCM Kona Watchdog"
  1496. depends on ARCH_BCM_MOBILE || COMPILE_TEST
  1497. select WATCHDOG_CORE
  1498. help
  1499. Support for the watchdog timer on the following Broadcom BCM281xx
  1500. family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and
  1501. BCM28155 variants.
  1502. Say 'Y' or 'M' here to enable the driver. The module will be called
  1503. bcm_kona_wdt.
  1504. config BCM_KONA_WDT_DEBUG
  1505. bool "DEBUGFS support for BCM Kona Watchdog"
  1506. depends on BCM_KONA_WDT
  1507. help
  1508. If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides
  1509. access to the driver's internal data structures as well as watchdog
  1510. timer hardware registres.
  1511. If in doubt, say 'N'.
  1512. config BCM7038_WDT
  1513. tristate "BCM63xx/BCM7038 Watchdog"
  1514. select WATCHDOG_CORE
  1515. depends on HAS_IOMEM
  1516. depends on ARCH_BCMBCA || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || COMPILE_TEST
  1517. help
  1518. Watchdog driver for the built-in hardware in Broadcom 7038 and
  1519. later SoCs used in set-top boxes. BCM7038 was made public
  1520. during the 2004 CES, and since then, many Broadcom chips use this
  1521. watchdog block, including some cable modem chips and DSL (63xx)
  1522. chips.
  1523. config IMGPDC_WDT
  1524. tristate "Imagination Technologies PDC Watchdog Timer"
  1525. depends on HAS_IOMEM
  1526. depends on MIPS || COMPILE_TEST
  1527. select WATCHDOG_CORE
  1528. help
  1529. Driver for Imagination Technologies PowerDown Controller
  1530. Watchdog Timer.
  1531. To compile this driver as a loadable module, choose M here.
  1532. The module will be called imgpdc_wdt.
  1533. config LANTIQ_WDT
  1534. tristate "Lantiq SoC watchdog"
  1535. depends on LANTIQ
  1536. select WATCHDOG_CORE
  1537. help
  1538. Hardware driver for the Lantiq SoC Watchdog Timer.
  1539. config LOONGSON1_WDT
  1540. tristate "Loongson1 SoC hardware watchdog"
  1541. depends on MACH_LOONGSON32
  1542. select WATCHDOG_CORE
  1543. help
  1544. Hardware driver for the Loongson1 SoC Watchdog Timer.
  1545. config RALINK_WDT
  1546. tristate "Ralink SoC watchdog"
  1547. select WATCHDOG_CORE
  1548. depends on RALINK
  1549. help
  1550. Hardware driver for the Ralink SoC Watchdog Timer.
  1551. config GXP_WATCHDOG
  1552. tristate "HPE GXP watchdog support"
  1553. depends on ARCH_HPE_GXP
  1554. select WATCHDOG_CORE
  1555. help
  1556. Say Y here to include support for the watchdog timer
  1557. in HPE GXP SoCs.
  1558. To compile this driver as a module, choose M here.
  1559. The module will be called gxp-wdt.
  1560. config MT7621_WDT
  1561. tristate "Mediatek SoC watchdog"
  1562. select WATCHDOG_CORE
  1563. depends on SOC_MT7620 || SOC_MT7621
  1564. help
  1565. Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer.
  1566. config PIC32_WDT
  1567. tristate "Microchip PIC32 hardware watchdog"
  1568. select WATCHDOG_CORE
  1569. depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
  1570. help
  1571. Watchdog driver for the built in watchdog hardware in a PIC32.
  1572. Configuration bits must be set appropriately for the watchdog to be
  1573. controlled by this driver.
  1574. To compile this driver as a loadable module, choose M here.
  1575. The module will be called pic32-wdt.
  1576. config PIC32_DMT
  1577. tristate "Microchip PIC32 Deadman Timer"
  1578. select WATCHDOG_CORE
  1579. depends on MACH_PIC32 || (MIPS && COMPILE_TEST)
  1580. help
  1581. Watchdog driver for PIC32 instruction fetch counting timer. This
  1582. specific timer is typically be used in mission critical and safety
  1583. critical applications, where any single failure of the software
  1584. functionality and sequencing must be detected.
  1585. To compile this driver as a loadable module, choose M here.
  1586. The module will be called pic32-dmt.
  1587. # PARISC Architecture
  1588. # POWERPC Architecture
  1589. config GEF_WDT
  1590. tristate "GE Watchdog Timer"
  1591. depends on GE_FPGA
  1592. help
  1593. Watchdog timer found in a number of GE single board computers.
  1594. config MPC5200_WDT
  1595. bool "MPC52xx Watchdog Timer"
  1596. depends on PPC_MPC52xx || COMPILE_TEST
  1597. help
  1598. Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog.
  1599. config 8xxx_WDT
  1600. tristate "MPC8xxx Platform Watchdog Timer"
  1601. depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x
  1602. select WATCHDOG_CORE
  1603. help
  1604. This driver is for a SoC level watchdog that exists on some
  1605. Freescale PowerPC processors. So far this driver supports:
  1606. - MPC8xx watchdogs
  1607. - MPC83xx watchdogs
  1608. - MPC86xx watchdogs
  1609. For BookE processors (MPC85xx) use the BOOKE_WDT driver instead.
  1610. config PIKA_WDT
  1611. tristate "PIKA FPGA Watchdog"
  1612. depends on WARP || (PPC64 && COMPILE_TEST)
  1613. default y
  1614. help
  1615. This enables the watchdog in the PIKA FPGA. Currently used on
  1616. the Warp platform.
  1617. config BOOKE_WDT
  1618. tristate "PowerPC Book-E Watchdog Timer"
  1619. depends on BOOKE || 4xx
  1620. select WATCHDOG_CORE
  1621. help
  1622. Watchdog driver for PowerPC Book-E chips, such as the Freescale
  1623. MPC85xx SOCs and the IBM PowerPC 440.
  1624. Please see Documentation/watchdog/watchdog-api.rst for
  1625. more information.
  1626. config BOOKE_WDT_DEFAULT_TIMEOUT
  1627. int "PowerPC Book-E Watchdog Timer Default Timeout"
  1628. depends on BOOKE_WDT
  1629. default 38 if PPC_E500
  1630. range 0 63 if PPC_E500
  1631. default 3 if !PPC_E500
  1632. range 0 3 if !PPC_E500
  1633. help
  1634. Select the default watchdog timer period to be used by the PowerPC
  1635. Book-E watchdog driver. A watchdog "event" occurs when the bit
  1636. position represented by this number transitions from zero to one.
  1637. For Freescale Book-E processors, this is a number between 0 and 63.
  1638. For other Book-E processors, this is a number between 0 and 3.
  1639. The value can be overridden by the wdt_period command-line parameter.
  1640. config MEN_A21_WDT
  1641. tristate "MEN A21 VME CPU Carrier Board Watchdog Timer"
  1642. select WATCHDOG_CORE
  1643. depends on GPIOLIB || COMPILE_TEST
  1644. help
  1645. Watchdog driver for MEN A21 VMEbus CPU Carrier Boards.
  1646. The driver can also be built as a module. If so, the module will be
  1647. called mena21_wdt.
  1648. If unsure select N here.
  1649. # PPC64 Architecture
  1650. config PSERIES_WDT
  1651. tristate "POWER Architecture Platform Watchdog Timer"
  1652. depends on PPC_PSERIES
  1653. select WATCHDOG_CORE
  1654. help
  1655. Driver for virtual watchdog timers provided by PAPR
  1656. hypervisors (e.g. PowerVM, KVM).
  1657. config WATCHDOG_RTAS
  1658. tristate "RTAS watchdog"
  1659. depends on PPC_RTAS
  1660. help
  1661. This driver adds watchdog support for the RTAS watchdog.
  1662. To compile this driver as a module, choose M here. The module
  1663. will be called wdrtas.
  1664. # S390 Architecture
  1665. config DIAG288_WATCHDOG
  1666. tristate "System z diag288 Watchdog"
  1667. depends on S390
  1668. select WATCHDOG_CORE
  1669. help
  1670. IBM s/390 and zSeries machines running under z/VM 5.1 or later
  1671. provide a virtual watchdog timer to their guest that cause a
  1672. user define Control Program command to be executed after a
  1673. timeout.
  1674. LPAR provides a very similar interface. This driver handles
  1675. both.
  1676. To compile this driver as a module, choose M here. The module
  1677. will be called diag288_wdt.
  1678. # SUPERH (sh + sh64) Architecture
  1679. config SH_WDT
  1680. tristate "SuperH Watchdog"
  1681. depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST)
  1682. select WATCHDOG_CORE
  1683. help
  1684. This driver adds watchdog support for the integrated watchdog in the
  1685. SuperH processors. If you have one of these processors and wish
  1686. to have watchdog support enabled, say Y, otherwise say N.
  1687. As a side note, saying Y here will automatically boost HZ to 1000
  1688. so that the timer has a chance to clear the overflow counter. On
  1689. slower systems (such as the SH-2 and SH-3) this will likely yield
  1690. some performance issues. As such, the WDT should be avoided here
  1691. unless it is absolutely necessary.
  1692. To compile this driver as a module, choose M here: the
  1693. module will be called shwdt.
  1694. # SPARC Architecture
  1695. # SPARC64 Architecture
  1696. config WATCHDOG_CP1XXX
  1697. tristate "CP1XXX Hardware Watchdog support"
  1698. depends on SPARC64 && PCI
  1699. help
  1700. This is the driver for the hardware watchdog timers present on
  1701. Sun Microsystems CompactPCI models CP1400 and CP1500.
  1702. To compile this driver as a module, choose M here: the
  1703. module will be called cpwatchdog.
  1704. If you do not have a CompactPCI model CP1400 or CP1500, or
  1705. another UltraSPARC-IIi-cEngine boardset with hardware watchdog,
  1706. you should say N to this option.
  1707. config WATCHDOG_RIO
  1708. tristate "RIO Hardware Watchdog support"
  1709. depends on SPARC64 && PCI
  1710. help
  1711. Say Y here to support the hardware watchdog capability on Sun RIO
  1712. machines. The watchdog timeout period is normally one minute but
  1713. can be changed with a boot-time parameter.
  1714. config WATCHDOG_SUN4V
  1715. tristate "Sun4v Watchdog support"
  1716. select WATCHDOG_CORE
  1717. depends on SPARC64
  1718. help
  1719. Say Y here to support the hypervisor watchdog capability embedded
  1720. in the SPARC sun4v architecture.
  1721. To compile this driver as a module, choose M here. The module will
  1722. be called sun4v_wdt.
  1723. # XTENSA Architecture
  1724. # Xen Architecture
  1725. config XEN_WDT
  1726. tristate "Xen Watchdog support"
  1727. depends on XEN
  1728. select WATCHDOG_CORE
  1729. help
  1730. Say Y here to support the hypervisor watchdog capability provided
  1731. by Xen 4.0 and newer. The watchdog timeout period is normally one
  1732. minute but can be changed with a boot-time parameter.
  1733. config UML_WATCHDOG
  1734. tristate "UML watchdog"
  1735. depends on UML || COMPILE_TEST
  1736. #
  1737. # ISA-based Watchdog Cards
  1738. #
  1739. comment "ISA-based Watchdog Cards"
  1740. depends on ISA
  1741. config PCWATCHDOG
  1742. tristate "Berkshire Products ISA-PC Watchdog"
  1743. depends on ISA
  1744. help
  1745. This is the driver for the Berkshire Products ISA-PC Watchdog card.
  1746. This card simply watches your kernel to make sure it doesn't freeze,
  1747. and if it does, it reboots your computer after a certain amount of
  1748. time. This driver is like the WDT501 driver but for different
  1749. hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>.
  1750. The PC watchdog cards can be ordered from <http://www.berkprod.com/>.
  1751. To compile this driver as a module, choose M here: the
  1752. module will be called pcwd.
  1753. Most people will say N.
  1754. config MIXCOMWD
  1755. tristate "Mixcom Watchdog"
  1756. depends on ISA
  1757. help
  1758. This is a driver for the Mixcom hardware watchdog cards. This
  1759. watchdog simply watches your kernel to make sure it doesn't freeze,
  1760. and if it does, it reboots your computer after a certain amount of
  1761. time.
  1762. To compile this driver as a module, choose M here: the
  1763. module will be called mixcomwd.
  1764. Most people will say N.
  1765. config WDT
  1766. tristate "WDT Watchdog timer"
  1767. depends on ISA
  1768. help
  1769. If you have a WDT500P or WDT501P watchdog board, say Y here,
  1770. otherwise N. It is not possible to probe for this board, which means
  1771. that you have to inform the kernel about the IO port and IRQ that
  1772. is needed (you can do this via the io and irq parameters)
  1773. To compile this driver as a module, choose M here: the
  1774. module will be called wdt.
  1775. #
  1776. # PCI-based Watchdog Cards
  1777. #
  1778. comment "PCI-based Watchdog Cards"
  1779. depends on PCI
  1780. config PCIPCWATCHDOG
  1781. tristate "Berkshire Products PCI-PC Watchdog"
  1782. depends on PCI
  1783. help
  1784. This is the driver for the Berkshire Products PCI-PC Watchdog card.
  1785. This card simply watches your kernel to make sure it doesn't freeze,
  1786. and if it does, it reboots your computer after a certain amount of
  1787. time. The card can also monitor the internal temperature of the PC.
  1788. More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>.
  1789. To compile this driver as a module, choose M here: the
  1790. module will be called pcwd_pci.
  1791. Most people will say N.
  1792. config WDTPCI
  1793. tristate "PCI-WDT500/501 Watchdog timer"
  1794. depends on PCI
  1795. help
  1796. If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N.
  1797. If you have a PCI-WDT501 watchdog board then you can enable the
  1798. temperature sensor by setting the type parameter to 501.
  1799. If you want to enable the Fan Tachometer on the PCI-WDT501, then you
  1800. can do this via the tachometer parameter. Only do this if you have a
  1801. fan tachometer actually set up.
  1802. To compile this driver as a module, choose M here: the
  1803. module will be called wdt_pci.
  1804. #
  1805. # USB-based Watchdog Cards
  1806. #
  1807. comment "USB-based Watchdog Cards"
  1808. depends on USB
  1809. config USBPCWATCHDOG
  1810. tristate "Berkshire Products USB-PC Watchdog"
  1811. depends on USB
  1812. help
  1813. This is the driver for the Berkshire Products USB-PC Watchdog card.
  1814. This card simply watches your kernel to make sure it doesn't freeze,
  1815. and if it does, it reboots your computer after a certain amount of
  1816. time. The card can also monitor the internal temperature of the PC.
  1817. More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>.
  1818. To compile this driver as a module, choose M here: the
  1819. module will be called pcwd_usb.
  1820. Most people will say N.
  1821. config KEEMBAY_WATCHDOG
  1822. tristate "Intel Keem Bay SoC non-secure watchdog"
  1823. depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST)
  1824. select WATCHDOG_CORE
  1825. help
  1826. This option enable support for an In-secure watchdog timer driver for
  1827. Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every
  1828. count unit. An interrupt will be triggered, when the count crosses
  1829. the threshold configured in the register.
  1830. To compile this driver as a module, choose M here: the
  1831. module will be called keembay_wdt.
  1832. endif # WATCHDOG