1# SPDX-License-Identifier: GPL-2.0-only 2 3# 4# Watchdog device configuration 5# 6 7menuconfig WATCHDOG 8 bool "Watchdog Timer Support" 9 help 10 If you say Y here (and to one of the following options) and create a 11 character special file /dev/watchdog with major number 10 and minor 12 number 130 using mknod ("man mknod"), you will get a watchdog, i.e.: 13 subsequently opening the file and then failing to write to it for 14 longer than 1 minute will result in rebooting the machine. This 15 could be useful for a networked machine that needs to come back 16 on-line as fast as possible after a lock-up. There's both a watchdog 17 implementation entirely in software (which can sometimes fail to 18 reboot the machine) and a driver for hardware watchdog boards, which 19 are more robust and can also keep track of the temperature inside 20 your computer. For details, read 21 <file:Documentation/watchdog/watchdog-api.rst> in the kernel source. 22 23 The watchdog is usually used together with the watchdog daemon 24 which is available from 25 <https://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon 26 can also monitor NFS connections and can reboot the machine when the 27 process table is full. 28 29 If unsure, say N. 30 31if WATCHDOG 32 33config WATCHDOG_CORE 34 tristate "WatchDog Timer Driver Core" 35 help 36 Say Y here if you want to use the new watchdog timer driver core. 37 This driver provides a framework for all watchdog timer drivers 38 and gives them the /dev/watchdog interface (and later also the 39 sysfs interface). 40 41config WATCHDOG_NOWAYOUT 42 bool "Disable watchdog shutdown on close" 43 help 44 The default watchdog behaviour (which you get if you say N here) is 45 to stop the timer if the process managing it closes the file 46 /dev/watchdog. It's always remotely possible that this process might 47 get killed. If you say Y here, the watchdog cannot be stopped once 48 it has been started. 49 50config WATCHDOG_HANDLE_BOOT_ENABLED 51 bool "Update boot-enabled watchdog until userspace takes over" 52 default y 53 help 54 The default watchdog behaviour (which you get if you say Y here) is 55 to ping watchdog devices that were enabled before the driver has 56 been loaded until control is taken over from userspace using the 57 /dev/watchdog file. If you say N here, the kernel will not update 58 the watchdog on its own. Thus if your userspace does not start fast 59 enough your device will reboot. 60 61config WATCHDOG_OPEN_TIMEOUT 62 int "Timeout value for opening watchdog device" 63 default 0 64 help 65 The maximum time, in seconds, for which the watchdog framework takes 66 care of pinging a hardware watchdog. A value of 0 means infinite. The 67 value set here can be overridden by the commandline parameter 68 "watchdog.open_timeout". 69 70config WATCHDOG_SYSFS 71 bool "Read different watchdog information through sysfs" 72 help 73 Say Y here if you want to enable watchdog device status read through 74 sysfs attributes. 75 76config WATCHDOG_HRTIMER_PRETIMEOUT 77 bool "Enable watchdog hrtimer-based pretimeouts" 78 help 79 Enable this if you want to use a hrtimer timer based pretimeout for 80 watchdogs that do not natively support pretimeout support. Be aware 81 that because this pretimeout functionality uses hrtimers, it may not 82 be able to fire before the actual watchdog fires in some situations. 83 84comment "Watchdog Pretimeout Governors" 85 86config WATCHDOG_PRETIMEOUT_GOV 87 bool "Enable watchdog pretimeout governors" 88 depends on WATCHDOG_CORE 89 help 90 The option allows to select watchdog pretimeout governors. 91 92config WATCHDOG_PRETIMEOUT_GOV_SEL 93 tristate 94 depends on WATCHDOG_PRETIMEOUT_GOV 95 default m 96 select WATCHDOG_PRETIMEOUT_GOV_PANIC if WATCHDOG_PRETIMEOUT_GOV_NOOP=n 97 98if WATCHDOG_PRETIMEOUT_GOV 99 100config WATCHDOG_PRETIMEOUT_GOV_NOOP 101 tristate "Noop watchdog pretimeout governor" 102 depends on WATCHDOG_CORE 103 default WATCHDOG_CORE 104 help 105 Noop watchdog pretimeout governor, only an informational 106 message is added to kernel log buffer. 107 108config WATCHDOG_PRETIMEOUT_GOV_PANIC 109 tristate "Panic watchdog pretimeout governor" 110 depends on WATCHDOG_CORE 111 default WATCHDOG_CORE 112 help 113 Panic watchdog pretimeout governor, on watchdog pretimeout 114 event put the kernel into panic. 115 116choice 117 prompt "Default Watchdog Pretimeout Governor" 118 default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC 119 help 120 This option selects a default watchdog pretimeout governor. 121 The governor takes its action, if a watchdog is capable 122 to report a pretimeout event. 123 124config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP 125 bool "noop" 126 depends on WATCHDOG_PRETIMEOUT_GOV_NOOP 127 help 128 Use noop watchdog pretimeout governor by default. If noop 129 governor is selected by a user, write a short message to 130 the kernel log buffer and don't do any system changes. 131 132config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC 133 bool "panic" 134 depends on WATCHDOG_PRETIMEOUT_GOV_PANIC 135 help 136 Use panic watchdog pretimeout governor by default, if 137 a watchdog pretimeout event happens, consider that 138 a watchdog feeder is dead and reboot is unavoidable. 139 140endchoice 141 142endif # WATCHDOG_PRETIMEOUT_GOV 143 144# 145# General Watchdog drivers 146# 147 148comment "Watchdog Device Drivers" 149 150# Architecture Independent 151 152config SOFT_WATCHDOG 153 tristate "Software watchdog" 154 select WATCHDOG_CORE 155 help 156 A software monitoring watchdog. This will fail to reboot your system 157 from some situations that the hardware watchdog will recover 158 from. Equally it's a lot cheaper to install. 159 160 To compile this driver as a module, choose M here: the 161 module will be called softdog. 162 163config SOFT_WATCHDOG_PRETIMEOUT 164 bool "Software watchdog pretimeout governor support" 165 depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV 166 help 167 Enable this if you want to use pretimeout governors with the software 168 watchdog. Be aware that governors might affect the watchdog because it 169 is purely software, e.g. the panic governor will stall it! 170 171config BD957XMUF_WATCHDOG 172 tristate "ROHM BD9576MUF and BD9573MUF PMIC Watchdog" 173 depends on MFD_ROHM_BD957XMUF 174 select WATCHDOG_CORE 175 help 176 Support for the watchdog in the ROHM BD9576 and BD9573 PMICs. 177 These PMIC ICs contain watchdog block which can be configured 178 to toggle reset line if SoC fails to ping watchdog via GPIO. 179 180 Say Y here to include support for the ROHM BD9576 or BD9573 181 watchdog. Alternatively say M to compile the driver as a module, 182 which will be called bd9576_wdt. 183 184config DA9052_WATCHDOG 185 tristate "Dialog DA9052 Watchdog" 186 depends on PMIC_DA9052 || COMPILE_TEST 187 select WATCHDOG_CORE 188 help 189 Support for the watchdog in the DA9052 PMIC. Watchdog trigger 190 cause system reset. 191 192 Say Y here to include support for the DA9052 watchdog. 193 Alternatively say M to compile the driver as a module, 194 which will be called da9052_wdt. 195 196config DA9055_WATCHDOG 197 tristate "Dialog Semiconductor DA9055 Watchdog" 198 depends on MFD_DA9055 || COMPILE_TEST 199 select WATCHDOG_CORE 200 help 201 If you say yes here you get support for watchdog on the Dialog 202 Semiconductor DA9055 PMIC. 203 204 This driver can also be built as a module. If so, the module 205 will be called da9055_wdt. 206 207config DA9063_WATCHDOG 208 tristate "Dialog DA9063 Watchdog" 209 depends on MFD_DA9063 || COMPILE_TEST 210 depends on I2C 211 select WATCHDOG_CORE 212 help 213 Support for the watchdog in the DA9063 PMIC. 214 215 This driver can be built as a module. The module name is da9063_wdt. 216 217config DA9062_WATCHDOG 218 tristate "Dialog DA9062/61 Watchdog" 219 depends on MFD_DA9062 || COMPILE_TEST 220 depends on I2C 221 select WATCHDOG_CORE 222 help 223 Support for the watchdog in the DA9062 and DA9061 PMICs. 224 225 This driver can be built as a module. The module name is da9062_wdt. 226 227config GPIO_WATCHDOG 228 tristate "Watchdog device controlled through GPIO-line" 229 depends on OF_GPIO 230 select WATCHDOG_CORE 231 help 232 If you say yes here you get support for watchdog device 233 controlled through GPIO-line. 234 235config GPIO_WATCHDOG_ARCH_INITCALL 236 bool "Register the watchdog as early as possible" 237 depends on GPIO_WATCHDOG=y 238 help 239 In some situations, the default initcall level (module_init) 240 in not early enough in the boot process to avoid the watchdog 241 to be triggered. 242 If you say yes here, the initcall level would be raised to 243 arch_initcall. 244 If in doubt, say N. 245 246config MENF21BMC_WATCHDOG 247 tristate "MEN 14F021P00 BMC Watchdog" 248 depends on MFD_MENF21BMC || COMPILE_TEST 249 depends on I2C 250 select WATCHDOG_CORE 251 help 252 Say Y here to include support for the MEN 14F021P00 BMC Watchdog. 253 254 This driver can also be built as a module. If so the module 255 will be called menf21bmc_wdt. 256 257config MENZ069_WATCHDOG 258 tristate "MEN 16Z069 Watchdog" 259 depends on MCB 260 select WATCHDOG_CORE 261 help 262 Say Y here to include support for the MEN 16Z069 Watchdog. 263 264 This driver can also be built as a module. If so the module 265 will be called menz069_wdt. 266 267config WDAT_WDT 268 tristate "ACPI Watchdog Action Table (WDAT)" 269 depends on ACPI 270 select WATCHDOG_CORE 271 select ACPI_WATCHDOG 272 help 273 This driver adds support for systems with ACPI Watchdog Action 274 Table (WDAT) table. Servers typically have this but it can be 275 found on some desktop machines as well. This driver will take 276 over the native iTCO watchdog driver found on many Intel CPUs. 277 278 To compile this driver as module, choose M here: the module will 279 be called wdat_wdt. 280 281config WM831X_WATCHDOG 282 tristate "WM831x watchdog" 283 depends on MFD_WM831X 284 select WATCHDOG_CORE 285 help 286 Support for the watchdog in the WM831x AudioPlus PMICs. When 287 the watchdog triggers the system will be reset. 288 289config WM8350_WATCHDOG 290 tristate "WM8350 watchdog" 291 depends on MFD_WM8350 292 select WATCHDOG_CORE 293 help 294 Support for the watchdog in the WM8350 AudioPlus PMIC. When 295 the watchdog triggers the system will be reset. 296 297config XILINX_WATCHDOG 298 tristate "Xilinx Watchdog timer" 299 depends on HAS_IOMEM 300 select WATCHDOG_CORE 301 help 302 Watchdog driver for the xps_timebase_wdt IP core. 303 304 To compile this driver as a module, choose M here: the 305 module will be called of_xilinx_wdt. 306 307config ZIIRAVE_WATCHDOG 308 tristate "Zodiac RAVE Watchdog Timer" 309 depends on I2C 310 select WATCHDOG_CORE 311 help 312 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog 313 Processor. 314 315 To compile this driver as a module, choose M here: the 316 module will be called ziirave_wdt. 317 318config RAVE_SP_WATCHDOG 319 tristate "RAVE SP Watchdog timer" 320 depends on RAVE_SP_CORE 321 depends on NVMEM || !NVMEM 322 select WATCHDOG_CORE 323 help 324 Support for the watchdog on RAVE SP device. 325 326config MLX_WDT 327 tristate "Mellanox Watchdog" 328 depends on MELLANOX_PLATFORM 329 select WATCHDOG_CORE 330 select REGMAP 331 help 332 This is the driver for the hardware watchdog on Mellanox systems. 333 If you are going to use it, say Y here, otherwise N. 334 This driver can be used together with the watchdog daemon. 335 It can also watch your kernel to make sure it doesn't freeze, 336 and if it does, it reboots your system after a certain amount of 337 time. 338 339 To compile this driver as a module, choose M here: the 340 module will be called mlx-wdt. 341 342config SL28CPLD_WATCHDOG 343 tristate "Kontron sl28cpld Watchdog" 344 depends on MFD_SL28CPLD || COMPILE_TEST 345 select WATCHDOG_CORE 346 help 347 Say Y here to include support for the watchdog timer 348 on the Kontron sl28 CPLD. 349 350 To compile this driver as a module, choose M here: the 351 module will be called sl28cpld_wdt. 352 353# ALPHA Architecture 354 355# ARM Architecture 356 357config ARM_SP805_WATCHDOG 358 tristate "ARM SP805 Watchdog" 359 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA 360 select WATCHDOG_CORE 361 help 362 ARM Primecell SP805 Watchdog timer. This will reboot your system when 363 the timeout is reached. 364 365config ARM_SBSA_WATCHDOG 366 tristate "ARM SBSA Generic Watchdog" 367 depends on ARM64 368 depends on ARM_ARCH_TIMER 369 select WATCHDOG_CORE 370 help 371 ARM SBSA Generic Watchdog has two stage timeouts: 372 the first signal (WS0) is for alerting the system by interrupt, 373 the second one (WS1) is a real hardware reset. 374 More details: ARM DEN0029B - Server Base System Architecture (SBSA) 375 376 This driver can operate ARM SBSA Generic Watchdog as a single stage 377 or a two stages watchdog, it depends on the module parameter "action". 378 379 Note: the maximum timeout in the two stages mode is half of that in 380 the single stage mode. 381 382 To compile this driver as module, choose M here: The module 383 will be called sbsa_gwdt. 384 385config ARMADA_37XX_WATCHDOG 386 tristate "Armada 37xx watchdog" 387 depends on ARCH_MVEBU || COMPILE_TEST 388 depends on HAS_IOMEM 389 select MFD_SYSCON 390 select WATCHDOG_CORE 391 help 392 Say Y here to include support for the watchdog timer found on 393 Marvell Armada 37xx SoCs. 394 To compile this driver as a module, choose M here: the 395 module will be called armada_37xx_wdt. 396 397config ASM9260_WATCHDOG 398 tristate "Alphascale ASM9260 watchdog" 399 depends on MACH_ASM9260 || COMPILE_TEST 400 depends on OF 401 select WATCHDOG_CORE 402 select RESET_CONTROLLER 403 help 404 Watchdog timer embedded into Alphascale asm9260 chips. This will 405 reboot your system when the timeout is reached. 406 407config AT91RM9200_WATCHDOG 408 tristate "AT91RM9200 watchdog" 409 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST 410 help 411 Watchdog timer embedded into AT91RM9200 chips. This will reboot your 412 system when the timeout is reached. 413 414config AT91SAM9X_WATCHDOG 415 tristate "AT91SAM9X / AT91CAP9 watchdog" 416 depends on ARCH_AT91 || COMPILE_TEST 417 select WATCHDOG_CORE 418 help 419 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will 420 reboot your system when the timeout is reached. 421 422config SAMA5D4_WATCHDOG 423 tristate "Atmel SAMA5D4 Watchdog Timer" 424 depends on ARCH_AT91 || COMPILE_TEST 425 select WATCHDOG_CORE 426 help 427 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips. 428 Its Watchdog Timer Mode Register can be written more than once. 429 This will reboot your system when the timeout is reached. 430 431config CADENCE_WATCHDOG 432 tristate "Cadence Watchdog Timer" 433 depends on HAS_IOMEM 434 select WATCHDOG_CORE 435 help 436 Say Y here if you want to include support for the watchdog 437 timer in the Xilinx Zynq. 438 439config 21285_WATCHDOG 440 tristate "DC21285 watchdog" 441 depends on FOOTBRIDGE 442 help 443 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y 444 here if you wish to use this. Alternatively say M to compile the 445 driver as a module, which will be called wdt285. 446 447 This driver does not work on all machines. In particular, early CATS 448 boards have hardware problems that will cause the machine to simply 449 lock up if the watchdog fires. 450 451 "If in doubt, leave it out" - say N. 452 453config 977_WATCHDOG 454 tristate "NetWinder WB83C977 watchdog" 455 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST) 456 help 457 Say Y here to include support for the WB977 watchdog included in 458 NetWinder machines. Alternatively say M to compile the driver as 459 a module, which will be called wdt977. 460 461 Not sure? It's safe to say N. 462 463config FTWDT010_WATCHDOG 464 tristate "Faraday Technology FTWDT010 watchdog" 465 depends on ARM || COMPILE_TEST 466 select WATCHDOG_CORE 467 default ARCH_GEMINI 468 help 469 Say Y here if to include support for the Faraday Technology 470 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini 471 family of devices. 472 473 To compile this driver as a module, choose M here: the 474 module will be called ftwdt010_wdt. 475 476config IXP4XX_WATCHDOG 477 tristate "IXP4xx Watchdog" 478 depends on ARCH_IXP4XX 479 select WATCHDOG_CORE 480 help 481 Say Y here if to include support for the watchdog timer 482 in the Intel IXP4xx network processors. This driver can 483 be built as a module by choosing M. The module will 484 be called ixp4xx_wdt. 485 486 Note: The internal IXP4xx watchdog does a soft CPU reset 487 which doesn't reset any peripherals. There are circumstances 488 where the watchdog will fail to reset the board correctly 489 (e.g., if the boot ROM is in an unreadable state). 490 491 Say N if you are unsure. 492 493config S3C2410_WATCHDOG 494 tristate "S3C2410 Watchdog" 495 depends on ARCH_S3C24XX || ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || \ 496 COMPILE_TEST 497 select WATCHDOG_CORE 498 select MFD_SYSCON if ARCH_EXYNOS 499 help 500 Watchdog timer block in the Samsung S3C24xx, S3C64xx, S5Pv210 and 501 Exynos SoCs. This will reboot the system when the timer expires with 502 the watchdog enabled. 503 504 The driver is limited by the speed of the system's PCLK 505 signal, so with reasonably fast systems (PCLK around 50-66MHz) 506 then watchdog intervals of over approximately 20seconds are 507 unavailable. 508 509 Choose Y/M here only if you build for such Samsung SoC. 510 The driver can be built as a module by choosing M, and will 511 be called s3c2410_wdt. 512 513config SA1100_WATCHDOG 514 tristate "SA1100/PXA2xx watchdog" 515 depends on ARCH_SA1100 || ARCH_PXA 516 help 517 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 518 reboot your system when timeout is reached. 519 520 NOTE: once enabled, this timer cannot be disabled. 521 522 To compile this driver as a module, choose M here: the 523 module will be called sa1100_wdt. 524 525config DW_WATCHDOG 526 tristate "Synopsys DesignWare watchdog" 527 depends on HAS_IOMEM 528 select WATCHDOG_CORE 529 help 530 Say Y here if to include support for the Synopsys DesignWare 531 watchdog timer found in many chips. 532 To compile this driver as a module, choose M here: the 533 module will be called dw_wdt. 534 535config EP93XX_WATCHDOG 536 tristate "EP93xx Watchdog" 537 depends on ARCH_EP93XX || COMPILE_TEST 538 select WATCHDOG_CORE 539 help 540 Say Y here if to include support for the watchdog timer 541 embedded in the Cirrus Logic EP93xx family of devices. 542 543 To compile this driver as a module, choose M here: the 544 module will be called ep93xx_wdt. 545 546config OMAP_WATCHDOG 547 tristate "OMAP Watchdog" 548 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST 549 select WATCHDOG_CORE 550 help 551 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. 552 Say 'Y' here to enable the 553 OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 554 555config PNX4008_WATCHDOG 556 tristate "LPC32XX Watchdog" 557 depends on ARCH_LPC32XX || COMPILE_TEST 558 select WATCHDOG_CORE 559 help 560 Say Y here if to include support for the watchdog timer 561 in the LPC32XX processor. 562 This driver can be built as a module by choosing M. The module 563 will be called pnx4008_wdt. 564 565 Say N if you are unsure. 566 567config DAVINCI_WATCHDOG 568 tristate "DaVinci watchdog" 569 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST 570 select WATCHDOG_CORE 571 help 572 Say Y here if to include support for the watchdog timer 573 in the DaVinci DM644x/DM646x or Keystone processors. 574 To compile this driver as a module, choose M here: the 575 module will be called davinci_wdt. 576 577 NOTE: once enabled, this timer cannot be disabled. 578 Say N if you are unsure. 579 580config K3_RTI_WATCHDOG 581 tristate "Texas Instruments K3 RTI watchdog" 582 depends on ARCH_K3 || COMPILE_TEST 583 select WATCHDOG_CORE 584 help 585 Say Y here if you want to include support for the K3 watchdog 586 timer (RTI module) available in the K3 generation of processors. 587 588config ORION_WATCHDOG 589 tristate "Orion watchdog" 590 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST 591 depends on ARM 592 select WATCHDOG_CORE 593 help 594 Say Y here if to include support for the watchdog timer 595 in the Marvell Orion5x and Kirkwood ARM SoCs. 596 To compile this driver as a module, choose M here: the 597 module will be called orion_wdt. 598 599config RN5T618_WATCHDOG 600 tristate "Ricoh RN5T618 watchdog" 601 depends on MFD_RN5T618 || COMPILE_TEST 602 select WATCHDOG_CORE 603 help 604 If you say yes here you get support for watchdog on the Ricoh 605 RN5T618 PMIC. 606 607 This driver can also be built as a module. If so, the module 608 will be called rn5t618_wdt. 609 610config SUNXI_WATCHDOG 611 tristate "Allwinner SoCs watchdog support" 612 depends on ARCH_SUNXI || COMPILE_TEST 613 select WATCHDOG_CORE 614 help 615 Say Y here to include support for the watchdog timer 616 in Allwinner SoCs. 617 To compile this driver as a module, choose M here: the 618 module will be called sunxi_wdt. 619 620config NPCM7XX_WATCHDOG 621 tristate "Nuvoton NPCM750 watchdog" 622 depends on ARCH_NPCM || COMPILE_TEST 623 default y if ARCH_NPCM7XX 624 select WATCHDOG_CORE 625 help 626 Say Y here to include Watchdog timer support for the 627 watchdog embedded into the NPCM7xx. 628 This watchdog is used to reset the system and thus cannot be 629 compiled as a module. 630 631config TWL4030_WATCHDOG 632 tristate "TWL4030 Watchdog" 633 depends on TWL4030_CORE 634 select WATCHDOG_CORE 635 help 636 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 637 watchdog timer support for TWL4030 chips. 638 639config STMP3XXX_RTC_WATCHDOG 640 tristate "Freescale STMP3XXX & i.MX23/28 watchdog" 641 depends on RTC_DRV_STMP || COMPILE_TEST 642 select WATCHDOG_CORE 643 help 644 Say Y here to include support for the watchdog timer inside 645 the RTC for the STMP37XX/378X or i.MX23/28 SoC. 646 To compile this driver as a module, choose M here: the 647 module will be called stmp3xxx_rtc_wdt. 648 649config TS4800_WATCHDOG 650 tristate "TS-4800 Watchdog" 651 depends on HAS_IOMEM && OF 652 depends on SOC_IMX51 || COMPILE_TEST 653 select WATCHDOG_CORE 654 select MFD_SYSCON 655 help 656 Technologic Systems TS-4800 has watchdog timer implemented in 657 an external FPGA. Say Y here if you want to support for the 658 watchdog timer on TS-4800 board. 659 660config TS72XX_WATCHDOG 661 tristate "TS-72XX SBC Watchdog" 662 depends on MACH_TS72XX || COMPILE_TEST 663 select WATCHDOG_CORE 664 help 665 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 666 watchdog timer implemented in a external CPLD chip. Say Y here 667 if you want to support for the watchdog timer on TS-72XX boards. 668 669 To compile this driver as a module, choose M here: the 670 module will be called ts72xx_wdt. 671 672config MAX63XX_WATCHDOG 673 tristate "Max63xx watchdog" 674 depends on HAS_IOMEM 675 select WATCHDOG_CORE 676 help 677 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 678 679config MAX77620_WATCHDOG 680 tristate "Maxim Max77620 Watchdog Timer" 681 depends on MFD_MAX77620 || MFD_MAX77714 || COMPILE_TEST 682 select WATCHDOG_CORE 683 help 684 This is the driver for the Max77620 watchdog timer. 685 Say 'Y' here to enable the watchdog timer support for 686 MAX77620 chips. To compile this driver as a module, 687 choose M here: the module will be called max77620_wdt. 688 689config IMX2_WDT 690 tristate "IMX2+ Watchdog" 691 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST 692 select REGMAP_MMIO 693 select WATCHDOG_CORE 694 help 695 This is the driver for the hardware watchdog 696 on the Freescale IMX2 and later processors. 697 If you have one of these processors and wish to have 698 watchdog support enabled, say Y, otherwise say N. 699 700 To compile this driver as a module, choose M here: the 701 module will be called imx2_wdt. 702 703config IMX_SC_WDT 704 tristate "IMX SC Watchdog" 705 depends on HAVE_ARM_SMCCC 706 depends on IMX_SCU 707 select WATCHDOG_CORE 708 help 709 This is the driver for the system controller watchdog 710 on the NXP i.MX SoCs with system controller inside, the 711 watchdog driver will call ARM SMC API and trap into 712 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware 713 will request system controller to execute the operations. 714 If you have one of these processors and wish to have 715 watchdog support enabled, say Y, otherwise say N. 716 717 To compile this driver as a module, choose M here: the 718 module will be called imx_sc_wdt. 719 720config IMX7ULP_WDT 721 tristate "IMX7ULP Watchdog" 722 depends on ARCH_MXC || COMPILE_TEST 723 select WATCHDOG_CORE 724 help 725 This is the driver for the hardware watchdog on the Freescale 726 IMX7ULP and later processors. If you have one of these 727 processors and wish to have watchdog support enabled, 728 say Y, otherwise say N. 729 730 To compile this driver as a module, choose M here: the 731 module will be called imx7ulp_wdt. 732 733config DB500_WATCHDOG 734 tristate "ST-Ericsson DB800 watchdog" 735 depends on MFD_DB8500_PRCMU 736 select WATCHDOG_CORE 737 default y 738 help 739 Say Y here to include Watchdog timer support for the watchdog 740 existing in the prcmu of ST-Ericsson DB8500 platform. 741 742 To compile this driver as a module, choose M here: the 743 module will be called db500_wdt. 744 745config RETU_WATCHDOG 746 tristate "Retu watchdog" 747 depends on MFD_RETU 748 select WATCHDOG_CORE 749 help 750 Retu watchdog driver for Nokia Internet Tablets (770, N800, 751 N810). At least on N800 the watchdog cannot be disabled, so 752 this driver is essential and you should enable it. 753 754 To compile this driver as a module, choose M here: the 755 module will be called retu_wdt. 756 757config MOXART_WDT 758 tristate "MOXART watchdog" 759 depends on ARCH_MOXART || COMPILE_TEST 760 help 761 Say Y here to include Watchdog timer support for the watchdog 762 existing on the MOXA ART SoC series platforms. 763 764 To compile this driver as a module, choose M here: the 765 module will be called moxart_wdt. 766 767config ST_LPC_WATCHDOG 768 tristate "STMicroelectronics LPC Watchdog" 769 depends on ARCH_STI || COMPILE_TEST 770 depends on OF 771 select WATCHDOG_CORE 772 help 773 Say Y here to include STMicroelectronics Low Power Controller 774 (LPC) based Watchdog timer support. 775 776 To compile this driver as a module, choose M here: the 777 module will be called st_lpc_wdt. 778 779config TEGRA_WATCHDOG 780 tristate "Tegra watchdog" 781 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM 782 select WATCHDOG_CORE 783 help 784 Say Y here to include support for the watchdog timer 785 embedded in NVIDIA Tegra SoCs. 786 787 To compile this driver as a module, choose M here: the 788 module will be called tegra_wdt. 789 790config QCOM_WDT 791 tristate "QCOM watchdog" 792 depends on HAS_IOMEM 793 depends on ARCH_QCOM || COMPILE_TEST 794 select WATCHDOG_CORE 795 help 796 Say Y here to include Watchdog timer support for the watchdog found 797 on QCOM chipsets. Currently supported targets are the MSM8960, 798 APQ8064, and IPQ8064. 799 800 To compile this driver as a module, choose M here: the 801 module will be called qcom_wdt. 802 803config MESON_GXBB_WATCHDOG 804 tristate "Amlogic Meson GXBB SoCs watchdog support" 805 depends on ARCH_MESON || COMPILE_TEST 806 select WATCHDOG_CORE 807 help 808 Say Y here to include support for the watchdog timer 809 in Amlogic Meson GXBB SoCs. 810 To compile this driver as a module, choose M here: the 811 module will be called meson_gxbb_wdt. 812 813config MESON_WATCHDOG 814 tristate "Amlogic Meson SoCs watchdog support" 815 depends on ARCH_MESON || COMPILE_TEST 816 select WATCHDOG_CORE 817 help 818 Say Y here to include support for the watchdog timer 819 in Amlogic Meson SoCs. 820 To compile this driver as a module, choose M here: the 821 module will be called meson_wdt. 822 823config MEDIATEK_WATCHDOG 824 tristate "Mediatek SoCs watchdog support" 825 depends on ARCH_MEDIATEK || COMPILE_TEST 826 default ARCH_MEDIATEK 827 select WATCHDOG_CORE 828 select RESET_CONTROLLER 829 help 830 Say Y here to include support for the watchdog timer 831 in Mediatek SoCs. 832 To compile this driver as a module, choose M here: the 833 module will be called mtk_wdt. 834 835config DIGICOLOR_WATCHDOG 836 tristate "Conexant Digicolor SoCs watchdog support" 837 depends on ARCH_DIGICOLOR || COMPILE_TEST 838 select WATCHDOG_CORE 839 help 840 Say Y here to include support for the watchdog timer 841 in Conexant Digicolor SoCs. 842 To compile this driver as a module, choose M here: the 843 module will be called digicolor_wdt. 844 845config ARM_SMC_WATCHDOG 846 tristate "ARM Secure Monitor Call based watchdog support" 847 depends on ARM || ARM64 848 depends on OF 849 depends on HAVE_ARM_SMCCC 850 select WATCHDOG_CORE 851 help 852 Say Y here to include support for a watchdog timer 853 implemented by the EL3 Secure Monitor on ARM platforms. 854 Requires firmware support. 855 To compile this driver as a module, choose M here: the 856 module will be called arm_smc_wdt. 857 858config LPC18XX_WATCHDOG 859 tristate "LPC18xx/43xx Watchdog" 860 depends on ARCH_LPC18XX || COMPILE_TEST 861 depends on HAS_IOMEM 862 select WATCHDOG_CORE 863 help 864 Say Y here if to include support for the watchdog timer 865 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx 866 processors. 867 To compile this driver as a module, choose M here: the 868 module will be called lpc18xx_wdt. 869 870config RENESAS_WDT 871 tristate "Renesas WDT Watchdog" 872 depends on ARCH_RENESAS || COMPILE_TEST 873 select WATCHDOG_CORE 874 help 875 This driver adds watchdog support for the integrated watchdogs in the 876 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT). 877 878config RENESAS_RZAWDT 879 tristate "Renesas RZ/A WDT Watchdog" 880 depends on ARCH_RENESAS || COMPILE_TEST 881 select WATCHDOG_CORE 882 help 883 This driver adds watchdog support for the integrated watchdogs in the 884 Renesas RZ/A SoCs. These watchdogs can be used to reset a system. 885 886config RENESAS_RZG2LWDT 887 tristate "Renesas RZ/G2L WDT Watchdog" 888 depends on ARCH_RENESAS || COMPILE_TEST 889 select WATCHDOG_CORE 890 help 891 This driver adds watchdog support for the integrated watchdogs in the 892 Renesas RZ/G2L SoCs. These watchdogs can be used to reset a system. 893 894config ASPEED_WATCHDOG 895 tristate "Aspeed BMC watchdog support" 896 depends on ARCH_ASPEED || COMPILE_TEST 897 select WATCHDOG_CORE 898 help 899 Say Y here to include support for the watchdog timer 900 in Aspeed BMC SoCs. 901 902 This driver is required to reboot the SoC. 903 904 To compile this driver as a module, choose M here: the 905 module will be called aspeed_wdt. 906 907config STM32_WATCHDOG 908 tristate "STM32 Independent WatchDoG (IWDG) support" 909 depends on ARCH_STM32 910 select WATCHDOG_CORE 911 default y 912 help 913 Say Y here to include support for the watchdog timer 914 in stm32 SoCs. 915 916 To compile this driver as a module, choose M here: the 917 module will be called stm32_iwdg. 918 919config STPMIC1_WATCHDOG 920 tristate "STPMIC1 PMIC watchdog support" 921 depends on MFD_STPMIC1 922 select WATCHDOG_CORE 923 help 924 Say Y here to include watchdog support embedded into STPMIC1 PMIC. 925 If the watchdog timer expires, stpmic1 will shut down all its power 926 supplies. 927 928 To compile this driver as a module, choose M here: the 929 module will be called spmic1_wdt. 930 931config UNIPHIER_WATCHDOG 932 tristate "UniPhier watchdog support" 933 depends on ARCH_UNIPHIER || COMPILE_TEST 934 depends on OF && MFD_SYSCON 935 select WATCHDOG_CORE 936 help 937 Say Y here to include support watchdog timer embedded 938 into the UniPhier system. 939 940 To compile this driver as a module, choose M here: the 941 module will be called uniphier_wdt. 942 943config RTD119X_WATCHDOG 944 bool "Realtek RTD119x/RTD129x watchdog support" 945 depends on ARCH_REALTEK || COMPILE_TEST 946 depends on OF 947 select WATCHDOG_CORE 948 default ARCH_REALTEK 949 help 950 Say Y here to include support for the watchdog timer in 951 Realtek RTD1295 SoCs. 952 953config REALTEK_OTTO_WDT 954 tristate "Realtek Otto MIPS watchdog support" 955 depends on MACH_REALTEK_RTL || COMPILE_TEST 956 depends on COMMON_CLK 957 select WATCHDOG_CORE 958 default MACH_REALTEK_RTL 959 help 960 Say Y here to include support for the watchdog timer on Realtek 961 RTL838x, RTL839x, RTL930x SoCs. This watchdog has pretimeout 962 notifications and system reset on timeout. 963 964 When built as a module this will be called realtek_otto_wdt. 965 966config SPRD_WATCHDOG 967 tristate "Spreadtrum watchdog support" 968 depends on ARCH_SPRD || COMPILE_TEST 969 select WATCHDOG_CORE 970 help 971 Say Y here to include watchdog timer supported 972 by Spreadtrum system. 973 974config PM8916_WATCHDOG 975 tristate "QCOM PM8916 pmic watchdog" 976 depends on OF && MFD_SPMI_PMIC 977 select WATCHDOG_CORE 978 help 979 Say Y here to include support watchdog timer embedded into the 980 pm8916 module. 981 982config VISCONTI_WATCHDOG 983 tristate "Toshiba Visconti series watchdog support" 984 depends on ARCH_VISCONTI || COMPILE_TEST 985 select WATCHDOG_CORE 986 help 987 Say Y here to include support for the watchdog timer in Toshiba 988 Visconti SoCs. 989 990config MSC313E_WATCHDOG 991 tristate "MStar MSC313e watchdog" 992 depends on ARCH_MSTARV7 || COMPILE_TEST 993 select WATCHDOG_CORE 994 help 995 Say Y here to include support for the Watchdog timer embedded 996 into MStar MSC313e chips. This will reboot your system when the 997 timeout is reached. 998 999 To compile this driver as a module, choose M here: the 1000 module will be called msc313e_wdt. 1001 1002config APPLE_WATCHDOG 1003 tristate "Apple SoC watchdog" 1004 depends on ARCH_APPLE || COMPILE_TEST 1005 select WATCHDOG_CORE 1006 help 1007 Say Y here to include support for the Watchdog found in Apple 1008 SoCs such as the M1. Next to the common watchdog features this 1009 driver is also required in order to reboot these SoCs. 1010 1011 To compile this driver as a module, choose M here: the 1012 module will be called apple_wdt. 1013 1014# X86 (i386 + ia64 + x86_64) Architecture 1015 1016config ACQUIRE_WDT 1017 tristate "Acquire SBC Watchdog Timer" 1018 depends on X86 1019 help 1020 This is the driver for the hardware watchdog on Single Board 1021 Computers produced by Acquire Inc (and others). This watchdog 1022 simply watches your kernel to make sure it doesn't freeze, and if 1023 it does, it reboots your computer after a certain amount of time. 1024 1025 To compile this driver as a module, choose M here: the 1026 module will be called acquirewdt. 1027 1028 Most people will say N. 1029 1030config ADVANTECH_WDT 1031 tristate "Advantech SBC Watchdog Timer" 1032 depends on X86 1033 help 1034 If you are configuring a Linux kernel for the Advantech single-board 1035 computer, say `Y' here to support its built-in watchdog timer 1036 feature. More information can be found at 1037 <https://www.advantech.com.tw/products/> 1038 1039config ALIM1535_WDT 1040 tristate "ALi M1535 PMU Watchdog Timer" 1041 depends on X86 && PCI 1042 help 1043 This is the driver for the hardware watchdog on the ALi M1535 PMU. 1044 1045 To compile this driver as a module, choose M here: the 1046 module will be called alim1535_wdt. 1047 1048 Most people will say N. 1049 1050config ALIM7101_WDT 1051 tristate "ALi M7101 PMU Computer Watchdog" 1052 depends on PCI 1053 help 1054 This is the driver for the hardware watchdog on the ALi M7101 PMU 1055 as used in the x86 Cobalt servers and also found in some 1056 SPARC Netra servers too. 1057 1058 To compile this driver as a module, choose M here: the 1059 module will be called alim7101_wdt. 1060 1061 Most people will say N. 1062 1063config EBC_C384_WDT 1064 tristate "WinSystems EBC-C384 Watchdog Timer" 1065 depends on X86 1066 select ISA_BUS_API 1067 select WATCHDOG_CORE 1068 help 1069 Enables watchdog timer support for the watchdog timer on the 1070 WinSystems EBC-C384 motherboard. The timeout may be configured via 1071 the timeout module parameter. 1072 1073config F71808E_WDT 1074 tristate "Fintek F718xx, F818xx Super I/O Watchdog" 1075 depends on X86 1076 select WATCHDOG_CORE 1077 help 1078 This is the driver for the hardware watchdog on the Fintek F71808E, 1079 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and 1080 F81866 Super I/O controllers. 1081 1082 You can compile this driver directly into the kernel, or use 1083 it as a module. The module will be called f71808e_wdt. 1084 1085config SP5100_TCO 1086 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 1087 depends on X86 && PCI 1088 select WATCHDOG_CORE 1089 help 1090 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 1091 (Total Cost of Ownership) timer is a watchdog timer that will reboot 1092 the machine after its expiration. The expiration time can be 1093 configured with the "heartbeat" parameter. 1094 1095 To compile this driver as a module, choose M here: the 1096 module will be called sp5100_tco. 1097 1098config GEODE_WDT 1099 tristate "AMD Geode CS5535/CS5536 Watchdog" 1100 depends on CS5535_MFGPT 1101 help 1102 This driver enables a watchdog capability built into the 1103 CS5535/CS5536 companion chips for the AMD Geode GX and LX 1104 processors. This watchdog watches your kernel to make sure 1105 it doesn't freeze, and if it does, it reboots your computer after 1106 a certain amount of time. 1107 1108 You can compile this driver directly into the kernel, or use 1109 it as a module. The module will be called geodewdt. 1110 1111config SC520_WDT 1112 tristate "AMD Elan SC520 processor Watchdog" 1113 depends on MELAN || COMPILE_TEST 1114 help 1115 This is the driver for the hardware watchdog built in to the 1116 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 1117 This watchdog simply watches your kernel to make sure it doesn't 1118 freeze, and if it does, it reboots your computer after a certain 1119 amount of time. 1120 1121 You can compile this driver directly into the kernel, or use 1122 it as a module. The module will be called sc520_wdt. 1123 1124config SBC_FITPC2_WATCHDOG 1125 tristate "Compulab SBC-FITPC2 watchdog" 1126 depends on X86 1127 help 1128 This is the driver for the built-in watchdog timer on the fit-PC2, 1129 fit-PC2i, CM-iAM single-board computers made by Compulab. 1130 1131 It's possible to enable the watchdog timer either from BIOS (F2) or 1132 from booted Linux. 1133 When the "Watchdog Timer Value" is enabled one can set 31-255 seconds 1134 operational range. 1135 1136 Entering BIOS setup temporarily disables watchdog operation regardless 1137 of current state, so system will not be restarted while user is in 1138 BIOS setup. 1139 1140 Once the watchdog is enabled the system will be restarted every 1141 "Watchdog Timer Value" period, so to prevent it user can restart or 1142 disable the watchdog. 1143 1144 To compile this driver as a module, choose M here: the 1145 module will be called sbc_fitpc2_wdt. 1146 1147 Most people will say N. 1148 1149config EUROTECH_WDT 1150 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 1151 depends on X86 1152 help 1153 Enable support for the watchdog timer on the Eurotech CPU-1220 and 1154 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 1155 information are at <http://www.eurotech.it/>. 1156 1157config IB700_WDT 1158 tristate "IB700 SBC Watchdog Timer" 1159 depends on X86 1160 help 1161 This is the driver for the hardware watchdog on the IB700 Single 1162 Board Computer produced by TMC Technology (www.tmc-uk.com). This 1163 watchdog simply watches your kernel to make sure it doesn't freeze, 1164 and if it does, it reboots your computer after a certain amount of time. 1165 1166 This driver is like the WDT501 driver but for slightly different 1167 hardware. 1168 1169 To compile this driver as a module, choose M here: the 1170 module will be called ib700wdt. 1171 1172 Most people will say N. 1173 1174config IBMASR 1175 tristate "IBM Automatic Server Restart" 1176 depends on X86 1177 help 1178 This is the driver for the IBM Automatic Server Restart watchdog 1179 timer built-in into some eServer xSeries machines. 1180 1181 To compile this driver as a module, choose M here: the 1182 module will be called ibmasr. 1183 1184config WAFER_WDT 1185 tristate "ICP Single Board Computer Watchdog Timer" 1186 depends on X86 1187 help 1188 This is a driver for the hardware watchdog on the ICP Single 1189 Board Computer. This driver is working on (at least) the following 1190 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 1191 1192 To compile this driver as a module, choose M here: the 1193 module will be called wafer5823wdt. 1194 1195config I6300ESB_WDT 1196 tristate "Intel 6300ESB Timer/Watchdog" 1197 depends on PCI 1198 select WATCHDOG_CORE 1199 help 1200 Hardware driver for the watchdog timer built into the Intel 1201 6300ESB controller hub. 1202 1203 To compile this driver as a module, choose M here: the 1204 module will be called i6300esb. 1205 1206config IE6XX_WDT 1207 tristate "Intel Atom E6xx Watchdog" 1208 depends on X86 && PCI 1209 select WATCHDOG_CORE 1210 select MFD_CORE 1211 select LPC_SCH 1212 help 1213 Hardware driver for the watchdog timer built into the Intel 1214 Atom E6XX (TunnelCreek) processor. 1215 1216 To compile this driver as a module, choose M here: the 1217 module will be called ie6xx_wdt. 1218 1219config INTEL_MID_WATCHDOG 1220 tristate "Intel MID Watchdog Timer" 1221 depends on X86_INTEL_MID 1222 select WATCHDOG_CORE 1223 help 1224 Watchdog timer driver built into the Intel SCU for Intel MID 1225 Platforms. 1226 1227 This driver currently supports only the watchdog evolution 1228 implementation in SCU, available for Merrifield generation. 1229 1230 To compile this driver as a module, choose M here. 1231 1232config ITCO_WDT 1233 tristate "Intel TCO Timer/Watchdog" 1234 depends on (X86 || IA64) && PCI 1235 select WATCHDOG_CORE 1236 depends on I2C || I2C=n 1237 depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT 1238 select LPC_ICH if !EXPERT 1239 select I2C_I801 if !EXPERT && I2C 1240 help 1241 Hardware driver for the intel TCO timer based watchdog devices. 1242 These drivers are included in the Intel 82801 I/O Controller 1243 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 1244 controller hub. 1245 1246 The TCO (Total Cost of Ownership) timer is a watchdog timer 1247 that will reboot the machine after its second expiration. The 1248 expiration time can be configured with the "heartbeat" parameter. 1249 1250 On some motherboards the driver may fail to reset the chipset's 1251 NO_REBOOT flag which prevents the watchdog from rebooting the 1252 machine. If this is the case you will get a kernel message like 1253 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1254 1255 To compile this driver as a module, choose M here: the 1256 module will be called iTCO_wdt. 1257 1258config ITCO_VENDOR_SUPPORT 1259 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 1260 depends on ITCO_WDT 1261 help 1262 Add vendor specific support to the intel TCO timer based watchdog 1263 devices. At this moment we only have additional support for some 1264 SuperMicro Inc. motherboards. 1265 1266config IT8712F_WDT 1267 tristate "IT8712F (Smart Guardian) Watchdog Timer" 1268 depends on X86 1269 help 1270 This is the driver for the built-in watchdog timer on the IT8712F 1271 Super I/0 chipset used on many motherboards. 1272 1273 If the driver does not work, then make sure that the game port in 1274 the BIOS is enabled. 1275 1276 To compile this driver as a module, choose M here: the 1277 module will be called it8712f_wdt. 1278 1279config IT87_WDT 1280 tristate "IT87 Watchdog Timer" 1281 depends on X86 1282 select WATCHDOG_CORE 1283 help 1284 This is the driver for the hardware watchdog on the ITE IT8607, 1285 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702, 1286 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and 1287 IT8783 Super I/O chips. 1288 1289 This watchdog simply watches your kernel to make sure it doesn't 1290 freeze, and if it does, it reboots your computer after a certain 1291 amount of time. 1292 1293 To compile this driver as a module, choose M here: the module will 1294 be called it87_wdt. 1295 1296config HP_WATCHDOG 1297 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 1298 select WATCHDOG_CORE 1299 depends on X86 && PCI 1300 help 1301 A software monitoring watchdog and NMI handling driver. This driver 1302 will detect lockups and provide a stack trace. This is a driver that 1303 will only load on an HP ProLiant system with a minimum of iLO2 support. 1304 To compile this driver as a module, choose M here: the module will be 1305 called hpwdt. 1306 1307config HPWDT_NMI_DECODING 1308 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 1309 depends on HP_WATCHDOG 1310 default y 1311 help 1312 Enables the NMI handler for the watchdog pretimeout NMI and the iLO 1313 "Generate NMI to System" virtual button. When an NMI is claimed 1314 by the driver, panic is called. 1315 1316config KEMPLD_WDT 1317 tristate "Kontron COM Watchdog Timer" 1318 depends on MFD_KEMPLD 1319 select WATCHDOG_CORE 1320 help 1321 Support for the PLD watchdog on some Kontron ETX and COMexpress 1322 (ETXexpress) modules 1323 1324 This driver can also be built as a module. If so, the module will be 1325 called kempld_wdt. 1326 1327config SC1200_WDT 1328 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 1329 depends on X86 1330 help 1331 This is a driver for National Semiconductor PC87307/PC97307 hardware 1332 watchdog cards as found on the SC1200. This watchdog is mainly used 1333 for power management purposes and can be used to power down the device 1334 during inactivity periods (includes interrupt activity monitoring). 1335 1336 To compile this driver as a module, choose M here: the 1337 module will be called sc1200wdt. 1338 1339 Most people will say N. 1340 1341config SCx200_WDT 1342 tristate "National Semiconductor SCx200 Watchdog" 1343 depends on SCx200 && PCI 1344 help 1345 Enable the built-in watchdog timer support on the National 1346 Semiconductor SCx200 processors. 1347 1348 If compiled as a module, it will be called scx200_wdt. 1349 1350config PC87413_WDT 1351 tristate "NS PC87413 watchdog" 1352 depends on X86 1353 help 1354 This is the driver for the hardware watchdog on the PC87413 chipset 1355 This watchdog simply watches your kernel to make sure it doesn't 1356 freeze, and if it does, it reboots your computer after a certain 1357 amount of time. 1358 1359 To compile this driver as a module, choose M here: the 1360 module will be called pc87413_wdt. 1361 1362 Most people will say N. 1363 1364config NV_TCO 1365 tristate "nVidia TCO Timer/Watchdog" 1366 depends on X86 && PCI 1367 help 1368 Hardware driver for the TCO timer built into the nVidia Hub family 1369 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 1370 watchdog timer that will reboot the machine after its second 1371 expiration. The expiration time can be configured with the 1372 "heartbeat" parameter. 1373 1374 On some motherboards the driver may fail to reset the chipset's 1375 NO_REBOOT flag which prevents the watchdog from rebooting the 1376 machine. If this is the case you will get a kernel message like 1377 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1378 1379 To compile this driver as a module, choose M here: the 1380 module will be called nv_tco. 1381 1382config RDC321X_WDT 1383 tristate "RDC R-321x SoC watchdog" 1384 depends on X86_RDC321X || COMPILE_TEST 1385 depends on PCI 1386 help 1387 This is the driver for the built in hardware watchdog 1388 in the RDC R-321x SoC. 1389 1390 To compile this driver as a module, choose M here: the 1391 module will be called rdc321x_wdt. 1392 1393config 60XX_WDT 1394 tristate "SBC-60XX Watchdog Timer" 1395 depends on X86 1396 help 1397 This driver can be used with the watchdog timer found on some 1398 single board computers, namely the 6010 PII based computer. 1399 It may well work with other cards. It reads port 0x443 to enable 1400 and re-set the watchdog timer, and reads port 0x45 to disable 1401 the watchdog. If you have a card that behave in similar ways, 1402 you can probably make this driver work with your card as well. 1403 1404 You can compile this driver directly into the kernel, or use 1405 it as a module. The module will be called sbc60xxwdt. 1406 1407config SBC8360_WDT 1408 tristate "SBC8360 Watchdog Timer" 1409 depends on X86_32 1410 help 1411 1412 This is the driver for the hardware watchdog on the SBC8360 Single 1413 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 1414 1415 To compile this driver as a module, choose M here: the 1416 module will be called sbc8360. 1417 1418 Most people will say N. 1419 1420config SBC7240_WDT 1421 tristate "SBC Nano 7240 Watchdog Timer" 1422 depends on X86_32 && !UML 1423 help 1424 This is the driver for the hardware watchdog found on the IEI 1425 single board computers EPIC Nano 7240 (and likely others). This 1426 watchdog simply watches your kernel to make sure it doesn't freeze, 1427 and if it does, it reboots your computer after a certain amount of 1428 time. 1429 1430 To compile this driver as a module, choose M here: the 1431 module will be called sbc7240_wdt. 1432 1433config CPU5_WDT 1434 tristate "SMA CPU5 Watchdog" 1435 depends on X86 1436 help 1437 TBD. 1438 To compile this driver as a module, choose M here: the 1439 module will be called cpu5wdt. 1440 1441config SMSC_SCH311X_WDT 1442 tristate "SMSC SCH311X Watchdog Timer" 1443 depends on X86 1444 help 1445 This is the driver for the hardware watchdog timer on the 1446 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1447 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1448 serial ports). 1449 1450 To compile this driver as a module, choose M here: the 1451 module will be called sch311x_wdt. 1452 1453config SMSC37B787_WDT 1454 tristate "Winbond SMsC37B787 Watchdog Timer" 1455 depends on X86 1456 help 1457 This is the driver for the hardware watchdog component on the 1458 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1459 from Vision Systems and maybe others. 1460 1461 This watchdog simply watches your kernel to make sure it doesn't 1462 freeze, and if it does, it reboots your computer after a certain 1463 amount of time. 1464 1465 Usually a userspace daemon will notify the kernel WDT driver that 1466 userspace is still alive, at regular intervals. 1467 1468 To compile this driver as a module, choose M here: the 1469 module will be called smsc37b787_wdt. 1470 1471 Most people will say N. 1472 1473config TQMX86_WDT 1474 tristate "TQ-Systems TQMX86 Watchdog Timer" 1475 depends on X86 1476 select WATCHDOG_CORE 1477 help 1478 This is the driver for the hardware watchdog timer in the TQMX86 IO 1479 controller found on some of their ComExpress Modules. 1480 1481 To compile this driver as a module, choose M here; the module 1482 will be called tqmx86_wdt. 1483 1484 Most people will say N. 1485 1486config VIA_WDT 1487 tristate "VIA Watchdog Timer" 1488 depends on X86 && PCI 1489 select WATCHDOG_CORE 1490 help 1491 This is the driver for the hardware watchdog timer on VIA 1492 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1493 1494 To compile this driver as a module, choose M here; the module 1495 will be called via_wdt. 1496 1497 Most people will say N. 1498 1499config W83627HF_WDT 1500 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1501 depends on X86 1502 select WATCHDOG_CORE 1503 help 1504 This is the driver for the hardware watchdog on the following 1505 Super I/O chips. 1506 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1507 W83637HF 1508 W83667HG/HG-B 1509 W83687THF 1510 W83697HF 1511 W83697UG 1512 NCT6775 1513 NCT6776 1514 NCT6779 1515 NCT6791 1516 NCT6792 1517 NCT6102D/04D/06D 1518 NCT6116D 1519 1520 This watchdog simply watches your kernel to make sure it doesn't 1521 freeze, and if it does, it reboots your computer after a certain 1522 amount of time. 1523 1524 To compile this driver as a module, choose M here: the 1525 module will be called w83627hf_wdt. 1526 1527 Most people will say N. 1528 1529config W83877F_WDT 1530 tristate "W83877F (EMACS) Watchdog Timer" 1531 depends on X86 1532 help 1533 This is the driver for the hardware watchdog on the W83877F chipset 1534 as used in EMACS PC-104 motherboards (and likely others). This 1535 watchdog simply watches your kernel to make sure it doesn't freeze, 1536 and if it does, it reboots your computer after a certain amount of 1537 time. 1538 1539 To compile this driver as a module, choose M here: the 1540 module will be called w83877f_wdt. 1541 1542 Most people will say N. 1543 1544config W83977F_WDT 1545 tristate "W83977F (PCM-5335) Watchdog Timer" 1546 depends on X86 1547 help 1548 This is the driver for the hardware watchdog on the W83977F I/O chip 1549 as used in AAEON's PCM-5335 SBC (and likely others). This 1550 watchdog simply watches your kernel to make sure it doesn't freeze, 1551 and if it does, it reboots your computer after a certain amount of 1552 time. 1553 1554 To compile this driver as a module, choose M here: the 1555 module will be called w83977f_wdt. 1556 1557config MACHZ_WDT 1558 tristate "ZF MachZ Watchdog" 1559 depends on X86 1560 help 1561 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1562 N. This is the driver for the watchdog timer built-in on that 1563 processor using ZF-Logic interface. This watchdog simply watches 1564 your kernel to make sure it doesn't freeze, and if it does, it 1565 reboots your computer after a certain amount of time. 1566 1567 To compile this driver as a module, choose M here: the 1568 module will be called machzwd. 1569 1570config SBC_EPX_C3_WATCHDOG 1571 tristate "Winsystems SBC EPX-C3 watchdog" 1572 depends on X86 1573 help 1574 This is the driver for the built-in watchdog timer on the EPX-C3 1575 Single-board computer made by Winsystems, Inc. 1576 1577 *Note*: This hardware watchdog is not probeable and thus there 1578 is no way to know if writing to its IO address will corrupt 1579 your system or have any real effect. The only way to be sure 1580 that this driver does what you want is to make sure you 1581 are running it on an EPX-C3 from Winsystems with the watchdog 1582 timer at IO address 0x1ee and 0x1ef. It will write to both those 1583 IO ports. Basically, the assumption is made that if you compile 1584 this driver into your kernel and/or load it as a module, that you 1585 know what you are doing and that you are in fact running on an 1586 EPX-C3 board! 1587 1588 To compile this driver as a module, choose M here: the 1589 module will be called sbc_epx_c3. 1590 1591config INTEL_MEI_WDT 1592 tristate "Intel MEI iAMT Watchdog" 1593 depends on INTEL_MEI && X86 1594 select WATCHDOG_CORE 1595 help 1596 A device driver for the Intel MEI iAMT watchdog. 1597 1598 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. 1599 Whenever the OS hangs or crashes, iAMT will send an event 1600 to any subscriber to this event. The watchdog doesn't reset the 1601 the platform. 1602 1603 To compile this driver as a module, choose M here: 1604 the module will be called mei_wdt. 1605 1606config NI903X_WDT 1607 tristate "NI 903x/913x Watchdog" 1608 depends on X86 && ACPI 1609 select WATCHDOG_CORE 1610 help 1611 This is the driver for the watchdog timer on the National Instruments 1612 903x/913x real-time controllers. 1613 1614 To compile this driver as a module, choose M here: the module will be 1615 called ni903x_wdt. 1616 1617config NIC7018_WDT 1618 tristate "NIC7018 Watchdog" 1619 depends on X86 && ACPI 1620 select WATCHDOG_CORE 1621 help 1622 Support for National Instruments NIC7018 Watchdog. 1623 1624 To compile this driver as a module, choose M here: the module will be 1625 called nic7018_wdt. 1626 1627config SIEMENS_SIMATIC_IPC_WDT 1628 tristate "Siemens Simatic IPC Watchdog" 1629 depends on SIEMENS_SIMATIC_IPC 1630 select WATCHDOG_CORE 1631 help 1632 This driver adds support for several watchdogs found in Industrial 1633 PCs from Siemens. 1634 1635 To compile this driver as a module, choose M here: the module will be 1636 called simatic-ipc-wdt. 1637 1638# M68K Architecture 1639 1640config M54xx_WATCHDOG 1641 tristate "MCF54xx watchdog support" 1642 depends on M548x 1643 help 1644 To compile this driver as a module, choose M here: the 1645 module will be called m54xx_wdt. 1646 1647# MicroBlaze Architecture 1648 1649# MIPS Architecture 1650 1651config ATH79_WDT 1652 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1653 depends on ATH79 || (ARM && COMPILE_TEST) 1654 help 1655 Hardware driver for the built-in watchdog timer on the Atheros 1656 AR71XX/AR724X/AR913X SoCs. 1657 1658config BCM47XX_WDT 1659 tristate "Broadcom BCM47xx Watchdog Timer" 1660 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST 1661 select WATCHDOG_CORE 1662 help 1663 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1664 1665config RC32434_WDT 1666 tristate "IDT RC32434 SoC Watchdog Timer" 1667 depends on MIKROTIK_RB532 1668 help 1669 Hardware driver for the IDT RC32434 SoC built-in 1670 watchdog timer. 1671 1672 To compile this driver as a module, choose M here: the 1673 module will be called rc32434_wdt. 1674 1675config INDYDOG 1676 tristate "Indy/I2 Hardware Watchdog" 1677 depends on SGI_HAS_INDYDOG 1678 help 1679 Hardware driver for the Indy's/I2's watchdog. This is a 1680 watchdog timer that will reboot the machine after a 60 second 1681 timer expired and no process has written to /dev/watchdog during 1682 that time. 1683 1684config JZ4740_WDT 1685 tristate "Ingenic jz4740 SoC hardware watchdog" 1686 depends on MIPS 1687 depends on COMMON_CLK 1688 select WATCHDOG_CORE 1689 select MFD_SYSCON 1690 help 1691 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1692 1693config WDT_MTX1 1694 tristate "MTX-1 Hardware Watchdog" 1695 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST) 1696 help 1697 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1698 will reboot the machine after a 100 seconds timer expired. 1699 1700config SIBYTE_WDOG 1701 tristate "Sibyte SoC hardware watchdog" 1702 depends on CPU_SB1 1703 help 1704 Watchdog driver for the built in watchdog hardware in Sibyte 1705 SoC processors. There are apparently two watchdog timers 1706 on such processors; this driver supports only the first one, 1707 because currently Linux only supports exporting one watchdog 1708 to userspace. 1709 1710 To compile this driver as a loadable module, choose M here. 1711 The module will be called sb_wdog. 1712 1713config AR7_WDT 1714 tristate "TI AR7 Watchdog Timer" 1715 depends on AR7 || (MIPS && 32BIT && COMPILE_TEST) 1716 help 1717 Hardware driver for the TI AR7 Watchdog Timer. 1718 1719config TXX9_WDT 1720 tristate "Toshiba TXx9 Watchdog Timer" 1721 depends on CPU_TX49XX || (MIPS && COMPILE_TEST) 1722 select WATCHDOG_CORE 1723 help 1724 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1725 1726config OCTEON_WDT 1727 tristate "Cavium OCTEON SOC family Watchdog Timer" 1728 depends on CAVIUM_OCTEON_SOC 1729 default y 1730 select WATCHDOG_CORE 1731 select EXPORT_UASM if OCTEON_WDT = m 1732 help 1733 Hardware driver for OCTEON's on chip watchdog timer. 1734 Enables the watchdog for all cores running Linux. It 1735 installs a NMI handler and pokes the watchdog based on an 1736 interrupt. On first expiration of the watchdog, the 1737 interrupt handler pokes it. The second expiration causes an 1738 NMI that prints a message. The third expiration causes a 1739 global soft reset. 1740 1741 When userspace has /dev/watchdog open, no poking is done 1742 from the first interrupt, it is then only poked when the 1743 device is written. 1744 1745config BCM2835_WDT 1746 tristate "Broadcom BCM2835 hardware watchdog" 1747 depends on ARCH_BCM2835 || (OF && COMPILE_TEST) 1748 select WATCHDOG_CORE 1749 help 1750 Watchdog driver for the built in watchdog hardware in Broadcom 1751 BCM2835 SoC. 1752 1753 To compile this driver as a loadable module, choose M here. 1754 The module will be called bcm2835_wdt. 1755 1756config BCM_KONA_WDT 1757 tristate "BCM Kona Watchdog" 1758 depends on ARCH_BCM_MOBILE || COMPILE_TEST 1759 select WATCHDOG_CORE 1760 help 1761 Support for the watchdog timer on the following Broadcom BCM281xx 1762 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1763 BCM28155 variants. 1764 1765 Say 'Y' or 'M' here to enable the driver. The module will be called 1766 bcm_kona_wdt. 1767 1768config BCM_KONA_WDT_DEBUG 1769 bool "DEBUGFS support for BCM Kona Watchdog" 1770 depends on BCM_KONA_WDT 1771 help 1772 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1773 access to the driver's internal data structures as well as watchdog 1774 timer hardware registres. 1775 1776 If in doubt, say 'N'. 1777 1778config BCM7038_WDT 1779 tristate "BCM63xx/BCM7038 Watchdog" 1780 select WATCHDOG_CORE 1781 depends on HAS_IOMEM 1782 depends on ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || COMPILE_TEST 1783 help 1784 Watchdog driver for the built-in hardware in Broadcom 7038 and 1785 later SoCs used in set-top boxes. BCM7038 was made public 1786 during the 2004 CES, and since then, many Broadcom chips use this 1787 watchdog block, including some cable modem chips and DSL (63xx) 1788 chips. 1789 1790config IMGPDC_WDT 1791 tristate "Imagination Technologies PDC Watchdog Timer" 1792 depends on HAS_IOMEM 1793 depends on MIPS || COMPILE_TEST 1794 select WATCHDOG_CORE 1795 help 1796 Driver for Imagination Technologies PowerDown Controller 1797 Watchdog Timer. 1798 1799 To compile this driver as a loadable module, choose M here. 1800 The module will be called imgpdc_wdt. 1801 1802config LANTIQ_WDT 1803 tristate "Lantiq SoC watchdog" 1804 depends on LANTIQ 1805 select WATCHDOG_CORE 1806 help 1807 Hardware driver for the Lantiq SoC Watchdog Timer. 1808 1809config LOONGSON1_WDT 1810 tristate "Loongson1 SoC hardware watchdog" 1811 depends on MACH_LOONGSON32 1812 select WATCHDOG_CORE 1813 help 1814 Hardware driver for the Loongson1 SoC Watchdog Timer. 1815 1816config RALINK_WDT 1817 tristate "Ralink SoC watchdog" 1818 select WATCHDOG_CORE 1819 depends on RALINK 1820 help 1821 Hardware driver for the Ralink SoC Watchdog Timer. 1822 1823config MT7621_WDT 1824 tristate "Mediatek SoC watchdog" 1825 select WATCHDOG_CORE 1826 depends on SOC_MT7620 || SOC_MT7621 1827 help 1828 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer. 1829 1830config PIC32_WDT 1831 tristate "Microchip PIC32 hardware watchdog" 1832 select WATCHDOG_CORE 1833 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1834 help 1835 Watchdog driver for the built in watchdog hardware in a PIC32. 1836 1837 Configuration bits must be set appropriately for the watchdog to be 1838 controlled by this driver. 1839 1840 To compile this driver as a loadable module, choose M here. 1841 The module will be called pic32-wdt. 1842 1843config PIC32_DMT 1844 tristate "Microchip PIC32 Deadman Timer" 1845 select WATCHDOG_CORE 1846 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1847 help 1848 Watchdog driver for PIC32 instruction fetch counting timer. This 1849 specific timer is typically be used in mission critical and safety 1850 critical applications, where any single failure of the software 1851 functionality and sequencing must be detected. 1852 1853 To compile this driver as a loadable module, choose M here. 1854 The module will be called pic32-dmt. 1855 1856# PARISC Architecture 1857 1858# POWERPC Architecture 1859 1860config GEF_WDT 1861 tristate "GE Watchdog Timer" 1862 depends on GE_FPGA 1863 help 1864 Watchdog timer found in a number of GE single board computers. 1865 1866config MPC5200_WDT 1867 bool "MPC52xx Watchdog Timer" 1868 depends on PPC_MPC52xx || COMPILE_TEST 1869 help 1870 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 1871 1872config 8xxx_WDT 1873 tristate "MPC8xxx Platform Watchdog Timer" 1874 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x 1875 select WATCHDOG_CORE 1876 help 1877 This driver is for a SoC level watchdog that exists on some 1878 Freescale PowerPC processors. So far this driver supports: 1879 - MPC8xx watchdogs 1880 - MPC83xx watchdogs 1881 - MPC86xx watchdogs 1882 1883 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 1884 1885config PIKA_WDT 1886 tristate "PIKA FPGA Watchdog" 1887 depends on WARP || (PPC64 && COMPILE_TEST) 1888 default y 1889 help 1890 This enables the watchdog in the PIKA FPGA. Currently used on 1891 the Warp platform. 1892 1893config BOOKE_WDT 1894 tristate "PowerPC Book-E Watchdog Timer" 1895 depends on BOOKE || 4xx 1896 select WATCHDOG_CORE 1897 help 1898 Watchdog driver for PowerPC Book-E chips, such as the Freescale 1899 MPC85xx SOCs and the IBM PowerPC 440. 1900 1901 Please see Documentation/watchdog/watchdog-api.rst for 1902 more information. 1903 1904config BOOKE_WDT_DEFAULT_TIMEOUT 1905 int "PowerPC Book-E Watchdog Timer Default Timeout" 1906 depends on BOOKE_WDT 1907 default 38 if PPC_FSL_BOOK3E 1908 range 0 63 if PPC_FSL_BOOK3E 1909 default 3 if !PPC_FSL_BOOK3E 1910 range 0 3 if !PPC_FSL_BOOK3E 1911 help 1912 Select the default watchdog timer period to be used by the PowerPC 1913 Book-E watchdog driver. A watchdog "event" occurs when the bit 1914 position represented by this number transitions from zero to one. 1915 1916 For Freescale Book-E processors, this is a number between 0 and 63. 1917 For other Book-E processors, this is a number between 0 and 3. 1918 1919 The value can be overridden by the wdt_period command-line parameter. 1920 1921config MEN_A21_WDT 1922 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 1923 select WATCHDOG_CORE 1924 depends on GPIOLIB || COMPILE_TEST 1925 help 1926 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 1927 1928 The driver can also be built as a module. If so, the module will be 1929 called mena21_wdt. 1930 1931 If unsure select N here. 1932 1933# PPC64 Architecture 1934 1935config WATCHDOG_RTAS 1936 tristate "RTAS watchdog" 1937 depends on PPC_RTAS 1938 help 1939 This driver adds watchdog support for the RTAS watchdog. 1940 1941 To compile this driver as a module, choose M here. The module 1942 will be called wdrtas. 1943 1944# S390 Architecture 1945 1946config DIAG288_WATCHDOG 1947 tristate "System z diag288 Watchdog" 1948 depends on S390 1949 select WATCHDOG_CORE 1950 help 1951 IBM s/390 and zSeries machines running under z/VM 5.1 or later 1952 provide a virtual watchdog timer to their guest that cause a 1953 user define Control Program command to be executed after a 1954 timeout. 1955 LPAR provides a very similar interface. This driver handles 1956 both. 1957 1958 To compile this driver as a module, choose M here. The module 1959 will be called diag288_wdt. 1960 1961# SUPERH (sh + sh64) Architecture 1962 1963config SH_WDT 1964 tristate "SuperH Watchdog" 1965 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST) 1966 select WATCHDOG_CORE 1967 help 1968 This driver adds watchdog support for the integrated watchdog in the 1969 SuperH processors. If you have one of these processors and wish 1970 to have watchdog support enabled, say Y, otherwise say N. 1971 1972 As a side note, saying Y here will automatically boost HZ to 1000 1973 so that the timer has a chance to clear the overflow counter. On 1974 slower systems (such as the SH-2 and SH-3) this will likely yield 1975 some performance issues. As such, the WDT should be avoided here 1976 unless it is absolutely necessary. 1977 1978 To compile this driver as a module, choose M here: the 1979 module will be called shwdt. 1980 1981# SPARC Architecture 1982 1983# SPARC64 Architecture 1984 1985config WATCHDOG_CP1XXX 1986 tristate "CP1XXX Hardware Watchdog support" 1987 depends on SPARC64 && PCI 1988 help 1989 This is the driver for the hardware watchdog timers present on 1990 Sun Microsystems CompactPCI models CP1400 and CP1500. 1991 1992 To compile this driver as a module, choose M here: the 1993 module will be called cpwatchdog. 1994 1995 If you do not have a CompactPCI model CP1400 or CP1500, or 1996 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 1997 you should say N to this option. 1998 1999config WATCHDOG_RIO 2000 tristate "RIO Hardware Watchdog support" 2001 depends on SPARC64 && PCI 2002 help 2003 Say Y here to support the hardware watchdog capability on Sun RIO 2004 machines. The watchdog timeout period is normally one minute but 2005 can be changed with a boot-time parameter. 2006 2007config WATCHDOG_SUN4V 2008 tristate "Sun4v Watchdog support" 2009 select WATCHDOG_CORE 2010 depends on SPARC64 2011 help 2012 Say Y here to support the hypervisor watchdog capability embedded 2013 in the SPARC sun4v architecture. 2014 2015 To compile this driver as a module, choose M here. The module will 2016 be called sun4v_wdt. 2017 2018# XTENSA Architecture 2019 2020# Xen Architecture 2021 2022config XEN_WDT 2023 tristate "Xen Watchdog support" 2024 depends on XEN 2025 select WATCHDOG_CORE 2026 help 2027 Say Y here to support the hypervisor watchdog capability provided 2028 by Xen 4.0 and newer. The watchdog timeout period is normally one 2029 minute but can be changed with a boot-time parameter. 2030 2031config UML_WATCHDOG 2032 tristate "UML watchdog" 2033 depends on UML || COMPILE_TEST 2034 2035# 2036# ISA-based Watchdog Cards 2037# 2038 2039comment "ISA-based Watchdog Cards" 2040 depends on ISA 2041 2042config PCWATCHDOG 2043 tristate "Berkshire Products ISA-PC Watchdog" 2044 depends on ISA 2045 help 2046 This is the driver for the Berkshire Products ISA-PC Watchdog card. 2047 This card simply watches your kernel to make sure it doesn't freeze, 2048 and if it does, it reboots your computer after a certain amount of 2049 time. This driver is like the WDT501 driver but for different 2050 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. 2051 The PC watchdog cards can be ordered from <http://www.berkprod.com/>. 2052 2053 To compile this driver as a module, choose M here: the 2054 module will be called pcwd. 2055 2056 Most people will say N. 2057 2058config MIXCOMWD 2059 tristate "Mixcom Watchdog" 2060 depends on ISA 2061 help 2062 This is a driver for the Mixcom hardware watchdog cards. This 2063 watchdog simply watches your kernel to make sure it doesn't freeze, 2064 and if it does, it reboots your computer after a certain amount of 2065 time. 2066 2067 To compile this driver as a module, choose M here: the 2068 module will be called mixcomwd. 2069 2070 Most people will say N. 2071 2072config WDT 2073 tristate "WDT Watchdog timer" 2074 depends on ISA 2075 help 2076 If you have a WDT500P or WDT501P watchdog board, say Y here, 2077 otherwise N. It is not possible to probe for this board, which means 2078 that you have to inform the kernel about the IO port and IRQ that 2079 is needed (you can do this via the io and irq parameters) 2080 2081 To compile this driver as a module, choose M here: the 2082 module will be called wdt. 2083 2084# 2085# PCI-based Watchdog Cards 2086# 2087 2088comment "PCI-based Watchdog Cards" 2089 depends on PCI 2090 2091config PCIPCWATCHDOG 2092 tristate "Berkshire Products PCI-PC Watchdog" 2093 depends on PCI 2094 help 2095 This is the driver for the Berkshire Products PCI-PC Watchdog card. 2096 This card simply watches your kernel to make sure it doesn't freeze, 2097 and if it does, it reboots your computer after a certain amount of 2098 time. The card can also monitor the internal temperature of the PC. 2099 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 2100 2101 To compile this driver as a module, choose M here: the 2102 module will be called pcwd_pci. 2103 2104 Most people will say N. 2105 2106config WDTPCI 2107 tristate "PCI-WDT500/501 Watchdog timer" 2108 depends on PCI 2109 help 2110 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 2111 2112 If you have a PCI-WDT501 watchdog board then you can enable the 2113 temperature sensor by setting the type parameter to 501. 2114 2115 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 2116 can do this via the tachometer parameter. Only do this if you have a 2117 fan tachometer actually set up. 2118 2119 To compile this driver as a module, choose M here: the 2120 module will be called wdt_pci. 2121 2122# 2123# USB-based Watchdog Cards 2124# 2125 2126comment "USB-based Watchdog Cards" 2127 depends on USB 2128 2129config USBPCWATCHDOG 2130 tristate "Berkshire Products USB-PC Watchdog" 2131 depends on USB 2132 help 2133 This is the driver for the Berkshire Products USB-PC Watchdog card. 2134 This card simply watches your kernel to make sure it doesn't freeze, 2135 and if it does, it reboots your computer after a certain amount of 2136 time. The card can also monitor the internal temperature of the PC. 2137 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 2138 2139 To compile this driver as a module, choose M here: the 2140 module will be called pcwd_usb. 2141 2142 Most people will say N. 2143 2144config KEEMBAY_WATCHDOG 2145 tristate "Intel Keem Bay SoC non-secure watchdog" 2146 depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST) 2147 select WATCHDOG_CORE 2148 help 2149 This option enable support for an In-secure watchdog timer driver for 2150 Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every 2151 count unit. An interrupt will be triggered, when the count crosses 2152 the threshold configured in the register. 2153 2154 To compile this driver as a module, choose M here: the 2155 module will be called keembay_wdt. 2156 2157endif # WATCHDOG 2158