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 XILINX_WINDOW_WATCHDOG 308 tristate "Xilinx window watchdog timer" 309 depends on HAS_IOMEM 310 depends on ARM64 || COMPILE_TEST 311 select WATCHDOG_CORE 312 help 313 Window watchdog driver for the versal_wwdt IP core. 314 Window watchdog timer(WWDT) contains closed(first) and 315 open(second) window with 32 bit width. Write to the watchdog 316 timer within predefined window periods of time. This means 317 a period that is not too soon and a period that is not too 318 late. The WWDT has to be restarted within the open window time. 319 If software tries to restart WWDT outside of the open window 320 time period, it generates a reset. 321 322 To compile this driver as a module, choose M here: the 323 module will be called xilinx_wwdt. 324 325config ZIIRAVE_WATCHDOG 326 tristate "Zodiac RAVE Watchdog Timer" 327 depends on I2C 328 select WATCHDOG_CORE 329 help 330 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog 331 Processor. 332 333 To compile this driver as a module, choose M here: the 334 module will be called ziirave_wdt. 335 336config RAVE_SP_WATCHDOG 337 tristate "RAVE SP Watchdog timer" 338 depends on RAVE_SP_CORE 339 depends on NVMEM || !NVMEM 340 select WATCHDOG_CORE 341 help 342 Support for the watchdog on RAVE SP device. 343 344config MLX_WDT 345 tristate "Mellanox Watchdog" 346 depends on MELLANOX_PLATFORM || COMPILE_TEST 347 select WATCHDOG_CORE 348 select REGMAP 349 help 350 This is the driver for the hardware watchdog on Mellanox systems. 351 If you are going to use it, say Y here, otherwise N. 352 This driver can be used together with the watchdog daemon. 353 It can also watch your kernel to make sure it doesn't freeze, 354 and if it does, it reboots your system after a certain amount of 355 time. 356 357 To compile this driver as a module, choose M here: the 358 module will be called mlx-wdt. 359 360config SL28CPLD_WATCHDOG 361 tristate "Kontron sl28cpld Watchdog" 362 depends on MFD_SL28CPLD || COMPILE_TEST 363 select WATCHDOG_CORE 364 help 365 Say Y here to include support for the watchdog timer 366 on the Kontron sl28 CPLD. 367 368 To compile this driver as a module, choose M here: the 369 module will be called sl28cpld_wdt. 370 371# ALPHA Architecture 372 373# ARM Architecture 374 375config ARM_SP805_WATCHDOG 376 tristate "ARM SP805 Watchdog" 377 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA 378 select WATCHDOG_CORE 379 help 380 ARM Primecell SP805 Watchdog timer. This will reboot your system when 381 the timeout is reached. 382 383config ARM_SBSA_WATCHDOG 384 tristate "ARM SBSA Generic Watchdog" 385 depends on ARM64 386 depends on ARM_ARCH_TIMER 387 select WATCHDOG_CORE 388 help 389 ARM SBSA Generic Watchdog has two stage timeouts: 390 the first signal (WS0) is for alerting the system by interrupt, 391 the second one (WS1) is a real hardware reset. 392 More details: ARM DEN0029B - Server Base System Architecture (SBSA) 393 394 This driver can operate ARM SBSA Generic Watchdog as a single stage 395 or a two stages watchdog, it depends on the module parameter "action". 396 397 Note: the maximum timeout in the two stages mode is half of that in 398 the single stage mode. 399 400 To compile this driver as module, choose M here: The module 401 will be called sbsa_gwdt. 402 403config ARMADA_37XX_WATCHDOG 404 tristate "Armada 37xx watchdog" 405 depends on ARCH_MVEBU || COMPILE_TEST 406 depends on HAS_IOMEM 407 select MFD_SYSCON 408 select WATCHDOG_CORE 409 help 410 Say Y here to include support for the watchdog timer found on 411 Marvell Armada 37xx SoCs. 412 To compile this driver as a module, choose M here: the 413 module will be called armada_37xx_wdt. 414 415config ASM9260_WATCHDOG 416 tristate "Alphascale ASM9260 watchdog" 417 depends on MACH_ASM9260 || COMPILE_TEST 418 depends on OF 419 select WATCHDOG_CORE 420 select RESET_CONTROLLER 421 help 422 Watchdog timer embedded into Alphascale asm9260 chips. This will 423 reboot your system when the timeout is reached. 424 425config AT91RM9200_WATCHDOG 426 tristate "AT91RM9200 watchdog" 427 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST 428 help 429 Watchdog timer embedded into AT91RM9200 chips. This will reboot your 430 system when the timeout is reached. 431 432config AT91SAM9X_WATCHDOG 433 tristate "AT91SAM9X / AT91CAP9 watchdog" 434 depends on ARCH_AT91 || COMPILE_TEST 435 select WATCHDOG_CORE 436 help 437 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will 438 reboot your system when the timeout is reached. 439 440config SAMA5D4_WATCHDOG 441 tristate "Atmel SAMA5D4 Watchdog Timer" 442 depends on ARCH_AT91 || COMPILE_TEST 443 select WATCHDOG_CORE 444 help 445 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips. 446 Its Watchdog Timer Mode Register can be written more than once. 447 This will reboot your system when the timeout is reached. 448 449config CADENCE_WATCHDOG 450 tristate "Cadence Watchdog Timer" 451 depends on HAS_IOMEM 452 select WATCHDOG_CORE 453 help 454 Say Y here if you want to include support for the watchdog 455 timer in the Xilinx Zynq. 456 457config 21285_WATCHDOG 458 tristate "DC21285 watchdog" 459 depends on FOOTBRIDGE 460 help 461 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y 462 here if you wish to use this. Alternatively say M to compile the 463 driver as a module, which will be called wdt285. 464 465 This driver does not work on all machines. In particular, early CATS 466 boards have hardware problems that will cause the machine to simply 467 lock up if the watchdog fires. 468 469 "If in doubt, leave it out" - say N. 470 471config 977_WATCHDOG 472 tristate "NetWinder WB83C977 watchdog" 473 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST) 474 help 475 Say Y here to include support for the WB977 watchdog included in 476 NetWinder machines. Alternatively say M to compile the driver as 477 a module, which will be called wdt977. 478 479 Not sure? It's safe to say N. 480 481config FTWDT010_WATCHDOG 482 tristate "Faraday Technology FTWDT010 watchdog" 483 depends on ARM || COMPILE_TEST 484 select WATCHDOG_CORE 485 default ARCH_GEMINI 486 help 487 Say Y here if to include support for the Faraday Technology 488 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini 489 family of devices. 490 491 To compile this driver as a module, choose M here: the 492 module will be called ftwdt010_wdt. 493 494config IXP4XX_WATCHDOG 495 tristate "IXP4xx Watchdog" 496 depends on ARCH_IXP4XX || (ARM && COMPILE_TEST) 497 select WATCHDOG_CORE 498 help 499 Say Y here if to include support for the watchdog timer 500 in the Intel IXP4xx network processors. This driver can 501 be built as a module by choosing M. The module will 502 be called ixp4xx_wdt. 503 504 Note: The internal IXP4xx watchdog does a soft CPU reset 505 which doesn't reset any peripherals. There are circumstances 506 where the watchdog will fail to reset the board correctly 507 (e.g., if the boot ROM is in an unreadable state). 508 509 Say N if you are unsure. 510 511config S3C2410_WATCHDOG 512 tristate "S3C6410/S5Pv210/Exynos Watchdog" 513 depends on ARCH_S3C64XX || ARCH_S5PV210 || ARCH_EXYNOS || COMPILE_TEST 514 select WATCHDOG_CORE 515 select MFD_SYSCON if ARCH_EXYNOS 516 help 517 Watchdog timer block in the Samsung S3C64xx, S5Pv210 and Exynos 518 SoCs. This will reboot the system when the timer expires with 519 the watchdog enabled. 520 521 The driver is limited by the speed of the system's PCLK 522 signal, so with reasonably fast systems (PCLK around 50-66MHz) 523 then watchdog intervals of over approximately 20seconds are 524 unavailable. 525 526 Choose Y/M here only if you build for such Samsung SoC. 527 The driver can be built as a module by choosing M, and will 528 be called s3c2410_wdt. 529 530config SA1100_WATCHDOG 531 tristate "SA1100/PXA2xx watchdog" 532 depends on ARCH_SA1100 || ARCH_PXA || COMPILE_TEST 533 help 534 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 535 reboot your system when timeout is reached. 536 537 NOTE: once enabled, this timer cannot be disabled. 538 539 To compile this driver as a module, choose M here: the 540 module will be called sa1100_wdt. 541 542config DW_WATCHDOG 543 tristate "Synopsys DesignWare watchdog" 544 depends on HAS_IOMEM 545 select WATCHDOG_CORE 546 help 547 Say Y here if to include support for the Synopsys DesignWare 548 watchdog timer found in many chips. 549 To compile this driver as a module, choose M here: the 550 module will be called dw_wdt. 551 552config EP93XX_WATCHDOG 553 tristate "EP93xx Watchdog" 554 depends on ARCH_EP93XX || COMPILE_TEST 555 select WATCHDOG_CORE 556 help 557 Say Y here if to include support for the watchdog timer 558 embedded in the Cirrus Logic EP93xx family of devices. 559 560 To compile this driver as a module, choose M here: the 561 module will be called ep93xx_wdt. 562 563config OMAP_WATCHDOG 564 tristate "OMAP Watchdog" 565 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST 566 select WATCHDOG_CORE 567 help 568 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. 569 Say 'Y' here to enable the 570 OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 571 572config PNX4008_WATCHDOG 573 tristate "LPC32XX Watchdog" 574 depends on ARCH_LPC32XX || COMPILE_TEST 575 select WATCHDOG_CORE 576 help 577 Say Y here if to include support for the watchdog timer 578 in the LPC32XX processor. 579 This driver can be built as a module by choosing M. The module 580 will be called pnx4008_wdt. 581 582 Say N if you are unsure. 583 584config DAVINCI_WATCHDOG 585 tristate "DaVinci watchdog" 586 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST 587 select WATCHDOG_CORE 588 help 589 Say Y here if to include support for the watchdog timer 590 in the DaVinci DM644x/DM646x or Keystone processors. 591 To compile this driver as a module, choose M here: the 592 module will be called davinci_wdt. 593 594 NOTE: once enabled, this timer cannot be disabled. 595 Say N if you are unsure. 596 597config K3_RTI_WATCHDOG 598 tristate "Texas Instruments K3 RTI watchdog" 599 depends on ARCH_K3 || COMPILE_TEST 600 select WATCHDOG_CORE 601 help 602 Say Y here if you want to include support for the K3 watchdog 603 timer (RTI module) available in the K3 generation of processors. 604 605config ORION_WATCHDOG 606 tristate "Orion watchdog" 607 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST 608 depends on ARM 609 select WATCHDOG_CORE 610 help 611 Say Y here if to include support for the watchdog timer 612 in the Marvell Orion5x and Kirkwood ARM SoCs. 613 To compile this driver as a module, choose M here: the 614 module will be called orion_wdt. 615 616config RN5T618_WATCHDOG 617 tristate "Ricoh RN5T618 watchdog" 618 depends on MFD_RN5T618 || COMPILE_TEST 619 select WATCHDOG_CORE 620 help 621 If you say yes here you get support for watchdog on the Ricoh 622 RN5T618 PMIC. 623 624 This driver can also be built as a module. If so, the module 625 will be called rn5t618_wdt. 626 627config SUNXI_WATCHDOG 628 tristate "Allwinner SoCs watchdog support" 629 depends on ARCH_SUNXI || COMPILE_TEST 630 select WATCHDOG_CORE 631 help 632 Say Y here to include support for the watchdog timer 633 in Allwinner SoCs. 634 To compile this driver as a module, choose M here: the 635 module will be called sunxi_wdt. 636 637config NPCM7XX_WATCHDOG 638 tristate "Nuvoton NPCM750 watchdog" 639 depends on ARCH_NPCM || COMPILE_TEST 640 default y if ARCH_NPCM7XX 641 select WATCHDOG_CORE 642 help 643 Say Y here to include Watchdog timer support for the 644 watchdog embedded into the NPCM7xx. 645 This watchdog is used to reset the system and thus cannot be 646 compiled as a module. 647 648config TWL4030_WATCHDOG 649 tristate "TWL4030 Watchdog" 650 depends on TWL4030_CORE 651 select WATCHDOG_CORE 652 help 653 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 654 watchdog timer support for TWL4030 chips. 655 656config STMP3XXX_RTC_WATCHDOG 657 tristate "Freescale STMP3XXX & i.MX23/28 watchdog" 658 depends on RTC_DRV_STMP || COMPILE_TEST 659 select WATCHDOG_CORE 660 help 661 Say Y here to include support for the watchdog timer inside 662 the RTC for the STMP37XX/378X or i.MX23/28 SoC. 663 To compile this driver as a module, choose M here: the 664 module will be called stmp3xxx_rtc_wdt. 665 666config TS4800_WATCHDOG 667 tristate "TS-4800 Watchdog" 668 depends on HAS_IOMEM && OF 669 depends on SOC_IMX51 || COMPILE_TEST 670 select WATCHDOG_CORE 671 select MFD_SYSCON 672 help 673 Technologic Systems TS-4800 has watchdog timer implemented in 674 an external FPGA. Say Y here if you want to support for the 675 watchdog timer on TS-4800 board. 676 677config TS72XX_WATCHDOG 678 tristate "TS-72XX SBC Watchdog" 679 depends on MACH_TS72XX || COMPILE_TEST 680 select WATCHDOG_CORE 681 help 682 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 683 watchdog timer implemented in a external CPLD chip. Say Y here 684 if you want to support for the watchdog timer on TS-72XX boards. 685 686 To compile this driver as a module, choose M here: the 687 module will be called ts72xx_wdt. 688 689config MAX63XX_WATCHDOG 690 tristate "Max63xx watchdog" 691 depends on HAS_IOMEM 692 select WATCHDOG_CORE 693 help 694 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 695 696config MAX77620_WATCHDOG 697 tristate "Maxim Max77620 Watchdog Timer" 698 depends on MFD_MAX77620 || MFD_MAX77714 || COMPILE_TEST 699 select WATCHDOG_CORE 700 help 701 This is the driver for the Max77620 watchdog timer. 702 Say 'Y' here to enable the watchdog timer support for 703 MAX77620 chips. To compile this driver as a module, 704 choose M here: the module will be called max77620_wdt. 705 706config IMX2_WDT 707 tristate "IMX2+ Watchdog" 708 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST 709 select REGMAP_MMIO 710 select WATCHDOG_CORE 711 help 712 This is the driver for the hardware watchdog 713 on the Freescale IMX2 and later processors. 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 imx2_wdt. 719 720config IMX_SC_WDT 721 tristate "IMX SC Watchdog" 722 depends on HAVE_ARM_SMCCC 723 depends on IMX_SCU || COMPILE_TEST 724 select WATCHDOG_CORE 725 help 726 This is the driver for the system controller watchdog 727 on the NXP i.MX SoCs with system controller inside, the 728 watchdog driver will call ARM SMC API and trap into 729 ARM-Trusted-Firmware for operations, ARM-Trusted-Firmware 730 will request system controller to execute the operations. 731 If you have one of these processors and wish to have 732 watchdog support enabled, say Y, otherwise say N. 733 734 To compile this driver as a module, choose M here: the 735 module will be called imx_sc_wdt. 736 737config IMX7ULP_WDT 738 tristate "IMX7ULP Watchdog" 739 depends on ARCH_MXC || COMPILE_TEST 740 select WATCHDOG_CORE 741 help 742 This is the driver for the hardware watchdog on the Freescale 743 IMX7ULP and later processors. If you have one of these 744 processors and wish to have watchdog support enabled, 745 say Y, otherwise say N. 746 747 To compile this driver as a module, choose M here: the 748 module will be called imx7ulp_wdt. 749 750config DB500_WATCHDOG 751 tristate "ST-Ericsson DB800 watchdog" 752 depends on MFD_DB8500_PRCMU 753 select WATCHDOG_CORE 754 default y 755 help 756 Say Y here to include Watchdog timer support for the watchdog 757 existing in the prcmu of ST-Ericsson DB8500 platform. 758 759 To compile this driver as a module, choose M here: the 760 module will be called db500_wdt. 761 762config RETU_WATCHDOG 763 tristate "Retu watchdog" 764 depends on MFD_RETU 765 select WATCHDOG_CORE 766 help 767 Retu watchdog driver for Nokia Internet Tablets (770, N800, 768 N810). At least on N800 the watchdog cannot be disabled, so 769 this driver is essential and you should enable it. 770 771 To compile this driver as a module, choose M here: the 772 module will be called retu_wdt. 773 774config MOXART_WDT 775 tristate "MOXART watchdog" 776 depends on ARCH_MOXART || COMPILE_TEST 777 help 778 Say Y here to include Watchdog timer support for the watchdog 779 existing on the MOXA ART SoC series platforms. 780 781 To compile this driver as a module, choose M here: the 782 module will be called moxart_wdt. 783 784config ST_LPC_WATCHDOG 785 tristate "STMicroelectronics LPC Watchdog" 786 depends on ARCH_STI || COMPILE_TEST 787 depends on OF 788 select WATCHDOG_CORE 789 help 790 Say Y here to include STMicroelectronics Low Power Controller 791 (LPC) based Watchdog timer support. 792 793 To compile this driver as a module, choose M here: the 794 module will be called st_lpc_wdt. 795 796config TEGRA_WATCHDOG 797 tristate "Tegra watchdog" 798 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM 799 select WATCHDOG_CORE 800 help 801 Say Y here to include support for the watchdog timer 802 embedded in NVIDIA Tegra SoCs. 803 804 To compile this driver as a module, choose M here: the 805 module will be called tegra_wdt. 806 807config QCOM_WDT 808 tristate "QCOM watchdog" 809 depends on HAS_IOMEM 810 depends on ARCH_QCOM || COMPILE_TEST 811 select WATCHDOG_CORE 812 help 813 Say Y here to include Watchdog timer support for the watchdog found 814 on QCOM chipsets. Currently supported targets are the MSM8960, 815 APQ8064, and IPQ8064. 816 817 To compile this driver as a module, choose M here: the 818 module will be called qcom_wdt. 819 820config MESON_GXBB_WATCHDOG 821 tristate "Amlogic Meson GXBB SoCs watchdog support" 822 depends on ARCH_MESON || COMPILE_TEST 823 select WATCHDOG_CORE 824 help 825 Say Y here to include support for the watchdog timer 826 in Amlogic Meson GXBB SoCs. 827 To compile this driver as a module, choose M here: the 828 module will be called meson_gxbb_wdt. 829 830config MESON_WATCHDOG 831 tristate "Amlogic Meson SoCs watchdog support" 832 depends on ARCH_MESON || COMPILE_TEST 833 select WATCHDOG_CORE 834 help 835 Say Y here to include support for the watchdog timer 836 in Amlogic Meson SoCs. 837 To compile this driver as a module, choose M here: the 838 module will be called meson_wdt. 839 840config MEDIATEK_WATCHDOG 841 tristate "Mediatek SoCs watchdog support" 842 depends on ARCH_MEDIATEK || COMPILE_TEST 843 default ARCH_MEDIATEK 844 select WATCHDOG_CORE 845 select RESET_CONTROLLER 846 help 847 Say Y here to include support for the watchdog timer 848 in Mediatek SoCs. 849 To compile this driver as a module, choose M here: the 850 module will be called mtk_wdt. 851 852config DIGICOLOR_WATCHDOG 853 tristate "Conexant Digicolor SoCs watchdog support" 854 depends on ARCH_DIGICOLOR || COMPILE_TEST 855 select WATCHDOG_CORE 856 help 857 Say Y here to include support for the watchdog timer 858 in Conexant Digicolor SoCs. 859 To compile this driver as a module, choose M here: the 860 module will be called digicolor_wdt. 861 862config ARM_SMC_WATCHDOG 863 tristate "ARM Secure Monitor Call based watchdog support" 864 depends on ARM || ARM64 865 depends on OF 866 depends on HAVE_ARM_SMCCC 867 select WATCHDOG_CORE 868 help 869 Say Y here to include support for a watchdog timer 870 implemented by the EL3 Secure Monitor on ARM platforms. 871 Requires firmware support. 872 To compile this driver as a module, choose M here: the 873 module will be called arm_smc_wdt. 874 875config LPC18XX_WATCHDOG 876 tristate "LPC18xx/43xx Watchdog" 877 depends on ARCH_LPC18XX || COMPILE_TEST 878 depends on HAS_IOMEM 879 select WATCHDOG_CORE 880 help 881 Say Y here if to include support for the watchdog timer 882 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx 883 processors. 884 To compile this driver as a module, choose M here: the 885 module will be called lpc18xx_wdt. 886 887config RENESAS_WDT 888 tristate "Renesas WDT Watchdog" 889 depends on ARCH_RENESAS || COMPILE_TEST 890 select WATCHDOG_CORE 891 help 892 This driver adds watchdog support for the integrated watchdogs in the 893 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT). 894 895config RENESAS_RZAWDT 896 tristate "Renesas RZ/A WDT Watchdog" 897 depends on ARCH_RENESAS || COMPILE_TEST 898 select WATCHDOG_CORE 899 help 900 This driver adds watchdog support for the integrated watchdogs in the 901 Renesas RZ/A SoCs. These watchdogs can be used to reset a system. 902 903config RENESAS_RZN1WDT 904 tristate "Renesas RZ/N1 watchdog" 905 depends on ARCH_RENESAS || COMPILE_TEST 906 select WATCHDOG_CORE 907 help 908 This driver adds watchdog support for the integrated watchdogs in the 909 Renesas RZ/N1 SoCs. These watchdogs can be used to reset a system. 910 911config RENESAS_RZG2LWDT 912 tristate "Renesas RZ/G2L WDT Watchdog" 913 depends on ARCH_RENESAS || COMPILE_TEST 914 select WATCHDOG_CORE 915 help 916 This driver adds watchdog support for the integrated watchdogs in the 917 Renesas RZ/G2L SoCs. These watchdogs can be used to reset a system. 918 919config ASPEED_WATCHDOG 920 tristate "Aspeed BMC watchdog support" 921 depends on ARCH_ASPEED || COMPILE_TEST 922 select WATCHDOG_CORE 923 help 924 Say Y here to include support for the watchdog timer 925 in Aspeed BMC SoCs. 926 927 This driver is required to reboot the SoC. 928 929 To compile this driver as a module, choose M here: the 930 module will be called aspeed_wdt. 931 932config STM32_WATCHDOG 933 tristate "STM32 Independent WatchDoG (IWDG) support" 934 depends on ARCH_STM32 || COMPILE_TEST 935 select WATCHDOG_CORE 936 default y 937 help 938 Say Y here to include support for the watchdog timer 939 in stm32 SoCs. 940 941 To compile this driver as a module, choose M here: the 942 module will be called stm32_iwdg. 943 944config STPMIC1_WATCHDOG 945 tristate "STPMIC1 PMIC watchdog support" 946 depends on MFD_STPMIC1 947 select WATCHDOG_CORE 948 help 949 Say Y here to include watchdog support embedded into STPMIC1 PMIC. 950 If the watchdog timer expires, stpmic1 will shut down all its power 951 supplies. 952 953 To compile this driver as a module, choose M here: the 954 module will be called spmic1_wdt. 955 956config UNIPHIER_WATCHDOG 957 tristate "UniPhier watchdog support" 958 depends on ARCH_UNIPHIER || COMPILE_TEST 959 depends on OF && MFD_SYSCON 960 select WATCHDOG_CORE 961 help 962 Say Y here to include support watchdog timer embedded 963 into the UniPhier system. 964 965 To compile this driver as a module, choose M here: the 966 module will be called uniphier_wdt. 967 968config RTD119X_WATCHDOG 969 bool "Realtek RTD119x/RTD129x watchdog support" 970 depends on ARCH_REALTEK || COMPILE_TEST 971 depends on OF 972 select WATCHDOG_CORE 973 default ARCH_REALTEK 974 help 975 Say Y here to include support for the watchdog timer in 976 Realtek RTD1295 SoCs. 977 978config REALTEK_OTTO_WDT 979 tristate "Realtek Otto MIPS watchdog support" 980 depends on MACH_REALTEK_RTL || COMPILE_TEST 981 depends on COMMON_CLK 982 select WATCHDOG_CORE 983 default MACH_REALTEK_RTL 984 help 985 Say Y here to include support for the watchdog timer on Realtek 986 RTL838x, RTL839x, RTL930x SoCs. This watchdog has pretimeout 987 notifications and system reset on timeout. 988 989 When built as a module this will be called realtek_otto_wdt. 990 991config SPRD_WATCHDOG 992 tristate "Spreadtrum watchdog support" 993 depends on ARCH_SPRD || COMPILE_TEST 994 select WATCHDOG_CORE 995 help 996 Say Y here to include watchdog timer supported 997 by Spreadtrum system. 998 999config PM8916_WATCHDOG 1000 tristate "QCOM PM8916 pmic watchdog" 1001 depends on OF && MFD_SPMI_PMIC 1002 select WATCHDOG_CORE 1003 help 1004 Say Y here to include support watchdog timer embedded into the 1005 pm8916 module. 1006 1007config VISCONTI_WATCHDOG 1008 tristate "Toshiba Visconti series watchdog support" 1009 depends on ARCH_VISCONTI || COMPILE_TEST 1010 select WATCHDOG_CORE 1011 help 1012 Say Y here to include support for the watchdog timer in Toshiba 1013 Visconti SoCs. 1014 1015config MSC313E_WATCHDOG 1016 tristate "MStar MSC313e watchdog" 1017 depends on ARCH_MSTARV7 || COMPILE_TEST 1018 select WATCHDOG_CORE 1019 help 1020 Say Y here to include support for the Watchdog timer embedded 1021 into MStar MSC313e chips. This will reboot your system when the 1022 timeout is reached. 1023 1024 To compile this driver as a module, choose M here: the 1025 module will be called msc313e_wdt. 1026 1027config APPLE_WATCHDOG 1028 tristate "Apple SoC watchdog" 1029 depends on ARCH_APPLE || COMPILE_TEST 1030 select WATCHDOG_CORE 1031 help 1032 Say Y here to include support for the Watchdog found in Apple 1033 SoCs such as the M1. Next to the common watchdog features this 1034 driver is also required in order to reboot these SoCs. 1035 1036 To compile this driver as a module, choose M here: the 1037 module will be called apple_wdt. 1038 1039config SUNPLUS_WATCHDOG 1040 tristate "Sunplus watchdog support" 1041 depends on ARCH_SUNPLUS || COMPILE_TEST 1042 select WATCHDOG_CORE 1043 help 1044 Say Y here to include support for the watchdog timer 1045 in Sunplus SoCs. 1046 1047 To compile this driver as a module, choose M here: the 1048 module will be called sunplus_wdt. 1049 1050# X86 (i386 + ia64 + x86_64) Architecture 1051 1052config ACQUIRE_WDT 1053 tristate "Acquire SBC Watchdog Timer" 1054 depends on X86 1055 help 1056 This is the driver for the hardware watchdog on Single Board 1057 Computers produced by Acquire Inc (and others). This watchdog 1058 simply watches your kernel to make sure it doesn't freeze, and if 1059 it does, it reboots your computer after a certain amount of time. 1060 1061 To compile this driver as a module, choose M here: the 1062 module will be called acquirewdt. 1063 1064 Most people will say N. 1065 1066config ADVANTECH_WDT 1067 tristate "Advantech SBC Watchdog Timer" 1068 depends on X86 || COMPILE_TEST 1069 help 1070 If you are configuring a Linux kernel for the Advantech single-board 1071 computer, say `Y' here to support its built-in watchdog timer 1072 feature. More information can be found at 1073 <https://www.advantech.com.tw/products/> 1074 1075config ADVANTECH_EC_WDT 1076 tristate "Advantech Embedded Controller Watchdog Timer" 1077 depends on X86 || COMPILE_TEST 1078 select ISA_BUS_API 1079 select WATCHDOG_CORE 1080 help 1081 This driver supports Advantech products with ITE based Embedded Controller. 1082 It does not support Advantech products with other ECs or without EC. 1083 1084config ALIM1535_WDT 1085 tristate "ALi M1535 PMU Watchdog Timer" 1086 depends on (X86 || COMPILE_TEST) && PCI 1087 help 1088 This is the driver for the hardware watchdog on the ALi M1535 PMU. 1089 1090 To compile this driver as a module, choose M here: the 1091 module will be called alim1535_wdt. 1092 1093 Most people will say N. 1094 1095config ALIM7101_WDT 1096 tristate "ALi M7101 PMU Computer Watchdog" 1097 depends on PCI 1098 help 1099 This is the driver for the hardware watchdog on the ALi M7101 PMU 1100 as used in the x86 Cobalt servers and also found in some 1101 SPARC Netra servers too. 1102 1103 To compile this driver as a module, choose M here: the 1104 module will be called alim7101_wdt. 1105 1106 Most people will say N. 1107 1108config EBC_C384_WDT 1109 tristate "WinSystems EBC-C384 Watchdog Timer" 1110 depends on X86 || COMPILE_TEST 1111 select ISA_BUS_API 1112 select WATCHDOG_CORE 1113 help 1114 Enables watchdog timer support for the watchdog timer on the 1115 WinSystems EBC-C384 motherboard. The timeout may be configured via 1116 the timeout module parameter. 1117 1118config EXAR_WDT 1119 tristate "Exar Watchdog Timer" 1120 depends on X86 || COMPILE_TEST 1121 select WATCHDOG_CORE 1122 help 1123 Enables watchdog timer support for the watchdog timer present 1124 in some Exar/MaxLinear UART chips like the XR28V38x. 1125 1126 To compile this driver as a module, choose M here: the 1127 module will be called exar_wdt. 1128 1129config F71808E_WDT 1130 tristate "Fintek F718xx, F818xx Super I/O Watchdog" 1131 depends on X86 || COMPILE_TEST 1132 select WATCHDOG_CORE 1133 help 1134 This is the driver for the hardware watchdog on the Fintek F71808E, 1135 F71862FG, F71868, F71869, F71882FG, F71889FG, F81803, F81865, and 1136 F81866 Super I/O controllers. 1137 1138 You can compile this driver directly into the kernel, or use 1139 it as a module. The module will be called f71808e_wdt. 1140 1141config SP5100_TCO 1142 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 1143 depends on (X86 || COMPILE_TEST) && PCI 1144 select WATCHDOG_CORE 1145 help 1146 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 1147 (Total Cost of Ownership) timer is a watchdog timer that will reboot 1148 the machine after its expiration. The expiration time can be 1149 configured with the "heartbeat" parameter. 1150 1151 To compile this driver as a module, choose M here: the 1152 module will be called sp5100_tco. 1153 1154config GEODE_WDT 1155 tristate "AMD Geode CS5535/CS5536 Watchdog" 1156 depends on CS5535_MFGPT 1157 help 1158 This driver enables a watchdog capability built into the 1159 CS5535/CS5536 companion chips for the AMD Geode GX and LX 1160 processors. This watchdog watches your kernel to make sure 1161 it doesn't freeze, and if it does, it reboots your computer after 1162 a certain amount of time. 1163 1164 You can compile this driver directly into the kernel, or use 1165 it as a module. The module will be called geodewdt. 1166 1167config SC520_WDT 1168 tristate "AMD Elan SC520 processor Watchdog" 1169 depends on MELAN || COMPILE_TEST 1170 help 1171 This is the driver for the hardware watchdog built in to the 1172 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 1173 This watchdog simply watches your kernel to make sure it doesn't 1174 freeze, and if it does, it reboots your computer after a certain 1175 amount of time. 1176 1177 You can compile this driver directly into the kernel, or use 1178 it as a module. The module will be called sc520_wdt. 1179 1180config SBC_FITPC2_WATCHDOG 1181 tristate "Compulab SBC-FITPC2 watchdog" 1182 depends on X86 || COMPILE_TEST 1183 help 1184 This is the driver for the built-in watchdog timer on the fit-PC2, 1185 fit-PC2i, CM-iAM single-board computers made by Compulab. 1186 1187 It's possible to enable the watchdog timer either from BIOS (F2) or 1188 from booted Linux. 1189 When the "Watchdog Timer Value" is enabled one can set 31-255 seconds 1190 operational range. 1191 1192 Entering BIOS setup temporarily disables watchdog operation regardless 1193 of current state, so system will not be restarted while user is in 1194 BIOS setup. 1195 1196 Once the watchdog is enabled the system will be restarted every 1197 "Watchdog Timer Value" period, so to prevent it user can restart or 1198 disable the watchdog. 1199 1200 To compile this driver as a module, choose M here: the 1201 module will be called sbc_fitpc2_wdt. 1202 1203 Most people will say N. 1204 1205config EUROTECH_WDT 1206 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 1207 depends on X86 || COMPILE_TEST 1208 help 1209 Enable support for the watchdog timer on the Eurotech CPU-1220 and 1210 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 1211 information are at <http://www.eurotech.it/>. 1212 1213config IB700_WDT 1214 tristate "IB700 SBC Watchdog Timer" 1215 depends on X86 || COMPILE_TEST 1216 help 1217 This is the driver for the hardware watchdog on the IB700 Single 1218 Board Computer produced by TMC Technology (www.tmc-uk.com). This 1219 watchdog simply watches your kernel to make sure it doesn't freeze, 1220 and if it does, it reboots your computer after a certain amount of time. 1221 1222 This driver is like the WDT501 driver but for slightly different 1223 hardware. 1224 1225 To compile this driver as a module, choose M here: the 1226 module will be called ib700wdt. 1227 1228 Most people will say N. 1229 1230config IBMASR 1231 tristate "IBM Automatic Server Restart" 1232 depends on X86 || COMPILE_TEST 1233 help 1234 This is the driver for the IBM Automatic Server Restart watchdog 1235 timer built-in into some eServer xSeries machines. 1236 1237 To compile this driver as a module, choose M here: the 1238 module will be called ibmasr. 1239 1240config WAFER_WDT 1241 tristate "ICP Single Board Computer Watchdog Timer" 1242 depends on X86 || COMPILE_TEST 1243 help 1244 This is a driver for the hardware watchdog on the ICP Single 1245 Board Computer. This driver is working on (at least) the following 1246 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 1247 1248 To compile this driver as a module, choose M here: the 1249 module will be called wafer5823wdt. 1250 1251config I6300ESB_WDT 1252 tristate "Intel 6300ESB Timer/Watchdog" 1253 depends on PCI 1254 select WATCHDOG_CORE 1255 help 1256 Hardware driver for the watchdog timer built into the Intel 1257 6300ESB controller hub. 1258 1259 To compile this driver as a module, choose M here: the 1260 module will be called i6300esb. 1261 1262config IE6XX_WDT 1263 tristate "Intel Atom E6xx Watchdog" 1264 depends on (X86 || COMPILE_TEST) && PCI 1265 select WATCHDOG_CORE 1266 select MFD_CORE 1267 select LPC_SCH 1268 help 1269 Hardware driver for the watchdog timer built into the Intel 1270 Atom E6XX (TunnelCreek) processor. 1271 1272 To compile this driver as a module, choose M here: the 1273 module will be called ie6xx_wdt. 1274 1275config INTEL_MID_WATCHDOG 1276 tristate "Intel MID Watchdog Timer" 1277 depends on X86_INTEL_MID 1278 select WATCHDOG_CORE 1279 help 1280 Watchdog timer driver built into the Intel SCU for Intel MID 1281 Platforms. 1282 1283 This driver currently supports only the watchdog evolution 1284 implementation in SCU, available for Merrifield generation. 1285 1286 To compile this driver as a module, choose M here. 1287 1288config ITCO_WDT 1289 tristate "Intel TCO Timer/Watchdog" 1290 depends on (X86 || IA64) && PCI 1291 select WATCHDOG_CORE 1292 depends on I2C || I2C=n 1293 depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT 1294 select LPC_ICH if !EXPERT 1295 select I2C_I801 if !EXPERT && I2C 1296 help 1297 Hardware driver for the intel TCO timer based watchdog devices. 1298 These drivers are included in the Intel 82801 I/O Controller 1299 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 1300 controller hub. 1301 1302 The TCO (Total Cost of Ownership) timer is a watchdog timer 1303 that will reboot the machine after its second expiration. The 1304 expiration time can be configured with the "heartbeat" parameter. 1305 1306 On some motherboards the driver may fail to reset the chipset's 1307 NO_REBOOT flag which prevents the watchdog from rebooting the 1308 machine. If this is the case you will get a kernel message like 1309 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1310 1311 To compile this driver as a module, choose M here: the 1312 module will be called iTCO_wdt. 1313 1314config ITCO_VENDOR_SUPPORT 1315 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 1316 depends on ITCO_WDT 1317 help 1318 Add vendor specific support to the intel TCO timer based watchdog 1319 devices. At this moment we only have additional support for some 1320 SuperMicro Inc. motherboards. 1321 1322config IT8712F_WDT 1323 tristate "IT8712F (Smart Guardian) Watchdog Timer" 1324 depends on X86 || COMPILE_TEST 1325 help 1326 This is the driver for the built-in watchdog timer on the IT8712F 1327 Super I/0 chipset used on many motherboards. 1328 1329 If the driver does not work, then make sure that the game port in 1330 the BIOS is enabled. 1331 1332 To compile this driver as a module, choose M here: the 1333 module will be called it8712f_wdt. 1334 1335config IT87_WDT 1336 tristate "IT87 Watchdog Timer" 1337 depends on X86 || COMPILE_TEST 1338 select WATCHDOG_CORE 1339 help 1340 This is the driver for the hardware watchdog on the ITE IT8607, 1341 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702, 1342 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and 1343 IT8783 Super I/O chips. 1344 1345 This watchdog simply watches your kernel to make sure it doesn't 1346 freeze, and if it does, it reboots your computer after a certain 1347 amount of time. 1348 1349 To compile this driver as a module, choose M here: the module will 1350 be called it87_wdt. 1351 1352config HP_WATCHDOG 1353 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 1354 select WATCHDOG_CORE 1355 depends on (ARM64 || X86 || COMPILE_TEST) && PCI 1356 help 1357 A software monitoring watchdog and NMI handling driver. This driver 1358 will detect lockups and provide a stack trace. This is a driver that 1359 will only load on an HP ProLiant system with a minimum of iLO2 support. 1360 To compile this driver as a module, choose M here: the module will be 1361 called hpwdt. 1362 1363config HPWDT_NMI_DECODING 1364 bool "NMI support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 1365 depends on X86 && HP_WATCHDOG 1366 default y 1367 help 1368 Enables the NMI handler for the watchdog pretimeout NMI and the iLO 1369 "Generate NMI to System" virtual button. When an NMI is claimed 1370 by the driver, panic is called. 1371 1372config KEMPLD_WDT 1373 tristate "Kontron COM Watchdog Timer" 1374 depends on MFD_KEMPLD 1375 select WATCHDOG_CORE 1376 help 1377 Support for the PLD watchdog on some Kontron ETX and COMexpress 1378 (ETXexpress) modules 1379 1380 This driver can also be built as a module. If so, the module will be 1381 called kempld_wdt. 1382 1383config SC1200_WDT 1384 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 1385 depends on X86 || COMPILE_TEST 1386 help 1387 This is a driver for National Semiconductor PC87307/PC97307 hardware 1388 watchdog cards as found on the SC1200. This watchdog is mainly used 1389 for power management purposes and can be used to power down the device 1390 during inactivity periods (includes interrupt activity monitoring). 1391 1392 To compile this driver as a module, choose M here: the 1393 module will be called sc1200wdt. 1394 1395 Most people will say N. 1396 1397config SCx200_WDT 1398 tristate "National Semiconductor SCx200 Watchdog" 1399 depends on SCx200 && PCI 1400 help 1401 Enable the built-in watchdog timer support on the National 1402 Semiconductor SCx200 processors. 1403 1404 If compiled as a module, it will be called scx200_wdt. 1405 1406config PC87413_WDT 1407 tristate "NS PC87413 watchdog" 1408 depends on X86 || COMPILE_TEST 1409 help 1410 This is the driver for the hardware watchdog on the PC87413 chipset 1411 This watchdog simply watches your kernel to make sure it doesn't 1412 freeze, and if it does, it reboots your computer after a certain 1413 amount of time. 1414 1415 To compile this driver as a module, choose M here: the 1416 module will be called pc87413_wdt. 1417 1418 Most people will say N. 1419 1420config NV_TCO 1421 tristate "nVidia TCO Timer/Watchdog" 1422 depends on (X86 || COMPILE_TEST) && PCI 1423 help 1424 Hardware driver for the TCO timer built into the nVidia Hub family 1425 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 1426 watchdog timer that will reboot the machine after its second 1427 expiration. The expiration time can be configured with the 1428 "heartbeat" parameter. 1429 1430 On some motherboards the driver may fail to reset the chipset's 1431 NO_REBOOT flag which prevents the watchdog from rebooting the 1432 machine. If this is the case you will get a kernel message like 1433 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1434 1435 To compile this driver as a module, choose M here: the 1436 module will be called nv_tco. 1437 1438config RDC321X_WDT 1439 tristate "RDC R-321x SoC watchdog" 1440 depends on X86_RDC321X || COMPILE_TEST 1441 depends on PCI 1442 help 1443 This is the driver for the built in hardware watchdog 1444 in the RDC R-321x SoC. 1445 1446 To compile this driver as a module, choose M here: the 1447 module will be called rdc321x_wdt. 1448 1449config 60XX_WDT 1450 tristate "SBC-60XX Watchdog Timer" 1451 depends on X86 || COMPILE_TEST 1452 help 1453 This driver can be used with the watchdog timer found on some 1454 single board computers, namely the 6010 PII based computer. 1455 It may well work with other cards. It reads port 0x443 to enable 1456 and re-set the watchdog timer, and reads port 0x45 to disable 1457 the watchdog. If you have a card that behave in similar ways, 1458 you can probably make this driver work with your card as well. 1459 1460 You can compile this driver directly into the kernel, or use 1461 it as a module. The module will be called sbc60xxwdt. 1462 1463config SBC8360_WDT 1464 tristate "SBC8360 Watchdog Timer" 1465 depends on X86_32 1466 help 1467 1468 This is the driver for the hardware watchdog on the SBC8360 Single 1469 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 1470 1471 To compile this driver as a module, choose M here: the 1472 module will be called sbc8360. 1473 1474 Most people will say N. 1475 1476config SBC7240_WDT 1477 tristate "SBC Nano 7240 Watchdog Timer" 1478 depends on X86_32 && !UML 1479 help 1480 This is the driver for the hardware watchdog found on the IEI 1481 single board computers EPIC Nano 7240 (and likely others). This 1482 watchdog simply watches your kernel to make sure it doesn't freeze, 1483 and if it does, it reboots your computer after a certain amount of 1484 time. 1485 1486 To compile this driver as a module, choose M here: the 1487 module will be called sbc7240_wdt. 1488 1489config CPU5_WDT 1490 tristate "SMA CPU5 Watchdog" 1491 depends on X86 || COMPILE_TEST 1492 help 1493 TBD. 1494 To compile this driver as a module, choose M here: the 1495 module will be called cpu5wdt. 1496 1497config SMSC_SCH311X_WDT 1498 tristate "SMSC SCH311X Watchdog Timer" 1499 depends on X86 || COMPILE_TEST 1500 help 1501 This is the driver for the hardware watchdog timer on the 1502 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1503 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1504 serial ports). 1505 1506 To compile this driver as a module, choose M here: the 1507 module will be called sch311x_wdt. 1508 1509config SMSC37B787_WDT 1510 tristate "Winbond SMsC37B787 Watchdog Timer" 1511 depends on X86 || COMPILE_TEST 1512 help 1513 This is the driver for the hardware watchdog component on the 1514 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1515 from Vision Systems and maybe others. 1516 1517 This watchdog simply watches your kernel to make sure it doesn't 1518 freeze, and if it does, it reboots your computer after a certain 1519 amount of time. 1520 1521 Usually a userspace daemon will notify the kernel WDT driver that 1522 userspace is still alive, at regular intervals. 1523 1524 To compile this driver as a module, choose M here: the 1525 module will be called smsc37b787_wdt. 1526 1527 Most people will say N. 1528 1529config TQMX86_WDT 1530 tristate "TQ-Systems TQMX86 Watchdog Timer" 1531 depends on X86 || COMPILE_TEST 1532 select WATCHDOG_CORE 1533 help 1534 This is the driver for the hardware watchdog timer in the TQMX86 IO 1535 controller found on some of their ComExpress Modules. 1536 1537 To compile this driver as a module, choose M here; the module 1538 will be called tqmx86_wdt. 1539 1540 Most people will say N. 1541 1542config VIA_WDT 1543 tristate "VIA Watchdog Timer" 1544 depends on (X86 || COMPILE_TEST) && PCI 1545 select WATCHDOG_CORE 1546 help 1547 This is the driver for the hardware watchdog timer on VIA 1548 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1549 1550 To compile this driver as a module, choose M here; the module 1551 will be called via_wdt. 1552 1553 Most people will say N. 1554 1555config W83627HF_WDT 1556 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1557 depends on X86 || COMPILE_TEST 1558 select WATCHDOG_CORE 1559 help 1560 This is the driver for the hardware watchdog on the following 1561 Super I/O chips. 1562 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1563 W83637HF 1564 W83667HG/HG-B 1565 W83687THF 1566 W83697HF 1567 W83697UG 1568 NCT6775 1569 NCT6776 1570 NCT6779 1571 NCT6791 1572 NCT6792 1573 NCT6102D/04D/06D 1574 NCT6116D 1575 1576 This watchdog simply watches your kernel to make sure it doesn't 1577 freeze, and if it does, it reboots your computer after a certain 1578 amount of time. 1579 1580 To compile this driver as a module, choose M here: the 1581 module will be called w83627hf_wdt. 1582 1583 Most people will say N. 1584 1585config W83877F_WDT 1586 tristate "W83877F (EMACS) Watchdog Timer" 1587 depends on X86 || COMPILE_TEST 1588 help 1589 This is the driver for the hardware watchdog on the W83877F chipset 1590 as used in EMACS PC-104 motherboards (and likely others). This 1591 watchdog simply watches your kernel to make sure it doesn't freeze, 1592 and if it does, it reboots your computer after a certain amount of 1593 time. 1594 1595 To compile this driver as a module, choose M here: the 1596 module will be called w83877f_wdt. 1597 1598 Most people will say N. 1599 1600config W83977F_WDT 1601 tristate "W83977F (PCM-5335) Watchdog Timer" 1602 depends on X86 || COMPILE_TEST 1603 help 1604 This is the driver for the hardware watchdog on the W83977F I/O chip 1605 as used in AAEON's PCM-5335 SBC (and likely others). This 1606 watchdog simply watches your kernel to make sure it doesn't freeze, 1607 and if it does, it reboots your computer after a certain amount of 1608 time. 1609 1610 To compile this driver as a module, choose M here: the 1611 module will be called w83977f_wdt. 1612 1613config MACHZ_WDT 1614 tristate "ZF MachZ Watchdog" 1615 depends on X86 || COMPILE_TEST 1616 help 1617 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1618 N. This is the driver for the watchdog timer built-in on that 1619 processor using ZF-Logic interface. This watchdog simply watches 1620 your kernel to make sure it doesn't freeze, and if it does, it 1621 reboots your computer after a certain amount of time. 1622 1623 To compile this driver as a module, choose M here: the 1624 module will be called machzwd. 1625 1626config SBC_EPX_C3_WATCHDOG 1627 tristate "Winsystems SBC EPX-C3 watchdog" 1628 depends on X86 || COMPILE_TEST 1629 help 1630 This is the driver for the built-in watchdog timer on the EPX-C3 1631 Single-board computer made by Winsystems, Inc. 1632 1633 *Note*: This hardware watchdog is not probeable and thus there 1634 is no way to know if writing to its IO address will corrupt 1635 your system or have any real effect. The only way to be sure 1636 that this driver does what you want is to make sure you 1637 are running it on an EPX-C3 from Winsystems with the watchdog 1638 timer at IO address 0x1ee and 0x1ef. It will write to both those 1639 IO ports. Basically, the assumption is made that if you compile 1640 this driver into your kernel and/or load it as a module, that you 1641 know what you are doing and that you are in fact running on an 1642 EPX-C3 board! 1643 1644 To compile this driver as a module, choose M here: the 1645 module will be called sbc_epx_c3. 1646 1647config INTEL_MEI_WDT 1648 tristate "Intel MEI iAMT Watchdog" 1649 depends on INTEL_MEI && X86 1650 select WATCHDOG_CORE 1651 help 1652 A device driver for the Intel MEI iAMT watchdog. 1653 1654 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. 1655 Whenever the OS hangs or crashes, iAMT will send an event 1656 to any subscriber to this event. The watchdog doesn't reset the 1657 the platform. 1658 1659 To compile this driver as a module, choose M here: 1660 the module will be called mei_wdt. 1661 1662config NI903X_WDT 1663 tristate "NI 903x/913x Watchdog" 1664 depends on X86 && ACPI 1665 select WATCHDOG_CORE 1666 help 1667 This is the driver for the watchdog timer on the National Instruments 1668 903x/913x real-time controllers. 1669 1670 To compile this driver as a module, choose M here: the module will be 1671 called ni903x_wdt. 1672 1673config NIC7018_WDT 1674 tristate "NIC7018 Watchdog" 1675 depends on X86 && ACPI 1676 select WATCHDOG_CORE 1677 help 1678 Support for National Instruments NIC7018 Watchdog. 1679 1680 To compile this driver as a module, choose M here: the module will be 1681 called nic7018_wdt. 1682 1683config SIEMENS_SIMATIC_IPC_WDT 1684 tristate "Siemens Simatic IPC Watchdog" 1685 depends on SIEMENS_SIMATIC_IPC && PCI 1686 default y 1687 select WATCHDOG_CORE 1688 select P2SB if X86 1689 help 1690 This driver adds support for several watchdogs found in Industrial 1691 PCs from Siemens. 1692 1693 To compile this driver as a module, choose M here: the module will be 1694 called simatic-ipc-wdt. 1695 1696# M68K Architecture 1697 1698config M54xx_WATCHDOG 1699 tristate "MCF54xx watchdog support" 1700 depends on M548x 1701 help 1702 To compile this driver as a module, choose M here: the 1703 module will be called m54xx_wdt. 1704 1705# MicroBlaze Architecture 1706 1707# MIPS Architecture 1708 1709config ATH79_WDT 1710 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1711 depends on ATH79 || (ARM && COMPILE_TEST) 1712 help 1713 Hardware driver for the built-in watchdog timer on the Atheros 1714 AR71XX/AR724X/AR913X SoCs. 1715 1716config BCM47XX_WDT 1717 tristate "Broadcom BCM47xx Watchdog Timer" 1718 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST 1719 select WATCHDOG_CORE 1720 help 1721 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1722 1723config RC32434_WDT 1724 tristate "IDT RC32434 SoC Watchdog Timer" 1725 depends on MIKROTIK_RB532 1726 help 1727 Hardware driver for the IDT RC32434 SoC built-in 1728 watchdog timer. 1729 1730 To compile this driver as a module, choose M here: the 1731 module will be called rc32434_wdt. 1732 1733config INDYDOG 1734 tristate "Indy/I2 Hardware Watchdog" 1735 depends on SGI_HAS_INDYDOG 1736 help 1737 Hardware driver for the Indy's/I2's watchdog. This is a 1738 watchdog timer that will reboot the machine after a 60 second 1739 timer expired and no process has written to /dev/watchdog during 1740 that time. 1741 1742config JZ4740_WDT 1743 tristate "Ingenic jz4740 SoC hardware watchdog" 1744 depends on MIPS || COMPILE_TEST 1745 depends on COMMON_CLK 1746 select WATCHDOG_CORE 1747 select MFD_SYSCON 1748 help 1749 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1750 1751config WDT_MTX1 1752 tristate "MTX-1 Hardware Watchdog" 1753 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST) 1754 help 1755 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1756 will reboot the machine after a 100 seconds timer expired. 1757 1758config SIBYTE_WDOG 1759 tristate "Sibyte SoC hardware watchdog" 1760 depends on CPU_SB1 1761 help 1762 Watchdog driver for the built in watchdog hardware in Sibyte 1763 SoC processors. There are apparently two watchdog timers 1764 on such processors; this driver supports only the first one, 1765 because currently Linux only supports exporting one watchdog 1766 to userspace. 1767 1768 To compile this driver as a loadable module, choose M here. 1769 The module will be called sb_wdog. 1770 1771config AR7_WDT 1772 tristate "TI AR7 Watchdog Timer" 1773 depends on AR7 || (MIPS && 32BIT && COMPILE_TEST) 1774 help 1775 Hardware driver for the TI AR7 Watchdog Timer. 1776 1777config TXX9_WDT 1778 tristate "Toshiba TXx9 Watchdog Timer" 1779 depends on CPU_TX49XX || (MIPS && COMPILE_TEST) 1780 select WATCHDOG_CORE 1781 help 1782 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1783 1784config OCTEON_WDT 1785 tristate "Cavium OCTEON SOC family Watchdog Timer" 1786 depends on CAVIUM_OCTEON_SOC 1787 default y 1788 select WATCHDOG_CORE 1789 select EXPORT_UASM if OCTEON_WDT = m 1790 help 1791 Hardware driver for OCTEON's on chip watchdog timer. 1792 Enables the watchdog for all cores running Linux. It 1793 installs a NMI handler and pokes the watchdog based on an 1794 interrupt. On first expiration of the watchdog, the 1795 interrupt handler pokes it. The second expiration causes an 1796 NMI that prints a message. The third expiration causes a 1797 global soft reset. 1798 1799 When userspace has /dev/watchdog open, no poking is done 1800 from the first interrupt, it is then only poked when the 1801 device is written. 1802 1803config MARVELL_GTI_WDT 1804 tristate "Marvell GTI Watchdog driver" 1805 depends on ARCH_THUNDER || (COMPILE_TEST && 64BIT) 1806 default y 1807 select WATCHDOG_CORE 1808 help 1809 Marvell GTI hardware supports watchdog timer. First timeout 1810 works as watchdog pretimeout and installed interrupt handler 1811 will be called on first timeout. Hardware can generate interrupt 1812 to SCP on second timeout but it is not enabled, so second 1813 timeout is ignored. If device poke does not happen then system 1814 will reboot on third timeout. 1815 1816config BCM2835_WDT 1817 tristate "Broadcom BCM2835 hardware watchdog" 1818 depends on ARCH_BCM2835 || (OF && COMPILE_TEST) 1819 select WATCHDOG_CORE 1820 help 1821 Watchdog driver for the built in watchdog hardware in Broadcom 1822 BCM2835 SoC. 1823 1824 To compile this driver as a loadable module, choose M here. 1825 The module will be called bcm2835_wdt. 1826 1827config BCM_KONA_WDT 1828 tristate "BCM Kona Watchdog" 1829 depends on ARCH_BCM_MOBILE || COMPILE_TEST 1830 select WATCHDOG_CORE 1831 help 1832 Support for the watchdog timer on the following Broadcom BCM281xx 1833 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1834 BCM28155 variants. 1835 1836 Say 'Y' or 'M' here to enable the driver. The module will be called 1837 bcm_kona_wdt. 1838 1839config BCM_KONA_WDT_DEBUG 1840 bool "DEBUGFS support for BCM Kona Watchdog" 1841 depends on BCM_KONA_WDT || COMPILE_TEST 1842 help 1843 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1844 access to the driver's internal data structures as well as watchdog 1845 timer hardware registres. 1846 1847 If in doubt, say 'N'. 1848 1849config BCM7038_WDT 1850 tristate "BCM63xx/BCM7038 Watchdog" 1851 select WATCHDOG_CORE 1852 depends on HAS_IOMEM 1853 depends on ARCH_BCMBCA || ARCH_BRCMSTB || BMIPS_GENERIC || BCM63XX || COMPILE_TEST 1854 help 1855 Watchdog driver for the built-in hardware in Broadcom 7038 and 1856 later SoCs used in set-top boxes. BCM7038 was made public 1857 during the 2004 CES, and since then, many Broadcom chips use this 1858 watchdog block, including some cable modem chips and DSL (63xx) 1859 chips. 1860 1861config IMGPDC_WDT 1862 tristate "Imagination Technologies PDC Watchdog Timer" 1863 depends on HAS_IOMEM 1864 depends on MIPS || COMPILE_TEST 1865 select WATCHDOG_CORE 1866 help 1867 Driver for Imagination Technologies PowerDown Controller 1868 Watchdog Timer. 1869 1870 To compile this driver as a loadable module, choose M here. 1871 The module will be called imgpdc_wdt. 1872 1873config LANTIQ_WDT 1874 tristate "Lantiq SoC watchdog" 1875 depends on LANTIQ 1876 select WATCHDOG_CORE 1877 help 1878 Hardware driver for the Lantiq SoC Watchdog Timer. 1879 1880config LOONGSON1_WDT 1881 tristate "Loongson1 SoC hardware watchdog" 1882 depends on MACH_LOONGSON32 || COMPILE_TEST 1883 select WATCHDOG_CORE 1884 help 1885 Hardware driver for the Loongson1 SoC Watchdog Timer. 1886 1887config RALINK_WDT 1888 tristate "Ralink SoC watchdog" 1889 select WATCHDOG_CORE 1890 depends on RALINK 1891 help 1892 Hardware driver for the Ralink SoC Watchdog Timer. 1893 1894config GXP_WATCHDOG 1895 tristate "HPE GXP watchdog support" 1896 depends on ARCH_HPE_GXP || COMPILE_TEST 1897 select WATCHDOG_CORE 1898 help 1899 Say Y here to include support for the watchdog timer 1900 in HPE GXP SoCs. 1901 1902 To compile this driver as a module, choose M here. 1903 The module will be called gxp-wdt. 1904 1905config MT7621_WDT 1906 tristate "Mediatek SoC watchdog" 1907 select WATCHDOG_CORE 1908 select REGMAP_MMIO 1909 select MFD_SYSCON 1910 depends on SOC_MT7620 || SOC_MT7621 || COMPILE_TEST 1911 help 1912 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer. 1913 1914config PIC32_WDT 1915 tristate "Microchip PIC32 hardware watchdog" 1916 select WATCHDOG_CORE 1917 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1918 help 1919 Watchdog driver for the built in watchdog hardware in a PIC32. 1920 1921 Configuration bits must be set appropriately for the watchdog to be 1922 controlled by this driver. 1923 1924 To compile this driver as a loadable module, choose M here. 1925 The module will be called pic32-wdt. 1926 1927config PIC32_DMT 1928 tristate "Microchip PIC32 Deadman Timer" 1929 select WATCHDOG_CORE 1930 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1931 help 1932 Watchdog driver for PIC32 instruction fetch counting timer. This 1933 specific timer is typically be used in mission critical and safety 1934 critical applications, where any single failure of the software 1935 functionality and sequencing must be detected. 1936 1937 To compile this driver as a loadable module, choose M here. 1938 The module will be called pic32-dmt. 1939 1940# PARISC Architecture 1941 1942# POWERPC Architecture 1943 1944config GEF_WDT 1945 tristate "GE Watchdog Timer" 1946 depends on GE_FPGA 1947 help 1948 Watchdog timer found in a number of GE single board computers. 1949 1950config MPC5200_WDT 1951 bool "MPC52xx Watchdog Timer" 1952 depends on PPC_MPC52xx || COMPILE_TEST 1953 help 1954 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 1955 1956config 8xxx_WDT 1957 tristate "MPC8xxx Platform Watchdog Timer" 1958 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x 1959 select WATCHDOG_CORE 1960 help 1961 This driver is for a SoC level watchdog that exists on some 1962 Freescale PowerPC processors. So far this driver supports: 1963 - MPC8xx watchdogs 1964 - MPC83xx watchdogs 1965 - MPC86xx watchdogs 1966 1967 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 1968 1969config PIKA_WDT 1970 tristate "PIKA FPGA Watchdog" 1971 depends on WARP || (PPC64 && COMPILE_TEST) 1972 default y 1973 help 1974 This enables the watchdog in the PIKA FPGA. Currently used on 1975 the Warp platform. 1976 1977config BOOKE_WDT 1978 tristate "PowerPC Book-E Watchdog Timer" 1979 depends on BOOKE || 4xx 1980 select WATCHDOG_CORE 1981 help 1982 Watchdog driver for PowerPC Book-E chips, such as the Freescale 1983 MPC85xx SOCs and the IBM PowerPC 440. 1984 1985 Please see Documentation/watchdog/watchdog-api.rst for 1986 more information. 1987 1988config BOOKE_WDT_DEFAULT_TIMEOUT 1989 int "PowerPC Book-E Watchdog Timer Default Timeout" 1990 depends on BOOKE_WDT 1991 default 38 if PPC_E500 1992 range 0 63 if PPC_E500 1993 default 3 if !PPC_E500 1994 range 0 3 if !PPC_E500 1995 help 1996 Select the default watchdog timer period to be used by the PowerPC 1997 Book-E watchdog driver. A watchdog "event" occurs when the bit 1998 position represented by this number transitions from zero to one. 1999 2000 For Freescale Book-E processors, this is a number between 0 and 63. 2001 For other Book-E processors, this is a number between 0 and 3. 2002 2003 The value can be overridden by the wdt_period command-line parameter. 2004 2005config MEN_A21_WDT 2006 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 2007 select WATCHDOG_CORE 2008 depends on GPIOLIB || COMPILE_TEST 2009 help 2010 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 2011 2012 The driver can also be built as a module. If so, the module will be 2013 called mena21_wdt. 2014 2015 If unsure select N here. 2016 2017# PPC64 Architecture 2018 2019config PSERIES_WDT 2020 tristate "POWER Architecture Platform Watchdog Timer" 2021 depends on PPC_PSERIES 2022 select WATCHDOG_CORE 2023 help 2024 Driver for virtual watchdog timers provided by PAPR 2025 hypervisors (e.g. PowerVM, KVM). 2026 2027config WATCHDOG_RTAS 2028 tristate "RTAS watchdog" 2029 depends on PPC_RTAS 2030 help 2031 This driver adds watchdog support for the RTAS watchdog. 2032 2033 To compile this driver as a module, choose M here. The module 2034 will be called wdrtas. 2035 2036# RISC-V Architecture 2037 2038config STARFIVE_WATCHDOG 2039 tristate "StarFive Watchdog support" 2040 depends on ARCH_STARFIVE || COMPILE_TEST 2041 select WATCHDOG_CORE 2042 default ARCH_STARFIVE 2043 help 2044 Say Y here to support the watchdog of StarFive JH7100 and JH7110 2045 SoC. This driver can also be built as a module if choose M. 2046 2047# S390 Architecture 2048 2049config DIAG288_WATCHDOG 2050 tristate "System z diag288 Watchdog" 2051 depends on S390 2052 select WATCHDOG_CORE 2053 help 2054 IBM s/390 and zSeries machines running under z/VM 5.1 or later 2055 provide a virtual watchdog timer to their guest that cause a 2056 user define Control Program command to be executed after a 2057 timeout. 2058 LPAR provides a very similar interface. This driver handles 2059 both. 2060 2061 To compile this driver as a module, choose M here. The module 2062 will be called diag288_wdt. 2063 2064# SUPERH (sh + sh64) Architecture 2065 2066config SH_WDT 2067 tristate "SuperH Watchdog" 2068 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST) 2069 select WATCHDOG_CORE 2070 help 2071 This driver adds watchdog support for the integrated watchdog in the 2072 SuperH processors. If you have one of these processors and wish 2073 to have watchdog support enabled, say Y, otherwise say N. 2074 2075 As a side note, saying Y here will automatically boost HZ to 1000 2076 so that the timer has a chance to clear the overflow counter. On 2077 slower systems (such as the SH-2 and SH-3) this will likely yield 2078 some performance issues. As such, the WDT should be avoided here 2079 unless it is absolutely necessary. 2080 2081 To compile this driver as a module, choose M here: the 2082 module will be called shwdt. 2083 2084# SPARC Architecture 2085 2086# SPARC64 Architecture 2087 2088config WATCHDOG_CP1XXX 2089 tristate "CP1XXX Hardware Watchdog support" 2090 depends on SPARC64 && PCI 2091 help 2092 This is the driver for the hardware watchdog timers present on 2093 Sun Microsystems CompactPCI models CP1400 and CP1500. 2094 2095 To compile this driver as a module, choose M here: the 2096 module will be called cpwatchdog. 2097 2098 If you do not have a CompactPCI model CP1400 or CP1500, or 2099 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 2100 you should say N to this option. 2101 2102config WATCHDOG_RIO 2103 tristate "RIO Hardware Watchdog support" 2104 depends on SPARC64 && PCI 2105 help 2106 Say Y here to support the hardware watchdog capability on Sun RIO 2107 machines. The watchdog timeout period is normally one minute but 2108 can be changed with a boot-time parameter. 2109 2110config WATCHDOG_SUN4V 2111 tristate "Sun4v Watchdog support" 2112 select WATCHDOG_CORE 2113 depends on SPARC64 2114 help 2115 Say Y here to support the hypervisor watchdog capability embedded 2116 in the SPARC sun4v architecture. 2117 2118 To compile this driver as a module, choose M here. The module will 2119 be called sun4v_wdt. 2120 2121# XTENSA Architecture 2122 2123# Xen Architecture 2124 2125config XEN_WDT 2126 tristate "Xen Watchdog support" 2127 depends on XEN 2128 select WATCHDOG_CORE 2129 help 2130 Say Y here to support the hypervisor watchdog capability provided 2131 by Xen 4.0 and newer. The watchdog timeout period is normally one 2132 minute but can be changed with a boot-time parameter. 2133 2134config UML_WATCHDOG 2135 tristate "UML watchdog" 2136 depends on UML || COMPILE_TEST 2137 2138# 2139# ISA-based Watchdog Cards 2140# 2141 2142comment "ISA-based Watchdog Cards" 2143 depends on ISA 2144 2145config PCWATCHDOG 2146 tristate "Berkshire Products ISA-PC Watchdog" 2147 depends on ISA 2148 help 2149 This is the driver for the Berkshire Products ISA-PC Watchdog card. 2150 This card simply watches your kernel to make sure it doesn't freeze, 2151 and if it does, it reboots your computer after a certain amount of 2152 time. This driver is like the WDT501 driver but for different 2153 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.rst>. 2154 The PC watchdog cards can be ordered from <http://www.berkprod.com/>. 2155 2156 To compile this driver as a module, choose M here: the 2157 module will be called pcwd. 2158 2159 Most people will say N. 2160 2161config MIXCOMWD 2162 tristate "Mixcom Watchdog" 2163 depends on ISA 2164 help 2165 This is a driver for the Mixcom hardware watchdog cards. This 2166 watchdog simply watches your kernel to make sure it doesn't freeze, 2167 and if it does, it reboots your computer after a certain amount of 2168 time. 2169 2170 To compile this driver as a module, choose M here: the 2171 module will be called mixcomwd. 2172 2173 Most people will say N. 2174 2175config WDT 2176 tristate "WDT Watchdog timer" 2177 depends on ISA 2178 help 2179 If you have a WDT500P or WDT501P watchdog board, say Y here, 2180 otherwise N. It is not possible to probe for this board, which means 2181 that you have to inform the kernel about the IO port and IRQ that 2182 is needed (you can do this via the io and irq parameters) 2183 2184 To compile this driver as a module, choose M here: the 2185 module will be called wdt. 2186 2187# 2188# PCI-based Watchdog Cards 2189# 2190 2191comment "PCI-based Watchdog Cards" 2192 depends on PCI 2193 2194config PCIPCWATCHDOG 2195 tristate "Berkshire Products PCI-PC Watchdog" 2196 depends on PCI 2197 help 2198 This is the driver for the Berkshire Products PCI-PC Watchdog card. 2199 This card simply watches your kernel to make sure it doesn't freeze, 2200 and if it does, it reboots your computer after a certain amount of 2201 time. The card can also monitor the internal temperature of the PC. 2202 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 2203 2204 To compile this driver as a module, choose M here: the 2205 module will be called pcwd_pci. 2206 2207 Most people will say N. 2208 2209config WDTPCI 2210 tristate "PCI-WDT500/501 Watchdog timer" 2211 depends on PCI 2212 help 2213 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 2214 2215 If you have a PCI-WDT501 watchdog board then you can enable the 2216 temperature sensor by setting the type parameter to 501. 2217 2218 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 2219 can do this via the tachometer parameter. Only do this if you have a 2220 fan tachometer actually set up. 2221 2222 To compile this driver as a module, choose M here: the 2223 module will be called wdt_pci. 2224 2225# 2226# USB-based Watchdog Cards 2227# 2228 2229comment "USB-based Watchdog Cards" 2230 depends on USB 2231 2232config USBPCWATCHDOG 2233 tristate "Berkshire Products USB-PC Watchdog" 2234 depends on USB 2235 help 2236 This is the driver for the Berkshire Products USB-PC Watchdog card. 2237 This card simply watches your kernel to make sure it doesn't freeze, 2238 and if it does, it reboots your computer after a certain amount of 2239 time. The card can also monitor the internal temperature of the PC. 2240 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 2241 2242 To compile this driver as a module, choose M here: the 2243 module will be called pcwd_usb. 2244 2245 Most people will say N. 2246 2247config KEEMBAY_WATCHDOG 2248 tristate "Intel Keem Bay SoC non-secure watchdog" 2249 depends on ARCH_KEEMBAY || (ARM64 && COMPILE_TEST) 2250 select WATCHDOG_CORE 2251 help 2252 This option enable support for an In-secure watchdog timer driver for 2253 Intel Keem Bay SoC. This WDT has a 32 bit timer and decrements in every 2254 count unit. An interrupt will be triggered, when the count crosses 2255 the threshold configured in the register. 2256 2257 To compile this driver as a module, choose M here: the 2258 module will be called keembay_wdt. 2259 2260endif # WATCHDOG 2261