1 2# 3# Watchdog device configuration 4# 5 6menuconfig WATCHDOG 7 bool "Watchdog Timer Support" 8 ---help--- 9 If you say Y here (and to one of the following options) and create a 10 character special file /dev/watchdog with major number 10 and minor 11 number 130 using mknod ("man mknod"), you will get a watchdog, i.e.: 12 subsequently opening the file and then failing to write to it for 13 longer than 1 minute will result in rebooting the machine. This 14 could be useful for a networked machine that needs to come back 15 on-line as fast as possible after a lock-up. There's both a watchdog 16 implementation entirely in software (which can sometimes fail to 17 reboot the machine) and a driver for hardware watchdog boards, which 18 are more robust and can also keep track of the temperature inside 19 your computer. For details, read 20 <file:Documentation/watchdog/watchdog-api.txt> in the kernel source. 21 22 The watchdog is usually used together with the watchdog daemon 23 which is available from 24 <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can 25 also monitor NFS connections and can reboot the machine when the process 26 table is full. 27 28 If unsure, say N. 29 30if WATCHDOG 31 32config WATCHDOG_CORE 33 bool "WatchDog Timer Driver Core" 34 ---help--- 35 Say Y here if you want to use the new watchdog timer driver core. 36 This driver provides a framework for all watchdog timer drivers 37 and gives them the /dev/watchdog interface (and later also the 38 sysfs interface). 39 40config WATCHDOG_NOWAYOUT 41 bool "Disable watchdog shutdown on close" 42 help 43 The default watchdog behaviour (which you get if you say N here) is 44 to stop the timer if the process managing it closes the file 45 /dev/watchdog. It's always remotely possible that this process might 46 get killed. If you say Y here, the watchdog cannot be stopped once 47 it has been started. 48 49config WATCHDOG_HANDLE_BOOT_ENABLED 50 bool "Update boot-enabled watchdog until userspace takes over" 51 default y 52 help 53 The default watchdog behaviour (which you get if you say Y here) is 54 to ping watchdog devices that were enabled before the driver has 55 been loaded until control is taken over from userspace using the 56 /dev/watchdog file. If you say N here, the kernel will not update 57 the watchdog on its own. Thus if your userspace does not start fast 58 enough your device will reboot. 59 60config WATCHDOG_SYSFS 61 bool "Read different watchdog information through sysfs" 62 help 63 Say Y here if you want to enable watchdog device status read through 64 sysfs attributes. 65 66# 67# General Watchdog drivers 68# 69 70comment "Watchdog Device Drivers" 71 72# Architecture Independent 73 74config SOFT_WATCHDOG 75 tristate "Software watchdog" 76 select WATCHDOG_CORE 77 help 78 A software monitoring watchdog. This will fail to reboot your system 79 from some situations that the hardware watchdog will recover 80 from. Equally it's a lot cheaper to install. 81 82 To compile this driver as a module, choose M here: the 83 module will be called softdog. 84 85config SOFT_WATCHDOG_PRETIMEOUT 86 bool "Software watchdog pretimeout governor support" 87 depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV 88 help 89 Enable this if you want to use pretimeout governors with the software 90 watchdog. Be aware that governors might affect the watchdog because it 91 is purely software, e.g. the panic governor will stall it! 92 93config DA9052_WATCHDOG 94 tristate "Dialog DA9052 Watchdog" 95 depends on PMIC_DA9052 || COMPILE_TEST 96 select WATCHDOG_CORE 97 help 98 Support for the watchdog in the DA9052 PMIC. Watchdog trigger 99 cause system reset. 100 101 Say Y here to include support for the DA9052 watchdog. 102 Alternatively say M to compile the driver as a module, 103 which will be called da9052_wdt. 104 105config DA9055_WATCHDOG 106 tristate "Dialog Semiconductor DA9055 Watchdog" 107 depends on MFD_DA9055 || COMPILE_TEST 108 select WATCHDOG_CORE 109 help 110 If you say yes here you get support for watchdog on the Dialog 111 Semiconductor DA9055 PMIC. 112 113 This driver can also be built as a module. If so, the module 114 will be called da9055_wdt. 115 116config DA9063_WATCHDOG 117 tristate "Dialog DA9063 Watchdog" 118 depends on MFD_DA9063 || COMPILE_TEST 119 select WATCHDOG_CORE 120 help 121 Support for the watchdog in the DA9063 PMIC. 122 123 This driver can be built as a module. The module name is da9063_wdt. 124 125config DA9062_WATCHDOG 126 tristate "Dialog DA9062/61 Watchdog" 127 depends on MFD_DA9062 || COMPILE_TEST 128 select WATCHDOG_CORE 129 help 130 Support for the watchdog in the DA9062 and DA9061 PMICs. 131 132 This driver can be built as a module. The module name is da9062_wdt. 133 134config GPIO_WATCHDOG 135 tristate "Watchdog device controlled through GPIO-line" 136 depends on OF_GPIO 137 select WATCHDOG_CORE 138 help 139 If you say yes here you get support for watchdog device 140 controlled through GPIO-line. 141 142config GPIO_WATCHDOG_ARCH_INITCALL 143 bool "Register the watchdog as early as possible" 144 depends on GPIO_WATCHDOG=y 145 help 146 In some situations, the default initcall level (module_init) 147 in not early enough in the boot process to avoid the watchdog 148 to be triggered. 149 If you say yes here, the initcall level would be raised to 150 arch_initcall. 151 If in doubt, say N. 152 153config MENF21BMC_WATCHDOG 154 tristate "MEN 14F021P00 BMC Watchdog" 155 depends on MFD_MENF21BMC || COMPILE_TEST 156 depends on I2C 157 select WATCHDOG_CORE 158 help 159 Say Y here to include support for the MEN 14F021P00 BMC Watchdog. 160 161 This driver can also be built as a module. If so the module 162 will be called menf21bmc_wdt. 163 164config TANGOX_WATCHDOG 165 tristate "Sigma Designs SMP86xx/SMP87xx watchdog" 166 select WATCHDOG_CORE 167 depends on ARCH_TANGO || COMPILE_TEST 168 depends on HAS_IOMEM 169 help 170 Support for the watchdog in Sigma Designs SMP86xx (tango3) 171 and SMP87xx (tango4) family chips. 172 173 This driver can be built as a module. The module name is tangox_wdt. 174 175config WDAT_WDT 176 tristate "ACPI Watchdog Action Table (WDAT)" 177 depends on ACPI 178 select WATCHDOG_CORE 179 select ACPI_WATCHDOG 180 help 181 This driver adds support for systems with ACPI Watchdog Action 182 Table (WDAT) table. Servers typically have this but it can be 183 found on some desktop machines as well. This driver will take 184 over the native iTCO watchdog driver found on many Intel CPUs. 185 186 To compile this driver as module, choose M here: the module will 187 be called wdat_wdt. 188 189config WM831X_WATCHDOG 190 tristate "WM831x watchdog" 191 depends on MFD_WM831X 192 select WATCHDOG_CORE 193 help 194 Support for the watchdog in the WM831x AudioPlus PMICs. When 195 the watchdog triggers the system will be reset. 196 197config WM8350_WATCHDOG 198 tristate "WM8350 watchdog" 199 depends on MFD_WM8350 200 select WATCHDOG_CORE 201 help 202 Support for the watchdog in the WM8350 AudioPlus PMIC. When 203 the watchdog triggers the system will be reset. 204 205config XILINX_WATCHDOG 206 tristate "Xilinx Watchdog timer" 207 depends on HAS_IOMEM 208 select WATCHDOG_CORE 209 help 210 Watchdog driver for the xps_timebase_wdt ip core. 211 212 To compile this driver as a module, choose M here: the 213 module will be called of_xilinx_wdt. 214 215config ZIIRAVE_WATCHDOG 216 tristate "Zodiac RAVE Watchdog Timer" 217 depends on I2C 218 select WATCHDOG_CORE 219 help 220 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog 221 Processor. 222 223 To compile this driver as a module, choose M here: the 224 module will be called ziirave_wdt. 225 226config RAVE_SP_WATCHDOG 227 tristate "RAVE SP Watchdog timer" 228 depends on RAVE_SP_CORE 229 depends on NVMEM || !NVMEM 230 select WATCHDOG_CORE 231 help 232 Support for the watchdog on RAVE SP device. 233 234# ALPHA Architecture 235 236# ARM Architecture 237 238config ARM_SP805_WATCHDOG 239 tristate "ARM SP805 Watchdog" 240 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA 241 select WATCHDOG_CORE 242 help 243 ARM Primecell SP805 Watchdog timer. This will reboot your system when 244 the timeout is reached. 245 246config ARM_SBSA_WATCHDOG 247 tristate "ARM SBSA Generic Watchdog" 248 depends on ARM64 249 depends on ARM_ARCH_TIMER 250 select WATCHDOG_CORE 251 help 252 ARM SBSA Generic Watchdog has two stage timeouts: 253 the first signal (WS0) is for alerting the system by interrupt, 254 the second one (WS1) is a real hardware reset. 255 More details: ARM DEN0029B - Server Base System Architecture (SBSA) 256 257 This driver can operate ARM SBSA Generic Watchdog as a single stage 258 or a two stages watchdog, it depends on the module parameter "action". 259 260 Note: the maximum timeout in the two stages mode is half of that in 261 the single stage mode. 262 263 To compile this driver as module, choose M here: The module 264 will be called sbsa_gwdt. 265 266config ASM9260_WATCHDOG 267 tristate "Alphascale ASM9260 watchdog" 268 depends on MACH_ASM9260 || COMPILE_TEST 269 depends on OF 270 select WATCHDOG_CORE 271 select RESET_CONTROLLER 272 help 273 Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your 274 system when the timeout is reached. 275 276config AT91RM9200_WATCHDOG 277 tristate "AT91RM9200 watchdog" 278 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST 279 help 280 Watchdog timer embedded into AT91RM9200 chips. This will reboot your 281 system when the timeout is reached. 282 283config AT91SAM9X_WATCHDOG 284 tristate "AT91SAM9X / AT91CAP9 watchdog" 285 depends on ARCH_AT91 || COMPILE_TEST 286 select WATCHDOG_CORE 287 help 288 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will 289 reboot your system when the timeout is reached. 290 291config SAMA5D4_WATCHDOG 292 tristate "Atmel SAMA5D4 Watchdog Timer" 293 depends on ARCH_AT91 || COMPILE_TEST 294 select WATCHDOG_CORE 295 help 296 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips. 297 Its Watchdog Timer Mode Register can be written more than once. 298 This will reboot your system when the timeout is reached. 299 300config CADENCE_WATCHDOG 301 tristate "Cadence Watchdog Timer" 302 depends on HAS_IOMEM 303 select WATCHDOG_CORE 304 help 305 Say Y here if you want to include support for the watchdog 306 timer in the Xilinx Zynq. 307 308config 21285_WATCHDOG 309 tristate "DC21285 watchdog" 310 depends on FOOTBRIDGE 311 help 312 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y 313 here if you wish to use this. Alternatively say M to compile the 314 driver as a module, which will be called wdt285. 315 316 This driver does not work on all machines. In particular, early CATS 317 boards have hardware problems that will cause the machine to simply 318 lock up if the watchdog fires. 319 320 "If in doubt, leave it out" - say N. 321 322config 977_WATCHDOG 323 tristate "NetWinder WB83C977 watchdog" 324 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST) 325 help 326 Say Y here to include support for the WB977 watchdog included in 327 NetWinder machines. Alternatively say M to compile the driver as 328 a module, which will be called wdt977. 329 330 Not sure? It's safe to say N. 331 332config FTWDT010_WATCHDOG 333 tristate "Faraday Technology FTWDT010 watchdog" 334 depends on ARM || COMPILE_TEST 335 select WATCHDOG_CORE 336 default ARCH_GEMINI 337 help 338 Say Y here if to include support for the Faraday Technology 339 FTWDT010 watchdog timer embedded in the Cortina Systems Gemini 340 family of devices. 341 342 To compile this driver as a module, choose M here: the 343 module will be called ftwdt010_wdt. 344 345config IXP4XX_WATCHDOG 346 tristate "IXP4xx Watchdog" 347 depends on ARCH_IXP4XX 348 help 349 Say Y here if to include support for the watchdog timer 350 in the Intel IXP4xx network processors. This driver can 351 be built as a module by choosing M. The module will 352 be called ixp4xx_wdt. 353 354 Note: The internal IXP4xx watchdog does a soft CPU reset 355 which doesn't reset any peripherals. There are circumstances 356 where the watchdog will fail to reset the board correctly 357 (e.g., if the boot ROM is in an unreadable state). 358 359 Say N if you are unsure. 360 361config KS8695_WATCHDOG 362 tristate "KS8695 watchdog" 363 depends on ARCH_KS8695 364 help 365 Watchdog timer embedded into KS8695 processor. This will reboot your 366 system when the timeout is reached. 367 368config HAVE_S3C2410_WATCHDOG 369 bool 370 help 371 This will include watchdog timer support for Samsung SoCs. If 372 you want to include watchdog support for any machine, kindly 373 select this in the respective mach-XXXX/Kconfig file. 374 375config S3C2410_WATCHDOG 376 tristate "S3C2410 Watchdog" 377 depends on HAVE_S3C2410_WATCHDOG || COMPILE_TEST 378 select WATCHDOG_CORE 379 select MFD_SYSCON if ARCH_EXYNOS 380 help 381 Watchdog timer block in the Samsung SoCs. This will reboot 382 the system when the timer expires with the watchdog enabled. 383 384 The driver is limited by the speed of the system's PCLK 385 signal, so with reasonably fast systems (PCLK around 50-66MHz) 386 then watchdog intervals of over approximately 20seconds are 387 unavailable. 388 389 The driver can be built as a module by choosing M, and will 390 be called s3c2410_wdt 391 392config SA1100_WATCHDOG 393 tristate "SA1100/PXA2xx watchdog" 394 depends on ARCH_SA1100 || ARCH_PXA 395 help 396 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 397 reboot your system when timeout is reached. 398 399 NOTE: once enabled, this timer cannot be disabled. 400 401 To compile this driver as a module, choose M here: the 402 module will be called sa1100_wdt. 403 404config DW_WATCHDOG 405 tristate "Synopsys DesignWare watchdog" 406 depends on HAS_IOMEM 407 select WATCHDOG_CORE 408 help 409 Say Y here if to include support for the Synopsys DesignWare 410 watchdog timer found in many chips. 411 To compile this driver as a module, choose M here: the 412 module will be called dw_wdt. 413 414config EP93XX_WATCHDOG 415 tristate "EP93xx Watchdog" 416 depends on ARCH_EP93XX || COMPILE_TEST 417 select WATCHDOG_CORE 418 help 419 Say Y here if to include support for the watchdog timer 420 embedded in the Cirrus Logic EP93xx family of devices. 421 422 To compile this driver as a module, choose M here: the 423 module will be called ep93xx_wdt. 424 425config OMAP_WATCHDOG 426 tristate "OMAP Watchdog" 427 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST 428 select WATCHDOG_CORE 429 help 430 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y' 431 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 432 433config PNX4008_WATCHDOG 434 tristate "LPC32XX Watchdog" 435 depends on ARCH_LPC32XX 436 select WATCHDOG_CORE 437 help 438 Say Y here if to include support for the watchdog timer 439 in the LPC32XX processor. 440 This driver can be built as a module by choosing M. The module 441 will be called pnx4008_wdt. 442 443 Say N if you are unsure. 444 445config IOP_WATCHDOG 446 tristate "IOP Watchdog" 447 depends on ARCH_IOP13XX 448 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X) 449 help 450 Say Y here if to include support for the watchdog timer 451 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can 452 be built as a module by choosing M. The module will 453 be called iop_wdt. 454 455 Note: The IOP13XX watchdog does an Internal Bus Reset which will 456 affect both cores and the peripherals of the IOP. The ATU-X 457 and/or ATUe configuration registers will remain intact, but if 458 operating as an Root Complex and/or Central Resource, the PCI-X 459 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER. 460 461config DAVINCI_WATCHDOG 462 tristate "DaVinci watchdog" 463 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST 464 select WATCHDOG_CORE 465 help 466 Say Y here if to include support for the watchdog timer 467 in the DaVinci DM644x/DM646x or Keystone processors. 468 To compile this driver as a module, choose M here: the 469 module will be called davinci_wdt. 470 471 NOTE: once enabled, this timer cannot be disabled. 472 Say N if you are unsure. 473 474config ORION_WATCHDOG 475 tristate "Orion watchdog" 476 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || (COMPILE_TEST && !ARCH_EBSA110) 477 depends on ARM 478 select WATCHDOG_CORE 479 help 480 Say Y here if to include support for the watchdog timer 481 in the Marvell Orion5x and Kirkwood ARM SoCs. 482 To compile this driver as a module, choose M here: the 483 module will be called orion_wdt. 484 485config RN5T618_WATCHDOG 486 tristate "Ricoh RN5T618 watchdog" 487 depends on MFD_RN5T618 || COMPILE_TEST 488 select WATCHDOG_CORE 489 help 490 If you say yes here you get support for watchdog on the Ricoh 491 RN5T618 PMIC. 492 493 This driver can also be built as a module. If so, the module 494 will be called rn5t618_wdt. 495 496config SUNXI_WATCHDOG 497 tristate "Allwinner SoCs watchdog support" 498 depends on ARCH_SUNXI || COMPILE_TEST 499 select WATCHDOG_CORE 500 help 501 Say Y here to include support for the watchdog timer 502 in Allwinner SoCs. 503 To compile this driver as a module, choose M here: the 504 module will be called sunxi_wdt. 505 506config COH901327_WATCHDOG 507 bool "ST-Ericsson COH 901 327 watchdog" 508 depends on ARCH_U300 || (ARM && COMPILE_TEST) 509 default y if MACH_U300 510 select WATCHDOG_CORE 511 help 512 Say Y here to include Watchdog timer support for the 513 watchdog embedded into the ST-Ericsson U300 series platforms. 514 This watchdog is used to reset the system and thus cannot be 515 compiled as a module. 516 517config TWL4030_WATCHDOG 518 tristate "TWL4030 Watchdog" 519 depends on TWL4030_CORE 520 select WATCHDOG_CORE 521 help 522 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 523 watchdog timer support for TWL4030 chips. 524 525config STMP3XXX_RTC_WATCHDOG 526 tristate "Freescale STMP3XXX & i.MX23/28 watchdog" 527 depends on RTC_DRV_STMP || COMPILE_TEST 528 select WATCHDOG_CORE 529 help 530 Say Y here to include support for the watchdog timer inside 531 the RTC for the STMP37XX/378X or i.MX23/28 SoC. 532 To compile this driver as a module, choose M here: the 533 module will be called stmp3xxx_rtc_wdt. 534 535config NUC900_WATCHDOG 536 tristate "Nuvoton NUC900 watchdog" 537 depends on ARCH_W90X900 || COMPILE_TEST 538 help 539 Say Y here if to include support for the watchdog timer 540 for the Nuvoton NUC900 series SoCs. 541 To compile this driver as a module, choose M here: the 542 module will be called nuc900_wdt. 543 544config TS4800_WATCHDOG 545 tristate "TS-4800 Watchdog" 546 depends on HAS_IOMEM && OF 547 depends on SOC_IMX51 || COMPILE_TEST 548 select WATCHDOG_CORE 549 select MFD_SYSCON 550 help 551 Technologic Systems TS-4800 has watchdog timer implemented in 552 an external FPGA. Say Y here if you want to support for the 553 watchdog timer on TS-4800 board. 554 555config TS72XX_WATCHDOG 556 tristate "TS-72XX SBC Watchdog" 557 depends on MACH_TS72XX || COMPILE_TEST 558 help 559 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 560 watchdog timer implemented in a external CPLD chip. Say Y here 561 if you want to support for the watchdog timer on TS-72XX boards. 562 563 To compile this driver as a module, choose M here: the 564 module will be called ts72xx_wdt. 565 566config MAX63XX_WATCHDOG 567 tristate "Max63xx watchdog" 568 depends on HAS_IOMEM 569 select WATCHDOG_CORE 570 help 571 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 572 573config MAX77620_WATCHDOG 574 tristate "Maxim Max77620 Watchdog Timer" 575 depends on MFD_MAX77620 || COMPILE_TEST 576 help 577 This is the driver for the Max77620 watchdog timer. 578 Say 'Y' here to enable the watchdog timer support for 579 MAX77620 chips. To compile this driver as a module, 580 choose M here: the module will be called max77620_wdt. 581 582config IMX2_WDT 583 tristate "IMX2+ Watchdog" 584 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST 585 select REGMAP_MMIO 586 select WATCHDOG_CORE 587 help 588 This is the driver for the hardware watchdog 589 on the Freescale IMX2 and later processors. 590 If you have one of these processors and wish to have 591 watchdog support enabled, say Y, otherwise say N. 592 593 To compile this driver as a module, choose M here: the 594 module will be called imx2_wdt. 595 596config UX500_WATCHDOG 597 tristate "ST-Ericsson Ux500 watchdog" 598 depends on MFD_DB8500_PRCMU 599 select WATCHDOG_CORE 600 default y 601 help 602 Say Y here to include Watchdog timer support for the watchdog 603 existing in the prcmu of ST-Ericsson Ux500 series platforms. 604 605 To compile this driver as a module, choose M here: the 606 module will be called ux500_wdt. 607 608config RETU_WATCHDOG 609 tristate "Retu watchdog" 610 depends on MFD_RETU 611 select WATCHDOG_CORE 612 help 613 Retu watchdog driver for Nokia Internet Tablets (770, N800, 614 N810). At least on N800 the watchdog cannot be disabled, so 615 this driver is essential and you should enable it. 616 617 To compile this driver as a module, choose M here: the 618 module will be called retu_wdt. 619 620config MOXART_WDT 621 tristate "MOXART watchdog" 622 depends on ARCH_MOXART || COMPILE_TEST 623 help 624 Say Y here to include Watchdog timer support for the watchdog 625 existing on the MOXA ART SoC series platforms. 626 627 To compile this driver as a module, choose M here: the 628 module will be called moxart_wdt. 629 630config SIRFSOC_WATCHDOG 631 tristate "SiRFSOC watchdog" 632 depends on ARCH_SIRF || COMPILE_TEST 633 select WATCHDOG_CORE 634 default y 635 help 636 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When 637 the watchdog triggers the system will be reset. 638 639config ST_LPC_WATCHDOG 640 tristate "STMicroelectronics LPC Watchdog" 641 depends on ARCH_STI || COMPILE_TEST 642 depends on OF 643 select WATCHDOG_CORE 644 help 645 Say Y here to include STMicroelectronics Low Power Controller 646 (LPC) based Watchdog timer support. 647 648 To compile this driver as a module, choose M here: the 649 module will be called st_lpc_wdt. 650 651config TEGRA_WATCHDOG 652 tristate "Tegra watchdog" 653 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM 654 select WATCHDOG_CORE 655 help 656 Say Y here to include support for the watchdog timer 657 embedded in NVIDIA Tegra SoCs. 658 659 To compile this driver as a module, choose M here: the 660 module will be called tegra_wdt. 661 662config QCOM_WDT 663 tristate "QCOM watchdog" 664 depends on HAS_IOMEM 665 depends on ARCH_QCOM || COMPILE_TEST 666 select WATCHDOG_CORE 667 help 668 Say Y here to include Watchdog timer support for the watchdog found 669 on QCOM chipsets. Currently supported targets are the MSM8960, 670 APQ8064, and IPQ8064. 671 672 To compile this driver as a module, choose M here: the 673 module will be called qcom_wdt. 674 675config MESON_GXBB_WATCHDOG 676 tristate "Amlogic Meson GXBB SoCs watchdog support" 677 depends on ARCH_MESON || COMPILE_TEST 678 select WATCHDOG_CORE 679 help 680 Say Y here to include support for the watchdog timer 681 in Amlogic Meson GXBB SoCs. 682 To compile this driver as a module, choose M here: the 683 module will be called meson_gxbb_wdt. 684 685config MESON_WATCHDOG 686 tristate "Amlogic Meson SoCs watchdog support" 687 depends on ARCH_MESON || COMPILE_TEST 688 select WATCHDOG_CORE 689 help 690 Say Y here to include support for the watchdog timer 691 in Amlogic Meson SoCs. 692 To compile this driver as a module, choose M here: the 693 module will be called meson_wdt. 694 695config MEDIATEK_WATCHDOG 696 tristate "Mediatek SoCs watchdog support" 697 depends on ARCH_MEDIATEK || COMPILE_TEST 698 select WATCHDOG_CORE 699 help 700 Say Y here to include support for the watchdog timer 701 in Mediatek SoCs. 702 To compile this driver as a module, choose M here: the 703 module will be called mtk_wdt. 704 705config DIGICOLOR_WATCHDOG 706 tristate "Conexant Digicolor SoCs watchdog support" 707 depends on ARCH_DIGICOLOR || COMPILE_TEST 708 select WATCHDOG_CORE 709 help 710 Say Y here to include support for the watchdog timer 711 in Conexant Digicolor SoCs. 712 To compile this driver as a module, choose M here: the 713 module will be called digicolor_wdt. 714 715config LPC18XX_WATCHDOG 716 tristate "LPC18xx/43xx Watchdog" 717 depends on ARCH_LPC18XX || COMPILE_TEST 718 depends on HAS_IOMEM 719 select WATCHDOG_CORE 720 help 721 Say Y here if to include support for the watchdog timer 722 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx 723 processors. 724 To compile this driver as a module, choose M here: the 725 module will be called lpc18xx_wdt. 726 727config ATLAS7_WATCHDOG 728 tristate "CSRatlas7 watchdog" 729 depends on ARCH_ATLAS7 || COMPILE_TEST 730 help 731 Say Y here to include Watchdog timer support for the watchdog 732 existing on the CSRatlas7 series platforms. 733 734 To compile this driver as a module, choose M here: the 735 module will be called atlas7_wdt. 736 737config RENESAS_WDT 738 tristate "Renesas WDT Watchdog" 739 depends on ARCH_RENESAS || COMPILE_TEST 740 select WATCHDOG_CORE 741 help 742 This driver adds watchdog support for the integrated watchdogs in the 743 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT). 744 745config RENESAS_RZAWDT 746 tristate "Renesas RZ/A WDT Watchdog" 747 depends on ARCH_RENESAS || COMPILE_TEST 748 select WATCHDOG_CORE 749 help 750 This driver adds watchdog support for the integrated watchdogs in the 751 Renesas RZ/A SoCs. These watchdogs can be used to reset a system. 752 753config ASPEED_WATCHDOG 754 tristate "Aspeed BMC watchdog support" 755 depends on ARCH_ASPEED || COMPILE_TEST 756 select WATCHDOG_CORE 757 help 758 Say Y here to include support for the watchdog timer 759 in Aspeed BMC SoCs. 760 761 This driver is required to reboot the SoC. 762 763 To compile this driver as a module, choose M here: the 764 module will be called aspeed_wdt. 765 766config ZX2967_WATCHDOG 767 tristate "ZTE zx2967 SoCs watchdog support" 768 depends on ARCH_ZX 769 select WATCHDOG_CORE 770 help 771 Say Y here to include support for the watchdog timer 772 in ZTE zx2967 SoCs. 773 To compile this driver as a module, choose M here: the 774 module will be called zx2967_wdt. 775 776config STM32_WATCHDOG 777 tristate "STM32 Independent WatchDoG (IWDG) support" 778 depends on ARCH_STM32 779 select WATCHDOG_CORE 780 default y 781 help 782 Say Y here to include support for the watchdog timer 783 in stm32 SoCs. 784 785 To compile this driver as a module, choose M here: the 786 module will be called stm32_iwdg. 787 788config UNIPHIER_WATCHDOG 789 tristate "UniPhier watchdog support" 790 depends on ARCH_UNIPHIER || COMPILE_TEST 791 depends on OF && MFD_SYSCON 792 select WATCHDOG_CORE 793 help 794 Say Y here to include support watchdog timer embedded 795 into the UniPhier system. 796 797 To compile this driver as a module, choose M here: the 798 module will be called uniphier_wdt. 799 800config RTD119X_WATCHDOG 801 bool "Realtek RTD119x/RTD129x watchdog support" 802 depends on ARCH_REALTEK || COMPILE_TEST 803 depends on OF 804 select WATCHDOG_CORE 805 default ARCH_REALTEK 806 help 807 Say Y here to include support for the watchdog timer in 808 Realtek RTD1295 SoCs. 809 810config SPRD_WATCHDOG 811 tristate "Spreadtrum watchdog support" 812 depends on ARCH_SPRD || COMPILE_TEST 813 select WATCHDOG_CORE 814 help 815 Say Y here to include watchdog timer supported 816 by Spreadtrum system. 817 818# BLACKFIN Architecture 819 820config BFIN_WDT 821 tristate "Blackfin On-Chip Watchdog Timer" 822 depends on BLACKFIN 823 ---help--- 824 If you say yes here you will get support for the Blackfin On-Chip 825 Watchdog Timer. If you have one of these processors and wish to 826 have watchdog support enabled, say Y, otherwise say N. 827 828 To compile this driver as a module, choose M here: the 829 module will be called bfin_wdt. 830 831# X86 (i386 + ia64 + x86_64) Architecture 832 833config ACQUIRE_WDT 834 tristate "Acquire SBC Watchdog Timer" 835 depends on X86 836 ---help--- 837 This is the driver for the hardware watchdog on Single Board 838 Computers produced by Acquire Inc (and others). This watchdog 839 simply watches your kernel to make sure it doesn't freeze, and if 840 it does, it reboots your computer after a certain amount of time. 841 842 To compile this driver as a module, choose M here: the 843 module will be called acquirewdt. 844 845 Most people will say N. 846 847config ADVANTECH_WDT 848 tristate "Advantech SBC Watchdog Timer" 849 depends on X86 850 help 851 If you are configuring a Linux kernel for the Advantech single-board 852 computer, say `Y' here to support its built-in watchdog timer 853 feature. More information can be found at 854 <http://www.advantech.com.tw/products/> 855 856config ALIM1535_WDT 857 tristate "ALi M1535 PMU Watchdog Timer" 858 depends on X86 && PCI 859 ---help--- 860 This is the driver for the hardware watchdog on the ALi M1535 PMU. 861 862 To compile this driver as a module, choose M here: the 863 module will be called alim1535_wdt. 864 865 Most people will say N. 866 867config ALIM7101_WDT 868 tristate "ALi M7101 PMU Computer Watchdog" 869 depends on PCI 870 help 871 This is the driver for the hardware watchdog on the ALi M7101 PMU 872 as used in the x86 Cobalt servers and also found in some 873 SPARC Netra servers too. 874 875 To compile this driver as a module, choose M here: the 876 module will be called alim7101_wdt. 877 878 Most people will say N. 879 880config EBC_C384_WDT 881 tristate "WinSystems EBC-C384 Watchdog Timer" 882 depends on X86 && ISA_BUS_API 883 select WATCHDOG_CORE 884 help 885 Enables watchdog timer support for the watchdog timer on the 886 WinSystems EBC-C384 motherboard. The timeout may be configured via 887 the timeout module parameter. 888 889config F71808E_WDT 890 tristate "Fintek F718xx, F818xx Super I/O Watchdog" 891 depends on X86 892 help 893 This is the driver for the hardware watchdog on the Fintek F71808E, 894 F71862FG, F71868, F71869, F71882FG, F71889FG, F81865 and F81866 895 Super I/O controllers. 896 897 You can compile this driver directly into the kernel, or use 898 it as a module. The module will be called f71808e_wdt. 899 900config SP5100_TCO 901 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 902 depends on X86 && PCI 903 select WATCHDOG_CORE 904 ---help--- 905 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 906 (Total Cost of Ownership) timer is a watchdog timer that will reboot 907 the machine after its expiration. The expiration time can be 908 configured with the "heartbeat" parameter. 909 910 To compile this driver as a module, choose M here: the 911 module will be called sp5100_tco. 912 913config GEODE_WDT 914 tristate "AMD Geode CS5535/CS5536 Watchdog" 915 depends on CS5535_MFGPT 916 help 917 This driver enables a watchdog capability built into the 918 CS5535/CS5536 companion chips for the AMD Geode GX and LX 919 processors. This watchdog watches your kernel to make sure 920 it doesn't freeze, and if it does, it reboots your computer after 921 a certain amount of time. 922 923 You can compile this driver directly into the kernel, or use 924 it as a module. The module will be called geodewdt. 925 926config SC520_WDT 927 tristate "AMD Elan SC520 processor Watchdog" 928 depends on MELAN || COMPILE_TEST 929 help 930 This is the driver for the hardware watchdog built in to the 931 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 932 This watchdog simply watches your kernel to make sure it doesn't 933 freeze, and if it does, it reboots your computer after a certain 934 amount of time. 935 936 You can compile this driver directly into the kernel, or use 937 it as a module. The module will be called sc520_wdt. 938 939config SBC_FITPC2_WATCHDOG 940 tristate "Compulab SBC-FITPC2 watchdog" 941 depends on X86 942 ---help--- 943 This is the driver for the built-in watchdog timer on the fit-PC2, 944 fit-PC2i, CM-iAM single-board computers made by Compulab. 945 946 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux. 947 When "Watchdog Timer Value" enabled one can set 31-255 s operational range. 948 949 Entering BIOS setup temporary disables watchdog operation regardless to current state, 950 so system will not be restarted while user in BIOS setup. 951 952 Once watchdog was enabled the system will be restarted every 953 "Watchdog Timer Value" period, so to prevent it user can restart or 954 disable the watchdog. 955 956 To compile this driver as a module, choose M here: the 957 module will be called sbc_fitpc2_wdt. 958 959 Most people will say N. 960 961config EUROTECH_WDT 962 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 963 depends on X86 964 help 965 Enable support for the watchdog timer on the Eurotech CPU-1220 and 966 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 967 information are at <http://www.eurotech.it/>. 968 969config IB700_WDT 970 tristate "IB700 SBC Watchdog Timer" 971 depends on X86 972 ---help--- 973 This is the driver for the hardware watchdog on the IB700 Single 974 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog 975 simply watches your kernel to make sure it doesn't freeze, and if 976 it does, it reboots your computer after a certain amount of time. 977 978 This driver is like the WDT501 driver but for slightly different hardware. 979 980 To compile this driver as a module, choose M here: the 981 module will be called ib700wdt. 982 983 Most people will say N. 984 985config IBMASR 986 tristate "IBM Automatic Server Restart" 987 depends on X86 988 help 989 This is the driver for the IBM Automatic Server Restart watchdog 990 timer built-in into some eServer xSeries machines. 991 992 To compile this driver as a module, choose M here: the 993 module will be called ibmasr. 994 995config WAFER_WDT 996 tristate "ICP Single Board Computer Watchdog Timer" 997 depends on X86 998 help 999 This is a driver for the hardware watchdog on the ICP Single 1000 Board Computer. This driver is working on (at least) the following 1001 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 1002 1003 To compile this driver as a module, choose M here: the 1004 module will be called wafer5823wdt. 1005 1006config I6300ESB_WDT 1007 tristate "Intel 6300ESB Timer/Watchdog" 1008 depends on PCI 1009 select WATCHDOG_CORE 1010 ---help--- 1011 Hardware driver for the watchdog timer built into the Intel 1012 6300ESB controller hub. 1013 1014 To compile this driver as a module, choose M here: the 1015 module will be called i6300esb. 1016 1017config IE6XX_WDT 1018 tristate "Intel Atom E6xx Watchdog" 1019 depends on X86 && PCI 1020 select WATCHDOG_CORE 1021 select MFD_CORE 1022 select LPC_SCH 1023 ---help--- 1024 Hardware driver for the watchdog timer built into the Intel 1025 Atom E6XX (TunnelCreek) processor. 1026 1027 To compile this driver as a module, choose M here: the 1028 module will be called ie6xx_wdt. 1029 1030config INTEL_SCU_WATCHDOG 1031 bool "Intel SCU Watchdog for Mobile Platforms" 1032 depends on X86_INTEL_MID 1033 ---help--- 1034 Hardware driver for the watchdog time built into the Intel SCU 1035 for Intel Mobile Platforms. 1036 1037 To compile this driver as a module, choose M here. 1038 1039config INTEL_MID_WATCHDOG 1040 tristate "Intel MID Watchdog Timer" 1041 depends on X86_INTEL_MID 1042 select WATCHDOG_CORE 1043 ---help--- 1044 Watchdog timer driver built into the Intel SCU for Intel MID 1045 Platforms. 1046 1047 This driver currently supports only the watchdog evolution 1048 implementation in SCU, available for Merrifield generation. 1049 1050 To compile this driver as a module, choose M here. 1051 1052config ITCO_WDT 1053 tristate "Intel TCO Timer/Watchdog" 1054 depends on (X86 || IA64) && PCI 1055 select WATCHDOG_CORE 1056 depends on I2C || I2C=n 1057 select LPC_ICH if !EXPERT 1058 select I2C_I801 if !EXPERT && I2C 1059 ---help--- 1060 Hardware driver for the intel TCO timer based watchdog devices. 1061 These drivers are included in the Intel 82801 I/O Controller 1062 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 1063 controller hub. 1064 1065 The TCO (Total Cost of Ownership) timer is a watchdog timer 1066 that will reboot the machine after its second expiration. The 1067 expiration time can be configured with the "heartbeat" parameter. 1068 1069 On some motherboards the driver may fail to reset the chipset's 1070 NO_REBOOT flag which prevents the watchdog from rebooting the 1071 machine. If this is the case you will get a kernel message like 1072 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1073 1074 To compile this driver as a module, choose M here: the 1075 module will be called iTCO_wdt. 1076 1077config ITCO_VENDOR_SUPPORT 1078 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 1079 depends on ITCO_WDT 1080 ---help--- 1081 Add vendor specific support to the intel TCO timer based watchdog 1082 devices. At this moment we only have additional support for some 1083 SuperMicro Inc. motherboards. 1084 1085config IT8712F_WDT 1086 tristate "IT8712F (Smart Guardian) Watchdog Timer" 1087 depends on X86 1088 ---help--- 1089 This is the driver for the built-in watchdog timer on the IT8712F 1090 Super I/0 chipset used on many motherboards. 1091 1092 If the driver does not work, then make sure that the game port in 1093 the BIOS is enabled. 1094 1095 To compile this driver as a module, choose M here: the 1096 module will be called it8712f_wdt. 1097 1098config IT87_WDT 1099 tristate "IT87 Watchdog Timer" 1100 depends on X86 1101 select WATCHDOG_CORE 1102 ---help--- 1103 This is the driver for the hardware watchdog on the ITE IT8607, 1104 IT8620, IT8622, IT8625, IT8628, IT8655, IT8665, IT8686, IT8702, 1105 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726, IT8728, and 1106 IT8783 Super I/O chips. 1107 1108 This watchdog simply watches your kernel to make sure it doesn't 1109 freeze, and if it does, it reboots your computer after a certain 1110 amount of time. 1111 1112 To compile this driver as a module, choose M here: the module will 1113 be called it87_wdt. 1114 1115config HP_WATCHDOG 1116 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 1117 depends on X86 && PCI 1118 help 1119 A software monitoring watchdog and NMI sourcing driver. This driver 1120 will detect lockups and provide a stack trace. This is a driver that 1121 will only load on an HP ProLiant system with a minimum of iLO2 support. 1122 To compile this driver as a module, choose M here: the module will be 1123 called hpwdt. 1124 1125config KEMPLD_WDT 1126 tristate "Kontron COM Watchdog Timer" 1127 depends on MFD_KEMPLD 1128 select WATCHDOG_CORE 1129 help 1130 Support for the PLD watchdog on some Kontron ETX and COMexpress 1131 (ETXexpress) modules 1132 1133 This driver can also be built as a module. If so, the module will be 1134 called kempld_wdt. 1135 1136config HPWDT_NMI_DECODING 1137 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 1138 depends on HP_WATCHDOG 1139 default y 1140 help 1141 When an NMI occurs this feature will make the necessary BIOS calls to 1142 log the cause of the NMI. 1143 1144config SC1200_WDT 1145 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 1146 depends on X86 1147 help 1148 This is a driver for National Semiconductor PC87307/PC97307 hardware 1149 watchdog cards as found on the SC1200. This watchdog is mainly used 1150 for power management purposes and can be used to power down the device 1151 during inactivity periods (includes interrupt activity monitoring). 1152 1153 To compile this driver as a module, choose M here: the 1154 module will be called sc1200wdt. 1155 1156 Most people will say N. 1157 1158config SCx200_WDT 1159 tristate "National Semiconductor SCx200 Watchdog" 1160 depends on SCx200 && PCI 1161 help 1162 Enable the built-in watchdog timer support on the National 1163 Semiconductor SCx200 processors. 1164 1165 If compiled as a module, it will be called scx200_wdt. 1166 1167config PC87413_WDT 1168 tristate "NS PC87413 watchdog" 1169 depends on X86 1170 ---help--- 1171 This is the driver for the hardware watchdog on the PC87413 chipset 1172 This watchdog simply watches your kernel to make sure it doesn't 1173 freeze, and if it does, it reboots your computer after a certain 1174 amount of time. 1175 1176 To compile this driver as a module, choose M here: the 1177 module will be called pc87413_wdt. 1178 1179 Most people will say N. 1180 1181config NV_TCO 1182 tristate "nVidia TCO Timer/Watchdog" 1183 depends on X86 && PCI 1184 ---help--- 1185 Hardware driver for the TCO timer built into the nVidia Hub family 1186 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 1187 watchdog timer that will reboot the machine after its second 1188 expiration. The expiration time can be configured with the 1189 "heartbeat" parameter. 1190 1191 On some motherboards the driver may fail to reset the chipset's 1192 NO_REBOOT flag which prevents the watchdog from rebooting the 1193 machine. If this is the case you will get a kernel message like 1194 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1195 1196 To compile this driver as a module, choose M here: the 1197 module will be called nv_tco. 1198 1199config RDC321X_WDT 1200 tristate "RDC R-321x SoC watchdog" 1201 depends on X86_RDC321X || COMPILE_TEST 1202 depends on PCI 1203 help 1204 This is the driver for the built in hardware watchdog 1205 in the RDC R-321x SoC. 1206 1207 To compile this driver as a module, choose M here: the 1208 module will be called rdc321x_wdt. 1209 1210config 60XX_WDT 1211 tristate "SBC-60XX Watchdog Timer" 1212 depends on X86 1213 help 1214 This driver can be used with the watchdog timer found on some 1215 single board computers, namely the 6010 PII based computer. 1216 It may well work with other cards. It reads port 0x443 to enable 1217 and re-set the watchdog timer, and reads port 0x45 to disable 1218 the watchdog. If you have a card that behave in similar ways, 1219 you can probably make this driver work with your card as well. 1220 1221 You can compile this driver directly into the kernel, or use 1222 it as a module. The module will be called sbc60xxwdt. 1223 1224config SBC8360_WDT 1225 tristate "SBC8360 Watchdog Timer" 1226 depends on X86_32 1227 ---help--- 1228 1229 This is the driver for the hardware watchdog on the SBC8360 Single 1230 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 1231 1232 To compile this driver as a module, choose M here: the 1233 module will be called sbc8360. 1234 1235 Most people will say N. 1236 1237config SBC7240_WDT 1238 tristate "SBC Nano 7240 Watchdog Timer" 1239 depends on X86_32 && !UML 1240 ---help--- 1241 This is the driver for the hardware watchdog found on the IEI 1242 single board computers EPIC Nano 7240 (and likely others). This 1243 watchdog simply watches your kernel to make sure it doesn't freeze, 1244 and if it does, it reboots your computer after a certain amount of 1245 time. 1246 1247 To compile this driver as a module, choose M here: the 1248 module will be called sbc7240_wdt. 1249 1250config CPU5_WDT 1251 tristate "SMA CPU5 Watchdog" 1252 depends on X86 1253 ---help--- 1254 TBD. 1255 To compile this driver as a module, choose M here: the 1256 module will be called cpu5wdt. 1257 1258config SMSC_SCH311X_WDT 1259 tristate "SMSC SCH311X Watchdog Timer" 1260 depends on X86 1261 ---help--- 1262 This is the driver for the hardware watchdog timer on the 1263 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1264 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1265 serial ports). 1266 1267 To compile this driver as a module, choose M here: the 1268 module will be called sch311x_wdt. 1269 1270config SMSC37B787_WDT 1271 tristate "Winbond SMsC37B787 Watchdog Timer" 1272 depends on X86 1273 ---help--- 1274 This is the driver for the hardware watchdog component on the 1275 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1276 from Vision Systems and maybe others. 1277 1278 This watchdog simply watches your kernel to make sure it doesn't 1279 freeze, and if it does, it reboots your computer after a certain 1280 amount of time. 1281 1282 Usually a userspace daemon will notify the kernel WDT driver that 1283 userspace is still alive, at regular intervals. 1284 1285 To compile this driver as a module, choose M here: the 1286 module will be called smsc37b787_wdt. 1287 1288 Most people will say N. 1289 1290config VIA_WDT 1291 tristate "VIA Watchdog Timer" 1292 depends on X86 && PCI 1293 select WATCHDOG_CORE 1294 ---help--- 1295 This is the driver for the hardware watchdog timer on VIA 1296 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1297 1298 To compile this driver as a module, choose M here; the module 1299 will be called via_wdt. 1300 1301 Most people will say N. 1302 1303config W83627HF_WDT 1304 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1305 depends on X86 1306 select WATCHDOG_CORE 1307 ---help--- 1308 This is the driver for the hardware watchdog on the following 1309 Super I/O chips. 1310 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1311 W83637HF 1312 W83667HG/HG-B 1313 W83687THF 1314 W83697HF 1315 W83697UG 1316 NCT6775 1317 NCT6776 1318 NCT6779 1319 NCT6791 1320 NCT6792 1321 NCT6102D/04D/06D 1322 1323 This watchdog simply watches your kernel to make sure it doesn't 1324 freeze, and if it does, it reboots your computer after a certain 1325 amount of time. 1326 1327 To compile this driver as a module, choose M here: the 1328 module will be called w83627hf_wdt. 1329 1330 Most people will say N. 1331 1332config W83877F_WDT 1333 tristate "W83877F (EMACS) Watchdog Timer" 1334 depends on X86 1335 ---help--- 1336 This is the driver for the hardware watchdog on the W83877F chipset 1337 as used in EMACS PC-104 motherboards (and likely others). This 1338 watchdog simply watches your kernel to make sure it doesn't freeze, 1339 and if it does, it reboots your computer after a certain amount of 1340 time. 1341 1342 To compile this driver as a module, choose M here: the 1343 module will be called w83877f_wdt. 1344 1345 Most people will say N. 1346 1347config W83977F_WDT 1348 tristate "W83977F (PCM-5335) Watchdog Timer" 1349 depends on X86 1350 ---help--- 1351 This is the driver for the hardware watchdog on the W83977F I/O chip 1352 as used in AAEON's PCM-5335 SBC (and likely others). This 1353 watchdog simply watches your kernel to make sure it doesn't freeze, 1354 and if it does, it reboots your computer after a certain amount of 1355 time. 1356 1357 To compile this driver as a module, choose M here: the 1358 module will be called w83977f_wdt. 1359 1360config MACHZ_WDT 1361 tristate "ZF MachZ Watchdog" 1362 depends on X86 1363 ---help--- 1364 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1365 N. This is the driver for the watchdog timer built-in on that 1366 processor using ZF-Logic interface. This watchdog simply watches 1367 your kernel to make sure it doesn't freeze, and if it does, it 1368 reboots your computer after a certain amount of time. 1369 1370 To compile this driver as a module, choose M here: the 1371 module will be called machzwd. 1372 1373config SBC_EPX_C3_WATCHDOG 1374 tristate "Winsystems SBC EPX-C3 watchdog" 1375 depends on X86 1376 ---help--- 1377 This is the driver for the built-in watchdog timer on the EPX-C3 1378 Single-board computer made by Winsystems, Inc. 1379 1380 *Note*: This hardware watchdog is not probeable and thus there 1381 is no way to know if writing to its IO address will corrupt 1382 your system or have any real effect. The only way to be sure 1383 that this driver does what you want is to make sure you 1384 are running it on an EPX-C3 from Winsystems with the watchdog 1385 timer at IO address 0x1ee and 0x1ef. It will write to both those 1386 IO ports. Basically, the assumption is made that if you compile 1387 this driver into your kernel and/or load it as a module, that you 1388 know what you are doing and that you are in fact running on an 1389 EPX-C3 board! 1390 1391 To compile this driver as a module, choose M here: the 1392 module will be called sbc_epx_c3. 1393 1394config INTEL_MEI_WDT 1395 tristate "Intel MEI iAMT Watchdog" 1396 depends on INTEL_MEI && X86 1397 select WATCHDOG_CORE 1398 ---help--- 1399 A device driver for the Intel MEI iAMT watchdog. 1400 1401 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. 1402 Whenever the OS hangs or crashes, iAMT will send an event 1403 to any subscriber to this event. The watchdog doesn't reset the 1404 the platform. 1405 1406 To compile this driver as a module, choose M here: 1407 the module will be called mei_wdt. 1408 1409config NI903X_WDT 1410 tristate "NI 903x/913x Watchdog" 1411 depends on X86 && ACPI 1412 select WATCHDOG_CORE 1413 ---help--- 1414 This is the driver for the watchdog timer on the National Instruments 1415 903x/913x real-time controllers. 1416 1417 To compile this driver as a module, choose M here: the module will be 1418 called ni903x_wdt. 1419 1420config NIC7018_WDT 1421 tristate "NIC7018 Watchdog" 1422 depends on X86 && ACPI 1423 select WATCHDOG_CORE 1424 ---help--- 1425 Support for National Instruments NIC7018 Watchdog. 1426 1427 To compile this driver as a module, choose M here: the module will be 1428 called nic7018_wdt. 1429 1430# M68K Architecture 1431 1432config M54xx_WATCHDOG 1433 tristate "MCF54xx watchdog support" 1434 depends on M548x 1435 help 1436 To compile this driver as a module, choose M here: the 1437 module will be called m54xx_wdt. 1438 1439# MicroBlaze Architecture 1440 1441# MIPS Architecture 1442 1443config ATH79_WDT 1444 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1445 depends on ATH79 || (ARM && COMPILE_TEST) 1446 help 1447 Hardware driver for the built-in watchdog timer on the Atheros 1448 AR71XX/AR724X/AR913X SoCs. 1449 1450config BCM47XX_WDT 1451 tristate "Broadcom BCM47xx Watchdog Timer" 1452 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST 1453 select WATCHDOG_CORE 1454 help 1455 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1456 1457config RC32434_WDT 1458 tristate "IDT RC32434 SoC Watchdog Timer" 1459 depends on MIKROTIK_RB532 1460 help 1461 Hardware driver for the IDT RC32434 SoC built-in 1462 watchdog timer. 1463 1464 To compile this driver as a module, choose M here: the 1465 module will be called rc32434_wdt. 1466 1467config INDYDOG 1468 tristate "Indy/I2 Hardware Watchdog" 1469 depends on SGI_HAS_INDYDOG 1470 help 1471 Hardware driver for the Indy's/I2's watchdog. This is a 1472 watchdog timer that will reboot the machine after a 60 second 1473 timer expired and no process has written to /dev/watchdog during 1474 that time. 1475 1476config JZ4740_WDT 1477 tristate "Ingenic jz4740 SoC hardware watchdog" 1478 depends on MACH_JZ4740 || MACH_JZ4780 1479 select WATCHDOG_CORE 1480 help 1481 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1482 1483config WDT_MTX1 1484 tristate "MTX-1 Hardware Watchdog" 1485 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST) 1486 help 1487 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1488 will reboot the machine after a 100 seconds timer expired. 1489 1490config PNX833X_WDT 1491 tristate "PNX833x Hardware Watchdog" 1492 depends on SOC_PNX8335 1493 depends on BROKEN 1494 help 1495 Hardware driver for the PNX833x's watchdog. This is a 1496 watchdog timer that will reboot the machine after a programmable 1497 timer has expired and no process has written to /dev/watchdog during 1498 that time. 1499 1500config SIBYTE_WDOG 1501 tristate "Sibyte SoC hardware watchdog" 1502 depends on CPU_SB1 || (MIPS && COMPILE_TEST) 1503 help 1504 Watchdog driver for the built in watchdog hardware in Sibyte 1505 SoC processors. There are apparently two watchdog timers 1506 on such processors; this driver supports only the first one, 1507 because currently Linux only supports exporting one watchdog 1508 to userspace. 1509 1510 To compile this driver as a loadable module, choose M here. 1511 The module will be called sb_wdog. 1512 1513config AR7_WDT 1514 tristate "TI AR7 Watchdog Timer" 1515 depends on AR7 || (MIPS && COMPILE_TEST) 1516 help 1517 Hardware driver for the TI AR7 Watchdog Timer. 1518 1519config TXX9_WDT 1520 tristate "Toshiba TXx9 Watchdog Timer" 1521 depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST) 1522 select WATCHDOG_CORE 1523 help 1524 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1525 1526config OCTEON_WDT 1527 tristate "Cavium OCTEON SOC family Watchdog Timer" 1528 depends on CAVIUM_OCTEON_SOC 1529 default y 1530 select WATCHDOG_CORE 1531 select EXPORT_UASM if OCTEON_WDT = m 1532 help 1533 Hardware driver for OCTEON's on chip watchdog timer. 1534 Enables the watchdog for all cores running Linux. It 1535 installs a NMI handler and pokes the watchdog based on an 1536 interrupt. On first expiration of the watchdog, the 1537 interrupt handler pokes it. The second expiration causes an 1538 NMI that prints a message. The third expiration causes a 1539 global soft reset. 1540 1541 When userspace has /dev/watchdog open, no poking is done 1542 from the first interrupt, it is then only poked when the 1543 device is written. 1544 1545config BCM63XX_WDT 1546 tristate "Broadcom BCM63xx hardware watchdog" 1547 depends on BCM63XX 1548 help 1549 Watchdog driver for the built in watchdog hardware in Broadcom 1550 BCM63xx SoC. 1551 1552 To compile this driver as a loadable module, choose M here. 1553 The module will be called bcm63xx_wdt. 1554 1555config BCM2835_WDT 1556 tristate "Broadcom BCM2835 hardware watchdog" 1557 depends on ARCH_BCM2835 || (OF && COMPILE_TEST) 1558 select WATCHDOG_CORE 1559 help 1560 Watchdog driver for the built in watchdog hardware in Broadcom 1561 BCM2835 SoC. 1562 1563 To compile this driver as a loadable module, choose M here. 1564 The module will be called bcm2835_wdt. 1565 1566config BCM_KONA_WDT 1567 tristate "BCM Kona Watchdog" 1568 depends on ARCH_BCM_MOBILE || COMPILE_TEST 1569 select WATCHDOG_CORE 1570 help 1571 Support for the watchdog timer on the following Broadcom BCM281xx 1572 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1573 BCM28155 variants. 1574 1575 Say 'Y' or 'M' here to enable the driver. The module will be called 1576 bcm_kona_wdt. 1577 1578config BCM_KONA_WDT_DEBUG 1579 bool "DEBUGFS support for BCM Kona Watchdog" 1580 depends on BCM_KONA_WDT || COMPILE_TEST 1581 help 1582 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1583 access to the driver's internal data structures as well as watchdog 1584 timer hardware registres. 1585 1586 If in doubt, say 'N'. 1587 1588config BCM7038_WDT 1589 tristate "BCM7038 Watchdog" 1590 select WATCHDOG_CORE 1591 depends on HAS_IOMEM 1592 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST 1593 help 1594 Watchdog driver for the built-in hardware in Broadcom 7038 and 1595 later SoCs used in set-top boxes. BCM7038 was made public 1596 during the 2004 CES, and since then, many Broadcom chips use this 1597 watchdog block, including some cable modem chips. 1598 1599config IMGPDC_WDT 1600 tristate "Imagination Technologies PDC Watchdog Timer" 1601 depends on HAS_IOMEM 1602 depends on MIPS || COMPILE_TEST 1603 select WATCHDOG_CORE 1604 help 1605 Driver for Imagination Technologies PowerDown Controller 1606 Watchdog Timer. 1607 1608 To compile this driver as a loadable module, choose M here. 1609 The module will be called imgpdc_wdt. 1610 1611config LANTIQ_WDT 1612 tristate "Lantiq SoC watchdog" 1613 depends on LANTIQ 1614 help 1615 Hardware driver for the Lantiq SoC Watchdog Timer. 1616 1617config LOONGSON1_WDT 1618 tristate "Loongson1 SoC hardware watchdog" 1619 depends on MACH_LOONGSON32 1620 select WATCHDOG_CORE 1621 help 1622 Hardware driver for the Loongson1 SoC Watchdog Timer. 1623 1624config RALINK_WDT 1625 tristate "Ralink SoC watchdog" 1626 select WATCHDOG_CORE 1627 depends on RALINK 1628 help 1629 Hardware driver for the Ralink SoC Watchdog Timer. 1630 1631config MT7621_WDT 1632 tristate "Mediatek SoC watchdog" 1633 select WATCHDOG_CORE 1634 depends on SOC_MT7620 || SOC_MT7621 1635 help 1636 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer. 1637 1638config PIC32_WDT 1639 tristate "Microchip PIC32 hardware watchdog" 1640 select WATCHDOG_CORE 1641 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1642 help 1643 Watchdog driver for the built in watchdog hardware in a PIC32. 1644 1645 Configuration bits must be set appropriately for the watchdog to be 1646 controlled by this driver. 1647 1648 To compile this driver as a loadable module, choose M here. 1649 The module will be called pic32-wdt. 1650 1651config PIC32_DMT 1652 tristate "Microchip PIC32 Deadman Timer" 1653 select WATCHDOG_CORE 1654 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1655 help 1656 Watchdog driver for PIC32 instruction fetch counting timer. This specific 1657 timer is typically be used in misson critical and safety critical 1658 applications, where any single failure of the software functionality 1659 and sequencing must be detected. 1660 1661 To compile this driver as a loadable module, choose M here. 1662 The module will be called pic32-dmt. 1663 1664# PARISC Architecture 1665 1666# POWERPC Architecture 1667 1668config GEF_WDT 1669 tristate "GE Watchdog Timer" 1670 depends on GE_FPGA 1671 ---help--- 1672 Watchdog timer found in a number of GE single board computers. 1673 1674config MPC5200_WDT 1675 bool "MPC52xx Watchdog Timer" 1676 depends on PPC_MPC52xx || COMPILE_TEST 1677 help 1678 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 1679 1680config 8xxx_WDT 1681 tristate "MPC8xxx Platform Watchdog Timer" 1682 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x 1683 select WATCHDOG_CORE 1684 help 1685 This driver is for a SoC level watchdog that exists on some 1686 Freescale PowerPC processors. So far this driver supports: 1687 - MPC8xx watchdogs 1688 - MPC83xx watchdogs 1689 - MPC86xx watchdogs 1690 1691 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 1692 1693config MV64X60_WDT 1694 tristate "MV64X60 (Marvell Discovery) Watchdog Timer" 1695 depends on MV64X60 || COMPILE_TEST 1696 1697config PIKA_WDT 1698 tristate "PIKA FPGA Watchdog" 1699 depends on WARP || (PPC64 && COMPILE_TEST) 1700 default y 1701 help 1702 This enables the watchdog in the PIKA FPGA. Currently used on 1703 the Warp platform. 1704 1705config BOOKE_WDT 1706 tristate "PowerPC Book-E Watchdog Timer" 1707 depends on BOOKE || 4xx 1708 select WATCHDOG_CORE 1709 ---help--- 1710 Watchdog driver for PowerPC Book-E chips, such as the Freescale 1711 MPC85xx SOCs and the IBM PowerPC 440. 1712 1713 Please see Documentation/watchdog/watchdog-api.txt for 1714 more information. 1715 1716config BOOKE_WDT_DEFAULT_TIMEOUT 1717 int "PowerPC Book-E Watchdog Timer Default Timeout" 1718 depends on BOOKE_WDT 1719 default 38 if PPC_FSL_BOOK3E 1720 range 0 63 if PPC_FSL_BOOK3E 1721 default 3 if !PPC_FSL_BOOK3E 1722 range 0 3 if !PPC_FSL_BOOK3E 1723 help 1724 Select the default watchdog timer period to be used by the PowerPC 1725 Book-E watchdog driver. A watchdog "event" occurs when the bit 1726 position represented by this number transitions from zero to one. 1727 1728 For Freescale Book-E processors, this is a number between 0 and 63. 1729 For other Book-E processors, this is a number between 0 and 3. 1730 1731 The value can be overridden by the wdt_period command-line parameter. 1732 1733config MEN_A21_WDT 1734 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 1735 select WATCHDOG_CORE 1736 depends on GPIOLIB || COMPILE_TEST 1737 help 1738 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 1739 1740 The driver can also be built as a module. If so, the module will be 1741 called mena21_wdt. 1742 1743 If unsure select N here. 1744 1745# PPC64 Architecture 1746 1747config WATCHDOG_RTAS 1748 tristate "RTAS watchdog" 1749 depends on PPC_RTAS 1750 help 1751 This driver adds watchdog support for the RTAS watchdog. 1752 1753 To compile this driver as a module, choose M here. The module 1754 will be called wdrtas. 1755 1756# S390 Architecture 1757 1758config DIAG288_WATCHDOG 1759 tristate "System z diag288 Watchdog" 1760 depends on S390 1761 select WATCHDOG_CORE 1762 help 1763 IBM s/390 and zSeries machines running under z/VM 5.1 or later 1764 provide a virtual watchdog timer to their guest that cause a 1765 user define Control Program command to be executed after a 1766 timeout. 1767 LPAR provides a very similar interface. This driver handles 1768 both. 1769 1770 To compile this driver as a module, choose M here. The module 1771 will be called diag288_wdt. 1772 1773# SUPERH (sh + sh64) Architecture 1774 1775config SH_WDT 1776 tristate "SuperH Watchdog" 1777 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST) 1778 select WATCHDOG_CORE 1779 help 1780 This driver adds watchdog support for the integrated watchdog in the 1781 SuperH processors. If you have one of these processors and wish 1782 to have watchdog support enabled, say Y, otherwise say N. 1783 1784 As a side note, saying Y here will automatically boost HZ to 1000 1785 so that the timer has a chance to clear the overflow counter. On 1786 slower systems (such as the SH-2 and SH-3) this will likely yield 1787 some performance issues. As such, the WDT should be avoided here 1788 unless it is absolutely necessary. 1789 1790 To compile this driver as a module, choose M here: the 1791 module will be called shwdt. 1792 1793# SPARC Architecture 1794 1795# SPARC64 Architecture 1796 1797config WATCHDOG_CP1XXX 1798 tristate "CP1XXX Hardware Watchdog support" 1799 depends on SPARC64 && PCI 1800 ---help--- 1801 This is the driver for the hardware watchdog timers present on 1802 Sun Microsystems CompactPCI models CP1400 and CP1500. 1803 1804 To compile this driver as a module, choose M here: the 1805 module will be called cpwatchdog. 1806 1807 If you do not have a CompactPCI model CP1400 or CP1500, or 1808 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 1809 you should say N to this option. 1810 1811config WATCHDOG_RIO 1812 tristate "RIO Hardware Watchdog support" 1813 depends on SPARC64 && PCI 1814 help 1815 Say Y here to support the hardware watchdog capability on Sun RIO 1816 machines. The watchdog timeout period is normally one minute but 1817 can be changed with a boot-time parameter. 1818 1819config WATCHDOG_SUN4V 1820 tristate "Sun4v Watchdog support" 1821 select WATCHDOG_CORE 1822 depends on SPARC64 1823 help 1824 Say Y here to support the hypervisor watchdog capability embedded 1825 in the SPARC sun4v architecture. 1826 1827 To compile this driver as a module, choose M here. The module will 1828 be called sun4v_wdt. 1829 1830# XTENSA Architecture 1831 1832# Xen Architecture 1833 1834config XEN_WDT 1835 tristate "Xen Watchdog support" 1836 depends on XEN 1837 select WATCHDOG_CORE 1838 help 1839 Say Y here to support the hypervisor watchdog capability provided 1840 by Xen 4.0 and newer. The watchdog timeout period is normally one 1841 minute but can be changed with a boot-time parameter. 1842 1843config UML_WATCHDOG 1844 tristate "UML watchdog" 1845 depends on UML || COMPILE_TEST 1846 1847# 1848# ISA-based Watchdog Cards 1849# 1850 1851comment "ISA-based Watchdog Cards" 1852 depends on ISA 1853 1854config PCWATCHDOG 1855 tristate "Berkshire Products ISA-PC Watchdog" 1856 depends on ISA 1857 ---help--- 1858 This is the driver for the Berkshire Products ISA-PC Watchdog card. 1859 This card simply watches your kernel to make sure it doesn't freeze, 1860 and if it does, it reboots your computer after a certain amount of 1861 time. This driver is like the WDT501 driver but for different 1862 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC 1863 watchdog cards can be ordered from <http://www.berkprod.com/>. 1864 1865 To compile this driver as a module, choose M here: the 1866 module will be called pcwd. 1867 1868 Most people will say N. 1869 1870config MIXCOMWD 1871 tristate "Mixcom Watchdog" 1872 depends on ISA 1873 ---help--- 1874 This is a driver for the Mixcom hardware watchdog cards. This 1875 watchdog simply watches your kernel to make sure it doesn't freeze, 1876 and if it does, it reboots your computer after a certain amount of 1877 time. 1878 1879 To compile this driver as a module, choose M here: the 1880 module will be called mixcomwd. 1881 1882 Most people will say N. 1883 1884config WDT 1885 tristate "WDT Watchdog timer" 1886 depends on ISA 1887 ---help--- 1888 If you have a WDT500P or WDT501P watchdog board, say Y here, 1889 otherwise N. It is not possible to probe for this board, which means 1890 that you have to inform the kernel about the IO port and IRQ that 1891 is needed (you can do this via the io and irq parameters) 1892 1893 To compile this driver as a module, choose M here: the 1894 module will be called wdt. 1895 1896# 1897# PCI-based Watchdog Cards 1898# 1899 1900comment "PCI-based Watchdog Cards" 1901 depends on PCI 1902 1903config PCIPCWATCHDOG 1904 tristate "Berkshire Products PCI-PC Watchdog" 1905 depends on PCI 1906 ---help--- 1907 This is the driver for the Berkshire Products PCI-PC Watchdog card. 1908 This card simply watches your kernel to make sure it doesn't freeze, 1909 and if it does, it reboots your computer after a certain amount of 1910 time. The card can also monitor the internal temperature of the PC. 1911 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 1912 1913 To compile this driver as a module, choose M here: the 1914 module will be called pcwd_pci. 1915 1916 Most people will say N. 1917 1918config WDTPCI 1919 tristate "PCI-WDT500/501 Watchdog timer" 1920 depends on PCI 1921 ---help--- 1922 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 1923 1924 If you have a PCI-WDT501 watchdog board then you can enable the 1925 temperature sensor by setting the type parameter to 501. 1926 1927 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 1928 can do this via the tachometer parameter. Only do this if you have a 1929 fan tachometer actually set up. 1930 1931 To compile this driver as a module, choose M here: the 1932 module will be called wdt_pci. 1933 1934# 1935# USB-based Watchdog Cards 1936# 1937 1938comment "USB-based Watchdog Cards" 1939 depends on USB 1940 1941config USBPCWATCHDOG 1942 tristate "Berkshire Products USB-PC Watchdog" 1943 depends on USB 1944 ---help--- 1945 This is the driver for the Berkshire Products USB-PC Watchdog card. 1946 This card simply watches your kernel to make sure it doesn't freeze, 1947 and if it does, it reboots your computer after a certain amount of 1948 time. The card can also monitor the internal temperature of the PC. 1949 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 1950 1951 To compile this driver as a module, choose M here: the 1952 module will be called pcwd_usb. 1953 1954 Most people will say N. 1955 1956comment "Watchdog Pretimeout Governors" 1957 1958config WATCHDOG_PRETIMEOUT_GOV 1959 bool "Enable watchdog pretimeout governors" 1960 help 1961 The option allows to select watchdog pretimeout governors. 1962 1963if WATCHDOG_PRETIMEOUT_GOV 1964 1965choice 1966 prompt "Default Watchdog Pretimeout Governor" 1967 default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC 1968 help 1969 This option selects a default watchdog pretimeout governor. 1970 The governor takes its action, if a watchdog is capable 1971 to report a pretimeout event. 1972 1973config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP 1974 bool "noop" 1975 select WATCHDOG_PRETIMEOUT_GOV_NOOP 1976 help 1977 Use noop watchdog pretimeout governor by default. If noop 1978 governor is selected by a user, write a short message to 1979 the kernel log buffer and don't do any system changes. 1980 1981config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC 1982 bool "panic" 1983 select WATCHDOG_PRETIMEOUT_GOV_PANIC 1984 help 1985 Use panic watchdog pretimeout governor by default, if 1986 a watchdog pretimeout event happens, consider that 1987 a watchdog feeder is dead and reboot is unavoidable. 1988 1989endchoice 1990 1991config WATCHDOG_PRETIMEOUT_GOV_NOOP 1992 tristate "Noop watchdog pretimeout governor" 1993 help 1994 Noop watchdog pretimeout governor, only an informational 1995 message is added to kernel log buffer. 1996 1997config WATCHDOG_PRETIMEOUT_GOV_PANIC 1998 tristate "Panic watchdog pretimeout governor" 1999 help 2000 Panic watchdog pretimeout governor, on watchdog pretimeout 2001 event put the kernel into panic. 2002 2003endif # WATCHDOG_PRETIMEOUT_GOV 2004 2005endif # WATCHDOG 2006