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_SYSFS 50 bool "Read different watchdog information through sysfs" 51 help 52 Say Y here if you want to enable watchdog device status read through 53 sysfs attributes. 54 55# 56# General Watchdog drivers 57# 58 59comment "Watchdog Device Drivers" 60 61# Architecture Independent 62 63config SOFT_WATCHDOG 64 tristate "Software watchdog" 65 select WATCHDOG_CORE 66 help 67 A software monitoring watchdog. This will fail to reboot your system 68 from some situations that the hardware watchdog will recover 69 from. Equally it's a lot cheaper to install. 70 71 To compile this driver as a module, choose M here: the 72 module will be called softdog. 73 74config DA9052_WATCHDOG 75 tristate "Dialog DA9052 Watchdog" 76 depends on PMIC_DA9052 77 select WATCHDOG_CORE 78 help 79 Support for the watchdog in the DA9052 PMIC. Watchdog trigger 80 cause system reset. 81 82 Say Y here to include support for the DA9052 watchdog. 83 Alternatively say M to compile the driver as a module, 84 which will be called da9052_wdt. 85 86config DA9055_WATCHDOG 87 tristate "Dialog Semiconductor DA9055 Watchdog" 88 depends on MFD_DA9055 89 select WATCHDOG_CORE 90 help 91 If you say yes here you get support for watchdog on the Dialog 92 Semiconductor DA9055 PMIC. 93 94 This driver can also be built as a module. If so, the module 95 will be called da9055_wdt. 96 97config DA9063_WATCHDOG 98 tristate "Dialog DA9063 Watchdog" 99 depends on MFD_DA9063 100 select WATCHDOG_CORE 101 help 102 Support for the watchdog in the DA9063 PMIC. 103 104 This driver can be built as a module. The module name is da9063_wdt. 105 106config DA9062_WATCHDOG 107 tristate "Dialog DA9062 Watchdog" 108 depends on MFD_DA9062 109 select WATCHDOG_CORE 110 help 111 Support for the watchdog in the DA9062 PMIC. 112 113 This driver can be built as a module. The module name is da9062_wdt. 114 115config GPIO_WATCHDOG 116 tristate "Watchdog device controlled through GPIO-line" 117 depends on OF_GPIO 118 select WATCHDOG_CORE 119 help 120 If you say yes here you get support for watchdog device 121 controlled through GPIO-line. 122 123config GPIO_WATCHDOG_ARCH_INITCALL 124 bool "Register the watchdog as early as possible" 125 depends on GPIO_WATCHDOG=y 126 help 127 In some situations, the default initcall level (module_init) 128 in not early enough in the boot process to avoid the watchdog 129 to be triggered. 130 If you say yes here, the initcall level would be raised to 131 arch_initcall. 132 If in doubt, say N. 133 134config MENF21BMC_WATCHDOG 135 tristate "MEN 14F021P00 BMC Watchdog" 136 depends on MFD_MENF21BMC 137 select WATCHDOG_CORE 138 help 139 Say Y here to include support for the MEN 14F021P00 BMC Watchdog. 140 141 This driver can also be built as a module. If so the module 142 will be called menf21bmc_wdt. 143 144config TANGOX_WATCHDOG 145 tristate "Sigma Designs SMP86xx/SMP87xx watchdog" 146 select WATCHDOG_CORE 147 depends on ARCH_TANGO || COMPILE_TEST 148 depends on HAS_IOMEM 149 help 150 Support for the watchdog in Sigma Designs SMP86xx (tango3) 151 and SMP87xx (tango4) family chips. 152 153 This driver can be built as a module. The module name is tangox_wdt. 154 155config WDAT_WDT 156 tristate "ACPI Watchdog Action Table (WDAT)" 157 depends on ACPI 158 select WATCHDOG_CORE 159 select ACPI_WATCHDOG 160 help 161 This driver adds support for systems with ACPI Watchdog Action 162 Table (WDAT) table. Servers typically have this but it can be 163 found on some desktop machines as well. This driver will take 164 over the native iTCO watchdog driver found on many Intel CPUs. 165 166 To compile this driver as module, choose M here: the module will 167 be called wdat_wdt. 168 169config WM831X_WATCHDOG 170 tristate "WM831x watchdog" 171 depends on MFD_WM831X 172 select WATCHDOG_CORE 173 help 174 Support for the watchdog in the WM831x AudioPlus PMICs. When 175 the watchdog triggers the system will be reset. 176 177config WM8350_WATCHDOG 178 tristate "WM8350 watchdog" 179 depends on MFD_WM8350 180 select WATCHDOG_CORE 181 help 182 Support for the watchdog in the WM8350 AudioPlus PMIC. When 183 the watchdog triggers the system will be reset. 184 185config XILINX_WATCHDOG 186 tristate "Xilinx Watchdog timer" 187 depends on HAS_IOMEM 188 select WATCHDOG_CORE 189 help 190 Watchdog driver for the xps_timebase_wdt ip core. 191 192 To compile this driver as a module, choose M here: the 193 module will be called of_xilinx_wdt. 194 195config ZIIRAVE_WATCHDOG 196 tristate "Zodiac RAVE Watchdog Timer" 197 depends on I2C 198 select WATCHDOG_CORE 199 help 200 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog 201 Processor. 202 203 To compile this driver as a module, choose M here: the 204 module will be called ziirave_wdt. 205 206# ALPHA Architecture 207 208# ARM Architecture 209 210config ARM_SP805_WATCHDOG 211 tristate "ARM SP805 Watchdog" 212 depends on (ARM || ARM64) && ARM_AMBA 213 select WATCHDOG_CORE 214 help 215 ARM Primecell SP805 Watchdog timer. This will reboot your system when 216 the timeout is reached. 217 218config ARM_SBSA_WATCHDOG 219 tristate "ARM SBSA Generic Watchdog" 220 depends on ARM64 221 depends on ARM_ARCH_TIMER 222 select WATCHDOG_CORE 223 help 224 ARM SBSA Generic Watchdog has two stage timeouts: 225 the first signal (WS0) is for alerting the system by interrupt, 226 the second one (WS1) is a real hardware reset. 227 More details: ARM DEN0029B - Server Base System Architecture (SBSA) 228 229 This driver can operate ARM SBSA Generic Watchdog as a single stage 230 or a two stages watchdog, it depends on the module parameter "action". 231 232 Note: the maximum timeout in the two stages mode is half of that in 233 the single stage mode. 234 235 To compile this driver as module, choose M here: The module 236 will be called sbsa_gwdt. 237 238config ASM9260_WATCHDOG 239 tristate "Alphascale ASM9260 watchdog" 240 depends on MACH_ASM9260 241 depends on OF 242 select WATCHDOG_CORE 243 select RESET_CONTROLLER 244 help 245 Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your 246 system when the timeout is reached. 247 248config AT91RM9200_WATCHDOG 249 tristate "AT91RM9200 watchdog" 250 depends on SOC_AT91RM9200 && MFD_SYSCON 251 help 252 Watchdog timer embedded into AT91RM9200 chips. This will reboot your 253 system when the timeout is reached. 254 255config AT91SAM9X_WATCHDOG 256 tristate "AT91SAM9X / AT91CAP9 watchdog" 257 depends on ARCH_AT91 258 select WATCHDOG_CORE 259 help 260 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will 261 reboot your system when the timeout is reached. 262 263config SAMA5D4_WATCHDOG 264 tristate "Atmel SAMA5D4 Watchdog Timer" 265 depends on ARCH_AT91 266 select WATCHDOG_CORE 267 help 268 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips. 269 Its Watchdog Timer Mode Register can be written more than once. 270 This will reboot your system when the timeout is reached. 271 272config CADENCE_WATCHDOG 273 tristate "Cadence Watchdog Timer" 274 depends on HAS_IOMEM 275 select WATCHDOG_CORE 276 help 277 Say Y here if you want to include support for the watchdog 278 timer in the Xilinx Zynq. 279 280config 21285_WATCHDOG 281 tristate "DC21285 watchdog" 282 depends on FOOTBRIDGE 283 help 284 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y 285 here if you wish to use this. Alternatively say M to compile the 286 driver as a module, which will be called wdt285. 287 288 This driver does not work on all machines. In particular, early CATS 289 boards have hardware problems that will cause the machine to simply 290 lock up if the watchdog fires. 291 292 "If in doubt, leave it out" - say N. 293 294config 977_WATCHDOG 295 tristate "NetWinder WB83C977 watchdog" 296 depends on FOOTBRIDGE && ARCH_NETWINDER 297 help 298 Say Y here to include support for the WB977 watchdog included in 299 NetWinder machines. Alternatively say M to compile the driver as 300 a module, which will be called wdt977. 301 302 Not sure? It's safe to say N. 303 304config IXP4XX_WATCHDOG 305 tristate "IXP4xx Watchdog" 306 depends on ARCH_IXP4XX 307 help 308 Say Y here if to include support for the watchdog timer 309 in the Intel IXP4xx network processors. This driver can 310 be built as a module by choosing M. The module will 311 be called ixp4xx_wdt. 312 313 Note: The internal IXP4xx watchdog does a soft CPU reset 314 which doesn't reset any peripherals. There are circumstances 315 where the watchdog will fail to reset the board correctly 316 (e.g., if the boot ROM is in an unreadable state). 317 318 Say N if you are unsure. 319 320config KS8695_WATCHDOG 321 tristate "KS8695 watchdog" 322 depends on ARCH_KS8695 323 help 324 Watchdog timer embedded into KS8695 processor. This will reboot your 325 system when the timeout is reached. 326 327config HAVE_S3C2410_WATCHDOG 328 bool 329 help 330 This will include watchdog timer support for Samsung SoCs. If 331 you want to include watchdog support for any machine, kindly 332 select this in the respective mach-XXXX/Kconfig file. 333 334config S3C2410_WATCHDOG 335 tristate "S3C2410 Watchdog" 336 depends on HAVE_S3C2410_WATCHDOG 337 select WATCHDOG_CORE 338 select MFD_SYSCON if ARCH_EXYNOS5 339 help 340 Watchdog timer block in the Samsung SoCs. This will reboot 341 the system when the timer expires with the watchdog enabled. 342 343 The driver is limited by the speed of the system's PCLK 344 signal, so with reasonably fast systems (PCLK around 50-66MHz) 345 then watchdog intervals of over approximately 20seconds are 346 unavailable. 347 348 The driver can be built as a module by choosing M, and will 349 be called s3c2410_wdt 350 351config SA1100_WATCHDOG 352 tristate "SA1100/PXA2xx watchdog" 353 depends on ARCH_SA1100 || ARCH_PXA 354 help 355 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 356 reboot your system when timeout is reached. 357 358 NOTE: once enabled, this timer cannot be disabled. 359 360 To compile this driver as a module, choose M here: the 361 module will be called sa1100_wdt. 362 363config DW_WATCHDOG 364 tristate "Synopsys DesignWare watchdog" 365 depends on HAS_IOMEM 366 select WATCHDOG_CORE 367 help 368 Say Y here if to include support for the Synopsys DesignWare 369 watchdog timer found in many chips. 370 To compile this driver as a module, choose M here: the 371 module will be called dw_wdt. 372 373config EP93XX_WATCHDOG 374 tristate "EP93xx Watchdog" 375 depends on ARCH_EP93XX 376 select WATCHDOG_CORE 377 help 378 Say Y here if to include support for the watchdog timer 379 embedded in the Cirrus Logic EP93xx family of devices. 380 381 To compile this driver as a module, choose M here: the 382 module will be called ep93xx_wdt. 383 384config OMAP_WATCHDOG 385 tristate "OMAP Watchdog" 386 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS 387 select WATCHDOG_CORE 388 help 389 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y' 390 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 391 392config PNX4008_WATCHDOG 393 tristate "LPC32XX Watchdog" 394 depends on ARCH_LPC32XX 395 select WATCHDOG_CORE 396 help 397 Say Y here if to include support for the watchdog timer 398 in the LPC32XX processor. 399 This driver can be built as a module by choosing M. The module 400 will be called pnx4008_wdt. 401 402 Say N if you are unsure. 403 404config IOP_WATCHDOG 405 tristate "IOP Watchdog" 406 depends on ARCH_IOP13XX 407 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X) 408 help 409 Say Y here if to include support for the watchdog timer 410 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can 411 be built as a module by choosing M. The module will 412 be called iop_wdt. 413 414 Note: The IOP13XX watchdog does an Internal Bus Reset which will 415 affect both cores and the peripherals of the IOP. The ATU-X 416 and/or ATUe configuration registers will remain intact, but if 417 operating as an Root Complex and/or Central Resource, the PCI-X 418 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER. 419 420config DAVINCI_WATCHDOG 421 tristate "DaVinci watchdog" 422 depends on ARCH_DAVINCI || ARCH_KEYSTONE 423 select WATCHDOG_CORE 424 help 425 Say Y here if to include support for the watchdog timer 426 in the DaVinci DM644x/DM646x or Keystone processors. 427 To compile this driver as a module, choose M here: the 428 module will be called davinci_wdt. 429 430 NOTE: once enabled, this timer cannot be disabled. 431 Say N if you are unsure. 432 433config ORION_WATCHDOG 434 tristate "Orion watchdog" 435 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU 436 depends on ARM 437 select WATCHDOG_CORE 438 help 439 Say Y here if to include support for the watchdog timer 440 in the Marvell Orion5x and Kirkwood ARM SoCs. 441 To compile this driver as a module, choose M here: the 442 module will be called orion_wdt. 443 444config RN5T618_WATCHDOG 445 tristate "Ricoh RN5T618 watchdog" 446 depends on MFD_RN5T618 447 select WATCHDOG_CORE 448 help 449 If you say yes here you get support for watchdog on the Ricoh 450 RN5T618 PMIC. 451 452 This driver can also be built as a module. If so, the module 453 will be called rn5t618_wdt. 454 455config SUNXI_WATCHDOG 456 tristate "Allwinner SoCs watchdog support" 457 depends on ARCH_SUNXI 458 select WATCHDOG_CORE 459 help 460 Say Y here to include support for the watchdog timer 461 in Allwinner SoCs. 462 To compile this driver as a module, choose M here: the 463 module will be called sunxi_wdt. 464 465config COH901327_WATCHDOG 466 bool "ST-Ericsson COH 901 327 watchdog" 467 depends on ARCH_U300 468 default y if MACH_U300 469 select WATCHDOG_CORE 470 help 471 Say Y here to include Watchdog timer support for the 472 watchdog embedded into the ST-Ericsson U300 series platforms. 473 This watchdog is used to reset the system and thus cannot be 474 compiled as a module. 475 476config TWL4030_WATCHDOG 477 tristate "TWL4030 Watchdog" 478 depends on TWL4030_CORE 479 select WATCHDOG_CORE 480 help 481 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 482 watchdog timer support for TWL4030 chips. 483 484config STMP3XXX_RTC_WATCHDOG 485 tristate "Freescale STMP3XXX & i.MX23/28 watchdog" 486 depends on RTC_DRV_STMP 487 select WATCHDOG_CORE 488 help 489 Say Y here to include support for the watchdog timer inside 490 the RTC for the STMP37XX/378X or i.MX23/28 SoC. 491 To compile this driver as a module, choose M here: the 492 module will be called stmp3xxx_rtc_wdt. 493 494config NUC900_WATCHDOG 495 tristate "Nuvoton NUC900 watchdog" 496 depends on ARCH_W90X900 497 help 498 Say Y here if to include support for the watchdog timer 499 for the Nuvoton NUC900 series SoCs. 500 To compile this driver as a module, choose M here: the 501 module will be called nuc900_wdt. 502 503config TS4800_WATCHDOG 504 tristate "TS-4800 Watchdog" 505 depends on HAS_IOMEM && OF 506 depends on SOC_IMX51 || COMPILE_TEST 507 select WATCHDOG_CORE 508 select MFD_SYSCON 509 help 510 Technologic Systems TS-4800 has watchdog timer implemented in 511 an external FPGA. Say Y here if you want to support for the 512 watchdog timer on TS-4800 board. 513 514config TS72XX_WATCHDOG 515 tristate "TS-72XX SBC Watchdog" 516 depends on MACH_TS72XX 517 help 518 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 519 watchdog timer implemented in a external CPLD chip. Say Y here 520 if you want to support for the watchdog timer on TS-72XX boards. 521 522 To compile this driver as a module, choose M here: the 523 module will be called ts72xx_wdt. 524 525config MAX63XX_WATCHDOG 526 tristate "Max63xx watchdog" 527 depends on HAS_IOMEM 528 select WATCHDOG_CORE 529 help 530 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 531 532config MAX77620_WATCHDOG 533 tristate "Maxim Max77620 Watchdog Timer" 534 depends on MFD_MAX77620 535 help 536 This is the driver for the Max77620 watchdog timer. 537 Say 'Y' here to enable the watchdog timer support for 538 MAX77620 chips. To compile this driver as a module, 539 choose M here: the module will be called max77620_wdt. 540 541config IMX2_WDT 542 tristate "IMX2+ Watchdog" 543 depends on ARCH_MXC || ARCH_LAYERSCAPE 544 select REGMAP_MMIO 545 select WATCHDOG_CORE 546 help 547 This is the driver for the hardware watchdog 548 on the Freescale IMX2 and later processors. 549 If you have one of these processors and wish to have 550 watchdog support enabled, say Y, otherwise say N. 551 552 To compile this driver as a module, choose M here: the 553 module will be called imx2_wdt. 554 555config UX500_WATCHDOG 556 tristate "ST-Ericsson Ux500 watchdog" 557 depends on MFD_DB8500_PRCMU 558 select WATCHDOG_CORE 559 default y 560 help 561 Say Y here to include Watchdog timer support for the watchdog 562 existing in the prcmu of ST-Ericsson Ux500 series platforms. 563 564 To compile this driver as a module, choose M here: the 565 module will be called ux500_wdt. 566 567config RETU_WATCHDOG 568 tristate "Retu watchdog" 569 depends on MFD_RETU 570 select WATCHDOG_CORE 571 help 572 Retu watchdog driver for Nokia Internet Tablets (770, N800, 573 N810). At least on N800 the watchdog cannot be disabled, so 574 this driver is essential and you should enable it. 575 576 To compile this driver as a module, choose M here: the 577 module will be called retu_wdt. 578 579config MOXART_WDT 580 tristate "MOXART watchdog" 581 depends on ARCH_MOXART 582 help 583 Say Y here to include Watchdog timer support for the watchdog 584 existing on the MOXA ART SoC series platforms. 585 586 To compile this driver as a module, choose M here: the 587 module will be called moxart_wdt. 588 589config SIRFSOC_WATCHDOG 590 tristate "SiRFSOC watchdog" 591 depends on ARCH_SIRF 592 select WATCHDOG_CORE 593 default y 594 help 595 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When 596 the watchdog triggers the system will be reset. 597 598config ST_LPC_WATCHDOG 599 tristate "STMicroelectronics LPC Watchdog" 600 depends on ARCH_STI 601 depends on OF 602 select WATCHDOG_CORE 603 help 604 Say Y here to include STMicroelectronics Low Power Controller 605 (LPC) based Watchdog timer support. 606 607 To compile this driver as a module, choose M here: the 608 module will be called st_lpc_wdt. 609 610config TEGRA_WATCHDOG 611 tristate "Tegra watchdog" 612 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM 613 select WATCHDOG_CORE 614 help 615 Say Y here to include support for the watchdog timer 616 embedded in NVIDIA Tegra SoCs. 617 618 To compile this driver as a module, choose M here: the 619 module will be called tegra_wdt. 620 621config QCOM_WDT 622 tristate "QCOM watchdog" 623 depends on HAS_IOMEM 624 depends on ARCH_QCOM 625 select WATCHDOG_CORE 626 help 627 Say Y here to include Watchdog timer support for the watchdog found 628 on QCOM chipsets. Currently supported targets are the MSM8960, 629 APQ8064, and IPQ8064. 630 631 To compile this driver as a module, choose M here: the 632 module will be called qcom_wdt. 633 634config MESON_GXBB_WATCHDOG 635 tristate "Amlogic Meson GXBB SoCs watchdog support" 636 depends on ARCH_MESON 637 select WATCHDOG_CORE 638 help 639 Say Y here to include support for the watchdog timer 640 in Amlogic Meson GXBB SoCs. 641 To compile this driver as a module, choose M here: the 642 module will be called meson_gxbb_wdt. 643 644config MESON_WATCHDOG 645 tristate "Amlogic Meson SoCs watchdog support" 646 depends on ARCH_MESON 647 select WATCHDOG_CORE 648 help 649 Say Y here to include support for the watchdog timer 650 in Amlogic Meson SoCs. 651 To compile this driver as a module, choose M here: the 652 module will be called meson_wdt. 653 654config MEDIATEK_WATCHDOG 655 tristate "Mediatek SoCs watchdog support" 656 depends on ARCH_MEDIATEK 657 select WATCHDOG_CORE 658 help 659 Say Y here to include support for the watchdog timer 660 in Mediatek SoCs. 661 To compile this driver as a module, choose M here: the 662 module will be called mtk_wdt. 663 664config DIGICOLOR_WATCHDOG 665 tristate "Conexant Digicolor SoCs watchdog support" 666 depends on ARCH_DIGICOLOR 667 select WATCHDOG_CORE 668 help 669 Say Y here to include support for the watchdog timer 670 in Conexant Digicolor SoCs. 671 To compile this driver as a module, choose M here: the 672 module will be called digicolor_wdt. 673 674config LPC18XX_WATCHDOG 675 tristate "LPC18xx/43xx Watchdog" 676 depends on ARCH_LPC18XX || COMPILE_TEST 677 depends on HAS_IOMEM 678 select WATCHDOG_CORE 679 help 680 Say Y here if to include support for the watchdog timer 681 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx 682 processors. 683 To compile this driver as a module, choose M here: the 684 module will be called lpc18xx_wdt. 685 686config ATLAS7_WATCHDOG 687 tristate "CSRatlas7 watchdog" 688 depends on ARCH_ATLAS7 689 help 690 Say Y here to include Watchdog timer support for the watchdog 691 existing on the CSRatlas7 series platforms. 692 693 To compile this driver as a module, choose M here: the 694 module will be called atlas7_wdt. 695 696config RENESAS_WDT 697 tristate "Renesas WDT Watchdog" 698 depends on ARCH_RENESAS || COMPILE_TEST 699 select WATCHDOG_CORE 700 help 701 This driver adds watchdog support for the integrated watchdogs in the 702 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT). 703 704config ASPEED_WATCHDOG 705 tristate "Aspeed 2400 watchdog support" 706 depends on ARCH_ASPEED || COMPILE_TEST 707 select WATCHDOG_CORE 708 help 709 Say Y here to include support for the watchdog timer 710 in Apseed BMC SoCs. 711 712 This driver is required to reboot the SoC. 713 714 To compile this driver as a module, choose M here: the 715 module will be called aspeed_wdt. 716 717# AVR32 Architecture 718 719config AT32AP700X_WDT 720 tristate "AT32AP700x watchdog" 721 depends on CPU_AT32AP700X 722 help 723 Watchdog timer embedded into AT32AP700x devices. This will reboot 724 your system when the timeout is reached. 725 726# BLACKFIN Architecture 727 728config BFIN_WDT 729 tristate "Blackfin On-Chip Watchdog Timer" 730 depends on BLACKFIN 731 ---help--- 732 If you say yes here you will get support for the Blackfin On-Chip 733 Watchdog Timer. If you have one of these processors and wish to 734 have watchdog support enabled, say Y, otherwise say N. 735 736 To compile this driver as a module, choose M here: the 737 module will be called bfin_wdt. 738 739# CRIS Architecture 740 741# FRV Architecture 742 743# X86 (i386 + ia64 + x86_64) Architecture 744 745config ACQUIRE_WDT 746 tristate "Acquire SBC Watchdog Timer" 747 depends on X86 748 ---help--- 749 This is the driver for the hardware watchdog on Single Board 750 Computers produced by Acquire Inc (and others). This watchdog 751 simply watches your kernel to make sure it doesn't freeze, and if 752 it does, it reboots your computer after a certain amount of time. 753 754 To compile this driver as a module, choose M here: the 755 module will be called acquirewdt. 756 757 Most people will say N. 758 759config ADVANTECH_WDT 760 tristate "Advantech SBC Watchdog Timer" 761 depends on X86 762 help 763 If you are configuring a Linux kernel for the Advantech single-board 764 computer, say `Y' here to support its built-in watchdog timer 765 feature. More information can be found at 766 <http://www.advantech.com.tw/products/> 767 768config ALIM1535_WDT 769 tristate "ALi M1535 PMU Watchdog Timer" 770 depends on X86 && PCI 771 ---help--- 772 This is the driver for the hardware watchdog on the ALi M1535 PMU. 773 774 To compile this driver as a module, choose M here: the 775 module will be called alim1535_wdt. 776 777 Most people will say N. 778 779config ALIM7101_WDT 780 tristate "ALi M7101 PMU Computer Watchdog" 781 depends on PCI 782 help 783 This is the driver for the hardware watchdog on the ALi M7101 PMU 784 as used in the x86 Cobalt servers and also found in some 785 SPARC Netra servers too. 786 787 To compile this driver as a module, choose M here: the 788 module will be called alim7101_wdt. 789 790 Most people will say N. 791 792config EBC_C384_WDT 793 tristate "WinSystems EBC-C384 Watchdog Timer" 794 depends on X86 && ISA_BUS_API 795 select WATCHDOG_CORE 796 help 797 Enables watchdog timer support for the watchdog timer on the 798 WinSystems EBC-C384 motherboard. The timeout may be configured via 799 the timeout module parameter. 800 801config F71808E_WDT 802 tristate "Fintek F718xx, F818xx Super I/O Watchdog" 803 depends on X86 804 help 805 This is the driver for the hardware watchdog on the Fintek F71808E, 806 F71862FG, F71868, F71869, F71882FG, F71889FG, F81865 and F81866 807 Super I/O controllers. 808 809 You can compile this driver directly into the kernel, or use 810 it as a module. The module will be called f71808e_wdt. 811 812config SP5100_TCO 813 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 814 depends on X86 && PCI 815 ---help--- 816 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 817 (Total Cost of Ownership) timer is a watchdog timer that will reboot 818 the machine after its expiration. The expiration time can be 819 configured with the "heartbeat" parameter. 820 821 To compile this driver as a module, choose M here: the 822 module will be called sp5100_tco. 823 824config GEODE_WDT 825 tristate "AMD Geode CS5535/CS5536 Watchdog" 826 depends on CS5535_MFGPT 827 help 828 This driver enables a watchdog capability built into the 829 CS5535/CS5536 companion chips for the AMD Geode GX and LX 830 processors. This watchdog watches your kernel to make sure 831 it doesn't freeze, and if it does, it reboots your computer after 832 a certain amount of time. 833 834 You can compile this driver directly into the kernel, or use 835 it as a module. The module will be called geodewdt. 836 837config SC520_WDT 838 tristate "AMD Elan SC520 processor Watchdog" 839 depends on MELAN 840 help 841 This is the driver for the hardware watchdog built in to the 842 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 843 This watchdog simply watches your kernel to make sure it doesn't 844 freeze, and if it does, it reboots your computer after a certain 845 amount of time. 846 847 You can compile this driver directly into the kernel, or use 848 it as a module. The module will be called sc520_wdt. 849 850config SBC_FITPC2_WATCHDOG 851 tristate "Compulab SBC-FITPC2 watchdog" 852 depends on X86 853 ---help--- 854 This is the driver for the built-in watchdog timer on the fit-PC2, 855 fit-PC2i, CM-iAM single-board computers made by Compulab. 856 857 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux. 858 When "Watchdog Timer Value" enabled one can set 31-255 s operational range. 859 860 Entering BIOS setup temporary disables watchdog operation regardless to current state, 861 so system will not be restarted while user in BIOS setup. 862 863 Once watchdog was enabled the system will be restarted every 864 "Watchdog Timer Value" period, so to prevent it user can restart or 865 disable the watchdog. 866 867 To compile this driver as a module, choose M here: the 868 module will be called sbc_fitpc2_wdt. 869 870 Most people will say N. 871 872config EUROTECH_WDT 873 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 874 depends on X86 875 help 876 Enable support for the watchdog timer on the Eurotech CPU-1220 and 877 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 878 information are at <http://www.eurotech.it/>. 879 880config IB700_WDT 881 tristate "IB700 SBC Watchdog Timer" 882 depends on X86 883 ---help--- 884 This is the driver for the hardware watchdog on the IB700 Single 885 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog 886 simply watches your kernel to make sure it doesn't freeze, and if 887 it does, it reboots your computer after a certain amount of time. 888 889 This driver is like the WDT501 driver but for slightly different hardware. 890 891 To compile this driver as a module, choose M here: the 892 module will be called ib700wdt. 893 894 Most people will say N. 895 896config IBMASR 897 tristate "IBM Automatic Server Restart" 898 depends on X86 899 help 900 This is the driver for the IBM Automatic Server Restart watchdog 901 timer built-in into some eServer xSeries machines. 902 903 To compile this driver as a module, choose M here: the 904 module will be called ibmasr. 905 906config WAFER_WDT 907 tristate "ICP Single Board Computer Watchdog Timer" 908 depends on X86 909 help 910 This is a driver for the hardware watchdog on the ICP Single 911 Board Computer. This driver is working on (at least) the following 912 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 913 914 To compile this driver as a module, choose M here: the 915 module will be called wafer5823wdt. 916 917config I6300ESB_WDT 918 tristate "Intel 6300ESB Timer/Watchdog" 919 depends on PCI 920 ---help--- 921 Hardware driver for the watchdog timer built into the Intel 922 6300ESB controller hub. 923 924 To compile this driver as a module, choose M here: the 925 module will be called i6300esb. 926 927config IE6XX_WDT 928 tristate "Intel Atom E6xx Watchdog" 929 depends on X86 && PCI 930 select WATCHDOG_CORE 931 select MFD_CORE 932 select LPC_SCH 933 ---help--- 934 Hardware driver for the watchdog timer built into the Intel 935 Atom E6XX (TunnelCreek) processor. 936 937 To compile this driver as a module, choose M here: the 938 module will be called ie6xx_wdt. 939 940config INTEL_SCU_WATCHDOG 941 bool "Intel SCU Watchdog for Mobile Platforms" 942 depends on X86_INTEL_MID 943 ---help--- 944 Hardware driver for the watchdog time built into the Intel SCU 945 for Intel Mobile Platforms. 946 947 To compile this driver as a module, choose M here. 948 949config INTEL_MID_WATCHDOG 950 tristate "Intel MID Watchdog Timer" 951 depends on X86_INTEL_MID 952 select WATCHDOG_CORE 953 ---help--- 954 Watchdog timer driver built into the Intel SCU for Intel MID 955 Platforms. 956 957 This driver currently supports only the watchdog evolution 958 implementation in SCU, available for Merrifield generation. 959 960 To compile this driver as a module, choose M here. 961 962config ITCO_WDT 963 tristate "Intel TCO Timer/Watchdog" 964 depends on (X86 || IA64) && PCI 965 select WATCHDOG_CORE 966 depends on I2C || I2C=n 967 select LPC_ICH if !EXPERT 968 select I2C_I801 if !EXPERT && I2C 969 ---help--- 970 Hardware driver for the intel TCO timer based watchdog devices. 971 These drivers are included in the Intel 82801 I/O Controller 972 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 973 controller hub. 974 975 The TCO (Total Cost of Ownership) timer is a watchdog timer 976 that will reboot the machine after its second expiration. The 977 expiration time can be configured with the "heartbeat" parameter. 978 979 On some motherboards the driver may fail to reset the chipset's 980 NO_REBOOT flag which prevents the watchdog from rebooting the 981 machine. If this is the case you will get a kernel message like 982 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 983 984 To compile this driver as a module, choose M here: the 985 module will be called iTCO_wdt. 986 987config ITCO_VENDOR_SUPPORT 988 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 989 depends on ITCO_WDT 990 ---help--- 991 Add vendor specific support to the intel TCO timer based watchdog 992 devices. At this moment we only have additional support for some 993 SuperMicro Inc. motherboards. 994 995config IT8712F_WDT 996 tristate "IT8712F (Smart Guardian) Watchdog Timer" 997 depends on X86 998 ---help--- 999 This is the driver for the built-in watchdog timer on the IT8712F 1000 Super I/0 chipset used on many motherboards. 1001 1002 If the driver does not work, then make sure that the game port in 1003 the BIOS is enabled. 1004 1005 To compile this driver as a module, choose M here: the 1006 module will be called it8712f_wdt. 1007 1008config IT87_WDT 1009 tristate "IT87 Watchdog Timer" 1010 depends on X86 1011 ---help--- 1012 This is the driver for the hardware watchdog on the ITE IT8702, 1013 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728 1014 Super I/O chips. 1015 1016 If the driver does not work, then make sure that the game port in 1017 the BIOS is enabled. 1018 1019 This watchdog simply watches your kernel to make sure it doesn't 1020 freeze, and if it does, it reboots your computer after a certain 1021 amount of time. 1022 1023 To compile this driver as a module, choose M here: the module will 1024 be called it87_wdt. 1025 1026config HP_WATCHDOG 1027 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 1028 depends on X86 && PCI 1029 help 1030 A software monitoring watchdog and NMI sourcing driver. This driver 1031 will detect lockups and provide a stack trace. This is a driver that 1032 will only load on an HP ProLiant system with a minimum of iLO2 support. 1033 To compile this driver as a module, choose M here: the module will be 1034 called hpwdt. 1035 1036config KEMPLD_WDT 1037 tristate "Kontron COM Watchdog Timer" 1038 depends on MFD_KEMPLD 1039 select WATCHDOG_CORE 1040 help 1041 Support for the PLD watchdog on some Kontron ETX and COMexpress 1042 (ETXexpress) modules 1043 1044 This driver can also be built as a module. If so, the module will be 1045 called kempld_wdt. 1046 1047config HPWDT_NMI_DECODING 1048 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 1049 depends on HP_WATCHDOG 1050 default y 1051 help 1052 When an NMI occurs this feature will make the necessary BIOS calls to 1053 log the cause of the NMI. 1054 1055config SC1200_WDT 1056 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 1057 depends on X86 1058 help 1059 This is a driver for National Semiconductor PC87307/PC97307 hardware 1060 watchdog cards as found on the SC1200. This watchdog is mainly used 1061 for power management purposes and can be used to power down the device 1062 during inactivity periods (includes interrupt activity monitoring). 1063 1064 To compile this driver as a module, choose M here: the 1065 module will be called sc1200wdt. 1066 1067 Most people will say N. 1068 1069config SCx200_WDT 1070 tristate "National Semiconductor SCx200 Watchdog" 1071 depends on SCx200 && PCI 1072 help 1073 Enable the built-in watchdog timer support on the National 1074 Semiconductor SCx200 processors. 1075 1076 If compiled as a module, it will be called scx200_wdt. 1077 1078config PC87413_WDT 1079 tristate "NS PC87413 watchdog" 1080 depends on X86 1081 ---help--- 1082 This is the driver for the hardware watchdog on the PC87413 chipset 1083 This watchdog simply watches your kernel to make sure it doesn't 1084 freeze, and if it does, it reboots your computer after a certain 1085 amount of time. 1086 1087 To compile this driver as a module, choose M here: the 1088 module will be called pc87413_wdt. 1089 1090 Most people will say N. 1091 1092config NV_TCO 1093 tristate "nVidia TCO Timer/Watchdog" 1094 depends on X86 && PCI 1095 ---help--- 1096 Hardware driver for the TCO timer built into the nVidia Hub family 1097 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 1098 watchdog timer that will reboot the machine after its second 1099 expiration. The expiration time can be configured with the 1100 "heartbeat" parameter. 1101 1102 On some motherboards the driver may fail to reset the chipset's 1103 NO_REBOOT flag which prevents the watchdog from rebooting the 1104 machine. If this is the case you will get a kernel message like 1105 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1106 1107 To compile this driver as a module, choose M here: the 1108 module will be called nv_tco. 1109 1110config RDC321X_WDT 1111 tristate "RDC R-321x SoC watchdog" 1112 depends on X86_RDC321X 1113 help 1114 This is the driver for the built in hardware watchdog 1115 in the RDC R-321x SoC. 1116 1117 To compile this driver as a module, choose M here: the 1118 module will be called rdc321x_wdt. 1119 1120config 60XX_WDT 1121 tristate "SBC-60XX Watchdog Timer" 1122 depends on X86 1123 help 1124 This driver can be used with the watchdog timer found on some 1125 single board computers, namely the 6010 PII based computer. 1126 It may well work with other cards. It reads port 0x443 to enable 1127 and re-set the watchdog timer, and reads port 0x45 to disable 1128 the watchdog. If you have a card that behave in similar ways, 1129 you can probably make this driver work with your card as well. 1130 1131 You can compile this driver directly into the kernel, or use 1132 it as a module. The module will be called sbc60xxwdt. 1133 1134config SBC8360_WDT 1135 tristate "SBC8360 Watchdog Timer" 1136 depends on X86_32 1137 ---help--- 1138 1139 This is the driver for the hardware watchdog on the SBC8360 Single 1140 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 1141 1142 To compile this driver as a module, choose M here: the 1143 module will be called sbc8360. 1144 1145 Most people will say N. 1146 1147config SBC7240_WDT 1148 tristate "SBC Nano 7240 Watchdog Timer" 1149 depends on X86_32 && !UML 1150 ---help--- 1151 This is the driver for the hardware watchdog found on the IEI 1152 single board computers EPIC Nano 7240 (and likely others). This 1153 watchdog simply watches your kernel to make sure it doesn't freeze, 1154 and if it does, it reboots your computer after a certain amount of 1155 time. 1156 1157 To compile this driver as a module, choose M here: the 1158 module will be called sbc7240_wdt. 1159 1160config CPU5_WDT 1161 tristate "SMA CPU5 Watchdog" 1162 depends on X86 1163 ---help--- 1164 TBD. 1165 To compile this driver as a module, choose M here: the 1166 module will be called cpu5wdt. 1167 1168config SMSC_SCH311X_WDT 1169 tristate "SMSC SCH311X Watchdog Timer" 1170 depends on X86 1171 ---help--- 1172 This is the driver for the hardware watchdog timer on the 1173 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1174 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1175 serial ports). 1176 1177 To compile this driver as a module, choose M here: the 1178 module will be called sch311x_wdt. 1179 1180config SMSC37B787_WDT 1181 tristate "Winbond SMsC37B787 Watchdog Timer" 1182 depends on X86 1183 ---help--- 1184 This is the driver for the hardware watchdog component on the 1185 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1186 from Vision Systems and maybe others. 1187 1188 This watchdog simply watches your kernel to make sure it doesn't 1189 freeze, and if it does, it reboots your computer after a certain 1190 amount of time. 1191 1192 Usually a userspace daemon will notify the kernel WDT driver that 1193 userspace is still alive, at regular intervals. 1194 1195 To compile this driver as a module, choose M here: the 1196 module will be called smsc37b787_wdt. 1197 1198 Most people will say N. 1199 1200config VIA_WDT 1201 tristate "VIA Watchdog Timer" 1202 depends on X86 && PCI 1203 select WATCHDOG_CORE 1204 ---help--- 1205 This is the driver for the hardware watchdog timer on VIA 1206 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1207 1208 To compile this driver as a module, choose M here; the module 1209 will be called via_wdt. 1210 1211 Most people will say N. 1212 1213config W83627HF_WDT 1214 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1215 depends on X86 1216 select WATCHDOG_CORE 1217 ---help--- 1218 This is the driver for the hardware watchdog on the following 1219 Super I/O chips. 1220 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1221 W83637HF 1222 W83667HG/HG-B 1223 W83687THF 1224 W83697HF 1225 W83697UG 1226 NCT6775 1227 NCT6776 1228 NCT6779 1229 NCT6791 1230 NCT6792 1231 NCT6102D/04D/06D 1232 1233 This watchdog simply watches your kernel to make sure it doesn't 1234 freeze, and if it does, it reboots your computer after a certain 1235 amount of time. 1236 1237 To compile this driver as a module, choose M here: the 1238 module will be called w83627hf_wdt. 1239 1240 Most people will say N. 1241 1242config W83877F_WDT 1243 tristate "W83877F (EMACS) Watchdog Timer" 1244 depends on X86 1245 ---help--- 1246 This is the driver for the hardware watchdog on the W83877F chipset 1247 as used in EMACS PC-104 motherboards (and likely others). This 1248 watchdog simply watches your kernel to make sure it doesn't freeze, 1249 and if it does, it reboots your computer after a certain amount of 1250 time. 1251 1252 To compile this driver as a module, choose M here: the 1253 module will be called w83877f_wdt. 1254 1255 Most people will say N. 1256 1257config W83977F_WDT 1258 tristate "W83977F (PCM-5335) Watchdog Timer" 1259 depends on X86 1260 ---help--- 1261 This is the driver for the hardware watchdog on the W83977F I/O chip 1262 as used in AAEON's PCM-5335 SBC (and likely others). This 1263 watchdog simply watches your kernel to make sure it doesn't freeze, 1264 and if it does, it reboots your computer after a certain amount of 1265 time. 1266 1267 To compile this driver as a module, choose M here: the 1268 module will be called w83977f_wdt. 1269 1270config MACHZ_WDT 1271 tristate "ZF MachZ Watchdog" 1272 depends on X86 1273 ---help--- 1274 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1275 N. This is the driver for the watchdog timer built-in on that 1276 processor using ZF-Logic interface. This watchdog simply watches 1277 your kernel to make sure it doesn't freeze, and if it does, it 1278 reboots your computer after a certain amount of time. 1279 1280 To compile this driver as a module, choose M here: the 1281 module will be called machzwd. 1282 1283config SBC_EPX_C3_WATCHDOG 1284 tristate "Winsystems SBC EPX-C3 watchdog" 1285 depends on X86 1286 ---help--- 1287 This is the driver for the built-in watchdog timer on the EPX-C3 1288 Single-board computer made by Winsystems, Inc. 1289 1290 *Note*: This hardware watchdog is not probeable and thus there 1291 is no way to know if writing to its IO address will corrupt 1292 your system or have any real effect. The only way to be sure 1293 that this driver does what you want is to make sure you 1294 are running it on an EPX-C3 from Winsystems with the watchdog 1295 timer at IO address 0x1ee and 0x1ef. It will write to both those 1296 IO ports. Basically, the assumption is made that if you compile 1297 this driver into your kernel and/or load it as a module, that you 1298 know what you are doing and that you are in fact running on an 1299 EPX-C3 board! 1300 1301 To compile this driver as a module, choose M here: the 1302 module will be called sbc_epx_c3. 1303 1304config INTEL_MEI_WDT 1305 tristate "Intel MEI iAMT Watchdog" 1306 depends on INTEL_MEI && X86 1307 select WATCHDOG_CORE 1308 ---help--- 1309 A device driver for the Intel MEI iAMT watchdog. 1310 1311 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. 1312 Whenever the OS hangs or crashes, iAMT will send an event 1313 to any subscriber to this event. The watchdog doesn't reset the 1314 the platform. 1315 1316 To compile this driver as a module, choose M here: 1317 the module will be called mei_wdt. 1318 1319config NI903X_WDT 1320 tristate "NI 903x/913x Watchdog" 1321 depends on X86 && ACPI 1322 select WATCHDOG_CORE 1323 ---help--- 1324 This is the driver for the watchdog timer on the National Instruments 1325 903x/913x real-time controllers. 1326 1327 To compile this driver as a module, choose M here: the module will be 1328 called ni903x_wdt. 1329 1330# M32R Architecture 1331 1332# M68K Architecture 1333 1334config M54xx_WATCHDOG 1335 tristate "MCF54xx watchdog support" 1336 depends on M548x 1337 help 1338 To compile this driver as a module, choose M here: the 1339 module will be called m54xx_wdt. 1340 1341# MicroBlaze Architecture 1342 1343# MIPS Architecture 1344 1345config ATH79_WDT 1346 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1347 depends on ATH79 1348 help 1349 Hardware driver for the built-in watchdog timer on the Atheros 1350 AR71XX/AR724X/AR913X SoCs. 1351 1352config BCM47XX_WDT 1353 tristate "Broadcom BCM47xx Watchdog Timer" 1354 depends on BCM47XX || ARCH_BCM_5301X 1355 select WATCHDOG_CORE 1356 help 1357 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1358 1359config RC32434_WDT 1360 tristate "IDT RC32434 SoC Watchdog Timer" 1361 depends on MIKROTIK_RB532 1362 help 1363 Hardware driver for the IDT RC32434 SoC built-in 1364 watchdog timer. 1365 1366 To compile this driver as a module, choose M here: the 1367 module will be called rc32434_wdt. 1368 1369config INDYDOG 1370 tristate "Indy/I2 Hardware Watchdog" 1371 depends on SGI_HAS_INDYDOG 1372 help 1373 Hardware driver for the Indy's/I2's watchdog. This is a 1374 watchdog timer that will reboot the machine after a 60 second 1375 timer expired and no process has written to /dev/watchdog during 1376 that time. 1377 1378config JZ4740_WDT 1379 tristate "Ingenic jz4740 SoC hardware watchdog" 1380 depends on MACH_JZ4740 1381 select WATCHDOG_CORE 1382 help 1383 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1384 1385config WDT_MTX1 1386 tristate "MTX-1 Hardware Watchdog" 1387 depends on MIPS_MTX1 1388 help 1389 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1390 will reboot the machine after a 100 seconds timer expired. 1391 1392config PNX833X_WDT 1393 tristate "PNX833x Hardware Watchdog" 1394 depends on SOC_PNX8335 1395 help 1396 Hardware driver for the PNX833x's watchdog. This is a 1397 watchdog timer that will reboot the machine after a programmable 1398 timer has expired and no process has written to /dev/watchdog during 1399 that time. 1400 1401config SIBYTE_WDOG 1402 tristate "Sibyte SoC hardware watchdog" 1403 depends on CPU_SB1 1404 help 1405 Watchdog driver for the built in watchdog hardware in Sibyte 1406 SoC processors. There are apparently two watchdog timers 1407 on such processors; this driver supports only the first one, 1408 because currently Linux only supports exporting one watchdog 1409 to userspace. 1410 1411 To compile this driver as a loadable module, choose M here. 1412 The module will be called sb_wdog. 1413 1414config AR7_WDT 1415 tristate "TI AR7 Watchdog Timer" 1416 depends on AR7 1417 help 1418 Hardware driver for the TI AR7 Watchdog Timer. 1419 1420config TXX9_WDT 1421 tristate "Toshiba TXx9 Watchdog Timer" 1422 depends on CPU_TX39XX || CPU_TX49XX 1423 select WATCHDOG_CORE 1424 help 1425 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1426 1427config OCTEON_WDT 1428 tristate "Cavium OCTEON SOC family Watchdog Timer" 1429 depends on CAVIUM_OCTEON_SOC 1430 default y 1431 select WATCHDOG_CORE 1432 select EXPORT_UASM if OCTEON_WDT = m 1433 help 1434 Hardware driver for OCTEON's on chip watchdog timer. 1435 Enables the watchdog for all cores running Linux. It 1436 installs a NMI handler and pokes the watchdog based on an 1437 interrupt. On first expiration of the watchdog, the 1438 interrupt handler pokes it. The second expiration causes an 1439 NMI that prints a message. The third expiration causes a 1440 global soft reset. 1441 1442 When userspace has /dev/watchdog open, no poking is done 1443 from the first interrupt, it is then only poked when the 1444 device is written. 1445 1446config BCM63XX_WDT 1447 tristate "Broadcom BCM63xx hardware watchdog" 1448 depends on BCM63XX 1449 help 1450 Watchdog driver for the built in watchdog hardware in Broadcom 1451 BCM63xx SoC. 1452 1453 To compile this driver as a loadable module, choose M here. 1454 The module will be called bcm63xx_wdt. 1455 1456config BCM2835_WDT 1457 tristate "Broadcom BCM2835 hardware watchdog" 1458 depends on ARCH_BCM2835 1459 select WATCHDOG_CORE 1460 help 1461 Watchdog driver for the built in watchdog hardware in Broadcom 1462 BCM2835 SoC. 1463 1464 To compile this driver as a loadable module, choose M here. 1465 The module will be called bcm2835_wdt. 1466 1467config BCM_KONA_WDT 1468 tristate "BCM Kona Watchdog" 1469 depends on ARCH_BCM_MOBILE 1470 select WATCHDOG_CORE 1471 help 1472 Support for the watchdog timer on the following Broadcom BCM281xx 1473 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1474 BCM28155 variants. 1475 1476 Say 'Y' or 'M' here to enable the driver. The module will be called 1477 bcm_kona_wdt. 1478 1479config BCM_KONA_WDT_DEBUG 1480 bool "DEBUGFS support for BCM Kona Watchdog" 1481 depends on BCM_KONA_WDT 1482 help 1483 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1484 access to the driver's internal data structures as well as watchdog 1485 timer hardware registres. 1486 1487 If in doubt, say 'N'. 1488 1489config BCM7038_WDT 1490 tristate "BCM7038 Watchdog" 1491 select WATCHDOG_CORE 1492 depends on HAS_IOMEM 1493 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST 1494 help 1495 Watchdog driver for the built-in hardware in Broadcom 7038 and 1496 later SoCs used in set-top boxes. BCM7038 was made public 1497 during the 2004 CES, and since then, many Broadcom chips use this 1498 watchdog block, including some cable modem chips. 1499 1500config IMGPDC_WDT 1501 tristate "Imagination Technologies PDC Watchdog Timer" 1502 depends on HAS_IOMEM 1503 depends on METAG || MIPS || COMPILE_TEST 1504 select WATCHDOG_CORE 1505 help 1506 Driver for Imagination Technologies PowerDown Controller 1507 Watchdog Timer. 1508 1509 To compile this driver as a loadable module, choose M here. 1510 The module will be called imgpdc_wdt. 1511 1512config LANTIQ_WDT 1513 tristate "Lantiq SoC watchdog" 1514 depends on LANTIQ 1515 help 1516 Hardware driver for the Lantiq SoC Watchdog Timer. 1517 1518config RALINK_WDT 1519 tristate "Ralink SoC watchdog" 1520 select WATCHDOG_CORE 1521 depends on RALINK 1522 help 1523 Hardware driver for the Ralink SoC Watchdog Timer. 1524 1525config MT7621_WDT 1526 tristate "Mediatek SoC watchdog" 1527 select WATCHDOG_CORE 1528 depends on SOC_MT7620 || SOC_MT7621 1529 help 1530 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer. 1531 1532config PIC32_WDT 1533 tristate "Microchip PIC32 hardware watchdog" 1534 select WATCHDOG_CORE 1535 depends on MACH_PIC32 1536 help 1537 Watchdog driver for the built in watchdog hardware in a PIC32. 1538 1539 Configuration bits must be set appropriately for the watchdog to be 1540 controlled by this driver. 1541 1542 To compile this driver as a loadable module, choose M here. 1543 The module will be called pic32-wdt. 1544 1545config PIC32_DMT 1546 tristate "Microchip PIC32 Deadman Timer" 1547 select WATCHDOG_CORE 1548 depends on MACH_PIC32 1549 help 1550 Watchdog driver for PIC32 instruction fetch counting timer. This specific 1551 timer is typically be used in misson critical and safety critical 1552 applications, where any single failure of the software functionality 1553 and sequencing must be detected. 1554 1555 To compile this driver as a loadable module, choose M here. 1556 The module will be called pic32-dmt. 1557 1558# PARISC Architecture 1559 1560# POWERPC Architecture 1561 1562config GEF_WDT 1563 tristate "GE Watchdog Timer" 1564 depends on GE_FPGA 1565 ---help--- 1566 Watchdog timer found in a number of GE single board computers. 1567 1568config MPC5200_WDT 1569 bool "MPC52xx Watchdog Timer" 1570 depends on PPC_MPC52xx 1571 help 1572 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 1573 1574config 8xxx_WDT 1575 tristate "MPC8xxx Platform Watchdog Timer" 1576 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x 1577 select WATCHDOG_CORE 1578 help 1579 This driver is for a SoC level watchdog that exists on some 1580 Freescale PowerPC processors. So far this driver supports: 1581 - MPC8xx watchdogs 1582 - MPC83xx watchdogs 1583 - MPC86xx watchdogs 1584 1585 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 1586 1587config MV64X60_WDT 1588 tristate "MV64X60 (Marvell Discovery) Watchdog Timer" 1589 depends on MV64X60 1590 1591config PIKA_WDT 1592 tristate "PIKA FPGA Watchdog" 1593 depends on WARP 1594 default y 1595 help 1596 This enables the watchdog in the PIKA FPGA. Currently used on 1597 the Warp platform. 1598 1599config BOOKE_WDT 1600 tristate "PowerPC Book-E Watchdog Timer" 1601 depends on BOOKE || 4xx 1602 select WATCHDOG_CORE 1603 ---help--- 1604 Watchdog driver for PowerPC Book-E chips, such as the Freescale 1605 MPC85xx SOCs and the IBM PowerPC 440. 1606 1607 Please see Documentation/watchdog/watchdog-api.txt for 1608 more information. 1609 1610config BOOKE_WDT_DEFAULT_TIMEOUT 1611 int "PowerPC Book-E Watchdog Timer Default Timeout" 1612 depends on BOOKE_WDT 1613 default 38 if PPC_FSL_BOOK3E 1614 range 0 63 if PPC_FSL_BOOK3E 1615 default 3 if !PPC_FSL_BOOK3E 1616 range 0 3 if !PPC_FSL_BOOK3E 1617 help 1618 Select the default watchdog timer period to be used by the PowerPC 1619 Book-E watchdog driver. A watchdog "event" occurs when the bit 1620 position represented by this number transitions from zero to one. 1621 1622 For Freescale Book-E processors, this is a number between 0 and 63. 1623 For other Book-E processors, this is a number between 0 and 3. 1624 1625 The value can be overridden by the wdt_period command-line parameter. 1626 1627config MEN_A21_WDT 1628 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 1629 select WATCHDOG_CORE 1630 depends on GPIOLIB || COMPILE_TEST 1631 help 1632 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 1633 1634 The driver can also be built as a module. If so, the module will be 1635 called mena21_wdt. 1636 1637 If unsure select N here. 1638 1639# PPC64 Architecture 1640 1641config WATCHDOG_RTAS 1642 tristate "RTAS watchdog" 1643 depends on PPC_RTAS 1644 help 1645 This driver adds watchdog support for the RTAS watchdog. 1646 1647 To compile this driver as a module, choose M here. The module 1648 will be called wdrtas. 1649 1650# S390 Architecture 1651 1652config DIAG288_WATCHDOG 1653 tristate "System z diag288 Watchdog" 1654 depends on S390 1655 select WATCHDOG_CORE 1656 help 1657 IBM s/390 and zSeries machines running under z/VM 5.1 or later 1658 provide a virtual watchdog timer to their guest that cause a 1659 user define Control Program command to be executed after a 1660 timeout. 1661 LPAR provides a very similar interface. This driver handles 1662 both. 1663 1664 To compile this driver as a module, choose M here. The module 1665 will be called diag288_wdt. 1666 1667# SUPERH (sh + sh64) Architecture 1668 1669config SH_WDT 1670 tristate "SuperH Watchdog" 1671 depends on SUPERH && (CPU_SH3 || CPU_SH4) 1672 select WATCHDOG_CORE 1673 help 1674 This driver adds watchdog support for the integrated watchdog in the 1675 SuperH processors. If you have one of these processors and wish 1676 to have watchdog support enabled, say Y, otherwise say N. 1677 1678 As a side note, saying Y here will automatically boost HZ to 1000 1679 so that the timer has a chance to clear the overflow counter. On 1680 slower systems (such as the SH-2 and SH-3) this will likely yield 1681 some performance issues. As such, the WDT should be avoided here 1682 unless it is absolutely necessary. 1683 1684 To compile this driver as a module, choose M here: the 1685 module will be called shwdt. 1686 1687# SPARC Architecture 1688 1689# SPARC64 Architecture 1690 1691config WATCHDOG_CP1XXX 1692 tristate "CP1XXX Hardware Watchdog support" 1693 depends on SPARC64 && PCI 1694 ---help--- 1695 This is the driver for the hardware watchdog timers present on 1696 Sun Microsystems CompactPCI models CP1400 and CP1500. 1697 1698 To compile this driver as a module, choose M here: the 1699 module will be called cpwatchdog. 1700 1701 If you do not have a CompactPCI model CP1400 or CP1500, or 1702 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 1703 you should say N to this option. 1704 1705config WATCHDOG_RIO 1706 tristate "RIO Hardware Watchdog support" 1707 depends on SPARC64 && PCI 1708 help 1709 Say Y here to support the hardware watchdog capability on Sun RIO 1710 machines. The watchdog timeout period is normally one minute but 1711 can be changed with a boot-time parameter. 1712 1713config WATCHDOG_SUN4V 1714 tristate "Sun4v Watchdog support" 1715 select WATCHDOG_CORE 1716 depends on SPARC64 1717 help 1718 Say Y here to support the hypervisor watchdog capability embedded 1719 in the SPARC sun4v architecture. 1720 1721 To compile this driver as a module, choose M here. The module will 1722 be called sun4v_wdt. 1723 1724# XTENSA Architecture 1725 1726# Xen Architecture 1727 1728config XEN_WDT 1729 tristate "Xen Watchdog support" 1730 depends on XEN 1731 help 1732 Say Y here to support the hypervisor watchdog capability provided 1733 by Xen 4.0 and newer. The watchdog timeout period is normally one 1734 minute but can be changed with a boot-time parameter. 1735 1736config UML_WATCHDOG 1737 tristate "UML watchdog" 1738 depends on UML 1739 1740# 1741# ISA-based Watchdog Cards 1742# 1743 1744comment "ISA-based Watchdog Cards" 1745 depends on ISA 1746 1747config PCWATCHDOG 1748 tristate "Berkshire Products ISA-PC Watchdog" 1749 depends on ISA 1750 ---help--- 1751 This is the driver for the Berkshire Products ISA-PC Watchdog card. 1752 This card simply watches your kernel to make sure it doesn't freeze, 1753 and if it does, it reboots your computer after a certain amount of 1754 time. This driver is like the WDT501 driver but for different 1755 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC 1756 watchdog cards can be ordered from <http://www.berkprod.com/>. 1757 1758 To compile this driver as a module, choose M here: the 1759 module will be called pcwd. 1760 1761 Most people will say N. 1762 1763config MIXCOMWD 1764 tristate "Mixcom Watchdog" 1765 depends on ISA 1766 ---help--- 1767 This is a driver for the Mixcom hardware watchdog cards. This 1768 watchdog simply watches your kernel to make sure it doesn't freeze, 1769 and if it does, it reboots your computer after a certain amount of 1770 time. 1771 1772 To compile this driver as a module, choose M here: the 1773 module will be called mixcomwd. 1774 1775 Most people will say N. 1776 1777config WDT 1778 tristate "WDT Watchdog timer" 1779 depends on ISA 1780 ---help--- 1781 If you have a WDT500P or WDT501P watchdog board, say Y here, 1782 otherwise N. It is not possible to probe for this board, which means 1783 that you have to inform the kernel about the IO port and IRQ that 1784 is needed (you can do this via the io and irq parameters) 1785 1786 To compile this driver as a module, choose M here: the 1787 module will be called wdt. 1788 1789# 1790# PCI-based Watchdog Cards 1791# 1792 1793comment "PCI-based Watchdog Cards" 1794 depends on PCI 1795 1796config PCIPCWATCHDOG 1797 tristate "Berkshire Products PCI-PC Watchdog" 1798 depends on PCI 1799 ---help--- 1800 This is the driver for the Berkshire Products PCI-PC Watchdog card. 1801 This card simply watches your kernel to make sure it doesn't freeze, 1802 and if it does, it reboots your computer after a certain amount of 1803 time. The card can also monitor the internal temperature of the PC. 1804 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 1805 1806 To compile this driver as a module, choose M here: the 1807 module will be called pcwd_pci. 1808 1809 Most people will say N. 1810 1811config WDTPCI 1812 tristate "PCI-WDT500/501 Watchdog timer" 1813 depends on PCI 1814 ---help--- 1815 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 1816 1817 If you have a PCI-WDT501 watchdog board then you can enable the 1818 temperature sensor by setting the type parameter to 501. 1819 1820 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 1821 can do this via the tachometer parameter. Only do this if you have a 1822 fan tachometer actually set up. 1823 1824 To compile this driver as a module, choose M here: the 1825 module will be called wdt_pci. 1826 1827# 1828# USB-based Watchdog Cards 1829# 1830 1831comment "USB-based Watchdog Cards" 1832 depends on USB 1833 1834config USBPCWATCHDOG 1835 tristate "Berkshire Products USB-PC Watchdog" 1836 depends on USB 1837 ---help--- 1838 This is the driver for the Berkshire Products USB-PC Watchdog card. 1839 This card simply watches your kernel to make sure it doesn't freeze, 1840 and if it does, it reboots your computer after a certain amount of 1841 time. The card can also monitor the internal temperature of the PC. 1842 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 1843 1844 To compile this driver as a module, choose M here: the 1845 module will be called pcwd_usb. 1846 1847 Most people will say N. 1848 1849comment "Watchdog Pretimeout Governors" 1850 1851config WATCHDOG_PRETIMEOUT_GOV 1852 bool "Enable watchdog pretimeout governors" 1853 help 1854 The option allows to select watchdog pretimeout governors. 1855 1856if WATCHDOG_PRETIMEOUT_GOV 1857 1858choice 1859 prompt "Default Watchdog Pretimeout Governor" 1860 default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC 1861 help 1862 This option selects a default watchdog pretimeout governor. 1863 The governor takes its action, if a watchdog is capable 1864 to report a pretimeout event. 1865 1866config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP 1867 bool "noop" 1868 select WATCHDOG_PRETIMEOUT_GOV_NOOP 1869 help 1870 Use noop watchdog pretimeout governor by default. If noop 1871 governor is selected by a user, write a short message to 1872 the kernel log buffer and don't do any system changes. 1873 1874config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC 1875 bool "panic" 1876 select WATCHDOG_PRETIMEOUT_GOV_PANIC 1877 help 1878 Use panic watchdog pretimeout governor by default, if 1879 a watchdog pretimeout event happens, consider that 1880 a watchdog feeder is dead and reboot is unavoidable. 1881 1882endchoice 1883 1884config WATCHDOG_PRETIMEOUT_GOV_NOOP 1885 tristate "Noop watchdog pretimeout governor" 1886 help 1887 Noop watchdog pretimeout governor, only an informational 1888 message is added to kernel log buffer. 1889 1890config WATCHDOG_PRETIMEOUT_GOV_PANIC 1891 tristate "Panic watchdog pretimeout governor" 1892 help 1893 Panic watchdog pretimeout governor, on watchdog pretimeout 1894 event put the kernel into panic. 1895 1896endif # WATCHDOG_PRETIMEOUT_GOV 1897 1898endif # WATCHDOG 1899