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 SOFT_WATCHDOG_PRETIMEOUT 75 bool "Software watchdog pretimeout governor support" 76 depends on SOFT_WATCHDOG && WATCHDOG_PRETIMEOUT_GOV 77 help 78 Enable this if you want to use pretimeout governors with the software 79 watchdog. Be aware that governors might affect the watchdog because it 80 is purely software, e.g. the panic governor will stall it! 81 82config DA9052_WATCHDOG 83 tristate "Dialog DA9052 Watchdog" 84 depends on PMIC_DA9052 || COMPILE_TEST 85 select WATCHDOG_CORE 86 help 87 Support for the watchdog in the DA9052 PMIC. Watchdog trigger 88 cause system reset. 89 90 Say Y here to include support for the DA9052 watchdog. 91 Alternatively say M to compile the driver as a module, 92 which will be called da9052_wdt. 93 94config DA9055_WATCHDOG 95 tristate "Dialog Semiconductor DA9055 Watchdog" 96 depends on MFD_DA9055 || COMPILE_TEST 97 select WATCHDOG_CORE 98 help 99 If you say yes here you get support for watchdog on the Dialog 100 Semiconductor DA9055 PMIC. 101 102 This driver can also be built as a module. If so, the module 103 will be called da9055_wdt. 104 105config DA9063_WATCHDOG 106 tristate "Dialog DA9063 Watchdog" 107 depends on MFD_DA9063 || COMPILE_TEST 108 select WATCHDOG_CORE 109 help 110 Support for the watchdog in the DA9063 PMIC. 111 112 This driver can be built as a module. The module name is da9063_wdt. 113 114config DA9062_WATCHDOG 115 tristate "Dialog DA9062/61 Watchdog" 116 depends on MFD_DA9062 || COMPILE_TEST 117 select WATCHDOG_CORE 118 help 119 Support for the watchdog in the DA9062 and DA9061 PMICs. 120 121 This driver can be built as a module. The module name is da9062_wdt. 122 123config GPIO_WATCHDOG 124 tristate "Watchdog device controlled through GPIO-line" 125 depends on OF_GPIO 126 select WATCHDOG_CORE 127 help 128 If you say yes here you get support for watchdog device 129 controlled through GPIO-line. 130 131config GPIO_WATCHDOG_ARCH_INITCALL 132 bool "Register the watchdog as early as possible" 133 depends on GPIO_WATCHDOG=y 134 help 135 In some situations, the default initcall level (module_init) 136 in not early enough in the boot process to avoid the watchdog 137 to be triggered. 138 If you say yes here, the initcall level would be raised to 139 arch_initcall. 140 If in doubt, say N. 141 142config MENF21BMC_WATCHDOG 143 tristate "MEN 14F021P00 BMC Watchdog" 144 depends on MFD_MENF21BMC || COMPILE_TEST 145 depends on I2C 146 select WATCHDOG_CORE 147 help 148 Say Y here to include support for the MEN 14F021P00 BMC Watchdog. 149 150 This driver can also be built as a module. If so the module 151 will be called menf21bmc_wdt. 152 153config TANGOX_WATCHDOG 154 tristate "Sigma Designs SMP86xx/SMP87xx watchdog" 155 select WATCHDOG_CORE 156 depends on ARCH_TANGO || COMPILE_TEST 157 depends on HAS_IOMEM 158 help 159 Support for the watchdog in Sigma Designs SMP86xx (tango3) 160 and SMP87xx (tango4) family chips. 161 162 This driver can be built as a module. The module name is tangox_wdt. 163 164config WDAT_WDT 165 tristate "ACPI Watchdog Action Table (WDAT)" 166 depends on ACPI 167 select WATCHDOG_CORE 168 select ACPI_WATCHDOG 169 help 170 This driver adds support for systems with ACPI Watchdog Action 171 Table (WDAT) table. Servers typically have this but it can be 172 found on some desktop machines as well. This driver will take 173 over the native iTCO watchdog driver found on many Intel CPUs. 174 175 To compile this driver as module, choose M here: the module will 176 be called wdat_wdt. 177 178config WM831X_WATCHDOG 179 tristate "WM831x watchdog" 180 depends on MFD_WM831X 181 select WATCHDOG_CORE 182 help 183 Support for the watchdog in the WM831x AudioPlus PMICs. When 184 the watchdog triggers the system will be reset. 185 186config WM8350_WATCHDOG 187 tristate "WM8350 watchdog" 188 depends on MFD_WM8350 189 select WATCHDOG_CORE 190 help 191 Support for the watchdog in the WM8350 AudioPlus PMIC. When 192 the watchdog triggers the system will be reset. 193 194config XILINX_WATCHDOG 195 tristate "Xilinx Watchdog timer" 196 depends on HAS_IOMEM 197 select WATCHDOG_CORE 198 help 199 Watchdog driver for the xps_timebase_wdt ip core. 200 201 To compile this driver as a module, choose M here: the 202 module will be called of_xilinx_wdt. 203 204config ZIIRAVE_WATCHDOG 205 tristate "Zodiac RAVE Watchdog Timer" 206 depends on I2C 207 select WATCHDOG_CORE 208 help 209 Watchdog driver for the Zodiac Aerospace RAVE Switch Watchdog 210 Processor. 211 212 To compile this driver as a module, choose M here: the 213 module will be called ziirave_wdt. 214 215# ALPHA Architecture 216 217# ARM Architecture 218 219config ARM_SP805_WATCHDOG 220 tristate "ARM SP805 Watchdog" 221 depends on (ARM || ARM64 || COMPILE_TEST) && ARM_AMBA 222 select WATCHDOG_CORE 223 help 224 ARM Primecell SP805 Watchdog timer. This will reboot your system when 225 the timeout is reached. 226 227config ARM_SBSA_WATCHDOG 228 tristate "ARM SBSA Generic Watchdog" 229 depends on ARM64 230 depends on ARM_ARCH_TIMER 231 select WATCHDOG_CORE 232 help 233 ARM SBSA Generic Watchdog has two stage timeouts: 234 the first signal (WS0) is for alerting the system by interrupt, 235 the second one (WS1) is a real hardware reset. 236 More details: ARM DEN0029B - Server Base System Architecture (SBSA) 237 238 This driver can operate ARM SBSA Generic Watchdog as a single stage 239 or a two stages watchdog, it depends on the module parameter "action". 240 241 Note: the maximum timeout in the two stages mode is half of that in 242 the single stage mode. 243 244 To compile this driver as module, choose M here: The module 245 will be called sbsa_gwdt. 246 247config ASM9260_WATCHDOG 248 tristate "Alphascale ASM9260 watchdog" 249 depends on MACH_ASM9260 || COMPILE_TEST 250 depends on OF 251 select WATCHDOG_CORE 252 select RESET_CONTROLLER 253 help 254 Watchdog timer embedded into Alphascale asm9260 chips. This will reboot your 255 system when the timeout is reached. 256 257config AT91RM9200_WATCHDOG 258 tristate "AT91RM9200 watchdog" 259 depends on (SOC_AT91RM9200 && MFD_SYSCON) || COMPILE_TEST 260 help 261 Watchdog timer embedded into AT91RM9200 chips. This will reboot your 262 system when the timeout is reached. 263 264config AT91SAM9X_WATCHDOG 265 tristate "AT91SAM9X / AT91CAP9 watchdog" 266 depends on ARCH_AT91 || COMPILE_TEST 267 select WATCHDOG_CORE 268 help 269 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will 270 reboot your system when the timeout is reached. 271 272config SAMA5D4_WATCHDOG 273 tristate "Atmel SAMA5D4 Watchdog Timer" 274 depends on ARCH_AT91 || COMPILE_TEST 275 select WATCHDOG_CORE 276 help 277 Atmel SAMA5D4 watchdog timer is embedded into SAMA5D4 chips. 278 Its Watchdog Timer Mode Register can be written more than once. 279 This will reboot your system when the timeout is reached. 280 281config CADENCE_WATCHDOG 282 tristate "Cadence Watchdog Timer" 283 depends on HAS_IOMEM 284 select WATCHDOG_CORE 285 help 286 Say Y here if you want to include support for the watchdog 287 timer in the Xilinx Zynq. 288 289config 21285_WATCHDOG 290 tristate "DC21285 watchdog" 291 depends on FOOTBRIDGE 292 help 293 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y 294 here if you wish to use this. Alternatively say M to compile the 295 driver as a module, which will be called wdt285. 296 297 This driver does not work on all machines. In particular, early CATS 298 boards have hardware problems that will cause the machine to simply 299 lock up if the watchdog fires. 300 301 "If in doubt, leave it out" - say N. 302 303config 977_WATCHDOG 304 tristate "NetWinder WB83C977 watchdog" 305 depends on (FOOTBRIDGE && ARCH_NETWINDER) || (ARM && COMPILE_TEST) 306 help 307 Say Y here to include support for the WB977 watchdog included in 308 NetWinder machines. Alternatively say M to compile the driver as 309 a module, which will be called wdt977. 310 311 Not sure? It's safe to say N. 312 313config GEMINI_WATCHDOG 314 tristate "Gemini watchdog" 315 depends on ARCH_GEMINI 316 select WATCHDOG_CORE 317 help 318 Say Y here if to include support for the watchdog timer 319 embedded in the Cortina Systems Gemini family of devices. 320 321 To compile this driver as a module, choose M here: the 322 module will be called gemini_wdt. 323 324config IXP4XX_WATCHDOG 325 tristate "IXP4xx Watchdog" 326 depends on ARCH_IXP4XX 327 help 328 Say Y here if to include support for the watchdog timer 329 in the Intel IXP4xx network processors. This driver can 330 be built as a module by choosing M. The module will 331 be called ixp4xx_wdt. 332 333 Note: The internal IXP4xx watchdog does a soft CPU reset 334 which doesn't reset any peripherals. There are circumstances 335 where the watchdog will fail to reset the board correctly 336 (e.g., if the boot ROM is in an unreadable state). 337 338 Say N if you are unsure. 339 340config KS8695_WATCHDOG 341 tristate "KS8695 watchdog" 342 depends on ARCH_KS8695 343 help 344 Watchdog timer embedded into KS8695 processor. This will reboot your 345 system when the timeout is reached. 346 347config HAVE_S3C2410_WATCHDOG 348 bool 349 help 350 This will include watchdog timer support for Samsung SoCs. If 351 you want to include watchdog support for any machine, kindly 352 select this in the respective mach-XXXX/Kconfig file. 353 354config S3C2410_WATCHDOG 355 tristate "S3C2410 Watchdog" 356 depends on HAVE_S3C2410_WATCHDOG || COMPILE_TEST 357 select WATCHDOG_CORE 358 select MFD_SYSCON if ARCH_EXYNOS 359 help 360 Watchdog timer block in the Samsung SoCs. This will reboot 361 the system when the timer expires with the watchdog enabled. 362 363 The driver is limited by the speed of the system's PCLK 364 signal, so with reasonably fast systems (PCLK around 50-66MHz) 365 then watchdog intervals of over approximately 20seconds are 366 unavailable. 367 368 The driver can be built as a module by choosing M, and will 369 be called s3c2410_wdt 370 371config SA1100_WATCHDOG 372 tristate "SA1100/PXA2xx watchdog" 373 depends on ARCH_SA1100 || ARCH_PXA 374 help 375 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 376 reboot your system when timeout is reached. 377 378 NOTE: once enabled, this timer cannot be disabled. 379 380 To compile this driver as a module, choose M here: the 381 module will be called sa1100_wdt. 382 383config DW_WATCHDOG 384 tristate "Synopsys DesignWare watchdog" 385 depends on HAS_IOMEM 386 select WATCHDOG_CORE 387 help 388 Say Y here if to include support for the Synopsys DesignWare 389 watchdog timer found in many chips. 390 To compile this driver as a module, choose M here: the 391 module will be called dw_wdt. 392 393config EP93XX_WATCHDOG 394 tristate "EP93xx Watchdog" 395 depends on ARCH_EP93XX || COMPILE_TEST 396 select WATCHDOG_CORE 397 help 398 Say Y here if to include support for the watchdog timer 399 embedded in the Cirrus Logic EP93xx family of devices. 400 401 To compile this driver as a module, choose M here: the 402 module will be called ep93xx_wdt. 403 404config OMAP_WATCHDOG 405 tristate "OMAP Watchdog" 406 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS || COMPILE_TEST 407 select WATCHDOG_CORE 408 help 409 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y' 410 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 411 412config PNX4008_WATCHDOG 413 tristate "LPC32XX Watchdog" 414 depends on ARCH_LPC32XX 415 select WATCHDOG_CORE 416 help 417 Say Y here if to include support for the watchdog timer 418 in the LPC32XX processor. 419 This driver can be built as a module by choosing M. The module 420 will be called pnx4008_wdt. 421 422 Say N if you are unsure. 423 424config IOP_WATCHDOG 425 tristate "IOP Watchdog" 426 depends on ARCH_IOP13XX 427 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X) 428 help 429 Say Y here if to include support for the watchdog timer 430 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can 431 be built as a module by choosing M. The module will 432 be called iop_wdt. 433 434 Note: The IOP13XX watchdog does an Internal Bus Reset which will 435 affect both cores and the peripherals of the IOP. The ATU-X 436 and/or ATUe configuration registers will remain intact, but if 437 operating as an Root Complex and/or Central Resource, the PCI-X 438 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER. 439 440config DAVINCI_WATCHDOG 441 tristate "DaVinci watchdog" 442 depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST 443 select WATCHDOG_CORE 444 help 445 Say Y here if to include support for the watchdog timer 446 in the DaVinci DM644x/DM646x or Keystone processors. 447 To compile this driver as a module, choose M here: the 448 module will be called davinci_wdt. 449 450 NOTE: once enabled, this timer cannot be disabled. 451 Say N if you are unsure. 452 453config ORION_WATCHDOG 454 tristate "Orion watchdog" 455 depends on ARCH_ORION5X || ARCH_DOVE || MACH_DOVE || ARCH_MVEBU || COMPILE_TEST 456 depends on ARM 457 select WATCHDOG_CORE 458 help 459 Say Y here if to include support for the watchdog timer 460 in the Marvell Orion5x and Kirkwood ARM SoCs. 461 To compile this driver as a module, choose M here: the 462 module will be called orion_wdt. 463 464config RN5T618_WATCHDOG 465 tristate "Ricoh RN5T618 watchdog" 466 depends on MFD_RN5T618 || COMPILE_TEST 467 select WATCHDOG_CORE 468 help 469 If you say yes here you get support for watchdog on the Ricoh 470 RN5T618 PMIC. 471 472 This driver can also be built as a module. If so, the module 473 will be called rn5t618_wdt. 474 475config SUNXI_WATCHDOG 476 tristate "Allwinner SoCs watchdog support" 477 depends on ARCH_SUNXI || COMPILE_TEST 478 select WATCHDOG_CORE 479 help 480 Say Y here to include support for the watchdog timer 481 in Allwinner SoCs. 482 To compile this driver as a module, choose M here: the 483 module will be called sunxi_wdt. 484 485config COH901327_WATCHDOG 486 bool "ST-Ericsson COH 901 327 watchdog" 487 depends on ARCH_U300 || (ARM && COMPILE_TEST) 488 default y if MACH_U300 489 select WATCHDOG_CORE 490 help 491 Say Y here to include Watchdog timer support for the 492 watchdog embedded into the ST-Ericsson U300 series platforms. 493 This watchdog is used to reset the system and thus cannot be 494 compiled as a module. 495 496config TWL4030_WATCHDOG 497 tristate "TWL4030 Watchdog" 498 depends on TWL4030_CORE 499 select WATCHDOG_CORE 500 help 501 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 502 watchdog timer support for TWL4030 chips. 503 504config STMP3XXX_RTC_WATCHDOG 505 tristate "Freescale STMP3XXX & i.MX23/28 watchdog" 506 depends on RTC_DRV_STMP || COMPILE_TEST 507 select WATCHDOG_CORE 508 help 509 Say Y here to include support for the watchdog timer inside 510 the RTC for the STMP37XX/378X or i.MX23/28 SoC. 511 To compile this driver as a module, choose M here: the 512 module will be called stmp3xxx_rtc_wdt. 513 514config NUC900_WATCHDOG 515 tristate "Nuvoton NUC900 watchdog" 516 depends on ARCH_W90X900 || COMPILE_TEST 517 help 518 Say Y here if to include support for the watchdog timer 519 for the Nuvoton NUC900 series SoCs. 520 To compile this driver as a module, choose M here: the 521 module will be called nuc900_wdt. 522 523config TS4800_WATCHDOG 524 tristate "TS-4800 Watchdog" 525 depends on HAS_IOMEM && OF 526 depends on SOC_IMX51 || COMPILE_TEST 527 select WATCHDOG_CORE 528 select MFD_SYSCON 529 help 530 Technologic Systems TS-4800 has watchdog timer implemented in 531 an external FPGA. Say Y here if you want to support for the 532 watchdog timer on TS-4800 board. 533 534config TS72XX_WATCHDOG 535 tristate "TS-72XX SBC Watchdog" 536 depends on MACH_TS72XX || COMPILE_TEST 537 help 538 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 539 watchdog timer implemented in a external CPLD chip. Say Y here 540 if you want to support for the watchdog timer on TS-72XX boards. 541 542 To compile this driver as a module, choose M here: the 543 module will be called ts72xx_wdt. 544 545config MAX63XX_WATCHDOG 546 tristate "Max63xx watchdog" 547 depends on HAS_IOMEM 548 select WATCHDOG_CORE 549 help 550 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 551 552config MAX77620_WATCHDOG 553 tristate "Maxim Max77620 Watchdog Timer" 554 depends on MFD_MAX77620 || COMPILE_TEST 555 help 556 This is the driver for the Max77620 watchdog timer. 557 Say 'Y' here to enable the watchdog timer support for 558 MAX77620 chips. To compile this driver as a module, 559 choose M here: the module will be called max77620_wdt. 560 561config IMX2_WDT 562 tristate "IMX2+ Watchdog" 563 depends on ARCH_MXC || ARCH_LAYERSCAPE || COMPILE_TEST 564 select REGMAP_MMIO 565 select WATCHDOG_CORE 566 help 567 This is the driver for the hardware watchdog 568 on the Freescale IMX2 and later processors. 569 If you have one of these processors and wish to have 570 watchdog support enabled, say Y, otherwise say N. 571 572 To compile this driver as a module, choose M here: the 573 module will be called imx2_wdt. 574 575config UX500_WATCHDOG 576 tristate "ST-Ericsson Ux500 watchdog" 577 depends on MFD_DB8500_PRCMU 578 select WATCHDOG_CORE 579 default y 580 help 581 Say Y here to include Watchdog timer support for the watchdog 582 existing in the prcmu of ST-Ericsson Ux500 series platforms. 583 584 To compile this driver as a module, choose M here: the 585 module will be called ux500_wdt. 586 587config RETU_WATCHDOG 588 tristate "Retu watchdog" 589 depends on MFD_RETU 590 select WATCHDOG_CORE 591 help 592 Retu watchdog driver for Nokia Internet Tablets (770, N800, 593 N810). At least on N800 the watchdog cannot be disabled, so 594 this driver is essential and you should enable it. 595 596 To compile this driver as a module, choose M here: the 597 module will be called retu_wdt. 598 599config MOXART_WDT 600 tristate "MOXART watchdog" 601 depends on ARCH_MOXART || COMPILE_TEST 602 help 603 Say Y here to include Watchdog timer support for the watchdog 604 existing on the MOXA ART SoC series platforms. 605 606 To compile this driver as a module, choose M here: the 607 module will be called moxart_wdt. 608 609config SIRFSOC_WATCHDOG 610 tristate "SiRFSOC watchdog" 611 depends on ARCH_SIRF || COMPILE_TEST 612 select WATCHDOG_CORE 613 default y 614 help 615 Support for CSR SiRFprimaII and SiRFatlasVI watchdog. When 616 the watchdog triggers the system will be reset. 617 618config ST_LPC_WATCHDOG 619 tristate "STMicroelectronics LPC Watchdog" 620 depends on ARCH_STI || COMPILE_TEST 621 depends on OF 622 select WATCHDOG_CORE 623 help 624 Say Y here to include STMicroelectronics Low Power Controller 625 (LPC) based Watchdog timer support. 626 627 To compile this driver as a module, choose M here: the 628 module will be called st_lpc_wdt. 629 630config TEGRA_WATCHDOG 631 tristate "Tegra watchdog" 632 depends on (ARCH_TEGRA || COMPILE_TEST) && HAS_IOMEM 633 select WATCHDOG_CORE 634 help 635 Say Y here to include support for the watchdog timer 636 embedded in NVIDIA Tegra SoCs. 637 638 To compile this driver as a module, choose M here: the 639 module will be called tegra_wdt. 640 641config QCOM_WDT 642 tristate "QCOM watchdog" 643 depends on HAS_IOMEM 644 depends on ARCH_QCOM || COMPILE_TEST 645 select WATCHDOG_CORE 646 help 647 Say Y here to include Watchdog timer support for the watchdog found 648 on QCOM chipsets. Currently supported targets are the MSM8960, 649 APQ8064, and IPQ8064. 650 651 To compile this driver as a module, choose M here: the 652 module will be called qcom_wdt. 653 654config MESON_GXBB_WATCHDOG 655 tristate "Amlogic Meson GXBB SoCs watchdog support" 656 depends on ARCH_MESON || COMPILE_TEST 657 select WATCHDOG_CORE 658 help 659 Say Y here to include support for the watchdog timer 660 in Amlogic Meson GXBB SoCs. 661 To compile this driver as a module, choose M here: the 662 module will be called meson_gxbb_wdt. 663 664config MESON_WATCHDOG 665 tristate "Amlogic Meson SoCs watchdog support" 666 depends on ARCH_MESON || COMPILE_TEST 667 select WATCHDOG_CORE 668 help 669 Say Y here to include support for the watchdog timer 670 in Amlogic Meson SoCs. 671 To compile this driver as a module, choose M here: the 672 module will be called meson_wdt. 673 674config MEDIATEK_WATCHDOG 675 tristate "Mediatek SoCs watchdog support" 676 depends on ARCH_MEDIATEK || COMPILE_TEST 677 select WATCHDOG_CORE 678 help 679 Say Y here to include support for the watchdog timer 680 in Mediatek SoCs. 681 To compile this driver as a module, choose M here: the 682 module will be called mtk_wdt. 683 684config DIGICOLOR_WATCHDOG 685 tristate "Conexant Digicolor SoCs watchdog support" 686 depends on ARCH_DIGICOLOR || COMPILE_TEST 687 select WATCHDOG_CORE 688 help 689 Say Y here to include support for the watchdog timer 690 in Conexant Digicolor SoCs. 691 To compile this driver as a module, choose M here: the 692 module will be called digicolor_wdt. 693 694config LPC18XX_WATCHDOG 695 tristate "LPC18xx/43xx Watchdog" 696 depends on ARCH_LPC18XX || COMPILE_TEST 697 depends on HAS_IOMEM 698 select WATCHDOG_CORE 699 help 700 Say Y here if to include support for the watchdog timer 701 in NXP LPC SoCs family, which includes LPC18xx/LPC43xx 702 processors. 703 To compile this driver as a module, choose M here: the 704 module will be called lpc18xx_wdt. 705 706config ATLAS7_WATCHDOG 707 tristate "CSRatlas7 watchdog" 708 depends on ARCH_ATLAS7 || COMPILE_TEST 709 help 710 Say Y here to include Watchdog timer support for the watchdog 711 existing on the CSRatlas7 series platforms. 712 713 To compile this driver as a module, choose M here: the 714 module will be called atlas7_wdt. 715 716config RENESAS_WDT 717 tristate "Renesas WDT Watchdog" 718 depends on ARCH_RENESAS || COMPILE_TEST 719 select WATCHDOG_CORE 720 help 721 This driver adds watchdog support for the integrated watchdogs in the 722 Renesas R-Car and other SH-Mobile SoCs (usually named RWDT or SWDT). 723 724config ASPEED_WATCHDOG 725 tristate "Aspeed 2400 watchdog support" 726 depends on ARCH_ASPEED || COMPILE_TEST 727 select WATCHDOG_CORE 728 help 729 Say Y here to include support for the watchdog timer 730 in Apseed BMC SoCs. 731 732 This driver is required to reboot the SoC. 733 734 To compile this driver as a module, choose M here: the 735 module will be called aspeed_wdt. 736 737config ZX2967_WATCHDOG 738 tristate "ZTE zx2967 SoCs watchdog support" 739 depends on ARCH_ZX 740 select WATCHDOG_CORE 741 help 742 Say Y here to include support for the watchdog timer 743 in ZTE zx2967 SoCs. 744 To compile this driver as a module, choose M here: the 745 module will be called zx2967_wdt. 746 747# AVR32 Architecture 748 749config AT32AP700X_WDT 750 tristate "AT32AP700x watchdog" 751 depends on CPU_AT32AP700X || COMPILE_TEST 752 help 753 Watchdog timer embedded into AT32AP700x devices. This will reboot 754 your system when the timeout is reached. 755 756# BLACKFIN Architecture 757 758config BFIN_WDT 759 tristate "Blackfin On-Chip Watchdog Timer" 760 depends on BLACKFIN 761 ---help--- 762 If you say yes here you will get support for the Blackfin On-Chip 763 Watchdog Timer. If you have one of these processors and wish to 764 have watchdog support enabled, say Y, otherwise say N. 765 766 To compile this driver as a module, choose M here: the 767 module will be called bfin_wdt. 768 769# CRIS Architecture 770 771# FRV Architecture 772 773# X86 (i386 + ia64 + x86_64) Architecture 774 775config ACQUIRE_WDT 776 tristate "Acquire SBC Watchdog Timer" 777 depends on X86 778 ---help--- 779 This is the driver for the hardware watchdog on Single Board 780 Computers produced by Acquire Inc (and others). This watchdog 781 simply watches your kernel to make sure it doesn't freeze, and if 782 it does, it reboots your computer after a certain amount of time. 783 784 To compile this driver as a module, choose M here: the 785 module will be called acquirewdt. 786 787 Most people will say N. 788 789config ADVANTECH_WDT 790 tristate "Advantech SBC Watchdog Timer" 791 depends on X86 792 help 793 If you are configuring a Linux kernel for the Advantech single-board 794 computer, say `Y' here to support its built-in watchdog timer 795 feature. More information can be found at 796 <http://www.advantech.com.tw/products/> 797 798config ALIM1535_WDT 799 tristate "ALi M1535 PMU Watchdog Timer" 800 depends on X86 && PCI 801 ---help--- 802 This is the driver for the hardware watchdog on the ALi M1535 PMU. 803 804 To compile this driver as a module, choose M here: the 805 module will be called alim1535_wdt. 806 807 Most people will say N. 808 809config ALIM7101_WDT 810 tristate "ALi M7101 PMU Computer Watchdog" 811 depends on PCI 812 help 813 This is the driver for the hardware watchdog on the ALi M7101 PMU 814 as used in the x86 Cobalt servers and also found in some 815 SPARC Netra servers too. 816 817 To compile this driver as a module, choose M here: the 818 module will be called alim7101_wdt. 819 820 Most people will say N. 821 822config EBC_C384_WDT 823 tristate "WinSystems EBC-C384 Watchdog Timer" 824 depends on X86 && ISA_BUS_API 825 select WATCHDOG_CORE 826 help 827 Enables watchdog timer support for the watchdog timer on the 828 WinSystems EBC-C384 motherboard. The timeout may be configured via 829 the timeout module parameter. 830 831config F71808E_WDT 832 tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog" 833 depends on X86 834 help 835 This is the driver for the hardware watchdog on the Fintek 836 F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers. 837 838 You can compile this driver directly into the kernel, or use 839 it as a module. The module will be called f71808e_wdt. 840 841config SP5100_TCO 842 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 843 depends on X86 && PCI 844 ---help--- 845 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 846 (Total Cost of Ownership) timer is a watchdog timer that will reboot 847 the machine after its expiration. The expiration time can be 848 configured with the "heartbeat" parameter. 849 850 To compile this driver as a module, choose M here: the 851 module will be called sp5100_tco. 852 853config GEODE_WDT 854 tristate "AMD Geode CS5535/CS5536 Watchdog" 855 depends on CS5535_MFGPT 856 help 857 This driver enables a watchdog capability built into the 858 CS5535/CS5536 companion chips for the AMD Geode GX and LX 859 processors. This watchdog watches your kernel to make sure 860 it doesn't freeze, and if it does, it reboots your computer after 861 a certain amount of time. 862 863 You can compile this driver directly into the kernel, or use 864 it as a module. The module will be called geodewdt. 865 866config SC520_WDT 867 tristate "AMD Elan SC520 processor Watchdog" 868 depends on MELAN || COMPILE_TEST 869 help 870 This is the driver for the hardware watchdog built in to the 871 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 872 This watchdog simply watches your kernel to make sure it doesn't 873 freeze, and if it does, it reboots your computer after a certain 874 amount of time. 875 876 You can compile this driver directly into the kernel, or use 877 it as a module. The module will be called sc520_wdt. 878 879config SBC_FITPC2_WATCHDOG 880 tristate "Compulab SBC-FITPC2 watchdog" 881 depends on X86 882 ---help--- 883 This is the driver for the built-in watchdog timer on the fit-PC2, 884 fit-PC2i, CM-iAM single-board computers made by Compulab. 885 886 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux. 887 When "Watchdog Timer Value" enabled one can set 31-255 s operational range. 888 889 Entering BIOS setup temporary disables watchdog operation regardless to current state, 890 so system will not be restarted while user in BIOS setup. 891 892 Once watchdog was enabled the system will be restarted every 893 "Watchdog Timer Value" period, so to prevent it user can restart or 894 disable the watchdog. 895 896 To compile this driver as a module, choose M here: the 897 module will be called sbc_fitpc2_wdt. 898 899 Most people will say N. 900 901config EUROTECH_WDT 902 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 903 depends on X86 904 help 905 Enable support for the watchdog timer on the Eurotech CPU-1220 and 906 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 907 information are at <http://www.eurotech.it/>. 908 909config IB700_WDT 910 tristate "IB700 SBC Watchdog Timer" 911 depends on X86 912 ---help--- 913 This is the driver for the hardware watchdog on the IB700 Single 914 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog 915 simply watches your kernel to make sure it doesn't freeze, and if 916 it does, it reboots your computer after a certain amount of time. 917 918 This driver is like the WDT501 driver but for slightly different hardware. 919 920 To compile this driver as a module, choose M here: the 921 module will be called ib700wdt. 922 923 Most people will say N. 924 925config IBMASR 926 tristate "IBM Automatic Server Restart" 927 depends on X86 928 help 929 This is the driver for the IBM Automatic Server Restart watchdog 930 timer built-in into some eServer xSeries machines. 931 932 To compile this driver as a module, choose M here: the 933 module will be called ibmasr. 934 935config WAFER_WDT 936 tristate "ICP Single Board Computer Watchdog Timer" 937 depends on X86 938 help 939 This is a driver for the hardware watchdog on the ICP Single 940 Board Computer. This driver is working on (at least) the following 941 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 942 943 To compile this driver as a module, choose M here: the 944 module will be called wafer5823wdt. 945 946config I6300ESB_WDT 947 tristate "Intel 6300ESB Timer/Watchdog" 948 depends on PCI 949 ---help--- 950 Hardware driver for the watchdog timer built into the Intel 951 6300ESB controller hub. 952 953 To compile this driver as a module, choose M here: the 954 module will be called i6300esb. 955 956config IE6XX_WDT 957 tristate "Intel Atom E6xx Watchdog" 958 depends on X86 && PCI 959 select WATCHDOG_CORE 960 select MFD_CORE 961 select LPC_SCH 962 ---help--- 963 Hardware driver for the watchdog timer built into the Intel 964 Atom E6XX (TunnelCreek) processor. 965 966 To compile this driver as a module, choose M here: the 967 module will be called ie6xx_wdt. 968 969config INTEL_SCU_WATCHDOG 970 bool "Intel SCU Watchdog for Mobile Platforms" 971 depends on X86_INTEL_MID 972 ---help--- 973 Hardware driver for the watchdog time built into the Intel SCU 974 for Intel Mobile Platforms. 975 976 To compile this driver as a module, choose M here. 977 978config INTEL_MID_WATCHDOG 979 tristate "Intel MID Watchdog Timer" 980 depends on X86_INTEL_MID 981 select WATCHDOG_CORE 982 ---help--- 983 Watchdog timer driver built into the Intel SCU for Intel MID 984 Platforms. 985 986 This driver currently supports only the watchdog evolution 987 implementation in SCU, available for Merrifield generation. 988 989 To compile this driver as a module, choose M here. 990 991config ITCO_WDT 992 tristate "Intel TCO Timer/Watchdog" 993 depends on (X86 || IA64) && PCI 994 select WATCHDOG_CORE 995 depends on I2C || I2C=n 996 select LPC_ICH if !EXPERT 997 select I2C_I801 if !EXPERT && I2C 998 ---help--- 999 Hardware driver for the intel TCO timer based watchdog devices. 1000 These drivers are included in the Intel 82801 I/O Controller 1001 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 1002 controller hub. 1003 1004 The TCO (Total Cost of Ownership) timer is a watchdog timer 1005 that will reboot the machine after its second expiration. The 1006 expiration time can be configured with the "heartbeat" parameter. 1007 1008 On some motherboards the driver may fail to reset the chipset's 1009 NO_REBOOT flag which prevents the watchdog from rebooting the 1010 machine. If this is the case you will get a kernel message like 1011 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1012 1013 To compile this driver as a module, choose M here: the 1014 module will be called iTCO_wdt. 1015 1016config ITCO_VENDOR_SUPPORT 1017 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 1018 depends on ITCO_WDT 1019 ---help--- 1020 Add vendor specific support to the intel TCO timer based watchdog 1021 devices. At this moment we only have additional support for some 1022 SuperMicro Inc. motherboards. 1023 1024config IT8712F_WDT 1025 tristate "IT8712F (Smart Guardian) Watchdog Timer" 1026 depends on X86 1027 ---help--- 1028 This is the driver for the built-in watchdog timer on the IT8712F 1029 Super I/0 chipset used on many motherboards. 1030 1031 If the driver does not work, then make sure that the game port in 1032 the BIOS is enabled. 1033 1034 To compile this driver as a module, choose M here: the 1035 module will be called it8712f_wdt. 1036 1037config IT87_WDT 1038 tristate "IT87 Watchdog Timer" 1039 depends on X86 1040 ---help--- 1041 This is the driver for the hardware watchdog on the ITE IT8620, 1042 IT8702, IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 and IT8728 1043 Super I/O chips. 1044 1045 If the driver does not work, then make sure that the game port in 1046 the BIOS is enabled. 1047 1048 This watchdog simply watches your kernel to make sure it doesn't 1049 freeze, and if it does, it reboots your computer after a certain 1050 amount of time. 1051 1052 To compile this driver as a module, choose M here: the module will 1053 be called it87_wdt. 1054 1055config HP_WATCHDOG 1056 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 1057 depends on X86 && PCI 1058 help 1059 A software monitoring watchdog and NMI sourcing driver. This driver 1060 will detect lockups and provide a stack trace. This is a driver that 1061 will only load on an HP ProLiant system with a minimum of iLO2 support. 1062 To compile this driver as a module, choose M here: the module will be 1063 called hpwdt. 1064 1065config KEMPLD_WDT 1066 tristate "Kontron COM Watchdog Timer" 1067 depends on MFD_KEMPLD 1068 select WATCHDOG_CORE 1069 help 1070 Support for the PLD watchdog on some Kontron ETX and COMexpress 1071 (ETXexpress) modules 1072 1073 This driver can also be built as a module. If so, the module will be 1074 called kempld_wdt. 1075 1076config HPWDT_NMI_DECODING 1077 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 1078 depends on HP_WATCHDOG 1079 default y 1080 help 1081 When an NMI occurs this feature will make the necessary BIOS calls to 1082 log the cause of the NMI. 1083 1084config SC1200_WDT 1085 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 1086 depends on X86 1087 help 1088 This is a driver for National Semiconductor PC87307/PC97307 hardware 1089 watchdog cards as found on the SC1200. This watchdog is mainly used 1090 for power management purposes and can be used to power down the device 1091 during inactivity periods (includes interrupt activity monitoring). 1092 1093 To compile this driver as a module, choose M here: the 1094 module will be called sc1200wdt. 1095 1096 Most people will say N. 1097 1098config SCx200_WDT 1099 tristate "National Semiconductor SCx200 Watchdog" 1100 depends on SCx200 && PCI 1101 help 1102 Enable the built-in watchdog timer support on the National 1103 Semiconductor SCx200 processors. 1104 1105 If compiled as a module, it will be called scx200_wdt. 1106 1107config PC87413_WDT 1108 tristate "NS PC87413 watchdog" 1109 depends on X86 1110 ---help--- 1111 This is the driver for the hardware watchdog on the PC87413 chipset 1112 This watchdog simply watches your kernel to make sure it doesn't 1113 freeze, and if it does, it reboots your computer after a certain 1114 amount of time. 1115 1116 To compile this driver as a module, choose M here: the 1117 module will be called pc87413_wdt. 1118 1119 Most people will say N. 1120 1121config NV_TCO 1122 tristate "nVidia TCO Timer/Watchdog" 1123 depends on X86 && PCI 1124 ---help--- 1125 Hardware driver for the TCO timer built into the nVidia Hub family 1126 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 1127 watchdog timer that will reboot the machine after its second 1128 expiration. The expiration time can be configured with the 1129 "heartbeat" parameter. 1130 1131 On some motherboards the driver may fail to reset the chipset's 1132 NO_REBOOT flag which prevents the watchdog from rebooting the 1133 machine. If this is the case you will get a kernel message like 1134 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 1135 1136 To compile this driver as a module, choose M here: the 1137 module will be called nv_tco. 1138 1139config RDC321X_WDT 1140 tristate "RDC R-321x SoC watchdog" 1141 depends on X86_RDC321X || COMPILE_TEST 1142 depends on PCI 1143 help 1144 This is the driver for the built in hardware watchdog 1145 in the RDC R-321x SoC. 1146 1147 To compile this driver as a module, choose M here: the 1148 module will be called rdc321x_wdt. 1149 1150config 60XX_WDT 1151 tristate "SBC-60XX Watchdog Timer" 1152 depends on X86 1153 help 1154 This driver can be used with the watchdog timer found on some 1155 single board computers, namely the 6010 PII based computer. 1156 It may well work with other cards. It reads port 0x443 to enable 1157 and re-set the watchdog timer, and reads port 0x45 to disable 1158 the watchdog. If you have a card that behave in similar ways, 1159 you can probably make this driver work with your card as well. 1160 1161 You can compile this driver directly into the kernel, or use 1162 it as a module. The module will be called sbc60xxwdt. 1163 1164config SBC8360_WDT 1165 tristate "SBC8360 Watchdog Timer" 1166 depends on X86_32 1167 ---help--- 1168 1169 This is the driver for the hardware watchdog on the SBC8360 Single 1170 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 1171 1172 To compile this driver as a module, choose M here: the 1173 module will be called sbc8360. 1174 1175 Most people will say N. 1176 1177config SBC7240_WDT 1178 tristate "SBC Nano 7240 Watchdog Timer" 1179 depends on X86_32 && !UML 1180 ---help--- 1181 This is the driver for the hardware watchdog found on the IEI 1182 single board computers EPIC Nano 7240 (and likely others). This 1183 watchdog simply watches your kernel to make sure it doesn't freeze, 1184 and if it does, it reboots your computer after a certain amount of 1185 time. 1186 1187 To compile this driver as a module, choose M here: the 1188 module will be called sbc7240_wdt. 1189 1190config CPU5_WDT 1191 tristate "SMA CPU5 Watchdog" 1192 depends on X86 1193 ---help--- 1194 TBD. 1195 To compile this driver as a module, choose M here: the 1196 module will be called cpu5wdt. 1197 1198config SMSC_SCH311X_WDT 1199 tristate "SMSC SCH311X Watchdog Timer" 1200 depends on X86 1201 ---help--- 1202 This is the driver for the hardware watchdog timer on the 1203 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 1204 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 1205 serial ports). 1206 1207 To compile this driver as a module, choose M here: the 1208 module will be called sch311x_wdt. 1209 1210config SMSC37B787_WDT 1211 tristate "Winbond SMsC37B787 Watchdog Timer" 1212 depends on X86 1213 ---help--- 1214 This is the driver for the hardware watchdog component on the 1215 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 1216 from Vision Systems and maybe others. 1217 1218 This watchdog simply watches your kernel to make sure it doesn't 1219 freeze, and if it does, it reboots your computer after a certain 1220 amount of time. 1221 1222 Usually a userspace daemon will notify the kernel WDT driver that 1223 userspace is still alive, at regular intervals. 1224 1225 To compile this driver as a module, choose M here: the 1226 module will be called smsc37b787_wdt. 1227 1228 Most people will say N. 1229 1230config VIA_WDT 1231 tristate "VIA Watchdog Timer" 1232 depends on X86 && PCI 1233 select WATCHDOG_CORE 1234 ---help--- 1235 This is the driver for the hardware watchdog timer on VIA 1236 southbridge chipset CX700, VX800/VX820 or VX855/VX875. 1237 1238 To compile this driver as a module, choose M here; the module 1239 will be called via_wdt. 1240 1241 Most people will say N. 1242 1243config W83627HF_WDT 1244 tristate "Watchdog timer for W83627HF/W83627DHG and compatibles" 1245 depends on X86 1246 select WATCHDOG_CORE 1247 ---help--- 1248 This is the driver for the hardware watchdog on the following 1249 Super I/O chips. 1250 W83627DHG/DHG-P/EHF/EHG/F/G/HF/S/SF/THF/UHG/UG 1251 W83637HF 1252 W83667HG/HG-B 1253 W83687THF 1254 W83697HF 1255 W83697UG 1256 NCT6775 1257 NCT6776 1258 NCT6779 1259 NCT6791 1260 NCT6792 1261 NCT6102D/04D/06D 1262 1263 This watchdog simply watches your kernel to make sure it doesn't 1264 freeze, and if it does, it reboots your computer after a certain 1265 amount of time. 1266 1267 To compile this driver as a module, choose M here: the 1268 module will be called w83627hf_wdt. 1269 1270 Most people will say N. 1271 1272config W83877F_WDT 1273 tristate "W83877F (EMACS) Watchdog Timer" 1274 depends on X86 1275 ---help--- 1276 This is the driver for the hardware watchdog on the W83877F chipset 1277 as used in EMACS PC-104 motherboards (and likely others). This 1278 watchdog simply watches your kernel to make sure it doesn't freeze, 1279 and if it does, it reboots your computer after a certain amount of 1280 time. 1281 1282 To compile this driver as a module, choose M here: the 1283 module will be called w83877f_wdt. 1284 1285 Most people will say N. 1286 1287config W83977F_WDT 1288 tristate "W83977F (PCM-5335) Watchdog Timer" 1289 depends on X86 1290 ---help--- 1291 This is the driver for the hardware watchdog on the W83977F I/O chip 1292 as used in AAEON's PCM-5335 SBC (and likely others). This 1293 watchdog simply watches your kernel to make sure it doesn't freeze, 1294 and if it does, it reboots your computer after a certain amount of 1295 time. 1296 1297 To compile this driver as a module, choose M here: the 1298 module will be called w83977f_wdt. 1299 1300config MACHZ_WDT 1301 tristate "ZF MachZ Watchdog" 1302 depends on X86 1303 ---help--- 1304 If you are using a ZF Micro MachZ processor, say Y here, otherwise 1305 N. This is the driver for the watchdog timer built-in on that 1306 processor using ZF-Logic interface. This watchdog simply watches 1307 your kernel to make sure it doesn't freeze, and if it does, it 1308 reboots your computer after a certain amount of time. 1309 1310 To compile this driver as a module, choose M here: the 1311 module will be called machzwd. 1312 1313config SBC_EPX_C3_WATCHDOG 1314 tristate "Winsystems SBC EPX-C3 watchdog" 1315 depends on X86 1316 ---help--- 1317 This is the driver for the built-in watchdog timer on the EPX-C3 1318 Single-board computer made by Winsystems, Inc. 1319 1320 *Note*: This hardware watchdog is not probeable and thus there 1321 is no way to know if writing to its IO address will corrupt 1322 your system or have any real effect. The only way to be sure 1323 that this driver does what you want is to make sure you 1324 are running it on an EPX-C3 from Winsystems with the watchdog 1325 timer at IO address 0x1ee and 0x1ef. It will write to both those 1326 IO ports. Basically, the assumption is made that if you compile 1327 this driver into your kernel and/or load it as a module, that you 1328 know what you are doing and that you are in fact running on an 1329 EPX-C3 board! 1330 1331 To compile this driver as a module, choose M here: the 1332 module will be called sbc_epx_c3. 1333 1334config INTEL_MEI_WDT 1335 tristate "Intel MEI iAMT Watchdog" 1336 depends on INTEL_MEI && X86 1337 select WATCHDOG_CORE 1338 ---help--- 1339 A device driver for the Intel MEI iAMT watchdog. 1340 1341 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog. 1342 Whenever the OS hangs or crashes, iAMT will send an event 1343 to any subscriber to this event. The watchdog doesn't reset the 1344 the platform. 1345 1346 To compile this driver as a module, choose M here: 1347 the module will be called mei_wdt. 1348 1349config NI903X_WDT 1350 tristate "NI 903x/913x Watchdog" 1351 depends on X86 && ACPI 1352 select WATCHDOG_CORE 1353 ---help--- 1354 This is the driver for the watchdog timer on the National Instruments 1355 903x/913x real-time controllers. 1356 1357 To compile this driver as a module, choose M here: the module will be 1358 called ni903x_wdt. 1359 1360config NIC7018_WDT 1361 tristate "NIC7018 Watchdog" 1362 depends on X86 && ACPI 1363 select WATCHDOG_CORE 1364 ---help--- 1365 Support for National Instruments NIC7018 Watchdog. 1366 1367 To compile this driver as a module, choose M here: the module will be 1368 called nic7018_wdt. 1369 1370# M32R Architecture 1371 1372# M68K Architecture 1373 1374config M54xx_WATCHDOG 1375 tristate "MCF54xx watchdog support" 1376 depends on M548x 1377 help 1378 To compile this driver as a module, choose M here: the 1379 module will be called m54xx_wdt. 1380 1381# MicroBlaze Architecture 1382 1383# MIPS Architecture 1384 1385config ATH79_WDT 1386 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 1387 depends on ATH79 || (ARM && COMPILE_TEST) 1388 help 1389 Hardware driver for the built-in watchdog timer on the Atheros 1390 AR71XX/AR724X/AR913X SoCs. 1391 1392config BCM47XX_WDT 1393 tristate "Broadcom BCM47xx Watchdog Timer" 1394 depends on BCM47XX || ARCH_BCM_5301X || COMPILE_TEST 1395 select WATCHDOG_CORE 1396 help 1397 Hardware driver for the Broadcom BCM47xx Watchdog Timer. 1398 1399config RC32434_WDT 1400 tristate "IDT RC32434 SoC Watchdog Timer" 1401 depends on MIKROTIK_RB532 1402 help 1403 Hardware driver for the IDT RC32434 SoC built-in 1404 watchdog timer. 1405 1406 To compile this driver as a module, choose M here: the 1407 module will be called rc32434_wdt. 1408 1409config INDYDOG 1410 tristate "Indy/I2 Hardware Watchdog" 1411 depends on SGI_HAS_INDYDOG || (MIPS && COMPILE_TEST) 1412 help 1413 Hardware driver for the Indy's/I2's watchdog. This is a 1414 watchdog timer that will reboot the machine after a 60 second 1415 timer expired and no process has written to /dev/watchdog during 1416 that time. 1417 1418config JZ4740_WDT 1419 tristate "Ingenic jz4740 SoC hardware watchdog" 1420 depends on MACH_JZ4740 1421 select WATCHDOG_CORE 1422 help 1423 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 1424 1425config WDT_MTX1 1426 tristate "MTX-1 Hardware Watchdog" 1427 depends on MIPS_MTX1 || (MIPS && COMPILE_TEST) 1428 help 1429 Hardware driver for the MTX-1 boards. This is a watchdog timer that 1430 will reboot the machine after a 100 seconds timer expired. 1431 1432config PNX833X_WDT 1433 tristate "PNX833x Hardware Watchdog" 1434 depends on SOC_PNX8335 1435 depends on BROKEN 1436 help 1437 Hardware driver for the PNX833x's watchdog. This is a 1438 watchdog timer that will reboot the machine after a programmable 1439 timer has expired and no process has written to /dev/watchdog during 1440 that time. 1441 1442config SIBYTE_WDOG 1443 tristate "Sibyte SoC hardware watchdog" 1444 depends on CPU_SB1 || (MIPS && COMPILE_TEST) 1445 help 1446 Watchdog driver for the built in watchdog hardware in Sibyte 1447 SoC processors. There are apparently two watchdog timers 1448 on such processors; this driver supports only the first one, 1449 because currently Linux only supports exporting one watchdog 1450 to userspace. 1451 1452 To compile this driver as a loadable module, choose M here. 1453 The module will be called sb_wdog. 1454 1455config AR7_WDT 1456 tristate "TI AR7 Watchdog Timer" 1457 depends on AR7 || (MIPS && COMPILE_TEST) 1458 help 1459 Hardware driver for the TI AR7 Watchdog Timer. 1460 1461config TXX9_WDT 1462 tristate "Toshiba TXx9 Watchdog Timer" 1463 depends on CPU_TX39XX || CPU_TX49XX || (MIPS && COMPILE_TEST) 1464 select WATCHDOG_CORE 1465 help 1466 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 1467 1468config OCTEON_WDT 1469 tristate "Cavium OCTEON SOC family Watchdog Timer" 1470 depends on CAVIUM_OCTEON_SOC 1471 default y 1472 select WATCHDOG_CORE 1473 select EXPORT_UASM if OCTEON_WDT = m 1474 help 1475 Hardware driver for OCTEON's on chip watchdog timer. 1476 Enables the watchdog for all cores running Linux. It 1477 installs a NMI handler and pokes the watchdog based on an 1478 interrupt. On first expiration of the watchdog, the 1479 interrupt handler pokes it. The second expiration causes an 1480 NMI that prints a message. The third expiration causes a 1481 global soft reset. 1482 1483 When userspace has /dev/watchdog open, no poking is done 1484 from the first interrupt, it is then only poked when the 1485 device is written. 1486 1487config BCM63XX_WDT 1488 tristate "Broadcom BCM63xx hardware watchdog" 1489 depends on BCM63XX 1490 help 1491 Watchdog driver for the built in watchdog hardware in Broadcom 1492 BCM63xx SoC. 1493 1494 To compile this driver as a loadable module, choose M here. 1495 The module will be called bcm63xx_wdt. 1496 1497config BCM2835_WDT 1498 tristate "Broadcom BCM2835 hardware watchdog" 1499 depends on ARCH_BCM2835 || (OF && COMPILE_TEST) 1500 select WATCHDOG_CORE 1501 help 1502 Watchdog driver for the built in watchdog hardware in Broadcom 1503 BCM2835 SoC. 1504 1505 To compile this driver as a loadable module, choose M here. 1506 The module will be called bcm2835_wdt. 1507 1508config BCM_KONA_WDT 1509 tristate "BCM Kona Watchdog" 1510 depends on ARCH_BCM_MOBILE || COMPILE_TEST 1511 select WATCHDOG_CORE 1512 help 1513 Support for the watchdog timer on the following Broadcom BCM281xx 1514 family, which includes BCM11130, BCM11140, BCM11351, BCM28145 and 1515 BCM28155 variants. 1516 1517 Say 'Y' or 'M' here to enable the driver. The module will be called 1518 bcm_kona_wdt. 1519 1520config BCM_KONA_WDT_DEBUG 1521 bool "DEBUGFS support for BCM Kona Watchdog" 1522 depends on BCM_KONA_WDT || COMPILE_TEST 1523 help 1524 If enabled, adds /sys/kernel/debug/bcm_kona_wdt/info which provides 1525 access to the driver's internal data structures as well as watchdog 1526 timer hardware registres. 1527 1528 If in doubt, say 'N'. 1529 1530config BCM7038_WDT 1531 tristate "BCM7038 Watchdog" 1532 select WATCHDOG_CORE 1533 depends on HAS_IOMEM 1534 depends on ARCH_BRCMSTB || BMIPS_GENERIC || COMPILE_TEST 1535 help 1536 Watchdog driver for the built-in hardware in Broadcom 7038 and 1537 later SoCs used in set-top boxes. BCM7038 was made public 1538 during the 2004 CES, and since then, many Broadcom chips use this 1539 watchdog block, including some cable modem chips. 1540 1541config IMGPDC_WDT 1542 tristate "Imagination Technologies PDC Watchdog Timer" 1543 depends on HAS_IOMEM 1544 depends on METAG || MIPS || COMPILE_TEST 1545 select WATCHDOG_CORE 1546 help 1547 Driver for Imagination Technologies PowerDown Controller 1548 Watchdog Timer. 1549 1550 To compile this driver as a loadable module, choose M here. 1551 The module will be called imgpdc_wdt. 1552 1553config LANTIQ_WDT 1554 tristate "Lantiq SoC watchdog" 1555 depends on LANTIQ 1556 help 1557 Hardware driver for the Lantiq SoC Watchdog Timer. 1558 1559config LOONGSON1_WDT 1560 tristate "Loongson1 SoC hardware watchdog" 1561 depends on MACH_LOONGSON32 1562 select WATCHDOG_CORE 1563 help 1564 Hardware driver for the Loongson1 SoC Watchdog Timer. 1565 1566config RALINK_WDT 1567 tristate "Ralink SoC watchdog" 1568 select WATCHDOG_CORE 1569 depends on RALINK 1570 help 1571 Hardware driver for the Ralink SoC Watchdog Timer. 1572 1573config MT7621_WDT 1574 tristate "Mediatek SoC watchdog" 1575 select WATCHDOG_CORE 1576 depends on SOC_MT7620 || SOC_MT7621 1577 help 1578 Hardware driver for the Mediatek/Ralink MT7621/8 SoC Watchdog Timer. 1579 1580config PIC32_WDT 1581 tristate "Microchip PIC32 hardware watchdog" 1582 select WATCHDOG_CORE 1583 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1584 help 1585 Watchdog driver for the built in watchdog hardware in a PIC32. 1586 1587 Configuration bits must be set appropriately for the watchdog to be 1588 controlled by this driver. 1589 1590 To compile this driver as a loadable module, choose M here. 1591 The module will be called pic32-wdt. 1592 1593config PIC32_DMT 1594 tristate "Microchip PIC32 Deadman Timer" 1595 select WATCHDOG_CORE 1596 depends on MACH_PIC32 || (MIPS && COMPILE_TEST) 1597 help 1598 Watchdog driver for PIC32 instruction fetch counting timer. This specific 1599 timer is typically be used in misson critical and safety critical 1600 applications, where any single failure of the software functionality 1601 and sequencing must be detected. 1602 1603 To compile this driver as a loadable module, choose M here. 1604 The module will be called pic32-dmt. 1605 1606# PARISC Architecture 1607 1608# POWERPC Architecture 1609 1610config GEF_WDT 1611 tristate "GE Watchdog Timer" 1612 depends on GE_FPGA 1613 ---help--- 1614 Watchdog timer found in a number of GE single board computers. 1615 1616config MPC5200_WDT 1617 bool "MPC52xx Watchdog Timer" 1618 depends on PPC_MPC52xx || COMPILE_TEST 1619 help 1620 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 1621 1622config 8xxx_WDT 1623 tristate "MPC8xxx Platform Watchdog Timer" 1624 depends on PPC_8xx || PPC_83xx || PPC_86xx || PPC_MPC512x 1625 select WATCHDOG_CORE 1626 help 1627 This driver is for a SoC level watchdog that exists on some 1628 Freescale PowerPC processors. So far this driver supports: 1629 - MPC8xx watchdogs 1630 - MPC83xx watchdogs 1631 - MPC86xx watchdogs 1632 1633 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 1634 1635config MV64X60_WDT 1636 tristate "MV64X60 (Marvell Discovery) Watchdog Timer" 1637 depends on MV64X60 || COMPILE_TEST 1638 1639config PIKA_WDT 1640 tristate "PIKA FPGA Watchdog" 1641 depends on WARP || (PPC64 && COMPILE_TEST) 1642 default y 1643 help 1644 This enables the watchdog in the PIKA FPGA. Currently used on 1645 the Warp platform. 1646 1647config BOOKE_WDT 1648 tristate "PowerPC Book-E Watchdog Timer" 1649 depends on BOOKE || 4xx 1650 select WATCHDOG_CORE 1651 ---help--- 1652 Watchdog driver for PowerPC Book-E chips, such as the Freescale 1653 MPC85xx SOCs and the IBM PowerPC 440. 1654 1655 Please see Documentation/watchdog/watchdog-api.txt for 1656 more information. 1657 1658config BOOKE_WDT_DEFAULT_TIMEOUT 1659 int "PowerPC Book-E Watchdog Timer Default Timeout" 1660 depends on BOOKE_WDT 1661 default 38 if PPC_FSL_BOOK3E 1662 range 0 63 if PPC_FSL_BOOK3E 1663 default 3 if !PPC_FSL_BOOK3E 1664 range 0 3 if !PPC_FSL_BOOK3E 1665 help 1666 Select the default watchdog timer period to be used by the PowerPC 1667 Book-E watchdog driver. A watchdog "event" occurs when the bit 1668 position represented by this number transitions from zero to one. 1669 1670 For Freescale Book-E processors, this is a number between 0 and 63. 1671 For other Book-E processors, this is a number between 0 and 3. 1672 1673 The value can be overridden by the wdt_period command-line parameter. 1674 1675config MEN_A21_WDT 1676 tristate "MEN A21 VME CPU Carrier Board Watchdog Timer" 1677 select WATCHDOG_CORE 1678 depends on GPIOLIB || COMPILE_TEST 1679 help 1680 Watchdog driver for MEN A21 VMEbus CPU Carrier Boards. 1681 1682 The driver can also be built as a module. If so, the module will be 1683 called mena21_wdt. 1684 1685 If unsure select N here. 1686 1687# PPC64 Architecture 1688 1689config WATCHDOG_RTAS 1690 tristate "RTAS watchdog" 1691 depends on PPC_RTAS || (PPC64 && COMPILE_TEST) 1692 help 1693 This driver adds watchdog support for the RTAS watchdog. 1694 1695 To compile this driver as a module, choose M here. The module 1696 will be called wdrtas. 1697 1698# S390 Architecture 1699 1700config DIAG288_WATCHDOG 1701 tristate "System z diag288 Watchdog" 1702 depends on S390 1703 select WATCHDOG_CORE 1704 help 1705 IBM s/390 and zSeries machines running under z/VM 5.1 or later 1706 provide a virtual watchdog timer to their guest that cause a 1707 user define Control Program command to be executed after a 1708 timeout. 1709 LPAR provides a very similar interface. This driver handles 1710 both. 1711 1712 To compile this driver as a module, choose M here. The module 1713 will be called diag288_wdt. 1714 1715# SUPERH (sh + sh64) Architecture 1716 1717config SH_WDT 1718 tristate "SuperH Watchdog" 1719 depends on SUPERH && (CPU_SH3 || CPU_SH4 || COMPILE_TEST) 1720 select WATCHDOG_CORE 1721 help 1722 This driver adds watchdog support for the integrated watchdog in the 1723 SuperH processors. If you have one of these processors and wish 1724 to have watchdog support enabled, say Y, otherwise say N. 1725 1726 As a side note, saying Y here will automatically boost HZ to 1000 1727 so that the timer has a chance to clear the overflow counter. On 1728 slower systems (such as the SH-2 and SH-3) this will likely yield 1729 some performance issues. As such, the WDT should be avoided here 1730 unless it is absolutely necessary. 1731 1732 To compile this driver as a module, choose M here: the 1733 module will be called shwdt. 1734 1735# SPARC Architecture 1736 1737# SPARC64 Architecture 1738 1739config WATCHDOG_CP1XXX 1740 tristate "CP1XXX Hardware Watchdog support" 1741 depends on SPARC64 && PCI 1742 ---help--- 1743 This is the driver for the hardware watchdog timers present on 1744 Sun Microsystems CompactPCI models CP1400 and CP1500. 1745 1746 To compile this driver as a module, choose M here: the 1747 module will be called cpwatchdog. 1748 1749 If you do not have a CompactPCI model CP1400 or CP1500, or 1750 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 1751 you should say N to this option. 1752 1753config WATCHDOG_RIO 1754 tristate "RIO Hardware Watchdog support" 1755 depends on SPARC64 && PCI 1756 help 1757 Say Y here to support the hardware watchdog capability on Sun RIO 1758 machines. The watchdog timeout period is normally one minute but 1759 can be changed with a boot-time parameter. 1760 1761config WATCHDOG_SUN4V 1762 tristate "Sun4v Watchdog support" 1763 select WATCHDOG_CORE 1764 depends on SPARC64 1765 help 1766 Say Y here to support the hypervisor watchdog capability embedded 1767 in the SPARC sun4v architecture. 1768 1769 To compile this driver as a module, choose M here. The module will 1770 be called sun4v_wdt. 1771 1772# XTENSA Architecture 1773 1774# Xen Architecture 1775 1776config XEN_WDT 1777 tristate "Xen Watchdog support" 1778 depends on XEN 1779 help 1780 Say Y here to support the hypervisor watchdog capability provided 1781 by Xen 4.0 and newer. The watchdog timeout period is normally one 1782 minute but can be changed with a boot-time parameter. 1783 1784config UML_WATCHDOG 1785 tristate "UML watchdog" 1786 depends on UML || COMPILE_TEST 1787 1788# 1789# ISA-based Watchdog Cards 1790# 1791 1792comment "ISA-based Watchdog Cards" 1793 depends on ISA 1794 1795config PCWATCHDOG 1796 tristate "Berkshire Products ISA-PC Watchdog" 1797 depends on ISA 1798 ---help--- 1799 This is the driver for the Berkshire Products ISA-PC Watchdog card. 1800 This card simply watches your kernel to make sure it doesn't freeze, 1801 and if it does, it reboots your computer after a certain amount of 1802 time. This driver is like the WDT501 driver but for different 1803 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC 1804 watchdog cards can be ordered from <http://www.berkprod.com/>. 1805 1806 To compile this driver as a module, choose M here: the 1807 module will be called pcwd. 1808 1809 Most people will say N. 1810 1811config MIXCOMWD 1812 tristate "Mixcom Watchdog" 1813 depends on ISA 1814 ---help--- 1815 This is a driver for the Mixcom hardware watchdog cards. This 1816 watchdog simply watches your kernel to make sure it doesn't freeze, 1817 and if it does, it reboots your computer after a certain amount of 1818 time. 1819 1820 To compile this driver as a module, choose M here: the 1821 module will be called mixcomwd. 1822 1823 Most people will say N. 1824 1825config WDT 1826 tristate "WDT Watchdog timer" 1827 depends on ISA 1828 ---help--- 1829 If you have a WDT500P or WDT501P watchdog board, say Y here, 1830 otherwise N. It is not possible to probe for this board, which means 1831 that you have to inform the kernel about the IO port and IRQ that 1832 is needed (you can do this via the io and irq parameters) 1833 1834 To compile this driver as a module, choose M here: the 1835 module will be called wdt. 1836 1837# 1838# PCI-based Watchdog Cards 1839# 1840 1841comment "PCI-based Watchdog Cards" 1842 depends on PCI 1843 1844config PCIPCWATCHDOG 1845 tristate "Berkshire Products PCI-PC Watchdog" 1846 depends on PCI 1847 ---help--- 1848 This is the driver for the Berkshire Products PCI-PC Watchdog card. 1849 This card simply watches your kernel to make sure it doesn't freeze, 1850 and if it does, it reboots your computer after a certain amount of 1851 time. The card can also monitor the internal temperature of the PC. 1852 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 1853 1854 To compile this driver as a module, choose M here: the 1855 module will be called pcwd_pci. 1856 1857 Most people will say N. 1858 1859config WDTPCI 1860 tristate "PCI-WDT500/501 Watchdog timer" 1861 depends on PCI 1862 ---help--- 1863 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 1864 1865 If you have a PCI-WDT501 watchdog board then you can enable the 1866 temperature sensor by setting the type parameter to 501. 1867 1868 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 1869 can do this via the tachometer parameter. Only do this if you have a 1870 fan tachometer actually set up. 1871 1872 To compile this driver as a module, choose M here: the 1873 module will be called wdt_pci. 1874 1875# 1876# USB-based Watchdog Cards 1877# 1878 1879comment "USB-based Watchdog Cards" 1880 depends on USB 1881 1882config USBPCWATCHDOG 1883 tristate "Berkshire Products USB-PC Watchdog" 1884 depends on USB 1885 ---help--- 1886 This is the driver for the Berkshire Products USB-PC Watchdog card. 1887 This card simply watches your kernel to make sure it doesn't freeze, 1888 and if it does, it reboots your computer after a certain amount of 1889 time. The card can also monitor the internal temperature of the PC. 1890 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 1891 1892 To compile this driver as a module, choose M here: the 1893 module will be called pcwd_usb. 1894 1895 Most people will say N. 1896 1897comment "Watchdog Pretimeout Governors" 1898 1899config WATCHDOG_PRETIMEOUT_GOV 1900 bool "Enable watchdog pretimeout governors" 1901 help 1902 The option allows to select watchdog pretimeout governors. 1903 1904if WATCHDOG_PRETIMEOUT_GOV 1905 1906choice 1907 prompt "Default Watchdog Pretimeout Governor" 1908 default WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC 1909 help 1910 This option selects a default watchdog pretimeout governor. 1911 The governor takes its action, if a watchdog is capable 1912 to report a pretimeout event. 1913 1914config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_NOOP 1915 bool "noop" 1916 select WATCHDOG_PRETIMEOUT_GOV_NOOP 1917 help 1918 Use noop watchdog pretimeout governor by default. If noop 1919 governor is selected by a user, write a short message to 1920 the kernel log buffer and don't do any system changes. 1921 1922config WATCHDOG_PRETIMEOUT_DEFAULT_GOV_PANIC 1923 bool "panic" 1924 select WATCHDOG_PRETIMEOUT_GOV_PANIC 1925 help 1926 Use panic watchdog pretimeout governor by default, if 1927 a watchdog pretimeout event happens, consider that 1928 a watchdog feeder is dead and reboot is unavoidable. 1929 1930endchoice 1931 1932config WATCHDOG_PRETIMEOUT_GOV_NOOP 1933 tristate "Noop watchdog pretimeout governor" 1934 help 1935 Noop watchdog pretimeout governor, only an informational 1936 message is added to kernel log buffer. 1937 1938config WATCHDOG_PRETIMEOUT_GOV_PANIC 1939 tristate "Panic watchdog pretimeout governor" 1940 help 1941 Panic watchdog pretimeout governor, on watchdog pretimeout 1942 event put the kernel into panic. 1943 1944endif # WATCHDOG_PRETIMEOUT_GOV 1945 1946endif # WATCHDOG 1947