1# 2# Watchdog device configuration 3# 4 5menuconfig WATCHDOG 6 bool "Watchdog Timer Support" 7 ---help--- 8 If you say Y here (and to one of the following options) and create a 9 character special file /dev/watchdog with major number 10 and minor 10 number 130 using mknod ("man mknod"), you will get a watchdog, i.e.: 11 subsequently opening the file and then failing to write to it for 12 longer than 1 minute will result in rebooting the machine. This 13 could be useful for a networked machine that needs to come back 14 on-line as fast as possible after a lock-up. There's both a watchdog 15 implementation entirely in software (which can sometimes fail to 16 reboot the machine) and a driver for hardware watchdog boards, which 17 are more robust and can also keep track of the temperature inside 18 your computer. For details, read 19 <file:Documentation/watchdog/watchdog-api.txt> in the kernel source. 20 21 The watchdog is usually used together with the watchdog daemon 22 which is available from 23 <ftp://ibiblio.org/pub/Linux/system/daemons/watchdog/>. This daemon can 24 also monitor NFS connections and can reboot the machine when the process 25 table is full. 26 27 If unsure, say N. 28 29if WATCHDOG 30 31config WATCHDOG_CORE 32 bool "WatchDog Timer Driver Core" 33 ---help--- 34 Say Y here if you want to use the new watchdog timer driver core. 35 This driver provides a framework for all watchdog timer drivers 36 and gives them the /dev/watchdog interface (and later also the 37 sysfs interface). 38 39config WATCHDOG_NOWAYOUT 40 bool "Disable watchdog shutdown on close" 41 help 42 The default watchdog behaviour (which you get if you say N here) is 43 to stop the timer if the process managing it closes the file 44 /dev/watchdog. It's always remotely possible that this process might 45 get killed. If you say Y here, the watchdog cannot be stopped once 46 it has been started. 47 48# 49# General Watchdog drivers 50# 51 52comment "Watchdog Device Drivers" 53 54# Architecture Independent 55 56config SOFT_WATCHDOG 57 tristate "Software watchdog" 58 help 59 A software monitoring watchdog. This will fail to reboot your system 60 from some situations that the hardware watchdog will recover 61 from. Equally it's a lot cheaper to install. 62 63 To compile this driver as a module, choose M here: the 64 module will be called softdog. 65 66config WM831X_WATCHDOG 67 tristate "WM831x watchdog" 68 depends on MFD_WM831X 69 select WATCHDOG_CORE 70 help 71 Support for the watchdog in the WM831x AudioPlus PMICs. When 72 the watchdog triggers the system will be reset. 73 74config WM8350_WATCHDOG 75 tristate "WM8350 watchdog" 76 depends on MFD_WM8350 77 help 78 Support for the watchdog in the WM8350 AudioPlus PMIC. When 79 the watchdog triggers the system will be reset. 80 81# ALPHA Architecture 82 83# ARM Architecture 84 85config ARM_SP805_WATCHDOG 86 tristate "ARM SP805 Watchdog" 87 depends on ARM_AMBA 88 help 89 ARM Primecell SP805 Watchdog timer. This will reboot your system when 90 the timeout is reached. 91 92config AT91RM9200_WATCHDOG 93 tristate "AT91RM9200 watchdog" 94 depends on ARCH_AT91RM9200 95 help 96 Watchdog timer embedded into AT91RM9200 chips. This will reboot your 97 system when the timeout is reached. 98 99config AT91SAM9X_WATCHDOG 100 tristate "AT91SAM9X / AT91CAP9 watchdog" 101 depends on ARCH_AT91 && !ARCH_AT91RM9200 102 help 103 Watchdog timer embedded into AT91SAM9X and AT91CAP9 chips. This will 104 reboot your system when the timeout is reached. 105 106config 21285_WATCHDOG 107 tristate "DC21285 watchdog" 108 depends on FOOTBRIDGE 109 help 110 The Intel Footbridge chip contains a built-in watchdog circuit. Say Y 111 here if you wish to use this. Alternatively say M to compile the 112 driver as a module, which will be called wdt285. 113 114 This driver does not work on all machines. In particular, early CATS 115 boards have hardware problems that will cause the machine to simply 116 lock up if the watchdog fires. 117 118 "If in doubt, leave it out" - say N. 119 120config 977_WATCHDOG 121 tristate "NetWinder WB83C977 watchdog" 122 depends on FOOTBRIDGE && ARCH_NETWINDER 123 help 124 Say Y here to include support for the WB977 watchdog included in 125 NetWinder machines. Alternatively say M to compile the driver as 126 a module, which will be called wdt977. 127 128 Not sure? It's safe to say N. 129 130config IXP2000_WATCHDOG 131 tristate "IXP2000 Watchdog" 132 depends on ARCH_IXP2000 133 help 134 Say Y here if to include support for the watchdog timer 135 in the Intel IXP2000(2400, 2800, 2850) network processors. 136 This driver can be built as a module by choosing M. The module 137 will be called ixp2000_wdt. 138 139 Say N if you are unsure. 140 141config IXP4XX_WATCHDOG 142 tristate "IXP4xx Watchdog" 143 depends on ARCH_IXP4XX 144 help 145 Say Y here if to include support for the watchdog timer 146 in the Intel IXP4xx network processors. This driver can 147 be built as a module by choosing M. The module will 148 be called ixp4xx_wdt. 149 150 Note: The internal IXP4xx watchdog does a soft CPU reset 151 which doesn't reset any peripherals. There are circumstances 152 where the watchdog will fail to reset the board correctly 153 (e.g., if the boot ROM is in an unreadable state). 154 155 Say N if you are unsure. 156 157config KS8695_WATCHDOG 158 tristate "KS8695 watchdog" 159 depends on ARCH_KS8695 160 help 161 Watchdog timer embedded into KS8695 processor. This will reboot your 162 system when the timeout is reached. 163 164config HAVE_S3C2410_WATCHDOG 165 bool 166 help 167 This will include watchdog timer support for Samsung SoCs. If 168 you want to include watchdog support for any machine, kindly 169 select this in the respective mach-XXXX/Kconfig file. 170 171config S3C2410_WATCHDOG 172 tristate "S3C2410 Watchdog" 173 depends on ARCH_S3C2410 || HAVE_S3C2410_WATCHDOG 174 select WATCHDOG_CORE 175 help 176 Watchdog timer block in the Samsung SoCs. This will reboot 177 the system when the timer expires with the watchdog enabled. 178 179 The driver is limited by the speed of the system's PCLK 180 signal, so with reasonably fast systems (PCLK around 50-66MHz) 181 then watchdog intervals of over approximately 20seconds are 182 unavailable. 183 184 The driver can be built as a module by choosing M, and will 185 be called s3c2410_wdt 186 187config SA1100_WATCHDOG 188 tristate "SA1100/PXA2xx watchdog" 189 depends on ARCH_SA1100 || ARCH_PXA 190 help 191 Watchdog timer embedded into SA11x0 and PXA2xx chips. This will 192 reboot your system when timeout is reached. 193 194 NOTE: once enabled, this timer cannot be disabled. 195 196 To compile this driver as a module, choose M here: the 197 module will be called sa1100_wdt. 198 199config DW_WATCHDOG 200 tristate "Synopsys DesignWare watchdog" 201 depends on ARM && HAVE_CLK 202 help 203 Say Y here if to include support for the Synopsys DesignWare 204 watchdog timer found in many ARM chips. 205 To compile this driver as a module, choose M here: the 206 module will be called dw_wdt. 207 208config MPCORE_WATCHDOG 209 tristate "MPcore watchdog" 210 depends on HAVE_ARM_TWD 211 help 212 Watchdog timer embedded into the MPcore system. 213 214 To compile this driver as a module, choose M here: the 215 module will be called mpcore_wdt. 216 217config EP93XX_WATCHDOG 218 tristate "EP93xx Watchdog" 219 depends on ARCH_EP93XX 220 help 221 Say Y here if to include support for the watchdog timer 222 embedded in the Cirrus Logic EP93xx family of devices. 223 224 To compile this driver as a module, choose M here: the 225 module will be called ep93xx_wdt. 226 227config OMAP_WATCHDOG 228 tristate "OMAP Watchdog" 229 depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS 230 help 231 Support for TI OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog. Say 'Y' 232 here to enable the OMAP1610/OMAP1710/OMAP2420/OMAP3430/OMAP4430 watchdog timer. 233 234config PNX4008_WATCHDOG 235 tristate "PNX4008 and LPC32XX Watchdog" 236 depends on ARCH_PNX4008 || ARCH_LPC32XX 237 help 238 Say Y here if to include support for the watchdog timer 239 in the PNX4008 or LPC32XX processor. 240 This driver can be built as a module by choosing M. The module 241 will be called pnx4008_wdt. 242 243 Say N if you are unsure. 244 245config IOP_WATCHDOG 246 tristate "IOP Watchdog" 247 depends on PLAT_IOP 248 select WATCHDOG_NOWAYOUT if (ARCH_IOP32X || ARCH_IOP33X) 249 help 250 Say Y here if to include support for the watchdog timer 251 in the Intel IOP3XX & IOP13XX I/O Processors. This driver can 252 be built as a module by choosing M. The module will 253 be called iop_wdt. 254 255 Note: The IOP13XX watchdog does an Internal Bus Reset which will 256 affect both cores and the peripherals of the IOP. The ATU-X 257 and/or ATUe configuration registers will remain intact, but if 258 operating as an Root Complex and/or Central Resource, the PCI-X 259 and/or PCIe busses will also be reset. THIS IS A VERY BIG HAMMER. 260 261config DAVINCI_WATCHDOG 262 tristate "DaVinci watchdog" 263 depends on ARCH_DAVINCI 264 help 265 Say Y here if to include support for the watchdog timer 266 in the DaVinci DM644x/DM646x processors. 267 To compile this driver as a module, choose M here: the 268 module will be called davinci_wdt. 269 270 NOTE: once enabled, this timer cannot be disabled. 271 Say N if you are unsure. 272 273config ORION_WATCHDOG 274 tristate "Orion watchdog" 275 depends on ARCH_ORION5X || ARCH_KIRKWOOD 276 help 277 Say Y here if to include support for the watchdog timer 278 in the Marvell Orion5x and Kirkwood ARM SoCs. 279 To compile this driver as a module, choose M here: the 280 module will be called orion_wdt. 281 282config COH901327_WATCHDOG 283 bool "ST-Ericsson COH 901 327 watchdog" 284 depends on ARCH_U300 285 default y if MACH_U300 286 help 287 Say Y here to include Watchdog timer support for the 288 watchdog embedded into the ST-Ericsson U300 series platforms. 289 This watchdog is used to reset the system and thus cannot be 290 compiled as a module. 291 292config TWL4030_WATCHDOG 293 tristate "TWL4030 Watchdog" 294 depends on TWL4030_CORE 295 help 296 Support for TI TWL4030 watchdog. Say 'Y' here to enable the 297 watchdog timer support for TWL4030 chips. 298 299config STMP3XXX_WATCHDOG 300 tristate "Freescale STMP3XXX watchdog" 301 depends on ARCH_STMP3XXX 302 help 303 Say Y here if to include support for the watchdog timer 304 for the Sigmatel STMP37XX/378X SoC. 305 To compile this driver as a module, choose M here: the 306 module will be called stmp3xxx_wdt. 307 308config NUC900_WATCHDOG 309 tristate "Nuvoton NUC900 watchdog" 310 depends on ARCH_W90X900 311 help 312 Say Y here if to include support for the watchdog timer 313 for the Nuvoton NUC900 series SoCs. 314 To compile this driver as a module, choose M here: the 315 module will be called nuc900_wdt. 316 317config TS72XX_WATCHDOG 318 tristate "TS-72XX SBC Watchdog" 319 depends on MACH_TS72XX 320 help 321 Technologic Systems TS-7200, TS-7250 and TS-7260 boards have 322 watchdog timer implemented in a external CPLD chip. Say Y here 323 if you want to support for the watchdog timer on TS-72XX boards. 324 325 To compile this driver as a module, choose M here: the 326 module will be called ts72xx_wdt. 327 328config MAX63XX_WATCHDOG 329 tristate "Max63xx watchdog" 330 depends on ARM && HAS_IOMEM 331 help 332 Support for memory mapped max63{69,70,71,72,73,74} watchdog timer. 333 334config IMX2_WDT 335 tristate "IMX2+ Watchdog" 336 depends on IMX_HAVE_PLATFORM_IMX2_WDT 337 help 338 This is the driver for the hardware watchdog 339 on the Freescale IMX2 and later processors. 340 If you have one of these processors and wish to have 341 watchdog support enabled, say Y, otherwise say N. 342 343 To compile this driver as a module, choose M here: the 344 module will be called imx2_wdt. 345 346# AVR32 Architecture 347 348config AT32AP700X_WDT 349 tristate "AT32AP700x watchdog" 350 depends on CPU_AT32AP700X 351 help 352 Watchdog timer embedded into AT32AP700x devices. This will reboot 353 your system when the timeout is reached. 354 355# BLACKFIN Architecture 356 357config BFIN_WDT 358 tristate "Blackfin On-Chip Watchdog Timer" 359 depends on BLACKFIN 360 ---help--- 361 If you say yes here you will get support for the Blackfin On-Chip 362 Watchdog Timer. If you have one of these processors and wish to 363 have watchdog support enabled, say Y, otherwise say N. 364 365 To compile this driver as a module, choose M here: the 366 module will be called bfin_wdt. 367 368# CRIS Architecture 369 370# FRV Architecture 371 372# H8300 Architecture 373 374# X86 (i386 + ia64 + x86_64) Architecture 375 376config ACQUIRE_WDT 377 tristate "Acquire SBC Watchdog Timer" 378 depends on X86 379 ---help--- 380 This is the driver for the hardware watchdog on Single Board 381 Computers produced by Acquire Inc (and others). This watchdog 382 simply watches your kernel to make sure it doesn't freeze, and if 383 it does, it reboots your computer after a certain amount of time. 384 385 To compile this driver as a module, choose M here: the 386 module will be called acquirewdt. 387 388 Most people will say N. 389 390config ADVANTECH_WDT 391 tristate "Advantech SBC Watchdog Timer" 392 depends on X86 393 help 394 If you are configuring a Linux kernel for the Advantech single-board 395 computer, say `Y' here to support its built-in watchdog timer 396 feature. More information can be found at 397 <http://www.advantech.com.tw/products/> 398 399config ALIM1535_WDT 400 tristate "ALi M1535 PMU Watchdog Timer" 401 depends on X86 && PCI 402 ---help--- 403 This is the driver for the hardware watchdog on the ALi M1535 PMU. 404 405 To compile this driver as a module, choose M here: the 406 module will be called alim1535_wdt. 407 408 Most people will say N. 409 410config ALIM7101_WDT 411 tristate "ALi M7101 PMU Computer Watchdog" 412 depends on PCI 413 help 414 This is the driver for the hardware watchdog on the ALi M7101 PMU 415 as used in the x86 Cobalt servers and also found in some 416 SPARC Netra servers too. 417 418 To compile this driver as a module, choose M here: the 419 module will be called alim7101_wdt. 420 421 Most people will say N. 422 423config F71808E_WDT 424 tristate "Fintek F71808E, F71862FG, F71869, F71882FG and F71889FG Watchdog" 425 depends on X86 && EXPERIMENTAL 426 help 427 This is the driver for the hardware watchdog on the Fintek 428 F71808E, F71862FG, F71869, F71882FG and F71889FG Super I/O controllers. 429 430 You can compile this driver directly into the kernel, or use 431 it as a module. The module will be called f71808e_wdt. 432 433config SP5100_TCO 434 tristate "AMD/ATI SP5100 TCO Timer/Watchdog" 435 depends on X86 && PCI 436 ---help--- 437 Hardware watchdog driver for the AMD/ATI SP5100 chipset. The TCO 438 (Total Cost of Ownership) timer is a watchdog timer that will reboot 439 the machine after its expiration. The expiration time can be 440 configured with the "heartbeat" parameter. 441 442 To compile this driver as a module, choose M here: the 443 module will be called sp5100_tco. 444 445config GEODE_WDT 446 tristate "AMD Geode CS5535/CS5536 Watchdog" 447 depends on CS5535_MFGPT 448 help 449 This driver enables a watchdog capability built into the 450 CS5535/CS5536 companion chips for the AMD Geode GX and LX 451 processors. This watchdog watches your kernel to make sure 452 it doesn't freeze, and if it does, it reboots your computer after 453 a certain amount of time. 454 455 You can compile this driver directly into the kernel, or use 456 it as a module. The module will be called geodewdt. 457 458config SC520_WDT 459 tristate "AMD Elan SC520 processor Watchdog" 460 depends on X86 461 help 462 This is the driver for the hardware watchdog built in to the 463 AMD "Elan" SC520 microcomputer commonly used in embedded systems. 464 This watchdog simply watches your kernel to make sure it doesn't 465 freeze, and if it does, it reboots your computer after a certain 466 amount of time. 467 468 You can compile this driver directly into the kernel, or use 469 it as a module. The module will be called sc520_wdt. 470 471config SBC_FITPC2_WATCHDOG 472 tristate "Compulab SBC-FITPC2 watchdog" 473 depends on X86 474 ---help--- 475 This is the driver for the built-in watchdog timer on the fit-PC2, 476 fit-PC2i, CM-iAM single-board computers made by Compulab. 477 478 It`s possible to enable watchdog timer either from BIOS (F2) or from booted Linux. 479 When "Watchdog Timer Value" enabled one can set 31-255 s operational range. 480 481 Entering BIOS setup temporary disables watchdog operation regardless to current state, 482 so system will not be restarted while user in BIOS setup. 483 484 Once watchdog was enabled the system will be restarted every 485 "Watchdog Timer Value" period, so to prevent it user can restart or 486 disable the watchdog. 487 488 To compile this driver as a module, choose M here: the 489 module will be called sbc_fitpc2_wdt. 490 491 Most people will say N. 492 493config EUROTECH_WDT 494 tristate "Eurotech CPU-1220/1410 Watchdog Timer" 495 depends on X86 496 help 497 Enable support for the watchdog timer on the Eurotech CPU-1220 and 498 CPU-1410 cards. These are PC/104 SBCs. Spec sheets and product 499 information are at <http://www.eurotech.it/>. 500 501config IB700_WDT 502 tristate "IB700 SBC Watchdog Timer" 503 depends on X86 504 ---help--- 505 This is the driver for the hardware watchdog on the IB700 Single 506 Board Computer produced by TMC Technology (www.tmc-uk.com). This watchdog 507 simply watches your kernel to make sure it doesn't freeze, and if 508 it does, it reboots your computer after a certain amount of time. 509 510 This driver is like the WDT501 driver but for slightly different hardware. 511 512 To compile this driver as a module, choose M here: the 513 module will be called ib700wdt. 514 515 Most people will say N. 516 517config IBMASR 518 tristate "IBM Automatic Server Restart" 519 depends on X86 520 help 521 This is the driver for the IBM Automatic Server Restart watchdog 522 timer built-in into some eServer xSeries machines. 523 524 To compile this driver as a module, choose M here: the 525 module will be called ibmasr. 526 527config WAFER_WDT 528 tristate "ICP Single Board Computer Watchdog Timer" 529 depends on X86 530 help 531 This is a driver for the hardware watchdog on the ICP Single 532 Board Computer. This driver is working on (at least) the following 533 IPC SBC's: Wafer 5823, Rocky 4783, Rocky 3703 and Rocky 3782. 534 535 To compile this driver as a module, choose M here: the 536 module will be called wafer5823wdt. 537 538config I6300ESB_WDT 539 tristate "Intel 6300ESB Timer/Watchdog" 540 depends on X86 && PCI 541 ---help--- 542 Hardware driver for the watchdog timer built into the Intel 543 6300ESB controller hub. 544 545 To compile this driver as a module, choose M here: the 546 module will be called i6300esb. 547 548config INTEL_SCU_WATCHDOG 549 bool "Intel SCU Watchdog for Mobile Platforms" 550 depends on X86_MRST 551 ---help--- 552 Hardware driver for the watchdog time built into the Intel SCU 553 for Intel Mobile Platforms. 554 555 To compile this driver as a module, choose M here. 556 557config ITCO_WDT 558 tristate "Intel TCO Timer/Watchdog" 559 depends on (X86 || IA64) && PCI 560 ---help--- 561 Hardware driver for the intel TCO timer based watchdog devices. 562 These drivers are included in the Intel 82801 I/O Controller 563 Hub family (from ICH0 up to ICH10) and in the Intel 63xxESB 564 controller hub. 565 566 The TCO (Total Cost of Ownership) timer is a watchdog timer 567 that will reboot the machine after its second expiration. The 568 expiration time can be configured with the "heartbeat" parameter. 569 570 On some motherboards the driver may fail to reset the chipset's 571 NO_REBOOT flag which prevents the watchdog from rebooting the 572 machine. If this is the case you will get a kernel message like 573 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 574 575 To compile this driver as a module, choose M here: the 576 module will be called iTCO_wdt. 577 578config ITCO_VENDOR_SUPPORT 579 bool "Intel TCO Timer/Watchdog Specific Vendor Support" 580 depends on ITCO_WDT 581 ---help--- 582 Add vendor specific support to the intel TCO timer based watchdog 583 devices. At this moment we only have additional support for some 584 SuperMicro Inc. motherboards. 585 586config IT8712F_WDT 587 tristate "IT8712F (Smart Guardian) Watchdog Timer" 588 depends on X86 589 ---help--- 590 This is the driver for the built-in watchdog timer on the IT8712F 591 Super I/0 chipset used on many motherboards. 592 593 If the driver does not work, then make sure that the game port in 594 the BIOS is enabled. 595 596 To compile this driver as a module, choose M here: the 597 module will be called it8712f_wdt. 598 599config IT87_WDT 600 tristate "IT87 Watchdog Timer" 601 depends on X86 && EXPERIMENTAL 602 ---help--- 603 This is the driver for the hardware watchdog on the ITE IT8702, 604 IT8712, IT8716, IT8718, IT8720, IT8721, IT8726 Super I/O chips. 605 This watchdog simply watches your kernel to make sure it doesn't 606 freeze, and if it does, it reboots your computer after a certain 607 amount of time. 608 609 To compile this driver as a module, choose M here: the module will 610 be called it87_wdt. 611 612config HP_WATCHDOG 613 tristate "HP ProLiant iLO2+ Hardware Watchdog Timer" 614 depends on X86 && PCI 615 help 616 A software monitoring watchdog and NMI sourcing driver. This driver 617 will detect lockups and provide a stack trace. This is a driver that 618 will only load on an HP ProLiant system with a minimum of iLO2 support. 619 To compile this driver as a module, choose M here: the module will be 620 called hpwdt. 621 622config HPWDT_NMI_DECODING 623 bool "NMI decoding support for the HP ProLiant iLO2+ Hardware Watchdog Timer" 624 depends on HP_WATCHDOG 625 default y 626 help 627 When an NMI occurs this feature will make the necessary BIOS calls to 628 log the cause of the NMI. 629 630config SC1200_WDT 631 tristate "National Semiconductor PC87307/PC97307 (ala SC1200) Watchdog" 632 depends on X86 633 help 634 This is a driver for National Semiconductor PC87307/PC97307 hardware 635 watchdog cards as found on the SC1200. This watchdog is mainly used 636 for power management purposes and can be used to power down the device 637 during inactivity periods (includes interrupt activity monitoring). 638 639 To compile this driver as a module, choose M here: the 640 module will be called sc1200wdt. 641 642 Most people will say N. 643 644config SCx200_WDT 645 tristate "National Semiconductor SCx200 Watchdog" 646 depends on SCx200 && PCI 647 help 648 Enable the built-in watchdog timer support on the National 649 Semiconductor SCx200 processors. 650 651 If compiled as a module, it will be called scx200_wdt. 652 653config PC87413_WDT 654 tristate "NS PC87413 watchdog" 655 depends on X86 656 ---help--- 657 This is the driver for the hardware watchdog on the PC87413 chipset 658 This watchdog simply watches your kernel to make sure it doesn't 659 freeze, and if it does, it reboots your computer after a certain 660 amount of time. 661 662 To compile this driver as a module, choose M here: the 663 module will be called pc87413_wdt. 664 665 Most people will say N. 666 667config NV_TCO 668 tristate "nVidia TCO Timer/Watchdog" 669 depends on X86 && PCI 670 ---help--- 671 Hardware driver for the TCO timer built into the nVidia Hub family 672 (such as the MCP51). The TCO (Total Cost of Ownership) timer is a 673 watchdog timer that will reboot the machine after its second 674 expiration. The expiration time can be configured with the 675 "heartbeat" parameter. 676 677 On some motherboards the driver may fail to reset the chipset's 678 NO_REBOOT flag which prevents the watchdog from rebooting the 679 machine. If this is the case you will get a kernel message like 680 "failed to reset NO_REBOOT flag, reboot disabled by hardware". 681 682 To compile this driver as a module, choose M here: the 683 module will be called nv_tco. 684 685config RDC321X_WDT 686 tristate "RDC R-321x SoC watchdog" 687 depends on X86_RDC321X 688 help 689 This is the driver for the built in hardware watchdog 690 in the RDC R-321x SoC. 691 692 To compile this driver as a module, choose M here: the 693 module will be called rdc321x_wdt. 694 695config 60XX_WDT 696 tristate "SBC-60XX Watchdog Timer" 697 depends on X86 698 help 699 This driver can be used with the watchdog timer found on some 700 single board computers, namely the 6010 PII based computer. 701 It may well work with other cards. It reads port 0x443 to enable 702 and re-set the watchdog timer, and reads port 0x45 to disable 703 the watchdog. If you have a card that behave in similar ways, 704 you can probably make this driver work with your card as well. 705 706 You can compile this driver directly into the kernel, or use 707 it as a module. The module will be called sbc60xxwdt. 708 709config SBC8360_WDT 710 tristate "SBC8360 Watchdog Timer" 711 depends on X86 712 ---help--- 713 714 This is the driver for the hardware watchdog on the SBC8360 Single 715 Board Computer produced by Axiomtek Co., Ltd. (www.axiomtek.com). 716 717 To compile this driver as a module, choose M here: the 718 module will be called sbc8360. 719 720 Most people will say N. 721 722config SBC7240_WDT 723 tristate "SBC Nano 7240 Watchdog Timer" 724 depends on X86_32 && !UML 725 ---help--- 726 This is the driver for the hardware watchdog found on the IEI 727 single board computers EPIC Nano 7240 (and likely others). This 728 watchdog simply watches your kernel to make sure it doesn't freeze, 729 and if it does, it reboots your computer after a certain amount of 730 time. 731 732 To compile this driver as a module, choose M here: the 733 module will be called sbc7240_wdt. 734 735config CPU5_WDT 736 tristate "SMA CPU5 Watchdog" 737 depends on X86 738 ---help--- 739 TBD. 740 To compile this driver as a module, choose M here: the 741 module will be called cpu5wdt. 742 743config SMSC_SCH311X_WDT 744 tristate "SMSC SCH311X Watchdog Timer" 745 depends on X86 746 ---help--- 747 This is the driver for the hardware watchdog timer on the 748 SMSC SCH3112, SCH3114 and SCH3116 Super IO chipset 749 (LPC IO with 8042 KBC, Reset Generation, HWM and multiple 750 serial ports). 751 752 To compile this driver as a module, choose M here: the 753 module will be called sch311x_wdt. 754 755config SMSC37B787_WDT 756 tristate "Winbond SMsC37B787 Watchdog Timer" 757 depends on X86 758 ---help--- 759 This is the driver for the hardware watchdog component on the 760 Winbond SMsC37B787 chipset as used on the NetRunner Mainboard 761 from Vision Systems and maybe others. 762 763 This watchdog simply watches your kernel to make sure it doesn't 764 freeze, and if it does, it reboots your computer after a certain 765 amount of time. 766 767 Usually a userspace daemon will notify the kernel WDT driver that 768 userspace is still alive, at regular intervals. 769 770 To compile this driver as a module, choose M here: the 771 module will be called smsc37b787_wdt. 772 773 Most people will say N. 774 775config W83627HF_WDT 776 tristate "W83627HF/W83627DHG Watchdog Timer" 777 depends on X86 778 ---help--- 779 This is the driver for the hardware watchdog on the W83627HF chipset 780 as used in Advantech PC-9578 and Tyan S2721-533 motherboards 781 (and likely others). The driver also supports the W83627DHG chip. 782 This watchdog simply watches your kernel to make sure it doesn't 783 freeze, and if it does, it reboots your computer after a certain 784 amount of time. 785 786 To compile this driver as a module, choose M here: the 787 module will be called w83627hf_wdt. 788 789 Most people will say N. 790 791config W83697HF_WDT 792 tristate "W83697HF/W83697HG Watchdog Timer" 793 depends on X86 794 ---help--- 795 This is the driver for the hardware watchdog on the W83697HF/HG 796 chipset as used in Dedibox/VIA motherboards (and likely others). 797 This watchdog simply watches your kernel to make sure it doesn't 798 freeze, and if it does, it reboots your computer after a certain 799 amount of time. 800 801 To compile this driver as a module, choose M here: the 802 module will be called w83697hf_wdt. 803 804 Most people will say N. 805 806config W83697UG_WDT 807 tristate "W83697UG/W83697UF Watchdog Timer" 808 depends on X86 809 ---help--- 810 This is the driver for the hardware watchdog on the W83697UG/UF 811 chipset as used in MSI Fuzzy CX700 VIA motherboards (and likely others). 812 This watchdog simply watches your kernel to make sure it doesn't 813 freeze, and if it does, it reboots your computer after a certain 814 amount of time. 815 816 To compile this driver as a module, choose M here: the 817 module will be called w83697ug_wdt. 818 819 Most people will say N. 820 821config W83877F_WDT 822 tristate "W83877F (EMACS) Watchdog Timer" 823 depends on X86 824 ---help--- 825 This is the driver for the hardware watchdog on the W83877F chipset 826 as used in EMACS PC-104 motherboards (and likely others). This 827 watchdog simply watches your kernel to make sure it doesn't freeze, 828 and if it does, it reboots your computer after a certain amount of 829 time. 830 831 To compile this driver as a module, choose M here: the 832 module will be called w83877f_wdt. 833 834 Most people will say N. 835 836config W83977F_WDT 837 tristate "W83977F (PCM-5335) Watchdog Timer" 838 depends on X86 839 ---help--- 840 This is the driver for the hardware watchdog on the W83977F I/O chip 841 as used in AAEON's PCM-5335 SBC (and likely others). This 842 watchdog simply watches your kernel to make sure it doesn't freeze, 843 and if it does, it reboots your computer after a certain amount of 844 time. 845 846 To compile this driver as a module, choose M here: the 847 module will be called w83977f_wdt. 848 849config MACHZ_WDT 850 tristate "ZF MachZ Watchdog" 851 depends on X86 852 ---help--- 853 If you are using a ZF Micro MachZ processor, say Y here, otherwise 854 N. This is the driver for the watchdog timer built-in on that 855 processor using ZF-Logic interface. This watchdog simply watches 856 your kernel to make sure it doesn't freeze, and if it does, it 857 reboots your computer after a certain amount of time. 858 859 To compile this driver as a module, choose M here: the 860 module will be called machzwd. 861 862config SBC_EPX_C3_WATCHDOG 863 tristate "Winsystems SBC EPX-C3 watchdog" 864 depends on X86 865 ---help--- 866 This is the driver for the built-in watchdog timer on the EPX-C3 867 Single-board computer made by Winsystems, Inc. 868 869 *Note*: This hardware watchdog is not probeable and thus there 870 is no way to know if writing to its IO address will corrupt 871 your system or have any real effect. The only way to be sure 872 that this driver does what you want is to make sure you 873 are running it on an EPX-C3 from Winsystems with the watchdog 874 timer at IO address 0x1ee and 0x1ef. It will write to both those 875 IO ports. Basically, the assumption is made that if you compile 876 this driver into your kernel and/or load it as a module, that you 877 know what you are doing and that you are in fact running on an 878 EPX-C3 board! 879 880 To compile this driver as a module, choose M here: the 881 module will be called sbc_epx_c3. 882 883# M32R Architecture 884 885# M68K Architecture 886 887config M54xx_WATCHDOG 888 tristate "MCF54xx watchdog support" 889 depends on M548x 890 help 891 To compile this driver as a module, choose M here: the 892 module will be called m54xx_wdt. 893 894# MicroBlaze Architecture 895 896config XILINX_WATCHDOG 897 tristate "Xilinx Watchdog timer" 898 depends on MICROBLAZE 899 ---help--- 900 Watchdog driver for the xps_timebase_wdt ip core. 901 902 IMPORTANT: The xps_timebase_wdt parent must have the property 903 "clock-frequency" at device tree. 904 905 To compile this driver as a module, choose M here: the 906 module will be called of_xilinx_wdt. 907 908# MIPS Architecture 909 910config ATH79_WDT 911 tristate "Atheros AR71XX/AR724X/AR913X hardware watchdog" 912 depends on ATH79 913 help 914 Hardware driver for the built-in watchdog timer on the Atheros 915 AR71XX/AR724X/AR913X SoCs. 916 917config BCM47XX_WDT 918 tristate "Broadcom BCM47xx Watchdog Timer" 919 depends on BCM47XX 920 help 921 Hardware driver for the Broadcom BCM47xx Watchog Timer. 922 923config RC32434_WDT 924 tristate "IDT RC32434 SoC Watchdog Timer" 925 depends on MIKROTIK_RB532 926 help 927 Hardware driver for the IDT RC32434 SoC built-in 928 watchdog timer. 929 930 To compile this driver as a module, choose M here: the 931 module will be called rc32434_wdt. 932 933config INDYDOG 934 tristate "Indy/I2 Hardware Watchdog" 935 depends on SGI_HAS_INDYDOG 936 help 937 Hardware driver for the Indy's/I2's watchdog. This is a 938 watchdog timer that will reboot the machine after a 60 second 939 timer expired and no process has written to /dev/watchdog during 940 that time. 941 942config JZ4740_WDT 943 tristate "Ingenic jz4740 SoC hardware watchdog" 944 depends on MACH_JZ4740 945 help 946 Hardware driver for the built-in watchdog timer on Ingenic jz4740 SoCs. 947 948config WDT_MTX1 949 tristate "MTX-1 Hardware Watchdog" 950 depends on MIPS_MTX1 951 help 952 Hardware driver for the MTX-1 boards. This is a watchdog timer that 953 will reboot the machine after a 100 seconds timer expired. 954 955config PNX833X_WDT 956 tristate "PNX833x Hardware Watchdog" 957 depends on SOC_PNX8335 958 help 959 Hardware driver for the PNX833x's watchdog. This is a 960 watchdog timer that will reboot the machine after a programmable 961 timer has expired and no process has written to /dev/watchdog during 962 that time. 963 964config SIBYTE_WDOG 965 tristate "Sibyte SoC hardware watchdog" 966 depends on CPU_SB1 967 help 968 Watchdog driver for the built in watchdog hardware in Sibyte 969 SoC processors. There are apparently two watchdog timers 970 on such processors; this driver supports only the first one, 971 because currently Linux only supports exporting one watchdog 972 to userspace. 973 974 To compile this driver as a loadable module, choose M here. 975 The module will be called sb_wdog. 976 977config AR7_WDT 978 tristate "TI AR7 Watchdog Timer" 979 depends on AR7 980 help 981 Hardware driver for the TI AR7 Watchdog Timer. 982 983config TXX9_WDT 984 tristate "Toshiba TXx9 Watchdog Timer" 985 depends on CPU_TX39XX || CPU_TX49XX 986 help 987 Hardware driver for the built-in watchdog timer on TXx9 MIPS SoCs. 988 989config OCTEON_WDT 990 tristate "Cavium OCTEON SOC family Watchdog Timer" 991 depends on CPU_CAVIUM_OCTEON 992 default y 993 select EXPORT_UASM if OCTEON_WDT = m 994 help 995 Hardware driver for OCTEON's on chip watchdog timer. 996 Enables the watchdog for all cores running Linux. It 997 installs a NMI handler and pokes the watchdog based on an 998 interrupt. On first expiration of the watchdog, the 999 interrupt handler pokes it. The second expiration causes an 1000 NMI that prints a message. The third expiration causes a
1001 global soft reset. 1002 1003 When userspace has /dev/watchdog open, no poking is done 1004 from the first interrupt, it is then only poked when the 1005 device is written. 1006 1007config BCM63XX_WDT 1008 tristate "Broadcom BCM63xx hardware watchdog" 1009 depends on BCM63XX 1010 help 1011 Watchdog driver for the built in watchdog hardware in Broadcom 1012 BCM63xx SoC. 1013 1014 To compile this driver as a loadable module, choose M here. 1015 The module will be called bcm63xx_wdt. 1016 1017config LANTIQ_WDT 1018 tristate "Lantiq SoC watchdog" 1019 depends on LANTIQ 1020 help 1021 Hardware driver for the Lantiq SoC Watchdog Timer. 1022 1023# PARISC Architecture 1024 1025# POWERPC Architecture 1026 1027config GEF_WDT 1028 tristate "GE Watchdog Timer" 1029 depends on GEF_SBC610 || GEF_SBC310 || GEF_PPC9A 1030 ---help--- 1031 Watchdog timer found in a number of GE single board computers. 1032 1033config MPC5200_WDT 1034 bool "MPC52xx Watchdog Timer" 1035 depends on PPC_MPC52xx 1036 help 1037 Use General Purpose Timer (GPT) 0 on the MPC5200 as Watchdog. 1038 1039config 8xxx_WDT 1040 tristate "MPC8xxx Platform Watchdog Timer" 1041 depends on PPC_8xx || PPC_83xx || PPC_86xx 1042 help 1043 This driver is for a SoC level watchdog that exists on some 1044 Freescale PowerPC processors. So far this driver supports: 1045 - MPC8xx watchdogs 1046 - MPC83xx watchdogs 1047 - MPC86xx watchdogs 1048 1049 For BookE processors (MPC85xx) use the BOOKE_WDT driver instead. 1050 1051config MV64X60_WDT 1052 tristate "MV64X60 (Marvell Discovery) Watchdog Timer" 1053 depends on MV64X60 1054 1055config PIKA_WDT 1056 tristate "PIKA FPGA Watchdog" 1057 depends on WARP 1058 default y 1059 help 1060 This enables the watchdog in the PIKA FPGA. Currently used on 1061 the Warp platform. 1062 1063config BOOKE_WDT 1064 tristate "PowerPC Book-E Watchdog Timer" 1065 depends on BOOKE || 4xx 1066 ---help--- 1067 Watchdog driver for PowerPC Book-E chips, such as the Freescale 1068 MPC85xx SOCs and the IBM PowerPC 440. 1069 1070 Please see Documentation/watchdog/watchdog-api.txt for 1071 more information. 1072 1073config BOOKE_WDT_DEFAULT_TIMEOUT 1074 int "PowerPC Book-E Watchdog Timer Default Timeout" 1075 depends on BOOKE_WDT 1076 default 38 if FSL_BOOKE 1077 range 0 63 if FSL_BOOKE 1078 default 3 if !FSL_BOOKE 1079 range 0 3 if !FSL_BOOKE 1080 help 1081 Select the default watchdog timer period to be used by the PowerPC 1082 Book-E watchdog driver. A watchdog "event" occurs when the bit 1083 position represented by this number transitions from zero to one. 1084 1085 For Freescale Book-E processors, this is a number between 0 and 63. 1086 For other Book-E processors, this is a number between 0 and 3. 1087 1088 The value can be overidden by the wdt_period command-line parameter. 1089 1090# PPC64 Architecture 1091 1092config WATCHDOG_RTAS 1093 tristate "RTAS watchdog" 1094 depends on PPC_RTAS 1095 help 1096 This driver adds watchdog support for the RTAS watchdog. 1097 1098 To compile this driver as a module, choose M here. The module 1099 will be called wdrtas. 1100 1101# S390 Architecture 1102 1103config ZVM_WATCHDOG 1104 tristate "z/VM Watchdog Timer" 1105 depends on S390 1106 help 1107 IBM s/390 and zSeries machines running under z/VM 5.1 or later 1108 provide a virtual watchdog timer to their guest that cause a 1109 user define Control Program command to be executed after a 1110 timeout. 1111 1112 To compile this driver as a module, choose M here. The module 1113 will be called vmwatchdog. 1114 1115# SUPERH (sh + sh64) Architecture 1116 1117config SH_WDT 1118 tristate "SuperH Watchdog" 1119 depends on SUPERH && (CPU_SH3 || CPU_SH4) 1120 help 1121 This driver adds watchdog support for the integrated watchdog in the 1122 SuperH processors. If you have one of these processors and wish 1123 to have watchdog support enabled, say Y, otherwise say N. 1124 1125 As a side note, saying Y here will automatically boost HZ to 1000 1126 so that the timer has a chance to clear the overflow counter. On 1127 slower systems (such as the SH-2 and SH-3) this will likely yield 1128 some performance issues. As such, the WDT should be avoided here 1129 unless it is absolutely necessary. 1130 1131 To compile this driver as a module, choose M here: the 1132 module will be called shwdt. 1133 1134# SPARC Architecture 1135 1136# SPARC64 Architecture 1137 1138config WATCHDOG_CP1XXX 1139 tristate "CP1XXX Hardware Watchdog support" 1140 depends on SPARC64 && PCI 1141 ---help--- 1142 This is the driver for the hardware watchdog timers present on 1143 Sun Microsystems CompactPCI models CP1400 and CP1500. 1144 1145 To compile this driver as a module, choose M here: the 1146 module will be called cpwatchdog. 1147 1148 If you do not have a CompactPCI model CP1400 or CP1500, or 1149 another UltraSPARC-IIi-cEngine boardset with hardware watchdog, 1150 you should say N to this option. 1151 1152config WATCHDOG_RIO 1153 tristate "RIO Hardware Watchdog support" 1154 depends on SPARC64 && PCI 1155 help 1156 Say Y here to support the hardware watchdog capability on Sun RIO 1157 machines. The watchdog timeout period is normally one minute but 1158 can be changed with a boot-time parameter. 1159 1160# XTENSA Architecture 1161 1162# Xen Architecture 1163 1164config XEN_WDT 1165 tristate "Xen Watchdog support" 1166 depends on XEN 1167 help 1168 Say Y here to support the hypervisor watchdog capability provided 1169 by Xen 4.0 and newer. The watchdog timeout period is normally one 1170 minute but can be changed with a boot-time parameter. 1171 1172config UML_WATCHDOG 1173 tristate "UML watchdog" 1174 depends on UML 1175 1176# 1177# ISA-based Watchdog Cards 1178# 1179 1180comment "ISA-based Watchdog Cards" 1181 depends on ISA 1182 1183config PCWATCHDOG 1184 tristate "Berkshire Products ISA-PC Watchdog" 1185 depends on ISA 1186 ---help--- 1187 This is the driver for the Berkshire Products ISA-PC Watchdog card. 1188 This card simply watches your kernel to make sure it doesn't freeze, 1189 and if it does, it reboots your computer after a certain amount of 1190 time. This driver is like the WDT501 driver but for different 1191 hardware. Please read <file:Documentation/watchdog/pcwd-watchdog.txt>. The PC 1192 watchdog cards can be ordered from <http://www.berkprod.com/>. 1193 1194 To compile this driver as a module, choose M here: the 1195 module will be called pcwd. 1196 1197 Most people will say N. 1198 1199config MIXCOMWD 1200 tristate "Mixcom Watchdog" 1201 depends on ISA 1202 ---help--- 1203 This is a driver for the Mixcom hardware watchdog cards. This 1204 watchdog simply watches your kernel to make sure it doesn't freeze, 1205 and if it does, it reboots your computer after a certain amount of 1206 time. 1207 1208 To compile this driver as a module, choose M here: the 1209 module will be called mixcomwd. 1210 1211 Most people will say N. 1212 1213config WDT 1214 tristate "WDT Watchdog timer" 1215 depends on ISA 1216 ---help--- 1217 If you have a WDT500P or WDT501P watchdog board, say Y here, 1218 otherwise N. It is not possible to probe for this board, which means 1219 that you have to inform the kernel about the IO port and IRQ that 1220 is needed (you can do this via the io and irq parameters) 1221 1222 To compile this driver as a module, choose M here: the 1223 module will be called wdt. 1224 1225# 1226# PCI-based Watchdog Cards 1227# 1228 1229comment "PCI-based Watchdog Cards" 1230 depends on PCI 1231 1232config PCIPCWATCHDOG 1233 tristate "Berkshire Products PCI-PC Watchdog" 1234 depends on PCI 1235 ---help--- 1236 This is the driver for the Berkshire Products PCI-PC Watchdog card. 1237 This card simply watches your kernel to make sure it doesn't freeze, 1238 and if it does, it reboots your computer after a certain amount of 1239 time. The card can also monitor the internal temperature of the PC. 1240 More info is available at <http://www.berkprod.com/pci_pc_watchdog.htm>. 1241 1242 To compile this driver as a module, choose M here: the 1243 module will be called pcwd_pci. 1244 1245 Most people will say N. 1246 1247config WDTPCI 1248 tristate "PCI-WDT500/501 Watchdog timer" 1249 depends on PCI 1250 ---help--- 1251 If you have a PCI-WDT500/501 watchdog board, say Y here, otherwise N. 1252 1253 If you have a PCI-WDT501 watchdog board then you can enable the 1254 temperature sensor by setting the type parameter to 501. 1255 1256 If you want to enable the Fan Tachometer on the PCI-WDT501, then you 1257 can do this via the tachometer parameter. Only do this if you have a 1258 fan tachometer actually set up. 1259 1260 To compile this driver as a module, choose M here: the 1261 module will be called wdt_pci. 1262 1263# 1264# USB-based Watchdog Cards 1265# 1266 1267comment "USB-based Watchdog Cards" 1268 depends on USB 1269 1270config USBPCWATCHDOG 1271 tristate "Berkshire Products USB-PC Watchdog" 1272 depends on USB 1273 ---help--- 1274 This is the driver for the Berkshire Products USB-PC Watchdog card. 1275 This card simply watches your kernel to make sure it doesn't freeze, 1276 and if it does, it reboots your computer after a certain amount of 1277 time. The card can also monitor the internal temperature of the PC. 1278 More info is available at <http://www.berkprod.com/usb_pc_watchdog.htm>. 1279 1280 To compile this driver as a module, choose M here: the 1281 module will be called pcwd_usb. 1282 1283 Most people will say N. 1284 1285endif # WATCHDOG 1286