arch/arm/Kconfig

   1 #
   2 # For a description of the syntax of this configuration file,
   3 # see Documentation/kbuild/kconfig-language.txt.
   4 #
   5
   6 mainmenu "Linux Kernel Configuration"
   7
   8 config ARM
   9         bool
  10         default y
  11         help
  12           The ARM series is a line of low-power-consumption RISC chip designs
  13           licensed by ARM ltd and targeted at embedded applications and
  14           handhelds such as the Compaq IPAQ.  ARM-based PCs are no longer
  15           manufactured, but  legacy ARM-based PC hardware remains popular in
  16           Europe.  There is an ARM Linux project with a web page at
  17           <http://www.arm.linux.org.uk/>.
  18
  19 config MMU
  20         bool
  21         default y
  22
  23 config EISA
  24         bool
  25         ---help---
  26           The Extended Industry Standard Architecture (EISA) bus was
  27           developed as an open alternative to the IBM MicroChannel bus.
  28
  29           The EISA bus provided some of the features of the IBM MicroChannel
  30           bus while maintaining backward compatibility with cards made for
  31           the older ISA bus.  The EISA bus saw limited use between 1988 and
  32           1995 when it was made obsolete by the PCI bus.
  33
  34           Say Y here if you are building a kernel for an EISA-based machine.
  35
  36           Otherwise, say N.
  37
  38 config SBUS
  39         bool
  40
  41 config MCA
  42         bool
  43         help
  44           MicroChannel Architecture is found in some IBM PS/2 machines and
  45           laptops.  It is a bus system similar to PCI or ISA. See
  46           <file:Documentation/mca.txt> (and especially the web page given
  47           there) before attempting to build an MCA bus kernel.
  48
  49 config UID16
  50         bool
  51         default y
  52
  53 config RWSEM_GENERIC_SPINLOCK
  54         bool
  55         default y
  56
  57 config RWSEM_XCHGADD_ALGORITHM
  58         bool
  59
  60 config GENERIC_CALIBRATE_DELAY
  61         bool
  62         default y
  63
  64 config GENERIC_BUST_SPINLOCK
  65         bool
  66
  67 config GENERIC_ISA_DMA
  68         bool
  69
  70 config FIQ
  71         bool
  72
  73 source "init/Kconfig"
  74
  75 menu "System Type"
  76
  77 choice
  78         prompt "ARM system type"
  79         default ARCH_RPC
  80
  81 config ARCH_CLPS7500
  82         bool "Cirrus-CL-PS7500FE"
  83         select TIMER_ACORN
  84         select ISA
  85
  86 config ARCH_CLPS711X
  87         bool "CLPS711x/EP721x-based"
  88
  89 config ARCH_CO285
  90         bool "Co-EBSA285"
  91         select FOOTBRIDGE
  92         select FOOTBRIDGE_ADDIN
  93
  94 config ARCH_EBSA110
  95         bool "EBSA-110"
  96         select ISA
  97         help
  98           This is an evaluation board for the StrongARM processor available
  99           from Digital. It has limited hardware on-board, including an onboard
 100           Ethernet interface, two PCMCIA sockets, two serial ports and a
 101           parallel port.
 102
 103 config ARCH_CAMELOT
 104         bool "Epxa10db"
 105         help
 106           This enables support for Altera's Excalibur XA10 development board.
 107           If you would like to build your kernel to run on one of these boards
 108           then you must say 'Y' here. Otherwise say 'N'
 109
 110 config ARCH_FOOTBRIDGE
 111         bool "FootBridge"
 112         select FOOTBRIDGE
 113
 114 config ARCH_INTEGRATOR
 115         bool "Integrator"
 116         select ARM_AMBA
 117         select ICST525
 118
 119 config ARCH_IOP3XX
 120         bool "IOP3xx-based"
 121         select PCI
 122
 123 config ARCH_IXP4XX
 124         bool "IXP4xx-based"
 125         select DMABOUNCE
 126         select PCI
 127
 128 config ARCH_IXP2000
 129         bool "IXP2400/2800-based"
 130         select PCI
 131
 132 config ARCH_L7200
 133         bool "LinkUp-L7200"
 134         select FIQ
 135         help
 136           Say Y here if you intend to run this kernel on a LinkUp Systems
 137           L7200 Software Development Board which uses an ARM720T processor.
 138           Information on this board can be obtained at:
 139
 140           <http://www.linkupsys.com/>
 141
 142           If you have any questions or comments about the Linux kernel port
 143           to this board, send e-mail to <sjhill@cotw.com>.
 144
 145 config ARCH_PXA
 146         bool "PXA2xx-based"
 147
 148 config ARCH_RPC
 149         bool "RiscPC"
 150         select ARCH_ACORN
 151         select FIQ
 152         select TIMER_ACORN
 153         help
 154           On the Acorn Risc-PC, Linux can support the internal IDE disk and
 155           CD-ROM interface, serial and parallel port, and the floppy drive.
 156
 157 config ARCH_SA1100
 158         bool "SA1100-based"
 159         select ISA
 160         select ARCH_DISCONTIGMEM_ENABLE
 161
 162 config ARCH_S3C2410
 163         bool "Samsung S3C2410"
 164         help
 165           Samsung S3C2410X CPU based systems, such as the Simtec Electronics
 166           BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
 167           the Samsung SMDK2410 development board (and derviatives).
 168
 169 config ARCH_SHARK
 170         bool "Shark"
 171         select ISA
 172         select ISA_DMA
 173         select PCI
 174
 175 config ARCH_LH7A40X
 176         bool "Sharp LH7A40X"
 177         help
 178           Say Y here for systems based on one of the Sharp LH7A40X
 179           System on a Chip processors.  These CPUs include an ARM922T
 180           core with a wide array of integrated devices for
 181           hand-held and low-power applications.
 182
 183 config ARCH_OMAP
 184         bool "TI OMAP"
 185
 186 config ARCH_VERSATILE
 187         bool "Versatile"
 188         select ARM_AMBA
 189         select ICST307
 190         help
 191           This enables support for ARM Ltd Versatile board.
 192
 193 config ARCH_IMX
 194         bool "IMX"
 195
 196 config ARCH_H720X
 197         bool "Hynix-HMS720x-based"
 198         help
 199           This enables support for systems based on the Hynix HMS720x
 200
 201 config ARCH_AAEC2000
 202         bool "Agilent AAEC-2000 based"
 203         help
 204           This enables support for systems based on the Agilent AAEC-2000
 205
 206 endchoice
 207
 208 source "arch/arm/mach-clps711x/Kconfig"
 209
 210 source "arch/arm/mach-epxa10db/Kconfig"
 211
 212 source "arch/arm/mach-footbridge/Kconfig"
 213
 214 source "arch/arm/mach-integrator/Kconfig"
 215
 216 source "arch/arm/mach-iop3xx/Kconfig"
 217
 218 source "arch/arm/mach-ixp4xx/Kconfig"
 219
 220 source "arch/arm/mach-ixp2000/Kconfig"
 221
 222 source "arch/arm/mach-pxa/Kconfig"
 223
 224 source "arch/arm/mach-sa1100/Kconfig"
 225
 226 source "arch/arm/mach-omap/Kconfig"
 227
 228 source "arch/arm/mach-s3c2410/Kconfig"
 229
 230 source "arch/arm/mach-lh7a40x/Kconfig"
 231
 232 source "arch/arm/mach-imx/Kconfig"
 233
 234 source "arch/arm/mach-h720x/Kconfig"
 235
 236 source "arch/arm/mach-versatile/Kconfig"
 237
 238 source "arch/arm/mach-aaec2000/Kconfig"
 239
 240 # Definitions to make life easier
 241 config ARCH_ACORN
 242         bool
 243
 244 source arch/arm/mm/Kconfig
 245
 246 #  bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
 247 config XSCALE_PMU
 248         bool
 249         depends on CPU_XSCALE && !XSCALE_PMU_TIMER
 250         default y
 251
 252 endmenu
 253
 254 source "arch/arm/common/Kconfig"
 255
 256 config FORCE_MAX_ZONEORDER
 257         int
 258         depends on SA1111
 259         default "9"
 260
 261 menu "Bus support"
 262
 263 config ARM_AMBA
 264         bool
 265
 266 config ISA
 267         bool
 268         help
 269           Find out whether you have ISA slots on your motherboard.  ISA is the
 270           name of a bus system, i.e. the way the CPU talks to the other stuff
 271           inside your box.  Other bus systems are PCI, EISA, MicroChannel
 272           (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
 273           newer boards don't support it.  If you have ISA, say Y, otherwise N.
 274
 275 config ISA_DMA
 276         bool
 277
 278 config ISA_DMA_API
 279         bool
 280         default y
 281
 282 config PCI
 283         bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB
 284         help
 285           Find out whether you have a PCI motherboard. PCI is the name of a
 286           bus system, i.e. the way the CPU talks to the other stuff inside
 287           your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
 288           VESA. If you have PCI, say Y, otherwise N.
 289
 290           The PCI-HOWTO, available from
 291           <http://www.tldp.org/docs.html#howto>, contains valuable
 292           information about which PCI hardware does work under Linux and which
 293           doesn't.
 294
 295 # Select the host bridge type
 296 config PCI_HOST_VIA82C505
 297         bool
 298         depends on PCI && ARCH_SHARK
 299         default y
 300
 301 source "drivers/pci/Kconfig"
 302
 303 source "drivers/pcmcia/Kconfig"
 304
 305 endmenu
 306
 307 menu "Kernel Features"
 308
 309 config SMP
 310         bool "Symmetric Multi-Processing (EXPERIMENTAL)"
 311         depends on EXPERIMENTAL #&& n
 312         help
 313           This enables support for systems with more than one CPU. If you have
 314           a system with only one CPU, like most personal computers, say N. If
 315           you have a system with more than one CPU, say Y.
 316
 317           If you say N here, the kernel will run on single and multiprocessor
 318           machines, but will use only one CPU of a multiprocessor machine. If
 319           you say Y here, the kernel will run on many, but not all, single
 320           processor machines. On a single processor machine, the kernel will
 321           run faster if you say N here.
 322
 323           See also the <file:Documentation/smp.tex>,
 324           <file:Documentation/smp.txt>, <file:Documentation/i386/IO-APIC.txt>,
 325           <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
 326           <http://www.linuxdoc.org/docs.html#howto>.
 327
 328           If you don't know what to do here, say N.
 329
 330 config NR_CPUS
 331         int "Maximum number of CPUs (2-32)"
 332         range 2 32
 333         depends on SMP
 334         default "4"
 335
 336 config PREEMPT
 337         bool "Preemptible Kernel (EXPERIMENTAL)"
 338         depends on EXPERIMENTAL
 339         help
 340           This option reduces the latency of the kernel when reacting to
 341           real-time or interactive events by allowing a low priority process to
 342           be preempted even if it is in kernel mode executing a system call.
 343           This allows applications to run more reliably even when the system is
 344           under load.
 345
 346           Say Y here if you are building a kernel for a desktop, embedded
 347           or real-time system.  Say N if you are unsure.
 348
 349 config NO_IDLE_HZ
 350         bool "Dynamic tick timer"
 351         help
 352           Select this option if you want to disable continuous timer ticks
 353           and have them programmed to occur as required. This option saves
 354           power as the system can remain in idle state for longer.
 355
 356           By default dynamic tick is disabled during the boot, and can be
 357           manually enabled with:
 358
 359             echo 1 > /sys/devices/system/timer/timer0/dyn_tick
 360
 361           Alternatively, if you want dynamic tick automatically enabled
 362           during boot, pass "dyntick=enable" via the kernel command string.
 363
 364 config ARCH_DISCONTIGMEM_ENABLE
 365         bool
 366         default (ARCH_LH7A40X && !LH7A40X_CONTIGMEM)
 367         help
 368           Say Y to support efficient handling of discontiguous physical memory,
 369           for architectures which are either NUMA (Non-Uniform Memory Access)
 370           or have huge holes in the physical address space for other reasons.
 371           See <file:Documentation/vm/numa> for more.
 372
 373 source "mm/Kconfig"
 374
 375 config LEDS
 376         bool "Timer and CPU usage LEDs"
 377         depends on ARCH_CDB89712 || ARCH_CO285 || ARCH_EBSA110 || \
 378                    ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
 379                    ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
 380                    ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
 381                    ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE
 382         help
 383           If you say Y here, the LEDs on your machine will be used
 384           to provide useful information about your current system status.
 385
 386           If you are compiling a kernel for a NetWinder or EBSA-285, you will
 387           be able to select which LEDs are active using the options below. If
 388           you are compiling a kernel for the EBSA-110 or the LART however, the
 389           red LED will simply flash regularly to indicate that the system is
 390           still functional. It is safe to say Y here if you have a CATS
 391           system, but the driver will do nothing.
 392
 393 config LEDS_TIMER
 394         bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
 395                             MACH_OMAP_H2 || MACH_OMAP_PERSEUS2
 396         depends on LEDS
 397         default y if ARCH_EBSA110
 398         help
 399           If you say Y here, one of the system LEDs (the green one on the
 400           NetWinder, the amber one on the EBSA285, or the red one on the LART)
 401           will flash regularly to indicate that the system is still
 402           operational. This is mainly useful to kernel hackers who are
 403           debugging unstable kernels.
 404
 405           The LART uses the same LED for both Timer LED and CPU usage LED
 406           functions. You may choose to use both, but the Timer LED function
 407           will overrule the CPU usage LED.
 408
 409 config LEDS_CPU
 410         bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
 411                         !ARCH_OMAP) || MACH_OMAP_H2 || MACH_OMAP_PERSEUS2
 412         depends on LEDS
 413         help
 414           If you say Y here, the red LED will be used to give a good real
 415           time indication of CPU usage, by lighting whenever the idle task
 416           is not currently executing.
 417
 418           The LART uses the same LED for both Timer LED and CPU usage LED
 419           functions. You may choose to use both, but the Timer LED function
 420           will overrule the CPU usage LED.
 421
 422 config ALIGNMENT_TRAP
 423         bool
 424         default y if !ARCH_EBSA110
 425         help
 426           ARM processors can not fetch/store information which is not
 427           naturally aligned on the bus, i.e., a 4 byte fetch must start at an
 428           address divisible by 4. On 32-bit ARM processors, these non-aligned
 429           fetch/store instructions will be emulated in software if you say
 430           here, which has a severe performance impact. This is necessary for
 431           correct operation of some network protocols. With an IP-only
 432           configuration it is safe to say N, otherwise say Y.
 433
 434 endmenu
 435
 436 menu "Boot options"
 437
 438 # Compressed boot loader in ROM.  Yes, we really want to ask about
 439 # TEXT and BSS so we preserve their values in the config files.
 440 config ZBOOT_ROM_TEXT
 441         hex "Compressed ROM boot loader base address"
 442         default "0"
 443         help
 444           The physical address at which the ROM-able zImage is to be
 445           placed in the target.  Platforms which normally make use of
 446           ROM-able zImage formats normally set this to a suitable
 447           value in their defconfig file.
 448
 449           If ZBOOT_ROM is not enabled, this has no effect.
 450
 451 config ZBOOT_ROM_BSS
 452         hex "Compressed ROM boot loader BSS address"
 453         default "0"
 454         help
 455           The base address of 64KiB of read/write memory in the target
 456           for the ROM-able zImage, which must be available while the
 457           decompressor is running.  Platforms which normally make use of
 458           ROM-able zImage formats normally set this to a suitable
 459           value in their defconfig file.
 460
 461           If ZBOOT_ROM is not enabled, this has no effect.
 462
 463 config ZBOOT_ROM
 464         bool "Compressed boot loader in ROM/flash"
 465         depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
 466         help
 467           Say Y here if you intend to execute your compressed kernel image
 468           (zImage) directly from ROM or flash.  If unsure, say N.
 469
 470 config CMDLINE
 471         string "Default kernel command string"
 472         default ""
 473         help
 474           On some architectures (EBSA110 and CATS), there is currently no way
 475           for the boot loader to pass arguments to the kernel. For these
 476           architectures, you should supply some command-line options at build
 477           time by entering them here. As a minimum, you should specify the
 478           memory size and the root device (e.g., mem=64M root=/dev/nfs).
 479
 480 config XIP_KERNEL
 481         bool "Kernel Execute-In-Place from ROM"
 482         depends on !ZBOOT_ROM
 483         help
 484           Execute-In-Place allows the kernel to run from non-volatile storage
 485           directly addressable by the CPU, such as NOR flash. This saves RAM
 486           space since the text section of the kernel is not loaded from flash
 487           to RAM.  Read-write sections, such as the data section and stack,
 488           are still copied to RAM.  The XIP kernel is not compressed since
 489           it has to run directly from flash, so it will take more space to
 490           store it.  The flash address used to link the kernel object files,
 491           and for storing it, is configuration dependent. Therefore, if you
 492           say Y here, you must know the proper physical address where to
 493           store the kernel image depending on your own flash memory usage.
 494
 495           Also note that the make target becomes "make xipImage" rather than
 496           "make zImage" or "make Image".  The final kernel binary to put in
 497           ROM memory will be arch/arm/boot/xipImage.
 498
 499           If unsure, say N.
 500
 501 config XIP_PHYS_ADDR
 502         hex "XIP Kernel Physical Location"
 503         depends on XIP_KERNEL
 504         default "0x00080000"
 505         help
 506           This is the physical address in your flash memory the kernel will
 507           be linked for and stored to.  This address is dependent on your
 508           own flash usage.
 509
 510 endmenu
 511
 512 if (ARCH_SA1100 || ARCH_INTEGRATOR)
 513
 514 menu "CPU Frequency scaling"
 515
 516 source "drivers/cpufreq/Kconfig"
 517
 518 config CPU_FREQ_SA1100
 519         bool
 520         depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_H3800 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
 521         default y
 522
 523 config CPU_FREQ_SA1110
 524         bool
 525         depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
 526         default y
 527
 528 config CPU_FREQ_INTEGRATOR
 529         tristate "CPUfreq driver for ARM Integrator CPUs"
 530         depends on ARCH_INTEGRATOR && CPU_FREQ
 531         default y
 532         help
 533           This enables the CPUfreq driver for ARM Integrator CPUs.
 534
 535           For details, take a look at <file:Documentation/cpu-freq>.
 536
 537           If in doubt, say Y.
 538
 539 endmenu
 540
 541 endif
 542
 543 menu "Floating point emulation"
 544
 545 comment "At least one emulation must be selected"
 546
 547 config FPE_NWFPE
 548         bool "NWFPE math emulation"
 549         ---help---
 550           Say Y to include the NWFPE floating point emulator in the kernel.
 551           This is necessary to run most binaries. Linux does not currently
 552           support floating point hardware so you need to say Y here even if
 553           your machine has an FPA or floating point co-processor podule.
 554
 555           You may say N here if you are going to load the Acorn FPEmulator
 556           early in the bootup.
 557
 558 config FPE_NWFPE_XP
 559         bool "Support extended precision"
 560         depends on FPE_NWFPE && !CPU_BIG_ENDIAN
 561         help
 562           Say Y to include 80-bit support in the kernel floating-point
 563           emulator.  Otherwise, only 32 and 64-bit support is compiled in.
 564           Note that gcc does not generate 80-bit operations by default,
 565           so in most cases this option only enlarges the size of the
 566           floating point emulator without any good reason.
 567
 568           You almost surely want to say N here.
 569
 570 config FPE_FASTFPE
 571         bool "FastFPE math emulation (EXPERIMENTAL)"
 572         depends on !CPU_32v3 && EXPERIMENTAL
 573         ---help---
 574           Say Y here to include the FAST floating point emulator in the kernel.
 575           This is an experimental much faster emulator which now also has full
 576           precision for the mantissa.  It does not support any exceptions.
 577           It is very simple, and approximately 3-6 times faster than NWFPE.
 578
 579           It should be sufficient for most programs.  It may be not suitable
 580           for scientific calculations, but you have to check this for yourself.
 581           If you do not feel you need a faster FP emulation you should better
 582           choose NWFPE.
 583
 584 config VFP
 585         bool "VFP-format floating point maths"
 586         depends on CPU_V6 || CPU_ARM926T
 587         help
 588           Say Y to include VFP support code in the kernel. This is needed
 589           if your hardware includes a VFP unit.
 590
 591           Please see <file:Documentation/arm/VFP/release-notes.txt> for
 592           release notes and additional status information.
 593
 594           Say N if your target does not have VFP hardware.
 595
 596 endmenu
 597
 598 menu "Userspace binary formats"
 599
 600 source "fs/Kconfig.binfmt"
 601
 602 config ARTHUR
 603         tristate "RISC OS personality"
 604         help
 605           Say Y here to include the kernel code necessary if you want to run
 606           Acorn RISC OS/Arthur binaries under Linux. This code is still very
 607           experimental; if this sounds frightening, say N and sleep in peace.
 608           You can also say M here to compile this support as a module (which
 609           will be called arthur).
 610
 611 endmenu
 612
 613 menu "Power management options"
 614
 615 config PM
 616         bool "Power Management support"
 617         ---help---
 618           "Power Management" means that parts of your computer are shut
 619           off or put into a power conserving "sleep" mode if they are not
 620           being used.  There are two competing standards for doing this: APM
 621           and ACPI.  If you want to use either one, say Y here and then also
 622           to the requisite support below.
 623
 624           Power Management is most important for battery powered laptop
 625           computers; if you have a laptop, check out the Linux Laptop home
 626           page on the WWW at <http://www.linux-on-laptops.com/> or
 627           Tuxmobil - Linux on Mobile Computers at <http://www.tuxmobil.org/>
 628           and the Battery Powered Linux mini-HOWTO, available from
 629           <http://www.tldp.org/docs.html#howto>.
 630
 631           Note that, even if you say N here, Linux on the x86 architecture
 632           will issue the hlt instruction if nothing is to be done, thereby
 633           sending the processor to sleep and saving power.
 634
 635 config APM
 636         tristate "Advanced Power Management Emulation"
 637         depends on PM
 638         ---help---
 639           APM is a BIOS specification for saving power using several different
 640           techniques. This is mostly useful for battery powered laptops with
 641           APM compliant BIOSes. If you say Y here, the system time will be
 642           reset after a RESUME operation, the /proc/apm device will provide
 643           battery status information, and user-space programs will receive
 644           notification of APM "events" (e.g. battery status change).
 645
 646           If you select "Y" here, you can disable actual use of the APM
 647           BIOS by passing the "apm=off" option to the kernel at boot time.
 648
 649           Note that the APM support is almost completely disabled for
 650           machines with more than one CPU.
 651
 652           In order to use APM, you will need supporting software. For location
 653           and more information, read <file:Documentation/pm.txt> and the
 654           Battery Powered Linux mini-HOWTO, available from
 655           <http://www.tldp.org/docs.html#howto>.
 656
 657           This driver does not spin down disk drives (see the hdparm(8)
 658           manpage ("man 8 hdparm") for that), and it doesn't turn off
 659           VESA-compliant "green" monitors.
 660
 661           This driver does not support the TI 4000M TravelMate and the ACER
 662           486/DX4/75 because they don't have compliant BIOSes. Many "green"
 663           desktop machines also don't have compliant BIOSes, and this driver
 664           may cause those machines to panic during the boot phase.
 665
 666           Generally, if you don't have a battery in your machine, there isn't
 667           much point in using this driver and you should say N. If you get
 668           random kernel OOPSes or reboots that don't seem to be related to
 669           anything, try disabling/enabling this option (or disabling/enabling
 670           APM in your BIOS).
 671
 672           Some other things you should try when experiencing seemingly random,
 673           "weird" problems:
 674
 675           1) make sure that you have enough swap space and that it is
 676           enabled.
 677           2) pass the "no-hlt" option to the kernel
 678           3) switch on floating point emulation in the kernel and pass
 679           the "no387" option to the kernel
 680           4) pass the "floppy=nodma" option to the kernel
 681           5) pass the "mem=4M" option to the kernel (thereby disabling
 682           all but the first 4 MB of RAM)
 683           6) make sure that the CPU is not over clocked.
 684           7) read the sig11 FAQ at <http://www.bitwizard.nl/sig11/>
 685           8) disable the cache from your BIOS settings
 686           9) install a fan for the video card or exchange video RAM
 687           10) install a better fan for the CPU
 688           11) exchange RAM chips
 689           12) exchange the motherboard.
 690
 691           To compile this driver as a module, choose M here: the
 692           module will be called apm.
 693
 694 endmenu
 695
 696 menu "Device Drivers"
 697
 698 source "drivers/base/Kconfig"
 699
 700 if ALIGNMENT_TRAP
 701 source "drivers/mtd/Kconfig"
 702 endif
 703
 704 source "drivers/parport/Kconfig"
 705
 706 source "drivers/pnp/Kconfig"
 707
 708 source "drivers/block/Kconfig"
 709
 710 source "drivers/acorn/block/Kconfig"
 711
 712 if PCMCIA || ARCH_CLPS7500 || ARCH_IOP3XX || ARCH_IXP4XX \
 713         || ARCH_L7200 || ARCH_LH7A40X || ARCH_PXA || ARCH_RPC \
 714         || ARCH_S3C2410 || ARCH_SA1100 || ARCH_SHARK || FOOTBRIDGE
 715 source "drivers/ide/Kconfig"
 716 endif
 717
 718 source "drivers/scsi/Kconfig"
 719
 720 source "drivers/md/Kconfig"
 721
 722 source "drivers/message/fusion/Kconfig"
 723
 724 source "drivers/ieee1394/Kconfig"
 725
 726 source "drivers/message/i2o/Kconfig"
 727
 728 source "net/Kconfig"
 729
 730 source "drivers/isdn/Kconfig"
 731
 732 # input before char - char/joystick depends on it. As does USB.
 733
 734 source "drivers/input/Kconfig"
 735
 736 source "drivers/char/Kconfig"
 737
 738 source "drivers/i2c/Kconfig"
 739
 740 #source "drivers/l3/Kconfig"
 741
 742 source "drivers/misc/Kconfig"
 743
 744 source "drivers/media/Kconfig"
 745
 746 source "drivers/video/Kconfig"
 747
 748 source "sound/Kconfig"
 749
 750 source "drivers/usb/Kconfig"
 751
 752 source "drivers/mmc/Kconfig"
 753
 754 endmenu
 755
 756 source "fs/Kconfig"
 757
 758 source "arch/arm/oprofile/Kconfig"
 759
 760 source "arch/arm/Kconfig.debug"
 761
 762 source "security/Kconfig"
 763
 764 source "crypto/Kconfig"
 765
 766 source "lib/Kconfig"