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         select HAVE_AOUT
  12         select HAVE_IDE
  13         select RTC_LIB
  14         select SYS_SUPPORTS_APM_EMULATION
  15         select HAVE_OPROFILE
  16         select HAVE_ARCH_KGDB
  17         select HAVE_KPROBES if (!XIP_KERNEL)
  18         select HAVE_KRETPROBES if (HAVE_KPROBES)
  19         select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
  20         select HAVE_GENERIC_DMA_COHERENT
  21         help
  22           The ARM series is a line of low-power-consumption RISC chip designs
  23           licensed by ARM Ltd and targeted at embedded applications and
  24           handhelds such as the Compaq IPAQ.  ARM-based PCs are no longer
  25           manufactured, but legacy ARM-based PC hardware remains popular in
  26           Europe.  There is an ARM Linux project with a web page at
  27           <http://www.arm.linux.org.uk/>.
  28
  29 config HAVE_PWM
  30         bool
  31
  32 config SYS_SUPPORTS_APM_EMULATION
  33         bool
  34
  35 config GENERIC_GPIO
  36         bool
  37         default n
  38
  39 config GENERIC_TIME
  40         bool
  41         default n
  42
  43 config GENERIC_CLOCKEVENTS
  44         bool
  45         default n
  46
  47 config GENERIC_CLOCKEVENTS_BROADCAST
  48         bool
  49         depends on GENERIC_CLOCKEVENTS
  50         default y if SMP && !LOCAL_TIMERS
  51
  52 config MMU
  53         bool
  54         default y
  55
  56 config NO_IOPORT
  57         bool
  58         default n
  59
  60 config EISA
  61         bool
  62         ---help---
  63           The Extended Industry Standard Architecture (EISA) bus was
  64           developed as an open alternative to the IBM MicroChannel bus.
  65
  66           The EISA bus provided some of the features of the IBM MicroChannel
  67           bus while maintaining backward compatibility with cards made for
  68           the older ISA bus.  The EISA bus saw limited use between 1988 and
  69           1995 when it was made obsolete by the PCI bus.
  70
  71           Say Y here if you are building a kernel for an EISA-based machine.
  72
  73           Otherwise, say N.
  74
  75 config SBUS
  76         bool
  77
  78 config MCA
  79         bool
  80         help
  81           MicroChannel Architecture is found in some IBM PS/2 machines and
  82           laptops.  It is a bus system similar to PCI or ISA. See
  83           <file:Documentation/mca.txt> (and especially the web page given
  84           there) before attempting to build an MCA bus kernel.
  85
  86 config GENERIC_HARDIRQS
  87         bool
  88         default y
  89
  90 config STACKTRACE_SUPPORT
  91         bool
  92         default y
  93
  94 config HAVE_LATENCYTOP_SUPPORT
  95         bool
  96         depends on !SMP
  97         default y
  98
  99 config LOCKDEP_SUPPORT
 100         bool
 101         default y
 102
 103 config TRACE_IRQFLAGS_SUPPORT
 104         bool
 105         default y
 106
 107 config HARDIRQS_SW_RESEND
 108         bool
 109         default y
 110
 111 config GENERIC_IRQ_PROBE
 112         bool
 113         default y
 114
 115 config GENERIC_LOCKBREAK
 116         bool
 117         default y
 118         depends on SMP && PREEMPT
 119
 120 config RWSEM_GENERIC_SPINLOCK
 121         bool
 122         default y
 123
 124 config RWSEM_XCHGADD_ALGORITHM
 125         bool
 126
 127 config ARCH_HAS_ILOG2_U32
 128         bool
 129         default n
 130
 131 config ARCH_HAS_ILOG2_U64
 132         bool
 133         default n
 134
 135 config GENERIC_HWEIGHT
 136         bool
 137         default y
 138
 139 config GENERIC_CALIBRATE_DELAY
 140         bool
 141         default y
 142
 143 config ARCH_MAY_HAVE_PC_FDC
 144         bool
 145
 146 config ZONE_DMA
 147         bool
 148
 149 config GENERIC_ISA_DMA
 150         bool
 151
 152 config FIQ
 153         bool
 154
 155 config ARCH_MTD_XIP
 156         bool
 157
 158 config GENERIC_HARDIRQS_NO__DO_IRQ
 159         def_bool y
 160
 161 if OPROFILE
 162
 163 config OPROFILE_ARMV6
 164         def_bool y
 165         depends on CPU_V6 && !SMP
 166         select OPROFILE_ARM11_CORE
 167
 168 config OPROFILE_MPCORE
 169         def_bool y
 170         depends on CPU_V6 && SMP
 171         select OPROFILE_ARM11_CORE
 172
 173 config OPROFILE_ARM11_CORE
 174         bool
 175
 176 config OPROFILE_ARMV7
 177         def_bool y
 178         depends on CPU_V7 && !SMP
 179         bool
 180
 181 endif
 182
 183 config VECTORS_BASE
 184         hex
 185         default 0xffff0000 if MMU || CPU_HIGH_VECTOR
 186         default DRAM_BASE if REMAP_VECTORS_TO_RAM
 187         default 0x00000000
 188         help
 189           The base address of exception vectors.
 190
 191 source "init/Kconfig"
 192
 193 source "kernel/Kconfig.freezer"
 194
 195 menu "System Type"
 196
 197 choice
 198         prompt "ARM system type"
 199         default ARCH_VERSATILE
 200
 201 config ARCH_AAEC2000
 202         bool "Agilent AAEC-2000 based"
 203         select CPU_ARM920T
 204         select ARM_AMBA
 205         select HAVE_CLK
 206         help
 207           This enables support for systems based on the Agilent AAEC-2000
 208
 209 config ARCH_INTEGRATOR
 210         bool "ARM Ltd. Integrator family"
 211         select ARM_AMBA
 212         select HAVE_CLK
 213         select COMMON_CLKDEV
 214         select ICST525
 215         help
 216           Support for ARM's Integrator platform.
 217
 218 config ARCH_REALVIEW
 219         bool "ARM Ltd. RealView family"
 220         select ARM_AMBA
 221         select HAVE_CLK
 222         select COMMON_CLKDEV
 223         select ICST307
 224         select GENERIC_TIME
 225         select GENERIC_CLOCKEVENTS
 226         help
 227           This enables support for ARM Ltd RealView boards.
 228
 229 config ARCH_VERSATILE
 230         bool "ARM Ltd. Versatile family"
 231         select ARM_AMBA
 232         select ARM_VIC
 233         select HAVE_CLK
 234         select COMMON_CLKDEV
 235         select ICST307
 236         select GENERIC_TIME
 237         select GENERIC_CLOCKEVENTS
 238         help
 239           This enables support for ARM Ltd Versatile board.
 240
 241 config ARCH_AT91
 242         bool "Atmel AT91"
 243         select GENERIC_GPIO
 244         select ARCH_REQUIRE_GPIOLIB
 245         select HAVE_CLK
 246         help
 247           This enables support for systems based on the Atmel AT91RM9200,
 248           AT91SAM9 and AT91CAP9 processors.
 249
 250 config ARCH_CLPS711X
 251         bool "Cirrus Logic CLPS711x/EP721x-based"
 252         select CPU_ARM720T
 253         help
 254           Support for Cirrus Logic 711x/721x based boards.
 255
 256 config ARCH_EBSA110
 257         bool "EBSA-110"
 258         select CPU_SA110
 259         select ISA
 260         select NO_IOPORT
 261         help
 262           This is an evaluation board for the StrongARM processor available
 263           from Digital. It has limited hardware on-board, including an
 264           Ethernet interface, two PCMCIA sockets, two serial ports and a
 265           parallel port.
 266
 267 config ARCH_EP93XX
 268         bool "EP93xx-based"
 269         select CPU_ARM920T
 270         select ARM_AMBA
 271         select ARM_VIC
 272         select GENERIC_GPIO
 273         select HAVE_CLK
 274         select COMMON_CLKDEV
 275         select ARCH_REQUIRE_GPIOLIB
 276         help
 277           This enables support for the Cirrus EP93xx series of CPUs.
 278
 279 config ARCH_GEMINI
 280         bool "Cortina Systems Gemini"
 281         select CPU_FA526
 282         select GENERIC_GPIO
 283         select ARCH_REQUIRE_GPIOLIB
 284         help
 285           Support for the Cortina Systems Gemini family SoCs
 286
 287 config ARCH_FOOTBRIDGE
 288         bool "FootBridge"
 289         select CPU_SA110
 290         select FOOTBRIDGE
 291         help
 292           Support for systems based on the DC21285 companion chip
 293           ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
 294
 295 config ARCH_NETX
 296         bool "Hilscher NetX based"
 297         select CPU_ARM926T
 298         select ARM_VIC
 299         select GENERIC_CLOCKEVENTS
 300         select GENERIC_TIME
 301         help
 302           This enables support for systems based on the Hilscher NetX Soc
 303
 304 config ARCH_H720X
 305         bool "Hynix HMS720x-based"
 306         select CPU_ARM720T
 307         select ISA_DMA_API
 308         help
 309           This enables support for systems based on the Hynix HMS720x
 310
 311 config ARCH_IMX
 312         bool "IMX"
 313         select CPU_ARM920T
 314         select GENERIC_GPIO
 315         select GENERIC_TIME
 316         select GENERIC_CLOCKEVENTS
 317         help
 318           Support for Motorola's i.MX family of processors (MX1, MXL).
 319
 320 config ARCH_IOP13XX
 321         bool "IOP13xx-based"
 322         depends on MMU
 323         select CPU_XSC3
 324         select PLAT_IOP
 325         select PCI
 326         select ARCH_SUPPORTS_MSI
 327         select VMSPLIT_1G
 328         help
 329           Support for Intel's IOP13XX (XScale) family of processors.
 330
 331 config ARCH_IOP32X
 332         bool "IOP32x-based"
 333         depends on MMU
 334         select CPU_XSCALE
 335         select PLAT_IOP
 336         select PCI
 337         select GENERIC_GPIO
 338         select ARCH_REQUIRE_GPIOLIB
 339         help
 340           Support for Intel's 80219 and IOP32X (XScale) family of
 341           processors.
 342
 343 config ARCH_IOP33X
 344         bool "IOP33x-based"
 345         depends on MMU
 346         select CPU_XSCALE
 347         select PLAT_IOP
 348         select PCI
 349         select GENERIC_GPIO
 350         select ARCH_REQUIRE_GPIOLIB
 351         help
 352           Support for Intel's IOP33X (XScale) family of processors.
 353
 354 config ARCH_IXP23XX
 355         bool "IXP23XX-based"
 356         depends on MMU
 357         select CPU_XSC3
 358         select PCI
 359         help
 360           Support for Intel's IXP23xx (XScale) family of processors.
 361
 362 config ARCH_IXP2000
 363         bool "IXP2400/2800-based"
 364         depends on MMU
 365         select CPU_XSCALE
 366         select PCI
 367         help
 368           Support for Intel's IXP2400/2800 (XScale) family of processors.
 369
 370 config ARCH_IXP4XX
 371         bool "IXP4xx-based"
 372         depends on MMU
 373         select CPU_XSCALE
 374         select GENERIC_GPIO
 375         select GENERIC_TIME
 376         select GENERIC_CLOCKEVENTS
 377         select DMABOUNCE if PCI
 378         help
 379           Support for Intel's IXP4XX (XScale) family of processors.
 380
 381 config ARCH_L7200
 382         bool "LinkUp-L7200"
 383         select CPU_ARM720T
 384         select FIQ
 385         help
 386           Say Y here if you intend to run this kernel on a LinkUp Systems
 387           L7200 Software Development Board which uses an ARM720T processor.
 388           Information on this board can be obtained at:
 389
 390           <http://www.linkupsys.com/>
 391
 392           If you have any questions or comments about the Linux kernel port
 393           to this board, send e-mail to <sjhill@cotw.com>.
 394
 395 config ARCH_KIRKWOOD
 396         bool "Marvell Kirkwood"
 397         select CPU_FEROCEON
 398         select PCI
 399         select GENERIC_GPIO
 400         select GENERIC_TIME
 401         select GENERIC_CLOCKEVENTS
 402         select PLAT_ORION
 403         help
 404           Support for the following Marvell Kirkwood series SoCs:
 405           88F6180, 88F6192 and 88F6281.
 406
 407 config ARCH_KS8695
 408         bool "Micrel/Kendin KS8695"
 409         select CPU_ARM922T
 410         select GENERIC_GPIO
 411         select ARCH_REQUIRE_GPIOLIB
 412         help
 413           Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
 414           System-on-Chip devices.
 415
 416 config ARCH_NS9XXX
 417         bool "NetSilicon NS9xxx"
 418         select CPU_ARM926T
 419         select GENERIC_GPIO
 420         select GENERIC_TIME
 421         select GENERIC_CLOCKEVENTS
 422         select HAVE_CLK
 423         help
 424           Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
 425           System.
 426
 427           <http://www.digi.com/products/microprocessors/index.jsp>
 428
 429 config ARCH_LOKI
 430         bool "Marvell Loki (88RC8480)"
 431         select CPU_FEROCEON
 432         select GENERIC_TIME
 433         select GENERIC_CLOCKEVENTS
 434         select PLAT_ORION
 435         help
 436           Support for the Marvell Loki (88RC8480) SoC.
 437
 438 config ARCH_MV78XX0
 439         bool "Marvell MV78xx0"
 440         select CPU_FEROCEON
 441         select PCI
 442         select GENERIC_GPIO
 443         select GENERIC_TIME
 444         select GENERIC_CLOCKEVENTS
 445         select PLAT_ORION
 446         help
 447           Support for the following Marvell MV78xx0 series SoCs:
 448           MV781x0, MV782x0.
 449
 450 config ARCH_MXC
 451         bool "Freescale MXC/iMX-based"
 452         select GENERIC_TIME
 453         select GENERIC_CLOCKEVENTS
 454         select ARCH_MTD_XIP
 455         select GENERIC_GPIO
 456         select ARCH_REQUIRE_GPIOLIB
 457         help
 458           Support for Freescale MXC/iMX-based family of processors
 459
 460 config ARCH_ORION5X
 461         bool "Marvell Orion"
 462         depends on MMU
 463         select CPU_FEROCEON
 464         select PCI
 465         select GENERIC_GPIO
 466         select GENERIC_TIME
 467         select GENERIC_CLOCKEVENTS
 468         select PLAT_ORION
 469         help
 470           Support for the following Marvell Orion 5x series SoCs:
 471           Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
 472           Orion-2 (5281), Orion-1-90 (6183).
 473
 474 config ARCH_PNX4008
 475         bool "Philips Nexperia PNX4008 Mobile"
 476         select CPU_ARM926T
 477         select HAVE_CLK
 478         help
 479           This enables support for Philips PNX4008 mobile platform.
 480
 481 config ARCH_PXA
 482         bool "PXA2xx/PXA3xx-based"
 483         depends on MMU
 484         select ARCH_MTD_XIP
 485         select GENERIC_GPIO
 486         select HAVE_CLK
 487         select COMMON_CLKDEV
 488         select ARCH_REQUIRE_GPIOLIB
 489         select HAVE_CLK
 490         select COMMON_CLKDEV
 491         select GENERIC_TIME
 492         select GENERIC_CLOCKEVENTS
 493         select TICK_ONESHOT
 494         select PLAT_PXA
 495         help
 496           Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
 497
 498 config ARCH_MMP
 499         bool "Marvell PXA168/910"
 500         depends on MMU
 501         select GENERIC_GPIO
 502         select ARCH_REQUIRE_GPIOLIB
 503         select HAVE_CLK
 504         select COMMON_CLKDEV
 505         select GENERIC_TIME
 506         select GENERIC_CLOCKEVENTS
 507         select TICK_ONESHOT
 508         select PLAT_PXA
 509         help
 510           Support for Marvell's PXA168/910 processor line.
 511
 512 config ARCH_RPC
 513         bool "RiscPC"
 514         select ARCH_ACORN
 515         select FIQ
 516         select TIMER_ACORN
 517         select ARCH_MAY_HAVE_PC_FDC
 518         select HAVE_PATA_PLATFORM
 519         select ISA_DMA_API
 520         select NO_IOPORT
 521         select ARCH_SPARSEMEM_ENABLE
 522         help
 523           On the Acorn Risc-PC, Linux can support the internal IDE disk and
 524           CD-ROM interface, serial and parallel port, and the floppy drive.
 525
 526 config ARCH_SA1100
 527         bool "SA1100-based"
 528         select CPU_SA1100
 529         select ISA
 530         select ARCH_SPARSEMEM_ENABLE
 531         select ARCH_MTD_XIP
 532         select GENERIC_GPIO
 533         select GENERIC_TIME
 534         select GENERIC_CLOCKEVENTS
 535         select HAVE_CLK
 536         select TICK_ONESHOT
 537         select ARCH_REQUIRE_GPIOLIB
 538         help
 539           Support for StrongARM 11x0 based boards.
 540
 541 config ARCH_S3C2410
 542         bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
 543         select GENERIC_GPIO
 544         select HAVE_CLK
 545         help
 546           Samsung S3C2410X CPU based systems, such as the Simtec Electronics
 547           BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
 548           the Samsung SMDK2410 development board (and derivatives).
 549
 550 config ARCH_S3C64XX
 551         bool "Samsung S3C64XX"
 552         select GENERIC_GPIO
 553         select HAVE_CLK
 554         help
 555           Samsung S3C64XX series based systems
 556
 557 config ARCH_SHARK
 558         bool "Shark"
 559         select CPU_SA110
 560         select ISA
 561         select ISA_DMA
 562         select ZONE_DMA
 563         select PCI
 564         help
 565           Support for the StrongARM based Digital DNARD machine, also known
 566           as "Shark" (<http://www.shark-linux.de/shark.html>).
 567
 568 config ARCH_LH7A40X
 569         bool "Sharp LH7A40X"
 570         select CPU_ARM922T
 571         select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
 572         select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
 573         help
 574           Say Y here for systems based on one of the Sharp LH7A40X
 575           System on a Chip processors.  These CPUs include an ARM922T
 576           core with a wide array of integrated devices for
 577           hand-held and low-power applications.
 578
 579 config ARCH_DAVINCI
 580         bool "TI DaVinci"
 581         select CPU_ARM926T
 582         select GENERIC_TIME
 583         select GENERIC_CLOCKEVENTS
 584         select GENERIC_GPIO
 585         select ARCH_REQUIRE_GPIOLIB
 586         select HAVE_CLK
 587         select ZONE_DMA
 588         help
 589           Support for TI's DaVinci platform.
 590
 591 config ARCH_OMAP
 592         bool "TI OMAP"
 593         select GENERIC_GPIO
 594         select HAVE_CLK
 595         select ARCH_REQUIRE_GPIOLIB
 596         select GENERIC_TIME
 597         select GENERIC_CLOCKEVENTS
 598         help
 599           Support for TI's OMAP platform (OMAP1 and OMAP2).
 600
 601 config ARCH_MSM
 602         bool "Qualcomm MSM"
 603         select CPU_V6
 604         select GENERIC_TIME
 605         select GENERIC_CLOCKEVENTS
 606         help
 607           Support for Qualcomm MSM7K based systems.  This runs on the ARM11
 608           apps processor of the MSM7K and depends on a shared memory
 609           interface to the ARM9 modem processor which runs the baseband stack
 610           and controls some vital subsystems (clock and power control, etc).
 611
 612 config ARCH_W90X900
 613         bool "Nuvoton W90X900 CPU"
 614         select CPU_ARM926T
 615         help
 616                 Support for Nuvoton (Winbond logic dept.) ARM9 processor,You
 617                 can login www.mcuos.com or www.nuvoton.com to know more.
 618
 619 endchoice
 620
 621 source "arch/arm/mach-clps711x/Kconfig"
 622
 623 source "arch/arm/mach-ep93xx/Kconfig"
 624
 625 source "arch/arm/mach-footbridge/Kconfig"
 626
 627 source "arch/arm/mach-gemini/Kconfig"
 628
 629 source "arch/arm/mach-integrator/Kconfig"
 630
 631 source "arch/arm/mach-iop32x/Kconfig"
 632
 633 source "arch/arm/mach-iop33x/Kconfig"
 634
 635 source "arch/arm/mach-iop13xx/Kconfig"
 636
 637 source "arch/arm/mach-ixp4xx/Kconfig"
 638
 639 source "arch/arm/mach-ixp2000/Kconfig"
 640
 641 source "arch/arm/mach-ixp23xx/Kconfig"
 642
 643 source "arch/arm/mach-loki/Kconfig"
 644
 645 source "arch/arm/mach-mv78xx0/Kconfig"
 646
 647 source "arch/arm/mach-pxa/Kconfig"
 648 source "arch/arm/plat-pxa/Kconfig"
 649
 650 source "arch/arm/mach-mmp/Kconfig"
 651
 652 source "arch/arm/mach-sa1100/Kconfig"
 653
 654 source "arch/arm/plat-omap/Kconfig"
 655
 656 source "arch/arm/mach-omap1/Kconfig"
 657
 658 source "arch/arm/mach-omap2/Kconfig"
 659
 660 source "arch/arm/mach-orion5x/Kconfig"
 661
 662 source "arch/arm/mach-kirkwood/Kconfig"
 663
 664 source "arch/arm/plat-s3c24xx/Kconfig"
 665 source "arch/arm/plat-s3c64xx/Kconfig"
 666 source "arch/arm/plat-s3c/Kconfig"
 667
 668 if ARCH_S3C2410
 669 source "arch/arm/mach-s3c2400/Kconfig"
 670 source "arch/arm/mach-s3c2410/Kconfig"
 671 source "arch/arm/mach-s3c2412/Kconfig"
 672 source "arch/arm/mach-s3c2440/Kconfig"
 673 source "arch/arm/mach-s3c2442/Kconfig"
 674 source "arch/arm/mach-s3c2443/Kconfig"
 675 endif
 676
 677 if ARCH_S3C64XX
 678 source "arch/arm/mach-s3c6400/Kconfig"
 679 source "arch/arm/mach-s3c6410/Kconfig"
 680 endif
 681
 682 source "arch/arm/mach-lh7a40x/Kconfig"
 683
 684 source "arch/arm/mach-imx/Kconfig"
 685
 686 source "arch/arm/mach-h720x/Kconfig"
 687
 688 source "arch/arm/mach-versatile/Kconfig"
 689
 690 source "arch/arm/mach-aaec2000/Kconfig"
 691
 692 source "arch/arm/mach-realview/Kconfig"
 693
 694 source "arch/arm/mach-at91/Kconfig"
 695
 696 source "arch/arm/plat-mxc/Kconfig"
 697
 698 source "arch/arm/mach-netx/Kconfig"
 699
 700 source "arch/arm/mach-ns9xxx/Kconfig"
 701
 702 source "arch/arm/mach-davinci/Kconfig"
 703
 704 source "arch/arm/mach-ks8695/Kconfig"
 705
 706 source "arch/arm/mach-msm/Kconfig"
 707
 708 source "arch/arm/mach-w90x900/Kconfig"
 709
 710 # Definitions to make life easier
 711 config ARCH_ACORN
 712         bool
 713
 714 config PLAT_IOP
 715         bool
 716
 717 config PLAT_ORION
 718         bool
 719
 720 config PLAT_PXA
 721         bool
 722
 723 source arch/arm/mm/Kconfig
 724
 725 config IWMMXT
 726         bool "Enable iWMMXt support"
 727         depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
 728         default y if PXA27x || PXA3xx || ARCH_MMP
 729         help
 730           Enable support for iWMMXt context switching at run time if
 731           running on a CPU that supports it.
 732
 733 #  bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
 734 config XSCALE_PMU
 735         bool
 736         depends on CPU_XSCALE && !XSCALE_PMU_TIMER
 737         default y
 738
 739 if !MMU
 740 source "arch/arm/Kconfig-nommu"
 741 endif
 742
 743 endmenu
 744
 745 source "arch/arm/common/Kconfig"
 746
 747 config FORCE_MAX_ZONEORDER
 748         int
 749         depends on SA1111
 750         default "9"
 751
 752 menu "Bus support"
 753
 754 config ARM_AMBA
 755         bool
 756
 757 config ISA
 758         bool
 759         help
 760           Find out whether you have ISA slots on your motherboard.  ISA is the
 761           name of a bus system, i.e. the way the CPU talks to the other stuff
 762           inside your box.  Other bus systems are PCI, EISA, MicroChannel
 763           (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
 764           newer boards don't support it.  If you have ISA, say Y, otherwise N.
 765
 766 # Select ISA DMA controller support
 767 config ISA_DMA
 768         bool
 769         select ISA_DMA_API
 770
 771 # Select ISA DMA interface
 772 config ISA_DMA_API
 773         bool
 774
 775 config PCI
 776         bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
 777         help
 778           Find out whether you have a PCI motherboard. PCI is the name of a
 779           bus system, i.e. the way the CPU talks to the other stuff inside
 780           your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
 781           VESA. If you have PCI, say Y, otherwise N.
 782
 783 config PCI_SYSCALL
 784         def_bool PCI
 785
 786 # Select the host bridge type
 787 config PCI_HOST_VIA82C505
 788         bool
 789         depends on PCI && ARCH_SHARK
 790         default y
 791
 792 config PCI_HOST_ITE8152
 793         bool
 794         depends on PCI && MACH_ARMCORE
 795         default y
 796         select DMABOUNCE
 797
 798 source "drivers/pci/Kconfig"
 799
 800 source "drivers/pcmcia/Kconfig"
 801
 802 endmenu
 803
 804 menu "Kernel Features"
 805
 806 source "kernel/time/Kconfig"
 807
 808 config SMP
 809         bool "Symmetric Multi-Processing (EXPERIMENTAL)"
 810         depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
 811         select USE_GENERIC_SMP_HELPERS
 812         help
 813           This enables support for systems with more than one CPU. If you have
 814           a system with only one CPU, like most personal computers, say N. If
 815           you have a system with more than one CPU, say Y.
 816
 817           If you say N here, the kernel will run on single and multiprocessor
 818           machines, but will use only one CPU of a multiprocessor machine. If
 819           you say Y here, the kernel will run on many, but not all, single
 820           processor machines. On a single processor machine, the kernel will
 821           run faster if you say N here.
 822
 823           See also <file:Documentation/i386/IO-APIC.txt>,
 824           <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
 825           <http://www.linuxdoc.org/docs.html#howto>.
 826
 827           If you don't know what to do here, say N.
 828
 829 choice
 830         prompt "Memory split"
 831         default VMSPLIT_3G
 832         help
 833           Select the desired split between kernel and user memory.
 834
 835           If you are not absolutely sure what you are doing, leave this
 836           option alone!
 837
 838         config VMSPLIT_3G
 839                 bool "3G/1G user/kernel split"
 840         config VMSPLIT_2G
 841                 bool "2G/2G user/kernel split"
 842         config VMSPLIT_1G
 843                 bool "1G/3G user/kernel split"
 844 endchoice
 845
 846 config PAGE_OFFSET
 847         hex
 848         default 0x40000000 if VMSPLIT_1G
 849         default 0x80000000 if VMSPLIT_2G
 850         default 0xC0000000
 851
 852 config NR_CPUS
 853         int "Maximum number of CPUs (2-32)"
 854         range 2 32
 855         depends on SMP
 856         default "4"
 857
 858 config HOTPLUG_CPU
 859         bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
 860         depends on SMP && HOTPLUG && EXPERIMENTAL
 861         help
 862           Say Y here to experiment with turning CPUs off and on.  CPUs
 863           can be controlled through /sys/devices/system/cpu.
 864
 865 config LOCAL_TIMERS
 866         bool "Use local timer interrupts"
 867         depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || REALVIEW_EB_A9MP)
 868         default y
 869         help
 870           Enable support for local timers on SMP platforms, rather then the
 871           legacy IPI broadcast method.  Local timers allows the system
 872           accounting to be spread across the timer interval, preventing a
 873           "thundering herd" at every timer tick.
 874
 875 config PREEMPT
 876         bool "Preemptible Kernel (EXPERIMENTAL)"
 877         depends on EXPERIMENTAL
 878         help
 879           This option reduces the latency of the kernel when reacting to
 880           real-time or interactive events by allowing a low priority process to
 881           be preempted even if it is in kernel mode executing a system call.
 882           This allows applications to run more reliably even when the system is
 883           under load.
 884
 885           Say Y here if you are building a kernel for a desktop, embedded
 886           or real-time system.  Say N if you are unsure.
 887
 888 config HZ
 889         int
 890         default 128 if ARCH_L7200
 891         default 200 if ARCH_EBSA110 || ARCH_S3C2410
 892         default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
 893         default AT91_TIMER_HZ if ARCH_AT91
 894         default 100
 895
 896 config AEABI
 897         bool "Use the ARM EABI to compile the kernel"
 898         help
 899           This option allows for the kernel to be compiled using the latest
 900           ARM ABI (aka EABI).  This is only useful if you are using a user
 901           space environment that is also compiled with EABI.
 902
 903           Since there are major incompatibilities between the legacy ABI and
 904           EABI, especially with regard to structure member alignment, this
 905           option also changes the kernel syscall calling convention to
 906           disambiguate both ABIs and allow for backward compatibility support
 907           (selected with CONFIG_OABI_COMPAT).
 908
 909           To use this you need GCC version 4.0.0 or later.
 910
 911 config OABI_COMPAT
 912         bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
 913         depends on AEABI && EXPERIMENTAL
 914         default y
 915         help
 916           This option preserves the old syscall interface along with the
 917           new (ARM EABI) one. It also provides a compatibility layer to
 918           intercept syscalls that have structure arguments which layout
 919           in memory differs between the legacy ABI and the new ARM EABI
 920           (only for non "thumb" binaries). This option adds a tiny
 921           overhead to all syscalls and produces a slightly larger kernel.
 922           If you know you'll be using only pure EABI user space then you
 923           can say N here. If this option is not selected and you attempt
 924           to execute a legacy ABI binary then the result will be
 925           UNPREDICTABLE (in fact it can be predicted that it won't work
 926           at all). If in doubt say Y.
 927
 928 config ARCH_FLATMEM_HAS_HOLES
 929         bool
 930         default y
 931         depends on FLATMEM
 932
 933 # Discontigmem is deprecated
 934 config ARCH_DISCONTIGMEM_ENABLE
 935         bool
 936
 937 config ARCH_SPARSEMEM_ENABLE
 938         bool
 939
 940 config ARCH_SPARSEMEM_DEFAULT
 941         def_bool ARCH_SPARSEMEM_ENABLE
 942
 943 config ARCH_SELECT_MEMORY_MODEL
 944         def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
 945
 946 config NODES_SHIFT
 947         int
 948         default "4" if ARCH_LH7A40X
 949         default "2"
 950         depends on NEED_MULTIPLE_NODES
 951
 952 config HIGHMEM
 953         bool "High Memory Support (EXPERIMENTAL)"
 954         depends on MMU && EXPERIMENTAL
 955         help
 956           The address space of ARM processors is only 4 Gigabytes large
 957           and it has to accommodate user address space, kernel address
 958           space as well as some memory mapped IO. That means that, if you
 959           have a large amount of physical memory and/or IO, not all of the
 960           memory can be "permanently mapped" by the kernel. The physical
 961           memory that is not permanently mapped is called "high memory".
 962
 963           Depending on the selected kernel/user memory split, minimum
 964           vmalloc space and actual amount of RAM, you may not need this
 965           option which should result in a slightly faster kernel.
 966
 967           If unsure, say n.
 968
 969 source "mm/Kconfig"
 970
 971 config LEDS
 972         bool "Timer and CPU usage LEDs"
 973         depends on ARCH_CDB89712 || ARCH_EBSA110 || \
 974                    ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
 975                    ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
 976                    ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
 977                    ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
 978                    ARCH_AT91 || ARCH_DAVINCI || \
 979                    ARCH_KS8695 || MACH_RD88F5182
 980         help
 981           If you say Y here, the LEDs on your machine will be used
 982           to provide useful information about your current system status.
 983
 984           If you are compiling a kernel for a NetWinder or EBSA-285, you will
 985           be able to select which LEDs are active using the options below. If
 986           you are compiling a kernel for the EBSA-110 or the LART however, the
 987           red LED will simply flash regularly to indicate that the system is
 988           still functional. It is safe to say Y here if you have a CATS
 989           system, but the driver will do nothing.
 990
 991 config LEDS_TIMER
 992         bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
 993                             OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
 994                             || MACH_OMAP_PERSEUS2
 995         depends on LEDS
 996         depends on !GENERIC_CLOCKEVENTS
 997         default y if ARCH_EBSA110
 998         help
 999           If you say Y here, one of the system LEDs (the green one on the
1000           NetWinder, the amber one on the EBSA285, or the red one on the LART)
1001           will flash regularly to indicate that the system is still
1002           operational. This is mainly useful to kernel hackers who are
1003           debugging unstable kernels.
1004
1005           The LART uses the same LED for both Timer LED and CPU usage LED
1006           functions. You may choose to use both, but the Timer LED function
1007           will overrule the CPU usage LED.
1008
1009 config LEDS_CPU
1010         bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
1011                         !ARCH_OMAP) \
1012                         || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1013                         || MACH_OMAP_PERSEUS2
1014         depends on LEDS
1015         help
1016           If you say Y here, the red LED will be used to give a good real
1017           time indication of CPU usage, by lighting whenever the idle task
1018           is not currently executing.
1019
1020           The LART uses the same LED for both Timer LED and CPU usage LED
1021           functions. You may choose to use both, but the Timer LED function
1022           will overrule the CPU usage LED.
1023
1024 config ALIGNMENT_TRAP
1025         bool
1026         depends on CPU_CP15_MMU
1027         default y if !ARCH_EBSA110
1028         help
1029           ARM processors cannot fetch/store information which is not
1030           naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1031           address divisible by 4. On 32-bit ARM processors, these non-aligned
1032           fetch/store instructions will be emulated in software if you say
1033           here, which has a severe performance impact. This is necessary for
1034           correct operation of some network protocols. With an IP-only
1035           configuration it is safe to say N, otherwise say Y.
1036
1037 endmenu
1038
1039 menu "Boot options"
1040
1041 # Compressed boot loader in ROM.  Yes, we really want to ask about
1042 # TEXT and BSS so we preserve their values in the config files.
1043 config ZBOOT_ROM_TEXT
1044         hex "Compressed ROM boot loader base address"
1045         default "0"
1046         help
1047           The physical address at which the ROM-able zImage is to be
1048           placed in the target.  Platforms which normally make use of
1049           ROM-able zImage formats normally set this to a suitable
1050           value in their defconfig file.
1051
1052           If ZBOOT_ROM is not enabled, this has no effect.
1053
1054 config ZBOOT_ROM_BSS
1055         hex "Compressed ROM boot loader BSS address"
1056         default "0"
1057         help
1058           The base address of an area of read/write memory in the target
1059           for the ROM-able zImage which must be available while the
1060           decompressor is running. It must be large enough to hold the
1061           entire decompressed kernel plus an additional 128 KiB.
1062           Platforms which normally make use of ROM-able zImage formats
1063           normally set this to a suitable value in their defconfig file.
1064
1065           If ZBOOT_ROM is not enabled, this has no effect.
1066
1067 config ZBOOT_ROM
1068         bool "Compressed boot loader in ROM/flash"
1069         depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1070         help
1071           Say Y here if you intend to execute your compressed kernel image
1072           (zImage) directly from ROM or flash.  If unsure, say N.
1073
1074 config CMDLINE
1075         string "Default kernel command string"
1076         default ""
1077         help
1078           On some architectures (EBSA110 and CATS), there is currently no way
1079           for the boot loader to pass arguments to the kernel. For these
1080           architectures, you should supply some command-line options at build
1081           time by entering them here. As a minimum, you should specify the
1082           memory size and the root device (e.g., mem=64M root=/dev/nfs).
1083
1084 config XIP_KERNEL
1085         bool "Kernel Execute-In-Place from ROM"
1086         depends on !ZBOOT_ROM
1087         help
1088           Execute-In-Place allows the kernel to run from non-volatile storage
1089           directly addressable by the CPU, such as NOR flash. This saves RAM
1090           space since the text section of the kernel is not loaded from flash
1091           to RAM.  Read-write sections, such as the data section and stack,
1092           are still copied to RAM.  The XIP kernel is not compressed since
1093           it has to run directly from flash, so it will take more space to
1094           store it.  The flash address used to link the kernel object files,
1095           and for storing it, is configuration dependent. Therefore, if you
1096           say Y here, you must know the proper physical address where to
1097           store the kernel image depending on your own flash memory usage.
1098
1099           Also note that the make target becomes "make xipImage" rather than
1100           "make zImage" or "make Image".  The final kernel binary to put in
1101           ROM memory will be arch/arm/boot/xipImage.
1102
1103           If unsure, say N.
1104
1105 config XIP_PHYS_ADDR
1106         hex "XIP Kernel Physical Location"
1107         depends on XIP_KERNEL
1108         default "0x00080000"
1109         help
1110           This is the physical address in your flash memory the kernel will
1111           be linked for and stored to.  This address is dependent on your
1112           own flash usage.
1113
1114 config KEXEC
1115         bool "Kexec system call (EXPERIMENTAL)"
1116         depends on EXPERIMENTAL
1117         help
1118           kexec is a system call that implements the ability to shutdown your
1119           current kernel, and to start another kernel.  It is like a reboot
1120           but it is independent of the system firmware.   And like a reboot
1121           you can start any kernel with it, not just Linux.
1122
1123           It is an ongoing process to be certain the hardware in a machine
1124           is properly shutdown, so do not be surprised if this code does not
1125           initially work for you.  It may help to enable device hotplugging
1126           support.
1127
1128 config ATAGS_PROC
1129         bool "Export atags in procfs"
1130         depends on KEXEC
1131         default y
1132         help
1133           Should the atags used to boot the kernel be exported in an "atags"
1134           file in procfs. Useful with kexec.
1135
1136 endmenu
1137
1138 menu "CPU Power Management"
1139
1140 if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
1141
1142 source "drivers/cpufreq/Kconfig"
1143
1144 config CPU_FREQ_SA1100
1145         bool
1146         depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
1147         default y
1148
1149 config CPU_FREQ_SA1110
1150         bool
1151         depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
1152         default y
1153
1154 config CPU_FREQ_INTEGRATOR
1155         tristate "CPUfreq driver for ARM Integrator CPUs"
1156         depends on ARCH_INTEGRATOR && CPU_FREQ
1157         default y
1158         help
1159           This enables the CPUfreq driver for ARM Integrator CPUs.
1160
1161           For details, take a look at <file:Documentation/cpu-freq>.
1162
1163           If in doubt, say Y.
1164
1165 config CPU_FREQ_IMX
1166         tristate "CPUfreq driver for i.MX CPUs"
1167         depends on ARCH_IMX && CPU_FREQ
1168         default n
1169         help
1170           This enables the CPUfreq driver for i.MX CPUs.
1171
1172           If in doubt, say N.
1173
1174 config CPU_FREQ_PXA
1175         bool
1176         depends on CPU_FREQ && ARCH_PXA && PXA25x
1177         default y
1178         select CPU_FREQ_DEFAULT_GOV_USERSPACE
1179
1180 endif
1181
1182 source "drivers/cpuidle/Kconfig"
1183
1184 endmenu
1185
1186 menu "Floating point emulation"
1187
1188 comment "At least one emulation must be selected"
1189
1190 config FPE_NWFPE
1191         bool "NWFPE math emulation"
1192         depends on !AEABI || OABI_COMPAT
1193         ---help---
1194           Say Y to include the NWFPE floating point emulator in the kernel.
1195           This is necessary to run most binaries. Linux does not currently
1196           support floating point hardware so you need to say Y here even if
1197           your machine has an FPA or floating point co-processor podule.
1198
1199           You may say N here if you are going to load the Acorn FPEmulator
1200           early in the bootup.
1201
1202 config FPE_NWFPE_XP
1203         bool "Support extended precision"
1204         depends on FPE_NWFPE
1205         help
1206           Say Y to include 80-bit support in the kernel floating-point
1207           emulator.  Otherwise, only 32 and 64-bit support is compiled in.
1208           Note that gcc does not generate 80-bit operations by default,
1209           so in most cases this option only enlarges the size of the
1210           floating point emulator without any good reason.
1211
1212           You almost surely want to say N here.
1213
1214 config FPE_FASTFPE
1215         bool "FastFPE math emulation (EXPERIMENTAL)"
1216         depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
1217         ---help---
1218           Say Y here to include the FAST floating point emulator in the kernel.
1219           This is an experimental much faster emulator which now also has full
1220           precision for the mantissa.  It does not support any exceptions.
1221           It is very simple, and approximately 3-6 times faster than NWFPE.
1222
1223           It should be sufficient for most programs.  It may be not suitable
1224           for scientific calculations, but you have to check this for yourself.
1225           If you do not feel you need a faster FP emulation you should better
1226           choose NWFPE.
1227
1228 config VFP
1229         bool "VFP-format floating point maths"
1230         depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
1231         help
1232           Say Y to include VFP support code in the kernel. This is needed
1233           if your hardware includes a VFP unit.
1234
1235           Please see <file:Documentation/arm/VFP/release-notes.txt> for
1236           release notes and additional status information.
1237
1238           Say N if your target does not have VFP hardware.
1239
1240 config VFPv3
1241         bool
1242         depends on VFP
1243         default y if CPU_V7
1244
1245 config NEON
1246         bool "Advanced SIMD (NEON) Extension support"
1247         depends on VFPv3 && CPU_V7
1248         help
1249           Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1250           Extension.
1251
1252 endmenu
1253
1254 menu "Userspace binary formats"
1255
1256 source "fs/Kconfig.binfmt"
1257
1258 config ARTHUR
1259         tristate "RISC OS personality"
1260         depends on !AEABI
1261         help
1262           Say Y here to include the kernel code necessary if you want to run
1263           Acorn RISC OS/Arthur binaries under Linux. This code is still very
1264           experimental; if this sounds frightening, say N and sleep in peace.
1265           You can also say M here to compile this support as a module (which
1266           will be called arthur).
1267
1268 endmenu
1269
1270 menu "Power management options"
1271
1272 source "kernel/power/Kconfig"
1273
1274 config ARCH_SUSPEND_POSSIBLE
1275         def_bool y
1276
1277 endmenu
1278
1279 source "net/Kconfig"
1280
1281 menu "Device Drivers"
1282
1283 source "drivers/base/Kconfig"
1284
1285 source "drivers/connector/Kconfig"
1286
1287 if ALIGNMENT_TRAP || !CPU_CP15_MMU
1288 source "drivers/mtd/Kconfig"
1289 endif
1290
1291 source "drivers/parport/Kconfig"
1292
1293 source "drivers/pnp/Kconfig"
1294
1295 source "drivers/block/Kconfig"
1296
1297 # misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1298
1299 source "drivers/misc/Kconfig"
1300
1301 source "drivers/ide/Kconfig"
1302
1303 source "drivers/scsi/Kconfig"
1304
1305 source "drivers/ata/Kconfig"
1306
1307 source "drivers/md/Kconfig"
1308
1309 source "drivers/message/fusion/Kconfig"
1310
1311 source "drivers/ieee1394/Kconfig"
1312
1313 source "drivers/message/i2o/Kconfig"
1314
1315 source "drivers/net/Kconfig"
1316
1317 source "drivers/isdn/Kconfig"
1318
1319 # input before char - char/joystick depends on it. As does USB.
1320
1321 source "drivers/input/Kconfig"
1322
1323 source "drivers/char/Kconfig"
1324
1325 source "drivers/i2c/Kconfig"
1326
1327 source "drivers/spi/Kconfig"
1328
1329 source "drivers/gpio/Kconfig"
1330
1331 source "drivers/w1/Kconfig"
1332
1333 source "drivers/power/Kconfig"
1334
1335 source "drivers/hwmon/Kconfig"
1336
1337 source "drivers/thermal/Kconfig"
1338
1339 source "drivers/watchdog/Kconfig"
1340
1341 source "drivers/ssb/Kconfig"
1342
1343 #source "drivers/l3/Kconfig"
1344
1345 source "drivers/mfd/Kconfig"
1346
1347 source "drivers/media/Kconfig"
1348
1349 source "drivers/video/Kconfig"
1350
1351 source "sound/Kconfig"
1352
1353 source "drivers/hid/Kconfig"
1354
1355 source "drivers/usb/Kconfig"
1356
1357 source "drivers/uwb/Kconfig"
1358
1359 source "drivers/mmc/Kconfig"
1360
1361 source "drivers/memstick/Kconfig"
1362
1363 source "drivers/accessibility/Kconfig"
1364
1365 source "drivers/leds/Kconfig"
1366
1367 source "drivers/rtc/Kconfig"
1368
1369 source "drivers/dma/Kconfig"
1370
1371 source "drivers/dca/Kconfig"
1372
1373 source "drivers/auxdisplay/Kconfig"
1374
1375 source "drivers/regulator/Kconfig"
1376
1377 source "drivers/uio/Kconfig"
1378
1379 source "drivers/staging/Kconfig"
1380
1381 endmenu
1382
1383 source "fs/Kconfig"
1384
1385 source "arch/arm/Kconfig.debug"
1386
1387 source "security/Kconfig"
1388
1389 source "crypto/Kconfig"
1390
1391 source "lib/Kconfig"