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
  38 config GENERIC_TIME
  39         bool
  40
  41 config GENERIC_CLOCKEVENTS
  42         bool
  43
  44 config GENERIC_CLOCKEVENTS_BROADCAST
  45         bool
  46         depends on GENERIC_CLOCKEVENTS
  47         default y if SMP && !LOCAL_TIMERS
  48
  49 config MMU
  50         bool
  51         default y
  52
  53 config NO_IOPORT
  54         bool
  55
  56 config EISA
  57         bool
  58         ---help---
  59           The Extended Industry Standard Architecture (EISA) bus was
  60           developed as an open alternative to the IBM MicroChannel bus.
  61
  62           The EISA bus provided some of the features of the IBM MicroChannel
  63           bus while maintaining backward compatibility with cards made for
  64           the older ISA bus.  The EISA bus saw limited use between 1988 and
  65           1995 when it was made obsolete by the PCI bus.
  66
  67           Say Y here if you are building a kernel for an EISA-based machine.
  68
  69           Otherwise, say N.
  70
  71 config SBUS
  72         bool
  73
  74 config MCA
  75         bool
  76         help
  77           MicroChannel Architecture is found in some IBM PS/2 machines and
  78           laptops.  It is a bus system similar to PCI or ISA. See
  79           <file:Documentation/mca.txt> (and especially the web page given
  80           there) before attempting to build an MCA bus kernel.
  81
  82 config GENERIC_HARDIRQS
  83         bool
  84         default y
  85
  86 config STACKTRACE_SUPPORT
  87         bool
  88         default y
  89
  90 config HAVE_LATENCYTOP_SUPPORT
  91         bool
  92         depends on !SMP
  93         default y
  94
  95 config LOCKDEP_SUPPORT
  96         bool
  97         default y
  98
  99 config TRACE_IRQFLAGS_SUPPORT
 100         bool
 101         default y
 102
 103 config HARDIRQS_SW_RESEND
 104         bool
 105         default y
 106
 107 config GENERIC_IRQ_PROBE
 108         bool
 109         default y
 110
 111 config GENERIC_LOCKBREAK
 112         bool
 113         default y
 114         depends on SMP && PREEMPT
 115
 116 config RWSEM_GENERIC_SPINLOCK
 117         bool
 118         default y
 119
 120 config RWSEM_XCHGADD_ALGORITHM
 121         bool
 122
 123 config ARCH_HAS_ILOG2_U32
 124         bool
 125
 126 config ARCH_HAS_ILOG2_U64
 127         bool
 128
 129 config GENERIC_HWEIGHT
 130         bool
 131         default y
 132
 133 config GENERIC_CALIBRATE_DELAY
 134         bool
 135         default y
 136
 137 config ARCH_MAY_HAVE_PC_FDC
 138         bool
 139
 140 config ZONE_DMA
 141         bool
 142
 143 config GENERIC_ISA_DMA
 144         bool
 145
 146 config FIQ
 147         bool
 148
 149 config ARCH_MTD_XIP
 150         bool
 151
 152 config GENERIC_HARDIRQS_NO__DO_IRQ
 153         def_bool y
 154
 155 if OPROFILE
 156
 157 config OPROFILE_ARMV6
 158         def_bool y
 159         depends on CPU_V6 && !SMP
 160         select OPROFILE_ARM11_CORE
 161
 162 config OPROFILE_MPCORE
 163         def_bool y
 164         depends on CPU_V6 && SMP
 165         select OPROFILE_ARM11_CORE
 166
 167 config OPROFILE_ARM11_CORE
 168         bool
 169
 170 config OPROFILE_ARMV7
 171         def_bool y
 172         depends on CPU_V7 && !SMP
 173         bool
 174
 175 endif
 176
 177 config VECTORS_BASE
 178         hex
 179         default 0xffff0000 if MMU || CPU_HIGH_VECTOR
 180         default DRAM_BASE if REMAP_VECTORS_TO_RAM
 181         default 0x00000000
 182         help
 183           The base address of exception vectors.
 184
 185 source "init/Kconfig"
 186
 187 source "kernel/Kconfig.freezer"
 188
 189 menu "System Type"
 190
 191 choice
 192         prompt "ARM system type"
 193         default ARCH_VERSATILE
 194
 195 config ARCH_AAEC2000
 196         bool "Agilent AAEC-2000 based"
 197         select CPU_ARM920T
 198         select ARM_AMBA
 199         select HAVE_CLK
 200         help
 201           This enables support for systems based on the Agilent AAEC-2000
 202
 203 config ARCH_INTEGRATOR
 204         bool "ARM Ltd. Integrator family"
 205         select ARM_AMBA
 206         select HAVE_CLK
 207         select COMMON_CLKDEV
 208         select ICST525
 209         help
 210           Support for ARM's Integrator platform.
 211
 212 config ARCH_REALVIEW
 213         bool "ARM Ltd. RealView family"
 214         select ARM_AMBA
 215         select HAVE_CLK
 216         select COMMON_CLKDEV
 217         select ICST307
 218         select GENERIC_TIME
 219         select GENERIC_CLOCKEVENTS
 220         help
 221           This enables support for ARM Ltd RealView boards.
 222
 223 config ARCH_VERSATILE
 224         bool "ARM Ltd. Versatile family"
 225         select ARM_AMBA
 226         select ARM_VIC
 227         select HAVE_CLK
 228         select COMMON_CLKDEV
 229         select ICST307
 230         select GENERIC_TIME
 231         select GENERIC_CLOCKEVENTS
 232         help
 233           This enables support for ARM Ltd Versatile board.
 234
 235 config ARCH_AT91
 236         bool "Atmel AT91"
 237         select GENERIC_GPIO
 238         select ARCH_REQUIRE_GPIOLIB
 239         select HAVE_CLK
 240         help
 241           This enables support for systems based on the Atmel AT91RM9200,
 242           AT91SAM9 and AT91CAP9 processors.
 243
 244 config ARCH_CLPS711X
 245         bool "Cirrus Logic CLPS711x/EP721x-based"
 246         select CPU_ARM720T
 247         help
 248           Support for Cirrus Logic 711x/721x based boards.
 249
 250 config ARCH_GEMINI
 251         bool "Cortina Systems Gemini"
 252         select CPU_FA526
 253         select GENERIC_GPIO
 254         select ARCH_REQUIRE_GPIOLIB
 255         help
 256           Support for the Cortina Systems Gemini family SoCs
 257
 258 config ARCH_EBSA110
 259         bool "EBSA-110"
 260         select CPU_SA110
 261         select ISA
 262         select NO_IOPORT
 263         help
 264           This is an evaluation board for the StrongARM processor available
 265           from Digital. It has limited hardware on-board, including an
 266           Ethernet interface, two PCMCIA sockets, two serial ports and a
 267           parallel port.
 268
 269 config ARCH_EP93XX
 270         bool "EP93xx-based"
 271         select CPU_ARM920T
 272         select ARM_AMBA
 273         select ARM_VIC
 274         select GENERIC_GPIO
 275         select HAVE_CLK
 276         select COMMON_CLKDEV
 277         select ARCH_REQUIRE_GPIOLIB
 278         select ARCH_HAS_HOLES_MEMORYMODEL
 279         help
 280           This enables support for the Cirrus EP93xx series of CPUs.
 281
 282 config ARCH_FOOTBRIDGE
 283         bool "FootBridge"
 284         select CPU_SA110
 285         select FOOTBRIDGE
 286         help
 287           Support for systems based on the DC21285 companion chip
 288           ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
 289
 290 config ARCH_MXC
 291         bool "Freescale MXC/iMX-based"
 292         select GENERIC_TIME
 293         select GENERIC_CLOCKEVENTS
 294         select ARCH_MTD_XIP
 295         select GENERIC_GPIO
 296         select ARCH_REQUIRE_GPIOLIB
 297         select HAVE_CLK
 298         help
 299           Support for Freescale MXC/iMX-based family of processors
 300
 301 config ARCH_STMP3XXX
 302         bool "Freescale STMP3xxx"
 303         select CPU_ARM926T
 304         select HAVE_CLK
 305         select COMMON_CLKDEV
 306         select ARCH_REQUIRE_GPIOLIB
 307         select GENERIC_TIME
 308         select GENERIC_CLOCKEVENTS
 309         select GENERIC_GPIO
 310         select USB_ARCH_HAS_EHCI
 311         help
 312           Support for systems based on the Freescale 3xxx CPUs.
 313
 314 config ARCH_NETX
 315         bool "Hilscher NetX based"
 316         select CPU_ARM926T
 317         select ARM_VIC
 318         select GENERIC_CLOCKEVENTS
 319         select GENERIC_TIME
 320         help
 321           This enables support for systems based on the Hilscher NetX Soc
 322
 323 config ARCH_H720X
 324         bool "Hynix HMS720x-based"
 325         select CPU_ARM720T
 326         select ISA_DMA_API
 327         help
 328           This enables support for systems based on the Hynix HMS720x
 329
 330 config ARCH_NOMADIK
 331         bool "STMicroelectronics Nomadik"
 332         select ARM_AMBA
 333         select ARM_VIC
 334         select CPU_ARM926T
 335         select HAVE_CLK
 336         select COMMON_CLKDEV
 337         select GENERIC_TIME
 338         select GENERIC_CLOCKEVENTS
 339         select GENERIC_GPIO
 340         select ARCH_REQUIRE_GPIOLIB
 341         help
 342           Support for the Nomadik platform by ST-Ericsson
 343
 344 config ARCH_IOP13XX
 345         bool "IOP13xx-based"
 346         depends on MMU
 347         select CPU_XSC3
 348         select PLAT_IOP
 349         select PCI
 350         select ARCH_SUPPORTS_MSI
 351         select VMSPLIT_1G
 352         help
 353           Support for Intel's IOP13XX (XScale) family of processors.
 354
 355 config ARCH_IOP32X
 356         bool "IOP32x-based"
 357         depends on MMU
 358         select CPU_XSCALE
 359         select PLAT_IOP
 360         select PCI
 361         select GENERIC_GPIO
 362         select ARCH_REQUIRE_GPIOLIB
 363         help
 364           Support for Intel's 80219 and IOP32X (XScale) family of
 365           processors.
 366
 367 config ARCH_IOP33X
 368         bool "IOP33x-based"
 369         depends on MMU
 370         select CPU_XSCALE
 371         select PLAT_IOP
 372         select PCI
 373         select GENERIC_GPIO
 374         select ARCH_REQUIRE_GPIOLIB
 375         help
 376           Support for Intel's IOP33X (XScale) family of processors.
 377
 378 config ARCH_IXP23XX
 379         bool "IXP23XX-based"
 380         depends on MMU
 381         select CPU_XSC3
 382         select PCI
 383         help
 384           Support for Intel's IXP23xx (XScale) family of processors.
 385
 386 config ARCH_IXP2000
 387         bool "IXP2400/2800-based"
 388         depends on MMU
 389         select CPU_XSCALE
 390         select PCI
 391         help
 392           Support for Intel's IXP2400/2800 (XScale) family of processors.
 393
 394 config ARCH_IXP4XX
 395         bool "IXP4xx-based"
 396         depends on MMU
 397         select CPU_XSCALE
 398         select GENERIC_GPIO
 399         select GENERIC_TIME
 400         select GENERIC_CLOCKEVENTS
 401         select DMABOUNCE if PCI
 402         help
 403           Support for Intel's IXP4XX (XScale) family of processors.
 404
 405 config ARCH_L7200
 406         bool "LinkUp-L7200"
 407         select CPU_ARM720T
 408         select FIQ
 409         help
 410           Say Y here if you intend to run this kernel on a LinkUp Systems
 411           L7200 Software Development Board which uses an ARM720T processor.
 412           Information on this board can be obtained at:
 413
 414           <http://www.linkupsys.com/>
 415
 416           If you have any questions or comments about the Linux kernel port
 417           to this board, send e-mail to <sjhill@cotw.com>.
 418
 419 config ARCH_KIRKWOOD
 420         bool "Marvell Kirkwood"
 421         select CPU_FEROCEON
 422         select PCI
 423         select GENERIC_GPIO
 424         select ARCH_REQUIRE_GPIOLIB
 425         select GENERIC_TIME
 426         select GENERIC_CLOCKEVENTS
 427         select PLAT_ORION
 428         help
 429           Support for the following Marvell Kirkwood series SoCs:
 430           88F6180, 88F6192 and 88F6281.
 431
 432 config ARCH_LOKI
 433         bool "Marvell Loki (88RC8480)"
 434         select CPU_FEROCEON
 435         select GENERIC_TIME
 436         select GENERIC_CLOCKEVENTS
 437         select PLAT_ORION
 438         help
 439           Support for the Marvell Loki (88RC8480) SoC.
 440
 441 config ARCH_MV78XX0
 442         bool "Marvell MV78xx0"
 443         select CPU_FEROCEON
 444         select PCI
 445         select GENERIC_GPIO
 446         select ARCH_REQUIRE_GPIOLIB
 447         select GENERIC_TIME
 448         select GENERIC_CLOCKEVENTS
 449         select PLAT_ORION
 450         help
 451           Support for the following Marvell MV78xx0 series SoCs:
 452           MV781x0, MV782x0.
 453
 454 config ARCH_ORION5X
 455         bool "Marvell Orion"
 456         depends on MMU
 457         select CPU_FEROCEON
 458         select PCI
 459         select GENERIC_GPIO
 460         select ARCH_REQUIRE_GPIOLIB
 461         select GENERIC_TIME
 462         select GENERIC_CLOCKEVENTS
 463         select PLAT_ORION
 464         help
 465           Support for the following Marvell Orion 5x series SoCs:
 466           Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
 467           Orion-2 (5281), Orion-1-90 (6183).
 468
 469 config ARCH_MMP
 470         bool "Marvell PXA168/910"
 471         depends on MMU
 472         select GENERIC_GPIO
 473         select ARCH_REQUIRE_GPIOLIB
 474         select HAVE_CLK
 475         select COMMON_CLKDEV
 476         select GENERIC_TIME
 477         select GENERIC_CLOCKEVENTS
 478         select TICK_ONESHOT
 479         select PLAT_PXA
 480         help
 481           Support for Marvell's PXA168/910 processor line.
 482
 483 config ARCH_KS8695
 484         bool "Micrel/Kendin KS8695"
 485         select CPU_ARM922T
 486         select GENERIC_GPIO
 487         select ARCH_REQUIRE_GPIOLIB
 488         help
 489           Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
 490           System-on-Chip devices.
 491
 492 config ARCH_NS9XXX
 493         bool "NetSilicon NS9xxx"
 494         select CPU_ARM926T
 495         select GENERIC_GPIO
 496         select GENERIC_TIME
 497         select GENERIC_CLOCKEVENTS
 498         select HAVE_CLK
 499         help
 500           Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
 501           System.
 502
 503           <http://www.digi.com/products/microprocessors/index.jsp>
 504
 505 config ARCH_W90X900
 506         bool "Nuvoton W90X900 CPU"
 507         select CPU_ARM926T
 508         select ARCH_REQUIRE_GPIOLIB
 509         select GENERIC_GPIO
 510         select COMMON_CLKDEV
 511         help
 512                 Support for Nuvoton (Winbond logic dept.) ARM9 processor,You
 513                 can login www.mcuos.com or www.nuvoton.com to know more.
 514
 515 config ARCH_PNX4008
 516         bool "Philips Nexperia PNX4008 Mobile"
 517         select CPU_ARM926T
 518         select HAVE_CLK
 519         help
 520           This enables support for Philips PNX4008 mobile platform.
 521
 522 config ARCH_PXA
 523         bool "PXA2xx/PXA3xx-based"
 524         depends on MMU
 525         select ARCH_MTD_XIP
 526         select GENERIC_GPIO
 527         select HAVE_CLK
 528         select COMMON_CLKDEV
 529         select ARCH_REQUIRE_GPIOLIB
 530         select GENERIC_TIME
 531         select GENERIC_CLOCKEVENTS
 532         select TICK_ONESHOT
 533         select PLAT_PXA
 534         help
 535           Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
 536
 537 config ARCH_MSM
 538         bool "Qualcomm MSM"
 539         select CPU_V6
 540         select GENERIC_TIME
 541         select GENERIC_CLOCKEVENTS
 542         help
 543           Support for Qualcomm MSM7K based systems.  This runs on the ARM11
 544           apps processor of the MSM7K and depends on a shared memory
 545           interface to the ARM9 modem processor which runs the baseband stack
 546           and controls some vital subsystems (clock and power control, etc).
 547
 548 config ARCH_RPC
 549         bool "RiscPC"
 550         select ARCH_ACORN
 551         select FIQ
 552         select TIMER_ACORN
 553         select ARCH_MAY_HAVE_PC_FDC
 554         select HAVE_PATA_PLATFORM
 555         select ISA_DMA_API
 556         select NO_IOPORT
 557         select ARCH_SPARSEMEM_ENABLE
 558         help
 559           On the Acorn Risc-PC, Linux can support the internal IDE disk and
 560           CD-ROM interface, serial and parallel port, and the floppy drive.
 561
 562 config ARCH_SA1100
 563         bool "SA1100-based"
 564         select CPU_SA1100
 565         select ISA
 566         select ARCH_SPARSEMEM_ENABLE
 567         select ARCH_MTD_XIP
 568         select GENERIC_GPIO
 569         select GENERIC_TIME
 570         select GENERIC_CLOCKEVENTS
 571         select HAVE_CLK
 572         select TICK_ONESHOT
 573         select ARCH_REQUIRE_GPIOLIB
 574         help
 575           Support for StrongARM 11x0 based boards.
 576
 577 config ARCH_S3C2410
 578         bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
 579         select GENERIC_GPIO
 580         select HAVE_CLK
 581         help
 582           Samsung S3C2410X CPU based systems, such as the Simtec Electronics
 583           BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
 584           the Samsung SMDK2410 development board (and derivatives).
 585
 586 config ARCH_S3C64XX
 587         bool "Samsung S3C64XX"
 588         select GENERIC_GPIO
 589         select HAVE_CLK
 590         help
 591           Samsung S3C64XX series based systems
 592
 593 config ARCH_SHARK
 594         bool "Shark"
 595         select CPU_SA110
 596         select ISA
 597         select ISA_DMA
 598         select ZONE_DMA
 599         select PCI
 600         help
 601           Support for the StrongARM based Digital DNARD machine, also known
 602           as "Shark" (<http://www.shark-linux.de/shark.html>).
 603
 604 config ARCH_LH7A40X
 605         bool "Sharp LH7A40X"
 606         select CPU_ARM922T
 607         select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
 608         select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
 609         help
 610           Say Y here for systems based on one of the Sharp LH7A40X
 611           System on a Chip processors.  These CPUs include an ARM922T
 612           core with a wide array of integrated devices for
 613           hand-held and low-power applications.
 614
 615 config ARCH_U300
 616         bool "ST-Ericsson U300 Series"
 617         depends on MMU
 618         select CPU_ARM926T
 619         select ARM_AMBA
 620         select ARM_VIC
 621         select GENERIC_TIME
 622         select GENERIC_CLOCKEVENTS
 623         select HAVE_CLK
 624         select COMMON_CLKDEV
 625         select GENERIC_GPIO
 626         help
 627           Support for ST-Ericsson U300 series mobile platforms.
 628
 629 config ARCH_DAVINCI
 630         bool "TI DaVinci"
 631         select CPU_ARM926T
 632         select GENERIC_TIME
 633         select GENERIC_CLOCKEVENTS
 634         select GENERIC_GPIO
 635         select ARCH_REQUIRE_GPIOLIB
 636         select HAVE_CLK
 637         select ZONE_DMA
 638         select HAVE_IDE
 639         select COMMON_CLKDEV
 640         select GENERIC_ALLOCATOR
 641         help
 642           Support for TI's DaVinci platform.
 643
 644 config ARCH_OMAP
 645         bool "TI OMAP"
 646         select GENERIC_GPIO
 647         select HAVE_CLK
 648         select ARCH_REQUIRE_GPIOLIB
 649         select GENERIC_TIME
 650         select GENERIC_CLOCKEVENTS
 651         help
 652           Support for TI's OMAP platform (OMAP1 and OMAP2).
 653
 654 endchoice
 655
 656 source "arch/arm/mach-clps711x/Kconfig"
 657
 658 source "arch/arm/mach-ep93xx/Kconfig"
 659
 660 source "arch/arm/mach-footbridge/Kconfig"
 661
 662 source "arch/arm/mach-gemini/Kconfig"
 663
 664 source "arch/arm/mach-integrator/Kconfig"
 665
 666 source "arch/arm/mach-iop32x/Kconfig"
 667
 668 source "arch/arm/mach-iop33x/Kconfig"
 669
 670 source "arch/arm/mach-iop13xx/Kconfig"
 671
 672 source "arch/arm/mach-ixp4xx/Kconfig"
 673
 674 source "arch/arm/mach-ixp2000/Kconfig"
 675
 676 source "arch/arm/mach-ixp23xx/Kconfig"
 677
 678 source "arch/arm/mach-loki/Kconfig"
 679
 680 source "arch/arm/mach-mv78xx0/Kconfig"
 681
 682 source "arch/arm/mach-pxa/Kconfig"
 683 source "arch/arm/plat-pxa/Kconfig"
 684
 685 source "arch/arm/mach-mmp/Kconfig"
 686
 687 source "arch/arm/mach-sa1100/Kconfig"
 688
 689 source "arch/arm/plat-omap/Kconfig"
 690
 691 source "arch/arm/mach-omap1/Kconfig"
 692
 693 source "arch/arm/mach-omap2/Kconfig"
 694
 695 source "arch/arm/mach-orion5x/Kconfig"
 696
 697 source "arch/arm/mach-kirkwood/Kconfig"
 698
 699 source "arch/arm/plat-s3c24xx/Kconfig"
 700 source "arch/arm/plat-s3c64xx/Kconfig"
 701 source "arch/arm/plat-s3c/Kconfig"
 702
 703 if ARCH_S3C2410
 704 source "arch/arm/mach-s3c2400/Kconfig"
 705 source "arch/arm/mach-s3c2410/Kconfig"
 706 source "arch/arm/mach-s3c2412/Kconfig"
 707 source "arch/arm/mach-s3c2440/Kconfig"
 708 source "arch/arm/mach-s3c2442/Kconfig"
 709 source "arch/arm/mach-s3c2443/Kconfig"
 710 endif
 711
 712 if ARCH_S3C64XX
 713 source "arch/arm/mach-s3c6400/Kconfig"
 714 source "arch/arm/mach-s3c6410/Kconfig"
 715 endif
 716
 717 source "arch/arm/plat-stmp3xxx/Kconfig"
 718
 719 source "arch/arm/mach-lh7a40x/Kconfig"
 720
 721 source "arch/arm/mach-h720x/Kconfig"
 722
 723 source "arch/arm/mach-versatile/Kconfig"
 724
 725 source "arch/arm/mach-aaec2000/Kconfig"
 726
 727 source "arch/arm/mach-realview/Kconfig"
 728
 729 source "arch/arm/mach-at91/Kconfig"
 730
 731 source "arch/arm/plat-mxc/Kconfig"
 732
 733 source "arch/arm/mach-nomadik/Kconfig"
 734
 735 source "arch/arm/mach-netx/Kconfig"
 736
 737 source "arch/arm/mach-ns9xxx/Kconfig"
 738
 739 source "arch/arm/mach-davinci/Kconfig"
 740
 741 source "arch/arm/mach-ks8695/Kconfig"
 742
 743 source "arch/arm/mach-msm/Kconfig"
 744
 745 source "arch/arm/mach-u300/Kconfig"
 746
 747 source "arch/arm/mach-w90x900/Kconfig"
 748
 749 # Definitions to make life easier
 750 config ARCH_ACORN
 751         bool
 752
 753 config PLAT_IOP
 754         bool
 755
 756 config PLAT_ORION
 757         bool
 758
 759 config PLAT_PXA
 760         bool
 761
 762 source arch/arm/mm/Kconfig
 763
 764 config IWMMXT
 765         bool "Enable iWMMXt support"
 766         depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
 767         default y if PXA27x || PXA3xx || ARCH_MMP
 768         help
 769           Enable support for iWMMXt context switching at run time if
 770           running on a CPU that supports it.
 771
 772 #  bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
 773 config XSCALE_PMU
 774         bool
 775         depends on CPU_XSCALE && !XSCALE_PMU_TIMER
 776         default y
 777
 778 if !MMU
 779 source "arch/arm/Kconfig-nommu"
 780 endif
 781
 782 config ARM_ERRATA_411920
 783         bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
 784         depends on CPU_V6 && !SMP
 785         help
 786           Invalidation of the Instruction Cache operation can
 787           fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
 788           It does not affect the MPCore. This option enables the ARM Ltd.
 789           recommended workaround.
 790
 791 config ARM_ERRATA_430973
 792         bool "ARM errata: Stale prediction on replaced interworking branch"
 793         depends on CPU_V7
 794         help
 795           This option enables the workaround for the 430973 Cortex-A8
 796           (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
 797           interworking branch is replaced with another code sequence at the
 798           same virtual address, whether due to self-modifying code or virtual
 799           to physical address re-mapping, Cortex-A8 does not recover from the
 800           stale interworking branch prediction. This results in Cortex-A8
 801           executing the new code sequence in the incorrect ARM or Thumb state.
 802           The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
 803           and also flushes the branch target cache at every context switch.
 804           Note that setting specific bits in the ACTLR register may not be
 805           available in non-secure mode.
 806
 807 config ARM_ERRATA_458693
 808         bool "ARM errata: Processor deadlock when a false hazard is created"
 809         depends on CPU_V7
 810         help
 811           This option enables the workaround for the 458693 Cortex-A8 (r2p0)
 812           erratum. For very specific sequences of memory operations, it is
 813           possible for a hazard condition intended for a cache line to instead
 814           be incorrectly associated with a different cache line. This false
 815           hazard might then cause a processor deadlock. The workaround enables
 816           the L1 caching of the NEON accesses and disables the PLD instruction
 817           in the ACTLR register. Note that setting specific bits in the ACTLR
 818           register may not be available in non-secure mode.
 819
 820 config ARM_ERRATA_460075
 821         bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
 822         depends on CPU_V7
 823         help
 824           This option enables the workaround for the 460075 Cortex-A8 (r2p0)
 825           erratum. Any asynchronous access to the L2 cache may encounter a
 826           situation in which recent store transactions to the L2 cache are lost
 827           and overwritten with stale memory contents from external memory. The
 828           workaround disables the write-allocate mode for the L2 cache via the
 829           ACTLR register. Note that setting specific bits in the ACTLR register
 830           may not be available in non-secure mode.
 831
 832 endmenu
 833
 834 source "arch/arm/common/Kconfig"
 835
 836 config FORCE_MAX_ZONEORDER
 837         int
 838         depends on SA1111
 839         default "9"
 840
 841 menu "Bus support"
 842
 843 config ARM_AMBA
 844         bool
 845
 846 config ISA
 847         bool
 848         help
 849           Find out whether you have ISA slots on your motherboard.  ISA is the
 850           name of a bus system, i.e. the way the CPU talks to the other stuff
 851           inside your box.  Other bus systems are PCI, EISA, MicroChannel
 852           (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
 853           newer boards don't support it.  If you have ISA, say Y, otherwise N.
 854
 855 # Select ISA DMA controller support
 856 config ISA_DMA
 857         bool
 858         select ISA_DMA_API
 859
 860 # Select ISA DMA interface
 861 config ISA_DMA_API
 862         bool
 863
 864 config PCI
 865         bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
 866         help
 867           Find out whether you have a PCI motherboard. PCI is the name of a
 868           bus system, i.e. the way the CPU talks to the other stuff inside
 869           your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
 870           VESA. If you have PCI, say Y, otherwise N.
 871
 872 config PCI_SYSCALL
 873         def_bool PCI
 874
 875 # Select the host bridge type
 876 config PCI_HOST_VIA82C505
 877         bool
 878         depends on PCI && ARCH_SHARK
 879         default y
 880
 881 config PCI_HOST_ITE8152
 882         bool
 883         depends on PCI && MACH_ARMCORE
 884         default y
 885         select DMABOUNCE
 886
 887 source "drivers/pci/Kconfig"
 888
 889 source "drivers/pcmcia/Kconfig"
 890
 891 endmenu
 892
 893 menu "Kernel Features"
 894
 895 source "kernel/time/Kconfig"
 896
 897 config SMP
 898         bool "Symmetric Multi-Processing (EXPERIMENTAL)"
 899         depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
 900                  MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4)
 901         depends on GENERIC_CLOCKEVENTS
 902         select USE_GENERIC_SMP_HELPERS
 903         select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4)
 904         help
 905           This enables support for systems with more than one CPU. If you have
 906           a system with only one CPU, like most personal computers, say N. If
 907           you have a system with more than one CPU, say Y.
 908
 909           If you say N here, the kernel will run on single and multiprocessor
 910           machines, but will use only one CPU of a multiprocessor machine. If
 911           you say Y here, the kernel will run on many, but not all, single
 912           processor machines. On a single processor machine, the kernel will
 913           run faster if you say N here.
 914
 915           See also <file:Documentation/i386/IO-APIC.txt>,
 916           <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
 917           <http://www.linuxdoc.org/docs.html#howto>.
 918
 919           If you don't know what to do here, say N.
 920
 921 config HAVE_ARM_SCU
 922         bool
 923         depends on SMP
 924         help
 925           This option enables support for the ARM system coherency unit
 926
 927 config HAVE_ARM_TWD
 928         bool
 929         depends on SMP
 930         help
 931           This options enables support for the ARM timer and watchdog unit
 932
 933 choice
 934         prompt "Memory split"
 935         default VMSPLIT_3G
 936         help
 937           Select the desired split between kernel and user memory.
 938
 939           If you are not absolutely sure what you are doing, leave this
 940           option alone!
 941
 942         config VMSPLIT_3G
 943                 bool "3G/1G user/kernel split"
 944         config VMSPLIT_2G
 945                 bool "2G/2G user/kernel split"
 946         config VMSPLIT_1G
 947                 bool "1G/3G user/kernel split"
 948 endchoice
 949
 950 config PAGE_OFFSET
 951         hex
 952         default 0x40000000 if VMSPLIT_1G
 953         default 0x80000000 if VMSPLIT_2G
 954         default 0xC0000000
 955
 956 config NR_CPUS
 957         int "Maximum number of CPUs (2-32)"
 958         range 2 32
 959         depends on SMP
 960         default "4"
 961
 962 config HOTPLUG_CPU
 963         bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
 964         depends on SMP && HOTPLUG && EXPERIMENTAL
 965         help
 966           Say Y here to experiment with turning CPUs off and on.  CPUs
 967           can be controlled through /sys/devices/system/cpu.
 968
 969 config LOCAL_TIMERS
 970         bool "Use local timer interrupts"
 971         depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
 972                 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4)
 973         default y
 974         select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4)
 975         help
 976           Enable support for local timers on SMP platforms, rather then the
 977           legacy IPI broadcast method.  Local timers allows the system
 978           accounting to be spread across the timer interval, preventing a
 979           "thundering herd" at every timer tick.
 980
 981 config PREEMPT
 982         bool "Preemptible Kernel (EXPERIMENTAL)"
 983         depends on EXPERIMENTAL
 984         help
 985           This option reduces the latency of the kernel when reacting to
 986           real-time or interactive events by allowing a low priority process to
 987           be preempted even if it is in kernel mode executing a system call.
 988           This allows applications to run more reliably even when the system is
 989           under load.
 990
 991           Say Y here if you are building a kernel for a desktop, embedded
 992           or real-time system.  Say N if you are unsure.
 993
 994 config HZ
 995         int
 996         default 128 if ARCH_L7200
 997         default 200 if ARCH_EBSA110 || ARCH_S3C2410
 998         default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
 999         default AT91_TIMER_HZ if ARCH_AT91
1000         default 100
1001
1002 config AEABI
1003         bool "Use the ARM EABI to compile the kernel"
1004         help
1005           This option allows for the kernel to be compiled using the latest
1006           ARM ABI (aka EABI).  This is only useful if you are using a user
1007           space environment that is also compiled with EABI.
1008
1009           Since there are major incompatibilities between the legacy ABI and
1010           EABI, especially with regard to structure member alignment, this
1011           option also changes the kernel syscall calling convention to
1012           disambiguate both ABIs and allow for backward compatibility support
1013           (selected with CONFIG_OABI_COMPAT).
1014
1015           To use this you need GCC version 4.0.0 or later.
1016
1017 config OABI_COMPAT
1018         bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
1019         depends on AEABI && EXPERIMENTAL
1020         default y
1021         help
1022           This option preserves the old syscall interface along with the
1023           new (ARM EABI) one. It also provides a compatibility layer to
1024           intercept syscalls that have structure arguments which layout
1025           in memory differs between the legacy ABI and the new ARM EABI
1026           (only for non "thumb" binaries). This option adds a tiny
1027           overhead to all syscalls and produces a slightly larger kernel.
1028           If you know you'll be using only pure EABI user space then you
1029           can say N here. If this option is not selected and you attempt
1030           to execute a legacy ABI binary then the result will be
1031           UNPREDICTABLE (in fact it can be predicted that it won't work
1032           at all). If in doubt say Y.
1033
1034 config ARCH_HAS_HOLES_MEMORYMODEL
1035         bool
1036
1037 # Discontigmem is deprecated
1038 config ARCH_DISCONTIGMEM_ENABLE
1039         bool
1040
1041 config ARCH_SPARSEMEM_ENABLE
1042         bool
1043
1044 config ARCH_SPARSEMEM_DEFAULT
1045         def_bool ARCH_SPARSEMEM_ENABLE
1046
1047 config ARCH_SELECT_MEMORY_MODEL
1048         def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
1049
1050 config NODES_SHIFT
1051         int
1052         default "4" if ARCH_LH7A40X
1053         default "2"
1054         depends on NEED_MULTIPLE_NODES
1055
1056 config HIGHMEM
1057         bool "High Memory Support (EXPERIMENTAL)"
1058         depends on MMU && EXPERIMENTAL
1059         help
1060           The address space of ARM processors is only 4 Gigabytes large
1061           and it has to accommodate user address space, kernel address
1062           space as well as some memory mapped IO. That means that, if you
1063           have a large amount of physical memory and/or IO, not all of the
1064           memory can be "permanently mapped" by the kernel. The physical
1065           memory that is not permanently mapped is called "high memory".
1066
1067           Depending on the selected kernel/user memory split, minimum
1068           vmalloc space and actual amount of RAM, you may not need this
1069           option which should result in a slightly faster kernel.
1070
1071           If unsure, say n.
1072
1073 source "mm/Kconfig"
1074
1075 config LEDS
1076         bool "Timer and CPU usage LEDs"
1077         depends on ARCH_CDB89712 || ARCH_EBSA110 || \
1078                    ARCH_EBSA285 || ARCH_INTEGRATOR || \
1079                    ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1080                    ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
1081                    ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
1082                    ARCH_AT91 || ARCH_DAVINCI || \
1083                    ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
1084         help
1085           If you say Y here, the LEDs on your machine will be used
1086           to provide useful information about your current system status.
1087
1088           If you are compiling a kernel for a NetWinder or EBSA-285, you will
1089           be able to select which LEDs are active using the options below. If
1090           you are compiling a kernel for the EBSA-110 or the LART however, the
1091           red LED will simply flash regularly to indicate that the system is
1092           still functional. It is safe to say Y here if you have a CATS
1093           system, but the driver will do nothing.
1094
1095 config LEDS_TIMER
1096         bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
1097                             OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1098                             || MACH_OMAP_PERSEUS2
1099         depends on LEDS
1100         depends on !GENERIC_CLOCKEVENTS
1101         default y if ARCH_EBSA110
1102         help
1103           If you say Y here, one of the system LEDs (the green one on the
1104           NetWinder, the amber one on the EBSA285, or the red one on the LART)
1105           will flash regularly to indicate that the system is still
1106           operational. This is mainly useful to kernel hackers who are
1107           debugging unstable kernels.
1108
1109           The LART uses the same LED for both Timer LED and CPU usage LED
1110           functions. You may choose to use both, but the Timer LED function
1111           will overrule the CPU usage LED.
1112
1113 config LEDS_CPU
1114         bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
1115                         !ARCH_OMAP) \
1116                         || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1117                         || MACH_OMAP_PERSEUS2
1118         depends on LEDS
1119         help
1120           If you say Y here, the red LED will be used to give a good real
1121           time indication of CPU usage, by lighting whenever the idle task
1122           is not currently executing.
1123
1124           The LART uses the same LED for both Timer LED and CPU usage LED
1125           functions. You may choose to use both, but the Timer LED function
1126           will overrule the CPU usage LED.
1127
1128 config ALIGNMENT_TRAP
1129         bool
1130         depends on CPU_CP15_MMU
1131         default y if !ARCH_EBSA110
1132         help
1133           ARM processors cannot fetch/store information which is not
1134           naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1135           address divisible by 4. On 32-bit ARM processors, these non-aligned
1136           fetch/store instructions will be emulated in software if you say
1137           here, which has a severe performance impact. This is necessary for
1138           correct operation of some network protocols. With an IP-only
1139           configuration it is safe to say N, otherwise say Y.
1140
1141 config UACCESS_WITH_MEMCPY
1142         bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1143         depends on MMU && EXPERIMENTAL
1144         default y if CPU_FEROCEON
1145         help
1146           Implement faster copy_to_user and clear_user methods for CPU
1147           cores where a 8-word STM instruction give significantly higher
1148           memory write throughput than a sequence of individual 32bit stores.
1149
1150           A possible side effect is a slight increase in scheduling latency
1151           between threads sharing the same address space if they invoke
1152           such copy operations with large buffers.
1153
1154           However, if the CPU data cache is using a write-allocate mode,
1155           this option is unlikely to provide any performance gain.
1156
1157 endmenu
1158
1159 menu "Boot options"
1160
1161 # Compressed boot loader in ROM.  Yes, we really want to ask about
1162 # TEXT and BSS so we preserve their values in the config files.
1163 config ZBOOT_ROM_TEXT
1164         hex "Compressed ROM boot loader base address"
1165         default "0"
1166         help
1167           The physical address at which the ROM-able zImage is to be
1168           placed in the target.  Platforms which normally make use of
1169           ROM-able zImage formats normally set this to a suitable
1170           value in their defconfig file.
1171
1172           If ZBOOT_ROM is not enabled, this has no effect.
1173
1174 config ZBOOT_ROM_BSS
1175         hex "Compressed ROM boot loader BSS address"
1176         default "0"
1177         help
1178           The base address of an area of read/write memory in the target
1179           for the ROM-able zImage which must be available while the
1180           decompressor is running. It must be large enough to hold the
1181           entire decompressed kernel plus an additional 128 KiB.
1182           Platforms which normally make use of ROM-able zImage formats
1183           normally set this to a suitable value in their defconfig file.
1184
1185           If ZBOOT_ROM is not enabled, this has no effect.
1186
1187 config ZBOOT_ROM
1188         bool "Compressed boot loader in ROM/flash"
1189         depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1190         help
1191           Say Y here if you intend to execute your compressed kernel image
1192           (zImage) directly from ROM or flash.  If unsure, say N.
1193
1194 config CMDLINE
1195         string "Default kernel command string"
1196         default ""
1197         help
1198           On some architectures (EBSA110 and CATS), there is currently no way
1199           for the boot loader to pass arguments to the kernel. For these
1200           architectures, you should supply some command-line options at build
1201           time by entering them here. As a minimum, you should specify the
1202           memory size and the root device (e.g., mem=64M root=/dev/nfs).
1203
1204 config XIP_KERNEL
1205         bool "Kernel Execute-In-Place from ROM"
1206         depends on !ZBOOT_ROM
1207         help
1208           Execute-In-Place allows the kernel to run from non-volatile storage
1209           directly addressable by the CPU, such as NOR flash. This saves RAM
1210           space since the text section of the kernel is not loaded from flash
1211           to RAM.  Read-write sections, such as the data section and stack,
1212           are still copied to RAM.  The XIP kernel is not compressed since
1213           it has to run directly from flash, so it will take more space to
1214           store it.  The flash address used to link the kernel object files,
1215           and for storing it, is configuration dependent. Therefore, if you
1216           say Y here, you must know the proper physical address where to
1217           store the kernel image depending on your own flash memory usage.
1218
1219           Also note that the make target becomes "make xipImage" rather than
1220           "make zImage" or "make Image".  The final kernel binary to put in
1221           ROM memory will be arch/arm/boot/xipImage.
1222
1223           If unsure, say N.
1224
1225 config XIP_PHYS_ADDR
1226         hex "XIP Kernel Physical Location"
1227         depends on XIP_KERNEL
1228         default "0x00080000"
1229         help
1230           This is the physical address in your flash memory the kernel will
1231           be linked for and stored to.  This address is dependent on your
1232           own flash usage.
1233
1234 config KEXEC
1235         bool "Kexec system call (EXPERIMENTAL)"
1236         depends on EXPERIMENTAL
1237         help
1238           kexec is a system call that implements the ability to shutdown your
1239           current kernel, and to start another kernel.  It is like a reboot
1240           but it is independent of the system firmware.   And like a reboot
1241           you can start any kernel with it, not just Linux.
1242
1243           It is an ongoing process to be certain the hardware in a machine
1244           is properly shutdown, so do not be surprised if this code does not
1245           initially work for you.  It may help to enable device hotplugging
1246           support.
1247
1248 config ATAGS_PROC
1249         bool "Export atags in procfs"
1250         depends on KEXEC
1251         default y
1252         help
1253           Should the atags used to boot the kernel be exported in an "atags"
1254           file in procfs. Useful with kexec.
1255
1256 endmenu
1257
1258 menu "CPU Power Management"
1259
1260 if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_PXA || ARCH_S3C64XX)
1261
1262 source "drivers/cpufreq/Kconfig"
1263
1264 config CPU_FREQ_SA1100
1265         bool
1266         depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
1267         default y
1268
1269 config CPU_FREQ_SA1110
1270         bool
1271         depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
1272         default y
1273
1274 config CPU_FREQ_INTEGRATOR
1275         tristate "CPUfreq driver for ARM Integrator CPUs"
1276         depends on ARCH_INTEGRATOR && CPU_FREQ
1277         default y
1278         help
1279           This enables the CPUfreq driver for ARM Integrator CPUs.
1280
1281           For details, take a look at <file:Documentation/cpu-freq>.
1282
1283           If in doubt, say Y.
1284
1285 config CPU_FREQ_PXA
1286         bool
1287         depends on CPU_FREQ && ARCH_PXA && PXA25x
1288         default y
1289         select CPU_FREQ_DEFAULT_GOV_USERSPACE
1290
1291 config CPU_FREQ_S3C64XX
1292         bool "CPUfreq support for Samsung S3C64XX CPUs"
1293         depends on CPU_FREQ && CPU_S3C6410
1294
1295 endif
1296
1297 source "drivers/cpuidle/Kconfig"
1298
1299 endmenu
1300
1301 menu "Floating point emulation"
1302
1303 comment "At least one emulation must be selected"
1304
1305 config FPE_NWFPE
1306         bool "NWFPE math emulation"
1307         depends on !AEABI || OABI_COMPAT
1308         ---help---
1309           Say Y to include the NWFPE floating point emulator in the kernel.
1310           This is necessary to run most binaries. Linux does not currently
1311           support floating point hardware so you need to say Y here even if
1312           your machine has an FPA or floating point co-processor podule.
1313
1314           You may say N here if you are going to load the Acorn FPEmulator
1315           early in the bootup.
1316
1317 config FPE_NWFPE_XP
1318         bool "Support extended precision"
1319         depends on FPE_NWFPE
1320         help
1321           Say Y to include 80-bit support in the kernel floating-point
1322           emulator.  Otherwise, only 32 and 64-bit support is compiled in.
1323           Note that gcc does not generate 80-bit operations by default,
1324           so in most cases this option only enlarges the size of the
1325           floating point emulator without any good reason.
1326
1327           You almost surely want to say N here.
1328
1329 config FPE_FASTFPE
1330         bool "FastFPE math emulation (EXPERIMENTAL)"
1331         depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
1332         ---help---
1333           Say Y here to include the FAST floating point emulator in the kernel.
1334           This is an experimental much faster emulator which now also has full
1335           precision for the mantissa.  It does not support any exceptions.
1336           It is very simple, and approximately 3-6 times faster than NWFPE.
1337
1338           It should be sufficient for most programs.  It may be not suitable
1339           for scientific calculations, but you have to check this for yourself.
1340           If you do not feel you need a faster FP emulation you should better
1341           choose NWFPE.
1342
1343 config VFP
1344         bool "VFP-format floating point maths"
1345         depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
1346         help
1347           Say Y to include VFP support code in the kernel. This is needed
1348           if your hardware includes a VFP unit.
1349
1350           Please see <file:Documentation/arm/VFP/release-notes.txt> for
1351           release notes and additional status information.
1352
1353           Say N if your target does not have VFP hardware.
1354
1355 config VFPv3
1356         bool
1357         depends on VFP
1358         default y if CPU_V7
1359
1360 config NEON
1361         bool "Advanced SIMD (NEON) Extension support"
1362         depends on VFPv3 && CPU_V7
1363         help
1364           Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1365           Extension.
1366
1367 endmenu
1368
1369 menu "Userspace binary formats"
1370
1371 source "fs/Kconfig.binfmt"
1372
1373 config ARTHUR
1374         tristate "RISC OS personality"
1375         depends on !AEABI
1376         help
1377           Say Y here to include the kernel code necessary if you want to run
1378           Acorn RISC OS/Arthur binaries under Linux. This code is still very
1379           experimental; if this sounds frightening, say N and sleep in peace.
1380           You can also say M here to compile this support as a module (which
1381           will be called arthur).
1382
1383 endmenu
1384
1385 menu "Power management options"
1386
1387 source "kernel/power/Kconfig"
1388
1389 config ARCH_SUSPEND_POSSIBLE
1390         def_bool y
1391
1392 endmenu
1393
1394 source "net/Kconfig"
1395
1396 menu "Device Drivers"
1397
1398 source "drivers/base/Kconfig"
1399
1400 source "drivers/connector/Kconfig"
1401
1402 if ALIGNMENT_TRAP || !CPU_CP15_MMU
1403 source "drivers/mtd/Kconfig"
1404 endif
1405
1406 source "drivers/parport/Kconfig"
1407
1408 source "drivers/pnp/Kconfig"
1409
1410 source "drivers/block/Kconfig"
1411
1412 # misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1413
1414 source "drivers/misc/Kconfig"
1415
1416 source "drivers/ide/Kconfig"
1417
1418 source "drivers/scsi/Kconfig"
1419
1420 source "drivers/ata/Kconfig"
1421
1422 source "drivers/md/Kconfig"
1423
1424 source "drivers/message/fusion/Kconfig"
1425
1426 source "drivers/ieee1394/Kconfig"
1427
1428 source "drivers/message/i2o/Kconfig"
1429
1430 source "drivers/net/Kconfig"
1431
1432 source "drivers/isdn/Kconfig"
1433
1434 # input before char - char/joystick depends on it. As does USB.
1435
1436 source "drivers/input/Kconfig"
1437
1438 source "drivers/char/Kconfig"
1439
1440 source "drivers/i2c/Kconfig"
1441
1442 source "drivers/spi/Kconfig"
1443
1444 source "drivers/gpio/Kconfig"
1445
1446 source "drivers/w1/Kconfig"
1447
1448 source "drivers/power/Kconfig"
1449
1450 source "drivers/hwmon/Kconfig"
1451
1452 source "drivers/thermal/Kconfig"
1453
1454 source "drivers/watchdog/Kconfig"
1455
1456 source "drivers/ssb/Kconfig"
1457
1458 #source "drivers/l3/Kconfig"
1459
1460 source "drivers/mfd/Kconfig"
1461
1462 source "drivers/media/Kconfig"
1463
1464 source "drivers/video/Kconfig"
1465
1466 source "sound/Kconfig"
1467
1468 source "drivers/hid/Kconfig"
1469
1470 source "drivers/usb/Kconfig"
1471
1472 source "drivers/uwb/Kconfig"
1473
1474 source "drivers/mmc/Kconfig"
1475
1476 source "drivers/memstick/Kconfig"
1477
1478 source "drivers/accessibility/Kconfig"
1479
1480 source "drivers/leds/Kconfig"
1481
1482 source "drivers/rtc/Kconfig"
1483
1484 source "drivers/dma/Kconfig"
1485
1486 source "drivers/dca/Kconfig"
1487
1488 source "drivers/auxdisplay/Kconfig"
1489
1490 source "drivers/regulator/Kconfig"
1491
1492 source "drivers/uio/Kconfig"
1493
1494 source "drivers/staging/Kconfig"
1495
1496 endmenu
1497
1498 source "fs/Kconfig"
1499
1500 source "arch/arm/Kconfig.debug"
1501
1502 source "security/Kconfig"
1503
1504 source "crypto/Kconfig"
1505
1506 source "lib/Kconfig"