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 HAVE_TCM
  50         bool
  51         select GENERIC_ALLOCATOR
  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 ARCH_HAS_CPUFREQ
 130         bool
 131         help
 132           Internal node to signify that the ARCH has CPUFREQ support
 133           and that the relevant menu configurations are displayed for
 134           it.
 135
 136 config GENERIC_HWEIGHT
 137         bool
 138         default y
 139
 140 config GENERIC_CALIBRATE_DELAY
 141         bool
 142         default y
 143
 144 config ARCH_MAY_HAVE_PC_FDC
 145         bool
 146
 147 config ZONE_DMA
 148         bool
 149
 150 config GENERIC_ISA_DMA
 151         bool
 152
 153 config FIQ
 154         bool
 155
 156 config ARCH_MTD_XIP
 157         bool
 158
 159 config GENERIC_HARDIRQS_NO__DO_IRQ
 160         def_bool y
 161
 162 if OPROFILE
 163
 164 config OPROFILE_ARMV6
 165         def_bool y
 166         depends on CPU_V6 && !SMP
 167         select OPROFILE_ARM11_CORE
 168
 169 config OPROFILE_MPCORE
 170         def_bool y
 171         depends on CPU_V6 && SMP
 172         select OPROFILE_ARM11_CORE
 173
 174 config OPROFILE_ARM11_CORE
 175         bool
 176
 177 config OPROFILE_ARMV7
 178         def_bool y
 179         depends on CPU_V7 && !SMP
 180         bool
 181
 182 endif
 183
 184 config VECTORS_BASE
 185         hex
 186         default 0xffff0000 if MMU || CPU_HIGH_VECTOR
 187         default DRAM_BASE if REMAP_VECTORS_TO_RAM
 188         default 0x00000000
 189         help
 190           The base address of exception vectors.
 191
 192 source "init/Kconfig"
 193
 194 source "kernel/Kconfig.freezer"
 195
 196 menu "System Type"
 197
 198 config MMU
 199         bool "MMU-based Paged Memory Management Support"
 200         default y
 201         help
 202           Select if you want MMU-based virtualised addressing space
 203           support by paged memory management. If unsure, say 'Y'.
 204
 205 choice
 206         prompt "ARM system type"
 207         default ARCH_VERSATILE
 208
 209 config ARCH_AAEC2000
 210         bool "Agilent AAEC-2000 based"
 211         select CPU_ARM920T
 212         select ARM_AMBA
 213         select HAVE_CLK
 214         help
 215           This enables support for systems based on the Agilent AAEC-2000
 216
 217 config ARCH_INTEGRATOR
 218         bool "ARM Ltd. Integrator family"
 219         select ARM_AMBA
 220         select ARCH_HAS_CPUFREQ
 221         select HAVE_CLK
 222         select COMMON_CLKDEV
 223         select ICST525
 224         help
 225           Support for ARM's Integrator platform.
 226
 227 config ARCH_REALVIEW
 228         bool "ARM Ltd. RealView family"
 229         select ARM_AMBA
 230         select HAVE_CLK
 231         select COMMON_CLKDEV
 232         select ICST307
 233         select GENERIC_TIME
 234         select GENERIC_CLOCKEVENTS
 235         select ARCH_WANT_OPTIONAL_GPIOLIB
 236         help
 237           This enables support for ARM Ltd RealView boards.
 238
 239 config ARCH_VERSATILE
 240         bool "ARM Ltd. Versatile family"
 241         select ARM_AMBA
 242         select ARM_VIC
 243         select HAVE_CLK
 244         select COMMON_CLKDEV
 245         select ICST307
 246         select GENERIC_TIME
 247         select GENERIC_CLOCKEVENTS
 248         select ARCH_WANT_OPTIONAL_GPIOLIB
 249         help
 250           This enables support for ARM Ltd Versatile board.
 251
 252 config ARCH_AT91
 253         bool "Atmel AT91"
 254         select GENERIC_GPIO
 255         select ARCH_REQUIRE_GPIOLIB
 256         select HAVE_CLK
 257         help
 258           This enables support for systems based on the Atmel AT91RM9200,
 259           AT91SAM9 and AT91CAP9 processors.
 260
 261 config ARCH_CLPS711X
 262         bool "Cirrus Logic CLPS711x/EP721x-based"
 263         select CPU_ARM720T
 264         help
 265           Support for Cirrus Logic 711x/721x based boards.
 266
 267 config ARCH_GEMINI
 268         bool "Cortina Systems Gemini"
 269         select CPU_FA526
 270         select GENERIC_GPIO
 271         select ARCH_REQUIRE_GPIOLIB
 272         help
 273           Support for the Cortina Systems Gemini family SoCs
 274
 275 config ARCH_EBSA110
 276         bool "EBSA-110"
 277         select CPU_SA110
 278         select ISA
 279         select NO_IOPORT
 280         help
 281           This is an evaluation board for the StrongARM processor available
 282           from Digital. It has limited hardware on-board, including an
 283           Ethernet interface, two PCMCIA sockets, two serial ports and a
 284           parallel port.
 285
 286 config ARCH_EP93XX
 287         bool "EP93xx-based"
 288         select CPU_ARM920T
 289         select ARM_AMBA
 290         select ARM_VIC
 291         select GENERIC_GPIO
 292         select HAVE_CLK
 293         select COMMON_CLKDEV
 294         select ARCH_REQUIRE_GPIOLIB
 295         select ARCH_HAS_HOLES_MEMORYMODEL
 296         help
 297           This enables support for the Cirrus EP93xx series of CPUs.
 298
 299 config ARCH_FOOTBRIDGE
 300         bool "FootBridge"
 301         select CPU_SA110
 302         select FOOTBRIDGE
 303         help
 304           Support for systems based on the DC21285 companion chip
 305           ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
 306
 307 config ARCH_MXC
 308         bool "Freescale MXC/iMX-based"
 309         select GENERIC_TIME
 310         select GENERIC_CLOCKEVENTS
 311         select ARCH_MTD_XIP
 312         select GENERIC_GPIO
 313         select ARCH_REQUIRE_GPIOLIB
 314         select HAVE_CLK
 315         help
 316           Support for Freescale MXC/iMX-based family of processors
 317
 318 config ARCH_STMP3XXX
 319         bool "Freescale STMP3xxx"
 320         select CPU_ARM926T
 321         select HAVE_CLK
 322         select COMMON_CLKDEV
 323         select ARCH_REQUIRE_GPIOLIB
 324         select GENERIC_TIME
 325         select GENERIC_CLOCKEVENTS
 326         select GENERIC_GPIO
 327         select USB_ARCH_HAS_EHCI
 328         help
 329           Support for systems based on the Freescale 3xxx CPUs.
 330
 331 config ARCH_NETX
 332         bool "Hilscher NetX based"
 333         select CPU_ARM926T
 334         select ARM_VIC
 335         select GENERIC_CLOCKEVENTS
 336         select GENERIC_TIME
 337         help
 338           This enables support for systems based on the Hilscher NetX Soc
 339
 340 config ARCH_H720X
 341         bool "Hynix HMS720x-based"
 342         select CPU_ARM720T
 343         select ISA_DMA_API
 344         help
 345           This enables support for systems based on the Hynix HMS720x
 346
 347 config ARCH_NOMADIK
 348         bool "STMicroelectronics Nomadik"
 349         select ARM_AMBA
 350         select ARM_VIC
 351         select CPU_ARM926T
 352         select HAVE_CLK
 353         select COMMON_CLKDEV
 354         select GENERIC_TIME
 355         select GENERIC_CLOCKEVENTS
 356         select GENERIC_GPIO
 357         select ARCH_REQUIRE_GPIOLIB
 358         help
 359           Support for the Nomadik platform by ST-Ericsson
 360
 361 config ARCH_IOP13XX
 362         bool "IOP13xx-based"
 363         depends on MMU
 364         select CPU_XSC3
 365         select PLAT_IOP
 366         select PCI
 367         select ARCH_SUPPORTS_MSI
 368         select VMSPLIT_1G
 369         help
 370           Support for Intel's IOP13XX (XScale) family of processors.
 371
 372 config ARCH_IOP32X
 373         bool "IOP32x-based"
 374         depends on MMU
 375         select CPU_XSCALE
 376         select PLAT_IOP
 377         select PCI
 378         select GENERIC_GPIO
 379         select ARCH_REQUIRE_GPIOLIB
 380         help
 381           Support for Intel's 80219 and IOP32X (XScale) family of
 382           processors.
 383
 384 config ARCH_IOP33X
 385         bool "IOP33x-based"
 386         depends on MMU
 387         select CPU_XSCALE
 388         select PLAT_IOP
 389         select PCI
 390         select GENERIC_GPIO
 391         select ARCH_REQUIRE_GPIOLIB
 392         help
 393           Support for Intel's IOP33X (XScale) family of processors.
 394
 395 config ARCH_IXP23XX
 396         bool "IXP23XX-based"
 397         depends on MMU
 398         select CPU_XSC3
 399         select PCI
 400         help
 401           Support for Intel's IXP23xx (XScale) family of processors.
 402
 403 config ARCH_IXP2000
 404         bool "IXP2400/2800-based"
 405         depends on MMU
 406         select CPU_XSCALE
 407         select PCI
 408         help
 409           Support for Intel's IXP2400/2800 (XScale) family of processors.
 410
 411 config ARCH_IXP4XX
 412         bool "IXP4xx-based"
 413         depends on MMU
 414         select CPU_XSCALE
 415         select GENERIC_GPIO
 416         select GENERIC_TIME
 417         select GENERIC_CLOCKEVENTS
 418         select DMABOUNCE if PCI
 419         help
 420           Support for Intel's IXP4XX (XScale) family of processors.
 421
 422 config ARCH_L7200
 423         bool "LinkUp-L7200"
 424         select CPU_ARM720T
 425         select FIQ
 426         help
 427           Say Y here if you intend to run this kernel on a LinkUp Systems
 428           L7200 Software Development Board which uses an ARM720T processor.
 429           Information on this board can be obtained at:
 430
 431           <http://www.linkupsys.com/>
 432
 433           If you have any questions or comments about the Linux kernel port
 434           to this board, send e-mail to <sjhill@cotw.com>.
 435
 436 config ARCH_KIRKWOOD
 437         bool "Marvell Kirkwood"
 438         select CPU_FEROCEON
 439         select PCI
 440         select GENERIC_GPIO
 441         select ARCH_REQUIRE_GPIOLIB
 442         select GENERIC_TIME
 443         select GENERIC_CLOCKEVENTS
 444         select PLAT_ORION
 445         help
 446           Support for the following Marvell Kirkwood series SoCs:
 447           88F6180, 88F6192 and 88F6281.
 448
 449 config ARCH_LOKI
 450         bool "Marvell Loki (88RC8480)"
 451         select CPU_FEROCEON
 452         select GENERIC_TIME
 453         select GENERIC_CLOCKEVENTS
 454         select PLAT_ORION
 455         help
 456           Support for the Marvell Loki (88RC8480) SoC.
 457
 458 config ARCH_MV78XX0
 459         bool "Marvell MV78xx0"
 460         select CPU_FEROCEON
 461         select PCI
 462         select GENERIC_GPIO
 463         select ARCH_REQUIRE_GPIOLIB
 464         select GENERIC_TIME
 465         select GENERIC_CLOCKEVENTS
 466         select PLAT_ORION
 467         help
 468           Support for the following Marvell MV78xx0 series SoCs:
 469           MV781x0, MV782x0.
 470
 471 config ARCH_ORION5X
 472         bool "Marvell Orion"
 473         depends on MMU
 474         select CPU_FEROCEON
 475         select PCI
 476         select GENERIC_GPIO
 477         select ARCH_REQUIRE_GPIOLIB
 478         select GENERIC_TIME
 479         select GENERIC_CLOCKEVENTS
 480         select PLAT_ORION
 481         help
 482           Support for the following Marvell Orion 5x series SoCs:
 483           Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
 484           Orion-2 (5281), Orion-1-90 (6183).
 485
 486 config ARCH_MMP
 487         bool "Marvell PXA168/910"
 488         depends on MMU
 489         select GENERIC_GPIO
 490         select ARCH_REQUIRE_GPIOLIB
 491         select HAVE_CLK
 492         select COMMON_CLKDEV
 493         select GENERIC_TIME
 494         select GENERIC_CLOCKEVENTS
 495         select TICK_ONESHOT
 496         select PLAT_PXA
 497         help
 498           Support for Marvell's PXA168/910 processor line.
 499
 500 config ARCH_KS8695
 501         bool "Micrel/Kendin KS8695"
 502         select CPU_ARM922T
 503         select GENERIC_GPIO
 504         select ARCH_REQUIRE_GPIOLIB
 505         help
 506           Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
 507           System-on-Chip devices.
 508
 509 config ARCH_NS9XXX
 510         bool "NetSilicon NS9xxx"
 511         select CPU_ARM926T
 512         select GENERIC_GPIO
 513         select GENERIC_TIME
 514         select GENERIC_CLOCKEVENTS
 515         select HAVE_CLK
 516         help
 517           Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
 518           System.
 519
 520           <http://www.digi.com/products/microprocessors/index.jsp>
 521
 522 config ARCH_W90X900
 523         bool "Nuvoton W90X900 CPU"
 524         select CPU_ARM926T
 525         select ARCH_REQUIRE_GPIOLIB
 526         select GENERIC_GPIO
 527         select HAVE_CLK
 528         select COMMON_CLKDEV
 529         select GENERIC_TIME
 530         select GENERIC_CLOCKEVENTS
 531         help
 532           Support for Nuvoton (Winbond logic dept.) ARM9 processor,
 533           At present, the w90x900 has been renamed nuc900, regarding
 534           the ARM series product line, you can login the following
 535           link address to know more.
 536
 537           <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
 538                 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
 539
 540 config ARCH_PNX4008
 541         bool "Philips Nexperia PNX4008 Mobile"
 542         select CPU_ARM926T
 543         select HAVE_CLK
 544         help
 545           This enables support for Philips PNX4008 mobile platform.
 546
 547 config ARCH_PXA
 548         bool "PXA2xx/PXA3xx-based"
 549         depends on MMU
 550         select ARCH_MTD_XIP
 551         select ARCH_HAS_CPUFREQ
 552         select GENERIC_GPIO
 553         select HAVE_CLK
 554         select COMMON_CLKDEV
 555         select ARCH_REQUIRE_GPIOLIB
 556         select GENERIC_TIME
 557         select GENERIC_CLOCKEVENTS
 558         select TICK_ONESHOT
 559         select PLAT_PXA
 560         help
 561           Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
 562
 563 config ARCH_MSM
 564         bool "Qualcomm MSM"
 565         select CPU_V6
 566         select GENERIC_TIME
 567         select GENERIC_CLOCKEVENTS
 568         help
 569           Support for Qualcomm MSM7K based systems.  This runs on the ARM11
 570           apps processor of the MSM7K and depends on a shared memory
 571           interface to the ARM9 modem processor which runs the baseband stack
 572           and controls some vital subsystems (clock and power control, etc).
 573
 574 config ARCH_RPC
 575         bool "RiscPC"
 576         select ARCH_ACORN
 577         select FIQ
 578         select TIMER_ACORN
 579         select ARCH_MAY_HAVE_PC_FDC
 580         select HAVE_PATA_PLATFORM
 581         select ISA_DMA_API
 582         select NO_IOPORT
 583         select ARCH_SPARSEMEM_ENABLE
 584         help
 585           On the Acorn Risc-PC, Linux can support the internal IDE disk and
 586           CD-ROM interface, serial and parallel port, and the floppy drive.
 587
 588 config ARCH_SA1100
 589         bool "SA1100-based"
 590         select CPU_SA1100
 591         select ISA
 592         select ARCH_SPARSEMEM_ENABLE
 593         select ARCH_MTD_XIP
 594         select ARCH_HAS_CPUFREQ
 595         select GENERIC_GPIO
 596         select GENERIC_TIME
 597         select GENERIC_CLOCKEVENTS
 598         select HAVE_CLK
 599         select TICK_ONESHOT
 600         select ARCH_REQUIRE_GPIOLIB
 601         help
 602           Support for StrongARM 11x0 based boards.
 603
 604 config ARCH_S3C2410
 605         bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
 606         select GENERIC_GPIO
 607         select ARCH_HAS_CPUFREQ
 608         select HAVE_CLK
 609         help
 610           Samsung S3C2410X CPU based systems, such as the Simtec Electronics
 611           BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
 612           the Samsung SMDK2410 development board (and derivatives).
 613
 614 config ARCH_S3C64XX
 615         bool "Samsung S3C64XX"
 616         select GENERIC_GPIO
 617         select HAVE_CLK
 618         select ARCH_HAS_CPUFREQ
 619         help
 620           Samsung S3C64XX series based systems
 621
 622 config ARCH_S5PC1XX
 623         bool "Samsung S5PC1XX"
 624         select GENERIC_GPIO
 625         select HAVE_CLK
 626         select CPU_V7
 627         help
 628           Samsung S5PC1XX series based systems
 629
 630 config ARCH_SHARK
 631         bool "Shark"
 632         select CPU_SA110
 633         select ISA
 634         select ISA_DMA
 635         select ZONE_DMA
 636         select PCI
 637         help
 638           Support for the StrongARM based Digital DNARD machine, also known
 639           as "Shark" (<http://www.shark-linux.de/shark.html>).
 640
 641 config ARCH_LH7A40X
 642         bool "Sharp LH7A40X"
 643         select CPU_ARM922T
 644         select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
 645         select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
 646         help
 647           Say Y here for systems based on one of the Sharp LH7A40X
 648           System on a Chip processors.  These CPUs include an ARM922T
 649           core with a wide array of integrated devices for
 650           hand-held and low-power applications.
 651
 652 config ARCH_U300
 653         bool "ST-Ericsson U300 Series"
 654         depends on MMU
 655         select CPU_ARM926T
 656         select HAVE_TCM
 657         select ARM_AMBA
 658         select ARM_VIC
 659         select GENERIC_TIME
 660         select GENERIC_CLOCKEVENTS
 661         select HAVE_CLK
 662         select COMMON_CLKDEV
 663         select GENERIC_GPIO
 664         help
 665           Support for ST-Ericsson U300 series mobile platforms.
 666
 667 config ARCH_DAVINCI
 668         bool "TI DaVinci"
 669         select CPU_ARM926T
 670         select GENERIC_TIME
 671         select GENERIC_CLOCKEVENTS
 672         select GENERIC_GPIO
 673         select ARCH_REQUIRE_GPIOLIB
 674         select HAVE_CLK
 675         select ZONE_DMA
 676         select HAVE_IDE
 677         select COMMON_CLKDEV
 678         select GENERIC_ALLOCATOR
 679         help
 680           Support for TI's DaVinci platform.
 681
 682 config ARCH_OMAP
 683         bool "TI OMAP"
 684         select GENERIC_GPIO
 685         select HAVE_CLK
 686         select ARCH_REQUIRE_GPIOLIB
 687         select ARCH_HAS_CPUFREQ
 688         select GENERIC_TIME
 689         select GENERIC_CLOCKEVENTS
 690         help
 691           Support for TI's OMAP platform (OMAP1 and OMAP2).
 692
 693 config ARCH_BCMRING
 694         bool "Broadcom BCMRING"
 695         depends on MMU
 696         select CPU_V6
 697         select ARM_AMBA
 698         select COMMON_CLKDEV
 699         select GENERIC_TIME
 700         select GENERIC_CLOCKEVENTS
 701         select ARCH_WANT_OPTIONAL_GPIOLIB
 702         help
 703           Support for Broadcom's BCMRing platform.
 704
 705 endchoice
 706
 707 source "arch/arm/mach-clps711x/Kconfig"
 708
 709 source "arch/arm/mach-ep93xx/Kconfig"
 710
 711 source "arch/arm/mach-footbridge/Kconfig"
 712
 713 source "arch/arm/mach-gemini/Kconfig"
 714
 715 source "arch/arm/mach-integrator/Kconfig"
 716
 717 source "arch/arm/mach-iop32x/Kconfig"
 718
 719 source "arch/arm/mach-iop33x/Kconfig"
 720
 721 source "arch/arm/mach-iop13xx/Kconfig"
 722
 723 source "arch/arm/mach-ixp4xx/Kconfig"
 724
 725 source "arch/arm/mach-ixp2000/Kconfig"
 726
 727 source "arch/arm/mach-ixp23xx/Kconfig"
 728
 729 source "arch/arm/mach-loki/Kconfig"
 730
 731 source "arch/arm/mach-mv78xx0/Kconfig"
 732
 733 source "arch/arm/mach-pxa/Kconfig"
 734 source "arch/arm/plat-pxa/Kconfig"
 735
 736 source "arch/arm/mach-mmp/Kconfig"
 737
 738 source "arch/arm/mach-sa1100/Kconfig"
 739
 740 source "arch/arm/plat-omap/Kconfig"
 741
 742 source "arch/arm/mach-omap1/Kconfig"
 743
 744 source "arch/arm/mach-omap2/Kconfig"
 745
 746 source "arch/arm/mach-orion5x/Kconfig"
 747
 748 source "arch/arm/mach-kirkwood/Kconfig"
 749
 750 source "arch/arm/plat-s3c24xx/Kconfig"
 751 source "arch/arm/plat-s3c64xx/Kconfig"
 752 source "arch/arm/plat-s3c/Kconfig"
 753 source "arch/arm/plat-s5pc1xx/Kconfig"
 754
 755 if ARCH_S3C2410
 756 source "arch/arm/mach-s3c2400/Kconfig"
 757 source "arch/arm/mach-s3c2410/Kconfig"
 758 source "arch/arm/mach-s3c2412/Kconfig"
 759 source "arch/arm/mach-s3c2440/Kconfig"
 760 source "arch/arm/mach-s3c2442/Kconfig"
 761 source "arch/arm/mach-s3c2443/Kconfig"
 762 endif
 763
 764 if ARCH_S3C64XX
 765 source "arch/arm/mach-s3c6400/Kconfig"
 766 source "arch/arm/mach-s3c6410/Kconfig"
 767 endif
 768
 769 source "arch/arm/plat-stmp3xxx/Kconfig"
 770
 771 if ARCH_S5PC1XX
 772 source "arch/arm/mach-s5pc100/Kconfig"
 773 endif
 774
 775 source "arch/arm/mach-lh7a40x/Kconfig"
 776
 777 source "arch/arm/mach-h720x/Kconfig"
 778
 779 source "arch/arm/mach-versatile/Kconfig"
 780
 781 source "arch/arm/mach-aaec2000/Kconfig"
 782
 783 source "arch/arm/mach-realview/Kconfig"
 784
 785 source "arch/arm/mach-at91/Kconfig"
 786
 787 source "arch/arm/plat-mxc/Kconfig"
 788
 789 source "arch/arm/mach-nomadik/Kconfig"
 790
 791 source "arch/arm/mach-netx/Kconfig"
 792
 793 source "arch/arm/mach-ns9xxx/Kconfig"
 794
 795 source "arch/arm/mach-davinci/Kconfig"
 796
 797 source "arch/arm/mach-ks8695/Kconfig"
 798
 799 source "arch/arm/mach-msm/Kconfig"
 800
 801 source "arch/arm/mach-u300/Kconfig"
 802
 803 source "arch/arm/mach-w90x900/Kconfig"
 804
 805 source "arch/arm/mach-bcmring/Kconfig"
 806
 807 # Definitions to make life easier
 808 config ARCH_ACORN
 809         bool
 810
 811 config PLAT_IOP
 812         bool
 813
 814 config PLAT_ORION
 815         bool
 816
 817 config PLAT_PXA
 818         bool
 819
 820 source arch/arm/mm/Kconfig
 821
 822 config IWMMXT
 823         bool "Enable iWMMXt support"
 824         depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK
 825         default y if PXA27x || PXA3xx || ARCH_MMP
 826         help
 827           Enable support for iWMMXt context switching at run time if
 828           running on a CPU that supports it.
 829
 830 #  bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
 831 config XSCALE_PMU
 832         bool
 833         depends on CPU_XSCALE && !XSCALE_PMU_TIMER
 834         default y
 835
 836 if !MMU
 837 source "arch/arm/Kconfig-nommu"
 838 endif
 839
 840 config ARM_ERRATA_411920
 841         bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
 842         depends on CPU_V6 && !SMP
 843         help
 844           Invalidation of the Instruction Cache operation can
 845           fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
 846           It does not affect the MPCore. This option enables the ARM Ltd.
 847           recommended workaround.
 848
 849 config ARM_ERRATA_430973
 850         bool "ARM errata: Stale prediction on replaced interworking branch"
 851         depends on CPU_V7
 852         help
 853           This option enables the workaround for the 430973 Cortex-A8
 854           (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
 855           interworking branch is replaced with another code sequence at the
 856           same virtual address, whether due to self-modifying code or virtual
 857           to physical address re-mapping, Cortex-A8 does not recover from the
 858           stale interworking branch prediction. This results in Cortex-A8
 859           executing the new code sequence in the incorrect ARM or Thumb state.
 860           The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
 861           and also flushes the branch target cache at every context switch.
 862           Note that setting specific bits in the ACTLR register may not be
 863           available in non-secure mode.
 864
 865 config ARM_ERRATA_458693
 866         bool "ARM errata: Processor deadlock when a false hazard is created"
 867         depends on CPU_V7
 868         help
 869           This option enables the workaround for the 458693 Cortex-A8 (r2p0)
 870           erratum. For very specific sequences of memory operations, it is
 871           possible for a hazard condition intended for a cache line to instead
 872           be incorrectly associated with a different cache line. This false
 873           hazard might then cause a processor deadlock. The workaround enables
 874           the L1 caching of the NEON accesses and disables the PLD instruction
 875           in the ACTLR register. Note that setting specific bits in the ACTLR
 876           register may not be available in non-secure mode.
 877
 878 config ARM_ERRATA_460075
 879         bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
 880         depends on CPU_V7
 881         help
 882           This option enables the workaround for the 460075 Cortex-A8 (r2p0)
 883           erratum. Any asynchronous access to the L2 cache may encounter a
 884           situation in which recent store transactions to the L2 cache are lost
 885           and overwritten with stale memory contents from external memory. The
 886           workaround disables the write-allocate mode for the L2 cache via the
 887           ACTLR register. Note that setting specific bits in the ACTLR register
 888           may not be available in non-secure mode.
 889
 890 endmenu
 891
 892 source "arch/arm/common/Kconfig"
 893
 894 config FORCE_MAX_ZONEORDER
 895         int
 896         depends on SA1111
 897         default "9"
 898
 899 menu "Bus support"
 900
 901 config ARM_AMBA
 902         bool
 903
 904 config ISA
 905         bool
 906         help
 907           Find out whether you have ISA slots on your motherboard.  ISA is the
 908           name of a bus system, i.e. the way the CPU talks to the other stuff
 909           inside your box.  Other bus systems are PCI, EISA, MicroChannel
 910           (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
 911           newer boards don't support it.  If you have ISA, say Y, otherwise N.
 912
 913 # Select ISA DMA controller support
 914 config ISA_DMA
 915         bool
 916         select ISA_DMA_API
 917
 918 # Select ISA DMA interface
 919 config ISA_DMA_API
 920         bool
 921
 922 config PCI
 923         bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
 924         help
 925           Find out whether you have a PCI motherboard. PCI is the name of a
 926           bus system, i.e. the way the CPU talks to the other stuff inside
 927           your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
 928           VESA. If you have PCI, say Y, otherwise N.
 929
 930 config PCI_SYSCALL
 931         def_bool PCI
 932
 933 # Select the host bridge type
 934 config PCI_HOST_VIA82C505
 935         bool
 936         depends on PCI && ARCH_SHARK
 937         default y
 938
 939 config PCI_HOST_ITE8152
 940         bool
 941         depends on PCI && MACH_ARMCORE
 942         default y
 943         select DMABOUNCE
 944
 945 source "drivers/pci/Kconfig"
 946
 947 source "drivers/pcmcia/Kconfig"
 948
 949 endmenu
 950
 951 menu "Kernel Features"
 952
 953 source "kernel/time/Kconfig"
 954
 955 config SMP
 956         bool "Symmetric Multi-Processing (EXPERIMENTAL)"
 957         depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP ||\
 958                  MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4)
 959         depends on GENERIC_CLOCKEVENTS
 960         select USE_GENERIC_SMP_HELPERS
 961         select HAVE_ARM_SCU if (ARCH_REALVIEW || ARCH_OMAP4)
 962         help
 963           This enables support for systems with more than one CPU. If you have
 964           a system with only one CPU, like most personal computers, say N. If
 965           you have a system with more than one CPU, say Y.
 966
 967           If you say N here, the kernel will run on single and multiprocessor
 968           machines, but will use only one CPU of a multiprocessor machine. If
 969           you say Y here, the kernel will run on many, but not all, single
 970           processor machines. On a single processor machine, the kernel will
 971           run faster if you say N here.
 972
 973           See also <file:Documentation/i386/IO-APIC.txt>,
 974           <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
 975           <http://www.linuxdoc.org/docs.html#howto>.
 976
 977           If you don't know what to do here, say N.
 978
 979 config HAVE_ARM_SCU
 980         bool
 981         depends on SMP
 982         help
 983           This option enables support for the ARM system coherency unit
 984
 985 config HAVE_ARM_TWD
 986         bool
 987         depends on SMP
 988         help
 989           This options enables support for the ARM timer and watchdog unit
 990
 991 choice
 992         prompt "Memory split"
 993         default VMSPLIT_3G
 994         help
 995           Select the desired split between kernel and user memory.
 996
 997           If you are not absolutely sure what you are doing, leave this
 998           option alone!
 999
1000         config VMSPLIT_3G
1001                 bool "3G/1G user/kernel split"
1002         config VMSPLIT_2G
1003                 bool "2G/2G user/kernel split"
1004         config VMSPLIT_1G
1005                 bool "1G/3G user/kernel split"
1006 endchoice
1007
1008 config PAGE_OFFSET
1009         hex
1010         default 0x40000000 if VMSPLIT_1G
1011         default 0x80000000 if VMSPLIT_2G
1012         default 0xC0000000
1013
1014 config NR_CPUS
1015         int "Maximum number of CPUs (2-32)"
1016         range 2 32
1017         depends on SMP
1018         default "4"
1019
1020 config HOTPLUG_CPU
1021         bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1022         depends on SMP && HOTPLUG && EXPERIMENTAL
1023         help
1024           Say Y here to experiment with turning CPUs off and on.  CPUs
1025           can be controlled through /sys/devices/system/cpu.
1026
1027 config LOCAL_TIMERS
1028         bool "Use local timer interrupts"
1029         depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || \
1030                 REALVIEW_EB_A9MP || MACH_REALVIEW_PBX || ARCH_OMAP4)
1031         default y
1032         select HAVE_ARM_TWD if (ARCH_REALVIEW || ARCH_OMAP4)
1033         help
1034           Enable support for local timers on SMP platforms, rather then the
1035           legacy IPI broadcast method.  Local timers allows the system
1036           accounting to be spread across the timer interval, preventing a
1037           "thundering herd" at every timer tick.
1038
1039 source kernel/Kconfig.preempt
1040
1041 config HZ
1042         int
1043         default 128 if ARCH_L7200
1044         default 200 if ARCH_EBSA110 || ARCH_S3C2410
1045         default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
1046         default AT91_TIMER_HZ if ARCH_AT91
1047         default 100
1048
1049 config THUMB2_KERNEL
1050         bool "Compile the kernel in Thumb-2 mode"
1051         depends on CPU_V7 && EXPERIMENTAL
1052         select AEABI
1053         select ARM_ASM_UNIFIED
1054         help
1055           By enabling this option, the kernel will be compiled in
1056           Thumb-2 mode. A compiler/assembler that understand the unified
1057           ARM-Thumb syntax is needed.
1058
1059           If unsure, say N.
1060
1061 config ARM_ASM_UNIFIED
1062         bool
1063
1064 config AEABI
1065         bool "Use the ARM EABI to compile the kernel"
1066         help
1067           This option allows for the kernel to be compiled using the latest
1068           ARM ABI (aka EABI).  This is only useful if you are using a user
1069           space environment that is also compiled with EABI.
1070
1071           Since there are major incompatibilities between the legacy ABI and
1072           EABI, especially with regard to structure member alignment, this
1073           option also changes the kernel syscall calling convention to
1074           disambiguate both ABIs and allow for backward compatibility support
1075           (selected with CONFIG_OABI_COMPAT).
1076
1077           To use this you need GCC version 4.0.0 or later.
1078
1079 config OABI_COMPAT
1080         bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
1081         depends on AEABI && EXPERIMENTAL
1082         default y
1083         help
1084           This option preserves the old syscall interface along with the
1085           new (ARM EABI) one. It also provides a compatibility layer to
1086           intercept syscalls that have structure arguments which layout
1087           in memory differs between the legacy ABI and the new ARM EABI
1088           (only for non "thumb" binaries). This option adds a tiny
1089           overhead to all syscalls and produces a slightly larger kernel.
1090           If you know you'll be using only pure EABI user space then you
1091           can say N here. If this option is not selected and you attempt
1092           to execute a legacy ABI binary then the result will be
1093           UNPREDICTABLE (in fact it can be predicted that it won't work
1094           at all). If in doubt say Y.
1095
1096 config ARCH_HAS_HOLES_MEMORYMODEL
1097         bool
1098
1099 # Discontigmem is deprecated
1100 config ARCH_DISCONTIGMEM_ENABLE
1101         bool
1102
1103 config ARCH_SPARSEMEM_ENABLE
1104         bool
1105
1106 config ARCH_SPARSEMEM_DEFAULT
1107         def_bool ARCH_SPARSEMEM_ENABLE
1108
1109 config ARCH_SELECT_MEMORY_MODEL
1110         def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
1111
1112 config NODES_SHIFT
1113         int
1114         default "4" if ARCH_LH7A40X
1115         default "2"
1116         depends on NEED_MULTIPLE_NODES
1117
1118 config HIGHMEM
1119         bool "High Memory Support (EXPERIMENTAL)"
1120         depends on MMU && EXPERIMENTAL
1121         help
1122           The address space of ARM processors is only 4 Gigabytes large
1123           and it has to accommodate user address space, kernel address
1124           space as well as some memory mapped IO. That means that, if you
1125           have a large amount of physical memory and/or IO, not all of the
1126           memory can be "permanently mapped" by the kernel. The physical
1127           memory that is not permanently mapped is called "high memory".
1128
1129           Depending on the selected kernel/user memory split, minimum
1130           vmalloc space and actual amount of RAM, you may not need this
1131           option which should result in a slightly faster kernel.
1132
1133           If unsure, say n.
1134
1135 config HIGHPTE
1136         bool "Allocate 2nd-level pagetables from highmem"
1137         depends on HIGHMEM
1138         depends on !OUTER_CACHE
1139
1140 source "mm/Kconfig"
1141
1142 config LEDS
1143         bool "Timer and CPU usage LEDs"
1144         depends on ARCH_CDB89712 || ARCH_EBSA110 || \
1145                    ARCH_EBSA285 || ARCH_INTEGRATOR || \
1146                    ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1147                    ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
1148                    ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
1149                    ARCH_AT91 || ARCH_DAVINCI || \
1150                    ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
1151         help
1152           If you say Y here, the LEDs on your machine will be used
1153           to provide useful information about your current system status.
1154
1155           If you are compiling a kernel for a NetWinder or EBSA-285, you will
1156           be able to select which LEDs are active using the options below. If
1157           you are compiling a kernel for the EBSA-110 or the LART however, the
1158           red LED will simply flash regularly to indicate that the system is
1159           still functional. It is safe to say Y here if you have a CATS
1160           system, but the driver will do nothing.
1161
1162 config LEDS_TIMER
1163         bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
1164                             OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1165                             || MACH_OMAP_PERSEUS2
1166         depends on LEDS
1167         depends on !GENERIC_CLOCKEVENTS
1168         default y if ARCH_EBSA110
1169         help
1170           If you say Y here, one of the system LEDs (the green one on the
1171           NetWinder, the amber one on the EBSA285, or the red one on the LART)
1172           will flash regularly to indicate that the system is still
1173           operational. This is mainly useful to kernel hackers who are
1174           debugging unstable kernels.
1175
1176           The LART uses the same LED for both Timer LED and CPU usage LED
1177           functions. You may choose to use both, but the Timer LED function
1178           will overrule the CPU usage LED.
1179
1180 config LEDS_CPU
1181         bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
1182                         !ARCH_OMAP) \
1183                         || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1184                         || MACH_OMAP_PERSEUS2
1185         depends on LEDS
1186         help
1187           If you say Y here, the red LED will be used to give a good real
1188           time indication of CPU usage, by lighting whenever the idle task
1189           is not currently executing.
1190
1191           The LART uses the same LED for both Timer LED and CPU usage LED
1192           functions. You may choose to use both, but the Timer LED function
1193           will overrule the CPU usage LED.
1194
1195 config ALIGNMENT_TRAP
1196         bool
1197         depends on CPU_CP15_MMU
1198         default y if !ARCH_EBSA110
1199         help
1200           ARM processors cannot fetch/store information which is not
1201           naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1202           address divisible by 4. On 32-bit ARM processors, these non-aligned
1203           fetch/store instructions will be emulated in software if you say
1204           here, which has a severe performance impact. This is necessary for
1205           correct operation of some network protocols. With an IP-only
1206           configuration it is safe to say N, otherwise say Y.
1207
1208 config UACCESS_WITH_MEMCPY
1209         bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1210         depends on MMU && EXPERIMENTAL
1211         default y if CPU_FEROCEON
1212         help
1213           Implement faster copy_to_user and clear_user methods for CPU
1214           cores where a 8-word STM instruction give significantly higher
1215           memory write throughput than a sequence of individual 32bit stores.
1216
1217           A possible side effect is a slight increase in scheduling latency
1218           between threads sharing the same address space if they invoke
1219           such copy operations with large buffers.
1220
1221           However, if the CPU data cache is using a write-allocate mode,
1222           this option is unlikely to provide any performance gain.
1223
1224 endmenu
1225
1226 menu "Boot options"
1227
1228 # Compressed boot loader in ROM.  Yes, we really want to ask about
1229 # TEXT and BSS so we preserve their values in the config files.
1230 config ZBOOT_ROM_TEXT
1231         hex "Compressed ROM boot loader base address"
1232         default "0"
1233         help
1234           The physical address at which the ROM-able zImage is to be
1235           placed in the target.  Platforms which normally make use of
1236           ROM-able zImage formats normally set this to a suitable
1237           value in their defconfig file.
1238
1239           If ZBOOT_ROM is not enabled, this has no effect.
1240
1241 config ZBOOT_ROM_BSS
1242         hex "Compressed ROM boot loader BSS address"
1243         default "0"
1244         help
1245           The base address of an area of read/write memory in the target
1246           for the ROM-able zImage which must be available while the
1247           decompressor is running. It must be large enough to hold the
1248           entire decompressed kernel plus an additional 128 KiB.
1249           Platforms which normally make use of ROM-able zImage formats
1250           normally set this to a suitable value in their defconfig file.
1251
1252           If ZBOOT_ROM is not enabled, this has no effect.
1253
1254 config ZBOOT_ROM
1255         bool "Compressed boot loader in ROM/flash"
1256         depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1257         help
1258           Say Y here if you intend to execute your compressed kernel image
1259           (zImage) directly from ROM or flash.  If unsure, say N.
1260
1261 config CMDLINE
1262         string "Default kernel command string"
1263         default ""
1264         help
1265           On some architectures (EBSA110 and CATS), there is currently no way
1266           for the boot loader to pass arguments to the kernel. For these
1267           architectures, you should supply some command-line options at build
1268           time by entering them here. As a minimum, you should specify the
1269           memory size and the root device (e.g., mem=64M root=/dev/nfs).
1270
1271 config XIP_KERNEL
1272         bool "Kernel Execute-In-Place from ROM"
1273         depends on !ZBOOT_ROM
1274         help
1275           Execute-In-Place allows the kernel to run from non-volatile storage
1276           directly addressable by the CPU, such as NOR flash. This saves RAM
1277           space since the text section of the kernel is not loaded from flash
1278           to RAM.  Read-write sections, such as the data section and stack,
1279           are still copied to RAM.  The XIP kernel is not compressed since
1280           it has to run directly from flash, so it will take more space to
1281           store it.  The flash address used to link the kernel object files,
1282           and for storing it, is configuration dependent. Therefore, if you
1283           say Y here, you must know the proper physical address where to
1284           store the kernel image depending on your own flash memory usage.
1285
1286           Also note that the make target becomes "make xipImage" rather than
1287           "make zImage" or "make Image".  The final kernel binary to put in
1288           ROM memory will be arch/arm/boot/xipImage.
1289
1290           If unsure, say N.
1291
1292 config XIP_PHYS_ADDR
1293         hex "XIP Kernel Physical Location"
1294         depends on XIP_KERNEL
1295         default "0x00080000"
1296         help
1297           This is the physical address in your flash memory the kernel will
1298           be linked for and stored to.  This address is dependent on your
1299           own flash usage.
1300
1301 config KEXEC
1302         bool "Kexec system call (EXPERIMENTAL)"
1303         depends on EXPERIMENTAL
1304         help
1305           kexec is a system call that implements the ability to shutdown your
1306           current kernel, and to start another kernel.  It is like a reboot
1307           but it is independent of the system firmware.   And like a reboot
1308           you can start any kernel with it, not just Linux.
1309
1310           It is an ongoing process to be certain the hardware in a machine
1311           is properly shutdown, so do not be surprised if this code does not
1312           initially work for you.  It may help to enable device hotplugging
1313           support.
1314
1315 config ATAGS_PROC
1316         bool "Export atags in procfs"
1317         depends on KEXEC
1318         default y
1319         help
1320           Should the atags used to boot the kernel be exported in an "atags"
1321           file in procfs. Useful with kexec.
1322
1323 endmenu
1324
1325 menu "CPU Power Management"
1326
1327 if ARCH_HAS_CPUFREQ
1328
1329 source "drivers/cpufreq/Kconfig"
1330
1331 config CPU_FREQ_SA1100
1332         bool
1333         depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
1334         default y
1335
1336 config CPU_FREQ_SA1110
1337         bool
1338         depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
1339         default y
1340
1341 config CPU_FREQ_INTEGRATOR
1342         tristate "CPUfreq driver for ARM Integrator CPUs"
1343         depends on ARCH_INTEGRATOR && CPU_FREQ
1344         default y
1345         help
1346           This enables the CPUfreq driver for ARM Integrator CPUs.
1347
1348           For details, take a look at <file:Documentation/cpu-freq>.
1349
1350           If in doubt, say Y.
1351
1352 config CPU_FREQ_PXA
1353         bool
1354         depends on CPU_FREQ && ARCH_PXA && PXA25x
1355         default y
1356         select CPU_FREQ_DEFAULT_GOV_USERSPACE
1357
1358 config CPU_FREQ_S3C64XX
1359         bool "CPUfreq support for Samsung S3C64XX CPUs"
1360         depends on CPU_FREQ && CPU_S3C6410
1361
1362 config CPU_FREQ_S3C
1363         bool
1364         help
1365           Internal configuration node for common cpufreq on Samsung SoC
1366
1367 config CPU_FREQ_S3C24XX
1368         bool "CPUfreq driver for Samsung S3C24XX series CPUs"
1369         depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1370         select CPU_FREQ_S3C
1371         help
1372           This enables the CPUfreq driver for the Samsung S3C24XX family
1373           of CPUs.
1374
1375           For details, take a look at <file:Documentation/cpu-freq>.
1376
1377           If in doubt, say N.
1378
1379 config CPU_FREQ_S3C24XX_PLL
1380         bool "Support CPUfreq changing of PLL frequency"
1381         depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1382         help
1383           Compile in support for changing the PLL frequency from the
1384           S3C24XX series CPUfreq driver. The PLL takes time to settle
1385           after a frequency change, so by default it is not enabled.
1386
1387           This also means that the PLL tables for the selected CPU(s) will
1388           be built which may increase the size of the kernel image.
1389
1390 config CPU_FREQ_S3C24XX_DEBUG
1391         bool "Debug CPUfreq Samsung driver core"
1392         depends on CPU_FREQ_S3C24XX
1393         help
1394           Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1395
1396 config CPU_FREQ_S3C24XX_IODEBUG
1397         bool "Debug CPUfreq Samsung driver IO timing"
1398         depends on CPU_FREQ_S3C24XX
1399         help
1400           Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1401
1402 config CPU_FREQ_S3C24XX_DEBUGFS
1403         bool "Export debugfs for CPUFreq"
1404         depends on CPU_FREQ_S3C24XX && DEBUG_FS
1405         help
1406           Export status information via debugfs.
1407
1408 endif
1409
1410 source "drivers/cpuidle/Kconfig"
1411
1412 endmenu
1413
1414 menu "Floating point emulation"
1415
1416 comment "At least one emulation must be selected"
1417
1418 config FPE_NWFPE
1419         bool "NWFPE math emulation"
1420         depends on !AEABI || OABI_COMPAT
1421         ---help---
1422           Say Y to include the NWFPE floating point emulator in the kernel.
1423           This is necessary to run most binaries. Linux does not currently
1424           support floating point hardware so you need to say Y here even if
1425           your machine has an FPA or floating point co-processor podule.
1426
1427           You may say N here if you are going to load the Acorn FPEmulator
1428           early in the bootup.
1429
1430 config FPE_NWFPE_XP
1431         bool "Support extended precision"
1432         depends on FPE_NWFPE
1433         help
1434           Say Y to include 80-bit support in the kernel floating-point
1435           emulator.  Otherwise, only 32 and 64-bit support is compiled in.
1436           Note that gcc does not generate 80-bit operations by default,
1437           so in most cases this option only enlarges the size of the
1438           floating point emulator without any good reason.
1439
1440           You almost surely want to say N here.
1441
1442 config FPE_FASTFPE
1443         bool "FastFPE math emulation (EXPERIMENTAL)"
1444         depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
1445         ---help---
1446           Say Y here to include the FAST floating point emulator in the kernel.
1447           This is an experimental much faster emulator which now also has full
1448           precision for the mantissa.  It does not support any exceptions.
1449           It is very simple, and approximately 3-6 times faster than NWFPE.
1450
1451           It should be sufficient for most programs.  It may be not suitable
1452           for scientific calculations, but you have to check this for yourself.
1453           If you do not feel you need a faster FP emulation you should better
1454           choose NWFPE.
1455
1456 config VFP
1457         bool "VFP-format floating point maths"
1458         depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
1459         help
1460           Say Y to include VFP support code in the kernel. This is needed
1461           if your hardware includes a VFP unit.
1462
1463           Please see <file:Documentation/arm/VFP/release-notes.txt> for
1464           release notes and additional status information.
1465
1466           Say N if your target does not have VFP hardware.
1467
1468 config VFPv3
1469         bool
1470         depends on VFP
1471         default y if CPU_V7
1472
1473 config NEON
1474         bool "Advanced SIMD (NEON) Extension support"
1475         depends on VFPv3 && CPU_V7
1476         help
1477           Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1478           Extension.
1479
1480 endmenu
1481
1482 menu "Userspace binary formats"
1483
1484 source "fs/Kconfig.binfmt"
1485
1486 config ARTHUR
1487         tristate "RISC OS personality"
1488         depends on !AEABI
1489         help
1490           Say Y here to include the kernel code necessary if you want to run
1491           Acorn RISC OS/Arthur binaries under Linux. This code is still very
1492           experimental; if this sounds frightening, say N and sleep in peace.
1493           You can also say M here to compile this support as a module (which
1494           will be called arthur).
1495
1496 endmenu
1497
1498 menu "Power management options"
1499
1500 source "kernel/power/Kconfig"
1501
1502 config ARCH_SUSPEND_POSSIBLE
1503         def_bool y
1504
1505 endmenu
1506
1507 source "net/Kconfig"
1508
1509 source "drivers/Kconfig"
1510
1511 source "fs/Kconfig"
1512
1513 source "arch/arm/Kconfig.debug"
1514
1515 source "security/Kconfig"
1516
1517 source "crypto/Kconfig"
1518
1519 source "lib/Kconfig"