arch/arm/Kconfig

   1 #
   2 # For a description of the syntax of this configuration file,
   3 # see Documentation/kbuild/kconfig-language.txt.
   4 #
   5
   6 mainmenu "Linux Kernel Configuration"
   7
   8 config ARM
   9         bool
  10         default y
  11         select HAVE_AOUT
  12         select HAVE_IDE
  13         select RTC_LIB
  14         select SYS_SUPPORTS_APM_EMULATION
  15         select HAVE_OPROFILE
  16         select HAVE_ARCH_KGDB
  17         select HAVE_KPROBES if (!XIP_KERNEL)
  18         select HAVE_KRETPROBES if (HAVE_KPROBES)
  19         select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
  20         select HAVE_GENERIC_DMA_COHERENT
  21         help
  22           The ARM series is a line of low-power-consumption RISC chip designs
  23           licensed by ARM Ltd and targeted at embedded applications and
  24           handhelds such as the Compaq IPAQ.  ARM-based PCs are no longer
  25           manufactured, but legacy ARM-based PC hardware remains popular in
  26           Europe.  There is an ARM Linux project with a web page at
  27           <http://www.arm.linux.org.uk/>.
  28
  29 config HAVE_PWM
  30         bool
  31
  32 config SYS_SUPPORTS_APM_EMULATION
  33         bool
  34
  35 config GENERIC_GPIO
  36         bool
  37         default n
  38
  39 config GENERIC_TIME
  40         bool
  41         default n
  42
  43 config GENERIC_CLOCKEVENTS
  44         bool
  45         default n
  46
  47 config GENERIC_CLOCKEVENTS_BROADCAST
  48         bool
  49         depends on GENERIC_CLOCKEVENTS
  50         default y if SMP && !LOCAL_TIMERS
  51
  52 config MMU
  53         bool
  54         default y
  55
  56 config NO_IOPORT
  57         bool
  58         default n
  59
  60 config EISA
  61         bool
  62         ---help---
  63           The Extended Industry Standard Architecture (EISA) bus was
  64           developed as an open alternative to the IBM MicroChannel bus.
  65
  66           The EISA bus provided some of the features of the IBM MicroChannel
  67           bus while maintaining backward compatibility with cards made for
  68           the older ISA bus.  The EISA bus saw limited use between 1988 and
  69           1995 when it was made obsolete by the PCI bus.
  70
  71           Say Y here if you are building a kernel for an EISA-based machine.
  72
  73           Otherwise, say N.
  74
  75 config SBUS
  76         bool
  77
  78 config MCA
  79         bool
  80         help
  81           MicroChannel Architecture is found in some IBM PS/2 machines and
  82           laptops.  It is a bus system similar to PCI or ISA. See
  83           <file:Documentation/mca.txt> (and especially the web page given
  84           there) before attempting to build an MCA bus kernel.
  85
  86 config GENERIC_HARDIRQS
  87         bool
  88         default y
  89
  90 config STACKTRACE_SUPPORT
  91         bool
  92         default y
  93
  94 config HAVE_LATENCYTOP_SUPPORT
  95         bool
  96         depends on !SMP
  97         default y
  98
  99 config LOCKDEP_SUPPORT
 100         bool
 101         default y
 102
 103 config TRACE_IRQFLAGS_SUPPORT
 104         bool
 105         default y
 106
 107 config HARDIRQS_SW_RESEND
 108         bool
 109         default y
 110
 111 config GENERIC_IRQ_PROBE
 112         bool
 113         default y
 114
 115 config GENERIC_LOCKBREAK
 116         bool
 117         default y
 118         depends on SMP && PREEMPT
 119
 120 config RWSEM_GENERIC_SPINLOCK
 121         bool
 122         default y
 123
 124 config RWSEM_XCHGADD_ALGORITHM
 125         bool
 126
 127 config ARCH_HAS_ILOG2_U32
 128         bool
 129         default n
 130
 131 config ARCH_HAS_ILOG2_U64
 132         bool
 133         default n
 134
 135 config GENERIC_HWEIGHT
 136         bool
 137         default y
 138
 139 config GENERIC_CALIBRATE_DELAY
 140         bool
 141         default y
 142
 143 config ARCH_MAY_HAVE_PC_FDC
 144         bool
 145
 146 config ZONE_DMA
 147         bool
 148
 149 config GENERIC_ISA_DMA
 150         bool
 151
 152 config FIQ
 153         bool
 154
 155 config ARCH_MTD_XIP
 156         bool
 157
 158 config GENERIC_HARDIRQS_NO__DO_IRQ
 159         bool
 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 choice
 199         prompt "ARM system type"
 200         default ARCH_VERSATILE
 201
 202 config ARCH_AAEC2000
 203         bool "Agilent AAEC-2000 based"
 204         select CPU_ARM920T
 205         select ARM_AMBA
 206         select HAVE_CLK
 207         help
 208           This enables support for systems based on the Agilent AAEC-2000
 209
 210 config ARCH_INTEGRATOR
 211         bool "ARM Ltd. Integrator family"
 212         select ARM_AMBA
 213         select HAVE_CLK
 214         select COMMON_CLKDEV
 215         select ICST525
 216         help
 217           Support for ARM's Integrator platform.
 218
 219 config ARCH_REALVIEW
 220         bool "ARM Ltd. RealView family"
 221         select ARM_AMBA
 222         select HAVE_CLK
 223         select COMMON_CLKDEV
 224         select ICST307
 225         select GENERIC_TIME
 226         select GENERIC_CLOCKEVENTS
 227         help
 228           This enables support for ARM Ltd RealView boards.
 229
 230 config ARCH_VERSATILE
 231         bool "ARM Ltd. Versatile family"
 232         select ARM_AMBA
 233         select ARM_VIC
 234         select HAVE_CLK
 235         select COMMON_CLKDEV
 236         select ICST307
 237         select GENERIC_TIME
 238         select GENERIC_CLOCKEVENTS
 239         help
 240           This enables support for ARM Ltd Versatile board.
 241
 242 config ARCH_AT91
 243         bool "Atmel AT91"
 244         select GENERIC_GPIO
 245         select HAVE_CLK
 246         help
 247           This enables support for systems based on the Atmel AT91RM9200,
 248           AT91SAM9 and AT91CAP9 processors.
 249
 250 config ARCH_CLPS711X
 251         bool "Cirrus Logic CLPS711x/EP721x-based"
 252         select CPU_ARM720T
 253         help
 254           Support for Cirrus Logic 711x/721x based boards.
 255
 256 config ARCH_EBSA110
 257         bool "EBSA-110"
 258         select CPU_SA110
 259         select ISA
 260         select NO_IOPORT
 261         help
 262           This is an evaluation board for the StrongARM processor available
 263           from Digital. It has limited hardware on-board, including an
 264           Ethernet interface, two PCMCIA sockets, two serial ports and a
 265           parallel port.
 266
 267 config ARCH_EP93XX
 268         bool "EP93xx-based"
 269         select CPU_ARM920T
 270         select ARM_AMBA
 271         select ARM_VIC
 272         select GENERIC_GPIO
 273         select HAVE_CLK
 274         select COMMON_CLKDEV
 275         select ARCH_REQUIRE_GPIOLIB
 276         help
 277           This enables support for the Cirrus EP93xx series of CPUs.
 278
 279 config ARCH_FOOTBRIDGE
 280         bool "FootBridge"
 281         select CPU_SA110
 282         select FOOTBRIDGE
 283         help
 284           Support for systems based on the DC21285 companion chip
 285           ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
 286
 287 config ARCH_NETX
 288         bool "Hilscher NetX based"
 289         select CPU_ARM926T
 290         select ARM_VIC
 291         help
 292           This enables support for systems based on the Hilscher NetX Soc
 293
 294 config ARCH_H720X
 295         bool "Hynix HMS720x-based"
 296         select CPU_ARM720T
 297         select ISA_DMA_API
 298         help
 299           This enables support for systems based on the Hynix HMS720x
 300
 301 config ARCH_IMX
 302         bool "IMX"
 303         select CPU_ARM920T
 304         select GENERIC_GPIO
 305         select GENERIC_TIME
 306         select GENERIC_CLOCKEVENTS
 307         help
 308           Support for Motorola's i.MX family of processors (MX1, MXL).
 309
 310 config ARCH_IOP13XX
 311         bool "IOP13xx-based"
 312         depends on MMU
 313         select CPU_XSC3
 314         select PLAT_IOP
 315         select PCI
 316         select ARCH_SUPPORTS_MSI
 317         select VMSPLIT_1G
 318         help
 319           Support for Intel's IOP13XX (XScale) family of processors.
 320
 321 config ARCH_IOP32X
 322         bool "IOP32x-based"
 323         depends on MMU
 324         select CPU_XSCALE
 325         select PLAT_IOP
 326         select PCI
 327         select GENERIC_GPIO
 328         select ARCH_REQUIRE_GPIOLIB
 329         help
 330           Support for Intel's 80219 and IOP32X (XScale) family of
 331           processors.
 332
 333 config ARCH_IOP33X
 334         bool "IOP33x-based"
 335         depends on MMU
 336         select CPU_XSCALE
 337         select PLAT_IOP
 338         select PCI
 339         select GENERIC_GPIO
 340         select ARCH_REQUIRE_GPIOLIB
 341         help
 342           Support for Intel's IOP33X (XScale) family of processors.
 343
 344 config ARCH_IXP23XX
 345         bool "IXP23XX-based"
 346         depends on MMU
 347         select CPU_XSC3
 348         select PCI
 349         help
 350           Support for Intel's IXP23xx (XScale) family of processors.
 351
 352 config ARCH_IXP2000
 353         bool "IXP2400/2800-based"
 354         depends on MMU
 355         select CPU_XSCALE
 356         select PCI
 357         help
 358           Support for Intel's IXP2400/2800 (XScale) family of processors.
 359
 360 config ARCH_IXP4XX
 361         bool "IXP4xx-based"
 362         depends on MMU
 363         select CPU_XSCALE
 364         select GENERIC_GPIO
 365         select GENERIC_TIME
 366         select GENERIC_CLOCKEVENTS
 367         select DMABOUNCE if PCI
 368         help
 369           Support for Intel's IXP4XX (XScale) family of processors.
 370
 371 config ARCH_L7200
 372         bool "LinkUp-L7200"
 373         select CPU_ARM720T
 374         select FIQ
 375         help
 376           Say Y here if you intend to run this kernel on a LinkUp Systems
 377           L7200 Software Development Board which uses an ARM720T processor.
 378           Information on this board can be obtained at:
 379
 380           <http://www.linkupsys.com/>
 381
 382           If you have any questions or comments about the Linux kernel port
 383           to this board, send e-mail to <sjhill@cotw.com>.
 384
 385 config ARCH_KIRKWOOD
 386         bool "Marvell Kirkwood"
 387         select CPU_FEROCEON
 388         select PCI
 389         select GENERIC_TIME
 390         select GENERIC_CLOCKEVENTS
 391         select PLAT_ORION
 392         help
 393           Support for the following Marvell Kirkwood series SoCs:
 394           88F6180, 88F6192 and 88F6281.
 395
 396 config ARCH_KS8695
 397         bool "Micrel/Kendin KS8695"
 398         select CPU_ARM922T
 399         select GENERIC_GPIO
 400         help
 401           Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
 402           System-on-Chip devices.
 403
 404 config ARCH_NS9XXX
 405         bool "NetSilicon NS9xxx"
 406         select CPU_ARM926T
 407         select GENERIC_GPIO
 408         select GENERIC_TIME
 409         select GENERIC_CLOCKEVENTS
 410         select HAVE_CLK
 411         help
 412           Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
 413           System.
 414
 415           <http://www.digi.com/products/microprocessors/index.jsp>
 416
 417 config ARCH_LOKI
 418         bool "Marvell Loki (88RC8480)"
 419         select CPU_FEROCEON
 420         select GENERIC_TIME
 421         select GENERIC_CLOCKEVENTS
 422         select PLAT_ORION
 423         help
 424           Support for the Marvell Loki (88RC8480) SoC.
 425
 426 config ARCH_MV78XX0
 427         bool "Marvell MV78xx0"
 428         select CPU_FEROCEON
 429         select PCI
 430         select GENERIC_TIME
 431         select GENERIC_CLOCKEVENTS
 432         select PLAT_ORION
 433         help
 434           Support for the following Marvell MV78xx0 series SoCs:
 435           MV781x0, MV782x0.
 436
 437 config ARCH_MXC
 438         bool "Freescale MXC/iMX-based"
 439         select GENERIC_TIME
 440         select GENERIC_CLOCKEVENTS
 441         select ARCH_MTD_XIP
 442         select GENERIC_GPIO
 443         select ARCH_REQUIRE_GPIOLIB
 444         help
 445           Support for Freescale MXC/iMX-based family of processors
 446
 447 config ARCH_ORION5X
 448         bool "Marvell Orion"
 449         depends on MMU
 450         select CPU_FEROCEON
 451         select PCI
 452         select GENERIC_GPIO
 453         select GENERIC_TIME
 454         select GENERIC_CLOCKEVENTS
 455         select PLAT_ORION
 456         help
 457           Support for the following Marvell Orion 5x series SoCs:
 458           Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
 459           Orion-2 (5281), Orion-1-90 (6183).
 460
 461 config ARCH_PNX4008
 462         bool "Philips Nexperia PNX4008 Mobile"
 463         select CPU_ARM926T
 464         select HAVE_CLK
 465         help
 466           This enables support for Philips PNX4008 mobile platform.
 467
 468 config ARCH_PXA
 469         bool "PXA2xx/PXA3xx-based"
 470         depends on MMU
 471         select ARCH_MTD_XIP
 472         select GENERIC_GPIO
 473         select HAVE_CLK
 474         select COMMON_CLKDEV
 475         select ARCH_REQUIRE_GPIOLIB
 476         select GENERIC_TIME
 477         select GENERIC_CLOCKEVENTS
 478         select TICK_ONESHOT
 479         help
 480           Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
 481
 482 config ARCH_RPC
 483         bool "RiscPC"
 484         select ARCH_ACORN
 485         select FIQ
 486         select TIMER_ACORN
 487         select ARCH_MAY_HAVE_PC_FDC
 488         select HAVE_PATA_PLATFORM
 489         select ISA_DMA_API
 490         select NO_IOPORT
 491         select ARCH_SPARSEMEM_ENABLE
 492         help
 493           On the Acorn Risc-PC, Linux can support the internal IDE disk and
 494           CD-ROM interface, serial and parallel port, and the floppy drive.
 495
 496 config ARCH_SA1100
 497         bool "SA1100-based"
 498         select CPU_SA1100
 499         select ISA
 500         select ARCH_SPARSEMEM_ENABLE
 501         select ARCH_MTD_XIP
 502         select GENERIC_GPIO
 503         select GENERIC_TIME
 504         select GENERIC_CLOCKEVENTS
 505         select HAVE_CLK
 506         select TICK_ONESHOT
 507         select ARCH_REQUIRE_GPIOLIB
 508         help
 509           Support for StrongARM 11x0 based boards.
 510
 511 config ARCH_S3C2410
 512         bool "Samsung S3C2410, S3C2412, S3C2413, S3C2440, S3C2442, S3C2443"
 513         select GENERIC_GPIO
 514         select HAVE_CLK
 515         help
 516           Samsung S3C2410X CPU based systems, such as the Simtec Electronics
 517           BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
 518           the Samsung SMDK2410 development board (and derivatives).
 519
 520 config ARCH_SHARK
 521         bool "Shark"
 522         select CPU_SA110
 523         select ISA
 524         select ISA_DMA
 525         select ZONE_DMA
 526         select PCI
 527         help
 528           Support for the StrongARM based Digital DNARD machine, also known
 529           as "Shark" (<http://www.shark-linux.de/shark.html>).
 530
 531 config ARCH_LH7A40X
 532         bool "Sharp LH7A40X"
 533         select CPU_ARM922T
 534         select ARCH_DISCONTIGMEM_ENABLE if !LH7A40X_CONTIGMEM
 535         select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
 536         help
 537           Say Y here for systems based on one of the Sharp LH7A40X
 538           System on a Chip processors.  These CPUs include an ARM922T
 539           core with a wide array of integrated devices for
 540           hand-held and low-power applications.
 541
 542 config ARCH_DAVINCI
 543         bool "TI DaVinci"
 544         select CPU_ARM926T
 545         select GENERIC_TIME
 546         select GENERIC_CLOCKEVENTS
 547         select GENERIC_GPIO
 548         select ARCH_REQUIRE_GPIOLIB
 549         select HAVE_CLK
 550         select ZONE_DMA
 551         help
 552           Support for TI's DaVinci platform.
 553
 554 config ARCH_OMAP
 555         bool "TI OMAP"
 556         select GENERIC_GPIO
 557         select HAVE_CLK
 558         select ARCH_REQUIRE_GPIOLIB
 559         select GENERIC_TIME
 560         select GENERIC_CLOCKEVENTS
 561         help
 562           Support for TI's OMAP platform (OMAP1 and OMAP2).
 563
 564 config ARCH_MSM
 565         bool "Qualcomm MSM"
 566         select CPU_V6
 567         select GENERIC_TIME
 568         select GENERIC_CLOCKEVENTS
 569         help
 570           Support for Qualcomm MSM7K based systems.  This runs on the ARM11
 571           apps processor of the MSM7K and depends on a shared memory
 572           interface to the ARM9 modem processor which runs the baseband stack
 573           and controls some vital subsystems (clock and power control, etc).
 574
 575 config ARCH_W90X900
 576         bool "Nuvoton W90X900 CPU"
 577         select CPU_ARM926T
 578         help
 579                 Support for Nuvoton (Winbond logic dept.) ARM9 processor,You
 580                 can login www.mcuos.com or www.nuvoton.com to know more.
 581
 582 endchoice
 583
 584 source "arch/arm/mach-clps711x/Kconfig"
 585
 586 source "arch/arm/mach-ep93xx/Kconfig"
 587
 588 source "arch/arm/mach-footbridge/Kconfig"
 589
 590 source "arch/arm/mach-integrator/Kconfig"
 591
 592 source "arch/arm/mach-iop32x/Kconfig"
 593
 594 source "arch/arm/mach-iop33x/Kconfig"
 595
 596 source "arch/arm/mach-iop13xx/Kconfig"
 597
 598 source "arch/arm/mach-ixp4xx/Kconfig"
 599
 600 source "arch/arm/mach-ixp2000/Kconfig"
 601
 602 source "arch/arm/mach-ixp23xx/Kconfig"
 603
 604 source "arch/arm/mach-loki/Kconfig"
 605
 606 source "arch/arm/mach-mv78xx0/Kconfig"
 607
 608 source "arch/arm/mach-pxa/Kconfig"
 609
 610 source "arch/arm/mach-sa1100/Kconfig"
 611
 612 source "arch/arm/plat-omap/Kconfig"
 613
 614 source "arch/arm/mach-omap1/Kconfig"
 615
 616 source "arch/arm/mach-omap2/Kconfig"
 617
 618 source "arch/arm/mach-orion5x/Kconfig"
 619
 620 source "arch/arm/mach-kirkwood/Kconfig"
 621
 622 source "arch/arm/plat-s3c24xx/Kconfig"
 623 source "arch/arm/plat-s3c/Kconfig"
 624
 625 if ARCH_S3C2410
 626 source "arch/arm/mach-s3c2400/Kconfig"
 627 source "arch/arm/mach-s3c2410/Kconfig"
 628 source "arch/arm/mach-s3c2412/Kconfig"
 629 source "arch/arm/mach-s3c2440/Kconfig"
 630 source "arch/arm/mach-s3c2442/Kconfig"
 631 source "arch/arm/mach-s3c2443/Kconfig"
 632 endif
 633
 634 source "arch/arm/mach-lh7a40x/Kconfig"
 635
 636 source "arch/arm/mach-imx/Kconfig"
 637
 638 source "arch/arm/mach-h720x/Kconfig"
 639
 640 source "arch/arm/mach-versatile/Kconfig"
 641
 642 source "arch/arm/mach-aaec2000/Kconfig"
 643
 644 source "arch/arm/mach-realview/Kconfig"
 645
 646 source "arch/arm/mach-at91/Kconfig"
 647
 648 source "arch/arm/plat-mxc/Kconfig"
 649
 650 source "arch/arm/mach-netx/Kconfig"
 651
 652 source "arch/arm/mach-ns9xxx/Kconfig"
 653
 654 source "arch/arm/mach-davinci/Kconfig"
 655
 656 source "arch/arm/mach-ks8695/Kconfig"
 657
 658 source "arch/arm/mach-msm/Kconfig"
 659
 660 source "arch/arm/mach-w90x900/Kconfig"
 661
 662 # Definitions to make life easier
 663 config ARCH_ACORN
 664         bool
 665
 666 config PLAT_IOP
 667         bool
 668
 669 config PLAT_ORION
 670         bool
 671
 672 source arch/arm/mm/Kconfig
 673
 674 config IWMMXT
 675         bool "Enable iWMMXt support"
 676         depends on CPU_XSCALE || CPU_XSC3
 677         default y if PXA27x || PXA3xx
 678         help
 679           Enable support for iWMMXt context switching at run time if
 680           running on a CPU that supports it.
 681
 682 #  bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
 683 config XSCALE_PMU
 684         bool
 685         depends on CPU_XSCALE && !XSCALE_PMU_TIMER
 686         default y
 687
 688 if !MMU
 689 source "arch/arm/Kconfig-nommu"
 690 endif
 691
 692 endmenu
 693
 694 source "arch/arm/common/Kconfig"
 695
 696 config FORCE_MAX_ZONEORDER
 697         int
 698         depends on SA1111
 699         default "9"
 700
 701 menu "Bus support"
 702
 703 config ARM_AMBA
 704         bool
 705
 706 config ISA
 707         bool
 708         help
 709           Find out whether you have ISA slots on your motherboard.  ISA is the
 710           name of a bus system, i.e. the way the CPU talks to the other stuff
 711           inside your box.  Other bus systems are PCI, EISA, MicroChannel
 712           (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
 713           newer boards don't support it.  If you have ISA, say Y, otherwise N.
 714
 715 # Select ISA DMA controller support
 716 config ISA_DMA
 717         bool
 718         select ISA_DMA_API
 719
 720 # Select ISA DMA interface
 721 config ISA_DMA_API
 722         bool
 723
 724 config PCI
 725         bool "PCI support" if ARCH_INTEGRATOR_AP || ARCH_VERSATILE_PB || ARCH_IXP4XX || ARCH_KS8695 || MACH_ARMCORE
 726         help
 727           Find out whether you have a PCI motherboard. PCI is the name of a
 728           bus system, i.e. the way the CPU talks to the other stuff inside
 729           your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
 730           VESA. If you have PCI, say Y, otherwise N.
 731
 732 config PCI_SYSCALL
 733         def_bool PCI
 734
 735 # Select the host bridge type
 736 config PCI_HOST_VIA82C505
 737         bool
 738         depends on PCI && ARCH_SHARK
 739         default y
 740
 741 config PCI_HOST_ITE8152
 742         bool
 743         depends on PCI && MACH_ARMCORE
 744         default y
 745         select DMABOUNCE
 746
 747 source "drivers/pci/Kconfig"
 748
 749 source "drivers/pcmcia/Kconfig"
 750
 751 endmenu
 752
 753 menu "Kernel Features"
 754
 755 source "kernel/time/Kconfig"
 756
 757 config SMP
 758         bool "Symmetric Multi-Processing (EXPERIMENTAL)"
 759         depends on EXPERIMENTAL && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP)
 760         select USE_GENERIC_SMP_HELPERS
 761         help
 762           This enables support for systems with more than one CPU. If you have
 763           a system with only one CPU, like most personal computers, say N. If
 764           you have a system with more than one CPU, say Y.
 765
 766           If you say N here, the kernel will run on single and multiprocessor
 767           machines, but will use only one CPU of a multiprocessor machine. If
 768           you say Y here, the kernel will run on many, but not all, single
 769           processor machines. On a single processor machine, the kernel will
 770           run faster if you say N here.
 771
 772           See also <file:Documentation/i386/IO-APIC.txt>,
 773           <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
 774           <http://www.linuxdoc.org/docs.html#howto>.
 775
 776           If you don't know what to do here, say N.
 777
 778 choice
 779         prompt "Memory split"
 780         default VMSPLIT_3G
 781         help
 782           Select the desired split between kernel and user memory.
 783
 784           If you are not absolutely sure what you are doing, leave this
 785           option alone!
 786
 787         config VMSPLIT_3G
 788                 bool "3G/1G user/kernel split"
 789         config VMSPLIT_2G
 790                 bool "2G/2G user/kernel split"
 791         config VMSPLIT_1G
 792                 bool "1G/3G user/kernel split"
 793 endchoice
 794
 795 config PAGE_OFFSET
 796         hex
 797         default 0x40000000 if VMSPLIT_1G
 798         default 0x80000000 if VMSPLIT_2G
 799         default 0xC0000000
 800
 801 config NR_CPUS
 802         int "Maximum number of CPUs (2-32)"
 803         range 2 32
 804         depends on SMP
 805         default "4"
 806
 807 config HOTPLUG_CPU
 808         bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
 809         depends on SMP && HOTPLUG && EXPERIMENTAL
 810         help
 811           Say Y here to experiment with turning CPUs off and on.  CPUs
 812           can be controlled through /sys/devices/system/cpu.
 813
 814 config LOCAL_TIMERS
 815         bool "Use local timer interrupts"
 816         depends on SMP && (REALVIEW_EB_ARM11MP || MACH_REALVIEW_PB11MP || REALVIEW_EB_A9MP)
 817         default y
 818         help
 819           Enable support for local timers on SMP platforms, rather then the
 820           legacy IPI broadcast method.  Local timers allows the system
 821           accounting to be spread across the timer interval, preventing a
 822           "thundering herd" at every timer tick.
 823
 824 config PREEMPT
 825         bool "Preemptible Kernel (EXPERIMENTAL)"
 826         depends on EXPERIMENTAL
 827         help
 828           This option reduces the latency of the kernel when reacting to
 829           real-time or interactive events by allowing a low priority process to
 830           be preempted even if it is in kernel mode executing a system call.
 831           This allows applications to run more reliably even when the system is
 832           under load.
 833
 834           Say Y here if you are building a kernel for a desktop, embedded
 835           or real-time system.  Say N if you are unsure.
 836
 837 config HZ
 838         int
 839         default 128 if ARCH_L7200
 840         default 200 if ARCH_EBSA110 || ARCH_S3C2410
 841         default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
 842         default AT91_TIMER_HZ if ARCH_AT91
 843         default 100
 844
 845 config AEABI
 846         bool "Use the ARM EABI to compile the kernel"
 847         help
 848           This option allows for the kernel to be compiled using the latest
 849           ARM ABI (aka EABI).  This is only useful if you are using a user
 850           space environment that is also compiled with EABI.
 851
 852           Since there are major incompatibilities between the legacy ABI and
 853           EABI, especially with regard to structure member alignment, this
 854           option also changes the kernel syscall calling convention to
 855           disambiguate both ABIs and allow for backward compatibility support
 856           (selected with CONFIG_OABI_COMPAT).
 857
 858           To use this you need GCC version 4.0.0 or later.
 859
 860 config OABI_COMPAT
 861         bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
 862         depends on AEABI && EXPERIMENTAL
 863         default y
 864         help
 865           This option preserves the old syscall interface along with the
 866           new (ARM EABI) one. It also provides a compatibility layer to
 867           intercept syscalls that have structure arguments which layout
 868           in memory differs between the legacy ABI and the new ARM EABI
 869           (only for non "thumb" binaries). This option adds a tiny
 870           overhead to all syscalls and produces a slightly larger kernel.
 871           If you know you'll be using only pure EABI user space then you
 872           can say N here. If this option is not selected and you attempt
 873           to execute a legacy ABI binary then the result will be
 874           UNPREDICTABLE (in fact it can be predicted that it won't work
 875           at all). If in doubt say Y.
 876
 877 config ARCH_FLATMEM_HAS_HOLES
 878         bool
 879         default y
 880         depends on FLATMEM
 881
 882 # Discontigmem is deprecated
 883 config ARCH_DISCONTIGMEM_ENABLE
 884         bool
 885
 886 config ARCH_SPARSEMEM_ENABLE
 887         bool
 888
 889 config ARCH_SPARSEMEM_DEFAULT
 890         def_bool ARCH_SPARSEMEM_ENABLE
 891
 892 config ARCH_SELECT_MEMORY_MODEL
 893         def_bool ARCH_DISCONTIGMEM_ENABLE && ARCH_SPARSEMEM_ENABLE
 894
 895 config NODES_SHIFT
 896         int
 897         default "4" if ARCH_LH7A40X
 898         default "2"
 899         depends on NEED_MULTIPLE_NODES
 900
 901 source "mm/Kconfig"
 902
 903 config LEDS
 904         bool "Timer and CPU usage LEDs"
 905         depends on ARCH_CDB89712 || ARCH_EBSA110 || \
 906                    ARCH_EBSA285 || ARCH_IMX || ARCH_INTEGRATOR || \
 907                    ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
 908                    ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
 909                    ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
 910                    ARCH_AT91 || ARCH_DAVINCI || \
 911                    ARCH_KS8695 || MACH_RD88F5182
 912         help
 913           If you say Y here, the LEDs on your machine will be used
 914           to provide useful information about your current system status.
 915
 916           If you are compiling a kernel for a NetWinder or EBSA-285, you will
 917           be able to select which LEDs are active using the options below. If
 918           you are compiling a kernel for the EBSA-110 or the LART however, the
 919           red LED will simply flash regularly to indicate that the system is
 920           still functional. It is safe to say Y here if you have a CATS
 921           system, but the driver will do nothing.
 922
 923 config LEDS_TIMER
 924         bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
 925                             OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
 926                             || MACH_OMAP_PERSEUS2
 927         depends on LEDS
 928         depends on !GENERIC_CLOCKEVENTS
 929         default y if ARCH_EBSA110
 930         help
 931           If you say Y here, one of the system LEDs (the green one on the
 932           NetWinder, the amber one on the EBSA285, or the red one on the LART)
 933           will flash regularly to indicate that the system is still
 934           operational. This is mainly useful to kernel hackers who are
 935           debugging unstable kernels.
 936
 937           The LART uses the same LED for both Timer LED and CPU usage LED
 938           functions. You may choose to use both, but the Timer LED function
 939           will overrule the CPU usage LED.
 940
 941 config LEDS_CPU
 942         bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
 943                         !ARCH_OMAP) \
 944                         || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
 945                         || MACH_OMAP_PERSEUS2
 946         depends on LEDS
 947         help
 948           If you say Y here, the red LED will be used to give a good real
 949           time indication of CPU usage, by lighting whenever the idle task
 950           is not currently executing.
 951
 952           The LART uses the same LED for both Timer LED and CPU usage LED
 953           functions. You may choose to use both, but the Timer LED function
 954           will overrule the CPU usage LED.
 955
 956 config ALIGNMENT_TRAP
 957         bool
 958         depends on CPU_CP15_MMU
 959         default y if !ARCH_EBSA110
 960         help
 961           ARM processors cannot fetch/store information which is not
 962           naturally aligned on the bus, i.e., a 4 byte fetch must start at an
 963           address divisible by 4. On 32-bit ARM processors, these non-aligned
 964           fetch/store instructions will be emulated in software if you say
 965           here, which has a severe performance impact. This is necessary for
 966           correct operation of some network protocols. With an IP-only
 967           configuration it is safe to say N, otherwise say Y.
 968
 969 endmenu
 970
 971 menu "Boot options"
 972
 973 # Compressed boot loader in ROM.  Yes, we really want to ask about
 974 # TEXT and BSS so we preserve their values in the config files.
 975 config ZBOOT_ROM_TEXT
 976         hex "Compressed ROM boot loader base address"
 977         default "0"
 978         help
 979           The physical address at which the ROM-able zImage is to be
 980           placed in the target.  Platforms which normally make use of
 981           ROM-able zImage formats normally set this to a suitable
 982           value in their defconfig file.
 983
 984           If ZBOOT_ROM is not enabled, this has no effect.
 985
 986 config ZBOOT_ROM_BSS
 987         hex "Compressed ROM boot loader BSS address"
 988         default "0"
 989         help
 990           The base address of an area of read/write memory in the target
 991           for the ROM-able zImage which must be available while the
 992           decompressor is running. It must be large enough to hold the
 993           entire decompressed kernel plus an additional 128 KiB.
 994           Platforms which normally make use of ROM-able zImage formats
 995           normally set this to a suitable value in their defconfig file.
 996
 997           If ZBOOT_ROM is not enabled, this has no effect.
 998
 999 config ZBOOT_ROM
1000         bool "Compressed boot loader in ROM/flash"
1001         depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1002         help
1003           Say Y here if you intend to execute your compressed kernel image
1004           (zImage) directly from ROM or flash.  If unsure, say N.
1005
1006 config CMDLINE
1007         string "Default kernel command string"
1008         default ""
1009         help
1010           On some architectures (EBSA110 and CATS), there is currently no way
1011           for the boot loader to pass arguments to the kernel. For these
1012           architectures, you should supply some command-line options at build
1013           time by entering them here. As a minimum, you should specify the
1014           memory size and the root device (e.g., mem=64M root=/dev/nfs).
1015
1016 config XIP_KERNEL
1017         bool "Kernel Execute-In-Place from ROM"
1018         depends on !ZBOOT_ROM
1019         help
1020           Execute-In-Place allows the kernel to run from non-volatile storage
1021           directly addressable by the CPU, such as NOR flash. This saves RAM
1022           space since the text section of the kernel is not loaded from flash
1023           to RAM.  Read-write sections, such as the data section and stack,
1024           are still copied to RAM.  The XIP kernel is not compressed since
1025           it has to run directly from flash, so it will take more space to
1026           store it.  The flash address used to link the kernel object files,
1027           and for storing it, is configuration dependent. Therefore, if you
1028           say Y here, you must know the proper physical address where to
1029           store the kernel image depending on your own flash memory usage.
1030
1031           Also note that the make target becomes "make xipImage" rather than
1032           "make zImage" or "make Image".  The final kernel binary to put in
1033           ROM memory will be arch/arm/boot/xipImage.
1034
1035           If unsure, say N.
1036
1037 config XIP_PHYS_ADDR
1038         hex "XIP Kernel Physical Location"
1039         depends on XIP_KERNEL
1040         default "0x00080000"
1041         help
1042           This is the physical address in your flash memory the kernel will
1043           be linked for and stored to.  This address is dependent on your
1044           own flash usage.
1045
1046 config KEXEC
1047         bool "Kexec system call (EXPERIMENTAL)"
1048         depends on EXPERIMENTAL
1049         help
1050           kexec is a system call that implements the ability to shutdown your
1051           current kernel, and to start another kernel.  It is like a reboot
1052           but it is independent of the system firmware.   And like a reboot
1053           you can start any kernel with it, not just Linux.
1054
1055           It is an ongoing process to be certain the hardware in a machine
1056           is properly shutdown, so do not be surprised if this code does not
1057           initially work for you.  It may help to enable device hotplugging
1058           support.
1059
1060 config ATAGS_PROC
1061         bool "Export atags in procfs"
1062         depends on KEXEC
1063         default y
1064         help
1065           Should the atags used to boot the kernel be exported in an "atags"
1066           file in procfs. Useful with kexec.
1067
1068 endmenu
1069
1070 menu "CPU Power Management"
1071
1072 if (ARCH_SA1100 || ARCH_INTEGRATOR || ARCH_OMAP || ARCH_IMX || ARCH_PXA)
1073
1074 source "drivers/cpufreq/Kconfig"
1075
1076 config CPU_FREQ_SA1100
1077         bool
1078         depends on CPU_FREQ && (SA1100_H3100 || SA1100_H3600 || SA1100_H3800 || SA1100_LART || SA1100_PLEB || SA1100_BADGE4 || SA1100_HACKKIT)
1079         default y
1080
1081 config CPU_FREQ_SA1110
1082         bool
1083         depends on CPU_FREQ && (SA1100_ASSABET || SA1100_CERF || SA1100_PT_SYSTEM3)
1084         default y
1085
1086 config CPU_FREQ_INTEGRATOR
1087         tristate "CPUfreq driver for ARM Integrator CPUs"
1088         depends on ARCH_INTEGRATOR && CPU_FREQ
1089         default y
1090         help
1091           This enables the CPUfreq driver for ARM Integrator CPUs.
1092
1093           For details, take a look at <file:Documentation/cpu-freq>.
1094
1095           If in doubt, say Y.
1096
1097 config CPU_FREQ_IMX
1098         tristate "CPUfreq driver for i.MX CPUs"
1099         depends on ARCH_IMX && CPU_FREQ
1100         default n
1101         help
1102           This enables the CPUfreq driver for i.MX CPUs.
1103
1104           If in doubt, say N.
1105
1106 config CPU_FREQ_PXA
1107         bool
1108         depends on CPU_FREQ && ARCH_PXA && PXA25x
1109         default y
1110         select CPU_FREQ_DEFAULT_GOV_USERSPACE
1111
1112 endif
1113
1114 source "drivers/cpuidle/Kconfig"
1115
1116 endmenu
1117
1118 menu "Floating point emulation"
1119
1120 comment "At least one emulation must be selected"
1121
1122 config FPE_NWFPE
1123         bool "NWFPE math emulation"
1124         depends on !AEABI || OABI_COMPAT
1125         ---help---
1126           Say Y to include the NWFPE floating point emulator in the kernel.
1127           This is necessary to run most binaries. Linux does not currently
1128           support floating point hardware so you need to say Y here even if
1129           your machine has an FPA or floating point co-processor podule.
1130
1131           You may say N here if you are going to load the Acorn FPEmulator
1132           early in the bootup.
1133
1134 config FPE_NWFPE_XP
1135         bool "Support extended precision"
1136         depends on FPE_NWFPE
1137         help
1138           Say Y to include 80-bit support in the kernel floating-point
1139           emulator.  Otherwise, only 32 and 64-bit support is compiled in.
1140           Note that gcc does not generate 80-bit operations by default,
1141           so in most cases this option only enlarges the size of the
1142           floating point emulator without any good reason.
1143
1144           You almost surely want to say N here.
1145
1146 config FPE_FASTFPE
1147         bool "FastFPE math emulation (EXPERIMENTAL)"
1148         depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
1149         ---help---
1150           Say Y here to include the FAST floating point emulator in the kernel.
1151           This is an experimental much faster emulator which now also has full
1152           precision for the mantissa.  It does not support any exceptions.
1153           It is very simple, and approximately 3-6 times faster than NWFPE.
1154
1155           It should be sufficient for most programs.  It may be not suitable
1156           for scientific calculations, but you have to check this for yourself.
1157           If you do not feel you need a faster FP emulation you should better
1158           choose NWFPE.
1159
1160 config VFP
1161         bool "VFP-format floating point maths"
1162         depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
1163         help
1164           Say Y to include VFP support code in the kernel. This is needed
1165           if your hardware includes a VFP unit.
1166
1167           Please see <file:Documentation/arm/VFP/release-notes.txt> for
1168           release notes and additional status information.
1169
1170           Say N if your target does not have VFP hardware.
1171
1172 config VFPv3
1173         bool
1174         depends on VFP
1175         default y if CPU_V7
1176
1177 config NEON
1178         bool "Advanced SIMD (NEON) Extension support"
1179         depends on VFPv3 && CPU_V7
1180         help
1181           Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1182           Extension.
1183
1184 endmenu
1185
1186 menu "Userspace binary formats"
1187
1188 source "fs/Kconfig.binfmt"
1189
1190 config ARTHUR
1191         tristate "RISC OS personality"
1192         depends on !AEABI
1193         help
1194           Say Y here to include the kernel code necessary if you want to run
1195           Acorn RISC OS/Arthur binaries under Linux. This code is still very
1196           experimental; if this sounds frightening, say N and sleep in peace.
1197           You can also say M here to compile this support as a module (which
1198           will be called arthur).
1199
1200 endmenu
1201
1202 menu "Power management options"
1203
1204 source "kernel/power/Kconfig"
1205
1206 config ARCH_SUSPEND_POSSIBLE
1207         def_bool y
1208
1209 endmenu
1210
1211 source "net/Kconfig"
1212
1213 menu "Device Drivers"
1214
1215 source "drivers/base/Kconfig"
1216
1217 source "drivers/connector/Kconfig"
1218
1219 if ALIGNMENT_TRAP || !CPU_CP15_MMU
1220 source "drivers/mtd/Kconfig"
1221 endif
1222
1223 source "drivers/parport/Kconfig"
1224
1225 source "drivers/pnp/Kconfig"
1226
1227 source "drivers/block/Kconfig"
1228
1229 # misc before ide - BLK_DEV_SGIIOC4 depends on SGI_IOC4
1230
1231 source "drivers/misc/Kconfig"
1232
1233 source "drivers/ide/Kconfig"
1234
1235 source "drivers/scsi/Kconfig"
1236
1237 source "drivers/ata/Kconfig"
1238
1239 source "drivers/md/Kconfig"
1240
1241 source "drivers/message/fusion/Kconfig"
1242
1243 source "drivers/ieee1394/Kconfig"
1244
1245 source "drivers/message/i2o/Kconfig"
1246
1247 source "drivers/net/Kconfig"
1248
1249 source "drivers/isdn/Kconfig"
1250
1251 # input before char - char/joystick depends on it. As does USB.
1252
1253 source "drivers/input/Kconfig"
1254
1255 source "drivers/char/Kconfig"
1256
1257 source "drivers/i2c/Kconfig"
1258
1259 source "drivers/spi/Kconfig"
1260
1261 source "drivers/gpio/Kconfig"
1262
1263 source "drivers/w1/Kconfig"
1264
1265 source "drivers/power/Kconfig"
1266
1267 source "drivers/hwmon/Kconfig"
1268
1269 source "drivers/thermal/Kconfig"
1270
1271 source "drivers/watchdog/Kconfig"
1272
1273 source "drivers/ssb/Kconfig"
1274
1275 #source "drivers/l3/Kconfig"
1276
1277 source "drivers/mfd/Kconfig"
1278
1279 source "drivers/media/Kconfig"
1280
1281 source "drivers/video/Kconfig"
1282
1283 source "sound/Kconfig"
1284
1285 source "drivers/hid/Kconfig"
1286
1287 source "drivers/usb/Kconfig"
1288
1289 source "drivers/uwb/Kconfig"
1290
1291 source "drivers/mmc/Kconfig"
1292
1293 source "drivers/memstick/Kconfig"
1294
1295 source "drivers/accessibility/Kconfig"
1296
1297 source "drivers/leds/Kconfig"
1298
1299 source "drivers/rtc/Kconfig"
1300
1301 source "drivers/dma/Kconfig"
1302
1303 source "drivers/dca/Kconfig"
1304
1305 source "drivers/auxdisplay/Kconfig"
1306
1307 source "drivers/regulator/Kconfig"
1308
1309 source "drivers/uio/Kconfig"
1310
1311 endmenu
1312
1313 source "fs/Kconfig"
1314
1315 source "arch/arm/Kconfig.debug"
1316
1317 source "security/Kconfig"
1318
1319 source "crypto/Kconfig"
1320
1321 source "lib/Kconfig"