arch/arm/Kconfig

   1 config ARM
   2         bool
   3         default y
   4         select HAVE_AOUT
   5         select HAVE_DMA_API_DEBUG
   6         select HAVE_IDE
   7         select HAVE_MEMBLOCK
   8         select RTC_LIB
   9         select SYS_SUPPORTS_APM_EMULATION
  10         select GENERIC_ATOMIC64 if (!CPU_32v6K || !AEABI)
  11         select HAVE_OPROFILE if (HAVE_PERF_EVENTS)
  12         select HAVE_ARCH_KGDB
  13         select HAVE_KPROBES if (!XIP_KERNEL && !THUMB2_KERNEL)
  14         select HAVE_KRETPROBES if (HAVE_KPROBES)
  15         select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
  16         select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
  17         select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
  18         select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
  19         select HAVE_GENERIC_DMA_COHERENT
  20         select HAVE_KERNEL_GZIP
  21         select HAVE_KERNEL_LZO
  22         select HAVE_KERNEL_LZMA
  23         select HAVE_IRQ_WORK
  24         select HAVE_PERF_EVENTS
  25         select PERF_USE_VMALLOC
  26         select HAVE_REGS_AND_STACK_ACCESS_API
  27         select HAVE_HW_BREAKPOINT if (PERF_EVENTS && (CPU_V6 || CPU_V7))
  28         select HAVE_C_RECORDMCOUNT
  29         help
  30           The ARM series is a line of low-power-consumption RISC chip designs
  31           licensed by ARM Ltd and targeted at embedded applications and
  32           handhelds such as the Compaq IPAQ.  ARM-based PCs are no longer
  33           manufactured, but legacy ARM-based PC hardware remains popular in
  34           Europe.  There is an ARM Linux project with a web page at
  35           <http://www.arm.linux.org.uk/>.
  36
  37 config HAVE_PWM
  38         bool
  39
  40 config MIGHT_HAVE_PCI
  41         bool
  42
  43 config SYS_SUPPORTS_APM_EMULATION
  44         bool
  45
  46 config HAVE_SCHED_CLOCK
  47         bool
  48
  49 config GENERIC_GPIO
  50         bool
  51
  52 config ARCH_USES_GETTIMEOFFSET
  53         bool
  54         default n
  55
  56 config GENERIC_CLOCKEVENTS
  57         bool
  58
  59 config GENERIC_CLOCKEVENTS_BROADCAST
  60         bool
  61         depends on GENERIC_CLOCKEVENTS
  62         default y if SMP
  63
  64 config HAVE_TCM
  65         bool
  66         select GENERIC_ALLOCATOR
  67
  68 config HAVE_PROC_CPU
  69         bool
  70
  71 config NO_IOPORT
  72         bool
  73
  74 config EISA
  75         bool
  76         ---help---
  77           The Extended Industry Standard Architecture (EISA) bus was
  78           developed as an open alternative to the IBM MicroChannel bus.
  79
  80           The EISA bus provided some of the features of the IBM MicroChannel
  81           bus while maintaining backward compatibility with cards made for
  82           the older ISA bus.  The EISA bus saw limited use between 1988 and
  83           1995 when it was made obsolete by the PCI bus.
  84
  85           Say Y here if you are building a kernel for an EISA-based machine.
  86
  87           Otherwise, say N.
  88
  89 config SBUS
  90         bool
  91
  92 config MCA
  93         bool
  94         help
  95           MicroChannel Architecture is found in some IBM PS/2 machines and
  96           laptops.  It is a bus system similar to PCI or ISA. See
  97           <file:Documentation/mca.txt> (and especially the web page given
  98           there) before attempting to build an MCA bus kernel.
  99
 100 config GENERIC_HARDIRQS
 101         bool
 102         default y
 103
 104 config STACKTRACE_SUPPORT
 105         bool
 106         default y
 107
 108 config HAVE_LATENCYTOP_SUPPORT
 109         bool
 110         depends on !SMP
 111         default y
 112
 113 config LOCKDEP_SUPPORT
 114         bool
 115         default y
 116
 117 config TRACE_IRQFLAGS_SUPPORT
 118         bool
 119         default y
 120
 121 config HARDIRQS_SW_RESEND
 122         bool
 123         default y
 124
 125 config GENERIC_IRQ_PROBE
 126         bool
 127         default y
 128
 129 config GENERIC_LOCKBREAK
 130         bool
 131         default y
 132         depends on SMP && PREEMPT
 133
 134 config RWSEM_GENERIC_SPINLOCK
 135         bool
 136         default y
 137
 138 config RWSEM_XCHGADD_ALGORITHM
 139         bool
 140
 141 config ARCH_HAS_ILOG2_U32
 142         bool
 143
 144 config ARCH_HAS_ILOG2_U64
 145         bool
 146
 147 config ARCH_HAS_CPUFREQ
 148         bool
 149         help
 150           Internal node to signify that the ARCH has CPUFREQ support
 151           and that the relevant menu configurations are displayed for
 152           it.
 153
 154 config ARCH_HAS_CPU_IDLE_WAIT
 155        def_bool y
 156
 157 config GENERIC_HWEIGHT
 158         bool
 159         default y
 160
 161 config GENERIC_CALIBRATE_DELAY
 162         bool
 163         default y
 164
 165 config ARCH_MAY_HAVE_PC_FDC
 166         bool
 167
 168 config ZONE_DMA
 169         bool
 170
 171 config NEED_DMA_MAP_STATE
 172        def_bool y
 173
 174 config GENERIC_ISA_DMA
 175         bool
 176
 177 config FIQ
 178         bool
 179
 180 config ARCH_MTD_XIP
 181         bool
 182
 183 config GENERIC_HARDIRQS_NO__DO_IRQ
 184         def_bool y
 185
 186 config ARM_L1_CACHE_SHIFT_6
 187         bool
 188         help
 189           Setting ARM L1 cache line size to 64 Bytes.
 190
 191 config VECTORS_BASE
 192         hex
 193         default 0xffff0000 if MMU || CPU_HIGH_VECTOR
 194         default DRAM_BASE if REMAP_VECTORS_TO_RAM
 195         default 0x00000000
 196         help
 197           The base address of exception vectors.
 198
 199 source "init/Kconfig"
 200
 201 source "kernel/Kconfig.freezer"
 202
 203 menu "System Type"
 204
 205 config MMU
 206         bool "MMU-based Paged Memory Management Support"
 207         default y
 208         help
 209           Select if you want MMU-based virtualised addressing space
 210           support by paged memory management. If unsure, say 'Y'.
 211
 212 #
 213 # The "ARM system type" choice list is ordered alphabetically by option
 214 # text.  Please add new entries in the option alphabetic order.
 215 #
 216 choice
 217         prompt "ARM system type"
 218         default ARCH_VERSATILE
 219
 220 config ARCH_AAEC2000
 221         bool "Agilent AAEC-2000 based"
 222         select CPU_ARM920T
 223         select ARM_AMBA
 224         select HAVE_CLK
 225         select ARCH_USES_GETTIMEOFFSET
 226         help
 227           This enables support for systems based on the Agilent AAEC-2000
 228
 229 config ARCH_INTEGRATOR
 230         bool "ARM Ltd. Integrator family"
 231         select ARM_AMBA
 232         select ARCH_HAS_CPUFREQ
 233         select CLKDEV_LOOKUP
 234         select ICST
 235         select GENERIC_CLOCKEVENTS
 236         select PLAT_VERSATILE
 237         help
 238           Support for ARM's Integrator platform.
 239
 240 config ARCH_REALVIEW
 241         bool "ARM Ltd. RealView family"
 242         select ARM_AMBA
 243         select CLKDEV_LOOKUP
 244         select HAVE_SCHED_CLOCK
 245         select ICST
 246         select GENERIC_CLOCKEVENTS
 247         select ARCH_WANT_OPTIONAL_GPIOLIB
 248         select PLAT_VERSATILE
 249         select ARM_TIMER_SP804
 250         select GPIO_PL061 if GPIOLIB
 251         help
 252           This enables support for ARM Ltd RealView boards.
 253
 254 config ARCH_VERSATILE
 255         bool "ARM Ltd. Versatile family"
 256         select ARM_AMBA
 257         select ARM_VIC
 258         select CLKDEV_LOOKUP
 259         select HAVE_SCHED_CLOCK
 260         select ICST
 261         select GENERIC_CLOCKEVENTS
 262         select ARCH_WANT_OPTIONAL_GPIOLIB
 263         select PLAT_VERSATILE
 264         select ARM_TIMER_SP804
 265         help
 266           This enables support for ARM Ltd Versatile board.
 267
 268 config ARCH_VEXPRESS
 269         bool "ARM Ltd. Versatile Express family"
 270         select ARCH_WANT_OPTIONAL_GPIOLIB
 271         select ARM_AMBA
 272         select ARM_TIMER_SP804
 273         select CLKDEV_LOOKUP
 274         select GENERIC_CLOCKEVENTS
 275         select HAVE_CLK
 276         select HAVE_SCHED_CLOCK
 277         select ICST
 278         select PLAT_VERSATILE
 279         help
 280           This enables support for the ARM Ltd Versatile Express boards.
 281
 282 config ARCH_AT91
 283         bool "Atmel AT91"
 284         select ARCH_REQUIRE_GPIOLIB
 285         select HAVE_CLK
 286         help
 287           This enables support for systems based on the Atmel AT91RM9200,
 288           AT91SAM9 and AT91CAP9 processors.
 289
 290 config ARCH_BCMRING
 291         bool "Broadcom BCMRING"
 292         depends on MMU
 293         select CPU_V6
 294         select ARM_AMBA
 295         select CLKDEV_LOOKUP
 296         select GENERIC_CLOCKEVENTS
 297         select ARCH_WANT_OPTIONAL_GPIOLIB
 298         help
 299           Support for Broadcom's BCMRing platform.
 300
 301 config ARCH_CLPS711X
 302         bool "Cirrus Logic CLPS711x/EP721x-based"
 303         select CPU_ARM720T
 304         select ARCH_USES_GETTIMEOFFSET
 305         help
 306           Support for Cirrus Logic 711x/721x based boards.
 307
 308 config ARCH_CNS3XXX
 309         bool "Cavium Networks CNS3XXX family"
 310         select CPU_V6
 311         select GENERIC_CLOCKEVENTS
 312         select ARM_GIC
 313         select MIGHT_HAVE_PCI
 314         select PCI_DOMAINS if PCI
 315         help
 316           Support for Cavium Networks CNS3XXX platform.
 317
 318 config ARCH_GEMINI
 319         bool "Cortina Systems Gemini"
 320         select CPU_FA526
 321         select ARCH_REQUIRE_GPIOLIB
 322         select ARCH_USES_GETTIMEOFFSET
 323         help
 324           Support for the Cortina Systems Gemini family SoCs
 325
 326 config ARCH_EBSA110
 327         bool "EBSA-110"
 328         select CPU_SA110
 329         select ISA
 330         select NO_IOPORT
 331         select ARCH_USES_GETTIMEOFFSET
 332         help
 333           This is an evaluation board for the StrongARM processor available
 334           from Digital. It has limited hardware on-board, including an
 335           Ethernet interface, two PCMCIA sockets, two serial ports and a
 336           parallel port.
 337
 338 config ARCH_EP93XX
 339         bool "EP93xx-based"
 340         select CPU_ARM920T
 341         select ARM_AMBA
 342         select ARM_VIC
 343         select CLKDEV_LOOKUP
 344         select ARCH_REQUIRE_GPIOLIB
 345         select ARCH_HAS_HOLES_MEMORYMODEL
 346         select ARCH_USES_GETTIMEOFFSET
 347         help
 348           This enables support for the Cirrus EP93xx series of CPUs.
 349
 350 config ARCH_FOOTBRIDGE
 351         bool "FootBridge"
 352         select CPU_SA110
 353         select FOOTBRIDGE
 354         select ARCH_USES_GETTIMEOFFSET
 355         help
 356           Support for systems based on the DC21285 companion chip
 357           ("FootBridge"), such as the Simtec CATS and the Rebel NetWinder.
 358
 359 config ARCH_MXC
 360         bool "Freescale MXC/iMX-based"
 361         select GENERIC_CLOCKEVENTS
 362         select ARCH_REQUIRE_GPIOLIB
 363         select CLKDEV_LOOKUP
 364         help
 365           Support for Freescale MXC/iMX-based family of processors
 366
 367 config ARCH_MXS
 368         bool "Freescale MXS-based"
 369         select GENERIC_CLOCKEVENTS
 370         select ARCH_REQUIRE_GPIOLIB
 371         select COMMON_CLKDEV
 372         help
 373           Support for Freescale MXS-based family of processors
 374
 375 config ARCH_STMP3XXX
 376         bool "Freescale STMP3xxx"
 377         select CPU_ARM926T
 378         select CLKDEV_LOOKUP
 379         select ARCH_REQUIRE_GPIOLIB
 380         select GENERIC_CLOCKEVENTS
 381         select USB_ARCH_HAS_EHCI
 382         help
 383           Support for systems based on the Freescale 3xxx CPUs.
 384
 385 config ARCH_NETX
 386         bool "Hilscher NetX based"
 387         select CPU_ARM926T
 388         select ARM_VIC
 389         select GENERIC_CLOCKEVENTS
 390         help
 391           This enables support for systems based on the Hilscher NetX Soc
 392
 393 config ARCH_H720X
 394         bool "Hynix HMS720x-based"
 395         select CPU_ARM720T
 396         select ISA_DMA_API
 397         select ARCH_USES_GETTIMEOFFSET
 398         help
 399           This enables support for systems based on the Hynix HMS720x
 400
 401 config ARCH_IOP13XX
 402         bool "IOP13xx-based"
 403         depends on MMU
 404         select CPU_XSC3
 405         select PLAT_IOP
 406         select PCI
 407         select ARCH_SUPPORTS_MSI
 408         select VMSPLIT_1G
 409         help
 410           Support for Intel's IOP13XX (XScale) family of processors.
 411
 412 config ARCH_IOP32X
 413         bool "IOP32x-based"
 414         depends on MMU
 415         select CPU_XSCALE
 416         select PLAT_IOP
 417         select PCI
 418         select ARCH_REQUIRE_GPIOLIB
 419         help
 420           Support for Intel's 80219 and IOP32X (XScale) family of
 421           processors.
 422
 423 config ARCH_IOP33X
 424         bool "IOP33x-based"
 425         depends on MMU
 426         select CPU_XSCALE
 427         select PLAT_IOP
 428         select PCI
 429         select ARCH_REQUIRE_GPIOLIB
 430         help
 431           Support for Intel's IOP33X (XScale) family of processors.
 432
 433 config ARCH_IXP23XX
 434         bool "IXP23XX-based"
 435         depends on MMU
 436         select CPU_XSC3
 437         select PCI
 438         select ARCH_USES_GETTIMEOFFSET
 439         help
 440           Support for Intel's IXP23xx (XScale) family of processors.
 441
 442 config ARCH_IXP2000
 443         bool "IXP2400/2800-based"
 444         depends on MMU
 445         select CPU_XSCALE
 446         select PCI
 447         select ARCH_USES_GETTIMEOFFSET
 448         help
 449           Support for Intel's IXP2400/2800 (XScale) family of processors.
 450
 451 config ARCH_IXP4XX
 452         bool "IXP4xx-based"
 453         depends on MMU
 454         select CPU_XSCALE
 455         select GENERIC_GPIO
 456         select GENERIC_CLOCKEVENTS
 457         select HAVE_SCHED_CLOCK
 458         select MIGHT_HAVE_PCI
 459         select DMABOUNCE if PCI
 460         help
 461           Support for Intel's IXP4XX (XScale) family of processors.
 462
 463 config ARCH_DOVE
 464         bool "Marvell Dove"
 465         select PCI
 466         select ARCH_REQUIRE_GPIOLIB
 467         select GENERIC_CLOCKEVENTS
 468         select PLAT_ORION
 469         help
 470           Support for the Marvell Dove SoC 88AP510
 471
 472 config ARCH_KIRKWOOD
 473         bool "Marvell Kirkwood"
 474         select CPU_FEROCEON
 475         select PCI
 476         select ARCH_REQUIRE_GPIOLIB
 477         select GENERIC_CLOCKEVENTS
 478         select PLAT_ORION
 479         help
 480           Support for the following Marvell Kirkwood series SoCs:
 481           88F6180, 88F6192 and 88F6281.
 482
 483 config ARCH_LOKI
 484         bool "Marvell Loki (88RC8480)"
 485         select CPU_FEROCEON
 486         select GENERIC_CLOCKEVENTS
 487         select PLAT_ORION
 488         help
 489           Support for the Marvell Loki (88RC8480) SoC.
 490
 491 config ARCH_LPC32XX
 492         bool "NXP LPC32XX"
 493         select CPU_ARM926T
 494         select ARCH_REQUIRE_GPIOLIB
 495         select HAVE_IDE
 496         select ARM_AMBA
 497         select USB_ARCH_HAS_OHCI
 498         select CLKDEV_LOOKUP
 499         select GENERIC_TIME
 500         select GENERIC_CLOCKEVENTS
 501         help
 502           Support for the NXP LPC32XX family of processors
 503
 504 config ARCH_MV78XX0
 505         bool "Marvell MV78xx0"
 506         select CPU_FEROCEON
 507         select PCI
 508         select ARCH_REQUIRE_GPIOLIB
 509         select GENERIC_CLOCKEVENTS
 510         select PLAT_ORION
 511         help
 512           Support for the following Marvell MV78xx0 series SoCs:
 513           MV781x0, MV782x0.
 514
 515 config ARCH_ORION5X
 516         bool "Marvell Orion"
 517         depends on MMU
 518         select CPU_FEROCEON
 519         select PCI
 520         select ARCH_REQUIRE_GPIOLIB
 521         select GENERIC_CLOCKEVENTS
 522         select PLAT_ORION
 523         help
 524           Support for the following Marvell Orion 5x series SoCs:
 525           Orion-1 (5181), Orion-VoIP (5181L), Orion-NAS (5182),
 526           Orion-2 (5281), Orion-1-90 (6183).
 527
 528 config ARCH_MMP
 529         bool "Marvell PXA168/910/MMP2"
 530         depends on MMU
 531         select ARCH_REQUIRE_GPIOLIB
 532         select CLKDEV_LOOKUP
 533         select GENERIC_CLOCKEVENTS
 534         select HAVE_SCHED_CLOCK
 535         select TICK_ONESHOT
 536         select PLAT_PXA
 537         select SPARSE_IRQ
 538         help
 539           Support for Marvell's PXA168/PXA910(MMP) and MMP2 processor line.
 540
 541 config ARCH_KS8695
 542         bool "Micrel/Kendin KS8695"
 543         select CPU_ARM922T
 544         select ARCH_REQUIRE_GPIOLIB
 545         select ARCH_USES_GETTIMEOFFSET
 546         help
 547           Support for Micrel/Kendin KS8695 "Centaur" (ARM922T) based
 548           System-on-Chip devices.
 549
 550 config ARCH_NS9XXX
 551         bool "NetSilicon NS9xxx"
 552         select CPU_ARM926T
 553         select GENERIC_GPIO
 554         select GENERIC_CLOCKEVENTS
 555         select HAVE_CLK
 556         help
 557           Say Y here if you intend to run this kernel on a NetSilicon NS9xxx
 558           System.
 559
 560           <http://www.digi.com/products/microprocessors/index.jsp>
 561
 562 config ARCH_W90X900
 563         bool "Nuvoton W90X900 CPU"
 564         select CPU_ARM926T
 565         select ARCH_REQUIRE_GPIOLIB
 566         select CLKDEV_LOOKUP
 567         select GENERIC_CLOCKEVENTS
 568         help
 569           Support for Nuvoton (Winbond logic dept.) ARM9 processor,
 570           At present, the w90x900 has been renamed nuc900, regarding
 571           the ARM series product line, you can login the following
 572           link address to know more.
 573
 574           <http://www.nuvoton.com/hq/enu/ProductAndSales/ProductLines/
 575                 ConsumerElectronicsIC/ARMMicrocontroller/ARMMicrocontroller>
 576
 577 config ARCH_NUC93X
 578         bool "Nuvoton NUC93X CPU"
 579         select CPU_ARM926T
 580         select CLKDEV_LOOKUP
 581         help
 582           Support for Nuvoton (Winbond logic dept.) NUC93X MCU,The NUC93X is a
 583           low-power and high performance MPEG-4/JPEG multimedia controller chip.
 584
 585 config ARCH_TEGRA
 586         bool "NVIDIA Tegra"
 587         select CLKDEV_LOOKUP
 588         select GENERIC_TIME
 589         select GENERIC_CLOCKEVENTS
 590         select GENERIC_GPIO
 591         select HAVE_CLK
 592         select HAVE_SCHED_CLOCK
 593         select ARCH_HAS_BARRIERS if CACHE_L2X0
 594         select ARCH_HAS_CPUFREQ
 595         help
 596           This enables support for NVIDIA Tegra based systems (Tegra APX,
 597           Tegra 6xx and Tegra 2 series).
 598
 599 config ARCH_PNX4008
 600         bool "Philips Nexperia PNX4008 Mobile"
 601         select CPU_ARM926T
 602         select CLKDEV_LOOKUP
 603         select ARCH_USES_GETTIMEOFFSET
 604         help
 605           This enables support for Philips PNX4008 mobile platform.
 606
 607 config ARCH_PXA
 608         bool "PXA2xx/PXA3xx-based"
 609         depends on MMU
 610         select ARCH_MTD_XIP
 611         select ARCH_HAS_CPUFREQ
 612         select CLKDEV_LOOKUP
 613         select ARCH_REQUIRE_GPIOLIB
 614         select GENERIC_CLOCKEVENTS
 615         select HAVE_SCHED_CLOCK
 616         select TICK_ONESHOT
 617         select PLAT_PXA
 618         select SPARSE_IRQ
 619         help
 620           Support for Intel/Marvell's PXA2xx/PXA3xx processor line.
 621
 622 config ARCH_MSM
 623         bool "Qualcomm MSM"
 624         select HAVE_CLK
 625         select GENERIC_CLOCKEVENTS
 626         select ARCH_REQUIRE_GPIOLIB
 627         help
 628           Support for Qualcomm MSM/QSD based systems.  This runs on the
 629           apps processor of the MSM/QSD and depends on a shared memory
 630           interface to the modem processor which runs the baseband
 631           stack and controls some vital subsystems
 632           (clock and power control, etc).
 633
 634 config ARCH_SHMOBILE
 635         bool "Renesas SH-Mobile / R-Mobile"
 636         select HAVE_CLK
 637         select CLKDEV_LOOKUP
 638         select GENERIC_CLOCKEVENTS
 639         select NO_IOPORT
 640         select SPARSE_IRQ
 641         select MULTI_IRQ_HANDLER
 642         help
 643           Support for Renesas's SH-Mobile and R-Mobile ARM platforms.
 644
 645 config ARCH_RPC
 646         bool "RiscPC"
 647         select ARCH_ACORN
 648         select FIQ
 649         select TIMER_ACORN
 650         select ARCH_MAY_HAVE_PC_FDC
 651         select HAVE_PATA_PLATFORM
 652         select ISA_DMA_API
 653         select NO_IOPORT
 654         select ARCH_SPARSEMEM_ENABLE
 655         select ARCH_USES_GETTIMEOFFSET
 656         help
 657           On the Acorn Risc-PC, Linux can support the internal IDE disk and
 658           CD-ROM interface, serial and parallel port, and the floppy drive.
 659
 660 config ARCH_SA1100
 661         bool "SA1100-based"
 662         select CPU_SA1100
 663         select ISA
 664         select ARCH_SPARSEMEM_ENABLE
 665         select ARCH_MTD_XIP
 666         select ARCH_HAS_CPUFREQ
 667         select CPU_FREQ
 668         select GENERIC_CLOCKEVENTS
 669         select HAVE_CLK
 670         select HAVE_SCHED_CLOCK
 671         select TICK_ONESHOT
 672         select ARCH_REQUIRE_GPIOLIB
 673         help
 674           Support for StrongARM 11x0 based boards.
 675
 676 config ARCH_S3C2410
 677         bool "Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450"
 678         select GENERIC_GPIO
 679         select ARCH_HAS_CPUFREQ
 680         select HAVE_CLK
 681         select ARCH_USES_GETTIMEOFFSET
 682         select HAVE_S3C2410_I2C if I2C
 683         help
 684           Samsung S3C2410X CPU based systems, such as the Simtec Electronics
 685           BAST (<http://www.simtec.co.uk/products/EB110ITX/>), the IPAQ 1940 or
 686           the Samsung SMDK2410 development board (and derivatives).
 687
 688           Note, the S3C2416 and the S3C2450 are so close that they even share
 689           the same SoC ID code. This means that there is no seperate machine
 690           directory (no arch/arm/mach-s3c2450) as the S3C2416 was first.
 691
 692 config ARCH_S3C64XX
 693         bool "Samsung S3C64XX"
 694         select PLAT_SAMSUNG
 695         select CPU_V6
 696         select ARM_VIC
 697         select HAVE_CLK
 698         select NO_IOPORT
 699         select ARCH_USES_GETTIMEOFFSET
 700         select ARCH_HAS_CPUFREQ
 701         select ARCH_REQUIRE_GPIOLIB
 702         select SAMSUNG_CLKSRC
 703         select SAMSUNG_IRQ_VIC_TIMER
 704         select SAMSUNG_IRQ_UART
 705         select S3C_GPIO_TRACK
 706         select S3C_GPIO_PULL_UPDOWN
 707         select S3C_GPIO_CFG_S3C24XX
 708         select S3C_GPIO_CFG_S3C64XX
 709         select S3C_DEV_NAND
 710         select USB_ARCH_HAS_OHCI
 711         select SAMSUNG_GPIOLIB_4BIT
 712         select HAVE_S3C2410_I2C if I2C
 713         select HAVE_S3C2410_WATCHDOG if WATCHDOG
 714         help
 715           Samsung S3C64XX series based systems
 716
 717 config ARCH_S5P64X0
 718         bool "Samsung S5P6440 S5P6450"
 719         select CPU_V6
 720         select GENERIC_GPIO
 721         select HAVE_CLK
 722         select HAVE_S3C2410_WATCHDOG if WATCHDOG
 723         select ARCH_USES_GETTIMEOFFSET
 724         select HAVE_S3C2410_I2C if I2C
 725         select HAVE_S3C_RTC if RTC_CLASS
 726         help
 727           Samsung S5P64X0 CPU based systems, such as the Samsung SMDK6440,
 728           SMDK6450.
 729
 730 config ARCH_S5P6442
 731         bool "Samsung S5P6442"
 732         select CPU_V6
 733         select GENERIC_GPIO
 734         select HAVE_CLK
 735         select ARCH_USES_GETTIMEOFFSET
 736         select HAVE_S3C2410_WATCHDOG if WATCHDOG
 737         help
 738           Samsung S5P6442 CPU based systems
 739
 740 config ARCH_S5PC100
 741         bool "Samsung S5PC100"
 742         select GENERIC_GPIO
 743         select HAVE_CLK
 744         select CPU_V7
 745         select ARM_L1_CACHE_SHIFT_6
 746         select ARCH_USES_GETTIMEOFFSET
 747         select HAVE_S3C2410_I2C if I2C
 748         select HAVE_S3C_RTC if RTC_CLASS
 749         select HAVE_S3C2410_WATCHDOG if WATCHDOG
 750         help
 751           Samsung S5PC100 series based systems
 752
 753 config ARCH_S5PV210
 754         bool "Samsung S5PV210/S5PC110"
 755         select CPU_V7
 756         select ARCH_SPARSEMEM_ENABLE
 757         select GENERIC_GPIO
 758         select HAVE_CLK
 759         select ARM_L1_CACHE_SHIFT_6
 760         select ARCH_HAS_CPUFREQ
 761         select ARCH_USES_GETTIMEOFFSET
 762         select HAVE_S3C2410_I2C if I2C
 763         select HAVE_S3C_RTC if RTC_CLASS
 764         select HAVE_S3C2410_WATCHDOG if WATCHDOG
 765         help
 766           Samsung S5PV210/S5PC110 series based systems
 767
 768 config ARCH_S5PV310
 769         bool "Samsung S5PV310/S5PC210"
 770         select CPU_V7
 771         select ARCH_SPARSEMEM_ENABLE
 772         select GENERIC_GPIO
 773         select HAVE_CLK
 774         select GENERIC_CLOCKEVENTS
 775         select HAVE_S3C_RTC if RTC_CLASS
 776         select HAVE_S3C2410_I2C if I2C
 777         select HAVE_S3C2410_WATCHDOG if WATCHDOG
 778         help
 779           Samsung S5PV310 series based systems
 780
 781 config ARCH_SHARK
 782         bool "Shark"
 783         select CPU_SA110
 784         select ISA
 785         select ISA_DMA
 786         select ZONE_DMA
 787         select PCI
 788         select ARCH_USES_GETTIMEOFFSET
 789         help
 790           Support for the StrongARM based Digital DNARD machine, also known
 791           as "Shark" (<http://www.shark-linux.de/shark.html>).
 792
 793 config ARCH_TCC_926
 794         bool "Telechips TCC ARM926-based systems"
 795         select CPU_ARM926T
 796         select HAVE_CLK
 797         select CLKDEV_LOOKUP
 798         select GENERIC_CLOCKEVENTS
 799         help
 800           Support for Telechips TCC ARM926-based systems.
 801
 802 config ARCH_LH7A40X
 803         bool "Sharp LH7A40X"
 804         select CPU_ARM922T
 805         select ARCH_SPARSEMEM_ENABLE if !LH7A40X_CONTIGMEM
 806         select ARCH_USES_GETTIMEOFFSET
 807         help
 808           Say Y here for systems based on one of the Sharp LH7A40X
 809           System on a Chip processors.  These CPUs include an ARM922T
 810           core with a wide array of integrated devices for
 811           hand-held and low-power applications.
 812
 813 config ARCH_U300
 814         bool "ST-Ericsson U300 Series"
 815         depends on MMU
 816         select CPU_ARM926T
 817         select HAVE_SCHED_CLOCK
 818         select HAVE_TCM
 819         select ARM_AMBA
 820         select ARM_VIC
 821         select GENERIC_CLOCKEVENTS
 822         select CLKDEV_LOOKUP
 823         select GENERIC_GPIO
 824         help
 825           Support for ST-Ericsson U300 series mobile platforms.
 826
 827 config ARCH_U8500
 828         bool "ST-Ericsson U8500 Series"
 829         select CPU_V7
 830         select ARM_AMBA
 831         select GENERIC_CLOCKEVENTS
 832         select CLKDEV_LOOKUP
 833         select ARCH_REQUIRE_GPIOLIB
 834         select ARCH_HAS_CPUFREQ
 835         help
 836           Support for ST-Ericsson's Ux500 architecture
 837
 838 config ARCH_NOMADIK
 839         bool "STMicroelectronics Nomadik"
 840         select ARM_AMBA
 841         select ARM_VIC
 842         select CPU_ARM926T
 843         select CLKDEV_LOOKUP
 844         select GENERIC_CLOCKEVENTS
 845         select ARCH_REQUIRE_GPIOLIB
 846         help
 847           Support for the Nomadik platform by ST-Ericsson
 848
 849 config ARCH_DAVINCI
 850         bool "TI DaVinci"
 851         select GENERIC_CLOCKEVENTS
 852         select ARCH_REQUIRE_GPIOLIB
 853         select ZONE_DMA
 854         select HAVE_IDE
 855         select CLKDEV_LOOKUP
 856         select GENERIC_ALLOCATOR
 857         select ARCH_HAS_HOLES_MEMORYMODEL
 858         help
 859           Support for TI's DaVinci platform.
 860
 861 config ARCH_OMAP
 862         bool "TI OMAP"
 863         select HAVE_CLK
 864         select ARCH_REQUIRE_GPIOLIB
 865         select ARCH_HAS_CPUFREQ
 866         select GENERIC_CLOCKEVENTS
 867         select HAVE_SCHED_CLOCK
 868         select ARCH_HAS_HOLES_MEMORYMODEL
 869         help
 870           Support for TI's OMAP platform (OMAP1/2/3/4).
 871
 872 config PLAT_SPEAR
 873         bool "ST SPEAr"
 874         select ARM_AMBA
 875         select ARCH_REQUIRE_GPIOLIB
 876         select CLKDEV_LOOKUP
 877         select GENERIC_CLOCKEVENTS
 878         select HAVE_CLK
 879         help
 880           Support for ST's SPEAr platform (SPEAr3xx, SPEAr6xx and SPEAr13xx).
 881
 882 endchoice
 883
 884 #
 885 # This is sorted alphabetically by mach-* pathname.  However, plat-*
 886 # Kconfigs may be included either alphabetically (according to the
 887 # plat- suffix) or along side the corresponding mach-* source.
 888 #
 889 source "arch/arm/mach-aaec2000/Kconfig"
 890
 891 source "arch/arm/mach-at91/Kconfig"
 892
 893 source "arch/arm/mach-bcmring/Kconfig"
 894
 895 source "arch/arm/mach-clps711x/Kconfig"
 896
 897 source "arch/arm/mach-cns3xxx/Kconfig"
 898
 899 source "arch/arm/mach-davinci/Kconfig"
 900
 901 source "arch/arm/mach-dove/Kconfig"
 902
 903 source "arch/arm/mach-ep93xx/Kconfig"
 904
 905 source "arch/arm/mach-footbridge/Kconfig"
 906
 907 source "arch/arm/mach-gemini/Kconfig"
 908
 909 source "arch/arm/mach-h720x/Kconfig"
 910
 911 source "arch/arm/mach-integrator/Kconfig"
 912
 913 source "arch/arm/mach-iop32x/Kconfig"
 914
 915 source "arch/arm/mach-iop33x/Kconfig"
 916
 917 source "arch/arm/mach-iop13xx/Kconfig"
 918
 919 source "arch/arm/mach-ixp4xx/Kconfig"
 920
 921 source "arch/arm/mach-ixp2000/Kconfig"
 922
 923 source "arch/arm/mach-ixp23xx/Kconfig"
 924
 925 source "arch/arm/mach-kirkwood/Kconfig"
 926
 927 source "arch/arm/mach-ks8695/Kconfig"
 928
 929 source "arch/arm/mach-lh7a40x/Kconfig"
 930
 931 source "arch/arm/mach-loki/Kconfig"
 932
 933 source "arch/arm/mach-lpc32xx/Kconfig"
 934
 935 source "arch/arm/mach-msm/Kconfig"
 936
 937 source "arch/arm/mach-mv78xx0/Kconfig"
 938
 939 source "arch/arm/plat-mxc/Kconfig"
 940
 941 source "arch/arm/mach-mxs/Kconfig"
 942
 943 source "arch/arm/mach-netx/Kconfig"
 944
 945 source "arch/arm/mach-nomadik/Kconfig"
 946 source "arch/arm/plat-nomadik/Kconfig"
 947
 948 source "arch/arm/mach-ns9xxx/Kconfig"
 949
 950 source "arch/arm/mach-nuc93x/Kconfig"
 951
 952 source "arch/arm/plat-omap/Kconfig"
 953
 954 source "arch/arm/mach-omap1/Kconfig"
 955
 956 source "arch/arm/mach-omap2/Kconfig"
 957
 958 source "arch/arm/mach-orion5x/Kconfig"
 959
 960 source "arch/arm/mach-pxa/Kconfig"
 961 source "arch/arm/plat-pxa/Kconfig"
 962
 963 source "arch/arm/mach-mmp/Kconfig"
 964
 965 source "arch/arm/mach-realview/Kconfig"
 966
 967 source "arch/arm/mach-sa1100/Kconfig"
 968
 969 source "arch/arm/plat-samsung/Kconfig"
 970 source "arch/arm/plat-s3c24xx/Kconfig"
 971 source "arch/arm/plat-s5p/Kconfig"
 972
 973 source "arch/arm/plat-spear/Kconfig"
 974
 975 source "arch/arm/plat-tcc/Kconfig"
 976
 977 if ARCH_S3C2410
 978 source "arch/arm/mach-s3c2400/Kconfig"
 979 source "arch/arm/mach-s3c2410/Kconfig"
 980 source "arch/arm/mach-s3c2412/Kconfig"
 981 source "arch/arm/mach-s3c2416/Kconfig"
 982 source "arch/arm/mach-s3c2440/Kconfig"
 983 source "arch/arm/mach-s3c2443/Kconfig"
 984 endif
 985
 986 if ARCH_S3C64XX
 987 source "arch/arm/mach-s3c64xx/Kconfig"
 988 endif
 989
 990 source "arch/arm/mach-s5p64x0/Kconfig"
 991
 992 source "arch/arm/mach-s5p6442/Kconfig"
 993
 994 source "arch/arm/mach-s5pc100/Kconfig"
 995
 996 source "arch/arm/mach-s5pv210/Kconfig"
 997
 998 source "arch/arm/mach-s5pv310/Kconfig"
 999
1000 source "arch/arm/mach-shmobile/Kconfig"
1001
1002 source "arch/arm/plat-stmp3xxx/Kconfig"
1003
1004 source "arch/arm/mach-tegra/Kconfig"
1005
1006 source "arch/arm/mach-u300/Kconfig"
1007
1008 source "arch/arm/mach-ux500/Kconfig"
1009
1010 source "arch/arm/mach-versatile/Kconfig"
1011
1012 source "arch/arm/mach-vexpress/Kconfig"
1013
1014 source "arch/arm/mach-w90x900/Kconfig"
1015
1016 # Definitions to make life easier
1017 config ARCH_ACORN
1018         bool
1019
1020 config PLAT_IOP
1021         bool
1022         select GENERIC_CLOCKEVENTS
1023         select HAVE_SCHED_CLOCK
1024
1025 config PLAT_ORION
1026         bool
1027         select HAVE_SCHED_CLOCK
1028
1029 config PLAT_PXA
1030         bool
1031
1032 config PLAT_VERSATILE
1033         bool
1034
1035 config ARM_TIMER_SP804
1036         bool
1037
1038 source arch/arm/mm/Kconfig
1039
1040 config IWMMXT
1041         bool "Enable iWMMXt support"
1042         depends on CPU_XSCALE || CPU_XSC3 || CPU_MOHAWK || CPU_PJ4
1043         default y if PXA27x || PXA3xx || PXA95x || ARCH_MMP
1044         help
1045           Enable support for iWMMXt context switching at run time if
1046           running on a CPU that supports it.
1047
1048 #  bool 'Use XScale PMU as timer source' CONFIG_XSCALE_PMU_TIMER
1049 config XSCALE_PMU
1050         bool
1051         depends on CPU_XSCALE && !XSCALE_PMU_TIMER
1052         default y
1053
1054 config CPU_HAS_PMU
1055         depends on (CPU_V6 || CPU_V7 || XSCALE_PMU) && \
1056                    (!ARCH_OMAP3 || OMAP3_EMU)
1057         default y
1058         bool
1059
1060 config MULTI_IRQ_HANDLER
1061         bool
1062         help
1063           Allow each machine to specify it's own IRQ handler at run time.
1064
1065 if !MMU
1066 source "arch/arm/Kconfig-nommu"
1067 endif
1068
1069 config ARM_ERRATA_411920
1070         bool "ARM errata: Invalidation of the Instruction Cache operation can fail"
1071         depends on CPU_V6
1072         help
1073           Invalidation of the Instruction Cache operation can
1074           fail. This erratum is present in 1136 (before r1p4), 1156 and 1176.
1075           It does not affect the MPCore. This option enables the ARM Ltd.
1076           recommended workaround.
1077
1078 config ARM_ERRATA_430973
1079         bool "ARM errata: Stale prediction on replaced interworking branch"
1080         depends on CPU_V7
1081         help
1082           This option enables the workaround for the 430973 Cortex-A8
1083           (r1p0..r1p2) erratum. If a code sequence containing an ARM/Thumb
1084           interworking branch is replaced with another code sequence at the
1085           same virtual address, whether due to self-modifying code or virtual
1086           to physical address re-mapping, Cortex-A8 does not recover from the
1087           stale interworking branch prediction. This results in Cortex-A8
1088           executing the new code sequence in the incorrect ARM or Thumb state.
1089           The workaround enables the BTB/BTAC operations by setting ACTLR.IBE
1090           and also flushes the branch target cache at every context switch.
1091           Note that setting specific bits in the ACTLR register may not be
1092           available in non-secure mode.
1093
1094 config ARM_ERRATA_458693
1095         bool "ARM errata: Processor deadlock when a false hazard is created"
1096         depends on CPU_V7
1097         help
1098           This option enables the workaround for the 458693 Cortex-A8 (r2p0)
1099           erratum. For very specific sequences of memory operations, it is
1100           possible for a hazard condition intended for a cache line to instead
1101           be incorrectly associated with a different cache line. This false
1102           hazard might then cause a processor deadlock. The workaround enables
1103           the L1 caching of the NEON accesses and disables the PLD instruction
1104           in the ACTLR register. Note that setting specific bits in the ACTLR
1105           register may not be available in non-secure mode.
1106
1107 config ARM_ERRATA_460075
1108         bool "ARM errata: Data written to the L2 cache can be overwritten with stale data"
1109         depends on CPU_V7
1110         help
1111           This option enables the workaround for the 460075 Cortex-A8 (r2p0)
1112           erratum. Any asynchronous access to the L2 cache may encounter a
1113           situation in which recent store transactions to the L2 cache are lost
1114           and overwritten with stale memory contents from external memory. The
1115           workaround disables the write-allocate mode for the L2 cache via the
1116           ACTLR register. Note that setting specific bits in the ACTLR register
1117           may not be available in non-secure mode.
1118
1119 config ARM_ERRATA_742230
1120         bool "ARM errata: DMB operation may be faulty"
1121         depends on CPU_V7 && SMP
1122         help
1123           This option enables the workaround for the 742230 Cortex-A9
1124           (r1p0..r2p2) erratum. Under rare circumstances, a DMB instruction
1125           between two write operations may not ensure the correct visibility
1126           ordering of the two writes. This workaround sets a specific bit in
1127           the diagnostic register of the Cortex-A9 which causes the DMB
1128           instruction to behave as a DSB, ensuring the correct behaviour of
1129           the two writes.
1130
1131 config ARM_ERRATA_742231
1132         bool "ARM errata: Incorrect hazard handling in the SCU may lead to data corruption"
1133         depends on CPU_V7 && SMP
1134         help
1135           This option enables the workaround for the 742231 Cortex-A9
1136           (r2p0..r2p2) erratum. Under certain conditions, specific to the
1137           Cortex-A9 MPCore micro-architecture, two CPUs working in SMP mode,
1138           accessing some data located in the same cache line, may get corrupted
1139           data due to bad handling of the address hazard when the line gets
1140           replaced from one of the CPUs at the same time as another CPU is
1141           accessing it. This workaround sets specific bits in the diagnostic
1142           register of the Cortex-A9 which reduces the linefill issuing
1143           capabilities of the processor.
1144
1145 config PL310_ERRATA_588369
1146         bool "Clean & Invalidate maintenance operations do not invalidate clean lines"
1147         depends on CACHE_L2X0 && ARCH_OMAP4
1148         help
1149            The PL310 L2 cache controller implements three types of Clean &
1150            Invalidate maintenance operations: by Physical Address
1151            (offset 0x7F0), by Index/Way (0x7F8) and by Way (0x7FC).
1152            They are architecturally defined to behave as the execution of a
1153            clean operation followed immediately by an invalidate operation,
1154            both performing to the same memory location. This functionality
1155            is not correctly implemented in PL310 as clean lines are not
1156            invalidated as a result of these operations. Note that this errata
1157            uses Texas Instrument's secure monitor api.
1158
1159 config ARM_ERRATA_720789
1160         bool "ARM errata: TLBIASIDIS and TLBIMVAIS operations can broadcast a faulty ASID"
1161         depends on CPU_V7 && SMP
1162         help
1163           This option enables the workaround for the 720789 Cortex-A9 (prior to
1164           r2p0) erratum. A faulty ASID can be sent to the other CPUs for the
1165           broadcasted CP15 TLB maintenance operations TLBIASIDIS and TLBIMVAIS.
1166           As a consequence of this erratum, some TLB entries which should be
1167           invalidated are not, resulting in an incoherency in the system page
1168           tables. The workaround changes the TLB flushing routines to invalidate
1169           entries regardless of the ASID.
1170
1171 config ARM_ERRATA_743622
1172         bool "ARM errata: Faulty hazard checking in the Store Buffer may lead to data corruption"
1173         depends on CPU_V7
1174         help
1175           This option enables the workaround for the 743622 Cortex-A9
1176           (r2p0..r2p2) erratum. Under very rare conditions, a faulty
1177           optimisation in the Cortex-A9 Store Buffer may lead to data
1178           corruption. This workaround sets a specific bit in the diagnostic
1179           register of the Cortex-A9 which disables the Store Buffer
1180           optimisation, preventing the defect from occurring. This has no
1181           visible impact on the overall performance or power consumption of the
1182           processor.
1183
1184 endmenu
1185
1186 source "arch/arm/common/Kconfig"
1187
1188 menu "Bus support"
1189
1190 config ARM_AMBA
1191         bool
1192
1193 config ISA
1194         bool
1195         help
1196           Find out whether you have ISA slots on your motherboard.  ISA is the
1197           name of a bus system, i.e. the way the CPU talks to the other stuff
1198           inside your box.  Other bus systems are PCI, EISA, MicroChannel
1199           (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
1200           newer boards don't support it.  If you have ISA, say Y, otherwise N.
1201
1202 # Select ISA DMA controller support
1203 config ISA_DMA
1204         bool
1205         select ISA_DMA_API
1206
1207 # Select ISA DMA interface
1208 config ISA_DMA_API
1209         bool
1210
1211 config PCI
1212         bool "PCI support" if MIGHT_HAVE_PCI
1213         help
1214           Find out whether you have a PCI motherboard. PCI is the name of a
1215           bus system, i.e. the way the CPU talks to the other stuff inside
1216           your box. Other bus systems are ISA, EISA, MicroChannel (MCA) or
1217           VESA. If you have PCI, say Y, otherwise N.
1218
1219 config PCI_DOMAINS
1220         bool
1221         depends on PCI
1222
1223 config PCI_NANOENGINE
1224         bool "BSE nanoEngine PCI support"
1225         depends on SA1100_NANOENGINE
1226         help
1227           Enable PCI on the BSE nanoEngine board.
1228
1229 config PCI_SYSCALL
1230         def_bool PCI
1231
1232 # Select the host bridge type
1233 config PCI_HOST_VIA82C505
1234         bool
1235         depends on PCI && ARCH_SHARK
1236         default y
1237
1238 config PCI_HOST_ITE8152
1239         bool
1240         depends on PCI && MACH_ARMCORE
1241         default y
1242         select DMABOUNCE
1243
1244 source "drivers/pci/Kconfig"
1245
1246 source "drivers/pcmcia/Kconfig"
1247
1248 endmenu
1249
1250 menu "Kernel Features"
1251
1252 source "kernel/time/Kconfig"
1253
1254 config SMP
1255         bool "Symmetric Multi-Processing (EXPERIMENTAL)"
1256         depends on EXPERIMENTAL
1257         depends on GENERIC_CLOCKEVENTS
1258         depends on REALVIEW_EB_ARM11MP || REALVIEW_EB_A9MP || \
1259                  MACH_REALVIEW_PB11MP || MACH_REALVIEW_PBX || ARCH_OMAP4 || \
1260                  ARCH_S5PV310 || ARCH_TEGRA || ARCH_U8500 || ARCH_VEXPRESS_CA9X4 || \
1261                  ARCH_MSM_SCORPIONMP || ARCH_SHMOBILE
1262         select USE_GENERIC_SMP_HELPERS
1263         select HAVE_ARM_SCU if !ARCH_MSM_SCORPIONMP
1264         help
1265           This enables support for systems with more than one CPU. If you have
1266           a system with only one CPU, like most personal computers, say N. If
1267           you have a system with more than one CPU, say Y.
1268
1269           If you say N here, the kernel will run on single and multiprocessor
1270           machines, but will use only one CPU of a multiprocessor machine. If
1271           you say Y here, the kernel will run on many, but not all, single
1272           processor machines. On a single processor machine, the kernel will
1273           run faster if you say N here.
1274
1275           See also <file:Documentation/i386/IO-APIC.txt>,
1276           <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available at
1277           <http://tldp.org/HOWTO/SMP-HOWTO.html>.
1278
1279           If you don't know what to do here, say N.
1280
1281 config SMP_ON_UP
1282         bool "Allow booting SMP kernel on uniprocessor systems (EXPERIMENTAL)"
1283         depends on EXPERIMENTAL
1284         depends on SMP && !XIP
1285         default y
1286         help
1287           SMP kernels contain instructions which fail on non-SMP processors.
1288           Enabling this option allows the kernel to modify itself to make
1289           these instructions safe.  Disabling it allows about 1K of space
1290           savings.
1291
1292           If you don't know what to do here, say Y.
1293
1294 config HAVE_ARM_SCU
1295         bool
1296         depends on SMP
1297         help
1298           This option enables support for the ARM system coherency unit
1299
1300 config HAVE_ARM_TWD
1301         bool
1302         depends on SMP
1303         select TICK_ONESHOT
1304         help
1305           This options enables support for the ARM timer and watchdog unit
1306
1307 choice
1308         prompt "Memory split"
1309         default VMSPLIT_3G
1310         help
1311           Select the desired split between kernel and user memory.
1312
1313           If you are not absolutely sure what you are doing, leave this
1314           option alone!
1315
1316         config VMSPLIT_3G
1317                 bool "3G/1G user/kernel split"
1318         config VMSPLIT_2G
1319                 bool "2G/2G user/kernel split"
1320         config VMSPLIT_1G
1321                 bool "1G/3G user/kernel split"
1322 endchoice
1323
1324 config PAGE_OFFSET
1325         hex
1326         default 0x40000000 if VMSPLIT_1G
1327         default 0x80000000 if VMSPLIT_2G
1328         default 0xC0000000
1329
1330 config NR_CPUS
1331         int "Maximum number of CPUs (2-32)"
1332         range 2 32
1333         depends on SMP
1334         default "4"
1335
1336 config HOTPLUG_CPU
1337         bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
1338         depends on SMP && HOTPLUG && EXPERIMENTAL
1339         depends on !ARCH_MSM
1340         help
1341           Say Y here to experiment with turning CPUs off and on.  CPUs
1342           can be controlled through /sys/devices/system/cpu.
1343
1344 config LOCAL_TIMERS
1345         bool "Use local timer interrupts"
1346         depends on SMP
1347         default y
1348         select HAVE_ARM_TWD if !ARCH_MSM_SCORPIONMP
1349         help
1350           Enable support for local timers on SMP platforms, rather then the
1351           legacy IPI broadcast method.  Local timers allows the system
1352           accounting to be spread across the timer interval, preventing a
1353           "thundering herd" at every timer tick.
1354
1355 source kernel/Kconfig.preempt
1356
1357 config HZ
1358         int
1359         default 200 if ARCH_EBSA110 || ARCH_S3C2410 || ARCH_S5P64X0 || \
1360                 ARCH_S5P6442 || ARCH_S5PV210 || ARCH_S5PV310
1361         default OMAP_32K_TIMER_HZ if ARCH_OMAP && OMAP_32K_TIMER
1362         default AT91_TIMER_HZ if ARCH_AT91
1363         default SHMOBILE_TIMER_HZ if ARCH_SHMOBILE
1364         default 100
1365
1366 config THUMB2_KERNEL
1367         bool "Compile the kernel in Thumb-2 mode (EXPERIMENTAL)"
1368         depends on CPU_V7 && !CPU_V6 && EXPERIMENTAL
1369         select AEABI
1370         select ARM_ASM_UNIFIED
1371         help
1372           By enabling this option, the kernel will be compiled in
1373           Thumb-2 mode. A compiler/assembler that understand the unified
1374           ARM-Thumb syntax is needed.
1375
1376           If unsure, say N.
1377
1378 config ARM_ASM_UNIFIED
1379         bool
1380
1381 config AEABI
1382         bool "Use the ARM EABI to compile the kernel"
1383         help
1384           This option allows for the kernel to be compiled using the latest
1385           ARM ABI (aka EABI).  This is only useful if you are using a user
1386           space environment that is also compiled with EABI.
1387
1388           Since there are major incompatibilities between the legacy ABI and
1389           EABI, especially with regard to structure member alignment, this
1390           option also changes the kernel syscall calling convention to
1391           disambiguate both ABIs and allow for backward compatibility support
1392           (selected with CONFIG_OABI_COMPAT).
1393
1394           To use this you need GCC version 4.0.0 or later.
1395
1396 config OABI_COMPAT
1397         bool "Allow old ABI binaries to run with this kernel (EXPERIMENTAL)"
1398         depends on AEABI && EXPERIMENTAL
1399         default y
1400         help
1401           This option preserves the old syscall interface along with the
1402           new (ARM EABI) one. It also provides a compatibility layer to
1403           intercept syscalls that have structure arguments which layout
1404           in memory differs between the legacy ABI and the new ARM EABI
1405           (only for non "thumb" binaries). This option adds a tiny
1406           overhead to all syscalls and produces a slightly larger kernel.
1407           If you know you'll be using only pure EABI user space then you
1408           can say N here. If this option is not selected and you attempt
1409           to execute a legacy ABI binary then the result will be
1410           UNPREDICTABLE (in fact it can be predicted that it won't work
1411           at all). If in doubt say Y.
1412
1413 config ARCH_HAS_HOLES_MEMORYMODEL
1414         bool
1415
1416 config ARCH_SPARSEMEM_ENABLE
1417         bool
1418
1419 config ARCH_SPARSEMEM_DEFAULT
1420         def_bool ARCH_SPARSEMEM_ENABLE
1421
1422 config ARCH_SELECT_MEMORY_MODEL
1423         def_bool ARCH_SPARSEMEM_ENABLE
1424
1425 config HIGHMEM
1426         bool "High Memory Support (EXPERIMENTAL)"
1427         depends on MMU && EXPERIMENTAL
1428         help
1429           The address space of ARM processors is only 4 Gigabytes large
1430           and it has to accommodate user address space, kernel address
1431           space as well as some memory mapped IO. That means that, if you
1432           have a large amount of physical memory and/or IO, not all of the
1433           memory can be "permanently mapped" by the kernel. The physical
1434           memory that is not permanently mapped is called "high memory".
1435
1436           Depending on the selected kernel/user memory split, minimum
1437           vmalloc space and actual amount of RAM, you may not need this
1438           option which should result in a slightly faster kernel.
1439
1440           If unsure, say n.
1441
1442 config HIGHPTE
1443         bool "Allocate 2nd-level pagetables from highmem"
1444         depends on HIGHMEM
1445         depends on !OUTER_CACHE
1446
1447 config HW_PERF_EVENTS
1448         bool "Enable hardware performance counter support for perf events"
1449         depends on PERF_EVENTS && CPU_HAS_PMU
1450         default y
1451         help
1452           Enable hardware performance counter support for perf events. If
1453           disabled, perf events will use software events only.
1454
1455 config SPARSE_IRQ
1456         def_bool n
1457         help
1458           This enables support for sparse irqs. This is useful in general
1459           as most CPUs have a fairly sparse array of IRQ vectors, which
1460           the irq_desc then maps directly on to. Systems with a high
1461           number of off-chip IRQs will want to treat this as
1462           experimental until they have been independently verified.
1463
1464 source "mm/Kconfig"
1465
1466 config FORCE_MAX_ZONEORDER
1467         int "Maximum zone order" if ARCH_SHMOBILE
1468         range 11 64 if ARCH_SHMOBILE
1469         default "9" if SA1111
1470         default "11"
1471         help
1472           The kernel memory allocator divides physically contiguous memory
1473           blocks into "zones", where each zone is a power of two number of
1474           pages.  This option selects the largest power of two that the kernel
1475           keeps in the memory allocator.  If you need to allocate very large
1476           blocks of physically contiguous memory, then you may need to
1477           increase this value.
1478
1479           This config option is actually maximum order plus one. For example,
1480           a value of 11 means that the largest free memory block is 2^10 pages.
1481
1482 config LEDS
1483         bool "Timer and CPU usage LEDs"
1484         depends on ARCH_CDB89712 || ARCH_EBSA110 || \
1485                    ARCH_EBSA285 || ARCH_INTEGRATOR || \
1486                    ARCH_LUBBOCK || MACH_MAINSTONE || ARCH_NETWINDER || \
1487                    ARCH_OMAP || ARCH_P720T || ARCH_PXA_IDP || \
1488                    ARCH_SA1100 || ARCH_SHARK || ARCH_VERSATILE || \
1489                    ARCH_AT91 || ARCH_DAVINCI || \
1490                    ARCH_KS8695 || MACH_RD88F5182 || ARCH_REALVIEW
1491         help
1492           If you say Y here, the LEDs on your machine will be used
1493           to provide useful information about your current system status.
1494
1495           If you are compiling a kernel for a NetWinder or EBSA-285, you will
1496           be able to select which LEDs are active using the options below. If
1497           you are compiling a kernel for the EBSA-110 or the LART however, the
1498           red LED will simply flash regularly to indicate that the system is
1499           still functional. It is safe to say Y here if you have a CATS
1500           system, but the driver will do nothing.
1501
1502 config LEDS_TIMER
1503         bool "Timer LED" if (!ARCH_CDB89712 && !ARCH_OMAP) || \
1504                             OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1505                             || MACH_OMAP_PERSEUS2
1506         depends on LEDS
1507         depends on !GENERIC_CLOCKEVENTS
1508         default y if ARCH_EBSA110
1509         help
1510           If you say Y here, one of the system LEDs (the green one on the
1511           NetWinder, the amber one on the EBSA285, or the red one on the LART)
1512           will flash regularly to indicate that the system is still
1513           operational. This is mainly useful to kernel hackers who are
1514           debugging unstable kernels.
1515
1516           The LART uses the same LED for both Timer LED and CPU usage LED
1517           functions. You may choose to use both, but the Timer LED function
1518           will overrule the CPU usage LED.
1519
1520 config LEDS_CPU
1521         bool "CPU usage LED" if (!ARCH_CDB89712 && !ARCH_EBSA110 && \
1522                         !ARCH_OMAP) \
1523                         || OMAP_OSK_MISTRAL || MACH_OMAP_H2 \
1524                         || MACH_OMAP_PERSEUS2
1525         depends on LEDS
1526         help
1527           If you say Y here, the red LED will be used to give a good real
1528           time indication of CPU usage, by lighting whenever the idle task
1529           is not currently executing.
1530
1531           The LART uses the same LED for both Timer LED and CPU usage LED
1532           functions. You may choose to use both, but the Timer LED function
1533           will overrule the CPU usage LED.
1534
1535 config ALIGNMENT_TRAP
1536         bool
1537         depends on CPU_CP15_MMU
1538         default y if !ARCH_EBSA110
1539         select HAVE_PROC_CPU if PROC_FS
1540         help
1541           ARM processors cannot fetch/store information which is not
1542           naturally aligned on the bus, i.e., a 4 byte fetch must start at an
1543           address divisible by 4. On 32-bit ARM processors, these non-aligned
1544           fetch/store instructions will be emulated in software if you say
1545           here, which has a severe performance impact. This is necessary for
1546           correct operation of some network protocols. With an IP-only
1547           configuration it is safe to say N, otherwise say Y.
1548
1549 config UACCESS_WITH_MEMCPY
1550         bool "Use kernel mem{cpy,set}() for {copy_to,clear}_user() (EXPERIMENTAL)"
1551         depends on MMU && EXPERIMENTAL
1552         default y if CPU_FEROCEON
1553         help
1554           Implement faster copy_to_user and clear_user methods for CPU
1555           cores where a 8-word STM instruction give significantly higher
1556           memory write throughput than a sequence of individual 32bit stores.
1557
1558           A possible side effect is a slight increase in scheduling latency
1559           between threads sharing the same address space if they invoke
1560           such copy operations with large buffers.
1561
1562           However, if the CPU data cache is using a write-allocate mode,
1563           this option is unlikely to provide any performance gain.
1564
1565 config SECCOMP
1566         bool
1567         prompt "Enable seccomp to safely compute untrusted bytecode"
1568         ---help---
1569           This kernel feature is useful for number crunching applications
1570           that may need to compute untrusted bytecode during their
1571           execution. By using pipes or other transports made available to
1572           the process as file descriptors supporting the read/write
1573           syscalls, it's possible to isolate those applications in
1574           their own address space using seccomp. Once seccomp is
1575           enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
1576           and the task is only allowed to execute a few safe syscalls
1577           defined by each seccomp mode.
1578
1579 config CC_STACKPROTECTOR
1580         bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
1581         depends on EXPERIMENTAL
1582         help
1583           This option turns on the -fstack-protector GCC feature. This
1584           feature puts, at the beginning of functions, a canary value on
1585           the stack just before the return address, and validates
1586           the value just before actually returning.  Stack based buffer
1587           overflows (that need to overwrite this return address) now also
1588           overwrite the canary, which gets detected and the attack is then
1589           neutralized via a kernel panic.
1590           This feature requires gcc version 4.2 or above.
1591
1592 config DEPRECATED_PARAM_STRUCT
1593         bool "Provide old way to pass kernel parameters"
1594         help
1595           This was deprecated in 2001 and announced to live on for 5 years.
1596           Some old boot loaders still use this way.
1597
1598 endmenu
1599
1600 menu "Boot options"
1601
1602 # Compressed boot loader in ROM.  Yes, we really want to ask about
1603 # TEXT and BSS so we preserve their values in the config files.
1604 config ZBOOT_ROM_TEXT
1605         hex "Compressed ROM boot loader base address"
1606         default "0"
1607         help
1608           The physical address at which the ROM-able zImage is to be
1609           placed in the target.  Platforms which normally make use of
1610           ROM-able zImage formats normally set this to a suitable
1611           value in their defconfig file.
1612
1613           If ZBOOT_ROM is not enabled, this has no effect.
1614
1615 config ZBOOT_ROM_BSS
1616         hex "Compressed ROM boot loader BSS address"
1617         default "0"
1618         help
1619           The base address of an area of read/write memory in the target
1620           for the ROM-able zImage which must be available while the
1621           decompressor is running. It must be large enough to hold the
1622           entire decompressed kernel plus an additional 128 KiB.
1623           Platforms which normally make use of ROM-able zImage formats
1624           normally set this to a suitable value in their defconfig file.
1625
1626           If ZBOOT_ROM is not enabled, this has no effect.
1627
1628 config ZBOOT_ROM
1629         bool "Compressed boot loader in ROM/flash"
1630         depends on ZBOOT_ROM_TEXT != ZBOOT_ROM_BSS
1631         help
1632           Say Y here if you intend to execute your compressed kernel image
1633           (zImage) directly from ROM or flash.  If unsure, say N.
1634
1635 config CMDLINE
1636         string "Default kernel command string"
1637         default ""
1638         help
1639           On some architectures (EBSA110 and CATS), there is currently no way
1640           for the boot loader to pass arguments to the kernel. For these
1641           architectures, you should supply some command-line options at build
1642           time by entering them here. As a minimum, you should specify the
1643           memory size and the root device (e.g., mem=64M root=/dev/nfs).
1644
1645 config CMDLINE_FORCE
1646         bool "Always use the default kernel command string"
1647         depends on CMDLINE != ""
1648         help
1649           Always use the default kernel command string, even if the boot
1650           loader passes other arguments to the kernel.
1651           This is useful if you cannot or don't want to change the
1652           command-line options your boot loader passes to the kernel.
1653
1654           If unsure, say N.
1655
1656 config XIP_KERNEL
1657         bool "Kernel Execute-In-Place from ROM"
1658         depends on !ZBOOT_ROM
1659         help
1660           Execute-In-Place allows the kernel to run from non-volatile storage
1661           directly addressable by the CPU, such as NOR flash. This saves RAM
1662           space since the text section of the kernel is not loaded from flash
1663           to RAM.  Read-write sections, such as the data section and stack,
1664           are still copied to RAM.  The XIP kernel is not compressed since
1665           it has to run directly from flash, so it will take more space to
1666           store it.  The flash address used to link the kernel object files,
1667           and for storing it, is configuration dependent. Therefore, if you
1668           say Y here, you must know the proper physical address where to
1669           store the kernel image depending on your own flash memory usage.
1670
1671           Also note that the make target becomes "make xipImage" rather than
1672           "make zImage" or "make Image".  The final kernel binary to put in
1673           ROM memory will be arch/arm/boot/xipImage.
1674
1675           If unsure, say N.
1676
1677 config XIP_PHYS_ADDR
1678         hex "XIP Kernel Physical Location"
1679         depends on XIP_KERNEL
1680         default "0x00080000"
1681         help
1682           This is the physical address in your flash memory the kernel will
1683           be linked for and stored to.  This address is dependent on your
1684           own flash usage.
1685
1686 config KEXEC
1687         bool "Kexec system call (EXPERIMENTAL)"
1688         depends on EXPERIMENTAL
1689         help
1690           kexec is a system call that implements the ability to shutdown your
1691           current kernel, and to start another kernel.  It is like a reboot
1692           but it is independent of the system firmware.   And like a reboot
1693           you can start any kernel with it, not just Linux.
1694
1695           It is an ongoing process to be certain the hardware in a machine
1696           is properly shutdown, so do not be surprised if this code does not
1697           initially work for you.  It may help to enable device hotplugging
1698           support.
1699
1700 config ATAGS_PROC
1701         bool "Export atags in procfs"
1702         depends on KEXEC
1703         default y
1704         help
1705           Should the atags used to boot the kernel be exported in an "atags"
1706           file in procfs. Useful with kexec.
1707
1708 config CRASH_DUMP
1709         bool "Build kdump crash kernel (EXPERIMENTAL)"
1710         depends on EXPERIMENTAL
1711         help
1712           Generate crash dump after being started by kexec. This should
1713           be normally only set in special crash dump kernels which are
1714           loaded in the main kernel with kexec-tools into a specially
1715           reserved region and then later executed after a crash by
1716           kdump/kexec. The crash dump kernel must be compiled to a
1717           memory address not used by the main kernel
1718
1719           For more details see Documentation/kdump/kdump.txt
1720
1721 config AUTO_ZRELADDR
1722         bool "Auto calculation of the decompressed kernel image address"
1723         depends on !ZBOOT_ROM && !ARCH_U300
1724         help
1725           ZRELADDR is the physical address where the decompressed kernel
1726           image will be placed. If AUTO_ZRELADDR is selected, the address
1727           will be determined at run-time by masking the current IP with
1728           0xf8000000. This assumes the zImage being placed in the first 128MB
1729           from start of memory.
1730
1731 endmenu
1732
1733 menu "CPU Power Management"
1734
1735 if ARCH_HAS_CPUFREQ
1736
1737 source "drivers/cpufreq/Kconfig"
1738
1739 config CPU_FREQ_IMX
1740         tristate "CPUfreq driver for i.MX CPUs"
1741         depends on ARCH_MXC && CPU_FREQ
1742         help
1743           This enables the CPUfreq driver for i.MX CPUs.
1744
1745 config CPU_FREQ_SA1100
1746         bool
1747
1748 config CPU_FREQ_SA1110
1749         bool
1750
1751 config CPU_FREQ_INTEGRATOR
1752         tristate "CPUfreq driver for ARM Integrator CPUs"
1753         depends on ARCH_INTEGRATOR && CPU_FREQ
1754         default y
1755         help
1756           This enables the CPUfreq driver for ARM Integrator CPUs.
1757
1758           For details, take a look at <file:Documentation/cpu-freq>.
1759
1760           If in doubt, say Y.
1761
1762 config CPU_FREQ_PXA
1763         bool
1764         depends on CPU_FREQ && ARCH_PXA && PXA25x
1765         default y
1766         select CPU_FREQ_DEFAULT_GOV_USERSPACE
1767
1768 config CPU_FREQ_S3C64XX
1769         bool "CPUfreq support for Samsung S3C64XX CPUs"
1770         depends on CPU_FREQ && CPU_S3C6410
1771
1772 config CPU_FREQ_S3C
1773         bool
1774         help
1775           Internal configuration node for common cpufreq on Samsung SoC
1776
1777 config CPU_FREQ_S3C24XX
1778         bool "CPUfreq driver for Samsung S3C24XX series CPUs (EXPERIMENTAL)"
1779         depends on ARCH_S3C2410 && CPU_FREQ && EXPERIMENTAL
1780         select CPU_FREQ_S3C
1781         help
1782           This enables the CPUfreq driver for the Samsung S3C24XX family
1783           of CPUs.
1784
1785           For details, take a look at <file:Documentation/cpu-freq>.
1786
1787           If in doubt, say N.
1788
1789 config CPU_FREQ_S3C24XX_PLL
1790         bool "Support CPUfreq changing of PLL frequency (EXPERIMENTAL)"
1791         depends on CPU_FREQ_S3C24XX && EXPERIMENTAL
1792         help
1793           Compile in support for changing the PLL frequency from the
1794           S3C24XX series CPUfreq driver. The PLL takes time to settle
1795           after a frequency change, so by default it is not enabled.
1796
1797           This also means that the PLL tables for the selected CPU(s) will
1798           be built which may increase the size of the kernel image.
1799
1800 config CPU_FREQ_S3C24XX_DEBUG
1801         bool "Debug CPUfreq Samsung driver core"
1802         depends on CPU_FREQ_S3C24XX
1803         help
1804           Enable s3c_freq_dbg for the Samsung S3C CPUfreq core
1805
1806 config CPU_FREQ_S3C24XX_IODEBUG
1807         bool "Debug CPUfreq Samsung driver IO timing"
1808         depends on CPU_FREQ_S3C24XX
1809         help
1810           Enable s3c_freq_iodbg for the Samsung S3C CPUfreq core
1811
1812 config CPU_FREQ_S3C24XX_DEBUGFS
1813         bool "Export debugfs for CPUFreq"
1814         depends on CPU_FREQ_S3C24XX && DEBUG_FS
1815         help
1816           Export status information via debugfs.
1817
1818 endif
1819
1820 source "drivers/cpuidle/Kconfig"
1821
1822 endmenu
1823
1824 menu "Floating point emulation"
1825
1826 comment "At least one emulation must be selected"
1827
1828 config FPE_NWFPE
1829         bool "NWFPE math emulation"
1830         depends on (!AEABI || OABI_COMPAT) && !THUMB2_KERNEL
1831         ---help---
1832           Say Y to include the NWFPE floating point emulator in the kernel.
1833           This is necessary to run most binaries. Linux does not currently
1834           support floating point hardware so you need to say Y here even if
1835           your machine has an FPA or floating point co-processor podule.
1836
1837           You may say N here if you are going to load the Acorn FPEmulator
1838           early in the bootup.
1839
1840 config FPE_NWFPE_XP
1841         bool "Support extended precision"
1842         depends on FPE_NWFPE
1843         help
1844           Say Y to include 80-bit support in the kernel floating-point
1845           emulator.  Otherwise, only 32 and 64-bit support is compiled in.
1846           Note that gcc does not generate 80-bit operations by default,
1847           so in most cases this option only enlarges the size of the
1848           floating point emulator without any good reason.
1849
1850           You almost surely want to say N here.
1851
1852 config FPE_FASTFPE
1853         bool "FastFPE math emulation (EXPERIMENTAL)"
1854         depends on (!AEABI || OABI_COMPAT) && !CPU_32v3 && EXPERIMENTAL
1855         ---help---
1856           Say Y here to include the FAST floating point emulator in the kernel.
1857           This is an experimental much faster emulator which now also has full
1858           precision for the mantissa.  It does not support any exceptions.
1859           It is very simple, and approximately 3-6 times faster than NWFPE.
1860
1861           It should be sufficient for most programs.  It may be not suitable
1862           for scientific calculations, but you have to check this for yourself.
1863           If you do not feel you need a faster FP emulation you should better
1864           choose NWFPE.
1865
1866 config VFP
1867         bool "VFP-format floating point maths"
1868         depends on CPU_V6 || CPU_ARM926T || CPU_V7 || CPU_FEROCEON
1869         help
1870           Say Y to include VFP support code in the kernel. This is needed
1871           if your hardware includes a VFP unit.
1872
1873           Please see <file:Documentation/arm/VFP/release-notes.txt> for
1874           release notes and additional status information.
1875
1876           Say N if your target does not have VFP hardware.
1877
1878 config VFPv3
1879         bool
1880         depends on VFP
1881         default y if CPU_V7
1882
1883 config NEON
1884         bool "Advanced SIMD (NEON) Extension support"
1885         depends on VFPv3 && CPU_V7
1886         help
1887           Say Y to include support code for NEON, the ARMv7 Advanced SIMD
1888           Extension.
1889
1890 endmenu
1891
1892 menu "Userspace binary formats"
1893
1894 source "fs/Kconfig.binfmt"
1895
1896 config ARTHUR
1897         tristate "RISC OS personality"
1898         depends on !AEABI
1899         help
1900           Say Y here to include the kernel code necessary if you want to run
1901           Acorn RISC OS/Arthur binaries under Linux. This code is still very
1902           experimental; if this sounds frightening, say N and sleep in peace.
1903           You can also say M here to compile this support as a module (which
1904           will be called arthur).
1905
1906 endmenu
1907
1908 menu "Power management options"
1909
1910 source "kernel/power/Kconfig"
1911
1912 config ARCH_SUSPEND_POSSIBLE
1913         def_bool y
1914
1915 endmenu
1916
1917 source "net/Kconfig"
1918
1919 source "drivers/Kconfig"
1920
1921 source "fs/Kconfig"
1922
1923 source "arch/arm/Kconfig.debug"
1924
1925 source "security/Kconfig"
1926
1927 source "crypto/Kconfig"
1928
1929 source "lib/Kconfig"