arch/powerpc/Kconfig

   1 # For a description of the syntax of this configuration file,
   2 # see Documentation/kbuild/kconfig-language.txt.
   3 #
   4
   5 mainmenu "Linux/PowerPC Kernel Configuration"
   6
   7 config PPC64
   8         bool "64-bit kernel"
   9         default n
  10         help
  11           This option selects whether a 32-bit or a 64-bit kernel
  12           will be built.
  13
  14 config PPC32
  15         bool
  16         default y if !PPC64
  17
  18 config 64BIT
  19         bool
  20         default y if PPC64
  21
  22 config PPC_MERGE
  23         def_bool y
  24
  25 config MMU
  26         bool
  27         default y
  28
  29 config GENERIC_HARDIRQS
  30         bool
  31         default y
  32
  33 config RWSEM_GENERIC_SPINLOCK
  34         bool
  35
  36 config RWSEM_XCHGADD_ALGORITHM
  37         bool
  38         default y
  39
  40 config GENERIC_HWEIGHT
  41         bool
  42         default y
  43
  44 config GENERIC_CALIBRATE_DELAY
  45         bool
  46         default y
  47
  48 config PPC
  49         bool
  50         default y
  51
  52 config EARLY_PRINTK
  53         bool
  54         default y
  55
  56 config COMPAT
  57         bool
  58         default y if PPC64
  59
  60 config SYSVIPC_COMPAT
  61         bool
  62         depends on COMPAT && SYSVIPC
  63         default y
  64
  65 # All PPC32s use generic nvram driver through ppc_md
  66 config GENERIC_NVRAM
  67         bool
  68         default y if PPC32
  69
  70 config SCHED_NO_NO_OMIT_FRAME_POINTER
  71         bool
  72         default y
  73
  74 config ARCH_MAY_HAVE_PC_FDC
  75         bool
  76         default y
  77
  78 config PPC_OF
  79         def_bool y
  80
  81 config PPC_UDBG_16550
  82         bool
  83         default n
  84
  85 config GENERIC_TBSYNC
  86         bool
  87         default y if PPC32 && SMP
  88         default n
  89
  90 config DEFAULT_UIMAGE
  91         bool
  92         help
  93           Used to allow a board to specify it wants a uImage built by default
  94         default n
  95
  96 menu "Processor support"
  97 choice
  98         prompt "Processor Type"
  99         depends on PPC32
 100         default 6xx
 101
 102 config CLASSIC32
 103         bool "6xx/7xx/74xx"
 104         select PPC_FPU
 105         select 6xx
 106         help
 107           There are four families of PowerPC chips supported.  The more common
 108           types (601, 603, 604, 740, 750, 7400), the Motorola embedded
 109           versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the AMCC
 110           embedded versions (403 and 405) and the high end 64 bit Power
 111           processors (POWER 3, POWER4, and IBM PPC970 also known as G5).
 112
 113           Unless you are building a kernel for one of the embedded processor
 114           systems, 64 bit IBM RS/6000 or an Apple G5, choose 6xx.
 115           Note that the kernel runs in 32-bit mode even on 64-bit chips.
 116
 117 config PPC_52xx
 118         bool "Freescale 52xx"
 119         select 6xx
 120         select PPC_FPU
 121
 122 config PPC_82xx
 123         bool "Freescale 82xx"
 124         select 6xx
 125         select PPC_FPU
 126
 127 config PPC_83xx
 128         bool "Freescale 83xx"
 129         select 6xx
 130         select FSL_SOC
 131         select 83xx
 132         select PPC_FPU
 133
 134 config PPC_85xx
 135         bool "Freescale 85xx"
 136         select E500
 137         select FSL_SOC
 138         select 85xx
 139
 140 config 40x
 141         bool "AMCC 40x"
 142
 143 config 44x
 144         bool "AMCC 44x"
 145
 146 config 8xx
 147         bool "Freescale 8xx"
 148
 149 config E200
 150         bool "Freescale e200"
 151
 152 endchoice
 153
 154 config POWER4_ONLY
 155         bool "Optimize for POWER4"
 156         depends on PPC64
 157         default n
 158         ---help---
 159           Cause the compiler to optimize for POWER4/POWER5/PPC970 processors.
 160           The resulting binary will not work on POWER3 or RS64 processors
 161           when compiled with binutils 2.15 or later.
 162
 163 config POWER3
 164         bool
 165         depends on PPC64
 166         default y if !POWER4_ONLY
 167
 168 config POWER4
 169         depends on PPC64
 170         def_bool y
 171
 172 config 6xx
 173         bool
 174
 175 # this is temp to handle compat with arch=ppc
 176 config 83xx
 177         bool
 178
 179 # this is temp to handle compat with arch=ppc
 180 config 85xx
 181         bool
 182
 183 config E500
 184         bool
 185
 186 config PPC_FPU
 187         bool
 188         default y if PPC64
 189
 190 config BOOKE
 191         bool
 192         depends on E200 || E500
 193         default y
 194
 195 config FSL_BOOKE
 196         bool
 197         depends on E200 || E500
 198         default y
 199
 200 config PTE_64BIT
 201         bool
 202         depends on 44x || E500
 203         default y if 44x
 204         default y if E500 && PHYS_64BIT
 205
 206 config PHYS_64BIT
 207         bool 'Large physical address support' if E500
 208         depends on 44x || E500
 209         default y if 44x
 210         ---help---
 211           This option enables kernel support for larger than 32-bit physical
 212           addresses.  This features is not be available on all e500 cores.
 213
 214           If in doubt, say N here.
 215
 216 config ALTIVEC
 217         bool "AltiVec Support"
 218         depends on CLASSIC32 || POWER4
 219         ---help---
 220           This option enables kernel support for the Altivec extensions to the
 221           PowerPC processor. The kernel currently supports saving and restoring
 222           altivec registers, and turning on the 'altivec enable' bit so user
 223           processes can execute altivec instructions.
 224
 225           This option is only usefully if you have a processor that supports
 226           altivec (G4, otherwise known as 74xx series), but does not have
 227           any affect on a non-altivec cpu (it does, however add code to the
 228           kernel).
 229
 230           If in doubt, say Y here.
 231
 232 config SPE
 233         bool "SPE Support"
 234         depends on E200 || E500
 235         default y
 236         ---help---
 237           This option enables kernel support for the Signal Processing
 238           Extensions (SPE) to the PowerPC processor. The kernel currently
 239           supports saving and restoring SPE registers, and turning on the
 240           'spe enable' bit so user processes can execute SPE instructions.
 241
 242           This option is only useful if you have a processor that supports
 243           SPE (e500, otherwise known as 85xx series), but does not have any
 244           effect on a non-spe cpu (it does, however add code to the kernel).
 245
 246           If in doubt, say Y here.
 247
 248 config PPC_STD_MMU
 249         bool
 250         depends on 6xx || POWER3 || POWER4 || PPC64
 251         default y
 252
 253 config PPC_STD_MMU_32
 254         def_bool y
 255         depends on PPC_STD_MMU && PPC32
 256
 257 config VIRT_CPU_ACCOUNTING
 258         bool "Deterministic task and CPU time accounting"
 259         depends on PPC64
 260         default y
 261         help
 262           Select this option to enable more accurate task and CPU time
 263           accounting.  This is done by reading a CPU counter on each
 264           kernel entry and exit and on transitions within the kernel
 265           between system, softirq and hardirq state, so there is a
 266           small performance impact.  This also enables accounting of
 267           stolen time on logically-partitioned systems running on
 268           IBM POWER5-based machines.
 269
 270           If in doubt, say Y here.
 271
 272 config SMP
 273         depends on PPC_STD_MMU
 274         bool "Symmetric multi-processing support"
 275         ---help---
 276           This enables support for systems with more than one CPU. If you have
 277           a system with only one CPU, say N. If you have a system with more
 278           than one CPU, say Y.  Note that the kernel does not currently
 279           support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
 280           since they have inadequate hardware support for multiprocessor
 281           operation.
 282
 283           If you say N here, the kernel will run on single and multiprocessor
 284           machines, but will use only one CPU of a multiprocessor machine. If
 285           you say Y here, the kernel will run on single-processor machines.
 286           On a single-processor machine, the kernel will run faster if you say
 287           N here.
 288
 289           If you don't know what to do here, say N.
 290
 291 config NR_CPUS
 292         int "Maximum number of CPUs (2-128)"
 293         range 2 128
 294         depends on SMP
 295         default "32" if PPC64
 296         default "4"
 297
 298 config NOT_COHERENT_CACHE
 299         bool
 300         depends on 4xx || 8xx || E200
 301         default y
 302 endmenu
 303
 304 source "init/Kconfig"
 305
 306 menu "Platform support"
 307         depends on PPC64 || CLASSIC32
 308
 309 choice
 310         prompt "Machine type"
 311         default PPC_MULTIPLATFORM
 312
 313 config PPC_MULTIPLATFORM
 314         bool "Generic desktop/server/laptop"
 315         help
 316           Select this option if configuring for an IBM pSeries or
 317           RS/6000 machine, an Apple machine, or a PReP, CHRP,
 318           Maple or Cell-based machine.
 319
 320 config PPC_ISERIES
 321         bool "IBM Legacy iSeries"
 322         depends on PPC64
 323
 324 config EMBEDDED6xx
 325         bool "Embedded 6xx/7xx/7xxx-based board"
 326         depends on PPC32 && BROKEN
 327
 328 config APUS
 329         bool "Amiga-APUS"
 330         depends on PPC32 && BROKEN
 331         help
 332           Select APUS if configuring for a PowerUP Amiga.
 333           More information is available at:
 334           <http://linux-apus.sourceforge.net/>.
 335 endchoice
 336
 337 config PPC_PSERIES
 338         depends on PPC_MULTIPLATFORM && PPC64
 339         bool "  IBM pSeries & new (POWER5-based) iSeries"
 340         select PPC_I8259
 341         select PPC_RTAS
 342         select RTAS_ERROR_LOGGING
 343         select PPC_UDBG_16550
 344         default y
 345
 346 config PPC_CHRP
 347         bool "  Common Hardware Reference Platform (CHRP) based machines"
 348         depends on PPC_MULTIPLATFORM && PPC32
 349         select PPC_I8259
 350         select PPC_INDIRECT_PCI
 351         select PPC_RTAS
 352         select PPC_MPC106
 353         select PPC_UDBG_16550
 354         default y
 355
 356 config PPC_PMAC
 357         bool "  Apple PowerMac based machines"
 358         depends on PPC_MULTIPLATFORM
 359         select PPC_INDIRECT_PCI if PPC32
 360         select PPC_MPC106 if PPC32
 361         default y
 362
 363 config PPC_PMAC64
 364         bool
 365         depends on PPC_PMAC && POWER4
 366         select U3_DART
 367         select MPIC_BROKEN_U3
 368         select GENERIC_TBSYNC
 369         select PPC_970_NAP
 370         default y
 371
 372 config PPC_PREP
 373         bool "  PowerPC Reference Platform (PReP) based machines"
 374         depends on PPC_MULTIPLATFORM && PPC32 && BROKEN
 375         select PPC_I8259
 376         select PPC_INDIRECT_PCI
 377         select PPC_UDBG_16550
 378         default y
 379
 380 config PPC_MAPLE
 381         depends on PPC_MULTIPLATFORM && PPC64
 382         bool "  Maple 970FX Evaluation Board"
 383         select U3_DART
 384         select MPIC_BROKEN_U3
 385         select GENERIC_TBSYNC
 386         select PPC_UDBG_16550
 387         select PPC_970_NAP
 388         default n
 389         help
 390           This option enables support for the Maple 970FX Evaluation Board.
 391           For more informations, refer to <http://www.970eval.com>
 392
 393 config PPC_CELL
 394         bool "  Cell Broadband Processor Architecture"
 395         depends on PPC_MULTIPLATFORM && PPC64
 396         select PPC_RTAS
 397         select MMIO_NVRAM
 398         select PPC_UDBG_16550
 399
 400 config XICS
 401         depends on PPC_PSERIES
 402         bool
 403         default y
 404
 405 config U3_DART
 406         bool
 407         depends on PPC_MULTIPLATFORM && PPC64
 408         default n
 409
 410 config MPIC
 411         depends on PPC_PSERIES || PPC_PMAC || PPC_MAPLE || PPC_CHRP
 412         bool
 413         default y
 414
 415 config PPC_RTAS
 416         bool
 417         default n
 418
 419 config RTAS_ERROR_LOGGING
 420         bool
 421         depends on PPC_RTAS
 422         default n
 423
 424 config RTAS_PROC
 425         bool "Proc interface to RTAS"
 426         depends on PPC_RTAS
 427         default y
 428
 429 config RTAS_FLASH
 430         tristate "Firmware flash interface"
 431         depends on PPC64 && RTAS_PROC
 432
 433 config MMIO_NVRAM
 434         bool
 435         default n
 436
 437 config MPIC_BROKEN_U3
 438         bool
 439         depends on PPC_MAPLE
 440         default y
 441
 442 config CELL_IIC
 443         depends on PPC_CELL
 444         bool
 445         default y
 446
 447 config IBMVIO
 448         depends on PPC_PSERIES || PPC_ISERIES
 449         bool
 450         default y
 451
 452 config IBMEBUS
 453         depends on PPC_PSERIES
 454         bool "Support for GX bus based adapters"
 455         help
 456           Bus device driver for GX bus based adapters.
 457
 458 config PPC_MPC106
 459         bool
 460         default n
 461
 462 config PPC_970_NAP
 463         bool
 464         default n
 465
 466 source "drivers/cpufreq/Kconfig"
 467
 468 config CPU_FREQ_PMAC
 469         bool "Support for Apple PowerBooks"
 470         depends on CPU_FREQ && ADB_PMU && PPC32
 471         select CPU_FREQ_TABLE
 472         help
 473           This adds support for frequency switching on Apple PowerBooks,
 474           this currently includes some models of iBook & Titanium
 475           PowerBook.
 476
 477 config CPU_FREQ_PMAC64
 478         bool "Support for some Apple G5s"
 479         depends on CPU_FREQ && PMAC_SMU && PPC64
 480         select CPU_FREQ_TABLE
 481         help
 482           This adds support for frequency switching on Apple iMac G5,
 483           and some of the more recent desktop G5 machines as well.
 484
 485 config PPC601_SYNC_FIX
 486         bool "Workarounds for PPC601 bugs"
 487         depends on 6xx && (PPC_PREP || PPC_PMAC)
 488         help
 489           Some versions of the PPC601 (the first PowerPC chip) have bugs which
 490           mean that extra synchronization instructions are required near
 491           certain instructions, typically those that make major changes to the
 492           CPU state.  These extra instructions reduce performance slightly.
 493           If you say N here, these extra instructions will not be included,
 494           resulting in a kernel which will run faster but may not run at all
 495           on some systems with the PPC601 chip.
 496
 497           If in doubt, say Y here.
 498
 499 config TAU
 500         bool "On-chip CPU temperature sensor support"
 501         depends on 6xx
 502         help
 503           G3 and G4 processors have an on-chip temperature sensor called the
 504           'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die
 505           temperature within 2-4 degrees Celsius. This option shows the current
 506           on-die temperature in /proc/cpuinfo if the cpu supports it.
 507
 508           Unfortunately, on some chip revisions, this sensor is very inaccurate
 509           and in many cases, does not work at all, so don't assume the cpu
 510           temp is actually what /proc/cpuinfo says it is.
 511
 512 config TAU_INT
 513         bool "Interrupt driven TAU driver (DANGEROUS)"
 514         depends on TAU
 515         ---help---
 516           The TAU supports an interrupt driven mode which causes an interrupt
 517           whenever the temperature goes out of range. This is the fastest way
 518           to get notified the temp has exceeded a range. With this option off,
 519           a timer is used to re-check the temperature periodically.
 520
 521           However, on some cpus it appears that the TAU interrupt hardware
 522           is buggy and can cause a situation which would lead unexplained hard
 523           lockups.
 524
 525           Unless you are extending the TAU driver, or enjoy kernel/hardware
 526           debugging, leave this option off.
 527
 528 config TAU_AVERAGE
 529         bool "Average high and low temp"
 530         depends on TAU
 531         ---help---
 532           The TAU hardware can compare the temperature to an upper and lower
 533           bound.  The default behavior is to show both the upper and lower
 534           bound in /proc/cpuinfo. If the range is large, the temperature is
 535           either changing a lot, or the TAU hardware is broken (likely on some
 536           G4's). If the range is small (around 4 degrees), the temperature is
 537           relatively stable.  If you say Y here, a single temperature value,
 538           halfway between the upper and lower bounds, will be reported in
 539           /proc/cpuinfo.
 540
 541           If in doubt, say N here.
 542 endmenu
 543
 544 source arch/powerpc/platforms/embedded6xx/Kconfig
 545 source arch/powerpc/platforms/4xx/Kconfig
 546 source arch/powerpc/platforms/83xx/Kconfig
 547 source arch/powerpc/platforms/85xx/Kconfig
 548 source arch/powerpc/platforms/8xx/Kconfig
 549 source arch/powerpc/platforms/cell/Kconfig
 550
 551 menu "Kernel options"
 552
 553 config HIGHMEM
 554         bool "High memory support"
 555         depends on PPC32
 556
 557 source kernel/Kconfig.hz
 558 source kernel/Kconfig.preempt
 559 source "fs/Kconfig.binfmt"
 560
 561 # We optimistically allocate largepages from the VM, so make the limit
 562 # large enough (16MB). This badly named config option is actually
 563 # max order + 1
 564 config FORCE_MAX_ZONEORDER
 565         int
 566         depends on PPC64
 567         default "9" if PPC_64K_PAGES
 568         default "13"
 569
 570 config MATH_EMULATION
 571         bool "Math emulation"
 572         depends on 4xx || 8xx || E200 || E500
 573         ---help---
 574           Some PowerPC chips designed for embedded applications do not have
 575           a floating-point unit and therefore do not implement the
 576           floating-point instructions in the PowerPC instruction set.  If you
 577           say Y here, the kernel will include code to emulate a floating-point
 578           unit, which will allow programs that use floating-point
 579           instructions to run.
 580
 581 config IOMMU_VMERGE
 582         bool "Enable IOMMU virtual merging (EXPERIMENTAL)"
 583         depends on EXPERIMENTAL && PPC64
 584         default n
 585         help
 586           Cause IO segments sent to a device for DMA to be merged virtually
 587           by the IOMMU when they happen to have been allocated contiguously.
 588           This doesn't add pressure to the IOMMU allocator. However, some
 589           drivers don't support getting large merged segments coming back
 590           from *_map_sg(). Say Y if you know the drivers you are using are
 591           properly handling this case.
 592
 593 config HOTPLUG_CPU
 594         bool "Support for enabling/disabling CPUs"
 595         depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
 596         ---help---
 597           Say Y here to be able to disable and re-enable individual
 598           CPUs at runtime on SMP machines.
 599
 600           Say N if you are unsure.
 601
 602 config KEXEC
 603         bool "kexec system call (EXPERIMENTAL)"
 604         depends on PPC_MULTIPLATFORM && EXPERIMENTAL
 605         help
 606           kexec is a system call that implements the ability to shutdown your
 607           current kernel, and to start another kernel.  It is like a reboot
 608           but it is indepedent of the system firmware.   And like a reboot
 609           you can start any kernel with it, not just Linux.
 610
 611           The name comes from the similiarity to the exec system call.
 612
 613           It is an ongoing process to be certain the hardware in a machine
 614           is properly shutdown, so do not be surprised if this code does not
 615           initially work for you.  It may help to enable device hotplugging
 616           support.  As of this writing the exact hardware interface is
 617           strongly in flux, so no good recommendation can be made.
 618
 619 config CRASH_DUMP
 620         bool "Build a kdump crash kernel (EXPERIMENTAL)"
 621         depends on PPC_MULTIPLATFORM && PPC64 && EXPERIMENTAL
 622         help
 623           Build a kernel suitable for use as a kdump capture kernel.
 624           The kernel will be linked at a different address than normal, and
 625           so can only be used for Kdump.
 626
 627           Don't change this unless you know what you are doing.
 628
 629 config EMBEDDEDBOOT
 630         bool
 631         depends on 8xx || 8260
 632         default y
 633
 634 config PC_KEYBOARD
 635         bool "PC PS/2 style Keyboard"
 636         depends on 4xx || CPM2
 637
 638 config PPCBUG_NVRAM
 639         bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
 640         default y if PPC_PREP
 641
 642 config IRQ_ALL_CPUS
 643         bool "Distribute interrupts on all CPUs by default"
 644         depends on SMP && !MV64360
 645         help
 646           This option gives the kernel permission to distribute IRQs across
 647           multiple CPUs.  Saying N here will route all IRQs to the first
 648           CPU.  Generally saying Y is safe, although some problems have been
 649           reported with SMP Power Macintoshes with this option enabled.
 650
 651 source "arch/powerpc/platforms/pseries/Kconfig"
 652
 653 config NUMA
 654         bool "NUMA support"
 655         depends on PPC64
 656         default y if SMP && PPC_PSERIES
 657
 658 config NODES_SHIFT
 659         int
 660         default "4"
 661         depends on NEED_MULTIPLE_NODES
 662
 663 config ARCH_SELECT_MEMORY_MODEL
 664         def_bool y
 665         depends on PPC64
 666
 667 config ARCH_FLATMEM_ENABLE
 668         def_bool y
 669         depends on (PPC64 && !NUMA) || PPC32
 670
 671 config ARCH_SPARSEMEM_ENABLE
 672         def_bool y
 673         depends on PPC64
 674
 675 config ARCH_SPARSEMEM_DEFAULT
 676         def_bool y
 677         depends on SMP && PPC_PSERIES
 678
 679 source "mm/Kconfig"
 680
 681 config HAVE_ARCH_EARLY_PFN_TO_NID
 682         def_bool y
 683         depends on NEED_MULTIPLE_NODES
 684
 685 config ARCH_MEMORY_PROBE
 686         def_bool y
 687         depends on MEMORY_HOTPLUG
 688
 689 config PPC_64K_PAGES
 690         bool "64k page size"
 691         depends on PPC64
 692         help
 693           This option changes the kernel logical page size to 64k. On machines
 694           without processor support for 64k pages, the kernel will simulate
 695           them by loading each individual 4k page on demand transparently,
 696           while on hardware with such support, it will be used to map
 697           normal application pages.
 698
 699 config SCHED_SMT
 700         bool "SMT (Hyperthreading) scheduler support"
 701         depends on PPC64 && SMP
 702         default off
 703         help
 704           SMT scheduler support improves the CPU scheduler's decision making
 705           when dealing with POWER5 cpus at a cost of slightly increased
 706           overhead in some places. If unsure say N here.
 707
 708 config PROC_DEVICETREE
 709         bool "Support for device tree in /proc"
 710         depends on PROC_FS
 711         help
 712           This option adds a device-tree directory under /proc which contains
 713           an image of the device tree that the kernel copies from Open
 714           Firmware or other boot firmware. If unsure, say Y here.
 715
 716 source "arch/powerpc/platforms/prep/Kconfig"
 717
 718 config CMDLINE_BOOL
 719         bool "Default bootloader kernel arguments"
 720         depends on !PPC_ISERIES
 721
 722 config CMDLINE
 723         string "Initial kernel command string"
 724         depends on CMDLINE_BOOL
 725         default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
 726         help
 727           On some platforms, there is currently no way for the boot loader to
 728           pass arguments to the kernel. For these platforms, you can supply
 729           some command-line options at build time by entering them here.  In
 730           most cases you will need to specify the root device here.
 731
 732 if !44x || BROKEN
 733 source kernel/power/Kconfig
 734 endif
 735
 736 config SECCOMP
 737         bool "Enable seccomp to safely compute untrusted bytecode"
 738         depends on PROC_FS
 739         default y
 740         help
 741           This kernel feature is useful for number crunching applications
 742           that may need to compute untrusted bytecode during their
 743           execution. By using pipes or other transports made available to
 744           the process as file descriptors supporting the read/write
 745           syscalls, it's possible to isolate those applications in
 746           their own address space using seccomp. Once seccomp is
 747           enabled via /proc/<pid>/seccomp, it cannot be disabled
 748           and the task is only allowed to execute a few safe syscalls
 749           defined by each seccomp mode.
 750
 751           If unsure, say Y. Only embedded should say N here.
 752
 753 endmenu
 754
 755 config ISA_DMA_API
 756         bool
 757         default y
 758
 759 menu "Bus options"
 760
 761 config ISA
 762         bool "Support for ISA-bus hardware"
 763         depends on PPC_PREP || PPC_CHRP
 764         select PPC_I8259
 765         help
 766           Find out whether you have ISA slots on your motherboard.  ISA is the
 767           name of a bus system, i.e. the way the CPU talks to the other stuff
 768           inside your box.  If you have an Apple machine, say N here; if you
 769           have an IBM RS/6000 or pSeries machine or a PReP machine, say Y.  If
 770           you have an embedded board, consult your board documentation.
 771
 772 config GENERIC_ISA_DMA
 773         bool
 774         depends on PPC64 || POWER4 || 6xx && !CPM2
 775         default y
 776
 777 config PPC_I8259
 778         bool
 779         default n
 780
 781 config PPC_INDIRECT_PCI
 782         bool
 783         depends on PCI
 784         default y if 40x || 44x
 785         default n
 786
 787 config EISA
 788         bool
 789
 790 config SBUS
 791         bool
 792
 793 config FSL_SOC
 794         bool
 795
 796 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
 797 config MCA
 798         bool
 799
 800 config PCI
 801         bool "PCI support" if 40x || CPM2 || PPC_83xx || PPC_85xx || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES)
 802         default y if !40x && !CPM2 && !8xx && !APUS && !PPC_83xx && !PPC_85xx
 803         default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS
 804         default PCI_QSPAN if !4xx && !CPM2 && 8xx
 805         help
 806           Find out whether your system includes a PCI bus. PCI is the name of
 807           a bus system, i.e. the way the CPU talks to the other stuff inside
 808           your box.  If you say Y here, the kernel will include drivers and
 809           infrastructure code to support PCI bus devices.
 810
 811 config PCI_DOMAINS
 812         bool
 813         default PCI
 814
 815 config PCI_QSPAN
 816         bool "QSpan PCI"
 817         depends on !4xx && !CPM2 && 8xx
 818         select PPC_I8259
 819         help
 820           Say Y here if you have a system based on a Motorola 8xx-series
 821           embedded processor with a QSPAN PCI interface, otherwise say N.
 822
 823 config PCI_8260
 824         bool
 825         depends on PCI && 8260
 826         select PPC_INDIRECT_PCI
 827         default y
 828
 829 config 8260_PCI9
 830         bool "  Enable workaround for MPC826x erratum PCI 9"
 831         depends on PCI_8260 && !ADS8272
 832         default y
 833
 834 choice
 835         prompt "  IDMA channel for PCI 9 workaround"
 836         depends on 8260_PCI9
 837
 838 config 8260_PCI9_IDMA1
 839         bool "IDMA1"
 840
 841 config 8260_PCI9_IDMA2
 842         bool "IDMA2"
 843
 844 config 8260_PCI9_IDMA3
 845         bool "IDMA3"
 846
 847 config 8260_PCI9_IDMA4
 848         bool "IDMA4"
 849
 850 endchoice
 851
 852 source "drivers/pci/Kconfig"
 853
 854 source "drivers/pcmcia/Kconfig"
 855
 856 source "drivers/pci/hotplug/Kconfig"
 857
 858 endmenu
 859
 860 menu "Advanced setup"
 861         depends on PPC32
 862
 863 config ADVANCED_OPTIONS
 864         bool "Prompt for advanced kernel configuration options"
 865         help
 866           This option will enable prompting for a variety of advanced kernel
 867           configuration options.  These options can cause the kernel to not
 868           work if they are set incorrectly, but can be used to optimize certain
 869           aspects of kernel memory management.
 870
 871           Unless you know what you are doing, say N here.
 872
 873 comment "Default settings for advanced configuration options are used"
 874         depends on !ADVANCED_OPTIONS
 875
 876 config HIGHMEM_START_BOOL
 877         bool "Set high memory pool address"
 878         depends on ADVANCED_OPTIONS && HIGHMEM
 879         help
 880           This option allows you to set the base address of the kernel virtual
 881           area used to map high memory pages.  This can be useful in
 882           optimizing the layout of kernel virtual memory.
 883
 884           Say N here unless you know what you are doing.
 885
 886 config HIGHMEM_START
 887         hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
 888         default "0xfe000000"
 889
 890 config LOWMEM_SIZE_BOOL
 891         bool "Set maximum low memory"
 892         depends on ADVANCED_OPTIONS
 893         help
 894           This option allows you to set the maximum amount of memory which
 895           will be used as "low memory", that is, memory which the kernel can
 896           access directly, without having to set up a kernel virtual mapping.
 897           This can be useful in optimizing the layout of kernel virtual
 898           memory.
 899
 900           Say N here unless you know what you are doing.
 901
 902 config LOWMEM_SIZE
 903         hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
 904         default "0x30000000"
 905
 906 config KERNEL_START_BOOL
 907         bool "Set custom kernel base address"
 908         depends on ADVANCED_OPTIONS
 909         help
 910           This option allows you to set the kernel virtual address at which
 911           the kernel will map low memory (the kernel image will be linked at
 912           this address).  This can be useful in optimizing the virtual memory
 913           layout of the system.
 914
 915           Say N here unless you know what you are doing.
 916
 917 config KERNEL_START
 918         hex "Virtual address of kernel base" if KERNEL_START_BOOL
 919         default "0xc0000000"
 920
 921 config TASK_SIZE_BOOL
 922         bool "Set custom user task size"
 923         depends on ADVANCED_OPTIONS
 924         help
 925           This option allows you to set the amount of virtual address space
 926           allocated to user tasks.  This can be useful in optimizing the
 927           virtual memory layout of the system.
 928
 929           Say N here unless you know what you are doing.
 930
 931 config TASK_SIZE
 932         hex "Size of user task space" if TASK_SIZE_BOOL
 933         default "0x80000000"
 934
 935 config CONSISTENT_START_BOOL
 936         bool "Set custom consistent memory pool address"
 937         depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
 938         help
 939           This option allows you to set the base virtual address
 940           of the the consistent memory pool.  This pool of virtual
 941           memory is used to make consistent memory allocations.
 942
 943 config CONSISTENT_START
 944         hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL
 945         default "0xff100000" if NOT_COHERENT_CACHE
 946
 947 config CONSISTENT_SIZE_BOOL
 948         bool "Set custom consistent memory pool size"
 949         depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
 950         help
 951           This option allows you to set the size of the the
 952           consistent memory pool.  This pool of virtual memory
 953           is used to make consistent memory allocations.
 954
 955 config CONSISTENT_SIZE
 956         hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
 957         default "0x00200000" if NOT_COHERENT_CACHE
 958
 959 config BOOT_LOAD_BOOL
 960         bool "Set the boot link/load address"
 961         depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM
 962         help
 963           This option allows you to set the initial load address of the zImage
 964           or zImage.initrd file.  This can be useful if you are on a board
 965           which has a small amount of memory.
 966
 967           Say N here unless you know what you are doing.
 968
 969 config BOOT_LOAD
 970         hex "Link/load address for booting" if BOOT_LOAD_BOOL
 971         default "0x00400000" if 40x || 8xx || 8260
 972         default "0x01000000" if 44x
 973         default "0x00800000"
 974
 975 config PIN_TLB
 976         bool "Pinned Kernel TLBs (860 ONLY)"
 977         depends on ADVANCED_OPTIONS && 8xx
 978 endmenu
 979
 980 if PPC64
 981 config KERNEL_START
 982         hex
 983         default "0xc000000000000000"
 984 endif
 985
 986 source "net/Kconfig"
 987
 988 source "drivers/Kconfig"
 989
 990 source "fs/Kconfig"
 991
 992 # XXX source "arch/ppc/8xx_io/Kconfig"
 993
 994 # XXX source "arch/ppc/8260_io/Kconfig"
 995
 996 source "arch/powerpc/platforms/iseries/Kconfig"
 997
 998 source "lib/Kconfig"
 999
1000 menu "Instrumentation Support"
1001         depends on EXPERIMENTAL
1002
1003 source "arch/powerpc/oprofile/Kconfig"
1004
1005 config KPROBES
1006         bool "Kprobes (EXPERIMENTAL)"
1007         depends on PPC64 && EXPERIMENTAL && MODULES
1008         help
1009           Kprobes allows you to trap at almost any kernel address and
1010           execute a callback function.  register_kprobe() establishes
1011           a probepoint and specifies the callback.  Kprobes is useful
1012           for kernel debugging, non-intrusive instrumentation and testing.
1013           If in doubt, say "N".
1014 endmenu
1015
1016 source "arch/powerpc/Kconfig.debug"
1017
1018 source "security/Kconfig"
1019
1020 config KEYS_COMPAT
1021         bool
1022         depends on COMPAT && KEYS
1023         default y
1024
1025 source "crypto/Kconfig"