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