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 UID16
  30         bool
  31
  32 config GENERIC_HARDIRQS
  33         bool
  34         default y
  35
  36 config RWSEM_GENERIC_SPINLOCK
  37         bool
  38
  39 config RWSEM_XCHGADD_ALGORITHM
  40         bool
  41         default y
  42
  43 config GENERIC_CALIBRATE_DELAY
  44         bool
  45         default y
  46
  47 config PPC
  48         bool
  49         default y
  50
  51 config EARLY_PRINTK
  52         bool
  53         default y if PPC64
  54
  55 config COMPAT
  56         bool
  57         default y if PPC64
  58
  59 config SYSVIPC_COMPAT
  60         bool
  61         depends on COMPAT && SYSVIPC
  62         default y
  63
  64 # All PPC32s use generic nvram driver through ppc_md
  65 config GENERIC_NVRAM
  66         bool
  67         default y if PPC32
  68
  69 config SCHED_NO_NO_OMIT_FRAME_POINTER
  70         bool
  71         default y
  72
  73 config ARCH_MAY_HAVE_PC_FDC
  74         bool
  75         default y
  76
  77 menu "Processor support"
  78 choice
  79         prompt "Processor Type"
  80         depends on PPC32
  81         default 6xx
  82
  83 config 6xx
  84         bool "6xx/7xx/74xx"
  85         select PPC_FPU
  86         help
  87           There are four families of PowerPC chips supported.  The more common
  88           types (601, 603, 604, 740, 750, 7400), the Motorola embedded
  89           versions (821, 823, 850, 855, 860, 52xx, 82xx, 83xx), the AMCC
  90           embedded versions (403 and 405) and the high end 64 bit Power
  91           processors (POWER 3, POWER4, and IBM PPC970 also known as G5).
  92
  93           Unless you are building a kernel for one of the embedded processor
  94           systems, 64 bit IBM RS/6000 or an Apple G5, choose 6xx.
  95           Note that the kernel runs in 32-bit mode even on 64-bit chips.
  96
  97 config PPC_52xx
  98         bool "Freescale 52xx"
  99
 100 config PPC_82xx
 101         bool "Freescale 82xx"
 102
 103 config PPC_83xx
 104         bool "Freescale 83xx"
 105
 106 config 40x
 107         bool "AMCC 40x"
 108
 109 config 44x
 110         bool "AMCC 44x"
 111
 112 config 8xx
 113         bool "Freescale 8xx"
 114
 115 config E200
 116         bool "Freescale e200"
 117
 118 config E500
 119         bool "Freescale e500"
 120 endchoice
 121
 122 config POWER4_ONLY
 123         bool "Optimize for POWER4"
 124         depends on PPC64
 125         default n
 126         ---help---
 127           Cause the compiler to optimize for POWER4/POWER5/PPC970 processors.
 128           The resulting binary will not work on POWER3 or RS64 processors
 129           when compiled with binutils 2.15 or later.
 130
 131 config POWER3
 132         bool
 133         depends on PPC64
 134         default y if !POWER4_ONLY
 135
 136 config POWER4
 137         depends on PPC64
 138         def_bool y
 139
 140 config PPC_FPU
 141         bool
 142         default y if PPC64
 143
 144 config BOOKE
 145         bool
 146         depends on E200 || E500
 147         default y
 148
 149 config FSL_BOOKE
 150         bool
 151         depends on E200 || E500
 152         default y
 153
 154 config PTE_64BIT
 155         bool
 156         depends on 44x || E500
 157         default y if 44x
 158         default y if E500 && PHYS_64BIT
 159
 160 config PHYS_64BIT
 161         bool 'Large physical address support' if E500
 162         depends on 44x || E500
 163         default y if 44x
 164         ---help---
 165           This option enables kernel support for larger than 32-bit physical
 166           addresses.  This features is not be available on all e500 cores.
 167
 168           If in doubt, say N here.
 169
 170 config ALTIVEC
 171         bool "AltiVec Support"
 172         depends on 6xx || POWER4
 173         ---help---
 174           This option enables kernel support for the Altivec extensions to the
 175           PowerPC processor. The kernel currently supports saving and restoring
 176           altivec registers, and turning on the 'altivec enable' bit so user
 177           processes can execute altivec instructions.
 178
 179           This option is only usefully if you have a processor that supports
 180           altivec (G4, otherwise known as 74xx series), but does not have
 181           any affect on a non-altivec cpu (it does, however add code to the
 182           kernel).
 183
 184           If in doubt, say Y here.
 185
 186 config SPE
 187         bool "SPE Support"
 188         depends on E200 || E500
 189         ---help---
 190           This option enables kernel support for the Signal Processing
 191           Extensions (SPE) to the PowerPC processor. The kernel currently
 192           supports saving and restoring SPE registers, and turning on the
 193           'spe enable' bit so user processes can execute SPE instructions.
 194
 195           This option is only useful if you have a processor that supports
 196           SPE (e500, otherwise known as 85xx series), but does not have any
 197           effect on a non-spe cpu (it does, however add code to the kernel).
 198
 199           If in doubt, say Y here.
 200
 201 config PPC_STD_MMU
 202         bool
 203         depends on 6xx || POWER3 || POWER4 || PPC64
 204         default y
 205
 206 config PPC_STD_MMU_32
 207         def_bool y
 208         depends on PPC_STD_MMU && PPC32
 209
 210 config SMP
 211         depends on PPC_STD_MMU
 212         bool "Symmetric multi-processing support"
 213         ---help---
 214           This enables support for systems with more than one CPU. If you have
 215           a system with only one CPU, say N. If you have a system with more
 216           than one CPU, say Y.  Note that the kernel does not currently
 217           support SMP machines with 603/603e/603ev or PPC750 ("G3") processors
 218           since they have inadequate hardware support for multiprocessor
 219           operation.
 220
 221           If you say N here, the kernel will run on single and multiprocessor
 222           machines, but will use only one CPU of a multiprocessor machine. If
 223           you say Y here, the kernel will run on single-processor machines.
 224           On a single-processor machine, the kernel will run faster if you say
 225           N here.
 226
 227           If you don't know what to do here, say N.
 228
 229 config NR_CPUS
 230         int "Maximum number of CPUs (2-32)"
 231         range 2 128
 232         depends on SMP
 233         default "32" if PPC64
 234         default "4"
 235
 236 config NOT_COHERENT_CACHE
 237         bool
 238         depends on 4xx || 8xx || E200
 239         default y
 240 endmenu
 241
 242 source "init/Kconfig"
 243
 244 menu "Platform support"
 245         depends on PPC64 || 6xx
 246
 247 choice
 248         prompt "Machine type"
 249         default PPC_MULTIPLATFORM
 250
 251 config PPC_MULTIPLATFORM
 252         bool "Generic desktop/server/laptop"
 253         help
 254           Select this option if configuring for an IBM pSeries or
 255           RS/6000 machine, an Apple machine, or a PReP, CHRP,
 256           Maple or Cell-based machine.
 257
 258 config PPC_ISERIES
 259         bool "IBM Legacy iSeries"
 260         depends on PPC64
 261
 262 config EMBEDDED6xx
 263         bool "Embedded 6xx/7xx/7xxx-based board"
 264         depends on PPC32
 265
 266 config APUS
 267         bool "Amiga-APUS"
 268         depends on PPC32 && BROKEN
 269         help
 270           Select APUS if configuring for a PowerUP Amiga.
 271           More information is available at:
 272           <http://linux-apus.sourceforge.net/>.
 273 endchoice
 274
 275 config PPC_PSERIES
 276         depends on PPC_MULTIPLATFORM && PPC64
 277         bool "  IBM pSeries & new (POWER5-based) iSeries"
 278         select PPC_I8259
 279         select PPC_RTAS
 280         select RTAS_ERROR_LOGGING
 281         default y
 282
 283 config PPC_CHRP
 284         bool "  Common Hardware Reference Platform (CHRP) based machines"
 285         depends on PPC_MULTIPLATFORM && PPC32
 286         select PPC_I8259
 287         select PPC_INDIRECT_PCI
 288         select PPC_RTAS
 289         select PPC_MPC106
 290         default y
 291
 292 config PPC_PMAC
 293         bool "  Apple PowerMac based machines"
 294         depends on PPC_MULTIPLATFORM
 295         select PPC_INDIRECT_PCI if PPC32
 296         select PPC_MPC106 if PPC32
 297         default y
 298
 299 config PPC_PMAC64
 300         bool
 301         depends on PPC_PMAC && POWER4
 302         select U3_DART
 303         select GENERIC_TBSYNC
 304         default y
 305
 306 config PPC_PREP
 307         bool "  PowerPC Reference Platform (PReP) based machines"
 308         depends on PPC_MULTIPLATFORM && PPC32
 309         select PPC_I8259
 310         select PPC_INDIRECT_PCI
 311         default y
 312
 313 config PPC_MAPLE
 314         depends on PPC_MULTIPLATFORM && PPC64
 315         bool "  Maple 970FX Evaluation Board"
 316         select U3_DART
 317         select MPIC_BROKEN_U3
 318         select GENERIC_TBSYNC
 319         default n
 320         help
 321           This option enables support for the Maple 970FX Evaluation Board.
 322           For more informations, refer to <http://www.970eval.com>
 323
 324 config PPC_CELL
 325         bool "  Cell Broadband Processor Architecture"
 326         depends on PPC_MULTIPLATFORM && PPC64
 327         select PPC_RTAS
 328         select MMIO_NVRAM
 329
 330 config PPC_OF
 331         bool
 332         depends on PPC_MULTIPLATFORM    # for now
 333         default y
 334
 335 config XICS
 336         depends on PPC_PSERIES
 337         bool
 338         default y
 339
 340 config U3_DART
 341         bool
 342         depends on PPC_MULTIPLATFORM && PPC64
 343         default n
 344
 345 config MPIC
 346         depends on PPC_PSERIES || PPC_PMAC || PPC_MAPLE || PPC_CHRP
 347         bool
 348         default y
 349
 350 config PPC_RTAS
 351         bool
 352         default n
 353
 354 config RTAS_ERROR_LOGGING
 355         bool
 356         depends on PPC_RTAS
 357         default n
 358
 359 config RTAS_PROC
 360         bool "Proc interface to RTAS"
 361         depends on PPC_RTAS
 362         default y
 363
 364 config RTAS_FLASH
 365         tristate "Firmware flash interface"
 366         depends on PPC64 && RTAS_PROC
 367
 368 config MMIO_NVRAM
 369         bool
 370         default n
 371
 372 config MPIC_BROKEN_U3
 373         bool
 374         depends on PPC_MAPLE
 375         default y
 376
 377 config CELL_IIC
 378         depends on PPC_CELL
 379         bool
 380         default y
 381
 382 config IBMVIO
 383         depends on PPC_PSERIES || PPC_ISERIES
 384         bool
 385         default y
 386
 387 config PPC_MPC106
 388         bool
 389         default n
 390
 391 config GENERIC_TBSYNC
 392         bool
 393         default y if CONFIG_PPC32 && CONFIG_SMP
 394         default n
 395
 396 source "drivers/cpufreq/Kconfig"
 397
 398 config CPU_FREQ_PMAC
 399         bool "Support for Apple PowerBooks"
 400         depends on CPU_FREQ && ADB_PMU && PPC32
 401         select CPU_FREQ_TABLE
 402         help
 403           This adds support for frequency switching on Apple PowerBooks,
 404           this currently includes some models of iBook & Titanium
 405           PowerBook.
 406
 407 config CPU_FREQ_PMAC64
 408         bool "Support for some Apple G5s"
 409         depends on CPU_FREQ && PMAC_SMU && PPC64
 410         select CPU_FREQ_TABLE
 411         help
 412           This adds support for frequency switching on Apple iMac G5,
 413           and some of the more recent desktop G5 machines as well.
 414
 415 config PPC601_SYNC_FIX
 416         bool "Workarounds for PPC601 bugs"
 417         depends on 6xx && (PPC_PREP || PPC_PMAC)
 418         help
 419           Some versions of the PPC601 (the first PowerPC chip) have bugs which
 420           mean that extra synchronization instructions are required near
 421           certain instructions, typically those that make major changes to the
 422           CPU state.  These extra instructions reduce performance slightly.
 423           If you say N here, these extra instructions will not be included,
 424           resulting in a kernel which will run faster but may not run at all
 425           on some systems with the PPC601 chip.
 426
 427           If in doubt, say Y here.
 428
 429 config TAU
 430         bool "Thermal Management Support"
 431         depends on 6xx
 432         help
 433           G3 and G4 processors have an on-chip temperature sensor called the
 434           'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die
 435           temperature within 2-4 degrees Celsius. This option shows the current
 436           on-die temperature in /proc/cpuinfo if the cpu supports it.
 437
 438           Unfortunately, on some chip revisions, this sensor is very inaccurate
 439           and in some cases, does not work at all, so don't assume the cpu
 440           temp is actually what /proc/cpuinfo says it is.
 441
 442 config TAU_INT
 443         bool "Interrupt driven TAU driver (DANGEROUS)"
 444         depends on TAU
 445         ---help---
 446           The TAU supports an interrupt driven mode which causes an interrupt
 447           whenever the temperature goes out of range. This is the fastest way
 448           to get notified the temp has exceeded a range. With this option off,
 449           a timer is used to re-check the temperature periodically.
 450
 451           However, on some cpus it appears that the TAU interrupt hardware
 452           is buggy and can cause a situation which would lead unexplained hard
 453           lockups.
 454
 455           Unless you are extending the TAU driver, or enjoy kernel/hardware
 456           debugging, leave this option off.
 457
 458 config TAU_AVERAGE
 459         bool "Average high and low temp"
 460         depends on TAU
 461         ---help---
 462           The TAU hardware can compare the temperature to an upper and lower
 463           bound.  The default behavior is to show both the upper and lower
 464           bound in /proc/cpuinfo. If the range is large, the temperature is
 465           either changing a lot, or the TAU hardware is broken (likely on some
 466           G4's). If the range is small (around 4 degrees), the temperature is
 467           relatively stable.  If you say Y here, a single temperature value,
 468           halfway between the upper and lower bounds, will be reported in
 469           /proc/cpuinfo.
 470
 471           If in doubt, say N here.
 472 endmenu
 473
 474 source arch/powerpc/platforms/embedded6xx/Kconfig
 475 source arch/powerpc/platforms/4xx/Kconfig
 476 source arch/powerpc/platforms/85xx/Kconfig
 477 source arch/powerpc/platforms/8xx/Kconfig
 478
 479 menu "Kernel options"
 480
 481 config HIGHMEM
 482         bool "High memory support"
 483         depends on PPC32
 484
 485 source kernel/Kconfig.hz
 486 source kernel/Kconfig.preempt
 487 source "fs/Kconfig.binfmt"
 488
 489 # We optimistically allocate largepages from the VM, so make the limit
 490 # large enough (16MB). This badly named config option is actually
 491 # max order + 1
 492 config FORCE_MAX_ZONEORDER
 493         int
 494         depends on PPC64
 495         default "9" if PPC_64K_PAGES
 496         default "13"
 497
 498 config MATH_EMULATION
 499         bool "Math emulation"
 500         depends on 4xx || 8xx || E200 || E500
 501         ---help---
 502           Some PowerPC chips designed for embedded applications do not have
 503           a floating-point unit and therefore do not implement the
 504           floating-point instructions in the PowerPC instruction set.  If you
 505           say Y here, the kernel will include code to emulate a floating-point
 506           unit, which will allow programs that use floating-point
 507           instructions to run.
 508
 509 config IOMMU_VMERGE
 510         bool "Enable IOMMU virtual merging (EXPERIMENTAL)"
 511         depends on EXPERIMENTAL && PPC64
 512         default n
 513         help
 514           Cause IO segments sent to a device for DMA to be merged virtually
 515           by the IOMMU when they happen to have been allocated contiguously.
 516           This doesn't add pressure to the IOMMU allocator. However, some
 517           drivers don't support getting large merged segments coming back
 518           from *_map_sg(). Say Y if you know the drivers you are using are
 519           properly handling this case.
 520
 521 config HOTPLUG_CPU
 522         bool "Support for enabling/disabling CPUs"
 523         depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
 524         ---help---
 525           Say Y here to be able to disable and re-enable individual
 526           CPUs at runtime on SMP machines.
 527
 528           Say N if you are unsure.
 529
 530 config KEXEC
 531         bool "kexec system call (EXPERIMENTAL)"
 532         depends on PPC_MULTIPLATFORM && EXPERIMENTAL
 533         help
 534           kexec is a system call that implements the ability to shutdown your
 535           current kernel, and to start another kernel.  It is like a reboot
 536           but it is indepedent of the system firmware.   And like a reboot
 537           you can start any kernel with it, not just Linux.
 538
 539           The name comes from the similiarity to the exec system call.
 540
 541           It is an ongoing process to be certain the hardware in a machine
 542           is properly shutdown, so do not be surprised if this code does not
 543           initially work for you.  It may help to enable device hotplugging
 544           support.  As of this writing the exact hardware interface is
 545           strongly in flux, so no good recommendation can be made.
 546
 547 config EMBEDDEDBOOT
 548         bool
 549         depends on 8xx || 8260
 550         default y
 551
 552 config PC_KEYBOARD
 553         bool "PC PS/2 style Keyboard"
 554         depends on 4xx || CPM2
 555
 556 config PPCBUG_NVRAM
 557         bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
 558         default y if PPC_PREP
 559
 560 config IRQ_ALL_CPUS
 561         bool "Distribute interrupts on all CPUs by default"
 562         depends on SMP && !MV64360
 563         help
 564           This option gives the kernel permission to distribute IRQs across
 565           multiple CPUs.  Saying N here will route all IRQs to the first
 566           CPU.  Generally saying Y is safe, although some problems have been
 567           reported with SMP Power Macintoshes with this option enabled.
 568
 569 source "arch/powerpc/platforms/pseries/Kconfig"
 570
 571 config NUMA
 572         bool "NUMA support"
 573         depends on PPC64
 574         default y if SMP && PPC_PSERIES
 575
 576 config ARCH_SELECT_MEMORY_MODEL
 577         def_bool y
 578         depends on PPC64
 579
 580 config ARCH_FLATMEM_ENABLE
 581        def_bool y
 582        depends on PPC64 && !NUMA
 583
 584 config ARCH_DISCONTIGMEM_ENABLE
 585         def_bool y
 586         depends on SMP && PPC_PSERIES
 587
 588 config ARCH_DISCONTIGMEM_DEFAULT
 589         def_bool y
 590         depends on ARCH_DISCONTIGMEM_ENABLE
 591
 592 config ARCH_SPARSEMEM_ENABLE
 593         def_bool y
 594         depends on ARCH_DISCONTIGMEM_ENABLE
 595
 596 source "mm/Kconfig"
 597
 598 config HAVE_ARCH_EARLY_PFN_TO_NID
 599         def_bool y
 600         depends on NEED_MULTIPLE_NODES
 601
 602 config ARCH_MEMORY_PROBE
 603         def_bool y
 604         depends on MEMORY_HOTPLUG
 605
 606 # Some NUMA nodes have memory ranges that span
 607 # other nodes.  Even though a pfn is valid and
 608 # between a node's start and end pfns, it may not
 609 # reside on that node.
 610 #
 611 # This is a relatively temporary hack that should
 612 # be able to go away when sparsemem is fully in
 613 # place
 614
 615 config NODES_SPAN_OTHER_NODES
 616         def_bool y
 617         depends on NEED_MULTIPLE_NODES
 618
 619 config PPC_64K_PAGES
 620         bool "64k page size"
 621         depends on PPC64
 622         help
 623           This option changes the kernel logical page size to 64k. On machines
 624           without processor support for 64k pages, the kernel will simulate
 625           them by loading each individual 4k page on demand transparently,
 626           while on hardware with such support, it will be used to map
 627           normal application pages.
 628
 629 config SCHED_SMT
 630         bool "SMT (Hyperthreading) scheduler support"
 631         depends on PPC64 && SMP
 632         default off
 633         help
 634           SMT scheduler support improves the CPU scheduler's decision making
 635           when dealing with POWER5 cpus at a cost of slightly increased
 636           overhead in some places. If unsure say N here.
 637
 638 config PROC_DEVICETREE
 639         bool "Support for device tree in /proc"
 640         depends on PROC_FS
 641         help
 642           This option adds a device-tree directory under /proc which contains
 643           an image of the device tree that the kernel copies from Open
 644           Firmware or other boot firmware. If unsure, say Y here.
 645
 646 source "arch/powerpc/platforms/prep/Kconfig"
 647
 648 config CMDLINE_BOOL
 649         bool "Default bootloader kernel arguments"
 650         depends on !PPC_ISERIES
 651
 652 config CMDLINE
 653         string "Initial kernel command string"
 654         depends on CMDLINE_BOOL
 655         default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
 656         help
 657           On some platforms, there is currently no way for the boot loader to
 658           pass arguments to the kernel. For these platforms, you can supply
 659           some command-line options at build time by entering them here.  In
 660           most cases you will need to specify the root device here.
 661
 662 if !44x || BROKEN
 663 source kernel/power/Kconfig
 664 endif
 665
 666 config SECCOMP
 667         bool "Enable seccomp to safely compute untrusted bytecode"
 668         depends on PROC_FS
 669         default y
 670         help
 671           This kernel feature is useful for number crunching applications
 672           that may need to compute untrusted bytecode during their
 673           execution. By using pipes or other transports made available to
 674           the process as file descriptors supporting the read/write
 675           syscalls, it's possible to isolate those applications in
 676           their own address space using seccomp. Once seccomp is
 677           enabled via /proc/<pid>/seccomp, it cannot be disabled
 678           and the task is only allowed to execute a few safe syscalls
 679           defined by each seccomp mode.
 680
 681           If unsure, say Y. Only embedded should say N here.
 682
 683 endmenu
 684
 685 config ISA_DMA_API
 686         bool
 687         default y
 688
 689 menu "Bus options"
 690
 691 config ISA
 692         bool "Support for ISA-bus hardware"
 693         depends on PPC_PREP || PPC_CHRP
 694         select PPC_I8259
 695         help
 696           Find out whether you have ISA slots on your motherboard.  ISA is the
 697           name of a bus system, i.e. the way the CPU talks to the other stuff
 698           inside your box.  If you have an Apple machine, say N here; if you
 699           have an IBM RS/6000 or pSeries machine or a PReP machine, say Y.  If
 700           you have an embedded board, consult your board documentation.
 701
 702 config GENERIC_ISA_DMA
 703         bool
 704         depends on PPC64 || POWER4 || 6xx && !CPM2
 705         default y
 706
 707 config PPC_I8259
 708         bool
 709         default y if 85xx
 710         default n
 711
 712 config PPC_INDIRECT_PCI
 713         bool
 714         depends on PCI
 715         default y if 40x || 44x || 85xx || 83xx
 716         default n
 717
 718 config EISA
 719         bool
 720
 721 config SBUS
 722         bool
 723
 724 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
 725 config MCA
 726         bool
 727
 728 config PCI
 729         bool "PCI support" if 40x || CPM2 || 83xx || 85xx || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES)
 730         default y if !40x && !CPM2 && !8xx && !APUS && !83xx && !85xx
 731         default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS
 732         default PCI_QSPAN if !4xx && !CPM2 && 8xx
 733         help
 734           Find out whether your system includes a PCI bus. PCI is the name of
 735           a bus system, i.e. the way the CPU talks to the other stuff inside
 736           your box.  If you say Y here, the kernel will include drivers and
 737           infrastructure code to support PCI bus devices.
 738
 739 config PCI_DOMAINS
 740         bool
 741         default PCI
 742
 743 config MPC83xx_PCI2
 744         bool "  Supprt for 2nd PCI host controller"
 745         depends on PCI && MPC834x
 746         default y if MPC834x_SYS
 747
 748 config PCI_QSPAN
 749         bool "QSpan PCI"
 750         depends on !4xx && !CPM2 && 8xx
 751         select PPC_I8259
 752         help
 753           Say Y here if you have a system based on a Motorola 8xx-series
 754           embedded processor with a QSPAN PCI interface, otherwise say N.
 755
 756 config PCI_8260
 757         bool
 758         depends on PCI && 8260
 759         select PPC_INDIRECT_PCI
 760         default y
 761
 762 config 8260_PCI9
 763         bool "  Enable workaround for MPC826x erratum PCI 9"
 764         depends on PCI_8260 && !ADS8272
 765         default y
 766
 767 choice
 768         prompt "  IDMA channel for PCI 9 workaround"
 769         depends on 8260_PCI9
 770
 771 config 8260_PCI9_IDMA1
 772         bool "IDMA1"
 773
 774 config 8260_PCI9_IDMA2
 775         bool "IDMA2"
 776
 777 config 8260_PCI9_IDMA3
 778         bool "IDMA3"
 779
 780 config 8260_PCI9_IDMA4
 781         bool "IDMA4"
 782
 783 endchoice
 784
 785 source "drivers/pci/Kconfig"
 786
 787 source "drivers/pcmcia/Kconfig"
 788
 789 source "drivers/pci/hotplug/Kconfig"
 790
 791 endmenu
 792
 793 menu "Advanced setup"
 794         depends on PPC32
 795
 796 config ADVANCED_OPTIONS
 797         bool "Prompt for advanced kernel configuration options"
 798         help
 799           This option will enable prompting for a variety of advanced kernel
 800           configuration options.  These options can cause the kernel to not
 801           work if they are set incorrectly, but can be used to optimize certain
 802           aspects of kernel memory management.
 803
 804           Unless you know what you are doing, say N here.
 805
 806 comment "Default settings for advanced configuration options are used"
 807         depends on !ADVANCED_OPTIONS
 808
 809 config HIGHMEM_START_BOOL
 810         bool "Set high memory pool address"
 811         depends on ADVANCED_OPTIONS && HIGHMEM
 812         help
 813           This option allows you to set the base address of the kernel virtual
 814           area used to map high memory pages.  This can be useful in
 815           optimizing the layout of kernel virtual memory.
 816
 817           Say N here unless you know what you are doing.
 818
 819 config HIGHMEM_START
 820         hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
 821         default "0xfe000000"
 822
 823 config LOWMEM_SIZE_BOOL
 824         bool "Set maximum low memory"
 825         depends on ADVANCED_OPTIONS
 826         help
 827           This option allows you to set the maximum amount of memory which
 828           will be used as "low memory", that is, memory which the kernel can
 829           access directly, without having to set up a kernel virtual mapping.
 830           This can be useful in optimizing the layout of kernel virtual
 831           memory.
 832
 833           Say N here unless you know what you are doing.
 834
 835 config LOWMEM_SIZE
 836         hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
 837         default "0x30000000"
 838
 839 config KERNEL_START_BOOL
 840         bool "Set custom kernel base address"
 841         depends on ADVANCED_OPTIONS
 842         help
 843           This option allows you to set the kernel virtual address at which
 844           the kernel will map low memory (the kernel image will be linked at
 845           this address).  This can be useful in optimizing the virtual memory
 846           layout of the system.
 847
 848           Say N here unless you know what you are doing.
 849
 850 config KERNEL_START
 851         hex "Virtual address of kernel base" if KERNEL_START_BOOL
 852         default "0xc0000000"
 853
 854 config TASK_SIZE_BOOL
 855         bool "Set custom user task size"
 856         depends on ADVANCED_OPTIONS
 857         help
 858           This option allows you to set the amount of virtual address space
 859           allocated to user tasks.  This can be useful in optimizing the
 860           virtual memory layout of the system.
 861
 862           Say N here unless you know what you are doing.
 863
 864 config TASK_SIZE
 865         hex "Size of user task space" if TASK_SIZE_BOOL
 866         default "0x80000000"
 867
 868 config CONSISTENT_START_BOOL
 869         bool "Set custom consistent memory pool address"
 870         depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
 871         help
 872           This option allows you to set the base virtual address
 873           of the the consistent memory pool.  This pool of virtual
 874           memory is used to make consistent memory allocations.
 875
 876 config CONSISTENT_START
 877         hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL
 878         default "0xff100000" if NOT_COHERENT_CACHE
 879
 880 config CONSISTENT_SIZE_BOOL
 881         bool "Set custom consistent memory pool size"
 882         depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
 883         help
 884           This option allows you to set the size of the the
 885           consistent memory pool.  This pool of virtual memory
 886           is used to make consistent memory allocations.
 887
 888 config CONSISTENT_SIZE
 889         hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
 890         default "0x00200000" if NOT_COHERENT_CACHE
 891
 892 config BOOT_LOAD_BOOL
 893         bool "Set the boot link/load address"
 894         depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM
 895         help
 896           This option allows you to set the initial load address of the zImage
 897           or zImage.initrd file.  This can be useful if you are on a board
 898           which has a small amount of memory.
 899
 900           Say N here unless you know what you are doing.
 901
 902 config BOOT_LOAD
 903         hex "Link/load address for booting" if BOOT_LOAD_BOOL
 904         default "0x00400000" if 40x || 8xx || 8260
 905         default "0x01000000" if 44x
 906         default "0x00800000"
 907
 908 config PIN_TLB
 909         bool "Pinned Kernel TLBs (860 ONLY)"
 910         depends on ADVANCED_OPTIONS && 8xx
 911 endmenu
 912
 913 if PPC64
 914 config KERNEL_START
 915         hex
 916         default "0xc000000000000000"
 917 endif
 918
 919 source "net/Kconfig"
 920
 921 source "drivers/Kconfig"
 922
 923 source "fs/Kconfig"
 924
 925 # XXX source "arch/ppc/8xx_io/Kconfig"
 926
 927 # XXX source "arch/ppc/8260_io/Kconfig"
 928
 929 source "arch/powerpc/platforms/iseries/Kconfig"
 930
 931 source "lib/Kconfig"
 932
 933 menu "Instrumentation Support"
 934         depends on EXPERIMENTAL
 935
 936 source "arch/powerpc/oprofile/Kconfig"
 937
 938 config KPROBES
 939         bool "Kprobes (EXPERIMENTAL)"
 940         help
 941           Kprobes allows you to trap at almost any kernel address and
 942           execute a callback function.  register_kprobe() establishes
 943           a probepoint and specifies the callback.  Kprobes is useful
 944           for kernel debugging, non-intrusive instrumentation and testing.
 945           If in doubt, say "N".
 946 endmenu
 947
 948 source "arch/powerpc/Kconfig.debug"
 949
 950 source "security/Kconfig"
 951
 952 config KEYS_COMPAT
 953         bool
 954         depends on COMPAT && KEYS
 955         default y
 956
 957 source "crypto/Kconfig"