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 PPC601_SYNC_FIX
 408         bool "Workarounds for PPC601 bugs"
 409         depends on 6xx && (PPC_PREP || PPC_PMAC)
 410         help
 411           Some versions of the PPC601 (the first PowerPC chip) have bugs which
 412           mean that extra synchronization instructions are required near
 413           certain instructions, typically those that make major changes to the
 414           CPU state.  These extra instructions reduce performance slightly.
 415           If you say N here, these extra instructions will not be included,
 416           resulting in a kernel which will run faster but may not run at all
 417           on some systems with the PPC601 chip.
 418
 419           If in doubt, say Y here.
 420
 421 config TAU
 422         bool "Thermal Management Support"
 423         depends on 6xx
 424         help
 425           G3 and G4 processors have an on-chip temperature sensor called the
 426           'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die
 427           temperature within 2-4 degrees Celsius. This option shows the current
 428           on-die temperature in /proc/cpuinfo if the cpu supports it.
 429
 430           Unfortunately, on some chip revisions, this sensor is very inaccurate
 431           and in some cases, does not work at all, so don't assume the cpu
 432           temp is actually what /proc/cpuinfo says it is.
 433
 434 config TAU_INT
 435         bool "Interrupt driven TAU driver (DANGEROUS)"
 436         depends on TAU
 437         ---help---
 438           The TAU supports an interrupt driven mode which causes an interrupt
 439           whenever the temperature goes out of range. This is the fastest way
 440           to get notified the temp has exceeded a range. With this option off,
 441           a timer is used to re-check the temperature periodically.
 442
 443           However, on some cpus it appears that the TAU interrupt hardware
 444           is buggy and can cause a situation which would lead unexplained hard
 445           lockups.
 446
 447           Unless you are extending the TAU driver, or enjoy kernel/hardware
 448           debugging, leave this option off.
 449
 450 config TAU_AVERAGE
 451         bool "Average high and low temp"
 452         depends on TAU
 453         ---help---
 454           The TAU hardware can compare the temperature to an upper and lower
 455           bound.  The default behavior is to show both the upper and lower
 456           bound in /proc/cpuinfo. If the range is large, the temperature is
 457           either changing a lot, or the TAU hardware is broken (likely on some
 458           G4's). If the range is small (around 4 degrees), the temperature is
 459           relatively stable.  If you say Y here, a single temperature value,
 460           halfway between the upper and lower bounds, will be reported in
 461           /proc/cpuinfo.
 462
 463           If in doubt, say N here.
 464 endmenu
 465
 466 source arch/powerpc/platforms/embedded6xx/Kconfig
 467 source arch/powerpc/platforms/4xx/Kconfig
 468 source arch/powerpc/platforms/85xx/Kconfig
 469 source arch/powerpc/platforms/8xx/Kconfig
 470
 471 menu "Kernel options"
 472
 473 config HIGHMEM
 474         bool "High memory support"
 475         depends on PPC32
 476
 477 source kernel/Kconfig.hz
 478 source kernel/Kconfig.preempt
 479 source "fs/Kconfig.binfmt"
 480
 481 # We optimistically allocate largepages from the VM, so make the limit
 482 # large enough (16MB). This badly named config option is actually
 483 # max order + 1
 484 config FORCE_MAX_ZONEORDER
 485         int
 486         depends on PPC64
 487         default "13"
 488
 489 config MATH_EMULATION
 490         bool "Math emulation"
 491         depends on 4xx || 8xx || E200 || E500
 492         ---help---
 493           Some PowerPC chips designed for embedded applications do not have
 494           a floating-point unit and therefore do not implement the
 495           floating-point instructions in the PowerPC instruction set.  If you
 496           say Y here, the kernel will include code to emulate a floating-point
 497           unit, which will allow programs that use floating-point
 498           instructions to run.
 499
 500 config IOMMU_VMERGE
 501         bool "Enable IOMMU virtual merging (EXPERIMENTAL)"
 502         depends on EXPERIMENTAL && PPC64
 503         default n
 504         help
 505           Cause IO segments sent to a device for DMA to be merged virtually
 506           by the IOMMU when they happen to have been allocated contiguously.
 507           This doesn't add pressure to the IOMMU allocator. However, some
 508           drivers don't support getting large merged segments coming back
 509           from *_map_sg(). Say Y if you know the drivers you are using are
 510           properly handling this case.
 511
 512 config HOTPLUG_CPU
 513         bool "Support for enabling/disabling CPUs"
 514         depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
 515         ---help---
 516           Say Y here to be able to disable and re-enable individual
 517           CPUs at runtime on SMP machines.
 518
 519           Say N if you are unsure.
 520
 521 config KEXEC
 522         bool "kexec system call (EXPERIMENTAL)"
 523         depends on PPC_MULTIPLATFORM && EXPERIMENTAL
 524         help
 525           kexec is a system call that implements the ability to shutdown your
 526           current kernel, and to start another kernel.  It is like a reboot
 527           but it is indepedent of the system firmware.   And like a reboot
 528           you can start any kernel with it, not just Linux.
 529
 530           The name comes from the similiarity to the exec system call.
 531
 532           It is an ongoing process to be certain the hardware in a machine
 533           is properly shutdown, so do not be surprised if this code does not
 534           initially work for you.  It may help to enable device hotplugging
 535           support.  As of this writing the exact hardware interface is
 536           strongly in flux, so no good recommendation can be made.
 537
 538 config EMBEDDEDBOOT
 539         bool
 540         depends on 8xx || 8260
 541         default y
 542
 543 config PC_KEYBOARD
 544         bool "PC PS/2 style Keyboard"
 545         depends on 4xx || CPM2
 546
 547 config PPCBUG_NVRAM
 548         bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
 549         default y if PPC_PREP
 550
 551 config IRQ_ALL_CPUS
 552         bool "Distribute interrupts on all CPUs by default"
 553         depends on SMP && !MV64360
 554         help
 555           This option gives the kernel permission to distribute IRQs across
 556           multiple CPUs.  Saying N here will route all IRQs to the first
 557           CPU.  Generally saying Y is safe, although some problems have been
 558           reported with SMP Power Macintoshes with this option enabled.
 559
 560 source "arch/powerpc/platforms/pseries/Kconfig"
 561
 562 config NUMA
 563         bool "NUMA support"
 564         depends on PPC64
 565         default y if SMP && PPC_PSERIES
 566
 567 config ARCH_SELECT_MEMORY_MODEL
 568         def_bool y
 569         depends on PPC64
 570
 571 config ARCH_FLATMEM_ENABLE
 572        def_bool y
 573        depends on PPC64 && !NUMA
 574
 575 config ARCH_DISCONTIGMEM_ENABLE
 576         def_bool y
 577         depends on SMP && PPC_PSERIES
 578
 579 config ARCH_DISCONTIGMEM_DEFAULT
 580         def_bool y
 581         depends on ARCH_DISCONTIGMEM_ENABLE
 582
 583 config ARCH_SPARSEMEM_ENABLE
 584         def_bool y
 585         depends on ARCH_DISCONTIGMEM_ENABLE
 586
 587 source "mm/Kconfig"
 588
 589 config HAVE_ARCH_EARLY_PFN_TO_NID
 590         def_bool y
 591         depends on NEED_MULTIPLE_NODES
 592
 593 # Some NUMA nodes have memory ranges that span
 594 # other nodes.  Even though a pfn is valid and
 595 # between a node's start and end pfns, it may not
 596 # reside on that node.
 597 #
 598 # This is a relatively temporary hack that should
 599 # be able to go away when sparsemem is fully in
 600 # place
 601
 602 config NODES_SPAN_OTHER_NODES
 603         def_bool y
 604         depends on NEED_MULTIPLE_NODES
 605
 606 config PPC_64K_PAGES
 607         bool "64k page size"
 608         help
 609           This option changes the kernel logical page size to 64k. On machines
 610           without processor support for 64k pages, the kernel will simulate
 611           them by loading each individual 4k page on demand transparently,
 612           while on hardware with such support, it will be used to map
 613           normal application pages.
 614
 615 config SCHED_SMT
 616         bool "SMT (Hyperthreading) scheduler support"
 617         depends on PPC64 && SMP
 618         default off
 619         help
 620           SMT scheduler support improves the CPU scheduler's decision making
 621           when dealing with POWER5 cpus at a cost of slightly increased
 622           overhead in some places. If unsure say N here.
 623
 624 config PROC_DEVICETREE
 625         bool "Support for device tree in /proc"
 626         depends on PROC_FS
 627         help
 628           This option adds a device-tree directory under /proc which contains
 629           an image of the device tree that the kernel copies from Open
 630           Firmware or other boot firmware. If unsure, say Y here.
 631
 632 source "arch/powerpc/platforms/prep/Kconfig"
 633
 634 config CMDLINE_BOOL
 635         bool "Default bootloader kernel arguments"
 636         depends on !PPC_ISERIES
 637
 638 config CMDLINE
 639         string "Initial kernel command string"
 640         depends on CMDLINE_BOOL
 641         default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
 642         help
 643           On some platforms, there is currently no way for the boot loader to
 644           pass arguments to the kernel. For these platforms, you can supply
 645           some command-line options at build time by entering them here.  In
 646           most cases you will need to specify the root device here.
 647
 648 if !44x || BROKEN
 649 source kernel/power/Kconfig
 650 endif
 651
 652 config SECCOMP
 653         bool "Enable seccomp to safely compute untrusted bytecode"
 654         depends on PROC_FS
 655         default y
 656         help
 657           This kernel feature is useful for number crunching applications
 658           that may need to compute untrusted bytecode during their
 659           execution. By using pipes or other transports made available to
 660           the process as file descriptors supporting the read/write
 661           syscalls, it's possible to isolate those applications in
 662           their own address space using seccomp. Once seccomp is
 663           enabled via /proc/<pid>/seccomp, it cannot be disabled
 664           and the task is only allowed to execute a few safe syscalls
 665           defined by each seccomp mode.
 666
 667           If unsure, say Y. Only embedded should say N here.
 668
 669 endmenu
 670
 671 config ISA_DMA_API
 672         bool
 673         default y
 674
 675 menu "Bus options"
 676
 677 config ISA
 678         bool "Support for ISA-bus hardware"
 679         depends on PPC_PREP || PPC_CHRP
 680         select PPC_I8259
 681         help
 682           Find out whether you have ISA slots on your motherboard.  ISA is the
 683           name of a bus system, i.e. the way the CPU talks to the other stuff
 684           inside your box.  If you have an Apple machine, say N here; if you
 685           have an IBM RS/6000 or pSeries machine or a PReP machine, say Y.  If
 686           you have an embedded board, consult your board documentation.
 687
 688 config GENERIC_ISA_DMA
 689         bool
 690         depends on PPC64 || POWER4 || 6xx && !CPM2
 691         default y
 692
 693 config PPC_I8259
 694         bool
 695         default y if 85xx
 696         default n
 697
 698 config PPC_INDIRECT_PCI
 699         bool
 700         depends on PCI
 701         default y if 40x || 44x || 85xx || 83xx
 702         default n
 703
 704 config EISA
 705         bool
 706
 707 config SBUS
 708         bool
 709
 710 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
 711 config MCA
 712         bool
 713
 714 config PCI
 715         bool "PCI support" if 40x || CPM2 || 83xx || 85xx || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES)
 716         default y if !40x && !CPM2 && !8xx && !APUS && !83xx && !85xx
 717         default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS
 718         default PCI_QSPAN if !4xx && !CPM2 && 8xx
 719         help
 720           Find out whether your system includes a PCI bus. PCI is the name of
 721           a bus system, i.e. the way the CPU talks to the other stuff inside
 722           your box.  If you say Y here, the kernel will include drivers and
 723           infrastructure code to support PCI bus devices.
 724
 725 config PCI_DOMAINS
 726         bool
 727         default PCI
 728
 729 config MPC83xx_PCI2
 730         bool "  Supprt for 2nd PCI host controller"
 731         depends on PCI && MPC834x
 732         default y if MPC834x_SYS
 733
 734 config PCI_QSPAN
 735         bool "QSpan PCI"
 736         depends on !4xx && !CPM2 && 8xx
 737         select PPC_I8259
 738         help
 739           Say Y here if you have a system based on a Motorola 8xx-series
 740           embedded processor with a QSPAN PCI interface, otherwise say N.
 741
 742 config PCI_8260
 743         bool
 744         depends on PCI && 8260
 745         select PPC_INDIRECT_PCI
 746         default y
 747
 748 config 8260_PCI9
 749         bool "  Enable workaround for MPC826x erratum PCI 9"
 750         depends on PCI_8260 && !ADS8272
 751         default y
 752
 753 choice
 754         prompt "  IDMA channel for PCI 9 workaround"
 755         depends on 8260_PCI9
 756
 757 config 8260_PCI9_IDMA1
 758         bool "IDMA1"
 759
 760 config 8260_PCI9_IDMA2
 761         bool "IDMA2"
 762
 763 config 8260_PCI9_IDMA3
 764         bool "IDMA3"
 765
 766 config 8260_PCI9_IDMA4
 767         bool "IDMA4"
 768
 769 endchoice
 770
 771 source "drivers/pci/Kconfig"
 772
 773 source "drivers/pcmcia/Kconfig"
 774
 775 source "drivers/pci/hotplug/Kconfig"
 776
 777 endmenu
 778
 779 menu "Advanced setup"
 780         depends on PPC32
 781
 782 config ADVANCED_OPTIONS
 783         bool "Prompt for advanced kernel configuration options"
 784         help
 785           This option will enable prompting for a variety of advanced kernel
 786           configuration options.  These options can cause the kernel to not
 787           work if they are set incorrectly, but can be used to optimize certain
 788           aspects of kernel memory management.
 789
 790           Unless you know what you are doing, say N here.
 791
 792 comment "Default settings for advanced configuration options are used"
 793         depends on !ADVANCED_OPTIONS
 794
 795 config HIGHMEM_START_BOOL
 796         bool "Set high memory pool address"
 797         depends on ADVANCED_OPTIONS && HIGHMEM
 798         help
 799           This option allows you to set the base address of the kernel virtual
 800           area used to map high memory pages.  This can be useful in
 801           optimizing the layout of kernel virtual memory.
 802
 803           Say N here unless you know what you are doing.
 804
 805 config HIGHMEM_START
 806         hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
 807         default "0xfe000000"
 808
 809 config LOWMEM_SIZE_BOOL
 810         bool "Set maximum low memory"
 811         depends on ADVANCED_OPTIONS
 812         help
 813           This option allows you to set the maximum amount of memory which
 814           will be used as "low memory", that is, memory which the kernel can
 815           access directly, without having to set up a kernel virtual mapping.
 816           This can be useful in optimizing the layout of kernel virtual
 817           memory.
 818
 819           Say N here unless you know what you are doing.
 820
 821 config LOWMEM_SIZE
 822         hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
 823         default "0x30000000"
 824
 825 config KERNEL_START_BOOL
 826         bool "Set custom kernel base address"
 827         depends on ADVANCED_OPTIONS
 828         help
 829           This option allows you to set the kernel virtual address at which
 830           the kernel will map low memory (the kernel image will be linked at
 831           this address).  This can be useful in optimizing the virtual memory
 832           layout of the system.
 833
 834           Say N here unless you know what you are doing.
 835
 836 config KERNEL_START
 837         hex "Virtual address of kernel base" if KERNEL_START_BOOL
 838         default "0xc0000000"
 839
 840 config TASK_SIZE_BOOL
 841         bool "Set custom user task size"
 842         depends on ADVANCED_OPTIONS
 843         help
 844           This option allows you to set the amount of virtual address space
 845           allocated to user tasks.  This can be useful in optimizing the
 846           virtual memory layout of the system.
 847
 848           Say N here unless you know what you are doing.
 849
 850 config TASK_SIZE
 851         hex "Size of user task space" if TASK_SIZE_BOOL
 852         default "0x80000000"
 853
 854 config CONSISTENT_START_BOOL
 855         bool "Set custom consistent memory pool address"
 856         depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
 857         help
 858           This option allows you to set the base virtual address
 859           of the the consistent memory pool.  This pool of virtual
 860           memory is used to make consistent memory allocations.
 861
 862 config CONSISTENT_START
 863         hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL
 864         default "0xff100000" if NOT_COHERENT_CACHE
 865
 866 config CONSISTENT_SIZE_BOOL
 867         bool "Set custom consistent memory pool size"
 868         depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
 869         help
 870           This option allows you to set the size of the the
 871           consistent memory pool.  This pool of virtual memory
 872           is used to make consistent memory allocations.
 873
 874 config CONSISTENT_SIZE
 875         hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
 876         default "0x00200000" if NOT_COHERENT_CACHE
 877
 878 config BOOT_LOAD_BOOL
 879         bool "Set the boot link/load address"
 880         depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM
 881         help
 882           This option allows you to set the initial load address of the zImage
 883           or zImage.initrd file.  This can be useful if you are on a board
 884           which has a small amount of memory.
 885
 886           Say N here unless you know what you are doing.
 887
 888 config BOOT_LOAD
 889         hex "Link/load address for booting" if BOOT_LOAD_BOOL
 890         default "0x00400000" if 40x || 8xx || 8260
 891         default "0x01000000" if 44x
 892         default "0x00800000"
 893
 894 config PIN_TLB
 895         bool "Pinned Kernel TLBs (860 ONLY)"
 896         depends on ADVANCED_OPTIONS && 8xx
 897 endmenu
 898
 899 if PPC64
 900 config KERNEL_START
 901         hex
 902         default "0xc000000000000000"
 903 endif
 904
 905 source "net/Kconfig"
 906
 907 source "drivers/Kconfig"
 908
 909 source "fs/Kconfig"
 910
 911 # XXX source "arch/ppc/8xx_io/Kconfig"
 912
 913 # XXX source "arch/ppc/8260_io/Kconfig"
 914
 915 source "arch/powerpc/platforms/iseries/Kconfig"
 916
 917 source "lib/Kconfig"
 918
 919 source "arch/powerpc/oprofile/Kconfig"
 920
 921 source "arch/powerpc/Kconfig.debug"
 922
 923 source "security/Kconfig"
 924
 925 config KEYS_COMPAT
 926         bool
 927         depends on COMPAT && KEYS
 928         default y
 929
 930 source "crypto/Kconfig"