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
  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 (2-128)"
 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 && BROKEN
 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 MPIC_BROKEN_U3
 304         select GENERIC_TBSYNC
 305         default y
 306
 307 config PPC_PREP
 308         bool "  PowerPC Reference Platform (PReP) based machines"
 309         depends on PPC_MULTIPLATFORM && PPC32 && BROKEN
 310         select PPC_I8259
 311         select PPC_INDIRECT_PCI
 312         default y
 313
 314 config PPC_MAPLE
 315         depends on PPC_MULTIPLATFORM && PPC64
 316         bool "  Maple 970FX Evaluation Board"
 317         select U3_DART
 318         select MPIC_BROKEN_U3
 319         select GENERIC_TBSYNC
 320         default n
 321         help
 322           This option enables support for the Maple 970FX Evaluation Board.
 323           For more informations, refer to <http://www.970eval.com>
 324
 325 config PPC_CELL
 326         bool "  Cell Broadband Processor Architecture"
 327         depends on PPC_MULTIPLATFORM && PPC64
 328         select PPC_RTAS
 329         select MMIO_NVRAM
 330
 331 config PPC_OF
 332         bool
 333         depends on PPC_MULTIPLATFORM    # for now
 334         default y
 335
 336 config XICS
 337         depends on PPC_PSERIES
 338         bool
 339         default y
 340
 341 config U3_DART
 342         bool
 343         depends on PPC_MULTIPLATFORM && PPC64
 344         default n
 345
 346 config MPIC
 347         depends on PPC_PSERIES || PPC_PMAC || PPC_MAPLE || PPC_CHRP
 348         bool
 349         default y
 350
 351 config PPC_RTAS
 352         bool
 353         default n
 354
 355 config RTAS_ERROR_LOGGING
 356         bool
 357         depends on PPC_RTAS
 358         default n
 359
 360 config RTAS_PROC
 361         bool "Proc interface to RTAS"
 362         depends on PPC_RTAS
 363         default y
 364
 365 config RTAS_FLASH
 366         tristate "Firmware flash interface"
 367         depends on PPC64 && RTAS_PROC
 368
 369 config MMIO_NVRAM
 370         bool
 371         default n
 372
 373 config MPIC_BROKEN_U3
 374         bool
 375         depends on PPC_MAPLE
 376         default y
 377
 378 config CELL_IIC
 379         depends on PPC_CELL
 380         bool
 381         default y
 382
 383 config CRASH_DUMP
 384         bool "kernel crash dumps (EXPERIMENTAL)"
 385         depends on PPC_MULTIPLATFORM
 386         depends on EXPERIMENTAL
 387         help
 388           Build a kernel suitable for use as a kdump capture kernel.
 389           The kernel will be linked at a different address than normal, and
 390           so can only be used for Kdump.
 391
 392           Don't change this unless you know what you are doing.
 393
 394 config IBMVIO
 395         depends on PPC_PSERIES || PPC_ISERIES
 396         bool
 397         default y
 398
 399 config IBMEBUS
 400         depends on PPC_PSERIES
 401         bool "Support for GX bus based adapters"
 402         default y
 403         help
 404           Bus device driver for GX bus based adapters.
 405
 406 config PPC_MPC106
 407         bool
 408         default n
 409
 410 config GENERIC_TBSYNC
 411         bool
 412         default y if CONFIG_PPC32 && CONFIG_SMP
 413         default n
 414
 415 source "drivers/cpufreq/Kconfig"
 416
 417 config CPU_FREQ_PMAC
 418         bool "Support for Apple PowerBooks"
 419         depends on CPU_FREQ && ADB_PMU && PPC32
 420         select CPU_FREQ_TABLE
 421         help
 422           This adds support for frequency switching on Apple PowerBooks,
 423           this currently includes some models of iBook & Titanium
 424           PowerBook.
 425
 426 config CPU_FREQ_PMAC64
 427         bool "Support for some Apple G5s"
 428         depends on CPU_FREQ && PMAC_SMU && PPC64
 429         select CPU_FREQ_TABLE
 430         help
 431           This adds support for frequency switching on Apple iMac G5,
 432           and some of the more recent desktop G5 machines as well.
 433
 434 config PPC601_SYNC_FIX
 435         bool "Workarounds for PPC601 bugs"
 436         depends on 6xx && (PPC_PREP || PPC_PMAC)
 437         help
 438           Some versions of the PPC601 (the first PowerPC chip) have bugs which
 439           mean that extra synchronization instructions are required near
 440           certain instructions, typically those that make major changes to the
 441           CPU state.  These extra instructions reduce performance slightly.
 442           If you say N here, these extra instructions will not be included,
 443           resulting in a kernel which will run faster but may not run at all
 444           on some systems with the PPC601 chip.
 445
 446           If in doubt, say Y here.
 447
 448 config TAU
 449         bool "Thermal Management Support"
 450         depends on 6xx
 451         help
 452           G3 and G4 processors have an on-chip temperature sensor called the
 453           'Thermal Assist Unit (TAU)', which, in theory, can measure the on-die
 454           temperature within 2-4 degrees Celsius. This option shows the current
 455           on-die temperature in /proc/cpuinfo if the cpu supports it.
 456
 457           Unfortunately, on some chip revisions, this sensor is very inaccurate
 458           and in some cases, does not work at all, so don't assume the cpu
 459           temp is actually what /proc/cpuinfo says it is.
 460
 461 config TAU_INT
 462         bool "Interrupt driven TAU driver (DANGEROUS)"
 463         depends on TAU
 464         ---help---
 465           The TAU supports an interrupt driven mode which causes an interrupt
 466           whenever the temperature goes out of range. This is the fastest way
 467           to get notified the temp has exceeded a range. With this option off,
 468           a timer is used to re-check the temperature periodically.
 469
 470           However, on some cpus it appears that the TAU interrupt hardware
 471           is buggy and can cause a situation which would lead unexplained hard
 472           lockups.
 473
 474           Unless you are extending the TAU driver, or enjoy kernel/hardware
 475           debugging, leave this option off.
 476
 477 config TAU_AVERAGE
 478         bool "Average high and low temp"
 479         depends on TAU
 480         ---help---
 481           The TAU hardware can compare the temperature to an upper and lower
 482           bound.  The default behavior is to show both the upper and lower
 483           bound in /proc/cpuinfo. If the range is large, the temperature is
 484           either changing a lot, or the TAU hardware is broken (likely on some
 485           G4's). If the range is small (around 4 degrees), the temperature is
 486           relatively stable.  If you say Y here, a single temperature value,
 487           halfway between the upper and lower bounds, will be reported in
 488           /proc/cpuinfo.
 489
 490           If in doubt, say N here.
 491 endmenu
 492
 493 source arch/powerpc/platforms/embedded6xx/Kconfig
 494 source arch/powerpc/platforms/4xx/Kconfig
 495 source arch/powerpc/platforms/85xx/Kconfig
 496 source arch/powerpc/platforms/8xx/Kconfig
 497 source arch/powerpc/platforms/cell/Kconfig
 498
 499 menu "Kernel options"
 500
 501 config HIGHMEM
 502         bool "High memory support"
 503         depends on PPC32
 504
 505 source kernel/Kconfig.hz
 506 source kernel/Kconfig.preempt
 507 source "fs/Kconfig.binfmt"
 508
 509 # We optimistically allocate largepages from the VM, so make the limit
 510 # large enough (16MB). This badly named config option is actually
 511 # max order + 1
 512 config FORCE_MAX_ZONEORDER
 513         int
 514         depends on PPC64
 515         default "9" if PPC_64K_PAGES
 516         default "13"
 517
 518 config MATH_EMULATION
 519         bool "Math emulation"
 520         depends on 4xx || 8xx || E200 || E500
 521         ---help---
 522           Some PowerPC chips designed for embedded applications do not have
 523           a floating-point unit and therefore do not implement the
 524           floating-point instructions in the PowerPC instruction set.  If you
 525           say Y here, the kernel will include code to emulate a floating-point
 526           unit, which will allow programs that use floating-point
 527           instructions to run.
 528
 529 config IOMMU_VMERGE
 530         bool "Enable IOMMU virtual merging (EXPERIMENTAL)"
 531         depends on EXPERIMENTAL && PPC64
 532         default n
 533         help
 534           Cause IO segments sent to a device for DMA to be merged virtually
 535           by the IOMMU when they happen to have been allocated contiguously.
 536           This doesn't add pressure to the IOMMU allocator. However, some
 537           drivers don't support getting large merged segments coming back
 538           from *_map_sg(). Say Y if you know the drivers you are using are
 539           properly handling this case.
 540
 541 config HOTPLUG_CPU
 542         bool "Support for enabling/disabling CPUs"
 543         depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC)
 544         ---help---
 545           Say Y here to be able to disable and re-enable individual
 546           CPUs at runtime on SMP machines.
 547
 548           Say N if you are unsure.
 549
 550 config KEXEC
 551         bool "kexec system call (EXPERIMENTAL)"
 552         depends on PPC_MULTIPLATFORM && EXPERIMENTAL
 553         help
 554           kexec is a system call that implements the ability to shutdown your
 555           current kernel, and to start another kernel.  It is like a reboot
 556           but it is indepedent of the system firmware.   And like a reboot
 557           you can start any kernel with it, not just Linux.
 558
 559           The name comes from the similiarity to the exec system call.
 560
 561           It is an ongoing process to be certain the hardware in a machine
 562           is properly shutdown, so do not be surprised if this code does not
 563           initially work for you.  It may help to enable device hotplugging
 564           support.  As of this writing the exact hardware interface is
 565           strongly in flux, so no good recommendation can be made.
 566
 567 config EMBEDDEDBOOT
 568         bool
 569         depends on 8xx || 8260
 570         default y
 571
 572 config PC_KEYBOARD
 573         bool "PC PS/2 style Keyboard"
 574         depends on 4xx || CPM2
 575
 576 config PPCBUG_NVRAM
 577         bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC
 578         default y if PPC_PREP
 579
 580 config IRQ_ALL_CPUS
 581         bool "Distribute interrupts on all CPUs by default"
 582         depends on SMP && !MV64360
 583         help
 584           This option gives the kernel permission to distribute IRQs across
 585           multiple CPUs.  Saying N here will route all IRQs to the first
 586           CPU.  Generally saying Y is safe, although some problems have been
 587           reported with SMP Power Macintoshes with this option enabled.
 588
 589 source "arch/powerpc/platforms/pseries/Kconfig"
 590
 591 config NUMA
 592         bool "NUMA support"
 593         depends on PPC64
 594         default y if SMP && PPC_PSERIES
 595
 596 config ARCH_SELECT_MEMORY_MODEL
 597         def_bool y
 598         depends on PPC64
 599
 600 config ARCH_FLATMEM_ENABLE
 601         def_bool y
 602         depends on (PPC64 && !NUMA) || PPC32
 603
 604 config ARCH_SPARSEMEM_ENABLE
 605         def_bool y
 606         depends on PPC64
 607
 608 config ARCH_SPARSEMEM_DEFAULT
 609         def_bool y
 610         depends on SMP && PPC_PSERIES
 611
 612 source "mm/Kconfig"
 613
 614 config HAVE_ARCH_EARLY_PFN_TO_NID
 615         def_bool y
 616         depends on NEED_MULTIPLE_NODES
 617
 618 config ARCH_MEMORY_PROBE
 619         def_bool y
 620         depends on MEMORY_HOTPLUG
 621
 622 config PPC_64K_PAGES
 623         bool "64k page size"
 624         depends on PPC64
 625         help
 626           This option changes the kernel logical page size to 64k. On machines
 627           without processor support for 64k pages, the kernel will simulate
 628           them by loading each individual 4k page on demand transparently,
 629           while on hardware with such support, it will be used to map
 630           normal application pages.
 631
 632 config SCHED_SMT
 633         bool "SMT (Hyperthreading) scheduler support"
 634         depends on PPC64 && SMP
 635         default off
 636         help
 637           SMT scheduler support improves the CPU scheduler's decision making
 638           when dealing with POWER5 cpus at a cost of slightly increased
 639           overhead in some places. If unsure say N here.
 640
 641 config PROC_DEVICETREE
 642         bool "Support for device tree in /proc"
 643         depends on PROC_FS
 644         help
 645           This option adds a device-tree directory under /proc which contains
 646           an image of the device tree that the kernel copies from Open
 647           Firmware or other boot firmware. If unsure, say Y here.
 648
 649 source "arch/powerpc/platforms/prep/Kconfig"
 650
 651 config CMDLINE_BOOL
 652         bool "Default bootloader kernel arguments"
 653         depends on !PPC_ISERIES
 654
 655 config CMDLINE
 656         string "Initial kernel command string"
 657         depends on CMDLINE_BOOL
 658         default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
 659         help
 660           On some platforms, there is currently no way for the boot loader to
 661           pass arguments to the kernel. For these platforms, you can supply
 662           some command-line options at build time by entering them here.  In
 663           most cases you will need to specify the root device here.
 664
 665 if !44x || BROKEN
 666 source kernel/power/Kconfig
 667 endif
 668
 669 config SECCOMP
 670         bool "Enable seccomp to safely compute untrusted bytecode"
 671         depends on PROC_FS
 672         default y
 673         help
 674           This kernel feature is useful for number crunching applications
 675           that may need to compute untrusted bytecode during their
 676           execution. By using pipes or other transports made available to
 677           the process as file descriptors supporting the read/write
 678           syscalls, it's possible to isolate those applications in
 679           their own address space using seccomp. Once seccomp is
 680           enabled via /proc/<pid>/seccomp, it cannot be disabled
 681           and the task is only allowed to execute a few safe syscalls
 682           defined by each seccomp mode.
 683
 684           If unsure, say Y. Only embedded should say N here.
 685
 686 endmenu
 687
 688 config ISA_DMA_API
 689         bool
 690         default y
 691
 692 menu "Bus options"
 693
 694 config ISA
 695         bool "Support for ISA-bus hardware"
 696         depends on PPC_PREP || PPC_CHRP
 697         select PPC_I8259
 698         help
 699           Find out whether you have ISA slots on your motherboard.  ISA is the
 700           name of a bus system, i.e. the way the CPU talks to the other stuff
 701           inside your box.  If you have an Apple machine, say N here; if you
 702           have an IBM RS/6000 or pSeries machine or a PReP machine, say Y.  If
 703           you have an embedded board, consult your board documentation.
 704
 705 config GENERIC_ISA_DMA
 706         bool
 707         depends on PPC64 || POWER4 || 6xx && !CPM2
 708         default y
 709
 710 config PPC_I8259
 711         bool
 712         default y if 85xx
 713         default n
 714
 715 config PPC_INDIRECT_PCI
 716         bool
 717         depends on PCI
 718         default y if 40x || 44x || 85xx || 83xx
 719         default n
 720
 721 config EISA
 722         bool
 723
 724 config SBUS
 725         bool
 726
 727 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
 728 config MCA
 729         bool
 730
 731 config PCI
 732         bool "PCI support" if 40x || CPM2 || 83xx || 85xx || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES)
 733         default y if !40x && !CPM2 && !8xx && !APUS && !83xx && !85xx
 734         default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS
 735         default PCI_QSPAN if !4xx && !CPM2 && 8xx
 736         help
 737           Find out whether your system includes a PCI bus. PCI is the name of
 738           a bus system, i.e. the way the CPU talks to the other stuff inside
 739           your box.  If you say Y here, the kernel will include drivers and
 740           infrastructure code to support PCI bus devices.
 741
 742 config PCI_DOMAINS
 743         bool
 744         default PCI
 745
 746 config MPC83xx_PCI2
 747         bool "  Supprt for 2nd PCI host controller"
 748         depends on PCI && MPC834x
 749         default y if MPC834x_SYS
 750
 751 config PCI_QSPAN
 752         bool "QSpan PCI"
 753         depends on !4xx && !CPM2 && 8xx
 754         select PPC_I8259
 755         help
 756           Say Y here if you have a system based on a Motorola 8xx-series
 757           embedded processor with a QSPAN PCI interface, otherwise say N.
 758
 759 config PCI_8260
 760         bool
 761         depends on PCI && 8260
 762         select PPC_INDIRECT_PCI
 763         default y
 764
 765 config 8260_PCI9
 766         bool "  Enable workaround for MPC826x erratum PCI 9"
 767         depends on PCI_8260 && !ADS8272
 768         default y
 769
 770 choice
 771         prompt "  IDMA channel for PCI 9 workaround"
 772         depends on 8260_PCI9
 773
 774 config 8260_PCI9_IDMA1
 775         bool "IDMA1"
 776
 777 config 8260_PCI9_IDMA2
 778         bool "IDMA2"
 779
 780 config 8260_PCI9_IDMA3
 781         bool "IDMA3"
 782
 783 config 8260_PCI9_IDMA4
 784         bool "IDMA4"
 785
 786 endchoice
 787
 788 source "drivers/pci/Kconfig"
 789
 790 source "drivers/pcmcia/Kconfig"
 791
 792 source "drivers/pci/hotplug/Kconfig"
 793
 794 endmenu
 795
 796 menu "Advanced setup"
 797         depends on PPC32
 798
 799 config ADVANCED_OPTIONS
 800         bool "Prompt for advanced kernel configuration options"
 801         help
 802           This option will enable prompting for a variety of advanced kernel
 803           configuration options.  These options can cause the kernel to not
 804           work if they are set incorrectly, but can be used to optimize certain
 805           aspects of kernel memory management.
 806
 807           Unless you know what you are doing, say N here.
 808
 809 comment "Default settings for advanced configuration options are used"
 810         depends on !ADVANCED_OPTIONS
 811
 812 config HIGHMEM_START_BOOL
 813         bool "Set high memory pool address"
 814         depends on ADVANCED_OPTIONS && HIGHMEM
 815         help
 816           This option allows you to set the base address of the kernel virtual
 817           area used to map high memory pages.  This can be useful in
 818           optimizing the layout of kernel virtual memory.
 819
 820           Say N here unless you know what you are doing.
 821
 822 config HIGHMEM_START
 823         hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
 824         default "0xfe000000"
 825
 826 config LOWMEM_SIZE_BOOL
 827         bool "Set maximum low memory"
 828         depends on ADVANCED_OPTIONS
 829         help
 830           This option allows you to set the maximum amount of memory which
 831           will be used as "low memory", that is, memory which the kernel can
 832           access directly, without having to set up a kernel virtual mapping.
 833           This can be useful in optimizing the layout of kernel virtual
 834           memory.
 835
 836           Say N here unless you know what you are doing.
 837
 838 config LOWMEM_SIZE
 839         hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
 840         default "0x30000000"
 841
 842 config KERNEL_START_BOOL
 843         bool "Set custom kernel base address"
 844         depends on ADVANCED_OPTIONS
 845         help
 846           This option allows you to set the kernel virtual address at which
 847           the kernel will map low memory (the kernel image will be linked at
 848           this address).  This can be useful in optimizing the virtual memory
 849           layout of the system.
 850
 851           Say N here unless you know what you are doing.
 852
 853 config KERNEL_START
 854         hex "Virtual address of kernel base" if KERNEL_START_BOOL
 855         default "0xc0000000"
 856
 857 config TASK_SIZE_BOOL
 858         bool "Set custom user task size"
 859         depends on ADVANCED_OPTIONS
 860         help
 861           This option allows you to set the amount of virtual address space
 862           allocated to user tasks.  This can be useful in optimizing the
 863           virtual memory layout of the system.
 864
 865           Say N here unless you know what you are doing.
 866
 867 config TASK_SIZE
 868         hex "Size of user task space" if TASK_SIZE_BOOL
 869         default "0x80000000"
 870
 871 config CONSISTENT_START_BOOL
 872         bool "Set custom consistent memory pool address"
 873         depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
 874         help
 875           This option allows you to set the base virtual address
 876           of the the consistent memory pool.  This pool of virtual
 877           memory is used to make consistent memory allocations.
 878
 879 config CONSISTENT_START
 880         hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL
 881         default "0xff100000" if NOT_COHERENT_CACHE
 882
 883 config CONSISTENT_SIZE_BOOL
 884         bool "Set custom consistent memory pool size"
 885         depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
 886         help
 887           This option allows you to set the size of the the
 888           consistent memory pool.  This pool of virtual memory
 889           is used to make consistent memory allocations.
 890
 891 config CONSISTENT_SIZE
 892         hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
 893         default "0x00200000" if NOT_COHERENT_CACHE
 894
 895 config BOOT_LOAD_BOOL
 896         bool "Set the boot link/load address"
 897         depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM
 898         help
 899           This option allows you to set the initial load address of the zImage
 900           or zImage.initrd file.  This can be useful if you are on a board
 901           which has a small amount of memory.
 902
 903           Say N here unless you know what you are doing.
 904
 905 config BOOT_LOAD
 906         hex "Link/load address for booting" if BOOT_LOAD_BOOL
 907         default "0x00400000" if 40x || 8xx || 8260
 908         default "0x01000000" if 44x
 909         default "0x00800000"
 910
 911 config PIN_TLB
 912         bool "Pinned Kernel TLBs (860 ONLY)"
 913         depends on ADVANCED_OPTIONS && 8xx
 914 endmenu
 915
 916 if PPC64
 917 config KERNEL_START
 918         hex
 919         default "0xc000000000000000"
 920 endif
 921
 922 source "net/Kconfig"
 923
 924 source "drivers/Kconfig"
 925
 926 source "fs/Kconfig"
 927
 928 # XXX source "arch/ppc/8xx_io/Kconfig"
 929
 930 # XXX source "arch/ppc/8260_io/Kconfig"
 931
 932 source "arch/powerpc/platforms/iseries/Kconfig"
 933
 934 source "lib/Kconfig"
 935
 936 menu "Instrumentation Support"
 937         depends on EXPERIMENTAL
 938
 939 source "arch/powerpc/oprofile/Kconfig"
 940
 941 config KPROBES
 942         bool "Kprobes (EXPERIMENTAL)"
 943         depends on PPC64
 944         help
 945           Kprobes allows you to trap at almost any kernel address and
 946           execute a callback function.  register_kprobe() establishes
 947           a probepoint and specifies the callback.  Kprobes is useful
 948           for kernel debugging, non-intrusive instrumentation and testing.
 949           If in doubt, say "N".
 950 endmenu
 951
 952 source "arch/powerpc/Kconfig.debug"
 953
 954 source "security/Kconfig"
 955
 956 config KEYS_COMPAT
 957         bool
 958         depends on COMPAT && KEYS
 959         default y
 960
 961 source "crypto/Kconfig"