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 && 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 GENERIC_TBSYNC
 304         default y
 305
 306 config PPC_PREP
 307         bool "  PowerPC Reference Platform (PReP) based machines"
 308         depends on PPC_MULTIPLATFORM && PPC32 && BROKEN
 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_SPARSEMEM_ENABLE
 585         def_bool y
 586
 587 config ARCH_SPARSEMEM_DEFAULT
 588         def_bool y
 589         depends on SMP && PPC_PSERIES
 590
 591 source "mm/Kconfig"
 592
 593 config HAVE_ARCH_EARLY_PFN_TO_NID
 594         def_bool y
 595         depends on NEED_MULTIPLE_NODES
 596
 597 config ARCH_MEMORY_PROBE
 598         def_bool y
 599         depends on MEMORY_HOTPLUG
 600
 601 # Some NUMA nodes have memory ranges that span
 602 # other nodes.  Even though a pfn is valid and
 603 # between a node's start and end pfns, it may not
 604 # reside on that node.
 605 #
 606 # This is a relatively temporary hack that should
 607 # be able to go away when sparsemem is fully in
 608 # place
 609
 610 config NODES_SPAN_OTHER_NODES
 611         def_bool y
 612         depends on NEED_MULTIPLE_NODES
 613
 614 config PPC_64K_PAGES
 615         bool "64k page size"
 616         depends on PPC64
 617         help
 618           This option changes the kernel logical page size to 64k. On machines
 619           without processor support for 64k pages, the kernel will simulate
 620           them by loading each individual 4k page on demand transparently,
 621           while on hardware with such support, it will be used to map
 622           normal application pages.
 623
 624 config SCHED_SMT
 625         bool "SMT (Hyperthreading) scheduler support"
 626         depends on PPC64 && SMP
 627         default off
 628         help
 629           SMT scheduler support improves the CPU scheduler's decision making
 630           when dealing with POWER5 cpus at a cost of slightly increased
 631           overhead in some places. If unsure say N here.
 632
 633 config PROC_DEVICETREE
 634         bool "Support for device tree in /proc"
 635         depends on PROC_FS
 636         help
 637           This option adds a device-tree directory under /proc which contains
 638           an image of the device tree that the kernel copies from Open
 639           Firmware or other boot firmware. If unsure, say Y here.
 640
 641 source "arch/powerpc/platforms/prep/Kconfig"
 642
 643 config CMDLINE_BOOL
 644         bool "Default bootloader kernel arguments"
 645         depends on !PPC_ISERIES
 646
 647 config CMDLINE
 648         string "Initial kernel command string"
 649         depends on CMDLINE_BOOL
 650         default "console=ttyS0,9600 console=tty0 root=/dev/sda2"
 651         help
 652           On some platforms, there is currently no way for the boot loader to
 653           pass arguments to the kernel. For these platforms, you can supply
 654           some command-line options at build time by entering them here.  In
 655           most cases you will need to specify the root device here.
 656
 657 if !44x || BROKEN
 658 source kernel/power/Kconfig
 659 endif
 660
 661 config SECCOMP
 662         bool "Enable seccomp to safely compute untrusted bytecode"
 663         depends on PROC_FS
 664         default y
 665         help
 666           This kernel feature is useful for number crunching applications
 667           that may need to compute untrusted bytecode during their
 668           execution. By using pipes or other transports made available to
 669           the process as file descriptors supporting the read/write
 670           syscalls, it's possible to isolate those applications in
 671           their own address space using seccomp. Once seccomp is
 672           enabled via /proc/<pid>/seccomp, it cannot be disabled
 673           and the task is only allowed to execute a few safe syscalls
 674           defined by each seccomp mode.
 675
 676           If unsure, say Y. Only embedded should say N here.
 677
 678 endmenu
 679
 680 config ISA_DMA_API
 681         bool
 682         default y
 683
 684 menu "Bus options"
 685
 686 config ISA
 687         bool "Support for ISA-bus hardware"
 688         depends on PPC_PREP || PPC_CHRP
 689         select PPC_I8259
 690         help
 691           Find out whether you have ISA slots on your motherboard.  ISA is the
 692           name of a bus system, i.e. the way the CPU talks to the other stuff
 693           inside your box.  If you have an Apple machine, say N here; if you
 694           have an IBM RS/6000 or pSeries machine or a PReP machine, say Y.  If
 695           you have an embedded board, consult your board documentation.
 696
 697 config GENERIC_ISA_DMA
 698         bool
 699         depends on PPC64 || POWER4 || 6xx && !CPM2
 700         default y
 701
 702 config PPC_I8259
 703         bool
 704         default y if 85xx
 705         default n
 706
 707 config PPC_INDIRECT_PCI
 708         bool
 709         depends on PCI
 710         default y if 40x || 44x || 85xx || 83xx
 711         default n
 712
 713 config EISA
 714         bool
 715
 716 config SBUS
 717         bool
 718
 719 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
 720 config MCA
 721         bool
 722
 723 config PCI
 724         bool "PCI support" if 40x || CPM2 || 83xx || 85xx || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES)
 725         default y if !40x && !CPM2 && !8xx && !APUS && !83xx && !85xx
 726         default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS
 727         default PCI_QSPAN if !4xx && !CPM2 && 8xx
 728         help
 729           Find out whether your system includes a PCI bus. PCI is the name of
 730           a bus system, i.e. the way the CPU talks to the other stuff inside
 731           your box.  If you say Y here, the kernel will include drivers and
 732           infrastructure code to support PCI bus devices.
 733
 734 config PCI_DOMAINS
 735         bool
 736         default PCI
 737
 738 config MPC83xx_PCI2
 739         bool "  Supprt for 2nd PCI host controller"
 740         depends on PCI && MPC834x
 741         default y if MPC834x_SYS
 742
 743 config PCI_QSPAN
 744         bool "QSpan PCI"
 745         depends on !4xx && !CPM2 && 8xx
 746         select PPC_I8259
 747         help
 748           Say Y here if you have a system based on a Motorola 8xx-series
 749           embedded processor with a QSPAN PCI interface, otherwise say N.
 750
 751 config PCI_8260
 752         bool
 753         depends on PCI && 8260
 754         select PPC_INDIRECT_PCI
 755         default y
 756
 757 config 8260_PCI9
 758         bool "  Enable workaround for MPC826x erratum PCI 9"
 759         depends on PCI_8260 && !ADS8272
 760         default y
 761
 762 choice
 763         prompt "  IDMA channel for PCI 9 workaround"
 764         depends on 8260_PCI9
 765
 766 config 8260_PCI9_IDMA1
 767         bool "IDMA1"
 768
 769 config 8260_PCI9_IDMA2
 770         bool "IDMA2"
 771
 772 config 8260_PCI9_IDMA3
 773         bool "IDMA3"
 774
 775 config 8260_PCI9_IDMA4
 776         bool "IDMA4"
 777
 778 endchoice
 779
 780 source "drivers/pci/Kconfig"
 781
 782 source "drivers/pcmcia/Kconfig"
 783
 784 source "drivers/pci/hotplug/Kconfig"
 785
 786 endmenu
 787
 788 menu "Advanced setup"
 789         depends on PPC32
 790
 791 config ADVANCED_OPTIONS
 792         bool "Prompt for advanced kernel configuration options"
 793         help
 794           This option will enable prompting for a variety of advanced kernel
 795           configuration options.  These options can cause the kernel to not
 796           work if they are set incorrectly, but can be used to optimize certain
 797           aspects of kernel memory management.
 798
 799           Unless you know what you are doing, say N here.
 800
 801 comment "Default settings for advanced configuration options are used"
 802         depends on !ADVANCED_OPTIONS
 803
 804 config HIGHMEM_START_BOOL
 805         bool "Set high memory pool address"
 806         depends on ADVANCED_OPTIONS && HIGHMEM
 807         help
 808           This option allows you to set the base address of the kernel virtual
 809           area used to map high memory pages.  This can be useful in
 810           optimizing the layout of kernel virtual memory.
 811
 812           Say N here unless you know what you are doing.
 813
 814 config HIGHMEM_START
 815         hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
 816         default "0xfe000000"
 817
 818 config LOWMEM_SIZE_BOOL
 819         bool "Set maximum low memory"
 820         depends on ADVANCED_OPTIONS
 821         help
 822           This option allows you to set the maximum amount of memory which
 823           will be used as "low memory", that is, memory which the kernel can
 824           access directly, without having to set up a kernel virtual mapping.
 825           This can be useful in optimizing the layout of kernel virtual
 826           memory.
 827
 828           Say N here unless you know what you are doing.
 829
 830 config LOWMEM_SIZE
 831         hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
 832         default "0x30000000"
 833
 834 config KERNEL_START_BOOL
 835         bool "Set custom kernel base address"
 836         depends on ADVANCED_OPTIONS
 837         help
 838           This option allows you to set the kernel virtual address at which
 839           the kernel will map low memory (the kernel image will be linked at
 840           this address).  This can be useful in optimizing the virtual memory
 841           layout of the system.
 842
 843           Say N here unless you know what you are doing.
 844
 845 config KERNEL_START
 846         hex "Virtual address of kernel base" if KERNEL_START_BOOL
 847         default "0xc0000000"
 848
 849 config TASK_SIZE_BOOL
 850         bool "Set custom user task size"
 851         depends on ADVANCED_OPTIONS
 852         help
 853           This option allows you to set the amount of virtual address space
 854           allocated to user tasks.  This can be useful in optimizing the
 855           virtual memory layout of the system.
 856
 857           Say N here unless you know what you are doing.
 858
 859 config TASK_SIZE
 860         hex "Size of user task space" if TASK_SIZE_BOOL
 861         default "0x80000000"
 862
 863 config CONSISTENT_START_BOOL
 864         bool "Set custom consistent memory pool address"
 865         depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
 866         help
 867           This option allows you to set the base virtual address
 868           of the the consistent memory pool.  This pool of virtual
 869           memory is used to make consistent memory allocations.
 870
 871 config CONSISTENT_START
 872         hex "Base virtual address of consistent memory pool" if CONSISTENT_START_BOOL
 873         default "0xff100000" if NOT_COHERENT_CACHE
 874
 875 config CONSISTENT_SIZE_BOOL
 876         bool "Set custom consistent memory pool size"
 877         depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE
 878         help
 879           This option allows you to set the size of the the
 880           consistent memory pool.  This pool of virtual memory
 881           is used to make consistent memory allocations.
 882
 883 config CONSISTENT_SIZE
 884         hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL
 885         default "0x00200000" if NOT_COHERENT_CACHE
 886
 887 config BOOT_LOAD_BOOL
 888         bool "Set the boot link/load address"
 889         depends on ADVANCED_OPTIONS && !PPC_MULTIPLATFORM
 890         help
 891           This option allows you to set the initial load address of the zImage
 892           or zImage.initrd file.  This can be useful if you are on a board
 893           which has a small amount of memory.
 894
 895           Say N here unless you know what you are doing.
 896
 897 config BOOT_LOAD
 898         hex "Link/load address for booting" if BOOT_LOAD_BOOL
 899         default "0x00400000" if 40x || 8xx || 8260
 900         default "0x01000000" if 44x
 901         default "0x00800000"
 902
 903 config PIN_TLB
 904         bool "Pinned Kernel TLBs (860 ONLY)"
 905         depends on ADVANCED_OPTIONS && 8xx
 906 endmenu
 907
 908 if PPC64
 909 config KERNEL_START
 910         hex
 911         default "0xc000000000000000"
 912 endif
 913
 914 source "net/Kconfig"
 915
 916 source "drivers/Kconfig"
 917
 918 source "fs/Kconfig"
 919
 920 # XXX source "arch/ppc/8xx_io/Kconfig"
 921
 922 # XXX source "arch/ppc/8260_io/Kconfig"
 923
 924 source "arch/powerpc/platforms/iseries/Kconfig"
 925
 926 source "lib/Kconfig"
 927
 928 menu "Instrumentation Support"
 929         depends on EXPERIMENTAL
 930
 931 source "arch/powerpc/oprofile/Kconfig"
 932
 933 config KPROBES
 934         bool "Kprobes (EXPERIMENTAL)"
 935         depends on PPC64
 936         help
 937           Kprobes allows you to trap at almost any kernel address and
 938           execute a callback function.  register_kprobe() establishes
 939           a probepoint and specifies the callback.  Kprobes is useful
 940           for kernel debugging, non-intrusive instrumentation and testing.
 941           If in doubt, say "N".
 942 endmenu
 943
 944 source "arch/powerpc/Kconfig.debug"
 945
 946 source "security/Kconfig"
 947
 948 config KEYS_COMPAT
 949         bool
 950         depends on COMPAT && KEYS
 951         default y
 952
 953 source "crypto/Kconfig"