arch/sh/Kconfig

   1 #
   2 # For a description of the syntax of this configuration file,
   3 # see Documentation/kbuild/kconfig-language.txt.
   4 #
   5
   6 mainmenu "Linux/SuperH Kernel Configuration"
   7
   8 config SUPERH
   9         def_bool y
  10         select EMBEDDED
  11         select HAVE_IDE
  12         select HAVE_OPROFILE
  13         help
  14           The SuperH is a RISC processor targeted for use in embedded systems
  15           and consumer electronics; it was also used in the Sega Dreamcast
  16           gaming console.  The SuperH port has a home page at
  17           <http://www.linux-sh.org/>.
  18
  19 config SUPERH32
  20         def_bool !SUPERH64
  21
  22 config SUPERH64
  23         def_bool y if CPU_SH5
  24
  25 config RWSEM_GENERIC_SPINLOCK
  26         def_bool y
  27
  28 config RWSEM_XCHGADD_ALGORITHM
  29         bool
  30
  31 config GENERIC_BUG
  32         def_bool y
  33         depends on BUG && SUPERH32
  34
  35 config GENERIC_FIND_NEXT_BIT
  36         def_bool y
  37
  38 config GENERIC_HWEIGHT
  39         def_bool y
  40
  41 config GENERIC_HARDIRQS
  42         def_bool y
  43
  44 config GENERIC_IRQ_PROBE
  45         def_bool y
  46
  47 config GENERIC_CALIBRATE_DELAY
  48         def_bool y
  49
  50 config GENERIC_IOMAP
  51         bool
  52
  53 config GENERIC_TIME
  54         def_bool n
  55
  56 config GENERIC_CLOCKEVENTS
  57         def_bool n
  58
  59 config SYS_SUPPORTS_PM
  60         bool
  61
  62 config SYS_SUPPORTS_APM_EMULATION
  63         bool
  64         select SYS_SUPPORTS_PM
  65
  66 config SYS_SUPPORTS_SMP
  67         bool
  68
  69 config SYS_SUPPORTS_NUMA
  70         bool
  71
  72 config SYS_SUPPORTS_PCI
  73         bool
  74
  75 config STACKTRACE_SUPPORT
  76         def_bool y
  77
  78 config LOCKDEP_SUPPORT
  79         def_bool y
  80
  81 config ARCH_HAS_ILOG2_U32
  82         def_bool n
  83
  84 config ARCH_HAS_ILOG2_U64
  85         def_bool n
  86
  87 config ARCH_NO_VIRT_TO_BUS
  88         def_bool y
  89
  90 config ARCH_SUPPORTS_AOUT
  91         def_bool y
  92
  93 config IO_TRAPPED
  94         bool
  95
  96 source "init/Kconfig"
  97
  98 menu "System type"
  99
 100 #
 101 # Processor families
 102 #
 103 config CPU_SH2
 104         bool
 105
 106 config CPU_SH2A
 107         bool
 108         select CPU_SH2
 109
 110 config CPU_SH3
 111         bool
 112         select CPU_HAS_INTEVT
 113         select CPU_HAS_SR_RB
 114
 115 config CPU_SH4
 116         bool
 117         select CPU_HAS_INTEVT
 118         select CPU_HAS_SR_RB
 119         select CPU_HAS_PTEA if !CPU_SH4A || CPU_SHX2
 120         select CPU_HAS_FPU if !CPU_SH4AL_DSP
 121
 122 config CPU_SH4A
 123         bool
 124         select CPU_SH4
 125
 126 config CPU_SH4AL_DSP
 127         bool
 128         select CPU_SH4A
 129         select CPU_HAS_DSP
 130
 131 config CPU_SH5
 132         bool
 133         select CPU_HAS_FPU
 134
 135 config CPU_SHX2
 136         bool
 137
 138 config CPU_SHX3
 139         bool
 140
 141 choice
 142         prompt "Processor sub-type selection"
 143
 144 #
 145 # Processor subtypes
 146 #
 147
 148 # SH-2 Processor Support
 149
 150 config CPU_SUBTYPE_SH7619
 151         bool "Support SH7619 processor"
 152         select CPU_SH2
 153
 154 # SH-2A Processor Support
 155
 156 config CPU_SUBTYPE_SH7203
 157         bool "Support SH7203 processor"
 158         select CPU_SH2A
 159         select CPU_HAS_FPU
 160
 161 config CPU_SUBTYPE_SH7206
 162         bool "Support SH7206 processor"
 163         select CPU_SH2A
 164
 165 config CPU_SUBTYPE_SH7263
 166         bool "Support SH7263 processor"
 167         select CPU_SH2A
 168         select CPU_HAS_FPU
 169
 170 config CPU_SUBTYPE_MXG
 171         bool "Support MX-G processor"
 172         select CPU_SH2A
 173         help
 174           Select MX-G if running on an R8A03022BG part.
 175
 176 # SH-3 Processor Support
 177
 178 config CPU_SUBTYPE_SH7705
 179         bool "Support SH7705 processor"
 180         select CPU_SH3
 181
 182 config CPU_SUBTYPE_SH7706
 183         bool "Support SH7706 processor"
 184         select CPU_SH3
 185         help
 186           Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
 187
 188 config CPU_SUBTYPE_SH7707
 189         bool "Support SH7707 processor"
 190         select CPU_SH3
 191         help
 192           Select SH7707 if you have a  60 Mhz SH-3 HD6417707 CPU.
 193
 194 config CPU_SUBTYPE_SH7708
 195         bool "Support SH7708 processor"
 196         select CPU_SH3
 197         help
 198           Select SH7708 if you have a  60 Mhz SH-3 HD6417708S or
 199           if you have a 100 Mhz SH-3 HD6417708R CPU.
 200
 201 config CPU_SUBTYPE_SH7709
 202         bool "Support SH7709 processor"
 203         select CPU_SH3
 204         help
 205           Select SH7709 if you have a  80 Mhz SH-3 HD6417709 CPU.
 206
 207 config CPU_SUBTYPE_SH7710
 208         bool "Support SH7710 processor"
 209         select CPU_SH3
 210         select CPU_HAS_DSP
 211         help
 212           Select SH7710 if you have a SH3-DSP SH7710 CPU.
 213
 214 config CPU_SUBTYPE_SH7712
 215         bool "Support SH7712 processor"
 216         select CPU_SH3
 217         select CPU_HAS_DSP
 218         help
 219           Select SH7712 if you have a SH3-DSP SH7712 CPU.
 220
 221 config CPU_SUBTYPE_SH7720
 222         bool "Support SH7720 processor"
 223         select CPU_SH3
 224         select CPU_HAS_DSP
 225         help
 226           Select SH7720 if you have a SH3-DSP SH7720 CPU.
 227
 228 config CPU_SUBTYPE_SH7721
 229         bool "Support SH7721 processor"
 230         select CPU_SH3
 231         select CPU_HAS_DSP
 232         help
 233           Select SH7721 if you have a SH3-DSP SH7721 CPU.
 234
 235 # SH-4 Processor Support
 236
 237 config CPU_SUBTYPE_SH7750
 238         bool "Support SH7750 processor"
 239         select CPU_SH4
 240         help
 241           Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
 242
 243 config CPU_SUBTYPE_SH7091
 244         bool "Support SH7091 processor"
 245         select CPU_SH4
 246         help
 247           Select SH7091 if you have an SH-4 based Sega device (such as
 248           the Dreamcast, Naomi, and Naomi 2).
 249
 250 config CPU_SUBTYPE_SH7750R
 251         bool "Support SH7750R processor"
 252         select CPU_SH4
 253
 254 config CPU_SUBTYPE_SH7750S
 255         bool "Support SH7750S processor"
 256         select CPU_SH4
 257
 258 config CPU_SUBTYPE_SH7751
 259         bool "Support SH7751 processor"
 260         select CPU_SH4
 261         help
 262           Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
 263           or if you have a HD6417751R CPU.
 264
 265 config CPU_SUBTYPE_SH7751R
 266         bool "Support SH7751R processor"
 267         select CPU_SH4
 268
 269 config CPU_SUBTYPE_SH7760
 270         bool "Support SH7760 processor"
 271         select CPU_SH4
 272
 273 config CPU_SUBTYPE_SH4_202
 274         bool "Support SH4-202 processor"
 275         select CPU_SH4
 276
 277 # SH-4A Processor Support
 278
 279 config CPU_SUBTYPE_SH7723
 280         bool "Support SH7723 processor"
 281         select CPU_SH4A
 282         select CPU_SHX2
 283         select ARCH_SPARSEMEM_ENABLE
 284         select SYS_SUPPORTS_NUMA
 285         help
 286           Select SH7723 if you have an SH-MobileR2 CPU.
 287
 288 config CPU_SUBTYPE_SH7763
 289         bool "Support SH7763 processor"
 290         select CPU_SH4A
 291         help
 292           Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
 293
 294 config CPU_SUBTYPE_SH7770
 295         bool "Support SH7770 processor"
 296         select CPU_SH4A
 297
 298 config CPU_SUBTYPE_SH7780
 299         bool "Support SH7780 processor"
 300         select CPU_SH4A
 301
 302 config CPU_SUBTYPE_SH7785
 303         bool "Support SH7785 processor"
 304         select CPU_SH4A
 305         select CPU_SHX2
 306         select ARCH_SPARSEMEM_ENABLE
 307         select SYS_SUPPORTS_NUMA
 308
 309 config CPU_SUBTYPE_SHX3
 310         bool "Support SH-X3 processor"
 311         select CPU_SH4A
 312         select CPU_SHX3
 313         select ARCH_SPARSEMEM_ENABLE
 314         select SYS_SUPPORTS_NUMA
 315         select SYS_SUPPORTS_SMP
 316
 317 # SH4AL-DSP Processor Support
 318
 319 config CPU_SUBTYPE_SH7343
 320         bool "Support SH7343 processor"
 321         select CPU_SH4AL_DSP
 322
 323 config CPU_SUBTYPE_SH7722
 324         bool "Support SH7722 processor"
 325         select CPU_SH4AL_DSP
 326         select CPU_SHX2
 327         select ARCH_SPARSEMEM_ENABLE
 328         select SYS_SUPPORTS_NUMA
 329
 330 config CPU_SUBTYPE_SH7366
 331         bool "Support SH7366 processor"
 332         select CPU_SH4AL_DSP
 333         select CPU_SHX2
 334         select ARCH_SPARSEMEM_ENABLE
 335         select SYS_SUPPORTS_NUMA
 336
 337 # SH-5 Processor Support
 338
 339 config CPU_SUBTYPE_SH5_101
 340         bool "Support SH5-101 processor"
 341         select CPU_SH5
 342
 343 config CPU_SUBTYPE_SH5_103
 344         bool "Support SH5-103 processor"
 345         select CPU_SH5
 346
 347 endchoice
 348
 349 source "arch/sh/mm/Kconfig"
 350 source "arch/sh/Kconfig.cpu"
 351
 352 menu "Board support"
 353
 354 config SOLUTION_ENGINE
 355         bool
 356
 357 config SH_SOLUTION_ENGINE
 358         bool "SolutionEngine"
 359         select SOLUTION_ENGINE
 360         select CPU_HAS_IPR_IRQ
 361         depends on CPU_SUBTYPE_SH7705 || CPU_SUBTYPE_SH7709 || CPU_SUBTYPE_SH7710 || \
 362           CPU_SUBTYPE_SH7712 || CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7750S || \
 363           CPU_SUBTYPE_SH7750R
 364         help
 365           Select SolutionEngine if configuring for a Hitachi SH7705, SH7709,
 366           SH7710, SH7712, SH7750, SH7750S or SH7750R evaluation board.
 367
 368 config SH_7206_SOLUTION_ENGINE
 369         bool "SolutionEngine7206"
 370         select SOLUTION_ENGINE
 371         depends on CPU_SUBTYPE_SH7206
 372         help
 373           Select 7206 SolutionEngine if configuring for a Hitachi SH7206
 374           evaluation board.
 375
 376 config SH_7619_SOLUTION_ENGINE
 377         bool "SolutionEngine7619"
 378         select SOLUTION_ENGINE
 379         depends on CPU_SUBTYPE_SH7619
 380         help
 381           Select 7619 SolutionEngine if configuring for a Hitachi SH7619
 382           evaluation board.
 383
 384 config SH_7721_SOLUTION_ENGINE
 385         bool "SolutionEngine7721"
 386         select SOLUTION_ENGINE
 387         depends on CPU_SUBTYPE_SH7721
 388         help
 389           Select 7721 SolutionEngine if configuring for a Hitachi SH7721
 390           evaluation board.
 391
 392 config SH_7722_SOLUTION_ENGINE
 393         bool "SolutionEngine7722"
 394         select SOLUTION_ENGINE
 395         depends on CPU_SUBTYPE_SH7722
 396         help
 397           Select 7722 SolutionEngine if configuring for a Hitachi SH772
 398           evaluation board.
 399
 400 config SH_7751_SOLUTION_ENGINE
 401         bool "SolutionEngine7751"
 402         select SOLUTION_ENGINE
 403         select CPU_HAS_IPR_IRQ
 404         depends on CPU_SUBTYPE_SH7751
 405         help
 406           Select 7751 SolutionEngine if configuring for a Hitachi SH7751
 407           evaluation board.
 408
 409 config SH_7780_SOLUTION_ENGINE
 410         bool "SolutionEngine7780"
 411         select SOLUTION_ENGINE
 412         select SYS_SUPPORTS_PCI
 413         depends on CPU_SUBTYPE_SH7780
 414         help
 415           Select 7780 SolutionEngine if configuring for a Renesas SH7780
 416           evaluation board.
 417
 418 config SH_7343_SOLUTION_ENGINE
 419         bool "SolutionEngine7343"
 420         select SOLUTION_ENGINE
 421         depends on CPU_SUBTYPE_SH7343
 422         help
 423           Select 7343 SolutionEngine if configuring for a Hitachi
 424           SH7343 (SH-Mobile 3AS) evaluation board.
 425
 426 config SH_7751_SYSTEMH
 427         bool "SystemH7751R"
 428         depends on CPU_SUBTYPE_SH7751R
 429         help
 430           Select SystemH if you are configuring for a Renesas SystemH
 431           7751R evaluation board.
 432
 433 config SH_HP6XX
 434         bool "HP6XX"
 435         select SYS_SUPPORTS_APM_EMULATION
 436         select HD6446X_SERIES
 437         depends on CPU_SUBTYPE_SH7709
 438         help
 439           Select HP6XX if configuring for a HP jornada HP6xx.
 440           More information (hardware only) at
 441           <http://www.hp.com/jornada/>.
 442
 443 config SH_DREAMCAST
 444         bool "Dreamcast"
 445         select SYS_SUPPORTS_PCI
 446         depends on CPU_SUBTYPE_SH7091
 447         help
 448           Select Dreamcast if configuring for a SEGA Dreamcast.
 449           More information at <http://www.linux-sh.org>
 450
 451 config SH_SH03
 452         bool "Interface CTP/PCI-SH03"
 453         depends on CPU_SUBTYPE_SH7751
 454         select CPU_HAS_IPR_IRQ
 455         select SYS_SUPPORTS_PCI
 456         help
 457           CTP/PCI-SH03 is a CPU module computer that is produced
 458           by Interface Corporation.
 459           More information at <http://www.interface.co.jp>
 460
 461 config SH_SECUREEDGE5410
 462         bool "SecureEdge5410"
 463         depends on CPU_SUBTYPE_SH7751R
 464         select CPU_HAS_IPR_IRQ
 465         select SYS_SUPPORTS_PCI
 466         help
 467           Select SecureEdge5410 if configuring for a SnapGear SH board.
 468           This includes both the OEM SecureEdge products as well as the
 469           SME product line.
 470
 471 config SH_RTS7751R2D
 472         bool "RTS7751R2D"
 473         depends on CPU_SUBTYPE_SH7751R
 474         select SYS_SUPPORTS_PCI
 475         select IO_TRAPPED
 476         help
 477           Select RTS7751R2D if configuring for a Renesas Technology
 478           Sales SH-Graphics board.
 479
 480 config SH_SDK7780
 481         bool "SDK7780R3"
 482         depends on CPU_SUBTYPE_SH7780
 483         select SYS_SUPPORTS_PCI
 484         help
 485           Select SDK7780 if configuring for a Renesas SH7780 SDK7780R3
 486           evaluation board.
 487
 488 config SH_HIGHLANDER
 489         bool "Highlander"
 490         depends on CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
 491         select SYS_SUPPORTS_PCI
 492         select IO_TRAPPED
 493
 494 config SH_MIGOR
 495         bool "Migo-R"
 496         depends on CPU_SUBTYPE_SH7722
 497         help
 498           Select Migo-R if configuring for the SH7722 Migo-R platform
 499           by Renesas System Solutions Asia Pte. Ltd.
 500
 501 config SH_EDOSK7705
 502         bool "EDOSK7705"
 503         depends on CPU_SUBTYPE_SH7705
 504
 505 config SH_SH4202_MICRODEV
 506         bool "SH4-202 MicroDev"
 507         depends on CPU_SUBTYPE_SH4_202
 508         help
 509           Select SH4-202 MicroDev if configuring for a SuperH MicroDev board
 510           with an SH4-202 CPU.
 511
 512 config SH_LANDISK
 513         bool "LANDISK"
 514         depends on CPU_SUBTYPE_SH7751R
 515         select SYS_SUPPORTS_PCI
 516         help
 517           I-O DATA DEVICE, INC. "LANDISK Series" support.
 518
 519 config SH_TITAN
 520         bool "TITAN"
 521         depends on CPU_SUBTYPE_SH7751R
 522         select CPU_HAS_IPR_IRQ
 523         select SYS_SUPPORTS_PCI
 524         help
 525           Select Titan if you are configuring for a Nimble Microsystems
 526           NetEngine NP51R.
 527
 528 config SH_SHMIN
 529         bool "SHMIN"
 530         depends on CPU_SUBTYPE_SH7706
 531         select CPU_HAS_IPR_IRQ
 532         help
 533           Select SHMIN if configuring for the SHMIN board.
 534
 535 config SH_LBOX_RE2
 536         bool "L-BOX RE2"
 537         depends on CPU_SUBTYPE_SH7751R
 538         select SYS_SUPPORTS_PCI
 539         help
 540           Select L-BOX RE2 if configuring for the NTT COMWARE L-BOX RE2.
 541
 542 config SH_X3PROTO
 543         bool "SH-X3 Prototype board"
 544         depends on CPU_SUBTYPE_SHX3
 545
 546 config SH_MAGIC_PANEL_R2
 547         bool "Magic Panel R2"
 548         depends on CPU_SUBTYPE_SH7720
 549         help
 550           Select Magic Panel R2 if configuring for Magic Panel R2.
 551
 552 config SH_CAYMAN
 553         bool "Hitachi Cayman"
 554         depends on CPU_SUBTYPE_SH5_101 || CPU_SUBTYPE_SH5_103
 555         select SYS_SUPPORTS_PCI
 556
 557 endmenu
 558
 559 source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
 560 source "arch/sh/boards/renesas/r7780rp/Kconfig"
 561 source "arch/sh/boards/renesas/sdk7780/Kconfig"
 562 source "arch/sh/boards/magicpanelr2/Kconfig"
 563
 564 menu "Timer and clock configuration"
 565
 566 config SH_TMU
 567         def_bool y
 568         prompt "TMU timer support"
 569         depends on CPU_SH3 || CPU_SH4
 570         select GENERIC_TIME
 571         select GENERIC_CLOCKEVENTS
 572         help
 573           This enables the use of the TMU as the system timer.
 574
 575 config SH_CMT
 576         def_bool y
 577         prompt "CMT timer support"
 578         depends on CPU_SH2 && !CPU_SUBTYPE_MXG
 579         help
 580           This enables the use of the CMT as the system timer.
 581
 582 config SH_MTU2
 583         def_bool n
 584         prompt "MTU2 timer support"
 585         depends on CPU_SH2A
 586         help
 587           This enables the use of the MTU2 as the system timer.
 588
 589 config SH_TIMER_IRQ
 590         int
 591         default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 || \
 592                         CPU_SUBTYPE_SH7763
 593         default "86" if CPU_SUBTYPE_SH7619
 594         default "140" if CPU_SUBTYPE_SH7206
 595         default "142" if CPU_SUBTYPE_SH7203
 596         default "238" if CPU_SUBTYPE_MXG
 597         default "16"
 598
 599 config SH_PCLK_FREQ
 600         int "Peripheral clock frequency (in Hz)"
 601         default "27000000" if CPU_SUBTYPE_SH7343
 602         default "31250000" if CPU_SUBTYPE_SH7619
 603         default "32000000" if CPU_SUBTYPE_SH7722
 604         default "33333333" if CPU_SUBTYPE_SH7770 || CPU_SUBTYPE_SH7723 || \
 605                               CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
 606                               CPU_SUBTYPE_SH7203 || CPU_SUBTYPE_SH7206 || \
 607                               CPU_SUBTYPE_SH7263 || CPU_SUBTYPE_MXG
 608         default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
 609         default "66000000" if CPU_SUBTYPE_SH4_202
 610         default "50000000"
 611         help
 612           This option is used to specify the peripheral clock frequency.
 613           This is necessary for determining the reference clock value on
 614           platforms lacking an RTC.
 615
 616 config SH_CLK_MD
 617         int "CPU Mode Pin Setting"
 618         depends on CPU_SH2
 619         default 6 if CPU_SUBTYPE_SH7206
 620         default 5 if CPU_SUBTYPE_SH7619
 621         default 0
 622         help
 623           MD2 - MD0 pin setting.
 624
 625 source "kernel/time/Kconfig"
 626
 627 endmenu
 628
 629 menu "CPU Frequency scaling"
 630
 631 source "drivers/cpufreq/Kconfig"
 632
 633 config SH_CPU_FREQ
 634         tristate "SuperH CPU Frequency driver"
 635         depends on CPU_FREQ
 636         select CPU_FREQ_TABLE
 637         help
 638           This adds the cpufreq driver for SuperH. At present, only
 639           the SH-4 is supported.
 640
 641           For details, take a look at <file:Documentation/cpu-freq>.
 642
 643           If unsure, say N.
 644
 645 endmenu
 646
 647 source "arch/sh/drivers/Kconfig"
 648
 649 endmenu
 650
 651 config ISA_DMA_API
 652         bool
 653
 654 menu "Kernel features"
 655
 656 source kernel/Kconfig.hz
 657
 658 config KEXEC
 659         bool "kexec system call (EXPERIMENTAL)"
 660         depends on SUPERH32 && EXPERIMENTAL
 661         help
 662           kexec is a system call that implements the ability to shutdown your
 663           current kernel, and to start another kernel.  It is like a reboot
 664           but it is independent of the system firmware.  And like a reboot
 665           you can start any kernel with it, not just Linux.
 666
 667           The name comes from the similarity to the exec system call.
 668
 669           It is an ongoing process to be certain the hardware in a machine
 670           is properly shutdown, so do not be surprised if this code does not
 671           initially work for you.  It may help to enable device hotplugging
 672           support.  As of this writing the exact hardware interface is
 673           strongly in flux, so no good recommendation can be made.
 674
 675 config CRASH_DUMP
 676         bool "kernel crash dumps (EXPERIMENTAL)"
 677         depends on SUPERH32 && EXPERIMENTAL
 678         help
 679           Generate crash dump after being started by kexec.
 680           This should be normally only set in special crash dump kernels
 681           which are loaded in the main kernel with kexec-tools into
 682           a specially reserved region and then later executed after
 683           a crash by kdump/kexec. The crash dump kernel must be compiled
 684           to a memory address not used by the main kernel using
 685           MEMORY_START.
 686
 687           For more details see Documentation/kdump/kdump.txt
 688
 689 config SMP
 690         bool "Symmetric multi-processing support"
 691         depends on SYS_SUPPORTS_SMP
 692         ---help---
 693           This enables support for systems with more than one CPU. If you have
 694           a system with only one CPU, like most personal computers, say N. If
 695           you have a system with more than one CPU, say Y.
 696
 697           If you say N here, the kernel will run on single and multiprocessor
 698           machines, but will use only one CPU of a multiprocessor machine. If
 699           you say Y here, the kernel will run on many, but not all,
 700           singleprocessor machines. On a singleprocessor machine, the kernel
 701           will run faster if you say N here.
 702
 703           People using multiprocessor machines who say Y here should also say
 704           Y to "Enhanced Real Time Clock Support", below.
 705
 706           See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
 707           available at <http://www.tldp.org/docs.html#howto>.
 708
 709           If you don't know what to do here, say N.
 710
 711 config NR_CPUS
 712         int "Maximum number of CPUs (2-32)"
 713         range 2 32
 714         depends on SMP
 715         default "4" if CPU_SHX3
 716         default "2"
 717         help
 718           This allows you to specify the maximum number of CPUs which this
 719           kernel will support.  The maximum supported value is 32 and the
 720           minimum value which makes sense is 2.
 721
 722           This is purely to save memory - each supported CPU adds
 723           approximately eight kilobytes to the kernel image.
 724
 725 source "kernel/Kconfig.preempt"
 726
 727 config GUSA
 728         def_bool y
 729         depends on !SMP && SUPERH32
 730         help
 731           This enables support for gUSA (general UserSpace Atomicity).
 732           This is the default implementation for both UP and non-ll/sc
 733           CPUs, and is used by the libc, amongst others.
 734
 735           For additional information, design information can be found
 736           in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
 737
 738           This should only be disabled for special cases where alternate
 739           atomicity implementations exist.
 740
 741 config GUSA_RB
 742         bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
 743         depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
 744         help
 745           Enabling this option will allow the kernel to implement some
 746           atomic operations using a software implemention of load-locked/
 747           store-conditional (LLSC). On machines which do not have hardware
 748           LLSC, this should be more efficient than the other alternative of
 749           disabling insterrupts around the atomic sequence.
 750
 751 endmenu
 752
 753 menu "Boot options"
 754
 755 config ZERO_PAGE_OFFSET
 756         hex "Zero page offset"
 757         default "0x00004000" if SH_SH03
 758         default "0x00010000" if PAGE_SIZE_64KB
 759         default "0x00002000" if PAGE_SIZE_8KB
 760         default "0x00001000"
 761         help
 762           This sets the default offset of zero page.
 763
 764 config BOOT_LINK_OFFSET
 765         hex "Link address offset for booting"
 766         default "0x00800000"
 767         help
 768           This option allows you to set the link address offset of the zImage.
 769           This can be useful if you are on a board which has a small amount of
 770           memory.
 771
 772 config UBC_WAKEUP
 773         bool "Wakeup UBC on startup"
 774         depends on CPU_SH4 && !CPU_SH4A
 775         help
 776           Selecting this option will wakeup the User Break Controller (UBC) on
 777           startup. Although the UBC is left in an awake state when the processor
 778           comes up, some boot loaders misbehave by putting the UBC to sleep in a
 779           power saving state, which causes issues with things like ptrace().
 780
 781           If unsure, say N.
 782
 783 config CMDLINE_BOOL
 784         bool "Default bootloader kernel arguments"
 785
 786 config CMDLINE
 787         string "Initial kernel command string"
 788         depends on CMDLINE_BOOL
 789         default "console=ttySC1,115200"
 790
 791 endmenu
 792
 793 menu "Bus options"
 794
 795 # Even on SuperH devices which don't have an ISA bus,
 796 # this variable helps the PCMCIA modules handle
 797 # IRQ requesting properly -- Greg Banks.
 798 #
 799 # Though we're generally not interested in it when
 800 # we're not using PCMCIA, so we make it dependent on
 801 # PCMCIA outright. -- PFM.
 802 config ISA
 803         def_bool y
 804         depends on PCMCIA && HD6446X_SERIES
 805         help
 806           Find out whether you have ISA slots on your motherboard.  ISA is the
 807           name of a bus system, i.e. the way the CPU talks to the other stuff
 808           inside your box.  Other bus systems are PCI, EISA, MicroChannel
 809           (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
 810           newer boards don't support it.  If you have ISA, say Y, otherwise N.
 811
 812 config EISA
 813         bool
 814         ---help---
 815           The Extended Industry Standard Architecture (EISA) bus was
 816           developed as an open alternative to the IBM MicroChannel bus.
 817
 818           The EISA bus provided some of the features of the IBM MicroChannel
 819           bus while maintaining backward compatibility with cards made for
 820           the older ISA bus.  The EISA bus saw limited use between 1988 and
 821           1995 when it was made obsolete by the PCI bus.
 822
 823           Say Y here if you are building a kernel for an EISA-based machine.
 824
 825           Otherwise, say N.
 826
 827 config MCA
 828         bool
 829         help
 830           MicroChannel Architecture is found in some IBM PS/2 machines and
 831           laptops.  It is a bus system similar to PCI or ISA. See
 832           <file:Documentation/mca.txt> (and especially the web page given
 833           there) before attempting to build an MCA bus kernel.
 834
 835 config SBUS
 836         bool
 837
 838 config SUPERHYWAY
 839         tristate "SuperHyway Bus support"
 840         depends on CPU_SUBTYPE_SH4_202
 841
 842 config MAPLE
 843        bool "Maple Bus support"
 844        depends on SH_DREAMCAST
 845        help
 846          The Maple Bus is SEGA's serial communication bus for peripherals
 847          on the Dreamcast. Without this bus support you won't be able to
 848          get your Dreamcast keyboard etc to work, so most users
 849          probably want to say 'Y' here, unless you are only using the
 850          Dreamcast with a serial line terminal or a remote network
 851          connection.
 852
 853 config CF_ENABLER
 854         bool "Compact Flash Enabler support"
 855         depends on SOLUTION_ENGINE || SH_SH03
 856         ---help---
 857           Compact Flash is a small, removable mass storage device introduced
 858           in 1994 originally as a PCMCIA device.  If you say `Y' here, you
 859           compile in support for Compact Flash devices directly connected to
 860           a SuperH processor.  A Compact Flash FAQ is available at
 861           <http://www.compactflash.org/faqs/faq.htm>.
 862
 863           If your board has "Directly Connected" CompactFlash at area 5 or 6,
 864           you may want to enable this option.  Then, you can use CF as
 865           primary IDE drive (only tested for SanDisk).
 866
 867           If in doubt, select 'N'.
 868
 869 choice
 870         prompt "Compact Flash Connection Area"
 871         depends on CF_ENABLER
 872         default CF_AREA6
 873
 874 config CF_AREA5
 875         bool "Area5"
 876         help
 877           If your board has "Directly Connected" CompactFlash, You should
 878           select the area where your CF is connected to.
 879
 880           - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
 881           - "Area6" if it is connected to Area 6 (0x18000000)
 882
 883           "Area6" will work for most boards.
 884
 885 config CF_AREA6
 886         bool "Area6"
 887
 888 endchoice
 889
 890 config CF_BASE_ADDR
 891         hex
 892         depends on CF_ENABLER
 893         default "0xb8000000" if CF_AREA6
 894         default "0xb4000000" if CF_AREA5
 895
 896 source "arch/sh/drivers/pci/Kconfig"
 897
 898 source "drivers/pci/Kconfig"
 899
 900 source "drivers/pcmcia/Kconfig"
 901
 902 source "drivers/pci/hotplug/Kconfig"
 903
 904 endmenu
 905
 906 menu "Executable file formats"
 907
 908 source "fs/Kconfig.binfmt"
 909
 910 endmenu
 911
 912 menu "Power management options (EXPERIMENTAL)"
 913 depends on EXPERIMENTAL && SYS_SUPPORTS_PM
 914
 915 config ARCH_SUSPEND_POSSIBLE
 916         def_bool y
 917         depends on !SMP
 918
 919 source kernel/power/Kconfig
 920
 921 endmenu
 922
 923 source "net/Kconfig"
 924
 925 source "drivers/Kconfig"
 926
 927 source "fs/Kconfig"
 928
 929 source "arch/sh/Kconfig.debug"
 930
 931 source "security/Kconfig"
 932
 933 source "crypto/Kconfig"
 934
 935 source "lib/Kconfig"