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_CLK
  12         select HAVE_IDE
  13         select HAVE_OPROFILE
  14         help
  15           The SuperH is a RISC processor targeted for use in embedded systems
  16           and consumer electronics; it was also used in the Sega Dreamcast
  17           gaming console.  The SuperH port has a home page at
  18           <http://www.linux-sh.org/>.
  19
  20 config SUPERH32
  21         def_bool !SUPERH64
  22
  23 config SUPERH64
  24         def_bool y if CPU_SH5
  25
  26 config ARCH_DEFCONFIG
  27         string
  28         default "arch/sh/configs/shx3_defconfig" if SUPERH32
  29         default "arch/sh/configs/cayman_defconfig" if SUPERH64
  30
  31 config RWSEM_GENERIC_SPINLOCK
  32         def_bool y
  33
  34 config RWSEM_XCHGADD_ALGORITHM
  35         bool
  36
  37 config GENERIC_BUG
  38         def_bool y
  39         depends on BUG && SUPERH32
  40
  41 config GENERIC_FIND_NEXT_BIT
  42         def_bool y
  43
  44 config GENERIC_HWEIGHT
  45         def_bool y
  46
  47 config GENERIC_HARDIRQS
  48         def_bool y
  49
  50 config GENERIC_IRQ_PROBE
  51         def_bool y
  52
  53 config GENERIC_CALIBRATE_DELAY
  54         def_bool y
  55
  56 config GENERIC_IOMAP
  57         bool
  58
  59 config GENERIC_TIME
  60         def_bool n
  61
  62 config GENERIC_CLOCKEVENTS
  63         def_bool n
  64
  65 config SYS_SUPPORTS_PM
  66         bool
  67
  68 config SYS_SUPPORTS_APM_EMULATION
  69         bool
  70         select SYS_SUPPORTS_PM
  71
  72 config SYS_SUPPORTS_SMP
  73         bool
  74
  75 config SYS_SUPPORTS_NUMA
  76         bool
  77
  78 config SYS_SUPPORTS_PCI
  79         bool
  80
  81 config STACKTRACE_SUPPORT
  82         def_bool y
  83
  84 config LOCKDEP_SUPPORT
  85         def_bool y
  86
  87 config ARCH_HAS_ILOG2_U32
  88         def_bool n
  89
  90 config ARCH_HAS_ILOG2_U64
  91         def_bool n
  92
  93 config ARCH_NO_VIRT_TO_BUS
  94         def_bool y
  95
  96 config ARCH_SUPPORTS_AOUT
  97         def_bool y
  98
  99 config IO_TRAPPED
 100         bool
 101
 102 source "init/Kconfig"
 103
 104 menu "System type"
 105
 106 #
 107 # Processor families
 108 #
 109 config CPU_SH2
 110         bool
 111
 112 config CPU_SH2A
 113         bool
 114         select CPU_SH2
 115
 116 config CPU_SH3
 117         bool
 118         select CPU_HAS_INTEVT
 119         select CPU_HAS_SR_RB
 120
 121 config CPU_SH4
 122         bool
 123         select CPU_HAS_INTEVT
 124         select CPU_HAS_SR_RB
 125         select CPU_HAS_PTEA if !CPU_SH4A || CPU_SHX2
 126         select CPU_HAS_FPU if !CPU_SH4AL_DSP
 127
 128 config CPU_SH4A
 129         bool
 130         select CPU_SH4
 131
 132 config CPU_SH4AL_DSP
 133         bool
 134         select CPU_SH4A
 135         select CPU_HAS_DSP
 136
 137 config CPU_SH5
 138         bool
 139         select CPU_HAS_FPU
 140
 141 config CPU_SHX2
 142         bool
 143
 144 config CPU_SHX3
 145         bool
 146
 147 choice
 148         prompt "Processor sub-type selection"
 149
 150 #
 151 # Processor subtypes
 152 #
 153
 154 # SH-2 Processor Support
 155
 156 config CPU_SUBTYPE_SH7619
 157         bool "Support SH7619 processor"
 158         select CPU_SH2
 159
 160 # SH-2A Processor Support
 161
 162 config CPU_SUBTYPE_SH7203
 163         bool "Support SH7203 processor"
 164         select CPU_SH2A
 165         select CPU_HAS_FPU
 166
 167 config CPU_SUBTYPE_SH7206
 168         bool "Support SH7206 processor"
 169         select CPU_SH2A
 170
 171 config CPU_SUBTYPE_SH7263
 172         bool "Support SH7263 processor"
 173         select CPU_SH2A
 174         select CPU_HAS_FPU
 175
 176 config CPU_SUBTYPE_MXG
 177         bool "Support MX-G processor"
 178         select CPU_SH2A
 179         help
 180           Select MX-G if running on an R8A03022BG part.
 181
 182 # SH-3 Processor Support
 183
 184 config CPU_SUBTYPE_SH7705
 185         bool "Support SH7705 processor"
 186         select CPU_SH3
 187
 188 config CPU_SUBTYPE_SH7706
 189         bool "Support SH7706 processor"
 190         select CPU_SH3
 191         help
 192           Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
 193
 194 config CPU_SUBTYPE_SH7707
 195         bool "Support SH7707 processor"
 196         select CPU_SH3
 197         help
 198           Select SH7707 if you have a  60 Mhz SH-3 HD6417707 CPU.
 199
 200 config CPU_SUBTYPE_SH7708
 201         bool "Support SH7708 processor"
 202         select CPU_SH3
 203         help
 204           Select SH7708 if you have a  60 Mhz SH-3 HD6417708S or
 205           if you have a 100 Mhz SH-3 HD6417708R CPU.
 206
 207 config CPU_SUBTYPE_SH7709
 208         bool "Support SH7709 processor"
 209         select CPU_SH3
 210         help
 211           Select SH7709 if you have a  80 Mhz SH-3 HD6417709 CPU.
 212
 213 config CPU_SUBTYPE_SH7710
 214         bool "Support SH7710 processor"
 215         select CPU_SH3
 216         select CPU_HAS_DSP
 217         help
 218           Select SH7710 if you have a SH3-DSP SH7710 CPU.
 219
 220 config CPU_SUBTYPE_SH7712
 221         bool "Support SH7712 processor"
 222         select CPU_SH3
 223         select CPU_HAS_DSP
 224         help
 225           Select SH7712 if you have a SH3-DSP SH7712 CPU.
 226
 227 config CPU_SUBTYPE_SH7720
 228         bool "Support SH7720 processor"
 229         select CPU_SH3
 230         select CPU_HAS_DSP
 231         help
 232           Select SH7720 if you have a SH3-DSP SH7720 CPU.
 233
 234 config CPU_SUBTYPE_SH7721
 235         bool "Support SH7721 processor"
 236         select CPU_SH3
 237         select CPU_HAS_DSP
 238         help
 239           Select SH7721 if you have a SH3-DSP SH7721 CPU.
 240
 241 # SH-4 Processor Support
 242
 243 config CPU_SUBTYPE_SH7750
 244         bool "Support SH7750 processor"
 245         select CPU_SH4
 246         help
 247           Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
 248
 249 config CPU_SUBTYPE_SH7091
 250         bool "Support SH7091 processor"
 251         select CPU_SH4
 252         help
 253           Select SH7091 if you have an SH-4 based Sega device (such as
 254           the Dreamcast, Naomi, and Naomi 2).
 255
 256 config CPU_SUBTYPE_SH7750R
 257         bool "Support SH7750R processor"
 258         select CPU_SH4
 259
 260 config CPU_SUBTYPE_SH7750S
 261         bool "Support SH7750S processor"
 262         select CPU_SH4
 263
 264 config CPU_SUBTYPE_SH7751
 265         bool "Support SH7751 processor"
 266         select CPU_SH4
 267         help
 268           Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
 269           or if you have a HD6417751R CPU.
 270
 271 config CPU_SUBTYPE_SH7751R
 272         bool "Support SH7751R processor"
 273         select CPU_SH4
 274
 275 config CPU_SUBTYPE_SH7760
 276         bool "Support SH7760 processor"
 277         select CPU_SH4
 278
 279 config CPU_SUBTYPE_SH4_202
 280         bool "Support SH4-202 processor"
 281         select CPU_SH4
 282
 283 # SH-4A Processor Support
 284
 285 config CPU_SUBTYPE_SH7723
 286         bool "Support SH7723 processor"
 287         select CPU_SH4A
 288         select CPU_SHX2
 289         select ARCH_SPARSEMEM_ENABLE
 290         help
 291           Select SH7723 if you have an SH-MobileR2 CPU.
 292
 293 config CPU_SUBTYPE_SH7763
 294         bool "Support SH7763 processor"
 295         select CPU_SH4A
 296         help
 297           Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
 298
 299 config CPU_SUBTYPE_SH7770
 300         bool "Support SH7770 processor"
 301         select CPU_SH4A
 302
 303 config CPU_SUBTYPE_SH7780
 304         bool "Support SH7780 processor"
 305         select CPU_SH4A
 306
 307 config CPU_SUBTYPE_SH7785
 308         bool "Support SH7785 processor"
 309         select CPU_SH4A
 310         select CPU_SHX2
 311         select ARCH_SPARSEMEM_ENABLE
 312         select SYS_SUPPORTS_NUMA
 313
 314 config CPU_SUBTYPE_SHX3
 315         bool "Support SH-X3 processor"
 316         select CPU_SH4A
 317         select CPU_SHX3
 318         select ARCH_SPARSEMEM_ENABLE
 319         select SYS_SUPPORTS_NUMA
 320         select SYS_SUPPORTS_SMP
 321
 322 # SH4AL-DSP Processor Support
 323
 324 config CPU_SUBTYPE_SH7343
 325         bool "Support SH7343 processor"
 326         select CPU_SH4AL_DSP
 327
 328 config CPU_SUBTYPE_SH7722
 329         bool "Support SH7722 processor"
 330         select CPU_SH4AL_DSP
 331         select CPU_SHX2
 332         select ARCH_SPARSEMEM_ENABLE
 333         select SYS_SUPPORTS_NUMA
 334
 335 config CPU_SUBTYPE_SH7366
 336         bool "Support SH7366 processor"
 337         select CPU_SH4AL_DSP
 338         select CPU_SHX2
 339         select ARCH_SPARSEMEM_ENABLE
 340         select SYS_SUPPORTS_NUMA
 341
 342 # SH-5 Processor Support
 343
 344 config CPU_SUBTYPE_SH5_101
 345         bool "Support SH5-101 processor"
 346         select CPU_SH5
 347
 348 config CPU_SUBTYPE_SH5_103
 349         bool "Support SH5-103 processor"
 350         select CPU_SH5
 351
 352 endchoice
 353
 354 source "arch/sh/mm/Kconfig"
 355 source "arch/sh/Kconfig.cpu"
 356
 357 menu "Board support"
 358
 359 config SOLUTION_ENGINE
 360         bool
 361
 362 config SH_SOLUTION_ENGINE
 363         bool "SolutionEngine"
 364         select SOLUTION_ENGINE
 365         select CPU_HAS_IPR_IRQ
 366         depends on CPU_SUBTYPE_SH7705 || CPU_SUBTYPE_SH7709 || CPU_SUBTYPE_SH7710 || \
 367           CPU_SUBTYPE_SH7712 || CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7750S || \
 368           CPU_SUBTYPE_SH7750R
 369         help
 370           Select SolutionEngine if configuring for a Hitachi SH7705, SH7709,
 371           SH7710, SH7712, SH7750, SH7750S or SH7750R evaluation board.
 372
 373 config SH_7206_SOLUTION_ENGINE
 374         bool "SolutionEngine7206"
 375         select SOLUTION_ENGINE
 376         depends on CPU_SUBTYPE_SH7206
 377         help
 378           Select 7206 SolutionEngine if configuring for a Hitachi SH7206
 379           evaluation board.
 380
 381 config SH_7619_SOLUTION_ENGINE
 382         bool "SolutionEngine7619"
 383         select SOLUTION_ENGINE
 384         depends on CPU_SUBTYPE_SH7619
 385         help
 386           Select 7619 SolutionEngine if configuring for a Hitachi SH7619
 387           evaluation board.
 388
 389 config SH_7721_SOLUTION_ENGINE
 390         bool "SolutionEngine7721"
 391         select SOLUTION_ENGINE
 392         depends on CPU_SUBTYPE_SH7721
 393         help
 394           Select 7721 SolutionEngine if configuring for a Hitachi SH7721
 395           evaluation board.
 396
 397 config SH_7722_SOLUTION_ENGINE
 398         bool "SolutionEngine7722"
 399         select SOLUTION_ENGINE
 400         depends on CPU_SUBTYPE_SH7722
 401         help
 402           Select 7722 SolutionEngine if configuring for a Hitachi SH772
 403           evaluation board.
 404
 405 config SH_7751_SOLUTION_ENGINE
 406         bool "SolutionEngine7751"
 407         select SOLUTION_ENGINE
 408         select CPU_HAS_IPR_IRQ
 409         depends on CPU_SUBTYPE_SH7751
 410         help
 411           Select 7751 SolutionEngine if configuring for a Hitachi SH7751
 412           evaluation board.
 413
 414 config SH_7780_SOLUTION_ENGINE
 415         bool "SolutionEngine7780"
 416         select SOLUTION_ENGINE
 417         select SYS_SUPPORTS_PCI
 418         depends on CPU_SUBTYPE_SH7780
 419         help
 420           Select 7780 SolutionEngine if configuring for a Renesas SH7780
 421           evaluation board.
 422
 423 config SH_7343_SOLUTION_ENGINE
 424         bool "SolutionEngine7343"
 425         select SOLUTION_ENGINE
 426         depends on CPU_SUBTYPE_SH7343
 427         help
 428           Select 7343 SolutionEngine if configuring for a Hitachi
 429           SH7343 (SH-Mobile 3AS) evaluation board.
 430
 431 config SH_7751_SYSTEMH
 432         bool "SystemH7751R"
 433         depends on CPU_SUBTYPE_SH7751R
 434         help
 435           Select SystemH if you are configuring for a Renesas SystemH
 436           7751R evaluation board.
 437
 438 config SH_HP6XX
 439         bool "HP6XX"
 440         select SYS_SUPPORTS_APM_EMULATION
 441         select HD6446X_SERIES
 442         depends on CPU_SUBTYPE_SH7709
 443         help
 444           Select HP6XX if configuring for a HP jornada HP6xx.
 445           More information (hardware only) at
 446           <http://www.hp.com/jornada/>.
 447
 448 config SH_DREAMCAST
 449         bool "Dreamcast"
 450         select SYS_SUPPORTS_PCI
 451         depends on CPU_SUBTYPE_SH7091
 452         help
 453           Select Dreamcast if configuring for a SEGA Dreamcast.
 454           More information at <http://www.linux-sh.org>
 455
 456 config SH_SH03
 457         bool "Interface CTP/PCI-SH03"
 458         depends on CPU_SUBTYPE_SH7751
 459         select CPU_HAS_IPR_IRQ
 460         select SYS_SUPPORTS_PCI
 461         help
 462           CTP/PCI-SH03 is a CPU module computer that is produced
 463           by Interface Corporation.
 464           More information at <http://www.interface.co.jp>
 465
 466 config SH_SECUREEDGE5410
 467         bool "SecureEdge5410"
 468         depends on CPU_SUBTYPE_SH7751R
 469         select CPU_HAS_IPR_IRQ
 470         select SYS_SUPPORTS_PCI
 471         help
 472           Select SecureEdge5410 if configuring for a SnapGear SH board.
 473           This includes both the OEM SecureEdge products as well as the
 474           SME product line.
 475
 476 config SH_RTS7751R2D
 477         bool "RTS7751R2D"
 478         depends on CPU_SUBTYPE_SH7751R
 479         select SYS_SUPPORTS_PCI
 480         select IO_TRAPPED
 481         help
 482           Select RTS7751R2D if configuring for a Renesas Technology
 483           Sales SH-Graphics board.
 484
 485 config SH_RSK7203
 486         bool "RSK7203"
 487         depends on CPU_SUBTYPE_SH7203
 488
 489 config SH_SDK7780
 490         bool "SDK7780R3"
 491         depends on CPU_SUBTYPE_SH7780
 492         select SYS_SUPPORTS_PCI
 493         help
 494           Select SDK7780 if configuring for a Renesas SH7780 SDK7780R3
 495           evaluation board.
 496
 497 config SH_HIGHLANDER
 498         bool "Highlander"
 499         depends on CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
 500         select SYS_SUPPORTS_PCI
 501         select IO_TRAPPED
 502
 503 config SH_SH7785LCR
 504         bool "SH7785LCR"
 505         depends on CPU_SUBTYPE_SH7785
 506         select SYS_SUPPORTS_PCI
 507         select IO_TRAPPED
 508
 509 config SH_SH7785LCR_29BIT_PHYSMAPS
 510         bool "SH7785LCR 29bit physmaps"
 511         depends on SH_SH7785LCR
 512         default y
 513         help
 514           This board has 2 physical memory maps. It can be changed with
 515           DIP switch(S2-5). If you set the DIP switch for S2-5 = ON,
 516           you can access all on-board device in 29bit address mode.
 517
 518 config SH_MIGOR
 519         bool "Migo-R"
 520         depends on CPU_SUBTYPE_SH7722
 521         help
 522           Select Migo-R if configuring for the SH7722 Migo-R platform
 523           by Renesas System Solutions Asia Pte. Ltd.
 524
 525 config SH_AP325RXA
 526         bool "AP-325RXA"
 527         depends on CPU_SUBTYPE_SH7723
 528         help
 529           Renesas "AP-325RXA" support.
 530           Compatible with ALGO SYSTEM CO.,LTD. "AP-320A"
 531
 532 config SH_SH7763RDP
 533         bool "SH7763RDP"
 534         depends on CPU_SUBTYPE_SH7763
 535         help
 536           Select SH7763RDP if configuring for a Renesas SH7763
 537           evaluation board.
 538
 539 config SH_EDOSK7705
 540         bool "EDOSK7705"
 541         depends on CPU_SUBTYPE_SH7705
 542
 543 config SH_SH4202_MICRODEV
 544         bool "SH4-202 MicroDev"
 545         depends on CPU_SUBTYPE_SH4_202
 546         help
 547           Select SH4-202 MicroDev if configuring for a SuperH MicroDev board
 548           with an SH4-202 CPU.
 549
 550 config SH_LANDISK
 551         bool "LANDISK"
 552         depends on CPU_SUBTYPE_SH7751R
 553         select SYS_SUPPORTS_PCI
 554         help
 555           I-O DATA DEVICE, INC. "LANDISK Series" support.
 556
 557 config SH_TITAN
 558         bool "TITAN"
 559         depends on CPU_SUBTYPE_SH7751R
 560         select CPU_HAS_IPR_IRQ
 561         select SYS_SUPPORTS_PCI
 562         help
 563           Select Titan if you are configuring for a Nimble Microsystems
 564           NetEngine NP51R.
 565
 566 config SH_SHMIN
 567         bool "SHMIN"
 568         depends on CPU_SUBTYPE_SH7706
 569         select CPU_HAS_IPR_IRQ
 570         help
 571           Select SHMIN if configuring for the SHMIN board.
 572
 573 config SH_LBOX_RE2
 574         bool "L-BOX RE2"
 575         depends on CPU_SUBTYPE_SH7751R
 576         select SYS_SUPPORTS_PCI
 577         help
 578           Select L-BOX RE2 if configuring for the NTT COMWARE L-BOX RE2.
 579
 580 config SH_X3PROTO
 581         bool "SH-X3 Prototype board"
 582         depends on CPU_SUBTYPE_SHX3
 583
 584 config SH_MAGIC_PANEL_R2
 585         bool "Magic Panel R2"
 586         depends on CPU_SUBTYPE_SH7720
 587         help
 588           Select Magic Panel R2 if configuring for Magic Panel R2.
 589
 590 config SH_CAYMAN
 591         bool "Hitachi Cayman"
 592         depends on CPU_SUBTYPE_SH5_101 || CPU_SUBTYPE_SH5_103
 593         select SYS_SUPPORTS_PCI
 594
 595 endmenu
 596
 597 source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
 598 source "arch/sh/boards/renesas/r7780rp/Kconfig"
 599 source "arch/sh/boards/renesas/sdk7780/Kconfig"
 600 source "arch/sh/boards/renesas/migor/Kconfig"
 601 source "arch/sh/boards/magicpanelr2/Kconfig"
 602
 603 menu "Timer and clock configuration"
 604
 605 config SH_TMU
 606         def_bool y
 607         prompt "TMU timer support"
 608         depends on CPU_SH3 || CPU_SH4
 609         select GENERIC_TIME
 610         select GENERIC_CLOCKEVENTS
 611         help
 612           This enables the use of the TMU as the system timer.
 613
 614 config SH_CMT
 615         def_bool y
 616         prompt "CMT timer support"
 617         depends on CPU_SH2 && !CPU_SUBTYPE_MXG
 618         help
 619           This enables the use of the CMT as the system timer.
 620
 621 config SH_MTU2
 622         def_bool n
 623         prompt "MTU2 timer support"
 624         depends on CPU_SH2A
 625         help
 626           This enables the use of the MTU2 as the system timer.
 627
 628 config SH_TIMER_IRQ
 629         int
 630         default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 || \
 631                         CPU_SUBTYPE_SH7763
 632         default "86" if CPU_SUBTYPE_SH7619
 633         default "140" if CPU_SUBTYPE_SH7206
 634         default "142" if CPU_SUBTYPE_SH7203
 635         default "238" if CPU_SUBTYPE_MXG
 636         default "16"
 637
 638 config SH_PCLK_FREQ
 639         int "Peripheral clock frequency (in Hz)"
 640         default "27000000" if CPU_SUBTYPE_SH7343
 641         default "31250000" if CPU_SUBTYPE_SH7619
 642         default "32000000" if CPU_SUBTYPE_SH7722
 643         default "33333333" if CPU_SUBTYPE_SH7770 || CPU_SUBTYPE_SH7723 || \
 644                               CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
 645                               CPU_SUBTYPE_SH7203 || CPU_SUBTYPE_SH7206 || \
 646                               CPU_SUBTYPE_SH7263 || CPU_SUBTYPE_MXG
 647         default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
 648         default "66000000" if CPU_SUBTYPE_SH4_202
 649         default "50000000"
 650         help
 651           This option is used to specify the peripheral clock frequency.
 652           This is necessary for determining the reference clock value on
 653           platforms lacking an RTC.
 654
 655 config SH_CLK_MD
 656         int "CPU Mode Pin Setting"
 657         depends on CPU_SH2
 658         default 6 if CPU_SUBTYPE_SH7206
 659         default 5 if CPU_SUBTYPE_SH7619
 660         default 0
 661         help
 662           MD2 - MD0 pin setting.
 663
 664 source "kernel/time/Kconfig"
 665
 666 endmenu
 667
 668 menu "CPU Frequency scaling"
 669
 670 source "drivers/cpufreq/Kconfig"
 671
 672 config SH_CPU_FREQ
 673         tristate "SuperH CPU Frequency driver"
 674         depends on CPU_FREQ
 675         select CPU_FREQ_TABLE
 676         help
 677           This adds the cpufreq driver for SuperH. At present, only
 678           the SH-4 is supported.
 679
 680           For details, take a look at <file:Documentation/cpu-freq>.
 681
 682           If unsure, say N.
 683
 684 endmenu
 685
 686 source "arch/sh/drivers/Kconfig"
 687
 688 endmenu
 689
 690 config ISA_DMA_API
 691         bool
 692
 693 menu "Kernel features"
 694
 695 source kernel/Kconfig.hz
 696
 697 config KEXEC
 698         bool "kexec system call (EXPERIMENTAL)"
 699         depends on SUPERH32 && EXPERIMENTAL
 700         help
 701           kexec is a system call that implements the ability to shutdown your
 702           current kernel, and to start another kernel.  It is like a reboot
 703           but it is independent of the system firmware.  And like a reboot
 704           you can start any kernel with it, not just Linux.
 705
 706           The name comes from the similarity to the exec system call.
 707
 708           It is an ongoing process to be certain the hardware in a machine
 709           is properly shutdown, so do not be surprised if this code does not
 710           initially work for you.  It may help to enable device hotplugging
 711           support.  As of this writing the exact hardware interface is
 712           strongly in flux, so no good recommendation can be made.
 713
 714 config CRASH_DUMP
 715         bool "kernel crash dumps (EXPERIMENTAL)"
 716         depends on SUPERH32 && EXPERIMENTAL
 717         help
 718           Generate crash dump after being started by kexec.
 719           This should be normally only set in special crash dump kernels
 720           which are loaded in the main kernel with kexec-tools into
 721           a specially reserved region and then later executed after
 722           a crash by kdump/kexec. The crash dump kernel must be compiled
 723           to a memory address not used by the main kernel using
 724           MEMORY_START.
 725
 726           For more details see Documentation/kdump/kdump.txt
 727
 728 config SMP
 729         bool "Symmetric multi-processing support"
 730         depends on SYS_SUPPORTS_SMP
 731         select USE_GENERIC_SMP_HELPERS
 732         ---help---
 733           This enables support for systems with more than one CPU. If you have
 734           a system with only one CPU, like most personal computers, say N. If
 735           you have a system with more than one CPU, say Y.
 736
 737           If you say N here, the kernel will run on single and multiprocessor
 738           machines, but will use only one CPU of a multiprocessor machine. If
 739           you say Y here, the kernel will run on many, but not all,
 740           singleprocessor machines. On a singleprocessor machine, the kernel
 741           will run faster if you say N here.
 742
 743           People using multiprocessor machines who say Y here should also say
 744           Y to "Enhanced Real Time Clock Support", below.
 745
 746           See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
 747           available at <http://www.tldp.org/docs.html#howto>.
 748
 749           If you don't know what to do here, say N.
 750
 751 config NR_CPUS
 752         int "Maximum number of CPUs (2-32)"
 753         range 2 32
 754         depends on SMP
 755         default "4" if CPU_SHX3
 756         default "2"
 757         help
 758           This allows you to specify the maximum number of CPUs which this
 759           kernel will support.  The maximum supported value is 32 and the
 760           minimum value which makes sense is 2.
 761
 762           This is purely to save memory - each supported CPU adds
 763           approximately eight kilobytes to the kernel image.
 764
 765 source "kernel/Kconfig.preempt"
 766
 767 config GUSA
 768         def_bool y
 769         depends on !SMP && SUPERH32
 770         help
 771           This enables support for gUSA (general UserSpace Atomicity).
 772           This is the default implementation for both UP and non-ll/sc
 773           CPUs, and is used by the libc, amongst others.
 774
 775           For additional information, design information can be found
 776           in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
 777
 778           This should only be disabled for special cases where alternate
 779           atomicity implementations exist.
 780
 781 config GUSA_RB
 782         bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
 783         depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
 784         help
 785           Enabling this option will allow the kernel to implement some
 786           atomic operations using a software implemention of load-locked/
 787           store-conditional (LLSC). On machines which do not have hardware
 788           LLSC, this should be more efficient than the other alternative of
 789           disabling insterrupts around the atomic sequence.
 790
 791 endmenu
 792
 793 menu "Boot options"
 794
 795 config ZERO_PAGE_OFFSET
 796         hex "Zero page offset"
 797         default "0x00004000" if SH_SH03
 798         default "0x00010000" if PAGE_SIZE_64KB
 799         default "0x00002000" if PAGE_SIZE_8KB
 800         default "0x00001000"
 801         help
 802           This sets the default offset of zero page.
 803
 804 config BOOT_LINK_OFFSET
 805         hex "Link address offset for booting"
 806         default "0x00800000"
 807         help
 808           This option allows you to set the link address offset of the zImage.
 809           This can be useful if you are on a board which has a small amount of
 810           memory.
 811
 812 config UBC_WAKEUP
 813         bool "Wakeup UBC on startup"
 814         depends on CPU_SH4 && !CPU_SH4A
 815         help
 816           Selecting this option will wakeup the User Break Controller (UBC) on
 817           startup. Although the UBC is left in an awake state when the processor
 818           comes up, some boot loaders misbehave by putting the UBC to sleep in a
 819           power saving state, which causes issues with things like ptrace().
 820
 821           If unsure, say N.
 822
 823 config CMDLINE_BOOL
 824         bool "Default bootloader kernel arguments"
 825
 826 config CMDLINE
 827         string "Initial kernel command string"
 828         depends on CMDLINE_BOOL
 829         default "console=ttySC1,115200"
 830
 831 endmenu
 832
 833 menu "Bus options"
 834
 835 # Even on SuperH devices which don't have an ISA bus,
 836 # this variable helps the PCMCIA modules handle
 837 # IRQ requesting properly -- Greg Banks.
 838 #
 839 # Though we're generally not interested in it when
 840 # we're not using PCMCIA, so we make it dependent on
 841 # PCMCIA outright. -- PFM.
 842 config ISA
 843         def_bool y
 844         depends on PCMCIA && HD6446X_SERIES
 845         help
 846           Find out whether you have ISA slots on your motherboard.  ISA is the
 847           name of a bus system, i.e. the way the CPU talks to the other stuff
 848           inside your box.  Other bus systems are PCI, EISA, MicroChannel
 849           (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
 850           newer boards don't support it.  If you have ISA, say Y, otherwise N.
 851
 852 config EISA
 853         bool
 854         ---help---
 855           The Extended Industry Standard Architecture (EISA) bus was
 856           developed as an open alternative to the IBM MicroChannel bus.
 857
 858           The EISA bus provided some of the features of the IBM MicroChannel
 859           bus while maintaining backward compatibility with cards made for
 860           the older ISA bus.  The EISA bus saw limited use between 1988 and
 861           1995 when it was made obsolete by the PCI bus.
 862
 863           Say Y here if you are building a kernel for an EISA-based machine.
 864
 865           Otherwise, say N.
 866
 867 config MCA
 868         bool
 869         help
 870           MicroChannel Architecture is found in some IBM PS/2 machines and
 871           laptops.  It is a bus system similar to PCI or ISA. See
 872           <file:Documentation/mca.txt> (and especially the web page given
 873           there) before attempting to build an MCA bus kernel.
 874
 875 config SBUS
 876         bool
 877
 878 config SUPERHYWAY
 879         tristate "SuperHyway Bus support"
 880         depends on CPU_SUBTYPE_SH4_202
 881
 882 config MAPLE
 883        bool "Maple Bus support"
 884        depends on SH_DREAMCAST
 885        help
 886          The Maple Bus is SEGA's serial communication bus for peripherals
 887          on the Dreamcast. Without this bus support you won't be able to
 888          get your Dreamcast keyboard etc to work, so most users
 889          probably want to say 'Y' here, unless you are only using the
 890          Dreamcast with a serial line terminal or a remote network
 891          connection.
 892
 893 config CF_ENABLER
 894         bool "Compact Flash Enabler support"
 895         depends on SOLUTION_ENGINE || SH_SH03
 896         ---help---
 897           Compact Flash is a small, removable mass storage device introduced
 898           in 1994 originally as a PCMCIA device.  If you say `Y' here, you
 899           compile in support for Compact Flash devices directly connected to
 900           a SuperH processor.  A Compact Flash FAQ is available at
 901           <http://www.compactflash.org/faqs/faq.htm>.
 902
 903           If your board has "Directly Connected" CompactFlash at area 5 or 6,
 904           you may want to enable this option.  Then, you can use CF as
 905           primary IDE drive (only tested for SanDisk).
 906
 907           If in doubt, select 'N'.
 908
 909 choice
 910         prompt "Compact Flash Connection Area"
 911         depends on CF_ENABLER
 912         default CF_AREA6
 913
 914 config CF_AREA5
 915         bool "Area5"
 916         help
 917           If your board has "Directly Connected" CompactFlash, You should
 918           select the area where your CF is connected to.
 919
 920           - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
 921           - "Area6" if it is connected to Area 6 (0x18000000)
 922
 923           "Area6" will work for most boards.
 924
 925 config CF_AREA6
 926         bool "Area6"
 927
 928 endchoice
 929
 930 config CF_BASE_ADDR
 931         hex
 932         depends on CF_ENABLER
 933         default "0xb8000000" if CF_AREA6
 934         default "0xb4000000" if CF_AREA5
 935
 936 source "arch/sh/drivers/pci/Kconfig"
 937
 938 source "drivers/pci/Kconfig"
 939
 940 source "drivers/pcmcia/Kconfig"
 941
 942 source "drivers/pci/hotplug/Kconfig"
 943
 944 endmenu
 945
 946 menu "Executable file formats"
 947
 948 source "fs/Kconfig.binfmt"
 949
 950 endmenu
 951
 952 menu "Power management options (EXPERIMENTAL)"
 953 depends on EXPERIMENTAL && SYS_SUPPORTS_PM
 954
 955 config ARCH_SUSPEND_POSSIBLE
 956         def_bool y
 957         depends on !SMP
 958
 959 source kernel/power/Kconfig
 960
 961 endmenu
 962
 963 source "net/Kconfig"
 964
 965 source "drivers/Kconfig"
 966
 967 source "fs/Kconfig"
 968
 969 source "arch/sh/Kconfig.debug"
 970
 971 source "security/Kconfig"
 972
 973 source "crypto/Kconfig"
 974
 975 source "lib/Kconfig"