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         bool
  10         default y
  11         select EMBEDDED
  12         help
  13           The SuperH is a RISC processor targeted for use in embedded systems
  14           and consumer electronics; it was also used in the Sega Dreamcast
  15           gaming console.  The SuperH port has a home page at
  16           <http://www.linux-sh.org/>.
  17
  18 config RWSEM_GENERIC_SPINLOCK
  19         bool
  20         default y
  21
  22 config RWSEM_XCHGADD_ALGORITHM
  23         bool
  24
  25 config GENERIC_BUG
  26         def_bool y
  27         depends on BUG
  28
  29 config GENERIC_FIND_NEXT_BIT
  30         bool
  31         default y
  32
  33 config GENERIC_HWEIGHT
  34         bool
  35         default y
  36
  37 config GENERIC_HARDIRQS
  38         bool
  39         default y
  40
  41 config GENERIC_IRQ_PROBE
  42         bool
  43         default y
  44
  45 config GENERIC_CALIBRATE_DELAY
  46         bool
  47         default y
  48
  49 config GENERIC_IOMAP
  50         bool
  51
  52 config GENERIC_TIME
  53         def_bool n
  54
  55 config GENERIC_CLOCKEVENTS
  56         def_bool n
  57
  58 config SYS_SUPPORTS_APM_EMULATION
  59         bool
  60
  61 config ARCH_MAY_HAVE_PC_FDC
  62         bool
  63
  64 config STACKTRACE_SUPPORT
  65         bool
  66         default y
  67
  68 config LOCKDEP_SUPPORT
  69         bool
  70         default y
  71
  72 config ARCH_HAS_ILOG2_U32
  73         bool
  74         default n
  75
  76 config ARCH_HAS_ILOG2_U64
  77         bool
  78         default n
  79
  80 source "init/Kconfig"
  81
  82 menu "System type"
  83
  84 config SOLUTION_ENGINE
  85         bool
  86
  87 choice
  88         prompt "SuperH system type"
  89         default SH_UNKNOWN
  90
  91 config SH_SOLUTION_ENGINE
  92         bool "SolutionEngine"
  93         select SOLUTION_ENGINE
  94         help
  95           Select SolutionEngine if configuring for a Hitachi SH7709
  96           or SH7750 evaluation board.
  97
  98 config SH_7722_SOLUTION_ENGINE
  99         bool "SolutionEngine7722"
 100         select SOLUTION_ENGINE
 101         select CPU_SUBTYPE_SH7722
 102         help
 103           Select 7722 SolutionEngine if configuring for a Hitachi SH772
 104           evaluation board.
 105
 106 config SH_7751_SOLUTION_ENGINE
 107         bool "SolutionEngine7751"
 108         select SOLUTION_ENGINE
 109         select CPU_SUBTYPE_SH7751
 110         help
 111           Select 7751 SolutionEngine if configuring for a Hitachi SH7751
 112           evaluation board.
 113
 114 config SH_7780_SOLUTION_ENGINE
 115         bool "SolutionEngine7780"
 116         select SOLUTION_ENGINE
 117         select CPU_SUBTYPE_SH7780
 118         help
 119           Select 7780 SolutionEngine if configuring for a Renesas SH7780
 120           evaluation board.
 121
 122 config SH_7300_SOLUTION_ENGINE
 123         bool "SolutionEngine7300"
 124         select SOLUTION_ENGINE
 125         select CPU_SUBTYPE_SH7300
 126         help
 127           Select 7300 SolutionEngine if configuring for a Hitachi
 128           SH7300(SH-Mobile V) evaluation board.
 129
 130 config SH_7343_SOLUTION_ENGINE
 131         bool "SolutionEngine7343"
 132         select SOLUTION_ENGINE
 133         select CPU_SUBTYPE_SH7343
 134         help
 135           Select 7343 SolutionEngine if configuring for a Hitachi
 136           SH7343 (SH-Mobile 3AS) evaluation board.
 137
 138 config SH_73180_SOLUTION_ENGINE
 139        bool "SolutionEngine73180"
 140         select SOLUTION_ENGINE
 141         select CPU_SUBTYPE_SH73180
 142         help
 143           Select 73180 SolutionEngine if configuring for a Hitachi
 144           SH73180(SH-Mobile 3) evaluation board.
 145
 146 config SH_7751_SYSTEMH
 147         bool "SystemH7751R"
 148         select CPU_SUBTYPE_SH7751R
 149         help
 150           Select SystemH if you are configuring for a Renesas SystemH
 151           7751R evaluation board.
 152
 153 config SH_HP6XX
 154         bool "HP6XX"
 155         select SYS_SUPPORTS_APM_EMULATION
 156         help
 157           Select HP6XX if configuring for a HP jornada HP6xx.
 158           More information (hardware only) at
 159           <http://www.hp.com/jornada/>.
 160
 161 config SH_SATURN
 162         bool "Saturn"
 163         select CPU_SUBTYPE_SH7604
 164         help
 165           Select Saturn if configuring for a SEGA Saturn.
 166
 167 config SH_DREAMCAST
 168         bool "Dreamcast"
 169         select CPU_SUBTYPE_SH7091
 170         help
 171           Select Dreamcast if configuring for a SEGA Dreamcast.
 172           More information at
 173           <http://www.m17n.org/linux-sh/dreamcast/>.  There is a
 174           Dreamcast project is at <http://linuxdc.sourceforge.net/>.
 175
 176 config SH_MPC1211
 177         bool "Interface MPC1211"
 178         help
 179           CTP/PCI-SH02 is a CPU module computer that is produced
 180           by Interface Corporation.
 181           More information at <http://www.interface.co.jp>
 182
 183 config SH_SH03
 184         bool "Interface CTP/PCI-SH03"
 185         help
 186           CTP/PCI-SH03 is a CPU module computer that is produced
 187           by Interface Corporation.
 188           More information at <http://www.interface.co.jp>
 189
 190 config SH_SECUREEDGE5410
 191         bool "SecureEdge5410"
 192         select CPU_SUBTYPE_SH7751R
 193         help
 194           Select SecureEdge5410 if configuring for a SnapGear SH board.
 195           This includes both the OEM SecureEdge products as well as the
 196           SME product line.
 197
 198 config SH_HS7751RVOIP
 199         bool "HS7751RVOIP"
 200         select CPU_SUBTYPE_SH7751R
 201         help
 202           Select HS7751RVOIP if configuring for a Renesas Technology
 203           Sales VoIP board.
 204
 205 config SH_7710VOIPGW
 206         bool "SH7710-VOIP-GW"
 207         select CPU_SUBTYPE_SH7710
 208         help
 209           Select this option to build a kernel for the SH7710 based
 210           VOIP GW.
 211
 212 config SH_RTS7751R2D
 213         bool "RTS7751R2D"
 214         select CPU_SUBTYPE_SH7751R
 215         help
 216           Select RTS7751R2D if configuring for a Renesas Technology
 217           Sales SH-Graphics board.
 218
 219 config SH_HIGHLANDER
 220         bool "Highlander"
 221
 222 config SH_EDOSK7705
 223         bool "EDOSK7705"
 224         select CPU_SUBTYPE_SH7705
 225
 226 config SH_SH4202_MICRODEV
 227         bool "SH4-202 MicroDev"
 228         select CPU_SUBTYPE_SH4_202
 229         help
 230           Select SH4-202 MicroDev if configuring for a SuperH MicroDev board
 231           with an SH4-202 CPU.
 232
 233 config SH_LANDISK
 234         bool "LANDISK"
 235         select CPU_SUBTYPE_SH7751R
 236         help
 237           I-O DATA DEVICE, INC. "LANDISK Series" support.
 238
 239 config SH_TITAN
 240         bool "TITAN"
 241         select CPU_SUBTYPE_SH7751R
 242         help
 243           Select Titan if you are configuring for a Nimble Microsystems
 244           NetEngine NP51R.
 245
 246 config SH_SHMIN
 247         bool "SHMIN"
 248         select CPU_SUBTYPE_SH7706
 249         help
 250           Select SHMIN if configuring for the SHMIN board.
 251
 252 config SH_7206_SOLUTION_ENGINE
 253         bool "SolutionEngine7206"
 254         select CPU_SUBTYPE_SH7206
 255         help
 256           Select 7206 SolutionEngine if configuring for a Hitachi SH7206
 257           evaluation board.
 258
 259 config SH_7619_SOLUTION_ENGINE
 260         bool "SolutionEngine7619"
 261         select CPU_SUBTYPE_SH7619
 262         help
 263           Select 7619 SolutionEngine if configuring for a Hitachi SH7619
 264           evaluation board.
 265
 266 config SH_LBOX_RE2
 267         bool "L-BOX RE2"
 268         select CPU_SUBTYPE_SH7751R
 269         help
 270           Select L-BOX RE2 if configuring for the NTT COMWARE L-BOX RE2.
 271
 272 config SH_UNKNOWN
 273         bool "BareCPU"
 274         help
 275           "Bare CPU" aka "unknown" means an SH-based system which is not one
 276           of the specific ones mentioned above, which means you need to enter
 277           all sorts of stuff like CONFIG_MEMORY_START because the config
 278           system doesn't already know what it is.  You get a machine vector
 279           without any platform-specific code in it, so things like the RTC may
 280           not work.
 281
 282           This option is for the early stages of porting to a new machine.
 283
 284 endchoice
 285
 286 source "arch/sh/boards/renesas/hs7751rvoip/Kconfig"
 287 source "arch/sh/boards/renesas/rts7751r2d/Kconfig"
 288 source "arch/sh/boards/renesas/r7780rp/Kconfig"
 289
 290 source "arch/sh/mm/Kconfig"
 291
 292 config CF_ENABLER
 293         bool "Compact Flash Enabler support"
 294         depends on SH_SOLUTION_ENGINE || SH_UNKNOWN || SH_SH03
 295         ---help---
 296           Compact Flash is a small, removable mass storage device introduced
 297           in 1994 originally as a PCMCIA device.  If you say `Y' here, you
 298           compile in support for Compact Flash devices directly connected to
 299           a SuperH processor.  A Compact Flash FAQ is available at
 300           <http://www.compactflash.org/faqs/faq.htm>.
 301
 302           If your board has "Directly Connected" CompactFlash at area 5 or 6,
 303           you may want to enable this option.  Then, you can use CF as
 304           primary IDE drive (only tested for SanDisk).
 305
 306           If in doubt, select 'N'.
 307
 308 choice
 309         prompt "Compact Flash Connection Area"
 310         depends on CF_ENABLER
 311         default CF_AREA6
 312
 313 config CF_AREA5
 314         bool "Area5"
 315         help
 316           If your board has "Directly Connected" CompactFlash, You should
 317           select the area where your CF is connected to.
 318
 319           - "Area5" if CompactFlash is connected to Area 5 (0x14000000)
 320           - "Area6" if it is connected to Area 6 (0x18000000)
 321
 322           "Area6" will work for most boards.
 323
 324 config CF_AREA6
 325         bool "Area6"
 326
 327 endchoice
 328
 329 config CF_BASE_ADDR
 330         hex
 331         depends on CF_ENABLER
 332         default "0xb8000000" if CF_AREA6
 333         default "0xb4000000" if CF_AREA5
 334
 335 menu "Processor features"
 336
 337 choice
 338         prompt "Endianess selection"
 339         default CPU_LITTLE_ENDIAN
 340         help
 341           Some SuperH machines can be configured for either little or big
 342           endian byte order. These modes require different kernels.
 343
 344 config CPU_LITTLE_ENDIAN
 345         bool "Little Endian"
 346
 347 config CPU_BIG_ENDIAN
 348         bool "Big Endian"
 349
 350 endchoice
 351
 352 config SH_FPU
 353         bool "FPU support"
 354         depends on !CPU_SH3
 355         default y
 356         help
 357           Selecting this option will enable support for SH processors that
 358           have FPU units (ie, SH77xx).
 359
 360           This option must be set in order to enable the FPU.
 361
 362 config SH_FPU_EMU
 363         bool "FPU emulation support"
 364         depends on !SH_FPU && EXPERIMENTAL
 365         default n
 366         help
 367           Selecting this option will enable support for software FPU emulation.
 368           Most SH-3 users will want to say Y here, whereas most SH-4 users will
 369           want to say N.
 370
 371 config SH_DSP
 372         bool "DSP support"
 373         default y if SH4AL_DSP || !CPU_SH4
 374         default n
 375         help
 376           Selecting this option will enable support for SH processors that
 377           have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP).
 378
 379           This option must be set in order to enable the DSP.
 380
 381 config SH_ADC
 382         bool "ADC support"
 383         depends on CPU_SH3
 384         default y
 385         help
 386           Selecting this option will allow the Linux kernel to use SH3 on-chip
 387           ADC module.
 388
 389           If unsure, say N.
 390
 391 config SH_STORE_QUEUES
 392         bool "Support for Store Queues"
 393         depends on CPU_SH4
 394         help
 395           Selecting this option will enable an in-kernel API for manipulating
 396           the store queues integrated in the SH-4 processors.
 397
 398 config SPECULATIVE_EXECUTION
 399         bool "Speculative subroutine return"
 400         depends on CPU_SUBTYPE_SH7780 && EXPERIMENTAL
 401         help
 402           This enables support for a speculative instruction fetch for
 403           subroutine return. There are various pitfalls associated with
 404           this, as outlined in the SH7780 hardware manual.
 405
 406           If unsure, say N.
 407
 408 config CPU_HAS_INTEVT
 409         bool
 410
 411 config CPU_HAS_PINT_IRQ
 412         bool
 413
 414 config CPU_HAS_MASKREG_IRQ
 415         bool
 416
 417 config CPU_HAS_INTC2_IRQ
 418         bool
 419
 420 config CPU_HAS_IPR_IRQ
 421         bool
 422
 423 config CPU_HAS_SR_RB
 424         bool "CPU has SR.RB"
 425         depends on CPU_SH3 || CPU_SH4
 426         default y
 427         help
 428           This will enable the use of SR.RB register bank usage. Processors
 429           that are lacking this bit must have another method in place for
 430           accomplishing what is taken care of by the banked registers.
 431
 432           See <file:Documentation/sh/register-banks.txt> for further
 433           information on SR.RB and register banking in the kernel in general.
 434
 435 config CPU_HAS_PTEA
 436         bool
 437
 438 endmenu
 439
 440 menu "Timer and clock configuration"
 441
 442 config SH_TMU
 443         bool "TMU timer support"
 444         depends on CPU_SH3 || CPU_SH4
 445         select GENERIC_TIME
 446         select GENERIC_CLOCKEVENTS
 447         default y
 448         help
 449           This enables the use of the TMU as the system timer.
 450
 451 config SH_CMT
 452         bool "CMT timer support"
 453         depends on CPU_SH2
 454         default y
 455         help
 456           This enables the use of the CMT as the system timer.
 457
 458 config SH_MTU2
 459         bool "MTU2 timer support"
 460         depends on CPU_SH2A
 461         default n
 462         help
 463           This enables the use of the MTU2 as the system timer.
 464
 465 config SH_TIMER_IRQ
 466         int
 467         default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785
 468         default "86" if CPU_SUBTYPE_SH7619
 469         default "140" if CPU_SUBTYPE_SH7206
 470         default "16"
 471
 472 config SH_PCLK_FREQ
 473         int "Peripheral clock frequency (in Hz)"
 474         default "27000000" if CPU_SUBTYPE_SH73180 || CPU_SUBTYPE_SH7343
 475         default "31250000" if CPU_SUBTYPE_SH7619
 476         default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || \
 477                               CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
 478                               CPU_SUBTYPE_SH7206
 479         default "50000000" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7780 || \
 480                               CPU_SUBTYPE_SH7785
 481         default "60000000" if CPU_SUBTYPE_SH7751
 482         default "66000000" if CPU_SUBTYPE_SH4_202
 483         help
 484           This option is used to specify the peripheral clock frequency.
 485           This is necessary for determining the reference clock value on
 486           platforms lacking an RTC.
 487
 488 config SH_CLK_MD
 489         int "CPU Mode Pin Setting"
 490         default 0
 491         depends on CPU_SUBTYPE_SH7619 || CPU_SUBTYPE_SH7206
 492         help
 493           MD2 - MD0 pin setting.
 494
 495 source "kernel/time/Kconfig"
 496
 497 endmenu
 498
 499 menu "CPU Frequency scaling"
 500
 501 source "drivers/cpufreq/Kconfig"
 502
 503 config SH_CPU_FREQ
 504         tristate "SuperH CPU Frequency driver"
 505         depends on CPU_FREQ
 506         select CPU_FREQ_TABLE
 507         help
 508           This adds the cpufreq driver for SuperH. At present, only
 509           the SH-4 is supported.
 510
 511           For details, take a look at <file:Documentation/cpu-freq>.
 512
 513           If unsure, say N.
 514
 515 endmenu
 516
 517 source "arch/sh/drivers/Kconfig"
 518
 519 endmenu
 520
 521 config ISA_DMA_API
 522         bool
 523         depends on SH_MPC1211
 524         default y
 525
 526 menu "Kernel features"
 527
 528 source kernel/Kconfig.hz
 529
 530 config KEXEC
 531         bool "kexec system call (EXPERIMENTAL)"
 532         depends on 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 independent 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 similarity 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 CRASH_DUMP
 548         bool "kernel crash dumps (EXPERIMENTAL)"
 549         depends on EXPERIMENTAL
 550         help
 551           Generate crash dump after being started by kexec.
 552           This should be normally only set in special crash dump kernels
 553           which are loaded in the main kernel with kexec-tools into
 554           a specially reserved region and then later executed after
 555           a crash by kdump/kexec. The crash dump kernel must be compiled
 556           to a memory address not used by the main kernel using
 557           MEMORY_START.
 558
 559           For more details see Documentation/kdump/kdump.txt
 560
 561 config SMP
 562         bool "Symmetric multi-processing support"
 563         ---help---
 564           This enables support for systems with more than one CPU. If you have
 565           a system with only one CPU, like most personal computers, say N. If
 566           you have a system with more than one CPU, say Y.
 567
 568           If you say N here, the kernel will run on single and multiprocessor
 569           machines, but will use only one CPU of a multiprocessor machine. If
 570           you say Y here, the kernel will run on many, but not all,
 571           singleprocessor machines. On a singleprocessor machine, the kernel
 572           will run faster if you say N here.
 573
 574           People using multiprocessor machines who say Y here should also say
 575           Y to "Enhanced Real Time Clock Support", below.
 576
 577           See also the <file:Documentation/smp.txt>,
 578           <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available
 579           at <http://www.tldp.org/docs.html#howto>.
 580
 581           If you don't know what to do here, say N.
 582
 583 config NR_CPUS
 584         int "Maximum number of CPUs (2-32)"
 585         range 2 32
 586         depends on SMP
 587         default "2"
 588         help
 589           This allows you to specify the maximum number of CPUs which this
 590           kernel will support.  The maximum supported value is 32 and the
 591           minimum value which makes sense is 2.
 592
 593           This is purely to save memory - each supported CPU adds
 594           approximately eight kilobytes to the kernel image.
 595
 596 source "kernel/Kconfig.preempt"
 597
 598 config NODES_SHIFT
 599         int
 600         default "1"
 601         depends on NEED_MULTIPLE_NODES
 602
 603 endmenu
 604
 605 menu "Boot options"
 606
 607 config ZERO_PAGE_OFFSET
 608         hex "Zero page offset"
 609         default "0x00004000" if SH_MPC1211 || SH_SH03
 610         default "0x00010000" if PAGE_SIZE_64KB
 611         default "0x00002000" if PAGE_SIZE_8KB
 612         default "0x00001000"
 613         help
 614           This sets the default offset of zero page.
 615
 616 config BOOT_LINK_OFFSET
 617         hex "Link address offset for booting"
 618         default "0x00800000"
 619         help
 620           This option allows you to set the link address offset of the zImage.
 621           This can be useful if you are on a board which has a small amount of
 622           memory.
 623
 624 config UBC_WAKEUP
 625         bool "Wakeup UBC on startup"
 626         help
 627           Selecting this option will wakeup the User Break Controller (UBC) on
 628           startup. Although the UBC is left in an awake state when the processor
 629           comes up, some boot loaders misbehave by putting the UBC to sleep in a
 630           power saving state, which causes issues with things like ptrace().
 631
 632           If unsure, say N.
 633
 634 config CMDLINE_BOOL
 635         bool "Default bootloader kernel arguments"
 636
 637 config CMDLINE
 638         string "Initial kernel command string"
 639         depends on CMDLINE_BOOL
 640         default "console=ttySC1,115200"
 641
 642 endmenu
 643
 644 menu "Bus options"
 645
 646 # Even on SuperH devices which don't have an ISA bus,
 647 # this variable helps the PCMCIA modules handle
 648 # IRQ requesting properly -- Greg Banks.
 649 #
 650 # Though we're generally not interested in it when
 651 # we're not using PCMCIA, so we make it dependent on
 652 # PCMCIA outright. -- PFM.
 653 config ISA
 654         bool
 655         default y if PCMCIA
 656         help
 657           Find out whether you have ISA slots on your motherboard.  ISA is the
 658           name of a bus system, i.e. the way the CPU talks to the other stuff
 659           inside your box.  Other bus systems are PCI, EISA, MicroChannel
 660           (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
 661           newer boards don't support it.  If you have ISA, say Y, otherwise N.
 662
 663 config EISA
 664         bool
 665         ---help---
 666           The Extended Industry Standard Architecture (EISA) bus was
 667           developed as an open alternative to the IBM MicroChannel bus.
 668
 669           The EISA bus provided some of the features of the IBM MicroChannel
 670           bus while maintaining backward compatibility with cards made for
 671           the older ISA bus.  The EISA bus saw limited use between 1988 and
 672           1995 when it was made obsolete by the PCI bus.
 673
 674           Say Y here if you are building a kernel for an EISA-based machine.
 675
 676           Otherwise, say N.
 677
 678 config MCA
 679         bool
 680         help
 681           MicroChannel Architecture is found in some IBM PS/2 machines and
 682           laptops.  It is a bus system similar to PCI or ISA. See
 683           <file:Documentation/mca.txt> (and especially the web page given
 684           there) before attempting to build an MCA bus kernel.
 685
 686 config SBUS
 687         bool
 688
 689 config SUPERHYWAY
 690         tristate "SuperHyway Bus support"
 691         depends on CPU_SUBTYPE_SH4_202
 692
 693 source "arch/sh/drivers/pci/Kconfig"
 694
 695 source "drivers/pci/Kconfig"
 696
 697 source "drivers/pcmcia/Kconfig"
 698
 699 source "drivers/pci/hotplug/Kconfig"
 700
 701 endmenu
 702
 703 menu "Executable file formats"
 704
 705 source "fs/Kconfig.binfmt"
 706
 707 endmenu
 708
 709 menu "Power management options (EXPERIMENTAL)"
 710 depends on EXPERIMENTAL
 711
 712 source kernel/power/Kconfig
 713
 714 endmenu
 715
 716 source "net/Kconfig"
 717
 718 source "drivers/Kconfig"
 719
 720 source "fs/Kconfig"
 721
 722 source "arch/sh/oprofile/Kconfig"
 723
 724 source "arch/sh/Kconfig.debug"
 725
 726 source "security/Kconfig"
 727
 728 source "crypto/Kconfig"
 729
 730 source "lib/Kconfig"