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         select HAVE_GENERIC_DMA_COHERENT
  15         select HAVE_IOREMAP_PROT if MMU
  16         select HAVE_ARCH_TRACEHOOK
  17         select HAVE_DMA_API_DEBUG
  18         help
  19           The SuperH is a RISC processor targeted for use in embedded systems
  20           and consumer electronics; it was also used in the Sega Dreamcast
  21           gaming console.  The SuperH port has a home page at
  22           <http://www.linux-sh.org/>.
  23
  24 config SUPERH32
  25         def_bool ARCH = "sh"
  26         select HAVE_KPROBES
  27         select HAVE_KRETPROBES
  28         select HAVE_FUNCTION_TRACER
  29         select HAVE_FTRACE_MCOUNT_RECORD
  30         select HAVE_DYNAMIC_FTRACE
  31         select HAVE_ARCH_KGDB
  32         select ARCH_HIBERNATION_POSSIBLE if MMU
  33         select RTC_LIB
  34
  35 config SUPERH64
  36         def_bool ARCH = "sh64"
  37
  38 config ARCH_DEFCONFIG
  39         string
  40         default "arch/sh/configs/shx3_defconfig" if SUPERH32
  41         default "arch/sh/configs/cayman_defconfig" if SUPERH64
  42
  43 config RWSEM_GENERIC_SPINLOCK
  44         def_bool y
  45
  46 config RWSEM_XCHGADD_ALGORITHM
  47         bool
  48
  49 config GENERIC_BUG
  50         def_bool y
  51         depends on BUG && SUPERH32
  52
  53 config GENERIC_FIND_NEXT_BIT
  54         def_bool y
  55
  56 config GENERIC_HWEIGHT
  57         def_bool y
  58
  59 config GENERIC_HARDIRQS
  60         def_bool y
  61
  62 config GENERIC_HARDIRQS_NO__DO_IRQ
  63         def_bool y
  64
  65 config GENERIC_IRQ_PROBE
  66         def_bool y
  67
  68 config GENERIC_GPIO
  69         def_bool n
  70
  71 config GENERIC_CALIBRATE_DELAY
  72         bool
  73
  74 config GENERIC_IOMAP
  75         bool
  76
  77 config GENERIC_TIME
  78         def_bool y
  79
  80 config GENERIC_CLOCKEVENTS
  81         def_bool n
  82
  83 config GENERIC_CLOCKEVENTS_BROADCAST
  84         bool
  85
  86 config GENERIC_LOCKBREAK
  87         def_bool y
  88         depends on SMP && PREEMPT
  89
  90 config SYS_SUPPORTS_PM
  91         bool
  92         depends on !SMP
  93
  94 config ARCH_SUSPEND_POSSIBLE
  95         def_bool n
  96
  97 config ARCH_HIBERNATION_POSSIBLE
  98         def_bool n
  99
 100 config SYS_SUPPORTS_APM_EMULATION
 101         bool
 102         select ARCH_SUSPEND_POSSIBLE
 103
 104 config SYS_SUPPORTS_SMP
 105         bool
 106
 107 config SYS_SUPPORTS_NUMA
 108         bool
 109
 110 config SYS_SUPPORTS_PCI
 111         bool
 112
 113 config SYS_SUPPORTS_CMT
 114         bool
 115
 116 config SYS_SUPPORTS_MTU2
 117         bool
 118
 119 config STACKTRACE_SUPPORT
 120         def_bool y
 121
 122 config LOCKDEP_SUPPORT
 123         def_bool y
 124
 125 config HAVE_LATENCYTOP_SUPPORT
 126         def_bool y
 127         depends on !SMP
 128
 129 config ARCH_HAS_ILOG2_U32
 130         def_bool n
 131
 132 config ARCH_HAS_ILOG2_U64
 133         def_bool n
 134
 135 config ARCH_NO_VIRT_TO_BUS
 136         def_bool y
 137
 138 config ARCH_HAS_DEFAULT_IDLE
 139         def_bool y
 140
 141 config IO_TRAPPED
 142         bool
 143
 144 source "init/Kconfig"
 145
 146 source "kernel/Kconfig.freezer"
 147
 148 menu "System type"
 149
 150 #
 151 # Processor families
 152 #
 153 config CPU_SH2
 154         bool
 155
 156 config CPU_SH2A
 157         bool
 158         select CPU_SH2
 159
 160 config CPU_SH3
 161         bool
 162         select CPU_HAS_INTEVT
 163         select CPU_HAS_SR_RB
 164
 165 config CPU_SH4
 166         bool
 167         select CPU_HAS_INTEVT
 168         select CPU_HAS_SR_RB
 169         select CPU_HAS_PTEA if !CPU_SH4A || CPU_SHX2
 170         select CPU_HAS_FPU if !CPU_SH4AL_DSP
 171
 172 config CPU_SH4A
 173         bool
 174         select CPU_SH4
 175
 176 config CPU_SH4AL_DSP
 177         bool
 178         select CPU_SH4A
 179         select CPU_HAS_DSP
 180
 181 config CPU_SH5
 182         bool
 183         select CPU_HAS_FPU
 184
 185 config CPU_SHX2
 186         bool
 187
 188 config CPU_SHX3
 189         bool
 190
 191 config ARCH_SHMOBILE
 192         bool
 193         select ARCH_SUSPEND_POSSIBLE
 194
 195 if SUPERH32
 196
 197 choice
 198         prompt "Processor sub-type selection"
 199
 200 #
 201 # Processor subtypes
 202 #
 203
 204 # SH-2 Processor Support
 205
 206 config CPU_SUBTYPE_SH7619
 207         bool "Support SH7619 processor"
 208         select CPU_SH2
 209         select SYS_SUPPORTS_CMT
 210
 211 # SH-2A Processor Support
 212
 213 config CPU_SUBTYPE_SH7201
 214         bool "Support SH7201 processor"
 215         select CPU_SH2A
 216         select CPU_HAS_FPU
 217         select SYS_SUPPORTS_MTU2
 218
 219 config CPU_SUBTYPE_SH7203
 220         bool "Support SH7203 processor"
 221         select CPU_SH2A
 222         select CPU_HAS_FPU
 223         select SYS_SUPPORTS_CMT
 224         select SYS_SUPPORTS_MTU2
 225
 226 config CPU_SUBTYPE_SH7206
 227         bool "Support SH7206 processor"
 228         select CPU_SH2A
 229         select SYS_SUPPORTS_CMT
 230         select SYS_SUPPORTS_MTU2
 231
 232 config CPU_SUBTYPE_SH7263
 233         bool "Support SH7263 processor"
 234         select CPU_SH2A
 235         select CPU_HAS_FPU
 236         select SYS_SUPPORTS_CMT
 237         select SYS_SUPPORTS_MTU2
 238
 239 config CPU_SUBTYPE_MXG
 240         bool "Support MX-G processor"
 241         select CPU_SH2A
 242         select SYS_SUPPORTS_MTU2
 243         help
 244           Select MX-G if running on an R8A03022BG part.
 245
 246 # SH-3 Processor Support
 247
 248 config CPU_SUBTYPE_SH7705
 249         bool "Support SH7705 processor"
 250         select CPU_SH3
 251
 252 config CPU_SUBTYPE_SH7706
 253         bool "Support SH7706 processor"
 254         select CPU_SH3
 255         help
 256           Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
 257
 258 config CPU_SUBTYPE_SH7707
 259         bool "Support SH7707 processor"
 260         select CPU_SH3
 261         help
 262           Select SH7707 if you have a  60 Mhz SH-3 HD6417707 CPU.
 263
 264 config CPU_SUBTYPE_SH7708
 265         bool "Support SH7708 processor"
 266         select CPU_SH3
 267         help
 268           Select SH7708 if you have a  60 Mhz SH-3 HD6417708S or
 269           if you have a 100 Mhz SH-3 HD6417708R CPU.
 270
 271 config CPU_SUBTYPE_SH7709
 272         bool "Support SH7709 processor"
 273         select CPU_SH3
 274         help
 275           Select SH7709 if you have a  80 Mhz SH-3 HD6417709 CPU.
 276
 277 config CPU_SUBTYPE_SH7710
 278         bool "Support SH7710 processor"
 279         select CPU_SH3
 280         select CPU_HAS_DSP
 281         help
 282           Select SH7710 if you have a SH3-DSP SH7710 CPU.
 283
 284 config CPU_SUBTYPE_SH7712
 285         bool "Support SH7712 processor"
 286         select CPU_SH3
 287         select CPU_HAS_DSP
 288         help
 289           Select SH7712 if you have a SH3-DSP SH7712 CPU.
 290
 291 config CPU_SUBTYPE_SH7720
 292         bool "Support SH7720 processor"
 293         select CPU_SH3
 294         select CPU_HAS_DSP
 295         help
 296           Select SH7720 if you have a SH3-DSP SH7720 CPU.
 297
 298 config CPU_SUBTYPE_SH7721
 299         bool "Support SH7721 processor"
 300         select CPU_SH3
 301         select CPU_HAS_DSP
 302         help
 303           Select SH7721 if you have a SH3-DSP SH7721 CPU.
 304
 305 # SH-4 Processor Support
 306
 307 config CPU_SUBTYPE_SH7750
 308         bool "Support SH7750 processor"
 309         select CPU_SH4
 310         help
 311           Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
 312
 313 config CPU_SUBTYPE_SH7091
 314         bool "Support SH7091 processor"
 315         select CPU_SH4
 316         help
 317           Select SH7091 if you have an SH-4 based Sega device (such as
 318           the Dreamcast, Naomi, and Naomi 2).
 319
 320 config CPU_SUBTYPE_SH7750R
 321         bool "Support SH7750R processor"
 322         select CPU_SH4
 323
 324 config CPU_SUBTYPE_SH7750S
 325         bool "Support SH7750S processor"
 326         select CPU_SH4
 327
 328 config CPU_SUBTYPE_SH7751
 329         bool "Support SH7751 processor"
 330         select CPU_SH4
 331         help
 332           Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
 333           or if you have a HD6417751R CPU.
 334
 335 config CPU_SUBTYPE_SH7751R
 336         bool "Support SH7751R processor"
 337         select CPU_SH4
 338
 339 config CPU_SUBTYPE_SH7760
 340         bool "Support SH7760 processor"
 341         select CPU_SH4
 342
 343 config CPU_SUBTYPE_SH4_202
 344         bool "Support SH4-202 processor"
 345         select CPU_SH4
 346
 347 # SH-4A Processor Support
 348
 349 config CPU_SUBTYPE_SH7723
 350         bool "Support SH7723 processor"
 351         select CPU_SH4A
 352         select CPU_SHX2
 353         select ARCH_SHMOBILE
 354         select ARCH_SPARSEMEM_ENABLE
 355         select SYS_SUPPORTS_CMT
 356         help
 357           Select SH7723 if you have an SH-MobileR2 CPU.
 358
 359 config CPU_SUBTYPE_SH7724
 360         bool "Support SH7724 processor"
 361         select CPU_SH4A
 362         select CPU_SHX2
 363         select ARCH_SHMOBILE
 364         select ARCH_SPARSEMEM_ENABLE
 365         select SYS_SUPPORTS_CMT
 366         help
 367           Select SH7724 if you have an SH-MobileR2R CPU.
 368
 369 config CPU_SUBTYPE_SH7763
 370         bool "Support SH7763 processor"
 371         select CPU_SH4A
 372         help
 373           Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
 374
 375 config CPU_SUBTYPE_SH7770
 376         bool "Support SH7770 processor"
 377         select CPU_SH4A
 378
 379 config CPU_SUBTYPE_SH7780
 380         bool "Support SH7780 processor"
 381         select CPU_SH4A
 382
 383 config CPU_SUBTYPE_SH7785
 384         bool "Support SH7785 processor"
 385         select CPU_SH4A
 386         select CPU_SHX2
 387         select ARCH_SPARSEMEM_ENABLE
 388         select SYS_SUPPORTS_NUMA
 389
 390 config CPU_SUBTYPE_SH7786
 391         bool "Support SH7786 processor"
 392         select CPU_SH4A
 393         select CPU_SHX3
 394         select CPU_HAS_PTEAEX
 395         select ARCH_SPARSEMEM_ENABLE
 396         select SYS_SUPPORTS_NUMA
 397
 398 config CPU_SUBTYPE_SHX3
 399         bool "Support SH-X3 processor"
 400         select CPU_SH4A
 401         select CPU_SHX3
 402         select ARCH_SPARSEMEM_ENABLE
 403         select SYS_SUPPORTS_NUMA
 404         select SYS_SUPPORTS_SMP
 405         select GENERIC_CLOCKEVENTS_BROADCAST if SMP
 406
 407 # SH4AL-DSP Processor Support
 408
 409 config CPU_SUBTYPE_SH7343
 410         bool "Support SH7343 processor"
 411         select CPU_SH4AL_DSP
 412         select ARCH_SHMOBILE
 413         select SYS_SUPPORTS_CMT
 414
 415 config CPU_SUBTYPE_SH7722
 416         bool "Support SH7722 processor"
 417         select CPU_SH4AL_DSP
 418         select CPU_SHX2
 419         select ARCH_SHMOBILE
 420         select ARCH_SPARSEMEM_ENABLE
 421         select SYS_SUPPORTS_NUMA
 422         select SYS_SUPPORTS_CMT
 423
 424 config CPU_SUBTYPE_SH7366
 425         bool "Support SH7366 processor"
 426         select CPU_SH4AL_DSP
 427         select CPU_SHX2
 428         select ARCH_SHMOBILE
 429         select ARCH_SPARSEMEM_ENABLE
 430         select SYS_SUPPORTS_NUMA
 431         select SYS_SUPPORTS_CMT
 432
 433 endchoice
 434
 435 endif
 436
 437 if SUPERH64
 438
 439 choice
 440         prompt "Processor sub-type selection"
 441
 442 # SH-5 Processor Support
 443
 444 config CPU_SUBTYPE_SH5_101
 445         bool "Support SH5-101 processor"
 446         select CPU_SH5
 447
 448 config CPU_SUBTYPE_SH5_103
 449         bool "Support SH5-103 processor"
 450         select CPU_SH5
 451
 452 endchoice
 453
 454 endif
 455
 456 source "arch/sh/mm/Kconfig"
 457
 458 source "arch/sh/Kconfig.cpu"
 459
 460 source "arch/sh/boards/Kconfig"
 461
 462 menu "Timer and clock configuration"
 463
 464 config SH_TMU
 465         bool "TMU timer support"
 466         depends on CPU_SH3 || CPU_SH4
 467         default y
 468         select GENERIC_TIME
 469         select GENERIC_CLOCKEVENTS
 470         help
 471           This enables the use of the TMU as the system timer.
 472
 473 config SH_TIMER_CMT
 474         bool "CMT timer driver"
 475         depends on SYS_SUPPORTS_CMT
 476         default y
 477         select GENERIC_CLOCKEVENTS
 478         select GENERIC_TIME
 479         help
 480           This enables build of the CMT timer driver.
 481
 482 config SH_MTU2
 483         bool "MTU2 timer support"
 484         depends on CPU_SH2A && !GENERIC_TIME
 485         default y
 486         help
 487           This enables the use of the MTU2 as the system timer.
 488
 489 config SH_TIMER_MTU2
 490         bool "MTU2 timer driver"
 491         depends on SYS_SUPPORTS_MTU2 && !SH_MTU2
 492         default y
 493         select GENERIC_CLOCKEVENTS
 494         help
 495           This enables build of the MTU2 timer driver.
 496
 497 config SH_TIMER_IRQ
 498         int
 499         default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 || \
 500                         CPU_SUBTYPE_SH7763
 501         default "86" if CPU_SUBTYPE_SH7619
 502         default "140" if CPU_SUBTYPE_SH7206
 503         default "142" if CPU_SUBTYPE_SH7203 && SH_CMT
 504         default "153" if CPU_SUBTYPE_SH7203 && SH_MTU2
 505         default "238" if CPU_SUBTYPE_MXG
 506         default "16"
 507
 508 config SH_PCLK_FREQ
 509         int "Peripheral clock frequency (in Hz)"
 510         default "27000000" if CPU_SUBTYPE_SH7343
 511         default "31250000" if CPU_SUBTYPE_SH7619
 512         default "32000000" if CPU_SUBTYPE_SH7722
 513         default "33333333" if CPU_SUBTYPE_SH7770 || CPU_SUBTYPE_SH7723 || \
 514                               CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
 515                               CPU_SUBTYPE_SH7203 || CPU_SUBTYPE_SH7206 || \
 516                               CPU_SUBTYPE_SH7263 || CPU_SUBTYPE_MXG    || \
 517                               CPU_SUBTYPE_SH7786
 518         default "41666666" if CPU_SUBTYPE_SH7724
 519         default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
 520         default "66000000" if CPU_SUBTYPE_SH4_202
 521         default "50000000"
 522         help
 523           This option is used to specify the peripheral clock frequency.
 524           This is necessary for determining the reference clock value on
 525           platforms lacking an RTC.
 526
 527 config SH_CLK_MD
 528         int "CPU Mode Pin Setting"
 529         depends on CPU_SH2
 530         default 6 if CPU_SUBTYPE_SH7206
 531         default 5 if CPU_SUBTYPE_SH7619
 532         default 0
 533         help
 534           MD2 - MD0 pin setting.
 535
 536 source "kernel/time/Kconfig"
 537
 538 endmenu
 539
 540 menu "CPU Frequency scaling"
 541
 542 source "drivers/cpufreq/Kconfig"
 543
 544 config SH_CPU_FREQ
 545         tristate "SuperH CPU Frequency driver"
 546         depends on CPU_FREQ
 547         select CPU_FREQ_TABLE
 548         help
 549           This adds the cpufreq driver for SuperH. Any CPU that supports
 550           clock rate rounding through the clock framework can use this
 551           driver. While it will make the kernel slightly larger, this is
 552           harmless for CPUs that don't support rate rounding. The driver
 553           will also generate a notice in the boot log before disabling
 554           itself if the CPU in question is not capable of rate rounding.
 555
 556           For details, take a look at <file:Documentation/cpu-freq>.
 557
 558           If unsure, say N.
 559
 560 endmenu
 561
 562 source "arch/sh/drivers/Kconfig"
 563
 564 endmenu
 565
 566 menu "Kernel features"
 567
 568 source kernel/Kconfig.hz
 569
 570 config KEXEC
 571         bool "kexec system call (EXPERIMENTAL)"
 572         depends on SUPERH32 && EXPERIMENTAL && MMU
 573         help
 574           kexec is a system call that implements the ability to shutdown your
 575           current kernel, and to start another kernel.  It is like a reboot
 576           but it is independent of the system firmware.  And like a reboot
 577           you can start any kernel with it, not just Linux.
 578
 579           The name comes from the similarity to the exec system call.
 580
 581           It is an ongoing process to be certain the hardware in a machine
 582           is properly shutdown, so do not be surprised if this code does not
 583           initially work for you.  It may help to enable device hotplugging
 584           support.  As of this writing the exact hardware interface is
 585           strongly in flux, so no good recommendation can be made.
 586
 587 config CRASH_DUMP
 588         bool "kernel crash dumps (EXPERIMENTAL)"
 589         depends on SUPERH32 && EXPERIMENTAL
 590         help
 591           Generate crash dump after being started by kexec.
 592           This should be normally only set in special crash dump kernels
 593           which are loaded in the main kernel with kexec-tools into
 594           a specially reserved region and then later executed after
 595           a crash by kdump/kexec. The crash dump kernel must be compiled
 596           to a memory address not used by the main kernel using
 597           MEMORY_START.
 598
 599           For more details see Documentation/kdump/kdump.txt
 600
 601 config KEXEC_JUMP
 602         bool "kexec jump (EXPERIMENTAL)"
 603         depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL
 604         help
 605           Jump between original kernel and kexeced kernel and invoke
 606           code via KEXEC
 607
 608 config SECCOMP
 609         bool "Enable seccomp to safely compute untrusted bytecode"
 610         depends on PROC_FS
 611         help
 612           This kernel feature is useful for number crunching applications
 613           that may need to compute untrusted bytecode during their
 614           execution. By using pipes or other transports made available to
 615           the process as file descriptors supporting the read/write
 616           syscalls, it's possible to isolate those applications in
 617           their own address space using seccomp. Once seccomp is
 618           enabled via prctl, it cannot be disabled and the task is only
 619           allowed to execute a few safe syscalls defined by each seccomp
 620           mode.
 621
 622           If unsure, say N.
 623
 624 config SMP
 625         bool "Symmetric multi-processing support"
 626         depends on SYS_SUPPORTS_SMP
 627         select USE_GENERIC_SMP_HELPERS
 628         ---help---
 629           This enables support for systems with more than one CPU. If you have
 630           a system with only one CPU, like most personal computers, say N. If
 631           you have a system with more than one CPU, say Y.
 632
 633           If you say N here, the kernel will run on single and multiprocessor
 634           machines, but will use only one CPU of a multiprocessor machine. If
 635           you say Y here, the kernel will run on many, but not all,
 636           singleprocessor machines. On a singleprocessor machine, the kernel
 637           will run faster if you say N here.
 638
 639           People using multiprocessor machines who say Y here should also say
 640           Y to "Enhanced Real Time Clock Support", below.
 641
 642           See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
 643           available at <http://www.tldp.org/docs.html#howto>.
 644
 645           If you don't know what to do here, say N.
 646
 647 config NR_CPUS
 648         int "Maximum number of CPUs (2-32)"
 649         range 2 32
 650         depends on SMP
 651         default "4" if CPU_SHX3
 652         default "2"
 653         help
 654           This allows you to specify the maximum number of CPUs which this
 655           kernel will support.  The maximum supported value is 32 and the
 656           minimum value which makes sense is 2.
 657
 658           This is purely to save memory - each supported CPU adds
 659           approximately eight kilobytes to the kernel image.
 660
 661 source "kernel/Kconfig.preempt"
 662
 663 config GUSA
 664         def_bool y
 665         depends on !SMP && SUPERH32
 666         help
 667           This enables support for gUSA (general UserSpace Atomicity).
 668           This is the default implementation for both UP and non-ll/sc
 669           CPUs, and is used by the libc, amongst others.
 670
 671           For additional information, design information can be found
 672           in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
 673
 674           This should only be disabled for special cases where alternate
 675           atomicity implementations exist.
 676
 677 config GUSA_RB
 678         bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
 679         depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
 680         help
 681           Enabling this option will allow the kernel to implement some
 682           atomic operations using a software implementation of load-locked/
 683           store-conditional (LLSC). On machines which do not have hardware
 684           LLSC, this should be more efficient than the other alternative of
 685           disabling interrupts around the atomic sequence.
 686
 687 endmenu
 688
 689 menu "Boot options"
 690
 691 config ZERO_PAGE_OFFSET
 692         hex "Zero page offset"
 693         default "0x00004000" if SH_SH03
 694         default "0x00010000" if PAGE_SIZE_64KB
 695         default "0x00002000" if PAGE_SIZE_8KB
 696         default "0x00001000"
 697         help
 698           This sets the default offset of zero page.
 699
 700 config BOOT_LINK_OFFSET
 701         hex "Link address offset for booting"
 702         default "0x00800000"
 703         help
 704           This option allows you to set the link address offset of the zImage.
 705           This can be useful if you are on a board which has a small amount of
 706           memory.
 707
 708 config UBC_WAKEUP
 709         bool "Wakeup UBC on startup"
 710         depends on CPU_SH4 && !CPU_SH4A
 711         help
 712           Selecting this option will wakeup the User Break Controller (UBC) on
 713           startup. Although the UBC is left in an awake state when the processor
 714           comes up, some boot loaders misbehave by putting the UBC to sleep in a
 715           power saving state, which causes issues with things like ptrace().
 716
 717           If unsure, say N.
 718
 719 config CMDLINE_BOOL
 720         bool "Default bootloader kernel arguments"
 721
 722 config CMDLINE
 723         string "Initial kernel command string"
 724         depends on CMDLINE_BOOL
 725         default "console=ttySC1,115200"
 726
 727 endmenu
 728
 729 menu "Bus options"
 730
 731 config SUPERHYWAY
 732         tristate "SuperHyway Bus support"
 733         depends on CPU_SUBTYPE_SH4_202
 734
 735 config MAPLE
 736         bool "Maple Bus support"
 737         depends on SH_DREAMCAST
 738         help
 739          The Maple Bus is SEGA's serial communication bus for peripherals
 740          on the Dreamcast. Without this bus support you won't be able to
 741          get your Dreamcast keyboard etc to work, so most users
 742          probably want to say 'Y' here, unless you are only using the
 743          Dreamcast with a serial line terminal or a remote network
 744          connection.
 745
 746 source "arch/sh/drivers/pci/Kconfig"
 747
 748 source "drivers/pci/pcie/Kconfig"
 749
 750 source "drivers/pci/Kconfig"
 751
 752 source "drivers/pcmcia/Kconfig"
 753
 754 source "drivers/pci/hotplug/Kconfig"
 755
 756 endmenu
 757
 758 menu "Executable file formats"
 759
 760 source "fs/Kconfig.binfmt"
 761
 762 endmenu
 763
 764 menu "Power management options (EXPERIMENTAL)"
 765 depends on EXPERIMENTAL
 766
 767 source "kernel/power/Kconfig"
 768
 769 source "drivers/cpuidle/Kconfig"
 770
 771 endmenu
 772
 773 source "net/Kconfig"
 774
 775 source "drivers/Kconfig"
 776
 777 source "fs/Kconfig"
 778
 779 source "arch/sh/Kconfig.debug"
 780
 781 source "security/Kconfig"
 782
 783 source "crypto/Kconfig"
 784
 785 source "lib/Kconfig"