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_LMB
  14         select HAVE_OPROFILE
  15         select HAVE_GENERIC_DMA_COHERENT
  16         select HAVE_IOREMAP_PROT if MMU
  17         select HAVE_ARCH_TRACEHOOK
  18         select HAVE_DMA_API_DEBUG
  19         select HAVE_PERF_COUNTERS
  20         select HAVE_KERNEL_GZIP
  21         select HAVE_KERNEL_BZIP2
  22         select HAVE_KERNEL_LZMA
  23         select HAVE_SYSCALL_TRACEPOINTS
  24         select RTC_LIB
  25         select GENERIC_ATOMIC64
  26         help
  27           The SuperH is a RISC processor targeted for use in embedded systems
  28           and consumer electronics; it was also used in the Sega Dreamcast
  29           gaming console.  The SuperH port has a home page at
  30           <http://www.linux-sh.org/>.
  31
  32 config SUPERH32
  33         def_bool ARCH = "sh"
  34         select HAVE_KPROBES
  35         select HAVE_KRETPROBES
  36         select HAVE_FUNCTION_TRACER
  37         select HAVE_FTRACE_MCOUNT_RECORD
  38         select HAVE_DYNAMIC_FTRACE
  39         select HAVE_FUNCTION_TRACE_MCOUNT_TEST
  40         select HAVE_FTRACE_SYSCALLS
  41         select HAVE_FUNCTION_GRAPH_TRACER
  42         select HAVE_ARCH_KGDB
  43         select ARCH_HIBERNATION_POSSIBLE if MMU
  44
  45 config SUPERH64
  46         def_bool ARCH = "sh64"
  47
  48 config ARCH_DEFCONFIG
  49         string
  50         default "arch/sh/configs/shx3_defconfig" if SUPERH32
  51         default "arch/sh/configs/cayman_defconfig" if SUPERH64
  52
  53 config RWSEM_GENERIC_SPINLOCK
  54         def_bool y
  55
  56 config RWSEM_XCHGADD_ALGORITHM
  57         bool
  58
  59 config GENERIC_BUG
  60         def_bool y
  61         depends on BUG && SUPERH32
  62
  63 config GENERIC_CSUM
  64         def_bool y
  65         depends on SUPERH64
  66
  67 config GENERIC_FIND_NEXT_BIT
  68         def_bool y
  69
  70 config GENERIC_HWEIGHT
  71         def_bool y
  72
  73 config GENERIC_HARDIRQS
  74         def_bool y
  75
  76 config GENERIC_HARDIRQS_NO__DO_IRQ
  77         def_bool y
  78
  79 config GENERIC_IRQ_PROBE
  80         def_bool y
  81
  82 config IRQ_PER_CPU
  83         def_bool y
  84
  85 config GENERIC_GPIO
  86         def_bool n
  87
  88 config GENERIC_CALIBRATE_DELAY
  89         bool
  90
  91 config GENERIC_IOMAP
  92         bool
  93
  94 config GENERIC_TIME
  95         def_bool y
  96
  97 config GENERIC_CLOCKEVENTS
  98         def_bool y
  99
 100 config GENERIC_CLOCKEVENTS_BROADCAST
 101         bool
 102
 103 config GENERIC_CMOS_UPDATE
 104         def_bool y
 105         depends on SH_SH03 || SH_DREAMCAST
 106
 107 config GENERIC_LOCKBREAK
 108         def_bool y
 109         depends on SMP && PREEMPT
 110
 111 config SYS_SUPPORTS_PM
 112         bool
 113         depends on !SMP
 114
 115 config ARCH_SUSPEND_POSSIBLE
 116         def_bool n
 117
 118 config ARCH_HIBERNATION_POSSIBLE
 119         def_bool n
 120
 121 config SYS_SUPPORTS_APM_EMULATION
 122         bool
 123         select ARCH_SUSPEND_POSSIBLE
 124
 125 config SYS_SUPPORTS_SMP
 126         bool
 127
 128 config SYS_SUPPORTS_NUMA
 129         bool
 130
 131 config SYS_SUPPORTS_PCI
 132         bool
 133
 134 config SYS_SUPPORTS_CMT
 135         bool
 136
 137 config SYS_SUPPORTS_MTU2
 138         bool
 139
 140 config SYS_SUPPORTS_TMU
 141         bool
 142
 143 config STACKTRACE_SUPPORT
 144         def_bool y
 145
 146 config LOCKDEP_SUPPORT
 147         def_bool y
 148
 149 config HAVE_LATENCYTOP_SUPPORT
 150         def_bool y
 151         depends on !SMP
 152
 153 config ARCH_HAS_ILOG2_U32
 154         def_bool n
 155
 156 config ARCH_HAS_ILOG2_U64
 157         def_bool n
 158
 159 config ARCH_NO_VIRT_TO_BUS
 160         def_bool y
 161
 162 config ARCH_HAS_DEFAULT_IDLE
 163         def_bool y
 164
 165 config ARCH_HAS_CPU_IDLE_WAIT
 166         def_bool y
 167
 168 config IO_TRAPPED
 169         bool
 170
 171 source "init/Kconfig"
 172
 173 source "kernel/Kconfig.freezer"
 174
 175 menu "System type"
 176
 177 #
 178 # Processor families
 179 #
 180 config CPU_SH2
 181         bool
 182
 183 config CPU_SH2A
 184         bool
 185         select CPU_SH2
 186
 187 config CPU_SH3
 188         bool
 189         select CPU_HAS_INTEVT
 190         select CPU_HAS_SR_RB
 191         select SYS_SUPPORTS_TMU
 192
 193 config CPU_SH4
 194         bool
 195         select CPU_HAS_INTEVT
 196         select CPU_HAS_SR_RB
 197         select CPU_HAS_FPU if !CPU_SH4AL_DSP
 198         select SYS_SUPPORTS_TMU
 199
 200 config CPU_SH4A
 201         bool
 202         select CPU_SH4
 203
 204 config CPU_SH4AL_DSP
 205         bool
 206         select CPU_SH4A
 207         select CPU_HAS_DSP
 208
 209 config CPU_SH5
 210         bool
 211         select CPU_HAS_FPU
 212         select SYS_SUPPORTS_TMU
 213
 214 config CPU_SHX2
 215         bool
 216
 217 config CPU_SHX3
 218         bool
 219
 220 config ARCH_SHMOBILE
 221         bool
 222         select ARCH_SUSPEND_POSSIBLE
 223         select PM
 224         select PM_RUNTIME
 225
 226 if SUPERH32
 227
 228 choice
 229         prompt "Processor sub-type selection"
 230
 231 #
 232 # Processor subtypes
 233 #
 234
 235 # SH-2 Processor Support
 236
 237 config CPU_SUBTYPE_SH7619
 238         bool "Support SH7619 processor"
 239         select CPU_SH2
 240         select SYS_SUPPORTS_CMT
 241
 242 # SH-2A Processor Support
 243
 244 config CPU_SUBTYPE_SH7201
 245         bool "Support SH7201 processor"
 246         select CPU_SH2A
 247         select CPU_HAS_FPU
 248         select SYS_SUPPORTS_MTU2
 249
 250 config CPU_SUBTYPE_SH7203
 251         bool "Support SH7203 processor"
 252         select CPU_SH2A
 253         select CPU_HAS_FPU
 254         select SYS_SUPPORTS_CMT
 255         select SYS_SUPPORTS_MTU2
 256
 257 config CPU_SUBTYPE_SH7206
 258         bool "Support SH7206 processor"
 259         select CPU_SH2A
 260         select SYS_SUPPORTS_CMT
 261         select SYS_SUPPORTS_MTU2
 262
 263 config CPU_SUBTYPE_SH7263
 264         bool "Support SH7263 processor"
 265         select CPU_SH2A
 266         select CPU_HAS_FPU
 267         select SYS_SUPPORTS_CMT
 268         select SYS_SUPPORTS_MTU2
 269
 270 config CPU_SUBTYPE_MXG
 271         bool "Support MX-G processor"
 272         select CPU_SH2A
 273         select SYS_SUPPORTS_MTU2
 274         help
 275           Select MX-G if running on an R8A03022BG part.
 276
 277 # SH-3 Processor Support
 278
 279 config CPU_SUBTYPE_SH7705
 280         bool "Support SH7705 processor"
 281         select CPU_SH3
 282
 283 config CPU_SUBTYPE_SH7706
 284         bool "Support SH7706 processor"
 285         select CPU_SH3
 286         help
 287           Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
 288
 289 config CPU_SUBTYPE_SH7707
 290         bool "Support SH7707 processor"
 291         select CPU_SH3
 292         help
 293           Select SH7707 if you have a  60 Mhz SH-3 HD6417707 CPU.
 294
 295 config CPU_SUBTYPE_SH7708
 296         bool "Support SH7708 processor"
 297         select CPU_SH3
 298         help
 299           Select SH7708 if you have a  60 Mhz SH-3 HD6417708S or
 300           if you have a 100 Mhz SH-3 HD6417708R CPU.
 301
 302 config CPU_SUBTYPE_SH7709
 303         bool "Support SH7709 processor"
 304         select CPU_SH3
 305         help
 306           Select SH7709 if you have a  80 Mhz SH-3 HD6417709 CPU.
 307
 308 config CPU_SUBTYPE_SH7710
 309         bool "Support SH7710 processor"
 310         select CPU_SH3
 311         select CPU_HAS_DSP
 312         help
 313           Select SH7710 if you have a SH3-DSP SH7710 CPU.
 314
 315 config CPU_SUBTYPE_SH7712
 316         bool "Support SH7712 processor"
 317         select CPU_SH3
 318         select CPU_HAS_DSP
 319         help
 320           Select SH7712 if you have a SH3-DSP SH7712 CPU.
 321
 322 config CPU_SUBTYPE_SH7720
 323         bool "Support SH7720 processor"
 324         select CPU_SH3
 325         select CPU_HAS_DSP
 326         select SYS_SUPPORTS_CMT
 327         help
 328           Select SH7720 if you have a SH3-DSP SH7720 CPU.
 329
 330 config CPU_SUBTYPE_SH7721
 331         bool "Support SH7721 processor"
 332         select CPU_SH3
 333         select CPU_HAS_DSP
 334         select SYS_SUPPORTS_CMT
 335         help
 336           Select SH7721 if you have a SH3-DSP SH7721 CPU.
 337
 338 # SH-4 Processor Support
 339
 340 config CPU_SUBTYPE_SH7750
 341         bool "Support SH7750 processor"
 342         select CPU_SH4
 343         help
 344           Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
 345
 346 config CPU_SUBTYPE_SH7091
 347         bool "Support SH7091 processor"
 348         select CPU_SH4
 349         help
 350           Select SH7091 if you have an SH-4 based Sega device (such as
 351           the Dreamcast, Naomi, and Naomi 2).
 352
 353 config CPU_SUBTYPE_SH7750R
 354         bool "Support SH7750R processor"
 355         select CPU_SH4
 356
 357 config CPU_SUBTYPE_SH7750S
 358         bool "Support SH7750S processor"
 359         select CPU_SH4
 360
 361 config CPU_SUBTYPE_SH7751
 362         bool "Support SH7751 processor"
 363         select CPU_SH4
 364         help
 365           Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
 366           or if you have a HD6417751R CPU.
 367
 368 config CPU_SUBTYPE_SH7751R
 369         bool "Support SH7751R processor"
 370         select CPU_SH4
 371
 372 config CPU_SUBTYPE_SH7760
 373         bool "Support SH7760 processor"
 374         select CPU_SH4
 375
 376 config CPU_SUBTYPE_SH4_202
 377         bool "Support SH4-202 processor"
 378         select CPU_SH4
 379
 380 # SH-4A Processor Support
 381
 382 config CPU_SUBTYPE_SH7723
 383         bool "Support SH7723 processor"
 384         select CPU_SH4A
 385         select CPU_SHX2
 386         select ARCH_SHMOBILE
 387         select ARCH_SPARSEMEM_ENABLE
 388         select SYS_SUPPORTS_CMT
 389         help
 390           Select SH7723 if you have an SH-MobileR2 CPU.
 391
 392 config CPU_SUBTYPE_SH7724
 393         bool "Support SH7724 processor"
 394         select CPU_SH4A
 395         select CPU_SHX2
 396         select ARCH_SHMOBILE
 397         select ARCH_SPARSEMEM_ENABLE
 398         select SYS_SUPPORTS_CMT
 399         help
 400           Select SH7724 if you have an SH-MobileR2R CPU.
 401
 402 config CPU_SUBTYPE_SH7757
 403         bool "Support SH7757 processor"
 404         select CPU_SH4A
 405         select CPU_SHX2
 406         help
 407           Select SH7757 if you have a SH4A SH7757 CPU.
 408
 409 config CPU_SUBTYPE_SH7763
 410         bool "Support SH7763 processor"
 411         select CPU_SH4A
 412         help
 413           Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
 414
 415 config CPU_SUBTYPE_SH7770
 416         bool "Support SH7770 processor"
 417         select CPU_SH4A
 418
 419 config CPU_SUBTYPE_SH7780
 420         bool "Support SH7780 processor"
 421         select CPU_SH4A
 422
 423 config CPU_SUBTYPE_SH7785
 424         bool "Support SH7785 processor"
 425         select CPU_SH4A
 426         select CPU_SHX2
 427         select ARCH_SPARSEMEM_ENABLE
 428         select SYS_SUPPORTS_NUMA
 429
 430 config CPU_SUBTYPE_SH7786
 431         bool "Support SH7786 processor"
 432         select CPU_SH4A
 433         select CPU_SHX3
 434         select CPU_HAS_PTEAEX
 435         select ARCH_SPARSEMEM_ENABLE
 436         select SYS_SUPPORTS_NUMA
 437         select SYS_SUPPORTS_SMP
 438         select GENERIC_CLOCKEVENTS_BROADCAST if SMP
 439
 440 config CPU_SUBTYPE_SHX3
 441         bool "Support SH-X3 processor"
 442         select CPU_SH4A
 443         select CPU_SHX3
 444         select ARCH_SPARSEMEM_ENABLE
 445         select SYS_SUPPORTS_NUMA
 446         select SYS_SUPPORTS_SMP
 447         select GENERIC_CLOCKEVENTS_BROADCAST if SMP
 448
 449 # SH4AL-DSP Processor Support
 450
 451 config CPU_SUBTYPE_SH7343
 452         bool "Support SH7343 processor"
 453         select CPU_SH4AL_DSP
 454         select ARCH_SHMOBILE
 455         select SYS_SUPPORTS_CMT
 456
 457 config CPU_SUBTYPE_SH7722
 458         bool "Support SH7722 processor"
 459         select CPU_SH4AL_DSP
 460         select CPU_SHX2
 461         select ARCH_SHMOBILE
 462         select ARCH_SPARSEMEM_ENABLE
 463         select SYS_SUPPORTS_NUMA
 464         select SYS_SUPPORTS_CMT
 465
 466 config CPU_SUBTYPE_SH7366
 467         bool "Support SH7366 processor"
 468         select CPU_SH4AL_DSP
 469         select CPU_SHX2
 470         select ARCH_SHMOBILE
 471         select ARCH_SPARSEMEM_ENABLE
 472         select SYS_SUPPORTS_NUMA
 473         select SYS_SUPPORTS_CMT
 474
 475 endchoice
 476
 477 endif
 478
 479 if SUPERH64
 480
 481 choice
 482         prompt "Processor sub-type selection"
 483
 484 # SH-5 Processor Support
 485
 486 config CPU_SUBTYPE_SH5_101
 487         bool "Support SH5-101 processor"
 488         select CPU_SH5
 489
 490 config CPU_SUBTYPE_SH5_103
 491         bool "Support SH5-103 processor"
 492         select CPU_SH5
 493
 494 endchoice
 495
 496 endif
 497
 498 source "arch/sh/mm/Kconfig"
 499
 500 source "arch/sh/Kconfig.cpu"
 501
 502 source "arch/sh/boards/Kconfig"
 503
 504 menu "Timer and clock configuration"
 505
 506 config SH_TIMER_TMU
 507         bool "TMU timer driver"
 508         depends on SYS_SUPPORTS_TMU
 509         default y
 510         help
 511           This enables the build of the TMU timer driver.
 512
 513 config SH_TIMER_CMT
 514         bool "CMT timer driver"
 515         depends on SYS_SUPPORTS_CMT
 516         default y
 517         help
 518           This enables build of the CMT timer driver.
 519
 520 config SH_TIMER_MTU2
 521         bool "MTU2 timer driver"
 522         depends on SYS_SUPPORTS_MTU2
 523         default y
 524         help
 525           This enables build of the MTU2 timer driver.
 526
 527 config SH_PCLK_FREQ
 528         int "Peripheral clock frequency (in Hz)"
 529         default "27000000" if CPU_SUBTYPE_SH7343
 530         default "31250000" if CPU_SUBTYPE_SH7619
 531         default "32000000" if CPU_SUBTYPE_SH7722
 532         default "33333333" if CPU_SUBTYPE_SH7770 || CPU_SUBTYPE_SH7723 || \
 533                               CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \
 534                               CPU_SUBTYPE_SH7203 || CPU_SUBTYPE_SH7206 || \
 535                               CPU_SUBTYPE_SH7263 || CPU_SUBTYPE_MXG    || \
 536                               CPU_SUBTYPE_SH7786 || CPU_SUBTYPE_SH7724
 537         default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
 538         default "66000000" if CPU_SUBTYPE_SH4_202
 539         default "50000000"
 540         help
 541           This option is used to specify the peripheral clock frequency.
 542           This is necessary for determining the reference clock value on
 543           platforms lacking an RTC.
 544
 545 config SH_CLK_CPG
 546         def_bool y
 547
 548 config SH_CLK_CPG_LEGACY
 549         depends on SH_CLK_CPG
 550         def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE
 551
 552 config SH_CLK_MD
 553         int "CPU Mode Pin Setting"
 554         depends on CPU_SH2
 555         default 6 if CPU_SUBTYPE_SH7206
 556         default 5 if CPU_SUBTYPE_SH7619
 557         default 0
 558         help
 559           MD2 - MD0 pin setting.
 560
 561 source "kernel/time/Kconfig"
 562
 563 endmenu
 564
 565 menu "CPU Frequency scaling"
 566
 567 source "drivers/cpufreq/Kconfig"
 568
 569 config SH_CPU_FREQ
 570         tristate "SuperH CPU Frequency driver"
 571         depends on CPU_FREQ
 572         select CPU_FREQ_TABLE
 573         help
 574           This adds the cpufreq driver for SuperH. Any CPU that supports
 575           clock rate rounding through the clock framework can use this
 576           driver. While it will make the kernel slightly larger, this is
 577           harmless for CPUs that don't support rate rounding. The driver
 578           will also generate a notice in the boot log before disabling
 579           itself if the CPU in question is not capable of rate rounding.
 580
 581           For details, take a look at <file:Documentation/cpu-freq>.
 582
 583           If unsure, say N.
 584
 585 endmenu
 586
 587 source "arch/sh/drivers/Kconfig"
 588
 589 endmenu
 590
 591 menu "Kernel features"
 592
 593 source kernel/Kconfig.hz
 594
 595 config KEXEC
 596         bool "kexec system call (EXPERIMENTAL)"
 597         depends on SUPERH32 && EXPERIMENTAL && MMU
 598         help
 599           kexec is a system call that implements the ability to shutdown your
 600           current kernel, and to start another kernel.  It is like a reboot
 601           but it is independent of the system firmware.  And like a reboot
 602           you can start any kernel with it, not just Linux.
 603
 604           The name comes from the similarity to the exec system call.
 605
 606           It is an ongoing process to be certain the hardware in a machine
 607           is properly shutdown, so do not be surprised if this code does not
 608           initially work for you.  It may help to enable device hotplugging
 609           support.  As of this writing the exact hardware interface is
 610           strongly in flux, so no good recommendation can be made.
 611
 612 config CRASH_DUMP
 613         bool "kernel crash dumps (EXPERIMENTAL)"
 614         depends on SUPERH32 && EXPERIMENTAL
 615         help
 616           Generate crash dump after being started by kexec.
 617           This should be normally only set in special crash dump kernels
 618           which are loaded in the main kernel with kexec-tools into
 619           a specially reserved region and then later executed after
 620           a crash by kdump/kexec. The crash dump kernel must be compiled
 621           to a memory address not used by the main kernel using
 622           MEMORY_START.
 623
 624           For more details see Documentation/kdump/kdump.txt
 625
 626 config KEXEC_JUMP
 627         bool "kexec jump (EXPERIMENTAL)"
 628         depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL
 629         help
 630           Jump between original kernel and kexeced kernel and invoke
 631           code via KEXEC
 632
 633 config SECCOMP
 634         bool "Enable seccomp to safely compute untrusted bytecode"
 635         depends on PROC_FS
 636         help
 637           This kernel feature is useful for number crunching applications
 638           that may need to compute untrusted bytecode during their
 639           execution. By using pipes or other transports made available to
 640           the process as file descriptors supporting the read/write
 641           syscalls, it's possible to isolate those applications in
 642           their own address space using seccomp. Once seccomp is
 643           enabled via prctl, it cannot be disabled and the task is only
 644           allowed to execute a few safe syscalls defined by each seccomp
 645           mode.
 646
 647           If unsure, say N.
 648
 649 config SMP
 650         bool "Symmetric multi-processing support"
 651         depends on SYS_SUPPORTS_SMP
 652         select USE_GENERIC_SMP_HELPERS
 653         ---help---
 654           This enables support for systems with more than one CPU. If you have
 655           a system with only one CPU, like most personal computers, say N. If
 656           you have a system with more than one CPU, say Y.
 657
 658           If you say N here, the kernel will run on single and multiprocessor
 659           machines, but will use only one CPU of a multiprocessor machine. If
 660           you say Y here, the kernel will run on many, but not all,
 661           singleprocessor machines. On a singleprocessor machine, the kernel
 662           will run faster if you say N here.
 663
 664           People using multiprocessor machines who say Y here should also say
 665           Y to "Enhanced Real Time Clock Support", below.
 666
 667           See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
 668           available at <http://www.tldp.org/docs.html#howto>.
 669
 670           If you don't know what to do here, say N.
 671
 672 config NR_CPUS
 673         int "Maximum number of CPUs (2-32)"
 674         range 2 32
 675         depends on SMP
 676         default "4" if CPU_SUBTYPE_SHX3
 677         default "2"
 678         help
 679           This allows you to specify the maximum number of CPUs which this
 680           kernel will support.  The maximum supported value is 32 and the
 681           minimum value which makes sense is 2.
 682
 683           This is purely to save memory - each supported CPU adds
 684           approximately eight kilobytes to the kernel image.
 685
 686 source "kernel/Kconfig.preempt"
 687
 688 config GUSA
 689         def_bool y
 690         depends on !SMP && SUPERH32
 691         help
 692           This enables support for gUSA (general UserSpace Atomicity).
 693           This is the default implementation for both UP and non-ll/sc
 694           CPUs, and is used by the libc, amongst others.
 695
 696           For additional information, design information can be found
 697           in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
 698
 699           This should only be disabled for special cases where alternate
 700           atomicity implementations exist.
 701
 702 config GUSA_RB
 703         bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
 704         depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
 705         help
 706           Enabling this option will allow the kernel to implement some
 707           atomic operations using a software implementation of load-locked/
 708           store-conditional (LLSC). On machines which do not have hardware
 709           LLSC, this should be more efficient than the other alternative of
 710           disabling interrupts around the atomic sequence.
 711
 712 config SPARSE_IRQ
 713         bool "Support sparse irq numbering"
 714         depends on EXPERIMENTAL
 715         help
 716           This enables support for sparse irqs. This is useful in general
 717           as most CPUs have a fairly sparse array of IRQ vectors, which
 718           the irq_desc then maps directly on to. Systems with a high
 719           number of off-chip IRQs will want to treat this as
 720           experimental until they have been independently verified.
 721
 722           If you don't know what to do here, say N.
 723
 724 endmenu
 725
 726 menu "Boot options"
 727
 728 config ZERO_PAGE_OFFSET
 729         hex
 730         default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
 731                                 SH_7751_SOLUTION_ENGINE
 732         default "0x00004000" if PAGE_SIZE_16KB || SH_SH03
 733         default "0x00002000" if PAGE_SIZE_8KB
 734         default "0x00001000"
 735         help
 736           This sets the default offset of zero page.
 737
 738 config BOOT_LINK_OFFSET
 739         hex
 740         default "0x00210000" if SH_SHMIN
 741         default "0x00400000" if SH_CAYMAN
 742         default "0x00810000" if SH_7780_SOLUTION_ENGINE
 743         default "0x009e0000" if SH_TITAN
 744         default "0x01800000" if SH_SDK7780
 745         default "0x02000000" if SH_EDOSK7760
 746         default "0x00800000"
 747         help
 748           This option allows you to set the link address offset of the zImage.
 749           This can be useful if you are on a board which has a small amount of
 750           memory.
 751
 752 config ENTRY_OFFSET
 753         hex
 754         default "0x00001000" if PAGE_SIZE_4KB
 755         default "0x00002000" if PAGE_SIZE_8KB
 756         default "0x00004000" if PAGE_SIZE_16KB
 757         default "0x00010000" if PAGE_SIZE_64KB
 758         default "0x00000000"
 759
 760 config UBC_WAKEUP
 761         bool "Wakeup UBC on startup"
 762         depends on CPU_SH4 && !CPU_SH4A
 763         help
 764           Selecting this option will wakeup the User Break Controller (UBC) on
 765           startup. Although the UBC is left in an awake state when the processor
 766           comes up, some boot loaders misbehave by putting the UBC to sleep in a
 767           power saving state, which causes issues with things like ptrace().
 768
 769           If unsure, say N.
 770
 771 choice
 772         prompt "Kernel command line"
 773         optional
 774         default CMDLINE_OVERWRITE
 775         help
 776           Setting this option allows the kernel command line arguments
 777           to be set.
 778
 779 config CMDLINE_OVERWRITE
 780         bool "Overwrite bootloader kernel arguments"
 781         help
 782           Given string will overwrite any arguments passed in by
 783           a bootloader.
 784
 785 config CMDLINE_EXTEND
 786         bool "Extend bootloader kernel arguments"
 787         help
 788           Given string will be concatenated with arguments passed in
 789           by a bootloader.
 790
 791 endchoice
 792
 793 config CMDLINE
 794         string "Kernel command line arguments string"
 795         depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
 796         default "console=ttySC1,115200"
 797
 798 endmenu
 799
 800 menu "Bus options"
 801
 802 config SUPERHYWAY
 803         tristate "SuperHyway Bus support"
 804         depends on CPU_SUBTYPE_SH4_202
 805
 806 config MAPLE
 807         bool "Maple Bus support"
 808         depends on SH_DREAMCAST
 809         help
 810          The Maple Bus is SEGA's serial communication bus for peripherals
 811          on the Dreamcast. Without this bus support you won't be able to
 812          get your Dreamcast keyboard etc to work, so most users
 813          probably want to say 'Y' here, unless you are only using the
 814          Dreamcast with a serial line terminal or a remote network
 815          connection.
 816
 817 source "arch/sh/drivers/pci/Kconfig"
 818
 819 source "drivers/pci/pcie/Kconfig"
 820
 821 source "drivers/pci/Kconfig"
 822
 823 source "drivers/pcmcia/Kconfig"
 824
 825 source "drivers/pci/hotplug/Kconfig"
 826
 827 endmenu
 828
 829 menu "Executable file formats"
 830
 831 source "fs/Kconfig.binfmt"
 832
 833 endmenu
 834
 835 menu "Power management options (EXPERIMENTAL)"
 836 depends on EXPERIMENTAL
 837
 838 source "kernel/power/Kconfig"
 839
 840 source "drivers/cpuidle/Kconfig"
 841
 842 endmenu
 843
 844 source "net/Kconfig"
 845
 846 source "drivers/Kconfig"
 847
 848 source "fs/Kconfig"
 849
 850 source "arch/sh/Kconfig.debug"
 851
 852 source "security/Kconfig"
 853
 854 source "crypto/Kconfig"
 855
 856 source "lib/Kconfig"