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 if HAS_IOPORT
  13         select HAVE_MEMBLOCK
  14         select HAVE_OPROFILE
  15         select HAVE_GENERIC_DMA_COHERENT
  16         select HAVE_ARCH_TRACEHOOK
  17         select HAVE_DMA_API_DEBUG
  18         select HAVE_DMA_ATTRS
  19         select HAVE_PERF_EVENTS
  20         select PERF_USE_VMALLOC
  21         select HAVE_KERNEL_GZIP
  22         select HAVE_KERNEL_BZIP2
  23         select HAVE_KERNEL_LZMA
  24         select HAVE_KERNEL_LZO
  25         select HAVE_SYSCALL_TRACEPOINTS
  26         select RTC_LIB
  27         select GENERIC_ATOMIC64
  28         help
  29           The SuperH is a RISC processor targeted for use in embedded systems
  30           and consumer electronics; it was also used in the Sega Dreamcast
  31           gaming console.  The SuperH port has a home page at
  32           <http://www.linux-sh.org/>.
  33
  34 config SUPERH32
  35         def_bool ARCH = "sh"
  36         select HAVE_KPROBES
  37         select HAVE_KRETPROBES
  38         select HAVE_IOREMAP_PROT if MMU && !X2TLB
  39         select HAVE_FUNCTION_TRACER
  40         select HAVE_FTRACE_MCOUNT_RECORD
  41         select HAVE_DYNAMIC_FTRACE
  42         select HAVE_FUNCTION_TRACE_MCOUNT_TEST
  43         select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE
  44         select HAVE_FUNCTION_GRAPH_TRACER
  45         select HAVE_ARCH_KGDB
  46         select HAVE_HW_BREAKPOINT
  47         select HAVE_MIXED_BREAKPOINTS_REGS
  48         select PERF_EVENTS if HAVE_HW_BREAKPOINT
  49         select ARCH_HIBERNATION_POSSIBLE if MMU
  50
  51 config SUPERH64
  52         def_bool ARCH = "sh64"
  53
  54 config ARCH_DEFCONFIG
  55         string
  56         default "arch/sh/configs/shx3_defconfig" if SUPERH32
  57         default "arch/sh/configs/cayman_defconfig" if SUPERH64
  58
  59 config RWSEM_GENERIC_SPINLOCK
  60         def_bool y
  61
  62 config RWSEM_XCHGADD_ALGORITHM
  63         bool
  64
  65 config GENERIC_BUG
  66         def_bool y
  67         depends on BUG && SUPERH32
  68
  69 config GENERIC_CSUM
  70         def_bool y
  71         depends on SUPERH64
  72
  73 config GENERIC_FIND_NEXT_BIT
  74         def_bool y
  75
  76 config GENERIC_HWEIGHT
  77         def_bool y
  78
  79 config GENERIC_HARDIRQS
  80         def_bool y
  81
  82 config GENERIC_HARDIRQS_NO__DO_IRQ
  83         def_bool y
  84
  85 config IRQ_PER_CPU
  86         def_bool y
  87
  88 config SPARSE_IRQ
  89         def_bool y
  90         depends on SUPERH32
  91
  92 config GENERIC_GPIO
  93         def_bool n
  94
  95 config GENERIC_CALIBRATE_DELAY
  96         bool
  97
  98 config GENERIC_IOMAP
  99         bool
 100
 101 config GENERIC_TIME
 102         def_bool y
 103
 104 config GENERIC_CLOCKEVENTS
 105         def_bool y
 106
 107 config GENERIC_CLOCKEVENTS_BROADCAST
 108         bool
 109
 110 config GENERIC_CMOS_UPDATE
 111         def_bool y
 112         depends on SH_SH03 || SH_DREAMCAST
 113
 114 config GENERIC_LOCKBREAK
 115         def_bool y
 116         depends on SMP && PREEMPT
 117
 118 config SYS_SUPPORTS_PM
 119         bool
 120         depends on !SMP
 121
 122 config ARCH_SUSPEND_POSSIBLE
 123         def_bool n
 124
 125 config ARCH_HIBERNATION_POSSIBLE
 126         def_bool n
 127
 128 config SYS_SUPPORTS_APM_EMULATION
 129         bool
 130         select ARCH_SUSPEND_POSSIBLE
 131
 132 config SYS_SUPPORTS_HUGETLBFS
 133         bool
 134
 135 config SYS_SUPPORTS_SMP
 136         bool
 137
 138 config SYS_SUPPORTS_NUMA
 139         bool
 140
 141 config SYS_SUPPORTS_PCI
 142         bool
 143
 144 config SYS_SUPPORTS_CMT
 145         bool
 146
 147 config SYS_SUPPORTS_MTU2
 148         bool
 149
 150 config SYS_SUPPORTS_TMU
 151         bool
 152
 153 config STACKTRACE_SUPPORT
 154         def_bool y
 155
 156 config LOCKDEP_SUPPORT
 157         def_bool y
 158
 159 config HAVE_LATENCYTOP_SUPPORT
 160         def_bool y
 161
 162 config ARCH_HAS_ILOG2_U32
 163         def_bool n
 164
 165 config ARCH_HAS_ILOG2_U64
 166         def_bool n
 167
 168 config ARCH_NO_VIRT_TO_BUS
 169         def_bool y
 170
 171 config ARCH_HAS_DEFAULT_IDLE
 172         def_bool y
 173
 174 config ARCH_HAS_CPU_IDLE_WAIT
 175         def_bool y
 176
 177 config NO_IOPORT
 178         bool
 179
 180 config IO_TRAPPED
 181         bool
 182
 183 config DMA_COHERENT
 184         bool
 185
 186 config DMA_NONCOHERENT
 187         def_bool !DMA_COHERENT
 188
 189 config NEED_DMA_MAP_STATE
 190         def_bool DMA_NONCOHERENT
 191
 192 config NEED_SG_DMA_LENGTH
 193         def_bool y
 194
 195 source "init/Kconfig"
 196
 197 source "kernel/Kconfig.freezer"
 198
 199 menu "System type"
 200
 201 #
 202 # Processor families
 203 #
 204 config CPU_SH2
 205         bool
 206
 207 config CPU_SH2A
 208         bool
 209         select CPU_SH2
 210
 211 config CPU_SH3
 212         bool
 213         select CPU_HAS_INTEVT
 214         select CPU_HAS_SR_RB
 215         select SYS_SUPPORTS_TMU
 216
 217 config CPU_SH4
 218         bool
 219         select CPU_HAS_INTEVT
 220         select CPU_HAS_SR_RB
 221         select CPU_HAS_FPU if !CPU_SH4AL_DSP
 222         select SYS_SUPPORTS_TMU
 223         select SYS_SUPPORTS_HUGETLBFS if MMU
 224
 225 config CPU_SH4A
 226         bool
 227         select CPU_SH4
 228
 229 config CPU_SH4AL_DSP
 230         bool
 231         select CPU_SH4A
 232         select CPU_HAS_DSP
 233
 234 config CPU_SH5
 235         bool
 236         select CPU_HAS_FPU
 237         select SYS_SUPPORTS_TMU
 238         select SYS_SUPPORTS_HUGETLBFS if MMU
 239
 240 config CPU_SHX2
 241         bool
 242
 243 config CPU_SHX3
 244         bool
 245         select DMA_COHERENT
 246         select SYS_SUPPORTS_SMP
 247         select SYS_SUPPORTS_NUMA
 248
 249 config ARCH_SHMOBILE
 250         bool
 251         select ARCH_SUSPEND_POSSIBLE
 252         select PM
 253         select PM_RUNTIME
 254
 255 if SUPERH32
 256
 257 choice
 258         prompt "Processor sub-type selection"
 259
 260 #
 261 # Processor subtypes
 262 #
 263
 264 # SH-2 Processor Support
 265
 266 config CPU_SUBTYPE_SH7619
 267         bool "Support SH7619 processor"
 268         select CPU_SH2
 269         select SYS_SUPPORTS_CMT
 270
 271 # SH-2A Processor Support
 272
 273 config CPU_SUBTYPE_SH7201
 274         bool "Support SH7201 processor"
 275         select CPU_SH2A
 276         select CPU_HAS_FPU
 277         select SYS_SUPPORTS_MTU2
 278
 279 config CPU_SUBTYPE_SH7203
 280         bool "Support SH7203 processor"
 281         select CPU_SH2A
 282         select CPU_HAS_FPU
 283         select SYS_SUPPORTS_CMT
 284         select SYS_SUPPORTS_MTU2
 285
 286 config CPU_SUBTYPE_SH7206
 287         bool "Support SH7206 processor"
 288         select CPU_SH2A
 289         select SYS_SUPPORTS_CMT
 290         select SYS_SUPPORTS_MTU2
 291
 292 config CPU_SUBTYPE_SH7263
 293         bool "Support SH7263 processor"
 294         select CPU_SH2A
 295         select CPU_HAS_FPU
 296         select SYS_SUPPORTS_CMT
 297         select SYS_SUPPORTS_MTU2
 298
 299 config CPU_SUBTYPE_MXG
 300         bool "Support MX-G processor"
 301         select CPU_SH2A
 302         select SYS_SUPPORTS_MTU2
 303         help
 304           Select MX-G if running on an R8A03022BG part.
 305
 306 # SH-3 Processor Support
 307
 308 config CPU_SUBTYPE_SH7705
 309         bool "Support SH7705 processor"
 310         select CPU_SH3
 311
 312 config CPU_SUBTYPE_SH7706
 313         bool "Support SH7706 processor"
 314         select CPU_SH3
 315         help
 316           Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
 317
 318 config CPU_SUBTYPE_SH7707
 319         bool "Support SH7707 processor"
 320         select CPU_SH3
 321         help
 322           Select SH7707 if you have a  60 Mhz SH-3 HD6417707 CPU.
 323
 324 config CPU_SUBTYPE_SH7708
 325         bool "Support SH7708 processor"
 326         select CPU_SH3
 327         help
 328           Select SH7708 if you have a  60 Mhz SH-3 HD6417708S or
 329           if you have a 100 Mhz SH-3 HD6417708R CPU.
 330
 331 config CPU_SUBTYPE_SH7709
 332         bool "Support SH7709 processor"
 333         select CPU_SH3
 334         help
 335           Select SH7709 if you have a  80 Mhz SH-3 HD6417709 CPU.
 336
 337 config CPU_SUBTYPE_SH7710
 338         bool "Support SH7710 processor"
 339         select CPU_SH3
 340         select CPU_HAS_DSP
 341         help
 342           Select SH7710 if you have a SH3-DSP SH7710 CPU.
 343
 344 config CPU_SUBTYPE_SH7712
 345         bool "Support SH7712 processor"
 346         select CPU_SH3
 347         select CPU_HAS_DSP
 348         help
 349           Select SH7712 if you have a SH3-DSP SH7712 CPU.
 350
 351 config CPU_SUBTYPE_SH7720
 352         bool "Support SH7720 processor"
 353         select CPU_SH3
 354         select CPU_HAS_DSP
 355         select SYS_SUPPORTS_CMT
 356         help
 357           Select SH7720 if you have a SH3-DSP SH7720 CPU.
 358
 359 config CPU_SUBTYPE_SH7721
 360         bool "Support SH7721 processor"
 361         select CPU_SH3
 362         select CPU_HAS_DSP
 363         select SYS_SUPPORTS_CMT
 364         help
 365           Select SH7721 if you have a SH3-DSP SH7721 CPU.
 366
 367 # SH-4 Processor Support
 368
 369 config CPU_SUBTYPE_SH7750
 370         bool "Support SH7750 processor"
 371         select CPU_SH4
 372         help
 373           Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
 374
 375 config CPU_SUBTYPE_SH7091
 376         bool "Support SH7091 processor"
 377         select CPU_SH4
 378         help
 379           Select SH7091 if you have an SH-4 based Sega device (such as
 380           the Dreamcast, Naomi, and Naomi 2).
 381
 382 config CPU_SUBTYPE_SH7750R
 383         bool "Support SH7750R processor"
 384         select CPU_SH4
 385
 386 config CPU_SUBTYPE_SH7750S
 387         bool "Support SH7750S processor"
 388         select CPU_SH4
 389
 390 config CPU_SUBTYPE_SH7751
 391         bool "Support SH7751 processor"
 392         select CPU_SH4
 393         help
 394           Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
 395           or if you have a HD6417751R CPU.
 396
 397 config CPU_SUBTYPE_SH7751R
 398         bool "Support SH7751R processor"
 399         select CPU_SH4
 400
 401 config CPU_SUBTYPE_SH7760
 402         bool "Support SH7760 processor"
 403         select CPU_SH4
 404
 405 config CPU_SUBTYPE_SH4_202
 406         bool "Support SH4-202 processor"
 407         select CPU_SH4
 408
 409 # SH-4A Processor Support
 410
 411 config CPU_SUBTYPE_SH7723
 412         bool "Support SH7723 processor"
 413         select CPU_SH4A
 414         select CPU_SHX2
 415         select ARCH_SHMOBILE
 416         select ARCH_SPARSEMEM_ENABLE
 417         select SYS_SUPPORTS_CMT
 418         help
 419           Select SH7723 if you have an SH-MobileR2 CPU.
 420
 421 config CPU_SUBTYPE_SH7724
 422         bool "Support SH7724 processor"
 423         select CPU_SH4A
 424         select CPU_SHX2
 425         select ARCH_SHMOBILE
 426         select ARCH_SPARSEMEM_ENABLE
 427         select SYS_SUPPORTS_CMT
 428         help
 429           Select SH7724 if you have an SH-MobileR2R CPU.
 430
 431 config CPU_SUBTYPE_SH7757
 432         bool "Support SH7757 processor"
 433         select CPU_SH4A
 434         select CPU_SHX2
 435         help
 436           Select SH7757 if you have a SH4A SH7757 CPU.
 437
 438 config CPU_SUBTYPE_SH7763
 439         bool "Support SH7763 processor"
 440         select CPU_SH4A
 441         help
 442           Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
 443
 444 config CPU_SUBTYPE_SH7770
 445         bool "Support SH7770 processor"
 446         select CPU_SH4A
 447
 448 config CPU_SUBTYPE_SH7780
 449         bool "Support SH7780 processor"
 450         select CPU_SH4A
 451
 452 config CPU_SUBTYPE_SH7785
 453         bool "Support SH7785 processor"
 454         select CPU_SH4A
 455         select CPU_SHX2
 456         select ARCH_SPARSEMEM_ENABLE
 457         select SYS_SUPPORTS_NUMA
 458
 459 config CPU_SUBTYPE_SH7786
 460         bool "Support SH7786 processor"
 461         select CPU_SH4A
 462         select CPU_SHX3
 463         select CPU_HAS_PTEAEX
 464         select GENERIC_CLOCKEVENTS_BROADCAST if SMP
 465
 466 config CPU_SUBTYPE_SHX3
 467         bool "Support SH-X3 processor"
 468         select CPU_SH4A
 469         select CPU_SHX3
 470         select GENERIC_CLOCKEVENTS_BROADCAST if SMP
 471
 472 # SH4AL-DSP Processor Support
 473
 474 config CPU_SUBTYPE_SH7343
 475         bool "Support SH7343 processor"
 476         select CPU_SH4AL_DSP
 477         select ARCH_SHMOBILE
 478         select SYS_SUPPORTS_CMT
 479
 480 config CPU_SUBTYPE_SH7722
 481         bool "Support SH7722 processor"
 482         select CPU_SH4AL_DSP
 483         select CPU_SHX2
 484         select ARCH_SHMOBILE
 485         select ARCH_SPARSEMEM_ENABLE
 486         select SYS_SUPPORTS_NUMA
 487         select SYS_SUPPORTS_CMT
 488
 489 config CPU_SUBTYPE_SH7366
 490         bool "Support SH7366 processor"
 491         select CPU_SH4AL_DSP
 492         select CPU_SHX2
 493         select ARCH_SHMOBILE
 494         select ARCH_SPARSEMEM_ENABLE
 495         select SYS_SUPPORTS_NUMA
 496         select SYS_SUPPORTS_CMT
 497
 498 endchoice
 499
 500 endif
 501
 502 if SUPERH64
 503
 504 choice
 505         prompt "Processor sub-type selection"
 506
 507 # SH-5 Processor Support
 508
 509 config CPU_SUBTYPE_SH5_101
 510         bool "Support SH5-101 processor"
 511         select CPU_SH5
 512
 513 config CPU_SUBTYPE_SH5_103
 514         bool "Support SH5-103 processor"
 515         select CPU_SH5
 516
 517 endchoice
 518
 519 endif
 520
 521 source "arch/sh/mm/Kconfig"
 522
 523 source "arch/sh/Kconfig.cpu"
 524
 525 source "arch/sh/boards/Kconfig"
 526
 527 menu "Timer and clock configuration"
 528
 529 config SH_TIMER_TMU
 530         bool "TMU timer driver"
 531         depends on SYS_SUPPORTS_TMU
 532         default y
 533         help
 534           This enables the build of the TMU timer driver.
 535
 536 config SH_TIMER_CMT
 537         bool "CMT timer driver"
 538         depends on SYS_SUPPORTS_CMT
 539         default y
 540         help
 541           This enables build of the CMT timer driver.
 542
 543 config SH_TIMER_MTU2
 544         bool "MTU2 timer driver"
 545         depends on SYS_SUPPORTS_MTU2
 546         default y
 547         help
 548           This enables build of the MTU2 timer driver.
 549
 550 config SH_PCLK_FREQ
 551         int "Peripheral clock frequency (in Hz)"
 552         depends on SH_CLK_CPG_LEGACY
 553         default "31250000" if CPU_SUBTYPE_SH7619
 554         default "33333333" if CPU_SUBTYPE_SH7770 || \
 555                               CPU_SUBTYPE_SH7760 || \
 556                               CPU_SUBTYPE_SH7705 || \
 557                               CPU_SUBTYPE_SH7203 || \
 558                               CPU_SUBTYPE_SH7206 || \
 559                               CPU_SUBTYPE_SH7263 || \
 560                               CPU_SUBTYPE_MXG
 561         default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
 562         default "66000000" if CPU_SUBTYPE_SH4_202
 563         default "50000000"
 564         help
 565           This option is used to specify the peripheral clock frequency.
 566           This is necessary for determining the reference clock value on
 567           platforms lacking an RTC.
 568
 569 config SH_CLK_CPG
 570         def_bool y
 571
 572 config SH_CLK_CPG_LEGACY
 573         depends on SH_CLK_CPG
 574         def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \
 575                       !CPU_SUBTYPE_SH7786
 576
 577 config SH_CLK_MD
 578         int "CPU Mode Pin Setting"
 579         depends on CPU_SH2
 580         default 6 if CPU_SUBTYPE_SH7206
 581         default 5 if CPU_SUBTYPE_SH7619
 582         default 0
 583         help
 584           MD2 - MD0 pin setting.
 585
 586 source "kernel/time/Kconfig"
 587
 588 endmenu
 589
 590 menu "CPU Frequency scaling"
 591
 592 source "drivers/cpufreq/Kconfig"
 593
 594 config SH_CPU_FREQ
 595         tristate "SuperH CPU Frequency driver"
 596         depends on CPU_FREQ
 597         select CPU_FREQ_TABLE
 598         help
 599           This adds the cpufreq driver for SuperH. Any CPU that supports
 600           clock rate rounding through the clock framework can use this
 601           driver. While it will make the kernel slightly larger, this is
 602           harmless for CPUs that don't support rate rounding. The driver
 603           will also generate a notice in the boot log before disabling
 604           itself if the CPU in question is not capable of rate rounding.
 605
 606           For details, take a look at <file:Documentation/cpu-freq>.
 607
 608           If unsure, say N.
 609
 610 endmenu
 611
 612 source "arch/sh/drivers/Kconfig"
 613
 614 endmenu
 615
 616 menu "Kernel features"
 617
 618 source kernel/Kconfig.hz
 619
 620 config KEXEC
 621         bool "kexec system call (EXPERIMENTAL)"
 622         depends on SUPERH32 && EXPERIMENTAL && MMU
 623         help
 624           kexec is a system call that implements the ability to shutdown your
 625           current kernel, and to start another kernel.  It is like a reboot
 626           but it is independent of the system firmware.  And like a reboot
 627           you can start any kernel with it, not just Linux.
 628
 629           The name comes from the similarity to the exec system call.
 630
 631           It is an ongoing process to be certain the hardware in a machine
 632           is properly shutdown, so do not be surprised if this code does not
 633           initially work for you.  It may help to enable device hotplugging
 634           support.  As of this writing the exact hardware interface is
 635           strongly in flux, so no good recommendation can be made.
 636
 637 config CRASH_DUMP
 638         bool "kernel crash dumps (EXPERIMENTAL)"
 639         depends on SUPERH32 && EXPERIMENTAL && BROKEN_ON_SMP
 640         help
 641           Generate crash dump after being started by kexec.
 642           This should be normally only set in special crash dump kernels
 643           which are loaded in the main kernel with kexec-tools into
 644           a specially reserved region and then later executed after
 645           a crash by kdump/kexec. The crash dump kernel must be compiled
 646           to a memory address not used by the main kernel using
 647           MEMORY_START.
 648
 649           For more details see Documentation/kdump/kdump.txt
 650
 651 config KEXEC_JUMP
 652         bool "kexec jump (EXPERIMENTAL)"
 653         depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL
 654         help
 655           Jump between original kernel and kexeced kernel and invoke
 656           code via KEXEC
 657
 658 config SECCOMP
 659         bool "Enable seccomp to safely compute untrusted bytecode"
 660         depends on PROC_FS
 661         help
 662           This kernel feature is useful for number crunching applications
 663           that may need to compute untrusted bytecode during their
 664           execution. By using pipes or other transports made available to
 665           the process as file descriptors supporting the read/write
 666           syscalls, it's possible to isolate those applications in
 667           their own address space using seccomp. Once seccomp is
 668           enabled via prctl, it cannot be disabled and the task is only
 669           allowed to execute a few safe syscalls defined by each seccomp
 670           mode.
 671
 672           If unsure, say N.
 673
 674 config SMP
 675         bool "Symmetric multi-processing support"
 676         depends on SYS_SUPPORTS_SMP
 677         select USE_GENERIC_SMP_HELPERS
 678         ---help---
 679           This enables support for systems with more than one CPU. If you have
 680           a system with only one CPU, like most personal computers, say N. If
 681           you have a system with more than one CPU, say Y.
 682
 683           If you say N here, the kernel will run on single and multiprocessor
 684           machines, but will use only one CPU of a multiprocessor machine. If
 685           you say Y here, the kernel will run on many, but not all,
 686           singleprocessor machines. On a singleprocessor machine, the kernel
 687           will run faster if you say N here.
 688
 689           People using multiprocessor machines who say Y here should also say
 690           Y to "Enhanced Real Time Clock Support", below.
 691
 692           See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
 693           available at <http://www.tldp.org/docs.html#howto>.
 694
 695           If you don't know what to do here, say N.
 696
 697 config NR_CPUS
 698         int "Maximum number of CPUs (2-32)"
 699         range 2 32
 700         depends on SMP
 701         default "4" if CPU_SUBTYPE_SHX3
 702         default "2"
 703         help
 704           This allows you to specify the maximum number of CPUs which this
 705           kernel will support.  The maximum supported value is 32 and the
 706           minimum value which makes sense is 2.
 707
 708           This is purely to save memory - each supported CPU adds
 709           approximately eight kilobytes to the kernel image.
 710
 711 config HOTPLUG_CPU
 712         bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
 713         depends on SMP && HOTPLUG && EXPERIMENTAL
 714         help
 715           Say Y here to experiment with turning CPUs off and on.  CPUs
 716           can be controlled through /sys/devices/system/cpu.
 717
 718 source "kernel/Kconfig.preempt"
 719
 720 config GUSA
 721         def_bool y
 722         depends on !SMP && SUPERH32
 723         help
 724           This enables support for gUSA (general UserSpace Atomicity).
 725           This is the default implementation for both UP and non-ll/sc
 726           CPUs, and is used by the libc, amongst others.
 727
 728           For additional information, design information can be found
 729           in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
 730
 731           This should only be disabled for special cases where alternate
 732           atomicity implementations exist.
 733
 734 config GUSA_RB
 735         bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
 736         depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
 737         help
 738           Enabling this option will allow the kernel to implement some
 739           atomic operations using a software implementation of load-locked/
 740           store-conditional (LLSC). On machines which do not have hardware
 741           LLSC, this should be more efficient than the other alternative of
 742           disabling interrupts around the atomic sequence.
 743
 744 source "drivers/sh/Kconfig"
 745
 746 endmenu
 747
 748 menu "Boot options"
 749
 750 config ZERO_PAGE_OFFSET
 751         hex
 752         default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
 753                                 SH_7751_SOLUTION_ENGINE
 754         default "0x00004000" if PAGE_SIZE_16KB || SH_SH03
 755         default "0x00002000" if PAGE_SIZE_8KB
 756         default "0x00001000"
 757         help
 758           This sets the default offset of zero page.
 759
 760 config BOOT_LINK_OFFSET
 761         hex
 762         default "0x00210000" if SH_SHMIN
 763         default "0x00400000" if SH_CAYMAN
 764         default "0x00810000" if SH_7780_SOLUTION_ENGINE
 765         default "0x009e0000" if SH_TITAN
 766         default "0x01800000" if SH_SDK7780
 767         default "0x02000000" if SH_EDOSK7760
 768         default "0x00800000"
 769         help
 770           This option allows you to set the link address offset of the zImage.
 771           This can be useful if you are on a board which has a small amount of
 772           memory.
 773
 774 config ENTRY_OFFSET
 775         hex
 776         default "0x00001000" if PAGE_SIZE_4KB
 777         default "0x00002000" if PAGE_SIZE_8KB
 778         default "0x00004000" if PAGE_SIZE_16KB
 779         default "0x00010000" if PAGE_SIZE_64KB
 780         default "0x00000000"
 781
 782 config ROMIMAGE_MMCIF
 783         bool "Include MMCIF loader in romImage (EXPERIMENTAL)"
 784         depends on CPU_SUBTYPE_SH7724 && EXPERIMENTAL
 785         help
 786           Say Y here to include experimental MMCIF loading code in
 787           romImage. With this enabled it is possible to write the romImage
 788           kernel image to an MMC card and boot the kernel straight from
 789           the reset vector. At reset the processor Mask ROM will load the
 790           first part of the romImage which in turn loads the rest the kernel
 791           image to RAM using the MMCIF hardware block.
 792
 793 choice
 794         prompt "Kernel command line"
 795         optional
 796         default CMDLINE_OVERWRITE
 797         help
 798           Setting this option allows the kernel command line arguments
 799           to be set.
 800
 801 config CMDLINE_OVERWRITE
 802         bool "Overwrite bootloader kernel arguments"
 803         help
 804           Given string will overwrite any arguments passed in by
 805           a bootloader.
 806
 807 config CMDLINE_EXTEND
 808         bool "Extend bootloader kernel arguments"
 809         help
 810           Given string will be concatenated with arguments passed in
 811           by a bootloader.
 812
 813 endchoice
 814
 815 config CMDLINE
 816         string "Kernel command line arguments string"
 817         depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
 818         default "console=ttySC1,115200"
 819
 820 endmenu
 821
 822 menu "Bus options"
 823
 824 config SUPERHYWAY
 825         tristate "SuperHyway Bus support"
 826         depends on CPU_SUBTYPE_SH4_202
 827
 828 config MAPLE
 829         bool "Maple Bus support"
 830         depends on SH_DREAMCAST
 831         help
 832          The Maple Bus is SEGA's serial communication bus for peripherals
 833          on the Dreamcast. Without this bus support you won't be able to
 834          get your Dreamcast keyboard etc to work, so most users
 835          probably want to say 'Y' here, unless you are only using the
 836          Dreamcast with a serial line terminal or a remote network
 837          connection.
 838
 839 config PCI
 840         bool "PCI support"
 841         depends on SYS_SUPPORTS_PCI
 842         select PCI_DOMAINS
 843         help
 844           Find out whether you have a PCI motherboard. PCI is the name of a
 845           bus system, i.e. the way the CPU talks to the other stuff inside
 846           your box. If you have PCI, say Y, otherwise N.
 847
 848 config PCI_DOMAINS
 849         bool
 850
 851 source "drivers/pci/pcie/Kconfig"
 852
 853 source "drivers/pci/Kconfig"
 854
 855 source "drivers/pcmcia/Kconfig"
 856
 857 source "drivers/pci/hotplug/Kconfig"
 858
 859 endmenu
 860
 861 menu "Executable file formats"
 862
 863 source "fs/Kconfig.binfmt"
 864
 865 endmenu
 866
 867 menu "Power management options (EXPERIMENTAL)"
 868 depends on EXPERIMENTAL
 869
 870 source "kernel/power/Kconfig"
 871
 872 source "drivers/cpuidle/Kconfig"
 873
 874 endmenu
 875
 876 source "net/Kconfig"
 877
 878 source "drivers/Kconfig"
 879
 880 source "fs/Kconfig"
 881
 882 source "arch/sh/Kconfig.debug"
 883
 884 source "security/Kconfig"
 885
 886 source "crypto/Kconfig"
 887
 888 menuconfig VIRTUALIZATION
 889         bool "Virtualization"
 890         default n
 891         ---help---
 892           Say Y here to get to see options for using your Linux host to run other
 893           operating systems inside virtual machines (guests).
 894           This option alone does not add any kernel code.
 895
 896           If you say N, all options in this submenu will be skipped and disabled.
 897
 898 if VIRTUALIZATION
 899
 900 source drivers/virtio/Kconfig
 901
 902 endif # VIRTUALIZATION
 903
 904 source "lib/Kconfig"