arch/sh/Kconfig

   1 config SUPERH
   2         def_bool y
   3         select EXPERT
   4         select CLKDEV_LOOKUP
   5         select HAVE_IDE if HAS_IOPORT
   6         select HAVE_MEMBLOCK
   7         select HAVE_MEMBLOCK_NODE_MAP
   8         select ARCH_DISCARD_MEMBLOCK
   9         select HAVE_OPROFILE
  10         select HAVE_GENERIC_DMA_COHERENT
  11         select HAVE_ARCH_TRACEHOOK
  12         select HAVE_DMA_API_DEBUG
  13         select HAVE_DMA_ATTRS
  14         select HAVE_IRQ_WORK
  15         select HAVE_PERF_EVENTS
  16         select HAVE_DEBUG_BUGVERBOSE
  17         select ARCH_HAVE_CUSTOM_GPIO_H
  18         select ARCH_HAVE_NMI_SAFE_CMPXCHG if (GUSA_RB || CPU_SH4A)
  19         select PERF_USE_VMALLOC
  20         select HAVE_DEBUG_KMEMLEAK
  21         select HAVE_KERNEL_GZIP
  22         select HAVE_KERNEL_BZIP2
  23         select HAVE_KERNEL_LZMA
  24         select HAVE_KERNEL_XZ
  25         select HAVE_KERNEL_LZO
  26         select HAVE_UID16
  27         select ARCH_WANT_IPC_PARSE_VERSION
  28         select HAVE_SYSCALL_TRACEPOINTS
  29         select HAVE_REGS_AND_STACK_ACCESS_API
  30         select HAVE_GENERIC_HARDIRQS
  31         select MAY_HAVE_SPARSE_IRQ
  32         select IRQ_FORCED_THREADING
  33         select RTC_LIB
  34         select GENERIC_ATOMIC64
  35         select GENERIC_IRQ_SHOW
  36         select GENERIC_SMP_IDLE_THREAD
  37         select GENERIC_CLOCKEVENTS
  38         select GENERIC_CMOS_UPDATE if SH_SH03 || SH_DREAMCAST
  39         select GENERIC_STRNCPY_FROM_USER
  40         select GENERIC_STRNLEN_USER
  41         select HAVE_MOD_ARCH_SPECIFIC if DWARF_UNWINDER
  42         select MODULES_USE_ELF_RELA
  43         help
  44           The SuperH is a RISC processor targeted for use in embedded systems
  45           and consumer electronics; it was also used in the Sega Dreamcast
  46           gaming console.  The SuperH port has a home page at
  47           <http://www.linux-sh.org/>.
  48
  49 config SUPERH32
  50         def_bool ARCH = "sh"
  51         select HAVE_KPROBES
  52         select HAVE_KRETPROBES
  53         select HAVE_IOREMAP_PROT if MMU && !X2TLB
  54         select HAVE_FUNCTION_TRACER
  55         select HAVE_FTRACE_MCOUNT_RECORD
  56         select HAVE_DYNAMIC_FTRACE
  57         select HAVE_FUNCTION_TRACE_MCOUNT_TEST
  58         select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE
  59         select ARCH_WANT_IPC_PARSE_VERSION
  60         select HAVE_FUNCTION_GRAPH_TRACER
  61         select HAVE_ARCH_KGDB
  62         select HAVE_HW_BREAKPOINT
  63         select HAVE_MIXED_BREAKPOINTS_REGS
  64         select PERF_EVENTS
  65         select ARCH_HIBERNATION_POSSIBLE if MMU
  66         select SPARSE_IRQ
  67
  68 config SUPERH64
  69         def_bool ARCH = "sh64"
  70         select KALLSYMS
  71
  72 config ARCH_DEFCONFIG
  73         string
  74         default "arch/sh/configs/shx3_defconfig" if SUPERH32
  75         default "arch/sh/configs/cayman_defconfig" if SUPERH64
  76
  77 config RWSEM_GENERIC_SPINLOCK
  78         def_bool y
  79
  80 config RWSEM_XCHGADD_ALGORITHM
  81         bool
  82
  83 config GENERIC_BUG
  84         def_bool y
  85         depends on BUG && SUPERH32
  86
  87 config GENERIC_CSUM
  88         def_bool y
  89         depends on SUPERH64
  90
  91 config GENERIC_HWEIGHT
  92         def_bool y
  93
  94 config IRQ_PER_CPU
  95         def_bool y
  96
  97 config GENERIC_GPIO
  98         def_bool n
  99
 100 config GENERIC_CALIBRATE_DELAY
 101         bool
 102
 103 config GENERIC_LOCKBREAK
 104         def_bool y
 105         depends on SMP && PREEMPT
 106
 107 config ARCH_SUSPEND_POSSIBLE
 108         def_bool n
 109
 110 config ARCH_HIBERNATION_POSSIBLE
 111         def_bool n
 112
 113 config SYS_SUPPORTS_APM_EMULATION
 114         bool
 115         select ARCH_SUSPEND_POSSIBLE
 116
 117 config SYS_SUPPORTS_HUGETLBFS
 118         bool
 119
 120 config SYS_SUPPORTS_SMP
 121         bool
 122
 123 config SYS_SUPPORTS_NUMA
 124         bool
 125
 126 config SYS_SUPPORTS_PCI
 127         bool
 128
 129 config SYS_SUPPORTS_CMT
 130         bool
 131
 132 config SYS_SUPPORTS_MTU2
 133         bool
 134
 135 config SYS_SUPPORTS_TMU
 136         bool
 137
 138 config STACKTRACE_SUPPORT
 139         def_bool y
 140
 141 config LOCKDEP_SUPPORT
 142         def_bool y
 143
 144 config HAVE_LATENCYTOP_SUPPORT
 145         def_bool y
 146
 147 config ARCH_HAS_ILOG2_U32
 148         def_bool n
 149
 150 config ARCH_HAS_ILOG2_U64
 151         def_bool n
 152
 153 config ARCH_NO_VIRT_TO_BUS
 154         def_bool y
 155
 156 config ARCH_HAS_DEFAULT_IDLE
 157         def_bool y
 158
 159 config NO_IOPORT
 160         def_bool !PCI
 161         depends on !SH_CAYMAN && !SH_SH4202_MICRODEV && !SH_SHMIN && \
 162                    !SH_HP6XX && !SH_SOLUTION_ENGINE
 163
 164 config IO_TRAPPED
 165         bool
 166
 167 config SWAP_IO_SPACE
 168         bool
 169
 170 config DMA_COHERENT
 171         bool
 172
 173 config DMA_NONCOHERENT
 174         def_bool !DMA_COHERENT
 175
 176 config NEED_DMA_MAP_STATE
 177         def_bool DMA_NONCOHERENT
 178
 179 config NEED_SG_DMA_LENGTH
 180         def_bool y
 181
 182 source "init/Kconfig"
 183
 184 source "kernel/Kconfig.freezer"
 185
 186 menu "System type"
 187
 188 #
 189 # Processor families
 190 #
 191 config CPU_SH2
 192         bool
 193
 194 config CPU_SH2A
 195         bool
 196         select CPU_SH2
 197         select UNCACHED_MAPPING
 198
 199 config CPU_SH3
 200         bool
 201         select CPU_HAS_INTEVT
 202         select CPU_HAS_SR_RB
 203         select SYS_SUPPORTS_TMU
 204
 205 config CPU_SH4
 206         bool
 207         select CPU_HAS_INTEVT
 208         select CPU_HAS_SR_RB
 209         select CPU_HAS_FPU if !CPU_SH4AL_DSP
 210         select SYS_SUPPORTS_TMU
 211         select SYS_SUPPORTS_HUGETLBFS if MMU
 212
 213 config CPU_SH4A
 214         bool
 215         select CPU_SH4
 216
 217 config CPU_SH4AL_DSP
 218         bool
 219         select CPU_SH4A
 220         select CPU_HAS_DSP
 221
 222 config CPU_SH5
 223         bool
 224         select CPU_HAS_FPU
 225         select SYS_SUPPORTS_TMU
 226         select SYS_SUPPORTS_HUGETLBFS if MMU
 227
 228 config CPU_SHX2
 229         bool
 230
 231 config CPU_SHX3
 232         bool
 233         select DMA_COHERENT
 234         select SYS_SUPPORTS_SMP
 235         select SYS_SUPPORTS_NUMA
 236
 237 config ARCH_SHMOBILE
 238         bool
 239         select ARCH_SUSPEND_POSSIBLE
 240         select PM
 241         select PM_RUNTIME
 242
 243 config CPU_HAS_PMU
 244        depends on CPU_SH4 || CPU_SH4A
 245        default y
 246        bool
 247
 248 if SUPERH32
 249
 250 choice
 251         prompt "Processor sub-type selection"
 252
 253 #
 254 # Processor subtypes
 255 #
 256
 257 # SH-2 Processor Support
 258
 259 config CPU_SUBTYPE_SH7619
 260         bool "Support SH7619 processor"
 261         select CPU_SH2
 262         select SYS_SUPPORTS_CMT
 263
 264 # SH-2A Processor Support
 265
 266 config CPU_SUBTYPE_SH7201
 267         bool "Support SH7201 processor"
 268         select CPU_SH2A
 269         select CPU_HAS_FPU
 270         select SYS_SUPPORTS_MTU2
 271
 272 config CPU_SUBTYPE_SH7203
 273         bool "Support SH7203 processor"
 274         select CPU_SH2A
 275         select CPU_HAS_FPU
 276         select SYS_SUPPORTS_CMT
 277         select SYS_SUPPORTS_MTU2
 278         select ARCH_WANT_OPTIONAL_GPIOLIB
 279
 280 config CPU_SUBTYPE_SH7206
 281         bool "Support SH7206 processor"
 282         select CPU_SH2A
 283         select SYS_SUPPORTS_CMT
 284         select SYS_SUPPORTS_MTU2
 285
 286 config CPU_SUBTYPE_SH7263
 287         bool "Support SH7263 processor"
 288         select CPU_SH2A
 289         select CPU_HAS_FPU
 290         select SYS_SUPPORTS_CMT
 291         select SYS_SUPPORTS_MTU2
 292
 293 config CPU_SUBTYPE_SH7264
 294         bool "Support SH7264 processor"
 295         select CPU_SH2A
 296         select CPU_HAS_FPU
 297         select SYS_SUPPORTS_CMT
 298         select SYS_SUPPORTS_MTU2
 299
 300 config CPU_SUBTYPE_SH7269
 301         bool "Support SH7269 processor"
 302         select CPU_SH2A
 303         select CPU_HAS_FPU
 304         select SYS_SUPPORTS_CMT
 305         select SYS_SUPPORTS_MTU2
 306
 307 config CPU_SUBTYPE_MXG
 308         bool "Support MX-G processor"
 309         select CPU_SH2A
 310         select SYS_SUPPORTS_MTU2
 311         help
 312           Select MX-G if running on an R8A03022BG part.
 313
 314 # SH-3 Processor Support
 315
 316 config CPU_SUBTYPE_SH7705
 317         bool "Support SH7705 processor"
 318         select CPU_SH3
 319
 320 config CPU_SUBTYPE_SH7706
 321         bool "Support SH7706 processor"
 322         select CPU_SH3
 323         help
 324           Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
 325
 326 config CPU_SUBTYPE_SH7707
 327         bool "Support SH7707 processor"
 328         select CPU_SH3
 329         help
 330           Select SH7707 if you have a  60 Mhz SH-3 HD6417707 CPU.
 331
 332 config CPU_SUBTYPE_SH7708
 333         bool "Support SH7708 processor"
 334         select CPU_SH3
 335         help
 336           Select SH7708 if you have a  60 Mhz SH-3 HD6417708S or
 337           if you have a 100 Mhz SH-3 HD6417708R CPU.
 338
 339 config CPU_SUBTYPE_SH7709
 340         bool "Support SH7709 processor"
 341         select CPU_SH3
 342         help
 343           Select SH7709 if you have a  80 Mhz SH-3 HD6417709 CPU.
 344
 345 config CPU_SUBTYPE_SH7710
 346         bool "Support SH7710 processor"
 347         select CPU_SH3
 348         select CPU_HAS_DSP
 349         help
 350           Select SH7710 if you have a SH3-DSP SH7710 CPU.
 351
 352 config CPU_SUBTYPE_SH7712
 353         bool "Support SH7712 processor"
 354         select CPU_SH3
 355         select CPU_HAS_DSP
 356         help
 357           Select SH7712 if you have a SH3-DSP SH7712 CPU.
 358
 359 config CPU_SUBTYPE_SH7720
 360         bool "Support SH7720 processor"
 361         select CPU_SH3
 362         select CPU_HAS_DSP
 363         select SYS_SUPPORTS_CMT
 364         select ARCH_WANT_OPTIONAL_GPIOLIB
 365         select USB_ARCH_HAS_OHCI
 366         select USB_OHCI_SH if USB_OHCI_HCD
 367         help
 368           Select SH7720 if you have a SH3-DSP SH7720 CPU.
 369
 370 config CPU_SUBTYPE_SH7721
 371         bool "Support SH7721 processor"
 372         select CPU_SH3
 373         select CPU_HAS_DSP
 374         select SYS_SUPPORTS_CMT
 375         select USB_ARCH_HAS_OHCI
 376         select USB_OHCI_SH if USB_OHCI_HCD
 377         help
 378           Select SH7721 if you have a SH3-DSP SH7721 CPU.
 379
 380 # SH-4 Processor Support
 381
 382 config CPU_SUBTYPE_SH7750
 383         bool "Support SH7750 processor"
 384         select CPU_SH4
 385         help
 386           Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
 387
 388 config CPU_SUBTYPE_SH7091
 389         bool "Support SH7091 processor"
 390         select CPU_SH4
 391         help
 392           Select SH7091 if you have an SH-4 based Sega device (such as
 393           the Dreamcast, Naomi, and Naomi 2).
 394
 395 config CPU_SUBTYPE_SH7750R
 396         bool "Support SH7750R processor"
 397         select CPU_SH4
 398
 399 config CPU_SUBTYPE_SH7750S
 400         bool "Support SH7750S processor"
 401         select CPU_SH4
 402
 403 config CPU_SUBTYPE_SH7751
 404         bool "Support SH7751 processor"
 405         select CPU_SH4
 406         help
 407           Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
 408           or if you have a HD6417751R CPU.
 409
 410 config CPU_SUBTYPE_SH7751R
 411         bool "Support SH7751R processor"
 412         select CPU_SH4
 413
 414 config CPU_SUBTYPE_SH7760
 415         bool "Support SH7760 processor"
 416         select CPU_SH4
 417
 418 config CPU_SUBTYPE_SH4_202
 419         bool "Support SH4-202 processor"
 420         select CPU_SH4
 421
 422 # SH-4A Processor Support
 423
 424 config CPU_SUBTYPE_SH7723
 425         bool "Support SH7723 processor"
 426         select CPU_SH4A
 427         select CPU_SHX2
 428         select ARCH_SHMOBILE
 429         select ARCH_SPARSEMEM_ENABLE
 430         select SYS_SUPPORTS_CMT
 431         select ARCH_WANT_OPTIONAL_GPIOLIB
 432         help
 433           Select SH7723 if you have an SH-MobileR2 CPU.
 434
 435 config CPU_SUBTYPE_SH7724
 436         bool "Support SH7724 processor"
 437         select CPU_SH4A
 438         select CPU_SHX2
 439         select ARCH_SHMOBILE
 440         select ARCH_SPARSEMEM_ENABLE
 441         select SYS_SUPPORTS_CMT
 442         select ARCH_WANT_OPTIONAL_GPIOLIB
 443         help
 444           Select SH7724 if you have an SH-MobileR2R CPU.
 445
 446 config CPU_SUBTYPE_SH7734
 447         bool "Support SH7734 processor"
 448         select CPU_SH4A
 449         select CPU_SHX2
 450         select ARCH_WANT_OPTIONAL_GPIOLIB
 451         select USB_ARCH_HAS_OHCI
 452         select USB_ARCH_HAS_EHCI
 453         help
 454           Select SH7734 if you have a SH4A SH7734 CPU.
 455
 456 config CPU_SUBTYPE_SH7757
 457         bool "Support SH7757 processor"
 458         select CPU_SH4A
 459         select CPU_SHX2
 460         select ARCH_WANT_OPTIONAL_GPIOLIB
 461         select USB_ARCH_HAS_OHCI
 462         select USB_ARCH_HAS_EHCI
 463         help
 464           Select SH7757 if you have a SH4A SH7757 CPU.
 465
 466 config CPU_SUBTYPE_SH7763
 467         bool "Support SH7763 processor"
 468         select CPU_SH4A
 469         select USB_ARCH_HAS_OHCI
 470         select USB_OHCI_SH if USB_OHCI_HCD
 471         help
 472           Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
 473
 474 config CPU_SUBTYPE_SH7770
 475         bool "Support SH7770 processor"
 476         select CPU_SH4A
 477
 478 config CPU_SUBTYPE_SH7780
 479         bool "Support SH7780 processor"
 480         select CPU_SH4A
 481
 482 config CPU_SUBTYPE_SH7785
 483         bool "Support SH7785 processor"
 484         select CPU_SH4A
 485         select CPU_SHX2
 486         select ARCH_SPARSEMEM_ENABLE
 487         select SYS_SUPPORTS_NUMA
 488         select ARCH_WANT_OPTIONAL_GPIOLIB
 489
 490 config CPU_SUBTYPE_SH7786
 491         bool "Support SH7786 processor"
 492         select CPU_SH4A
 493         select CPU_SHX3
 494         select CPU_HAS_PTEAEX
 495         select GENERIC_CLOCKEVENTS_BROADCAST if SMP
 496         select ARCH_WANT_OPTIONAL_GPIOLIB
 497         select USB_ARCH_HAS_OHCI
 498         select USB_OHCI_SH if USB_OHCI_HCD
 499         select USB_ARCH_HAS_EHCI
 500         select USB_EHCI_SH if USB_EHCI_HCD
 501
 502 config CPU_SUBTYPE_SHX3
 503         bool "Support SH-X3 processor"
 504         select CPU_SH4A
 505         select CPU_SHX3
 506         select GENERIC_CLOCKEVENTS_BROADCAST if SMP
 507         select ARCH_REQUIRE_GPIOLIB
 508
 509 # SH4AL-DSP Processor Support
 510
 511 config CPU_SUBTYPE_SH7343
 512         bool "Support SH7343 processor"
 513         select CPU_SH4AL_DSP
 514         select ARCH_SHMOBILE
 515         select SYS_SUPPORTS_CMT
 516
 517 config CPU_SUBTYPE_SH7722
 518         bool "Support SH7722 processor"
 519         select CPU_SH4AL_DSP
 520         select CPU_SHX2
 521         select ARCH_SHMOBILE
 522         select ARCH_SPARSEMEM_ENABLE
 523         select SYS_SUPPORTS_NUMA
 524         select SYS_SUPPORTS_CMT
 525         select ARCH_WANT_OPTIONAL_GPIOLIB
 526
 527 config CPU_SUBTYPE_SH7366
 528         bool "Support SH7366 processor"
 529         select CPU_SH4AL_DSP
 530         select CPU_SHX2
 531         select ARCH_SHMOBILE
 532         select ARCH_SPARSEMEM_ENABLE
 533         select SYS_SUPPORTS_NUMA
 534         select SYS_SUPPORTS_CMT
 535
 536 endchoice
 537
 538 endif
 539
 540 if SUPERH64
 541
 542 choice
 543         prompt "Processor sub-type selection"
 544
 545 # SH-5 Processor Support
 546
 547 config CPU_SUBTYPE_SH5_101
 548         bool "Support SH5-101 processor"
 549         select CPU_SH5
 550
 551 config CPU_SUBTYPE_SH5_103
 552         bool "Support SH5-103 processor"
 553         select CPU_SH5
 554
 555 endchoice
 556
 557 endif
 558
 559 source "arch/sh/mm/Kconfig"
 560
 561 source "arch/sh/Kconfig.cpu"
 562
 563 source "arch/sh/boards/Kconfig"
 564
 565 menu "Timer and clock configuration"
 566
 567 config SH_TIMER_TMU
 568         bool "TMU timer driver"
 569         depends on SYS_SUPPORTS_TMU
 570         default y
 571         help
 572           This enables the build of the TMU timer driver.
 573
 574 config SH_TIMER_CMT
 575         bool "CMT timer driver"
 576         depends on SYS_SUPPORTS_CMT
 577         default y
 578         help
 579           This enables build of the CMT timer driver.
 580
 581 config SH_TIMER_MTU2
 582         bool "MTU2 timer driver"
 583         depends on SYS_SUPPORTS_MTU2
 584         default y
 585         help
 586           This enables build of the MTU2 timer driver.
 587
 588 config SH_PCLK_FREQ
 589         int "Peripheral clock frequency (in Hz)"
 590         depends on SH_CLK_CPG_LEGACY
 591         default "31250000" if CPU_SUBTYPE_SH7619
 592         default "33333333" if CPU_SUBTYPE_SH7770 || \
 593                               CPU_SUBTYPE_SH7760 || \
 594                               CPU_SUBTYPE_SH7705 || \
 595                               CPU_SUBTYPE_SH7203 || \
 596                               CPU_SUBTYPE_SH7206 || \
 597                               CPU_SUBTYPE_SH7263 || \
 598                               CPU_SUBTYPE_MXG
 599         default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
 600         default "66000000" if CPU_SUBTYPE_SH4_202
 601         default "50000000"
 602         help
 603           This option is used to specify the peripheral clock frequency.
 604           This is necessary for determining the reference clock value on
 605           platforms lacking an RTC.
 606
 607 config SH_CLK_CPG
 608         def_bool y
 609
 610 config SH_CLK_CPG_LEGACY
 611         depends on SH_CLK_CPG
 612         def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \
 613                       !CPU_SHX3 && !CPU_SUBTYPE_SH7757 && \
 614                       !CPU_SUBTYPE_SH7734 && !CPU_SUBTYPE_SH7264 && \
 615                       !CPU_SUBTYPE_SH7269
 616
 617 endmenu
 618
 619 menu "CPU Frequency scaling"
 620
 621 source "drivers/cpufreq/Kconfig"
 622
 623 config SH_CPU_FREQ
 624         tristate "SuperH CPU Frequency driver"
 625         depends on CPU_FREQ
 626         select CPU_FREQ_TABLE
 627         help
 628           This adds the cpufreq driver for SuperH. Any CPU that supports
 629           clock rate rounding through the clock framework can use this
 630           driver. While it will make the kernel slightly larger, this is
 631           harmless for CPUs that don't support rate rounding. The driver
 632           will also generate a notice in the boot log before disabling
 633           itself if the CPU in question is not capable of rate rounding.
 634
 635           For details, take a look at <file:Documentation/cpu-freq>.
 636
 637           If unsure, say N.
 638
 639 endmenu
 640
 641 source "arch/sh/drivers/Kconfig"
 642
 643 endmenu
 644
 645 menu "Kernel features"
 646
 647 source kernel/Kconfig.hz
 648
 649 config KEXEC
 650         bool "kexec system call (EXPERIMENTAL)"
 651         depends on SUPERH32 && EXPERIMENTAL && MMU
 652         help
 653           kexec is a system call that implements the ability to shutdown your
 654           current kernel, and to start another kernel.  It is like a reboot
 655           but it is independent of the system firmware.  And like a reboot
 656           you can start any kernel with it, not just Linux.
 657
 658           The name comes from the similarity to the exec system call.
 659
 660           It is an ongoing process to be certain the hardware in a machine
 661           is properly shutdown, so do not be surprised if this code does not
 662           initially work for you.  It may help to enable device hotplugging
 663           support.  As of this writing the exact hardware interface is
 664           strongly in flux, so no good recommendation can be made.
 665
 666 config CRASH_DUMP
 667         bool "kernel crash dumps (EXPERIMENTAL)"
 668         depends on SUPERH32 && EXPERIMENTAL && BROKEN_ON_SMP
 669         help
 670           Generate crash dump after being started by kexec.
 671           This should be normally only set in special crash dump kernels
 672           which are loaded in the main kernel with kexec-tools into
 673           a specially reserved region and then later executed after
 674           a crash by kdump/kexec. The crash dump kernel must be compiled
 675           to a memory address not used by the main kernel using
 676           PHYSICAL_START.
 677
 678           For more details see Documentation/kdump/kdump.txt
 679
 680 config KEXEC_JUMP
 681         bool "kexec jump (EXPERIMENTAL)"
 682         depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL
 683         help
 684           Jump between original kernel and kexeced kernel and invoke
 685           code via KEXEC
 686
 687 config PHYSICAL_START
 688         hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP)
 689         default MEMORY_START
 690         ---help---
 691           This gives the physical address where the kernel is loaded
 692           and is ordinarily the same as MEMORY_START.
 693
 694           Different values are primarily used in the case of kexec on panic
 695           where the fail safe kernel needs to run at a different address
 696           than the panic-ed kernel.
 697
 698 config SECCOMP
 699         bool "Enable seccomp to safely compute untrusted bytecode"
 700         depends on PROC_FS
 701         help
 702           This kernel feature is useful for number crunching applications
 703           that may need to compute untrusted bytecode during their
 704           execution. By using pipes or other transports made available to
 705           the process as file descriptors supporting the read/write
 706           syscalls, it's possible to isolate those applications in
 707           their own address space using seccomp. Once seccomp is
 708           enabled via prctl, it cannot be disabled and the task is only
 709           allowed to execute a few safe syscalls defined by each seccomp
 710           mode.
 711
 712           If unsure, say N.
 713
 714 config CC_STACKPROTECTOR
 715         bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)"
 716         depends on SUPERH32 && EXPERIMENTAL
 717         help
 718           This option turns on the -fstack-protector GCC feature. This
 719           feature puts, at the beginning of functions, a canary value on
 720           the stack just before the return address, and validates
 721           the value just before actually returning.  Stack based buffer
 722           overflows (that need to overwrite this return address) now also
 723           overwrite the canary, which gets detected and the attack is then
 724           neutralized via a kernel panic.
 725
 726           This feature requires gcc version 4.2 or above.
 727
 728 config SMP
 729         bool "Symmetric multi-processing support"
 730         depends on SYS_SUPPORTS_SMP
 731         select USE_GENERIC_SMP_HELPERS
 732         ---help---
 733           This enables support for systems with more than one CPU. If you have
 734           a system with only one CPU, like most personal computers, say N. If
 735           you have a system with more than one CPU, say Y.
 736
 737           If you say N here, the kernel will run on single and multiprocessor
 738           machines, but will use only one CPU of a multiprocessor machine. If
 739           you say Y here, the kernel will run on many, but not all,
 740           singleprocessor machines. On a singleprocessor machine, the kernel
 741           will run faster if you say N here.
 742
 743           People using multiprocessor machines who say Y here should also say
 744           Y to "Enhanced Real Time Clock Support", below.
 745
 746           See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
 747           available at <http://www.tldp.org/docs.html#howto>.
 748
 749           If you don't know what to do here, say N.
 750
 751 config NR_CPUS
 752         int "Maximum number of CPUs (2-32)"
 753         range 2 32
 754         depends on SMP
 755         default "4" if CPU_SUBTYPE_SHX3
 756         default "2"
 757         help
 758           This allows you to specify the maximum number of CPUs which this
 759           kernel will support.  The maximum supported value is 32 and the
 760           minimum value which makes sense is 2.
 761
 762           This is purely to save memory - each supported CPU adds
 763           approximately eight kilobytes to the kernel image.
 764
 765 config HOTPLUG_CPU
 766         bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
 767         depends on SMP && HOTPLUG && EXPERIMENTAL
 768         help
 769           Say Y here to experiment with turning CPUs off and on.  CPUs
 770           can be controlled through /sys/devices/system/cpu.
 771
 772 source "kernel/Kconfig.preempt"
 773
 774 config GUSA
 775         def_bool y
 776         depends on !SMP && SUPERH32
 777         help
 778           This enables support for gUSA (general UserSpace Atomicity).
 779           This is the default implementation for both UP and non-ll/sc
 780           CPUs, and is used by the libc, amongst others.
 781
 782           For additional information, design information can be found
 783           in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
 784
 785           This should only be disabled for special cases where alternate
 786           atomicity implementations exist.
 787
 788 config GUSA_RB
 789         bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
 790         depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
 791         help
 792           Enabling this option will allow the kernel to implement some
 793           atomic operations using a software implementation of load-locked/
 794           store-conditional (LLSC). On machines which do not have hardware
 795           LLSC, this should be more efficient than the other alternative of
 796           disabling interrupts around the atomic sequence.
 797
 798 config HW_PERF_EVENTS
 799         bool "Enable hardware performance counter support for perf events"
 800         depends on PERF_EVENTS && CPU_HAS_PMU
 801         default y
 802         help
 803           Enable hardware performance counter support for perf events. If
 804           disabled, perf events will use software events only.
 805
 806 source "drivers/sh/Kconfig"
 807
 808 endmenu
 809
 810 menu "Boot options"
 811
 812 config ZERO_PAGE_OFFSET
 813         hex
 814         default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
 815                                 SH_7751_SOLUTION_ENGINE
 816         default "0x00004000" if PAGE_SIZE_16KB || SH_SH03
 817         default "0x00002000" if PAGE_SIZE_8KB
 818         default "0x00001000"
 819         help
 820           This sets the default offset of zero page.
 821
 822 config BOOT_LINK_OFFSET
 823         hex
 824         default "0x00210000" if SH_SHMIN
 825         default "0x00400000" if SH_CAYMAN
 826         default "0x00810000" if SH_7780_SOLUTION_ENGINE
 827         default "0x009e0000" if SH_TITAN
 828         default "0x01800000" if SH_SDK7780
 829         default "0x02000000" if SH_EDOSK7760
 830         default "0x00800000"
 831         help
 832           This option allows you to set the link address offset of the zImage.
 833           This can be useful if you are on a board which has a small amount of
 834           memory.
 835
 836 config ENTRY_OFFSET
 837         hex
 838         default "0x00001000" if PAGE_SIZE_4KB
 839         default "0x00002000" if PAGE_SIZE_8KB
 840         default "0x00004000" if PAGE_SIZE_16KB
 841         default "0x00010000" if PAGE_SIZE_64KB
 842         default "0x00000000"
 843
 844 config ROMIMAGE_MMCIF
 845         bool "Include MMCIF loader in romImage (EXPERIMENTAL)"
 846         depends on CPU_SUBTYPE_SH7724 && EXPERIMENTAL
 847         help
 848           Say Y here to include experimental MMCIF loading code in
 849           romImage. With this enabled it is possible to write the romImage
 850           kernel image to an MMC card and boot the kernel straight from
 851           the reset vector. At reset the processor Mask ROM will load the
 852           first part of the romImage which in turn loads the rest the kernel
 853           image to RAM using the MMCIF hardware block.
 854
 855 choice
 856         prompt "Kernel command line"
 857         optional
 858         default CMDLINE_OVERWRITE
 859         help
 860           Setting this option allows the kernel command line arguments
 861           to be set.
 862
 863 config CMDLINE_OVERWRITE
 864         bool "Overwrite bootloader kernel arguments"
 865         help
 866           Given string will overwrite any arguments passed in by
 867           a bootloader.
 868
 869 config CMDLINE_EXTEND
 870         bool "Extend bootloader kernel arguments"
 871         help
 872           Given string will be concatenated with arguments passed in
 873           by a bootloader.
 874
 875 endchoice
 876
 877 config CMDLINE
 878         string "Kernel command line arguments string"
 879         depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
 880         default "console=ttySC1,115200"
 881
 882 endmenu
 883
 884 menu "Bus options"
 885
 886 config SUPERHYWAY
 887         tristate "SuperHyway Bus support"
 888         depends on CPU_SUBTYPE_SH4_202
 889
 890 config MAPLE
 891         bool "Maple Bus support"
 892         depends on SH_DREAMCAST
 893         help
 894          The Maple Bus is SEGA's serial communication bus for peripherals
 895          on the Dreamcast. Without this bus support you won't be able to
 896          get your Dreamcast keyboard etc to work, so most users
 897          probably want to say 'Y' here, unless you are only using the
 898          Dreamcast with a serial line terminal or a remote network
 899          connection.
 900
 901 config PCI
 902         bool "PCI support"
 903         depends on SYS_SUPPORTS_PCI
 904         select PCI_DOMAINS
 905         select GENERIC_PCI_IOMAP
 906         select NO_GENERIC_PCI_IOPORT_MAP
 907         help
 908           Find out whether you have a PCI motherboard. PCI is the name of a
 909           bus system, i.e. the way the CPU talks to the other stuff inside
 910           your box. If you have PCI, say Y, otherwise N.
 911
 912 config PCI_DOMAINS
 913         bool
 914
 915 source "drivers/pci/pcie/Kconfig"
 916
 917 source "drivers/pci/Kconfig"
 918
 919 source "drivers/pcmcia/Kconfig"
 920
 921 source "drivers/pci/hotplug/Kconfig"
 922
 923 endmenu
 924
 925 menu "Executable file formats"
 926
 927 source "fs/Kconfig.binfmt"
 928
 929 endmenu
 930
 931 menu "Power management options (EXPERIMENTAL)"
 932 depends on EXPERIMENTAL
 933
 934 source "kernel/power/Kconfig"
 935
 936 source "drivers/cpuidle/Kconfig"
 937
 938 endmenu
 939
 940 source "net/Kconfig"
 941
 942 source "drivers/Kconfig"
 943
 944 source "fs/Kconfig"
 945
 946 source "arch/sh/Kconfig.debug"
 947
 948 source "security/Kconfig"
 949
 950 source "crypto/Kconfig"
 951
 952 source "lib/Kconfig"