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