1# 2# For a description of the syntax of this configuration file, 3# see Documentation/kbuild/kconfig-language.txt. 4# 5 6mainmenu "Linux/SuperH Kernel Configuration" 7 8config SUPERH 9 def_bool y 10 select EMBEDDED 11 select HAVE_CLK 12 select HAVE_IDE 13 select HAVE_OPROFILE 14 help 15 The SuperH is a RISC processor targeted for use in embedded systems 16 and consumer electronics; it was also used in the Sega Dreamcast 17 gaming console. The SuperH port has a home page at 18 <http://www.linux-sh.org/>. 19 20config SUPERH32 21 def_bool !SUPERH64 22 23config SUPERH64 24 def_bool y if CPU_SH5 25 26config ARCH_DEFCONFIG 27 string 28 default "arch/sh/configs/shx3_defconfig" if SUPERH32 29 default "arch/sh/configs/cayman_defconfig" if SUPERH64 30 31config RWSEM_GENERIC_SPINLOCK 32 def_bool y 33 34config RWSEM_XCHGADD_ALGORITHM 35 bool 36 37config GENERIC_BUG 38 def_bool y 39 depends on BUG && SUPERH32 40 41config GENERIC_FIND_NEXT_BIT 42 def_bool y 43 44config GENERIC_HWEIGHT 45 def_bool y 46 47config GENERIC_HARDIRQS 48 def_bool y 49 50config GENERIC_IRQ_PROBE 51 def_bool y 52 53config GENERIC_CALIBRATE_DELAY 54 def_bool y 55 56config GENERIC_IOMAP 57 bool 58 59config GENERIC_TIME 60 def_bool n 61 62config GENERIC_CLOCKEVENTS 63 def_bool n 64 65config SYS_SUPPORTS_PM 66 bool 67 68config SYS_SUPPORTS_APM_EMULATION 69 bool 70 select SYS_SUPPORTS_PM 71 72config SYS_SUPPORTS_SMP 73 bool 74 75config SYS_SUPPORTS_NUMA 76 bool 77 78config SYS_SUPPORTS_PCI 79 bool 80 81config STACKTRACE_SUPPORT 82 def_bool y 83 84config LOCKDEP_SUPPORT 85 def_bool y 86 87config ARCH_HAS_ILOG2_U32 88 def_bool n 89 90config ARCH_HAS_ILOG2_U64 91 def_bool n 92 93config ARCH_NO_VIRT_TO_BUS 94 def_bool y 95 96config ARCH_SUPPORTS_AOUT 97 def_bool y 98 99config IO_TRAPPED 100 bool 101 102source "init/Kconfig" 103 104menu "System type" 105 106# 107# Processor families 108# 109config CPU_SH2 110 bool 111 112config CPU_SH2A 113 bool 114 select CPU_SH2 115 116config CPU_SH3 117 bool 118 select CPU_HAS_INTEVT 119 select CPU_HAS_SR_RB 120 121config CPU_SH4 122 bool 123 select CPU_HAS_INTEVT 124 select CPU_HAS_SR_RB 125 select CPU_HAS_PTEA if !CPU_SH4A || CPU_SHX2 126 select CPU_HAS_FPU if !CPU_SH4AL_DSP 127 128config CPU_SH4A 129 bool 130 select CPU_SH4 131 132config CPU_SH4AL_DSP 133 bool 134 select CPU_SH4A 135 select CPU_HAS_DSP 136 137config CPU_SH5 138 bool 139 select CPU_HAS_FPU 140 141config CPU_SHX2 142 bool 143 144config CPU_SHX3 145 bool 146 147choice 148 prompt "Processor sub-type selection" 149 150# 151# Processor subtypes 152# 153 154# SH-2 Processor Support 155 156config CPU_SUBTYPE_SH7619 157 bool "Support SH7619 processor" 158 select CPU_SH2 159 160# SH-2A Processor Support 161 162config CPU_SUBTYPE_SH7203 163 bool "Support SH7203 processor" 164 select CPU_SH2A 165 select CPU_HAS_FPU 166 167config CPU_SUBTYPE_SH7206 168 bool "Support SH7206 processor" 169 select CPU_SH2A 170 171config CPU_SUBTYPE_SH7263 172 bool "Support SH7263 processor" 173 select CPU_SH2A 174 select CPU_HAS_FPU 175 176config CPU_SUBTYPE_MXG 177 bool "Support MX-G processor" 178 select CPU_SH2A 179 help 180 Select MX-G if running on an R8A03022BG part. 181 182# SH-3 Processor Support 183 184config CPU_SUBTYPE_SH7705 185 bool "Support SH7705 processor" 186 select CPU_SH3 187 188config CPU_SUBTYPE_SH7706 189 bool "Support SH7706 processor" 190 select CPU_SH3 191 help 192 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU. 193 194config CPU_SUBTYPE_SH7707 195 bool "Support SH7707 processor" 196 select CPU_SH3 197 help 198 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU. 199 200config CPU_SUBTYPE_SH7708 201 bool "Support SH7708 processor" 202 select CPU_SH3 203 help 204 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or 205 if you have a 100 Mhz SH-3 HD6417708R CPU. 206 207config CPU_SUBTYPE_SH7709 208 bool "Support SH7709 processor" 209 select CPU_SH3 210 help 211 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU. 212 213config CPU_SUBTYPE_SH7710 214 bool "Support SH7710 processor" 215 select CPU_SH3 216 select CPU_HAS_DSP 217 help 218 Select SH7710 if you have a SH3-DSP SH7710 CPU. 219 220config CPU_SUBTYPE_SH7712 221 bool "Support SH7712 processor" 222 select CPU_SH3 223 select CPU_HAS_DSP 224 help 225 Select SH7712 if you have a SH3-DSP SH7712 CPU. 226 227config CPU_SUBTYPE_SH7720 228 bool "Support SH7720 processor" 229 select CPU_SH3 230 select CPU_HAS_DSP 231 help 232 Select SH7720 if you have a SH3-DSP SH7720 CPU. 233 234config CPU_SUBTYPE_SH7721 235 bool "Support SH7721 processor" 236 select CPU_SH3 237 select CPU_HAS_DSP 238 help 239 Select SH7721 if you have a SH3-DSP SH7721 CPU. 240 241# SH-4 Processor Support 242 243config CPU_SUBTYPE_SH7750 244 bool "Support SH7750 processor" 245 select CPU_SH4 246 help 247 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU. 248 249config CPU_SUBTYPE_SH7091 250 bool "Support SH7091 processor" 251 select CPU_SH4 252 help 253 Select SH7091 if you have an SH-4 based Sega device (such as 254 the Dreamcast, Naomi, and Naomi 2). 255 256config CPU_SUBTYPE_SH7750R 257 bool "Support SH7750R processor" 258 select CPU_SH4 259 260config CPU_SUBTYPE_SH7750S 261 bool "Support SH7750S processor" 262 select CPU_SH4 263 264config CPU_SUBTYPE_SH7751 265 bool "Support SH7751 processor" 266 select CPU_SH4 267 help 268 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU, 269 or if you have a HD6417751R CPU. 270 271config CPU_SUBTYPE_SH7751R 272 bool "Support SH7751R processor" 273 select CPU_SH4 274 275config CPU_SUBTYPE_SH7760 276 bool "Support SH7760 processor" 277 select CPU_SH4 278 279config CPU_SUBTYPE_SH4_202 280 bool "Support SH4-202 processor" 281 select CPU_SH4 282 283# SH-4A Processor Support 284 285config CPU_SUBTYPE_SH7723 286 bool "Support SH7723 processor" 287 select CPU_SH4A 288 select CPU_SHX2 289 select ARCH_SPARSEMEM_ENABLE 290 help 291 Select SH7723 if you have an SH-MobileR2 CPU. 292 293config CPU_SUBTYPE_SH7763 294 bool "Support SH7763 processor" 295 select CPU_SH4A 296 help 297 Select SH7763 if you have a SH4A SH7763(R5S77631) CPU. 298 299config CPU_SUBTYPE_SH7770 300 bool "Support SH7770 processor" 301 select CPU_SH4A 302 303config CPU_SUBTYPE_SH7780 304 bool "Support SH7780 processor" 305 select CPU_SH4A 306 307config CPU_SUBTYPE_SH7785 308 bool "Support SH7785 processor" 309 select CPU_SH4A 310 select CPU_SHX2 311 select ARCH_SPARSEMEM_ENABLE 312 select SYS_SUPPORTS_NUMA 313 314config CPU_SUBTYPE_SHX3 315 bool "Support SH-X3 processor" 316 select CPU_SH4A 317 select CPU_SHX3 318 select ARCH_SPARSEMEM_ENABLE 319 select SYS_SUPPORTS_NUMA 320 select SYS_SUPPORTS_SMP 321 322# SH4AL-DSP Processor Support 323 324config CPU_SUBTYPE_SH7343 325 bool "Support SH7343 processor" 326 select CPU_SH4AL_DSP 327 328config CPU_SUBTYPE_SH7722 329 bool "Support SH7722 processor" 330 select CPU_SH4AL_DSP 331 select CPU_SHX2 332 select ARCH_SPARSEMEM_ENABLE 333 select SYS_SUPPORTS_NUMA 334 335config CPU_SUBTYPE_SH7366 336 bool "Support SH7366 processor" 337 select CPU_SH4AL_DSP 338 select CPU_SHX2 339 select ARCH_SPARSEMEM_ENABLE 340 select SYS_SUPPORTS_NUMA 341 342# SH-5 Processor Support 343 344config CPU_SUBTYPE_SH5_101 345 bool "Support SH5-101 processor" 346 select CPU_SH5 347 348config CPU_SUBTYPE_SH5_103 349 bool "Support SH5-103 processor" 350 select CPU_SH5 351 352endchoice 353 354source "arch/sh/mm/Kconfig" 355source "arch/sh/Kconfig.cpu" 356 357menu "Board support" 358 359config SOLUTION_ENGINE 360 bool 361 362config SH_SOLUTION_ENGINE 363 bool "SolutionEngine" 364 select SOLUTION_ENGINE 365 select CPU_HAS_IPR_IRQ 366 depends on CPU_SUBTYPE_SH7705 || CPU_SUBTYPE_SH7709 || CPU_SUBTYPE_SH7710 || \ 367 CPU_SUBTYPE_SH7712 || CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7750S || \ 368 CPU_SUBTYPE_SH7750R 369 help 370 Select SolutionEngine if configuring for a Hitachi SH7705, SH7709, 371 SH7710, SH7712, SH7750, SH7750S or SH7750R evaluation board. 372 373config SH_7206_SOLUTION_ENGINE 374 bool "SolutionEngine7206" 375 select SOLUTION_ENGINE 376 depends on CPU_SUBTYPE_SH7206 377 help 378 Select 7206 SolutionEngine if configuring for a Hitachi SH7206 379 evaluation board. 380 381config SH_7619_SOLUTION_ENGINE 382 bool "SolutionEngine7619" 383 select SOLUTION_ENGINE 384 depends on CPU_SUBTYPE_SH7619 385 help 386 Select 7619 SolutionEngine if configuring for a Hitachi SH7619 387 evaluation board. 388 389config SH_7721_SOLUTION_ENGINE 390 bool "SolutionEngine7721" 391 select SOLUTION_ENGINE 392 depends on CPU_SUBTYPE_SH7721 393 help 394 Select 7721 SolutionEngine if configuring for a Hitachi SH7721 395 evaluation board. 396 397config SH_7722_SOLUTION_ENGINE 398 bool "SolutionEngine7722" 399 select SOLUTION_ENGINE 400 depends on CPU_SUBTYPE_SH7722 401 help 402 Select 7722 SolutionEngine if configuring for a Hitachi SH772 403 evaluation board. 404 405config SH_7751_SOLUTION_ENGINE 406 bool "SolutionEngine7751" 407 select SOLUTION_ENGINE 408 select CPU_HAS_IPR_IRQ 409 depends on CPU_SUBTYPE_SH7751 410 help 411 Select 7751 SolutionEngine if configuring for a Hitachi SH7751 412 evaluation board. 413 414config SH_7780_SOLUTION_ENGINE 415 bool "SolutionEngine7780" 416 select SOLUTION_ENGINE 417 select SYS_SUPPORTS_PCI 418 depends on CPU_SUBTYPE_SH7780 419 help 420 Select 7780 SolutionEngine if configuring for a Renesas SH7780 421 evaluation board. 422 423config SH_7343_SOLUTION_ENGINE 424 bool "SolutionEngine7343" 425 select SOLUTION_ENGINE 426 depends on CPU_SUBTYPE_SH7343 427 help 428 Select 7343 SolutionEngine if configuring for a Hitachi 429 SH7343 (SH-Mobile 3AS) evaluation board. 430 431config SH_7751_SYSTEMH 432 bool "SystemH7751R" 433 depends on CPU_SUBTYPE_SH7751R 434 help 435 Select SystemH if you are configuring for a Renesas SystemH 436 7751R evaluation board. 437 438config SH_HP6XX 439 bool "HP6XX" 440 select SYS_SUPPORTS_APM_EMULATION 441 select HD6446X_SERIES 442 depends on CPU_SUBTYPE_SH7709 443 help 444 Select HP6XX if configuring for a HP jornada HP6xx. 445 More information (hardware only) at 446 <http://www.hp.com/jornada/>. 447 448config SH_DREAMCAST 449 bool "Dreamcast" 450 select SYS_SUPPORTS_PCI 451 depends on CPU_SUBTYPE_SH7091 452 help 453 Select Dreamcast if configuring for a SEGA Dreamcast. 454 More information at <http://www.linux-sh.org> 455 456config SH_SH03 457 bool "Interface CTP/PCI-SH03" 458 depends on CPU_SUBTYPE_SH7751 459 select CPU_HAS_IPR_IRQ 460 select SYS_SUPPORTS_PCI 461 help 462 CTP/PCI-SH03 is a CPU module computer that is produced 463 by Interface Corporation. 464 More information at <http://www.interface.co.jp> 465 466config SH_SECUREEDGE5410 467 bool "SecureEdge5410" 468 depends on CPU_SUBTYPE_SH7751R 469 select CPU_HAS_IPR_IRQ 470 select SYS_SUPPORTS_PCI 471 help 472 Select SecureEdge5410 if configuring for a SnapGear SH board. 473 This includes both the OEM SecureEdge products as well as the 474 SME product line. 475 476config SH_RTS7751R2D 477 bool "RTS7751R2D" 478 depends on CPU_SUBTYPE_SH7751R 479 select SYS_SUPPORTS_PCI 480 select IO_TRAPPED 481 help 482 Select RTS7751R2D if configuring for a Renesas Technology 483 Sales SH-Graphics board. 484 485config SH_RSK7203 486 bool "RSK7203" 487 depends on CPU_SUBTYPE_SH7203 488 489config SH_SDK7780 490 bool "SDK7780R3" 491 depends on CPU_SUBTYPE_SH7780 492 select SYS_SUPPORTS_PCI 493 help 494 Select SDK7780 if configuring for a Renesas SH7780 SDK7780R3 495 evaluation board. 496 497config SH_HIGHLANDER 498 bool "Highlander" 499 depends on CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 500 select SYS_SUPPORTS_PCI 501 select IO_TRAPPED 502 503config SH_SH7785LCR 504 bool "SH7785LCR" 505 depends on CPU_SUBTYPE_SH7785 506 select SYS_SUPPORTS_PCI 507 select IO_TRAPPED 508 509config SH_SH7785LCR_29BIT_PHYSMAPS 510 bool "SH7785LCR 29bit physmaps" 511 depends on SH_SH7785LCR 512 default y 513 help 514 This board has 2 physical memory maps. It can be changed with 515 DIP switch(S2-5). If you set the DIP switch for S2-5 = ON, 516 you can access all on-board device in 29bit address mode. 517 518config SH_MIGOR 519 bool "Migo-R" 520 depends on CPU_SUBTYPE_SH7722 521 help 522 Select Migo-R if configuring for the SH7722 Migo-R platform 523 by Renesas System Solutions Asia Pte. Ltd. 524 525config SH_AP325RXA 526 bool "AP-325RXA" 527 depends on CPU_SUBTYPE_SH7723 528 help 529 Renesas "AP-325RXA" support. 530 Compatible with ALGO SYSTEM CO.,LTD. "AP-320A" 531 532config SH_SH7763RDP 533 bool "SH7763RDP" 534 depends on CPU_SUBTYPE_SH7763 535 help 536 Select SH7763RDP if configuring for a Renesas SH7763 537 evaluation board. 538 539config SH_EDOSK7705 540 bool "EDOSK7705" 541 depends on CPU_SUBTYPE_SH7705 542 543config SH_SH4202_MICRODEV 544 bool "SH4-202 MicroDev" 545 depends on CPU_SUBTYPE_SH4_202 546 help 547 Select SH4-202 MicroDev if configuring for a SuperH MicroDev board 548 with an SH4-202 CPU. 549 550config SH_LANDISK 551 bool "LANDISK" 552 depends on CPU_SUBTYPE_SH7751R 553 select SYS_SUPPORTS_PCI 554 help 555 I-O DATA DEVICE, INC. "LANDISK Series" support. 556 557config SH_TITAN 558 bool "TITAN" 559 depends on CPU_SUBTYPE_SH7751R 560 select CPU_HAS_IPR_IRQ 561 select SYS_SUPPORTS_PCI 562 help 563 Select Titan if you are configuring for a Nimble Microsystems 564 NetEngine NP51R. 565 566config SH_SHMIN 567 bool "SHMIN" 568 depends on CPU_SUBTYPE_SH7706 569 select CPU_HAS_IPR_IRQ 570 help 571 Select SHMIN if configuring for the SHMIN board. 572 573config SH_LBOX_RE2 574 bool "L-BOX RE2" 575 depends on CPU_SUBTYPE_SH7751R 576 select SYS_SUPPORTS_PCI 577 help 578 Select L-BOX RE2 if configuring for the NTT COMWARE L-BOX RE2. 579 580config SH_X3PROTO 581 bool "SH-X3 Prototype board" 582 depends on CPU_SUBTYPE_SHX3 583 584config SH_MAGIC_PANEL_R2 585 bool "Magic Panel R2" 586 depends on CPU_SUBTYPE_SH7720 587 help 588 Select Magic Panel R2 if configuring for Magic Panel R2. 589 590config SH_CAYMAN 591 bool "Hitachi Cayman" 592 depends on CPU_SUBTYPE_SH5_101 || CPU_SUBTYPE_SH5_103 593 select SYS_SUPPORTS_PCI 594 595endmenu 596 597source "arch/sh/boards/mach-r2d/Kconfig" 598source "arch/sh/boards/mach-highlander/Kconfig" 599source "arch/sh/boards/mach-sdk7780/Kconfig" 600source "arch/sh/boards/mach-migor/Kconfig" 601source "arch/sh/boards/mach-magicpanelr2/Kconfig" 602 603menu "Timer and clock configuration" 604 605config SH_TMU 606 def_bool y 607 prompt "TMU timer support" 608 depends on CPU_SH3 || CPU_SH4 609 select GENERIC_TIME 610 select GENERIC_CLOCKEVENTS 611 help 612 This enables the use of the TMU as the system timer. 613 614config SH_CMT 615 def_bool y 616 prompt "CMT timer support" 617 depends on CPU_SH2 && !CPU_SUBTYPE_MXG 618 help 619 This enables the use of the CMT as the system timer. 620 621config SH_MTU2 622 def_bool n 623 prompt "MTU2 timer support" 624 depends on CPU_SH2A 625 help 626 This enables the use of the MTU2 as the system timer. 627 628config SH_TIMER_IRQ 629 int 630 default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 || \ 631 CPU_SUBTYPE_SH7763 632 default "86" if CPU_SUBTYPE_SH7619 633 default "140" if CPU_SUBTYPE_SH7206 634 default "142" if CPU_SUBTYPE_SH7203 635 default "238" if CPU_SUBTYPE_MXG 636 default "16" 637 638config SH_PCLK_FREQ 639 int "Peripheral clock frequency (in Hz)" 640 default "27000000" if CPU_SUBTYPE_SH7343 641 default "31250000" if CPU_SUBTYPE_SH7619 642 default "32000000" if CPU_SUBTYPE_SH7722 643 default "33333333" if CPU_SUBTYPE_SH7770 || CPU_SUBTYPE_SH7723 || \ 644 CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \ 645 CPU_SUBTYPE_SH7203 || CPU_SUBTYPE_SH7206 || \ 646 CPU_SUBTYPE_SH7263 || CPU_SUBTYPE_MXG 647 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R 648 default "66000000" if CPU_SUBTYPE_SH4_202 649 default "50000000" 650 help 651 This option is used to specify the peripheral clock frequency. 652 This is necessary for determining the reference clock value on 653 platforms lacking an RTC. 654 655config SH_CLK_MD 656 int "CPU Mode Pin Setting" 657 depends on CPU_SH2 658 default 6 if CPU_SUBTYPE_SH7206 659 default 5 if CPU_SUBTYPE_SH7619 660 default 0 661 help 662 MD2 - MD0 pin setting. 663 664source "kernel/time/Kconfig" 665 666endmenu 667 668menu "CPU Frequency scaling" 669 670source "drivers/cpufreq/Kconfig" 671 672config SH_CPU_FREQ 673 tristate "SuperH CPU Frequency driver" 674 depends on CPU_FREQ 675 select CPU_FREQ_TABLE 676 help 677 This adds the cpufreq driver for SuperH. At present, only 678 the SH-4 is supported. 679 680 For details, take a look at <file:Documentation/cpu-freq>. 681 682 If unsure, say N. 683 684endmenu 685 686source "arch/sh/drivers/Kconfig" 687 688endmenu 689 690config ISA_DMA_API 691 bool 692 693menu "Kernel features" 694 695source kernel/Kconfig.hz 696 697config KEXEC 698 bool "kexec system call (EXPERIMENTAL)" 699 depends on SUPERH32 && EXPERIMENTAL 700 help 701 kexec is a system call that implements the ability to shutdown your 702 current kernel, and to start another kernel. It is like a reboot 703 but it is independent of the system firmware. And like a reboot 704 you can start any kernel with it, not just Linux. 705 706 The name comes from the similarity to the exec system call. 707 708 It is an ongoing process to be certain the hardware in a machine 709 is properly shutdown, so do not be surprised if this code does not 710 initially work for you. It may help to enable device hotplugging 711 support. As of this writing the exact hardware interface is 712 strongly in flux, so no good recommendation can be made. 713 714config CRASH_DUMP 715 bool "kernel crash dumps (EXPERIMENTAL)" 716 depends on SUPERH32 && EXPERIMENTAL 717 help 718 Generate crash dump after being started by kexec. 719 This should be normally only set in special crash dump kernels 720 which are loaded in the main kernel with kexec-tools into 721 a specially reserved region and then later executed after 722 a crash by kdump/kexec. The crash dump kernel must be compiled 723 to a memory address not used by the main kernel using 724 MEMORY_START. 725 726 For more details see Documentation/kdump/kdump.txt 727 728config 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 751config NR_CPUS 752 int "Maximum number of CPUs (2-32)" 753 range 2 32 754 depends on SMP 755 default "4" if CPU_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 765source "kernel/Kconfig.preempt" 766 767config GUSA 768 def_bool y 769 depends on !SMP && SUPERH32 770 help 771 This enables support for gUSA (general UserSpace Atomicity). 772 This is the default implementation for both UP and non-ll/sc 773 CPUs, and is used by the libc, amongst others. 774 775 For additional information, design information can be found 776 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>. 777 778 This should only be disabled for special cases where alternate 779 atomicity implementations exist. 780 781config GUSA_RB 782 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)" 783 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A) 784 help 785 Enabling this option will allow the kernel to implement some 786 atomic operations using a software implemention of load-locked/ 787 store-conditional (LLSC). On machines which do not have hardware 788 LLSC, this should be more efficient than the other alternative of 789 disabling insterrupts around the atomic sequence. 790 791endmenu 792 793menu "Boot options" 794 795config ZERO_PAGE_OFFSET 796 hex "Zero page offset" 797 default "0x00004000" if SH_SH03 798 default "0x00010000" if PAGE_SIZE_64KB 799 default "0x00002000" if PAGE_SIZE_8KB 800 default "0x00001000" 801 help 802 This sets the default offset of zero page. 803 804config BOOT_LINK_OFFSET 805 hex "Link address offset for booting" 806 default "0x00800000" 807 help 808 This option allows you to set the link address offset of the zImage. 809 This can be useful if you are on a board which has a small amount of 810 memory. 811 812config UBC_WAKEUP 813 bool "Wakeup UBC on startup" 814 depends on CPU_SH4 && !CPU_SH4A 815 help 816 Selecting this option will wakeup the User Break Controller (UBC) on 817 startup. Although the UBC is left in an awake state when the processor 818 comes up, some boot loaders misbehave by putting the UBC to sleep in a 819 power saving state, which causes issues with things like ptrace(). 820 821 If unsure, say N. 822 823config CMDLINE_BOOL 824 bool "Default bootloader kernel arguments" 825 826config CMDLINE 827 string "Initial kernel command string" 828 depends on CMDLINE_BOOL 829 default "console=ttySC1,115200" 830 831endmenu 832 833menu "Bus options" 834 835# Even on SuperH devices which don't have an ISA bus, 836# this variable helps the PCMCIA modules handle 837# IRQ requesting properly -- Greg Banks. 838# 839# Though we're generally not interested in it when 840# we're not using PCMCIA, so we make it dependent on 841# PCMCIA outright. -- PFM. 842config ISA 843 def_bool y 844 depends on PCMCIA && HD6446X_SERIES 845 help 846 Find out whether you have ISA slots on your motherboard. ISA is the 847 name of a bus system, i.e. the way the CPU talks to the other stuff 848 inside your box. Other bus systems are PCI, EISA, MicroChannel 849 (MCA) or VESA. ISA is an older system, now being displaced by PCI; 850 newer boards don't support it. If you have ISA, say Y, otherwise N. 851 852config EISA 853 bool 854 ---help--- 855 The Extended Industry Standard Architecture (EISA) bus was 856 developed as an open alternative to the IBM MicroChannel bus. 857 858 The EISA bus provided some of the features of the IBM MicroChannel 859 bus while maintaining backward compatibility with cards made for 860 the older ISA bus. The EISA bus saw limited use between 1988 and 861 1995 when it was made obsolete by the PCI bus. 862 863 Say Y here if you are building a kernel for an EISA-based machine. 864 865 Otherwise, say N. 866 867config MCA 868 bool 869 help 870 MicroChannel Architecture is found in some IBM PS/2 machines and 871 laptops. It is a bus system similar to PCI or ISA. See 872 <file:Documentation/mca.txt> (and especially the web page given 873 there) before attempting to build an MCA bus kernel. 874 875config SBUS 876 bool 877 878config SUPERHYWAY 879 tristate "SuperHyway Bus support" 880 depends on CPU_SUBTYPE_SH4_202 881 882config MAPLE 883 bool "Maple Bus support" 884 depends on SH_DREAMCAST 885 help 886 The Maple Bus is SEGA's serial communication bus for peripherals 887 on the Dreamcast. Without this bus support you won't be able to 888 get your Dreamcast keyboard etc to work, so most users 889 probably want to say 'Y' here, unless you are only using the 890 Dreamcast with a serial line terminal or a remote network 891 connection. 892 893config CF_ENABLER 894 bool "Compact Flash Enabler support" 895 depends on SOLUTION_ENGINE || SH_SH03 896 ---help--- 897 Compact Flash is a small, removable mass storage device introduced 898 in 1994 originally as a PCMCIA device. If you say `Y' here, you 899 compile in support for Compact Flash devices directly connected to 900 a SuperH processor. A Compact Flash FAQ is available at 901 <http://www.compactflash.org/faqs/faq.htm>. 902 903 If your board has "Directly Connected" CompactFlash at area 5 or 6, 904 you may want to enable this option. Then, you can use CF as 905 primary IDE drive (only tested for SanDisk). 906 907 If in doubt, select 'N'. 908 909choice 910 prompt "Compact Flash Connection Area" 911 depends on CF_ENABLER 912 default CF_AREA6 913 914config CF_AREA5 915 bool "Area5" 916 help 917 If your board has "Directly Connected" CompactFlash, You should 918 select the area where your CF is connected to. 919 920 - "Area5" if CompactFlash is connected to Area 5 (0x14000000) 921 - "Area6" if it is connected to Area 6 (0x18000000) 922 923 "Area6" will work for most boards. 924 925config CF_AREA6 926 bool "Area6" 927 928endchoice 929 930config CF_BASE_ADDR 931 hex 932 depends on CF_ENABLER 933 default "0xb8000000" if CF_AREA6 934 default "0xb4000000" if CF_AREA5 935 936source "arch/sh/drivers/pci/Kconfig" 937 938source "drivers/pci/Kconfig" 939 940source "drivers/pcmcia/Kconfig" 941 942source "drivers/pci/hotplug/Kconfig" 943 944endmenu 945 946menu "Executable file formats" 947 948source "fs/Kconfig.binfmt" 949 950endmenu 951 952menu "Power management options (EXPERIMENTAL)" 953depends on EXPERIMENTAL && SYS_SUPPORTS_PM 954 955config ARCH_SUSPEND_POSSIBLE 956 def_bool y 957 depends on !SMP 958 959source kernel/power/Kconfig 960 961endmenu 962 963source "net/Kconfig" 964 965source "drivers/Kconfig" 966 967source "fs/Kconfig" 968 969source "arch/sh/Kconfig.debug" 970 971source "security/Kconfig" 972 973source "crypto/Kconfig" 974 975source "lib/Kconfig" 976