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_LMB 14 select HAVE_OPROFILE 15 select HAVE_GENERIC_DMA_COHERENT 16 select HAVE_IOREMAP_PROT if MMU 17 select HAVE_ARCH_TRACEHOOK 18 select HAVE_DMA_API_DEBUG 19 select HAVE_PERF_COUNTERS 20 select HAVE_KERNEL_GZIP 21 select HAVE_KERNEL_BZIP2 22 select HAVE_KERNEL_LZMA 23 select HAVE_SYSCALL_TRACEPOINTS 24 select RTC_LIB 25 select GENERIC_ATOMIC64 26 help 27 The SuperH is a RISC processor targeted for use in embedded systems 28 and consumer electronics; it was also used in the Sega Dreamcast 29 gaming console. The SuperH port has a home page at 30 <http://www.linux-sh.org/>. 31 32config SUPERH32 33 def_bool ARCH = "sh" 34 select HAVE_KPROBES 35 select HAVE_KRETPROBES 36 select HAVE_FUNCTION_TRACER 37 select HAVE_FTRACE_MCOUNT_RECORD 38 select HAVE_DYNAMIC_FTRACE 39 select HAVE_FUNCTION_TRACE_MCOUNT_TEST 40 select HAVE_FTRACE_SYSCALLS 41 select HAVE_FUNCTION_GRAPH_TRACER 42 select HAVE_ARCH_KGDB 43 select ARCH_HIBERNATION_POSSIBLE if MMU 44 45config SUPERH64 46 def_bool ARCH = "sh64" 47 48config ARCH_DEFCONFIG 49 string 50 default "arch/sh/configs/shx3_defconfig" if SUPERH32 51 default "arch/sh/configs/cayman_defconfig" if SUPERH64 52 53config RWSEM_GENERIC_SPINLOCK 54 def_bool y 55 56config RWSEM_XCHGADD_ALGORITHM 57 bool 58 59config GENERIC_BUG 60 def_bool y 61 depends on BUG && SUPERH32 62 63config GENERIC_CSUM 64 def_bool y 65 depends on SUPERH64 66 67config GENERIC_FIND_NEXT_BIT 68 def_bool y 69 70config GENERIC_HWEIGHT 71 def_bool y 72 73config GENERIC_HARDIRQS 74 def_bool y 75 76config GENERIC_HARDIRQS_NO__DO_IRQ 77 def_bool y 78 79config GENERIC_IRQ_PROBE 80 def_bool y 81 82config IRQ_PER_CPU 83 def_bool y 84 85config GENERIC_GPIO 86 def_bool n 87 88config GENERIC_CALIBRATE_DELAY 89 bool 90 91config GENERIC_IOMAP 92 bool 93 94config GENERIC_TIME 95 def_bool y 96 97config GENERIC_CLOCKEVENTS 98 def_bool y 99 100config GENERIC_CLOCKEVENTS_BROADCAST 101 bool 102 103config GENERIC_CMOS_UPDATE 104 def_bool y 105 depends on SH_SH03 || SH_DREAMCAST 106 107config GENERIC_LOCKBREAK 108 def_bool y 109 depends on SMP && PREEMPT 110 111config SYS_SUPPORTS_PM 112 bool 113 depends on !SMP 114 115config ARCH_SUSPEND_POSSIBLE 116 def_bool n 117 118config ARCH_HIBERNATION_POSSIBLE 119 def_bool n 120 121config SYS_SUPPORTS_APM_EMULATION 122 bool 123 select ARCH_SUSPEND_POSSIBLE 124 125config SYS_SUPPORTS_SMP 126 bool 127 128config SYS_SUPPORTS_NUMA 129 bool 130 131config SYS_SUPPORTS_PCI 132 bool 133 134config SYS_SUPPORTS_CMT 135 bool 136 137config SYS_SUPPORTS_MTU2 138 bool 139 140config SYS_SUPPORTS_TMU 141 bool 142 143config STACKTRACE_SUPPORT 144 def_bool y 145 146config LOCKDEP_SUPPORT 147 def_bool y 148 149config HAVE_LATENCYTOP_SUPPORT 150 def_bool y 151 depends on !SMP 152 153config ARCH_HAS_ILOG2_U32 154 def_bool n 155 156config ARCH_HAS_ILOG2_U64 157 def_bool n 158 159config ARCH_NO_VIRT_TO_BUS 160 def_bool y 161 162config ARCH_HAS_DEFAULT_IDLE 163 def_bool y 164 165config ARCH_HAS_CPU_IDLE_WAIT 166 def_bool y 167 168config IO_TRAPPED 169 bool 170 171source "init/Kconfig" 172 173source "kernel/Kconfig.freezer" 174 175menu "System type" 176 177# 178# Processor families 179# 180config CPU_SH2 181 bool 182 183config CPU_SH2A 184 bool 185 select CPU_SH2 186 187config CPU_SH3 188 bool 189 select CPU_HAS_INTEVT 190 select CPU_HAS_SR_RB 191 select SYS_SUPPORTS_TMU 192 193config CPU_SH4 194 bool 195 select CPU_HAS_INTEVT 196 select CPU_HAS_SR_RB 197 select CPU_HAS_FPU if !CPU_SH4AL_DSP 198 select SYS_SUPPORTS_TMU 199 200config CPU_SH4A 201 bool 202 select CPU_SH4 203 204config CPU_SH4AL_DSP 205 bool 206 select CPU_SH4A 207 select CPU_HAS_DSP 208 209config CPU_SH5 210 bool 211 select CPU_HAS_FPU 212 select SYS_SUPPORTS_TMU 213 214config CPU_SHX2 215 bool 216 217config CPU_SHX3 218 bool 219 220config ARCH_SHMOBILE 221 bool 222 select ARCH_SUSPEND_POSSIBLE 223 select PM 224 select PM_RUNTIME 225 226if SUPERH32 227 228choice 229 prompt "Processor sub-type selection" 230 231# 232# Processor subtypes 233# 234 235# SH-2 Processor Support 236 237config CPU_SUBTYPE_SH7619 238 bool "Support SH7619 processor" 239 select CPU_SH2 240 select SYS_SUPPORTS_CMT 241 242# SH-2A Processor Support 243 244config CPU_SUBTYPE_SH7201 245 bool "Support SH7201 processor" 246 select CPU_SH2A 247 select CPU_HAS_FPU 248 select SYS_SUPPORTS_MTU2 249 250config CPU_SUBTYPE_SH7203 251 bool "Support SH7203 processor" 252 select CPU_SH2A 253 select CPU_HAS_FPU 254 select SYS_SUPPORTS_CMT 255 select SYS_SUPPORTS_MTU2 256 257config CPU_SUBTYPE_SH7206 258 bool "Support SH7206 processor" 259 select CPU_SH2A 260 select SYS_SUPPORTS_CMT 261 select SYS_SUPPORTS_MTU2 262 263config CPU_SUBTYPE_SH7263 264 bool "Support SH7263 processor" 265 select CPU_SH2A 266 select CPU_HAS_FPU 267 select SYS_SUPPORTS_CMT 268 select SYS_SUPPORTS_MTU2 269 270config CPU_SUBTYPE_MXG 271 bool "Support MX-G processor" 272 select CPU_SH2A 273 select SYS_SUPPORTS_MTU2 274 help 275 Select MX-G if running on an R8A03022BG part. 276 277# SH-3 Processor Support 278 279config CPU_SUBTYPE_SH7705 280 bool "Support SH7705 processor" 281 select CPU_SH3 282 283config CPU_SUBTYPE_SH7706 284 bool "Support SH7706 processor" 285 select CPU_SH3 286 help 287 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU. 288 289config CPU_SUBTYPE_SH7707 290 bool "Support SH7707 processor" 291 select CPU_SH3 292 help 293 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU. 294 295config CPU_SUBTYPE_SH7708 296 bool "Support SH7708 processor" 297 select CPU_SH3 298 help 299 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or 300 if you have a 100 Mhz SH-3 HD6417708R CPU. 301 302config CPU_SUBTYPE_SH7709 303 bool "Support SH7709 processor" 304 select CPU_SH3 305 help 306 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU. 307 308config CPU_SUBTYPE_SH7710 309 bool "Support SH7710 processor" 310 select CPU_SH3 311 select CPU_HAS_DSP 312 help 313 Select SH7710 if you have a SH3-DSP SH7710 CPU. 314 315config CPU_SUBTYPE_SH7712 316 bool "Support SH7712 processor" 317 select CPU_SH3 318 select CPU_HAS_DSP 319 help 320 Select SH7712 if you have a SH3-DSP SH7712 CPU. 321 322config CPU_SUBTYPE_SH7720 323 bool "Support SH7720 processor" 324 select CPU_SH3 325 select CPU_HAS_DSP 326 select SYS_SUPPORTS_CMT 327 help 328 Select SH7720 if you have a SH3-DSP SH7720 CPU. 329 330config CPU_SUBTYPE_SH7721 331 bool "Support SH7721 processor" 332 select CPU_SH3 333 select CPU_HAS_DSP 334 select SYS_SUPPORTS_CMT 335 help 336 Select SH7721 if you have a SH3-DSP SH7721 CPU. 337 338# SH-4 Processor Support 339 340config CPU_SUBTYPE_SH7750 341 bool "Support SH7750 processor" 342 select CPU_SH4 343 help 344 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU. 345 346config CPU_SUBTYPE_SH7091 347 bool "Support SH7091 processor" 348 select CPU_SH4 349 help 350 Select SH7091 if you have an SH-4 based Sega device (such as 351 the Dreamcast, Naomi, and Naomi 2). 352 353config CPU_SUBTYPE_SH7750R 354 bool "Support SH7750R processor" 355 select CPU_SH4 356 357config CPU_SUBTYPE_SH7750S 358 bool "Support SH7750S processor" 359 select CPU_SH4 360 361config CPU_SUBTYPE_SH7751 362 bool "Support SH7751 processor" 363 select CPU_SH4 364 help 365 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU, 366 or if you have a HD6417751R CPU. 367 368config CPU_SUBTYPE_SH7751R 369 bool "Support SH7751R processor" 370 select CPU_SH4 371 372config CPU_SUBTYPE_SH7760 373 bool "Support SH7760 processor" 374 select CPU_SH4 375 376config CPU_SUBTYPE_SH4_202 377 bool "Support SH4-202 processor" 378 select CPU_SH4 379 380# SH-4A Processor Support 381 382config CPU_SUBTYPE_SH7723 383 bool "Support SH7723 processor" 384 select CPU_SH4A 385 select CPU_SHX2 386 select ARCH_SHMOBILE 387 select ARCH_SPARSEMEM_ENABLE 388 select SYS_SUPPORTS_CMT 389 help 390 Select SH7723 if you have an SH-MobileR2 CPU. 391 392config CPU_SUBTYPE_SH7724 393 bool "Support SH7724 processor" 394 select CPU_SH4A 395 select CPU_SHX2 396 select ARCH_SHMOBILE 397 select ARCH_SPARSEMEM_ENABLE 398 select SYS_SUPPORTS_CMT 399 help 400 Select SH7724 if you have an SH-MobileR2R CPU. 401 402config CPU_SUBTYPE_SH7757 403 bool "Support SH7757 processor" 404 select CPU_SH4A 405 select CPU_SHX2 406 help 407 Select SH7757 if you have a SH4A SH7757 CPU. 408 409config CPU_SUBTYPE_SH7763 410 bool "Support SH7763 processor" 411 select CPU_SH4A 412 help 413 Select SH7763 if you have a SH4A SH7763(R5S77631) CPU. 414 415config CPU_SUBTYPE_SH7770 416 bool "Support SH7770 processor" 417 select CPU_SH4A 418 419config CPU_SUBTYPE_SH7780 420 bool "Support SH7780 processor" 421 select CPU_SH4A 422 423config CPU_SUBTYPE_SH7785 424 bool "Support SH7785 processor" 425 select CPU_SH4A 426 select CPU_SHX2 427 select ARCH_SPARSEMEM_ENABLE 428 select SYS_SUPPORTS_NUMA 429 430config CPU_SUBTYPE_SH7786 431 bool "Support SH7786 processor" 432 select CPU_SH4A 433 select CPU_SHX3 434 select CPU_HAS_PTEAEX 435 select ARCH_SPARSEMEM_ENABLE 436 select SYS_SUPPORTS_NUMA 437 select SYS_SUPPORTS_SMP 438 select GENERIC_CLOCKEVENTS_BROADCAST if SMP 439 440config CPU_SUBTYPE_SHX3 441 bool "Support SH-X3 processor" 442 select CPU_SH4A 443 select CPU_SHX3 444 select ARCH_SPARSEMEM_ENABLE 445 select SYS_SUPPORTS_NUMA 446 select SYS_SUPPORTS_SMP 447 select GENERIC_CLOCKEVENTS_BROADCAST if SMP 448 449# SH4AL-DSP Processor Support 450 451config CPU_SUBTYPE_SH7343 452 bool "Support SH7343 processor" 453 select CPU_SH4AL_DSP 454 select ARCH_SHMOBILE 455 select SYS_SUPPORTS_CMT 456 457config CPU_SUBTYPE_SH7722 458 bool "Support SH7722 processor" 459 select CPU_SH4AL_DSP 460 select CPU_SHX2 461 select ARCH_SHMOBILE 462 select ARCH_SPARSEMEM_ENABLE 463 select SYS_SUPPORTS_NUMA 464 select SYS_SUPPORTS_CMT 465 466config CPU_SUBTYPE_SH7366 467 bool "Support SH7366 processor" 468 select CPU_SH4AL_DSP 469 select CPU_SHX2 470 select ARCH_SHMOBILE 471 select ARCH_SPARSEMEM_ENABLE 472 select SYS_SUPPORTS_NUMA 473 select SYS_SUPPORTS_CMT 474 475endchoice 476 477endif 478 479if SUPERH64 480 481choice 482 prompt "Processor sub-type selection" 483 484# SH-5 Processor Support 485 486config CPU_SUBTYPE_SH5_101 487 bool "Support SH5-101 processor" 488 select CPU_SH5 489 490config CPU_SUBTYPE_SH5_103 491 bool "Support SH5-103 processor" 492 select CPU_SH5 493 494endchoice 495 496endif 497 498source "arch/sh/mm/Kconfig" 499 500source "arch/sh/Kconfig.cpu" 501 502source "arch/sh/boards/Kconfig" 503 504menu "Timer and clock configuration" 505 506config SH_TIMER_TMU 507 bool "TMU timer driver" 508 depends on SYS_SUPPORTS_TMU 509 default y 510 help 511 This enables the build of the TMU timer driver. 512 513config SH_TIMER_CMT 514 bool "CMT timer driver" 515 depends on SYS_SUPPORTS_CMT 516 default y 517 help 518 This enables build of the CMT timer driver. 519 520config SH_TIMER_MTU2 521 bool "MTU2 timer driver" 522 depends on SYS_SUPPORTS_MTU2 523 default y 524 help 525 This enables build of the MTU2 timer driver. 526 527config SH_PCLK_FREQ 528 int "Peripheral clock frequency (in Hz)" 529 default "27000000" if CPU_SUBTYPE_SH7343 530 default "31250000" if CPU_SUBTYPE_SH7619 531 default "32000000" if CPU_SUBTYPE_SH7722 532 default "33333333" if CPU_SUBTYPE_SH7770 || CPU_SUBTYPE_SH7723 || \ 533 CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \ 534 CPU_SUBTYPE_SH7203 || CPU_SUBTYPE_SH7206 || \ 535 CPU_SUBTYPE_SH7263 || CPU_SUBTYPE_MXG || \ 536 CPU_SUBTYPE_SH7786 || CPU_SUBTYPE_SH7724 537 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R 538 default "66000000" if CPU_SUBTYPE_SH4_202 539 default "50000000" 540 help 541 This option is used to specify the peripheral clock frequency. 542 This is necessary for determining the reference clock value on 543 platforms lacking an RTC. 544 545config SH_CLK_CPG 546 def_bool y 547 548config SH_CLK_CPG_LEGACY 549 depends on SH_CLK_CPG 550 def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE 551 552config SH_CLK_MD 553 int "CPU Mode Pin Setting" 554 depends on CPU_SH2 555 default 6 if CPU_SUBTYPE_SH7206 556 default 5 if CPU_SUBTYPE_SH7619 557 default 0 558 help 559 MD2 - MD0 pin setting. 560 561source "kernel/time/Kconfig" 562 563endmenu 564 565menu "CPU Frequency scaling" 566 567source "drivers/cpufreq/Kconfig" 568 569config SH_CPU_FREQ 570 tristate "SuperH CPU Frequency driver" 571 depends on CPU_FREQ 572 select CPU_FREQ_TABLE 573 help 574 This adds the cpufreq driver for SuperH. Any CPU that supports 575 clock rate rounding through the clock framework can use this 576 driver. While it will make the kernel slightly larger, this is 577 harmless for CPUs that don't support rate rounding. The driver 578 will also generate a notice in the boot log before disabling 579 itself if the CPU in question is not capable of rate rounding. 580 581 For details, take a look at <file:Documentation/cpu-freq>. 582 583 If unsure, say N. 584 585endmenu 586 587source "arch/sh/drivers/Kconfig" 588 589endmenu 590 591menu "Kernel features" 592 593source kernel/Kconfig.hz 594 595config KEXEC 596 bool "kexec system call (EXPERIMENTAL)" 597 depends on SUPERH32 && EXPERIMENTAL && MMU 598 help 599 kexec is a system call that implements the ability to shutdown your 600 current kernel, and to start another kernel. It is like a reboot 601 but it is independent of the system firmware. And like a reboot 602 you can start any kernel with it, not just Linux. 603 604 The name comes from the similarity to the exec system call. 605 606 It is an ongoing process to be certain the hardware in a machine 607 is properly shutdown, so do not be surprised if this code does not 608 initially work for you. It may help to enable device hotplugging 609 support. As of this writing the exact hardware interface is 610 strongly in flux, so no good recommendation can be made. 611 612config CRASH_DUMP 613 bool "kernel crash dumps (EXPERIMENTAL)" 614 depends on SUPERH32 && EXPERIMENTAL 615 help 616 Generate crash dump after being started by kexec. 617 This should be normally only set in special crash dump kernels 618 which are loaded in the main kernel with kexec-tools into 619 a specially reserved region and then later executed after 620 a crash by kdump/kexec. The crash dump kernel must be compiled 621 to a memory address not used by the main kernel using 622 MEMORY_START. 623 624 For more details see Documentation/kdump/kdump.txt 625 626config KEXEC_JUMP 627 bool "kexec jump (EXPERIMENTAL)" 628 depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL 629 help 630 Jump between original kernel and kexeced kernel and invoke 631 code via KEXEC 632 633config SECCOMP 634 bool "Enable seccomp to safely compute untrusted bytecode" 635 depends on PROC_FS 636 help 637 This kernel feature is useful for number crunching applications 638 that may need to compute untrusted bytecode during their 639 execution. By using pipes or other transports made available to 640 the process as file descriptors supporting the read/write 641 syscalls, it's possible to isolate those applications in 642 their own address space using seccomp. Once seccomp is 643 enabled via prctl, it cannot be disabled and the task is only 644 allowed to execute a few safe syscalls defined by each seccomp 645 mode. 646 647 If unsure, say N. 648 649config SMP 650 bool "Symmetric multi-processing support" 651 depends on SYS_SUPPORTS_SMP 652 select USE_GENERIC_SMP_HELPERS 653 ---help--- 654 This enables support for systems with more than one CPU. If you have 655 a system with only one CPU, like most personal computers, say N. If 656 you have a system with more than one CPU, say Y. 657 658 If you say N here, the kernel will run on single and multiprocessor 659 machines, but will use only one CPU of a multiprocessor machine. If 660 you say Y here, the kernel will run on many, but not all, 661 singleprocessor machines. On a singleprocessor machine, the kernel 662 will run faster if you say N here. 663 664 People using multiprocessor machines who say Y here should also say 665 Y to "Enhanced Real Time Clock Support", below. 666 667 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO 668 available at <http://www.tldp.org/docs.html#howto>. 669 670 If you don't know what to do here, say N. 671 672config NR_CPUS 673 int "Maximum number of CPUs (2-32)" 674 range 2 32 675 depends on SMP 676 default "4" if CPU_SUBTYPE_SHX3 677 default "2" 678 help 679 This allows you to specify the maximum number of CPUs which this 680 kernel will support. The maximum supported value is 32 and the 681 minimum value which makes sense is 2. 682 683 This is purely to save memory - each supported CPU adds 684 approximately eight kilobytes to the kernel image. 685 686source "kernel/Kconfig.preempt" 687 688config GUSA 689 def_bool y 690 depends on !SMP && SUPERH32 691 help 692 This enables support for gUSA (general UserSpace Atomicity). 693 This is the default implementation for both UP and non-ll/sc 694 CPUs, and is used by the libc, amongst others. 695 696 For additional information, design information can be found 697 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>. 698 699 This should only be disabled for special cases where alternate 700 atomicity implementations exist. 701 702config GUSA_RB 703 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)" 704 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A) 705 help 706 Enabling this option will allow the kernel to implement some 707 atomic operations using a software implementation of load-locked/ 708 store-conditional (LLSC). On machines which do not have hardware 709 LLSC, this should be more efficient than the other alternative of 710 disabling interrupts around the atomic sequence. 711 712config SPARSE_IRQ 713 bool "Support sparse irq numbering" 714 depends on EXPERIMENTAL 715 help 716 This enables support for sparse irqs. This is useful in general 717 as most CPUs have a fairly sparse array of IRQ vectors, which 718 the irq_desc then maps directly on to. Systems with a high 719 number of off-chip IRQs will want to treat this as 720 experimental until they have been independently verified. 721 722 If you don't know what to do here, say N. 723 724endmenu 725 726menu "Boot options" 727 728config ZERO_PAGE_OFFSET 729 hex 730 default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \ 731 SH_7751_SOLUTION_ENGINE 732 default "0x00004000" if PAGE_SIZE_16KB || SH_SH03 733 default "0x00002000" if PAGE_SIZE_8KB 734 default "0x00001000" 735 help 736 This sets the default offset of zero page. 737 738config BOOT_LINK_OFFSET 739 hex 740 default "0x00210000" if SH_SHMIN 741 default "0x00400000" if SH_CAYMAN 742 default "0x00810000" if SH_7780_SOLUTION_ENGINE 743 default "0x009e0000" if SH_TITAN 744 default "0x01800000" if SH_SDK7780 745 default "0x02000000" if SH_EDOSK7760 746 default "0x00800000" 747 help 748 This option allows you to set the link address offset of the zImage. 749 This can be useful if you are on a board which has a small amount of 750 memory. 751 752config ENTRY_OFFSET 753 hex 754 default "0x00001000" if PAGE_SIZE_4KB 755 default "0x00002000" if PAGE_SIZE_8KB 756 default "0x00004000" if PAGE_SIZE_16KB 757 default "0x00010000" if PAGE_SIZE_64KB 758 default "0x00000000" 759 760config UBC_WAKEUP 761 bool "Wakeup UBC on startup" 762 depends on CPU_SH4 && !CPU_SH4A 763 help 764 Selecting this option will wakeup the User Break Controller (UBC) on 765 startup. Although the UBC is left in an awake state when the processor 766 comes up, some boot loaders misbehave by putting the UBC to sleep in a 767 power saving state, which causes issues with things like ptrace(). 768 769 If unsure, say N. 770 771choice 772 prompt "Kernel command line" 773 optional 774 default CMDLINE_OVERWRITE 775 help 776 Setting this option allows the kernel command line arguments 777 to be set. 778 779config CMDLINE_OVERWRITE 780 bool "Overwrite bootloader kernel arguments" 781 help 782 Given string will overwrite any arguments passed in by 783 a bootloader. 784 785config CMDLINE_EXTEND 786 bool "Extend bootloader kernel arguments" 787 help 788 Given string will be concatenated with arguments passed in 789 by a bootloader. 790 791endchoice 792 793config CMDLINE 794 string "Kernel command line arguments string" 795 depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND 796 default "console=ttySC1,115200" 797 798endmenu 799 800menu "Bus options" 801 802config SUPERHYWAY 803 tristate "SuperHyway Bus support" 804 depends on CPU_SUBTYPE_SH4_202 805 806config MAPLE 807 bool "Maple Bus support" 808 depends on SH_DREAMCAST 809 help 810 The Maple Bus is SEGA's serial communication bus for peripherals 811 on the Dreamcast. Without this bus support you won't be able to 812 get your Dreamcast keyboard etc to work, so most users 813 probably want to say 'Y' here, unless you are only using the 814 Dreamcast with a serial line terminal or a remote network 815 connection. 816 817source "arch/sh/drivers/pci/Kconfig" 818 819source "drivers/pci/pcie/Kconfig" 820 821source "drivers/pci/Kconfig" 822 823source "drivers/pcmcia/Kconfig" 824 825source "drivers/pci/hotplug/Kconfig" 826 827endmenu 828 829menu "Executable file formats" 830 831source "fs/Kconfig.binfmt" 832 833endmenu 834 835menu "Power management options (EXPERIMENTAL)" 836depends on EXPERIMENTAL 837 838source "kernel/power/Kconfig" 839 840source "drivers/cpuidle/Kconfig" 841 842endmenu 843 844source "net/Kconfig" 845 846source "drivers/Kconfig" 847 848source "fs/Kconfig" 849 850source "arch/sh/Kconfig.debug" 851 852source "security/Kconfig" 853 854source "crypto/Kconfig" 855 856source "lib/Kconfig" 857