1config SUPERH 2 def_bool y 3 select ARCH_MIGHT_HAVE_PC_PARPORT 4 select EXPERT 5 select CLKDEV_LOOKUP 6 select HAVE_IDE if HAS_IOPORT_MAP 7 select HAVE_MEMBLOCK 8 select HAVE_MEMBLOCK_NODE_MAP 9 select ARCH_DISCARD_MEMBLOCK 10 select HAVE_OPROFILE 11 select HAVE_GENERIC_DMA_COHERENT 12 select HAVE_ARCH_TRACEHOOK 13 select HAVE_DMA_API_DEBUG 14 select HAVE_DMA_ATTRS 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 ARCH_HAS_GCOV_PROFILE_ALL 20 select PERF_USE_VMALLOC 21 select HAVE_DEBUG_KMEMLEAK 22 select HAVE_KERNEL_GZIP 23 select HAVE_KERNEL_BZIP2 24 select HAVE_KERNEL_LZMA 25 select HAVE_KERNEL_XZ 26 select HAVE_KERNEL_LZO 27 select HAVE_UID16 28 select ARCH_WANT_IPC_PARSE_VERSION 29 select HAVE_SYSCALL_TRACEPOINTS 30 select HAVE_REGS_AND_STACK_ACCESS_API 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_IDLE_POLL_SETUP 38 select GENERIC_CLOCKEVENTS 39 select GENERIC_CMOS_UPDATE if SH_SH03 || SH_DREAMCAST 40 select GENERIC_STRNCPY_FROM_USER 41 select GENERIC_STRNLEN_USER 42 select HAVE_MOD_ARCH_SPECIFIC if DWARF_UNWINDER 43 select MODULES_USE_ELF_RELA 44 select OLD_SIGSUSPEND 45 select OLD_SIGACTION 46 select HAVE_ARCH_AUDITSYSCALL 47 help 48 The SuperH is a RISC processor targeted for use in embedded systems 49 and consumer electronics; it was also used in the Sega Dreamcast 50 gaming console. The SuperH port has a home page at 51 <http://www.linux-sh.org/>. 52 53config SUPERH32 54 def_bool ARCH = "sh" 55 select HAVE_KPROBES 56 select HAVE_KRETPROBES 57 select HAVE_IOREMAP_PROT if MMU && !X2TLB 58 select HAVE_FUNCTION_TRACER 59 select HAVE_FTRACE_MCOUNT_RECORD 60 select HAVE_DYNAMIC_FTRACE 61 select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE 62 select ARCH_WANT_IPC_PARSE_VERSION 63 select HAVE_FUNCTION_GRAPH_TRACER 64 select HAVE_ARCH_KGDB 65 select HAVE_HW_BREAKPOINT 66 select HAVE_MIXED_BREAKPOINTS_REGS 67 select PERF_EVENTS 68 select ARCH_HIBERNATION_POSSIBLE if MMU 69 select SPARSE_IRQ 70 select HAVE_CC_STACKPROTECTOR 71 72config SUPERH64 73 def_bool ARCH = "sh64" 74 select KALLSYMS 75 76config ARCH_DEFCONFIG 77 string 78 default "arch/sh/configs/shx3_defconfig" if SUPERH32 79 default "arch/sh/configs/cayman_defconfig" if SUPERH64 80 81config RWSEM_GENERIC_SPINLOCK 82 def_bool y 83 84config RWSEM_XCHGADD_ALGORITHM 85 bool 86 87config GENERIC_BUG 88 def_bool y 89 depends on BUG && SUPERH32 90 91config GENERIC_CSUM 92 def_bool y 93 depends on SUPERH64 94 95config GENERIC_HWEIGHT 96 def_bool y 97 98config GENERIC_CALIBRATE_DELAY 99 bool 100 101config GENERIC_LOCKBREAK 102 def_bool y 103 depends on SMP && PREEMPT 104 105config ARCH_SUSPEND_POSSIBLE 106 def_bool n 107 108config ARCH_HIBERNATION_POSSIBLE 109 def_bool n 110 111config SYS_SUPPORTS_APM_EMULATION 112 bool 113 select ARCH_SUSPEND_POSSIBLE 114 115config SYS_SUPPORTS_HUGETLBFS 116 bool 117 118config SYS_SUPPORTS_SMP 119 bool 120 121config SYS_SUPPORTS_NUMA 122 bool 123 124config SYS_SUPPORTS_PCI 125 bool 126 127config STACKTRACE_SUPPORT 128 def_bool y 129 130config LOCKDEP_SUPPORT 131 def_bool y 132 133config HAVE_LATENCYTOP_SUPPORT 134 def_bool y 135 136config ARCH_HAS_ILOG2_U32 137 def_bool n 138 139config ARCH_HAS_ILOG2_U64 140 def_bool n 141 142config NO_IOPORT_MAP 143 def_bool !PCI 144 depends on !SH_CAYMAN && !SH_SH4202_MICRODEV && !SH_SHMIN && \ 145 !SH_HP6XX && !SH_SOLUTION_ENGINE 146 147config IO_TRAPPED 148 bool 149 150config SWAP_IO_SPACE 151 bool 152 153config DMA_COHERENT 154 bool 155 156config DMA_NONCOHERENT 157 def_bool !DMA_COHERENT 158 159config NEED_DMA_MAP_STATE 160 def_bool DMA_NONCOHERENT 161 162config NEED_SG_DMA_LENGTH 163 def_bool y 164 165source "init/Kconfig" 166 167source "kernel/Kconfig.freezer" 168 169menu "System type" 170 171# 172# Processor families 173# 174config CPU_SH2 175 bool 176 select SH_INTC 177 178config CPU_SH2A 179 bool 180 select CPU_SH2 181 select UNCACHED_MAPPING 182 183config CPU_SH3 184 bool 185 select CPU_HAS_INTEVT 186 select CPU_HAS_SR_RB 187 select SH_INTC 188 select SYS_SUPPORTS_SH_TMU 189 190config CPU_SH4 191 bool 192 select CPU_HAS_INTEVT 193 select CPU_HAS_SR_RB 194 select CPU_HAS_FPU if !CPU_SH4AL_DSP 195 select SH_INTC 196 select SYS_SUPPORTS_SH_TMU 197 select SYS_SUPPORTS_HUGETLBFS if MMU 198 199config CPU_SH4A 200 bool 201 select CPU_SH4 202 203config CPU_SH4AL_DSP 204 bool 205 select CPU_SH4A 206 select CPU_HAS_DSP 207 208config CPU_SH5 209 bool 210 select CPU_HAS_FPU 211 select SYS_SUPPORTS_SH_TMU 212 select SYS_SUPPORTS_HUGETLBFS if MMU 213 214config CPU_SHX2 215 bool 216 217config CPU_SHX3 218 bool 219 select DMA_COHERENT 220 select SYS_SUPPORTS_SMP 221 select SYS_SUPPORTS_NUMA 222 223config ARCH_SHMOBILE 224 bool 225 select ARCH_SUSPEND_POSSIBLE 226 select PM 227 228config CPU_HAS_PMU 229 depends on CPU_SH4 || CPU_SH4A 230 default y 231 bool 232 233if SUPERH32 234 235choice 236 prompt "Processor sub-type selection" 237 238# 239# Processor subtypes 240# 241 242# SH-2 Processor Support 243 244config CPU_SUBTYPE_SH7619 245 bool "Support SH7619 processor" 246 select CPU_SH2 247 select SYS_SUPPORTS_SH_CMT 248 249# SH-2A Processor Support 250 251config CPU_SUBTYPE_SH7201 252 bool "Support SH7201 processor" 253 select CPU_SH2A 254 select CPU_HAS_FPU 255 select SYS_SUPPORTS_SH_MTU2 256 257config CPU_SUBTYPE_SH7203 258 bool "Support SH7203 processor" 259 select CPU_SH2A 260 select CPU_HAS_FPU 261 select SYS_SUPPORTS_SH_CMT 262 select SYS_SUPPORTS_SH_MTU2 263 select ARCH_WANT_OPTIONAL_GPIOLIB 264 select PINCTRL 265 266config CPU_SUBTYPE_SH7206 267 bool "Support SH7206 processor" 268 select CPU_SH2A 269 select SYS_SUPPORTS_SH_CMT 270 select SYS_SUPPORTS_SH_MTU2 271 272config CPU_SUBTYPE_SH7263 273 bool "Support SH7263 processor" 274 select CPU_SH2A 275 select CPU_HAS_FPU 276 select SYS_SUPPORTS_SH_CMT 277 select SYS_SUPPORTS_SH_MTU2 278 279config CPU_SUBTYPE_SH7264 280 bool "Support SH7264 processor" 281 select CPU_SH2A 282 select CPU_HAS_FPU 283 select SYS_SUPPORTS_SH_CMT 284 select SYS_SUPPORTS_SH_MTU2 285 select PINCTRL 286 287config CPU_SUBTYPE_SH7269 288 bool "Support SH7269 processor" 289 select CPU_SH2A 290 select CPU_HAS_FPU 291 select SYS_SUPPORTS_SH_CMT 292 select SYS_SUPPORTS_SH_MTU2 293 select PINCTRL 294 295config CPU_SUBTYPE_MXG 296 bool "Support MX-G processor" 297 select CPU_SH2A 298 select SYS_SUPPORTS_SH_MTU2 299 help 300 Select MX-G if running on an R8A03022BG part. 301 302# SH-3 Processor Support 303 304config CPU_SUBTYPE_SH7705 305 bool "Support SH7705 processor" 306 select CPU_SH3 307 308config CPU_SUBTYPE_SH7706 309 bool "Support SH7706 processor" 310 select CPU_SH3 311 help 312 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU. 313 314config CPU_SUBTYPE_SH7707 315 bool "Support SH7707 processor" 316 select CPU_SH3 317 help 318 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU. 319 320config CPU_SUBTYPE_SH7708 321 bool "Support SH7708 processor" 322 select CPU_SH3 323 help 324 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or 325 if you have a 100 Mhz SH-3 HD6417708R CPU. 326 327config CPU_SUBTYPE_SH7709 328 bool "Support SH7709 processor" 329 select CPU_SH3 330 help 331 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU. 332 333config CPU_SUBTYPE_SH7710 334 bool "Support SH7710 processor" 335 select CPU_SH3 336 select CPU_HAS_DSP 337 help 338 Select SH7710 if you have a SH3-DSP SH7710 CPU. 339 340config CPU_SUBTYPE_SH7712 341 bool "Support SH7712 processor" 342 select CPU_SH3 343 select CPU_HAS_DSP 344 help 345 Select SH7712 if you have a SH3-DSP SH7712 CPU. 346 347config CPU_SUBTYPE_SH7720 348 bool "Support SH7720 processor" 349 select CPU_SH3 350 select CPU_HAS_DSP 351 select SYS_SUPPORTS_SH_CMT 352 select ARCH_WANT_OPTIONAL_GPIOLIB 353 select USB_OHCI_SH if USB_OHCI_HCD 354 select PINCTRL 355 help 356 Select SH7720 if you have a SH3-DSP SH7720 CPU. 357 358config CPU_SUBTYPE_SH7721 359 bool "Support SH7721 processor" 360 select CPU_SH3 361 select CPU_HAS_DSP 362 select SYS_SUPPORTS_SH_CMT 363 select USB_OHCI_SH if USB_OHCI_HCD 364 help 365 Select SH7721 if you have a SH3-DSP SH7721 CPU. 366 367# SH-4 Processor Support 368 369config CPU_SUBTYPE_SH7750 370 bool "Support SH7750 processor" 371 select CPU_SH4 372 help 373 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU. 374 375config CPU_SUBTYPE_SH7091 376 bool "Support SH7091 processor" 377 select CPU_SH4 378 help 379 Select SH7091 if you have an SH-4 based Sega device (such as 380 the Dreamcast, Naomi, and Naomi 2). 381 382config CPU_SUBTYPE_SH7750R 383 bool "Support SH7750R processor" 384 select CPU_SH4 385 386config CPU_SUBTYPE_SH7750S 387 bool "Support SH7750S processor" 388 select CPU_SH4 389 390config CPU_SUBTYPE_SH7751 391 bool "Support SH7751 processor" 392 select CPU_SH4 393 help 394 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU, 395 or if you have a HD6417751R CPU. 396 397config CPU_SUBTYPE_SH7751R 398 bool "Support SH7751R processor" 399 select CPU_SH4 400 401config CPU_SUBTYPE_SH7760 402 bool "Support SH7760 processor" 403 select CPU_SH4 404 405config CPU_SUBTYPE_SH4_202 406 bool "Support SH4-202 processor" 407 select CPU_SH4 408 409# SH-4A Processor Support 410 411config CPU_SUBTYPE_SH7723 412 bool "Support SH7723 processor" 413 select CPU_SH4A 414 select CPU_SHX2 415 select ARCH_SHMOBILE 416 select ARCH_SPARSEMEM_ENABLE 417 select SYS_SUPPORTS_SH_CMT 418 select ARCH_WANT_OPTIONAL_GPIOLIB 419 select PINCTRL 420 help 421 Select SH7723 if you have an SH-MobileR2 CPU. 422 423config CPU_SUBTYPE_SH7724 424 bool "Support SH7724 processor" 425 select CPU_SH4A 426 select CPU_SHX2 427 select ARCH_SHMOBILE 428 select ARCH_SPARSEMEM_ENABLE 429 select SYS_SUPPORTS_SH_CMT 430 select ARCH_WANT_OPTIONAL_GPIOLIB 431 select PINCTRL 432 help 433 Select SH7724 if you have an SH-MobileR2R CPU. 434 435config CPU_SUBTYPE_SH7734 436 bool "Support SH7734 processor" 437 select CPU_SH4A 438 select CPU_SHX2 439 select ARCH_WANT_OPTIONAL_GPIOLIB 440 select PINCTRL 441 help 442 Select SH7734 if you have a SH4A SH7734 CPU. 443 444config CPU_SUBTYPE_SH7757 445 bool "Support SH7757 processor" 446 select CPU_SH4A 447 select CPU_SHX2 448 select ARCH_WANT_OPTIONAL_GPIOLIB 449 select PINCTRL 450 help 451 Select SH7757 if you have a SH4A SH7757 CPU. 452 453config CPU_SUBTYPE_SH7763 454 bool "Support SH7763 processor" 455 select CPU_SH4A 456 select USB_OHCI_SH if USB_OHCI_HCD 457 help 458 Select SH7763 if you have a SH4A SH7763(R5S77631) CPU. 459 460config CPU_SUBTYPE_SH7770 461 bool "Support SH7770 processor" 462 select CPU_SH4A 463 464config CPU_SUBTYPE_SH7780 465 bool "Support SH7780 processor" 466 select CPU_SH4A 467 468config CPU_SUBTYPE_SH7785 469 bool "Support SH7785 processor" 470 select CPU_SH4A 471 select CPU_SHX2 472 select ARCH_SPARSEMEM_ENABLE 473 select SYS_SUPPORTS_NUMA 474 select ARCH_WANT_OPTIONAL_GPIOLIB 475 select PINCTRL 476 477config CPU_SUBTYPE_SH7786 478 bool "Support SH7786 processor" 479 select CPU_SH4A 480 select CPU_SHX3 481 select CPU_HAS_PTEAEX 482 select GENERIC_CLOCKEVENTS_BROADCAST if SMP 483 select ARCH_WANT_OPTIONAL_GPIOLIB 484 select USB_OHCI_SH if USB_OHCI_HCD 485 select USB_EHCI_SH if USB_EHCI_HCD 486 select PINCTRL 487 488config CPU_SUBTYPE_SHX3 489 bool "Support SH-X3 processor" 490 select CPU_SH4A 491 select CPU_SHX3 492 select GENERIC_CLOCKEVENTS_BROADCAST if SMP 493 select ARCH_REQUIRE_GPIOLIB 494 select PINCTRL 495 496# SH4AL-DSP Processor Support 497 498config CPU_SUBTYPE_SH7343 499 bool "Support SH7343 processor" 500 select CPU_SH4AL_DSP 501 select ARCH_SHMOBILE 502 select SYS_SUPPORTS_SH_CMT 503 504config CPU_SUBTYPE_SH7722 505 bool "Support SH7722 processor" 506 select CPU_SH4AL_DSP 507 select CPU_SHX2 508 select ARCH_SHMOBILE 509 select ARCH_SPARSEMEM_ENABLE 510 select SYS_SUPPORTS_NUMA 511 select SYS_SUPPORTS_SH_CMT 512 select ARCH_WANT_OPTIONAL_GPIOLIB 513 select PINCTRL 514 515config CPU_SUBTYPE_SH7366 516 bool "Support SH7366 processor" 517 select CPU_SH4AL_DSP 518 select CPU_SHX2 519 select ARCH_SHMOBILE 520 select ARCH_SPARSEMEM_ENABLE 521 select SYS_SUPPORTS_NUMA 522 select SYS_SUPPORTS_SH_CMT 523 524endchoice 525 526endif 527 528if SUPERH64 529 530choice 531 prompt "Processor sub-type selection" 532 533# SH-5 Processor Support 534 535config CPU_SUBTYPE_SH5_101 536 bool "Support SH5-101 processor" 537 select CPU_SH5 538 539config CPU_SUBTYPE_SH5_103 540 bool "Support SH5-103 processor" 541 select CPU_SH5 542 543endchoice 544 545endif 546 547source "arch/sh/mm/Kconfig" 548 549source "arch/sh/Kconfig.cpu" 550 551source "arch/sh/boards/Kconfig" 552 553menu "Timer and clock configuration" 554 555config SH_PCLK_FREQ 556 int "Peripheral clock frequency (in Hz)" 557 depends on SH_CLK_CPG_LEGACY 558 default "31250000" if CPU_SUBTYPE_SH7619 559 default "33333333" if CPU_SUBTYPE_SH7770 || \ 560 CPU_SUBTYPE_SH7760 || \ 561 CPU_SUBTYPE_SH7705 || \ 562 CPU_SUBTYPE_SH7203 || \ 563 CPU_SUBTYPE_SH7206 || \ 564 CPU_SUBTYPE_SH7263 || \ 565 CPU_SUBTYPE_MXG 566 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R 567 default "66000000" if CPU_SUBTYPE_SH4_202 568 default "50000000" 569 help 570 This option is used to specify the peripheral clock frequency. 571 This is necessary for determining the reference clock value on 572 platforms lacking an RTC. 573 574config SH_CLK_CPG 575 def_bool y 576 577config SH_CLK_CPG_LEGACY 578 depends on SH_CLK_CPG 579 def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \ 580 !CPU_SHX3 && !CPU_SUBTYPE_SH7757 && \ 581 !CPU_SUBTYPE_SH7734 && !CPU_SUBTYPE_SH7264 && \ 582 !CPU_SUBTYPE_SH7269 583 584endmenu 585 586menu "CPU Frequency scaling" 587source "drivers/cpufreq/Kconfig" 588endmenu 589 590source "arch/sh/drivers/Kconfig" 591 592endmenu 593 594menu "Kernel features" 595 596source kernel/Kconfig.hz 597 598config KEXEC 599 bool "kexec system call (EXPERIMENTAL)" 600 depends on SUPERH32 && MMU 601 help 602 kexec is a system call that implements the ability to shutdown your 603 current kernel, and to start another kernel. It is like a reboot 604 but it is independent of the system firmware. And like a reboot 605 you can start any kernel with it, not just Linux. 606 607 The name comes from the similarity to the exec system call. 608 609 It is an ongoing process to be certain the hardware in a machine 610 is properly shutdown, so do not be surprised if this code does not 611 initially work for you. As of this writing the exact hardware 612 interface is strongly in flux, so no good recommendation can be 613 made. 614 615config CRASH_DUMP 616 bool "kernel crash dumps (EXPERIMENTAL)" 617 depends on SUPERH32 && BROKEN_ON_SMP 618 help 619 Generate crash dump after being started by kexec. 620 This should be normally only set in special crash dump kernels 621 which are loaded in the main kernel with kexec-tools into 622 a specially reserved region and then later executed after 623 a crash by kdump/kexec. The crash dump kernel must be compiled 624 to a memory address not used by the main kernel using 625 PHYSICAL_START. 626 627 For more details see Documentation/kdump/kdump.txt 628 629config KEXEC_JUMP 630 bool "kexec jump (EXPERIMENTAL)" 631 depends on SUPERH32 && KEXEC && HIBERNATION 632 help 633 Jump between original kernel and kexeced kernel and invoke 634 code via KEXEC 635 636config PHYSICAL_START 637 hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP) 638 default MEMORY_START 639 ---help--- 640 This gives the physical address where the kernel is loaded 641 and is ordinarily the same as MEMORY_START. 642 643 Different values are primarily used in the case of kexec on panic 644 where the fail safe kernel needs to run at a different address 645 than the panic-ed kernel. 646 647config SECCOMP 648 bool "Enable seccomp to safely compute untrusted bytecode" 649 depends on PROC_FS 650 help 651 This kernel feature is useful for number crunching applications 652 that may need to compute untrusted bytecode during their 653 execution. By using pipes or other transports made available to 654 the process as file descriptors supporting the read/write 655 syscalls, it's possible to isolate those applications in 656 their own address space using seccomp. Once seccomp is 657 enabled via prctl, it cannot be disabled and the task is only 658 allowed to execute a few safe syscalls defined by each seccomp 659 mode. 660 661 If unsure, say N. 662 663config SMP 664 bool "Symmetric multi-processing support" 665 depends on SYS_SUPPORTS_SMP 666 ---help--- 667 This enables support for systems with more than one CPU. If you have 668 a system with only one CPU, say N. If you have a system with more 669 than one CPU, say Y. 670 671 If you say N here, the kernel will run on uni- and multiprocessor 672 machines, but will use only one CPU of a multiprocessor machine. If 673 you say Y here, the kernel will run on many, but not all, 674 uniprocessor machines. On a uniprocessor machine, the kernel 675 will run faster if you say N here. 676 677 People using multiprocessor machines who say Y here should also say 678 Y to "Enhanced Real Time Clock Support", below. 679 680 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO 681 available at <http://www.tldp.org/docs.html#howto>. 682 683 If you don't know what to do here, say N. 684 685config NR_CPUS 686 int "Maximum number of CPUs (2-32)" 687 range 2 32 688 depends on SMP 689 default "4" if CPU_SUBTYPE_SHX3 690 default "2" 691 help 692 This allows you to specify the maximum number of CPUs which this 693 kernel will support. The maximum supported value is 32 and the 694 minimum value which makes sense is 2. 695 696 This is purely to save memory - each supported CPU adds 697 approximately eight kilobytes to the kernel image. 698 699config HOTPLUG_CPU 700 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" 701 depends on SMP 702 help 703 Say Y here to experiment with turning CPUs off and on. CPUs 704 can be controlled through /sys/devices/system/cpu. 705 706source "kernel/Kconfig.preempt" 707 708config GUSA 709 def_bool y 710 depends on !SMP && SUPERH32 711 help 712 This enables support for gUSA (general UserSpace Atomicity). 713 This is the default implementation for both UP and non-ll/sc 714 CPUs, and is used by the libc, amongst others. 715 716 For additional information, design information can be found 717 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>. 718 719 This should only be disabled for special cases where alternate 720 atomicity implementations exist. 721 722config GUSA_RB 723 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)" 724 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A) 725 help 726 Enabling this option will allow the kernel to implement some 727 atomic operations using a software implementation of load-locked/ 728 store-conditional (LLSC). On machines which do not have hardware 729 LLSC, this should be more efficient than the other alternative of 730 disabling interrupts around the atomic sequence. 731 732config HW_PERF_EVENTS 733 bool "Enable hardware performance counter support for perf events" 734 depends on PERF_EVENTS && CPU_HAS_PMU 735 default y 736 help 737 Enable hardware performance counter support for perf events. If 738 disabled, perf events will use software events only. 739 740source "drivers/sh/Kconfig" 741 742endmenu 743 744menu "Boot options" 745 746config ZERO_PAGE_OFFSET 747 hex 748 default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \ 749 SH_7751_SOLUTION_ENGINE 750 default "0x00004000" if PAGE_SIZE_16KB || SH_SH03 751 default "0x00002000" if PAGE_SIZE_8KB 752 default "0x00001000" 753 help 754 This sets the default offset of zero page. 755 756config BOOT_LINK_OFFSET 757 hex 758 default "0x00210000" if SH_SHMIN 759 default "0x00400000" if SH_CAYMAN 760 default "0x00810000" if SH_7780_SOLUTION_ENGINE 761 default "0x009e0000" if SH_TITAN 762 default "0x01800000" if SH_SDK7780 763 default "0x02000000" if SH_EDOSK7760 764 default "0x00800000" 765 help 766 This option allows you to set the link address offset of the zImage. 767 This can be useful if you are on a board which has a small amount of 768 memory. 769 770config ENTRY_OFFSET 771 hex 772 default "0x00001000" if PAGE_SIZE_4KB 773 default "0x00002000" if PAGE_SIZE_8KB 774 default "0x00004000" if PAGE_SIZE_16KB 775 default "0x00010000" if PAGE_SIZE_64KB 776 default "0x00000000" 777 778config ROMIMAGE_MMCIF 779 bool "Include MMCIF loader in romImage (EXPERIMENTAL)" 780 depends on CPU_SUBTYPE_SH7724 781 help 782 Say Y here to include experimental MMCIF loading code in 783 romImage. With this enabled it is possible to write the romImage 784 kernel image to an MMC card and boot the kernel straight from 785 the reset vector. At reset the processor Mask ROM will load the 786 first part of the romImage which in turn loads the rest the kernel 787 image to RAM using the MMCIF hardware block. 788 789choice 790 prompt "Kernel command line" 791 optional 792 default CMDLINE_OVERWRITE 793 help 794 Setting this option allows the kernel command line arguments 795 to be set. 796 797config CMDLINE_OVERWRITE 798 bool "Overwrite bootloader kernel arguments" 799 help 800 Given string will overwrite any arguments passed in by 801 a bootloader. 802 803config CMDLINE_EXTEND 804 bool "Extend bootloader kernel arguments" 805 help 806 Given string will be concatenated with arguments passed in 807 by a bootloader. 808 809endchoice 810 811config CMDLINE 812 string "Kernel command line arguments string" 813 depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND 814 default "console=ttySC1,115200" 815 816endmenu 817 818menu "Bus options" 819 820config SUPERHYWAY 821 tristate "SuperHyway Bus support" 822 depends on CPU_SUBTYPE_SH4_202 823 824config MAPLE 825 bool "Maple Bus support" 826 depends on SH_DREAMCAST 827 help 828 The Maple Bus is SEGA's serial communication bus for peripherals 829 on the Dreamcast. Without this bus support you won't be able to 830 get your Dreamcast keyboard etc to work, so most users 831 probably want to say 'Y' here, unless you are only using the 832 Dreamcast with a serial line terminal or a remote network 833 connection. 834 835config PCI 836 bool "PCI support" 837 depends on SYS_SUPPORTS_PCI 838 select PCI_DOMAINS 839 select GENERIC_PCI_IOMAP 840 select NO_GENERIC_PCI_IOPORT_MAP 841 help 842 Find out whether you have a PCI motherboard. PCI is the name of a 843 bus system, i.e. the way the CPU talks to the other stuff inside 844 your box. If you have PCI, say Y, otherwise N. 845 846config PCI_DOMAINS 847 bool 848 849source "drivers/pci/pcie/Kconfig" 850 851source "drivers/pci/Kconfig" 852 853source "drivers/pcmcia/Kconfig" 854 855source "drivers/pci/hotplug/Kconfig" 856 857endmenu 858 859menu "Executable file formats" 860 861source "fs/Kconfig.binfmt" 862 863endmenu 864 865menu "Power management options (EXPERIMENTAL)" 866 867source "kernel/power/Kconfig" 868 869source "drivers/cpuidle/Kconfig" 870 871endmenu 872 873source "net/Kconfig" 874 875source "drivers/Kconfig" 876 877source "fs/Kconfig" 878 879source "arch/sh/Kconfig.debug" 880 881source "security/Kconfig" 882 883source "crypto/Kconfig" 884 885source "lib/Kconfig" 886