1config SUPERH 2 def_bool y 3 select ARCH_MIGHT_HAVE_PC_PARPORT 4 select HAVE_PATA_PLATFORM 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 165config PGTABLE_LEVELS 166 default 3 if X2TLB 167 default 2 168 169source "init/Kconfig" 170 171source "kernel/Kconfig.freezer" 172 173menu "System type" 174 175# 176# Processor families 177# 178config CPU_SH2 179 bool 180 select SH_INTC 181 182config CPU_SH2A 183 bool 184 select CPU_SH2 185 select UNCACHED_MAPPING 186 187config CPU_SH3 188 bool 189 select CPU_HAS_INTEVT 190 select CPU_HAS_SR_RB 191 select SH_INTC 192 select SYS_SUPPORTS_SH_TMU 193 194config CPU_SH4 195 bool 196 select CPU_HAS_INTEVT 197 select CPU_HAS_SR_RB 198 select CPU_HAS_FPU if !CPU_SH4AL_DSP 199 select SH_INTC 200 select SYS_SUPPORTS_SH_TMU 201 select SYS_SUPPORTS_HUGETLBFS if MMU 202 203config CPU_SH4A 204 bool 205 select CPU_SH4 206 207config CPU_SH4AL_DSP 208 bool 209 select CPU_SH4A 210 select CPU_HAS_DSP 211 212config CPU_SH5 213 bool 214 select CPU_HAS_FPU 215 select SYS_SUPPORTS_SH_TMU 216 select SYS_SUPPORTS_HUGETLBFS if MMU 217 218config CPU_SHX2 219 bool 220 221config CPU_SHX3 222 bool 223 select DMA_COHERENT 224 select SYS_SUPPORTS_SMP 225 select SYS_SUPPORTS_NUMA 226 227config ARCH_SHMOBILE 228 bool 229 select ARCH_SUSPEND_POSSIBLE 230 select PM 231 232config CPU_HAS_PMU 233 depends on CPU_SH4 || CPU_SH4A 234 default y 235 bool 236 237if SUPERH32 238 239choice 240 prompt "Processor sub-type selection" 241 242# 243# Processor subtypes 244# 245 246# SH-2 Processor Support 247 248config CPU_SUBTYPE_SH7619 249 bool "Support SH7619 processor" 250 select CPU_SH2 251 select SYS_SUPPORTS_SH_CMT 252 253# SH-2A Processor Support 254 255config CPU_SUBTYPE_SH7201 256 bool "Support SH7201 processor" 257 select CPU_SH2A 258 select CPU_HAS_FPU 259 select SYS_SUPPORTS_SH_MTU2 260 261config CPU_SUBTYPE_SH7203 262 bool "Support SH7203 processor" 263 select CPU_SH2A 264 select CPU_HAS_FPU 265 select SYS_SUPPORTS_SH_CMT 266 select SYS_SUPPORTS_SH_MTU2 267 select ARCH_WANT_OPTIONAL_GPIOLIB 268 select PINCTRL 269 270config CPU_SUBTYPE_SH7206 271 bool "Support SH7206 processor" 272 select CPU_SH2A 273 select SYS_SUPPORTS_SH_CMT 274 select SYS_SUPPORTS_SH_MTU2 275 276config CPU_SUBTYPE_SH7263 277 bool "Support SH7263 processor" 278 select CPU_SH2A 279 select CPU_HAS_FPU 280 select SYS_SUPPORTS_SH_CMT 281 select SYS_SUPPORTS_SH_MTU2 282 283config CPU_SUBTYPE_SH7264 284 bool "Support SH7264 processor" 285 select CPU_SH2A 286 select CPU_HAS_FPU 287 select SYS_SUPPORTS_SH_CMT 288 select SYS_SUPPORTS_SH_MTU2 289 select PINCTRL 290 291config CPU_SUBTYPE_SH7269 292 bool "Support SH7269 processor" 293 select CPU_SH2A 294 select CPU_HAS_FPU 295 select SYS_SUPPORTS_SH_CMT 296 select SYS_SUPPORTS_SH_MTU2 297 select PINCTRL 298 299config CPU_SUBTYPE_MXG 300 bool "Support MX-G processor" 301 select CPU_SH2A 302 select SYS_SUPPORTS_SH_MTU2 303 help 304 Select MX-G if running on an R8A03022BG part. 305 306# SH-3 Processor Support 307 308config CPU_SUBTYPE_SH7705 309 bool "Support SH7705 processor" 310 select CPU_SH3 311 312config CPU_SUBTYPE_SH7706 313 bool "Support SH7706 processor" 314 select CPU_SH3 315 help 316 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU. 317 318config CPU_SUBTYPE_SH7707 319 bool "Support SH7707 processor" 320 select CPU_SH3 321 help 322 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU. 323 324config CPU_SUBTYPE_SH7708 325 bool "Support SH7708 processor" 326 select CPU_SH3 327 help 328 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or 329 if you have a 100 Mhz SH-3 HD6417708R CPU. 330 331config CPU_SUBTYPE_SH7709 332 bool "Support SH7709 processor" 333 select CPU_SH3 334 help 335 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU. 336 337config CPU_SUBTYPE_SH7710 338 bool "Support SH7710 processor" 339 select CPU_SH3 340 select CPU_HAS_DSP 341 help 342 Select SH7710 if you have a SH3-DSP SH7710 CPU. 343 344config CPU_SUBTYPE_SH7712 345 bool "Support SH7712 processor" 346 select CPU_SH3 347 select CPU_HAS_DSP 348 help 349 Select SH7712 if you have a SH3-DSP SH7712 CPU. 350 351config CPU_SUBTYPE_SH7720 352 bool "Support SH7720 processor" 353 select CPU_SH3 354 select CPU_HAS_DSP 355 select SYS_SUPPORTS_SH_CMT 356 select ARCH_WANT_OPTIONAL_GPIOLIB 357 select USB_OHCI_SH if USB_OHCI_HCD 358 select PINCTRL 359 help 360 Select SH7720 if you have a SH3-DSP SH7720 CPU. 361 362config CPU_SUBTYPE_SH7721 363 bool "Support SH7721 processor" 364 select CPU_SH3 365 select CPU_HAS_DSP 366 select SYS_SUPPORTS_SH_CMT 367 select USB_OHCI_SH if USB_OHCI_HCD 368 help 369 Select SH7721 if you have a SH3-DSP SH7721 CPU. 370 371# SH-4 Processor Support 372 373config CPU_SUBTYPE_SH7750 374 bool "Support SH7750 processor" 375 select CPU_SH4 376 help 377 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU. 378 379config CPU_SUBTYPE_SH7091 380 bool "Support SH7091 processor" 381 select CPU_SH4 382 help 383 Select SH7091 if you have an SH-4 based Sega device (such as 384 the Dreamcast, Naomi, and Naomi 2). 385 386config CPU_SUBTYPE_SH7750R 387 bool "Support SH7750R processor" 388 select CPU_SH4 389 390config CPU_SUBTYPE_SH7750S 391 bool "Support SH7750S processor" 392 select CPU_SH4 393 394config CPU_SUBTYPE_SH7751 395 bool "Support SH7751 processor" 396 select CPU_SH4 397 help 398 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU, 399 or if you have a HD6417751R CPU. 400 401config CPU_SUBTYPE_SH7751R 402 bool "Support SH7751R processor" 403 select CPU_SH4 404 405config CPU_SUBTYPE_SH7760 406 bool "Support SH7760 processor" 407 select CPU_SH4 408 409config CPU_SUBTYPE_SH4_202 410 bool "Support SH4-202 processor" 411 select CPU_SH4 412 413# SH-4A Processor Support 414 415config CPU_SUBTYPE_SH7723 416 bool "Support SH7723 processor" 417 select CPU_SH4A 418 select CPU_SHX2 419 select ARCH_SHMOBILE 420 select ARCH_SPARSEMEM_ENABLE 421 select SYS_SUPPORTS_SH_CMT 422 select ARCH_WANT_OPTIONAL_GPIOLIB 423 select PINCTRL 424 help 425 Select SH7723 if you have an SH-MobileR2 CPU. 426 427config CPU_SUBTYPE_SH7724 428 bool "Support SH7724 processor" 429 select CPU_SH4A 430 select CPU_SHX2 431 select ARCH_SHMOBILE 432 select ARCH_SPARSEMEM_ENABLE 433 select SYS_SUPPORTS_SH_CMT 434 select ARCH_WANT_OPTIONAL_GPIOLIB 435 select PINCTRL 436 help 437 Select SH7724 if you have an SH-MobileR2R CPU. 438 439config CPU_SUBTYPE_SH7734 440 bool "Support SH7734 processor" 441 select CPU_SH4A 442 select CPU_SHX2 443 select ARCH_WANT_OPTIONAL_GPIOLIB 444 select PINCTRL 445 help 446 Select SH7734 if you have a SH4A SH7734 CPU. 447 448config CPU_SUBTYPE_SH7757 449 bool "Support SH7757 processor" 450 select CPU_SH4A 451 select CPU_SHX2 452 select ARCH_WANT_OPTIONAL_GPIOLIB 453 select PINCTRL 454 help 455 Select SH7757 if you have a SH4A SH7757 CPU. 456 457config CPU_SUBTYPE_SH7763 458 bool "Support SH7763 processor" 459 select CPU_SH4A 460 select USB_OHCI_SH if USB_OHCI_HCD 461 help 462 Select SH7763 if you have a SH4A SH7763(R5S77631) CPU. 463 464config CPU_SUBTYPE_SH7770 465 bool "Support SH7770 processor" 466 select CPU_SH4A 467 468config CPU_SUBTYPE_SH7780 469 bool "Support SH7780 processor" 470 select CPU_SH4A 471 472config CPU_SUBTYPE_SH7785 473 bool "Support SH7785 processor" 474 select CPU_SH4A 475 select CPU_SHX2 476 select ARCH_SPARSEMEM_ENABLE 477 select SYS_SUPPORTS_NUMA 478 select ARCH_WANT_OPTIONAL_GPIOLIB 479 select PINCTRL 480 481config CPU_SUBTYPE_SH7786 482 bool "Support SH7786 processor" 483 select CPU_SH4A 484 select CPU_SHX3 485 select CPU_HAS_PTEAEX 486 select GENERIC_CLOCKEVENTS_BROADCAST if SMP 487 select ARCH_WANT_OPTIONAL_GPIOLIB 488 select USB_OHCI_SH if USB_OHCI_HCD 489 select USB_EHCI_SH if USB_EHCI_HCD 490 select PINCTRL 491 492config CPU_SUBTYPE_SHX3 493 bool "Support SH-X3 processor" 494 select CPU_SH4A 495 select CPU_SHX3 496 select GENERIC_CLOCKEVENTS_BROADCAST if SMP 497 select ARCH_REQUIRE_GPIOLIB 498 select PINCTRL 499 500# SH4AL-DSP Processor Support 501 502config CPU_SUBTYPE_SH7343 503 bool "Support SH7343 processor" 504 select CPU_SH4AL_DSP 505 select ARCH_SHMOBILE 506 select SYS_SUPPORTS_SH_CMT 507 508config CPU_SUBTYPE_SH7722 509 bool "Support SH7722 processor" 510 select CPU_SH4AL_DSP 511 select CPU_SHX2 512 select ARCH_SHMOBILE 513 select ARCH_SPARSEMEM_ENABLE 514 select SYS_SUPPORTS_NUMA 515 select SYS_SUPPORTS_SH_CMT 516 select ARCH_WANT_OPTIONAL_GPIOLIB 517 select PINCTRL 518 519config CPU_SUBTYPE_SH7366 520 bool "Support SH7366 processor" 521 select CPU_SH4AL_DSP 522 select CPU_SHX2 523 select ARCH_SHMOBILE 524 select ARCH_SPARSEMEM_ENABLE 525 select SYS_SUPPORTS_NUMA 526 select SYS_SUPPORTS_SH_CMT 527 528endchoice 529 530endif 531 532if SUPERH64 533 534choice 535 prompt "Processor sub-type selection" 536 537# SH-5 Processor Support 538 539config CPU_SUBTYPE_SH5_101 540 bool "Support SH5-101 processor" 541 select CPU_SH5 542 543config CPU_SUBTYPE_SH5_103 544 bool "Support SH5-103 processor" 545 select CPU_SH5 546 547endchoice 548 549endif 550 551source "arch/sh/mm/Kconfig" 552 553source "arch/sh/Kconfig.cpu" 554 555source "arch/sh/boards/Kconfig" 556 557menu "Timer and clock configuration" 558 559config SH_PCLK_FREQ 560 int "Peripheral clock frequency (in Hz)" 561 depends on SH_CLK_CPG_LEGACY 562 default "31250000" if CPU_SUBTYPE_SH7619 563 default "33333333" if CPU_SUBTYPE_SH7770 || \ 564 CPU_SUBTYPE_SH7760 || \ 565 CPU_SUBTYPE_SH7705 || \ 566 CPU_SUBTYPE_SH7203 || \ 567 CPU_SUBTYPE_SH7206 || \ 568 CPU_SUBTYPE_SH7263 || \ 569 CPU_SUBTYPE_MXG 570 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R 571 default "66000000" if CPU_SUBTYPE_SH4_202 572 default "50000000" 573 help 574 This option is used to specify the peripheral clock frequency. 575 This is necessary for determining the reference clock value on 576 platforms lacking an RTC. 577 578config SH_CLK_CPG 579 def_bool y 580 581config SH_CLK_CPG_LEGACY 582 depends on SH_CLK_CPG 583 def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \ 584 !CPU_SHX3 && !CPU_SUBTYPE_SH7757 && \ 585 !CPU_SUBTYPE_SH7734 && !CPU_SUBTYPE_SH7264 && \ 586 !CPU_SUBTYPE_SH7269 587 588endmenu 589 590menu "CPU Frequency scaling" 591source "drivers/cpufreq/Kconfig" 592endmenu 593 594source "arch/sh/drivers/Kconfig" 595 596endmenu 597 598menu "Kernel features" 599 600source kernel/Kconfig.hz 601 602config KEXEC 603 bool "kexec system call (EXPERIMENTAL)" 604 depends on SUPERH32 && MMU 605 help 606 kexec is a system call that implements the ability to shutdown your 607 current kernel, and to start another kernel. It is like a reboot 608 but it is independent of the system firmware. And like a reboot 609 you can start any kernel with it, not just Linux. 610 611 The name comes from the similarity to the exec system call. 612 613 It is an ongoing process to be certain the hardware in a machine 614 is properly shutdown, so do not be surprised if this code does not 615 initially work for you. As of this writing the exact hardware 616 interface is strongly in flux, so no good recommendation can be 617 made. 618 619config CRASH_DUMP 620 bool "kernel crash dumps (EXPERIMENTAL)" 621 depends on SUPERH32 && BROKEN_ON_SMP 622 help 623 Generate crash dump after being started by kexec. 624 This should be normally only set in special crash dump kernels 625 which are loaded in the main kernel with kexec-tools into 626 a specially reserved region and then later executed after 627 a crash by kdump/kexec. The crash dump kernel must be compiled 628 to a memory address not used by the main kernel using 629 PHYSICAL_START. 630 631 For more details see Documentation/kdump/kdump.txt 632 633config KEXEC_JUMP 634 bool "kexec jump (EXPERIMENTAL)" 635 depends on SUPERH32 && KEXEC && HIBERNATION 636 help 637 Jump between original kernel and kexeced kernel and invoke 638 code via KEXEC 639 640config PHYSICAL_START 641 hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP) 642 default MEMORY_START 643 ---help--- 644 This gives the physical address where the kernel is loaded 645 and is ordinarily the same as MEMORY_START. 646 647 Different values are primarily used in the case of kexec on panic 648 where the fail safe kernel needs to run at a different address 649 than the panic-ed kernel. 650 651config SECCOMP 652 bool "Enable seccomp to safely compute untrusted bytecode" 653 depends on PROC_FS 654 help 655 This kernel feature is useful for number crunching applications 656 that may need to compute untrusted bytecode during their 657 execution. By using pipes or other transports made available to 658 the process as file descriptors supporting the read/write 659 syscalls, it's possible to isolate those applications in 660 their own address space using seccomp. Once seccomp is 661 enabled via prctl, it cannot be disabled and the task is only 662 allowed to execute a few safe syscalls defined by each seccomp 663 mode. 664 665 If unsure, say N. 666 667config SMP 668 bool "Symmetric multi-processing support" 669 depends on SYS_SUPPORTS_SMP 670 ---help--- 671 This enables support for systems with more than one CPU. If you have 672 a system with only one CPU, say N. If you have a system with more 673 than one CPU, say Y. 674 675 If you say N here, the kernel will run on uni- and multiprocessor 676 machines, but will use only one CPU of a multiprocessor machine. If 677 you say Y here, the kernel will run on many, but not all, 678 uniprocessor machines. On a uniprocessor machine, the kernel 679 will run faster if you say N here. 680 681 People using multiprocessor machines who say Y here should also say 682 Y to "Enhanced Real Time Clock Support", below. 683 684 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO 685 available at <http://www.tldp.org/docs.html#howto>. 686 687 If you don't know what to do here, say N. 688 689config NR_CPUS 690 int "Maximum number of CPUs (2-32)" 691 range 2 32 692 depends on SMP 693 default "4" if CPU_SUBTYPE_SHX3 694 default "2" 695 help 696 This allows you to specify the maximum number of CPUs which this 697 kernel will support. The maximum supported value is 32 and the 698 minimum value which makes sense is 2. 699 700 This is purely to save memory - each supported CPU adds 701 approximately eight kilobytes to the kernel image. 702 703config HOTPLUG_CPU 704 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" 705 depends on SMP 706 help 707 Say Y here to experiment with turning CPUs off and on. CPUs 708 can be controlled through /sys/devices/system/cpu. 709 710source "kernel/Kconfig.preempt" 711 712config GUSA 713 def_bool y 714 depends on !SMP && SUPERH32 715 help 716 This enables support for gUSA (general UserSpace Atomicity). 717 This is the default implementation for both UP and non-ll/sc 718 CPUs, and is used by the libc, amongst others. 719 720 For additional information, design information can be found 721 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>. 722 723 This should only be disabled for special cases where alternate 724 atomicity implementations exist. 725 726config GUSA_RB 727 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)" 728 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A) 729 help 730 Enabling this option will allow the kernel to implement some 731 atomic operations using a software implementation of load-locked/ 732 store-conditional (LLSC). On machines which do not have hardware 733 LLSC, this should be more efficient than the other alternative of 734 disabling interrupts around the atomic sequence. 735 736config HW_PERF_EVENTS 737 bool "Enable hardware performance counter support for perf events" 738 depends on PERF_EVENTS && CPU_HAS_PMU 739 default y 740 help 741 Enable hardware performance counter support for perf events. If 742 disabled, perf events will use software events only. 743 744source "drivers/sh/Kconfig" 745 746endmenu 747 748menu "Boot options" 749 750config ZERO_PAGE_OFFSET 751 hex 752 default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \ 753 SH_7751_SOLUTION_ENGINE 754 default "0x00004000" if PAGE_SIZE_16KB || SH_SH03 755 default "0x00002000" if PAGE_SIZE_8KB 756 default "0x00001000" 757 help 758 This sets the default offset of zero page. 759 760config BOOT_LINK_OFFSET 761 hex 762 default "0x00210000" if SH_SHMIN 763 default "0x00400000" if SH_CAYMAN 764 default "0x00810000" if SH_7780_SOLUTION_ENGINE 765 default "0x009e0000" if SH_TITAN 766 default "0x01800000" if SH_SDK7780 767 default "0x02000000" if SH_EDOSK7760 768 default "0x00800000" 769 help 770 This option allows you to set the link address offset of the zImage. 771 This can be useful if you are on a board which has a small amount of 772 memory. 773 774config ENTRY_OFFSET 775 hex 776 default "0x00001000" if PAGE_SIZE_4KB 777 default "0x00002000" if PAGE_SIZE_8KB 778 default "0x00004000" if PAGE_SIZE_16KB 779 default "0x00010000" if PAGE_SIZE_64KB 780 default "0x00000000" 781 782config ROMIMAGE_MMCIF 783 bool "Include MMCIF loader in romImage (EXPERIMENTAL)" 784 depends on CPU_SUBTYPE_SH7724 785 help 786 Say Y here to include experimental MMCIF loading code in 787 romImage. With this enabled it is possible to write the romImage 788 kernel image to an MMC card and boot the kernel straight from 789 the reset vector. At reset the processor Mask ROM will load the 790 first part of the romImage which in turn loads the rest the kernel 791 image to RAM using the MMCIF hardware block. 792 793choice 794 prompt "Kernel command line" 795 optional 796 default CMDLINE_OVERWRITE 797 help 798 Setting this option allows the kernel command line arguments 799 to be set. 800 801config CMDLINE_OVERWRITE 802 bool "Overwrite bootloader kernel arguments" 803 help 804 Given string will overwrite any arguments passed in by 805 a bootloader. 806 807config CMDLINE_EXTEND 808 bool "Extend bootloader kernel arguments" 809 help 810 Given string will be concatenated with arguments passed in 811 by a bootloader. 812 813endchoice 814 815config CMDLINE 816 string "Kernel command line arguments string" 817 depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND 818 default "console=ttySC1,115200" 819 820endmenu 821 822menu "Bus options" 823 824config SUPERHYWAY 825 tristate "SuperHyway Bus support" 826 depends on CPU_SUBTYPE_SH4_202 827 828config MAPLE 829 bool "Maple Bus support" 830 depends on SH_DREAMCAST 831 help 832 The Maple Bus is SEGA's serial communication bus for peripherals 833 on the Dreamcast. Without this bus support you won't be able to 834 get your Dreamcast keyboard etc to work, so most users 835 probably want to say 'Y' here, unless you are only using the 836 Dreamcast with a serial line terminal or a remote network 837 connection. 838 839config PCI 840 bool "PCI support" 841 depends on SYS_SUPPORTS_PCI 842 select PCI_DOMAINS 843 select GENERIC_PCI_IOMAP 844 select NO_GENERIC_PCI_IOPORT_MAP 845 help 846 Find out whether you have a PCI motherboard. PCI is the name of a 847 bus system, i.e. the way the CPU talks to the other stuff inside 848 your box. If you have PCI, say Y, otherwise N. 849 850config PCI_DOMAINS 851 bool 852 853source "drivers/pci/pcie/Kconfig" 854 855source "drivers/pci/Kconfig" 856 857source "drivers/pcmcia/Kconfig" 858 859source "drivers/pci/hotplug/Kconfig" 860 861endmenu 862 863menu "Executable file formats" 864 865source "fs/Kconfig.binfmt" 866 867endmenu 868 869menu "Power management options (EXPERIMENTAL)" 870 871source "kernel/power/Kconfig" 872 873source "drivers/cpuidle/Kconfig" 874 875endmenu 876 877source "net/Kconfig" 878 879source "drivers/Kconfig" 880 881source "fs/Kconfig" 882 883source "arch/sh/Kconfig.debug" 884 885source "security/Kconfig" 886 887source "crypto/Kconfig" 888 889source "lib/Kconfig" 890