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 PERF_USE_VMALLOC 20 select HAVE_DEBUG_KMEMLEAK 21 select HAVE_KERNEL_GZIP 22 select HAVE_KERNEL_BZIP2 23 select HAVE_KERNEL_LZMA 24 select HAVE_KERNEL_XZ 25 select HAVE_KERNEL_LZO 26 select HAVE_UID16 27 select ARCH_WANT_IPC_PARSE_VERSION 28 select HAVE_SYSCALL_TRACEPOINTS 29 select HAVE_REGS_AND_STACK_ACCESS_API 30 select MAY_HAVE_SPARSE_IRQ 31 select IRQ_FORCED_THREADING 32 select RTC_LIB 33 select GENERIC_ATOMIC64 34 select GENERIC_IRQ_SHOW 35 select GENERIC_SMP_IDLE_THREAD 36 select GENERIC_IDLE_POLL_SETUP 37 select GENERIC_CLOCKEVENTS 38 select GENERIC_CMOS_UPDATE if SH_SH03 || SH_DREAMCAST 39 select GENERIC_STRNCPY_FROM_USER 40 select GENERIC_STRNLEN_USER 41 select HAVE_MOD_ARCH_SPECIFIC if DWARF_UNWINDER 42 select MODULES_USE_ELF_RELA 43 select OLD_SIGSUSPEND 44 select OLD_SIGACTION 45 select HAVE_ARCH_AUDITSYSCALL 46 help 47 The SuperH is a RISC processor targeted for use in embedded systems 48 and consumer electronics; it was also used in the Sega Dreamcast 49 gaming console. The SuperH port has a home page at 50 <http://www.linux-sh.org/>. 51 52config SUPERH32 53 def_bool ARCH = "sh" 54 select HAVE_KPROBES 55 select HAVE_KRETPROBES 56 select HAVE_IOREMAP_PROT if MMU && !X2TLB 57 select HAVE_FUNCTION_TRACER 58 select HAVE_FTRACE_MCOUNT_RECORD 59 select HAVE_DYNAMIC_FTRACE 60 select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE 61 select ARCH_WANT_IPC_PARSE_VERSION 62 select HAVE_FUNCTION_GRAPH_TRACER 63 select HAVE_ARCH_KGDB 64 select HAVE_HW_BREAKPOINT 65 select HAVE_MIXED_BREAKPOINTS_REGS 66 select PERF_EVENTS 67 select ARCH_HIBERNATION_POSSIBLE if MMU 68 select SPARSE_IRQ 69 select HAVE_CC_STACKPROTECTOR 70 71config SUPERH64 72 def_bool ARCH = "sh64" 73 select KALLSYMS 74 75config ARCH_DEFCONFIG 76 string 77 default "arch/sh/configs/shx3_defconfig" if SUPERH32 78 default "arch/sh/configs/cayman_defconfig" if SUPERH64 79 80config RWSEM_GENERIC_SPINLOCK 81 def_bool y 82 83config RWSEM_XCHGADD_ALGORITHM 84 bool 85 86config GENERIC_BUG 87 def_bool y 88 depends on BUG && SUPERH32 89 90config GENERIC_CSUM 91 def_bool y 92 depends on SUPERH64 93 94config GENERIC_HWEIGHT 95 def_bool y 96 97config GENERIC_CALIBRATE_DELAY 98 bool 99 100config GENERIC_LOCKBREAK 101 def_bool y 102 depends on SMP && PREEMPT 103 104config ARCH_SUSPEND_POSSIBLE 105 def_bool n 106 107config ARCH_HIBERNATION_POSSIBLE 108 def_bool n 109 110config SYS_SUPPORTS_APM_EMULATION 111 bool 112 select ARCH_SUSPEND_POSSIBLE 113 114config SYS_SUPPORTS_HUGETLBFS 115 bool 116 117config SYS_SUPPORTS_SMP 118 bool 119 120config SYS_SUPPORTS_NUMA 121 bool 122 123config SYS_SUPPORTS_PCI 124 bool 125 126config STACKTRACE_SUPPORT 127 def_bool y 128 129config LOCKDEP_SUPPORT 130 def_bool y 131 132config HAVE_LATENCYTOP_SUPPORT 133 def_bool y 134 135config ARCH_HAS_ILOG2_U32 136 def_bool n 137 138config ARCH_HAS_ILOG2_U64 139 def_bool n 140 141config NO_IOPORT_MAP 142 def_bool !PCI 143 depends on !SH_CAYMAN && !SH_SH4202_MICRODEV && !SH_SHMIN && \ 144 !SH_HP6XX && !SH_SOLUTION_ENGINE 145 146config IO_TRAPPED 147 bool 148 149config SWAP_IO_SPACE 150 bool 151 152config DMA_COHERENT 153 bool 154 155config DMA_NONCOHERENT 156 def_bool !DMA_COHERENT 157 158config NEED_DMA_MAP_STATE 159 def_bool DMA_NONCOHERENT 160 161config NEED_SG_DMA_LENGTH 162 def_bool y 163 164source "init/Kconfig" 165 166source "kernel/Kconfig.freezer" 167 168menu "System type" 169 170# 171# Processor families 172# 173config CPU_SH2 174 bool 175 select SH_INTC 176 177config CPU_SH2A 178 bool 179 select CPU_SH2 180 select UNCACHED_MAPPING 181 182config CPU_SH3 183 bool 184 select CPU_HAS_INTEVT 185 select CPU_HAS_SR_RB 186 select SH_INTC 187 select SYS_SUPPORTS_SH_TMU 188 189config CPU_SH4 190 bool 191 select CPU_HAS_INTEVT 192 select CPU_HAS_SR_RB 193 select CPU_HAS_FPU if !CPU_SH4AL_DSP 194 select SH_INTC 195 select SYS_SUPPORTS_SH_TMU 196 select SYS_SUPPORTS_HUGETLBFS if MMU 197 198config CPU_SH4A 199 bool 200 select CPU_SH4 201 202config CPU_SH4AL_DSP 203 bool 204 select CPU_SH4A 205 select CPU_HAS_DSP 206 207config CPU_SH5 208 bool 209 select CPU_HAS_FPU 210 select SYS_SUPPORTS_SH_TMU 211 select SYS_SUPPORTS_HUGETLBFS if MMU 212 213config CPU_SHX2 214 bool 215 216config CPU_SHX3 217 bool 218 select DMA_COHERENT 219 select SYS_SUPPORTS_SMP 220 select SYS_SUPPORTS_NUMA 221 222config ARCH_SHMOBILE 223 bool 224 select ARCH_SUSPEND_POSSIBLE 225 select PM 226 select PM_RUNTIME 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 select CRYPTO 602 select CRYPTO_SHA256 603 help 604 kexec is a system call that implements the ability to shutdown your 605 current kernel, and to start another kernel. It is like a reboot 606 but it is independent of the system firmware. And like a reboot 607 you can start any kernel with it, not just Linux. 608 609 The name comes from the similarity to the exec system call. 610 611 It is an ongoing process to be certain the hardware in a machine 612 is properly shutdown, so do not be surprised if this code does not 613 initially work for you. As of this writing the exact hardware 614 interface is strongly in flux, so no good recommendation can be 615 made. 616 617config CRASH_DUMP 618 bool "kernel crash dumps (EXPERIMENTAL)" 619 depends on SUPERH32 && BROKEN_ON_SMP 620 help 621 Generate crash dump after being started by kexec. 622 This should be normally only set in special crash dump kernels 623 which are loaded in the main kernel with kexec-tools into 624 a specially reserved region and then later executed after 625 a crash by kdump/kexec. The crash dump kernel must be compiled 626 to a memory address not used by the main kernel using 627 PHYSICAL_START. 628 629 For more details see Documentation/kdump/kdump.txt 630 631config KEXEC_JUMP 632 bool "kexec jump (EXPERIMENTAL)" 633 depends on SUPERH32 && KEXEC && HIBERNATION 634 help 635 Jump between original kernel and kexeced kernel and invoke 636 code via KEXEC 637 638config PHYSICAL_START 639 hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP) 640 default MEMORY_START 641 ---help--- 642 This gives the physical address where the kernel is loaded 643 and is ordinarily the same as MEMORY_START. 644 645 Different values are primarily used in the case of kexec on panic 646 where the fail safe kernel needs to run at a different address 647 than the panic-ed kernel. 648 649config SECCOMP 650 bool "Enable seccomp to safely compute untrusted bytecode" 651 depends on PROC_FS 652 help 653 This kernel feature is useful for number crunching applications 654 that may need to compute untrusted bytecode during their 655 execution. By using pipes or other transports made available to 656 the process as file descriptors supporting the read/write 657 syscalls, it's possible to isolate those applications in 658 their own address space using seccomp. Once seccomp is 659 enabled via prctl, it cannot be disabled and the task is only 660 allowed to execute a few safe syscalls defined by each seccomp 661 mode. 662 663 If unsure, say N. 664 665config SMP 666 bool "Symmetric multi-processing support" 667 depends on SYS_SUPPORTS_SMP 668 ---help--- 669 This enables support for systems with more than one CPU. If you have 670 a system with only one CPU, say N. If you have a system with more 671 than one CPU, say Y. 672 673 If you say N here, the kernel will run on uni- and multiprocessor 674 machines, but will use only one CPU of a multiprocessor machine. If 675 you say Y here, the kernel will run on many, but not all, 676 uniprocessor machines. On a uniprocessor machine, the kernel 677 will run faster if you say N here. 678 679 People using multiprocessor machines who say Y here should also say 680 Y to "Enhanced Real Time Clock Support", below. 681 682 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO 683 available at <http://www.tldp.org/docs.html#howto>. 684 685 If you don't know what to do here, say N. 686 687config NR_CPUS 688 int "Maximum number of CPUs (2-32)" 689 range 2 32 690 depends on SMP 691 default "4" if CPU_SUBTYPE_SHX3 692 default "2" 693 help 694 This allows you to specify the maximum number of CPUs which this 695 kernel will support. The maximum supported value is 32 and the 696 minimum value which makes sense is 2. 697 698 This is purely to save memory - each supported CPU adds 699 approximately eight kilobytes to the kernel image. 700 701config HOTPLUG_CPU 702 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" 703 depends on SMP 704 help 705 Say Y here to experiment with turning CPUs off and on. CPUs 706 can be controlled through /sys/devices/system/cpu. 707 708source "kernel/Kconfig.preempt" 709 710config GUSA 711 def_bool y 712 depends on !SMP && SUPERH32 713 help 714 This enables support for gUSA (general UserSpace Atomicity). 715 This is the default implementation for both UP and non-ll/sc 716 CPUs, and is used by the libc, amongst others. 717 718 For additional information, design information can be found 719 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>. 720 721 This should only be disabled for special cases where alternate 722 atomicity implementations exist. 723 724config GUSA_RB 725 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)" 726 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A) 727 help 728 Enabling this option will allow the kernel to implement some 729 atomic operations using a software implementation of load-locked/ 730 store-conditional (LLSC). On machines which do not have hardware 731 LLSC, this should be more efficient than the other alternative of 732 disabling interrupts around the atomic sequence. 733 734config HW_PERF_EVENTS 735 bool "Enable hardware performance counter support for perf events" 736 depends on PERF_EVENTS && CPU_HAS_PMU 737 default y 738 help 739 Enable hardware performance counter support for perf events. If 740 disabled, perf events will use software events only. 741 742source "drivers/sh/Kconfig" 743 744endmenu 745 746menu "Boot options" 747 748config ZERO_PAGE_OFFSET 749 hex 750 default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \ 751 SH_7751_SOLUTION_ENGINE 752 default "0x00004000" if PAGE_SIZE_16KB || SH_SH03 753 default "0x00002000" if PAGE_SIZE_8KB 754 default "0x00001000" 755 help 756 This sets the default offset of zero page. 757 758config BOOT_LINK_OFFSET 759 hex 760 default "0x00210000" if SH_SHMIN 761 default "0x00400000" if SH_CAYMAN 762 default "0x00810000" if SH_7780_SOLUTION_ENGINE 763 default "0x009e0000" if SH_TITAN 764 default "0x01800000" if SH_SDK7780 765 default "0x02000000" if SH_EDOSK7760 766 default "0x00800000" 767 help 768 This option allows you to set the link address offset of the zImage. 769 This can be useful if you are on a board which has a small amount of 770 memory. 771 772config ENTRY_OFFSET 773 hex 774 default "0x00001000" if PAGE_SIZE_4KB 775 default "0x00002000" if PAGE_SIZE_8KB 776 default "0x00004000" if PAGE_SIZE_16KB 777 default "0x00010000" if PAGE_SIZE_64KB 778 default "0x00000000" 779 780config ROMIMAGE_MMCIF 781 bool "Include MMCIF loader in romImage (EXPERIMENTAL)" 782 depends on CPU_SUBTYPE_SH7724 783 help 784 Say Y here to include experimental MMCIF loading code in 785 romImage. With this enabled it is possible to write the romImage 786 kernel image to an MMC card and boot the kernel straight from 787 the reset vector. At reset the processor Mask ROM will load the 788 first part of the romImage which in turn loads the rest the kernel 789 image to RAM using the MMCIF hardware block. 790 791choice 792 prompt "Kernel command line" 793 optional 794 default CMDLINE_OVERWRITE 795 help 796 Setting this option allows the kernel command line arguments 797 to be set. 798 799config CMDLINE_OVERWRITE 800 bool "Overwrite bootloader kernel arguments" 801 help 802 Given string will overwrite any arguments passed in by 803 a bootloader. 804 805config CMDLINE_EXTEND 806 bool "Extend bootloader kernel arguments" 807 help 808 Given string will be concatenated with arguments passed in 809 by a bootloader. 810 811endchoice 812 813config CMDLINE 814 string "Kernel command line arguments string" 815 depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND 816 default "console=ttySC1,115200" 817 818endmenu 819 820menu "Bus options" 821 822config SUPERHYWAY 823 tristate "SuperHyway Bus support" 824 depends on CPU_SUBTYPE_SH4_202 825 826config MAPLE 827 bool "Maple Bus support" 828 depends on SH_DREAMCAST 829 help 830 The Maple Bus is SEGA's serial communication bus for peripherals 831 on the Dreamcast. Without this bus support you won't be able to 832 get your Dreamcast keyboard etc to work, so most users 833 probably want to say 'Y' here, unless you are only using the 834 Dreamcast with a serial line terminal or a remote network 835 connection. 836 837config PCI 838 bool "PCI support" 839 depends on SYS_SUPPORTS_PCI 840 select PCI_DOMAINS 841 select GENERIC_PCI_IOMAP 842 select NO_GENERIC_PCI_IOPORT_MAP 843 help 844 Find out whether you have a PCI motherboard. PCI is the name of a 845 bus system, i.e. the way the CPU talks to the other stuff inside 846 your box. If you have PCI, say Y, otherwise N. 847 848config PCI_DOMAINS 849 bool 850 851source "drivers/pci/pcie/Kconfig" 852 853source "drivers/pci/Kconfig" 854 855source "drivers/pcmcia/Kconfig" 856 857source "drivers/pci/hotplug/Kconfig" 858 859endmenu 860 861menu "Executable file formats" 862 863source "fs/Kconfig.binfmt" 864 865endmenu 866 867menu "Power management options (EXPERIMENTAL)" 868 869source "kernel/power/Kconfig" 870 871source "drivers/cpuidle/Kconfig" 872 873endmenu 874 875source "net/Kconfig" 876 877source "drivers/Kconfig" 878 879source "fs/Kconfig" 880 881source "arch/sh/Kconfig.debug" 882 883source "security/Kconfig" 884 885source "crypto/Kconfig" 886 887source "lib/Kconfig" 888