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_PERF_EVENTS 15 select HAVE_DEBUG_BUGVERBOSE 16 select ARCH_HAVE_CUSTOM_GPIO_H 17 select ARCH_HAVE_NMI_SAFE_CMPXCHG if (GUSA_RB || CPU_SH4A) 18 select ARCH_HAS_GCOV_PROFILE_ALL 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 ARCH_HAS_ILOG2_U32 133 def_bool n 134 135config ARCH_HAS_ILOG2_U64 136 def_bool n 137 138config NO_IOPORT_MAP 139 def_bool !PCI 140 depends on !SH_CAYMAN && !SH_SH4202_MICRODEV && !SH_SHMIN && \ 141 !SH_HP6XX && !SH_SOLUTION_ENGINE 142 143config IO_TRAPPED 144 bool 145 146config SWAP_IO_SPACE 147 bool 148 149config DMA_COHERENT 150 bool 151 152config DMA_NONCOHERENT 153 def_bool !DMA_COHERENT 154 155config NEED_DMA_MAP_STATE 156 def_bool DMA_NONCOHERENT 157 158config NEED_SG_DMA_LENGTH 159 def_bool y 160 161config PGTABLE_LEVELS 162 default 3 if X2TLB 163 default 2 164 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 select KEXEC_CORE 602 help 603 kexec is a system call that implements the ability to shutdown your 604 current kernel, and to start another kernel. It is like a reboot 605 but it is independent of the system firmware. And like a reboot 606 you can start any kernel with it, not just Linux. 607 608 The name comes from the similarity to the exec system call. 609 610 It is an ongoing process to be certain the hardware in a machine 611 is properly shutdown, so do not be surprised if this code does not 612 initially work for you. As of this writing the exact hardware 613 interface is strongly in flux, so no good recommendation can be 614 made. 615 616config CRASH_DUMP 617 bool "kernel crash dumps (EXPERIMENTAL)" 618 depends on SUPERH32 && BROKEN_ON_SMP 619 help 620 Generate crash dump after being started by kexec. 621 This should be normally only set in special crash dump kernels 622 which are loaded in the main kernel with kexec-tools into 623 a specially reserved region and then later executed after 624 a crash by kdump/kexec. The crash dump kernel must be compiled 625 to a memory address not used by the main kernel using 626 PHYSICAL_START. 627 628 For more details see Documentation/kdump/kdump.txt 629 630config KEXEC_JUMP 631 bool "kexec jump (EXPERIMENTAL)" 632 depends on SUPERH32 && KEXEC && HIBERNATION 633 help 634 Jump between original kernel and kexeced kernel and invoke 635 code via KEXEC 636 637config PHYSICAL_START 638 hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP) 639 default MEMORY_START 640 ---help--- 641 This gives the physical address where the kernel is loaded 642 and is ordinarily the same as MEMORY_START. 643 644 Different values are primarily used in the case of kexec on panic 645 where the fail safe kernel needs to run at a different address 646 than the panic-ed kernel. 647 648config SECCOMP 649 bool "Enable seccomp to safely compute untrusted bytecode" 650 depends on PROC_FS 651 help 652 This kernel feature is useful for number crunching applications 653 that may need to compute untrusted bytecode during their 654 execution. By using pipes or other transports made available to 655 the process as file descriptors supporting the read/write 656 syscalls, it's possible to isolate those applications in 657 their own address space using seccomp. Once seccomp is 658 enabled via prctl, it cannot be disabled and the task is only 659 allowed to execute a few safe syscalls defined by each seccomp 660 mode. 661 662 If unsure, say N. 663 664config SMP 665 bool "Symmetric multi-processing support" 666 depends on SYS_SUPPORTS_SMP 667 ---help--- 668 This enables support for systems with more than one CPU. If you have 669 a system with only one CPU, say N. If you have a system with more 670 than one CPU, say Y. 671 672 If you say N here, the kernel will run on uni- and multiprocessor 673 machines, but will use only one CPU of a multiprocessor machine. If 674 you say Y here, the kernel will run on many, but not all, 675 uniprocessor machines. On a uniprocessor machine, the kernel 676 will run faster if you say N here. 677 678 People using multiprocessor machines who say Y here should also say 679 Y to "Enhanced Real Time Clock Support", below. 680 681 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO 682 available at <http://www.tldp.org/docs.html#howto>. 683 684 If you don't know what to do here, say N. 685 686config NR_CPUS 687 int "Maximum number of CPUs (2-32)" 688 range 2 32 689 depends on SMP 690 default "4" if CPU_SUBTYPE_SHX3 691 default "2" 692 help 693 This allows you to specify the maximum number of CPUs which this 694 kernel will support. The maximum supported value is 32 and the 695 minimum value which makes sense is 2. 696 697 This is purely to save memory - each supported CPU adds 698 approximately eight kilobytes to the kernel image. 699 700config HOTPLUG_CPU 701 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" 702 depends on SMP 703 help 704 Say Y here to experiment with turning CPUs off and on. CPUs 705 can be controlled through /sys/devices/system/cpu. 706 707source "kernel/Kconfig.preempt" 708 709config GUSA 710 def_bool y 711 depends on !SMP && SUPERH32 712 help 713 This enables support for gUSA (general UserSpace Atomicity). 714 This is the default implementation for both UP and non-ll/sc 715 CPUs, and is used by the libc, amongst others. 716 717 For additional information, design information can be found 718 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>. 719 720 This should only be disabled for special cases where alternate 721 atomicity implementations exist. 722 723config GUSA_RB 724 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)" 725 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A) 726 help 727 Enabling this option will allow the kernel to implement some 728 atomic operations using a software implementation of load-locked/ 729 store-conditional (LLSC). On machines which do not have hardware 730 LLSC, this should be more efficient than the other alternative of 731 disabling interrupts around the atomic sequence. 732 733config HW_PERF_EVENTS 734 bool "Enable hardware performance counter support for perf events" 735 depends on PERF_EVENTS && CPU_HAS_PMU 736 default y 737 help 738 Enable hardware performance counter support for perf events. If 739 disabled, perf events will use software events only. 740 741source "drivers/sh/Kconfig" 742 743endmenu 744 745menu "Boot options" 746 747config ZERO_PAGE_OFFSET 748 hex 749 default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \ 750 SH_7751_SOLUTION_ENGINE 751 default "0x00004000" if PAGE_SIZE_16KB || SH_SH03 752 default "0x00002000" if PAGE_SIZE_8KB 753 default "0x00001000" 754 help 755 This sets the default offset of zero page. 756 757config BOOT_LINK_OFFSET 758 hex 759 default "0x00210000" if SH_SHMIN 760 default "0x00400000" if SH_CAYMAN 761 default "0x00810000" if SH_7780_SOLUTION_ENGINE 762 default "0x009e0000" if SH_TITAN 763 default "0x01800000" if SH_SDK7780 764 default "0x02000000" if SH_EDOSK7760 765 default "0x00800000" 766 help 767 This option allows you to set the link address offset of the zImage. 768 This can be useful if you are on a board which has a small amount of 769 memory. 770 771config ENTRY_OFFSET 772 hex 773 default "0x00001000" if PAGE_SIZE_4KB 774 default "0x00002000" if PAGE_SIZE_8KB 775 default "0x00004000" if PAGE_SIZE_16KB 776 default "0x00010000" if PAGE_SIZE_64KB 777 default "0x00000000" 778 779config ROMIMAGE_MMCIF 780 bool "Include MMCIF loader in romImage (EXPERIMENTAL)" 781 depends on CPU_SUBTYPE_SH7724 782 help 783 Say Y here to include experimental MMCIF loading code in 784 romImage. With this enabled it is possible to write the romImage 785 kernel image to an MMC card and boot the kernel straight from 786 the reset vector. At reset the processor Mask ROM will load the 787 first part of the romImage which in turn loads the rest the kernel 788 image to RAM using the MMCIF hardware block. 789 790choice 791 prompt "Kernel command line" 792 optional 793 default CMDLINE_OVERWRITE 794 help 795 Setting this option allows the kernel command line arguments 796 to be set. 797 798config CMDLINE_OVERWRITE 799 bool "Overwrite bootloader kernel arguments" 800 help 801 Given string will overwrite any arguments passed in by 802 a bootloader. 803 804config CMDLINE_EXTEND 805 bool "Extend bootloader kernel arguments" 806 help 807 Given string will be concatenated with arguments passed in 808 by a bootloader. 809 810endchoice 811 812config CMDLINE 813 string "Kernel command line arguments string" 814 depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND 815 default "console=ttySC1,115200" 816 817endmenu 818 819menu "Bus options" 820 821config SUPERHYWAY 822 tristate "SuperHyway Bus support" 823 depends on CPU_SUBTYPE_SH4_202 824 825config MAPLE 826 bool "Maple Bus support" 827 depends on SH_DREAMCAST 828 help 829 The Maple Bus is SEGA's serial communication bus for peripherals 830 on the Dreamcast. Without this bus support you won't be able to 831 get your Dreamcast keyboard etc to work, so most users 832 probably want to say 'Y' here, unless you are only using the 833 Dreamcast with a serial line terminal or a remote network 834 connection. 835 836config PCI 837 bool "PCI support" 838 depends on SYS_SUPPORTS_PCI 839 select PCI_DOMAINS 840 select GENERIC_PCI_IOMAP 841 select NO_GENERIC_PCI_IOPORT_MAP 842 help 843 Find out whether you have a PCI motherboard. PCI is the name of a 844 bus system, i.e. the way the CPU talks to the other stuff inside 845 your box. If you have PCI, say Y, otherwise N. 846 847config PCI_DOMAINS 848 bool 849 850source "drivers/pci/pcie/Kconfig" 851 852source "drivers/pci/Kconfig" 853 854source "drivers/pcmcia/Kconfig" 855 856source "drivers/pci/hotplug/Kconfig" 857 858endmenu 859 860menu "Executable file formats" 861 862source "fs/Kconfig.binfmt" 863 864endmenu 865 866menu "Power management options (EXPERIMENTAL)" 867 868source "kernel/power/Kconfig" 869 870source "drivers/cpuidle/Kconfig" 871 872endmenu 873 874source "net/Kconfig" 875 876source "drivers/Kconfig" 877 878source "fs/Kconfig" 879 880source "arch/sh/Kconfig.debug" 881 882source "security/Kconfig" 883 884source "crypto/Kconfig" 885 886source "lib/Kconfig" 887