1config SUPERH 2 def_bool y 3 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST 4 select ARCH_MIGHT_HAVE_PC_PARPORT 5 select HAVE_PATA_PLATFORM 6 select CLKDEV_LOOKUP 7 select HAVE_IDE if HAS_IOPORT_MAP 8 select HAVE_MEMBLOCK 9 select HAVE_MEMBLOCK_NODE_MAP 10 select ARCH_DISCARD_MEMBLOCK 11 select HAVE_OPROFILE 12 select HAVE_GENERIC_DMA_COHERENT 13 select HAVE_ARCH_TRACEHOOK 14 select HAVE_DMA_API_DEBUG 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 ARCH_HAS_ILOG2_U32 134 def_bool n 135 136config ARCH_HAS_ILOG2_U64 137 def_bool n 138 139config NO_IOPORT_MAP 140 def_bool !PCI 141 depends on !SH_CAYMAN && !SH_SH4202_MICRODEV && !SH_SHMIN && \ 142 !SH_HP6XX && !SH_SOLUTION_ENGINE 143 144config IO_TRAPPED 145 bool 146 147config SWAP_IO_SPACE 148 bool 149 150config DMA_COHERENT 151 bool 152 153config DMA_NONCOHERENT 154 def_bool !DMA_COHERENT 155 156config NEED_DMA_MAP_STATE 157 def_bool DMA_NONCOHERENT 158 159config NEED_SG_DMA_LENGTH 160 def_bool y 161 162config PGTABLE_LEVELS 163 default 3 if X2TLB 164 default 2 165 166source "init/Kconfig" 167 168source "kernel/Kconfig.freezer" 169 170menu "System type" 171 172# 173# Processor families 174# 175config CPU_SH2 176 bool 177 select SH_INTC 178 179config CPU_SH2A 180 bool 181 select CPU_SH2 182 select UNCACHED_MAPPING 183 184config CPU_SH3 185 bool 186 select CPU_HAS_INTEVT 187 select CPU_HAS_SR_RB 188 select SH_INTC 189 select SYS_SUPPORTS_SH_TMU 190 191config CPU_SH4 192 bool 193 select CPU_HAS_INTEVT 194 select CPU_HAS_SR_RB 195 select CPU_HAS_FPU if !CPU_SH4AL_DSP 196 select SH_INTC 197 select SYS_SUPPORTS_SH_TMU 198 select SYS_SUPPORTS_HUGETLBFS if MMU 199 200config CPU_SH4A 201 bool 202 select CPU_SH4 203 204config CPU_SH4AL_DSP 205 bool 206 select CPU_SH4A 207 select CPU_HAS_DSP 208 209config CPU_SH5 210 bool 211 select CPU_HAS_FPU 212 select SYS_SUPPORTS_SH_TMU 213 select SYS_SUPPORTS_HUGETLBFS if MMU 214 215config CPU_SHX2 216 bool 217 218config CPU_SHX3 219 bool 220 select DMA_COHERENT 221 select SYS_SUPPORTS_SMP 222 select SYS_SUPPORTS_NUMA 223 224config ARCH_SHMOBILE 225 bool 226 select ARCH_SUSPEND_POSSIBLE 227 select PM 228 229config CPU_HAS_PMU 230 depends on CPU_SH4 || CPU_SH4A 231 default y 232 bool 233 234if SUPERH32 235 236choice 237 prompt "Processor sub-type selection" 238 239# 240# Processor subtypes 241# 242 243# SH-2 Processor Support 244 245config CPU_SUBTYPE_SH7619 246 bool "Support SH7619 processor" 247 select CPU_SH2 248 select SYS_SUPPORTS_SH_CMT 249 250# SH-2A Processor Support 251 252config CPU_SUBTYPE_SH7201 253 bool "Support SH7201 processor" 254 select CPU_SH2A 255 select CPU_HAS_FPU 256 select SYS_SUPPORTS_SH_MTU2 257 258config CPU_SUBTYPE_SH7203 259 bool "Support SH7203 processor" 260 select CPU_SH2A 261 select CPU_HAS_FPU 262 select SYS_SUPPORTS_SH_CMT 263 select SYS_SUPPORTS_SH_MTU2 264 select ARCH_WANT_OPTIONAL_GPIOLIB 265 select PINCTRL 266 267config CPU_SUBTYPE_SH7206 268 bool "Support SH7206 processor" 269 select CPU_SH2A 270 select SYS_SUPPORTS_SH_CMT 271 select SYS_SUPPORTS_SH_MTU2 272 273config CPU_SUBTYPE_SH7263 274 bool "Support SH7263 processor" 275 select CPU_SH2A 276 select CPU_HAS_FPU 277 select SYS_SUPPORTS_SH_CMT 278 select SYS_SUPPORTS_SH_MTU2 279 280config CPU_SUBTYPE_SH7264 281 bool "Support SH7264 processor" 282 select CPU_SH2A 283 select CPU_HAS_FPU 284 select SYS_SUPPORTS_SH_CMT 285 select SYS_SUPPORTS_SH_MTU2 286 select PINCTRL 287 288config CPU_SUBTYPE_SH7269 289 bool "Support SH7269 processor" 290 select CPU_SH2A 291 select CPU_HAS_FPU 292 select SYS_SUPPORTS_SH_CMT 293 select SYS_SUPPORTS_SH_MTU2 294 select PINCTRL 295 296config CPU_SUBTYPE_MXG 297 bool "Support MX-G processor" 298 select CPU_SH2A 299 select SYS_SUPPORTS_SH_MTU2 300 help 301 Select MX-G if running on an R8A03022BG part. 302 303# SH-3 Processor Support 304 305config CPU_SUBTYPE_SH7705 306 bool "Support SH7705 processor" 307 select CPU_SH3 308 309config CPU_SUBTYPE_SH7706 310 bool "Support SH7706 processor" 311 select CPU_SH3 312 help 313 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU. 314 315config CPU_SUBTYPE_SH7707 316 bool "Support SH7707 processor" 317 select CPU_SH3 318 help 319 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU. 320 321config CPU_SUBTYPE_SH7708 322 bool "Support SH7708 processor" 323 select CPU_SH3 324 help 325 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or 326 if you have a 100 Mhz SH-3 HD6417708R CPU. 327 328config CPU_SUBTYPE_SH7709 329 bool "Support SH7709 processor" 330 select CPU_SH3 331 help 332 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU. 333 334config CPU_SUBTYPE_SH7710 335 bool "Support SH7710 processor" 336 select CPU_SH3 337 select CPU_HAS_DSP 338 help 339 Select SH7710 if you have a SH3-DSP SH7710 CPU. 340 341config CPU_SUBTYPE_SH7712 342 bool "Support SH7712 processor" 343 select CPU_SH3 344 select CPU_HAS_DSP 345 help 346 Select SH7712 if you have a SH3-DSP SH7712 CPU. 347 348config CPU_SUBTYPE_SH7720 349 bool "Support SH7720 processor" 350 select CPU_SH3 351 select CPU_HAS_DSP 352 select SYS_SUPPORTS_SH_CMT 353 select ARCH_WANT_OPTIONAL_GPIOLIB 354 select USB_OHCI_SH if USB_OHCI_HCD 355 select PINCTRL 356 help 357 Select SH7720 if you have a SH3-DSP SH7720 CPU. 358 359config CPU_SUBTYPE_SH7721 360 bool "Support SH7721 processor" 361 select CPU_SH3 362 select CPU_HAS_DSP 363 select SYS_SUPPORTS_SH_CMT 364 select USB_OHCI_SH if USB_OHCI_HCD 365 help 366 Select SH7721 if you have a SH3-DSP SH7721 CPU. 367 368# SH-4 Processor Support 369 370config CPU_SUBTYPE_SH7750 371 bool "Support SH7750 processor" 372 select CPU_SH4 373 help 374 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU. 375 376config CPU_SUBTYPE_SH7091 377 bool "Support SH7091 processor" 378 select CPU_SH4 379 help 380 Select SH7091 if you have an SH-4 based Sega device (such as 381 the Dreamcast, Naomi, and Naomi 2). 382 383config CPU_SUBTYPE_SH7750R 384 bool "Support SH7750R processor" 385 select CPU_SH4 386 387config CPU_SUBTYPE_SH7750S 388 bool "Support SH7750S processor" 389 select CPU_SH4 390 391config CPU_SUBTYPE_SH7751 392 bool "Support SH7751 processor" 393 select CPU_SH4 394 help 395 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU, 396 or if you have a HD6417751R CPU. 397 398config CPU_SUBTYPE_SH7751R 399 bool "Support SH7751R processor" 400 select CPU_SH4 401 402config CPU_SUBTYPE_SH7760 403 bool "Support SH7760 processor" 404 select CPU_SH4 405 406config CPU_SUBTYPE_SH4_202 407 bool "Support SH4-202 processor" 408 select CPU_SH4 409 410# SH-4A Processor Support 411 412config CPU_SUBTYPE_SH7723 413 bool "Support SH7723 processor" 414 select CPU_SH4A 415 select CPU_SHX2 416 select ARCH_SHMOBILE 417 select ARCH_SPARSEMEM_ENABLE 418 select SYS_SUPPORTS_SH_CMT 419 select ARCH_WANT_OPTIONAL_GPIOLIB 420 select PINCTRL 421 help 422 Select SH7723 if you have an SH-MobileR2 CPU. 423 424config CPU_SUBTYPE_SH7724 425 bool "Support SH7724 processor" 426 select CPU_SH4A 427 select CPU_SHX2 428 select ARCH_SHMOBILE 429 select ARCH_SPARSEMEM_ENABLE 430 select SYS_SUPPORTS_SH_CMT 431 select ARCH_WANT_OPTIONAL_GPIOLIB 432 select PINCTRL 433 help 434 Select SH7724 if you have an SH-MobileR2R CPU. 435 436config CPU_SUBTYPE_SH7734 437 bool "Support SH7734 processor" 438 select CPU_SH4A 439 select CPU_SHX2 440 select ARCH_WANT_OPTIONAL_GPIOLIB 441 select PINCTRL 442 help 443 Select SH7734 if you have a SH4A SH7734 CPU. 444 445config CPU_SUBTYPE_SH7757 446 bool "Support SH7757 processor" 447 select CPU_SH4A 448 select CPU_SHX2 449 select ARCH_WANT_OPTIONAL_GPIOLIB 450 select PINCTRL 451 help 452 Select SH7757 if you have a SH4A SH7757 CPU. 453 454config CPU_SUBTYPE_SH7763 455 bool "Support SH7763 processor" 456 select CPU_SH4A 457 select USB_OHCI_SH if USB_OHCI_HCD 458 help 459 Select SH7763 if you have a SH4A SH7763(R5S77631) CPU. 460 461config CPU_SUBTYPE_SH7770 462 bool "Support SH7770 processor" 463 select CPU_SH4A 464 465config CPU_SUBTYPE_SH7780 466 bool "Support SH7780 processor" 467 select CPU_SH4A 468 469config CPU_SUBTYPE_SH7785 470 bool "Support SH7785 processor" 471 select CPU_SH4A 472 select CPU_SHX2 473 select ARCH_SPARSEMEM_ENABLE 474 select SYS_SUPPORTS_NUMA 475 select ARCH_WANT_OPTIONAL_GPIOLIB 476 select PINCTRL 477 478config CPU_SUBTYPE_SH7786 479 bool "Support SH7786 processor" 480 select CPU_SH4A 481 select CPU_SHX3 482 select CPU_HAS_PTEAEX 483 select GENERIC_CLOCKEVENTS_BROADCAST if SMP 484 select ARCH_WANT_OPTIONAL_GPIOLIB 485 select USB_OHCI_SH if USB_OHCI_HCD 486 select USB_EHCI_SH if USB_EHCI_HCD 487 select PINCTRL 488 489config CPU_SUBTYPE_SHX3 490 bool "Support SH-X3 processor" 491 select CPU_SH4A 492 select CPU_SHX3 493 select GENERIC_CLOCKEVENTS_BROADCAST if SMP 494 select ARCH_REQUIRE_GPIOLIB 495 select PINCTRL 496 497# SH4AL-DSP Processor Support 498 499config CPU_SUBTYPE_SH7343 500 bool "Support SH7343 processor" 501 select CPU_SH4AL_DSP 502 select ARCH_SHMOBILE 503 select SYS_SUPPORTS_SH_CMT 504 505config CPU_SUBTYPE_SH7722 506 bool "Support SH7722 processor" 507 select CPU_SH4AL_DSP 508 select CPU_SHX2 509 select ARCH_SHMOBILE 510 select ARCH_SPARSEMEM_ENABLE 511 select SYS_SUPPORTS_NUMA 512 select SYS_SUPPORTS_SH_CMT 513 select ARCH_WANT_OPTIONAL_GPIOLIB 514 select PINCTRL 515 516config CPU_SUBTYPE_SH7366 517 bool "Support SH7366 processor" 518 select CPU_SH4AL_DSP 519 select CPU_SHX2 520 select ARCH_SHMOBILE 521 select ARCH_SPARSEMEM_ENABLE 522 select SYS_SUPPORTS_NUMA 523 select SYS_SUPPORTS_SH_CMT 524 525endchoice 526 527endif 528 529if SUPERH64 530 531choice 532 prompt "Processor sub-type selection" 533 534# SH-5 Processor Support 535 536config CPU_SUBTYPE_SH5_101 537 bool "Support SH5-101 processor" 538 select CPU_SH5 539 540config CPU_SUBTYPE_SH5_103 541 bool "Support SH5-103 processor" 542 select CPU_SH5 543 544endchoice 545 546endif 547 548source "arch/sh/mm/Kconfig" 549 550source "arch/sh/Kconfig.cpu" 551 552source "arch/sh/boards/Kconfig" 553 554menu "Timer and clock configuration" 555 556config SH_PCLK_FREQ 557 int "Peripheral clock frequency (in Hz)" 558 depends on SH_CLK_CPG_LEGACY 559 default "31250000" if CPU_SUBTYPE_SH7619 560 default "33333333" if CPU_SUBTYPE_SH7770 || \ 561 CPU_SUBTYPE_SH7760 || \ 562 CPU_SUBTYPE_SH7705 || \ 563 CPU_SUBTYPE_SH7203 || \ 564 CPU_SUBTYPE_SH7206 || \ 565 CPU_SUBTYPE_SH7263 || \ 566 CPU_SUBTYPE_MXG 567 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R 568 default "66000000" if CPU_SUBTYPE_SH4_202 569 default "50000000" 570 help 571 This option is used to specify the peripheral clock frequency. 572 This is necessary for determining the reference clock value on 573 platforms lacking an RTC. 574 575config SH_CLK_CPG 576 def_bool y 577 578config SH_CLK_CPG_LEGACY 579 depends on SH_CLK_CPG 580 def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \ 581 !CPU_SHX3 && !CPU_SUBTYPE_SH7757 && \ 582 !CPU_SUBTYPE_SH7734 && !CPU_SUBTYPE_SH7264 && \ 583 !CPU_SUBTYPE_SH7269 584 585endmenu 586 587menu "CPU Frequency scaling" 588source "drivers/cpufreq/Kconfig" 589endmenu 590 591source "arch/sh/drivers/Kconfig" 592 593endmenu 594 595menu "Kernel features" 596 597source kernel/Kconfig.hz 598 599config KEXEC 600 bool "kexec system call (EXPERIMENTAL)" 601 depends on SUPERH32 && MMU 602 select KEXEC_CORE 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/Kconfig" 852 853source "drivers/pcmcia/Kconfig" 854 855endmenu 856 857menu "Executable file formats" 858 859source "fs/Kconfig.binfmt" 860 861endmenu 862 863menu "Power management options (EXPERIMENTAL)" 864 865source "kernel/power/Kconfig" 866 867source "drivers/cpuidle/Kconfig" 868 869endmenu 870 871source "net/Kconfig" 872 873source "drivers/Kconfig" 874 875source "fs/Kconfig" 876 877source "arch/sh/Kconfig.debug" 878 879source "security/Kconfig" 880 881source "crypto/Kconfig" 882 883source "lib/Kconfig" 884