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 HAVE_EXIT_THREAD 74 select KALLSYMS 75 76config ARCH_DEFCONFIG 77 string 78 default "arch/sh/configs/shx3_defconfig" if SUPERH32 79 default "arch/sh/configs/cayman_defconfig" if SUPERH64 80 81config RWSEM_GENERIC_SPINLOCK 82 def_bool y 83 84config RWSEM_XCHGADD_ALGORITHM 85 bool 86 87config GENERIC_BUG 88 def_bool y 89 depends on BUG && SUPERH32 90 91config GENERIC_CSUM 92 def_bool y 93 depends on SUPERH64 94 95config GENERIC_HWEIGHT 96 def_bool y 97 98config GENERIC_CALIBRATE_DELAY 99 bool 100 101config GENERIC_LOCKBREAK 102 def_bool y 103 depends on SMP && PREEMPT 104 105config ARCH_SUSPEND_POSSIBLE 106 def_bool n 107 108config ARCH_HIBERNATION_POSSIBLE 109 def_bool n 110 111config SYS_SUPPORTS_APM_EMULATION 112 bool 113 select ARCH_SUSPEND_POSSIBLE 114 115config SYS_SUPPORTS_HUGETLBFS 116 bool 117 118config SYS_SUPPORTS_SMP 119 bool 120 121config SYS_SUPPORTS_NUMA 122 bool 123 124config SYS_SUPPORTS_PCI 125 bool 126 127config STACKTRACE_SUPPORT 128 def_bool y 129 130config LOCKDEP_SUPPORT 131 def_bool y 132 133config HAVE_LATENCYTOP_SUPPORT 134 def_bool y 135 136config ARCH_HAS_ILOG2_U32 137 def_bool n 138 139config ARCH_HAS_ILOG2_U64 140 def_bool n 141 142config NO_IOPORT_MAP 143 def_bool !PCI 144 depends on !SH_CAYMAN && !SH_SH4202_MICRODEV && !SH_SHMIN && \ 145 !SH_HP6XX && !SH_SOLUTION_ENGINE 146 147config IO_TRAPPED 148 bool 149 150config SWAP_IO_SPACE 151 bool 152 153config DMA_COHERENT 154 bool 155 156config DMA_NONCOHERENT 157 def_bool !DMA_COHERENT 158 159config NEED_DMA_MAP_STATE 160 def_bool DMA_NONCOHERENT 161 162config NEED_SG_DMA_LENGTH 163 def_bool y 164 165source "init/Kconfig" 166 167source "kernel/Kconfig.freezer" 168 169menu "System type" 170 171# 172# Processor families 173# 174config CPU_SH2 175 bool 176 select SH_INTC 177 178config CPU_SH2A 179 bool 180 select CPU_SH2 181 select UNCACHED_MAPPING 182 183config CPU_SH3 184 bool 185 select CPU_HAS_INTEVT 186 select CPU_HAS_SR_RB 187 select SH_INTC 188 select SYS_SUPPORTS_SH_TMU 189 190config CPU_SH4 191 bool 192 select CPU_HAS_INTEVT 193 select CPU_HAS_SR_RB 194 select CPU_HAS_FPU if !CPU_SH4AL_DSP 195 select SH_INTC 196 select SYS_SUPPORTS_SH_TMU 197 select SYS_SUPPORTS_HUGETLBFS if MMU 198 199config CPU_SH4A 200 bool 201 select CPU_SH4 202 203config CPU_SH4AL_DSP 204 bool 205 select CPU_SH4A 206 select CPU_HAS_DSP 207 208config CPU_SH5 209 bool 210 select CPU_HAS_FPU 211 select SYS_SUPPORTS_SH_TMU 212 select SYS_SUPPORTS_HUGETLBFS if MMU 213 214config CPU_SHX2 215 bool 216 217config CPU_SHX3 218 bool 219 select DMA_COHERENT 220 select SYS_SUPPORTS_SMP 221 select SYS_SUPPORTS_NUMA 222 223config ARCH_SHMOBILE 224 bool 225 select ARCH_SUSPEND_POSSIBLE 226 select PM 227 select PM_RUNTIME 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 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