1config SUPERH 2 def_bool y 3 select EXPERT 4 select CLKDEV_LOOKUP 5 select HAVE_IDE if HAS_IOPORT 6 select HAVE_MEMBLOCK 7 select HAVE_OPROFILE 8 select HAVE_GENERIC_DMA_COHERENT 9 select HAVE_ARCH_TRACEHOOK 10 select HAVE_DMA_API_DEBUG 11 select HAVE_DMA_ATTRS 12 select HAVE_IRQ_WORK 13 select HAVE_PERF_EVENTS 14 select ARCH_HAVE_NMI_SAFE_CMPXCHG if (GUSA_RB || CPU_SH4A) 15 select PERF_USE_VMALLOC 16 select HAVE_KERNEL_GZIP 17 select HAVE_KERNEL_BZIP2 18 select HAVE_KERNEL_LZMA 19 select HAVE_KERNEL_XZ 20 select HAVE_KERNEL_LZO 21 select HAVE_SYSCALL_TRACEPOINTS 22 select HAVE_REGS_AND_STACK_ACCESS_API 23 select HAVE_GENERIC_HARDIRQS 24 select HAVE_SPARSE_IRQ 25 select IRQ_FORCED_THREADING 26 select RTC_LIB 27 select GENERIC_ATOMIC64 28 select GENERIC_IRQ_SHOW 29 help 30 The SuperH is a RISC processor targeted for use in embedded systems 31 and consumer electronics; it was also used in the Sega Dreamcast 32 gaming console. The SuperH port has a home page at 33 <http://www.linux-sh.org/>. 34 35config SUPERH32 36 def_bool ARCH = "sh" 37 select HAVE_KPROBES 38 select HAVE_KRETPROBES 39 select HAVE_IOREMAP_PROT if MMU && !X2TLB 40 select HAVE_FUNCTION_TRACER 41 select HAVE_FTRACE_MCOUNT_RECORD 42 select HAVE_DYNAMIC_FTRACE 43 select HAVE_FUNCTION_TRACE_MCOUNT_TEST 44 select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE 45 select HAVE_FUNCTION_GRAPH_TRACER 46 select HAVE_ARCH_KGDB 47 select HAVE_HW_BREAKPOINT 48 select HAVE_MIXED_BREAKPOINTS_REGS 49 select PERF_EVENTS 50 select ARCH_HIBERNATION_POSSIBLE if MMU 51 select SPARSE_IRQ 52 53config SUPERH64 54 def_bool ARCH = "sh64" 55 56config ARCH_DEFCONFIG 57 string 58 default "arch/sh/configs/shx3_defconfig" if SUPERH32 59 default "arch/sh/configs/cayman_defconfig" if SUPERH64 60 61config RWSEM_GENERIC_SPINLOCK 62 def_bool y 63 64config RWSEM_XCHGADD_ALGORITHM 65 bool 66 67config GENERIC_BUG 68 def_bool y 69 depends on BUG && SUPERH32 70 71config GENERIC_CSUM 72 def_bool y 73 depends on SUPERH64 74 75config GENERIC_HWEIGHT 76 def_bool y 77 78config IRQ_PER_CPU 79 def_bool y 80 81config GENERIC_GPIO 82 def_bool n 83 84config GENERIC_CALIBRATE_DELAY 85 bool 86 87config GENERIC_IOMAP 88 bool 89 90config GENERIC_CLOCKEVENTS 91 def_bool y 92 93config GENERIC_CLOCKEVENTS_BROADCAST 94 bool 95 96config GENERIC_CMOS_UPDATE 97 def_bool y 98 depends on SH_SH03 || SH_DREAMCAST 99 100config GENERIC_LOCKBREAK 101 def_bool y 102 depends on SMP && PREEMPT 103 104config SYS_SUPPORTS_PM 105 bool 106 depends on !SMP 107 108config ARCH_SUSPEND_POSSIBLE 109 def_bool n 110 111config ARCH_HIBERNATION_POSSIBLE 112 def_bool n 113 114config SYS_SUPPORTS_APM_EMULATION 115 bool 116 select ARCH_SUSPEND_POSSIBLE 117 118config SYS_SUPPORTS_HUGETLBFS 119 bool 120 121config SYS_SUPPORTS_SMP 122 bool 123 124config SYS_SUPPORTS_NUMA 125 bool 126 127config SYS_SUPPORTS_PCI 128 bool 129 130config SYS_SUPPORTS_CMT 131 bool 132 133config SYS_SUPPORTS_MTU2 134 bool 135 136config SYS_SUPPORTS_TMU 137 bool 138 139config STACKTRACE_SUPPORT 140 def_bool y 141 142config LOCKDEP_SUPPORT 143 def_bool y 144 145config HAVE_LATENCYTOP_SUPPORT 146 def_bool y 147 148config ARCH_HAS_ILOG2_U32 149 def_bool n 150 151config ARCH_HAS_ILOG2_U64 152 def_bool n 153 154config ARCH_NO_VIRT_TO_BUS 155 def_bool y 156 157config ARCH_HAS_DEFAULT_IDLE 158 def_bool y 159 160config ARCH_HAS_CPU_IDLE_WAIT 161 def_bool y 162 163config NO_IOPORT 164 def_bool !PCI 165 depends on !SH_CAYMAN && !SH_SH4202_MICRODEV && !SH_SHMIN 166 167config IO_TRAPPED 168 bool 169 170config DMA_COHERENT 171 bool 172 173config DMA_NONCOHERENT 174 def_bool !DMA_COHERENT 175 176config NEED_DMA_MAP_STATE 177 def_bool DMA_NONCOHERENT 178 179config NEED_SG_DMA_LENGTH 180 def_bool y 181 182source "init/Kconfig" 183 184source "kernel/Kconfig.freezer" 185 186menu "System type" 187 188# 189# Processor families 190# 191config CPU_SH2 192 bool 193 194config CPU_SH2A 195 bool 196 select CPU_SH2 197 select UNCACHED_MAPPING 198 199config CPU_SH3 200 bool 201 select CPU_HAS_INTEVT 202 select CPU_HAS_SR_RB 203 select SYS_SUPPORTS_TMU 204 205config CPU_SH4 206 bool 207 select CPU_HAS_INTEVT 208 select CPU_HAS_SR_RB 209 select CPU_HAS_FPU if !CPU_SH4AL_DSP 210 select SYS_SUPPORTS_TMU 211 select SYS_SUPPORTS_HUGETLBFS if MMU 212 213config CPU_SH4A 214 bool 215 select CPU_SH4 216 217config CPU_SH4AL_DSP 218 bool 219 select CPU_SH4A 220 select CPU_HAS_DSP 221 222config CPU_SH5 223 bool 224 select CPU_HAS_FPU 225 select SYS_SUPPORTS_TMU 226 select SYS_SUPPORTS_HUGETLBFS if MMU 227 228config CPU_SHX2 229 bool 230 231config CPU_SHX3 232 bool 233 select DMA_COHERENT 234 select SYS_SUPPORTS_SMP 235 select SYS_SUPPORTS_NUMA 236 237config ARCH_SHMOBILE 238 bool 239 select ARCH_SUSPEND_POSSIBLE 240 select PM 241 select PM_RUNTIME 242 243config CPU_HAS_PMU 244 depends on CPU_SH4 || CPU_SH4A 245 default y 246 bool 247 248if SUPERH32 249 250choice 251 prompt "Processor sub-type selection" 252 253# 254# Processor subtypes 255# 256 257# SH-2 Processor Support 258 259config CPU_SUBTYPE_SH7619 260 bool "Support SH7619 processor" 261 select CPU_SH2 262 select SYS_SUPPORTS_CMT 263 264# SH-2A Processor Support 265 266config CPU_SUBTYPE_SH7201 267 bool "Support SH7201 processor" 268 select CPU_SH2A 269 select CPU_HAS_FPU 270 select SYS_SUPPORTS_MTU2 271 272config CPU_SUBTYPE_SH7203 273 bool "Support SH7203 processor" 274 select CPU_SH2A 275 select CPU_HAS_FPU 276 select SYS_SUPPORTS_CMT 277 select SYS_SUPPORTS_MTU2 278 select ARCH_WANT_OPTIONAL_GPIOLIB 279 280config CPU_SUBTYPE_SH7206 281 bool "Support SH7206 processor" 282 select CPU_SH2A 283 select SYS_SUPPORTS_CMT 284 select SYS_SUPPORTS_MTU2 285 286config CPU_SUBTYPE_SH7263 287 bool "Support SH7263 processor" 288 select CPU_SH2A 289 select CPU_HAS_FPU 290 select SYS_SUPPORTS_CMT 291 select SYS_SUPPORTS_MTU2 292 293config CPU_SUBTYPE_MXG 294 bool "Support MX-G processor" 295 select CPU_SH2A 296 select SYS_SUPPORTS_MTU2 297 help 298 Select MX-G if running on an R8A03022BG part. 299 300# SH-3 Processor Support 301 302config CPU_SUBTYPE_SH7705 303 bool "Support SH7705 processor" 304 select CPU_SH3 305 306config CPU_SUBTYPE_SH7706 307 bool "Support SH7706 processor" 308 select CPU_SH3 309 help 310 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU. 311 312config CPU_SUBTYPE_SH7707 313 bool "Support SH7707 processor" 314 select CPU_SH3 315 help 316 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU. 317 318config CPU_SUBTYPE_SH7708 319 bool "Support SH7708 processor" 320 select CPU_SH3 321 help 322 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or 323 if you have a 100 Mhz SH-3 HD6417708R CPU. 324 325config CPU_SUBTYPE_SH7709 326 bool "Support SH7709 processor" 327 select CPU_SH3 328 help 329 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU. 330 331config CPU_SUBTYPE_SH7710 332 bool "Support SH7710 processor" 333 select CPU_SH3 334 select CPU_HAS_DSP 335 help 336 Select SH7710 if you have a SH3-DSP SH7710 CPU. 337 338config CPU_SUBTYPE_SH7712 339 bool "Support SH7712 processor" 340 select CPU_SH3 341 select CPU_HAS_DSP 342 help 343 Select SH7712 if you have a SH3-DSP SH7712 CPU. 344 345config CPU_SUBTYPE_SH7720 346 bool "Support SH7720 processor" 347 select CPU_SH3 348 select CPU_HAS_DSP 349 select SYS_SUPPORTS_CMT 350 select ARCH_WANT_OPTIONAL_GPIOLIB 351 select USB_ARCH_HAS_OHCI 352 select USB_OHCI_SH if USB_OHCI_HCD 353 help 354 Select SH7720 if you have a SH3-DSP SH7720 CPU. 355 356config CPU_SUBTYPE_SH7721 357 bool "Support SH7721 processor" 358 select CPU_SH3 359 select CPU_HAS_DSP 360 select SYS_SUPPORTS_CMT 361 select USB_ARCH_HAS_OHCI 362 select USB_OHCI_SH if USB_OHCI_HCD 363 help 364 Select SH7721 if you have a SH3-DSP SH7721 CPU. 365 366# SH-4 Processor Support 367 368config CPU_SUBTYPE_SH7750 369 bool "Support SH7750 processor" 370 select CPU_SH4 371 help 372 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU. 373 374config CPU_SUBTYPE_SH7091 375 bool "Support SH7091 processor" 376 select CPU_SH4 377 help 378 Select SH7091 if you have an SH-4 based Sega device (such as 379 the Dreamcast, Naomi, and Naomi 2). 380 381config CPU_SUBTYPE_SH7750R 382 bool "Support SH7750R processor" 383 select CPU_SH4 384 385config CPU_SUBTYPE_SH7750S 386 bool "Support SH7750S processor" 387 select CPU_SH4 388 389config CPU_SUBTYPE_SH7751 390 bool "Support SH7751 processor" 391 select CPU_SH4 392 help 393 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU, 394 or if you have a HD6417751R CPU. 395 396config CPU_SUBTYPE_SH7751R 397 bool "Support SH7751R processor" 398 select CPU_SH4 399 400config CPU_SUBTYPE_SH7760 401 bool "Support SH7760 processor" 402 select CPU_SH4 403 404config CPU_SUBTYPE_SH4_202 405 bool "Support SH4-202 processor" 406 select CPU_SH4 407 408# SH-4A Processor Support 409 410config CPU_SUBTYPE_SH7723 411 bool "Support SH7723 processor" 412 select CPU_SH4A 413 select CPU_SHX2 414 select ARCH_SHMOBILE 415 select ARCH_SPARSEMEM_ENABLE 416 select SYS_SUPPORTS_CMT 417 select ARCH_WANT_OPTIONAL_GPIOLIB 418 help 419 Select SH7723 if you have an SH-MobileR2 CPU. 420 421config CPU_SUBTYPE_SH7724 422 bool "Support SH7724 processor" 423 select CPU_SH4A 424 select CPU_SHX2 425 select ARCH_SHMOBILE 426 select ARCH_SPARSEMEM_ENABLE 427 select SYS_SUPPORTS_CMT 428 select ARCH_WANT_OPTIONAL_GPIOLIB 429 help 430 Select SH7724 if you have an SH-MobileR2R CPU. 431 432config CPU_SUBTYPE_SH7757 433 bool "Support SH7757 processor" 434 select CPU_SH4A 435 select CPU_SHX2 436 select ARCH_WANT_OPTIONAL_GPIOLIB 437 select USB_ARCH_HAS_OHCI 438 select USB_ARCH_HAS_EHCI 439 help 440 Select SH7757 if you have a SH4A SH7757 CPU. 441 442config CPU_SUBTYPE_SH7763 443 bool "Support SH7763 processor" 444 select CPU_SH4A 445 select USB_ARCH_HAS_OHCI 446 select USB_OHCI_SH if USB_OHCI_HCD 447 help 448 Select SH7763 if you have a SH4A SH7763(R5S77631) CPU. 449 450config CPU_SUBTYPE_SH7770 451 bool "Support SH7770 processor" 452 select CPU_SH4A 453 454config CPU_SUBTYPE_SH7780 455 bool "Support SH7780 processor" 456 select CPU_SH4A 457 458config CPU_SUBTYPE_SH7785 459 bool "Support SH7785 processor" 460 select CPU_SH4A 461 select CPU_SHX2 462 select ARCH_SPARSEMEM_ENABLE 463 select SYS_SUPPORTS_NUMA 464 select ARCH_WANT_OPTIONAL_GPIOLIB 465 466config CPU_SUBTYPE_SH7786 467 bool "Support SH7786 processor" 468 select CPU_SH4A 469 select CPU_SHX3 470 select CPU_HAS_PTEAEX 471 select GENERIC_CLOCKEVENTS_BROADCAST if SMP 472 select ARCH_WANT_OPTIONAL_GPIOLIB 473 select USB_ARCH_HAS_OHCI 474 select USB_OHCI_SH if USB_OHCI_HCD 475 select USB_ARCH_HAS_EHCI 476 select USB_EHCI_SH if USB_EHCI_HCD 477 478config CPU_SUBTYPE_SHX3 479 bool "Support SH-X3 processor" 480 select CPU_SH4A 481 select CPU_SHX3 482 select GENERIC_CLOCKEVENTS_BROADCAST if SMP 483 select ARCH_REQUIRE_GPIOLIB 484 485# SH4AL-DSP Processor Support 486 487config CPU_SUBTYPE_SH7343 488 bool "Support SH7343 processor" 489 select CPU_SH4AL_DSP 490 select ARCH_SHMOBILE 491 select SYS_SUPPORTS_CMT 492 493config CPU_SUBTYPE_SH7722 494 bool "Support SH7722 processor" 495 select CPU_SH4AL_DSP 496 select CPU_SHX2 497 select ARCH_SHMOBILE 498 select ARCH_SPARSEMEM_ENABLE 499 select SYS_SUPPORTS_NUMA 500 select SYS_SUPPORTS_CMT 501 select ARCH_WANT_OPTIONAL_GPIOLIB 502 503config CPU_SUBTYPE_SH7366 504 bool "Support SH7366 processor" 505 select CPU_SH4AL_DSP 506 select CPU_SHX2 507 select ARCH_SHMOBILE 508 select ARCH_SPARSEMEM_ENABLE 509 select SYS_SUPPORTS_NUMA 510 select SYS_SUPPORTS_CMT 511 512endchoice 513 514endif 515 516if SUPERH64 517 518choice 519 prompt "Processor sub-type selection" 520 521# SH-5 Processor Support 522 523config CPU_SUBTYPE_SH5_101 524 bool "Support SH5-101 processor" 525 select CPU_SH5 526 527config CPU_SUBTYPE_SH5_103 528 bool "Support SH5-103 processor" 529 select CPU_SH5 530 531endchoice 532 533endif 534 535source "arch/sh/mm/Kconfig" 536 537source "arch/sh/Kconfig.cpu" 538 539source "arch/sh/boards/Kconfig" 540 541menu "Timer and clock configuration" 542 543config SH_TIMER_TMU 544 bool "TMU timer driver" 545 depends on SYS_SUPPORTS_TMU 546 default y 547 help 548 This enables the build of the TMU timer driver. 549 550config SH_TIMER_CMT 551 bool "CMT timer driver" 552 depends on SYS_SUPPORTS_CMT 553 default y 554 help 555 This enables build of the CMT timer driver. 556 557config SH_TIMER_MTU2 558 bool "MTU2 timer driver" 559 depends on SYS_SUPPORTS_MTU2 560 default y 561 help 562 This enables build of the MTU2 timer driver. 563 564config SH_PCLK_FREQ 565 int "Peripheral clock frequency (in Hz)" 566 depends on SH_CLK_CPG_LEGACY 567 default "31250000" if CPU_SUBTYPE_SH7619 568 default "33333333" if CPU_SUBTYPE_SH7770 || \ 569 CPU_SUBTYPE_SH7760 || \ 570 CPU_SUBTYPE_SH7705 || \ 571 CPU_SUBTYPE_SH7203 || \ 572 CPU_SUBTYPE_SH7206 || \ 573 CPU_SUBTYPE_SH7263 || \ 574 CPU_SUBTYPE_MXG 575 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R 576 default "66000000" if CPU_SUBTYPE_SH4_202 577 default "50000000" 578 help 579 This option is used to specify the peripheral clock frequency. 580 This is necessary for determining the reference clock value on 581 platforms lacking an RTC. 582 583config SH_CLK_CPG 584 def_bool y 585 586config SH_CLK_CPG_LEGACY 587 depends on SH_CLK_CPG 588 def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \ 589 !CPU_SHX3 && !CPU_SUBTYPE_SH7757 590 591source "kernel/time/Kconfig" 592 593endmenu 594 595menu "CPU Frequency scaling" 596 597source "drivers/cpufreq/Kconfig" 598 599config SH_CPU_FREQ 600 tristate "SuperH CPU Frequency driver" 601 depends on CPU_FREQ 602 select CPU_FREQ_TABLE 603 help 604 This adds the cpufreq driver for SuperH. Any CPU that supports 605 clock rate rounding through the clock framework can use this 606 driver. While it will make the kernel slightly larger, this is 607 harmless for CPUs that don't support rate rounding. The driver 608 will also generate a notice in the boot log before disabling 609 itself if the CPU in question is not capable of rate rounding. 610 611 For details, take a look at <file:Documentation/cpu-freq>. 612 613 If unsure, say N. 614 615endmenu 616 617source "arch/sh/drivers/Kconfig" 618 619endmenu 620 621menu "Kernel features" 622 623source kernel/Kconfig.hz 624 625config KEXEC 626 bool "kexec system call (EXPERIMENTAL)" 627 depends on SUPERH32 && EXPERIMENTAL && MMU 628 help 629 kexec is a system call that implements the ability to shutdown your 630 current kernel, and to start another kernel. It is like a reboot 631 but it is independent of the system firmware. And like a reboot 632 you can start any kernel with it, not just Linux. 633 634 The name comes from the similarity to the exec system call. 635 636 It is an ongoing process to be certain the hardware in a machine 637 is properly shutdown, so do not be surprised if this code does not 638 initially work for you. It may help to enable device hotplugging 639 support. As of this writing the exact hardware interface is 640 strongly in flux, so no good recommendation can be made. 641 642config CRASH_DUMP 643 bool "kernel crash dumps (EXPERIMENTAL)" 644 depends on SUPERH32 && EXPERIMENTAL && BROKEN_ON_SMP 645 help 646 Generate crash dump after being started by kexec. 647 This should be normally only set in special crash dump kernels 648 which are loaded in the main kernel with kexec-tools into 649 a specially reserved region and then later executed after 650 a crash by kdump/kexec. The crash dump kernel must be compiled 651 to a memory address not used by the main kernel using 652 MEMORY_START. 653 654 For more details see Documentation/kdump/kdump.txt 655 656config KEXEC_JUMP 657 bool "kexec jump (EXPERIMENTAL)" 658 depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL 659 help 660 Jump between original kernel and kexeced kernel and invoke 661 code via KEXEC 662 663config SECCOMP 664 bool "Enable seccomp to safely compute untrusted bytecode" 665 depends on PROC_FS 666 help 667 This kernel feature is useful for number crunching applications 668 that may need to compute untrusted bytecode during their 669 execution. By using pipes or other transports made available to 670 the process as file descriptors supporting the read/write 671 syscalls, it's possible to isolate those applications in 672 their own address space using seccomp. Once seccomp is 673 enabled via prctl, it cannot be disabled and the task is only 674 allowed to execute a few safe syscalls defined by each seccomp 675 mode. 676 677 If unsure, say N. 678 679config SMP 680 bool "Symmetric multi-processing support" 681 depends on SYS_SUPPORTS_SMP 682 select USE_GENERIC_SMP_HELPERS 683 ---help--- 684 This enables support for systems with more than one CPU. If you have 685 a system with only one CPU, like most personal computers, say N. If 686 you have a system with more than one CPU, say Y. 687 688 If you say N here, the kernel will run on single and multiprocessor 689 machines, but will use only one CPU of a multiprocessor machine. If 690 you say Y here, the kernel will run on many, but not all, 691 singleprocessor machines. On a singleprocessor machine, the kernel 692 will run faster if you say N here. 693 694 People using multiprocessor machines who say Y here should also say 695 Y to "Enhanced Real Time Clock Support", below. 696 697 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO 698 available at <http://www.tldp.org/docs.html#howto>. 699 700 If you don't know what to do here, say N. 701 702config NR_CPUS 703 int "Maximum number of CPUs (2-32)" 704 range 2 32 705 depends on SMP 706 default "4" if CPU_SUBTYPE_SHX3 707 default "2" 708 help 709 This allows you to specify the maximum number of CPUs which this 710 kernel will support. The maximum supported value is 32 and the 711 minimum value which makes sense is 2. 712 713 This is purely to save memory - each supported CPU adds 714 approximately eight kilobytes to the kernel image. 715 716config HOTPLUG_CPU 717 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" 718 depends on SMP && HOTPLUG && EXPERIMENTAL 719 help 720 Say Y here to experiment with turning CPUs off and on. CPUs 721 can be controlled through /sys/devices/system/cpu. 722 723source "kernel/Kconfig.preempt" 724 725config GUSA 726 def_bool y 727 depends on !SMP && SUPERH32 728 help 729 This enables support for gUSA (general UserSpace Atomicity). 730 This is the default implementation for both UP and non-ll/sc 731 CPUs, and is used by the libc, amongst others. 732 733 For additional information, design information can be found 734 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>. 735 736 This should only be disabled for special cases where alternate 737 atomicity implementations exist. 738 739config GUSA_RB 740 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)" 741 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A) 742 help 743 Enabling this option will allow the kernel to implement some 744 atomic operations using a software implementation of load-locked/ 745 store-conditional (LLSC). On machines which do not have hardware 746 LLSC, this should be more efficient than the other alternative of 747 disabling interrupts around the atomic sequence. 748 749config HW_PERF_EVENTS 750 bool "Enable hardware performance counter support for perf events" 751 depends on PERF_EVENTS && CPU_HAS_PMU 752 default y 753 help 754 Enable hardware performance counter support for perf events. If 755 disabled, perf events will use software events only. 756 757source "drivers/sh/Kconfig" 758 759endmenu 760 761menu "Boot options" 762 763config ZERO_PAGE_OFFSET 764 hex 765 default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \ 766 SH_7751_SOLUTION_ENGINE 767 default "0x00004000" if PAGE_SIZE_16KB || SH_SH03 768 default "0x00002000" if PAGE_SIZE_8KB 769 default "0x00001000" 770 help 771 This sets the default offset of zero page. 772 773config BOOT_LINK_OFFSET 774 hex 775 default "0x00210000" if SH_SHMIN 776 default "0x00400000" if SH_CAYMAN 777 default "0x00810000" if SH_7780_SOLUTION_ENGINE 778 default "0x009e0000" if SH_TITAN 779 default "0x01800000" if SH_SDK7780 780 default "0x02000000" if SH_EDOSK7760 781 default "0x00800000" 782 help 783 This option allows you to set the link address offset of the zImage. 784 This can be useful if you are on a board which has a small amount of 785 memory. 786 787config ENTRY_OFFSET 788 hex 789 default "0x00001000" if PAGE_SIZE_4KB 790 default "0x00002000" if PAGE_SIZE_8KB 791 default "0x00004000" if PAGE_SIZE_16KB 792 default "0x00010000" if PAGE_SIZE_64KB 793 default "0x00000000" 794 795config ROMIMAGE_MMCIF 796 bool "Include MMCIF loader in romImage (EXPERIMENTAL)" 797 depends on CPU_SUBTYPE_SH7724 && EXPERIMENTAL 798 help 799 Say Y here to include experimental MMCIF loading code in 800 romImage. With this enabled it is possible to write the romImage 801 kernel image to an MMC card and boot the kernel straight from 802 the reset vector. At reset the processor Mask ROM will load the 803 first part of the romImage which in turn loads the rest the kernel 804 image to RAM using the MMCIF hardware block. 805 806choice 807 prompt "Kernel command line" 808 optional 809 default CMDLINE_OVERWRITE 810 help 811 Setting this option allows the kernel command line arguments 812 to be set. 813 814config CMDLINE_OVERWRITE 815 bool "Overwrite bootloader kernel arguments" 816 help 817 Given string will overwrite any arguments passed in by 818 a bootloader. 819 820config CMDLINE_EXTEND 821 bool "Extend bootloader kernel arguments" 822 help 823 Given string will be concatenated with arguments passed in 824 by a bootloader. 825 826endchoice 827 828config CMDLINE 829 string "Kernel command line arguments string" 830 depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND 831 default "console=ttySC1,115200" 832 833endmenu 834 835menu "Bus options" 836 837config SUPERHYWAY 838 tristate "SuperHyway Bus support" 839 depends on CPU_SUBTYPE_SH4_202 840 841config MAPLE 842 bool "Maple Bus support" 843 depends on SH_DREAMCAST 844 help 845 The Maple Bus is SEGA's serial communication bus for peripherals 846 on the Dreamcast. Without this bus support you won't be able to 847 get your Dreamcast keyboard etc to work, so most users 848 probably want to say 'Y' here, unless you are only using the 849 Dreamcast with a serial line terminal or a remote network 850 connection. 851 852config PCI 853 bool "PCI support" 854 depends on SYS_SUPPORTS_PCI 855 select PCI_DOMAINS 856 help 857 Find out whether you have a PCI motherboard. PCI is the name of a 858 bus system, i.e. the way the CPU talks to the other stuff inside 859 your box. If you have PCI, say Y, otherwise N. 860 861config PCI_DOMAINS 862 bool 863 864source "drivers/pci/pcie/Kconfig" 865 866source "drivers/pci/Kconfig" 867 868source "drivers/pcmcia/Kconfig" 869 870source "drivers/pci/hotplug/Kconfig" 871 872endmenu 873 874menu "Executable file formats" 875 876source "fs/Kconfig.binfmt" 877 878endmenu 879 880menu "Power management options (EXPERIMENTAL)" 881depends on EXPERIMENTAL 882 883source "kernel/power/Kconfig" 884 885source "drivers/cpuidle/Kconfig" 886 887endmenu 888 889source "net/Kconfig" 890 891source "drivers/Kconfig" 892 893source "fs/Kconfig" 894 895source "arch/sh/Kconfig.debug" 896 897source "security/Kconfig" 898 899source "crypto/Kconfig" 900 901source "lib/Kconfig" 902