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_MEMBLOCK_NODE_MAP 8 select ARCH_DISCARD_MEMBLOCK 9 select HAVE_OPROFILE 10 select HAVE_GENERIC_DMA_COHERENT 11 select HAVE_ARCH_TRACEHOOK 12 select HAVE_DMA_API_DEBUG 13 select HAVE_DMA_ATTRS 14 select HAVE_IRQ_WORK 15 select HAVE_PERF_EVENTS 16 select ARCH_HAVE_NMI_SAFE_CMPXCHG if (GUSA_RB || CPU_SH4A) 17 select PERF_USE_VMALLOC 18 select HAVE_KERNEL_GZIP 19 select HAVE_KERNEL_BZIP2 20 select HAVE_KERNEL_LZMA 21 select HAVE_KERNEL_XZ 22 select HAVE_KERNEL_LZO 23 select HAVE_SYSCALL_TRACEPOINTS 24 select HAVE_REGS_AND_STACK_ACCESS_API 25 select HAVE_GENERIC_HARDIRQS 26 select MAY_HAVE_SPARSE_IRQ 27 select IRQ_FORCED_THREADING 28 select RTC_LIB 29 select GENERIC_ATOMIC64 30 select GENERIC_IRQ_SHOW 31 help 32 The SuperH is a RISC processor targeted for use in embedded systems 33 and consumer electronics; it was also used in the Sega Dreamcast 34 gaming console. The SuperH port has a home page at 35 <http://www.linux-sh.org/>. 36 37config SUPERH32 38 def_bool ARCH = "sh" 39 select HAVE_KPROBES 40 select HAVE_KRETPROBES 41 select HAVE_IOREMAP_PROT if MMU && !X2TLB 42 select HAVE_FUNCTION_TRACER 43 select HAVE_FTRACE_MCOUNT_RECORD 44 select HAVE_DYNAMIC_FTRACE 45 select HAVE_FUNCTION_TRACE_MCOUNT_TEST 46 select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE 47 select HAVE_FUNCTION_GRAPH_TRACER 48 select HAVE_ARCH_KGDB 49 select HAVE_HW_BREAKPOINT 50 select HAVE_MIXED_BREAKPOINTS_REGS 51 select PERF_EVENTS 52 select ARCH_HIBERNATION_POSSIBLE if MMU 53 select SPARSE_IRQ 54 55config SUPERH64 56 def_bool ARCH = "sh64" 57 58config ARCH_DEFCONFIG 59 string 60 default "arch/sh/configs/shx3_defconfig" if SUPERH32 61 default "arch/sh/configs/cayman_defconfig" if SUPERH64 62 63config RWSEM_GENERIC_SPINLOCK 64 def_bool y 65 66config RWSEM_XCHGADD_ALGORITHM 67 bool 68 69config GENERIC_BUG 70 def_bool y 71 depends on BUG && SUPERH32 72 73config GENERIC_CSUM 74 def_bool y 75 depends on SUPERH64 76 77config GENERIC_HWEIGHT 78 def_bool y 79 80config IRQ_PER_CPU 81 def_bool y 82 83config GENERIC_GPIO 84 def_bool n 85 86config GENERIC_CALIBRATE_DELAY 87 bool 88 89config GENERIC_CLOCKEVENTS 90 def_bool y 91 92config GENERIC_CLOCKEVENTS_BROADCAST 93 bool 94 95config GENERIC_CMOS_UPDATE 96 def_bool y 97 depends on SH_SH03 || SH_DREAMCAST 98 99config GENERIC_LOCKBREAK 100 def_bool y 101 depends on SMP && PREEMPT 102 103config ARCH_SUSPEND_POSSIBLE 104 def_bool n 105 106config ARCH_HIBERNATION_POSSIBLE 107 def_bool n 108 109config SYS_SUPPORTS_APM_EMULATION 110 bool 111 select ARCH_SUSPEND_POSSIBLE 112 113config SYS_SUPPORTS_HUGETLBFS 114 bool 115 116config SYS_SUPPORTS_SMP 117 bool 118 119config SYS_SUPPORTS_NUMA 120 bool 121 122config SYS_SUPPORTS_PCI 123 bool 124 125config SYS_SUPPORTS_CMT 126 bool 127 128config SYS_SUPPORTS_MTU2 129 bool 130 131config SYS_SUPPORTS_TMU 132 bool 133 134config STACKTRACE_SUPPORT 135 def_bool y 136 137config LOCKDEP_SUPPORT 138 def_bool y 139 140config HAVE_LATENCYTOP_SUPPORT 141 def_bool y 142 143config ARCH_HAS_ILOG2_U32 144 def_bool n 145 146config ARCH_HAS_ILOG2_U64 147 def_bool n 148 149config ARCH_NO_VIRT_TO_BUS 150 def_bool y 151 152config ARCH_HAS_DEFAULT_IDLE 153 def_bool y 154 155config ARCH_HAS_CPU_IDLE_WAIT 156 def_bool y 157 158config NO_IOPORT 159 def_bool !PCI 160 depends on !SH_CAYMAN && !SH_SH4202_MICRODEV && !SH_SHMIN 161 162config IO_TRAPPED 163 bool 164 165config SWAP_IO_SPACE 166 bool 167 168config DMA_COHERENT 169 bool 170 171config DMA_NONCOHERENT 172 def_bool !DMA_COHERENT 173 174config NEED_DMA_MAP_STATE 175 def_bool DMA_NONCOHERENT 176 177config NEED_SG_DMA_LENGTH 178 def_bool y 179 180source "init/Kconfig" 181 182source "kernel/Kconfig.freezer" 183 184menu "System type" 185 186# 187# Processor families 188# 189config CPU_SH2 190 bool 191 192config CPU_SH2A 193 bool 194 select CPU_SH2 195 select UNCACHED_MAPPING 196 197config CPU_SH3 198 bool 199 select CPU_HAS_INTEVT 200 select CPU_HAS_SR_RB 201 select SYS_SUPPORTS_TMU 202 203config CPU_SH4 204 bool 205 select CPU_HAS_INTEVT 206 select CPU_HAS_SR_RB 207 select CPU_HAS_FPU if !CPU_SH4AL_DSP 208 select SYS_SUPPORTS_TMU 209 select SYS_SUPPORTS_HUGETLBFS if MMU 210 211config CPU_SH4A 212 bool 213 select CPU_SH4 214 215config CPU_SH4AL_DSP 216 bool 217 select CPU_SH4A 218 select CPU_HAS_DSP 219 220config CPU_SH5 221 bool 222 select CPU_HAS_FPU 223 select SYS_SUPPORTS_TMU 224 select SYS_SUPPORTS_HUGETLBFS if MMU 225 226config CPU_SHX2 227 bool 228 229config CPU_SHX3 230 bool 231 select DMA_COHERENT 232 select SYS_SUPPORTS_SMP 233 select SYS_SUPPORTS_NUMA 234 235config ARCH_SHMOBILE 236 bool 237 select ARCH_SUSPEND_POSSIBLE 238 select PM 239 select PM_RUNTIME 240 241config CPU_HAS_PMU 242 depends on CPU_SH4 || CPU_SH4A 243 default y 244 bool 245 246if SUPERH32 247 248choice 249 prompt "Processor sub-type selection" 250 251# 252# Processor subtypes 253# 254 255# SH-2 Processor Support 256 257config CPU_SUBTYPE_SH7619 258 bool "Support SH7619 processor" 259 select CPU_SH2 260 select SYS_SUPPORTS_CMT 261 262# SH-2A Processor Support 263 264config CPU_SUBTYPE_SH7201 265 bool "Support SH7201 processor" 266 select CPU_SH2A 267 select CPU_HAS_FPU 268 select SYS_SUPPORTS_MTU2 269 270config CPU_SUBTYPE_SH7203 271 bool "Support SH7203 processor" 272 select CPU_SH2A 273 select CPU_HAS_FPU 274 select SYS_SUPPORTS_CMT 275 select SYS_SUPPORTS_MTU2 276 select ARCH_WANT_OPTIONAL_GPIOLIB 277 278config CPU_SUBTYPE_SH7206 279 bool "Support SH7206 processor" 280 select CPU_SH2A 281 select SYS_SUPPORTS_CMT 282 select SYS_SUPPORTS_MTU2 283 284config CPU_SUBTYPE_SH7263 285 bool "Support SH7263 processor" 286 select CPU_SH2A 287 select CPU_HAS_FPU 288 select SYS_SUPPORTS_CMT 289 select SYS_SUPPORTS_MTU2 290 291config CPU_SUBTYPE_MXG 292 bool "Support MX-G processor" 293 select CPU_SH2A 294 select SYS_SUPPORTS_MTU2 295 help 296 Select MX-G if running on an R8A03022BG part. 297 298# SH-3 Processor Support 299 300config CPU_SUBTYPE_SH7705 301 bool "Support SH7705 processor" 302 select CPU_SH3 303 304config CPU_SUBTYPE_SH7706 305 bool "Support SH7706 processor" 306 select CPU_SH3 307 help 308 Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU. 309 310config CPU_SUBTYPE_SH7707 311 bool "Support SH7707 processor" 312 select CPU_SH3 313 help 314 Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU. 315 316config CPU_SUBTYPE_SH7708 317 bool "Support SH7708 processor" 318 select CPU_SH3 319 help 320 Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or 321 if you have a 100 Mhz SH-3 HD6417708R CPU. 322 323config CPU_SUBTYPE_SH7709 324 bool "Support SH7709 processor" 325 select CPU_SH3 326 help 327 Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU. 328 329config CPU_SUBTYPE_SH7710 330 bool "Support SH7710 processor" 331 select CPU_SH3 332 select CPU_HAS_DSP 333 help 334 Select SH7710 if you have a SH3-DSP SH7710 CPU. 335 336config CPU_SUBTYPE_SH7712 337 bool "Support SH7712 processor" 338 select CPU_SH3 339 select CPU_HAS_DSP 340 help 341 Select SH7712 if you have a SH3-DSP SH7712 CPU. 342 343config CPU_SUBTYPE_SH7720 344 bool "Support SH7720 processor" 345 select CPU_SH3 346 select CPU_HAS_DSP 347 select SYS_SUPPORTS_CMT 348 select ARCH_WANT_OPTIONAL_GPIOLIB 349 select USB_ARCH_HAS_OHCI 350 select USB_OHCI_SH if USB_OHCI_HCD 351 help 352 Select SH7720 if you have a SH3-DSP SH7720 CPU. 353 354config CPU_SUBTYPE_SH7721 355 bool "Support SH7721 processor" 356 select CPU_SH3 357 select CPU_HAS_DSP 358 select SYS_SUPPORTS_CMT 359 select USB_ARCH_HAS_OHCI 360 select USB_OHCI_SH if USB_OHCI_HCD 361 help 362 Select SH7721 if you have a SH3-DSP SH7721 CPU. 363 364# SH-4 Processor Support 365 366config CPU_SUBTYPE_SH7750 367 bool "Support SH7750 processor" 368 select CPU_SH4 369 help 370 Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU. 371 372config CPU_SUBTYPE_SH7091 373 bool "Support SH7091 processor" 374 select CPU_SH4 375 help 376 Select SH7091 if you have an SH-4 based Sega device (such as 377 the Dreamcast, Naomi, and Naomi 2). 378 379config CPU_SUBTYPE_SH7750R 380 bool "Support SH7750R processor" 381 select CPU_SH4 382 383config CPU_SUBTYPE_SH7750S 384 bool "Support SH7750S processor" 385 select CPU_SH4 386 387config CPU_SUBTYPE_SH7751 388 bool "Support SH7751 processor" 389 select CPU_SH4 390 help 391 Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU, 392 or if you have a HD6417751R CPU. 393 394config CPU_SUBTYPE_SH7751R 395 bool "Support SH7751R processor" 396 select CPU_SH4 397 398config CPU_SUBTYPE_SH7760 399 bool "Support SH7760 processor" 400 select CPU_SH4 401 402config CPU_SUBTYPE_SH4_202 403 bool "Support SH4-202 processor" 404 select CPU_SH4 405 406# SH-4A Processor Support 407 408config CPU_SUBTYPE_SH7723 409 bool "Support SH7723 processor" 410 select CPU_SH4A 411 select CPU_SHX2 412 select ARCH_SHMOBILE 413 select ARCH_SPARSEMEM_ENABLE 414 select SYS_SUPPORTS_CMT 415 select ARCH_WANT_OPTIONAL_GPIOLIB 416 help 417 Select SH7723 if you have an SH-MobileR2 CPU. 418 419config CPU_SUBTYPE_SH7724 420 bool "Support SH7724 processor" 421 select CPU_SH4A 422 select CPU_SHX2 423 select ARCH_SHMOBILE 424 select ARCH_SPARSEMEM_ENABLE 425 select SYS_SUPPORTS_CMT 426 select ARCH_WANT_OPTIONAL_GPIOLIB 427 help 428 Select SH7724 if you have an SH-MobileR2R CPU. 429 430config CPU_SUBTYPE_SH7757 431 bool "Support SH7757 processor" 432 select CPU_SH4A 433 select CPU_SHX2 434 select ARCH_WANT_OPTIONAL_GPIOLIB 435 select USB_ARCH_HAS_OHCI 436 select USB_ARCH_HAS_EHCI 437 help 438 Select SH7757 if you have a SH4A SH7757 CPU. 439 440config CPU_SUBTYPE_SH7763 441 bool "Support SH7763 processor" 442 select CPU_SH4A 443 select USB_ARCH_HAS_OHCI 444 select USB_OHCI_SH if USB_OHCI_HCD 445 help 446 Select SH7763 if you have a SH4A SH7763(R5S77631) CPU. 447 448config CPU_SUBTYPE_SH7770 449 bool "Support SH7770 processor" 450 select CPU_SH4A 451 452config CPU_SUBTYPE_SH7780 453 bool "Support SH7780 processor" 454 select CPU_SH4A 455 456config CPU_SUBTYPE_SH7785 457 bool "Support SH7785 processor" 458 select CPU_SH4A 459 select CPU_SHX2 460 select ARCH_SPARSEMEM_ENABLE 461 select SYS_SUPPORTS_NUMA 462 select ARCH_WANT_OPTIONAL_GPIOLIB 463 464config CPU_SUBTYPE_SH7786 465 bool "Support SH7786 processor" 466 select CPU_SH4A 467 select CPU_SHX3 468 select CPU_HAS_PTEAEX 469 select GENERIC_CLOCKEVENTS_BROADCAST if SMP 470 select ARCH_WANT_OPTIONAL_GPIOLIB 471 select USB_ARCH_HAS_OHCI 472 select USB_OHCI_SH if USB_OHCI_HCD 473 select USB_ARCH_HAS_EHCI 474 select USB_EHCI_SH if USB_EHCI_HCD 475 476config CPU_SUBTYPE_SHX3 477 bool "Support SH-X3 processor" 478 select CPU_SH4A 479 select CPU_SHX3 480 select GENERIC_CLOCKEVENTS_BROADCAST if SMP 481 select ARCH_REQUIRE_GPIOLIB 482 483# SH4AL-DSP Processor Support 484 485config CPU_SUBTYPE_SH7343 486 bool "Support SH7343 processor" 487 select CPU_SH4AL_DSP 488 select ARCH_SHMOBILE 489 select SYS_SUPPORTS_CMT 490 491config CPU_SUBTYPE_SH7722 492 bool "Support SH7722 processor" 493 select CPU_SH4AL_DSP 494 select CPU_SHX2 495 select ARCH_SHMOBILE 496 select ARCH_SPARSEMEM_ENABLE 497 select SYS_SUPPORTS_NUMA 498 select SYS_SUPPORTS_CMT 499 select ARCH_WANT_OPTIONAL_GPIOLIB 500 501config CPU_SUBTYPE_SH7366 502 bool "Support SH7366 processor" 503 select CPU_SH4AL_DSP 504 select CPU_SHX2 505 select ARCH_SHMOBILE 506 select ARCH_SPARSEMEM_ENABLE 507 select SYS_SUPPORTS_NUMA 508 select SYS_SUPPORTS_CMT 509 510endchoice 511 512endif 513 514if SUPERH64 515 516choice 517 prompt "Processor sub-type selection" 518 519# SH-5 Processor Support 520 521config CPU_SUBTYPE_SH5_101 522 bool "Support SH5-101 processor" 523 select CPU_SH5 524 525config CPU_SUBTYPE_SH5_103 526 bool "Support SH5-103 processor" 527 select CPU_SH5 528 529endchoice 530 531endif 532 533source "arch/sh/mm/Kconfig" 534 535source "arch/sh/Kconfig.cpu" 536 537source "arch/sh/boards/Kconfig" 538 539menu "Timer and clock configuration" 540 541config SH_TIMER_TMU 542 bool "TMU timer driver" 543 depends on SYS_SUPPORTS_TMU 544 default y 545 help 546 This enables the build of the TMU timer driver. 547 548config SH_TIMER_CMT 549 bool "CMT timer driver" 550 depends on SYS_SUPPORTS_CMT 551 default y 552 help 553 This enables build of the CMT timer driver. 554 555config SH_TIMER_MTU2 556 bool "MTU2 timer driver" 557 depends on SYS_SUPPORTS_MTU2 558 default y 559 help 560 This enables build of the MTU2 timer driver. 561 562config SH_PCLK_FREQ 563 int "Peripheral clock frequency (in Hz)" 564 depends on SH_CLK_CPG_LEGACY 565 default "31250000" if CPU_SUBTYPE_SH7619 566 default "33333333" if CPU_SUBTYPE_SH7770 || \ 567 CPU_SUBTYPE_SH7760 || \ 568 CPU_SUBTYPE_SH7705 || \ 569 CPU_SUBTYPE_SH7203 || \ 570 CPU_SUBTYPE_SH7206 || \ 571 CPU_SUBTYPE_SH7263 || \ 572 CPU_SUBTYPE_MXG 573 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R 574 default "66000000" if CPU_SUBTYPE_SH4_202 575 default "50000000" 576 help 577 This option is used to specify the peripheral clock frequency. 578 This is necessary for determining the reference clock value on 579 platforms lacking an RTC. 580 581config SH_CLK_CPG 582 def_bool y 583 584config SH_CLK_CPG_LEGACY 585 depends on SH_CLK_CPG 586 def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \ 587 !CPU_SHX3 && !CPU_SUBTYPE_SH7757 588 589source "kernel/time/Kconfig" 590 591endmenu 592 593menu "CPU Frequency scaling" 594 595source "drivers/cpufreq/Kconfig" 596 597config SH_CPU_FREQ 598 tristate "SuperH CPU Frequency driver" 599 depends on CPU_FREQ 600 select CPU_FREQ_TABLE 601 help 602 This adds the cpufreq driver for SuperH. Any CPU that supports 603 clock rate rounding through the clock framework can use this 604 driver. While it will make the kernel slightly larger, this is 605 harmless for CPUs that don't support rate rounding. The driver 606 will also generate a notice in the boot log before disabling 607 itself if the CPU in question is not capable of rate rounding. 608 609 For details, take a look at <file:Documentation/cpu-freq>. 610 611 If unsure, say N. 612 613endmenu 614 615source "arch/sh/drivers/Kconfig" 616 617endmenu 618 619menu "Kernel features" 620 621source kernel/Kconfig.hz 622 623config KEXEC 624 bool "kexec system call (EXPERIMENTAL)" 625 depends on SUPERH32 && EXPERIMENTAL && MMU 626 help 627 kexec is a system call that implements the ability to shutdown your 628 current kernel, and to start another kernel. It is like a reboot 629 but it is independent of the system firmware. And like a reboot 630 you can start any kernel with it, not just Linux. 631 632 The name comes from the similarity to the exec system call. 633 634 It is an ongoing process to be certain the hardware in a machine 635 is properly shutdown, so do not be surprised if this code does not 636 initially work for you. It may help to enable device hotplugging 637 support. As of this writing the exact hardware interface is 638 strongly in flux, so no good recommendation can be made. 639 640config CRASH_DUMP 641 bool "kernel crash dumps (EXPERIMENTAL)" 642 depends on SUPERH32 && EXPERIMENTAL && BROKEN_ON_SMP 643 help 644 Generate crash dump after being started by kexec. 645 This should be normally only set in special crash dump kernels 646 which are loaded in the main kernel with kexec-tools into 647 a specially reserved region and then later executed after 648 a crash by kdump/kexec. The crash dump kernel must be compiled 649 to a memory address not used by the main kernel using 650 PHYSICAL_START. 651 652 For more details see Documentation/kdump/kdump.txt 653 654config KEXEC_JUMP 655 bool "kexec jump (EXPERIMENTAL)" 656 depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL 657 help 658 Jump between original kernel and kexeced kernel and invoke 659 code via KEXEC 660 661config PHYSICAL_START 662 hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP) 663 default MEMORY_START 664 ---help--- 665 This gives the physical address where the kernel is loaded 666 and is ordinarily the same as MEMORY_START. 667 668 Different values are primarily used in the case of kexec on panic 669 where the fail safe kernel needs to run at a different address 670 than the panic-ed kernel. 671 672config SECCOMP 673 bool "Enable seccomp to safely compute untrusted bytecode" 674 depends on PROC_FS 675 help 676 This kernel feature is useful for number crunching applications 677 that may need to compute untrusted bytecode during their 678 execution. By using pipes or other transports made available to 679 the process as file descriptors supporting the read/write 680 syscalls, it's possible to isolate those applications in 681 their own address space using seccomp. Once seccomp is 682 enabled via prctl, it cannot be disabled and the task is only 683 allowed to execute a few safe syscalls defined by each seccomp 684 mode. 685 686 If unsure, say N. 687 688config SMP 689 bool "Symmetric multi-processing support" 690 depends on SYS_SUPPORTS_SMP 691 select USE_GENERIC_SMP_HELPERS 692 ---help--- 693 This enables support for systems with more than one CPU. If you have 694 a system with only one CPU, like most personal computers, say N. If 695 you have a system with more than one CPU, say Y. 696 697 If you say N here, the kernel will run on single and multiprocessor 698 machines, but will use only one CPU of a multiprocessor machine. If 699 you say Y here, the kernel will run on many, but not all, 700 singleprocessor machines. On a singleprocessor machine, the kernel 701 will run faster if you say N here. 702 703 People using multiprocessor machines who say Y here should also say 704 Y to "Enhanced Real Time Clock Support", below. 705 706 See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO 707 available at <http://www.tldp.org/docs.html#howto>. 708 709 If you don't know what to do here, say N. 710 711config NR_CPUS 712 int "Maximum number of CPUs (2-32)" 713 range 2 32 714 depends on SMP 715 default "4" if CPU_SUBTYPE_SHX3 716 default "2" 717 help 718 This allows you to specify the maximum number of CPUs which this 719 kernel will support. The maximum supported value is 32 and the 720 minimum value which makes sense is 2. 721 722 This is purely to save memory - each supported CPU adds 723 approximately eight kilobytes to the kernel image. 724 725config HOTPLUG_CPU 726 bool "Support for hot-pluggable CPUs (EXPERIMENTAL)" 727 depends on SMP && HOTPLUG && EXPERIMENTAL 728 help 729 Say Y here to experiment with turning CPUs off and on. CPUs 730 can be controlled through /sys/devices/system/cpu. 731 732source "kernel/Kconfig.preempt" 733 734config GUSA 735 def_bool y 736 depends on !SMP && SUPERH32 737 help 738 This enables support for gUSA (general UserSpace Atomicity). 739 This is the default implementation for both UP and non-ll/sc 740 CPUs, and is used by the libc, amongst others. 741 742 For additional information, design information can be found 743 in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>. 744 745 This should only be disabled for special cases where alternate 746 atomicity implementations exist. 747 748config GUSA_RB 749 bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)" 750 depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A) 751 help 752 Enabling this option will allow the kernel to implement some 753 atomic operations using a software implementation of load-locked/ 754 store-conditional (LLSC). On machines which do not have hardware 755 LLSC, this should be more efficient than the other alternative of 756 disabling interrupts around the atomic sequence. 757 758config HW_PERF_EVENTS 759 bool "Enable hardware performance counter support for perf events" 760 depends on PERF_EVENTS && CPU_HAS_PMU 761 default y 762 help 763 Enable hardware performance counter support for perf events. If 764 disabled, perf events will use software events only. 765 766source "drivers/sh/Kconfig" 767 768endmenu 769 770menu "Boot options" 771 772config ZERO_PAGE_OFFSET 773 hex 774 default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \ 775 SH_7751_SOLUTION_ENGINE 776 default "0x00004000" if PAGE_SIZE_16KB || SH_SH03 777 default "0x00002000" if PAGE_SIZE_8KB 778 default "0x00001000" 779 help 780 This sets the default offset of zero page. 781 782config BOOT_LINK_OFFSET 783 hex 784 default "0x00210000" if SH_SHMIN 785 default "0x00400000" if SH_CAYMAN 786 default "0x00810000" if SH_7780_SOLUTION_ENGINE 787 default "0x009e0000" if SH_TITAN 788 default "0x01800000" if SH_SDK7780 789 default "0x02000000" if SH_EDOSK7760 790 default "0x00800000" 791 help 792 This option allows you to set the link address offset of the zImage. 793 This can be useful if you are on a board which has a small amount of 794 memory. 795 796config ENTRY_OFFSET 797 hex 798 default "0x00001000" if PAGE_SIZE_4KB 799 default "0x00002000" if PAGE_SIZE_8KB 800 default "0x00004000" if PAGE_SIZE_16KB 801 default "0x00010000" if PAGE_SIZE_64KB 802 default "0x00000000" 803 804config ROMIMAGE_MMCIF 805 bool "Include MMCIF loader in romImage (EXPERIMENTAL)" 806 depends on CPU_SUBTYPE_SH7724 && EXPERIMENTAL 807 help 808 Say Y here to include experimental MMCIF loading code in 809 romImage. With this enabled it is possible to write the romImage 810 kernel image to an MMC card and boot the kernel straight from 811 the reset vector. At reset the processor Mask ROM will load the 812 first part of the romImage which in turn loads the rest the kernel 813 image to RAM using the MMCIF hardware block. 814 815choice 816 prompt "Kernel command line" 817 optional 818 default CMDLINE_OVERWRITE 819 help 820 Setting this option allows the kernel command line arguments 821 to be set. 822 823config CMDLINE_OVERWRITE 824 bool "Overwrite bootloader kernel arguments" 825 help 826 Given string will overwrite any arguments passed in by 827 a bootloader. 828 829config CMDLINE_EXTEND 830 bool "Extend bootloader kernel arguments" 831 help 832 Given string will be concatenated with arguments passed in 833 by a bootloader. 834 835endchoice 836 837config CMDLINE 838 string "Kernel command line arguments string" 839 depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND 840 default "console=ttySC1,115200" 841 842endmenu 843 844menu "Bus options" 845 846config SUPERHYWAY 847 tristate "SuperHyway Bus support" 848 depends on CPU_SUBTYPE_SH4_202 849 850config MAPLE 851 bool "Maple Bus support" 852 depends on SH_DREAMCAST 853 help 854 The Maple Bus is SEGA's serial communication bus for peripherals 855 on the Dreamcast. Without this bus support you won't be able to 856 get your Dreamcast keyboard etc to work, so most users 857 probably want to say 'Y' here, unless you are only using the 858 Dreamcast with a serial line terminal or a remote network 859 connection. 860 861config PCI 862 bool "PCI support" 863 depends on SYS_SUPPORTS_PCI 864 select PCI_DOMAINS 865 select GENERIC_PCI_IOMAP 866 select NO_GENERIC_PCI_IOPORT_MAP 867 help 868 Find out whether you have a PCI motherboard. PCI is the name of a 869 bus system, i.e. the way the CPU talks to the other stuff inside 870 your box. If you have PCI, say Y, otherwise N. 871 872config PCI_DOMAINS 873 bool 874 875source "drivers/pci/pcie/Kconfig" 876 877source "drivers/pci/Kconfig" 878 879source "drivers/pcmcia/Kconfig" 880 881source "drivers/pci/hotplug/Kconfig" 882 883endmenu 884 885menu "Executable file formats" 886 887source "fs/Kconfig.binfmt" 888 889endmenu 890 891menu "Power management options (EXPERIMENTAL)" 892depends on EXPERIMENTAL 893 894source "kernel/power/Kconfig" 895 896source "drivers/cpuidle/Kconfig" 897 898endmenu 899 900source "net/Kconfig" 901 902source "drivers/Kconfig" 903 904source "fs/Kconfig" 905 906source "arch/sh/Kconfig.debug" 907 908source "security/Kconfig" 909 910source "crypto/Kconfig" 911 912source "lib/Kconfig" 913