1# 2# For a description of the syntax of this configuration file, 3# see Documentation/kbuild/kconfig-language.txt. 4# 5 6mainmenu "Linux/SuperH Kernel Configuration" 7 8config SUPERH 9 bool 10 default y 11 select EMBEDDED 12 help 13 The SuperH is a RISC processor targeted for use in embedded systems 14 and consumer electronics; it was also used in the Sega Dreamcast 15 gaming console. The SuperH port has a home page at 16 <http://www.linux-sh.org/>. 17 18config RWSEM_GENERIC_SPINLOCK 19 bool 20 default y 21 22config RWSEM_XCHGADD_ALGORITHM 23 bool 24 25config GENERIC_FIND_NEXT_BIT 26 bool 27 default y 28 29config GENERIC_HWEIGHT 30 bool 31 default y 32 33config GENERIC_HARDIRQS 34 bool 35 default y 36 37config GENERIC_IRQ_PROBE 38 bool 39 default y 40 41config GENERIC_CALIBRATE_DELAY 42 bool 43 default y 44 45config GENERIC_IOMAP 46 bool 47 48config GENERIC_TIME 49 def_bool n 50 51config ARCH_MAY_HAVE_PC_FDC 52 bool 53 54config STACKTRACE_SUPPORT 55 bool 56 default y 57 58config LOCKDEP_SUPPORT 59 bool 60 default y 61 62config ARCH_HAS_ILOG2_U32 63 bool 64 default n 65 66config ARCH_HAS_ILOG2_U64 67 bool 68 default n 69 70source "init/Kconfig" 71 72menu "System type" 73 74config SOLUTION_ENGINE 75 bool 76 77choice 78 prompt "SuperH system type" 79 default SH_UNKNOWN 80 81config SH_SOLUTION_ENGINE 82 bool "SolutionEngine" 83 select SOLUTION_ENGINE 84 help 85 Select SolutionEngine if configuring for a Hitachi SH7709 86 or SH7750 evaluation board. 87 88config SH_7751_SOLUTION_ENGINE 89 bool "SolutionEngine7751" 90 select SOLUTION_ENGINE 91 select CPU_SUBTYPE_SH7751 92 help 93 Select 7751 SolutionEngine if configuring for a Hitachi SH7751 94 evaluation board. 95 96config SH_7300_SOLUTION_ENGINE 97 bool "SolutionEngine7300" 98 select SOLUTION_ENGINE 99 select CPU_SUBTYPE_SH7300 100 help 101 Select 7300 SolutionEngine if configuring for a Hitachi 102 SH7300(SH-Mobile V) evaluation board. 103 104config SH_7343_SOLUTION_ENGINE 105 bool "SolutionEngine7343" 106 select SOLUTION_ENGINE 107 select CPU_SUBTYPE_SH7343 108 help 109 Select 7343 SolutionEngine if configuring for a Hitachi 110 SH7343 (SH-Mobile 3AS) evaluation board. 111 112config SH_73180_SOLUTION_ENGINE 113 bool "SolutionEngine73180" 114 select SOLUTION_ENGINE 115 select CPU_SUBTYPE_SH73180 116 help 117 Select 73180 SolutionEngine if configuring for a Hitachi 118 SH73180(SH-Mobile 3) evaluation board. 119 120config SH_7751_SYSTEMH 121 bool "SystemH7751R" 122 select CPU_SUBTYPE_SH7751R 123 help 124 Select SystemH if you are configuring for a Renesas SystemH 125 7751R evaluation board. 126 127config SH_HP6XX 128 bool "HP6XX" 129 help 130 Select HP6XX if configuring for a HP jornada HP6xx. 131 More information (hardware only) at 132 <http://www.hp.com/jornada/>. 133 134config SH_EC3104 135 bool "EC3104" 136 help 137 Select EC3104 if configuring for a system with an Eclipse 138 International EC3104 chip, e.g. the Harris AD2000. 139 140config SH_SATURN 141 bool "Saturn" 142 select CPU_SUBTYPE_SH7604 143 help 144 Select Saturn if configuring for a SEGA Saturn. 145 146config SH_DREAMCAST 147 bool "Dreamcast" 148 select CPU_SUBTYPE_SH7091 149 help 150 Select Dreamcast if configuring for a SEGA Dreamcast. 151 More information at 152 <http://www.m17n.org/linux-sh/dreamcast/>. There is a 153 Dreamcast project is at <http://linuxdc.sourceforge.net/>. 154 155config SH_BIGSUR 156 bool "BigSur" 157 158config SH_MPC1211 159 bool "Interface MPC1211" 160 help 161 CTP/PCI-SH02 is a CPU module computer that is produced 162 by Interface Corporation. 163 More information at <http://www.interface.co.jp> 164 165config SH_SH03 166 bool "Interface CTP/PCI-SH03" 167 help 168 CTP/PCI-SH03 is a CPU module computer that is produced 169 by Interface Corporation. 170 More information at <http://www.interface.co.jp> 171 172config SH_SECUREEDGE5410 173 bool "SecureEdge5410" 174 select CPU_SUBTYPE_SH7751R 175 help 176 Select SecureEdge5410 if configuring for a SnapGear SH board. 177 This includes both the OEM SecureEdge products as well as the 178 SME product line. 179 180config SH_HS7751RVOIP 181 bool "HS7751RVOIP" 182 select CPU_SUBTYPE_SH7751R 183 help 184 Select HS7751RVOIP if configuring for a Renesas Technology 185 Sales VoIP board. 186 187config SH_7710VOIPGW 188 bool "SH7710-VOIP-GW" 189 select CPU_SUBTYPE_SH7710 190 help 191 Select this option to build a kernel for the SH7710 based 192 VOIP GW. 193 194config SH_RTS7751R2D 195 bool "RTS7751R2D" 196 select CPU_SUBTYPE_SH7751R 197 help 198 Select RTS7751R2D if configuring for a Renesas Technology 199 Sales SH-Graphics board. 200 201config SH_R7780RP 202 bool "R7780RP-1" 203 select CPU_SUBTYPE_SH7780 204 help 205 Select R7780RP-1 if configuring for a Renesas Solutions 206 HIGHLANDER board. 207 208config SH_EDOSK7705 209 bool "EDOSK7705" 210 select CPU_SUBTYPE_SH7705 211 212config SH_SH4202_MICRODEV 213 bool "SH4-202 MicroDev" 214 select CPU_SUBTYPE_SH4_202 215 help 216 Select SH4-202 MicroDev if configuring for a SuperH MicroDev board 217 with an SH4-202 CPU. 218 219config SH_LANDISK 220 bool "LANDISK" 221 select CPU_SUBTYPE_SH7751R 222 help 223 I-O DATA DEVICE, INC. "LANDISK Series" support. 224 225config SH_TITAN 226 bool "TITAN" 227 select CPU_SUBTYPE_SH7751R 228 help 229 Select Titan if you are configuring for a Nimble Microsystems 230 NetEngine NP51R. 231 232config SH_SHMIN 233 bool "SHMIN" 234 select CPU_SUBTYPE_SH7706 235 help 236 Select SHMIN if configuring for the SHMIN board. 237 238config SH_7206_SOLUTION_ENGINE 239 bool "SolutionEngine7206" 240 select CPU_SUBTYPE_SH7206 241 help 242 Select 7206 SolutionEngine if configuring for a Hitachi SH7206 243 evaluation board. 244 245config SH_7619_SOLUTION_ENGINE 246 bool "SolutionEngine7619" 247 select CPU_SUBTYPE_SH7619 248 help 249 Select 7619 SolutionEngine if configuring for a Hitachi SH7619 250 evaluation board. 251 252config SH_UNKNOWN 253 bool "BareCPU" 254 help 255 "Bare CPU" aka "unknown" means an SH-based system which is not one 256 of the specific ones mentioned above, which means you need to enter 257 all sorts of stuff like CONFIG_MEMORY_START because the config 258 system doesn't already know what it is. You get a machine vector 259 without any platform-specific code in it, so things like the RTC may 260 not work. 261 262 This option is for the early stages of porting to a new machine. 263 264endchoice 265 266source "arch/sh/mm/Kconfig" 267 268config CF_ENABLER 269 bool "Compact Flash Enabler support" 270 depends on SH_SOLUTION_ENGINE || SH_UNKNOWN || SH_SH03 271 ---help--- 272 Compact Flash is a small, removable mass storage device introduced 273 in 1994 originally as a PCMCIA device. If you say `Y' here, you 274 compile in support for Compact Flash devices directly connected to 275 a SuperH processor. A Compact Flash FAQ is available at 276 <http://www.compactflash.org/faqs/faq.htm>. 277 278 If your board has "Directly Connected" CompactFlash at area 5 or 6, 279 you may want to enable this option. Then, you can use CF as 280 primary IDE drive (only tested for SanDisk). 281 282 If in doubt, select 'N'. 283 284choice 285 prompt "Compact Flash Connection Area" 286 depends on CF_ENABLER 287 default CF_AREA6 288 289config CF_AREA5 290 bool "Area5" 291 help 292 If your board has "Directly Connected" CompactFlash, You should 293 select the area where your CF is connected to. 294 295 - "Area5" if CompactFlash is connected to Area 5 (0x14000000) 296 - "Area6" if it is connected to Area 6 (0x18000000) 297 298 "Area6" will work for most boards. 299 300config CF_AREA6 301 bool "Area6" 302 303endchoice 304 305config CF_BASE_ADDR 306 hex 307 depends on CF_ENABLER 308 default "0xb8000000" if CF_AREA6 309 default "0xb4000000" if CF_AREA5 310 311menu "Processor features" 312 313choice 314 prompt "Endianess selection" 315 default CPU_LITTLE_ENDIAN 316 help 317 Some SuperH machines can be configured for either little or big 318 endian byte order. These modes require different kernels. 319 320config CPU_LITTLE_ENDIAN 321 bool "Little Endian" 322 323config CPU_BIG_ENDIAN 324 bool "Big Endian" 325 326endchoice 327 328config SH_FPU 329 bool "FPU support" 330 depends on !CPU_SH3 331 default y 332 help 333 Selecting this option will enable support for SH processors that 334 have FPU units (ie, SH77xx). 335 336 This option must be set in order to enable the FPU. 337 338config SH_FPU_EMU 339 bool "FPU emulation support" 340 depends on !SH_FPU && EXPERIMENTAL 341 default n 342 help 343 Selecting this option will enable support for software FPU emulation. 344 Most SH-3 users will want to say Y here, whereas most SH-4 users will 345 want to say N. 346 347config SH_DSP 348 bool "DSP support" 349 default y if SH4AL_DSP || !CPU_SH4 350 default n 351 help 352 Selecting this option will enable support for SH processors that 353 have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP). 354 355 This option must be set in order to enable the DSP. 356 357config SH_ADC 358 bool "ADC support" 359 depends on CPU_SH3 360 default y 361 help 362 Selecting this option will allow the Linux kernel to use SH3 on-chip 363 ADC module. 364 365 If unsure, say N. 366 367config SH_STORE_QUEUES 368 bool "Support for Store Queues" 369 depends on CPU_SH4 370 help 371 Selecting this option will enable an in-kernel API for manipulating 372 the store queues integrated in the SH-4 processors. 373 374config CPU_HAS_INTEVT 375 bool 376 377config CPU_HAS_PINT_IRQ 378 bool 379 380config CPU_HAS_MASKREG_IRQ 381 bool 382 383config CPU_HAS_INTC2_IRQ 384 bool 385 386config CPU_HAS_IPR_IRQ 387 bool 388 389config CPU_HAS_SR_RB 390 bool "CPU has SR.RB" 391 depends on CPU_SH3 || CPU_SH4 392 default y 393 help 394 This will enable the use of SR.RB register bank usage. Processors 395 that are lacking this bit must have another method in place for 396 accomplishing what is taken care of by the banked registers. 397 398 See <file:Documentation/sh/register-banks.txt> for further 399 information on SR.RB and register banking in the kernel in general. 400 401config CPU_HAS_PTEA 402 bool 403 404endmenu 405 406menu "Timer support" 407depends on !GENERIC_TIME 408 409config SH_TMU 410 bool "TMU timer support" 411 depends on CPU_SH3 || CPU_SH4 412 default y 413 help 414 This enables the use of the TMU as the system timer. 415 416config SH_CMT 417 bool "CMT timer support" 418 depends on CPU_SH2 419 default y 420 help 421 This enables the use of the CMT as the system timer. 422 423config SH_MTU2 424 bool "MTU2 timer support" 425 depends on CPU_SH2A 426 default n 427 help 428 This enables the use of the MTU2 as the system timer. 429 430endmenu 431 432source "arch/sh/boards/renesas/hs7751rvoip/Kconfig" 433 434source "arch/sh/boards/renesas/rts7751r2d/Kconfig" 435 436source "arch/sh/boards/renesas/r7780rp/Kconfig" 437 438config SH_TIMER_IRQ 439 int 440 default "28" if CPU_SUBTYPE_SH7780 441 default "86" if CPU_SUBTYPE_SH7619 442 default "140" if CPU_SUBTYPE_SH7206 443 default "16" 444 445config NO_IDLE_HZ 446 bool "Dynamic tick timer" 447 help 448 Select this option if you want to disable continuous timer ticks 449 and have them programmed to occur as required. This option saves 450 power as the system can remain in idle state for longer. 451 452 By default dynamic tick is disabled during the boot, and can be 453 manually enabled with: 454 455 echo 1 > /sys/devices/system/timer/timer0/dyn_tick 456 457 Alternatively, if you want dynamic tick automatically enabled 458 during boot, pass "dyntick=enable" via the kernel command string. 459 460 Please note that dynamic tick may affect the accuracy of 461 timekeeping on some platforms depending on the implementation. 462 463config SH_PCLK_FREQ 464 int "Peripheral clock frequency (in Hz)" 465 default "27000000" if CPU_SUBTYPE_SH73180 || CPU_SUBTYPE_SH7343 466 default "31250000" if CPU_SUBTYPE_SH7619 467 default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || \ 468 CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \ 469 CPU_SUBTYPE_SH7206 470 default "50000000" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7780 471 default "60000000" if CPU_SUBTYPE_SH7751 472 default "66000000" if CPU_SUBTYPE_SH4_202 473 help 474 This option is used to specify the peripheral clock frequency. 475 This is necessary for determining the reference clock value on 476 platforms lacking an RTC. 477 478config SH_CLK_MD 479 int "CPU Mode Pin Setting" 480 depends on CPU_SUBTYPE_SH7619 || CPU_SUBTYPE_SH7206 481 help 482 MD2 - MD0 pin setting. 483 484menu "CPU Frequency scaling" 485 486source "drivers/cpufreq/Kconfig" 487 488config SH_CPU_FREQ 489 tristate "SuperH CPU Frequency driver" 490 depends on CPU_FREQ 491 select CPU_FREQ_TABLE 492 help 493 This adds the cpufreq driver for SuperH. At present, only 494 the SH-4 is supported. 495 496 For details, take a look at <file:Documentation/cpu-freq>. 497 498 If unsure, say N. 499 500endmenu 501 502source "arch/sh/drivers/dma/Kconfig" 503 504source "arch/sh/cchips/Kconfig" 505 506config HEARTBEAT 507 bool "Heartbeat LED" 508 depends on SH_MPC1211 || SH_SH03 || \ 509 SH_BIGSUR || SOLUTION_ENGINE || \ 510 SH_RTS7751R2D || SH_SH4202_MICRODEV || SH_LANDISK 511 help 512 Use the power-on LED on your machine as a load meter. The exact 513 behavior is platform-dependent, but normally the flash frequency is 514 a hyperbolic function of the 5-minute load average. 515 516source "arch/sh/drivers/Kconfig" 517 518endmenu 519 520config ISA_DMA_API 521 bool 522 depends on SH_MPC1211 523 default y 524 525menu "Kernel features" 526 527source kernel/Kconfig.hz 528 529config KEXEC 530 bool "kexec system call (EXPERIMENTAL)" 531 depends on EXPERIMENTAL 532 help 533 kexec is a system call that implements the ability to shutdown your 534 current kernel, and to start another kernel. It is like a reboot 535 but it is independent of the system firmware. And like a reboot 536 you can start any kernel with it, not just Linux. 537 538 The name comes from the similarity to the exec system call. 539 540 It is an ongoing process to be certain the hardware in a machine 541 is properly shutdown, so do not be surprised if this code does not 542 initially work for you. It may help to enable device hotplugging 543 support. As of this writing the exact hardware interface is 544 strongly in flux, so no good recommendation can be made. 545 546config SMP 547 bool "Symmetric multi-processing support" 548 ---help--- 549 This enables support for systems with more than one CPU. If you have 550 a system with only one CPU, like most personal computers, say N. If 551 you have a system with more than one CPU, say Y. 552 553 If you say N here, the kernel will run on single and multiprocessor 554 machines, but will use only one CPU of a multiprocessor machine. If 555 you say Y here, the kernel will run on many, but not all, 556 singleprocessor machines. On a singleprocessor machine, the kernel 557 will run faster if you say N here. 558 559 People using multiprocessor machines who say Y here should also say 560 Y to "Enhanced Real Time Clock Support", below. 561 562 See also the <file:Documentation/smp.txt>, 563 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available 564 at <http://www.tldp.org/docs.html#howto>. 565 566 If you don't know what to do here, say N. 567 568config NR_CPUS 569 int "Maximum number of CPUs (2-32)" 570 range 2 32 571 depends on SMP 572 default "2" 573 help 574 This allows you to specify the maximum number of CPUs which this 575 kernel will support. The maximum supported value is 32 and the 576 minimum value which makes sense is 2. 577 578 This is purely to save memory - each supported CPU adds 579 approximately eight kilobytes to the kernel image. 580 581source "kernel/Kconfig.preempt" 582 583config NODES_SHIFT 584 int 585 default "1" 586 depends on NEED_MULTIPLE_NODES 587 588endmenu 589 590menu "Boot options" 591 592config ZERO_PAGE_OFFSET 593 hex "Zero page offset" 594 default "0x00004000" if SH_MPC1211 || SH_SH03 595 default "0x00001000" 596 help 597 This sets the default offset of zero page. 598 599config BOOT_LINK_OFFSET 600 hex "Link address offset for booting" 601 default "0x00800000" 602 help 603 This option allows you to set the link address offset of the zImage. 604 This can be useful if you are on a board which has a small amount of 605 memory. 606 607config UBC_WAKEUP 608 bool "Wakeup UBC on startup" 609 help 610 Selecting this option will wakeup the User Break Controller (UBC) on 611 startup. Although the UBC is left in an awake state when the processor 612 comes up, some boot loaders misbehave by putting the UBC to sleep in a 613 power saving state, which causes issues with things like ptrace(). 614 615 If unsure, say N. 616 617config CMDLINE_BOOL 618 bool "Default bootloader kernel arguments" 619 620config CMDLINE 621 string "Initial kernel command string" 622 depends on CMDLINE_BOOL 623 default "console=ttySC1,115200" 624 625endmenu 626 627menu "Bus options" 628 629# Even on SuperH devices which don't have an ISA bus, 630# this variable helps the PCMCIA modules handle 631# IRQ requesting properly -- Greg Banks. 632# 633# Though we're generally not interested in it when 634# we're not using PCMCIA, so we make it dependent on 635# PCMCIA outright. -- PFM. 636config ISA 637 bool 638 default y if PCMCIA 639 help 640 Find out whether you have ISA slots on your motherboard. ISA is the 641 name of a bus system, i.e. the way the CPU talks to the other stuff 642 inside your box. Other bus systems are PCI, EISA, MicroChannel 643 (MCA) or VESA. ISA is an older system, now being displaced by PCI; 644 newer boards don't support it. If you have ISA, say Y, otherwise N. 645 646config EISA 647 bool 648 ---help--- 649 The Extended Industry Standard Architecture (EISA) bus was 650 developed as an open alternative to the IBM MicroChannel bus. 651 652 The EISA bus provided some of the features of the IBM MicroChannel 653 bus while maintaining backward compatibility with cards made for 654 the older ISA bus. The EISA bus saw limited use between 1988 and 655 1995 when it was made obsolete by the PCI bus. 656 657 Say Y here if you are building a kernel for an EISA-based machine. 658 659 Otherwise, say N. 660 661config MCA 662 bool 663 help 664 MicroChannel Architecture is found in some IBM PS/2 machines and 665 laptops. It is a bus system similar to PCI or ISA. See 666 <file:Documentation/mca.txt> (and especially the web page given 667 there) before attempting to build an MCA bus kernel. 668 669config SBUS 670 bool 671 672config SUPERHYWAY 673 tristate "SuperHyway Bus support" 674 depends on CPU_SUBTYPE_SH4_202 675 676source "arch/sh/drivers/pci/Kconfig" 677 678source "drivers/pci/Kconfig" 679 680source "drivers/pcmcia/Kconfig" 681 682source "drivers/pci/hotplug/Kconfig" 683 684endmenu 685 686menu "Executable file formats" 687 688source "fs/Kconfig.binfmt" 689 690endmenu 691 692menu "Power management options (EXPERIMENTAL)" 693depends on EXPERIMENTAL 694 695source kernel/power/Kconfig 696 697config APM 698 bool "Advanced Power Management Emulation" 699 depends on PM 700endmenu 701 702source "net/Kconfig" 703 704source "drivers/Kconfig" 705 706source "fs/Kconfig" 707 708source "arch/sh/oprofile/Kconfig" 709 710source "arch/sh/Kconfig.debug" 711 712source "security/Kconfig" 713 714source "crypto/Kconfig" 715 716source "lib/Kconfig" 717