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_BUG 26 def_bool y 27 depends on BUG 28 29config GENERIC_FIND_NEXT_BIT 30 bool 31 default y 32 33config GENERIC_HWEIGHT 34 bool 35 default y 36 37config GENERIC_HARDIRQS 38 bool 39 default y 40 41config GENERIC_IRQ_PROBE 42 bool 43 default y 44 45config GENERIC_CALIBRATE_DELAY 46 bool 47 default y 48 49config GENERIC_IOMAP 50 bool 51 52config GENERIC_TIME 53 def_bool n 54 55config SYS_SUPPORTS_APM_EMULATION 56 bool 57 58config ARCH_MAY_HAVE_PC_FDC 59 bool 60 61config STACKTRACE_SUPPORT 62 bool 63 default y 64 65config LOCKDEP_SUPPORT 66 bool 67 default y 68 69config ARCH_HAS_ILOG2_U32 70 bool 71 default n 72 73config ARCH_HAS_ILOG2_U64 74 bool 75 default n 76 77source "init/Kconfig" 78 79menu "System type" 80 81config SOLUTION_ENGINE 82 bool 83 84choice 85 prompt "SuperH system type" 86 default SH_UNKNOWN 87 88config SH_SOLUTION_ENGINE 89 bool "SolutionEngine" 90 select SOLUTION_ENGINE 91 help 92 Select SolutionEngine if configuring for a Hitachi SH7709 93 or SH7750 evaluation board. 94 95config SH_7751_SOLUTION_ENGINE 96 bool "SolutionEngine7751" 97 select SOLUTION_ENGINE 98 select CPU_SUBTYPE_SH7751 99 help 100 Select 7751 SolutionEngine if configuring for a Hitachi SH7751 101 evaluation board. 102 103config SH_7300_SOLUTION_ENGINE 104 bool "SolutionEngine7300" 105 select SOLUTION_ENGINE 106 select CPU_SUBTYPE_SH7300 107 help 108 Select 7300 SolutionEngine if configuring for a Hitachi 109 SH7300(SH-Mobile V) evaluation board. 110 111config SH_7343_SOLUTION_ENGINE 112 bool "SolutionEngine7343" 113 select SOLUTION_ENGINE 114 select CPU_SUBTYPE_SH7343 115 help 116 Select 7343 SolutionEngine if configuring for a Hitachi 117 SH7343 (SH-Mobile 3AS) evaluation board. 118 119config SH_73180_SOLUTION_ENGINE 120 bool "SolutionEngine73180" 121 select SOLUTION_ENGINE 122 select CPU_SUBTYPE_SH73180 123 help 124 Select 73180 SolutionEngine if configuring for a Hitachi 125 SH73180(SH-Mobile 3) evaluation board. 126 127config SH_7751_SYSTEMH 128 bool "SystemH7751R" 129 select CPU_SUBTYPE_SH7751R 130 help 131 Select SystemH if you are configuring for a Renesas SystemH 132 7751R evaluation board. 133 134config SH_HP6XX 135 bool "HP6XX" 136 select SYS_SUPPORTS_APM_EMULATION 137 help 138 Select HP6XX if configuring for a HP jornada HP6xx. 139 More information (hardware only) at 140 <http://www.hp.com/jornada/>. 141 142config SH_SATURN 143 bool "Saturn" 144 select CPU_SUBTYPE_SH7604 145 help 146 Select Saturn if configuring for a SEGA Saturn. 147 148config SH_DREAMCAST 149 bool "Dreamcast" 150 select CPU_SUBTYPE_SH7091 151 help 152 Select Dreamcast if configuring for a SEGA Dreamcast. 153 More information at 154 <http://www.m17n.org/linux-sh/dreamcast/>. There is a 155 Dreamcast project is at <http://linuxdc.sourceforge.net/>. 156 157config SH_MPC1211 158 bool "Interface MPC1211" 159 help 160 CTP/PCI-SH02 is a CPU module computer that is produced 161 by Interface Corporation. 162 More information at <http://www.interface.co.jp> 163 164config SH_SH03 165 bool "Interface CTP/PCI-SH03" 166 help 167 CTP/PCI-SH03 is a CPU module computer that is produced 168 by Interface Corporation. 169 More information at <http://www.interface.co.jp> 170 171config SH_SECUREEDGE5410 172 bool "SecureEdge5410" 173 select CPU_SUBTYPE_SH7751R 174 help 175 Select SecureEdge5410 if configuring for a SnapGear SH board. 176 This includes both the OEM SecureEdge products as well as the 177 SME product line. 178 179config SH_HS7751RVOIP 180 bool "HS7751RVOIP" 181 select CPU_SUBTYPE_SH7751R 182 help 183 Select HS7751RVOIP if configuring for a Renesas Technology 184 Sales VoIP board. 185 186config SH_7710VOIPGW 187 bool "SH7710-VOIP-GW" 188 select CPU_SUBTYPE_SH7710 189 help 190 Select this option to build a kernel for the SH7710 based 191 VOIP GW. 192 193config SH_RTS7751R2D 194 bool "RTS7751R2D" 195 select CPU_SUBTYPE_SH7751R 196 help 197 Select RTS7751R2D if configuring for a Renesas Technology 198 Sales SH-Graphics board. 199 200config SH_R7780RP 201 bool "R7780RP-1" 202 select CPU_SUBTYPE_SH7780 203 help 204 Select R7780RP-1 if configuring for a Renesas Solutions 205 HIGHLANDER board. 206 207config SH_EDOSK7705 208 bool "EDOSK7705" 209 select CPU_SUBTYPE_SH7705 210 211config SH_SH4202_MICRODEV 212 bool "SH4-202 MicroDev" 213 select CPU_SUBTYPE_SH4_202 214 help 215 Select SH4-202 MicroDev if configuring for a SuperH MicroDev board 216 with an SH4-202 CPU. 217 218config SH_LANDISK 219 bool "LANDISK" 220 select CPU_SUBTYPE_SH7751R 221 help 222 I-O DATA DEVICE, INC. "LANDISK Series" support. 223 224config SH_TITAN 225 bool "TITAN" 226 select CPU_SUBTYPE_SH7751R 227 help 228 Select Titan if you are configuring for a Nimble Microsystems 229 NetEngine NP51R. 230 231config SH_SHMIN 232 bool "SHMIN" 233 select CPU_SUBTYPE_SH7706 234 help 235 Select SHMIN if configuring for the SHMIN board. 236 237config SH_7206_SOLUTION_ENGINE 238 bool "SolutionEngine7206" 239 select CPU_SUBTYPE_SH7206 240 help 241 Select 7206 SolutionEngine if configuring for a Hitachi SH7206 242 evaluation board. 243 244config SH_7619_SOLUTION_ENGINE 245 bool "SolutionEngine7619" 246 select CPU_SUBTYPE_SH7619 247 help 248 Select 7619 SolutionEngine if configuring for a Hitachi SH7619 249 evaluation board. 250 251config SH_UNKNOWN 252 bool "BareCPU" 253 help 254 "Bare CPU" aka "unknown" means an SH-based system which is not one 255 of the specific ones mentioned above, which means you need to enter 256 all sorts of stuff like CONFIG_MEMORY_START because the config 257 system doesn't already know what it is. You get a machine vector 258 without any platform-specific code in it, so things like the RTC may 259 not work. 260 261 This option is for the early stages of porting to a new machine. 262 263endchoice 264 265source "arch/sh/mm/Kconfig" 266 267config CF_ENABLER 268 bool "Compact Flash Enabler support" 269 depends on SH_SOLUTION_ENGINE || SH_UNKNOWN || SH_SH03 270 ---help--- 271 Compact Flash is a small, removable mass storage device introduced 272 in 1994 originally as a PCMCIA device. If you say `Y' here, you 273 compile in support for Compact Flash devices directly connected to 274 a SuperH processor. A Compact Flash FAQ is available at 275 <http://www.compactflash.org/faqs/faq.htm>. 276 277 If your board has "Directly Connected" CompactFlash at area 5 or 6, 278 you may want to enable this option. Then, you can use CF as 279 primary IDE drive (only tested for SanDisk). 280 281 If in doubt, select 'N'. 282 283choice 284 prompt "Compact Flash Connection Area" 285 depends on CF_ENABLER 286 default CF_AREA6 287 288config CF_AREA5 289 bool "Area5" 290 help 291 If your board has "Directly Connected" CompactFlash, You should 292 select the area where your CF is connected to. 293 294 - "Area5" if CompactFlash is connected to Area 5 (0x14000000) 295 - "Area6" if it is connected to Area 6 (0x18000000) 296 297 "Area6" will work for most boards. 298 299config CF_AREA6 300 bool "Area6" 301 302endchoice 303 304config CF_BASE_ADDR 305 hex 306 depends on CF_ENABLER 307 default "0xb8000000" if CF_AREA6 308 default "0xb4000000" if CF_AREA5 309 310menu "Processor features" 311 312choice 313 prompt "Endianess selection" 314 default CPU_LITTLE_ENDIAN 315 help 316 Some SuperH machines can be configured for either little or big 317 endian byte order. These modes require different kernels. 318 319config CPU_LITTLE_ENDIAN 320 bool "Little Endian" 321 322config CPU_BIG_ENDIAN 323 bool "Big Endian" 324 325endchoice 326 327config SH_FPU 328 bool "FPU support" 329 depends on !CPU_SH3 330 default y 331 help 332 Selecting this option will enable support for SH processors that 333 have FPU units (ie, SH77xx). 334 335 This option must be set in order to enable the FPU. 336 337config SH_FPU_EMU 338 bool "FPU emulation support" 339 depends on !SH_FPU && EXPERIMENTAL 340 default n 341 help 342 Selecting this option will enable support for software FPU emulation. 343 Most SH-3 users will want to say Y here, whereas most SH-4 users will 344 want to say N. 345 346config SH_DSP 347 bool "DSP support" 348 default y if SH4AL_DSP || !CPU_SH4 349 default n 350 help 351 Selecting this option will enable support for SH processors that 352 have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP). 353 354 This option must be set in order to enable the DSP. 355 356config SH_ADC 357 bool "ADC support" 358 depends on CPU_SH3 359 default y 360 help 361 Selecting this option will allow the Linux kernel to use SH3 on-chip 362 ADC module. 363 364 If unsure, say N. 365 366config SH_STORE_QUEUES 367 bool "Support for Store Queues" 368 depends on CPU_SH4 369 help 370 Selecting this option will enable an in-kernel API for manipulating 371 the store queues integrated in the SH-4 processors. 372 373config SPECULATIVE_EXECUTION 374 bool "Speculative subroutine return" 375 depends on CPU_SUBTYPE_SH7780 && EXPERIMENTAL 376 help 377 This enables support for a speculative instruction fetch for 378 subroutine return. There are various pitfalls associated with 379 this, as outlined in the SH7780 hardware manual. 380 381 If unsure, say N. 382 383config CPU_HAS_INTEVT 384 bool 385 386config CPU_HAS_PINT_IRQ 387 bool 388 389config CPU_HAS_MASKREG_IRQ 390 bool 391 392config CPU_HAS_INTC2_IRQ 393 bool 394 395config CPU_HAS_IPR_IRQ 396 bool 397 398config CPU_HAS_SR_RB 399 bool "CPU has SR.RB" 400 depends on CPU_SH3 || CPU_SH4 401 default y 402 help 403 This will enable the use of SR.RB register bank usage. Processors 404 that are lacking this bit must have another method in place for 405 accomplishing what is taken care of by the banked registers. 406 407 See <file:Documentation/sh/register-banks.txt> for further 408 information on SR.RB and register banking in the kernel in general. 409 410config CPU_HAS_PTEA 411 bool 412 413endmenu 414 415menu "Timer support" 416depends on !GENERIC_TIME 417 418config SH_TMU 419 bool "TMU timer support" 420 depends on CPU_SH3 || CPU_SH4 421 default y 422 help 423 This enables the use of the TMU as the system timer. 424 425config SH_CMT 426 bool "CMT timer support" 427 depends on CPU_SH2 428 default y 429 help 430 This enables the use of the CMT as the system timer. 431 432config SH_MTU2 433 bool "MTU2 timer support" 434 depends on CPU_SH2A 435 default n 436 help 437 This enables the use of the MTU2 as the system timer. 438 439endmenu 440 441source "arch/sh/boards/renesas/hs7751rvoip/Kconfig" 442 443source "arch/sh/boards/renesas/rts7751r2d/Kconfig" 444 445source "arch/sh/boards/renesas/r7780rp/Kconfig" 446 447config SH_TIMER_IRQ 448 int 449 default "28" if CPU_SUBTYPE_SH7780 450 default "86" if CPU_SUBTYPE_SH7619 451 default "140" if CPU_SUBTYPE_SH7206 452 default "16" 453 454config NO_IDLE_HZ 455 bool "Dynamic tick timer" 456 help 457 Select this option if you want to disable continuous timer ticks 458 and have them programmed to occur as required. This option saves 459 power as the system can remain in idle state for longer. 460 461 By default dynamic tick is disabled during the boot, and can be 462 manually enabled with: 463 464 echo 1 > /sys/devices/system/timer/timer0/dyn_tick 465 466 Alternatively, if you want dynamic tick automatically enabled 467 during boot, pass "dyntick=enable" via the kernel command string. 468 469 Please note that dynamic tick may affect the accuracy of 470 timekeeping on some platforms depending on the implementation. 471 472config SH_PCLK_FREQ 473 int "Peripheral clock frequency (in Hz)" 474 default "27000000" if CPU_SUBTYPE_SH73180 || CPU_SUBTYPE_SH7343 475 default "31250000" if CPU_SUBTYPE_SH7619 476 default "33333333" if CPU_SUBTYPE_SH7300 || CPU_SUBTYPE_SH7770 || \ 477 CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \ 478 CPU_SUBTYPE_SH7206 479 default "50000000" if CPU_SUBTYPE_SH7750 || CPU_SUBTYPE_SH7780 480 default "60000000" if CPU_SUBTYPE_SH7751 481 default "66000000" if CPU_SUBTYPE_SH4_202 482 help 483 This option is used to specify the peripheral clock frequency. 484 This is necessary for determining the reference clock value on 485 platforms lacking an RTC. 486 487config SH_CLK_MD 488 int "CPU Mode Pin Setting" 489 default 0 490 depends on CPU_SUBTYPE_SH7619 || CPU_SUBTYPE_SH7206 491 help 492 MD2 - MD0 pin setting. 493 494menu "CPU Frequency scaling" 495 496source "drivers/cpufreq/Kconfig" 497 498config SH_CPU_FREQ 499 tristate "SuperH CPU Frequency driver" 500 depends on CPU_FREQ 501 select CPU_FREQ_TABLE 502 help 503 This adds the cpufreq driver for SuperH. At present, only 504 the SH-4 is supported. 505 506 For details, take a look at <file:Documentation/cpu-freq>. 507 508 If unsure, say N. 509 510endmenu 511 512source "arch/sh/drivers/dma/Kconfig" 513 514source "arch/sh/cchips/Kconfig" 515 516config HEARTBEAT 517 bool "Heartbeat LED" 518 depends on SH_MPC1211 || SH_SH03 || \ 519 SOLUTION_ENGINE || \ 520 SH_RTS7751R2D || SH_SH4202_MICRODEV || SH_LANDISK || \ 521 SH_R7780RP 522 help 523 Use the power-on LED on your machine as a load meter. The exact 524 behavior is platform-dependent, but normally the flash frequency is 525 a hyperbolic function of the 5-minute load average. 526 527source "arch/sh/drivers/Kconfig" 528 529endmenu 530 531config ISA_DMA_API 532 bool 533 depends on SH_MPC1211 534 default y 535 536menu "Kernel features" 537 538source kernel/Kconfig.hz 539 540config KEXEC 541 bool "kexec system call (EXPERIMENTAL)" 542 depends on EXPERIMENTAL 543 help 544 kexec is a system call that implements the ability to shutdown your 545 current kernel, and to start another kernel. It is like a reboot 546 but it is independent of the system firmware. And like a reboot 547 you can start any kernel with it, not just Linux. 548 549 The name comes from the similarity to the exec system call. 550 551 It is an ongoing process to be certain the hardware in a machine 552 is properly shutdown, so do not be surprised if this code does not 553 initially work for you. It may help to enable device hotplugging 554 support. As of this writing the exact hardware interface is 555 strongly in flux, so no good recommendation can be made. 556 557config SMP 558 bool "Symmetric multi-processing support" 559 ---help--- 560 This enables support for systems with more than one CPU. If you have 561 a system with only one CPU, like most personal computers, say N. If 562 you have a system with more than one CPU, say Y. 563 564 If you say N here, the kernel will run on single and multiprocessor 565 machines, but will use only one CPU of a multiprocessor machine. If 566 you say Y here, the kernel will run on many, but not all, 567 singleprocessor machines. On a singleprocessor machine, the kernel 568 will run faster if you say N here. 569 570 People using multiprocessor machines who say Y here should also say 571 Y to "Enhanced Real Time Clock Support", below. 572 573 See also the <file:Documentation/smp.txt>, 574 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available 575 at <http://www.tldp.org/docs.html#howto>. 576 577 If you don't know what to do here, say N. 578 579config NR_CPUS 580 int "Maximum number of CPUs (2-32)" 581 range 2 32 582 depends on SMP 583 default "2" 584 help 585 This allows you to specify the maximum number of CPUs which this 586 kernel will support. The maximum supported value is 32 and the 587 minimum value which makes sense is 2. 588 589 This is purely to save memory - each supported CPU adds 590 approximately eight kilobytes to the kernel image. 591 592source "kernel/Kconfig.preempt" 593 594config NODES_SHIFT 595 int 596 default "1" 597 depends on NEED_MULTIPLE_NODES 598 599endmenu 600 601menu "Boot options" 602 603config ZERO_PAGE_OFFSET 604 hex "Zero page offset" 605 default "0x00004000" if SH_MPC1211 || SH_SH03 606 default "0x00010000" if PAGE_SIZE_64KB 607 default "0x00002000" if PAGE_SIZE_8KB 608 default "0x00001000" 609 help 610 This sets the default offset of zero page. 611 612config BOOT_LINK_OFFSET 613 hex "Link address offset for booting" 614 default "0x00800000" 615 help 616 This option allows you to set the link address offset of the zImage. 617 This can be useful if you are on a board which has a small amount of 618 memory. 619 620config UBC_WAKEUP 621 bool "Wakeup UBC on startup" 622 help 623 Selecting this option will wakeup the User Break Controller (UBC) on 624 startup. Although the UBC is left in an awake state when the processor 625 comes up, some boot loaders misbehave by putting the UBC to sleep in a 626 power saving state, which causes issues with things like ptrace(). 627 628 If unsure, say N. 629 630config CMDLINE_BOOL 631 bool "Default bootloader kernel arguments" 632 633config CMDLINE 634 string "Initial kernel command string" 635 depends on CMDLINE_BOOL 636 default "console=ttySC1,115200" 637 638endmenu 639 640menu "Bus options" 641 642# Even on SuperH devices which don't have an ISA bus, 643# this variable helps the PCMCIA modules handle 644# IRQ requesting properly -- Greg Banks. 645# 646# Though we're generally not interested in it when 647# we're not using PCMCIA, so we make it dependent on 648# PCMCIA outright. -- PFM. 649config ISA 650 bool 651 default y if PCMCIA 652 help 653 Find out whether you have ISA slots on your motherboard. ISA is the 654 name of a bus system, i.e. the way the CPU talks to the other stuff 655 inside your box. Other bus systems are PCI, EISA, MicroChannel 656 (MCA) or VESA. ISA is an older system, now being displaced by PCI; 657 newer boards don't support it. If you have ISA, say Y, otherwise N. 658 659config EISA 660 bool 661 ---help--- 662 The Extended Industry Standard Architecture (EISA) bus was 663 developed as an open alternative to the IBM MicroChannel bus. 664 665 The EISA bus provided some of the features of the IBM MicroChannel 666 bus while maintaining backward compatibility with cards made for 667 the older ISA bus. The EISA bus saw limited use between 1988 and 668 1995 when it was made obsolete by the PCI bus. 669 670 Say Y here if you are building a kernel for an EISA-based machine. 671 672 Otherwise, say N. 673 674config MCA 675 bool 676 help 677 MicroChannel Architecture is found in some IBM PS/2 machines and 678 laptops. It is a bus system similar to PCI or ISA. See 679 <file:Documentation/mca.txt> (and especially the web page given 680 there) before attempting to build an MCA bus kernel. 681 682config SBUS 683 bool 684 685config SUPERHYWAY 686 tristate "SuperHyway Bus support" 687 depends on CPU_SUBTYPE_SH4_202 688 689source "arch/sh/drivers/pci/Kconfig" 690 691source "drivers/pci/Kconfig" 692 693source "drivers/pcmcia/Kconfig" 694 695source "drivers/pci/hotplug/Kconfig" 696 697endmenu 698 699menu "Executable file formats" 700 701source "fs/Kconfig.binfmt" 702 703endmenu 704 705menu "Power management options (EXPERIMENTAL)" 706depends on EXPERIMENTAL 707 708source kernel/power/Kconfig 709 710endmenu 711 712source "net/Kconfig" 713 714source "drivers/Kconfig" 715 716source "fs/Kconfig" 717 718source "arch/sh/oprofile/Kconfig" 719 720source "arch/sh/Kconfig.debug" 721 722source "security/Kconfig" 723 724source "crypto/Kconfig" 725 726source "lib/Kconfig" 727