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 GENERIC_CLOCKEVENTS 56 def_bool n 57 58config SYS_SUPPORTS_PM 59 bool 60 61config SYS_SUPPORTS_APM_EMULATION 62 bool 63 select SYS_SUPPORTS_PM 64 65config SYS_SUPPORTS_SMP 66 bool 67 68config SYS_SUPPORTS_NUMA 69 bool 70 71config SYS_SUPPORTS_PCI 72 bool 73 74config ARCH_MAY_HAVE_PC_FDC 75 bool 76 77config STACKTRACE_SUPPORT 78 bool 79 default y 80 81config LOCKDEP_SUPPORT 82 bool 83 default y 84 85config ARCH_HAS_ILOG2_U32 86 bool 87 default n 88 89config ARCH_HAS_ILOG2_U64 90 bool 91 default n 92 93config ARCH_NO_VIRT_TO_BUS 94 def_bool y 95 96source "init/Kconfig" 97 98menu "System type" 99 100source "arch/sh/mm/Kconfig" 101 102menu "Processor features" 103 104choice 105 prompt "Endianess selection" 106 default CPU_LITTLE_ENDIAN 107 help 108 Some SuperH machines can be configured for either little or big 109 endian byte order. These modes require different kernels. 110 111config CPU_LITTLE_ENDIAN 112 bool "Little Endian" 113 114config CPU_BIG_ENDIAN 115 bool "Big Endian" 116 117endchoice 118 119config SH_FPU 120 bool "FPU support" 121 depends on CPU_SH4 122 default y 123 help 124 Selecting this option will enable support for SH processors that 125 have FPU units (ie, SH77xx). 126 127 This option must be set in order to enable the FPU. 128 129config SH_FPU_EMU 130 bool "FPU emulation support" 131 depends on !SH_FPU && EXPERIMENTAL 132 default n 133 help 134 Selecting this option will enable support for software FPU emulation. 135 Most SH-3 users will want to say Y here, whereas most SH-4 users will 136 want to say N. 137 138config SH_DSP 139 bool "DSP support" 140 depends on CPU_HAS_DSP 141 default y 142 help 143 Selecting this option will enable support for SH processors that 144 have DSP units (ie, SH2-DSP, SH3-DSP, and SH4AL-DSP). 145 146 This option must be set in order to enable the DSP. 147 148config SH_ADC 149 bool "ADC support" 150 depends on CPU_SH3 151 default y 152 help 153 Selecting this option will allow the Linux kernel to use SH3 on-chip 154 ADC module. 155 156 If unsure, say N. 157 158config SH_STORE_QUEUES 159 bool "Support for Store Queues" 160 depends on CPU_SH4 161 help 162 Selecting this option will enable an in-kernel API for manipulating 163 the store queues integrated in the SH-4 processors. 164 165config SPECULATIVE_EXECUTION 166 bool "Speculative subroutine return" 167 depends on CPU_SUBTYPE_SH7780 && EXPERIMENTAL 168 help 169 This enables support for a speculative instruction fetch for 170 subroutine return. There are various pitfalls associated with 171 this, as outlined in the SH7780 hardware manual. 172 173 If unsure, say N. 174 175config CPU_HAS_INTEVT 176 bool 177 178config CPU_HAS_MASKREG_IRQ 179 bool 180 181config CPU_HAS_INTC_IRQ 182 bool 183 184config CPU_HAS_INTC2_IRQ 185 bool 186 187config CPU_HAS_IPR_IRQ 188 bool 189 190config CPU_HAS_SR_RB 191 bool "CPU has SR.RB" 192 depends on CPU_SH3 || CPU_SH4 193 default y 194 help 195 This will enable the use of SR.RB register bank usage. Processors 196 that are lacking this bit must have another method in place for 197 accomplishing what is taken care of by the banked registers. 198 199 See <file:Documentation/sh/register-banks.txt> for further 200 information on SR.RB and register banking in the kernel in general. 201 202config CPU_HAS_PTEA 203 bool 204 205config CPU_HAS_DSP 206 bool 207 208endmenu 209 210menu "Board support" 211 212config SOLUTION_ENGINE 213 bool 214 215config SH_SOLUTION_ENGINE 216 bool "SolutionEngine" 217 select SOLUTION_ENGINE 218 select CPU_HAS_IPR_IRQ 219 depends on CPU_SUBTYPE_SH7709 || CPU_SUBTYPE_SH7750 220 help 221 Select SolutionEngine if configuring for a Hitachi SH7709 222 or SH7750 evaluation board. 223 224config SH_7206_SOLUTION_ENGINE 225 bool "SolutionEngine7206" 226 select SOLUTION_ENGINE 227 depends on CPU_SUBTYPE_SH7206 228 help 229 Select 7206 SolutionEngine if configuring for a Hitachi SH7206 230 evaluation board. 231 232config SH_7619_SOLUTION_ENGINE 233 bool "SolutionEngine7619" 234 select SOLUTION_ENGINE 235 depends on CPU_SUBTYPE_SH7619 236 help 237 Select 7619 SolutionEngine if configuring for a Hitachi SH7619 238 evaluation board. 239 240config SH_7722_SOLUTION_ENGINE 241 bool "SolutionEngine7722" 242 select SOLUTION_ENGINE 243 depends on CPU_SUBTYPE_SH7722 244 help 245 Select 7722 SolutionEngine if configuring for a Hitachi SH772 246 evaluation board. 247 248config SH_7751_SOLUTION_ENGINE 249 bool "SolutionEngine7751" 250 select SOLUTION_ENGINE 251 select CPU_HAS_IPR_IRQ 252 depends on CPU_SUBTYPE_SH7751 253 help 254 Select 7751 SolutionEngine if configuring for a Hitachi SH7751 255 evaluation board. 256 257config SH_7780_SOLUTION_ENGINE 258 bool "SolutionEngine7780" 259 select SOLUTION_ENGINE 260 select SYS_SUPPORTS_PCI 261 select CPU_HAS_INTC2_IRQ 262 depends on CPU_SUBTYPE_SH7780 263 help 264 Select 7780 SolutionEngine if configuring for a Renesas SH7780 265 evaluation board. 266 267config SH_7343_SOLUTION_ENGINE 268 bool "SolutionEngine7343" 269 select SOLUTION_ENGINE 270 depends on CPU_SUBTYPE_SH7343 271 help 272 Select 7343 SolutionEngine if configuring for a Hitachi 273 SH7343 (SH-Mobile 3AS) evaluation board. 274 275config SH_7751_SYSTEMH 276 bool "SystemH7751R" 277 depends on CPU_SUBTYPE_SH7751R 278 help 279 Select SystemH if you are configuring for a Renesas SystemH 280 7751R evaluation board. 281 282config SH_HP6XX 283 bool "HP6XX" 284 select SYS_SUPPORTS_APM_EMULATION 285 select HD6446X_SERIES 286 depends on CPU_SUBTYPE_SH7709 287 help 288 Select HP6XX if configuring for a HP jornada HP6xx. 289 More information (hardware only) at 290 <http://www.hp.com/jornada/>. 291 292config SH_DREAMCAST 293 bool "Dreamcast" 294 select SYS_SUPPORTS_PCI 295 depends on CPU_SUBTYPE_SH7091 296 help 297 Select Dreamcast if configuring for a SEGA Dreamcast. 298 More information at 299 <http://www.m17n.org/linux-sh/dreamcast/>. There is a 300 Dreamcast project is at <http://linuxdc.sourceforge.net/>. 301 302config SH_MPC1211 303 bool "Interface MPC1211" 304 depends on CPU_SUBTYPE_SH7751 && BROKEN 305 help 306 CTP/PCI-SH02 is a CPU module computer that is produced 307 by Interface Corporation. 308 More information at <http://www.interface.co.jp> 309 310config SH_SH03 311 bool "Interface CTP/PCI-SH03" 312 depends on CPU_SUBTYPE_SH7751 && BROKEN 313 select CPU_HAS_IPR_IRQ 314 select SYS_SUPPORTS_PCI 315 help 316 CTP/PCI-SH03 is a CPU module computer that is produced 317 by Interface Corporation. 318 More information at <http://www.interface.co.jp> 319 320config SH_SECUREEDGE5410 321 bool "SecureEdge5410" 322 depends on CPU_SUBTYPE_SH7751R 323 select CPU_HAS_IPR_IRQ 324 select SYS_SUPPORTS_PCI 325 help 326 Select SecureEdge5410 if configuring for a SnapGear SH board. 327 This includes both the OEM SecureEdge products as well as the 328 SME product line. 329 330config SH_HS7751RVOIP 331 bool "HS7751RVOIP" 332 depends on CPU_SUBTYPE_SH7751R 333 help 334 Select HS7751RVOIP if configuring for a Renesas Technology 335 Sales VoIP board. 336 337config SH_7710VOIPGW 338 bool "SH7710-VOIP-GW" 339 depends on CPU_SUBTYPE_SH7710 340 help 341 Select this option to build a kernel for the SH7710 based 342 VOIP GW. 343 344config SH_RTS7751R2D 345 bool "RTS7751R2D" 346 depends on CPU_SUBTYPE_SH7751R 347 select SYS_SUPPORTS_PCI 348 help 349 Select RTS7751R2D if configuring for a Renesas Technology 350 Sales SH-Graphics board. 351 352config SH_HIGHLANDER 353 bool "Highlander" 354 depends on CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 355 select SYS_SUPPORTS_PCI 356 357config SH_EDOSK7705 358 bool "EDOSK7705" 359 depends on CPU_SUBTYPE_SH7705 360 361config SH_SH4202_MICRODEV 362 bool "SH4-202 MicroDev" 363 depends on CPU_SUBTYPE_SH4_202 364 help 365 Select SH4-202 MicroDev if configuring for a SuperH MicroDev board 366 with an SH4-202 CPU. 367 368config SH_LANDISK 369 bool "LANDISK" 370 depends on CPU_SUBTYPE_SH7751R 371 select SYS_SUPPORTS_PCI 372 help 373 I-O DATA DEVICE, INC. "LANDISK Series" support. 374 375config SH_TITAN 376 bool "TITAN" 377 depends on CPU_SUBTYPE_SH7751R 378 select CPU_HAS_IPR_IRQ 379 select SYS_SUPPORTS_PCI 380 help 381 Select Titan if you are configuring for a Nimble Microsystems 382 NetEngine NP51R. 383 384config SH_SHMIN 385 bool "SHMIN" 386 depends on CPU_SUBTYPE_SH7706 387 select CPU_HAS_IPR_IRQ 388 help 389 Select SHMIN if configuring for the SHMIN board. 390 391config SH_LBOX_RE2 392 bool "L-BOX RE2" 393 depends on CPU_SUBTYPE_SH7751R 394 select SYS_SUPPORTS_PCI 395 help 396 Select L-BOX RE2 if configuring for the NTT COMWARE L-BOX RE2. 397 398endmenu 399 400source "arch/sh/boards/renesas/hs7751rvoip/Kconfig" 401source "arch/sh/boards/renesas/rts7751r2d/Kconfig" 402source "arch/sh/boards/renesas/r7780rp/Kconfig" 403 404menu "Timer and clock configuration" 405 406config SH_TMU 407 bool "TMU timer support" 408 depends on CPU_SH3 || CPU_SH4 409 select GENERIC_TIME 410 select GENERIC_CLOCKEVENTS 411 default y 412 help 413 This enables the use of the TMU as the system timer. 414 415config SH_CMT 416 bool "CMT timer support" 417 depends on CPU_SH2 418 default y 419 help 420 This enables the use of the CMT as the system timer. 421 422config SH_MTU2 423 bool "MTU2 timer support" 424 depends on CPU_SH2A 425 default n 426 help 427 This enables the use of the MTU2 as the system timer. 428 429config SH_TIMER_IRQ 430 int 431 default "28" if CPU_SUBTYPE_SH7780 || CPU_SUBTYPE_SH7785 432 default "86" if CPU_SUBTYPE_SH7619 433 default "140" if CPU_SUBTYPE_SH7206 434 default "16" 435 436config SH_PCLK_FREQ 437 int "Peripheral clock frequency (in Hz)" 438 default "27000000" if CPU_SUBTYPE_SH7343 439 default "31250000" if CPU_SUBTYPE_SH7619 440 default "32000000" if CPU_SUBTYPE_SH7722 441 default "33333333" if CPU_SUBTYPE_SH7770 || \ 442 CPU_SUBTYPE_SH7760 || CPU_SUBTYPE_SH7705 || \ 443 CPU_SUBTYPE_SH7206 444 default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R 445 default "66000000" if CPU_SUBTYPE_SH4_202 446 default "50000000" 447 help 448 This option is used to specify the peripheral clock frequency. 449 This is necessary for determining the reference clock value on 450 platforms lacking an RTC. 451 452config SH_CLK_MD 453 int "CPU Mode Pin Setting" 454 depends on CPU_SUBTYPE_SH7619 || CPU_SUBTYPE_SH7206 455 default 6 if CPU_SUBTYPE_SH7206 456 default 5 if CPU_SUBTYPE_SH7619 457 default 0 458 help 459 MD2 - MD0 pin setting. 460 461source "kernel/time/Kconfig" 462 463endmenu 464 465menu "CPU Frequency scaling" 466 467source "drivers/cpufreq/Kconfig" 468 469config SH_CPU_FREQ 470 tristate "SuperH CPU Frequency driver" 471 depends on CPU_FREQ 472 select CPU_FREQ_TABLE 473 help 474 This adds the cpufreq driver for SuperH. At present, only 475 the SH-4 is supported. 476 477 For details, take a look at <file:Documentation/cpu-freq>. 478 479 If unsure, say N. 480 481endmenu 482 483source "arch/sh/drivers/Kconfig" 484 485endmenu 486 487config ISA_DMA_API 488 bool 489 depends on SH_MPC1211 490 default y 491 492menu "Kernel features" 493 494source kernel/Kconfig.hz 495 496config KEXEC 497 bool "kexec system call (EXPERIMENTAL)" 498 depends on EXPERIMENTAL 499 help 500 kexec is a system call that implements the ability to shutdown your 501 current kernel, and to start another kernel. It is like a reboot 502 but it is independent of the system firmware. And like a reboot 503 you can start any kernel with it, not just Linux. 504 505 The name comes from the similarity to the exec system call. 506 507 It is an ongoing process to be certain the hardware in a machine 508 is properly shutdown, so do not be surprised if this code does not 509 initially work for you. It may help to enable device hotplugging 510 support. As of this writing the exact hardware interface is 511 strongly in flux, so no good recommendation can be made. 512 513config CRASH_DUMP 514 bool "kernel crash dumps (EXPERIMENTAL)" 515 depends on EXPERIMENTAL 516 help 517 Generate crash dump after being started by kexec. 518 This should be normally only set in special crash dump kernels 519 which are loaded in the main kernel with kexec-tools into 520 a specially reserved region and then later executed after 521 a crash by kdump/kexec. The crash dump kernel must be compiled 522 to a memory address not used by the main kernel using 523 MEMORY_START. 524 525 For more details see Documentation/kdump/kdump.txt 526 527config SMP 528 bool "Symmetric multi-processing support" 529 depends on SYS_SUPPORTS_SMP 530 ---help--- 531 This enables support for systems with more than one CPU. If you have 532 a system with only one CPU, like most personal computers, say N. If 533 you have a system with more than one CPU, say Y. 534 535 If you say N here, the kernel will run on single and multiprocessor 536 machines, but will use only one CPU of a multiprocessor machine. If 537 you say Y here, the kernel will run on many, but not all, 538 singleprocessor machines. On a singleprocessor machine, the kernel 539 will run faster if you say N here. 540 541 People using multiprocessor machines who say Y here should also say 542 Y to "Enhanced Real Time Clock Support", below. 543 544 See also the <file:Documentation/smp.txt>, 545 <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO available 546 at <http://www.tldp.org/docs.html#howto>. 547 548 If you don't know what to do here, say N. 549 550config NR_CPUS 551 int "Maximum number of CPUs (2-32)" 552 range 2 32 553 depends on SMP 554 default "4" if CPU_SHX3 555 default "2" 556 help 557 This allows you to specify the maximum number of CPUs which this 558 kernel will support. The maximum supported value is 32 and the 559 minimum value which makes sense is 2. 560 561 This is purely to save memory - each supported CPU adds 562 approximately eight kilobytes to the kernel image. 563 564source "kernel/Kconfig.preempt" 565 566config NODES_SHIFT 567 int 568 default "1" 569 depends on NEED_MULTIPLE_NODES 570 571endmenu 572 573menu "Boot options" 574 575config ZERO_PAGE_OFFSET 576 hex "Zero page offset" 577 default "0x00004000" if SH_MPC1211 || SH_SH03 578 default "0x00010000" if PAGE_SIZE_64KB 579 default "0x00002000" if PAGE_SIZE_8KB 580 default "0x00001000" 581 help 582 This sets the default offset of zero page. 583 584config BOOT_LINK_OFFSET 585 hex "Link address offset for booting" 586 default "0x00800000" 587 help 588 This option allows you to set the link address offset of the zImage. 589 This can be useful if you are on a board which has a small amount of 590 memory. 591 592config UBC_WAKEUP 593 bool "Wakeup UBC on startup" 594 depends on CPU_SH4 595 help 596 Selecting this option will wakeup the User Break Controller (UBC) on 597 startup. Although the UBC is left in an awake state when the processor 598 comes up, some boot loaders misbehave by putting the UBC to sleep in a 599 power saving state, which causes issues with things like ptrace(). 600 601 If unsure, say N. 602 603config CMDLINE_BOOL 604 bool "Default bootloader kernel arguments" 605 606config CMDLINE 607 string "Initial kernel command string" 608 depends on CMDLINE_BOOL 609 default "console=ttySC1,115200" 610 611endmenu 612 613menu "Bus options" 614 615# Even on SuperH devices which don't have an ISA bus, 616# this variable helps the PCMCIA modules handle 617# IRQ requesting properly -- Greg Banks. 618# 619# Though we're generally not interested in it when 620# we're not using PCMCIA, so we make it dependent on 621# PCMCIA outright. -- PFM. 622config ISA 623 def_bool y 624 depends on PCMCIA && HD6446X_SERIES 625 help 626 Find out whether you have ISA slots on your motherboard. ISA is the 627 name of a bus system, i.e. the way the CPU talks to the other stuff 628 inside your box. Other bus systems are PCI, EISA, MicroChannel 629 (MCA) or VESA. ISA is an older system, now being displaced by PCI; 630 newer boards don't support it. If you have ISA, say Y, otherwise N. 631 632config EISA 633 bool 634 ---help--- 635 The Extended Industry Standard Architecture (EISA) bus was 636 developed as an open alternative to the IBM MicroChannel bus. 637 638 The EISA bus provided some of the features of the IBM MicroChannel 639 bus while maintaining backward compatibility with cards made for 640 the older ISA bus. The EISA bus saw limited use between 1988 and 641 1995 when it was made obsolete by the PCI bus. 642 643 Say Y here if you are building a kernel for an EISA-based machine. 644 645 Otherwise, say N. 646 647config MCA 648 bool 649 help 650 MicroChannel Architecture is found in some IBM PS/2 machines and 651 laptops. It is a bus system similar to PCI or ISA. See 652 <file:Documentation/mca.txt> (and especially the web page given 653 there) before attempting to build an MCA bus kernel. 654 655config SBUS 656 bool 657 658config SUPERHYWAY 659 tristate "SuperHyway Bus support" 660 depends on CPU_SUBTYPE_SH4_202 661 662config CF_ENABLER 663 bool "Compact Flash Enabler support" 664 depends on SOLUTION_ENGINE || SH_SH03 665 ---help--- 666 Compact Flash is a small, removable mass storage device introduced 667 in 1994 originally as a PCMCIA device. If you say `Y' here, you 668 compile in support for Compact Flash devices directly connected to 669 a SuperH processor. A Compact Flash FAQ is available at 670 <http://www.compactflash.org/faqs/faq.htm>. 671 672 If your board has "Directly Connected" CompactFlash at area 5 or 6, 673 you may want to enable this option. Then, you can use CF as 674 primary IDE drive (only tested for SanDisk). 675 676 If in doubt, select 'N'. 677 678choice 679 prompt "Compact Flash Connection Area" 680 depends on CF_ENABLER 681 default CF_AREA6 682 683config CF_AREA5 684 bool "Area5" 685 help 686 If your board has "Directly Connected" CompactFlash, You should 687 select the area where your CF is connected to. 688 689 - "Area5" if CompactFlash is connected to Area 5 (0x14000000) 690 - "Area6" if it is connected to Area 6 (0x18000000) 691 692 "Area6" will work for most boards. 693 694config CF_AREA6 695 bool "Area6" 696 697endchoice 698 699config CF_BASE_ADDR 700 hex 701 depends on CF_ENABLER 702 default "0xb8000000" if CF_AREA6 703 default "0xb4000000" if CF_AREA5 704 705source "arch/sh/drivers/pci/Kconfig" 706 707source "drivers/pci/Kconfig" 708 709source "drivers/pcmcia/Kconfig" 710 711source "drivers/pci/hotplug/Kconfig" 712 713endmenu 714 715menu "Executable file formats" 716 717source "fs/Kconfig.binfmt" 718 719endmenu 720 721menu "Power management options (EXPERIMENTAL)" 722depends on EXPERIMENTAL && SYS_SUPPORTS_PM 723 724source kernel/power/Kconfig 725 726endmenu 727 728source "net/Kconfig" 729 730source "drivers/Kconfig" 731 732source "fs/Kconfig" 733 734source "arch/sh/oprofile/Kconfig" 735 736source "arch/sh/Kconfig.debug" 737 738source "security/Kconfig" 739 740source "crypto/Kconfig" 741 742source "lib/Kconfig" 743