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