arch/mips/Kconfig

   1 config MIPS
   2         bool
   3         default y
   4         # Horrible source of confusion.  Die, die, die ...
   5         select EMBEDDED
   6
   7 config MIPS64
   8         bool "64-bit kernel"
   9         help
  10           Select this option if you want to build a 64-bit kernel.  You should
  11           only select this option if you have hardware that actually has a
  12           64-bit processor and if your application will actually benefit from
  13           64-bit processing, otherwise say N.  You must say Y for kernels for
  14           SGI IP27 (Origin 200 and 2000) and SGI IP32 (O2).  If in doubt say N.
  15
  16 config 64BIT
  17         def_bool MIPS64
  18
  19 config MIPS32
  20         bool
  21         depends on MIPS64 = 'n'
  22         default y
  23
  24 mainmenu "Linux/MIPS Kernel Configuration"
  25
  26 source "init/Kconfig"
  27
  28 menu "Machine selection"
  29
  30 config MACH_JAZZ
  31         bool "Support for the Jazz family of machines"
  32         select ARC
  33         select ARC32
  34         select GENERIC_ISA_DMA
  35         select I8259
  36         select ISA
  37         help
  38          This a family of machines based on the MIPS R4030 chipset which was
  39          used by several vendors to build RISC/os and Windows NT workstations.
  40          Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and
  41          Olivetti M700-10 workstations.
  42
  43 config ACER_PICA_61
  44         bool "Support for Acer PICA 1 chipset (EXPERIMENTAL)"
  45         depends on MACH_JAZZ && EXPERIMENTAL
  46         select DMA_NONCOHERENT
  47         help
  48           This is a machine with a R4400 133/150 MHz CPU. To compile a Linux
  49           kernel that runs on these, say Y here. For details about Linux on
  50           the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at
  51           <http://www.linux-mips.org/>.
  52
  53 config MIPS_MAGNUM_4000
  54         bool "Support for MIPS Magnum 4000"
  55         depends on MACH_JAZZ
  56         select DMA_NONCOHERENT
  57         help
  58           This is a machine with a R4000 100 MHz CPU. To compile a Linux
  59           kernel that runs on these, say Y here. For details about Linux on
  60           the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at
  61           <http://www.linux-mips.org/>.
  62
  63 config OLIVETTI_M700
  64         bool "Support for Olivetti M700-10"
  65         depends on MACH_JAZZ
  66         select DMA_NONCOHERENT
  67         help
  68           This is a machine with a R4000 100 MHz CPU. To compile a Linux
  69           kernel that runs on these, say Y here. For details about Linux on
  70           the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at
  71           <http://www.linux-mips.org/>.
  72
  73 config MACH_VR41XX
  74         bool "Support for NEC VR41XX-based machines"
  75
  76 config NEC_CMBVR4133
  77         bool "Support for NEC CMB-VR4133"
  78         depends on MACH_VR41XX
  79         select CPU_VR41XX
  80         select DMA_NONCOHERENT
  81         select IRQ_CPU
  82         select HW_HAS_PCI
  83
  84 config ROCKHOPPER
  85         bool "Support for Rockhopper baseboard"
  86         depends on NEC_CMBVR4133
  87         select I8259
  88         select HAVE_STD_PC_SERIAL_PORT
  89
  90 config CASIO_E55
  91         bool "Support for CASIO CASSIOPEIA E-10/15/55/65"
  92         depends on MACH_VR41XX
  93         select CPU_LITTLE_ENDIAN
  94         select DMA_NONCOHERENT
  95         select IRQ_CPU
  96         select ISA
  97
  98 config IBM_WORKPAD
  99         bool "Support for IBM WorkPad z50"
 100         depends on MACH_VR41XX
 101         select CPU_LITTLE_ENDIAN
 102         select DMA_NONCOHERENT
 103         select IRQ_CPU
 104         select ISA
 105
 106 config TANBAC_TB022X
 107         bool "Support for TANBAC VR4131 multichip module and TANBAC VR4131DIMM"
 108         depends on MACH_VR41XX
 109         select CPU_LITTLE_ENDIAN
 110         select DMA_NONCOHERENT
 111         select IRQ_CPU
 112         select HW_HAS_PCI
 113         help
 114           The TANBAC VR4131 multichip module(TB0225) and
 115           the TANBAC VR4131DIMM(TB0229) are MIPS-based platforms
 116           manufactured by TANBAC.
 117           Please refer to <http://www.tanbac.co.jp/>
 118           about VR4131 multichip module and VR4131DIMM.
 119
 120 config TANBAC_TB0226
 121         bool "Support for TANBAC Mbase(TB0226)"
 122         depends on TANBAC_TB022X
 123         select GPIO_VR41XX
 124         help
 125           The TANBAC Mbase(TB0226) is a MIPS-based platform manufactured by TANBAC.
 126           Please refer to <http://www.tanbac.co.jp/> about Mbase.
 127
 128 config VICTOR_MPC30X
 129         bool "Support for Victor MP-C303/304"
 130         depends on MACH_VR41XX
 131         select CPU_LITTLE_ENDIAN
 132         select DMA_NONCOHERENT
 133         select IRQ_CPU
 134         select HW_HAS_PCI
 135
 136 config ZAO_CAPCELLA
 137         bool "Support for ZAO Networks Capcella"
 138         depends on MACH_VR41XX
 139         select CPU_LITTLE_ENDIAN
 140         select DMA_NONCOHERENT
 141         select IRQ_CPU
 142         select HW_HAS_PCI
 143
 144 config PCI_VR41XX
 145         bool "Add PCI control unit support of NEC VR4100 series"
 146         depends on MACH_VR41XX && HW_HAS_PCI
 147         default y
 148         select PCI
 149
 150 config VRC4171
 151         tristate "Add NEC VRC4171 companion chip support"
 152         depends on MACH_VR41XX && ISA
 153         ---help---
 154           The NEC VRC4171/4171A is a companion chip for NEC VR4111/VR4121.
 155
 156 config VRC4173
 157         tristate "Add NEC VRC4173 companion chip support"
 158         depends on MACH_VR41XX && PCI_VR41XX
 159         ---help---
 160           The NEC VRC4173 is a companion chip for NEC VR4122/VR4131.
 161
 162 config TOSHIBA_JMR3927
 163         bool "Support for Toshiba JMR-TX3927 board"
 164         depends on MIPS32
 165         select DMA_NONCOHERENT
 166         select HW_HAS_PCI
 167         select SWAP_IO_SPACE
 168
 169 config MIPS_COBALT
 170         bool "Support for Cobalt Server (EXPERIMENTAL)"
 171         depends on EXPERIMENTAL
 172         select DMA_NONCOHERENT
 173         select HW_HAS_PCI
 174         select I8259
 175         select IRQ_CPU
 176
 177 config MACH_DECSTATION
 178         bool "Support for DECstations"
 179         select BOOT_ELF32
 180         select DMA_NONCOHERENT
 181         select IRQ_CPU
 182         depends on MIPS32 || EXPERIMENTAL
 183         ---help---
 184           This enables support for DEC's MIPS based workstations.  For details
 185           see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
 186           DECstation porting pages on <http://decstation.unix-ag.org/>.
 187
 188           If you have one of the following DECstation Models you definitely
 189           want to choose R4xx0 for the CPU Type:
 190
 191                 DECstation 5000/50
 192                 DECstation 5000/150
 193                 DECstation 5000/260
 194                 DECsystem 5900/260
 195
 196           otherwise choose R3000.
 197
 198 config MIPS_EV64120
 199         bool "Support for Galileo EV64120 Evaluation board (EXPERIMENTAL)"
 200         depends on EXPERIMENTAL
 201         select DMA_NONCOHERENT
 202         select HW_HAS_PCI
 203         select MIPS_GT64120
 204         help
 205           This is an evaluation board based on the Galileo GT-64120
 206           single-chip system controller that contains a MIPS R5000 compatible
 207           core running at 75/100MHz.  Their website is located at
 208           <http://www.marvell.com/>.  Say Y here if you wish to build a
 209           kernel for this platform.
 210
 211 config EVB_PCI1
 212         bool "Enable Second PCI (PCI1)"
 213         depends on MIPS_EV64120
 214
 215 config MIPS_EV96100
 216         bool "Support for Galileo EV96100 Evaluation board (EXPERIMENTAL)"
 217         depends on EXPERIMENTAL
 218         select DMA_NONCOHERENT
 219         select HW_HAS_PCI
 220         select IRQ_CPU
 221         select MIPS_GT96100
 222         select RM7000_CPU_SCACHE
 223         select SWAP_IO_SPACE
 224         help
 225           This is an evaluation board based on the Galileo GT-96100 LAN/WAN
 226           communications controllers containing a MIPS R5000 compatible core
 227           running at 83MHz. Their website is <http://www.marvell.com/>. Say Y
 228           here if you wish to build a kernel for this platform.
 229
 230 config MIPS_IVR
 231         bool "Support for Globespan IVR board"
 232         select DMA_NONCOHERENT
 233         select HW_HAS_PCI
 234         help
 235           This is an evaluation board built by Globespan to showcase thir
 236           iVR (Internet Video Recorder) design. It utilizes a QED RM5231
 237           R5000 MIPS core. More information can be found out their website
 238           located at <http://www.globespan.net/>. Say Y here if you wish to
 239           build a kernel for this platform.
 240
 241 config LASAT
 242         bool "Support for LASAT Networks platforms"
 243         select DMA_NONCOHERENT
 244         select HW_HAS_PCI
 245         select MIPS_GT64120
 246         select R5000_CPU_SCACHE
 247
 248 config PICVUE
 249         tristate "PICVUE LCD display driver"
 250         depends on LASAT
 251
 252 config PICVUE_PROC
 253         tristate "PICVUE LCD display driver /proc interface"
 254         depends on PICVUE
 255
 256 config DS1603
 257         bool "DS1603 RTC driver"
 258         depends on LASAT
 259
 260 config LASAT_SYSCTL
 261         bool "LASAT sysctl interface"
 262         depends on LASAT
 263
 264 config MIPS_ITE8172
 265         bool "Support for ITE 8172G board"
 266         select DMA_NONCOHERENT
 267         select HW_HAS_PCI
 268         help
 269           Ths is an evaluation board made by ITE <http://www.ite.com.tw/>
 270           with ATX form factor that utilizes a MIPS R5000 to work with its
 271           ITE8172G companion internet appliance chip. The MIPS core can be
 272           either a NEC Vr5432 or QED RM5231. Say Y here if you wish to build
 273           a kernel for this platform.
 274
 275 config IT8172_REVC
 276         bool "Support for older IT8172 (Rev C)"
 277         depends on MIPS_ITE8172
 278         help
 279           Say Y here to support the older, Revision C version of the Integrated
 280           Technology Express, Inc. ITE8172 SBC.  Vendor page at
 281           <http://www.ite.com.tw/ia/brief_it8172bsp.htm>; picture of the
 282           board at <http://www.mvista.com/partners/semiconductor/ite.html>.
 283
 284 config MIPS_ATLAS
 285         bool "Support for MIPS Atlas board"
 286         select BOOT_ELF32
 287         select DMA_NONCOHERENT
 288         select HW_HAS_PCI
 289         select MIPS_GT64120
 290         select SWAP_IO_SPACE
 291         help
 292           This enables support for the QED R5231-based MIPS Atlas evaluation
 293           board.
 294
 295 config MIPS_MALTA
 296         bool "Support for MIPS Malta board"
 297         select BOOT_ELF32
 298         select HAVE_STD_PC_SERIAL_PORT
 299         select DMA_NONCOHERENT
 300         select GENERIC_ISA_DMA
 301         select HW_HAS_PCI
 302         select I8259
 303         select MIPS_GT64120
 304         select SWAP_IO_SPACE
 305         help
 306           This enables support for the VR5000-based MIPS Malta evaluation
 307           board.
 308
 309 config MIPS_SEAD
 310         bool "Support for MIPS SEAD board (EXPERIMENTAL)"
 311         depends on EXPERIMENTAL
 312         select IRQ_CPU
 313         select DMA_NONCOHERENT
 314
 315 config MOMENCO_OCELOT
 316         bool "Support for Momentum Ocelot board"
 317         select DMA_NONCOHERENT
 318         select HW_HAS_PCI
 319         select IRQ_CPU
 320         select IRQ_CPU_RM7K
 321         select MIPS_GT64120
 322         select RM7000_CPU_SCACHE
 323         select SWAP_IO_SPACE
 324         help
 325           The Ocelot is a MIPS-based Single Board Computer (SBC) made by
 326           Momentum Computer <http://www.momenco.com/>.
 327
 328 config MOMENCO_OCELOT_G
 329         bool "Support for Momentum Ocelot-G board"
 330         select DMA_NONCOHERENT
 331         select HW_HAS_PCI
 332         select IRQ_CPU
 333         select IRQ_CPU_RM7K
 334         select PCI_MARVELL
 335         select RM7000_CPU_SCACHE
 336         select SWAP_IO_SPACE
 337         help
 338           The Ocelot is a MIPS-based Single Board Computer (SBC) made by
 339           Momentum Computer <http://www.momenco.com/>.
 340
 341 config MOMENCO_OCELOT_C
 342         bool "Support for Momentum Ocelot-C board"
 343         select DMA_NONCOHERENT
 344         select HW_HAS_PCI
 345         select IRQ_CPU
 346         select IRQ_MV64340
 347         select PCI_MARVELL
 348         select RM7000_CPU_SCACHE
 349         select SWAP_IO_SPACE
 350         help
 351           The Ocelot is a MIPS-based Single Board Computer (SBC) made by
 352           Momentum Computer <http://www.momenco.com/>.
 353
 354 config MOMENCO_OCELOT_3
 355         bool "Support for Momentum Ocelot-3 board"
 356         select BOOT_ELF32
 357         select DMA_NONCOHERENT
 358         select HW_HAS_PCI
 359         select IRQ_CPU
 360         select IRQ_CPU_RM7K
 361         select IRQ_MV64340
 362         select PCI_MARVELL
 363         select RM7000_CPU_SCACHE
 364         select SWAP_IO_SPACE
 365         help
 366           The Ocelot-3 is based off Discovery III System Controller and
 367           PMC-Sierra Rm79000 core.
 368
 369 config MOMENCO_JAGUAR_ATX
 370         bool "Support for Momentum Jaguar board"
 371         select BOOT_ELF32
 372         select DMA_NONCOHERENT
 373         select HW_HAS_PCI
 374         select IRQ_CPU
 375         select IRQ_CPU_RM7K
 376         select IRQ_MV64340
 377         select LIMITED_DMA
 378         select PCI_MARVELL
 379         select RM7000_CPU_SCACHE
 380         select SWAP_IO_SPACE
 381         help
 382           The Jaguar ATX is a MIPS-based Single Board Computer (SBC) made by
 383           Momentum Computer <http://www.momenco.com/>.
 384
 385 config JAGUAR_DMALOW
 386         bool "Low DMA Mode"
 387         depends on MOMENCO_JAGUAR_ATX
 388         help
 389           Select to Y if jump JP5 is set on your board, N otherwise.  Normally
 390           the jumper is set, so if you feel unsafe, just say Y.
 391
 392 config PMC_YOSEMITE
 393         bool "Support for PMC-Sierra Yosemite eval board"
 394         select DMA_COHERENT
 395         select HW_HAS_PCI
 396         select IRQ_CPU
 397         select IRQ_CPU_RM7K
 398         select IRQ_CPU_RM9K
 399         select SWAP_IO_SPACE
 400         help
 401           Yosemite is an evaluation board for the RM9000x2 processor
 402           manufactured by PMC-Sierra
 403
 404 config HYPERTRANSPORT
 405         bool "Hypertransport Support for PMC-Sierra Yosemite"
 406         depends on PMC_YOSEMITE
 407
 408 config DDB5074
 409         bool "Support for NEC DDB Vrc-5074 (EXPERIMENTAL)"
 410         depends on EXPERIMENTAL
 411         select DMA_NONCOHERENT
 412         select HAVE_STD_PC_SERIAL_PORT
 413         select HW_HAS_PCI
 414         select IRQ_CPU
 415         select I8259
 416         select ISA
 417         help
 418           This enables support for the VR5000-based NEC DDB Vrc-5074
 419           evaluation board.
 420
 421 config DDB5476
 422         bool "Support for NEC DDB Vrc-5476"
 423         select DMA_NONCOHERENT
 424         select HAVE_STD_PC_SERIAL_PORT
 425         select HW_HAS_PCI
 426         select IRQ_CPU
 427         select I8259
 428         select ISA
 429         help
 430           This enables support for the R5432-based NEC DDB Vrc-5476
 431           evaluation board.
 432
 433           Features : kernel debugging, serial terminal, NFS root fs, on-board
 434           ether port USB, AC97, PCI, PCI VGA card & framebuffer console,
 435           IDE controller, PS2 keyboard, PS2 mouse, etc.
 436
 437 config DDB5477
 438         bool "Support for NEC DDB Vrc-5477"
 439         select DMA_NONCOHERENT
 440         select HW_HAS_PCI
 441         select I8259
 442         select IRQ_CPU
 443         help
 444           This enables support for the R5432-based NEC DDB Vrc-5477,
 445           or Rockhopper/SolutionGear boards with R5432/R5500 CPUs.
 446
 447           Features : kernel debugging, serial terminal, NFS root fs, on-board
 448           ether port USB, AC97, PCI, etc.
 449
 450 config DDB5477_BUS_FREQUENCY
 451         int "bus frequency (in kHZ, 0 for auto-detect)"
 452         depends on DDB5477
 453         default 0
 454
 455 config QEMU
 456         bool "Support for Qemu"
 457         select DMA_COHERENT
 458         select GENERIC_ISA_DMA
 459         select HAVE_STD_PC_SERIAL_PORT
 460         select I8259
 461         select ISA
 462         select SWAP_IO_SPACE
 463         select SYS_SUPPORTS_32BIT_KERNEL
 464         select SYS_SUPPORTS_BIG_ENDIAN
 465         help
 466          Qemu is a software emulator which among other architectures also
 467          can simulate a MIPS32 4Kc system.  This patch adds support for the
 468          system architecture that currently is being simulated by Qemu.  It
 469          will eventually be removed again when Qemu has the capability to
 470          simulate actual MIPS hardware platforms.  More information on Qemu
 471          can be found at http://www.linux-mips.org/wiki/Qemu.
 472
 473 config SGI_IP22
 474         bool "Support for SGI IP22 (Indy/Indigo2)"
 475         select ARC
 476         select ARC32
 477         select BOOT_ELF32
 478         select DMA_NONCOHERENT
 479         select IP22_CPU_SCACHE
 480         select IRQ_CPU
 481         select SWAP_IO_SPACE
 482         help
 483           This are the SGI Indy, Challenge S and Indigo2, as well as certain
 484           OEM variants like the Tandem CMN B006S. To compile a Linux kernel
 485           that runs on these, say Y here.
 486
 487 config SGI_IP27
 488         bool "Support for SGI IP27 (Origin200/2000)"
 489         depends on MIPS64
 490         select ARC
 491         select ARC64
 492         select DMA_IP27
 493         select HW_HAS_PCI
 494         select PCI_DOMAINS
 495         help
 496           This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
 497           workstations.  To compile a Linux kernel that runs on these, say Y
 498           here.
 499
 500 #config SGI_SN0_XXL
 501 #       bool "IP27 XXL"
 502 #       depends on SGI_IP27
 503 #         This options adds support for userspace processes upto 16TB size.
 504 #         Normally the limit is just .5TB.
 505
 506 config SGI_SN0_N_MODE
 507         bool "IP27 N-Mode"
 508         depends on SGI_IP27
 509         help
 510           The nodes of Origin 200, Origin 2000 and Onyx 2 systems can be
 511           configured in either N-Modes which allows for more nodes or M-Mode
 512           which allows for more memory.  Your system is most probably
 513           running in M-Mode, so you should say N here.
 514
 515 config ARCH_DISCONTIGMEM_ENABLE
 516         bool
 517         default y if SGI_IP27
 518         help
 519           Say Y to upport efficient handling of discontiguous physical memory,
 520           for architectures which are either NUMA (Non-Uniform Memory Access)
 521           or have huge holes in the physical address space for other reasons.
 522           See <file:Documentation/vm/numa> for more.
 523
 524 config NUMA
 525         bool "NUMA Support"
 526         depends on SGI_IP27
 527         help
 528           Say Y to compile the kernel to support NUMA (Non-Uniform Memory
 529           Access).  This option is for configuring high-end multiprocessor
 530           server machines.  If in doubt, say N.
 531
 532 config MAPPED_KERNEL
 533         bool "Mapped kernel support"
 534         depends on SGI_IP27
 535         help
 536           Change the way a Linux kernel is loaded into memory on a MIPS64
 537           machine.  This is required in order to support text replication and
 538           NUMA.  If you need to understand it, read the source code.
 539
 540 config REPLICATE_KTEXT
 541         bool "Kernel text replication support"
 542         depends on SGI_IP27
 543         help
 544           Say Y here to enable replicating the kernel text across multiple
 545           nodes in a NUMA cluster.  This trades memory for speed.
 546
 547 config REPLICATE_EXHANDLERS
 548         bool "Exception handler replication support"
 549         depends on SGI_IP27
 550         help
 551           Say Y here to enable replicating the kernel exception handlers
 552           across multiple nodes in a NUMA cluster. This trades memory for
 553           speed.
 554
 555 config SGI_IP32
 556         bool "Support for SGI IP32 (O2) (EXPERIMENTAL)"
 557         depends on MIPS64 && EXPERIMENTAL
 558         select ARC
 559         select ARC32
 560         select BOOT_ELF32
 561         select OWN_DMA
 562         select DMA_IP32
 563         select DMA_NONCOHERENT
 564         select HW_HAS_PCI
 565         select R5000_CPU_SCACHE
 566         select RM7000_CPU_SCACHE
 567         help
 568           If you want this kernel to run on SGI O2 workstation, say Y here.
 569
 570 config SOC_AU1X00
 571         depends on MIPS32
 572         bool "Support for AMD/Alchemy Au1X00 SOCs"
 573
 574 choice
 575         prompt "Au1X00 SOC Type"
 576         depends on SOC_AU1X00
 577         help
 578           Say Y here to enable support for one of three AMD/Alchemy
 579           SOCs. For additional documentation see www.amd.com.
 580
 581 config SOC_AU1000
 582         bool "SOC_AU1000"
 583 config SOC_AU1100
 584         bool "SOC_AU1100"
 585 config SOC_AU1500
 586         bool "SOC_AU1500"
 587 config SOC_AU1550
 588         bool "SOC_AU1550"
 589
 590 endchoice
 591
 592 choice
 593         prompt "AMD/Alchemy Au1x00 board support"
 594         depends on SOC_AU1X00
 595         help
 596           These are evaluation boards built by AMD/Alchemy to
 597           showcase their Au1X00 Internet Edge Processors. The SOC design
 598           is based on the MIPS32 architecture running at 266/400/500MHz
 599           with many integrated peripherals. Further information can be
 600           found at their website, <http://www.amd.com/>. Say Y here if you
 601           wish to build a kernel for this platform.
 602
 603 config MIPS_PB1000
 604         bool "PB1000 board"
 605         depends on SOC_AU1000
 606         select DMA_NONCOHERENT
 607         select HW_HAS_PCI
 608         select SWAP_IO_SPACE
 609
 610 config MIPS_PB1100
 611         bool "PB1100 board"
 612         depends on SOC_AU1100
 613         select DMA_NONCOHERENT
 614         select HW_HAS_PCI
 615         select SWAP_IO_SPACE
 616
 617 config MIPS_PB1500
 618         bool "PB1500 board"
 619         depends on SOC_AU1500
 620         select DMA_COHERENT
 621         select HW_HAS_PCI
 622
 623 config MIPS_PB1550
 624         bool "PB1550 board"
 625         depends on SOC_AU1550
 626         select DMA_COHERENT
 627         select HW_HAS_PCI
 628         select MIPS_DISABLE_OBSOLETE_IDE
 629
 630 config MIPS_DB1000
 631         bool "DB1000 board"
 632         depends on SOC_AU1000
 633         select DMA_NONCOHERENT
 634         select HW_HAS_PCI
 635
 636 config MIPS_DB1100
 637         bool "DB1100 board"
 638         depends on SOC_AU1100
 639         select DMA_NONCOHERENT
 640
 641 config MIPS_DB1500
 642         bool "DB1500 board"
 643         depends on SOC_AU1500
 644         select DMA_COHERENT
 645         select HW_HAS_PCI
 646         select MIPS_DISABLE_OBSOLETE_IDE
 647
 648 config MIPS_DB1550
 649         bool "DB1550 board"
 650         depends on SOC_AU1550
 651         select HW_HAS_PCI
 652         select DMA_COHERENT
 653         select MIPS_DISABLE_OBSOLETE_IDE
 654
 655 config MIPS_BOSPORUS
 656         bool "Bosporus board"
 657         depends on SOC_AU1500
 658         select DMA_NONCOHERENT
 659
 660 config MIPS_MIRAGE
 661         bool "Mirage board"
 662         depends on SOC_AU1500
 663         select DMA_NONCOHERENT
 664
 665 config MIPS_XXS1500
 666         bool "MyCable XXS1500 board"
 667         depends on SOC_AU1500
 668         select DMA_NONCOHERENT
 669
 670 config MIPS_MTX1
 671         bool "4G Systems MTX-1 board"
 672         depends on SOC_AU1500
 673         select HW_HAS_PCI
 674         select DMA_NONCOHERENT
 675
 676 endchoice
 677
 678 config SIBYTE_SB1xxx_SOC
 679         bool "Support for Broadcom BCM1xxx SOCs (EXPERIMENTAL)"
 680         depends on EXPERIMENTAL
 681         select BOOT_ELF32
 682         select DMA_COHERENT
 683         select SWAP_IO_SPACE
 684
 685 choice
 686         prompt "BCM1xxx SOC-based board"
 687         depends on SIBYTE_SB1xxx_SOC
 688         default SIBYTE_SWARM
 689         help
 690           Enable support for boards based on the SiByte line of SOCs
 691           from Broadcom.  There are configurations for the known
 692           evaluation boards, or you can choose "Other" and add your
 693           own board support code.
 694
 695 config SIBYTE_SWARM
 696         bool "BCM91250A-SWARM"
 697         select SIBYTE_SB1250
 698
 699 config SIBYTE_SENTOSA
 700         bool "BCM91250E-Sentosa"
 701         select SIBYTE_SB1250
 702
 703 config SIBYTE_RHONE
 704         bool "BCM91125E-Rhone"
 705         select SIBYTE_BCM1125H
 706
 707 config SIBYTE_CARMEL
 708         bool "BCM91120x-Carmel"
 709         select SIBYTE_BCM1120
 710
 711 config SIBYTE_PTSWARM
 712         bool "BCM91250PT-PTSWARM"
 713         select SIBYTE_SB1250
 714
 715 config SIBYTE_LITTLESUR
 716         bool "BCM91250C2-LittleSur"
 717         select SIBYTE_SB1250
 718
 719 config SIBYTE_CRHINE
 720         bool "BCM91120C-CRhine"
 721         select SIBYTE_BCM1120
 722
 723 config SIBYTE_CRHONE
 724         bool "BCM91125C-CRhone"
 725         select SIBYTE_BCM1125
 726
 727 config SIBYTE_UNKNOWN
 728         bool "Other"
 729
 730 endchoice
 731
 732 config SIBYTE_BOARD
 733         bool
 734         depends on SIBYTE_SB1xxx_SOC && !SIBYTE_UNKNOWN
 735         default y
 736
 737 choice
 738         prompt "BCM1xxx SOC Type"
 739         depends on SIBYTE_UNKNOWN
 740         default SIBYTE_UNK_BCM1250
 741         help
 742           Since you haven't chosen a known evaluation board from
 743           Broadcom, you must explicitly pick the SOC this kernel is
 744           targetted for.
 745
 746 config SIBYTE_UNK_BCM1250
 747         bool "BCM1250"
 748         select SIBYTE_SB1250
 749
 750 config SIBYTE_UNK_BCM1120
 751         bool "BCM1120"
 752         select SIBYTE_BCM1120
 753
 754 config SIBYTE_UNK_BCM1125
 755         bool "BCM1125"
 756         select SIBYTE_BCM1125
 757
 758 config SIBYTE_UNK_BCM1125H
 759         bool "BCM1125H"
 760         select SIBYTE_BCM1125H
 761
 762 endchoice
 763
 764 config SIBYTE_SB1250
 765         bool
 766         select HW_HAS_PCI
 767
 768 config SIBYTE_BCM1120
 769         bool
 770         select SIBYTE_BCM112X
 771
 772 config SIBYTE_BCM1125
 773         bool
 774         select HW_HAS_PCI
 775         select SIBYTE_BCM112X
 776
 777 config SIBYTE_BCM1125H
 778         bool
 779         select HW_HAS_PCI
 780         select SIBYTE_BCM112X
 781
 782 config SIBYTE_BCM112X
 783         bool
 784
 785 choice
 786         prompt "SiByte SOC Stepping"
 787         depends on SIBYTE_SB1xxx_SOC
 788
 789 config CPU_SB1_PASS_1
 790         bool "1250 Pass1"
 791         depends on SIBYTE_SB1250
 792         select CPU_HAS_PREFETCH
 793
 794 config CPU_SB1_PASS_2_1250
 795         bool "1250 An"
 796         depends on SIBYTE_SB1250
 797         select CPU_SB1_PASS_2
 798         help
 799           Also called BCM1250 Pass 2
 800
 801 config CPU_SB1_PASS_2_2
 802         bool "1250 Bn"
 803         depends on SIBYTE_SB1250
 804         select CPU_HAS_PREFETCH
 805         help
 806           Also called BCM1250 Pass 2.2
 807
 808 config CPU_SB1_PASS_4
 809         bool "1250 Cn"
 810         depends on SIBYTE_SB1250
 811         select CPU_HAS_PREFETCH
 812         help
 813           Also called BCM1250 Pass 3
 814
 815 config CPU_SB1_PASS_2_112x
 816         bool "112x Hybrid"
 817         depends on SIBYTE_BCM112X
 818         select CPU_SB1_PASS_2
 819
 820 config CPU_SB1_PASS_3
 821         bool "112x An"
 822         depends on SIBYTE_BCM112X
 823         select CPU_HAS_PREFETCH
 824
 825 endchoice
 826
 827 config CPU_SB1_PASS_2
 828         bool
 829
 830 config SIBYTE_HAS_LDT
 831         bool
 832         depends on PCI && (SIBYTE_SB1250 || SIBYTE_BCM1125H)
 833         default y
 834
 835 config SIMULATION
 836         bool "Running under simulation"
 837         depends on SIBYTE_SB1xxx_SOC
 838         help
 839           Build a kernel suitable for running under the GDB simulator.
 840           Primarily adjusts the kernel's notion of time.
 841
 842 config SIBYTE_CFE
 843         bool "Booting from CFE"
 844         depends on SIBYTE_SB1xxx_SOC
 845         help
 846           Make use of the CFE API for enumerating available memory,
 847           controlling secondary CPUs, and possibly console output.
 848
 849 config SIBYTE_CFE_CONSOLE
 850         bool "Use firmware console"
 851         depends on SIBYTE_CFE
 852         help
 853           Use the CFE API's console write routines during boot.  Other console
 854           options (VT console, sb1250 duart console, etc.) should not be
 855           configured.
 856
 857 config SIBYTE_STANDALONE
 858         bool
 859         depends on SIBYTE_SB1xxx_SOC && !SIBYTE_CFE
 860         default y
 861
 862 config SIBYTE_STANDALONE_RAM_SIZE
 863         int "Memory size (in megabytes)"
 864         depends on SIBYTE_STANDALONE
 865         default "32"
 866
 867 config SIBYTE_BUS_WATCHER
 868         bool "Support for Bus Watcher statistics"
 869         depends on SIBYTE_SB1xxx_SOC
 870         help
 871           Handle and keep statistics on the bus error interrupts (COR_ECC,
 872           BAD_ECC, IO_BUS).
 873
 874 config SIBYTE_BW_TRACE
 875         bool "Capture bus trace before bus error"
 876         depends on SIBYTE_BUS_WATCHER
 877         help
 878           Run a continuous bus trace, dumping the raw data as soon as
 879           a ZBbus error is detected.  Cannot work if ZBbus profiling
 880           is turned on, and also will interfere with JTAG-based trace
 881           buffer activity.  Raw buffer data is dumped to console, and
 882           must be processed off-line.
 883
 884 config SIBYTE_SB1250_PROF
 885         bool "Support for SB1/SOC profiling - SB1/SCD perf counters"
 886         depends on SIBYTE_SB1xxx_SOC
 887
 888 config SIBYTE_TBPROF
 889         bool "Support for ZBbus profiling"
 890         depends on SIBYTE_SB1xxx_SOC
 891
 892 config SNI_RM200_PCI
 893         bool "Support for SNI RM200 PCI"
 894         select ARC
 895         select ARC32
 896         select BOOT_ELF32
 897         select DMA_NONCOHERENT
 898         select GENERIC_ISA_DMA
 899         select HAVE_STD_PC_SERIAL_PORT
 900         select HW_HAS_PCI
 901         select I8259
 902         select ISA
 903         help
 904           The SNI RM200 PCI was a MIPS-based platform manufactured by Siemens
 905           Nixdorf Informationssysteme (SNI), parent company of Pyramid
 906           Technology and now in turn merged with Fujitsu.  Say Y here to
 907           support this machine type.
 908
 909 config TOSHIBA_RBTX4927
 910         bool "Support for Toshiba TBTX49[23]7 board"
 911         depends on MIPS32
 912         select DMA_NONCOHERENT
 913         select HAS_TXX9_SERIAL
 914         select HW_HAS_PCI
 915         select I8259
 916         select ISA
 917         select SWAP_IO_SPACE
 918         help
 919           This Toshiba board is based on the TX4927 processor. Say Y here to
 920           support this machine type
 921
 922 config TOSHIBA_FPCIB0
 923         bool "FPCIB0 Backplane Support"
 924         depends on TOSHIBA_RBTX4927
 925
 926 config RWSEM_GENERIC_SPINLOCK
 927         bool
 928         default y
 929
 930 config RWSEM_XCHGADD_ALGORITHM
 931         bool
 932
 933 config GENERIC_CALIBRATE_DELAY
 934         bool
 935         default y
 936
 937 config HAVE_DEC_LOCK
 938         bool
 939         default y
 940
 941 #
 942 # Select some configuration options automatically based on user selections.
 943 #
 944 config ARC
 945         bool
 946         depends on SNI_RM200_PCI || SGI_IP32 || SGI_IP27 || SGI_IP22 || MIPS_MAGNUM_4000 || OLIVETTI_M700 || ACER_PICA_61
 947         default y
 948
 949 config  DMA_COHERENT
 950         bool
 951
 952 config  DMA_IP27
 953         bool
 954
 955 config  DMA_NONCOHERENT
 956         bool
 957
 958 config EARLY_PRINTK
 959         bool
 960         depends on MACH_DECSTATION
 961         default y
 962
 963 config GENERIC_ISA_DMA
 964         bool
 965         depends on SNI_RM200_PCI || MIPS_MAGNUM_4000 || OLIVETTI_M700 || ACER_PICA_61 || MIPS_MALTA
 966         default y
 967
 968 config I8259
 969         bool
 970         depends on SNI_RM200_PCI || DDB5477 || DDB5476 || DDB5074 || MACH_JAZZ || MIPS_MALTA || MIPS_COBALT
 971         default y
 972
 973 config LIMITED_DMA
 974         bool
 975         select HIGHMEM
 976
 977 config MIPS_BONITO64
 978         bool
 979         depends on MIPS_ATLAS || MIPS_MALTA
 980         default y
 981
 982 config MIPS_MSC
 983         bool
 984         depends on MIPS_ATLAS || MIPS_MALTA
 985         default y
 986
 987 config MIPS_NILE4
 988         bool
 989         depends on LASAT
 990         default y
 991
 992 config MIPS_DISABLE_OBSOLETE_IDE
 993         bool
 994
 995 config CPU_LITTLE_ENDIAN
 996         bool "Generate little endian code"
 997         default y if ACER_PICA_61 || CASIO_E55 || DDB5074 || DDB5476 || DDB5477 || MACH_DECSTATION || IBM_WORKPAD || LASAT || MIPS_COBALT || MIPS_ITE8172 || MIPS_IVR || SOC_AU1X00 || OLIVETTI_M700 || SNI_RM200_PCI || VICTOR_MPC30X || ZAO_CAPCELLA
 998         default n if MIPS_EV64120 || MIPS_EV96100 || MOMENCO_OCELOT || MOMENCO_OCELOT_G || SGI_IP22 || SGI_IP27 || SGI_IP32 || TOSHIBA_JMR3927
 999         help
1000           Some MIPS machines can be configured for either little or big endian
1001           byte order. These modes require different kernels. Say Y if your
1002           machine is little endian, N if it's a big endian machine.
1003
1004 config IRQ_CPU
1005         bool
1006
1007 config IRQ_CPU_RM7K
1008         bool
1009
1010 config IRQ_MV64340
1011         bool
1012
1013 config DDB5XXX_COMMON
1014         bool
1015         depends on DDB5074 || DDB5476 || DDB5477
1016         default y
1017
1018 config MIPS_BOARDS_GEN
1019         bool
1020         depends on MIPS_ATLAS || MIPS_MALTA || MIPS_SEAD
1021         default y
1022
1023 config MIPS_GT64111
1024         bool
1025         depends on MIPS_COBALT
1026         default y
1027
1028 config MIPS_GT64120
1029         bool
1030         depends on MIPS_EV64120 || MIPS_EV96100 || LASAT || MIPS_ATLAS || MIPS_MALTA || MOMENCO_OCELOT
1031         default y
1032
1033 config MIPS_TX3927
1034         bool
1035         depends on TOSHIBA_JMR3927
1036         select HAS_TXX9_SERIAL
1037         default y
1038
1039 config PCI_MARVELL
1040         bool
1041
1042 config ITE_BOARD_GEN
1043         bool
1044         depends on MIPS_IVR || MIPS_ITE8172
1045         default y
1046
1047 config SWAP_IO_SPACE
1048         bool
1049
1050 #
1051 # Unfortunately not all GT64120 systems run the chip at the same clock.
1052 # As the user for the clock rate and try to minimize the available options.
1053 #
1054 choice
1055         prompt "Galileo Chip Clock"
1056         #default SYSCLK_83 if MIPS_EV64120
1057         depends on MIPS_EV64120 || MOMENCO_OCELOT || MOMENCO_OCELOT_G
1058         default SYSCLK_83 if MIPS_EV64120
1059         default SYSCLK_100 if MOMENCO_OCELOT || MOMENCO_OCELOT_G
1060
1061 config SYSCLK_75
1062         bool "75" if MIPS_EV64120
1063
1064 config SYSCLK_83
1065         bool "83.3" if MIPS_EV64120
1066
1067 config SYSCLK_100
1068         bool "100" if MIPS_EV64120 || MOMENCO_OCELOT || MOMENCO_OCELOT_G
1069
1070 endchoice
1071
1072 config AU1X00_USB_DEVICE
1073         bool
1074         depends on MIPS_PB1500 || MIPS_PB1100 || MIPS_PB1000
1075         default n
1076
1077 config MIPS_GT96100
1078         bool
1079         depends on MIPS_EV96100
1080         default y
1081         help
1082           Say Y here to support the Galileo Technology GT96100 communications
1083           controller card.  There is a web page at <http://www.galileot.com/>.
1084
1085 config IT8172_CIR
1086         bool
1087         depends on MIPS_ITE8172 || MIPS_IVR
1088         default y
1089
1090 config IT8712
1091         bool
1092         depends on MIPS_ITE8172
1093         default y
1094
1095 config BOOT_ELF32
1096         bool
1097         depends on MACH_DECSTATION || MIPS_ATLAS || MIPS_MALTA || MOMENCO_JAGUAR_ATX || MOMENCO_OCELOT_3 || SIBYTE_SB1xxx_SOC || SGI_IP32 || SGI_IP22 || SNI_RM200_PCI
1098         default y
1099
1100 config MIPS_L1_CACHE_SHIFT
1101         int
1102         default "4" if MACH_DECSTATION
1103         default "7" if SGI_IP27
1104         default "5"
1105
1106 config ARC32
1107         bool
1108         depends on MACH_JAZZ || SNI_RM200_PCI || SGI_IP22 || SGI_IP32
1109         default y
1110
1111 config HAVE_STD_PC_SERIAL_PORT
1112         bool
1113
1114 config ARC_CONSOLE
1115         bool "ARC console support"
1116         depends on SGI_IP22 || SNI_RM200_PCI
1117
1118 config ARC_MEMORY
1119         bool
1120         depends on MACH_JAZZ || SNI_RM200_PCI || SGI_IP32
1121         default y
1122
1123 config ARC_PROMLIB
1124         bool
1125         depends on MACH_JAZZ || SNI_RM200_PCI || SGI_IP22 || SGI_IP32
1126         default y
1127
1128 config ARC64
1129         bool
1130         depends on SGI_IP27
1131         default y
1132
1133 config BOOT_ELF64
1134         bool
1135         depends on SGI_IP27
1136         default y
1137
1138 #config MAPPED_PCI_IO y
1139 #       bool
1140 #       depends on SGI_IP27
1141 #       default y
1142
1143 config QL_ISP_A64
1144         bool
1145         depends on SGI_IP27
1146         default y
1147
1148 config TOSHIBA_BOARDS
1149         bool
1150         depends on TOSHIBA_JMR3927 || TOSHIBA_RBTX4927
1151         default y
1152
1153 endmenu
1154
1155 menu "CPU selection"
1156
1157 choice
1158         prompt "CPU type"
1159         default CPU_R4X00
1160
1161 config CPU_MIPS32
1162         bool "MIPS32"
1163
1164 config CPU_MIPS64
1165         bool "MIPS64"
1166
1167 config CPU_R3000
1168         bool "R3000"
1169         depends on MIPS32
1170         help
1171           Please make sure to pick the right CPU type. Linux/MIPS is not
1172           designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1173           *not* work on R4000 machines and vice versa.  However, since most
1174           of the supported machines have an R4000 (or similar) CPU, R4x00
1175           might be a safe bet.  If the resulting kernel does not work,
1176           try to recompile with R3000.
1177
1178 config CPU_TX39XX
1179         bool "R39XX"
1180         depends on MIPS32
1181
1182 config CPU_VR41XX
1183         bool "R41xx"
1184         help
1185           The options selects support for the NEC VR41xx series of processors.
1186           Only choose this option if you have one of these processors as a
1187           kernel built with this option will not run on any other type of
1188           processor or vice versa.
1189
1190 config CPU_R4300
1191         bool "R4300"
1192         help
1193           MIPS Technologies R4300-series processors.
1194
1195 config CPU_R4X00
1196         bool "R4x00"
1197         help
1198           MIPS Technologies R4000-series processors other than 4300, including
1199           the R4000, R4400, R4600, and 4700.
1200
1201 config CPU_TX49XX
1202         bool "R49XX"
1203
1204 config CPU_R5000
1205         bool "R5000"
1206         help
1207           MIPS Technologies R5000-series processors other than the Nevada.
1208
1209 config CPU_R5432
1210         bool "R5432"
1211
1212 config CPU_R6000
1213         bool "R6000"
1214         depends on MIPS32 && EXPERIMENTAL
1215         help
1216           MIPS Technologies R6000 and R6000A series processors.  Note these
1217           processors are extremly rare and the support for them is incomplete.
1218
1219 config CPU_NEVADA
1220         bool "RM52xx"
1221         help
1222           QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1223
1224 config CPU_R8000
1225         bool "R8000"
1226         depends on MIPS64 && EXPERIMENTAL
1227         help
1228           MIPS Technologies R8000 processors.  Note these processors are
1229           uncommon and the support for them is incomplete.
1230
1231 config CPU_R10000
1232         bool "R10000"
1233         help
1234           MIPS Technologies R10000-series processors.
1235
1236 config CPU_RM7000
1237         bool "RM7000"
1238
1239 config CPU_RM9000
1240         bool "RM9000"
1241
1242 config CPU_SB1
1243         bool "SB1"
1244
1245 endchoice
1246
1247 choice
1248         prompt "Kernel page size"
1249         default PAGE_SIZE_4KB
1250
1251 config PAGE_SIZE_4KB
1252         bool "4kB"
1253         help
1254          This option select the standard 4kB Linux page size.  On some
1255          R3000-family processors this is the only available page size.  Using
1256          4kB page size will minimize memory consumption and is therefore
1257          recommended for low memory systems.
1258
1259 config PAGE_SIZE_8KB
1260         bool "8kB"
1261         depends on EXPERIMENTAL && CPU_R8000
1262         help
1263           Using 8kB page size will result in higher performance kernel at
1264           the price of higher memory consumption.  This option is available
1265           only on the R8000 processor.  Not that at the time of this writing
1266           this option is still high experimental; there are also issues with
1267           compatibility of user applications.
1268
1269 config PAGE_SIZE_16KB
1270         bool "16kB"
1271         depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1272         help
1273           Using 16kB page size will result in higher performance kernel at
1274           the price of higher memory consumption.  This option is available on
1275           all non-R3000 family processor.  Not that at the time of this
1276           writing this option is still high experimental; there are also
1277           issues with compatibility of user applications.
1278
1279 config PAGE_SIZE_64KB
1280         bool "64kB"
1281         depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1282         help
1283           Using 64kB page size will result in higher performance kernel at
1284           the price of higher memory consumption.  This option is available on
1285           all non-R3000 family processor.  Not that at the time of this
1286           writing this option is still high experimental; there are also
1287           issues with compatibility of user applications.
1288
1289 endchoice
1290
1291 config BOARD_SCACHE
1292         bool
1293
1294 config IP22_CPU_SCACHE
1295         bool
1296         select BOARD_SCACHE
1297
1298 config R5000_CPU_SCACHE
1299         bool
1300         select BOARD_SCACHE
1301
1302 config RM7000_CPU_SCACHE
1303         bool
1304         select BOARD_SCACHE
1305
1306 config SIBYTE_DMA_PAGEOPS
1307         bool "Use DMA to clear/copy pages"
1308         depends on CPU_SB1
1309         help
1310           Instead of using the CPU to zero and copy pages, use a Data Mover
1311           channel.  These DMA channels are otherwise unused by the standard
1312           SiByte Linux port.  Seems to give a small performance benefit.
1313
1314 config CPU_HAS_PREFETCH
1315         bool "Enable prefetches" if CPU_SB1 && !CPU_SB1_PASS_2
1316         default y if CPU_MIPS32 || CPU_MIPS64 || CPU_RM7000 || CPU_RM9000 || CPU_R10000
1317
1318 config VTAG_ICACHE
1319         bool "Support for Virtual Tagged I-cache" if CPU_MIPS64 || CPU_MIPS32
1320         default y if CPU_SB1
1321
1322 config SB1_PASS_1_WORKAROUNDS
1323         bool
1324         depends on CPU_SB1_PASS_1
1325         default y
1326
1327 config SB1_PASS_2_WORKAROUNDS
1328         bool
1329         depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1330         default y
1331
1332 config SB1_PASS_2_1_WORKAROUNDS
1333         bool
1334         depends on CPU_SB1 && CPU_SB1_PASS_2
1335         default y
1336
1337 config 64BIT_PHYS_ADDR
1338         bool "Support for 64-bit physical address space"
1339         depends on (CPU_R4X00 || CPU_R5000 || CPU_RM7000 || CPU_RM9000 || CPU_R10000 || CPU_SB1 || CPU_MIPS32 || CPU_MIPS64) && MIPS32
1340
1341 config CPU_ADVANCED
1342         bool "Override CPU Options"
1343         depends on MIPS32
1344         help
1345           Saying yes here allows you to select support for various features
1346           your CPU may or may not have.  Most people should say N here.
1347
1348 config CPU_HAS_LLSC
1349         bool "ll/sc Instructions available" if CPU_ADVANCED
1350         default y if !CPU_ADVANCED && !CPU_R3000 && !CPU_VR41XX && !CPU_TX39XX
1351         help
1352           MIPS R4000 series and later provide the Load Linked (ll)
1353           and Store Conditional (sc) instructions. More information is
1354           available at <http://www.go-ecs.com/mips/miptek1.htm>.
1355
1356           Say Y here if your CPU has the ll and sc instructions.  Say Y here
1357           for better performance, N if you don't know.  You must say Y here
1358           for multiprocessor machines.
1359
1360 config CPU_HAS_LLDSCD
1361         bool "lld/scd Instructions available" if CPU_ADVANCED
1362         default y if !CPU_ADVANCED && !CPU_R3000 && !CPU_VR41XX && !CPU_TX39XX && !CPU_MIPS32
1363         help
1364           Say Y here if your CPU has the lld and scd instructions, the 64-bit
1365           equivalents of ll and sc.  Say Y here for better performance, N if
1366           you don't know.  You must say Y here for multiprocessor machines.
1367
1368 config CPU_HAS_WB
1369         bool "Writeback Buffer available" if CPU_ADVANCED
1370         default y if !CPU_ADVANCED && CPU_R3000 && MACH_DECSTATION
1371         help
1372           Say N here for slightly better performance.  You must say Y here for
1373           machines which require flushing of write buffers in software.  Saying
1374           Y is the safe option; N may result in kernel malfunction and crashes.
1375
1376 config CPU_HAS_SYNC
1377         bool
1378         depends on !CPU_R3000
1379         default y
1380
1381 #
1382 # - Highmem only makes sense for the 32-bit kernel.
1383 # - The current highmem code will only work properly on physically indexed
1384 #   caches such as R3000, SB1, R7000 or those that look like they're virtually
1385 #   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
1386 #   moment we protect the user and offer the highmem option only on machines
1387 #   where it's known to be safe.  This will not offer highmem on a few systems
1388 #   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1389 #   indexed CPUs but we're playing safe.
1390 # - We should not offer highmem for system of which we already know that they
1391 #   don't have memory configurations that could gain from highmem support in
1392 #   the kernel because they don't support configurations with RAM at physical
1393 #   addresses > 0x20000000.
1394 #
1395 config HIGHMEM
1396         bool "High Memory Support"
1397         depends on MIPS32 && (CPU_R3000 || CPU_SB1 || CPU_R7000 || CPU_RM9000 || CPU_R10000) && !(MACH_DECSTATION || MOMENCO_JAGUAR_ATX)
1398
1399 config ARCH_FLATMEM_ENABLE
1400         def_bool y
1401         depends on !NUMA
1402
1403 source "mm/Kconfig"
1404
1405 config SMP
1406         bool "Multi-Processing support"
1407         depends on CPU_RM9000 || (SIBYTE_SB1250 && !SIBYTE_STANDALONE) || SGI_IP27
1408         ---help---
1409           This enables support for systems with more than one CPU. If you have
1410           a system with only one CPU, like most personal computers, say N. If
1411           you have a system with more than one CPU, say Y.
1412
1413           If you say N here, the kernel will run on single and multiprocessor
1414           machines, but will use only one CPU of a multiprocessor machine. If
1415           you say Y here, the kernel will run on many, but not all,
1416           singleprocessor machines. On a singleprocessor machine, the kernel
1417           will run faster if you say N here.
1418
1419           People using multiprocessor machines who say Y here should also say
1420           Y to "Enhanced Real Time Clock Support", below.
1421
1422           See also the <file:Documentation/smp.txt> and the SMP-HOWTO
1423           available at <http://www.tldp.org/docs.html#howto>.
1424
1425           If you don't know what to do here, say N.
1426
1427 config NR_CPUS
1428         int "Maximum number of CPUs (2-64)"
1429         range 2 64
1430         depends on SMP
1431         default "64" if SGI_IP27
1432         default "2"
1433         help
1434           This allows you to specify the maximum number of CPUs which this
1435           kernel will support.  The maximum supported value is 32 for 32-bit
1436           kernel and 64 for 64-bit kernels; the minimum value which makes
1437           sense is 2.
1438
1439           This is purely to save memory - each supported CPU adds
1440           approximately eight kilobytes to the kernel image.
1441
1442 config PREEMPT
1443         bool "Preemptible Kernel"
1444         help
1445           This option reduces the latency of the kernel when reacting to
1446           real-time or interactive events by allowing a low priority process to
1447           be preempted even if it is in kernel mode executing a system call.
1448           This allows applications to run more reliably even when the system is
1449           under load.
1450
1451 config RTC_DS1742
1452         bool "DS1742 BRAM/RTC support"
1453         depends on TOSHIBA_JMR3927 || TOSHIBA_RBTX4927
1454
1455 config MIPS_INSANE_LARGE
1456         bool "Support for large 64-bit configurations"
1457         depends on CPU_R10000 && MIPS64
1458         help
1459           MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1460           previous 64-bit processors which only supported 40 bit / 1TB. If you
1461           need processes of more than 1TB virtual address space, say Y here.
1462           This will result in additional memory usage, so it is not
1463           recommended for normal users.
1464
1465 config RWSEM_GENERIC_SPINLOCK
1466         bool
1467         default y
1468
1469 endmenu
1470
1471 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1472
1473 config HW_HAS_PCI
1474         bool
1475
1476 config PCI
1477         bool "Support for PCI controller"
1478         depends on HW_HAS_PCI
1479         help
1480           Find out whether you have a PCI motherboard. PCI is the name of a
1481           bus system, i.e. the way the CPU talks to the other stuff inside
1482           your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1483           say Y, otherwise N.
1484
1485           The PCI-HOWTO, available from
1486           <http://www.tldp.org/docs.html#howto>, contains valuable
1487           information about which PCI hardware does work under Linux and which
1488           doesn't.
1489
1490 config PCI_DOMAINS
1491         bool
1492         depends on PCI
1493
1494 source "drivers/pci/Kconfig"
1495
1496 #
1497 # ISA support is now enabled via select.  Too many systems still have the one
1498 # or other ISA chip on the board that users don't know about so don't expect
1499 # users to choose the right thing ...
1500 #
1501 config ISA
1502         bool
1503
1504 config EISA
1505         bool "EISA support"
1506         depends on SGI_IP22 || SNI_RM200_PCI
1507         select ISA
1508         ---help---
1509           The Extended Industry Standard Architecture (EISA) bus was
1510           developed as an open alternative to the IBM MicroChannel bus.
1511
1512           The EISA bus provided some of the features of the IBM MicroChannel
1513           bus while maintaining backward compatibility with cards made for
1514           the older ISA bus.  The EISA bus saw limited use between 1988 and
1515           1995 when it was made obsolete by the PCI bus.
1516
1517           Say Y here if you are building a kernel for an EISA-based machine.
1518
1519           Otherwise, say N.
1520
1521 source "drivers/eisa/Kconfig"
1522
1523 config TC
1524         bool "TURBOchannel support"
1525         depends on MACH_DECSTATION
1526         help
1527           TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
1528           processors.  Documentation on writing device drivers for TurboChannel
1529           is available at:
1530           <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
1531
1532 #config ACCESSBUS
1533 #       bool "Access.Bus support"
1534 #       depends on TC
1535
1536 config MMU
1537         bool
1538         default y
1539
1540 config MCA
1541         bool
1542
1543 config SBUS
1544         bool
1545
1546 source "drivers/pcmcia/Kconfig"
1547
1548 source "drivers/pci/hotplug/Kconfig"
1549
1550 endmenu
1551
1552 menu "Executable file formats"
1553
1554 source "fs/Kconfig.binfmt"
1555
1556 config TRAD_SIGNALS
1557         bool
1558         default y if MIPS32
1559
1560 config BUILD_ELF64
1561         bool "Use 64-bit ELF format for building"
1562         depends on MIPS64
1563         help
1564           A 64-bit kernel is usually built using the 64-bit ELF binary object
1565           format as it's one that allows arbitrary 64-bit constructs.  For
1566           kernels that are loaded within the KSEG compatibility segments the
1567           32-bit ELF format can optionally be used resulting in a somewhat
1568           smaller binary, but this option is not explicitly supported by the
1569           toolchain and since binutils 2.14 it does not even work at all.
1570
1571           Say Y to use the 64-bit format or N to use the 32-bit one.
1572
1573           If unsure say Y.
1574
1575 config BINFMT_IRIX
1576         bool "Include IRIX binary compatibility"
1577         depends on !CPU_LITTLE_ENDIAN && MIPS32 && BROKEN
1578
1579 config MIPS32_COMPAT
1580         bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
1581         depends on MIPS64
1582         help
1583           Select this option if you want Linux/MIPS 32-bit binary
1584           compatibility. Since all software available for Linux/MIPS is
1585           currently 32-bit you should say Y here.
1586
1587 config COMPAT
1588         bool
1589         depends on MIPS32_COMPAT
1590         default y
1591
1592 config MIPS32_O32
1593         bool "Kernel support for o32 binaries"
1594         depends on MIPS32_COMPAT
1595         help
1596           Select this option if you want to run o32 binaries.  These are pure
1597           32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
1598           existing binaries are in this format.
1599
1600           If unsure, say Y.
1601
1602 config MIPS32_N32
1603         bool "Kernel support for n32 binaries"
1604         depends on MIPS32_COMPAT
1605         help
1606           Select this option if you want to run n32 binaries.  These are
1607           64-bit binaries using 32-bit quantities for addressing and certain
1608           data that would normally be 64-bit.  They are used in special
1609           cases.
1610
1611           If unsure, say N.
1612
1613 config BINFMT_ELF32
1614         bool
1615         default y if MIPS32_O32 || MIPS32_N32
1616
1617 config PM
1618         bool "Power Management support (EXPERIMENTAL)"
1619         depends on EXPERIMENTAL && MACH_AU1X00
1620
1621 endmenu
1622
1623 source "net/Kconfig"
1624
1625 source "drivers/Kconfig"
1626
1627 source "fs/Kconfig"
1628
1629 source "arch/mips/Kconfig.debug"
1630
1631 source "security/Kconfig"
1632
1633 source "crypto/Kconfig"
1634
1635 source "lib/Kconfig"
1636
1637 #
1638 # Use the generic interrupt handling code in kernel/irq/:
1639 #
1640 config GENERIC_HARDIRQS
1641         bool
1642         default y
1643
1644 config GENERIC_IRQ_PROBE
1645         bool
1646         default y
1647
1648 config ISA_DMA_API
1649         bool
1650         default y