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         select PCI_VR41XX
  84
  85 config ROCKHOPPER
  86         bool "Support for Rockhopper baseboard"
  87         depends on NEC_CMBVR4133
  88         select I8259
  89         select HAVE_STD_PC_SERIAL_PORT
  90
  91 config CASIO_E55
  92         bool "Support for CASIO CASSIOPEIA E-10/15/55/65"
  93         depends on MACH_VR41XX
  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 DMA_NONCOHERENT
 102         select IRQ_CPU
 103         select ISA
 104
 105 config TANBAC_TB0226
 106         bool "Support for TANBAC TB0226 (Mbase)"
 107         depends on MACH_VR41XX
 108         select DMA_NONCOHERENT
 109         select HW_HAS_PCI
 110         select IRQ_CPU
 111         help
 112           The TANBAC TB0226 (Mbase) is a MIPS-based platform manufactured by TANBAC.
 113           Please refer to <http://www.tanbac.co.jp/> about Mbase.
 114
 115 config TANBAC_TB0229
 116         bool "Support for TANBAC TB0229 (VR4131DIMM)"
 117         depends on MACH_VR41XX
 118         select DMA_NONCOHERENT
 119         select HW_HAS_PCI
 120         select IRQ_CPU
 121         help
 122           The TANBAC TB0229 (VR4131DIMM) is a MIPS-based platform manufactured by TANBAC.
 123           Please refer to <http://www.tanbac.co.jp/> about VR4131DIMM.
 124
 125 config VICTOR_MPC30X
 126         bool "Support for Victor MP-C303/304"
 127         select DMA_NONCOHERENT
 128         select HW_HAS_PCI
 129         select IRQ_CPU
 130         depends on MACH_VR41XX
 131
 132 config ZAO_CAPCELLA
 133         bool "Support for ZAO Networks Capcella"
 134         depends on MACH_VR41XX
 135         select DMA_NONCOHERENT
 136         select HW_HAS_PCI
 137         select IRQ_CPU
 138
 139 config PCI_VR41XX
 140         bool "Add PCI control unit support of NEC VR4100 series"
 141         depends on MACH_VR41XX && PCI
 142
 143 config VRC4171
 144         tristate "Add NEC VRC4171 companion chip support"
 145         depends on MACH_VR41XX && ISA
 146         ---help---
 147           The NEC VRC4171/4171A is a companion chip for NEC VR4111/VR4121.
 148
 149 config VRC4173
 150         tristate "Add NEC VRC4173 companion chip support"
 151         depends on MACH_VR41XX && PCI_VR41XX
 152         ---help---
 153           The NEC VRC4173 is a companion chip for NEC VR4122/VR4131.
 154
 155 config TOSHIBA_JMR3927
 156         bool "Support for Toshiba JMR-TX3927 board"
 157         depends on MIPS32
 158         select DMA_NONCOHERENT
 159         select HW_HAS_PCI
 160         select SWAP_IO_SPACE
 161
 162 config MIPS_COBALT
 163         bool "Support for Cobalt Server (EXPERIMENTAL)"
 164         depends on EXPERIMENTAL
 165         select DMA_NONCOHERENT
 166         select HW_HAS_PCI
 167         select I8259
 168         select IRQ_CPU
 169
 170 config MACH_DECSTATION
 171         bool "Support for DECstations"
 172         select BOOT_ELF32
 173         select DMA_NONCOHERENT
 174         select IRQ_CPU
 175         depends on MIPS32 || EXPERIMENTAL
 176         ---help---
 177           This enables support for DEC's MIPS based workstations.  For details
 178           see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
 179           DECstation porting pages on <http://decstation.unix-ag.org/>.
 180
 181           If you have one of the following DECstation Models you definitely
 182           want to choose R4xx0 for the CPU Type:
 183
 184                 DECstation 5000/50
 185                 DECstation 5000/150
 186                 DECstation 5000/260
 187                 DECsystem 5900/260
 188
 189           otherwise choose R3000.
 190
 191 config MIPS_EV64120
 192         bool "Support for Galileo EV64120 Evaluation board (EXPERIMENTAL)"
 193         depends on EXPERIMENTAL
 194         select DMA_NONCOHERENT
 195         select HW_HAS_PCI
 196         select MIPS_GT64120
 197         help
 198           This is an evaluation board based on the Galileo GT-64120
 199           single-chip system controller that contains a MIPS R5000 compatible
 200           core running at 75/100MHz.  Their website is located at
 201           <http://www.marvell.com/>.  Say Y here if you wish to build a
 202           kernel for this platform.
 203
 204 config EVB_PCI1
 205         bool "Enable Second PCI (PCI1)"
 206         depends on MIPS_EV64120
 207
 208 config MIPS_EV96100
 209         bool "Support for Galileo EV96100 Evaluation board (EXPERIMENTAL)"
 210         depends on EXPERIMENTAL
 211         select DMA_NONCOHERENT
 212         select HW_HAS_PCI
 213         select IRQ_CPU
 214         select MIPS_GT96100
 215         select RM7000_CPU_SCACHE
 216         select SWAP_IO_SPACE
 217         help
 218           This is an evaluation board based on the Galileo GT-96100 LAN/WAN
 219           communications controllers containing a MIPS R5000 compatible core
 220           running at 83MHz. Their website is <http://www.marvell.com/>. Say Y
 221           here if you wish to build a kernel for this platform.
 222
 223 config MIPS_IVR
 224         bool "Support for Globespan IVR board"
 225         select DMA_NONCOHERENT
 226         select HW_HAS_PCI
 227         help
 228           This is an evaluation board built by Globespan to showcase thir
 229           iVR (Internet Video Recorder) design. It utilizes a QED RM5231
 230           R5000 MIPS core. More information can be found out their website
 231           located at <http://www.globespan.net/>. Say Y here if you wish to
 232           build a kernel for this platform.
 233
 234 config LASAT
 235         bool "Support for LASAT Networks platforms"
 236         select DMA_NONCOHERENT
 237         select HW_HAS_PCI
 238         select MIPS_GT64120
 239         select R5000_CPU_SCACHE
 240
 241 config PICVUE
 242         tristate "PICVUE LCD display driver"
 243         depends on LASAT
 244
 245 config PICVUE_PROC
 246         tristate "PICVUE LCD display driver /proc interface"
 247         depends on PICVUE
 248
 249 config DS1603
 250         bool "DS1603 RTC driver"
 251         depends on LASAT
 252
 253 config LASAT_SYSCTL
 254         bool "LASAT sysctl interface"
 255         depends on LASAT
 256
 257 config MIPS_ITE8172
 258         bool "Support for ITE 8172G board"
 259         select DMA_NONCOHERENT
 260         select HW_HAS_PCI
 261         help
 262           Ths is an evaluation board made by ITE <http://www.ite.com.tw/>
 263           with ATX form factor that utilizes a MIPS R5000 to work with its
 264           ITE8172G companion internet appliance chip. The MIPS core can be
 265           either a NEC Vr5432 or QED RM5231. Say Y here if you wish to build
 266           a kernel for this platform.
 267
 268 config IT8172_REVC
 269         bool "Support for older IT8172 (Rev C)"
 270         depends on MIPS_ITE8172
 271         help
 272           Say Y here to support the older, Revision C version of the Integrated
 273           Technology Express, Inc. ITE8172 SBC.  Vendor page at
 274           <http://www.ite.com.tw/ia/brief_it8172bsp.htm>; picture of the
 275           board at <http://www.mvista.com/partners/semiconductor/ite.html>.
 276
 277 config MIPS_ATLAS
 278         bool "Support for MIPS Atlas board"
 279         select BOOT_ELF32
 280         select DMA_NONCOHERENT
 281         select HW_HAS_PCI
 282         select MIPS_GT64120
 283         select SWAP_IO_SPACE
 284         help
 285           This enables support for the QED R5231-based MIPS Atlas evaluation
 286           board.
 287
 288 config MIPS_MALTA
 289         bool "Support for MIPS Malta board"
 290         select BOOT_ELF32
 291         select HAVE_STD_PC_SERIAL_PORT
 292         select DMA_NONCOHERENT
 293         select GENERIC_ISA_DMA
 294         select HW_HAS_PCI
 295         select I8259
 296         select MIPS_GT64120
 297         select SWAP_IO_SPACE
 298         help
 299           This enables support for the VR5000-based MIPS Malta evaluation
 300           board.
 301
 302 config MIPS_SEAD
 303         bool "Support for MIPS SEAD board (EXPERIMENTAL)"
 304         depends on EXPERIMENTAL
 305         select IRQ_CPU
 306         select DMA_NONCOHERENT
 307
 308 config MOMENCO_OCELOT
 309         bool "Support for Momentum Ocelot board"
 310         select DMA_NONCOHERENT
 311         select HW_HAS_PCI
 312         select IRQ_CPU
 313         select IRQ_CPU_RM7K
 314         select MIPS_GT64120
 315         select RM7000_CPU_SCACHE
 316         select SWAP_IO_SPACE
 317         help
 318           The Ocelot is a MIPS-based Single Board Computer (SBC) made by
 319           Momentum Computer <http://www.momenco.com/>.
 320
 321 config MOMENCO_OCELOT_G
 322         bool "Support for Momentum Ocelot-G board"
 323         select DMA_NONCOHERENT
 324         select HW_HAS_PCI
 325         select IRQ_CPU
 326         select IRQ_CPU_RM7K
 327         select PCI_MARVELL
 328         select RM7000_CPU_SCACHE
 329         select SWAP_IO_SPACE
 330         help
 331           The Ocelot is a MIPS-based Single Board Computer (SBC) made by
 332           Momentum Computer <http://www.momenco.com/>.
 333
 334 config MOMENCO_OCELOT_C
 335         bool "Support for Momentum Ocelot-C board"
 336         select DMA_NONCOHERENT
 337         select HW_HAS_PCI
 338         select IRQ_CPU
 339         select IRQ_MV64340
 340         select PCI_MARVELL
 341         select RM7000_CPU_SCACHE
 342         select SWAP_IO_SPACE
 343         help
 344           The Ocelot is a MIPS-based Single Board Computer (SBC) made by
 345           Momentum Computer <http://www.momenco.com/>.
 346
 347 config MOMENCO_OCELOT_3
 348         bool "Support for Momentum Ocelot-3 board"
 349         select BOOT_ELF32
 350         select DMA_NONCOHERENT
 351         select HW_HAS_PCI
 352         select IRQ_CPU
 353         select IRQ_CPU_RM7K
 354         select IRQ_MV64340
 355         select PCI_MARVELL
 356         select RM7000_CPU_SCACHE
 357         select SWAP_IO_SPACE
 358         help
 359           The Ocelot-3 is based off Discovery III System Controller and
 360           PMC-Sierra Rm79000 core.
 361
 362 config MOMENCO_JAGUAR_ATX
 363         bool "Support for Momentum Jaguar board"
 364         select BOOT_ELF32
 365         select DMA_NONCOHERENT
 366         select HW_HAS_PCI
 367         select IRQ_CPU
 368         select IRQ_CPU_RM7K
 369         select IRQ_MV64340
 370         select LIMITED_DMA
 371         select PCI_MARVELL
 372         select RM7000_CPU_SCACHE
 373         select SWAP_IO_SPACE
 374         help
 375           The Jaguar ATX is a MIPS-based Single Board Computer (SBC) made by
 376           Momentum Computer <http://www.momenco.com/>.
 377
 378 config JAGUAR_DMALOW
 379         bool "Low DMA Mode"
 380         depends on MOMENCO_JAGUAR_ATX
 381         help
 382           Select to Y if jump JP5 is set on your board, N otherwise.  Normally
 383           the jumper is set, so if you feel unsafe, just say Y.
 384
 385 config PMC_YOSEMITE
 386         bool "Support for PMC-Sierra Yosemite eval board"
 387         select DMA_COHERENT
 388         select HW_HAS_PCI
 389         select IRQ_CPU
 390         select IRQ_CPU_RM7K
 391         select IRQ_CPU_RM9K
 392         select SWAP_IO_SPACE
 393         help
 394           Yosemite is an evaluation board for the RM9000x2 processor
 395           manufactured by PMC-Sierra
 396
 397 config HYPERTRANSPORT
 398         bool "Hypertransport Support for PMC-Sierra Yosemite"
 399         depends on PMC_YOSEMITE
 400
 401 config DDB5074
 402         bool "Support for NEC DDB Vrc-5074 (EXPERIMENTAL)"
 403         depends on EXPERIMENTAL
 404         select DMA_NONCOHERENT
 405         select HAVE_STD_PC_SERIAL_PORT
 406         select HW_HAS_PCI
 407         select IRQ_CPU
 408         select I8259
 409         select ISA
 410         help
 411           This enables support for the VR5000-based NEC DDB Vrc-5074
 412           evaluation board.
 413
 414 config DDB5476
 415         bool "Support for NEC DDB Vrc-5476"
 416         select DMA_NONCOHERENT
 417         select HAVE_STD_PC_SERIAL_PORT
 418         select HW_HAS_PCI
 419         select IRQ_CPU
 420         select I8259
 421         select ISA
 422         help
 423           This enables support for the R5432-based NEC DDB Vrc-5476
 424           evaluation board.
 425
 426           Features : kernel debugging, serial terminal, NFS root fs, on-board
 427           ether port USB, AC97, PCI, PCI VGA card & framebuffer console,
 428           IDE controller, PS2 keyboard, PS2 mouse, etc.
 429
 430 config DDB5477
 431         bool "Support for NEC DDB Vrc-5477"
 432         select DMA_NONCOHERENT
 433         select HW_HAS_PCI
 434         select I8259
 435         select IRQ_CPU
 436         help
 437           This enables support for the R5432-based NEC DDB Vrc-5477,
 438           or Rockhopper/SolutionGear boards with R5432/R5500 CPUs.
 439
 440           Features : kernel debugging, serial terminal, NFS root fs, on-board
 441           ether port USB, AC97, PCI, etc.
 442
 443 config DDB5477_BUS_FREQUENCY
 444         int "bus frequency (in kHZ, 0 for auto-detect)"
 445         depends on DDB5477
 446         default 0
 447
 448 config NEC_OSPREY
 449         bool "Support for NEC Osprey board"
 450         select DMA_NONCOHERENT
 451         select IRQ_CPU
 452
 453 config SGI_IP22
 454         bool "Support for SGI IP22 (Indy/Indigo2)"
 455         select ARC
 456         select ARC32
 457         select BOOT_ELF32
 458         select DMA_NONCOHERENT
 459         select IP22_CPU_SCACHE
 460         select IRQ_CPU
 461         select SWAP_IO_SPACE
 462         help
 463           This are the SGI Indy, Challenge S and Indigo2, as well as certain
 464           OEM variants like the Tandem CMN B006S. To compile a Linux kernel
 465           that runs on these, say Y here.
 466
 467 config SGI_IP27
 468         bool "Support for SGI IP27 (Origin200/2000)"
 469         depends on MIPS64
 470         select ARC
 471         select ARC64
 472         select DMA_IP27
 473         select HW_HAS_PCI
 474         select PCI_DOMAINS
 475         help
 476           This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
 477           workstations.  To compile a Linux kernel that runs on these, say Y
 478           here.
 479
 480 #config SGI_SN0_XXL
 481 #       bool "IP27 XXL"
 482 #       depends on SGI_IP27
 483 #         This options adds support for userspace processes upto 16TB size.
 484 #         Normally the limit is just .5TB.
 485
 486 config SGI_SN0_N_MODE
 487         bool "IP27 N-Mode"
 488         depends on SGI_IP27
 489         help
 490           The nodes of Origin 200, Origin 2000 and Onyx 2 systems can be
 491           configured in either N-Modes which allows for more nodes or M-Mode
 492           which allows for more memory.  Your system is most probably
 493           running in M-Mode, so you should say N here.
 494
 495 config DISCONTIGMEM
 496         bool
 497         default y if SGI_IP27
 498         help
 499           Say Y to upport efficient handling of discontiguous physical memory,
 500           for architectures which are either NUMA (Non-Uniform Memory Access)
 501           or have huge holes in the physical address space for other reasons.
 502           See <file:Documentation/vm/numa> for more.
 503
 504 config NUMA
 505         bool "NUMA Support"
 506         depends on SGI_IP27
 507         help
 508           Say Y to compile the kernel to support NUMA (Non-Uniform Memory
 509           Access).  This option is for configuring high-end multiprocessor
 510           server machines.  If in doubt, say N.
 511
 512 config MAPPED_KERNEL
 513         bool "Mapped kernel support"
 514         depends on SGI_IP27
 515         help
 516           Change the way a Linux kernel is loaded into memory on a MIPS64
 517           machine.  This is required in order to support text replication and
 518           NUMA.  If you need to understand it, read the source code.
 519
 520 config REPLICATE_KTEXT
 521         bool "Kernel text replication support"
 522         depends on SGI_IP27
 523         help
 524           Say Y here to enable replicating the kernel text across multiple
 525           nodes in a NUMA cluster.  This trades memory for speed.
 526
 527 config REPLICATE_EXHANDLERS
 528         bool "Exception handler replication support"
 529         depends on SGI_IP27
 530         help
 531           Say Y here to enable replicating the kernel exception handlers
 532           across multiple nodes in a NUMA cluster. This trades memory for
 533           speed.
 534
 535 config SGI_IP32
 536         bool "Support for SGI IP32 (O2) (EXPERIMENTAL)"
 537         depends on MIPS64 && EXPERIMENTAL
 538         select ARC
 539         select ARC32
 540         select BOOT_ELF32
 541         select OWN_DMA
 542         select DMA_IP32
 543         select DMA_NONCOHERENT
 544         select HW_HAS_PCI
 545         select R5000_CPU_SCACHE
 546         select RM7000_CPU_SCACHE
 547         help
 548           If you want this kernel to run on SGI O2 workstation, say Y here.
 549
 550 config SOC_AU1X00
 551         depends on MIPS32
 552         bool "Support for AMD/Alchemy Au1X00 SOCs"
 553
 554 choice
 555         prompt "Au1X00 SOC Type"
 556         depends on SOC_AU1X00
 557         help
 558           Say Y here to enable support for one of three AMD/Alchemy
 559           SOCs. For additional documentation see www.amd.com.
 560
 561 config SOC_AU1000
 562         bool "SOC_AU1000"
 563 config SOC_AU1100
 564         bool "SOC_AU1100"
 565 config SOC_AU1500
 566         bool "SOC_AU1500"
 567 config SOC_AU1550
 568         bool "SOC_AU1550"
 569
 570 endchoice
 571
 572 choice
 573         prompt "AMD/Alchemy Au1x00 board support"
 574         depends on SOC_AU1X00
 575         help
 576           These are evaluation boards built by AMD/Alchemy to
 577           showcase their Au1X00 Internet Edge Processors. The SOC design
 578           is based on the MIPS32 architecture running at 266/400/500MHz
 579           with many integrated peripherals. Further information can be
 580           found at their website, <http://www.amd.com/>. Say Y here if you
 581           wish to build a kernel for this platform.
 582
 583 config MIPS_PB1000
 584         bool "PB1000 board"
 585         depends on SOC_AU1000
 586         select DMA_NONCOHERENT
 587         select HW_HAS_PCI
 588         select SWAP_IO_SPACE
 589
 590 config MIPS_PB1100
 591         bool "PB1100 board"
 592         depends on SOC_AU1100
 593         select DMA_NONCOHERENT
 594         select HW_HAS_PCI
 595         select SWAP_IO_SPACE
 596
 597 config MIPS_PB1500
 598         bool "PB1500 board"
 599         depends on SOC_AU1500
 600         select DMA_COHERENT
 601         select HW_HAS_PCI
 602
 603 config MIPS_PB1550
 604         bool "PB1550 board"
 605         depends on SOC_AU1550
 606         select DMA_COHERENT
 607         select HW_HAS_PCI
 608         select MIPS_DISABLE_OBSOLETE_IDE
 609
 610 config MIPS_DB1000
 611         bool "DB1000 board"
 612         depends on SOC_AU1000
 613         select DMA_NONCOHERENT
 614         select HW_HAS_PCI
 615
 616 config MIPS_DB1100
 617         bool "DB1100 board"
 618         depends on SOC_AU1100
 619         select DMA_NONCOHERENT
 620
 621 config MIPS_DB1500
 622         bool "DB1500 board"
 623         depends on SOC_AU1500
 624         select DMA_COHERENT
 625         select HW_HAS_PCI
 626         select MIPS_DISABLE_OBSOLETE_IDE
 627
 628 config MIPS_DB1550
 629         bool "DB1550 board"
 630         depends on SOC_AU1550
 631         select HW_HAS_PCI
 632         select DMA_COHERENT
 633         select MIPS_DISABLE_OBSOLETE_IDE
 634
 635 config MIPS_BOSPORUS
 636         bool "Bosporus board"
 637         depends on SOC_AU1500
 638         select DMA_NONCOHERENT
 639
 640 config MIPS_MIRAGE
 641         bool "Mirage board"
 642         depends on SOC_AU1500
 643         select DMA_NONCOHERENT
 644
 645 config MIPS_XXS1500
 646         bool "MyCable XXS1500 board"
 647         depends on SOC_AU1500
 648         select DMA_NONCOHERENT
 649
 650 config MIPS_MTX1
 651         bool "4G Systems MTX-1 board"
 652         depends on SOC_AU1500
 653         select HW_HAS_PCI
 654         select DMA_NONCOHERENT
 655
 656 endchoice
 657
 658 config SIBYTE_SB1xxx_SOC
 659         bool "Support for Broadcom BCM1xxx SOCs (EXPERIMENTAL)"
 660         depends on EXPERIMENTAL
 661         select BOOT_ELF32
 662         select DMA_COHERENT
 663         select SWAP_IO_SPACE
 664
 665 choice
 666         prompt "BCM1xxx SOC-based board"
 667         depends on SIBYTE_SB1xxx_SOC
 668         default SIBYTE_SWARM
 669         help
 670           Enable support for boards based on the SiByte line of SOCs
 671           from Broadcom.  There are configurations for the known
 672           evaluation boards, or you can choose "Other" and add your
 673           own board support code.
 674
 675 config SIBYTE_SWARM
 676         bool "BCM91250A-SWARM"
 677         select SIBYTE_SB1250
 678
 679 config SIBYTE_SENTOSA
 680         bool "BCM91250E-Sentosa"
 681         select SIBYTE_SB1250
 682
 683 config SIBYTE_RHONE
 684         bool "BCM91125E-Rhone"
 685         select SIBYTE_BCM1125H
 686
 687 config SIBYTE_CARMEL
 688         bool "BCM91120x-Carmel"
 689         select SIBYTE_BCM1120
 690
 691 config SIBYTE_PTSWARM
 692         bool "BCM91250PT-PTSWARM"
 693         select SIBYTE_SB1250
 694
 695 config SIBYTE_LITTLESUR
 696         bool "BCM91250C2-LittleSur"
 697         select SIBYTE_SB1250
 698
 699 config SIBYTE_CRHINE
 700         bool "BCM91120C-CRhine"
 701         select SIBYTE_BCM1120
 702
 703 config SIBYTE_CRHONE
 704         bool "BCM91125C-CRhone"
 705         select SIBYTE_BCM1125
 706
 707 config SIBYTE_UNKNOWN
 708         bool "Other"
 709
 710 endchoice
 711
 712 config SIBYTE_BOARD
 713         bool
 714         depends on SIBYTE_SB1xxx_SOC && !SIBYTE_UNKNOWN
 715         default y
 716
 717 choice
 718         prompt "BCM1xxx SOC Type"
 719         depends on SIBYTE_UNKNOWN
 720         default SIBYTE_UNK_BCM1250
 721         help
 722           Since you haven't chosen a known evaluation board from
 723           Broadcom, you must explicitly pick the SOC this kernel is
 724           targetted for.
 725
 726 config SIBYTE_UNK_BCM1250
 727         bool "BCM1250"
 728         select SIBYTE_SB1250
 729
 730 config SIBYTE_UNK_BCM1120
 731         bool "BCM1120"
 732         select SIBYTE_BCM1120
 733
 734 config SIBYTE_UNK_BCM1125
 735         bool "BCM1125"
 736         select SIBYTE_BCM1125
 737
 738 config SIBYTE_UNK_BCM1125H
 739         bool "BCM1125H"
 740         select SIBYTE_BCM1125H
 741
 742 endchoice
 743
 744 config SIBYTE_SB1250
 745         bool
 746         select HW_HAS_PCI
 747
 748 config SIBYTE_BCM1120
 749         bool
 750         select SIBYTE_BCM112X
 751
 752 config SIBYTE_BCM1125
 753         bool
 754         select HW_HAS_PCI
 755         select SIBYTE_BCM112X
 756
 757 config SIBYTE_BCM1125H
 758         bool
 759         select HW_HAS_PCI
 760         select SIBYTE_BCM112X
 761
 762 config SIBYTE_BCM112X
 763         bool
 764
 765 choice
 766         prompt "SiByte SOC Stepping"
 767         depends on SIBYTE_SB1xxx_SOC
 768
 769 config CPU_SB1_PASS_1
 770         bool "1250 Pass1"
 771         depends on SIBYTE_SB1250
 772         select CPU_HAS_PREFETCH
 773
 774 config CPU_SB1_PASS_2_1250
 775         bool "1250 An"
 776         depends on SIBYTE_SB1250
 777         select CPU_SB1_PASS_2
 778         help
 779           Also called BCM1250 Pass 2
 780
 781 config CPU_SB1_PASS_2_2
 782         bool "1250 Bn"
 783         depends on SIBYTE_SB1250
 784         select CPU_HAS_PREFETCH
 785         help
 786           Also called BCM1250 Pass 2.2
 787
 788 config CPU_SB1_PASS_4
 789         bool "1250 Cn"
 790         depends on SIBYTE_SB1250
 791         select CPU_HAS_PREFETCH
 792         help
 793           Also called BCM1250 Pass 3
 794
 795 config CPU_SB1_PASS_2_112x
 796         bool "112x Hybrid"
 797         depends on SIBYTE_BCM112X
 798         select CPU_SB1_PASS_2
 799
 800 config CPU_SB1_PASS_3
 801         bool "112x An"
 802         depends on SIBYTE_BCM112X
 803         select CPU_HAS_PREFETCH
 804
 805 endchoice
 806
 807 config CPU_SB1_PASS_2
 808         bool
 809
 810 config SIBYTE_HAS_LDT
 811         bool
 812         depends on PCI && (SIBYTE_SB1250 || SIBYTE_BCM1125H)
 813         default y
 814
 815 config SIMULATION
 816         bool "Running under simulation"
 817         depends on SIBYTE_SB1xxx_SOC
 818         help
 819           Build a kernel suitable for running under the GDB simulator.
 820           Primarily adjusts the kernel's notion of time.
 821
 822 config SIBYTE_CFE
 823         bool "Booting from CFE"
 824         depends on SIBYTE_SB1xxx_SOC
 825         help
 826           Make use of the CFE API for enumerating available memory,
 827           controlling secondary CPUs, and possibly console output.
 828
 829 config SIBYTE_CFE_CONSOLE
 830         bool "Use firmware console"
 831         depends on SIBYTE_CFE
 832         help
 833           Use the CFE API's console write routines during boot.  Other console
 834           options (VT console, sb1250 duart console, etc.) should not be
 835           configured.
 836
 837 config SIBYTE_STANDALONE
 838         bool
 839         depends on SIBYTE_SB1xxx_SOC && !SIBYTE_CFE
 840         default y
 841
 842 config SIBYTE_STANDALONE_RAM_SIZE
 843         int "Memory size (in megabytes)"
 844         depends on SIBYTE_STANDALONE
 845         default "32"
 846
 847 config SIBYTE_BUS_WATCHER
 848         bool "Support for Bus Watcher statistics"
 849         depends on SIBYTE_SB1xxx_SOC
 850         help
 851           Handle and keep statistics on the bus error interrupts (COR_ECC,
 852           BAD_ECC, IO_BUS).
 853
 854 config SIBYTE_BW_TRACE
 855         bool "Capture bus trace before bus error"
 856         depends on SIBYTE_BUS_WATCHER
 857         help
 858           Run a continuous bus trace, dumping the raw data as soon as
 859           a ZBbus error is detected.  Cannot work if ZBbus profiling
 860           is turned on, and also will interfere with JTAG-based trace
 861           buffer activity.  Raw buffer data is dumped to console, and
 862           must be processed off-line.
 863
 864 config SIBYTE_SB1250_PROF
 865         bool "Support for SB1/SOC profiling - SB1/SCD perf counters"
 866         depends on SIBYTE_SB1xxx_SOC
 867
 868 config SIBYTE_TBPROF
 869         bool "Support for ZBbus profiling"
 870         depends on SIBYTE_SB1xxx_SOC
 871
 872 config SNI_RM200_PCI
 873         bool "Support for SNI RM200 PCI"
 874         select ARC
 875         select ARC32
 876         select BOOT_ELF32
 877         select DMA_NONCOHERENT
 878         select GENERIC_ISA_DMA
 879         select HAVE_STD_PC_SERIAL_PORT
 880         select HW_HAS_PCI
 881         select I8259
 882         select ISA
 883         help
 884           The SNI RM200 PCI was a MIPS-based platform manufactured by Siemens
 885           Nixdorf Informationssysteme (SNI), parent company of Pyramid
 886           Technology and now in turn merged with Fujitsu.  Say Y here to
 887           support this machine type.
 888
 889 config TOSHIBA_RBTX4927
 890         bool "Support for Toshiba TBTX49[23]7 board"
 891         depends on MIPS32
 892         select DMA_NONCOHERENT
 893         select HAS_TXX9_SERIAL
 894         select HW_HAS_PCI
 895         select I8259
 896         select ISA
 897         select SWAP_IO_SPACE
 898         help
 899           This Toshiba board is based on the TX4927 processor. Say Y here to
 900           support this machine type
 901
 902 config TOSHIBA_FPCIB0
 903         bool "FPCIB0 Backplane Support"
 904         depends on TOSHIBA_RBTX4927
 905
 906 config RWSEM_GENERIC_SPINLOCK
 907         bool
 908         default y
 909
 910 config RWSEM_XCHGADD_ALGORITHM
 911         bool
 912
 913 config GENERIC_CALIBRATE_DELAY
 914         bool
 915         default y
 916
 917 config HAVE_DEC_LOCK
 918         bool
 919         default y
 920
 921 #
 922 # Select some configuration options automatically based on user selections.
 923 #
 924 config ARC
 925         bool
 926         depends on SNI_RM200_PCI || SGI_IP32 || SGI_IP27 || SGI_IP22 || MIPS_MAGNUM_4000 || OLIVETTI_M700 || ACER_PICA_61
 927         default y
 928
 929 config  DMA_COHERENT
 930         bool
 931
 932 config  DMA_IP27
 933         bool
 934
 935 config  DMA_NONCOHERENT
 936         bool
 937
 938 config EARLY_PRINTK
 939         bool
 940         depends on MACH_DECSTATION
 941         default y
 942
 943 config GENERIC_ISA_DMA
 944         bool
 945         depends on SNI_RM200_PCI || MIPS_MAGNUM_4000 || OLIVETTI_M700 || ACER_PICA_61 || MIPS_MALTA
 946         default y
 947
 948 config I8259
 949         bool
 950         depends on SNI_RM200_PCI || DDB5477 || DDB5476 || DDB5074 || MACH_JAZZ || MIPS_MALTA || MIPS_COBALT
 951         default y
 952
 953 config LIMITED_DMA
 954         bool
 955         select HIGHMEM
 956
 957 config MIPS_BONITO64
 958         bool
 959         depends on MIPS_ATLAS || MIPS_MALTA
 960         default y
 961
 962 config MIPS_MSC
 963         bool
 964         depends on MIPS_ATLAS || MIPS_MALTA
 965         default y
 966
 967 config MIPS_NILE4
 968         bool
 969         depends on LASAT
 970         default y
 971
 972 config MIPS_DISABLE_OBSOLETE_IDE
 973         bool
 974
 975 config CPU_LITTLE_ENDIAN
 976         bool "Generate little endian code"
 977         default y if ACER_PICA_61 || CASIO_E55 || DDB5074 || DDB5476 || DDB5477 || MACH_DECSTATION || IBM_WORKPAD || LASAT || MIPS_COBALT || MIPS_ITE8172 || MIPS_IVR || SOC_AU1X00 || NEC_OSPREY || OLIVETTI_M700 || SNI_RM200_PCI || VICTOR_MPC30X || ZAO_CAPCELLA
 978         default n if MIPS_EV64120 || MIPS_EV96100 || MOMENCO_OCELOT || MOMENCO_OCELOT_G || SGI_IP22 || SGI_IP27 || SGI_IP32 || TOSHIBA_JMR3927
 979         help
 980           Some MIPS machines can be configured for either little or big endian
 981           byte order. These modes require different kernels. Say Y if your
 982           machine is little endian, N if it's a big endian machine.
 983
 984 config IRQ_CPU
 985         bool
 986
 987 config IRQ_CPU_RM7K
 988         bool
 989
 990 config IRQ_MV64340
 991         bool
 992
 993 config DDB5XXX_COMMON
 994         bool
 995         depends on DDB5074 || DDB5476 || DDB5477
 996         default y
 997
 998 config MIPS_BOARDS_GEN
 999         bool
1000         depends on MIPS_ATLAS || MIPS_MALTA || MIPS_SEAD
1001         default y
1002
1003 config MIPS_GT64111
1004         bool
1005         depends on MIPS_COBALT
1006         default y
1007
1008 config MIPS_GT64120
1009         bool
1010         depends on MIPS_EV64120 || MIPS_EV96100 || LASAT || MIPS_ATLAS || MIPS_MALTA || MOMENCO_OCELOT
1011         default y
1012
1013 config MIPS_TX3927
1014         bool
1015         depends on TOSHIBA_JMR3927
1016         select HAS_TXX9_SERIAL
1017         default y
1018
1019 config PCI_MARVELL
1020         bool
1021
1022 config ITE_BOARD_GEN
1023         bool
1024         depends on MIPS_IVR || MIPS_ITE8172
1025         default y
1026
1027 config SWAP_IO_SPACE
1028         bool
1029
1030 #
1031 # Unfortunately not all GT64120 systems run the chip at the same clock.
1032 # As the user for the clock rate and try to minimize the available options.
1033 #
1034 choice
1035         prompt "Galileo Chip Clock"
1036         #default SYSCLK_83 if MIPS_EV64120
1037         depends on MIPS_EV64120 || MOMENCO_OCELOT || MOMENCO_OCELOT_G
1038         default SYSCLK_83 if MIPS_EV64120
1039         default SYSCLK_100 if MOMENCO_OCELOT || MOMENCO_OCELOT_G
1040
1041 config SYSCLK_75
1042         bool "75" if MIPS_EV64120
1043
1044 config SYSCLK_83
1045         bool "83.3" if MIPS_EV64120
1046
1047 config SYSCLK_100
1048         bool "100" if MIPS_EV64120 || MOMENCO_OCELOT || MOMENCO_OCELOT_G
1049
1050 endchoice
1051
1052 config AU1X00_USB_DEVICE
1053         bool
1054         depends on MIPS_PB1500 || MIPS_PB1100 || MIPS_PB1000
1055         default n
1056
1057 config MIPS_GT96100
1058         bool
1059         depends on MIPS_EV96100
1060         default y
1061         help
1062           Say Y here to support the Galileo Technology GT96100 communications
1063           controller card.  There is a web page at <http://www.galileot.com/>.
1064
1065 config IT8172_CIR
1066         bool
1067         depends on MIPS_ITE8172 || MIPS_IVR
1068         default y
1069
1070 config IT8712
1071         bool
1072         depends on MIPS_ITE8172
1073         default y
1074
1075 config BOOT_ELF32
1076         bool
1077         depends on MACH_DECSTATION || MIPS_ATLAS || MIPS_MALTA || MOMENCO_JAGUAR_ATX || MOMENCO_OCELOT_3 || SIBYTE_SB1xxx_SOC || SGI_IP32 || SGI_IP22 || SNI_RM200_PCI
1078         default y
1079
1080 config MIPS_L1_CACHE_SHIFT
1081         int
1082         default "4" if MACH_DECSTATION
1083         default "7" if SGI_IP27
1084         default "5"
1085
1086 config ARC32
1087         bool
1088         depends on MACH_JAZZ || SNI_RM200_PCI || SGI_IP22 || SGI_IP32
1089         default y
1090
1091 config FB
1092         bool
1093         depends on MIPS_MAGNUM_4000 || OLIVETTI_M700
1094         default y
1095         ---help---
1096           The frame buffer device provides an abstraction for the graphics
1097           hardware. It represents the frame buffer of some video hardware and
1098           allows application software to access the graphics hardware through
1099           a well-defined interface, so the software doesn't need to know
1100           anything about the low-level (hardware register) stuff.
1101
1102           Frame buffer devices work identically across the different
1103           architectures supported by Linux and make the implementation of
1104           application programs easier and more portable; at this point, an X
1105           server exists which uses the frame buffer device exclusively.
1106           On several non-X86 architectures, the frame buffer device is the
1107           only way to use the graphics hardware.
1108
1109           The device is accessed through special device nodes, usually located
1110           in the /dev directory, i.e. /dev/fb*.
1111
1112           You need an utility program called fbset to make full use of frame
1113           buffer devices. Please read <file:Documentation/fb/framebuffer.txt>
1114           and the Framebuffer-HOWTO at <http://www.tldp.org/docs.html#howto>
1115           for more information.
1116
1117           Say Y here and to the driver for your graphics board below if you
1118           are compiling a kernel for a non-x86 architecture.
1119
1120           If you are compiling for the x86 architecture, you can say Y if you
1121           want to play with it, but it is not essential. Please note that
1122           running graphical applications that directly touch the hardware
1123           (e.g. an accelerated X server) and that are not frame buffer
1124           device-aware may cause unexpected results. If unsure, say N.
1125
1126 config HAVE_STD_PC_SERIAL_PORT
1127         bool
1128
1129 config VR4181
1130         bool
1131         depends on NEC_OSPREY
1132         default y
1133
1134 config ARC_CONSOLE
1135         bool "ARC console support"
1136         depends on SGI_IP22 || SNI_RM200_PCI
1137
1138 config ARC_MEMORY
1139         bool
1140         depends on MACH_JAZZ || SNI_RM200_PCI || SGI_IP32
1141         default y
1142
1143 config ARC_PROMLIB
1144         bool
1145         depends on MACH_JAZZ || SNI_RM200_PCI || SGI_IP22 || SGI_IP32
1146         default y
1147
1148 config ARC64
1149         bool
1150         depends on SGI_IP27
1151         default y
1152
1153 config BOOT_ELF64
1154         bool
1155         depends on SGI_IP27
1156         default y
1157
1158 #config MAPPED_PCI_IO y
1159 #       bool
1160 #       depends on SGI_IP27
1161 #       default y
1162
1163 config QL_ISP_A64
1164         bool
1165         depends on SGI_IP27
1166         default y
1167
1168 config TOSHIBA_BOARDS
1169         bool
1170         depends on TOSHIBA_JMR3927 || TOSHIBA_RBTX4927
1171         default y
1172
1173 endmenu
1174
1175 menu "CPU selection"
1176
1177 choice
1178         prompt "CPU type"
1179         default CPU_R4X00
1180
1181 config CPU_MIPS32
1182         bool "MIPS32"
1183
1184 config CPU_MIPS64
1185         bool "MIPS64"
1186
1187 config CPU_R3000
1188         bool "R3000"
1189         depends on MIPS32
1190         help
1191           Please make sure to pick the right CPU type. Linux/MIPS is not
1192           designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1193           *not* work on R4000 machines and vice versa.  However, since most
1194           of the supported machines have an R4000 (or similar) CPU, R4x00
1195           might be a safe bet.  If the resulting kernel does not work,
1196           try to recompile with R3000.
1197
1198 config CPU_TX39XX
1199         bool "R39XX"
1200         depends on MIPS32
1201
1202 config CPU_VR41XX
1203         bool "R41xx"
1204         help
1205           The options selects support for the NEC VR41xx series of processors.
1206           Only choose this option if you have one of these processors as a
1207           kernel built with this option will not run on any other type of
1208           processor or vice versa.
1209
1210 config CPU_R4300
1211         bool "R4300"
1212         help
1213           MIPS Technologies R4300-series processors.
1214
1215 config CPU_R4X00
1216         bool "R4x00"
1217         help
1218           MIPS Technologies R4000-series processors other than 4300, including
1219           the R4000, R4400, R4600, and 4700.
1220
1221 config CPU_TX49XX
1222         bool "R49XX"
1223
1224 config CPU_R5000
1225         bool "R5000"
1226         help
1227           MIPS Technologies R5000-series processors other than the Nevada.
1228
1229 config CPU_R5432
1230         bool "R5432"
1231
1232 config CPU_R6000
1233         bool "R6000"
1234         depends on MIPS32 && EXPERIMENTAL
1235         help
1236           MIPS Technologies R6000 and R6000A series processors.  Note these
1237           processors are extremly rare and the support for them is incomplete.
1238
1239 config CPU_NEVADA
1240         bool "RM52xx"
1241         help
1242           QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1243
1244 config CPU_R8000
1245         bool "R8000"
1246         depends on MIPS64 && EXPERIMENTAL
1247         help
1248           MIPS Technologies R8000 processors.  Note these processors are
1249           uncommon and the support for them is incomplete.
1250
1251 config CPU_R10000
1252         bool "R10000"
1253         help
1254           MIPS Technologies R10000-series processors.
1255
1256 config CPU_RM7000
1257         bool "RM7000"
1258
1259 config CPU_RM9000
1260         bool "RM9000"
1261
1262 config CPU_SB1
1263         bool "SB1"
1264
1265 endchoice
1266
1267 choice
1268         prompt "Kernel page size"
1269         default PAGE_SIZE_4KB
1270
1271 config PAGE_SIZE_4KB
1272         bool "4kB"
1273         help
1274          This option select the standard 4kB Linux page size.  On some
1275          R3000-family processors this is the only available page size.  Using
1276          4kB page size will minimize memory consumption and is therefore
1277          recommended for low memory systems.
1278
1279 config PAGE_SIZE_8KB
1280         bool "8kB"
1281         depends on EXPERIMENTAL && CPU_R8000
1282         help
1283           Using 8kB page size will result in higher performance kernel at
1284           the price of higher memory consumption.  This option is available
1285           only on the R8000 processor.  Not that at the time of this writing
1286           this option is still high experimental; there are also issues with
1287           compatibility of user applications.
1288
1289 config PAGE_SIZE_16KB
1290         bool "16kB"
1291         depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1292         help
1293           Using 16kB page size will result in higher performance kernel at
1294           the price of higher memory consumption.  This option is available on
1295           all non-R3000 family processor.  Not that at the time of this
1296           writing this option is still high experimental; there are also
1297           issues with compatibility of user applications.
1298
1299 config PAGE_SIZE_64KB
1300         bool "64kB"
1301         depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX
1302         help
1303           Using 64kB page size will result in higher performance kernel at
1304           the price of higher memory consumption.  This option is available on
1305           all non-R3000 family processor.  Not that at the time of this
1306           writing this option is still high experimental; there are also
1307           issues with compatibility of user applications.
1308
1309 endchoice
1310
1311 config BOARD_SCACHE
1312         bool
1313
1314 config IP22_CPU_SCACHE
1315         bool
1316         select BOARD_SCACHE
1317
1318 config R5000_CPU_SCACHE
1319         bool
1320         select BOARD_SCACHE
1321
1322 config RM7000_CPU_SCACHE
1323         bool
1324         select BOARD_SCACHE
1325
1326 config SIBYTE_DMA_PAGEOPS
1327         bool "Use DMA to clear/copy pages"
1328         depends on CPU_SB1
1329         help
1330           Instead of using the CPU to zero and copy pages, use a Data Mover
1331           channel.  These DMA channels are otherwise unused by the standard
1332           SiByte Linux port.  Seems to give a small performance benefit.
1333
1334 config CPU_HAS_PREFETCH
1335         bool "Enable prefetches" if CPU_SB1 && !CPU_SB1_PASS_2
1336         default y if CPU_MIPS32 || CPU_MIPS64 || CPU_RM7000 || CPU_RM9000 || CPU_R10000
1337
1338 config VTAG_ICACHE
1339         bool "Support for Virtual Tagged I-cache" if CPU_MIPS64 || CPU_MIPS32
1340         default y if CPU_SB1
1341
1342 config SB1_PASS_1_WORKAROUNDS
1343         bool
1344         depends on CPU_SB1_PASS_1
1345         default y
1346
1347 config SB1_PASS_2_WORKAROUNDS
1348         bool
1349         depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
1350         default y
1351
1352 config SB1_PASS_2_1_WORKAROUNDS
1353         bool
1354         depends on CPU_SB1 && CPU_SB1_PASS_2
1355         default y
1356
1357 config 64BIT_PHYS_ADDR
1358         bool "Support for 64-bit physical address space"
1359         depends on (CPU_R4X00 || CPU_R5000 || CPU_RM7000 || CPU_RM9000 || CPU_R10000 || CPU_SB1 || CPU_MIPS32 || CPU_MIPS64) && MIPS32
1360
1361 config CPU_ADVANCED
1362         bool "Override CPU Options"
1363         depends on MIPS32
1364         help
1365           Saying yes here allows you to select support for various features
1366           your CPU may or may not have.  Most people should say N here.
1367
1368 config CPU_HAS_LLSC
1369         bool "ll/sc Instructions available" if CPU_ADVANCED
1370         default y if !CPU_ADVANCED && !CPU_R3000 && !CPU_VR41XX && !CPU_TX39XX
1371         help
1372           MIPS R4000 series and later provide the Load Linked (ll)
1373           and Store Conditional (sc) instructions. More information is
1374           available at <http://www.go-ecs.com/mips/miptek1.htm>.
1375
1376           Say Y here if your CPU has the ll and sc instructions.  Say Y here
1377           for better performance, N if you don't know.  You must say Y here
1378           for multiprocessor machines.
1379
1380 config CPU_HAS_LLDSCD
1381         bool "lld/scd Instructions available" if CPU_ADVANCED
1382         default y if !CPU_ADVANCED && !CPU_R3000 && !CPU_VR41XX && !CPU_TX39XX && !CPU_MIPS32
1383         help
1384           Say Y here if your CPU has the lld and scd instructions, the 64-bit
1385           equivalents of ll and sc.  Say Y here for better performance, N if
1386           you don't know.  You must say Y here for multiprocessor machines.
1387
1388 config CPU_HAS_WB
1389         bool "Writeback Buffer available" if CPU_ADVANCED
1390         default y if !CPU_ADVANCED && CPU_R3000 && MACH_DECSTATION
1391         help
1392           Say N here for slightly better performance.  You must say Y here for
1393           machines which require flushing of write buffers in software.  Saying
1394           Y is the safe option; N may result in kernel malfunction and crashes.
1395
1396 config CPU_HAS_SYNC
1397         bool
1398         depends on !CPU_R3000
1399         default y
1400
1401 #
1402 # - Highmem only makes sense for the 32-bit kernel.
1403 # - The current highmem code will only work properly on physically indexed
1404 #   caches such as R3000, SB1, R7000 or those that look like they're virtually
1405 #   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
1406 #   moment we protect the user and offer the highmem option only on machines
1407 #   where it's known to be safe.  This will not offer highmem on a few systems
1408 #   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
1409 #   indexed CPUs but we're playing safe.
1410 # - We should not offer highmem for system of which we already know that they
1411 #   don't have memory configurations that could gain from highmem support in
1412 #   the kernel because they don't support configurations with RAM at physical
1413 #   addresses > 0x20000000.
1414 #
1415 config HIGHMEM
1416         bool "High Memory Support"
1417         depends on MIPS32 && (CPU_R3000 || CPU_SB1 || CPU_R7000 || CPU_RM9000 || CPU_R10000) && !(MACH_DECSTATION || MOMENCO_JAGUAR_ATX)
1418
1419 config SMP
1420         bool "Multi-Processing support"
1421         depends on CPU_RM9000 || (SIBYTE_SB1250 && !SIBYTE_STANDALONE) || SGI_IP27
1422         ---help---
1423           This enables support for systems with more than one CPU. If you have
1424           a system with only one CPU, like most personal computers, say N. If
1425           you have a system with more than one CPU, say Y.
1426
1427           If you say N here, the kernel will run on single and multiprocessor
1428           machines, but will use only one CPU of a multiprocessor machine. If
1429           you say Y here, the kernel will run on many, but not all,
1430           singleprocessor machines. On a singleprocessor machine, the kernel
1431           will run faster if you say N here.
1432
1433           People using multiprocessor machines who say Y here should also say
1434           Y to "Enhanced Real Time Clock Support", below.
1435
1436           See also the <file:Documentation/smp.txt> and the SMP-HOWTO
1437           available at <http://www.tldp.org/docs.html#howto>.
1438
1439           If you don't know what to do here, say N.
1440
1441 config NR_CPUS
1442         int "Maximum number of CPUs (2-64)"
1443         range 2 64
1444         depends on SMP
1445         default "64" if SGI_IP27
1446         default "2"
1447         help
1448           This allows you to specify the maximum number of CPUs which this
1449           kernel will support.  The maximum supported value is 32 for 32-bit
1450           kernel and 64 for 64-bit kernels; the minimum value which makes
1451           sense is 2.
1452
1453           This is purely to save memory - each supported CPU adds
1454           approximately eight kilobytes to the kernel image.
1455
1456 config PREEMPT
1457         bool "Preemptible Kernel"
1458         help
1459           This option reduces the latency of the kernel when reacting to
1460           real-time or interactive events by allowing a low priority process to
1461           be preempted even if it is in kernel mode executing a system call.
1462           This allows applications to run more reliably even when the system is
1463           under load.
1464
1465 config RTC_DS1742
1466         bool "DS1742 BRAM/RTC support"
1467         depends on TOSHIBA_JMR3927 || TOSHIBA_RBTX4927
1468
1469 config MIPS_INSANE_LARGE
1470         bool "Support for large 64-bit configurations"
1471         depends on CPU_R10000 && MIPS64
1472         help
1473           MIPS R10000 does support a 44 bit / 16TB address space as opposed to
1474           previous 64-bit processors which only supported 40 bit / 1TB. If you
1475           need processes of more than 1TB virtual address space, say Y here.
1476           This will result in additional memory usage, so it is not
1477           recommended for normal users.
1478
1479 config RWSEM_GENERIC_SPINLOCK
1480         bool
1481         default y
1482
1483 endmenu
1484
1485 menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
1486
1487 config HW_HAS_PCI
1488         bool
1489
1490 config PCI
1491         bool "Support for PCI controller"
1492         depends on HW_HAS_PCI
1493         help
1494           Find out whether you have a PCI motherboard. PCI is the name of a
1495           bus system, i.e. the way the CPU talks to the other stuff inside
1496           your box. Other bus systems are ISA, EISA, or VESA. If you have PCI,
1497           say Y, otherwise N.
1498
1499           The PCI-HOWTO, available from
1500           <http://www.tldp.org/docs.html#howto>, contains valuable
1501           information about which PCI hardware does work under Linux and which
1502           doesn't.
1503
1504 config PCI_DOMAINS
1505         bool
1506         depends on PCI
1507
1508 source "drivers/pci/Kconfig"
1509
1510 #
1511 # ISA support is now enabled via select.  Too many systems still have the one
1512 # or other ISA chip on the board that users don't know about so don't expect
1513 # users to choose the right thing ...
1514 #
1515 config ISA
1516         bool
1517
1518 config EISA
1519         bool "EISA support"
1520         depends on SGI_IP22 || SNI_RM200_PCI
1521         select ISA
1522         ---help---
1523           The Extended Industry Standard Architecture (EISA) bus was
1524           developed as an open alternative to the IBM MicroChannel bus.
1525
1526           The EISA bus provided some of the features of the IBM MicroChannel
1527           bus while maintaining backward compatibility with cards made for
1528           the older ISA bus.  The EISA bus saw limited use between 1988 and
1529           1995 when it was made obsolete by the PCI bus.
1530
1531           Say Y here if you are building a kernel for an EISA-based machine.
1532
1533           Otherwise, say N.
1534
1535 source "drivers/eisa/Kconfig"
1536
1537 config TC
1538         bool "TURBOchannel support"
1539         depends on MACH_DECSTATION
1540         help
1541           TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
1542           processors.  Documentation on writing device drivers for TurboChannel
1543           is available at:
1544           <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>.
1545
1546 #config ACCESSBUS
1547 #       bool "Access.Bus support"
1548 #       depends on TC
1549
1550 config MMU
1551         bool
1552         default y
1553
1554 config MCA
1555         bool
1556
1557 config SBUS
1558         bool
1559
1560 source "drivers/pcmcia/Kconfig"
1561
1562 source "drivers/pci/hotplug/Kconfig"
1563
1564 endmenu
1565
1566 menu "Executable file formats"
1567
1568 source "fs/Kconfig.binfmt"
1569
1570 config TRAD_SIGNALS
1571         bool
1572         default y if MIPS32
1573
1574 config BUILD_ELF64
1575         bool "Use 64-bit ELF format for building"
1576         depends on MIPS64
1577         help
1578           A 64-bit kernel is usually built using the 64-bit ELF binary object
1579           format as it's one that allows arbitrary 64-bit constructs.  For
1580           kernels that are loaded within the KSEG compatibility segments the
1581           32-bit ELF format can optionally be used resulting in a somewhat
1582           smaller binary, but this option is not explicitly supported by the
1583           toolchain and since binutils 2.14 it does not even work at all.
1584
1585           Say Y to use the 64-bit format or N to use the 32-bit one.
1586
1587           If unsure say Y.
1588
1589 config BINFMT_IRIX
1590         bool "Include IRIX binary compatibility"
1591         depends on !CPU_LITTLE_ENDIAN && MIPS32 && BROKEN
1592
1593 config MIPS32_COMPAT
1594         bool "Kernel support for Linux/MIPS 32-bit binary compatibility"
1595         depends on MIPS64
1596         help
1597           Select this option if you want Linux/MIPS 32-bit binary
1598           compatibility. Since all software available for Linux/MIPS is
1599           currently 32-bit you should say Y here.
1600
1601 config COMPAT
1602         bool
1603         depends on MIPS32_COMPAT
1604         default y
1605
1606 config MIPS32_O32
1607         bool "Kernel support for o32 binaries"
1608         depends on MIPS32_COMPAT
1609         help
1610           Select this option if you want to run o32 binaries.  These are pure
1611           32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
1612           existing binaries are in this format.
1613
1614           If unsure, say Y.
1615
1616 config MIPS32_N32
1617         bool "Kernel support for n32 binaries"
1618         depends on MIPS32_COMPAT
1619         help
1620           Select this option if you want to run n32 binaries.  These are
1621           64-bit binaries using 32-bit quantities for addressing and certain
1622           data that would normally be 64-bit.  They are used in special
1623           cases.
1624
1625           If unsure, say N.
1626
1627 config BINFMT_ELF32
1628         bool
1629         default y if MIPS32_O32 || MIPS32_N32
1630
1631 config PM
1632         bool "Power Management support (EXPERIMENTAL)"
1633         depends on EXPERIMENTAL && MACH_AU1X00
1634
1635 endmenu
1636
1637 source "drivers/Kconfig"
1638
1639 source "fs/Kconfig"
1640
1641 source "arch/mips/Kconfig.debug"
1642
1643 source "security/Kconfig"
1644
1645 source "crypto/Kconfig"
1646
1647 source "lib/Kconfig"
1648
1649 #
1650 # Use the generic interrupt handling code in kernel/irq/:
1651 #
1652 config GENERIC_HARDIRQS
1653         bool
1654         default y
1655
1656 config GENERIC_IRQ_PROBE
1657         bool
1658         default y