tjh.dev / kernel
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kernel / arch / mips / Kconfig
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1config MIPS 2 bool 3 default y 4 # Horrible source of confusion. Die, die, die ... 5 select EMBEDDED 6 7# shouldn't it be per-subarchitecture? 8config ARCH_MAY_HAVE_PC_FDC 9 bool 10 default y 11 12mainmenu "Linux/MIPS Kernel Configuration" 13 14source "init/Kconfig" 15 16config SYS_SUPPORTS_32BIT_KERNEL 17 bool 18config SYS_SUPPORTS_64BIT_KERNEL 19 bool 20config CPU_SUPPORTS_32BIT_KERNEL 21 bool 22config CPU_SUPPORTS_64BIT_KERNEL 23 bool 24 25menu "Kernel type" 26 27choice 28 29 prompt "Kernel code model" 30 help 31 You should only select this option if you have a workload that 32 actually benefits from 64-bit processing or if your machine has 33 large memory. You will only be presented a single option in this 34 menu if your system does not support both 32-bit and 64-bit kernels. 35 36config 32BIT 37 bool "32-bit kernel" 38 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 39 select TRAD_SIGNALS 40 help 41 Select this option if you want to build a 32-bit kernel. 42 43config 64BIT 44 bool "64-bit kernel" 45 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 46 help 47 Select this option if you want to build a 64-bit kernel. 48 49endchoice 50 51endmenu 52 53menu "Machine selection" 54 55config MACH_JAZZ 56 bool "Support for the Jazz family of machines" 57 select ARC 58 select ARC32 59 select GENERIC_ISA_DMA 60 select I8259 61 select ISA 62 select SYS_SUPPORTS_32BIT_KERNEL 63 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL 64 help 65 This a family of machines based on the MIPS R4030 chipset which was 66 used by several vendors to build RISC/os and Windows NT workstations. 67 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millenium and 68 Olivetti M700-10 workstations. 69 70config ACER_PICA_61 71 bool "Support for Acer PICA 1 chipset (EXPERIMENTAL)" 72 depends on MACH_JAZZ && EXPERIMENTAL 73 select DMA_NONCOHERENT 74 help 75 This is a machine with a R4400 133/150 MHz CPU. To compile a Linux 76 kernel that runs on these, say Y here. For details about Linux on 77 the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at 78 <http://www.linux-mips.org/>. 79 80config MIPS_MAGNUM_4000 81 bool "Support for MIPS Magnum 4000" 82 depends on MACH_JAZZ 83 select DMA_NONCOHERENT 84 help 85 This is a machine with a R4000 100 MHz CPU. To compile a Linux 86 kernel that runs on these, say Y here. For details about Linux on 87 the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at 88 <http://www.linux-mips.org/>. 89 90config OLIVETTI_M700 91 bool "Support for Olivetti M700-10" 92 depends on MACH_JAZZ 93 select DMA_NONCOHERENT 94 help 95 This is a machine with a R4000 100 MHz CPU. To compile a Linux 96 kernel that runs on these, say Y here. For details about Linux on 97 the MIPS architecture, check out the Linux/MIPS FAQ on the WWW at 98 <http://www.linux-mips.org/>. 99 100config MACH_VR41XX 101 bool "Support for NEC VR4100 series based machines" 102 select SYS_SUPPORTS_32BIT_KERNEL 103 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL 104 105config NEC_CMBVR4133 106 bool "Support for NEC CMB-VR4133" 107 depends on MACH_VR41XX 108 select CPU_VR41XX 109 select DMA_NONCOHERENT 110 select IRQ_CPU 111 select HW_HAS_PCI 112 113config ROCKHOPPER 114 bool "Support for Rockhopper baseboard" 115 depends on NEC_CMBVR4133 116 select I8259 117 select HAVE_STD_PC_SERIAL_PORT 118 119config CASIO_E55 120 bool "Support for CASIO CASSIOPEIA E-10/15/55/65" 121 depends on MACH_VR41XX 122 select CPU_LITTLE_ENDIAN 123 select DMA_NONCOHERENT 124 select IRQ_CPU 125 select ISA 126 127config IBM_WORKPAD 128 bool "Support for IBM WorkPad z50" 129 depends on MACH_VR41XX 130 select CPU_LITTLE_ENDIAN 131 select DMA_NONCOHERENT 132 select IRQ_CPU 133 select ISA 134 135config TANBAC_TB022X 136 bool "Support for TANBAC VR4131 multichip module and TANBAC VR4131DIMM" 137 depends on MACH_VR41XX 138 select CPU_LITTLE_ENDIAN 139 select DMA_NONCOHERENT 140 select IRQ_CPU 141 select HW_HAS_PCI 142 help 143 The TANBAC VR4131 multichip module(TB0225) and 144 the TANBAC VR4131DIMM(TB0229) are MIPS-based platforms 145 manufactured by TANBAC. 146 Please refer to <http://www.tanbac.co.jp/> 147 about VR4131 multichip module and VR4131DIMM. 148 149config TANBAC_TB0226 150 bool "Support for TANBAC Mbase(TB0226)" 151 depends on TANBAC_TB022X 152 select GPIO_VR41XX 153 help 154 The TANBAC Mbase(TB0226) is a MIPS-based platform manufactured by TANBAC. 155 Please refer to <http://www.tanbac.co.jp/> about Mbase. 156 157config TANBAC_TB0287 158 bool "Support for TANBAC Mini-ITX DIMM base(TB0287)" 159 depends on TANBAC_TB022X 160 help 161 The TANBAC Mini-ITX DIMM base(TB0287) is a MIPS-based platform manufactured by TANBAC. 162 Please refer to <http://www.tanbac.co.jp/> about Mini-ITX DIMM base. 163 164config VICTOR_MPC30X 165 bool "Support for Victor MP-C303/304" 166 depends on MACH_VR41XX 167 select CPU_LITTLE_ENDIAN 168 select DMA_NONCOHERENT 169 select IRQ_CPU 170 select HW_HAS_PCI 171 172config ZAO_CAPCELLA 173 bool "Support for ZAO Networks Capcella" 174 depends on MACH_VR41XX 175 select CPU_LITTLE_ENDIAN 176 select DMA_NONCOHERENT 177 select IRQ_CPU 178 select HW_HAS_PCI 179 180config PCI_VR41XX 181 bool "Add PCI control unit support of NEC VR4100 series" 182 depends on MACH_VR41XX && HW_HAS_PCI 183 default y 184 select PCI 185 186config VRC4173 187 tristate "Add NEC VRC4173 companion chip support" 188 depends on MACH_VR41XX && PCI_VR41XX 189 ---help--- 190 The NEC VRC4173 is a companion chip for NEC VR4122/VR4131. 191 192config TOSHIBA_JMR3927 193 bool "Support for Toshiba JMR-TX3927 board" 194 select DMA_NONCOHERENT 195 select HW_HAS_PCI 196 select SWAP_IO_SPACE 197 select SYS_SUPPORTS_32BIT_KERNEL 198 199config MIPS_COBALT 200 bool "Support for Cobalt Server" 201 depends on EXPERIMENTAL 202 select DMA_NONCOHERENT 203 select HW_HAS_PCI 204 select I8259 205 select IRQ_CPU 206 select SYS_SUPPORTS_32BIT_KERNEL 207 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL 208 209config MACH_DECSTATION 210 bool "Support for DECstations" 211 select BOOT_ELF32 212 select DMA_NONCOHERENT 213 select IRQ_CPU 214 select SYS_SUPPORTS_32BIT_KERNEL 215 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL 216 ---help--- 217 This enables support for DEC's MIPS based workstations. For details 218 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 219 DECstation porting pages on <http://decstation.unix-ag.org/>. 220 221 If you have one of the following DECstation Models you definitely 222 want to choose R4xx0 for the CPU Type: 223 224 DECstation 5000/50 225 DECstation 5000/150 226 DECstation 5000/260 227 DECsystem 5900/260 228 229 otherwise choose R3000. 230 231config MIPS_EV64120 232 bool "Support for Galileo EV64120 Evaluation board (EXPERIMENTAL)" 233 depends on EXPERIMENTAL 234 select DMA_NONCOHERENT 235 select HW_HAS_PCI 236 select MIPS_GT64120 237 select SYS_SUPPORTS_32BIT_KERNEL 238 select SYS_SUPPORTS_64BIT_KERNEL 239 help 240 This is an evaluation board based on the Galileo GT-64120 241 single-chip system controller that contains a MIPS R5000 compatible 242 core running at 75/100MHz. Their website is located at 243 <http://www.marvell.com/>. Say Y here if you wish to build a 244 kernel for this platform. 245 246config EVB_PCI1 247 bool "Enable Second PCI (PCI1)" 248 depends on MIPS_EV64120 249 250config MIPS_EV96100 251 bool "Support for Galileo EV96100 Evaluation board (EXPERIMENTAL)" 252 depends on EXPERIMENTAL 253 select DMA_NONCOHERENT 254 select HW_HAS_PCI 255 select IRQ_CPU 256 select MIPS_GT96100 257 select RM7000_CPU_SCACHE 258 select SWAP_IO_SPACE 259 select SYS_SUPPORTS_32BIT_KERNEL 260 select SYS_SUPPORTS_64BIT_KERNEL 261 help 262 This is an evaluation board based on the Galileo GT-96100 LAN/WAN 263 communications controllers containing a MIPS R5000 compatible core 264 running at 83MHz. Their website is <http://www.marvell.com/>. Say Y 265 here if you wish to build a kernel for this platform. 266 267config MIPS_IVR 268 bool "Support for Globespan IVR board" 269 select DMA_NONCOHERENT 270 select HW_HAS_PCI 271 select SYS_SUPPORTS_32BIT_KERNEL 272 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL 273 help 274 This is an evaluation board built by Globespan to showcase thir 275 iVR (Internet Video Recorder) design. It utilizes a QED RM5231 276 R5000 MIPS core. More information can be found out their website 277 located at <http://www.globespan.net/>. Say Y here if you wish to 278 build a kernel for this platform. 279 280config LASAT 281 bool "Support for LASAT Networks platforms" 282 select DMA_NONCOHERENT 283 select HW_HAS_PCI 284 select MIPS_GT64120 285 select R5000_CPU_SCACHE 286 select SYS_SUPPORTS_32BIT_KERNEL 287 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL 288 289config PICVUE 290 tristate "PICVUE LCD display driver" 291 depends on LASAT 292 293config PICVUE_PROC 294 tristate "PICVUE LCD display driver /proc interface" 295 depends on PICVUE 296 297config DS1603 298 bool "DS1603 RTC driver" 299 depends on LASAT 300 301config LASAT_SYSCTL 302 bool "LASAT sysctl interface" 303 depends on LASAT 304 305config MIPS_ITE8172 306 bool "Support for ITE 8172G board" 307 select DMA_NONCOHERENT 308 select HW_HAS_PCI 309 select SYS_SUPPORTS_32BIT_KERNEL 310 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL 311 help 312 Ths is an evaluation board made by ITE <http://www.ite.com.tw/> 313 with ATX form factor that utilizes a MIPS R5000 to work with its 314 ITE8172G companion internet appliance chip. The MIPS core can be 315 either a NEC Vr5432 or QED RM5231. Say Y here if you wish to build 316 a kernel for this platform. 317 318config IT8172_REVC 319 bool "Support for older IT8172 (Rev C)" 320 depends on MIPS_ITE8172 321 help 322 Say Y here to support the older, Revision C version of the Integrated 323 Technology Express, Inc. ITE8172 SBC. Vendor page at 324 <http://www.ite.com.tw/ia/brief_it8172bsp.htm>; picture of the 325 board at <http://www.mvista.com/partners/semiconductor/ite.html>. 326 327config MIPS_ATLAS 328 bool "Support for MIPS Atlas board" 329 select BOOT_ELF32 330 select DMA_NONCOHERENT 331 select HW_HAS_PCI 332 select MIPS_GT64120 333 select SWAP_IO_SPACE 334 select SYS_SUPPORTS_32BIT_KERNEL 335 select SYS_SUPPORTS_64BIT_KERNEL 336 help 337 This enables support for the QED R5231-based MIPS Atlas evaluation 338 board. 339 340config MIPS_MALTA 341 bool "Support for MIPS Malta board" 342 select BOOT_ELF32 343 select HAVE_STD_PC_SERIAL_PORT 344 select DMA_NONCOHERENT 345 select GENERIC_ISA_DMA 346 select HW_HAS_PCI 347 select I8259 348 select MIPS_GT64120 349 select SWAP_IO_SPACE 350 select SYS_SUPPORTS_32BIT_KERNEL 351 select SYS_SUPPORTS_64BIT_KERNEL 352 help 353 This enables support for the VR5000-based MIPS Malta evaluation 354 board. 355 356config MIPS_SEAD 357 bool "Support for MIPS SEAD board (EXPERIMENTAL)" 358 depends on EXPERIMENTAL 359 select IRQ_CPU 360 select DMA_NONCOHERENT 361 select SYS_SUPPORTS_32BIT_KERNEL 362 select SYS_SUPPORTS_64BIT_KERNEL 363 364config MOMENCO_OCELOT 365 bool "Support for Momentum Ocelot board" 366 select DMA_NONCOHERENT 367 select HW_HAS_PCI 368 select IRQ_CPU 369 select IRQ_CPU_RM7K 370 select MIPS_GT64120 371 select RM7000_CPU_SCACHE 372 select SWAP_IO_SPACE 373 select SYS_SUPPORTS_32BIT_KERNEL 374 select SYS_SUPPORTS_64BIT_KERNEL 375 help 376 The Ocelot is a MIPS-based Single Board Computer (SBC) made by 377 Momentum Computer <http://www.momenco.com/>. 378 379config MOMENCO_OCELOT_G 380 bool "Support for Momentum Ocelot-G board" 381 select DMA_NONCOHERENT 382 select HW_HAS_PCI 383 select IRQ_CPU 384 select IRQ_CPU_RM7K 385 select PCI_MARVELL 386 select RM7000_CPU_SCACHE 387 select SWAP_IO_SPACE 388 select SYS_SUPPORTS_32BIT_KERNEL 389 select SYS_SUPPORTS_64BIT_KERNEL 390 help 391 The Ocelot is a MIPS-based Single Board Computer (SBC) made by 392 Momentum Computer <http://www.momenco.com/>. 393 394config MOMENCO_OCELOT_C 395 bool "Support for Momentum Ocelot-C board" 396 select DMA_NONCOHERENT 397 select HW_HAS_PCI 398 select IRQ_CPU 399 select IRQ_MV64340 400 select PCI_MARVELL 401 select RM7000_CPU_SCACHE 402 select SWAP_IO_SPACE 403 select SYS_SUPPORTS_32BIT_KERNEL 404 select SYS_SUPPORTS_64BIT_KERNEL 405 help 406 The Ocelot is a MIPS-based Single Board Computer (SBC) made by 407 Momentum Computer <http://www.momenco.com/>. 408 409config MOMENCO_OCELOT_3 410 bool "Support for Momentum Ocelot-3 board" 411 select BOOT_ELF32 412 select DMA_NONCOHERENT 413 select HW_HAS_PCI 414 select IRQ_CPU 415 select IRQ_CPU_RM7K 416 select IRQ_MV64340 417 select PCI_MARVELL 418 select RM7000_CPU_SCACHE 419 select SWAP_IO_SPACE 420 select SYS_SUPPORTS_32BIT_KERNEL 421 select SYS_SUPPORTS_64BIT_KERNEL 422 help 423 The Ocelot-3 is based off Discovery III System Controller and 424 PMC-Sierra Rm79000 core. 425 426config MOMENCO_JAGUAR_ATX 427 bool "Support for Momentum Jaguar board" 428 select BOOT_ELF32 429 select DMA_NONCOHERENT 430 select HW_HAS_PCI 431 select IRQ_CPU 432 select IRQ_CPU_RM7K 433 select IRQ_MV64340 434 select LIMITED_DMA 435 select PCI_MARVELL 436 select RM7000_CPU_SCACHE 437 select SWAP_IO_SPACE 438 select SYS_SUPPORTS_32BIT_KERNEL 439 select SYS_SUPPORTS_64BIT_KERNEL 440 help 441 The Jaguar ATX is a MIPS-based Single Board Computer (SBC) made by 442 Momentum Computer <http://www.momenco.com/>. 443 444config JAGUAR_DMALOW 445 bool "Low DMA Mode" 446 depends on MOMENCO_JAGUAR_ATX 447 help 448 Select to Y if jump JP5 is set on your board, N otherwise. Normally 449 the jumper is set, so if you feel unsafe, just say Y. 450 451config PMC_YOSEMITE 452 bool "Support for PMC-Sierra Yosemite eval board" 453 select DMA_COHERENT 454 select HW_HAS_PCI 455 select IRQ_CPU 456 select IRQ_CPU_RM7K 457 select IRQ_CPU_RM9K 458 select SWAP_IO_SPACE 459 select SYS_SUPPORTS_32BIT_KERNEL 460 select SYS_SUPPORTS_64BIT_KERNEL 461 help 462 Yosemite is an evaluation board for the RM9000x2 processor 463 manufactured by PMC-Sierra 464 465config HYPERTRANSPORT 466 bool "Hypertransport Support for PMC-Sierra Yosemite" 467 depends on PMC_YOSEMITE 468 469config DDB5074 470 bool "Support for NEC DDB Vrc-5074 (EXPERIMENTAL)" 471 depends on EXPERIMENTAL 472 select DMA_NONCOHERENT 473 select HAVE_STD_PC_SERIAL_PORT 474 select HW_HAS_PCI 475 select IRQ_CPU 476 select I8259 477 select ISA 478 select SYS_SUPPORTS_32BIT_KERNEL 479 select SYS_SUPPORTS_64BIT_KERNEL 480 help 481 This enables support for the VR5000-based NEC DDB Vrc-5074 482 evaluation board. 483 484config DDB5476 485 bool "Support for NEC DDB Vrc-5476" 486 select DMA_NONCOHERENT 487 select HAVE_STD_PC_SERIAL_PORT 488 select HW_HAS_PCI 489 select IRQ_CPU 490 select I8259 491 select ISA 492 select SYS_SUPPORTS_32BIT_KERNEL 493 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL 494 help 495 This enables support for the R5432-based NEC DDB Vrc-5476 496 evaluation board. 497 498 Features : kernel debugging, serial terminal, NFS root fs, on-board 499 ether port USB, AC97, PCI, PCI VGA card & framebuffer console, 500 IDE controller, PS2 keyboard, PS2 mouse, etc. 501 502config DDB5477 503 bool "Support for NEC DDB Vrc-5477" 504 select DMA_NONCOHERENT 505 select HW_HAS_PCI 506 select I8259 507 select IRQ_CPU 508 select SYS_SUPPORTS_32BIT_KERNEL 509 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL 510 help 511 This enables support for the R5432-based NEC DDB Vrc-5477, 512 or Rockhopper/SolutionGear boards with R5432/R5500 CPUs. 513 514 Features : kernel debugging, serial terminal, NFS root fs, on-board 515 ether port USB, AC97, PCI, etc. 516 517config DDB5477_BUS_FREQUENCY 518 int "bus frequency (in kHZ, 0 for auto-detect)" 519 depends on DDB5477 520 default 0 521 522config QEMU 523 bool "Support for Qemu" 524 select DMA_COHERENT 525 select GENERIC_ISA_DMA 526 select HAVE_STD_PC_SERIAL_PORT 527 select I8259 528 select ISA 529 select SWAP_IO_SPACE 530 select SYS_SUPPORTS_32BIT_KERNEL 531 select SYS_SUPPORTS_BIG_ENDIAN 532 help 533 Qemu is a software emulator which among other architectures also 534 can simulate a MIPS32 4Kc system. This patch adds support for the 535 system architecture that currently is being simulated by Qemu. It 536 will eventually be removed again when Qemu has the capability to 537 simulate actual MIPS hardware platforms. More information on Qemu 538 can be found at http://www.linux-mips.org/wiki/Qemu. 539 540config SGI_IP22 541 bool "Support for SGI IP22 (Indy/Indigo2)" 542 select ARC 543 select ARC32 544 select BOOT_ELF32 545 select DMA_NONCOHERENT 546 select IP22_CPU_SCACHE 547 select IRQ_CPU 548 select SWAP_IO_SPACE 549 select SYS_SUPPORTS_32BIT_KERNEL 550 select SYS_SUPPORTS_64BIT_KERNEL 551 help 552 This are the SGI Indy, Challenge S and Indigo2, as well as certain 553 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 554 that runs on these, say Y here. 555 556config SGI_IP27 557 bool "Support for SGI IP27 (Origin200/2000)" 558 select ARC 559 select ARC64 560 select DMA_IP27 561 select HW_HAS_PCI 562 select PCI_DOMAINS 563 select SYS_SUPPORTS_64BIT_KERNEL 564 help 565 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 566 workstations. To compile a Linux kernel that runs on these, say Y 567 here. 568 569#config SGI_SN0_XXL 570# bool "IP27 XXL" 571# depends on SGI_IP27 572# This options adds support for userspace processes upto 16TB size. 573# Normally the limit is just .5TB. 574 575config SGI_SN0_N_MODE 576 bool "IP27 N-Mode" 577 depends on SGI_IP27 578 help 579 The nodes of Origin 200, Origin 2000 and Onyx 2 systems can be 580 configured in either N-Modes which allows for more nodes or M-Mode 581 which allows for more memory. Your system is most probably 582 running in M-Mode, so you should say N here. 583 584config ARCH_DISCONTIGMEM_ENABLE 585 bool 586 default y if SGI_IP27 587 help 588 Say Y to upport efficient handling of discontiguous physical memory, 589 for architectures which are either NUMA (Non-Uniform Memory Access) 590 or have huge holes in the physical address space for other reasons. 591 See <file:Documentation/vm/numa> for more. 592 593config NUMA 594 bool "NUMA Support" 595 depends on SGI_IP27 596 help 597 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 598 Access). This option is for configuring high-end multiprocessor 599 server machines. If in doubt, say N. 600 601config MAPPED_KERNEL 602 bool "Mapped kernel support" 603 depends on SGI_IP27 604 help 605 Change the way a Linux kernel is loaded into memory on a MIPS64 606 machine. This is required in order to support text replication and 607 NUMA. If you need to understand it, read the source code. 608 609config REPLICATE_KTEXT 610 bool "Kernel text replication support" 611 depends on SGI_IP27 612 help 613 Say Y here to enable replicating the kernel text across multiple 614 nodes in a NUMA cluster. This trades memory for speed. 615 616config REPLICATE_EXHANDLERS 617 bool "Exception handler replication support" 618 depends on SGI_IP27 619 help 620 Say Y here to enable replicating the kernel exception handlers 621 across multiple nodes in a NUMA cluster. This trades memory for 622 speed. 623 624config SGI_IP32 625 bool "Support for SGI IP32 (O2) (EXPERIMENTAL)" 626 depends on EXPERIMENTAL 627 select ARC 628 select ARC32 629 select BOOT_ELF32 630 select OWN_DMA 631 select DMA_IP32 632 select DMA_NONCOHERENT 633 select HW_HAS_PCI 634 select R5000_CPU_SCACHE 635 select RM7000_CPU_SCACHE 636 select SYS_SUPPORTS_64BIT_KERNEL 637 help 638 If you want this kernel to run on SGI O2 workstation, say Y here. 639 640config SOC_AU1X00 641 bool "Support for AMD/Alchemy Au1X00 SOCs" 642 select SYS_SUPPORTS_32BIT_KERNEL 643 644choice 645 prompt "Au1X00 SOC Type" 646 depends on SOC_AU1X00 647 help 648 Say Y here to enable support for one of three AMD/Alchemy 649 SOCs. For additional documentation see www.amd.com. 650 651config SOC_AU1000 652 bool "SOC_AU1000" 653config SOC_AU1100 654 bool "SOC_AU1100" 655config SOC_AU1500 656 bool "SOC_AU1500" 657config SOC_AU1550 658 bool "SOC_AU1550" 659 660endchoice 661 662choice 663 prompt "AMD/Alchemy Au1x00 board support" 664 depends on SOC_AU1X00 665 help 666 These are evaluation boards built by AMD/Alchemy to 667 showcase their Au1X00 Internet Edge Processors. The SOC design 668 is based on the MIPS32 architecture running at 266/400/500MHz 669 with many integrated peripherals. Further information can be 670 found at their website, <http://www.amd.com/>. Say Y here if you 671 wish to build a kernel for this platform. 672 673config MIPS_PB1000 674 bool "PB1000 board" 675 depends on SOC_AU1000 676 select DMA_NONCOHERENT 677 select HW_HAS_PCI 678 select SWAP_IO_SPACE 679 680config MIPS_PB1100 681 bool "PB1100 board" 682 depends on SOC_AU1100 683 select DMA_NONCOHERENT 684 select HW_HAS_PCI 685 select SWAP_IO_SPACE 686 687config MIPS_PB1500 688 bool "PB1500 board" 689 depends on SOC_AU1500 690 select DMA_COHERENT 691 select HW_HAS_PCI 692 693config MIPS_PB1550 694 bool "PB1550 board" 695 depends on SOC_AU1550 696 select DMA_COHERENT 697 select HW_HAS_PCI 698 select MIPS_DISABLE_OBSOLETE_IDE 699 700config MIPS_DB1000 701 bool "DB1000 board" 702 depends on SOC_AU1000 703 select DMA_NONCOHERENT 704 select HW_HAS_PCI 705 706config MIPS_DB1100 707 bool "DB1100 board" 708 depends on SOC_AU1100 709 select DMA_NONCOHERENT 710 711config MIPS_DB1500 712 bool "DB1500 board" 713 depends on SOC_AU1500 714 select DMA_COHERENT 715 select HW_HAS_PCI 716 select MIPS_DISABLE_OBSOLETE_IDE 717 718config MIPS_DB1550 719 bool "DB1550 board" 720 depends on SOC_AU1550 721 select HW_HAS_PCI 722 select DMA_COHERENT 723 select MIPS_DISABLE_OBSOLETE_IDE 724 725config MIPS_BOSPORUS 726 bool "Bosporus board" 727 depends on SOC_AU1500 728 select DMA_NONCOHERENT 729 730config MIPS_MIRAGE 731 bool "Mirage board" 732 depends on SOC_AU1500 733 select DMA_NONCOHERENT 734 735config MIPS_XXS1500 736 bool "MyCable XXS1500 board" 737 depends on SOC_AU1500 738 select DMA_NONCOHERENT 739 740config MIPS_MTX1 741 bool "4G Systems MTX-1 board" 742 depends on SOC_AU1500 743 select HW_HAS_PCI 744 select DMA_NONCOHERENT 745 746endchoice 747 748config SIBYTE_SB1xxx_SOC 749 bool "Support for Broadcom BCM1xxx SOCs (EXPERIMENTAL)" 750 depends on EXPERIMENTAL 751 select BOOT_ELF32 752 select DMA_COHERENT 753 select SWAP_IO_SPACE 754 select SYS_SUPPORTS_32BIT_KERNEL 755 select SYS_SUPPORTS_64BIT_KERNEL 756 757choice 758 prompt "BCM1xxx SOC-based board" 759 depends on SIBYTE_SB1xxx_SOC 760 default SIBYTE_SWARM 761 help 762 Enable support for boards based on the SiByte line of SOCs 763 from Broadcom. There are configurations for the known 764 evaluation boards, or you can choose "Other" and add your 765 own board support code. 766 767config SIBYTE_SWARM 768 bool "BCM91250A-SWARM" 769 select SIBYTE_SB1250 770 771config SIBYTE_SENTOSA 772 bool "BCM91250E-Sentosa" 773 select SIBYTE_SB1250 774 775config SIBYTE_RHONE 776 bool "BCM91125E-Rhone" 777 select SIBYTE_BCM1125H 778 779config SIBYTE_CARMEL 780 bool "BCM91120x-Carmel" 781 select SIBYTE_BCM1120 782 783config SIBYTE_PTSWARM 784 bool "BCM91250PT-PTSWARM" 785 select SIBYTE_SB1250 786 787config SIBYTE_LITTLESUR 788 bool "BCM91250C2-LittleSur" 789 select SIBYTE_SB1250 790 791config SIBYTE_CRHINE 792 bool "BCM91120C-CRhine" 793 select SIBYTE_BCM1120 794 795config SIBYTE_CRHONE 796 bool "BCM91125C-CRhone" 797 select SIBYTE_BCM1125 798 799config SIBYTE_UNKNOWN 800 bool "Other" 801 802endchoice 803 804config SIBYTE_BOARD 805 bool 806 depends on SIBYTE_SB1xxx_SOC && !SIBYTE_UNKNOWN 807 default y 808 809choice 810 prompt "BCM1xxx SOC Type" 811 depends on SIBYTE_UNKNOWN 812 default SIBYTE_UNK_BCM1250 813 help 814 Since you haven't chosen a known evaluation board from 815 Broadcom, you must explicitly pick the SOC this kernel is 816 targetted for. 817 818config SIBYTE_UNK_BCM1250 819 bool "BCM1250" 820 select SIBYTE_SB1250 821 822config SIBYTE_UNK_BCM1120 823 bool "BCM1120" 824 select SIBYTE_BCM1120 825 826config SIBYTE_UNK_BCM1125 827 bool "BCM1125" 828 select SIBYTE_BCM1125 829 830config SIBYTE_UNK_BCM1125H 831 bool "BCM1125H" 832 select SIBYTE_BCM1125H 833 834endchoice 835 836config SIBYTE_SB1250 837 bool 838 select HW_HAS_PCI 839 840config SIBYTE_BCM1120 841 bool 842 select SIBYTE_BCM112X 843 844config SIBYTE_BCM1125 845 bool 846 select HW_HAS_PCI 847 select SIBYTE_BCM112X 848 849config SIBYTE_BCM1125H 850 bool 851 select HW_HAS_PCI 852 select SIBYTE_BCM112X 853 854config SIBYTE_BCM112X 855 bool 856 857choice 858 prompt "SiByte SOC Stepping" 859 depends on SIBYTE_SB1xxx_SOC 860 861config CPU_SB1_PASS_1 862 bool "1250 Pass1" 863 depends on SIBYTE_SB1250 864 select CPU_HAS_PREFETCH 865 866config CPU_SB1_PASS_2_1250 867 bool "1250 An" 868 depends on SIBYTE_SB1250 869 select CPU_SB1_PASS_2 870 help 871 Also called BCM1250 Pass 2 872 873config CPU_SB1_PASS_2_2 874 bool "1250 Bn" 875 depends on SIBYTE_SB1250 876 select CPU_HAS_PREFETCH 877 help 878 Also called BCM1250 Pass 2.2 879 880config CPU_SB1_PASS_4 881 bool "1250 Cn" 882 depends on SIBYTE_SB1250 883 select CPU_HAS_PREFETCH 884 help 885 Also called BCM1250 Pass 3 886 887config CPU_SB1_PASS_2_112x 888 bool "112x Hybrid" 889 depends on SIBYTE_BCM112X 890 select CPU_SB1_PASS_2 891 892config CPU_SB1_PASS_3 893 bool "112x An" 894 depends on SIBYTE_BCM112X 895 select CPU_HAS_PREFETCH 896 897endchoice 898 899config CPU_SB1_PASS_2 900 bool 901 902config SIBYTE_HAS_LDT 903 bool 904 depends on PCI && (SIBYTE_SB1250 || SIBYTE_BCM1125H) 905 default y 906 907config SIMULATION 908 bool "Running under simulation" 909 depends on SIBYTE_SB1xxx_SOC 910 help 911 Build a kernel suitable for running under the GDB simulator. 912 Primarily adjusts the kernel's notion of time. 913 914config SIBYTE_CFE 915 bool "Booting from CFE" 916 depends on SIBYTE_SB1xxx_SOC 917 help 918 Make use of the CFE API for enumerating available memory, 919 controlling secondary CPUs, and possibly console output. 920 921config SIBYTE_CFE_CONSOLE 922 bool "Use firmware console" 923 depends on SIBYTE_CFE 924 help 925 Use the CFE API's console write routines during boot. Other console 926 options (VT console, sb1250 duart console, etc.) should not be 927 configured. 928 929config SIBYTE_STANDALONE 930 bool 931 depends on SIBYTE_SB1xxx_SOC && !SIBYTE_CFE 932 default y 933 934config SIBYTE_STANDALONE_RAM_SIZE 935 int "Memory size (in megabytes)" 936 depends on SIBYTE_STANDALONE 937 default "32" 938 939config SIBYTE_BUS_WATCHER 940 bool "Support for Bus Watcher statistics" 941 depends on SIBYTE_SB1xxx_SOC 942 help 943 Handle and keep statistics on the bus error interrupts (COR_ECC, 944 BAD_ECC, IO_BUS). 945 946config SIBYTE_BW_TRACE 947 bool "Capture bus trace before bus error" 948 depends on SIBYTE_BUS_WATCHER 949 help 950 Run a continuous bus trace, dumping the raw data as soon as 951 a ZBbus error is detected. Cannot work if ZBbus profiling 952 is turned on, and also will interfere with JTAG-based trace 953 buffer activity. Raw buffer data is dumped to console, and 954 must be processed off-line. 955 956config SIBYTE_SB1250_PROF 957 bool "Support for SB1/SOC profiling - SB1/SCD perf counters" 958 depends on SIBYTE_SB1xxx_SOC 959 960config SIBYTE_TBPROF 961 bool "Support for ZBbus profiling" 962 depends on SIBYTE_SB1xxx_SOC 963 964config SNI_RM200_PCI 965 bool "Support for SNI RM200 PCI" 966 select ARC 967 select ARC32 968 select BOOT_ELF32 969 select DMA_NONCOHERENT 970 select GENERIC_ISA_DMA 971 select HAVE_STD_PC_SERIAL_PORT 972 select HW_HAS_PCI 973 select I8259 974 select ISA 975 select SYS_SUPPORTS_32BIT_KERNEL 976 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL 977 help 978 The SNI RM200 PCI was a MIPS-based platform manufactured by Siemens 979 Nixdorf Informationssysteme (SNI), parent company of Pyramid 980 Technology and now in turn merged with Fujitsu. Say Y here to 981 support this machine type. 982 983config TOSHIBA_RBTX4927 984 bool "Support for Toshiba TBTX49[23]7 board" 985 select DMA_NONCOHERENT 986 select HAS_TXX9_SERIAL 987 select HW_HAS_PCI 988 select I8259 989 select ISA 990 select SWAP_IO_SPACE 991 select SYS_SUPPORTS_32BIT_KERNEL 992 select SYS_SUPPORTS_64BIT_KERNEL 993 help 994 This Toshiba board is based on the TX4927 processor. Say Y here to 995 support this machine type 996 997config TOSHIBA_FPCIB0 998 bool "FPCIB0 Backplane Support" 999 depends on TOSHIBA_RBTX4927 1000 1001config RWSEM_GENERIC_SPINLOCK 1002 bool 1003 default y 1004 1005config RWSEM_XCHGADD_ALGORITHM 1006 bool 1007 1008config GENERIC_CALIBRATE_DELAY 1009 bool 1010 default y 1011 1012config HAVE_DEC_LOCK 1013 bool 1014 default y 1015 1016# 1017# Select some configuration options automatically based on user selections. 1018# 1019config ARC 1020 bool 1021 depends on SNI_RM200_PCI || SGI_IP32 || SGI_IP27 || SGI_IP22 || MIPS_MAGNUM_4000 || OLIVETTI_M700 || ACER_PICA_61 1022 default y 1023 1024config DMA_COHERENT 1025 bool 1026 1027config DMA_IP27 1028 bool 1029 1030config DMA_IP32 1031 bool 1032 select DMA_NEED_PCI_MAP_STATE 1033 1034config DMA_NONCOHERENT 1035 bool 1036 select DMA_NEED_PCI_MAP_STATE 1037 1038config DMA_NEED_PCI_MAP_STATE 1039 bool 1040 1041config EARLY_PRINTK 1042 bool 1043 depends on MACH_DECSTATION 1044 default y 1045 1046config GENERIC_ISA_DMA 1047 bool 1048 depends on SNI_RM200_PCI || MIPS_MAGNUM_4000 || OLIVETTI_M700 || ACER_PICA_61 || MIPS_MALTA 1049 default y 1050 1051config I8259 1052 bool 1053 depends on SNI_RM200_PCI || DDB5477 || DDB5476 || DDB5074 || MACH_JAZZ || MIPS_MALTA || MIPS_COBALT 1054 default y 1055 1056config LIMITED_DMA 1057 bool 1058 select HIGHMEM 1059 1060config MIPS_BONITO64 1061 bool 1062 depends on MIPS_ATLAS || MIPS_MALTA 1063 default y 1064 1065config MIPS_MSC 1066 bool 1067 depends on MIPS_ATLAS || MIPS_MALTA 1068 default y 1069 1070config MIPS_NILE4 1071 bool 1072 depends on LASAT 1073 default y 1074 1075config MIPS_DISABLE_OBSOLETE_IDE 1076 bool 1077 1078config CPU_LITTLE_ENDIAN 1079 bool "Generate little endian code" 1080 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 1081 default n if MIPS_EV64120 || MIPS_EV96100 || MOMENCO_OCELOT || MOMENCO_OCELOT_G || SGI_IP22 || SGI_IP27 || SGI_IP32 || TOSHIBA_JMR3927 1082 help 1083 Some MIPS machines can be configured for either little or big endian 1084 byte order. These modes require different kernels. Say Y if your 1085 machine is little endian, N if it's a big endian machine. 1086 1087config IRQ_CPU 1088 bool 1089 1090config IRQ_CPU_RM7K 1091 bool 1092 1093config IRQ_MV64340 1094 bool 1095 1096config DDB5XXX_COMMON 1097 bool 1098 depends on DDB5074 || DDB5476 || DDB5477 1099 default y 1100 1101config MIPS_BOARDS_GEN 1102 bool 1103 depends on MIPS_ATLAS || MIPS_MALTA || MIPS_SEAD 1104 default y 1105 1106config MIPS_GT64111 1107 bool 1108 depends on MIPS_COBALT 1109 default y 1110 1111config MIPS_GT64120 1112 bool 1113 depends on MIPS_EV64120 || MIPS_EV96100 || LASAT || MIPS_ATLAS || MIPS_MALTA || MOMENCO_OCELOT 1114 default y 1115 1116config MIPS_TX3927 1117 bool 1118 depends on TOSHIBA_JMR3927 1119 select HAS_TXX9_SERIAL 1120 default y 1121 1122config PCI_MARVELL 1123 bool 1124 1125config ITE_BOARD_GEN 1126 bool 1127 depends on MIPS_IVR || MIPS_ITE8172 1128 default y 1129 1130config SWAP_IO_SPACE 1131 bool 1132 1133# 1134# Unfortunately not all GT64120 systems run the chip at the same clock. 1135# As the user for the clock rate and try to minimize the available options. 1136# 1137choice 1138 prompt "Galileo Chip Clock" 1139 #default SYSCLK_83 if MIPS_EV64120 1140 depends on MIPS_EV64120 || MOMENCO_OCELOT || MOMENCO_OCELOT_G 1141 default SYSCLK_83 if MIPS_EV64120 1142 default SYSCLK_100 if MOMENCO_OCELOT || MOMENCO_OCELOT_G 1143 1144config SYSCLK_75 1145 bool "75" if MIPS_EV64120 1146 1147config SYSCLK_83 1148 bool "83.3" if MIPS_EV64120 1149 1150config SYSCLK_100 1151 bool "100" if MIPS_EV64120 || MOMENCO_OCELOT || MOMENCO_OCELOT_G 1152 1153endchoice 1154 1155config AU1X00_USB_DEVICE 1156 bool 1157 depends on MIPS_PB1500 || MIPS_PB1100 || MIPS_PB1000 1158 default n 1159 1160config MIPS_GT96100 1161 bool 1162 depends on MIPS_EV96100 1163 default y 1164 help 1165 Say Y here to support the Galileo Technology GT96100 communications 1166 controller card. There is a web page at <http://www.galileot.com/>. 1167 1168config IT8172_CIR 1169 bool 1170 depends on MIPS_ITE8172 || MIPS_IVR 1171 default y 1172 1173config IT8712 1174 bool 1175 depends on MIPS_ITE8172 1176 default y 1177 1178config BOOT_ELF32 1179 bool 1180 depends on MACH_DECSTATION || MIPS_ATLAS || MIPS_MALTA || MOMENCO_JAGUAR_ATX || MOMENCO_OCELOT_3 || SIBYTE_SB1xxx_SOC || SGI_IP32 || SGI_IP22 || SNI_RM200_PCI 1181 default y 1182 1183config MIPS_L1_CACHE_SHIFT 1184 int 1185 default "4" if MACH_DECSTATION 1186 default "7" if SGI_IP27 1187 default "5" 1188 1189config ARC32 1190 bool 1191 depends on MACH_JAZZ || SNI_RM200_PCI || SGI_IP22 || SGI_IP32 1192 default y 1193 1194config HAVE_STD_PC_SERIAL_PORT 1195 bool 1196 1197config ARC_CONSOLE 1198 bool "ARC console support" 1199 depends on SGI_IP22 || SNI_RM200_PCI 1200 1201config ARC_MEMORY 1202 bool 1203 depends on MACH_JAZZ || SNI_RM200_PCI || SGI_IP32 1204 default y 1205 1206config ARC_PROMLIB 1207 bool 1208 depends on MACH_JAZZ || SNI_RM200_PCI || SGI_IP22 || SGI_IP32 1209 default y 1210 1211config ARC64 1212 bool 1213 depends on SGI_IP27 1214 default y 1215 1216config BOOT_ELF64 1217 bool 1218 depends on SGI_IP27 1219 default y 1220 1221#config MAPPED_PCI_IO y 1222# bool 1223# depends on SGI_IP27 1224# default y 1225 1226config QL_ISP_A64 1227 bool 1228 depends on SGI_IP27 1229 default y 1230 1231config TOSHIBA_BOARDS 1232 bool 1233 depends on TOSHIBA_JMR3927 || TOSHIBA_RBTX4927 1234 default y 1235 1236endmenu 1237 1238menu "CPU selection" 1239 1240choice 1241 prompt "CPU type" 1242 default CPU_R4X00 1243 1244config CPU_MIPS32 1245 bool "MIPS32" 1246 select CPU_SUPPORTS_32BIT_KERNEL 1247 1248config CPU_MIPS64 1249 bool "MIPS64" 1250 select CPU_SUPPORTS_32BIT_KERNEL 1251 select CPU_SUPPORTS_64BIT_KERNEL 1252 1253config CPU_R3000 1254 bool "R3000" 1255 select CPU_SUPPORTS_32BIT_KERNEL 1256 help 1257 Please make sure to pick the right CPU type. Linux/MIPS is not 1258 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1259 *not* work on R4000 machines and vice versa. However, since most 1260 of the supported machines have an R4000 (or similar) CPU, R4x00 1261 might be a safe bet. If the resulting kernel does not work, 1262 try to recompile with R3000. 1263 1264config CPU_TX39XX 1265 bool "R39XX" 1266 select CPU_SUPPORTS_32BIT_KERNEL 1267 1268config CPU_VR41XX 1269 bool "R41xx" 1270 select CPU_SUPPORTS_32BIT_KERNEL 1271 select CPU_SUPPORTS_64BIT_KERNEL 1272 help 1273 The options selects support for the NEC VR41xx series of processors. 1274 Only choose this option if you have one of these processors as a 1275 kernel built with this option will not run on any other type of 1276 processor or vice versa. 1277 1278config CPU_R4300 1279 bool "R4300" 1280 select CPU_SUPPORTS_32BIT_KERNEL 1281 select CPU_SUPPORTS_64BIT_KERNEL 1282 help 1283 MIPS Technologies R4300-series processors. 1284 1285config CPU_R4X00 1286 bool "R4x00" 1287 select CPU_SUPPORTS_32BIT_KERNEL 1288 select CPU_SUPPORTS_64BIT_KERNEL 1289 help 1290 MIPS Technologies R4000-series processors other than 4300, including 1291 the R4000, R4400, R4600, and 4700. 1292 1293config CPU_TX49XX 1294 bool "R49XX" 1295 select CPU_SUPPORTS_32BIT_KERNEL 1296 select CPU_SUPPORTS_64BIT_KERNEL 1297 1298config CPU_R5000 1299 bool "R5000" 1300 select CPU_SUPPORTS_32BIT_KERNEL 1301 select CPU_SUPPORTS_64BIT_KERNEL 1302 help 1303 MIPS Technologies R5000-series processors other than the Nevada. 1304 1305config CPU_R5432 1306 bool "R5432" 1307 1308config CPU_R6000 1309 bool "R6000" 1310 depends on EXPERIMENTAL 1311 select CPU_SUPPORTS_32BIT_KERNEL 1312 help 1313 MIPS Technologies R6000 and R6000A series processors. Note these 1314 processors are extremly rare and the support for them is incomplete. 1315 1316config CPU_NEVADA 1317 bool "RM52xx" 1318 select CPU_SUPPORTS_32BIT_KERNEL 1319 select CPU_SUPPORTS_64BIT_KERNEL 1320 help 1321 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1322 1323config CPU_R8000 1324 bool "R8000" 1325 depends on EXPERIMENTAL 1326 select CPU_SUPPORTS_64BIT_KERNEL 1327 help 1328 MIPS Technologies R8000 processors. Note these processors are 1329 uncommon and the support for them is incomplete. 1330 1331config CPU_R10000 1332 bool "R10000" 1333 select CPU_SUPPORTS_32BIT_KERNEL 1334 select CPU_SUPPORTS_64BIT_KERNEL 1335 help 1336 MIPS Technologies R10000-series processors. 1337 1338config CPU_RM7000 1339 bool "RM7000" 1340 select CPU_SUPPORTS_32BIT_KERNEL 1341 select CPU_SUPPORTS_64BIT_KERNEL 1342 1343config CPU_RM9000 1344 bool "RM9000" 1345 select CPU_SUPPORTS_32BIT_KERNEL 1346 select CPU_SUPPORTS_64BIT_KERNEL 1347 1348config CPU_SB1 1349 bool "SB1" 1350 select CPU_SUPPORTS_32BIT_KERNEL 1351 select CPU_SUPPORTS_64BIT_KERNEL 1352 1353endchoice 1354 1355choice 1356 prompt "Kernel page size" 1357 default PAGE_SIZE_4KB 1358 1359config PAGE_SIZE_4KB 1360 bool "4kB" 1361 help 1362 This option select the standard 4kB Linux page size. On some 1363 R3000-family processors this is the only available page size. Using 1364 4kB page size will minimize memory consumption and is therefore 1365 recommended for low memory systems. 1366 1367config PAGE_SIZE_8KB 1368 bool "8kB" 1369 depends on EXPERIMENTAL && CPU_R8000 1370 help 1371 Using 8kB page size will result in higher performance kernel at 1372 the price of higher memory consumption. This option is available 1373 only on the R8000 processor. Not that at the time of this writing 1374 this option is still high experimental; there are also issues with 1375 compatibility of user applications. 1376 1377config PAGE_SIZE_16KB 1378 bool "16kB" 1379 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX 1380 help 1381 Using 16kB page size will result in higher performance kernel at 1382 the price of higher memory consumption. This option is available on 1383 all non-R3000 family processor. Not that at the time of this 1384 writing this option is still high experimental; there are also 1385 issues with compatibility of user applications. 1386 1387config PAGE_SIZE_64KB 1388 bool "64kB" 1389 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX 1390 help 1391 Using 64kB page size will result in higher performance kernel at 1392 the price of higher memory consumption. This option is available on 1393 all non-R3000 family processor. Not that at the time of this 1394 writing this option is still high experimental; there are also 1395 issues with compatibility of user applications. 1396 1397endchoice 1398 1399config BOARD_SCACHE 1400 bool 1401 1402config IP22_CPU_SCACHE 1403 bool 1404 select BOARD_SCACHE 1405 1406config R5000_CPU_SCACHE 1407 bool 1408 select BOARD_SCACHE 1409 1410config RM7000_CPU_SCACHE 1411 bool 1412 select BOARD_SCACHE 1413 1414config SIBYTE_DMA_PAGEOPS 1415 bool "Use DMA to clear/copy pages" 1416 depends on CPU_SB1 1417 help 1418 Instead of using the CPU to zero and copy pages, use a Data Mover 1419 channel. These DMA channels are otherwise unused by the standard 1420 SiByte Linux port. Seems to give a small performance benefit. 1421 1422config CPU_HAS_PREFETCH 1423 bool "Enable prefetches" if CPU_SB1 && !CPU_SB1_PASS_2 1424 default y if CPU_MIPS32 || CPU_MIPS64 || CPU_RM7000 || CPU_RM9000 || CPU_R10000 1425 1426config VTAG_ICACHE 1427 bool "Support for Virtual Tagged I-cache" if CPU_MIPS64 || CPU_MIPS32 1428 default y if CPU_SB1 1429 1430config SB1_PASS_1_WORKAROUNDS 1431 bool 1432 depends on CPU_SB1_PASS_1 1433 default y 1434 1435config SB1_PASS_2_WORKAROUNDS 1436 bool 1437 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 1438 default y 1439 1440config SB1_PASS_2_1_WORKAROUNDS 1441 bool 1442 depends on CPU_SB1 && CPU_SB1_PASS_2 1443 default y 1444 1445config 64BIT_PHYS_ADDR 1446 bool "Support for 64-bit physical address space" 1447 depends on (CPU_R4X00 || CPU_R5000 || CPU_RM7000 || CPU_RM9000 || CPU_R10000 || CPU_SB1 || CPU_MIPS32 || CPU_MIPS64) && 32BIT 1448 1449config CPU_ADVANCED 1450 bool "Override CPU Options" 1451 depends on 32BIT 1452 help 1453 Saying yes here allows you to select support for various features 1454 your CPU may or may not have. Most people should say N here. 1455 1456config CPU_HAS_LLSC 1457 bool "ll/sc Instructions available" if CPU_ADVANCED 1458 default y if !CPU_ADVANCED && !CPU_R3000 && !CPU_VR41XX && !CPU_TX39XX 1459 help 1460 MIPS R4000 series and later provide the Load Linked (ll) 1461 and Store Conditional (sc) instructions. More information is 1462 available at <http://www.go-ecs.com/mips/miptek1.htm>. 1463 1464 Say Y here if your CPU has the ll and sc instructions. Say Y here 1465 for better performance, N if you don't know. You must say Y here 1466 for multiprocessor machines. 1467 1468config CPU_HAS_LLDSCD 1469 bool "lld/scd Instructions available" if CPU_ADVANCED 1470 default y if !CPU_ADVANCED && !CPU_R3000 && !CPU_VR41XX && !CPU_TX39XX && !CPU_MIPS32 1471 help 1472 Say Y here if your CPU has the lld and scd instructions, the 64-bit 1473 equivalents of ll and sc. Say Y here for better performance, N if 1474 you don't know. You must say Y here for multiprocessor machines. 1475 1476config CPU_HAS_WB 1477 bool "Writeback Buffer available" if CPU_ADVANCED 1478 default y if !CPU_ADVANCED && CPU_R3000 && MACH_DECSTATION 1479 help 1480 Say N here for slightly better performance. You must say Y here for 1481 machines which require flushing of write buffers in software. Saying 1482 Y is the safe option; N may result in kernel malfunction and crashes. 1483 1484config CPU_HAS_SYNC 1485 bool 1486 depends on !CPU_R3000 1487 default y 1488 1489# 1490# - Highmem only makes sense for the 32-bit kernel. 1491# - The current highmem code will only work properly on physically indexed 1492# caches such as R3000, SB1, R7000 or those that look like they're virtually 1493# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 1494# moment we protect the user and offer the highmem option only on machines 1495# where it's known to be safe. This will not offer highmem on a few systems 1496# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 1497# indexed CPUs but we're playing safe. 1498# - We should not offer highmem for system of which we already know that they 1499# don't have memory configurations that could gain from highmem support in 1500# the kernel because they don't support configurations with RAM at physical 1501# addresses > 0x20000000. 1502# 1503config HIGHMEM 1504 bool "High Memory Support" 1505 depends on 32BIT && (CPU_R3000 || CPU_SB1 || CPU_R7000 || CPU_RM9000 || CPU_R10000) && !(MACH_DECSTATION || MOMENCO_JAGUAR_ATX) 1506 1507config ARCH_FLATMEM_ENABLE 1508 def_bool y 1509 depends on !NUMA 1510 1511source "mm/Kconfig" 1512 1513config SMP 1514 bool "Multi-Processing support" 1515 depends on CPU_RM9000 || (SIBYTE_SB1250 && !SIBYTE_STANDALONE) || SGI_IP27 1516 ---help--- 1517 This enables support for systems with more than one CPU. If you have 1518 a system with only one CPU, like most personal computers, say N. If 1519 you have a system with more than one CPU, say Y. 1520 1521 If you say N here, the kernel will run on single and multiprocessor 1522 machines, but will use only one CPU of a multiprocessor machine. If 1523 you say Y here, the kernel will run on many, but not all, 1524 singleprocessor machines. On a singleprocessor machine, the kernel 1525 will run faster if you say N here. 1526 1527 People using multiprocessor machines who say Y here should also say 1528 Y to "Enhanced Real Time Clock Support", below. 1529 1530 See also the <file:Documentation/smp.txt> and the SMP-HOWTO 1531 available at <http://www.tldp.org/docs.html#howto>. 1532 1533 If you don't know what to do here, say N. 1534 1535config NR_CPUS 1536 int "Maximum number of CPUs (2-64)" 1537 range 2 64 1538 depends on SMP 1539 default "64" if SGI_IP27 1540 default "2" 1541 help 1542 This allows you to specify the maximum number of CPUs which this 1543 kernel will support. The maximum supported value is 32 for 32-bit 1544 kernel and 64 for 64-bit kernels; the minimum value which makes 1545 sense is 2. 1546 1547 This is purely to save memory - each supported CPU adds 1548 approximately eight kilobytes to the kernel image. 1549 1550config PREEMPT 1551 bool "Preemptible Kernel" 1552 help 1553 This option reduces the latency of the kernel when reacting to 1554 real-time or interactive events by allowing a low priority process to 1555 be preempted even if it is in kernel mode executing a system call. 1556 This allows applications to run more reliably even when the system is 1557 under load. 1558 1559config RTC_DS1742 1560 bool "DS1742 BRAM/RTC support" 1561 depends on TOSHIBA_JMR3927 || TOSHIBA_RBTX4927 1562 1563config MIPS_INSANE_LARGE 1564 bool "Support for large 64-bit configurations" 1565 depends on CPU_R10000 && 64BIT 1566 help 1567 MIPS R10000 does support a 44 bit / 16TB address space as opposed to 1568 previous 64-bit processors which only supported 40 bit / 1TB. If you 1569 need processes of more than 1TB virtual address space, say Y here. 1570 This will result in additional memory usage, so it is not 1571 recommended for normal users. 1572 1573config RWSEM_GENERIC_SPINLOCK 1574 bool 1575 default y 1576 1577endmenu 1578 1579menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 1580 1581config HW_HAS_PCI 1582 bool 1583 1584config PCI 1585 bool "Support for PCI controller" 1586 depends on HW_HAS_PCI 1587 help 1588 Find out whether you have a PCI motherboard. PCI is the name of a 1589 bus system, i.e. the way the CPU talks to the other stuff inside 1590 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, 1591 say Y, otherwise N. 1592 1593 The PCI-HOWTO, available from 1594 <http://www.tldp.org/docs.html#howto>, contains valuable 1595 information about which PCI hardware does work under Linux and which 1596 doesn't. 1597 1598config PCI_DOMAINS 1599 bool 1600 depends on PCI 1601 1602source "drivers/pci/Kconfig" 1603 1604# 1605# ISA support is now enabled via select. Too many systems still have the one 1606# or other ISA chip on the board that users don't know about so don't expect 1607# users to choose the right thing ... 1608# 1609config ISA 1610 bool 1611 1612config EISA 1613 bool "EISA support" 1614 depends on SGI_IP22 || SNI_RM200_PCI 1615 select ISA 1616 ---help--- 1617 The Extended Industry Standard Architecture (EISA) bus was 1618 developed as an open alternative to the IBM MicroChannel bus. 1619 1620 The EISA bus provided some of the features of the IBM MicroChannel 1621 bus while maintaining backward compatibility with cards made for 1622 the older ISA bus. The EISA bus saw limited use between 1988 and 1623 1995 when it was made obsolete by the PCI bus. 1624 1625 Say Y here if you are building a kernel for an EISA-based machine. 1626 1627 Otherwise, say N. 1628 1629source "drivers/eisa/Kconfig" 1630 1631config TC 1632 bool "TURBOchannel support" 1633 depends on MACH_DECSTATION 1634 help 1635 TurboChannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 1636 processors. Documentation on writing device drivers for TurboChannel 1637 is available at: 1638 <http://www.cs.arizona.edu/computer.help/policy/DIGITAL_unix/AA-PS3HD-TET1_html/TITLE.html>. 1639 1640#config ACCESSBUS 1641# bool "Access.Bus support" 1642# depends on TC 1643 1644config MMU 1645 bool 1646 default y 1647 1648config MCA 1649 bool 1650 1651config SBUS 1652 bool 1653 1654source "drivers/pcmcia/Kconfig" 1655 1656source "drivers/pci/hotplug/Kconfig" 1657 1658endmenu 1659 1660menu "Executable file formats" 1661 1662source "fs/Kconfig.binfmt" 1663 1664config TRAD_SIGNALS 1665 bool 1666 default y if 32BIT 1667 1668config BUILD_ELF64 1669 bool "Use 64-bit ELF format for building" 1670 depends on 64BIT 1671 help 1672 A 64-bit kernel is usually built using the 64-bit ELF binary object 1673 format as it's one that allows arbitrary 64-bit constructs. For 1674 kernels that are loaded within the KSEG compatibility segments the 1675 32-bit ELF format can optionally be used resulting in a somewhat 1676 smaller binary, but this option is not explicitly supported by the 1677 toolchain and since binutils 2.14 it does not even work at all. 1678 1679 Say Y to use the 64-bit format or N to use the 32-bit one. 1680 1681 If unsure say Y. 1682 1683config BINFMT_IRIX 1684 bool "Include IRIX binary compatibility" 1685 depends on !CPU_LITTLE_ENDIAN && 32BIT && BROKEN 1686 1687config MIPS32_COMPAT 1688 bool "Kernel support for Linux/MIPS 32-bit binary compatibility" 1689 depends on 64BIT 1690 help 1691 Select this option if you want Linux/MIPS 32-bit binary 1692 compatibility. Since all software available for Linux/MIPS is 1693 currently 32-bit you should say Y here. 1694 1695config COMPAT 1696 bool 1697 depends on MIPS32_COMPAT 1698 default y 1699 1700config MIPS32_O32 1701 bool "Kernel support for o32 binaries" 1702 depends on MIPS32_COMPAT 1703 help 1704 Select this option if you want to run o32 binaries. These are pure 1705 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 1706 existing binaries are in this format. 1707 1708 If unsure, say Y. 1709 1710config MIPS32_N32 1711 bool "Kernel support for n32 binaries" 1712 depends on MIPS32_COMPAT 1713 help 1714 Select this option if you want to run n32 binaries. These are 1715 64-bit binaries using 32-bit quantities for addressing and certain 1716 data that would normally be 64-bit. They are used in special 1717 cases. 1718 1719 If unsure, say N. 1720 1721config BINFMT_ELF32 1722 bool 1723 default y if MIPS32_O32 || MIPS32_N32 1724 1725config PM 1726 bool "Power Management support (EXPERIMENTAL)" 1727 depends on EXPERIMENTAL && MACH_AU1X00 1728 1729endmenu 1730 1731source "net/Kconfig" 1732 1733source "drivers/Kconfig" 1734 1735source "fs/Kconfig" 1736 1737source "arch/mips/Kconfig.debug" 1738 1739source "security/Kconfig" 1740 1741source "crypto/Kconfig" 1742 1743source "lib/Kconfig" 1744 1745# 1746# Use the generic interrupt handling code in kernel/irq/: 1747# 1748config GENERIC_HARDIRQS 1749 bool 1750 default y 1751 1752config GENERIC_IRQ_PROBE 1753 bool 1754 default y 1755 1756config ISA_DMA_API 1757 bool 1758 default y