1config MIPS 2 bool 3 default y 4 select HAVE_GENERIC_DMA_COHERENT 5 select HAVE_IDE 6 select HAVE_OPROFILE 7 select HAVE_IRQ_WORK 8 select HAVE_PERF_EVENTS 9 select PERF_USE_VMALLOC 10 select HAVE_ARCH_KGDB 11 select HAVE_FUNCTION_TRACER 12 select HAVE_FUNCTION_TRACE_MCOUNT_TEST 13 select HAVE_DYNAMIC_FTRACE 14 select HAVE_FTRACE_MCOUNT_RECORD 15 select HAVE_C_RECORDMCOUNT 16 select HAVE_FUNCTION_GRAPH_TRACER 17 select HAVE_KPROBES 18 select HAVE_KRETPROBES 19 select ARCH_BINFMT_ELF_RANDOMIZE_PIE 20 select RTC_LIB if !MACH_LOONGSON 21 select GENERIC_ATOMIC64 if !64BIT 22 select HAVE_DMA_ATTRS 23 select HAVE_DMA_API_DEBUG 24 select HAVE_GENERIC_HARDIRQS 25 select GENERIC_IRQ_PROBE 26 select GENERIC_IRQ_SHOW 27 select HAVE_ARCH_JUMP_LABEL 28 select IRQ_FORCED_THREADING 29 select HAVE_MEMBLOCK 30 select HAVE_MEMBLOCK_NODE_MAP 31 select ARCH_DISCARD_MEMBLOCK 32 33menu "Machine selection" 34 35config ZONE_DMA 36 bool 37 38choice 39 prompt "System type" 40 default SGI_IP22 41 42config MIPS_ALCHEMY 43 bool "Alchemy processor based machines" 44 select 64BIT_PHYS_ADDR 45 select CEVT_R4K_LIB 46 select CSRC_R4K_LIB 47 select IRQ_CPU 48 select SYS_HAS_CPU_MIPS32_R1 49 select SYS_SUPPORTS_32BIT_KERNEL 50 select SYS_SUPPORTS_APM_EMULATION 51 select GENERIC_GPIO 52 select ARCH_WANT_OPTIONAL_GPIOLIB 53 select SYS_SUPPORTS_ZBOOT 54 select USB_ARCH_HAS_OHCI 55 select USB_ARCH_HAS_EHCI 56 57config AR7 58 bool "Texas Instruments AR7" 59 select BOOT_ELF32 60 select DMA_NONCOHERENT 61 select CEVT_R4K 62 select CSRC_R4K 63 select IRQ_CPU 64 select NO_EXCEPT_FILL 65 select SWAP_IO_SPACE 66 select SYS_HAS_CPU_MIPS32_R1 67 select SYS_HAS_EARLY_PRINTK 68 select SYS_SUPPORTS_32BIT_KERNEL 69 select SYS_SUPPORTS_LITTLE_ENDIAN 70 select SYS_SUPPORTS_ZBOOT_UART16550 71 select ARCH_REQUIRE_GPIOLIB 72 select VLYNQ 73 help 74 Support for the Texas Instruments AR7 System-on-a-Chip 75 family: TNETD7100, 7200 and 7300. 76 77config ATH79 78 bool "Atheros AR71XX/AR724X/AR913X based boards" 79 select ARCH_REQUIRE_GPIOLIB 80 select BOOT_RAW 81 select CEVT_R4K 82 select CSRC_R4K 83 select DMA_NONCOHERENT 84 select IRQ_CPU 85 select MIPS_MACHINE 86 select SYS_HAS_CPU_MIPS32_R2 87 select SYS_HAS_EARLY_PRINTK 88 select SYS_SUPPORTS_32BIT_KERNEL 89 select SYS_SUPPORTS_BIG_ENDIAN 90 help 91 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 92 93config BCM47XX 94 bool "Broadcom BCM47XX based boards" 95 select CEVT_R4K 96 select CSRC_R4K 97 select DMA_NONCOHERENT 98 select HW_HAS_PCI 99 select IRQ_CPU 100 select SYS_SUPPORTS_32BIT_KERNEL 101 select SYS_SUPPORTS_LITTLE_ENDIAN 102 select GENERIC_GPIO 103 select SYS_HAS_EARLY_PRINTK 104 select CFE 105 help 106 Support for BCM47XX based boards 107 108config BCM63XX 109 bool "Broadcom BCM63XX based boards" 110 select CEVT_R4K 111 select CSRC_R4K 112 select DMA_NONCOHERENT 113 select IRQ_CPU 114 select SYS_HAS_CPU_MIPS32_R1 115 select SYS_SUPPORTS_32BIT_KERNEL 116 select SYS_SUPPORTS_BIG_ENDIAN 117 select SYS_HAS_EARLY_PRINTK 118 select SWAP_IO_SPACE 119 select ARCH_REQUIRE_GPIOLIB 120 help 121 Support for BCM63XX based boards 122 123config MIPS_COBALT 124 bool "Cobalt Server" 125 select CEVT_R4K 126 select CSRC_R4K 127 select CEVT_GT641XX 128 select DMA_NONCOHERENT 129 select HW_HAS_PCI 130 select I8253 131 select I8259 132 select IRQ_CPU 133 select IRQ_GT641XX 134 select PCI_GT64XXX_PCI0 135 select PCI 136 select SYS_HAS_CPU_NEVADA 137 select SYS_HAS_EARLY_PRINTK 138 select SYS_SUPPORTS_32BIT_KERNEL 139 select SYS_SUPPORTS_64BIT_KERNEL 140 select SYS_SUPPORTS_LITTLE_ENDIAN 141 142config MACH_DECSTATION 143 bool "DECstations" 144 select BOOT_ELF32 145 select CEVT_DS1287 146 select CEVT_R4K 147 select CSRC_IOASIC 148 select CSRC_R4K 149 select CPU_DADDI_WORKAROUNDS if 64BIT 150 select CPU_R4000_WORKAROUNDS if 64BIT 151 select CPU_R4400_WORKAROUNDS if 64BIT 152 select DMA_NONCOHERENT 153 select NO_IOPORT 154 select IRQ_CPU 155 select SYS_HAS_CPU_R3000 156 select SYS_HAS_CPU_R4X00 157 select SYS_SUPPORTS_32BIT_KERNEL 158 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL 159 select SYS_SUPPORTS_LITTLE_ENDIAN 160 select SYS_SUPPORTS_128HZ 161 select SYS_SUPPORTS_256HZ 162 select SYS_SUPPORTS_1024HZ 163 help 164 This enables support for DEC's MIPS based workstations. For details 165 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 166 DECstation porting pages on <http://decstation.unix-ag.org/>. 167 168 If you have one of the following DECstation Models you definitely 169 want to choose R4xx0 for the CPU Type: 170 171 DECstation 5000/50 172 DECstation 5000/150 173 DECstation 5000/260 174 DECsystem 5900/260 175 176 otherwise choose R3000. 177 178config MACH_JAZZ 179 bool "Jazz family of machines" 180 select ARC 181 select ARC32 182 select ARCH_MAY_HAVE_PC_FDC 183 select CEVT_R4K 184 select CSRC_R4K 185 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 186 select GENERIC_ISA_DMA 187 select HAVE_PCSPKR_PLATFORM 188 select IRQ_CPU 189 select I8253 190 select I8259 191 select ISA 192 select SYS_HAS_CPU_R4X00 193 select SYS_SUPPORTS_32BIT_KERNEL 194 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL 195 select SYS_SUPPORTS_100HZ 196 help 197 This a family of machines based on the MIPS R4030 chipset which was 198 used by several vendors to build RISC/os and Windows NT workstations. 199 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 200 Olivetti M700-10 workstations. 201 202config MACH_JZ4740 203 bool "Ingenic JZ4740 based machines" 204 select SYS_HAS_CPU_MIPS32_R1 205 select SYS_SUPPORTS_32BIT_KERNEL 206 select SYS_SUPPORTS_LITTLE_ENDIAN 207 select DMA_NONCOHERENT 208 select IRQ_CPU 209 select GENERIC_GPIO 210 select ARCH_REQUIRE_GPIOLIB 211 select SYS_HAS_EARLY_PRINTK 212 select HAVE_PWM 213 select HAVE_CLK 214 select GENERIC_IRQ_CHIP 215 216config LANTIQ 217 bool "Lantiq based platforms" 218 select DMA_NONCOHERENT 219 select IRQ_CPU 220 select CEVT_R4K 221 select CSRC_R4K 222 select SYS_HAS_CPU_MIPS32_R1 223 select SYS_HAS_CPU_MIPS32_R2 224 select SYS_SUPPORTS_BIG_ENDIAN 225 select SYS_SUPPORTS_32BIT_KERNEL 226 select SYS_SUPPORTS_MULTITHREADING 227 select SYS_HAS_EARLY_PRINTK 228 select ARCH_REQUIRE_GPIOLIB 229 select SWAP_IO_SPACE 230 select BOOT_RAW 231 select HAVE_CLK 232 select MIPS_MACHINE 233 234config LASAT 235 bool "LASAT Networks platforms" 236 select CEVT_R4K 237 select CSRC_R4K 238 select DMA_NONCOHERENT 239 select SYS_HAS_EARLY_PRINTK 240 select HW_HAS_PCI 241 select IRQ_CPU 242 select PCI_GT64XXX_PCI0 243 select MIPS_NILE4 244 select R5000_CPU_SCACHE 245 select SYS_HAS_CPU_R5000 246 select SYS_SUPPORTS_32BIT_KERNEL 247 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 248 select SYS_SUPPORTS_LITTLE_ENDIAN 249 250config MACH_LOONGSON 251 bool "Loongson family of machines" 252 select SYS_SUPPORTS_ZBOOT 253 help 254 This enables the support of Loongson family of machines. 255 256 Loongson is a family of general-purpose MIPS-compatible CPUs. 257 developed at Institute of Computing Technology (ICT), 258 Chinese Academy of Sciences (CAS) in the People's Republic 259 of China. The chief architect is Professor Weiwu Hu. 260 261config MIPS_MALTA 262 bool "MIPS Malta board" 263 select ARCH_MAY_HAVE_PC_FDC 264 select BOOT_ELF32 265 select BOOT_RAW 266 select CEVT_R4K 267 select CSRC_R4K 268 select DMA_NONCOHERENT 269 select GENERIC_ISA_DMA 270 select HAVE_PCSPKR_PLATFORM 271 select IRQ_CPU 272 select IRQ_GIC 273 select HW_HAS_PCI 274 select I8253 275 select I8259 276 select MIPS_BOARDS_GEN 277 select MIPS_BONITO64 278 select MIPS_CPU_SCACHE 279 select PCI_GT64XXX_PCI0 280 select MIPS_MSC 281 select SWAP_IO_SPACE 282 select SYS_HAS_CPU_MIPS32_R1 283 select SYS_HAS_CPU_MIPS32_R2 284 select SYS_HAS_CPU_MIPS64_R1 285 select SYS_HAS_CPU_NEVADA 286 select SYS_HAS_CPU_RM7000 287 select SYS_HAS_EARLY_PRINTK 288 select SYS_SUPPORTS_32BIT_KERNEL 289 select SYS_SUPPORTS_64BIT_KERNEL 290 select SYS_SUPPORTS_BIG_ENDIAN 291 select SYS_SUPPORTS_LITTLE_ENDIAN 292 select SYS_SUPPORTS_MIPS_CMP 293 select SYS_SUPPORTS_MULTITHREADING 294 select SYS_SUPPORTS_SMARTMIPS 295 select SYS_SUPPORTS_ZBOOT 296 help 297 This enables support for the MIPS Technologies Malta evaluation 298 board. 299 300config MIPS_SIM 301 bool 'MIPS simulator (MIPSsim)' 302 select CEVT_R4K 303 select CSRC_R4K 304 select DMA_NONCOHERENT 305 select SYS_HAS_EARLY_PRINTK 306 select IRQ_CPU 307 select BOOT_RAW 308 select SYS_HAS_CPU_MIPS32_R1 309 select SYS_HAS_CPU_MIPS32_R2 310 select SYS_HAS_EARLY_PRINTK 311 select SYS_SUPPORTS_32BIT_KERNEL 312 select SYS_SUPPORTS_BIG_ENDIAN 313 select SYS_SUPPORTS_MULTITHREADING 314 select SYS_SUPPORTS_LITTLE_ENDIAN 315 help 316 This option enables support for MIPS Technologies MIPSsim software 317 emulator. 318 319config NEC_MARKEINS 320 bool "NEC EMMA2RH Mark-eins board" 321 select SOC_EMMA2RH 322 select HW_HAS_PCI 323 help 324 This enables support for the NEC Electronics Mark-eins boards. 325 326config MACH_VR41XX 327 bool "NEC VR4100 series based machines" 328 select CEVT_R4K 329 select CSRC_R4K 330 select SYS_HAS_CPU_VR41XX 331 select ARCH_REQUIRE_GPIOLIB 332 333config NXP_STB220 334 bool "NXP STB220 board" 335 select SOC_PNX833X 336 help 337 Support for NXP Semiconductors STB220 Development Board. 338 339config NXP_STB225 340 bool "NXP 225 board" 341 select SOC_PNX833X 342 select SOC_PNX8335 343 help 344 Support for NXP Semiconductors STB225 Development Board. 345 346config PNX8550_JBS 347 bool "NXP PNX8550 based JBS board" 348 select PNX8550 349 select SYS_SUPPORTS_LITTLE_ENDIAN 350 351config PNX8550_STB810 352 bool "NXP PNX8550 based STB810 board" 353 select PNX8550 354 select SYS_SUPPORTS_LITTLE_ENDIAN 355 356config PMC_MSP 357 bool "PMC-Sierra MSP chipsets" 358 depends on EXPERIMENTAL 359 select CEVT_R4K 360 select CSRC_R4K 361 select DMA_NONCOHERENT 362 select SWAP_IO_SPACE 363 select NO_EXCEPT_FILL 364 select BOOT_RAW 365 select SYS_HAS_CPU_MIPS32_R1 366 select SYS_HAS_CPU_MIPS32_R2 367 select SYS_SUPPORTS_32BIT_KERNEL 368 select SYS_SUPPORTS_BIG_ENDIAN 369 select IRQ_CPU 370 select SERIAL_8250 371 select SERIAL_8250_CONSOLE 372 help 373 This adds support for the PMC-Sierra family of Multi-Service 374 Processor System-On-A-Chips. These parts include a number 375 of integrated peripherals, interfaces and DSPs in addition to 376 a variety of MIPS cores. 377 378config PMC_YOSEMITE 379 bool "PMC-Sierra Yosemite eval board" 380 select CEVT_R4K 381 select CSRC_R4K 382 select DMA_COHERENT 383 select HW_HAS_PCI 384 select IRQ_CPU 385 select IRQ_CPU_RM7K 386 select IRQ_CPU_RM9K 387 select SWAP_IO_SPACE 388 select SYS_HAS_CPU_RM9000 389 select SYS_HAS_EARLY_PRINTK 390 select SYS_SUPPORTS_32BIT_KERNEL 391 select SYS_SUPPORTS_64BIT_KERNEL 392 select SYS_SUPPORTS_BIG_ENDIAN 393 select SYS_SUPPORTS_HIGHMEM 394 select SYS_SUPPORTS_SMP 395 help 396 Yosemite is an evaluation board for the RM9000x2 processor 397 manufactured by PMC-Sierra. 398 399config POWERTV 400 bool "Cisco PowerTV" 401 select BOOT_ELF32 402 select CEVT_R4K 403 select CPU_MIPSR2_IRQ_VI 404 select CPU_MIPSR2_IRQ_EI 405 select CSRC_POWERTV 406 select DMA_NONCOHERENT 407 select HW_HAS_PCI 408 select SYS_HAS_EARLY_PRINTK 409 select SYS_HAS_CPU_MIPS32_R2 410 select SYS_SUPPORTS_32BIT_KERNEL 411 select SYS_SUPPORTS_BIG_ENDIAN 412 select SYS_SUPPORTS_HIGHMEM 413 select USB_OHCI_LITTLE_ENDIAN 414 help 415 This enables support for the Cisco PowerTV Platform. 416 417config SGI_IP22 418 bool "SGI IP22 (Indy/Indigo2)" 419 select ARC 420 select ARC32 421 select BOOT_ELF32 422 select CEVT_R4K 423 select CSRC_R4K 424 select DEFAULT_SGI_PARTITION 425 select DMA_NONCOHERENT 426 select HW_HAS_EISA 427 select I8253 428 select I8259 429 select IP22_CPU_SCACHE 430 select IRQ_CPU 431 select GENERIC_ISA_DMA_SUPPORT_BROKEN 432 select SGI_HAS_I8042 433 select SGI_HAS_INDYDOG 434 select SGI_HAS_HAL2 435 select SGI_HAS_SEEQ 436 select SGI_HAS_WD93 437 select SGI_HAS_ZILOG 438 select SWAP_IO_SPACE 439 select SYS_HAS_CPU_R4X00 440 select SYS_HAS_CPU_R5000 441 # 442 # Disable EARLY_PRINTK for now since it leads to overwritten prom 443 # memory during early boot on some machines. 444 # 445 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 446 # for a more details discussion 447 # 448 # select SYS_HAS_EARLY_PRINTK 449 select SYS_SUPPORTS_32BIT_KERNEL 450 select SYS_SUPPORTS_64BIT_KERNEL 451 select SYS_SUPPORTS_BIG_ENDIAN 452 help 453 This are the SGI Indy, Challenge S and Indigo2, as well as certain 454 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 455 that runs on these, say Y here. 456 457config SGI_IP27 458 bool "SGI IP27 (Origin200/2000)" 459 select ARC 460 select ARC64 461 select BOOT_ELF64 462 select DEFAULT_SGI_PARTITION 463 select DMA_COHERENT 464 select SYS_HAS_EARLY_PRINTK 465 select HW_HAS_PCI 466 select NR_CPUS_DEFAULT_64 467 select SYS_HAS_CPU_R10000 468 select SYS_SUPPORTS_64BIT_KERNEL 469 select SYS_SUPPORTS_BIG_ENDIAN 470 select SYS_SUPPORTS_NUMA 471 select SYS_SUPPORTS_SMP 472 help 473 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 474 workstations. To compile a Linux kernel that runs on these, say Y 475 here. 476 477config SGI_IP28 478 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)" 479 depends on EXPERIMENTAL 480 select ARC 481 select ARC64 482 select BOOT_ELF64 483 select CEVT_R4K 484 select CSRC_R4K 485 select DEFAULT_SGI_PARTITION 486 select DMA_NONCOHERENT 487 select GENERIC_ISA_DMA_SUPPORT_BROKEN 488 select IRQ_CPU 489 select HW_HAS_EISA 490 select I8253 491 select I8259 492 select SGI_HAS_I8042 493 select SGI_HAS_INDYDOG 494 select SGI_HAS_HAL2 495 select SGI_HAS_SEEQ 496 select SGI_HAS_WD93 497 select SGI_HAS_ZILOG 498 select SWAP_IO_SPACE 499 select SYS_HAS_CPU_R10000 500 # 501 # Disable EARLY_PRINTK for now since it leads to overwritten prom 502 # memory during early boot on some machines. 503 # 504 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 505 # for a more details discussion 506 # 507 # select SYS_HAS_EARLY_PRINTK 508 select SYS_SUPPORTS_64BIT_KERNEL 509 select SYS_SUPPORTS_BIG_ENDIAN 510 help 511 This is the SGI Indigo2 with R10000 processor. To compile a Linux 512 kernel that runs on these, say Y here. 513 514config SGI_IP32 515 bool "SGI IP32 (O2)" 516 select ARC 517 select ARC32 518 select BOOT_ELF32 519 select CEVT_R4K 520 select CSRC_R4K 521 select DMA_NONCOHERENT 522 select HW_HAS_PCI 523 select IRQ_CPU 524 select R5000_CPU_SCACHE 525 select RM7000_CPU_SCACHE 526 select SYS_HAS_CPU_R5000 527 select SYS_HAS_CPU_R10000 if BROKEN 528 select SYS_HAS_CPU_RM7000 529 select SYS_HAS_CPU_NEVADA 530 select SYS_SUPPORTS_64BIT_KERNEL 531 select SYS_SUPPORTS_BIG_ENDIAN 532 help 533 If you want this kernel to run on SGI O2 workstation, say Y here. 534 535config SIBYTE_CRHINE 536 bool "Sibyte BCM91120C-CRhine" 537 depends on EXPERIMENTAL 538 select BOOT_ELF32 539 select DMA_COHERENT 540 select SIBYTE_BCM1120 541 select SWAP_IO_SPACE 542 select SYS_HAS_CPU_SB1 543 select SYS_SUPPORTS_BIG_ENDIAN 544 select SYS_SUPPORTS_LITTLE_ENDIAN 545 546config SIBYTE_CARMEL 547 bool "Sibyte BCM91120x-Carmel" 548 depends on EXPERIMENTAL 549 select BOOT_ELF32 550 select DMA_COHERENT 551 select SIBYTE_BCM1120 552 select SWAP_IO_SPACE 553 select SYS_HAS_CPU_SB1 554 select SYS_SUPPORTS_BIG_ENDIAN 555 select SYS_SUPPORTS_LITTLE_ENDIAN 556 557config SIBYTE_CRHONE 558 bool "Sibyte BCM91125C-CRhone" 559 depends on EXPERIMENTAL 560 select BOOT_ELF32 561 select DMA_COHERENT 562 select SIBYTE_BCM1125 563 select SWAP_IO_SPACE 564 select SYS_HAS_CPU_SB1 565 select SYS_SUPPORTS_BIG_ENDIAN 566 select SYS_SUPPORTS_HIGHMEM 567 select SYS_SUPPORTS_LITTLE_ENDIAN 568 569config SIBYTE_RHONE 570 bool "Sibyte BCM91125E-Rhone" 571 depends on EXPERIMENTAL 572 select BOOT_ELF32 573 select DMA_COHERENT 574 select SIBYTE_BCM1125H 575 select SWAP_IO_SPACE 576 select SYS_HAS_CPU_SB1 577 select SYS_SUPPORTS_BIG_ENDIAN 578 select SYS_SUPPORTS_LITTLE_ENDIAN 579 580config SIBYTE_SWARM 581 bool "Sibyte BCM91250A-SWARM" 582 select BOOT_ELF32 583 select DMA_COHERENT 584 select HAVE_PATA_PLATFORM 585 select NR_CPUS_DEFAULT_2 586 select SIBYTE_SB1250 587 select SWAP_IO_SPACE 588 select SYS_HAS_CPU_SB1 589 select SYS_SUPPORTS_BIG_ENDIAN 590 select SYS_SUPPORTS_HIGHMEM 591 select SYS_SUPPORTS_LITTLE_ENDIAN 592 select ZONE_DMA32 if 64BIT 593 594config SIBYTE_LITTLESUR 595 bool "Sibyte BCM91250C2-LittleSur" 596 depends on EXPERIMENTAL 597 select BOOT_ELF32 598 select DMA_COHERENT 599 select HAVE_PATA_PLATFORM 600 select NR_CPUS_DEFAULT_2 601 select SIBYTE_SB1250 602 select SWAP_IO_SPACE 603 select SYS_HAS_CPU_SB1 604 select SYS_SUPPORTS_BIG_ENDIAN 605 select SYS_SUPPORTS_HIGHMEM 606 select SYS_SUPPORTS_LITTLE_ENDIAN 607 608config SIBYTE_SENTOSA 609 bool "Sibyte BCM91250E-Sentosa" 610 depends on EXPERIMENTAL 611 select BOOT_ELF32 612 select DMA_COHERENT 613 select NR_CPUS_DEFAULT_2 614 select SIBYTE_SB1250 615 select SWAP_IO_SPACE 616 select SYS_HAS_CPU_SB1 617 select SYS_SUPPORTS_BIG_ENDIAN 618 select SYS_SUPPORTS_LITTLE_ENDIAN 619 620config SIBYTE_BIGSUR 621 bool "Sibyte BCM91480B-BigSur" 622 select BOOT_ELF32 623 select DMA_COHERENT 624 select NR_CPUS_DEFAULT_4 625 select SIBYTE_BCM1x80 626 select SWAP_IO_SPACE 627 select SYS_HAS_CPU_SB1 628 select SYS_SUPPORTS_BIG_ENDIAN 629 select SYS_SUPPORTS_HIGHMEM 630 select SYS_SUPPORTS_LITTLE_ENDIAN 631 select ZONE_DMA32 if 64BIT 632 633config SNI_RM 634 bool "SNI RM200/300/400" 635 select ARC if CPU_LITTLE_ENDIAN 636 select ARC32 if CPU_LITTLE_ENDIAN 637 select SNIPROM if CPU_BIG_ENDIAN 638 select ARCH_MAY_HAVE_PC_FDC 639 select BOOT_ELF32 640 select CEVT_R4K 641 select CSRC_R4K 642 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 643 select DMA_NONCOHERENT 644 select GENERIC_ISA_DMA 645 select HAVE_PCSPKR_PLATFORM 646 select HW_HAS_EISA 647 select HW_HAS_PCI 648 select IRQ_CPU 649 select I8253 650 select I8259 651 select ISA 652 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 653 select SYS_HAS_CPU_R4X00 654 select SYS_HAS_CPU_R5000 655 select SYS_HAS_CPU_R10000 656 select R5000_CPU_SCACHE 657 select SYS_HAS_EARLY_PRINTK 658 select SYS_SUPPORTS_32BIT_KERNEL 659 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL 660 select SYS_SUPPORTS_BIG_ENDIAN 661 select SYS_SUPPORTS_HIGHMEM 662 select SYS_SUPPORTS_LITTLE_ENDIAN 663 help 664 The SNI RM200/300/400 are MIPS-based machines manufactured by 665 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 666 Technology and now in turn merged with Fujitsu. Say Y here to 667 support this machine type. 668 669config MACH_TX39XX 670 bool "Toshiba TX39 series based machines" 671 672config MACH_TX49XX 673 bool "Toshiba TX49 series based machines" 674 675config MIKROTIK_RB532 676 bool "Mikrotik RB532 boards" 677 select CEVT_R4K 678 select CSRC_R4K 679 select DMA_NONCOHERENT 680 select HW_HAS_PCI 681 select IRQ_CPU 682 select SYS_HAS_CPU_MIPS32_R1 683 select SYS_SUPPORTS_32BIT_KERNEL 684 select SYS_SUPPORTS_LITTLE_ENDIAN 685 select SWAP_IO_SPACE 686 select BOOT_RAW 687 select ARCH_REQUIRE_GPIOLIB 688 help 689 Support the Mikrotik(tm) RouterBoard 532 series, 690 based on the IDT RC32434 SoC. 691 692config WR_PPMC 693 bool "Wind River PPMC board" 694 select CEVT_R4K 695 select CSRC_R4K 696 select IRQ_CPU 697 select BOOT_ELF32 698 select DMA_NONCOHERENT 699 select HW_HAS_PCI 700 select PCI_GT64XXX_PCI0 701 select SWAP_IO_SPACE 702 select SYS_HAS_CPU_MIPS32_R1 703 select SYS_HAS_CPU_MIPS32_R2 704 select SYS_HAS_CPU_MIPS64_R1 705 select SYS_HAS_CPU_NEVADA 706 select SYS_HAS_CPU_RM7000 707 select SYS_SUPPORTS_32BIT_KERNEL 708 select SYS_SUPPORTS_64BIT_KERNEL 709 select SYS_SUPPORTS_BIG_ENDIAN 710 select SYS_SUPPORTS_LITTLE_ENDIAN 711 help 712 This enables support for the Wind River MIPS32 4KC PPMC evaluation 713 board, which is based on GT64120 bridge chip. 714 715config CAVIUM_OCTEON_SIMULATOR 716 bool "Cavium Networks Octeon Simulator" 717 select CEVT_R4K 718 select 64BIT_PHYS_ADDR 719 select DMA_COHERENT 720 select SYS_SUPPORTS_64BIT_KERNEL 721 select SYS_SUPPORTS_BIG_ENDIAN 722 select SYS_SUPPORTS_HIGHMEM 723 select SYS_SUPPORTS_HOTPLUG_CPU 724 select SYS_HAS_CPU_CAVIUM_OCTEON 725 select HOLES_IN_ZONE 726 help 727 The Octeon simulator is software performance model of the Cavium 728 Octeon Processor. It supports simulating Octeon processors on x86 729 hardware. 730 731config CAVIUM_OCTEON_REFERENCE_BOARD 732 bool "Cavium Networks Octeon reference board" 733 select CEVT_R4K 734 select 64BIT_PHYS_ADDR 735 select DMA_COHERENT 736 select SYS_SUPPORTS_64BIT_KERNEL 737 select SYS_SUPPORTS_BIG_ENDIAN 738 select SYS_SUPPORTS_HIGHMEM 739 select SYS_SUPPORTS_HOTPLUG_CPU 740 select SYS_HAS_EARLY_PRINTK 741 select SYS_HAS_CPU_CAVIUM_OCTEON 742 select SWAP_IO_SPACE 743 select HW_HAS_PCI 744 select ARCH_SUPPORTS_MSI 745 select ZONE_DMA32 746 select USB_ARCH_HAS_OHCI 747 select USB_ARCH_HAS_EHCI 748 select HOLES_IN_ZONE 749 help 750 This option supports all of the Octeon reference boards from Cavium 751 Networks. It builds a kernel that dynamically determines the Octeon 752 CPU type and supports all known board reference implementations. 753 Some of the supported boards are: 754 EBT3000 755 EBH3000 756 EBH3100 757 Thunder 758 Kodama 759 Hikari 760 Say Y here for most Octeon reference boards. 761 762config NLM_XLR_BOARD 763 bool "Netlogic XLR/XLS based systems" 764 depends on EXPERIMENTAL 765 select BOOT_ELF32 766 select NLM_COMMON 767 select NLM_XLR 768 select SYS_HAS_CPU_XLR 769 select SYS_SUPPORTS_SMP 770 select HW_HAS_PCI 771 select SWAP_IO_SPACE 772 select SYS_SUPPORTS_32BIT_KERNEL 773 select SYS_SUPPORTS_64BIT_KERNEL 774 select 64BIT_PHYS_ADDR 775 select SYS_SUPPORTS_BIG_ENDIAN 776 select SYS_SUPPORTS_HIGHMEM 777 select DMA_COHERENT 778 select NR_CPUS_DEFAULT_32 779 select CEVT_R4K 780 select CSRC_R4K 781 select IRQ_CPU 782 select ZONE_DMA if 64BIT 783 select SYNC_R4K 784 select SYS_HAS_EARLY_PRINTK 785 help 786 Support for systems based on Netlogic XLR and XLS processors. 787 Say Y here if you have a XLR or XLS based board. 788 789endchoice 790 791source "arch/mips/alchemy/Kconfig" 792source "arch/mips/ath79/Kconfig" 793source "arch/mips/bcm47xx/Kconfig" 794source "arch/mips/bcm63xx/Kconfig" 795source "arch/mips/jazz/Kconfig" 796source "arch/mips/jz4740/Kconfig" 797source "arch/mips/lantiq/Kconfig" 798source "arch/mips/lasat/Kconfig" 799source "arch/mips/pmc-sierra/Kconfig" 800source "arch/mips/powertv/Kconfig" 801source "arch/mips/sgi-ip27/Kconfig" 802source "arch/mips/sibyte/Kconfig" 803source "arch/mips/txx9/Kconfig" 804source "arch/mips/vr41xx/Kconfig" 805source "arch/mips/cavium-octeon/Kconfig" 806source "arch/mips/loongson/Kconfig" 807source "arch/mips/netlogic/Kconfig" 808 809endmenu 810 811config RWSEM_GENERIC_SPINLOCK 812 bool 813 default y 814 815config RWSEM_XCHGADD_ALGORITHM 816 bool 817 818config ARCH_HAS_ILOG2_U32 819 bool 820 default n 821 822config ARCH_HAS_ILOG2_U64 823 bool 824 default n 825 826config GENERIC_HWEIGHT 827 bool 828 default y 829 830config GENERIC_CALIBRATE_DELAY 831 bool 832 default y 833 834config GENERIC_CLOCKEVENTS 835 bool 836 default y 837 838config GENERIC_CMOS_UPDATE 839 bool 840 default y 841 842config SCHED_OMIT_FRAME_POINTER 843 bool 844 default y 845 846# 847# Select some configuration options automatically based on user selections. 848# 849config ARC 850 bool 851 852config ARCH_MAY_HAVE_PC_FDC 853 bool 854 855config BOOT_RAW 856 bool 857 858config CEVT_BCM1480 859 bool 860 861config CEVT_DS1287 862 bool 863 864config CEVT_GT641XX 865 bool 866 867config CEVT_R4K_LIB 868 bool 869 870config CEVT_R4K 871 select CEVT_R4K_LIB 872 bool 873 874config CEVT_SB1250 875 bool 876 877config CEVT_TXX9 878 bool 879 880config CSRC_BCM1480 881 bool 882 883config CSRC_IOASIC 884 bool 885 886config CSRC_POWERTV 887 bool 888 889config CSRC_R4K_LIB 890 bool 891 892config CSRC_R4K 893 select CSRC_R4K_LIB 894 bool 895 896config CSRC_SB1250 897 bool 898 899config GPIO_TXX9 900 select GENERIC_GPIO 901 select ARCH_REQUIRE_GPIOLIB 902 bool 903 904config CFE 905 bool 906 907config ARCH_DMA_ADDR_T_64BIT 908 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT 909 910config DMA_COHERENT 911 bool 912 913config DMA_NONCOHERENT 914 bool 915 select NEED_DMA_MAP_STATE 916 917config NEED_DMA_MAP_STATE 918 bool 919 920config SYS_HAS_EARLY_PRINTK 921 bool 922 923config HOTPLUG_CPU 924 bool "Support for hot-pluggable CPUs" 925 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU 926 help 927 Say Y here to allow turning CPUs off and on. CPUs can be 928 controlled through /sys/devices/system/cpu. 929 (Note: power management support will enable this option 930 automatically on SMP systems. ) 931 Say N if you want to disable CPU hotplug. 932 933config SYS_SUPPORTS_HOTPLUG_CPU 934 bool 935 936config I8259 937 bool 938 939config MIPS_BONITO64 940 bool 941 942config MIPS_MSC 943 bool 944 945config MIPS_NILE4 946 bool 947 948config MIPS_DISABLE_OBSOLETE_IDE 949 bool 950 951config SYNC_R4K 952 bool 953 954config MIPS_MACHINE 955 def_bool n 956 957config NO_IOPORT 958 def_bool n 959 960config GENERIC_ISA_DMA 961 bool 962 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 963 select ISA_DMA_API 964 965config GENERIC_ISA_DMA_SUPPORT_BROKEN 966 bool 967 select GENERIC_ISA_DMA 968 969config ISA_DMA_API 970 bool 971 972config GENERIC_GPIO 973 bool 974 975config HOLES_IN_ZONE 976 bool 977 978# 979# Endianess selection. Sufficiently obscure so many users don't know what to 980# answer,so we try hard to limit the available choices. Also the use of a 981# choice statement should be more obvious to the user. 982# 983choice 984 prompt "Endianess selection" 985 help 986 Some MIPS machines can be configured for either little or big endian 987 byte order. These modes require different kernels and a different 988 Linux distribution. In general there is one preferred byteorder for a 989 particular system but some systems are just as commonly used in the 990 one or the other endianness. 991 992config CPU_BIG_ENDIAN 993 bool "Big endian" 994 depends on SYS_SUPPORTS_BIG_ENDIAN 995 996config CPU_LITTLE_ENDIAN 997 bool "Little endian" 998 depends on SYS_SUPPORTS_LITTLE_ENDIAN 999 help 1000 1001endchoice 1002 1003config EXPORT_UASM 1004 bool 1005 1006config SYS_SUPPORTS_APM_EMULATION 1007 bool 1008 1009config SYS_SUPPORTS_BIG_ENDIAN 1010 bool 1011 1012config SYS_SUPPORTS_LITTLE_ENDIAN 1013 bool 1014 1015config SYS_SUPPORTS_HUGETLBFS 1016 bool 1017 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT 1018 default y 1019 1020config IRQ_CPU 1021 bool 1022 1023config IRQ_CPU_RM7K 1024 bool 1025 1026config IRQ_CPU_RM9K 1027 bool 1028 1029config IRQ_MSP_SLP 1030 bool 1031 1032config IRQ_MSP_CIC 1033 bool 1034 1035config IRQ_TXX9 1036 bool 1037 1038config IRQ_GT641XX 1039 bool 1040 1041config IRQ_GIC 1042 bool 1043 1044config MIPS_BOARDS_GEN 1045 bool 1046 1047config PCI_GT64XXX_PCI0 1048 bool 1049 1050config NO_EXCEPT_FILL 1051 bool 1052 1053config MIPS_RM9122 1054 bool 1055 select SERIAL_RM9000 1056 1057config SOC_EMMA2RH 1058 bool 1059 select CEVT_R4K 1060 select CSRC_R4K 1061 select DMA_NONCOHERENT 1062 select IRQ_CPU 1063 select SWAP_IO_SPACE 1064 select SYS_HAS_CPU_R5500 1065 select SYS_SUPPORTS_32BIT_KERNEL 1066 select SYS_SUPPORTS_64BIT_KERNEL 1067 select SYS_SUPPORTS_BIG_ENDIAN 1068 1069config SOC_PNX833X 1070 bool 1071 select CEVT_R4K 1072 select CSRC_R4K 1073 select IRQ_CPU 1074 select DMA_NONCOHERENT 1075 select SYS_HAS_CPU_MIPS32_R2 1076 select SYS_SUPPORTS_32BIT_KERNEL 1077 select SYS_SUPPORTS_LITTLE_ENDIAN 1078 select SYS_SUPPORTS_BIG_ENDIAN 1079 select GENERIC_GPIO 1080 select CPU_MIPSR2_IRQ_VI 1081 1082config SOC_PNX8335 1083 bool 1084 select SOC_PNX833X 1085 1086config PNX8550 1087 bool 1088 select SOC_PNX8550 1089 1090config SOC_PNX8550 1091 bool 1092 select DMA_NONCOHERENT 1093 select HW_HAS_PCI 1094 select SYS_HAS_CPU_MIPS32_R1 1095 select SYS_HAS_EARLY_PRINTK 1096 select SYS_SUPPORTS_32BIT_KERNEL 1097 select GENERIC_GPIO 1098 1099config SWAP_IO_SPACE 1100 bool 1101 1102config SERIAL_RM9000 1103 bool 1104 1105config SGI_HAS_INDYDOG 1106 bool 1107 1108config SGI_HAS_HAL2 1109 bool 1110 1111config SGI_HAS_SEEQ 1112 bool 1113 1114config SGI_HAS_WD93 1115 bool 1116 1117config SGI_HAS_ZILOG 1118 bool 1119 1120config SGI_HAS_I8042 1121 bool 1122 1123config DEFAULT_SGI_PARTITION 1124 bool 1125 1126config ARC32 1127 bool 1128 1129config SNIPROM 1130 bool 1131 1132config BOOT_ELF32 1133 bool 1134 1135config MIPS_L1_CACHE_SHIFT 1136 int 1137 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL 1138 default "6" if MIPS_CPU_SCACHE 1139 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON 1140 default "5" 1141 1142config HAVE_STD_PC_SERIAL_PORT 1143 bool 1144 1145config ARC_CONSOLE 1146 bool "ARC console support" 1147 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1148 1149config ARC_MEMORY 1150 bool 1151 depends on MACH_JAZZ || SNI_RM || SGI_IP32 1152 default y 1153 1154config ARC_PROMLIB 1155 bool 1156 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 1157 default y 1158 1159config ARC64 1160 bool 1161 1162config BOOT_ELF64 1163 bool 1164 1165menu "CPU selection" 1166 1167choice 1168 prompt "CPU type" 1169 default CPU_R4X00 1170 1171config CPU_LOONGSON2E 1172 bool "Loongson 2E" 1173 depends on SYS_HAS_CPU_LOONGSON2E 1174 select CPU_LOONGSON2 1175 help 1176 The Loongson 2E processor implements the MIPS III instruction set 1177 with many extensions. 1178 1179 It has an internal FPGA northbridge, which is compatible to 1180 bonito64. 1181 1182config CPU_LOONGSON2F 1183 bool "Loongson 2F" 1184 depends on SYS_HAS_CPU_LOONGSON2F 1185 select CPU_LOONGSON2 1186 select GENERIC_GPIO 1187 select ARCH_REQUIRE_GPIOLIB 1188 help 1189 The Loongson 2F processor implements the MIPS III instruction set 1190 with many extensions. 1191 1192 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1193 have a similar programming interface with FPGA northbridge used in 1194 Loongson2E. 1195 1196config CPU_MIPS32_R1 1197 bool "MIPS32 Release 1" 1198 depends on SYS_HAS_CPU_MIPS32_R1 1199 select CPU_HAS_PREFETCH 1200 select CPU_SUPPORTS_32BIT_KERNEL 1201 select CPU_SUPPORTS_HIGHMEM 1202 help 1203 Choose this option to build a kernel for release 1 or later of the 1204 MIPS32 architecture. Most modern embedded systems with a 32-bit 1205 MIPS processor are based on a MIPS32 processor. If you know the 1206 specific type of processor in your system, choose those that one 1207 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1208 Release 2 of the MIPS32 architecture is available since several 1209 years so chances are you even have a MIPS32 Release 2 processor 1210 in which case you should choose CPU_MIPS32_R2 instead for better 1211 performance. 1212 1213config CPU_MIPS32_R2 1214 bool "MIPS32 Release 2" 1215 depends on SYS_HAS_CPU_MIPS32_R2 1216 select CPU_HAS_PREFETCH 1217 select CPU_SUPPORTS_32BIT_KERNEL 1218 select CPU_SUPPORTS_HIGHMEM 1219 help 1220 Choose this option to build a kernel for release 2 or later of the 1221 MIPS32 architecture. Most modern embedded systems with a 32-bit 1222 MIPS processor are based on a MIPS32 processor. If you know the 1223 specific type of processor in your system, choose those that one 1224 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1225 1226config CPU_MIPS64_R1 1227 bool "MIPS64 Release 1" 1228 depends on SYS_HAS_CPU_MIPS64_R1 1229 select CPU_HAS_PREFETCH 1230 select CPU_SUPPORTS_32BIT_KERNEL 1231 select CPU_SUPPORTS_64BIT_KERNEL 1232 select CPU_SUPPORTS_HIGHMEM 1233 select CPU_SUPPORTS_HUGEPAGES 1234 help 1235 Choose this option to build a kernel for release 1 or later of the 1236 MIPS64 architecture. Many modern embedded systems with a 64-bit 1237 MIPS processor are based on a MIPS64 processor. If you know the 1238 specific type of processor in your system, choose those that one 1239 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1240 Release 2 of the MIPS64 architecture is available since several 1241 years so chances are you even have a MIPS64 Release 2 processor 1242 in which case you should choose CPU_MIPS64_R2 instead for better 1243 performance. 1244 1245config CPU_MIPS64_R2 1246 bool "MIPS64 Release 2" 1247 depends on SYS_HAS_CPU_MIPS64_R2 1248 select CPU_HAS_PREFETCH 1249 select CPU_SUPPORTS_32BIT_KERNEL 1250 select CPU_SUPPORTS_64BIT_KERNEL 1251 select CPU_SUPPORTS_HIGHMEM 1252 select CPU_SUPPORTS_HUGEPAGES 1253 help 1254 Choose this option to build a kernel for release 2 or later of the 1255 MIPS64 architecture. Many modern embedded systems with a 64-bit 1256 MIPS processor are based on a MIPS64 processor. If you know the 1257 specific type of processor in your system, choose those that one 1258 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1259 1260config CPU_R3000 1261 bool "R3000" 1262 depends on SYS_HAS_CPU_R3000 1263 select CPU_HAS_WB 1264 select CPU_SUPPORTS_32BIT_KERNEL 1265 select CPU_SUPPORTS_HIGHMEM 1266 help 1267 Please make sure to pick the right CPU type. Linux/MIPS is not 1268 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1269 *not* work on R4000 machines and vice versa. However, since most 1270 of the supported machines have an R4000 (or similar) CPU, R4x00 1271 might be a safe bet. If the resulting kernel does not work, 1272 try to recompile with R3000. 1273 1274config CPU_TX39XX 1275 bool "R39XX" 1276 depends on SYS_HAS_CPU_TX39XX 1277 select CPU_SUPPORTS_32BIT_KERNEL 1278 1279config CPU_VR41XX 1280 bool "R41xx" 1281 depends on SYS_HAS_CPU_VR41XX 1282 select CPU_SUPPORTS_32BIT_KERNEL 1283 select CPU_SUPPORTS_64BIT_KERNEL 1284 help 1285 The options selects support for the NEC VR4100 series of processors. 1286 Only choose this option if you have one of these processors as a 1287 kernel built with this option will not run on any other type of 1288 processor or vice versa. 1289 1290config CPU_R4300 1291 bool "R4300" 1292 depends on SYS_HAS_CPU_R4300 1293 select CPU_SUPPORTS_32BIT_KERNEL 1294 select CPU_SUPPORTS_64BIT_KERNEL 1295 help 1296 MIPS Technologies R4300-series processors. 1297 1298config CPU_R4X00 1299 bool "R4x00" 1300 depends on SYS_HAS_CPU_R4X00 1301 select CPU_SUPPORTS_32BIT_KERNEL 1302 select CPU_SUPPORTS_64BIT_KERNEL 1303 help 1304 MIPS Technologies R4000-series processors other than 4300, including 1305 the R4000, R4400, R4600, and 4700. 1306 1307config CPU_TX49XX 1308 bool "R49XX" 1309 depends on SYS_HAS_CPU_TX49XX 1310 select CPU_HAS_PREFETCH 1311 select CPU_SUPPORTS_32BIT_KERNEL 1312 select CPU_SUPPORTS_64BIT_KERNEL 1313 1314config CPU_R5000 1315 bool "R5000" 1316 depends on SYS_HAS_CPU_R5000 1317 select CPU_SUPPORTS_32BIT_KERNEL 1318 select CPU_SUPPORTS_64BIT_KERNEL 1319 help 1320 MIPS Technologies R5000-series processors other than the Nevada. 1321 1322config CPU_R5432 1323 bool "R5432" 1324 depends on SYS_HAS_CPU_R5432 1325 select CPU_SUPPORTS_32BIT_KERNEL 1326 select CPU_SUPPORTS_64BIT_KERNEL 1327 1328config CPU_R5500 1329 bool "R5500" 1330 depends on SYS_HAS_CPU_R5500 1331 select CPU_SUPPORTS_32BIT_KERNEL 1332 select CPU_SUPPORTS_64BIT_KERNEL 1333 select CPU_SUPPORTS_HUGEPAGES 1334 help 1335 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1336 instruction set. 1337 1338config CPU_R6000 1339 bool "R6000" 1340 depends on EXPERIMENTAL 1341 depends on SYS_HAS_CPU_R6000 1342 select CPU_SUPPORTS_32BIT_KERNEL 1343 help 1344 MIPS Technologies R6000 and R6000A series processors. Note these 1345 processors are extremely rare and the support for them is incomplete. 1346 1347config CPU_NEVADA 1348 bool "RM52xx" 1349 depends on SYS_HAS_CPU_NEVADA 1350 select CPU_SUPPORTS_32BIT_KERNEL 1351 select CPU_SUPPORTS_64BIT_KERNEL 1352 help 1353 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1354 1355config CPU_R8000 1356 bool "R8000" 1357 depends on EXPERIMENTAL 1358 depends on SYS_HAS_CPU_R8000 1359 select CPU_HAS_PREFETCH 1360 select CPU_SUPPORTS_64BIT_KERNEL 1361 help 1362 MIPS Technologies R8000 processors. Note these processors are 1363 uncommon and the support for them is incomplete. 1364 1365config CPU_R10000 1366 bool "R10000" 1367 depends on SYS_HAS_CPU_R10000 1368 select CPU_HAS_PREFETCH 1369 select CPU_SUPPORTS_32BIT_KERNEL 1370 select CPU_SUPPORTS_64BIT_KERNEL 1371 select CPU_SUPPORTS_HIGHMEM 1372 help 1373 MIPS Technologies R10000-series processors. 1374 1375config CPU_RM7000 1376 bool "RM7000" 1377 depends on SYS_HAS_CPU_RM7000 1378 select CPU_HAS_PREFETCH 1379 select CPU_SUPPORTS_32BIT_KERNEL 1380 select CPU_SUPPORTS_64BIT_KERNEL 1381 select CPU_SUPPORTS_HIGHMEM 1382 1383config CPU_RM9000 1384 bool "RM9000" 1385 depends on SYS_HAS_CPU_RM9000 1386 select CPU_HAS_PREFETCH 1387 select CPU_SUPPORTS_32BIT_KERNEL 1388 select CPU_SUPPORTS_64BIT_KERNEL 1389 select CPU_SUPPORTS_HIGHMEM 1390 select WEAK_ORDERING 1391 1392config CPU_SB1 1393 bool "SB1" 1394 depends on SYS_HAS_CPU_SB1 1395 select CPU_SUPPORTS_32BIT_KERNEL 1396 select CPU_SUPPORTS_64BIT_KERNEL 1397 select CPU_SUPPORTS_HIGHMEM 1398 select WEAK_ORDERING 1399 1400config CPU_CAVIUM_OCTEON 1401 bool "Cavium Octeon processor" 1402 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1403 select CPU_HAS_PREFETCH 1404 select CPU_SUPPORTS_64BIT_KERNEL 1405 select SYS_SUPPORTS_SMP 1406 select NR_CPUS_DEFAULT_16 1407 select WEAK_ORDERING 1408 select CPU_SUPPORTS_HIGHMEM 1409 select CPU_SUPPORTS_HUGEPAGES 1410 help 1411 The Cavium Octeon processor is a highly integrated chip containing 1412 many ethernet hardware widgets for networking tasks. The processor 1413 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1414 Full details can be found at http://www.caviumnetworks.com. 1415 1416config CPU_BMIPS3300 1417 bool "BMIPS3300" 1418 depends on SYS_HAS_CPU_BMIPS3300 1419 select DMA_NONCOHERENT 1420 select IRQ_CPU 1421 select SWAP_IO_SPACE 1422 select SYS_SUPPORTS_32BIT_KERNEL 1423 select WEAK_ORDERING 1424 help 1425 Broadcom BMIPS3300 processors. 1426 1427config CPU_BMIPS4350 1428 bool "BMIPS4350" 1429 depends on SYS_HAS_CPU_BMIPS4350 1430 select CPU_SUPPORTS_32BIT_KERNEL 1431 select DMA_NONCOHERENT 1432 select IRQ_CPU 1433 select SWAP_IO_SPACE 1434 select SYS_SUPPORTS_SMP 1435 select SYS_SUPPORTS_HOTPLUG_CPU 1436 select WEAK_ORDERING 1437 help 1438 Broadcom BMIPS4350 ("VIPER") processors. 1439 1440config CPU_BMIPS4380 1441 bool "BMIPS4380" 1442 depends on SYS_HAS_CPU_BMIPS4380 1443 select CPU_SUPPORTS_32BIT_KERNEL 1444 select DMA_NONCOHERENT 1445 select IRQ_CPU 1446 select SWAP_IO_SPACE 1447 select SYS_SUPPORTS_SMP 1448 select SYS_SUPPORTS_HOTPLUG_CPU 1449 select WEAK_ORDERING 1450 help 1451 Broadcom BMIPS4380 processors. 1452 1453config CPU_BMIPS5000 1454 bool "BMIPS5000" 1455 depends on SYS_HAS_CPU_BMIPS5000 1456 select CPU_SUPPORTS_32BIT_KERNEL 1457 select CPU_SUPPORTS_HIGHMEM 1458 select DMA_NONCOHERENT 1459 select IRQ_CPU 1460 select SWAP_IO_SPACE 1461 select SYS_SUPPORTS_SMP 1462 select SYS_SUPPORTS_HOTPLUG_CPU 1463 select WEAK_ORDERING 1464 help 1465 Broadcom BMIPS5000 processors. 1466 1467config CPU_XLR 1468 bool "Netlogic XLR SoC" 1469 depends on SYS_HAS_CPU_XLR 1470 select CPU_SUPPORTS_32BIT_KERNEL 1471 select CPU_SUPPORTS_64BIT_KERNEL 1472 select CPU_SUPPORTS_HIGHMEM 1473 select WEAK_ORDERING 1474 select WEAK_REORDERING_BEYOND_LLSC 1475 select CPU_SUPPORTS_HUGEPAGES 1476 help 1477 Netlogic Microsystems XLR/XLS processors. 1478endchoice 1479 1480if CPU_LOONGSON2F 1481config CPU_NOP_WORKAROUNDS 1482 bool 1483 1484config CPU_JUMP_WORKAROUNDS 1485 bool 1486 1487config CPU_LOONGSON2F_WORKAROUNDS 1488 bool "Loongson 2F Workarounds" 1489 default y 1490 select CPU_NOP_WORKAROUNDS 1491 select CPU_JUMP_WORKAROUNDS 1492 help 1493 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1494 require workarounds. Without workarounds the system may hang 1495 unexpectedly. For more information please refer to the gas 1496 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1497 1498 Loongson 2F03 and later have fixed these issues and no workarounds 1499 are needed. The workarounds have no significant side effect on them 1500 but may decrease the performance of the system so this option should 1501 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1502 systems. 1503 1504 If unsure, please say Y. 1505endif # CPU_LOONGSON2F 1506 1507config SYS_SUPPORTS_ZBOOT 1508 bool 1509 select HAVE_KERNEL_GZIP 1510 select HAVE_KERNEL_BZIP2 1511 select HAVE_KERNEL_LZMA 1512 select HAVE_KERNEL_LZO 1513 1514config SYS_SUPPORTS_ZBOOT_UART16550 1515 bool 1516 select SYS_SUPPORTS_ZBOOT 1517 1518config CPU_LOONGSON2 1519 bool 1520 select CPU_SUPPORTS_32BIT_KERNEL 1521 select CPU_SUPPORTS_64BIT_KERNEL 1522 select CPU_SUPPORTS_HIGHMEM 1523 1524config SYS_HAS_CPU_LOONGSON2E 1525 bool 1526 1527config SYS_HAS_CPU_LOONGSON2F 1528 bool 1529 select CPU_SUPPORTS_CPUFREQ 1530 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1531 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1532 1533config SYS_HAS_CPU_MIPS32_R1 1534 bool 1535 1536config SYS_HAS_CPU_MIPS32_R2 1537 bool 1538 1539config SYS_HAS_CPU_MIPS64_R1 1540 bool 1541 1542config SYS_HAS_CPU_MIPS64_R2 1543 bool 1544 1545config SYS_HAS_CPU_R3000 1546 bool 1547 1548config SYS_HAS_CPU_TX39XX 1549 bool 1550 1551config SYS_HAS_CPU_VR41XX 1552 bool 1553 1554config SYS_HAS_CPU_R4300 1555 bool 1556 1557config SYS_HAS_CPU_R4X00 1558 bool 1559 1560config SYS_HAS_CPU_TX49XX 1561 bool 1562 1563config SYS_HAS_CPU_R5000 1564 bool 1565 1566config SYS_HAS_CPU_R5432 1567 bool 1568 1569config SYS_HAS_CPU_R5500 1570 bool 1571 1572config SYS_HAS_CPU_R6000 1573 bool 1574 1575config SYS_HAS_CPU_NEVADA 1576 bool 1577 1578config SYS_HAS_CPU_R8000 1579 bool 1580 1581config SYS_HAS_CPU_R10000 1582 bool 1583 1584config SYS_HAS_CPU_RM7000 1585 bool 1586 1587config SYS_HAS_CPU_RM9000 1588 bool 1589 1590config SYS_HAS_CPU_SB1 1591 bool 1592 1593config SYS_HAS_CPU_CAVIUM_OCTEON 1594 bool 1595 1596config SYS_HAS_CPU_BMIPS3300 1597 bool 1598 1599config SYS_HAS_CPU_BMIPS4350 1600 bool 1601 1602config SYS_HAS_CPU_BMIPS4380 1603 bool 1604 1605config SYS_HAS_CPU_BMIPS5000 1606 bool 1607 1608config SYS_HAS_CPU_XLR 1609 bool 1610 1611# 1612# CPU may reorder R->R, R->W, W->R, W->W 1613# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 1614# 1615config WEAK_ORDERING 1616 bool 1617 1618# 1619# CPU may reorder reads and writes beyond LL/SC 1620# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 1621# 1622config WEAK_REORDERING_BEYOND_LLSC 1623 bool 1624endmenu 1625 1626# 1627# These two indicate any level of the MIPS32 and MIPS64 architecture 1628# 1629config CPU_MIPS32 1630 bool 1631 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 1632 1633config CPU_MIPS64 1634 bool 1635 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 1636 1637# 1638# These two indicate the revision of the architecture, either Release 1 or Release 2 1639# 1640config CPU_MIPSR1 1641 bool 1642 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 1643 1644config CPU_MIPSR2 1645 bool 1646 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 1647 1648config SYS_SUPPORTS_32BIT_KERNEL 1649 bool 1650config SYS_SUPPORTS_64BIT_KERNEL 1651 bool 1652config CPU_SUPPORTS_32BIT_KERNEL 1653 bool 1654config CPU_SUPPORTS_64BIT_KERNEL 1655 bool 1656config CPU_SUPPORTS_CPUFREQ 1657 bool 1658config CPU_SUPPORTS_ADDRWINCFG 1659 bool 1660config CPU_SUPPORTS_HUGEPAGES 1661 bool 1662config CPU_SUPPORTS_UNCACHED_ACCELERATED 1663 bool 1664config MIPS_PGD_C0_CONTEXT 1665 bool 1666 default y if 64BIT && CPU_MIPSR2 1667 1668# 1669# Set to y for ptrace access to watch registers. 1670# 1671config HARDWARE_WATCHPOINTS 1672 bool 1673 default y if CPU_MIPSR1 || CPU_MIPSR2 1674 1675menu "Kernel type" 1676 1677choice 1678 1679 prompt "Kernel code model" 1680 help 1681 You should only select this option if you have a workload that 1682 actually benefits from 64-bit processing or if your machine has 1683 large memory. You will only be presented a single option in this 1684 menu if your system does not support both 32-bit and 64-bit kernels. 1685 1686config 32BIT 1687 bool "32-bit kernel" 1688 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 1689 select TRAD_SIGNALS 1690 help 1691 Select this option if you want to build a 32-bit kernel. 1692config 64BIT 1693 bool "64-bit kernel" 1694 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 1695 select HAVE_SYSCALL_WRAPPERS 1696 help 1697 Select this option if you want to build a 64-bit kernel. 1698 1699endchoice 1700 1701choice 1702 prompt "Kernel page size" 1703 default PAGE_SIZE_4KB 1704 1705config PAGE_SIZE_4KB 1706 bool "4kB" 1707 depends on !CPU_LOONGSON2 1708 help 1709 This option select the standard 4kB Linux page size. On some 1710 R3000-family processors this is the only available page size. Using 1711 4kB page size will minimize memory consumption and is therefore 1712 recommended for low memory systems. 1713 1714config PAGE_SIZE_8KB 1715 bool "8kB" 1716 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON 1717 help 1718 Using 8kB page size will result in higher performance kernel at 1719 the price of higher memory consumption. This option is available 1720 only on R8000 and cnMIPS processors. Note that you will need a 1721 suitable Linux distribution to support this. 1722 1723config PAGE_SIZE_16KB 1724 bool "16kB" 1725 depends on !CPU_R3000 && !CPU_TX39XX 1726 help 1727 Using 16kB page size will result in higher performance kernel at 1728 the price of higher memory consumption. This option is available on 1729 all non-R3000 family processors. Note that you will need a suitable 1730 Linux distribution to support this. 1731 1732config PAGE_SIZE_32KB 1733 bool "32kB" 1734 depends on CPU_CAVIUM_OCTEON 1735 help 1736 Using 32kB page size will result in higher performance kernel at 1737 the price of higher memory consumption. This option is available 1738 only on cnMIPS cores. Note that you will need a suitable Linux 1739 distribution to support this. 1740 1741config PAGE_SIZE_64KB 1742 bool "64kB" 1743 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX 1744 help 1745 Using 64kB page size will result in higher performance kernel at 1746 the price of higher memory consumption. This option is available on 1747 all non-R3000 family processor. Not that at the time of this 1748 writing this option is still high experimental. 1749 1750endchoice 1751 1752config FORCE_MAX_ZONEORDER 1753 int "Maximum zone order" 1754 range 13 64 if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_32KB 1755 default "13" if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_32KB 1756 range 12 64 if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_16KB 1757 default "12" if SYS_SUPPORTS_HUGETLBFS && PAGE_SIZE_16KB 1758 range 11 64 1759 default "11" 1760 help 1761 The kernel memory allocator divides physically contiguous memory 1762 blocks into "zones", where each zone is a power of two number of 1763 pages. This option selects the largest power of two that the kernel 1764 keeps in the memory allocator. If you need to allocate very large 1765 blocks of physically contiguous memory, then you may need to 1766 increase this value. 1767 1768 This config option is actually maximum order plus one. For example, 1769 a value of 11 means that the largest free memory block is 2^10 pages. 1770 1771 The page size is not necessarily 4KB. Keep this in mind 1772 when choosing a value for this option. 1773 1774config BOARD_SCACHE 1775 bool 1776 1777config IP22_CPU_SCACHE 1778 bool 1779 select BOARD_SCACHE 1780 1781# 1782# Support for a MIPS32 / MIPS64 style S-caches 1783# 1784config MIPS_CPU_SCACHE 1785 bool 1786 select BOARD_SCACHE 1787 1788config R5000_CPU_SCACHE 1789 bool 1790 select BOARD_SCACHE 1791 1792config RM7000_CPU_SCACHE 1793 bool 1794 select BOARD_SCACHE 1795 1796config SIBYTE_DMA_PAGEOPS 1797 bool "Use DMA to clear/copy pages" 1798 depends on CPU_SB1 1799 help 1800 Instead of using the CPU to zero and copy pages, use a Data Mover 1801 channel. These DMA channels are otherwise unused by the standard 1802 SiByte Linux port. Seems to give a small performance benefit. 1803 1804config CPU_HAS_PREFETCH 1805 bool 1806 1807choice 1808 prompt "MIPS MT options" 1809 1810config MIPS_MT_DISABLED 1811 bool "Disable multithreading support." 1812 help 1813 Use this option if your workload can't take advantage of 1814 MIPS hardware multithreading support. On systems that don't have 1815 the option of an MT-enabled processor this option will be the only 1816 option in this menu. 1817 1818config MIPS_MT_SMP 1819 bool "Use 1 TC on each available VPE for SMP" 1820 depends on SYS_SUPPORTS_MULTITHREADING 1821 select CPU_MIPSR2_IRQ_VI 1822 select CPU_MIPSR2_IRQ_EI 1823 select MIPS_MT 1824 select NR_CPUS_DEFAULT_2 1825 select SMP 1826 select SYS_SUPPORTS_SCHED_SMT if SMP 1827 select SYS_SUPPORTS_SMP 1828 select SMP_UP 1829 help 1830 This is a kernel model which is known a VSMP but lately has been 1831 marketesed into SMVP. 1832 Virtual SMP uses the processor's VPEs to implement virtual 1833 processors. In currently available configuration of the 34K processor 1834 this allows for a dual processor. Both processors will share the same 1835 primary caches; each will obtain the half of the TLB for it's own 1836 exclusive use. For a layman this model can be described as similar to 1837 what Intel calls Hyperthreading. 1838 1839 For further information see http://www.linux-mips.org/wiki/34K#VSMP 1840 1841config MIPS_MT_SMTC 1842 bool "SMTC: Use all TCs on all VPEs for SMP" 1843 depends on CPU_MIPS32_R2 1844 #depends on CPU_MIPS64_R2 # once there is hardware ... 1845 depends on SYS_SUPPORTS_MULTITHREADING 1846 select CPU_MIPSR2_IRQ_VI 1847 select CPU_MIPSR2_IRQ_EI 1848 select MIPS_MT 1849 select NR_CPUS_DEFAULT_8 1850 select SMP 1851 select SYS_SUPPORTS_SMP 1852 select SMP_UP 1853 help 1854 This is a kernel model which is known a SMTC or lately has been 1855 marketesed into SMVP. 1856 is presenting the available TC's of the core as processors to Linux. 1857 On currently available 34K processors this means a Linux system will 1858 see up to 5 processors. The implementation of the SMTC kernel differs 1859 significantly from VSMP and cannot efficiently coexist in the same 1860 kernel binary so the choice between VSMP and SMTC is a compile time 1861 decision. 1862 1863 For further information see http://www.linux-mips.org/wiki/34K#SMTC 1864 1865endchoice 1866 1867config MIPS_MT 1868 bool 1869 1870config SCHED_SMT 1871 bool "SMT (multithreading) scheduler support" 1872 depends on SYS_SUPPORTS_SCHED_SMT 1873 default n 1874 help 1875 SMT scheduler support improves the CPU scheduler's decision making 1876 when dealing with MIPS MT enabled cores at a cost of slightly 1877 increased overhead in some places. If unsure say N here. 1878 1879config SYS_SUPPORTS_SCHED_SMT 1880 bool 1881 1882 1883config SYS_SUPPORTS_MULTITHREADING 1884 bool 1885 1886config MIPS_MT_FPAFF 1887 bool "Dynamic FPU affinity for FP-intensive threads" 1888 default y 1889 depends on MIPS_MT_SMP || MIPS_MT_SMTC 1890 1891config MIPS_VPE_LOADER 1892 bool "VPE loader support." 1893 depends on SYS_SUPPORTS_MULTITHREADING 1894 select CPU_MIPSR2_IRQ_VI 1895 select CPU_MIPSR2_IRQ_EI 1896 select MIPS_MT 1897 help 1898 Includes a loader for loading an elf relocatable object 1899 onto another VPE and running it. 1900 1901config MIPS_MT_SMTC_IM_BACKSTOP 1902 bool "Use per-TC register bits as backstop for inhibited IM bits" 1903 depends on MIPS_MT_SMTC 1904 default n 1905 help 1906 To support multiple TC microthreads acting as "CPUs" within 1907 a VPE, VPE-wide interrupt mask bits must be specially manipulated 1908 during interrupt handling. To support legacy drivers and interrupt 1909 controller management code, SMTC has a "backstop" to track and 1910 if necessary restore the interrupt mask. This has some performance 1911 impact on interrupt service overhead. 1912 1913config MIPS_MT_SMTC_IRQAFF 1914 bool "Support IRQ affinity API" 1915 depends on MIPS_MT_SMTC 1916 default n 1917 help 1918 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.) 1919 for SMTC Linux kernel. Requires platform support, of which 1920 an example can be found in the MIPS kernel i8259 and Malta 1921 platform code. Adds some overhead to interrupt dispatch, and 1922 should be used only if you know what you are doing. 1923 1924config MIPS_VPE_LOADER_TOM 1925 bool "Load VPE program into memory hidden from linux" 1926 depends on MIPS_VPE_LOADER 1927 default y 1928 help 1929 The loader can use memory that is present but has been hidden from 1930 Linux using the kernel command line option "mem=xxMB". It's up to 1931 you to ensure the amount you put in the option and the space your 1932 program requires is less or equal to the amount physically present. 1933 1934# this should possibly be in drivers/char, but it is rather cpu related. Hmmm 1935config MIPS_VPE_APSP_API 1936 bool "Enable support for AP/SP API (RTLX)" 1937 depends on MIPS_VPE_LOADER 1938 help 1939 1940config MIPS_APSP_KSPD 1941 bool "Enable KSPD" 1942 depends on MIPS_VPE_APSP_API 1943 default y 1944 help 1945 KSPD is a kernel daemon that accepts syscall requests from the SP 1946 side, actions them and returns the results. It also handles the 1947 "exit" syscall notifying other kernel modules the SP program is 1948 exiting. You probably want to say yes here. 1949 1950config MIPS_CMP 1951 bool "MIPS CMP framework support" 1952 depends on SYS_SUPPORTS_MIPS_CMP 1953 select SYNC_R4K 1954 select SYS_SUPPORTS_SMP 1955 select SYS_SUPPORTS_SCHED_SMT if SMP 1956 select WEAK_ORDERING 1957 default n 1958 help 1959 This is a placeholder option for the GCMP work. It will need to 1960 be handled differently... 1961 1962config SB1_PASS_1_WORKAROUNDS 1963 bool 1964 depends on CPU_SB1_PASS_1 1965 default y 1966 1967config SB1_PASS_2_WORKAROUNDS 1968 bool 1969 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 1970 default y 1971 1972config SB1_PASS_2_1_WORKAROUNDS 1973 bool 1974 depends on CPU_SB1 && CPU_SB1_PASS_2 1975 default y 1976 1977config 64BIT_PHYS_ADDR 1978 bool 1979 1980config ARCH_PHYS_ADDR_T_64BIT 1981 def_bool 64BIT_PHYS_ADDR 1982 1983config CPU_HAS_SMARTMIPS 1984 depends on SYS_SUPPORTS_SMARTMIPS 1985 bool "Support for the SmartMIPS ASE" 1986 help 1987 SmartMIPS is a extension of the MIPS32 architecture aimed at 1988 increased security at both hardware and software level for 1989 smartcards. Enabling this option will allow proper use of the 1990 SmartMIPS instructions by Linux applications. However a kernel with 1991 this option will not work on a MIPS core without SmartMIPS core. If 1992 you don't know you probably don't have SmartMIPS and should say N 1993 here. 1994 1995config CPU_HAS_WB 1996 bool 1997 1998# 1999# Vectored interrupt mode is an R2 feature 2000# 2001config CPU_MIPSR2_IRQ_VI 2002 bool 2003 2004# 2005# Extended interrupt mode is an R2 feature 2006# 2007config CPU_MIPSR2_IRQ_EI 2008 bool 2009 2010config CPU_HAS_SYNC 2011 bool 2012 depends on !CPU_R3000 2013 default y 2014 2015config GENERIC_CLOCKEVENTS_BROADCAST 2016 bool 2017 2018# 2019# CPU non-features 2020# 2021config CPU_DADDI_WORKAROUNDS 2022 bool 2023 2024config CPU_R4000_WORKAROUNDS 2025 bool 2026 select CPU_R4400_WORKAROUNDS 2027 2028config CPU_R4400_WORKAROUNDS 2029 bool 2030 2031# 2032# - Highmem only makes sense for the 32-bit kernel. 2033# - The current highmem code will only work properly on physically indexed 2034# caches such as R3000, SB1, R7000 or those that look like they're virtually 2035# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2036# moment we protect the user and offer the highmem option only on machines 2037# where it's known to be safe. This will not offer highmem on a few systems 2038# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2039# indexed CPUs but we're playing safe. 2040# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2041# know they might have memory configurations that could make use of highmem 2042# support. 2043# 2044config HIGHMEM 2045 bool "High Memory Support" 2046 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM 2047 2048config CPU_SUPPORTS_HIGHMEM 2049 bool 2050 2051config SYS_SUPPORTS_HIGHMEM 2052 bool 2053 2054config SYS_SUPPORTS_SMARTMIPS 2055 bool 2056 2057config ARCH_FLATMEM_ENABLE 2058 def_bool y 2059 depends on !NUMA && !CPU_LOONGSON2 2060 2061config ARCH_DISCONTIGMEM_ENABLE 2062 bool 2063 default y if SGI_IP27 2064 help 2065 Say Y to support efficient handling of discontiguous physical memory, 2066 for architectures which are either NUMA (Non-Uniform Memory Access) 2067 or have huge holes in the physical address space for other reasons. 2068 See <file:Documentation/vm/numa> for more. 2069 2070config ARCH_SPARSEMEM_ENABLE 2071 bool 2072 select SPARSEMEM_STATIC 2073 2074config NUMA 2075 bool "NUMA Support" 2076 depends on SYS_SUPPORTS_NUMA 2077 help 2078 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2079 Access). This option improves performance on systems with more 2080 than two nodes; on two node systems it is generally better to 2081 leave it disabled; on single node systems disable this option 2082 disabled. 2083 2084config SYS_SUPPORTS_NUMA 2085 bool 2086 2087config NODES_SHIFT 2088 int 2089 default "6" 2090 depends on NEED_MULTIPLE_NODES 2091 2092config HW_PERF_EVENTS 2093 bool "Enable hardware performance counter support for perf events" 2094 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON) 2095 default y 2096 help 2097 Enable hardware performance counter support for perf events. If 2098 disabled, perf events will use software events only. 2099 2100source "mm/Kconfig" 2101 2102config SMP 2103 bool "Multi-Processing support" 2104 depends on SYS_SUPPORTS_SMP 2105 select IRQ_PER_CPU 2106 select USE_GENERIC_SMP_HELPERS 2107 help 2108 This enables support for systems with more than one CPU. If you have 2109 a system with only one CPU, like most personal computers, say N. If 2110 you have a system with more than one CPU, say Y. 2111 2112 If you say N here, the kernel will run on single and multiprocessor 2113 machines, but will use only one CPU of a multiprocessor machine. If 2114 you say Y here, the kernel will run on many, but not all, 2115 singleprocessor machines. On a singleprocessor machine, the kernel 2116 will run faster if you say N here. 2117 2118 People using multiprocessor machines who say Y here should also say 2119 Y to "Enhanced Real Time Clock Support", below. 2120 2121 See also the SMP-HOWTO available at 2122 <http://www.tldp.org/docs.html#howto>. 2123 2124 If you don't know what to do here, say N. 2125 2126config SMP_UP 2127 bool 2128 2129config SYS_SUPPORTS_MIPS_CMP 2130 bool 2131 2132config SYS_SUPPORTS_SMP 2133 bool 2134 2135config NR_CPUS_DEFAULT_1 2136 bool 2137 2138config NR_CPUS_DEFAULT_2 2139 bool 2140 2141config NR_CPUS_DEFAULT_4 2142 bool 2143 2144config NR_CPUS_DEFAULT_8 2145 bool 2146 2147config NR_CPUS_DEFAULT_16 2148 bool 2149 2150config NR_CPUS_DEFAULT_32 2151 bool 2152 2153config NR_CPUS_DEFAULT_64 2154 bool 2155 2156config NR_CPUS 2157 int "Maximum number of CPUs (2-64)" 2158 range 1 64 if NR_CPUS_DEFAULT_1 2159 depends on SMP 2160 default "1" if NR_CPUS_DEFAULT_1 2161 default "2" if NR_CPUS_DEFAULT_2 2162 default "4" if NR_CPUS_DEFAULT_4 2163 default "8" if NR_CPUS_DEFAULT_8 2164 default "16" if NR_CPUS_DEFAULT_16 2165 default "32" if NR_CPUS_DEFAULT_32 2166 default "64" if NR_CPUS_DEFAULT_64 2167 help 2168 This allows you to specify the maximum number of CPUs which this 2169 kernel will support. The maximum supported value is 32 for 32-bit 2170 kernel and 64 for 64-bit kernels; the minimum value which makes 2171 sense is 1 for Qemu (useful only for kernel debugging purposes) 2172 and 2 for all others. 2173 2174 This is purely to save memory - each supported CPU adds 2175 approximately eight kilobytes to the kernel image. For best 2176 performance should round up your number of processors to the next 2177 power of two. 2178 2179source "kernel/time/Kconfig" 2180 2181# 2182# Timer Interrupt Frequency Configuration 2183# 2184 2185choice 2186 prompt "Timer frequency" 2187 default HZ_250 2188 help 2189 Allows the configuration of the timer frequency. 2190 2191 config HZ_48 2192 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2193 2194 config HZ_100 2195 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2196 2197 config HZ_128 2198 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2199 2200 config HZ_250 2201 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2202 2203 config HZ_256 2204 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2205 2206 config HZ_1000 2207 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2208 2209 config HZ_1024 2210 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2211 2212endchoice 2213 2214config SYS_SUPPORTS_48HZ 2215 bool 2216 2217config SYS_SUPPORTS_100HZ 2218 bool 2219 2220config SYS_SUPPORTS_128HZ 2221 bool 2222 2223config SYS_SUPPORTS_250HZ 2224 bool 2225 2226config SYS_SUPPORTS_256HZ 2227 bool 2228 2229config SYS_SUPPORTS_1000HZ 2230 bool 2231 2232config SYS_SUPPORTS_1024HZ 2233 bool 2234 2235config SYS_SUPPORTS_ARBIT_HZ 2236 bool 2237 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \ 2238 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \ 2239 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \ 2240 !SYS_SUPPORTS_1024HZ 2241 2242config HZ 2243 int 2244 default 48 if HZ_48 2245 default 100 if HZ_100 2246 default 128 if HZ_128 2247 default 250 if HZ_250 2248 default 256 if HZ_256 2249 default 1000 if HZ_1000 2250 default 1024 if HZ_1024 2251 2252source "kernel/Kconfig.preempt" 2253 2254config KEXEC 2255 bool "Kexec system call (EXPERIMENTAL)" 2256 depends on EXPERIMENTAL 2257 help 2258 kexec is a system call that implements the ability to shutdown your 2259 current kernel, and to start another kernel. It is like a reboot 2260 but it is independent of the system firmware. And like a reboot 2261 you can start any kernel with it, not just Linux. 2262 2263 The name comes from the similarity to the exec system call. 2264 2265 It is an ongoing process to be certain the hardware in a machine 2266 is properly shutdown, so do not be surprised if this code does not 2267 initially work for you. It may help to enable device hotplugging 2268 support. As of this writing the exact hardware interface is 2269 strongly in flux, so no good recommendation can be made. 2270 2271config SECCOMP 2272 bool "Enable seccomp to safely compute untrusted bytecode" 2273 depends on PROC_FS 2274 default y 2275 help 2276 This kernel feature is useful for number crunching applications 2277 that may need to compute untrusted bytecode during their 2278 execution. By using pipes or other transports made available to 2279 the process as file descriptors supporting the read/write 2280 syscalls, it's possible to isolate those applications in 2281 their own address space using seccomp. Once seccomp is 2282 enabled via /proc/<pid>/seccomp, it cannot be disabled 2283 and the task is only allowed to execute a few safe syscalls 2284 defined by each seccomp mode. 2285 2286 If unsure, say Y. Only embedded should say N here. 2287 2288config USE_OF 2289 bool "Flattened Device Tree support" 2290 select OF 2291 select OF_EARLY_FLATTREE 2292 help 2293 Include support for flattened device tree machine descriptions. 2294 2295endmenu 2296 2297config LOCKDEP_SUPPORT 2298 bool 2299 default y 2300 2301config STACKTRACE_SUPPORT 2302 bool 2303 default y 2304 2305source "init/Kconfig" 2306 2307source "kernel/Kconfig.freezer" 2308 2309menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 2310 2311config HW_HAS_EISA 2312 bool 2313config HW_HAS_PCI 2314 bool 2315 2316config PCI 2317 bool "Support for PCI controller" 2318 depends on HW_HAS_PCI 2319 select PCI_DOMAINS 2320 select GENERIC_PCI_IOMAP 2321 help 2322 Find out whether you have a PCI motherboard. PCI is the name of a 2323 bus system, i.e. the way the CPU talks to the other stuff inside 2324 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, 2325 say Y, otherwise N. 2326 2327config PCI_DOMAINS 2328 bool 2329 2330source "drivers/pci/Kconfig" 2331 2332# 2333# ISA support is now enabled via select. Too many systems still have the one 2334# or other ISA chip on the board that users don't know about so don't expect 2335# users to choose the right thing ... 2336# 2337config ISA 2338 bool 2339 2340config EISA 2341 bool "EISA support" 2342 depends on HW_HAS_EISA 2343 select ISA 2344 select GENERIC_ISA_DMA 2345 ---help--- 2346 The Extended Industry Standard Architecture (EISA) bus was 2347 developed as an open alternative to the IBM MicroChannel bus. 2348 2349 The EISA bus provided some of the features of the IBM MicroChannel 2350 bus while maintaining backward compatibility with cards made for 2351 the older ISA bus. The EISA bus saw limited use between 1988 and 2352 1995 when it was made obsolete by the PCI bus. 2353 2354 Say Y here if you are building a kernel for an EISA-based machine. 2355 2356 Otherwise, say N. 2357 2358source "drivers/eisa/Kconfig" 2359 2360config TC 2361 bool "TURBOchannel support" 2362 depends on MACH_DECSTATION 2363 help 2364 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 2365 processors. TURBOchannel programming specifications are available 2366 at: 2367 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 2368 and: 2369 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 2370 Linux driver support status is documented at: 2371 <http://www.linux-mips.org/wiki/DECstation> 2372 2373config MMU 2374 bool 2375 default y 2376 2377config I8253 2378 bool 2379 select CLKSRC_I8253 2380 select CLKEVT_I8253 2381 select MIPS_EXTERNAL_TIMER 2382 2383config ZONE_DMA32 2384 bool 2385 2386source "drivers/pcmcia/Kconfig" 2387 2388source "drivers/pci/hotplug/Kconfig" 2389 2390config RAPIDIO 2391 bool "RapidIO support" 2392 depends on PCI 2393 default n 2394 help 2395 If you say Y here, the kernel will include drivers and 2396 infrastructure code to support RapidIO interconnect devices. 2397 2398source "drivers/rapidio/Kconfig" 2399 2400endmenu 2401 2402menu "Executable file formats" 2403 2404source "fs/Kconfig.binfmt" 2405 2406config TRAD_SIGNALS 2407 bool 2408 2409config MIPS32_COMPAT 2410 bool "Kernel support for Linux/MIPS 32-bit binary compatibility" 2411 depends on 64BIT 2412 help 2413 Select this option if you want Linux/MIPS 32-bit binary 2414 compatibility. Since all software available for Linux/MIPS is 2415 currently 32-bit you should say Y here. 2416 2417config COMPAT 2418 bool 2419 depends on MIPS32_COMPAT 2420 default y 2421 2422config SYSVIPC_COMPAT 2423 bool 2424 depends on COMPAT && SYSVIPC 2425 default y 2426 2427config MIPS32_O32 2428 bool "Kernel support for o32 binaries" 2429 depends on MIPS32_COMPAT 2430 help 2431 Select this option if you want to run o32 binaries. These are pure 2432 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 2433 existing binaries are in this format. 2434 2435 If unsure, say Y. 2436 2437config MIPS32_N32 2438 bool "Kernel support for n32 binaries" 2439 depends on MIPS32_COMPAT 2440 help 2441 Select this option if you want to run n32 binaries. These are 2442 64-bit binaries using 32-bit quantities for addressing and certain 2443 data that would normally be 64-bit. They are used in special 2444 cases. 2445 2446 If unsure, say N. 2447 2448config BINFMT_ELF32 2449 bool 2450 default y if MIPS32_O32 || MIPS32_N32 2451 2452endmenu 2453 2454menu "Power management options" 2455 2456config ARCH_HIBERNATION_POSSIBLE 2457 def_bool y 2458 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 2459 2460config ARCH_SUSPEND_POSSIBLE 2461 def_bool y 2462 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 2463 2464source "kernel/power/Kconfig" 2465 2466endmenu 2467 2468source "arch/mips/kernel/cpufreq/Kconfig" 2469 2470source "net/Kconfig" 2471 2472source "drivers/Kconfig" 2473 2474source "fs/Kconfig" 2475 2476source "arch/mips/Kconfig.debug" 2477 2478source "security/Kconfig" 2479 2480source "crypto/Kconfig" 2481 2482source "lib/Kconfig" 2483