1config MIPS 2 bool 3 default y 4 select HAVE_GENERIC_DMA_COHERENT 5 select HAVE_IDE 6 select HAVE_OPROFILE 7 select HAVE_ARCH_KGDB 8 select HAVE_FUNCTION_TRACER 9 select HAVE_FUNCTION_TRACE_MCOUNT_TEST 10 select HAVE_DYNAMIC_FTRACE 11 select HAVE_FTRACE_MCOUNT_RECORD 12 select HAVE_FUNCTION_GRAPH_TRACER 13 select HAVE_KPROBES 14 select HAVE_KRETPROBES 15 select RTC_LIB if !MACH_LOONGSON 16 select GENERIC_ATOMIC64 if !64BIT 17 18mainmenu "Linux/MIPS Kernel Configuration" 19 20menu "Machine selection" 21 22config ZONE_DMA 23 bool 24 25choice 26 prompt "System type" 27 default SGI_IP22 28 29config MIPS_ALCHEMY 30 bool "Alchemy processor based machines" 31 select 64BIT_PHYS_ADDR 32 select CEVT_R4K_LIB 33 select CSRC_R4K_LIB 34 select IRQ_CPU 35 select SYS_HAS_CPU_MIPS32_R1 36 select SYS_SUPPORTS_32BIT_KERNEL 37 select SYS_SUPPORTS_APM_EMULATION 38 select GENERIC_GPIO 39 select ARCH_WANT_OPTIONAL_GPIOLIB 40 select SYS_SUPPORTS_ZBOOT 41 42config AR7 43 bool "Texas Instruments AR7" 44 select BOOT_ELF32 45 select DMA_NONCOHERENT 46 select CEVT_R4K 47 select CSRC_R4K 48 select IRQ_CPU 49 select NO_EXCEPT_FILL 50 select SWAP_IO_SPACE 51 select SYS_HAS_CPU_MIPS32_R1 52 select SYS_HAS_EARLY_PRINTK 53 select SYS_SUPPORTS_32BIT_KERNEL 54 select SYS_SUPPORTS_LITTLE_ENDIAN 55 select SYS_SUPPORTS_ZBOOT_UART16550 56 select ARCH_REQUIRE_GPIOLIB 57 select GCD 58 select VLYNQ 59 help 60 Support for the Texas Instruments AR7 System-on-a-Chip 61 family: TNETD7100, 7200 and 7300. 62 63config BCM47XX 64 bool "Broadcom BCM47XX based boards" 65 select CEVT_R4K 66 select CSRC_R4K 67 select DMA_NONCOHERENT 68 select HW_HAS_PCI 69 select IRQ_CPU 70 select SYS_HAS_CPU_MIPS32_R1 71 select SYS_SUPPORTS_32BIT_KERNEL 72 select SYS_SUPPORTS_LITTLE_ENDIAN 73 select SSB 74 select SSB_DRIVER_MIPS 75 select SSB_DRIVER_EXTIF 76 select SSB_EMBEDDED 77 select SSB_B43_PCI_BRIDGE if PCI 78 select SSB_PCICORE_HOSTMODE if PCI 79 select GENERIC_GPIO 80 select SYS_HAS_EARLY_PRINTK 81 select CFE 82 help 83 Support for BCM47XX based boards 84 85config BCM63XX 86 bool "Broadcom BCM63XX based boards" 87 select CEVT_R4K 88 select CSRC_R4K 89 select DMA_NONCOHERENT 90 select IRQ_CPU 91 select SYS_HAS_CPU_MIPS32_R1 92 select SYS_SUPPORTS_32BIT_KERNEL 93 select SYS_SUPPORTS_BIG_ENDIAN 94 select SYS_HAS_EARLY_PRINTK 95 select SWAP_IO_SPACE 96 select ARCH_REQUIRE_GPIOLIB 97 help 98 Support for BCM63XX based boards 99 100config MIPS_COBALT 101 bool "Cobalt Server" 102 select CEVT_R4K 103 select CSRC_R4K 104 select CEVT_GT641XX 105 select DMA_NONCOHERENT 106 select HW_HAS_PCI 107 select I8253 108 select I8259 109 select IRQ_CPU 110 select IRQ_GT641XX 111 select PCI_GT64XXX_PCI0 112 select PCI 113 select SYS_HAS_CPU_NEVADA 114 select SYS_HAS_EARLY_PRINTK 115 select SYS_SUPPORTS_32BIT_KERNEL 116 select SYS_SUPPORTS_64BIT_KERNEL 117 select SYS_SUPPORTS_LITTLE_ENDIAN 118 119config MACH_DECSTATION 120 bool "DECstations" 121 select BOOT_ELF32 122 select CEVT_DS1287 123 select CEVT_R4K 124 select CSRC_IOASIC 125 select CSRC_R4K 126 select CPU_DADDI_WORKAROUNDS if 64BIT 127 select CPU_R4000_WORKAROUNDS if 64BIT 128 select CPU_R4400_WORKAROUNDS if 64BIT 129 select DMA_NONCOHERENT 130 select NO_IOPORT 131 select IRQ_CPU 132 select SYS_HAS_CPU_R3000 133 select SYS_HAS_CPU_R4X00 134 select SYS_SUPPORTS_32BIT_KERNEL 135 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL 136 select SYS_SUPPORTS_LITTLE_ENDIAN 137 select SYS_SUPPORTS_128HZ 138 select SYS_SUPPORTS_256HZ 139 select SYS_SUPPORTS_1024HZ 140 help 141 This enables support for DEC's MIPS based workstations. For details 142 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 143 DECstation porting pages on <http://decstation.unix-ag.org/>. 144 145 If you have one of the following DECstation Models you definitely 146 want to choose R4xx0 for the CPU Type: 147 148 DECstation 5000/50 149 DECstation 5000/150 150 DECstation 5000/260 151 DECsystem 5900/260 152 153 otherwise choose R3000. 154 155config MACH_JAZZ 156 bool "Jazz family of machines" 157 select ARC 158 select ARC32 159 select ARCH_MAY_HAVE_PC_FDC 160 select CEVT_R4K 161 select CSRC_R4K 162 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 163 select GENERIC_ISA_DMA 164 select IRQ_CPU 165 select I8253 166 select I8259 167 select ISA 168 select SYS_HAS_CPU_R4X00 169 select SYS_SUPPORTS_32BIT_KERNEL 170 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL 171 select SYS_SUPPORTS_100HZ 172 help 173 This a family of machines based on the MIPS R4030 chipset which was 174 used by several vendors to build RISC/os and Windows NT workstations. 175 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 176 Olivetti M700-10 workstations. 177 178config MACH_JZ4740 179 bool "Ingenic JZ4740 based machines" 180 select SYS_HAS_CPU_MIPS32_R1 181 select SYS_SUPPORTS_32BIT_KERNEL 182 select SYS_SUPPORTS_LITTLE_ENDIAN 183 select DMA_NONCOHERENT 184 select IRQ_CPU 185 select GENERIC_GPIO 186 select ARCH_REQUIRE_GPIOLIB 187 select SYS_HAS_EARLY_PRINTK 188 select HAVE_PWM 189 190config LASAT 191 bool "LASAT Networks platforms" 192 select CEVT_R4K 193 select CSRC_R4K 194 select DMA_NONCOHERENT 195 select SYS_HAS_EARLY_PRINTK 196 select HW_HAS_PCI 197 select IRQ_CPU 198 select PCI_GT64XXX_PCI0 199 select MIPS_NILE4 200 select R5000_CPU_SCACHE 201 select SYS_HAS_CPU_R5000 202 select SYS_SUPPORTS_32BIT_KERNEL 203 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 204 select SYS_SUPPORTS_LITTLE_ENDIAN 205 206config MACH_LOONGSON 207 bool "Loongson family of machines" 208 select SYS_SUPPORTS_ZBOOT 209 help 210 This enables the support of Loongson family of machines. 211 212 Loongson is a family of general-purpose MIPS-compatible CPUs. 213 developed at Institute of Computing Technology (ICT), 214 Chinese Academy of Sciences (CAS) in the People's Republic 215 of China. The chief architect is Professor Weiwu Hu. 216 217config MIPS_MALTA 218 bool "MIPS Malta board" 219 select ARCH_MAY_HAVE_PC_FDC 220 select BOOT_ELF32 221 select BOOT_RAW 222 select CEVT_R4K 223 select CSRC_R4K 224 select DMA_NONCOHERENT 225 select GENERIC_ISA_DMA 226 select IRQ_CPU 227 select IRQ_GIC 228 select HW_HAS_PCI 229 select I8253 230 select I8259 231 select MIPS_BOARDS_GEN 232 select MIPS_BONITO64 233 select MIPS_CPU_SCACHE 234 select PCI_GT64XXX_PCI0 235 select MIPS_MSC 236 select SWAP_IO_SPACE 237 select SYS_HAS_CPU_MIPS32_R1 238 select SYS_HAS_CPU_MIPS32_R2 239 select SYS_HAS_CPU_MIPS64_R1 240 select SYS_HAS_CPU_NEVADA 241 select SYS_HAS_CPU_RM7000 242 select SYS_HAS_EARLY_PRINTK 243 select SYS_SUPPORTS_32BIT_KERNEL 244 select SYS_SUPPORTS_64BIT_KERNEL 245 select SYS_SUPPORTS_BIG_ENDIAN 246 select SYS_SUPPORTS_LITTLE_ENDIAN 247 select SYS_SUPPORTS_MIPS_CMP 248 select SYS_SUPPORTS_MULTITHREADING 249 select SYS_SUPPORTS_SMARTMIPS 250 select SYS_SUPPORTS_ZBOOT 251 help 252 This enables support for the MIPS Technologies Malta evaluation 253 board. 254 255config MIPS_SIM 256 bool 'MIPS simulator (MIPSsim)' 257 select CEVT_R4K 258 select CSRC_R4K 259 select DMA_NONCOHERENT 260 select SYS_HAS_EARLY_PRINTK 261 select IRQ_CPU 262 select BOOT_RAW 263 select SYS_HAS_CPU_MIPS32_R1 264 select SYS_HAS_CPU_MIPS32_R2 265 select SYS_HAS_EARLY_PRINTK 266 select SYS_SUPPORTS_32BIT_KERNEL 267 select SYS_SUPPORTS_BIG_ENDIAN 268 select SYS_SUPPORTS_MULTITHREADING 269 select SYS_SUPPORTS_LITTLE_ENDIAN 270 help 271 This option enables support for MIPS Technologies MIPSsim software 272 emulator. 273 274config NEC_MARKEINS 275 bool "NEC EMMA2RH Mark-eins board" 276 select SOC_EMMA2RH 277 select HW_HAS_PCI 278 help 279 This enables support for the NEC Electronics Mark-eins boards. 280 281config MACH_VR41XX 282 bool "NEC VR4100 series based machines" 283 select CEVT_R4K 284 select CSRC_R4K 285 select SYS_HAS_CPU_VR41XX 286 select ARCH_REQUIRE_GPIOLIB 287 288config NXP_STB220 289 bool "NXP STB220 board" 290 select SOC_PNX833X 291 help 292 Support for NXP Semiconductors STB220 Development Board. 293 294config NXP_STB225 295 bool "NXP 225 board" 296 select SOC_PNX833X 297 select SOC_PNX8335 298 help 299 Support for NXP Semiconductors STB225 Development Board. 300 301config PNX8550_JBS 302 bool "NXP PNX8550 based JBS board" 303 select PNX8550 304 select SYS_SUPPORTS_LITTLE_ENDIAN 305 306config PNX8550_STB810 307 bool "NXP PNX8550 based STB810 board" 308 select PNX8550 309 select SYS_SUPPORTS_LITTLE_ENDIAN 310 311config PMC_MSP 312 bool "PMC-Sierra MSP chipsets" 313 depends on EXPERIMENTAL 314 select DMA_NONCOHERENT 315 select SWAP_IO_SPACE 316 select NO_EXCEPT_FILL 317 select BOOT_RAW 318 select SYS_HAS_CPU_MIPS32_R1 319 select SYS_HAS_CPU_MIPS32_R2 320 select SYS_SUPPORTS_32BIT_KERNEL 321 select SYS_SUPPORTS_BIG_ENDIAN 322 select IRQ_CPU 323 select SERIAL_8250 324 select SERIAL_8250_CONSOLE 325 help 326 This adds support for the PMC-Sierra family of Multi-Service 327 Processor System-On-A-Chips. These parts include a number 328 of integrated peripherals, interfaces and DSPs in addition to 329 a variety of MIPS cores. 330 331config PMC_YOSEMITE 332 bool "PMC-Sierra Yosemite eval board" 333 select CEVT_R4K 334 select CSRC_R4K 335 select DMA_COHERENT 336 select HW_HAS_PCI 337 select IRQ_CPU 338 select IRQ_CPU_RM7K 339 select IRQ_CPU_RM9K 340 select SWAP_IO_SPACE 341 select SYS_HAS_CPU_RM9000 342 select SYS_HAS_EARLY_PRINTK 343 select SYS_SUPPORTS_32BIT_KERNEL 344 select SYS_SUPPORTS_64BIT_KERNEL 345 select SYS_SUPPORTS_BIG_ENDIAN 346 select SYS_SUPPORTS_HIGHMEM 347 select SYS_SUPPORTS_SMP 348 help 349 Yosemite is an evaluation board for the RM9000x2 processor 350 manufactured by PMC-Sierra. 351 352config POWERTV 353 bool "Cisco PowerTV" 354 select BOOT_ELF32 355 select CEVT_R4K 356 select CPU_MIPSR2_IRQ_VI 357 select CPU_MIPSR2_IRQ_EI 358 select CSRC_POWERTV 359 select DMA_NONCOHERENT 360 select HW_HAS_PCI 361 select SYS_HAS_EARLY_PRINTK 362 select SYS_HAS_CPU_MIPS32_R2 363 select SYS_SUPPORTS_32BIT_KERNEL 364 select SYS_SUPPORTS_BIG_ENDIAN 365 select SYS_SUPPORTS_HIGHMEM 366 select USB_OHCI_LITTLE_ENDIAN 367 help 368 This enables support for the Cisco PowerTV Platform. 369 370config SGI_IP22 371 bool "SGI IP22 (Indy/Indigo2)" 372 select ARC 373 select ARC32 374 select BOOT_ELF32 375 select CEVT_R4K 376 select CSRC_R4K 377 select DEFAULT_SGI_PARTITION 378 select DMA_NONCOHERENT 379 select HW_HAS_EISA 380 select I8253 381 select I8259 382 select IP22_CPU_SCACHE 383 select IRQ_CPU 384 select GENERIC_ISA_DMA_SUPPORT_BROKEN 385 select SGI_HAS_I8042 386 select SGI_HAS_INDYDOG 387 select SGI_HAS_HAL2 388 select SGI_HAS_SEEQ 389 select SGI_HAS_WD93 390 select SGI_HAS_ZILOG 391 select SWAP_IO_SPACE 392 select SYS_HAS_CPU_R4X00 393 select SYS_HAS_CPU_R5000 394 # 395 # Disable EARLY_PRINTK for now since it leads to overwritten prom 396 # memory during early boot on some machines. 397 # 398 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 399 # for a more details discussion 400 # 401 # select SYS_HAS_EARLY_PRINTK 402 select SYS_SUPPORTS_32BIT_KERNEL 403 select SYS_SUPPORTS_64BIT_KERNEL 404 select SYS_SUPPORTS_BIG_ENDIAN 405 help 406 This are the SGI Indy, Challenge S and Indigo2, as well as certain 407 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 408 that runs on these, say Y here. 409 410config SGI_IP27 411 bool "SGI IP27 (Origin200/2000)" 412 select ARC 413 select ARC64 414 select BOOT_ELF64 415 select DEFAULT_SGI_PARTITION 416 select DMA_COHERENT 417 select SYS_HAS_EARLY_PRINTK 418 select HW_HAS_PCI 419 select NR_CPUS_DEFAULT_64 420 select SYS_HAS_CPU_R10000 421 select SYS_SUPPORTS_64BIT_KERNEL 422 select SYS_SUPPORTS_BIG_ENDIAN 423 select SYS_SUPPORTS_NUMA 424 select SYS_SUPPORTS_SMP 425 help 426 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 427 workstations. To compile a Linux kernel that runs on these, say Y 428 here. 429 430config SGI_IP28 431 bool "SGI IP28 (Indigo2 R10k) (EXPERIMENTAL)" 432 depends on EXPERIMENTAL 433 select ARC 434 select ARC64 435 select BOOT_ELF64 436 select CEVT_R4K 437 select CSRC_R4K 438 select DEFAULT_SGI_PARTITION 439 select DMA_NONCOHERENT 440 select GENERIC_ISA_DMA_SUPPORT_BROKEN 441 select IRQ_CPU 442 select HW_HAS_EISA 443 select I8253 444 select I8259 445 select SGI_HAS_I8042 446 select SGI_HAS_INDYDOG 447 select SGI_HAS_HAL2 448 select SGI_HAS_SEEQ 449 select SGI_HAS_WD93 450 select SGI_HAS_ZILOG 451 select SWAP_IO_SPACE 452 select SYS_HAS_CPU_R10000 453 # 454 # Disable EARLY_PRINTK for now since it leads to overwritten prom 455 # memory during early boot on some machines. 456 # 457 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 458 # for a more details discussion 459 # 460 # select SYS_HAS_EARLY_PRINTK 461 select SYS_SUPPORTS_64BIT_KERNEL 462 select SYS_SUPPORTS_BIG_ENDIAN 463 help 464 This is the SGI Indigo2 with R10000 processor. To compile a Linux 465 kernel that runs on these, say Y here. 466 467config SGI_IP32 468 bool "SGI IP32 (O2)" 469 select ARC 470 select ARC32 471 select BOOT_ELF32 472 select CEVT_R4K 473 select CSRC_R4K 474 select DMA_NONCOHERENT 475 select HW_HAS_PCI 476 select IRQ_CPU 477 select R5000_CPU_SCACHE 478 select RM7000_CPU_SCACHE 479 select SYS_HAS_CPU_R5000 480 select SYS_HAS_CPU_R10000 if BROKEN 481 select SYS_HAS_CPU_RM7000 482 select SYS_HAS_CPU_NEVADA 483 select SYS_SUPPORTS_64BIT_KERNEL 484 select SYS_SUPPORTS_BIG_ENDIAN 485 help 486 If you want this kernel to run on SGI O2 workstation, say Y here. 487 488config SIBYTE_CRHINE 489 bool "Sibyte BCM91120C-CRhine" 490 depends on EXPERIMENTAL 491 select BOOT_ELF32 492 select DMA_COHERENT 493 select SIBYTE_BCM1120 494 select SWAP_IO_SPACE 495 select SYS_HAS_CPU_SB1 496 select SYS_SUPPORTS_BIG_ENDIAN 497 select SYS_SUPPORTS_LITTLE_ENDIAN 498 499config SIBYTE_CARMEL 500 bool "Sibyte BCM91120x-Carmel" 501 depends on EXPERIMENTAL 502 select BOOT_ELF32 503 select DMA_COHERENT 504 select SIBYTE_BCM1120 505 select SWAP_IO_SPACE 506 select SYS_HAS_CPU_SB1 507 select SYS_SUPPORTS_BIG_ENDIAN 508 select SYS_SUPPORTS_LITTLE_ENDIAN 509 510config SIBYTE_CRHONE 511 bool "Sibyte BCM91125C-CRhone" 512 depends on EXPERIMENTAL 513 select BOOT_ELF32 514 select DMA_COHERENT 515 select SIBYTE_BCM1125 516 select SWAP_IO_SPACE 517 select SYS_HAS_CPU_SB1 518 select SYS_SUPPORTS_BIG_ENDIAN 519 select SYS_SUPPORTS_HIGHMEM 520 select SYS_SUPPORTS_LITTLE_ENDIAN 521 522config SIBYTE_RHONE 523 bool "Sibyte BCM91125E-Rhone" 524 depends on EXPERIMENTAL 525 select BOOT_ELF32 526 select DMA_COHERENT 527 select SIBYTE_BCM1125H 528 select SWAP_IO_SPACE 529 select SYS_HAS_CPU_SB1 530 select SYS_SUPPORTS_BIG_ENDIAN 531 select SYS_SUPPORTS_LITTLE_ENDIAN 532 533config SIBYTE_SWARM 534 bool "Sibyte BCM91250A-SWARM" 535 select BOOT_ELF32 536 select DMA_COHERENT 537 select HAVE_PATA_PLATFORM 538 select NR_CPUS_DEFAULT_2 539 select SIBYTE_SB1250 540 select SWAP_IO_SPACE 541 select SYS_HAS_CPU_SB1 542 select SYS_SUPPORTS_BIG_ENDIAN 543 select SYS_SUPPORTS_HIGHMEM 544 select SYS_SUPPORTS_LITTLE_ENDIAN 545 select ZONE_DMA32 if 64BIT 546 547config SIBYTE_LITTLESUR 548 bool "Sibyte BCM91250C2-LittleSur" 549 depends on EXPERIMENTAL 550 select BOOT_ELF32 551 select DMA_COHERENT 552 select HAVE_PATA_PLATFORM 553 select NR_CPUS_DEFAULT_2 554 select SIBYTE_SB1250 555 select SWAP_IO_SPACE 556 select SYS_HAS_CPU_SB1 557 select SYS_SUPPORTS_BIG_ENDIAN 558 select SYS_SUPPORTS_HIGHMEM 559 select SYS_SUPPORTS_LITTLE_ENDIAN 560 561config SIBYTE_SENTOSA 562 bool "Sibyte BCM91250E-Sentosa" 563 depends on EXPERIMENTAL 564 select BOOT_ELF32 565 select DMA_COHERENT 566 select NR_CPUS_DEFAULT_2 567 select SIBYTE_SB1250 568 select SWAP_IO_SPACE 569 select SYS_HAS_CPU_SB1 570 select SYS_SUPPORTS_BIG_ENDIAN 571 select SYS_SUPPORTS_LITTLE_ENDIAN 572 573config SIBYTE_BIGSUR 574 bool "Sibyte BCM91480B-BigSur" 575 select BOOT_ELF32 576 select DMA_COHERENT 577 select NR_CPUS_DEFAULT_4 578 select SIBYTE_BCM1x80 579 select SWAP_IO_SPACE 580 select SYS_HAS_CPU_SB1 581 select SYS_SUPPORTS_BIG_ENDIAN 582 select SYS_SUPPORTS_HIGHMEM 583 select SYS_SUPPORTS_LITTLE_ENDIAN 584 select ZONE_DMA32 if 64BIT 585 586config SNI_RM 587 bool "SNI RM200/300/400" 588 select ARC if CPU_LITTLE_ENDIAN 589 select ARC32 if CPU_LITTLE_ENDIAN 590 select SNIPROM if CPU_BIG_ENDIAN 591 select ARCH_MAY_HAVE_PC_FDC 592 select BOOT_ELF32 593 select CEVT_R4K 594 select CSRC_R4K 595 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 596 select DMA_NONCOHERENT 597 select GENERIC_ISA_DMA 598 select HW_HAS_EISA 599 select HW_HAS_PCI 600 select IRQ_CPU 601 select I8253 602 select I8259 603 select ISA 604 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 605 select SYS_HAS_CPU_R4X00 606 select SYS_HAS_CPU_R5000 607 select SYS_HAS_CPU_R10000 608 select R5000_CPU_SCACHE 609 select SYS_HAS_EARLY_PRINTK 610 select SYS_SUPPORTS_32BIT_KERNEL 611 select SYS_SUPPORTS_64BIT_KERNEL if EXPERIMENTAL 612 select SYS_SUPPORTS_BIG_ENDIAN 613 select SYS_SUPPORTS_HIGHMEM 614 select SYS_SUPPORTS_LITTLE_ENDIAN 615 help 616 The SNI RM200/300/400 are MIPS-based machines manufactured by 617 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 618 Technology and now in turn merged with Fujitsu. Say Y here to 619 support this machine type. 620 621config MACH_TX39XX 622 bool "Toshiba TX39 series based machines" 623 624config MACH_TX49XX 625 bool "Toshiba TX49 series based machines" 626 627config MIKROTIK_RB532 628 bool "Mikrotik RB532 boards" 629 select CEVT_R4K 630 select CSRC_R4K 631 select DMA_NONCOHERENT 632 select HW_HAS_PCI 633 select IRQ_CPU 634 select SYS_HAS_CPU_MIPS32_R1 635 select SYS_SUPPORTS_32BIT_KERNEL 636 select SYS_SUPPORTS_LITTLE_ENDIAN 637 select SWAP_IO_SPACE 638 select BOOT_RAW 639 select ARCH_REQUIRE_GPIOLIB 640 help 641 Support the Mikrotik(tm) RouterBoard 532 series, 642 based on the IDT RC32434 SoC. 643 644config WR_PPMC 645 bool "Wind River PPMC board" 646 select CEVT_R4K 647 select CSRC_R4K 648 select IRQ_CPU 649 select BOOT_ELF32 650 select DMA_NONCOHERENT 651 select HW_HAS_PCI 652 select PCI_GT64XXX_PCI0 653 select SWAP_IO_SPACE 654 select SYS_HAS_CPU_MIPS32_R1 655 select SYS_HAS_CPU_MIPS32_R2 656 select SYS_HAS_CPU_MIPS64_R1 657 select SYS_HAS_CPU_NEVADA 658 select SYS_HAS_CPU_RM7000 659 select SYS_SUPPORTS_32BIT_KERNEL 660 select SYS_SUPPORTS_64BIT_KERNEL 661 select SYS_SUPPORTS_BIG_ENDIAN 662 select SYS_SUPPORTS_LITTLE_ENDIAN 663 help 664 This enables support for the Wind River MIPS32 4KC PPMC evaluation 665 board, which is based on GT64120 bridge chip. 666 667config CAVIUM_OCTEON_SIMULATOR 668 bool "Cavium Networks Octeon Simulator" 669 select CEVT_R4K 670 select 64BIT_PHYS_ADDR 671 select DMA_COHERENT 672 select SYS_SUPPORTS_64BIT_KERNEL 673 select SYS_SUPPORTS_BIG_ENDIAN 674 select SYS_SUPPORTS_HIGHMEM 675 select SYS_SUPPORTS_HOTPLUG_CPU 676 select SYS_HAS_CPU_CAVIUM_OCTEON 677 help 678 The Octeon simulator is software performance model of the Cavium 679 Octeon Processor. It supports simulating Octeon processors on x86 680 hardware. 681 682config CAVIUM_OCTEON_REFERENCE_BOARD 683 bool "Cavium Networks Octeon reference board" 684 select CEVT_R4K 685 select 64BIT_PHYS_ADDR 686 select DMA_COHERENT 687 select SYS_SUPPORTS_64BIT_KERNEL 688 select SYS_SUPPORTS_BIG_ENDIAN 689 select SYS_SUPPORTS_HIGHMEM 690 select SYS_SUPPORTS_HOTPLUG_CPU 691 select SYS_HAS_EARLY_PRINTK 692 select SYS_HAS_CPU_CAVIUM_OCTEON 693 select SWAP_IO_SPACE 694 select HW_HAS_PCI 695 select ARCH_SUPPORTS_MSI 696 help 697 This option supports all of the Octeon reference boards from Cavium 698 Networks. It builds a kernel that dynamically determines the Octeon 699 CPU type and supports all known board reference implementations. 700 Some of the supported boards are: 701 EBT3000 702 EBH3000 703 EBH3100 704 Thunder 705 Kodama 706 Hikari 707 Say Y here for most Octeon reference boards. 708 709endchoice 710 711source "arch/mips/alchemy/Kconfig" 712source "arch/mips/bcm63xx/Kconfig" 713source "arch/mips/jazz/Kconfig" 714source "arch/mips/jz4740/Kconfig" 715source "arch/mips/lasat/Kconfig" 716source "arch/mips/pmc-sierra/Kconfig" 717source "arch/mips/powertv/Kconfig" 718source "arch/mips/sgi-ip27/Kconfig" 719source "arch/mips/sibyte/Kconfig" 720source "arch/mips/txx9/Kconfig" 721source "arch/mips/vr41xx/Kconfig" 722source "arch/mips/cavium-octeon/Kconfig" 723source "arch/mips/loongson/Kconfig" 724 725endmenu 726 727config RWSEM_GENERIC_SPINLOCK 728 bool 729 default y 730 731config RWSEM_XCHGADD_ALGORITHM 732 bool 733 734config ARCH_HAS_ILOG2_U32 735 bool 736 default n 737 738config ARCH_HAS_ILOG2_U64 739 bool 740 default n 741 742config ARCH_SUPPORTS_OPROFILE 743 bool 744 default y if !MIPS_MT_SMTC 745 746config GENERIC_FIND_NEXT_BIT 747 bool 748 default y 749 750config GENERIC_HWEIGHT 751 bool 752 default y 753 754config GENERIC_CALIBRATE_DELAY 755 bool 756 default y 757 758config GENERIC_CLOCKEVENTS 759 bool 760 default y 761 762config GENERIC_CMOS_UPDATE 763 bool 764 default y 765 766config SCHED_OMIT_FRAME_POINTER 767 bool 768 default y 769 770config GENERIC_HARDIRQS_NO__DO_IRQ 771 def_bool y 772 773# 774# Select some configuration options automatically based on user selections. 775# 776config ARC 777 bool 778 779config ARCH_MAY_HAVE_PC_FDC 780 bool 781 782config BOOT_RAW 783 bool 784 785config CEVT_BCM1480 786 bool 787 788config CEVT_DS1287 789 bool 790 791config CEVT_GT641XX 792 bool 793 794config CEVT_R4K_LIB 795 bool 796 797config CEVT_R4K 798 select CEVT_R4K_LIB 799 bool 800 801config CEVT_SB1250 802 bool 803 804config CEVT_TXX9 805 bool 806 807config CSRC_BCM1480 808 bool 809 810config CSRC_IOASIC 811 bool 812 813config CSRC_POWERTV 814 bool 815 816config CSRC_R4K_LIB 817 bool 818 819config CSRC_R4K 820 select CSRC_R4K_LIB 821 bool 822 823config CSRC_SB1250 824 bool 825 826config GPIO_TXX9 827 select GENERIC_GPIO 828 select ARCH_REQUIRE_GPIOLIB 829 bool 830 831config CFE 832 bool 833 834config DMA_COHERENT 835 bool 836 837config DMA_NONCOHERENT 838 bool 839 select NEED_DMA_MAP_STATE 840 841config NEED_DMA_MAP_STATE 842 bool 843 844config SYS_HAS_EARLY_PRINTK 845 bool 846 847config HOTPLUG_CPU 848 bool "Support for hot-pluggable CPUs" 849 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU 850 help 851 Say Y here to allow turning CPUs off and on. CPUs can be 852 controlled through /sys/devices/system/cpu. 853 (Note: power management support will enable this option 854 automatically on SMP systems. ) 855 Say N if you want to disable CPU hotplug. 856 857config SYS_SUPPORTS_HOTPLUG_CPU 858 bool 859 860config I8259 861 bool 862 863config MIPS_BONITO64 864 bool 865 866config MIPS_MSC 867 bool 868 869config MIPS_NILE4 870 bool 871 872config MIPS_DISABLE_OBSOLETE_IDE 873 bool 874 875config SYNC_R4K 876 bool 877 878config NO_IOPORT 879 def_bool n 880 881config GENERIC_ISA_DMA 882 bool 883 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 884 select ISA_DMA_API 885 886config GENERIC_ISA_DMA_SUPPORT_BROKEN 887 bool 888 select GENERIC_ISA_DMA 889 890config ISA_DMA_API 891 bool 892 893config GENERIC_GPIO 894 bool 895 896# 897# Endianess selection. Sufficiently obscure so many users don't know what to 898# answer,so we try hard to limit the available choices. Also the use of a 899# choice statement should be more obvious to the user. 900# 901choice 902 prompt "Endianess selection" 903 help 904 Some MIPS machines can be configured for either little or big endian 905 byte order. These modes require different kernels and a different 906 Linux distribution. In general there is one preferred byteorder for a 907 particular system but some systems are just as commonly used in the 908 one or the other endianness. 909 910config CPU_BIG_ENDIAN 911 bool "Big endian" 912 depends on SYS_SUPPORTS_BIG_ENDIAN 913 914config CPU_LITTLE_ENDIAN 915 bool "Little endian" 916 depends on SYS_SUPPORTS_LITTLE_ENDIAN 917 help 918 919endchoice 920 921config EXPORT_UASM 922 bool 923 924config SYS_SUPPORTS_APM_EMULATION 925 bool 926 927config SYS_SUPPORTS_BIG_ENDIAN 928 bool 929 930config SYS_SUPPORTS_LITTLE_ENDIAN 931 bool 932 933config SYS_SUPPORTS_HUGETLBFS 934 bool 935 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT 936 default y 937 938config IRQ_CPU 939 bool 940 941config IRQ_CPU_RM7K 942 bool 943 944config IRQ_CPU_RM9K 945 bool 946 947config IRQ_MSP_SLP 948 bool 949 950config IRQ_MSP_CIC 951 bool 952 953config IRQ_TXX9 954 bool 955 956config IRQ_GT641XX 957 bool 958 959config IRQ_GIC 960 bool 961 962config IRQ_CPU_OCTEON 963 bool 964 965config MIPS_BOARDS_GEN 966 bool 967 968config PCI_GT64XXX_PCI0 969 bool 970 971config NO_EXCEPT_FILL 972 bool 973 974config MIPS_RM9122 975 bool 976 select SERIAL_RM9000 977 978config SOC_EMMA2RH 979 bool 980 select CEVT_R4K 981 select CSRC_R4K 982 select DMA_NONCOHERENT 983 select IRQ_CPU 984 select SWAP_IO_SPACE 985 select SYS_HAS_CPU_R5500 986 select SYS_SUPPORTS_32BIT_KERNEL 987 select SYS_SUPPORTS_64BIT_KERNEL 988 select SYS_SUPPORTS_BIG_ENDIAN 989 990config SOC_PNX833X 991 bool 992 select CEVT_R4K 993 select CSRC_R4K 994 select IRQ_CPU 995 select DMA_NONCOHERENT 996 select SYS_HAS_CPU_MIPS32_R2 997 select SYS_SUPPORTS_32BIT_KERNEL 998 select SYS_SUPPORTS_LITTLE_ENDIAN 999 select SYS_SUPPORTS_BIG_ENDIAN 1000 select GENERIC_GPIO 1001 select CPU_MIPSR2_IRQ_VI 1002 1003config SOC_PNX8335 1004 bool 1005 select SOC_PNX833X 1006 1007config PNX8550 1008 bool 1009 select SOC_PNX8550 1010 1011config SOC_PNX8550 1012 bool 1013 select DMA_NONCOHERENT 1014 select HW_HAS_PCI 1015 select SYS_HAS_CPU_MIPS32_R1 1016 select SYS_HAS_EARLY_PRINTK 1017 select SYS_SUPPORTS_32BIT_KERNEL 1018 select GENERIC_GPIO 1019 1020config SWAP_IO_SPACE 1021 bool 1022 1023config SERIAL_RM9000 1024 bool 1025 1026config SGI_HAS_INDYDOG 1027 bool 1028 1029config SGI_HAS_HAL2 1030 bool 1031 1032config SGI_HAS_SEEQ 1033 bool 1034 1035config SGI_HAS_WD93 1036 bool 1037 1038config SGI_HAS_ZILOG 1039 bool 1040 1041config SGI_HAS_I8042 1042 bool 1043 1044config DEFAULT_SGI_PARTITION 1045 bool 1046 1047config ARC32 1048 bool 1049 1050config SNIPROM 1051 bool 1052 1053config BOOT_ELF32 1054 bool 1055 1056config MIPS_L1_CACHE_SHIFT 1057 int 1058 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL 1059 default "6" if MIPS_CPU_SCACHE 1060 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON 1061 default "5" 1062 1063config HAVE_STD_PC_SERIAL_PORT 1064 bool 1065 1066config ARC_CONSOLE 1067 bool "ARC console support" 1068 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1069 1070config ARC_MEMORY 1071 bool 1072 depends on MACH_JAZZ || SNI_RM || SGI_IP32 1073 default y 1074 1075config ARC_PROMLIB 1076 bool 1077 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 1078 default y 1079 1080config ARC64 1081 bool 1082 1083config BOOT_ELF64 1084 bool 1085 1086menu "CPU selection" 1087 1088choice 1089 prompt "CPU type" 1090 default CPU_R4X00 1091 1092config CPU_LOONGSON2E 1093 bool "Loongson 2E" 1094 depends on SYS_HAS_CPU_LOONGSON2E 1095 select CPU_LOONGSON2 1096 help 1097 The Loongson 2E processor implements the MIPS III instruction set 1098 with many extensions. 1099 1100 It has an internal FPGA northbridge, which is compatiable to 1101 bonito64. 1102 1103config CPU_LOONGSON2F 1104 bool "Loongson 2F" 1105 depends on SYS_HAS_CPU_LOONGSON2F 1106 select CPU_LOONGSON2 1107 select GENERIC_GPIO 1108 select ARCH_REQUIRE_GPIOLIB 1109 help 1110 The Loongson 2F processor implements the MIPS III instruction set 1111 with many extensions. 1112 1113 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1114 have a similar programming interface with FPGA northbridge used in 1115 Loongson2E. 1116 1117config CPU_MIPS32_R1 1118 bool "MIPS32 Release 1" 1119 depends on SYS_HAS_CPU_MIPS32_R1 1120 select CPU_HAS_PREFETCH 1121 select CPU_SUPPORTS_32BIT_KERNEL 1122 select CPU_SUPPORTS_HIGHMEM 1123 help 1124 Choose this option to build a kernel for release 1 or later of the 1125 MIPS32 architecture. Most modern embedded systems with a 32-bit 1126 MIPS processor are based on a MIPS32 processor. If you know the 1127 specific type of processor in your system, choose those that one 1128 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1129 Release 2 of the MIPS32 architecture is available since several 1130 years so chances are you even have a MIPS32 Release 2 processor 1131 in which case you should choose CPU_MIPS32_R2 instead for better 1132 performance. 1133 1134config CPU_MIPS32_R2 1135 bool "MIPS32 Release 2" 1136 depends on SYS_HAS_CPU_MIPS32_R2 1137 select CPU_HAS_PREFETCH 1138 select CPU_SUPPORTS_32BIT_KERNEL 1139 select CPU_SUPPORTS_HIGHMEM 1140 help 1141 Choose this option to build a kernel for release 2 or later of the 1142 MIPS32 architecture. Most modern embedded systems with a 32-bit 1143 MIPS processor are based on a MIPS32 processor. If you know the 1144 specific type of processor in your system, choose those that one 1145 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1146 1147config CPU_MIPS64_R1 1148 bool "MIPS64 Release 1" 1149 depends on SYS_HAS_CPU_MIPS64_R1 1150 select CPU_HAS_PREFETCH 1151 select CPU_SUPPORTS_32BIT_KERNEL 1152 select CPU_SUPPORTS_64BIT_KERNEL 1153 select CPU_SUPPORTS_HIGHMEM 1154 select CPU_SUPPORTS_HUGEPAGES 1155 help 1156 Choose this option to build a kernel for release 1 or later of the 1157 MIPS64 architecture. Many modern embedded systems with a 64-bit 1158 MIPS processor are based on a MIPS64 processor. If you know the 1159 specific type of processor in your system, choose those that one 1160 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1161 Release 2 of the MIPS64 architecture is available since several 1162 years so chances are you even have a MIPS64 Release 2 processor 1163 in which case you should choose CPU_MIPS64_R2 instead for better 1164 performance. 1165 1166config CPU_MIPS64_R2 1167 bool "MIPS64 Release 2" 1168 depends on SYS_HAS_CPU_MIPS64_R2 1169 select CPU_HAS_PREFETCH 1170 select CPU_SUPPORTS_32BIT_KERNEL 1171 select CPU_SUPPORTS_64BIT_KERNEL 1172 select CPU_SUPPORTS_HIGHMEM 1173 select CPU_SUPPORTS_HUGEPAGES 1174 help 1175 Choose this option to build a kernel for release 2 or later of the 1176 MIPS64 architecture. Many modern embedded systems with a 64-bit 1177 MIPS processor are based on a MIPS64 processor. If you know the 1178 specific type of processor in your system, choose those that one 1179 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1180 1181config CPU_R3000 1182 bool "R3000" 1183 depends on SYS_HAS_CPU_R3000 1184 select CPU_HAS_WB 1185 select CPU_SUPPORTS_32BIT_KERNEL 1186 select CPU_SUPPORTS_HIGHMEM 1187 help 1188 Please make sure to pick the right CPU type. Linux/MIPS is not 1189 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1190 *not* work on R4000 machines and vice versa. However, since most 1191 of the supported machines have an R4000 (or similar) CPU, R4x00 1192 might be a safe bet. If the resulting kernel does not work, 1193 try to recompile with R3000. 1194 1195config CPU_TX39XX 1196 bool "R39XX" 1197 depends on SYS_HAS_CPU_TX39XX 1198 select CPU_SUPPORTS_32BIT_KERNEL 1199 1200config CPU_VR41XX 1201 bool "R41xx" 1202 depends on SYS_HAS_CPU_VR41XX 1203 select CPU_SUPPORTS_32BIT_KERNEL 1204 select CPU_SUPPORTS_64BIT_KERNEL 1205 help 1206 The options selects support for the NEC VR4100 series of processors. 1207 Only choose this option if you have one of these processors as a 1208 kernel built with this option will not run on any other type of 1209 processor or vice versa. 1210 1211config CPU_R4300 1212 bool "R4300" 1213 depends on SYS_HAS_CPU_R4300 1214 select CPU_SUPPORTS_32BIT_KERNEL 1215 select CPU_SUPPORTS_64BIT_KERNEL 1216 help 1217 MIPS Technologies R4300-series processors. 1218 1219config CPU_R4X00 1220 bool "R4x00" 1221 depends on SYS_HAS_CPU_R4X00 1222 select CPU_SUPPORTS_32BIT_KERNEL 1223 select CPU_SUPPORTS_64BIT_KERNEL 1224 help 1225 MIPS Technologies R4000-series processors other than 4300, including 1226 the R4000, R4400, R4600, and 4700. 1227 1228config CPU_TX49XX 1229 bool "R49XX" 1230 depends on SYS_HAS_CPU_TX49XX 1231 select CPU_HAS_PREFETCH 1232 select CPU_SUPPORTS_32BIT_KERNEL 1233 select CPU_SUPPORTS_64BIT_KERNEL 1234 1235config CPU_R5000 1236 bool "R5000" 1237 depends on SYS_HAS_CPU_R5000 1238 select CPU_SUPPORTS_32BIT_KERNEL 1239 select CPU_SUPPORTS_64BIT_KERNEL 1240 help 1241 MIPS Technologies R5000-series processors other than the Nevada. 1242 1243config CPU_R5432 1244 bool "R5432" 1245 depends on SYS_HAS_CPU_R5432 1246 select CPU_SUPPORTS_32BIT_KERNEL 1247 select CPU_SUPPORTS_64BIT_KERNEL 1248 1249config CPU_R5500 1250 bool "R5500" 1251 depends on SYS_HAS_CPU_R5500 1252 select CPU_SUPPORTS_32BIT_KERNEL 1253 select CPU_SUPPORTS_64BIT_KERNEL 1254 select CPU_SUPPORTS_HUGEPAGES 1255 help 1256 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1257 instruction set. 1258 1259config CPU_R6000 1260 bool "R6000" 1261 depends on EXPERIMENTAL 1262 depends on SYS_HAS_CPU_R6000 1263 select CPU_SUPPORTS_32BIT_KERNEL 1264 help 1265 MIPS Technologies R6000 and R6000A series processors. Note these 1266 processors are extremely rare and the support for them is incomplete. 1267 1268config CPU_NEVADA 1269 bool "RM52xx" 1270 depends on SYS_HAS_CPU_NEVADA 1271 select CPU_SUPPORTS_32BIT_KERNEL 1272 select CPU_SUPPORTS_64BIT_KERNEL 1273 help 1274 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1275 1276config CPU_R8000 1277 bool "R8000" 1278 depends on EXPERIMENTAL 1279 depends on SYS_HAS_CPU_R8000 1280 select CPU_HAS_PREFETCH 1281 select CPU_SUPPORTS_64BIT_KERNEL 1282 help 1283 MIPS Technologies R8000 processors. Note these processors are 1284 uncommon and the support for them is incomplete. 1285 1286config CPU_R10000 1287 bool "R10000" 1288 depends on SYS_HAS_CPU_R10000 1289 select CPU_HAS_PREFETCH 1290 select CPU_SUPPORTS_32BIT_KERNEL 1291 select CPU_SUPPORTS_64BIT_KERNEL 1292 select CPU_SUPPORTS_HIGHMEM 1293 help 1294 MIPS Technologies R10000-series processors. 1295 1296config CPU_RM7000 1297 bool "RM7000" 1298 depends on SYS_HAS_CPU_RM7000 1299 select CPU_HAS_PREFETCH 1300 select CPU_SUPPORTS_32BIT_KERNEL 1301 select CPU_SUPPORTS_64BIT_KERNEL 1302 select CPU_SUPPORTS_HIGHMEM 1303 1304config CPU_RM9000 1305 bool "RM9000" 1306 depends on SYS_HAS_CPU_RM9000 1307 select CPU_HAS_PREFETCH 1308 select CPU_SUPPORTS_32BIT_KERNEL 1309 select CPU_SUPPORTS_64BIT_KERNEL 1310 select CPU_SUPPORTS_HIGHMEM 1311 select WEAK_ORDERING 1312 1313config CPU_SB1 1314 bool "SB1" 1315 depends on SYS_HAS_CPU_SB1 1316 select CPU_SUPPORTS_32BIT_KERNEL 1317 select CPU_SUPPORTS_64BIT_KERNEL 1318 select CPU_SUPPORTS_HIGHMEM 1319 select WEAK_ORDERING 1320 1321config CPU_CAVIUM_OCTEON 1322 bool "Cavium Octeon processor" 1323 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1324 select IRQ_CPU 1325 select IRQ_CPU_OCTEON 1326 select CPU_HAS_PREFETCH 1327 select CPU_SUPPORTS_64BIT_KERNEL 1328 select SYS_SUPPORTS_SMP 1329 select NR_CPUS_DEFAULT_16 1330 select WEAK_ORDERING 1331 select CPU_SUPPORTS_HIGHMEM 1332 select CPU_SUPPORTS_HUGEPAGES 1333 help 1334 The Cavium Octeon processor is a highly integrated chip containing 1335 many ethernet hardware widgets for networking tasks. The processor 1336 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1337 Full details can be found at http://www.caviumnetworks.com. 1338 1339endchoice 1340 1341if CPU_LOONGSON2F 1342config CPU_NOP_WORKAROUNDS 1343 bool 1344 1345config CPU_JUMP_WORKAROUNDS 1346 bool 1347 1348config CPU_LOONGSON2F_WORKAROUNDS 1349 bool "Loongson 2F Workarounds" 1350 default y 1351 select CPU_NOP_WORKAROUNDS 1352 select CPU_JUMP_WORKAROUNDS 1353 help 1354 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1355 require workarounds. Without workarounds the system may hang 1356 unexpectedly. For more information please refer to the gas 1357 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1358 1359 Loongson 2F03 and later have fixed these issues and no workarounds 1360 are needed. The workarounds have no significant side effect on them 1361 but may decrease the performance of the system so this option should 1362 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1363 systems. 1364 1365 If unsure, please say Y. 1366endif # CPU_LOONGSON2F 1367 1368config SYS_SUPPORTS_ZBOOT 1369 bool 1370 select HAVE_KERNEL_GZIP 1371 select HAVE_KERNEL_BZIP2 1372 select HAVE_KERNEL_LZMA 1373 select HAVE_KERNEL_LZO 1374 1375config SYS_SUPPORTS_ZBOOT_UART16550 1376 bool 1377 select SYS_SUPPORTS_ZBOOT 1378 1379config CPU_LOONGSON2 1380 bool 1381 select CPU_SUPPORTS_32BIT_KERNEL 1382 select CPU_SUPPORTS_64BIT_KERNEL 1383 select CPU_SUPPORTS_HIGHMEM 1384 1385config SYS_HAS_CPU_LOONGSON2E 1386 bool 1387 1388config SYS_HAS_CPU_LOONGSON2F 1389 bool 1390 select CPU_SUPPORTS_CPUFREQ 1391 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1392 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1393 1394config SYS_HAS_CPU_MIPS32_R1 1395 bool 1396 1397config SYS_HAS_CPU_MIPS32_R2 1398 bool 1399 1400config SYS_HAS_CPU_MIPS64_R1 1401 bool 1402 1403config SYS_HAS_CPU_MIPS64_R2 1404 bool 1405 1406config SYS_HAS_CPU_R3000 1407 bool 1408 1409config SYS_HAS_CPU_TX39XX 1410 bool 1411 1412config SYS_HAS_CPU_VR41XX 1413 bool 1414 1415config SYS_HAS_CPU_R4300 1416 bool 1417 1418config SYS_HAS_CPU_R4X00 1419 bool 1420 1421config SYS_HAS_CPU_TX49XX 1422 bool 1423 1424config SYS_HAS_CPU_R5000 1425 bool 1426 1427config SYS_HAS_CPU_R5432 1428 bool 1429 1430config SYS_HAS_CPU_R5500 1431 bool 1432 1433config SYS_HAS_CPU_R6000 1434 bool 1435 1436config SYS_HAS_CPU_NEVADA 1437 bool 1438 1439config SYS_HAS_CPU_R8000 1440 bool 1441 1442config SYS_HAS_CPU_R10000 1443 bool 1444 1445config SYS_HAS_CPU_RM7000 1446 bool 1447 1448config SYS_HAS_CPU_RM9000 1449 bool 1450 1451config SYS_HAS_CPU_SB1 1452 bool 1453 1454config SYS_HAS_CPU_CAVIUM_OCTEON 1455 bool 1456 1457# 1458# CPU may reorder R->R, R->W, W->R, W->W 1459# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 1460# 1461config WEAK_ORDERING 1462 bool 1463 1464# 1465# CPU may reorder reads and writes beyond LL/SC 1466# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 1467# 1468config WEAK_REORDERING_BEYOND_LLSC 1469 bool 1470endmenu 1471 1472# 1473# These two indicate any level of the MIPS32 and MIPS64 architecture 1474# 1475config CPU_MIPS32 1476 bool 1477 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 1478 1479config CPU_MIPS64 1480 bool 1481 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 1482 1483# 1484# These two indicate the revision of the architecture, either Release 1 or Release 2 1485# 1486config CPU_MIPSR1 1487 bool 1488 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 1489 1490config CPU_MIPSR2 1491 bool 1492 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 1493 1494config SYS_SUPPORTS_32BIT_KERNEL 1495 bool 1496config SYS_SUPPORTS_64BIT_KERNEL 1497 bool 1498config CPU_SUPPORTS_32BIT_KERNEL 1499 bool 1500config CPU_SUPPORTS_64BIT_KERNEL 1501 bool 1502config CPU_SUPPORTS_CPUFREQ 1503 bool 1504config CPU_SUPPORTS_ADDRWINCFG 1505 bool 1506config CPU_SUPPORTS_HUGEPAGES 1507 bool 1508config CPU_SUPPORTS_UNCACHED_ACCELERATED 1509 bool 1510config MIPS_PGD_C0_CONTEXT 1511 bool 1512 default y if 64BIT && CPU_MIPSR2 1513 1514# 1515# Set to y for ptrace access to watch registers. 1516# 1517config HARDWARE_WATCHPOINTS 1518 bool 1519 default y if CPU_MIPSR1 || CPU_MIPSR2 1520 1521menu "Kernel type" 1522 1523choice 1524 1525 prompt "Kernel code model" 1526 help 1527 You should only select this option if you have a workload that 1528 actually benefits from 64-bit processing or if your machine has 1529 large memory. You will only be presented a single option in this 1530 menu if your system does not support both 32-bit and 64-bit kernels. 1531 1532config 32BIT 1533 bool "32-bit kernel" 1534 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 1535 select TRAD_SIGNALS 1536 help 1537 Select this option if you want to build a 32-bit kernel. 1538config 64BIT 1539 bool "64-bit kernel" 1540 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 1541 select HAVE_SYSCALL_WRAPPERS 1542 help 1543 Select this option if you want to build a 64-bit kernel. 1544 1545endchoice 1546 1547choice 1548 prompt "Kernel page size" 1549 default PAGE_SIZE_4KB 1550 1551config PAGE_SIZE_4KB 1552 bool "4kB" 1553 depends on !CPU_LOONGSON2 1554 help 1555 This option select the standard 4kB Linux page size. On some 1556 R3000-family processors this is the only available page size. Using 1557 4kB page size will minimize memory consumption and is therefore 1558 recommended for low memory systems. 1559 1560config PAGE_SIZE_8KB 1561 bool "8kB" 1562 depends on (EXPERIMENTAL && CPU_R8000) || CPU_CAVIUM_OCTEON 1563 help 1564 Using 8kB page size will result in higher performance kernel at 1565 the price of higher memory consumption. This option is available 1566 only on R8000 and cnMIPS processors. Note that you will need a 1567 suitable Linux distribution to support this. 1568 1569config PAGE_SIZE_16KB 1570 bool "16kB" 1571 depends on !CPU_R3000 && !CPU_TX39XX 1572 help 1573 Using 16kB page size will result in higher performance kernel at 1574 the price of higher memory consumption. This option is available on 1575 all non-R3000 family processors. Note that you will need a suitable 1576 Linux distribution to support this. 1577 1578config PAGE_SIZE_32KB 1579 bool "32kB" 1580 depends on CPU_CAVIUM_OCTEON 1581 help 1582 Using 32kB page size will result in higher performance kernel at 1583 the price of higher memory consumption. This option is available 1584 only on cnMIPS cores. Note that you will need a suitable Linux 1585 distribution to support this. 1586 1587config PAGE_SIZE_64KB 1588 bool "64kB" 1589 depends on EXPERIMENTAL && !CPU_R3000 && !CPU_TX39XX 1590 help 1591 Using 64kB page size will result in higher performance kernel at 1592 the price of higher memory consumption. This option is available on 1593 all non-R3000 family processor. Not that at the time of this 1594 writing this option is still high experimental. 1595 1596endchoice 1597 1598config BOARD_SCACHE 1599 bool 1600 1601config IP22_CPU_SCACHE 1602 bool 1603 select BOARD_SCACHE 1604 1605# 1606# Support for a MIPS32 / MIPS64 style S-caches 1607# 1608config MIPS_CPU_SCACHE 1609 bool 1610 select BOARD_SCACHE 1611 1612config R5000_CPU_SCACHE 1613 bool 1614 select BOARD_SCACHE 1615 1616config RM7000_CPU_SCACHE 1617 bool 1618 select BOARD_SCACHE 1619 1620config SIBYTE_DMA_PAGEOPS 1621 bool "Use DMA to clear/copy pages" 1622 depends on CPU_SB1 1623 help 1624 Instead of using the CPU to zero and copy pages, use a Data Mover 1625 channel. These DMA channels are otherwise unused by the standard 1626 SiByte Linux port. Seems to give a small performance benefit. 1627 1628config CPU_HAS_PREFETCH 1629 bool 1630 1631choice 1632 prompt "MIPS MT options" 1633 1634config MIPS_MT_DISABLED 1635 bool "Disable multithreading support." 1636 help 1637 Use this option if your workload can't take advantage of 1638 MIPS hardware multithreading support. On systems that don't have 1639 the option of an MT-enabled processor this option will be the only 1640 option in this menu. 1641 1642config MIPS_MT_SMP 1643 bool "Use 1 TC on each available VPE for SMP" 1644 depends on SYS_SUPPORTS_MULTITHREADING 1645 select CPU_MIPSR2_IRQ_VI 1646 select CPU_MIPSR2_IRQ_EI 1647 select MIPS_MT 1648 select NR_CPUS_DEFAULT_2 1649 select SMP 1650 select SYS_SUPPORTS_SCHED_SMT if SMP 1651 select SYS_SUPPORTS_SMP 1652 select SMP_UP 1653 help 1654 This is a kernel model which is known a VSMP but lately has been 1655 marketesed into SMVP. 1656 Virtual SMP uses the processor's VPEs to implement virtual 1657 processors. In currently available configuration of the 34K processor 1658 this allows for a dual processor. Both processors will share the same 1659 primary caches; each will obtain the half of the TLB for it's own 1660 exclusive use. For a layman this model can be described as similar to 1661 what Intel calls Hyperthreading. 1662 1663 For further information see http://www.linux-mips.org/wiki/34K#VSMP 1664 1665config MIPS_MT_SMTC 1666 bool "SMTC: Use all TCs on all VPEs for SMP" 1667 depends on CPU_MIPS32_R2 1668 #depends on CPU_MIPS64_R2 # once there is hardware ... 1669 depends on SYS_SUPPORTS_MULTITHREADING 1670 select CPU_MIPSR2_IRQ_VI 1671 select CPU_MIPSR2_IRQ_EI 1672 select MIPS_MT 1673 select NR_CPUS_DEFAULT_8 1674 select SMP 1675 select SYS_SUPPORTS_SMP 1676 select SMP_UP 1677 help 1678 This is a kernel model which is known a SMTC or lately has been 1679 marketesed into SMVP. 1680 is presenting the available TC's of the core as processors to Linux. 1681 On currently available 34K processors this means a Linux system will 1682 see up to 5 processors. The implementation of the SMTC kernel differs 1683 significantly from VSMP and cannot efficiently coexist in the same 1684 kernel binary so the choice between VSMP and SMTC is a compile time 1685 decision. 1686 1687 For further information see http://www.linux-mips.org/wiki/34K#SMTC 1688 1689endchoice 1690 1691config MIPS_MT 1692 bool 1693 1694config SCHED_SMT 1695 bool "SMT (multithreading) scheduler support" 1696 depends on SYS_SUPPORTS_SCHED_SMT 1697 default n 1698 help 1699 SMT scheduler support improves the CPU scheduler's decision making 1700 when dealing with MIPS MT enabled cores at a cost of slightly 1701 increased overhead in some places. If unsure say N here. 1702 1703config SYS_SUPPORTS_SCHED_SMT 1704 bool 1705 1706 1707config SYS_SUPPORTS_MULTITHREADING 1708 bool 1709 1710config MIPS_MT_FPAFF 1711 bool "Dynamic FPU affinity for FP-intensive threads" 1712 default y 1713 depends on MIPS_MT_SMP || MIPS_MT_SMTC 1714 1715config MIPS_VPE_LOADER 1716 bool "VPE loader support." 1717 depends on SYS_SUPPORTS_MULTITHREADING 1718 select CPU_MIPSR2_IRQ_VI 1719 select CPU_MIPSR2_IRQ_EI 1720 select MIPS_MT 1721 help 1722 Includes a loader for loading an elf relocatable object 1723 onto another VPE and running it. 1724 1725config MIPS_MT_SMTC_IM_BACKSTOP 1726 bool "Use per-TC register bits as backstop for inhibited IM bits" 1727 depends on MIPS_MT_SMTC 1728 default n 1729 help 1730 To support multiple TC microthreads acting as "CPUs" within 1731 a VPE, VPE-wide interrupt mask bits must be specially manipulated 1732 during interrupt handling. To support legacy drivers and interrupt 1733 controller management code, SMTC has a "backstop" to track and 1734 if necessary restore the interrupt mask. This has some performance 1735 impact on interrupt service overhead. 1736 1737config MIPS_MT_SMTC_IRQAFF 1738 bool "Support IRQ affinity API" 1739 depends on MIPS_MT_SMTC 1740 default n 1741 help 1742 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.) 1743 for SMTC Linux kernel. Requires platform support, of which 1744 an example can be found in the MIPS kernel i8259 and Malta 1745 platform code. Adds some overhead to interrupt dispatch, and 1746 should be used only if you know what you are doing. 1747 1748config MIPS_VPE_LOADER_TOM 1749 bool "Load VPE program into memory hidden from linux" 1750 depends on MIPS_VPE_LOADER 1751 default y 1752 help 1753 The loader can use memory that is present but has been hidden from 1754 Linux using the kernel command line option "mem=xxMB". It's up to 1755 you to ensure the amount you put in the option and the space your 1756 program requires is less or equal to the amount physically present. 1757 1758# this should possibly be in drivers/char, but it is rather cpu related. Hmmm 1759config MIPS_VPE_APSP_API 1760 bool "Enable support for AP/SP API (RTLX)" 1761 depends on MIPS_VPE_LOADER 1762 help 1763 1764config MIPS_APSP_KSPD 1765 bool "Enable KSPD" 1766 depends on MIPS_VPE_APSP_API 1767 default y 1768 help 1769 KSPD is a kernel daemon that accepts syscall requests from the SP 1770 side, actions them and returns the results. It also handles the 1771 "exit" syscall notifying other kernel modules the SP program is 1772 exiting. You probably want to say yes here. 1773 1774config MIPS_CMP 1775 bool "MIPS CMP framework support" 1776 depends on SYS_SUPPORTS_MIPS_CMP 1777 select SYNC_R4K 1778 select SYS_SUPPORTS_SMP 1779 select SYS_SUPPORTS_SCHED_SMT if SMP 1780 select WEAK_ORDERING 1781 default n 1782 help 1783 This is a placeholder option for the GCMP work. It will need to 1784 be handled differently... 1785 1786config SB1_PASS_1_WORKAROUNDS 1787 bool 1788 depends on CPU_SB1_PASS_1 1789 default y 1790 1791config SB1_PASS_2_WORKAROUNDS 1792 bool 1793 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 1794 default y 1795 1796config SB1_PASS_2_1_WORKAROUNDS 1797 bool 1798 depends on CPU_SB1 && CPU_SB1_PASS_2 1799 default y 1800 1801config 64BIT_PHYS_ADDR 1802 bool 1803 1804config ARCH_PHYS_ADDR_T_64BIT 1805 def_bool 64BIT_PHYS_ADDR 1806 1807config CPU_HAS_SMARTMIPS 1808 depends on SYS_SUPPORTS_SMARTMIPS 1809 bool "Support for the SmartMIPS ASE" 1810 help 1811 SmartMIPS is a extension of the MIPS32 architecture aimed at 1812 increased security at both hardware and software level for 1813 smartcards. Enabling this option will allow proper use of the 1814 SmartMIPS instructions by Linux applications. However a kernel with 1815 this option will not work on a MIPS core without SmartMIPS core. If 1816 you don't know you probably don't have SmartMIPS and should say N 1817 here. 1818 1819config CPU_HAS_WB 1820 bool 1821 1822# 1823# Vectored interrupt mode is an R2 feature 1824# 1825config CPU_MIPSR2_IRQ_VI 1826 bool 1827 1828# 1829# Extended interrupt mode is an R2 feature 1830# 1831config CPU_MIPSR2_IRQ_EI 1832 bool 1833 1834config CPU_HAS_SYNC 1835 bool 1836 depends on !CPU_R3000 1837 default y 1838 1839config GENERIC_CLOCKEVENTS_BROADCAST 1840 bool 1841 1842# 1843# CPU non-features 1844# 1845config CPU_DADDI_WORKAROUNDS 1846 bool 1847 1848config CPU_R4000_WORKAROUNDS 1849 bool 1850 select CPU_R4400_WORKAROUNDS 1851 1852config CPU_R4400_WORKAROUNDS 1853 bool 1854 1855# 1856# Use the generic interrupt handling code in kernel/irq/: 1857# 1858config GENERIC_HARDIRQS 1859 bool 1860 default y 1861 1862config GENERIC_IRQ_PROBE 1863 bool 1864 default y 1865 1866config IRQ_PER_CPU 1867 bool 1868 1869# 1870# - Highmem only makes sense for the 32-bit kernel. 1871# - The current highmem code will only work properly on physically indexed 1872# caches such as R3000, SB1, R7000 or those that look like they're virtually 1873# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 1874# moment we protect the user and offer the highmem option only on machines 1875# where it's known to be safe. This will not offer highmem on a few systems 1876# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 1877# indexed CPUs but we're playing safe. 1878# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 1879# know they might have memory configurations that could make use of highmem 1880# support. 1881# 1882config HIGHMEM 1883 bool "High Memory Support" 1884 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM 1885 1886config CPU_SUPPORTS_HIGHMEM 1887 bool 1888 1889config SYS_SUPPORTS_HIGHMEM 1890 bool 1891 1892config SYS_SUPPORTS_SMARTMIPS 1893 bool 1894 1895config ARCH_FLATMEM_ENABLE 1896 def_bool y 1897 depends on !NUMA && !CPU_LOONGSON2 1898 1899config ARCH_DISCONTIGMEM_ENABLE 1900 bool 1901 default y if SGI_IP27 1902 help 1903 Say Y to support efficient handling of discontiguous physical memory, 1904 for architectures which are either NUMA (Non-Uniform Memory Access) 1905 or have huge holes in the physical address space for other reasons. 1906 See <file:Documentation/vm/numa> for more. 1907 1908config ARCH_POPULATES_NODE_MAP 1909 def_bool y 1910 1911config ARCH_SPARSEMEM_ENABLE 1912 bool 1913 select SPARSEMEM_STATIC 1914 1915config NUMA 1916 bool "NUMA Support" 1917 depends on SYS_SUPPORTS_NUMA 1918 help 1919 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 1920 Access). This option improves performance on systems with more 1921 than two nodes; on two node systems it is generally better to 1922 leave it disabled; on single node systems disable this option 1923 disabled. 1924 1925config SYS_SUPPORTS_NUMA 1926 bool 1927 1928config NODES_SHIFT 1929 int 1930 default "6" 1931 depends on NEED_MULTIPLE_NODES 1932 1933source "mm/Kconfig" 1934 1935config SMP 1936 bool "Multi-Processing support" 1937 depends on SYS_SUPPORTS_SMP 1938 select IRQ_PER_CPU 1939 select USE_GENERIC_SMP_HELPERS 1940 help 1941 This enables support for systems with more than one CPU. If you have 1942 a system with only one CPU, like most personal computers, say N. If 1943 you have a system with more than one CPU, say Y. 1944 1945 If you say N here, the kernel will run on single and multiprocessor 1946 machines, but will use only one CPU of a multiprocessor machine. If 1947 you say Y here, the kernel will run on many, but not all, 1948 singleprocessor machines. On a singleprocessor machine, the kernel 1949 will run faster if you say N here. 1950 1951 People using multiprocessor machines who say Y here should also say 1952 Y to "Enhanced Real Time Clock Support", below. 1953 1954 See also the SMP-HOWTO available at 1955 <http://www.tldp.org/docs.html#howto>. 1956 1957 If you don't know what to do here, say N. 1958 1959config SMP_UP 1960 bool 1961 1962config SYS_SUPPORTS_MIPS_CMP 1963 bool 1964 1965config SYS_SUPPORTS_SMP 1966 bool 1967 1968config NR_CPUS_DEFAULT_1 1969 bool 1970 1971config NR_CPUS_DEFAULT_2 1972 bool 1973 1974config NR_CPUS_DEFAULT_4 1975 bool 1976 1977config NR_CPUS_DEFAULT_8 1978 bool 1979 1980config NR_CPUS_DEFAULT_16 1981 bool 1982 1983config NR_CPUS_DEFAULT_32 1984 bool 1985 1986config NR_CPUS_DEFAULT_64 1987 bool 1988 1989config NR_CPUS 1990 int "Maximum number of CPUs (2-64)" 1991 range 1 64 if NR_CPUS_DEFAULT_1 1992 depends on SMP 1993 default "1" if NR_CPUS_DEFAULT_1 1994 default "2" if NR_CPUS_DEFAULT_2 1995 default "4" if NR_CPUS_DEFAULT_4 1996 default "8" if NR_CPUS_DEFAULT_8 1997 default "16" if NR_CPUS_DEFAULT_16 1998 default "32" if NR_CPUS_DEFAULT_32 1999 default "64" if NR_CPUS_DEFAULT_64 2000 help 2001 This allows you to specify the maximum number of CPUs which this 2002 kernel will support. The maximum supported value is 32 for 32-bit 2003 kernel and 64 for 64-bit kernels; the minimum value which makes 2004 sense is 1 for Qemu (useful only for kernel debugging purposes) 2005 and 2 for all others. 2006 2007 This is purely to save memory - each supported CPU adds 2008 approximately eight kilobytes to the kernel image. For best 2009 performance should round up your number of processors to the next 2010 power of two. 2011 2012source "kernel/time/Kconfig" 2013 2014# 2015# Timer Interrupt Frequency Configuration 2016# 2017 2018choice 2019 prompt "Timer frequency" 2020 default HZ_250 2021 help 2022 Allows the configuration of the timer frequency. 2023 2024 config HZ_48 2025 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2026 2027 config HZ_100 2028 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2029 2030 config HZ_128 2031 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2032 2033 config HZ_250 2034 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2035 2036 config HZ_256 2037 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2038 2039 config HZ_1000 2040 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2041 2042 config HZ_1024 2043 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2044 2045endchoice 2046 2047config SYS_SUPPORTS_48HZ 2048 bool 2049 2050config SYS_SUPPORTS_100HZ 2051 bool 2052 2053config SYS_SUPPORTS_128HZ 2054 bool 2055 2056config SYS_SUPPORTS_250HZ 2057 bool 2058 2059config SYS_SUPPORTS_256HZ 2060 bool 2061 2062config SYS_SUPPORTS_1000HZ 2063 bool 2064 2065config SYS_SUPPORTS_1024HZ 2066 bool 2067 2068config SYS_SUPPORTS_ARBIT_HZ 2069 bool 2070 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \ 2071 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \ 2072 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \ 2073 !SYS_SUPPORTS_1024HZ 2074 2075config HZ 2076 int 2077 default 48 if HZ_48 2078 default 100 if HZ_100 2079 default 128 if HZ_128 2080 default 250 if HZ_250 2081 default 256 if HZ_256 2082 default 1000 if HZ_1000 2083 default 1024 if HZ_1024 2084 2085source "kernel/Kconfig.preempt" 2086 2087config MIPS_INSANE_LARGE 2088 bool "Support for large 64-bit configurations" 2089 depends on CPU_R10000 && 64BIT 2090 help 2091 MIPS R10000 does support a 44 bit / 16TB address space as opposed to 2092 previous 64-bit processors which only supported 40 bit / 1TB. If you 2093 need processes of more than 1TB virtual address space, say Y here. 2094 This will result in additional memory usage, so it is not 2095 recommended for normal users. 2096 2097config KEXEC 2098 bool "Kexec system call (EXPERIMENTAL)" 2099 depends on EXPERIMENTAL 2100 help 2101 kexec is a system call that implements the ability to shutdown your 2102 current kernel, and to start another kernel. It is like a reboot 2103 but it is independent of the system firmware. And like a reboot 2104 you can start any kernel with it, not just Linux. 2105 2106 The name comes from the similarity to the exec system call. 2107 2108 It is an ongoing process to be certain the hardware in a machine 2109 is properly shutdown, so do not be surprised if this code does not 2110 initially work for you. It may help to enable device hotplugging 2111 support. As of this writing the exact hardware interface is 2112 strongly in flux, so no good recommendation can be made. 2113 2114config SECCOMP 2115 bool "Enable seccomp to safely compute untrusted bytecode" 2116 depends on PROC_FS 2117 default y 2118 help 2119 This kernel feature is useful for number crunching applications 2120 that may need to compute untrusted bytecode during their 2121 execution. By using pipes or other transports made available to 2122 the process as file descriptors supporting the read/write 2123 syscalls, it's possible to isolate those applications in 2124 their own address space using seccomp. Once seccomp is 2125 enabled via /proc/<pid>/seccomp, it cannot be disabled 2126 and the task is only allowed to execute a few safe syscalls 2127 defined by each seccomp mode. 2128 2129 If unsure, say Y. Only embedded should say N here. 2130 2131config USE_OF 2132 bool "Flattened Device Tree support" 2133 select OF 2134 select OF_FLATTREE 2135 help 2136 Include support for flattened device tree machine descriptions. 2137 2138endmenu 2139 2140config LOCKDEP_SUPPORT 2141 bool 2142 default y 2143 2144config STACKTRACE_SUPPORT 2145 bool 2146 default y 2147 2148source "init/Kconfig" 2149 2150source "kernel/Kconfig.freezer" 2151 2152menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 2153 2154config HW_HAS_EISA 2155 bool 2156config HW_HAS_PCI 2157 bool 2158 2159config PCI 2160 bool "Support for PCI controller" 2161 depends on HW_HAS_PCI 2162 select PCI_DOMAINS 2163 help 2164 Find out whether you have a PCI motherboard. PCI is the name of a 2165 bus system, i.e. the way the CPU talks to the other stuff inside 2166 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, 2167 say Y, otherwise N. 2168 2169config PCI_DOMAINS 2170 bool 2171 2172source "drivers/pci/Kconfig" 2173 2174# 2175# ISA support is now enabled via select. Too many systems still have the one 2176# or other ISA chip on the board that users don't know about so don't expect 2177# users to choose the right thing ... 2178# 2179config ISA 2180 bool 2181 2182config EISA 2183 bool "EISA support" 2184 depends on HW_HAS_EISA 2185 select ISA 2186 select GENERIC_ISA_DMA 2187 ---help--- 2188 The Extended Industry Standard Architecture (EISA) bus was 2189 developed as an open alternative to the IBM MicroChannel bus. 2190 2191 The EISA bus provided some of the features of the IBM MicroChannel 2192 bus while maintaining backward compatibility with cards made for 2193 the older ISA bus. The EISA bus saw limited use between 1988 and 2194 1995 when it was made obsolete by the PCI bus. 2195 2196 Say Y here if you are building a kernel for an EISA-based machine. 2197 2198 Otherwise, say N. 2199 2200source "drivers/eisa/Kconfig" 2201 2202config TC 2203 bool "TURBOchannel support" 2204 depends on MACH_DECSTATION 2205 help 2206 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 2207 processors. TURBOchannel programming specifications are available 2208 at: 2209 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 2210 and: 2211 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 2212 Linux driver support status is documented at: 2213 <http://www.linux-mips.org/wiki/DECstation> 2214 2215#config ACCESSBUS 2216# bool "Access.Bus support" 2217# depends on TC 2218 2219config MMU 2220 bool 2221 default y 2222 2223config I8253 2224 bool 2225 select MIPS_EXTERNAL_TIMER 2226 2227config ZONE_DMA32 2228 bool 2229 2230source "drivers/pcmcia/Kconfig" 2231 2232source "drivers/pci/hotplug/Kconfig" 2233 2234endmenu 2235 2236menu "Executable file formats" 2237 2238source "fs/Kconfig.binfmt" 2239 2240config TRAD_SIGNALS 2241 bool 2242 2243config MIPS32_COMPAT 2244 bool "Kernel support for Linux/MIPS 32-bit binary compatibility" 2245 depends on 64BIT 2246 help 2247 Select this option if you want Linux/MIPS 32-bit binary 2248 compatibility. Since all software available for Linux/MIPS is 2249 currently 32-bit you should say Y here. 2250 2251config COMPAT 2252 bool 2253 depends on MIPS32_COMPAT 2254 default y 2255 2256config SYSVIPC_COMPAT 2257 bool 2258 depends on COMPAT && SYSVIPC 2259 default y 2260 2261config MIPS32_O32 2262 bool "Kernel support for o32 binaries" 2263 depends on MIPS32_COMPAT 2264 help 2265 Select this option if you want to run o32 binaries. These are pure 2266 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 2267 existing binaries are in this format. 2268 2269 If unsure, say Y. 2270 2271config MIPS32_N32 2272 bool "Kernel support for n32 binaries" 2273 depends on MIPS32_COMPAT 2274 help 2275 Select this option if you want to run n32 binaries. These are 2276 64-bit binaries using 32-bit quantities for addressing and certain 2277 data that would normally be 64-bit. They are used in special 2278 cases. 2279 2280 If unsure, say N. 2281 2282config BINFMT_ELF32 2283 bool 2284 default y if MIPS32_O32 || MIPS32_N32 2285 2286endmenu 2287 2288menu "Power management options" 2289 2290config ARCH_HIBERNATION_POSSIBLE 2291 def_bool y 2292 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 2293 2294config ARCH_SUSPEND_POSSIBLE 2295 def_bool y 2296 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 2297 2298source "kernel/power/Kconfig" 2299 2300endmenu 2301 2302source "arch/mips/kernel/cpufreq/Kconfig" 2303 2304source "net/Kconfig" 2305 2306source "drivers/Kconfig" 2307 2308source "fs/Kconfig" 2309 2310source "arch/mips/Kconfig.debug" 2311 2312source "security/Kconfig" 2313 2314source "crypto/Kconfig" 2315 2316source "lib/Kconfig" 2317