1config MIPS 2 bool 3 default y 4 select HAVE_GENERIC_DMA_COHERENT 5 select HAVE_IDE 6 select HAVE_OPROFILE 7 select HAVE_PERF_EVENTS 8 select PERF_USE_VMALLOC 9 select HAVE_ARCH_KGDB 10 select ARCH_HAVE_CUSTOM_GPIO_H 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 HAVE_DEBUG_KMEMLEAK 20 select ARCH_BINFMT_ELF_RANDOMIZE_PIE 21 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT 22 select RTC_LIB if !MACH_LOONGSON 23 select GENERIC_ATOMIC64 if !64BIT 24 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE 25 select HAVE_DMA_ATTRS 26 select HAVE_DMA_API_DEBUG 27 select HAVE_GENERIC_HARDIRQS 28 select GENERIC_IRQ_PROBE 29 select GENERIC_IRQ_SHOW 30 select HAVE_ARCH_JUMP_LABEL 31 select ARCH_WANT_IPC_PARSE_VERSION 32 select IRQ_FORCED_THREADING 33 select HAVE_MEMBLOCK 34 select HAVE_MEMBLOCK_NODE_MAP 35 select ARCH_DISCARD_MEMBLOCK 36 select GENERIC_SMP_IDLE_THREAD 37 select BUILDTIME_EXTABLE_SORT 38 select GENERIC_CLOCKEVENTS 39 select GENERIC_CMOS_UPDATE 40 select HAVE_MOD_ARCH_SPECIFIC 41 select VIRT_TO_BUS 42 select MODULES_USE_ELF_REL if MODULES 43 select MODULES_USE_ELF_RELA if MODULES && 64BIT 44 select CLONE_BACKWARDS 45 46menu "Machine selection" 47 48config ZONE_DMA 49 bool 50 51choice 52 prompt "System type" 53 default SGI_IP22 54 55config MIPS_ALCHEMY 56 bool "Alchemy processor based machines" 57 select 64BIT_PHYS_ADDR 58 select CEVT_R4K 59 select CSRC_R4K 60 select IRQ_CPU 61 select SYS_HAS_CPU_MIPS32_R1 62 select SYS_SUPPORTS_32BIT_KERNEL 63 select SYS_SUPPORTS_APM_EMULATION 64 select GENERIC_GPIO 65 select ARCH_WANT_OPTIONAL_GPIOLIB 66 select SYS_SUPPORTS_ZBOOT 67 select USB_ARCH_HAS_OHCI 68 select USB_ARCH_HAS_EHCI 69 70config AR7 71 bool "Texas Instruments AR7" 72 select BOOT_ELF32 73 select DMA_NONCOHERENT 74 select CEVT_R4K 75 select CSRC_R4K 76 select IRQ_CPU 77 select NO_EXCEPT_FILL 78 select SWAP_IO_SPACE 79 select SYS_HAS_CPU_MIPS32_R1 80 select SYS_HAS_EARLY_PRINTK 81 select SYS_SUPPORTS_32BIT_KERNEL 82 select SYS_SUPPORTS_LITTLE_ENDIAN 83 select SYS_SUPPORTS_ZBOOT_UART16550 84 select ARCH_REQUIRE_GPIOLIB 85 select VLYNQ 86 select HAVE_CLK 87 help 88 Support for the Texas Instruments AR7 System-on-a-Chip 89 family: TNETD7100, 7200 and 7300. 90 91config ATH79 92 bool "Atheros AR71XX/AR724X/AR913X based boards" 93 select ARCH_REQUIRE_GPIOLIB 94 select BOOT_RAW 95 select CEVT_R4K 96 select CSRC_R4K 97 select DMA_NONCOHERENT 98 select HAVE_CLK 99 select IRQ_CPU 100 select MIPS_MACHINE 101 select SYS_HAS_CPU_MIPS32_R2 102 select SYS_HAS_EARLY_PRINTK 103 select SYS_SUPPORTS_32BIT_KERNEL 104 select SYS_SUPPORTS_BIG_ENDIAN 105 help 106 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 107 108config BCM47XX 109 bool "Broadcom BCM47XX based boards" 110 select ARCH_WANT_OPTIONAL_GPIOLIB 111 select BOOT_RAW 112 select CEVT_R4K 113 select CSRC_R4K 114 select DMA_NONCOHERENT 115 select FW_CFE 116 select HW_HAS_PCI 117 select IRQ_CPU 118 select NO_EXCEPT_FILL 119 select SYS_SUPPORTS_32BIT_KERNEL 120 select SYS_SUPPORTS_LITTLE_ENDIAN 121 select SYS_HAS_EARLY_PRINTK 122 help 123 Support for BCM47XX based boards 124 125config BCM63XX 126 bool "Broadcom BCM63XX based boards" 127 select CEVT_R4K 128 select CSRC_R4K 129 select DMA_NONCOHERENT 130 select IRQ_CPU 131 select SYS_HAS_CPU_MIPS32_R1 132 select SYS_SUPPORTS_32BIT_KERNEL 133 select SYS_SUPPORTS_BIG_ENDIAN 134 select SYS_HAS_EARLY_PRINTK 135 select SWAP_IO_SPACE 136 select ARCH_REQUIRE_GPIOLIB 137 select HAVE_CLK 138 help 139 Support for BCM63XX based boards 140 141config MIPS_COBALT 142 bool "Cobalt Server" 143 select CEVT_R4K 144 select CSRC_R4K 145 select CEVT_GT641XX 146 select DMA_NONCOHERENT 147 select HW_HAS_PCI 148 select I8253 149 select I8259 150 select IRQ_CPU 151 select IRQ_GT641XX 152 select PCI_GT64XXX_PCI0 153 select PCI 154 select SYS_HAS_CPU_NEVADA 155 select SYS_HAS_EARLY_PRINTK 156 select SYS_SUPPORTS_32BIT_KERNEL 157 select SYS_SUPPORTS_64BIT_KERNEL 158 select SYS_SUPPORTS_LITTLE_ENDIAN 159 160config MACH_DECSTATION 161 bool "DECstations" 162 select BOOT_ELF32 163 select CEVT_DS1287 164 select CEVT_R4K 165 select CSRC_IOASIC 166 select CSRC_R4K 167 select CPU_DADDI_WORKAROUNDS if 64BIT 168 select CPU_R4000_WORKAROUNDS if 64BIT 169 select CPU_R4400_WORKAROUNDS if 64BIT 170 select DMA_NONCOHERENT 171 select NO_IOPORT 172 select IRQ_CPU 173 select SYS_HAS_CPU_R3000 174 select SYS_HAS_CPU_R4X00 175 select SYS_SUPPORTS_32BIT_KERNEL 176 select SYS_SUPPORTS_64BIT_KERNEL 177 select SYS_SUPPORTS_LITTLE_ENDIAN 178 select SYS_SUPPORTS_128HZ 179 select SYS_SUPPORTS_256HZ 180 select SYS_SUPPORTS_1024HZ 181 help 182 This enables support for DEC's MIPS based workstations. For details 183 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 184 DECstation porting pages on <http://decstation.unix-ag.org/>. 185 186 If you have one of the following DECstation Models you definitely 187 want to choose R4xx0 for the CPU Type: 188 189 DECstation 5000/50 190 DECstation 5000/150 191 DECstation 5000/260 192 DECsystem 5900/260 193 194 otherwise choose R3000. 195 196config MACH_JAZZ 197 bool "Jazz family of machines" 198 select FW_ARC 199 select FW_ARC32 200 select ARCH_MAY_HAVE_PC_FDC 201 select CEVT_R4K 202 select CSRC_R4K 203 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 204 select GENERIC_ISA_DMA 205 select HAVE_PCSPKR_PLATFORM 206 select IRQ_CPU 207 select I8253 208 select I8259 209 select ISA 210 select SYS_HAS_CPU_R4X00 211 select SYS_SUPPORTS_32BIT_KERNEL 212 select SYS_SUPPORTS_64BIT_KERNEL 213 select SYS_SUPPORTS_100HZ 214 help 215 This a family of machines based on the MIPS R4030 chipset which was 216 used by several vendors to build RISC/os and Windows NT workstations. 217 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 218 Olivetti M700-10 workstations. 219 220config MACH_JZ4740 221 bool "Ingenic JZ4740 based machines" 222 select SYS_HAS_CPU_MIPS32_R1 223 select SYS_SUPPORTS_32BIT_KERNEL 224 select SYS_SUPPORTS_LITTLE_ENDIAN 225 select SYS_SUPPORTS_ZBOOT_UART16550 226 select DMA_NONCOHERENT 227 select IRQ_CPU 228 select GENERIC_GPIO 229 select ARCH_REQUIRE_GPIOLIB 230 select SYS_HAS_EARLY_PRINTK 231 select HAVE_PWM 232 select HAVE_CLK 233 select GENERIC_IRQ_CHIP 234 235config LANTIQ 236 bool "Lantiq based platforms" 237 select DMA_NONCOHERENT 238 select IRQ_CPU 239 select CEVT_R4K 240 select CSRC_R4K 241 select SYS_HAS_CPU_MIPS32_R1 242 select SYS_HAS_CPU_MIPS32_R2 243 select SYS_SUPPORTS_BIG_ENDIAN 244 select SYS_SUPPORTS_32BIT_KERNEL 245 select SYS_SUPPORTS_MULTITHREADING 246 select SYS_HAS_EARLY_PRINTK 247 select ARCH_REQUIRE_GPIOLIB 248 select SWAP_IO_SPACE 249 select BOOT_RAW 250 select HAVE_MACH_CLKDEV 251 select CLKDEV_LOOKUP 252 select USE_OF 253 select PINCTRL 254 select PINCTRL_LANTIQ 255 256config LASAT 257 bool "LASAT Networks platforms" 258 select CEVT_R4K 259 select CSRC_R4K 260 select DMA_NONCOHERENT 261 select SYS_HAS_EARLY_PRINTK 262 select HW_HAS_PCI 263 select IRQ_CPU 264 select PCI_GT64XXX_PCI0 265 select MIPS_NILE4 266 select R5000_CPU_SCACHE 267 select SYS_HAS_CPU_R5000 268 select SYS_SUPPORTS_32BIT_KERNEL 269 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 270 select SYS_SUPPORTS_LITTLE_ENDIAN 271 272config MACH_LOONGSON 273 bool "Loongson family of machines" 274 select SYS_SUPPORTS_ZBOOT 275 help 276 This enables the support of Loongson family of machines. 277 278 Loongson is a family of general-purpose MIPS-compatible CPUs. 279 developed at Institute of Computing Technology (ICT), 280 Chinese Academy of Sciences (CAS) in the People's Republic 281 of China. The chief architect is Professor Weiwu Hu. 282 283config MACH_LOONGSON1 284 bool "Loongson 1 family of machines" 285 select SYS_SUPPORTS_ZBOOT 286 help 287 This enables support for the Loongson 1 based machines. 288 289 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by 290 the ICT (Institute of Computing Technology) and the Chinese Academy 291 of Sciences. 292 293config MIPS_MALTA 294 bool "MIPS Malta board" 295 select ARCH_MAY_HAVE_PC_FDC 296 select BOOT_ELF32 297 select BOOT_RAW 298 select CEVT_R4K 299 select CSRC_R4K 300 select CSRC_GIC 301 select DMA_NONCOHERENT 302 select GENERIC_ISA_DMA 303 select HAVE_PCSPKR_PLATFORM 304 select IRQ_CPU 305 select IRQ_GIC 306 select HW_HAS_PCI 307 select I8253 308 select I8259 309 select MIPS_BOARDS_GEN 310 select MIPS_BONITO64 311 select MIPS_CPU_SCACHE 312 select PCI_GT64XXX_PCI0 313 select MIPS_MSC 314 select SWAP_IO_SPACE 315 select SYS_HAS_CPU_MIPS32_R1 316 select SYS_HAS_CPU_MIPS32_R2 317 select SYS_HAS_CPU_MIPS64_R1 318 select SYS_HAS_CPU_MIPS64_R2 319 select SYS_HAS_CPU_NEVADA 320 select SYS_HAS_CPU_RM7000 321 select SYS_HAS_EARLY_PRINTK 322 select SYS_SUPPORTS_32BIT_KERNEL 323 select SYS_SUPPORTS_64BIT_KERNEL 324 select SYS_SUPPORTS_BIG_ENDIAN 325 select SYS_SUPPORTS_LITTLE_ENDIAN 326 select SYS_SUPPORTS_MIPS_CMP 327 select SYS_SUPPORTS_MULTITHREADING 328 select SYS_SUPPORTS_SMARTMIPS 329 select SYS_SUPPORTS_ZBOOT 330 help 331 This enables support for the MIPS Technologies Malta evaluation 332 board. 333 334config MIPS_SEAD3 335 bool "MIPS SEAD3 board" 336 select BOOT_ELF32 337 select BOOT_RAW 338 select CEVT_R4K 339 select CSRC_R4K 340 select CPU_MIPSR2_IRQ_VI 341 select CPU_MIPSR2_IRQ_EI 342 select DMA_NONCOHERENT 343 select IRQ_CPU 344 select IRQ_GIC 345 select MIPS_BOARDS_GEN 346 select MIPS_CPU_SCACHE 347 select MIPS_MSC 348 select SYS_HAS_CPU_MIPS32_R1 349 select SYS_HAS_CPU_MIPS32_R2 350 select SYS_HAS_CPU_MIPS64_R1 351 select SYS_HAS_EARLY_PRINTK 352 select SYS_SUPPORTS_32BIT_KERNEL 353 select SYS_SUPPORTS_64BIT_KERNEL 354 select SYS_SUPPORTS_BIG_ENDIAN 355 select SYS_SUPPORTS_LITTLE_ENDIAN 356 select SYS_SUPPORTS_SMARTMIPS 357 select USB_ARCH_HAS_EHCI 358 select USB_EHCI_BIG_ENDIAN_DESC 359 select USB_EHCI_BIG_ENDIAN_MMIO 360 select USE_OF 361 help 362 This enables support for the MIPS Technologies SEAD3 evaluation 363 board. 364 365config NEC_MARKEINS 366 bool "NEC EMMA2RH Mark-eins board" 367 select SOC_EMMA2RH 368 select HW_HAS_PCI 369 help 370 This enables support for the NEC Electronics Mark-eins boards. 371 372config MACH_VR41XX 373 bool "NEC VR4100 series based machines" 374 select CEVT_R4K 375 select CSRC_R4K 376 select SYS_HAS_CPU_VR41XX 377 select ARCH_REQUIRE_GPIOLIB 378 379config NXP_STB220 380 bool "NXP STB220 board" 381 select SOC_PNX833X 382 help 383 Support for NXP Semiconductors STB220 Development Board. 384 385config NXP_STB225 386 bool "NXP 225 board" 387 select SOC_PNX833X 388 select SOC_PNX8335 389 help 390 Support for NXP Semiconductors STB225 Development Board. 391 392config PMC_MSP 393 bool "PMC-Sierra MSP chipsets" 394 select CEVT_R4K 395 select CSRC_R4K 396 select DMA_NONCOHERENT 397 select SWAP_IO_SPACE 398 select NO_EXCEPT_FILL 399 select BOOT_RAW 400 select SYS_HAS_CPU_MIPS32_R1 401 select SYS_HAS_CPU_MIPS32_R2 402 select SYS_SUPPORTS_32BIT_KERNEL 403 select SYS_SUPPORTS_BIG_ENDIAN 404 select IRQ_CPU 405 select SERIAL_8250 406 select SERIAL_8250_CONSOLE 407 help 408 This adds support for the PMC-Sierra family of Multi-Service 409 Processor System-On-A-Chips. These parts include a number 410 of integrated peripherals, interfaces and DSPs in addition to 411 a variety of MIPS cores. 412 413config POWERTV 414 bool "Cisco PowerTV" 415 select BOOT_ELF32 416 select CEVT_R4K 417 select CPU_MIPSR2_IRQ_VI 418 select CPU_MIPSR2_IRQ_EI 419 select CSRC_POWERTV 420 select DMA_NONCOHERENT 421 select HW_HAS_PCI 422 select SYS_HAS_EARLY_PRINTK 423 select SYS_HAS_CPU_MIPS32_R2 424 select SYS_SUPPORTS_32BIT_KERNEL 425 select SYS_SUPPORTS_BIG_ENDIAN 426 select SYS_SUPPORTS_HIGHMEM 427 select USB_OHCI_LITTLE_ENDIAN 428 help 429 This enables support for the Cisco PowerTV Platform. 430 431config RALINK 432 bool "Ralink based machines" 433 select CEVT_R4K 434 select CSRC_R4K 435 select BOOT_RAW 436 select DMA_NONCOHERENT 437 select IRQ_CPU 438 select USE_OF 439 select SYS_HAS_CPU_MIPS32_R1 440 select SYS_HAS_CPU_MIPS32_R2 441 select SYS_SUPPORTS_32BIT_KERNEL 442 select SYS_SUPPORTS_LITTLE_ENDIAN 443 select SYS_HAS_EARLY_PRINTK 444 select HAVE_MACH_CLKDEV 445 select CLKDEV_LOOKUP 446 447config SGI_IP22 448 bool "SGI IP22 (Indy/Indigo2)" 449 select FW_ARC 450 select FW_ARC32 451 select BOOT_ELF32 452 select CEVT_R4K 453 select CSRC_R4K 454 select DEFAULT_SGI_PARTITION 455 select DMA_NONCOHERENT 456 select HW_HAS_EISA 457 select I8253 458 select I8259 459 select IP22_CPU_SCACHE 460 select IRQ_CPU 461 select GENERIC_ISA_DMA_SUPPORT_BROKEN 462 select SGI_HAS_I8042 463 select SGI_HAS_INDYDOG 464 select SGI_HAS_HAL2 465 select SGI_HAS_SEEQ 466 select SGI_HAS_WD93 467 select SGI_HAS_ZILOG 468 select SWAP_IO_SPACE 469 select SYS_HAS_CPU_R4X00 470 select SYS_HAS_CPU_R5000 471 # 472 # Disable EARLY_PRINTK for now since it leads to overwritten prom 473 # memory during early boot on some machines. 474 # 475 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 476 # for a more details discussion 477 # 478 # select SYS_HAS_EARLY_PRINTK 479 select SYS_SUPPORTS_32BIT_KERNEL 480 select SYS_SUPPORTS_64BIT_KERNEL 481 select SYS_SUPPORTS_BIG_ENDIAN 482 help 483 This are the SGI Indy, Challenge S and Indigo2, as well as certain 484 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 485 that runs on these, say Y here. 486 487config SGI_IP27 488 bool "SGI IP27 (Origin200/2000)" 489 select FW_ARC 490 select FW_ARC64 491 select BOOT_ELF64 492 select DEFAULT_SGI_PARTITION 493 select DMA_COHERENT 494 select SYS_HAS_EARLY_PRINTK 495 select HW_HAS_PCI 496 select NR_CPUS_DEFAULT_64 497 select SYS_HAS_CPU_R10000 498 select SYS_SUPPORTS_64BIT_KERNEL 499 select SYS_SUPPORTS_BIG_ENDIAN 500 select SYS_SUPPORTS_NUMA 501 select SYS_SUPPORTS_SMP 502 help 503 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 504 workstations. To compile a Linux kernel that runs on these, say Y 505 here. 506 507config SGI_IP28 508 bool "SGI IP28 (Indigo2 R10k)" 509 select FW_ARC 510 select FW_ARC64 511 select BOOT_ELF64 512 select CEVT_R4K 513 select CSRC_R4K 514 select DEFAULT_SGI_PARTITION 515 select DMA_NONCOHERENT 516 select GENERIC_ISA_DMA_SUPPORT_BROKEN 517 select IRQ_CPU 518 select HW_HAS_EISA 519 select I8253 520 select I8259 521 select SGI_HAS_I8042 522 select SGI_HAS_INDYDOG 523 select SGI_HAS_HAL2 524 select SGI_HAS_SEEQ 525 select SGI_HAS_WD93 526 select SGI_HAS_ZILOG 527 select SWAP_IO_SPACE 528 select SYS_HAS_CPU_R10000 529 # 530 # Disable EARLY_PRINTK for now since it leads to overwritten prom 531 # memory during early boot on some machines. 532 # 533 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 534 # for a more details discussion 535 # 536 # select SYS_HAS_EARLY_PRINTK 537 select SYS_SUPPORTS_64BIT_KERNEL 538 select SYS_SUPPORTS_BIG_ENDIAN 539 help 540 This is the SGI Indigo2 with R10000 processor. To compile a Linux 541 kernel that runs on these, say Y here. 542 543config SGI_IP32 544 bool "SGI IP32 (O2)" 545 select FW_ARC 546 select FW_ARC32 547 select BOOT_ELF32 548 select CEVT_R4K 549 select CSRC_R4K 550 select DMA_NONCOHERENT 551 select HW_HAS_PCI 552 select IRQ_CPU 553 select R5000_CPU_SCACHE 554 select RM7000_CPU_SCACHE 555 select SYS_HAS_CPU_R5000 556 select SYS_HAS_CPU_R10000 if BROKEN 557 select SYS_HAS_CPU_RM7000 558 select SYS_HAS_CPU_NEVADA 559 select SYS_SUPPORTS_64BIT_KERNEL 560 select SYS_SUPPORTS_BIG_ENDIAN 561 help 562 If you want this kernel to run on SGI O2 workstation, say Y here. 563 564config SIBYTE_CRHINE 565 bool "Sibyte BCM91120C-CRhine" 566 select BOOT_ELF32 567 select DMA_COHERENT 568 select SIBYTE_BCM1120 569 select SWAP_IO_SPACE 570 select SYS_HAS_CPU_SB1 571 select SYS_SUPPORTS_BIG_ENDIAN 572 select SYS_SUPPORTS_LITTLE_ENDIAN 573 574config SIBYTE_CARMEL 575 bool "Sibyte BCM91120x-Carmel" 576 select BOOT_ELF32 577 select DMA_COHERENT 578 select SIBYTE_BCM1120 579 select SWAP_IO_SPACE 580 select SYS_HAS_CPU_SB1 581 select SYS_SUPPORTS_BIG_ENDIAN 582 select SYS_SUPPORTS_LITTLE_ENDIAN 583 584config SIBYTE_CRHONE 585 bool "Sibyte BCM91125C-CRhone" 586 select BOOT_ELF32 587 select DMA_COHERENT 588 select SIBYTE_BCM1125 589 select SWAP_IO_SPACE 590 select SYS_HAS_CPU_SB1 591 select SYS_SUPPORTS_BIG_ENDIAN 592 select SYS_SUPPORTS_HIGHMEM 593 select SYS_SUPPORTS_LITTLE_ENDIAN 594 595config SIBYTE_RHONE 596 bool "Sibyte BCM91125E-Rhone" 597 select BOOT_ELF32 598 select DMA_COHERENT 599 select SIBYTE_BCM1125H 600 select SWAP_IO_SPACE 601 select SYS_HAS_CPU_SB1 602 select SYS_SUPPORTS_BIG_ENDIAN 603 select SYS_SUPPORTS_LITTLE_ENDIAN 604 605config SIBYTE_SWARM 606 bool "Sibyte BCM91250A-SWARM" 607 select BOOT_ELF32 608 select DMA_COHERENT 609 select HAVE_PATA_PLATFORM 610 select NR_CPUS_DEFAULT_2 611 select SIBYTE_SB1250 612 select SWAP_IO_SPACE 613 select SYS_HAS_CPU_SB1 614 select SYS_SUPPORTS_BIG_ENDIAN 615 select SYS_SUPPORTS_HIGHMEM 616 select SYS_SUPPORTS_LITTLE_ENDIAN 617 select ZONE_DMA32 if 64BIT 618 619config SIBYTE_LITTLESUR 620 bool "Sibyte BCM91250C2-LittleSur" 621 select BOOT_ELF32 622 select DMA_COHERENT 623 select HAVE_PATA_PLATFORM 624 select NR_CPUS_DEFAULT_2 625 select SIBYTE_SB1250 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 632config SIBYTE_SENTOSA 633 bool "Sibyte BCM91250E-Sentosa" 634 select BOOT_ELF32 635 select DMA_COHERENT 636 select NR_CPUS_DEFAULT_2 637 select SIBYTE_SB1250 638 select SWAP_IO_SPACE 639 select SYS_HAS_CPU_SB1 640 select SYS_SUPPORTS_BIG_ENDIAN 641 select SYS_SUPPORTS_LITTLE_ENDIAN 642 643config SIBYTE_BIGSUR 644 bool "Sibyte BCM91480B-BigSur" 645 select BOOT_ELF32 646 select DMA_COHERENT 647 select NR_CPUS_DEFAULT_4 648 select SIBYTE_BCM1x80 649 select SWAP_IO_SPACE 650 select SYS_HAS_CPU_SB1 651 select SYS_SUPPORTS_BIG_ENDIAN 652 select SYS_SUPPORTS_HIGHMEM 653 select SYS_SUPPORTS_LITTLE_ENDIAN 654 select ZONE_DMA32 if 64BIT 655 656config SNI_RM 657 bool "SNI RM200/300/400" 658 select FW_ARC if CPU_LITTLE_ENDIAN 659 select FW_ARC32 if CPU_LITTLE_ENDIAN 660 select FW_SNIPROM if CPU_BIG_ENDIAN 661 select ARCH_MAY_HAVE_PC_FDC 662 select BOOT_ELF32 663 select CEVT_R4K 664 select CSRC_R4K 665 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 666 select DMA_NONCOHERENT 667 select GENERIC_ISA_DMA 668 select HAVE_PCSPKR_PLATFORM 669 select HW_HAS_EISA 670 select HW_HAS_PCI 671 select IRQ_CPU 672 select I8253 673 select I8259 674 select ISA 675 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 676 select SYS_HAS_CPU_R4X00 677 select SYS_HAS_CPU_R5000 678 select SYS_HAS_CPU_R10000 679 select R5000_CPU_SCACHE 680 select SYS_HAS_EARLY_PRINTK 681 select SYS_SUPPORTS_32BIT_KERNEL 682 select SYS_SUPPORTS_64BIT_KERNEL 683 select SYS_SUPPORTS_BIG_ENDIAN 684 select SYS_SUPPORTS_HIGHMEM 685 select SYS_SUPPORTS_LITTLE_ENDIAN 686 help 687 The SNI RM200/300/400 are MIPS-based machines manufactured by 688 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 689 Technology and now in turn merged with Fujitsu. Say Y here to 690 support this machine type. 691 692config MACH_TX39XX 693 bool "Toshiba TX39 series based machines" 694 695config MACH_TX49XX 696 bool "Toshiba TX49 series based machines" 697 698config MIKROTIK_RB532 699 bool "Mikrotik RB532 boards" 700 select CEVT_R4K 701 select CSRC_R4K 702 select DMA_NONCOHERENT 703 select HW_HAS_PCI 704 select IRQ_CPU 705 select SYS_HAS_CPU_MIPS32_R1 706 select SYS_SUPPORTS_32BIT_KERNEL 707 select SYS_SUPPORTS_LITTLE_ENDIAN 708 select SWAP_IO_SPACE 709 select BOOT_RAW 710 select ARCH_REQUIRE_GPIOLIB 711 help 712 Support the Mikrotik(tm) RouterBoard 532 series, 713 based on the IDT RC32434 SoC. 714 715config WR_PPMC 716 bool "Wind River PPMC board" 717 select CEVT_R4K 718 select CSRC_R4K 719 select IRQ_CPU 720 select BOOT_ELF32 721 select DMA_NONCOHERENT 722 select HW_HAS_PCI 723 select PCI_GT64XXX_PCI0 724 select SWAP_IO_SPACE 725 select SYS_HAS_CPU_MIPS32_R1 726 select SYS_HAS_CPU_MIPS32_R2 727 select SYS_HAS_CPU_MIPS64_R1 728 select SYS_HAS_CPU_NEVADA 729 select SYS_HAS_CPU_RM7000 730 select SYS_SUPPORTS_32BIT_KERNEL 731 select SYS_SUPPORTS_64BIT_KERNEL 732 select SYS_SUPPORTS_BIG_ENDIAN 733 select SYS_SUPPORTS_LITTLE_ENDIAN 734 help 735 This enables support for the Wind River MIPS32 4KC PPMC evaluation 736 board, which is based on GT64120 bridge chip. 737 738config CAVIUM_OCTEON_SIMULATOR 739 bool "Cavium Networks Octeon Simulator" 740 select CEVT_R4K 741 select 64BIT_PHYS_ADDR 742 select DMA_COHERENT 743 select SYS_SUPPORTS_64BIT_KERNEL 744 select SYS_SUPPORTS_BIG_ENDIAN 745 select SYS_SUPPORTS_HOTPLUG_CPU 746 select SYS_HAS_CPU_CAVIUM_OCTEON 747 select HOLES_IN_ZONE 748 help 749 The Octeon simulator is software performance model of the Cavium 750 Octeon Processor. It supports simulating Octeon processors on x86 751 hardware. 752 753config CAVIUM_OCTEON_REFERENCE_BOARD 754 bool "Cavium Networks Octeon reference board" 755 select CEVT_R4K 756 select 64BIT_PHYS_ADDR 757 select DMA_COHERENT 758 select SYS_SUPPORTS_64BIT_KERNEL 759 select SYS_SUPPORTS_BIG_ENDIAN 760 select EDAC_SUPPORT 761 select SYS_SUPPORTS_HOTPLUG_CPU 762 select SYS_HAS_EARLY_PRINTK 763 select SYS_HAS_CPU_CAVIUM_OCTEON 764 select SWAP_IO_SPACE 765 select HW_HAS_PCI 766 select ARCH_SUPPORTS_MSI 767 select ZONE_DMA32 768 select USB_ARCH_HAS_OHCI 769 select USB_ARCH_HAS_EHCI 770 select HOLES_IN_ZONE 771 help 772 This option supports all of the Octeon reference boards from Cavium 773 Networks. It builds a kernel that dynamically determines the Octeon 774 CPU type and supports all known board reference implementations. 775 Some of the supported boards are: 776 EBT3000 777 EBH3000 778 EBH3100 779 Thunder 780 Kodama 781 Hikari 782 Say Y here for most Octeon reference boards. 783 784config NLM_XLR_BOARD 785 bool "Netlogic XLR/XLS based systems" 786 select BOOT_ELF32 787 select NLM_COMMON 788 select SYS_HAS_CPU_XLR 789 select SYS_SUPPORTS_SMP 790 select HW_HAS_PCI 791 select SWAP_IO_SPACE 792 select SYS_SUPPORTS_32BIT_KERNEL 793 select SYS_SUPPORTS_64BIT_KERNEL 794 select 64BIT_PHYS_ADDR 795 select SYS_SUPPORTS_BIG_ENDIAN 796 select SYS_SUPPORTS_HIGHMEM 797 select DMA_COHERENT 798 select NR_CPUS_DEFAULT_32 799 select CEVT_R4K 800 select CSRC_R4K 801 select IRQ_CPU 802 select ARCH_SUPPORTS_MSI 803 select ZONE_DMA32 if 64BIT 804 select SYNC_R4K 805 select SYS_HAS_EARLY_PRINTK 806 select USB_ARCH_HAS_OHCI if USB_SUPPORT 807 select USB_ARCH_HAS_EHCI if USB_SUPPORT 808 help 809 Support for systems based on Netlogic XLR and XLS processors. 810 Say Y here if you have a XLR or XLS based board. 811 812config NLM_XLP_BOARD 813 bool "Netlogic XLP based systems" 814 select BOOT_ELF32 815 select NLM_COMMON 816 select SYS_HAS_CPU_XLP 817 select SYS_SUPPORTS_SMP 818 select HW_HAS_PCI 819 select SYS_SUPPORTS_32BIT_KERNEL 820 select SYS_SUPPORTS_64BIT_KERNEL 821 select 64BIT_PHYS_ADDR 822 select SYS_SUPPORTS_BIG_ENDIAN 823 select SYS_SUPPORTS_LITTLE_ENDIAN 824 select SYS_SUPPORTS_HIGHMEM 825 select DMA_COHERENT 826 select NR_CPUS_DEFAULT_32 827 select CEVT_R4K 828 select CSRC_R4K 829 select IRQ_CPU 830 select ZONE_DMA32 if 64BIT 831 select SYNC_R4K 832 select SYS_HAS_EARLY_PRINTK 833 select USE_OF 834 help 835 This board is based on Netlogic XLP Processor. 836 Say Y here if you have a XLP based board. 837 838endchoice 839 840source "arch/mips/alchemy/Kconfig" 841source "arch/mips/ath79/Kconfig" 842source "arch/mips/bcm47xx/Kconfig" 843source "arch/mips/bcm63xx/Kconfig" 844source "arch/mips/jazz/Kconfig" 845source "arch/mips/jz4740/Kconfig" 846source "arch/mips/lantiq/Kconfig" 847source "arch/mips/lasat/Kconfig" 848source "arch/mips/pmcs-msp71xx/Kconfig" 849source "arch/mips/powertv/Kconfig" 850source "arch/mips/ralink/Kconfig" 851source "arch/mips/sgi-ip27/Kconfig" 852source "arch/mips/sibyte/Kconfig" 853source "arch/mips/txx9/Kconfig" 854source "arch/mips/vr41xx/Kconfig" 855source "arch/mips/cavium-octeon/Kconfig" 856source "arch/mips/loongson/Kconfig" 857source "arch/mips/loongson1/Kconfig" 858source "arch/mips/netlogic/Kconfig" 859 860endmenu 861 862config RWSEM_GENERIC_SPINLOCK 863 bool 864 default y 865 866config RWSEM_XCHGADD_ALGORITHM 867 bool 868 869config ARCH_HAS_ILOG2_U32 870 bool 871 default n 872 873config ARCH_HAS_ILOG2_U64 874 bool 875 default n 876 877config GENERIC_HWEIGHT 878 bool 879 default y 880 881config GENERIC_CALIBRATE_DELAY 882 bool 883 default y 884 885config SCHED_OMIT_FRAME_POINTER 886 bool 887 default y 888 889# 890# Select some configuration options automatically based on user selections. 891# 892config FW_ARC 893 bool 894 895config ARCH_MAY_HAVE_PC_FDC 896 bool 897 898config BOOT_RAW 899 bool 900 901config CEVT_BCM1480 902 bool 903 904config CEVT_DS1287 905 bool 906 907config CEVT_GT641XX 908 bool 909 910config CEVT_R4K 911 bool 912 913config CEVT_SB1250 914 bool 915 916config CEVT_TXX9 917 bool 918 919config CSRC_BCM1480 920 bool 921 922config CSRC_IOASIC 923 bool 924 925config CSRC_POWERTV 926 bool 927 928config CSRC_R4K 929 bool 930 931config CSRC_GIC 932 bool 933 934config CSRC_SB1250 935 bool 936 937config GPIO_TXX9 938 select GENERIC_GPIO 939 select ARCH_REQUIRE_GPIOLIB 940 bool 941 942config FW_CFE 943 bool 944 945config ARCH_DMA_ADDR_T_64BIT 946 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT 947 948config DMA_COHERENT 949 bool 950 951config DMA_NONCOHERENT 952 bool 953 select NEED_DMA_MAP_STATE 954 955config NEED_DMA_MAP_STATE 956 bool 957 958config SYS_HAS_EARLY_PRINTK 959 bool 960 961config HOTPLUG_CPU 962 bool "Support for hot-pluggable CPUs" 963 depends on SMP && HOTPLUG && SYS_SUPPORTS_HOTPLUG_CPU 964 help 965 Say Y here to allow turning CPUs off and on. CPUs can be 966 controlled through /sys/devices/system/cpu. 967 (Note: power management support will enable this option 968 automatically on SMP systems. ) 969 Say N if you want to disable CPU hotplug. 970 971config SYS_SUPPORTS_HOTPLUG_CPU 972 bool 973 974config I8259 975 bool 976 977config MIPS_BONITO64 978 bool 979 980config MIPS_MSC 981 bool 982 983config MIPS_NILE4 984 bool 985 986config MIPS_DISABLE_OBSOLETE_IDE 987 bool 988 989config SYNC_R4K 990 bool 991 992config MIPS_MACHINE 993 def_bool n 994 995config NO_IOPORT 996 def_bool n 997 998config GENERIC_ISA_DMA 999 bool 1000 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1001 select ISA_DMA_API 1002 1003config GENERIC_ISA_DMA_SUPPORT_BROKEN 1004 bool 1005 select GENERIC_ISA_DMA 1006 1007config ISA_DMA_API 1008 bool 1009 1010config GENERIC_GPIO 1011 bool 1012 1013config HOLES_IN_ZONE 1014 bool 1015 1016# 1017# Endianness selection. Sufficiently obscure so many users don't know what to 1018# answer,so we try hard to limit the available choices. Also the use of a 1019# choice statement should be more obvious to the user. 1020# 1021choice 1022 prompt "Endianness selection" 1023 help 1024 Some MIPS machines can be configured for either little or big endian 1025 byte order. These modes require different kernels and a different 1026 Linux distribution. In general there is one preferred byteorder for a 1027 particular system but some systems are just as commonly used in the 1028 one or the other endianness. 1029 1030config CPU_BIG_ENDIAN 1031 bool "Big endian" 1032 depends on SYS_SUPPORTS_BIG_ENDIAN 1033 1034config CPU_LITTLE_ENDIAN 1035 bool "Little endian" 1036 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1037 help 1038 1039endchoice 1040 1041config EXPORT_UASM 1042 bool 1043 1044config SYS_SUPPORTS_APM_EMULATION 1045 bool 1046 1047config SYS_SUPPORTS_BIG_ENDIAN 1048 bool 1049 1050config SYS_SUPPORTS_LITTLE_ENDIAN 1051 bool 1052 1053config SYS_SUPPORTS_HUGETLBFS 1054 bool 1055 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT 1056 default y 1057 1058config MIPS_HUGE_TLB_SUPPORT 1059 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1060 1061config IRQ_CPU 1062 bool 1063 1064config IRQ_CPU_RM7K 1065 bool 1066 1067config IRQ_MSP_SLP 1068 bool 1069 1070config IRQ_MSP_CIC 1071 bool 1072 1073config IRQ_TXX9 1074 bool 1075 1076config IRQ_GT641XX 1077 bool 1078 1079config IRQ_GIC 1080 bool 1081 1082config MIPS_BOARDS_GEN 1083 bool 1084 1085config PCI_GT64XXX_PCI0 1086 bool 1087 1088config NO_EXCEPT_FILL 1089 bool 1090 1091config SOC_EMMA2RH 1092 bool 1093 select CEVT_R4K 1094 select CSRC_R4K 1095 select DMA_NONCOHERENT 1096 select IRQ_CPU 1097 select SWAP_IO_SPACE 1098 select SYS_HAS_CPU_R5500 1099 select SYS_SUPPORTS_32BIT_KERNEL 1100 select SYS_SUPPORTS_64BIT_KERNEL 1101 select SYS_SUPPORTS_BIG_ENDIAN 1102 1103config SOC_PNX833X 1104 bool 1105 select CEVT_R4K 1106 select CSRC_R4K 1107 select IRQ_CPU 1108 select DMA_NONCOHERENT 1109 select SYS_HAS_CPU_MIPS32_R2 1110 select SYS_SUPPORTS_32BIT_KERNEL 1111 select SYS_SUPPORTS_LITTLE_ENDIAN 1112 select SYS_SUPPORTS_BIG_ENDIAN 1113 select GENERIC_GPIO 1114 select CPU_MIPSR2_IRQ_VI 1115 1116config SOC_PNX8335 1117 bool 1118 select SOC_PNX833X 1119 1120config SWAP_IO_SPACE 1121 bool 1122 1123config SGI_HAS_INDYDOG 1124 bool 1125 1126config SGI_HAS_HAL2 1127 bool 1128 1129config SGI_HAS_SEEQ 1130 bool 1131 1132config SGI_HAS_WD93 1133 bool 1134 1135config SGI_HAS_ZILOG 1136 bool 1137 1138config SGI_HAS_I8042 1139 bool 1140 1141config DEFAULT_SGI_PARTITION 1142 bool 1143 1144config FW_ARC32 1145 bool 1146 1147config FW_SNIPROM 1148 bool 1149 1150config BOOT_ELF32 1151 bool 1152 1153config MIPS_L1_CACHE_SHIFT 1154 int 1155 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL 1156 default "6" if MIPS_CPU_SCACHE 1157 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON 1158 default "5" 1159 1160config HAVE_STD_PC_SERIAL_PORT 1161 bool 1162 1163config ARC_CONSOLE 1164 bool "ARC console support" 1165 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1166 1167config ARC_MEMORY 1168 bool 1169 depends on MACH_JAZZ || SNI_RM || SGI_IP32 1170 default y 1171 1172config ARC_PROMLIB 1173 bool 1174 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 1175 default y 1176 1177config FW_ARC64 1178 bool 1179 1180config BOOT_ELF64 1181 bool 1182 1183menu "CPU selection" 1184 1185choice 1186 prompt "CPU type" 1187 default CPU_R4X00 1188 1189config CPU_LOONGSON2E 1190 bool "Loongson 2E" 1191 depends on SYS_HAS_CPU_LOONGSON2E 1192 select CPU_LOONGSON2 1193 help 1194 The Loongson 2E processor implements the MIPS III instruction set 1195 with many extensions. 1196 1197 It has an internal FPGA northbridge, which is compatible to 1198 bonito64. 1199 1200config CPU_LOONGSON2F 1201 bool "Loongson 2F" 1202 depends on SYS_HAS_CPU_LOONGSON2F 1203 select CPU_LOONGSON2 1204 select GENERIC_GPIO 1205 select ARCH_REQUIRE_GPIOLIB 1206 help 1207 The Loongson 2F processor implements the MIPS III instruction set 1208 with many extensions. 1209 1210 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1211 have a similar programming interface with FPGA northbridge used in 1212 Loongson2E. 1213 1214config CPU_LOONGSON1B 1215 bool "Loongson 1B" 1216 depends on SYS_HAS_CPU_LOONGSON1B 1217 select CPU_LOONGSON1 1218 help 1219 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1220 release 2 instruction set. 1221 1222config CPU_MIPS32_R1 1223 bool "MIPS32 Release 1" 1224 depends on SYS_HAS_CPU_MIPS32_R1 1225 select CPU_HAS_PREFETCH 1226 select CPU_SUPPORTS_32BIT_KERNEL 1227 select CPU_SUPPORTS_HIGHMEM 1228 help 1229 Choose this option to build a kernel for release 1 or later of the 1230 MIPS32 architecture. Most modern embedded systems with a 32-bit 1231 MIPS processor are based on a MIPS32 processor. If you know the 1232 specific type of processor in your system, choose those that one 1233 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1234 Release 2 of the MIPS32 architecture is available since several 1235 years so chances are you even have a MIPS32 Release 2 processor 1236 in which case you should choose CPU_MIPS32_R2 instead for better 1237 performance. 1238 1239config CPU_MIPS32_R2 1240 bool "MIPS32 Release 2" 1241 depends on SYS_HAS_CPU_MIPS32_R2 1242 select CPU_HAS_PREFETCH 1243 select CPU_SUPPORTS_32BIT_KERNEL 1244 select CPU_SUPPORTS_HIGHMEM 1245 help 1246 Choose this option to build a kernel for release 2 or later of the 1247 MIPS32 architecture. Most modern embedded systems with a 32-bit 1248 MIPS processor are based on a MIPS32 processor. If you know the 1249 specific type of processor in your system, choose those that one 1250 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1251 1252config CPU_MIPS64_R1 1253 bool "MIPS64 Release 1" 1254 depends on SYS_HAS_CPU_MIPS64_R1 1255 select CPU_HAS_PREFETCH 1256 select CPU_SUPPORTS_32BIT_KERNEL 1257 select CPU_SUPPORTS_64BIT_KERNEL 1258 select CPU_SUPPORTS_HIGHMEM 1259 select CPU_SUPPORTS_HUGEPAGES 1260 help 1261 Choose this option to build a kernel for release 1 or later of the 1262 MIPS64 architecture. Many modern embedded systems with a 64-bit 1263 MIPS processor are based on a MIPS64 processor. If you know the 1264 specific type of processor in your system, choose those that one 1265 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1266 Release 2 of the MIPS64 architecture is available since several 1267 years so chances are you even have a MIPS64 Release 2 processor 1268 in which case you should choose CPU_MIPS64_R2 instead for better 1269 performance. 1270 1271config CPU_MIPS64_R2 1272 bool "MIPS64 Release 2" 1273 depends on SYS_HAS_CPU_MIPS64_R2 1274 select CPU_HAS_PREFETCH 1275 select CPU_SUPPORTS_32BIT_KERNEL 1276 select CPU_SUPPORTS_64BIT_KERNEL 1277 select CPU_SUPPORTS_HIGHMEM 1278 select CPU_SUPPORTS_HUGEPAGES 1279 help 1280 Choose this option to build a kernel for release 2 or later of the 1281 MIPS64 architecture. Many modern embedded systems with a 64-bit 1282 MIPS processor are based on a MIPS64 processor. If you know the 1283 specific type of processor in your system, choose those that one 1284 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1285 1286config CPU_R3000 1287 bool "R3000" 1288 depends on SYS_HAS_CPU_R3000 1289 select CPU_HAS_WB 1290 select CPU_SUPPORTS_32BIT_KERNEL 1291 select CPU_SUPPORTS_HIGHMEM 1292 help 1293 Please make sure to pick the right CPU type. Linux/MIPS is not 1294 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1295 *not* work on R4000 machines and vice versa. However, since most 1296 of the supported machines have an R4000 (or similar) CPU, R4x00 1297 might be a safe bet. If the resulting kernel does not work, 1298 try to recompile with R3000. 1299 1300config CPU_TX39XX 1301 bool "R39XX" 1302 depends on SYS_HAS_CPU_TX39XX 1303 select CPU_SUPPORTS_32BIT_KERNEL 1304 1305config CPU_VR41XX 1306 bool "R41xx" 1307 depends on SYS_HAS_CPU_VR41XX 1308 select CPU_SUPPORTS_32BIT_KERNEL 1309 select CPU_SUPPORTS_64BIT_KERNEL 1310 help 1311 The options selects support for the NEC VR4100 series of processors. 1312 Only choose this option if you have one of these processors as a 1313 kernel built with this option will not run on any other type of 1314 processor or vice versa. 1315 1316config CPU_R4300 1317 bool "R4300" 1318 depends on SYS_HAS_CPU_R4300 1319 select CPU_SUPPORTS_32BIT_KERNEL 1320 select CPU_SUPPORTS_64BIT_KERNEL 1321 help 1322 MIPS Technologies R4300-series processors. 1323 1324config CPU_R4X00 1325 bool "R4x00" 1326 depends on SYS_HAS_CPU_R4X00 1327 select CPU_SUPPORTS_32BIT_KERNEL 1328 select CPU_SUPPORTS_64BIT_KERNEL 1329 select CPU_SUPPORTS_HUGEPAGES 1330 help 1331 MIPS Technologies R4000-series processors other than 4300, including 1332 the R4000, R4400, R4600, and 4700. 1333 1334config CPU_TX49XX 1335 bool "R49XX" 1336 depends on SYS_HAS_CPU_TX49XX 1337 select CPU_HAS_PREFETCH 1338 select CPU_SUPPORTS_32BIT_KERNEL 1339 select CPU_SUPPORTS_64BIT_KERNEL 1340 select CPU_SUPPORTS_HUGEPAGES 1341 1342config CPU_R5000 1343 bool "R5000" 1344 depends on SYS_HAS_CPU_R5000 1345 select CPU_SUPPORTS_32BIT_KERNEL 1346 select CPU_SUPPORTS_64BIT_KERNEL 1347 select CPU_SUPPORTS_HUGEPAGES 1348 help 1349 MIPS Technologies R5000-series processors other than the Nevada. 1350 1351config CPU_R5432 1352 bool "R5432" 1353 depends on SYS_HAS_CPU_R5432 1354 select CPU_SUPPORTS_32BIT_KERNEL 1355 select CPU_SUPPORTS_64BIT_KERNEL 1356 select CPU_SUPPORTS_HUGEPAGES 1357 1358config CPU_R5500 1359 bool "R5500" 1360 depends on SYS_HAS_CPU_R5500 1361 select CPU_SUPPORTS_32BIT_KERNEL 1362 select CPU_SUPPORTS_64BIT_KERNEL 1363 select CPU_SUPPORTS_HUGEPAGES 1364 help 1365 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1366 instruction set. 1367 1368config CPU_R6000 1369 bool "R6000" 1370 depends on SYS_HAS_CPU_R6000 1371 select CPU_SUPPORTS_32BIT_KERNEL 1372 help 1373 MIPS Technologies R6000 and R6000A series processors. Note these 1374 processors are extremely rare and the support for them is incomplete. 1375 1376config CPU_NEVADA 1377 bool "RM52xx" 1378 depends on SYS_HAS_CPU_NEVADA 1379 select CPU_SUPPORTS_32BIT_KERNEL 1380 select CPU_SUPPORTS_64BIT_KERNEL 1381 select CPU_SUPPORTS_HUGEPAGES 1382 help 1383 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1384 1385config CPU_R8000 1386 bool "R8000" 1387 depends on SYS_HAS_CPU_R8000 1388 select CPU_HAS_PREFETCH 1389 select CPU_SUPPORTS_64BIT_KERNEL 1390 help 1391 MIPS Technologies R8000 processors. Note these processors are 1392 uncommon and the support for them is incomplete. 1393 1394config CPU_R10000 1395 bool "R10000" 1396 depends on SYS_HAS_CPU_R10000 1397 select CPU_HAS_PREFETCH 1398 select CPU_SUPPORTS_32BIT_KERNEL 1399 select CPU_SUPPORTS_64BIT_KERNEL 1400 select CPU_SUPPORTS_HIGHMEM 1401 select CPU_SUPPORTS_HUGEPAGES 1402 help 1403 MIPS Technologies R10000-series processors. 1404 1405config CPU_RM7000 1406 bool "RM7000" 1407 depends on SYS_HAS_CPU_RM7000 1408 select CPU_HAS_PREFETCH 1409 select CPU_SUPPORTS_32BIT_KERNEL 1410 select CPU_SUPPORTS_64BIT_KERNEL 1411 select CPU_SUPPORTS_HIGHMEM 1412 select CPU_SUPPORTS_HUGEPAGES 1413 1414config CPU_SB1 1415 bool "SB1" 1416 depends on SYS_HAS_CPU_SB1 1417 select CPU_SUPPORTS_32BIT_KERNEL 1418 select CPU_SUPPORTS_64BIT_KERNEL 1419 select CPU_SUPPORTS_HIGHMEM 1420 select CPU_SUPPORTS_HUGEPAGES 1421 select WEAK_ORDERING 1422 1423config CPU_CAVIUM_OCTEON 1424 bool "Cavium Octeon processor" 1425 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1426 select ARCH_SPARSEMEM_ENABLE 1427 select CPU_HAS_PREFETCH 1428 select CPU_SUPPORTS_64BIT_KERNEL 1429 select SYS_SUPPORTS_SMP 1430 select NR_CPUS_DEFAULT_16 1431 select WEAK_ORDERING 1432 select CPU_SUPPORTS_HIGHMEM 1433 select CPU_SUPPORTS_HUGEPAGES 1434 select LIBFDT 1435 select USE_OF 1436 help 1437 The Cavium Octeon processor is a highly integrated chip containing 1438 many ethernet hardware widgets for networking tasks. The processor 1439 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1440 Full details can be found at http://www.caviumnetworks.com. 1441 1442config CPU_BMIPS3300 1443 bool "BMIPS3300" 1444 depends on SYS_HAS_CPU_BMIPS3300 1445 select CPU_BMIPS 1446 help 1447 Broadcom BMIPS3300 processors. 1448 1449config CPU_BMIPS4350 1450 bool "BMIPS4350" 1451 depends on SYS_HAS_CPU_BMIPS4350 1452 select CPU_BMIPS 1453 select SYS_SUPPORTS_SMP 1454 select SYS_SUPPORTS_HOTPLUG_CPU 1455 help 1456 Broadcom BMIPS4350 ("VIPER") processors. 1457 1458config CPU_BMIPS4380 1459 bool "BMIPS4380" 1460 depends on SYS_HAS_CPU_BMIPS4380 1461 select CPU_BMIPS 1462 select SYS_SUPPORTS_SMP 1463 select SYS_SUPPORTS_HOTPLUG_CPU 1464 help 1465 Broadcom BMIPS4380 processors. 1466 1467config CPU_BMIPS5000 1468 bool "BMIPS5000" 1469 depends on SYS_HAS_CPU_BMIPS5000 1470 select CPU_BMIPS 1471 select CPU_SUPPORTS_HIGHMEM 1472 select MIPS_CPU_SCACHE 1473 select SYS_SUPPORTS_SMP 1474 select SYS_SUPPORTS_HOTPLUG_CPU 1475 help 1476 Broadcom BMIPS5000 processors. 1477 1478config CPU_XLR 1479 bool "Netlogic XLR SoC" 1480 depends on SYS_HAS_CPU_XLR 1481 select CPU_SUPPORTS_32BIT_KERNEL 1482 select CPU_SUPPORTS_64BIT_KERNEL 1483 select CPU_SUPPORTS_HIGHMEM 1484 select CPU_SUPPORTS_HUGEPAGES 1485 select WEAK_ORDERING 1486 select WEAK_REORDERING_BEYOND_LLSC 1487 help 1488 Netlogic Microsystems XLR/XLS processors. 1489 1490config CPU_XLP 1491 bool "Netlogic XLP SoC" 1492 depends on SYS_HAS_CPU_XLP 1493 select CPU_SUPPORTS_32BIT_KERNEL 1494 select CPU_SUPPORTS_64BIT_KERNEL 1495 select CPU_SUPPORTS_HIGHMEM 1496 select WEAK_ORDERING 1497 select WEAK_REORDERING_BEYOND_LLSC 1498 select CPU_HAS_PREFETCH 1499 select CPU_MIPSR2 1500 help 1501 Netlogic Microsystems XLP processors. 1502endchoice 1503 1504if CPU_LOONGSON2F 1505config CPU_NOP_WORKAROUNDS 1506 bool 1507 1508config CPU_JUMP_WORKAROUNDS 1509 bool 1510 1511config CPU_LOONGSON2F_WORKAROUNDS 1512 bool "Loongson 2F Workarounds" 1513 default y 1514 select CPU_NOP_WORKAROUNDS 1515 select CPU_JUMP_WORKAROUNDS 1516 help 1517 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1518 require workarounds. Without workarounds the system may hang 1519 unexpectedly. For more information please refer to the gas 1520 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1521 1522 Loongson 2F03 and later have fixed these issues and no workarounds 1523 are needed. The workarounds have no significant side effect on them 1524 but may decrease the performance of the system so this option should 1525 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1526 systems. 1527 1528 If unsure, please say Y. 1529endif # CPU_LOONGSON2F 1530 1531config SYS_SUPPORTS_ZBOOT 1532 bool 1533 select HAVE_KERNEL_GZIP 1534 select HAVE_KERNEL_BZIP2 1535 select HAVE_KERNEL_LZMA 1536 select HAVE_KERNEL_LZO 1537 1538config SYS_SUPPORTS_ZBOOT_UART16550 1539 bool 1540 select SYS_SUPPORTS_ZBOOT 1541 1542config CPU_LOONGSON2 1543 bool 1544 select CPU_SUPPORTS_32BIT_KERNEL 1545 select CPU_SUPPORTS_64BIT_KERNEL 1546 select CPU_SUPPORTS_HIGHMEM 1547 select CPU_SUPPORTS_HUGEPAGES 1548 1549config CPU_LOONGSON1 1550 bool 1551 select CPU_MIPS32 1552 select CPU_MIPSR2 1553 select CPU_HAS_PREFETCH 1554 select CPU_SUPPORTS_32BIT_KERNEL 1555 select CPU_SUPPORTS_HIGHMEM 1556 1557config CPU_BMIPS 1558 bool 1559 select CPU_MIPS32 1560 select CPU_SUPPORTS_32BIT_KERNEL 1561 select DMA_NONCOHERENT 1562 select IRQ_CPU 1563 select SWAP_IO_SPACE 1564 select WEAK_ORDERING 1565 1566config SYS_HAS_CPU_LOONGSON2E 1567 bool 1568 1569config SYS_HAS_CPU_LOONGSON2F 1570 bool 1571 select CPU_SUPPORTS_CPUFREQ 1572 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1573 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1574 1575config SYS_HAS_CPU_LOONGSON1B 1576 bool 1577 1578config SYS_HAS_CPU_MIPS32_R1 1579 bool 1580 1581config SYS_HAS_CPU_MIPS32_R2 1582 bool 1583 1584config SYS_HAS_CPU_MIPS64_R1 1585 bool 1586 1587config SYS_HAS_CPU_MIPS64_R2 1588 bool 1589 1590config SYS_HAS_CPU_R3000 1591 bool 1592 1593config SYS_HAS_CPU_TX39XX 1594 bool 1595 1596config SYS_HAS_CPU_VR41XX 1597 bool 1598 1599config SYS_HAS_CPU_R4300 1600 bool 1601 1602config SYS_HAS_CPU_R4X00 1603 bool 1604 1605config SYS_HAS_CPU_TX49XX 1606 bool 1607 1608config SYS_HAS_CPU_R5000 1609 bool 1610 1611config SYS_HAS_CPU_R5432 1612 bool 1613 1614config SYS_HAS_CPU_R5500 1615 bool 1616 1617config SYS_HAS_CPU_R6000 1618 bool 1619 1620config SYS_HAS_CPU_NEVADA 1621 bool 1622 1623config SYS_HAS_CPU_R8000 1624 bool 1625 1626config SYS_HAS_CPU_R10000 1627 bool 1628 1629config SYS_HAS_CPU_RM7000 1630 bool 1631 1632config SYS_HAS_CPU_SB1 1633 bool 1634 1635config SYS_HAS_CPU_CAVIUM_OCTEON 1636 bool 1637 1638config SYS_HAS_CPU_BMIPS3300 1639 bool 1640 1641config SYS_HAS_CPU_BMIPS4350 1642 bool 1643 1644config SYS_HAS_CPU_BMIPS4380 1645 bool 1646 1647config SYS_HAS_CPU_BMIPS5000 1648 bool 1649 1650config SYS_HAS_CPU_XLR 1651 bool 1652 1653config SYS_HAS_CPU_XLP 1654 bool 1655 1656# 1657# CPU may reorder R->R, R->W, W->R, W->W 1658# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 1659# 1660config WEAK_ORDERING 1661 bool 1662 1663# 1664# CPU may reorder reads and writes beyond LL/SC 1665# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 1666# 1667config WEAK_REORDERING_BEYOND_LLSC 1668 bool 1669endmenu 1670 1671# 1672# These two indicate any level of the MIPS32 and MIPS64 architecture 1673# 1674config CPU_MIPS32 1675 bool 1676 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 1677 1678config CPU_MIPS64 1679 bool 1680 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 1681 1682# 1683# These two indicate the revision of the architecture, either Release 1 or Release 2 1684# 1685config CPU_MIPSR1 1686 bool 1687 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 1688 1689config CPU_MIPSR2 1690 bool 1691 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 1692 1693config SYS_SUPPORTS_32BIT_KERNEL 1694 bool 1695config SYS_SUPPORTS_64BIT_KERNEL 1696 bool 1697config CPU_SUPPORTS_32BIT_KERNEL 1698 bool 1699config CPU_SUPPORTS_64BIT_KERNEL 1700 bool 1701config CPU_SUPPORTS_CPUFREQ 1702 bool 1703config CPU_SUPPORTS_ADDRWINCFG 1704 bool 1705config CPU_SUPPORTS_HUGEPAGES 1706 bool 1707config CPU_SUPPORTS_UNCACHED_ACCELERATED 1708 bool 1709config MIPS_PGD_C0_CONTEXT 1710 bool 1711 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP 1712 1713# 1714# Set to y for ptrace access to watch registers. 1715# 1716config HARDWARE_WATCHPOINTS 1717 bool 1718 default y if CPU_MIPSR1 || CPU_MIPSR2 1719 1720menu "Kernel type" 1721 1722choice 1723 prompt "Kernel code model" 1724 help 1725 You should only select this option if you have a workload that 1726 actually benefits from 64-bit processing or if your machine has 1727 large memory. You will only be presented a single option in this 1728 menu if your system does not support both 32-bit and 64-bit kernels. 1729 1730config 32BIT 1731 bool "32-bit kernel" 1732 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 1733 select TRAD_SIGNALS 1734 help 1735 Select this option if you want to build a 32-bit kernel. 1736config 64BIT 1737 bool "64-bit kernel" 1738 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 1739 select HAVE_SYSCALL_WRAPPERS 1740 help 1741 Select this option if you want to build a 64-bit kernel. 1742 1743endchoice 1744 1745choice 1746 prompt "Kernel page size" 1747 default PAGE_SIZE_4KB 1748 1749config PAGE_SIZE_4KB 1750 bool "4kB" 1751 depends on !CPU_LOONGSON2 1752 help 1753 This option select the standard 4kB Linux page size. On some 1754 R3000-family processors this is the only available page size. Using 1755 4kB page size will minimize memory consumption and is therefore 1756 recommended for low memory systems. 1757 1758config PAGE_SIZE_8KB 1759 bool "8kB" 1760 depends on CPU_R8000 || CPU_CAVIUM_OCTEON 1761 help 1762 Using 8kB page size will result in higher performance kernel at 1763 the price of higher memory consumption. This option is available 1764 only on R8000 and cnMIPS processors. Note that you will need a 1765 suitable Linux distribution to support this. 1766 1767config PAGE_SIZE_16KB 1768 bool "16kB" 1769 depends on !CPU_R3000 && !CPU_TX39XX 1770 help 1771 Using 16kB page size will result in higher performance kernel at 1772 the price of higher memory consumption. This option is available on 1773 all non-R3000 family processors. Note that you will need a suitable 1774 Linux distribution to support this. 1775 1776config PAGE_SIZE_32KB 1777 bool "32kB" 1778 depends on CPU_CAVIUM_OCTEON 1779 help 1780 Using 32kB page size will result in higher performance kernel at 1781 the price of higher memory consumption. This option is available 1782 only on cnMIPS cores. Note that you will need a suitable Linux 1783 distribution to support this. 1784 1785config PAGE_SIZE_64KB 1786 bool "64kB" 1787 depends on !CPU_R3000 && !CPU_TX39XX 1788 help 1789 Using 64kB page size will result in higher performance kernel at 1790 the price of higher memory consumption. This option is available on 1791 all non-R3000 family processor. Not that at the time of this 1792 writing this option is still high experimental. 1793 1794endchoice 1795 1796config FORCE_MAX_ZONEORDER 1797 int "Maximum zone order" 1798 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB 1799 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB 1800 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB 1801 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB 1802 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB 1803 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB 1804 range 11 64 1805 default "11" 1806 help 1807 The kernel memory allocator divides physically contiguous memory 1808 blocks into "zones", where each zone is a power of two number of 1809 pages. This option selects the largest power of two that the kernel 1810 keeps in the memory allocator. If you need to allocate very large 1811 blocks of physically contiguous memory, then you may need to 1812 increase this value. 1813 1814 This config option is actually maximum order plus one. For example, 1815 a value of 11 means that the largest free memory block is 2^10 pages. 1816 1817 The page size is not necessarily 4KB. Keep this in mind 1818 when choosing a value for this option. 1819 1820config BOARD_SCACHE 1821 bool 1822 1823config IP22_CPU_SCACHE 1824 bool 1825 select BOARD_SCACHE 1826 1827# 1828# Support for a MIPS32 / MIPS64 style S-caches 1829# 1830config MIPS_CPU_SCACHE 1831 bool 1832 select BOARD_SCACHE 1833 1834config R5000_CPU_SCACHE 1835 bool 1836 select BOARD_SCACHE 1837 1838config RM7000_CPU_SCACHE 1839 bool 1840 select BOARD_SCACHE 1841 1842config SIBYTE_DMA_PAGEOPS 1843 bool "Use DMA to clear/copy pages" 1844 depends on CPU_SB1 1845 help 1846 Instead of using the CPU to zero and copy pages, use a Data Mover 1847 channel. These DMA channels are otherwise unused by the standard 1848 SiByte Linux port. Seems to give a small performance benefit. 1849 1850config CPU_HAS_PREFETCH 1851 bool 1852 1853config CPU_GENERIC_DUMP_TLB 1854 bool 1855 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX) 1856 1857config CPU_R4K_FPU 1858 bool 1859 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 1860 1861config CPU_R4K_CACHE_TLB 1862 bool 1863 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 1864 1865choice 1866 prompt "MIPS MT options" 1867 1868config MIPS_MT_DISABLED 1869 bool "Disable multithreading support." 1870 help 1871 Use this option if your workload can't take advantage of 1872 MIPS hardware multithreading support. On systems that don't have 1873 the option of an MT-enabled processor this option will be the only 1874 option in this menu. 1875 1876config MIPS_MT_SMP 1877 bool "Use 1 TC on each available VPE for SMP" 1878 depends on SYS_SUPPORTS_MULTITHREADING 1879 select CPU_MIPSR2_IRQ_VI 1880 select CPU_MIPSR2_IRQ_EI 1881 select MIPS_MT 1882 select NR_CPUS_DEFAULT_2 1883 select SMP 1884 select SYS_SUPPORTS_SCHED_SMT if SMP 1885 select SYS_SUPPORTS_SMP 1886 select SMP_UP 1887 select MIPS_PERF_SHARED_TC_COUNTERS 1888 help 1889 This is a kernel model which is known a VSMP but lately has been 1890 marketesed into SMVP. 1891 Virtual SMP uses the processor's VPEs to implement virtual 1892 processors. In currently available configuration of the 34K processor 1893 this allows for a dual processor. Both processors will share the same 1894 primary caches; each will obtain the half of the TLB for it's own 1895 exclusive use. For a layman this model can be described as similar to 1896 what Intel calls Hyperthreading. 1897 1898 For further information see http://www.linux-mips.org/wiki/34K#VSMP 1899 1900config MIPS_MT_SMTC 1901 bool "SMTC: Use all TCs on all VPEs for SMP" 1902 depends on CPU_MIPS32_R2 1903 #depends on CPU_MIPS64_R2 # once there is hardware ... 1904 depends on SYS_SUPPORTS_MULTITHREADING 1905 select CPU_MIPSR2_IRQ_VI 1906 select CPU_MIPSR2_IRQ_EI 1907 select MIPS_MT 1908 select NR_CPUS_DEFAULT_8 1909 select SMP 1910 select SYS_SUPPORTS_SMP 1911 select SMP_UP 1912 help 1913 This is a kernel model which is known a SMTC or lately has been 1914 marketesed into SMVP. 1915 is presenting the available TC's of the core as processors to Linux. 1916 On currently available 34K processors this means a Linux system will 1917 see up to 5 processors. The implementation of the SMTC kernel differs 1918 significantly from VSMP and cannot efficiently coexist in the same 1919 kernel binary so the choice between VSMP and SMTC is a compile time 1920 decision. 1921 1922 For further information see http://www.linux-mips.org/wiki/34K#SMTC 1923 1924endchoice 1925 1926config MIPS_MT 1927 bool 1928 1929config SCHED_SMT 1930 bool "SMT (multithreading) scheduler support" 1931 depends on SYS_SUPPORTS_SCHED_SMT 1932 default n 1933 help 1934 SMT scheduler support improves the CPU scheduler's decision making 1935 when dealing with MIPS MT enabled cores at a cost of slightly 1936 increased overhead in some places. If unsure say N here. 1937 1938config SYS_SUPPORTS_SCHED_SMT 1939 bool 1940 1941config SYS_SUPPORTS_MULTITHREADING 1942 bool 1943 1944config MIPS_MT_FPAFF 1945 bool "Dynamic FPU affinity for FP-intensive threads" 1946 default y 1947 depends on MIPS_MT_SMP || MIPS_MT_SMTC 1948 1949config MIPS_VPE_LOADER 1950 bool "VPE loader support." 1951 depends on SYS_SUPPORTS_MULTITHREADING 1952 select CPU_MIPSR2_IRQ_VI 1953 select CPU_MIPSR2_IRQ_EI 1954 select MIPS_MT 1955 help 1956 Includes a loader for loading an elf relocatable object 1957 onto another VPE and running it. 1958 1959config MIPS_MT_SMTC_IM_BACKSTOP 1960 bool "Use per-TC register bits as backstop for inhibited IM bits" 1961 depends on MIPS_MT_SMTC 1962 default n 1963 help 1964 To support multiple TC microthreads acting as "CPUs" within 1965 a VPE, VPE-wide interrupt mask bits must be specially manipulated 1966 during interrupt handling. To support legacy drivers and interrupt 1967 controller management code, SMTC has a "backstop" to track and 1968 if necessary restore the interrupt mask. This has some performance 1969 impact on interrupt service overhead. 1970 1971config MIPS_MT_SMTC_IRQAFF 1972 bool "Support IRQ affinity API" 1973 depends on MIPS_MT_SMTC 1974 default n 1975 help 1976 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.) 1977 for SMTC Linux kernel. Requires platform support, of which 1978 an example can be found in the MIPS kernel i8259 and Malta 1979 platform code. Adds some overhead to interrupt dispatch, and 1980 should be used only if you know what you are doing. 1981 1982config MIPS_VPE_LOADER_TOM 1983 bool "Load VPE program into memory hidden from linux" 1984 depends on MIPS_VPE_LOADER 1985 default y 1986 help 1987 The loader can use memory that is present but has been hidden from 1988 Linux using the kernel command line option "mem=xxMB". It's up to 1989 you to ensure the amount you put in the option and the space your 1990 program requires is less or equal to the amount physically present. 1991 1992# this should possibly be in drivers/char, but it is rather cpu related. Hmmm 1993config MIPS_VPE_APSP_API 1994 bool "Enable support for AP/SP API (RTLX)" 1995 depends on MIPS_VPE_LOADER 1996 help 1997 1998config MIPS_CMP 1999 bool "MIPS CMP framework support" 2000 depends on SYS_SUPPORTS_MIPS_CMP 2001 select SYNC_R4K 2002 select SYS_SUPPORTS_SMP 2003 select SYS_SUPPORTS_SCHED_SMT if SMP 2004 select WEAK_ORDERING 2005 default n 2006 help 2007 This is a placeholder option for the GCMP work. It will need to 2008 be handled differently... 2009 2010config SB1_PASS_1_WORKAROUNDS 2011 bool 2012 depends on CPU_SB1_PASS_1 2013 default y 2014 2015config SB1_PASS_2_WORKAROUNDS 2016 bool 2017 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2018 default y 2019 2020config SB1_PASS_2_1_WORKAROUNDS 2021 bool 2022 depends on CPU_SB1 && CPU_SB1_PASS_2 2023 default y 2024 2025config 64BIT_PHYS_ADDR 2026 bool 2027 2028config ARCH_PHYS_ADDR_T_64BIT 2029 def_bool 64BIT_PHYS_ADDR 2030 2031config CPU_HAS_SMARTMIPS 2032 depends on SYS_SUPPORTS_SMARTMIPS 2033 bool "Support for the SmartMIPS ASE" 2034 help 2035 SmartMIPS is a extension of the MIPS32 architecture aimed at 2036 increased security at both hardware and software level for 2037 smartcards. Enabling this option will allow proper use of the 2038 SmartMIPS instructions by Linux applications. However a kernel with 2039 this option will not work on a MIPS core without SmartMIPS core. If 2040 you don't know you probably don't have SmartMIPS and should say N 2041 here. 2042 2043config CPU_HAS_WB 2044 bool 2045 2046config XKS01 2047 bool 2048 2049# 2050# Vectored interrupt mode is an R2 feature 2051# 2052config CPU_MIPSR2_IRQ_VI 2053 bool 2054 2055# 2056# Extended interrupt mode is an R2 feature 2057# 2058config CPU_MIPSR2_IRQ_EI 2059 bool 2060 2061config CPU_HAS_SYNC 2062 bool 2063 depends on !CPU_R3000 2064 default y 2065 2066# 2067# CPU non-features 2068# 2069config CPU_DADDI_WORKAROUNDS 2070 bool 2071 2072config CPU_R4000_WORKAROUNDS 2073 bool 2074 select CPU_R4400_WORKAROUNDS 2075 2076config CPU_R4400_WORKAROUNDS 2077 bool 2078 2079# 2080# - Highmem only makes sense for the 32-bit kernel. 2081# - The current highmem code will only work properly on physically indexed 2082# caches such as R3000, SB1, R7000 or those that look like they're virtually 2083# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2084# moment we protect the user and offer the highmem option only on machines 2085# where it's known to be safe. This will not offer highmem on a few systems 2086# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2087# indexed CPUs but we're playing safe. 2088# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2089# know they might have memory configurations that could make use of highmem 2090# support. 2091# 2092config HIGHMEM 2093 bool "High Memory Support" 2094 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM 2095 2096config CPU_SUPPORTS_HIGHMEM 2097 bool 2098 2099config SYS_SUPPORTS_HIGHMEM 2100 bool 2101 2102config SYS_SUPPORTS_SMARTMIPS 2103 bool 2104 2105config ARCH_FLATMEM_ENABLE 2106 def_bool y 2107 depends on !NUMA && !CPU_LOONGSON2 2108 2109config ARCH_DISCONTIGMEM_ENABLE 2110 bool 2111 default y if SGI_IP27 2112 help 2113 Say Y to support efficient handling of discontiguous physical memory, 2114 for architectures which are either NUMA (Non-Uniform Memory Access) 2115 or have huge holes in the physical address space for other reasons. 2116 See <file:Documentation/vm/numa> for more. 2117 2118config ARCH_SPARSEMEM_ENABLE 2119 bool 2120 select SPARSEMEM_STATIC 2121 2122config NUMA 2123 bool "NUMA Support" 2124 depends on SYS_SUPPORTS_NUMA 2125 help 2126 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2127 Access). This option improves performance on systems with more 2128 than two nodes; on two node systems it is generally better to 2129 leave it disabled; on single node systems disable this option 2130 disabled. 2131 2132config SYS_SUPPORTS_NUMA 2133 bool 2134 2135config NODES_SHIFT 2136 int 2137 default "6" 2138 depends on NEED_MULTIPLE_NODES 2139 2140config HW_PERF_EVENTS 2141 bool "Enable hardware performance counter support for perf events" 2142 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP) 2143 default y 2144 help 2145 Enable hardware performance counter support for perf events. If 2146 disabled, perf events will use software events only. 2147 2148source "mm/Kconfig" 2149 2150config SMP 2151 bool "Multi-Processing support" 2152 depends on SYS_SUPPORTS_SMP 2153 select USE_GENERIC_SMP_HELPERS 2154 help 2155 This enables support for systems with more than one CPU. If you have 2156 a system with only one CPU, like most personal computers, say N. If 2157 you have a system with more than one CPU, say Y. 2158 2159 If you say N here, the kernel will run on single and multiprocessor 2160 machines, but will use only one CPU of a multiprocessor machine. If 2161 you say Y here, the kernel will run on many, but not all, 2162 singleprocessor machines. On a singleprocessor machine, the kernel 2163 will run faster if you say N here. 2164 2165 People using multiprocessor machines who say Y here should also say 2166 Y to "Enhanced Real Time Clock Support", below. 2167 2168 See also the SMP-HOWTO available at 2169 <http://www.tldp.org/docs.html#howto>. 2170 2171 If you don't know what to do here, say N. 2172 2173config SMP_UP 2174 bool 2175 2176config SYS_SUPPORTS_MIPS_CMP 2177 bool 2178 2179config SYS_SUPPORTS_SMP 2180 bool 2181 2182config NR_CPUS_DEFAULT_1 2183 bool 2184 2185config NR_CPUS_DEFAULT_2 2186 bool 2187 2188config NR_CPUS_DEFAULT_4 2189 bool 2190 2191config NR_CPUS_DEFAULT_8 2192 bool 2193 2194config NR_CPUS_DEFAULT_16 2195 bool 2196 2197config NR_CPUS_DEFAULT_32 2198 bool 2199 2200config NR_CPUS_DEFAULT_64 2201 bool 2202 2203config NR_CPUS 2204 int "Maximum number of CPUs (2-64)" 2205 range 1 64 if NR_CPUS_DEFAULT_1 2206 depends on SMP 2207 default "1" if NR_CPUS_DEFAULT_1 2208 default "2" if NR_CPUS_DEFAULT_2 2209 default "4" if NR_CPUS_DEFAULT_4 2210 default "8" if NR_CPUS_DEFAULT_8 2211 default "16" if NR_CPUS_DEFAULT_16 2212 default "32" if NR_CPUS_DEFAULT_32 2213 default "64" if NR_CPUS_DEFAULT_64 2214 help 2215 This allows you to specify the maximum number of CPUs which this 2216 kernel will support. The maximum supported value is 32 for 32-bit 2217 kernel and 64 for 64-bit kernels; the minimum value which makes 2218 sense is 1 for Qemu (useful only for kernel debugging purposes) 2219 and 2 for all others. 2220 2221 This is purely to save memory - each supported CPU adds 2222 approximately eight kilobytes to the kernel image. For best 2223 performance should round up your number of processors to the next 2224 power of two. 2225 2226config MIPS_PERF_SHARED_TC_COUNTERS 2227 bool 2228 2229# 2230# Timer Interrupt Frequency Configuration 2231# 2232 2233choice 2234 prompt "Timer frequency" 2235 default HZ_250 2236 help 2237 Allows the configuration of the timer frequency. 2238 2239 config HZ_48 2240 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2241 2242 config HZ_100 2243 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2244 2245 config HZ_128 2246 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2247 2248 config HZ_250 2249 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2250 2251 config HZ_256 2252 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2253 2254 config HZ_1000 2255 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2256 2257 config HZ_1024 2258 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2259 2260endchoice 2261 2262config SYS_SUPPORTS_48HZ 2263 bool 2264 2265config SYS_SUPPORTS_100HZ 2266 bool 2267 2268config SYS_SUPPORTS_128HZ 2269 bool 2270 2271config SYS_SUPPORTS_250HZ 2272 bool 2273 2274config SYS_SUPPORTS_256HZ 2275 bool 2276 2277config SYS_SUPPORTS_1000HZ 2278 bool 2279 2280config SYS_SUPPORTS_1024HZ 2281 bool 2282 2283config SYS_SUPPORTS_ARBIT_HZ 2284 bool 2285 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \ 2286 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \ 2287 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \ 2288 !SYS_SUPPORTS_1024HZ 2289 2290config HZ 2291 int 2292 default 48 if HZ_48 2293 default 100 if HZ_100 2294 default 128 if HZ_128 2295 default 250 if HZ_250 2296 default 256 if HZ_256 2297 default 1000 if HZ_1000 2298 default 1024 if HZ_1024 2299 2300source "kernel/Kconfig.preempt" 2301 2302config KEXEC 2303 bool "Kexec system call" 2304 help 2305 kexec is a system call that implements the ability to shutdown your 2306 current kernel, and to start another kernel. It is like a reboot 2307 but it is independent of the system firmware. And like a reboot 2308 you can start any kernel with it, not just Linux. 2309 2310 The name comes from the similarity to the exec system call. 2311 2312 It is an ongoing process to be certain the hardware in a machine 2313 is properly shutdown, so do not be surprised if this code does not 2314 initially work for you. It may help to enable device hotplugging 2315 support. As of this writing the exact hardware interface is 2316 strongly in flux, so no good recommendation can be made. 2317 2318config CRASH_DUMP 2319 bool "Kernel crash dumps" 2320 help 2321 Generate crash dump after being started by kexec. 2322 This should be normally only set in special crash dump kernels 2323 which are loaded in the main kernel with kexec-tools into 2324 a specially reserved region and then later executed after 2325 a crash by kdump/kexec. The crash dump kernel must be compiled 2326 to a memory address not used by the main kernel or firmware using 2327 PHYSICAL_START. 2328 2329config PHYSICAL_START 2330 hex "Physical address where the kernel is loaded" 2331 default "0xffffffff84000000" if 64BIT 2332 default "0x84000000" if 32BIT 2333 depends on CRASH_DUMP 2334 help 2335 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2336 If you plan to use kernel for capturing the crash dump change 2337 this value to start of the reserved region (the "X" value as 2338 specified in the "crashkernel=YM@XM" command line boot parameter 2339 passed to the panic-ed kernel). 2340 2341config SECCOMP 2342 bool "Enable seccomp to safely compute untrusted bytecode" 2343 depends on PROC_FS 2344 default y 2345 help 2346 This kernel feature is useful for number crunching applications 2347 that may need to compute untrusted bytecode during their 2348 execution. By using pipes or other transports made available to 2349 the process as file descriptors supporting the read/write 2350 syscalls, it's possible to isolate those applications in 2351 their own address space using seccomp. Once seccomp is 2352 enabled via /proc/<pid>/seccomp, it cannot be disabled 2353 and the task is only allowed to execute a few safe syscalls 2354 defined by each seccomp mode. 2355 2356 If unsure, say Y. Only embedded should say N here. 2357 2358config USE_OF 2359 bool 2360 select OF 2361 select OF_EARLY_FLATTREE 2362 select IRQ_DOMAIN 2363 2364endmenu 2365 2366config LOCKDEP_SUPPORT 2367 bool 2368 default y 2369 2370config STACKTRACE_SUPPORT 2371 bool 2372 default y 2373 2374source "init/Kconfig" 2375 2376source "kernel/Kconfig.freezer" 2377 2378menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 2379 2380config HW_HAS_EISA 2381 bool 2382config HW_HAS_PCI 2383 bool 2384 2385config PCI 2386 bool "Support for PCI controller" 2387 depends on HW_HAS_PCI 2388 select PCI_DOMAINS 2389 select GENERIC_PCI_IOMAP 2390 select NO_GENERIC_PCI_IOPORT_MAP 2391 help 2392 Find out whether you have a PCI motherboard. PCI is the name of a 2393 bus system, i.e. the way the CPU talks to the other stuff inside 2394 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, 2395 say Y, otherwise N. 2396 2397config PCI_DOMAINS 2398 bool 2399 2400source "drivers/pci/Kconfig" 2401 2402source "drivers/pci/pcie/Kconfig" 2403 2404# 2405# ISA support is now enabled via select. Too many systems still have the one 2406# or other ISA chip on the board that users don't know about so don't expect 2407# users to choose the right thing ... 2408# 2409config ISA 2410 bool 2411 2412config EISA 2413 bool "EISA support" 2414 depends on HW_HAS_EISA 2415 select ISA 2416 select GENERIC_ISA_DMA 2417 ---help--- 2418 The Extended Industry Standard Architecture (EISA) bus was 2419 developed as an open alternative to the IBM MicroChannel bus. 2420 2421 The EISA bus provided some of the features of the IBM MicroChannel 2422 bus while maintaining backward compatibility with cards made for 2423 the older ISA bus. The EISA bus saw limited use between 1988 and 2424 1995 when it was made obsolete by the PCI bus. 2425 2426 Say Y here if you are building a kernel for an EISA-based machine. 2427 2428 Otherwise, say N. 2429 2430source "drivers/eisa/Kconfig" 2431 2432config TC 2433 bool "TURBOchannel support" 2434 depends on MACH_DECSTATION 2435 help 2436 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 2437 processors. TURBOchannel programming specifications are available 2438 at: 2439 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 2440 and: 2441 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 2442 Linux driver support status is documented at: 2443 <http://www.linux-mips.org/wiki/DECstation> 2444 2445config MMU 2446 bool 2447 default y 2448 2449config I8253 2450 bool 2451 select CLKSRC_I8253 2452 select CLKEVT_I8253 2453 select MIPS_EXTERNAL_TIMER 2454 2455config ZONE_DMA32 2456 bool 2457 2458source "drivers/pcmcia/Kconfig" 2459 2460source "drivers/pci/hotplug/Kconfig" 2461 2462config RAPIDIO 2463 bool "RapidIO support" 2464 depends on PCI 2465 default n 2466 help 2467 If you say Y here, the kernel will include drivers and 2468 infrastructure code to support RapidIO interconnect devices. 2469 2470source "drivers/rapidio/Kconfig" 2471 2472endmenu 2473 2474menu "Executable file formats" 2475 2476source "fs/Kconfig.binfmt" 2477 2478config TRAD_SIGNALS 2479 bool 2480 2481config MIPS32_COMPAT 2482 bool "Kernel support for Linux/MIPS 32-bit binary compatibility" 2483 depends on 64BIT 2484 help 2485 Select this option if you want Linux/MIPS 32-bit binary 2486 compatibility. Since all software available for Linux/MIPS is 2487 currently 32-bit you should say Y here. 2488 2489config COMPAT 2490 bool 2491 depends on MIPS32_COMPAT 2492 select ARCH_WANT_OLD_COMPAT_IPC 2493 default y 2494 2495config SYSVIPC_COMPAT 2496 bool 2497 depends on COMPAT && SYSVIPC 2498 default y 2499 2500config MIPS32_O32 2501 bool "Kernel support for o32 binaries" 2502 depends on MIPS32_COMPAT 2503 help 2504 Select this option if you want to run o32 binaries. These are pure 2505 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 2506 existing binaries are in this format. 2507 2508 If unsure, say Y. 2509 2510config MIPS32_N32 2511 bool "Kernel support for n32 binaries" 2512 depends on MIPS32_COMPAT 2513 help 2514 Select this option if you want to run n32 binaries. These are 2515 64-bit binaries using 32-bit quantities for addressing and certain 2516 data that would normally be 64-bit. They are used in special 2517 cases. 2518 2519 If unsure, say N. 2520 2521config BINFMT_ELF32 2522 bool 2523 default y if MIPS32_O32 || MIPS32_N32 2524 2525endmenu 2526 2527menu "Power management options" 2528 2529config ARCH_HIBERNATION_POSSIBLE 2530 def_bool y 2531 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 2532 2533config ARCH_SUSPEND_POSSIBLE 2534 def_bool y 2535 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 2536 2537source "kernel/power/Kconfig" 2538 2539endmenu 2540 2541source "arch/mips/kernel/cpufreq/Kconfig" 2542 2543source "net/Kconfig" 2544 2545source "drivers/Kconfig" 2546 2547source "drivers/firmware/Kconfig" 2548 2549source "fs/Kconfig" 2550 2551source "arch/mips/Kconfig.debug" 2552 2553source "security/Kconfig" 2554 2555source "crypto/Kconfig" 2556 2557source "lib/Kconfig" 2558