1config MIPS 2 bool 3 default y 4 select HAVE_CONTEXT_TRACKING 5 select HAVE_GENERIC_DMA_COHERENT 6 select HAVE_IDE 7 select HAVE_OPROFILE 8 select HAVE_PERF_EVENTS 9 select PERF_USE_VMALLOC 10 select HAVE_ARCH_KGDB 11 select ARCH_HAVE_CUSTOM_GPIO_H 12 select HAVE_FUNCTION_TRACER 13 select HAVE_FUNCTION_TRACE_MCOUNT_TEST 14 select HAVE_DYNAMIC_FTRACE 15 select HAVE_FTRACE_MCOUNT_RECORD 16 select HAVE_C_RECORDMCOUNT 17 select HAVE_FUNCTION_GRAPH_TRACER 18 select HAVE_KPROBES 19 select HAVE_KRETPROBES 20 select HAVE_DEBUG_KMEMLEAK 21 select ARCH_BINFMT_ELF_RANDOMIZE_PIE 22 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT 23 select RTC_LIB if !MACH_LOONGSON 24 select GENERIC_ATOMIC64 if !64BIT 25 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE 26 select HAVE_DMA_ATTRS 27 select HAVE_DMA_API_DEBUG 28 select GENERIC_IRQ_PROBE 29 select GENERIC_IRQ_SHOW 30 select GENERIC_PCI_IOMAP 31 select HAVE_ARCH_JUMP_LABEL 32 select ARCH_WANT_IPC_PARSE_VERSION 33 select IRQ_FORCED_THREADING 34 select HAVE_MEMBLOCK 35 select HAVE_MEMBLOCK_NODE_MAP 36 select ARCH_DISCARD_MEMBLOCK 37 select GENERIC_SMP_IDLE_THREAD 38 select BUILDTIME_EXTABLE_SORT 39 select GENERIC_CLOCKEVENTS 40 select GENERIC_CMOS_UPDATE 41 select HAVE_MOD_ARCH_SPECIFIC 42 select VIRT_TO_BUS 43 select MODULES_USE_ELF_REL if MODULES 44 select MODULES_USE_ELF_RELA if MODULES && 64BIT 45 select CLONE_BACKWARDS 46 select HAVE_DEBUG_STACKOVERFLOW 47 48menu "Machine selection" 49 50choice 51 prompt "System type" 52 default SGI_IP22 53 54config MIPS_ALCHEMY 55 bool "Alchemy processor based machines" 56 select 64BIT_PHYS_ADDR 57 select CEVT_R4K 58 select CSRC_R4K 59 select IRQ_CPU 60 select SYS_HAS_CPU_MIPS32_R1 61 select SYS_SUPPORTS_32BIT_KERNEL 62 select SYS_SUPPORTS_APM_EMULATION 63 select ARCH_REQUIRE_GPIOLIB 64 select SYS_SUPPORTS_ZBOOT 65 select USB_ARCH_HAS_OHCI 66 select USB_ARCH_HAS_EHCI 67 68config AR7 69 bool "Texas Instruments AR7" 70 select BOOT_ELF32 71 select DMA_NONCOHERENT 72 select CEVT_R4K 73 select CSRC_R4K 74 select IRQ_CPU 75 select NO_EXCEPT_FILL 76 select SWAP_IO_SPACE 77 select SYS_HAS_CPU_MIPS32_R1 78 select SYS_HAS_EARLY_PRINTK 79 select SYS_SUPPORTS_32BIT_KERNEL 80 select SYS_SUPPORTS_LITTLE_ENDIAN 81 select SYS_SUPPORTS_ZBOOT_UART16550 82 select ARCH_REQUIRE_GPIOLIB 83 select VLYNQ 84 select HAVE_CLK 85 help 86 Support for the Texas Instruments AR7 System-on-a-Chip 87 family: TNETD7100, 7200 and 7300. 88 89config ATH79 90 bool "Atheros AR71XX/AR724X/AR913X based boards" 91 select ARCH_REQUIRE_GPIOLIB 92 select BOOT_RAW 93 select CEVT_R4K 94 select CSRC_R4K 95 select DMA_NONCOHERENT 96 select HAVE_CLK 97 select CLKDEV_LOOKUP 98 select IRQ_CPU 99 select MIPS_MACHINE 100 select SYS_HAS_CPU_MIPS32_R2 101 select SYS_HAS_EARLY_PRINTK 102 select SYS_SUPPORTS_32BIT_KERNEL 103 select SYS_SUPPORTS_BIG_ENDIAN 104 help 105 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 106 107config BCM47XX 108 bool "Broadcom BCM47XX based boards" 109 select ARCH_WANT_OPTIONAL_GPIOLIB 110 select BOOT_RAW 111 select CEVT_R4K 112 select CSRC_R4K 113 select DMA_NONCOHERENT 114 select FW_CFE 115 select HW_HAS_PCI 116 select IRQ_CPU 117 select SYS_HAS_CPU_MIPS32_R1 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 BOOT_RAW 128 select CEVT_R4K 129 select CSRC_R4K 130 select DMA_NONCOHERENT 131 select IRQ_CPU 132 select SYS_HAS_CPU_MIPS32_R1 133 select SYS_HAS_CPU_BMIPS4350 if !BCM63XX_CPU_6338 && !BCM63XX_CPU_6345 && !BCM63XX_CPU_6348 134 select SYS_SUPPORTS_32BIT_KERNEL 135 select SYS_SUPPORTS_BIG_ENDIAN 136 select SYS_HAS_EARLY_PRINTK 137 select SWAP_IO_SPACE 138 select ARCH_REQUIRE_GPIOLIB 139 select HAVE_CLK 140 help 141 Support for BCM63XX based boards 142 143config MIPS_COBALT 144 bool "Cobalt Server" 145 select CEVT_R4K 146 select CSRC_R4K 147 select CEVT_GT641XX 148 select DMA_NONCOHERENT 149 select HW_HAS_PCI 150 select I8253 151 select I8259 152 select IRQ_CPU 153 select IRQ_GT641XX 154 select PCI_GT64XXX_PCI0 155 select PCI 156 select SYS_HAS_CPU_NEVADA 157 select SYS_HAS_EARLY_PRINTK 158 select SYS_SUPPORTS_32BIT_KERNEL 159 select SYS_SUPPORTS_64BIT_KERNEL 160 select SYS_SUPPORTS_LITTLE_ENDIAN 161 162config MACH_DECSTATION 163 bool "DECstations" 164 select BOOT_ELF32 165 select CEVT_DS1287 166 select CEVT_R4K 167 select CSRC_IOASIC 168 select CSRC_R4K 169 select CPU_DADDI_WORKAROUNDS if 64BIT 170 select CPU_R4000_WORKAROUNDS if 64BIT 171 select CPU_R4400_WORKAROUNDS if 64BIT 172 select DMA_NONCOHERENT 173 select NO_IOPORT 174 select IRQ_CPU 175 select SYS_HAS_CPU_R3000 176 select SYS_HAS_CPU_R4X00 177 select SYS_SUPPORTS_32BIT_KERNEL 178 select SYS_SUPPORTS_64BIT_KERNEL 179 select SYS_SUPPORTS_LITTLE_ENDIAN 180 select SYS_SUPPORTS_128HZ 181 select SYS_SUPPORTS_256HZ 182 select SYS_SUPPORTS_1024HZ 183 help 184 This enables support for DEC's MIPS based workstations. For details 185 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 186 DECstation porting pages on <http://decstation.unix-ag.org/>. 187 188 If you have one of the following DECstation Models you definitely 189 want to choose R4xx0 for the CPU Type: 190 191 DECstation 5000/50 192 DECstation 5000/150 193 DECstation 5000/260 194 DECsystem 5900/260 195 196 otherwise choose R3000. 197 198config MACH_JAZZ 199 bool "Jazz family of machines" 200 select FW_ARC 201 select FW_ARC32 202 select ARCH_MAY_HAVE_PC_FDC 203 select CEVT_R4K 204 select CSRC_R4K 205 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 206 select GENERIC_ISA_DMA 207 select HAVE_PCSPKR_PLATFORM 208 select IRQ_CPU 209 select I8253 210 select I8259 211 select ISA 212 select SYS_HAS_CPU_R4X00 213 select SYS_SUPPORTS_32BIT_KERNEL 214 select SYS_SUPPORTS_64BIT_KERNEL 215 select SYS_SUPPORTS_100HZ 216 help 217 This a family of machines based on the MIPS R4030 chipset which was 218 used by several vendors to build RISC/os and Windows NT workstations. 219 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 220 Olivetti M700-10 workstations. 221 222config MACH_JZ4740 223 bool "Ingenic JZ4740 based machines" 224 select SYS_HAS_CPU_MIPS32_R1 225 select SYS_SUPPORTS_32BIT_KERNEL 226 select SYS_SUPPORTS_LITTLE_ENDIAN 227 select SYS_SUPPORTS_ZBOOT_UART16550 228 select DMA_NONCOHERENT 229 select IRQ_CPU 230 select ARCH_REQUIRE_GPIOLIB 231 select SYS_HAS_EARLY_PRINTK 232 select HAVE_PWM 233 select HAVE_CLK 234 select GENERIC_IRQ_CHIP 235 236config LANTIQ 237 bool "Lantiq based platforms" 238 select DMA_NONCOHERENT 239 select IRQ_CPU 240 select CEVT_R4K 241 select CSRC_R4K 242 select SYS_HAS_CPU_MIPS32_R1 243 select SYS_HAS_CPU_MIPS32_R2 244 select SYS_SUPPORTS_BIG_ENDIAN 245 select SYS_SUPPORTS_32BIT_KERNEL 246 select SYS_SUPPORTS_MULTITHREADING 247 select SYS_HAS_EARLY_PRINTK 248 select ARCH_REQUIRE_GPIOLIB 249 select SWAP_IO_SPACE 250 select BOOT_RAW 251 select HAVE_MACH_CLKDEV 252 select CLKDEV_LOOKUP 253 select USE_OF 254 select PINCTRL 255 select PINCTRL_LANTIQ 256 257config LASAT 258 bool "LASAT Networks platforms" 259 select CEVT_R4K 260 select CSRC_R4K 261 select DMA_NONCOHERENT 262 select SYS_HAS_EARLY_PRINTK 263 select HW_HAS_PCI 264 select IRQ_CPU 265 select PCI_GT64XXX_PCI0 266 select MIPS_NILE4 267 select R5000_CPU_SCACHE 268 select SYS_HAS_CPU_R5000 269 select SYS_SUPPORTS_32BIT_KERNEL 270 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 271 select SYS_SUPPORTS_LITTLE_ENDIAN 272 273config MACH_LOONGSON 274 bool "Loongson family of machines" 275 select SYS_SUPPORTS_ZBOOT 276 help 277 This enables the support of Loongson family of machines. 278 279 Loongson is a family of general-purpose MIPS-compatible CPUs. 280 developed at Institute of Computing Technology (ICT), 281 Chinese Academy of Sciences (CAS) in the People's Republic 282 of China. The chief architect is Professor Weiwu Hu. 283 284config MACH_LOONGSON1 285 bool "Loongson 1 family of machines" 286 select SYS_SUPPORTS_ZBOOT 287 help 288 This enables support for the Loongson 1 based machines. 289 290 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by 291 the ICT (Institute of Computing Technology) and the Chinese Academy 292 of Sciences. 293 294config MIPS_MALTA 295 bool "MIPS Malta board" 296 select ARCH_MAY_HAVE_PC_FDC 297 select BOOT_ELF32 298 select BOOT_RAW 299 select CEVT_R4K 300 select CSRC_R4K 301 select CSRC_GIC 302 select DMA_NONCOHERENT 303 select GENERIC_ISA_DMA 304 select HAVE_PCSPKR_PLATFORM 305 select IRQ_CPU 306 select IRQ_GIC 307 select HW_HAS_PCI 308 select I8253 309 select I8259 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 CSRC_GIC 341 select CPU_MIPSR2_IRQ_VI 342 select CPU_MIPSR2_IRQ_EI 343 select DMA_NONCOHERENT 344 select IRQ_CPU 345 select IRQ_GIC 346 select MIPS_MSC 347 select SYS_HAS_CPU_MIPS32_R1 348 select SYS_HAS_CPU_MIPS32_R2 349 select SYS_HAS_CPU_MIPS64_R1 350 select SYS_HAS_EARLY_PRINTK 351 select SYS_SUPPORTS_32BIT_KERNEL 352 select SYS_SUPPORTS_64BIT_KERNEL 353 select SYS_SUPPORTS_BIG_ENDIAN 354 select SYS_SUPPORTS_LITTLE_ENDIAN 355 select SYS_SUPPORTS_SMARTMIPS 356 select SYS_SUPPORTS_MICROMIPS 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 select USB_EHCI_BIG_ENDIAN_MMIO 408 select USB_EHCI_BIG_ENDIAN_DESC 409 help 410 This adds support for the PMC-Sierra family of Multi-Service 411 Processor System-On-A-Chips. These parts include a number 412 of integrated peripherals, interfaces and DSPs in addition to 413 a variety of MIPS cores. 414 415config POWERTV 416 bool "Cisco PowerTV" 417 select BOOT_ELF32 418 select CEVT_R4K 419 select CPU_MIPSR2_IRQ_VI 420 select CPU_MIPSR2_IRQ_EI 421 select CSRC_POWERTV 422 select DMA_NONCOHERENT 423 select HW_HAS_PCI 424 select SYS_HAS_CPU_MIPS32_R2 425 select SYS_SUPPORTS_32BIT_KERNEL 426 select SYS_SUPPORTS_BIG_ENDIAN 427 select SYS_SUPPORTS_HIGHMEM 428 select USB_OHCI_LITTLE_ENDIAN 429 help 430 This enables support for the Cisco PowerTV Platform. 431 432config RALINK 433 bool "Ralink based machines" 434 select CEVT_R4K 435 select CSRC_R4K 436 select BOOT_RAW 437 select DMA_NONCOHERENT 438 select IRQ_CPU 439 select USE_OF 440 select SYS_HAS_CPU_MIPS32_R1 441 select SYS_HAS_CPU_MIPS32_R2 442 select SYS_SUPPORTS_32BIT_KERNEL 443 select SYS_SUPPORTS_LITTLE_ENDIAN 444 select SYS_HAS_EARLY_PRINTK 445 select HAVE_MACH_CLKDEV 446 select CLKDEV_LOOKUP 447 select ARCH_HAS_RESET_CONTROLLER 448 select RESET_CONTROLLER 449 450config SGI_IP22 451 bool "SGI IP22 (Indy/Indigo2)" 452 select FW_ARC 453 select FW_ARC32 454 select BOOT_ELF32 455 select CEVT_R4K 456 select CSRC_R4K 457 select DEFAULT_SGI_PARTITION 458 select DMA_NONCOHERENT 459 select HW_HAS_EISA 460 select I8253 461 select I8259 462 select IP22_CPU_SCACHE 463 select IRQ_CPU 464 select GENERIC_ISA_DMA_SUPPORT_BROKEN 465 select SGI_HAS_I8042 466 select SGI_HAS_INDYDOG 467 select SGI_HAS_HAL2 468 select SGI_HAS_SEEQ 469 select SGI_HAS_WD93 470 select SGI_HAS_ZILOG 471 select SWAP_IO_SPACE 472 select SYS_HAS_CPU_R4X00 473 select SYS_HAS_CPU_R5000 474 # 475 # Disable EARLY_PRINTK for now since it leads to overwritten prom 476 # memory during early boot on some machines. 477 # 478 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 479 # for a more details discussion 480 # 481 # select SYS_HAS_EARLY_PRINTK 482 select SYS_SUPPORTS_32BIT_KERNEL 483 select SYS_SUPPORTS_64BIT_KERNEL 484 select SYS_SUPPORTS_BIG_ENDIAN 485 help 486 This are the SGI Indy, Challenge S and Indigo2, as well as certain 487 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 488 that runs on these, say Y here. 489 490config SGI_IP27 491 bool "SGI IP27 (Origin200/2000)" 492 select FW_ARC 493 select FW_ARC64 494 select BOOT_ELF64 495 select DEFAULT_SGI_PARTITION 496 select DMA_COHERENT 497 select SYS_HAS_EARLY_PRINTK 498 select HW_HAS_PCI 499 select NR_CPUS_DEFAULT_64 500 select SYS_HAS_CPU_R10000 501 select SYS_SUPPORTS_64BIT_KERNEL 502 select SYS_SUPPORTS_BIG_ENDIAN 503 select SYS_SUPPORTS_NUMA 504 select SYS_SUPPORTS_SMP 505 help 506 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 507 workstations. To compile a Linux kernel that runs on these, say Y 508 here. 509 510config SGI_IP28 511 bool "SGI IP28 (Indigo2 R10k)" 512 select FW_ARC 513 select FW_ARC64 514 select BOOT_ELF64 515 select CEVT_R4K 516 select CSRC_R4K 517 select DEFAULT_SGI_PARTITION 518 select DMA_NONCOHERENT 519 select GENERIC_ISA_DMA_SUPPORT_BROKEN 520 select IRQ_CPU 521 select HW_HAS_EISA 522 select I8253 523 select I8259 524 select SGI_HAS_I8042 525 select SGI_HAS_INDYDOG 526 select SGI_HAS_HAL2 527 select SGI_HAS_SEEQ 528 select SGI_HAS_WD93 529 select SGI_HAS_ZILOG 530 select SWAP_IO_SPACE 531 select SYS_HAS_CPU_R10000 532 # 533 # Disable EARLY_PRINTK for now since it leads to overwritten prom 534 # memory during early boot on some machines. 535 # 536 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 537 # for a more details discussion 538 # 539 # select SYS_HAS_EARLY_PRINTK 540 select SYS_SUPPORTS_64BIT_KERNEL 541 select SYS_SUPPORTS_BIG_ENDIAN 542 help 543 This is the SGI Indigo2 with R10000 processor. To compile a Linux 544 kernel that runs on these, say Y here. 545 546config SGI_IP32 547 bool "SGI IP32 (O2)" 548 select FW_ARC 549 select FW_ARC32 550 select BOOT_ELF32 551 select CEVT_R4K 552 select CSRC_R4K 553 select DMA_NONCOHERENT 554 select HW_HAS_PCI 555 select IRQ_CPU 556 select R5000_CPU_SCACHE 557 select RM7000_CPU_SCACHE 558 select SYS_HAS_CPU_R5000 559 select SYS_HAS_CPU_R10000 if BROKEN 560 select SYS_HAS_CPU_RM7000 561 select SYS_HAS_CPU_NEVADA 562 select SYS_SUPPORTS_64BIT_KERNEL 563 select SYS_SUPPORTS_BIG_ENDIAN 564 help 565 If you want this kernel to run on SGI O2 workstation, say Y here. 566 567config SIBYTE_CRHINE 568 bool "Sibyte BCM91120C-CRhine" 569 select BOOT_ELF32 570 select DMA_COHERENT 571 select SIBYTE_BCM1120 572 select SWAP_IO_SPACE 573 select SYS_HAS_CPU_SB1 574 select SYS_SUPPORTS_BIG_ENDIAN 575 select SYS_SUPPORTS_LITTLE_ENDIAN 576 577config SIBYTE_CARMEL 578 bool "Sibyte BCM91120x-Carmel" 579 select BOOT_ELF32 580 select DMA_COHERENT 581 select SIBYTE_BCM1120 582 select SWAP_IO_SPACE 583 select SYS_HAS_CPU_SB1 584 select SYS_SUPPORTS_BIG_ENDIAN 585 select SYS_SUPPORTS_LITTLE_ENDIAN 586 587config SIBYTE_CRHONE 588 bool "Sibyte BCM91125C-CRhone" 589 select BOOT_ELF32 590 select DMA_COHERENT 591 select SIBYTE_BCM1125 592 select SWAP_IO_SPACE 593 select SYS_HAS_CPU_SB1 594 select SYS_SUPPORTS_BIG_ENDIAN 595 select SYS_SUPPORTS_HIGHMEM 596 select SYS_SUPPORTS_LITTLE_ENDIAN 597 598config SIBYTE_RHONE 599 bool "Sibyte BCM91125E-Rhone" 600 select BOOT_ELF32 601 select DMA_COHERENT 602 select SIBYTE_BCM1125H 603 select SWAP_IO_SPACE 604 select SYS_HAS_CPU_SB1 605 select SYS_SUPPORTS_BIG_ENDIAN 606 select SYS_SUPPORTS_LITTLE_ENDIAN 607 608config SIBYTE_SWARM 609 bool "Sibyte BCM91250A-SWARM" 610 select BOOT_ELF32 611 select DMA_COHERENT 612 select HAVE_PATA_PLATFORM 613 select SIBYTE_SB1250 614 select SWAP_IO_SPACE 615 select SYS_HAS_CPU_SB1 616 select SYS_SUPPORTS_BIG_ENDIAN 617 select SYS_SUPPORTS_HIGHMEM 618 select SYS_SUPPORTS_LITTLE_ENDIAN 619 select ZONE_DMA32 if 64BIT 620 621config SIBYTE_LITTLESUR 622 bool "Sibyte BCM91250C2-LittleSur" 623 select BOOT_ELF32 624 select DMA_COHERENT 625 select HAVE_PATA_PLATFORM 626 select SIBYTE_SB1250 627 select SWAP_IO_SPACE 628 select SYS_HAS_CPU_SB1 629 select SYS_SUPPORTS_BIG_ENDIAN 630 select SYS_SUPPORTS_HIGHMEM 631 select SYS_SUPPORTS_LITTLE_ENDIAN 632 633config SIBYTE_SENTOSA 634 bool "Sibyte BCM91250E-Sentosa" 635 select BOOT_ELF32 636 select DMA_COHERENT 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 CAVIUM_OCTEON_SOC 716 bool "Cavium Networks Octeon SoC based boards" 717 select CEVT_R4K 718 select 64BIT_PHYS_ADDR 719 select DMA_COHERENT 720 select SYS_SUPPORTS_64BIT_KERNEL 721 select SYS_SUPPORTS_BIG_ENDIAN 722 select EDAC_SUPPORT 723 select SYS_SUPPORTS_HOTPLUG_CPU 724 select SYS_HAS_EARLY_PRINTK 725 select SYS_HAS_CPU_CAVIUM_OCTEON 726 select SWAP_IO_SPACE 727 select HW_HAS_PCI 728 select ZONE_DMA32 729 select USB_ARCH_HAS_OHCI 730 select USB_ARCH_HAS_EHCI 731 select HOLES_IN_ZONE 732 select ARCH_REQUIRE_GPIOLIB 733 help 734 This option supports all of the Octeon reference boards from Cavium 735 Networks. It builds a kernel that dynamically determines the Octeon 736 CPU type and supports all known board reference implementations. 737 Some of the supported boards are: 738 EBT3000 739 EBH3000 740 EBH3100 741 Thunder 742 Kodama 743 Hikari 744 Say Y here for most Octeon reference boards. 745 746config NLM_XLR_BOARD 747 bool "Netlogic XLR/XLS based systems" 748 select BOOT_ELF32 749 select NLM_COMMON 750 select SYS_HAS_CPU_XLR 751 select SYS_SUPPORTS_SMP 752 select HW_HAS_PCI 753 select SWAP_IO_SPACE 754 select SYS_SUPPORTS_32BIT_KERNEL 755 select SYS_SUPPORTS_64BIT_KERNEL 756 select 64BIT_PHYS_ADDR 757 select SYS_SUPPORTS_BIG_ENDIAN 758 select SYS_SUPPORTS_HIGHMEM 759 select DMA_COHERENT 760 select NR_CPUS_DEFAULT_32 761 select CEVT_R4K 762 select CSRC_R4K 763 select IRQ_CPU 764 select ZONE_DMA32 if 64BIT 765 select SYNC_R4K 766 select SYS_HAS_EARLY_PRINTK 767 select USB_ARCH_HAS_OHCI if USB_SUPPORT 768 select USB_ARCH_HAS_EHCI if USB_SUPPORT 769 select SYS_SUPPORTS_ZBOOT 770 select SYS_SUPPORTS_ZBOOT_UART16550 771 help 772 Support for systems based on Netlogic XLR and XLS processors. 773 Say Y here if you have a XLR or XLS based board. 774 775config NLM_XLP_BOARD 776 bool "Netlogic XLP based systems" 777 select BOOT_ELF32 778 select NLM_COMMON 779 select SYS_HAS_CPU_XLP 780 select SYS_SUPPORTS_SMP 781 select HW_HAS_PCI 782 select SYS_SUPPORTS_32BIT_KERNEL 783 select SYS_SUPPORTS_64BIT_KERNEL 784 select 64BIT_PHYS_ADDR 785 select SYS_SUPPORTS_BIG_ENDIAN 786 select SYS_SUPPORTS_LITTLE_ENDIAN 787 select SYS_SUPPORTS_HIGHMEM 788 select DMA_COHERENT 789 select NR_CPUS_DEFAULT_32 790 select CEVT_R4K 791 select CSRC_R4K 792 select IRQ_CPU 793 select ZONE_DMA32 if 64BIT 794 select SYNC_R4K 795 select SYS_HAS_EARLY_PRINTK 796 select USE_OF 797 select SYS_SUPPORTS_ZBOOT 798 select SYS_SUPPORTS_ZBOOT_UART16550 799 help 800 This board is based on Netlogic XLP Processor. 801 Say Y here if you have a XLP based board. 802 803endchoice 804 805source "arch/mips/alchemy/Kconfig" 806source "arch/mips/ath79/Kconfig" 807source "arch/mips/bcm47xx/Kconfig" 808source "arch/mips/bcm63xx/Kconfig" 809source "arch/mips/jazz/Kconfig" 810source "arch/mips/jz4740/Kconfig" 811source "arch/mips/lantiq/Kconfig" 812source "arch/mips/lasat/Kconfig" 813source "arch/mips/pmcs-msp71xx/Kconfig" 814source "arch/mips/powertv/Kconfig" 815source "arch/mips/ralink/Kconfig" 816source "arch/mips/sgi-ip27/Kconfig" 817source "arch/mips/sibyte/Kconfig" 818source "arch/mips/txx9/Kconfig" 819source "arch/mips/vr41xx/Kconfig" 820source "arch/mips/cavium-octeon/Kconfig" 821source "arch/mips/loongson/Kconfig" 822source "arch/mips/loongson1/Kconfig" 823source "arch/mips/netlogic/Kconfig" 824 825endmenu 826 827config RWSEM_GENERIC_SPINLOCK 828 bool 829 default y 830 831config RWSEM_XCHGADD_ALGORITHM 832 bool 833 834config ARCH_HAS_ILOG2_U32 835 bool 836 default n 837 838config ARCH_HAS_ILOG2_U64 839 bool 840 default n 841 842config GENERIC_HWEIGHT 843 bool 844 default y 845 846config GENERIC_CALIBRATE_DELAY 847 bool 848 default y 849 850config SCHED_OMIT_FRAME_POINTER 851 bool 852 default y 853 854# 855# Select some configuration options automatically based on user selections. 856# 857config FW_ARC 858 bool 859 860config ARCH_MAY_HAVE_PC_FDC 861 bool 862 863config BOOT_RAW 864 bool 865 866config CEVT_BCM1480 867 bool 868 869config CEVT_DS1287 870 bool 871 872config CEVT_GT641XX 873 bool 874 875config CEVT_R4K 876 bool 877 878config CEVT_GIC 879 bool 880 881config CEVT_SB1250 882 bool 883 884config CEVT_TXX9 885 bool 886 887config CSRC_BCM1480 888 bool 889 890config CSRC_IOASIC 891 bool 892 893config CSRC_POWERTV 894 bool 895 896config CSRC_R4K 897 bool 898 899config CSRC_GIC 900 bool 901 902config CSRC_SB1250 903 bool 904 905config GPIO_TXX9 906 select ARCH_REQUIRE_GPIOLIB 907 bool 908 909config FW_CFE 910 bool 911 912config ARCH_DMA_ADDR_T_64BIT 913 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT 914 915config DMA_COHERENT 916 bool 917 918config DMA_NONCOHERENT 919 bool 920 select NEED_DMA_MAP_STATE 921 922config NEED_DMA_MAP_STATE 923 bool 924 925config SYS_HAS_EARLY_PRINTK 926 bool 927 928config HOTPLUG_CPU 929 bool "Support for hot-pluggable CPUs" 930 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 931 help 932 Say Y here to allow turning CPUs off and on. CPUs can be 933 controlled through /sys/devices/system/cpu. 934 (Note: power management support will enable this option 935 automatically on SMP systems. ) 936 Say N if you want to disable CPU hotplug. 937 938config SYS_SUPPORTS_HOTPLUG_CPU 939 bool 940 941config I8259 942 bool 943 944config MIPS_BONITO64 945 bool 946 947config MIPS_MSC 948 bool 949 950config MIPS_NILE4 951 bool 952 953config SYNC_R4K 954 bool 955 956config MIPS_MACHINE 957 def_bool n 958 959config NO_IOPORT 960 def_bool n 961 962config GENERIC_ISA_DMA 963 bool 964 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 965 select ISA_DMA_API 966 967config GENERIC_ISA_DMA_SUPPORT_BROKEN 968 bool 969 select GENERIC_ISA_DMA 970 971config ISA_DMA_API 972 bool 973 974config HOLES_IN_ZONE 975 bool 976 977# 978# Endianness selection. Sufficiently obscure so many users don't know what to 979# answer,so we try hard to limit the available choices. Also the use of a 980# choice statement should be more obvious to the user. 981# 982choice 983 prompt "Endianness selection" 984 help 985 Some MIPS machines can be configured for either little or big endian 986 byte order. These modes require different kernels and a different 987 Linux distribution. In general there is one preferred byteorder for a 988 particular system but some systems are just as commonly used in the 989 one or the other endianness. 990 991config CPU_BIG_ENDIAN 992 bool "Big endian" 993 depends on SYS_SUPPORTS_BIG_ENDIAN 994 995config CPU_LITTLE_ENDIAN 996 bool "Little endian" 997 depends on SYS_SUPPORTS_LITTLE_ENDIAN 998 999endchoice 1000 1001config EXPORT_UASM 1002 bool 1003 1004config SYS_SUPPORTS_APM_EMULATION 1005 bool 1006 1007config SYS_SUPPORTS_BIG_ENDIAN 1008 bool 1009 1010config SYS_SUPPORTS_LITTLE_ENDIAN 1011 bool 1012 1013config SYS_SUPPORTS_HUGETLBFS 1014 bool 1015 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT 1016 default y 1017 1018config MIPS_HUGE_TLB_SUPPORT 1019 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1020 1021config IRQ_CPU 1022 bool 1023 1024config IRQ_CPU_RM7K 1025 bool 1026 1027config IRQ_MSP_SLP 1028 bool 1029 1030config IRQ_MSP_CIC 1031 bool 1032 1033config IRQ_TXX9 1034 bool 1035 1036config IRQ_GT641XX 1037 bool 1038 1039config IRQ_GIC 1040 bool 1041 1042config PCI_GT64XXX_PCI0 1043 bool 1044 1045config NO_EXCEPT_FILL 1046 bool 1047 1048config SOC_EMMA2RH 1049 bool 1050 select CEVT_R4K 1051 select CSRC_R4K 1052 select DMA_NONCOHERENT 1053 select IRQ_CPU 1054 select SWAP_IO_SPACE 1055 select SYS_HAS_CPU_R5500 1056 select SYS_SUPPORTS_32BIT_KERNEL 1057 select SYS_SUPPORTS_64BIT_KERNEL 1058 select SYS_SUPPORTS_BIG_ENDIAN 1059 1060config SOC_PNX833X 1061 bool 1062 select CEVT_R4K 1063 select CSRC_R4K 1064 select IRQ_CPU 1065 select DMA_NONCOHERENT 1066 select SYS_HAS_CPU_MIPS32_R2 1067 select SYS_SUPPORTS_32BIT_KERNEL 1068 select SYS_SUPPORTS_LITTLE_ENDIAN 1069 select SYS_SUPPORTS_BIG_ENDIAN 1070 select CPU_MIPSR2_IRQ_VI 1071 1072config SOC_PNX8335 1073 bool 1074 select SOC_PNX833X 1075 1076config SWAP_IO_SPACE 1077 bool 1078 1079config SGI_HAS_INDYDOG 1080 bool 1081 1082config SGI_HAS_HAL2 1083 bool 1084 1085config SGI_HAS_SEEQ 1086 bool 1087 1088config SGI_HAS_WD93 1089 bool 1090 1091config SGI_HAS_ZILOG 1092 bool 1093 1094config SGI_HAS_I8042 1095 bool 1096 1097config DEFAULT_SGI_PARTITION 1098 bool 1099 1100config FW_ARC32 1101 bool 1102 1103config FW_SNIPROM 1104 bool 1105 1106config BOOT_ELF32 1107 bool 1108 1109config MIPS_L1_CACHE_SHIFT 1110 int 1111 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL || SOC_RT288X 1112 default "6" if MIPS_CPU_SCACHE 1113 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON 1114 default "5" 1115 1116config HAVE_STD_PC_SERIAL_PORT 1117 bool 1118 1119config ARC_CONSOLE 1120 bool "ARC console support" 1121 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1122 1123config ARC_MEMORY 1124 bool 1125 depends on MACH_JAZZ || SNI_RM || SGI_IP32 1126 default y 1127 1128config ARC_PROMLIB 1129 bool 1130 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 1131 default y 1132 1133config FW_ARC64 1134 bool 1135 1136config BOOT_ELF64 1137 bool 1138 1139menu "CPU selection" 1140 1141choice 1142 prompt "CPU type" 1143 default CPU_R4X00 1144 1145config CPU_LOONGSON2E 1146 bool "Loongson 2E" 1147 depends on SYS_HAS_CPU_LOONGSON2E 1148 select CPU_LOONGSON2 1149 help 1150 The Loongson 2E processor implements the MIPS III instruction set 1151 with many extensions. 1152 1153 It has an internal FPGA northbridge, which is compatible to 1154 bonito64. 1155 1156config CPU_LOONGSON2F 1157 bool "Loongson 2F" 1158 depends on SYS_HAS_CPU_LOONGSON2F 1159 select CPU_LOONGSON2 1160 select ARCH_REQUIRE_GPIOLIB 1161 help 1162 The Loongson 2F processor implements the MIPS III instruction set 1163 with many extensions. 1164 1165 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1166 have a similar programming interface with FPGA northbridge used in 1167 Loongson2E. 1168 1169config CPU_LOONGSON1B 1170 bool "Loongson 1B" 1171 depends on SYS_HAS_CPU_LOONGSON1B 1172 select CPU_LOONGSON1 1173 help 1174 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1175 release 2 instruction set. 1176 1177config CPU_MIPS32_R1 1178 bool "MIPS32 Release 1" 1179 depends on SYS_HAS_CPU_MIPS32_R1 1180 select CPU_HAS_PREFETCH 1181 select CPU_SUPPORTS_32BIT_KERNEL 1182 select CPU_SUPPORTS_HIGHMEM 1183 help 1184 Choose this option to build a kernel for release 1 or later of the 1185 MIPS32 architecture. Most modern embedded systems with a 32-bit 1186 MIPS processor are based on a MIPS32 processor. If you know the 1187 specific type of processor in your system, choose those that one 1188 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1189 Release 2 of the MIPS32 architecture is available since several 1190 years so chances are you even have a MIPS32 Release 2 processor 1191 in which case you should choose CPU_MIPS32_R2 instead for better 1192 performance. 1193 1194config CPU_MIPS32_R2 1195 bool "MIPS32 Release 2" 1196 depends on SYS_HAS_CPU_MIPS32_R2 1197 select CPU_HAS_PREFETCH 1198 select CPU_SUPPORTS_32BIT_KERNEL 1199 select CPU_SUPPORTS_HIGHMEM 1200 select HAVE_KVM 1201 help 1202 Choose this option to build a kernel for release 2 or later of the 1203 MIPS32 architecture. Most modern embedded systems with a 32-bit 1204 MIPS processor are based on a MIPS32 processor. If you know the 1205 specific type of processor in your system, choose those that one 1206 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1207 1208config CPU_MIPS64_R1 1209 bool "MIPS64 Release 1" 1210 depends on SYS_HAS_CPU_MIPS64_R1 1211 select CPU_HAS_PREFETCH 1212 select CPU_SUPPORTS_32BIT_KERNEL 1213 select CPU_SUPPORTS_64BIT_KERNEL 1214 select CPU_SUPPORTS_HIGHMEM 1215 select CPU_SUPPORTS_HUGEPAGES 1216 help 1217 Choose this option to build a kernel for release 1 or later of the 1218 MIPS64 architecture. Many modern embedded systems with a 64-bit 1219 MIPS processor are based on a MIPS64 processor. If you know the 1220 specific type of processor in your system, choose those that one 1221 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1222 Release 2 of the MIPS64 architecture is available since several 1223 years so chances are you even have a MIPS64 Release 2 processor 1224 in which case you should choose CPU_MIPS64_R2 instead for better 1225 performance. 1226 1227config CPU_MIPS64_R2 1228 bool "MIPS64 Release 2" 1229 depends on SYS_HAS_CPU_MIPS64_R2 1230 select CPU_HAS_PREFETCH 1231 select CPU_SUPPORTS_32BIT_KERNEL 1232 select CPU_SUPPORTS_64BIT_KERNEL 1233 select CPU_SUPPORTS_HIGHMEM 1234 select CPU_SUPPORTS_HUGEPAGES 1235 help 1236 Choose this option to build a kernel for release 2 or later of the 1237 MIPS64 architecture. Many modern embedded systems with a 64-bit 1238 MIPS processor are based on a MIPS64 processor. If you know the 1239 specific type of processor in your system, choose those that one 1240 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1241 1242config CPU_R3000 1243 bool "R3000" 1244 depends on SYS_HAS_CPU_R3000 1245 select CPU_HAS_WB 1246 select CPU_SUPPORTS_32BIT_KERNEL 1247 select CPU_SUPPORTS_HIGHMEM 1248 help 1249 Please make sure to pick the right CPU type. Linux/MIPS is not 1250 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1251 *not* work on R4000 machines and vice versa. However, since most 1252 of the supported machines have an R4000 (or similar) CPU, R4x00 1253 might be a safe bet. If the resulting kernel does not work, 1254 try to recompile with R3000. 1255 1256config CPU_TX39XX 1257 bool "R39XX" 1258 depends on SYS_HAS_CPU_TX39XX 1259 select CPU_SUPPORTS_32BIT_KERNEL 1260 1261config CPU_VR41XX 1262 bool "R41xx" 1263 depends on SYS_HAS_CPU_VR41XX 1264 select CPU_SUPPORTS_32BIT_KERNEL 1265 select CPU_SUPPORTS_64BIT_KERNEL 1266 help 1267 The options selects support for the NEC VR4100 series of processors. 1268 Only choose this option if you have one of these processors as a 1269 kernel built with this option will not run on any other type of 1270 processor or vice versa. 1271 1272config CPU_R4300 1273 bool "R4300" 1274 depends on SYS_HAS_CPU_R4300 1275 select CPU_SUPPORTS_32BIT_KERNEL 1276 select CPU_SUPPORTS_64BIT_KERNEL 1277 help 1278 MIPS Technologies R4300-series processors. 1279 1280config CPU_R4X00 1281 bool "R4x00" 1282 depends on SYS_HAS_CPU_R4X00 1283 select CPU_SUPPORTS_32BIT_KERNEL 1284 select CPU_SUPPORTS_64BIT_KERNEL 1285 select CPU_SUPPORTS_HUGEPAGES 1286 help 1287 MIPS Technologies R4000-series processors other than 4300, including 1288 the R4000, R4400, R4600, and 4700. 1289 1290config CPU_TX49XX 1291 bool "R49XX" 1292 depends on SYS_HAS_CPU_TX49XX 1293 select CPU_HAS_PREFETCH 1294 select CPU_SUPPORTS_32BIT_KERNEL 1295 select CPU_SUPPORTS_64BIT_KERNEL 1296 select CPU_SUPPORTS_HUGEPAGES 1297 1298config CPU_R5000 1299 bool "R5000" 1300 depends on SYS_HAS_CPU_R5000 1301 select CPU_SUPPORTS_32BIT_KERNEL 1302 select CPU_SUPPORTS_64BIT_KERNEL 1303 select CPU_SUPPORTS_HUGEPAGES 1304 help 1305 MIPS Technologies R5000-series processors other than the Nevada. 1306 1307config CPU_R5432 1308 bool "R5432" 1309 depends on SYS_HAS_CPU_R5432 1310 select CPU_SUPPORTS_32BIT_KERNEL 1311 select CPU_SUPPORTS_64BIT_KERNEL 1312 select CPU_SUPPORTS_HUGEPAGES 1313 1314config CPU_R5500 1315 bool "R5500" 1316 depends on SYS_HAS_CPU_R5500 1317 select CPU_SUPPORTS_32BIT_KERNEL 1318 select CPU_SUPPORTS_64BIT_KERNEL 1319 select CPU_SUPPORTS_HUGEPAGES 1320 help 1321 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1322 instruction set. 1323 1324config CPU_R6000 1325 bool "R6000" 1326 depends on SYS_HAS_CPU_R6000 1327 select CPU_SUPPORTS_32BIT_KERNEL 1328 help 1329 MIPS Technologies R6000 and R6000A series processors. Note these 1330 processors are extremely rare and the support for them is incomplete. 1331 1332config CPU_NEVADA 1333 bool "RM52xx" 1334 depends on SYS_HAS_CPU_NEVADA 1335 select CPU_SUPPORTS_32BIT_KERNEL 1336 select CPU_SUPPORTS_64BIT_KERNEL 1337 select CPU_SUPPORTS_HUGEPAGES 1338 help 1339 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1340 1341config CPU_R8000 1342 bool "R8000" 1343 depends on SYS_HAS_CPU_R8000 1344 select CPU_HAS_PREFETCH 1345 select CPU_SUPPORTS_64BIT_KERNEL 1346 help 1347 MIPS Technologies R8000 processors. Note these processors are 1348 uncommon and the support for them is incomplete. 1349 1350config CPU_R10000 1351 bool "R10000" 1352 depends on SYS_HAS_CPU_R10000 1353 select CPU_HAS_PREFETCH 1354 select CPU_SUPPORTS_32BIT_KERNEL 1355 select CPU_SUPPORTS_64BIT_KERNEL 1356 select CPU_SUPPORTS_HIGHMEM 1357 select CPU_SUPPORTS_HUGEPAGES 1358 help 1359 MIPS Technologies R10000-series processors. 1360 1361config CPU_RM7000 1362 bool "RM7000" 1363 depends on SYS_HAS_CPU_RM7000 1364 select CPU_HAS_PREFETCH 1365 select CPU_SUPPORTS_32BIT_KERNEL 1366 select CPU_SUPPORTS_64BIT_KERNEL 1367 select CPU_SUPPORTS_HIGHMEM 1368 select CPU_SUPPORTS_HUGEPAGES 1369 1370config CPU_SB1 1371 bool "SB1" 1372 depends on SYS_HAS_CPU_SB1 1373 select CPU_SUPPORTS_32BIT_KERNEL 1374 select CPU_SUPPORTS_64BIT_KERNEL 1375 select CPU_SUPPORTS_HIGHMEM 1376 select CPU_SUPPORTS_HUGEPAGES 1377 select WEAK_ORDERING 1378 1379config CPU_CAVIUM_OCTEON 1380 bool "Cavium Octeon processor" 1381 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1382 select ARCH_SPARSEMEM_ENABLE 1383 select CPU_HAS_PREFETCH 1384 select CPU_SUPPORTS_64BIT_KERNEL 1385 select SYS_SUPPORTS_SMP 1386 select NR_CPUS_DEFAULT_16 1387 select WEAK_ORDERING 1388 select CPU_SUPPORTS_HIGHMEM 1389 select CPU_SUPPORTS_HUGEPAGES 1390 select LIBFDT 1391 select USE_OF 1392 select USB_EHCI_BIG_ENDIAN_MMIO 1393 help 1394 The Cavium Octeon processor is a highly integrated chip containing 1395 many ethernet hardware widgets for networking tasks. The processor 1396 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1397 Full details can be found at http://www.caviumnetworks.com. 1398 1399config CPU_BMIPS3300 1400 bool "BMIPS3300" 1401 depends on SYS_HAS_CPU_BMIPS3300 1402 select CPU_BMIPS 1403 help 1404 Broadcom BMIPS3300 processors. 1405 1406config CPU_BMIPS4350 1407 bool "BMIPS4350" 1408 depends on SYS_HAS_CPU_BMIPS4350 1409 select CPU_BMIPS 1410 select SYS_SUPPORTS_SMP 1411 select SYS_SUPPORTS_HOTPLUG_CPU 1412 help 1413 Broadcom BMIPS4350 ("VIPER") processors. 1414 1415config CPU_BMIPS4380 1416 bool "BMIPS4380" 1417 depends on SYS_HAS_CPU_BMIPS4380 1418 select CPU_BMIPS 1419 select SYS_SUPPORTS_SMP 1420 select SYS_SUPPORTS_HOTPLUG_CPU 1421 help 1422 Broadcom BMIPS4380 processors. 1423 1424config CPU_BMIPS5000 1425 bool "BMIPS5000" 1426 depends on SYS_HAS_CPU_BMIPS5000 1427 select CPU_BMIPS 1428 select CPU_SUPPORTS_HIGHMEM 1429 select MIPS_CPU_SCACHE 1430 select SYS_SUPPORTS_SMP 1431 select SYS_SUPPORTS_HOTPLUG_CPU 1432 help 1433 Broadcom BMIPS5000 processors. 1434 1435config CPU_XLR 1436 bool "Netlogic XLR SoC" 1437 depends on SYS_HAS_CPU_XLR 1438 select CPU_SUPPORTS_32BIT_KERNEL 1439 select CPU_SUPPORTS_64BIT_KERNEL 1440 select CPU_SUPPORTS_HIGHMEM 1441 select CPU_SUPPORTS_HUGEPAGES 1442 select WEAK_ORDERING 1443 select WEAK_REORDERING_BEYOND_LLSC 1444 help 1445 Netlogic Microsystems XLR/XLS processors. 1446 1447config CPU_XLP 1448 bool "Netlogic XLP SoC" 1449 depends on SYS_HAS_CPU_XLP 1450 select CPU_SUPPORTS_32BIT_KERNEL 1451 select CPU_SUPPORTS_64BIT_KERNEL 1452 select CPU_SUPPORTS_HIGHMEM 1453 select WEAK_ORDERING 1454 select WEAK_REORDERING_BEYOND_LLSC 1455 select CPU_HAS_PREFETCH 1456 select CPU_MIPSR2 1457 help 1458 Netlogic Microsystems XLP processors. 1459endchoice 1460 1461if CPU_LOONGSON2F 1462config CPU_NOP_WORKAROUNDS 1463 bool 1464 1465config CPU_JUMP_WORKAROUNDS 1466 bool 1467 1468config CPU_LOONGSON2F_WORKAROUNDS 1469 bool "Loongson 2F Workarounds" 1470 default y 1471 select CPU_NOP_WORKAROUNDS 1472 select CPU_JUMP_WORKAROUNDS 1473 help 1474 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1475 require workarounds. Without workarounds the system may hang 1476 unexpectedly. For more information please refer to the gas 1477 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1478 1479 Loongson 2F03 and later have fixed these issues and no workarounds 1480 are needed. The workarounds have no significant side effect on them 1481 but may decrease the performance of the system so this option should 1482 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1483 systems. 1484 1485 If unsure, please say Y. 1486endif # CPU_LOONGSON2F 1487 1488config SYS_SUPPORTS_ZBOOT 1489 bool 1490 select HAVE_KERNEL_GZIP 1491 select HAVE_KERNEL_BZIP2 1492 select HAVE_KERNEL_LZMA 1493 select HAVE_KERNEL_LZO 1494 1495config SYS_SUPPORTS_ZBOOT_UART16550 1496 bool 1497 select SYS_SUPPORTS_ZBOOT 1498 1499config CPU_LOONGSON2 1500 bool 1501 select CPU_SUPPORTS_32BIT_KERNEL 1502 select CPU_SUPPORTS_64BIT_KERNEL 1503 select CPU_SUPPORTS_HIGHMEM 1504 select CPU_SUPPORTS_HUGEPAGES 1505 1506config CPU_LOONGSON1 1507 bool 1508 select CPU_MIPS32 1509 select CPU_MIPSR2 1510 select CPU_HAS_PREFETCH 1511 select CPU_SUPPORTS_32BIT_KERNEL 1512 select CPU_SUPPORTS_HIGHMEM 1513 1514config CPU_BMIPS 1515 bool 1516 select CPU_MIPS32 1517 select CPU_SUPPORTS_32BIT_KERNEL 1518 select DMA_NONCOHERENT 1519 select IRQ_CPU 1520 select SWAP_IO_SPACE 1521 select WEAK_ORDERING 1522 1523config SYS_HAS_CPU_LOONGSON2E 1524 bool 1525 1526config SYS_HAS_CPU_LOONGSON2F 1527 bool 1528 select CPU_SUPPORTS_CPUFREQ 1529 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1530 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1531 1532config SYS_HAS_CPU_LOONGSON1B 1533 bool 1534 1535config SYS_HAS_CPU_MIPS32_R1 1536 bool 1537 1538config SYS_HAS_CPU_MIPS32_R2 1539 bool 1540 1541config SYS_HAS_CPU_MIPS64_R1 1542 bool 1543 1544config SYS_HAS_CPU_MIPS64_R2 1545 bool 1546 1547config SYS_HAS_CPU_R3000 1548 bool 1549 1550config SYS_HAS_CPU_TX39XX 1551 bool 1552 1553config SYS_HAS_CPU_VR41XX 1554 bool 1555 1556config SYS_HAS_CPU_R4300 1557 bool 1558 1559config SYS_HAS_CPU_R4X00 1560 bool 1561 1562config SYS_HAS_CPU_TX49XX 1563 bool 1564 1565config SYS_HAS_CPU_R5000 1566 bool 1567 1568config SYS_HAS_CPU_R5432 1569 bool 1570 1571config SYS_HAS_CPU_R5500 1572 bool 1573 1574config SYS_HAS_CPU_R6000 1575 bool 1576 1577config SYS_HAS_CPU_NEVADA 1578 bool 1579 1580config SYS_HAS_CPU_R8000 1581 bool 1582 1583config SYS_HAS_CPU_R10000 1584 bool 1585 1586config SYS_HAS_CPU_RM7000 1587 bool 1588 1589config SYS_HAS_CPU_SB1 1590 bool 1591 1592config SYS_HAS_CPU_CAVIUM_OCTEON 1593 bool 1594 1595config SYS_HAS_CPU_BMIPS3300 1596 bool 1597 1598config SYS_HAS_CPU_BMIPS4350 1599 bool 1600 1601config SYS_HAS_CPU_BMIPS4380 1602 bool 1603 1604config SYS_HAS_CPU_BMIPS5000 1605 bool 1606 1607config SYS_HAS_CPU_XLR 1608 bool 1609 1610config SYS_HAS_CPU_XLP 1611 bool 1612 1613# 1614# CPU may reorder R->R, R->W, W->R, W->W 1615# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 1616# 1617config WEAK_ORDERING 1618 bool 1619 1620# 1621# CPU may reorder reads and writes beyond LL/SC 1622# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 1623# 1624config WEAK_REORDERING_BEYOND_LLSC 1625 bool 1626endmenu 1627 1628# 1629# These two indicate any level of the MIPS32 and MIPS64 architecture 1630# 1631config CPU_MIPS32 1632 bool 1633 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 1634 1635config CPU_MIPS64 1636 bool 1637 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 1638 1639# 1640# These two indicate the revision of the architecture, either Release 1 or Release 2 1641# 1642config CPU_MIPSR1 1643 bool 1644 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 1645 1646config CPU_MIPSR2 1647 bool 1648 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 1649 1650config SYS_SUPPORTS_32BIT_KERNEL 1651 bool 1652config SYS_SUPPORTS_64BIT_KERNEL 1653 bool 1654config CPU_SUPPORTS_32BIT_KERNEL 1655 bool 1656config CPU_SUPPORTS_64BIT_KERNEL 1657 bool 1658config CPU_SUPPORTS_CPUFREQ 1659 bool 1660config CPU_SUPPORTS_ADDRWINCFG 1661 bool 1662config CPU_SUPPORTS_HUGEPAGES 1663 bool 1664config CPU_SUPPORTS_UNCACHED_ACCELERATED 1665 bool 1666config MIPS_PGD_C0_CONTEXT 1667 bool 1668 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP 1669 1670# 1671# Set to y for ptrace access to watch registers. 1672# 1673config HARDWARE_WATCHPOINTS 1674 bool 1675 default y if CPU_MIPSR1 || CPU_MIPSR2 1676 1677menu "Kernel type" 1678 1679choice 1680 prompt "Kernel code model" 1681 help 1682 You should only select this option if you have a workload that 1683 actually benefits from 64-bit processing or if your machine has 1684 large memory. You will only be presented a single option in this 1685 menu if your system does not support both 32-bit and 64-bit kernels. 1686 1687config 32BIT 1688 bool "32-bit kernel" 1689 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 1690 select TRAD_SIGNALS 1691 help 1692 Select this option if you want to build a 32-bit kernel. 1693config 64BIT 1694 bool "64-bit kernel" 1695 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 1696 help 1697 Select this option if you want to build a 64-bit kernel. 1698 1699endchoice 1700 1701config KVM_GUEST 1702 bool "KVM Guest Kernel" 1703 depends on BROKEN_ON_SMP 1704 help 1705 Select this option if building a guest kernel for KVM (Trap & Emulate) mode 1706 1707config KVM_HOST_FREQ 1708 int "KVM Host Processor Frequency (MHz)" 1709 depends on KVM_GUEST 1710 default 500 1711 help 1712 Select this option if building a guest kernel for KVM to skip 1713 RTC emulation when determining guest CPU Frequency. Instead, the guest 1714 processor frequency is automatically derived from the host frequency. 1715 1716choice 1717 prompt "Kernel page size" 1718 default PAGE_SIZE_4KB 1719 1720config PAGE_SIZE_4KB 1721 bool "4kB" 1722 depends on !CPU_LOONGSON2 1723 help 1724 This option select the standard 4kB Linux page size. On some 1725 R3000-family processors this is the only available page size. Using 1726 4kB page size will minimize memory consumption and is therefore 1727 recommended for low memory systems. 1728 1729config PAGE_SIZE_8KB 1730 bool "8kB" 1731 depends on CPU_R8000 || CPU_CAVIUM_OCTEON 1732 help 1733 Using 8kB page size will result in higher performance kernel at 1734 the price of higher memory consumption. This option is available 1735 only on R8000 and cnMIPS processors. Note that you will need a 1736 suitable Linux distribution to support this. 1737 1738config PAGE_SIZE_16KB 1739 bool "16kB" 1740 depends on !CPU_R3000 && !CPU_TX39XX 1741 help 1742 Using 16kB page size will result in higher performance kernel at 1743 the price of higher memory consumption. This option is available on 1744 all non-R3000 family processors. Note that you will need a suitable 1745 Linux distribution to support this. 1746 1747config PAGE_SIZE_32KB 1748 bool "32kB" 1749 depends on CPU_CAVIUM_OCTEON 1750 help 1751 Using 32kB page size will result in higher performance kernel at 1752 the price of higher memory consumption. This option is available 1753 only on cnMIPS cores. Note that you will need a suitable Linux 1754 distribution to support this. 1755 1756config PAGE_SIZE_64KB 1757 bool "64kB" 1758 depends on !CPU_R3000 && !CPU_TX39XX 1759 help 1760 Using 64kB page size will result in higher performance kernel at 1761 the price of higher memory consumption. This option is available on 1762 all non-R3000 family processor. Not that at the time of this 1763 writing this option is still high experimental. 1764 1765endchoice 1766 1767config FORCE_MAX_ZONEORDER 1768 int "Maximum zone order" 1769 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB 1770 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB 1771 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB 1772 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB 1773 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB 1774 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB 1775 range 11 64 1776 default "11" 1777 help 1778 The kernel memory allocator divides physically contiguous memory 1779 blocks into "zones", where each zone is a power of two number of 1780 pages. This option selects the largest power of two that the kernel 1781 keeps in the memory allocator. If you need to allocate very large 1782 blocks of physically contiguous memory, then you may need to 1783 increase this value. 1784 1785 This config option is actually maximum order plus one. For example, 1786 a value of 11 means that the largest free memory block is 2^10 pages. 1787 1788 The page size is not necessarily 4KB. Keep this in mind 1789 when choosing a value for this option. 1790 1791config CEVT_GIC 1792 bool "Use GIC global counter for clock events" 1793 depends on IRQ_GIC && !(MIPS_SEAD3 || MIPS_MT_SMTC) 1794 help 1795 Use the GIC global counter for the clock events. The R4K clock 1796 event driver is always present, so if the platform ends up not 1797 detecting a GIC, it will fall back to the R4K timer for the 1798 generation of clock events. 1799 1800config BOARD_SCACHE 1801 bool 1802 1803config IP22_CPU_SCACHE 1804 bool 1805 select BOARD_SCACHE 1806 1807# 1808# Support for a MIPS32 / MIPS64 style S-caches 1809# 1810config MIPS_CPU_SCACHE 1811 bool 1812 select BOARD_SCACHE 1813 1814config R5000_CPU_SCACHE 1815 bool 1816 select BOARD_SCACHE 1817 1818config RM7000_CPU_SCACHE 1819 bool 1820 select BOARD_SCACHE 1821 1822config SIBYTE_DMA_PAGEOPS 1823 bool "Use DMA to clear/copy pages" 1824 depends on CPU_SB1 1825 help 1826 Instead of using the CPU to zero and copy pages, use a Data Mover 1827 channel. These DMA channels are otherwise unused by the standard 1828 SiByte Linux port. Seems to give a small performance benefit. 1829 1830config CPU_HAS_PREFETCH 1831 bool 1832 1833config CPU_GENERIC_DUMP_TLB 1834 bool 1835 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX) 1836 1837config CPU_R4K_FPU 1838 bool 1839 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 1840 1841config CPU_R4K_CACHE_TLB 1842 bool 1843 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 1844 1845choice 1846 prompt "MIPS MT options" 1847 1848config MIPS_MT_DISABLED 1849 bool "Disable multithreading support." 1850 help 1851 Use this option if your workload can't take advantage of 1852 MIPS hardware multithreading support. On systems that don't have 1853 the option of an MT-enabled processor this option will be the only 1854 option in this menu. 1855 1856config MIPS_MT_SMP 1857 bool "Use 1 TC on each available VPE for SMP" 1858 depends on SYS_SUPPORTS_MULTITHREADING 1859 select CPU_MIPSR2_IRQ_VI 1860 select CPU_MIPSR2_IRQ_EI 1861 select MIPS_MT 1862 select SMP 1863 select SYS_SUPPORTS_SCHED_SMT if SMP 1864 select SYS_SUPPORTS_SMP 1865 select SMP_UP 1866 select MIPS_PERF_SHARED_TC_COUNTERS 1867 help 1868 This is a kernel model which is known a VSMP but lately has been 1869 marketesed into SMVP. 1870 Virtual SMP uses the processor's VPEs to implement virtual 1871 processors. In currently available configuration of the 34K processor 1872 this allows for a dual processor. Both processors will share the same 1873 primary caches; each will obtain the half of the TLB for it's own 1874 exclusive use. For a layman this model can be described as similar to 1875 what Intel calls Hyperthreading. 1876 1877 For further information see http://www.linux-mips.org/wiki/34K#VSMP 1878 1879config MIPS_MT_SMTC 1880 bool "SMTC: Use all TCs on all VPEs for SMP" 1881 depends on CPU_MIPS32_R2 1882 #depends on CPU_MIPS64_R2 # once there is hardware ... 1883 depends on SYS_SUPPORTS_MULTITHREADING 1884 select CPU_MIPSR2_IRQ_VI 1885 select CPU_MIPSR2_IRQ_EI 1886 select MIPS_MT 1887 select NR_CPUS_DEFAULT_8 1888 select SMP 1889 select SYS_SUPPORTS_SMP 1890 select SMP_UP 1891 help 1892 This is a kernel model which is known a SMTC or lately has been 1893 marketesed into SMVP. 1894 is presenting the available TC's of the core as processors to Linux. 1895 On currently available 34K processors this means a Linux system will 1896 see up to 5 processors. The implementation of the SMTC kernel differs 1897 significantly from VSMP and cannot efficiently coexist in the same 1898 kernel binary so the choice between VSMP and SMTC is a compile time 1899 decision. 1900 1901 For further information see http://www.linux-mips.org/wiki/34K#SMTC 1902 1903endchoice 1904 1905config MIPS_MT 1906 bool 1907 1908config SCHED_SMT 1909 bool "SMT (multithreading) scheduler support" 1910 depends on SYS_SUPPORTS_SCHED_SMT 1911 default n 1912 help 1913 SMT scheduler support improves the CPU scheduler's decision making 1914 when dealing with MIPS MT enabled cores at a cost of slightly 1915 increased overhead in some places. If unsure say N here. 1916 1917config SYS_SUPPORTS_SCHED_SMT 1918 bool 1919 1920config SYS_SUPPORTS_MULTITHREADING 1921 bool 1922 1923config MIPS_MT_FPAFF 1924 bool "Dynamic FPU affinity for FP-intensive threads" 1925 default y 1926 depends on MIPS_MT_SMP || MIPS_MT_SMTC 1927 1928config MIPS_VPE_LOADER 1929 bool "VPE loader support." 1930 depends on SYS_SUPPORTS_MULTITHREADING && MODULES 1931 select CPU_MIPSR2_IRQ_VI 1932 select CPU_MIPSR2_IRQ_EI 1933 select MIPS_MT 1934 help 1935 Includes a loader for loading an elf relocatable object 1936 onto another VPE and running it. 1937 1938config MIPS_MT_SMTC_IM_BACKSTOP 1939 bool "Use per-TC register bits as backstop for inhibited IM bits" 1940 depends on MIPS_MT_SMTC 1941 default n 1942 help 1943 To support multiple TC microthreads acting as "CPUs" within 1944 a VPE, VPE-wide interrupt mask bits must be specially manipulated 1945 during interrupt handling. To support legacy drivers and interrupt 1946 controller management code, SMTC has a "backstop" to track and 1947 if necessary restore the interrupt mask. This has some performance 1948 impact on interrupt service overhead. 1949 1950config MIPS_MT_SMTC_IRQAFF 1951 bool "Support IRQ affinity API" 1952 depends on MIPS_MT_SMTC 1953 default n 1954 help 1955 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.) 1956 for SMTC Linux kernel. Requires platform support, of which 1957 an example can be found in the MIPS kernel i8259 and Malta 1958 platform code. Adds some overhead to interrupt dispatch, and 1959 should be used only if you know what you are doing. 1960 1961config MIPS_VPE_LOADER_TOM 1962 bool "Load VPE program into memory hidden from linux" 1963 depends on MIPS_VPE_LOADER 1964 default y 1965 help 1966 The loader can use memory that is present but has been hidden from 1967 Linux using the kernel command line option "mem=xxMB". It's up to 1968 you to ensure the amount you put in the option and the space your 1969 program requires is less or equal to the amount physically present. 1970 1971# this should possibly be in drivers/char, but it is rather cpu related. Hmmm 1972config MIPS_VPE_APSP_API 1973 bool "Enable support for AP/SP API (RTLX)" 1974 depends on MIPS_VPE_LOADER 1975 help 1976 1977config MIPS_CMP 1978 bool "MIPS CMP framework support" 1979 depends on SYS_SUPPORTS_MIPS_CMP 1980 select SYNC_R4K 1981 select SYS_SUPPORTS_SMP 1982 select SYS_SUPPORTS_SCHED_SMT if SMP 1983 select WEAK_ORDERING 1984 default n 1985 help 1986 This is a placeholder option for the GCMP work. It will need to 1987 be handled differently... 1988 1989config SB1_PASS_1_WORKAROUNDS 1990 bool 1991 depends on CPU_SB1_PASS_1 1992 default y 1993 1994config SB1_PASS_2_WORKAROUNDS 1995 bool 1996 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 1997 default y 1998 1999config SB1_PASS_2_1_WORKAROUNDS 2000 bool 2001 depends on CPU_SB1 && CPU_SB1_PASS_2 2002 default y 2003 2004 2005config 64BIT_PHYS_ADDR 2006 bool 2007 2008config ARCH_PHYS_ADDR_T_64BIT 2009 def_bool 64BIT_PHYS_ADDR 2010 2011config CPU_HAS_SMARTMIPS 2012 depends on SYS_SUPPORTS_SMARTMIPS 2013 bool "Support for the SmartMIPS ASE" 2014 help 2015 SmartMIPS is a extension of the MIPS32 architecture aimed at 2016 increased security at both hardware and software level for 2017 smartcards. Enabling this option will allow proper use of the 2018 SmartMIPS instructions by Linux applications. However a kernel with 2019 this option will not work on a MIPS core without SmartMIPS core. If 2020 you don't know you probably don't have SmartMIPS and should say N 2021 here. 2022 2023config CPU_MICROMIPS 2024 depends on SYS_SUPPORTS_MICROMIPS 2025 bool "Build kernel using microMIPS ISA" 2026 help 2027 When this option is enabled the kernel will be built using the 2028 microMIPS ISA 2029 2030config CPU_HAS_WB 2031 bool 2032 2033config XKS01 2034 bool 2035 2036# 2037# Vectored interrupt mode is an R2 feature 2038# 2039config CPU_MIPSR2_IRQ_VI 2040 bool 2041 2042# 2043# Extended interrupt mode is an R2 feature 2044# 2045config CPU_MIPSR2_IRQ_EI 2046 bool 2047 2048config CPU_HAS_SYNC 2049 bool 2050 depends on !CPU_R3000 2051 default y 2052 2053# 2054# CPU non-features 2055# 2056config CPU_DADDI_WORKAROUNDS 2057 bool 2058 2059config CPU_R4000_WORKAROUNDS 2060 bool 2061 select CPU_R4400_WORKAROUNDS 2062 2063config CPU_R4400_WORKAROUNDS 2064 bool 2065 2066# 2067# - Highmem only makes sense for the 32-bit kernel. 2068# - The current highmem code will only work properly on physically indexed 2069# caches such as R3000, SB1, R7000 or those that look like they're virtually 2070# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2071# moment we protect the user and offer the highmem option only on machines 2072# where it's known to be safe. This will not offer highmem on a few systems 2073# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2074# indexed CPUs but we're playing safe. 2075# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2076# know they might have memory configurations that could make use of highmem 2077# support. 2078# 2079config HIGHMEM 2080 bool "High Memory Support" 2081 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM 2082 2083config CPU_SUPPORTS_HIGHMEM 2084 bool 2085 2086config SYS_SUPPORTS_HIGHMEM 2087 bool 2088 2089config SYS_SUPPORTS_SMARTMIPS 2090 bool 2091 2092config SYS_SUPPORTS_MICROMIPS 2093 bool 2094 2095config ARCH_FLATMEM_ENABLE 2096 def_bool y 2097 depends on !NUMA && !CPU_LOONGSON2 2098 2099config ARCH_DISCONTIGMEM_ENABLE 2100 bool 2101 default y if SGI_IP27 2102 help 2103 Say Y to support efficient handling of discontiguous physical memory, 2104 for architectures which are either NUMA (Non-Uniform Memory Access) 2105 or have huge holes in the physical address space for other reasons. 2106 See <file:Documentation/vm/numa> for more. 2107 2108config ARCH_SPARSEMEM_ENABLE 2109 bool 2110 select SPARSEMEM_STATIC 2111 2112config NUMA 2113 bool "NUMA Support" 2114 depends on SYS_SUPPORTS_NUMA 2115 help 2116 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2117 Access). This option improves performance on systems with more 2118 than two nodes; on two node systems it is generally better to 2119 leave it disabled; on single node systems disable this option 2120 disabled. 2121 2122config SYS_SUPPORTS_NUMA 2123 bool 2124 2125config NODES_SHIFT 2126 int 2127 default "6" 2128 depends on NEED_MULTIPLE_NODES 2129 2130config HW_PERF_EVENTS 2131 bool "Enable hardware performance counter support for perf events" 2132 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP) 2133 default y 2134 help 2135 Enable hardware performance counter support for perf events. If 2136 disabled, perf events will use software events only. 2137 2138source "mm/Kconfig" 2139 2140config SMP 2141 bool "Multi-Processing support" 2142 depends on SYS_SUPPORTS_SMP 2143 select USE_GENERIC_SMP_HELPERS 2144 help 2145 This enables support for systems with more than one CPU. If you have 2146 a system with only one CPU, like most personal computers, say N. If 2147 you have a system with more than one CPU, say Y. 2148 2149 If you say N here, the kernel will run on single and multiprocessor 2150 machines, but will use only one CPU of a multiprocessor machine. If 2151 you say Y here, the kernel will run on many, but not all, 2152 singleprocessor machines. On a singleprocessor machine, the kernel 2153 will run faster if you say N here. 2154 2155 People using multiprocessor machines who say Y here should also say 2156 Y to "Enhanced Real Time Clock Support", below. 2157 2158 See also the SMP-HOWTO available at 2159 <http://www.tldp.org/docs.html#howto>. 2160 2161 If you don't know what to do here, say N. 2162 2163config SMP_UP 2164 bool 2165 2166config SYS_SUPPORTS_MIPS_CMP 2167 bool 2168 2169config SYS_SUPPORTS_SMP 2170 bool 2171 2172config NR_CPUS_DEFAULT_4 2173 bool 2174 2175config NR_CPUS_DEFAULT_8 2176 bool 2177 2178config NR_CPUS_DEFAULT_16 2179 bool 2180 2181config NR_CPUS_DEFAULT_32 2182 bool 2183 2184config NR_CPUS_DEFAULT_64 2185 bool 2186 2187config NR_CPUS 2188 int "Maximum number of CPUs (2-64)" 2189 range 2 64 2190 depends on SMP 2191 default "4" if NR_CPUS_DEFAULT_4 2192 default "8" if NR_CPUS_DEFAULT_8 2193 default "16" if NR_CPUS_DEFAULT_16 2194 default "32" if NR_CPUS_DEFAULT_32 2195 default "64" if NR_CPUS_DEFAULT_64 2196 help 2197 This allows you to specify the maximum number of CPUs which this 2198 kernel will support. The maximum supported value is 32 for 32-bit 2199 kernel and 64 for 64-bit kernels; the minimum value which makes 2200 sense is 1 for Qemu (useful only for kernel debugging purposes) 2201 and 2 for all others. 2202 2203 This is purely to save memory - each supported CPU adds 2204 approximately eight kilobytes to the kernel image. For best 2205 performance should round up your number of processors to the next 2206 power of two. 2207 2208config MIPS_PERF_SHARED_TC_COUNTERS 2209 bool 2210 2211# 2212# Timer Interrupt Frequency Configuration 2213# 2214 2215choice 2216 prompt "Timer frequency" 2217 default HZ_250 2218 help 2219 Allows the configuration of the timer frequency. 2220 2221 config HZ_48 2222 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2223 2224 config HZ_100 2225 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2226 2227 config HZ_128 2228 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2229 2230 config HZ_250 2231 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2232 2233 config HZ_256 2234 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2235 2236 config HZ_1000 2237 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2238 2239 config HZ_1024 2240 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2241 2242endchoice 2243 2244config SYS_SUPPORTS_48HZ 2245 bool 2246 2247config SYS_SUPPORTS_100HZ 2248 bool 2249 2250config SYS_SUPPORTS_128HZ 2251 bool 2252 2253config SYS_SUPPORTS_250HZ 2254 bool 2255 2256config SYS_SUPPORTS_256HZ 2257 bool 2258 2259config SYS_SUPPORTS_1000HZ 2260 bool 2261 2262config SYS_SUPPORTS_1024HZ 2263 bool 2264 2265config SYS_SUPPORTS_ARBIT_HZ 2266 bool 2267 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \ 2268 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \ 2269 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \ 2270 !SYS_SUPPORTS_1024HZ 2271 2272config HZ 2273 int 2274 default 48 if HZ_48 2275 default 100 if HZ_100 2276 default 128 if HZ_128 2277 default 250 if HZ_250 2278 default 256 if HZ_256 2279 default 1000 if HZ_1000 2280 default 1024 if HZ_1024 2281 2282source "kernel/Kconfig.preempt" 2283 2284config KEXEC 2285 bool "Kexec system call" 2286 help 2287 kexec is a system call that implements the ability to shutdown your 2288 current kernel, and to start another kernel. It is like a reboot 2289 but it is independent of the system firmware. And like a reboot 2290 you can start any kernel with it, not just Linux. 2291 2292 The name comes from the similarity to the exec system call. 2293 2294 It is an ongoing process to be certain the hardware in a machine 2295 is properly shutdown, so do not be surprised if this code does not 2296 initially work for you. As of this writing the exact hardware 2297 interface is strongly in flux, so no good recommendation can be 2298 made. 2299 2300config CRASH_DUMP 2301 bool "Kernel crash dumps" 2302 help 2303 Generate crash dump after being started by kexec. 2304 This should be normally only set in special crash dump kernels 2305 which are loaded in the main kernel with kexec-tools into 2306 a specially reserved region and then later executed after 2307 a crash by kdump/kexec. The crash dump kernel must be compiled 2308 to a memory address not used by the main kernel or firmware using 2309 PHYSICAL_START. 2310 2311config PHYSICAL_START 2312 hex "Physical address where the kernel is loaded" 2313 default "0xffffffff84000000" if 64BIT 2314 default "0x84000000" if 32BIT 2315 depends on CRASH_DUMP 2316 help 2317 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2318 If you plan to use kernel for capturing the crash dump change 2319 this value to start of the reserved region (the "X" value as 2320 specified in the "crashkernel=YM@XM" command line boot parameter 2321 passed to the panic-ed kernel). 2322 2323config SECCOMP 2324 bool "Enable seccomp to safely compute untrusted bytecode" 2325 depends on PROC_FS 2326 default y 2327 help 2328 This kernel feature is useful for number crunching applications 2329 that may need to compute untrusted bytecode during their 2330 execution. By using pipes or other transports made available to 2331 the process as file descriptors supporting the read/write 2332 syscalls, it's possible to isolate those applications in 2333 their own address space using seccomp. Once seccomp is 2334 enabled via /proc/<pid>/seccomp, it cannot be disabled 2335 and the task is only allowed to execute a few safe syscalls 2336 defined by each seccomp mode. 2337 2338 If unsure, say Y. Only embedded should say N here. 2339 2340config CC_STACKPROTECTOR 2341 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)" 2342 help 2343 This option turns on the -fstack-protector GCC feature. This 2344 feature puts, at the beginning of functions, a canary value on 2345 the stack just before the return address, and validates 2346 the value just before actually returning. Stack based buffer 2347 overflows (that need to overwrite this return address) now also 2348 overwrite the canary, which gets detected and the attack is then 2349 neutralized via a kernel panic. 2350 2351 This feature requires gcc version 4.2 or above. 2352 2353config USE_OF 2354 bool 2355 select OF 2356 select OF_EARLY_FLATTREE 2357 select IRQ_DOMAIN 2358 2359endmenu 2360 2361config LOCKDEP_SUPPORT 2362 bool 2363 default y 2364 2365config STACKTRACE_SUPPORT 2366 bool 2367 default y 2368 2369source "init/Kconfig" 2370 2371source "kernel/Kconfig.freezer" 2372 2373menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 2374 2375config HW_HAS_EISA 2376 bool 2377config HW_HAS_PCI 2378 bool 2379 2380config PCI 2381 bool "Support for PCI controller" 2382 depends on HW_HAS_PCI 2383 select PCI_DOMAINS 2384 select NO_GENERIC_PCI_IOPORT_MAP 2385 help 2386 Find out whether you have a PCI motherboard. PCI is the name of a 2387 bus system, i.e. the way the CPU talks to the other stuff inside 2388 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, 2389 say Y, otherwise N. 2390 2391config PCI_DOMAINS 2392 bool 2393 2394source "drivers/pci/Kconfig" 2395 2396source "drivers/pci/pcie/Kconfig" 2397 2398# 2399# ISA support is now enabled via select. Too many systems still have the one 2400# or other ISA chip on the board that users don't know about so don't expect 2401# users to choose the right thing ... 2402# 2403config ISA 2404 bool 2405 2406config EISA 2407 bool "EISA support" 2408 depends on HW_HAS_EISA 2409 select ISA 2410 select GENERIC_ISA_DMA 2411 ---help--- 2412 The Extended Industry Standard Architecture (EISA) bus was 2413 developed as an open alternative to the IBM MicroChannel bus. 2414 2415 The EISA bus provided some of the features of the IBM MicroChannel 2416 bus while maintaining backward compatibility with cards made for 2417 the older ISA bus. The EISA bus saw limited use between 1988 and 2418 1995 when it was made obsolete by the PCI bus. 2419 2420 Say Y here if you are building a kernel for an EISA-based machine. 2421 2422 Otherwise, say N. 2423 2424source "drivers/eisa/Kconfig" 2425 2426config TC 2427 bool "TURBOchannel support" 2428 depends on MACH_DECSTATION 2429 help 2430 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 2431 processors. TURBOchannel programming specifications are available 2432 at: 2433 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 2434 and: 2435 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 2436 Linux driver support status is documented at: 2437 <http://www.linux-mips.org/wiki/DECstation> 2438 2439config MMU 2440 bool 2441 default y 2442 2443config I8253 2444 bool 2445 select CLKSRC_I8253 2446 select CLKEVT_I8253 2447 select MIPS_EXTERNAL_TIMER 2448 2449config ZONE_DMA 2450 bool 2451 2452config ZONE_DMA32 2453 bool 2454 2455source "drivers/pcmcia/Kconfig" 2456 2457source "drivers/pci/hotplug/Kconfig" 2458 2459config RAPIDIO 2460 bool "RapidIO support" 2461 depends on PCI 2462 default n 2463 help 2464 If you say Y here, the kernel will include drivers and 2465 infrastructure code to support RapidIO interconnect devices. 2466 2467source "drivers/rapidio/Kconfig" 2468 2469endmenu 2470 2471menu "Executable file formats" 2472 2473source "fs/Kconfig.binfmt" 2474 2475config TRAD_SIGNALS 2476 bool 2477 2478config MIPS32_COMPAT 2479 bool "Kernel support for Linux/MIPS 32-bit binary compatibility" 2480 depends on 64BIT 2481 help 2482 Select this option if you want Linux/MIPS 32-bit binary 2483 compatibility. Since all software available for Linux/MIPS is 2484 currently 32-bit you should say Y here. 2485 2486config COMPAT 2487 bool 2488 depends on MIPS32_COMPAT 2489 select ARCH_WANT_OLD_COMPAT_IPC 2490 default y 2491 2492config SYSVIPC_COMPAT 2493 bool 2494 depends on COMPAT && SYSVIPC 2495 default y 2496 2497config MIPS32_O32 2498 bool "Kernel support for o32 binaries" 2499 depends on MIPS32_COMPAT 2500 help 2501 Select this option if you want to run o32 binaries. These are pure 2502 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 2503 existing binaries are in this format. 2504 2505 If unsure, say Y. 2506 2507config MIPS32_N32 2508 bool "Kernel support for n32 binaries" 2509 depends on MIPS32_COMPAT 2510 help 2511 Select this option if you want to run n32 binaries. These are 2512 64-bit binaries using 32-bit quantities for addressing and certain 2513 data that would normally be 64-bit. They are used in special 2514 cases. 2515 2516 If unsure, say N. 2517 2518config BINFMT_ELF32 2519 bool 2520 default y if MIPS32_O32 || MIPS32_N32 2521 2522endmenu 2523 2524menu "Power management options" 2525 2526config ARCH_HIBERNATION_POSSIBLE 2527 def_bool y 2528 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 2529 2530config ARCH_SUSPEND_POSSIBLE 2531 def_bool y 2532 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 2533 2534source "kernel/power/Kconfig" 2535 2536endmenu 2537 2538config MIPS_EXTERNAL_TIMER 2539 bool 2540 2541if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 2542menu "CPU Power Management" 2543source "drivers/cpufreq/Kconfig" 2544endmenu 2545endif 2546 2547source "net/Kconfig" 2548 2549source "drivers/Kconfig" 2550 2551source "drivers/firmware/Kconfig" 2552 2553source "fs/Kconfig" 2554 2555source "arch/mips/Kconfig.debug" 2556 2557source "security/Kconfig" 2558 2559source "crypto/Kconfig" 2560 2561source "lib/Kconfig" 2562 2563source "arch/mips/kvm/Kconfig" 2564