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 HAVE_GENERIC_HARDIRQS 29 select GENERIC_IRQ_PROBE 30 select GENERIC_IRQ_SHOW 31 select GENERIC_PCI_IOMAP 32 select HAVE_ARCH_JUMP_LABEL 33 select ARCH_WANT_IPC_PARSE_VERSION 34 select IRQ_FORCED_THREADING 35 select HAVE_MEMBLOCK 36 select HAVE_MEMBLOCK_NODE_MAP 37 select ARCH_DISCARD_MEMBLOCK 38 select GENERIC_SMP_IDLE_THREAD 39 select BUILDTIME_EXTABLE_SORT 40 select GENERIC_CLOCKEVENTS 41 select GENERIC_CMOS_UPDATE 42 select HAVE_MOD_ARCH_SPECIFIC 43 select VIRT_TO_BUS 44 select MODULES_USE_ELF_REL if MODULES 45 select MODULES_USE_ELF_RELA if MODULES && 64BIT 46 select CLONE_BACKWARDS 47 select HAVE_DEBUG_STACKOVERFLOW 48 49menu "Machine selection" 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 ARCH_REQUIRE_GPIOLIB 65 select SYS_SUPPORTS_ZBOOT 66 select USB_ARCH_HAS_OHCI 67 select USB_ARCH_HAS_EHCI 68 69config AR7 70 bool "Texas Instruments AR7" 71 select BOOT_ELF32 72 select DMA_NONCOHERENT 73 select CEVT_R4K 74 select CSRC_R4K 75 select IRQ_CPU 76 select NO_EXCEPT_FILL 77 select SWAP_IO_SPACE 78 select SYS_HAS_CPU_MIPS32_R1 79 select SYS_HAS_EARLY_PRINTK 80 select SYS_SUPPORTS_32BIT_KERNEL 81 select SYS_SUPPORTS_LITTLE_ENDIAN 82 select SYS_SUPPORTS_ZBOOT_UART16550 83 select ARCH_REQUIRE_GPIOLIB 84 select VLYNQ 85 select HAVE_CLK 86 help 87 Support for the Texas Instruments AR7 System-on-a-Chip 88 family: TNETD7100, 7200 and 7300. 89 90config ATH79 91 bool "Atheros AR71XX/AR724X/AR913X based boards" 92 select ARCH_REQUIRE_GPIOLIB 93 select BOOT_RAW 94 select CEVT_R4K 95 select CSRC_R4K 96 select DMA_NONCOHERENT 97 select HAVE_CLK 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 NO_EXCEPT_FILL 118 select SYS_SUPPORTS_32BIT_KERNEL 119 select SYS_SUPPORTS_LITTLE_ENDIAN 120 select SYS_HAS_EARLY_PRINTK 121 help 122 Support for BCM47XX based boards 123 124config BCM63XX 125 bool "Broadcom BCM63XX based boards" 126 select BOOT_RAW 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_HAS_CPU_BMIPS4350 if !BCM63XX_CPU_6338 && !BCM63XX_CPU_6345 && !BCM63XX_CPU_6348 133 select NR_CPUS_DEFAULT_2 134 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 448config SGI_IP22 449 bool "SGI IP22 (Indy/Indigo2)" 450 select FW_ARC 451 select FW_ARC32 452 select BOOT_ELF32 453 select CEVT_R4K 454 select CSRC_R4K 455 select DEFAULT_SGI_PARTITION 456 select DMA_NONCOHERENT 457 select HW_HAS_EISA 458 select I8253 459 select I8259 460 select IP22_CPU_SCACHE 461 select IRQ_CPU 462 select GENERIC_ISA_DMA_SUPPORT_BROKEN 463 select SGI_HAS_I8042 464 select SGI_HAS_INDYDOG 465 select SGI_HAS_HAL2 466 select SGI_HAS_SEEQ 467 select SGI_HAS_WD93 468 select SGI_HAS_ZILOG 469 select SWAP_IO_SPACE 470 select SYS_HAS_CPU_R4X00 471 select SYS_HAS_CPU_R5000 472 # 473 # Disable EARLY_PRINTK for now since it leads to overwritten prom 474 # memory during early boot on some machines. 475 # 476 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 477 # for a more details discussion 478 # 479 # select SYS_HAS_EARLY_PRINTK 480 select SYS_SUPPORTS_32BIT_KERNEL 481 select SYS_SUPPORTS_64BIT_KERNEL 482 select SYS_SUPPORTS_BIG_ENDIAN 483 help 484 This are the SGI Indy, Challenge S and Indigo2, as well as certain 485 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 486 that runs on these, say Y here. 487 488config SGI_IP27 489 bool "SGI IP27 (Origin200/2000)" 490 select FW_ARC 491 select FW_ARC64 492 select BOOT_ELF64 493 select DEFAULT_SGI_PARTITION 494 select DMA_COHERENT 495 select SYS_HAS_EARLY_PRINTK 496 select HW_HAS_PCI 497 select NR_CPUS_DEFAULT_64 498 select SYS_HAS_CPU_R10000 499 select SYS_SUPPORTS_64BIT_KERNEL 500 select SYS_SUPPORTS_BIG_ENDIAN 501 select SYS_SUPPORTS_NUMA 502 select SYS_SUPPORTS_SMP 503 help 504 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 505 workstations. To compile a Linux kernel that runs on these, say Y 506 here. 507 508config SGI_IP28 509 bool "SGI IP28 (Indigo2 R10k)" 510 select FW_ARC 511 select FW_ARC64 512 select BOOT_ELF64 513 select CEVT_R4K 514 select CSRC_R4K 515 select DEFAULT_SGI_PARTITION 516 select DMA_NONCOHERENT 517 select GENERIC_ISA_DMA_SUPPORT_BROKEN 518 select IRQ_CPU 519 select HW_HAS_EISA 520 select I8253 521 select I8259 522 select SGI_HAS_I8042 523 select SGI_HAS_INDYDOG 524 select SGI_HAS_HAL2 525 select SGI_HAS_SEEQ 526 select SGI_HAS_WD93 527 select SGI_HAS_ZILOG 528 select SWAP_IO_SPACE 529 select SYS_HAS_CPU_R10000 530 # 531 # Disable EARLY_PRINTK for now since it leads to overwritten prom 532 # memory during early boot on some machines. 533 # 534 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 535 # for a more details discussion 536 # 537 # select SYS_HAS_EARLY_PRINTK 538 select SYS_SUPPORTS_64BIT_KERNEL 539 select SYS_SUPPORTS_BIG_ENDIAN 540 help 541 This is the SGI Indigo2 with R10000 processor. To compile a Linux 542 kernel that runs on these, say Y here. 543 544config SGI_IP32 545 bool "SGI IP32 (O2)" 546 select FW_ARC 547 select FW_ARC32 548 select BOOT_ELF32 549 select CEVT_R4K 550 select CSRC_R4K 551 select DMA_NONCOHERENT 552 select HW_HAS_PCI 553 select IRQ_CPU 554 select R5000_CPU_SCACHE 555 select RM7000_CPU_SCACHE 556 select SYS_HAS_CPU_R5000 557 select SYS_HAS_CPU_R10000 if BROKEN 558 select SYS_HAS_CPU_RM7000 559 select SYS_HAS_CPU_NEVADA 560 select SYS_SUPPORTS_64BIT_KERNEL 561 select SYS_SUPPORTS_BIG_ENDIAN 562 help 563 If you want this kernel to run on SGI O2 workstation, say Y here. 564 565config SIBYTE_CRHINE 566 bool "Sibyte BCM91120C-CRhine" 567 select BOOT_ELF32 568 select DMA_COHERENT 569 select SIBYTE_BCM1120 570 select SWAP_IO_SPACE 571 select SYS_HAS_CPU_SB1 572 select SYS_SUPPORTS_BIG_ENDIAN 573 select SYS_SUPPORTS_LITTLE_ENDIAN 574 575config SIBYTE_CARMEL 576 bool "Sibyte BCM91120x-Carmel" 577 select BOOT_ELF32 578 select DMA_COHERENT 579 select SIBYTE_BCM1120 580 select SWAP_IO_SPACE 581 select SYS_HAS_CPU_SB1 582 select SYS_SUPPORTS_BIG_ENDIAN 583 select SYS_SUPPORTS_LITTLE_ENDIAN 584 585config SIBYTE_CRHONE 586 bool "Sibyte BCM91125C-CRhone" 587 select BOOT_ELF32 588 select DMA_COHERENT 589 select SIBYTE_BCM1125 590 select SWAP_IO_SPACE 591 select SYS_HAS_CPU_SB1 592 select SYS_SUPPORTS_BIG_ENDIAN 593 select SYS_SUPPORTS_HIGHMEM 594 select SYS_SUPPORTS_LITTLE_ENDIAN 595 596config SIBYTE_RHONE 597 bool "Sibyte BCM91125E-Rhone" 598 select BOOT_ELF32 599 select DMA_COHERENT 600 select SIBYTE_BCM1125H 601 select SWAP_IO_SPACE 602 select SYS_HAS_CPU_SB1 603 select SYS_SUPPORTS_BIG_ENDIAN 604 select SYS_SUPPORTS_LITTLE_ENDIAN 605 606config SIBYTE_SWARM 607 bool "Sibyte BCM91250A-SWARM" 608 select BOOT_ELF32 609 select DMA_COHERENT 610 select HAVE_PATA_PLATFORM 611 select NR_CPUS_DEFAULT_2 612 select SIBYTE_SB1250 613 select SWAP_IO_SPACE 614 select SYS_HAS_CPU_SB1 615 select SYS_SUPPORTS_BIG_ENDIAN 616 select SYS_SUPPORTS_HIGHMEM 617 select SYS_SUPPORTS_LITTLE_ENDIAN 618 select ZONE_DMA32 if 64BIT 619 620config SIBYTE_LITTLESUR 621 bool "Sibyte BCM91250C2-LittleSur" 622 select BOOT_ELF32 623 select DMA_COHERENT 624 select HAVE_PATA_PLATFORM 625 select NR_CPUS_DEFAULT_2 626 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 NR_CPUS_DEFAULT_2 638 select SIBYTE_SB1250 639 select SWAP_IO_SPACE 640 select SYS_HAS_CPU_SB1 641 select SYS_SUPPORTS_BIG_ENDIAN 642 select SYS_SUPPORTS_LITTLE_ENDIAN 643 644config SIBYTE_BIGSUR 645 bool "Sibyte BCM91480B-BigSur" 646 select BOOT_ELF32 647 select DMA_COHERENT 648 select NR_CPUS_DEFAULT_4 649 select SIBYTE_BCM1x80 650 select SWAP_IO_SPACE 651 select SYS_HAS_CPU_SB1 652 select SYS_SUPPORTS_BIG_ENDIAN 653 select SYS_SUPPORTS_HIGHMEM 654 select SYS_SUPPORTS_LITTLE_ENDIAN 655 select ZONE_DMA32 if 64BIT 656 657config SNI_RM 658 bool "SNI RM200/300/400" 659 select FW_ARC if CPU_LITTLE_ENDIAN 660 select FW_ARC32 if CPU_LITTLE_ENDIAN 661 select FW_SNIPROM if CPU_BIG_ENDIAN 662 select ARCH_MAY_HAVE_PC_FDC 663 select BOOT_ELF32 664 select CEVT_R4K 665 select CSRC_R4K 666 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 667 select DMA_NONCOHERENT 668 select GENERIC_ISA_DMA 669 select HAVE_PCSPKR_PLATFORM 670 select HW_HAS_EISA 671 select HW_HAS_PCI 672 select IRQ_CPU 673 select I8253 674 select I8259 675 select ISA 676 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 677 select SYS_HAS_CPU_R4X00 678 select SYS_HAS_CPU_R5000 679 select SYS_HAS_CPU_R10000 680 select R5000_CPU_SCACHE 681 select SYS_HAS_EARLY_PRINTK 682 select SYS_SUPPORTS_32BIT_KERNEL 683 select SYS_SUPPORTS_64BIT_KERNEL 684 select SYS_SUPPORTS_BIG_ENDIAN 685 select SYS_SUPPORTS_HIGHMEM 686 select SYS_SUPPORTS_LITTLE_ENDIAN 687 help 688 The SNI RM200/300/400 are MIPS-based machines manufactured by 689 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 690 Technology and now in turn merged with Fujitsu. Say Y here to 691 support this machine type. 692 693config MACH_TX39XX 694 bool "Toshiba TX39 series based machines" 695 696config MACH_TX49XX 697 bool "Toshiba TX49 series based machines" 698 699config MIKROTIK_RB532 700 bool "Mikrotik RB532 boards" 701 select CEVT_R4K 702 select CSRC_R4K 703 select DMA_NONCOHERENT 704 select HW_HAS_PCI 705 select IRQ_CPU 706 select SYS_HAS_CPU_MIPS32_R1 707 select SYS_SUPPORTS_32BIT_KERNEL 708 select SYS_SUPPORTS_LITTLE_ENDIAN 709 select SWAP_IO_SPACE 710 select BOOT_RAW 711 select ARCH_REQUIRE_GPIOLIB 712 help 713 Support the Mikrotik(tm) RouterBoard 532 series, 714 based on the IDT RC32434 SoC. 715 716config CAVIUM_OCTEON_SOC 717 bool "Cavium Networks Octeon SoC based boards" 718 select CEVT_R4K 719 select 64BIT_PHYS_ADDR 720 select DMA_COHERENT 721 select SYS_SUPPORTS_64BIT_KERNEL 722 select SYS_SUPPORTS_BIG_ENDIAN 723 select EDAC_SUPPORT 724 select SYS_SUPPORTS_HOTPLUG_CPU 725 select SYS_HAS_EARLY_PRINTK 726 select SYS_HAS_CPU_CAVIUM_OCTEON 727 select SWAP_IO_SPACE 728 select HW_HAS_PCI 729 select ARCH_SUPPORTS_MSI 730 select ZONE_DMA32 731 select USB_ARCH_HAS_OHCI 732 select USB_ARCH_HAS_EHCI 733 select HOLES_IN_ZONE 734 help 735 This option supports all of the Octeon reference boards from Cavium 736 Networks. It builds a kernel that dynamically determines the Octeon 737 CPU type and supports all known board reference implementations. 738 Some of the supported boards are: 739 EBT3000 740 EBH3000 741 EBH3100 742 Thunder 743 Kodama 744 Hikari 745 Say Y here for most Octeon reference boards. 746 747config NLM_XLR_BOARD 748 bool "Netlogic XLR/XLS based systems" 749 select BOOT_ELF32 750 select NLM_COMMON 751 select SYS_HAS_CPU_XLR 752 select SYS_SUPPORTS_SMP 753 select HW_HAS_PCI 754 select SWAP_IO_SPACE 755 select SYS_SUPPORTS_32BIT_KERNEL 756 select SYS_SUPPORTS_64BIT_KERNEL 757 select 64BIT_PHYS_ADDR 758 select SYS_SUPPORTS_BIG_ENDIAN 759 select SYS_SUPPORTS_HIGHMEM 760 select DMA_COHERENT 761 select NR_CPUS_DEFAULT_32 762 select CEVT_R4K 763 select CSRC_R4K 764 select IRQ_CPU 765 select ARCH_SUPPORTS_MSI 766 select ZONE_DMA32 if 64BIT 767 select SYNC_R4K 768 select SYS_HAS_EARLY_PRINTK 769 select USB_ARCH_HAS_OHCI if USB_SUPPORT 770 select USB_ARCH_HAS_EHCI if USB_SUPPORT 771 select SYS_SUPPORTS_ZBOOT 772 select SYS_SUPPORTS_ZBOOT_UART16550 773 help 774 Support for systems based on Netlogic XLR and XLS processors. 775 Say Y here if you have a XLR or XLS based board. 776 777config NLM_XLP_BOARD 778 bool "Netlogic XLP based systems" 779 select BOOT_ELF32 780 select NLM_COMMON 781 select SYS_HAS_CPU_XLP 782 select SYS_SUPPORTS_SMP 783 select HW_HAS_PCI 784 select SYS_SUPPORTS_32BIT_KERNEL 785 select SYS_SUPPORTS_64BIT_KERNEL 786 select 64BIT_PHYS_ADDR 787 select SYS_SUPPORTS_BIG_ENDIAN 788 select SYS_SUPPORTS_LITTLE_ENDIAN 789 select SYS_SUPPORTS_HIGHMEM 790 select DMA_COHERENT 791 select NR_CPUS_DEFAULT_32 792 select CEVT_R4K 793 select CSRC_R4K 794 select IRQ_CPU 795 select ZONE_DMA32 if 64BIT 796 select SYNC_R4K 797 select SYS_HAS_EARLY_PRINTK 798 select USE_OF 799 select SYS_SUPPORTS_ZBOOT 800 select SYS_SUPPORTS_ZBOOT_UART16550 801 help 802 This board is based on Netlogic XLP Processor. 803 Say Y here if you have a XLP based board. 804 805endchoice 806 807source "arch/mips/alchemy/Kconfig" 808source "arch/mips/ath79/Kconfig" 809source "arch/mips/bcm47xx/Kconfig" 810source "arch/mips/bcm63xx/Kconfig" 811source "arch/mips/jazz/Kconfig" 812source "arch/mips/jz4740/Kconfig" 813source "arch/mips/lantiq/Kconfig" 814source "arch/mips/lasat/Kconfig" 815source "arch/mips/pmcs-msp71xx/Kconfig" 816source "arch/mips/powertv/Kconfig" 817source "arch/mips/ralink/Kconfig" 818source "arch/mips/sgi-ip27/Kconfig" 819source "arch/mips/sibyte/Kconfig" 820source "arch/mips/txx9/Kconfig" 821source "arch/mips/vr41xx/Kconfig" 822source "arch/mips/cavium-octeon/Kconfig" 823source "arch/mips/loongson/Kconfig" 824source "arch/mips/loongson1/Kconfig" 825source "arch/mips/netlogic/Kconfig" 826 827endmenu 828 829config RWSEM_GENERIC_SPINLOCK 830 bool 831 default y 832 833config RWSEM_XCHGADD_ALGORITHM 834 bool 835 836config ARCH_HAS_ILOG2_U32 837 bool 838 default n 839 840config ARCH_HAS_ILOG2_U64 841 bool 842 default n 843 844config GENERIC_HWEIGHT 845 bool 846 default y 847 848config GENERIC_CALIBRATE_DELAY 849 bool 850 default y 851 852config SCHED_OMIT_FRAME_POINTER 853 bool 854 default y 855 856# 857# Select some configuration options automatically based on user selections. 858# 859config FW_ARC 860 bool 861 862config ARCH_MAY_HAVE_PC_FDC 863 bool 864 865config BOOT_RAW 866 bool 867 868config CEVT_BCM1480 869 bool 870 871config CEVT_DS1287 872 bool 873 874config CEVT_GT641XX 875 bool 876 877config CEVT_R4K 878 bool 879 880config CEVT_GIC 881 bool 882 883config CEVT_SB1250 884 bool 885 886config CEVT_TXX9 887 bool 888 889config CSRC_BCM1480 890 bool 891 892config CSRC_IOASIC 893 bool 894 895config CSRC_POWERTV 896 bool 897 898config CSRC_R4K 899 bool 900 901config CSRC_GIC 902 bool 903 904config CSRC_SB1250 905 bool 906 907config GPIO_TXX9 908 select ARCH_REQUIRE_GPIOLIB 909 bool 910 911config FW_CFE 912 bool 913 914config ARCH_DMA_ADDR_T_64BIT 915 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT 916 917config DMA_COHERENT 918 bool 919 920config DMA_NONCOHERENT 921 bool 922 select NEED_DMA_MAP_STATE 923 924config NEED_DMA_MAP_STATE 925 bool 926 927config SYS_HAS_EARLY_PRINTK 928 bool 929 930config HOTPLUG_CPU 931 bool "Support for hot-pluggable CPUs" 932 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 933 help 934 Say Y here to allow turning CPUs off and on. CPUs can be 935 controlled through /sys/devices/system/cpu. 936 (Note: power management support will enable this option 937 automatically on SMP systems. ) 938 Say N if you want to disable CPU hotplug. 939 940config SYS_SUPPORTS_HOTPLUG_CPU 941 bool 942 943config I8259 944 bool 945 946config MIPS_BONITO64 947 bool 948 949config MIPS_MSC 950 bool 951 952config MIPS_NILE4 953 bool 954 955config SYNC_R4K 956 bool 957 958config MIPS_MACHINE 959 def_bool n 960 961config NO_IOPORT 962 def_bool n 963 964config GENERIC_ISA_DMA 965 bool 966 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 967 select ISA_DMA_API 968 969config GENERIC_ISA_DMA_SUPPORT_BROKEN 970 bool 971 select GENERIC_ISA_DMA 972 973config ISA_DMA_API 974 bool 975 976config HOLES_IN_ZONE 977 bool 978 979# 980# Endianness selection. Sufficiently obscure so many users don't know what to 981# answer,so we try hard to limit the available choices. Also the use of a 982# choice statement should be more obvious to the user. 983# 984choice 985 prompt "Endianness selection" 986 help 987 Some MIPS machines can be configured for either little or big endian 988 byte order. These modes require different kernels and a different 989 Linux distribution. In general there is one preferred byteorder for a 990 particular system but some systems are just as commonly used in the 991 one or the other endianness. 992 993config CPU_BIG_ENDIAN 994 bool "Big endian" 995 depends on SYS_SUPPORTS_BIG_ENDIAN 996 997config CPU_LITTLE_ENDIAN 998 bool "Little endian" 999 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1000 1001endchoice 1002 1003config EXPORT_UASM 1004 bool 1005 1006config SYS_SUPPORTS_APM_EMULATION 1007 bool 1008 1009config SYS_SUPPORTS_BIG_ENDIAN 1010 bool 1011 1012config SYS_SUPPORTS_LITTLE_ENDIAN 1013 bool 1014 1015config SYS_SUPPORTS_HUGETLBFS 1016 bool 1017 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT 1018 default y 1019 1020config MIPS_HUGE_TLB_SUPPORT 1021 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1022 1023config IRQ_CPU 1024 bool 1025 1026config IRQ_CPU_RM7K 1027 bool 1028 1029config IRQ_MSP_SLP 1030 bool 1031 1032config IRQ_MSP_CIC 1033 bool 1034 1035config IRQ_TXX9 1036 bool 1037 1038config IRQ_GT641XX 1039 bool 1040 1041config IRQ_GIC 1042 bool 1043 1044config PCI_GT64XXX_PCI0 1045 bool 1046 1047config NO_EXCEPT_FILL 1048 bool 1049 1050config SOC_EMMA2RH 1051 bool 1052 select CEVT_R4K 1053 select CSRC_R4K 1054 select DMA_NONCOHERENT 1055 select IRQ_CPU 1056 select SWAP_IO_SPACE 1057 select SYS_HAS_CPU_R5500 1058 select SYS_SUPPORTS_32BIT_KERNEL 1059 select SYS_SUPPORTS_64BIT_KERNEL 1060 select SYS_SUPPORTS_BIG_ENDIAN 1061 1062config SOC_PNX833X 1063 bool 1064 select CEVT_R4K 1065 select CSRC_R4K 1066 select IRQ_CPU 1067 select DMA_NONCOHERENT 1068 select SYS_HAS_CPU_MIPS32_R2 1069 select SYS_SUPPORTS_32BIT_KERNEL 1070 select SYS_SUPPORTS_LITTLE_ENDIAN 1071 select SYS_SUPPORTS_BIG_ENDIAN 1072 select CPU_MIPSR2_IRQ_VI 1073 1074config SOC_PNX8335 1075 bool 1076 select SOC_PNX833X 1077 1078config SWAP_IO_SPACE 1079 bool 1080 1081config SGI_HAS_INDYDOG 1082 bool 1083 1084config SGI_HAS_HAL2 1085 bool 1086 1087config SGI_HAS_SEEQ 1088 bool 1089 1090config SGI_HAS_WD93 1091 bool 1092 1093config SGI_HAS_ZILOG 1094 bool 1095 1096config SGI_HAS_I8042 1097 bool 1098 1099config DEFAULT_SGI_PARTITION 1100 bool 1101 1102config FW_ARC32 1103 bool 1104 1105config FW_SNIPROM 1106 bool 1107 1108config BOOT_ELF32 1109 bool 1110 1111config MIPS_L1_CACHE_SHIFT 1112 int 1113 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL || SOC_RT288X 1114 default "6" if MIPS_CPU_SCACHE 1115 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON 1116 default "5" 1117 1118config HAVE_STD_PC_SERIAL_PORT 1119 bool 1120 1121config ARC_CONSOLE 1122 bool "ARC console support" 1123 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1124 1125config ARC_MEMORY 1126 bool 1127 depends on MACH_JAZZ || SNI_RM || SGI_IP32 1128 default y 1129 1130config ARC_PROMLIB 1131 bool 1132 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 1133 default y 1134 1135config FW_ARC64 1136 bool 1137 1138config BOOT_ELF64 1139 bool 1140 1141menu "CPU selection" 1142 1143choice 1144 prompt "CPU type" 1145 default CPU_R4X00 1146 1147config CPU_LOONGSON2E 1148 bool "Loongson 2E" 1149 depends on SYS_HAS_CPU_LOONGSON2E 1150 select CPU_LOONGSON2 1151 help 1152 The Loongson 2E processor implements the MIPS III instruction set 1153 with many extensions. 1154 1155 It has an internal FPGA northbridge, which is compatible to 1156 bonito64. 1157 1158config CPU_LOONGSON2F 1159 bool "Loongson 2F" 1160 depends on SYS_HAS_CPU_LOONGSON2F 1161 select CPU_LOONGSON2 1162 select ARCH_REQUIRE_GPIOLIB 1163 help 1164 The Loongson 2F processor implements the MIPS III instruction set 1165 with many extensions. 1166 1167 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1168 have a similar programming interface with FPGA northbridge used in 1169 Loongson2E. 1170 1171config CPU_LOONGSON1B 1172 bool "Loongson 1B" 1173 depends on SYS_HAS_CPU_LOONGSON1B 1174 select CPU_LOONGSON1 1175 help 1176 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1177 release 2 instruction set. 1178 1179config CPU_MIPS32_R1 1180 bool "MIPS32 Release 1" 1181 depends on SYS_HAS_CPU_MIPS32_R1 1182 select CPU_HAS_PREFETCH 1183 select CPU_SUPPORTS_32BIT_KERNEL 1184 select CPU_SUPPORTS_HIGHMEM 1185 help 1186 Choose this option to build a kernel for release 1 or later of the 1187 MIPS32 architecture. Most modern embedded systems with a 32-bit 1188 MIPS processor are based on a MIPS32 processor. If you know the 1189 specific type of processor in your system, choose those that one 1190 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1191 Release 2 of the MIPS32 architecture is available since several 1192 years so chances are you even have a MIPS32 Release 2 processor 1193 in which case you should choose CPU_MIPS32_R2 instead for better 1194 performance. 1195 1196config CPU_MIPS32_R2 1197 bool "MIPS32 Release 2" 1198 depends on SYS_HAS_CPU_MIPS32_R2 1199 select CPU_HAS_PREFETCH 1200 select CPU_SUPPORTS_32BIT_KERNEL 1201 select CPU_SUPPORTS_HIGHMEM 1202 select HAVE_KVM 1203 help 1204 Choose this option to build a kernel for release 2 or later of the 1205 MIPS32 architecture. Most modern embedded systems with a 32-bit 1206 MIPS processor are based on a MIPS32 processor. If you know the 1207 specific type of processor in your system, choose those that one 1208 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1209 1210config CPU_MIPS64_R1 1211 bool "MIPS64 Release 1" 1212 depends on SYS_HAS_CPU_MIPS64_R1 1213 select CPU_HAS_PREFETCH 1214 select CPU_SUPPORTS_32BIT_KERNEL 1215 select CPU_SUPPORTS_64BIT_KERNEL 1216 select CPU_SUPPORTS_HIGHMEM 1217 select CPU_SUPPORTS_HUGEPAGES 1218 help 1219 Choose this option to build a kernel for release 1 or later of the 1220 MIPS64 architecture. Many modern embedded systems with a 64-bit 1221 MIPS processor are based on a MIPS64 processor. If you know the 1222 specific type of processor in your system, choose those that one 1223 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1224 Release 2 of the MIPS64 architecture is available since several 1225 years so chances are you even have a MIPS64 Release 2 processor 1226 in which case you should choose CPU_MIPS64_R2 instead for better 1227 performance. 1228 1229config CPU_MIPS64_R2 1230 bool "MIPS64 Release 2" 1231 depends on SYS_HAS_CPU_MIPS64_R2 1232 select CPU_HAS_PREFETCH 1233 select CPU_SUPPORTS_32BIT_KERNEL 1234 select CPU_SUPPORTS_64BIT_KERNEL 1235 select CPU_SUPPORTS_HIGHMEM 1236 select CPU_SUPPORTS_HUGEPAGES 1237 help 1238 Choose this option to build a kernel for release 2 or later of the 1239 MIPS64 architecture. Many modern embedded systems with a 64-bit 1240 MIPS processor are based on a MIPS64 processor. If you know the 1241 specific type of processor in your system, choose those that one 1242 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1243 1244config CPU_R3000 1245 bool "R3000" 1246 depends on SYS_HAS_CPU_R3000 1247 select CPU_HAS_WB 1248 select CPU_SUPPORTS_32BIT_KERNEL 1249 select CPU_SUPPORTS_HIGHMEM 1250 help 1251 Please make sure to pick the right CPU type. Linux/MIPS is not 1252 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1253 *not* work on R4000 machines and vice versa. However, since most 1254 of the supported machines have an R4000 (or similar) CPU, R4x00 1255 might be a safe bet. If the resulting kernel does not work, 1256 try to recompile with R3000. 1257 1258config CPU_TX39XX 1259 bool "R39XX" 1260 depends on SYS_HAS_CPU_TX39XX 1261 select CPU_SUPPORTS_32BIT_KERNEL 1262 1263config CPU_VR41XX 1264 bool "R41xx" 1265 depends on SYS_HAS_CPU_VR41XX 1266 select CPU_SUPPORTS_32BIT_KERNEL 1267 select CPU_SUPPORTS_64BIT_KERNEL 1268 help 1269 The options selects support for the NEC VR4100 series of processors. 1270 Only choose this option if you have one of these processors as a 1271 kernel built with this option will not run on any other type of 1272 processor or vice versa. 1273 1274config CPU_R4300 1275 bool "R4300" 1276 depends on SYS_HAS_CPU_R4300 1277 select CPU_SUPPORTS_32BIT_KERNEL 1278 select CPU_SUPPORTS_64BIT_KERNEL 1279 help 1280 MIPS Technologies R4300-series processors. 1281 1282config CPU_R4X00 1283 bool "R4x00" 1284 depends on SYS_HAS_CPU_R4X00 1285 select CPU_SUPPORTS_32BIT_KERNEL 1286 select CPU_SUPPORTS_64BIT_KERNEL 1287 select CPU_SUPPORTS_HUGEPAGES 1288 help 1289 MIPS Technologies R4000-series processors other than 4300, including 1290 the R4000, R4400, R4600, and 4700. 1291 1292config CPU_TX49XX 1293 bool "R49XX" 1294 depends on SYS_HAS_CPU_TX49XX 1295 select CPU_HAS_PREFETCH 1296 select CPU_SUPPORTS_32BIT_KERNEL 1297 select CPU_SUPPORTS_64BIT_KERNEL 1298 select CPU_SUPPORTS_HUGEPAGES 1299 1300config CPU_R5000 1301 bool "R5000" 1302 depends on SYS_HAS_CPU_R5000 1303 select CPU_SUPPORTS_32BIT_KERNEL 1304 select CPU_SUPPORTS_64BIT_KERNEL 1305 select CPU_SUPPORTS_HUGEPAGES 1306 help 1307 MIPS Technologies R5000-series processors other than the Nevada. 1308 1309config CPU_R5432 1310 bool "R5432" 1311 depends on SYS_HAS_CPU_R5432 1312 select CPU_SUPPORTS_32BIT_KERNEL 1313 select CPU_SUPPORTS_64BIT_KERNEL 1314 select CPU_SUPPORTS_HUGEPAGES 1315 1316config CPU_R5500 1317 bool "R5500" 1318 depends on SYS_HAS_CPU_R5500 1319 select CPU_SUPPORTS_32BIT_KERNEL 1320 select CPU_SUPPORTS_64BIT_KERNEL 1321 select CPU_SUPPORTS_HUGEPAGES 1322 help 1323 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1324 instruction set. 1325 1326config CPU_R6000 1327 bool "R6000" 1328 depends on SYS_HAS_CPU_R6000 1329 select CPU_SUPPORTS_32BIT_KERNEL 1330 help 1331 MIPS Technologies R6000 and R6000A series processors. Note these 1332 processors are extremely rare and the support for them is incomplete. 1333 1334config CPU_NEVADA 1335 bool "RM52xx" 1336 depends on SYS_HAS_CPU_NEVADA 1337 select CPU_SUPPORTS_32BIT_KERNEL 1338 select CPU_SUPPORTS_64BIT_KERNEL 1339 select CPU_SUPPORTS_HUGEPAGES 1340 help 1341 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1342 1343config CPU_R8000 1344 bool "R8000" 1345 depends on SYS_HAS_CPU_R8000 1346 select CPU_HAS_PREFETCH 1347 select CPU_SUPPORTS_64BIT_KERNEL 1348 help 1349 MIPS Technologies R8000 processors. Note these processors are 1350 uncommon and the support for them is incomplete. 1351 1352config CPU_R10000 1353 bool "R10000" 1354 depends on SYS_HAS_CPU_R10000 1355 select CPU_HAS_PREFETCH 1356 select CPU_SUPPORTS_32BIT_KERNEL 1357 select CPU_SUPPORTS_64BIT_KERNEL 1358 select CPU_SUPPORTS_HIGHMEM 1359 select CPU_SUPPORTS_HUGEPAGES 1360 help 1361 MIPS Technologies R10000-series processors. 1362 1363config CPU_RM7000 1364 bool "RM7000" 1365 depends on SYS_HAS_CPU_RM7000 1366 select CPU_HAS_PREFETCH 1367 select CPU_SUPPORTS_32BIT_KERNEL 1368 select CPU_SUPPORTS_64BIT_KERNEL 1369 select CPU_SUPPORTS_HIGHMEM 1370 select CPU_SUPPORTS_HUGEPAGES 1371 1372config CPU_SB1 1373 bool "SB1" 1374 depends on SYS_HAS_CPU_SB1 1375 select CPU_SUPPORTS_32BIT_KERNEL 1376 select CPU_SUPPORTS_64BIT_KERNEL 1377 select CPU_SUPPORTS_HIGHMEM 1378 select CPU_SUPPORTS_HUGEPAGES 1379 select WEAK_ORDERING 1380 1381config CPU_CAVIUM_OCTEON 1382 bool "Cavium Octeon processor" 1383 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1384 select ARCH_SPARSEMEM_ENABLE 1385 select CPU_HAS_PREFETCH 1386 select CPU_SUPPORTS_64BIT_KERNEL 1387 select SYS_SUPPORTS_SMP 1388 select NR_CPUS_DEFAULT_16 1389 select WEAK_ORDERING 1390 select CPU_SUPPORTS_HIGHMEM 1391 select CPU_SUPPORTS_HUGEPAGES 1392 select LIBFDT 1393 select USE_OF 1394 select USB_EHCI_BIG_ENDIAN_MMIO 1395 help 1396 The Cavium Octeon processor is a highly integrated chip containing 1397 many ethernet hardware widgets for networking tasks. The processor 1398 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1399 Full details can be found at http://www.caviumnetworks.com. 1400 1401config CPU_BMIPS3300 1402 bool "BMIPS3300" 1403 depends on SYS_HAS_CPU_BMIPS3300 1404 select CPU_BMIPS 1405 help 1406 Broadcom BMIPS3300 processors. 1407 1408config CPU_BMIPS4350 1409 bool "BMIPS4350" 1410 depends on SYS_HAS_CPU_BMIPS4350 1411 select CPU_BMIPS 1412 select SYS_SUPPORTS_SMP 1413 select SYS_SUPPORTS_HOTPLUG_CPU 1414 help 1415 Broadcom BMIPS4350 ("VIPER") processors. 1416 1417config CPU_BMIPS4380 1418 bool "BMIPS4380" 1419 depends on SYS_HAS_CPU_BMIPS4380 1420 select CPU_BMIPS 1421 select SYS_SUPPORTS_SMP 1422 select SYS_SUPPORTS_HOTPLUG_CPU 1423 help 1424 Broadcom BMIPS4380 processors. 1425 1426config CPU_BMIPS5000 1427 bool "BMIPS5000" 1428 depends on SYS_HAS_CPU_BMIPS5000 1429 select CPU_BMIPS 1430 select CPU_SUPPORTS_HIGHMEM 1431 select MIPS_CPU_SCACHE 1432 select SYS_SUPPORTS_SMP 1433 select SYS_SUPPORTS_HOTPLUG_CPU 1434 help 1435 Broadcom BMIPS5000 processors. 1436 1437config CPU_XLR 1438 bool "Netlogic XLR SoC" 1439 depends on SYS_HAS_CPU_XLR 1440 select CPU_SUPPORTS_32BIT_KERNEL 1441 select CPU_SUPPORTS_64BIT_KERNEL 1442 select CPU_SUPPORTS_HIGHMEM 1443 select CPU_SUPPORTS_HUGEPAGES 1444 select WEAK_ORDERING 1445 select WEAK_REORDERING_BEYOND_LLSC 1446 help 1447 Netlogic Microsystems XLR/XLS processors. 1448 1449config CPU_XLP 1450 bool "Netlogic XLP SoC" 1451 depends on SYS_HAS_CPU_XLP 1452 select CPU_SUPPORTS_32BIT_KERNEL 1453 select CPU_SUPPORTS_64BIT_KERNEL 1454 select CPU_SUPPORTS_HIGHMEM 1455 select WEAK_ORDERING 1456 select WEAK_REORDERING_BEYOND_LLSC 1457 select CPU_HAS_PREFETCH 1458 select CPU_MIPSR2 1459 help 1460 Netlogic Microsystems XLP processors. 1461endchoice 1462 1463if CPU_LOONGSON2F 1464config CPU_NOP_WORKAROUNDS 1465 bool 1466 1467config CPU_JUMP_WORKAROUNDS 1468 bool 1469 1470config CPU_LOONGSON2F_WORKAROUNDS 1471 bool "Loongson 2F Workarounds" 1472 default y 1473 select CPU_NOP_WORKAROUNDS 1474 select CPU_JUMP_WORKAROUNDS 1475 help 1476 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1477 require workarounds. Without workarounds the system may hang 1478 unexpectedly. For more information please refer to the gas 1479 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1480 1481 Loongson 2F03 and later have fixed these issues and no workarounds 1482 are needed. The workarounds have no significant side effect on them 1483 but may decrease the performance of the system so this option should 1484 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1485 systems. 1486 1487 If unsure, please say Y. 1488endif # CPU_LOONGSON2F 1489 1490config SYS_SUPPORTS_ZBOOT 1491 bool 1492 select HAVE_KERNEL_GZIP 1493 select HAVE_KERNEL_BZIP2 1494 select HAVE_KERNEL_LZMA 1495 select HAVE_KERNEL_LZO 1496 1497config SYS_SUPPORTS_ZBOOT_UART16550 1498 bool 1499 select SYS_SUPPORTS_ZBOOT 1500 1501config CPU_LOONGSON2 1502 bool 1503 select CPU_SUPPORTS_32BIT_KERNEL 1504 select CPU_SUPPORTS_64BIT_KERNEL 1505 select CPU_SUPPORTS_HIGHMEM 1506 select CPU_SUPPORTS_HUGEPAGES 1507 1508config CPU_LOONGSON1 1509 bool 1510 select CPU_MIPS32 1511 select CPU_MIPSR2 1512 select CPU_HAS_PREFETCH 1513 select CPU_SUPPORTS_32BIT_KERNEL 1514 select CPU_SUPPORTS_HIGHMEM 1515 1516config CPU_BMIPS 1517 bool 1518 select CPU_MIPS32 1519 select CPU_SUPPORTS_32BIT_KERNEL 1520 select DMA_NONCOHERENT 1521 select IRQ_CPU 1522 select SWAP_IO_SPACE 1523 select WEAK_ORDERING 1524 1525config SYS_HAS_CPU_LOONGSON2E 1526 bool 1527 1528config SYS_HAS_CPU_LOONGSON2F 1529 bool 1530 select CPU_SUPPORTS_CPUFREQ 1531 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1532 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1533 1534config SYS_HAS_CPU_LOONGSON1B 1535 bool 1536 1537config SYS_HAS_CPU_MIPS32_R1 1538 bool 1539 1540config SYS_HAS_CPU_MIPS32_R2 1541 bool 1542 1543config SYS_HAS_CPU_MIPS64_R1 1544 bool 1545 1546config SYS_HAS_CPU_MIPS64_R2 1547 bool 1548 1549config SYS_HAS_CPU_R3000 1550 bool 1551 1552config SYS_HAS_CPU_TX39XX 1553 bool 1554 1555config SYS_HAS_CPU_VR41XX 1556 bool 1557 1558config SYS_HAS_CPU_R4300 1559 bool 1560 1561config SYS_HAS_CPU_R4X00 1562 bool 1563 1564config SYS_HAS_CPU_TX49XX 1565 bool 1566 1567config SYS_HAS_CPU_R5000 1568 bool 1569 1570config SYS_HAS_CPU_R5432 1571 bool 1572 1573config SYS_HAS_CPU_R5500 1574 bool 1575 1576config SYS_HAS_CPU_R6000 1577 bool 1578 1579config SYS_HAS_CPU_NEVADA 1580 bool 1581 1582config SYS_HAS_CPU_R8000 1583 bool 1584 1585config SYS_HAS_CPU_R10000 1586 bool 1587 1588config SYS_HAS_CPU_RM7000 1589 bool 1590 1591config SYS_HAS_CPU_SB1 1592 bool 1593 1594config SYS_HAS_CPU_CAVIUM_OCTEON 1595 bool 1596 1597config SYS_HAS_CPU_BMIPS3300 1598 bool 1599 1600config SYS_HAS_CPU_BMIPS4350 1601 bool 1602 1603config SYS_HAS_CPU_BMIPS4380 1604 bool 1605 1606config SYS_HAS_CPU_BMIPS5000 1607 bool 1608 1609config SYS_HAS_CPU_XLR 1610 bool 1611 1612config SYS_HAS_CPU_XLP 1613 bool 1614 1615# 1616# CPU may reorder R->R, R->W, W->R, W->W 1617# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 1618# 1619config WEAK_ORDERING 1620 bool 1621 1622# 1623# CPU may reorder reads and writes beyond LL/SC 1624# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 1625# 1626config WEAK_REORDERING_BEYOND_LLSC 1627 bool 1628endmenu 1629 1630# 1631# These two indicate any level of the MIPS32 and MIPS64 architecture 1632# 1633config CPU_MIPS32 1634 bool 1635 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 1636 1637config CPU_MIPS64 1638 bool 1639 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 1640 1641# 1642# These two indicate the revision of the architecture, either Release 1 or Release 2 1643# 1644config CPU_MIPSR1 1645 bool 1646 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 1647 1648config CPU_MIPSR2 1649 bool 1650 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 1651 1652config SYS_SUPPORTS_32BIT_KERNEL 1653 bool 1654config SYS_SUPPORTS_64BIT_KERNEL 1655 bool 1656config CPU_SUPPORTS_32BIT_KERNEL 1657 bool 1658config CPU_SUPPORTS_64BIT_KERNEL 1659 bool 1660config CPU_SUPPORTS_CPUFREQ 1661 bool 1662config CPU_SUPPORTS_ADDRWINCFG 1663 bool 1664config CPU_SUPPORTS_HUGEPAGES 1665 bool 1666config CPU_SUPPORTS_UNCACHED_ACCELERATED 1667 bool 1668config MIPS_PGD_C0_CONTEXT 1669 bool 1670 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP 1671 1672# 1673# Set to y for ptrace access to watch registers. 1674# 1675config HARDWARE_WATCHPOINTS 1676 bool 1677 default y if CPU_MIPSR1 || CPU_MIPSR2 1678 1679menu "Kernel type" 1680 1681choice 1682 prompt "Kernel code model" 1683 help 1684 You should only select this option if you have a workload that 1685 actually benefits from 64-bit processing or if your machine has 1686 large memory. You will only be presented a single option in this 1687 menu if your system does not support both 32-bit and 64-bit kernels. 1688 1689config 32BIT 1690 bool "32-bit kernel" 1691 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 1692 select TRAD_SIGNALS 1693 help 1694 Select this option if you want to build a 32-bit kernel. 1695config 64BIT 1696 bool "64-bit kernel" 1697 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 1698 help 1699 Select this option if you want to build a 64-bit kernel. 1700 1701endchoice 1702 1703config KVM_GUEST 1704 bool "KVM Guest Kernel" 1705 help 1706 Select this option if building a guest kernel for KVM (Trap & Emulate) mode 1707 1708config KVM_HOST_FREQ 1709 int "KVM Host Processor Frequency (MHz)" 1710 depends on KVM_GUEST 1711 default 500 1712 help 1713 Select this option if building a guest kernel for KVM to skip 1714 RTC emulation when determining guest CPU Frequency. Instead, the guest 1715 processor frequency is automatically derived from the host frequency. 1716 1717choice 1718 prompt "Kernel page size" 1719 default PAGE_SIZE_4KB 1720 1721config PAGE_SIZE_4KB 1722 bool "4kB" 1723 depends on !CPU_LOONGSON2 1724 help 1725 This option select the standard 4kB Linux page size. On some 1726 R3000-family processors this is the only available page size. Using 1727 4kB page size will minimize memory consumption and is therefore 1728 recommended for low memory systems. 1729 1730config PAGE_SIZE_8KB 1731 bool "8kB" 1732 depends on CPU_R8000 || CPU_CAVIUM_OCTEON 1733 help 1734 Using 8kB page size will result in higher performance kernel at 1735 the price of higher memory consumption. This option is available 1736 only on R8000 and cnMIPS processors. Note that you will need a 1737 suitable Linux distribution to support this. 1738 1739config PAGE_SIZE_16KB 1740 bool "16kB" 1741 depends on !CPU_R3000 && !CPU_TX39XX 1742 help 1743 Using 16kB page size will result in higher performance kernel at 1744 the price of higher memory consumption. This option is available on 1745 all non-R3000 family processors. Note that you will need a suitable 1746 Linux distribution to support this. 1747 1748config PAGE_SIZE_32KB 1749 bool "32kB" 1750 depends on CPU_CAVIUM_OCTEON 1751 help 1752 Using 32kB page size will result in higher performance kernel at 1753 the price of higher memory consumption. This option is available 1754 only on cnMIPS cores. Note that you will need a suitable Linux 1755 distribution to support this. 1756 1757config PAGE_SIZE_64KB 1758 bool "64kB" 1759 depends on !CPU_R3000 && !CPU_TX39XX 1760 help 1761 Using 64kB page size will result in higher performance kernel at 1762 the price of higher memory consumption. This option is available on 1763 all non-R3000 family processor. Not that at the time of this 1764 writing this option is still high experimental. 1765 1766endchoice 1767 1768config FORCE_MAX_ZONEORDER 1769 int "Maximum zone order" 1770 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB 1771 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB 1772 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB 1773 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB 1774 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB 1775 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB 1776 range 11 64 1777 default "11" 1778 help 1779 The kernel memory allocator divides physically contiguous memory 1780 blocks into "zones", where each zone is a power of two number of 1781 pages. This option selects the largest power of two that the kernel 1782 keeps in the memory allocator. If you need to allocate very large 1783 blocks of physically contiguous memory, then you may need to 1784 increase this value. 1785 1786 This config option is actually maximum order plus one. For example, 1787 a value of 11 means that the largest free memory block is 2^10 pages. 1788 1789 The page size is not necessarily 4KB. Keep this in mind 1790 when choosing a value for this option. 1791 1792config CEVT_GIC 1793 bool "Use GIC global counter for clock events" 1794 depends on IRQ_GIC && !(MIPS_SEAD3 || MIPS_MT_SMTC) 1795 help 1796 Use the GIC global counter for the clock events. The R4K clock 1797 event driver is always present, so if the platform ends up not 1798 detecting a GIC, it will fall back to the R4K timer for the 1799 generation of clock events. 1800 1801config BOARD_SCACHE 1802 bool 1803 1804config IP22_CPU_SCACHE 1805 bool 1806 select BOARD_SCACHE 1807 1808# 1809# Support for a MIPS32 / MIPS64 style S-caches 1810# 1811config MIPS_CPU_SCACHE 1812 bool 1813 select BOARD_SCACHE 1814 1815config R5000_CPU_SCACHE 1816 bool 1817 select BOARD_SCACHE 1818 1819config RM7000_CPU_SCACHE 1820 bool 1821 select BOARD_SCACHE 1822 1823config SIBYTE_DMA_PAGEOPS 1824 bool "Use DMA to clear/copy pages" 1825 depends on CPU_SB1 1826 help 1827 Instead of using the CPU to zero and copy pages, use a Data Mover 1828 channel. These DMA channels are otherwise unused by the standard 1829 SiByte Linux port. Seems to give a small performance benefit. 1830 1831config CPU_HAS_PREFETCH 1832 bool 1833 1834config CPU_GENERIC_DUMP_TLB 1835 bool 1836 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX) 1837 1838config CPU_R4K_FPU 1839 bool 1840 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 1841 1842config CPU_R4K_CACHE_TLB 1843 bool 1844 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 1845 1846choice 1847 prompt "MIPS MT options" 1848 1849config MIPS_MT_DISABLED 1850 bool "Disable multithreading support." 1851 help 1852 Use this option if your workload can't take advantage of 1853 MIPS hardware multithreading support. On systems that don't have 1854 the option of an MT-enabled processor this option will be the only 1855 option in this menu. 1856 1857config MIPS_MT_SMP 1858 bool "Use 1 TC on each available VPE for SMP" 1859 depends on SYS_SUPPORTS_MULTITHREADING 1860 select CPU_MIPSR2_IRQ_VI 1861 select CPU_MIPSR2_IRQ_EI 1862 select MIPS_MT 1863 select NR_CPUS_DEFAULT_2 1864 select SMP 1865 select SYS_SUPPORTS_SCHED_SMT if SMP 1866 select SYS_SUPPORTS_SMP 1867 select SMP_UP 1868 select MIPS_PERF_SHARED_TC_COUNTERS 1869 help 1870 This is a kernel model which is known a VSMP but lately has been 1871 marketesed into SMVP. 1872 Virtual SMP uses the processor's VPEs to implement virtual 1873 processors. In currently available configuration of the 34K processor 1874 this allows for a dual processor. Both processors will share the same 1875 primary caches; each will obtain the half of the TLB for it's own 1876 exclusive use. For a layman this model can be described as similar to 1877 what Intel calls Hyperthreading. 1878 1879 For further information see http://www.linux-mips.org/wiki/34K#VSMP 1880 1881config MIPS_MT_SMTC 1882 bool "SMTC: Use all TCs on all VPEs for SMP" 1883 depends on CPU_MIPS32_R2 1884 #depends on CPU_MIPS64_R2 # once there is hardware ... 1885 depends on SYS_SUPPORTS_MULTITHREADING 1886 select CPU_MIPSR2_IRQ_VI 1887 select CPU_MIPSR2_IRQ_EI 1888 select MIPS_MT 1889 select NR_CPUS_DEFAULT_8 1890 select SMP 1891 select SYS_SUPPORTS_SMP 1892 select SMP_UP 1893 help 1894 This is a kernel model which is known a SMTC or lately has been 1895 marketesed into SMVP. 1896 is presenting the available TC's of the core as processors to Linux. 1897 On currently available 34K processors this means a Linux system will 1898 see up to 5 processors. The implementation of the SMTC kernel differs 1899 significantly from VSMP and cannot efficiently coexist in the same 1900 kernel binary so the choice between VSMP and SMTC is a compile time 1901 decision. 1902 1903 For further information see http://www.linux-mips.org/wiki/34K#SMTC 1904 1905endchoice 1906 1907config MIPS_MT 1908 bool 1909 1910config SCHED_SMT 1911 bool "SMT (multithreading) scheduler support" 1912 depends on SYS_SUPPORTS_SCHED_SMT 1913 default n 1914 help 1915 SMT scheduler support improves the CPU scheduler's decision making 1916 when dealing with MIPS MT enabled cores at a cost of slightly 1917 increased overhead in some places. If unsure say N here. 1918 1919config SYS_SUPPORTS_SCHED_SMT 1920 bool 1921 1922config SYS_SUPPORTS_MULTITHREADING 1923 bool 1924 1925config MIPS_MT_FPAFF 1926 bool "Dynamic FPU affinity for FP-intensive threads" 1927 default y 1928 depends on MIPS_MT_SMP || MIPS_MT_SMTC 1929 1930config MIPS_VPE_LOADER 1931 bool "VPE loader support." 1932 depends on SYS_SUPPORTS_MULTITHREADING && MODULES 1933 select CPU_MIPSR2_IRQ_VI 1934 select CPU_MIPSR2_IRQ_EI 1935 select MIPS_MT 1936 help 1937 Includes a loader for loading an elf relocatable object 1938 onto another VPE and running it. 1939 1940config MIPS_MT_SMTC_IM_BACKSTOP 1941 bool "Use per-TC register bits as backstop for inhibited IM bits" 1942 depends on MIPS_MT_SMTC 1943 default n 1944 help 1945 To support multiple TC microthreads acting as "CPUs" within 1946 a VPE, VPE-wide interrupt mask bits must be specially manipulated 1947 during interrupt handling. To support legacy drivers and interrupt 1948 controller management code, SMTC has a "backstop" to track and 1949 if necessary restore the interrupt mask. This has some performance 1950 impact on interrupt service overhead. 1951 1952config MIPS_MT_SMTC_IRQAFF 1953 bool "Support IRQ affinity API" 1954 depends on MIPS_MT_SMTC 1955 default n 1956 help 1957 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.) 1958 for SMTC Linux kernel. Requires platform support, of which 1959 an example can be found in the MIPS kernel i8259 and Malta 1960 platform code. Adds some overhead to interrupt dispatch, and 1961 should be used only if you know what you are doing. 1962 1963config MIPS_VPE_LOADER_TOM 1964 bool "Load VPE program into memory hidden from linux" 1965 depends on MIPS_VPE_LOADER 1966 default y 1967 help 1968 The loader can use memory that is present but has been hidden from 1969 Linux using the kernel command line option "mem=xxMB". It's up to 1970 you to ensure the amount you put in the option and the space your 1971 program requires is less or equal to the amount physically present. 1972 1973# this should possibly be in drivers/char, but it is rather cpu related. Hmmm 1974config MIPS_VPE_APSP_API 1975 bool "Enable support for AP/SP API (RTLX)" 1976 depends on MIPS_VPE_LOADER 1977 help 1978 1979config MIPS_CMP 1980 bool "MIPS CMP framework support" 1981 depends on SYS_SUPPORTS_MIPS_CMP 1982 select SYNC_R4K 1983 select SYS_SUPPORTS_SMP 1984 select SYS_SUPPORTS_SCHED_SMT if SMP 1985 select WEAK_ORDERING 1986 default n 1987 help 1988 This is a placeholder option for the GCMP work. It will need to 1989 be handled differently... 1990 1991config SB1_PASS_1_WORKAROUNDS 1992 bool 1993 depends on CPU_SB1_PASS_1 1994 default y 1995 1996config SB1_PASS_2_WORKAROUNDS 1997 bool 1998 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 1999 default y 2000 2001config SB1_PASS_2_1_WORKAROUNDS 2002 bool 2003 depends on CPU_SB1 && CPU_SB1_PASS_2 2004 default y 2005 2006 2007config 64BIT_PHYS_ADDR 2008 bool 2009 2010config ARCH_PHYS_ADDR_T_64BIT 2011 def_bool 64BIT_PHYS_ADDR 2012 2013config CPU_HAS_SMARTMIPS 2014 depends on SYS_SUPPORTS_SMARTMIPS 2015 bool "Support for the SmartMIPS ASE" 2016 help 2017 SmartMIPS is a extension of the MIPS32 architecture aimed at 2018 increased security at both hardware and software level for 2019 smartcards. Enabling this option will allow proper use of the 2020 SmartMIPS instructions by Linux applications. However a kernel with 2021 this option will not work on a MIPS core without SmartMIPS core. If 2022 you don't know you probably don't have SmartMIPS and should say N 2023 here. 2024 2025config CPU_MICROMIPS 2026 depends on SYS_SUPPORTS_MICROMIPS 2027 bool "Build kernel using microMIPS ISA" 2028 help 2029 When this option is enabled the kernel will be built using the 2030 microMIPS ISA 2031 2032config CPU_HAS_WB 2033 bool 2034 2035config XKS01 2036 bool 2037 2038# 2039# Vectored interrupt mode is an R2 feature 2040# 2041config CPU_MIPSR2_IRQ_VI 2042 bool 2043 2044# 2045# Extended interrupt mode is an R2 feature 2046# 2047config CPU_MIPSR2_IRQ_EI 2048 bool 2049 2050config CPU_HAS_SYNC 2051 bool 2052 depends on !CPU_R3000 2053 default y 2054 2055# 2056# CPU non-features 2057# 2058config CPU_DADDI_WORKAROUNDS 2059 bool 2060 2061config CPU_R4000_WORKAROUNDS 2062 bool 2063 select CPU_R4400_WORKAROUNDS 2064 2065config CPU_R4400_WORKAROUNDS 2066 bool 2067 2068# 2069# - Highmem only makes sense for the 32-bit kernel. 2070# - The current highmem code will only work properly on physically indexed 2071# caches such as R3000, SB1, R7000 or those that look like they're virtually 2072# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2073# moment we protect the user and offer the highmem option only on machines 2074# where it's known to be safe. This will not offer highmem on a few systems 2075# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2076# indexed CPUs but we're playing safe. 2077# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2078# know they might have memory configurations that could make use of highmem 2079# support. 2080# 2081config HIGHMEM 2082 bool "High Memory Support" 2083 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM 2084 2085config CPU_SUPPORTS_HIGHMEM 2086 bool 2087 2088config SYS_SUPPORTS_HIGHMEM 2089 bool 2090 2091config SYS_SUPPORTS_SMARTMIPS 2092 bool 2093 2094config SYS_SUPPORTS_MICROMIPS 2095 bool 2096 2097config ARCH_FLATMEM_ENABLE 2098 def_bool y 2099 depends on !NUMA && !CPU_LOONGSON2 2100 2101config ARCH_DISCONTIGMEM_ENABLE 2102 bool 2103 default y if SGI_IP27 2104 help 2105 Say Y to support efficient handling of discontiguous physical memory, 2106 for architectures which are either NUMA (Non-Uniform Memory Access) 2107 or have huge holes in the physical address space for other reasons. 2108 See <file:Documentation/vm/numa> for more. 2109 2110config ARCH_SPARSEMEM_ENABLE 2111 bool 2112 select SPARSEMEM_STATIC 2113 2114config NUMA 2115 bool "NUMA Support" 2116 depends on SYS_SUPPORTS_NUMA 2117 help 2118 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2119 Access). This option improves performance on systems with more 2120 than two nodes; on two node systems it is generally better to 2121 leave it disabled; on single node systems disable this option 2122 disabled. 2123 2124config SYS_SUPPORTS_NUMA 2125 bool 2126 2127config NODES_SHIFT 2128 int 2129 default "6" 2130 depends on NEED_MULTIPLE_NODES 2131 2132config HW_PERF_EVENTS 2133 bool "Enable hardware performance counter support for perf events" 2134 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP) 2135 default y 2136 help 2137 Enable hardware performance counter support for perf events. If 2138 disabled, perf events will use software events only. 2139 2140source "mm/Kconfig" 2141 2142config SMP 2143 bool "Multi-Processing support" 2144 depends on SYS_SUPPORTS_SMP 2145 select USE_GENERIC_SMP_HELPERS 2146 help 2147 This enables support for systems with more than one CPU. If you have 2148 a system with only one CPU, like most personal computers, say N. If 2149 you have a system with more than one CPU, say Y. 2150 2151 If you say N here, the kernel will run on single and multiprocessor 2152 machines, but will use only one CPU of a multiprocessor machine. If 2153 you say Y here, the kernel will run on many, but not all, 2154 singleprocessor machines. On a singleprocessor machine, the kernel 2155 will run faster if you say N here. 2156 2157 People using multiprocessor machines who say Y here should also say 2158 Y to "Enhanced Real Time Clock Support", below. 2159 2160 See also the SMP-HOWTO available at 2161 <http://www.tldp.org/docs.html#howto>. 2162 2163 If you don't know what to do here, say N. 2164 2165config SMP_UP 2166 bool 2167 2168config SYS_SUPPORTS_MIPS_CMP 2169 bool 2170 2171config SYS_SUPPORTS_SMP 2172 bool 2173 2174config NR_CPUS_DEFAULT_1 2175 bool 2176 2177config NR_CPUS_DEFAULT_2 2178 bool 2179 2180config NR_CPUS_DEFAULT_4 2181 bool 2182 2183config NR_CPUS_DEFAULT_8 2184 bool 2185 2186config NR_CPUS_DEFAULT_16 2187 bool 2188 2189config NR_CPUS_DEFAULT_32 2190 bool 2191 2192config NR_CPUS_DEFAULT_64 2193 bool 2194 2195config NR_CPUS 2196 int "Maximum number of CPUs (2-64)" 2197 range 1 64 if NR_CPUS_DEFAULT_1 2198 depends on SMP 2199 default "1" if NR_CPUS_DEFAULT_1 2200 default "2" if NR_CPUS_DEFAULT_2 2201 default "4" if NR_CPUS_DEFAULT_4 2202 default "8" if NR_CPUS_DEFAULT_8 2203 default "16" if NR_CPUS_DEFAULT_16 2204 default "32" if NR_CPUS_DEFAULT_32 2205 default "64" if NR_CPUS_DEFAULT_64 2206 help 2207 This allows you to specify the maximum number of CPUs which this 2208 kernel will support. The maximum supported value is 32 for 32-bit 2209 kernel and 64 for 64-bit kernels; the minimum value which makes 2210 sense is 1 for Qemu (useful only for kernel debugging purposes) 2211 and 2 for all others. 2212 2213 This is purely to save memory - each supported CPU adds 2214 approximately eight kilobytes to the kernel image. For best 2215 performance should round up your number of processors to the next 2216 power of two. 2217 2218config MIPS_PERF_SHARED_TC_COUNTERS 2219 bool 2220 2221# 2222# Timer Interrupt Frequency Configuration 2223# 2224 2225choice 2226 prompt "Timer frequency" 2227 default HZ_250 2228 help 2229 Allows the configuration of the timer frequency. 2230 2231 config HZ_48 2232 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2233 2234 config HZ_100 2235 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2236 2237 config HZ_128 2238 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2239 2240 config HZ_250 2241 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2242 2243 config HZ_256 2244 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2245 2246 config HZ_1000 2247 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2248 2249 config HZ_1024 2250 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2251 2252endchoice 2253 2254config SYS_SUPPORTS_48HZ 2255 bool 2256 2257config SYS_SUPPORTS_100HZ 2258 bool 2259 2260config SYS_SUPPORTS_128HZ 2261 bool 2262 2263config SYS_SUPPORTS_250HZ 2264 bool 2265 2266config SYS_SUPPORTS_256HZ 2267 bool 2268 2269config SYS_SUPPORTS_1000HZ 2270 bool 2271 2272config SYS_SUPPORTS_1024HZ 2273 bool 2274 2275config SYS_SUPPORTS_ARBIT_HZ 2276 bool 2277 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \ 2278 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \ 2279 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \ 2280 !SYS_SUPPORTS_1024HZ 2281 2282config HZ 2283 int 2284 default 48 if HZ_48 2285 default 100 if HZ_100 2286 default 128 if HZ_128 2287 default 250 if HZ_250 2288 default 256 if HZ_256 2289 default 1000 if HZ_1000 2290 default 1024 if HZ_1024 2291 2292source "kernel/Kconfig.preempt" 2293 2294config KEXEC 2295 bool "Kexec system call" 2296 help 2297 kexec is a system call that implements the ability to shutdown your 2298 current kernel, and to start another kernel. It is like a reboot 2299 but it is independent of the system firmware. And like a reboot 2300 you can start any kernel with it, not just Linux. 2301 2302 The name comes from the similarity to the exec system call. 2303 2304 It is an ongoing process to be certain the hardware in a machine 2305 is properly shutdown, so do not be surprised if this code does not 2306 initially work for you. It may help to enable device hotplugging 2307 support. As of this writing the exact hardware interface is 2308 strongly in flux, so no good recommendation can be made. 2309 2310config CRASH_DUMP 2311 bool "Kernel crash dumps" 2312 help 2313 Generate crash dump after being started by kexec. 2314 This should be normally only set in special crash dump kernels 2315 which are loaded in the main kernel with kexec-tools into 2316 a specially reserved region and then later executed after 2317 a crash by kdump/kexec. The crash dump kernel must be compiled 2318 to a memory address not used by the main kernel or firmware using 2319 PHYSICAL_START. 2320 2321config PHYSICAL_START 2322 hex "Physical address where the kernel is loaded" 2323 default "0xffffffff84000000" if 64BIT 2324 default "0x84000000" if 32BIT 2325 depends on CRASH_DUMP 2326 help 2327 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2328 If you plan to use kernel for capturing the crash dump change 2329 this value to start of the reserved region (the "X" value as 2330 specified in the "crashkernel=YM@XM" command line boot parameter 2331 passed to the panic-ed kernel). 2332 2333config SECCOMP 2334 bool "Enable seccomp to safely compute untrusted bytecode" 2335 depends on PROC_FS 2336 default y 2337 help 2338 This kernel feature is useful for number crunching applications 2339 that may need to compute untrusted bytecode during their 2340 execution. By using pipes or other transports made available to 2341 the process as file descriptors supporting the read/write 2342 syscalls, it's possible to isolate those applications in 2343 their own address space using seccomp. Once seccomp is 2344 enabled via /proc/<pid>/seccomp, it cannot be disabled 2345 and the task is only allowed to execute a few safe syscalls 2346 defined by each seccomp mode. 2347 2348 If unsure, say Y. Only embedded should say N here. 2349 2350config CC_STACKPROTECTOR 2351 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)" 2352 help 2353 This option turns on the -fstack-protector GCC feature. This 2354 feature puts, at the beginning of functions, a canary value on 2355 the stack just before the return address, and validates 2356 the value just before actually returning. Stack based buffer 2357 overflows (that need to overwrite this return address) now also 2358 overwrite the canary, which gets detected and the attack is then 2359 neutralized via a kernel panic. 2360 2361 This feature requires gcc version 4.2 or above. 2362 2363config USE_OF 2364 bool 2365 select OF 2366 select OF_EARLY_FLATTREE 2367 select IRQ_DOMAIN 2368 2369endmenu 2370 2371config LOCKDEP_SUPPORT 2372 bool 2373 default y 2374 2375config STACKTRACE_SUPPORT 2376 bool 2377 default y 2378 2379source "init/Kconfig" 2380 2381source "kernel/Kconfig.freezer" 2382 2383menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 2384 2385config HW_HAS_EISA 2386 bool 2387config HW_HAS_PCI 2388 bool 2389 2390config PCI 2391 bool "Support for PCI controller" 2392 depends on HW_HAS_PCI 2393 select PCI_DOMAINS 2394 select NO_GENERIC_PCI_IOPORT_MAP 2395 help 2396 Find out whether you have a PCI motherboard. PCI is the name of a 2397 bus system, i.e. the way the CPU talks to the other stuff inside 2398 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, 2399 say Y, otherwise N. 2400 2401config PCI_DOMAINS 2402 bool 2403 2404source "drivers/pci/Kconfig" 2405 2406source "drivers/pci/pcie/Kconfig" 2407 2408# 2409# ISA support is now enabled via select. Too many systems still have the one 2410# or other ISA chip on the board that users don't know about so don't expect 2411# users to choose the right thing ... 2412# 2413config ISA 2414 bool 2415 2416config EISA 2417 bool "EISA support" 2418 depends on HW_HAS_EISA 2419 select ISA 2420 select GENERIC_ISA_DMA 2421 ---help--- 2422 The Extended Industry Standard Architecture (EISA) bus was 2423 developed as an open alternative to the IBM MicroChannel bus. 2424 2425 The EISA bus provided some of the features of the IBM MicroChannel 2426 bus while maintaining backward compatibility with cards made for 2427 the older ISA bus. The EISA bus saw limited use between 1988 and 2428 1995 when it was made obsolete by the PCI bus. 2429 2430 Say Y here if you are building a kernel for an EISA-based machine. 2431 2432 Otherwise, say N. 2433 2434source "drivers/eisa/Kconfig" 2435 2436config TC 2437 bool "TURBOchannel support" 2438 depends on MACH_DECSTATION 2439 help 2440 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 2441 processors. TURBOchannel programming specifications are available 2442 at: 2443 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 2444 and: 2445 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 2446 Linux driver support status is documented at: 2447 <http://www.linux-mips.org/wiki/DECstation> 2448 2449config MMU 2450 bool 2451 default y 2452 2453config I8253 2454 bool 2455 select CLKSRC_I8253 2456 select CLKEVT_I8253 2457 select MIPS_EXTERNAL_TIMER 2458 2459config ZONE_DMA 2460 bool 2461 2462config ZONE_DMA32 2463 bool 2464 2465source "drivers/pcmcia/Kconfig" 2466 2467source "drivers/pci/hotplug/Kconfig" 2468 2469config RAPIDIO 2470 bool "RapidIO support" 2471 depends on PCI 2472 default n 2473 help 2474 If you say Y here, the kernel will include drivers and 2475 infrastructure code to support RapidIO interconnect devices. 2476 2477source "drivers/rapidio/Kconfig" 2478 2479endmenu 2480 2481menu "Executable file formats" 2482 2483source "fs/Kconfig.binfmt" 2484 2485config TRAD_SIGNALS 2486 bool 2487 2488config MIPS32_COMPAT 2489 bool "Kernel support for Linux/MIPS 32-bit binary compatibility" 2490 depends on 64BIT 2491 help 2492 Select this option if you want Linux/MIPS 32-bit binary 2493 compatibility. Since all software available for Linux/MIPS is 2494 currently 32-bit you should say Y here. 2495 2496config COMPAT 2497 bool 2498 depends on MIPS32_COMPAT 2499 select ARCH_WANT_OLD_COMPAT_IPC 2500 default y 2501 2502config SYSVIPC_COMPAT 2503 bool 2504 depends on COMPAT && SYSVIPC 2505 default y 2506 2507config MIPS32_O32 2508 bool "Kernel support for o32 binaries" 2509 depends on MIPS32_COMPAT 2510 help 2511 Select this option if you want to run o32 binaries. These are pure 2512 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 2513 existing binaries are in this format. 2514 2515 If unsure, say Y. 2516 2517config MIPS32_N32 2518 bool "Kernel support for n32 binaries" 2519 depends on MIPS32_COMPAT 2520 help 2521 Select this option if you want to run n32 binaries. These are 2522 64-bit binaries using 32-bit quantities for addressing and certain 2523 data that would normally be 64-bit. They are used in special 2524 cases. 2525 2526 If unsure, say N. 2527 2528config BINFMT_ELF32 2529 bool 2530 default y if MIPS32_O32 || MIPS32_N32 2531 2532endmenu 2533 2534menu "Power management options" 2535 2536config ARCH_HIBERNATION_POSSIBLE 2537 def_bool y 2538 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 2539 2540config ARCH_SUSPEND_POSSIBLE 2541 def_bool y 2542 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 2543 2544source "kernel/power/Kconfig" 2545 2546endmenu 2547 2548config MIPS_EXTERNAL_TIMER 2549 bool 2550 2551if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 2552menu "CPU Power Management" 2553source "drivers/cpufreq/Kconfig" 2554endmenu 2555endif 2556 2557source "net/Kconfig" 2558 2559source "drivers/Kconfig" 2560 2561source "drivers/firmware/Kconfig" 2562 2563source "fs/Kconfig" 2564 2565source "arch/mips/Kconfig.debug" 2566 2567source "security/Kconfig" 2568 2569source "crypto/Kconfig" 2570 2571source "lib/Kconfig" 2572 2573source "arch/mips/kvm/Kconfig" 2574