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 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 NR_CPUS_DEFAULT_2 135 select SYS_SUPPORTS_32BIT_KERNEL 136 select SYS_SUPPORTS_BIG_ENDIAN 137 select SYS_HAS_EARLY_PRINTK 138 select SWAP_IO_SPACE 139 select ARCH_REQUIRE_GPIOLIB 140 select HAVE_CLK 141 help 142 Support for BCM63XX based boards 143 144config MIPS_COBALT 145 bool "Cobalt Server" 146 select CEVT_R4K 147 select CSRC_R4K 148 select CEVT_GT641XX 149 select DMA_NONCOHERENT 150 select HW_HAS_PCI 151 select I8253 152 select I8259 153 select IRQ_CPU 154 select IRQ_GT641XX 155 select PCI_GT64XXX_PCI0 156 select PCI 157 select SYS_HAS_CPU_NEVADA 158 select SYS_HAS_EARLY_PRINTK 159 select SYS_SUPPORTS_32BIT_KERNEL 160 select SYS_SUPPORTS_64BIT_KERNEL 161 select SYS_SUPPORTS_LITTLE_ENDIAN 162 163config MACH_DECSTATION 164 bool "DECstations" 165 select BOOT_ELF32 166 select CEVT_DS1287 167 select CEVT_R4K 168 select CSRC_IOASIC 169 select CSRC_R4K 170 select CPU_DADDI_WORKAROUNDS if 64BIT 171 select CPU_R4000_WORKAROUNDS if 64BIT 172 select CPU_R4400_WORKAROUNDS if 64BIT 173 select DMA_NONCOHERENT 174 select NO_IOPORT 175 select IRQ_CPU 176 select SYS_HAS_CPU_R3000 177 select SYS_HAS_CPU_R4X00 178 select SYS_SUPPORTS_32BIT_KERNEL 179 select SYS_SUPPORTS_64BIT_KERNEL 180 select SYS_SUPPORTS_LITTLE_ENDIAN 181 select SYS_SUPPORTS_128HZ 182 select SYS_SUPPORTS_256HZ 183 select SYS_SUPPORTS_1024HZ 184 help 185 This enables support for DEC's MIPS based workstations. For details 186 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 187 DECstation porting pages on <http://decstation.unix-ag.org/>. 188 189 If you have one of the following DECstation Models you definitely 190 want to choose R4xx0 for the CPU Type: 191 192 DECstation 5000/50 193 DECstation 5000/150 194 DECstation 5000/260 195 DECsystem 5900/260 196 197 otherwise choose R3000. 198 199config MACH_JAZZ 200 bool "Jazz family of machines" 201 select FW_ARC 202 select FW_ARC32 203 select ARCH_MAY_HAVE_PC_FDC 204 select CEVT_R4K 205 select CSRC_R4K 206 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 207 select GENERIC_ISA_DMA 208 select HAVE_PCSPKR_PLATFORM 209 select IRQ_CPU 210 select I8253 211 select I8259 212 select ISA 213 select SYS_HAS_CPU_R4X00 214 select SYS_SUPPORTS_32BIT_KERNEL 215 select SYS_SUPPORTS_64BIT_KERNEL 216 select SYS_SUPPORTS_100HZ 217 help 218 This a family of machines based on the MIPS R4030 chipset which was 219 used by several vendors to build RISC/os and Windows NT workstations. 220 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 221 Olivetti M700-10 workstations. 222 223config MACH_JZ4740 224 bool "Ingenic JZ4740 based machines" 225 select SYS_HAS_CPU_MIPS32_R1 226 select SYS_SUPPORTS_32BIT_KERNEL 227 select SYS_SUPPORTS_LITTLE_ENDIAN 228 select SYS_SUPPORTS_ZBOOT_UART16550 229 select DMA_NONCOHERENT 230 select IRQ_CPU 231 select ARCH_REQUIRE_GPIOLIB 232 select SYS_HAS_EARLY_PRINTK 233 select HAVE_PWM 234 select HAVE_CLK 235 select GENERIC_IRQ_CHIP 236 237config LANTIQ 238 bool "Lantiq based platforms" 239 select DMA_NONCOHERENT 240 select IRQ_CPU 241 select CEVT_R4K 242 select CSRC_R4K 243 select SYS_HAS_CPU_MIPS32_R1 244 select SYS_HAS_CPU_MIPS32_R2 245 select SYS_SUPPORTS_BIG_ENDIAN 246 select SYS_SUPPORTS_32BIT_KERNEL 247 select SYS_SUPPORTS_MULTITHREADING 248 select SYS_HAS_EARLY_PRINTK 249 select ARCH_REQUIRE_GPIOLIB 250 select SWAP_IO_SPACE 251 select BOOT_RAW 252 select HAVE_MACH_CLKDEV 253 select CLKDEV_LOOKUP 254 select USE_OF 255 select PINCTRL 256 select PINCTRL_LANTIQ 257 258config LASAT 259 bool "LASAT Networks platforms" 260 select CEVT_R4K 261 select CSRC_R4K 262 select DMA_NONCOHERENT 263 select SYS_HAS_EARLY_PRINTK 264 select HW_HAS_PCI 265 select IRQ_CPU 266 select PCI_GT64XXX_PCI0 267 select MIPS_NILE4 268 select R5000_CPU_SCACHE 269 select SYS_HAS_CPU_R5000 270 select SYS_SUPPORTS_32BIT_KERNEL 271 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 272 select SYS_SUPPORTS_LITTLE_ENDIAN 273 274config MACH_LOONGSON 275 bool "Loongson family of machines" 276 select SYS_SUPPORTS_ZBOOT 277 help 278 This enables the support of Loongson family of machines. 279 280 Loongson is a family of general-purpose MIPS-compatible CPUs. 281 developed at Institute of Computing Technology (ICT), 282 Chinese Academy of Sciences (CAS) in the People's Republic 283 of China. The chief architect is Professor Weiwu Hu. 284 285config MACH_LOONGSON1 286 bool "Loongson 1 family of machines" 287 select SYS_SUPPORTS_ZBOOT 288 help 289 This enables support for the Loongson 1 based machines. 290 291 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by 292 the ICT (Institute of Computing Technology) and the Chinese Academy 293 of Sciences. 294 295config MIPS_MALTA 296 bool "MIPS Malta board" 297 select ARCH_MAY_HAVE_PC_FDC 298 select BOOT_ELF32 299 select BOOT_RAW 300 select CEVT_R4K 301 select CSRC_R4K 302 select CSRC_GIC 303 select DMA_NONCOHERENT 304 select GENERIC_ISA_DMA 305 select HAVE_PCSPKR_PLATFORM 306 select IRQ_CPU 307 select IRQ_GIC 308 select HW_HAS_PCI 309 select I8253 310 select I8259 311 select MIPS_BONITO64 312 select MIPS_CPU_SCACHE 313 select PCI_GT64XXX_PCI0 314 select MIPS_MSC 315 select SWAP_IO_SPACE 316 select SYS_HAS_CPU_MIPS32_R1 317 select SYS_HAS_CPU_MIPS32_R2 318 select SYS_HAS_CPU_MIPS64_R1 319 select SYS_HAS_CPU_MIPS64_R2 320 select SYS_HAS_CPU_NEVADA 321 select SYS_HAS_CPU_RM7000 322 select SYS_HAS_EARLY_PRINTK 323 select SYS_SUPPORTS_32BIT_KERNEL 324 select SYS_SUPPORTS_64BIT_KERNEL 325 select SYS_SUPPORTS_BIG_ENDIAN 326 select SYS_SUPPORTS_LITTLE_ENDIAN 327 select SYS_SUPPORTS_MIPS_CMP 328 select SYS_SUPPORTS_MULTITHREADING 329 select SYS_SUPPORTS_SMARTMIPS 330 select SYS_SUPPORTS_ZBOOT 331 help 332 This enables support for the MIPS Technologies Malta evaluation 333 board. 334 335config MIPS_SEAD3 336 bool "MIPS SEAD3 board" 337 select BOOT_ELF32 338 select BOOT_RAW 339 select CEVT_R4K 340 select CSRC_R4K 341 select CSRC_GIC 342 select CPU_MIPSR2_IRQ_VI 343 select CPU_MIPSR2_IRQ_EI 344 select DMA_NONCOHERENT 345 select IRQ_CPU 346 select IRQ_GIC 347 select MIPS_MSC 348 select SYS_HAS_CPU_MIPS32_R1 349 select SYS_HAS_CPU_MIPS32_R2 350 select SYS_HAS_CPU_MIPS64_R1 351 select SYS_HAS_EARLY_PRINTK 352 select SYS_SUPPORTS_32BIT_KERNEL 353 select SYS_SUPPORTS_64BIT_KERNEL 354 select SYS_SUPPORTS_BIG_ENDIAN 355 select SYS_SUPPORTS_LITTLE_ENDIAN 356 select SYS_SUPPORTS_SMARTMIPS 357 select SYS_SUPPORTS_MICROMIPS 358 select USB_ARCH_HAS_EHCI 359 select USB_EHCI_BIG_ENDIAN_DESC 360 select USB_EHCI_BIG_ENDIAN_MMIO 361 select USE_OF 362 help 363 This enables support for the MIPS Technologies SEAD3 evaluation 364 board. 365 366config NEC_MARKEINS 367 bool "NEC EMMA2RH Mark-eins board" 368 select SOC_EMMA2RH 369 select HW_HAS_PCI 370 help 371 This enables support for the NEC Electronics Mark-eins boards. 372 373config MACH_VR41XX 374 bool "NEC VR4100 series based machines" 375 select CEVT_R4K 376 select CSRC_R4K 377 select SYS_HAS_CPU_VR41XX 378 select ARCH_REQUIRE_GPIOLIB 379 380config NXP_STB220 381 bool "NXP STB220 board" 382 select SOC_PNX833X 383 help 384 Support for NXP Semiconductors STB220 Development Board. 385 386config NXP_STB225 387 bool "NXP 225 board" 388 select SOC_PNX833X 389 select SOC_PNX8335 390 help 391 Support for NXP Semiconductors STB225 Development Board. 392 393config PMC_MSP 394 bool "PMC-Sierra MSP chipsets" 395 select CEVT_R4K 396 select CSRC_R4K 397 select DMA_NONCOHERENT 398 select SWAP_IO_SPACE 399 select NO_EXCEPT_FILL 400 select BOOT_RAW 401 select SYS_HAS_CPU_MIPS32_R1 402 select SYS_HAS_CPU_MIPS32_R2 403 select SYS_SUPPORTS_32BIT_KERNEL 404 select SYS_SUPPORTS_BIG_ENDIAN 405 select IRQ_CPU 406 select SERIAL_8250 407 select SERIAL_8250_CONSOLE 408 select USB_EHCI_BIG_ENDIAN_MMIO 409 select USB_EHCI_BIG_ENDIAN_DESC 410 help 411 This adds support for the PMC-Sierra family of Multi-Service 412 Processor System-On-A-Chips. These parts include a number 413 of integrated peripherals, interfaces and DSPs in addition to 414 a variety of MIPS cores. 415 416config POWERTV 417 bool "Cisco PowerTV" 418 select BOOT_ELF32 419 select CEVT_R4K 420 select CPU_MIPSR2_IRQ_VI 421 select CPU_MIPSR2_IRQ_EI 422 select CSRC_POWERTV 423 select DMA_NONCOHERENT 424 select HW_HAS_PCI 425 select SYS_HAS_CPU_MIPS32_R2 426 select SYS_SUPPORTS_32BIT_KERNEL 427 select SYS_SUPPORTS_BIG_ENDIAN 428 select SYS_SUPPORTS_HIGHMEM 429 select USB_OHCI_LITTLE_ENDIAN 430 help 431 This enables support for the Cisco PowerTV Platform. 432 433config RALINK 434 bool "Ralink based machines" 435 select CEVT_R4K 436 select CSRC_R4K 437 select BOOT_RAW 438 select DMA_NONCOHERENT 439 select IRQ_CPU 440 select USE_OF 441 select SYS_HAS_CPU_MIPS32_R1 442 select SYS_HAS_CPU_MIPS32_R2 443 select SYS_SUPPORTS_32BIT_KERNEL 444 select SYS_SUPPORTS_LITTLE_ENDIAN 445 select SYS_HAS_EARLY_PRINTK 446 select HAVE_MACH_CLKDEV 447 select CLKDEV_LOOKUP 448 449config SGI_IP22 450 bool "SGI IP22 (Indy/Indigo2)" 451 select FW_ARC 452 select FW_ARC32 453 select BOOT_ELF32 454 select CEVT_R4K 455 select CSRC_R4K 456 select DEFAULT_SGI_PARTITION 457 select DMA_NONCOHERENT 458 select HW_HAS_EISA 459 select I8253 460 select I8259 461 select IP22_CPU_SCACHE 462 select IRQ_CPU 463 select GENERIC_ISA_DMA_SUPPORT_BROKEN 464 select SGI_HAS_I8042 465 select SGI_HAS_INDYDOG 466 select SGI_HAS_HAL2 467 select SGI_HAS_SEEQ 468 select SGI_HAS_WD93 469 select SGI_HAS_ZILOG 470 select SWAP_IO_SPACE 471 select SYS_HAS_CPU_R4X00 472 select SYS_HAS_CPU_R5000 473 # 474 # Disable EARLY_PRINTK for now since it leads to overwritten prom 475 # memory during early boot on some machines. 476 # 477 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 478 # for a more details discussion 479 # 480 # select SYS_HAS_EARLY_PRINTK 481 select SYS_SUPPORTS_32BIT_KERNEL 482 select SYS_SUPPORTS_64BIT_KERNEL 483 select SYS_SUPPORTS_BIG_ENDIAN 484 help 485 This are the SGI Indy, Challenge S and Indigo2, as well as certain 486 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 487 that runs on these, say Y here. 488 489config SGI_IP27 490 bool "SGI IP27 (Origin200/2000)" 491 select FW_ARC 492 select FW_ARC64 493 select BOOT_ELF64 494 select DEFAULT_SGI_PARTITION 495 select DMA_COHERENT 496 select SYS_HAS_EARLY_PRINTK 497 select HW_HAS_PCI 498 select NR_CPUS_DEFAULT_64 499 select SYS_HAS_CPU_R10000 500 select SYS_SUPPORTS_64BIT_KERNEL 501 select SYS_SUPPORTS_BIG_ENDIAN 502 select SYS_SUPPORTS_NUMA 503 select SYS_SUPPORTS_SMP 504 help 505 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 506 workstations. To compile a Linux kernel that runs on these, say Y 507 here. 508 509config SGI_IP28 510 bool "SGI IP28 (Indigo2 R10k)" 511 select FW_ARC 512 select FW_ARC64 513 select BOOT_ELF64 514 select CEVT_R4K 515 select CSRC_R4K 516 select DEFAULT_SGI_PARTITION 517 select DMA_NONCOHERENT 518 select GENERIC_ISA_DMA_SUPPORT_BROKEN 519 select IRQ_CPU 520 select HW_HAS_EISA 521 select I8253 522 select I8259 523 select SGI_HAS_I8042 524 select SGI_HAS_INDYDOG 525 select SGI_HAS_HAL2 526 select SGI_HAS_SEEQ 527 select SGI_HAS_WD93 528 select SGI_HAS_ZILOG 529 select SWAP_IO_SPACE 530 select SYS_HAS_CPU_R10000 531 # 532 # Disable EARLY_PRINTK for now since it leads to overwritten prom 533 # memory during early boot on some machines. 534 # 535 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 536 # for a more details discussion 537 # 538 # select SYS_HAS_EARLY_PRINTK 539 select SYS_SUPPORTS_64BIT_KERNEL 540 select SYS_SUPPORTS_BIG_ENDIAN 541 help 542 This is the SGI Indigo2 with R10000 processor. To compile a Linux 543 kernel that runs on these, say Y here. 544 545config SGI_IP32 546 bool "SGI IP32 (O2)" 547 select FW_ARC 548 select FW_ARC32 549 select BOOT_ELF32 550 select CEVT_R4K 551 select CSRC_R4K 552 select DMA_NONCOHERENT 553 select HW_HAS_PCI 554 select IRQ_CPU 555 select R5000_CPU_SCACHE 556 select RM7000_CPU_SCACHE 557 select SYS_HAS_CPU_R5000 558 select SYS_HAS_CPU_R10000 if BROKEN 559 select SYS_HAS_CPU_RM7000 560 select SYS_HAS_CPU_NEVADA 561 select SYS_SUPPORTS_64BIT_KERNEL 562 select SYS_SUPPORTS_BIG_ENDIAN 563 help 564 If you want this kernel to run on SGI O2 workstation, say Y here. 565 566config SIBYTE_CRHINE 567 bool "Sibyte BCM91120C-CRhine" 568 select BOOT_ELF32 569 select DMA_COHERENT 570 select SIBYTE_BCM1120 571 select SWAP_IO_SPACE 572 select SYS_HAS_CPU_SB1 573 select SYS_SUPPORTS_BIG_ENDIAN 574 select SYS_SUPPORTS_LITTLE_ENDIAN 575 576config SIBYTE_CARMEL 577 bool "Sibyte BCM91120x-Carmel" 578 select BOOT_ELF32 579 select DMA_COHERENT 580 select SIBYTE_BCM1120 581 select SWAP_IO_SPACE 582 select SYS_HAS_CPU_SB1 583 select SYS_SUPPORTS_BIG_ENDIAN 584 select SYS_SUPPORTS_LITTLE_ENDIAN 585 586config SIBYTE_CRHONE 587 bool "Sibyte BCM91125C-CRhone" 588 select BOOT_ELF32 589 select DMA_COHERENT 590 select SIBYTE_BCM1125 591 select SWAP_IO_SPACE 592 select SYS_HAS_CPU_SB1 593 select SYS_SUPPORTS_BIG_ENDIAN 594 select SYS_SUPPORTS_HIGHMEM 595 select SYS_SUPPORTS_LITTLE_ENDIAN 596 597config SIBYTE_RHONE 598 bool "Sibyte BCM91125E-Rhone" 599 select BOOT_ELF32 600 select DMA_COHERENT 601 select SIBYTE_BCM1125H 602 select SWAP_IO_SPACE 603 select SYS_HAS_CPU_SB1 604 select SYS_SUPPORTS_BIG_ENDIAN 605 select SYS_SUPPORTS_LITTLE_ENDIAN 606 607config SIBYTE_SWARM 608 bool "Sibyte BCM91250A-SWARM" 609 select BOOT_ELF32 610 select DMA_COHERENT 611 select HAVE_PATA_PLATFORM 612 select NR_CPUS_DEFAULT_2 613 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 NR_CPUS_DEFAULT_2 627 select SIBYTE_SB1250 628 select SWAP_IO_SPACE 629 select SYS_HAS_CPU_SB1 630 select SYS_SUPPORTS_BIG_ENDIAN 631 select SYS_SUPPORTS_HIGHMEM 632 select SYS_SUPPORTS_LITTLE_ENDIAN 633 634config SIBYTE_SENTOSA 635 bool "Sibyte BCM91250E-Sentosa" 636 select BOOT_ELF32 637 select DMA_COHERENT 638 select NR_CPUS_DEFAULT_2 639 select SIBYTE_SB1250 640 select SWAP_IO_SPACE 641 select SYS_HAS_CPU_SB1 642 select SYS_SUPPORTS_BIG_ENDIAN 643 select SYS_SUPPORTS_LITTLE_ENDIAN 644 645config SIBYTE_BIGSUR 646 bool "Sibyte BCM91480B-BigSur" 647 select BOOT_ELF32 648 select DMA_COHERENT 649 select NR_CPUS_DEFAULT_4 650 select SIBYTE_BCM1x80 651 select SWAP_IO_SPACE 652 select SYS_HAS_CPU_SB1 653 select SYS_SUPPORTS_BIG_ENDIAN 654 select SYS_SUPPORTS_HIGHMEM 655 select SYS_SUPPORTS_LITTLE_ENDIAN 656 select ZONE_DMA32 if 64BIT 657 658config SNI_RM 659 bool "SNI RM200/300/400" 660 select FW_ARC if CPU_LITTLE_ENDIAN 661 select FW_ARC32 if CPU_LITTLE_ENDIAN 662 select FW_SNIPROM if CPU_BIG_ENDIAN 663 select ARCH_MAY_HAVE_PC_FDC 664 select BOOT_ELF32 665 select CEVT_R4K 666 select CSRC_R4K 667 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 668 select DMA_NONCOHERENT 669 select GENERIC_ISA_DMA 670 select HAVE_PCSPKR_PLATFORM 671 select HW_HAS_EISA 672 select HW_HAS_PCI 673 select IRQ_CPU 674 select I8253 675 select I8259 676 select ISA 677 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 678 select SYS_HAS_CPU_R4X00 679 select SYS_HAS_CPU_R5000 680 select SYS_HAS_CPU_R10000 681 select R5000_CPU_SCACHE 682 select SYS_HAS_EARLY_PRINTK 683 select SYS_SUPPORTS_32BIT_KERNEL 684 select SYS_SUPPORTS_64BIT_KERNEL 685 select SYS_SUPPORTS_BIG_ENDIAN 686 select SYS_SUPPORTS_HIGHMEM 687 select SYS_SUPPORTS_LITTLE_ENDIAN 688 help 689 The SNI RM200/300/400 are MIPS-based machines manufactured by 690 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 691 Technology and now in turn merged with Fujitsu. Say Y here to 692 support this machine type. 693 694config MACH_TX39XX 695 bool "Toshiba TX39 series based machines" 696 697config MACH_TX49XX 698 bool "Toshiba TX49 series based machines" 699 700config MIKROTIK_RB532 701 bool "Mikrotik RB532 boards" 702 select CEVT_R4K 703 select CSRC_R4K 704 select DMA_NONCOHERENT 705 select HW_HAS_PCI 706 select IRQ_CPU 707 select SYS_HAS_CPU_MIPS32_R1 708 select SYS_SUPPORTS_32BIT_KERNEL 709 select SYS_SUPPORTS_LITTLE_ENDIAN 710 select SWAP_IO_SPACE 711 select BOOT_RAW 712 select ARCH_REQUIRE_GPIOLIB 713 help 714 Support the Mikrotik(tm) RouterBoard 532 series, 715 based on the IDT RC32434 SoC. 716 717config CAVIUM_OCTEON_SOC 718 bool "Cavium Networks Octeon SoC based boards" 719 select CEVT_R4K 720 select 64BIT_PHYS_ADDR 721 select DMA_COHERENT 722 select SYS_SUPPORTS_64BIT_KERNEL 723 select SYS_SUPPORTS_BIG_ENDIAN 724 select EDAC_SUPPORT 725 select SYS_SUPPORTS_HOTPLUG_CPU 726 select SYS_HAS_EARLY_PRINTK 727 select SYS_HAS_CPU_CAVIUM_OCTEON 728 select SWAP_IO_SPACE 729 select HW_HAS_PCI 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 ZONE_DMA32 if 64BIT 766 select SYNC_R4K 767 select SYS_HAS_EARLY_PRINTK 768 select USB_ARCH_HAS_OHCI if USB_SUPPORT 769 select USB_ARCH_HAS_EHCI if USB_SUPPORT 770 select SYS_SUPPORTS_ZBOOT 771 select SYS_SUPPORTS_ZBOOT_UART16550 772 help 773 Support for systems based on Netlogic XLR and XLS processors. 774 Say Y here if you have a XLR or XLS based board. 775 776config NLM_XLP_BOARD 777 bool "Netlogic XLP based systems" 778 select BOOT_ELF32 779 select NLM_COMMON 780 select SYS_HAS_CPU_XLP 781 select SYS_SUPPORTS_SMP 782 select HW_HAS_PCI 783 select SYS_SUPPORTS_32BIT_KERNEL 784 select SYS_SUPPORTS_64BIT_KERNEL 785 select 64BIT_PHYS_ADDR 786 select SYS_SUPPORTS_BIG_ENDIAN 787 select SYS_SUPPORTS_LITTLE_ENDIAN 788 select SYS_SUPPORTS_HIGHMEM 789 select DMA_COHERENT 790 select NR_CPUS_DEFAULT_32 791 select CEVT_R4K 792 select CSRC_R4K 793 select IRQ_CPU 794 select ZONE_DMA32 if 64BIT 795 select SYNC_R4K 796 select SYS_HAS_EARLY_PRINTK 797 select USE_OF 798 select SYS_SUPPORTS_ZBOOT 799 select SYS_SUPPORTS_ZBOOT_UART16550 800 help 801 This board is based on Netlogic XLP Processor. 802 Say Y here if you have a XLP based board. 803 804endchoice 805 806source "arch/mips/alchemy/Kconfig" 807source "arch/mips/ath79/Kconfig" 808source "arch/mips/bcm47xx/Kconfig" 809source "arch/mips/bcm63xx/Kconfig" 810source "arch/mips/jazz/Kconfig" 811source "arch/mips/jz4740/Kconfig" 812source "arch/mips/lantiq/Kconfig" 813source "arch/mips/lasat/Kconfig" 814source "arch/mips/pmcs-msp71xx/Kconfig" 815source "arch/mips/powertv/Kconfig" 816source "arch/mips/ralink/Kconfig" 817source "arch/mips/sgi-ip27/Kconfig" 818source "arch/mips/sibyte/Kconfig" 819source "arch/mips/txx9/Kconfig" 820source "arch/mips/vr41xx/Kconfig" 821source "arch/mips/cavium-octeon/Kconfig" 822source "arch/mips/loongson/Kconfig" 823source "arch/mips/loongson1/Kconfig" 824source "arch/mips/netlogic/Kconfig" 825 826endmenu 827 828config RWSEM_GENERIC_SPINLOCK 829 bool 830 default y 831 832config RWSEM_XCHGADD_ALGORITHM 833 bool 834 835config ARCH_HAS_ILOG2_U32 836 bool 837 default n 838 839config ARCH_HAS_ILOG2_U64 840 bool 841 default n 842 843config GENERIC_HWEIGHT 844 bool 845 default y 846 847config GENERIC_CALIBRATE_DELAY 848 bool 849 default y 850 851config SCHED_OMIT_FRAME_POINTER 852 bool 853 default y 854 855# 856# Select some configuration options automatically based on user selections. 857# 858config FW_ARC 859 bool 860 861config ARCH_MAY_HAVE_PC_FDC 862 bool 863 864config BOOT_RAW 865 bool 866 867config CEVT_BCM1480 868 bool 869 870config CEVT_DS1287 871 bool 872 873config CEVT_GT641XX 874 bool 875 876config CEVT_R4K 877 bool 878 879config CEVT_GIC 880 bool 881 882config CEVT_SB1250 883 bool 884 885config CEVT_TXX9 886 bool 887 888config CSRC_BCM1480 889 bool 890 891config CSRC_IOASIC 892 bool 893 894config CSRC_POWERTV 895 bool 896 897config CSRC_R4K 898 bool 899 900config CSRC_GIC 901 bool 902 903config CSRC_SB1250 904 bool 905 906config GPIO_TXX9 907 select ARCH_REQUIRE_GPIOLIB 908 bool 909 910config FW_CFE 911 bool 912 913config ARCH_DMA_ADDR_T_64BIT 914 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT 915 916config DMA_COHERENT 917 bool 918 919config DMA_NONCOHERENT 920 bool 921 select NEED_DMA_MAP_STATE 922 923config NEED_DMA_MAP_STATE 924 bool 925 926config SYS_HAS_EARLY_PRINTK 927 bool 928 929config HOTPLUG_CPU 930 bool "Support for hot-pluggable CPUs" 931 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 932 help 933 Say Y here to allow turning CPUs off and on. CPUs can be 934 controlled through /sys/devices/system/cpu. 935 (Note: power management support will enable this option 936 automatically on SMP systems. ) 937 Say N if you want to disable CPU hotplug. 938 939config SYS_SUPPORTS_HOTPLUG_CPU 940 bool 941 942config I8259 943 bool 944 945config MIPS_BONITO64 946 bool 947 948config MIPS_MSC 949 bool 950 951config MIPS_NILE4 952 bool 953 954config SYNC_R4K 955 bool 956 957config MIPS_MACHINE 958 def_bool n 959 960config NO_IOPORT 961 def_bool n 962 963config GENERIC_ISA_DMA 964 bool 965 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 966 select ISA_DMA_API 967 968config GENERIC_ISA_DMA_SUPPORT_BROKEN 969 bool 970 select GENERIC_ISA_DMA 971 972config ISA_DMA_API 973 bool 974 975config HOLES_IN_ZONE 976 bool 977 978# 979# Endianness selection. Sufficiently obscure so many users don't know what to 980# answer,so we try hard to limit the available choices. Also the use of a 981# choice statement should be more obvious to the user. 982# 983choice 984 prompt "Endianness selection" 985 help 986 Some MIPS machines can be configured for either little or big endian 987 byte order. These modes require different kernels and a different 988 Linux distribution. In general there is one preferred byteorder for a 989 particular system but some systems are just as commonly used in the 990 one or the other endianness. 991 992config CPU_BIG_ENDIAN 993 bool "Big endian" 994 depends on SYS_SUPPORTS_BIG_ENDIAN 995 996config CPU_LITTLE_ENDIAN 997 bool "Little endian" 998 depends on SYS_SUPPORTS_LITTLE_ENDIAN 999 1000endchoice 1001 1002config EXPORT_UASM 1003 bool 1004 1005config SYS_SUPPORTS_APM_EMULATION 1006 bool 1007 1008config SYS_SUPPORTS_BIG_ENDIAN 1009 bool 1010 1011config SYS_SUPPORTS_LITTLE_ENDIAN 1012 bool 1013 1014config SYS_SUPPORTS_HUGETLBFS 1015 bool 1016 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT 1017 default y 1018 1019config MIPS_HUGE_TLB_SUPPORT 1020 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1021 1022config IRQ_CPU 1023 bool 1024 1025config IRQ_CPU_RM7K 1026 bool 1027 1028config IRQ_MSP_SLP 1029 bool 1030 1031config IRQ_MSP_CIC 1032 bool 1033 1034config IRQ_TXX9 1035 bool 1036 1037config IRQ_GT641XX 1038 bool 1039 1040config IRQ_GIC 1041 bool 1042 1043config PCI_GT64XXX_PCI0 1044 bool 1045 1046config NO_EXCEPT_FILL 1047 bool 1048 1049config SOC_EMMA2RH 1050 bool 1051 select CEVT_R4K 1052 select CSRC_R4K 1053 select DMA_NONCOHERENT 1054 select IRQ_CPU 1055 select SWAP_IO_SPACE 1056 select SYS_HAS_CPU_R5500 1057 select SYS_SUPPORTS_32BIT_KERNEL 1058 select SYS_SUPPORTS_64BIT_KERNEL 1059 select SYS_SUPPORTS_BIG_ENDIAN 1060 1061config SOC_PNX833X 1062 bool 1063 select CEVT_R4K 1064 select CSRC_R4K 1065 select IRQ_CPU 1066 select DMA_NONCOHERENT 1067 select SYS_HAS_CPU_MIPS32_R2 1068 select SYS_SUPPORTS_32BIT_KERNEL 1069 select SYS_SUPPORTS_LITTLE_ENDIAN 1070 select SYS_SUPPORTS_BIG_ENDIAN 1071 select CPU_MIPSR2_IRQ_VI 1072 1073config SOC_PNX8335 1074 bool 1075 select SOC_PNX833X 1076 1077config SWAP_IO_SPACE 1078 bool 1079 1080config SGI_HAS_INDYDOG 1081 bool 1082 1083config SGI_HAS_HAL2 1084 bool 1085 1086config SGI_HAS_SEEQ 1087 bool 1088 1089config SGI_HAS_WD93 1090 bool 1091 1092config SGI_HAS_ZILOG 1093 bool 1094 1095config SGI_HAS_I8042 1096 bool 1097 1098config DEFAULT_SGI_PARTITION 1099 bool 1100 1101config FW_ARC32 1102 bool 1103 1104config FW_SNIPROM 1105 bool 1106 1107config BOOT_ELF32 1108 bool 1109 1110config MIPS_L1_CACHE_SHIFT 1111 int 1112 default "4" if MACH_DECSTATION || MIKROTIK_RB532 || PMC_MSP4200_EVAL || SOC_RT288X 1113 default "6" if MIPS_CPU_SCACHE 1114 default "7" if SGI_IP22 || SGI_IP27 || SGI_IP28 || SNI_RM || CPU_CAVIUM_OCTEON 1115 default "5" 1116 1117config HAVE_STD_PC_SERIAL_PORT 1118 bool 1119 1120config ARC_CONSOLE 1121 bool "ARC console support" 1122 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1123 1124config ARC_MEMORY 1125 bool 1126 depends on MACH_JAZZ || SNI_RM || SGI_IP32 1127 default y 1128 1129config ARC_PROMLIB 1130 bool 1131 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 1132 default y 1133 1134config FW_ARC64 1135 bool 1136 1137config BOOT_ELF64 1138 bool 1139 1140menu "CPU selection" 1141 1142choice 1143 prompt "CPU type" 1144 default CPU_R4X00 1145 1146config CPU_LOONGSON2E 1147 bool "Loongson 2E" 1148 depends on SYS_HAS_CPU_LOONGSON2E 1149 select CPU_LOONGSON2 1150 help 1151 The Loongson 2E processor implements the MIPS III instruction set 1152 with many extensions. 1153 1154 It has an internal FPGA northbridge, which is compatible to 1155 bonito64. 1156 1157config CPU_LOONGSON2F 1158 bool "Loongson 2F" 1159 depends on SYS_HAS_CPU_LOONGSON2F 1160 select CPU_LOONGSON2 1161 select ARCH_REQUIRE_GPIOLIB 1162 help 1163 The Loongson 2F processor implements the MIPS III instruction set 1164 with many extensions. 1165 1166 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1167 have a similar programming interface with FPGA northbridge used in 1168 Loongson2E. 1169 1170config CPU_LOONGSON1B 1171 bool "Loongson 1B" 1172 depends on SYS_HAS_CPU_LOONGSON1B 1173 select CPU_LOONGSON1 1174 help 1175 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1176 release 2 instruction set. 1177 1178config CPU_MIPS32_R1 1179 bool "MIPS32 Release 1" 1180 depends on SYS_HAS_CPU_MIPS32_R1 1181 select CPU_HAS_PREFETCH 1182 select CPU_SUPPORTS_32BIT_KERNEL 1183 select CPU_SUPPORTS_HIGHMEM 1184 help 1185 Choose this option to build a kernel for release 1 or later of the 1186 MIPS32 architecture. Most modern embedded systems with a 32-bit 1187 MIPS processor are based on a MIPS32 processor. If you know the 1188 specific type of processor in your system, choose those that one 1189 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1190 Release 2 of the MIPS32 architecture is available since several 1191 years so chances are you even have a MIPS32 Release 2 processor 1192 in which case you should choose CPU_MIPS32_R2 instead for better 1193 performance. 1194 1195config CPU_MIPS32_R2 1196 bool "MIPS32 Release 2" 1197 depends on SYS_HAS_CPU_MIPS32_R2 1198 select CPU_HAS_PREFETCH 1199 select CPU_SUPPORTS_32BIT_KERNEL 1200 select CPU_SUPPORTS_HIGHMEM 1201 select HAVE_KVM 1202 help 1203 Choose this option to build a kernel for release 2 or later of the 1204 MIPS32 architecture. Most modern embedded systems with a 32-bit 1205 MIPS processor are based on a MIPS32 processor. If you know the 1206 specific type of processor in your system, choose those that one 1207 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1208 1209config CPU_MIPS64_R1 1210 bool "MIPS64 Release 1" 1211 depends on SYS_HAS_CPU_MIPS64_R1 1212 select CPU_HAS_PREFETCH 1213 select CPU_SUPPORTS_32BIT_KERNEL 1214 select CPU_SUPPORTS_64BIT_KERNEL 1215 select CPU_SUPPORTS_HIGHMEM 1216 select CPU_SUPPORTS_HUGEPAGES 1217 help 1218 Choose this option to build a kernel for release 1 or later of the 1219 MIPS64 architecture. Many modern embedded systems with a 64-bit 1220 MIPS processor are based on a MIPS64 processor. If you know the 1221 specific type of processor in your system, choose those that one 1222 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1223 Release 2 of the MIPS64 architecture is available since several 1224 years so chances are you even have a MIPS64 Release 2 processor 1225 in which case you should choose CPU_MIPS64_R2 instead for better 1226 performance. 1227 1228config CPU_MIPS64_R2 1229 bool "MIPS64 Release 2" 1230 depends on SYS_HAS_CPU_MIPS64_R2 1231 select CPU_HAS_PREFETCH 1232 select CPU_SUPPORTS_32BIT_KERNEL 1233 select CPU_SUPPORTS_64BIT_KERNEL 1234 select CPU_SUPPORTS_HIGHMEM 1235 select CPU_SUPPORTS_HUGEPAGES 1236 help 1237 Choose this option to build a kernel for release 2 or later of the 1238 MIPS64 architecture. Many modern embedded systems with a 64-bit 1239 MIPS processor are based on a MIPS64 processor. If you know the 1240 specific type of processor in your system, choose those that one 1241 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1242 1243config CPU_R3000 1244 bool "R3000" 1245 depends on SYS_HAS_CPU_R3000 1246 select CPU_HAS_WB 1247 select CPU_SUPPORTS_32BIT_KERNEL 1248 select CPU_SUPPORTS_HIGHMEM 1249 help 1250 Please make sure to pick the right CPU type. Linux/MIPS is not 1251 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1252 *not* work on R4000 machines and vice versa. However, since most 1253 of the supported machines have an R4000 (or similar) CPU, R4x00 1254 might be a safe bet. If the resulting kernel does not work, 1255 try to recompile with R3000. 1256 1257config CPU_TX39XX 1258 bool "R39XX" 1259 depends on SYS_HAS_CPU_TX39XX 1260 select CPU_SUPPORTS_32BIT_KERNEL 1261 1262config CPU_VR41XX 1263 bool "R41xx" 1264 depends on SYS_HAS_CPU_VR41XX 1265 select CPU_SUPPORTS_32BIT_KERNEL 1266 select CPU_SUPPORTS_64BIT_KERNEL 1267 help 1268 The options selects support for the NEC VR4100 series of processors. 1269 Only choose this option if you have one of these processors as a 1270 kernel built with this option will not run on any other type of 1271 processor or vice versa. 1272 1273config CPU_R4300 1274 bool "R4300" 1275 depends on SYS_HAS_CPU_R4300 1276 select CPU_SUPPORTS_32BIT_KERNEL 1277 select CPU_SUPPORTS_64BIT_KERNEL 1278 help 1279 MIPS Technologies R4300-series processors. 1280 1281config CPU_R4X00 1282 bool "R4x00" 1283 depends on SYS_HAS_CPU_R4X00 1284 select CPU_SUPPORTS_32BIT_KERNEL 1285 select CPU_SUPPORTS_64BIT_KERNEL 1286 select CPU_SUPPORTS_HUGEPAGES 1287 help 1288 MIPS Technologies R4000-series processors other than 4300, including 1289 the R4000, R4400, R4600, and 4700. 1290 1291config CPU_TX49XX 1292 bool "R49XX" 1293 depends on SYS_HAS_CPU_TX49XX 1294 select CPU_HAS_PREFETCH 1295 select CPU_SUPPORTS_32BIT_KERNEL 1296 select CPU_SUPPORTS_64BIT_KERNEL 1297 select CPU_SUPPORTS_HUGEPAGES 1298 1299config CPU_R5000 1300 bool "R5000" 1301 depends on SYS_HAS_CPU_R5000 1302 select CPU_SUPPORTS_32BIT_KERNEL 1303 select CPU_SUPPORTS_64BIT_KERNEL 1304 select CPU_SUPPORTS_HUGEPAGES 1305 help 1306 MIPS Technologies R5000-series processors other than the Nevada. 1307 1308config CPU_R5432 1309 bool "R5432" 1310 depends on SYS_HAS_CPU_R5432 1311 select CPU_SUPPORTS_32BIT_KERNEL 1312 select CPU_SUPPORTS_64BIT_KERNEL 1313 select CPU_SUPPORTS_HUGEPAGES 1314 1315config CPU_R5500 1316 bool "R5500" 1317 depends on SYS_HAS_CPU_R5500 1318 select CPU_SUPPORTS_32BIT_KERNEL 1319 select CPU_SUPPORTS_64BIT_KERNEL 1320 select CPU_SUPPORTS_HUGEPAGES 1321 help 1322 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1323 instruction set. 1324 1325config CPU_R6000 1326 bool "R6000" 1327 depends on SYS_HAS_CPU_R6000 1328 select CPU_SUPPORTS_32BIT_KERNEL 1329 help 1330 MIPS Technologies R6000 and R6000A series processors. Note these 1331 processors are extremely rare and the support for them is incomplete. 1332 1333config CPU_NEVADA 1334 bool "RM52xx" 1335 depends on SYS_HAS_CPU_NEVADA 1336 select CPU_SUPPORTS_32BIT_KERNEL 1337 select CPU_SUPPORTS_64BIT_KERNEL 1338 select CPU_SUPPORTS_HUGEPAGES 1339 help 1340 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1341 1342config CPU_R8000 1343 bool "R8000" 1344 depends on SYS_HAS_CPU_R8000 1345 select CPU_HAS_PREFETCH 1346 select CPU_SUPPORTS_64BIT_KERNEL 1347 help 1348 MIPS Technologies R8000 processors. Note these processors are 1349 uncommon and the support for them is incomplete. 1350 1351config CPU_R10000 1352 bool "R10000" 1353 depends on SYS_HAS_CPU_R10000 1354 select CPU_HAS_PREFETCH 1355 select CPU_SUPPORTS_32BIT_KERNEL 1356 select CPU_SUPPORTS_64BIT_KERNEL 1357 select CPU_SUPPORTS_HIGHMEM 1358 select CPU_SUPPORTS_HUGEPAGES 1359 help 1360 MIPS Technologies R10000-series processors. 1361 1362config CPU_RM7000 1363 bool "RM7000" 1364 depends on SYS_HAS_CPU_RM7000 1365 select CPU_HAS_PREFETCH 1366 select CPU_SUPPORTS_32BIT_KERNEL 1367 select CPU_SUPPORTS_64BIT_KERNEL 1368 select CPU_SUPPORTS_HIGHMEM 1369 select CPU_SUPPORTS_HUGEPAGES 1370 1371config CPU_SB1 1372 bool "SB1" 1373 depends on SYS_HAS_CPU_SB1 1374 select CPU_SUPPORTS_32BIT_KERNEL 1375 select CPU_SUPPORTS_64BIT_KERNEL 1376 select CPU_SUPPORTS_HIGHMEM 1377 select CPU_SUPPORTS_HUGEPAGES 1378 select WEAK_ORDERING 1379 1380config CPU_CAVIUM_OCTEON 1381 bool "Cavium Octeon processor" 1382 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1383 select ARCH_SPARSEMEM_ENABLE 1384 select CPU_HAS_PREFETCH 1385 select CPU_SUPPORTS_64BIT_KERNEL 1386 select SYS_SUPPORTS_SMP 1387 select NR_CPUS_DEFAULT_16 1388 select WEAK_ORDERING 1389 select CPU_SUPPORTS_HIGHMEM 1390 select CPU_SUPPORTS_HUGEPAGES 1391 select LIBFDT 1392 select USE_OF 1393 select USB_EHCI_BIG_ENDIAN_MMIO 1394 help 1395 The Cavium Octeon processor is a highly integrated chip containing 1396 many ethernet hardware widgets for networking tasks. The processor 1397 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1398 Full details can be found at http://www.caviumnetworks.com. 1399 1400config CPU_BMIPS3300 1401 bool "BMIPS3300" 1402 depends on SYS_HAS_CPU_BMIPS3300 1403 select CPU_BMIPS 1404 help 1405 Broadcom BMIPS3300 processors. 1406 1407config CPU_BMIPS4350 1408 bool "BMIPS4350" 1409 depends on SYS_HAS_CPU_BMIPS4350 1410 select CPU_BMIPS 1411 select SYS_SUPPORTS_SMP 1412 select SYS_SUPPORTS_HOTPLUG_CPU 1413 help 1414 Broadcom BMIPS4350 ("VIPER") processors. 1415 1416config CPU_BMIPS4380 1417 bool "BMIPS4380" 1418 depends on SYS_HAS_CPU_BMIPS4380 1419 select CPU_BMIPS 1420 select SYS_SUPPORTS_SMP 1421 select SYS_SUPPORTS_HOTPLUG_CPU 1422 help 1423 Broadcom BMIPS4380 processors. 1424 1425config CPU_BMIPS5000 1426 bool "BMIPS5000" 1427 depends on SYS_HAS_CPU_BMIPS5000 1428 select CPU_BMIPS 1429 select CPU_SUPPORTS_HIGHMEM 1430 select MIPS_CPU_SCACHE 1431 select SYS_SUPPORTS_SMP 1432 select SYS_SUPPORTS_HOTPLUG_CPU 1433 help 1434 Broadcom BMIPS5000 processors. 1435 1436config CPU_XLR 1437 bool "Netlogic XLR SoC" 1438 depends on SYS_HAS_CPU_XLR 1439 select CPU_SUPPORTS_32BIT_KERNEL 1440 select CPU_SUPPORTS_64BIT_KERNEL 1441 select CPU_SUPPORTS_HIGHMEM 1442 select CPU_SUPPORTS_HUGEPAGES 1443 select WEAK_ORDERING 1444 select WEAK_REORDERING_BEYOND_LLSC 1445 help 1446 Netlogic Microsystems XLR/XLS processors. 1447 1448config CPU_XLP 1449 bool "Netlogic XLP SoC" 1450 depends on SYS_HAS_CPU_XLP 1451 select CPU_SUPPORTS_32BIT_KERNEL 1452 select CPU_SUPPORTS_64BIT_KERNEL 1453 select CPU_SUPPORTS_HIGHMEM 1454 select WEAK_ORDERING 1455 select WEAK_REORDERING_BEYOND_LLSC 1456 select CPU_HAS_PREFETCH 1457 select CPU_MIPSR2 1458 help 1459 Netlogic Microsystems XLP processors. 1460endchoice 1461 1462if CPU_LOONGSON2F 1463config CPU_NOP_WORKAROUNDS 1464 bool 1465 1466config CPU_JUMP_WORKAROUNDS 1467 bool 1468 1469config CPU_LOONGSON2F_WORKAROUNDS 1470 bool "Loongson 2F Workarounds" 1471 default y 1472 select CPU_NOP_WORKAROUNDS 1473 select CPU_JUMP_WORKAROUNDS 1474 help 1475 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1476 require workarounds. Without workarounds the system may hang 1477 unexpectedly. For more information please refer to the gas 1478 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1479 1480 Loongson 2F03 and later have fixed these issues and no workarounds 1481 are needed. The workarounds have no significant side effect on them 1482 but may decrease the performance of the system so this option should 1483 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1484 systems. 1485 1486 If unsure, please say Y. 1487endif # CPU_LOONGSON2F 1488 1489config SYS_SUPPORTS_ZBOOT 1490 bool 1491 select HAVE_KERNEL_GZIP 1492 select HAVE_KERNEL_BZIP2 1493 select HAVE_KERNEL_LZMA 1494 select HAVE_KERNEL_LZO 1495 1496config SYS_SUPPORTS_ZBOOT_UART16550 1497 bool 1498 select SYS_SUPPORTS_ZBOOT 1499 1500config CPU_LOONGSON2 1501 bool 1502 select CPU_SUPPORTS_32BIT_KERNEL 1503 select CPU_SUPPORTS_64BIT_KERNEL 1504 select CPU_SUPPORTS_HIGHMEM 1505 select CPU_SUPPORTS_HUGEPAGES 1506 1507config CPU_LOONGSON1 1508 bool 1509 select CPU_MIPS32 1510 select CPU_MIPSR2 1511 select CPU_HAS_PREFETCH 1512 select CPU_SUPPORTS_32BIT_KERNEL 1513 select CPU_SUPPORTS_HIGHMEM 1514 1515config CPU_BMIPS 1516 bool 1517 select CPU_MIPS32 1518 select CPU_SUPPORTS_32BIT_KERNEL 1519 select DMA_NONCOHERENT 1520 select IRQ_CPU 1521 select SWAP_IO_SPACE 1522 select WEAK_ORDERING 1523 1524config SYS_HAS_CPU_LOONGSON2E 1525 bool 1526 1527config SYS_HAS_CPU_LOONGSON2F 1528 bool 1529 select CPU_SUPPORTS_CPUFREQ 1530 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1531 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1532 1533config SYS_HAS_CPU_LOONGSON1B 1534 bool 1535 1536config SYS_HAS_CPU_MIPS32_R1 1537 bool 1538 1539config SYS_HAS_CPU_MIPS32_R2 1540 bool 1541 1542config SYS_HAS_CPU_MIPS64_R1 1543 bool 1544 1545config SYS_HAS_CPU_MIPS64_R2 1546 bool 1547 1548config SYS_HAS_CPU_R3000 1549 bool 1550 1551config SYS_HAS_CPU_TX39XX 1552 bool 1553 1554config SYS_HAS_CPU_VR41XX 1555 bool 1556 1557config SYS_HAS_CPU_R4300 1558 bool 1559 1560config SYS_HAS_CPU_R4X00 1561 bool 1562 1563config SYS_HAS_CPU_TX49XX 1564 bool 1565 1566config SYS_HAS_CPU_R5000 1567 bool 1568 1569config SYS_HAS_CPU_R5432 1570 bool 1571 1572config SYS_HAS_CPU_R5500 1573 bool 1574 1575config SYS_HAS_CPU_R6000 1576 bool 1577 1578config SYS_HAS_CPU_NEVADA 1579 bool 1580 1581config SYS_HAS_CPU_R8000 1582 bool 1583 1584config SYS_HAS_CPU_R10000 1585 bool 1586 1587config SYS_HAS_CPU_RM7000 1588 bool 1589 1590config SYS_HAS_CPU_SB1 1591 bool 1592 1593config SYS_HAS_CPU_CAVIUM_OCTEON 1594 bool 1595 1596config SYS_HAS_CPU_BMIPS3300 1597 bool 1598 1599config SYS_HAS_CPU_BMIPS4350 1600 bool 1601 1602config SYS_HAS_CPU_BMIPS4380 1603 bool 1604 1605config SYS_HAS_CPU_BMIPS5000 1606 bool 1607 1608config SYS_HAS_CPU_XLR 1609 bool 1610 1611config SYS_HAS_CPU_XLP 1612 bool 1613 1614# 1615# CPU may reorder R->R, R->W, W->R, W->W 1616# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 1617# 1618config WEAK_ORDERING 1619 bool 1620 1621# 1622# CPU may reorder reads and writes beyond LL/SC 1623# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 1624# 1625config WEAK_REORDERING_BEYOND_LLSC 1626 bool 1627endmenu 1628 1629# 1630# These two indicate any level of the MIPS32 and MIPS64 architecture 1631# 1632config CPU_MIPS32 1633 bool 1634 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 1635 1636config CPU_MIPS64 1637 bool 1638 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 1639 1640# 1641# These two indicate the revision of the architecture, either Release 1 or Release 2 1642# 1643config CPU_MIPSR1 1644 bool 1645 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 1646 1647config CPU_MIPSR2 1648 bool 1649 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 1650 1651config SYS_SUPPORTS_32BIT_KERNEL 1652 bool 1653config SYS_SUPPORTS_64BIT_KERNEL 1654 bool 1655config CPU_SUPPORTS_32BIT_KERNEL 1656 bool 1657config CPU_SUPPORTS_64BIT_KERNEL 1658 bool 1659config CPU_SUPPORTS_CPUFREQ 1660 bool 1661config CPU_SUPPORTS_ADDRWINCFG 1662 bool 1663config CPU_SUPPORTS_HUGEPAGES 1664 bool 1665config CPU_SUPPORTS_UNCACHED_ACCELERATED 1666 bool 1667config MIPS_PGD_C0_CONTEXT 1668 bool 1669 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP 1670 1671# 1672# Set to y for ptrace access to watch registers. 1673# 1674config HARDWARE_WATCHPOINTS 1675 bool 1676 default y if CPU_MIPSR1 || CPU_MIPSR2 1677 1678menu "Kernel type" 1679 1680choice 1681 prompt "Kernel code model" 1682 help 1683 You should only select this option if you have a workload that 1684 actually benefits from 64-bit processing or if your machine has 1685 large memory. You will only be presented a single option in this 1686 menu if your system does not support both 32-bit and 64-bit kernels. 1687 1688config 32BIT 1689 bool "32-bit kernel" 1690 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 1691 select TRAD_SIGNALS 1692 help 1693 Select this option if you want to build a 32-bit kernel. 1694config 64BIT 1695 bool "64-bit kernel" 1696 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 1697 help 1698 Select this option if you want to build a 64-bit kernel. 1699 1700endchoice 1701 1702config KVM_GUEST 1703 bool "KVM Guest Kernel" 1704 depends on BROKEN_ON_SMP 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. As of this writing the exact hardware 2307 interface is strongly in flux, so no good recommendation can be 2308 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