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 depends on BROKEN_ON_SMP 1706 help 1707 Select this option if building a guest kernel for KVM (Trap & Emulate) mode 1708 1709config KVM_HOST_FREQ 1710 int "KVM Host Processor Frequency (MHz)" 1711 depends on KVM_GUEST 1712 default 500 1713 help 1714 Select this option if building a guest kernel for KVM to skip 1715 RTC emulation when determining guest CPU Frequency. Instead, the guest 1716 processor frequency is automatically derived from the host frequency. 1717 1718choice 1719 prompt "Kernel page size" 1720 default PAGE_SIZE_4KB 1721 1722config PAGE_SIZE_4KB 1723 bool "4kB" 1724 depends on !CPU_LOONGSON2 1725 help 1726 This option select the standard 4kB Linux page size. On some 1727 R3000-family processors this is the only available page size. Using 1728 4kB page size will minimize memory consumption and is therefore 1729 recommended for low memory systems. 1730 1731config PAGE_SIZE_8KB 1732 bool "8kB" 1733 depends on CPU_R8000 || CPU_CAVIUM_OCTEON 1734 help 1735 Using 8kB page size will result in higher performance kernel at 1736 the price of higher memory consumption. This option is available 1737 only on R8000 and cnMIPS processors. Note that you will need a 1738 suitable Linux distribution to support this. 1739 1740config PAGE_SIZE_16KB 1741 bool "16kB" 1742 depends on !CPU_R3000 && !CPU_TX39XX 1743 help 1744 Using 16kB page size will result in higher performance kernel at 1745 the price of higher memory consumption. This option is available on 1746 all non-R3000 family processors. Note that you will need a suitable 1747 Linux distribution to support this. 1748 1749config PAGE_SIZE_32KB 1750 bool "32kB" 1751 depends on CPU_CAVIUM_OCTEON 1752 help 1753 Using 32kB page size will result in higher performance kernel at 1754 the price of higher memory consumption. This option is available 1755 only on cnMIPS cores. Note that you will need a suitable Linux 1756 distribution to support this. 1757 1758config PAGE_SIZE_64KB 1759 bool "64kB" 1760 depends on !CPU_R3000 && !CPU_TX39XX 1761 help 1762 Using 64kB page size will result in higher performance kernel at 1763 the price of higher memory consumption. This option is available on 1764 all non-R3000 family processor. Not that at the time of this 1765 writing this option is still high experimental. 1766 1767endchoice 1768 1769config FORCE_MAX_ZONEORDER 1770 int "Maximum zone order" 1771 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB 1772 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB 1773 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB 1774 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB 1775 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB 1776 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB 1777 range 11 64 1778 default "11" 1779 help 1780 The kernel memory allocator divides physically contiguous memory 1781 blocks into "zones", where each zone is a power of two number of 1782 pages. This option selects the largest power of two that the kernel 1783 keeps in the memory allocator. If you need to allocate very large 1784 blocks of physically contiguous memory, then you may need to 1785 increase this value. 1786 1787 This config option is actually maximum order plus one. For example, 1788 a value of 11 means that the largest free memory block is 2^10 pages. 1789 1790 The page size is not necessarily 4KB. Keep this in mind 1791 when choosing a value for this option. 1792 1793config CEVT_GIC 1794 bool "Use GIC global counter for clock events" 1795 depends on IRQ_GIC && !(MIPS_SEAD3 || MIPS_MT_SMTC) 1796 help 1797 Use the GIC global counter for the clock events. The R4K clock 1798 event driver is always present, so if the platform ends up not 1799 detecting a GIC, it will fall back to the R4K timer for the 1800 generation of clock events. 1801 1802config BOARD_SCACHE 1803 bool 1804 1805config IP22_CPU_SCACHE 1806 bool 1807 select BOARD_SCACHE 1808 1809# 1810# Support for a MIPS32 / MIPS64 style S-caches 1811# 1812config MIPS_CPU_SCACHE 1813 bool 1814 select BOARD_SCACHE 1815 1816config R5000_CPU_SCACHE 1817 bool 1818 select BOARD_SCACHE 1819 1820config RM7000_CPU_SCACHE 1821 bool 1822 select BOARD_SCACHE 1823 1824config SIBYTE_DMA_PAGEOPS 1825 bool "Use DMA to clear/copy pages" 1826 depends on CPU_SB1 1827 help 1828 Instead of using the CPU to zero and copy pages, use a Data Mover 1829 channel. These DMA channels are otherwise unused by the standard 1830 SiByte Linux port. Seems to give a small performance benefit. 1831 1832config CPU_HAS_PREFETCH 1833 bool 1834 1835config CPU_GENERIC_DUMP_TLB 1836 bool 1837 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX) 1838 1839config CPU_R4K_FPU 1840 bool 1841 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 1842 1843config CPU_R4K_CACHE_TLB 1844 bool 1845 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 1846 1847choice 1848 prompt "MIPS MT options" 1849 1850config MIPS_MT_DISABLED 1851 bool "Disable multithreading support." 1852 help 1853 Use this option if your workload can't take advantage of 1854 MIPS hardware multithreading support. On systems that don't have 1855 the option of an MT-enabled processor this option will be the only 1856 option in this menu. 1857 1858config MIPS_MT_SMP 1859 bool "Use 1 TC on each available VPE for SMP" 1860 depends on SYS_SUPPORTS_MULTITHREADING 1861 select CPU_MIPSR2_IRQ_VI 1862 select CPU_MIPSR2_IRQ_EI 1863 select MIPS_MT 1864 select NR_CPUS_DEFAULT_2 1865 select SMP 1866 select SYS_SUPPORTS_SCHED_SMT if SMP 1867 select SYS_SUPPORTS_SMP 1868 select SMP_UP 1869 select MIPS_PERF_SHARED_TC_COUNTERS 1870 help 1871 This is a kernel model which is known a VSMP but lately has been 1872 marketesed into SMVP. 1873 Virtual SMP uses the processor's VPEs to implement virtual 1874 processors. In currently available configuration of the 34K processor 1875 this allows for a dual processor. Both processors will share the same 1876 primary caches; each will obtain the half of the TLB for it's own 1877 exclusive use. For a layman this model can be described as similar to 1878 what Intel calls Hyperthreading. 1879 1880 For further information see http://www.linux-mips.org/wiki/34K#VSMP 1881 1882config MIPS_MT_SMTC 1883 bool "SMTC: Use all TCs on all VPEs for SMP" 1884 depends on CPU_MIPS32_R2 1885 #depends on CPU_MIPS64_R2 # once there is hardware ... 1886 depends on SYS_SUPPORTS_MULTITHREADING 1887 select CPU_MIPSR2_IRQ_VI 1888 select CPU_MIPSR2_IRQ_EI 1889 select MIPS_MT 1890 select NR_CPUS_DEFAULT_8 1891 select SMP 1892 select SYS_SUPPORTS_SMP 1893 select SMP_UP 1894 help 1895 This is a kernel model which is known a SMTC or lately has been 1896 marketesed into SMVP. 1897 is presenting the available TC's of the core as processors to Linux. 1898 On currently available 34K processors this means a Linux system will 1899 see up to 5 processors. The implementation of the SMTC kernel differs 1900 significantly from VSMP and cannot efficiently coexist in the same 1901 kernel binary so the choice between VSMP and SMTC is a compile time 1902 decision. 1903 1904 For further information see http://www.linux-mips.org/wiki/34K#SMTC 1905 1906endchoice 1907 1908config MIPS_MT 1909 bool 1910 1911config SCHED_SMT 1912 bool "SMT (multithreading) scheduler support" 1913 depends on SYS_SUPPORTS_SCHED_SMT 1914 default n 1915 help 1916 SMT scheduler support improves the CPU scheduler's decision making 1917 when dealing with MIPS MT enabled cores at a cost of slightly 1918 increased overhead in some places. If unsure say N here. 1919 1920config SYS_SUPPORTS_SCHED_SMT 1921 bool 1922 1923config SYS_SUPPORTS_MULTITHREADING 1924 bool 1925 1926config MIPS_MT_FPAFF 1927 bool "Dynamic FPU affinity for FP-intensive threads" 1928 default y 1929 depends on MIPS_MT_SMP || MIPS_MT_SMTC 1930 1931config MIPS_VPE_LOADER 1932 bool "VPE loader support." 1933 depends on SYS_SUPPORTS_MULTITHREADING && MODULES 1934 select CPU_MIPSR2_IRQ_VI 1935 select CPU_MIPSR2_IRQ_EI 1936 select MIPS_MT 1937 help 1938 Includes a loader for loading an elf relocatable object 1939 onto another VPE and running it. 1940 1941config MIPS_MT_SMTC_IM_BACKSTOP 1942 bool "Use per-TC register bits as backstop for inhibited IM bits" 1943 depends on MIPS_MT_SMTC 1944 default n 1945 help 1946 To support multiple TC microthreads acting as "CPUs" within 1947 a VPE, VPE-wide interrupt mask bits must be specially manipulated 1948 during interrupt handling. To support legacy drivers and interrupt 1949 controller management code, SMTC has a "backstop" to track and 1950 if necessary restore the interrupt mask. This has some performance 1951 impact on interrupt service overhead. 1952 1953config MIPS_MT_SMTC_IRQAFF 1954 bool "Support IRQ affinity API" 1955 depends on MIPS_MT_SMTC 1956 default n 1957 help 1958 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.) 1959 for SMTC Linux kernel. Requires platform support, of which 1960 an example can be found in the MIPS kernel i8259 and Malta 1961 platform code. Adds some overhead to interrupt dispatch, and 1962 should be used only if you know what you are doing. 1963 1964config MIPS_VPE_LOADER_TOM 1965 bool "Load VPE program into memory hidden from linux" 1966 depends on MIPS_VPE_LOADER 1967 default y 1968 help 1969 The loader can use memory that is present but has been hidden from 1970 Linux using the kernel command line option "mem=xxMB". It's up to 1971 you to ensure the amount you put in the option and the space your 1972 program requires is less or equal to the amount physically present. 1973 1974# this should possibly be in drivers/char, but it is rather cpu related. Hmmm 1975config MIPS_VPE_APSP_API 1976 bool "Enable support for AP/SP API (RTLX)" 1977 depends on MIPS_VPE_LOADER 1978 help 1979 1980config MIPS_CMP 1981 bool "MIPS CMP framework support" 1982 depends on SYS_SUPPORTS_MIPS_CMP 1983 select SYNC_R4K 1984 select SYS_SUPPORTS_SMP 1985 select SYS_SUPPORTS_SCHED_SMT if SMP 1986 select WEAK_ORDERING 1987 default n 1988 help 1989 This is a placeholder option for the GCMP work. It will need to 1990 be handled differently... 1991 1992config SB1_PASS_1_WORKAROUNDS 1993 bool 1994 depends on CPU_SB1_PASS_1 1995 default y 1996 1997config SB1_PASS_2_WORKAROUNDS 1998 bool 1999 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2000 default y 2001 2002config SB1_PASS_2_1_WORKAROUNDS 2003 bool 2004 depends on CPU_SB1 && CPU_SB1_PASS_2 2005 default y 2006 2007 2008config 64BIT_PHYS_ADDR 2009 bool 2010 2011config ARCH_PHYS_ADDR_T_64BIT 2012 def_bool 64BIT_PHYS_ADDR 2013 2014config CPU_HAS_SMARTMIPS 2015 depends on SYS_SUPPORTS_SMARTMIPS 2016 bool "Support for the SmartMIPS ASE" 2017 help 2018 SmartMIPS is a extension of the MIPS32 architecture aimed at 2019 increased security at both hardware and software level for 2020 smartcards. Enabling this option will allow proper use of the 2021 SmartMIPS instructions by Linux applications. However a kernel with 2022 this option will not work on a MIPS core without SmartMIPS core. If 2023 you don't know you probably don't have SmartMIPS and should say N 2024 here. 2025 2026config CPU_MICROMIPS 2027 depends on SYS_SUPPORTS_MICROMIPS 2028 bool "Build kernel using microMIPS ISA" 2029 help 2030 When this option is enabled the kernel will be built using the 2031 microMIPS ISA 2032 2033config CPU_HAS_WB 2034 bool 2035 2036config XKS01 2037 bool 2038 2039# 2040# Vectored interrupt mode is an R2 feature 2041# 2042config CPU_MIPSR2_IRQ_VI 2043 bool 2044 2045# 2046# Extended interrupt mode is an R2 feature 2047# 2048config CPU_MIPSR2_IRQ_EI 2049 bool 2050 2051config CPU_HAS_SYNC 2052 bool 2053 depends on !CPU_R3000 2054 default y 2055 2056# 2057# CPU non-features 2058# 2059config CPU_DADDI_WORKAROUNDS 2060 bool 2061 2062config CPU_R4000_WORKAROUNDS 2063 bool 2064 select CPU_R4400_WORKAROUNDS 2065 2066config CPU_R4400_WORKAROUNDS 2067 bool 2068 2069# 2070# - Highmem only makes sense for the 32-bit kernel. 2071# - The current highmem code will only work properly on physically indexed 2072# caches such as R3000, SB1, R7000 or those that look like they're virtually 2073# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2074# moment we protect the user and offer the highmem option only on machines 2075# where it's known to be safe. This will not offer highmem on a few systems 2076# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2077# indexed CPUs but we're playing safe. 2078# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2079# know they might have memory configurations that could make use of highmem 2080# support. 2081# 2082config HIGHMEM 2083 bool "High Memory Support" 2084 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM 2085 2086config CPU_SUPPORTS_HIGHMEM 2087 bool 2088 2089config SYS_SUPPORTS_HIGHMEM 2090 bool 2091 2092config SYS_SUPPORTS_SMARTMIPS 2093 bool 2094 2095config SYS_SUPPORTS_MICROMIPS 2096 bool 2097 2098config ARCH_FLATMEM_ENABLE 2099 def_bool y 2100 depends on !NUMA && !CPU_LOONGSON2 2101 2102config ARCH_DISCONTIGMEM_ENABLE 2103 bool 2104 default y if SGI_IP27 2105 help 2106 Say Y to support efficient handling of discontiguous physical memory, 2107 for architectures which are either NUMA (Non-Uniform Memory Access) 2108 or have huge holes in the physical address space for other reasons. 2109 See <file:Documentation/vm/numa> for more. 2110 2111config ARCH_SPARSEMEM_ENABLE 2112 bool 2113 select SPARSEMEM_STATIC 2114 2115config NUMA 2116 bool "NUMA Support" 2117 depends on SYS_SUPPORTS_NUMA 2118 help 2119 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2120 Access). This option improves performance on systems with more 2121 than two nodes; on two node systems it is generally better to 2122 leave it disabled; on single node systems disable this option 2123 disabled. 2124 2125config SYS_SUPPORTS_NUMA 2126 bool 2127 2128config NODES_SHIFT 2129 int 2130 default "6" 2131 depends on NEED_MULTIPLE_NODES 2132 2133config HW_PERF_EVENTS 2134 bool "Enable hardware performance counter support for perf events" 2135 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP) 2136 default y 2137 help 2138 Enable hardware performance counter support for perf events. If 2139 disabled, perf events will use software events only. 2140 2141source "mm/Kconfig" 2142 2143config SMP 2144 bool "Multi-Processing support" 2145 depends on SYS_SUPPORTS_SMP 2146 select USE_GENERIC_SMP_HELPERS 2147 help 2148 This enables support for systems with more than one CPU. If you have 2149 a system with only one CPU, like most personal computers, say N. If 2150 you have a system with more than one CPU, say Y. 2151 2152 If you say N here, the kernel will run on single and multiprocessor 2153 machines, but will use only one CPU of a multiprocessor machine. If 2154 you say Y here, the kernel will run on many, but not all, 2155 singleprocessor machines. On a singleprocessor machine, the kernel 2156 will run faster if you say N here. 2157 2158 People using multiprocessor machines who say Y here should also say 2159 Y to "Enhanced Real Time Clock Support", below. 2160 2161 See also the SMP-HOWTO available at 2162 <http://www.tldp.org/docs.html#howto>. 2163 2164 If you don't know what to do here, say N. 2165 2166config SMP_UP 2167 bool 2168 2169config SYS_SUPPORTS_MIPS_CMP 2170 bool 2171 2172config SYS_SUPPORTS_SMP 2173 bool 2174 2175config NR_CPUS_DEFAULT_1 2176 bool 2177 2178config NR_CPUS_DEFAULT_2 2179 bool 2180 2181config NR_CPUS_DEFAULT_4 2182 bool 2183 2184config NR_CPUS_DEFAULT_8 2185 bool 2186 2187config NR_CPUS_DEFAULT_16 2188 bool 2189 2190config NR_CPUS_DEFAULT_32 2191 bool 2192 2193config NR_CPUS_DEFAULT_64 2194 bool 2195 2196config NR_CPUS 2197 int "Maximum number of CPUs (2-64)" 2198 range 1 64 if NR_CPUS_DEFAULT_1 2199 depends on SMP 2200 default "1" if NR_CPUS_DEFAULT_1 2201 default "2" if NR_CPUS_DEFAULT_2 2202 default "4" if NR_CPUS_DEFAULT_4 2203 default "8" if NR_CPUS_DEFAULT_8 2204 default "16" if NR_CPUS_DEFAULT_16 2205 default "32" if NR_CPUS_DEFAULT_32 2206 default "64" if NR_CPUS_DEFAULT_64 2207 help 2208 This allows you to specify the maximum number of CPUs which this 2209 kernel will support. The maximum supported value is 32 for 32-bit 2210 kernel and 64 for 64-bit kernels; the minimum value which makes 2211 sense is 1 for Qemu (useful only for kernel debugging purposes) 2212 and 2 for all others. 2213 2214 This is purely to save memory - each supported CPU adds 2215 approximately eight kilobytes to the kernel image. For best 2216 performance should round up your number of processors to the next 2217 power of two. 2218 2219config MIPS_PERF_SHARED_TC_COUNTERS 2220 bool 2221 2222# 2223# Timer Interrupt Frequency Configuration 2224# 2225 2226choice 2227 prompt "Timer frequency" 2228 default HZ_250 2229 help 2230 Allows the configuration of the timer frequency. 2231 2232 config HZ_48 2233 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2234 2235 config HZ_100 2236 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2237 2238 config HZ_128 2239 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2240 2241 config HZ_250 2242 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2243 2244 config HZ_256 2245 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2246 2247 config HZ_1000 2248 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2249 2250 config HZ_1024 2251 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2252 2253endchoice 2254 2255config SYS_SUPPORTS_48HZ 2256 bool 2257 2258config SYS_SUPPORTS_100HZ 2259 bool 2260 2261config SYS_SUPPORTS_128HZ 2262 bool 2263 2264config SYS_SUPPORTS_250HZ 2265 bool 2266 2267config SYS_SUPPORTS_256HZ 2268 bool 2269 2270config SYS_SUPPORTS_1000HZ 2271 bool 2272 2273config SYS_SUPPORTS_1024HZ 2274 bool 2275 2276config SYS_SUPPORTS_ARBIT_HZ 2277 bool 2278 default y if !SYS_SUPPORTS_48HZ && !SYS_SUPPORTS_100HZ && \ 2279 !SYS_SUPPORTS_128HZ && !SYS_SUPPORTS_250HZ && \ 2280 !SYS_SUPPORTS_256HZ && !SYS_SUPPORTS_1000HZ && \ 2281 !SYS_SUPPORTS_1024HZ 2282 2283config HZ 2284 int 2285 default 48 if HZ_48 2286 default 100 if HZ_100 2287 default 128 if HZ_128 2288 default 250 if HZ_250 2289 default 256 if HZ_256 2290 default 1000 if HZ_1000 2291 default 1024 if HZ_1024 2292 2293source "kernel/Kconfig.preempt" 2294 2295config KEXEC 2296 bool "Kexec system call" 2297 help 2298 kexec is a system call that implements the ability to shutdown your 2299 current kernel, and to start another kernel. It is like a reboot 2300 but it is independent of the system firmware. And like a reboot 2301 you can start any kernel with it, not just Linux. 2302 2303 The name comes from the similarity to the exec system call. 2304 2305 It is an ongoing process to be certain the hardware in a machine 2306 is properly shutdown, so do not be surprised if this code does not 2307 initially work for you. It may help to enable device hotplugging 2308 support. As of this writing the exact hardware interface is 2309 strongly in flux, so no good recommendation can be made. 2310 2311config CRASH_DUMP 2312 bool "Kernel crash dumps" 2313 help 2314 Generate crash dump after being started by kexec. 2315 This should be normally only set in special crash dump kernels 2316 which are loaded in the main kernel with kexec-tools into 2317 a specially reserved region and then later executed after 2318 a crash by kdump/kexec. The crash dump kernel must be compiled 2319 to a memory address not used by the main kernel or firmware using 2320 PHYSICAL_START. 2321 2322config PHYSICAL_START 2323 hex "Physical address where the kernel is loaded" 2324 default "0xffffffff84000000" if 64BIT 2325 default "0x84000000" if 32BIT 2326 depends on CRASH_DUMP 2327 help 2328 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2329 If you plan to use kernel for capturing the crash dump change 2330 this value to start of the reserved region (the "X" value as 2331 specified in the "crashkernel=YM@XM" command line boot parameter 2332 passed to the panic-ed kernel). 2333 2334config SECCOMP 2335 bool "Enable seccomp to safely compute untrusted bytecode" 2336 depends on PROC_FS 2337 default y 2338 help 2339 This kernel feature is useful for number crunching applications 2340 that may need to compute untrusted bytecode during their 2341 execution. By using pipes or other transports made available to 2342 the process as file descriptors supporting the read/write 2343 syscalls, it's possible to isolate those applications in 2344 their own address space using seccomp. Once seccomp is 2345 enabled via /proc/<pid>/seccomp, it cannot be disabled 2346 and the task is only allowed to execute a few safe syscalls 2347 defined by each seccomp mode. 2348 2349 If unsure, say Y. Only embedded should say N here. 2350 2351config CC_STACKPROTECTOR 2352 bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)" 2353 help 2354 This option turns on the -fstack-protector GCC feature. This 2355 feature puts, at the beginning of functions, a canary value on 2356 the stack just before the return address, and validates 2357 the value just before actually returning. Stack based buffer 2358 overflows (that need to overwrite this return address) now also 2359 overwrite the canary, which gets detected and the attack is then 2360 neutralized via a kernel panic. 2361 2362 This feature requires gcc version 4.2 or above. 2363 2364config USE_OF 2365 bool 2366 select OF 2367 select OF_EARLY_FLATTREE 2368 select IRQ_DOMAIN 2369 2370endmenu 2371 2372config LOCKDEP_SUPPORT 2373 bool 2374 default y 2375 2376config STACKTRACE_SUPPORT 2377 bool 2378 default y 2379 2380source "init/Kconfig" 2381 2382source "kernel/Kconfig.freezer" 2383 2384menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 2385 2386config HW_HAS_EISA 2387 bool 2388config HW_HAS_PCI 2389 bool 2390 2391config PCI 2392 bool "Support for PCI controller" 2393 depends on HW_HAS_PCI 2394 select PCI_DOMAINS 2395 select NO_GENERIC_PCI_IOPORT_MAP 2396 help 2397 Find out whether you have a PCI motherboard. PCI is the name of a 2398 bus system, i.e. the way the CPU talks to the other stuff inside 2399 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, 2400 say Y, otherwise N. 2401 2402config PCI_DOMAINS 2403 bool 2404 2405source "drivers/pci/Kconfig" 2406 2407source "drivers/pci/pcie/Kconfig" 2408 2409# 2410# ISA support is now enabled via select. Too many systems still have the one 2411# or other ISA chip on the board that users don't know about so don't expect 2412# users to choose the right thing ... 2413# 2414config ISA 2415 bool 2416 2417config EISA 2418 bool "EISA support" 2419 depends on HW_HAS_EISA 2420 select ISA 2421 select GENERIC_ISA_DMA 2422 ---help--- 2423 The Extended Industry Standard Architecture (EISA) bus was 2424 developed as an open alternative to the IBM MicroChannel bus. 2425 2426 The EISA bus provided some of the features of the IBM MicroChannel 2427 bus while maintaining backward compatibility with cards made for 2428 the older ISA bus. The EISA bus saw limited use between 1988 and 2429 1995 when it was made obsolete by the PCI bus. 2430 2431 Say Y here if you are building a kernel for an EISA-based machine. 2432 2433 Otherwise, say N. 2434 2435source "drivers/eisa/Kconfig" 2436 2437config TC 2438 bool "TURBOchannel support" 2439 depends on MACH_DECSTATION 2440 help 2441 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 2442 processors. TURBOchannel programming specifications are available 2443 at: 2444 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 2445 and: 2446 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 2447 Linux driver support status is documented at: 2448 <http://www.linux-mips.org/wiki/DECstation> 2449 2450config MMU 2451 bool 2452 default y 2453 2454config I8253 2455 bool 2456 select CLKSRC_I8253 2457 select CLKEVT_I8253 2458 select MIPS_EXTERNAL_TIMER 2459 2460config ZONE_DMA 2461 bool 2462 2463config ZONE_DMA32 2464 bool 2465 2466source "drivers/pcmcia/Kconfig" 2467 2468source "drivers/pci/hotplug/Kconfig" 2469 2470config RAPIDIO 2471 bool "RapidIO support" 2472 depends on PCI 2473 default n 2474 help 2475 If you say Y here, the kernel will include drivers and 2476 infrastructure code to support RapidIO interconnect devices. 2477 2478source "drivers/rapidio/Kconfig" 2479 2480endmenu 2481 2482menu "Executable file formats" 2483 2484source "fs/Kconfig.binfmt" 2485 2486config TRAD_SIGNALS 2487 bool 2488 2489config MIPS32_COMPAT 2490 bool "Kernel support for Linux/MIPS 32-bit binary compatibility" 2491 depends on 64BIT 2492 help 2493 Select this option if you want Linux/MIPS 32-bit binary 2494 compatibility. Since all software available for Linux/MIPS is 2495 currently 32-bit you should say Y here. 2496 2497config COMPAT 2498 bool 2499 depends on MIPS32_COMPAT 2500 select ARCH_WANT_OLD_COMPAT_IPC 2501 default y 2502 2503config SYSVIPC_COMPAT 2504 bool 2505 depends on COMPAT && SYSVIPC 2506 default y 2507 2508config MIPS32_O32 2509 bool "Kernel support for o32 binaries" 2510 depends on MIPS32_COMPAT 2511 help 2512 Select this option if you want to run o32 binaries. These are pure 2513 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 2514 existing binaries are in this format. 2515 2516 If unsure, say Y. 2517 2518config MIPS32_N32 2519 bool "Kernel support for n32 binaries" 2520 depends on MIPS32_COMPAT 2521 help 2522 Select this option if you want to run n32 binaries. These are 2523 64-bit binaries using 32-bit quantities for addressing and certain 2524 data that would normally be 64-bit. They are used in special 2525 cases. 2526 2527 If unsure, say N. 2528 2529config BINFMT_ELF32 2530 bool 2531 default y if MIPS32_O32 || MIPS32_N32 2532 2533endmenu 2534 2535menu "Power management options" 2536 2537config ARCH_HIBERNATION_POSSIBLE 2538 def_bool y 2539 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 2540 2541config ARCH_SUSPEND_POSSIBLE 2542 def_bool y 2543 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 2544 2545source "kernel/power/Kconfig" 2546 2547endmenu 2548 2549config MIPS_EXTERNAL_TIMER 2550 bool 2551 2552if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 2553menu "CPU Power Management" 2554source "drivers/cpufreq/Kconfig" 2555endmenu 2556endif 2557 2558source "net/Kconfig" 2559 2560source "drivers/Kconfig" 2561 2562source "drivers/firmware/Kconfig" 2563 2564source "fs/Kconfig" 2565 2566source "arch/mips/Kconfig.debug" 2567 2568source "security/Kconfig" 2569 2570source "crypto/Kconfig" 2571 2572source "lib/Kconfig" 2573 2574source "arch/mips/kvm/Kconfig" 2575