1config MIPS 2 bool 3 default y 4 select ARCH_MIGHT_HAVE_PC_PARPORT 5 select HAVE_CONTEXT_TRACKING 6 select HAVE_GENERIC_DMA_COHERENT 7 select HAVE_IDE 8 select HAVE_OPROFILE 9 select HAVE_PERF_EVENTS 10 select PERF_USE_VMALLOC 11 select HAVE_ARCH_KGDB 12 select HAVE_ARCH_TRACEHOOK 13 select ARCH_HAVE_CUSTOM_GPIO_H 14 select HAVE_FUNCTION_TRACER 15 select HAVE_FUNCTION_TRACE_MCOUNT_TEST 16 select HAVE_DYNAMIC_FTRACE 17 select HAVE_FTRACE_MCOUNT_RECORD 18 select HAVE_C_RECORDMCOUNT 19 select HAVE_FUNCTION_GRAPH_TRACER 20 select HAVE_KPROBES 21 select HAVE_KRETPROBES 22 select HAVE_DEBUG_KMEMLEAK 23 select HAVE_SYSCALL_TRACEPOINTS 24 select ARCH_BINFMT_ELF_RANDOMIZE_PIE 25 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT 26 select RTC_LIB if !MACH_LOONGSON 27 select GENERIC_ATOMIC64 if !64BIT 28 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE 29 select HAVE_DMA_ATTRS 30 select HAVE_DMA_API_DEBUG 31 select GENERIC_IRQ_PROBE 32 select GENERIC_IRQ_SHOW 33 select GENERIC_PCI_IOMAP 34 select HAVE_ARCH_JUMP_LABEL 35 select ARCH_WANT_IPC_PARSE_VERSION 36 select IRQ_FORCED_THREADING 37 select HAVE_MEMBLOCK 38 select HAVE_MEMBLOCK_NODE_MAP 39 select ARCH_DISCARD_MEMBLOCK 40 select GENERIC_SMP_IDLE_THREAD 41 select BUILDTIME_EXTABLE_SORT 42 select GENERIC_CLOCKEVENTS 43 select GENERIC_CMOS_UPDATE 44 select HAVE_MOD_ARCH_SPECIFIC 45 select VIRT_TO_BUS 46 select MODULES_USE_ELF_REL if MODULES 47 select MODULES_USE_ELF_RELA if MODULES && 64BIT 48 select CLONE_BACKWARDS 49 select HAVE_DEBUG_STACKOVERFLOW 50 51menu "Machine selection" 52 53choice 54 prompt "System type" 55 default SGI_IP22 56 57config MIPS_ALCHEMY 58 bool "Alchemy processor based machines" 59 select 64BIT_PHYS_ADDR 60 select CEVT_R4K 61 select CSRC_R4K 62 select IRQ_CPU 63 select SYS_HAS_CPU_MIPS32_R1 64 select SYS_SUPPORTS_32BIT_KERNEL 65 select SYS_SUPPORTS_APM_EMULATION 66 select ARCH_REQUIRE_GPIOLIB 67 select SYS_SUPPORTS_ZBOOT 68 select USB_ARCH_HAS_OHCI 69 select USB_ARCH_HAS_EHCI 70 71config AR7 72 bool "Texas Instruments AR7" 73 select BOOT_ELF32 74 select DMA_NONCOHERENT 75 select CEVT_R4K 76 select CSRC_R4K 77 select IRQ_CPU 78 select NO_EXCEPT_FILL 79 select SWAP_IO_SPACE 80 select SYS_HAS_CPU_MIPS32_R1 81 select SYS_HAS_EARLY_PRINTK 82 select SYS_SUPPORTS_32BIT_KERNEL 83 select SYS_SUPPORTS_LITTLE_ENDIAN 84 select SYS_SUPPORTS_ZBOOT_UART16550 85 select ARCH_REQUIRE_GPIOLIB 86 select VLYNQ 87 select HAVE_CLK 88 help 89 Support for the Texas Instruments AR7 System-on-a-Chip 90 family: TNETD7100, 7200 and 7300. 91 92config ATH79 93 bool "Atheros AR71XX/AR724X/AR913X based boards" 94 select ARCH_REQUIRE_GPIOLIB 95 select BOOT_RAW 96 select CEVT_R4K 97 select CSRC_R4K 98 select DMA_NONCOHERENT 99 select HAVE_CLK 100 select CLKDEV_LOOKUP 101 select IRQ_CPU 102 select MIPS_MACHINE 103 select SYS_HAS_CPU_MIPS32_R2 104 select SYS_HAS_EARLY_PRINTK 105 select SYS_SUPPORTS_32BIT_KERNEL 106 select SYS_SUPPORTS_BIG_ENDIAN 107 help 108 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 109 110config BCM47XX 111 bool "Broadcom BCM47XX based boards" 112 select ARCH_WANT_OPTIONAL_GPIOLIB 113 select BOOT_RAW 114 select CEVT_R4K 115 select CSRC_R4K 116 select DMA_NONCOHERENT 117 select HW_HAS_PCI 118 select IRQ_CPU 119 select SYS_HAS_CPU_MIPS32_R1 120 select NO_EXCEPT_FILL 121 select SYS_SUPPORTS_32BIT_KERNEL 122 select SYS_SUPPORTS_LITTLE_ENDIAN 123 select SYS_HAS_EARLY_PRINTK 124 select EARLY_PRINTK_8250 if EARLY_PRINTK 125 help 126 Support for BCM47XX based boards 127 128config BCM63XX 129 bool "Broadcom BCM63XX based boards" 130 select BOOT_RAW 131 select CEVT_R4K 132 select CSRC_R4K 133 select DMA_NONCOHERENT 134 select IRQ_CPU 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 EARLY_PRINTK_8250 if EARLY_PRINTK 151 select HW_HAS_PCI 152 select I8253 153 select I8259 154 select IRQ_CPU 155 select IRQ_GT641XX 156 select PCI_GT64XXX_PCI0 157 select PCI 158 select SYS_HAS_CPU_NEVADA 159 select SYS_HAS_EARLY_PRINTK 160 select SYS_SUPPORTS_32BIT_KERNEL 161 select SYS_SUPPORTS_64BIT_KERNEL 162 select SYS_SUPPORTS_LITTLE_ENDIAN 163 164config MACH_DECSTATION 165 bool "DECstations" 166 select BOOT_ELF32 167 select CEVT_DS1287 168 select CEVT_R4K 169 select CSRC_IOASIC 170 select CSRC_R4K 171 select CPU_DADDI_WORKAROUNDS if 64BIT 172 select CPU_R4000_WORKAROUNDS if 64BIT 173 select CPU_R4400_WORKAROUNDS if 64BIT 174 select DMA_NONCOHERENT 175 select NO_IOPORT 176 select IRQ_CPU 177 select SYS_HAS_CPU_R3000 178 select SYS_HAS_CPU_R4X00 179 select SYS_SUPPORTS_32BIT_KERNEL 180 select SYS_SUPPORTS_64BIT_KERNEL 181 select SYS_SUPPORTS_LITTLE_ENDIAN 182 select SYS_SUPPORTS_128HZ 183 select SYS_SUPPORTS_256HZ 184 select SYS_SUPPORTS_1024HZ 185 select MIPS_L1_CACHE_SHIFT_4 186 help 187 This enables support for DEC's MIPS based workstations. For details 188 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 189 DECstation porting pages on <http://decstation.unix-ag.org/>. 190 191 If you have one of the following DECstation Models you definitely 192 want to choose R4xx0 for the CPU Type: 193 194 DECstation 5000/50 195 DECstation 5000/150 196 DECstation 5000/260 197 DECsystem 5900/260 198 199 otherwise choose R3000. 200 201config MACH_JAZZ 202 bool "Jazz family of machines" 203 select FW_ARC 204 select FW_ARC32 205 select ARCH_MAY_HAVE_PC_FDC 206 select CEVT_R4K 207 select CSRC_R4K 208 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 209 select GENERIC_ISA_DMA 210 select HAVE_PCSPKR_PLATFORM 211 select IRQ_CPU 212 select I8253 213 select I8259 214 select ISA 215 select SYS_HAS_CPU_R4X00 216 select SYS_SUPPORTS_32BIT_KERNEL 217 select SYS_SUPPORTS_64BIT_KERNEL 218 select SYS_SUPPORTS_100HZ 219 help 220 This a family of machines based on the MIPS R4030 chipset which was 221 used by several vendors to build RISC/os and Windows NT workstations. 222 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 223 Olivetti M700-10 workstations. 224 225config MACH_JZ4740 226 bool "Ingenic JZ4740 based machines" 227 select SYS_HAS_CPU_MIPS32_R1 228 select SYS_SUPPORTS_32BIT_KERNEL 229 select SYS_SUPPORTS_LITTLE_ENDIAN 230 select SYS_SUPPORTS_ZBOOT_UART16550 231 select DMA_NONCOHERENT 232 select IRQ_CPU 233 select ARCH_REQUIRE_GPIOLIB 234 select SYS_HAS_EARLY_PRINTK 235 select HAVE_PWM 236 select HAVE_CLK 237 select GENERIC_IRQ_CHIP 238 239config LANTIQ 240 bool "Lantiq based platforms" 241 select DMA_NONCOHERENT 242 select IRQ_CPU 243 select CEVT_R4K 244 select CSRC_R4K 245 select SYS_HAS_CPU_MIPS32_R1 246 select SYS_HAS_CPU_MIPS32_R2 247 select SYS_SUPPORTS_BIG_ENDIAN 248 select SYS_SUPPORTS_32BIT_KERNEL 249 select SYS_SUPPORTS_MULTITHREADING 250 select SYS_HAS_EARLY_PRINTK 251 select ARCH_REQUIRE_GPIOLIB 252 select SWAP_IO_SPACE 253 select BOOT_RAW 254 select HAVE_MACH_CLKDEV 255 select CLKDEV_LOOKUP 256 select USE_OF 257 select PINCTRL 258 select PINCTRL_LANTIQ 259 260config LASAT 261 bool "LASAT Networks platforms" 262 select CEVT_R4K 263 select CSRC_R4K 264 select DMA_NONCOHERENT 265 select SYS_HAS_EARLY_PRINTK 266 select HW_HAS_PCI 267 select IRQ_CPU 268 select PCI_GT64XXX_PCI0 269 select MIPS_NILE4 270 select R5000_CPU_SCACHE 271 select SYS_HAS_CPU_R5000 272 select SYS_SUPPORTS_32BIT_KERNEL 273 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 274 select SYS_SUPPORTS_LITTLE_ENDIAN 275 276config MACH_LOONGSON 277 bool "Loongson family of machines" 278 select SYS_SUPPORTS_ZBOOT 279 help 280 This enables the support of Loongson family of machines. 281 282 Loongson is a family of general-purpose MIPS-compatible CPUs. 283 developed at Institute of Computing Technology (ICT), 284 Chinese Academy of Sciences (CAS) in the People's Republic 285 of China. The chief architect is Professor Weiwu Hu. 286 287config MACH_LOONGSON1 288 bool "Loongson 1 family of machines" 289 select SYS_SUPPORTS_ZBOOT 290 help 291 This enables support for the Loongson 1 based machines. 292 293 Loongson 1 is a family of 32-bit MIPS-compatible SoCs developed by 294 the ICT (Institute of Computing Technology) and the Chinese Academy 295 of Sciences. 296 297config MIPS_MALTA 298 bool "MIPS Malta board" 299 select ARCH_MAY_HAVE_PC_FDC 300 select BOOT_ELF32 301 select BOOT_RAW 302 select CEVT_R4K 303 select CSRC_R4K 304 select CSRC_GIC 305 select DMA_MAYBE_COHERENT 306 select GENERIC_ISA_DMA 307 select HAVE_PCSPKR_PLATFORM 308 select IRQ_CPU 309 select IRQ_GIC 310 select HW_HAS_PCI 311 select I8253 312 select I8259 313 select MIPS_BONITO64 314 select MIPS_CPU_SCACHE 315 select PCI_GT64XXX_PCI0 316 select MIPS_MSC 317 select SWAP_IO_SPACE 318 select SYS_HAS_CPU_MIPS32_R1 319 select SYS_HAS_CPU_MIPS32_R2 320 select SYS_HAS_CPU_MIPS64_R1 321 select SYS_HAS_CPU_MIPS64_R2 322 select SYS_HAS_CPU_NEVADA 323 select SYS_HAS_CPU_RM7000 324 select SYS_SUPPORTS_32BIT_KERNEL 325 select SYS_SUPPORTS_64BIT_KERNEL 326 select SYS_SUPPORTS_BIG_ENDIAN 327 select SYS_SUPPORTS_LITTLE_ENDIAN 328 select SYS_SUPPORTS_MIPS_CMP 329 select SYS_SUPPORTS_MULTITHREADING 330 select SYS_SUPPORTS_SMARTMIPS 331 select SYS_SUPPORTS_ZBOOT 332 help 333 This enables support for the MIPS Technologies Malta evaluation 334 board. 335 336config MIPS_SEAD3 337 bool "MIPS SEAD3 board" 338 select BOOT_ELF32 339 select BOOT_RAW 340 select CEVT_R4K 341 select CSRC_R4K 342 select CSRC_GIC 343 select CPU_MIPSR2_IRQ_VI 344 select CPU_MIPSR2_IRQ_EI 345 select DMA_NONCOHERENT 346 select IRQ_CPU 347 select IRQ_GIC 348 select LIBFDT 349 select MIPS_MSC 350 select SYS_HAS_CPU_MIPS32_R1 351 select SYS_HAS_CPU_MIPS32_R2 352 select SYS_HAS_CPU_MIPS64_R1 353 select SYS_HAS_EARLY_PRINTK 354 select SYS_SUPPORTS_32BIT_KERNEL 355 select SYS_SUPPORTS_64BIT_KERNEL 356 select SYS_SUPPORTS_BIG_ENDIAN 357 select SYS_SUPPORTS_LITTLE_ENDIAN 358 select SYS_SUPPORTS_SMARTMIPS 359 select SYS_SUPPORTS_MICROMIPS 360 select USB_ARCH_HAS_EHCI 361 select USB_EHCI_BIG_ENDIAN_DESC 362 select USB_EHCI_BIG_ENDIAN_MMIO 363 select USE_OF 364 help 365 This enables support for the MIPS Technologies SEAD3 evaluation 366 board. 367 368config NEC_MARKEINS 369 bool "NEC EMMA2RH Mark-eins board" 370 select SOC_EMMA2RH 371 select HW_HAS_PCI 372 help 373 This enables support for the NEC Electronics Mark-eins boards. 374 375config MACH_VR41XX 376 bool "NEC VR4100 series based machines" 377 select CEVT_R4K 378 select CSRC_R4K 379 select SYS_HAS_CPU_VR41XX 380 select ARCH_REQUIRE_GPIOLIB 381 382config NXP_STB220 383 bool "NXP STB220 board" 384 select SOC_PNX833X 385 help 386 Support for NXP Semiconductors STB220 Development Board. 387 388config NXP_STB225 389 bool "NXP 225 board" 390 select SOC_PNX833X 391 select SOC_PNX8335 392 help 393 Support for NXP Semiconductors STB225 Development Board. 394 395config PMC_MSP 396 bool "PMC-Sierra MSP chipsets" 397 select CEVT_R4K 398 select CSRC_R4K 399 select DMA_NONCOHERENT 400 select SWAP_IO_SPACE 401 select NO_EXCEPT_FILL 402 select BOOT_RAW 403 select SYS_HAS_CPU_MIPS32_R1 404 select SYS_HAS_CPU_MIPS32_R2 405 select SYS_SUPPORTS_32BIT_KERNEL 406 select SYS_SUPPORTS_BIG_ENDIAN 407 select IRQ_CPU 408 select SERIAL_8250 409 select SERIAL_8250_CONSOLE 410 select USB_EHCI_BIG_ENDIAN_MMIO 411 select USB_EHCI_BIG_ENDIAN_DESC 412 help 413 This adds support for the PMC-Sierra family of Multi-Service 414 Processor System-On-A-Chips. These parts include a number 415 of integrated peripherals, interfaces and DSPs in addition to 416 a variety of MIPS cores. 417 418config RALINK 419 bool "Ralink based machines" 420 select CEVT_R4K 421 select CSRC_R4K 422 select BOOT_RAW 423 select DMA_NONCOHERENT 424 select IRQ_CPU 425 select USE_OF 426 select SYS_HAS_CPU_MIPS32_R1 427 select SYS_HAS_CPU_MIPS32_R2 428 select SYS_SUPPORTS_32BIT_KERNEL 429 select SYS_SUPPORTS_LITTLE_ENDIAN 430 select SYS_HAS_EARLY_PRINTK 431 select HAVE_MACH_CLKDEV 432 select CLKDEV_LOOKUP 433 select ARCH_HAS_RESET_CONTROLLER 434 select RESET_CONTROLLER 435 436config SGI_IP22 437 bool "SGI IP22 (Indy/Indigo2)" 438 select FW_ARC 439 select FW_ARC32 440 select BOOT_ELF32 441 select CEVT_R4K 442 select CSRC_R4K 443 select DEFAULT_SGI_PARTITION 444 select DMA_NONCOHERENT 445 select HW_HAS_EISA 446 select I8253 447 select I8259 448 select IP22_CPU_SCACHE 449 select IRQ_CPU 450 select GENERIC_ISA_DMA_SUPPORT_BROKEN 451 select SGI_HAS_I8042 452 select SGI_HAS_INDYDOG 453 select SGI_HAS_HAL2 454 select SGI_HAS_SEEQ 455 select SGI_HAS_WD93 456 select SGI_HAS_ZILOG 457 select SWAP_IO_SPACE 458 select SYS_HAS_CPU_R4X00 459 select SYS_HAS_CPU_R5000 460 # 461 # Disable EARLY_PRINTK for now since it leads to overwritten prom 462 # memory during early boot on some machines. 463 # 464 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 465 # for a more details discussion 466 # 467 # select SYS_HAS_EARLY_PRINTK 468 select SYS_SUPPORTS_32BIT_KERNEL 469 select SYS_SUPPORTS_64BIT_KERNEL 470 select SYS_SUPPORTS_BIG_ENDIAN 471 select MIPS_L1_CACHE_SHIFT_7 472 help 473 This are the SGI Indy, Challenge S and Indigo2, as well as certain 474 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 475 that runs on these, say Y here. 476 477config SGI_IP27 478 bool "SGI IP27 (Origin200/2000)" 479 select FW_ARC 480 select FW_ARC64 481 select BOOT_ELF64 482 select DEFAULT_SGI_PARTITION 483 select DMA_COHERENT 484 select SYS_HAS_EARLY_PRINTK 485 select HW_HAS_PCI 486 select NR_CPUS_DEFAULT_64 487 select SYS_HAS_CPU_R10000 488 select SYS_SUPPORTS_64BIT_KERNEL 489 select SYS_SUPPORTS_BIG_ENDIAN 490 select SYS_SUPPORTS_NUMA 491 select SYS_SUPPORTS_SMP 492 select MIPS_L1_CACHE_SHIFT_7 493 help 494 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 495 workstations. To compile a Linux kernel that runs on these, say Y 496 here. 497 498config SGI_IP28 499 bool "SGI IP28 (Indigo2 R10k)" 500 select FW_ARC 501 select FW_ARC64 502 select BOOT_ELF64 503 select CEVT_R4K 504 select CSRC_R4K 505 select DEFAULT_SGI_PARTITION 506 select DMA_NONCOHERENT 507 select GENERIC_ISA_DMA_SUPPORT_BROKEN 508 select IRQ_CPU 509 select HW_HAS_EISA 510 select I8253 511 select I8259 512 select SGI_HAS_I8042 513 select SGI_HAS_INDYDOG 514 select SGI_HAS_HAL2 515 select SGI_HAS_SEEQ 516 select SGI_HAS_WD93 517 select SGI_HAS_ZILOG 518 select SWAP_IO_SPACE 519 select SYS_HAS_CPU_R10000 520 # 521 # Disable EARLY_PRINTK for now since it leads to overwritten prom 522 # memory during early boot on some machines. 523 # 524 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 525 # for a more details discussion 526 # 527 # select SYS_HAS_EARLY_PRINTK 528 select SYS_SUPPORTS_64BIT_KERNEL 529 select SYS_SUPPORTS_BIG_ENDIAN 530 help 531 This is the SGI Indigo2 with R10000 processor. To compile a Linux 532 kernel that runs on these, say Y here. 533 534config SGI_IP32 535 bool "SGI IP32 (O2)" 536 select FW_ARC 537 select FW_ARC32 538 select BOOT_ELF32 539 select CEVT_R4K 540 select CSRC_R4K 541 select DMA_NONCOHERENT 542 select HW_HAS_PCI 543 select IRQ_CPU 544 select R5000_CPU_SCACHE 545 select RM7000_CPU_SCACHE 546 select SYS_HAS_CPU_R5000 547 select SYS_HAS_CPU_R10000 if BROKEN 548 select SYS_HAS_CPU_RM7000 549 select SYS_HAS_CPU_NEVADA 550 select SYS_SUPPORTS_64BIT_KERNEL 551 select SYS_SUPPORTS_BIG_ENDIAN 552 help 553 If you want this kernel to run on SGI O2 workstation, say Y here. 554 555config SIBYTE_CRHINE 556 bool "Sibyte BCM91120C-CRhine" 557 select BOOT_ELF32 558 select DMA_COHERENT 559 select SIBYTE_BCM1120 560 select SWAP_IO_SPACE 561 select SYS_HAS_CPU_SB1 562 select SYS_SUPPORTS_BIG_ENDIAN 563 select SYS_SUPPORTS_LITTLE_ENDIAN 564 565config SIBYTE_CARMEL 566 bool "Sibyte BCM91120x-Carmel" 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_CRHONE 576 bool "Sibyte BCM91125C-CRhone" 577 select BOOT_ELF32 578 select DMA_COHERENT 579 select SIBYTE_BCM1125 580 select SWAP_IO_SPACE 581 select SYS_HAS_CPU_SB1 582 select SYS_SUPPORTS_BIG_ENDIAN 583 select SYS_SUPPORTS_HIGHMEM 584 select SYS_SUPPORTS_LITTLE_ENDIAN 585 586config SIBYTE_RHONE 587 bool "Sibyte BCM91125E-Rhone" 588 select BOOT_ELF32 589 select DMA_COHERENT 590 select SIBYTE_BCM1125H 591 select SWAP_IO_SPACE 592 select SYS_HAS_CPU_SB1 593 select SYS_SUPPORTS_BIG_ENDIAN 594 select SYS_SUPPORTS_LITTLE_ENDIAN 595 596config SIBYTE_SWARM 597 bool "Sibyte BCM91250A-SWARM" 598 select BOOT_ELF32 599 select DMA_COHERENT 600 select HAVE_PATA_PLATFORM 601 select SIBYTE_SB1250 602 select SWAP_IO_SPACE 603 select SYS_HAS_CPU_SB1 604 select SYS_SUPPORTS_BIG_ENDIAN 605 select SYS_SUPPORTS_HIGHMEM 606 select SYS_SUPPORTS_LITTLE_ENDIAN 607 select ZONE_DMA32 if 64BIT 608 609config SIBYTE_LITTLESUR 610 bool "Sibyte BCM91250C2-LittleSur" 611 select BOOT_ELF32 612 select DMA_COHERENT 613 select HAVE_PATA_PLATFORM 614 select SIBYTE_SB1250 615 select SWAP_IO_SPACE 616 select SYS_HAS_CPU_SB1 617 select SYS_SUPPORTS_BIG_ENDIAN 618 select SYS_SUPPORTS_HIGHMEM 619 select SYS_SUPPORTS_LITTLE_ENDIAN 620 621config SIBYTE_SENTOSA 622 bool "Sibyte BCM91250E-Sentosa" 623 select BOOT_ELF32 624 select DMA_COHERENT 625 select SIBYTE_SB1250 626 select SWAP_IO_SPACE 627 select SYS_HAS_CPU_SB1 628 select SYS_SUPPORTS_BIG_ENDIAN 629 select SYS_SUPPORTS_LITTLE_ENDIAN 630 631config SIBYTE_BIGSUR 632 bool "Sibyte BCM91480B-BigSur" 633 select BOOT_ELF32 634 select DMA_COHERENT 635 select NR_CPUS_DEFAULT_4 636 select SIBYTE_BCM1x80 637 select SWAP_IO_SPACE 638 select SYS_HAS_CPU_SB1 639 select SYS_SUPPORTS_BIG_ENDIAN 640 select SYS_SUPPORTS_HIGHMEM 641 select SYS_SUPPORTS_LITTLE_ENDIAN 642 select ZONE_DMA32 if 64BIT 643 644config SNI_RM 645 bool "SNI RM200/300/400" 646 select FW_ARC if CPU_LITTLE_ENDIAN 647 select FW_ARC32 if CPU_LITTLE_ENDIAN 648 select FW_SNIPROM if CPU_BIG_ENDIAN 649 select ARCH_MAY_HAVE_PC_FDC 650 select BOOT_ELF32 651 select CEVT_R4K 652 select CSRC_R4K 653 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 654 select DMA_NONCOHERENT 655 select GENERIC_ISA_DMA 656 select HAVE_PCSPKR_PLATFORM 657 select HW_HAS_EISA 658 select HW_HAS_PCI 659 select IRQ_CPU 660 select I8253 661 select I8259 662 select ISA 663 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 664 select SYS_HAS_CPU_R4X00 665 select SYS_HAS_CPU_R5000 666 select SYS_HAS_CPU_R10000 667 select R5000_CPU_SCACHE 668 select SYS_HAS_EARLY_PRINTK 669 select SYS_SUPPORTS_32BIT_KERNEL 670 select SYS_SUPPORTS_64BIT_KERNEL 671 select SYS_SUPPORTS_BIG_ENDIAN 672 select SYS_SUPPORTS_HIGHMEM 673 select SYS_SUPPORTS_LITTLE_ENDIAN 674 help 675 The SNI RM200/300/400 are MIPS-based machines manufactured by 676 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 677 Technology and now in turn merged with Fujitsu. Say Y here to 678 support this machine type. 679 680config MACH_TX39XX 681 bool "Toshiba TX39 series based machines" 682 683config MACH_TX49XX 684 bool "Toshiba TX49 series based machines" 685 686config MIKROTIK_RB532 687 bool "Mikrotik RB532 boards" 688 select CEVT_R4K 689 select CSRC_R4K 690 select DMA_NONCOHERENT 691 select HW_HAS_PCI 692 select IRQ_CPU 693 select SYS_HAS_CPU_MIPS32_R1 694 select SYS_SUPPORTS_32BIT_KERNEL 695 select SYS_SUPPORTS_LITTLE_ENDIAN 696 select SWAP_IO_SPACE 697 select BOOT_RAW 698 select ARCH_REQUIRE_GPIOLIB 699 select MIPS_L1_CACHE_SHIFT_4 700 help 701 Support the Mikrotik(tm) RouterBoard 532 series, 702 based on the IDT RC32434 SoC. 703 704config CAVIUM_OCTEON_SOC 705 bool "Cavium Networks Octeon SoC based boards" 706 select CEVT_R4K 707 select 64BIT_PHYS_ADDR 708 select DMA_COHERENT 709 select SYS_SUPPORTS_64BIT_KERNEL 710 select SYS_SUPPORTS_BIG_ENDIAN 711 select EDAC_SUPPORT 712 select SYS_SUPPORTS_HOTPLUG_CPU 713 select SYS_HAS_EARLY_PRINTK 714 select SYS_HAS_CPU_CAVIUM_OCTEON 715 select SWAP_IO_SPACE 716 select HW_HAS_PCI 717 select ZONE_DMA32 718 select USB_ARCH_HAS_OHCI 719 select USB_ARCH_HAS_EHCI 720 select HOLES_IN_ZONE 721 select ARCH_REQUIRE_GPIOLIB 722 help 723 This option supports all of the Octeon reference boards from Cavium 724 Networks. It builds a kernel that dynamically determines the Octeon 725 CPU type and supports all known board reference implementations. 726 Some of the supported boards are: 727 EBT3000 728 EBH3000 729 EBH3100 730 Thunder 731 Kodama 732 Hikari 733 Say Y here for most Octeon reference boards. 734 735config NLM_XLR_BOARD 736 bool "Netlogic XLR/XLS based systems" 737 select BOOT_ELF32 738 select NLM_COMMON 739 select SYS_HAS_CPU_XLR 740 select SYS_SUPPORTS_SMP 741 select HW_HAS_PCI 742 select SWAP_IO_SPACE 743 select SYS_SUPPORTS_32BIT_KERNEL 744 select SYS_SUPPORTS_64BIT_KERNEL 745 select 64BIT_PHYS_ADDR 746 select SYS_SUPPORTS_BIG_ENDIAN 747 select SYS_SUPPORTS_HIGHMEM 748 select DMA_COHERENT 749 select NR_CPUS_DEFAULT_32 750 select CEVT_R4K 751 select CSRC_R4K 752 select IRQ_CPU 753 select ZONE_DMA32 if 64BIT 754 select SYNC_R4K 755 select SYS_HAS_EARLY_PRINTK 756 select USB_ARCH_HAS_OHCI if USB_SUPPORT 757 select USB_ARCH_HAS_EHCI if USB_SUPPORT 758 select SYS_SUPPORTS_ZBOOT 759 select SYS_SUPPORTS_ZBOOT_UART16550 760 help 761 Support for systems based on Netlogic XLR and XLS processors. 762 Say Y here if you have a XLR or XLS based board. 763 764config NLM_XLP_BOARD 765 bool "Netlogic XLP based systems" 766 select BOOT_ELF32 767 select NLM_COMMON 768 select SYS_HAS_CPU_XLP 769 select SYS_SUPPORTS_SMP 770 select HW_HAS_PCI 771 select SYS_SUPPORTS_32BIT_KERNEL 772 select SYS_SUPPORTS_64BIT_KERNEL 773 select 64BIT_PHYS_ADDR 774 select SYS_SUPPORTS_BIG_ENDIAN 775 select SYS_SUPPORTS_LITTLE_ENDIAN 776 select SYS_SUPPORTS_HIGHMEM 777 select DMA_COHERENT 778 select NR_CPUS_DEFAULT_32 779 select CEVT_R4K 780 select CSRC_R4K 781 select IRQ_CPU 782 select ARCH_SUPPORTS_MSI 783 select ZONE_DMA32 if 64BIT 784 select SYNC_R4K 785 select SYS_HAS_EARLY_PRINTK 786 select USE_OF 787 select SYS_SUPPORTS_ZBOOT 788 select SYS_SUPPORTS_ZBOOT_UART16550 789 help 790 This board is based on Netlogic XLP Processor. 791 Say Y here if you have a XLP based board. 792 793endchoice 794 795source "arch/mips/alchemy/Kconfig" 796source "arch/mips/ath79/Kconfig" 797source "arch/mips/bcm47xx/Kconfig" 798source "arch/mips/bcm63xx/Kconfig" 799source "arch/mips/jazz/Kconfig" 800source "arch/mips/jz4740/Kconfig" 801source "arch/mips/lantiq/Kconfig" 802source "arch/mips/lasat/Kconfig" 803source "arch/mips/pmcs-msp71xx/Kconfig" 804source "arch/mips/ralink/Kconfig" 805source "arch/mips/sgi-ip27/Kconfig" 806source "arch/mips/sibyte/Kconfig" 807source "arch/mips/txx9/Kconfig" 808source "arch/mips/vr41xx/Kconfig" 809source "arch/mips/cavium-octeon/Kconfig" 810source "arch/mips/loongson/Kconfig" 811source "arch/mips/loongson1/Kconfig" 812source "arch/mips/netlogic/Kconfig" 813 814endmenu 815 816config RWSEM_GENERIC_SPINLOCK 817 bool 818 default y 819 820config RWSEM_XCHGADD_ALGORITHM 821 bool 822 823config ARCH_HAS_ILOG2_U32 824 bool 825 default n 826 827config ARCH_HAS_ILOG2_U64 828 bool 829 default n 830 831config GENERIC_HWEIGHT 832 bool 833 default y 834 835config GENERIC_CALIBRATE_DELAY 836 bool 837 default y 838 839config SCHED_OMIT_FRAME_POINTER 840 bool 841 default y 842 843# 844# Select some configuration options automatically based on user selections. 845# 846config FW_ARC 847 bool 848 849config ARCH_MAY_HAVE_PC_FDC 850 bool 851 852config BOOT_RAW 853 bool 854 855config CEVT_BCM1480 856 bool 857 858config CEVT_DS1287 859 bool 860 861config CEVT_GT641XX 862 bool 863 864config CEVT_R4K 865 bool 866 867config CEVT_GIC 868 bool 869 870config CEVT_SB1250 871 bool 872 873config CEVT_TXX9 874 bool 875 876config CSRC_BCM1480 877 bool 878 879config CSRC_IOASIC 880 bool 881 882config CSRC_R4K 883 bool 884 885config CSRC_GIC 886 bool 887 888config CSRC_SB1250 889 bool 890 891config GPIO_TXX9 892 select ARCH_REQUIRE_GPIOLIB 893 bool 894 895config FW_CFE 896 bool 897 898config ARCH_DMA_ADDR_T_64BIT 899 def_bool (HIGHMEM && 64BIT_PHYS_ADDR) || 64BIT 900 901config DMA_MAYBE_COHERENT 902 select DMA_NONCOHERENT 903 bool 904 905config DMA_COHERENT 906 bool 907 908config DMA_NONCOHERENT 909 bool 910 select NEED_DMA_MAP_STATE 911 912config NEED_DMA_MAP_STATE 913 bool 914 915config SYS_HAS_EARLY_PRINTK 916 bool 917 918config HOTPLUG_CPU 919 bool "Support for hot-pluggable CPUs" 920 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 921 help 922 Say Y here to allow turning CPUs off and on. CPUs can be 923 controlled through /sys/devices/system/cpu. 924 (Note: power management support will enable this option 925 automatically on SMP systems. ) 926 Say N if you want to disable CPU hotplug. 927 928config SYS_SUPPORTS_HOTPLUG_CPU 929 bool 930 931config I8259 932 bool 933 934config MIPS_BONITO64 935 bool 936 937config MIPS_MSC 938 bool 939 940config MIPS_NILE4 941 bool 942 943config SYNC_R4K 944 bool 945 946config MIPS_MACHINE 947 def_bool n 948 949config NO_IOPORT 950 def_bool n 951 952config GENERIC_ISA_DMA 953 bool 954 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 955 select ISA_DMA_API 956 957config GENERIC_ISA_DMA_SUPPORT_BROKEN 958 bool 959 select GENERIC_ISA_DMA 960 961config ISA_DMA_API 962 bool 963 964config HOLES_IN_ZONE 965 bool 966 967# 968# Endianness selection. Sufficiently obscure so many users don't know what to 969# answer,so we try hard to limit the available choices. Also the use of a 970# choice statement should be more obvious to the user. 971# 972choice 973 prompt "Endianness selection" 974 help 975 Some MIPS machines can be configured for either little or big endian 976 byte order. These modes require different kernels and a different 977 Linux distribution. In general there is one preferred byteorder for a 978 particular system but some systems are just as commonly used in the 979 one or the other endianness. 980 981config CPU_BIG_ENDIAN 982 bool "Big endian" 983 depends on SYS_SUPPORTS_BIG_ENDIAN 984 985config CPU_LITTLE_ENDIAN 986 bool "Little endian" 987 depends on SYS_SUPPORTS_LITTLE_ENDIAN 988 989endchoice 990 991config EXPORT_UASM 992 bool 993 994config SYS_SUPPORTS_APM_EMULATION 995 bool 996 997config SYS_SUPPORTS_BIG_ENDIAN 998 bool 999 1000config SYS_SUPPORTS_LITTLE_ENDIAN 1001 bool 1002 1003config SYS_SUPPORTS_HUGETLBFS 1004 bool 1005 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT 1006 default y 1007 1008config MIPS_HUGE_TLB_SUPPORT 1009 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1010 1011config IRQ_CPU 1012 bool 1013 1014config IRQ_CPU_RM7K 1015 bool 1016 1017config IRQ_MSP_SLP 1018 bool 1019 1020config IRQ_MSP_CIC 1021 bool 1022 1023config IRQ_TXX9 1024 bool 1025 1026config IRQ_GT641XX 1027 bool 1028 1029config IRQ_GIC 1030 bool 1031 1032config PCI_GT64XXX_PCI0 1033 bool 1034 1035config NO_EXCEPT_FILL 1036 bool 1037 1038config SOC_EMMA2RH 1039 bool 1040 select CEVT_R4K 1041 select CSRC_R4K 1042 select DMA_NONCOHERENT 1043 select IRQ_CPU 1044 select SWAP_IO_SPACE 1045 select SYS_HAS_CPU_R5500 1046 select SYS_SUPPORTS_32BIT_KERNEL 1047 select SYS_SUPPORTS_64BIT_KERNEL 1048 select SYS_SUPPORTS_BIG_ENDIAN 1049 1050config SOC_PNX833X 1051 bool 1052 select CEVT_R4K 1053 select CSRC_R4K 1054 select IRQ_CPU 1055 select DMA_NONCOHERENT 1056 select SYS_HAS_CPU_MIPS32_R2 1057 select SYS_SUPPORTS_32BIT_KERNEL 1058 select SYS_SUPPORTS_LITTLE_ENDIAN 1059 select SYS_SUPPORTS_BIG_ENDIAN 1060 select CPU_MIPSR2_IRQ_VI 1061 1062config SOC_PNX8335 1063 bool 1064 select SOC_PNX833X 1065 1066config SWAP_IO_SPACE 1067 bool 1068 1069config SGI_HAS_INDYDOG 1070 bool 1071 1072config SGI_HAS_HAL2 1073 bool 1074 1075config SGI_HAS_SEEQ 1076 bool 1077 1078config SGI_HAS_WD93 1079 bool 1080 1081config SGI_HAS_ZILOG 1082 bool 1083 1084config SGI_HAS_I8042 1085 bool 1086 1087config DEFAULT_SGI_PARTITION 1088 bool 1089 1090config FW_ARC32 1091 bool 1092 1093config FW_SNIPROM 1094 bool 1095 1096config BOOT_ELF32 1097 bool 1098 1099config MIPS_L1_CACHE_SHIFT_4 1100 bool 1101 1102config MIPS_L1_CACHE_SHIFT_5 1103 bool 1104 1105config MIPS_L1_CACHE_SHIFT_6 1106 bool 1107 1108config MIPS_L1_CACHE_SHIFT_7 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 select SYS_HAS_DMA_OPS 1396 select MIPS_L1_CACHE_SHIFT_7 1397 help 1398 The Cavium Octeon processor is a highly integrated chip containing 1399 many ethernet hardware widgets for networking tasks. The processor 1400 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1401 Full details can be found at http://www.caviumnetworks.com. 1402 1403config CPU_BMIPS 1404 bool "Broadcom BMIPS" 1405 depends on SYS_HAS_CPU_BMIPS 1406 select CPU_MIPS32 1407 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1408 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1409 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1410 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1411 select CPU_SUPPORTS_32BIT_KERNEL 1412 select DMA_NONCOHERENT 1413 select IRQ_CPU 1414 select SWAP_IO_SPACE 1415 select WEAK_ORDERING 1416 select CPU_SUPPORTS_HIGHMEM 1417 select CPU_HAS_PREFETCH 1418 help 1419 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1420 1421config CPU_XLR 1422 bool "Netlogic XLR SoC" 1423 depends on SYS_HAS_CPU_XLR 1424 select CPU_SUPPORTS_32BIT_KERNEL 1425 select CPU_SUPPORTS_64BIT_KERNEL 1426 select CPU_SUPPORTS_HIGHMEM 1427 select CPU_SUPPORTS_HUGEPAGES 1428 select WEAK_ORDERING 1429 select WEAK_REORDERING_BEYOND_LLSC 1430 help 1431 Netlogic Microsystems XLR/XLS processors. 1432 1433config CPU_XLP 1434 bool "Netlogic XLP SoC" 1435 depends on SYS_HAS_CPU_XLP 1436 select CPU_SUPPORTS_32BIT_KERNEL 1437 select CPU_SUPPORTS_64BIT_KERNEL 1438 select CPU_SUPPORTS_HIGHMEM 1439 select WEAK_ORDERING 1440 select WEAK_REORDERING_BEYOND_LLSC 1441 select CPU_HAS_PREFETCH 1442 select CPU_MIPSR2 1443 help 1444 Netlogic Microsystems XLP processors. 1445endchoice 1446 1447if CPU_LOONGSON2F 1448config CPU_NOP_WORKAROUNDS 1449 bool 1450 1451config CPU_JUMP_WORKAROUNDS 1452 bool 1453 1454config CPU_LOONGSON2F_WORKAROUNDS 1455 bool "Loongson 2F Workarounds" 1456 default y 1457 select CPU_NOP_WORKAROUNDS 1458 select CPU_JUMP_WORKAROUNDS 1459 help 1460 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1461 require workarounds. Without workarounds the system may hang 1462 unexpectedly. For more information please refer to the gas 1463 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1464 1465 Loongson 2F03 and later have fixed these issues and no workarounds 1466 are needed. The workarounds have no significant side effect on them 1467 but may decrease the performance of the system so this option should 1468 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1469 systems. 1470 1471 If unsure, please say Y. 1472endif # CPU_LOONGSON2F 1473 1474config SYS_SUPPORTS_ZBOOT 1475 bool 1476 select HAVE_KERNEL_GZIP 1477 select HAVE_KERNEL_BZIP2 1478 select HAVE_KERNEL_LZ4 1479 select HAVE_KERNEL_LZMA 1480 select HAVE_KERNEL_LZO 1481 select HAVE_KERNEL_XZ 1482 1483config SYS_SUPPORTS_ZBOOT_UART16550 1484 bool 1485 select SYS_SUPPORTS_ZBOOT 1486 1487config CPU_LOONGSON2 1488 bool 1489 select CPU_SUPPORTS_32BIT_KERNEL 1490 select CPU_SUPPORTS_64BIT_KERNEL 1491 select CPU_SUPPORTS_HIGHMEM 1492 select CPU_SUPPORTS_HUGEPAGES 1493 1494config CPU_LOONGSON1 1495 bool 1496 select CPU_MIPS32 1497 select CPU_MIPSR2 1498 select CPU_HAS_PREFETCH 1499 select CPU_SUPPORTS_32BIT_KERNEL 1500 select CPU_SUPPORTS_HIGHMEM 1501 1502config CPU_BMIPS32_3300 1503 select SMP_UP if SMP 1504 bool 1505 1506config CPU_BMIPS4350 1507 bool 1508 select SYS_SUPPORTS_SMP 1509 select SYS_SUPPORTS_HOTPLUG_CPU 1510 1511config CPU_BMIPS4380 1512 bool 1513 select SYS_SUPPORTS_SMP 1514 select SYS_SUPPORTS_HOTPLUG_CPU 1515 1516config CPU_BMIPS5000 1517 bool 1518 select MIPS_CPU_SCACHE 1519 select SYS_SUPPORTS_SMP 1520 select SYS_SUPPORTS_HOTPLUG_CPU 1521 1522config SYS_HAS_CPU_LOONGSON2E 1523 bool 1524 1525config SYS_HAS_CPU_LOONGSON2F 1526 bool 1527 select CPU_SUPPORTS_CPUFREQ 1528 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1529 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1530 1531config SYS_HAS_CPU_LOONGSON1B 1532 bool 1533 1534config SYS_HAS_CPU_MIPS32_R1 1535 bool 1536 1537config SYS_HAS_CPU_MIPS32_R2 1538 bool 1539 1540config SYS_HAS_CPU_MIPS64_R1 1541 bool 1542 1543config SYS_HAS_CPU_MIPS64_R2 1544 bool 1545 1546config SYS_HAS_CPU_R3000 1547 bool 1548 1549config SYS_HAS_CPU_TX39XX 1550 bool 1551 1552config SYS_HAS_CPU_VR41XX 1553 bool 1554 1555config SYS_HAS_CPU_R4300 1556 bool 1557 1558config SYS_HAS_CPU_R4X00 1559 bool 1560 1561config SYS_HAS_CPU_TX49XX 1562 bool 1563 1564config SYS_HAS_CPU_R5000 1565 bool 1566 1567config SYS_HAS_CPU_R5432 1568 bool 1569 1570config SYS_HAS_CPU_R5500 1571 bool 1572 1573config SYS_HAS_CPU_R6000 1574 bool 1575 1576config SYS_HAS_CPU_NEVADA 1577 bool 1578 1579config SYS_HAS_CPU_R8000 1580 bool 1581 1582config SYS_HAS_CPU_R10000 1583 bool 1584 1585config SYS_HAS_CPU_RM7000 1586 bool 1587 1588config SYS_HAS_CPU_SB1 1589 bool 1590 1591config SYS_HAS_CPU_CAVIUM_OCTEON 1592 bool 1593 1594config SYS_HAS_CPU_BMIPS 1595 bool 1596 1597config SYS_HAS_CPU_BMIPS32_3300 1598 bool 1599 select SYS_HAS_CPU_BMIPS 1600 1601config SYS_HAS_CPU_BMIPS4350 1602 bool 1603 select SYS_HAS_CPU_BMIPS 1604 1605config SYS_HAS_CPU_BMIPS4380 1606 bool 1607 select SYS_HAS_CPU_BMIPS 1608 1609config SYS_HAS_CPU_BMIPS5000 1610 bool 1611 select SYS_HAS_CPU_BMIPS 1612 1613config SYS_HAS_CPU_XLR 1614 bool 1615 1616config SYS_HAS_CPU_XLP 1617 bool 1618 1619# 1620# CPU may reorder R->R, R->W, W->R, W->W 1621# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 1622# 1623config WEAK_ORDERING 1624 bool 1625 1626# 1627# CPU may reorder reads and writes beyond LL/SC 1628# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 1629# 1630config WEAK_REORDERING_BEYOND_LLSC 1631 bool 1632endmenu 1633 1634# 1635# These two indicate any level of the MIPS32 and MIPS64 architecture 1636# 1637config CPU_MIPS32 1638 bool 1639 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 1640 1641config CPU_MIPS64 1642 bool 1643 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 1644 1645# 1646# These two indicate the revision of the architecture, either Release 1 or Release 2 1647# 1648config CPU_MIPSR1 1649 bool 1650 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 1651 1652config CPU_MIPSR2 1653 bool 1654 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 1655 1656config SYS_SUPPORTS_32BIT_KERNEL 1657 bool 1658config SYS_SUPPORTS_64BIT_KERNEL 1659 bool 1660config CPU_SUPPORTS_32BIT_KERNEL 1661 bool 1662config CPU_SUPPORTS_64BIT_KERNEL 1663 bool 1664config CPU_SUPPORTS_CPUFREQ 1665 bool 1666config CPU_SUPPORTS_ADDRWINCFG 1667 bool 1668config CPU_SUPPORTS_HUGEPAGES 1669 bool 1670config CPU_SUPPORTS_UNCACHED_ACCELERATED 1671 bool 1672config MIPS_PGD_C0_CONTEXT 1673 bool 1674 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP 1675 1676# 1677# Set to y for ptrace access to watch registers. 1678# 1679config HARDWARE_WATCHPOINTS 1680 bool 1681 default y if CPU_MIPSR1 || CPU_MIPSR2 1682 1683menu "Kernel type" 1684 1685choice 1686 prompt "Kernel code model" 1687 help 1688 You should only select this option if you have a workload that 1689 actually benefits from 64-bit processing or if your machine has 1690 large memory. You will only be presented a single option in this 1691 menu if your system does not support both 32-bit and 64-bit kernels. 1692 1693config 32BIT 1694 bool "32-bit kernel" 1695 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 1696 select TRAD_SIGNALS 1697 help 1698 Select this option if you want to build a 32-bit kernel. 1699config 64BIT 1700 bool "64-bit kernel" 1701 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 1702 help 1703 Select this option if you want to build a 64-bit kernel. 1704 1705endchoice 1706 1707config KVM_GUEST 1708 bool "KVM Guest Kernel" 1709 depends on BROKEN_ON_SMP 1710 help 1711 Select this option if building a guest kernel for KVM (Trap & Emulate) mode 1712 1713config KVM_HOST_FREQ 1714 int "KVM Host Processor Frequency (MHz)" 1715 depends on KVM_GUEST 1716 default 500 1717 help 1718 Select this option if building a guest kernel for KVM to skip 1719 RTC emulation when determining guest CPU Frequency. Instead, the guest 1720 processor frequency is automatically derived from the host frequency. 1721 1722choice 1723 prompt "Kernel page size" 1724 default PAGE_SIZE_4KB 1725 1726config PAGE_SIZE_4KB 1727 bool "4kB" 1728 depends on !CPU_LOONGSON2 1729 help 1730 This option select the standard 4kB Linux page size. On some 1731 R3000-family processors this is the only available page size. Using 1732 4kB page size will minimize memory consumption and is therefore 1733 recommended for low memory systems. 1734 1735config PAGE_SIZE_8KB 1736 bool "8kB" 1737 depends on CPU_R8000 || CPU_CAVIUM_OCTEON 1738 help 1739 Using 8kB page size will result in higher performance kernel at 1740 the price of higher memory consumption. This option is available 1741 only on R8000 and cnMIPS processors. Note that you will need a 1742 suitable Linux distribution to support this. 1743 1744config PAGE_SIZE_16KB 1745 bool "16kB" 1746 depends on !CPU_R3000 && !CPU_TX39XX 1747 help 1748 Using 16kB page size will result in higher performance kernel at 1749 the price of higher memory consumption. This option is available on 1750 all non-R3000 family processors. Note that you will need a suitable 1751 Linux distribution to support this. 1752 1753config PAGE_SIZE_32KB 1754 bool "32kB" 1755 depends on CPU_CAVIUM_OCTEON 1756 help 1757 Using 32kB page size will result in higher performance kernel at 1758 the price of higher memory consumption. This option is available 1759 only on cnMIPS cores. Note that you will need a suitable Linux 1760 distribution to support this. 1761 1762config PAGE_SIZE_64KB 1763 bool "64kB" 1764 depends on !CPU_R3000 && !CPU_TX39XX 1765 help 1766 Using 64kB page size will result in higher performance kernel at 1767 the price of higher memory consumption. This option is available on 1768 all non-R3000 family processor. Not that at the time of this 1769 writing this option is still high experimental. 1770 1771endchoice 1772 1773config FORCE_MAX_ZONEORDER 1774 int "Maximum zone order" 1775 range 14 64 if HUGETLB_PAGE && PAGE_SIZE_64KB 1776 default "14" if HUGETLB_PAGE && PAGE_SIZE_64KB 1777 range 13 64 if HUGETLB_PAGE && PAGE_SIZE_32KB 1778 default "13" if HUGETLB_PAGE && PAGE_SIZE_32KB 1779 range 12 64 if HUGETLB_PAGE && PAGE_SIZE_16KB 1780 default "12" if HUGETLB_PAGE && PAGE_SIZE_16KB 1781 range 11 64 1782 default "11" 1783 help 1784 The kernel memory allocator divides physically contiguous memory 1785 blocks into "zones", where each zone is a power of two number of 1786 pages. This option selects the largest power of two that the kernel 1787 keeps in the memory allocator. If you need to allocate very large 1788 blocks of physically contiguous memory, then you may need to 1789 increase this value. 1790 1791 This config option is actually maximum order plus one. For example, 1792 a value of 11 means that the largest free memory block is 2^10 pages. 1793 1794 The page size is not necessarily 4KB. Keep this in mind 1795 when choosing a value for this option. 1796 1797config CEVT_GIC 1798 bool "Use GIC global counter for clock events" 1799 depends on IRQ_GIC && !(MIPS_SEAD3 || MIPS_MT_SMTC) 1800 help 1801 Use the GIC global counter for the clock events. The R4K clock 1802 event driver is always present, so if the platform ends up not 1803 detecting a GIC, it will fall back to the R4K timer for the 1804 generation of clock events. 1805 1806config BOARD_SCACHE 1807 bool 1808 1809config IP22_CPU_SCACHE 1810 bool 1811 select BOARD_SCACHE 1812 1813# 1814# Support for a MIPS32 / MIPS64 style S-caches 1815# 1816config MIPS_CPU_SCACHE 1817 bool 1818 select BOARD_SCACHE 1819 select MIPS_L1_CACHE_SHIFT_6 1820 1821config R5000_CPU_SCACHE 1822 bool 1823 select BOARD_SCACHE 1824 1825config RM7000_CPU_SCACHE 1826 bool 1827 select BOARD_SCACHE 1828 1829config SIBYTE_DMA_PAGEOPS 1830 bool "Use DMA to clear/copy pages" 1831 depends on CPU_SB1 1832 help 1833 Instead of using the CPU to zero and copy pages, use a Data Mover 1834 channel. These DMA channels are otherwise unused by the standard 1835 SiByte Linux port. Seems to give a small performance benefit. 1836 1837config CPU_HAS_PREFETCH 1838 bool 1839 1840config CPU_GENERIC_DUMP_TLB 1841 bool 1842 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX) 1843 1844config CPU_R4K_FPU 1845 bool 1846 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 1847 1848config CPU_R4K_CACHE_TLB 1849 bool 1850 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 1851 1852choice 1853 prompt "MIPS MT options" 1854 1855config MIPS_MT_DISABLED 1856 bool "Disable multithreading support" 1857 help 1858 Use this option if your platform does not support the MT ASE 1859 which is hardware multithreading support. On systems without 1860 an MT-enabled processor, this will be the only option that is 1861 available in this menu. 1862 1863config MIPS_MT_SMP 1864 bool "Use 1 TC on each available VPE for SMP" 1865 depends on SYS_SUPPORTS_MULTITHREADING 1866 select CPU_MIPSR2_IRQ_VI 1867 select CPU_MIPSR2_IRQ_EI 1868 select SYNC_R4K 1869 select MIPS_MT 1870 select SMP 1871 select SMP_UP 1872 select SYS_SUPPORTS_SMP 1873 select SYS_SUPPORTS_SCHED_SMT 1874 select MIPS_PERF_SHARED_TC_COUNTERS 1875 help 1876 This is a kernel model which is known as SMVP. This is supported 1877 on cores with the MT ASE and uses the available VPEs to implement 1878 virtual processors which supports SMP. This is equivalent to the 1879 Intel Hyperthreading feature. For further information go to 1880 <http://www.imgtec.com/mips/mips-multithreading.asp>. 1881 1882config MIPS_MT_SMTC 1883 bool "Use all TCs on all VPEs for SMP (DEPRECATED)" 1884 depends on CPU_MIPS32_R2 1885 depends on SYS_SUPPORTS_MULTITHREADING 1886 select CPU_MIPSR2_IRQ_VI 1887 select CPU_MIPSR2_IRQ_EI 1888 select MIPS_MT 1889 select SMP 1890 select SMP_UP 1891 select SYS_SUPPORTS_SMP 1892 select NR_CPUS_DEFAULT_8 1893 help 1894 This is a kernel model which is known as SMTC. This is 1895 supported on cores with the MT ASE and presents all TCs 1896 available on all VPEs to support SMP. For further 1897 information see <http://www.linux-mips.org/wiki/34K#SMTC>. 1898 1899endchoice 1900 1901config MIPS_MT 1902 bool 1903 1904config SCHED_SMT 1905 bool "SMT (multithreading) scheduler support" 1906 depends on SYS_SUPPORTS_SCHED_SMT 1907 default n 1908 help 1909 SMT scheduler support improves the CPU scheduler's decision making 1910 when dealing with MIPS MT enabled cores at a cost of slightly 1911 increased overhead in some places. If unsure say N here. 1912 1913config SYS_SUPPORTS_SCHED_SMT 1914 bool 1915 1916config SYS_SUPPORTS_MULTITHREADING 1917 bool 1918 1919config MIPS_MT_FPAFF 1920 bool "Dynamic FPU affinity for FP-intensive threads" 1921 default y 1922 depends on MIPS_MT_SMP || MIPS_MT_SMTC 1923 1924config MIPS_VPE_LOADER 1925 bool "VPE loader support." 1926 depends on SYS_SUPPORTS_MULTITHREADING && MODULES 1927 select CPU_MIPSR2_IRQ_VI 1928 select CPU_MIPSR2_IRQ_EI 1929 select MIPS_MT 1930 help 1931 Includes a loader for loading an elf relocatable object 1932 onto another VPE and running it. 1933 1934config MIPS_VPE_LOADER_CMP 1935 bool 1936 default "y" 1937 depends on MIPS_VPE_LOADER && MIPS_CMP 1938 1939config MIPS_VPE_LOADER_MT 1940 bool 1941 default "y" 1942 depends on MIPS_VPE_LOADER && !MIPS_CMP 1943 1944config MIPS_MT_SMTC_IM_BACKSTOP 1945 bool "Use per-TC register bits as backstop for inhibited IM bits" 1946 depends on MIPS_MT_SMTC 1947 default n 1948 help 1949 To support multiple TC microthreads acting as "CPUs" within 1950 a VPE, VPE-wide interrupt mask bits must be specially manipulated 1951 during interrupt handling. To support legacy drivers and interrupt 1952 controller management code, SMTC has a "backstop" to track and 1953 if necessary restore the interrupt mask. This has some performance 1954 impact on interrupt service overhead. 1955 1956config MIPS_MT_SMTC_IRQAFF 1957 bool "Support IRQ affinity API" 1958 depends on MIPS_MT_SMTC 1959 default n 1960 help 1961 Enables SMP IRQ affinity API (/proc/irq/*/smp_affinity, etc.) 1962 for SMTC Linux kernel. Requires platform support, of which 1963 an example can be found in the MIPS kernel i8259 and Malta 1964 platform code. Adds some overhead to interrupt dispatch, and 1965 should be used only if you know what you are doing. 1966 1967config MIPS_VPE_LOADER_TOM 1968 bool "Load VPE program into memory hidden from linux" 1969 depends on MIPS_VPE_LOADER 1970 default y 1971 help 1972 The loader can use memory that is present but has been hidden from 1973 Linux using the kernel command line option "mem=xxMB". It's up to 1974 you to ensure the amount you put in the option and the space your 1975 program requires is less or equal to the amount physically present. 1976 1977config MIPS_VPE_APSP_API 1978 bool "Enable support for AP/SP API (RTLX)" 1979 depends on MIPS_VPE_LOADER 1980 help 1981 1982config MIPS_VPE_APSP_API_CMP 1983 bool 1984 default "y" 1985 depends on MIPS_VPE_APSP_API && MIPS_CMP 1986 1987config MIPS_VPE_APSP_API_MT 1988 bool 1989 default "y" 1990 depends on MIPS_VPE_APSP_API && !MIPS_CMP 1991 1992config MIPS_CMP 1993 bool "MIPS CMP support" 1994 depends on SYS_SUPPORTS_MIPS_CMP && MIPS_MT_SMP 1995 select SYNC_R4K 1996 select WEAK_ORDERING 1997 default n 1998 help 1999 Enable Coherency Manager processor (CMP) support. 2000 2001config SB1_PASS_1_WORKAROUNDS 2002 bool 2003 depends on CPU_SB1_PASS_1 2004 default y 2005 2006config SB1_PASS_2_WORKAROUNDS 2007 bool 2008 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2009 default y 2010 2011config SB1_PASS_2_1_WORKAROUNDS 2012 bool 2013 depends on CPU_SB1 && CPU_SB1_PASS_2 2014 default y 2015 2016 2017config 64BIT_PHYS_ADDR 2018 bool 2019 2020config ARCH_PHYS_ADDR_T_64BIT 2021 def_bool 64BIT_PHYS_ADDR 2022 2023config CPU_HAS_SMARTMIPS 2024 depends on SYS_SUPPORTS_SMARTMIPS 2025 bool "Support for the SmartMIPS ASE" 2026 help 2027 SmartMIPS is a extension of the MIPS32 architecture aimed at 2028 increased security at both hardware and software level for 2029 smartcards. Enabling this option will allow proper use of the 2030 SmartMIPS instructions by Linux applications. However a kernel with 2031 this option will not work on a MIPS core without SmartMIPS core. If 2032 you don't know you probably don't have SmartMIPS and should say N 2033 here. 2034 2035config CPU_MICROMIPS 2036 depends on SYS_SUPPORTS_MICROMIPS 2037 bool "Build kernel using microMIPS ISA" 2038 help 2039 When this option is enabled the kernel will be built using the 2040 microMIPS ISA 2041 2042config CPU_HAS_WB 2043 bool 2044 2045config XKS01 2046 bool 2047 2048# 2049# Vectored interrupt mode is an R2 feature 2050# 2051config CPU_MIPSR2_IRQ_VI 2052 bool 2053 2054# 2055# Extended interrupt mode is an R2 feature 2056# 2057config CPU_MIPSR2_IRQ_EI 2058 bool 2059 2060config CPU_HAS_SYNC 2061 bool 2062 depends on !CPU_R3000 2063 default y 2064 2065# 2066# CPU non-features 2067# 2068config CPU_DADDI_WORKAROUNDS 2069 bool 2070 2071config CPU_R4000_WORKAROUNDS 2072 bool 2073 select CPU_R4400_WORKAROUNDS 2074 2075config CPU_R4400_WORKAROUNDS 2076 bool 2077 2078# 2079# - Highmem only makes sense for the 32-bit kernel. 2080# - The current highmem code will only work properly on physically indexed 2081# caches such as R3000, SB1, R7000 or those that look like they're virtually 2082# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2083# moment we protect the user and offer the highmem option only on machines 2084# where it's known to be safe. This will not offer highmem on a few systems 2085# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2086# indexed CPUs but we're playing safe. 2087# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2088# know they might have memory configurations that could make use of highmem 2089# support. 2090# 2091config HIGHMEM 2092 bool "High Memory Support" 2093 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM 2094 2095config CPU_SUPPORTS_HIGHMEM 2096 bool 2097 2098config SYS_SUPPORTS_HIGHMEM 2099 bool 2100 2101config SYS_SUPPORTS_SMARTMIPS 2102 bool 2103 2104config SYS_SUPPORTS_MICROMIPS 2105 bool 2106 2107config ARCH_FLATMEM_ENABLE 2108 def_bool y 2109 depends on !NUMA && !CPU_LOONGSON2 2110 2111config ARCH_DISCONTIGMEM_ENABLE 2112 bool 2113 default y if SGI_IP27 2114 help 2115 Say Y to support efficient handling of discontiguous physical memory, 2116 for architectures which are either NUMA (Non-Uniform Memory Access) 2117 or have huge holes in the physical address space for other reasons. 2118 See <file:Documentation/vm/numa> for more. 2119 2120config ARCH_SPARSEMEM_ENABLE 2121 bool 2122 select SPARSEMEM_STATIC 2123 2124config NUMA 2125 bool "NUMA Support" 2126 depends on SYS_SUPPORTS_NUMA 2127 help 2128 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2129 Access). This option improves performance on systems with more 2130 than two nodes; on two node systems it is generally better to 2131 leave it disabled; on single node systems disable this option 2132 disabled. 2133 2134config SYS_SUPPORTS_NUMA 2135 bool 2136 2137config NODES_SHIFT 2138 int 2139 default "6" 2140 depends on NEED_MULTIPLE_NODES 2141 2142config HW_PERF_EVENTS 2143 bool "Enable hardware performance counter support for perf events" 2144 depends on PERF_EVENTS && !MIPS_MT_SMTC && OPROFILE=n && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP) 2145 default y 2146 help 2147 Enable hardware performance counter support for perf events. If 2148 disabled, perf events will use software events only. 2149 2150source "mm/Kconfig" 2151 2152config SMP 2153 bool "Multi-Processing support" 2154 depends on SYS_SUPPORTS_SMP 2155 help 2156 This enables support for systems with more than one CPU. If you have 2157 a system with only one CPU, like most personal computers, say N. If 2158 you have a system with more than one CPU, say Y. 2159 2160 If you say N here, the kernel will run on single and multiprocessor 2161 machines, but will use only one CPU of a multiprocessor machine. If 2162 you say Y here, the kernel will run on many, but not all, 2163 singleprocessor machines. On a singleprocessor machine, the kernel 2164 will run faster if you say N here. 2165 2166 People using multiprocessor machines who say Y here should also say 2167 Y to "Enhanced Real Time Clock Support", below. 2168 2169 See also the SMP-HOWTO available at 2170 <http://www.tldp.org/docs.html#howto>. 2171 2172 If you don't know what to do here, say N. 2173 2174config SMP_UP 2175 bool 2176 2177config SYS_SUPPORTS_MIPS_CMP 2178 bool 2179 2180config SYS_SUPPORTS_SMP 2181 bool 2182 2183config NR_CPUS_DEFAULT_4 2184 bool 2185 2186config NR_CPUS_DEFAULT_8 2187 bool 2188 2189config NR_CPUS_DEFAULT_16 2190 bool 2191 2192config NR_CPUS_DEFAULT_32 2193 bool 2194 2195config NR_CPUS_DEFAULT_64 2196 bool 2197 2198config NR_CPUS 2199 int "Maximum number of CPUs (2-64)" 2200 range 2 64 2201 depends on SMP 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. As of this writing the exact hardware 2308 interface is strongly in flux, so no good recommendation can be 2309 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 MIPS_O32_FP64_SUPPORT 2365 bool "Support for O32 binaries using 64-bit FP" 2366 depends on 32BIT || MIPS32_O32 2367 default y 2368 help 2369 When this is enabled, the kernel will support use of 64-bit floating 2370 point registers with binaries using the O32 ABI along with the 2371 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 2372 32-bit MIPS systems this support is at the cost of increasing the 2373 size and complexity of the compiled FPU emulator. Thus if you are 2374 running a MIPS32 system and know that none of your userland binaries 2375 will require 64-bit floating point, you may wish to reduce the size 2376 of your kernel & potentially improve FP emulation performance by 2377 saying N here. 2378 2379 If unsure, say Y. 2380 2381config USE_OF 2382 bool 2383 select OF 2384 select OF_EARLY_FLATTREE 2385 select IRQ_DOMAIN 2386 2387endmenu 2388 2389config LOCKDEP_SUPPORT 2390 bool 2391 default y 2392 2393config STACKTRACE_SUPPORT 2394 bool 2395 default y 2396 2397source "init/Kconfig" 2398 2399source "kernel/Kconfig.freezer" 2400 2401menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 2402 2403config HW_HAS_EISA 2404 bool 2405config HW_HAS_PCI 2406 bool 2407 2408config PCI 2409 bool "Support for PCI controller" 2410 depends on HW_HAS_PCI 2411 select PCI_DOMAINS 2412 select NO_GENERIC_PCI_IOPORT_MAP 2413 help 2414 Find out whether you have a PCI motherboard. PCI is the name of a 2415 bus system, i.e. the way the CPU talks to the other stuff inside 2416 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, 2417 say Y, otherwise N. 2418 2419config PCI_DOMAINS 2420 bool 2421 2422source "drivers/pci/Kconfig" 2423 2424source "drivers/pci/pcie/Kconfig" 2425 2426# 2427# ISA support is now enabled via select. Too many systems still have the one 2428# or other ISA chip on the board that users don't know about so don't expect 2429# users to choose the right thing ... 2430# 2431config ISA 2432 bool 2433 2434config EISA 2435 bool "EISA support" 2436 depends on HW_HAS_EISA 2437 select ISA 2438 select GENERIC_ISA_DMA 2439 ---help--- 2440 The Extended Industry Standard Architecture (EISA) bus was 2441 developed as an open alternative to the IBM MicroChannel bus. 2442 2443 The EISA bus provided some of the features of the IBM MicroChannel 2444 bus while maintaining backward compatibility with cards made for 2445 the older ISA bus. The EISA bus saw limited use between 1988 and 2446 1995 when it was made obsolete by the PCI bus. 2447 2448 Say Y here if you are building a kernel for an EISA-based machine. 2449 2450 Otherwise, say N. 2451 2452source "drivers/eisa/Kconfig" 2453 2454config TC 2455 bool "TURBOchannel support" 2456 depends on MACH_DECSTATION 2457 help 2458 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 2459 processors. TURBOchannel programming specifications are available 2460 at: 2461 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 2462 and: 2463 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 2464 Linux driver support status is documented at: 2465 <http://www.linux-mips.org/wiki/DECstation> 2466 2467config MMU 2468 bool 2469 default y 2470 2471config I8253 2472 bool 2473 select CLKSRC_I8253 2474 select CLKEVT_I8253 2475 select MIPS_EXTERNAL_TIMER 2476 2477config ZONE_DMA 2478 bool 2479 2480config ZONE_DMA32 2481 bool 2482 2483source "drivers/pcmcia/Kconfig" 2484 2485source "drivers/pci/hotplug/Kconfig" 2486 2487config RAPIDIO 2488 bool "RapidIO support" 2489 depends on PCI 2490 default n 2491 help 2492 If you say Y here, the kernel will include drivers and 2493 infrastructure code to support RapidIO interconnect devices. 2494 2495source "drivers/rapidio/Kconfig" 2496 2497endmenu 2498 2499menu "Executable file formats" 2500 2501source "fs/Kconfig.binfmt" 2502 2503config TRAD_SIGNALS 2504 bool 2505 2506config MIPS32_COMPAT 2507 bool "Kernel support for Linux/MIPS 32-bit binary compatibility" 2508 depends on 64BIT 2509 help 2510 Select this option if you want Linux/MIPS 32-bit binary 2511 compatibility. Since all software available for Linux/MIPS is 2512 currently 32-bit you should say Y here. 2513 2514config COMPAT 2515 bool 2516 depends on MIPS32_COMPAT 2517 select ARCH_WANT_OLD_COMPAT_IPC 2518 default y 2519 2520config SYSVIPC_COMPAT 2521 bool 2522 depends on COMPAT && SYSVIPC 2523 default y 2524 2525config MIPS32_O32 2526 bool "Kernel support for o32 binaries" 2527 depends on MIPS32_COMPAT 2528 help 2529 Select this option if you want to run o32 binaries. These are pure 2530 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 2531 existing binaries are in this format. 2532 2533 If unsure, say Y. 2534 2535config MIPS32_N32 2536 bool "Kernel support for n32 binaries" 2537 depends on MIPS32_COMPAT 2538 help 2539 Select this option if you want to run n32 binaries. These are 2540 64-bit binaries using 32-bit quantities for addressing and certain 2541 data that would normally be 64-bit. They are used in special 2542 cases. 2543 2544 If unsure, say N. 2545 2546config BINFMT_ELF32 2547 bool 2548 default y if MIPS32_O32 || MIPS32_N32 2549 2550endmenu 2551 2552menu "Power management options" 2553 2554config ARCH_HIBERNATION_POSSIBLE 2555 def_bool y 2556 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 2557 2558config ARCH_SUSPEND_POSSIBLE 2559 def_bool y 2560 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 2561 2562source "kernel/power/Kconfig" 2563 2564endmenu 2565 2566config MIPS_EXTERNAL_TIMER 2567 bool 2568 2569if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 2570menu "CPU Power Management" 2571source "drivers/cpufreq/Kconfig" 2572endmenu 2573endif 2574 2575source "net/Kconfig" 2576 2577source "drivers/Kconfig" 2578 2579source "drivers/firmware/Kconfig" 2580 2581source "fs/Kconfig" 2582 2583source "arch/mips/Kconfig.debug" 2584 2585source "security/Kconfig" 2586 2587source "crypto/Kconfig" 2588 2589source "lib/Kconfig" 2590 2591source "arch/mips/kvm/Kconfig" 2592