1config MIPS 2 bool 3 default y 4 select ARCH_SUPPORTS_UPROBES 5 select ARCH_MIGHT_HAVE_PC_PARPORT 6 select ARCH_MIGHT_HAVE_PC_SERIO 7 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT 8 select ARCH_USE_BUILTIN_BSWAP 9 select HAVE_CONTEXT_TRACKING 10 select HAVE_GENERIC_DMA_COHERENT 11 select HAVE_IDE 12 select HAVE_OPROFILE 13 select HAVE_PERF_EVENTS 14 select PERF_USE_VMALLOC 15 select HAVE_ARCH_KGDB 16 select HAVE_ARCH_SECCOMP_FILTER 17 select HAVE_ARCH_TRACEHOOK 18 select HAVE_CBPF_JIT if !CPU_MICROMIPS 19 select HAVE_FUNCTION_TRACER 20 select HAVE_DYNAMIC_FTRACE 21 select HAVE_FTRACE_MCOUNT_RECORD 22 select HAVE_C_RECORDMCOUNT 23 select HAVE_FUNCTION_GRAPH_TRACER 24 select HAVE_KPROBES 25 select HAVE_KRETPROBES 26 select HAVE_SYSCALL_TRACEPOINTS 27 select HAVE_DEBUG_KMEMLEAK 28 select HAVE_SYSCALL_TRACEPOINTS 29 select ARCH_HAS_ELF_RANDOMIZE 30 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT 31 select RTC_LIB if !MACH_LOONGSON64 32 select GENERIC_ATOMIC64 if !64BIT 33 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE 34 select HAVE_DMA_CONTIGUOUS 35 select HAVE_DMA_API_DEBUG 36 select GENERIC_IRQ_PROBE 37 select GENERIC_IRQ_SHOW 38 select GENERIC_PCI_IOMAP 39 select HAVE_ARCH_JUMP_LABEL 40 select ARCH_WANT_IPC_PARSE_VERSION 41 select IRQ_FORCED_THREADING 42 select HAVE_MEMBLOCK 43 select HAVE_MEMBLOCK_NODE_MAP 44 select ARCH_DISCARD_MEMBLOCK 45 select GENERIC_SMP_IDLE_THREAD 46 select BUILDTIME_EXTABLE_SORT 47 select GENERIC_CLOCKEVENTS 48 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC 49 select GENERIC_CMOS_UPDATE 50 select HAVE_MOD_ARCH_SPECIFIC 51 select HAVE_NMI 52 select VIRT_TO_BUS 53 select MODULES_USE_ELF_REL if MODULES 54 select MODULES_USE_ELF_RELA if MODULES && 64BIT 55 select CLONE_BACKWARDS 56 select HAVE_DEBUG_STACKOVERFLOW 57 select HAVE_CC_STACKPROTECTOR 58 select CPU_PM if CPU_IDLE 59 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST 60 select ARCH_BINFMT_ELF_STATE 61 select SYSCTL_EXCEPTION_TRACE 62 select HAVE_VIRT_CPU_ACCOUNTING_GEN 63 select HAVE_IRQ_TIME_ACCOUNTING 64 select GENERIC_TIME_VSYSCALL 65 select ARCH_CLOCKSOURCE_DATA 66 select HANDLE_DOMAIN_IRQ 67 select HAVE_EXIT_THREAD 68 select HAVE_REGS_AND_STACK_ACCESS_API 69 70menu "Machine selection" 71 72choice 73 prompt "System type" 74 default SGI_IP22 75 76config MIPS_ALCHEMY 77 bool "Alchemy processor based machines" 78 select ARCH_PHYS_ADDR_T_64BIT 79 select CEVT_R4K 80 select CSRC_R4K 81 select IRQ_MIPS_CPU 82 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is 83 select SYS_HAS_CPU_MIPS32_R1 84 select SYS_SUPPORTS_32BIT_KERNEL 85 select SYS_SUPPORTS_APM_EMULATION 86 select GPIOLIB 87 select SYS_SUPPORTS_ZBOOT 88 select COMMON_CLK 89 90config AR7 91 bool "Texas Instruments AR7" 92 select BOOT_ELF32 93 select DMA_NONCOHERENT 94 select CEVT_R4K 95 select CSRC_R4K 96 select IRQ_MIPS_CPU 97 select NO_EXCEPT_FILL 98 select SWAP_IO_SPACE 99 select SYS_HAS_CPU_MIPS32_R1 100 select SYS_HAS_EARLY_PRINTK 101 select SYS_SUPPORTS_32BIT_KERNEL 102 select SYS_SUPPORTS_LITTLE_ENDIAN 103 select SYS_SUPPORTS_MIPS16 104 select SYS_SUPPORTS_ZBOOT_UART16550 105 select GPIOLIB 106 select VLYNQ 107 select HAVE_CLK 108 help 109 Support for the Texas Instruments AR7 System-on-a-Chip 110 family: TNETD7100, 7200 and 7300. 111 112config ATH25 113 bool "Atheros AR231x/AR531x SoC support" 114 select CEVT_R4K 115 select CSRC_R4K 116 select DMA_NONCOHERENT 117 select IRQ_MIPS_CPU 118 select IRQ_DOMAIN 119 select SYS_HAS_CPU_MIPS32_R1 120 select SYS_SUPPORTS_BIG_ENDIAN 121 select SYS_SUPPORTS_32BIT_KERNEL 122 select SYS_HAS_EARLY_PRINTK 123 help 124 Support for Atheros AR231x and Atheros AR531x based boards 125 126config ATH79 127 bool "Atheros AR71XX/AR724X/AR913X based boards" 128 select ARCH_HAS_RESET_CONTROLLER 129 select BOOT_RAW 130 select CEVT_R4K 131 select CSRC_R4K 132 select DMA_NONCOHERENT 133 select GPIOLIB 134 select HAVE_CLK 135 select COMMON_CLK 136 select CLKDEV_LOOKUP 137 select IRQ_MIPS_CPU 138 select MIPS_MACHINE 139 select SYS_HAS_CPU_MIPS32_R2 140 select SYS_HAS_EARLY_PRINTK 141 select SYS_SUPPORTS_32BIT_KERNEL 142 select SYS_SUPPORTS_BIG_ENDIAN 143 select SYS_SUPPORTS_MIPS16 144 select SYS_SUPPORTS_ZBOOT_UART_PROM 145 select USE_OF 146 help 147 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 148 149config BMIPS_GENERIC 150 bool "Broadcom Generic BMIPS kernel" 151 select BOOT_RAW 152 select NO_EXCEPT_FILL 153 select USE_OF 154 select CEVT_R4K 155 select CSRC_R4K 156 select SYNC_R4K 157 select COMMON_CLK 158 select BCM6345_L1_IRQ 159 select BCM7038_L1_IRQ 160 select BCM7120_L2_IRQ 161 select BRCMSTB_L2_IRQ 162 select IRQ_MIPS_CPU 163 select DMA_NONCOHERENT 164 select SYS_SUPPORTS_32BIT_KERNEL 165 select SYS_SUPPORTS_LITTLE_ENDIAN 166 select SYS_SUPPORTS_BIG_ENDIAN 167 select SYS_SUPPORTS_HIGHMEM 168 select SYS_HAS_CPU_BMIPS32_3300 169 select SYS_HAS_CPU_BMIPS4350 170 select SYS_HAS_CPU_BMIPS4380 171 select SYS_HAS_CPU_BMIPS5000 172 select SWAP_IO_SPACE 173 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 174 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 175 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 176 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 177 help 178 Build a generic DT-based kernel image that boots on select 179 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top 180 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN 181 must be set appropriately for your board. 182 183config BCM47XX 184 bool "Broadcom BCM47XX based boards" 185 select BOOT_RAW 186 select CEVT_R4K 187 select CSRC_R4K 188 select DMA_NONCOHERENT 189 select HW_HAS_PCI 190 select IRQ_MIPS_CPU 191 select SYS_HAS_CPU_MIPS32_R1 192 select NO_EXCEPT_FILL 193 select SYS_SUPPORTS_32BIT_KERNEL 194 select SYS_SUPPORTS_LITTLE_ENDIAN 195 select SYS_SUPPORTS_MIPS16 196 select SYS_HAS_EARLY_PRINTK 197 select USE_GENERIC_EARLY_PRINTK_8250 198 select GPIOLIB 199 select LEDS_GPIO_REGISTER 200 select BCM47XX_NVRAM 201 select BCM47XX_SPROM 202 help 203 Support for BCM47XX based boards 204 205config BCM63XX 206 bool "Broadcom BCM63XX based boards" 207 select BOOT_RAW 208 select CEVT_R4K 209 select CSRC_R4K 210 select SYNC_R4K 211 select DMA_NONCOHERENT 212 select IRQ_MIPS_CPU 213 select SYS_SUPPORTS_32BIT_KERNEL 214 select SYS_SUPPORTS_BIG_ENDIAN 215 select SYS_HAS_EARLY_PRINTK 216 select SWAP_IO_SPACE 217 select GPIOLIB 218 select HAVE_CLK 219 select MIPS_L1_CACHE_SHIFT_4 220 help 221 Support for BCM63XX based boards 222 223config MIPS_COBALT 224 bool "Cobalt Server" 225 select CEVT_R4K 226 select CSRC_R4K 227 select CEVT_GT641XX 228 select DMA_NONCOHERENT 229 select HW_HAS_PCI 230 select I8253 231 select I8259 232 select IRQ_MIPS_CPU 233 select IRQ_GT641XX 234 select PCI_GT64XXX_PCI0 235 select PCI 236 select SYS_HAS_CPU_NEVADA 237 select SYS_HAS_EARLY_PRINTK 238 select SYS_SUPPORTS_32BIT_KERNEL 239 select SYS_SUPPORTS_64BIT_KERNEL 240 select SYS_SUPPORTS_LITTLE_ENDIAN 241 select USE_GENERIC_EARLY_PRINTK_8250 242 243config MACH_DECSTATION 244 bool "DECstations" 245 select BOOT_ELF32 246 select CEVT_DS1287 247 select CEVT_R4K if CPU_R4X00 248 select CSRC_IOASIC 249 select CSRC_R4K if CPU_R4X00 250 select CPU_DADDI_WORKAROUNDS if 64BIT 251 select CPU_R4000_WORKAROUNDS if 64BIT 252 select CPU_R4400_WORKAROUNDS if 64BIT 253 select DMA_NONCOHERENT 254 select NO_IOPORT_MAP 255 select IRQ_MIPS_CPU 256 select SYS_HAS_CPU_R3000 257 select SYS_HAS_CPU_R4X00 258 select SYS_SUPPORTS_32BIT_KERNEL 259 select SYS_SUPPORTS_64BIT_KERNEL 260 select SYS_SUPPORTS_LITTLE_ENDIAN 261 select SYS_SUPPORTS_128HZ 262 select SYS_SUPPORTS_256HZ 263 select SYS_SUPPORTS_1024HZ 264 select MIPS_L1_CACHE_SHIFT_4 265 help 266 This enables support for DEC's MIPS based workstations. For details 267 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 268 DECstation porting pages on <http://decstation.unix-ag.org/>. 269 270 If you have one of the following DECstation Models you definitely 271 want to choose R4xx0 for the CPU Type: 272 273 DECstation 5000/50 274 DECstation 5000/150 275 DECstation 5000/260 276 DECsystem 5900/260 277 278 otherwise choose R3000. 279 280config MACH_JAZZ 281 bool "Jazz family of machines" 282 select FW_ARC 283 select FW_ARC32 284 select ARCH_MAY_HAVE_PC_FDC 285 select CEVT_R4K 286 select CSRC_R4K 287 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 288 select GENERIC_ISA_DMA 289 select HAVE_PCSPKR_PLATFORM 290 select IRQ_MIPS_CPU 291 select I8253 292 select I8259 293 select ISA 294 select SYS_HAS_CPU_R4X00 295 select SYS_SUPPORTS_32BIT_KERNEL 296 select SYS_SUPPORTS_64BIT_KERNEL 297 select SYS_SUPPORTS_100HZ 298 help 299 This a family of machines based on the MIPS R4030 chipset which was 300 used by several vendors to build RISC/os and Windows NT workstations. 301 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 302 Olivetti M700-10 workstations. 303 304config MACH_INGENIC 305 bool "Ingenic SoC based machines" 306 select SYS_SUPPORTS_32BIT_KERNEL 307 select SYS_SUPPORTS_LITTLE_ENDIAN 308 select SYS_SUPPORTS_ZBOOT_UART16550 309 select DMA_NONCOHERENT 310 select IRQ_MIPS_CPU 311 select GPIOLIB 312 select COMMON_CLK 313 select GENERIC_IRQ_CHIP 314 select BUILTIN_DTB 315 select USE_OF 316 select LIBFDT 317 318config LANTIQ 319 bool "Lantiq based platforms" 320 select DMA_NONCOHERENT 321 select IRQ_MIPS_CPU 322 select CEVT_R4K 323 select CSRC_R4K 324 select SYS_HAS_CPU_MIPS32_R1 325 select SYS_HAS_CPU_MIPS32_R2 326 select SYS_SUPPORTS_BIG_ENDIAN 327 select SYS_SUPPORTS_32BIT_KERNEL 328 select SYS_SUPPORTS_MIPS16 329 select SYS_SUPPORTS_MULTITHREADING 330 select SYS_HAS_EARLY_PRINTK 331 select GPIOLIB 332 select SWAP_IO_SPACE 333 select BOOT_RAW 334 select CLKDEV_LOOKUP 335 select USE_OF 336 select PINCTRL 337 select PINCTRL_LANTIQ 338 select ARCH_HAS_RESET_CONTROLLER 339 select RESET_CONTROLLER 340 341config LASAT 342 bool "LASAT Networks platforms" 343 select CEVT_R4K 344 select CRC32 345 select CSRC_R4K 346 select DMA_NONCOHERENT 347 select SYS_HAS_EARLY_PRINTK 348 select HW_HAS_PCI 349 select IRQ_MIPS_CPU 350 select PCI_GT64XXX_PCI0 351 select MIPS_NILE4 352 select R5000_CPU_SCACHE 353 select SYS_HAS_CPU_R5000 354 select SYS_SUPPORTS_32BIT_KERNEL 355 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 356 select SYS_SUPPORTS_LITTLE_ENDIAN 357 358config MACH_LOONGSON32 359 bool "Loongson-1 family of machines" 360 select SYS_SUPPORTS_ZBOOT 361 help 362 This enables support for the Loongson-1 family of machines. 363 364 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by 365 the Institute of Computing Technology (ICT), Chinese Academy of 366 Sciences (CAS). 367 368config MACH_LOONGSON64 369 bool "Loongson-2/3 family of machines" 370 select SYS_SUPPORTS_ZBOOT 371 help 372 This enables the support of Loongson-2/3 family of machines. 373 374 Loongson-2 is a family of single-core CPUs and Loongson-3 is a 375 family of multi-core CPUs. They are both 64-bit general-purpose 376 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute 377 of Computing Technology (ICT), Chinese Academy of Sciences (CAS) 378 in the People's Republic of China. The chief architect is Professor 379 Weiwu Hu. 380 381config MACH_PISTACHIO 382 bool "IMG Pistachio SoC based boards" 383 select BOOT_ELF32 384 select BOOT_RAW 385 select CEVT_R4K 386 select CLKSRC_MIPS_GIC 387 select COMMON_CLK 388 select CSRC_R4K 389 select DMA_NONCOHERENT 390 select GPIOLIB 391 select IRQ_MIPS_CPU 392 select LIBFDT 393 select MFD_SYSCON 394 select MIPS_CPU_SCACHE 395 select MIPS_GIC 396 select PINCTRL 397 select REGULATOR 398 select SYS_HAS_CPU_MIPS32_R2 399 select SYS_SUPPORTS_32BIT_KERNEL 400 select SYS_SUPPORTS_LITTLE_ENDIAN 401 select SYS_SUPPORTS_MIPS_CPS 402 select SYS_SUPPORTS_MULTITHREADING 403 select SYS_SUPPORTS_RELOCATABLE 404 select SYS_SUPPORTS_ZBOOT 405 select SYS_HAS_EARLY_PRINTK 406 select USE_GENERIC_EARLY_PRINTK_8250 407 select USE_OF 408 help 409 This enables support for the IMG Pistachio SoC platform. 410 411config MACH_XILFPGA 412 bool "MIPSfpga Xilinx based boards" 413 select BOOT_ELF32 414 select BOOT_RAW 415 select BUILTIN_DTB 416 select CEVT_R4K 417 select COMMON_CLK 418 select CSRC_R4K 419 select GPIOLIB 420 select IRQ_MIPS_CPU 421 select LIBFDT 422 select MIPS_CPU_SCACHE 423 select SYS_HAS_EARLY_PRINTK 424 select SYS_HAS_CPU_MIPS32_R2 425 select SYS_SUPPORTS_32BIT_KERNEL 426 select SYS_SUPPORTS_LITTLE_ENDIAN 427 select SYS_SUPPORTS_ZBOOT_UART16550 428 select USE_OF 429 select USE_GENERIC_EARLY_PRINTK_8250 430 help 431 This enables support for the IMG University Program MIPSfpga platform. 432 433config MIPS_MALTA 434 bool "MIPS Malta board" 435 select ARCH_MAY_HAVE_PC_FDC 436 select BOOT_ELF32 437 select BOOT_RAW 438 select BUILTIN_DTB 439 select CEVT_R4K 440 select CSRC_R4K 441 select CLKSRC_MIPS_GIC 442 select COMMON_CLK 443 select DMA_MAYBE_COHERENT 444 select GENERIC_ISA_DMA 445 select HAVE_PCSPKR_PLATFORM 446 select IRQ_MIPS_CPU 447 select MIPS_GIC 448 select HW_HAS_PCI 449 select I8253 450 select I8259 451 select MIPS_BONITO64 452 select MIPS_CPU_SCACHE 453 select MIPS_L1_CACHE_SHIFT_6 454 select PCI_GT64XXX_PCI0 455 select MIPS_MSC 456 select SMP_UP if SMP 457 select SWAP_IO_SPACE 458 select SYS_HAS_CPU_MIPS32_R1 459 select SYS_HAS_CPU_MIPS32_R2 460 select SYS_HAS_CPU_MIPS32_R3_5 461 select SYS_HAS_CPU_MIPS32_R5 462 select SYS_HAS_CPU_MIPS32_R6 463 select SYS_HAS_CPU_MIPS64_R1 464 select SYS_HAS_CPU_MIPS64_R2 465 select SYS_HAS_CPU_MIPS64_R6 466 select SYS_HAS_CPU_NEVADA 467 select SYS_HAS_CPU_RM7000 468 select SYS_SUPPORTS_32BIT_KERNEL 469 select SYS_SUPPORTS_64BIT_KERNEL 470 select SYS_SUPPORTS_BIG_ENDIAN 471 select SYS_SUPPORTS_HIGHMEM 472 select SYS_SUPPORTS_LITTLE_ENDIAN 473 select SYS_SUPPORTS_MICROMIPS 474 select SYS_SUPPORTS_MIPS_CMP 475 select SYS_SUPPORTS_MIPS_CPS 476 select SYS_SUPPORTS_MIPS16 477 select SYS_SUPPORTS_MULTITHREADING 478 select SYS_SUPPORTS_SMARTMIPS 479 select SYS_SUPPORTS_ZBOOT 480 select SYS_SUPPORTS_RELOCATABLE 481 select USE_OF 482 select ZONE_DMA32 if 64BIT 483 select BUILTIN_DTB 484 select LIBFDT 485 help 486 This enables support for the MIPS Technologies Malta evaluation 487 board. 488 489config MACH_PIC32 490 bool "Microchip PIC32 Family" 491 help 492 This enables support for the Microchip PIC32 family of platforms. 493 494 Microchip PIC32 is a family of general-purpose 32 bit MIPS core 495 microcontrollers. 496 497config MIPS_SEAD3 498 bool "MIPS SEAD3 board" 499 select BOOT_ELF32 500 select BOOT_RAW 501 select BUILTIN_DTB 502 select CEVT_R4K 503 select CSRC_R4K 504 select CLKSRC_MIPS_GIC 505 select COMMON_CLK 506 select CPU_MIPSR2_IRQ_VI 507 select CPU_MIPSR2_IRQ_EI 508 select DMA_NONCOHERENT 509 select IRQ_MIPS_CPU 510 select MIPS_GIC 511 select LIBFDT 512 select MIPS_MSC 513 select SYS_HAS_CPU_MIPS32_R1 514 select SYS_HAS_CPU_MIPS32_R2 515 select SYS_HAS_CPU_MIPS32_R6 516 select SYS_HAS_CPU_MIPS64_R1 517 select SYS_HAS_EARLY_PRINTK 518 select SYS_SUPPORTS_32BIT_KERNEL 519 select SYS_SUPPORTS_64BIT_KERNEL 520 select SYS_SUPPORTS_BIG_ENDIAN 521 select SYS_SUPPORTS_LITTLE_ENDIAN 522 select SYS_SUPPORTS_SMARTMIPS 523 select SYS_SUPPORTS_MICROMIPS 524 select SYS_SUPPORTS_MIPS16 525 select SYS_SUPPORTS_RELOCATABLE 526 select USB_EHCI_BIG_ENDIAN_DESC 527 select USB_EHCI_BIG_ENDIAN_MMIO 528 select USE_OF 529 help 530 This enables support for the MIPS Technologies SEAD3 evaluation 531 board. 532 533config NEC_MARKEINS 534 bool "NEC EMMA2RH Mark-eins board" 535 select SOC_EMMA2RH 536 select HW_HAS_PCI 537 help 538 This enables support for the NEC Electronics Mark-eins boards. 539 540config MACH_VR41XX 541 bool "NEC VR4100 series based machines" 542 select CEVT_R4K 543 select CSRC_R4K 544 select SYS_HAS_CPU_VR41XX 545 select SYS_SUPPORTS_MIPS16 546 select GPIOLIB 547 548config NXP_STB220 549 bool "NXP STB220 board" 550 select SOC_PNX833X 551 help 552 Support for NXP Semiconductors STB220 Development Board. 553 554config NXP_STB225 555 bool "NXP 225 board" 556 select SOC_PNX833X 557 select SOC_PNX8335 558 help 559 Support for NXP Semiconductors STB225 Development Board. 560 561config PMC_MSP 562 bool "PMC-Sierra MSP chipsets" 563 select CEVT_R4K 564 select CSRC_R4K 565 select DMA_NONCOHERENT 566 select SWAP_IO_SPACE 567 select NO_EXCEPT_FILL 568 select BOOT_RAW 569 select SYS_HAS_CPU_MIPS32_R1 570 select SYS_HAS_CPU_MIPS32_R2 571 select SYS_SUPPORTS_32BIT_KERNEL 572 select SYS_SUPPORTS_BIG_ENDIAN 573 select SYS_SUPPORTS_MIPS16 574 select IRQ_MIPS_CPU 575 select SERIAL_8250 576 select SERIAL_8250_CONSOLE 577 select USB_EHCI_BIG_ENDIAN_MMIO 578 select USB_EHCI_BIG_ENDIAN_DESC 579 help 580 This adds support for the PMC-Sierra family of Multi-Service 581 Processor System-On-A-Chips. These parts include a number 582 of integrated peripherals, interfaces and DSPs in addition to 583 a variety of MIPS cores. 584 585config RALINK 586 bool "Ralink based machines" 587 select CEVT_R4K 588 select CSRC_R4K 589 select BOOT_RAW 590 select DMA_NONCOHERENT 591 select IRQ_MIPS_CPU 592 select USE_OF 593 select SYS_HAS_CPU_MIPS32_R1 594 select SYS_HAS_CPU_MIPS32_R2 595 select SYS_SUPPORTS_32BIT_KERNEL 596 select SYS_SUPPORTS_LITTLE_ENDIAN 597 select SYS_SUPPORTS_MIPS16 598 select SYS_HAS_EARLY_PRINTK 599 select CLKDEV_LOOKUP 600 select ARCH_HAS_RESET_CONTROLLER 601 select RESET_CONTROLLER 602 603config SGI_IP22 604 bool "SGI IP22 (Indy/Indigo2)" 605 select FW_ARC 606 select FW_ARC32 607 select BOOT_ELF32 608 select CEVT_R4K 609 select CSRC_R4K 610 select DEFAULT_SGI_PARTITION 611 select DMA_NONCOHERENT 612 select HW_HAS_EISA 613 select I8253 614 select I8259 615 select IP22_CPU_SCACHE 616 select IRQ_MIPS_CPU 617 select GENERIC_ISA_DMA_SUPPORT_BROKEN 618 select SGI_HAS_I8042 619 select SGI_HAS_INDYDOG 620 select SGI_HAS_HAL2 621 select SGI_HAS_SEEQ 622 select SGI_HAS_WD93 623 select SGI_HAS_ZILOG 624 select SWAP_IO_SPACE 625 select SYS_HAS_CPU_R4X00 626 select SYS_HAS_CPU_R5000 627 # 628 # Disable EARLY_PRINTK for now since it leads to overwritten prom 629 # memory during early boot on some machines. 630 # 631 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 632 # for a more details discussion 633 # 634 # select SYS_HAS_EARLY_PRINTK 635 select SYS_SUPPORTS_32BIT_KERNEL 636 select SYS_SUPPORTS_64BIT_KERNEL 637 select SYS_SUPPORTS_BIG_ENDIAN 638 select MIPS_L1_CACHE_SHIFT_7 639 help 640 This are the SGI Indy, Challenge S and Indigo2, as well as certain 641 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 642 that runs on these, say Y here. 643 644config SGI_IP27 645 bool "SGI IP27 (Origin200/2000)" 646 select FW_ARC 647 select FW_ARC64 648 select BOOT_ELF64 649 select DEFAULT_SGI_PARTITION 650 select DMA_COHERENT 651 select SYS_HAS_EARLY_PRINTK 652 select HW_HAS_PCI 653 select NR_CPUS_DEFAULT_64 654 select SYS_HAS_CPU_R10000 655 select SYS_SUPPORTS_64BIT_KERNEL 656 select SYS_SUPPORTS_BIG_ENDIAN 657 select SYS_SUPPORTS_NUMA 658 select SYS_SUPPORTS_SMP 659 select MIPS_L1_CACHE_SHIFT_7 660 help 661 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 662 workstations. To compile a Linux kernel that runs on these, say Y 663 here. 664 665config SGI_IP28 666 bool "SGI IP28 (Indigo2 R10k)" 667 select FW_ARC 668 select FW_ARC64 669 select BOOT_ELF64 670 select CEVT_R4K 671 select CSRC_R4K 672 select DEFAULT_SGI_PARTITION 673 select DMA_NONCOHERENT 674 select GENERIC_ISA_DMA_SUPPORT_BROKEN 675 select IRQ_MIPS_CPU 676 select HW_HAS_EISA 677 select I8253 678 select I8259 679 select SGI_HAS_I8042 680 select SGI_HAS_INDYDOG 681 select SGI_HAS_HAL2 682 select SGI_HAS_SEEQ 683 select SGI_HAS_WD93 684 select SGI_HAS_ZILOG 685 select SWAP_IO_SPACE 686 select SYS_HAS_CPU_R10000 687 # 688 # Disable EARLY_PRINTK for now since it leads to overwritten prom 689 # memory during early boot on some machines. 690 # 691 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 692 # for a more details discussion 693 # 694 # select SYS_HAS_EARLY_PRINTK 695 select SYS_SUPPORTS_64BIT_KERNEL 696 select SYS_SUPPORTS_BIG_ENDIAN 697 select MIPS_L1_CACHE_SHIFT_7 698 help 699 This is the SGI Indigo2 with R10000 processor. To compile a Linux 700 kernel that runs on these, say Y here. 701 702config SGI_IP32 703 bool "SGI IP32 (O2)" 704 select FW_ARC 705 select FW_ARC32 706 select BOOT_ELF32 707 select CEVT_R4K 708 select CSRC_R4K 709 select DMA_NONCOHERENT 710 select HW_HAS_PCI 711 select IRQ_MIPS_CPU 712 select R5000_CPU_SCACHE 713 select RM7000_CPU_SCACHE 714 select SYS_HAS_CPU_R5000 715 select SYS_HAS_CPU_R10000 if BROKEN 716 select SYS_HAS_CPU_RM7000 717 select SYS_HAS_CPU_NEVADA 718 select SYS_SUPPORTS_64BIT_KERNEL 719 select SYS_SUPPORTS_BIG_ENDIAN 720 help 721 If you want this kernel to run on SGI O2 workstation, say Y here. 722 723config SIBYTE_CRHINE 724 bool "Sibyte BCM91120C-CRhine" 725 select BOOT_ELF32 726 select DMA_COHERENT 727 select SIBYTE_BCM1120 728 select SWAP_IO_SPACE 729 select SYS_HAS_CPU_SB1 730 select SYS_SUPPORTS_BIG_ENDIAN 731 select SYS_SUPPORTS_LITTLE_ENDIAN 732 733config SIBYTE_CARMEL 734 bool "Sibyte BCM91120x-Carmel" 735 select BOOT_ELF32 736 select DMA_COHERENT 737 select SIBYTE_BCM1120 738 select SWAP_IO_SPACE 739 select SYS_HAS_CPU_SB1 740 select SYS_SUPPORTS_BIG_ENDIAN 741 select SYS_SUPPORTS_LITTLE_ENDIAN 742 743config SIBYTE_CRHONE 744 bool "Sibyte BCM91125C-CRhone" 745 select BOOT_ELF32 746 select DMA_COHERENT 747 select SIBYTE_BCM1125 748 select SWAP_IO_SPACE 749 select SYS_HAS_CPU_SB1 750 select SYS_SUPPORTS_BIG_ENDIAN 751 select SYS_SUPPORTS_HIGHMEM 752 select SYS_SUPPORTS_LITTLE_ENDIAN 753 754config SIBYTE_RHONE 755 bool "Sibyte BCM91125E-Rhone" 756 select BOOT_ELF32 757 select DMA_COHERENT 758 select SIBYTE_BCM1125H 759 select SWAP_IO_SPACE 760 select SYS_HAS_CPU_SB1 761 select SYS_SUPPORTS_BIG_ENDIAN 762 select SYS_SUPPORTS_LITTLE_ENDIAN 763 764config SIBYTE_SWARM 765 bool "Sibyte BCM91250A-SWARM" 766 select BOOT_ELF32 767 select DMA_COHERENT 768 select HAVE_PATA_PLATFORM 769 select SIBYTE_SB1250 770 select SWAP_IO_SPACE 771 select SYS_HAS_CPU_SB1 772 select SYS_SUPPORTS_BIG_ENDIAN 773 select SYS_SUPPORTS_HIGHMEM 774 select SYS_SUPPORTS_LITTLE_ENDIAN 775 select ZONE_DMA32 if 64BIT 776 777config SIBYTE_LITTLESUR 778 bool "Sibyte BCM91250C2-LittleSur" 779 select BOOT_ELF32 780 select DMA_COHERENT 781 select HAVE_PATA_PLATFORM 782 select SIBYTE_SB1250 783 select SWAP_IO_SPACE 784 select SYS_HAS_CPU_SB1 785 select SYS_SUPPORTS_BIG_ENDIAN 786 select SYS_SUPPORTS_HIGHMEM 787 select SYS_SUPPORTS_LITTLE_ENDIAN 788 789config SIBYTE_SENTOSA 790 bool "Sibyte BCM91250E-Sentosa" 791 select BOOT_ELF32 792 select DMA_COHERENT 793 select SIBYTE_SB1250 794 select SWAP_IO_SPACE 795 select SYS_HAS_CPU_SB1 796 select SYS_SUPPORTS_BIG_ENDIAN 797 select SYS_SUPPORTS_LITTLE_ENDIAN 798 799config SIBYTE_BIGSUR 800 bool "Sibyte BCM91480B-BigSur" 801 select BOOT_ELF32 802 select DMA_COHERENT 803 select NR_CPUS_DEFAULT_4 804 select SIBYTE_BCM1x80 805 select SWAP_IO_SPACE 806 select SYS_HAS_CPU_SB1 807 select SYS_SUPPORTS_BIG_ENDIAN 808 select SYS_SUPPORTS_HIGHMEM 809 select SYS_SUPPORTS_LITTLE_ENDIAN 810 select ZONE_DMA32 if 64BIT 811 812config SNI_RM 813 bool "SNI RM200/300/400" 814 select FW_ARC if CPU_LITTLE_ENDIAN 815 select FW_ARC32 if CPU_LITTLE_ENDIAN 816 select FW_SNIPROM if CPU_BIG_ENDIAN 817 select ARCH_MAY_HAVE_PC_FDC 818 select BOOT_ELF32 819 select CEVT_R4K 820 select CSRC_R4K 821 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 822 select DMA_NONCOHERENT 823 select GENERIC_ISA_DMA 824 select HAVE_PCSPKR_PLATFORM 825 select HW_HAS_EISA 826 select HW_HAS_PCI 827 select IRQ_MIPS_CPU 828 select I8253 829 select I8259 830 select ISA 831 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 832 select SYS_HAS_CPU_R4X00 833 select SYS_HAS_CPU_R5000 834 select SYS_HAS_CPU_R10000 835 select R5000_CPU_SCACHE 836 select SYS_HAS_EARLY_PRINTK 837 select SYS_SUPPORTS_32BIT_KERNEL 838 select SYS_SUPPORTS_64BIT_KERNEL 839 select SYS_SUPPORTS_BIG_ENDIAN 840 select SYS_SUPPORTS_HIGHMEM 841 select SYS_SUPPORTS_LITTLE_ENDIAN 842 help 843 The SNI RM200/300/400 are MIPS-based machines manufactured by 844 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 845 Technology and now in turn merged with Fujitsu. Say Y here to 846 support this machine type. 847 848config MACH_TX39XX 849 bool "Toshiba TX39 series based machines" 850 851config MACH_TX49XX 852 bool "Toshiba TX49 series based machines" 853 854config MIKROTIK_RB532 855 bool "Mikrotik RB532 boards" 856 select CEVT_R4K 857 select CSRC_R4K 858 select DMA_NONCOHERENT 859 select HW_HAS_PCI 860 select IRQ_MIPS_CPU 861 select SYS_HAS_CPU_MIPS32_R1 862 select SYS_SUPPORTS_32BIT_KERNEL 863 select SYS_SUPPORTS_LITTLE_ENDIAN 864 select SWAP_IO_SPACE 865 select BOOT_RAW 866 select GPIOLIB 867 select MIPS_L1_CACHE_SHIFT_4 868 help 869 Support the Mikrotik(tm) RouterBoard 532 series, 870 based on the IDT RC32434 SoC. 871 872config CAVIUM_OCTEON_SOC 873 bool "Cavium Networks Octeon SoC based boards" 874 select CEVT_R4K 875 select ARCH_PHYS_ADDR_T_64BIT 876 select DMA_COHERENT 877 select SYS_SUPPORTS_64BIT_KERNEL 878 select SYS_SUPPORTS_BIG_ENDIAN 879 select EDAC_SUPPORT 880 select EDAC_ATOMIC_SCRUB 881 select SYS_SUPPORTS_LITTLE_ENDIAN 882 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN 883 select SYS_HAS_EARLY_PRINTK 884 select SYS_HAS_CPU_CAVIUM_OCTEON 885 select HW_HAS_PCI 886 select ZONE_DMA32 887 select HOLES_IN_ZONE 888 select GPIOLIB 889 select LIBFDT 890 select USE_OF 891 select ARCH_SPARSEMEM_ENABLE 892 select SYS_SUPPORTS_SMP 893 select NR_CPUS_DEFAULT_16 894 select BUILTIN_DTB 895 select MTD_COMPLEX_MAPPINGS 896 help 897 This option supports all of the Octeon reference boards from Cavium 898 Networks. It builds a kernel that dynamically determines the Octeon 899 CPU type and supports all known board reference implementations. 900 Some of the supported boards are: 901 EBT3000 902 EBH3000 903 EBH3100 904 Thunder 905 Kodama 906 Hikari 907 Say Y here for most Octeon reference boards. 908 909config NLM_XLR_BOARD 910 bool "Netlogic XLR/XLS based systems" 911 select BOOT_ELF32 912 select NLM_COMMON 913 select SYS_HAS_CPU_XLR 914 select SYS_SUPPORTS_SMP 915 select HW_HAS_PCI 916 select SWAP_IO_SPACE 917 select SYS_SUPPORTS_32BIT_KERNEL 918 select SYS_SUPPORTS_64BIT_KERNEL 919 select ARCH_PHYS_ADDR_T_64BIT 920 select SYS_SUPPORTS_BIG_ENDIAN 921 select SYS_SUPPORTS_HIGHMEM 922 select DMA_COHERENT 923 select NR_CPUS_DEFAULT_32 924 select CEVT_R4K 925 select CSRC_R4K 926 select IRQ_MIPS_CPU 927 select ZONE_DMA32 if 64BIT 928 select SYNC_R4K 929 select SYS_HAS_EARLY_PRINTK 930 select SYS_SUPPORTS_ZBOOT 931 select SYS_SUPPORTS_ZBOOT_UART16550 932 help 933 Support for systems based on Netlogic XLR and XLS processors. 934 Say Y here if you have a XLR or XLS based board. 935 936config NLM_XLP_BOARD 937 bool "Netlogic XLP based systems" 938 select BOOT_ELF32 939 select NLM_COMMON 940 select SYS_HAS_CPU_XLP 941 select SYS_SUPPORTS_SMP 942 select HW_HAS_PCI 943 select SYS_SUPPORTS_32BIT_KERNEL 944 select SYS_SUPPORTS_64BIT_KERNEL 945 select ARCH_PHYS_ADDR_T_64BIT 946 select GPIOLIB 947 select SYS_SUPPORTS_BIG_ENDIAN 948 select SYS_SUPPORTS_LITTLE_ENDIAN 949 select SYS_SUPPORTS_HIGHMEM 950 select DMA_COHERENT 951 select NR_CPUS_DEFAULT_32 952 select CEVT_R4K 953 select CSRC_R4K 954 select IRQ_MIPS_CPU 955 select ZONE_DMA32 if 64BIT 956 select SYNC_R4K 957 select SYS_HAS_EARLY_PRINTK 958 select USE_OF 959 select SYS_SUPPORTS_ZBOOT 960 select SYS_SUPPORTS_ZBOOT_UART16550 961 help 962 This board is based on Netlogic XLP Processor. 963 Say Y here if you have a XLP based board. 964 965config MIPS_PARAVIRT 966 bool "Para-Virtualized guest system" 967 select CEVT_R4K 968 select CSRC_R4K 969 select DMA_COHERENT 970 select SYS_SUPPORTS_64BIT_KERNEL 971 select SYS_SUPPORTS_32BIT_KERNEL 972 select SYS_SUPPORTS_BIG_ENDIAN 973 select SYS_SUPPORTS_SMP 974 select NR_CPUS_DEFAULT_4 975 select SYS_HAS_EARLY_PRINTK 976 select SYS_HAS_CPU_MIPS32_R2 977 select SYS_HAS_CPU_MIPS64_R2 978 select SYS_HAS_CPU_CAVIUM_OCTEON 979 select HW_HAS_PCI 980 select SWAP_IO_SPACE 981 help 982 This option supports guest running under ???? 983 984endchoice 985 986source "arch/mips/alchemy/Kconfig" 987source "arch/mips/ath25/Kconfig" 988source "arch/mips/ath79/Kconfig" 989source "arch/mips/bcm47xx/Kconfig" 990source "arch/mips/bcm63xx/Kconfig" 991source "arch/mips/bmips/Kconfig" 992source "arch/mips/jazz/Kconfig" 993source "arch/mips/jz4740/Kconfig" 994source "arch/mips/lantiq/Kconfig" 995source "arch/mips/lasat/Kconfig" 996source "arch/mips/pic32/Kconfig" 997source "arch/mips/pistachio/Kconfig" 998source "arch/mips/pmcs-msp71xx/Kconfig" 999source "arch/mips/ralink/Kconfig" 1000source "arch/mips/sgi-ip27/Kconfig" 1001source "arch/mips/sibyte/Kconfig" 1002source "arch/mips/txx9/Kconfig" 1003source "arch/mips/vr41xx/Kconfig" 1004source "arch/mips/cavium-octeon/Kconfig" 1005source "arch/mips/loongson32/Kconfig" 1006source "arch/mips/loongson64/Kconfig" 1007source "arch/mips/netlogic/Kconfig" 1008source "arch/mips/paravirt/Kconfig" 1009source "arch/mips/xilfpga/Kconfig" 1010 1011endmenu 1012 1013config RWSEM_GENERIC_SPINLOCK 1014 bool 1015 default y 1016 1017config RWSEM_XCHGADD_ALGORITHM 1018 bool 1019 1020config ARCH_HAS_ILOG2_U32 1021 bool 1022 default n 1023 1024config ARCH_HAS_ILOG2_U64 1025 bool 1026 default n 1027 1028config GENERIC_HWEIGHT 1029 bool 1030 default y 1031 1032config GENERIC_CALIBRATE_DELAY 1033 bool 1034 default y 1035 1036config SCHED_OMIT_FRAME_POINTER 1037 bool 1038 default y 1039 1040# 1041# Select some configuration options automatically based on user selections. 1042# 1043config FW_ARC 1044 bool 1045 1046config ARCH_MAY_HAVE_PC_FDC 1047 bool 1048 1049config BOOT_RAW 1050 bool 1051 1052config CEVT_BCM1480 1053 bool 1054 1055config CEVT_DS1287 1056 bool 1057 1058config CEVT_GT641XX 1059 bool 1060 1061config CEVT_R4K 1062 bool 1063 1064config CEVT_SB1250 1065 bool 1066 1067config CEVT_TXX9 1068 bool 1069 1070config CSRC_BCM1480 1071 bool 1072 1073config CSRC_IOASIC 1074 bool 1075 1076config CSRC_R4K 1077 bool 1078 1079config CSRC_SB1250 1080 bool 1081 1082config MIPS_CLOCK_VSYSCALL 1083 def_bool CSRC_R4K || CLKSRC_MIPS_GIC 1084 1085config GPIO_TXX9 1086 select GPIOLIB 1087 bool 1088 1089config FW_CFE 1090 bool 1091 1092config ARCH_DMA_ADDR_T_64BIT 1093 def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT 1094 1095config ARCH_SUPPORTS_UPROBES 1096 bool 1097 1098config DMA_MAYBE_COHERENT 1099 select DMA_NONCOHERENT 1100 bool 1101 1102config DMA_COHERENT 1103 bool 1104 1105config DMA_NONCOHERENT 1106 bool 1107 select NEED_DMA_MAP_STATE 1108 1109config NEED_DMA_MAP_STATE 1110 bool 1111 1112config SYS_HAS_EARLY_PRINTK 1113 bool 1114 1115config SYS_SUPPORTS_HOTPLUG_CPU 1116 bool 1117 1118config MIPS_BONITO64 1119 bool 1120 1121config MIPS_MSC 1122 bool 1123 1124config MIPS_NILE4 1125 bool 1126 1127config SYNC_R4K 1128 bool 1129 1130config MIPS_MACHINE 1131 def_bool n 1132 1133config NO_IOPORT_MAP 1134 def_bool n 1135 1136config GENERIC_CSUM 1137 bool 1138 1139config GENERIC_ISA_DMA 1140 bool 1141 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1142 select ISA_DMA_API 1143 1144config GENERIC_ISA_DMA_SUPPORT_BROKEN 1145 bool 1146 select GENERIC_ISA_DMA 1147 1148config ISA_DMA_API 1149 bool 1150 1151config HOLES_IN_ZONE 1152 bool 1153 1154config SYS_SUPPORTS_RELOCATABLE 1155 bool 1156 help 1157 Selected if the platform supports relocating the kernel. 1158 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF 1159 to allow access to command line and entropy sources. 1160 1161# 1162# Endianness selection. Sufficiently obscure so many users don't know what to 1163# answer,so we try hard to limit the available choices. Also the use of a 1164# choice statement should be more obvious to the user. 1165# 1166choice 1167 prompt "Endianness selection" 1168 help 1169 Some MIPS machines can be configured for either little or big endian 1170 byte order. These modes require different kernels and a different 1171 Linux distribution. In general there is one preferred byteorder for a 1172 particular system but some systems are just as commonly used in the 1173 one or the other endianness. 1174 1175config CPU_BIG_ENDIAN 1176 bool "Big endian" 1177 depends on SYS_SUPPORTS_BIG_ENDIAN 1178 1179config CPU_LITTLE_ENDIAN 1180 bool "Little endian" 1181 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1182 1183endchoice 1184 1185config EXPORT_UASM 1186 bool 1187 1188config SYS_SUPPORTS_APM_EMULATION 1189 bool 1190 1191config SYS_SUPPORTS_BIG_ENDIAN 1192 bool 1193 1194config SYS_SUPPORTS_LITTLE_ENDIAN 1195 bool 1196 1197config SYS_SUPPORTS_HUGETLBFS 1198 bool 1199 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT 1200 default y 1201 1202config MIPS_HUGE_TLB_SUPPORT 1203 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1204 1205config IRQ_CPU_RM7K 1206 bool 1207 1208config IRQ_MSP_SLP 1209 bool 1210 1211config IRQ_MSP_CIC 1212 bool 1213 1214config IRQ_TXX9 1215 bool 1216 1217config IRQ_GT641XX 1218 bool 1219 1220config PCI_GT64XXX_PCI0 1221 bool 1222 1223config NO_EXCEPT_FILL 1224 bool 1225 1226config SOC_EMMA2RH 1227 bool 1228 select CEVT_R4K 1229 select CSRC_R4K 1230 select DMA_NONCOHERENT 1231 select IRQ_MIPS_CPU 1232 select SWAP_IO_SPACE 1233 select SYS_HAS_CPU_R5500 1234 select SYS_SUPPORTS_32BIT_KERNEL 1235 select SYS_SUPPORTS_64BIT_KERNEL 1236 select SYS_SUPPORTS_BIG_ENDIAN 1237 1238config SOC_PNX833X 1239 bool 1240 select CEVT_R4K 1241 select CSRC_R4K 1242 select IRQ_MIPS_CPU 1243 select DMA_NONCOHERENT 1244 select SYS_HAS_CPU_MIPS32_R2 1245 select SYS_SUPPORTS_32BIT_KERNEL 1246 select SYS_SUPPORTS_LITTLE_ENDIAN 1247 select SYS_SUPPORTS_BIG_ENDIAN 1248 select SYS_SUPPORTS_MIPS16 1249 select CPU_MIPSR2_IRQ_VI 1250 1251config SOC_PNX8335 1252 bool 1253 select SOC_PNX833X 1254 1255config MIPS_SPRAM 1256 bool 1257 1258config SWAP_IO_SPACE 1259 bool 1260 1261config SGI_HAS_INDYDOG 1262 bool 1263 1264config SGI_HAS_HAL2 1265 bool 1266 1267config SGI_HAS_SEEQ 1268 bool 1269 1270config SGI_HAS_WD93 1271 bool 1272 1273config SGI_HAS_ZILOG 1274 bool 1275 1276config SGI_HAS_I8042 1277 bool 1278 1279config DEFAULT_SGI_PARTITION 1280 bool 1281 1282config FW_ARC32 1283 bool 1284 1285config FW_SNIPROM 1286 bool 1287 1288config BOOT_ELF32 1289 bool 1290 1291config MIPS_L1_CACHE_SHIFT_4 1292 bool 1293 1294config MIPS_L1_CACHE_SHIFT_5 1295 bool 1296 1297config MIPS_L1_CACHE_SHIFT_6 1298 bool 1299 1300config MIPS_L1_CACHE_SHIFT_7 1301 bool 1302 1303config MIPS_L1_CACHE_SHIFT 1304 int 1305 default "7" if MIPS_L1_CACHE_SHIFT_7 1306 default "6" if MIPS_L1_CACHE_SHIFT_6 1307 default "5" if MIPS_L1_CACHE_SHIFT_5 1308 default "4" if MIPS_L1_CACHE_SHIFT_4 1309 default "5" 1310 1311config HAVE_STD_PC_SERIAL_PORT 1312 bool 1313 1314config ARC_CONSOLE 1315 bool "ARC console support" 1316 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1317 1318config ARC_MEMORY 1319 bool 1320 depends on MACH_JAZZ || SNI_RM || SGI_IP32 1321 default y 1322 1323config ARC_PROMLIB 1324 bool 1325 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 1326 default y 1327 1328config FW_ARC64 1329 bool 1330 1331config BOOT_ELF64 1332 bool 1333 1334menu "CPU selection" 1335 1336choice 1337 prompt "CPU type" 1338 default CPU_R4X00 1339 1340config CPU_LOONGSON3 1341 bool "Loongson 3 CPU" 1342 depends on SYS_HAS_CPU_LOONGSON3 1343 select CPU_SUPPORTS_64BIT_KERNEL 1344 select CPU_SUPPORTS_HIGHMEM 1345 select CPU_SUPPORTS_HUGEPAGES 1346 select WEAK_ORDERING 1347 select WEAK_REORDERING_BEYOND_LLSC 1348 select MIPS_PGD_C0_CONTEXT 1349 select GPIOLIB 1350 help 1351 The Loongson 3 processor implements the MIPS64R2 instruction 1352 set with many extensions. 1353 1354config LOONGSON3_ENHANCEMENT 1355 bool "New Loongson 3 CPU Enhancements" 1356 default n 1357 select CPU_MIPSR2 1358 select CPU_HAS_PREFETCH 1359 depends on CPU_LOONGSON3 1360 help 1361 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A 1362 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1363 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User 1364 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1365 Fast TLB refill support, etc. 1366 1367 This option enable those enhancements which are not probed at run 1368 time. If you want a generic kernel to run on all Loongson 3 machines, 1369 please say 'N' here. If you want a high-performance kernel to run on 1370 new Loongson 3 machines only, please say 'Y' here. 1371 1372config CPU_LOONGSON2E 1373 bool "Loongson 2E" 1374 depends on SYS_HAS_CPU_LOONGSON2E 1375 select CPU_LOONGSON2 1376 help 1377 The Loongson 2E processor implements the MIPS III instruction set 1378 with many extensions. 1379 1380 It has an internal FPGA northbridge, which is compatible to 1381 bonito64. 1382 1383config CPU_LOONGSON2F 1384 bool "Loongson 2F" 1385 depends on SYS_HAS_CPU_LOONGSON2F 1386 select CPU_LOONGSON2 1387 select GPIOLIB 1388 help 1389 The Loongson 2F processor implements the MIPS III instruction set 1390 with many extensions. 1391 1392 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1393 have a similar programming interface with FPGA northbridge used in 1394 Loongson2E. 1395 1396config CPU_LOONGSON1B 1397 bool "Loongson 1B" 1398 depends on SYS_HAS_CPU_LOONGSON1B 1399 select CPU_LOONGSON1 1400 select LEDS_GPIO_REGISTER 1401 help 1402 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1403 release 2 instruction set. 1404 1405config CPU_LOONGSON1C 1406 bool "Loongson 1C" 1407 depends on SYS_HAS_CPU_LOONGSON1C 1408 select CPU_LOONGSON1 1409 select ARCH_WANT_OPTIONAL_GPIOLIB 1410 select LEDS_GPIO_REGISTER 1411 help 1412 The Loongson 1C is a 32-bit SoC, which implements the MIPS32 1413 release 2 instruction set. 1414 1415config CPU_MIPS32_R1 1416 bool "MIPS32 Release 1" 1417 depends on SYS_HAS_CPU_MIPS32_R1 1418 select CPU_HAS_PREFETCH 1419 select CPU_SUPPORTS_32BIT_KERNEL 1420 select CPU_SUPPORTS_HIGHMEM 1421 help 1422 Choose this option to build a kernel for release 1 or later of the 1423 MIPS32 architecture. Most modern embedded systems with a 32-bit 1424 MIPS processor are based on a MIPS32 processor. If you know the 1425 specific type of processor in your system, choose those that one 1426 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1427 Release 2 of the MIPS32 architecture is available since several 1428 years so chances are you even have a MIPS32 Release 2 processor 1429 in which case you should choose CPU_MIPS32_R2 instead for better 1430 performance. 1431 1432config CPU_MIPS32_R2 1433 bool "MIPS32 Release 2" 1434 depends on SYS_HAS_CPU_MIPS32_R2 1435 select CPU_HAS_PREFETCH 1436 select CPU_SUPPORTS_32BIT_KERNEL 1437 select CPU_SUPPORTS_HIGHMEM 1438 select CPU_SUPPORTS_MSA 1439 select HAVE_KVM 1440 help 1441 Choose this option to build a kernel for release 2 or later of the 1442 MIPS32 architecture. Most modern embedded systems with a 32-bit 1443 MIPS processor are based on a MIPS32 processor. If you know the 1444 specific type of processor in your system, choose those that one 1445 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1446 1447config CPU_MIPS32_R6 1448 bool "MIPS32 Release 6" 1449 depends on SYS_HAS_CPU_MIPS32_R6 1450 select CPU_HAS_PREFETCH 1451 select CPU_SUPPORTS_32BIT_KERNEL 1452 select CPU_SUPPORTS_HIGHMEM 1453 select CPU_SUPPORTS_MSA 1454 select GENERIC_CSUM 1455 select HAVE_KVM 1456 select MIPS_O32_FP64_SUPPORT 1457 help 1458 Choose this option to build a kernel for release 6 or later of the 1459 MIPS32 architecture. New MIPS processors, starting with the Warrior 1460 family, are based on a MIPS32r6 processor. If you own an older 1461 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1462 1463config CPU_MIPS64_R1 1464 bool "MIPS64 Release 1" 1465 depends on SYS_HAS_CPU_MIPS64_R1 1466 select CPU_HAS_PREFETCH 1467 select CPU_SUPPORTS_32BIT_KERNEL 1468 select CPU_SUPPORTS_64BIT_KERNEL 1469 select CPU_SUPPORTS_HIGHMEM 1470 select CPU_SUPPORTS_HUGEPAGES 1471 help 1472 Choose this option to build a kernel for release 1 or later of the 1473 MIPS64 architecture. Many modern embedded systems with a 64-bit 1474 MIPS processor are based on a MIPS64 processor. If you know the 1475 specific type of processor in your system, choose those that one 1476 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1477 Release 2 of the MIPS64 architecture is available since several 1478 years so chances are you even have a MIPS64 Release 2 processor 1479 in which case you should choose CPU_MIPS64_R2 instead for better 1480 performance. 1481 1482config CPU_MIPS64_R2 1483 bool "MIPS64 Release 2" 1484 depends on SYS_HAS_CPU_MIPS64_R2 1485 select CPU_HAS_PREFETCH 1486 select CPU_SUPPORTS_32BIT_KERNEL 1487 select CPU_SUPPORTS_64BIT_KERNEL 1488 select CPU_SUPPORTS_HIGHMEM 1489 select CPU_SUPPORTS_HUGEPAGES 1490 select CPU_SUPPORTS_MSA 1491 select HAVE_KVM 1492 help 1493 Choose this option to build a kernel for release 2 or later of the 1494 MIPS64 architecture. Many modern embedded systems with a 64-bit 1495 MIPS processor are based on a MIPS64 processor. If you know the 1496 specific type of processor in your system, choose those that one 1497 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1498 1499config CPU_MIPS64_R6 1500 bool "MIPS64 Release 6" 1501 depends on SYS_HAS_CPU_MIPS64_R6 1502 select CPU_HAS_PREFETCH 1503 select CPU_SUPPORTS_32BIT_KERNEL 1504 select CPU_SUPPORTS_64BIT_KERNEL 1505 select CPU_SUPPORTS_HIGHMEM 1506 select CPU_SUPPORTS_MSA 1507 select GENERIC_CSUM 1508 select MIPS_O32_FP64_SUPPORT if MIPS32_O32 1509 select HAVE_KVM 1510 help 1511 Choose this option to build a kernel for release 6 or later of the 1512 MIPS64 architecture. New MIPS processors, starting with the Warrior 1513 family, are based on a MIPS64r6 processor. If you own an older 1514 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1515 1516config CPU_R3000 1517 bool "R3000" 1518 depends on SYS_HAS_CPU_R3000 1519 select CPU_HAS_WB 1520 select CPU_SUPPORTS_32BIT_KERNEL 1521 select CPU_SUPPORTS_HIGHMEM 1522 help 1523 Please make sure to pick the right CPU type. Linux/MIPS is not 1524 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1525 *not* work on R4000 machines and vice versa. However, since most 1526 of the supported machines have an R4000 (or similar) CPU, R4x00 1527 might be a safe bet. If the resulting kernel does not work, 1528 try to recompile with R3000. 1529 1530config CPU_TX39XX 1531 bool "R39XX" 1532 depends on SYS_HAS_CPU_TX39XX 1533 select CPU_SUPPORTS_32BIT_KERNEL 1534 1535config CPU_VR41XX 1536 bool "R41xx" 1537 depends on SYS_HAS_CPU_VR41XX 1538 select CPU_SUPPORTS_32BIT_KERNEL 1539 select CPU_SUPPORTS_64BIT_KERNEL 1540 help 1541 The options selects support for the NEC VR4100 series of processors. 1542 Only choose this option if you have one of these processors as a 1543 kernel built with this option will not run on any other type of 1544 processor or vice versa. 1545 1546config CPU_R4300 1547 bool "R4300" 1548 depends on SYS_HAS_CPU_R4300 1549 select CPU_SUPPORTS_32BIT_KERNEL 1550 select CPU_SUPPORTS_64BIT_KERNEL 1551 help 1552 MIPS Technologies R4300-series processors. 1553 1554config CPU_R4X00 1555 bool "R4x00" 1556 depends on SYS_HAS_CPU_R4X00 1557 select CPU_SUPPORTS_32BIT_KERNEL 1558 select CPU_SUPPORTS_64BIT_KERNEL 1559 select CPU_SUPPORTS_HUGEPAGES 1560 help 1561 MIPS Technologies R4000-series processors other than 4300, including 1562 the R4000, R4400, R4600, and 4700. 1563 1564config CPU_TX49XX 1565 bool "R49XX" 1566 depends on SYS_HAS_CPU_TX49XX 1567 select CPU_HAS_PREFETCH 1568 select CPU_SUPPORTS_32BIT_KERNEL 1569 select CPU_SUPPORTS_64BIT_KERNEL 1570 select CPU_SUPPORTS_HUGEPAGES 1571 1572config CPU_R5000 1573 bool "R5000" 1574 depends on SYS_HAS_CPU_R5000 1575 select CPU_SUPPORTS_32BIT_KERNEL 1576 select CPU_SUPPORTS_64BIT_KERNEL 1577 select CPU_SUPPORTS_HUGEPAGES 1578 help 1579 MIPS Technologies R5000-series processors other than the Nevada. 1580 1581config CPU_R5432 1582 bool "R5432" 1583 depends on SYS_HAS_CPU_R5432 1584 select CPU_SUPPORTS_32BIT_KERNEL 1585 select CPU_SUPPORTS_64BIT_KERNEL 1586 select CPU_SUPPORTS_HUGEPAGES 1587 1588config CPU_R5500 1589 bool "R5500" 1590 depends on SYS_HAS_CPU_R5500 1591 select CPU_SUPPORTS_32BIT_KERNEL 1592 select CPU_SUPPORTS_64BIT_KERNEL 1593 select CPU_SUPPORTS_HUGEPAGES 1594 help 1595 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1596 instruction set. 1597 1598config CPU_R6000 1599 bool "R6000" 1600 depends on SYS_HAS_CPU_R6000 1601 select CPU_SUPPORTS_32BIT_KERNEL 1602 help 1603 MIPS Technologies R6000 and R6000A series processors. Note these 1604 processors are extremely rare and the support for them is incomplete. 1605 1606config CPU_NEVADA 1607 bool "RM52xx" 1608 depends on SYS_HAS_CPU_NEVADA 1609 select CPU_SUPPORTS_32BIT_KERNEL 1610 select CPU_SUPPORTS_64BIT_KERNEL 1611 select CPU_SUPPORTS_HUGEPAGES 1612 help 1613 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1614 1615config CPU_R8000 1616 bool "R8000" 1617 depends on SYS_HAS_CPU_R8000 1618 select CPU_HAS_PREFETCH 1619 select CPU_SUPPORTS_64BIT_KERNEL 1620 help 1621 MIPS Technologies R8000 processors. Note these processors are 1622 uncommon and the support for them is incomplete. 1623 1624config CPU_R10000 1625 bool "R10000" 1626 depends on SYS_HAS_CPU_R10000 1627 select CPU_HAS_PREFETCH 1628 select CPU_SUPPORTS_32BIT_KERNEL 1629 select CPU_SUPPORTS_64BIT_KERNEL 1630 select CPU_SUPPORTS_HIGHMEM 1631 select CPU_SUPPORTS_HUGEPAGES 1632 help 1633 MIPS Technologies R10000-series processors. 1634 1635config CPU_RM7000 1636 bool "RM7000" 1637 depends on SYS_HAS_CPU_RM7000 1638 select CPU_HAS_PREFETCH 1639 select CPU_SUPPORTS_32BIT_KERNEL 1640 select CPU_SUPPORTS_64BIT_KERNEL 1641 select CPU_SUPPORTS_HIGHMEM 1642 select CPU_SUPPORTS_HUGEPAGES 1643 1644config CPU_SB1 1645 bool "SB1" 1646 depends on SYS_HAS_CPU_SB1 1647 select CPU_SUPPORTS_32BIT_KERNEL 1648 select CPU_SUPPORTS_64BIT_KERNEL 1649 select CPU_SUPPORTS_HIGHMEM 1650 select CPU_SUPPORTS_HUGEPAGES 1651 select WEAK_ORDERING 1652 1653config CPU_CAVIUM_OCTEON 1654 bool "Cavium Octeon processor" 1655 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1656 select CPU_HAS_PREFETCH 1657 select CPU_SUPPORTS_64BIT_KERNEL 1658 select WEAK_ORDERING 1659 select CPU_SUPPORTS_HIGHMEM 1660 select CPU_SUPPORTS_HUGEPAGES 1661 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1662 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1663 select MIPS_L1_CACHE_SHIFT_7 1664 help 1665 The Cavium Octeon processor is a highly integrated chip containing 1666 many ethernet hardware widgets for networking tasks. The processor 1667 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1668 Full details can be found at http://www.caviumnetworks.com. 1669 1670config CPU_BMIPS 1671 bool "Broadcom BMIPS" 1672 depends on SYS_HAS_CPU_BMIPS 1673 select CPU_MIPS32 1674 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1675 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1676 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1677 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1678 select CPU_SUPPORTS_32BIT_KERNEL 1679 select DMA_NONCOHERENT 1680 select IRQ_MIPS_CPU 1681 select SWAP_IO_SPACE 1682 select WEAK_ORDERING 1683 select CPU_SUPPORTS_HIGHMEM 1684 select CPU_HAS_PREFETCH 1685 help 1686 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1687 1688config CPU_XLR 1689 bool "Netlogic XLR SoC" 1690 depends on SYS_HAS_CPU_XLR 1691 select CPU_SUPPORTS_32BIT_KERNEL 1692 select CPU_SUPPORTS_64BIT_KERNEL 1693 select CPU_SUPPORTS_HIGHMEM 1694 select CPU_SUPPORTS_HUGEPAGES 1695 select WEAK_ORDERING 1696 select WEAK_REORDERING_BEYOND_LLSC 1697 help 1698 Netlogic Microsystems XLR/XLS processors. 1699 1700config CPU_XLP 1701 bool "Netlogic XLP SoC" 1702 depends on SYS_HAS_CPU_XLP 1703 select CPU_SUPPORTS_32BIT_KERNEL 1704 select CPU_SUPPORTS_64BIT_KERNEL 1705 select CPU_SUPPORTS_HIGHMEM 1706 select WEAK_ORDERING 1707 select WEAK_REORDERING_BEYOND_LLSC 1708 select CPU_HAS_PREFETCH 1709 select CPU_MIPSR2 1710 select CPU_SUPPORTS_HUGEPAGES 1711 select MIPS_ASID_BITS_VARIABLE 1712 help 1713 Netlogic Microsystems XLP processors. 1714endchoice 1715 1716config CPU_MIPS32_3_5_FEATURES 1717 bool "MIPS32 Release 3.5 Features" 1718 depends on SYS_HAS_CPU_MIPS32_R3_5 1719 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6 1720 help 1721 Choose this option to build a kernel for release 2 or later of the 1722 MIPS32 architecture including features from the 3.5 release such as 1723 support for Enhanced Virtual Addressing (EVA). 1724 1725config CPU_MIPS32_3_5_EVA 1726 bool "Enhanced Virtual Addressing (EVA)" 1727 depends on CPU_MIPS32_3_5_FEATURES 1728 select EVA 1729 default y 1730 help 1731 Choose this option if you want to enable the Enhanced Virtual 1732 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1733 One of its primary benefits is an increase in the maximum size 1734 of lowmem (up to 3GB). If unsure, say 'N' here. 1735 1736config CPU_MIPS32_R5_FEATURES 1737 bool "MIPS32 Release 5 Features" 1738 depends on SYS_HAS_CPU_MIPS32_R5 1739 depends on CPU_MIPS32_R2 1740 help 1741 Choose this option to build a kernel for release 2 or later of the 1742 MIPS32 architecture including features from release 5 such as 1743 support for Extended Physical Addressing (XPA). 1744 1745config CPU_MIPS32_R5_XPA 1746 bool "Extended Physical Addressing (XPA)" 1747 depends on CPU_MIPS32_R5_FEATURES 1748 depends on !EVA 1749 depends on !PAGE_SIZE_4KB 1750 depends on SYS_SUPPORTS_HIGHMEM 1751 select XPA 1752 select HIGHMEM 1753 select ARCH_PHYS_ADDR_T_64BIT 1754 default n 1755 help 1756 Choose this option if you want to enable the Extended Physical 1757 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1758 benefit is to increase physical addressing equal to or greater 1759 than 40 bits. Note that this has the side effect of turning on 1760 64-bit addressing which in turn makes the PTEs 64-bit in size. 1761 If unsure, say 'N' here. 1762 1763if CPU_LOONGSON2F 1764config CPU_NOP_WORKAROUNDS 1765 bool 1766 1767config CPU_JUMP_WORKAROUNDS 1768 bool 1769 1770config CPU_LOONGSON2F_WORKAROUNDS 1771 bool "Loongson 2F Workarounds" 1772 default y 1773 select CPU_NOP_WORKAROUNDS 1774 select CPU_JUMP_WORKAROUNDS 1775 help 1776 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1777 require workarounds. Without workarounds the system may hang 1778 unexpectedly. For more information please refer to the gas 1779 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1780 1781 Loongson 2F03 and later have fixed these issues and no workarounds 1782 are needed. The workarounds have no significant side effect on them 1783 but may decrease the performance of the system so this option should 1784 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1785 systems. 1786 1787 If unsure, please say Y. 1788endif # CPU_LOONGSON2F 1789 1790config SYS_SUPPORTS_ZBOOT 1791 bool 1792 select HAVE_KERNEL_GZIP 1793 select HAVE_KERNEL_BZIP2 1794 select HAVE_KERNEL_LZ4 1795 select HAVE_KERNEL_LZMA 1796 select HAVE_KERNEL_LZO 1797 select HAVE_KERNEL_XZ 1798 1799config SYS_SUPPORTS_ZBOOT_UART16550 1800 bool 1801 select SYS_SUPPORTS_ZBOOT 1802 1803config SYS_SUPPORTS_ZBOOT_UART_PROM 1804 bool 1805 select SYS_SUPPORTS_ZBOOT 1806 1807config CPU_LOONGSON2 1808 bool 1809 select CPU_SUPPORTS_32BIT_KERNEL 1810 select CPU_SUPPORTS_64BIT_KERNEL 1811 select CPU_SUPPORTS_HIGHMEM 1812 select CPU_SUPPORTS_HUGEPAGES 1813 1814config CPU_LOONGSON1 1815 bool 1816 select CPU_MIPS32 1817 select CPU_MIPSR2 1818 select CPU_HAS_PREFETCH 1819 select CPU_SUPPORTS_32BIT_KERNEL 1820 select CPU_SUPPORTS_HIGHMEM 1821 select CPU_SUPPORTS_CPUFREQ 1822 1823config CPU_BMIPS32_3300 1824 select SMP_UP if SMP 1825 bool 1826 1827config CPU_BMIPS4350 1828 bool 1829 select SYS_SUPPORTS_SMP 1830 select SYS_SUPPORTS_HOTPLUG_CPU 1831 1832config CPU_BMIPS4380 1833 bool 1834 select MIPS_L1_CACHE_SHIFT_6 1835 select SYS_SUPPORTS_SMP 1836 select SYS_SUPPORTS_HOTPLUG_CPU 1837 select CPU_HAS_RIXI 1838 1839config CPU_BMIPS5000 1840 bool 1841 select MIPS_CPU_SCACHE 1842 select MIPS_L1_CACHE_SHIFT_7 1843 select SYS_SUPPORTS_SMP 1844 select SYS_SUPPORTS_HOTPLUG_CPU 1845 select CPU_HAS_RIXI 1846 1847config SYS_HAS_CPU_LOONGSON3 1848 bool 1849 select CPU_SUPPORTS_CPUFREQ 1850 select CPU_HAS_RIXI 1851 1852config SYS_HAS_CPU_LOONGSON2E 1853 bool 1854 1855config SYS_HAS_CPU_LOONGSON2F 1856 bool 1857 select CPU_SUPPORTS_CPUFREQ 1858 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1859 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1860 1861config SYS_HAS_CPU_LOONGSON1B 1862 bool 1863 1864config SYS_HAS_CPU_LOONGSON1C 1865 bool 1866 1867config SYS_HAS_CPU_MIPS32_R1 1868 bool 1869 1870config SYS_HAS_CPU_MIPS32_R2 1871 bool 1872 1873config SYS_HAS_CPU_MIPS32_R3_5 1874 bool 1875 1876config SYS_HAS_CPU_MIPS32_R5 1877 bool 1878 1879config SYS_HAS_CPU_MIPS32_R6 1880 bool 1881 1882config SYS_HAS_CPU_MIPS64_R1 1883 bool 1884 1885config SYS_HAS_CPU_MIPS64_R2 1886 bool 1887 1888config SYS_HAS_CPU_MIPS64_R6 1889 bool 1890 1891config SYS_HAS_CPU_R3000 1892 bool 1893 1894config SYS_HAS_CPU_TX39XX 1895 bool 1896 1897config SYS_HAS_CPU_VR41XX 1898 bool 1899 1900config SYS_HAS_CPU_R4300 1901 bool 1902 1903config SYS_HAS_CPU_R4X00 1904 bool 1905 1906config SYS_HAS_CPU_TX49XX 1907 bool 1908 1909config SYS_HAS_CPU_R5000 1910 bool 1911 1912config SYS_HAS_CPU_R5432 1913 bool 1914 1915config SYS_HAS_CPU_R5500 1916 bool 1917 1918config SYS_HAS_CPU_R6000 1919 bool 1920 1921config SYS_HAS_CPU_NEVADA 1922 bool 1923 1924config SYS_HAS_CPU_R8000 1925 bool 1926 1927config SYS_HAS_CPU_R10000 1928 bool 1929 1930config SYS_HAS_CPU_RM7000 1931 bool 1932 1933config SYS_HAS_CPU_SB1 1934 bool 1935 1936config SYS_HAS_CPU_CAVIUM_OCTEON 1937 bool 1938 1939config SYS_HAS_CPU_BMIPS 1940 bool 1941 1942config SYS_HAS_CPU_BMIPS32_3300 1943 bool 1944 select SYS_HAS_CPU_BMIPS 1945 1946config SYS_HAS_CPU_BMIPS4350 1947 bool 1948 select SYS_HAS_CPU_BMIPS 1949 1950config SYS_HAS_CPU_BMIPS4380 1951 bool 1952 select SYS_HAS_CPU_BMIPS 1953 1954config SYS_HAS_CPU_BMIPS5000 1955 bool 1956 select SYS_HAS_CPU_BMIPS 1957 1958config SYS_HAS_CPU_XLR 1959 bool 1960 1961config SYS_HAS_CPU_XLP 1962 bool 1963 1964config MIPS_MALTA_PM 1965 depends on MIPS_MALTA 1966 depends on PCI 1967 bool 1968 default y 1969 1970# 1971# CPU may reorder R->R, R->W, W->R, W->W 1972# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 1973# 1974config WEAK_ORDERING 1975 bool 1976 1977# 1978# CPU may reorder reads and writes beyond LL/SC 1979# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 1980# 1981config WEAK_REORDERING_BEYOND_LLSC 1982 bool 1983endmenu 1984 1985# 1986# These two indicate any level of the MIPS32 and MIPS64 architecture 1987# 1988config CPU_MIPS32 1989 bool 1990 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6 1991 1992config CPU_MIPS64 1993 bool 1994 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 1995 1996# 1997# These two indicate the revision of the architecture, either Release 1 or Release 2 1998# 1999config CPU_MIPSR1 2000 bool 2001 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 2002 2003config CPU_MIPSR2 2004 bool 2005 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2006 select CPU_HAS_RIXI 2007 select MIPS_SPRAM 2008 2009config CPU_MIPSR6 2010 bool 2011 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2012 select CPU_HAS_RIXI 2013 select HAVE_ARCH_BITREVERSE 2014 select MIPS_ASID_BITS_VARIABLE 2015 select MIPS_SPRAM 2016 2017config EVA 2018 bool 2019 2020config XPA 2021 bool 2022 2023config SYS_SUPPORTS_32BIT_KERNEL 2024 bool 2025config SYS_SUPPORTS_64BIT_KERNEL 2026 bool 2027config CPU_SUPPORTS_32BIT_KERNEL 2028 bool 2029config CPU_SUPPORTS_64BIT_KERNEL 2030 bool 2031config CPU_SUPPORTS_CPUFREQ 2032 bool 2033config CPU_SUPPORTS_ADDRWINCFG 2034 bool 2035config CPU_SUPPORTS_HUGEPAGES 2036 bool 2037config CPU_SUPPORTS_UNCACHED_ACCELERATED 2038 bool 2039config MIPS_PGD_C0_CONTEXT 2040 bool 2041 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP 2042 2043# 2044# Set to y for ptrace access to watch registers. 2045# 2046config HARDWARE_WATCHPOINTS 2047 bool 2048 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2049 2050menu "Kernel type" 2051 2052choice 2053 prompt "Kernel code model" 2054 help 2055 You should only select this option if you have a workload that 2056 actually benefits from 64-bit processing or if your machine has 2057 large memory. You will only be presented a single option in this 2058 menu if your system does not support both 32-bit and 64-bit kernels. 2059 2060config 32BIT 2061 bool "32-bit kernel" 2062 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2063 select TRAD_SIGNALS 2064 help 2065 Select this option if you want to build a 32-bit kernel. 2066 2067config 64BIT 2068 bool "64-bit kernel" 2069 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2070 help 2071 Select this option if you want to build a 64-bit kernel. 2072 2073endchoice 2074 2075config KVM_GUEST 2076 bool "KVM Guest Kernel" 2077 depends on BROKEN_ON_SMP 2078 help 2079 Select this option if building a guest kernel for KVM (Trap & Emulate) 2080 mode. 2081 2082config KVM_GUEST_TIMER_FREQ 2083 int "Count/Compare Timer Frequency (MHz)" 2084 depends on KVM_GUEST 2085 default 100 2086 help 2087 Set this to non-zero if building a guest kernel for KVM to skip RTC 2088 emulation when determining guest CPU Frequency. Instead, the guest's 2089 timer frequency is specified directly. 2090 2091config MIPS_VA_BITS_48 2092 bool "48 bits virtual memory" 2093 depends on 64BIT 2094 help 2095 Support a maximum at least 48 bits of application virtual memory. 2096 Default is 40 bits or less, depending on the CPU. 2097 This option result in a small memory overhead for page tables. 2098 This option is only supported with 16k and 64k page sizes. 2099 If unsure, say N. 2100 2101choice 2102 prompt "Kernel page size" 2103 default PAGE_SIZE_4KB 2104 2105config PAGE_SIZE_4KB 2106 bool "4kB" 2107 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3 2108 depends on !MIPS_VA_BITS_48 2109 help 2110 This option select the standard 4kB Linux page size. On some 2111 R3000-family processors this is the only available page size. Using 2112 4kB page size will minimize memory consumption and is therefore 2113 recommended for low memory systems. 2114 2115config PAGE_SIZE_8KB 2116 bool "8kB" 2117 depends on CPU_R8000 || CPU_CAVIUM_OCTEON 2118 depends on !MIPS_VA_BITS_48 2119 help 2120 Using 8kB page size will result in higher performance kernel at 2121 the price of higher memory consumption. This option is available 2122 only on R8000 and cnMIPS processors. Note that you will need a 2123 suitable Linux distribution to support this. 2124 2125config PAGE_SIZE_16KB 2126 bool "16kB" 2127 depends on !CPU_R3000 && !CPU_TX39XX 2128 help 2129 Using 16kB page size will result in higher performance kernel at 2130 the price of higher memory consumption. This option is available on 2131 all non-R3000 family processors. Note that you will need a suitable 2132 Linux distribution to support this. 2133 2134config PAGE_SIZE_32KB 2135 bool "32kB" 2136 depends on CPU_CAVIUM_OCTEON 2137 depends on !MIPS_VA_BITS_48 2138 help 2139 Using 32kB page size will result in higher performance kernel at 2140 the price of higher memory consumption. This option is available 2141 only on cnMIPS cores. Note that you will need a suitable Linux 2142 distribution to support this. 2143 2144config PAGE_SIZE_64KB 2145 bool "64kB" 2146 depends on !CPU_R3000 && !CPU_TX39XX && !CPU_R6000 2147 help 2148 Using 64kB page size will result in higher performance kernel at 2149 the price of higher memory consumption. This option is available on 2150 all non-R3000 family processor. Not that at the time of this 2151 writing this option is still high experimental. 2152 2153endchoice 2154 2155config FORCE_MAX_ZONEORDER 2156 int "Maximum zone order" 2157 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2158 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2159 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2160 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2161 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2162 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2163 range 11 64 2164 default "11" 2165 help 2166 The kernel memory allocator divides physically contiguous memory 2167 blocks into "zones", where each zone is a power of two number of 2168 pages. This option selects the largest power of two that the kernel 2169 keeps in the memory allocator. If you need to allocate very large 2170 blocks of physically contiguous memory, then you may need to 2171 increase this value. 2172 2173 This config option is actually maximum order plus one. For example, 2174 a value of 11 means that the largest free memory block is 2^10 pages. 2175 2176 The page size is not necessarily 4KB. Keep this in mind 2177 when choosing a value for this option. 2178 2179config BOARD_SCACHE 2180 bool 2181 2182config IP22_CPU_SCACHE 2183 bool 2184 select BOARD_SCACHE 2185 2186# 2187# Support for a MIPS32 / MIPS64 style S-caches 2188# 2189config MIPS_CPU_SCACHE 2190 bool 2191 select BOARD_SCACHE 2192 2193config R5000_CPU_SCACHE 2194 bool 2195 select BOARD_SCACHE 2196 2197config RM7000_CPU_SCACHE 2198 bool 2199 select BOARD_SCACHE 2200 2201config SIBYTE_DMA_PAGEOPS 2202 bool "Use DMA to clear/copy pages" 2203 depends on CPU_SB1 2204 help 2205 Instead of using the CPU to zero and copy pages, use a Data Mover 2206 channel. These DMA channels are otherwise unused by the standard 2207 SiByte Linux port. Seems to give a small performance benefit. 2208 2209config CPU_HAS_PREFETCH 2210 bool 2211 2212config CPU_GENERIC_DUMP_TLB 2213 bool 2214 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX) 2215 2216config CPU_R4K_FPU 2217 bool 2218 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 2219 2220config CPU_R4K_CACHE_TLB 2221 bool 2222 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 2223 2224config MIPS_MT_SMP 2225 bool "MIPS MT SMP support (1 TC on each available VPE)" 2226 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 2227 select CPU_MIPSR2_IRQ_VI 2228 select CPU_MIPSR2_IRQ_EI 2229 select SYNC_R4K 2230 select MIPS_MT 2231 select SMP 2232 select SMP_UP 2233 select SYS_SUPPORTS_SMP 2234 select SYS_SUPPORTS_SCHED_SMT 2235 select MIPS_PERF_SHARED_TC_COUNTERS 2236 help 2237 This is a kernel model which is known as SMVP. This is supported 2238 on cores with the MT ASE and uses the available VPEs to implement 2239 virtual processors which supports SMP. This is equivalent to the 2240 Intel Hyperthreading feature. For further information go to 2241 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2242 2243config MIPS_MT 2244 bool 2245 2246config SCHED_SMT 2247 bool "SMT (multithreading) scheduler support" 2248 depends on SYS_SUPPORTS_SCHED_SMT 2249 default n 2250 help 2251 SMT scheduler support improves the CPU scheduler's decision making 2252 when dealing with MIPS MT enabled cores at a cost of slightly 2253 increased overhead in some places. If unsure say N here. 2254 2255config SYS_SUPPORTS_SCHED_SMT 2256 bool 2257 2258config SYS_SUPPORTS_MULTITHREADING 2259 bool 2260 2261config MIPS_MT_FPAFF 2262 bool "Dynamic FPU affinity for FP-intensive threads" 2263 default y 2264 depends on MIPS_MT_SMP 2265 2266config MIPSR2_TO_R6_EMULATOR 2267 bool "MIPS R2-to-R6 emulator" 2268 depends on CPU_MIPSR6 && !SMP 2269 default y 2270 help 2271 Choose this option if you want to run non-R6 MIPS userland code. 2272 Even if you say 'Y' here, the emulator will still be disabled by 2273 default. You can enable it using the 'mipsr2emu' kernel option. 2274 The only reason this is a build-time option is to save ~14K from the 2275 final kernel image. 2276comment "MIPS R2-to-R6 emulator is only available for UP kernels" 2277 depends on SMP && CPU_MIPSR6 2278 2279config MIPS_VPE_LOADER 2280 bool "VPE loader support." 2281 depends on SYS_SUPPORTS_MULTITHREADING && MODULES 2282 select CPU_MIPSR2_IRQ_VI 2283 select CPU_MIPSR2_IRQ_EI 2284 select MIPS_MT 2285 help 2286 Includes a loader for loading an elf relocatable object 2287 onto another VPE and running it. 2288 2289config MIPS_VPE_LOADER_CMP 2290 bool 2291 default "y" 2292 depends on MIPS_VPE_LOADER && MIPS_CMP 2293 2294config MIPS_VPE_LOADER_MT 2295 bool 2296 default "y" 2297 depends on MIPS_VPE_LOADER && !MIPS_CMP 2298 2299config MIPS_VPE_LOADER_TOM 2300 bool "Load VPE program into memory hidden from linux" 2301 depends on MIPS_VPE_LOADER 2302 default y 2303 help 2304 The loader can use memory that is present but has been hidden from 2305 Linux using the kernel command line option "mem=xxMB". It's up to 2306 you to ensure the amount you put in the option and the space your 2307 program requires is less or equal to the amount physically present. 2308 2309config MIPS_VPE_APSP_API 2310 bool "Enable support for AP/SP API (RTLX)" 2311 depends on MIPS_VPE_LOADER 2312 help 2313 2314config MIPS_VPE_APSP_API_CMP 2315 bool 2316 default "y" 2317 depends on MIPS_VPE_APSP_API && MIPS_CMP 2318 2319config MIPS_VPE_APSP_API_MT 2320 bool 2321 default "y" 2322 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2323 2324config MIPS_CMP 2325 bool "MIPS CMP framework support (DEPRECATED)" 2326 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2327 select SMP 2328 select SYNC_R4K 2329 select SYS_SUPPORTS_SMP 2330 select WEAK_ORDERING 2331 default n 2332 help 2333 Select this if you are using a bootloader which implements the "CMP 2334 framework" protocol (ie. YAMON) and want your kernel to make use of 2335 its ability to start secondary CPUs. 2336 2337 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2338 instead of this. 2339 2340config MIPS_CPS 2341 bool "MIPS Coherent Processing System support" 2342 depends on SYS_SUPPORTS_MIPS_CPS 2343 select MIPS_CM 2344 select MIPS_CPC 2345 select MIPS_CPS_PM if HOTPLUG_CPU 2346 select SMP 2347 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2348 select SYS_SUPPORTS_HOTPLUG_CPU 2349 select SYS_SUPPORTS_SMP 2350 select WEAK_ORDERING 2351 help 2352 Select this if you wish to run an SMP kernel across multiple cores 2353 within a MIPS Coherent Processing System. When this option is 2354 enabled the kernel will probe for other cores and boot them with 2355 no external assistance. It is safe to enable this when hardware 2356 support is unavailable. 2357 2358config MIPS_CPS_PM 2359 depends on MIPS_CPS 2360 select MIPS_CPC 2361 bool 2362 2363config MIPS_CM 2364 bool 2365 2366config MIPS_CPC 2367 bool 2368 2369config SB1_PASS_2_WORKAROUNDS 2370 bool 2371 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2372 default y 2373 2374config SB1_PASS_2_1_WORKAROUNDS 2375 bool 2376 depends on CPU_SB1 && CPU_SB1_PASS_2 2377 default y 2378 2379 2380config ARCH_PHYS_ADDR_T_64BIT 2381 bool 2382 2383choice 2384 prompt "SmartMIPS or microMIPS ASE support" 2385 2386config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2387 bool "None" 2388 help 2389 Select this if you want neither microMIPS nor SmartMIPS support 2390 2391config CPU_HAS_SMARTMIPS 2392 depends on SYS_SUPPORTS_SMARTMIPS 2393 bool "SmartMIPS" 2394 help 2395 SmartMIPS is a extension of the MIPS32 architecture aimed at 2396 increased security at both hardware and software level for 2397 smartcards. Enabling this option will allow proper use of the 2398 SmartMIPS instructions by Linux applications. However a kernel with 2399 this option will not work on a MIPS core without SmartMIPS core. If 2400 you don't know you probably don't have SmartMIPS and should say N 2401 here. 2402 2403config CPU_MICROMIPS 2404 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2405 bool "microMIPS" 2406 help 2407 When this option is enabled the kernel will be built using the 2408 microMIPS ISA 2409 2410endchoice 2411 2412config CPU_HAS_MSA 2413 bool "Support for the MIPS SIMD Architecture" 2414 depends on CPU_SUPPORTS_MSA 2415 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2416 help 2417 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2418 and a set of SIMD instructions to operate on them. When this option 2419 is enabled the kernel will support allocating & switching MSA 2420 vector register contexts. If you know that your kernel will only be 2421 running on CPUs which do not support MSA or that your userland will 2422 not be making use of it then you may wish to say N here to reduce 2423 the size & complexity of your kernel. 2424 2425 If unsure, say Y. 2426 2427config CPU_HAS_WB 2428 bool 2429 2430config XKS01 2431 bool 2432 2433config CPU_HAS_RIXI 2434 bool 2435 2436# 2437# Vectored interrupt mode is an R2 feature 2438# 2439config CPU_MIPSR2_IRQ_VI 2440 bool 2441 2442# 2443# Extended interrupt mode is an R2 feature 2444# 2445config CPU_MIPSR2_IRQ_EI 2446 bool 2447 2448config CPU_HAS_SYNC 2449 bool 2450 depends on !CPU_R3000 2451 default y 2452 2453# 2454# CPU non-features 2455# 2456config CPU_DADDI_WORKAROUNDS 2457 bool 2458 2459config CPU_R4000_WORKAROUNDS 2460 bool 2461 select CPU_R4400_WORKAROUNDS 2462 2463config CPU_R4400_WORKAROUNDS 2464 bool 2465 2466config MIPS_ASID_SHIFT 2467 int 2468 default 6 if CPU_R3000 || CPU_TX39XX 2469 default 4 if CPU_R8000 2470 default 0 2471 2472config MIPS_ASID_BITS 2473 int 2474 default 0 if MIPS_ASID_BITS_VARIABLE 2475 default 6 if CPU_R3000 || CPU_TX39XX 2476 default 8 2477 2478config MIPS_ASID_BITS_VARIABLE 2479 bool 2480 2481# 2482# - Highmem only makes sense for the 32-bit kernel. 2483# - The current highmem code will only work properly on physically indexed 2484# caches such as R3000, SB1, R7000 or those that look like they're virtually 2485# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2486# moment we protect the user and offer the highmem option only on machines 2487# where it's known to be safe. This will not offer highmem on a few systems 2488# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2489# indexed CPUs but we're playing safe. 2490# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2491# know they might have memory configurations that could make use of highmem 2492# support. 2493# 2494config HIGHMEM 2495 bool "High Memory Support" 2496 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2497 2498config CPU_SUPPORTS_HIGHMEM 2499 bool 2500 2501config SYS_SUPPORTS_HIGHMEM 2502 bool 2503 2504config SYS_SUPPORTS_SMARTMIPS 2505 bool 2506 2507config SYS_SUPPORTS_MICROMIPS 2508 bool 2509 2510config SYS_SUPPORTS_MIPS16 2511 bool 2512 help 2513 This option must be set if a kernel might be executed on a MIPS16- 2514 enabled CPU even if MIPS16 is not actually being used. In other 2515 words, it makes the kernel MIPS16-tolerant. 2516 2517config CPU_SUPPORTS_MSA 2518 bool 2519 2520config ARCH_FLATMEM_ENABLE 2521 def_bool y 2522 depends on !NUMA && !CPU_LOONGSON2 2523 2524config ARCH_DISCONTIGMEM_ENABLE 2525 bool 2526 default y if SGI_IP27 2527 help 2528 Say Y to support efficient handling of discontiguous physical memory, 2529 for architectures which are either NUMA (Non-Uniform Memory Access) 2530 or have huge holes in the physical address space for other reasons. 2531 See <file:Documentation/vm/numa> for more. 2532 2533config ARCH_SPARSEMEM_ENABLE 2534 bool 2535 select SPARSEMEM_STATIC 2536 2537config NUMA 2538 bool "NUMA Support" 2539 depends on SYS_SUPPORTS_NUMA 2540 help 2541 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2542 Access). This option improves performance on systems with more 2543 than two nodes; on two node systems it is generally better to 2544 leave it disabled; on single node systems disable this option 2545 disabled. 2546 2547config SYS_SUPPORTS_NUMA 2548 bool 2549 2550config RELOCATABLE 2551 bool "Relocatable kernel" 2552 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6) 2553 help 2554 This builds a kernel image that retains relocation information 2555 so it can be loaded someplace besides the default 1MB. 2556 The relocations make the kernel binary about 15% larger, 2557 but are discarded at runtime 2558 2559config RELOCATION_TABLE_SIZE 2560 hex "Relocation table size" 2561 depends on RELOCATABLE 2562 range 0x0 0x01000000 2563 default "0x00100000" 2564 ---help--- 2565 A table of relocation data will be appended to the kernel binary 2566 and parsed at boot to fix up the relocated kernel. 2567 2568 This option allows the amount of space reserved for the table to be 2569 adjusted, although the default of 1Mb should be ok in most cases. 2570 2571 The build will fail and a valid size suggested if this is too small. 2572 2573 If unsure, leave at the default value. 2574 2575config RANDOMIZE_BASE 2576 bool "Randomize the address of the kernel image" 2577 depends on RELOCATABLE 2578 ---help--- 2579 Randomizes the physical and virtual address at which the 2580 kernel image is loaded, as a security feature that 2581 deters exploit attempts relying on knowledge of the location 2582 of kernel internals. 2583 2584 Entropy is generated using any coprocessor 0 registers available. 2585 2586 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2587 2588 If unsure, say N. 2589 2590config RANDOMIZE_BASE_MAX_OFFSET 2591 hex "Maximum kASLR offset" if EXPERT 2592 depends on RANDOMIZE_BASE 2593 range 0x0 0x40000000 if EVA || 64BIT 2594 range 0x0 0x08000000 2595 default "0x01000000" 2596 ---help--- 2597 When kASLR is active, this provides the maximum offset that will 2598 be applied to the kernel image. It should be set according to the 2599 amount of physical RAM available in the target system minus 2600 PHYSICAL_START and must be a power of 2. 2601 2602 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2603 EVA or 64-bit. The default is 16Mb. 2604 2605config NODES_SHIFT 2606 int 2607 default "6" 2608 depends on NEED_MULTIPLE_NODES 2609 2610config HW_PERF_EVENTS 2611 bool "Enable hardware performance counter support for perf events" 2612 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3) 2613 default y 2614 help 2615 Enable hardware performance counter support for perf events. If 2616 disabled, perf events will use software events only. 2617 2618source "mm/Kconfig" 2619 2620config SMP 2621 bool "Multi-Processing support" 2622 depends on SYS_SUPPORTS_SMP 2623 help 2624 This enables support for systems with more than one CPU. If you have 2625 a system with only one CPU, say N. If you have a system with more 2626 than one CPU, say Y. 2627 2628 If you say N here, the kernel will run on uni- and multiprocessor 2629 machines, but will use only one CPU of a multiprocessor machine. If 2630 you say Y here, the kernel will run on many, but not all, 2631 uniprocessor machines. On a uniprocessor machine, the kernel 2632 will run faster if you say N here. 2633 2634 People using multiprocessor machines who say Y here should also say 2635 Y to "Enhanced Real Time Clock Support", below. 2636 2637 See also the SMP-HOWTO available at 2638 <http://www.tldp.org/docs.html#howto>. 2639 2640 If you don't know what to do here, say N. 2641 2642config HOTPLUG_CPU 2643 bool "Support for hot-pluggable CPUs" 2644 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 2645 help 2646 Say Y here to allow turning CPUs off and on. CPUs can be 2647 controlled through /sys/devices/system/cpu. 2648 (Note: power management support will enable this option 2649 automatically on SMP systems. ) 2650 Say N if you want to disable CPU hotplug. 2651 2652config SMP_UP 2653 bool 2654 2655config SYS_SUPPORTS_MIPS_CMP 2656 bool 2657 2658config SYS_SUPPORTS_MIPS_CPS 2659 bool 2660 2661config SYS_SUPPORTS_SMP 2662 bool 2663 2664config NR_CPUS_DEFAULT_4 2665 bool 2666 2667config NR_CPUS_DEFAULT_8 2668 bool 2669 2670config NR_CPUS_DEFAULT_16 2671 bool 2672 2673config NR_CPUS_DEFAULT_32 2674 bool 2675 2676config NR_CPUS_DEFAULT_64 2677 bool 2678 2679config NR_CPUS 2680 int "Maximum number of CPUs (2-256)" 2681 range 2 256 2682 depends on SMP 2683 default "4" if NR_CPUS_DEFAULT_4 2684 default "8" if NR_CPUS_DEFAULT_8 2685 default "16" if NR_CPUS_DEFAULT_16 2686 default "32" if NR_CPUS_DEFAULT_32 2687 default "64" if NR_CPUS_DEFAULT_64 2688 help 2689 This allows you to specify the maximum number of CPUs which this 2690 kernel will support. The maximum supported value is 32 for 32-bit 2691 kernel and 64 for 64-bit kernels; the minimum value which makes 2692 sense is 1 for Qemu (useful only for kernel debugging purposes) 2693 and 2 for all others. 2694 2695 This is purely to save memory - each supported CPU adds 2696 approximately eight kilobytes to the kernel image. For best 2697 performance should round up your number of processors to the next 2698 power of two. 2699 2700config MIPS_PERF_SHARED_TC_COUNTERS 2701 bool 2702 2703# 2704# Timer Interrupt Frequency Configuration 2705# 2706 2707choice 2708 prompt "Timer frequency" 2709 default HZ_250 2710 help 2711 Allows the configuration of the timer frequency. 2712 2713 config HZ_24 2714 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2715 2716 config HZ_48 2717 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2718 2719 config HZ_100 2720 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2721 2722 config HZ_128 2723 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2724 2725 config HZ_250 2726 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2727 2728 config HZ_256 2729 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2730 2731 config HZ_1000 2732 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2733 2734 config HZ_1024 2735 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2736 2737endchoice 2738 2739config SYS_SUPPORTS_24HZ 2740 bool 2741 2742config SYS_SUPPORTS_48HZ 2743 bool 2744 2745config SYS_SUPPORTS_100HZ 2746 bool 2747 2748config SYS_SUPPORTS_128HZ 2749 bool 2750 2751config SYS_SUPPORTS_250HZ 2752 bool 2753 2754config SYS_SUPPORTS_256HZ 2755 bool 2756 2757config SYS_SUPPORTS_1000HZ 2758 bool 2759 2760config SYS_SUPPORTS_1024HZ 2761 bool 2762 2763config SYS_SUPPORTS_ARBIT_HZ 2764 bool 2765 default y if !SYS_SUPPORTS_24HZ && \ 2766 !SYS_SUPPORTS_48HZ && \ 2767 !SYS_SUPPORTS_100HZ && \ 2768 !SYS_SUPPORTS_128HZ && \ 2769 !SYS_SUPPORTS_250HZ && \ 2770 !SYS_SUPPORTS_256HZ && \ 2771 !SYS_SUPPORTS_1000HZ && \ 2772 !SYS_SUPPORTS_1024HZ 2773 2774config HZ 2775 int 2776 default 24 if HZ_24 2777 default 48 if HZ_48 2778 default 100 if HZ_100 2779 default 128 if HZ_128 2780 default 250 if HZ_250 2781 default 256 if HZ_256 2782 default 1000 if HZ_1000 2783 default 1024 if HZ_1024 2784 2785config SCHED_HRTICK 2786 def_bool HIGH_RES_TIMERS 2787 2788source "kernel/Kconfig.preempt" 2789 2790config KEXEC 2791 bool "Kexec system call" 2792 select KEXEC_CORE 2793 help 2794 kexec is a system call that implements the ability to shutdown your 2795 current kernel, and to start another kernel. It is like a reboot 2796 but it is independent of the system firmware. And like a reboot 2797 you can start any kernel with it, not just Linux. 2798 2799 The name comes from the similarity to the exec system call. 2800 2801 It is an ongoing process to be certain the hardware in a machine 2802 is properly shutdown, so do not be surprised if this code does not 2803 initially work for you. As of this writing the exact hardware 2804 interface is strongly in flux, so no good recommendation can be 2805 made. 2806 2807config CRASH_DUMP 2808 bool "Kernel crash dumps" 2809 help 2810 Generate crash dump after being started by kexec. 2811 This should be normally only set in special crash dump kernels 2812 which are loaded in the main kernel with kexec-tools into 2813 a specially reserved region and then later executed after 2814 a crash by kdump/kexec. The crash dump kernel must be compiled 2815 to a memory address not used by the main kernel or firmware using 2816 PHYSICAL_START. 2817 2818config PHYSICAL_START 2819 hex "Physical address where the kernel is loaded" 2820 default "0xffffffff84000000" if 64BIT 2821 default "0x84000000" if 32BIT 2822 depends on CRASH_DUMP 2823 help 2824 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2825 If you plan to use kernel for capturing the crash dump change 2826 this value to start of the reserved region (the "X" value as 2827 specified in the "crashkernel=YM@XM" command line boot parameter 2828 passed to the panic-ed kernel). 2829 2830config SECCOMP 2831 bool "Enable seccomp to safely compute untrusted bytecode" 2832 depends on PROC_FS 2833 default y 2834 help 2835 This kernel feature is useful for number crunching applications 2836 that may need to compute untrusted bytecode during their 2837 execution. By using pipes or other transports made available to 2838 the process as file descriptors supporting the read/write 2839 syscalls, it's possible to isolate those applications in 2840 their own address space using seccomp. Once seccomp is 2841 enabled via /proc/<pid>/seccomp, it cannot be disabled 2842 and the task is only allowed to execute a few safe syscalls 2843 defined by each seccomp mode. 2844 2845 If unsure, say Y. Only embedded should say N here. 2846 2847config MIPS_O32_FP64_SUPPORT 2848 bool "Support for O32 binaries using 64-bit FP" 2849 depends on 32BIT || MIPS32_O32 2850 help 2851 When this is enabled, the kernel will support use of 64-bit floating 2852 point registers with binaries using the O32 ABI along with the 2853 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 2854 32-bit MIPS systems this support is at the cost of increasing the 2855 size and complexity of the compiled FPU emulator. Thus if you are 2856 running a MIPS32 system and know that none of your userland binaries 2857 will require 64-bit floating point, you may wish to reduce the size 2858 of your kernel & potentially improve FP emulation performance by 2859 saying N here. 2860 2861 Although binutils currently supports use of this flag the details 2862 concerning its effect upon the O32 ABI in userland are still being 2863 worked on. In order to avoid userland becoming dependant upon current 2864 behaviour before the details have been finalised, this option should 2865 be considered experimental and only enabled by those working upon 2866 said details. 2867 2868 If unsure, say N. 2869 2870config USE_OF 2871 bool 2872 select OF 2873 select OF_EARLY_FLATTREE 2874 select IRQ_DOMAIN 2875 2876config BUILTIN_DTB 2877 bool 2878 2879choice 2880 prompt "Kernel appended dtb support" if USE_OF 2881 default MIPS_NO_APPENDED_DTB 2882 2883 config MIPS_NO_APPENDED_DTB 2884 bool "None" 2885 help 2886 Do not enable appended dtb support. 2887 2888 config MIPS_ELF_APPENDED_DTB 2889 bool "vmlinux" 2890 help 2891 With this option, the boot code will look for a device tree binary 2892 DTB) included in the vmlinux ELF section .appended_dtb. By default 2893 it is empty and the DTB can be appended using binutils command 2894 objcopy: 2895 2896 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 2897 2898 This is meant as a backward compatiblity convenience for those 2899 systems with a bootloader that can't be upgraded to accommodate 2900 the documented boot protocol using a device tree. 2901 2902 config MIPS_RAW_APPENDED_DTB 2903 bool "vmlinux.bin or vmlinuz.bin" 2904 help 2905 With this option, the boot code will look for a device tree binary 2906 DTB) appended to raw vmlinux.bin or vmlinuz.bin. 2907 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 2908 2909 This is meant as a backward compatibility convenience for those 2910 systems with a bootloader that can't be upgraded to accommodate 2911 the documented boot protocol using a device tree. 2912 2913 Beware that there is very little in terms of protection against 2914 this option being confused by leftover garbage in memory that might 2915 look like a DTB header after a reboot if no actual DTB is appended 2916 to vmlinux.bin. Do not leave this option active in a production kernel 2917 if you don't intend to always append a DTB. 2918endchoice 2919 2920choice 2921 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 2922 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 2923 !MIPS_MALTA && !MIPS_SEAD3 && \ 2924 !CAVIUM_OCTEON_SOC 2925 default MIPS_CMDLINE_FROM_BOOTLOADER 2926 2927 config MIPS_CMDLINE_FROM_DTB 2928 depends on USE_OF 2929 bool "Dtb kernel arguments if available" 2930 2931 config MIPS_CMDLINE_DTB_EXTEND 2932 depends on USE_OF 2933 bool "Extend dtb kernel arguments with bootloader arguments" 2934 2935 config MIPS_CMDLINE_FROM_BOOTLOADER 2936 bool "Bootloader kernel arguments if available" 2937 2938 config MIPS_CMDLINE_BUILTIN_EXTEND 2939 depends on CMDLINE_BOOL 2940 bool "Extend builtin kernel arguments with bootloader arguments" 2941endchoice 2942 2943endmenu 2944 2945config LOCKDEP_SUPPORT 2946 bool 2947 default y 2948 2949config STACKTRACE_SUPPORT 2950 bool 2951 default y 2952 2953config HAVE_LATENCYTOP_SUPPORT 2954 bool 2955 default y 2956 2957config PGTABLE_LEVELS 2958 int 2959 default 3 if 64BIT && !PAGE_SIZE_64KB 2960 default 2 2961 2962source "init/Kconfig" 2963 2964source "kernel/Kconfig.freezer" 2965 2966menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 2967 2968config HW_HAS_EISA 2969 bool 2970config HW_HAS_PCI 2971 bool 2972 2973config PCI 2974 bool "Support for PCI controller" 2975 depends on HW_HAS_PCI 2976 select PCI_DOMAINS 2977 select NO_GENERIC_PCI_IOPORT_MAP 2978 help 2979 Find out whether you have a PCI motherboard. PCI is the name of a 2980 bus system, i.e. the way the CPU talks to the other stuff inside 2981 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, 2982 say Y, otherwise N. 2983 2984config HT_PCI 2985 bool "Support for HT-linked PCI" 2986 default y 2987 depends on CPU_LOONGSON3 2988 select PCI 2989 select PCI_DOMAINS 2990 help 2991 Loongson family machines use Hyper-Transport bus for inter-core 2992 connection and device connection. The PCI bus is a subordinate 2993 linked at HT. Choose Y for Loongson-3 based machines. 2994 2995config PCI_DOMAINS 2996 bool 2997 2998source "drivers/pci/Kconfig" 2999 3000# 3001# ISA support is now enabled via select. Too many systems still have the one 3002# or other ISA chip on the board that users don't know about so don't expect 3003# users to choose the right thing ... 3004# 3005config ISA 3006 bool 3007 3008config EISA 3009 bool "EISA support" 3010 depends on HW_HAS_EISA 3011 select ISA 3012 select GENERIC_ISA_DMA 3013 ---help--- 3014 The Extended Industry Standard Architecture (EISA) bus was 3015 developed as an open alternative to the IBM MicroChannel bus. 3016 3017 The EISA bus provided some of the features of the IBM MicroChannel 3018 bus while maintaining backward compatibility with cards made for 3019 the older ISA bus. The EISA bus saw limited use between 1988 and 3020 1995 when it was made obsolete by the PCI bus. 3021 3022 Say Y here if you are building a kernel for an EISA-based machine. 3023 3024 Otherwise, say N. 3025 3026source "drivers/eisa/Kconfig" 3027 3028config TC 3029 bool "TURBOchannel support" 3030 depends on MACH_DECSTATION 3031 help 3032 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3033 processors. TURBOchannel programming specifications are available 3034 at: 3035 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3036 and: 3037 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3038 Linux driver support status is documented at: 3039 <http://www.linux-mips.org/wiki/DECstation> 3040 3041config MMU 3042 bool 3043 default y 3044 3045config I8253 3046 bool 3047 select CLKSRC_I8253 3048 select CLKEVT_I8253 3049 select MIPS_EXTERNAL_TIMER 3050 3051config ZONE_DMA 3052 bool 3053 3054config ZONE_DMA32 3055 bool 3056 3057source "drivers/pcmcia/Kconfig" 3058 3059config RAPIDIO 3060 tristate "RapidIO support" 3061 depends on PCI 3062 default n 3063 help 3064 If you say Y here, the kernel will include drivers and 3065 infrastructure code to support RapidIO interconnect devices. 3066 3067source "drivers/rapidio/Kconfig" 3068 3069endmenu 3070 3071menu "Executable file formats" 3072 3073source "fs/Kconfig.binfmt" 3074 3075config TRAD_SIGNALS 3076 bool 3077 3078config MIPS32_COMPAT 3079 bool 3080 3081config COMPAT 3082 bool 3083 3084config SYSVIPC_COMPAT 3085 bool 3086 3087config MIPS32_O32 3088 bool "Kernel support for o32 binaries" 3089 depends on 64BIT 3090 select ARCH_WANT_OLD_COMPAT_IPC 3091 select COMPAT 3092 select MIPS32_COMPAT 3093 select SYSVIPC_COMPAT if SYSVIPC 3094 help 3095 Select this option if you want to run o32 binaries. These are pure 3096 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3097 existing binaries are in this format. 3098 3099 If unsure, say Y. 3100 3101config MIPS32_N32 3102 bool "Kernel support for n32 binaries" 3103 depends on 64BIT 3104 select COMPAT 3105 select MIPS32_COMPAT 3106 select SYSVIPC_COMPAT if SYSVIPC 3107 help 3108 Select this option if you want to run n32 binaries. These are 3109 64-bit binaries using 32-bit quantities for addressing and certain 3110 data that would normally be 64-bit. They are used in special 3111 cases. 3112 3113 If unsure, say N. 3114 3115config BINFMT_ELF32 3116 bool 3117 default y if MIPS32_O32 || MIPS32_N32 3118 select ELFCORE 3119 3120endmenu 3121 3122menu "Power management options" 3123 3124config ARCH_HIBERNATION_POSSIBLE 3125 def_bool y 3126 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3127 3128config ARCH_SUSPEND_POSSIBLE 3129 def_bool y 3130 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3131 3132source "kernel/power/Kconfig" 3133 3134endmenu 3135 3136config MIPS_EXTERNAL_TIMER 3137 bool 3138 3139menu "CPU Power Management" 3140 3141if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3142source "drivers/cpufreq/Kconfig" 3143endif 3144 3145source "drivers/cpuidle/Kconfig" 3146 3147endmenu 3148 3149source "net/Kconfig" 3150 3151source "drivers/Kconfig" 3152 3153source "drivers/firmware/Kconfig" 3154 3155source "fs/Kconfig" 3156 3157source "arch/mips/Kconfig.debug" 3158 3159source "security/Kconfig" 3160 3161source "crypto/Kconfig" 3162 3163source "lib/Kconfig" 3164 3165source "arch/mips/kvm/Kconfig" 3166