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_MIPS32_R1 1406 bool "MIPS32 Release 1" 1407 depends on SYS_HAS_CPU_MIPS32_R1 1408 select CPU_HAS_PREFETCH 1409 select CPU_SUPPORTS_32BIT_KERNEL 1410 select CPU_SUPPORTS_HIGHMEM 1411 help 1412 Choose this option to build a kernel for release 1 or later of the 1413 MIPS32 architecture. Most modern embedded systems with a 32-bit 1414 MIPS processor are based on a MIPS32 processor. If you know the 1415 specific type of processor in your system, choose those that one 1416 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1417 Release 2 of the MIPS32 architecture is available since several 1418 years so chances are you even have a MIPS32 Release 2 processor 1419 in which case you should choose CPU_MIPS32_R2 instead for better 1420 performance. 1421 1422config CPU_MIPS32_R2 1423 bool "MIPS32 Release 2" 1424 depends on SYS_HAS_CPU_MIPS32_R2 1425 select CPU_HAS_PREFETCH 1426 select CPU_SUPPORTS_32BIT_KERNEL 1427 select CPU_SUPPORTS_HIGHMEM 1428 select CPU_SUPPORTS_MSA 1429 select HAVE_KVM 1430 help 1431 Choose this option to build a kernel for release 2 or later of the 1432 MIPS32 architecture. Most modern embedded systems with a 32-bit 1433 MIPS processor are based on a MIPS32 processor. If you know the 1434 specific type of processor in your system, choose those that one 1435 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1436 1437config CPU_MIPS32_R6 1438 bool "MIPS32 Release 6" 1439 depends on SYS_HAS_CPU_MIPS32_R6 1440 select CPU_HAS_PREFETCH 1441 select CPU_SUPPORTS_32BIT_KERNEL 1442 select CPU_SUPPORTS_HIGHMEM 1443 select CPU_SUPPORTS_MSA 1444 select GENERIC_CSUM 1445 select HAVE_KVM 1446 select MIPS_O32_FP64_SUPPORT 1447 help 1448 Choose this option to build a kernel for release 6 or later of the 1449 MIPS32 architecture. New MIPS processors, starting with the Warrior 1450 family, are based on a MIPS32r6 processor. If you own an older 1451 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1452 1453config CPU_MIPS64_R1 1454 bool "MIPS64 Release 1" 1455 depends on SYS_HAS_CPU_MIPS64_R1 1456 select CPU_HAS_PREFETCH 1457 select CPU_SUPPORTS_32BIT_KERNEL 1458 select CPU_SUPPORTS_64BIT_KERNEL 1459 select CPU_SUPPORTS_HIGHMEM 1460 select CPU_SUPPORTS_HUGEPAGES 1461 help 1462 Choose this option to build a kernel for release 1 or later of the 1463 MIPS64 architecture. Many modern embedded systems with a 64-bit 1464 MIPS processor are based on a MIPS64 processor. If you know the 1465 specific type of processor in your system, choose those that one 1466 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1467 Release 2 of the MIPS64 architecture is available since several 1468 years so chances are you even have a MIPS64 Release 2 processor 1469 in which case you should choose CPU_MIPS64_R2 instead for better 1470 performance. 1471 1472config CPU_MIPS64_R2 1473 bool "MIPS64 Release 2" 1474 depends on SYS_HAS_CPU_MIPS64_R2 1475 select CPU_HAS_PREFETCH 1476 select CPU_SUPPORTS_32BIT_KERNEL 1477 select CPU_SUPPORTS_64BIT_KERNEL 1478 select CPU_SUPPORTS_HIGHMEM 1479 select CPU_SUPPORTS_HUGEPAGES 1480 select CPU_SUPPORTS_MSA 1481 select HAVE_KVM 1482 help 1483 Choose this option to build a kernel for release 2 or later of the 1484 MIPS64 architecture. Many modern embedded systems with a 64-bit 1485 MIPS processor are based on a MIPS64 processor. If you know the 1486 specific type of processor in your system, choose those that one 1487 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1488 1489config CPU_MIPS64_R6 1490 bool "MIPS64 Release 6" 1491 depends on SYS_HAS_CPU_MIPS64_R6 1492 select CPU_HAS_PREFETCH 1493 select CPU_SUPPORTS_32BIT_KERNEL 1494 select CPU_SUPPORTS_64BIT_KERNEL 1495 select CPU_SUPPORTS_HIGHMEM 1496 select CPU_SUPPORTS_MSA 1497 select GENERIC_CSUM 1498 select MIPS_O32_FP64_SUPPORT if MIPS32_O32 1499 select HAVE_KVM 1500 help 1501 Choose this option to build a kernel for release 6 or later of the 1502 MIPS64 architecture. New MIPS processors, starting with the Warrior 1503 family, are based on a MIPS64r6 processor. If you own an older 1504 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1505 1506config CPU_R3000 1507 bool "R3000" 1508 depends on SYS_HAS_CPU_R3000 1509 select CPU_HAS_WB 1510 select CPU_SUPPORTS_32BIT_KERNEL 1511 select CPU_SUPPORTS_HIGHMEM 1512 help 1513 Please make sure to pick the right CPU type. Linux/MIPS is not 1514 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1515 *not* work on R4000 machines and vice versa. However, since most 1516 of the supported machines have an R4000 (or similar) CPU, R4x00 1517 might be a safe bet. If the resulting kernel does not work, 1518 try to recompile with R3000. 1519 1520config CPU_TX39XX 1521 bool "R39XX" 1522 depends on SYS_HAS_CPU_TX39XX 1523 select CPU_SUPPORTS_32BIT_KERNEL 1524 1525config CPU_VR41XX 1526 bool "R41xx" 1527 depends on SYS_HAS_CPU_VR41XX 1528 select CPU_SUPPORTS_32BIT_KERNEL 1529 select CPU_SUPPORTS_64BIT_KERNEL 1530 help 1531 The options selects support for the NEC VR4100 series of processors. 1532 Only choose this option if you have one of these processors as a 1533 kernel built with this option will not run on any other type of 1534 processor or vice versa. 1535 1536config CPU_R4300 1537 bool "R4300" 1538 depends on SYS_HAS_CPU_R4300 1539 select CPU_SUPPORTS_32BIT_KERNEL 1540 select CPU_SUPPORTS_64BIT_KERNEL 1541 help 1542 MIPS Technologies R4300-series processors. 1543 1544config CPU_R4X00 1545 bool "R4x00" 1546 depends on SYS_HAS_CPU_R4X00 1547 select CPU_SUPPORTS_32BIT_KERNEL 1548 select CPU_SUPPORTS_64BIT_KERNEL 1549 select CPU_SUPPORTS_HUGEPAGES 1550 help 1551 MIPS Technologies R4000-series processors other than 4300, including 1552 the R4000, R4400, R4600, and 4700. 1553 1554config CPU_TX49XX 1555 bool "R49XX" 1556 depends on SYS_HAS_CPU_TX49XX 1557 select CPU_HAS_PREFETCH 1558 select CPU_SUPPORTS_32BIT_KERNEL 1559 select CPU_SUPPORTS_64BIT_KERNEL 1560 select CPU_SUPPORTS_HUGEPAGES 1561 1562config CPU_R5000 1563 bool "R5000" 1564 depends on SYS_HAS_CPU_R5000 1565 select CPU_SUPPORTS_32BIT_KERNEL 1566 select CPU_SUPPORTS_64BIT_KERNEL 1567 select CPU_SUPPORTS_HUGEPAGES 1568 help 1569 MIPS Technologies R5000-series processors other than the Nevada. 1570 1571config CPU_R5432 1572 bool "R5432" 1573 depends on SYS_HAS_CPU_R5432 1574 select CPU_SUPPORTS_32BIT_KERNEL 1575 select CPU_SUPPORTS_64BIT_KERNEL 1576 select CPU_SUPPORTS_HUGEPAGES 1577 1578config CPU_R5500 1579 bool "R5500" 1580 depends on SYS_HAS_CPU_R5500 1581 select CPU_SUPPORTS_32BIT_KERNEL 1582 select CPU_SUPPORTS_64BIT_KERNEL 1583 select CPU_SUPPORTS_HUGEPAGES 1584 help 1585 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1586 instruction set. 1587 1588config CPU_R6000 1589 bool "R6000" 1590 depends on SYS_HAS_CPU_R6000 1591 select CPU_SUPPORTS_32BIT_KERNEL 1592 help 1593 MIPS Technologies R6000 and R6000A series processors. Note these 1594 processors are extremely rare and the support for them is incomplete. 1595 1596config CPU_NEVADA 1597 bool "RM52xx" 1598 depends on SYS_HAS_CPU_NEVADA 1599 select CPU_SUPPORTS_32BIT_KERNEL 1600 select CPU_SUPPORTS_64BIT_KERNEL 1601 select CPU_SUPPORTS_HUGEPAGES 1602 help 1603 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1604 1605config CPU_R8000 1606 bool "R8000" 1607 depends on SYS_HAS_CPU_R8000 1608 select CPU_HAS_PREFETCH 1609 select CPU_SUPPORTS_64BIT_KERNEL 1610 help 1611 MIPS Technologies R8000 processors. Note these processors are 1612 uncommon and the support for them is incomplete. 1613 1614config CPU_R10000 1615 bool "R10000" 1616 depends on SYS_HAS_CPU_R10000 1617 select CPU_HAS_PREFETCH 1618 select CPU_SUPPORTS_32BIT_KERNEL 1619 select CPU_SUPPORTS_64BIT_KERNEL 1620 select CPU_SUPPORTS_HIGHMEM 1621 select CPU_SUPPORTS_HUGEPAGES 1622 help 1623 MIPS Technologies R10000-series processors. 1624 1625config CPU_RM7000 1626 bool "RM7000" 1627 depends on SYS_HAS_CPU_RM7000 1628 select CPU_HAS_PREFETCH 1629 select CPU_SUPPORTS_32BIT_KERNEL 1630 select CPU_SUPPORTS_64BIT_KERNEL 1631 select CPU_SUPPORTS_HIGHMEM 1632 select CPU_SUPPORTS_HUGEPAGES 1633 1634config CPU_SB1 1635 bool "SB1" 1636 depends on SYS_HAS_CPU_SB1 1637 select CPU_SUPPORTS_32BIT_KERNEL 1638 select CPU_SUPPORTS_64BIT_KERNEL 1639 select CPU_SUPPORTS_HIGHMEM 1640 select CPU_SUPPORTS_HUGEPAGES 1641 select WEAK_ORDERING 1642 1643config CPU_CAVIUM_OCTEON 1644 bool "Cavium Octeon processor" 1645 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1646 select CPU_HAS_PREFETCH 1647 select CPU_SUPPORTS_64BIT_KERNEL 1648 select WEAK_ORDERING 1649 select CPU_SUPPORTS_HIGHMEM 1650 select CPU_SUPPORTS_HUGEPAGES 1651 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1652 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1653 select MIPS_L1_CACHE_SHIFT_7 1654 help 1655 The Cavium Octeon processor is a highly integrated chip containing 1656 many ethernet hardware widgets for networking tasks. The processor 1657 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1658 Full details can be found at http://www.caviumnetworks.com. 1659 1660config CPU_BMIPS 1661 bool "Broadcom BMIPS" 1662 depends on SYS_HAS_CPU_BMIPS 1663 select CPU_MIPS32 1664 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1665 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1666 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1667 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1668 select CPU_SUPPORTS_32BIT_KERNEL 1669 select DMA_NONCOHERENT 1670 select IRQ_MIPS_CPU 1671 select SWAP_IO_SPACE 1672 select WEAK_ORDERING 1673 select CPU_SUPPORTS_HIGHMEM 1674 select CPU_HAS_PREFETCH 1675 help 1676 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1677 1678config CPU_XLR 1679 bool "Netlogic XLR SoC" 1680 depends on SYS_HAS_CPU_XLR 1681 select CPU_SUPPORTS_32BIT_KERNEL 1682 select CPU_SUPPORTS_64BIT_KERNEL 1683 select CPU_SUPPORTS_HIGHMEM 1684 select CPU_SUPPORTS_HUGEPAGES 1685 select WEAK_ORDERING 1686 select WEAK_REORDERING_BEYOND_LLSC 1687 help 1688 Netlogic Microsystems XLR/XLS processors. 1689 1690config CPU_XLP 1691 bool "Netlogic XLP SoC" 1692 depends on SYS_HAS_CPU_XLP 1693 select CPU_SUPPORTS_32BIT_KERNEL 1694 select CPU_SUPPORTS_64BIT_KERNEL 1695 select CPU_SUPPORTS_HIGHMEM 1696 select WEAK_ORDERING 1697 select WEAK_REORDERING_BEYOND_LLSC 1698 select CPU_HAS_PREFETCH 1699 select CPU_MIPSR2 1700 select CPU_SUPPORTS_HUGEPAGES 1701 select MIPS_ASID_BITS_VARIABLE 1702 help 1703 Netlogic Microsystems XLP processors. 1704endchoice 1705 1706config CPU_MIPS32_3_5_FEATURES 1707 bool "MIPS32 Release 3.5 Features" 1708 depends on SYS_HAS_CPU_MIPS32_R3_5 1709 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6 1710 help 1711 Choose this option to build a kernel for release 2 or later of the 1712 MIPS32 architecture including features from the 3.5 release such as 1713 support for Enhanced Virtual Addressing (EVA). 1714 1715config CPU_MIPS32_3_5_EVA 1716 bool "Enhanced Virtual Addressing (EVA)" 1717 depends on CPU_MIPS32_3_5_FEATURES 1718 select EVA 1719 default y 1720 help 1721 Choose this option if you want to enable the Enhanced Virtual 1722 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1723 One of its primary benefits is an increase in the maximum size 1724 of lowmem (up to 3GB). If unsure, say 'N' here. 1725 1726config CPU_MIPS32_R5_FEATURES 1727 bool "MIPS32 Release 5 Features" 1728 depends on SYS_HAS_CPU_MIPS32_R5 1729 depends on CPU_MIPS32_R2 1730 help 1731 Choose this option to build a kernel for release 2 or later of the 1732 MIPS32 architecture including features from release 5 such as 1733 support for Extended Physical Addressing (XPA). 1734 1735config CPU_MIPS32_R5_XPA 1736 bool "Extended Physical Addressing (XPA)" 1737 depends on CPU_MIPS32_R5_FEATURES 1738 depends on !EVA 1739 depends on !PAGE_SIZE_4KB 1740 depends on SYS_SUPPORTS_HIGHMEM 1741 select XPA 1742 select HIGHMEM 1743 select ARCH_PHYS_ADDR_T_64BIT 1744 default n 1745 help 1746 Choose this option if you want to enable the Extended Physical 1747 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1748 benefit is to increase physical addressing equal to or greater 1749 than 40 bits. Note that this has the side effect of turning on 1750 64-bit addressing which in turn makes the PTEs 64-bit in size. 1751 If unsure, say 'N' here. 1752 1753if CPU_LOONGSON2F 1754config CPU_NOP_WORKAROUNDS 1755 bool 1756 1757config CPU_JUMP_WORKAROUNDS 1758 bool 1759 1760config CPU_LOONGSON2F_WORKAROUNDS 1761 bool "Loongson 2F Workarounds" 1762 default y 1763 select CPU_NOP_WORKAROUNDS 1764 select CPU_JUMP_WORKAROUNDS 1765 help 1766 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1767 require workarounds. Without workarounds the system may hang 1768 unexpectedly. For more information please refer to the gas 1769 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1770 1771 Loongson 2F03 and later have fixed these issues and no workarounds 1772 are needed. The workarounds have no significant side effect on them 1773 but may decrease the performance of the system so this option should 1774 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1775 systems. 1776 1777 If unsure, please say Y. 1778endif # CPU_LOONGSON2F 1779 1780config SYS_SUPPORTS_ZBOOT 1781 bool 1782 select HAVE_KERNEL_GZIP 1783 select HAVE_KERNEL_BZIP2 1784 select HAVE_KERNEL_LZ4 1785 select HAVE_KERNEL_LZMA 1786 select HAVE_KERNEL_LZO 1787 select HAVE_KERNEL_XZ 1788 1789config SYS_SUPPORTS_ZBOOT_UART16550 1790 bool 1791 select SYS_SUPPORTS_ZBOOT 1792 1793config SYS_SUPPORTS_ZBOOT_UART_PROM 1794 bool 1795 select SYS_SUPPORTS_ZBOOT 1796 1797config CPU_LOONGSON2 1798 bool 1799 select CPU_SUPPORTS_32BIT_KERNEL 1800 select CPU_SUPPORTS_64BIT_KERNEL 1801 select CPU_SUPPORTS_HIGHMEM 1802 select CPU_SUPPORTS_HUGEPAGES 1803 1804config CPU_LOONGSON1 1805 bool 1806 select CPU_MIPS32 1807 select CPU_MIPSR2 1808 select CPU_HAS_PREFETCH 1809 select CPU_SUPPORTS_32BIT_KERNEL 1810 select CPU_SUPPORTS_HIGHMEM 1811 select CPU_SUPPORTS_CPUFREQ 1812 1813config CPU_BMIPS32_3300 1814 select SMP_UP if SMP 1815 bool 1816 1817config CPU_BMIPS4350 1818 bool 1819 select SYS_SUPPORTS_SMP 1820 select SYS_SUPPORTS_HOTPLUG_CPU 1821 1822config CPU_BMIPS4380 1823 bool 1824 select MIPS_L1_CACHE_SHIFT_6 1825 select SYS_SUPPORTS_SMP 1826 select SYS_SUPPORTS_HOTPLUG_CPU 1827 select CPU_HAS_RIXI 1828 1829config CPU_BMIPS5000 1830 bool 1831 select MIPS_CPU_SCACHE 1832 select MIPS_L1_CACHE_SHIFT_7 1833 select SYS_SUPPORTS_SMP 1834 select SYS_SUPPORTS_HOTPLUG_CPU 1835 select CPU_HAS_RIXI 1836 1837config SYS_HAS_CPU_LOONGSON3 1838 bool 1839 select CPU_SUPPORTS_CPUFREQ 1840 select CPU_HAS_RIXI 1841 1842config SYS_HAS_CPU_LOONGSON2E 1843 bool 1844 1845config SYS_HAS_CPU_LOONGSON2F 1846 bool 1847 select CPU_SUPPORTS_CPUFREQ 1848 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1849 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1850 1851config SYS_HAS_CPU_LOONGSON1B 1852 bool 1853 1854config SYS_HAS_CPU_MIPS32_R1 1855 bool 1856 1857config SYS_HAS_CPU_MIPS32_R2 1858 bool 1859 1860config SYS_HAS_CPU_MIPS32_R3_5 1861 bool 1862 1863config SYS_HAS_CPU_MIPS32_R5 1864 bool 1865 1866config SYS_HAS_CPU_MIPS32_R6 1867 bool 1868 1869config SYS_HAS_CPU_MIPS64_R1 1870 bool 1871 1872config SYS_HAS_CPU_MIPS64_R2 1873 bool 1874 1875config SYS_HAS_CPU_MIPS64_R6 1876 bool 1877 1878config SYS_HAS_CPU_R3000 1879 bool 1880 1881config SYS_HAS_CPU_TX39XX 1882 bool 1883 1884config SYS_HAS_CPU_VR41XX 1885 bool 1886 1887config SYS_HAS_CPU_R4300 1888 bool 1889 1890config SYS_HAS_CPU_R4X00 1891 bool 1892 1893config SYS_HAS_CPU_TX49XX 1894 bool 1895 1896config SYS_HAS_CPU_R5000 1897 bool 1898 1899config SYS_HAS_CPU_R5432 1900 bool 1901 1902config SYS_HAS_CPU_R5500 1903 bool 1904 1905config SYS_HAS_CPU_R6000 1906 bool 1907 1908config SYS_HAS_CPU_NEVADA 1909 bool 1910 1911config SYS_HAS_CPU_R8000 1912 bool 1913 1914config SYS_HAS_CPU_R10000 1915 bool 1916 1917config SYS_HAS_CPU_RM7000 1918 bool 1919 1920config SYS_HAS_CPU_SB1 1921 bool 1922 1923config SYS_HAS_CPU_CAVIUM_OCTEON 1924 bool 1925 1926config SYS_HAS_CPU_BMIPS 1927 bool 1928 1929config SYS_HAS_CPU_BMIPS32_3300 1930 bool 1931 select SYS_HAS_CPU_BMIPS 1932 1933config SYS_HAS_CPU_BMIPS4350 1934 bool 1935 select SYS_HAS_CPU_BMIPS 1936 1937config SYS_HAS_CPU_BMIPS4380 1938 bool 1939 select SYS_HAS_CPU_BMIPS 1940 1941config SYS_HAS_CPU_BMIPS5000 1942 bool 1943 select SYS_HAS_CPU_BMIPS 1944 1945config SYS_HAS_CPU_XLR 1946 bool 1947 1948config SYS_HAS_CPU_XLP 1949 bool 1950 1951config MIPS_MALTA_PM 1952 depends on MIPS_MALTA 1953 depends on PCI 1954 bool 1955 default y 1956 1957# 1958# CPU may reorder R->R, R->W, W->R, W->W 1959# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 1960# 1961config WEAK_ORDERING 1962 bool 1963 1964# 1965# CPU may reorder reads and writes beyond LL/SC 1966# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 1967# 1968config WEAK_REORDERING_BEYOND_LLSC 1969 bool 1970endmenu 1971 1972# 1973# These two indicate any level of the MIPS32 and MIPS64 architecture 1974# 1975config CPU_MIPS32 1976 bool 1977 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6 1978 1979config CPU_MIPS64 1980 bool 1981 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 1982 1983# 1984# These two indicate the revision of the architecture, either Release 1 or Release 2 1985# 1986config CPU_MIPSR1 1987 bool 1988 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 1989 1990config CPU_MIPSR2 1991 bool 1992 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 1993 select CPU_HAS_RIXI 1994 select MIPS_SPRAM 1995 1996config CPU_MIPSR6 1997 bool 1998 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 1999 select CPU_HAS_RIXI 2000 select HAVE_ARCH_BITREVERSE 2001 select MIPS_ASID_BITS_VARIABLE 2002 select MIPS_SPRAM 2003 2004config EVA 2005 bool 2006 2007config XPA 2008 bool 2009 2010config SYS_SUPPORTS_32BIT_KERNEL 2011 bool 2012config SYS_SUPPORTS_64BIT_KERNEL 2013 bool 2014config CPU_SUPPORTS_32BIT_KERNEL 2015 bool 2016config CPU_SUPPORTS_64BIT_KERNEL 2017 bool 2018config CPU_SUPPORTS_CPUFREQ 2019 bool 2020config CPU_SUPPORTS_ADDRWINCFG 2021 bool 2022config CPU_SUPPORTS_HUGEPAGES 2023 bool 2024config CPU_SUPPORTS_UNCACHED_ACCELERATED 2025 bool 2026config MIPS_PGD_C0_CONTEXT 2027 bool 2028 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP 2029 2030# 2031# Set to y for ptrace access to watch registers. 2032# 2033config HARDWARE_WATCHPOINTS 2034 bool 2035 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2036 2037menu "Kernel type" 2038 2039choice 2040 prompt "Kernel code model" 2041 help 2042 You should only select this option if you have a workload that 2043 actually benefits from 64-bit processing or if your machine has 2044 large memory. You will only be presented a single option in this 2045 menu if your system does not support both 32-bit and 64-bit kernels. 2046 2047config 32BIT 2048 bool "32-bit kernel" 2049 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2050 select TRAD_SIGNALS 2051 help 2052 Select this option if you want to build a 32-bit kernel. 2053 2054config 64BIT 2055 bool "64-bit kernel" 2056 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2057 help 2058 Select this option if you want to build a 64-bit kernel. 2059 2060endchoice 2061 2062config KVM_GUEST 2063 bool "KVM Guest Kernel" 2064 depends on BROKEN_ON_SMP 2065 help 2066 Select this option if building a guest kernel for KVM (Trap & Emulate) 2067 mode. 2068 2069config KVM_GUEST_TIMER_FREQ 2070 int "Count/Compare Timer Frequency (MHz)" 2071 depends on KVM_GUEST 2072 default 100 2073 help 2074 Set this to non-zero if building a guest kernel for KVM to skip RTC 2075 emulation when determining guest CPU Frequency. Instead, the guest's 2076 timer frequency is specified directly. 2077 2078config MIPS_VA_BITS_48 2079 bool "48 bits virtual memory" 2080 depends on 64BIT 2081 help 2082 Support a maximum at least 48 bits of application virtual memory. 2083 Default is 40 bits or less, depending on the CPU. 2084 This option result in a small memory overhead for page tables. 2085 This option is only supported with 16k and 64k page sizes. 2086 If unsure, say N. 2087 2088choice 2089 prompt "Kernel page size" 2090 default PAGE_SIZE_4KB 2091 2092config PAGE_SIZE_4KB 2093 bool "4kB" 2094 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3 2095 depends on !MIPS_VA_BITS_48 2096 help 2097 This option select the standard 4kB Linux page size. On some 2098 R3000-family processors this is the only available page size. Using 2099 4kB page size will minimize memory consumption and is therefore 2100 recommended for low memory systems. 2101 2102config PAGE_SIZE_8KB 2103 bool "8kB" 2104 depends on CPU_R8000 || CPU_CAVIUM_OCTEON 2105 depends on !MIPS_VA_BITS_48 2106 help 2107 Using 8kB page size will result in higher performance kernel at 2108 the price of higher memory consumption. This option is available 2109 only on R8000 and cnMIPS processors. Note that you will need a 2110 suitable Linux distribution to support this. 2111 2112config PAGE_SIZE_16KB 2113 bool "16kB" 2114 depends on !CPU_R3000 && !CPU_TX39XX 2115 help 2116 Using 16kB page size will result in higher performance kernel at 2117 the price of higher memory consumption. This option is available on 2118 all non-R3000 family processors. Note that you will need a suitable 2119 Linux distribution to support this. 2120 2121config PAGE_SIZE_32KB 2122 bool "32kB" 2123 depends on CPU_CAVIUM_OCTEON 2124 depends on !MIPS_VA_BITS_48 2125 help 2126 Using 32kB page size will result in higher performance kernel at 2127 the price of higher memory consumption. This option is available 2128 only on cnMIPS cores. Note that you will need a suitable Linux 2129 distribution to support this. 2130 2131config PAGE_SIZE_64KB 2132 bool "64kB" 2133 depends on !CPU_R3000 && !CPU_TX39XX && !CPU_R6000 2134 help 2135 Using 64kB page size will result in higher performance kernel at 2136 the price of higher memory consumption. This option is available on 2137 all non-R3000 family processor. Not that at the time of this 2138 writing this option is still high experimental. 2139 2140endchoice 2141 2142config FORCE_MAX_ZONEORDER 2143 int "Maximum zone order" 2144 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2145 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2146 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2147 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2148 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2149 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2150 range 11 64 2151 default "11" 2152 help 2153 The kernel memory allocator divides physically contiguous memory 2154 blocks into "zones", where each zone is a power of two number of 2155 pages. This option selects the largest power of two that the kernel 2156 keeps in the memory allocator. If you need to allocate very large 2157 blocks of physically contiguous memory, then you may need to 2158 increase this value. 2159 2160 This config option is actually maximum order plus one. For example, 2161 a value of 11 means that the largest free memory block is 2^10 pages. 2162 2163 The page size is not necessarily 4KB. Keep this in mind 2164 when choosing a value for this option. 2165 2166config BOARD_SCACHE 2167 bool 2168 2169config IP22_CPU_SCACHE 2170 bool 2171 select BOARD_SCACHE 2172 2173# 2174# Support for a MIPS32 / MIPS64 style S-caches 2175# 2176config MIPS_CPU_SCACHE 2177 bool 2178 select BOARD_SCACHE 2179 2180config R5000_CPU_SCACHE 2181 bool 2182 select BOARD_SCACHE 2183 2184config RM7000_CPU_SCACHE 2185 bool 2186 select BOARD_SCACHE 2187 2188config SIBYTE_DMA_PAGEOPS 2189 bool "Use DMA to clear/copy pages" 2190 depends on CPU_SB1 2191 help 2192 Instead of using the CPU to zero and copy pages, use a Data Mover 2193 channel. These DMA channels are otherwise unused by the standard 2194 SiByte Linux port. Seems to give a small performance benefit. 2195 2196config CPU_HAS_PREFETCH 2197 bool 2198 2199config CPU_GENERIC_DUMP_TLB 2200 bool 2201 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX) 2202 2203config CPU_R4K_FPU 2204 bool 2205 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 2206 2207config CPU_R4K_CACHE_TLB 2208 bool 2209 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 2210 2211config MIPS_MT_SMP 2212 bool "MIPS MT SMP support (1 TC on each available VPE)" 2213 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 2214 select CPU_MIPSR2_IRQ_VI 2215 select CPU_MIPSR2_IRQ_EI 2216 select SYNC_R4K 2217 select MIPS_MT 2218 select SMP 2219 select SMP_UP 2220 select SYS_SUPPORTS_SMP 2221 select SYS_SUPPORTS_SCHED_SMT 2222 select MIPS_PERF_SHARED_TC_COUNTERS 2223 help 2224 This is a kernel model which is known as SMVP. This is supported 2225 on cores with the MT ASE and uses the available VPEs to implement 2226 virtual processors which supports SMP. This is equivalent to the 2227 Intel Hyperthreading feature. For further information go to 2228 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2229 2230config MIPS_MT 2231 bool 2232 2233config SCHED_SMT 2234 bool "SMT (multithreading) scheduler support" 2235 depends on SYS_SUPPORTS_SCHED_SMT 2236 default n 2237 help 2238 SMT scheduler support improves the CPU scheduler's decision making 2239 when dealing with MIPS MT enabled cores at a cost of slightly 2240 increased overhead in some places. If unsure say N here. 2241 2242config SYS_SUPPORTS_SCHED_SMT 2243 bool 2244 2245config SYS_SUPPORTS_MULTITHREADING 2246 bool 2247 2248config MIPS_MT_FPAFF 2249 bool "Dynamic FPU affinity for FP-intensive threads" 2250 default y 2251 depends on MIPS_MT_SMP 2252 2253config MIPSR2_TO_R6_EMULATOR 2254 bool "MIPS R2-to-R6 emulator" 2255 depends on CPU_MIPSR6 && !SMP 2256 default y 2257 help 2258 Choose this option if you want to run non-R6 MIPS userland code. 2259 Even if you say 'Y' here, the emulator will still be disabled by 2260 default. You can enable it using the 'mipsr2emu' kernel option. 2261 The only reason this is a build-time option is to save ~14K from the 2262 final kernel image. 2263comment "MIPS R2-to-R6 emulator is only available for UP kernels" 2264 depends on SMP && CPU_MIPSR6 2265 2266config MIPS_VPE_LOADER 2267 bool "VPE loader support." 2268 depends on SYS_SUPPORTS_MULTITHREADING && MODULES 2269 select CPU_MIPSR2_IRQ_VI 2270 select CPU_MIPSR2_IRQ_EI 2271 select MIPS_MT 2272 help 2273 Includes a loader for loading an elf relocatable object 2274 onto another VPE and running it. 2275 2276config MIPS_VPE_LOADER_CMP 2277 bool 2278 default "y" 2279 depends on MIPS_VPE_LOADER && MIPS_CMP 2280 2281config MIPS_VPE_LOADER_MT 2282 bool 2283 default "y" 2284 depends on MIPS_VPE_LOADER && !MIPS_CMP 2285 2286config MIPS_VPE_LOADER_TOM 2287 bool "Load VPE program into memory hidden from linux" 2288 depends on MIPS_VPE_LOADER 2289 default y 2290 help 2291 The loader can use memory that is present but has been hidden from 2292 Linux using the kernel command line option "mem=xxMB". It's up to 2293 you to ensure the amount you put in the option and the space your 2294 program requires is less or equal to the amount physically present. 2295 2296config MIPS_VPE_APSP_API 2297 bool "Enable support for AP/SP API (RTLX)" 2298 depends on MIPS_VPE_LOADER 2299 help 2300 2301config MIPS_VPE_APSP_API_CMP 2302 bool 2303 default "y" 2304 depends on MIPS_VPE_APSP_API && MIPS_CMP 2305 2306config MIPS_VPE_APSP_API_MT 2307 bool 2308 default "y" 2309 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2310 2311config MIPS_CMP 2312 bool "MIPS CMP framework support (DEPRECATED)" 2313 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2314 select SMP 2315 select SYNC_R4K 2316 select SYS_SUPPORTS_SMP 2317 select WEAK_ORDERING 2318 default n 2319 help 2320 Select this if you are using a bootloader which implements the "CMP 2321 framework" protocol (ie. YAMON) and want your kernel to make use of 2322 its ability to start secondary CPUs. 2323 2324 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2325 instead of this. 2326 2327config MIPS_CPS 2328 bool "MIPS Coherent Processing System support" 2329 depends on SYS_SUPPORTS_MIPS_CPS 2330 select MIPS_CM 2331 select MIPS_CPC 2332 select MIPS_CPS_PM if HOTPLUG_CPU 2333 select SMP 2334 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2335 select SYS_SUPPORTS_HOTPLUG_CPU 2336 select SYS_SUPPORTS_SMP 2337 select WEAK_ORDERING 2338 help 2339 Select this if you wish to run an SMP kernel across multiple cores 2340 within a MIPS Coherent Processing System. When this option is 2341 enabled the kernel will probe for other cores and boot them with 2342 no external assistance. It is safe to enable this when hardware 2343 support is unavailable. 2344 2345config MIPS_CPS_PM 2346 depends on MIPS_CPS 2347 select MIPS_CPC 2348 bool 2349 2350config MIPS_CM 2351 bool 2352 2353config MIPS_CPC 2354 bool 2355 2356config SB1_PASS_2_WORKAROUNDS 2357 bool 2358 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2359 default y 2360 2361config SB1_PASS_2_1_WORKAROUNDS 2362 bool 2363 depends on CPU_SB1 && CPU_SB1_PASS_2 2364 default y 2365 2366 2367config ARCH_PHYS_ADDR_T_64BIT 2368 bool 2369 2370choice 2371 prompt "SmartMIPS or microMIPS ASE support" 2372 2373config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2374 bool "None" 2375 help 2376 Select this if you want neither microMIPS nor SmartMIPS support 2377 2378config CPU_HAS_SMARTMIPS 2379 depends on SYS_SUPPORTS_SMARTMIPS 2380 bool "SmartMIPS" 2381 help 2382 SmartMIPS is a extension of the MIPS32 architecture aimed at 2383 increased security at both hardware and software level for 2384 smartcards. Enabling this option will allow proper use of the 2385 SmartMIPS instructions by Linux applications. However a kernel with 2386 this option will not work on a MIPS core without SmartMIPS core. If 2387 you don't know you probably don't have SmartMIPS and should say N 2388 here. 2389 2390config CPU_MICROMIPS 2391 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2392 bool "microMIPS" 2393 help 2394 When this option is enabled the kernel will be built using the 2395 microMIPS ISA 2396 2397endchoice 2398 2399config CPU_HAS_MSA 2400 bool "Support for the MIPS SIMD Architecture" 2401 depends on CPU_SUPPORTS_MSA 2402 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2403 help 2404 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2405 and a set of SIMD instructions to operate on them. When this option 2406 is enabled the kernel will support allocating & switching MSA 2407 vector register contexts. If you know that your kernel will only be 2408 running on CPUs which do not support MSA or that your userland will 2409 not be making use of it then you may wish to say N here to reduce 2410 the size & complexity of your kernel. 2411 2412 If unsure, say Y. 2413 2414config CPU_HAS_WB 2415 bool 2416 2417config XKS01 2418 bool 2419 2420config CPU_HAS_RIXI 2421 bool 2422 2423# 2424# Vectored interrupt mode is an R2 feature 2425# 2426config CPU_MIPSR2_IRQ_VI 2427 bool 2428 2429# 2430# Extended interrupt mode is an R2 feature 2431# 2432config CPU_MIPSR2_IRQ_EI 2433 bool 2434 2435config CPU_HAS_SYNC 2436 bool 2437 depends on !CPU_R3000 2438 default y 2439 2440# 2441# CPU non-features 2442# 2443config CPU_DADDI_WORKAROUNDS 2444 bool 2445 2446config CPU_R4000_WORKAROUNDS 2447 bool 2448 select CPU_R4400_WORKAROUNDS 2449 2450config CPU_R4400_WORKAROUNDS 2451 bool 2452 2453config MIPS_ASID_SHIFT 2454 int 2455 default 6 if CPU_R3000 || CPU_TX39XX 2456 default 4 if CPU_R8000 2457 default 0 2458 2459config MIPS_ASID_BITS 2460 int 2461 default 0 if MIPS_ASID_BITS_VARIABLE 2462 default 6 if CPU_R3000 || CPU_TX39XX 2463 default 8 2464 2465config MIPS_ASID_BITS_VARIABLE 2466 bool 2467 2468# 2469# - Highmem only makes sense for the 32-bit kernel. 2470# - The current highmem code will only work properly on physically indexed 2471# caches such as R3000, SB1, R7000 or those that look like they're virtually 2472# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2473# moment we protect the user and offer the highmem option only on machines 2474# where it's known to be safe. This will not offer highmem on a few systems 2475# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2476# indexed CPUs but we're playing safe. 2477# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2478# know they might have memory configurations that could make use of highmem 2479# support. 2480# 2481config HIGHMEM 2482 bool "High Memory Support" 2483 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2484 2485config CPU_SUPPORTS_HIGHMEM 2486 bool 2487 2488config SYS_SUPPORTS_HIGHMEM 2489 bool 2490 2491config SYS_SUPPORTS_SMARTMIPS 2492 bool 2493 2494config SYS_SUPPORTS_MICROMIPS 2495 bool 2496 2497config SYS_SUPPORTS_MIPS16 2498 bool 2499 help 2500 This option must be set if a kernel might be executed on a MIPS16- 2501 enabled CPU even if MIPS16 is not actually being used. In other 2502 words, it makes the kernel MIPS16-tolerant. 2503 2504config CPU_SUPPORTS_MSA 2505 bool 2506 2507config ARCH_FLATMEM_ENABLE 2508 def_bool y 2509 depends on !NUMA && !CPU_LOONGSON2 2510 2511config ARCH_DISCONTIGMEM_ENABLE 2512 bool 2513 default y if SGI_IP27 2514 help 2515 Say Y to support efficient handling of discontiguous physical memory, 2516 for architectures which are either NUMA (Non-Uniform Memory Access) 2517 or have huge holes in the physical address space for other reasons. 2518 See <file:Documentation/vm/numa> for more. 2519 2520config ARCH_SPARSEMEM_ENABLE 2521 bool 2522 select SPARSEMEM_STATIC 2523 2524config NUMA 2525 bool "NUMA Support" 2526 depends on SYS_SUPPORTS_NUMA 2527 help 2528 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2529 Access). This option improves performance on systems with more 2530 than two nodes; on two node systems it is generally better to 2531 leave it disabled; on single node systems disable this option 2532 disabled. 2533 2534config SYS_SUPPORTS_NUMA 2535 bool 2536 2537config RELOCATABLE 2538 bool "Relocatable kernel" 2539 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6) 2540 help 2541 This builds a kernel image that retains relocation information 2542 so it can be loaded someplace besides the default 1MB. 2543 The relocations make the kernel binary about 15% larger, 2544 but are discarded at runtime 2545 2546config RELOCATION_TABLE_SIZE 2547 hex "Relocation table size" 2548 depends on RELOCATABLE 2549 range 0x0 0x01000000 2550 default "0x00100000" 2551 ---help--- 2552 A table of relocation data will be appended to the kernel binary 2553 and parsed at boot to fix up the relocated kernel. 2554 2555 This option allows the amount of space reserved for the table to be 2556 adjusted, although the default of 1Mb should be ok in most cases. 2557 2558 The build will fail and a valid size suggested if this is too small. 2559 2560 If unsure, leave at the default value. 2561 2562config RANDOMIZE_BASE 2563 bool "Randomize the address of the kernel image" 2564 depends on RELOCATABLE 2565 ---help--- 2566 Randomizes the physical and virtual address at which the 2567 kernel image is loaded, as a security feature that 2568 deters exploit attempts relying on knowledge of the location 2569 of kernel internals. 2570 2571 Entropy is generated using any coprocessor 0 registers available. 2572 2573 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2574 2575 If unsure, say N. 2576 2577config RANDOMIZE_BASE_MAX_OFFSET 2578 hex "Maximum kASLR offset" if EXPERT 2579 depends on RANDOMIZE_BASE 2580 range 0x0 0x40000000 if EVA || 64BIT 2581 range 0x0 0x08000000 2582 default "0x01000000" 2583 ---help--- 2584 When kASLR is active, this provides the maximum offset that will 2585 be applied to the kernel image. It should be set according to the 2586 amount of physical RAM available in the target system minus 2587 PHYSICAL_START and must be a power of 2. 2588 2589 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2590 EVA or 64-bit. The default is 16Mb. 2591 2592config NODES_SHIFT 2593 int 2594 default "6" 2595 depends on NEED_MULTIPLE_NODES 2596 2597config HW_PERF_EVENTS 2598 bool "Enable hardware performance counter support for perf events" 2599 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3) 2600 default y 2601 help 2602 Enable hardware performance counter support for perf events. If 2603 disabled, perf events will use software events only. 2604 2605source "mm/Kconfig" 2606 2607config SMP 2608 bool "Multi-Processing support" 2609 depends on SYS_SUPPORTS_SMP 2610 help 2611 This enables support for systems with more than one CPU. If you have 2612 a system with only one CPU, say N. If you have a system with more 2613 than one CPU, say Y. 2614 2615 If you say N here, the kernel will run on uni- and multiprocessor 2616 machines, but will use only one CPU of a multiprocessor machine. If 2617 you say Y here, the kernel will run on many, but not all, 2618 uniprocessor machines. On a uniprocessor machine, the kernel 2619 will run faster if you say N here. 2620 2621 People using multiprocessor machines who say Y here should also say 2622 Y to "Enhanced Real Time Clock Support", below. 2623 2624 See also the SMP-HOWTO available at 2625 <http://www.tldp.org/docs.html#howto>. 2626 2627 If you don't know what to do here, say N. 2628 2629config HOTPLUG_CPU 2630 bool "Support for hot-pluggable CPUs" 2631 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 2632 help 2633 Say Y here to allow turning CPUs off and on. CPUs can be 2634 controlled through /sys/devices/system/cpu. 2635 (Note: power management support will enable this option 2636 automatically on SMP systems. ) 2637 Say N if you want to disable CPU hotplug. 2638 2639config SMP_UP 2640 bool 2641 2642config SYS_SUPPORTS_MIPS_CMP 2643 bool 2644 2645config SYS_SUPPORTS_MIPS_CPS 2646 bool 2647 2648config SYS_SUPPORTS_SMP 2649 bool 2650 2651config NR_CPUS_DEFAULT_4 2652 bool 2653 2654config NR_CPUS_DEFAULT_8 2655 bool 2656 2657config NR_CPUS_DEFAULT_16 2658 bool 2659 2660config NR_CPUS_DEFAULT_32 2661 bool 2662 2663config NR_CPUS_DEFAULT_64 2664 bool 2665 2666config NR_CPUS 2667 int "Maximum number of CPUs (2-256)" 2668 range 2 256 2669 depends on SMP 2670 default "4" if NR_CPUS_DEFAULT_4 2671 default "8" if NR_CPUS_DEFAULT_8 2672 default "16" if NR_CPUS_DEFAULT_16 2673 default "32" if NR_CPUS_DEFAULT_32 2674 default "64" if NR_CPUS_DEFAULT_64 2675 help 2676 This allows you to specify the maximum number of CPUs which this 2677 kernel will support. The maximum supported value is 32 for 32-bit 2678 kernel and 64 for 64-bit kernels; the minimum value which makes 2679 sense is 1 for Qemu (useful only for kernel debugging purposes) 2680 and 2 for all others. 2681 2682 This is purely to save memory - each supported CPU adds 2683 approximately eight kilobytes to the kernel image. For best 2684 performance should round up your number of processors to the next 2685 power of two. 2686 2687config MIPS_PERF_SHARED_TC_COUNTERS 2688 bool 2689 2690# 2691# Timer Interrupt Frequency Configuration 2692# 2693 2694choice 2695 prompt "Timer frequency" 2696 default HZ_250 2697 help 2698 Allows the configuration of the timer frequency. 2699 2700 config HZ_24 2701 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2702 2703 config HZ_48 2704 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2705 2706 config HZ_100 2707 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2708 2709 config HZ_128 2710 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2711 2712 config HZ_250 2713 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2714 2715 config HZ_256 2716 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2717 2718 config HZ_1000 2719 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2720 2721 config HZ_1024 2722 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2723 2724endchoice 2725 2726config SYS_SUPPORTS_24HZ 2727 bool 2728 2729config SYS_SUPPORTS_48HZ 2730 bool 2731 2732config SYS_SUPPORTS_100HZ 2733 bool 2734 2735config SYS_SUPPORTS_128HZ 2736 bool 2737 2738config SYS_SUPPORTS_250HZ 2739 bool 2740 2741config SYS_SUPPORTS_256HZ 2742 bool 2743 2744config SYS_SUPPORTS_1000HZ 2745 bool 2746 2747config SYS_SUPPORTS_1024HZ 2748 bool 2749 2750config SYS_SUPPORTS_ARBIT_HZ 2751 bool 2752 default y if !SYS_SUPPORTS_24HZ && \ 2753 !SYS_SUPPORTS_48HZ && \ 2754 !SYS_SUPPORTS_100HZ && \ 2755 !SYS_SUPPORTS_128HZ && \ 2756 !SYS_SUPPORTS_250HZ && \ 2757 !SYS_SUPPORTS_256HZ && \ 2758 !SYS_SUPPORTS_1000HZ && \ 2759 !SYS_SUPPORTS_1024HZ 2760 2761config HZ 2762 int 2763 default 24 if HZ_24 2764 default 48 if HZ_48 2765 default 100 if HZ_100 2766 default 128 if HZ_128 2767 default 250 if HZ_250 2768 default 256 if HZ_256 2769 default 1000 if HZ_1000 2770 default 1024 if HZ_1024 2771 2772config SCHED_HRTICK 2773 def_bool HIGH_RES_TIMERS 2774 2775source "kernel/Kconfig.preempt" 2776 2777config KEXEC 2778 bool "Kexec system call" 2779 select KEXEC_CORE 2780 help 2781 kexec is a system call that implements the ability to shutdown your 2782 current kernel, and to start another kernel. It is like a reboot 2783 but it is independent of the system firmware. And like a reboot 2784 you can start any kernel with it, not just Linux. 2785 2786 The name comes from the similarity to the exec system call. 2787 2788 It is an ongoing process to be certain the hardware in a machine 2789 is properly shutdown, so do not be surprised if this code does not 2790 initially work for you. As of this writing the exact hardware 2791 interface is strongly in flux, so no good recommendation can be 2792 made. 2793 2794config CRASH_DUMP 2795 bool "Kernel crash dumps" 2796 help 2797 Generate crash dump after being started by kexec. 2798 This should be normally only set in special crash dump kernels 2799 which are loaded in the main kernel with kexec-tools into 2800 a specially reserved region and then later executed after 2801 a crash by kdump/kexec. The crash dump kernel must be compiled 2802 to a memory address not used by the main kernel or firmware using 2803 PHYSICAL_START. 2804 2805config PHYSICAL_START 2806 hex "Physical address where the kernel is loaded" 2807 default "0xffffffff84000000" if 64BIT 2808 default "0x84000000" if 32BIT 2809 depends on CRASH_DUMP 2810 help 2811 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2812 If you plan to use kernel for capturing the crash dump change 2813 this value to start of the reserved region (the "X" value as 2814 specified in the "crashkernel=YM@XM" command line boot parameter 2815 passed to the panic-ed kernel). 2816 2817config SECCOMP 2818 bool "Enable seccomp to safely compute untrusted bytecode" 2819 depends on PROC_FS 2820 default y 2821 help 2822 This kernel feature is useful for number crunching applications 2823 that may need to compute untrusted bytecode during their 2824 execution. By using pipes or other transports made available to 2825 the process as file descriptors supporting the read/write 2826 syscalls, it's possible to isolate those applications in 2827 their own address space using seccomp. Once seccomp is 2828 enabled via /proc/<pid>/seccomp, it cannot be disabled 2829 and the task is only allowed to execute a few safe syscalls 2830 defined by each seccomp mode. 2831 2832 If unsure, say Y. Only embedded should say N here. 2833 2834config MIPS_O32_FP64_SUPPORT 2835 bool "Support for O32 binaries using 64-bit FP" 2836 depends on 32BIT || MIPS32_O32 2837 help 2838 When this is enabled, the kernel will support use of 64-bit floating 2839 point registers with binaries using the O32 ABI along with the 2840 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 2841 32-bit MIPS systems this support is at the cost of increasing the 2842 size and complexity of the compiled FPU emulator. Thus if you are 2843 running a MIPS32 system and know that none of your userland binaries 2844 will require 64-bit floating point, you may wish to reduce the size 2845 of your kernel & potentially improve FP emulation performance by 2846 saying N here. 2847 2848 Although binutils currently supports use of this flag the details 2849 concerning its effect upon the O32 ABI in userland are still being 2850 worked on. In order to avoid userland becoming dependant upon current 2851 behaviour before the details have been finalised, this option should 2852 be considered experimental and only enabled by those working upon 2853 said details. 2854 2855 If unsure, say N. 2856 2857config USE_OF 2858 bool 2859 select OF 2860 select OF_EARLY_FLATTREE 2861 select IRQ_DOMAIN 2862 2863config BUILTIN_DTB 2864 bool 2865 2866choice 2867 prompt "Kernel appended dtb support" if USE_OF 2868 default MIPS_NO_APPENDED_DTB 2869 2870 config MIPS_NO_APPENDED_DTB 2871 bool "None" 2872 help 2873 Do not enable appended dtb support. 2874 2875 config MIPS_ELF_APPENDED_DTB 2876 bool "vmlinux" 2877 help 2878 With this option, the boot code will look for a device tree binary 2879 DTB) included in the vmlinux ELF section .appended_dtb. By default 2880 it is empty and the DTB can be appended using binutils command 2881 objcopy: 2882 2883 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 2884 2885 This is meant as a backward compatiblity convenience for those 2886 systems with a bootloader that can't be upgraded to accommodate 2887 the documented boot protocol using a device tree. 2888 2889 config MIPS_RAW_APPENDED_DTB 2890 bool "vmlinux.bin or vmlinuz.bin" 2891 help 2892 With this option, the boot code will look for a device tree binary 2893 DTB) appended to raw vmlinux.bin or vmlinuz.bin. 2894 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 2895 2896 This is meant as a backward compatibility convenience for those 2897 systems with a bootloader that can't be upgraded to accommodate 2898 the documented boot protocol using a device tree. 2899 2900 Beware that there is very little in terms of protection against 2901 this option being confused by leftover garbage in memory that might 2902 look like a DTB header after a reboot if no actual DTB is appended 2903 to vmlinux.bin. Do not leave this option active in a production kernel 2904 if you don't intend to always append a DTB. 2905endchoice 2906 2907choice 2908 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 2909 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 2910 !MIPS_MALTA && !MIPS_SEAD3 && \ 2911 !CAVIUM_OCTEON_SOC 2912 default MIPS_CMDLINE_FROM_BOOTLOADER 2913 2914 config MIPS_CMDLINE_FROM_DTB 2915 depends on USE_OF 2916 bool "Dtb kernel arguments if available" 2917 2918 config MIPS_CMDLINE_DTB_EXTEND 2919 depends on USE_OF 2920 bool "Extend dtb kernel arguments with bootloader arguments" 2921 2922 config MIPS_CMDLINE_FROM_BOOTLOADER 2923 bool "Bootloader kernel arguments if available" 2924 2925 config MIPS_CMDLINE_BUILTIN_EXTEND 2926 depends on CMDLINE_BOOL 2927 bool "Extend builtin kernel arguments with bootloader arguments" 2928endchoice 2929 2930endmenu 2931 2932config LOCKDEP_SUPPORT 2933 bool 2934 default y 2935 2936config STACKTRACE_SUPPORT 2937 bool 2938 default y 2939 2940config HAVE_LATENCYTOP_SUPPORT 2941 bool 2942 default y 2943 2944config PGTABLE_LEVELS 2945 int 2946 default 3 if 64BIT && !PAGE_SIZE_64KB 2947 default 2 2948 2949source "init/Kconfig" 2950 2951source "kernel/Kconfig.freezer" 2952 2953menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 2954 2955config HW_HAS_EISA 2956 bool 2957config HW_HAS_PCI 2958 bool 2959 2960config PCI 2961 bool "Support for PCI controller" 2962 depends on HW_HAS_PCI 2963 select PCI_DOMAINS 2964 select NO_GENERIC_PCI_IOPORT_MAP 2965 help 2966 Find out whether you have a PCI motherboard. PCI is the name of a 2967 bus system, i.e. the way the CPU talks to the other stuff inside 2968 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, 2969 say Y, otherwise N. 2970 2971config HT_PCI 2972 bool "Support for HT-linked PCI" 2973 default y 2974 depends on CPU_LOONGSON3 2975 select PCI 2976 select PCI_DOMAINS 2977 help 2978 Loongson family machines use Hyper-Transport bus for inter-core 2979 connection and device connection. The PCI bus is a subordinate 2980 linked at HT. Choose Y for Loongson-3 based machines. 2981 2982config PCI_DOMAINS 2983 bool 2984 2985source "drivers/pci/Kconfig" 2986 2987# 2988# ISA support is now enabled via select. Too many systems still have the one 2989# or other ISA chip on the board that users don't know about so don't expect 2990# users to choose the right thing ... 2991# 2992config ISA 2993 bool 2994 2995config EISA 2996 bool "EISA support" 2997 depends on HW_HAS_EISA 2998 select ISA 2999 select GENERIC_ISA_DMA 3000 ---help--- 3001 The Extended Industry Standard Architecture (EISA) bus was 3002 developed as an open alternative to the IBM MicroChannel bus. 3003 3004 The EISA bus provided some of the features of the IBM MicroChannel 3005 bus while maintaining backward compatibility with cards made for 3006 the older ISA bus. The EISA bus saw limited use between 1988 and 3007 1995 when it was made obsolete by the PCI bus. 3008 3009 Say Y here if you are building a kernel for an EISA-based machine. 3010 3011 Otherwise, say N. 3012 3013source "drivers/eisa/Kconfig" 3014 3015config TC 3016 bool "TURBOchannel support" 3017 depends on MACH_DECSTATION 3018 help 3019 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3020 processors. TURBOchannel programming specifications are available 3021 at: 3022 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3023 and: 3024 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3025 Linux driver support status is documented at: 3026 <http://www.linux-mips.org/wiki/DECstation> 3027 3028config MMU 3029 bool 3030 default y 3031 3032config I8253 3033 bool 3034 select CLKSRC_I8253 3035 select CLKEVT_I8253 3036 select MIPS_EXTERNAL_TIMER 3037 3038config ZONE_DMA 3039 bool 3040 3041config ZONE_DMA32 3042 bool 3043 3044source "drivers/pcmcia/Kconfig" 3045 3046config RAPIDIO 3047 tristate "RapidIO support" 3048 depends on PCI 3049 default n 3050 help 3051 If you say Y here, the kernel will include drivers and 3052 infrastructure code to support RapidIO interconnect devices. 3053 3054source "drivers/rapidio/Kconfig" 3055 3056endmenu 3057 3058menu "Executable file formats" 3059 3060source "fs/Kconfig.binfmt" 3061 3062config TRAD_SIGNALS 3063 bool 3064 3065config MIPS32_COMPAT 3066 bool 3067 3068config COMPAT 3069 bool 3070 3071config SYSVIPC_COMPAT 3072 bool 3073 3074config MIPS32_O32 3075 bool "Kernel support for o32 binaries" 3076 depends on 64BIT 3077 select ARCH_WANT_OLD_COMPAT_IPC 3078 select COMPAT 3079 select MIPS32_COMPAT 3080 select SYSVIPC_COMPAT if SYSVIPC 3081 help 3082 Select this option if you want to run o32 binaries. These are pure 3083 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3084 existing binaries are in this format. 3085 3086 If unsure, say Y. 3087 3088config MIPS32_N32 3089 bool "Kernel support for n32 binaries" 3090 depends on 64BIT 3091 select COMPAT 3092 select MIPS32_COMPAT 3093 select SYSVIPC_COMPAT if SYSVIPC 3094 help 3095 Select this option if you want to run n32 binaries. These are 3096 64-bit binaries using 32-bit quantities for addressing and certain 3097 data that would normally be 64-bit. They are used in special 3098 cases. 3099 3100 If unsure, say N. 3101 3102config BINFMT_ELF32 3103 bool 3104 default y if MIPS32_O32 || MIPS32_N32 3105 select ELFCORE 3106 3107endmenu 3108 3109menu "Power management options" 3110 3111config ARCH_HIBERNATION_POSSIBLE 3112 def_bool y 3113 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3114 3115config ARCH_SUSPEND_POSSIBLE 3116 def_bool y 3117 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3118 3119source "kernel/power/Kconfig" 3120 3121endmenu 3122 3123config MIPS_EXTERNAL_TIMER 3124 bool 3125 3126menu "CPU Power Management" 3127 3128if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3129source "drivers/cpufreq/Kconfig" 3130endif 3131 3132source "drivers/cpuidle/Kconfig" 3133 3134endmenu 3135 3136source "net/Kconfig" 3137 3138source "drivers/Kconfig" 3139 3140source "drivers/firmware/Kconfig" 3141 3142source "fs/Kconfig" 3143 3144source "arch/mips/Kconfig.debug" 3145 3146source "security/Kconfig" 3147 3148source "crypto/Kconfig" 3149 3150source "lib/Kconfig" 3151 3152source "arch/mips/kvm/Kconfig" 3153