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