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