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