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 68menu "Machine selection" 69 70choice 71 prompt "System type" 72 default SGI_IP22 73 74config MIPS_ALCHEMY 75 bool "Alchemy processor based machines" 76 select ARCH_PHYS_ADDR_T_64BIT 77 select CEVT_R4K 78 select CSRC_R4K 79 select IRQ_MIPS_CPU 80 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is 81 select SYS_HAS_CPU_MIPS32_R1 82 select SYS_SUPPORTS_32BIT_KERNEL 83 select SYS_SUPPORTS_APM_EMULATION 84 select GPIOLIB 85 select SYS_SUPPORTS_ZBOOT 86 select COMMON_CLK 87 88config AR7 89 bool "Texas Instruments AR7" 90 select BOOT_ELF32 91 select DMA_NONCOHERENT 92 select CEVT_R4K 93 select CSRC_R4K 94 select IRQ_MIPS_CPU 95 select NO_EXCEPT_FILL 96 select SWAP_IO_SPACE 97 select SYS_HAS_CPU_MIPS32_R1 98 select SYS_HAS_EARLY_PRINTK 99 select SYS_SUPPORTS_32BIT_KERNEL 100 select SYS_SUPPORTS_LITTLE_ENDIAN 101 select SYS_SUPPORTS_MIPS16 102 select SYS_SUPPORTS_ZBOOT_UART16550 103 select GPIOLIB 104 select VLYNQ 105 select HAVE_CLK 106 help 107 Support for the Texas Instruments AR7 System-on-a-Chip 108 family: TNETD7100, 7200 and 7300. 109 110config ATH25 111 bool "Atheros AR231x/AR531x SoC support" 112 select CEVT_R4K 113 select CSRC_R4K 114 select DMA_NONCOHERENT 115 select IRQ_MIPS_CPU 116 select IRQ_DOMAIN 117 select SYS_HAS_CPU_MIPS32_R1 118 select SYS_SUPPORTS_BIG_ENDIAN 119 select SYS_SUPPORTS_32BIT_KERNEL 120 select SYS_HAS_EARLY_PRINTK 121 help 122 Support for Atheros AR231x and Atheros AR531x based boards 123 124config ATH79 125 bool "Atheros AR71XX/AR724X/AR913X based boards" 126 select ARCH_HAS_RESET_CONTROLLER 127 select BOOT_RAW 128 select CEVT_R4K 129 select CSRC_R4K 130 select DMA_NONCOHERENT 131 select GPIOLIB 132 select HAVE_CLK 133 select COMMON_CLK 134 select CLKDEV_LOOKUP 135 select IRQ_MIPS_CPU 136 select MIPS_MACHINE 137 select SYS_HAS_CPU_MIPS32_R2 138 select SYS_HAS_EARLY_PRINTK 139 select SYS_SUPPORTS_32BIT_KERNEL 140 select SYS_SUPPORTS_BIG_ENDIAN 141 select SYS_SUPPORTS_MIPS16 142 select SYS_SUPPORTS_ZBOOT_UART_PROM 143 select USE_OF 144 help 145 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 146 147config BMIPS_GENERIC 148 bool "Broadcom Generic BMIPS kernel" 149 select BOOT_RAW 150 select NO_EXCEPT_FILL 151 select USE_OF 152 select CEVT_R4K 153 select CSRC_R4K 154 select SYNC_R4K 155 select COMMON_CLK 156 select BCM6345_L1_IRQ 157 select BCM7038_L1_IRQ 158 select BCM7120_L2_IRQ 159 select BRCMSTB_L2_IRQ 160 select IRQ_MIPS_CPU 161 select DMA_NONCOHERENT 162 select SYS_SUPPORTS_32BIT_KERNEL 163 select SYS_SUPPORTS_LITTLE_ENDIAN 164 select SYS_SUPPORTS_BIG_ENDIAN 165 select SYS_SUPPORTS_HIGHMEM 166 select SYS_HAS_CPU_BMIPS32_3300 167 select SYS_HAS_CPU_BMIPS4350 168 select SYS_HAS_CPU_BMIPS4380 169 select SYS_HAS_CPU_BMIPS5000 170 select SWAP_IO_SPACE 171 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 172 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 173 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 174 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 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 BOOT_RAW 184 select CEVT_R4K 185 select CSRC_R4K 186 select DMA_NONCOHERENT 187 select HW_HAS_PCI 188 select IRQ_MIPS_CPU 189 select SYS_HAS_CPU_MIPS32_R1 190 select NO_EXCEPT_FILL 191 select SYS_SUPPORTS_32BIT_KERNEL 192 select SYS_SUPPORTS_LITTLE_ENDIAN 193 select SYS_SUPPORTS_MIPS16 194 select SYS_HAS_EARLY_PRINTK 195 select USE_GENERIC_EARLY_PRINTK_8250 196 select GPIOLIB 197 select LEDS_GPIO_REGISTER 198 select BCM47XX_NVRAM 199 select BCM47XX_SPROM 200 help 201 Support for BCM47XX based boards 202 203config BCM63XX 204 bool "Broadcom BCM63XX based boards" 205 select BOOT_RAW 206 select CEVT_R4K 207 select CSRC_R4K 208 select SYNC_R4K 209 select DMA_NONCOHERENT 210 select IRQ_MIPS_CPU 211 select SYS_SUPPORTS_32BIT_KERNEL 212 select SYS_SUPPORTS_BIG_ENDIAN 213 select SYS_HAS_EARLY_PRINTK 214 select SWAP_IO_SPACE 215 select GPIOLIB 216 select HAVE_CLK 217 select MIPS_L1_CACHE_SHIFT_4 218 help 219 Support for BCM63XX based boards 220 221config MIPS_COBALT 222 bool "Cobalt Server" 223 select CEVT_R4K 224 select CSRC_R4K 225 select CEVT_GT641XX 226 select DMA_NONCOHERENT 227 select HW_HAS_PCI 228 select I8253 229 select I8259 230 select IRQ_MIPS_CPU 231 select IRQ_GT641XX 232 select PCI_GT64XXX_PCI0 233 select PCI 234 select SYS_HAS_CPU_NEVADA 235 select SYS_HAS_EARLY_PRINTK 236 select SYS_SUPPORTS_32BIT_KERNEL 237 select SYS_SUPPORTS_64BIT_KERNEL 238 select SYS_SUPPORTS_LITTLE_ENDIAN 239 select USE_GENERIC_EARLY_PRINTK_8250 240 241config MACH_DECSTATION 242 bool "DECstations" 243 select BOOT_ELF32 244 select CEVT_DS1287 245 select CEVT_R4K if CPU_R4X00 246 select CSRC_IOASIC 247 select CSRC_R4K if CPU_R4X00 248 select CPU_DADDI_WORKAROUNDS if 64BIT 249 select CPU_R4000_WORKAROUNDS if 64BIT 250 select CPU_R4400_WORKAROUNDS if 64BIT 251 select DMA_NONCOHERENT 252 select NO_IOPORT_MAP 253 select IRQ_MIPS_CPU 254 select SYS_HAS_CPU_R3000 255 select SYS_HAS_CPU_R4X00 256 select SYS_SUPPORTS_32BIT_KERNEL 257 select SYS_SUPPORTS_64BIT_KERNEL 258 select SYS_SUPPORTS_LITTLE_ENDIAN 259 select SYS_SUPPORTS_128HZ 260 select SYS_SUPPORTS_256HZ 261 select SYS_SUPPORTS_1024HZ 262 select MIPS_L1_CACHE_SHIFT_4 263 help 264 This enables support for DEC's MIPS based workstations. For details 265 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 266 DECstation porting pages on <http://decstation.unix-ag.org/>. 267 268 If you have one of the following DECstation Models you definitely 269 want to choose R4xx0 for the CPU Type: 270 271 DECstation 5000/50 272 DECstation 5000/150 273 DECstation 5000/260 274 DECsystem 5900/260 275 276 otherwise choose R3000. 277 278config MACH_JAZZ 279 bool "Jazz family of machines" 280 select FW_ARC 281 select FW_ARC32 282 select ARCH_MAY_HAVE_PC_FDC 283 select CEVT_R4K 284 select CSRC_R4K 285 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 286 select GENERIC_ISA_DMA 287 select HAVE_PCSPKR_PLATFORM 288 select IRQ_MIPS_CPU 289 select I8253 290 select I8259 291 select ISA 292 select SYS_HAS_CPU_R4X00 293 select SYS_SUPPORTS_32BIT_KERNEL 294 select SYS_SUPPORTS_64BIT_KERNEL 295 select SYS_SUPPORTS_100HZ 296 help 297 This a family of machines based on the MIPS R4030 chipset which was 298 used by several vendors to build RISC/os and Windows NT workstations. 299 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 300 Olivetti M700-10 workstations. 301 302config MACH_INGENIC 303 bool "Ingenic SoC based machines" 304 select SYS_SUPPORTS_32BIT_KERNEL 305 select SYS_SUPPORTS_LITTLE_ENDIAN 306 select SYS_SUPPORTS_ZBOOT_UART16550 307 select DMA_NONCOHERENT 308 select IRQ_MIPS_CPU 309 select GPIOLIB 310 select COMMON_CLK 311 select GENERIC_IRQ_CHIP 312 select BUILTIN_DTB 313 select USE_OF 314 select LIBFDT 315 316config LANTIQ 317 bool "Lantiq based platforms" 318 select DMA_NONCOHERENT 319 select IRQ_MIPS_CPU 320 select CEVT_R4K 321 select CSRC_R4K 322 select SYS_HAS_CPU_MIPS32_R1 323 select SYS_HAS_CPU_MIPS32_R2 324 select SYS_SUPPORTS_BIG_ENDIAN 325 select SYS_SUPPORTS_32BIT_KERNEL 326 select SYS_SUPPORTS_MIPS16 327 select SYS_SUPPORTS_MULTITHREADING 328 select SYS_HAS_EARLY_PRINTK 329 select GPIOLIB 330 select SWAP_IO_SPACE 331 select BOOT_RAW 332 select CLKDEV_LOOKUP 333 select USE_OF 334 select PINCTRL 335 select PINCTRL_LANTIQ 336 select ARCH_HAS_RESET_CONTROLLER 337 select RESET_CONTROLLER 338 339config LASAT 340 bool "LASAT Networks platforms" 341 select CEVT_R4K 342 select CRC32 343 select CSRC_R4K 344 select DMA_NONCOHERENT 345 select SYS_HAS_EARLY_PRINTK 346 select HW_HAS_PCI 347 select IRQ_MIPS_CPU 348 select PCI_GT64XXX_PCI0 349 select MIPS_NILE4 350 select R5000_CPU_SCACHE 351 select SYS_HAS_CPU_R5000 352 select SYS_SUPPORTS_32BIT_KERNEL 353 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 354 select SYS_SUPPORTS_LITTLE_ENDIAN 355 356config MACH_LOONGSON32 357 bool "Loongson-1 family of machines" 358 select SYS_SUPPORTS_ZBOOT 359 help 360 This enables support for the Loongson-1 family of machines. 361 362 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by 363 the Institute of Computing Technology (ICT), Chinese Academy of 364 Sciences (CAS). 365 366config MACH_LOONGSON64 367 bool "Loongson-2/3 family of machines" 368 select SYS_SUPPORTS_ZBOOT 369 help 370 This enables the support of Loongson-2/3 family of machines. 371 372 Loongson-2 is a family of single-core CPUs and Loongson-3 is a 373 family of multi-core CPUs. They are both 64-bit general-purpose 374 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute 375 of Computing Technology (ICT), Chinese Academy of Sciences (CAS) 376 in the People's Republic of China. The chief architect is Professor 377 Weiwu Hu. 378 379config MACH_PISTACHIO 380 bool "IMG Pistachio SoC based boards" 381 select BOOT_ELF32 382 select BOOT_RAW 383 select CEVT_R4K 384 select CLKSRC_MIPS_GIC 385 select COMMON_CLK 386 select CSRC_R4K 387 select DMA_MAYBE_COHERENT 388 select GPIOLIB 389 select IRQ_MIPS_CPU 390 select LIBFDT 391 select MFD_SYSCON 392 select MIPS_CPU_SCACHE 393 select MIPS_GIC 394 select PINCTRL 395 select REGULATOR 396 select SYS_HAS_CPU_MIPS32_R2 397 select SYS_SUPPORTS_32BIT_KERNEL 398 select SYS_SUPPORTS_LITTLE_ENDIAN 399 select SYS_SUPPORTS_MIPS_CPS 400 select SYS_SUPPORTS_MULTITHREADING 401 select SYS_SUPPORTS_RELOCATABLE 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 BOOT_ELF32 412 select BOOT_RAW 413 select BUILTIN_DTB 414 select CEVT_R4K 415 select COMMON_CLK 416 select CSRC_R4K 417 select GPIOLIB 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 SYS_SUPPORTS_RELOCATABLE 479 select USE_OF 480 select ZONE_DMA32 if 64BIT 481 select BUILTIN_DTB 482 select LIBFDT 483 help 484 This enables support for the MIPS Technologies Malta evaluation 485 board. 486 487config MACH_PIC32 488 bool "Microchip PIC32 Family" 489 help 490 This enables support for the Microchip PIC32 family of platforms. 491 492 Microchip PIC32 is a family of general-purpose 32 bit MIPS core 493 microcontrollers. 494 495config MIPS_SEAD3 496 bool "MIPS SEAD3 board" 497 select BOOT_ELF32 498 select BOOT_RAW 499 select BUILTIN_DTB 500 select CEVT_R4K 501 select CSRC_R4K 502 select CLKSRC_MIPS_GIC 503 select COMMON_CLK 504 select CPU_MIPSR2_IRQ_VI 505 select CPU_MIPSR2_IRQ_EI 506 select DMA_NONCOHERENT 507 select IRQ_MIPS_CPU 508 select MIPS_GIC 509 select LIBFDT 510 select MIPS_MSC 511 select SYS_HAS_CPU_MIPS32_R1 512 select SYS_HAS_CPU_MIPS32_R2 513 select SYS_HAS_CPU_MIPS32_R6 514 select SYS_HAS_CPU_MIPS64_R1 515 select SYS_HAS_EARLY_PRINTK 516 select SYS_SUPPORTS_32BIT_KERNEL 517 select SYS_SUPPORTS_64BIT_KERNEL 518 select SYS_SUPPORTS_BIG_ENDIAN 519 select SYS_SUPPORTS_LITTLE_ENDIAN 520 select SYS_SUPPORTS_SMARTMIPS 521 select SYS_SUPPORTS_MICROMIPS 522 select SYS_SUPPORTS_MIPS16 523 select SYS_SUPPORTS_RELOCATABLE 524 select USB_EHCI_BIG_ENDIAN_DESC 525 select USB_EHCI_BIG_ENDIAN_MMIO 526 select USE_OF 527 help 528 This enables support for the MIPS Technologies SEAD3 evaluation 529 board. 530 531config NEC_MARKEINS 532 bool "NEC EMMA2RH Mark-eins board" 533 select SOC_EMMA2RH 534 select HW_HAS_PCI 535 help 536 This enables support for the NEC Electronics Mark-eins boards. 537 538config MACH_VR41XX 539 bool "NEC VR4100 series based machines" 540 select CEVT_R4K 541 select CSRC_R4K 542 select SYS_HAS_CPU_VR41XX 543 select SYS_SUPPORTS_MIPS16 544 select GPIOLIB 545 546config NXP_STB220 547 bool "NXP STB220 board" 548 select SOC_PNX833X 549 help 550 Support for NXP Semiconductors STB220 Development Board. 551 552config NXP_STB225 553 bool "NXP 225 board" 554 select SOC_PNX833X 555 select SOC_PNX8335 556 help 557 Support for NXP Semiconductors STB225 Development Board. 558 559config PMC_MSP 560 bool "PMC-Sierra MSP chipsets" 561 select CEVT_R4K 562 select CSRC_R4K 563 select DMA_NONCOHERENT 564 select SWAP_IO_SPACE 565 select NO_EXCEPT_FILL 566 select BOOT_RAW 567 select SYS_HAS_CPU_MIPS32_R1 568 select SYS_HAS_CPU_MIPS32_R2 569 select SYS_SUPPORTS_32BIT_KERNEL 570 select SYS_SUPPORTS_BIG_ENDIAN 571 select SYS_SUPPORTS_MIPS16 572 select IRQ_MIPS_CPU 573 select SERIAL_8250 574 select SERIAL_8250_CONSOLE 575 select USB_EHCI_BIG_ENDIAN_MMIO 576 select USB_EHCI_BIG_ENDIAN_DESC 577 help 578 This adds support for the PMC-Sierra family of Multi-Service 579 Processor System-On-A-Chips. These parts include a number 580 of integrated peripherals, interfaces and DSPs in addition to 581 a variety of MIPS cores. 582 583config RALINK 584 bool "Ralink based machines" 585 select CEVT_R4K 586 select CSRC_R4K 587 select BOOT_RAW 588 select DMA_NONCOHERENT 589 select IRQ_MIPS_CPU 590 select USE_OF 591 select SYS_HAS_CPU_MIPS32_R1 592 select SYS_HAS_CPU_MIPS32_R2 593 select SYS_SUPPORTS_32BIT_KERNEL 594 select SYS_SUPPORTS_LITTLE_ENDIAN 595 select SYS_SUPPORTS_MIPS16 596 select SYS_HAS_EARLY_PRINTK 597 select CLKDEV_LOOKUP 598 select ARCH_HAS_RESET_CONTROLLER 599 select RESET_CONTROLLER 600 601config SGI_IP22 602 bool "SGI IP22 (Indy/Indigo2)" 603 select FW_ARC 604 select FW_ARC32 605 select BOOT_ELF32 606 select CEVT_R4K 607 select CSRC_R4K 608 select DEFAULT_SGI_PARTITION 609 select DMA_NONCOHERENT 610 select HW_HAS_EISA 611 select I8253 612 select I8259 613 select IP22_CPU_SCACHE 614 select IRQ_MIPS_CPU 615 select GENERIC_ISA_DMA_SUPPORT_BROKEN 616 select SGI_HAS_I8042 617 select SGI_HAS_INDYDOG 618 select SGI_HAS_HAL2 619 select SGI_HAS_SEEQ 620 select SGI_HAS_WD93 621 select SGI_HAS_ZILOG 622 select SWAP_IO_SPACE 623 select SYS_HAS_CPU_R4X00 624 select SYS_HAS_CPU_R5000 625 # 626 # Disable EARLY_PRINTK for now since it leads to overwritten prom 627 # memory during early boot on some machines. 628 # 629 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 630 # for a more details discussion 631 # 632 # select SYS_HAS_EARLY_PRINTK 633 select SYS_SUPPORTS_32BIT_KERNEL 634 select SYS_SUPPORTS_64BIT_KERNEL 635 select SYS_SUPPORTS_BIG_ENDIAN 636 select MIPS_L1_CACHE_SHIFT_7 637 help 638 This are the SGI Indy, Challenge S and Indigo2, as well as certain 639 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 640 that runs on these, say Y here. 641 642config SGI_IP27 643 bool "SGI IP27 (Origin200/2000)" 644 select FW_ARC 645 select FW_ARC64 646 select BOOT_ELF64 647 select DEFAULT_SGI_PARTITION 648 select DMA_COHERENT 649 select SYS_HAS_EARLY_PRINTK 650 select HW_HAS_PCI 651 select NR_CPUS_DEFAULT_64 652 select SYS_HAS_CPU_R10000 653 select SYS_SUPPORTS_64BIT_KERNEL 654 select SYS_SUPPORTS_BIG_ENDIAN 655 select SYS_SUPPORTS_NUMA 656 select SYS_SUPPORTS_SMP 657 select MIPS_L1_CACHE_SHIFT_7 658 help 659 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 660 workstations. To compile a Linux kernel that runs on these, say Y 661 here. 662 663config SGI_IP28 664 bool "SGI IP28 (Indigo2 R10k)" 665 select FW_ARC 666 select FW_ARC64 667 select BOOT_ELF64 668 select CEVT_R4K 669 select CSRC_R4K 670 select DEFAULT_SGI_PARTITION 671 select DMA_NONCOHERENT 672 select GENERIC_ISA_DMA_SUPPORT_BROKEN 673 select IRQ_MIPS_CPU 674 select HW_HAS_EISA 675 select I8253 676 select I8259 677 select SGI_HAS_I8042 678 select SGI_HAS_INDYDOG 679 select SGI_HAS_HAL2 680 select SGI_HAS_SEEQ 681 select SGI_HAS_WD93 682 select SGI_HAS_ZILOG 683 select SWAP_IO_SPACE 684 select SYS_HAS_CPU_R10000 685 # 686 # Disable EARLY_PRINTK for now since it leads to overwritten prom 687 # memory during early boot on some machines. 688 # 689 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 690 # for a more details discussion 691 # 692 # select SYS_HAS_EARLY_PRINTK 693 select SYS_SUPPORTS_64BIT_KERNEL 694 select SYS_SUPPORTS_BIG_ENDIAN 695 select MIPS_L1_CACHE_SHIFT_7 696 help 697 This is the SGI Indigo2 with R10000 processor. To compile a Linux 698 kernel that runs on these, say Y here. 699 700config SGI_IP32 701 bool "SGI IP32 (O2)" 702 select FW_ARC 703 select FW_ARC32 704 select BOOT_ELF32 705 select CEVT_R4K 706 select CSRC_R4K 707 select DMA_NONCOHERENT 708 select HW_HAS_PCI 709 select IRQ_MIPS_CPU 710 select R5000_CPU_SCACHE 711 select RM7000_CPU_SCACHE 712 select SYS_HAS_CPU_R5000 713 select SYS_HAS_CPU_R10000 if BROKEN 714 select SYS_HAS_CPU_RM7000 715 select SYS_HAS_CPU_NEVADA 716 select SYS_SUPPORTS_64BIT_KERNEL 717 select SYS_SUPPORTS_BIG_ENDIAN 718 help 719 If you want this kernel to run on SGI O2 workstation, say Y here. 720 721config SIBYTE_CRHINE 722 bool "Sibyte BCM91120C-CRhine" 723 select BOOT_ELF32 724 select DMA_COHERENT 725 select SIBYTE_BCM1120 726 select SWAP_IO_SPACE 727 select SYS_HAS_CPU_SB1 728 select SYS_SUPPORTS_BIG_ENDIAN 729 select SYS_SUPPORTS_LITTLE_ENDIAN 730 731config SIBYTE_CARMEL 732 bool "Sibyte BCM91120x-Carmel" 733 select BOOT_ELF32 734 select DMA_COHERENT 735 select SIBYTE_BCM1120 736 select SWAP_IO_SPACE 737 select SYS_HAS_CPU_SB1 738 select SYS_SUPPORTS_BIG_ENDIAN 739 select SYS_SUPPORTS_LITTLE_ENDIAN 740 741config SIBYTE_CRHONE 742 bool "Sibyte BCM91125C-CRhone" 743 select BOOT_ELF32 744 select DMA_COHERENT 745 select SIBYTE_BCM1125 746 select SWAP_IO_SPACE 747 select SYS_HAS_CPU_SB1 748 select SYS_SUPPORTS_BIG_ENDIAN 749 select SYS_SUPPORTS_HIGHMEM 750 select SYS_SUPPORTS_LITTLE_ENDIAN 751 752config SIBYTE_RHONE 753 bool "Sibyte BCM91125E-Rhone" 754 select BOOT_ELF32 755 select DMA_COHERENT 756 select SIBYTE_BCM1125H 757 select SWAP_IO_SPACE 758 select SYS_HAS_CPU_SB1 759 select SYS_SUPPORTS_BIG_ENDIAN 760 select SYS_SUPPORTS_LITTLE_ENDIAN 761 762config SIBYTE_SWARM 763 bool "Sibyte BCM91250A-SWARM" 764 select BOOT_ELF32 765 select DMA_COHERENT 766 select HAVE_PATA_PLATFORM 767 select SIBYTE_SB1250 768 select SWAP_IO_SPACE 769 select SYS_HAS_CPU_SB1 770 select SYS_SUPPORTS_BIG_ENDIAN 771 select SYS_SUPPORTS_HIGHMEM 772 select SYS_SUPPORTS_LITTLE_ENDIAN 773 select ZONE_DMA32 if 64BIT 774 775config SIBYTE_LITTLESUR 776 bool "Sibyte BCM91250C2-LittleSur" 777 select BOOT_ELF32 778 select DMA_COHERENT 779 select HAVE_PATA_PLATFORM 780 select SIBYTE_SB1250 781 select SWAP_IO_SPACE 782 select SYS_HAS_CPU_SB1 783 select SYS_SUPPORTS_BIG_ENDIAN 784 select SYS_SUPPORTS_HIGHMEM 785 select SYS_SUPPORTS_LITTLE_ENDIAN 786 787config SIBYTE_SENTOSA 788 bool "Sibyte BCM91250E-Sentosa" 789 select BOOT_ELF32 790 select DMA_COHERENT 791 select SIBYTE_SB1250 792 select SWAP_IO_SPACE 793 select SYS_HAS_CPU_SB1 794 select SYS_SUPPORTS_BIG_ENDIAN 795 select SYS_SUPPORTS_LITTLE_ENDIAN 796 797config SIBYTE_BIGSUR 798 bool "Sibyte BCM91480B-BigSur" 799 select BOOT_ELF32 800 select DMA_COHERENT 801 select NR_CPUS_DEFAULT_4 802 select SIBYTE_BCM1x80 803 select SWAP_IO_SPACE 804 select SYS_HAS_CPU_SB1 805 select SYS_SUPPORTS_BIG_ENDIAN 806 select SYS_SUPPORTS_HIGHMEM 807 select SYS_SUPPORTS_LITTLE_ENDIAN 808 select ZONE_DMA32 if 64BIT 809 810config SNI_RM 811 bool "SNI RM200/300/400" 812 select FW_ARC if CPU_LITTLE_ENDIAN 813 select FW_ARC32 if CPU_LITTLE_ENDIAN 814 select FW_SNIPROM if CPU_BIG_ENDIAN 815 select ARCH_MAY_HAVE_PC_FDC 816 select BOOT_ELF32 817 select CEVT_R4K 818 select CSRC_R4K 819 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 820 select DMA_NONCOHERENT 821 select GENERIC_ISA_DMA 822 select HAVE_PCSPKR_PLATFORM 823 select HW_HAS_EISA 824 select HW_HAS_PCI 825 select IRQ_MIPS_CPU 826 select I8253 827 select I8259 828 select ISA 829 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 830 select SYS_HAS_CPU_R4X00 831 select SYS_HAS_CPU_R5000 832 select SYS_HAS_CPU_R10000 833 select R5000_CPU_SCACHE 834 select SYS_HAS_EARLY_PRINTK 835 select SYS_SUPPORTS_32BIT_KERNEL 836 select SYS_SUPPORTS_64BIT_KERNEL 837 select SYS_SUPPORTS_BIG_ENDIAN 838 select SYS_SUPPORTS_HIGHMEM 839 select SYS_SUPPORTS_LITTLE_ENDIAN 840 help 841 The SNI RM200/300/400 are MIPS-based machines manufactured by 842 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 843 Technology and now in turn merged with Fujitsu. Say Y here to 844 support this machine type. 845 846config MACH_TX39XX 847 bool "Toshiba TX39 series based machines" 848 849config MACH_TX49XX 850 bool "Toshiba TX49 series based machines" 851 852config MIKROTIK_RB532 853 bool "Mikrotik RB532 boards" 854 select CEVT_R4K 855 select CSRC_R4K 856 select DMA_NONCOHERENT 857 select HW_HAS_PCI 858 select IRQ_MIPS_CPU 859 select SYS_HAS_CPU_MIPS32_R1 860 select SYS_SUPPORTS_32BIT_KERNEL 861 select SYS_SUPPORTS_LITTLE_ENDIAN 862 select SWAP_IO_SPACE 863 select BOOT_RAW 864 select GPIOLIB 865 select MIPS_L1_CACHE_SHIFT_4 866 help 867 Support the Mikrotik(tm) RouterBoard 532 series, 868 based on the IDT RC32434 SoC. 869 870config CAVIUM_OCTEON_SOC 871 bool "Cavium Networks Octeon SoC based boards" 872 select CEVT_R4K 873 select ARCH_PHYS_ADDR_T_64BIT 874 select DMA_COHERENT 875 select SYS_SUPPORTS_64BIT_KERNEL 876 select SYS_SUPPORTS_BIG_ENDIAN 877 select EDAC_SUPPORT 878 select EDAC_ATOMIC_SCRUB 879 select SYS_SUPPORTS_LITTLE_ENDIAN 880 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN 881 select SYS_HAS_EARLY_PRINTK 882 select SYS_HAS_CPU_CAVIUM_OCTEON 883 select SWAP_IO_SPACE 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 HOTPLUG_CPU 1115 bool "Support for hot-pluggable CPUs" 1116 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 1117 help 1118 Say Y here to allow turning CPUs off and on. CPUs can be 1119 controlled through /sys/devices/system/cpu. 1120 (Note: power management support will enable this option 1121 automatically on SMP systems. ) 1122 Say N if you want to disable CPU hotplug. 1123 1124config SYS_SUPPORTS_HOTPLUG_CPU 1125 bool 1126 1127config MIPS_BONITO64 1128 bool 1129 1130config MIPS_MSC 1131 bool 1132 1133config MIPS_NILE4 1134 bool 1135 1136config SYNC_R4K 1137 bool 1138 1139config MIPS_MACHINE 1140 def_bool n 1141 1142config NO_IOPORT_MAP 1143 def_bool n 1144 1145config GENERIC_CSUM 1146 bool 1147 1148config GENERIC_ISA_DMA 1149 bool 1150 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1151 select ISA_DMA_API 1152 1153config GENERIC_ISA_DMA_SUPPORT_BROKEN 1154 bool 1155 select GENERIC_ISA_DMA 1156 1157config ISA_DMA_API 1158 bool 1159 1160config HOLES_IN_ZONE 1161 bool 1162 1163config SYS_SUPPORTS_RELOCATABLE 1164 bool 1165 help 1166 Selected if the platform supports relocating the kernel. 1167 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF 1168 to allow access to command line and entropy sources. 1169 1170# 1171# Endianness selection. Sufficiently obscure so many users don't know what to 1172# answer,so we try hard to limit the available choices. Also the use of a 1173# choice statement should be more obvious to the user. 1174# 1175choice 1176 prompt "Endianness selection" 1177 help 1178 Some MIPS machines can be configured for either little or big endian 1179 byte order. These modes require different kernels and a different 1180 Linux distribution. In general there is one preferred byteorder for a 1181 particular system but some systems are just as commonly used in the 1182 one or the other endianness. 1183 1184config CPU_BIG_ENDIAN 1185 bool "Big endian" 1186 depends on SYS_SUPPORTS_BIG_ENDIAN 1187 1188config CPU_LITTLE_ENDIAN 1189 bool "Little endian" 1190 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1191 1192endchoice 1193 1194config EXPORT_UASM 1195 bool 1196 1197config SYS_SUPPORTS_APM_EMULATION 1198 bool 1199 1200config SYS_SUPPORTS_BIG_ENDIAN 1201 bool 1202 1203config SYS_SUPPORTS_LITTLE_ENDIAN 1204 bool 1205 1206config SYS_SUPPORTS_HUGETLBFS 1207 bool 1208 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT 1209 default y 1210 1211config MIPS_HUGE_TLB_SUPPORT 1212 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1213 1214config IRQ_CPU_RM7K 1215 bool 1216 1217config IRQ_MSP_SLP 1218 bool 1219 1220config IRQ_MSP_CIC 1221 bool 1222 1223config IRQ_TXX9 1224 bool 1225 1226config IRQ_GT641XX 1227 bool 1228 1229config PCI_GT64XXX_PCI0 1230 bool 1231 1232config NO_EXCEPT_FILL 1233 bool 1234 1235config SOC_EMMA2RH 1236 bool 1237 select CEVT_R4K 1238 select CSRC_R4K 1239 select DMA_NONCOHERENT 1240 select IRQ_MIPS_CPU 1241 select SWAP_IO_SPACE 1242 select SYS_HAS_CPU_R5500 1243 select SYS_SUPPORTS_32BIT_KERNEL 1244 select SYS_SUPPORTS_64BIT_KERNEL 1245 select SYS_SUPPORTS_BIG_ENDIAN 1246 1247config SOC_PNX833X 1248 bool 1249 select CEVT_R4K 1250 select CSRC_R4K 1251 select IRQ_MIPS_CPU 1252 select DMA_NONCOHERENT 1253 select SYS_HAS_CPU_MIPS32_R2 1254 select SYS_SUPPORTS_32BIT_KERNEL 1255 select SYS_SUPPORTS_LITTLE_ENDIAN 1256 select SYS_SUPPORTS_BIG_ENDIAN 1257 select SYS_SUPPORTS_MIPS16 1258 select CPU_MIPSR2_IRQ_VI 1259 1260config SOC_PNX8335 1261 bool 1262 select SOC_PNX833X 1263 1264config MIPS_SPRAM 1265 bool 1266 1267config SWAP_IO_SPACE 1268 bool 1269 1270config SGI_HAS_INDYDOG 1271 bool 1272 1273config SGI_HAS_HAL2 1274 bool 1275 1276config SGI_HAS_SEEQ 1277 bool 1278 1279config SGI_HAS_WD93 1280 bool 1281 1282config SGI_HAS_ZILOG 1283 bool 1284 1285config SGI_HAS_I8042 1286 bool 1287 1288config DEFAULT_SGI_PARTITION 1289 bool 1290 1291config FW_ARC32 1292 bool 1293 1294config FW_SNIPROM 1295 bool 1296 1297config BOOT_ELF32 1298 bool 1299 1300config MIPS_L1_CACHE_SHIFT_4 1301 bool 1302 1303config MIPS_L1_CACHE_SHIFT_5 1304 bool 1305 1306config MIPS_L1_CACHE_SHIFT_6 1307 bool 1308 1309config MIPS_L1_CACHE_SHIFT_7 1310 bool 1311 1312config MIPS_L1_CACHE_SHIFT 1313 int 1314 default "7" if MIPS_L1_CACHE_SHIFT_7 1315 default "6" if MIPS_L1_CACHE_SHIFT_6 1316 default "5" if MIPS_L1_CACHE_SHIFT_5 1317 default "4" if MIPS_L1_CACHE_SHIFT_4 1318 default "5" 1319 1320config HAVE_STD_PC_SERIAL_PORT 1321 bool 1322 1323config ARC_CONSOLE 1324 bool "ARC console support" 1325 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1326 1327config ARC_MEMORY 1328 bool 1329 depends on MACH_JAZZ || SNI_RM || SGI_IP32 1330 default y 1331 1332config ARC_PROMLIB 1333 bool 1334 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 1335 default y 1336 1337config FW_ARC64 1338 bool 1339 1340config BOOT_ELF64 1341 bool 1342 1343menu "CPU selection" 1344 1345choice 1346 prompt "CPU type" 1347 default CPU_R4X00 1348 1349config CPU_LOONGSON3 1350 bool "Loongson 3 CPU" 1351 depends on SYS_HAS_CPU_LOONGSON3 1352 select CPU_SUPPORTS_64BIT_KERNEL 1353 select CPU_SUPPORTS_HIGHMEM 1354 select CPU_SUPPORTS_HUGEPAGES 1355 select WEAK_ORDERING 1356 select WEAK_REORDERING_BEYOND_LLSC 1357 select MIPS_PGD_C0_CONTEXT 1358 select GPIOLIB 1359 help 1360 The Loongson 3 processor implements the MIPS64R2 instruction 1361 set with many extensions. 1362 1363config LOONGSON3_ENHANCEMENT 1364 bool "New Loongson 3 CPU Enhancements" 1365 default n 1366 select CPU_MIPSR2 1367 select CPU_HAS_PREFETCH 1368 depends on CPU_LOONGSON3 1369 help 1370 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A 1371 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1372 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User 1373 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1374 Fast TLB refill support, etc. 1375 1376 This option enable those enhancements which are not probed at run 1377 time. If you want a generic kernel to run on all Loongson 3 machines, 1378 please say 'N' here. If you want a high-performance kernel to run on 1379 new Loongson 3 machines only, please say 'Y' here. 1380 1381config CPU_LOONGSON2E 1382 bool "Loongson 2E" 1383 depends on SYS_HAS_CPU_LOONGSON2E 1384 select CPU_LOONGSON2 1385 help 1386 The Loongson 2E processor implements the MIPS III instruction set 1387 with many extensions. 1388 1389 It has an internal FPGA northbridge, which is compatible to 1390 bonito64. 1391 1392config CPU_LOONGSON2F 1393 bool "Loongson 2F" 1394 depends on SYS_HAS_CPU_LOONGSON2F 1395 select CPU_LOONGSON2 1396 select GPIOLIB 1397 help 1398 The Loongson 2F processor implements the MIPS III instruction set 1399 with many extensions. 1400 1401 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1402 have a similar programming interface with FPGA northbridge used in 1403 Loongson2E. 1404 1405config CPU_LOONGSON1B 1406 bool "Loongson 1B" 1407 depends on SYS_HAS_CPU_LOONGSON1B 1408 select CPU_LOONGSON1 1409 select ARCH_WANT_OPTIONAL_GPIOLIB 1410 select LEDS_GPIO_REGISTER 1411 help 1412 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1413 release 2 instruction set. 1414 1415config CPU_MIPS32_R1 1416 bool "MIPS32 Release 1" 1417 depends on SYS_HAS_CPU_MIPS32_R1 1418 select CPU_HAS_PREFETCH 1419 select CPU_SUPPORTS_32BIT_KERNEL 1420 select CPU_SUPPORTS_HIGHMEM 1421 help 1422 Choose this option to build a kernel for release 1 or later of the 1423 MIPS32 architecture. Most modern embedded systems with a 32-bit 1424 MIPS processor are based on a MIPS32 processor. If you know the 1425 specific type of processor in your system, choose those that one 1426 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1427 Release 2 of the MIPS32 architecture is available since several 1428 years so chances are you even have a MIPS32 Release 2 processor 1429 in which case you should choose CPU_MIPS32_R2 instead for better 1430 performance. 1431 1432config CPU_MIPS32_R2 1433 bool "MIPS32 Release 2" 1434 depends on SYS_HAS_CPU_MIPS32_R2 1435 select CPU_HAS_PREFETCH 1436 select CPU_SUPPORTS_32BIT_KERNEL 1437 select CPU_SUPPORTS_HIGHMEM 1438 select CPU_SUPPORTS_MSA 1439 select HAVE_KVM 1440 help 1441 Choose this option to build a kernel for release 2 or later of the 1442 MIPS32 architecture. Most modern embedded systems with a 32-bit 1443 MIPS processor are based on a MIPS32 processor. If you know the 1444 specific type of processor in your system, choose those that one 1445 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1446 1447config CPU_MIPS32_R6 1448 bool "MIPS32 Release 6" 1449 depends on SYS_HAS_CPU_MIPS32_R6 1450 select CPU_HAS_PREFETCH 1451 select CPU_SUPPORTS_32BIT_KERNEL 1452 select CPU_SUPPORTS_HIGHMEM 1453 select CPU_SUPPORTS_MSA 1454 select GENERIC_CSUM 1455 select HAVE_KVM 1456 select MIPS_O32_FP64_SUPPORT 1457 help 1458 Choose this option to build a kernel for release 6 or later of the 1459 MIPS32 architecture. New MIPS processors, starting with the Warrior 1460 family, are based on a MIPS32r6 processor. If you own an older 1461 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1462 1463config CPU_MIPS64_R1 1464 bool "MIPS64 Release 1" 1465 depends on SYS_HAS_CPU_MIPS64_R1 1466 select CPU_HAS_PREFETCH 1467 select CPU_SUPPORTS_32BIT_KERNEL 1468 select CPU_SUPPORTS_64BIT_KERNEL 1469 select CPU_SUPPORTS_HIGHMEM 1470 select CPU_SUPPORTS_HUGEPAGES 1471 help 1472 Choose this option to build a kernel for release 1 or later of the 1473 MIPS64 architecture. Many modern embedded systems with a 64-bit 1474 MIPS processor are based on a MIPS64 processor. If you know the 1475 specific type of processor in your system, choose those that one 1476 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1477 Release 2 of the MIPS64 architecture is available since several 1478 years so chances are you even have a MIPS64 Release 2 processor 1479 in which case you should choose CPU_MIPS64_R2 instead for better 1480 performance. 1481 1482config CPU_MIPS64_R2 1483 bool "MIPS64 Release 2" 1484 depends on SYS_HAS_CPU_MIPS64_R2 1485 select CPU_HAS_PREFETCH 1486 select CPU_SUPPORTS_32BIT_KERNEL 1487 select CPU_SUPPORTS_64BIT_KERNEL 1488 select CPU_SUPPORTS_HIGHMEM 1489 select CPU_SUPPORTS_HUGEPAGES 1490 select CPU_SUPPORTS_MSA 1491 help 1492 Choose this option to build a kernel for release 2 or later of the 1493 MIPS64 architecture. Many modern embedded systems with a 64-bit 1494 MIPS processor are based on a MIPS64 processor. If you know the 1495 specific type of processor in your system, choose those that one 1496 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1497 1498config CPU_MIPS64_R6 1499 bool "MIPS64 Release 6" 1500 depends on SYS_HAS_CPU_MIPS64_R6 1501 select CPU_HAS_PREFETCH 1502 select CPU_SUPPORTS_32BIT_KERNEL 1503 select CPU_SUPPORTS_64BIT_KERNEL 1504 select CPU_SUPPORTS_HIGHMEM 1505 select CPU_SUPPORTS_MSA 1506 select GENERIC_CSUM 1507 select MIPS_O32_FP64_SUPPORT if MIPS32_O32 1508 help 1509 Choose this option to build a kernel for release 6 or later of the 1510 MIPS64 architecture. New MIPS processors, starting with the Warrior 1511 family, are based on a MIPS64r6 processor. If you own an older 1512 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1513 1514config CPU_R3000 1515 bool "R3000" 1516 depends on SYS_HAS_CPU_R3000 1517 select CPU_HAS_WB 1518 select CPU_SUPPORTS_32BIT_KERNEL 1519 select CPU_SUPPORTS_HIGHMEM 1520 help 1521 Please make sure to pick the right CPU type. Linux/MIPS is not 1522 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1523 *not* work on R4000 machines and vice versa. However, since most 1524 of the supported machines have an R4000 (or similar) CPU, R4x00 1525 might be a safe bet. If the resulting kernel does not work, 1526 try to recompile with R3000. 1527 1528config CPU_TX39XX 1529 bool "R39XX" 1530 depends on SYS_HAS_CPU_TX39XX 1531 select CPU_SUPPORTS_32BIT_KERNEL 1532 1533config CPU_VR41XX 1534 bool "R41xx" 1535 depends on SYS_HAS_CPU_VR41XX 1536 select CPU_SUPPORTS_32BIT_KERNEL 1537 select CPU_SUPPORTS_64BIT_KERNEL 1538 help 1539 The options selects support for the NEC VR4100 series of processors. 1540 Only choose this option if you have one of these processors as a 1541 kernel built with this option will not run on any other type of 1542 processor or vice versa. 1543 1544config CPU_R4300 1545 bool "R4300" 1546 depends on SYS_HAS_CPU_R4300 1547 select CPU_SUPPORTS_32BIT_KERNEL 1548 select CPU_SUPPORTS_64BIT_KERNEL 1549 help 1550 MIPS Technologies R4300-series processors. 1551 1552config CPU_R4X00 1553 bool "R4x00" 1554 depends on SYS_HAS_CPU_R4X00 1555 select CPU_SUPPORTS_32BIT_KERNEL 1556 select CPU_SUPPORTS_64BIT_KERNEL 1557 select CPU_SUPPORTS_HUGEPAGES 1558 help 1559 MIPS Technologies R4000-series processors other than 4300, including 1560 the R4000, R4400, R4600, and 4700. 1561 1562config CPU_TX49XX 1563 bool "R49XX" 1564 depends on SYS_HAS_CPU_TX49XX 1565 select CPU_HAS_PREFETCH 1566 select CPU_SUPPORTS_32BIT_KERNEL 1567 select CPU_SUPPORTS_64BIT_KERNEL 1568 select CPU_SUPPORTS_HUGEPAGES 1569 1570config CPU_R5000 1571 bool "R5000" 1572 depends on SYS_HAS_CPU_R5000 1573 select CPU_SUPPORTS_32BIT_KERNEL 1574 select CPU_SUPPORTS_64BIT_KERNEL 1575 select CPU_SUPPORTS_HUGEPAGES 1576 help 1577 MIPS Technologies R5000-series processors other than the Nevada. 1578 1579config CPU_R5432 1580 bool "R5432" 1581 depends on SYS_HAS_CPU_R5432 1582 select CPU_SUPPORTS_32BIT_KERNEL 1583 select CPU_SUPPORTS_64BIT_KERNEL 1584 select CPU_SUPPORTS_HUGEPAGES 1585 1586config CPU_R5500 1587 bool "R5500" 1588 depends on SYS_HAS_CPU_R5500 1589 select CPU_SUPPORTS_32BIT_KERNEL 1590 select CPU_SUPPORTS_64BIT_KERNEL 1591 select CPU_SUPPORTS_HUGEPAGES 1592 help 1593 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1594 instruction set. 1595 1596config CPU_R6000 1597 bool "R6000" 1598 depends on SYS_HAS_CPU_R6000 1599 select CPU_SUPPORTS_32BIT_KERNEL 1600 help 1601 MIPS Technologies R6000 and R6000A series processors. Note these 1602 processors are extremely rare and the support for them is incomplete. 1603 1604config CPU_NEVADA 1605 bool "RM52xx" 1606 depends on SYS_HAS_CPU_NEVADA 1607 select CPU_SUPPORTS_32BIT_KERNEL 1608 select CPU_SUPPORTS_64BIT_KERNEL 1609 select CPU_SUPPORTS_HUGEPAGES 1610 help 1611 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1612 1613config CPU_R8000 1614 bool "R8000" 1615 depends on SYS_HAS_CPU_R8000 1616 select CPU_HAS_PREFETCH 1617 select CPU_SUPPORTS_64BIT_KERNEL 1618 help 1619 MIPS Technologies R8000 processors. Note these processors are 1620 uncommon and the support for them is incomplete. 1621 1622config CPU_R10000 1623 bool "R10000" 1624 depends on SYS_HAS_CPU_R10000 1625 select CPU_HAS_PREFETCH 1626 select CPU_SUPPORTS_32BIT_KERNEL 1627 select CPU_SUPPORTS_64BIT_KERNEL 1628 select CPU_SUPPORTS_HIGHMEM 1629 select CPU_SUPPORTS_HUGEPAGES 1630 help 1631 MIPS Technologies R10000-series processors. 1632 1633config CPU_RM7000 1634 bool "RM7000" 1635 depends on SYS_HAS_CPU_RM7000 1636 select CPU_HAS_PREFETCH 1637 select CPU_SUPPORTS_32BIT_KERNEL 1638 select CPU_SUPPORTS_64BIT_KERNEL 1639 select CPU_SUPPORTS_HIGHMEM 1640 select CPU_SUPPORTS_HUGEPAGES 1641 1642config CPU_SB1 1643 bool "SB1" 1644 depends on SYS_HAS_CPU_SB1 1645 select CPU_SUPPORTS_32BIT_KERNEL 1646 select CPU_SUPPORTS_64BIT_KERNEL 1647 select CPU_SUPPORTS_HIGHMEM 1648 select CPU_SUPPORTS_HUGEPAGES 1649 select WEAK_ORDERING 1650 1651config CPU_CAVIUM_OCTEON 1652 bool "Cavium Octeon processor" 1653 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1654 select CPU_HAS_PREFETCH 1655 select CPU_SUPPORTS_64BIT_KERNEL 1656 select WEAK_ORDERING 1657 select CPU_SUPPORTS_HIGHMEM 1658 select CPU_SUPPORTS_HUGEPAGES 1659 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1660 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1661 select MIPS_L1_CACHE_SHIFT_7 1662 help 1663 The Cavium Octeon processor is a highly integrated chip containing 1664 many ethernet hardware widgets for networking tasks. The processor 1665 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1666 Full details can be found at http://www.caviumnetworks.com. 1667 1668config CPU_BMIPS 1669 bool "Broadcom BMIPS" 1670 depends on SYS_HAS_CPU_BMIPS 1671 select CPU_MIPS32 1672 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1673 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1674 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1675 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1676 select CPU_SUPPORTS_32BIT_KERNEL 1677 select DMA_NONCOHERENT 1678 select IRQ_MIPS_CPU 1679 select SWAP_IO_SPACE 1680 select WEAK_ORDERING 1681 select CPU_SUPPORTS_HIGHMEM 1682 select CPU_HAS_PREFETCH 1683 help 1684 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1685 1686config CPU_XLR 1687 bool "Netlogic XLR SoC" 1688 depends on SYS_HAS_CPU_XLR 1689 select CPU_SUPPORTS_32BIT_KERNEL 1690 select CPU_SUPPORTS_64BIT_KERNEL 1691 select CPU_SUPPORTS_HIGHMEM 1692 select CPU_SUPPORTS_HUGEPAGES 1693 select WEAK_ORDERING 1694 select WEAK_REORDERING_BEYOND_LLSC 1695 help 1696 Netlogic Microsystems XLR/XLS processors. 1697 1698config CPU_XLP 1699 bool "Netlogic XLP SoC" 1700 depends on SYS_HAS_CPU_XLP 1701 select CPU_SUPPORTS_32BIT_KERNEL 1702 select CPU_SUPPORTS_64BIT_KERNEL 1703 select CPU_SUPPORTS_HIGHMEM 1704 select WEAK_ORDERING 1705 select WEAK_REORDERING_BEYOND_LLSC 1706 select CPU_HAS_PREFETCH 1707 select CPU_MIPSR2 1708 select CPU_SUPPORTS_HUGEPAGES 1709 select MIPS_ASID_BITS_VARIABLE 1710 help 1711 Netlogic Microsystems XLP processors. 1712endchoice 1713 1714config CPU_MIPS32_3_5_FEATURES 1715 bool "MIPS32 Release 3.5 Features" 1716 depends on SYS_HAS_CPU_MIPS32_R3_5 1717 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6 1718 help 1719 Choose this option to build a kernel for release 2 or later of the 1720 MIPS32 architecture including features from the 3.5 release such as 1721 support for Enhanced Virtual Addressing (EVA). 1722 1723config CPU_MIPS32_3_5_EVA 1724 bool "Enhanced Virtual Addressing (EVA)" 1725 depends on CPU_MIPS32_3_5_FEATURES 1726 select EVA 1727 default y 1728 help 1729 Choose this option if you want to enable the Enhanced Virtual 1730 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1731 One of its primary benefits is an increase in the maximum size 1732 of lowmem (up to 3GB). If unsure, say 'N' here. 1733 1734config CPU_MIPS32_R5_FEATURES 1735 bool "MIPS32 Release 5 Features" 1736 depends on SYS_HAS_CPU_MIPS32_R5 1737 depends on CPU_MIPS32_R2 1738 help 1739 Choose this option to build a kernel for release 2 or later of the 1740 MIPS32 architecture including features from release 5 such as 1741 support for Extended Physical Addressing (XPA). 1742 1743config CPU_MIPS32_R5_XPA 1744 bool "Extended Physical Addressing (XPA)" 1745 depends on CPU_MIPS32_R5_FEATURES 1746 depends on !EVA 1747 depends on !PAGE_SIZE_4KB 1748 depends on SYS_SUPPORTS_HIGHMEM 1749 select XPA 1750 select HIGHMEM 1751 select ARCH_PHYS_ADDR_T_64BIT 1752 default n 1753 help 1754 Choose this option if you want to enable the Extended Physical 1755 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1756 benefit is to increase physical addressing equal to or greater 1757 than 40 bits. Note that this has the side effect of turning on 1758 64-bit addressing which in turn makes the PTEs 64-bit in size. 1759 If unsure, say 'N' here. 1760 1761if CPU_LOONGSON2F 1762config CPU_NOP_WORKAROUNDS 1763 bool 1764 1765config CPU_JUMP_WORKAROUNDS 1766 bool 1767 1768config CPU_LOONGSON2F_WORKAROUNDS 1769 bool "Loongson 2F Workarounds" 1770 default y 1771 select CPU_NOP_WORKAROUNDS 1772 select CPU_JUMP_WORKAROUNDS 1773 help 1774 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1775 require workarounds. Without workarounds the system may hang 1776 unexpectedly. For more information please refer to the gas 1777 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1778 1779 Loongson 2F03 and later have fixed these issues and no workarounds 1780 are needed. The workarounds have no significant side effect on them 1781 but may decrease the performance of the system so this option should 1782 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1783 systems. 1784 1785 If unsure, please say Y. 1786endif # CPU_LOONGSON2F 1787 1788config SYS_SUPPORTS_ZBOOT 1789 bool 1790 select HAVE_KERNEL_GZIP 1791 select HAVE_KERNEL_BZIP2 1792 select HAVE_KERNEL_LZ4 1793 select HAVE_KERNEL_LZMA 1794 select HAVE_KERNEL_LZO 1795 select HAVE_KERNEL_XZ 1796 1797config SYS_SUPPORTS_ZBOOT_UART16550 1798 bool 1799 select SYS_SUPPORTS_ZBOOT 1800 1801config SYS_SUPPORTS_ZBOOT_UART_PROM 1802 bool 1803 select SYS_SUPPORTS_ZBOOT 1804 1805config CPU_LOONGSON2 1806 bool 1807 select CPU_SUPPORTS_32BIT_KERNEL 1808 select CPU_SUPPORTS_64BIT_KERNEL 1809 select CPU_SUPPORTS_HIGHMEM 1810 select CPU_SUPPORTS_HUGEPAGES 1811 1812config CPU_LOONGSON1 1813 bool 1814 select CPU_MIPS32 1815 select CPU_MIPSR2 1816 select CPU_HAS_PREFETCH 1817 select CPU_SUPPORTS_32BIT_KERNEL 1818 select CPU_SUPPORTS_HIGHMEM 1819 select CPU_SUPPORTS_CPUFREQ 1820 1821config CPU_BMIPS32_3300 1822 select SMP_UP if SMP 1823 bool 1824 1825config CPU_BMIPS4350 1826 bool 1827 select SYS_SUPPORTS_SMP 1828 select SYS_SUPPORTS_HOTPLUG_CPU 1829 1830config CPU_BMIPS4380 1831 bool 1832 select MIPS_L1_CACHE_SHIFT_6 1833 select SYS_SUPPORTS_SMP 1834 select SYS_SUPPORTS_HOTPLUG_CPU 1835 select CPU_HAS_RIXI 1836 1837config CPU_BMIPS5000 1838 bool 1839 select MIPS_CPU_SCACHE 1840 select MIPS_L1_CACHE_SHIFT_7 1841 select SYS_SUPPORTS_SMP 1842 select SYS_SUPPORTS_HOTPLUG_CPU 1843 select CPU_HAS_RIXI 1844 1845config SYS_HAS_CPU_LOONGSON3 1846 bool 1847 select CPU_SUPPORTS_CPUFREQ 1848 select CPU_HAS_RIXI 1849 1850config SYS_HAS_CPU_LOONGSON2E 1851 bool 1852 1853config SYS_HAS_CPU_LOONGSON2F 1854 bool 1855 select CPU_SUPPORTS_CPUFREQ 1856 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1857 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1858 1859config SYS_HAS_CPU_LOONGSON1B 1860 bool 1861 1862config SYS_HAS_CPU_MIPS32_R1 1863 bool 1864 1865config SYS_HAS_CPU_MIPS32_R2 1866 bool 1867 1868config SYS_HAS_CPU_MIPS32_R3_5 1869 bool 1870 1871config SYS_HAS_CPU_MIPS32_R5 1872 bool 1873 1874config SYS_HAS_CPU_MIPS32_R6 1875 bool 1876 1877config SYS_HAS_CPU_MIPS64_R1 1878 bool 1879 1880config SYS_HAS_CPU_MIPS64_R2 1881 bool 1882 1883config SYS_HAS_CPU_MIPS64_R6 1884 bool 1885 1886config SYS_HAS_CPU_R3000 1887 bool 1888 1889config SYS_HAS_CPU_TX39XX 1890 bool 1891 1892config SYS_HAS_CPU_VR41XX 1893 bool 1894 1895config SYS_HAS_CPU_R4300 1896 bool 1897 1898config SYS_HAS_CPU_R4X00 1899 bool 1900 1901config SYS_HAS_CPU_TX49XX 1902 bool 1903 1904config SYS_HAS_CPU_R5000 1905 bool 1906 1907config SYS_HAS_CPU_R5432 1908 bool 1909 1910config SYS_HAS_CPU_R5500 1911 bool 1912 1913config SYS_HAS_CPU_R6000 1914 bool 1915 1916config SYS_HAS_CPU_NEVADA 1917 bool 1918 1919config SYS_HAS_CPU_R8000 1920 bool 1921 1922config SYS_HAS_CPU_R10000 1923 bool 1924 1925config SYS_HAS_CPU_RM7000 1926 bool 1927 1928config SYS_HAS_CPU_SB1 1929 bool 1930 1931config SYS_HAS_CPU_CAVIUM_OCTEON 1932 bool 1933 1934config SYS_HAS_CPU_BMIPS 1935 bool 1936 1937config SYS_HAS_CPU_BMIPS32_3300 1938 bool 1939 select SYS_HAS_CPU_BMIPS 1940 1941config SYS_HAS_CPU_BMIPS4350 1942 bool 1943 select SYS_HAS_CPU_BMIPS 1944 1945config SYS_HAS_CPU_BMIPS4380 1946 bool 1947 select SYS_HAS_CPU_BMIPS 1948 1949config SYS_HAS_CPU_BMIPS5000 1950 bool 1951 select SYS_HAS_CPU_BMIPS 1952 1953config SYS_HAS_CPU_XLR 1954 bool 1955 1956config SYS_HAS_CPU_XLP 1957 bool 1958 1959config MIPS_MALTA_PM 1960 depends on MIPS_MALTA 1961 depends on PCI 1962 bool 1963 default y 1964 1965# 1966# CPU may reorder R->R, R->W, W->R, W->W 1967# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 1968# 1969config WEAK_ORDERING 1970 bool 1971 1972# 1973# CPU may reorder reads and writes beyond LL/SC 1974# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 1975# 1976config WEAK_REORDERING_BEYOND_LLSC 1977 bool 1978endmenu 1979 1980# 1981# These two indicate any level of the MIPS32 and MIPS64 architecture 1982# 1983config CPU_MIPS32 1984 bool 1985 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6 1986 1987config CPU_MIPS64 1988 bool 1989 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 1990 1991# 1992# These two indicate the revision of the architecture, either Release 1 or Release 2 1993# 1994config CPU_MIPSR1 1995 bool 1996 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 1997 1998config CPU_MIPSR2 1999 bool 2000 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2001 select CPU_HAS_RIXI 2002 select MIPS_SPRAM 2003 2004config CPU_MIPSR6 2005 bool 2006 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2007 select CPU_HAS_RIXI 2008 select HAVE_ARCH_BITREVERSE 2009 select MIPS_ASID_BITS_VARIABLE 2010 select MIPS_SPRAM 2011 2012config EVA 2013 bool 2014 2015config XPA 2016 bool 2017 2018config SYS_SUPPORTS_32BIT_KERNEL 2019 bool 2020config SYS_SUPPORTS_64BIT_KERNEL 2021 bool 2022config CPU_SUPPORTS_32BIT_KERNEL 2023 bool 2024config CPU_SUPPORTS_64BIT_KERNEL 2025 bool 2026config CPU_SUPPORTS_CPUFREQ 2027 bool 2028config CPU_SUPPORTS_ADDRWINCFG 2029 bool 2030config CPU_SUPPORTS_HUGEPAGES 2031 bool 2032config CPU_SUPPORTS_UNCACHED_ACCELERATED 2033 bool 2034config MIPS_PGD_C0_CONTEXT 2035 bool 2036 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP 2037 2038# 2039# Set to y for ptrace access to watch registers. 2040# 2041config HARDWARE_WATCHPOINTS 2042 bool 2043 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2044 2045menu "Kernel type" 2046 2047choice 2048 prompt "Kernel code model" 2049 help 2050 You should only select this option if you have a workload that 2051 actually benefits from 64-bit processing or if your machine has 2052 large memory. You will only be presented a single option in this 2053 menu if your system does not support both 32-bit and 64-bit kernels. 2054 2055config 32BIT 2056 bool "32-bit kernel" 2057 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2058 select TRAD_SIGNALS 2059 help 2060 Select this option if you want to build a 32-bit kernel. 2061 2062config 64BIT 2063 bool "64-bit kernel" 2064 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2065 help 2066 Select this option if you want to build a 64-bit kernel. 2067 2068endchoice 2069 2070config KVM_GUEST 2071 bool "KVM Guest Kernel" 2072 depends on BROKEN_ON_SMP 2073 help 2074 Select this option if building a guest kernel for KVM (Trap & Emulate) 2075 mode. 2076 2077config KVM_GUEST_TIMER_FREQ 2078 int "Count/Compare Timer Frequency (MHz)" 2079 depends on KVM_GUEST 2080 default 100 2081 help 2082 Set this to non-zero if building a guest kernel for KVM to skip RTC 2083 emulation when determining guest CPU Frequency. Instead, the guest's 2084 timer frequency is specified directly. 2085 2086config MIPS_VA_BITS_48 2087 bool "48 bits virtual memory" 2088 depends on 64BIT 2089 help 2090 Support a maximum at least 48 bits of application virtual memory. 2091 Default is 40 bits or less, depending on the CPU. 2092 This option result in a small memory overhead for page tables. 2093 This option is only supported with 16k and 64k page sizes. 2094 If unsure, say N. 2095 2096choice 2097 prompt "Kernel page size" 2098 default PAGE_SIZE_4KB 2099 2100config PAGE_SIZE_4KB 2101 bool "4kB" 2102 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3 2103 depends on !MIPS_VA_BITS_48 2104 help 2105 This option select the standard 4kB Linux page size. On some 2106 R3000-family processors this is the only available page size. Using 2107 4kB page size will minimize memory consumption and is therefore 2108 recommended for low memory systems. 2109 2110config PAGE_SIZE_8KB 2111 bool "8kB" 2112 depends on CPU_R8000 || CPU_CAVIUM_OCTEON 2113 depends on !MIPS_VA_BITS_48 2114 help 2115 Using 8kB page size will result in higher performance kernel at 2116 the price of higher memory consumption. This option is available 2117 only on R8000 and cnMIPS processors. Note that you will need a 2118 suitable Linux distribution to support this. 2119 2120config PAGE_SIZE_16KB 2121 bool "16kB" 2122 depends on !CPU_R3000 && !CPU_TX39XX 2123 help 2124 Using 16kB page size will result in higher performance kernel at 2125 the price of higher memory consumption. This option is available on 2126 all non-R3000 family processors. Note that you will need a suitable 2127 Linux distribution to support this. 2128 2129config PAGE_SIZE_32KB 2130 bool "32kB" 2131 depends on CPU_CAVIUM_OCTEON 2132 depends on !MIPS_VA_BITS_48 2133 help 2134 Using 32kB page size will result in higher performance kernel at 2135 the price of higher memory consumption. This option is available 2136 only on cnMIPS cores. Note that you will need a suitable Linux 2137 distribution to support this. 2138 2139config PAGE_SIZE_64KB 2140 bool "64kB" 2141 depends on !CPU_R3000 && !CPU_TX39XX && !CPU_R6000 2142 help 2143 Using 64kB page size will result in higher performance kernel at 2144 the price of higher memory consumption. This option is available on 2145 all non-R3000 family processor. Not that at the time of this 2146 writing this option is still high experimental. 2147 2148endchoice 2149 2150config FORCE_MAX_ZONEORDER 2151 int "Maximum zone order" 2152 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2153 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2154 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2155 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2156 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2157 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2158 range 11 64 2159 default "11" 2160 help 2161 The kernel memory allocator divides physically contiguous memory 2162 blocks into "zones", where each zone is a power of two number of 2163 pages. This option selects the largest power of two that the kernel 2164 keeps in the memory allocator. If you need to allocate very large 2165 blocks of physically contiguous memory, then you may need to 2166 increase this value. 2167 2168 This config option is actually maximum order plus one. For example, 2169 a value of 11 means that the largest free memory block is 2^10 pages. 2170 2171 The page size is not necessarily 4KB. Keep this in mind 2172 when choosing a value for this option. 2173 2174config BOARD_SCACHE 2175 bool 2176 2177config IP22_CPU_SCACHE 2178 bool 2179 select BOARD_SCACHE 2180 2181# 2182# Support for a MIPS32 / MIPS64 style S-caches 2183# 2184config MIPS_CPU_SCACHE 2185 bool 2186 select BOARD_SCACHE 2187 2188config R5000_CPU_SCACHE 2189 bool 2190 select BOARD_SCACHE 2191 2192config RM7000_CPU_SCACHE 2193 bool 2194 select BOARD_SCACHE 2195 2196config SIBYTE_DMA_PAGEOPS 2197 bool "Use DMA to clear/copy pages" 2198 depends on CPU_SB1 2199 help 2200 Instead of using the CPU to zero and copy pages, use a Data Mover 2201 channel. These DMA channels are otherwise unused by the standard 2202 SiByte Linux port. Seems to give a small performance benefit. 2203 2204config CPU_HAS_PREFETCH 2205 bool 2206 2207config CPU_GENERIC_DUMP_TLB 2208 bool 2209 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX) 2210 2211config CPU_R4K_FPU 2212 bool 2213 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 2214 2215config CPU_R4K_CACHE_TLB 2216 bool 2217 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 2218 2219config MIPS_MT_SMP 2220 bool "MIPS MT SMP support (1 TC on each available VPE)" 2221 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 2222 select CPU_MIPSR2_IRQ_VI 2223 select CPU_MIPSR2_IRQ_EI 2224 select SYNC_R4K 2225 select MIPS_MT 2226 select SMP 2227 select SMP_UP 2228 select SYS_SUPPORTS_SMP 2229 select SYS_SUPPORTS_SCHED_SMT 2230 select MIPS_PERF_SHARED_TC_COUNTERS 2231 help 2232 This is a kernel model which is known as SMVP. This is supported 2233 on cores with the MT ASE and uses the available VPEs to implement 2234 virtual processors which supports SMP. This is equivalent to the 2235 Intel Hyperthreading feature. For further information go to 2236 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2237 2238config MIPS_MT 2239 bool 2240 2241config SCHED_SMT 2242 bool "SMT (multithreading) scheduler support" 2243 depends on SYS_SUPPORTS_SCHED_SMT 2244 default n 2245 help 2246 SMT scheduler support improves the CPU scheduler's decision making 2247 when dealing with MIPS MT enabled cores at a cost of slightly 2248 increased overhead in some places. If unsure say N here. 2249 2250config SYS_SUPPORTS_SCHED_SMT 2251 bool 2252 2253config SYS_SUPPORTS_MULTITHREADING 2254 bool 2255 2256config MIPS_MT_FPAFF 2257 bool "Dynamic FPU affinity for FP-intensive threads" 2258 default y 2259 depends on MIPS_MT_SMP 2260 2261config MIPSR2_TO_R6_EMULATOR 2262 bool "MIPS R2-to-R6 emulator" 2263 depends on CPU_MIPSR6 && !SMP 2264 default y 2265 help 2266 Choose this option if you want to run non-R6 MIPS userland code. 2267 Even if you say 'Y' here, the emulator will still be disabled by 2268 default. You can enable it using the 'mipsr2emu' kernel option. 2269 The only reason this is a build-time option is to save ~14K from the 2270 final kernel image. 2271comment "MIPS R2-to-R6 emulator is only available for UP kernels" 2272 depends on SMP && CPU_MIPSR6 2273 2274config MIPS_VPE_LOADER 2275 bool "VPE loader support." 2276 depends on SYS_SUPPORTS_MULTITHREADING && MODULES 2277 select CPU_MIPSR2_IRQ_VI 2278 select CPU_MIPSR2_IRQ_EI 2279 select MIPS_MT 2280 help 2281 Includes a loader for loading an elf relocatable object 2282 onto another VPE and running it. 2283 2284config MIPS_VPE_LOADER_CMP 2285 bool 2286 default "y" 2287 depends on MIPS_VPE_LOADER && MIPS_CMP 2288 2289config MIPS_VPE_LOADER_MT 2290 bool 2291 default "y" 2292 depends on MIPS_VPE_LOADER && !MIPS_CMP 2293 2294config MIPS_VPE_LOADER_TOM 2295 bool "Load VPE program into memory hidden from linux" 2296 depends on MIPS_VPE_LOADER 2297 default y 2298 help 2299 The loader can use memory that is present but has been hidden from 2300 Linux using the kernel command line option "mem=xxMB". It's up to 2301 you to ensure the amount you put in the option and the space your 2302 program requires is less or equal to the amount physically present. 2303 2304config MIPS_VPE_APSP_API 2305 bool "Enable support for AP/SP API (RTLX)" 2306 depends on MIPS_VPE_LOADER 2307 help 2308 2309config MIPS_VPE_APSP_API_CMP 2310 bool 2311 default "y" 2312 depends on MIPS_VPE_APSP_API && MIPS_CMP 2313 2314config MIPS_VPE_APSP_API_MT 2315 bool 2316 default "y" 2317 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2318 2319config MIPS_CMP 2320 bool "MIPS CMP framework support (DEPRECATED)" 2321 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2322 select SMP 2323 select SYNC_R4K 2324 select SYS_SUPPORTS_SMP 2325 select WEAK_ORDERING 2326 default n 2327 help 2328 Select this if you are using a bootloader which implements the "CMP 2329 framework" protocol (ie. YAMON) and want your kernel to make use of 2330 its ability to start secondary CPUs. 2331 2332 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2333 instead of this. 2334 2335config MIPS_CPS 2336 bool "MIPS Coherent Processing System support" 2337 depends on SYS_SUPPORTS_MIPS_CPS 2338 select MIPS_CM 2339 select MIPS_CPC 2340 select MIPS_CPS_PM if HOTPLUG_CPU 2341 select SMP 2342 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2343 select SYS_SUPPORTS_HOTPLUG_CPU 2344 select SYS_SUPPORTS_SMP 2345 select WEAK_ORDERING 2346 help 2347 Select this if you wish to run an SMP kernel across multiple cores 2348 within a MIPS Coherent Processing System. When this option is 2349 enabled the kernel will probe for other cores and boot them with 2350 no external assistance. It is safe to enable this when hardware 2351 support is unavailable. 2352 2353config MIPS_CPS_PM 2354 depends on MIPS_CPS 2355 select MIPS_CPC 2356 bool 2357 2358config MIPS_CM 2359 bool 2360 2361config MIPS_CPC 2362 bool 2363 2364config SB1_PASS_2_WORKAROUNDS 2365 bool 2366 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2367 default y 2368 2369config SB1_PASS_2_1_WORKAROUNDS 2370 bool 2371 depends on CPU_SB1 && CPU_SB1_PASS_2 2372 default y 2373 2374 2375config ARCH_PHYS_ADDR_T_64BIT 2376 bool 2377 2378choice 2379 prompt "SmartMIPS or microMIPS ASE support" 2380 2381config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2382 bool "None" 2383 help 2384 Select this if you want neither microMIPS nor SmartMIPS support 2385 2386config CPU_HAS_SMARTMIPS 2387 depends on SYS_SUPPORTS_SMARTMIPS 2388 bool "SmartMIPS" 2389 help 2390 SmartMIPS is a extension of the MIPS32 architecture aimed at 2391 increased security at both hardware and software level for 2392 smartcards. Enabling this option will allow proper use of the 2393 SmartMIPS instructions by Linux applications. However a kernel with 2394 this option will not work on a MIPS core without SmartMIPS core. If 2395 you don't know you probably don't have SmartMIPS and should say N 2396 here. 2397 2398config CPU_MICROMIPS 2399 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2400 bool "microMIPS" 2401 help 2402 When this option is enabled the kernel will be built using the 2403 microMIPS ISA 2404 2405endchoice 2406 2407config CPU_HAS_MSA 2408 bool "Support for the MIPS SIMD Architecture" 2409 depends on CPU_SUPPORTS_MSA 2410 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2411 help 2412 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2413 and a set of SIMD instructions to operate on them. When this option 2414 is enabled the kernel will support allocating & switching MSA 2415 vector register contexts. If you know that your kernel will only be 2416 running on CPUs which do not support MSA or that your userland will 2417 not be making use of it then you may wish to say N here to reduce 2418 the size & complexity of your kernel. 2419 2420 If unsure, say Y. 2421 2422config CPU_HAS_WB 2423 bool 2424 2425config XKS01 2426 bool 2427 2428config CPU_HAS_RIXI 2429 bool 2430 2431# 2432# Vectored interrupt mode is an R2 feature 2433# 2434config CPU_MIPSR2_IRQ_VI 2435 bool 2436 2437# 2438# Extended interrupt mode is an R2 feature 2439# 2440config CPU_MIPSR2_IRQ_EI 2441 bool 2442 2443config CPU_HAS_SYNC 2444 bool 2445 depends on !CPU_R3000 2446 default y 2447 2448# 2449# CPU non-features 2450# 2451config CPU_DADDI_WORKAROUNDS 2452 bool 2453 2454config CPU_R4000_WORKAROUNDS 2455 bool 2456 select CPU_R4400_WORKAROUNDS 2457 2458config CPU_R4400_WORKAROUNDS 2459 bool 2460 2461config MIPS_ASID_SHIFT 2462 int 2463 default 6 if CPU_R3000 || CPU_TX39XX 2464 default 4 if CPU_R8000 2465 default 0 2466 2467config MIPS_ASID_BITS 2468 int 2469 default 0 if MIPS_ASID_BITS_VARIABLE 2470 default 6 if CPU_R3000 || CPU_TX39XX 2471 default 8 2472 2473config MIPS_ASID_BITS_VARIABLE 2474 bool 2475 2476# 2477# - Highmem only makes sense for the 32-bit kernel. 2478# - The current highmem code will only work properly on physically indexed 2479# caches such as R3000, SB1, R7000 or those that look like they're virtually 2480# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2481# moment we protect the user and offer the highmem option only on machines 2482# where it's known to be safe. This will not offer highmem on a few systems 2483# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2484# indexed CPUs but we're playing safe. 2485# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2486# know they might have memory configurations that could make use of highmem 2487# support. 2488# 2489config HIGHMEM 2490 bool "High Memory Support" 2491 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2492 2493config CPU_SUPPORTS_HIGHMEM 2494 bool 2495 2496config SYS_SUPPORTS_HIGHMEM 2497 bool 2498 2499config SYS_SUPPORTS_SMARTMIPS 2500 bool 2501 2502config SYS_SUPPORTS_MICROMIPS 2503 bool 2504 2505config SYS_SUPPORTS_MIPS16 2506 bool 2507 help 2508 This option must be set if a kernel might be executed on a MIPS16- 2509 enabled CPU even if MIPS16 is not actually being used. In other 2510 words, it makes the kernel MIPS16-tolerant. 2511 2512config CPU_SUPPORTS_MSA 2513 bool 2514 2515config ARCH_FLATMEM_ENABLE 2516 def_bool y 2517 depends on !NUMA && !CPU_LOONGSON2 2518 2519config ARCH_DISCONTIGMEM_ENABLE 2520 bool 2521 default y if SGI_IP27 2522 help 2523 Say Y to support efficient handling of discontiguous physical memory, 2524 for architectures which are either NUMA (Non-Uniform Memory Access) 2525 or have huge holes in the physical address space for other reasons. 2526 See <file:Documentation/vm/numa> for more. 2527 2528config ARCH_SPARSEMEM_ENABLE 2529 bool 2530 select SPARSEMEM_STATIC 2531 2532config NUMA 2533 bool "NUMA Support" 2534 depends on SYS_SUPPORTS_NUMA 2535 help 2536 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2537 Access). This option improves performance on systems with more 2538 than two nodes; on two node systems it is generally better to 2539 leave it disabled; on single node systems disable this option 2540 disabled. 2541 2542config SYS_SUPPORTS_NUMA 2543 bool 2544 2545config RELOCATABLE 2546 bool "Relocatable kernel" 2547 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6) 2548 help 2549 This builds a kernel image that retains relocation information 2550 so it can be loaded someplace besides the default 1MB. 2551 The relocations make the kernel binary about 15% larger, 2552 but are discarded at runtime 2553 2554config RELOCATION_TABLE_SIZE 2555 hex "Relocation table size" 2556 depends on RELOCATABLE 2557 range 0x0 0x01000000 2558 default "0x00100000" 2559 ---help--- 2560 A table of relocation data will be appended to the kernel binary 2561 and parsed at boot to fix up the relocated kernel. 2562 2563 This option allows the amount of space reserved for the table to be 2564 adjusted, although the default of 1Mb should be ok in most cases. 2565 2566 The build will fail and a valid size suggested if this is too small. 2567 2568 If unsure, leave at the default value. 2569 2570config RANDOMIZE_BASE 2571 bool "Randomize the address of the kernel image" 2572 depends on RELOCATABLE 2573 ---help--- 2574 Randomizes the physical and virtual address at which the 2575 kernel image is loaded, as a security feature that 2576 deters exploit attempts relying on knowledge of the location 2577 of kernel internals. 2578 2579 Entropy is generated using any coprocessor 0 registers available. 2580 2581 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2582 2583 If unsure, say N. 2584 2585config RANDOMIZE_BASE_MAX_OFFSET 2586 hex "Maximum kASLR offset" if EXPERT 2587 depends on RANDOMIZE_BASE 2588 range 0x0 0x40000000 if EVA || 64BIT 2589 range 0x0 0x08000000 2590 default "0x01000000" 2591 ---help--- 2592 When kASLR is active, this provides the maximum offset that will 2593 be applied to the kernel image. It should be set according to the 2594 amount of physical RAM available in the target system minus 2595 PHYSICAL_START and must be a power of 2. 2596 2597 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2598 EVA or 64-bit. The default is 16Mb. 2599 2600config NODES_SHIFT 2601 int 2602 default "6" 2603 depends on NEED_MULTIPLE_NODES 2604 2605config HW_PERF_EVENTS 2606 bool "Enable hardware performance counter support for perf events" 2607 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3) 2608 default y 2609 help 2610 Enable hardware performance counter support for perf events. If 2611 disabled, perf events will use software events only. 2612 2613source "mm/Kconfig" 2614 2615config SMP 2616 bool "Multi-Processing support" 2617 depends on SYS_SUPPORTS_SMP 2618 help 2619 This enables support for systems with more than one CPU. If you have 2620 a system with only one CPU, say N. If you have a system with more 2621 than one CPU, say Y. 2622 2623 If you say N here, the kernel will run on uni- and multiprocessor 2624 machines, but will use only one CPU of a multiprocessor machine. If 2625 you say Y here, the kernel will run on many, but not all, 2626 uniprocessor machines. On a uniprocessor machine, the kernel 2627 will run faster if you say N here. 2628 2629 People using multiprocessor machines who say Y here should also say 2630 Y to "Enhanced Real Time Clock Support", below. 2631 2632 See also the SMP-HOWTO available at 2633 <http://www.tldp.org/docs.html#howto>. 2634 2635 If you don't know what to do here, say N. 2636 2637config SMP_UP 2638 bool 2639 2640config SYS_SUPPORTS_MIPS_CMP 2641 bool 2642 2643config SYS_SUPPORTS_MIPS_CPS 2644 bool 2645 2646config SYS_SUPPORTS_SMP 2647 bool 2648 2649config NR_CPUS_DEFAULT_4 2650 bool 2651 2652config NR_CPUS_DEFAULT_8 2653 bool 2654 2655config NR_CPUS_DEFAULT_16 2656 bool 2657 2658config NR_CPUS_DEFAULT_32 2659 bool 2660 2661config NR_CPUS_DEFAULT_64 2662 bool 2663 2664config NR_CPUS 2665 int "Maximum number of CPUs (2-256)" 2666 range 2 256 2667 depends on SMP 2668 default "4" if NR_CPUS_DEFAULT_4 2669 default "8" if NR_CPUS_DEFAULT_8 2670 default "16" if NR_CPUS_DEFAULT_16 2671 default "32" if NR_CPUS_DEFAULT_32 2672 default "64" if NR_CPUS_DEFAULT_64 2673 help 2674 This allows you to specify the maximum number of CPUs which this 2675 kernel will support. The maximum supported value is 32 for 32-bit 2676 kernel and 64 for 64-bit kernels; the minimum value which makes 2677 sense is 1 for Qemu (useful only for kernel debugging purposes) 2678 and 2 for all others. 2679 2680 This is purely to save memory - each supported CPU adds 2681 approximately eight kilobytes to the kernel image. For best 2682 performance should round up your number of processors to the next 2683 power of two. 2684 2685config MIPS_PERF_SHARED_TC_COUNTERS 2686 bool 2687 2688# 2689# Timer Interrupt Frequency Configuration 2690# 2691 2692choice 2693 prompt "Timer frequency" 2694 default HZ_250 2695 help 2696 Allows the configuration of the timer frequency. 2697 2698 config HZ_24 2699 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2700 2701 config HZ_48 2702 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2703 2704 config HZ_100 2705 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2706 2707 config HZ_128 2708 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2709 2710 config HZ_250 2711 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2712 2713 config HZ_256 2714 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2715 2716 config HZ_1000 2717 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2718 2719 config HZ_1024 2720 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2721 2722endchoice 2723 2724config SYS_SUPPORTS_24HZ 2725 bool 2726 2727config SYS_SUPPORTS_48HZ 2728 bool 2729 2730config SYS_SUPPORTS_100HZ 2731 bool 2732 2733config SYS_SUPPORTS_128HZ 2734 bool 2735 2736config SYS_SUPPORTS_250HZ 2737 bool 2738 2739config SYS_SUPPORTS_256HZ 2740 bool 2741 2742config SYS_SUPPORTS_1000HZ 2743 bool 2744 2745config SYS_SUPPORTS_1024HZ 2746 bool 2747 2748config SYS_SUPPORTS_ARBIT_HZ 2749 bool 2750 default y if !SYS_SUPPORTS_24HZ && \ 2751 !SYS_SUPPORTS_48HZ && \ 2752 !SYS_SUPPORTS_100HZ && \ 2753 !SYS_SUPPORTS_128HZ && \ 2754 !SYS_SUPPORTS_250HZ && \ 2755 !SYS_SUPPORTS_256HZ && \ 2756 !SYS_SUPPORTS_1000HZ && \ 2757 !SYS_SUPPORTS_1024HZ 2758 2759config HZ 2760 int 2761 default 24 if HZ_24 2762 default 48 if HZ_48 2763 default 100 if HZ_100 2764 default 128 if HZ_128 2765 default 250 if HZ_250 2766 default 256 if HZ_256 2767 default 1000 if HZ_1000 2768 default 1024 if HZ_1024 2769 2770config SCHED_HRTICK 2771 def_bool HIGH_RES_TIMERS 2772 2773source "kernel/Kconfig.preempt" 2774 2775config KEXEC 2776 bool "Kexec system call" 2777 select KEXEC_CORE 2778 help 2779 kexec is a system call that implements the ability to shutdown your 2780 current kernel, and to start another kernel. It is like a reboot 2781 but it is independent of the system firmware. And like a reboot 2782 you can start any kernel with it, not just Linux. 2783 2784 The name comes from the similarity to the exec system call. 2785 2786 It is an ongoing process to be certain the hardware in a machine 2787 is properly shutdown, so do not be surprised if this code does not 2788 initially work for you. As of this writing the exact hardware 2789 interface is strongly in flux, so no good recommendation can be 2790 made. 2791 2792config CRASH_DUMP 2793 bool "Kernel crash dumps" 2794 help 2795 Generate crash dump after being started by kexec. 2796 This should be normally only set in special crash dump kernels 2797 which are loaded in the main kernel with kexec-tools into 2798 a specially reserved region and then later executed after 2799 a crash by kdump/kexec. The crash dump kernel must be compiled 2800 to a memory address not used by the main kernel or firmware using 2801 PHYSICAL_START. 2802 2803config PHYSICAL_START 2804 hex "Physical address where the kernel is loaded" 2805 default "0xffffffff84000000" if 64BIT 2806 default "0x84000000" if 32BIT 2807 depends on CRASH_DUMP 2808 help 2809 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2810 If you plan to use kernel for capturing the crash dump change 2811 this value to start of the reserved region (the "X" value as 2812 specified in the "crashkernel=YM@XM" command line boot parameter 2813 passed to the panic-ed kernel). 2814 2815config SECCOMP 2816 bool "Enable seccomp to safely compute untrusted bytecode" 2817 depends on PROC_FS 2818 default y 2819 help 2820 This kernel feature is useful for number crunching applications 2821 that may need to compute untrusted bytecode during their 2822 execution. By using pipes or other transports made available to 2823 the process as file descriptors supporting the read/write 2824 syscalls, it's possible to isolate those applications in 2825 their own address space using seccomp. Once seccomp is 2826 enabled via /proc/<pid>/seccomp, it cannot be disabled 2827 and the task is only allowed to execute a few safe syscalls 2828 defined by each seccomp mode. 2829 2830 If unsure, say Y. Only embedded should say N here. 2831 2832config MIPS_O32_FP64_SUPPORT 2833 bool "Support for O32 binaries using 64-bit FP" 2834 depends on 32BIT || MIPS32_O32 2835 help 2836 When this is enabled, the kernel will support use of 64-bit floating 2837 point registers with binaries using the O32 ABI along with the 2838 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 2839 32-bit MIPS systems this support is at the cost of increasing the 2840 size and complexity of the compiled FPU emulator. Thus if you are 2841 running a MIPS32 system and know that none of your userland binaries 2842 will require 64-bit floating point, you may wish to reduce the size 2843 of your kernel & potentially improve FP emulation performance by 2844 saying N here. 2845 2846 Although binutils currently supports use of this flag the details 2847 concerning its effect upon the O32 ABI in userland are still being 2848 worked on. In order to avoid userland becoming dependant upon current 2849 behaviour before the details have been finalised, this option should 2850 be considered experimental and only enabled by those working upon 2851 said details. 2852 2853 If unsure, say N. 2854 2855config USE_OF 2856 bool 2857 select OF 2858 select OF_EARLY_FLATTREE 2859 select IRQ_DOMAIN 2860 2861config BUILTIN_DTB 2862 bool 2863 2864choice 2865 prompt "Kernel appended dtb support" if USE_OF 2866 default MIPS_NO_APPENDED_DTB 2867 2868 config MIPS_NO_APPENDED_DTB 2869 bool "None" 2870 help 2871 Do not enable appended dtb support. 2872 2873 config MIPS_ELF_APPENDED_DTB 2874 bool "vmlinux" 2875 help 2876 With this option, the boot code will look for a device tree binary 2877 DTB) included in the vmlinux ELF section .appended_dtb. By default 2878 it is empty and the DTB can be appended using binutils command 2879 objcopy: 2880 2881 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 2882 2883 This is meant as a backward compatiblity convenience for those 2884 systems with a bootloader that can't be upgraded to accommodate 2885 the documented boot protocol using a device tree. 2886 2887 config MIPS_RAW_APPENDED_DTB 2888 bool "vmlinux.bin" 2889 help 2890 With this option, the boot code will look for a device tree binary 2891 DTB) appended to raw vmlinux.bin (without decompressor). 2892 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 2893 2894 This is meant as a backward compatibility convenience for those 2895 systems with a bootloader that can't be upgraded to accommodate 2896 the documented boot protocol using a device tree. 2897 2898 Beware that there is very little in terms of protection against 2899 this option being confused by leftover garbage in memory that might 2900 look like a DTB header after a reboot if no actual DTB is appended 2901 to vmlinux.bin. Do not leave this option active in a production kernel 2902 if you don't intend to always append a DTB. 2903 2904 config MIPS_ZBOOT_APPENDED_DTB 2905 bool "vmlinuz.bin" 2906 depends on SYS_SUPPORTS_ZBOOT 2907 help 2908 With this option, the boot code will look for a device tree binary 2909 DTB) appended to raw vmlinuz.bin (with decompressor). 2910 (e.g. cat vmlinuz.bin <filename>.dtb > vmlinuz_w_dtb). 2911 2912 This is meant as a backward compatibility convenience for those 2913 systems with a bootloader that can't be upgraded to accommodate 2914 the documented boot protocol using a device tree. 2915 2916 Beware that there is very little in terms of protection against 2917 this option being confused by leftover garbage in memory that might 2918 look like a DTB header after a reboot if no actual DTB is appended 2919 to vmlinuz.bin. Do not leave this option active in a production kernel 2920 if you don't intend to always append a DTB. 2921endchoice 2922 2923choice 2924 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 2925 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 2926 !MIPS_MALTA && !MIPS_SEAD3 && \ 2927 !CAVIUM_OCTEON_SOC 2928 default MIPS_CMDLINE_FROM_BOOTLOADER 2929 2930 config MIPS_CMDLINE_FROM_DTB 2931 depends on USE_OF 2932 bool "Dtb kernel arguments if available" 2933 2934 config MIPS_CMDLINE_DTB_EXTEND 2935 depends on USE_OF 2936 bool "Extend dtb kernel arguments with bootloader arguments" 2937 2938 config MIPS_CMDLINE_FROM_BOOTLOADER 2939 bool "Bootloader kernel arguments if available" 2940 2941 config MIPS_CMDLINE_BUILTIN_EXTEND 2942 depends on CMDLINE_BOOL 2943 bool "Extend builtin kernel arguments with bootloader arguments" 2944endchoice 2945 2946endmenu 2947 2948config LOCKDEP_SUPPORT 2949 bool 2950 default y 2951 2952config STACKTRACE_SUPPORT 2953 bool 2954 default y 2955 2956config HAVE_LATENCYTOP_SUPPORT 2957 bool 2958 default y 2959 2960config PGTABLE_LEVELS 2961 int 2962 default 3 if 64BIT && !PAGE_SIZE_64KB 2963 default 2 2964 2965source "init/Kconfig" 2966 2967source "kernel/Kconfig.freezer" 2968 2969menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 2970 2971config HW_HAS_EISA 2972 bool 2973config HW_HAS_PCI 2974 bool 2975 2976config PCI 2977 bool "Support for PCI controller" 2978 depends on HW_HAS_PCI 2979 select PCI_DOMAINS 2980 select NO_GENERIC_PCI_IOPORT_MAP 2981 help 2982 Find out whether you have a PCI motherboard. PCI is the name of a 2983 bus system, i.e. the way the CPU talks to the other stuff inside 2984 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, 2985 say Y, otherwise N. 2986 2987config HT_PCI 2988 bool "Support for HT-linked PCI" 2989 default y 2990 depends on CPU_LOONGSON3 2991 select PCI 2992 select PCI_DOMAINS 2993 help 2994 Loongson family machines use Hyper-Transport bus for inter-core 2995 connection and device connection. The PCI bus is a subordinate 2996 linked at HT. Choose Y for Loongson-3 based machines. 2997 2998config PCI_DOMAINS 2999 bool 3000 3001source "drivers/pci/Kconfig" 3002 3003# 3004# ISA support is now enabled via select. Too many systems still have the one 3005# or other ISA chip on the board that users don't know about so don't expect 3006# users to choose the right thing ... 3007# 3008config ISA 3009 bool 3010 3011config EISA 3012 bool "EISA support" 3013 depends on HW_HAS_EISA 3014 select ISA 3015 select GENERIC_ISA_DMA 3016 ---help--- 3017 The Extended Industry Standard Architecture (EISA) bus was 3018 developed as an open alternative to the IBM MicroChannel bus. 3019 3020 The EISA bus provided some of the features of the IBM MicroChannel 3021 bus while maintaining backward compatibility with cards made for 3022 the older ISA bus. The EISA bus saw limited use between 1988 and 3023 1995 when it was made obsolete by the PCI bus. 3024 3025 Say Y here if you are building a kernel for an EISA-based machine. 3026 3027 Otherwise, say N. 3028 3029source "drivers/eisa/Kconfig" 3030 3031config TC 3032 bool "TURBOchannel support" 3033 depends on MACH_DECSTATION 3034 help 3035 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3036 processors. TURBOchannel programming specifications are available 3037 at: 3038 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3039 and: 3040 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3041 Linux driver support status is documented at: 3042 <http://www.linux-mips.org/wiki/DECstation> 3043 3044config MMU 3045 bool 3046 default y 3047 3048config I8253 3049 bool 3050 select CLKSRC_I8253 3051 select CLKEVT_I8253 3052 select MIPS_EXTERNAL_TIMER 3053 3054config ZONE_DMA 3055 bool 3056 3057config ZONE_DMA32 3058 bool 3059 3060source "drivers/pcmcia/Kconfig" 3061 3062config RAPIDIO 3063 tristate "RapidIO support" 3064 depends on PCI 3065 default n 3066 help 3067 If you say Y here, the kernel will include drivers and 3068 infrastructure code to support RapidIO interconnect devices. 3069 3070source "drivers/rapidio/Kconfig" 3071 3072endmenu 3073 3074menu "Executable file formats" 3075 3076source "fs/Kconfig.binfmt" 3077 3078config TRAD_SIGNALS 3079 bool 3080 3081config MIPS32_COMPAT 3082 bool 3083 3084config COMPAT 3085 bool 3086 3087config SYSVIPC_COMPAT 3088 bool 3089 3090config MIPS32_O32 3091 bool "Kernel support for o32 binaries" 3092 depends on 64BIT 3093 select ARCH_WANT_OLD_COMPAT_IPC 3094 select COMPAT 3095 select MIPS32_COMPAT 3096 select SYSVIPC_COMPAT if SYSVIPC 3097 help 3098 Select this option if you want to run o32 binaries. These are pure 3099 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3100 existing binaries are in this format. 3101 3102 If unsure, say Y. 3103 3104config MIPS32_N32 3105 bool "Kernel support for n32 binaries" 3106 depends on 64BIT 3107 select COMPAT 3108 select MIPS32_COMPAT 3109 select SYSVIPC_COMPAT if SYSVIPC 3110 help 3111 Select this option if you want to run n32 binaries. These are 3112 64-bit binaries using 32-bit quantities for addressing and certain 3113 data that would normally be 64-bit. They are used in special 3114 cases. 3115 3116 If unsure, say N. 3117 3118config BINFMT_ELF32 3119 bool 3120 default y if MIPS32_O32 || MIPS32_N32 3121 select ELFCORE 3122 3123endmenu 3124 3125menu "Power management options" 3126 3127config ARCH_HIBERNATION_POSSIBLE 3128 def_bool y 3129 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3130 3131config ARCH_SUSPEND_POSSIBLE 3132 def_bool y 3133 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3134 3135source "kernel/power/Kconfig" 3136 3137endmenu 3138 3139config MIPS_EXTERNAL_TIMER 3140 bool 3141 3142menu "CPU Power Management" 3143 3144if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3145source "drivers/cpufreq/Kconfig" 3146endif 3147 3148source "drivers/cpuidle/Kconfig" 3149 3150endmenu 3151 3152source "net/Kconfig" 3153 3154source "drivers/Kconfig" 3155 3156source "drivers/firmware/Kconfig" 3157 3158source "fs/Kconfig" 3159 3160source "arch/mips/Kconfig.debug" 3161 3162source "security/Kconfig" 3163 3164source "crypto/Kconfig" 3165 3166source "lib/Kconfig" 3167 3168source "arch/mips/kvm/Kconfig" 3169