1config MIPS 2 bool 3 default y 4 select ARCH_SUPPORTS_UPROBES 5 select ARCH_MIGHT_HAVE_PC_PARPORT 6 select ARCH_MIGHT_HAVE_PC_SERIO 7 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT 8 select ARCH_USE_BUILTIN_BSWAP 9 select HAVE_CONTEXT_TRACKING 10 select HAVE_GENERIC_DMA_COHERENT 11 select HAVE_IDE 12 select HAVE_OPROFILE 13 select HAVE_PERF_EVENTS 14 select PERF_USE_VMALLOC 15 select HAVE_ARCH_KGDB 16 select HAVE_ARCH_SECCOMP_FILTER 17 select HAVE_ARCH_TRACEHOOK 18 select HAVE_BPF_JIT if !CPU_MICROMIPS 19 select HAVE_FUNCTION_TRACER 20 select HAVE_DYNAMIC_FTRACE 21 select HAVE_FTRACE_MCOUNT_RECORD 22 select HAVE_C_RECORDMCOUNT 23 select HAVE_FUNCTION_GRAPH_TRACER 24 select HAVE_KPROBES 25 select HAVE_KRETPROBES 26 select HAVE_SYSCALL_TRACEPOINTS 27 select HAVE_DEBUG_KMEMLEAK 28 select HAVE_SYSCALL_TRACEPOINTS 29 select ARCH_HAS_ELF_RANDOMIZE 30 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT 31 select RTC_LIB if !MACH_LOONGSON64 32 select GENERIC_ATOMIC64 if !64BIT 33 select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE 34 select HAVE_DMA_CONTIGUOUS 35 select HAVE_DMA_API_DEBUG 36 select GENERIC_IRQ_PROBE 37 select GENERIC_IRQ_SHOW 38 select GENERIC_PCI_IOMAP 39 select HAVE_ARCH_JUMP_LABEL 40 select ARCH_WANT_IPC_PARSE_VERSION 41 select IRQ_FORCED_THREADING 42 select HAVE_MEMBLOCK 43 select HAVE_MEMBLOCK_NODE_MAP 44 select ARCH_DISCARD_MEMBLOCK 45 select GENERIC_SMP_IDLE_THREAD 46 select BUILDTIME_EXTABLE_SORT 47 select GENERIC_CLOCKEVENTS 48 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC 49 select GENERIC_CMOS_UPDATE 50 select HAVE_MOD_ARCH_SPECIFIC 51 select VIRT_TO_BUS 52 select MODULES_USE_ELF_REL if MODULES 53 select MODULES_USE_ELF_RELA if MODULES && 64BIT 54 select CLONE_BACKWARDS 55 select HAVE_DEBUG_STACKOVERFLOW 56 select HAVE_CC_STACKPROTECTOR 57 select CPU_PM if CPU_IDLE 58 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST 59 select ARCH_BINFMT_ELF_STATE 60 select SYSCTL_EXCEPTION_TRACE 61 select HAVE_VIRT_CPU_ACCOUNTING_GEN 62 select HAVE_IRQ_TIME_ACCOUNTING 63 select GENERIC_TIME_VSYSCALL 64 select ARCH_CLOCKSOURCE_DATA 65 select HANDLE_DOMAIN_IRQ 66 67menu "Machine selection" 68 69choice 70 prompt "System type" 71 default SGI_IP22 72 73config MIPS_ALCHEMY 74 bool "Alchemy processor based machines" 75 select ARCH_PHYS_ADDR_T_64BIT 76 select CEVT_R4K 77 select CSRC_R4K 78 select IRQ_MIPS_CPU 79 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is 80 select SYS_HAS_CPU_MIPS32_R1 81 select SYS_SUPPORTS_32BIT_KERNEL 82 select SYS_SUPPORTS_APM_EMULATION 83 select ARCH_REQUIRE_GPIOLIB 84 select SYS_SUPPORTS_ZBOOT 85 select COMMON_CLK 86 87config AR7 88 bool "Texas Instruments AR7" 89 select BOOT_ELF32 90 select DMA_NONCOHERENT 91 select CEVT_R4K 92 select CSRC_R4K 93 select IRQ_MIPS_CPU 94 select NO_EXCEPT_FILL 95 select SWAP_IO_SPACE 96 select SYS_HAS_CPU_MIPS32_R1 97 select SYS_HAS_EARLY_PRINTK 98 select SYS_SUPPORTS_32BIT_KERNEL 99 select SYS_SUPPORTS_LITTLE_ENDIAN 100 select SYS_SUPPORTS_MIPS16 101 select SYS_SUPPORTS_ZBOOT_UART16550 102 select ARCH_REQUIRE_GPIOLIB 103 select VLYNQ 104 select HAVE_CLK 105 help 106 Support for the Texas Instruments AR7 System-on-a-Chip 107 family: TNETD7100, 7200 and 7300. 108 109config ATH25 110 bool "Atheros AR231x/AR531x SoC support" 111 select CEVT_R4K 112 select CSRC_R4K 113 select DMA_NONCOHERENT 114 select IRQ_MIPS_CPU 115 select IRQ_DOMAIN 116 select SYS_HAS_CPU_MIPS32_R1 117 select SYS_SUPPORTS_BIG_ENDIAN 118 select SYS_SUPPORTS_32BIT_KERNEL 119 select SYS_HAS_EARLY_PRINTK 120 help 121 Support for Atheros AR231x and Atheros AR531x based boards 122 123config ATH79 124 bool "Atheros AR71XX/AR724X/AR913X based boards" 125 select ARCH_HAS_RESET_CONTROLLER 126 select ARCH_REQUIRE_GPIOLIB 127 select BOOT_RAW 128 select CEVT_R4K 129 select CSRC_R4K 130 select DMA_NONCOHERENT 131 select HAVE_CLK 132 select COMMON_CLK 133 select CLKDEV_LOOKUP 134 select IRQ_MIPS_CPU 135 select MIPS_MACHINE 136 select SYS_HAS_CPU_MIPS32_R2 137 select SYS_HAS_EARLY_PRINTK 138 select SYS_SUPPORTS_32BIT_KERNEL 139 select SYS_SUPPORTS_BIG_ENDIAN 140 select SYS_SUPPORTS_MIPS16 141 select SYS_SUPPORTS_ZBOOT_UART_PROM 142 select USE_OF 143 help 144 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 145 146config BMIPS_GENERIC 147 bool "Broadcom Generic BMIPS kernel" 148 select BOOT_RAW 149 select NO_EXCEPT_FILL 150 select USE_OF 151 select CEVT_R4K 152 select CSRC_R4K 153 select SYNC_R4K 154 select COMMON_CLK 155 select BCM6345_L1_IRQ 156 select BCM7038_L1_IRQ 157 select BCM7120_L2_IRQ 158 select BRCMSTB_L2_IRQ 159 select IRQ_MIPS_CPU 160 select DMA_NONCOHERENT 161 select SYS_SUPPORTS_32BIT_KERNEL 162 select SYS_SUPPORTS_LITTLE_ENDIAN 163 select SYS_SUPPORTS_BIG_ENDIAN 164 select SYS_SUPPORTS_HIGHMEM 165 select SYS_HAS_CPU_BMIPS32_3300 166 select SYS_HAS_CPU_BMIPS4350 167 select SYS_HAS_CPU_BMIPS4380 168 select SYS_HAS_CPU_BMIPS5000 169 select SWAP_IO_SPACE 170 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 171 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 172 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 173 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 174 select ARCH_WANT_OPTIONAL_GPIOLIB 175 help 176 Build a generic DT-based kernel image that boots on select 177 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top 178 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN 179 must be set appropriately for your board. 180 181config BCM47XX 182 bool "Broadcom BCM47XX based boards" 183 select ARCH_WANT_OPTIONAL_GPIOLIB 184 select BOOT_RAW 185 select CEVT_R4K 186 select CSRC_R4K 187 select DMA_NONCOHERENT 188 select HW_HAS_PCI 189 select IRQ_MIPS_CPU 190 select SYS_HAS_CPU_MIPS32_R1 191 select NO_EXCEPT_FILL 192 select SYS_SUPPORTS_32BIT_KERNEL 193 select SYS_SUPPORTS_LITTLE_ENDIAN 194 select SYS_SUPPORTS_MIPS16 195 select SYS_HAS_EARLY_PRINTK 196 select USE_GENERIC_EARLY_PRINTK_8250 197 select GPIOLIB 198 select LEDS_GPIO_REGISTER 199 select BCM47XX_NVRAM 200 select BCM47XX_SPROM 201 help 202 Support for BCM47XX based boards 203 204config BCM63XX 205 bool "Broadcom BCM63XX based boards" 206 select BOOT_RAW 207 select CEVT_R4K 208 select CSRC_R4K 209 select SYNC_R4K 210 select DMA_NONCOHERENT 211 select IRQ_MIPS_CPU 212 select SYS_SUPPORTS_32BIT_KERNEL 213 select SYS_SUPPORTS_BIG_ENDIAN 214 select SYS_HAS_EARLY_PRINTK 215 select SWAP_IO_SPACE 216 select ARCH_REQUIRE_GPIOLIB 217 select HAVE_CLK 218 select MIPS_L1_CACHE_SHIFT_4 219 help 220 Support for BCM63XX based boards 221 222config MIPS_COBALT 223 bool "Cobalt Server" 224 select CEVT_R4K 225 select CSRC_R4K 226 select CEVT_GT641XX 227 select DMA_NONCOHERENT 228 select HW_HAS_PCI 229 select I8253 230 select I8259 231 select IRQ_MIPS_CPU 232 select IRQ_GT641XX 233 select PCI_GT64XXX_PCI0 234 select PCI 235 select SYS_HAS_CPU_NEVADA 236 select SYS_HAS_EARLY_PRINTK 237 select SYS_SUPPORTS_32BIT_KERNEL 238 select SYS_SUPPORTS_64BIT_KERNEL 239 select SYS_SUPPORTS_LITTLE_ENDIAN 240 select USE_GENERIC_EARLY_PRINTK_8250 241 242config MACH_DECSTATION 243 bool "DECstations" 244 select BOOT_ELF32 245 select CEVT_DS1287 246 select CEVT_R4K if CPU_R4X00 247 select CSRC_IOASIC 248 select CSRC_R4K if CPU_R4X00 249 select CPU_DADDI_WORKAROUNDS if 64BIT 250 select CPU_R4000_WORKAROUNDS if 64BIT 251 select CPU_R4400_WORKAROUNDS if 64BIT 252 select DMA_NONCOHERENT 253 select NO_IOPORT_MAP 254 select IRQ_MIPS_CPU 255 select SYS_HAS_CPU_R3000 256 select SYS_HAS_CPU_R4X00 257 select SYS_SUPPORTS_32BIT_KERNEL 258 select SYS_SUPPORTS_64BIT_KERNEL 259 select SYS_SUPPORTS_LITTLE_ENDIAN 260 select SYS_SUPPORTS_128HZ 261 select SYS_SUPPORTS_256HZ 262 select SYS_SUPPORTS_1024HZ 263 select MIPS_L1_CACHE_SHIFT_4 264 help 265 This enables support for DEC's MIPS based workstations. For details 266 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 267 DECstation porting pages on <http://decstation.unix-ag.org/>. 268 269 If you have one of the following DECstation Models you definitely 270 want to choose R4xx0 for the CPU Type: 271 272 DECstation 5000/50 273 DECstation 5000/150 274 DECstation 5000/260 275 DECsystem 5900/260 276 277 otherwise choose R3000. 278 279config MACH_JAZZ 280 bool "Jazz family of machines" 281 select FW_ARC 282 select FW_ARC32 283 select ARCH_MAY_HAVE_PC_FDC 284 select CEVT_R4K 285 select CSRC_R4K 286 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 287 select GENERIC_ISA_DMA 288 select HAVE_PCSPKR_PLATFORM 289 select IRQ_MIPS_CPU 290 select I8253 291 select I8259 292 select ISA 293 select SYS_HAS_CPU_R4X00 294 select SYS_SUPPORTS_32BIT_KERNEL 295 select SYS_SUPPORTS_64BIT_KERNEL 296 select SYS_SUPPORTS_100HZ 297 help 298 This a family of machines based on the MIPS R4030 chipset which was 299 used by several vendors to build RISC/os and Windows NT workstations. 300 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 301 Olivetti M700-10 workstations. 302 303config MACH_INGENIC 304 bool "Ingenic SoC based machines" 305 select SYS_SUPPORTS_32BIT_KERNEL 306 select SYS_SUPPORTS_LITTLE_ENDIAN 307 select SYS_SUPPORTS_ZBOOT_UART16550 308 select DMA_NONCOHERENT 309 select IRQ_MIPS_CPU 310 select ARCH_REQUIRE_GPIOLIB 311 select COMMON_CLK 312 select GENERIC_IRQ_CHIP 313 select BUILTIN_DTB 314 select USE_OF 315 select LIBFDT 316 317config LANTIQ 318 bool "Lantiq based platforms" 319 select DMA_NONCOHERENT 320 select IRQ_MIPS_CPU 321 select CEVT_R4K 322 select CSRC_R4K 323 select SYS_HAS_CPU_MIPS32_R1 324 select SYS_HAS_CPU_MIPS32_R2 325 select SYS_SUPPORTS_BIG_ENDIAN 326 select SYS_SUPPORTS_32BIT_KERNEL 327 select SYS_SUPPORTS_MIPS16 328 select SYS_SUPPORTS_MULTITHREADING 329 select SYS_HAS_EARLY_PRINTK 330 select ARCH_REQUIRE_GPIOLIB 331 select SWAP_IO_SPACE 332 select BOOT_RAW 333 select CLKDEV_LOOKUP 334 select USE_OF 335 select PINCTRL 336 select PINCTRL_LANTIQ 337 select ARCH_HAS_RESET_CONTROLLER 338 select RESET_CONTROLLER 339 340config LASAT 341 bool "LASAT Networks platforms" 342 select CEVT_R4K 343 select CRC32 344 select CSRC_R4K 345 select DMA_NONCOHERENT 346 select SYS_HAS_EARLY_PRINTK 347 select HW_HAS_PCI 348 select IRQ_MIPS_CPU 349 select PCI_GT64XXX_PCI0 350 select MIPS_NILE4 351 select R5000_CPU_SCACHE 352 select SYS_HAS_CPU_R5000 353 select SYS_SUPPORTS_32BIT_KERNEL 354 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 355 select SYS_SUPPORTS_LITTLE_ENDIAN 356 357config MACH_LOONGSON32 358 bool "Loongson-1 family of machines" 359 select SYS_SUPPORTS_ZBOOT 360 help 361 This enables support for the Loongson-1 family of machines. 362 363 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by 364 the Institute of Computing Technology (ICT), Chinese Academy of 365 Sciences (CAS). 366 367config MACH_LOONGSON64 368 bool "Loongson-2/3 family of machines" 369 select SYS_SUPPORTS_ZBOOT 370 help 371 This enables the support of Loongson-2/3 family of machines. 372 373 Loongson-2 is a family of single-core CPUs and Loongson-3 is a 374 family of multi-core CPUs. They are both 64-bit general-purpose 375 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute 376 of Computing Technology (ICT), Chinese Academy of Sciences (CAS) 377 in the People's Republic of China. The chief architect is Professor 378 Weiwu Hu. 379 380config MACH_PISTACHIO 381 bool "IMG Pistachio SoC based boards" 382 select ARCH_REQUIRE_GPIOLIB 383 select BOOT_ELF32 384 select BOOT_RAW 385 select CEVT_R4K 386 select CLKSRC_MIPS_GIC 387 select COMMON_CLK 388 select CSRC_R4K 389 select DMA_MAYBE_COHERENT 390 select IRQ_MIPS_CPU 391 select LIBFDT 392 select MFD_SYSCON 393 select MIPS_CPU_SCACHE 394 select MIPS_GIC 395 select PINCTRL 396 select REGULATOR 397 select SYS_HAS_CPU_MIPS32_R2 398 select SYS_SUPPORTS_32BIT_KERNEL 399 select SYS_SUPPORTS_LITTLE_ENDIAN 400 select SYS_SUPPORTS_MIPS_CPS 401 select SYS_SUPPORTS_MULTITHREADING 402 select SYS_SUPPORTS_ZBOOT 403 select SYS_HAS_EARLY_PRINTK 404 select USE_GENERIC_EARLY_PRINTK_8250 405 select USE_OF 406 help 407 This enables support for the IMG Pistachio SoC platform. 408 409config MACH_XILFPGA 410 bool "MIPSfpga Xilinx based boards" 411 select ARCH_REQUIRE_GPIOLIB 412 select BOOT_ELF32 413 select BOOT_RAW 414 select BUILTIN_DTB 415 select CEVT_R4K 416 select COMMON_CLK 417 select CSRC_R4K 418 select IRQ_MIPS_CPU 419 select LIBFDT 420 select MIPS_CPU_SCACHE 421 select SYS_HAS_EARLY_PRINTK 422 select SYS_HAS_CPU_MIPS32_R2 423 select SYS_SUPPORTS_32BIT_KERNEL 424 select SYS_SUPPORTS_LITTLE_ENDIAN 425 select SYS_SUPPORTS_ZBOOT_UART16550 426 select USE_OF 427 select USE_GENERIC_EARLY_PRINTK_8250 428 help 429 This enables support for the IMG University Program MIPSfpga platform. 430 431config MIPS_MALTA 432 bool "MIPS Malta board" 433 select ARCH_MAY_HAVE_PC_FDC 434 select BOOT_ELF32 435 select BOOT_RAW 436 select BUILTIN_DTB 437 select CEVT_R4K 438 select CSRC_R4K 439 select CLKSRC_MIPS_GIC 440 select COMMON_CLK 441 select DMA_MAYBE_COHERENT 442 select GENERIC_ISA_DMA 443 select HAVE_PCSPKR_PLATFORM 444 select IRQ_MIPS_CPU 445 select MIPS_GIC 446 select HW_HAS_PCI 447 select I8253 448 select I8259 449 select MIPS_BONITO64 450 select MIPS_CPU_SCACHE 451 select MIPS_L1_CACHE_SHIFT_6 452 select PCI_GT64XXX_PCI0 453 select MIPS_MSC 454 select SMP_UP if SMP 455 select SWAP_IO_SPACE 456 select SYS_HAS_CPU_MIPS32_R1 457 select SYS_HAS_CPU_MIPS32_R2 458 select SYS_HAS_CPU_MIPS32_R3_5 459 select SYS_HAS_CPU_MIPS32_R5 460 select SYS_HAS_CPU_MIPS32_R6 461 select SYS_HAS_CPU_MIPS64_R1 462 select SYS_HAS_CPU_MIPS64_R2 463 select SYS_HAS_CPU_MIPS64_R6 464 select SYS_HAS_CPU_NEVADA 465 select SYS_HAS_CPU_RM7000 466 select SYS_SUPPORTS_32BIT_KERNEL 467 select SYS_SUPPORTS_64BIT_KERNEL 468 select SYS_SUPPORTS_BIG_ENDIAN 469 select SYS_SUPPORTS_HIGHMEM 470 select SYS_SUPPORTS_LITTLE_ENDIAN 471 select SYS_SUPPORTS_MICROMIPS 472 select SYS_SUPPORTS_MIPS_CMP 473 select SYS_SUPPORTS_MIPS_CPS 474 select SYS_SUPPORTS_MIPS16 475 select SYS_SUPPORTS_MULTITHREADING 476 select SYS_SUPPORTS_SMARTMIPS 477 select SYS_SUPPORTS_ZBOOT 478 select 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 ARCH_REQUIRE_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 ARCH_REQUIRE_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 ARCH_REQUIRE_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 ARCH_REQUIRE_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 ARCH_REQUIRE_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 ARCH_REQUIRE_GPIOLIB 1358 help 1359 The Loongson 3 processor implements the MIPS64R2 instruction 1360 set with many extensions. 1361 1362config CPU_LOONGSON2E 1363 bool "Loongson 2E" 1364 depends on SYS_HAS_CPU_LOONGSON2E 1365 select CPU_LOONGSON2 1366 help 1367 The Loongson 2E processor implements the MIPS III instruction set 1368 with many extensions. 1369 1370 It has an internal FPGA northbridge, which is compatible to 1371 bonito64. 1372 1373config CPU_LOONGSON2F 1374 bool "Loongson 2F" 1375 depends on SYS_HAS_CPU_LOONGSON2F 1376 select CPU_LOONGSON2 1377 select ARCH_REQUIRE_GPIOLIB 1378 help 1379 The Loongson 2F processor implements the MIPS III instruction set 1380 with many extensions. 1381 1382 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1383 have a similar programming interface with FPGA northbridge used in 1384 Loongson2E. 1385 1386config CPU_LOONGSON1B 1387 bool "Loongson 1B" 1388 depends on SYS_HAS_CPU_LOONGSON1B 1389 select CPU_LOONGSON1 1390 select ARCH_WANT_OPTIONAL_GPIOLIB 1391 select LEDS_GPIO_REGISTER 1392 help 1393 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1394 release 2 instruction set. 1395 1396config CPU_MIPS32_R1 1397 bool "MIPS32 Release 1" 1398 depends on SYS_HAS_CPU_MIPS32_R1 1399 select CPU_HAS_PREFETCH 1400 select CPU_SUPPORTS_32BIT_KERNEL 1401 select CPU_SUPPORTS_HIGHMEM 1402 help 1403 Choose this option to build a kernel for release 1 or later of the 1404 MIPS32 architecture. Most modern embedded systems with a 32-bit 1405 MIPS processor are based on a MIPS32 processor. If you know the 1406 specific type of processor in your system, choose those that one 1407 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1408 Release 2 of the MIPS32 architecture is available since several 1409 years so chances are you even have a MIPS32 Release 2 processor 1410 in which case you should choose CPU_MIPS32_R2 instead for better 1411 performance. 1412 1413config CPU_MIPS32_R2 1414 bool "MIPS32 Release 2" 1415 depends on SYS_HAS_CPU_MIPS32_R2 1416 select CPU_HAS_PREFETCH 1417 select CPU_SUPPORTS_32BIT_KERNEL 1418 select CPU_SUPPORTS_HIGHMEM 1419 select CPU_SUPPORTS_MSA 1420 select HAVE_KVM 1421 help 1422 Choose this option to build a kernel for release 2 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 1428config CPU_MIPS32_R6 1429 bool "MIPS32 Release 6" 1430 depends on SYS_HAS_CPU_MIPS32_R6 1431 select CPU_HAS_PREFETCH 1432 select CPU_SUPPORTS_32BIT_KERNEL 1433 select CPU_SUPPORTS_HIGHMEM 1434 select CPU_SUPPORTS_MSA 1435 select GENERIC_CSUM 1436 select HAVE_KVM 1437 select MIPS_O32_FP64_SUPPORT 1438 help 1439 Choose this option to build a kernel for release 6 or later of the 1440 MIPS32 architecture. New MIPS processors, starting with the Warrior 1441 family, are based on a MIPS32r6 processor. If you own an older 1442 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1443 1444config CPU_MIPS64_R1 1445 bool "MIPS64 Release 1" 1446 depends on SYS_HAS_CPU_MIPS64_R1 1447 select CPU_HAS_PREFETCH 1448 select CPU_SUPPORTS_32BIT_KERNEL 1449 select CPU_SUPPORTS_64BIT_KERNEL 1450 select CPU_SUPPORTS_HIGHMEM 1451 select CPU_SUPPORTS_HUGEPAGES 1452 help 1453 Choose this option to build a kernel for release 1 or later of the 1454 MIPS64 architecture. Many modern embedded systems with a 64-bit 1455 MIPS processor are based on a MIPS64 processor. If you know the 1456 specific type of processor in your system, choose those that one 1457 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1458 Release 2 of the MIPS64 architecture is available since several 1459 years so chances are you even have a MIPS64 Release 2 processor 1460 in which case you should choose CPU_MIPS64_R2 instead for better 1461 performance. 1462 1463config CPU_MIPS64_R2 1464 bool "MIPS64 Release 2" 1465 depends on SYS_HAS_CPU_MIPS64_R2 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 select CPU_SUPPORTS_MSA 1472 help 1473 Choose this option to build a kernel for release 2 or later of the 1474 MIPS64 architecture. Many modern embedded systems with a 64-bit 1475 MIPS processor are based on a MIPS64 processor. If you know the 1476 specific type of processor in your system, choose those that one 1477 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1478 1479config CPU_MIPS64_R6 1480 bool "MIPS64 Release 6" 1481 depends on SYS_HAS_CPU_MIPS64_R6 1482 select CPU_HAS_PREFETCH 1483 select CPU_SUPPORTS_32BIT_KERNEL 1484 select CPU_SUPPORTS_64BIT_KERNEL 1485 select CPU_SUPPORTS_HIGHMEM 1486 select CPU_SUPPORTS_MSA 1487 select GENERIC_CSUM 1488 select MIPS_O32_FP64_SUPPORT if MIPS32_O32 1489 help 1490 Choose this option to build a kernel for release 6 or later of the 1491 MIPS64 architecture. New MIPS processors, starting with the Warrior 1492 family, are based on a MIPS64r6 processor. If you own an older 1493 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1494 1495config CPU_R3000 1496 bool "R3000" 1497 depends on SYS_HAS_CPU_R3000 1498 select CPU_HAS_WB 1499 select CPU_SUPPORTS_32BIT_KERNEL 1500 select CPU_SUPPORTS_HIGHMEM 1501 help 1502 Please make sure to pick the right CPU type. Linux/MIPS is not 1503 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1504 *not* work on R4000 machines and vice versa. However, since most 1505 of the supported machines have an R4000 (or similar) CPU, R4x00 1506 might be a safe bet. If the resulting kernel does not work, 1507 try to recompile with R3000. 1508 1509config CPU_TX39XX 1510 bool "R39XX" 1511 depends on SYS_HAS_CPU_TX39XX 1512 select CPU_SUPPORTS_32BIT_KERNEL 1513 1514config CPU_VR41XX 1515 bool "R41xx" 1516 depends on SYS_HAS_CPU_VR41XX 1517 select CPU_SUPPORTS_32BIT_KERNEL 1518 select CPU_SUPPORTS_64BIT_KERNEL 1519 help 1520 The options selects support for the NEC VR4100 series of processors. 1521 Only choose this option if you have one of these processors as a 1522 kernel built with this option will not run on any other type of 1523 processor or vice versa. 1524 1525config CPU_R4300 1526 bool "R4300" 1527 depends on SYS_HAS_CPU_R4300 1528 select CPU_SUPPORTS_32BIT_KERNEL 1529 select CPU_SUPPORTS_64BIT_KERNEL 1530 help 1531 MIPS Technologies R4300-series processors. 1532 1533config CPU_R4X00 1534 bool "R4x00" 1535 depends on SYS_HAS_CPU_R4X00 1536 select CPU_SUPPORTS_32BIT_KERNEL 1537 select CPU_SUPPORTS_64BIT_KERNEL 1538 select CPU_SUPPORTS_HUGEPAGES 1539 help 1540 MIPS Technologies R4000-series processors other than 4300, including 1541 the R4000, R4400, R4600, and 4700. 1542 1543config CPU_TX49XX 1544 bool "R49XX" 1545 depends on SYS_HAS_CPU_TX49XX 1546 select CPU_HAS_PREFETCH 1547 select CPU_SUPPORTS_32BIT_KERNEL 1548 select CPU_SUPPORTS_64BIT_KERNEL 1549 select CPU_SUPPORTS_HUGEPAGES 1550 1551config CPU_R5000 1552 bool "R5000" 1553 depends on SYS_HAS_CPU_R5000 1554 select CPU_SUPPORTS_32BIT_KERNEL 1555 select CPU_SUPPORTS_64BIT_KERNEL 1556 select CPU_SUPPORTS_HUGEPAGES 1557 help 1558 MIPS Technologies R5000-series processors other than the Nevada. 1559 1560config CPU_R5432 1561 bool "R5432" 1562 depends on SYS_HAS_CPU_R5432 1563 select CPU_SUPPORTS_32BIT_KERNEL 1564 select CPU_SUPPORTS_64BIT_KERNEL 1565 select CPU_SUPPORTS_HUGEPAGES 1566 1567config CPU_R5500 1568 bool "R5500" 1569 depends on SYS_HAS_CPU_R5500 1570 select CPU_SUPPORTS_32BIT_KERNEL 1571 select CPU_SUPPORTS_64BIT_KERNEL 1572 select CPU_SUPPORTS_HUGEPAGES 1573 help 1574 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1575 instruction set. 1576 1577config CPU_R6000 1578 bool "R6000" 1579 depends on SYS_HAS_CPU_R6000 1580 select CPU_SUPPORTS_32BIT_KERNEL 1581 help 1582 MIPS Technologies R6000 and R6000A series processors. Note these 1583 processors are extremely rare and the support for them is incomplete. 1584 1585config CPU_NEVADA 1586 bool "RM52xx" 1587 depends on SYS_HAS_CPU_NEVADA 1588 select CPU_SUPPORTS_32BIT_KERNEL 1589 select CPU_SUPPORTS_64BIT_KERNEL 1590 select CPU_SUPPORTS_HUGEPAGES 1591 help 1592 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1593 1594config CPU_R8000 1595 bool "R8000" 1596 depends on SYS_HAS_CPU_R8000 1597 select CPU_HAS_PREFETCH 1598 select CPU_SUPPORTS_64BIT_KERNEL 1599 help 1600 MIPS Technologies R8000 processors. Note these processors are 1601 uncommon and the support for them is incomplete. 1602 1603config CPU_R10000 1604 bool "R10000" 1605 depends on SYS_HAS_CPU_R10000 1606 select CPU_HAS_PREFETCH 1607 select CPU_SUPPORTS_32BIT_KERNEL 1608 select CPU_SUPPORTS_64BIT_KERNEL 1609 select CPU_SUPPORTS_HIGHMEM 1610 select CPU_SUPPORTS_HUGEPAGES 1611 help 1612 MIPS Technologies R10000-series processors. 1613 1614config CPU_RM7000 1615 bool "RM7000" 1616 depends on SYS_HAS_CPU_RM7000 1617 select CPU_HAS_PREFETCH 1618 select CPU_SUPPORTS_32BIT_KERNEL 1619 select CPU_SUPPORTS_64BIT_KERNEL 1620 select CPU_SUPPORTS_HIGHMEM 1621 select CPU_SUPPORTS_HUGEPAGES 1622 1623config CPU_SB1 1624 bool "SB1" 1625 depends on SYS_HAS_CPU_SB1 1626 select CPU_SUPPORTS_32BIT_KERNEL 1627 select CPU_SUPPORTS_64BIT_KERNEL 1628 select CPU_SUPPORTS_HIGHMEM 1629 select CPU_SUPPORTS_HUGEPAGES 1630 select WEAK_ORDERING 1631 1632config CPU_CAVIUM_OCTEON 1633 bool "Cavium Octeon processor" 1634 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1635 select CPU_HAS_PREFETCH 1636 select CPU_SUPPORTS_64BIT_KERNEL 1637 select WEAK_ORDERING 1638 select CPU_SUPPORTS_HIGHMEM 1639 select CPU_SUPPORTS_HUGEPAGES 1640 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1641 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1642 select MIPS_L1_CACHE_SHIFT_7 1643 help 1644 The Cavium Octeon processor is a highly integrated chip containing 1645 many ethernet hardware widgets for networking tasks. The processor 1646 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1647 Full details can be found at http://www.caviumnetworks.com. 1648 1649config CPU_BMIPS 1650 bool "Broadcom BMIPS" 1651 depends on SYS_HAS_CPU_BMIPS 1652 select CPU_MIPS32 1653 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1654 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1655 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1656 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1657 select CPU_SUPPORTS_32BIT_KERNEL 1658 select DMA_NONCOHERENT 1659 select IRQ_MIPS_CPU 1660 select SWAP_IO_SPACE 1661 select WEAK_ORDERING 1662 select CPU_SUPPORTS_HIGHMEM 1663 select CPU_HAS_PREFETCH 1664 help 1665 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1666 1667config CPU_XLR 1668 bool "Netlogic XLR SoC" 1669 depends on SYS_HAS_CPU_XLR 1670 select CPU_SUPPORTS_32BIT_KERNEL 1671 select CPU_SUPPORTS_64BIT_KERNEL 1672 select CPU_SUPPORTS_HIGHMEM 1673 select CPU_SUPPORTS_HUGEPAGES 1674 select WEAK_ORDERING 1675 select WEAK_REORDERING_BEYOND_LLSC 1676 help 1677 Netlogic Microsystems XLR/XLS processors. 1678 1679config CPU_XLP 1680 bool "Netlogic XLP SoC" 1681 depends on SYS_HAS_CPU_XLP 1682 select CPU_SUPPORTS_32BIT_KERNEL 1683 select CPU_SUPPORTS_64BIT_KERNEL 1684 select CPU_SUPPORTS_HIGHMEM 1685 select WEAK_ORDERING 1686 select WEAK_REORDERING_BEYOND_LLSC 1687 select CPU_HAS_PREFETCH 1688 select CPU_MIPSR2 1689 select CPU_SUPPORTS_HUGEPAGES 1690 help 1691 Netlogic Microsystems XLP processors. 1692endchoice 1693 1694config CPU_MIPS32_3_5_FEATURES 1695 bool "MIPS32 Release 3.5 Features" 1696 depends on SYS_HAS_CPU_MIPS32_R3_5 1697 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6 1698 help 1699 Choose this option to build a kernel for release 2 or later of the 1700 MIPS32 architecture including features from the 3.5 release such as 1701 support for Enhanced Virtual Addressing (EVA). 1702 1703config CPU_MIPS32_3_5_EVA 1704 bool "Enhanced Virtual Addressing (EVA)" 1705 depends on CPU_MIPS32_3_5_FEATURES 1706 select EVA 1707 default y 1708 help 1709 Choose this option if you want to enable the Enhanced Virtual 1710 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1711 One of its primary benefits is an increase in the maximum size 1712 of lowmem (up to 3GB). If unsure, say 'N' here. 1713 1714config CPU_MIPS32_R5_FEATURES 1715 bool "MIPS32 Release 5 Features" 1716 depends on SYS_HAS_CPU_MIPS32_R5 1717 depends on CPU_MIPS32_R2 1718 help 1719 Choose this option to build a kernel for release 2 or later of the 1720 MIPS32 architecture including features from release 5 such as 1721 support for Extended Physical Addressing (XPA). 1722 1723config CPU_MIPS32_R5_XPA 1724 bool "Extended Physical Addressing (XPA)" 1725 depends on CPU_MIPS32_R5_FEATURES 1726 depends on !EVA 1727 depends on !PAGE_SIZE_4KB 1728 depends on SYS_SUPPORTS_HIGHMEM 1729 select XPA 1730 select HIGHMEM 1731 select ARCH_PHYS_ADDR_T_64BIT 1732 default n 1733 help 1734 Choose this option if you want to enable the Extended Physical 1735 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1736 benefit is to increase physical addressing equal to or greater 1737 than 40 bits. Note that this has the side effect of turning on 1738 64-bit addressing which in turn makes the PTEs 64-bit in size. 1739 If unsure, say 'N' here. 1740 1741if CPU_LOONGSON2F 1742config CPU_NOP_WORKAROUNDS 1743 bool 1744 1745config CPU_JUMP_WORKAROUNDS 1746 bool 1747 1748config CPU_LOONGSON2F_WORKAROUNDS 1749 bool "Loongson 2F Workarounds" 1750 default y 1751 select CPU_NOP_WORKAROUNDS 1752 select CPU_JUMP_WORKAROUNDS 1753 help 1754 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1755 require workarounds. Without workarounds the system may hang 1756 unexpectedly. For more information please refer to the gas 1757 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1758 1759 Loongson 2F03 and later have fixed these issues and no workarounds 1760 are needed. The workarounds have no significant side effect on them 1761 but may decrease the performance of the system so this option should 1762 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1763 systems. 1764 1765 If unsure, please say Y. 1766endif # CPU_LOONGSON2F 1767 1768config SYS_SUPPORTS_ZBOOT 1769 bool 1770 select HAVE_KERNEL_GZIP 1771 select HAVE_KERNEL_BZIP2 1772 select HAVE_KERNEL_LZ4 1773 select HAVE_KERNEL_LZMA 1774 select HAVE_KERNEL_LZO 1775 select HAVE_KERNEL_XZ 1776 1777config SYS_SUPPORTS_ZBOOT_UART16550 1778 bool 1779 select SYS_SUPPORTS_ZBOOT 1780 1781config SYS_SUPPORTS_ZBOOT_UART_PROM 1782 bool 1783 select SYS_SUPPORTS_ZBOOT 1784 1785config CPU_LOONGSON2 1786 bool 1787 select CPU_SUPPORTS_32BIT_KERNEL 1788 select CPU_SUPPORTS_64BIT_KERNEL 1789 select CPU_SUPPORTS_HIGHMEM 1790 select CPU_SUPPORTS_HUGEPAGES 1791 1792config CPU_LOONGSON1 1793 bool 1794 select CPU_MIPS32 1795 select CPU_MIPSR2 1796 select CPU_HAS_PREFETCH 1797 select CPU_SUPPORTS_32BIT_KERNEL 1798 select CPU_SUPPORTS_HIGHMEM 1799 select CPU_SUPPORTS_CPUFREQ 1800 1801config CPU_BMIPS32_3300 1802 select SMP_UP if SMP 1803 bool 1804 1805config CPU_BMIPS4350 1806 bool 1807 select SYS_SUPPORTS_SMP 1808 select SYS_SUPPORTS_HOTPLUG_CPU 1809 1810config CPU_BMIPS4380 1811 bool 1812 select MIPS_L1_CACHE_SHIFT_6 1813 select SYS_SUPPORTS_SMP 1814 select SYS_SUPPORTS_HOTPLUG_CPU 1815 1816config CPU_BMIPS5000 1817 bool 1818 select MIPS_CPU_SCACHE 1819 select MIPS_L1_CACHE_SHIFT_7 1820 select SYS_SUPPORTS_SMP 1821 select SYS_SUPPORTS_HOTPLUG_CPU 1822 1823config SYS_HAS_CPU_LOONGSON3 1824 bool 1825 select CPU_SUPPORTS_CPUFREQ 1826 1827config SYS_HAS_CPU_LOONGSON2E 1828 bool 1829 1830config SYS_HAS_CPU_LOONGSON2F 1831 bool 1832 select CPU_SUPPORTS_CPUFREQ 1833 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1834 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1835 1836config SYS_HAS_CPU_LOONGSON1B 1837 bool 1838 1839config SYS_HAS_CPU_MIPS32_R1 1840 bool 1841 1842config SYS_HAS_CPU_MIPS32_R2 1843 bool 1844 1845config SYS_HAS_CPU_MIPS32_R3_5 1846 bool 1847 1848config SYS_HAS_CPU_MIPS32_R5 1849 bool 1850 1851config SYS_HAS_CPU_MIPS32_R6 1852 bool 1853 1854config SYS_HAS_CPU_MIPS64_R1 1855 bool 1856 1857config SYS_HAS_CPU_MIPS64_R2 1858 bool 1859 1860config SYS_HAS_CPU_MIPS64_R6 1861 bool 1862 1863config SYS_HAS_CPU_R3000 1864 bool 1865 1866config SYS_HAS_CPU_TX39XX 1867 bool 1868 1869config SYS_HAS_CPU_VR41XX 1870 bool 1871 1872config SYS_HAS_CPU_R4300 1873 bool 1874 1875config SYS_HAS_CPU_R4X00 1876 bool 1877 1878config SYS_HAS_CPU_TX49XX 1879 bool 1880 1881config SYS_HAS_CPU_R5000 1882 bool 1883 1884config SYS_HAS_CPU_R5432 1885 bool 1886 1887config SYS_HAS_CPU_R5500 1888 bool 1889 1890config SYS_HAS_CPU_R6000 1891 bool 1892 1893config SYS_HAS_CPU_NEVADA 1894 bool 1895 1896config SYS_HAS_CPU_R8000 1897 bool 1898 1899config SYS_HAS_CPU_R10000 1900 bool 1901 1902config SYS_HAS_CPU_RM7000 1903 bool 1904 1905config SYS_HAS_CPU_SB1 1906 bool 1907 1908config SYS_HAS_CPU_CAVIUM_OCTEON 1909 bool 1910 1911config SYS_HAS_CPU_BMIPS 1912 bool 1913 1914config SYS_HAS_CPU_BMIPS32_3300 1915 bool 1916 select SYS_HAS_CPU_BMIPS 1917 1918config SYS_HAS_CPU_BMIPS4350 1919 bool 1920 select SYS_HAS_CPU_BMIPS 1921 1922config SYS_HAS_CPU_BMIPS4380 1923 bool 1924 select SYS_HAS_CPU_BMIPS 1925 1926config SYS_HAS_CPU_BMIPS5000 1927 bool 1928 select SYS_HAS_CPU_BMIPS 1929 1930config SYS_HAS_CPU_XLR 1931 bool 1932 1933config SYS_HAS_CPU_XLP 1934 bool 1935 1936config MIPS_MALTA_PM 1937 depends on MIPS_MALTA 1938 depends on PCI 1939 bool 1940 default y 1941 1942# 1943# CPU may reorder R->R, R->W, W->R, W->W 1944# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 1945# 1946config WEAK_ORDERING 1947 bool 1948 1949# 1950# CPU may reorder reads and writes beyond LL/SC 1951# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 1952# 1953config WEAK_REORDERING_BEYOND_LLSC 1954 bool 1955endmenu 1956 1957# 1958# These two indicate any level of the MIPS32 and MIPS64 architecture 1959# 1960config CPU_MIPS32 1961 bool 1962 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6 1963 1964config CPU_MIPS64 1965 bool 1966 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 1967 1968# 1969# These two indicate the revision of the architecture, either Release 1 or Release 2 1970# 1971config CPU_MIPSR1 1972 bool 1973 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 1974 1975config CPU_MIPSR2 1976 bool 1977 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 1978 select MIPS_SPRAM 1979 1980config CPU_MIPSR6 1981 bool 1982 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 1983 select MIPS_SPRAM 1984 1985config EVA 1986 bool 1987 1988config XPA 1989 bool 1990 1991config SYS_SUPPORTS_32BIT_KERNEL 1992 bool 1993config SYS_SUPPORTS_64BIT_KERNEL 1994 bool 1995config CPU_SUPPORTS_32BIT_KERNEL 1996 bool 1997config CPU_SUPPORTS_64BIT_KERNEL 1998 bool 1999config CPU_SUPPORTS_CPUFREQ 2000 bool 2001config CPU_SUPPORTS_ADDRWINCFG 2002 bool 2003config CPU_SUPPORTS_HUGEPAGES 2004 bool 2005config CPU_SUPPORTS_UNCACHED_ACCELERATED 2006 bool 2007config MIPS_PGD_C0_CONTEXT 2008 bool 2009 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP 2010 2011# 2012# Set to y for ptrace access to watch registers. 2013# 2014config HARDWARE_WATCHPOINTS 2015 bool 2016 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2017 2018menu "Kernel type" 2019 2020choice 2021 prompt "Kernel code model" 2022 help 2023 You should only select this option if you have a workload that 2024 actually benefits from 64-bit processing or if your machine has 2025 large memory. You will only be presented a single option in this 2026 menu if your system does not support both 32-bit and 64-bit kernels. 2027 2028config 32BIT 2029 bool "32-bit kernel" 2030 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2031 select TRAD_SIGNALS 2032 help 2033 Select this option if you want to build a 32-bit kernel. 2034 2035config 64BIT 2036 bool "64-bit kernel" 2037 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2038 help 2039 Select this option if you want to build a 64-bit kernel. 2040 2041endchoice 2042 2043config KVM_GUEST 2044 bool "KVM Guest Kernel" 2045 depends on BROKEN_ON_SMP 2046 help 2047 Select this option if building a guest kernel for KVM (Trap & Emulate) 2048 mode. 2049 2050config KVM_GUEST_TIMER_FREQ 2051 int "Count/Compare Timer Frequency (MHz)" 2052 depends on KVM_GUEST 2053 default 100 2054 help 2055 Set this to non-zero if building a guest kernel for KVM to skip RTC 2056 emulation when determining guest CPU Frequency. Instead, the guest's 2057 timer frequency is specified directly. 2058 2059choice 2060 prompt "Kernel page size" 2061 default PAGE_SIZE_4KB 2062 2063config PAGE_SIZE_4KB 2064 bool "4kB" 2065 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3 2066 help 2067 This option select the standard 4kB Linux page size. On some 2068 R3000-family processors this is the only available page size. Using 2069 4kB page size will minimize memory consumption and is therefore 2070 recommended for low memory systems. 2071 2072config PAGE_SIZE_8KB 2073 bool "8kB" 2074 depends on CPU_R8000 || CPU_CAVIUM_OCTEON 2075 help 2076 Using 8kB page size will result in higher performance kernel at 2077 the price of higher memory consumption. This option is available 2078 only on R8000 and cnMIPS processors. Note that you will need a 2079 suitable Linux distribution to support this. 2080 2081config PAGE_SIZE_16KB 2082 bool "16kB" 2083 depends on !CPU_R3000 && !CPU_TX39XX 2084 help 2085 Using 16kB page size will result in higher performance kernel at 2086 the price of higher memory consumption. This option is available on 2087 all non-R3000 family processors. Note that you will need a suitable 2088 Linux distribution to support this. 2089 2090config PAGE_SIZE_32KB 2091 bool "32kB" 2092 depends on CPU_CAVIUM_OCTEON 2093 help 2094 Using 32kB page size will result in higher performance kernel at 2095 the price of higher memory consumption. This option is available 2096 only on cnMIPS cores. Note that you will need a suitable Linux 2097 distribution to support this. 2098 2099config PAGE_SIZE_64KB 2100 bool "64kB" 2101 depends on !CPU_R3000 && !CPU_TX39XX && !CPU_R6000 2102 help 2103 Using 64kB page size will result in higher performance kernel at 2104 the price of higher memory consumption. This option is available on 2105 all non-R3000 family processor. Not that at the time of this 2106 writing this option is still high experimental. 2107 2108endchoice 2109 2110config FORCE_MAX_ZONEORDER 2111 int "Maximum zone order" 2112 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2113 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2114 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2115 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2116 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2117 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2118 range 11 64 2119 default "11" 2120 help 2121 The kernel memory allocator divides physically contiguous memory 2122 blocks into "zones", where each zone is a power of two number of 2123 pages. This option selects the largest power of two that the kernel 2124 keeps in the memory allocator. If you need to allocate very large 2125 blocks of physically contiguous memory, then you may need to 2126 increase this value. 2127 2128 This config option is actually maximum order plus one. For example, 2129 a value of 11 means that the largest free memory block is 2^10 pages. 2130 2131 The page size is not necessarily 4KB. Keep this in mind 2132 when choosing a value for this option. 2133 2134config BOARD_SCACHE 2135 bool 2136 2137config IP22_CPU_SCACHE 2138 bool 2139 select BOARD_SCACHE 2140 2141# 2142# Support for a MIPS32 / MIPS64 style S-caches 2143# 2144config MIPS_CPU_SCACHE 2145 bool 2146 select BOARD_SCACHE 2147 2148config R5000_CPU_SCACHE 2149 bool 2150 select BOARD_SCACHE 2151 2152config RM7000_CPU_SCACHE 2153 bool 2154 select BOARD_SCACHE 2155 2156config SIBYTE_DMA_PAGEOPS 2157 bool "Use DMA to clear/copy pages" 2158 depends on CPU_SB1 2159 help 2160 Instead of using the CPU to zero and copy pages, use a Data Mover 2161 channel. These DMA channels are otherwise unused by the standard 2162 SiByte Linux port. Seems to give a small performance benefit. 2163 2164config CPU_HAS_PREFETCH 2165 bool 2166 2167config CPU_GENERIC_DUMP_TLB 2168 bool 2169 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX) 2170 2171config CPU_R4K_FPU 2172 bool 2173 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 2174 2175config CPU_R4K_CACHE_TLB 2176 bool 2177 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 2178 2179config MIPS_MT_SMP 2180 bool "MIPS MT SMP support (1 TC on each available VPE)" 2181 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 2182 select CPU_MIPSR2_IRQ_VI 2183 select CPU_MIPSR2_IRQ_EI 2184 select SYNC_R4K 2185 select MIPS_MT 2186 select SMP 2187 select SMP_UP 2188 select SYS_SUPPORTS_SMP 2189 select SYS_SUPPORTS_SCHED_SMT 2190 select MIPS_PERF_SHARED_TC_COUNTERS 2191 help 2192 This is a kernel model which is known as SMVP. This is supported 2193 on cores with the MT ASE and uses the available VPEs to implement 2194 virtual processors which supports SMP. This is equivalent to the 2195 Intel Hyperthreading feature. For further information go to 2196 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2197 2198config MIPS_MT 2199 bool 2200 2201config SCHED_SMT 2202 bool "SMT (multithreading) scheduler support" 2203 depends on SYS_SUPPORTS_SCHED_SMT 2204 default n 2205 help 2206 SMT scheduler support improves the CPU scheduler's decision making 2207 when dealing with MIPS MT enabled cores at a cost of slightly 2208 increased overhead in some places. If unsure say N here. 2209 2210config SYS_SUPPORTS_SCHED_SMT 2211 bool 2212 2213config SYS_SUPPORTS_MULTITHREADING 2214 bool 2215 2216config MIPS_MT_FPAFF 2217 bool "Dynamic FPU affinity for FP-intensive threads" 2218 default y 2219 depends on MIPS_MT_SMP 2220 2221config MIPSR2_TO_R6_EMULATOR 2222 bool "MIPS R2-to-R6 emulator" 2223 depends on CPU_MIPSR6 && !SMP 2224 default y 2225 help 2226 Choose this option if you want to run non-R6 MIPS userland code. 2227 Even if you say 'Y' here, the emulator will still be disabled by 2228 default. You can enable it using the 'mipsr2emu' kernel option. 2229 The only reason this is a build-time option is to save ~14K from the 2230 final kernel image. 2231comment "MIPS R2-to-R6 emulator is only available for UP kernels" 2232 depends on SMP && CPU_MIPSR6 2233 2234config MIPS_VPE_LOADER 2235 bool "VPE loader support." 2236 depends on SYS_SUPPORTS_MULTITHREADING && MODULES 2237 select CPU_MIPSR2_IRQ_VI 2238 select CPU_MIPSR2_IRQ_EI 2239 select MIPS_MT 2240 help 2241 Includes a loader for loading an elf relocatable object 2242 onto another VPE and running it. 2243 2244config MIPS_VPE_LOADER_CMP 2245 bool 2246 default "y" 2247 depends on MIPS_VPE_LOADER && MIPS_CMP 2248 2249config MIPS_VPE_LOADER_MT 2250 bool 2251 default "y" 2252 depends on MIPS_VPE_LOADER && !MIPS_CMP 2253 2254config MIPS_VPE_LOADER_TOM 2255 bool "Load VPE program into memory hidden from linux" 2256 depends on MIPS_VPE_LOADER 2257 default y 2258 help 2259 The loader can use memory that is present but has been hidden from 2260 Linux using the kernel command line option "mem=xxMB". It's up to 2261 you to ensure the amount you put in the option and the space your 2262 program requires is less or equal to the amount physically present. 2263 2264config MIPS_VPE_APSP_API 2265 bool "Enable support for AP/SP API (RTLX)" 2266 depends on MIPS_VPE_LOADER 2267 help 2268 2269config MIPS_VPE_APSP_API_CMP 2270 bool 2271 default "y" 2272 depends on MIPS_VPE_APSP_API && MIPS_CMP 2273 2274config MIPS_VPE_APSP_API_MT 2275 bool 2276 default "y" 2277 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2278 2279config MIPS_CMP 2280 bool "MIPS CMP framework support (DEPRECATED)" 2281 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2282 select SMP 2283 select SYNC_R4K 2284 select SYS_SUPPORTS_SMP 2285 select WEAK_ORDERING 2286 default n 2287 help 2288 Select this if you are using a bootloader which implements the "CMP 2289 framework" protocol (ie. YAMON) and want your kernel to make use of 2290 its ability to start secondary CPUs. 2291 2292 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2293 instead of this. 2294 2295config MIPS_CPS 2296 bool "MIPS Coherent Processing System support" 2297 depends on SYS_SUPPORTS_MIPS_CPS 2298 select MIPS_CM 2299 select MIPS_CPC 2300 select MIPS_CPS_PM if HOTPLUG_CPU 2301 select SMP 2302 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2303 select SYS_SUPPORTS_HOTPLUG_CPU 2304 select SYS_SUPPORTS_SMP 2305 select WEAK_ORDERING 2306 help 2307 Select this if you wish to run an SMP kernel across multiple cores 2308 within a MIPS Coherent Processing System. When this option is 2309 enabled the kernel will probe for other cores and boot them with 2310 no external assistance. It is safe to enable this when hardware 2311 support is unavailable. 2312 2313config MIPS_CPS_PM 2314 depends on MIPS_CPS 2315 select MIPS_CPC 2316 bool 2317 2318config MIPS_CM 2319 bool 2320 2321config MIPS_CPC 2322 bool 2323 2324config SB1_PASS_2_WORKAROUNDS 2325 bool 2326 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2327 default y 2328 2329config SB1_PASS_2_1_WORKAROUNDS 2330 bool 2331 depends on CPU_SB1 && CPU_SB1_PASS_2 2332 default y 2333 2334 2335config ARCH_PHYS_ADDR_T_64BIT 2336 bool 2337 2338choice 2339 prompt "SmartMIPS or microMIPS ASE support" 2340 2341config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2342 bool "None" 2343 help 2344 Select this if you want neither microMIPS nor SmartMIPS support 2345 2346config CPU_HAS_SMARTMIPS 2347 depends on SYS_SUPPORTS_SMARTMIPS 2348 bool "SmartMIPS" 2349 help 2350 SmartMIPS is a extension of the MIPS32 architecture aimed at 2351 increased security at both hardware and software level for 2352 smartcards. Enabling this option will allow proper use of the 2353 SmartMIPS instructions by Linux applications. However a kernel with 2354 this option will not work on a MIPS core without SmartMIPS core. If 2355 you don't know you probably don't have SmartMIPS and should say N 2356 here. 2357 2358config CPU_MICROMIPS 2359 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2360 bool "microMIPS" 2361 help 2362 When this option is enabled the kernel will be built using the 2363 microMIPS ISA 2364 2365endchoice 2366 2367config CPU_HAS_MSA 2368 bool "Support for the MIPS SIMD Architecture" 2369 depends on CPU_SUPPORTS_MSA 2370 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2371 help 2372 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2373 and a set of SIMD instructions to operate on them. When this option 2374 is enabled the kernel will support allocating & switching MSA 2375 vector register contexts. If you know that your kernel will only be 2376 running on CPUs which do not support MSA or that your userland will 2377 not be making use of it then you may wish to say N here to reduce 2378 the size & complexity of your kernel. 2379 2380 If unsure, say Y. 2381 2382config CPU_HAS_WB 2383 bool 2384 2385config XKS01 2386 bool 2387 2388# 2389# Vectored interrupt mode is an R2 feature 2390# 2391config CPU_MIPSR2_IRQ_VI 2392 bool 2393 2394# 2395# Extended interrupt mode is an R2 feature 2396# 2397config CPU_MIPSR2_IRQ_EI 2398 bool 2399 2400config CPU_HAS_SYNC 2401 bool 2402 depends on !CPU_R3000 2403 default y 2404 2405# 2406# CPU non-features 2407# 2408config CPU_DADDI_WORKAROUNDS 2409 bool 2410 2411config CPU_R4000_WORKAROUNDS 2412 bool 2413 select CPU_R4400_WORKAROUNDS 2414 2415config CPU_R4400_WORKAROUNDS 2416 bool 2417 2418# 2419# - Highmem only makes sense for the 32-bit kernel. 2420# - The current highmem code will only work properly on physically indexed 2421# caches such as R3000, SB1, R7000 or those that look like they're virtually 2422# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2423# moment we protect the user and offer the highmem option only on machines 2424# where it's known to be safe. This will not offer highmem on a few systems 2425# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2426# indexed CPUs but we're playing safe. 2427# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2428# know they might have memory configurations that could make use of highmem 2429# support. 2430# 2431config HIGHMEM 2432 bool "High Memory Support" 2433 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2434 2435config CPU_SUPPORTS_HIGHMEM 2436 bool 2437 2438config SYS_SUPPORTS_HIGHMEM 2439 bool 2440 2441config SYS_SUPPORTS_SMARTMIPS 2442 bool 2443 2444config SYS_SUPPORTS_MICROMIPS 2445 bool 2446 2447config SYS_SUPPORTS_MIPS16 2448 bool 2449 help 2450 This option must be set if a kernel might be executed on a MIPS16- 2451 enabled CPU even if MIPS16 is not actually being used. In other 2452 words, it makes the kernel MIPS16-tolerant. 2453 2454config CPU_SUPPORTS_MSA 2455 bool 2456 2457config ARCH_FLATMEM_ENABLE 2458 def_bool y 2459 depends on !NUMA && !CPU_LOONGSON2 2460 2461config ARCH_DISCONTIGMEM_ENABLE 2462 bool 2463 default y if SGI_IP27 2464 help 2465 Say Y to support efficient handling of discontiguous physical memory, 2466 for architectures which are either NUMA (Non-Uniform Memory Access) 2467 or have huge holes in the physical address space for other reasons. 2468 See <file:Documentation/vm/numa> for more. 2469 2470config ARCH_SPARSEMEM_ENABLE 2471 bool 2472 select SPARSEMEM_STATIC 2473 2474config NUMA 2475 bool "NUMA Support" 2476 depends on SYS_SUPPORTS_NUMA 2477 help 2478 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2479 Access). This option improves performance on systems with more 2480 than two nodes; on two node systems it is generally better to 2481 leave it disabled; on single node systems disable this option 2482 disabled. 2483 2484config SYS_SUPPORTS_NUMA 2485 bool 2486 2487config RELOCATABLE 2488 bool "Relocatable kernel" 2489 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6) 2490 help 2491 This builds a kernel image that retains relocation information 2492 so it can be loaded someplace besides the default 1MB. 2493 The relocations make the kernel binary about 15% larger, 2494 but are discarded at runtime 2495 2496config RELOCATION_TABLE_SIZE 2497 hex "Relocation table size" 2498 depends on RELOCATABLE 2499 range 0x0 0x01000000 2500 default "0x00100000" 2501 ---help--- 2502 A table of relocation data will be appended to the kernel binary 2503 and parsed at boot to fix up the relocated kernel. 2504 2505 This option allows the amount of space reserved for the table to be 2506 adjusted, although the default of 1Mb should be ok in most cases. 2507 2508 The build will fail and a valid size suggested if this is too small. 2509 2510 If unsure, leave at the default value. 2511 2512config RANDOMIZE_BASE 2513 bool "Randomize the address of the kernel image" 2514 depends on RELOCATABLE 2515 ---help--- 2516 Randomizes the physical and virtual address at which the 2517 kernel image is loaded, as a security feature that 2518 deters exploit attempts relying on knowledge of the location 2519 of kernel internals. 2520 2521 Entropy is generated using any coprocessor 0 registers available. 2522 2523 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2524 2525 If unsure, say N. 2526 2527config RANDOMIZE_BASE_MAX_OFFSET 2528 hex "Maximum kASLR offset" if EXPERT 2529 depends on RANDOMIZE_BASE 2530 range 0x0 0x40000000 if EVA || 64BIT 2531 range 0x0 0x08000000 2532 default "0x01000000" 2533 ---help--- 2534 When kASLR is active, this provides the maximum offset that will 2535 be applied to the kernel image. It should be set according to the 2536 amount of physical RAM available in the target system minus 2537 PHYSICAL_START and must be a power of 2. 2538 2539 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2540 EVA or 64-bit. The default is 16Mb. 2541 2542config NODES_SHIFT 2543 int 2544 default "6" 2545 depends on NEED_MULTIPLE_NODES 2546 2547config HW_PERF_EVENTS 2548 bool "Enable hardware performance counter support for perf events" 2549 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3) 2550 default y 2551 help 2552 Enable hardware performance counter support for perf events. If 2553 disabled, perf events will use software events only. 2554 2555source "mm/Kconfig" 2556 2557config SMP 2558 bool "Multi-Processing support" 2559 depends on SYS_SUPPORTS_SMP 2560 help 2561 This enables support for systems with more than one CPU. If you have 2562 a system with only one CPU, say N. If you have a system with more 2563 than one CPU, say Y. 2564 2565 If you say N here, the kernel will run on uni- and multiprocessor 2566 machines, but will use only one CPU of a multiprocessor machine. If 2567 you say Y here, the kernel will run on many, but not all, 2568 uniprocessor machines. On a uniprocessor machine, the kernel 2569 will run faster if you say N here. 2570 2571 People using multiprocessor machines who say Y here should also say 2572 Y to "Enhanced Real Time Clock Support", below. 2573 2574 See also the SMP-HOWTO available at 2575 <http://www.tldp.org/docs.html#howto>. 2576 2577 If you don't know what to do here, say N. 2578 2579config SMP_UP 2580 bool 2581 2582config SYS_SUPPORTS_MIPS_CMP 2583 bool 2584 2585config SYS_SUPPORTS_MIPS_CPS 2586 bool 2587 2588config SYS_SUPPORTS_SMP 2589 bool 2590 2591config NR_CPUS_DEFAULT_4 2592 bool 2593 2594config NR_CPUS_DEFAULT_8 2595 bool 2596 2597config NR_CPUS_DEFAULT_16 2598 bool 2599 2600config NR_CPUS_DEFAULT_32 2601 bool 2602 2603config NR_CPUS_DEFAULT_64 2604 bool 2605 2606config NR_CPUS 2607 int "Maximum number of CPUs (2-256)" 2608 range 2 256 2609 depends on SMP 2610 default "4" if NR_CPUS_DEFAULT_4 2611 default "8" if NR_CPUS_DEFAULT_8 2612 default "16" if NR_CPUS_DEFAULT_16 2613 default "32" if NR_CPUS_DEFAULT_32 2614 default "64" if NR_CPUS_DEFAULT_64 2615 help 2616 This allows you to specify the maximum number of CPUs which this 2617 kernel will support. The maximum supported value is 32 for 32-bit 2618 kernel and 64 for 64-bit kernels; the minimum value which makes 2619 sense is 1 for Qemu (useful only for kernel debugging purposes) 2620 and 2 for all others. 2621 2622 This is purely to save memory - each supported CPU adds 2623 approximately eight kilobytes to the kernel image. For best 2624 performance should round up your number of processors to the next 2625 power of two. 2626 2627config MIPS_PERF_SHARED_TC_COUNTERS 2628 bool 2629 2630# 2631# Timer Interrupt Frequency Configuration 2632# 2633 2634choice 2635 prompt "Timer frequency" 2636 default HZ_250 2637 help 2638 Allows the configuration of the timer frequency. 2639 2640 config HZ_24 2641 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2642 2643 config HZ_48 2644 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2645 2646 config HZ_100 2647 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2648 2649 config HZ_128 2650 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2651 2652 config HZ_250 2653 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2654 2655 config HZ_256 2656 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2657 2658 config HZ_1000 2659 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2660 2661 config HZ_1024 2662 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2663 2664endchoice 2665 2666config SYS_SUPPORTS_24HZ 2667 bool 2668 2669config SYS_SUPPORTS_48HZ 2670 bool 2671 2672config SYS_SUPPORTS_100HZ 2673 bool 2674 2675config SYS_SUPPORTS_128HZ 2676 bool 2677 2678config SYS_SUPPORTS_250HZ 2679 bool 2680 2681config SYS_SUPPORTS_256HZ 2682 bool 2683 2684config SYS_SUPPORTS_1000HZ 2685 bool 2686 2687config SYS_SUPPORTS_1024HZ 2688 bool 2689 2690config SYS_SUPPORTS_ARBIT_HZ 2691 bool 2692 default y if !SYS_SUPPORTS_24HZ && \ 2693 !SYS_SUPPORTS_48HZ && \ 2694 !SYS_SUPPORTS_100HZ && \ 2695 !SYS_SUPPORTS_128HZ && \ 2696 !SYS_SUPPORTS_250HZ && \ 2697 !SYS_SUPPORTS_256HZ && \ 2698 !SYS_SUPPORTS_1000HZ && \ 2699 !SYS_SUPPORTS_1024HZ 2700 2701config HZ 2702 int 2703 default 24 if HZ_24 2704 default 48 if HZ_48 2705 default 100 if HZ_100 2706 default 128 if HZ_128 2707 default 250 if HZ_250 2708 default 256 if HZ_256 2709 default 1000 if HZ_1000 2710 default 1024 if HZ_1024 2711 2712config SCHED_HRTICK 2713 def_bool HIGH_RES_TIMERS 2714 2715source "kernel/Kconfig.preempt" 2716 2717config KEXEC 2718 bool "Kexec system call" 2719 select KEXEC_CORE 2720 help 2721 kexec is a system call that implements the ability to shutdown your 2722 current kernel, and to start another kernel. It is like a reboot 2723 but it is independent of the system firmware. And like a reboot 2724 you can start any kernel with it, not just Linux. 2725 2726 The name comes from the similarity to the exec system call. 2727 2728 It is an ongoing process to be certain the hardware in a machine 2729 is properly shutdown, so do not be surprised if this code does not 2730 initially work for you. As of this writing the exact hardware 2731 interface is strongly in flux, so no good recommendation can be 2732 made. 2733 2734config CRASH_DUMP 2735 bool "Kernel crash dumps" 2736 help 2737 Generate crash dump after being started by kexec. 2738 This should be normally only set in special crash dump kernels 2739 which are loaded in the main kernel with kexec-tools into 2740 a specially reserved region and then later executed after 2741 a crash by kdump/kexec. The crash dump kernel must be compiled 2742 to a memory address not used by the main kernel or firmware using 2743 PHYSICAL_START. 2744 2745config PHYSICAL_START 2746 hex "Physical address where the kernel is loaded" 2747 default "0xffffffff84000000" if 64BIT 2748 default "0x84000000" if 32BIT 2749 depends on CRASH_DUMP 2750 help 2751 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2752 If you plan to use kernel for capturing the crash dump change 2753 this value to start of the reserved region (the "X" value as 2754 specified in the "crashkernel=YM@XM" command line boot parameter 2755 passed to the panic-ed kernel). 2756 2757config SECCOMP 2758 bool "Enable seccomp to safely compute untrusted bytecode" 2759 depends on PROC_FS 2760 default y 2761 help 2762 This kernel feature is useful for number crunching applications 2763 that may need to compute untrusted bytecode during their 2764 execution. By using pipes or other transports made available to 2765 the process as file descriptors supporting the read/write 2766 syscalls, it's possible to isolate those applications in 2767 their own address space using seccomp. Once seccomp is 2768 enabled via /proc/<pid>/seccomp, it cannot be disabled 2769 and the task is only allowed to execute a few safe syscalls 2770 defined by each seccomp mode. 2771 2772 If unsure, say Y. Only embedded should say N here. 2773 2774config MIPS_O32_FP64_SUPPORT 2775 bool "Support for O32 binaries using 64-bit FP" 2776 depends on 32BIT || MIPS32_O32 2777 help 2778 When this is enabled, the kernel will support use of 64-bit floating 2779 point registers with binaries using the O32 ABI along with the 2780 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 2781 32-bit MIPS systems this support is at the cost of increasing the 2782 size and complexity of the compiled FPU emulator. Thus if you are 2783 running a MIPS32 system and know that none of your userland binaries 2784 will require 64-bit floating point, you may wish to reduce the size 2785 of your kernel & potentially improve FP emulation performance by 2786 saying N here. 2787 2788 Although binutils currently supports use of this flag the details 2789 concerning its effect upon the O32 ABI in userland are still being 2790 worked on. In order to avoid userland becoming dependant upon current 2791 behaviour before the details have been finalised, this option should 2792 be considered experimental and only enabled by those working upon 2793 said details. 2794 2795 If unsure, say N. 2796 2797config USE_OF 2798 bool 2799 select OF 2800 select OF_EARLY_FLATTREE 2801 select IRQ_DOMAIN 2802 2803config BUILTIN_DTB 2804 bool 2805 2806choice 2807 prompt "Kernel appended dtb support" if USE_OF 2808 default MIPS_NO_APPENDED_DTB 2809 2810 config MIPS_NO_APPENDED_DTB 2811 bool "None" 2812 help 2813 Do not enable appended dtb support. 2814 2815 config MIPS_ELF_APPENDED_DTB 2816 bool "vmlinux" 2817 help 2818 With this option, the boot code will look for a device tree binary 2819 DTB) included in the vmlinux ELF section .appended_dtb. By default 2820 it is empty and the DTB can be appended using binutils command 2821 objcopy: 2822 2823 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 2824 2825 This is meant as a backward compatiblity convenience for those 2826 systems with a bootloader that can't be upgraded to accommodate 2827 the documented boot protocol using a device tree. 2828 2829 config MIPS_RAW_APPENDED_DTB 2830 bool "vmlinux.bin" 2831 help 2832 With this option, the boot code will look for a device tree binary 2833 DTB) appended to raw vmlinux.bin (without decompressor). 2834 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 2835 2836 This is meant as a backward compatibility convenience for those 2837 systems with a bootloader that can't be upgraded to accommodate 2838 the documented boot protocol using a device tree. 2839 2840 Beware that there is very little in terms of protection against 2841 this option being confused by leftover garbage in memory that might 2842 look like a DTB header after a reboot if no actual DTB is appended 2843 to vmlinux.bin. Do not leave this option active in a production kernel 2844 if you don't intend to always append a DTB. 2845 2846 config MIPS_ZBOOT_APPENDED_DTB 2847 bool "vmlinuz.bin" 2848 depends on SYS_SUPPORTS_ZBOOT 2849 help 2850 With this option, the boot code will look for a device tree binary 2851 DTB) appended to raw vmlinuz.bin (with decompressor). 2852 (e.g. cat vmlinuz.bin <filename>.dtb > vmlinuz_w_dtb). 2853 2854 This is meant as a backward compatibility convenience for those 2855 systems with a bootloader that can't be upgraded to accommodate 2856 the documented boot protocol using a device tree. 2857 2858 Beware that there is very little in terms of protection against 2859 this option being confused by leftover garbage in memory that might 2860 look like a DTB header after a reboot if no actual DTB is appended 2861 to vmlinuz.bin. Do not leave this option active in a production kernel 2862 if you don't intend to always append a DTB. 2863endchoice 2864 2865choice 2866 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 2867 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 2868 !MIPS_MALTA && !MIPS_SEAD3 && \ 2869 !CAVIUM_OCTEON_SOC 2870 default MIPS_CMDLINE_FROM_BOOTLOADER 2871 2872 config MIPS_CMDLINE_FROM_DTB 2873 depends on USE_OF 2874 bool "Dtb kernel arguments if available" 2875 2876 config MIPS_CMDLINE_DTB_EXTEND 2877 depends on USE_OF 2878 bool "Extend dtb kernel arguments with bootloader arguments" 2879 2880 config MIPS_CMDLINE_FROM_BOOTLOADER 2881 bool "Bootloader kernel arguments if available" 2882endchoice 2883 2884endmenu 2885 2886config LOCKDEP_SUPPORT 2887 bool 2888 default y 2889 2890config STACKTRACE_SUPPORT 2891 bool 2892 default y 2893 2894config HAVE_LATENCYTOP_SUPPORT 2895 bool 2896 default y 2897 2898config PGTABLE_LEVELS 2899 int 2900 default 3 if 64BIT && !PAGE_SIZE_64KB 2901 default 2 2902 2903source "init/Kconfig" 2904 2905source "kernel/Kconfig.freezer" 2906 2907menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 2908 2909config HW_HAS_EISA 2910 bool 2911config HW_HAS_PCI 2912 bool 2913 2914config PCI 2915 bool "Support for PCI controller" 2916 depends on HW_HAS_PCI 2917 select PCI_DOMAINS 2918 select NO_GENERIC_PCI_IOPORT_MAP 2919 help 2920 Find out whether you have a PCI motherboard. PCI is the name of a 2921 bus system, i.e. the way the CPU talks to the other stuff inside 2922 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, 2923 say Y, otherwise N. 2924 2925config HT_PCI 2926 bool "Support for HT-linked PCI" 2927 default y 2928 depends on CPU_LOONGSON3 2929 select PCI 2930 select PCI_DOMAINS 2931 help 2932 Loongson family machines use Hyper-Transport bus for inter-core 2933 connection and device connection. The PCI bus is a subordinate 2934 linked at HT. Choose Y for Loongson-3 based machines. 2935 2936config PCI_DOMAINS 2937 bool 2938 2939source "drivers/pci/Kconfig" 2940 2941# 2942# ISA support is now enabled via select. Too many systems still have the one 2943# or other ISA chip on the board that users don't know about so don't expect 2944# users to choose the right thing ... 2945# 2946config ISA 2947 bool 2948 2949config EISA 2950 bool "EISA support" 2951 depends on HW_HAS_EISA 2952 select ISA 2953 select GENERIC_ISA_DMA 2954 ---help--- 2955 The Extended Industry Standard Architecture (EISA) bus was 2956 developed as an open alternative to the IBM MicroChannel bus. 2957 2958 The EISA bus provided some of the features of the IBM MicroChannel 2959 bus while maintaining backward compatibility with cards made for 2960 the older ISA bus. The EISA bus saw limited use between 1988 and 2961 1995 when it was made obsolete by the PCI bus. 2962 2963 Say Y here if you are building a kernel for an EISA-based machine. 2964 2965 Otherwise, say N. 2966 2967source "drivers/eisa/Kconfig" 2968 2969config TC 2970 bool "TURBOchannel support" 2971 depends on MACH_DECSTATION 2972 help 2973 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 2974 processors. TURBOchannel programming specifications are available 2975 at: 2976 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 2977 and: 2978 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 2979 Linux driver support status is documented at: 2980 <http://www.linux-mips.org/wiki/DECstation> 2981 2982config MMU 2983 bool 2984 default y 2985 2986config I8253 2987 bool 2988 select CLKSRC_I8253 2989 select CLKEVT_I8253 2990 select MIPS_EXTERNAL_TIMER 2991 2992config ZONE_DMA 2993 bool 2994 2995config ZONE_DMA32 2996 bool 2997 2998source "drivers/pcmcia/Kconfig" 2999 3000config RAPIDIO 3001 tristate "RapidIO support" 3002 depends on PCI 3003 default n 3004 help 3005 If you say Y here, the kernel will include drivers and 3006 infrastructure code to support RapidIO interconnect devices. 3007 3008source "drivers/rapidio/Kconfig" 3009 3010endmenu 3011 3012menu "Executable file formats" 3013 3014source "fs/Kconfig.binfmt" 3015 3016config TRAD_SIGNALS 3017 bool 3018 3019config MIPS32_COMPAT 3020 bool 3021 3022config COMPAT 3023 bool 3024 3025config SYSVIPC_COMPAT 3026 bool 3027 3028config MIPS32_O32 3029 bool "Kernel support for o32 binaries" 3030 depends on 64BIT 3031 select ARCH_WANT_OLD_COMPAT_IPC 3032 select COMPAT 3033 select MIPS32_COMPAT 3034 select SYSVIPC_COMPAT if SYSVIPC 3035 help 3036 Select this option if you want to run o32 binaries. These are pure 3037 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3038 existing binaries are in this format. 3039 3040 If unsure, say Y. 3041 3042config MIPS32_N32 3043 bool "Kernel support for n32 binaries" 3044 depends on 64BIT 3045 select COMPAT 3046 select MIPS32_COMPAT 3047 select SYSVIPC_COMPAT if SYSVIPC 3048 help 3049 Select this option if you want to run n32 binaries. These are 3050 64-bit binaries using 32-bit quantities for addressing and certain 3051 data that would normally be 64-bit. They are used in special 3052 cases. 3053 3054 If unsure, say N. 3055 3056config BINFMT_ELF32 3057 bool 3058 default y if MIPS32_O32 || MIPS32_N32 3059 3060endmenu 3061 3062menu "Power management options" 3063 3064config ARCH_HIBERNATION_POSSIBLE 3065 def_bool y 3066 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3067 3068config ARCH_SUSPEND_POSSIBLE 3069 def_bool y 3070 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3071 3072source "kernel/power/Kconfig" 3073 3074endmenu 3075 3076config MIPS_EXTERNAL_TIMER 3077 bool 3078 3079menu "CPU Power Management" 3080 3081if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3082source "drivers/cpufreq/Kconfig" 3083endif 3084 3085source "drivers/cpuidle/Kconfig" 3086 3087endmenu 3088 3089source "net/Kconfig" 3090 3091source "drivers/Kconfig" 3092 3093source "drivers/firmware/Kconfig" 3094 3095source "fs/Kconfig" 3096 3097source "arch/mips/Kconfig.debug" 3098 3099source "security/Kconfig" 3100 3101source "crypto/Kconfig" 3102 3103source "lib/Kconfig" 3104 3105source "arch/mips/kvm/Kconfig" 3106