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 HAVE_DMA_CONTIGUOUS 34 select HAVE_DMA_API_DEBUG 35 select GENERIC_IRQ_PROBE 36 select GENERIC_IRQ_SHOW 37 select GENERIC_PCI_IOMAP 38 select HAVE_ARCH_JUMP_LABEL 39 select ARCH_WANT_IPC_PARSE_VERSION 40 select IRQ_FORCED_THREADING 41 select HAVE_MEMBLOCK 42 select HAVE_MEMBLOCK_NODE_MAP 43 select ARCH_DISCARD_MEMBLOCK 44 select GENERIC_SMP_IDLE_THREAD 45 select BUILDTIME_EXTABLE_SORT 46 select GENERIC_CLOCKEVENTS 47 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC 48 select GENERIC_CMOS_UPDATE 49 select HAVE_MOD_ARCH_SPECIFIC 50 select HAVE_NMI 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 select HAVE_EXIT_THREAD 67 select HAVE_REGS_AND_STACK_ACCESS_API 68 select HAVE_ARCH_HARDENED_USERCOPY 69 70menu "Machine selection" 71 72choice 73 prompt "System type" 74 default SGI_IP22 75 76config MIPS_GENERIC 77 bool "Generic board-agnostic MIPS kernel" 78 select BOOT_RAW 79 select BUILTIN_DTB 80 select CEVT_R4K 81 select CLKSRC_MIPS_GIC 82 select COMMON_CLK 83 select CPU_MIPSR2_IRQ_VI 84 select CPU_MIPSR2_IRQ_EI 85 select CSRC_R4K 86 select DMA_PERDEV_COHERENT 87 select HW_HAS_PCI 88 select IRQ_MIPS_CPU 89 select LIBFDT 90 select MIPS_CPU_SCACHE 91 select MIPS_GIC 92 select MIPS_L1_CACHE_SHIFT_7 93 select NO_EXCEPT_FILL 94 select PCI_DRIVERS_GENERIC 95 select PINCTRL 96 select SMP_UP if SMP 97 select SYS_HAS_CPU_MIPS32_R1 98 select SYS_HAS_CPU_MIPS32_R2 99 select SYS_HAS_CPU_MIPS32_R6 100 select SYS_HAS_CPU_MIPS64_R1 101 select SYS_HAS_CPU_MIPS64_R2 102 select SYS_HAS_CPU_MIPS64_R6 103 select SYS_SUPPORTS_32BIT_KERNEL 104 select SYS_SUPPORTS_64BIT_KERNEL 105 select SYS_SUPPORTS_BIG_ENDIAN 106 select SYS_SUPPORTS_HIGHMEM 107 select SYS_SUPPORTS_LITTLE_ENDIAN 108 select SYS_SUPPORTS_MICROMIPS 109 select SYS_SUPPORTS_MIPS_CPS 110 select SYS_SUPPORTS_MIPS16 111 select SYS_SUPPORTS_MULTITHREADING 112 select SYS_SUPPORTS_RELOCATABLE 113 select SYS_SUPPORTS_SMARTMIPS 114 select USB_EHCI_BIG_ENDIAN_DESC if BIG_ENDIAN 115 select USB_EHCI_BIG_ENDIAN_MMIO if BIG_ENDIAN 116 select USB_OHCI_BIG_ENDIAN_DESC if BIG_ENDIAN 117 select USB_OHCI_BIG_ENDIAN_MMIO if BIG_ENDIAN 118 select USB_UHCI_BIG_ENDIAN_DESC if BIG_ENDIAN 119 select USB_UHCI_BIG_ENDIAN_MMIO if BIG_ENDIAN 120 select USE_OF 121 help 122 Select this to build a kernel which aims to support multiple boards, 123 generally using a flattened device tree passed from the bootloader 124 using the boot protocol defined in the UHI (Unified Hosting 125 Interface) specification. 126 127config MIPS_ALCHEMY 128 bool "Alchemy processor based machines" 129 select ARCH_PHYS_ADDR_T_64BIT 130 select CEVT_R4K 131 select CSRC_R4K 132 select IRQ_MIPS_CPU 133 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is 134 select SYS_HAS_CPU_MIPS32_R1 135 select SYS_SUPPORTS_32BIT_KERNEL 136 select SYS_SUPPORTS_APM_EMULATION 137 select GPIOLIB 138 select SYS_SUPPORTS_ZBOOT 139 select COMMON_CLK 140 141config AR7 142 bool "Texas Instruments AR7" 143 select BOOT_ELF32 144 select DMA_NONCOHERENT 145 select CEVT_R4K 146 select CSRC_R4K 147 select IRQ_MIPS_CPU 148 select NO_EXCEPT_FILL 149 select SWAP_IO_SPACE 150 select SYS_HAS_CPU_MIPS32_R1 151 select SYS_HAS_EARLY_PRINTK 152 select SYS_SUPPORTS_32BIT_KERNEL 153 select SYS_SUPPORTS_LITTLE_ENDIAN 154 select SYS_SUPPORTS_MIPS16 155 select SYS_SUPPORTS_ZBOOT_UART16550 156 select GPIOLIB 157 select VLYNQ 158 select HAVE_CLK 159 help 160 Support for the Texas Instruments AR7 System-on-a-Chip 161 family: TNETD7100, 7200 and 7300. 162 163config ATH25 164 bool "Atheros AR231x/AR531x SoC support" 165 select CEVT_R4K 166 select CSRC_R4K 167 select DMA_NONCOHERENT 168 select IRQ_MIPS_CPU 169 select IRQ_DOMAIN 170 select SYS_HAS_CPU_MIPS32_R1 171 select SYS_SUPPORTS_BIG_ENDIAN 172 select SYS_SUPPORTS_32BIT_KERNEL 173 select SYS_HAS_EARLY_PRINTK 174 help 175 Support for Atheros AR231x and Atheros AR531x based boards 176 177config ATH79 178 bool "Atheros AR71XX/AR724X/AR913X based boards" 179 select ARCH_HAS_RESET_CONTROLLER 180 select BOOT_RAW 181 select CEVT_R4K 182 select CSRC_R4K 183 select DMA_NONCOHERENT 184 select GPIOLIB 185 select HAVE_CLK 186 select COMMON_CLK 187 select CLKDEV_LOOKUP 188 select IRQ_MIPS_CPU 189 select MIPS_MACHINE 190 select SYS_HAS_CPU_MIPS32_R2 191 select SYS_HAS_EARLY_PRINTK 192 select SYS_SUPPORTS_32BIT_KERNEL 193 select SYS_SUPPORTS_BIG_ENDIAN 194 select SYS_SUPPORTS_MIPS16 195 select SYS_SUPPORTS_ZBOOT_UART_PROM 196 select USE_OF 197 help 198 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 199 200config BMIPS_GENERIC 201 bool "Broadcom Generic BMIPS kernel" 202 select BOOT_RAW 203 select NO_EXCEPT_FILL 204 select USE_OF 205 select CEVT_R4K 206 select CSRC_R4K 207 select SYNC_R4K 208 select COMMON_CLK 209 select BCM6345_L1_IRQ 210 select BCM7038_L1_IRQ 211 select BCM7120_L2_IRQ 212 select BRCMSTB_L2_IRQ 213 select IRQ_MIPS_CPU 214 select DMA_NONCOHERENT 215 select SYS_SUPPORTS_32BIT_KERNEL 216 select SYS_SUPPORTS_LITTLE_ENDIAN 217 select SYS_SUPPORTS_BIG_ENDIAN 218 select SYS_SUPPORTS_HIGHMEM 219 select SYS_HAS_CPU_BMIPS32_3300 220 select SYS_HAS_CPU_BMIPS4350 221 select SYS_HAS_CPU_BMIPS4380 222 select SYS_HAS_CPU_BMIPS5000 223 select SWAP_IO_SPACE 224 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 225 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 226 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 227 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 228 help 229 Build a generic DT-based kernel image that boots on select 230 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top 231 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN 232 must be set appropriately for your board. 233 234config BCM47XX 235 bool "Broadcom BCM47XX based boards" 236 select BOOT_RAW 237 select CEVT_R4K 238 select CSRC_R4K 239 select DMA_NONCOHERENT 240 select HW_HAS_PCI 241 select IRQ_MIPS_CPU 242 select SYS_HAS_CPU_MIPS32_R1 243 select NO_EXCEPT_FILL 244 select SYS_SUPPORTS_32BIT_KERNEL 245 select SYS_SUPPORTS_LITTLE_ENDIAN 246 select SYS_SUPPORTS_MIPS16 247 select SYS_HAS_EARLY_PRINTK 248 select USE_GENERIC_EARLY_PRINTK_8250 249 select GPIOLIB 250 select LEDS_GPIO_REGISTER 251 select BCM47XX_NVRAM 252 select BCM47XX_SPROM 253 help 254 Support for BCM47XX based boards 255 256config BCM63XX 257 bool "Broadcom BCM63XX based boards" 258 select BOOT_RAW 259 select CEVT_R4K 260 select CSRC_R4K 261 select SYNC_R4K 262 select DMA_NONCOHERENT 263 select IRQ_MIPS_CPU 264 select SYS_SUPPORTS_32BIT_KERNEL 265 select SYS_SUPPORTS_BIG_ENDIAN 266 select SYS_HAS_EARLY_PRINTK 267 select SWAP_IO_SPACE 268 select GPIOLIB 269 select HAVE_CLK 270 select MIPS_L1_CACHE_SHIFT_4 271 help 272 Support for BCM63XX based boards 273 274config MIPS_COBALT 275 bool "Cobalt Server" 276 select CEVT_R4K 277 select CSRC_R4K 278 select CEVT_GT641XX 279 select DMA_NONCOHERENT 280 select HW_HAS_PCI 281 select I8253 282 select I8259 283 select IRQ_MIPS_CPU 284 select IRQ_GT641XX 285 select PCI_GT64XXX_PCI0 286 select PCI 287 select SYS_HAS_CPU_NEVADA 288 select SYS_HAS_EARLY_PRINTK 289 select SYS_SUPPORTS_32BIT_KERNEL 290 select SYS_SUPPORTS_64BIT_KERNEL 291 select SYS_SUPPORTS_LITTLE_ENDIAN 292 select USE_GENERIC_EARLY_PRINTK_8250 293 294config MACH_DECSTATION 295 bool "DECstations" 296 select BOOT_ELF32 297 select CEVT_DS1287 298 select CEVT_R4K if CPU_R4X00 299 select CSRC_IOASIC 300 select CSRC_R4K if CPU_R4X00 301 select CPU_DADDI_WORKAROUNDS if 64BIT 302 select CPU_R4000_WORKAROUNDS if 64BIT 303 select CPU_R4400_WORKAROUNDS if 64BIT 304 select DMA_NONCOHERENT 305 select NO_IOPORT_MAP 306 select IRQ_MIPS_CPU 307 select SYS_HAS_CPU_R3000 308 select SYS_HAS_CPU_R4X00 309 select SYS_SUPPORTS_32BIT_KERNEL 310 select SYS_SUPPORTS_64BIT_KERNEL 311 select SYS_SUPPORTS_LITTLE_ENDIAN 312 select SYS_SUPPORTS_128HZ 313 select SYS_SUPPORTS_256HZ 314 select SYS_SUPPORTS_1024HZ 315 select MIPS_L1_CACHE_SHIFT_4 316 help 317 This enables support for DEC's MIPS based workstations. For details 318 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 319 DECstation porting pages on <http://decstation.unix-ag.org/>. 320 321 If you have one of the following DECstation Models you definitely 322 want to choose R4xx0 for the CPU Type: 323 324 DECstation 5000/50 325 DECstation 5000/150 326 DECstation 5000/260 327 DECsystem 5900/260 328 329 otherwise choose R3000. 330 331config MACH_JAZZ 332 bool "Jazz family of machines" 333 select FW_ARC 334 select FW_ARC32 335 select ARCH_MAY_HAVE_PC_FDC 336 select CEVT_R4K 337 select CSRC_R4K 338 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 339 select GENERIC_ISA_DMA 340 select HAVE_PCSPKR_PLATFORM 341 select IRQ_MIPS_CPU 342 select I8253 343 select I8259 344 select ISA 345 select SYS_HAS_CPU_R4X00 346 select SYS_SUPPORTS_32BIT_KERNEL 347 select SYS_SUPPORTS_64BIT_KERNEL 348 select SYS_SUPPORTS_100HZ 349 help 350 This a family of machines based on the MIPS R4030 chipset which was 351 used by several vendors to build RISC/os and Windows NT workstations. 352 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 353 Olivetti M700-10 workstations. 354 355config MACH_INGENIC 356 bool "Ingenic SoC based machines" 357 select SYS_SUPPORTS_32BIT_KERNEL 358 select SYS_SUPPORTS_LITTLE_ENDIAN 359 select SYS_SUPPORTS_ZBOOT_UART16550 360 select DMA_NONCOHERENT 361 select IRQ_MIPS_CPU 362 select GPIOLIB 363 select COMMON_CLK 364 select GENERIC_IRQ_CHIP 365 select BUILTIN_DTB 366 select USE_OF 367 select LIBFDT 368 369config LANTIQ 370 bool "Lantiq based platforms" 371 select DMA_NONCOHERENT 372 select IRQ_MIPS_CPU 373 select CEVT_R4K 374 select CSRC_R4K 375 select SYS_HAS_CPU_MIPS32_R1 376 select SYS_HAS_CPU_MIPS32_R2 377 select SYS_SUPPORTS_BIG_ENDIAN 378 select SYS_SUPPORTS_32BIT_KERNEL 379 select SYS_SUPPORTS_MIPS16 380 select SYS_SUPPORTS_MULTITHREADING 381 select SYS_HAS_EARLY_PRINTK 382 select GPIOLIB 383 select SWAP_IO_SPACE 384 select BOOT_RAW 385 select CLKDEV_LOOKUP 386 select USE_OF 387 select PINCTRL 388 select PINCTRL_LANTIQ 389 select ARCH_HAS_RESET_CONTROLLER 390 select RESET_CONTROLLER 391 392config LASAT 393 bool "LASAT Networks platforms" 394 select CEVT_R4K 395 select CRC32 396 select CSRC_R4K 397 select DMA_NONCOHERENT 398 select SYS_HAS_EARLY_PRINTK 399 select HW_HAS_PCI 400 select IRQ_MIPS_CPU 401 select PCI_GT64XXX_PCI0 402 select MIPS_NILE4 403 select R5000_CPU_SCACHE 404 select SYS_HAS_CPU_R5000 405 select SYS_SUPPORTS_32BIT_KERNEL 406 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 407 select SYS_SUPPORTS_LITTLE_ENDIAN 408 409config MACH_LOONGSON32 410 bool "Loongson-1 family of machines" 411 select SYS_SUPPORTS_ZBOOT 412 help 413 This enables support for the Loongson-1 family of machines. 414 415 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by 416 the Institute of Computing Technology (ICT), Chinese Academy of 417 Sciences (CAS). 418 419config MACH_LOONGSON64 420 bool "Loongson-2/3 family of machines" 421 select SYS_SUPPORTS_ZBOOT 422 help 423 This enables the support of Loongson-2/3 family of machines. 424 425 Loongson-2 is a family of single-core CPUs and Loongson-3 is a 426 family of multi-core CPUs. They are both 64-bit general-purpose 427 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute 428 of Computing Technology (ICT), Chinese Academy of Sciences (CAS) 429 in the People's Republic of China. The chief architect is Professor 430 Weiwu Hu. 431 432config MACH_PISTACHIO 433 bool "IMG Pistachio SoC based boards" 434 select BOOT_ELF32 435 select BOOT_RAW 436 select CEVT_R4K 437 select CLKSRC_MIPS_GIC 438 select COMMON_CLK 439 select CSRC_R4K 440 select DMA_NONCOHERENT 441 select GPIOLIB 442 select IRQ_MIPS_CPU 443 select LIBFDT 444 select MFD_SYSCON 445 select MIPS_CPU_SCACHE 446 select MIPS_GIC 447 select PINCTRL 448 select REGULATOR 449 select SYS_HAS_CPU_MIPS32_R2 450 select SYS_SUPPORTS_32BIT_KERNEL 451 select SYS_SUPPORTS_LITTLE_ENDIAN 452 select SYS_SUPPORTS_MIPS_CPS 453 select SYS_SUPPORTS_MULTITHREADING 454 select SYS_SUPPORTS_RELOCATABLE 455 select SYS_SUPPORTS_ZBOOT 456 select SYS_HAS_EARLY_PRINTK 457 select USE_GENERIC_EARLY_PRINTK_8250 458 select USE_OF 459 help 460 This enables support for the IMG Pistachio SoC platform. 461 462config MACH_XILFPGA 463 bool "MIPSfpga Xilinx based boards" 464 select BOOT_ELF32 465 select BOOT_RAW 466 select BUILTIN_DTB 467 select CEVT_R4K 468 select COMMON_CLK 469 select CSRC_R4K 470 select GPIOLIB 471 select IRQ_MIPS_CPU 472 select LIBFDT 473 select MIPS_CPU_SCACHE 474 select SYS_HAS_EARLY_PRINTK 475 select SYS_HAS_CPU_MIPS32_R2 476 select SYS_SUPPORTS_32BIT_KERNEL 477 select SYS_SUPPORTS_LITTLE_ENDIAN 478 select SYS_SUPPORTS_ZBOOT_UART16550 479 select USE_OF 480 select USE_GENERIC_EARLY_PRINTK_8250 481 help 482 This enables support for the IMG University Program MIPSfpga platform. 483 484config MIPS_MALTA 485 bool "MIPS Malta board" 486 select ARCH_MAY_HAVE_PC_FDC 487 select BOOT_ELF32 488 select BOOT_RAW 489 select BUILTIN_DTB 490 select CEVT_R4K 491 select CSRC_R4K 492 select CLKSRC_MIPS_GIC 493 select COMMON_CLK 494 select DMA_MAYBE_COHERENT 495 select GENERIC_ISA_DMA 496 select HAVE_PCSPKR_PLATFORM 497 select IRQ_MIPS_CPU 498 select MIPS_GIC 499 select HW_HAS_PCI 500 select I8253 501 select I8259 502 select MIPS_BONITO64 503 select MIPS_CPU_SCACHE 504 select MIPS_L1_CACHE_SHIFT_6 505 select PCI_GT64XXX_PCI0 506 select MIPS_MSC 507 select SMP_UP if SMP 508 select SWAP_IO_SPACE 509 select SYS_HAS_CPU_MIPS32_R1 510 select SYS_HAS_CPU_MIPS32_R2 511 select SYS_HAS_CPU_MIPS32_R3_5 512 select SYS_HAS_CPU_MIPS32_R5 513 select SYS_HAS_CPU_MIPS32_R6 514 select SYS_HAS_CPU_MIPS64_R1 515 select SYS_HAS_CPU_MIPS64_R2 516 select SYS_HAS_CPU_MIPS64_R6 517 select SYS_HAS_CPU_NEVADA 518 select SYS_HAS_CPU_RM7000 519 select SYS_SUPPORTS_32BIT_KERNEL 520 select SYS_SUPPORTS_64BIT_KERNEL 521 select SYS_SUPPORTS_BIG_ENDIAN 522 select SYS_SUPPORTS_HIGHMEM 523 select SYS_SUPPORTS_LITTLE_ENDIAN 524 select SYS_SUPPORTS_MICROMIPS 525 select SYS_SUPPORTS_MIPS_CMP 526 select SYS_SUPPORTS_MIPS_CPS 527 select SYS_SUPPORTS_MIPS16 528 select SYS_SUPPORTS_MULTITHREADING 529 select SYS_SUPPORTS_SMARTMIPS 530 select SYS_SUPPORTS_ZBOOT 531 select SYS_SUPPORTS_RELOCATABLE 532 select USE_OF 533 select LIBFDT 534 select ZONE_DMA32 if 64BIT 535 select BUILTIN_DTB 536 select LIBFDT 537 help 538 This enables support for the MIPS Technologies Malta evaluation 539 board. 540 541config MACH_PIC32 542 bool "Microchip PIC32 Family" 543 help 544 This enables support for the Microchip PIC32 family of platforms. 545 546 Microchip PIC32 is a family of general-purpose 32 bit MIPS core 547 microcontrollers. 548 549config NEC_MARKEINS 550 bool "NEC EMMA2RH Mark-eins board" 551 select SOC_EMMA2RH 552 select HW_HAS_PCI 553 help 554 This enables support for the NEC Electronics Mark-eins boards. 555 556config MACH_VR41XX 557 bool "NEC VR4100 series based machines" 558 select CEVT_R4K 559 select CSRC_R4K 560 select SYS_HAS_CPU_VR41XX 561 select SYS_SUPPORTS_MIPS16 562 select GPIOLIB 563 564config NXP_STB220 565 bool "NXP STB220 board" 566 select SOC_PNX833X 567 help 568 Support for NXP Semiconductors STB220 Development Board. 569 570config NXP_STB225 571 bool "NXP 225 board" 572 select SOC_PNX833X 573 select SOC_PNX8335 574 help 575 Support for NXP Semiconductors STB225 Development Board. 576 577config PMC_MSP 578 bool "PMC-Sierra MSP chipsets" 579 select CEVT_R4K 580 select CSRC_R4K 581 select DMA_NONCOHERENT 582 select SWAP_IO_SPACE 583 select NO_EXCEPT_FILL 584 select BOOT_RAW 585 select SYS_HAS_CPU_MIPS32_R1 586 select SYS_HAS_CPU_MIPS32_R2 587 select SYS_SUPPORTS_32BIT_KERNEL 588 select SYS_SUPPORTS_BIG_ENDIAN 589 select SYS_SUPPORTS_MIPS16 590 select IRQ_MIPS_CPU 591 select SERIAL_8250 592 select SERIAL_8250_CONSOLE 593 select USB_EHCI_BIG_ENDIAN_MMIO 594 select USB_EHCI_BIG_ENDIAN_DESC 595 help 596 This adds support for the PMC-Sierra family of Multi-Service 597 Processor System-On-A-Chips. These parts include a number 598 of integrated peripherals, interfaces and DSPs in addition to 599 a variety of MIPS cores. 600 601config RALINK 602 bool "Ralink based machines" 603 select CEVT_R4K 604 select CSRC_R4K 605 select BOOT_RAW 606 select DMA_NONCOHERENT 607 select IRQ_MIPS_CPU 608 select USE_OF 609 select SYS_HAS_CPU_MIPS32_R1 610 select SYS_HAS_CPU_MIPS32_R2 611 select SYS_SUPPORTS_32BIT_KERNEL 612 select SYS_SUPPORTS_LITTLE_ENDIAN 613 select SYS_SUPPORTS_MIPS16 614 select SYS_HAS_EARLY_PRINTK 615 select CLKDEV_LOOKUP 616 select ARCH_HAS_RESET_CONTROLLER 617 select RESET_CONTROLLER 618 619config SGI_IP22 620 bool "SGI IP22 (Indy/Indigo2)" 621 select FW_ARC 622 select FW_ARC32 623 select BOOT_ELF32 624 select CEVT_R4K 625 select CSRC_R4K 626 select DEFAULT_SGI_PARTITION 627 select DMA_NONCOHERENT 628 select HW_HAS_EISA 629 select I8253 630 select I8259 631 select IP22_CPU_SCACHE 632 select IRQ_MIPS_CPU 633 select GENERIC_ISA_DMA_SUPPORT_BROKEN 634 select SGI_HAS_I8042 635 select SGI_HAS_INDYDOG 636 select SGI_HAS_HAL2 637 select SGI_HAS_SEEQ 638 select SGI_HAS_WD93 639 select SGI_HAS_ZILOG 640 select SWAP_IO_SPACE 641 select SYS_HAS_CPU_R4X00 642 select SYS_HAS_CPU_R5000 643 # 644 # Disable EARLY_PRINTK for now since it leads to overwritten prom 645 # memory during early boot on some machines. 646 # 647 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 648 # for a more details discussion 649 # 650 # select SYS_HAS_EARLY_PRINTK 651 select SYS_SUPPORTS_32BIT_KERNEL 652 select SYS_SUPPORTS_64BIT_KERNEL 653 select SYS_SUPPORTS_BIG_ENDIAN 654 select MIPS_L1_CACHE_SHIFT_7 655 help 656 This are the SGI Indy, Challenge S and Indigo2, as well as certain 657 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 658 that runs on these, say Y here. 659 660config SGI_IP27 661 bool "SGI IP27 (Origin200/2000)" 662 select FW_ARC 663 select FW_ARC64 664 select BOOT_ELF64 665 select DEFAULT_SGI_PARTITION 666 select DMA_COHERENT 667 select SYS_HAS_EARLY_PRINTK 668 select HW_HAS_PCI 669 select NR_CPUS_DEFAULT_64 670 select SYS_HAS_CPU_R10000 671 select SYS_SUPPORTS_64BIT_KERNEL 672 select SYS_SUPPORTS_BIG_ENDIAN 673 select SYS_SUPPORTS_NUMA 674 select SYS_SUPPORTS_SMP 675 select MIPS_L1_CACHE_SHIFT_7 676 help 677 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 678 workstations. To compile a Linux kernel that runs on these, say Y 679 here. 680 681config SGI_IP28 682 bool "SGI IP28 (Indigo2 R10k)" 683 select FW_ARC 684 select FW_ARC64 685 select BOOT_ELF64 686 select CEVT_R4K 687 select CSRC_R4K 688 select DEFAULT_SGI_PARTITION 689 select DMA_NONCOHERENT 690 select GENERIC_ISA_DMA_SUPPORT_BROKEN 691 select IRQ_MIPS_CPU 692 select HW_HAS_EISA 693 select I8253 694 select I8259 695 select SGI_HAS_I8042 696 select SGI_HAS_INDYDOG 697 select SGI_HAS_HAL2 698 select SGI_HAS_SEEQ 699 select SGI_HAS_WD93 700 select SGI_HAS_ZILOG 701 select SWAP_IO_SPACE 702 select SYS_HAS_CPU_R10000 703 # 704 # Disable EARLY_PRINTK for now since it leads to overwritten prom 705 # memory during early boot on some machines. 706 # 707 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 708 # for a more details discussion 709 # 710 # select SYS_HAS_EARLY_PRINTK 711 select SYS_SUPPORTS_64BIT_KERNEL 712 select SYS_SUPPORTS_BIG_ENDIAN 713 select MIPS_L1_CACHE_SHIFT_7 714 help 715 This is the SGI Indigo2 with R10000 processor. To compile a Linux 716 kernel that runs on these, say Y here. 717 718config SGI_IP32 719 bool "SGI IP32 (O2)" 720 select FW_ARC 721 select FW_ARC32 722 select BOOT_ELF32 723 select CEVT_R4K 724 select CSRC_R4K 725 select DMA_NONCOHERENT 726 select HW_HAS_PCI 727 select IRQ_MIPS_CPU 728 select R5000_CPU_SCACHE 729 select RM7000_CPU_SCACHE 730 select SYS_HAS_CPU_R5000 731 select SYS_HAS_CPU_R10000 if BROKEN 732 select SYS_HAS_CPU_RM7000 733 select SYS_HAS_CPU_NEVADA 734 select SYS_SUPPORTS_64BIT_KERNEL 735 select SYS_SUPPORTS_BIG_ENDIAN 736 help 737 If you want this kernel to run on SGI O2 workstation, say Y here. 738 739config SIBYTE_CRHINE 740 bool "Sibyte BCM91120C-CRhine" 741 select BOOT_ELF32 742 select DMA_COHERENT 743 select SIBYTE_BCM1120 744 select SWAP_IO_SPACE 745 select SYS_HAS_CPU_SB1 746 select SYS_SUPPORTS_BIG_ENDIAN 747 select SYS_SUPPORTS_LITTLE_ENDIAN 748 749config SIBYTE_CARMEL 750 bool "Sibyte BCM91120x-Carmel" 751 select BOOT_ELF32 752 select DMA_COHERENT 753 select SIBYTE_BCM1120 754 select SWAP_IO_SPACE 755 select SYS_HAS_CPU_SB1 756 select SYS_SUPPORTS_BIG_ENDIAN 757 select SYS_SUPPORTS_LITTLE_ENDIAN 758 759config SIBYTE_CRHONE 760 bool "Sibyte BCM91125C-CRhone" 761 select BOOT_ELF32 762 select DMA_COHERENT 763 select SIBYTE_BCM1125 764 select SWAP_IO_SPACE 765 select SYS_HAS_CPU_SB1 766 select SYS_SUPPORTS_BIG_ENDIAN 767 select SYS_SUPPORTS_HIGHMEM 768 select SYS_SUPPORTS_LITTLE_ENDIAN 769 770config SIBYTE_RHONE 771 bool "Sibyte BCM91125E-Rhone" 772 select BOOT_ELF32 773 select DMA_COHERENT 774 select SIBYTE_BCM1125H 775 select SWAP_IO_SPACE 776 select SYS_HAS_CPU_SB1 777 select SYS_SUPPORTS_BIG_ENDIAN 778 select SYS_SUPPORTS_LITTLE_ENDIAN 779 780config SIBYTE_SWARM 781 bool "Sibyte BCM91250A-SWARM" 782 select BOOT_ELF32 783 select DMA_COHERENT 784 select HAVE_PATA_PLATFORM 785 select SIBYTE_SB1250 786 select SWAP_IO_SPACE 787 select SYS_HAS_CPU_SB1 788 select SYS_SUPPORTS_BIG_ENDIAN 789 select SYS_SUPPORTS_HIGHMEM 790 select SYS_SUPPORTS_LITTLE_ENDIAN 791 select ZONE_DMA32 if 64BIT 792 793config SIBYTE_LITTLESUR 794 bool "Sibyte BCM91250C2-LittleSur" 795 select BOOT_ELF32 796 select DMA_COHERENT 797 select HAVE_PATA_PLATFORM 798 select SIBYTE_SB1250 799 select SWAP_IO_SPACE 800 select SYS_HAS_CPU_SB1 801 select SYS_SUPPORTS_BIG_ENDIAN 802 select SYS_SUPPORTS_HIGHMEM 803 select SYS_SUPPORTS_LITTLE_ENDIAN 804 805config SIBYTE_SENTOSA 806 bool "Sibyte BCM91250E-Sentosa" 807 select BOOT_ELF32 808 select DMA_COHERENT 809 select SIBYTE_SB1250 810 select SWAP_IO_SPACE 811 select SYS_HAS_CPU_SB1 812 select SYS_SUPPORTS_BIG_ENDIAN 813 select SYS_SUPPORTS_LITTLE_ENDIAN 814 815config SIBYTE_BIGSUR 816 bool "Sibyte BCM91480B-BigSur" 817 select BOOT_ELF32 818 select DMA_COHERENT 819 select NR_CPUS_DEFAULT_4 820 select SIBYTE_BCM1x80 821 select SWAP_IO_SPACE 822 select SYS_HAS_CPU_SB1 823 select SYS_SUPPORTS_BIG_ENDIAN 824 select SYS_SUPPORTS_HIGHMEM 825 select SYS_SUPPORTS_LITTLE_ENDIAN 826 select ZONE_DMA32 if 64BIT 827 828config SNI_RM 829 bool "SNI RM200/300/400" 830 select FW_ARC if CPU_LITTLE_ENDIAN 831 select FW_ARC32 if CPU_LITTLE_ENDIAN 832 select FW_SNIPROM if CPU_BIG_ENDIAN 833 select ARCH_MAY_HAVE_PC_FDC 834 select BOOT_ELF32 835 select CEVT_R4K 836 select CSRC_R4K 837 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 838 select DMA_NONCOHERENT 839 select GENERIC_ISA_DMA 840 select HAVE_PCSPKR_PLATFORM 841 select HW_HAS_EISA 842 select HW_HAS_PCI 843 select IRQ_MIPS_CPU 844 select I8253 845 select I8259 846 select ISA 847 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 848 select SYS_HAS_CPU_R4X00 849 select SYS_HAS_CPU_R5000 850 select SYS_HAS_CPU_R10000 851 select R5000_CPU_SCACHE 852 select SYS_HAS_EARLY_PRINTK 853 select SYS_SUPPORTS_32BIT_KERNEL 854 select SYS_SUPPORTS_64BIT_KERNEL 855 select SYS_SUPPORTS_BIG_ENDIAN 856 select SYS_SUPPORTS_HIGHMEM 857 select SYS_SUPPORTS_LITTLE_ENDIAN 858 help 859 The SNI RM200/300/400 are MIPS-based machines manufactured by 860 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 861 Technology and now in turn merged with Fujitsu. Say Y here to 862 support this machine type. 863 864config MACH_TX39XX 865 bool "Toshiba TX39 series based machines" 866 867config MACH_TX49XX 868 bool "Toshiba TX49 series based machines" 869 870config MIKROTIK_RB532 871 bool "Mikrotik RB532 boards" 872 select CEVT_R4K 873 select CSRC_R4K 874 select DMA_NONCOHERENT 875 select HW_HAS_PCI 876 select IRQ_MIPS_CPU 877 select SYS_HAS_CPU_MIPS32_R1 878 select SYS_SUPPORTS_32BIT_KERNEL 879 select SYS_SUPPORTS_LITTLE_ENDIAN 880 select SWAP_IO_SPACE 881 select BOOT_RAW 882 select GPIOLIB 883 select MIPS_L1_CACHE_SHIFT_4 884 help 885 Support the Mikrotik(tm) RouterBoard 532 series, 886 based on the IDT RC32434 SoC. 887 888config CAVIUM_OCTEON_SOC 889 bool "Cavium Networks Octeon SoC based boards" 890 select CEVT_R4K 891 select ARCH_PHYS_ADDR_T_64BIT 892 select DMA_COHERENT 893 select SYS_SUPPORTS_64BIT_KERNEL 894 select SYS_SUPPORTS_BIG_ENDIAN 895 select EDAC_SUPPORT 896 select EDAC_ATOMIC_SCRUB 897 select SYS_SUPPORTS_LITTLE_ENDIAN 898 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN 899 select SYS_HAS_EARLY_PRINTK 900 select SYS_HAS_CPU_CAVIUM_OCTEON 901 select HW_HAS_PCI 902 select ZONE_DMA32 903 select HOLES_IN_ZONE 904 select GPIOLIB 905 select LIBFDT 906 select USE_OF 907 select ARCH_SPARSEMEM_ENABLE 908 select SYS_SUPPORTS_SMP 909 select NR_CPUS_DEFAULT_16 910 select BUILTIN_DTB 911 select MTD_COMPLEX_MAPPINGS 912 help 913 This option supports all of the Octeon reference boards from Cavium 914 Networks. It builds a kernel that dynamically determines the Octeon 915 CPU type and supports all known board reference implementations. 916 Some of the supported boards are: 917 EBT3000 918 EBH3000 919 EBH3100 920 Thunder 921 Kodama 922 Hikari 923 Say Y here for most Octeon reference boards. 924 925config NLM_XLR_BOARD 926 bool "Netlogic XLR/XLS based systems" 927 select BOOT_ELF32 928 select NLM_COMMON 929 select SYS_HAS_CPU_XLR 930 select SYS_SUPPORTS_SMP 931 select HW_HAS_PCI 932 select SWAP_IO_SPACE 933 select SYS_SUPPORTS_32BIT_KERNEL 934 select SYS_SUPPORTS_64BIT_KERNEL 935 select ARCH_PHYS_ADDR_T_64BIT 936 select SYS_SUPPORTS_BIG_ENDIAN 937 select SYS_SUPPORTS_HIGHMEM 938 select DMA_COHERENT 939 select NR_CPUS_DEFAULT_32 940 select CEVT_R4K 941 select CSRC_R4K 942 select IRQ_MIPS_CPU 943 select ZONE_DMA32 if 64BIT 944 select SYNC_R4K 945 select SYS_HAS_EARLY_PRINTK 946 select SYS_SUPPORTS_ZBOOT 947 select SYS_SUPPORTS_ZBOOT_UART16550 948 help 949 Support for systems based on Netlogic XLR and XLS processors. 950 Say Y here if you have a XLR or XLS based board. 951 952config NLM_XLP_BOARD 953 bool "Netlogic XLP based systems" 954 select BOOT_ELF32 955 select NLM_COMMON 956 select SYS_HAS_CPU_XLP 957 select SYS_SUPPORTS_SMP 958 select HW_HAS_PCI 959 select SYS_SUPPORTS_32BIT_KERNEL 960 select SYS_SUPPORTS_64BIT_KERNEL 961 select ARCH_PHYS_ADDR_T_64BIT 962 select GPIOLIB 963 select SYS_SUPPORTS_BIG_ENDIAN 964 select SYS_SUPPORTS_LITTLE_ENDIAN 965 select SYS_SUPPORTS_HIGHMEM 966 select DMA_COHERENT 967 select NR_CPUS_DEFAULT_32 968 select CEVT_R4K 969 select CSRC_R4K 970 select IRQ_MIPS_CPU 971 select ZONE_DMA32 if 64BIT 972 select SYNC_R4K 973 select SYS_HAS_EARLY_PRINTK 974 select USE_OF 975 select SYS_SUPPORTS_ZBOOT 976 select SYS_SUPPORTS_ZBOOT_UART16550 977 help 978 This board is based on Netlogic XLP Processor. 979 Say Y here if you have a XLP based board. 980 981config MIPS_PARAVIRT 982 bool "Para-Virtualized guest system" 983 select CEVT_R4K 984 select CSRC_R4K 985 select DMA_COHERENT 986 select SYS_SUPPORTS_64BIT_KERNEL 987 select SYS_SUPPORTS_32BIT_KERNEL 988 select SYS_SUPPORTS_BIG_ENDIAN 989 select SYS_SUPPORTS_SMP 990 select NR_CPUS_DEFAULT_4 991 select SYS_HAS_EARLY_PRINTK 992 select SYS_HAS_CPU_MIPS32_R2 993 select SYS_HAS_CPU_MIPS64_R2 994 select SYS_HAS_CPU_CAVIUM_OCTEON 995 select HW_HAS_PCI 996 select SWAP_IO_SPACE 997 help 998 This option supports guest running under ???? 999 1000endchoice 1001 1002source "arch/mips/alchemy/Kconfig" 1003source "arch/mips/ath25/Kconfig" 1004source "arch/mips/ath79/Kconfig" 1005source "arch/mips/bcm47xx/Kconfig" 1006source "arch/mips/bcm63xx/Kconfig" 1007source "arch/mips/bmips/Kconfig" 1008source "arch/mips/generic/Kconfig" 1009source "arch/mips/jazz/Kconfig" 1010source "arch/mips/jz4740/Kconfig" 1011source "arch/mips/lantiq/Kconfig" 1012source "arch/mips/lasat/Kconfig" 1013source "arch/mips/pic32/Kconfig" 1014source "arch/mips/pistachio/Kconfig" 1015source "arch/mips/pmcs-msp71xx/Kconfig" 1016source "arch/mips/ralink/Kconfig" 1017source "arch/mips/sgi-ip27/Kconfig" 1018source "arch/mips/sibyte/Kconfig" 1019source "arch/mips/txx9/Kconfig" 1020source "arch/mips/vr41xx/Kconfig" 1021source "arch/mips/cavium-octeon/Kconfig" 1022source "arch/mips/loongson32/Kconfig" 1023source "arch/mips/loongson64/Kconfig" 1024source "arch/mips/netlogic/Kconfig" 1025source "arch/mips/paravirt/Kconfig" 1026source "arch/mips/xilfpga/Kconfig" 1027 1028endmenu 1029 1030config RWSEM_GENERIC_SPINLOCK 1031 bool 1032 default y 1033 1034config RWSEM_XCHGADD_ALGORITHM 1035 bool 1036 1037config ARCH_HAS_ILOG2_U32 1038 bool 1039 default n 1040 1041config ARCH_HAS_ILOG2_U64 1042 bool 1043 default n 1044 1045config GENERIC_HWEIGHT 1046 bool 1047 default y 1048 1049config GENERIC_CALIBRATE_DELAY 1050 bool 1051 default y 1052 1053config SCHED_OMIT_FRAME_POINTER 1054 bool 1055 default y 1056 1057# 1058# Select some configuration options automatically based on user selections. 1059# 1060config FW_ARC 1061 bool 1062 1063config ARCH_MAY_HAVE_PC_FDC 1064 bool 1065 1066config BOOT_RAW 1067 bool 1068 1069config CEVT_BCM1480 1070 bool 1071 1072config CEVT_DS1287 1073 bool 1074 1075config CEVT_GT641XX 1076 bool 1077 1078config CEVT_R4K 1079 bool 1080 1081config CEVT_SB1250 1082 bool 1083 1084config CEVT_TXX9 1085 bool 1086 1087config CSRC_BCM1480 1088 bool 1089 1090config CSRC_IOASIC 1091 bool 1092 1093config CSRC_R4K 1094 bool 1095 1096config CSRC_SB1250 1097 bool 1098 1099config MIPS_CLOCK_VSYSCALL 1100 def_bool CSRC_R4K || CLKSRC_MIPS_GIC 1101 1102config GPIO_TXX9 1103 select GPIOLIB 1104 bool 1105 1106config FW_CFE 1107 bool 1108 1109config ARCH_DMA_ADDR_T_64BIT 1110 def_bool (HIGHMEM && ARCH_PHYS_ADDR_T_64BIT) || 64BIT 1111 1112config ARCH_SUPPORTS_UPROBES 1113 bool 1114 1115config DMA_MAYBE_COHERENT 1116 select DMA_NONCOHERENT 1117 bool 1118 1119config DMA_PERDEV_COHERENT 1120 bool 1121 select DMA_MAYBE_COHERENT 1122 1123config DMA_COHERENT 1124 bool 1125 1126config DMA_NONCOHERENT 1127 bool 1128 select NEED_DMA_MAP_STATE 1129 1130config NEED_DMA_MAP_STATE 1131 bool 1132 1133config SYS_HAS_EARLY_PRINTK 1134 bool 1135 1136config SYS_SUPPORTS_HOTPLUG_CPU 1137 bool 1138 1139config MIPS_BONITO64 1140 bool 1141 1142config MIPS_MSC 1143 bool 1144 1145config MIPS_NILE4 1146 bool 1147 1148config SYNC_R4K 1149 bool 1150 1151config MIPS_MACHINE 1152 def_bool n 1153 1154config NO_IOPORT_MAP 1155 def_bool n 1156 1157config GENERIC_CSUM 1158 bool 1159 1160config GENERIC_ISA_DMA 1161 bool 1162 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1163 select ISA_DMA_API 1164 1165config GENERIC_ISA_DMA_SUPPORT_BROKEN 1166 bool 1167 select GENERIC_ISA_DMA 1168 1169config ISA_DMA_API 1170 bool 1171 1172config HOLES_IN_ZONE 1173 bool 1174 1175config SYS_SUPPORTS_RELOCATABLE 1176 bool 1177 help 1178 Selected if the platform supports relocating the kernel. 1179 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF 1180 to allow access to command line and entropy sources. 1181 1182# 1183# Endianness selection. Sufficiently obscure so many users don't know what to 1184# answer,so we try hard to limit the available choices. Also the use of a 1185# choice statement should be more obvious to the user. 1186# 1187choice 1188 prompt "Endianness selection" 1189 help 1190 Some MIPS machines can be configured for either little or big endian 1191 byte order. These modes require different kernels and a different 1192 Linux distribution. In general there is one preferred byteorder for a 1193 particular system but some systems are just as commonly used in the 1194 one or the other endianness. 1195 1196config CPU_BIG_ENDIAN 1197 bool "Big endian" 1198 depends on SYS_SUPPORTS_BIG_ENDIAN 1199 1200config CPU_LITTLE_ENDIAN 1201 bool "Little endian" 1202 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1203 1204endchoice 1205 1206config EXPORT_UASM 1207 bool 1208 1209config SYS_SUPPORTS_APM_EMULATION 1210 bool 1211 1212config SYS_SUPPORTS_BIG_ENDIAN 1213 bool 1214 1215config SYS_SUPPORTS_LITTLE_ENDIAN 1216 bool 1217 1218config SYS_SUPPORTS_HUGETLBFS 1219 bool 1220 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT 1221 default y 1222 1223config MIPS_HUGE_TLB_SUPPORT 1224 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1225 1226config IRQ_CPU_RM7K 1227 bool 1228 1229config IRQ_MSP_SLP 1230 bool 1231 1232config IRQ_MSP_CIC 1233 bool 1234 1235config IRQ_TXX9 1236 bool 1237 1238config IRQ_GT641XX 1239 bool 1240 1241config PCI_GT64XXX_PCI0 1242 bool 1243 1244config NO_EXCEPT_FILL 1245 bool 1246 1247config SOC_EMMA2RH 1248 bool 1249 select CEVT_R4K 1250 select CSRC_R4K 1251 select DMA_NONCOHERENT 1252 select IRQ_MIPS_CPU 1253 select SWAP_IO_SPACE 1254 select SYS_HAS_CPU_R5500 1255 select SYS_SUPPORTS_32BIT_KERNEL 1256 select SYS_SUPPORTS_64BIT_KERNEL 1257 select SYS_SUPPORTS_BIG_ENDIAN 1258 1259config SOC_PNX833X 1260 bool 1261 select CEVT_R4K 1262 select CSRC_R4K 1263 select IRQ_MIPS_CPU 1264 select DMA_NONCOHERENT 1265 select SYS_HAS_CPU_MIPS32_R2 1266 select SYS_SUPPORTS_32BIT_KERNEL 1267 select SYS_SUPPORTS_LITTLE_ENDIAN 1268 select SYS_SUPPORTS_BIG_ENDIAN 1269 select SYS_SUPPORTS_MIPS16 1270 select CPU_MIPSR2_IRQ_VI 1271 1272config SOC_PNX8335 1273 bool 1274 select SOC_PNX833X 1275 1276config MIPS_SPRAM 1277 bool 1278 1279config SWAP_IO_SPACE 1280 bool 1281 1282config SGI_HAS_INDYDOG 1283 bool 1284 1285config SGI_HAS_HAL2 1286 bool 1287 1288config SGI_HAS_SEEQ 1289 bool 1290 1291config SGI_HAS_WD93 1292 bool 1293 1294config SGI_HAS_ZILOG 1295 bool 1296 1297config SGI_HAS_I8042 1298 bool 1299 1300config DEFAULT_SGI_PARTITION 1301 bool 1302 1303config FW_ARC32 1304 bool 1305 1306config FW_SNIPROM 1307 bool 1308 1309config BOOT_ELF32 1310 bool 1311 1312config MIPS_L1_CACHE_SHIFT_4 1313 bool 1314 1315config MIPS_L1_CACHE_SHIFT_5 1316 bool 1317 1318config MIPS_L1_CACHE_SHIFT_6 1319 bool 1320 1321config MIPS_L1_CACHE_SHIFT_7 1322 bool 1323 1324config MIPS_L1_CACHE_SHIFT 1325 int 1326 default "7" if MIPS_L1_CACHE_SHIFT_7 1327 default "6" if MIPS_L1_CACHE_SHIFT_6 1328 default "5" if MIPS_L1_CACHE_SHIFT_5 1329 default "4" if MIPS_L1_CACHE_SHIFT_4 1330 default "5" 1331 1332config HAVE_STD_PC_SERIAL_PORT 1333 bool 1334 1335config ARC_CONSOLE 1336 bool "ARC console support" 1337 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1338 1339config ARC_MEMORY 1340 bool 1341 depends on MACH_JAZZ || SNI_RM || SGI_IP32 1342 default y 1343 1344config ARC_PROMLIB 1345 bool 1346 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 1347 default y 1348 1349config FW_ARC64 1350 bool 1351 1352config BOOT_ELF64 1353 bool 1354 1355menu "CPU selection" 1356 1357choice 1358 prompt "CPU type" 1359 default CPU_R4X00 1360 1361config CPU_LOONGSON3 1362 bool "Loongson 3 CPU" 1363 depends on SYS_HAS_CPU_LOONGSON3 1364 select CPU_SUPPORTS_64BIT_KERNEL 1365 select CPU_SUPPORTS_HIGHMEM 1366 select CPU_SUPPORTS_HUGEPAGES 1367 select WEAK_ORDERING 1368 select WEAK_REORDERING_BEYOND_LLSC 1369 select MIPS_PGD_C0_CONTEXT 1370 select GPIOLIB 1371 help 1372 The Loongson 3 processor implements the MIPS64R2 instruction 1373 set with many extensions. 1374 1375config LOONGSON3_ENHANCEMENT 1376 bool "New Loongson 3 CPU Enhancements" 1377 default n 1378 select CPU_MIPSR2 1379 select CPU_HAS_PREFETCH 1380 depends on CPU_LOONGSON3 1381 help 1382 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A 1383 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1384 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User 1385 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1386 Fast TLB refill support, etc. 1387 1388 This option enable those enhancements which are not probed at run 1389 time. If you want a generic kernel to run on all Loongson 3 machines, 1390 please say 'N' here. If you want a high-performance kernel to run on 1391 new Loongson 3 machines only, please say 'Y' here. 1392 1393config CPU_LOONGSON2E 1394 bool "Loongson 2E" 1395 depends on SYS_HAS_CPU_LOONGSON2E 1396 select CPU_LOONGSON2 1397 help 1398 The Loongson 2E processor implements the MIPS III instruction set 1399 with many extensions. 1400 1401 It has an internal FPGA northbridge, which is compatible to 1402 bonito64. 1403 1404config CPU_LOONGSON2F 1405 bool "Loongson 2F" 1406 depends on SYS_HAS_CPU_LOONGSON2F 1407 select CPU_LOONGSON2 1408 select GPIOLIB 1409 help 1410 The Loongson 2F processor implements the MIPS III instruction set 1411 with many extensions. 1412 1413 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1414 have a similar programming interface with FPGA northbridge used in 1415 Loongson2E. 1416 1417config CPU_LOONGSON1B 1418 bool "Loongson 1B" 1419 depends on SYS_HAS_CPU_LOONGSON1B 1420 select CPU_LOONGSON1 1421 select LEDS_GPIO_REGISTER 1422 help 1423 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1424 release 2 instruction set. 1425 1426config CPU_LOONGSON1C 1427 bool "Loongson 1C" 1428 depends on SYS_HAS_CPU_LOONGSON1C 1429 select CPU_LOONGSON1 1430 select ARCH_WANT_OPTIONAL_GPIOLIB 1431 select LEDS_GPIO_REGISTER 1432 help 1433 The Loongson 1C is a 32-bit SoC, which implements the MIPS32 1434 release 2 instruction set. 1435 1436config CPU_MIPS32_R1 1437 bool "MIPS32 Release 1" 1438 depends on SYS_HAS_CPU_MIPS32_R1 1439 select CPU_HAS_PREFETCH 1440 select CPU_SUPPORTS_32BIT_KERNEL 1441 select CPU_SUPPORTS_HIGHMEM 1442 help 1443 Choose this option to build a kernel for release 1 or later of the 1444 MIPS32 architecture. Most modern embedded systems with a 32-bit 1445 MIPS processor are based on a MIPS32 processor. If you know the 1446 specific type of processor in your system, choose those that one 1447 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1448 Release 2 of the MIPS32 architecture is available since several 1449 years so chances are you even have a MIPS32 Release 2 processor 1450 in which case you should choose CPU_MIPS32_R2 instead for better 1451 performance. 1452 1453config CPU_MIPS32_R2 1454 bool "MIPS32 Release 2" 1455 depends on SYS_HAS_CPU_MIPS32_R2 1456 select CPU_HAS_PREFETCH 1457 select CPU_SUPPORTS_32BIT_KERNEL 1458 select CPU_SUPPORTS_HIGHMEM 1459 select CPU_SUPPORTS_MSA 1460 select HAVE_KVM 1461 help 1462 Choose this option to build a kernel for release 2 or later of the 1463 MIPS32 architecture. Most modern embedded systems with a 32-bit 1464 MIPS processor are based on a MIPS32 processor. If you know the 1465 specific type of processor in your system, choose those that one 1466 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1467 1468config CPU_MIPS32_R6 1469 bool "MIPS32 Release 6" 1470 depends on SYS_HAS_CPU_MIPS32_R6 1471 select CPU_HAS_PREFETCH 1472 select CPU_SUPPORTS_32BIT_KERNEL 1473 select CPU_SUPPORTS_HIGHMEM 1474 select CPU_SUPPORTS_MSA 1475 select GENERIC_CSUM 1476 select HAVE_KVM 1477 select MIPS_O32_FP64_SUPPORT 1478 help 1479 Choose this option to build a kernel for release 6 or later of the 1480 MIPS32 architecture. New MIPS processors, starting with the Warrior 1481 family, are based on a MIPS32r6 processor. If you own an older 1482 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1483 1484config CPU_MIPS64_R1 1485 bool "MIPS64 Release 1" 1486 depends on SYS_HAS_CPU_MIPS64_R1 1487 select CPU_HAS_PREFETCH 1488 select CPU_SUPPORTS_32BIT_KERNEL 1489 select CPU_SUPPORTS_64BIT_KERNEL 1490 select CPU_SUPPORTS_HIGHMEM 1491 select CPU_SUPPORTS_HUGEPAGES 1492 help 1493 Choose this option to build a kernel for release 1 or later of the 1494 MIPS64 architecture. Many modern embedded systems with a 64-bit 1495 MIPS processor are based on a MIPS64 processor. If you know the 1496 specific type of processor in your system, choose those that one 1497 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1498 Release 2 of the MIPS64 architecture is available since several 1499 years so chances are you even have a MIPS64 Release 2 processor 1500 in which case you should choose CPU_MIPS64_R2 instead for better 1501 performance. 1502 1503config CPU_MIPS64_R2 1504 bool "MIPS64 Release 2" 1505 depends on SYS_HAS_CPU_MIPS64_R2 1506 select CPU_HAS_PREFETCH 1507 select CPU_SUPPORTS_32BIT_KERNEL 1508 select CPU_SUPPORTS_64BIT_KERNEL 1509 select CPU_SUPPORTS_HIGHMEM 1510 select CPU_SUPPORTS_HUGEPAGES 1511 select CPU_SUPPORTS_MSA 1512 select HAVE_KVM 1513 help 1514 Choose this option to build a kernel for release 2 or later of the 1515 MIPS64 architecture. Many modern embedded systems with a 64-bit 1516 MIPS processor are based on a MIPS64 processor. If you know the 1517 specific type of processor in your system, choose those that one 1518 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1519 1520config CPU_MIPS64_R6 1521 bool "MIPS64 Release 6" 1522 depends on SYS_HAS_CPU_MIPS64_R6 1523 select CPU_HAS_PREFETCH 1524 select CPU_SUPPORTS_32BIT_KERNEL 1525 select CPU_SUPPORTS_64BIT_KERNEL 1526 select CPU_SUPPORTS_HIGHMEM 1527 select CPU_SUPPORTS_MSA 1528 select GENERIC_CSUM 1529 select MIPS_O32_FP64_SUPPORT if MIPS32_O32 1530 select HAVE_KVM 1531 help 1532 Choose this option to build a kernel for release 6 or later of the 1533 MIPS64 architecture. New MIPS processors, starting with the Warrior 1534 family, are based on a MIPS64r6 processor. If you own an older 1535 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1536 1537config CPU_R3000 1538 bool "R3000" 1539 depends on SYS_HAS_CPU_R3000 1540 select CPU_HAS_WB 1541 select CPU_SUPPORTS_32BIT_KERNEL 1542 select CPU_SUPPORTS_HIGHMEM 1543 help 1544 Please make sure to pick the right CPU type. Linux/MIPS is not 1545 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1546 *not* work on R4000 machines and vice versa. However, since most 1547 of the supported machines have an R4000 (or similar) CPU, R4x00 1548 might be a safe bet. If the resulting kernel does not work, 1549 try to recompile with R3000. 1550 1551config CPU_TX39XX 1552 bool "R39XX" 1553 depends on SYS_HAS_CPU_TX39XX 1554 select CPU_SUPPORTS_32BIT_KERNEL 1555 1556config CPU_VR41XX 1557 bool "R41xx" 1558 depends on SYS_HAS_CPU_VR41XX 1559 select CPU_SUPPORTS_32BIT_KERNEL 1560 select CPU_SUPPORTS_64BIT_KERNEL 1561 help 1562 The options selects support for the NEC VR4100 series of processors. 1563 Only choose this option if you have one of these processors as a 1564 kernel built with this option will not run on any other type of 1565 processor or vice versa. 1566 1567config CPU_R4300 1568 bool "R4300" 1569 depends on SYS_HAS_CPU_R4300 1570 select CPU_SUPPORTS_32BIT_KERNEL 1571 select CPU_SUPPORTS_64BIT_KERNEL 1572 help 1573 MIPS Technologies R4300-series processors. 1574 1575config CPU_R4X00 1576 bool "R4x00" 1577 depends on SYS_HAS_CPU_R4X00 1578 select CPU_SUPPORTS_32BIT_KERNEL 1579 select CPU_SUPPORTS_64BIT_KERNEL 1580 select CPU_SUPPORTS_HUGEPAGES 1581 help 1582 MIPS Technologies R4000-series processors other than 4300, including 1583 the R4000, R4400, R4600, and 4700. 1584 1585config CPU_TX49XX 1586 bool "R49XX" 1587 depends on SYS_HAS_CPU_TX49XX 1588 select CPU_HAS_PREFETCH 1589 select CPU_SUPPORTS_32BIT_KERNEL 1590 select CPU_SUPPORTS_64BIT_KERNEL 1591 select CPU_SUPPORTS_HUGEPAGES 1592 1593config CPU_R5000 1594 bool "R5000" 1595 depends on SYS_HAS_CPU_R5000 1596 select CPU_SUPPORTS_32BIT_KERNEL 1597 select CPU_SUPPORTS_64BIT_KERNEL 1598 select CPU_SUPPORTS_HUGEPAGES 1599 help 1600 MIPS Technologies R5000-series processors other than the Nevada. 1601 1602config CPU_R5432 1603 bool "R5432" 1604 depends on SYS_HAS_CPU_R5432 1605 select CPU_SUPPORTS_32BIT_KERNEL 1606 select CPU_SUPPORTS_64BIT_KERNEL 1607 select CPU_SUPPORTS_HUGEPAGES 1608 1609config CPU_R5500 1610 bool "R5500" 1611 depends on SYS_HAS_CPU_R5500 1612 select CPU_SUPPORTS_32BIT_KERNEL 1613 select CPU_SUPPORTS_64BIT_KERNEL 1614 select CPU_SUPPORTS_HUGEPAGES 1615 help 1616 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1617 instruction set. 1618 1619config CPU_R6000 1620 bool "R6000" 1621 depends on SYS_HAS_CPU_R6000 1622 select CPU_SUPPORTS_32BIT_KERNEL 1623 help 1624 MIPS Technologies R6000 and R6000A series processors. Note these 1625 processors are extremely rare and the support for them is incomplete. 1626 1627config CPU_NEVADA 1628 bool "RM52xx" 1629 depends on SYS_HAS_CPU_NEVADA 1630 select CPU_SUPPORTS_32BIT_KERNEL 1631 select CPU_SUPPORTS_64BIT_KERNEL 1632 select CPU_SUPPORTS_HUGEPAGES 1633 help 1634 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1635 1636config CPU_R8000 1637 bool "R8000" 1638 depends on SYS_HAS_CPU_R8000 1639 select CPU_HAS_PREFETCH 1640 select CPU_SUPPORTS_64BIT_KERNEL 1641 help 1642 MIPS Technologies R8000 processors. Note these processors are 1643 uncommon and the support for them is incomplete. 1644 1645config CPU_R10000 1646 bool "R10000" 1647 depends on SYS_HAS_CPU_R10000 1648 select CPU_HAS_PREFETCH 1649 select CPU_SUPPORTS_32BIT_KERNEL 1650 select CPU_SUPPORTS_64BIT_KERNEL 1651 select CPU_SUPPORTS_HIGHMEM 1652 select CPU_SUPPORTS_HUGEPAGES 1653 help 1654 MIPS Technologies R10000-series processors. 1655 1656config CPU_RM7000 1657 bool "RM7000" 1658 depends on SYS_HAS_CPU_RM7000 1659 select CPU_HAS_PREFETCH 1660 select CPU_SUPPORTS_32BIT_KERNEL 1661 select CPU_SUPPORTS_64BIT_KERNEL 1662 select CPU_SUPPORTS_HIGHMEM 1663 select CPU_SUPPORTS_HUGEPAGES 1664 1665config CPU_SB1 1666 bool "SB1" 1667 depends on SYS_HAS_CPU_SB1 1668 select CPU_SUPPORTS_32BIT_KERNEL 1669 select CPU_SUPPORTS_64BIT_KERNEL 1670 select CPU_SUPPORTS_HIGHMEM 1671 select CPU_SUPPORTS_HUGEPAGES 1672 select WEAK_ORDERING 1673 1674config CPU_CAVIUM_OCTEON 1675 bool "Cavium Octeon processor" 1676 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1677 select CPU_HAS_PREFETCH 1678 select CPU_SUPPORTS_64BIT_KERNEL 1679 select WEAK_ORDERING 1680 select CPU_SUPPORTS_HIGHMEM 1681 select CPU_SUPPORTS_HUGEPAGES 1682 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1683 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1684 select MIPS_L1_CACHE_SHIFT_7 1685 help 1686 The Cavium Octeon processor is a highly integrated chip containing 1687 many ethernet hardware widgets for networking tasks. The processor 1688 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1689 Full details can be found at http://www.caviumnetworks.com. 1690 1691config CPU_BMIPS 1692 bool "Broadcom BMIPS" 1693 depends on SYS_HAS_CPU_BMIPS 1694 select CPU_MIPS32 1695 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1696 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1697 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1698 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1699 select CPU_SUPPORTS_32BIT_KERNEL 1700 select DMA_NONCOHERENT 1701 select IRQ_MIPS_CPU 1702 select SWAP_IO_SPACE 1703 select WEAK_ORDERING 1704 select CPU_SUPPORTS_HIGHMEM 1705 select CPU_HAS_PREFETCH 1706 help 1707 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1708 1709config CPU_XLR 1710 bool "Netlogic XLR SoC" 1711 depends on SYS_HAS_CPU_XLR 1712 select CPU_SUPPORTS_32BIT_KERNEL 1713 select CPU_SUPPORTS_64BIT_KERNEL 1714 select CPU_SUPPORTS_HIGHMEM 1715 select CPU_SUPPORTS_HUGEPAGES 1716 select WEAK_ORDERING 1717 select WEAK_REORDERING_BEYOND_LLSC 1718 help 1719 Netlogic Microsystems XLR/XLS processors. 1720 1721config CPU_XLP 1722 bool "Netlogic XLP SoC" 1723 depends on SYS_HAS_CPU_XLP 1724 select CPU_SUPPORTS_32BIT_KERNEL 1725 select CPU_SUPPORTS_64BIT_KERNEL 1726 select CPU_SUPPORTS_HIGHMEM 1727 select WEAK_ORDERING 1728 select WEAK_REORDERING_BEYOND_LLSC 1729 select CPU_HAS_PREFETCH 1730 select CPU_MIPSR2 1731 select CPU_SUPPORTS_HUGEPAGES 1732 select MIPS_ASID_BITS_VARIABLE 1733 help 1734 Netlogic Microsystems XLP processors. 1735endchoice 1736 1737config CPU_MIPS32_3_5_FEATURES 1738 bool "MIPS32 Release 3.5 Features" 1739 depends on SYS_HAS_CPU_MIPS32_R3_5 1740 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6 1741 help 1742 Choose this option to build a kernel for release 2 or later of the 1743 MIPS32 architecture including features from the 3.5 release such as 1744 support for Enhanced Virtual Addressing (EVA). 1745 1746config CPU_MIPS32_3_5_EVA 1747 bool "Enhanced Virtual Addressing (EVA)" 1748 depends on CPU_MIPS32_3_5_FEATURES 1749 select EVA 1750 default y 1751 help 1752 Choose this option if you want to enable the Enhanced Virtual 1753 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1754 One of its primary benefits is an increase in the maximum size 1755 of lowmem (up to 3GB). If unsure, say 'N' here. 1756 1757config CPU_MIPS32_R5_FEATURES 1758 bool "MIPS32 Release 5 Features" 1759 depends on SYS_HAS_CPU_MIPS32_R5 1760 depends on CPU_MIPS32_R2 1761 help 1762 Choose this option to build a kernel for release 2 or later of the 1763 MIPS32 architecture including features from release 5 such as 1764 support for Extended Physical Addressing (XPA). 1765 1766config CPU_MIPS32_R5_XPA 1767 bool "Extended Physical Addressing (XPA)" 1768 depends on CPU_MIPS32_R5_FEATURES 1769 depends on !EVA 1770 depends on !PAGE_SIZE_4KB 1771 depends on SYS_SUPPORTS_HIGHMEM 1772 select XPA 1773 select HIGHMEM 1774 select ARCH_PHYS_ADDR_T_64BIT 1775 default n 1776 help 1777 Choose this option if you want to enable the Extended Physical 1778 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1779 benefit is to increase physical addressing equal to or greater 1780 than 40 bits. Note that this has the side effect of turning on 1781 64-bit addressing which in turn makes the PTEs 64-bit in size. 1782 If unsure, say 'N' here. 1783 1784if CPU_LOONGSON2F 1785config CPU_NOP_WORKAROUNDS 1786 bool 1787 1788config CPU_JUMP_WORKAROUNDS 1789 bool 1790 1791config CPU_LOONGSON2F_WORKAROUNDS 1792 bool "Loongson 2F Workarounds" 1793 default y 1794 select CPU_NOP_WORKAROUNDS 1795 select CPU_JUMP_WORKAROUNDS 1796 help 1797 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1798 require workarounds. Without workarounds the system may hang 1799 unexpectedly. For more information please refer to the gas 1800 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1801 1802 Loongson 2F03 and later have fixed these issues and no workarounds 1803 are needed. The workarounds have no significant side effect on them 1804 but may decrease the performance of the system so this option should 1805 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1806 systems. 1807 1808 If unsure, please say Y. 1809endif # CPU_LOONGSON2F 1810 1811config SYS_SUPPORTS_ZBOOT 1812 bool 1813 select HAVE_KERNEL_GZIP 1814 select HAVE_KERNEL_BZIP2 1815 select HAVE_KERNEL_LZ4 1816 select HAVE_KERNEL_LZMA 1817 select HAVE_KERNEL_LZO 1818 select HAVE_KERNEL_XZ 1819 1820config SYS_SUPPORTS_ZBOOT_UART16550 1821 bool 1822 select SYS_SUPPORTS_ZBOOT 1823 1824config SYS_SUPPORTS_ZBOOT_UART_PROM 1825 bool 1826 select SYS_SUPPORTS_ZBOOT 1827 1828config CPU_LOONGSON2 1829 bool 1830 select CPU_SUPPORTS_32BIT_KERNEL 1831 select CPU_SUPPORTS_64BIT_KERNEL 1832 select CPU_SUPPORTS_HIGHMEM 1833 select CPU_SUPPORTS_HUGEPAGES 1834 1835config CPU_LOONGSON1 1836 bool 1837 select CPU_MIPS32 1838 select CPU_MIPSR2 1839 select CPU_HAS_PREFETCH 1840 select CPU_SUPPORTS_32BIT_KERNEL 1841 select CPU_SUPPORTS_HIGHMEM 1842 select CPU_SUPPORTS_CPUFREQ 1843 1844config CPU_BMIPS32_3300 1845 select SMP_UP if SMP 1846 bool 1847 1848config CPU_BMIPS4350 1849 bool 1850 select SYS_SUPPORTS_SMP 1851 select SYS_SUPPORTS_HOTPLUG_CPU 1852 1853config CPU_BMIPS4380 1854 bool 1855 select MIPS_L1_CACHE_SHIFT_6 1856 select SYS_SUPPORTS_SMP 1857 select SYS_SUPPORTS_HOTPLUG_CPU 1858 select CPU_HAS_RIXI 1859 1860config CPU_BMIPS5000 1861 bool 1862 select MIPS_CPU_SCACHE 1863 select MIPS_L1_CACHE_SHIFT_7 1864 select SYS_SUPPORTS_SMP 1865 select SYS_SUPPORTS_HOTPLUG_CPU 1866 select CPU_HAS_RIXI 1867 1868config SYS_HAS_CPU_LOONGSON3 1869 bool 1870 select CPU_SUPPORTS_CPUFREQ 1871 select CPU_HAS_RIXI 1872 1873config SYS_HAS_CPU_LOONGSON2E 1874 bool 1875 1876config SYS_HAS_CPU_LOONGSON2F 1877 bool 1878 select CPU_SUPPORTS_CPUFREQ 1879 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1880 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1881 1882config SYS_HAS_CPU_LOONGSON1B 1883 bool 1884 1885config SYS_HAS_CPU_LOONGSON1C 1886 bool 1887 1888config SYS_HAS_CPU_MIPS32_R1 1889 bool 1890 1891config SYS_HAS_CPU_MIPS32_R2 1892 bool 1893 1894config SYS_HAS_CPU_MIPS32_R3_5 1895 bool 1896 1897config SYS_HAS_CPU_MIPS32_R5 1898 bool 1899 1900config SYS_HAS_CPU_MIPS32_R6 1901 bool 1902 1903config SYS_HAS_CPU_MIPS64_R1 1904 bool 1905 1906config SYS_HAS_CPU_MIPS64_R2 1907 bool 1908 1909config SYS_HAS_CPU_MIPS64_R6 1910 bool 1911 1912config SYS_HAS_CPU_R3000 1913 bool 1914 1915config SYS_HAS_CPU_TX39XX 1916 bool 1917 1918config SYS_HAS_CPU_VR41XX 1919 bool 1920 1921config SYS_HAS_CPU_R4300 1922 bool 1923 1924config SYS_HAS_CPU_R4X00 1925 bool 1926 1927config SYS_HAS_CPU_TX49XX 1928 bool 1929 1930config SYS_HAS_CPU_R5000 1931 bool 1932 1933config SYS_HAS_CPU_R5432 1934 bool 1935 1936config SYS_HAS_CPU_R5500 1937 bool 1938 1939config SYS_HAS_CPU_R6000 1940 bool 1941 1942config SYS_HAS_CPU_NEVADA 1943 bool 1944 1945config SYS_HAS_CPU_R8000 1946 bool 1947 1948config SYS_HAS_CPU_R10000 1949 bool 1950 1951config SYS_HAS_CPU_RM7000 1952 bool 1953 1954config SYS_HAS_CPU_SB1 1955 bool 1956 1957config SYS_HAS_CPU_CAVIUM_OCTEON 1958 bool 1959 1960config SYS_HAS_CPU_BMIPS 1961 bool 1962 1963config SYS_HAS_CPU_BMIPS32_3300 1964 bool 1965 select SYS_HAS_CPU_BMIPS 1966 1967config SYS_HAS_CPU_BMIPS4350 1968 bool 1969 select SYS_HAS_CPU_BMIPS 1970 1971config SYS_HAS_CPU_BMIPS4380 1972 bool 1973 select SYS_HAS_CPU_BMIPS 1974 1975config SYS_HAS_CPU_BMIPS5000 1976 bool 1977 select SYS_HAS_CPU_BMIPS 1978 1979config SYS_HAS_CPU_XLR 1980 bool 1981 1982config SYS_HAS_CPU_XLP 1983 bool 1984 1985config MIPS_MALTA_PM 1986 depends on MIPS_MALTA 1987 depends on PCI 1988 bool 1989 default y 1990 1991# 1992# CPU may reorder R->R, R->W, W->R, W->W 1993# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 1994# 1995config WEAK_ORDERING 1996 bool 1997 1998# 1999# CPU may reorder reads and writes beyond LL/SC 2000# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 2001# 2002config WEAK_REORDERING_BEYOND_LLSC 2003 bool 2004endmenu 2005 2006# 2007# These two indicate any level of the MIPS32 and MIPS64 architecture 2008# 2009config CPU_MIPS32 2010 bool 2011 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6 2012 2013config CPU_MIPS64 2014 bool 2015 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 2016 2017# 2018# These two indicate the revision of the architecture, either Release 1 or Release 2 2019# 2020config CPU_MIPSR1 2021 bool 2022 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 2023 2024config CPU_MIPSR2 2025 bool 2026 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2027 select CPU_HAS_RIXI 2028 select MIPS_SPRAM 2029 2030config CPU_MIPSR6 2031 bool 2032 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2033 select CPU_HAS_RIXI 2034 select HAVE_ARCH_BITREVERSE 2035 select MIPS_ASID_BITS_VARIABLE 2036 select MIPS_SPRAM 2037 2038config EVA 2039 bool 2040 2041config XPA 2042 bool 2043 2044config SYS_SUPPORTS_32BIT_KERNEL 2045 bool 2046config SYS_SUPPORTS_64BIT_KERNEL 2047 bool 2048config CPU_SUPPORTS_32BIT_KERNEL 2049 bool 2050config CPU_SUPPORTS_64BIT_KERNEL 2051 bool 2052config CPU_SUPPORTS_CPUFREQ 2053 bool 2054config CPU_SUPPORTS_ADDRWINCFG 2055 bool 2056config CPU_SUPPORTS_HUGEPAGES 2057 bool 2058config CPU_SUPPORTS_UNCACHED_ACCELERATED 2059 bool 2060config MIPS_PGD_C0_CONTEXT 2061 bool 2062 default y if 64BIT && CPU_MIPSR2 && !CPU_XLP 2063 2064# 2065# Set to y for ptrace access to watch registers. 2066# 2067config HARDWARE_WATCHPOINTS 2068 bool 2069 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2070 2071menu "Kernel type" 2072 2073choice 2074 prompt "Kernel code model" 2075 help 2076 You should only select this option if you have a workload that 2077 actually benefits from 64-bit processing or if your machine has 2078 large memory. You will only be presented a single option in this 2079 menu if your system does not support both 32-bit and 64-bit kernels. 2080 2081config 32BIT 2082 bool "32-bit kernel" 2083 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2084 select TRAD_SIGNALS 2085 help 2086 Select this option if you want to build a 32-bit kernel. 2087 2088config 64BIT 2089 bool "64-bit kernel" 2090 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2091 help 2092 Select this option if you want to build a 64-bit kernel. 2093 2094endchoice 2095 2096config KVM_GUEST 2097 bool "KVM Guest Kernel" 2098 depends on BROKEN_ON_SMP 2099 help 2100 Select this option if building a guest kernel for KVM (Trap & Emulate) 2101 mode. 2102 2103config KVM_GUEST_TIMER_FREQ 2104 int "Count/Compare Timer Frequency (MHz)" 2105 depends on KVM_GUEST 2106 default 100 2107 help 2108 Set this to non-zero if building a guest kernel for KVM to skip RTC 2109 emulation when determining guest CPU Frequency. Instead, the guest's 2110 timer frequency is specified directly. 2111 2112config MIPS_VA_BITS_48 2113 bool "48 bits virtual memory" 2114 depends on 64BIT 2115 help 2116 Support a maximum at least 48 bits of application virtual memory. 2117 Default is 40 bits or less, depending on the CPU. 2118 This option result in a small memory overhead for page tables. 2119 This option is only supported with 16k and 64k page sizes. 2120 If unsure, say N. 2121 2122choice 2123 prompt "Kernel page size" 2124 default PAGE_SIZE_4KB 2125 2126config PAGE_SIZE_4KB 2127 bool "4kB" 2128 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3 2129 depends on !MIPS_VA_BITS_48 2130 help 2131 This option select the standard 4kB Linux page size. On some 2132 R3000-family processors this is the only available page size. Using 2133 4kB page size will minimize memory consumption and is therefore 2134 recommended for low memory systems. 2135 2136config PAGE_SIZE_8KB 2137 bool "8kB" 2138 depends on CPU_R8000 || CPU_CAVIUM_OCTEON 2139 depends on !MIPS_VA_BITS_48 2140 help 2141 Using 8kB page size will result in higher performance kernel at 2142 the price of higher memory consumption. This option is available 2143 only on R8000 and cnMIPS processors. Note that you will need a 2144 suitable Linux distribution to support this. 2145 2146config PAGE_SIZE_16KB 2147 bool "16kB" 2148 depends on !CPU_R3000 && !CPU_TX39XX 2149 help 2150 Using 16kB page size will result in higher performance kernel at 2151 the price of higher memory consumption. This option is available on 2152 all non-R3000 family processors. Note that you will need a suitable 2153 Linux distribution to support this. 2154 2155config PAGE_SIZE_32KB 2156 bool "32kB" 2157 depends on CPU_CAVIUM_OCTEON 2158 depends on !MIPS_VA_BITS_48 2159 help 2160 Using 32kB page size will result in higher performance kernel at 2161 the price of higher memory consumption. This option is available 2162 only on cnMIPS cores. Note that you will need a suitable Linux 2163 distribution to support this. 2164 2165config PAGE_SIZE_64KB 2166 bool "64kB" 2167 depends on !CPU_R3000 && !CPU_TX39XX && !CPU_R6000 2168 help 2169 Using 64kB page size will result in higher performance kernel at 2170 the price of higher memory consumption. This option is available on 2171 all non-R3000 family processor. Not that at the time of this 2172 writing this option is still high experimental. 2173 2174endchoice 2175 2176config FORCE_MAX_ZONEORDER 2177 int "Maximum zone order" 2178 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2179 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2180 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2181 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2182 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2183 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2184 range 11 64 2185 default "11" 2186 help 2187 The kernel memory allocator divides physically contiguous memory 2188 blocks into "zones", where each zone is a power of two number of 2189 pages. This option selects the largest power of two that the kernel 2190 keeps in the memory allocator. If you need to allocate very large 2191 blocks of physically contiguous memory, then you may need to 2192 increase this value. 2193 2194 This config option is actually maximum order plus one. For example, 2195 a value of 11 means that the largest free memory block is 2^10 pages. 2196 2197 The page size is not necessarily 4KB. Keep this in mind 2198 when choosing a value for this option. 2199 2200config BOARD_SCACHE 2201 bool 2202 2203config IP22_CPU_SCACHE 2204 bool 2205 select BOARD_SCACHE 2206 2207# 2208# Support for a MIPS32 / MIPS64 style S-caches 2209# 2210config MIPS_CPU_SCACHE 2211 bool 2212 select BOARD_SCACHE 2213 2214config R5000_CPU_SCACHE 2215 bool 2216 select BOARD_SCACHE 2217 2218config RM7000_CPU_SCACHE 2219 bool 2220 select BOARD_SCACHE 2221 2222config SIBYTE_DMA_PAGEOPS 2223 bool "Use DMA to clear/copy pages" 2224 depends on CPU_SB1 2225 help 2226 Instead of using the CPU to zero and copy pages, use a Data Mover 2227 channel. These DMA channels are otherwise unused by the standard 2228 SiByte Linux port. Seems to give a small performance benefit. 2229 2230config CPU_HAS_PREFETCH 2231 bool 2232 2233config CPU_GENERIC_DUMP_TLB 2234 bool 2235 default y if !(CPU_R3000 || CPU_R6000 || CPU_R8000 || CPU_TX39XX) 2236 2237config CPU_R4K_FPU 2238 bool 2239 default y if !(CPU_R3000 || CPU_R6000 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 2240 2241config CPU_R4K_CACHE_TLB 2242 bool 2243 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 2244 2245config MIPS_MT_SMP 2246 bool "MIPS MT SMP support (1 TC on each available VPE)" 2247 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 2248 select CPU_MIPSR2_IRQ_VI 2249 select CPU_MIPSR2_IRQ_EI 2250 select SYNC_R4K 2251 select MIPS_MT 2252 select SMP 2253 select SMP_UP 2254 select SYS_SUPPORTS_SMP 2255 select SYS_SUPPORTS_SCHED_SMT 2256 select MIPS_PERF_SHARED_TC_COUNTERS 2257 help 2258 This is a kernel model which is known as SMVP. This is supported 2259 on cores with the MT ASE and uses the available VPEs to implement 2260 virtual processors which supports SMP. This is equivalent to the 2261 Intel Hyperthreading feature. For further information go to 2262 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2263 2264config MIPS_MT 2265 bool 2266 2267config SCHED_SMT 2268 bool "SMT (multithreading) scheduler support" 2269 depends on SYS_SUPPORTS_SCHED_SMT 2270 default n 2271 help 2272 SMT scheduler support improves the CPU scheduler's decision making 2273 when dealing with MIPS MT enabled cores at a cost of slightly 2274 increased overhead in some places. If unsure say N here. 2275 2276config SYS_SUPPORTS_SCHED_SMT 2277 bool 2278 2279config SYS_SUPPORTS_MULTITHREADING 2280 bool 2281 2282config MIPS_MT_FPAFF 2283 bool "Dynamic FPU affinity for FP-intensive threads" 2284 default y 2285 depends on MIPS_MT_SMP 2286 2287config MIPSR2_TO_R6_EMULATOR 2288 bool "MIPS R2-to-R6 emulator" 2289 depends on CPU_MIPSR6 && !SMP 2290 default y 2291 help 2292 Choose this option if you want to run non-R6 MIPS userland code. 2293 Even if you say 'Y' here, the emulator will still be disabled by 2294 default. You can enable it using the 'mipsr2emu' kernel option. 2295 The only reason this is a build-time option is to save ~14K from the 2296 final kernel image. 2297comment "MIPS R2-to-R6 emulator is only available for UP kernels" 2298 depends on SMP && CPU_MIPSR6 2299 2300config MIPS_VPE_LOADER 2301 bool "VPE loader support." 2302 depends on SYS_SUPPORTS_MULTITHREADING && MODULES 2303 select CPU_MIPSR2_IRQ_VI 2304 select CPU_MIPSR2_IRQ_EI 2305 select MIPS_MT 2306 help 2307 Includes a loader for loading an elf relocatable object 2308 onto another VPE and running it. 2309 2310config MIPS_VPE_LOADER_CMP 2311 bool 2312 default "y" 2313 depends on MIPS_VPE_LOADER && MIPS_CMP 2314 2315config MIPS_VPE_LOADER_MT 2316 bool 2317 default "y" 2318 depends on MIPS_VPE_LOADER && !MIPS_CMP 2319 2320config MIPS_VPE_LOADER_TOM 2321 bool "Load VPE program into memory hidden from linux" 2322 depends on MIPS_VPE_LOADER 2323 default y 2324 help 2325 The loader can use memory that is present but has been hidden from 2326 Linux using the kernel command line option "mem=xxMB". It's up to 2327 you to ensure the amount you put in the option and the space your 2328 program requires is less or equal to the amount physically present. 2329 2330config MIPS_VPE_APSP_API 2331 bool "Enable support for AP/SP API (RTLX)" 2332 depends on MIPS_VPE_LOADER 2333 help 2334 2335config MIPS_VPE_APSP_API_CMP 2336 bool 2337 default "y" 2338 depends on MIPS_VPE_APSP_API && MIPS_CMP 2339 2340config MIPS_VPE_APSP_API_MT 2341 bool 2342 default "y" 2343 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2344 2345config MIPS_CMP 2346 bool "MIPS CMP framework support (DEPRECATED)" 2347 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2348 select SMP 2349 select SYNC_R4K 2350 select SYS_SUPPORTS_SMP 2351 select WEAK_ORDERING 2352 default n 2353 help 2354 Select this if you are using a bootloader which implements the "CMP 2355 framework" protocol (ie. YAMON) and want your kernel to make use of 2356 its ability to start secondary CPUs. 2357 2358 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2359 instead of this. 2360 2361config MIPS_CPS 2362 bool "MIPS Coherent Processing System support" 2363 depends on SYS_SUPPORTS_MIPS_CPS 2364 select MIPS_CM 2365 select MIPS_CPC 2366 select MIPS_CPS_PM if HOTPLUG_CPU 2367 select SMP 2368 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2369 select SYS_SUPPORTS_HOTPLUG_CPU 2370 select SYS_SUPPORTS_SMP 2371 select WEAK_ORDERING 2372 help 2373 Select this if you wish to run an SMP kernel across multiple cores 2374 within a MIPS Coherent Processing System. When this option is 2375 enabled the kernel will probe for other cores and boot them with 2376 no external assistance. It is safe to enable this when hardware 2377 support is unavailable. 2378 2379config MIPS_CPS_PM 2380 depends on MIPS_CPS 2381 select MIPS_CPC 2382 bool 2383 2384config MIPS_CM 2385 bool 2386 2387config MIPS_CPC 2388 bool 2389 2390config SB1_PASS_2_WORKAROUNDS 2391 bool 2392 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2393 default y 2394 2395config SB1_PASS_2_1_WORKAROUNDS 2396 bool 2397 depends on CPU_SB1 && CPU_SB1_PASS_2 2398 default y 2399 2400 2401config ARCH_PHYS_ADDR_T_64BIT 2402 bool 2403 2404choice 2405 prompt "SmartMIPS or microMIPS ASE support" 2406 2407config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2408 bool "None" 2409 help 2410 Select this if you want neither microMIPS nor SmartMIPS support 2411 2412config CPU_HAS_SMARTMIPS 2413 depends on SYS_SUPPORTS_SMARTMIPS 2414 bool "SmartMIPS" 2415 help 2416 SmartMIPS is a extension of the MIPS32 architecture aimed at 2417 increased security at both hardware and software level for 2418 smartcards. Enabling this option will allow proper use of the 2419 SmartMIPS instructions by Linux applications. However a kernel with 2420 this option will not work on a MIPS core without SmartMIPS core. If 2421 you don't know you probably don't have SmartMIPS and should say N 2422 here. 2423 2424config CPU_MICROMIPS 2425 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2426 bool "microMIPS" 2427 help 2428 When this option is enabled the kernel will be built using the 2429 microMIPS ISA 2430 2431endchoice 2432 2433config CPU_HAS_MSA 2434 bool "Support for the MIPS SIMD Architecture" 2435 depends on CPU_SUPPORTS_MSA 2436 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2437 help 2438 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2439 and a set of SIMD instructions to operate on them. When this option 2440 is enabled the kernel will support allocating & switching MSA 2441 vector register contexts. If you know that your kernel will only be 2442 running on CPUs which do not support MSA or that your userland will 2443 not be making use of it then you may wish to say N here to reduce 2444 the size & complexity of your kernel. 2445 2446 If unsure, say Y. 2447 2448config CPU_HAS_WB 2449 bool 2450 2451config XKS01 2452 bool 2453 2454config CPU_HAS_RIXI 2455 bool 2456 2457# 2458# Vectored interrupt mode is an R2 feature 2459# 2460config CPU_MIPSR2_IRQ_VI 2461 bool 2462 2463# 2464# Extended interrupt mode is an R2 feature 2465# 2466config CPU_MIPSR2_IRQ_EI 2467 bool 2468 2469config CPU_HAS_SYNC 2470 bool 2471 depends on !CPU_R3000 2472 default y 2473 2474# 2475# CPU non-features 2476# 2477config CPU_DADDI_WORKAROUNDS 2478 bool 2479 2480config CPU_R4000_WORKAROUNDS 2481 bool 2482 select CPU_R4400_WORKAROUNDS 2483 2484config CPU_R4400_WORKAROUNDS 2485 bool 2486 2487config MIPS_ASID_SHIFT 2488 int 2489 default 6 if CPU_R3000 || CPU_TX39XX 2490 default 4 if CPU_R8000 2491 default 0 2492 2493config MIPS_ASID_BITS 2494 int 2495 default 0 if MIPS_ASID_BITS_VARIABLE 2496 default 6 if CPU_R3000 || CPU_TX39XX 2497 default 8 2498 2499config MIPS_ASID_BITS_VARIABLE 2500 bool 2501 2502# 2503# - Highmem only makes sense for the 32-bit kernel. 2504# - The current highmem code will only work properly on physically indexed 2505# caches such as R3000, SB1, R7000 or those that look like they're virtually 2506# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2507# moment we protect the user and offer the highmem option only on machines 2508# where it's known to be safe. This will not offer highmem on a few systems 2509# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2510# indexed CPUs but we're playing safe. 2511# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2512# know they might have memory configurations that could make use of highmem 2513# support. 2514# 2515config HIGHMEM 2516 bool "High Memory Support" 2517 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2518 2519config CPU_SUPPORTS_HIGHMEM 2520 bool 2521 2522config SYS_SUPPORTS_HIGHMEM 2523 bool 2524 2525config SYS_SUPPORTS_SMARTMIPS 2526 bool 2527 2528config SYS_SUPPORTS_MICROMIPS 2529 bool 2530 2531config SYS_SUPPORTS_MIPS16 2532 bool 2533 help 2534 This option must be set if a kernel might be executed on a MIPS16- 2535 enabled CPU even if MIPS16 is not actually being used. In other 2536 words, it makes the kernel MIPS16-tolerant. 2537 2538config CPU_SUPPORTS_MSA 2539 bool 2540 2541config ARCH_FLATMEM_ENABLE 2542 def_bool y 2543 depends on !NUMA && !CPU_LOONGSON2 2544 2545config ARCH_DISCONTIGMEM_ENABLE 2546 bool 2547 default y if SGI_IP27 2548 help 2549 Say Y to support efficient handling of discontiguous physical memory, 2550 for architectures which are either NUMA (Non-Uniform Memory Access) 2551 or have huge holes in the physical address space for other reasons. 2552 See <file:Documentation/vm/numa> for more. 2553 2554config ARCH_SPARSEMEM_ENABLE 2555 bool 2556 select SPARSEMEM_STATIC 2557 2558config NUMA 2559 bool "NUMA Support" 2560 depends on SYS_SUPPORTS_NUMA 2561 help 2562 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2563 Access). This option improves performance on systems with more 2564 than two nodes; on two node systems it is generally better to 2565 leave it disabled; on single node systems disable this option 2566 disabled. 2567 2568config SYS_SUPPORTS_NUMA 2569 bool 2570 2571config RELOCATABLE 2572 bool "Relocatable kernel" 2573 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6) 2574 help 2575 This builds a kernel image that retains relocation information 2576 so it can be loaded someplace besides the default 1MB. 2577 The relocations make the kernel binary about 15% larger, 2578 but are discarded at runtime 2579 2580config RELOCATION_TABLE_SIZE 2581 hex "Relocation table size" 2582 depends on RELOCATABLE 2583 range 0x0 0x01000000 2584 default "0x00100000" 2585 ---help--- 2586 A table of relocation data will be appended to the kernel binary 2587 and parsed at boot to fix up the relocated kernel. 2588 2589 This option allows the amount of space reserved for the table to be 2590 adjusted, although the default of 1Mb should be ok in most cases. 2591 2592 The build will fail and a valid size suggested if this is too small. 2593 2594 If unsure, leave at the default value. 2595 2596config RANDOMIZE_BASE 2597 bool "Randomize the address of the kernel image" 2598 depends on RELOCATABLE 2599 ---help--- 2600 Randomizes the physical and virtual address at which the 2601 kernel image is loaded, as a security feature that 2602 deters exploit attempts relying on knowledge of the location 2603 of kernel internals. 2604 2605 Entropy is generated using any coprocessor 0 registers available. 2606 2607 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2608 2609 If unsure, say N. 2610 2611config RANDOMIZE_BASE_MAX_OFFSET 2612 hex "Maximum kASLR offset" if EXPERT 2613 depends on RANDOMIZE_BASE 2614 range 0x0 0x40000000 if EVA || 64BIT 2615 range 0x0 0x08000000 2616 default "0x01000000" 2617 ---help--- 2618 When kASLR is active, this provides the maximum offset that will 2619 be applied to the kernel image. It should be set according to the 2620 amount of physical RAM available in the target system minus 2621 PHYSICAL_START and must be a power of 2. 2622 2623 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2624 EVA or 64-bit. The default is 16Mb. 2625 2626config NODES_SHIFT 2627 int 2628 default "6" 2629 depends on NEED_MULTIPLE_NODES 2630 2631config HW_PERF_EVENTS 2632 bool "Enable hardware performance counter support for perf events" 2633 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3) 2634 default y 2635 help 2636 Enable hardware performance counter support for perf events. If 2637 disabled, perf events will use software events only. 2638 2639source "mm/Kconfig" 2640 2641config SMP 2642 bool "Multi-Processing support" 2643 depends on SYS_SUPPORTS_SMP 2644 help 2645 This enables support for systems with more than one CPU. If you have 2646 a system with only one CPU, say N. If you have a system with more 2647 than one CPU, say Y. 2648 2649 If you say N here, the kernel will run on uni- and multiprocessor 2650 machines, but will use only one CPU of a multiprocessor machine. If 2651 you say Y here, the kernel will run on many, but not all, 2652 uniprocessor machines. On a uniprocessor machine, the kernel 2653 will run faster if you say N here. 2654 2655 People using multiprocessor machines who say Y here should also say 2656 Y to "Enhanced Real Time Clock Support", below. 2657 2658 See also the SMP-HOWTO available at 2659 <http://www.tldp.org/docs.html#howto>. 2660 2661 If you don't know what to do here, say N. 2662 2663config HOTPLUG_CPU 2664 bool "Support for hot-pluggable CPUs" 2665 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 2666 help 2667 Say Y here to allow turning CPUs off and on. CPUs can be 2668 controlled through /sys/devices/system/cpu. 2669 (Note: power management support will enable this option 2670 automatically on SMP systems. ) 2671 Say N if you want to disable CPU hotplug. 2672 2673config SMP_UP 2674 bool 2675 2676config SYS_SUPPORTS_MIPS_CMP 2677 bool 2678 2679config SYS_SUPPORTS_MIPS_CPS 2680 bool 2681 2682config SYS_SUPPORTS_SMP 2683 bool 2684 2685config NR_CPUS_DEFAULT_4 2686 bool 2687 2688config NR_CPUS_DEFAULT_8 2689 bool 2690 2691config NR_CPUS_DEFAULT_16 2692 bool 2693 2694config NR_CPUS_DEFAULT_32 2695 bool 2696 2697config NR_CPUS_DEFAULT_64 2698 bool 2699 2700config NR_CPUS 2701 int "Maximum number of CPUs (2-256)" 2702 range 2 256 2703 depends on SMP 2704 default "4" if NR_CPUS_DEFAULT_4 2705 default "8" if NR_CPUS_DEFAULT_8 2706 default "16" if NR_CPUS_DEFAULT_16 2707 default "32" if NR_CPUS_DEFAULT_32 2708 default "64" if NR_CPUS_DEFAULT_64 2709 help 2710 This allows you to specify the maximum number of CPUs which this 2711 kernel will support. The maximum supported value is 32 for 32-bit 2712 kernel and 64 for 64-bit kernels; the minimum value which makes 2713 sense is 1 for Qemu (useful only for kernel debugging purposes) 2714 and 2 for all others. 2715 2716 This is purely to save memory - each supported CPU adds 2717 approximately eight kilobytes to the kernel image. For best 2718 performance should round up your number of processors to the next 2719 power of two. 2720 2721config MIPS_PERF_SHARED_TC_COUNTERS 2722 bool 2723 2724# 2725# Timer Interrupt Frequency Configuration 2726# 2727 2728choice 2729 prompt "Timer frequency" 2730 default HZ_250 2731 help 2732 Allows the configuration of the timer frequency. 2733 2734 config HZ_24 2735 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2736 2737 config HZ_48 2738 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2739 2740 config HZ_100 2741 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2742 2743 config HZ_128 2744 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2745 2746 config HZ_250 2747 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2748 2749 config HZ_256 2750 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2751 2752 config HZ_1000 2753 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2754 2755 config HZ_1024 2756 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2757 2758endchoice 2759 2760config SYS_SUPPORTS_24HZ 2761 bool 2762 2763config SYS_SUPPORTS_48HZ 2764 bool 2765 2766config SYS_SUPPORTS_100HZ 2767 bool 2768 2769config SYS_SUPPORTS_128HZ 2770 bool 2771 2772config SYS_SUPPORTS_250HZ 2773 bool 2774 2775config SYS_SUPPORTS_256HZ 2776 bool 2777 2778config SYS_SUPPORTS_1000HZ 2779 bool 2780 2781config SYS_SUPPORTS_1024HZ 2782 bool 2783 2784config SYS_SUPPORTS_ARBIT_HZ 2785 bool 2786 default y if !SYS_SUPPORTS_24HZ && \ 2787 !SYS_SUPPORTS_48HZ && \ 2788 !SYS_SUPPORTS_100HZ && \ 2789 !SYS_SUPPORTS_128HZ && \ 2790 !SYS_SUPPORTS_250HZ && \ 2791 !SYS_SUPPORTS_256HZ && \ 2792 !SYS_SUPPORTS_1000HZ && \ 2793 !SYS_SUPPORTS_1024HZ 2794 2795config HZ 2796 int 2797 default 24 if HZ_24 2798 default 48 if HZ_48 2799 default 100 if HZ_100 2800 default 128 if HZ_128 2801 default 250 if HZ_250 2802 default 256 if HZ_256 2803 default 1000 if HZ_1000 2804 default 1024 if HZ_1024 2805 2806config SCHED_HRTICK 2807 def_bool HIGH_RES_TIMERS 2808 2809source "kernel/Kconfig.preempt" 2810 2811config KEXEC 2812 bool "Kexec system call" 2813 select KEXEC_CORE 2814 help 2815 kexec is a system call that implements the ability to shutdown your 2816 current kernel, and to start another kernel. It is like a reboot 2817 but it is independent of the system firmware. And like a reboot 2818 you can start any kernel with it, not just Linux. 2819 2820 The name comes from the similarity to the exec system call. 2821 2822 It is an ongoing process to be certain the hardware in a machine 2823 is properly shutdown, so do not be surprised if this code does not 2824 initially work for you. As of this writing the exact hardware 2825 interface is strongly in flux, so no good recommendation can be 2826 made. 2827 2828config CRASH_DUMP 2829 bool "Kernel crash dumps" 2830 help 2831 Generate crash dump after being started by kexec. 2832 This should be normally only set in special crash dump kernels 2833 which are loaded in the main kernel with kexec-tools into 2834 a specially reserved region and then later executed after 2835 a crash by kdump/kexec. The crash dump kernel must be compiled 2836 to a memory address not used by the main kernel or firmware using 2837 PHYSICAL_START. 2838 2839config PHYSICAL_START 2840 hex "Physical address where the kernel is loaded" 2841 default "0xffffffff84000000" if 64BIT 2842 default "0x84000000" if 32BIT 2843 depends on CRASH_DUMP 2844 help 2845 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2846 If you plan to use kernel for capturing the crash dump change 2847 this value to start of the reserved region (the "X" value as 2848 specified in the "crashkernel=YM@XM" command line boot parameter 2849 passed to the panic-ed kernel). 2850 2851config SECCOMP 2852 bool "Enable seccomp to safely compute untrusted bytecode" 2853 depends on PROC_FS 2854 default y 2855 help 2856 This kernel feature is useful for number crunching applications 2857 that may need to compute untrusted bytecode during their 2858 execution. By using pipes or other transports made available to 2859 the process as file descriptors supporting the read/write 2860 syscalls, it's possible to isolate those applications in 2861 their own address space using seccomp. Once seccomp is 2862 enabled via /proc/<pid>/seccomp, it cannot be disabled 2863 and the task is only allowed to execute a few safe syscalls 2864 defined by each seccomp mode. 2865 2866 If unsure, say Y. Only embedded should say N here. 2867 2868config MIPS_O32_FP64_SUPPORT 2869 bool "Support for O32 binaries using 64-bit FP" 2870 depends on 32BIT || MIPS32_O32 2871 help 2872 When this is enabled, the kernel will support use of 64-bit floating 2873 point registers with binaries using the O32 ABI along with the 2874 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 2875 32-bit MIPS systems this support is at the cost of increasing the 2876 size and complexity of the compiled FPU emulator. Thus if you are 2877 running a MIPS32 system and know that none of your userland binaries 2878 will require 64-bit floating point, you may wish to reduce the size 2879 of your kernel & potentially improve FP emulation performance by 2880 saying N here. 2881 2882 Although binutils currently supports use of this flag the details 2883 concerning its effect upon the O32 ABI in userland are still being 2884 worked on. In order to avoid userland becoming dependant upon current 2885 behaviour before the details have been finalised, this option should 2886 be considered experimental and only enabled by those working upon 2887 said details. 2888 2889 If unsure, say N. 2890 2891config USE_OF 2892 bool 2893 select OF 2894 select OF_EARLY_FLATTREE 2895 select IRQ_DOMAIN 2896 2897config BUILTIN_DTB 2898 bool 2899 2900choice 2901 prompt "Kernel appended dtb support" if USE_OF 2902 default MIPS_NO_APPENDED_DTB 2903 2904 config MIPS_NO_APPENDED_DTB 2905 bool "None" 2906 help 2907 Do not enable appended dtb support. 2908 2909 config MIPS_ELF_APPENDED_DTB 2910 bool "vmlinux" 2911 help 2912 With this option, the boot code will look for a device tree binary 2913 DTB) included in the vmlinux ELF section .appended_dtb. By default 2914 it is empty and the DTB can be appended using binutils command 2915 objcopy: 2916 2917 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 2918 2919 This is meant as a backward compatiblity convenience for those 2920 systems with a bootloader that can't be upgraded to accommodate 2921 the documented boot protocol using a device tree. 2922 2923 config MIPS_RAW_APPENDED_DTB 2924 bool "vmlinux.bin or vmlinuz.bin" 2925 help 2926 With this option, the boot code will look for a device tree binary 2927 DTB) appended to raw vmlinux.bin or vmlinuz.bin. 2928 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 2929 2930 This is meant as a backward compatibility convenience for those 2931 systems with a bootloader that can't be upgraded to accommodate 2932 the documented boot protocol using a device tree. 2933 2934 Beware that there is very little in terms of protection against 2935 this option being confused by leftover garbage in memory that might 2936 look like a DTB header after a reboot if no actual DTB is appended 2937 to vmlinux.bin. Do not leave this option active in a production kernel 2938 if you don't intend to always append a DTB. 2939endchoice 2940 2941choice 2942 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 2943 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 2944 !MIPS_MALTA && \ 2945 !CAVIUM_OCTEON_SOC 2946 default MIPS_CMDLINE_FROM_BOOTLOADER 2947 2948 config MIPS_CMDLINE_FROM_DTB 2949 depends on USE_OF 2950 bool "Dtb kernel arguments if available" 2951 2952 config MIPS_CMDLINE_DTB_EXTEND 2953 depends on USE_OF 2954 bool "Extend dtb kernel arguments with bootloader arguments" 2955 2956 config MIPS_CMDLINE_FROM_BOOTLOADER 2957 bool "Bootloader kernel arguments if available" 2958 2959 config MIPS_CMDLINE_BUILTIN_EXTEND 2960 depends on CMDLINE_BOOL 2961 bool "Extend builtin kernel arguments with bootloader arguments" 2962endchoice 2963 2964endmenu 2965 2966config LOCKDEP_SUPPORT 2967 bool 2968 default y 2969 2970config STACKTRACE_SUPPORT 2971 bool 2972 default y 2973 2974config HAVE_LATENCYTOP_SUPPORT 2975 bool 2976 default y 2977 2978config PGTABLE_LEVELS 2979 int 2980 default 3 if 64BIT && !PAGE_SIZE_64KB 2981 default 2 2982 2983source "init/Kconfig" 2984 2985source "kernel/Kconfig.freezer" 2986 2987menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 2988 2989config HW_HAS_EISA 2990 bool 2991config HW_HAS_PCI 2992 bool 2993 2994config PCI 2995 bool "Support for PCI controller" 2996 depends on HW_HAS_PCI 2997 select PCI_DOMAINS 2998 help 2999 Find out whether you have a PCI motherboard. PCI is the name of a 3000 bus system, i.e. the way the CPU talks to the other stuff inside 3001 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, 3002 say Y, otherwise N. 3003 3004config HT_PCI 3005 bool "Support for HT-linked PCI" 3006 default y 3007 depends on CPU_LOONGSON3 3008 select PCI 3009 select PCI_DOMAINS 3010 help 3011 Loongson family machines use Hyper-Transport bus for inter-core 3012 connection and device connection. The PCI bus is a subordinate 3013 linked at HT. Choose Y for Loongson-3 based machines. 3014 3015config PCI_DOMAINS 3016 bool 3017 3018config PCI_DOMAINS_GENERIC 3019 bool 3020 3021config PCI_DRIVERS_GENERIC 3022 select PCI_DOMAINS_GENERIC if PCI_DOMAINS 3023 bool 3024 3025config PCI_DRIVERS_LEGACY 3026 def_bool !PCI_DRIVERS_GENERIC 3027 select NO_GENERIC_PCI_IOPORT_MAP 3028 3029source "drivers/pci/Kconfig" 3030 3031# 3032# ISA support is now enabled via select. Too many systems still have the one 3033# or other ISA chip on the board that users don't know about so don't expect 3034# users to choose the right thing ... 3035# 3036config ISA 3037 bool 3038 3039config EISA 3040 bool "EISA support" 3041 depends on HW_HAS_EISA 3042 select ISA 3043 select GENERIC_ISA_DMA 3044 ---help--- 3045 The Extended Industry Standard Architecture (EISA) bus was 3046 developed as an open alternative to the IBM MicroChannel bus. 3047 3048 The EISA bus provided some of the features of the IBM MicroChannel 3049 bus while maintaining backward compatibility with cards made for 3050 the older ISA bus. The EISA bus saw limited use between 1988 and 3051 1995 when it was made obsolete by the PCI bus. 3052 3053 Say Y here if you are building a kernel for an EISA-based machine. 3054 3055 Otherwise, say N. 3056 3057source "drivers/eisa/Kconfig" 3058 3059config TC 3060 bool "TURBOchannel support" 3061 depends on MACH_DECSTATION 3062 help 3063 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3064 processors. TURBOchannel programming specifications are available 3065 at: 3066 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3067 and: 3068 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3069 Linux driver support status is documented at: 3070 <http://www.linux-mips.org/wiki/DECstation> 3071 3072config MMU 3073 bool 3074 default y 3075 3076config I8253 3077 bool 3078 select CLKSRC_I8253 3079 select CLKEVT_I8253 3080 select MIPS_EXTERNAL_TIMER 3081 3082config ZONE_DMA 3083 bool 3084 3085config ZONE_DMA32 3086 bool 3087 3088source "drivers/pcmcia/Kconfig" 3089 3090config RAPIDIO 3091 tristate "RapidIO support" 3092 depends on PCI 3093 default n 3094 help 3095 If you say Y here, the kernel will include drivers and 3096 infrastructure code to support RapidIO interconnect devices. 3097 3098source "drivers/rapidio/Kconfig" 3099 3100endmenu 3101 3102menu "Executable file formats" 3103 3104source "fs/Kconfig.binfmt" 3105 3106config TRAD_SIGNALS 3107 bool 3108 3109config MIPS32_COMPAT 3110 bool 3111 3112config COMPAT 3113 bool 3114 3115config SYSVIPC_COMPAT 3116 bool 3117 3118config MIPS32_O32 3119 bool "Kernel support for o32 binaries" 3120 depends on 64BIT 3121 select ARCH_WANT_OLD_COMPAT_IPC 3122 select COMPAT 3123 select MIPS32_COMPAT 3124 select SYSVIPC_COMPAT if SYSVIPC 3125 help 3126 Select this option if you want to run o32 binaries. These are pure 3127 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3128 existing binaries are in this format. 3129 3130 If unsure, say Y. 3131 3132config MIPS32_N32 3133 bool "Kernel support for n32 binaries" 3134 depends on 64BIT 3135 select COMPAT 3136 select MIPS32_COMPAT 3137 select SYSVIPC_COMPAT if SYSVIPC 3138 help 3139 Select this option if you want to run n32 binaries. These are 3140 64-bit binaries using 32-bit quantities for addressing and certain 3141 data that would normally be 64-bit. They are used in special 3142 cases. 3143 3144 If unsure, say N. 3145 3146config BINFMT_ELF32 3147 bool 3148 default y if MIPS32_O32 || MIPS32_N32 3149 select ELFCORE 3150 3151endmenu 3152 3153menu "Power management options" 3154 3155config ARCH_HIBERNATION_POSSIBLE 3156 def_bool y 3157 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3158 3159config ARCH_SUSPEND_POSSIBLE 3160 def_bool y 3161 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3162 3163source "kernel/power/Kconfig" 3164 3165endmenu 3166 3167config MIPS_EXTERNAL_TIMER 3168 bool 3169 3170menu "CPU Power Management" 3171 3172if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3173source "drivers/cpufreq/Kconfig" 3174endif 3175 3176source "drivers/cpuidle/Kconfig" 3177 3178endmenu 3179 3180source "net/Kconfig" 3181 3182source "drivers/Kconfig" 3183 3184source "drivers/firmware/Kconfig" 3185 3186source "fs/Kconfig" 3187 3188source "arch/mips/Kconfig.debug" 3189 3190source "security/Kconfig" 3191 3192source "crypto/Kconfig" 3193 3194source "lib/Kconfig" 3195 3196source "arch/mips/kvm/Kconfig" 3197