1# SPDX-License-Identifier: GPL-2.0 2config MIPS 3 bool 4 default y 5 select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT 6 select ARCH_CLOCKSOURCE_DATA 7 select ARCH_DISCARD_MEMBLOCK 8 select ARCH_HAS_ELF_RANDOMIZE 9 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST 10 select ARCH_HAS_UBSAN_SANITIZE_ALL 11 select ARCH_SUPPORTS_UPROBES 12 select ARCH_USE_BUILTIN_BSWAP 13 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT 14 select ARCH_USE_QUEUED_RWLOCKS 15 select ARCH_USE_QUEUED_SPINLOCKS 16 select ARCH_WANT_IPC_PARSE_VERSION 17 select BUILDTIME_EXTABLE_SORT 18 select CLONE_BACKWARDS 19 select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1) 20 select CPU_PM if CPU_IDLE 21 select GENERIC_ATOMIC64 if !64BIT 22 select GENERIC_CLOCKEVENTS 23 select GENERIC_CMOS_UPDATE 24 select GENERIC_CPU_AUTOPROBE 25 select GENERIC_IOMAP 26 select GENERIC_IRQ_PROBE 27 select GENERIC_IRQ_SHOW 28 select GENERIC_ISA_DMA if EISA 29 select GENERIC_LIB_ASHLDI3 30 select GENERIC_LIB_ASHRDI3 31 select GENERIC_LIB_CMPDI2 32 select GENERIC_LIB_LSHRDI3 33 select GENERIC_LIB_UCMPDI2 34 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC 35 select GENERIC_SMP_IDLE_THREAD 36 select GENERIC_TIME_VSYSCALL 37 select HANDLE_DOMAIN_IRQ 38 select HAVE_ARCH_COMPILER_H 39 select HAVE_ARCH_JUMP_LABEL 40 select HAVE_ARCH_KGDB 41 select HAVE_ARCH_MMAP_RND_BITS if MMU 42 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT 43 select HAVE_ARCH_SECCOMP_FILTER 44 select HAVE_ARCH_TRACEHOOK 45 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT 46 select HAVE_CBPF_JIT if (!64BIT && !CPU_MICROMIPS) 47 select HAVE_EBPF_JIT if (64BIT && !CPU_MICROMIPS) 48 select HAVE_CONTEXT_TRACKING 49 select HAVE_COPY_THREAD_TLS 50 select HAVE_C_RECORDMCOUNT 51 select HAVE_DEBUG_KMEMLEAK 52 select HAVE_DEBUG_STACKOVERFLOW 53 select HAVE_DMA_CONTIGUOUS 54 select HAVE_DYNAMIC_FTRACE 55 select HAVE_EXIT_THREAD 56 select HAVE_FTRACE_MCOUNT_RECORD 57 select HAVE_FUNCTION_GRAPH_TRACER 58 select HAVE_FUNCTION_TRACER 59 select HAVE_GENERIC_DMA_COHERENT 60 select HAVE_IDE 61 select HAVE_IOREMAP_PROT 62 select HAVE_IRQ_EXIT_ON_IRQ_STACK 63 select HAVE_IRQ_TIME_ACCOUNTING 64 select HAVE_KPROBES 65 select HAVE_KRETPROBES 66 select HAVE_LD_DEAD_CODE_DATA_ELIMINATION 67 select HAVE_MEMBLOCK_NODE_MAP 68 select HAVE_MOD_ARCH_SPECIFIC 69 select HAVE_NMI 70 select HAVE_OPROFILE 71 select HAVE_PERF_EVENTS 72 select HAVE_REGS_AND_STACK_ACCESS_API 73 select HAVE_RSEQ 74 select HAVE_STACKPROTECTOR 75 select HAVE_SYSCALL_TRACEPOINTS 76 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP 77 select IRQ_FORCED_THREADING 78 select ISA if EISA 79 select MODULES_USE_ELF_RELA if MODULES && 64BIT 80 select MODULES_USE_ELF_REL if MODULES 81 select PERF_USE_VMALLOC 82 select RTC_LIB 83 select SYSCTL_EXCEPTION_TRACE 84 select VIRT_TO_BUS 85 86menu "Machine selection" 87 88choice 89 prompt "System type" 90 default MIPS_GENERIC 91 92config MIPS_GENERIC 93 bool "Generic board-agnostic MIPS kernel" 94 select BOOT_RAW 95 select BUILTIN_DTB 96 select CEVT_R4K 97 select CLKSRC_MIPS_GIC 98 select COMMON_CLK 99 select CPU_MIPSR2_IRQ_VI 100 select CPU_MIPSR2_IRQ_EI 101 select CSRC_R4K 102 select DMA_PERDEV_COHERENT 103 select HAVE_PCI 104 select IRQ_MIPS_CPU 105 select LIBFDT 106 select MIPS_AUTO_PFN_OFFSET 107 select MIPS_CPU_SCACHE 108 select MIPS_GIC 109 select MIPS_L1_CACHE_SHIFT_7 110 select NO_EXCEPT_FILL 111 select PCI_DRIVERS_GENERIC 112 select PINCTRL 113 select SMP_UP if SMP 114 select SWAP_IO_SPACE 115 select SYS_HAS_CPU_MIPS32_R1 116 select SYS_HAS_CPU_MIPS32_R2 117 select SYS_HAS_CPU_MIPS32_R6 118 select SYS_HAS_CPU_MIPS64_R1 119 select SYS_HAS_CPU_MIPS64_R2 120 select SYS_HAS_CPU_MIPS64_R6 121 select SYS_SUPPORTS_32BIT_KERNEL 122 select SYS_SUPPORTS_64BIT_KERNEL 123 select SYS_SUPPORTS_BIG_ENDIAN 124 select SYS_SUPPORTS_HIGHMEM 125 select SYS_SUPPORTS_LITTLE_ENDIAN 126 select SYS_SUPPORTS_MICROMIPS 127 select SYS_SUPPORTS_MIPS_CPS 128 select SYS_SUPPORTS_MIPS16 129 select SYS_SUPPORTS_MULTITHREADING 130 select SYS_SUPPORTS_RELOCATABLE 131 select SYS_SUPPORTS_SMARTMIPS 132 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 133 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 134 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 135 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 136 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 137 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 138 select USE_OF 139 select UHI_BOOT 140 help 141 Select this to build a kernel which aims to support multiple boards, 142 generally using a flattened device tree passed from the bootloader 143 using the boot protocol defined in the UHI (Unified Hosting 144 Interface) specification. 145 146config MIPS_ALCHEMY 147 bool "Alchemy processor based machines" 148 select PHYS_ADDR_T_64BIT 149 select CEVT_R4K 150 select CSRC_R4K 151 select IRQ_MIPS_CPU 152 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is 153 select SYS_HAS_CPU_MIPS32_R1 154 select SYS_SUPPORTS_32BIT_KERNEL 155 select SYS_SUPPORTS_APM_EMULATION 156 select GPIOLIB 157 select SYS_SUPPORTS_ZBOOT 158 select COMMON_CLK 159 160config AR7 161 bool "Texas Instruments AR7" 162 select BOOT_ELF32 163 select DMA_NONCOHERENT 164 select CEVT_R4K 165 select CSRC_R4K 166 select IRQ_MIPS_CPU 167 select NO_EXCEPT_FILL 168 select SWAP_IO_SPACE 169 select SYS_HAS_CPU_MIPS32_R1 170 select SYS_HAS_EARLY_PRINTK 171 select SYS_SUPPORTS_32BIT_KERNEL 172 select SYS_SUPPORTS_LITTLE_ENDIAN 173 select SYS_SUPPORTS_MIPS16 174 select SYS_SUPPORTS_ZBOOT_UART16550 175 select GPIOLIB 176 select VLYNQ 177 select HAVE_CLK 178 help 179 Support for the Texas Instruments AR7 System-on-a-Chip 180 family: TNETD7100, 7200 and 7300. 181 182config ATH25 183 bool "Atheros AR231x/AR531x SoC support" 184 select CEVT_R4K 185 select CSRC_R4K 186 select DMA_NONCOHERENT 187 select IRQ_MIPS_CPU 188 select IRQ_DOMAIN 189 select SYS_HAS_CPU_MIPS32_R1 190 select SYS_SUPPORTS_BIG_ENDIAN 191 select SYS_SUPPORTS_32BIT_KERNEL 192 select SYS_HAS_EARLY_PRINTK 193 help 194 Support for Atheros AR231x and Atheros AR531x based boards 195 196config ATH79 197 bool "Atheros AR71XX/AR724X/AR913X based boards" 198 select ARCH_HAS_RESET_CONTROLLER 199 select BOOT_RAW 200 select CEVT_R4K 201 select CSRC_R4K 202 select DMA_NONCOHERENT 203 select GPIOLIB 204 select PINCTRL 205 select HAVE_CLK 206 select COMMON_CLK 207 select CLKDEV_LOOKUP 208 select IRQ_MIPS_CPU 209 select MIPS_MACHINE 210 select SYS_HAS_CPU_MIPS32_R2 211 select SYS_HAS_EARLY_PRINTK 212 select SYS_SUPPORTS_32BIT_KERNEL 213 select SYS_SUPPORTS_BIG_ENDIAN 214 select SYS_SUPPORTS_MIPS16 215 select SYS_SUPPORTS_ZBOOT_UART_PROM 216 select USE_OF 217 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM 218 help 219 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 220 221config BMIPS_GENERIC 222 bool "Broadcom Generic BMIPS kernel" 223 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL 224 select ARCH_HAS_PHYS_TO_DMA 225 select BOOT_RAW 226 select NO_EXCEPT_FILL 227 select USE_OF 228 select CEVT_R4K 229 select CSRC_R4K 230 select SYNC_R4K 231 select COMMON_CLK 232 select BCM6345_L1_IRQ 233 select BCM7038_L1_IRQ 234 select BCM7120_L2_IRQ 235 select BRCMSTB_L2_IRQ 236 select IRQ_MIPS_CPU 237 select DMA_NONCOHERENT 238 select SYS_SUPPORTS_32BIT_KERNEL 239 select SYS_SUPPORTS_LITTLE_ENDIAN 240 select SYS_SUPPORTS_BIG_ENDIAN 241 select SYS_SUPPORTS_HIGHMEM 242 select SYS_HAS_CPU_BMIPS32_3300 243 select SYS_HAS_CPU_BMIPS4350 244 select SYS_HAS_CPU_BMIPS4380 245 select SYS_HAS_CPU_BMIPS5000 246 select SWAP_IO_SPACE 247 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 248 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 249 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 250 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 251 select HARDIRQS_SW_RESEND 252 help 253 Build a generic DT-based kernel image that boots on select 254 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top 255 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN 256 must be set appropriately for your board. 257 258config BCM47XX 259 bool "Broadcom BCM47XX based boards" 260 select BOOT_RAW 261 select CEVT_R4K 262 select CSRC_R4K 263 select DMA_NONCOHERENT 264 select HAVE_PCI 265 select IRQ_MIPS_CPU 266 select SYS_HAS_CPU_MIPS32_R1 267 select NO_EXCEPT_FILL 268 select SYS_SUPPORTS_32BIT_KERNEL 269 select SYS_SUPPORTS_LITTLE_ENDIAN 270 select SYS_SUPPORTS_MIPS16 271 select SYS_SUPPORTS_ZBOOT 272 select SYS_HAS_EARLY_PRINTK 273 select USE_GENERIC_EARLY_PRINTK_8250 274 select GPIOLIB 275 select LEDS_GPIO_REGISTER 276 select BCM47XX_NVRAM 277 select BCM47XX_SPROM 278 select BCM47XX_SSB if !BCM47XX_BCMA 279 help 280 Support for BCM47XX based boards 281 282config BCM63XX 283 bool "Broadcom BCM63XX based boards" 284 select BOOT_RAW 285 select CEVT_R4K 286 select CSRC_R4K 287 select SYNC_R4K 288 select DMA_NONCOHERENT 289 select IRQ_MIPS_CPU 290 select SYS_SUPPORTS_32BIT_KERNEL 291 select SYS_SUPPORTS_BIG_ENDIAN 292 select SYS_HAS_EARLY_PRINTK 293 select SWAP_IO_SPACE 294 select GPIOLIB 295 select HAVE_CLK 296 select MIPS_L1_CACHE_SHIFT_4 297 select CLKDEV_LOOKUP 298 help 299 Support for BCM63XX based boards 300 301config MIPS_COBALT 302 bool "Cobalt Server" 303 select CEVT_R4K 304 select CSRC_R4K 305 select CEVT_GT641XX 306 select DMA_NONCOHERENT 307 select FORCE_PCI 308 select I8253 309 select I8259 310 select IRQ_MIPS_CPU 311 select IRQ_GT641XX 312 select PCI_GT64XXX_PCI0 313 select SYS_HAS_CPU_NEVADA 314 select SYS_HAS_EARLY_PRINTK 315 select SYS_SUPPORTS_32BIT_KERNEL 316 select SYS_SUPPORTS_64BIT_KERNEL 317 select SYS_SUPPORTS_LITTLE_ENDIAN 318 select USE_GENERIC_EARLY_PRINTK_8250 319 320config MACH_DECSTATION 321 bool "DECstations" 322 select BOOT_ELF32 323 select CEVT_DS1287 324 select CEVT_R4K if CPU_R4X00 325 select CSRC_IOASIC 326 select CSRC_R4K if CPU_R4X00 327 select CPU_DADDI_WORKAROUNDS if 64BIT 328 select CPU_R4000_WORKAROUNDS if 64BIT 329 select CPU_R4400_WORKAROUNDS if 64BIT 330 select DMA_NONCOHERENT 331 select NO_IOPORT_MAP 332 select IRQ_MIPS_CPU 333 select SYS_HAS_CPU_R3000 334 select SYS_HAS_CPU_R4X00 335 select SYS_SUPPORTS_32BIT_KERNEL 336 select SYS_SUPPORTS_64BIT_KERNEL 337 select SYS_SUPPORTS_LITTLE_ENDIAN 338 select SYS_SUPPORTS_128HZ 339 select SYS_SUPPORTS_256HZ 340 select SYS_SUPPORTS_1024HZ 341 select MIPS_L1_CACHE_SHIFT_4 342 help 343 This enables support for DEC's MIPS based workstations. For details 344 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 345 DECstation porting pages on <http://decstation.unix-ag.org/>. 346 347 If you have one of the following DECstation Models you definitely 348 want to choose R4xx0 for the CPU Type: 349 350 DECstation 5000/50 351 DECstation 5000/150 352 DECstation 5000/260 353 DECsystem 5900/260 354 355 otherwise choose R3000. 356 357config MACH_JAZZ 358 bool "Jazz family of machines" 359 select ARCH_MIGHT_HAVE_PC_PARPORT 360 select ARCH_MIGHT_HAVE_PC_SERIO 361 select FW_ARC 362 select FW_ARC32 363 select ARCH_MAY_HAVE_PC_FDC 364 select CEVT_R4K 365 select CSRC_R4K 366 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 367 select GENERIC_ISA_DMA 368 select HAVE_PCSPKR_PLATFORM 369 select IRQ_MIPS_CPU 370 select I8253 371 select I8259 372 select ISA 373 select SYS_HAS_CPU_R4X00 374 select SYS_SUPPORTS_32BIT_KERNEL 375 select SYS_SUPPORTS_64BIT_KERNEL 376 select SYS_SUPPORTS_100HZ 377 help 378 This a family of machines based on the MIPS R4030 chipset which was 379 used by several vendors to build RISC/os and Windows NT workstations. 380 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 381 Olivetti M700-10 workstations. 382 383config MACH_INGENIC 384 bool "Ingenic SoC based machines" 385 select SYS_SUPPORTS_32BIT_KERNEL 386 select SYS_SUPPORTS_LITTLE_ENDIAN 387 select SYS_SUPPORTS_ZBOOT_UART16550 388 select DMA_NONCOHERENT 389 select IRQ_MIPS_CPU 390 select PINCTRL 391 select GPIOLIB 392 select COMMON_CLK 393 select GENERIC_IRQ_CHIP 394 select BUILTIN_DTB 395 select USE_OF 396 select LIBFDT 397 398config LANTIQ 399 bool "Lantiq based platforms" 400 select DMA_NONCOHERENT 401 select IRQ_MIPS_CPU 402 select CEVT_R4K 403 select CSRC_R4K 404 select SYS_HAS_CPU_MIPS32_R1 405 select SYS_HAS_CPU_MIPS32_R2 406 select SYS_SUPPORTS_BIG_ENDIAN 407 select SYS_SUPPORTS_32BIT_KERNEL 408 select SYS_SUPPORTS_MIPS16 409 select SYS_SUPPORTS_MULTITHREADING 410 select SYS_SUPPORTS_VPE_LOADER 411 select SYS_HAS_EARLY_PRINTK 412 select GPIOLIB 413 select SWAP_IO_SPACE 414 select BOOT_RAW 415 select CLKDEV_LOOKUP 416 select USE_OF 417 select PINCTRL 418 select PINCTRL_LANTIQ 419 select ARCH_HAS_RESET_CONTROLLER 420 select RESET_CONTROLLER 421 422config LASAT 423 bool "LASAT Networks platforms" 424 select CEVT_R4K 425 select CRC32 426 select CSRC_R4K 427 select DMA_NONCOHERENT 428 select SYS_HAS_EARLY_PRINTK 429 select HAVE_PCI 430 select IRQ_MIPS_CPU 431 select PCI_GT64XXX_PCI0 432 select MIPS_NILE4 433 select R5000_CPU_SCACHE 434 select SYS_HAS_CPU_R5000 435 select SYS_SUPPORTS_32BIT_KERNEL 436 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 437 select SYS_SUPPORTS_LITTLE_ENDIAN 438 439config MACH_LOONGSON32 440 bool "Loongson-1 family of machines" 441 select SYS_SUPPORTS_ZBOOT 442 help 443 This enables support for the Loongson-1 family of machines. 444 445 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by 446 the Institute of Computing Technology (ICT), Chinese Academy of 447 Sciences (CAS). 448 449config MACH_LOONGSON64 450 bool "Loongson-2/3 family of machines" 451 select SYS_SUPPORTS_ZBOOT 452 help 453 This enables the support of Loongson-2/3 family of machines. 454 455 Loongson-2 is a family of single-core CPUs and Loongson-3 is a 456 family of multi-core CPUs. They are both 64-bit general-purpose 457 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute 458 of Computing Technology (ICT), Chinese Academy of Sciences (CAS) 459 in the People's Republic of China. The chief architect is Professor 460 Weiwu Hu. 461 462config MACH_PISTACHIO 463 bool "IMG Pistachio SoC based boards" 464 select BOOT_ELF32 465 select BOOT_RAW 466 select CEVT_R4K 467 select CLKSRC_MIPS_GIC 468 select COMMON_CLK 469 select CSRC_R4K 470 select DMA_NONCOHERENT 471 select GPIOLIB 472 select IRQ_MIPS_CPU 473 select LIBFDT 474 select MFD_SYSCON 475 select MIPS_CPU_SCACHE 476 select MIPS_GIC 477 select PINCTRL 478 select REGULATOR 479 select SYS_HAS_CPU_MIPS32_R2 480 select SYS_SUPPORTS_32BIT_KERNEL 481 select SYS_SUPPORTS_LITTLE_ENDIAN 482 select SYS_SUPPORTS_MIPS_CPS 483 select SYS_SUPPORTS_MULTITHREADING 484 select SYS_SUPPORTS_RELOCATABLE 485 select SYS_SUPPORTS_ZBOOT 486 select SYS_HAS_EARLY_PRINTK 487 select USE_GENERIC_EARLY_PRINTK_8250 488 select USE_OF 489 help 490 This enables support for the IMG Pistachio SoC platform. 491 492config MIPS_MALTA 493 bool "MIPS Malta board" 494 select ARCH_MAY_HAVE_PC_FDC 495 select ARCH_MIGHT_HAVE_PC_PARPORT 496 select ARCH_MIGHT_HAVE_PC_SERIO 497 select BOOT_ELF32 498 select BOOT_RAW 499 select BUILTIN_DTB 500 select CEVT_R4K 501 select CLKSRC_MIPS_GIC 502 select COMMON_CLK 503 select CSRC_R4K 504 select DMA_MAYBE_COHERENT 505 select GENERIC_ISA_DMA 506 select HAVE_PCSPKR_PLATFORM 507 select HAVE_PCI 508 select I8253 509 select I8259 510 select IRQ_MIPS_CPU 511 select LIBFDT 512 select MIPS_BONITO64 513 select MIPS_CPU_SCACHE 514 select MIPS_GIC 515 select MIPS_L1_CACHE_SHIFT_6 516 select MIPS_MSC 517 select PCI_GT64XXX_PCI0 518 select SMP_UP if SMP 519 select SWAP_IO_SPACE 520 select SYS_HAS_CPU_MIPS32_R1 521 select SYS_HAS_CPU_MIPS32_R2 522 select SYS_HAS_CPU_MIPS32_R3_5 523 select SYS_HAS_CPU_MIPS32_R5 524 select SYS_HAS_CPU_MIPS32_R6 525 select SYS_HAS_CPU_MIPS64_R1 526 select SYS_HAS_CPU_MIPS64_R2 527 select SYS_HAS_CPU_MIPS64_R6 528 select SYS_HAS_CPU_NEVADA 529 select SYS_HAS_CPU_RM7000 530 select SYS_SUPPORTS_32BIT_KERNEL 531 select SYS_SUPPORTS_64BIT_KERNEL 532 select SYS_SUPPORTS_BIG_ENDIAN 533 select SYS_SUPPORTS_HIGHMEM 534 select SYS_SUPPORTS_LITTLE_ENDIAN 535 select SYS_SUPPORTS_MICROMIPS 536 select SYS_SUPPORTS_MIPS16 537 select SYS_SUPPORTS_MIPS_CMP 538 select SYS_SUPPORTS_MIPS_CPS 539 select SYS_SUPPORTS_MULTITHREADING 540 select SYS_SUPPORTS_RELOCATABLE 541 select SYS_SUPPORTS_SMARTMIPS 542 select SYS_SUPPORTS_VPE_LOADER 543 select SYS_SUPPORTS_ZBOOT 544 select USE_OF 545 select ZONE_DMA32 if 64BIT 546 help 547 This enables support for the MIPS Technologies Malta evaluation 548 board. 549 550config MACH_PIC32 551 bool "Microchip PIC32 Family" 552 help 553 This enables support for the Microchip PIC32 family of platforms. 554 555 Microchip PIC32 is a family of general-purpose 32 bit MIPS core 556 microcontrollers. 557 558config NEC_MARKEINS 559 bool "NEC EMMA2RH Mark-eins board" 560 select SOC_EMMA2RH 561 select HAVE_PCI 562 help 563 This enables support for the NEC Electronics Mark-eins boards. 564 565config MACH_VR41XX 566 bool "NEC VR4100 series based machines" 567 select CEVT_R4K 568 select CSRC_R4K 569 select SYS_HAS_CPU_VR41XX 570 select SYS_SUPPORTS_MIPS16 571 select GPIOLIB 572 573config NXP_STB220 574 bool "NXP STB220 board" 575 select SOC_PNX833X 576 help 577 Support for NXP Semiconductors STB220 Development Board. 578 579config NXP_STB225 580 bool "NXP 225 board" 581 select SOC_PNX833X 582 select SOC_PNX8335 583 help 584 Support for NXP Semiconductors STB225 Development Board. 585 586config PMC_MSP 587 bool "PMC-Sierra MSP chipsets" 588 select CEVT_R4K 589 select CSRC_R4K 590 select DMA_NONCOHERENT 591 select SWAP_IO_SPACE 592 select NO_EXCEPT_FILL 593 select BOOT_RAW 594 select SYS_HAS_CPU_MIPS32_R1 595 select SYS_HAS_CPU_MIPS32_R2 596 select SYS_SUPPORTS_32BIT_KERNEL 597 select SYS_SUPPORTS_BIG_ENDIAN 598 select SYS_SUPPORTS_MIPS16 599 select IRQ_MIPS_CPU 600 select SERIAL_8250 601 select SERIAL_8250_CONSOLE 602 select USB_EHCI_BIG_ENDIAN_MMIO 603 select USB_EHCI_BIG_ENDIAN_DESC 604 help 605 This adds support for the PMC-Sierra family of Multi-Service 606 Processor System-On-A-Chips. These parts include a number 607 of integrated peripherals, interfaces and DSPs in addition to 608 a variety of MIPS cores. 609 610config RALINK 611 bool "Ralink based machines" 612 select CEVT_R4K 613 select CSRC_R4K 614 select BOOT_RAW 615 select DMA_NONCOHERENT 616 select IRQ_MIPS_CPU 617 select USE_OF 618 select SYS_HAS_CPU_MIPS32_R1 619 select SYS_HAS_CPU_MIPS32_R2 620 select SYS_SUPPORTS_32BIT_KERNEL 621 select SYS_SUPPORTS_LITTLE_ENDIAN 622 select SYS_SUPPORTS_MIPS16 623 select SYS_HAS_EARLY_PRINTK 624 select CLKDEV_LOOKUP 625 select ARCH_HAS_RESET_CONTROLLER 626 select RESET_CONTROLLER 627 628config SGI_IP22 629 bool "SGI IP22 (Indy/Indigo2)" 630 select FW_ARC 631 select FW_ARC32 632 select ARCH_MIGHT_HAVE_PC_SERIO 633 select BOOT_ELF32 634 select CEVT_R4K 635 select CSRC_R4K 636 select DEFAULT_SGI_PARTITION 637 select DMA_NONCOHERENT 638 select HAVE_EISA 639 select I8253 640 select I8259 641 select IP22_CPU_SCACHE 642 select IRQ_MIPS_CPU 643 select GENERIC_ISA_DMA_SUPPORT_BROKEN 644 select SGI_HAS_I8042 645 select SGI_HAS_INDYDOG 646 select SGI_HAS_HAL2 647 select SGI_HAS_SEEQ 648 select SGI_HAS_WD93 649 select SGI_HAS_ZILOG 650 select SWAP_IO_SPACE 651 select SYS_HAS_CPU_R4X00 652 select SYS_HAS_CPU_R5000 653 # 654 # Disable EARLY_PRINTK for now since it leads to overwritten prom 655 # memory during early boot on some machines. 656 # 657 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 658 # for a more details discussion 659 # 660 # select SYS_HAS_EARLY_PRINTK 661 select SYS_SUPPORTS_32BIT_KERNEL 662 select SYS_SUPPORTS_64BIT_KERNEL 663 select SYS_SUPPORTS_BIG_ENDIAN 664 select MIPS_L1_CACHE_SHIFT_7 665 help 666 This are the SGI Indy, Challenge S and Indigo2, as well as certain 667 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 668 that runs on these, say Y here. 669 670config SGI_IP27 671 bool "SGI IP27 (Origin200/2000)" 672 select ARCH_HAS_PHYS_TO_DMA 673 select FW_ARC 674 select FW_ARC64 675 select BOOT_ELF64 676 select DEFAULT_SGI_PARTITION 677 select SYS_HAS_EARLY_PRINTK 678 select HAVE_PCI 679 select NR_CPUS_DEFAULT_64 680 select SYS_HAS_CPU_R10000 681 select SYS_SUPPORTS_64BIT_KERNEL 682 select SYS_SUPPORTS_BIG_ENDIAN 683 select SYS_SUPPORTS_NUMA 684 select SYS_SUPPORTS_SMP 685 select MIPS_L1_CACHE_SHIFT_7 686 help 687 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 688 workstations. To compile a Linux kernel that runs on these, say Y 689 here. 690 691config SGI_IP28 692 bool "SGI IP28 (Indigo2 R10k)" 693 select FW_ARC 694 select FW_ARC64 695 select ARCH_MIGHT_HAVE_PC_SERIO 696 select BOOT_ELF64 697 select CEVT_R4K 698 select CSRC_R4K 699 select DEFAULT_SGI_PARTITION 700 select DMA_NONCOHERENT 701 select GENERIC_ISA_DMA_SUPPORT_BROKEN 702 select IRQ_MIPS_CPU 703 select HAVE_EISA 704 select I8253 705 select I8259 706 select SGI_HAS_I8042 707 select SGI_HAS_INDYDOG 708 select SGI_HAS_HAL2 709 select SGI_HAS_SEEQ 710 select SGI_HAS_WD93 711 select SGI_HAS_ZILOG 712 select SWAP_IO_SPACE 713 select SYS_HAS_CPU_R10000 714 # 715 # Disable EARLY_PRINTK for now since it leads to overwritten prom 716 # memory during early boot on some machines. 717 # 718 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 719 # for a more details discussion 720 # 721 # select SYS_HAS_EARLY_PRINTK 722 select SYS_SUPPORTS_64BIT_KERNEL 723 select SYS_SUPPORTS_BIG_ENDIAN 724 select MIPS_L1_CACHE_SHIFT_7 725 help 726 This is the SGI Indigo2 with R10000 processor. To compile a Linux 727 kernel that runs on these, say Y here. 728 729config SGI_IP32 730 bool "SGI IP32 (O2)" 731 select ARCH_HAS_PHYS_TO_DMA 732 select FW_ARC 733 select FW_ARC32 734 select BOOT_ELF32 735 select CEVT_R4K 736 select CSRC_R4K 737 select DMA_NONCOHERENT 738 select HAVE_PCI 739 select IRQ_MIPS_CPU 740 select R5000_CPU_SCACHE 741 select RM7000_CPU_SCACHE 742 select SYS_HAS_CPU_R5000 743 select SYS_HAS_CPU_R10000 if BROKEN 744 select SYS_HAS_CPU_RM7000 745 select SYS_HAS_CPU_NEVADA 746 select SYS_SUPPORTS_64BIT_KERNEL 747 select SYS_SUPPORTS_BIG_ENDIAN 748 help 749 If you want this kernel to run on SGI O2 workstation, say Y here. 750 751config SIBYTE_CRHINE 752 bool "Sibyte BCM91120C-CRhine" 753 select BOOT_ELF32 754 select SIBYTE_BCM1120 755 select SWAP_IO_SPACE 756 select SYS_HAS_CPU_SB1 757 select SYS_SUPPORTS_BIG_ENDIAN 758 select SYS_SUPPORTS_LITTLE_ENDIAN 759 760config SIBYTE_CARMEL 761 bool "Sibyte BCM91120x-Carmel" 762 select BOOT_ELF32 763 select SIBYTE_BCM1120 764 select SWAP_IO_SPACE 765 select SYS_HAS_CPU_SB1 766 select SYS_SUPPORTS_BIG_ENDIAN 767 select SYS_SUPPORTS_LITTLE_ENDIAN 768 769config SIBYTE_CRHONE 770 bool "Sibyte BCM91125C-CRhone" 771 select BOOT_ELF32 772 select SIBYTE_BCM1125 773 select SWAP_IO_SPACE 774 select SYS_HAS_CPU_SB1 775 select SYS_SUPPORTS_BIG_ENDIAN 776 select SYS_SUPPORTS_HIGHMEM 777 select SYS_SUPPORTS_LITTLE_ENDIAN 778 779config SIBYTE_RHONE 780 bool "Sibyte BCM91125E-Rhone" 781 select BOOT_ELF32 782 select SIBYTE_BCM1125H 783 select SWAP_IO_SPACE 784 select SYS_HAS_CPU_SB1 785 select SYS_SUPPORTS_BIG_ENDIAN 786 select SYS_SUPPORTS_LITTLE_ENDIAN 787 788config SIBYTE_SWARM 789 bool "Sibyte BCM91250A-SWARM" 790 select BOOT_ELF32 791 select HAVE_PATA_PLATFORM 792 select SIBYTE_SB1250 793 select SWAP_IO_SPACE 794 select SYS_HAS_CPU_SB1 795 select SYS_SUPPORTS_BIG_ENDIAN 796 select SYS_SUPPORTS_HIGHMEM 797 select SYS_SUPPORTS_LITTLE_ENDIAN 798 select ZONE_DMA32 if 64BIT 799 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 800 801config SIBYTE_LITTLESUR 802 bool "Sibyte BCM91250C2-LittleSur" 803 select BOOT_ELF32 804 select HAVE_PATA_PLATFORM 805 select SIBYTE_SB1250 806 select SWAP_IO_SPACE 807 select SYS_HAS_CPU_SB1 808 select SYS_SUPPORTS_BIG_ENDIAN 809 select SYS_SUPPORTS_HIGHMEM 810 select SYS_SUPPORTS_LITTLE_ENDIAN 811 select ZONE_DMA32 if 64BIT 812 813config SIBYTE_SENTOSA 814 bool "Sibyte BCM91250E-Sentosa" 815 select BOOT_ELF32 816 select SIBYTE_SB1250 817 select SWAP_IO_SPACE 818 select SYS_HAS_CPU_SB1 819 select SYS_SUPPORTS_BIG_ENDIAN 820 select SYS_SUPPORTS_LITTLE_ENDIAN 821 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 822 823config SIBYTE_BIGSUR 824 bool "Sibyte BCM91480B-BigSur" 825 select BOOT_ELF32 826 select NR_CPUS_DEFAULT_4 827 select SIBYTE_BCM1x80 828 select SWAP_IO_SPACE 829 select SYS_HAS_CPU_SB1 830 select SYS_SUPPORTS_BIG_ENDIAN 831 select SYS_SUPPORTS_HIGHMEM 832 select SYS_SUPPORTS_LITTLE_ENDIAN 833 select ZONE_DMA32 if 64BIT 834 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 835 836config SNI_RM 837 bool "SNI RM200/300/400" 838 select FW_ARC if CPU_LITTLE_ENDIAN 839 select FW_ARC32 if CPU_LITTLE_ENDIAN 840 select FW_SNIPROM if CPU_BIG_ENDIAN 841 select ARCH_MAY_HAVE_PC_FDC 842 select ARCH_MIGHT_HAVE_PC_PARPORT 843 select ARCH_MIGHT_HAVE_PC_SERIO 844 select BOOT_ELF32 845 select CEVT_R4K 846 select CSRC_R4K 847 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 848 select DMA_NONCOHERENT 849 select GENERIC_ISA_DMA 850 select HAVE_EISA 851 select HAVE_PCSPKR_PLATFORM 852 select HAVE_PCI 853 select IRQ_MIPS_CPU 854 select I8253 855 select I8259 856 select ISA 857 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 858 select SYS_HAS_CPU_R4X00 859 select SYS_HAS_CPU_R5000 860 select SYS_HAS_CPU_R10000 861 select R5000_CPU_SCACHE 862 select SYS_HAS_EARLY_PRINTK 863 select SYS_SUPPORTS_32BIT_KERNEL 864 select SYS_SUPPORTS_64BIT_KERNEL 865 select SYS_SUPPORTS_BIG_ENDIAN 866 select SYS_SUPPORTS_HIGHMEM 867 select SYS_SUPPORTS_LITTLE_ENDIAN 868 help 869 The SNI RM200/300/400 are MIPS-based machines manufactured by 870 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 871 Technology and now in turn merged with Fujitsu. Say Y here to 872 support this machine type. 873 874config MACH_TX39XX 875 bool "Toshiba TX39 series based machines" 876 877config MACH_TX49XX 878 bool "Toshiba TX49 series based machines" 879 880config MIKROTIK_RB532 881 bool "Mikrotik RB532 boards" 882 select CEVT_R4K 883 select CSRC_R4K 884 select DMA_NONCOHERENT 885 select HAVE_PCI 886 select IRQ_MIPS_CPU 887 select SYS_HAS_CPU_MIPS32_R1 888 select SYS_SUPPORTS_32BIT_KERNEL 889 select SYS_SUPPORTS_LITTLE_ENDIAN 890 select SWAP_IO_SPACE 891 select BOOT_RAW 892 select GPIOLIB 893 select MIPS_L1_CACHE_SHIFT_4 894 help 895 Support the Mikrotik(tm) RouterBoard 532 series, 896 based on the IDT RC32434 SoC. 897 898config CAVIUM_OCTEON_SOC 899 bool "Cavium Networks Octeon SoC based boards" 900 select CEVT_R4K 901 select ARCH_HAS_PHYS_TO_DMA 902 select HAVE_RAPIDIO 903 select PHYS_ADDR_T_64BIT 904 select SYS_SUPPORTS_64BIT_KERNEL 905 select SYS_SUPPORTS_BIG_ENDIAN 906 select EDAC_SUPPORT 907 select EDAC_ATOMIC_SCRUB 908 select SYS_SUPPORTS_LITTLE_ENDIAN 909 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN 910 select SYS_HAS_EARLY_PRINTK 911 select SYS_HAS_CPU_CAVIUM_OCTEON 912 select HAVE_PCI 913 select ZONE_DMA32 914 select HOLES_IN_ZONE 915 select GPIOLIB 916 select LIBFDT 917 select USE_OF 918 select ARCH_SPARSEMEM_ENABLE 919 select SYS_SUPPORTS_SMP 920 select NR_CPUS_DEFAULT_64 921 select MIPS_NR_CPU_NR_MAP_1024 922 select BUILTIN_DTB 923 select MTD_COMPLEX_MAPPINGS 924 select SWIOTLB 925 select SYS_SUPPORTS_RELOCATABLE 926 help 927 This option supports all of the Octeon reference boards from Cavium 928 Networks. It builds a kernel that dynamically determines the Octeon 929 CPU type and supports all known board reference implementations. 930 Some of the supported boards are: 931 EBT3000 932 EBH3000 933 EBH3100 934 Thunder 935 Kodama 936 Hikari 937 Say Y here for most Octeon reference boards. 938 939config NLM_XLR_BOARD 940 bool "Netlogic XLR/XLS based systems" 941 select BOOT_ELF32 942 select NLM_COMMON 943 select SYS_HAS_CPU_XLR 944 select SYS_SUPPORTS_SMP 945 select HAVE_PCI 946 select SWAP_IO_SPACE 947 select SYS_SUPPORTS_32BIT_KERNEL 948 select SYS_SUPPORTS_64BIT_KERNEL 949 select PHYS_ADDR_T_64BIT 950 select SYS_SUPPORTS_BIG_ENDIAN 951 select SYS_SUPPORTS_HIGHMEM 952 select NR_CPUS_DEFAULT_32 953 select CEVT_R4K 954 select CSRC_R4K 955 select IRQ_MIPS_CPU 956 select ZONE_DMA32 if 64BIT 957 select SYNC_R4K 958 select SYS_HAS_EARLY_PRINTK 959 select SYS_SUPPORTS_ZBOOT 960 select SYS_SUPPORTS_ZBOOT_UART16550 961 help 962 Support for systems based on Netlogic XLR and XLS processors. 963 Say Y here if you have a XLR or XLS based board. 964 965config NLM_XLP_BOARD 966 bool "Netlogic XLP based systems" 967 select BOOT_ELF32 968 select NLM_COMMON 969 select SYS_HAS_CPU_XLP 970 select SYS_SUPPORTS_SMP 971 select HAVE_PCI 972 select SYS_SUPPORTS_32BIT_KERNEL 973 select SYS_SUPPORTS_64BIT_KERNEL 974 select PHYS_ADDR_T_64BIT 975 select GPIOLIB 976 select SYS_SUPPORTS_BIG_ENDIAN 977 select SYS_SUPPORTS_LITTLE_ENDIAN 978 select SYS_SUPPORTS_HIGHMEM 979 select NR_CPUS_DEFAULT_32 980 select CEVT_R4K 981 select CSRC_R4K 982 select IRQ_MIPS_CPU 983 select ZONE_DMA32 if 64BIT 984 select SYNC_R4K 985 select SYS_HAS_EARLY_PRINTK 986 select USE_OF 987 select SYS_SUPPORTS_ZBOOT 988 select SYS_SUPPORTS_ZBOOT_UART16550 989 help 990 This board is based on Netlogic XLP Processor. 991 Say Y here if you have a XLP based board. 992 993config MIPS_PARAVIRT 994 bool "Para-Virtualized guest system" 995 select CEVT_R4K 996 select CSRC_R4K 997 select SYS_SUPPORTS_64BIT_KERNEL 998 select SYS_SUPPORTS_32BIT_KERNEL 999 select SYS_SUPPORTS_BIG_ENDIAN 1000 select SYS_SUPPORTS_SMP 1001 select NR_CPUS_DEFAULT_4 1002 select SYS_HAS_EARLY_PRINTK 1003 select SYS_HAS_CPU_MIPS32_R2 1004 select SYS_HAS_CPU_MIPS64_R2 1005 select SYS_HAS_CPU_CAVIUM_OCTEON 1006 select HAVE_PCI 1007 select SWAP_IO_SPACE 1008 help 1009 This option supports guest running under ???? 1010 1011endchoice 1012 1013source "arch/mips/alchemy/Kconfig" 1014source "arch/mips/ath25/Kconfig" 1015source "arch/mips/ath79/Kconfig" 1016source "arch/mips/bcm47xx/Kconfig" 1017source "arch/mips/bcm63xx/Kconfig" 1018source "arch/mips/bmips/Kconfig" 1019source "arch/mips/generic/Kconfig" 1020source "arch/mips/jazz/Kconfig" 1021source "arch/mips/jz4740/Kconfig" 1022source "arch/mips/lantiq/Kconfig" 1023source "arch/mips/lasat/Kconfig" 1024source "arch/mips/pic32/Kconfig" 1025source "arch/mips/pistachio/Kconfig" 1026source "arch/mips/pmcs-msp71xx/Kconfig" 1027source "arch/mips/ralink/Kconfig" 1028source "arch/mips/sgi-ip27/Kconfig" 1029source "arch/mips/sibyte/Kconfig" 1030source "arch/mips/txx9/Kconfig" 1031source "arch/mips/vr41xx/Kconfig" 1032source "arch/mips/cavium-octeon/Kconfig" 1033source "arch/mips/loongson32/Kconfig" 1034source "arch/mips/loongson64/Kconfig" 1035source "arch/mips/netlogic/Kconfig" 1036source "arch/mips/paravirt/Kconfig" 1037 1038endmenu 1039 1040config RWSEM_GENERIC_SPINLOCK 1041 bool 1042 default y 1043 1044config RWSEM_XCHGADD_ALGORITHM 1045 bool 1046 1047config GENERIC_HWEIGHT 1048 bool 1049 default y 1050 1051config GENERIC_CALIBRATE_DELAY 1052 bool 1053 default y 1054 1055config SCHED_OMIT_FRAME_POINTER 1056 bool 1057 default y 1058 1059# 1060# Select some configuration options automatically based on user selections. 1061# 1062config FW_ARC 1063 bool 1064 1065config ARCH_MAY_HAVE_PC_FDC 1066 bool 1067 1068config BOOT_RAW 1069 bool 1070 1071config CEVT_BCM1480 1072 bool 1073 1074config CEVT_DS1287 1075 bool 1076 1077config CEVT_GT641XX 1078 bool 1079 1080config CEVT_R4K 1081 bool 1082 1083config CEVT_SB1250 1084 bool 1085 1086config CEVT_TXX9 1087 bool 1088 1089config CSRC_BCM1480 1090 bool 1091 1092config CSRC_IOASIC 1093 bool 1094 1095config CSRC_R4K 1096 bool 1097 1098config CSRC_SB1250 1099 bool 1100 1101config MIPS_CLOCK_VSYSCALL 1102 def_bool CSRC_R4K || CLKSRC_MIPS_GIC 1103 1104config GPIO_TXX9 1105 select GPIOLIB 1106 bool 1107 1108config FW_CFE 1109 bool 1110 1111config ARCH_SUPPORTS_UPROBES 1112 bool 1113 1114config DMA_MAYBE_COHERENT 1115 select ARCH_HAS_DMA_COHERENCE_H 1116 select DMA_NONCOHERENT 1117 bool 1118 1119config DMA_PERDEV_COHERENT 1120 bool 1121 select DMA_NONCOHERENT 1122 1123config DMA_NONCOHERENT 1124 bool 1125 select ARCH_HAS_DMA_MMAP_PGPROT 1126 select ARCH_HAS_SYNC_DMA_FOR_DEVICE 1127 select ARCH_HAS_SYNC_DMA_FOR_CPU 1128 select NEED_DMA_MAP_STATE 1129 select ARCH_HAS_DMA_COHERENT_TO_PFN 1130 select DMA_NONCOHERENT_CACHE_SYNC 1131 1132config SYS_HAS_EARLY_PRINTK 1133 bool 1134 1135config SYS_SUPPORTS_HOTPLUG_CPU 1136 bool 1137 1138config MIPS_BONITO64 1139 bool 1140 1141config MIPS_MSC 1142 bool 1143 1144config MIPS_NILE4 1145 bool 1146 1147config SYNC_R4K 1148 bool 1149 1150config MIPS_MACHINE 1151 def_bool n 1152 1153config NO_IOPORT_MAP 1154 def_bool n 1155 1156config GENERIC_CSUM 1157 bool 1158 default y if !CPU_HAS_LOAD_STORE_LR 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 1182config MIPS_CBPF_JIT 1183 def_bool y 1184 depends on BPF_JIT && HAVE_CBPF_JIT 1185 1186config MIPS_EBPF_JIT 1187 def_bool y 1188 depends on BPF_JIT && HAVE_EBPF_JIT 1189 1190 1191# 1192# Endianness selection. Sufficiently obscure so many users don't know what to 1193# answer,so we try hard to limit the available choices. Also the use of a 1194# choice statement should be more obvious to the user. 1195# 1196choice 1197 prompt "Endianness selection" 1198 help 1199 Some MIPS machines can be configured for either little or big endian 1200 byte order. These modes require different kernels and a different 1201 Linux distribution. In general there is one preferred byteorder for a 1202 particular system but some systems are just as commonly used in the 1203 one or the other endianness. 1204 1205config CPU_BIG_ENDIAN 1206 bool "Big endian" 1207 depends on SYS_SUPPORTS_BIG_ENDIAN 1208 1209config CPU_LITTLE_ENDIAN 1210 bool "Little endian" 1211 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1212 1213endchoice 1214 1215config EXPORT_UASM 1216 bool 1217 1218config SYS_SUPPORTS_APM_EMULATION 1219 bool 1220 1221config SYS_SUPPORTS_BIG_ENDIAN 1222 bool 1223 1224config SYS_SUPPORTS_LITTLE_ENDIAN 1225 bool 1226 1227config SYS_SUPPORTS_HUGETLBFS 1228 bool 1229 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT 1230 default y 1231 1232config MIPS_HUGE_TLB_SUPPORT 1233 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1234 1235config IRQ_CPU_RM7K 1236 bool 1237 1238config IRQ_MSP_SLP 1239 bool 1240 1241config IRQ_MSP_CIC 1242 bool 1243 1244config IRQ_TXX9 1245 bool 1246 1247config IRQ_GT641XX 1248 bool 1249 1250config PCI_GT64XXX_PCI0 1251 bool 1252 1253config NO_EXCEPT_FILL 1254 bool 1255 1256config SOC_EMMA2RH 1257 bool 1258 select CEVT_R4K 1259 select CSRC_R4K 1260 select DMA_NONCOHERENT 1261 select IRQ_MIPS_CPU 1262 select SWAP_IO_SPACE 1263 select SYS_HAS_CPU_R5500 1264 select SYS_SUPPORTS_32BIT_KERNEL 1265 select SYS_SUPPORTS_64BIT_KERNEL 1266 select SYS_SUPPORTS_BIG_ENDIAN 1267 1268config SOC_PNX833X 1269 bool 1270 select CEVT_R4K 1271 select CSRC_R4K 1272 select IRQ_MIPS_CPU 1273 select DMA_NONCOHERENT 1274 select SYS_HAS_CPU_MIPS32_R2 1275 select SYS_SUPPORTS_32BIT_KERNEL 1276 select SYS_SUPPORTS_LITTLE_ENDIAN 1277 select SYS_SUPPORTS_BIG_ENDIAN 1278 select SYS_SUPPORTS_MIPS16 1279 select CPU_MIPSR2_IRQ_VI 1280 1281config SOC_PNX8335 1282 bool 1283 select SOC_PNX833X 1284 1285config MIPS_SPRAM 1286 bool 1287 1288config SWAP_IO_SPACE 1289 bool 1290 1291config SGI_HAS_INDYDOG 1292 bool 1293 1294config SGI_HAS_HAL2 1295 bool 1296 1297config SGI_HAS_SEEQ 1298 bool 1299 1300config SGI_HAS_WD93 1301 bool 1302 1303config SGI_HAS_ZILOG 1304 bool 1305 1306config SGI_HAS_I8042 1307 bool 1308 1309config DEFAULT_SGI_PARTITION 1310 bool 1311 1312config FW_ARC32 1313 bool 1314 1315config FW_SNIPROM 1316 bool 1317 1318config BOOT_ELF32 1319 bool 1320 1321config MIPS_L1_CACHE_SHIFT_4 1322 bool 1323 1324config MIPS_L1_CACHE_SHIFT_5 1325 bool 1326 1327config MIPS_L1_CACHE_SHIFT_6 1328 bool 1329 1330config MIPS_L1_CACHE_SHIFT_7 1331 bool 1332 1333config MIPS_L1_CACHE_SHIFT 1334 int 1335 default "7" if MIPS_L1_CACHE_SHIFT_7 1336 default "6" if MIPS_L1_CACHE_SHIFT_6 1337 default "5" if MIPS_L1_CACHE_SHIFT_5 1338 default "4" if MIPS_L1_CACHE_SHIFT_4 1339 default "5" 1340 1341config HAVE_STD_PC_SERIAL_PORT 1342 bool 1343 1344config ARC_CONSOLE 1345 bool "ARC console support" 1346 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1347 1348config ARC_MEMORY 1349 bool 1350 depends on MACH_JAZZ || SNI_RM || SGI_IP32 1351 default y 1352 1353config ARC_PROMLIB 1354 bool 1355 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 1356 default y 1357 1358config FW_ARC64 1359 bool 1360 1361config BOOT_ELF64 1362 bool 1363 1364menu "CPU selection" 1365 1366choice 1367 prompt "CPU type" 1368 default CPU_R4X00 1369 1370config CPU_LOONGSON3 1371 bool "Loongson 3 CPU" 1372 depends on SYS_HAS_CPU_LOONGSON3 1373 select ARCH_HAS_PHYS_TO_DMA 1374 select CPU_SUPPORTS_64BIT_KERNEL 1375 select CPU_SUPPORTS_HIGHMEM 1376 select CPU_SUPPORTS_HUGEPAGES 1377 select CPU_HAS_LOAD_STORE_LR 1378 select WEAK_ORDERING 1379 select WEAK_REORDERING_BEYOND_LLSC 1380 select MIPS_PGD_C0_CONTEXT 1381 select MIPS_L1_CACHE_SHIFT_6 1382 select GPIOLIB 1383 select SWIOTLB 1384 help 1385 The Loongson 3 processor implements the MIPS64R2 instruction 1386 set with many extensions. 1387 1388config LOONGSON3_ENHANCEMENT 1389 bool "New Loongson 3 CPU Enhancements" 1390 default n 1391 select CPU_MIPSR2 1392 select CPU_HAS_PREFETCH 1393 depends on CPU_LOONGSON3 1394 help 1395 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A 1396 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1397 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User 1398 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1399 Fast TLB refill support, etc. 1400 1401 This option enable those enhancements which are not probed at run 1402 time. If you want a generic kernel to run on all Loongson 3 machines, 1403 please say 'N' here. If you want a high-performance kernel to run on 1404 new Loongson 3 machines only, please say 'Y' here. 1405 1406config CPU_LOONGSON3_WORKAROUNDS 1407 bool "Old Loongson 3 LLSC Workarounds" 1408 default y if SMP 1409 depends on CPU_LOONGSON3 1410 help 1411 Loongson 3 processors have the llsc issues which require workarounds. 1412 Without workarounds the system may hang unexpectedly. 1413 1414 Newer Loongson 3 will fix these issues and no workarounds are needed. 1415 The workarounds have no significant side effect on them but may 1416 decrease the performance of the system so this option should be 1417 disabled unless the kernel is intended to be run on old systems. 1418 1419 If unsure, please say Y. 1420 1421config CPU_LOONGSON2E 1422 bool "Loongson 2E" 1423 depends on SYS_HAS_CPU_LOONGSON2E 1424 select CPU_LOONGSON2 1425 help 1426 The Loongson 2E processor implements the MIPS III instruction set 1427 with many extensions. 1428 1429 It has an internal FPGA northbridge, which is compatible to 1430 bonito64. 1431 1432config CPU_LOONGSON2F 1433 bool "Loongson 2F" 1434 depends on SYS_HAS_CPU_LOONGSON2F 1435 select CPU_LOONGSON2 1436 select GPIOLIB 1437 help 1438 The Loongson 2F processor implements the MIPS III instruction set 1439 with many extensions. 1440 1441 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1442 have a similar programming interface with FPGA northbridge used in 1443 Loongson2E. 1444 1445config CPU_LOONGSON1B 1446 bool "Loongson 1B" 1447 depends on SYS_HAS_CPU_LOONGSON1B 1448 select CPU_LOONGSON1 1449 select LEDS_GPIO_REGISTER 1450 help 1451 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1452 Release 1 instruction set and part of the MIPS32 Release 2 1453 instruction set. 1454 1455config CPU_LOONGSON1C 1456 bool "Loongson 1C" 1457 depends on SYS_HAS_CPU_LOONGSON1C 1458 select CPU_LOONGSON1 1459 select LEDS_GPIO_REGISTER 1460 help 1461 The Loongson 1C is a 32-bit SoC, which implements the MIPS32 1462 Release 1 instruction set and part of the MIPS32 Release 2 1463 instruction set. 1464 1465config CPU_MIPS32_R1 1466 bool "MIPS32 Release 1" 1467 depends on SYS_HAS_CPU_MIPS32_R1 1468 select CPU_HAS_PREFETCH 1469 select CPU_HAS_LOAD_STORE_LR 1470 select CPU_SUPPORTS_32BIT_KERNEL 1471 select CPU_SUPPORTS_HIGHMEM 1472 help 1473 Choose this option to build a kernel for release 1 or later of the 1474 MIPS32 architecture. Most modern embedded systems with a 32-bit 1475 MIPS processor are based on a MIPS32 processor. If you know the 1476 specific type of processor in your system, choose those that one 1477 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1478 Release 2 of the MIPS32 architecture is available since several 1479 years so chances are you even have a MIPS32 Release 2 processor 1480 in which case you should choose CPU_MIPS32_R2 instead for better 1481 performance. 1482 1483config CPU_MIPS32_R2 1484 bool "MIPS32 Release 2" 1485 depends on SYS_HAS_CPU_MIPS32_R2 1486 select CPU_HAS_PREFETCH 1487 select CPU_HAS_LOAD_STORE_LR 1488 select CPU_SUPPORTS_32BIT_KERNEL 1489 select CPU_SUPPORTS_HIGHMEM 1490 select CPU_SUPPORTS_MSA 1491 select HAVE_KVM 1492 help 1493 Choose this option to build a kernel for release 2 or later of the 1494 MIPS32 architecture. Most modern embedded systems with a 32-bit 1495 MIPS processor are based on a MIPS32 processor. If you know the 1496 specific type of processor in your system, choose those that one 1497 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1498 1499config CPU_MIPS32_R6 1500 bool "MIPS32 Release 6" 1501 depends on SYS_HAS_CPU_MIPS32_R6 1502 select CPU_HAS_PREFETCH 1503 select CPU_SUPPORTS_32BIT_KERNEL 1504 select CPU_SUPPORTS_HIGHMEM 1505 select CPU_SUPPORTS_MSA 1506 select HAVE_KVM 1507 select MIPS_O32_FP64_SUPPORT 1508 help 1509 Choose this option to build a kernel for release 6 or later of the 1510 MIPS32 architecture. New MIPS processors, starting with the Warrior 1511 family, are based on a MIPS32r6 processor. If you own an older 1512 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1513 1514config CPU_MIPS64_R1 1515 bool "MIPS64 Release 1" 1516 depends on SYS_HAS_CPU_MIPS64_R1 1517 select CPU_HAS_PREFETCH 1518 select CPU_HAS_LOAD_STORE_LR 1519 select CPU_SUPPORTS_32BIT_KERNEL 1520 select CPU_SUPPORTS_64BIT_KERNEL 1521 select CPU_SUPPORTS_HIGHMEM 1522 select CPU_SUPPORTS_HUGEPAGES 1523 help 1524 Choose this option to build a kernel for release 1 or later of the 1525 MIPS64 architecture. Many modern embedded systems with a 64-bit 1526 MIPS processor are based on a MIPS64 processor. If you know the 1527 specific type of processor in your system, choose those that one 1528 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1529 Release 2 of the MIPS64 architecture is available since several 1530 years so chances are you even have a MIPS64 Release 2 processor 1531 in which case you should choose CPU_MIPS64_R2 instead for better 1532 performance. 1533 1534config CPU_MIPS64_R2 1535 bool "MIPS64 Release 2" 1536 depends on SYS_HAS_CPU_MIPS64_R2 1537 select CPU_HAS_PREFETCH 1538 select CPU_HAS_LOAD_STORE_LR 1539 select CPU_SUPPORTS_32BIT_KERNEL 1540 select CPU_SUPPORTS_64BIT_KERNEL 1541 select CPU_SUPPORTS_HIGHMEM 1542 select CPU_SUPPORTS_HUGEPAGES 1543 select CPU_SUPPORTS_MSA 1544 select HAVE_KVM 1545 help 1546 Choose this option to build a kernel for release 2 or later of the 1547 MIPS64 architecture. Many modern embedded systems with a 64-bit 1548 MIPS processor are based on a MIPS64 processor. If you know the 1549 specific type of processor in your system, choose those that one 1550 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1551 1552config CPU_MIPS64_R6 1553 bool "MIPS64 Release 6" 1554 depends on SYS_HAS_CPU_MIPS64_R6 1555 select CPU_HAS_PREFETCH 1556 select CPU_SUPPORTS_32BIT_KERNEL 1557 select CPU_SUPPORTS_64BIT_KERNEL 1558 select CPU_SUPPORTS_HIGHMEM 1559 select CPU_SUPPORTS_MSA 1560 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1561 select HAVE_KVM 1562 help 1563 Choose this option to build a kernel for release 6 or later of the 1564 MIPS64 architecture. New MIPS processors, starting with the Warrior 1565 family, are based on a MIPS64r6 processor. If you own an older 1566 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1567 1568config CPU_R3000 1569 bool "R3000" 1570 depends on SYS_HAS_CPU_R3000 1571 select CPU_HAS_WB 1572 select CPU_HAS_LOAD_STORE_LR 1573 select CPU_SUPPORTS_32BIT_KERNEL 1574 select CPU_SUPPORTS_HIGHMEM 1575 help 1576 Please make sure to pick the right CPU type. Linux/MIPS is not 1577 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1578 *not* work on R4000 machines and vice versa. However, since most 1579 of the supported machines have an R4000 (or similar) CPU, R4x00 1580 might be a safe bet. If the resulting kernel does not work, 1581 try to recompile with R3000. 1582 1583config CPU_TX39XX 1584 bool "R39XX" 1585 depends on SYS_HAS_CPU_TX39XX 1586 select CPU_SUPPORTS_32BIT_KERNEL 1587 select CPU_HAS_LOAD_STORE_LR 1588 1589config CPU_VR41XX 1590 bool "R41xx" 1591 depends on SYS_HAS_CPU_VR41XX 1592 select CPU_SUPPORTS_32BIT_KERNEL 1593 select CPU_SUPPORTS_64BIT_KERNEL 1594 select CPU_HAS_LOAD_STORE_LR 1595 help 1596 The options selects support for the NEC VR4100 series of processors. 1597 Only choose this option if you have one of these processors as a 1598 kernel built with this option will not run on any other type of 1599 processor or vice versa. 1600 1601config CPU_R4300 1602 bool "R4300" 1603 depends on SYS_HAS_CPU_R4300 1604 select CPU_SUPPORTS_32BIT_KERNEL 1605 select CPU_SUPPORTS_64BIT_KERNEL 1606 select CPU_HAS_LOAD_STORE_LR 1607 help 1608 MIPS Technologies R4300-series processors. 1609 1610config CPU_R4X00 1611 bool "R4x00" 1612 depends on SYS_HAS_CPU_R4X00 1613 select CPU_SUPPORTS_32BIT_KERNEL 1614 select CPU_SUPPORTS_64BIT_KERNEL 1615 select CPU_SUPPORTS_HUGEPAGES 1616 select CPU_HAS_LOAD_STORE_LR 1617 help 1618 MIPS Technologies R4000-series processors other than 4300, including 1619 the R4000, R4400, R4600, and 4700. 1620 1621config CPU_TX49XX 1622 bool "R49XX" 1623 depends on SYS_HAS_CPU_TX49XX 1624 select CPU_HAS_PREFETCH 1625 select CPU_HAS_LOAD_STORE_LR 1626 select CPU_SUPPORTS_32BIT_KERNEL 1627 select CPU_SUPPORTS_64BIT_KERNEL 1628 select CPU_SUPPORTS_HUGEPAGES 1629 1630config CPU_R5000 1631 bool "R5000" 1632 depends on SYS_HAS_CPU_R5000 1633 select CPU_SUPPORTS_32BIT_KERNEL 1634 select CPU_SUPPORTS_64BIT_KERNEL 1635 select CPU_SUPPORTS_HUGEPAGES 1636 select CPU_HAS_LOAD_STORE_LR 1637 help 1638 MIPS Technologies R5000-series processors other than the Nevada. 1639 1640config CPU_R5432 1641 bool "R5432" 1642 depends on SYS_HAS_CPU_R5432 1643 select CPU_SUPPORTS_32BIT_KERNEL 1644 select CPU_SUPPORTS_64BIT_KERNEL 1645 select CPU_SUPPORTS_HUGEPAGES 1646 select CPU_HAS_LOAD_STORE_LR 1647 1648config CPU_R5500 1649 bool "R5500" 1650 depends on SYS_HAS_CPU_R5500 1651 select CPU_SUPPORTS_32BIT_KERNEL 1652 select CPU_SUPPORTS_64BIT_KERNEL 1653 select CPU_SUPPORTS_HUGEPAGES 1654 select CPU_HAS_LOAD_STORE_LR 1655 help 1656 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1657 instruction set. 1658 1659config CPU_NEVADA 1660 bool "RM52xx" 1661 depends on SYS_HAS_CPU_NEVADA 1662 select CPU_SUPPORTS_32BIT_KERNEL 1663 select CPU_SUPPORTS_64BIT_KERNEL 1664 select CPU_SUPPORTS_HUGEPAGES 1665 select CPU_HAS_LOAD_STORE_LR 1666 help 1667 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1668 1669config CPU_R8000 1670 bool "R8000" 1671 depends on SYS_HAS_CPU_R8000 1672 select CPU_HAS_PREFETCH 1673 select CPU_HAS_LOAD_STORE_LR 1674 select CPU_SUPPORTS_64BIT_KERNEL 1675 help 1676 MIPS Technologies R8000 processors. Note these processors are 1677 uncommon and the support for them is incomplete. 1678 1679config CPU_R10000 1680 bool "R10000" 1681 depends on SYS_HAS_CPU_R10000 1682 select CPU_HAS_PREFETCH 1683 select CPU_HAS_LOAD_STORE_LR 1684 select CPU_SUPPORTS_32BIT_KERNEL 1685 select CPU_SUPPORTS_64BIT_KERNEL 1686 select CPU_SUPPORTS_HIGHMEM 1687 select CPU_SUPPORTS_HUGEPAGES 1688 help 1689 MIPS Technologies R10000-series processors. 1690 1691config CPU_RM7000 1692 bool "RM7000" 1693 depends on SYS_HAS_CPU_RM7000 1694 select CPU_HAS_PREFETCH 1695 select CPU_HAS_LOAD_STORE_LR 1696 select CPU_SUPPORTS_32BIT_KERNEL 1697 select CPU_SUPPORTS_64BIT_KERNEL 1698 select CPU_SUPPORTS_HIGHMEM 1699 select CPU_SUPPORTS_HUGEPAGES 1700 1701config CPU_SB1 1702 bool "SB1" 1703 depends on SYS_HAS_CPU_SB1 1704 select CPU_HAS_LOAD_STORE_LR 1705 select CPU_SUPPORTS_32BIT_KERNEL 1706 select CPU_SUPPORTS_64BIT_KERNEL 1707 select CPU_SUPPORTS_HIGHMEM 1708 select CPU_SUPPORTS_HUGEPAGES 1709 select WEAK_ORDERING 1710 1711config CPU_CAVIUM_OCTEON 1712 bool "Cavium Octeon processor" 1713 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1714 select CPU_HAS_PREFETCH 1715 select CPU_HAS_LOAD_STORE_LR 1716 select CPU_SUPPORTS_64BIT_KERNEL 1717 select WEAK_ORDERING 1718 select CPU_SUPPORTS_HIGHMEM 1719 select CPU_SUPPORTS_HUGEPAGES 1720 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1721 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1722 select MIPS_L1_CACHE_SHIFT_7 1723 select HAVE_KVM 1724 help 1725 The Cavium Octeon processor is a highly integrated chip containing 1726 many ethernet hardware widgets for networking tasks. The processor 1727 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1728 Full details can be found at http://www.caviumnetworks.com. 1729 1730config CPU_BMIPS 1731 bool "Broadcom BMIPS" 1732 depends on SYS_HAS_CPU_BMIPS 1733 select CPU_MIPS32 1734 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1735 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1736 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1737 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1738 select CPU_SUPPORTS_32BIT_KERNEL 1739 select DMA_NONCOHERENT 1740 select IRQ_MIPS_CPU 1741 select SWAP_IO_SPACE 1742 select WEAK_ORDERING 1743 select CPU_SUPPORTS_HIGHMEM 1744 select CPU_HAS_PREFETCH 1745 select CPU_HAS_LOAD_STORE_LR 1746 select CPU_SUPPORTS_CPUFREQ 1747 select MIPS_EXTERNAL_TIMER 1748 help 1749 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1750 1751config CPU_XLR 1752 bool "Netlogic XLR SoC" 1753 depends on SYS_HAS_CPU_XLR 1754 select CPU_HAS_LOAD_STORE_LR 1755 select CPU_SUPPORTS_32BIT_KERNEL 1756 select CPU_SUPPORTS_64BIT_KERNEL 1757 select CPU_SUPPORTS_HIGHMEM 1758 select CPU_SUPPORTS_HUGEPAGES 1759 select WEAK_ORDERING 1760 select WEAK_REORDERING_BEYOND_LLSC 1761 help 1762 Netlogic Microsystems XLR/XLS processors. 1763 1764config CPU_XLP 1765 bool "Netlogic XLP SoC" 1766 depends on SYS_HAS_CPU_XLP 1767 select CPU_SUPPORTS_32BIT_KERNEL 1768 select CPU_SUPPORTS_64BIT_KERNEL 1769 select CPU_SUPPORTS_HIGHMEM 1770 select WEAK_ORDERING 1771 select WEAK_REORDERING_BEYOND_LLSC 1772 select CPU_HAS_PREFETCH 1773 select CPU_HAS_LOAD_STORE_LR 1774 select CPU_MIPSR2 1775 select CPU_SUPPORTS_HUGEPAGES 1776 select MIPS_ASID_BITS_VARIABLE 1777 help 1778 Netlogic Microsystems XLP processors. 1779endchoice 1780 1781config CPU_MIPS32_3_5_FEATURES 1782 bool "MIPS32 Release 3.5 Features" 1783 depends on SYS_HAS_CPU_MIPS32_R3_5 1784 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6 1785 help 1786 Choose this option to build a kernel for release 2 or later of the 1787 MIPS32 architecture including features from the 3.5 release such as 1788 support for Enhanced Virtual Addressing (EVA). 1789 1790config CPU_MIPS32_3_5_EVA 1791 bool "Enhanced Virtual Addressing (EVA)" 1792 depends on CPU_MIPS32_3_5_FEATURES 1793 select EVA 1794 default y 1795 help 1796 Choose this option if you want to enable the Enhanced Virtual 1797 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1798 One of its primary benefits is an increase in the maximum size 1799 of lowmem (up to 3GB). If unsure, say 'N' here. 1800 1801config CPU_MIPS32_R5_FEATURES 1802 bool "MIPS32 Release 5 Features" 1803 depends on SYS_HAS_CPU_MIPS32_R5 1804 depends on CPU_MIPS32_R2 1805 help 1806 Choose this option to build a kernel for release 2 or later of the 1807 MIPS32 architecture including features from release 5 such as 1808 support for Extended Physical Addressing (XPA). 1809 1810config CPU_MIPS32_R5_XPA 1811 bool "Extended Physical Addressing (XPA)" 1812 depends on CPU_MIPS32_R5_FEATURES 1813 depends on !EVA 1814 depends on !PAGE_SIZE_4KB 1815 depends on SYS_SUPPORTS_HIGHMEM 1816 select XPA 1817 select HIGHMEM 1818 select PHYS_ADDR_T_64BIT 1819 default n 1820 help 1821 Choose this option if you want to enable the Extended Physical 1822 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1823 benefit is to increase physical addressing equal to or greater 1824 than 40 bits. Note that this has the side effect of turning on 1825 64-bit addressing which in turn makes the PTEs 64-bit in size. 1826 If unsure, say 'N' here. 1827 1828if CPU_LOONGSON2F 1829config CPU_NOP_WORKAROUNDS 1830 bool 1831 1832config CPU_JUMP_WORKAROUNDS 1833 bool 1834 1835config CPU_LOONGSON2F_WORKAROUNDS 1836 bool "Loongson 2F Workarounds" 1837 default y 1838 select CPU_NOP_WORKAROUNDS 1839 select CPU_JUMP_WORKAROUNDS 1840 help 1841 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1842 require workarounds. Without workarounds the system may hang 1843 unexpectedly. For more information please refer to the gas 1844 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1845 1846 Loongson 2F03 and later have fixed these issues and no workarounds 1847 are needed. The workarounds have no significant side effect on them 1848 but may decrease the performance of the system so this option should 1849 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1850 systems. 1851 1852 If unsure, please say Y. 1853endif # CPU_LOONGSON2F 1854 1855config SYS_SUPPORTS_ZBOOT 1856 bool 1857 select HAVE_KERNEL_GZIP 1858 select HAVE_KERNEL_BZIP2 1859 select HAVE_KERNEL_LZ4 1860 select HAVE_KERNEL_LZMA 1861 select HAVE_KERNEL_LZO 1862 select HAVE_KERNEL_XZ 1863 1864config SYS_SUPPORTS_ZBOOT_UART16550 1865 bool 1866 select SYS_SUPPORTS_ZBOOT 1867 1868config SYS_SUPPORTS_ZBOOT_UART_PROM 1869 bool 1870 select SYS_SUPPORTS_ZBOOT 1871 1872config CPU_LOONGSON2 1873 bool 1874 select CPU_SUPPORTS_32BIT_KERNEL 1875 select CPU_SUPPORTS_64BIT_KERNEL 1876 select CPU_SUPPORTS_HIGHMEM 1877 select CPU_SUPPORTS_HUGEPAGES 1878 select ARCH_HAS_PHYS_TO_DMA 1879 select CPU_HAS_LOAD_STORE_LR 1880 1881config CPU_LOONGSON1 1882 bool 1883 select CPU_MIPS32 1884 select CPU_MIPSR1 1885 select CPU_HAS_PREFETCH 1886 select CPU_HAS_LOAD_STORE_LR 1887 select CPU_SUPPORTS_32BIT_KERNEL 1888 select CPU_SUPPORTS_HIGHMEM 1889 select CPU_SUPPORTS_CPUFREQ 1890 1891config CPU_BMIPS32_3300 1892 select SMP_UP if SMP 1893 bool 1894 1895config CPU_BMIPS4350 1896 bool 1897 select SYS_SUPPORTS_SMP 1898 select SYS_SUPPORTS_HOTPLUG_CPU 1899 1900config CPU_BMIPS4380 1901 bool 1902 select MIPS_L1_CACHE_SHIFT_6 1903 select SYS_SUPPORTS_SMP 1904 select SYS_SUPPORTS_HOTPLUG_CPU 1905 select CPU_HAS_RIXI 1906 1907config CPU_BMIPS5000 1908 bool 1909 select MIPS_CPU_SCACHE 1910 select MIPS_L1_CACHE_SHIFT_7 1911 select SYS_SUPPORTS_SMP 1912 select SYS_SUPPORTS_HOTPLUG_CPU 1913 select CPU_HAS_RIXI 1914 1915config SYS_HAS_CPU_LOONGSON3 1916 bool 1917 select CPU_SUPPORTS_CPUFREQ 1918 select CPU_HAS_RIXI 1919 1920config SYS_HAS_CPU_LOONGSON2E 1921 bool 1922 1923config SYS_HAS_CPU_LOONGSON2F 1924 bool 1925 select CPU_SUPPORTS_CPUFREQ 1926 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1927 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1928 1929config SYS_HAS_CPU_LOONGSON1B 1930 bool 1931 1932config SYS_HAS_CPU_LOONGSON1C 1933 bool 1934 1935config SYS_HAS_CPU_MIPS32_R1 1936 bool 1937 1938config SYS_HAS_CPU_MIPS32_R2 1939 bool 1940 1941config SYS_HAS_CPU_MIPS32_R3_5 1942 bool 1943 1944config SYS_HAS_CPU_MIPS32_R5 1945 bool 1946 1947config SYS_HAS_CPU_MIPS32_R6 1948 bool 1949 1950config SYS_HAS_CPU_MIPS64_R1 1951 bool 1952 1953config SYS_HAS_CPU_MIPS64_R2 1954 bool 1955 1956config SYS_HAS_CPU_MIPS64_R6 1957 bool 1958 1959config SYS_HAS_CPU_R3000 1960 bool 1961 1962config SYS_HAS_CPU_TX39XX 1963 bool 1964 1965config SYS_HAS_CPU_VR41XX 1966 bool 1967 1968config SYS_HAS_CPU_R4300 1969 bool 1970 1971config SYS_HAS_CPU_R4X00 1972 bool 1973 1974config SYS_HAS_CPU_TX49XX 1975 bool 1976 1977config SYS_HAS_CPU_R5000 1978 bool 1979 1980config SYS_HAS_CPU_R5432 1981 bool 1982 1983config SYS_HAS_CPU_R5500 1984 bool 1985 1986config SYS_HAS_CPU_NEVADA 1987 bool 1988 1989config SYS_HAS_CPU_R8000 1990 bool 1991 1992config SYS_HAS_CPU_R10000 1993 bool 1994 1995config SYS_HAS_CPU_RM7000 1996 bool 1997 1998config SYS_HAS_CPU_SB1 1999 bool 2000 2001config SYS_HAS_CPU_CAVIUM_OCTEON 2002 bool 2003 2004config SYS_HAS_CPU_BMIPS 2005 bool 2006 2007config SYS_HAS_CPU_BMIPS32_3300 2008 bool 2009 select SYS_HAS_CPU_BMIPS 2010 2011config SYS_HAS_CPU_BMIPS4350 2012 bool 2013 select SYS_HAS_CPU_BMIPS 2014 2015config SYS_HAS_CPU_BMIPS4380 2016 bool 2017 select SYS_HAS_CPU_BMIPS 2018 2019config SYS_HAS_CPU_BMIPS5000 2020 bool 2021 select SYS_HAS_CPU_BMIPS 2022 2023config SYS_HAS_CPU_XLR 2024 bool 2025 2026config SYS_HAS_CPU_XLP 2027 bool 2028 2029# 2030# CPU may reorder R->R, R->W, W->R, W->W 2031# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 2032# 2033config WEAK_ORDERING 2034 bool 2035 2036# 2037# CPU may reorder reads and writes beyond LL/SC 2038# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 2039# 2040config WEAK_REORDERING_BEYOND_LLSC 2041 bool 2042endmenu 2043 2044# 2045# These two indicate any level of the MIPS32 and MIPS64 architecture 2046# 2047config CPU_MIPS32 2048 bool 2049 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6 2050 2051config CPU_MIPS64 2052 bool 2053 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 2054 2055# 2056# These indicate the revision of the architecture 2057# 2058config CPU_MIPSR1 2059 bool 2060 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 2061 2062config CPU_MIPSR2 2063 bool 2064 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2065 select CPU_HAS_RIXI 2066 select MIPS_SPRAM 2067 2068config CPU_MIPSR6 2069 bool 2070 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2071 select CPU_HAS_RIXI 2072 select HAVE_ARCH_BITREVERSE 2073 select MIPS_ASID_BITS_VARIABLE 2074 select MIPS_CRC_SUPPORT 2075 select MIPS_SPRAM 2076 2077config TARGET_ISA_REV 2078 int 2079 default 1 if CPU_MIPSR1 2080 default 2 if CPU_MIPSR2 2081 default 6 if CPU_MIPSR6 2082 default 0 2083 help 2084 Reflects the ISA revision being targeted by the kernel build. This 2085 is effectively the Kconfig equivalent of MIPS_ISA_REV. 2086 2087config EVA 2088 bool 2089 2090config XPA 2091 bool 2092 2093config SYS_SUPPORTS_32BIT_KERNEL 2094 bool 2095config SYS_SUPPORTS_64BIT_KERNEL 2096 bool 2097config CPU_SUPPORTS_32BIT_KERNEL 2098 bool 2099config CPU_SUPPORTS_64BIT_KERNEL 2100 bool 2101config CPU_SUPPORTS_CPUFREQ 2102 bool 2103config CPU_SUPPORTS_ADDRWINCFG 2104 bool 2105config CPU_SUPPORTS_HUGEPAGES 2106 bool 2107config CPU_SUPPORTS_UNCACHED_ACCELERATED 2108 bool 2109config MIPS_PGD_C0_CONTEXT 2110 bool 2111 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP 2112 2113# 2114# Set to y for ptrace access to watch registers. 2115# 2116config HARDWARE_WATCHPOINTS 2117 bool 2118 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2119 2120menu "Kernel type" 2121 2122choice 2123 prompt "Kernel code model" 2124 help 2125 You should only select this option if you have a workload that 2126 actually benefits from 64-bit processing or if your machine has 2127 large memory. You will only be presented a single option in this 2128 menu if your system does not support both 32-bit and 64-bit kernels. 2129 2130config 32BIT 2131 bool "32-bit kernel" 2132 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2133 select TRAD_SIGNALS 2134 help 2135 Select this option if you want to build a 32-bit kernel. 2136 2137config 64BIT 2138 bool "64-bit kernel" 2139 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2140 help 2141 Select this option if you want to build a 64-bit kernel. 2142 2143endchoice 2144 2145config KVM_GUEST 2146 bool "KVM Guest Kernel" 2147 depends on BROKEN_ON_SMP 2148 help 2149 Select this option if building a guest kernel for KVM (Trap & Emulate) 2150 mode. 2151 2152config KVM_GUEST_TIMER_FREQ 2153 int "Count/Compare Timer Frequency (MHz)" 2154 depends on KVM_GUEST 2155 default 100 2156 help 2157 Set this to non-zero if building a guest kernel for KVM to skip RTC 2158 emulation when determining guest CPU Frequency. Instead, the guest's 2159 timer frequency is specified directly. 2160 2161config MIPS_VA_BITS_48 2162 bool "48 bits virtual memory" 2163 depends on 64BIT 2164 help 2165 Support a maximum at least 48 bits of application virtual 2166 memory. Default is 40 bits or less, depending on the CPU. 2167 For page sizes 16k and above, this option results in a small 2168 memory overhead for page tables. For 4k page size, a fourth 2169 level of page tables is added which imposes both a memory 2170 overhead as well as slower TLB fault handling. 2171 2172 If unsure, say N. 2173 2174choice 2175 prompt "Kernel page size" 2176 default PAGE_SIZE_4KB 2177 2178config PAGE_SIZE_4KB 2179 bool "4kB" 2180 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3 2181 help 2182 This option select the standard 4kB Linux page size. On some 2183 R3000-family processors this is the only available page size. Using 2184 4kB page size will minimize memory consumption and is therefore 2185 recommended for low memory systems. 2186 2187config PAGE_SIZE_8KB 2188 bool "8kB" 2189 depends on CPU_R8000 || CPU_CAVIUM_OCTEON 2190 depends on !MIPS_VA_BITS_48 2191 help 2192 Using 8kB page size will result in higher performance kernel at 2193 the price of higher memory consumption. This option is available 2194 only on R8000 and cnMIPS processors. Note that you will need a 2195 suitable Linux distribution to support this. 2196 2197config PAGE_SIZE_16KB 2198 bool "16kB" 2199 depends on !CPU_R3000 && !CPU_TX39XX 2200 help 2201 Using 16kB page size will result in higher performance kernel at 2202 the price of higher memory consumption. This option is available on 2203 all non-R3000 family processors. Note that you will need a suitable 2204 Linux distribution to support this. 2205 2206config PAGE_SIZE_32KB 2207 bool "32kB" 2208 depends on CPU_CAVIUM_OCTEON 2209 depends on !MIPS_VA_BITS_48 2210 help 2211 Using 32kB page size will result in higher performance kernel at 2212 the price of higher memory consumption. This option is available 2213 only on cnMIPS cores. Note that you will need a suitable Linux 2214 distribution to support this. 2215 2216config PAGE_SIZE_64KB 2217 bool "64kB" 2218 depends on !CPU_R3000 && !CPU_TX39XX 2219 help 2220 Using 64kB page size will result in higher performance kernel at 2221 the price of higher memory consumption. This option is available on 2222 all non-R3000 family processor. Not that at the time of this 2223 writing this option is still high experimental. 2224 2225endchoice 2226 2227config FORCE_MAX_ZONEORDER 2228 int "Maximum zone order" 2229 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2230 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2231 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2232 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2233 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2234 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2235 range 11 64 2236 default "11" 2237 help 2238 The kernel memory allocator divides physically contiguous memory 2239 blocks into "zones", where each zone is a power of two number of 2240 pages. This option selects the largest power of two that the kernel 2241 keeps in the memory allocator. If you need to allocate very large 2242 blocks of physically contiguous memory, then you may need to 2243 increase this value. 2244 2245 This config option is actually maximum order plus one. For example, 2246 a value of 11 means that the largest free memory block is 2^10 pages. 2247 2248 The page size is not necessarily 4KB. Keep this in mind 2249 when choosing a value for this option. 2250 2251config BOARD_SCACHE 2252 bool 2253 2254config IP22_CPU_SCACHE 2255 bool 2256 select BOARD_SCACHE 2257 2258# 2259# Support for a MIPS32 / MIPS64 style S-caches 2260# 2261config MIPS_CPU_SCACHE 2262 bool 2263 select BOARD_SCACHE 2264 2265config R5000_CPU_SCACHE 2266 bool 2267 select BOARD_SCACHE 2268 2269config RM7000_CPU_SCACHE 2270 bool 2271 select BOARD_SCACHE 2272 2273config SIBYTE_DMA_PAGEOPS 2274 bool "Use DMA to clear/copy pages" 2275 depends on CPU_SB1 2276 help 2277 Instead of using the CPU to zero and copy pages, use a Data Mover 2278 channel. These DMA channels are otherwise unused by the standard 2279 SiByte Linux port. Seems to give a small performance benefit. 2280 2281config CPU_HAS_PREFETCH 2282 bool 2283 2284config CPU_GENERIC_DUMP_TLB 2285 bool 2286 default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX) 2287 2288config MIPS_FP_SUPPORT 2289 bool "Floating Point support" if EXPERT 2290 default y 2291 help 2292 Select y to include support for floating point in the kernel 2293 including initialization of FPU hardware, FP context save & restore 2294 and emulation of an FPU where necessary. Without this support any 2295 userland program attempting to use floating point instructions will 2296 receive a SIGILL. 2297 2298 If you know that your userland will not attempt to use floating point 2299 instructions then you can say n here to shrink the kernel a little. 2300 2301 If unsure, say y. 2302 2303config CPU_R2300_FPU 2304 bool 2305 depends on MIPS_FP_SUPPORT 2306 default y if CPU_R3000 || CPU_TX39XX 2307 2308config CPU_R4K_FPU 2309 bool 2310 depends on MIPS_FP_SUPPORT 2311 default y if !CPU_R2300_FPU 2312 2313config CPU_R4K_CACHE_TLB 2314 bool 2315 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 2316 2317config MIPS_MT_SMP 2318 bool "MIPS MT SMP support (1 TC on each available VPE)" 2319 default y 2320 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS 2321 select CPU_MIPSR2_IRQ_VI 2322 select CPU_MIPSR2_IRQ_EI 2323 select SYNC_R4K 2324 select MIPS_MT 2325 select SMP 2326 select SMP_UP 2327 select SYS_SUPPORTS_SMP 2328 select SYS_SUPPORTS_SCHED_SMT 2329 select MIPS_PERF_SHARED_TC_COUNTERS 2330 help 2331 This is a kernel model which is known as SMVP. This is supported 2332 on cores with the MT ASE and uses the available VPEs to implement 2333 virtual processors which supports SMP. This is equivalent to the 2334 Intel Hyperthreading feature. For further information go to 2335 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2336 2337config MIPS_MT 2338 bool 2339 2340config SCHED_SMT 2341 bool "SMT (multithreading) scheduler support" 2342 depends on SYS_SUPPORTS_SCHED_SMT 2343 default n 2344 help 2345 SMT scheduler support improves the CPU scheduler's decision making 2346 when dealing with MIPS MT enabled cores at a cost of slightly 2347 increased overhead in some places. If unsure say N here. 2348 2349config SYS_SUPPORTS_SCHED_SMT 2350 bool 2351 2352config SYS_SUPPORTS_MULTITHREADING 2353 bool 2354 2355config MIPS_MT_FPAFF 2356 bool "Dynamic FPU affinity for FP-intensive threads" 2357 default y 2358 depends on MIPS_MT_SMP 2359 2360config MIPSR2_TO_R6_EMULATOR 2361 bool "MIPS R2-to-R6 emulator" 2362 depends on CPU_MIPSR6 2363 depends on MIPS_FP_SUPPORT 2364 default y 2365 help 2366 Choose this option if you want to run non-R6 MIPS userland code. 2367 Even if you say 'Y' here, the emulator will still be disabled by 2368 default. You can enable it using the 'mipsr2emu' kernel option. 2369 The only reason this is a build-time option is to save ~14K from the 2370 final kernel image. 2371 2372config SYS_SUPPORTS_VPE_LOADER 2373 bool 2374 depends on SYS_SUPPORTS_MULTITHREADING 2375 help 2376 Indicates that the platform supports the VPE loader, and provides 2377 physical_memsize. 2378 2379config MIPS_VPE_LOADER 2380 bool "VPE loader support." 2381 depends on SYS_SUPPORTS_VPE_LOADER && MODULES 2382 select CPU_MIPSR2_IRQ_VI 2383 select CPU_MIPSR2_IRQ_EI 2384 select MIPS_MT 2385 help 2386 Includes a loader for loading an elf relocatable object 2387 onto another VPE and running it. 2388 2389config MIPS_VPE_LOADER_CMP 2390 bool 2391 default "y" 2392 depends on MIPS_VPE_LOADER && MIPS_CMP 2393 2394config MIPS_VPE_LOADER_MT 2395 bool 2396 default "y" 2397 depends on MIPS_VPE_LOADER && !MIPS_CMP 2398 2399config MIPS_VPE_LOADER_TOM 2400 bool "Load VPE program into memory hidden from linux" 2401 depends on MIPS_VPE_LOADER 2402 default y 2403 help 2404 The loader can use memory that is present but has been hidden from 2405 Linux using the kernel command line option "mem=xxMB". It's up to 2406 you to ensure the amount you put in the option and the space your 2407 program requires is less or equal to the amount physically present. 2408 2409config MIPS_VPE_APSP_API 2410 bool "Enable support for AP/SP API (RTLX)" 2411 depends on MIPS_VPE_LOADER 2412 2413config MIPS_VPE_APSP_API_CMP 2414 bool 2415 default "y" 2416 depends on MIPS_VPE_APSP_API && MIPS_CMP 2417 2418config MIPS_VPE_APSP_API_MT 2419 bool 2420 default "y" 2421 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2422 2423config MIPS_CMP 2424 bool "MIPS CMP framework support (DEPRECATED)" 2425 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2426 select SMP 2427 select SYNC_R4K 2428 select SYS_SUPPORTS_SMP 2429 select WEAK_ORDERING 2430 default n 2431 help 2432 Select this if you are using a bootloader which implements the "CMP 2433 framework" protocol (ie. YAMON) and want your kernel to make use of 2434 its ability to start secondary CPUs. 2435 2436 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2437 instead of this. 2438 2439config MIPS_CPS 2440 bool "MIPS Coherent Processing System support" 2441 depends on SYS_SUPPORTS_MIPS_CPS 2442 select MIPS_CM 2443 select MIPS_CPS_PM if HOTPLUG_CPU 2444 select SMP 2445 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2446 select SYS_SUPPORTS_HOTPLUG_CPU 2447 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6 2448 select SYS_SUPPORTS_SMP 2449 select WEAK_ORDERING 2450 help 2451 Select this if you wish to run an SMP kernel across multiple cores 2452 within a MIPS Coherent Processing System. When this option is 2453 enabled the kernel will probe for other cores and boot them with 2454 no external assistance. It is safe to enable this when hardware 2455 support is unavailable. 2456 2457config MIPS_CPS_PM 2458 depends on MIPS_CPS 2459 bool 2460 2461config MIPS_CM 2462 bool 2463 select MIPS_CPC 2464 2465config MIPS_CPC 2466 bool 2467 2468config SB1_PASS_2_WORKAROUNDS 2469 bool 2470 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2471 default y 2472 2473config SB1_PASS_2_1_WORKAROUNDS 2474 bool 2475 depends on CPU_SB1 && CPU_SB1_PASS_2 2476 default y 2477 2478 2479choice 2480 prompt "SmartMIPS or microMIPS ASE support" 2481 2482config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2483 bool "None" 2484 help 2485 Select this if you want neither microMIPS nor SmartMIPS support 2486 2487config CPU_HAS_SMARTMIPS 2488 depends on SYS_SUPPORTS_SMARTMIPS 2489 bool "SmartMIPS" 2490 help 2491 SmartMIPS is a extension of the MIPS32 architecture aimed at 2492 increased security at both hardware and software level for 2493 smartcards. Enabling this option will allow proper use of the 2494 SmartMIPS instructions by Linux applications. However a kernel with 2495 this option will not work on a MIPS core without SmartMIPS core. If 2496 you don't know you probably don't have SmartMIPS and should say N 2497 here. 2498 2499config CPU_MICROMIPS 2500 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2501 bool "microMIPS" 2502 help 2503 When this option is enabled the kernel will be built using the 2504 microMIPS ISA 2505 2506endchoice 2507 2508config CPU_HAS_MSA 2509 bool "Support for the MIPS SIMD Architecture" 2510 depends on CPU_SUPPORTS_MSA 2511 depends on MIPS_FP_SUPPORT 2512 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2513 help 2514 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2515 and a set of SIMD instructions to operate on them. When this option 2516 is enabled the kernel will support allocating & switching MSA 2517 vector register contexts. If you know that your kernel will only be 2518 running on CPUs which do not support MSA or that your userland will 2519 not be making use of it then you may wish to say N here to reduce 2520 the size & complexity of your kernel. 2521 2522 If unsure, say Y. 2523 2524config CPU_HAS_WB 2525 bool 2526 2527config XKS01 2528 bool 2529 2530config CPU_HAS_RIXI 2531 bool 2532 2533config CPU_HAS_LOAD_STORE_LR 2534 bool 2535 help 2536 CPU has support for unaligned load and store instructions: 2537 LWL, LWR, SWL, SWR (Load/store word left/right). 2538 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems). 2539 2540# 2541# Vectored interrupt mode is an R2 feature 2542# 2543config CPU_MIPSR2_IRQ_VI 2544 bool 2545 2546# 2547# Extended interrupt mode is an R2 feature 2548# 2549config CPU_MIPSR2_IRQ_EI 2550 bool 2551 2552config CPU_HAS_SYNC 2553 bool 2554 depends on !CPU_R3000 2555 default y 2556 2557# 2558# CPU non-features 2559# 2560config CPU_DADDI_WORKAROUNDS 2561 bool 2562 2563config CPU_R4000_WORKAROUNDS 2564 bool 2565 select CPU_R4400_WORKAROUNDS 2566 2567config CPU_R4400_WORKAROUNDS 2568 bool 2569 2570config MIPS_ASID_SHIFT 2571 int 2572 default 6 if CPU_R3000 || CPU_TX39XX 2573 default 4 if CPU_R8000 2574 default 0 2575 2576config MIPS_ASID_BITS 2577 int 2578 default 0 if MIPS_ASID_BITS_VARIABLE 2579 default 6 if CPU_R3000 || CPU_TX39XX 2580 default 8 2581 2582config MIPS_ASID_BITS_VARIABLE 2583 bool 2584 2585config MIPS_CRC_SUPPORT 2586 bool 2587 2588# 2589# - Highmem only makes sense for the 32-bit kernel. 2590# - The current highmem code will only work properly on physically indexed 2591# caches such as R3000, SB1, R7000 or those that look like they're virtually 2592# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2593# moment we protect the user and offer the highmem option only on machines 2594# where it's known to be safe. This will not offer highmem on a few systems 2595# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2596# indexed CPUs but we're playing safe. 2597# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2598# know they might have memory configurations that could make use of highmem 2599# support. 2600# 2601config HIGHMEM 2602 bool "High Memory Support" 2603 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2604 2605config CPU_SUPPORTS_HIGHMEM 2606 bool 2607 2608config SYS_SUPPORTS_HIGHMEM 2609 bool 2610 2611config SYS_SUPPORTS_SMARTMIPS 2612 bool 2613 2614config SYS_SUPPORTS_MICROMIPS 2615 bool 2616 2617config SYS_SUPPORTS_MIPS16 2618 bool 2619 help 2620 This option must be set if a kernel might be executed on a MIPS16- 2621 enabled CPU even if MIPS16 is not actually being used. In other 2622 words, it makes the kernel MIPS16-tolerant. 2623 2624config CPU_SUPPORTS_MSA 2625 bool 2626 2627config ARCH_FLATMEM_ENABLE 2628 def_bool y 2629 depends on !NUMA && !CPU_LOONGSON2 2630 2631config ARCH_DISCONTIGMEM_ENABLE 2632 bool 2633 default y if SGI_IP27 2634 help 2635 Say Y to support efficient handling of discontiguous physical memory, 2636 for architectures which are either NUMA (Non-Uniform Memory Access) 2637 or have huge holes in the physical address space for other reasons. 2638 See <file:Documentation/vm/numa.rst> for more. 2639 2640config ARCH_SPARSEMEM_ENABLE 2641 bool 2642 select SPARSEMEM_STATIC 2643 2644config NUMA 2645 bool "NUMA Support" 2646 depends on SYS_SUPPORTS_NUMA 2647 help 2648 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2649 Access). This option improves performance on systems with more 2650 than two nodes; on two node systems it is generally better to 2651 leave it disabled; on single node systems disable this option 2652 disabled. 2653 2654config SYS_SUPPORTS_NUMA 2655 bool 2656 2657config RELOCATABLE 2658 bool "Relocatable kernel" 2659 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC) 2660 help 2661 This builds a kernel image that retains relocation information 2662 so it can be loaded someplace besides the default 1MB. 2663 The relocations make the kernel binary about 15% larger, 2664 but are discarded at runtime 2665 2666config RELOCATION_TABLE_SIZE 2667 hex "Relocation table size" 2668 depends on RELOCATABLE 2669 range 0x0 0x01000000 2670 default "0x00100000" 2671 ---help--- 2672 A table of relocation data will be appended to the kernel binary 2673 and parsed at boot to fix up the relocated kernel. 2674 2675 This option allows the amount of space reserved for the table to be 2676 adjusted, although the default of 1Mb should be ok in most cases. 2677 2678 The build will fail and a valid size suggested if this is too small. 2679 2680 If unsure, leave at the default value. 2681 2682config RANDOMIZE_BASE 2683 bool "Randomize the address of the kernel image" 2684 depends on RELOCATABLE 2685 ---help--- 2686 Randomizes the physical and virtual address at which the 2687 kernel image is loaded, as a security feature that 2688 deters exploit attempts relying on knowledge of the location 2689 of kernel internals. 2690 2691 Entropy is generated using any coprocessor 0 registers available. 2692 2693 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2694 2695 If unsure, say N. 2696 2697config RANDOMIZE_BASE_MAX_OFFSET 2698 hex "Maximum kASLR offset" if EXPERT 2699 depends on RANDOMIZE_BASE 2700 range 0x0 0x40000000 if EVA || 64BIT 2701 range 0x0 0x08000000 2702 default "0x01000000" 2703 ---help--- 2704 When kASLR is active, this provides the maximum offset that will 2705 be applied to the kernel image. It should be set according to the 2706 amount of physical RAM available in the target system minus 2707 PHYSICAL_START and must be a power of 2. 2708 2709 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2710 EVA or 64-bit. The default is 16Mb. 2711 2712config NODES_SHIFT 2713 int 2714 default "6" 2715 depends on NEED_MULTIPLE_NODES 2716 2717config HW_PERF_EVENTS 2718 bool "Enable hardware performance counter support for perf events" 2719 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3) 2720 default y 2721 help 2722 Enable hardware performance counter support for perf events. If 2723 disabled, perf events will use software events only. 2724 2725config SMP 2726 bool "Multi-Processing support" 2727 depends on SYS_SUPPORTS_SMP 2728 help 2729 This enables support for systems with more than one CPU. If you have 2730 a system with only one CPU, say N. If you have a system with more 2731 than one CPU, say Y. 2732 2733 If you say N here, the kernel will run on uni- and multiprocessor 2734 machines, but will use only one CPU of a multiprocessor machine. If 2735 you say Y here, the kernel will run on many, but not all, 2736 uniprocessor machines. On a uniprocessor machine, the kernel 2737 will run faster if you say N here. 2738 2739 People using multiprocessor machines who say Y here should also say 2740 Y to "Enhanced Real Time Clock Support", below. 2741 2742 See also the SMP-HOWTO available at 2743 <http://www.tldp.org/docs.html#howto>. 2744 2745 If you don't know what to do here, say N. 2746 2747config HOTPLUG_CPU 2748 bool "Support for hot-pluggable CPUs" 2749 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 2750 help 2751 Say Y here to allow turning CPUs off and on. CPUs can be 2752 controlled through /sys/devices/system/cpu. 2753 (Note: power management support will enable this option 2754 automatically on SMP systems. ) 2755 Say N if you want to disable CPU hotplug. 2756 2757config SMP_UP 2758 bool 2759 2760config SYS_SUPPORTS_MIPS_CMP 2761 bool 2762 2763config SYS_SUPPORTS_MIPS_CPS 2764 bool 2765 2766config SYS_SUPPORTS_SMP 2767 bool 2768 2769config NR_CPUS_DEFAULT_4 2770 bool 2771 2772config NR_CPUS_DEFAULT_8 2773 bool 2774 2775config NR_CPUS_DEFAULT_16 2776 bool 2777 2778config NR_CPUS_DEFAULT_32 2779 bool 2780 2781config NR_CPUS_DEFAULT_64 2782 bool 2783 2784config NR_CPUS 2785 int "Maximum number of CPUs (2-256)" 2786 range 2 256 2787 depends on SMP 2788 default "4" if NR_CPUS_DEFAULT_4 2789 default "8" if NR_CPUS_DEFAULT_8 2790 default "16" if NR_CPUS_DEFAULT_16 2791 default "32" if NR_CPUS_DEFAULT_32 2792 default "64" if NR_CPUS_DEFAULT_64 2793 help 2794 This allows you to specify the maximum number of CPUs which this 2795 kernel will support. The maximum supported value is 32 for 32-bit 2796 kernel and 64 for 64-bit kernels; the minimum value which makes 2797 sense is 1 for Qemu (useful only for kernel debugging purposes) 2798 and 2 for all others. 2799 2800 This is purely to save memory - each supported CPU adds 2801 approximately eight kilobytes to the kernel image. For best 2802 performance should round up your number of processors to the next 2803 power of two. 2804 2805config MIPS_PERF_SHARED_TC_COUNTERS 2806 bool 2807 2808config MIPS_NR_CPU_NR_MAP_1024 2809 bool 2810 2811config MIPS_NR_CPU_NR_MAP 2812 int 2813 depends on SMP 2814 default 1024 if MIPS_NR_CPU_NR_MAP_1024 2815 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024 2816 2817# 2818# Timer Interrupt Frequency Configuration 2819# 2820 2821choice 2822 prompt "Timer frequency" 2823 default HZ_250 2824 help 2825 Allows the configuration of the timer frequency. 2826 2827 config HZ_24 2828 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2829 2830 config HZ_48 2831 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2832 2833 config HZ_100 2834 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2835 2836 config HZ_128 2837 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2838 2839 config HZ_250 2840 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2841 2842 config HZ_256 2843 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2844 2845 config HZ_1000 2846 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2847 2848 config HZ_1024 2849 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2850 2851endchoice 2852 2853config SYS_SUPPORTS_24HZ 2854 bool 2855 2856config SYS_SUPPORTS_48HZ 2857 bool 2858 2859config SYS_SUPPORTS_100HZ 2860 bool 2861 2862config SYS_SUPPORTS_128HZ 2863 bool 2864 2865config SYS_SUPPORTS_250HZ 2866 bool 2867 2868config SYS_SUPPORTS_256HZ 2869 bool 2870 2871config SYS_SUPPORTS_1000HZ 2872 bool 2873 2874config SYS_SUPPORTS_1024HZ 2875 bool 2876 2877config SYS_SUPPORTS_ARBIT_HZ 2878 bool 2879 default y if !SYS_SUPPORTS_24HZ && \ 2880 !SYS_SUPPORTS_48HZ && \ 2881 !SYS_SUPPORTS_100HZ && \ 2882 !SYS_SUPPORTS_128HZ && \ 2883 !SYS_SUPPORTS_250HZ && \ 2884 !SYS_SUPPORTS_256HZ && \ 2885 !SYS_SUPPORTS_1000HZ && \ 2886 !SYS_SUPPORTS_1024HZ 2887 2888config HZ 2889 int 2890 default 24 if HZ_24 2891 default 48 if HZ_48 2892 default 100 if HZ_100 2893 default 128 if HZ_128 2894 default 250 if HZ_250 2895 default 256 if HZ_256 2896 default 1000 if HZ_1000 2897 default 1024 if HZ_1024 2898 2899config SCHED_HRTICK 2900 def_bool HIGH_RES_TIMERS 2901 2902config KEXEC 2903 bool "Kexec system call" 2904 select KEXEC_CORE 2905 help 2906 kexec is a system call that implements the ability to shutdown your 2907 current kernel, and to start another kernel. It is like a reboot 2908 but it is independent of the system firmware. And like a reboot 2909 you can start any kernel with it, not just Linux. 2910 2911 The name comes from the similarity to the exec system call. 2912 2913 It is an ongoing process to be certain the hardware in a machine 2914 is properly shutdown, so do not be surprised if this code does not 2915 initially work for you. As of this writing the exact hardware 2916 interface is strongly in flux, so no good recommendation can be 2917 made. 2918 2919config CRASH_DUMP 2920 bool "Kernel crash dumps" 2921 help 2922 Generate crash dump after being started by kexec. 2923 This should be normally only set in special crash dump kernels 2924 which are loaded in the main kernel with kexec-tools into 2925 a specially reserved region and then later executed after 2926 a crash by kdump/kexec. The crash dump kernel must be compiled 2927 to a memory address not used by the main kernel or firmware using 2928 PHYSICAL_START. 2929 2930config PHYSICAL_START 2931 hex "Physical address where the kernel is loaded" 2932 default "0xffffffff84000000" 2933 depends on CRASH_DUMP 2934 help 2935 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2936 If you plan to use kernel for capturing the crash dump change 2937 this value to start of the reserved region (the "X" value as 2938 specified in the "crashkernel=YM@XM" command line boot parameter 2939 passed to the panic-ed kernel). 2940 2941config SECCOMP 2942 bool "Enable seccomp to safely compute untrusted bytecode" 2943 depends on PROC_FS 2944 default y 2945 help 2946 This kernel feature is useful for number crunching applications 2947 that may need to compute untrusted bytecode during their 2948 execution. By using pipes or other transports made available to 2949 the process as file descriptors supporting the read/write 2950 syscalls, it's possible to isolate those applications in 2951 their own address space using seccomp. Once seccomp is 2952 enabled via /proc/<pid>/seccomp, it cannot be disabled 2953 and the task is only allowed to execute a few safe syscalls 2954 defined by each seccomp mode. 2955 2956 If unsure, say Y. Only embedded should say N here. 2957 2958config MIPS_O32_FP64_SUPPORT 2959 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6 2960 depends on 32BIT || MIPS32_O32 2961 help 2962 When this is enabled, the kernel will support use of 64-bit floating 2963 point registers with binaries using the O32 ABI along with the 2964 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 2965 32-bit MIPS systems this support is at the cost of increasing the 2966 size and complexity of the compiled FPU emulator. Thus if you are 2967 running a MIPS32 system and know that none of your userland binaries 2968 will require 64-bit floating point, you may wish to reduce the size 2969 of your kernel & potentially improve FP emulation performance by 2970 saying N here. 2971 2972 Although binutils currently supports use of this flag the details 2973 concerning its effect upon the O32 ABI in userland are still being 2974 worked on. In order to avoid userland becoming dependant upon current 2975 behaviour before the details have been finalised, this option should 2976 be considered experimental and only enabled by those working upon 2977 said details. 2978 2979 If unsure, say N. 2980 2981config USE_OF 2982 bool 2983 select OF 2984 select OF_EARLY_FLATTREE 2985 select IRQ_DOMAIN 2986 2987config UHI_BOOT 2988 bool 2989 2990config BUILTIN_DTB 2991 bool 2992 2993choice 2994 prompt "Kernel appended dtb support" if USE_OF 2995 default MIPS_NO_APPENDED_DTB 2996 2997 config MIPS_NO_APPENDED_DTB 2998 bool "None" 2999 help 3000 Do not enable appended dtb support. 3001 3002 config MIPS_ELF_APPENDED_DTB 3003 bool "vmlinux" 3004 help 3005 With this option, the boot code will look for a device tree binary 3006 DTB) included in the vmlinux ELF section .appended_dtb. By default 3007 it is empty and the DTB can be appended using binutils command 3008 objcopy: 3009 3010 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 3011 3012 This is meant as a backward compatiblity convenience for those 3013 systems with a bootloader that can't be upgraded to accommodate 3014 the documented boot protocol using a device tree. 3015 3016 config MIPS_RAW_APPENDED_DTB 3017 bool "vmlinux.bin or vmlinuz.bin" 3018 help 3019 With this option, the boot code will look for a device tree binary 3020 DTB) appended to raw vmlinux.bin or vmlinuz.bin. 3021 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 3022 3023 This is meant as a backward compatibility convenience for those 3024 systems with a bootloader that can't be upgraded to accommodate 3025 the documented boot protocol using a device tree. 3026 3027 Beware that there is very little in terms of protection against 3028 this option being confused by leftover garbage in memory that might 3029 look like a DTB header after a reboot if no actual DTB is appended 3030 to vmlinux.bin. Do not leave this option active in a production kernel 3031 if you don't intend to always append a DTB. 3032endchoice 3033 3034choice 3035 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 3036 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 3037 !MIPS_MALTA && \ 3038 !CAVIUM_OCTEON_SOC 3039 default MIPS_CMDLINE_FROM_BOOTLOADER 3040 3041 config MIPS_CMDLINE_FROM_DTB 3042 depends on USE_OF 3043 bool "Dtb kernel arguments if available" 3044 3045 config MIPS_CMDLINE_DTB_EXTEND 3046 depends on USE_OF 3047 bool "Extend dtb kernel arguments with bootloader arguments" 3048 3049 config MIPS_CMDLINE_FROM_BOOTLOADER 3050 bool "Bootloader kernel arguments if available" 3051 3052 config MIPS_CMDLINE_BUILTIN_EXTEND 3053 depends on CMDLINE_BOOL 3054 bool "Extend builtin kernel arguments with bootloader arguments" 3055endchoice 3056 3057endmenu 3058 3059config LOCKDEP_SUPPORT 3060 bool 3061 default y 3062 3063config STACKTRACE_SUPPORT 3064 bool 3065 default y 3066 3067config HAVE_LATENCYTOP_SUPPORT 3068 bool 3069 default y 3070 3071config PGTABLE_LEVELS 3072 int 3073 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48 3074 default 3 if 64BIT && !PAGE_SIZE_64KB 3075 default 2 3076 3077config MIPS_AUTO_PFN_OFFSET 3078 bool 3079 3080menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 3081 3082config PCI_DRIVERS_GENERIC 3083 select PCI_DOMAINS_GENERIC if PCI 3084 bool 3085 3086config PCI_DRIVERS_LEGACY 3087 def_bool !PCI_DRIVERS_GENERIC 3088 select NO_GENERIC_PCI_IOPORT_MAP 3089 select PCI_DOMAINS if PCI 3090 3091# 3092# ISA support is now enabled via select. Too many systems still have the one 3093# or other ISA chip on the board that users don't know about so don't expect 3094# users to choose the right thing ... 3095# 3096config ISA 3097 bool 3098 3099config TC 3100 bool "TURBOchannel support" 3101 depends on MACH_DECSTATION 3102 help 3103 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3104 processors. TURBOchannel programming specifications are available 3105 at: 3106 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3107 and: 3108 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3109 Linux driver support status is documented at: 3110 <http://www.linux-mips.org/wiki/DECstation> 3111 3112config MMU 3113 bool 3114 default y 3115 3116config ARCH_MMAP_RND_BITS_MIN 3117 default 12 if 64BIT 3118 default 8 3119 3120config ARCH_MMAP_RND_BITS_MAX 3121 default 18 if 64BIT 3122 default 15 3123 3124config ARCH_MMAP_RND_COMPAT_BITS_MIN 3125 default 8 3126 3127config ARCH_MMAP_RND_COMPAT_BITS_MAX 3128 default 15 3129 3130config I8253 3131 bool 3132 select CLKSRC_I8253 3133 select CLKEVT_I8253 3134 select MIPS_EXTERNAL_TIMER 3135 3136config ZONE_DMA 3137 bool 3138 3139config ZONE_DMA32 3140 bool 3141 3142endmenu 3143 3144config TRAD_SIGNALS 3145 bool 3146 3147config MIPS32_COMPAT 3148 bool 3149 3150config COMPAT 3151 bool 3152 3153config SYSVIPC_COMPAT 3154 bool 3155 3156config MIPS32_O32 3157 bool "Kernel support for o32 binaries" 3158 depends on 64BIT 3159 select ARCH_WANT_OLD_COMPAT_IPC 3160 select COMPAT 3161 select MIPS32_COMPAT 3162 select SYSVIPC_COMPAT if SYSVIPC 3163 help 3164 Select this option if you want to run o32 binaries. These are pure 3165 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3166 existing binaries are in this format. 3167 3168 If unsure, say Y. 3169 3170config MIPS32_N32 3171 bool "Kernel support for n32 binaries" 3172 depends on 64BIT 3173 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION 3174 select COMPAT 3175 select MIPS32_COMPAT 3176 select SYSVIPC_COMPAT if SYSVIPC 3177 help 3178 Select this option if you want to run n32 binaries. These are 3179 64-bit binaries using 32-bit quantities for addressing and certain 3180 data that would normally be 64-bit. They are used in special 3181 cases. 3182 3183 If unsure, say N. 3184 3185config BINFMT_ELF32 3186 bool 3187 default y if MIPS32_O32 || MIPS32_N32 3188 select ELFCORE 3189 3190menu "Power management options" 3191 3192config ARCH_HIBERNATION_POSSIBLE 3193 def_bool y 3194 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3195 3196config ARCH_SUSPEND_POSSIBLE 3197 def_bool y 3198 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3199 3200source "kernel/power/Kconfig" 3201 3202endmenu 3203 3204config MIPS_EXTERNAL_TIMER 3205 bool 3206 3207menu "CPU Power Management" 3208 3209if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3210source "drivers/cpufreq/Kconfig" 3211endif 3212 3213source "drivers/cpuidle/Kconfig" 3214 3215endmenu 3216 3217source "drivers/firmware/Kconfig" 3218 3219source "arch/mips/kvm/Kconfig" 3220