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_LOONGSON2E 1407 bool "Loongson 2E" 1408 depends on SYS_HAS_CPU_LOONGSON2E 1409 select CPU_LOONGSON2 1410 help 1411 The Loongson 2E processor implements the MIPS III instruction set 1412 with many extensions. 1413 1414 It has an internal FPGA northbridge, which is compatible to 1415 bonito64. 1416 1417config CPU_LOONGSON2F 1418 bool "Loongson 2F" 1419 depends on SYS_HAS_CPU_LOONGSON2F 1420 select CPU_LOONGSON2 1421 select GPIOLIB 1422 help 1423 The Loongson 2F processor implements the MIPS III instruction set 1424 with many extensions. 1425 1426 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1427 have a similar programming interface with FPGA northbridge used in 1428 Loongson2E. 1429 1430config CPU_LOONGSON1B 1431 bool "Loongson 1B" 1432 depends on SYS_HAS_CPU_LOONGSON1B 1433 select CPU_LOONGSON1 1434 select LEDS_GPIO_REGISTER 1435 help 1436 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1437 Release 1 instruction set and part of the MIPS32 Release 2 1438 instruction set. 1439 1440config CPU_LOONGSON1C 1441 bool "Loongson 1C" 1442 depends on SYS_HAS_CPU_LOONGSON1C 1443 select CPU_LOONGSON1 1444 select LEDS_GPIO_REGISTER 1445 help 1446 The Loongson 1C is a 32-bit SoC, which implements the MIPS32 1447 Release 1 instruction set and part of the MIPS32 Release 2 1448 instruction set. 1449 1450config CPU_MIPS32_R1 1451 bool "MIPS32 Release 1" 1452 depends on SYS_HAS_CPU_MIPS32_R1 1453 select CPU_HAS_PREFETCH 1454 select CPU_HAS_LOAD_STORE_LR 1455 select CPU_SUPPORTS_32BIT_KERNEL 1456 select CPU_SUPPORTS_HIGHMEM 1457 help 1458 Choose this option to build a kernel for release 1 or later of the 1459 MIPS32 architecture. Most modern embedded systems with a 32-bit 1460 MIPS processor are based on a MIPS32 processor. If you know the 1461 specific type of processor in your system, choose those that one 1462 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1463 Release 2 of the MIPS32 architecture is available since several 1464 years so chances are you even have a MIPS32 Release 2 processor 1465 in which case you should choose CPU_MIPS32_R2 instead for better 1466 performance. 1467 1468config CPU_MIPS32_R2 1469 bool "MIPS32 Release 2" 1470 depends on SYS_HAS_CPU_MIPS32_R2 1471 select CPU_HAS_PREFETCH 1472 select CPU_HAS_LOAD_STORE_LR 1473 select CPU_SUPPORTS_32BIT_KERNEL 1474 select CPU_SUPPORTS_HIGHMEM 1475 select CPU_SUPPORTS_MSA 1476 select HAVE_KVM 1477 help 1478 Choose this option to build a kernel for release 2 or later of the 1479 MIPS32 architecture. Most modern embedded systems with a 32-bit 1480 MIPS processor are based on a MIPS32 processor. If you know the 1481 specific type of processor in your system, choose those that one 1482 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1483 1484config CPU_MIPS32_R6 1485 bool "MIPS32 Release 6" 1486 depends on SYS_HAS_CPU_MIPS32_R6 1487 select CPU_HAS_PREFETCH 1488 select CPU_SUPPORTS_32BIT_KERNEL 1489 select CPU_SUPPORTS_HIGHMEM 1490 select CPU_SUPPORTS_MSA 1491 select HAVE_KVM 1492 select MIPS_O32_FP64_SUPPORT 1493 help 1494 Choose this option to build a kernel for release 6 or later of the 1495 MIPS32 architecture. New MIPS processors, starting with the Warrior 1496 family, are based on a MIPS32r6 processor. If you own an older 1497 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1498 1499config CPU_MIPS64_R1 1500 bool "MIPS64 Release 1" 1501 depends on SYS_HAS_CPU_MIPS64_R1 1502 select CPU_HAS_PREFETCH 1503 select CPU_HAS_LOAD_STORE_LR 1504 select CPU_SUPPORTS_32BIT_KERNEL 1505 select CPU_SUPPORTS_64BIT_KERNEL 1506 select CPU_SUPPORTS_HIGHMEM 1507 select CPU_SUPPORTS_HUGEPAGES 1508 help 1509 Choose this option to build a kernel for release 1 or later of the 1510 MIPS64 architecture. Many modern embedded systems with a 64-bit 1511 MIPS processor are based on a MIPS64 processor. If you know the 1512 specific type of processor in your system, choose those that one 1513 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1514 Release 2 of the MIPS64 architecture is available since several 1515 years so chances are you even have a MIPS64 Release 2 processor 1516 in which case you should choose CPU_MIPS64_R2 instead for better 1517 performance. 1518 1519config CPU_MIPS64_R2 1520 bool "MIPS64 Release 2" 1521 depends on SYS_HAS_CPU_MIPS64_R2 1522 select CPU_HAS_PREFETCH 1523 select CPU_HAS_LOAD_STORE_LR 1524 select CPU_SUPPORTS_32BIT_KERNEL 1525 select CPU_SUPPORTS_64BIT_KERNEL 1526 select CPU_SUPPORTS_HIGHMEM 1527 select CPU_SUPPORTS_HUGEPAGES 1528 select CPU_SUPPORTS_MSA 1529 select HAVE_KVM 1530 help 1531 Choose this option to build a kernel for release 2 or later of the 1532 MIPS64 architecture. Many modern embedded systems with a 64-bit 1533 MIPS processor are based on a MIPS64 processor. If you know the 1534 specific type of processor in your system, choose those that one 1535 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1536 1537config CPU_MIPS64_R6 1538 bool "MIPS64 Release 6" 1539 depends on SYS_HAS_CPU_MIPS64_R6 1540 select CPU_HAS_PREFETCH 1541 select CPU_SUPPORTS_32BIT_KERNEL 1542 select CPU_SUPPORTS_64BIT_KERNEL 1543 select CPU_SUPPORTS_HIGHMEM 1544 select CPU_SUPPORTS_MSA 1545 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1546 select HAVE_KVM 1547 help 1548 Choose this option to build a kernel for release 6 or later of the 1549 MIPS64 architecture. New MIPS processors, starting with the Warrior 1550 family, are based on a MIPS64r6 processor. If you own an older 1551 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1552 1553config CPU_R3000 1554 bool "R3000" 1555 depends on SYS_HAS_CPU_R3000 1556 select CPU_HAS_WB 1557 select CPU_HAS_LOAD_STORE_LR 1558 select CPU_SUPPORTS_32BIT_KERNEL 1559 select CPU_SUPPORTS_HIGHMEM 1560 help 1561 Please make sure to pick the right CPU type. Linux/MIPS is not 1562 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1563 *not* work on R4000 machines and vice versa. However, since most 1564 of the supported machines have an R4000 (or similar) CPU, R4x00 1565 might be a safe bet. If the resulting kernel does not work, 1566 try to recompile with R3000. 1567 1568config CPU_TX39XX 1569 bool "R39XX" 1570 depends on SYS_HAS_CPU_TX39XX 1571 select CPU_SUPPORTS_32BIT_KERNEL 1572 select CPU_HAS_LOAD_STORE_LR 1573 1574config CPU_VR41XX 1575 bool "R41xx" 1576 depends on SYS_HAS_CPU_VR41XX 1577 select CPU_SUPPORTS_32BIT_KERNEL 1578 select CPU_SUPPORTS_64BIT_KERNEL 1579 select CPU_HAS_LOAD_STORE_LR 1580 help 1581 The options selects support for the NEC VR4100 series of processors. 1582 Only choose this option if you have one of these processors as a 1583 kernel built with this option will not run on any other type of 1584 processor or vice versa. 1585 1586config CPU_R4300 1587 bool "R4300" 1588 depends on SYS_HAS_CPU_R4300 1589 select CPU_SUPPORTS_32BIT_KERNEL 1590 select CPU_SUPPORTS_64BIT_KERNEL 1591 select CPU_HAS_LOAD_STORE_LR 1592 help 1593 MIPS Technologies R4300-series processors. 1594 1595config CPU_R4X00 1596 bool "R4x00" 1597 depends on SYS_HAS_CPU_R4X00 1598 select CPU_SUPPORTS_32BIT_KERNEL 1599 select CPU_SUPPORTS_64BIT_KERNEL 1600 select CPU_SUPPORTS_HUGEPAGES 1601 select CPU_HAS_LOAD_STORE_LR 1602 help 1603 MIPS Technologies R4000-series processors other than 4300, including 1604 the R4000, R4400, R4600, and 4700. 1605 1606config CPU_TX49XX 1607 bool "R49XX" 1608 depends on SYS_HAS_CPU_TX49XX 1609 select CPU_HAS_PREFETCH 1610 select CPU_HAS_LOAD_STORE_LR 1611 select CPU_SUPPORTS_32BIT_KERNEL 1612 select CPU_SUPPORTS_64BIT_KERNEL 1613 select CPU_SUPPORTS_HUGEPAGES 1614 1615config CPU_R5000 1616 bool "R5000" 1617 depends on SYS_HAS_CPU_R5000 1618 select CPU_SUPPORTS_32BIT_KERNEL 1619 select CPU_SUPPORTS_64BIT_KERNEL 1620 select CPU_SUPPORTS_HUGEPAGES 1621 select CPU_HAS_LOAD_STORE_LR 1622 help 1623 MIPS Technologies R5000-series processors other than the Nevada. 1624 1625config CPU_R5432 1626 bool "R5432" 1627 depends on SYS_HAS_CPU_R5432 1628 select CPU_SUPPORTS_32BIT_KERNEL 1629 select CPU_SUPPORTS_64BIT_KERNEL 1630 select CPU_SUPPORTS_HUGEPAGES 1631 select CPU_HAS_LOAD_STORE_LR 1632 1633config CPU_R5500 1634 bool "R5500" 1635 depends on SYS_HAS_CPU_R5500 1636 select CPU_SUPPORTS_32BIT_KERNEL 1637 select CPU_SUPPORTS_64BIT_KERNEL 1638 select CPU_SUPPORTS_HUGEPAGES 1639 select CPU_HAS_LOAD_STORE_LR 1640 help 1641 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1642 instruction set. 1643 1644config CPU_NEVADA 1645 bool "RM52xx" 1646 depends on SYS_HAS_CPU_NEVADA 1647 select CPU_SUPPORTS_32BIT_KERNEL 1648 select CPU_SUPPORTS_64BIT_KERNEL 1649 select CPU_SUPPORTS_HUGEPAGES 1650 select CPU_HAS_LOAD_STORE_LR 1651 help 1652 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1653 1654config CPU_R8000 1655 bool "R8000" 1656 depends on SYS_HAS_CPU_R8000 1657 select CPU_HAS_PREFETCH 1658 select CPU_HAS_LOAD_STORE_LR 1659 select CPU_SUPPORTS_64BIT_KERNEL 1660 help 1661 MIPS Technologies R8000 processors. Note these processors are 1662 uncommon and the support for them is incomplete. 1663 1664config CPU_R10000 1665 bool "R10000" 1666 depends on SYS_HAS_CPU_R10000 1667 select CPU_HAS_PREFETCH 1668 select CPU_HAS_LOAD_STORE_LR 1669 select CPU_SUPPORTS_32BIT_KERNEL 1670 select CPU_SUPPORTS_64BIT_KERNEL 1671 select CPU_SUPPORTS_HIGHMEM 1672 select CPU_SUPPORTS_HUGEPAGES 1673 help 1674 MIPS Technologies R10000-series processors. 1675 1676config CPU_RM7000 1677 bool "RM7000" 1678 depends on SYS_HAS_CPU_RM7000 1679 select CPU_HAS_PREFETCH 1680 select CPU_HAS_LOAD_STORE_LR 1681 select CPU_SUPPORTS_32BIT_KERNEL 1682 select CPU_SUPPORTS_64BIT_KERNEL 1683 select CPU_SUPPORTS_HIGHMEM 1684 select CPU_SUPPORTS_HUGEPAGES 1685 1686config CPU_SB1 1687 bool "SB1" 1688 depends on SYS_HAS_CPU_SB1 1689 select CPU_HAS_LOAD_STORE_LR 1690 select CPU_SUPPORTS_32BIT_KERNEL 1691 select CPU_SUPPORTS_64BIT_KERNEL 1692 select CPU_SUPPORTS_HIGHMEM 1693 select CPU_SUPPORTS_HUGEPAGES 1694 select WEAK_ORDERING 1695 1696config CPU_CAVIUM_OCTEON 1697 bool "Cavium Octeon processor" 1698 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1699 select CPU_HAS_PREFETCH 1700 select CPU_HAS_LOAD_STORE_LR 1701 select CPU_SUPPORTS_64BIT_KERNEL 1702 select WEAK_ORDERING 1703 select CPU_SUPPORTS_HIGHMEM 1704 select CPU_SUPPORTS_HUGEPAGES 1705 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1706 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1707 select MIPS_L1_CACHE_SHIFT_7 1708 select HAVE_KVM 1709 help 1710 The Cavium Octeon processor is a highly integrated chip containing 1711 many ethernet hardware widgets for networking tasks. The processor 1712 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1713 Full details can be found at http://www.caviumnetworks.com. 1714 1715config CPU_BMIPS 1716 bool "Broadcom BMIPS" 1717 depends on SYS_HAS_CPU_BMIPS 1718 select CPU_MIPS32 1719 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1720 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1721 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1722 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1723 select CPU_SUPPORTS_32BIT_KERNEL 1724 select DMA_NONCOHERENT 1725 select IRQ_MIPS_CPU 1726 select SWAP_IO_SPACE 1727 select WEAK_ORDERING 1728 select CPU_SUPPORTS_HIGHMEM 1729 select CPU_HAS_PREFETCH 1730 select CPU_HAS_LOAD_STORE_LR 1731 select CPU_SUPPORTS_CPUFREQ 1732 select MIPS_EXTERNAL_TIMER 1733 help 1734 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1735 1736config CPU_XLR 1737 bool "Netlogic XLR SoC" 1738 depends on SYS_HAS_CPU_XLR 1739 select CPU_HAS_LOAD_STORE_LR 1740 select CPU_SUPPORTS_32BIT_KERNEL 1741 select CPU_SUPPORTS_64BIT_KERNEL 1742 select CPU_SUPPORTS_HIGHMEM 1743 select CPU_SUPPORTS_HUGEPAGES 1744 select WEAK_ORDERING 1745 select WEAK_REORDERING_BEYOND_LLSC 1746 help 1747 Netlogic Microsystems XLR/XLS processors. 1748 1749config CPU_XLP 1750 bool "Netlogic XLP SoC" 1751 depends on SYS_HAS_CPU_XLP 1752 select CPU_SUPPORTS_32BIT_KERNEL 1753 select CPU_SUPPORTS_64BIT_KERNEL 1754 select CPU_SUPPORTS_HIGHMEM 1755 select WEAK_ORDERING 1756 select WEAK_REORDERING_BEYOND_LLSC 1757 select CPU_HAS_PREFETCH 1758 select CPU_HAS_LOAD_STORE_LR 1759 select CPU_MIPSR2 1760 select CPU_SUPPORTS_HUGEPAGES 1761 select MIPS_ASID_BITS_VARIABLE 1762 help 1763 Netlogic Microsystems XLP processors. 1764endchoice 1765 1766config CPU_MIPS32_3_5_FEATURES 1767 bool "MIPS32 Release 3.5 Features" 1768 depends on SYS_HAS_CPU_MIPS32_R3_5 1769 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6 1770 help 1771 Choose this option to build a kernel for release 2 or later of the 1772 MIPS32 architecture including features from the 3.5 release such as 1773 support for Enhanced Virtual Addressing (EVA). 1774 1775config CPU_MIPS32_3_5_EVA 1776 bool "Enhanced Virtual Addressing (EVA)" 1777 depends on CPU_MIPS32_3_5_FEATURES 1778 select EVA 1779 default y 1780 help 1781 Choose this option if you want to enable the Enhanced Virtual 1782 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1783 One of its primary benefits is an increase in the maximum size 1784 of lowmem (up to 3GB). If unsure, say 'N' here. 1785 1786config CPU_MIPS32_R5_FEATURES 1787 bool "MIPS32 Release 5 Features" 1788 depends on SYS_HAS_CPU_MIPS32_R5 1789 depends on CPU_MIPS32_R2 1790 help 1791 Choose this option to build a kernel for release 2 or later of the 1792 MIPS32 architecture including features from release 5 such as 1793 support for Extended Physical Addressing (XPA). 1794 1795config CPU_MIPS32_R5_XPA 1796 bool "Extended Physical Addressing (XPA)" 1797 depends on CPU_MIPS32_R5_FEATURES 1798 depends on !EVA 1799 depends on !PAGE_SIZE_4KB 1800 depends on SYS_SUPPORTS_HIGHMEM 1801 select XPA 1802 select HIGHMEM 1803 select PHYS_ADDR_T_64BIT 1804 default n 1805 help 1806 Choose this option if you want to enable the Extended Physical 1807 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1808 benefit is to increase physical addressing equal to or greater 1809 than 40 bits. Note that this has the side effect of turning on 1810 64-bit addressing which in turn makes the PTEs 64-bit in size. 1811 If unsure, say 'N' here. 1812 1813if CPU_LOONGSON2F 1814config CPU_NOP_WORKAROUNDS 1815 bool 1816 1817config CPU_JUMP_WORKAROUNDS 1818 bool 1819 1820config CPU_LOONGSON2F_WORKAROUNDS 1821 bool "Loongson 2F Workarounds" 1822 default y 1823 select CPU_NOP_WORKAROUNDS 1824 select CPU_JUMP_WORKAROUNDS 1825 help 1826 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1827 require workarounds. Without workarounds the system may hang 1828 unexpectedly. For more information please refer to the gas 1829 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1830 1831 Loongson 2F03 and later have fixed these issues and no workarounds 1832 are needed. The workarounds have no significant side effect on them 1833 but may decrease the performance of the system so this option should 1834 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1835 systems. 1836 1837 If unsure, please say Y. 1838endif # CPU_LOONGSON2F 1839 1840config SYS_SUPPORTS_ZBOOT 1841 bool 1842 select HAVE_KERNEL_GZIP 1843 select HAVE_KERNEL_BZIP2 1844 select HAVE_KERNEL_LZ4 1845 select HAVE_KERNEL_LZMA 1846 select HAVE_KERNEL_LZO 1847 select HAVE_KERNEL_XZ 1848 1849config SYS_SUPPORTS_ZBOOT_UART16550 1850 bool 1851 select SYS_SUPPORTS_ZBOOT 1852 1853config SYS_SUPPORTS_ZBOOT_UART_PROM 1854 bool 1855 select SYS_SUPPORTS_ZBOOT 1856 1857config CPU_LOONGSON2 1858 bool 1859 select CPU_SUPPORTS_32BIT_KERNEL 1860 select CPU_SUPPORTS_64BIT_KERNEL 1861 select CPU_SUPPORTS_HIGHMEM 1862 select CPU_SUPPORTS_HUGEPAGES 1863 select ARCH_HAS_PHYS_TO_DMA 1864 select CPU_HAS_LOAD_STORE_LR 1865 1866config CPU_LOONGSON1 1867 bool 1868 select CPU_MIPS32 1869 select CPU_MIPSR1 1870 select CPU_HAS_PREFETCH 1871 select CPU_HAS_LOAD_STORE_LR 1872 select CPU_SUPPORTS_32BIT_KERNEL 1873 select CPU_SUPPORTS_HIGHMEM 1874 select CPU_SUPPORTS_CPUFREQ 1875 1876config CPU_BMIPS32_3300 1877 select SMP_UP if SMP 1878 bool 1879 1880config CPU_BMIPS4350 1881 bool 1882 select SYS_SUPPORTS_SMP 1883 select SYS_SUPPORTS_HOTPLUG_CPU 1884 1885config CPU_BMIPS4380 1886 bool 1887 select MIPS_L1_CACHE_SHIFT_6 1888 select SYS_SUPPORTS_SMP 1889 select SYS_SUPPORTS_HOTPLUG_CPU 1890 select CPU_HAS_RIXI 1891 1892config CPU_BMIPS5000 1893 bool 1894 select MIPS_CPU_SCACHE 1895 select MIPS_L1_CACHE_SHIFT_7 1896 select SYS_SUPPORTS_SMP 1897 select SYS_SUPPORTS_HOTPLUG_CPU 1898 select CPU_HAS_RIXI 1899 1900config SYS_HAS_CPU_LOONGSON3 1901 bool 1902 select CPU_SUPPORTS_CPUFREQ 1903 select CPU_HAS_RIXI 1904 1905config SYS_HAS_CPU_LOONGSON2E 1906 bool 1907 1908config SYS_HAS_CPU_LOONGSON2F 1909 bool 1910 select CPU_SUPPORTS_CPUFREQ 1911 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1912 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1913 1914config SYS_HAS_CPU_LOONGSON1B 1915 bool 1916 1917config SYS_HAS_CPU_LOONGSON1C 1918 bool 1919 1920config SYS_HAS_CPU_MIPS32_R1 1921 bool 1922 1923config SYS_HAS_CPU_MIPS32_R2 1924 bool 1925 1926config SYS_HAS_CPU_MIPS32_R3_5 1927 bool 1928 1929config SYS_HAS_CPU_MIPS32_R5 1930 bool 1931 1932config SYS_HAS_CPU_MIPS32_R6 1933 bool 1934 1935config SYS_HAS_CPU_MIPS64_R1 1936 bool 1937 1938config SYS_HAS_CPU_MIPS64_R2 1939 bool 1940 1941config SYS_HAS_CPU_MIPS64_R6 1942 bool 1943 1944config SYS_HAS_CPU_R3000 1945 bool 1946 1947config SYS_HAS_CPU_TX39XX 1948 bool 1949 1950config SYS_HAS_CPU_VR41XX 1951 bool 1952 1953config SYS_HAS_CPU_R4300 1954 bool 1955 1956config SYS_HAS_CPU_R4X00 1957 bool 1958 1959config SYS_HAS_CPU_TX49XX 1960 bool 1961 1962config SYS_HAS_CPU_R5000 1963 bool 1964 1965config SYS_HAS_CPU_R5432 1966 bool 1967 1968config SYS_HAS_CPU_R5500 1969 bool 1970 1971config SYS_HAS_CPU_NEVADA 1972 bool 1973 1974config SYS_HAS_CPU_R8000 1975 bool 1976 1977config SYS_HAS_CPU_R10000 1978 bool 1979 1980config SYS_HAS_CPU_RM7000 1981 bool 1982 1983config SYS_HAS_CPU_SB1 1984 bool 1985 1986config SYS_HAS_CPU_CAVIUM_OCTEON 1987 bool 1988 1989config SYS_HAS_CPU_BMIPS 1990 bool 1991 1992config SYS_HAS_CPU_BMIPS32_3300 1993 bool 1994 select SYS_HAS_CPU_BMIPS 1995 1996config SYS_HAS_CPU_BMIPS4350 1997 bool 1998 select SYS_HAS_CPU_BMIPS 1999 2000config SYS_HAS_CPU_BMIPS4380 2001 bool 2002 select SYS_HAS_CPU_BMIPS 2003 2004config SYS_HAS_CPU_BMIPS5000 2005 bool 2006 select SYS_HAS_CPU_BMIPS 2007 2008config SYS_HAS_CPU_XLR 2009 bool 2010 2011config SYS_HAS_CPU_XLP 2012 bool 2013 2014# 2015# CPU may reorder R->R, R->W, W->R, W->W 2016# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 2017# 2018config WEAK_ORDERING 2019 bool 2020 2021# 2022# CPU may reorder reads and writes beyond LL/SC 2023# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 2024# 2025config WEAK_REORDERING_BEYOND_LLSC 2026 bool 2027endmenu 2028 2029# 2030# These two indicate any level of the MIPS32 and MIPS64 architecture 2031# 2032config CPU_MIPS32 2033 bool 2034 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6 2035 2036config CPU_MIPS64 2037 bool 2038 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 2039 2040# 2041# These indicate the revision of the architecture 2042# 2043config CPU_MIPSR1 2044 bool 2045 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 2046 2047config CPU_MIPSR2 2048 bool 2049 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2050 select CPU_HAS_RIXI 2051 select MIPS_SPRAM 2052 2053config CPU_MIPSR6 2054 bool 2055 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2056 select CPU_HAS_RIXI 2057 select HAVE_ARCH_BITREVERSE 2058 select MIPS_ASID_BITS_VARIABLE 2059 select MIPS_CRC_SUPPORT 2060 select MIPS_SPRAM 2061 2062config TARGET_ISA_REV 2063 int 2064 default 1 if CPU_MIPSR1 2065 default 2 if CPU_MIPSR2 2066 default 6 if CPU_MIPSR6 2067 default 0 2068 help 2069 Reflects the ISA revision being targeted by the kernel build. This 2070 is effectively the Kconfig equivalent of MIPS_ISA_REV. 2071 2072config EVA 2073 bool 2074 2075config XPA 2076 bool 2077 2078config SYS_SUPPORTS_32BIT_KERNEL 2079 bool 2080config SYS_SUPPORTS_64BIT_KERNEL 2081 bool 2082config CPU_SUPPORTS_32BIT_KERNEL 2083 bool 2084config CPU_SUPPORTS_64BIT_KERNEL 2085 bool 2086config CPU_SUPPORTS_CPUFREQ 2087 bool 2088config CPU_SUPPORTS_ADDRWINCFG 2089 bool 2090config CPU_SUPPORTS_HUGEPAGES 2091 bool 2092config CPU_SUPPORTS_UNCACHED_ACCELERATED 2093 bool 2094config MIPS_PGD_C0_CONTEXT 2095 bool 2096 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP 2097 2098# 2099# Set to y for ptrace access to watch registers. 2100# 2101config HARDWARE_WATCHPOINTS 2102 bool 2103 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2104 2105menu "Kernel type" 2106 2107choice 2108 prompt "Kernel code model" 2109 help 2110 You should only select this option if you have a workload that 2111 actually benefits from 64-bit processing or if your machine has 2112 large memory. You will only be presented a single option in this 2113 menu if your system does not support both 32-bit and 64-bit kernels. 2114 2115config 32BIT 2116 bool "32-bit kernel" 2117 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2118 select TRAD_SIGNALS 2119 help 2120 Select this option if you want to build a 32-bit kernel. 2121 2122config 64BIT 2123 bool "64-bit kernel" 2124 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2125 help 2126 Select this option if you want to build a 64-bit kernel. 2127 2128endchoice 2129 2130config KVM_GUEST 2131 bool "KVM Guest Kernel" 2132 depends on BROKEN_ON_SMP 2133 help 2134 Select this option if building a guest kernel for KVM (Trap & Emulate) 2135 mode. 2136 2137config KVM_GUEST_TIMER_FREQ 2138 int "Count/Compare Timer Frequency (MHz)" 2139 depends on KVM_GUEST 2140 default 100 2141 help 2142 Set this to non-zero if building a guest kernel for KVM to skip RTC 2143 emulation when determining guest CPU Frequency. Instead, the guest's 2144 timer frequency is specified directly. 2145 2146config MIPS_VA_BITS_48 2147 bool "48 bits virtual memory" 2148 depends on 64BIT 2149 help 2150 Support a maximum at least 48 bits of application virtual 2151 memory. Default is 40 bits or less, depending on the CPU. 2152 For page sizes 16k and above, this option results in a small 2153 memory overhead for page tables. For 4k page size, a fourth 2154 level of page tables is added which imposes both a memory 2155 overhead as well as slower TLB fault handling. 2156 2157 If unsure, say N. 2158 2159choice 2160 prompt "Kernel page size" 2161 default PAGE_SIZE_4KB 2162 2163config PAGE_SIZE_4KB 2164 bool "4kB" 2165 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3 2166 help 2167 This option select the standard 4kB Linux page size. On some 2168 R3000-family processors this is the only available page size. Using 2169 4kB page size will minimize memory consumption and is therefore 2170 recommended for low memory systems. 2171 2172config PAGE_SIZE_8KB 2173 bool "8kB" 2174 depends on CPU_R8000 || CPU_CAVIUM_OCTEON 2175 depends on !MIPS_VA_BITS_48 2176 help 2177 Using 8kB page size will result in higher performance kernel at 2178 the price of higher memory consumption. This option is available 2179 only on R8000 and cnMIPS processors. Note that you will need a 2180 suitable Linux distribution to support this. 2181 2182config PAGE_SIZE_16KB 2183 bool "16kB" 2184 depends on !CPU_R3000 && !CPU_TX39XX 2185 help 2186 Using 16kB page size will result in higher performance kernel at 2187 the price of higher memory consumption. This option is available on 2188 all non-R3000 family processors. Note that you will need a suitable 2189 Linux distribution to support this. 2190 2191config PAGE_SIZE_32KB 2192 bool "32kB" 2193 depends on CPU_CAVIUM_OCTEON 2194 depends on !MIPS_VA_BITS_48 2195 help 2196 Using 32kB page size will result in higher performance kernel at 2197 the price of higher memory consumption. This option is available 2198 only on cnMIPS cores. Note that you will need a suitable Linux 2199 distribution to support this. 2200 2201config PAGE_SIZE_64KB 2202 bool "64kB" 2203 depends on !CPU_R3000 && !CPU_TX39XX 2204 help 2205 Using 64kB page size will result in higher performance kernel at 2206 the price of higher memory consumption. This option is available on 2207 all non-R3000 family processor. Not that at the time of this 2208 writing this option is still high experimental. 2209 2210endchoice 2211 2212config FORCE_MAX_ZONEORDER 2213 int "Maximum zone order" 2214 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2215 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2216 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2217 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2218 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2219 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2220 range 11 64 2221 default "11" 2222 help 2223 The kernel memory allocator divides physically contiguous memory 2224 blocks into "zones", where each zone is a power of two number of 2225 pages. This option selects the largest power of two that the kernel 2226 keeps in the memory allocator. If you need to allocate very large 2227 blocks of physically contiguous memory, then you may need to 2228 increase this value. 2229 2230 This config option is actually maximum order plus one. For example, 2231 a value of 11 means that the largest free memory block is 2^10 pages. 2232 2233 The page size is not necessarily 4KB. Keep this in mind 2234 when choosing a value for this option. 2235 2236config BOARD_SCACHE 2237 bool 2238 2239config IP22_CPU_SCACHE 2240 bool 2241 select BOARD_SCACHE 2242 2243# 2244# Support for a MIPS32 / MIPS64 style S-caches 2245# 2246config MIPS_CPU_SCACHE 2247 bool 2248 select BOARD_SCACHE 2249 2250config R5000_CPU_SCACHE 2251 bool 2252 select BOARD_SCACHE 2253 2254config RM7000_CPU_SCACHE 2255 bool 2256 select BOARD_SCACHE 2257 2258config SIBYTE_DMA_PAGEOPS 2259 bool "Use DMA to clear/copy pages" 2260 depends on CPU_SB1 2261 help 2262 Instead of using the CPU to zero and copy pages, use a Data Mover 2263 channel. These DMA channels are otherwise unused by the standard 2264 SiByte Linux port. Seems to give a small performance benefit. 2265 2266config CPU_HAS_PREFETCH 2267 bool 2268 2269config CPU_GENERIC_DUMP_TLB 2270 bool 2271 default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX) 2272 2273config MIPS_FP_SUPPORT 2274 bool "Floating Point support" if EXPERT 2275 default y 2276 help 2277 Select y to include support for floating point in the kernel 2278 including initialization of FPU hardware, FP context save & restore 2279 and emulation of an FPU where necessary. Without this support any 2280 userland program attempting to use floating point instructions will 2281 receive a SIGILL. 2282 2283 If you know that your userland will not attempt to use floating point 2284 instructions then you can say n here to shrink the kernel a little. 2285 2286 If unsure, say y. 2287 2288config CPU_R2300_FPU 2289 bool 2290 depends on MIPS_FP_SUPPORT 2291 default y if CPU_R3000 || CPU_TX39XX 2292 2293config CPU_R4K_FPU 2294 bool 2295 depends on MIPS_FP_SUPPORT 2296 default y if !CPU_R2300_FPU 2297 2298config CPU_R4K_CACHE_TLB 2299 bool 2300 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 2301 2302config MIPS_MT_SMP 2303 bool "MIPS MT SMP support (1 TC on each available VPE)" 2304 default y 2305 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS 2306 select CPU_MIPSR2_IRQ_VI 2307 select CPU_MIPSR2_IRQ_EI 2308 select SYNC_R4K 2309 select MIPS_MT 2310 select SMP 2311 select SMP_UP 2312 select SYS_SUPPORTS_SMP 2313 select SYS_SUPPORTS_SCHED_SMT 2314 select MIPS_PERF_SHARED_TC_COUNTERS 2315 help 2316 This is a kernel model which is known as SMVP. This is supported 2317 on cores with the MT ASE and uses the available VPEs to implement 2318 virtual processors which supports SMP. This is equivalent to the 2319 Intel Hyperthreading feature. For further information go to 2320 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2321 2322config MIPS_MT 2323 bool 2324 2325config SCHED_SMT 2326 bool "SMT (multithreading) scheduler support" 2327 depends on SYS_SUPPORTS_SCHED_SMT 2328 default n 2329 help 2330 SMT scheduler support improves the CPU scheduler's decision making 2331 when dealing with MIPS MT enabled cores at a cost of slightly 2332 increased overhead in some places. If unsure say N here. 2333 2334config SYS_SUPPORTS_SCHED_SMT 2335 bool 2336 2337config SYS_SUPPORTS_MULTITHREADING 2338 bool 2339 2340config MIPS_MT_FPAFF 2341 bool "Dynamic FPU affinity for FP-intensive threads" 2342 default y 2343 depends on MIPS_MT_SMP 2344 2345config MIPSR2_TO_R6_EMULATOR 2346 bool "MIPS R2-to-R6 emulator" 2347 depends on CPU_MIPSR6 2348 depends on MIPS_FP_SUPPORT 2349 default y 2350 help 2351 Choose this option if you want to run non-R6 MIPS userland code. 2352 Even if you say 'Y' here, the emulator will still be disabled by 2353 default. You can enable it using the 'mipsr2emu' kernel option. 2354 The only reason this is a build-time option is to save ~14K from the 2355 final kernel image. 2356 2357config SYS_SUPPORTS_VPE_LOADER 2358 bool 2359 depends on SYS_SUPPORTS_MULTITHREADING 2360 help 2361 Indicates that the platform supports the VPE loader, and provides 2362 physical_memsize. 2363 2364config MIPS_VPE_LOADER 2365 bool "VPE loader support." 2366 depends on SYS_SUPPORTS_VPE_LOADER && MODULES 2367 select CPU_MIPSR2_IRQ_VI 2368 select CPU_MIPSR2_IRQ_EI 2369 select MIPS_MT 2370 help 2371 Includes a loader for loading an elf relocatable object 2372 onto another VPE and running it. 2373 2374config MIPS_VPE_LOADER_CMP 2375 bool 2376 default "y" 2377 depends on MIPS_VPE_LOADER && MIPS_CMP 2378 2379config MIPS_VPE_LOADER_MT 2380 bool 2381 default "y" 2382 depends on MIPS_VPE_LOADER && !MIPS_CMP 2383 2384config MIPS_VPE_LOADER_TOM 2385 bool "Load VPE program into memory hidden from linux" 2386 depends on MIPS_VPE_LOADER 2387 default y 2388 help 2389 The loader can use memory that is present but has been hidden from 2390 Linux using the kernel command line option "mem=xxMB". It's up to 2391 you to ensure the amount you put in the option and the space your 2392 program requires is less or equal to the amount physically present. 2393 2394config MIPS_VPE_APSP_API 2395 bool "Enable support for AP/SP API (RTLX)" 2396 depends on MIPS_VPE_LOADER 2397 2398config MIPS_VPE_APSP_API_CMP 2399 bool 2400 default "y" 2401 depends on MIPS_VPE_APSP_API && MIPS_CMP 2402 2403config MIPS_VPE_APSP_API_MT 2404 bool 2405 default "y" 2406 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2407 2408config MIPS_CMP 2409 bool "MIPS CMP framework support (DEPRECATED)" 2410 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2411 select SMP 2412 select SYNC_R4K 2413 select SYS_SUPPORTS_SMP 2414 select WEAK_ORDERING 2415 default n 2416 help 2417 Select this if you are using a bootloader which implements the "CMP 2418 framework" protocol (ie. YAMON) and want your kernel to make use of 2419 its ability to start secondary CPUs. 2420 2421 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2422 instead of this. 2423 2424config MIPS_CPS 2425 bool "MIPS Coherent Processing System support" 2426 depends on SYS_SUPPORTS_MIPS_CPS 2427 select MIPS_CM 2428 select MIPS_CPS_PM if HOTPLUG_CPU 2429 select SMP 2430 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2431 select SYS_SUPPORTS_HOTPLUG_CPU 2432 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6 2433 select SYS_SUPPORTS_SMP 2434 select WEAK_ORDERING 2435 help 2436 Select this if you wish to run an SMP kernel across multiple cores 2437 within a MIPS Coherent Processing System. When this option is 2438 enabled the kernel will probe for other cores and boot them with 2439 no external assistance. It is safe to enable this when hardware 2440 support is unavailable. 2441 2442config MIPS_CPS_PM 2443 depends on MIPS_CPS 2444 bool 2445 2446config MIPS_CM 2447 bool 2448 select MIPS_CPC 2449 2450config MIPS_CPC 2451 bool 2452 2453config SB1_PASS_2_WORKAROUNDS 2454 bool 2455 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2456 default y 2457 2458config SB1_PASS_2_1_WORKAROUNDS 2459 bool 2460 depends on CPU_SB1 && CPU_SB1_PASS_2 2461 default y 2462 2463 2464choice 2465 prompt "SmartMIPS or microMIPS ASE support" 2466 2467config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2468 bool "None" 2469 help 2470 Select this if you want neither microMIPS nor SmartMIPS support 2471 2472config CPU_HAS_SMARTMIPS 2473 depends on SYS_SUPPORTS_SMARTMIPS 2474 bool "SmartMIPS" 2475 help 2476 SmartMIPS is a extension of the MIPS32 architecture aimed at 2477 increased security at both hardware and software level for 2478 smartcards. Enabling this option will allow proper use of the 2479 SmartMIPS instructions by Linux applications. However a kernel with 2480 this option will not work on a MIPS core without SmartMIPS core. If 2481 you don't know you probably don't have SmartMIPS and should say N 2482 here. 2483 2484config CPU_MICROMIPS 2485 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2486 bool "microMIPS" 2487 help 2488 When this option is enabled the kernel will be built using the 2489 microMIPS ISA 2490 2491endchoice 2492 2493config CPU_HAS_MSA 2494 bool "Support for the MIPS SIMD Architecture" 2495 depends on CPU_SUPPORTS_MSA 2496 depends on MIPS_FP_SUPPORT 2497 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2498 help 2499 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2500 and a set of SIMD instructions to operate on them. When this option 2501 is enabled the kernel will support allocating & switching MSA 2502 vector register contexts. If you know that your kernel will only be 2503 running on CPUs which do not support MSA or that your userland will 2504 not be making use of it then you may wish to say N here to reduce 2505 the size & complexity of your kernel. 2506 2507 If unsure, say Y. 2508 2509config CPU_HAS_WB 2510 bool 2511 2512config XKS01 2513 bool 2514 2515config CPU_HAS_RIXI 2516 bool 2517 2518config CPU_HAS_LOAD_STORE_LR 2519 bool 2520 help 2521 CPU has support for unaligned load and store instructions: 2522 LWL, LWR, SWL, SWR (Load/store word left/right). 2523 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems). 2524 2525# 2526# Vectored interrupt mode is an R2 feature 2527# 2528config CPU_MIPSR2_IRQ_VI 2529 bool 2530 2531# 2532# Extended interrupt mode is an R2 feature 2533# 2534config CPU_MIPSR2_IRQ_EI 2535 bool 2536 2537config CPU_HAS_SYNC 2538 bool 2539 depends on !CPU_R3000 2540 default y 2541 2542# 2543# CPU non-features 2544# 2545config CPU_DADDI_WORKAROUNDS 2546 bool 2547 2548config CPU_R4000_WORKAROUNDS 2549 bool 2550 select CPU_R4400_WORKAROUNDS 2551 2552config CPU_R4400_WORKAROUNDS 2553 bool 2554 2555config MIPS_ASID_SHIFT 2556 int 2557 default 6 if CPU_R3000 || CPU_TX39XX 2558 default 4 if CPU_R8000 2559 default 0 2560 2561config MIPS_ASID_BITS 2562 int 2563 default 0 if MIPS_ASID_BITS_VARIABLE 2564 default 6 if CPU_R3000 || CPU_TX39XX 2565 default 8 2566 2567config MIPS_ASID_BITS_VARIABLE 2568 bool 2569 2570config MIPS_CRC_SUPPORT 2571 bool 2572 2573# 2574# - Highmem only makes sense for the 32-bit kernel. 2575# - The current highmem code will only work properly on physically indexed 2576# caches such as R3000, SB1, R7000 or those that look like they're virtually 2577# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2578# moment we protect the user and offer the highmem option only on machines 2579# where it's known to be safe. This will not offer highmem on a few systems 2580# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2581# indexed CPUs but we're playing safe. 2582# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2583# know they might have memory configurations that could make use of highmem 2584# support. 2585# 2586config HIGHMEM 2587 bool "High Memory Support" 2588 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2589 2590config CPU_SUPPORTS_HIGHMEM 2591 bool 2592 2593config SYS_SUPPORTS_HIGHMEM 2594 bool 2595 2596config SYS_SUPPORTS_SMARTMIPS 2597 bool 2598 2599config SYS_SUPPORTS_MICROMIPS 2600 bool 2601 2602config SYS_SUPPORTS_MIPS16 2603 bool 2604 help 2605 This option must be set if a kernel might be executed on a MIPS16- 2606 enabled CPU even if MIPS16 is not actually being used. In other 2607 words, it makes the kernel MIPS16-tolerant. 2608 2609config CPU_SUPPORTS_MSA 2610 bool 2611 2612config ARCH_FLATMEM_ENABLE 2613 def_bool y 2614 depends on !NUMA && !CPU_LOONGSON2 2615 2616config ARCH_DISCONTIGMEM_ENABLE 2617 bool 2618 default y if SGI_IP27 2619 help 2620 Say Y to support efficient handling of discontiguous physical memory, 2621 for architectures which are either NUMA (Non-Uniform Memory Access) 2622 or have huge holes in the physical address space for other reasons. 2623 See <file:Documentation/vm/numa.rst> for more. 2624 2625config ARCH_SPARSEMEM_ENABLE 2626 bool 2627 select SPARSEMEM_STATIC 2628 2629config NUMA 2630 bool "NUMA Support" 2631 depends on SYS_SUPPORTS_NUMA 2632 help 2633 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2634 Access). This option improves performance on systems with more 2635 than two nodes; on two node systems it is generally better to 2636 leave it disabled; on single node systems disable this option 2637 disabled. 2638 2639config SYS_SUPPORTS_NUMA 2640 bool 2641 2642config RELOCATABLE 2643 bool "Relocatable kernel" 2644 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC) 2645 help 2646 This builds a kernel image that retains relocation information 2647 so it can be loaded someplace besides the default 1MB. 2648 The relocations make the kernel binary about 15% larger, 2649 but are discarded at runtime 2650 2651config RELOCATION_TABLE_SIZE 2652 hex "Relocation table size" 2653 depends on RELOCATABLE 2654 range 0x0 0x01000000 2655 default "0x00100000" 2656 ---help--- 2657 A table of relocation data will be appended to the kernel binary 2658 and parsed at boot to fix up the relocated kernel. 2659 2660 This option allows the amount of space reserved for the table to be 2661 adjusted, although the default of 1Mb should be ok in most cases. 2662 2663 The build will fail and a valid size suggested if this is too small. 2664 2665 If unsure, leave at the default value. 2666 2667config RANDOMIZE_BASE 2668 bool "Randomize the address of the kernel image" 2669 depends on RELOCATABLE 2670 ---help--- 2671 Randomizes the physical and virtual address at which the 2672 kernel image is loaded, as a security feature that 2673 deters exploit attempts relying on knowledge of the location 2674 of kernel internals. 2675 2676 Entropy is generated using any coprocessor 0 registers available. 2677 2678 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2679 2680 If unsure, say N. 2681 2682config RANDOMIZE_BASE_MAX_OFFSET 2683 hex "Maximum kASLR offset" if EXPERT 2684 depends on RANDOMIZE_BASE 2685 range 0x0 0x40000000 if EVA || 64BIT 2686 range 0x0 0x08000000 2687 default "0x01000000" 2688 ---help--- 2689 When kASLR is active, this provides the maximum offset that will 2690 be applied to the kernel image. It should be set according to the 2691 amount of physical RAM available in the target system minus 2692 PHYSICAL_START and must be a power of 2. 2693 2694 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2695 EVA or 64-bit. The default is 16Mb. 2696 2697config NODES_SHIFT 2698 int 2699 default "6" 2700 depends on NEED_MULTIPLE_NODES 2701 2702config HW_PERF_EVENTS 2703 bool "Enable hardware performance counter support for perf events" 2704 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3) 2705 default y 2706 help 2707 Enable hardware performance counter support for perf events. If 2708 disabled, perf events will use software events only. 2709 2710config SMP 2711 bool "Multi-Processing support" 2712 depends on SYS_SUPPORTS_SMP 2713 help 2714 This enables support for systems with more than one CPU. If you have 2715 a system with only one CPU, say N. If you have a system with more 2716 than one CPU, say Y. 2717 2718 If you say N here, the kernel will run on uni- and multiprocessor 2719 machines, but will use only one CPU of a multiprocessor machine. If 2720 you say Y here, the kernel will run on many, but not all, 2721 uniprocessor machines. On a uniprocessor machine, the kernel 2722 will run faster if you say N here. 2723 2724 People using multiprocessor machines who say Y here should also say 2725 Y to "Enhanced Real Time Clock Support", below. 2726 2727 See also the SMP-HOWTO available at 2728 <http://www.tldp.org/docs.html#howto>. 2729 2730 If you don't know what to do here, say N. 2731 2732config HOTPLUG_CPU 2733 bool "Support for hot-pluggable CPUs" 2734 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 2735 help 2736 Say Y here to allow turning CPUs off and on. CPUs can be 2737 controlled through /sys/devices/system/cpu. 2738 (Note: power management support will enable this option 2739 automatically on SMP systems. ) 2740 Say N if you want to disable CPU hotplug. 2741 2742config SMP_UP 2743 bool 2744 2745config SYS_SUPPORTS_MIPS_CMP 2746 bool 2747 2748config SYS_SUPPORTS_MIPS_CPS 2749 bool 2750 2751config SYS_SUPPORTS_SMP 2752 bool 2753 2754config NR_CPUS_DEFAULT_4 2755 bool 2756 2757config NR_CPUS_DEFAULT_8 2758 bool 2759 2760config NR_CPUS_DEFAULT_16 2761 bool 2762 2763config NR_CPUS_DEFAULT_32 2764 bool 2765 2766config NR_CPUS_DEFAULT_64 2767 bool 2768 2769config NR_CPUS 2770 int "Maximum number of CPUs (2-256)" 2771 range 2 256 2772 depends on SMP 2773 default "4" if NR_CPUS_DEFAULT_4 2774 default "8" if NR_CPUS_DEFAULT_8 2775 default "16" if NR_CPUS_DEFAULT_16 2776 default "32" if NR_CPUS_DEFAULT_32 2777 default "64" if NR_CPUS_DEFAULT_64 2778 help 2779 This allows you to specify the maximum number of CPUs which this 2780 kernel will support. The maximum supported value is 32 for 32-bit 2781 kernel and 64 for 64-bit kernels; the minimum value which makes 2782 sense is 1 for Qemu (useful only for kernel debugging purposes) 2783 and 2 for all others. 2784 2785 This is purely to save memory - each supported CPU adds 2786 approximately eight kilobytes to the kernel image. For best 2787 performance should round up your number of processors to the next 2788 power of two. 2789 2790config MIPS_PERF_SHARED_TC_COUNTERS 2791 bool 2792 2793config MIPS_NR_CPU_NR_MAP_1024 2794 bool 2795 2796config MIPS_NR_CPU_NR_MAP 2797 int 2798 depends on SMP 2799 default 1024 if MIPS_NR_CPU_NR_MAP_1024 2800 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024 2801 2802# 2803# Timer Interrupt Frequency Configuration 2804# 2805 2806choice 2807 prompt "Timer frequency" 2808 default HZ_250 2809 help 2810 Allows the configuration of the timer frequency. 2811 2812 config HZ_24 2813 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2814 2815 config HZ_48 2816 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2817 2818 config HZ_100 2819 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2820 2821 config HZ_128 2822 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2823 2824 config HZ_250 2825 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2826 2827 config HZ_256 2828 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2829 2830 config HZ_1000 2831 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2832 2833 config HZ_1024 2834 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2835 2836endchoice 2837 2838config SYS_SUPPORTS_24HZ 2839 bool 2840 2841config SYS_SUPPORTS_48HZ 2842 bool 2843 2844config SYS_SUPPORTS_100HZ 2845 bool 2846 2847config SYS_SUPPORTS_128HZ 2848 bool 2849 2850config SYS_SUPPORTS_250HZ 2851 bool 2852 2853config SYS_SUPPORTS_256HZ 2854 bool 2855 2856config SYS_SUPPORTS_1000HZ 2857 bool 2858 2859config SYS_SUPPORTS_1024HZ 2860 bool 2861 2862config SYS_SUPPORTS_ARBIT_HZ 2863 bool 2864 default y if !SYS_SUPPORTS_24HZ && \ 2865 !SYS_SUPPORTS_48HZ && \ 2866 !SYS_SUPPORTS_100HZ && \ 2867 !SYS_SUPPORTS_128HZ && \ 2868 !SYS_SUPPORTS_250HZ && \ 2869 !SYS_SUPPORTS_256HZ && \ 2870 !SYS_SUPPORTS_1000HZ && \ 2871 !SYS_SUPPORTS_1024HZ 2872 2873config HZ 2874 int 2875 default 24 if HZ_24 2876 default 48 if HZ_48 2877 default 100 if HZ_100 2878 default 128 if HZ_128 2879 default 250 if HZ_250 2880 default 256 if HZ_256 2881 default 1000 if HZ_1000 2882 default 1024 if HZ_1024 2883 2884config SCHED_HRTICK 2885 def_bool HIGH_RES_TIMERS 2886 2887config KEXEC 2888 bool "Kexec system call" 2889 select KEXEC_CORE 2890 help 2891 kexec is a system call that implements the ability to shutdown your 2892 current kernel, and to start another kernel. It is like a reboot 2893 but it is independent of the system firmware. And like a reboot 2894 you can start any kernel with it, not just Linux. 2895 2896 The name comes from the similarity to the exec system call. 2897 2898 It is an ongoing process to be certain the hardware in a machine 2899 is properly shutdown, so do not be surprised if this code does not 2900 initially work for you. As of this writing the exact hardware 2901 interface is strongly in flux, so no good recommendation can be 2902 made. 2903 2904config CRASH_DUMP 2905 bool "Kernel crash dumps" 2906 help 2907 Generate crash dump after being started by kexec. 2908 This should be normally only set in special crash dump kernels 2909 which are loaded in the main kernel with kexec-tools into 2910 a specially reserved region and then later executed after 2911 a crash by kdump/kexec. The crash dump kernel must be compiled 2912 to a memory address not used by the main kernel or firmware using 2913 PHYSICAL_START. 2914 2915config PHYSICAL_START 2916 hex "Physical address where the kernel is loaded" 2917 default "0xffffffff84000000" 2918 depends on CRASH_DUMP 2919 help 2920 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2921 If you plan to use kernel for capturing the crash dump change 2922 this value to start of the reserved region (the "X" value as 2923 specified in the "crashkernel=YM@XM" command line boot parameter 2924 passed to the panic-ed kernel). 2925 2926config SECCOMP 2927 bool "Enable seccomp to safely compute untrusted bytecode" 2928 depends on PROC_FS 2929 default y 2930 help 2931 This kernel feature is useful for number crunching applications 2932 that may need to compute untrusted bytecode during their 2933 execution. By using pipes or other transports made available to 2934 the process as file descriptors supporting the read/write 2935 syscalls, it's possible to isolate those applications in 2936 their own address space using seccomp. Once seccomp is 2937 enabled via /proc/<pid>/seccomp, it cannot be disabled 2938 and the task is only allowed to execute a few safe syscalls 2939 defined by each seccomp mode. 2940 2941 If unsure, say Y. Only embedded should say N here. 2942 2943config MIPS_O32_FP64_SUPPORT 2944 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6 2945 depends on 32BIT || MIPS32_O32 2946 help 2947 When this is enabled, the kernel will support use of 64-bit floating 2948 point registers with binaries using the O32 ABI along with the 2949 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 2950 32-bit MIPS systems this support is at the cost of increasing the 2951 size and complexity of the compiled FPU emulator. Thus if you are 2952 running a MIPS32 system and know that none of your userland binaries 2953 will require 64-bit floating point, you may wish to reduce the size 2954 of your kernel & potentially improve FP emulation performance by 2955 saying N here. 2956 2957 Although binutils currently supports use of this flag the details 2958 concerning its effect upon the O32 ABI in userland are still being 2959 worked on. In order to avoid userland becoming dependant upon current 2960 behaviour before the details have been finalised, this option should 2961 be considered experimental and only enabled by those working upon 2962 said details. 2963 2964 If unsure, say N. 2965 2966config USE_OF 2967 bool 2968 select OF 2969 select OF_EARLY_FLATTREE 2970 select IRQ_DOMAIN 2971 2972config UHI_BOOT 2973 bool 2974 2975config BUILTIN_DTB 2976 bool 2977 2978choice 2979 prompt "Kernel appended dtb support" if USE_OF 2980 default MIPS_NO_APPENDED_DTB 2981 2982 config MIPS_NO_APPENDED_DTB 2983 bool "None" 2984 help 2985 Do not enable appended dtb support. 2986 2987 config MIPS_ELF_APPENDED_DTB 2988 bool "vmlinux" 2989 help 2990 With this option, the boot code will look for a device tree binary 2991 DTB) included in the vmlinux ELF section .appended_dtb. By default 2992 it is empty and the DTB can be appended using binutils command 2993 objcopy: 2994 2995 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 2996 2997 This is meant as a backward compatiblity convenience for those 2998 systems with a bootloader that can't be upgraded to accommodate 2999 the documented boot protocol using a device tree. 3000 3001 config MIPS_RAW_APPENDED_DTB 3002 bool "vmlinux.bin or vmlinuz.bin" 3003 help 3004 With this option, the boot code will look for a device tree binary 3005 DTB) appended to raw vmlinux.bin or vmlinuz.bin. 3006 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 3007 3008 This is meant as a backward compatibility convenience for those 3009 systems with a bootloader that can't be upgraded to accommodate 3010 the documented boot protocol using a device tree. 3011 3012 Beware that there is very little in terms of protection against 3013 this option being confused by leftover garbage in memory that might 3014 look like a DTB header after a reboot if no actual DTB is appended 3015 to vmlinux.bin. Do not leave this option active in a production kernel 3016 if you don't intend to always append a DTB. 3017endchoice 3018 3019choice 3020 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 3021 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 3022 !MIPS_MALTA && \ 3023 !CAVIUM_OCTEON_SOC 3024 default MIPS_CMDLINE_FROM_BOOTLOADER 3025 3026 config MIPS_CMDLINE_FROM_DTB 3027 depends on USE_OF 3028 bool "Dtb kernel arguments if available" 3029 3030 config MIPS_CMDLINE_DTB_EXTEND 3031 depends on USE_OF 3032 bool "Extend dtb kernel arguments with bootloader arguments" 3033 3034 config MIPS_CMDLINE_FROM_BOOTLOADER 3035 bool "Bootloader kernel arguments if available" 3036 3037 config MIPS_CMDLINE_BUILTIN_EXTEND 3038 depends on CMDLINE_BOOL 3039 bool "Extend builtin kernel arguments with bootloader arguments" 3040endchoice 3041 3042endmenu 3043 3044config LOCKDEP_SUPPORT 3045 bool 3046 default y 3047 3048config STACKTRACE_SUPPORT 3049 bool 3050 default y 3051 3052config HAVE_LATENCYTOP_SUPPORT 3053 bool 3054 default y 3055 3056config PGTABLE_LEVELS 3057 int 3058 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48 3059 default 3 if 64BIT && !PAGE_SIZE_64KB 3060 default 2 3061 3062config MIPS_AUTO_PFN_OFFSET 3063 bool 3064 3065menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 3066 3067config PCI_DRIVERS_GENERIC 3068 select PCI_DOMAINS_GENERIC if PCI 3069 bool 3070 3071config PCI_DRIVERS_LEGACY 3072 def_bool !PCI_DRIVERS_GENERIC 3073 select NO_GENERIC_PCI_IOPORT_MAP 3074 select PCI_DOMAINS if PCI 3075 3076# 3077# ISA support is now enabled via select. Too many systems still have the one 3078# or other ISA chip on the board that users don't know about so don't expect 3079# users to choose the right thing ... 3080# 3081config ISA 3082 bool 3083 3084config TC 3085 bool "TURBOchannel support" 3086 depends on MACH_DECSTATION 3087 help 3088 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3089 processors. TURBOchannel programming specifications are available 3090 at: 3091 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3092 and: 3093 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3094 Linux driver support status is documented at: 3095 <http://www.linux-mips.org/wiki/DECstation> 3096 3097config MMU 3098 bool 3099 default y 3100 3101config ARCH_MMAP_RND_BITS_MIN 3102 default 12 if 64BIT 3103 default 8 3104 3105config ARCH_MMAP_RND_BITS_MAX 3106 default 18 if 64BIT 3107 default 15 3108 3109config ARCH_MMAP_RND_COMPAT_BITS_MIN 3110 default 8 3111 3112config ARCH_MMAP_RND_COMPAT_BITS_MAX 3113 default 15 3114 3115config I8253 3116 bool 3117 select CLKSRC_I8253 3118 select CLKEVT_I8253 3119 select MIPS_EXTERNAL_TIMER 3120 3121config ZONE_DMA 3122 bool 3123 3124config ZONE_DMA32 3125 bool 3126 3127endmenu 3128 3129config TRAD_SIGNALS 3130 bool 3131 3132config MIPS32_COMPAT 3133 bool 3134 3135config COMPAT 3136 bool 3137 3138config SYSVIPC_COMPAT 3139 bool 3140 3141config MIPS32_O32 3142 bool "Kernel support for o32 binaries" 3143 depends on 64BIT 3144 select ARCH_WANT_OLD_COMPAT_IPC 3145 select COMPAT 3146 select MIPS32_COMPAT 3147 select SYSVIPC_COMPAT if SYSVIPC 3148 help 3149 Select this option if you want to run o32 binaries. These are pure 3150 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3151 existing binaries are in this format. 3152 3153 If unsure, say Y. 3154 3155config MIPS32_N32 3156 bool "Kernel support for n32 binaries" 3157 depends on 64BIT 3158 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION 3159 select COMPAT 3160 select MIPS32_COMPAT 3161 select SYSVIPC_COMPAT if SYSVIPC 3162 help 3163 Select this option if you want to run n32 binaries. These are 3164 64-bit binaries using 32-bit quantities for addressing and certain 3165 data that would normally be 64-bit. They are used in special 3166 cases. 3167 3168 If unsure, say N. 3169 3170config BINFMT_ELF32 3171 bool 3172 default y if MIPS32_O32 || MIPS32_N32 3173 select ELFCORE 3174 3175menu "Power management options" 3176 3177config ARCH_HIBERNATION_POSSIBLE 3178 def_bool y 3179 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3180 3181config ARCH_SUSPEND_POSSIBLE 3182 def_bool y 3183 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3184 3185source "kernel/power/Kconfig" 3186 3187endmenu 3188 3189config MIPS_EXTERNAL_TIMER 3190 bool 3191 3192menu "CPU Power Management" 3193 3194if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3195source "drivers/cpufreq/Kconfig" 3196endif 3197 3198source "drivers/cpuidle/Kconfig" 3199 3200endmenu 3201 3202source "drivers/firmware/Kconfig" 3203 3204source "arch/mips/kvm/Kconfig" 3205