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 SYS_HAS_CPU_MIPS32_R2 210 select SYS_HAS_EARLY_PRINTK 211 select SYS_SUPPORTS_32BIT_KERNEL 212 select SYS_SUPPORTS_BIG_ENDIAN 213 select SYS_SUPPORTS_MIPS16 214 select SYS_SUPPORTS_ZBOOT_UART_PROM 215 select USE_OF 216 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM 217 help 218 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 219 220config BMIPS_GENERIC 221 bool "Broadcom Generic BMIPS kernel" 222 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL 223 select ARCH_HAS_PHYS_TO_DMA 224 select BOOT_RAW 225 select NO_EXCEPT_FILL 226 select USE_OF 227 select CEVT_R4K 228 select CSRC_R4K 229 select SYNC_R4K 230 select COMMON_CLK 231 select BCM6345_L1_IRQ 232 select BCM7038_L1_IRQ 233 select BCM7120_L2_IRQ 234 select BRCMSTB_L2_IRQ 235 select IRQ_MIPS_CPU 236 select DMA_NONCOHERENT 237 select SYS_SUPPORTS_32BIT_KERNEL 238 select SYS_SUPPORTS_LITTLE_ENDIAN 239 select SYS_SUPPORTS_BIG_ENDIAN 240 select SYS_SUPPORTS_HIGHMEM 241 select SYS_HAS_CPU_BMIPS32_3300 242 select SYS_HAS_CPU_BMIPS4350 243 select SYS_HAS_CPU_BMIPS4380 244 select SYS_HAS_CPU_BMIPS5000 245 select SWAP_IO_SPACE 246 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 247 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 248 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 249 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 250 select HARDIRQS_SW_RESEND 251 help 252 Build a generic DT-based kernel image that boots on select 253 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top 254 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN 255 must be set appropriately for your board. 256 257config BCM47XX 258 bool "Broadcom BCM47XX based boards" 259 select BOOT_RAW 260 select CEVT_R4K 261 select CSRC_R4K 262 select DMA_NONCOHERENT 263 select HAVE_PCI 264 select IRQ_MIPS_CPU 265 select SYS_HAS_CPU_MIPS32_R1 266 select NO_EXCEPT_FILL 267 select SYS_SUPPORTS_32BIT_KERNEL 268 select SYS_SUPPORTS_LITTLE_ENDIAN 269 select SYS_SUPPORTS_MIPS16 270 select SYS_SUPPORTS_ZBOOT 271 select SYS_HAS_EARLY_PRINTK 272 select USE_GENERIC_EARLY_PRINTK_8250 273 select GPIOLIB 274 select LEDS_GPIO_REGISTER 275 select BCM47XX_NVRAM 276 select BCM47XX_SPROM 277 select BCM47XX_SSB if !BCM47XX_BCMA 278 help 279 Support for BCM47XX based boards 280 281config BCM63XX 282 bool "Broadcom BCM63XX based boards" 283 select BOOT_RAW 284 select CEVT_R4K 285 select CSRC_R4K 286 select SYNC_R4K 287 select DMA_NONCOHERENT 288 select IRQ_MIPS_CPU 289 select SYS_SUPPORTS_32BIT_KERNEL 290 select SYS_SUPPORTS_BIG_ENDIAN 291 select SYS_HAS_EARLY_PRINTK 292 select SWAP_IO_SPACE 293 select GPIOLIB 294 select HAVE_CLK 295 select MIPS_L1_CACHE_SHIFT_4 296 select CLKDEV_LOOKUP 297 help 298 Support for BCM63XX based boards 299 300config MIPS_COBALT 301 bool "Cobalt Server" 302 select CEVT_R4K 303 select CSRC_R4K 304 select CEVT_GT641XX 305 select DMA_NONCOHERENT 306 select FORCE_PCI 307 select I8253 308 select I8259 309 select IRQ_MIPS_CPU 310 select IRQ_GT641XX 311 select PCI_GT64XXX_PCI0 312 select SYS_HAS_CPU_NEVADA 313 select SYS_HAS_EARLY_PRINTK 314 select SYS_SUPPORTS_32BIT_KERNEL 315 select SYS_SUPPORTS_64BIT_KERNEL 316 select SYS_SUPPORTS_LITTLE_ENDIAN 317 select USE_GENERIC_EARLY_PRINTK_8250 318 319config MACH_DECSTATION 320 bool "DECstations" 321 select BOOT_ELF32 322 select CEVT_DS1287 323 select CEVT_R4K if CPU_R4X00 324 select CSRC_IOASIC 325 select CSRC_R4K if CPU_R4X00 326 select CPU_DADDI_WORKAROUNDS if 64BIT 327 select CPU_R4000_WORKAROUNDS if 64BIT 328 select CPU_R4400_WORKAROUNDS if 64BIT 329 select DMA_NONCOHERENT 330 select NO_IOPORT_MAP 331 select IRQ_MIPS_CPU 332 select SYS_HAS_CPU_R3000 333 select SYS_HAS_CPU_R4X00 334 select SYS_SUPPORTS_32BIT_KERNEL 335 select SYS_SUPPORTS_64BIT_KERNEL 336 select SYS_SUPPORTS_LITTLE_ENDIAN 337 select SYS_SUPPORTS_128HZ 338 select SYS_SUPPORTS_256HZ 339 select SYS_SUPPORTS_1024HZ 340 select MIPS_L1_CACHE_SHIFT_4 341 help 342 This enables support for DEC's MIPS based workstations. For details 343 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 344 DECstation porting pages on <http://decstation.unix-ag.org/>. 345 346 If you have one of the following DECstation Models you definitely 347 want to choose R4xx0 for the CPU Type: 348 349 DECstation 5000/50 350 DECstation 5000/150 351 DECstation 5000/260 352 DECsystem 5900/260 353 354 otherwise choose R3000. 355 356config MACH_JAZZ 357 bool "Jazz family of machines" 358 select ARCH_MIGHT_HAVE_PC_PARPORT 359 select ARCH_MIGHT_HAVE_PC_SERIO 360 select FW_ARC 361 select FW_ARC32 362 select ARCH_MAY_HAVE_PC_FDC 363 select CEVT_R4K 364 select CSRC_R4K 365 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 366 select GENERIC_ISA_DMA 367 select HAVE_PCSPKR_PLATFORM 368 select IRQ_MIPS_CPU 369 select I8253 370 select I8259 371 select ISA 372 select SYS_HAS_CPU_R4X00 373 select SYS_SUPPORTS_32BIT_KERNEL 374 select SYS_SUPPORTS_64BIT_KERNEL 375 select SYS_SUPPORTS_100HZ 376 help 377 This a family of machines based on the MIPS R4030 chipset which was 378 used by several vendors to build RISC/os and Windows NT workstations. 379 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 380 Olivetti M700-10 workstations. 381 382config MACH_INGENIC 383 bool "Ingenic SoC based machines" 384 select SYS_SUPPORTS_32BIT_KERNEL 385 select SYS_SUPPORTS_LITTLE_ENDIAN 386 select SYS_SUPPORTS_ZBOOT_UART16550 387 select DMA_NONCOHERENT 388 select IRQ_MIPS_CPU 389 select PINCTRL 390 select GPIOLIB 391 select COMMON_CLK 392 select GENERIC_IRQ_CHIP 393 select BUILTIN_DTB 394 select USE_OF 395 select LIBFDT 396 397config LANTIQ 398 bool "Lantiq based platforms" 399 select DMA_NONCOHERENT 400 select IRQ_MIPS_CPU 401 select CEVT_R4K 402 select CSRC_R4K 403 select SYS_HAS_CPU_MIPS32_R1 404 select SYS_HAS_CPU_MIPS32_R2 405 select SYS_SUPPORTS_BIG_ENDIAN 406 select SYS_SUPPORTS_32BIT_KERNEL 407 select SYS_SUPPORTS_MIPS16 408 select SYS_SUPPORTS_MULTITHREADING 409 select SYS_SUPPORTS_VPE_LOADER 410 select SYS_HAS_EARLY_PRINTK 411 select GPIOLIB 412 select SWAP_IO_SPACE 413 select BOOT_RAW 414 select CLKDEV_LOOKUP 415 select USE_OF 416 select PINCTRL 417 select PINCTRL_LANTIQ 418 select ARCH_HAS_RESET_CONTROLLER 419 select RESET_CONTROLLER 420 421config LASAT 422 bool "LASAT Networks platforms" 423 select CEVT_R4K 424 select CRC32 425 select CSRC_R4K 426 select DMA_NONCOHERENT 427 select SYS_HAS_EARLY_PRINTK 428 select HAVE_PCI 429 select IRQ_MIPS_CPU 430 select PCI_GT64XXX_PCI0 431 select MIPS_NILE4 432 select R5000_CPU_SCACHE 433 select SYS_HAS_CPU_R5000 434 select SYS_SUPPORTS_32BIT_KERNEL 435 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 436 select SYS_SUPPORTS_LITTLE_ENDIAN 437 438config MACH_LOONGSON32 439 bool "Loongson-1 family of machines" 440 select SYS_SUPPORTS_ZBOOT 441 help 442 This enables support for the Loongson-1 family of machines. 443 444 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by 445 the Institute of Computing Technology (ICT), Chinese Academy of 446 Sciences (CAS). 447 448config MACH_LOONGSON64 449 bool "Loongson-2/3 family of machines" 450 select SYS_SUPPORTS_ZBOOT 451 help 452 This enables the support of Loongson-2/3 family of machines. 453 454 Loongson-2 is a family of single-core CPUs and Loongson-3 is a 455 family of multi-core CPUs. They are both 64-bit general-purpose 456 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute 457 of Computing Technology (ICT), Chinese Academy of Sciences (CAS) 458 in the People's Republic of China. The chief architect is Professor 459 Weiwu Hu. 460 461config MACH_PISTACHIO 462 bool "IMG Pistachio SoC based boards" 463 select BOOT_ELF32 464 select BOOT_RAW 465 select CEVT_R4K 466 select CLKSRC_MIPS_GIC 467 select COMMON_CLK 468 select CSRC_R4K 469 select DMA_NONCOHERENT 470 select GPIOLIB 471 select IRQ_MIPS_CPU 472 select LIBFDT 473 select MFD_SYSCON 474 select MIPS_CPU_SCACHE 475 select MIPS_GIC 476 select PINCTRL 477 select REGULATOR 478 select SYS_HAS_CPU_MIPS32_R2 479 select SYS_SUPPORTS_32BIT_KERNEL 480 select SYS_SUPPORTS_LITTLE_ENDIAN 481 select SYS_SUPPORTS_MIPS_CPS 482 select SYS_SUPPORTS_MULTITHREADING 483 select SYS_SUPPORTS_RELOCATABLE 484 select SYS_SUPPORTS_ZBOOT 485 select SYS_HAS_EARLY_PRINTK 486 select USE_GENERIC_EARLY_PRINTK_8250 487 select USE_OF 488 help 489 This enables support for the IMG Pistachio SoC platform. 490 491config MIPS_MALTA 492 bool "MIPS Malta board" 493 select ARCH_MAY_HAVE_PC_FDC 494 select ARCH_MIGHT_HAVE_PC_PARPORT 495 select ARCH_MIGHT_HAVE_PC_SERIO 496 select BOOT_ELF32 497 select BOOT_RAW 498 select BUILTIN_DTB 499 select CEVT_R4K 500 select CLKSRC_MIPS_GIC 501 select COMMON_CLK 502 select CSRC_R4K 503 select DMA_MAYBE_COHERENT 504 select GENERIC_ISA_DMA 505 select HAVE_PCSPKR_PLATFORM 506 select HAVE_PCI 507 select I8253 508 select I8259 509 select IRQ_MIPS_CPU 510 select LIBFDT 511 select MIPS_BONITO64 512 select MIPS_CPU_SCACHE 513 select MIPS_GIC 514 select MIPS_L1_CACHE_SHIFT_6 515 select MIPS_MSC 516 select PCI_GT64XXX_PCI0 517 select SMP_UP if SMP 518 select SWAP_IO_SPACE 519 select SYS_HAS_CPU_MIPS32_R1 520 select SYS_HAS_CPU_MIPS32_R2 521 select SYS_HAS_CPU_MIPS32_R3_5 522 select SYS_HAS_CPU_MIPS32_R5 523 select SYS_HAS_CPU_MIPS32_R6 524 select SYS_HAS_CPU_MIPS64_R1 525 select SYS_HAS_CPU_MIPS64_R2 526 select SYS_HAS_CPU_MIPS64_R6 527 select SYS_HAS_CPU_NEVADA 528 select SYS_HAS_CPU_RM7000 529 select SYS_SUPPORTS_32BIT_KERNEL 530 select SYS_SUPPORTS_64BIT_KERNEL 531 select SYS_SUPPORTS_BIG_ENDIAN 532 select SYS_SUPPORTS_HIGHMEM 533 select SYS_SUPPORTS_LITTLE_ENDIAN 534 select SYS_SUPPORTS_MICROMIPS 535 select SYS_SUPPORTS_MIPS16 536 select SYS_SUPPORTS_MIPS_CMP 537 select SYS_SUPPORTS_MIPS_CPS 538 select SYS_SUPPORTS_MULTITHREADING 539 select SYS_SUPPORTS_RELOCATABLE 540 select SYS_SUPPORTS_SMARTMIPS 541 select SYS_SUPPORTS_VPE_LOADER 542 select SYS_SUPPORTS_ZBOOT 543 select USE_OF 544 select ZONE_DMA32 if 64BIT 545 help 546 This enables support for the MIPS Technologies Malta evaluation 547 board. 548 549config MACH_PIC32 550 bool "Microchip PIC32 Family" 551 help 552 This enables support for the Microchip PIC32 family of platforms. 553 554 Microchip PIC32 is a family of general-purpose 32 bit MIPS core 555 microcontrollers. 556 557config NEC_MARKEINS 558 bool "NEC EMMA2RH Mark-eins board" 559 select SOC_EMMA2RH 560 select HAVE_PCI 561 help 562 This enables support for the NEC Electronics Mark-eins boards. 563 564config MACH_VR41XX 565 bool "NEC VR4100 series based machines" 566 select CEVT_R4K 567 select CSRC_R4K 568 select SYS_HAS_CPU_VR41XX 569 select SYS_SUPPORTS_MIPS16 570 select GPIOLIB 571 572config NXP_STB220 573 bool "NXP STB220 board" 574 select SOC_PNX833X 575 help 576 Support for NXP Semiconductors STB220 Development Board. 577 578config NXP_STB225 579 bool "NXP 225 board" 580 select SOC_PNX833X 581 select SOC_PNX8335 582 help 583 Support for NXP Semiconductors STB225 Development Board. 584 585config PMC_MSP 586 bool "PMC-Sierra MSP chipsets" 587 select CEVT_R4K 588 select CSRC_R4K 589 select DMA_NONCOHERENT 590 select SWAP_IO_SPACE 591 select NO_EXCEPT_FILL 592 select BOOT_RAW 593 select SYS_HAS_CPU_MIPS32_R1 594 select SYS_HAS_CPU_MIPS32_R2 595 select SYS_SUPPORTS_32BIT_KERNEL 596 select SYS_SUPPORTS_BIG_ENDIAN 597 select SYS_SUPPORTS_MIPS16 598 select IRQ_MIPS_CPU 599 select SERIAL_8250 600 select SERIAL_8250_CONSOLE 601 select USB_EHCI_BIG_ENDIAN_MMIO 602 select USB_EHCI_BIG_ENDIAN_DESC 603 help 604 This adds support for the PMC-Sierra family of Multi-Service 605 Processor System-On-A-Chips. These parts include a number 606 of integrated peripherals, interfaces and DSPs in addition to 607 a variety of MIPS cores. 608 609config RALINK 610 bool "Ralink based machines" 611 select CEVT_R4K 612 select CSRC_R4K 613 select BOOT_RAW 614 select DMA_NONCOHERENT 615 select IRQ_MIPS_CPU 616 select USE_OF 617 select SYS_HAS_CPU_MIPS32_R1 618 select SYS_HAS_CPU_MIPS32_R2 619 select SYS_SUPPORTS_32BIT_KERNEL 620 select SYS_SUPPORTS_LITTLE_ENDIAN 621 select SYS_SUPPORTS_MIPS16 622 select SYS_HAS_EARLY_PRINTK 623 select CLKDEV_LOOKUP 624 select ARCH_HAS_RESET_CONTROLLER 625 select RESET_CONTROLLER 626 627config SGI_IP22 628 bool "SGI IP22 (Indy/Indigo2)" 629 select FW_ARC 630 select FW_ARC32 631 select ARCH_MIGHT_HAVE_PC_SERIO 632 select BOOT_ELF32 633 select CEVT_R4K 634 select CSRC_R4K 635 select DEFAULT_SGI_PARTITION 636 select DMA_NONCOHERENT 637 select HAVE_EISA 638 select I8253 639 select I8259 640 select IP22_CPU_SCACHE 641 select IRQ_MIPS_CPU 642 select GENERIC_ISA_DMA_SUPPORT_BROKEN 643 select SGI_HAS_I8042 644 select SGI_HAS_INDYDOG 645 select SGI_HAS_HAL2 646 select SGI_HAS_SEEQ 647 select SGI_HAS_WD93 648 select SGI_HAS_ZILOG 649 select SWAP_IO_SPACE 650 select SYS_HAS_CPU_R4X00 651 select SYS_HAS_CPU_R5000 652 # 653 # Disable EARLY_PRINTK for now since it leads to overwritten prom 654 # memory during early boot on some machines. 655 # 656 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 657 # for a more details discussion 658 # 659 # select SYS_HAS_EARLY_PRINTK 660 select SYS_SUPPORTS_32BIT_KERNEL 661 select SYS_SUPPORTS_64BIT_KERNEL 662 select SYS_SUPPORTS_BIG_ENDIAN 663 select MIPS_L1_CACHE_SHIFT_7 664 help 665 This are the SGI Indy, Challenge S and Indigo2, as well as certain 666 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 667 that runs on these, say Y here. 668 669config SGI_IP27 670 bool "SGI IP27 (Origin200/2000)" 671 select ARCH_HAS_PHYS_TO_DMA 672 select FW_ARC 673 select FW_ARC64 674 select BOOT_ELF64 675 select DEFAULT_SGI_PARTITION 676 select SYS_HAS_EARLY_PRINTK 677 select HAVE_PCI 678 select NR_CPUS_DEFAULT_64 679 select SYS_HAS_CPU_R10000 680 select SYS_SUPPORTS_64BIT_KERNEL 681 select SYS_SUPPORTS_BIG_ENDIAN 682 select SYS_SUPPORTS_NUMA 683 select SYS_SUPPORTS_SMP 684 select MIPS_L1_CACHE_SHIFT_7 685 help 686 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 687 workstations. To compile a Linux kernel that runs on these, say Y 688 here. 689 690config SGI_IP28 691 bool "SGI IP28 (Indigo2 R10k)" 692 select FW_ARC 693 select FW_ARC64 694 select ARCH_MIGHT_HAVE_PC_SERIO 695 select BOOT_ELF64 696 select CEVT_R4K 697 select CSRC_R4K 698 select DEFAULT_SGI_PARTITION 699 select DMA_NONCOHERENT 700 select GENERIC_ISA_DMA_SUPPORT_BROKEN 701 select IRQ_MIPS_CPU 702 select HAVE_EISA 703 select I8253 704 select I8259 705 select SGI_HAS_I8042 706 select SGI_HAS_INDYDOG 707 select SGI_HAS_HAL2 708 select SGI_HAS_SEEQ 709 select SGI_HAS_WD93 710 select SGI_HAS_ZILOG 711 select SWAP_IO_SPACE 712 select SYS_HAS_CPU_R10000 713 # 714 # Disable EARLY_PRINTK for now since it leads to overwritten prom 715 # memory during early boot on some machines. 716 # 717 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 718 # for a more details discussion 719 # 720 # select SYS_HAS_EARLY_PRINTK 721 select SYS_SUPPORTS_64BIT_KERNEL 722 select SYS_SUPPORTS_BIG_ENDIAN 723 select MIPS_L1_CACHE_SHIFT_7 724 help 725 This is the SGI Indigo2 with R10000 processor. To compile a Linux 726 kernel that runs on these, say Y here. 727 728config SGI_IP32 729 bool "SGI IP32 (O2)" 730 select ARCH_HAS_PHYS_TO_DMA 731 select FW_ARC 732 select FW_ARC32 733 select BOOT_ELF32 734 select CEVT_R4K 735 select CSRC_R4K 736 select DMA_NONCOHERENT 737 select HAVE_PCI 738 select IRQ_MIPS_CPU 739 select R5000_CPU_SCACHE 740 select RM7000_CPU_SCACHE 741 select SYS_HAS_CPU_R5000 742 select SYS_HAS_CPU_R10000 if BROKEN 743 select SYS_HAS_CPU_RM7000 744 select SYS_HAS_CPU_NEVADA 745 select SYS_SUPPORTS_64BIT_KERNEL 746 select SYS_SUPPORTS_BIG_ENDIAN 747 help 748 If you want this kernel to run on SGI O2 workstation, say Y here. 749 750config SIBYTE_CRHINE 751 bool "Sibyte BCM91120C-CRhine" 752 select BOOT_ELF32 753 select SIBYTE_BCM1120 754 select SWAP_IO_SPACE 755 select SYS_HAS_CPU_SB1 756 select SYS_SUPPORTS_BIG_ENDIAN 757 select SYS_SUPPORTS_LITTLE_ENDIAN 758 759config SIBYTE_CARMEL 760 bool "Sibyte BCM91120x-Carmel" 761 select BOOT_ELF32 762 select SIBYTE_BCM1120 763 select SWAP_IO_SPACE 764 select SYS_HAS_CPU_SB1 765 select SYS_SUPPORTS_BIG_ENDIAN 766 select SYS_SUPPORTS_LITTLE_ENDIAN 767 768config SIBYTE_CRHONE 769 bool "Sibyte BCM91125C-CRhone" 770 select BOOT_ELF32 771 select SIBYTE_BCM1125 772 select SWAP_IO_SPACE 773 select SYS_HAS_CPU_SB1 774 select SYS_SUPPORTS_BIG_ENDIAN 775 select SYS_SUPPORTS_HIGHMEM 776 select SYS_SUPPORTS_LITTLE_ENDIAN 777 778config SIBYTE_RHONE 779 bool "Sibyte BCM91125E-Rhone" 780 select BOOT_ELF32 781 select SIBYTE_BCM1125H 782 select SWAP_IO_SPACE 783 select SYS_HAS_CPU_SB1 784 select SYS_SUPPORTS_BIG_ENDIAN 785 select SYS_SUPPORTS_LITTLE_ENDIAN 786 787config SIBYTE_SWARM 788 bool "Sibyte BCM91250A-SWARM" 789 select BOOT_ELF32 790 select HAVE_PATA_PLATFORM 791 select SIBYTE_SB1250 792 select SWAP_IO_SPACE 793 select SYS_HAS_CPU_SB1 794 select SYS_SUPPORTS_BIG_ENDIAN 795 select SYS_SUPPORTS_HIGHMEM 796 select SYS_SUPPORTS_LITTLE_ENDIAN 797 select ZONE_DMA32 if 64BIT 798 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 799 800config SIBYTE_LITTLESUR 801 bool "Sibyte BCM91250C2-LittleSur" 802 select BOOT_ELF32 803 select HAVE_PATA_PLATFORM 804 select SIBYTE_SB1250 805 select SWAP_IO_SPACE 806 select SYS_HAS_CPU_SB1 807 select SYS_SUPPORTS_BIG_ENDIAN 808 select SYS_SUPPORTS_HIGHMEM 809 select SYS_SUPPORTS_LITTLE_ENDIAN 810 select ZONE_DMA32 if 64BIT 811 812config SIBYTE_SENTOSA 813 bool "Sibyte BCM91250E-Sentosa" 814 select BOOT_ELF32 815 select SIBYTE_SB1250 816 select SWAP_IO_SPACE 817 select SYS_HAS_CPU_SB1 818 select SYS_SUPPORTS_BIG_ENDIAN 819 select SYS_SUPPORTS_LITTLE_ENDIAN 820 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 821 822config SIBYTE_BIGSUR 823 bool "Sibyte BCM91480B-BigSur" 824 select BOOT_ELF32 825 select NR_CPUS_DEFAULT_4 826 select SIBYTE_BCM1x80 827 select SWAP_IO_SPACE 828 select SYS_HAS_CPU_SB1 829 select SYS_SUPPORTS_BIG_ENDIAN 830 select SYS_SUPPORTS_HIGHMEM 831 select SYS_SUPPORTS_LITTLE_ENDIAN 832 select ZONE_DMA32 if 64BIT 833 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 834 835config SNI_RM 836 bool "SNI RM200/300/400" 837 select FW_ARC if CPU_LITTLE_ENDIAN 838 select FW_ARC32 if CPU_LITTLE_ENDIAN 839 select FW_SNIPROM if CPU_BIG_ENDIAN 840 select ARCH_MAY_HAVE_PC_FDC 841 select ARCH_MIGHT_HAVE_PC_PARPORT 842 select ARCH_MIGHT_HAVE_PC_SERIO 843 select BOOT_ELF32 844 select CEVT_R4K 845 select CSRC_R4K 846 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 847 select DMA_NONCOHERENT 848 select GENERIC_ISA_DMA 849 select HAVE_EISA 850 select HAVE_PCSPKR_PLATFORM 851 select HAVE_PCI 852 select IRQ_MIPS_CPU 853 select I8253 854 select I8259 855 select ISA 856 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 857 select SYS_HAS_CPU_R4X00 858 select SYS_HAS_CPU_R5000 859 select SYS_HAS_CPU_R10000 860 select R5000_CPU_SCACHE 861 select SYS_HAS_EARLY_PRINTK 862 select SYS_SUPPORTS_32BIT_KERNEL 863 select SYS_SUPPORTS_64BIT_KERNEL 864 select SYS_SUPPORTS_BIG_ENDIAN 865 select SYS_SUPPORTS_HIGHMEM 866 select SYS_SUPPORTS_LITTLE_ENDIAN 867 help 868 The SNI RM200/300/400 are MIPS-based machines manufactured by 869 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 870 Technology and now in turn merged with Fujitsu. Say Y here to 871 support this machine type. 872 873config MACH_TX39XX 874 bool "Toshiba TX39 series based machines" 875 876config MACH_TX49XX 877 bool "Toshiba TX49 series based machines" 878 879config MIKROTIK_RB532 880 bool "Mikrotik RB532 boards" 881 select CEVT_R4K 882 select CSRC_R4K 883 select DMA_NONCOHERENT 884 select HAVE_PCI 885 select IRQ_MIPS_CPU 886 select SYS_HAS_CPU_MIPS32_R1 887 select SYS_SUPPORTS_32BIT_KERNEL 888 select SYS_SUPPORTS_LITTLE_ENDIAN 889 select SWAP_IO_SPACE 890 select BOOT_RAW 891 select GPIOLIB 892 select MIPS_L1_CACHE_SHIFT_4 893 help 894 Support the Mikrotik(tm) RouterBoard 532 series, 895 based on the IDT RC32434 SoC. 896 897config CAVIUM_OCTEON_SOC 898 bool "Cavium Networks Octeon SoC based boards" 899 select CEVT_R4K 900 select ARCH_HAS_PHYS_TO_DMA 901 select HAVE_RAPIDIO 902 select PHYS_ADDR_T_64BIT 903 select SYS_SUPPORTS_64BIT_KERNEL 904 select SYS_SUPPORTS_BIG_ENDIAN 905 select EDAC_SUPPORT 906 select EDAC_ATOMIC_SCRUB 907 select SYS_SUPPORTS_LITTLE_ENDIAN 908 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN 909 select SYS_HAS_EARLY_PRINTK 910 select SYS_HAS_CPU_CAVIUM_OCTEON 911 select HAVE_PCI 912 select ZONE_DMA32 913 select HOLES_IN_ZONE 914 select GPIOLIB 915 select LIBFDT 916 select USE_OF 917 select ARCH_SPARSEMEM_ENABLE 918 select SYS_SUPPORTS_SMP 919 select NR_CPUS_DEFAULT_64 920 select MIPS_NR_CPU_NR_MAP_1024 921 select BUILTIN_DTB 922 select MTD_COMPLEX_MAPPINGS 923 select SWIOTLB 924 select SYS_SUPPORTS_RELOCATABLE 925 help 926 This option supports all of the Octeon reference boards from Cavium 927 Networks. It builds a kernel that dynamically determines the Octeon 928 CPU type and supports all known board reference implementations. 929 Some of the supported boards are: 930 EBT3000 931 EBH3000 932 EBH3100 933 Thunder 934 Kodama 935 Hikari 936 Say Y here for most Octeon reference boards. 937 938config NLM_XLR_BOARD 939 bool "Netlogic XLR/XLS based systems" 940 select BOOT_ELF32 941 select NLM_COMMON 942 select SYS_HAS_CPU_XLR 943 select SYS_SUPPORTS_SMP 944 select HAVE_PCI 945 select SWAP_IO_SPACE 946 select SYS_SUPPORTS_32BIT_KERNEL 947 select SYS_SUPPORTS_64BIT_KERNEL 948 select PHYS_ADDR_T_64BIT 949 select SYS_SUPPORTS_BIG_ENDIAN 950 select SYS_SUPPORTS_HIGHMEM 951 select NR_CPUS_DEFAULT_32 952 select CEVT_R4K 953 select CSRC_R4K 954 select IRQ_MIPS_CPU 955 select ZONE_DMA32 if 64BIT 956 select SYNC_R4K 957 select SYS_HAS_EARLY_PRINTK 958 select SYS_SUPPORTS_ZBOOT 959 select SYS_SUPPORTS_ZBOOT_UART16550 960 help 961 Support for systems based on Netlogic XLR and XLS processors. 962 Say Y here if you have a XLR or XLS based board. 963 964config NLM_XLP_BOARD 965 bool "Netlogic XLP based systems" 966 select BOOT_ELF32 967 select NLM_COMMON 968 select SYS_HAS_CPU_XLP 969 select SYS_SUPPORTS_SMP 970 select HAVE_PCI 971 select SYS_SUPPORTS_32BIT_KERNEL 972 select SYS_SUPPORTS_64BIT_KERNEL 973 select PHYS_ADDR_T_64BIT 974 select GPIOLIB 975 select SYS_SUPPORTS_BIG_ENDIAN 976 select SYS_SUPPORTS_LITTLE_ENDIAN 977 select SYS_SUPPORTS_HIGHMEM 978 select NR_CPUS_DEFAULT_32 979 select CEVT_R4K 980 select CSRC_R4K 981 select IRQ_MIPS_CPU 982 select ZONE_DMA32 if 64BIT 983 select SYNC_R4K 984 select SYS_HAS_EARLY_PRINTK 985 select USE_OF 986 select SYS_SUPPORTS_ZBOOT 987 select SYS_SUPPORTS_ZBOOT_UART16550 988 help 989 This board is based on Netlogic XLP Processor. 990 Say Y here if you have a XLP based board. 991 992config MIPS_PARAVIRT 993 bool "Para-Virtualized guest system" 994 select CEVT_R4K 995 select CSRC_R4K 996 select SYS_SUPPORTS_64BIT_KERNEL 997 select SYS_SUPPORTS_32BIT_KERNEL 998 select SYS_SUPPORTS_BIG_ENDIAN 999 select SYS_SUPPORTS_SMP 1000 select NR_CPUS_DEFAULT_4 1001 select SYS_HAS_EARLY_PRINTK 1002 select SYS_HAS_CPU_MIPS32_R2 1003 select SYS_HAS_CPU_MIPS64_R2 1004 select SYS_HAS_CPU_CAVIUM_OCTEON 1005 select HAVE_PCI 1006 select SWAP_IO_SPACE 1007 help 1008 This option supports guest running under ???? 1009 1010endchoice 1011 1012source "arch/mips/alchemy/Kconfig" 1013source "arch/mips/ath25/Kconfig" 1014source "arch/mips/ath79/Kconfig" 1015source "arch/mips/bcm47xx/Kconfig" 1016source "arch/mips/bcm63xx/Kconfig" 1017source "arch/mips/bmips/Kconfig" 1018source "arch/mips/generic/Kconfig" 1019source "arch/mips/jazz/Kconfig" 1020source "arch/mips/jz4740/Kconfig" 1021source "arch/mips/lantiq/Kconfig" 1022source "arch/mips/lasat/Kconfig" 1023source "arch/mips/pic32/Kconfig" 1024source "arch/mips/pistachio/Kconfig" 1025source "arch/mips/pmcs-msp71xx/Kconfig" 1026source "arch/mips/ralink/Kconfig" 1027source "arch/mips/sgi-ip27/Kconfig" 1028source "arch/mips/sibyte/Kconfig" 1029source "arch/mips/txx9/Kconfig" 1030source "arch/mips/vr41xx/Kconfig" 1031source "arch/mips/cavium-octeon/Kconfig" 1032source "arch/mips/loongson32/Kconfig" 1033source "arch/mips/loongson64/Kconfig" 1034source "arch/mips/netlogic/Kconfig" 1035source "arch/mips/paravirt/Kconfig" 1036 1037endmenu 1038 1039config RWSEM_GENERIC_SPINLOCK 1040 bool 1041 default y 1042 1043config RWSEM_XCHGADD_ALGORITHM 1044 bool 1045 1046config GENERIC_HWEIGHT 1047 bool 1048 default y 1049 1050config GENERIC_CALIBRATE_DELAY 1051 bool 1052 default y 1053 1054config SCHED_OMIT_FRAME_POINTER 1055 bool 1056 default y 1057 1058# 1059# Select some configuration options automatically based on user selections. 1060# 1061config FW_ARC 1062 bool 1063 1064config ARCH_MAY_HAVE_PC_FDC 1065 bool 1066 1067config BOOT_RAW 1068 bool 1069 1070config CEVT_BCM1480 1071 bool 1072 1073config CEVT_DS1287 1074 bool 1075 1076config CEVT_GT641XX 1077 bool 1078 1079config CEVT_R4K 1080 bool 1081 1082config CEVT_SB1250 1083 bool 1084 1085config CEVT_TXX9 1086 bool 1087 1088config CSRC_BCM1480 1089 bool 1090 1091config CSRC_IOASIC 1092 bool 1093 1094config CSRC_R4K 1095 bool 1096 1097config CSRC_SB1250 1098 bool 1099 1100config MIPS_CLOCK_VSYSCALL 1101 def_bool CSRC_R4K || CLKSRC_MIPS_GIC 1102 1103config GPIO_TXX9 1104 select GPIOLIB 1105 bool 1106 1107config FW_CFE 1108 bool 1109 1110config ARCH_SUPPORTS_UPROBES 1111 bool 1112 1113config DMA_MAYBE_COHERENT 1114 select ARCH_HAS_DMA_COHERENCE_H 1115 select DMA_NONCOHERENT 1116 bool 1117 1118config DMA_PERDEV_COHERENT 1119 bool 1120 select DMA_NONCOHERENT 1121 1122config DMA_NONCOHERENT 1123 bool 1124 select ARCH_HAS_DMA_MMAP_PGPROT 1125 select ARCH_HAS_SYNC_DMA_FOR_DEVICE 1126 select NEED_DMA_MAP_STATE 1127 select ARCH_HAS_DMA_COHERENT_TO_PFN 1128 select DMA_NONCOHERENT_CACHE_SYNC 1129 1130config SYS_HAS_EARLY_PRINTK 1131 bool 1132 1133config SYS_SUPPORTS_HOTPLUG_CPU 1134 bool 1135 1136config MIPS_BONITO64 1137 bool 1138 1139config MIPS_MSC 1140 bool 1141 1142config MIPS_NILE4 1143 bool 1144 1145config SYNC_R4K 1146 bool 1147 1148config MIPS_MACHINE 1149 def_bool n 1150 1151config NO_IOPORT_MAP 1152 def_bool n 1153 1154config GENERIC_CSUM 1155 bool 1156 default y if !CPU_HAS_LOAD_STORE_LR 1157 1158config GENERIC_ISA_DMA 1159 bool 1160 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1161 select ISA_DMA_API 1162 1163config GENERIC_ISA_DMA_SUPPORT_BROKEN 1164 bool 1165 select GENERIC_ISA_DMA 1166 1167config ISA_DMA_API 1168 bool 1169 1170config HOLES_IN_ZONE 1171 bool 1172 1173config SYS_SUPPORTS_RELOCATABLE 1174 bool 1175 help 1176 Selected if the platform supports relocating the kernel. 1177 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF 1178 to allow access to command line and entropy sources. 1179 1180config MIPS_CBPF_JIT 1181 def_bool y 1182 depends on BPF_JIT && HAVE_CBPF_JIT 1183 1184config MIPS_EBPF_JIT 1185 def_bool y 1186 depends on BPF_JIT && HAVE_EBPF_JIT 1187 1188 1189# 1190# Endianness selection. Sufficiently obscure so many users don't know what to 1191# answer,so we try hard to limit the available choices. Also the use of a 1192# choice statement should be more obvious to the user. 1193# 1194choice 1195 prompt "Endianness selection" 1196 help 1197 Some MIPS machines can be configured for either little or big endian 1198 byte order. These modes require different kernels and a different 1199 Linux distribution. In general there is one preferred byteorder for a 1200 particular system but some systems are just as commonly used in the 1201 one or the other endianness. 1202 1203config CPU_BIG_ENDIAN 1204 bool "Big endian" 1205 depends on SYS_SUPPORTS_BIG_ENDIAN 1206 1207config CPU_LITTLE_ENDIAN 1208 bool "Little endian" 1209 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1210 1211endchoice 1212 1213config EXPORT_UASM 1214 bool 1215 1216config SYS_SUPPORTS_APM_EMULATION 1217 bool 1218 1219config SYS_SUPPORTS_BIG_ENDIAN 1220 bool 1221 1222config SYS_SUPPORTS_LITTLE_ENDIAN 1223 bool 1224 1225config SYS_SUPPORTS_HUGETLBFS 1226 bool 1227 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT 1228 default y 1229 1230config MIPS_HUGE_TLB_SUPPORT 1231 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1232 1233config IRQ_CPU_RM7K 1234 bool 1235 1236config IRQ_MSP_SLP 1237 bool 1238 1239config IRQ_MSP_CIC 1240 bool 1241 1242config IRQ_TXX9 1243 bool 1244 1245config IRQ_GT641XX 1246 bool 1247 1248config PCI_GT64XXX_PCI0 1249 bool 1250 1251config NO_EXCEPT_FILL 1252 bool 1253 1254config SOC_EMMA2RH 1255 bool 1256 select CEVT_R4K 1257 select CSRC_R4K 1258 select DMA_NONCOHERENT 1259 select IRQ_MIPS_CPU 1260 select SWAP_IO_SPACE 1261 select SYS_HAS_CPU_R5500 1262 select SYS_SUPPORTS_32BIT_KERNEL 1263 select SYS_SUPPORTS_64BIT_KERNEL 1264 select SYS_SUPPORTS_BIG_ENDIAN 1265 1266config SOC_PNX833X 1267 bool 1268 select CEVT_R4K 1269 select CSRC_R4K 1270 select IRQ_MIPS_CPU 1271 select DMA_NONCOHERENT 1272 select SYS_HAS_CPU_MIPS32_R2 1273 select SYS_SUPPORTS_32BIT_KERNEL 1274 select SYS_SUPPORTS_LITTLE_ENDIAN 1275 select SYS_SUPPORTS_BIG_ENDIAN 1276 select SYS_SUPPORTS_MIPS16 1277 select CPU_MIPSR2_IRQ_VI 1278 1279config SOC_PNX8335 1280 bool 1281 select SOC_PNX833X 1282 1283config MIPS_SPRAM 1284 bool 1285 1286config SWAP_IO_SPACE 1287 bool 1288 1289config SGI_HAS_INDYDOG 1290 bool 1291 1292config SGI_HAS_HAL2 1293 bool 1294 1295config SGI_HAS_SEEQ 1296 bool 1297 1298config SGI_HAS_WD93 1299 bool 1300 1301config SGI_HAS_ZILOG 1302 bool 1303 1304config SGI_HAS_I8042 1305 bool 1306 1307config DEFAULT_SGI_PARTITION 1308 bool 1309 1310config FW_ARC32 1311 bool 1312 1313config FW_SNIPROM 1314 bool 1315 1316config BOOT_ELF32 1317 bool 1318 1319config MIPS_L1_CACHE_SHIFT_4 1320 bool 1321 1322config MIPS_L1_CACHE_SHIFT_5 1323 bool 1324 1325config MIPS_L1_CACHE_SHIFT_6 1326 bool 1327 1328config MIPS_L1_CACHE_SHIFT_7 1329 bool 1330 1331config MIPS_L1_CACHE_SHIFT 1332 int 1333 default "7" if MIPS_L1_CACHE_SHIFT_7 1334 default "6" if MIPS_L1_CACHE_SHIFT_6 1335 default "5" if MIPS_L1_CACHE_SHIFT_5 1336 default "4" if MIPS_L1_CACHE_SHIFT_4 1337 default "5" 1338 1339config HAVE_STD_PC_SERIAL_PORT 1340 bool 1341 1342config ARC_CONSOLE 1343 bool "ARC console support" 1344 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1345 1346config ARC_MEMORY 1347 bool 1348 depends on MACH_JAZZ || SNI_RM || SGI_IP32 1349 default y 1350 1351config ARC_PROMLIB 1352 bool 1353 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 1354 default y 1355 1356config FW_ARC64 1357 bool 1358 1359config BOOT_ELF64 1360 bool 1361 1362menu "CPU selection" 1363 1364choice 1365 prompt "CPU type" 1366 default CPU_R4X00 1367 1368config CPU_LOONGSON3 1369 bool "Loongson 3 CPU" 1370 depends on SYS_HAS_CPU_LOONGSON3 1371 select ARCH_HAS_PHYS_TO_DMA 1372 select CPU_SUPPORTS_64BIT_KERNEL 1373 select CPU_SUPPORTS_HIGHMEM 1374 select CPU_SUPPORTS_HUGEPAGES 1375 select CPU_HAS_LOAD_STORE_LR 1376 select WEAK_ORDERING 1377 select WEAK_REORDERING_BEYOND_LLSC 1378 select MIPS_PGD_C0_CONTEXT 1379 select MIPS_L1_CACHE_SHIFT_6 1380 select GPIOLIB 1381 select SWIOTLB 1382 help 1383 The Loongson 3 processor implements the MIPS64R2 instruction 1384 set with many extensions. 1385 1386config LOONGSON3_ENHANCEMENT 1387 bool "New Loongson 3 CPU Enhancements" 1388 default n 1389 select CPU_MIPSR2 1390 select CPU_HAS_PREFETCH 1391 depends on CPU_LOONGSON3 1392 help 1393 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A 1394 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1395 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User 1396 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1397 Fast TLB refill support, etc. 1398 1399 This option enable those enhancements which are not probed at run 1400 time. If you want a generic kernel to run on all Loongson 3 machines, 1401 please say 'N' here. If you want a high-performance kernel to run on 1402 new Loongson 3 machines only, please say 'Y' here. 1403 1404config CPU_LOONGSON2E 1405 bool "Loongson 2E" 1406 depends on SYS_HAS_CPU_LOONGSON2E 1407 select CPU_LOONGSON2 1408 help 1409 The Loongson 2E processor implements the MIPS III instruction set 1410 with many extensions. 1411 1412 It has an internal FPGA northbridge, which is compatible to 1413 bonito64. 1414 1415config CPU_LOONGSON2F 1416 bool "Loongson 2F" 1417 depends on SYS_HAS_CPU_LOONGSON2F 1418 select CPU_LOONGSON2 1419 select GPIOLIB 1420 help 1421 The Loongson 2F processor implements the MIPS III instruction set 1422 with many extensions. 1423 1424 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1425 have a similar programming interface with FPGA northbridge used in 1426 Loongson2E. 1427 1428config CPU_LOONGSON1B 1429 bool "Loongson 1B" 1430 depends on SYS_HAS_CPU_LOONGSON1B 1431 select CPU_LOONGSON1 1432 select LEDS_GPIO_REGISTER 1433 help 1434 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1435 Release 1 instruction set and part of the MIPS32 Release 2 1436 instruction set. 1437 1438config CPU_LOONGSON1C 1439 bool "Loongson 1C" 1440 depends on SYS_HAS_CPU_LOONGSON1C 1441 select CPU_LOONGSON1 1442 select LEDS_GPIO_REGISTER 1443 help 1444 The Loongson 1C is a 32-bit SoC, which implements the MIPS32 1445 Release 1 instruction set and part of the MIPS32 Release 2 1446 instruction set. 1447 1448config CPU_MIPS32_R1 1449 bool "MIPS32 Release 1" 1450 depends on SYS_HAS_CPU_MIPS32_R1 1451 select CPU_HAS_PREFETCH 1452 select CPU_HAS_LOAD_STORE_LR 1453 select CPU_SUPPORTS_32BIT_KERNEL 1454 select CPU_SUPPORTS_HIGHMEM 1455 help 1456 Choose this option to build a kernel for release 1 or later of the 1457 MIPS32 architecture. Most modern embedded systems with a 32-bit 1458 MIPS processor are based on a MIPS32 processor. If you know the 1459 specific type of processor in your system, choose those that one 1460 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1461 Release 2 of the MIPS32 architecture is available since several 1462 years so chances are you even have a MIPS32 Release 2 processor 1463 in which case you should choose CPU_MIPS32_R2 instead for better 1464 performance. 1465 1466config CPU_MIPS32_R2 1467 bool "MIPS32 Release 2" 1468 depends on SYS_HAS_CPU_MIPS32_R2 1469 select CPU_HAS_PREFETCH 1470 select CPU_HAS_LOAD_STORE_LR 1471 select CPU_SUPPORTS_32BIT_KERNEL 1472 select CPU_SUPPORTS_HIGHMEM 1473 select CPU_SUPPORTS_MSA 1474 select HAVE_KVM 1475 help 1476 Choose this option to build a kernel for release 2 or later of the 1477 MIPS32 architecture. Most modern embedded systems with a 32-bit 1478 MIPS processor are based on a MIPS32 processor. If you know the 1479 specific type of processor in your system, choose those that one 1480 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1481 1482config CPU_MIPS32_R6 1483 bool "MIPS32 Release 6" 1484 depends on SYS_HAS_CPU_MIPS32_R6 1485 select CPU_HAS_PREFETCH 1486 select CPU_SUPPORTS_32BIT_KERNEL 1487 select CPU_SUPPORTS_HIGHMEM 1488 select CPU_SUPPORTS_MSA 1489 select HAVE_KVM 1490 select MIPS_O32_FP64_SUPPORT 1491 help 1492 Choose this option to build a kernel for release 6 or later of the 1493 MIPS32 architecture. New MIPS processors, starting with the Warrior 1494 family, are based on a MIPS32r6 processor. If you own an older 1495 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1496 1497config CPU_MIPS64_R1 1498 bool "MIPS64 Release 1" 1499 depends on SYS_HAS_CPU_MIPS64_R1 1500 select CPU_HAS_PREFETCH 1501 select CPU_HAS_LOAD_STORE_LR 1502 select CPU_SUPPORTS_32BIT_KERNEL 1503 select CPU_SUPPORTS_64BIT_KERNEL 1504 select CPU_SUPPORTS_HIGHMEM 1505 select CPU_SUPPORTS_HUGEPAGES 1506 help 1507 Choose this option to build a kernel for release 1 or later of the 1508 MIPS64 architecture. Many modern embedded systems with a 64-bit 1509 MIPS processor are based on a MIPS64 processor. If you know the 1510 specific type of processor in your system, choose those that one 1511 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1512 Release 2 of the MIPS64 architecture is available since several 1513 years so chances are you even have a MIPS64 Release 2 processor 1514 in which case you should choose CPU_MIPS64_R2 instead for better 1515 performance. 1516 1517config CPU_MIPS64_R2 1518 bool "MIPS64 Release 2" 1519 depends on SYS_HAS_CPU_MIPS64_R2 1520 select CPU_HAS_PREFETCH 1521 select CPU_HAS_LOAD_STORE_LR 1522 select CPU_SUPPORTS_32BIT_KERNEL 1523 select CPU_SUPPORTS_64BIT_KERNEL 1524 select CPU_SUPPORTS_HIGHMEM 1525 select CPU_SUPPORTS_HUGEPAGES 1526 select CPU_SUPPORTS_MSA 1527 select HAVE_KVM 1528 help 1529 Choose this option to build a kernel for release 2 or later of the 1530 MIPS64 architecture. Many modern embedded systems with a 64-bit 1531 MIPS processor are based on a MIPS64 processor. If you know the 1532 specific type of processor in your system, choose those that one 1533 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1534 1535config CPU_MIPS64_R6 1536 bool "MIPS64 Release 6" 1537 depends on SYS_HAS_CPU_MIPS64_R6 1538 select CPU_HAS_PREFETCH 1539 select CPU_SUPPORTS_32BIT_KERNEL 1540 select CPU_SUPPORTS_64BIT_KERNEL 1541 select CPU_SUPPORTS_HIGHMEM 1542 select CPU_SUPPORTS_HUGEPAGES 1543 select CPU_SUPPORTS_MSA 1544 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1545 select HAVE_KVM 1546 help 1547 Choose this option to build a kernel for release 6 or later of the 1548 MIPS64 architecture. New MIPS processors, starting with the Warrior 1549 family, are based on a MIPS64r6 processor. If you own an older 1550 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1551 1552config CPU_R3000 1553 bool "R3000" 1554 depends on SYS_HAS_CPU_R3000 1555 select CPU_HAS_WB 1556 select CPU_HAS_LOAD_STORE_LR 1557 select CPU_SUPPORTS_32BIT_KERNEL 1558 select CPU_SUPPORTS_HIGHMEM 1559 help 1560 Please make sure to pick the right CPU type. Linux/MIPS is not 1561 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1562 *not* work on R4000 machines and vice versa. However, since most 1563 of the supported machines have an R4000 (or similar) CPU, R4x00 1564 might be a safe bet. If the resulting kernel does not work, 1565 try to recompile with R3000. 1566 1567config CPU_TX39XX 1568 bool "R39XX" 1569 depends on SYS_HAS_CPU_TX39XX 1570 select CPU_SUPPORTS_32BIT_KERNEL 1571 select CPU_HAS_LOAD_STORE_LR 1572 1573config CPU_VR41XX 1574 bool "R41xx" 1575 depends on SYS_HAS_CPU_VR41XX 1576 select CPU_SUPPORTS_32BIT_KERNEL 1577 select CPU_SUPPORTS_64BIT_KERNEL 1578 select CPU_HAS_LOAD_STORE_LR 1579 help 1580 The options selects support for the NEC VR4100 series of processors. 1581 Only choose this option if you have one of these processors as a 1582 kernel built with this option will not run on any other type of 1583 processor or vice versa. 1584 1585config CPU_R4300 1586 bool "R4300" 1587 depends on SYS_HAS_CPU_R4300 1588 select CPU_SUPPORTS_32BIT_KERNEL 1589 select CPU_SUPPORTS_64BIT_KERNEL 1590 select CPU_HAS_LOAD_STORE_LR 1591 help 1592 MIPS Technologies R4300-series processors. 1593 1594config CPU_R4X00 1595 bool "R4x00" 1596 depends on SYS_HAS_CPU_R4X00 1597 select CPU_SUPPORTS_32BIT_KERNEL 1598 select CPU_SUPPORTS_64BIT_KERNEL 1599 select CPU_SUPPORTS_HUGEPAGES 1600 select CPU_HAS_LOAD_STORE_LR 1601 help 1602 MIPS Technologies R4000-series processors other than 4300, including 1603 the R4000, R4400, R4600, and 4700. 1604 1605config CPU_TX49XX 1606 bool "R49XX" 1607 depends on SYS_HAS_CPU_TX49XX 1608 select CPU_HAS_PREFETCH 1609 select CPU_HAS_LOAD_STORE_LR 1610 select CPU_SUPPORTS_32BIT_KERNEL 1611 select CPU_SUPPORTS_64BIT_KERNEL 1612 select CPU_SUPPORTS_HUGEPAGES 1613 1614config CPU_R5000 1615 bool "R5000" 1616 depends on SYS_HAS_CPU_R5000 1617 select CPU_SUPPORTS_32BIT_KERNEL 1618 select CPU_SUPPORTS_64BIT_KERNEL 1619 select CPU_SUPPORTS_HUGEPAGES 1620 select CPU_HAS_LOAD_STORE_LR 1621 help 1622 MIPS Technologies R5000-series processors other than the Nevada. 1623 1624config CPU_R5432 1625 bool "R5432" 1626 depends on SYS_HAS_CPU_R5432 1627 select CPU_SUPPORTS_32BIT_KERNEL 1628 select CPU_SUPPORTS_64BIT_KERNEL 1629 select CPU_SUPPORTS_HUGEPAGES 1630 select CPU_HAS_LOAD_STORE_LR 1631 1632config CPU_R5500 1633 bool "R5500" 1634 depends on SYS_HAS_CPU_R5500 1635 select CPU_SUPPORTS_32BIT_KERNEL 1636 select CPU_SUPPORTS_64BIT_KERNEL 1637 select CPU_SUPPORTS_HUGEPAGES 1638 select CPU_HAS_LOAD_STORE_LR 1639 help 1640 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1641 instruction set. 1642 1643config CPU_NEVADA 1644 bool "RM52xx" 1645 depends on SYS_HAS_CPU_NEVADA 1646 select CPU_SUPPORTS_32BIT_KERNEL 1647 select CPU_SUPPORTS_64BIT_KERNEL 1648 select CPU_SUPPORTS_HUGEPAGES 1649 select CPU_HAS_LOAD_STORE_LR 1650 help 1651 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1652 1653config CPU_R8000 1654 bool "R8000" 1655 depends on SYS_HAS_CPU_R8000 1656 select CPU_HAS_PREFETCH 1657 select CPU_HAS_LOAD_STORE_LR 1658 select CPU_SUPPORTS_64BIT_KERNEL 1659 help 1660 MIPS Technologies R8000 processors. Note these processors are 1661 uncommon and the support for them is incomplete. 1662 1663config CPU_R10000 1664 bool "R10000" 1665 depends on SYS_HAS_CPU_R10000 1666 select CPU_HAS_PREFETCH 1667 select CPU_HAS_LOAD_STORE_LR 1668 select CPU_SUPPORTS_32BIT_KERNEL 1669 select CPU_SUPPORTS_64BIT_KERNEL 1670 select CPU_SUPPORTS_HIGHMEM 1671 select CPU_SUPPORTS_HUGEPAGES 1672 help 1673 MIPS Technologies R10000-series processors. 1674 1675config CPU_RM7000 1676 bool "RM7000" 1677 depends on SYS_HAS_CPU_RM7000 1678 select CPU_HAS_PREFETCH 1679 select CPU_HAS_LOAD_STORE_LR 1680 select CPU_SUPPORTS_32BIT_KERNEL 1681 select CPU_SUPPORTS_64BIT_KERNEL 1682 select CPU_SUPPORTS_HIGHMEM 1683 select CPU_SUPPORTS_HUGEPAGES 1684 1685config CPU_SB1 1686 bool "SB1" 1687 depends on SYS_HAS_CPU_SB1 1688 select CPU_HAS_LOAD_STORE_LR 1689 select CPU_SUPPORTS_32BIT_KERNEL 1690 select CPU_SUPPORTS_64BIT_KERNEL 1691 select CPU_SUPPORTS_HIGHMEM 1692 select CPU_SUPPORTS_HUGEPAGES 1693 select WEAK_ORDERING 1694 1695config CPU_CAVIUM_OCTEON 1696 bool "Cavium Octeon processor" 1697 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1698 select CPU_HAS_PREFETCH 1699 select CPU_HAS_LOAD_STORE_LR 1700 select CPU_SUPPORTS_64BIT_KERNEL 1701 select WEAK_ORDERING 1702 select CPU_SUPPORTS_HIGHMEM 1703 select CPU_SUPPORTS_HUGEPAGES 1704 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1705 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1706 select MIPS_L1_CACHE_SHIFT_7 1707 select HAVE_KVM 1708 help 1709 The Cavium Octeon processor is a highly integrated chip containing 1710 many ethernet hardware widgets for networking tasks. The processor 1711 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1712 Full details can be found at http://www.caviumnetworks.com. 1713 1714config CPU_BMIPS 1715 bool "Broadcom BMIPS" 1716 depends on SYS_HAS_CPU_BMIPS 1717 select CPU_MIPS32 1718 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1719 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1720 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1721 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1722 select CPU_SUPPORTS_32BIT_KERNEL 1723 select DMA_NONCOHERENT 1724 select IRQ_MIPS_CPU 1725 select SWAP_IO_SPACE 1726 select WEAK_ORDERING 1727 select CPU_SUPPORTS_HIGHMEM 1728 select CPU_HAS_PREFETCH 1729 select CPU_HAS_LOAD_STORE_LR 1730 select CPU_SUPPORTS_CPUFREQ 1731 select MIPS_EXTERNAL_TIMER 1732 help 1733 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1734 1735config CPU_XLR 1736 bool "Netlogic XLR SoC" 1737 depends on SYS_HAS_CPU_XLR 1738 select CPU_HAS_LOAD_STORE_LR 1739 select CPU_SUPPORTS_32BIT_KERNEL 1740 select CPU_SUPPORTS_64BIT_KERNEL 1741 select CPU_SUPPORTS_HIGHMEM 1742 select CPU_SUPPORTS_HUGEPAGES 1743 select WEAK_ORDERING 1744 select WEAK_REORDERING_BEYOND_LLSC 1745 help 1746 Netlogic Microsystems XLR/XLS processors. 1747 1748config CPU_XLP 1749 bool "Netlogic XLP SoC" 1750 depends on SYS_HAS_CPU_XLP 1751 select CPU_SUPPORTS_32BIT_KERNEL 1752 select CPU_SUPPORTS_64BIT_KERNEL 1753 select CPU_SUPPORTS_HIGHMEM 1754 select WEAK_ORDERING 1755 select WEAK_REORDERING_BEYOND_LLSC 1756 select CPU_HAS_PREFETCH 1757 select CPU_HAS_LOAD_STORE_LR 1758 select CPU_MIPSR2 1759 select CPU_SUPPORTS_HUGEPAGES 1760 select MIPS_ASID_BITS_VARIABLE 1761 help 1762 Netlogic Microsystems XLP processors. 1763endchoice 1764 1765config CPU_MIPS32_3_5_FEATURES 1766 bool "MIPS32 Release 3.5 Features" 1767 depends on SYS_HAS_CPU_MIPS32_R3_5 1768 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6 1769 help 1770 Choose this option to build a kernel for release 2 or later of the 1771 MIPS32 architecture including features from the 3.5 release such as 1772 support for Enhanced Virtual Addressing (EVA). 1773 1774config CPU_MIPS32_3_5_EVA 1775 bool "Enhanced Virtual Addressing (EVA)" 1776 depends on CPU_MIPS32_3_5_FEATURES 1777 select EVA 1778 default y 1779 help 1780 Choose this option if you want to enable the Enhanced Virtual 1781 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1782 One of its primary benefits is an increase in the maximum size 1783 of lowmem (up to 3GB). If unsure, say 'N' here. 1784 1785config CPU_MIPS32_R5_FEATURES 1786 bool "MIPS32 Release 5 Features" 1787 depends on SYS_HAS_CPU_MIPS32_R5 1788 depends on CPU_MIPS32_R2 1789 help 1790 Choose this option to build a kernel for release 2 or later of the 1791 MIPS32 architecture including features from release 5 such as 1792 support for Extended Physical Addressing (XPA). 1793 1794config CPU_MIPS32_R5_XPA 1795 bool "Extended Physical Addressing (XPA)" 1796 depends on CPU_MIPS32_R5_FEATURES 1797 depends on !EVA 1798 depends on !PAGE_SIZE_4KB 1799 depends on SYS_SUPPORTS_HIGHMEM 1800 select XPA 1801 select HIGHMEM 1802 select PHYS_ADDR_T_64BIT 1803 default n 1804 help 1805 Choose this option if you want to enable the Extended Physical 1806 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1807 benefit is to increase physical addressing equal to or greater 1808 than 40 bits. Note that this has the side effect of turning on 1809 64-bit addressing which in turn makes the PTEs 64-bit in size. 1810 If unsure, say 'N' here. 1811 1812if CPU_LOONGSON2F 1813config CPU_NOP_WORKAROUNDS 1814 bool 1815 1816config CPU_JUMP_WORKAROUNDS 1817 bool 1818 1819config CPU_LOONGSON2F_WORKAROUNDS 1820 bool "Loongson 2F Workarounds" 1821 default y 1822 select CPU_NOP_WORKAROUNDS 1823 select CPU_JUMP_WORKAROUNDS 1824 help 1825 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1826 require workarounds. Without workarounds the system may hang 1827 unexpectedly. For more information please refer to the gas 1828 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1829 1830 Loongson 2F03 and later have fixed these issues and no workarounds 1831 are needed. The workarounds have no significant side effect on them 1832 but may decrease the performance of the system so this option should 1833 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1834 systems. 1835 1836 If unsure, please say Y. 1837endif # CPU_LOONGSON2F 1838 1839config SYS_SUPPORTS_ZBOOT 1840 bool 1841 select HAVE_KERNEL_GZIP 1842 select HAVE_KERNEL_BZIP2 1843 select HAVE_KERNEL_LZ4 1844 select HAVE_KERNEL_LZMA 1845 select HAVE_KERNEL_LZO 1846 select HAVE_KERNEL_XZ 1847 1848config SYS_SUPPORTS_ZBOOT_UART16550 1849 bool 1850 select SYS_SUPPORTS_ZBOOT 1851 1852config SYS_SUPPORTS_ZBOOT_UART_PROM 1853 bool 1854 select SYS_SUPPORTS_ZBOOT 1855 1856config CPU_LOONGSON2 1857 bool 1858 select CPU_SUPPORTS_32BIT_KERNEL 1859 select CPU_SUPPORTS_64BIT_KERNEL 1860 select CPU_SUPPORTS_HIGHMEM 1861 select CPU_SUPPORTS_HUGEPAGES 1862 select ARCH_HAS_PHYS_TO_DMA 1863 select CPU_HAS_LOAD_STORE_LR 1864 1865config CPU_LOONGSON1 1866 bool 1867 select CPU_MIPS32 1868 select CPU_MIPSR2 1869 select CPU_HAS_PREFETCH 1870 select CPU_HAS_LOAD_STORE_LR 1871 select CPU_SUPPORTS_32BIT_KERNEL 1872 select CPU_SUPPORTS_HIGHMEM 1873 select CPU_SUPPORTS_CPUFREQ 1874 1875config CPU_BMIPS32_3300 1876 select SMP_UP if SMP 1877 bool 1878 1879config CPU_BMIPS4350 1880 bool 1881 select SYS_SUPPORTS_SMP 1882 select SYS_SUPPORTS_HOTPLUG_CPU 1883 1884config CPU_BMIPS4380 1885 bool 1886 select MIPS_L1_CACHE_SHIFT_6 1887 select SYS_SUPPORTS_SMP 1888 select SYS_SUPPORTS_HOTPLUG_CPU 1889 select CPU_HAS_RIXI 1890 1891config CPU_BMIPS5000 1892 bool 1893 select MIPS_CPU_SCACHE 1894 select MIPS_L1_CACHE_SHIFT_7 1895 select SYS_SUPPORTS_SMP 1896 select SYS_SUPPORTS_HOTPLUG_CPU 1897 select CPU_HAS_RIXI 1898 1899config SYS_HAS_CPU_LOONGSON3 1900 bool 1901 select CPU_SUPPORTS_CPUFREQ 1902 select CPU_HAS_RIXI 1903 1904config SYS_HAS_CPU_LOONGSON2E 1905 bool 1906 1907config SYS_HAS_CPU_LOONGSON2F 1908 bool 1909 select CPU_SUPPORTS_CPUFREQ 1910 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1911 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1912 1913config SYS_HAS_CPU_LOONGSON1B 1914 bool 1915 1916config SYS_HAS_CPU_LOONGSON1C 1917 bool 1918 1919config SYS_HAS_CPU_MIPS32_R1 1920 bool 1921 1922config SYS_HAS_CPU_MIPS32_R2 1923 bool 1924 1925config SYS_HAS_CPU_MIPS32_R3_5 1926 bool 1927 1928config SYS_HAS_CPU_MIPS32_R5 1929 bool 1930 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1931 1932config SYS_HAS_CPU_MIPS32_R6 1933 bool 1934 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1935 1936config SYS_HAS_CPU_MIPS64_R1 1937 bool 1938 1939config SYS_HAS_CPU_MIPS64_R2 1940 bool 1941 1942config SYS_HAS_CPU_MIPS64_R6 1943 bool 1944 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1945 1946config SYS_HAS_CPU_R3000 1947 bool 1948 1949config SYS_HAS_CPU_TX39XX 1950 bool 1951 1952config SYS_HAS_CPU_VR41XX 1953 bool 1954 1955config SYS_HAS_CPU_R4300 1956 bool 1957 1958config SYS_HAS_CPU_R4X00 1959 bool 1960 1961config SYS_HAS_CPU_TX49XX 1962 bool 1963 1964config SYS_HAS_CPU_R5000 1965 bool 1966 1967config SYS_HAS_CPU_R5432 1968 bool 1969 1970config SYS_HAS_CPU_R5500 1971 bool 1972 1973config SYS_HAS_CPU_NEVADA 1974 bool 1975 1976config SYS_HAS_CPU_R8000 1977 bool 1978 1979config SYS_HAS_CPU_R10000 1980 bool 1981 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1982 1983config SYS_HAS_CPU_RM7000 1984 bool 1985 1986config SYS_HAS_CPU_SB1 1987 bool 1988 1989config SYS_HAS_CPU_CAVIUM_OCTEON 1990 bool 1991 1992config SYS_HAS_CPU_BMIPS 1993 bool 1994 1995config SYS_HAS_CPU_BMIPS32_3300 1996 bool 1997 select SYS_HAS_CPU_BMIPS 1998 1999config SYS_HAS_CPU_BMIPS4350 2000 bool 2001 select SYS_HAS_CPU_BMIPS 2002 2003config SYS_HAS_CPU_BMIPS4380 2004 bool 2005 select SYS_HAS_CPU_BMIPS 2006 2007config SYS_HAS_CPU_BMIPS5000 2008 bool 2009 select SYS_HAS_CPU_BMIPS 2010 select ARCH_HAS_SYNC_DMA_FOR_CPU 2011 2012config SYS_HAS_CPU_XLR 2013 bool 2014 2015config SYS_HAS_CPU_XLP 2016 bool 2017 2018# 2019# CPU may reorder R->R, R->W, W->R, W->W 2020# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 2021# 2022config WEAK_ORDERING 2023 bool 2024 2025# 2026# CPU may reorder reads and writes beyond LL/SC 2027# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 2028# 2029config WEAK_REORDERING_BEYOND_LLSC 2030 bool 2031endmenu 2032 2033# 2034# These two indicate any level of the MIPS32 and MIPS64 architecture 2035# 2036config CPU_MIPS32 2037 bool 2038 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6 2039 2040config CPU_MIPS64 2041 bool 2042 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 2043 2044# 2045# These indicate the revision of the architecture 2046# 2047config CPU_MIPSR1 2048 bool 2049 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 2050 2051config CPU_MIPSR2 2052 bool 2053 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2054 select CPU_HAS_RIXI 2055 select MIPS_SPRAM 2056 2057config CPU_MIPSR6 2058 bool 2059 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2060 select CPU_HAS_RIXI 2061 select HAVE_ARCH_BITREVERSE 2062 select MIPS_ASID_BITS_VARIABLE 2063 select MIPS_CRC_SUPPORT 2064 select MIPS_SPRAM 2065 2066config TARGET_ISA_REV 2067 int 2068 default 1 if CPU_MIPSR1 2069 default 2 if CPU_MIPSR2 2070 default 6 if CPU_MIPSR6 2071 default 0 2072 help 2073 Reflects the ISA revision being targeted by the kernel build. This 2074 is effectively the Kconfig equivalent of MIPS_ISA_REV. 2075 2076config EVA 2077 bool 2078 2079config XPA 2080 bool 2081 2082config SYS_SUPPORTS_32BIT_KERNEL 2083 bool 2084config SYS_SUPPORTS_64BIT_KERNEL 2085 bool 2086config CPU_SUPPORTS_32BIT_KERNEL 2087 bool 2088config CPU_SUPPORTS_64BIT_KERNEL 2089 bool 2090config CPU_SUPPORTS_CPUFREQ 2091 bool 2092config CPU_SUPPORTS_ADDRWINCFG 2093 bool 2094config CPU_SUPPORTS_HUGEPAGES 2095 bool 2096config CPU_SUPPORTS_UNCACHED_ACCELERATED 2097 bool 2098config MIPS_PGD_C0_CONTEXT 2099 bool 2100 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP 2101 2102# 2103# Set to y for ptrace access to watch registers. 2104# 2105config HARDWARE_WATCHPOINTS 2106 bool 2107 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2108 2109menu "Kernel type" 2110 2111choice 2112 prompt "Kernel code model" 2113 help 2114 You should only select this option if you have a workload that 2115 actually benefits from 64-bit processing or if your machine has 2116 large memory. You will only be presented a single option in this 2117 menu if your system does not support both 32-bit and 64-bit kernels. 2118 2119config 32BIT 2120 bool "32-bit kernel" 2121 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2122 select TRAD_SIGNALS 2123 help 2124 Select this option if you want to build a 32-bit kernel. 2125 2126config 64BIT 2127 bool "64-bit kernel" 2128 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2129 help 2130 Select this option if you want to build a 64-bit kernel. 2131 2132endchoice 2133 2134config KVM_GUEST 2135 bool "KVM Guest Kernel" 2136 depends on BROKEN_ON_SMP 2137 help 2138 Select this option if building a guest kernel for KVM (Trap & Emulate) 2139 mode. 2140 2141config KVM_GUEST_TIMER_FREQ 2142 int "Count/Compare Timer Frequency (MHz)" 2143 depends on KVM_GUEST 2144 default 100 2145 help 2146 Set this to non-zero if building a guest kernel for KVM to skip RTC 2147 emulation when determining guest CPU Frequency. Instead, the guest's 2148 timer frequency is specified directly. 2149 2150config MIPS_VA_BITS_48 2151 bool "48 bits virtual memory" 2152 depends on 64BIT 2153 help 2154 Support a maximum at least 48 bits of application virtual 2155 memory. Default is 40 bits or less, depending on the CPU. 2156 For page sizes 16k and above, this option results in a small 2157 memory overhead for page tables. For 4k page size, a fourth 2158 level of page tables is added which imposes both a memory 2159 overhead as well as slower TLB fault handling. 2160 2161 If unsure, say N. 2162 2163choice 2164 prompt "Kernel page size" 2165 default PAGE_SIZE_4KB 2166 2167config PAGE_SIZE_4KB 2168 bool "4kB" 2169 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3 2170 help 2171 This option select the standard 4kB Linux page size. On some 2172 R3000-family processors this is the only available page size. Using 2173 4kB page size will minimize memory consumption and is therefore 2174 recommended for low memory systems. 2175 2176config PAGE_SIZE_8KB 2177 bool "8kB" 2178 depends on CPU_R8000 || CPU_CAVIUM_OCTEON 2179 depends on !MIPS_VA_BITS_48 2180 help 2181 Using 8kB page size will result in higher performance kernel at 2182 the price of higher memory consumption. This option is available 2183 only on R8000 and cnMIPS processors. Note that you will need a 2184 suitable Linux distribution to support this. 2185 2186config PAGE_SIZE_16KB 2187 bool "16kB" 2188 depends on !CPU_R3000 && !CPU_TX39XX 2189 help 2190 Using 16kB page size will result in higher performance kernel at 2191 the price of higher memory consumption. This option is available on 2192 all non-R3000 family processors. Note that you will need a suitable 2193 Linux distribution to support this. 2194 2195config PAGE_SIZE_32KB 2196 bool "32kB" 2197 depends on CPU_CAVIUM_OCTEON 2198 depends on !MIPS_VA_BITS_48 2199 help 2200 Using 32kB page size will result in higher performance kernel at 2201 the price of higher memory consumption. This option is available 2202 only on cnMIPS cores. Note that you will need a suitable Linux 2203 distribution to support this. 2204 2205config PAGE_SIZE_64KB 2206 bool "64kB" 2207 depends on !CPU_R3000 && !CPU_TX39XX 2208 help 2209 Using 64kB page size will result in higher performance kernel at 2210 the price of higher memory consumption. This option is available on 2211 all non-R3000 family processor. Not that at the time of this 2212 writing this option is still high experimental. 2213 2214endchoice 2215 2216config FORCE_MAX_ZONEORDER 2217 int "Maximum zone order" 2218 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2219 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2220 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2221 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2222 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2223 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2224 range 11 64 2225 default "11" 2226 help 2227 The kernel memory allocator divides physically contiguous memory 2228 blocks into "zones", where each zone is a power of two number of 2229 pages. This option selects the largest power of two that the kernel 2230 keeps in the memory allocator. If you need to allocate very large 2231 blocks of physically contiguous memory, then you may need to 2232 increase this value. 2233 2234 This config option is actually maximum order plus one. For example, 2235 a value of 11 means that the largest free memory block is 2^10 pages. 2236 2237 The page size is not necessarily 4KB. Keep this in mind 2238 when choosing a value for this option. 2239 2240config BOARD_SCACHE 2241 bool 2242 2243config IP22_CPU_SCACHE 2244 bool 2245 select BOARD_SCACHE 2246 2247# 2248# Support for a MIPS32 / MIPS64 style S-caches 2249# 2250config MIPS_CPU_SCACHE 2251 bool 2252 select BOARD_SCACHE 2253 2254config R5000_CPU_SCACHE 2255 bool 2256 select BOARD_SCACHE 2257 2258config RM7000_CPU_SCACHE 2259 bool 2260 select BOARD_SCACHE 2261 2262config SIBYTE_DMA_PAGEOPS 2263 bool "Use DMA to clear/copy pages" 2264 depends on CPU_SB1 2265 help 2266 Instead of using the CPU to zero and copy pages, use a Data Mover 2267 channel. These DMA channels are otherwise unused by the standard 2268 SiByte Linux port. Seems to give a small performance benefit. 2269 2270config CPU_HAS_PREFETCH 2271 bool 2272 2273config CPU_GENERIC_DUMP_TLB 2274 bool 2275 default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX) 2276 2277config MIPS_FP_SUPPORT 2278 bool "Floating Point support" if EXPERT 2279 default y 2280 help 2281 Select y to include support for floating point in the kernel 2282 including initialization of FPU hardware, FP context save & restore 2283 and emulation of an FPU where necessary. Without this support any 2284 userland program attempting to use floating point instructions will 2285 receive a SIGILL. 2286 2287 If you know that your userland will not attempt to use floating point 2288 instructions then you can say n here to shrink the kernel a little. 2289 2290 If unsure, say y. 2291 2292config CPU_R2300_FPU 2293 bool 2294 depends on MIPS_FP_SUPPORT 2295 default y if CPU_R3000 || CPU_TX39XX 2296 2297config CPU_R4K_FPU 2298 bool 2299 depends on MIPS_FP_SUPPORT 2300 default y if !CPU_R2300_FPU 2301 2302config CPU_R4K_CACHE_TLB 2303 bool 2304 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 2305 2306config MIPS_MT_SMP 2307 bool "MIPS MT SMP support (1 TC on each available VPE)" 2308 default y 2309 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS 2310 select CPU_MIPSR2_IRQ_VI 2311 select CPU_MIPSR2_IRQ_EI 2312 select SYNC_R4K 2313 select MIPS_MT 2314 select SMP 2315 select SMP_UP 2316 select SYS_SUPPORTS_SMP 2317 select SYS_SUPPORTS_SCHED_SMT 2318 select MIPS_PERF_SHARED_TC_COUNTERS 2319 help 2320 This is a kernel model which is known as SMVP. This is supported 2321 on cores with the MT ASE and uses the available VPEs to implement 2322 virtual processors which supports SMP. This is equivalent to the 2323 Intel Hyperthreading feature. For further information go to 2324 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2325 2326config MIPS_MT 2327 bool 2328 2329config SCHED_SMT 2330 bool "SMT (multithreading) scheduler support" 2331 depends on SYS_SUPPORTS_SCHED_SMT 2332 default n 2333 help 2334 SMT scheduler support improves the CPU scheduler's decision making 2335 when dealing with MIPS MT enabled cores at a cost of slightly 2336 increased overhead in some places. If unsure say N here. 2337 2338config SYS_SUPPORTS_SCHED_SMT 2339 bool 2340 2341config SYS_SUPPORTS_MULTITHREADING 2342 bool 2343 2344config MIPS_MT_FPAFF 2345 bool "Dynamic FPU affinity for FP-intensive threads" 2346 default y 2347 depends on MIPS_MT_SMP 2348 2349config MIPSR2_TO_R6_EMULATOR 2350 bool "MIPS R2-to-R6 emulator" 2351 depends on CPU_MIPSR6 2352 depends on MIPS_FP_SUPPORT 2353 default y 2354 help 2355 Choose this option if you want to run non-R6 MIPS userland code. 2356 Even if you say 'Y' here, the emulator will still be disabled by 2357 default. You can enable it using the 'mipsr2emu' kernel option. 2358 The only reason this is a build-time option is to save ~14K from the 2359 final kernel image. 2360 2361config SYS_SUPPORTS_VPE_LOADER 2362 bool 2363 depends on SYS_SUPPORTS_MULTITHREADING 2364 help 2365 Indicates that the platform supports the VPE loader, and provides 2366 physical_memsize. 2367 2368config MIPS_VPE_LOADER 2369 bool "VPE loader support." 2370 depends on SYS_SUPPORTS_VPE_LOADER && MODULES 2371 select CPU_MIPSR2_IRQ_VI 2372 select CPU_MIPSR2_IRQ_EI 2373 select MIPS_MT 2374 help 2375 Includes a loader for loading an elf relocatable object 2376 onto another VPE and running it. 2377 2378config MIPS_VPE_LOADER_CMP 2379 bool 2380 default "y" 2381 depends on MIPS_VPE_LOADER && MIPS_CMP 2382 2383config MIPS_VPE_LOADER_MT 2384 bool 2385 default "y" 2386 depends on MIPS_VPE_LOADER && !MIPS_CMP 2387 2388config MIPS_VPE_LOADER_TOM 2389 bool "Load VPE program into memory hidden from linux" 2390 depends on MIPS_VPE_LOADER 2391 default y 2392 help 2393 The loader can use memory that is present but has been hidden from 2394 Linux using the kernel command line option "mem=xxMB". It's up to 2395 you to ensure the amount you put in the option and the space your 2396 program requires is less or equal to the amount physically present. 2397 2398config MIPS_VPE_APSP_API 2399 bool "Enable support for AP/SP API (RTLX)" 2400 depends on MIPS_VPE_LOADER 2401 2402config MIPS_VPE_APSP_API_CMP 2403 bool 2404 default "y" 2405 depends on MIPS_VPE_APSP_API && MIPS_CMP 2406 2407config MIPS_VPE_APSP_API_MT 2408 bool 2409 default "y" 2410 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2411 2412config MIPS_CMP 2413 bool "MIPS CMP framework support (DEPRECATED)" 2414 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2415 select SMP 2416 select SYNC_R4K 2417 select SYS_SUPPORTS_SMP 2418 select WEAK_ORDERING 2419 default n 2420 help 2421 Select this if you are using a bootloader which implements the "CMP 2422 framework" protocol (ie. YAMON) and want your kernel to make use of 2423 its ability to start secondary CPUs. 2424 2425 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2426 instead of this. 2427 2428config MIPS_CPS 2429 bool "MIPS Coherent Processing System support" 2430 depends on SYS_SUPPORTS_MIPS_CPS 2431 select MIPS_CM 2432 select MIPS_CPS_PM if HOTPLUG_CPU 2433 select SMP 2434 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2435 select SYS_SUPPORTS_HOTPLUG_CPU 2436 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6 2437 select SYS_SUPPORTS_SMP 2438 select WEAK_ORDERING 2439 help 2440 Select this if you wish to run an SMP kernel across multiple cores 2441 within a MIPS Coherent Processing System. When this option is 2442 enabled the kernel will probe for other cores and boot them with 2443 no external assistance. It is safe to enable this when hardware 2444 support is unavailable. 2445 2446config MIPS_CPS_PM 2447 depends on MIPS_CPS 2448 bool 2449 2450config MIPS_CM 2451 bool 2452 select MIPS_CPC 2453 2454config MIPS_CPC 2455 bool 2456 2457config SB1_PASS_2_WORKAROUNDS 2458 bool 2459 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2460 default y 2461 2462config SB1_PASS_2_1_WORKAROUNDS 2463 bool 2464 depends on CPU_SB1 && CPU_SB1_PASS_2 2465 default y 2466 2467 2468choice 2469 prompt "SmartMIPS or microMIPS ASE support" 2470 2471config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2472 bool "None" 2473 help 2474 Select this if you want neither microMIPS nor SmartMIPS support 2475 2476config CPU_HAS_SMARTMIPS 2477 depends on SYS_SUPPORTS_SMARTMIPS 2478 bool "SmartMIPS" 2479 help 2480 SmartMIPS is a extension of the MIPS32 architecture aimed at 2481 increased security at both hardware and software level for 2482 smartcards. Enabling this option will allow proper use of the 2483 SmartMIPS instructions by Linux applications. However a kernel with 2484 this option will not work on a MIPS core without SmartMIPS core. If 2485 you don't know you probably don't have SmartMIPS and should say N 2486 here. 2487 2488config CPU_MICROMIPS 2489 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2490 bool "microMIPS" 2491 help 2492 When this option is enabled the kernel will be built using the 2493 microMIPS ISA 2494 2495endchoice 2496 2497config CPU_HAS_MSA 2498 bool "Support for the MIPS SIMD Architecture" 2499 depends on CPU_SUPPORTS_MSA 2500 depends on MIPS_FP_SUPPORT 2501 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2502 help 2503 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2504 and a set of SIMD instructions to operate on them. When this option 2505 is enabled the kernel will support allocating & switching MSA 2506 vector register contexts. If you know that your kernel will only be 2507 running on CPUs which do not support MSA or that your userland will 2508 not be making use of it then you may wish to say N here to reduce 2509 the size & complexity of your kernel. 2510 2511 If unsure, say Y. 2512 2513config CPU_HAS_WB 2514 bool 2515 2516config XKS01 2517 bool 2518 2519config CPU_HAS_RIXI 2520 bool 2521 2522config CPU_HAS_LOAD_STORE_LR 2523 bool 2524 help 2525 CPU has support for unaligned load and store instructions: 2526 LWL, LWR, SWL, SWR (Load/store word left/right). 2527 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems). 2528 2529# 2530# Vectored interrupt mode is an R2 feature 2531# 2532config CPU_MIPSR2_IRQ_VI 2533 bool 2534 2535# 2536# Extended interrupt mode is an R2 feature 2537# 2538config CPU_MIPSR2_IRQ_EI 2539 bool 2540 2541config CPU_HAS_SYNC 2542 bool 2543 depends on !CPU_R3000 2544 default y 2545 2546# 2547# CPU non-features 2548# 2549config CPU_DADDI_WORKAROUNDS 2550 bool 2551 2552config CPU_R4000_WORKAROUNDS 2553 bool 2554 select CPU_R4400_WORKAROUNDS 2555 2556config CPU_R4400_WORKAROUNDS 2557 bool 2558 2559config MIPS_ASID_SHIFT 2560 int 2561 default 6 if CPU_R3000 || CPU_TX39XX 2562 default 4 if CPU_R8000 2563 default 0 2564 2565config MIPS_ASID_BITS 2566 int 2567 default 0 if MIPS_ASID_BITS_VARIABLE 2568 default 6 if CPU_R3000 || CPU_TX39XX 2569 default 8 2570 2571config MIPS_ASID_BITS_VARIABLE 2572 bool 2573 2574config MIPS_CRC_SUPPORT 2575 bool 2576 2577# 2578# - Highmem only makes sense for the 32-bit kernel. 2579# - The current highmem code will only work properly on physically indexed 2580# caches such as R3000, SB1, R7000 or those that look like they're virtually 2581# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2582# moment we protect the user and offer the highmem option only on machines 2583# where it's known to be safe. This will not offer highmem on a few systems 2584# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2585# indexed CPUs but we're playing safe. 2586# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2587# know they might have memory configurations that could make use of highmem 2588# support. 2589# 2590config HIGHMEM 2591 bool "High Memory Support" 2592 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2593 2594config CPU_SUPPORTS_HIGHMEM 2595 bool 2596 2597config SYS_SUPPORTS_HIGHMEM 2598 bool 2599 2600config SYS_SUPPORTS_SMARTMIPS 2601 bool 2602 2603config SYS_SUPPORTS_MICROMIPS 2604 bool 2605 2606config SYS_SUPPORTS_MIPS16 2607 bool 2608 help 2609 This option must be set if a kernel might be executed on a MIPS16- 2610 enabled CPU even if MIPS16 is not actually being used. In other 2611 words, it makes the kernel MIPS16-tolerant. 2612 2613config CPU_SUPPORTS_MSA 2614 bool 2615 2616config ARCH_FLATMEM_ENABLE 2617 def_bool y 2618 depends on !NUMA && !CPU_LOONGSON2 2619 2620config ARCH_DISCONTIGMEM_ENABLE 2621 bool 2622 default y if SGI_IP27 2623 help 2624 Say Y to support efficient handling of discontiguous physical memory, 2625 for architectures which are either NUMA (Non-Uniform Memory Access) 2626 or have huge holes in the physical address space for other reasons. 2627 See <file:Documentation/vm/numa.rst> for more. 2628 2629config ARCH_SPARSEMEM_ENABLE 2630 bool 2631 select SPARSEMEM_STATIC 2632 2633config NUMA 2634 bool "NUMA Support" 2635 depends on SYS_SUPPORTS_NUMA 2636 help 2637 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2638 Access). This option improves performance on systems with more 2639 than two nodes; on two node systems it is generally better to 2640 leave it disabled; on single node systems disable this option 2641 disabled. 2642 2643config SYS_SUPPORTS_NUMA 2644 bool 2645 2646config RELOCATABLE 2647 bool "Relocatable kernel" 2648 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC) 2649 help 2650 This builds a kernel image that retains relocation information 2651 so it can be loaded someplace besides the default 1MB. 2652 The relocations make the kernel binary about 15% larger, 2653 but are discarded at runtime 2654 2655config RELOCATION_TABLE_SIZE 2656 hex "Relocation table size" 2657 depends on RELOCATABLE 2658 range 0x0 0x01000000 2659 default "0x00100000" 2660 ---help--- 2661 A table of relocation data will be appended to the kernel binary 2662 and parsed at boot to fix up the relocated kernel. 2663 2664 This option allows the amount of space reserved for the table to be 2665 adjusted, although the default of 1Mb should be ok in most cases. 2666 2667 The build will fail and a valid size suggested if this is too small. 2668 2669 If unsure, leave at the default value. 2670 2671config RANDOMIZE_BASE 2672 bool "Randomize the address of the kernel image" 2673 depends on RELOCATABLE 2674 ---help--- 2675 Randomizes the physical and virtual address at which the 2676 kernel image is loaded, as a security feature that 2677 deters exploit attempts relying on knowledge of the location 2678 of kernel internals. 2679 2680 Entropy is generated using any coprocessor 0 registers available. 2681 2682 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2683 2684 If unsure, say N. 2685 2686config RANDOMIZE_BASE_MAX_OFFSET 2687 hex "Maximum kASLR offset" if EXPERT 2688 depends on RANDOMIZE_BASE 2689 range 0x0 0x40000000 if EVA || 64BIT 2690 range 0x0 0x08000000 2691 default "0x01000000" 2692 ---help--- 2693 When kASLR is active, this provides the maximum offset that will 2694 be applied to the kernel image. It should be set according to the 2695 amount of physical RAM available in the target system minus 2696 PHYSICAL_START and must be a power of 2. 2697 2698 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2699 EVA or 64-bit. The default is 16Mb. 2700 2701config NODES_SHIFT 2702 int 2703 default "6" 2704 depends on NEED_MULTIPLE_NODES 2705 2706config HW_PERF_EVENTS 2707 bool "Enable hardware performance counter support for perf events" 2708 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3) 2709 default y 2710 help 2711 Enable hardware performance counter support for perf events. If 2712 disabled, perf events will use software events only. 2713 2714config SMP 2715 bool "Multi-Processing support" 2716 depends on SYS_SUPPORTS_SMP 2717 help 2718 This enables support for systems with more than one CPU. If you have 2719 a system with only one CPU, say N. If you have a system with more 2720 than one CPU, say Y. 2721 2722 If you say N here, the kernel will run on uni- and multiprocessor 2723 machines, but will use only one CPU of a multiprocessor machine. If 2724 you say Y here, the kernel will run on many, but not all, 2725 uniprocessor machines. On a uniprocessor machine, the kernel 2726 will run faster if you say N here. 2727 2728 People using multiprocessor machines who say Y here should also say 2729 Y to "Enhanced Real Time Clock Support", below. 2730 2731 See also the SMP-HOWTO available at 2732 <http://www.tldp.org/docs.html#howto>. 2733 2734 If you don't know what to do here, say N. 2735 2736config HOTPLUG_CPU 2737 bool "Support for hot-pluggable CPUs" 2738 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 2739 help 2740 Say Y here to allow turning CPUs off and on. CPUs can be 2741 controlled through /sys/devices/system/cpu. 2742 (Note: power management support will enable this option 2743 automatically on SMP systems. ) 2744 Say N if you want to disable CPU hotplug. 2745 2746config SMP_UP 2747 bool 2748 2749config SYS_SUPPORTS_MIPS_CMP 2750 bool 2751 2752config SYS_SUPPORTS_MIPS_CPS 2753 bool 2754 2755config SYS_SUPPORTS_SMP 2756 bool 2757 2758config NR_CPUS_DEFAULT_4 2759 bool 2760 2761config NR_CPUS_DEFAULT_8 2762 bool 2763 2764config NR_CPUS_DEFAULT_16 2765 bool 2766 2767config NR_CPUS_DEFAULT_32 2768 bool 2769 2770config NR_CPUS_DEFAULT_64 2771 bool 2772 2773config NR_CPUS 2774 int "Maximum number of CPUs (2-256)" 2775 range 2 256 2776 depends on SMP 2777 default "4" if NR_CPUS_DEFAULT_4 2778 default "8" if NR_CPUS_DEFAULT_8 2779 default "16" if NR_CPUS_DEFAULT_16 2780 default "32" if NR_CPUS_DEFAULT_32 2781 default "64" if NR_CPUS_DEFAULT_64 2782 help 2783 This allows you to specify the maximum number of CPUs which this 2784 kernel will support. The maximum supported value is 32 for 32-bit 2785 kernel and 64 for 64-bit kernels; the minimum value which makes 2786 sense is 1 for Qemu (useful only for kernel debugging purposes) 2787 and 2 for all others. 2788 2789 This is purely to save memory - each supported CPU adds 2790 approximately eight kilobytes to the kernel image. For best 2791 performance should round up your number of processors to the next 2792 power of two. 2793 2794config MIPS_PERF_SHARED_TC_COUNTERS 2795 bool 2796 2797config MIPS_NR_CPU_NR_MAP_1024 2798 bool 2799 2800config MIPS_NR_CPU_NR_MAP 2801 int 2802 depends on SMP 2803 default 1024 if MIPS_NR_CPU_NR_MAP_1024 2804 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024 2805 2806# 2807# Timer Interrupt Frequency Configuration 2808# 2809 2810choice 2811 prompt "Timer frequency" 2812 default HZ_250 2813 help 2814 Allows the configuration of the timer frequency. 2815 2816 config HZ_24 2817 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2818 2819 config HZ_48 2820 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2821 2822 config HZ_100 2823 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2824 2825 config HZ_128 2826 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2827 2828 config HZ_250 2829 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2830 2831 config HZ_256 2832 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2833 2834 config HZ_1000 2835 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2836 2837 config HZ_1024 2838 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2839 2840endchoice 2841 2842config SYS_SUPPORTS_24HZ 2843 bool 2844 2845config SYS_SUPPORTS_48HZ 2846 bool 2847 2848config SYS_SUPPORTS_100HZ 2849 bool 2850 2851config SYS_SUPPORTS_128HZ 2852 bool 2853 2854config SYS_SUPPORTS_250HZ 2855 bool 2856 2857config SYS_SUPPORTS_256HZ 2858 bool 2859 2860config SYS_SUPPORTS_1000HZ 2861 bool 2862 2863config SYS_SUPPORTS_1024HZ 2864 bool 2865 2866config SYS_SUPPORTS_ARBIT_HZ 2867 bool 2868 default y if !SYS_SUPPORTS_24HZ && \ 2869 !SYS_SUPPORTS_48HZ && \ 2870 !SYS_SUPPORTS_100HZ && \ 2871 !SYS_SUPPORTS_128HZ && \ 2872 !SYS_SUPPORTS_250HZ && \ 2873 !SYS_SUPPORTS_256HZ && \ 2874 !SYS_SUPPORTS_1000HZ && \ 2875 !SYS_SUPPORTS_1024HZ 2876 2877config HZ 2878 int 2879 default 24 if HZ_24 2880 default 48 if HZ_48 2881 default 100 if HZ_100 2882 default 128 if HZ_128 2883 default 250 if HZ_250 2884 default 256 if HZ_256 2885 default 1000 if HZ_1000 2886 default 1024 if HZ_1024 2887 2888config SCHED_HRTICK 2889 def_bool HIGH_RES_TIMERS 2890 2891config KEXEC 2892 bool "Kexec system call" 2893 select KEXEC_CORE 2894 help 2895 kexec is a system call that implements the ability to shutdown your 2896 current kernel, and to start another kernel. It is like a reboot 2897 but it is independent of the system firmware. And like a reboot 2898 you can start any kernel with it, not just Linux. 2899 2900 The name comes from the similarity to the exec system call. 2901 2902 It is an ongoing process to be certain the hardware in a machine 2903 is properly shutdown, so do not be surprised if this code does not 2904 initially work for you. As of this writing the exact hardware 2905 interface is strongly in flux, so no good recommendation can be 2906 made. 2907 2908config CRASH_DUMP 2909 bool "Kernel crash dumps" 2910 help 2911 Generate crash dump after being started by kexec. 2912 This should be normally only set in special crash dump kernels 2913 which are loaded in the main kernel with kexec-tools into 2914 a specially reserved region and then later executed after 2915 a crash by kdump/kexec. The crash dump kernel must be compiled 2916 to a memory address not used by the main kernel or firmware using 2917 PHYSICAL_START. 2918 2919config PHYSICAL_START 2920 hex "Physical address where the kernel is loaded" 2921 default "0xffffffff84000000" 2922 depends on CRASH_DUMP 2923 help 2924 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2925 If you plan to use kernel for capturing the crash dump change 2926 this value to start of the reserved region (the "X" value as 2927 specified in the "crashkernel=YM@XM" command line boot parameter 2928 passed to the panic-ed kernel). 2929 2930config SECCOMP 2931 bool "Enable seccomp to safely compute untrusted bytecode" 2932 depends on PROC_FS 2933 default y 2934 help 2935 This kernel feature is useful for number crunching applications 2936 that may need to compute untrusted bytecode during their 2937 execution. By using pipes or other transports made available to 2938 the process as file descriptors supporting the read/write 2939 syscalls, it's possible to isolate those applications in 2940 their own address space using seccomp. Once seccomp is 2941 enabled via /proc/<pid>/seccomp, it cannot be disabled 2942 and the task is only allowed to execute a few safe syscalls 2943 defined by each seccomp mode. 2944 2945 If unsure, say Y. Only embedded should say N here. 2946 2947config MIPS_O32_FP64_SUPPORT 2948 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6 2949 depends on 32BIT || MIPS32_O32 2950 help 2951 When this is enabled, the kernel will support use of 64-bit floating 2952 point registers with binaries using the O32 ABI along with the 2953 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 2954 32-bit MIPS systems this support is at the cost of increasing the 2955 size and complexity of the compiled FPU emulator. Thus if you are 2956 running a MIPS32 system and know that none of your userland binaries 2957 will require 64-bit floating point, you may wish to reduce the size 2958 of your kernel & potentially improve FP emulation performance by 2959 saying N here. 2960 2961 Although binutils currently supports use of this flag the details 2962 concerning its effect upon the O32 ABI in userland are still being 2963 worked on. In order to avoid userland becoming dependant upon current 2964 behaviour before the details have been finalised, this option should 2965 be considered experimental and only enabled by those working upon 2966 said details. 2967 2968 If unsure, say N. 2969 2970config USE_OF 2971 bool 2972 select OF 2973 select OF_EARLY_FLATTREE 2974 select IRQ_DOMAIN 2975 2976config UHI_BOOT 2977 bool 2978 2979config BUILTIN_DTB 2980 bool 2981 2982choice 2983 prompt "Kernel appended dtb support" if USE_OF 2984 default MIPS_NO_APPENDED_DTB 2985 2986 config MIPS_NO_APPENDED_DTB 2987 bool "None" 2988 help 2989 Do not enable appended dtb support. 2990 2991 config MIPS_ELF_APPENDED_DTB 2992 bool "vmlinux" 2993 help 2994 With this option, the boot code will look for a device tree binary 2995 DTB) included in the vmlinux ELF section .appended_dtb. By default 2996 it is empty and the DTB can be appended using binutils command 2997 objcopy: 2998 2999 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 3000 3001 This is meant as a backward compatiblity convenience for those 3002 systems with a bootloader that can't be upgraded to accommodate 3003 the documented boot protocol using a device tree. 3004 3005 config MIPS_RAW_APPENDED_DTB 3006 bool "vmlinux.bin or vmlinuz.bin" 3007 help 3008 With this option, the boot code will look for a device tree binary 3009 DTB) appended to raw vmlinux.bin or vmlinuz.bin. 3010 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 3011 3012 This is meant as a backward compatibility convenience for those 3013 systems with a bootloader that can't be upgraded to accommodate 3014 the documented boot protocol using a device tree. 3015 3016 Beware that there is very little in terms of protection against 3017 this option being confused by leftover garbage in memory that might 3018 look like a DTB header after a reboot if no actual DTB is appended 3019 to vmlinux.bin. Do not leave this option active in a production kernel 3020 if you don't intend to always append a DTB. 3021endchoice 3022 3023choice 3024 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 3025 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 3026 !MIPS_MALTA && \ 3027 !CAVIUM_OCTEON_SOC 3028 default MIPS_CMDLINE_FROM_BOOTLOADER 3029 3030 config MIPS_CMDLINE_FROM_DTB 3031 depends on USE_OF 3032 bool "Dtb kernel arguments if available" 3033 3034 config MIPS_CMDLINE_DTB_EXTEND 3035 depends on USE_OF 3036 bool "Extend dtb kernel arguments with bootloader arguments" 3037 3038 config MIPS_CMDLINE_FROM_BOOTLOADER 3039 bool "Bootloader kernel arguments if available" 3040 3041 config MIPS_CMDLINE_BUILTIN_EXTEND 3042 depends on CMDLINE_BOOL 3043 bool "Extend builtin kernel arguments with bootloader arguments" 3044endchoice 3045 3046endmenu 3047 3048config LOCKDEP_SUPPORT 3049 bool 3050 default y 3051 3052config STACKTRACE_SUPPORT 3053 bool 3054 default y 3055 3056config HAVE_LATENCYTOP_SUPPORT 3057 bool 3058 default y 3059 3060config PGTABLE_LEVELS 3061 int 3062 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48 3063 default 3 if 64BIT && !PAGE_SIZE_64KB 3064 default 2 3065 3066config MIPS_AUTO_PFN_OFFSET 3067 bool 3068 3069menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 3070 3071config PCI_DRIVERS_GENERIC 3072 select PCI_DOMAINS_GENERIC if PCI 3073 bool 3074 3075config PCI_DRIVERS_LEGACY 3076 def_bool !PCI_DRIVERS_GENERIC 3077 select NO_GENERIC_PCI_IOPORT_MAP 3078 select PCI_DOMAINS if PCI 3079 3080# 3081# ISA support is now enabled via select. Too many systems still have the one 3082# or other ISA chip on the board that users don't know about so don't expect 3083# users to choose the right thing ... 3084# 3085config ISA 3086 bool 3087 3088config TC 3089 bool "TURBOchannel support" 3090 depends on MACH_DECSTATION 3091 help 3092 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3093 processors. TURBOchannel programming specifications are available 3094 at: 3095 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3096 and: 3097 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3098 Linux driver support status is documented at: 3099 <http://www.linux-mips.org/wiki/DECstation> 3100 3101config MMU 3102 bool 3103 default y 3104 3105config ARCH_MMAP_RND_BITS_MIN 3106 default 12 if 64BIT 3107 default 8 3108 3109config ARCH_MMAP_RND_BITS_MAX 3110 default 18 if 64BIT 3111 default 15 3112 3113config ARCH_MMAP_RND_COMPAT_BITS_MIN 3114 default 8 3115 3116config ARCH_MMAP_RND_COMPAT_BITS_MAX 3117 default 15 3118 3119config I8253 3120 bool 3121 select CLKSRC_I8253 3122 select CLKEVT_I8253 3123 select MIPS_EXTERNAL_TIMER 3124 3125config ZONE_DMA 3126 bool 3127 3128config ZONE_DMA32 3129 bool 3130 3131endmenu 3132 3133config TRAD_SIGNALS 3134 bool 3135 3136config MIPS32_COMPAT 3137 bool 3138 3139config COMPAT 3140 bool 3141 3142config SYSVIPC_COMPAT 3143 bool 3144 3145config MIPS32_O32 3146 bool "Kernel support for o32 binaries" 3147 depends on 64BIT 3148 select ARCH_WANT_OLD_COMPAT_IPC 3149 select COMPAT 3150 select MIPS32_COMPAT 3151 select SYSVIPC_COMPAT if SYSVIPC 3152 help 3153 Select this option if you want to run o32 binaries. These are pure 3154 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3155 existing binaries are in this format. 3156 3157 If unsure, say Y. 3158 3159config MIPS32_N32 3160 bool "Kernel support for n32 binaries" 3161 depends on 64BIT 3162 select COMPAT 3163 select MIPS32_COMPAT 3164 select SYSVIPC_COMPAT if SYSVIPC 3165 help 3166 Select this option if you want to run n32 binaries. These are 3167 64-bit binaries using 32-bit quantities for addressing and certain 3168 data that would normally be 64-bit. They are used in special 3169 cases. 3170 3171 If unsure, say N. 3172 3173config BINFMT_ELF32 3174 bool 3175 default y if MIPS32_O32 || MIPS32_N32 3176 select ELFCORE 3177 3178menu "Power management options" 3179 3180config ARCH_HIBERNATION_POSSIBLE 3181 def_bool y 3182 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3183 3184config ARCH_SUSPEND_POSSIBLE 3185 def_bool y 3186 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3187 3188source "kernel/power/Kconfig" 3189 3190endmenu 3191 3192config MIPS_EXTERNAL_TIMER 3193 bool 3194 3195menu "CPU Power Management" 3196 3197if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3198source "drivers/cpufreq/Kconfig" 3199endif 3200 3201source "drivers/cpuidle/Kconfig" 3202 3203endmenu 3204 3205source "drivers/firmware/Kconfig" 3206 3207source "arch/mips/kvm/Kconfig" 3208