1# SPDX-License-Identifier: GPL-2.0 2config MIPS 3 bool 4 default y 5 select ARCH_BINFMT_ELF_STATE 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_SUPPORTS_UPROBES 11 select ARCH_USE_BUILTIN_BSWAP 12 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT 13 select ARCH_USE_QUEUED_RWLOCKS 14 select ARCH_USE_QUEUED_SPINLOCKS 15 select ARCH_WANT_IPC_PARSE_VERSION 16 select BUILDTIME_EXTABLE_SORT 17 select CLONE_BACKWARDS 18 select CPU_PM if CPU_IDLE 19 select DMA_DIRECT_OPS 20 select GENERIC_ATOMIC64 if !64BIT 21 select GENERIC_CLOCKEVENTS 22 select GENERIC_CMOS_UPDATE 23 select GENERIC_CPU_AUTOPROBE 24 select GENERIC_IOMAP 25 select GENERIC_IRQ_PROBE 26 select GENERIC_IRQ_SHOW 27 select GENERIC_LIB_ASHLDI3 28 select GENERIC_LIB_ASHRDI3 29 select GENERIC_LIB_CMPDI2 30 select GENERIC_LIB_LSHRDI3 31 select GENERIC_LIB_UCMPDI2 32 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC 33 select GENERIC_SMP_IDLE_THREAD 34 select GENERIC_TIME_VSYSCALL 35 select HANDLE_DOMAIN_IRQ 36 select HAVE_ARCH_COMPILER_H 37 select HAVE_ARCH_JUMP_LABEL 38 select HAVE_ARCH_KGDB 39 select HAVE_ARCH_MMAP_RND_BITS if MMU 40 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT 41 select HAVE_ARCH_SECCOMP_FILTER 42 select HAVE_ARCH_TRACEHOOK 43 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT 44 select HAVE_CBPF_JIT if (!64BIT && !CPU_MICROMIPS) 45 select HAVE_EBPF_JIT if (64BIT && !CPU_MICROMIPS) 46 select HAVE_CONTEXT_TRACKING 47 select HAVE_COPY_THREAD_TLS 48 select HAVE_C_RECORDMCOUNT 49 select HAVE_DEBUG_KMEMLEAK 50 select HAVE_DEBUG_STACKOVERFLOW 51 select HAVE_DMA_CONTIGUOUS 52 select HAVE_DYNAMIC_FTRACE 53 select HAVE_EXIT_THREAD 54 select HAVE_FTRACE_MCOUNT_RECORD 55 select HAVE_FUNCTION_GRAPH_TRACER 56 select HAVE_FUNCTION_TRACER 57 select HAVE_GENERIC_DMA_COHERENT 58 select HAVE_IDE 59 select HAVE_IRQ_EXIT_ON_IRQ_STACK 60 select HAVE_IRQ_TIME_ACCOUNTING 61 select HAVE_KPROBES 62 select HAVE_KRETPROBES 63 select HAVE_MEMBLOCK 64 select HAVE_MEMBLOCK_NODE_MAP 65 select HAVE_MOD_ARCH_SPECIFIC 66 select HAVE_NMI 67 select HAVE_OPROFILE 68 select HAVE_PERF_EVENTS 69 select HAVE_REGS_AND_STACK_ACCESS_API 70 select HAVE_RSEQ 71 select HAVE_STACKPROTECTOR 72 select HAVE_SYSCALL_TRACEPOINTS 73 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP 74 select IRQ_FORCED_THREADING 75 select MODULES_USE_ELF_RELA if MODULES && 64BIT 76 select MODULES_USE_ELF_REL if MODULES 77 select PERF_USE_VMALLOC 78 select RTC_LIB if !MACH_LOONGSON64 79 select SYSCTL_EXCEPTION_TRACE 80 select VIRT_TO_BUS 81 select NO_BOOTMEM 82 83menu "Machine selection" 84 85choice 86 prompt "System type" 87 default MIPS_GENERIC 88 89config MIPS_GENERIC 90 bool "Generic board-agnostic MIPS kernel" 91 select BOOT_RAW 92 select BUILTIN_DTB 93 select CEVT_R4K 94 select CLKSRC_MIPS_GIC 95 select COMMON_CLK 96 select CPU_MIPSR2_IRQ_VI 97 select CPU_MIPSR2_IRQ_EI 98 select CSRC_R4K 99 select DMA_PERDEV_COHERENT 100 select HW_HAS_PCI 101 select IRQ_MIPS_CPU 102 select LIBFDT 103 select MIPS_AUTO_PFN_OFFSET 104 select MIPS_CPU_SCACHE 105 select MIPS_GIC 106 select MIPS_L1_CACHE_SHIFT_7 107 select NO_EXCEPT_FILL 108 select PCI_DRIVERS_GENERIC 109 select PINCTRL 110 select SMP_UP if SMP 111 select SWAP_IO_SPACE 112 select SYS_HAS_CPU_MIPS32_R1 113 select SYS_HAS_CPU_MIPS32_R2 114 select SYS_HAS_CPU_MIPS32_R6 115 select SYS_HAS_CPU_MIPS64_R1 116 select SYS_HAS_CPU_MIPS64_R2 117 select SYS_HAS_CPU_MIPS64_R6 118 select SYS_SUPPORTS_32BIT_KERNEL 119 select SYS_SUPPORTS_64BIT_KERNEL 120 select SYS_SUPPORTS_BIG_ENDIAN 121 select SYS_SUPPORTS_HIGHMEM 122 select SYS_SUPPORTS_LITTLE_ENDIAN 123 select SYS_SUPPORTS_MICROMIPS 124 select SYS_SUPPORTS_MIPS_CPS 125 select SYS_SUPPORTS_MIPS16 126 select SYS_SUPPORTS_MULTITHREADING 127 select SYS_SUPPORTS_RELOCATABLE 128 select SYS_SUPPORTS_SMARTMIPS 129 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 130 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 131 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 132 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 133 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 134 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 135 select USE_OF 136 select UHI_BOOT 137 help 138 Select this to build a kernel which aims to support multiple boards, 139 generally using a flattened device tree passed from the bootloader 140 using the boot protocol defined in the UHI (Unified Hosting 141 Interface) specification. 142 143config MIPS_ALCHEMY 144 bool "Alchemy processor based machines" 145 select PHYS_ADDR_T_64BIT 146 select CEVT_R4K 147 select CSRC_R4K 148 select IRQ_MIPS_CPU 149 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is 150 select SYS_HAS_CPU_MIPS32_R1 151 select SYS_SUPPORTS_32BIT_KERNEL 152 select SYS_SUPPORTS_APM_EMULATION 153 select GPIOLIB 154 select SYS_SUPPORTS_ZBOOT 155 select COMMON_CLK 156 157config AR7 158 bool "Texas Instruments AR7" 159 select BOOT_ELF32 160 select DMA_NONCOHERENT 161 select CEVT_R4K 162 select CSRC_R4K 163 select IRQ_MIPS_CPU 164 select NO_EXCEPT_FILL 165 select SWAP_IO_SPACE 166 select SYS_HAS_CPU_MIPS32_R1 167 select SYS_HAS_EARLY_PRINTK 168 select SYS_SUPPORTS_32BIT_KERNEL 169 select SYS_SUPPORTS_LITTLE_ENDIAN 170 select SYS_SUPPORTS_MIPS16 171 select SYS_SUPPORTS_ZBOOT_UART16550 172 select GPIOLIB 173 select VLYNQ 174 select HAVE_CLK 175 help 176 Support for the Texas Instruments AR7 System-on-a-Chip 177 family: TNETD7100, 7200 and 7300. 178 179config ATH25 180 bool "Atheros AR231x/AR531x SoC support" 181 select CEVT_R4K 182 select CSRC_R4K 183 select DMA_NONCOHERENT 184 select IRQ_MIPS_CPU 185 select IRQ_DOMAIN 186 select SYS_HAS_CPU_MIPS32_R1 187 select SYS_SUPPORTS_BIG_ENDIAN 188 select SYS_SUPPORTS_32BIT_KERNEL 189 select SYS_HAS_EARLY_PRINTK 190 help 191 Support for Atheros AR231x and Atheros AR531x based boards 192 193config ATH79 194 bool "Atheros AR71XX/AR724X/AR913X based boards" 195 select ARCH_HAS_RESET_CONTROLLER 196 select BOOT_RAW 197 select CEVT_R4K 198 select CSRC_R4K 199 select DMA_NONCOHERENT 200 select GPIOLIB 201 select PINCTRL 202 select HAVE_CLK 203 select COMMON_CLK 204 select CLKDEV_LOOKUP 205 select IRQ_MIPS_CPU 206 select MIPS_MACHINE 207 select SYS_HAS_CPU_MIPS32_R2 208 select SYS_HAS_EARLY_PRINTK 209 select SYS_SUPPORTS_32BIT_KERNEL 210 select SYS_SUPPORTS_BIG_ENDIAN 211 select SYS_SUPPORTS_MIPS16 212 select SYS_SUPPORTS_ZBOOT_UART_PROM 213 select USE_OF 214 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM 215 help 216 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 217 218config BMIPS_GENERIC 219 bool "Broadcom Generic BMIPS kernel" 220 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL 221 select ARCH_HAS_PHYS_TO_DMA 222 select BOOT_RAW 223 select NO_EXCEPT_FILL 224 select USE_OF 225 select CEVT_R4K 226 select CSRC_R4K 227 select SYNC_R4K 228 select COMMON_CLK 229 select BCM6345_L1_IRQ 230 select BCM7038_L1_IRQ 231 select BCM7120_L2_IRQ 232 select BRCMSTB_L2_IRQ 233 select IRQ_MIPS_CPU 234 select DMA_NONCOHERENT 235 select SYS_SUPPORTS_32BIT_KERNEL 236 select SYS_SUPPORTS_LITTLE_ENDIAN 237 select SYS_SUPPORTS_BIG_ENDIAN 238 select SYS_SUPPORTS_HIGHMEM 239 select SYS_HAS_CPU_BMIPS32_3300 240 select SYS_HAS_CPU_BMIPS4350 241 select SYS_HAS_CPU_BMIPS4380 242 select SYS_HAS_CPU_BMIPS5000 243 select SWAP_IO_SPACE 244 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 245 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 246 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 247 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 248 select HARDIRQS_SW_RESEND 249 help 250 Build a generic DT-based kernel image that boots on select 251 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top 252 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN 253 must be set appropriately for your board. 254 255config BCM47XX 256 bool "Broadcom BCM47XX based boards" 257 select BOOT_RAW 258 select CEVT_R4K 259 select CSRC_R4K 260 select DMA_NONCOHERENT 261 select HW_HAS_PCI 262 select IRQ_MIPS_CPU 263 select SYS_HAS_CPU_MIPS32_R1 264 select NO_EXCEPT_FILL 265 select SYS_SUPPORTS_32BIT_KERNEL 266 select SYS_SUPPORTS_LITTLE_ENDIAN 267 select SYS_SUPPORTS_MIPS16 268 select SYS_SUPPORTS_ZBOOT 269 select SYS_HAS_EARLY_PRINTK 270 select USE_GENERIC_EARLY_PRINTK_8250 271 select GPIOLIB 272 select LEDS_GPIO_REGISTER 273 select BCM47XX_NVRAM 274 select BCM47XX_SPROM 275 select BCM47XX_SSB if !BCM47XX_BCMA 276 help 277 Support for BCM47XX based boards 278 279config BCM63XX 280 bool "Broadcom BCM63XX based boards" 281 select BOOT_RAW 282 select CEVT_R4K 283 select CSRC_R4K 284 select SYNC_R4K 285 select DMA_NONCOHERENT 286 select IRQ_MIPS_CPU 287 select SYS_SUPPORTS_32BIT_KERNEL 288 select SYS_SUPPORTS_BIG_ENDIAN 289 select SYS_HAS_EARLY_PRINTK 290 select SWAP_IO_SPACE 291 select GPIOLIB 292 select HAVE_CLK 293 select MIPS_L1_CACHE_SHIFT_4 294 select CLKDEV_LOOKUP 295 help 296 Support for BCM63XX based boards 297 298config MIPS_COBALT 299 bool "Cobalt Server" 300 select CEVT_R4K 301 select CSRC_R4K 302 select CEVT_GT641XX 303 select DMA_NONCOHERENT 304 select HW_HAS_PCI 305 select I8253 306 select I8259 307 select IRQ_MIPS_CPU 308 select IRQ_GT641XX 309 select PCI_GT64XXX_PCI0 310 select PCI 311 select SYS_HAS_CPU_NEVADA 312 select SYS_HAS_EARLY_PRINTK 313 select SYS_SUPPORTS_32BIT_KERNEL 314 select SYS_SUPPORTS_64BIT_KERNEL 315 select SYS_SUPPORTS_LITTLE_ENDIAN 316 select USE_GENERIC_EARLY_PRINTK_8250 317 318config MACH_DECSTATION 319 bool "DECstations" 320 select BOOT_ELF32 321 select CEVT_DS1287 322 select CEVT_R4K if CPU_R4X00 323 select CSRC_IOASIC 324 select CSRC_R4K if CPU_R4X00 325 select CPU_DADDI_WORKAROUNDS if 64BIT 326 select CPU_R4000_WORKAROUNDS if 64BIT 327 select CPU_R4400_WORKAROUNDS if 64BIT 328 select DMA_NONCOHERENT 329 select NO_IOPORT_MAP 330 select IRQ_MIPS_CPU 331 select SYS_HAS_CPU_R3000 332 select SYS_HAS_CPU_R4X00 333 select SYS_SUPPORTS_32BIT_KERNEL 334 select SYS_SUPPORTS_64BIT_KERNEL 335 select SYS_SUPPORTS_LITTLE_ENDIAN 336 select SYS_SUPPORTS_128HZ 337 select SYS_SUPPORTS_256HZ 338 select SYS_SUPPORTS_1024HZ 339 select MIPS_L1_CACHE_SHIFT_4 340 help 341 This enables support for DEC's MIPS based workstations. For details 342 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 343 DECstation porting pages on <http://decstation.unix-ag.org/>. 344 345 If you have one of the following DECstation Models you definitely 346 want to choose R4xx0 for the CPU Type: 347 348 DECstation 5000/50 349 DECstation 5000/150 350 DECstation 5000/260 351 DECsystem 5900/260 352 353 otherwise choose R3000. 354 355config MACH_JAZZ 356 bool "Jazz family of machines" 357 select ARCH_MIGHT_HAVE_PC_PARPORT 358 select ARCH_MIGHT_HAVE_PC_SERIO 359 select FW_ARC 360 select FW_ARC32 361 select ARCH_MAY_HAVE_PC_FDC 362 select CEVT_R4K 363 select CSRC_R4K 364 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 365 select GENERIC_ISA_DMA 366 select HAVE_PCSPKR_PLATFORM 367 select IRQ_MIPS_CPU 368 select I8253 369 select I8259 370 select ISA 371 select SYS_HAS_CPU_R4X00 372 select SYS_SUPPORTS_32BIT_KERNEL 373 select SYS_SUPPORTS_64BIT_KERNEL 374 select SYS_SUPPORTS_100HZ 375 help 376 This a family of machines based on the MIPS R4030 chipset which was 377 used by several vendors to build RISC/os and Windows NT workstations. 378 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 379 Olivetti M700-10 workstations. 380 381config MACH_INGENIC 382 bool "Ingenic SoC based machines" 383 select SYS_SUPPORTS_32BIT_KERNEL 384 select SYS_SUPPORTS_LITTLE_ENDIAN 385 select SYS_SUPPORTS_ZBOOT_UART16550 386 select DMA_NONCOHERENT 387 select IRQ_MIPS_CPU 388 select PINCTRL 389 select GPIOLIB 390 select COMMON_CLK 391 select GENERIC_IRQ_CHIP 392 select BUILTIN_DTB 393 select USE_OF 394 select LIBFDT 395 396config LANTIQ 397 bool "Lantiq based platforms" 398 select DMA_NONCOHERENT 399 select IRQ_MIPS_CPU 400 select CEVT_R4K 401 select CSRC_R4K 402 select SYS_HAS_CPU_MIPS32_R1 403 select SYS_HAS_CPU_MIPS32_R2 404 select SYS_SUPPORTS_BIG_ENDIAN 405 select SYS_SUPPORTS_32BIT_KERNEL 406 select SYS_SUPPORTS_MIPS16 407 select SYS_SUPPORTS_MULTITHREADING 408 select SYS_SUPPORTS_VPE_LOADER 409 select SYS_HAS_EARLY_PRINTK 410 select GPIOLIB 411 select SWAP_IO_SPACE 412 select BOOT_RAW 413 select CLKDEV_LOOKUP 414 select USE_OF 415 select PINCTRL 416 select PINCTRL_LANTIQ 417 select ARCH_HAS_RESET_CONTROLLER 418 select RESET_CONTROLLER 419 420config LASAT 421 bool "LASAT Networks platforms" 422 select CEVT_R4K 423 select CRC32 424 select CSRC_R4K 425 select DMA_NONCOHERENT 426 select SYS_HAS_EARLY_PRINTK 427 select HW_HAS_PCI 428 select IRQ_MIPS_CPU 429 select PCI_GT64XXX_PCI0 430 select MIPS_NILE4 431 select R5000_CPU_SCACHE 432 select SYS_HAS_CPU_R5000 433 select SYS_SUPPORTS_32BIT_KERNEL 434 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 435 select SYS_SUPPORTS_LITTLE_ENDIAN 436 437config MACH_LOONGSON32 438 bool "Loongson-1 family of machines" 439 select SYS_SUPPORTS_ZBOOT 440 help 441 This enables support for the Loongson-1 family of machines. 442 443 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by 444 the Institute of Computing Technology (ICT), Chinese Academy of 445 Sciences (CAS). 446 447config MACH_LOONGSON64 448 bool "Loongson-2/3 family of machines" 449 select SYS_SUPPORTS_ZBOOT 450 help 451 This enables the support of Loongson-2/3 family of machines. 452 453 Loongson-2 is a family of single-core CPUs and Loongson-3 is a 454 family of multi-core CPUs. They are both 64-bit general-purpose 455 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute 456 of Computing Technology (ICT), Chinese Academy of Sciences (CAS) 457 in the People's Republic of China. The chief architect is Professor 458 Weiwu Hu. 459 460config MACH_PISTACHIO 461 bool "IMG Pistachio SoC based boards" 462 select BOOT_ELF32 463 select BOOT_RAW 464 select CEVT_R4K 465 select CLKSRC_MIPS_GIC 466 select COMMON_CLK 467 select CSRC_R4K 468 select DMA_NONCOHERENT 469 select GPIOLIB 470 select IRQ_MIPS_CPU 471 select LIBFDT 472 select MFD_SYSCON 473 select MIPS_CPU_SCACHE 474 select MIPS_GIC 475 select PINCTRL 476 select REGULATOR 477 select SYS_HAS_CPU_MIPS32_R2 478 select SYS_SUPPORTS_32BIT_KERNEL 479 select SYS_SUPPORTS_LITTLE_ENDIAN 480 select SYS_SUPPORTS_MIPS_CPS 481 select SYS_SUPPORTS_MULTITHREADING 482 select SYS_SUPPORTS_RELOCATABLE 483 select SYS_SUPPORTS_ZBOOT 484 select SYS_HAS_EARLY_PRINTK 485 select USE_GENERIC_EARLY_PRINTK_8250 486 select USE_OF 487 help 488 This enables support for the IMG Pistachio SoC platform. 489 490config MIPS_MALTA 491 bool "MIPS Malta board" 492 select ARCH_MAY_HAVE_PC_FDC 493 select ARCH_MIGHT_HAVE_PC_PARPORT 494 select ARCH_MIGHT_HAVE_PC_SERIO 495 select BOOT_ELF32 496 select BOOT_RAW 497 select BUILTIN_DTB 498 select CEVT_R4K 499 select CSRC_R4K 500 select CLKSRC_MIPS_GIC 501 select COMMON_CLK 502 select DMA_MAYBE_COHERENT 503 select GENERIC_ISA_DMA 504 select HAVE_PCSPKR_PLATFORM 505 select IRQ_MIPS_CPU 506 select MIPS_GIC 507 select HW_HAS_PCI 508 select I8253 509 select I8259 510 select MIPS_BONITO64 511 select MIPS_CPU_SCACHE 512 select MIPS_L1_CACHE_SHIFT_6 513 select PCI_GT64XXX_PCI0 514 select MIPS_MSC 515 select SMP_UP if SMP 516 select SWAP_IO_SPACE 517 select SYS_HAS_CPU_MIPS32_R1 518 select SYS_HAS_CPU_MIPS32_R2 519 select SYS_HAS_CPU_MIPS32_R3_5 520 select SYS_HAS_CPU_MIPS32_R5 521 select SYS_HAS_CPU_MIPS32_R6 522 select SYS_HAS_CPU_MIPS64_R1 523 select SYS_HAS_CPU_MIPS64_R2 524 select SYS_HAS_CPU_MIPS64_R6 525 select SYS_HAS_CPU_NEVADA 526 select SYS_HAS_CPU_RM7000 527 select SYS_SUPPORTS_32BIT_KERNEL 528 select SYS_SUPPORTS_64BIT_KERNEL 529 select SYS_SUPPORTS_BIG_ENDIAN 530 select SYS_SUPPORTS_HIGHMEM 531 select SYS_SUPPORTS_LITTLE_ENDIAN 532 select SYS_SUPPORTS_MICROMIPS 533 select SYS_SUPPORTS_MIPS_CMP 534 select SYS_SUPPORTS_MIPS_CPS 535 select SYS_SUPPORTS_MIPS16 536 select SYS_SUPPORTS_MULTITHREADING 537 select SYS_SUPPORTS_SMARTMIPS 538 select SYS_SUPPORTS_VPE_LOADER 539 select SYS_SUPPORTS_ZBOOT 540 select SYS_SUPPORTS_RELOCATABLE 541 select USE_OF 542 select LIBFDT 543 select ZONE_DMA32 if 64BIT 544 select BUILTIN_DTB 545 select LIBFDT 546 help 547 This enables support for the MIPS Technologies Malta evaluation 548 board. 549 550config MACH_PIC32 551 bool "Microchip PIC32 Family" 552 help 553 This enables support for the Microchip PIC32 family of platforms. 554 555 Microchip PIC32 is a family of general-purpose 32 bit MIPS core 556 microcontrollers. 557 558config NEC_MARKEINS 559 bool "NEC EMMA2RH Mark-eins board" 560 select SOC_EMMA2RH 561 select HW_HAS_PCI 562 help 563 This enables support for the NEC Electronics Mark-eins boards. 564 565config MACH_VR41XX 566 bool "NEC VR4100 series based machines" 567 select CEVT_R4K 568 select CSRC_R4K 569 select SYS_HAS_CPU_VR41XX 570 select SYS_SUPPORTS_MIPS16 571 select GPIOLIB 572 573config NXP_STB220 574 bool "NXP STB220 board" 575 select SOC_PNX833X 576 help 577 Support for NXP Semiconductors STB220 Development Board. 578 579config NXP_STB225 580 bool "NXP 225 board" 581 select SOC_PNX833X 582 select SOC_PNX8335 583 help 584 Support for NXP Semiconductors STB225 Development Board. 585 586config PMC_MSP 587 bool "PMC-Sierra MSP chipsets" 588 select CEVT_R4K 589 select CSRC_R4K 590 select DMA_NONCOHERENT 591 select SWAP_IO_SPACE 592 select NO_EXCEPT_FILL 593 select BOOT_RAW 594 select SYS_HAS_CPU_MIPS32_R1 595 select SYS_HAS_CPU_MIPS32_R2 596 select SYS_SUPPORTS_32BIT_KERNEL 597 select SYS_SUPPORTS_BIG_ENDIAN 598 select SYS_SUPPORTS_MIPS16 599 select IRQ_MIPS_CPU 600 select SERIAL_8250 601 select SERIAL_8250_CONSOLE 602 select USB_EHCI_BIG_ENDIAN_MMIO 603 select USB_EHCI_BIG_ENDIAN_DESC 604 help 605 This adds support for the PMC-Sierra family of Multi-Service 606 Processor System-On-A-Chips. These parts include a number 607 of integrated peripherals, interfaces and DSPs in addition to 608 a variety of MIPS cores. 609 610config RALINK 611 bool "Ralink based machines" 612 select CEVT_R4K 613 select CSRC_R4K 614 select BOOT_RAW 615 select DMA_NONCOHERENT 616 select IRQ_MIPS_CPU 617 select USE_OF 618 select SYS_HAS_CPU_MIPS32_R1 619 select SYS_HAS_CPU_MIPS32_R2 620 select SYS_SUPPORTS_32BIT_KERNEL 621 select SYS_SUPPORTS_LITTLE_ENDIAN 622 select SYS_SUPPORTS_MIPS16 623 select SYS_HAS_EARLY_PRINTK 624 select CLKDEV_LOOKUP 625 select ARCH_HAS_RESET_CONTROLLER 626 select RESET_CONTROLLER 627 628config SGI_IP22 629 bool "SGI IP22 (Indy/Indigo2)" 630 select FW_ARC 631 select FW_ARC32 632 select ARCH_MIGHT_HAVE_PC_SERIO 633 select BOOT_ELF32 634 select CEVT_R4K 635 select CSRC_R4K 636 select DEFAULT_SGI_PARTITION 637 select DMA_NONCOHERENT 638 select HW_HAS_EISA 639 select I8253 640 select I8259 641 select IP22_CPU_SCACHE 642 select IRQ_MIPS_CPU 643 select GENERIC_ISA_DMA_SUPPORT_BROKEN 644 select SGI_HAS_I8042 645 select SGI_HAS_INDYDOG 646 select SGI_HAS_HAL2 647 select SGI_HAS_SEEQ 648 select SGI_HAS_WD93 649 select SGI_HAS_ZILOG 650 select SWAP_IO_SPACE 651 select SYS_HAS_CPU_R4X00 652 select SYS_HAS_CPU_R5000 653 # 654 # Disable EARLY_PRINTK for now since it leads to overwritten prom 655 # memory during early boot on some machines. 656 # 657 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 658 # for a more details discussion 659 # 660 # select SYS_HAS_EARLY_PRINTK 661 select SYS_SUPPORTS_32BIT_KERNEL 662 select SYS_SUPPORTS_64BIT_KERNEL 663 select SYS_SUPPORTS_BIG_ENDIAN 664 select MIPS_L1_CACHE_SHIFT_7 665 help 666 This are the SGI Indy, Challenge S and Indigo2, as well as certain 667 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 668 that runs on these, say Y here. 669 670config SGI_IP27 671 bool "SGI IP27 (Origin200/2000)" 672 select ARCH_HAS_PHYS_TO_DMA 673 select FW_ARC 674 select FW_ARC64 675 select BOOT_ELF64 676 select DEFAULT_SGI_PARTITION 677 select SYS_HAS_EARLY_PRINTK 678 select HW_HAS_PCI 679 select NR_CPUS_DEFAULT_64 680 select SYS_HAS_CPU_R10000 681 select SYS_SUPPORTS_64BIT_KERNEL 682 select SYS_SUPPORTS_BIG_ENDIAN 683 select SYS_SUPPORTS_NUMA 684 select SYS_SUPPORTS_SMP 685 select MIPS_L1_CACHE_SHIFT_7 686 help 687 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 688 workstations. To compile a Linux kernel that runs on these, say Y 689 here. 690 691config SGI_IP28 692 bool "SGI IP28 (Indigo2 R10k)" 693 select FW_ARC 694 select FW_ARC64 695 select ARCH_MIGHT_HAVE_PC_SERIO 696 select BOOT_ELF64 697 select CEVT_R4K 698 select CSRC_R4K 699 select DEFAULT_SGI_PARTITION 700 select DMA_NONCOHERENT 701 select GENERIC_ISA_DMA_SUPPORT_BROKEN 702 select IRQ_MIPS_CPU 703 select HW_HAS_EISA 704 select I8253 705 select I8259 706 select SGI_HAS_I8042 707 select SGI_HAS_INDYDOG 708 select SGI_HAS_HAL2 709 select SGI_HAS_SEEQ 710 select SGI_HAS_WD93 711 select SGI_HAS_ZILOG 712 select SWAP_IO_SPACE 713 select SYS_HAS_CPU_R10000 714 # 715 # Disable EARLY_PRINTK for now since it leads to overwritten prom 716 # memory during early boot on some machines. 717 # 718 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 719 # for a more details discussion 720 # 721 # select SYS_HAS_EARLY_PRINTK 722 select SYS_SUPPORTS_64BIT_KERNEL 723 select SYS_SUPPORTS_BIG_ENDIAN 724 select MIPS_L1_CACHE_SHIFT_7 725 help 726 This is the SGI Indigo2 with R10000 processor. To compile a Linux 727 kernel that runs on these, say Y here. 728 729config SGI_IP32 730 bool "SGI IP32 (O2)" 731 select ARCH_HAS_PHYS_TO_DMA 732 select FW_ARC 733 select FW_ARC32 734 select BOOT_ELF32 735 select CEVT_R4K 736 select CSRC_R4K 737 select DMA_NONCOHERENT 738 select HW_HAS_PCI 739 select IRQ_MIPS_CPU 740 select R5000_CPU_SCACHE 741 select RM7000_CPU_SCACHE 742 select SYS_HAS_CPU_R5000 743 select SYS_HAS_CPU_R10000 if BROKEN 744 select SYS_HAS_CPU_RM7000 745 select SYS_HAS_CPU_NEVADA 746 select SYS_SUPPORTS_64BIT_KERNEL 747 select SYS_SUPPORTS_BIG_ENDIAN 748 help 749 If you want this kernel to run on SGI O2 workstation, say Y here. 750 751config SIBYTE_CRHINE 752 bool "Sibyte BCM91120C-CRhine" 753 select BOOT_ELF32 754 select SIBYTE_BCM1120 755 select SWAP_IO_SPACE 756 select SYS_HAS_CPU_SB1 757 select SYS_SUPPORTS_BIG_ENDIAN 758 select SYS_SUPPORTS_LITTLE_ENDIAN 759 760config SIBYTE_CARMEL 761 bool "Sibyte BCM91120x-Carmel" 762 select BOOT_ELF32 763 select SIBYTE_BCM1120 764 select SWAP_IO_SPACE 765 select SYS_HAS_CPU_SB1 766 select SYS_SUPPORTS_BIG_ENDIAN 767 select SYS_SUPPORTS_LITTLE_ENDIAN 768 769config SIBYTE_CRHONE 770 bool "Sibyte BCM91125C-CRhone" 771 select BOOT_ELF32 772 select SIBYTE_BCM1125 773 select SWAP_IO_SPACE 774 select SYS_HAS_CPU_SB1 775 select SYS_SUPPORTS_BIG_ENDIAN 776 select SYS_SUPPORTS_HIGHMEM 777 select SYS_SUPPORTS_LITTLE_ENDIAN 778 779config SIBYTE_RHONE 780 bool "Sibyte BCM91125E-Rhone" 781 select BOOT_ELF32 782 select SIBYTE_BCM1125H 783 select SWAP_IO_SPACE 784 select SYS_HAS_CPU_SB1 785 select SYS_SUPPORTS_BIG_ENDIAN 786 select SYS_SUPPORTS_LITTLE_ENDIAN 787 788config SIBYTE_SWARM 789 bool "Sibyte BCM91250A-SWARM" 790 select BOOT_ELF32 791 select HAVE_PATA_PLATFORM 792 select SIBYTE_SB1250 793 select SWAP_IO_SPACE 794 select SYS_HAS_CPU_SB1 795 select SYS_SUPPORTS_BIG_ENDIAN 796 select SYS_SUPPORTS_HIGHMEM 797 select SYS_SUPPORTS_LITTLE_ENDIAN 798 select ZONE_DMA32 if 64BIT 799 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 811config SIBYTE_SENTOSA 812 bool "Sibyte BCM91250E-Sentosa" 813 select BOOT_ELF32 814 select SIBYTE_SB1250 815 select SWAP_IO_SPACE 816 select SYS_HAS_CPU_SB1 817 select SYS_SUPPORTS_BIG_ENDIAN 818 select SYS_SUPPORTS_LITTLE_ENDIAN 819 820config SIBYTE_BIGSUR 821 bool "Sibyte BCM91480B-BigSur" 822 select BOOT_ELF32 823 select NR_CPUS_DEFAULT_4 824 select SIBYTE_BCM1x80 825 select SWAP_IO_SPACE 826 select SYS_HAS_CPU_SB1 827 select SYS_SUPPORTS_BIG_ENDIAN 828 select SYS_SUPPORTS_HIGHMEM 829 select SYS_SUPPORTS_LITTLE_ENDIAN 830 select ZONE_DMA32 if 64BIT 831 832config SNI_RM 833 bool "SNI RM200/300/400" 834 select FW_ARC if CPU_LITTLE_ENDIAN 835 select FW_ARC32 if CPU_LITTLE_ENDIAN 836 select FW_SNIPROM if CPU_BIG_ENDIAN 837 select ARCH_MAY_HAVE_PC_FDC 838 select ARCH_MIGHT_HAVE_PC_PARPORT 839 select ARCH_MIGHT_HAVE_PC_SERIO 840 select BOOT_ELF32 841 select CEVT_R4K 842 select CSRC_R4K 843 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 844 select DMA_NONCOHERENT 845 select GENERIC_ISA_DMA 846 select HAVE_PCSPKR_PLATFORM 847 select HW_HAS_EISA 848 select HW_HAS_PCI 849 select IRQ_MIPS_CPU 850 select I8253 851 select I8259 852 select ISA 853 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 854 select SYS_HAS_CPU_R4X00 855 select SYS_HAS_CPU_R5000 856 select SYS_HAS_CPU_R10000 857 select R5000_CPU_SCACHE 858 select SYS_HAS_EARLY_PRINTK 859 select SYS_SUPPORTS_32BIT_KERNEL 860 select SYS_SUPPORTS_64BIT_KERNEL 861 select SYS_SUPPORTS_BIG_ENDIAN 862 select SYS_SUPPORTS_HIGHMEM 863 select SYS_SUPPORTS_LITTLE_ENDIAN 864 help 865 The SNI RM200/300/400 are MIPS-based machines manufactured by 866 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 867 Technology and now in turn merged with Fujitsu. Say Y here to 868 support this machine type. 869 870config MACH_TX39XX 871 bool "Toshiba TX39 series based machines" 872 873config MACH_TX49XX 874 bool "Toshiba TX49 series based machines" 875 876config MIKROTIK_RB532 877 bool "Mikrotik RB532 boards" 878 select CEVT_R4K 879 select CSRC_R4K 880 select DMA_NONCOHERENT 881 select HW_HAS_PCI 882 select IRQ_MIPS_CPU 883 select SYS_HAS_CPU_MIPS32_R1 884 select SYS_SUPPORTS_32BIT_KERNEL 885 select SYS_SUPPORTS_LITTLE_ENDIAN 886 select SWAP_IO_SPACE 887 select BOOT_RAW 888 select GPIOLIB 889 select MIPS_L1_CACHE_SHIFT_4 890 help 891 Support the Mikrotik(tm) RouterBoard 532 series, 892 based on the IDT RC32434 SoC. 893 894config CAVIUM_OCTEON_SOC 895 bool "Cavium Networks Octeon SoC based boards" 896 select CEVT_R4K 897 select ARCH_HAS_PHYS_TO_DMA 898 select HAS_RAPIDIO 899 select PHYS_ADDR_T_64BIT 900 select SYS_SUPPORTS_64BIT_KERNEL 901 select SYS_SUPPORTS_BIG_ENDIAN 902 select EDAC_SUPPORT 903 select EDAC_ATOMIC_SCRUB 904 select SYS_SUPPORTS_LITTLE_ENDIAN 905 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN 906 select SYS_HAS_EARLY_PRINTK 907 select SYS_HAS_CPU_CAVIUM_OCTEON 908 select HW_HAS_PCI 909 select ZONE_DMA32 910 select HOLES_IN_ZONE 911 select GPIOLIB 912 select LIBFDT 913 select USE_OF 914 select ARCH_SPARSEMEM_ENABLE 915 select SYS_SUPPORTS_SMP 916 select NR_CPUS_DEFAULT_64 917 select MIPS_NR_CPU_NR_MAP_1024 918 select BUILTIN_DTB 919 select MTD_COMPLEX_MAPPINGS 920 select SWIOTLB 921 select SYS_SUPPORTS_RELOCATABLE 922 help 923 This option supports all of the Octeon reference boards from Cavium 924 Networks. It builds a kernel that dynamically determines the Octeon 925 CPU type and supports all known board reference implementations. 926 Some of the supported boards are: 927 EBT3000 928 EBH3000 929 EBH3100 930 Thunder 931 Kodama 932 Hikari 933 Say Y here for most Octeon reference boards. 934 935config NLM_XLR_BOARD 936 bool "Netlogic XLR/XLS based systems" 937 select BOOT_ELF32 938 select NLM_COMMON 939 select SYS_HAS_CPU_XLR 940 select SYS_SUPPORTS_SMP 941 select HW_HAS_PCI 942 select SWAP_IO_SPACE 943 select SYS_SUPPORTS_32BIT_KERNEL 944 select SYS_SUPPORTS_64BIT_KERNEL 945 select PHYS_ADDR_T_64BIT 946 select SYS_SUPPORTS_BIG_ENDIAN 947 select SYS_SUPPORTS_HIGHMEM 948 select NR_CPUS_DEFAULT_32 949 select CEVT_R4K 950 select CSRC_R4K 951 select IRQ_MIPS_CPU 952 select ZONE_DMA32 if 64BIT 953 select SYNC_R4K 954 select SYS_HAS_EARLY_PRINTK 955 select SYS_SUPPORTS_ZBOOT 956 select SYS_SUPPORTS_ZBOOT_UART16550 957 help 958 Support for systems based on Netlogic XLR and XLS processors. 959 Say Y here if you have a XLR or XLS based board. 960 961config NLM_XLP_BOARD 962 bool "Netlogic XLP based systems" 963 select BOOT_ELF32 964 select NLM_COMMON 965 select SYS_HAS_CPU_XLP 966 select SYS_SUPPORTS_SMP 967 select HW_HAS_PCI 968 select SYS_SUPPORTS_32BIT_KERNEL 969 select SYS_SUPPORTS_64BIT_KERNEL 970 select PHYS_ADDR_T_64BIT 971 select GPIOLIB 972 select SYS_SUPPORTS_BIG_ENDIAN 973 select SYS_SUPPORTS_LITTLE_ENDIAN 974 select SYS_SUPPORTS_HIGHMEM 975 select NR_CPUS_DEFAULT_32 976 select CEVT_R4K 977 select CSRC_R4K 978 select IRQ_MIPS_CPU 979 select ZONE_DMA32 if 64BIT 980 select SYNC_R4K 981 select SYS_HAS_EARLY_PRINTK 982 select USE_OF 983 select SYS_SUPPORTS_ZBOOT 984 select SYS_SUPPORTS_ZBOOT_UART16550 985 help 986 This board is based on Netlogic XLP Processor. 987 Say Y here if you have a XLP based board. 988 989config MIPS_PARAVIRT 990 bool "Para-Virtualized guest system" 991 select CEVT_R4K 992 select CSRC_R4K 993 select SYS_SUPPORTS_64BIT_KERNEL 994 select SYS_SUPPORTS_32BIT_KERNEL 995 select SYS_SUPPORTS_BIG_ENDIAN 996 select SYS_SUPPORTS_SMP 997 select NR_CPUS_DEFAULT_4 998 select SYS_HAS_EARLY_PRINTK 999 select SYS_HAS_CPU_MIPS32_R2 1000 select SYS_HAS_CPU_MIPS64_R2 1001 select SYS_HAS_CPU_CAVIUM_OCTEON 1002 select HW_HAS_PCI 1003 select SWAP_IO_SPACE 1004 help 1005 This option supports guest running under ???? 1006 1007endchoice 1008 1009source "arch/mips/alchemy/Kconfig" 1010source "arch/mips/ath25/Kconfig" 1011source "arch/mips/ath79/Kconfig" 1012source "arch/mips/bcm47xx/Kconfig" 1013source "arch/mips/bcm63xx/Kconfig" 1014source "arch/mips/bmips/Kconfig" 1015source "arch/mips/generic/Kconfig" 1016source "arch/mips/jazz/Kconfig" 1017source "arch/mips/jz4740/Kconfig" 1018source "arch/mips/lantiq/Kconfig" 1019source "arch/mips/lasat/Kconfig" 1020source "arch/mips/pic32/Kconfig" 1021source "arch/mips/pistachio/Kconfig" 1022source "arch/mips/pmcs-msp71xx/Kconfig" 1023source "arch/mips/ralink/Kconfig" 1024source "arch/mips/sgi-ip27/Kconfig" 1025source "arch/mips/sibyte/Kconfig" 1026source "arch/mips/txx9/Kconfig" 1027source "arch/mips/vr41xx/Kconfig" 1028source "arch/mips/cavium-octeon/Kconfig" 1029source "arch/mips/loongson32/Kconfig" 1030source "arch/mips/loongson64/Kconfig" 1031source "arch/mips/netlogic/Kconfig" 1032source "arch/mips/paravirt/Kconfig" 1033 1034endmenu 1035 1036config RWSEM_GENERIC_SPINLOCK 1037 bool 1038 default y 1039 1040config RWSEM_XCHGADD_ALGORITHM 1041 bool 1042 1043config GENERIC_HWEIGHT 1044 bool 1045 default y 1046 1047config GENERIC_CALIBRATE_DELAY 1048 bool 1049 default y 1050 1051config SCHED_OMIT_FRAME_POINTER 1052 bool 1053 default y 1054 1055# 1056# Select some configuration options automatically based on user selections. 1057# 1058config FW_ARC 1059 bool 1060 1061config ARCH_MAY_HAVE_PC_FDC 1062 bool 1063 1064config BOOT_RAW 1065 bool 1066 1067config CEVT_BCM1480 1068 bool 1069 1070config CEVT_DS1287 1071 bool 1072 1073config CEVT_GT641XX 1074 bool 1075 1076config CEVT_R4K 1077 bool 1078 1079config CEVT_SB1250 1080 bool 1081 1082config CEVT_TXX9 1083 bool 1084 1085config CSRC_BCM1480 1086 bool 1087 1088config CSRC_IOASIC 1089 bool 1090 1091config CSRC_R4K 1092 bool 1093 1094config CSRC_SB1250 1095 bool 1096 1097config MIPS_CLOCK_VSYSCALL 1098 def_bool CSRC_R4K || CLKSRC_MIPS_GIC 1099 1100config GPIO_TXX9 1101 select GPIOLIB 1102 bool 1103 1104config FW_CFE 1105 bool 1106 1107config ARCH_SUPPORTS_UPROBES 1108 bool 1109 1110config DMA_MAYBE_COHERENT 1111 select DMA_NONCOHERENT 1112 bool 1113 1114config DMA_PERDEV_COHERENT 1115 bool 1116 select DMA_MAYBE_COHERENT 1117 1118config DMA_NONCOHERENT 1119 bool 1120 select ARCH_HAS_SYNC_DMA_FOR_DEVICE 1121 select ARCH_HAS_SYNC_DMA_FOR_CPU 1122 select NEED_DMA_MAP_STATE 1123 select DMA_NONCOHERENT_MMAP 1124 select DMA_NONCOHERENT_CACHE_SYNC 1125 select DMA_NONCOHERENT_OPS 1126 1127config SYS_HAS_EARLY_PRINTK 1128 bool 1129 1130config SYS_SUPPORTS_HOTPLUG_CPU 1131 bool 1132 1133config MIPS_BONITO64 1134 bool 1135 1136config MIPS_MSC 1137 bool 1138 1139config MIPS_NILE4 1140 bool 1141 1142config SYNC_R4K 1143 bool 1144 1145config MIPS_MACHINE 1146 def_bool n 1147 1148config NO_IOPORT_MAP 1149 def_bool n 1150 1151config GENERIC_CSUM 1152 bool 1153 default y if !CPU_HAS_LOAD_STORE_LR 1154 1155config GENERIC_ISA_DMA 1156 bool 1157 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1158 select ISA_DMA_API 1159 1160config GENERIC_ISA_DMA_SUPPORT_BROKEN 1161 bool 1162 select GENERIC_ISA_DMA 1163 1164config ISA_DMA_API 1165 bool 1166 1167config HOLES_IN_ZONE 1168 bool 1169 1170config SYS_SUPPORTS_RELOCATABLE 1171 bool 1172 help 1173 Selected if the platform supports relocating the kernel. 1174 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF 1175 to allow access to command line and entropy sources. 1176 1177config MIPS_CBPF_JIT 1178 def_bool y 1179 depends on BPF_JIT && HAVE_CBPF_JIT 1180 1181config MIPS_EBPF_JIT 1182 def_bool y 1183 depends on BPF_JIT && HAVE_EBPF_JIT 1184 1185 1186# 1187# Endianness selection. Sufficiently obscure so many users don't know what to 1188# answer,so we try hard to limit the available choices. Also the use of a 1189# choice statement should be more obvious to the user. 1190# 1191choice 1192 prompt "Endianness selection" 1193 help 1194 Some MIPS machines can be configured for either little or big endian 1195 byte order. These modes require different kernels and a different 1196 Linux distribution. In general there is one preferred byteorder for a 1197 particular system but some systems are just as commonly used in the 1198 one or the other endianness. 1199 1200config CPU_BIG_ENDIAN 1201 bool "Big endian" 1202 depends on SYS_SUPPORTS_BIG_ENDIAN 1203 1204config CPU_LITTLE_ENDIAN 1205 bool "Little endian" 1206 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1207 1208endchoice 1209 1210config EXPORT_UASM 1211 bool 1212 1213config SYS_SUPPORTS_APM_EMULATION 1214 bool 1215 1216config SYS_SUPPORTS_BIG_ENDIAN 1217 bool 1218 1219config SYS_SUPPORTS_LITTLE_ENDIAN 1220 bool 1221 1222config SYS_SUPPORTS_HUGETLBFS 1223 bool 1224 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT 1225 default y 1226 1227config MIPS_HUGE_TLB_SUPPORT 1228 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1229 1230config IRQ_CPU_RM7K 1231 bool 1232 1233config IRQ_MSP_SLP 1234 bool 1235 1236config IRQ_MSP_CIC 1237 bool 1238 1239config IRQ_TXX9 1240 bool 1241 1242config IRQ_GT641XX 1243 bool 1244 1245config PCI_GT64XXX_PCI0 1246 bool 1247 1248config NO_EXCEPT_FILL 1249 bool 1250 1251config SOC_EMMA2RH 1252 bool 1253 select CEVT_R4K 1254 select CSRC_R4K 1255 select DMA_NONCOHERENT 1256 select IRQ_MIPS_CPU 1257 select SWAP_IO_SPACE 1258 select SYS_HAS_CPU_R5500 1259 select SYS_SUPPORTS_32BIT_KERNEL 1260 select SYS_SUPPORTS_64BIT_KERNEL 1261 select SYS_SUPPORTS_BIG_ENDIAN 1262 1263config SOC_PNX833X 1264 bool 1265 select CEVT_R4K 1266 select CSRC_R4K 1267 select IRQ_MIPS_CPU 1268 select DMA_NONCOHERENT 1269 select SYS_HAS_CPU_MIPS32_R2 1270 select SYS_SUPPORTS_32BIT_KERNEL 1271 select SYS_SUPPORTS_LITTLE_ENDIAN 1272 select SYS_SUPPORTS_BIG_ENDIAN 1273 select SYS_SUPPORTS_MIPS16 1274 select CPU_MIPSR2_IRQ_VI 1275 1276config SOC_PNX8335 1277 bool 1278 select SOC_PNX833X 1279 1280config MIPS_SPRAM 1281 bool 1282 1283config SWAP_IO_SPACE 1284 bool 1285 1286config SGI_HAS_INDYDOG 1287 bool 1288 1289config SGI_HAS_HAL2 1290 bool 1291 1292config SGI_HAS_SEEQ 1293 bool 1294 1295config SGI_HAS_WD93 1296 bool 1297 1298config SGI_HAS_ZILOG 1299 bool 1300 1301config SGI_HAS_I8042 1302 bool 1303 1304config DEFAULT_SGI_PARTITION 1305 bool 1306 1307config FW_ARC32 1308 bool 1309 1310config FW_SNIPROM 1311 bool 1312 1313config BOOT_ELF32 1314 bool 1315 1316config MIPS_L1_CACHE_SHIFT_4 1317 bool 1318 1319config MIPS_L1_CACHE_SHIFT_5 1320 bool 1321 1322config MIPS_L1_CACHE_SHIFT_6 1323 bool 1324 1325config MIPS_L1_CACHE_SHIFT_7 1326 bool 1327 1328config MIPS_L1_CACHE_SHIFT 1329 int 1330 default "7" if MIPS_L1_CACHE_SHIFT_7 1331 default "6" if MIPS_L1_CACHE_SHIFT_6 1332 default "5" if MIPS_L1_CACHE_SHIFT_5 1333 default "4" if MIPS_L1_CACHE_SHIFT_4 1334 default "5" 1335 1336config HAVE_STD_PC_SERIAL_PORT 1337 bool 1338 1339config ARC_CONSOLE 1340 bool "ARC console support" 1341 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1342 1343config ARC_MEMORY 1344 bool 1345 depends on MACH_JAZZ || SNI_RM || SGI_IP32 1346 default y 1347 1348config ARC_PROMLIB 1349 bool 1350 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 1351 default y 1352 1353config FW_ARC64 1354 bool 1355 1356config BOOT_ELF64 1357 bool 1358 1359menu "CPU selection" 1360 1361choice 1362 prompt "CPU type" 1363 default CPU_R4X00 1364 1365config CPU_LOONGSON3 1366 bool "Loongson 3 CPU" 1367 depends on SYS_HAS_CPU_LOONGSON3 1368 select ARCH_HAS_PHYS_TO_DMA 1369 select CPU_SUPPORTS_64BIT_KERNEL 1370 select CPU_SUPPORTS_HIGHMEM 1371 select CPU_SUPPORTS_HUGEPAGES 1372 select CPU_HAS_LOAD_STORE_LR 1373 select WEAK_ORDERING 1374 select WEAK_REORDERING_BEYOND_LLSC 1375 select MIPS_PGD_C0_CONTEXT 1376 select MIPS_L1_CACHE_SHIFT_6 1377 select GPIOLIB 1378 select SWIOTLB 1379 help 1380 The Loongson 3 processor implements the MIPS64R2 instruction 1381 set with many extensions. 1382 1383config LOONGSON3_ENHANCEMENT 1384 bool "New Loongson 3 CPU Enhancements" 1385 default n 1386 select CPU_MIPSR2 1387 select CPU_HAS_PREFETCH 1388 depends on CPU_LOONGSON3 1389 help 1390 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A 1391 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1392 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User 1393 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1394 Fast TLB refill support, etc. 1395 1396 This option enable those enhancements which are not probed at run 1397 time. If you want a generic kernel to run on all Loongson 3 machines, 1398 please say 'N' here. If you want a high-performance kernel to run on 1399 new Loongson 3 machines only, please say 'Y' here. 1400 1401config CPU_LOONGSON2E 1402 bool "Loongson 2E" 1403 depends on SYS_HAS_CPU_LOONGSON2E 1404 select CPU_LOONGSON2 1405 help 1406 The Loongson 2E processor implements the MIPS III instruction set 1407 with many extensions. 1408 1409 It has an internal FPGA northbridge, which is compatible to 1410 bonito64. 1411 1412config CPU_LOONGSON2F 1413 bool "Loongson 2F" 1414 depends on SYS_HAS_CPU_LOONGSON2F 1415 select CPU_LOONGSON2 1416 select GPIOLIB 1417 help 1418 The Loongson 2F processor implements the MIPS III instruction set 1419 with many extensions. 1420 1421 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1422 have a similar programming interface with FPGA northbridge used in 1423 Loongson2E. 1424 1425config CPU_LOONGSON1B 1426 bool "Loongson 1B" 1427 depends on SYS_HAS_CPU_LOONGSON1B 1428 select CPU_LOONGSON1 1429 select LEDS_GPIO_REGISTER 1430 help 1431 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1432 Release 1 instruction set and part of the MIPS32 Release 2 1433 instruction set. 1434 1435config CPU_LOONGSON1C 1436 bool "Loongson 1C" 1437 depends on SYS_HAS_CPU_LOONGSON1C 1438 select CPU_LOONGSON1 1439 select LEDS_GPIO_REGISTER 1440 help 1441 The Loongson 1C is a 32-bit SoC, which implements the MIPS32 1442 Release 1 instruction set and part of the MIPS32 Release 2 1443 instruction set. 1444 1445config CPU_MIPS32_R1 1446 bool "MIPS32 Release 1" 1447 depends on SYS_HAS_CPU_MIPS32_R1 1448 select CPU_HAS_PREFETCH 1449 select CPU_HAS_LOAD_STORE_LR 1450 select CPU_SUPPORTS_32BIT_KERNEL 1451 select CPU_SUPPORTS_HIGHMEM 1452 help 1453 Choose this option to build a kernel for release 1 or later of the 1454 MIPS32 architecture. Most modern embedded systems with a 32-bit 1455 MIPS processor are based on a MIPS32 processor. If you know the 1456 specific type of processor in your system, choose those that one 1457 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1458 Release 2 of the MIPS32 architecture is available since several 1459 years so chances are you even have a MIPS32 Release 2 processor 1460 in which case you should choose CPU_MIPS32_R2 instead for better 1461 performance. 1462 1463config CPU_MIPS32_R2 1464 bool "MIPS32 Release 2" 1465 depends on SYS_HAS_CPU_MIPS32_R2 1466 select CPU_HAS_PREFETCH 1467 select CPU_HAS_LOAD_STORE_LR 1468 select CPU_SUPPORTS_32BIT_KERNEL 1469 select CPU_SUPPORTS_HIGHMEM 1470 select CPU_SUPPORTS_MSA 1471 select HAVE_KVM 1472 help 1473 Choose this option to build a kernel for release 2 or later of the 1474 MIPS32 architecture. Most modern embedded systems with a 32-bit 1475 MIPS processor are based on a MIPS32 processor. If you know the 1476 specific type of processor in your system, choose those that one 1477 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1478 1479config CPU_MIPS32_R6 1480 bool "MIPS32 Release 6" 1481 depends on SYS_HAS_CPU_MIPS32_R6 1482 select CPU_HAS_PREFETCH 1483 select CPU_SUPPORTS_32BIT_KERNEL 1484 select CPU_SUPPORTS_HIGHMEM 1485 select CPU_SUPPORTS_MSA 1486 select HAVE_KVM 1487 select MIPS_O32_FP64_SUPPORT 1488 help 1489 Choose this option to build a kernel for release 6 or later of the 1490 MIPS32 architecture. New MIPS processors, starting with the Warrior 1491 family, are based on a MIPS32r6 processor. If you own an older 1492 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1493 1494config CPU_MIPS64_R1 1495 bool "MIPS64 Release 1" 1496 depends on SYS_HAS_CPU_MIPS64_R1 1497 select CPU_HAS_PREFETCH 1498 select CPU_HAS_LOAD_STORE_LR 1499 select CPU_SUPPORTS_32BIT_KERNEL 1500 select CPU_SUPPORTS_64BIT_KERNEL 1501 select CPU_SUPPORTS_HIGHMEM 1502 select CPU_SUPPORTS_HUGEPAGES 1503 help 1504 Choose this option to build a kernel for release 1 or later of the 1505 MIPS64 architecture. Many modern embedded systems with a 64-bit 1506 MIPS processor are based on a MIPS64 processor. If you know the 1507 specific type of processor in your system, choose those that one 1508 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1509 Release 2 of the MIPS64 architecture is available since several 1510 years so chances are you even have a MIPS64 Release 2 processor 1511 in which case you should choose CPU_MIPS64_R2 instead for better 1512 performance. 1513 1514config CPU_MIPS64_R2 1515 bool "MIPS64 Release 2" 1516 depends on SYS_HAS_CPU_MIPS64_R2 1517 select CPU_HAS_PREFETCH 1518 select CPU_HAS_LOAD_STORE_LR 1519 select CPU_SUPPORTS_32BIT_KERNEL 1520 select CPU_SUPPORTS_64BIT_KERNEL 1521 select CPU_SUPPORTS_HIGHMEM 1522 select CPU_SUPPORTS_HUGEPAGES 1523 select CPU_SUPPORTS_MSA 1524 select HAVE_KVM 1525 help 1526 Choose this option to build a kernel for release 2 or later of the 1527 MIPS64 architecture. Many modern embedded systems with a 64-bit 1528 MIPS processor are based on a MIPS64 processor. If you know the 1529 specific type of processor in your system, choose those that one 1530 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1531 1532config CPU_MIPS64_R6 1533 bool "MIPS64 Release 6" 1534 depends on SYS_HAS_CPU_MIPS64_R6 1535 select CPU_HAS_PREFETCH 1536 select CPU_SUPPORTS_32BIT_KERNEL 1537 select CPU_SUPPORTS_64BIT_KERNEL 1538 select CPU_SUPPORTS_HIGHMEM 1539 select CPU_SUPPORTS_MSA 1540 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1541 select HAVE_KVM 1542 help 1543 Choose this option to build a kernel for release 6 or later of the 1544 MIPS64 architecture. New MIPS processors, starting with the Warrior 1545 family, are based on a MIPS64r6 processor. If you own an older 1546 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1547 1548config CPU_R3000 1549 bool "R3000" 1550 depends on SYS_HAS_CPU_R3000 1551 select CPU_HAS_WB 1552 select CPU_HAS_LOAD_STORE_LR 1553 select CPU_SUPPORTS_32BIT_KERNEL 1554 select CPU_SUPPORTS_HIGHMEM 1555 help 1556 Please make sure to pick the right CPU type. Linux/MIPS is not 1557 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1558 *not* work on R4000 machines and vice versa. However, since most 1559 of the supported machines have an R4000 (or similar) CPU, R4x00 1560 might be a safe bet. If the resulting kernel does not work, 1561 try to recompile with R3000. 1562 1563config CPU_TX39XX 1564 bool "R39XX" 1565 depends on SYS_HAS_CPU_TX39XX 1566 select CPU_SUPPORTS_32BIT_KERNEL 1567 select CPU_HAS_LOAD_STORE_LR 1568 1569config CPU_VR41XX 1570 bool "R41xx" 1571 depends on SYS_HAS_CPU_VR41XX 1572 select CPU_SUPPORTS_32BIT_KERNEL 1573 select CPU_SUPPORTS_64BIT_KERNEL 1574 select CPU_HAS_LOAD_STORE_LR 1575 help 1576 The options selects support for the NEC VR4100 series of processors. 1577 Only choose this option if you have one of these processors as a 1578 kernel built with this option will not run on any other type of 1579 processor or vice versa. 1580 1581config CPU_R4300 1582 bool "R4300" 1583 depends on SYS_HAS_CPU_R4300 1584 select CPU_SUPPORTS_32BIT_KERNEL 1585 select CPU_SUPPORTS_64BIT_KERNEL 1586 select CPU_HAS_LOAD_STORE_LR 1587 help 1588 MIPS Technologies R4300-series processors. 1589 1590config CPU_R4X00 1591 bool "R4x00" 1592 depends on SYS_HAS_CPU_R4X00 1593 select CPU_SUPPORTS_32BIT_KERNEL 1594 select CPU_SUPPORTS_64BIT_KERNEL 1595 select CPU_SUPPORTS_HUGEPAGES 1596 select CPU_HAS_LOAD_STORE_LR 1597 help 1598 MIPS Technologies R4000-series processors other than 4300, including 1599 the R4000, R4400, R4600, and 4700. 1600 1601config CPU_TX49XX 1602 bool "R49XX" 1603 depends on SYS_HAS_CPU_TX49XX 1604 select CPU_HAS_PREFETCH 1605 select CPU_HAS_LOAD_STORE_LR 1606 select CPU_SUPPORTS_32BIT_KERNEL 1607 select CPU_SUPPORTS_64BIT_KERNEL 1608 select CPU_SUPPORTS_HUGEPAGES 1609 1610config CPU_R5000 1611 bool "R5000" 1612 depends on SYS_HAS_CPU_R5000 1613 select CPU_SUPPORTS_32BIT_KERNEL 1614 select CPU_SUPPORTS_64BIT_KERNEL 1615 select CPU_SUPPORTS_HUGEPAGES 1616 select CPU_HAS_LOAD_STORE_LR 1617 help 1618 MIPS Technologies R5000-series processors other than the Nevada. 1619 1620config CPU_R5432 1621 bool "R5432" 1622 depends on SYS_HAS_CPU_R5432 1623 select CPU_SUPPORTS_32BIT_KERNEL 1624 select CPU_SUPPORTS_64BIT_KERNEL 1625 select CPU_SUPPORTS_HUGEPAGES 1626 select CPU_HAS_LOAD_STORE_LR 1627 1628config CPU_R5500 1629 bool "R5500" 1630 depends on SYS_HAS_CPU_R5500 1631 select CPU_SUPPORTS_32BIT_KERNEL 1632 select CPU_SUPPORTS_64BIT_KERNEL 1633 select CPU_SUPPORTS_HUGEPAGES 1634 select CPU_HAS_LOAD_STORE_LR 1635 help 1636 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1637 instruction set. 1638 1639config CPU_NEVADA 1640 bool "RM52xx" 1641 depends on SYS_HAS_CPU_NEVADA 1642 select CPU_SUPPORTS_32BIT_KERNEL 1643 select CPU_SUPPORTS_64BIT_KERNEL 1644 select CPU_SUPPORTS_HUGEPAGES 1645 select CPU_HAS_LOAD_STORE_LR 1646 help 1647 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1648 1649config CPU_R8000 1650 bool "R8000" 1651 depends on SYS_HAS_CPU_R8000 1652 select CPU_HAS_PREFETCH 1653 select CPU_HAS_LOAD_STORE_LR 1654 select CPU_SUPPORTS_64BIT_KERNEL 1655 help 1656 MIPS Technologies R8000 processors. Note these processors are 1657 uncommon and the support for them is incomplete. 1658 1659config CPU_R10000 1660 bool "R10000" 1661 depends on SYS_HAS_CPU_R10000 1662 select CPU_HAS_PREFETCH 1663 select CPU_HAS_LOAD_STORE_LR 1664 select CPU_SUPPORTS_32BIT_KERNEL 1665 select CPU_SUPPORTS_64BIT_KERNEL 1666 select CPU_SUPPORTS_HIGHMEM 1667 select CPU_SUPPORTS_HUGEPAGES 1668 help 1669 MIPS Technologies R10000-series processors. 1670 1671config CPU_RM7000 1672 bool "RM7000" 1673 depends on SYS_HAS_CPU_RM7000 1674 select CPU_HAS_PREFETCH 1675 select CPU_HAS_LOAD_STORE_LR 1676 select CPU_SUPPORTS_32BIT_KERNEL 1677 select CPU_SUPPORTS_64BIT_KERNEL 1678 select CPU_SUPPORTS_HIGHMEM 1679 select CPU_SUPPORTS_HUGEPAGES 1680 1681config CPU_SB1 1682 bool "SB1" 1683 depends on SYS_HAS_CPU_SB1 1684 select CPU_HAS_LOAD_STORE_LR 1685 select CPU_SUPPORTS_32BIT_KERNEL 1686 select CPU_SUPPORTS_64BIT_KERNEL 1687 select CPU_SUPPORTS_HIGHMEM 1688 select CPU_SUPPORTS_HUGEPAGES 1689 select WEAK_ORDERING 1690 1691config CPU_CAVIUM_OCTEON 1692 bool "Cavium Octeon processor" 1693 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1694 select CPU_HAS_PREFETCH 1695 select CPU_HAS_LOAD_STORE_LR 1696 select CPU_SUPPORTS_64BIT_KERNEL 1697 select WEAK_ORDERING 1698 select CPU_SUPPORTS_HIGHMEM 1699 select CPU_SUPPORTS_HUGEPAGES 1700 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1701 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1702 select MIPS_L1_CACHE_SHIFT_7 1703 select HAVE_KVM 1704 help 1705 The Cavium Octeon processor is a highly integrated chip containing 1706 many ethernet hardware widgets for networking tasks. The processor 1707 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1708 Full details can be found at http://www.caviumnetworks.com. 1709 1710config CPU_BMIPS 1711 bool "Broadcom BMIPS" 1712 depends on SYS_HAS_CPU_BMIPS 1713 select CPU_MIPS32 1714 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1715 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1716 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1717 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1718 select CPU_SUPPORTS_32BIT_KERNEL 1719 select DMA_NONCOHERENT 1720 select IRQ_MIPS_CPU 1721 select SWAP_IO_SPACE 1722 select WEAK_ORDERING 1723 select CPU_SUPPORTS_HIGHMEM 1724 select CPU_HAS_PREFETCH 1725 select CPU_HAS_LOAD_STORE_LR 1726 select CPU_SUPPORTS_CPUFREQ 1727 select MIPS_EXTERNAL_TIMER 1728 help 1729 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1730 1731config CPU_XLR 1732 bool "Netlogic XLR SoC" 1733 depends on SYS_HAS_CPU_XLR 1734 select CPU_HAS_LOAD_STORE_LR 1735 select CPU_SUPPORTS_32BIT_KERNEL 1736 select CPU_SUPPORTS_64BIT_KERNEL 1737 select CPU_SUPPORTS_HIGHMEM 1738 select CPU_SUPPORTS_HUGEPAGES 1739 select WEAK_ORDERING 1740 select WEAK_REORDERING_BEYOND_LLSC 1741 help 1742 Netlogic Microsystems XLR/XLS processors. 1743 1744config CPU_XLP 1745 bool "Netlogic XLP SoC" 1746 depends on SYS_HAS_CPU_XLP 1747 select CPU_SUPPORTS_32BIT_KERNEL 1748 select CPU_SUPPORTS_64BIT_KERNEL 1749 select CPU_SUPPORTS_HIGHMEM 1750 select WEAK_ORDERING 1751 select WEAK_REORDERING_BEYOND_LLSC 1752 select CPU_HAS_PREFETCH 1753 select CPU_HAS_LOAD_STORE_LR 1754 select CPU_MIPSR2 1755 select CPU_SUPPORTS_HUGEPAGES 1756 select MIPS_ASID_BITS_VARIABLE 1757 help 1758 Netlogic Microsystems XLP processors. 1759endchoice 1760 1761config CPU_MIPS32_3_5_FEATURES 1762 bool "MIPS32 Release 3.5 Features" 1763 depends on SYS_HAS_CPU_MIPS32_R3_5 1764 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6 1765 help 1766 Choose this option to build a kernel for release 2 or later of the 1767 MIPS32 architecture including features from the 3.5 release such as 1768 support for Enhanced Virtual Addressing (EVA). 1769 1770config CPU_MIPS32_3_5_EVA 1771 bool "Enhanced Virtual Addressing (EVA)" 1772 depends on CPU_MIPS32_3_5_FEATURES 1773 select EVA 1774 default y 1775 help 1776 Choose this option if you want to enable the Enhanced Virtual 1777 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1778 One of its primary benefits is an increase in the maximum size 1779 of lowmem (up to 3GB). If unsure, say 'N' here. 1780 1781config CPU_MIPS32_R5_FEATURES 1782 bool "MIPS32 Release 5 Features" 1783 depends on SYS_HAS_CPU_MIPS32_R5 1784 depends on CPU_MIPS32_R2 1785 help 1786 Choose this option to build a kernel for release 2 or later of the 1787 MIPS32 architecture including features from release 5 such as 1788 support for Extended Physical Addressing (XPA). 1789 1790config CPU_MIPS32_R5_XPA 1791 bool "Extended Physical Addressing (XPA)" 1792 depends on CPU_MIPS32_R5_FEATURES 1793 depends on !EVA 1794 depends on !PAGE_SIZE_4KB 1795 depends on SYS_SUPPORTS_HIGHMEM 1796 select XPA 1797 select HIGHMEM 1798 select PHYS_ADDR_T_64BIT 1799 default n 1800 help 1801 Choose this option if you want to enable the Extended Physical 1802 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1803 benefit is to increase physical addressing equal to or greater 1804 than 40 bits. Note that this has the side effect of turning on 1805 64-bit addressing which in turn makes the PTEs 64-bit in size. 1806 If unsure, say 'N' here. 1807 1808if CPU_LOONGSON2F 1809config CPU_NOP_WORKAROUNDS 1810 bool 1811 1812config CPU_JUMP_WORKAROUNDS 1813 bool 1814 1815config CPU_LOONGSON2F_WORKAROUNDS 1816 bool "Loongson 2F Workarounds" 1817 default y 1818 select CPU_NOP_WORKAROUNDS 1819 select CPU_JUMP_WORKAROUNDS 1820 help 1821 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1822 require workarounds. Without workarounds the system may hang 1823 unexpectedly. For more information please refer to the gas 1824 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1825 1826 Loongson 2F03 and later have fixed these issues and no workarounds 1827 are needed. The workarounds have no significant side effect on them 1828 but may decrease the performance of the system so this option should 1829 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1830 systems. 1831 1832 If unsure, please say Y. 1833endif # CPU_LOONGSON2F 1834 1835config SYS_SUPPORTS_ZBOOT 1836 bool 1837 select HAVE_KERNEL_GZIP 1838 select HAVE_KERNEL_BZIP2 1839 select HAVE_KERNEL_LZ4 1840 select HAVE_KERNEL_LZMA 1841 select HAVE_KERNEL_LZO 1842 select HAVE_KERNEL_XZ 1843 1844config SYS_SUPPORTS_ZBOOT_UART16550 1845 bool 1846 select SYS_SUPPORTS_ZBOOT 1847 1848config SYS_SUPPORTS_ZBOOT_UART_PROM 1849 bool 1850 select SYS_SUPPORTS_ZBOOT 1851 1852config CPU_LOONGSON2 1853 bool 1854 select CPU_SUPPORTS_32BIT_KERNEL 1855 select CPU_SUPPORTS_64BIT_KERNEL 1856 select CPU_SUPPORTS_HIGHMEM 1857 select CPU_SUPPORTS_HUGEPAGES 1858 select ARCH_HAS_PHYS_TO_DMA 1859 select CPU_HAS_LOAD_STORE_LR 1860 1861config CPU_LOONGSON1 1862 bool 1863 select CPU_MIPS32 1864 select CPU_MIPSR1 1865 select CPU_HAS_PREFETCH 1866 select CPU_HAS_LOAD_STORE_LR 1867 select CPU_SUPPORTS_32BIT_KERNEL 1868 select CPU_SUPPORTS_HIGHMEM 1869 select CPU_SUPPORTS_CPUFREQ 1870 1871config CPU_BMIPS32_3300 1872 select SMP_UP if SMP 1873 bool 1874 1875config CPU_BMIPS4350 1876 bool 1877 select SYS_SUPPORTS_SMP 1878 select SYS_SUPPORTS_HOTPLUG_CPU 1879 1880config CPU_BMIPS4380 1881 bool 1882 select MIPS_L1_CACHE_SHIFT_6 1883 select SYS_SUPPORTS_SMP 1884 select SYS_SUPPORTS_HOTPLUG_CPU 1885 select CPU_HAS_RIXI 1886 1887config CPU_BMIPS5000 1888 bool 1889 select MIPS_CPU_SCACHE 1890 select MIPS_L1_CACHE_SHIFT_7 1891 select SYS_SUPPORTS_SMP 1892 select SYS_SUPPORTS_HOTPLUG_CPU 1893 select CPU_HAS_RIXI 1894 1895config SYS_HAS_CPU_LOONGSON3 1896 bool 1897 select CPU_SUPPORTS_CPUFREQ 1898 select CPU_HAS_RIXI 1899 1900config SYS_HAS_CPU_LOONGSON2E 1901 bool 1902 1903config SYS_HAS_CPU_LOONGSON2F 1904 bool 1905 select CPU_SUPPORTS_CPUFREQ 1906 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1907 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1908 1909config SYS_HAS_CPU_LOONGSON1B 1910 bool 1911 1912config SYS_HAS_CPU_LOONGSON1C 1913 bool 1914 1915config SYS_HAS_CPU_MIPS32_R1 1916 bool 1917 1918config SYS_HAS_CPU_MIPS32_R2 1919 bool 1920 1921config SYS_HAS_CPU_MIPS32_R3_5 1922 bool 1923 1924config SYS_HAS_CPU_MIPS32_R5 1925 bool 1926 1927config SYS_HAS_CPU_MIPS32_R6 1928 bool 1929 1930config SYS_HAS_CPU_MIPS64_R1 1931 bool 1932 1933config SYS_HAS_CPU_MIPS64_R2 1934 bool 1935 1936config SYS_HAS_CPU_MIPS64_R6 1937 bool 1938 1939config SYS_HAS_CPU_R3000 1940 bool 1941 1942config SYS_HAS_CPU_TX39XX 1943 bool 1944 1945config SYS_HAS_CPU_VR41XX 1946 bool 1947 1948config SYS_HAS_CPU_R4300 1949 bool 1950 1951config SYS_HAS_CPU_R4X00 1952 bool 1953 1954config SYS_HAS_CPU_TX49XX 1955 bool 1956 1957config SYS_HAS_CPU_R5000 1958 bool 1959 1960config SYS_HAS_CPU_R5432 1961 bool 1962 1963config SYS_HAS_CPU_R5500 1964 bool 1965 1966config SYS_HAS_CPU_NEVADA 1967 bool 1968 1969config SYS_HAS_CPU_R8000 1970 bool 1971 1972config SYS_HAS_CPU_R10000 1973 bool 1974 1975config SYS_HAS_CPU_RM7000 1976 bool 1977 1978config SYS_HAS_CPU_SB1 1979 bool 1980 1981config SYS_HAS_CPU_CAVIUM_OCTEON 1982 bool 1983 1984config SYS_HAS_CPU_BMIPS 1985 bool 1986 1987config SYS_HAS_CPU_BMIPS32_3300 1988 bool 1989 select SYS_HAS_CPU_BMIPS 1990 1991config SYS_HAS_CPU_BMIPS4350 1992 bool 1993 select SYS_HAS_CPU_BMIPS 1994 1995config SYS_HAS_CPU_BMIPS4380 1996 bool 1997 select SYS_HAS_CPU_BMIPS 1998 1999config SYS_HAS_CPU_BMIPS5000 2000 bool 2001 select SYS_HAS_CPU_BMIPS 2002 2003config SYS_HAS_CPU_XLR 2004 bool 2005 2006config SYS_HAS_CPU_XLP 2007 bool 2008 2009# 2010# CPU may reorder R->R, R->W, W->R, W->W 2011# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 2012# 2013config WEAK_ORDERING 2014 bool 2015 2016# 2017# CPU may reorder reads and writes beyond LL/SC 2018# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 2019# 2020config WEAK_REORDERING_BEYOND_LLSC 2021 bool 2022endmenu 2023 2024# 2025# These two indicate any level of the MIPS32 and MIPS64 architecture 2026# 2027config CPU_MIPS32 2028 bool 2029 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6 2030 2031config CPU_MIPS64 2032 bool 2033 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 2034 2035# 2036# These two indicate the revision of the architecture, either Release 1 or Release 2 2037# 2038config CPU_MIPSR1 2039 bool 2040 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 2041 2042config CPU_MIPSR2 2043 bool 2044 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2045 select CPU_HAS_RIXI 2046 select MIPS_SPRAM 2047 2048config CPU_MIPSR6 2049 bool 2050 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2051 select CPU_HAS_RIXI 2052 select HAVE_ARCH_BITREVERSE 2053 select MIPS_ASID_BITS_VARIABLE 2054 select MIPS_CRC_SUPPORT 2055 select MIPS_SPRAM 2056 2057config EVA 2058 bool 2059 2060config XPA 2061 bool 2062 2063config SYS_SUPPORTS_32BIT_KERNEL 2064 bool 2065config SYS_SUPPORTS_64BIT_KERNEL 2066 bool 2067config CPU_SUPPORTS_32BIT_KERNEL 2068 bool 2069config CPU_SUPPORTS_64BIT_KERNEL 2070 bool 2071config CPU_SUPPORTS_CPUFREQ 2072 bool 2073config CPU_SUPPORTS_ADDRWINCFG 2074 bool 2075config CPU_SUPPORTS_HUGEPAGES 2076 bool 2077config CPU_SUPPORTS_UNCACHED_ACCELERATED 2078 bool 2079config MIPS_PGD_C0_CONTEXT 2080 bool 2081 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP 2082 2083# 2084# Set to y for ptrace access to watch registers. 2085# 2086config HARDWARE_WATCHPOINTS 2087 bool 2088 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2089 2090menu "Kernel type" 2091 2092choice 2093 prompt "Kernel code model" 2094 help 2095 You should only select this option if you have a workload that 2096 actually benefits from 64-bit processing or if your machine has 2097 large memory. You will only be presented a single option in this 2098 menu if your system does not support both 32-bit and 64-bit kernels. 2099 2100config 32BIT 2101 bool "32-bit kernel" 2102 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2103 select TRAD_SIGNALS 2104 help 2105 Select this option if you want to build a 32-bit kernel. 2106 2107config 64BIT 2108 bool "64-bit kernel" 2109 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2110 help 2111 Select this option if you want to build a 64-bit kernel. 2112 2113endchoice 2114 2115config KVM_GUEST 2116 bool "KVM Guest Kernel" 2117 depends on BROKEN_ON_SMP 2118 help 2119 Select this option if building a guest kernel for KVM (Trap & Emulate) 2120 mode. 2121 2122config KVM_GUEST_TIMER_FREQ 2123 int "Count/Compare Timer Frequency (MHz)" 2124 depends on KVM_GUEST 2125 default 100 2126 help 2127 Set this to non-zero if building a guest kernel for KVM to skip RTC 2128 emulation when determining guest CPU Frequency. Instead, the guest's 2129 timer frequency is specified directly. 2130 2131config MIPS_VA_BITS_48 2132 bool "48 bits virtual memory" 2133 depends on 64BIT 2134 help 2135 Support a maximum at least 48 bits of application virtual 2136 memory. Default is 40 bits or less, depending on the CPU. 2137 For page sizes 16k and above, this option results in a small 2138 memory overhead for page tables. For 4k page size, a fourth 2139 level of page tables is added which imposes both a memory 2140 overhead as well as slower TLB fault handling. 2141 2142 If unsure, say N. 2143 2144choice 2145 prompt "Kernel page size" 2146 default PAGE_SIZE_4KB 2147 2148config PAGE_SIZE_4KB 2149 bool "4kB" 2150 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3 2151 help 2152 This option select the standard 4kB Linux page size. On some 2153 R3000-family processors this is the only available page size. Using 2154 4kB page size will minimize memory consumption and is therefore 2155 recommended for low memory systems. 2156 2157config PAGE_SIZE_8KB 2158 bool "8kB" 2159 depends on CPU_R8000 || CPU_CAVIUM_OCTEON 2160 depends on !MIPS_VA_BITS_48 2161 help 2162 Using 8kB page size will result in higher performance kernel at 2163 the price of higher memory consumption. This option is available 2164 only on R8000 and cnMIPS processors. Note that you will need a 2165 suitable Linux distribution to support this. 2166 2167config PAGE_SIZE_16KB 2168 bool "16kB" 2169 depends on !CPU_R3000 && !CPU_TX39XX 2170 help 2171 Using 16kB page size will result in higher performance kernel at 2172 the price of higher memory consumption. This option is available on 2173 all non-R3000 family processors. Note that you will need a suitable 2174 Linux distribution to support this. 2175 2176config PAGE_SIZE_32KB 2177 bool "32kB" 2178 depends on CPU_CAVIUM_OCTEON 2179 depends on !MIPS_VA_BITS_48 2180 help 2181 Using 32kB page size will result in higher performance kernel at 2182 the price of higher memory consumption. This option is available 2183 only on cnMIPS cores. Note that you will need a suitable Linux 2184 distribution to support this. 2185 2186config PAGE_SIZE_64KB 2187 bool "64kB" 2188 depends on !CPU_R3000 && !CPU_TX39XX 2189 help 2190 Using 64kB 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 processor. Not that at the time of this 2193 writing this option is still high experimental. 2194 2195endchoice 2196 2197config FORCE_MAX_ZONEORDER 2198 int "Maximum zone order" 2199 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2200 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2201 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2202 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2203 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2204 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2205 range 11 64 2206 default "11" 2207 help 2208 The kernel memory allocator divides physically contiguous memory 2209 blocks into "zones", where each zone is a power of two number of 2210 pages. This option selects the largest power of two that the kernel 2211 keeps in the memory allocator. If you need to allocate very large 2212 blocks of physically contiguous memory, then you may need to 2213 increase this value. 2214 2215 This config option is actually maximum order plus one. For example, 2216 a value of 11 means that the largest free memory block is 2^10 pages. 2217 2218 The page size is not necessarily 4KB. Keep this in mind 2219 when choosing a value for this option. 2220 2221config BOARD_SCACHE 2222 bool 2223 2224config IP22_CPU_SCACHE 2225 bool 2226 select BOARD_SCACHE 2227 2228# 2229# Support for a MIPS32 / MIPS64 style S-caches 2230# 2231config MIPS_CPU_SCACHE 2232 bool 2233 select BOARD_SCACHE 2234 2235config R5000_CPU_SCACHE 2236 bool 2237 select BOARD_SCACHE 2238 2239config RM7000_CPU_SCACHE 2240 bool 2241 select BOARD_SCACHE 2242 2243config SIBYTE_DMA_PAGEOPS 2244 bool "Use DMA to clear/copy pages" 2245 depends on CPU_SB1 2246 help 2247 Instead of using the CPU to zero and copy pages, use a Data Mover 2248 channel. These DMA channels are otherwise unused by the standard 2249 SiByte Linux port. Seems to give a small performance benefit. 2250 2251config CPU_HAS_PREFETCH 2252 bool 2253 2254config CPU_GENERIC_DUMP_TLB 2255 bool 2256 default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX) 2257 2258config CPU_R4K_FPU 2259 bool 2260 default y if !(CPU_R3000 || CPU_TX39XX) 2261 2262config CPU_R4K_CACHE_TLB 2263 bool 2264 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 2265 2266config MIPS_MT_SMP 2267 bool "MIPS MT SMP support (1 TC on each available VPE)" 2268 default y 2269 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS 2270 select CPU_MIPSR2_IRQ_VI 2271 select CPU_MIPSR2_IRQ_EI 2272 select SYNC_R4K 2273 select MIPS_MT 2274 select SMP 2275 select SMP_UP 2276 select SYS_SUPPORTS_SMP 2277 select SYS_SUPPORTS_SCHED_SMT 2278 select MIPS_PERF_SHARED_TC_COUNTERS 2279 help 2280 This is a kernel model which is known as SMVP. This is supported 2281 on cores with the MT ASE and uses the available VPEs to implement 2282 virtual processors which supports SMP. This is equivalent to the 2283 Intel Hyperthreading feature. For further information go to 2284 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2285 2286config MIPS_MT 2287 bool 2288 2289config SCHED_SMT 2290 bool "SMT (multithreading) scheduler support" 2291 depends on SYS_SUPPORTS_SCHED_SMT 2292 default n 2293 help 2294 SMT scheduler support improves the CPU scheduler's decision making 2295 when dealing with MIPS MT enabled cores at a cost of slightly 2296 increased overhead in some places. If unsure say N here. 2297 2298config SYS_SUPPORTS_SCHED_SMT 2299 bool 2300 2301config SYS_SUPPORTS_MULTITHREADING 2302 bool 2303 2304config MIPS_MT_FPAFF 2305 bool "Dynamic FPU affinity for FP-intensive threads" 2306 default y 2307 depends on MIPS_MT_SMP 2308 2309config MIPSR2_TO_R6_EMULATOR 2310 bool "MIPS R2-to-R6 emulator" 2311 depends on CPU_MIPSR6 2312 default y 2313 help 2314 Choose this option if you want to run non-R6 MIPS userland code. 2315 Even if you say 'Y' here, the emulator will still be disabled by 2316 default. You can enable it using the 'mipsr2emu' kernel option. 2317 The only reason this is a build-time option is to save ~14K from the 2318 final kernel image. 2319 2320config SYS_SUPPORTS_VPE_LOADER 2321 bool 2322 depends on SYS_SUPPORTS_MULTITHREADING 2323 help 2324 Indicates that the platform supports the VPE loader, and provides 2325 physical_memsize. 2326 2327config MIPS_VPE_LOADER 2328 bool "VPE loader support." 2329 depends on SYS_SUPPORTS_VPE_LOADER && MODULES 2330 select CPU_MIPSR2_IRQ_VI 2331 select CPU_MIPSR2_IRQ_EI 2332 select MIPS_MT 2333 help 2334 Includes a loader for loading an elf relocatable object 2335 onto another VPE and running it. 2336 2337config MIPS_VPE_LOADER_CMP 2338 bool 2339 default "y" 2340 depends on MIPS_VPE_LOADER && MIPS_CMP 2341 2342config MIPS_VPE_LOADER_MT 2343 bool 2344 default "y" 2345 depends on MIPS_VPE_LOADER && !MIPS_CMP 2346 2347config MIPS_VPE_LOADER_TOM 2348 bool "Load VPE program into memory hidden from linux" 2349 depends on MIPS_VPE_LOADER 2350 default y 2351 help 2352 The loader can use memory that is present but has been hidden from 2353 Linux using the kernel command line option "mem=xxMB". It's up to 2354 you to ensure the amount you put in the option and the space your 2355 program requires is less or equal to the amount physically present. 2356 2357config MIPS_VPE_APSP_API 2358 bool "Enable support for AP/SP API (RTLX)" 2359 depends on MIPS_VPE_LOADER 2360 2361config MIPS_VPE_APSP_API_CMP 2362 bool 2363 default "y" 2364 depends on MIPS_VPE_APSP_API && MIPS_CMP 2365 2366config MIPS_VPE_APSP_API_MT 2367 bool 2368 default "y" 2369 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2370 2371config MIPS_CMP 2372 bool "MIPS CMP framework support (DEPRECATED)" 2373 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2374 select SMP 2375 select SYNC_R4K 2376 select SYS_SUPPORTS_SMP 2377 select WEAK_ORDERING 2378 default n 2379 help 2380 Select this if you are using a bootloader which implements the "CMP 2381 framework" protocol (ie. YAMON) and want your kernel to make use of 2382 its ability to start secondary CPUs. 2383 2384 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2385 instead of this. 2386 2387config MIPS_CPS 2388 bool "MIPS Coherent Processing System support" 2389 depends on SYS_SUPPORTS_MIPS_CPS 2390 select MIPS_CM 2391 select MIPS_CPS_PM if HOTPLUG_CPU 2392 select SMP 2393 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2394 select SYS_SUPPORTS_HOTPLUG_CPU 2395 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6 2396 select SYS_SUPPORTS_SMP 2397 select WEAK_ORDERING 2398 help 2399 Select this if you wish to run an SMP kernel across multiple cores 2400 within a MIPS Coherent Processing System. When this option is 2401 enabled the kernel will probe for other cores and boot them with 2402 no external assistance. It is safe to enable this when hardware 2403 support is unavailable. 2404 2405config MIPS_CPS_PM 2406 depends on MIPS_CPS 2407 bool 2408 2409config MIPS_CM 2410 bool 2411 select MIPS_CPC 2412 2413config MIPS_CPC 2414 bool 2415 2416config SB1_PASS_2_WORKAROUNDS 2417 bool 2418 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2419 default y 2420 2421config SB1_PASS_2_1_WORKAROUNDS 2422 bool 2423 depends on CPU_SB1 && CPU_SB1_PASS_2 2424 default y 2425 2426 2427choice 2428 prompt "SmartMIPS or microMIPS ASE support" 2429 2430config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2431 bool "None" 2432 help 2433 Select this if you want neither microMIPS nor SmartMIPS support 2434 2435config CPU_HAS_SMARTMIPS 2436 depends on SYS_SUPPORTS_SMARTMIPS 2437 bool "SmartMIPS" 2438 help 2439 SmartMIPS is a extension of the MIPS32 architecture aimed at 2440 increased security at both hardware and software level for 2441 smartcards. Enabling this option will allow proper use of the 2442 SmartMIPS instructions by Linux applications. However a kernel with 2443 this option will not work on a MIPS core without SmartMIPS core. If 2444 you don't know you probably don't have SmartMIPS and should say N 2445 here. 2446 2447config CPU_MICROMIPS 2448 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2449 bool "microMIPS" 2450 help 2451 When this option is enabled the kernel will be built using the 2452 microMIPS ISA 2453 2454endchoice 2455 2456config CPU_HAS_MSA 2457 bool "Support for the MIPS SIMD Architecture" 2458 depends on CPU_SUPPORTS_MSA 2459 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2460 help 2461 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2462 and a set of SIMD instructions to operate on them. When this option 2463 is enabled the kernel will support allocating & switching MSA 2464 vector register contexts. If you know that your kernel will only be 2465 running on CPUs which do not support MSA or that your userland will 2466 not be making use of it then you may wish to say N here to reduce 2467 the size & complexity of your kernel. 2468 2469 If unsure, say Y. 2470 2471config CPU_HAS_WB 2472 bool 2473 2474config XKS01 2475 bool 2476 2477config CPU_HAS_RIXI 2478 bool 2479 2480config CPU_HAS_LOAD_STORE_LR 2481 bool 2482 help 2483 CPU has support for unaligned load and store instructions: 2484 LWL, LWR, SWL, SWR (Load/store word left/right). 2485 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems). 2486 2487# 2488# Vectored interrupt mode is an R2 feature 2489# 2490config CPU_MIPSR2_IRQ_VI 2491 bool 2492 2493# 2494# Extended interrupt mode is an R2 feature 2495# 2496config CPU_MIPSR2_IRQ_EI 2497 bool 2498 2499config CPU_HAS_SYNC 2500 bool 2501 depends on !CPU_R3000 2502 default y 2503 2504# 2505# CPU non-features 2506# 2507config CPU_DADDI_WORKAROUNDS 2508 bool 2509 2510config CPU_R4000_WORKAROUNDS 2511 bool 2512 select CPU_R4400_WORKAROUNDS 2513 2514config CPU_R4400_WORKAROUNDS 2515 bool 2516 2517config MIPS_ASID_SHIFT 2518 int 2519 default 6 if CPU_R3000 || CPU_TX39XX 2520 default 4 if CPU_R8000 2521 default 0 2522 2523config MIPS_ASID_BITS 2524 int 2525 default 0 if MIPS_ASID_BITS_VARIABLE 2526 default 6 if CPU_R3000 || CPU_TX39XX 2527 default 8 2528 2529config MIPS_ASID_BITS_VARIABLE 2530 bool 2531 2532config MIPS_CRC_SUPPORT 2533 bool 2534 2535# 2536# - Highmem only makes sense for the 32-bit kernel. 2537# - The current highmem code will only work properly on physically indexed 2538# caches such as R3000, SB1, R7000 or those that look like they're virtually 2539# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2540# moment we protect the user and offer the highmem option only on machines 2541# where it's known to be safe. This will not offer highmem on a few systems 2542# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2543# indexed CPUs but we're playing safe. 2544# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2545# know they might have memory configurations that could make use of highmem 2546# support. 2547# 2548config HIGHMEM 2549 bool "High Memory Support" 2550 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2551 2552config CPU_SUPPORTS_HIGHMEM 2553 bool 2554 2555config SYS_SUPPORTS_HIGHMEM 2556 bool 2557 2558config SYS_SUPPORTS_SMARTMIPS 2559 bool 2560 2561config SYS_SUPPORTS_MICROMIPS 2562 bool 2563 2564config SYS_SUPPORTS_MIPS16 2565 bool 2566 help 2567 This option must be set if a kernel might be executed on a MIPS16- 2568 enabled CPU even if MIPS16 is not actually being used. In other 2569 words, it makes the kernel MIPS16-tolerant. 2570 2571config CPU_SUPPORTS_MSA 2572 bool 2573 2574config ARCH_FLATMEM_ENABLE 2575 def_bool y 2576 depends on !NUMA && !CPU_LOONGSON2 2577 2578config ARCH_DISCONTIGMEM_ENABLE 2579 bool 2580 default y if SGI_IP27 2581 help 2582 Say Y to support efficient handling of discontiguous physical memory, 2583 for architectures which are either NUMA (Non-Uniform Memory Access) 2584 or have huge holes in the physical address space for other reasons. 2585 See <file:Documentation/vm/numa.rst> for more. 2586 2587config ARCH_SPARSEMEM_ENABLE 2588 bool 2589 select SPARSEMEM_STATIC 2590 2591config NUMA 2592 bool "NUMA Support" 2593 depends on SYS_SUPPORTS_NUMA 2594 help 2595 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2596 Access). This option improves performance on systems with more 2597 than two nodes; on two node systems it is generally better to 2598 leave it disabled; on single node systems disable this option 2599 disabled. 2600 2601config SYS_SUPPORTS_NUMA 2602 bool 2603 2604config RELOCATABLE 2605 bool "Relocatable kernel" 2606 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC) 2607 help 2608 This builds a kernel image that retains relocation information 2609 so it can be loaded someplace besides the default 1MB. 2610 The relocations make the kernel binary about 15% larger, 2611 but are discarded at runtime 2612 2613config RELOCATION_TABLE_SIZE 2614 hex "Relocation table size" 2615 depends on RELOCATABLE 2616 range 0x0 0x01000000 2617 default "0x00100000" 2618 ---help--- 2619 A table of relocation data will be appended to the kernel binary 2620 and parsed at boot to fix up the relocated kernel. 2621 2622 This option allows the amount of space reserved for the table to be 2623 adjusted, although the default of 1Mb should be ok in most cases. 2624 2625 The build will fail and a valid size suggested if this is too small. 2626 2627 If unsure, leave at the default value. 2628 2629config RANDOMIZE_BASE 2630 bool "Randomize the address of the kernel image" 2631 depends on RELOCATABLE 2632 ---help--- 2633 Randomizes the physical and virtual address at which the 2634 kernel image is loaded, as a security feature that 2635 deters exploit attempts relying on knowledge of the location 2636 of kernel internals. 2637 2638 Entropy is generated using any coprocessor 0 registers available. 2639 2640 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2641 2642 If unsure, say N. 2643 2644config RANDOMIZE_BASE_MAX_OFFSET 2645 hex "Maximum kASLR offset" if EXPERT 2646 depends on RANDOMIZE_BASE 2647 range 0x0 0x40000000 if EVA || 64BIT 2648 range 0x0 0x08000000 2649 default "0x01000000" 2650 ---help--- 2651 When kASLR is active, this provides the maximum offset that will 2652 be applied to the kernel image. It should be set according to the 2653 amount of physical RAM available in the target system minus 2654 PHYSICAL_START and must be a power of 2. 2655 2656 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2657 EVA or 64-bit. The default is 16Mb. 2658 2659config NODES_SHIFT 2660 int 2661 default "6" 2662 depends on NEED_MULTIPLE_NODES 2663 2664config HW_PERF_EVENTS 2665 bool "Enable hardware performance counter support for perf events" 2666 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3) 2667 default y 2668 help 2669 Enable hardware performance counter support for perf events. If 2670 disabled, perf events will use software events only. 2671 2672config SMP 2673 bool "Multi-Processing support" 2674 depends on SYS_SUPPORTS_SMP 2675 help 2676 This enables support for systems with more than one CPU. If you have 2677 a system with only one CPU, say N. If you have a system with more 2678 than one CPU, say Y. 2679 2680 If you say N here, the kernel will run on uni- and multiprocessor 2681 machines, but will use only one CPU of a multiprocessor machine. If 2682 you say Y here, the kernel will run on many, but not all, 2683 uniprocessor machines. On a uniprocessor machine, the kernel 2684 will run faster if you say N here. 2685 2686 People using multiprocessor machines who say Y here should also say 2687 Y to "Enhanced Real Time Clock Support", below. 2688 2689 See also the SMP-HOWTO available at 2690 <http://www.tldp.org/docs.html#howto>. 2691 2692 If you don't know what to do here, say N. 2693 2694config HOTPLUG_CPU 2695 bool "Support for hot-pluggable CPUs" 2696 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 2697 help 2698 Say Y here to allow turning CPUs off and on. CPUs can be 2699 controlled through /sys/devices/system/cpu. 2700 (Note: power management support will enable this option 2701 automatically on SMP systems. ) 2702 Say N if you want to disable CPU hotplug. 2703 2704config SMP_UP 2705 bool 2706 2707config SYS_SUPPORTS_MIPS_CMP 2708 bool 2709 2710config SYS_SUPPORTS_MIPS_CPS 2711 bool 2712 2713config SYS_SUPPORTS_SMP 2714 bool 2715 2716config NR_CPUS_DEFAULT_4 2717 bool 2718 2719config NR_CPUS_DEFAULT_8 2720 bool 2721 2722config NR_CPUS_DEFAULT_16 2723 bool 2724 2725config NR_CPUS_DEFAULT_32 2726 bool 2727 2728config NR_CPUS_DEFAULT_64 2729 bool 2730 2731config NR_CPUS 2732 int "Maximum number of CPUs (2-256)" 2733 range 2 256 2734 depends on SMP 2735 default "4" if NR_CPUS_DEFAULT_4 2736 default "8" if NR_CPUS_DEFAULT_8 2737 default "16" if NR_CPUS_DEFAULT_16 2738 default "32" if NR_CPUS_DEFAULT_32 2739 default "64" if NR_CPUS_DEFAULT_64 2740 help 2741 This allows you to specify the maximum number of CPUs which this 2742 kernel will support. The maximum supported value is 32 for 32-bit 2743 kernel and 64 for 64-bit kernels; the minimum value which makes 2744 sense is 1 for Qemu (useful only for kernel debugging purposes) 2745 and 2 for all others. 2746 2747 This is purely to save memory - each supported CPU adds 2748 approximately eight kilobytes to the kernel image. For best 2749 performance should round up your number of processors to the next 2750 power of two. 2751 2752config MIPS_PERF_SHARED_TC_COUNTERS 2753 bool 2754 2755config MIPS_NR_CPU_NR_MAP_1024 2756 bool 2757 2758config MIPS_NR_CPU_NR_MAP 2759 int 2760 depends on SMP 2761 default 1024 if MIPS_NR_CPU_NR_MAP_1024 2762 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024 2763 2764# 2765# Timer Interrupt Frequency Configuration 2766# 2767 2768choice 2769 prompt "Timer frequency" 2770 default HZ_250 2771 help 2772 Allows the configuration of the timer frequency. 2773 2774 config HZ_24 2775 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2776 2777 config HZ_48 2778 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2779 2780 config HZ_100 2781 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2782 2783 config HZ_128 2784 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2785 2786 config HZ_250 2787 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2788 2789 config HZ_256 2790 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2791 2792 config HZ_1000 2793 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2794 2795 config HZ_1024 2796 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2797 2798endchoice 2799 2800config SYS_SUPPORTS_24HZ 2801 bool 2802 2803config SYS_SUPPORTS_48HZ 2804 bool 2805 2806config SYS_SUPPORTS_100HZ 2807 bool 2808 2809config SYS_SUPPORTS_128HZ 2810 bool 2811 2812config SYS_SUPPORTS_250HZ 2813 bool 2814 2815config SYS_SUPPORTS_256HZ 2816 bool 2817 2818config SYS_SUPPORTS_1000HZ 2819 bool 2820 2821config SYS_SUPPORTS_1024HZ 2822 bool 2823 2824config SYS_SUPPORTS_ARBIT_HZ 2825 bool 2826 default y if !SYS_SUPPORTS_24HZ && \ 2827 !SYS_SUPPORTS_48HZ && \ 2828 !SYS_SUPPORTS_100HZ && \ 2829 !SYS_SUPPORTS_128HZ && \ 2830 !SYS_SUPPORTS_250HZ && \ 2831 !SYS_SUPPORTS_256HZ && \ 2832 !SYS_SUPPORTS_1000HZ && \ 2833 !SYS_SUPPORTS_1024HZ 2834 2835config HZ 2836 int 2837 default 24 if HZ_24 2838 default 48 if HZ_48 2839 default 100 if HZ_100 2840 default 128 if HZ_128 2841 default 250 if HZ_250 2842 default 256 if HZ_256 2843 default 1000 if HZ_1000 2844 default 1024 if HZ_1024 2845 2846config SCHED_HRTICK 2847 def_bool HIGH_RES_TIMERS 2848 2849config KEXEC 2850 bool "Kexec system call" 2851 select KEXEC_CORE 2852 help 2853 kexec is a system call that implements the ability to shutdown your 2854 current kernel, and to start another kernel. It is like a reboot 2855 but it is independent of the system firmware. And like a reboot 2856 you can start any kernel with it, not just Linux. 2857 2858 The name comes from the similarity to the exec system call. 2859 2860 It is an ongoing process to be certain the hardware in a machine 2861 is properly shutdown, so do not be surprised if this code does not 2862 initially work for you. As of this writing the exact hardware 2863 interface is strongly in flux, so no good recommendation can be 2864 made. 2865 2866config CRASH_DUMP 2867 bool "Kernel crash dumps" 2868 help 2869 Generate crash dump after being started by kexec. 2870 This should be normally only set in special crash dump kernels 2871 which are loaded in the main kernel with kexec-tools into 2872 a specially reserved region and then later executed after 2873 a crash by kdump/kexec. The crash dump kernel must be compiled 2874 to a memory address not used by the main kernel or firmware using 2875 PHYSICAL_START. 2876 2877config PHYSICAL_START 2878 hex "Physical address where the kernel is loaded" 2879 default "0xffffffff84000000" 2880 depends on CRASH_DUMP 2881 help 2882 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2883 If you plan to use kernel for capturing the crash dump change 2884 this value to start of the reserved region (the "X" value as 2885 specified in the "crashkernel=YM@XM" command line boot parameter 2886 passed to the panic-ed kernel). 2887 2888config SECCOMP 2889 bool "Enable seccomp to safely compute untrusted bytecode" 2890 depends on PROC_FS 2891 default y 2892 help 2893 This kernel feature is useful for number crunching applications 2894 that may need to compute untrusted bytecode during their 2895 execution. By using pipes or other transports made available to 2896 the process as file descriptors supporting the read/write 2897 syscalls, it's possible to isolate those applications in 2898 their own address space using seccomp. Once seccomp is 2899 enabled via /proc/<pid>/seccomp, it cannot be disabled 2900 and the task is only allowed to execute a few safe syscalls 2901 defined by each seccomp mode. 2902 2903 If unsure, say Y. Only embedded should say N here. 2904 2905config MIPS_O32_FP64_SUPPORT 2906 bool "Support for O32 binaries using 64-bit FP" 2907 depends on 32BIT || MIPS32_O32 2908 help 2909 When this is enabled, the kernel will support use of 64-bit floating 2910 point registers with binaries using the O32 ABI along with the 2911 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 2912 32-bit MIPS systems this support is at the cost of increasing the 2913 size and complexity of the compiled FPU emulator. Thus if you are 2914 running a MIPS32 system and know that none of your userland binaries 2915 will require 64-bit floating point, you may wish to reduce the size 2916 of your kernel & potentially improve FP emulation performance by 2917 saying N here. 2918 2919 Although binutils currently supports use of this flag the details 2920 concerning its effect upon the O32 ABI in userland are still being 2921 worked on. In order to avoid userland becoming dependant upon current 2922 behaviour before the details have been finalised, this option should 2923 be considered experimental and only enabled by those working upon 2924 said details. 2925 2926 If unsure, say N. 2927 2928config USE_OF 2929 bool 2930 select OF 2931 select OF_EARLY_FLATTREE 2932 select IRQ_DOMAIN 2933 2934config UHI_BOOT 2935 bool 2936 2937config BUILTIN_DTB 2938 bool 2939 2940choice 2941 prompt "Kernel appended dtb support" if USE_OF 2942 default MIPS_NO_APPENDED_DTB 2943 2944 config MIPS_NO_APPENDED_DTB 2945 bool "None" 2946 help 2947 Do not enable appended dtb support. 2948 2949 config MIPS_ELF_APPENDED_DTB 2950 bool "vmlinux" 2951 help 2952 With this option, the boot code will look for a device tree binary 2953 DTB) included in the vmlinux ELF section .appended_dtb. By default 2954 it is empty and the DTB can be appended using binutils command 2955 objcopy: 2956 2957 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 2958 2959 This is meant as a backward compatiblity convenience for those 2960 systems with a bootloader that can't be upgraded to accommodate 2961 the documented boot protocol using a device tree. 2962 2963 config MIPS_RAW_APPENDED_DTB 2964 bool "vmlinux.bin or vmlinuz.bin" 2965 help 2966 With this option, the boot code will look for a device tree binary 2967 DTB) appended to raw vmlinux.bin or vmlinuz.bin. 2968 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 2969 2970 This is meant as a backward compatibility convenience for those 2971 systems with a bootloader that can't be upgraded to accommodate 2972 the documented boot protocol using a device tree. 2973 2974 Beware that there is very little in terms of protection against 2975 this option being confused by leftover garbage in memory that might 2976 look like a DTB header after a reboot if no actual DTB is appended 2977 to vmlinux.bin. Do not leave this option active in a production kernel 2978 if you don't intend to always append a DTB. 2979endchoice 2980 2981choice 2982 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 2983 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 2984 !MIPS_MALTA && \ 2985 !CAVIUM_OCTEON_SOC 2986 default MIPS_CMDLINE_FROM_BOOTLOADER 2987 2988 config MIPS_CMDLINE_FROM_DTB 2989 depends on USE_OF 2990 bool "Dtb kernel arguments if available" 2991 2992 config MIPS_CMDLINE_DTB_EXTEND 2993 depends on USE_OF 2994 bool "Extend dtb kernel arguments with bootloader arguments" 2995 2996 config MIPS_CMDLINE_FROM_BOOTLOADER 2997 bool "Bootloader kernel arguments if available" 2998 2999 config MIPS_CMDLINE_BUILTIN_EXTEND 3000 depends on CMDLINE_BOOL 3001 bool "Extend builtin kernel arguments with bootloader arguments" 3002endchoice 3003 3004endmenu 3005 3006config LOCKDEP_SUPPORT 3007 bool 3008 default y 3009 3010config STACKTRACE_SUPPORT 3011 bool 3012 default y 3013 3014config HAVE_LATENCYTOP_SUPPORT 3015 bool 3016 default y 3017 3018config PGTABLE_LEVELS 3019 int 3020 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48 3021 default 3 if 64BIT && !PAGE_SIZE_64KB 3022 default 2 3023 3024config MIPS_AUTO_PFN_OFFSET 3025 bool 3026 3027menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 3028 3029config HW_HAS_EISA 3030 bool 3031config HW_HAS_PCI 3032 bool 3033 3034config PCI 3035 bool "Support for PCI controller" 3036 depends on HW_HAS_PCI 3037 select PCI_DOMAINS 3038 help 3039 Find out whether you have a PCI motherboard. PCI is the name of a 3040 bus system, i.e. the way the CPU talks to the other stuff inside 3041 your box. Other bus systems are ISA, EISA, or VESA. If you have PCI, 3042 say Y, otherwise N. 3043 3044config HT_PCI 3045 bool "Support for HT-linked PCI" 3046 default y 3047 depends on CPU_LOONGSON3 3048 select PCI 3049 select PCI_DOMAINS 3050 help 3051 Loongson family machines use Hyper-Transport bus for inter-core 3052 connection and device connection. The PCI bus is a subordinate 3053 linked at HT. Choose Y for Loongson-3 based machines. 3054 3055config PCI_DOMAINS 3056 bool 3057 3058config PCI_DOMAINS_GENERIC 3059 bool 3060 3061config PCI_DRIVERS_GENERIC 3062 select PCI_DOMAINS_GENERIC if PCI_DOMAINS 3063 bool 3064 3065config PCI_DRIVERS_LEGACY 3066 def_bool !PCI_DRIVERS_GENERIC 3067 select NO_GENERIC_PCI_IOPORT_MAP 3068 3069source "drivers/pci/Kconfig" 3070 3071# 3072# ISA support is now enabled via select. Too many systems still have the one 3073# or other ISA chip on the board that users don't know about so don't expect 3074# users to choose the right thing ... 3075# 3076config ISA 3077 bool 3078 3079config EISA 3080 bool "EISA support" 3081 depends on HW_HAS_EISA 3082 select ISA 3083 select GENERIC_ISA_DMA 3084 ---help--- 3085 The Extended Industry Standard Architecture (EISA) bus was 3086 developed as an open alternative to the IBM MicroChannel bus. 3087 3088 The EISA bus provided some of the features of the IBM MicroChannel 3089 bus while maintaining backward compatibility with cards made for 3090 the older ISA bus. The EISA bus saw limited use between 1988 and 3091 1995 when it was made obsolete by the PCI bus. 3092 3093 Say Y here if you are building a kernel for an EISA-based machine. 3094 3095 Otherwise, say N. 3096 3097source "drivers/eisa/Kconfig" 3098 3099config TC 3100 bool "TURBOchannel support" 3101 depends on MACH_DECSTATION 3102 help 3103 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3104 processors. TURBOchannel programming specifications are available 3105 at: 3106 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3107 and: 3108 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3109 Linux driver support status is documented at: 3110 <http://www.linux-mips.org/wiki/DECstation> 3111 3112config MMU 3113 bool 3114 default y 3115 3116config ARCH_MMAP_RND_BITS_MIN 3117 default 12 if 64BIT 3118 default 8 3119 3120config ARCH_MMAP_RND_BITS_MAX 3121 default 18 if 64BIT 3122 default 15 3123 3124config ARCH_MMAP_RND_COMPAT_BITS_MIN 3125 default 8 3126 3127config ARCH_MMAP_RND_COMPAT_BITS_MAX 3128 default 15 3129 3130config I8253 3131 bool 3132 select CLKSRC_I8253 3133 select CLKEVT_I8253 3134 select MIPS_EXTERNAL_TIMER 3135 3136config ZONE_DMA 3137 bool 3138 3139config ZONE_DMA32 3140 bool 3141 3142source "drivers/pcmcia/Kconfig" 3143 3144config HAS_RAPIDIO 3145 bool 3146 default n 3147 3148config RAPIDIO 3149 tristate "RapidIO support" 3150 depends on HAS_RAPIDIO || PCI 3151 help 3152 If you say Y here, the kernel will include drivers and 3153 infrastructure code to support RapidIO interconnect devices. 3154 3155source "drivers/rapidio/Kconfig" 3156 3157endmenu 3158 3159config TRAD_SIGNALS 3160 bool 3161 3162config MIPS32_COMPAT 3163 bool 3164 3165config COMPAT 3166 bool 3167 3168config SYSVIPC_COMPAT 3169 bool 3170 3171config MIPS32_O32 3172 bool "Kernel support for o32 binaries" 3173 depends on 64BIT 3174 select ARCH_WANT_OLD_COMPAT_IPC 3175 select COMPAT 3176 select MIPS32_COMPAT 3177 select SYSVIPC_COMPAT if SYSVIPC 3178 help 3179 Select this option if you want to run o32 binaries. These are pure 3180 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3181 existing binaries are in this format. 3182 3183 If unsure, say Y. 3184 3185config MIPS32_N32 3186 bool "Kernel support for n32 binaries" 3187 depends on 64BIT 3188 select COMPAT 3189 select MIPS32_COMPAT 3190 select SYSVIPC_COMPAT if SYSVIPC 3191 help 3192 Select this option if you want to run n32 binaries. These are 3193 64-bit binaries using 32-bit quantities for addressing and certain 3194 data that would normally be 64-bit. They are used in special 3195 cases. 3196 3197 If unsure, say N. 3198 3199config BINFMT_ELF32 3200 bool 3201 default y if MIPS32_O32 || MIPS32_N32 3202 select ELFCORE 3203 3204menu "Power management options" 3205 3206config ARCH_HIBERNATION_POSSIBLE 3207 def_bool y 3208 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3209 3210config ARCH_SUSPEND_POSSIBLE 3211 def_bool y 3212 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3213 3214source "kernel/power/Kconfig" 3215 3216endmenu 3217 3218config MIPS_EXTERNAL_TIMER 3219 bool 3220 3221menu "CPU Power Management" 3222 3223if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3224source "drivers/cpufreq/Kconfig" 3225endif 3226 3227source "drivers/cpuidle/Kconfig" 3228 3229endmenu 3230 3231source "drivers/firmware/Kconfig" 3232 3233source "arch/mips/kvm/Kconfig" 3234