1# SPDX-License-Identifier: GPL-2.0 2config MIPS 3 bool 4 default y 5 select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT 6 select ARCH_CLOCKSOURCE_DATA 7 select ARCH_DISCARD_MEMBLOCK 8 select ARCH_HAS_ELF_RANDOMIZE 9 select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST 10 select ARCH_HAS_UBSAN_SANITIZE_ALL 11 select ARCH_SUPPORTS_UPROBES 12 select ARCH_USE_BUILTIN_BSWAP 13 select ARCH_USE_CMPXCHG_LOCKREF if 64BIT 14 select ARCH_USE_QUEUED_RWLOCKS 15 select ARCH_USE_QUEUED_SPINLOCKS 16 select ARCH_WANT_IPC_PARSE_VERSION 17 select BUILDTIME_EXTABLE_SORT 18 select CLONE_BACKWARDS 19 select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1) 20 select CPU_PM if CPU_IDLE 21 select GENERIC_ATOMIC64 if !64BIT 22 select GENERIC_CLOCKEVENTS 23 select GENERIC_CMOS_UPDATE 24 select GENERIC_CPU_AUTOPROBE 25 select GENERIC_IOMAP 26 select GENERIC_IRQ_PROBE 27 select GENERIC_IRQ_SHOW 28 select GENERIC_ISA_DMA if EISA 29 select GENERIC_LIB_ASHLDI3 30 select GENERIC_LIB_ASHRDI3 31 select GENERIC_LIB_CMPDI2 32 select GENERIC_LIB_LSHRDI3 33 select GENERIC_LIB_UCMPDI2 34 select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC 35 select GENERIC_SMP_IDLE_THREAD 36 select GENERIC_TIME_VSYSCALL 37 select HANDLE_DOMAIN_IRQ 38 select HAVE_ARCH_COMPILER_H 39 select HAVE_ARCH_JUMP_LABEL 40 select HAVE_ARCH_KGDB 41 select HAVE_ARCH_MMAP_RND_BITS if MMU 42 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT 43 select HAVE_ARCH_SECCOMP_FILTER 44 select HAVE_ARCH_TRACEHOOK 45 select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES && 64BIT 46 select HAVE_CBPF_JIT if (!64BIT && !CPU_MICROMIPS) 47 select HAVE_EBPF_JIT if (64BIT && !CPU_MICROMIPS) 48 select HAVE_CONTEXT_TRACKING 49 select HAVE_COPY_THREAD_TLS 50 select HAVE_C_RECORDMCOUNT 51 select HAVE_DEBUG_KMEMLEAK 52 select HAVE_DEBUG_STACKOVERFLOW 53 select HAVE_DMA_CONTIGUOUS 54 select HAVE_DYNAMIC_FTRACE 55 select HAVE_EXIT_THREAD 56 select HAVE_FTRACE_MCOUNT_RECORD 57 select HAVE_FUNCTION_GRAPH_TRACER 58 select HAVE_FUNCTION_TRACER 59 select HAVE_GENERIC_DMA_COHERENT 60 select HAVE_IDE 61 select HAVE_IOREMAP_PROT 62 select HAVE_IRQ_EXIT_ON_IRQ_STACK 63 select HAVE_IRQ_TIME_ACCOUNTING 64 select HAVE_KPROBES 65 select HAVE_KRETPROBES 66 select HAVE_LD_DEAD_CODE_DATA_ELIMINATION 67 select HAVE_MEMBLOCK_NODE_MAP 68 select HAVE_MOD_ARCH_SPECIFIC 69 select HAVE_NMI 70 select HAVE_OPROFILE 71 select HAVE_PERF_EVENTS 72 select HAVE_REGS_AND_STACK_ACCESS_API 73 select HAVE_RSEQ 74 select HAVE_STACKPROTECTOR 75 select HAVE_SYSCALL_TRACEPOINTS 76 select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP 77 select IRQ_FORCED_THREADING 78 select ISA if EISA 79 select MODULES_USE_ELF_RELA if MODULES && 64BIT 80 select MODULES_USE_ELF_REL if MODULES 81 select PERF_USE_VMALLOC 82 select RTC_LIB 83 select SYSCTL_EXCEPTION_TRACE 84 select VIRT_TO_BUS 85 86menu "Machine selection" 87 88choice 89 prompt "System type" 90 default MIPS_GENERIC 91 92config MIPS_GENERIC 93 bool "Generic board-agnostic MIPS kernel" 94 select BOOT_RAW 95 select BUILTIN_DTB 96 select CEVT_R4K 97 select CLKSRC_MIPS_GIC 98 select COMMON_CLK 99 select CPU_MIPSR2_IRQ_VI 100 select CPU_MIPSR2_IRQ_EI 101 select CSRC_R4K 102 select DMA_PERDEV_COHERENT 103 select HAVE_PCI 104 select IRQ_MIPS_CPU 105 select LIBFDT 106 select MIPS_AUTO_PFN_OFFSET 107 select MIPS_CPU_SCACHE 108 select MIPS_GIC 109 select MIPS_L1_CACHE_SHIFT_7 110 select NO_EXCEPT_FILL 111 select PCI_DRIVERS_GENERIC 112 select PINCTRL 113 select SMP_UP if SMP 114 select SWAP_IO_SPACE 115 select SYS_HAS_CPU_MIPS32_R1 116 select SYS_HAS_CPU_MIPS32_R2 117 select SYS_HAS_CPU_MIPS32_R6 118 select SYS_HAS_CPU_MIPS64_R1 119 select SYS_HAS_CPU_MIPS64_R2 120 select SYS_HAS_CPU_MIPS64_R6 121 select SYS_SUPPORTS_32BIT_KERNEL 122 select SYS_SUPPORTS_64BIT_KERNEL 123 select SYS_SUPPORTS_BIG_ENDIAN 124 select SYS_SUPPORTS_HIGHMEM 125 select SYS_SUPPORTS_LITTLE_ENDIAN 126 select SYS_SUPPORTS_MICROMIPS 127 select SYS_SUPPORTS_MIPS_CPS 128 select SYS_SUPPORTS_MIPS16 129 select SYS_SUPPORTS_MULTITHREADING 130 select SYS_SUPPORTS_RELOCATABLE 131 select SYS_SUPPORTS_SMARTMIPS 132 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 133 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 134 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 135 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 136 select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 137 select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 138 select USE_OF 139 select UHI_BOOT 140 help 141 Select this to build a kernel which aims to support multiple boards, 142 generally using a flattened device tree passed from the bootloader 143 using the boot protocol defined in the UHI (Unified Hosting 144 Interface) specification. 145 146config MIPS_ALCHEMY 147 bool "Alchemy processor based machines" 148 select PHYS_ADDR_T_64BIT 149 select CEVT_R4K 150 select CSRC_R4K 151 select IRQ_MIPS_CPU 152 select DMA_MAYBE_COHERENT # Au1000,1500,1100 aren't, rest is 153 select SYS_HAS_CPU_MIPS32_R1 154 select SYS_SUPPORTS_32BIT_KERNEL 155 select SYS_SUPPORTS_APM_EMULATION 156 select GPIOLIB 157 select SYS_SUPPORTS_ZBOOT 158 select COMMON_CLK 159 160config AR7 161 bool "Texas Instruments AR7" 162 select BOOT_ELF32 163 select DMA_NONCOHERENT 164 select CEVT_R4K 165 select CSRC_R4K 166 select IRQ_MIPS_CPU 167 select NO_EXCEPT_FILL 168 select SWAP_IO_SPACE 169 select SYS_HAS_CPU_MIPS32_R1 170 select SYS_HAS_EARLY_PRINTK 171 select SYS_SUPPORTS_32BIT_KERNEL 172 select SYS_SUPPORTS_LITTLE_ENDIAN 173 select SYS_SUPPORTS_MIPS16 174 select SYS_SUPPORTS_ZBOOT_UART16550 175 select GPIOLIB 176 select VLYNQ 177 select HAVE_CLK 178 help 179 Support for the Texas Instruments AR7 System-on-a-Chip 180 family: TNETD7100, 7200 and 7300. 181 182config ATH25 183 bool "Atheros AR231x/AR531x SoC support" 184 select CEVT_R4K 185 select CSRC_R4K 186 select DMA_NONCOHERENT 187 select IRQ_MIPS_CPU 188 select IRQ_DOMAIN 189 select SYS_HAS_CPU_MIPS32_R1 190 select SYS_SUPPORTS_BIG_ENDIAN 191 select SYS_SUPPORTS_32BIT_KERNEL 192 select SYS_HAS_EARLY_PRINTK 193 help 194 Support for Atheros AR231x and Atheros AR531x based boards 195 196config ATH79 197 bool "Atheros AR71XX/AR724X/AR913X based boards" 198 select ARCH_HAS_RESET_CONTROLLER 199 select BOOT_RAW 200 select CEVT_R4K 201 select CSRC_R4K 202 select DMA_NONCOHERENT 203 select GPIOLIB 204 select PINCTRL 205 select HAVE_CLK 206 select COMMON_CLK 207 select CLKDEV_LOOKUP 208 select IRQ_MIPS_CPU 209 select SYS_HAS_CPU_MIPS32_R2 210 select SYS_HAS_EARLY_PRINTK 211 select SYS_SUPPORTS_32BIT_KERNEL 212 select SYS_SUPPORTS_BIG_ENDIAN 213 select SYS_SUPPORTS_MIPS16 214 select SYS_SUPPORTS_ZBOOT_UART_PROM 215 select USE_OF 216 select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM 217 help 218 Support for the Atheros AR71XX/AR724X/AR913X SoCs. 219 220config BMIPS_GENERIC 221 bool "Broadcom Generic BMIPS kernel" 222 select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL 223 select ARCH_HAS_PHYS_TO_DMA 224 select BOOT_RAW 225 select NO_EXCEPT_FILL 226 select USE_OF 227 select CEVT_R4K 228 select CSRC_R4K 229 select SYNC_R4K 230 select COMMON_CLK 231 select BCM6345_L1_IRQ 232 select BCM7038_L1_IRQ 233 select BCM7120_L2_IRQ 234 select BRCMSTB_L2_IRQ 235 select IRQ_MIPS_CPU 236 select DMA_NONCOHERENT 237 select SYS_SUPPORTS_32BIT_KERNEL 238 select SYS_SUPPORTS_LITTLE_ENDIAN 239 select SYS_SUPPORTS_BIG_ENDIAN 240 select SYS_SUPPORTS_HIGHMEM 241 select SYS_HAS_CPU_BMIPS32_3300 242 select SYS_HAS_CPU_BMIPS4350 243 select SYS_HAS_CPU_BMIPS4380 244 select SYS_HAS_CPU_BMIPS5000 245 select SWAP_IO_SPACE 246 select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 247 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 248 select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN 249 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 250 select HARDIRQS_SW_RESEND 251 help 252 Build a generic DT-based kernel image that boots on select 253 BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top 254 box chips. Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN 255 must be set appropriately for your board. 256 257config BCM47XX 258 bool "Broadcom BCM47XX based boards" 259 select BOOT_RAW 260 select CEVT_R4K 261 select CSRC_R4K 262 select DMA_NONCOHERENT 263 select HAVE_PCI 264 select IRQ_MIPS_CPU 265 select SYS_HAS_CPU_MIPS32_R1 266 select NO_EXCEPT_FILL 267 select SYS_SUPPORTS_32BIT_KERNEL 268 select SYS_SUPPORTS_LITTLE_ENDIAN 269 select SYS_SUPPORTS_MIPS16 270 select SYS_SUPPORTS_ZBOOT 271 select SYS_HAS_EARLY_PRINTK 272 select USE_GENERIC_EARLY_PRINTK_8250 273 select GPIOLIB 274 select LEDS_GPIO_REGISTER 275 select BCM47XX_NVRAM 276 select BCM47XX_SPROM 277 select BCM47XX_SSB if !BCM47XX_BCMA 278 help 279 Support for BCM47XX based boards 280 281config BCM63XX 282 bool "Broadcom BCM63XX based boards" 283 select BOOT_RAW 284 select CEVT_R4K 285 select CSRC_R4K 286 select SYNC_R4K 287 select DMA_NONCOHERENT 288 select IRQ_MIPS_CPU 289 select SYS_SUPPORTS_32BIT_KERNEL 290 select SYS_SUPPORTS_BIG_ENDIAN 291 select SYS_HAS_EARLY_PRINTK 292 select SWAP_IO_SPACE 293 select GPIOLIB 294 select HAVE_CLK 295 select MIPS_L1_CACHE_SHIFT_4 296 select CLKDEV_LOOKUP 297 help 298 Support for BCM63XX based boards 299 300config MIPS_COBALT 301 bool "Cobalt Server" 302 select CEVT_R4K 303 select CSRC_R4K 304 select CEVT_GT641XX 305 select DMA_NONCOHERENT 306 select FORCE_PCI 307 select I8253 308 select I8259 309 select IRQ_MIPS_CPU 310 select IRQ_GT641XX 311 select PCI_GT64XXX_PCI0 312 select SYS_HAS_CPU_NEVADA 313 select SYS_HAS_EARLY_PRINTK 314 select SYS_SUPPORTS_32BIT_KERNEL 315 select SYS_SUPPORTS_64BIT_KERNEL 316 select SYS_SUPPORTS_LITTLE_ENDIAN 317 select USE_GENERIC_EARLY_PRINTK_8250 318 319config MACH_DECSTATION 320 bool "DECstations" 321 select BOOT_ELF32 322 select CEVT_DS1287 323 select CEVT_R4K if CPU_R4X00 324 select CSRC_IOASIC 325 select CSRC_R4K if CPU_R4X00 326 select CPU_DADDI_WORKAROUNDS if 64BIT 327 select CPU_R4000_WORKAROUNDS if 64BIT 328 select CPU_R4400_WORKAROUNDS if 64BIT 329 select DMA_NONCOHERENT 330 select NO_IOPORT_MAP 331 select IRQ_MIPS_CPU 332 select SYS_HAS_CPU_R3000 333 select SYS_HAS_CPU_R4X00 334 select SYS_SUPPORTS_32BIT_KERNEL 335 select SYS_SUPPORTS_64BIT_KERNEL 336 select SYS_SUPPORTS_LITTLE_ENDIAN 337 select SYS_SUPPORTS_128HZ 338 select SYS_SUPPORTS_256HZ 339 select SYS_SUPPORTS_1024HZ 340 select MIPS_L1_CACHE_SHIFT_4 341 help 342 This enables support for DEC's MIPS based workstations. For details 343 see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the 344 DECstation porting pages on <http://decstation.unix-ag.org/>. 345 346 If you have one of the following DECstation Models you definitely 347 want to choose R4xx0 for the CPU Type: 348 349 DECstation 5000/50 350 DECstation 5000/150 351 DECstation 5000/260 352 DECsystem 5900/260 353 354 otherwise choose R3000. 355 356config MACH_JAZZ 357 bool "Jazz family of machines" 358 select ARCH_MIGHT_HAVE_PC_PARPORT 359 select ARCH_MIGHT_HAVE_PC_SERIO 360 select FW_ARC 361 select FW_ARC32 362 select ARCH_MAY_HAVE_PC_FDC 363 select CEVT_R4K 364 select CSRC_R4K 365 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 366 select GENERIC_ISA_DMA 367 select HAVE_PCSPKR_PLATFORM 368 select IRQ_MIPS_CPU 369 select I8253 370 select I8259 371 select ISA 372 select SYS_HAS_CPU_R4X00 373 select SYS_SUPPORTS_32BIT_KERNEL 374 select SYS_SUPPORTS_64BIT_KERNEL 375 select SYS_SUPPORTS_100HZ 376 help 377 This a family of machines based on the MIPS R4030 chipset which was 378 used by several vendors to build RISC/os and Windows NT workstations. 379 Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and 380 Olivetti M700-10 workstations. 381 382config MACH_INGENIC 383 bool "Ingenic SoC based machines" 384 select SYS_SUPPORTS_32BIT_KERNEL 385 select SYS_SUPPORTS_LITTLE_ENDIAN 386 select SYS_SUPPORTS_ZBOOT_UART16550 387 select DMA_NONCOHERENT 388 select IRQ_MIPS_CPU 389 select PINCTRL 390 select GPIOLIB 391 select COMMON_CLK 392 select GENERIC_IRQ_CHIP 393 select BUILTIN_DTB if MIPS_NO_APPENDED_DTB 394 select USE_OF 395 select LIBFDT 396 397config LANTIQ 398 bool "Lantiq based platforms" 399 select DMA_NONCOHERENT 400 select IRQ_MIPS_CPU 401 select CEVT_R4K 402 select CSRC_R4K 403 select SYS_HAS_CPU_MIPS32_R1 404 select SYS_HAS_CPU_MIPS32_R2 405 select SYS_SUPPORTS_BIG_ENDIAN 406 select SYS_SUPPORTS_32BIT_KERNEL 407 select SYS_SUPPORTS_MIPS16 408 select SYS_SUPPORTS_MULTITHREADING 409 select SYS_SUPPORTS_VPE_LOADER 410 select SYS_HAS_EARLY_PRINTK 411 select GPIOLIB 412 select SWAP_IO_SPACE 413 select BOOT_RAW 414 select CLKDEV_LOOKUP 415 select USE_OF 416 select PINCTRL 417 select PINCTRL_LANTIQ 418 select ARCH_HAS_RESET_CONTROLLER 419 select RESET_CONTROLLER 420 421config LASAT 422 bool "LASAT Networks platforms" 423 select CEVT_R4K 424 select CRC32 425 select CSRC_R4K 426 select DMA_NONCOHERENT 427 select SYS_HAS_EARLY_PRINTK 428 select HAVE_PCI 429 select IRQ_MIPS_CPU 430 select PCI_GT64XXX_PCI0 431 select MIPS_NILE4 432 select R5000_CPU_SCACHE 433 select SYS_HAS_CPU_R5000 434 select SYS_SUPPORTS_32BIT_KERNEL 435 select SYS_SUPPORTS_64BIT_KERNEL if BROKEN 436 select SYS_SUPPORTS_LITTLE_ENDIAN 437 438config MACH_LOONGSON32 439 bool "Loongson-1 family of machines" 440 select SYS_SUPPORTS_ZBOOT 441 help 442 This enables support for the Loongson-1 family of machines. 443 444 Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by 445 the Institute of Computing Technology (ICT), Chinese Academy of 446 Sciences (CAS). 447 448config MACH_LOONGSON64 449 bool "Loongson-2/3 family of machines" 450 select SYS_SUPPORTS_ZBOOT 451 help 452 This enables the support of Loongson-2/3 family of machines. 453 454 Loongson-2 is a family of single-core CPUs and Loongson-3 is a 455 family of multi-core CPUs. They are both 64-bit general-purpose 456 MIPS-compatible CPUs. Loongson-2/3 are developed by the Institute 457 of Computing Technology (ICT), Chinese Academy of Sciences (CAS) 458 in the People's Republic of China. The chief architect is Professor 459 Weiwu Hu. 460 461config MACH_PISTACHIO 462 bool "IMG Pistachio SoC based boards" 463 select BOOT_ELF32 464 select BOOT_RAW 465 select CEVT_R4K 466 select CLKSRC_MIPS_GIC 467 select COMMON_CLK 468 select CSRC_R4K 469 select DMA_NONCOHERENT 470 select GPIOLIB 471 select IRQ_MIPS_CPU 472 select LIBFDT 473 select MFD_SYSCON 474 select MIPS_CPU_SCACHE 475 select MIPS_GIC 476 select PINCTRL 477 select REGULATOR 478 select SYS_HAS_CPU_MIPS32_R2 479 select SYS_SUPPORTS_32BIT_KERNEL 480 select SYS_SUPPORTS_LITTLE_ENDIAN 481 select SYS_SUPPORTS_MIPS_CPS 482 select SYS_SUPPORTS_MULTITHREADING 483 select SYS_SUPPORTS_RELOCATABLE 484 select SYS_SUPPORTS_ZBOOT 485 select SYS_HAS_EARLY_PRINTK 486 select USE_GENERIC_EARLY_PRINTK_8250 487 select USE_OF 488 help 489 This enables support for the IMG Pistachio SoC platform. 490 491config MIPS_MALTA 492 bool "MIPS Malta board" 493 select ARCH_MAY_HAVE_PC_FDC 494 select ARCH_MIGHT_HAVE_PC_PARPORT 495 select ARCH_MIGHT_HAVE_PC_SERIO 496 select BOOT_ELF32 497 select BOOT_RAW 498 select BUILTIN_DTB 499 select CEVT_R4K 500 select CLKSRC_MIPS_GIC 501 select COMMON_CLK 502 select CSRC_R4K 503 select DMA_MAYBE_COHERENT 504 select GENERIC_ISA_DMA 505 select HAVE_PCSPKR_PLATFORM 506 select HAVE_PCI 507 select I8253 508 select I8259 509 select IRQ_MIPS_CPU 510 select LIBFDT 511 select MIPS_BONITO64 512 select MIPS_CPU_SCACHE 513 select MIPS_GIC 514 select MIPS_L1_CACHE_SHIFT_6 515 select MIPS_MSC 516 select PCI_GT64XXX_PCI0 517 select SMP_UP if SMP 518 select SWAP_IO_SPACE 519 select SYS_HAS_CPU_MIPS32_R1 520 select SYS_HAS_CPU_MIPS32_R2 521 select SYS_HAS_CPU_MIPS32_R3_5 522 select SYS_HAS_CPU_MIPS32_R5 523 select SYS_HAS_CPU_MIPS32_R6 524 select SYS_HAS_CPU_MIPS64_R1 525 select SYS_HAS_CPU_MIPS64_R2 526 select SYS_HAS_CPU_MIPS64_R6 527 select SYS_HAS_CPU_NEVADA 528 select SYS_HAS_CPU_RM7000 529 select SYS_SUPPORTS_32BIT_KERNEL 530 select SYS_SUPPORTS_64BIT_KERNEL 531 select SYS_SUPPORTS_BIG_ENDIAN 532 select SYS_SUPPORTS_HIGHMEM 533 select SYS_SUPPORTS_LITTLE_ENDIAN 534 select SYS_SUPPORTS_MICROMIPS 535 select SYS_SUPPORTS_MIPS16 536 select SYS_SUPPORTS_MIPS_CMP 537 select SYS_SUPPORTS_MIPS_CPS 538 select SYS_SUPPORTS_MULTITHREADING 539 select SYS_SUPPORTS_RELOCATABLE 540 select SYS_SUPPORTS_SMARTMIPS 541 select SYS_SUPPORTS_VPE_LOADER 542 select SYS_SUPPORTS_ZBOOT 543 select USE_OF 544 select ZONE_DMA32 if 64BIT 545 help 546 This enables support for the MIPS Technologies Malta evaluation 547 board. 548 549config MACH_PIC32 550 bool "Microchip PIC32 Family" 551 help 552 This enables support for the Microchip PIC32 family of platforms. 553 554 Microchip PIC32 is a family of general-purpose 32 bit MIPS core 555 microcontrollers. 556 557config NEC_MARKEINS 558 bool "NEC EMMA2RH Mark-eins board" 559 select SOC_EMMA2RH 560 select HAVE_PCI 561 help 562 This enables support for the NEC Electronics Mark-eins boards. 563 564config MACH_VR41XX 565 bool "NEC VR4100 series based machines" 566 select CEVT_R4K 567 select CSRC_R4K 568 select SYS_HAS_CPU_VR41XX 569 select SYS_SUPPORTS_MIPS16 570 select GPIOLIB 571 572config NXP_STB220 573 bool "NXP STB220 board" 574 select SOC_PNX833X 575 help 576 Support for NXP Semiconductors STB220 Development Board. 577 578config NXP_STB225 579 bool "NXP 225 board" 580 select SOC_PNX833X 581 select SOC_PNX8335 582 help 583 Support for NXP Semiconductors STB225 Development Board. 584 585config PMC_MSP 586 bool "PMC-Sierra MSP chipsets" 587 select CEVT_R4K 588 select CSRC_R4K 589 select DMA_NONCOHERENT 590 select SWAP_IO_SPACE 591 select NO_EXCEPT_FILL 592 select BOOT_RAW 593 select SYS_HAS_CPU_MIPS32_R1 594 select SYS_HAS_CPU_MIPS32_R2 595 select SYS_SUPPORTS_32BIT_KERNEL 596 select SYS_SUPPORTS_BIG_ENDIAN 597 select SYS_SUPPORTS_MIPS16 598 select IRQ_MIPS_CPU 599 select SERIAL_8250 600 select SERIAL_8250_CONSOLE 601 select USB_EHCI_BIG_ENDIAN_MMIO 602 select USB_EHCI_BIG_ENDIAN_DESC 603 help 604 This adds support for the PMC-Sierra family of Multi-Service 605 Processor System-On-A-Chips. These parts include a number 606 of integrated peripherals, interfaces and DSPs in addition to 607 a variety of MIPS cores. 608 609config RALINK 610 bool "Ralink based machines" 611 select CEVT_R4K 612 select CSRC_R4K 613 select BOOT_RAW 614 select DMA_NONCOHERENT 615 select IRQ_MIPS_CPU 616 select USE_OF 617 select SYS_HAS_CPU_MIPS32_R1 618 select SYS_HAS_CPU_MIPS32_R2 619 select SYS_SUPPORTS_32BIT_KERNEL 620 select SYS_SUPPORTS_LITTLE_ENDIAN 621 select SYS_SUPPORTS_MIPS16 622 select SYS_HAS_EARLY_PRINTK 623 select CLKDEV_LOOKUP 624 select ARCH_HAS_RESET_CONTROLLER 625 select RESET_CONTROLLER 626 627config SGI_IP22 628 bool "SGI IP22 (Indy/Indigo2)" 629 select FW_ARC 630 select FW_ARC32 631 select ARCH_MIGHT_HAVE_PC_SERIO 632 select BOOT_ELF32 633 select CEVT_R4K 634 select CSRC_R4K 635 select DEFAULT_SGI_PARTITION 636 select DMA_NONCOHERENT 637 select HAVE_EISA 638 select I8253 639 select I8259 640 select IP22_CPU_SCACHE 641 select IRQ_MIPS_CPU 642 select GENERIC_ISA_DMA_SUPPORT_BROKEN 643 select SGI_HAS_I8042 644 select SGI_HAS_INDYDOG 645 select SGI_HAS_HAL2 646 select SGI_HAS_SEEQ 647 select SGI_HAS_WD93 648 select SGI_HAS_ZILOG 649 select SWAP_IO_SPACE 650 select SYS_HAS_CPU_R4X00 651 select SYS_HAS_CPU_R5000 652 # 653 # Disable EARLY_PRINTK for now since it leads to overwritten prom 654 # memory during early boot on some machines. 655 # 656 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 657 # for a more details discussion 658 # 659 # select SYS_HAS_EARLY_PRINTK 660 select SYS_SUPPORTS_32BIT_KERNEL 661 select SYS_SUPPORTS_64BIT_KERNEL 662 select SYS_SUPPORTS_BIG_ENDIAN 663 select MIPS_L1_CACHE_SHIFT_7 664 help 665 This are the SGI Indy, Challenge S and Indigo2, as well as certain 666 OEM variants like the Tandem CMN B006S. To compile a Linux kernel 667 that runs on these, say Y here. 668 669config SGI_IP27 670 bool "SGI IP27 (Origin200/2000)" 671 select ARCH_HAS_PHYS_TO_DMA 672 select FW_ARC 673 select FW_ARC64 674 select BOOT_ELF64 675 select DEFAULT_SGI_PARTITION 676 select SYS_HAS_EARLY_PRINTK 677 select HAVE_PCI 678 select IRQ_MIPS_CPU 679 select NR_CPUS_DEFAULT_64 680 select SYS_HAS_CPU_R10000 681 select SYS_SUPPORTS_64BIT_KERNEL 682 select SYS_SUPPORTS_BIG_ENDIAN 683 select SYS_SUPPORTS_NUMA 684 select SYS_SUPPORTS_SMP 685 select MIPS_L1_CACHE_SHIFT_7 686 help 687 This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics 688 workstations. To compile a Linux kernel that runs on these, say Y 689 here. 690 691config SGI_IP28 692 bool "SGI IP28 (Indigo2 R10k)" 693 select FW_ARC 694 select FW_ARC64 695 select ARCH_MIGHT_HAVE_PC_SERIO 696 select BOOT_ELF64 697 select CEVT_R4K 698 select CSRC_R4K 699 select DEFAULT_SGI_PARTITION 700 select DMA_NONCOHERENT 701 select GENERIC_ISA_DMA_SUPPORT_BROKEN 702 select IRQ_MIPS_CPU 703 select HAVE_EISA 704 select I8253 705 select I8259 706 select SGI_HAS_I8042 707 select SGI_HAS_INDYDOG 708 select SGI_HAS_HAL2 709 select SGI_HAS_SEEQ 710 select SGI_HAS_WD93 711 select SGI_HAS_ZILOG 712 select SWAP_IO_SPACE 713 select SYS_HAS_CPU_R10000 714 # 715 # Disable EARLY_PRINTK for now since it leads to overwritten prom 716 # memory during early boot on some machines. 717 # 718 # See http://www.linux-mips.org/cgi-bin/mesg.cgi?a=linux-mips&i=20091119164009.GA15038%40deprecation.cyrius.com 719 # for a more details discussion 720 # 721 # select SYS_HAS_EARLY_PRINTK 722 select SYS_SUPPORTS_64BIT_KERNEL 723 select SYS_SUPPORTS_BIG_ENDIAN 724 select MIPS_L1_CACHE_SHIFT_7 725 help 726 This is the SGI Indigo2 with R10000 processor. To compile a Linux 727 kernel that runs on these, say Y here. 728 729config SGI_IP32 730 bool "SGI IP32 (O2)" 731 select ARCH_HAS_PHYS_TO_DMA 732 select FW_ARC 733 select FW_ARC32 734 select BOOT_ELF32 735 select CEVT_R4K 736 select CSRC_R4K 737 select DMA_NONCOHERENT 738 select HAVE_PCI 739 select IRQ_MIPS_CPU 740 select R5000_CPU_SCACHE 741 select RM7000_CPU_SCACHE 742 select SYS_HAS_CPU_R5000 743 select SYS_HAS_CPU_R10000 if BROKEN 744 select SYS_HAS_CPU_RM7000 745 select SYS_HAS_CPU_NEVADA 746 select SYS_SUPPORTS_64BIT_KERNEL 747 select SYS_SUPPORTS_BIG_ENDIAN 748 help 749 If you want this kernel to run on SGI O2 workstation, say Y here. 750 751config SIBYTE_CRHINE 752 bool "Sibyte BCM91120C-CRhine" 753 select BOOT_ELF32 754 select SIBYTE_BCM1120 755 select SWAP_IO_SPACE 756 select SYS_HAS_CPU_SB1 757 select SYS_SUPPORTS_BIG_ENDIAN 758 select SYS_SUPPORTS_LITTLE_ENDIAN 759 760config SIBYTE_CARMEL 761 bool "Sibyte BCM91120x-Carmel" 762 select BOOT_ELF32 763 select SIBYTE_BCM1120 764 select SWAP_IO_SPACE 765 select SYS_HAS_CPU_SB1 766 select SYS_SUPPORTS_BIG_ENDIAN 767 select SYS_SUPPORTS_LITTLE_ENDIAN 768 769config SIBYTE_CRHONE 770 bool "Sibyte BCM91125C-CRhone" 771 select BOOT_ELF32 772 select SIBYTE_BCM1125 773 select SWAP_IO_SPACE 774 select SYS_HAS_CPU_SB1 775 select SYS_SUPPORTS_BIG_ENDIAN 776 select SYS_SUPPORTS_HIGHMEM 777 select SYS_SUPPORTS_LITTLE_ENDIAN 778 779config SIBYTE_RHONE 780 bool "Sibyte BCM91125E-Rhone" 781 select BOOT_ELF32 782 select SIBYTE_BCM1125H 783 select SWAP_IO_SPACE 784 select SYS_HAS_CPU_SB1 785 select SYS_SUPPORTS_BIG_ENDIAN 786 select SYS_SUPPORTS_LITTLE_ENDIAN 787 788config SIBYTE_SWARM 789 bool "Sibyte BCM91250A-SWARM" 790 select BOOT_ELF32 791 select HAVE_PATA_PLATFORM 792 select SIBYTE_SB1250 793 select SWAP_IO_SPACE 794 select SYS_HAS_CPU_SB1 795 select SYS_SUPPORTS_BIG_ENDIAN 796 select SYS_SUPPORTS_HIGHMEM 797 select SYS_SUPPORTS_LITTLE_ENDIAN 798 select ZONE_DMA32 if 64BIT 799 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 800 801config SIBYTE_LITTLESUR 802 bool "Sibyte BCM91250C2-LittleSur" 803 select BOOT_ELF32 804 select HAVE_PATA_PLATFORM 805 select SIBYTE_SB1250 806 select SWAP_IO_SPACE 807 select SYS_HAS_CPU_SB1 808 select SYS_SUPPORTS_BIG_ENDIAN 809 select SYS_SUPPORTS_HIGHMEM 810 select SYS_SUPPORTS_LITTLE_ENDIAN 811 select ZONE_DMA32 if 64BIT 812 813config SIBYTE_SENTOSA 814 bool "Sibyte BCM91250E-Sentosa" 815 select BOOT_ELF32 816 select SIBYTE_SB1250 817 select SWAP_IO_SPACE 818 select SYS_HAS_CPU_SB1 819 select SYS_SUPPORTS_BIG_ENDIAN 820 select SYS_SUPPORTS_LITTLE_ENDIAN 821 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 822 823config SIBYTE_BIGSUR 824 bool "Sibyte BCM91480B-BigSur" 825 select BOOT_ELF32 826 select NR_CPUS_DEFAULT_4 827 select SIBYTE_BCM1x80 828 select SWAP_IO_SPACE 829 select SYS_HAS_CPU_SB1 830 select SYS_SUPPORTS_BIG_ENDIAN 831 select SYS_SUPPORTS_HIGHMEM 832 select SYS_SUPPORTS_LITTLE_ENDIAN 833 select ZONE_DMA32 if 64BIT 834 select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI 835 836config SNI_RM 837 bool "SNI RM200/300/400" 838 select FW_ARC if CPU_LITTLE_ENDIAN 839 select FW_ARC32 if CPU_LITTLE_ENDIAN 840 select FW_SNIPROM if CPU_BIG_ENDIAN 841 select ARCH_MAY_HAVE_PC_FDC 842 select ARCH_MIGHT_HAVE_PC_PARPORT 843 select ARCH_MIGHT_HAVE_PC_SERIO 844 select BOOT_ELF32 845 select CEVT_R4K 846 select CSRC_R4K 847 select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN 848 select DMA_NONCOHERENT 849 select GENERIC_ISA_DMA 850 select HAVE_EISA 851 select HAVE_PCSPKR_PLATFORM 852 select HAVE_PCI 853 select IRQ_MIPS_CPU 854 select I8253 855 select I8259 856 select ISA 857 select SWAP_IO_SPACE if CPU_BIG_ENDIAN 858 select SYS_HAS_CPU_R4X00 859 select SYS_HAS_CPU_R5000 860 select SYS_HAS_CPU_R10000 861 select R5000_CPU_SCACHE 862 select SYS_HAS_EARLY_PRINTK 863 select SYS_SUPPORTS_32BIT_KERNEL 864 select SYS_SUPPORTS_64BIT_KERNEL 865 select SYS_SUPPORTS_BIG_ENDIAN 866 select SYS_SUPPORTS_HIGHMEM 867 select SYS_SUPPORTS_LITTLE_ENDIAN 868 help 869 The SNI RM200/300/400 are MIPS-based machines manufactured by 870 Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid 871 Technology and now in turn merged with Fujitsu. Say Y here to 872 support this machine type. 873 874config MACH_TX39XX 875 bool "Toshiba TX39 series based machines" 876 877config MACH_TX49XX 878 bool "Toshiba TX49 series based machines" 879 880config MIKROTIK_RB532 881 bool "Mikrotik RB532 boards" 882 select CEVT_R4K 883 select CSRC_R4K 884 select DMA_NONCOHERENT 885 select HAVE_PCI 886 select IRQ_MIPS_CPU 887 select SYS_HAS_CPU_MIPS32_R1 888 select SYS_SUPPORTS_32BIT_KERNEL 889 select SYS_SUPPORTS_LITTLE_ENDIAN 890 select SWAP_IO_SPACE 891 select BOOT_RAW 892 select GPIOLIB 893 select MIPS_L1_CACHE_SHIFT_4 894 help 895 Support the Mikrotik(tm) RouterBoard 532 series, 896 based on the IDT RC32434 SoC. 897 898config CAVIUM_OCTEON_SOC 899 bool "Cavium Networks Octeon SoC based boards" 900 select CEVT_R4K 901 select ARCH_HAS_PHYS_TO_DMA 902 select HAVE_RAPIDIO 903 select PHYS_ADDR_T_64BIT 904 select SYS_SUPPORTS_64BIT_KERNEL 905 select SYS_SUPPORTS_BIG_ENDIAN 906 select EDAC_SUPPORT 907 select EDAC_ATOMIC_SCRUB 908 select SYS_SUPPORTS_LITTLE_ENDIAN 909 select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN 910 select SYS_HAS_EARLY_PRINTK 911 select SYS_HAS_CPU_CAVIUM_OCTEON 912 select HAVE_PCI 913 select ZONE_DMA32 914 select HOLES_IN_ZONE 915 select GPIOLIB 916 select LIBFDT 917 select USE_OF 918 select ARCH_SPARSEMEM_ENABLE 919 select SYS_SUPPORTS_SMP 920 select NR_CPUS_DEFAULT_64 921 select MIPS_NR_CPU_NR_MAP_1024 922 select BUILTIN_DTB 923 select MTD_COMPLEX_MAPPINGS 924 select SWIOTLB 925 select SYS_SUPPORTS_RELOCATABLE 926 help 927 This option supports all of the Octeon reference boards from Cavium 928 Networks. It builds a kernel that dynamically determines the Octeon 929 CPU type and supports all known board reference implementations. 930 Some of the supported boards are: 931 EBT3000 932 EBH3000 933 EBH3100 934 Thunder 935 Kodama 936 Hikari 937 Say Y here for most Octeon reference boards. 938 939config NLM_XLR_BOARD 940 bool "Netlogic XLR/XLS based systems" 941 select BOOT_ELF32 942 select NLM_COMMON 943 select SYS_HAS_CPU_XLR 944 select SYS_SUPPORTS_SMP 945 select HAVE_PCI 946 select SWAP_IO_SPACE 947 select SYS_SUPPORTS_32BIT_KERNEL 948 select SYS_SUPPORTS_64BIT_KERNEL 949 select PHYS_ADDR_T_64BIT 950 select SYS_SUPPORTS_BIG_ENDIAN 951 select SYS_SUPPORTS_HIGHMEM 952 select NR_CPUS_DEFAULT_32 953 select CEVT_R4K 954 select CSRC_R4K 955 select IRQ_MIPS_CPU 956 select ZONE_DMA32 if 64BIT 957 select SYNC_R4K 958 select SYS_HAS_EARLY_PRINTK 959 select SYS_SUPPORTS_ZBOOT 960 select SYS_SUPPORTS_ZBOOT_UART16550 961 help 962 Support for systems based on Netlogic XLR and XLS processors. 963 Say Y here if you have a XLR or XLS based board. 964 965config NLM_XLP_BOARD 966 bool "Netlogic XLP based systems" 967 select BOOT_ELF32 968 select NLM_COMMON 969 select SYS_HAS_CPU_XLP 970 select SYS_SUPPORTS_SMP 971 select HAVE_PCI 972 select SYS_SUPPORTS_32BIT_KERNEL 973 select SYS_SUPPORTS_64BIT_KERNEL 974 select PHYS_ADDR_T_64BIT 975 select GPIOLIB 976 select SYS_SUPPORTS_BIG_ENDIAN 977 select SYS_SUPPORTS_LITTLE_ENDIAN 978 select SYS_SUPPORTS_HIGHMEM 979 select NR_CPUS_DEFAULT_32 980 select CEVT_R4K 981 select CSRC_R4K 982 select IRQ_MIPS_CPU 983 select ZONE_DMA32 if 64BIT 984 select SYNC_R4K 985 select SYS_HAS_EARLY_PRINTK 986 select USE_OF 987 select SYS_SUPPORTS_ZBOOT 988 select SYS_SUPPORTS_ZBOOT_UART16550 989 help 990 This board is based on Netlogic XLP Processor. 991 Say Y here if you have a XLP based board. 992 993config MIPS_PARAVIRT 994 bool "Para-Virtualized guest system" 995 select CEVT_R4K 996 select CSRC_R4K 997 select SYS_SUPPORTS_64BIT_KERNEL 998 select SYS_SUPPORTS_32BIT_KERNEL 999 select SYS_SUPPORTS_BIG_ENDIAN 1000 select SYS_SUPPORTS_SMP 1001 select NR_CPUS_DEFAULT_4 1002 select SYS_HAS_EARLY_PRINTK 1003 select SYS_HAS_CPU_MIPS32_R2 1004 select SYS_HAS_CPU_MIPS64_R2 1005 select SYS_HAS_CPU_CAVIUM_OCTEON 1006 select HAVE_PCI 1007 select SWAP_IO_SPACE 1008 help 1009 This option supports guest running under ???? 1010 1011endchoice 1012 1013source "arch/mips/alchemy/Kconfig" 1014source "arch/mips/ath25/Kconfig" 1015source "arch/mips/ath79/Kconfig" 1016source "arch/mips/bcm47xx/Kconfig" 1017source "arch/mips/bcm63xx/Kconfig" 1018source "arch/mips/bmips/Kconfig" 1019source "arch/mips/generic/Kconfig" 1020source "arch/mips/jazz/Kconfig" 1021source "arch/mips/jz4740/Kconfig" 1022source "arch/mips/lantiq/Kconfig" 1023source "arch/mips/lasat/Kconfig" 1024source "arch/mips/pic32/Kconfig" 1025source "arch/mips/pistachio/Kconfig" 1026source "arch/mips/pmcs-msp71xx/Kconfig" 1027source "arch/mips/ralink/Kconfig" 1028source "arch/mips/sgi-ip27/Kconfig" 1029source "arch/mips/sibyte/Kconfig" 1030source "arch/mips/txx9/Kconfig" 1031source "arch/mips/vr41xx/Kconfig" 1032source "arch/mips/cavium-octeon/Kconfig" 1033source "arch/mips/loongson32/Kconfig" 1034source "arch/mips/loongson64/Kconfig" 1035source "arch/mips/netlogic/Kconfig" 1036source "arch/mips/paravirt/Kconfig" 1037 1038endmenu 1039 1040config RWSEM_GENERIC_SPINLOCK 1041 bool 1042 default y 1043 1044config RWSEM_XCHGADD_ALGORITHM 1045 bool 1046 1047config GENERIC_HWEIGHT 1048 bool 1049 default y 1050 1051config GENERIC_CALIBRATE_DELAY 1052 bool 1053 default y 1054 1055config SCHED_OMIT_FRAME_POINTER 1056 bool 1057 default y 1058 1059# 1060# Select some configuration options automatically based on user selections. 1061# 1062config FW_ARC 1063 bool 1064 1065config ARCH_MAY_HAVE_PC_FDC 1066 bool 1067 1068config BOOT_RAW 1069 bool 1070 1071config CEVT_BCM1480 1072 bool 1073 1074config CEVT_DS1287 1075 bool 1076 1077config CEVT_GT641XX 1078 bool 1079 1080config CEVT_R4K 1081 bool 1082 1083config CEVT_SB1250 1084 bool 1085 1086config CEVT_TXX9 1087 bool 1088 1089config CSRC_BCM1480 1090 bool 1091 1092config CSRC_IOASIC 1093 bool 1094 1095config CSRC_R4K 1096 bool 1097 1098config CSRC_SB1250 1099 bool 1100 1101config MIPS_CLOCK_VSYSCALL 1102 def_bool CSRC_R4K || CLKSRC_MIPS_GIC 1103 1104config GPIO_TXX9 1105 select GPIOLIB 1106 bool 1107 1108config FW_CFE 1109 bool 1110 1111config ARCH_SUPPORTS_UPROBES 1112 bool 1113 1114config DMA_MAYBE_COHERENT 1115 select ARCH_HAS_DMA_COHERENCE_H 1116 select DMA_NONCOHERENT 1117 bool 1118 1119config DMA_PERDEV_COHERENT 1120 bool 1121 select DMA_NONCOHERENT 1122 1123config DMA_NONCOHERENT 1124 bool 1125 select ARCH_HAS_DMA_MMAP_PGPROT 1126 select ARCH_HAS_SYNC_DMA_FOR_DEVICE 1127 select NEED_DMA_MAP_STATE 1128 select ARCH_HAS_DMA_COHERENT_TO_PFN 1129 select DMA_NONCOHERENT_CACHE_SYNC 1130 1131config SYS_HAS_EARLY_PRINTK 1132 bool 1133 1134config SYS_SUPPORTS_HOTPLUG_CPU 1135 bool 1136 1137config MIPS_BONITO64 1138 bool 1139 1140config MIPS_MSC 1141 bool 1142 1143config MIPS_NILE4 1144 bool 1145 1146config SYNC_R4K 1147 bool 1148 1149config MIPS_MACHINE 1150 def_bool n 1151 1152config NO_IOPORT_MAP 1153 def_bool n 1154 1155config GENERIC_CSUM 1156 bool 1157 default y if !CPU_HAS_LOAD_STORE_LR 1158 1159config GENERIC_ISA_DMA 1160 bool 1161 select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n 1162 select ISA_DMA_API 1163 1164config GENERIC_ISA_DMA_SUPPORT_BROKEN 1165 bool 1166 select GENERIC_ISA_DMA 1167 1168config ISA_DMA_API 1169 bool 1170 1171config HOLES_IN_ZONE 1172 bool 1173 1174config SYS_SUPPORTS_RELOCATABLE 1175 bool 1176 help 1177 Selected if the platform supports relocating the kernel. 1178 The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF 1179 to allow access to command line and entropy sources. 1180 1181config MIPS_CBPF_JIT 1182 def_bool y 1183 depends on BPF_JIT && HAVE_CBPF_JIT 1184 1185config MIPS_EBPF_JIT 1186 def_bool y 1187 depends on BPF_JIT && HAVE_EBPF_JIT 1188 1189 1190# 1191# Endianness selection. Sufficiently obscure so many users don't know what to 1192# answer,so we try hard to limit the available choices. Also the use of a 1193# choice statement should be more obvious to the user. 1194# 1195choice 1196 prompt "Endianness selection" 1197 help 1198 Some MIPS machines can be configured for either little or big endian 1199 byte order. These modes require different kernels and a different 1200 Linux distribution. In general there is one preferred byteorder for a 1201 particular system but some systems are just as commonly used in the 1202 one or the other endianness. 1203 1204config CPU_BIG_ENDIAN 1205 bool "Big endian" 1206 depends on SYS_SUPPORTS_BIG_ENDIAN 1207 1208config CPU_LITTLE_ENDIAN 1209 bool "Little endian" 1210 depends on SYS_SUPPORTS_LITTLE_ENDIAN 1211 1212endchoice 1213 1214config EXPORT_UASM 1215 bool 1216 1217config SYS_SUPPORTS_APM_EMULATION 1218 bool 1219 1220config SYS_SUPPORTS_BIG_ENDIAN 1221 bool 1222 1223config SYS_SUPPORTS_LITTLE_ENDIAN 1224 bool 1225 1226config SYS_SUPPORTS_HUGETLBFS 1227 bool 1228 depends on CPU_SUPPORTS_HUGEPAGES && 64BIT 1229 default y 1230 1231config MIPS_HUGE_TLB_SUPPORT 1232 def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE 1233 1234config IRQ_CPU_RM7K 1235 bool 1236 1237config IRQ_MSP_SLP 1238 bool 1239 1240config IRQ_MSP_CIC 1241 bool 1242 1243config IRQ_TXX9 1244 bool 1245 1246config IRQ_GT641XX 1247 bool 1248 1249config PCI_GT64XXX_PCI0 1250 bool 1251 1252config NO_EXCEPT_FILL 1253 bool 1254 1255config SOC_EMMA2RH 1256 bool 1257 select CEVT_R4K 1258 select CSRC_R4K 1259 select DMA_NONCOHERENT 1260 select IRQ_MIPS_CPU 1261 select SWAP_IO_SPACE 1262 select SYS_HAS_CPU_R5500 1263 select SYS_SUPPORTS_32BIT_KERNEL 1264 select SYS_SUPPORTS_64BIT_KERNEL 1265 select SYS_SUPPORTS_BIG_ENDIAN 1266 1267config SOC_PNX833X 1268 bool 1269 select CEVT_R4K 1270 select CSRC_R4K 1271 select IRQ_MIPS_CPU 1272 select DMA_NONCOHERENT 1273 select SYS_HAS_CPU_MIPS32_R2 1274 select SYS_SUPPORTS_32BIT_KERNEL 1275 select SYS_SUPPORTS_LITTLE_ENDIAN 1276 select SYS_SUPPORTS_BIG_ENDIAN 1277 select SYS_SUPPORTS_MIPS16 1278 select CPU_MIPSR2_IRQ_VI 1279 1280config SOC_PNX8335 1281 bool 1282 select SOC_PNX833X 1283 1284config MIPS_SPRAM 1285 bool 1286 1287config SWAP_IO_SPACE 1288 bool 1289 1290config SGI_HAS_INDYDOG 1291 bool 1292 1293config SGI_HAS_HAL2 1294 bool 1295 1296config SGI_HAS_SEEQ 1297 bool 1298 1299config SGI_HAS_WD93 1300 bool 1301 1302config SGI_HAS_ZILOG 1303 bool 1304 1305config SGI_HAS_I8042 1306 bool 1307 1308config DEFAULT_SGI_PARTITION 1309 bool 1310 1311config FW_ARC32 1312 bool 1313 1314config FW_SNIPROM 1315 bool 1316 1317config BOOT_ELF32 1318 bool 1319 1320config MIPS_L1_CACHE_SHIFT_4 1321 bool 1322 1323config MIPS_L1_CACHE_SHIFT_5 1324 bool 1325 1326config MIPS_L1_CACHE_SHIFT_6 1327 bool 1328 1329config MIPS_L1_CACHE_SHIFT_7 1330 bool 1331 1332config MIPS_L1_CACHE_SHIFT 1333 int 1334 default "7" if MIPS_L1_CACHE_SHIFT_7 1335 default "6" if MIPS_L1_CACHE_SHIFT_6 1336 default "5" if MIPS_L1_CACHE_SHIFT_5 1337 default "4" if MIPS_L1_CACHE_SHIFT_4 1338 default "5" 1339 1340config HAVE_STD_PC_SERIAL_PORT 1341 bool 1342 1343config ARC_CONSOLE 1344 bool "ARC console support" 1345 depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN) 1346 1347config ARC_MEMORY 1348 bool 1349 depends on MACH_JAZZ || SNI_RM || SGI_IP32 1350 default y 1351 1352config ARC_PROMLIB 1353 bool 1354 depends on MACH_JAZZ || SNI_RM || SGI_IP22 || SGI_IP28 || SGI_IP32 1355 default y 1356 1357config FW_ARC64 1358 bool 1359 1360config BOOT_ELF64 1361 bool 1362 1363menu "CPU selection" 1364 1365choice 1366 prompt "CPU type" 1367 default CPU_R4X00 1368 1369config CPU_LOONGSON3 1370 bool "Loongson 3 CPU" 1371 depends on SYS_HAS_CPU_LOONGSON3 1372 select ARCH_HAS_PHYS_TO_DMA 1373 select CPU_SUPPORTS_64BIT_KERNEL 1374 select CPU_SUPPORTS_HIGHMEM 1375 select CPU_SUPPORTS_HUGEPAGES 1376 select CPU_HAS_LOAD_STORE_LR 1377 select WEAK_ORDERING 1378 select WEAK_REORDERING_BEYOND_LLSC 1379 select MIPS_PGD_C0_CONTEXT 1380 select MIPS_L1_CACHE_SHIFT_6 1381 select GPIOLIB 1382 select SWIOTLB 1383 help 1384 The Loongson 3 processor implements the MIPS64R2 instruction 1385 set with many extensions. 1386 1387config LOONGSON3_ENHANCEMENT 1388 bool "New Loongson 3 CPU Enhancements" 1389 default n 1390 select CPU_MIPSR2 1391 select CPU_HAS_PREFETCH 1392 depends on CPU_LOONGSON3 1393 help 1394 New Loongson 3 CPU (since Loongson-3A R2, as opposed to Loongson-3A 1395 R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as 1396 FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPv2 ASE, User 1397 Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer), 1398 Fast TLB refill support, etc. 1399 1400 This option enable those enhancements which are not probed at run 1401 time. If you want a generic kernel to run on all Loongson 3 machines, 1402 please say 'N' here. If you want a high-performance kernel to run on 1403 new Loongson 3 machines only, please say 'Y' here. 1404 1405config CPU_LOONGSON3_WORKAROUNDS 1406 bool "Old Loongson 3 LLSC Workarounds" 1407 default y if SMP 1408 depends on CPU_LOONGSON3 1409 help 1410 Loongson 3 processors have the llsc issues which require workarounds. 1411 Without workarounds the system may hang unexpectedly. 1412 1413 Newer Loongson 3 will fix these issues and no workarounds are needed. 1414 The workarounds have no significant side effect on them but may 1415 decrease the performance of the system so this option should be 1416 disabled unless the kernel is intended to be run on old systems. 1417 1418 If unsure, please say Y. 1419 1420config CPU_LOONGSON2E 1421 bool "Loongson 2E" 1422 depends on SYS_HAS_CPU_LOONGSON2E 1423 select CPU_LOONGSON2 1424 help 1425 The Loongson 2E processor implements the MIPS III instruction set 1426 with many extensions. 1427 1428 It has an internal FPGA northbridge, which is compatible to 1429 bonito64. 1430 1431config CPU_LOONGSON2F 1432 bool "Loongson 2F" 1433 depends on SYS_HAS_CPU_LOONGSON2F 1434 select CPU_LOONGSON2 1435 select GPIOLIB 1436 help 1437 The Loongson 2F processor implements the MIPS III instruction set 1438 with many extensions. 1439 1440 Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller 1441 have a similar programming interface with FPGA northbridge used in 1442 Loongson2E. 1443 1444config CPU_LOONGSON1B 1445 bool "Loongson 1B" 1446 depends on SYS_HAS_CPU_LOONGSON1B 1447 select CPU_LOONGSON1 1448 select LEDS_GPIO_REGISTER 1449 help 1450 The Loongson 1B is a 32-bit SoC, which implements the MIPS32 1451 Release 1 instruction set and part of the MIPS32 Release 2 1452 instruction set. 1453 1454config CPU_LOONGSON1C 1455 bool "Loongson 1C" 1456 depends on SYS_HAS_CPU_LOONGSON1C 1457 select CPU_LOONGSON1 1458 select LEDS_GPIO_REGISTER 1459 help 1460 The Loongson 1C is a 32-bit SoC, which implements the MIPS32 1461 Release 1 instruction set and part of the MIPS32 Release 2 1462 instruction set. 1463 1464config CPU_MIPS32_R1 1465 bool "MIPS32 Release 1" 1466 depends on SYS_HAS_CPU_MIPS32_R1 1467 select CPU_HAS_PREFETCH 1468 select CPU_HAS_LOAD_STORE_LR 1469 select CPU_SUPPORTS_32BIT_KERNEL 1470 select CPU_SUPPORTS_HIGHMEM 1471 help 1472 Choose this option to build a kernel for release 1 or later of the 1473 MIPS32 architecture. Most modern embedded systems with a 32-bit 1474 MIPS processor are based on a MIPS32 processor. If you know the 1475 specific type of processor in your system, choose those that one 1476 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1477 Release 2 of the MIPS32 architecture is available since several 1478 years so chances are you even have a MIPS32 Release 2 processor 1479 in which case you should choose CPU_MIPS32_R2 instead for better 1480 performance. 1481 1482config CPU_MIPS32_R2 1483 bool "MIPS32 Release 2" 1484 depends on SYS_HAS_CPU_MIPS32_R2 1485 select CPU_HAS_PREFETCH 1486 select CPU_HAS_LOAD_STORE_LR 1487 select CPU_SUPPORTS_32BIT_KERNEL 1488 select CPU_SUPPORTS_HIGHMEM 1489 select CPU_SUPPORTS_MSA 1490 select HAVE_KVM 1491 help 1492 Choose this option to build a kernel for release 2 or later of the 1493 MIPS32 architecture. Most modern embedded systems with a 32-bit 1494 MIPS processor are based on a MIPS32 processor. If you know the 1495 specific type of processor in your system, choose those that one 1496 otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system. 1497 1498config CPU_MIPS32_R6 1499 bool "MIPS32 Release 6" 1500 depends on SYS_HAS_CPU_MIPS32_R6 1501 select CPU_HAS_PREFETCH 1502 select CPU_SUPPORTS_32BIT_KERNEL 1503 select CPU_SUPPORTS_HIGHMEM 1504 select CPU_SUPPORTS_MSA 1505 select HAVE_KVM 1506 select MIPS_O32_FP64_SUPPORT 1507 help 1508 Choose this option to build a kernel for release 6 or later of the 1509 MIPS32 architecture. New MIPS processors, starting with the Warrior 1510 family, are based on a MIPS32r6 processor. If you own an older 1511 processor, you probably need to select MIPS32r1 or MIPS32r2 instead. 1512 1513config CPU_MIPS64_R1 1514 bool "MIPS64 Release 1" 1515 depends on SYS_HAS_CPU_MIPS64_R1 1516 select CPU_HAS_PREFETCH 1517 select CPU_HAS_LOAD_STORE_LR 1518 select CPU_SUPPORTS_32BIT_KERNEL 1519 select CPU_SUPPORTS_64BIT_KERNEL 1520 select CPU_SUPPORTS_HIGHMEM 1521 select CPU_SUPPORTS_HUGEPAGES 1522 help 1523 Choose this option to build a kernel for release 1 or later of the 1524 MIPS64 architecture. Many modern embedded systems with a 64-bit 1525 MIPS processor are based on a MIPS64 processor. If you know the 1526 specific type of processor in your system, choose those that one 1527 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1528 Release 2 of the MIPS64 architecture is available since several 1529 years so chances are you even have a MIPS64 Release 2 processor 1530 in which case you should choose CPU_MIPS64_R2 instead for better 1531 performance. 1532 1533config CPU_MIPS64_R2 1534 bool "MIPS64 Release 2" 1535 depends on SYS_HAS_CPU_MIPS64_R2 1536 select CPU_HAS_PREFETCH 1537 select CPU_HAS_LOAD_STORE_LR 1538 select CPU_SUPPORTS_32BIT_KERNEL 1539 select CPU_SUPPORTS_64BIT_KERNEL 1540 select CPU_SUPPORTS_HIGHMEM 1541 select CPU_SUPPORTS_HUGEPAGES 1542 select CPU_SUPPORTS_MSA 1543 select HAVE_KVM 1544 help 1545 Choose this option to build a kernel for release 2 or later of the 1546 MIPS64 architecture. Many modern embedded systems with a 64-bit 1547 MIPS processor are based on a MIPS64 processor. If you know the 1548 specific type of processor in your system, choose those that one 1549 otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system. 1550 1551config CPU_MIPS64_R6 1552 bool "MIPS64 Release 6" 1553 depends on SYS_HAS_CPU_MIPS64_R6 1554 select CPU_HAS_PREFETCH 1555 select CPU_SUPPORTS_32BIT_KERNEL 1556 select CPU_SUPPORTS_64BIT_KERNEL 1557 select CPU_SUPPORTS_HIGHMEM 1558 select CPU_SUPPORTS_HUGEPAGES 1559 select CPU_SUPPORTS_MSA 1560 select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32 1561 select HAVE_KVM 1562 help 1563 Choose this option to build a kernel for release 6 or later of the 1564 MIPS64 architecture. New MIPS processors, starting with the Warrior 1565 family, are based on a MIPS64r6 processor. If you own an older 1566 processor, you probably need to select MIPS64r1 or MIPS64r2 instead. 1567 1568config CPU_R3000 1569 bool "R3000" 1570 depends on SYS_HAS_CPU_R3000 1571 select CPU_HAS_WB 1572 select CPU_HAS_LOAD_STORE_LR 1573 select CPU_SUPPORTS_32BIT_KERNEL 1574 select CPU_SUPPORTS_HIGHMEM 1575 help 1576 Please make sure to pick the right CPU type. Linux/MIPS is not 1577 designed to be generic, i.e. Kernels compiled for R3000 CPUs will 1578 *not* work on R4000 machines and vice versa. However, since most 1579 of the supported machines have an R4000 (or similar) CPU, R4x00 1580 might be a safe bet. If the resulting kernel does not work, 1581 try to recompile with R3000. 1582 1583config CPU_TX39XX 1584 bool "R39XX" 1585 depends on SYS_HAS_CPU_TX39XX 1586 select CPU_SUPPORTS_32BIT_KERNEL 1587 select CPU_HAS_LOAD_STORE_LR 1588 1589config CPU_VR41XX 1590 bool "R41xx" 1591 depends on SYS_HAS_CPU_VR41XX 1592 select CPU_SUPPORTS_32BIT_KERNEL 1593 select CPU_SUPPORTS_64BIT_KERNEL 1594 select CPU_HAS_LOAD_STORE_LR 1595 help 1596 The options selects support for the NEC VR4100 series of processors. 1597 Only choose this option if you have one of these processors as a 1598 kernel built with this option will not run on any other type of 1599 processor or vice versa. 1600 1601config CPU_R4300 1602 bool "R4300" 1603 depends on SYS_HAS_CPU_R4300 1604 select CPU_SUPPORTS_32BIT_KERNEL 1605 select CPU_SUPPORTS_64BIT_KERNEL 1606 select CPU_HAS_LOAD_STORE_LR 1607 help 1608 MIPS Technologies R4300-series processors. 1609 1610config CPU_R4X00 1611 bool "R4x00" 1612 depends on SYS_HAS_CPU_R4X00 1613 select CPU_SUPPORTS_32BIT_KERNEL 1614 select CPU_SUPPORTS_64BIT_KERNEL 1615 select CPU_SUPPORTS_HUGEPAGES 1616 select CPU_HAS_LOAD_STORE_LR 1617 help 1618 MIPS Technologies R4000-series processors other than 4300, including 1619 the R4000, R4400, R4600, and 4700. 1620 1621config CPU_TX49XX 1622 bool "R49XX" 1623 depends on SYS_HAS_CPU_TX49XX 1624 select CPU_HAS_PREFETCH 1625 select CPU_HAS_LOAD_STORE_LR 1626 select CPU_SUPPORTS_32BIT_KERNEL 1627 select CPU_SUPPORTS_64BIT_KERNEL 1628 select CPU_SUPPORTS_HUGEPAGES 1629 1630config CPU_R5000 1631 bool "R5000" 1632 depends on SYS_HAS_CPU_R5000 1633 select CPU_SUPPORTS_32BIT_KERNEL 1634 select CPU_SUPPORTS_64BIT_KERNEL 1635 select CPU_SUPPORTS_HUGEPAGES 1636 select CPU_HAS_LOAD_STORE_LR 1637 help 1638 MIPS Technologies R5000-series processors other than the Nevada. 1639 1640config CPU_R5432 1641 bool "R5432" 1642 depends on SYS_HAS_CPU_R5432 1643 select CPU_SUPPORTS_32BIT_KERNEL 1644 select CPU_SUPPORTS_64BIT_KERNEL 1645 select CPU_SUPPORTS_HUGEPAGES 1646 select CPU_HAS_LOAD_STORE_LR 1647 1648config CPU_R5500 1649 bool "R5500" 1650 depends on SYS_HAS_CPU_R5500 1651 select CPU_SUPPORTS_32BIT_KERNEL 1652 select CPU_SUPPORTS_64BIT_KERNEL 1653 select CPU_SUPPORTS_HUGEPAGES 1654 select CPU_HAS_LOAD_STORE_LR 1655 help 1656 NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV 1657 instruction set. 1658 1659config CPU_NEVADA 1660 bool "RM52xx" 1661 depends on SYS_HAS_CPU_NEVADA 1662 select CPU_SUPPORTS_32BIT_KERNEL 1663 select CPU_SUPPORTS_64BIT_KERNEL 1664 select CPU_SUPPORTS_HUGEPAGES 1665 select CPU_HAS_LOAD_STORE_LR 1666 help 1667 QED / PMC-Sierra RM52xx-series ("Nevada") processors. 1668 1669config CPU_R8000 1670 bool "R8000" 1671 depends on SYS_HAS_CPU_R8000 1672 select CPU_HAS_PREFETCH 1673 select CPU_HAS_LOAD_STORE_LR 1674 select CPU_SUPPORTS_64BIT_KERNEL 1675 help 1676 MIPS Technologies R8000 processors. Note these processors are 1677 uncommon and the support for them is incomplete. 1678 1679config CPU_R10000 1680 bool "R10000" 1681 depends on SYS_HAS_CPU_R10000 1682 select CPU_HAS_PREFETCH 1683 select CPU_HAS_LOAD_STORE_LR 1684 select CPU_SUPPORTS_32BIT_KERNEL 1685 select CPU_SUPPORTS_64BIT_KERNEL 1686 select CPU_SUPPORTS_HIGHMEM 1687 select CPU_SUPPORTS_HUGEPAGES 1688 help 1689 MIPS Technologies R10000-series processors. 1690 1691config CPU_RM7000 1692 bool "RM7000" 1693 depends on SYS_HAS_CPU_RM7000 1694 select CPU_HAS_PREFETCH 1695 select CPU_HAS_LOAD_STORE_LR 1696 select CPU_SUPPORTS_32BIT_KERNEL 1697 select CPU_SUPPORTS_64BIT_KERNEL 1698 select CPU_SUPPORTS_HIGHMEM 1699 select CPU_SUPPORTS_HUGEPAGES 1700 1701config CPU_SB1 1702 bool "SB1" 1703 depends on SYS_HAS_CPU_SB1 1704 select CPU_HAS_LOAD_STORE_LR 1705 select CPU_SUPPORTS_32BIT_KERNEL 1706 select CPU_SUPPORTS_64BIT_KERNEL 1707 select CPU_SUPPORTS_HIGHMEM 1708 select CPU_SUPPORTS_HUGEPAGES 1709 select WEAK_ORDERING 1710 1711config CPU_CAVIUM_OCTEON 1712 bool "Cavium Octeon processor" 1713 depends on SYS_HAS_CPU_CAVIUM_OCTEON 1714 select CPU_HAS_PREFETCH 1715 select CPU_HAS_LOAD_STORE_LR 1716 select CPU_SUPPORTS_64BIT_KERNEL 1717 select WEAK_ORDERING 1718 select CPU_SUPPORTS_HIGHMEM 1719 select CPU_SUPPORTS_HUGEPAGES 1720 select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1721 select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN 1722 select MIPS_L1_CACHE_SHIFT_7 1723 select HAVE_KVM 1724 help 1725 The Cavium Octeon processor is a highly integrated chip containing 1726 many ethernet hardware widgets for networking tasks. The processor 1727 can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets. 1728 Full details can be found at http://www.caviumnetworks.com. 1729 1730config CPU_BMIPS 1731 bool "Broadcom BMIPS" 1732 depends on SYS_HAS_CPU_BMIPS 1733 select CPU_MIPS32 1734 select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300 1735 select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350 1736 select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380 1737 select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000 1738 select CPU_SUPPORTS_32BIT_KERNEL 1739 select DMA_NONCOHERENT 1740 select IRQ_MIPS_CPU 1741 select SWAP_IO_SPACE 1742 select WEAK_ORDERING 1743 select CPU_SUPPORTS_HIGHMEM 1744 select CPU_HAS_PREFETCH 1745 select CPU_HAS_LOAD_STORE_LR 1746 select CPU_SUPPORTS_CPUFREQ 1747 select MIPS_EXTERNAL_TIMER 1748 help 1749 Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors. 1750 1751config CPU_XLR 1752 bool "Netlogic XLR SoC" 1753 depends on SYS_HAS_CPU_XLR 1754 select CPU_HAS_LOAD_STORE_LR 1755 select CPU_SUPPORTS_32BIT_KERNEL 1756 select CPU_SUPPORTS_64BIT_KERNEL 1757 select CPU_SUPPORTS_HIGHMEM 1758 select CPU_SUPPORTS_HUGEPAGES 1759 select WEAK_ORDERING 1760 select WEAK_REORDERING_BEYOND_LLSC 1761 help 1762 Netlogic Microsystems XLR/XLS processors. 1763 1764config CPU_XLP 1765 bool "Netlogic XLP SoC" 1766 depends on SYS_HAS_CPU_XLP 1767 select CPU_SUPPORTS_32BIT_KERNEL 1768 select CPU_SUPPORTS_64BIT_KERNEL 1769 select CPU_SUPPORTS_HIGHMEM 1770 select WEAK_ORDERING 1771 select WEAK_REORDERING_BEYOND_LLSC 1772 select CPU_HAS_PREFETCH 1773 select CPU_HAS_LOAD_STORE_LR 1774 select CPU_MIPSR2 1775 select CPU_SUPPORTS_HUGEPAGES 1776 select MIPS_ASID_BITS_VARIABLE 1777 help 1778 Netlogic Microsystems XLP processors. 1779endchoice 1780 1781config CPU_MIPS32_3_5_FEATURES 1782 bool "MIPS32 Release 3.5 Features" 1783 depends on SYS_HAS_CPU_MIPS32_R3_5 1784 depends on CPU_MIPS32_R2 || CPU_MIPS32_R6 1785 help 1786 Choose this option to build a kernel for release 2 or later of the 1787 MIPS32 architecture including features from the 3.5 release such as 1788 support for Enhanced Virtual Addressing (EVA). 1789 1790config CPU_MIPS32_3_5_EVA 1791 bool "Enhanced Virtual Addressing (EVA)" 1792 depends on CPU_MIPS32_3_5_FEATURES 1793 select EVA 1794 default y 1795 help 1796 Choose this option if you want to enable the Enhanced Virtual 1797 Addressing (EVA) on your MIPS32 core (such as proAptiv). 1798 One of its primary benefits is an increase in the maximum size 1799 of lowmem (up to 3GB). If unsure, say 'N' here. 1800 1801config CPU_MIPS32_R5_FEATURES 1802 bool "MIPS32 Release 5 Features" 1803 depends on SYS_HAS_CPU_MIPS32_R5 1804 depends on CPU_MIPS32_R2 1805 help 1806 Choose this option to build a kernel for release 2 or later of the 1807 MIPS32 architecture including features from release 5 such as 1808 support for Extended Physical Addressing (XPA). 1809 1810config CPU_MIPS32_R5_XPA 1811 bool "Extended Physical Addressing (XPA)" 1812 depends on CPU_MIPS32_R5_FEATURES 1813 depends on !EVA 1814 depends on !PAGE_SIZE_4KB 1815 depends on SYS_SUPPORTS_HIGHMEM 1816 select XPA 1817 select HIGHMEM 1818 select PHYS_ADDR_T_64BIT 1819 default n 1820 help 1821 Choose this option if you want to enable the Extended Physical 1822 Addressing (XPA) on your MIPS32 core (such as P5600 series). The 1823 benefit is to increase physical addressing equal to or greater 1824 than 40 bits. Note that this has the side effect of turning on 1825 64-bit addressing which in turn makes the PTEs 64-bit in size. 1826 If unsure, say 'N' here. 1827 1828if CPU_LOONGSON2F 1829config CPU_NOP_WORKAROUNDS 1830 bool 1831 1832config CPU_JUMP_WORKAROUNDS 1833 bool 1834 1835config CPU_LOONGSON2F_WORKAROUNDS 1836 bool "Loongson 2F Workarounds" 1837 default y 1838 select CPU_NOP_WORKAROUNDS 1839 select CPU_JUMP_WORKAROUNDS 1840 help 1841 Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which 1842 require workarounds. Without workarounds the system may hang 1843 unexpectedly. For more information please refer to the gas 1844 -mfix-loongson2f-nop and -mfix-loongson2f-jump options. 1845 1846 Loongson 2F03 and later have fixed these issues and no workarounds 1847 are needed. The workarounds have no significant side effect on them 1848 but may decrease the performance of the system so this option should 1849 be disabled unless the kernel is intended to be run on 2F01 or 2F02 1850 systems. 1851 1852 If unsure, please say Y. 1853endif # CPU_LOONGSON2F 1854 1855config SYS_SUPPORTS_ZBOOT 1856 bool 1857 select HAVE_KERNEL_GZIP 1858 select HAVE_KERNEL_BZIP2 1859 select HAVE_KERNEL_LZ4 1860 select HAVE_KERNEL_LZMA 1861 select HAVE_KERNEL_LZO 1862 select HAVE_KERNEL_XZ 1863 1864config SYS_SUPPORTS_ZBOOT_UART16550 1865 bool 1866 select SYS_SUPPORTS_ZBOOT 1867 1868config SYS_SUPPORTS_ZBOOT_UART_PROM 1869 bool 1870 select SYS_SUPPORTS_ZBOOT 1871 1872config CPU_LOONGSON2 1873 bool 1874 select CPU_SUPPORTS_32BIT_KERNEL 1875 select CPU_SUPPORTS_64BIT_KERNEL 1876 select CPU_SUPPORTS_HIGHMEM 1877 select CPU_SUPPORTS_HUGEPAGES 1878 select ARCH_HAS_PHYS_TO_DMA 1879 select CPU_HAS_LOAD_STORE_LR 1880 1881config CPU_LOONGSON1 1882 bool 1883 select CPU_MIPS32 1884 select CPU_MIPSR2 1885 select CPU_HAS_PREFETCH 1886 select CPU_HAS_LOAD_STORE_LR 1887 select CPU_SUPPORTS_32BIT_KERNEL 1888 select CPU_SUPPORTS_HIGHMEM 1889 select CPU_SUPPORTS_CPUFREQ 1890 1891config CPU_BMIPS32_3300 1892 select SMP_UP if SMP 1893 bool 1894 1895config CPU_BMIPS4350 1896 bool 1897 select SYS_SUPPORTS_SMP 1898 select SYS_SUPPORTS_HOTPLUG_CPU 1899 1900config CPU_BMIPS4380 1901 bool 1902 select MIPS_L1_CACHE_SHIFT_6 1903 select SYS_SUPPORTS_SMP 1904 select SYS_SUPPORTS_HOTPLUG_CPU 1905 select CPU_HAS_RIXI 1906 1907config CPU_BMIPS5000 1908 bool 1909 select MIPS_CPU_SCACHE 1910 select MIPS_L1_CACHE_SHIFT_7 1911 select SYS_SUPPORTS_SMP 1912 select SYS_SUPPORTS_HOTPLUG_CPU 1913 select CPU_HAS_RIXI 1914 1915config SYS_HAS_CPU_LOONGSON3 1916 bool 1917 select CPU_SUPPORTS_CPUFREQ 1918 select CPU_HAS_RIXI 1919 1920config SYS_HAS_CPU_LOONGSON2E 1921 bool 1922 1923config SYS_HAS_CPU_LOONGSON2F 1924 bool 1925 select CPU_SUPPORTS_CPUFREQ 1926 select CPU_SUPPORTS_ADDRWINCFG if 64BIT 1927 select CPU_SUPPORTS_UNCACHED_ACCELERATED 1928 1929config SYS_HAS_CPU_LOONGSON1B 1930 bool 1931 1932config SYS_HAS_CPU_LOONGSON1C 1933 bool 1934 1935config SYS_HAS_CPU_MIPS32_R1 1936 bool 1937 1938config SYS_HAS_CPU_MIPS32_R2 1939 bool 1940 1941config SYS_HAS_CPU_MIPS32_R3_5 1942 bool 1943 1944config SYS_HAS_CPU_MIPS32_R5 1945 bool 1946 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1947 1948config SYS_HAS_CPU_MIPS32_R6 1949 bool 1950 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1951 1952config SYS_HAS_CPU_MIPS64_R1 1953 bool 1954 1955config SYS_HAS_CPU_MIPS64_R2 1956 bool 1957 1958config SYS_HAS_CPU_MIPS64_R6 1959 bool 1960 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1961 1962config SYS_HAS_CPU_R3000 1963 bool 1964 1965config SYS_HAS_CPU_TX39XX 1966 bool 1967 1968config SYS_HAS_CPU_VR41XX 1969 bool 1970 1971config SYS_HAS_CPU_R4300 1972 bool 1973 1974config SYS_HAS_CPU_R4X00 1975 bool 1976 1977config SYS_HAS_CPU_TX49XX 1978 bool 1979 1980config SYS_HAS_CPU_R5000 1981 bool 1982 1983config SYS_HAS_CPU_R5432 1984 bool 1985 1986config SYS_HAS_CPU_R5500 1987 bool 1988 1989config SYS_HAS_CPU_NEVADA 1990 bool 1991 1992config SYS_HAS_CPU_R8000 1993 bool 1994 1995config SYS_HAS_CPU_R10000 1996 bool 1997 select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT 1998 1999config SYS_HAS_CPU_RM7000 2000 bool 2001 2002config SYS_HAS_CPU_SB1 2003 bool 2004 2005config SYS_HAS_CPU_CAVIUM_OCTEON 2006 bool 2007 2008config SYS_HAS_CPU_BMIPS 2009 bool 2010 2011config SYS_HAS_CPU_BMIPS32_3300 2012 bool 2013 select SYS_HAS_CPU_BMIPS 2014 2015config SYS_HAS_CPU_BMIPS4350 2016 bool 2017 select SYS_HAS_CPU_BMIPS 2018 2019config SYS_HAS_CPU_BMIPS4380 2020 bool 2021 select SYS_HAS_CPU_BMIPS 2022 2023config SYS_HAS_CPU_BMIPS5000 2024 bool 2025 select SYS_HAS_CPU_BMIPS 2026 select ARCH_HAS_SYNC_DMA_FOR_CPU 2027 2028config SYS_HAS_CPU_XLR 2029 bool 2030 2031config SYS_HAS_CPU_XLP 2032 bool 2033 2034# 2035# CPU may reorder R->R, R->W, W->R, W->W 2036# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC 2037# 2038config WEAK_ORDERING 2039 bool 2040 2041# 2042# CPU may reorder reads and writes beyond LL/SC 2043# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC 2044# 2045config WEAK_REORDERING_BEYOND_LLSC 2046 bool 2047endmenu 2048 2049# 2050# These two indicate any level of the MIPS32 and MIPS64 architecture 2051# 2052config CPU_MIPS32 2053 bool 2054 default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R6 2055 2056config CPU_MIPS64 2057 bool 2058 default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R6 2059 2060# 2061# These indicate the revision of the architecture 2062# 2063config CPU_MIPSR1 2064 bool 2065 default y if CPU_MIPS32_R1 || CPU_MIPS64_R1 2066 2067config CPU_MIPSR2 2068 bool 2069 default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON 2070 select CPU_HAS_RIXI 2071 select MIPS_SPRAM 2072 2073config CPU_MIPSR6 2074 bool 2075 default y if CPU_MIPS32_R6 || CPU_MIPS64_R6 2076 select CPU_HAS_RIXI 2077 select HAVE_ARCH_BITREVERSE 2078 select MIPS_ASID_BITS_VARIABLE 2079 select MIPS_CRC_SUPPORT 2080 select MIPS_SPRAM 2081 2082config TARGET_ISA_REV 2083 int 2084 default 1 if CPU_MIPSR1 2085 default 2 if CPU_MIPSR2 2086 default 6 if CPU_MIPSR6 2087 default 0 2088 help 2089 Reflects the ISA revision being targeted by the kernel build. This 2090 is effectively the Kconfig equivalent of MIPS_ISA_REV. 2091 2092config EVA 2093 bool 2094 2095config XPA 2096 bool 2097 2098config SYS_SUPPORTS_32BIT_KERNEL 2099 bool 2100config SYS_SUPPORTS_64BIT_KERNEL 2101 bool 2102config CPU_SUPPORTS_32BIT_KERNEL 2103 bool 2104config CPU_SUPPORTS_64BIT_KERNEL 2105 bool 2106config CPU_SUPPORTS_CPUFREQ 2107 bool 2108config CPU_SUPPORTS_ADDRWINCFG 2109 bool 2110config CPU_SUPPORTS_HUGEPAGES 2111 bool 2112config CPU_SUPPORTS_UNCACHED_ACCELERATED 2113 bool 2114config MIPS_PGD_C0_CONTEXT 2115 bool 2116 default y if 64BIT && (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP 2117 2118# 2119# Set to y for ptrace access to watch registers. 2120# 2121config HARDWARE_WATCHPOINTS 2122 bool 2123 default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6 2124 2125menu "Kernel type" 2126 2127choice 2128 prompt "Kernel code model" 2129 help 2130 You should only select this option if you have a workload that 2131 actually benefits from 64-bit processing or if your machine has 2132 large memory. You will only be presented a single option in this 2133 menu if your system does not support both 32-bit and 64-bit kernels. 2134 2135config 32BIT 2136 bool "32-bit kernel" 2137 depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL 2138 select TRAD_SIGNALS 2139 help 2140 Select this option if you want to build a 32-bit kernel. 2141 2142config 64BIT 2143 bool "64-bit kernel" 2144 depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL 2145 help 2146 Select this option if you want to build a 64-bit kernel. 2147 2148endchoice 2149 2150config KVM_GUEST 2151 bool "KVM Guest Kernel" 2152 depends on BROKEN_ON_SMP 2153 help 2154 Select this option if building a guest kernel for KVM (Trap & Emulate) 2155 mode. 2156 2157config KVM_GUEST_TIMER_FREQ 2158 int "Count/Compare Timer Frequency (MHz)" 2159 depends on KVM_GUEST 2160 default 100 2161 help 2162 Set this to non-zero if building a guest kernel for KVM to skip RTC 2163 emulation when determining guest CPU Frequency. Instead, the guest's 2164 timer frequency is specified directly. 2165 2166config MIPS_VA_BITS_48 2167 bool "48 bits virtual memory" 2168 depends on 64BIT 2169 help 2170 Support a maximum at least 48 bits of application virtual 2171 memory. Default is 40 bits or less, depending on the CPU. 2172 For page sizes 16k and above, this option results in a small 2173 memory overhead for page tables. For 4k page size, a fourth 2174 level of page tables is added which imposes both a memory 2175 overhead as well as slower TLB fault handling. 2176 2177 If unsure, say N. 2178 2179choice 2180 prompt "Kernel page size" 2181 default PAGE_SIZE_4KB 2182 2183config PAGE_SIZE_4KB 2184 bool "4kB" 2185 depends on !CPU_LOONGSON2 && !CPU_LOONGSON3 2186 help 2187 This option select the standard 4kB Linux page size. On some 2188 R3000-family processors this is the only available page size. Using 2189 4kB page size will minimize memory consumption and is therefore 2190 recommended for low memory systems. 2191 2192config PAGE_SIZE_8KB 2193 bool "8kB" 2194 depends on CPU_R8000 || CPU_CAVIUM_OCTEON 2195 depends on !MIPS_VA_BITS_48 2196 help 2197 Using 8kB page size will result in higher performance kernel at 2198 the price of higher memory consumption. This option is available 2199 only on R8000 and cnMIPS processors. Note that you will need a 2200 suitable Linux distribution to support this. 2201 2202config PAGE_SIZE_16KB 2203 bool "16kB" 2204 depends on !CPU_R3000 && !CPU_TX39XX 2205 help 2206 Using 16kB page size will result in higher performance kernel at 2207 the price of higher memory consumption. This option is available on 2208 all non-R3000 family processors. Note that you will need a suitable 2209 Linux distribution to support this. 2210 2211config PAGE_SIZE_32KB 2212 bool "32kB" 2213 depends on CPU_CAVIUM_OCTEON 2214 depends on !MIPS_VA_BITS_48 2215 help 2216 Using 32kB page size will result in higher performance kernel at 2217 the price of higher memory consumption. This option is available 2218 only on cnMIPS cores. Note that you will need a suitable Linux 2219 distribution to support this. 2220 2221config PAGE_SIZE_64KB 2222 bool "64kB" 2223 depends on !CPU_R3000 && !CPU_TX39XX 2224 help 2225 Using 64kB page size will result in higher performance kernel at 2226 the price of higher memory consumption. This option is available on 2227 all non-R3000 family processor. Not that at the time of this 2228 writing this option is still high experimental. 2229 2230endchoice 2231 2232config FORCE_MAX_ZONEORDER 2233 int "Maximum zone order" 2234 range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2235 default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB 2236 range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2237 default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB 2238 range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2239 default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB 2240 range 11 64 2241 default "11" 2242 help 2243 The kernel memory allocator divides physically contiguous memory 2244 blocks into "zones", where each zone is a power of two number of 2245 pages. This option selects the largest power of two that the kernel 2246 keeps in the memory allocator. If you need to allocate very large 2247 blocks of physically contiguous memory, then you may need to 2248 increase this value. 2249 2250 This config option is actually maximum order plus one. For example, 2251 a value of 11 means that the largest free memory block is 2^10 pages. 2252 2253 The page size is not necessarily 4KB. Keep this in mind 2254 when choosing a value for this option. 2255 2256config BOARD_SCACHE 2257 bool 2258 2259config IP22_CPU_SCACHE 2260 bool 2261 select BOARD_SCACHE 2262 2263# 2264# Support for a MIPS32 / MIPS64 style S-caches 2265# 2266config MIPS_CPU_SCACHE 2267 bool 2268 select BOARD_SCACHE 2269 2270config R5000_CPU_SCACHE 2271 bool 2272 select BOARD_SCACHE 2273 2274config RM7000_CPU_SCACHE 2275 bool 2276 select BOARD_SCACHE 2277 2278config SIBYTE_DMA_PAGEOPS 2279 bool "Use DMA to clear/copy pages" 2280 depends on CPU_SB1 2281 help 2282 Instead of using the CPU to zero and copy pages, use a Data Mover 2283 channel. These DMA channels are otherwise unused by the standard 2284 SiByte Linux port. Seems to give a small performance benefit. 2285 2286config CPU_HAS_PREFETCH 2287 bool 2288 2289config CPU_GENERIC_DUMP_TLB 2290 bool 2291 default y if !(CPU_R3000 || CPU_R8000 || CPU_TX39XX) 2292 2293config MIPS_FP_SUPPORT 2294 bool "Floating Point support" if EXPERT 2295 default y 2296 help 2297 Select y to include support for floating point in the kernel 2298 including initialization of FPU hardware, FP context save & restore 2299 and emulation of an FPU where necessary. Without this support any 2300 userland program attempting to use floating point instructions will 2301 receive a SIGILL. 2302 2303 If you know that your userland will not attempt to use floating point 2304 instructions then you can say n here to shrink the kernel a little. 2305 2306 If unsure, say y. 2307 2308config CPU_R2300_FPU 2309 bool 2310 depends on MIPS_FP_SUPPORT 2311 default y if CPU_R3000 || CPU_TX39XX 2312 2313config CPU_R4K_FPU 2314 bool 2315 depends on MIPS_FP_SUPPORT 2316 default y if !CPU_R2300_FPU 2317 2318config CPU_R4K_CACHE_TLB 2319 bool 2320 default y if !(CPU_R3000 || CPU_R8000 || CPU_SB1 || CPU_TX39XX || CPU_CAVIUM_OCTEON) 2321 2322config MIPS_MT_SMP 2323 bool "MIPS MT SMP support (1 TC on each available VPE)" 2324 default y 2325 depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS 2326 select CPU_MIPSR2_IRQ_VI 2327 select CPU_MIPSR2_IRQ_EI 2328 select SYNC_R4K 2329 select MIPS_MT 2330 select SMP 2331 select SMP_UP 2332 select SYS_SUPPORTS_SMP 2333 select SYS_SUPPORTS_SCHED_SMT 2334 select MIPS_PERF_SHARED_TC_COUNTERS 2335 help 2336 This is a kernel model which is known as SMVP. This is supported 2337 on cores with the MT ASE and uses the available VPEs to implement 2338 virtual processors which supports SMP. This is equivalent to the 2339 Intel Hyperthreading feature. For further information go to 2340 <http://www.imgtec.com/mips/mips-multithreading.asp>. 2341 2342config MIPS_MT 2343 bool 2344 2345config SCHED_SMT 2346 bool "SMT (multithreading) scheduler support" 2347 depends on SYS_SUPPORTS_SCHED_SMT 2348 default n 2349 help 2350 SMT scheduler support improves the CPU scheduler's decision making 2351 when dealing with MIPS MT enabled cores at a cost of slightly 2352 increased overhead in some places. If unsure say N here. 2353 2354config SYS_SUPPORTS_SCHED_SMT 2355 bool 2356 2357config SYS_SUPPORTS_MULTITHREADING 2358 bool 2359 2360config MIPS_MT_FPAFF 2361 bool "Dynamic FPU affinity for FP-intensive threads" 2362 default y 2363 depends on MIPS_MT_SMP 2364 2365config MIPSR2_TO_R6_EMULATOR 2366 bool "MIPS R2-to-R6 emulator" 2367 depends on CPU_MIPSR6 2368 depends on MIPS_FP_SUPPORT 2369 default y 2370 help 2371 Choose this option if you want to run non-R6 MIPS userland code. 2372 Even if you say 'Y' here, the emulator will still be disabled by 2373 default. You can enable it using the 'mipsr2emu' kernel option. 2374 The only reason this is a build-time option is to save ~14K from the 2375 final kernel image. 2376 2377config SYS_SUPPORTS_VPE_LOADER 2378 bool 2379 depends on SYS_SUPPORTS_MULTITHREADING 2380 help 2381 Indicates that the platform supports the VPE loader, and provides 2382 physical_memsize. 2383 2384config MIPS_VPE_LOADER 2385 bool "VPE loader support." 2386 depends on SYS_SUPPORTS_VPE_LOADER && MODULES 2387 select CPU_MIPSR2_IRQ_VI 2388 select CPU_MIPSR2_IRQ_EI 2389 select MIPS_MT 2390 help 2391 Includes a loader for loading an elf relocatable object 2392 onto another VPE and running it. 2393 2394config MIPS_VPE_LOADER_CMP 2395 bool 2396 default "y" 2397 depends on MIPS_VPE_LOADER && MIPS_CMP 2398 2399config MIPS_VPE_LOADER_MT 2400 bool 2401 default "y" 2402 depends on MIPS_VPE_LOADER && !MIPS_CMP 2403 2404config MIPS_VPE_LOADER_TOM 2405 bool "Load VPE program into memory hidden from linux" 2406 depends on MIPS_VPE_LOADER 2407 default y 2408 help 2409 The loader can use memory that is present but has been hidden from 2410 Linux using the kernel command line option "mem=xxMB". It's up to 2411 you to ensure the amount you put in the option and the space your 2412 program requires is less or equal to the amount physically present. 2413 2414config MIPS_VPE_APSP_API 2415 bool "Enable support for AP/SP API (RTLX)" 2416 depends on MIPS_VPE_LOADER 2417 2418config MIPS_VPE_APSP_API_CMP 2419 bool 2420 default "y" 2421 depends on MIPS_VPE_APSP_API && MIPS_CMP 2422 2423config MIPS_VPE_APSP_API_MT 2424 bool 2425 default "y" 2426 depends on MIPS_VPE_APSP_API && !MIPS_CMP 2427 2428config MIPS_CMP 2429 bool "MIPS CMP framework support (DEPRECATED)" 2430 depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6 2431 select SMP 2432 select SYNC_R4K 2433 select SYS_SUPPORTS_SMP 2434 select WEAK_ORDERING 2435 default n 2436 help 2437 Select this if you are using a bootloader which implements the "CMP 2438 framework" protocol (ie. YAMON) and want your kernel to make use of 2439 its ability to start secondary CPUs. 2440 2441 Unless you have a specific need, you should use CONFIG_MIPS_CPS 2442 instead of this. 2443 2444config MIPS_CPS 2445 bool "MIPS Coherent Processing System support" 2446 depends on SYS_SUPPORTS_MIPS_CPS 2447 select MIPS_CM 2448 select MIPS_CPS_PM if HOTPLUG_CPU 2449 select SMP 2450 select SYNC_R4K if (CEVT_R4K || CSRC_R4K) 2451 select SYS_SUPPORTS_HOTPLUG_CPU 2452 select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6 2453 select SYS_SUPPORTS_SMP 2454 select WEAK_ORDERING 2455 help 2456 Select this if you wish to run an SMP kernel across multiple cores 2457 within a MIPS Coherent Processing System. When this option is 2458 enabled the kernel will probe for other cores and boot them with 2459 no external assistance. It is safe to enable this when hardware 2460 support is unavailable. 2461 2462config MIPS_CPS_PM 2463 depends on MIPS_CPS 2464 bool 2465 2466config MIPS_CM 2467 bool 2468 select MIPS_CPC 2469 2470config MIPS_CPC 2471 bool 2472 2473config SB1_PASS_2_WORKAROUNDS 2474 bool 2475 depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2) 2476 default y 2477 2478config SB1_PASS_2_1_WORKAROUNDS 2479 bool 2480 depends on CPU_SB1 && CPU_SB1_PASS_2 2481 default y 2482 2483 2484choice 2485 prompt "SmartMIPS or microMIPS ASE support" 2486 2487config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS 2488 bool "None" 2489 help 2490 Select this if you want neither microMIPS nor SmartMIPS support 2491 2492config CPU_HAS_SMARTMIPS 2493 depends on SYS_SUPPORTS_SMARTMIPS 2494 bool "SmartMIPS" 2495 help 2496 SmartMIPS is a extension of the MIPS32 architecture aimed at 2497 increased security at both hardware and software level for 2498 smartcards. Enabling this option will allow proper use of the 2499 SmartMIPS instructions by Linux applications. However a kernel with 2500 this option will not work on a MIPS core without SmartMIPS core. If 2501 you don't know you probably don't have SmartMIPS and should say N 2502 here. 2503 2504config CPU_MICROMIPS 2505 depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6 2506 bool "microMIPS" 2507 help 2508 When this option is enabled the kernel will be built using the 2509 microMIPS ISA 2510 2511endchoice 2512 2513config CPU_HAS_MSA 2514 bool "Support for the MIPS SIMD Architecture" 2515 depends on CPU_SUPPORTS_MSA 2516 depends on MIPS_FP_SUPPORT 2517 depends on 64BIT || MIPS_O32_FP64_SUPPORT 2518 help 2519 MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers 2520 and a set of SIMD instructions to operate on them. When this option 2521 is enabled the kernel will support allocating & switching MSA 2522 vector register contexts. If you know that your kernel will only be 2523 running on CPUs which do not support MSA or that your userland will 2524 not be making use of it then you may wish to say N here to reduce 2525 the size & complexity of your kernel. 2526 2527 If unsure, say Y. 2528 2529config CPU_HAS_WB 2530 bool 2531 2532config XKS01 2533 bool 2534 2535config CPU_HAS_RIXI 2536 bool 2537 2538config CPU_HAS_LOAD_STORE_LR 2539 bool 2540 help 2541 CPU has support for unaligned load and store instructions: 2542 LWL, LWR, SWL, SWR (Load/store word left/right). 2543 LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit systems). 2544 2545# 2546# Vectored interrupt mode is an R2 feature 2547# 2548config CPU_MIPSR2_IRQ_VI 2549 bool 2550 2551# 2552# Extended interrupt mode is an R2 feature 2553# 2554config CPU_MIPSR2_IRQ_EI 2555 bool 2556 2557config CPU_HAS_SYNC 2558 bool 2559 depends on !CPU_R3000 2560 default y 2561 2562# 2563# CPU non-features 2564# 2565config CPU_DADDI_WORKAROUNDS 2566 bool 2567 2568config CPU_R4000_WORKAROUNDS 2569 bool 2570 select CPU_R4400_WORKAROUNDS 2571 2572config CPU_R4400_WORKAROUNDS 2573 bool 2574 2575config MIPS_ASID_SHIFT 2576 int 2577 default 6 if CPU_R3000 || CPU_TX39XX 2578 default 4 if CPU_R8000 2579 default 0 2580 2581config MIPS_ASID_BITS 2582 int 2583 default 0 if MIPS_ASID_BITS_VARIABLE 2584 default 6 if CPU_R3000 || CPU_TX39XX 2585 default 8 2586 2587config MIPS_ASID_BITS_VARIABLE 2588 bool 2589 2590config MIPS_CRC_SUPPORT 2591 bool 2592 2593# 2594# - Highmem only makes sense for the 32-bit kernel. 2595# - The current highmem code will only work properly on physically indexed 2596# caches such as R3000, SB1, R7000 or those that look like they're virtually 2597# indexed such as R4000/R4400 SC and MC versions or R10000. So for the 2598# moment we protect the user and offer the highmem option only on machines 2599# where it's known to be safe. This will not offer highmem on a few systems 2600# such as MIPS32 and MIPS64 CPUs which may have virtual and physically 2601# indexed CPUs but we're playing safe. 2602# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we 2603# know they might have memory configurations that could make use of highmem 2604# support. 2605# 2606config HIGHMEM 2607 bool "High Memory Support" 2608 depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA 2609 2610config CPU_SUPPORTS_HIGHMEM 2611 bool 2612 2613config SYS_SUPPORTS_HIGHMEM 2614 bool 2615 2616config SYS_SUPPORTS_SMARTMIPS 2617 bool 2618 2619config SYS_SUPPORTS_MICROMIPS 2620 bool 2621 2622config SYS_SUPPORTS_MIPS16 2623 bool 2624 help 2625 This option must be set if a kernel might be executed on a MIPS16- 2626 enabled CPU even if MIPS16 is not actually being used. In other 2627 words, it makes the kernel MIPS16-tolerant. 2628 2629config CPU_SUPPORTS_MSA 2630 bool 2631 2632config ARCH_FLATMEM_ENABLE 2633 def_bool y 2634 depends on !NUMA && !CPU_LOONGSON2 2635 2636config ARCH_DISCONTIGMEM_ENABLE 2637 bool 2638 default y if SGI_IP27 2639 help 2640 Say Y to support efficient handling of discontiguous physical memory, 2641 for architectures which are either NUMA (Non-Uniform Memory Access) 2642 or have huge holes in the physical address space for other reasons. 2643 See <file:Documentation/vm/numa.rst> for more. 2644 2645config ARCH_SPARSEMEM_ENABLE 2646 bool 2647 select SPARSEMEM_STATIC 2648 2649config NUMA 2650 bool "NUMA Support" 2651 depends on SYS_SUPPORTS_NUMA 2652 help 2653 Say Y to compile the kernel to support NUMA (Non-Uniform Memory 2654 Access). This option improves performance on systems with more 2655 than two nodes; on two node systems it is generally better to 2656 leave it disabled; on single node systems disable this option 2657 disabled. 2658 2659config SYS_SUPPORTS_NUMA 2660 bool 2661 2662config RELOCATABLE 2663 bool "Relocatable kernel" 2664 depends on SYS_SUPPORTS_RELOCATABLE && (CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_MIPS32_R6 || CPU_MIPS64_R6 || CAVIUM_OCTEON_SOC) 2665 help 2666 This builds a kernel image that retains relocation information 2667 so it can be loaded someplace besides the default 1MB. 2668 The relocations make the kernel binary about 15% larger, 2669 but are discarded at runtime 2670 2671config RELOCATION_TABLE_SIZE 2672 hex "Relocation table size" 2673 depends on RELOCATABLE 2674 range 0x0 0x01000000 2675 default "0x00100000" 2676 ---help--- 2677 A table of relocation data will be appended to the kernel binary 2678 and parsed at boot to fix up the relocated kernel. 2679 2680 This option allows the amount of space reserved for the table to be 2681 adjusted, although the default of 1Mb should be ok in most cases. 2682 2683 The build will fail and a valid size suggested if this is too small. 2684 2685 If unsure, leave at the default value. 2686 2687config RANDOMIZE_BASE 2688 bool "Randomize the address of the kernel image" 2689 depends on RELOCATABLE 2690 ---help--- 2691 Randomizes the physical and virtual address at which the 2692 kernel image is loaded, as a security feature that 2693 deters exploit attempts relying on knowledge of the location 2694 of kernel internals. 2695 2696 Entropy is generated using any coprocessor 0 registers available. 2697 2698 The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET. 2699 2700 If unsure, say N. 2701 2702config RANDOMIZE_BASE_MAX_OFFSET 2703 hex "Maximum kASLR offset" if EXPERT 2704 depends on RANDOMIZE_BASE 2705 range 0x0 0x40000000 if EVA || 64BIT 2706 range 0x0 0x08000000 2707 default "0x01000000" 2708 ---help--- 2709 When kASLR is active, this provides the maximum offset that will 2710 be applied to the kernel image. It should be set according to the 2711 amount of physical RAM available in the target system minus 2712 PHYSICAL_START and must be a power of 2. 2713 2714 This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with 2715 EVA or 64-bit. The default is 16Mb. 2716 2717config NODES_SHIFT 2718 int 2719 default "6" 2720 depends on NEED_MULTIPLE_NODES 2721 2722config HW_PERF_EVENTS 2723 bool "Enable hardware performance counter support for perf events" 2724 depends on PERF_EVENTS && !OPROFILE && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON3) 2725 default y 2726 help 2727 Enable hardware performance counter support for perf events. If 2728 disabled, perf events will use software events only. 2729 2730config SMP 2731 bool "Multi-Processing support" 2732 depends on SYS_SUPPORTS_SMP 2733 help 2734 This enables support for systems with more than one CPU. If you have 2735 a system with only one CPU, say N. If you have a system with more 2736 than one CPU, say Y. 2737 2738 If you say N here, the kernel will run on uni- and multiprocessor 2739 machines, but will use only one CPU of a multiprocessor machine. If 2740 you say Y here, the kernel will run on many, but not all, 2741 uniprocessor machines. On a uniprocessor machine, the kernel 2742 will run faster if you say N here. 2743 2744 People using multiprocessor machines who say Y here should also say 2745 Y to "Enhanced Real Time Clock Support", below. 2746 2747 See also the SMP-HOWTO available at 2748 <http://www.tldp.org/docs.html#howto>. 2749 2750 If you don't know what to do here, say N. 2751 2752config HOTPLUG_CPU 2753 bool "Support for hot-pluggable CPUs" 2754 depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU 2755 help 2756 Say Y here to allow turning CPUs off and on. CPUs can be 2757 controlled through /sys/devices/system/cpu. 2758 (Note: power management support will enable this option 2759 automatically on SMP systems. ) 2760 Say N if you want to disable CPU hotplug. 2761 2762config SMP_UP 2763 bool 2764 2765config SYS_SUPPORTS_MIPS_CMP 2766 bool 2767 2768config SYS_SUPPORTS_MIPS_CPS 2769 bool 2770 2771config SYS_SUPPORTS_SMP 2772 bool 2773 2774config NR_CPUS_DEFAULT_4 2775 bool 2776 2777config NR_CPUS_DEFAULT_8 2778 bool 2779 2780config NR_CPUS_DEFAULT_16 2781 bool 2782 2783config NR_CPUS_DEFAULT_32 2784 bool 2785 2786config NR_CPUS_DEFAULT_64 2787 bool 2788 2789config NR_CPUS 2790 int "Maximum number of CPUs (2-256)" 2791 range 2 256 2792 depends on SMP 2793 default "4" if NR_CPUS_DEFAULT_4 2794 default "8" if NR_CPUS_DEFAULT_8 2795 default "16" if NR_CPUS_DEFAULT_16 2796 default "32" if NR_CPUS_DEFAULT_32 2797 default "64" if NR_CPUS_DEFAULT_64 2798 help 2799 This allows you to specify the maximum number of CPUs which this 2800 kernel will support. The maximum supported value is 32 for 32-bit 2801 kernel and 64 for 64-bit kernels; the minimum value which makes 2802 sense is 1 for Qemu (useful only for kernel debugging purposes) 2803 and 2 for all others. 2804 2805 This is purely to save memory - each supported CPU adds 2806 approximately eight kilobytes to the kernel image. For best 2807 performance should round up your number of processors to the next 2808 power of two. 2809 2810config MIPS_PERF_SHARED_TC_COUNTERS 2811 bool 2812 2813config MIPS_NR_CPU_NR_MAP_1024 2814 bool 2815 2816config MIPS_NR_CPU_NR_MAP 2817 int 2818 depends on SMP 2819 default 1024 if MIPS_NR_CPU_NR_MAP_1024 2820 default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024 2821 2822# 2823# Timer Interrupt Frequency Configuration 2824# 2825 2826choice 2827 prompt "Timer frequency" 2828 default HZ_250 2829 help 2830 Allows the configuration of the timer frequency. 2831 2832 config HZ_24 2833 bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ 2834 2835 config HZ_48 2836 bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ 2837 2838 config HZ_100 2839 bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ 2840 2841 config HZ_128 2842 bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ 2843 2844 config HZ_250 2845 bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ 2846 2847 config HZ_256 2848 bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ 2849 2850 config HZ_1000 2851 bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ 2852 2853 config HZ_1024 2854 bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ 2855 2856endchoice 2857 2858config SYS_SUPPORTS_24HZ 2859 bool 2860 2861config SYS_SUPPORTS_48HZ 2862 bool 2863 2864config SYS_SUPPORTS_100HZ 2865 bool 2866 2867config SYS_SUPPORTS_128HZ 2868 bool 2869 2870config SYS_SUPPORTS_250HZ 2871 bool 2872 2873config SYS_SUPPORTS_256HZ 2874 bool 2875 2876config SYS_SUPPORTS_1000HZ 2877 bool 2878 2879config SYS_SUPPORTS_1024HZ 2880 bool 2881 2882config SYS_SUPPORTS_ARBIT_HZ 2883 bool 2884 default y if !SYS_SUPPORTS_24HZ && \ 2885 !SYS_SUPPORTS_48HZ && \ 2886 !SYS_SUPPORTS_100HZ && \ 2887 !SYS_SUPPORTS_128HZ && \ 2888 !SYS_SUPPORTS_250HZ && \ 2889 !SYS_SUPPORTS_256HZ && \ 2890 !SYS_SUPPORTS_1000HZ && \ 2891 !SYS_SUPPORTS_1024HZ 2892 2893config HZ 2894 int 2895 default 24 if HZ_24 2896 default 48 if HZ_48 2897 default 100 if HZ_100 2898 default 128 if HZ_128 2899 default 250 if HZ_250 2900 default 256 if HZ_256 2901 default 1000 if HZ_1000 2902 default 1024 if HZ_1024 2903 2904config SCHED_HRTICK 2905 def_bool HIGH_RES_TIMERS 2906 2907config KEXEC 2908 bool "Kexec system call" 2909 select KEXEC_CORE 2910 help 2911 kexec is a system call that implements the ability to shutdown your 2912 current kernel, and to start another kernel. It is like a reboot 2913 but it is independent of the system firmware. And like a reboot 2914 you can start any kernel with it, not just Linux. 2915 2916 The name comes from the similarity to the exec system call. 2917 2918 It is an ongoing process to be certain the hardware in a machine 2919 is properly shutdown, so do not be surprised if this code does not 2920 initially work for you. As of this writing the exact hardware 2921 interface is strongly in flux, so no good recommendation can be 2922 made. 2923 2924config CRASH_DUMP 2925 bool "Kernel crash dumps" 2926 help 2927 Generate crash dump after being started by kexec. 2928 This should be normally only set in special crash dump kernels 2929 which are loaded in the main kernel with kexec-tools into 2930 a specially reserved region and then later executed after 2931 a crash by kdump/kexec. The crash dump kernel must be compiled 2932 to a memory address not used by the main kernel or firmware using 2933 PHYSICAL_START. 2934 2935config PHYSICAL_START 2936 hex "Physical address where the kernel is loaded" 2937 default "0xffffffff84000000" 2938 depends on CRASH_DUMP 2939 help 2940 This gives the CKSEG0 or KSEG0 address where the kernel is loaded. 2941 If you plan to use kernel for capturing the crash dump change 2942 this value to start of the reserved region (the "X" value as 2943 specified in the "crashkernel=YM@XM" command line boot parameter 2944 passed to the panic-ed kernel). 2945 2946config SECCOMP 2947 bool "Enable seccomp to safely compute untrusted bytecode" 2948 depends on PROC_FS 2949 default y 2950 help 2951 This kernel feature is useful for number crunching applications 2952 that may need to compute untrusted bytecode during their 2953 execution. By using pipes or other transports made available to 2954 the process as file descriptors supporting the read/write 2955 syscalls, it's possible to isolate those applications in 2956 their own address space using seccomp. Once seccomp is 2957 enabled via /proc/<pid>/seccomp, it cannot be disabled 2958 and the task is only allowed to execute a few safe syscalls 2959 defined by each seccomp mode. 2960 2961 If unsure, say Y. Only embedded should say N here. 2962 2963config MIPS_O32_FP64_SUPPORT 2964 bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6 2965 depends on 32BIT || MIPS32_O32 2966 help 2967 When this is enabled, the kernel will support use of 64-bit floating 2968 point registers with binaries using the O32 ABI along with the 2969 EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On 2970 32-bit MIPS systems this support is at the cost of increasing the 2971 size and complexity of the compiled FPU emulator. Thus if you are 2972 running a MIPS32 system and know that none of your userland binaries 2973 will require 64-bit floating point, you may wish to reduce the size 2974 of your kernel & potentially improve FP emulation performance by 2975 saying N here. 2976 2977 Although binutils currently supports use of this flag the details 2978 concerning its effect upon the O32 ABI in userland are still being 2979 worked on. In order to avoid userland becoming dependant upon current 2980 behaviour before the details have been finalised, this option should 2981 be considered experimental and only enabled by those working upon 2982 said details. 2983 2984 If unsure, say N. 2985 2986config USE_OF 2987 bool 2988 select OF 2989 select OF_EARLY_FLATTREE 2990 select IRQ_DOMAIN 2991 2992config UHI_BOOT 2993 bool 2994 2995config BUILTIN_DTB 2996 bool 2997 2998choice 2999 prompt "Kernel appended dtb support" if USE_OF 3000 default MIPS_NO_APPENDED_DTB 3001 3002 config MIPS_NO_APPENDED_DTB 3003 bool "None" 3004 help 3005 Do not enable appended dtb support. 3006 3007 config MIPS_ELF_APPENDED_DTB 3008 bool "vmlinux" 3009 help 3010 With this option, the boot code will look for a device tree binary 3011 DTB) included in the vmlinux ELF section .appended_dtb. By default 3012 it is empty and the DTB can be appended using binutils command 3013 objcopy: 3014 3015 objcopy --update-section .appended_dtb=<filename>.dtb vmlinux 3016 3017 This is meant as a backward compatiblity convenience for those 3018 systems with a bootloader that can't be upgraded to accommodate 3019 the documented boot protocol using a device tree. 3020 3021 config MIPS_RAW_APPENDED_DTB 3022 bool "vmlinux.bin or vmlinuz.bin" 3023 help 3024 With this option, the boot code will look for a device tree binary 3025 DTB) appended to raw vmlinux.bin or vmlinuz.bin. 3026 (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb). 3027 3028 This is meant as a backward compatibility convenience for those 3029 systems with a bootloader that can't be upgraded to accommodate 3030 the documented boot protocol using a device tree. 3031 3032 Beware that there is very little in terms of protection against 3033 this option being confused by leftover garbage in memory that might 3034 look like a DTB header after a reboot if no actual DTB is appended 3035 to vmlinux.bin. Do not leave this option active in a production kernel 3036 if you don't intend to always append a DTB. 3037endchoice 3038 3039choice 3040 prompt "Kernel command line type" if !CMDLINE_OVERRIDE 3041 default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ 3042 !MIPS_MALTA && \ 3043 !CAVIUM_OCTEON_SOC 3044 default MIPS_CMDLINE_FROM_BOOTLOADER 3045 3046 config MIPS_CMDLINE_FROM_DTB 3047 depends on USE_OF 3048 bool "Dtb kernel arguments if available" 3049 3050 config MIPS_CMDLINE_DTB_EXTEND 3051 depends on USE_OF 3052 bool "Extend dtb kernel arguments with bootloader arguments" 3053 3054 config MIPS_CMDLINE_FROM_BOOTLOADER 3055 bool "Bootloader kernel arguments if available" 3056 3057 config MIPS_CMDLINE_BUILTIN_EXTEND 3058 depends on CMDLINE_BOOL 3059 bool "Extend builtin kernel arguments with bootloader arguments" 3060endchoice 3061 3062endmenu 3063 3064config LOCKDEP_SUPPORT 3065 bool 3066 default y 3067 3068config STACKTRACE_SUPPORT 3069 bool 3070 default y 3071 3072config HAVE_LATENCYTOP_SUPPORT 3073 bool 3074 default y 3075 3076config PGTABLE_LEVELS 3077 int 3078 default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48 3079 default 3 if 64BIT && !PAGE_SIZE_64KB 3080 default 2 3081 3082config MIPS_AUTO_PFN_OFFSET 3083 bool 3084 3085menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)" 3086 3087config PCI_DRIVERS_GENERIC 3088 select PCI_DOMAINS_GENERIC if PCI 3089 bool 3090 3091config PCI_DRIVERS_LEGACY 3092 def_bool !PCI_DRIVERS_GENERIC 3093 select NO_GENERIC_PCI_IOPORT_MAP 3094 select PCI_DOMAINS if PCI 3095 3096# 3097# ISA support is now enabled via select. Too many systems still have the one 3098# or other ISA chip on the board that users don't know about so don't expect 3099# users to choose the right thing ... 3100# 3101config ISA 3102 bool 3103 3104config TC 3105 bool "TURBOchannel support" 3106 depends on MACH_DECSTATION 3107 help 3108 TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS 3109 processors. TURBOchannel programming specifications are available 3110 at: 3111 <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/> 3112 and: 3113 <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/> 3114 Linux driver support status is documented at: 3115 <http://www.linux-mips.org/wiki/DECstation> 3116 3117config MMU 3118 bool 3119 default y 3120 3121config ARCH_MMAP_RND_BITS_MIN 3122 default 12 if 64BIT 3123 default 8 3124 3125config ARCH_MMAP_RND_BITS_MAX 3126 default 18 if 64BIT 3127 default 15 3128 3129config ARCH_MMAP_RND_COMPAT_BITS_MIN 3130 default 8 3131 3132config ARCH_MMAP_RND_COMPAT_BITS_MAX 3133 default 15 3134 3135config I8253 3136 bool 3137 select CLKSRC_I8253 3138 select CLKEVT_I8253 3139 select MIPS_EXTERNAL_TIMER 3140 3141config ZONE_DMA 3142 bool 3143 3144config ZONE_DMA32 3145 bool 3146 3147endmenu 3148 3149config TRAD_SIGNALS 3150 bool 3151 3152config MIPS32_COMPAT 3153 bool 3154 3155config COMPAT 3156 bool 3157 3158config SYSVIPC_COMPAT 3159 bool 3160 3161config MIPS32_O32 3162 bool "Kernel support for o32 binaries" 3163 depends on 64BIT 3164 select ARCH_WANT_OLD_COMPAT_IPC 3165 select COMPAT 3166 select MIPS32_COMPAT 3167 select SYSVIPC_COMPAT if SYSVIPC 3168 help 3169 Select this option if you want to run o32 binaries. These are pure 3170 32-bit binaries as used by the 32-bit Linux/MIPS port. Most of 3171 existing binaries are in this format. 3172 3173 If unsure, say Y. 3174 3175config MIPS32_N32 3176 bool "Kernel support for n32 binaries" 3177 depends on 64BIT 3178 select ARCH_WANT_COMPAT_IPC_PARSE_VERSION 3179 select COMPAT 3180 select MIPS32_COMPAT 3181 select SYSVIPC_COMPAT if SYSVIPC 3182 help 3183 Select this option if you want to run n32 binaries. These are 3184 64-bit binaries using 32-bit quantities for addressing and certain 3185 data that would normally be 64-bit. They are used in special 3186 cases. 3187 3188 If unsure, say N. 3189 3190config BINFMT_ELF32 3191 bool 3192 default y if MIPS32_O32 || MIPS32_N32 3193 select ELFCORE 3194 3195menu "Power management options" 3196 3197config ARCH_HIBERNATION_POSSIBLE 3198 def_bool y 3199 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3200 3201config ARCH_SUSPEND_POSSIBLE 3202 def_bool y 3203 depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP 3204 3205source "kernel/power/Kconfig" 3206 3207endmenu 3208 3209config MIPS_EXTERNAL_TIMER 3210 bool 3211 3212menu "CPU Power Management" 3213 3214if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER 3215source "drivers/cpufreq/Kconfig" 3216endif 3217 3218source "drivers/cpuidle/Kconfig" 3219 3220endmenu 3221 3222source "drivers/firmware/Kconfig" 3223 3224source "arch/mips/kvm/Kconfig" 3225